CN101253739B - Methods and devices for interworking of wireless wide area networks and wireless local area networks or wireless personal area networks - Google Patents
Methods and devices for interworking of wireless wide area networks and wireless local area networks or wireless personal area networks Download PDFInfo
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Abstract
Embodiments describe registration in a wireless communication system. A method includes wirelessly transmitting over a WWAN a first registration message from a mobile device, wirelessly transmitting through the WWAN a second registration message to a WLAN access point and receiving at the mobile device access through the WLAN access point. According to another embodiment is a method for constructing a self-configuring ad-hoc network. The method can include receiving a GPS coordinate from a WWAN channel node at a management system and creating an initial topography based at least in part on the GPS coordinate to achieve a network connectivity with diverse routes between a plurality of nodes.
Description
The cross reference of related application
the application's case is advocated to be entitled as the 60/697th of METHODSAND DEVICES FOR INTERWORKING OF WIRELESS WIDE AREA NETWORKS ANDWIRELESS LOCAL AREA NETWORKS OR WIRELESS PERSONAL AREA NETWORKS based on application on July 7th, 2005 according to 35U.S.C. § 119 (e), the application of No. 504 U.S. Provisional Patent Application cases and on August 29th, 2005 be entitled as the 60/712nd of METHODSAND DEVICES FOR INTERWORKING OF WIRELESS WIDE AREA NETWORKS ANDWIRELESS LOCAL AREA NETWORKS OR WIRELESS PERSONAL AREA NETWORKS, the priority of No. 320 U.S. Provisional Patent Application cases, described application case is incorporated herein by reference in full.
Technical field
Below describe content and relate generally to wireless network, and relate in particular to the seamless interworking of the communication between wireless wide area network (WWAN), WLAN (wireless local area network) (WLAN) and/or Wireless Personal Network (WPAN).
Background technology
Electronic installation can comprise a plurality of communication protocols.For instance, mobile device has become multi-function device, and it provides Email, internet access and traditional cellular communication continually.Mobile device can (for example) utilizes any one or both in following technology and is equipped with the wide-area wireless connectivity: the third generation is wireless or cellular system (3G) or Institute of Electrical and Electric Engineers (IEEE) 802.16 (WiMax) and other WWAN technology to be defined.Simultaneously, the WLAN connectivity based on IEEE 802.11 also is installed in mobile device.Ultra broadband (UWB) and/or also soon can use in mobile device based on the WPAN local interconnection of bluetooth.
Other example of a plurality of communication protocols in electronic installation comprises laptop computer, and it can comprise for described laptop computer being connected to the WPAN of wireless mouse, Wireless Keyboard etc.In addition, laptop computer can be included in the device of the upper operation of other agreement to be defined in any current IEEE that defines 802.11 agreements (IEEE 802.11a/b/g/i/e) or IEEE 802.11 series (for example, IEEE 802.11n/s/r/p).WLAN catches on, and (for example) is just for individual and commercial object and building in family and enterprise.In addition, cafe, Internet bar, library and public and private organization also utilize WLAN.
The WWAN technology is with wide area (ubiquitous) covering and wide-area deployment and famous.Yet it may suffer building penetration loss, cover the cavity, and compares with WPAN with WLAN and have limited bandwidth.WLAN and WPAN technology provide very high data rate, near hundreds of megabit second, usually are limited to the hundreds of foot in the situation of WLAN and in the situation that WPAN is limited to tens feet usually but cover.
The number of network and agreement is because the cause for the functional demand that is associated with unique users demand and dispersion protocol increases rapidly.The user is switched effort between this type of diverse network and agreement, and in many cases, and the user is trapped in a network and does not consider may be what in preset time for the network of described user's the best.In view of above content, need to provide bumpless transfer between network and/or agreement to optimize and to concentrate on communication protocol for user's the best.
Summary of the invention
Below provide the simplification general introduction to one or more embodiment, in order to the basic comprehension to some aspects of this type of embodiment is provided.This general introduction is not the extensive overview of described one or more embodiment, and neither wishes to differentiate key or the important element of embodiment, does not wish to describe the scope of this type of embodiment yet.Its sole purpose is some concepts that the form simplified provides described embodiment, as the preamble of describing in detail that provides after a while.
Pass network and the agreement of number of different types due to individual migration, help steady, seamless communication so the embodiment of this paper provides the user to pass the bumpless transfer of diverse network and agreement.Embodiment provides various optimisation techniques changing between diverse network and agreement, and this conversion can be based on user preference, customer location, signal strength signal intensity and/or other standard.This bumpless transfer can be transparent or can open the beginning by the user for the user.
According to a feature, it is a kind of method of utilizing time-based information to improve the communication in wireless network.Described method comprises from least one access point reception beacon message, and the timestamp information that utilization is associated with described beacon message determines whether carrying out handover with communicating by letter of the second access point.According to another feature, but described method inclusion test beacon quality is transmitted poor beacon quality information below threshold level, and receives in response to the poor beacon quality information of described transmission about a plurality of alternately information of access point.
According to another feature, it is a kind of method of carrying out handover in wireless network.But the existence of described method inclusion test WWAN access point and WLAN access point, and beacon regularly is associated with a plurality of beacons that receive from each access point.Described method also can comprise at least part of beacon based on being associated and regularly be confirmed whether to shift between WWAN and WLAN.Be confirmed whether to shift between WWAN and WLAN and can further comprise the application whether bandwidth of determining WWAN or WLAN is enough to adapt to mobile device.
Another feature is a kind of mobile device, and it comprises the memory of the storage requirement relevant with application of installation, and the information of analyzing stored in memory also partly comes regularly to determine based on beacon whether network satisfies the processor that application of installation requires.Can recommend the handover between WLAN and WWAN.Described mobile device can further comprise wlan component, and it is configured to produce the timestamp that is associated with a plurality of beacons of mobile device place's reception.Also can comprise the WWAN assembly with the wlan component coupling in mobile device.Described WWAN assembly can be configured to produce the signal of the timing of the beacon that receives to WWAN indication wlan component place.
According to another feature, be a kind of for strengthen the equipment of network service by time-based information.Described equipment can comprise the device for generation of the timestamp that is associated with a plurality of beacons that receive from least one access point, and is used for the device that at least part of timestamp based on being associated with a plurality of beacons that receive determines whether switching to the second access point.According to another feature, described equipment can comprise for the management handover dispatches to adapt to the device of the application of described equipment.
According to another aspect, it is the computer-readable media that stores computer executable instructions above a kind of, described media can comprise from one or more access points and receive beacon message, and utilize the functional time of advent stamp of making of global positioning system (GPS) to be associated with described beacon message.Described media can further utilize the timestamp beacon message to determine handoff management scheduling between WWAN, WLAN or WPAN.
Another aspect is that a kind of execution is used for carrying out the processor of the instruction of seamless switching between WWAN and WLAN.Described instruction can comprise from access point reception beacon, and time of reception is associated with beacon, and detects beacon quality level.Described beacon quality level can be transferred to management system together with the time of reception that is associated, and can determine whether switching between WWAN and WLAN based on the information that receives from management system in response to the beacon quality level of transmitting and the beacon time of reception that is associated.
In order to realize above and relevant purpose, one or more embodiment comprise the feature that explicitly points out in hereinafter abundant description and claims.Content and accompanying drawing in detail some illustratives aspect of described one or more embodiment of statement is below described.Yet several modes in the variety of way that the principle of each embodiment can be used are only indicated in these aspects, and described embodiment wishes to comprise all these aspects and equivalent thereof.
Description of drawings
Fig. 1 explanation is according to the wireless communication system of each embodiment provided herein.
Fig. 2 is the explanation according to the multi-address radio communication system of one or more embodiment.
Fig. 3 is the block diagram of an embodiment of mobile device.
Fig. 4 illustrates the method for the type of the network of determining that mobile device should be connected to.
Fig. 5 is the simplified block diagram of another embodiment of mobile device.
Fig. 6 illustrates the method for the calling that the location receives from the user of the mobile device that utilizes the GPS functional assembly.
Fig. 7 illustrates that the location does not utilize the other method of the mobile device (for example, mobile phone) of gps receiver.
Fig. 8 explanation utilizes the method for the access point in WWAN, WLAN and/or WPAN network.
Fig. 9 explanation utilizes positional information seamlessly to switch the method for mobile device between WWAN and WLAN/WPAN.
Figure 10 illustrates another embodiment of the method for the service that utilizes positional information automatically to strengthen mobile device.
Figure 11 explanation provides the method for ad-hoc network under the situation that there is no available access point.
Figure 12 explanation can utilize the exemplary self-configuring ad-hoc network of WLAN and WWAN technical construction.
Figure 13 explanation utilizes WLAN and WWAN technology to construct the method for self-configuring ad-hoc network.
Figure 14 illustrates the synchronous method of adjacency side's list to help to access terminal on initialization WWAN control channel.
Figure 15 illustrates the peer-to-peer communications in wlan network.
The method that Figure 16 explanation is registered and/or verified in independent basic service set (IBSS) network.
Figure 17 illustrates exemplary ad-hoc mesh network.
Figure 18 explanation is according to the system of the communication between a plurality of communication protocols in one or more embodiment coordinating radio communication environment provided herein.
Figure 19 explanation is according to the system of the communication in various aspects coordinating radio communication environment.
Figure 20 explanation can be in conjunction with the wireless communications environment of various system and methods uses described herein.
Embodiment
Now referring to accompanying drawing, each embodiment is described.In following description content, for the purpose of explaination, state a large amount of specific detail in order to detailed understanding to one or more aspects is provided.Yet, obviously can be in the situation that do not have these specific detail to put into practice this type of embodiment.In other example, show that with the block diagram form well-known construction and device is in order to help to describe these embodiment.
As used in the present application, the hope such as term " assembly ", " system " refer to computer related entity, and it is combination, software or the executory software of hardware, firmware, hardware and software.For instance, assembly can be process, processor, object, executable program, execution thread, program and/or the computer that (but being not limited to) moved on processor.In the mode of explanation, the application that moves on calculation element and described calculation element can be all assemblies.One or more assemblies can reside in process and/or execution thread, and assembly can and/or be distributed between two or more computers on a computer.In addition, these assemblies can store the various computer-readable medias execution of various data structures above oneself.Assembly can be by this locality and/or remote process, for example according to (for example having one or more packets, from the data by an assembly of another component interaction in signal and local system, distributed system and/or and other system interaction upper at network (for example, internet)) signal communicate by letter.
The embodiment that discloses can comprise various heuristic and/or inference scheme and/or the technology of being combined with network or the communication protocol of the dynamic change of using.As used herein, term " deduction " refers to substantially from the process by release or inference system, environment and/or user's state one group of observations of event and/or data capture.Can identify specific situation or action with inferring, perhaps (for example) can produce the probability distribution about state.Deduction can be probabilistic, namely about the calculating of the probability distribution of the state paid close attention to based on the consideration to data and event.Infer the technology also can refer to for consisting of from one group of event and/or data than advanced event.This type of deduction causes new event or the action of structure from one group of observed event and/or the event data of storing, no matter whether described event is being closely related on degree around, and no matter described event and data from one or several events and data source.
Therefore, expection is according to embodiment described herein, but user's automatic shift or leave and enter the different communication district.Auto-action (for example, the user seamlessly is converted to WLAN from WWAN during communication session) can be thought along with inferring that the user changes with respect to the intention of handle communication sessions and third level communication, passive type/background communication and session on the horizon.With respect to taking auto-action, can implement machine learning techniques to help to carry out auto-action.In addition, the analysis (for example, will take the benefit of correct auto-action and take the cost of incorrect operation to carry out Factorization) based on effectiveness can be incorporated in the process of carrying out auto-action.More particularly, these can be by any suitable based on the technology of machine learning and/or implement based on the technology of statistics and/or the technology of Based on Probability based on the aspect of artificial intelligence (AI).For instance, expection (is for example used professional system, fuzzy logic, SVMs, greedy search algorithm, rule-based system, Bayes (Bayesian) model, Bayesian network), neural net, other non-linear training technique, data fusion, based on the analytical system of effectiveness, use the system of Bayesian model ..., and wish in these scopes that fall into appending claims herein.
In addition, this paper describes each embodiment in conjunction with subscriber station.Subscriber station also can be described as system, subscriber unit, travelling carriage, mobile device, distant station, access point, base station, remote terminal, accesses terminal, user terminal, user agent or subscriber equipment.Subscriber station can be that cellular phone, cordless telephone, session initiation protocol (SIP) phone, wireless local loop (WLL) are stood, personal digital assistant (PDA), have the handheld apparatus of wireless connections ability or be connected to other processing unit of radio modem.
In addition, but the programming of various aspects described herein or feature Application standard and/or engineering are embodied as method, equipment or product.Term used herein " product " wishes to contain can be from the computer program of any computer readable device, carrier or medium access.For instance, computer-readable media can be including (but not limited to) magnetic storage device (for example, hard disk, floppy disk, magnetic stripe ...), CD (for example, compact-disc (CD), digital multi-purpose disk (DVD) ...), smart card and flash memory device (for example, card, rod ... key drive).
Now referring to accompanying drawing, Fig. 1 explanation is according to the wireless communication system 100 of each embodiment provided herein.System 100 can comprise one or more access points 102, its each other and/or to one or more mobile devices 104 receive, transmission, repeat (etc.) wireless communication signals.Access point 102 can represent the interface between wireless system 100 and cable network (not shown).
Each access point 102 can comprise transmitter chain and receiver chain, its a plurality of assemblies (for example, processor, modulator, multiplexer, demodulator, demultiplexer, antenna that each can comprise again with signal transmits and reception is associated ...).Mobile device 104 can be (for example) cellular phone, smart phone, laptop computer, handheld communications device, hand-held computing device, satellite radio devices, global positioning system, PDA and/or other the suitable device that is used for communication on wireless system 100.In wireless system 100, can make the existence of knowing wireless system 100 and to system's 100 transmission informations from the cyclical transmission of the small data packets (being commonly referred to beacon) of access point 102.But mobile device 104 sensing beacons also attempt to set up the wireless connections that arrive access point 102 and/or arrive other mobile device 104.
The assembly that is arranged in mobile device 104 can operate to help to monitor which user at each network together with one or more access points 102, and can get help by GPS assembly and/or the WWAN assembly that is associated with mobile device 104.As an alternative or in addition, can positional information be provided to from the WLAN access point wlan component that is associated with the mobile device that does not comprise GPS or other positioning component.Can by via being near GPS or the fair positional information that accesses terminal and obtain with multi-mode of WAN that access point 104 is or communicate by letter with access point 104 (comprise and receive and the transmission beacon), described positional information be provided to the mobile device with stationkeeping ability.
Positional information can be used for predicting which user is suitable for carrying out transparent handover to second network most.For instance, in open zone commercial center, the user can use the mobile device 104 that is connected to common broadband network.Along with the user walks close to particular merchant, mobile device 104 can seamlessly switch to bluetooth, than arrowband etc.The network that mobile device switches to can wish to advance or be pulled to the content of mobile device 104 and change along with the user.
Because commercial network may be overlapping due to the dynamic characteristic in shopping center, so mobile device 104 can be in the situation that less than the mutual spontaneously seamless switching between each commercial network from the user.System 100 allows network cooperate each other and mobile device 104 is handed over to another network from a network.This can utilize the GPS assembly to realize, described GPS component monitors user's position and the required content of waiting to advance/be pulled to device.
Fig. 2 is the explanation according to the multi-address radio communication system of one or more embodiment.Illustrated system 200 comprises the WLAN that is associated with cable LAN (LAN).Access point 102 can be communicated by letter with mobile device 104.Access point 102 is connected to for the ethernet concentrator of LAN or electric wire connecting junction 202.Ethernet concentrator 202 can be connected to one or more electronic installations 204, and described electronic installation 204 can comprise personal computer, peripheral unit (for example, facsimile machine, photocopier, printer, scanner etc.), server etc.Ethernet concentrator 202 can be connected to router two 06, and described router two 06 arrives modulator-demodulator 208 with data packet transmission.Modulator-demodulator 208 can be with data packet transmission to wide area network (WAN) 210, for example internet.System's 200 single, simple network configuration of explanation.The many additional configuration that comprise the system 200 of substituting electronic installation are possible.Although illustrate and described system 200 with reference to LAN, might system 200 can utilize other technology that comprises individually or simultaneously WWAN and/or WPAN.
Fig. 3 illustrates the simplified block diagram of an embodiment of mobile device 300.Mobile device 300 can comprise WWAN (for example, code division multiple access (CDMA), it is the technology of utilizing spread spectrum technique), WLAN (for example, IEEE 802.11) and/or correlation technique.Mobile device 300 can be used as voice (VoIP) phone based on Internet Protocol.VoIP comprises by the internet and/or by the telephone relation of IP network transferring voice.VoIP can by mobile device 300 utilization of being in, utilize in the time of perhaps near it is in the WAP (wireless access point) (WAP) that is connected to the broadband network that the VoIP service is provided.Under other situation, mobile device 300 can be as conventional mobile phone work when communication service is provided.
In one embodiment, the functional WWAN assembly 302 of WWAN is provided and provides the functional wlan component 304 of WLAN to be positioned at together and can communicate by letter with transceiver 308 by bus 306 or other structure or device.Should be appreciated that, the communicator except bus also can be used for the embodiment that discloses.Transceiver 308 is coupled to one or more antennas 310 to allow mobile device 300 transmit and/or receive.Wlan component 304 can produce and be provided to transceiver 308 to be used for the speech data of communication.In one embodiment, WWAN functional assembly 302 and/or WLAN functional assembly 304 can be included in the processor of mobile device 300.In another embodiment, WWAN is functional can be provided by different integrated circuits with WLAN is functional.In another embodiment, WWAN is functional can provide by comprising functional one or more integrated circuits that utilized by both with WLAN is functional.Mobile device 300 is equipped with for the connectivity of wide area (WWAN) and local (WLAN and WPAN) and selects to realize serving the abundant combination of experiencing with the user.
WLAN functional assembly 304 can comprise optional WPAN functional assembly 312.Mobile device 300 can be connected to WWAN or WLAN and WPAN or be connected to simultaneously both based on one or more standards relevant with the function of mobile device.Described standard can be stored in the memory of mobile device, and processor can be analyzed network based on the standard of storing.Describe these standards and relevant connection referring to Fig. 4 and determine, the method 400 of the type of the network that Fig. 4 explanation is used for determining that mobile device should be connected to.Although method is showed and is described as a series of actions for the purpose of the simplicity of explaination, but should be appreciated that and understand, the order that described method is not moved limits, because according to these methods, some actions can occur simultaneously by the order different from the order of this paper displaying and description and/or with other action.For instance, being understood by those skilled in the art that and understanding, can be perhaps a series of inter-related states or event with method representation, for example in state diagram.In addition, may not be to need the action of all explanations to implement following methods.
Described method starts from 402, mobile device request access network.Described network can be WWAN, WLAN and/or WPAN.When sending request, one or more access points that are associated with network can receive described request and respond with the network information of the characteristic that can comprise each network.For instance, mobile device can receive network type information, bandwidth information, cost of serving, useful application, signal strength signal intensity, the access point number identified etc.
When receiving the network information, mobile device can be analyzed a certain standard at 406 places and connect and will provide optimum for the user of mobile device about what network in order to determine greatly.For instance, described standard can comprise application or the bandwidth necessary condition that arrives the application of mobile device to be downloaded that the movement-based device utilizes, the bandwidth that mobile device can be used.In other embodiments, described standard can be the cost (for example, least cost service provider) that the user to the mobile device of WWAN and/or WLAN causes.It is in another embodiment, described that determine can be based on the application of using WWAN and/or WLAN to use.In extra embodiment, described standard can be the Optimal coverage scope that can use when being in its current location of mobile device (for example, based on for the signal strength signal intensity of WWAN and/or WLAN or the access point number of identifying).Other embodiment can be with one or more combination the in the standard above pointed out and other standard that can define by the user of mobile device or by the service provider.Described standard can be embedded in WWAN functional assembly, WLAN functional assembly, WWAN functional assembly and WLAN functional assembly or reside in another controller in mobile device.
Based on the standard of analyzing at 406 places, mobile device can be connected to separately at 408 places WWAN or WLAN and WPAN.In another embodiment, mobile device can be connected to WWAN and WLAN and WPAN simultaneously.About determining based on the standard of analyzing and the possible Best link that satisfies described one or more standards of still connecting simultaneously separately.
Interworking between WWAN and WLAN (and WPAN) can relate to according to position or other heterogeneous network topology the database that a plurality of wireless networking providers, a plurality of service provider and available connectivities are selected.For instance, along with Internet Service Provider or private entity for WLAN and/or the new access point of the functional interpolation of WPAN (for example, the access point that is provided by private company etc.), WWAN service provider can keep according to the position latest data storehouse of available networking and service.In addition, in certain embodiments, WWAN can be not to extend its connectivity by the WLAN of service provider's foundation and/or the existence of WPAN multi-hop mesh network by utilization.In multi-hop mesh networks, the minor node that serves as simple router can be installed.Each node then transmits the low-power signal that can arrive near other node.Near these, node transmits near another node being in.This process can repeat until data arrive its final destination.
In mobile device, the combination of these technology realizes using a model and serving of the new type that can not be individually obtains from every kind of technology (WWAN, WLAN and/or WPAN).These application by the mutual establishment between WWAN and WLAN technology can be categorized as some zones.For instance, these technology can be categorized as location-based service, based on regularly service and/or based on the service of topology.Location-based service can comprise the position of mobile device users need to be through confirming to provide the emergency situations of this type of emergency services, yet embodiment described herein is not limited to emergency services.For instance, the user of mobile device (end user) may need location-based record keeping service.The service of these types comprises those services of keeping accounts to the user with different rates in the position of User wherein.For instance, the user may work as and has a kind of rate when it is in, and has different rates during in office (or other job site) or in internet information station or Internet bar when it.In another embodiment, can utilize positional information that the content of multimedia that can download to mobile device is provided.This content of multimedia can be decided according to the position, and it in the stadium or the shopping center, can provide different content of multimedia based on the user.
Now referring to Fig. 5, it illustrates the simplified block diagram of another embodiment of mobile device 500.In one embodiment, provide the functional WWAN assembly 502 of WWAN and provide the functional wlan component 504 of WLAN be positioned at mobile device 500 and can communicate by letter with transceiver 508 by bus 506 or other structure or device.Transceiver 508 is coupled to one or more antennas 510 to allow mobile device 500 transmit and receive.WLAN functional assembly 504 can comprise optional WPAN functional assembly 512.In addition, can provide global location service (GPS) functional assembly 514 to realize based on location and/or regularly functional.Can provide many utilizations based on location or positional information and functional application regularly.
For instance, in retail center or shopping center (indoor and/or outdoor), retail division can have the access point of being kept by identical or different service provider.When the user got around near commercial center, different access points can pick up the user simultaneously.Because may there be the overlapping of a certain degree in WLAN due to the cause of the position of retail division, so can set up by GPS assembly or other positioner user's accurate or apparent position.If the user is near music shop or video information station etc., the user can receive from the offer of retail division and buy film or music so.Offer can be recommended by the position that utilizes the user by retail division, where is positioned at because the user knows in system.Described offer also can be based on the user preference of before having been set up by the user (at mobile device inner or externally pass through service provider).The user can select to utilize described offer or refuse described offer.Should be appreciated that, if user preference is known, can prevent that so some retail division from providing unwanted service to the user.
If the user selects (for example) to download movies, the accessible WAN of user is also the film defrayment with credit card and/or predetermined method of payment (for example, stored value card) so.After confirming payment, the user can receive selected film together with the right, management and the further feature that have certain movie and be associated.Can transmit with different networks right and content.In one case, can transmit right with WWAN, and by WLAN accessing content itself.Can be according to requiring by WLAN or WWAN access active service (for example, film).For instance, can DVD be downloaded to mobile device by WLAN (due to the cause of data processing amount).Utilize which functional determining of uploading data can be by the functional WWAN assembly of WWAN being provided, the combination decision of the functional wlan component of WLAN or WWAN assembly and wlan component being provided.Describedly determine also can be made by the controller that is associated with mobile device or processor.
Fig. 6 illustrates the method 600 of the calling that the location receives from the user of the mobile device that utilizes the GPS functional assembly.Described method starts from 602, and this moment, the user of mobile device opened the calling of beginning.This calling can be that emergency telephone call (for example, 911 call out) or its can be non-emergency call.In one embodiment, when opening at 602 places when begin calling out, the dialogue-based signaling message that opens beginning agreement (SIP) can carry the positional information by the supply of GPS functional assembly.SIP can be used for opening the signaling protocol that beginning, modification and termination can comprise the oolhiu interactive user session of optional multimedia element (for example, Internet session, phone, event notice, video, instantaneous information receiving and transmitting, game on line and/or virtual reality).Positional information can be carried at 604 places (for example) voip call agency.Therefore, if emergency situations occurs, the position that has positional information and know the caller is acted on behalf of in voip call so.The voip call agency can give suitable agency with this information supply at 606 places.This is useful when the caller does not know to call out the position and/or this information can't be sent to the calling reciever.
In another embodiment, can call out beyond the overlay area of local network/WLAN of user.For instance, WLAN AP can be arranged in user house, and the user may just talk with mobile phone at this user's backyard.When the user talked, the user may get around and hover (have a mind to and/or by mistake) to the overlay area by different WLAN services.In another embodiment, the user can take mobile phone to than distant positions (for example, in friend family, in relative family, school).
In another embodiment, open the calling of beginning at 602 places.If mobile device is in the position of realizing by the broadband access of WAP (wireless access point) (WAP), mobile device utilizes this broadband access at 608 places so.The position of mobile device during the transceiver of the positional information that can obtain by the WWAN interface that can transmit use device at 610 places provides calling.Speech data by the functional generation of WLAN can be provided to the communication of transceiver to be used for sending together with positional information.The method can use hand-held set to carry out utilizing in school that promptly (or non-emergent) call out or educational environment (for example) children.The broadband access that is used for consumer positioning (children) that is provided by school and/or other mechanism can be provided hand-held set, and information is offered calling reciever (for example, police, fire department).Therefore, can position children (or other people), and not need this children's delivering position information.
Now referring to Fig. 7, the method 700 of not utilizing gps receiver or the wireless device (for example, mobile phone) of the functional GPS assembly of GPS being provided of locating is described.It is that those of simple function with WLAN for example or WPAN access terminal that single-mode accesses terminal.For instance, the mobile phone of processing VoIP does not at home utilize embedded type GPS technology usually.Yet in some situations (for example, emergency), definite position that does not have the mobile device of GPS technology may be still very important.Even when because the user is carried to diverse location (for example, in educational institution, friend family) with device device leave home when far away, still can determine the position of device.This determines can be based on the known location that is near other device the mobile device that does not utilize the GPS technology.Identical access point and/or a plurality of access point in the described a certain geographic area that can comprise the access point that is utilized by the mobile phone that does not have the GPS technology in the neighbourhood.
Location positioning starts from 702 places, and the user who does not have the mobile device of GPS technology this moment opens begins to call out.Mobile device contact access point is to call out.Access point can have list or simultaneously from dual mode device (for example, utilizing the functional device of WLAN, WPAN and/or GPS) reception information.Dual mode device can be provided to access point with its positional information or be provided to other WLAN station (user terminal) by control or administrative messag according to operator scheme (foundation structure or ad-hoc).Have from the access point of two positional informations that access terminal and to broadcast this information in infrastructure network.At 708 places, near other user terminal access point can use described information to carry out location management.At 710 places, VoIP accesses terminal and can come indicating positions information with the positional information in the SIP signaling message.At 712 places, positional information can be used for location-based service and/or is used for marketing and/or sales message is provided to mobile device.If the user is in retail shop (for example, outdoor or indoor commercial center), positional information also can be used for providing information about particular retail information to the user of mobile device so.Should be appreciated that, marketing and/or advertisement are optional (shown in dotted line), and may be not used in the embodiment that discloses.
The position that can roughly count roughly the user who is in interior of building, because the user enters building from the locality, described locality is user's nearest known coordinate.Described nearest known coordinate can latch or keep by accessing terminal, until for example the user leaves the time of building, and can utilize functional and/or other positioner of GPS to set up new position.When the user leaves building or building structure, access terminal and to obtain its current location by GPS or other positioner.In addition, may have a plurality of users to enter building, and each user's nearest known coordinate can be determined through combination to consist of for the scope of particular access point (WLAN) and/or base station (WAN).Access point (WLAN) can determine that it is with respect to base station (WAN) and/or with respect to positional information being fed back to the position of any device of access point.Therefore, although access point may not have for the device of determining himself position, provide positional information by the mobile device that accesses described access point.
Fig. 8 explanation utilizes the method 800 of the access point in WWAN, WLAN and/or WPAN network.Have the functional mobile device of WWAN and WLAN and/or WPAN and can be positioned at gps receiver on mobile device or the pilot tone signaling by WWAN receives network timing accurately from (for example).This regularly can be used for service quality (QoS) and/or handoff management.At 802 places, in the zone of focus or a plurality of access points and/or near mobile device can receive beacon from access point.After receiving beacon, at 804 places, mobile device can utilize inner GPS functional or with respect to the WWAN that obtains by the WWAN interface regularly and to adding time of advent of beacon timestamp.Beacon message can comprise the current network load at Access point identifier, access point position, WLAN AP place etc.At 806 places, adding time of advent of stamp and out of Memory can send to network management (NM) system by (for example) WWAN link by mobile device.At 808 places, the list of NM system held access point and/or the time of advent.This information can by with database or the memory maintenance of NM System Dependent connection.Keep the list of the present load at the access point that detects in the zone of WLAN/WPAN, channel that access point is just using and/or its beacon transmissions time and each AP place for the NM system (for example) of WWAN and/or WLAN.The user can utilize this information to select suitable AP and/or the network that will add.
At 810 places, the list of the access point in the zone that the NM system can be connected to mobile device sends to mobile device.The access point list can comprise the present load at respective channel and/or beacon transmissions time and access point place, and at 808 places by NM systematic collection and the out of Memory kept.
In another embodiment, mobile device (for example, accessing terminal) can the beacon time be tuned to each of access point, and measure the channel quality information that receives (for example, SNR).Mobile device can be shared information about the link-quality of current network and other network with current AP.This information can be delivered to the NM system at 808 places, and this information can be accessed by other user.In this way, can provide handoff management for WLAN/WPAN.In addition or as an alternative, this information can be broadcasted by specific signaling and/or by the information element beacon by each access point.Described information element beacon can upgrade NM system or proximity network information by near the mobile device utilization access point.
In another embodiment, can utilize positional information seamlessly to switch mobile device between WWAN and WLAN/WPAN, illustrated in the method 900 as Fig. 9.Described method starts from 902 places, wherein can be by GPS functional assembly or other localization method (location of other device in for example, triangulation, near zone ...) positional information of mobile device can be used.At 904 places, can with by WWAN can with the indication of poor signal quality send to mobile device.For instance, mobile device can be indicated specific bandwidth and/or signal strength signal intensity should can be used for carrying out specific function and/or be satisfied requirement/service quality for the particular link of described device, if and link condition does not satisfy these requirements and/or service level, can send a message to mobile device so, and/or produce message by mobile device.About system requirements (for example, bandwidth, signal strength signal intensity ...) information can be stored in the memory of mobile device, and can be based on the information that is provided by service provider and/or user, because it is relevant with one or more application of installations.The processor that is associated with mobile device can be analyzed institute's canned data and determine whether to satisfy system requirements.If meet the demands, device can be connected to current network so.If do not meet the demands, device can be searched for the network that satisfies matching requirements so.
For instance, at 906 places, WLAN is functional to be detected beacon and determines available signal strength signal intensity and/or the bandwidth in WLAN access point place.At 908 places, this information can utilize (for example) with when bandwidth and/or signal strength signal intensity is definite when good on WLAN than on WWAN switches to WLAN from WWAN by WWAN and/or WLAN functional assembly by mobile device.Described information also can be used for switching to WWAN from WLAN.Should be appreciated that, the conversion from WLAN to WWAN and/or from WWAN to WLAN is seamless, and the user of this device may be unaware of the switching of carrying out network type.
In another embodiment, at 910 places, the signal strength signal intensity of determining at 906 places and/or bandwidth can be used for and other device coupling.For instance, if mobile device allows and the connectivity of other device, mobile device can be coupled to those other devices so.In this way, the connection that provides by WLAN of mobile device utilization.(and unrestricted) for instance, mobile device can be coupled to computer to utilize WWAN and/or the WLAN that can use by computer functional.
Figure 10 illustrates another embodiment of the method 1000 of the service that utilizes positional information automatically to strengthen mobile device.For instance, can begin by WWAN video phone call on accessing terminal.By the not enough bandwidth on (for example) WWAN, it is relatively poor that video and/or graphics resolution may or become.May need to move to another location (for example, in the family, cafe, library as an alternative or in addition, the user can begin meeting in office, and in the session ...).This comprises the situation of carrying out calling out the late into the night to adapt to the caller who is in different time zone.Described calling can be during a position begins and is conversing either party or both sides be movable to diverse location.Calling can continue when the user changes the position and not interrupt, and mobile device can seamlessly be verified when it moves through diverse access point and/or network.
When in the near zone that moves to access point (for example, the WWAN access point) at 1002 place's mobile devices, the positional information that is provided by GPS assembly or other positioner of mobile device can send to network management (NM) system.At 1004 places, the searching access point that accesses terminal can be pointed out by the NM system, and provide about the WLANAP that exists in described zone information, its channel of operation and beacon regularly and out of Memory.At 1006 places, but the access point searching and be lockable to beacon of accessing terminal then, its can be the beacon that provided by the NM system regularly.At 1008 places, can carry out handover and will install from WWAN with (for example) and switch to WLAN and/or switch to WWAN from WLAN.Because WLAN is typically connected to broadband network, so can significantly improve call quality if call transfer is redirected to WLAN.Can greatly improve the resolution of video and figure, and mobile device (for example, accessing terminal) can be attached to computer display to utilize high-resolution video to call out.This makes the service of enhancing become possibility, the performance in the performance that for example strengthens or the zone that before can not realize accessing.
As an alternative or in addition, in IEEE 802.11n wlan standard, time-based scheduling can occur.For instance, access point can be declared for to accessing terminal transmission package and/or receive the scheduling of bag from accessing terminal.Access terminal and to receive bag and then can send bag when the time that sends bag occurs in the scheduled time.These scheduling can be transmitted by the WWAN signaling link and be coordinated by the NM system.The NM system can be assigned to different access points together with suitable schedule information with different accessing terminal.
In another embodiment, some application may have harsh shake needs, and may need to receive regularly from network.For instance, in VoIP, shake is to change the time between each bag arrives, and can be caused by network congestion, timing wander and/or route change.Can be for the available accurate timing in applications exploiting mobile device place with shake needs.Can drive access point and mobile device according to network clocking.If access point does not have clock accurately, mobile device can be with timing (for example) by providing the functional GPS assembly of GPS to be provided to access point so.Access point can make this that receive from mobile device regularly can be by non-double mode and/or do not have a use that accesses terminal of timing function.
In another embodiment, can utilize WWAN and WLAN technology to construct self-configuring ad-hoc network.The ad-hoc network can operate utilizing under the infrastructure mode of access point, can be perhaps (for example only to comprise the station, or utilize the network of infrastructure mode (access point) and ad-hoc mode mobile device) but do not have the wireless network of access point.The ad-hoc network also can be described as independent basic service set (TBSS) network.
The ad-hoc network can have different qualities surely according to applicable cases.For instance, in some emergency (for example, disaster), different institutions (for example, fire-fighting, police, safety ...) may utilize different frequency in order to can keep communication with minimum interruption.Therefore, these mechanisms may not effectively respond, and maybe may be difficult to communicate with one another.Double mode accessing terminal can provide low-cost business system, and it can solve the needs of a plurality of mechanisms during urgent (with daily) situation.
Now referring to Figure 11, the method 1100 that the ad-hoc network is provided is described under the situation that there is no available access point.This has the double mode interior of building that accesses terminal emergency worker's (for example) may be useful.Described method starts from 1102 places, and the terminal that wherein is positioned at building or other inclusion region is under the WLAN pattern.When opening the beginning in end during message, terminal is accessing terminal in its near zone with its all information relays that have.At 1104 places, each terminal that receives information with (from the terminal use and from other terminal) information relay of having to its terminal near zone separately.At 1106 places, this information relay between terminal forms the IBSS network.At 1108 places, described information finally advances to one also can have accessing terminal of WWAN connection.Therefore, can be access terminal form in fast-changing urgent environment simple embodiment with broadcast its from the terminal use with and near zone other information that accesses terminal and receive.Although this can produce the non-optimum utilization of bandwidth, it also provides enough redundancies, and communication goes out building and received by suitable recipient thereby allow the most at last.
In alternate embodiment, more complicated embodiment can use the agreement of ospf (OSPF) type to be used for the route structure, as 1110 place indications.OSPF is the IGRP of developing for IP network at first.Described agreement can be used or link-state algorithm preferential with the shortest part that routing iinformation is sent to the node in network based on router.Can calculate the shortest path that arrives each node based on the landform that comprises node.Yet, it should be noted that these agreements may spend some times and assemble, and may be unsuitable for topology and continue the environment that changes.
Figure 12 explanation can utilize the exemplary self-configuring ad-hoc network 1200 of WLAN and/or WWAN technical construction.For instance, metropolitan areas can be by for having high bandwidth but do not require the WLAN node cluster service of the application of high mobility.In general, will pass back to the proposal that WAN is a costliness from the business of each the LAN node on optical fiber link, therefore, self-configuring ad-hoc network can provide more cheap alternative method.
As described, mobile device 1202 can wireless mode be trooped with WLAN node 1204,1206,1208 and is communicated by letter. Several nodes 1204,1206 may be connected to optical fiber upstream device 1210, and other node 1208 is free of attachment to optical fiber upstream device 1210.Should be appreciated that, although show an equipment 1210, network can comprise an above equipment.Can utilize WLAN node 1204,1206,1208 that business is relayed to from mobile device 1202 and/or source node (for example, node 1208) node (for example, node 1204 and 1206) that fibre optic transmission equipment connects.
One or more nodes can be to be configured to the hot node that the while operates on a plurality of WLAN channels, and for example node 1208.One in exploitable channel 1212 is picked up business from the station that is associated with node.Can utilize another (or more than one) channel 1214 to carry out relay function.Perhaps, individual channel 1216 can be associated with hot node 1204, and can utilize individual channel 1216 to pick up business and carry out relay function.
Should and communicate by letter to realize configuration network topology by the control between WLAN node 1204,1206,1208, coordination, with channel allocation to different nodes and/or make routing decision.Functional in order to realize this, one or more WLAN nodes can have wherein the WWAN function of being built into of node 1206 places explanations.Bi-functional realizes can be used for controlling the outband channel of purpose.
Network management (NM) system 1218 can be associated to create initial landform with ad-hoc network 1200.The NM system also can determine to use which channel in 1212,1214,1216.Another function of NM system can be the route of determining between node 1204,1206,1208.
(and unrestricted) for instance can provide (perhaps hand-held set can obtain) first access point being in its peak value or just using the most information of its resource sometime and with which frequency to hand-held set by WAN.The diverse access point that is closely adjacent to the first access point can arrive its peak value at different time and/or with different frequency.Utilize this information, channel or frequency that hand-held set needn't continuous tuning utilizes to the second access point are because it can be supplied with about both information of the first and second access points.In this way, when tuning and listen to the beacon of arbitrary access point hand-held set known.It also can utilize position and timing information to determine whether it is movable to diverse access point and/or frequency.
Now referring to Figure 13, illustrate and utilize WLAN and/or WWAN technology to construct method 1300 with the similar self-configuring ad-hoc network of showing referring to Figure 12 and describing.Described method starts from 1302 places, and wherein each node utilizes the WWAN channel to indicate its gps coordinate, and described gps coordinate can be sent to the NM system.At 1304 places, learn that the NM system of the position of each node can create initial topology.Described topology through design to realize enriching connectivity and different route from described node to the node that is connected to WAN by optical fiber between node.At 1306 places, the NM system also can determine channel to be used and route.At 1308 places, the information relevant with each node can be stated from WWAN down.In case the activation hotspot just can be collected other measured value at 1310 places.At 1312 places, the signal strength signal intensity that receives can be sent to the NM system, described NM system can utilize initial topology and route to estimate the actual field condition.In addition, access point can utilize the timing information that is produced by WWAN to make itself synchronous.
Above-described method and system is the catenet that centralized approach and can be used for has the focus of strong qos requirement.Can make the maximum capacity of network, make simultaneously minimum interference.
Figure 14 illustrates that adjacency side's list on initialization WWAN control channel is with another embodiment of the synchronous method 1400 that helps to access terminal.Described method can be used in the self-configuring based on wireless mesh network.Described method starts from 1402 places, at this moment the WLAN node initializing.To node initializing similar time substantially, its adjacency side's list on 1404 places exchange WWAN control channel.These can comprise about the access point in the peripheral region and/or just utilize the information of the mobile device of those access points in abutting connection with square list.For instance, the list of adjacency side can comprise the timing signal that is transmitted in response to the communication on WWAN by mobile device.For example can utilizing, the agreement of ospf (OSPF) exchanges the list of adjacency side and creates shortest path with distributed way.1404 places regularly the exchange of list can comprise transmit by WLAN and based on the second timing signal in response to the timing signal of the transmission of the communication on WWAN.At 1406 places, mobile device or access terminal can utilize the timing information that is produced by WWAN to carry out that self is synchronous, and other accesses terminal and communicates by letter by WLAN and one or more based on second timing signal to be used for.This can be directly completes by the degree of approach known (for example, according to the list of adjacency side or directly by himself WWAN function) nearest WWAN or WLAN access point.Perhaps, it can receive this information from having functional the accessing terminal of combination WWAN and WLAN.For instance, the transmission of timing signal can comprise timing signal is accessed terminal from first and sends to and first one or more other terminals that access terminal and synchronize.
Figure 15 illustrates the peer-to-peer communications 1500 in wlan network.In some feelings situation, access terminal individually and 1502 and 1504 can use one or more WLAN access points 1506,1508 to communicate with one another.In order to improve this communication, can be used to make from WWAN access point 1508,1510 timing information the clock synchronous that accesses terminal.To understand, some access points can only comprise WLAN functional 1506 or WWAN functional 1510, or WLAN functional with functional both combination 1508 of WWAN.
If device has WWAN functional 1512,1514 or learns the WWAN access point, can provide timing information by the WLAN access point so.Perhaps, can utilize any or two functional this information is provided to of WWAN on accessing terminal to access terminal, described accessing terminal then can use described information to communicate by letter on WLAN.
The method 1600 that Figure 16 explanation is registered and/or verified in independent basic service set (IBSS) network.The IBSS network is the wireless network based on IEEE 802.11 with maincenter foundation structure.The IBSS network is comprised of at least two radio stations.The IBSS network can be described as the ad-hoc network, because it can utilize few planning or not plan and Fast Construction.Can utilize to reside in to access terminal or the functional registration that accesses terminal of WWAN and/or the checking at WLAN access point place, with communication or the service access that is used for being undertaken by the WLAN access point.
Described method starts from 1602 places, but the functional indicating device identifying information of WWAN at the place that wherein accesses terminal or registration message (device that for example, resides on subscriber identity module is identified).The first registration message can comprise encryption key.Can be by coming demo plant identifying information or registration message from the first WWAN that accesses terminal.At 1604 places, can and be provided to WLAN access point or other service with the second registration message or device identification transmission.The second registration message can be based on the first registration message.The message that arrives WLAN can be transmitted by passback or by the aerial token or the air interface that obtain via the described WWAN that accesses terminal.This also allows to utilize can be by the device certain encryption keys of WWAN system or wlan system checking.
Described registration/verification method the user who accesses terminal with have WLAN functional but lack to arrive the broadband of network (for example, internet) or fully the information station that connects of passback to carry out in the situation of radio communication be useful.In this case, can provide checking or charging information (for example, music, video or out of Memory) for sales situation by WWAN.For instance, can exchange in WWAN is the specific user's identification of device or user (for example, password or encryption key).This makes and accesses terminal and can obtain token or other identifying code at 1606 places.At 1608 places, described token or other identifying code can be wirelessly transmitted to information station, thus the accessing video that allows to access terminal, song or other content of multimedia.In this way, to the access of permission by WLAN that access terminal.Should be appreciated that, by WWAN, the second registration message is transferred to access terminal after, the 3rd registration message based on the second registration message can be sent to the WLAN access point from accessing terminal.This 3rd registration message can send by the various media that comprise air interface.
Also but the position of movement-based device provides this content of multimedia.For instance, in commercial center, can provide content of multimedia from one or more retail shops or other retail division based on customer location and user preference.User preference can be before to transmit and be stored in preference in the memory of mobile device by the user.But the information of processor analyzing stored in memory that is associated with mobile device, and determine to accept content of multimedia and send it to user that the user still ignores and do not send to device.In another embodiment, user preference can be sent to the service provider who keeps described information.For instance, if the user is near the movement value shop and illustrated before that this user need to be about any information of motion and/or movement value (not for example, current sale or price reduction, activity ...), can prevent so will be by the communication of the described certain shops broadcasting mobile device to the user.Should be appreciated that, content of multimedia is optional, and can be in the situation that the embodiment that does not use content of multimedia utilization to disclose.
According to another embodiment, can be by the WWAN ad-hocWLAN network that is coupled.For instance, if find one or more IBSS networks, can it be coupled by the passback that is provided by WWAN so.This one or more WLAN nodes in given IBSS/stand are found or may be realized during by the access point discovery of WWAN.This allows maybe may to have WWAN to the access of improved service and return to connect WLAN station from different I BSS by having larger bandwidth.Described different I BSS can provide and may relative to each other cover for the radio in discrete zones of different.
It is the ability of multicast and/or broadcasting in the IBSS network according to another embodiment.Can return by WWAN broadcast and multicast message is provided.This can help position-based information that broadcast or multicast message or data are provided.In addition, this can provide based on by WWAN can with timing information come the ability (for example, can be used to timing signal from adjacent WWAN access point for the timing purpose) of the broadcast or multicast message of transmitting synchronous.
Figure 17 illustrates exemplary ad-hoc mesh network 1700.Network 1700 is illustrated as the ad-hoc network that utilizes four access points or base station " A " 1702, " B " 1704, " C " 1706 and " D " 1708.Ad-hoc mesh network 1700 can use the access point of any number, and only selects for purposes of illustration four access points.Should be appreciated that, ad-hoc mesh network 1700 can be to be in network under the infrastructure mode (not shown) that utilizes access point, not utilize the peer-to-peer network of access point, or utilizes the network of infrastructure mode (access point) and ad-hoc mode.
The topology explanation access point A1702 of network 1700 is connected to access point B1704, access point C1706 and/or access point D1708 by radio communication.Should be for the decision-making of access point foundation about active link.This decision-making can be carried out by the wide area control channel, and in described wide area control channel, each access point sends to central network with its gps coordinate (or other positioning means) and manages (NM) system 1710.Has the communication link that the NM system 1710 of all access points 1702,1704,1706 in network 1700,1708 position determines between network topologies and access point 1702,1704,1706,1708.For instance, NM network 1710 may be determined: in described topology, access point A1702 should communicate by letter with access point B1704, and access point B1704 should communicate by letter with access point C1706, and access point C1706 should communicate by letter with access point D1708.NM system 1710 also can determine should use which channel according to each access point of frequency management.For instance, NM system 1710 can determine that access point A1702 should use channel A or 20MHz channel, and access point B1704 should use different channels, such as different 20MHz channel etc.
In the ad-hoc network, can delete at any time or add access point.Yet it is constant in smooth communications to be provided that the communication between access point should keep.When major event (disaster etc.) occurs, may need to change whole topology.Therefore, control channel should be configured to provide suitable connectivity and not produce excessive interference.It is functional that each access point may be configured with WLAN, and it is each access point configuration one grant channel automatically, thereby allows any one by described network management channel communication.This grant channel has alleviated the problem that is associated with the availability that lacks control channel.Channel is sent to NM system 1710 with its coordinate.This can set up by the bandwidth of any grade, and arrowband WAN channel can be enough to be used in this purpose.In case receiving position information is with regard to reconfigurable ad-hoc network or set up new ad-hoc network.
In the network that just operates in the combination of ad-hoc mode (without access point) or infrastructure mode and ad-hoc mode, utilize hand-held set to set up the part of network or network.The configuration of network in this case, may not utilize the NM system, because can change fast.In this case, each hand-held set is broadcasted its information, and the hand-held set of the information of reception will be information dissemination to other hand-held set.The transmission of this information or relay will continue until information arrives its destination.In this reciprocity ad-hoc network, the first hand-held set A may utilize WLAN to communicate by letter to hand-held set B.Hand-held set B may utilize WWAN to communicate by letter with hand-held set C.Hand-held set can utilize mixed mode or arrange to communicate by letter, and is functional as long as hand-held set has WWAN, WWAN, WPAN, a Wi-Fi etc.
Now referring to Figure 18, the one or more systems 1800 that help the coordinating communication between a plurality of communication protocols in wireless communications environment according to the embodiment that discloses are described.System 1800 can reside in access point and/or in user's set.System 1800 comprises receiver 1802, and it can be from (for example) receiver antenna receiving signal.Receiver 1802 can be carried out typical action, such as filtering, amplification, frequency reducing conversion etc. to the signal that receives thereon.Receiver 1802 also can make signal digitalized to obtain sample through what regulate.Demodulator 1804 can obtain the symbol that receives of each symbol period, and the symbol that receives is provided to processor 1806.
User's set 1800 can comprise memory 1808 in addition, and it operationally is coupled to processor 1806 and storage about information and any other suitable information of coordinating communication.Memory 1808 can be stored the agreement that is associated with coordinating communication in addition.To understand, data storage device described herein (for example, memory) assembly can be volatile memory or nonvolatile memory, perhaps can comprise volatibility and nonvolatile memory.The unrestriced mode with explanation, nonvolatile memory can comprise read-only memory (ROM), programming ROM (PROM), electrically programmable ROM (EPROM), electrically-erasable ROM (EEROM) (EEPROM) or flash memory.Volatile memory can comprise random access memory (RAM), and it serves as external cache.The unrestriced mode with explanation, RAM can many form utilizations, for example synchronous random access memory (SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), Double Data Rate SDRAM (DDR SDRAM), enhancing SDRAM (ESDRAM), Synchlink DRAM (SLDRAM) and direct Rambus RAM (DRRAM).The memory 1808 of native system and/or method wishes to be including but not limited to the memory of these and any other suitable type.User's set 1800 further comprises Symbol modulator 1810 and the reflector 1812 of transmission through modulation signal.
Figure 19 helps the explanation of the system 1900 of coordinating communication agreement according to various aspects.System 1900 comprises base station or access point 1902.As described, base station 1902 receives signal by reception antenna 1906 from one or more user's sets 1904, and is transferred to one or more user's sets 1904 by transmit antenna 1908.
Figure 20 illustrates example wireless communication system 2000.Wireless communication system 2000 is described a base station and a terminal for the sake of brevity.Yet, should be appreciated that, system 2000 can comprise an above base station or access point and/or above terminal or user's set, and wherein extra base station and/or terminal can be similar in fact or different from exemplary base station described below and terminal.In addition, should be appreciated that, base station and/or terminal can use system described herein and or method help to carry out therebetween radio communication.
Now referring to Figure 20, on down link, at access point 1905 places, 2010 receptions of transmission (TX) data processor, format, coding, alternation sum modulation (or sign map) business datum also provide modulation symbol (" data symbol ").Symbol modulator 2015 receives and deal with data symbol and frequency pilot sign and symbol stream is provided.Symbol modulator 2015 multiplexed datas and frequency pilot sign also obtain one group of N transmission symbol.Each transmission symbol can be data symbol, frequency pilot sign or signal values of zero.Frequency pilot sign can be sent out continuously at each symbol period.Frequency pilot sign can be through frequency division multiplex (FDM), Orthodoxy Frequency Division Multiplex (OFDM), time division multiplexing (TDM), frequency division multiplex (FDM) or code division multiplex (CDM).
Transmitter unit (TMTR) 2020 receiving symbols flow and are converted into one or more analog signals, and further regulate the down link signal that (for example, amplification, filtering and up-conversion) analog signal is suitable for transmitting with generation on wireless channel.Down link signal then is transferred to terminal by antenna 2025.At terminal 2030 places, antenna 2035 receiving downlink signals also are provided to acceptor unit (RCVR) 2040 with the signal that receives.The signal that acceptor unit 2040 adjustings (for example, filtering, amplification and down-conversion) receive also makes signal digitalized to obtain sample through what regulate.Symbol demodulator 2045 obtains N institute's receiving symbol and the frequency pilot sign that receives is provided to processor 2050 to be used for channel estimating.Symbol demodulator 2045 further receives from processor 2050 the frequency response estimated value that is used for down link, to the data symbol executing data demodulation that receives to obtain data symbol estimated value (it is the estimated value of the data symbol that transmitted), and the data symbol estimated value is provided to RX data processor 2055,2055 pairs of data sign estimation values of described RX data processor are carried out demodulation (for example, symbol de-maps), release of an interleave and the decoding business datum to recover to be transmitted.The processing that symbol demodulator 2045 and RX data processor 2055 carry out is complementary with the processing that access point 2005 place's Symbol modulator 2015 and TX data processor 1910 carry out respectively.
On up link, TX data processor 2060 is processed business datum and data symbol is provided.Symbol modulator 2065 receives and multiplexed data symbol and frequency pilot sign, carries out modulation, and symbol stream is provided.Transmitter unit 2070 then receives and process symbol flows to produce uplink signal, and described uplink signal is transferred to access point 2005 by antenna 2035.
At access point 2005 places, come the uplink signal of self terminal 2030 receive and process to obtain sample by acceptor unit 2075 by antenna 2025.Symbol demodulator 2080 then process sample and be provided for up link the frequency pilot sign that receives and data symbol estimated value.RX data processor 2085 deal with data sign estimation values are to recover the business datum by terminal 2030 transmission.Processor 2090 is now carried out channel estimating with terminal for each that just transmitting on up link.
For multi-address system (for example, FDMA, OFDMA, CDMA, TDMA etc.), a plurality of terminals can be transmitted on up link simultaneously.For this type systematic, can share pilot subbands between different terminals.Cross over whole operational frequency bands (may except band edge) and can use channel estimation technique in the situation that be used for the pilot subbands of each terminal.This pilot subband structure will be used for obtaining the frequency diversity of each terminal ideally.Technology described herein can be implemented by the whole bag of tricks.For instance, these technology may be implemented in hardware, software or its combination.For the hardware implementation scheme, the processing unit that is used for channel estimating may be implemented in one or more application-specific integrated circuit (ASIC)s (ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), field programmable gate array (FPGA), processor, controller, microcontroller, microprocessor, through design with other electronic unit or its combination of carrying out function described herein in.For software, embodiment can realize by the module (for example, process, function etc.) of carrying out function described herein.Software code can be stored in memory cell and by processor 2090 and 2050 and carry out.
Should be appreciated that, embodiment described herein can be implemented by hardware, software, firmware, middleware, microcode or its any combination.When system and/or method were implemented in software, firmware, middleware or microcode, program code or code segment, it can be stored in machine-readable medium (for example, memory module).Code segment can represent process, function, subprogram, program, routine, subroutine, module, software kit, kind, or any combination of instruction, data structure or program statement.Code segment can be coupled to another code segment or hardware circuit by transmission and/or reception information, data, independent variable, parameter or memory content.Can any suitable method such as Memory Sharing, message transmission, token transmission, Internet Transmission be transmitted with comprising, forwarding or transmission information, independent variable, parameter, data etc.
For the implement software scheme, technology described herein can be implemented with the module (for example, process, function etc.) of carrying out function described herein.Software code can be stored in memory cell and by processor and carry out.Memory cell may be implemented in processor or processor outside, in a rear situation its can be by technique in known the whole bag of tricks be coupled to by correspondence processor.
The content of above having described comprises the example of one or more embodiment.Certainly, can not describe for the purpose of describing above-mentioned embodiment the every kind of combination that envisions of assembly or method, but one of ordinary skill in the art can recognize, the many other combination and permutation of various embodiment are possible.Therefore, described embodiment wishes to comprise all these type of changes, the modifications and variations in the spirit and scope that drop on appended claims.In addition, " comprise " with regard to term and be used for embodiment or claims, described term wishes " to comprise " that with term similarly mode as comprising (inclusive) of boundary, is interpreted into transition vocabulary in use because " comprise " in the claims.
Claims (32)
1. one kind is used for utilizing time-based information to improve the method for the communication of wireless network, and it comprises:
At the first mobile device place and from the beacon message of the first access point reception corresponding to the second access point, wherein said beacon message comprises timestamp information, and described timestamp information represents the time on described the second mobile device corresponding with described beacon arrival the second mobile device; And
Utilize the timestamp information that is associated with described beacon message to determine whether the communication of described the first mobile device is handed over to described the second access point.
2. method according to claim 1, it further comprises:
The quality that detection is associated with the system requirements of described communication is below threshold level;
Transmission difference signal quality information; And
Receive in response to the difference signal quality information of described transmission about a plurality of alternately information of access point.
3. method according to claim 2, it further comprises:
At least part of according to selecting between the described a plurality of alternately access points of being applied in of mobile device.
4. method according to claim 2, it further comprises:
Selection has described a plurality of one that replace in access points of the beacon quality level more than threshold value, and wherein said a plurality of access points comprise at least one in wireless wide area network WWAN, WLAN (wireless local area network) WLAN or Wireless Personal Network WPAN.
5. method according to claim 2, it further comprises:
By WWAN or WLAN is functional determines between WWAN and WLAN to switch to realize good bandwidth or signal strength signal intensity.
6. method according to claim 2 wherein saidly comprises separately channel or beacon transmissions time about described a plurality of alternately information of access point.
7. method according to claim 1, wherein said timestamp information provides or regularly provides with respect to WWAN by GPS is functional.
8. method according to claim 1 further comprises:
Sent the positional information of the position of defining described the first mobile device by the first mobile device;
Wherein receive beacon message and further comprise based on described positional information, obtain for the described beacon message near the WLAN access point of described the first mobile device from the WWAN access point; And
At least part ofly be confirmed whether between described WWAN and described WLAN to shift described the first mobile device based on described beacon message.
9. method according to claim 8 wherein is confirmed whether to shift between described WWAN and described WLAN and further comprises:
Determine whether the bandwidth of described WWAN or described WLAN is enough to adapt to the application of mobile device.
10. method according to claim 8, it further comprises:
If bandwidth or signal strength signal intensity than good on described WWAN, switch to described WLAN from described WWAN on described WLAN.
11. method according to claim 8, it further comprises:
If bandwidth or signal strength signal intensity than good on described WLAN, switch to described WWAN from described WLAN on described WWAN.
12. a mobile device, it comprises:
Wlan component, it is configured to communicate by letter with one or more WLAN;
The WWAN assembly, it is configured to receive from WWAN the one or more beacon messages that are associated with one or more WLAN, wherein each WLAN beacon message is provided to described WWAN by the second mobile device, and described each WLAN beacon message comprises that expression and corresponding beacon arrive the timestamp information of the time on the second corresponding mobile device of the second mobile device;
Memory, the requirement that its storage is relevant with application of installation; And
Processor, the information of its analyzing stored in described memory and part determine based on the timestamp information of corresponding WLAN beacon message whether at least one WLAN satisfies described application of installation requirement, and recommend the handover between WLAN and WWAN.
13. mobile device according to claim 12, it further is included in the coupling of computer, to utilize described WWAN assembly or described wlan component by described computer.
14. mobile device according to claim 12, the timestamp information of at least one beacon message that wherein is associated with described one or more WLAN is used for determining the handoff management scheduling by described processor.
15. mobile device according to claim 14, wherein said handoff management is dispatched to small part based on channel quality information.
16. mobile device according to claim 14, wherein said handoff management scheduling part based on the respective beacon time place be tuned to each of described one or more WLAN, and measure from the channel quality information that receives of each reception of described one or more WLAN.
17. an equipment that is used for strengthening by time-based information network service, it comprises:
Receiving system, it is used for stabbing from WWAN access point time of reception, the representative of described timestamp with corresponding to the time on the corresponding described mobile device of one or more WLAN beacons arrival mobile devices of one or more WLAN access points, wherein said equipment is different from described mobile device; And
Determination device, it is used at least part of described timestamp based on being associated with the described beacon of described WLAN access point and determines whether described equipment is handed over to the WLAN access point from described WWAN access point.
18. equipment according to claim 17, it further comprises:
Be used for the management handover and dispatch to adapt to the device of the application of described equipment.
19. a method that is used at the wireless network supervisory communications comprises:
Existence at mobile device place's detection WWAN access point and WLAN access point;
Receive beacon from least one WLAN access point;
Determine the timestamp information corresponding with described beacon, wherein said timestamp information represents the time on the described mobile device corresponding with the described mobile device of described beacon arrival;
Described timestamp information is transferred to the WWAN access point to send to other mobile devices, is confirmed whether to shift between WWAN and WLAN with at least part of described timestamp information based on respective beacon.
20. method according to claim 19 further comprises: determine described timestamp information with the GPS assembly on described mobile device.
21. method as claimed in claim 19, wherein said mobile device is determined described timestamp information with the WWAN assembly, and described WWAN assembly can operate to receive network signal, and its indication is with respect to the time of advent of the described beacon of network timing.
22. an equipment that is used at the wireless network supervisory communications, it comprises:
Be used for the device in the existence of mobile device place's detection WWAN access point and WLAN access point;
Be used for receiving from least one WLAN access point the device of beacon;
Be used for determining the device of the timestamp information corresponding with described beacon, wherein said timestamp information represents the time on the described mobile device corresponding with the described mobile device of described beacon arrival;
Be used for described timestamp information is transferred to the WWAN access point to send to other mobile devices, be confirmed whether the device that shifts with at least part of described timestamp information based on respective beacon between WWAN and WLAN.
23. equipment as claimed in claim 22 further comprises: the device that is used for determining with the GPS assembly on described mobile device described timestamp information.
24. equipment as claimed in claim 22, wherein, describedly determine described timestamp information for the device of determining the timestamp information corresponding with described beacon with the WWAN assembly, described WWAN assembly can operate to receive network signal, and its indication is with respect to the described time of advent of the described beacon of network timing.
25. a method that is used for carrying out handover comprises:
Receive beacons and corresponding to each positional information of described one or more access points from one or more access points;
Arrive the time of advent of mobile device based on described beacon, utilize the functional timing of global position system GPS that timestamp is associated with beacon message;
Functional by WWAN, described timestamp and other communications are arrived network management system;
Based on the described positional information corresponding to described beacon message, receive local access point and with respect to the list of respective beacon time of advent of the functional described timing of described GPS from described network management system on described mobile device; And
Determine handoff management scheduling between WWAN, WLAN or WPAN based on described list.
26. method as claimed in claim 25 further comprises:
When having dropped to threshold level, the beacon quality sends poor beacon quality information when following;
The list that wherein receives described local access point is to sending the response of described poor beacon quality information; And
Switch to realize being in or higher than the beacon quality of described threshold level between WWAN, WLAN or WPAN.
27. method as claimed in claim 25 further comprises:
By WWAN or WLAN is functional determines between WWAN network and wlan network to switch to realize good bandwidth or signal strength signal intensity.
28. method as claimed in claim 25 further comprises:
Obtain the requirement relevant with application of installation; And
At least part of based on determining described respective beacon time of advent that at least one access point in described list satisfies described application of installation requirement, and recommend to described at least one access point handover.
29. an equipment that is used for carrying out handover comprises:
Be used for receiving beacons and corresponding to each the device of positional information of described one or more access points from one or more access points;
Be used for arriving based on described beacon the time of advent of mobile device, the device that utilizes the functional timing of global position system GPS that timestamp is associated with beacon message;
Be used for described timestamp and the device of other communications to network management system;
Be used for based on the described positional information corresponding to described beacon message, receive local access point and with respect to the device of the list of respective beacon time of advent of the functional described timing of described GPS from described network management system on described mobile device; And
Be used for determining based on described list the device of the handoff management scheduling between WWAN, WLAN or WPAN.
30. equipment as claimed in claim 29 further comprises:
Be used for having dropped to threshold level when following when the beacon quality, transmission differs from the device of beacon quality information;
The list that wherein receives described local access point is to sending the response of described poor beacon quality information; And
Be used for switching to realize being in or higher than the device of the beacon quality of described threshold level between WWAN, WLAN or WPAN.
31. equipment as claimed in claim 29 comprises further that or WLAN functional by WWAN is functional and determines between WWAN network and wlan network to switch to realize the device of good bandwidth or signal strength signal intensity.
32. equipment as claimed in claim 29 further comprises:
Be used for obtaining the device of the requirement relevant with application of installation; And
Be used at least part of at least one access point based on definite described list time of advent of described respective beacon and satisfy described application of installation requirement, and recommend the device to described at least one access point handover.
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| US11/240,045 US8311543B2 (en) | 2005-07-07 | 2005-09-30 | Methods and devices for interworking of wireless wide area networks and wireless local area networks or wireless personal area networks |
| US11/240,045 | 2005-09-30 | ||
| PCT/US2006/026308 WO2007008573A2 (en) | 2005-07-07 | 2006-07-06 | Methods and devices for interworking of wireless wide area networks and wireless local area networks or wireless personal area networks |
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| CN200680031780.XA Expired - Fee Related CN101253738B (en) | 2005-07-07 | 2006-07-06 | Methods and devices for interworking of wireless wide area networks and wireless local area networks or wireless personal area networks |
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| CN200680031780.XA Expired - Fee Related CN101253738B (en) | 2005-07-07 | 2006-07-06 | Methods and devices for interworking of wireless wide area networks and wireless local area networks or wireless personal area networks |
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| CN101253738A (en) | 2008-08-27 |
| CN101253738B (en) | 2014-06-11 |
| UA92356C2 (en) | 2010-10-25 |
| UA91866C2 (en) | 2010-09-10 |
| CN101253739A (en) | 2008-08-27 |
| CN101253734A (en) | 2008-08-27 |
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