CN100438692C - Method for reducing calling establishment time delay for mobile communication system - Google Patents
Method for reducing calling establishment time delay for mobile communication system Download PDFInfo
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- CN100438692C CN100438692C CNB2005100299423A CN200510029942A CN100438692C CN 100438692 C CN100438692 C CN 100438692C CN B2005100299423 A CNB2005100299423 A CN B2005100299423A CN 200510029942 A CN200510029942 A CN 200510029942A CN 100438692 C CN100438692 C CN 100438692C
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Abstract
The invention belongs to reducing call setup time-delay method in the mobile communication system. Now the Call establishment needs a longer time, which affects the quality of the subsequent delay-sensitive business in a large extent. One of the important reasons for having a longer time to establish is that the length of information packet is too long to transmit through the air interface signaling. The invention is to establish the actual situation of quasi-static parameters in the information using the wireless loading and memory the quasi-static parameters of this part in the mobile platform to reduce the size of establishing information of wireless loading transmitted in the process of call establishing, so the establishing time of wireless loading is shorten to short the time of the whole call establishment.
Description
Technical field
The present invention relates to the call-establishing method in the mobile communication, relate in particular to the call-establishing method in the 3-G (Generation Three mobile communication system), to reduce call set-up time effectively.
Background technology
In mobile communication, send call request until connect from a travelling carriage with the called party, need a certain amount of information of exchange between travelling carriage, base station, radio network controller and the core net etc., so that set up communication link between caller platform and called station, this foundation needs certain duration.From communication quality, this duration is short more, and quality is high more.Certainly for common communication service, the reduction of this quality can also be tolerated sometimes, yet for some business to this delay sensitive that continues, for example interactive entertainment or mobile push-to-talk (PoC, Push to talk Over Cellular) etc. professional, in the present mobile communication system, the calling establishment time delay of 3-G (Generation Three mobile communication system) seem long (generally reach 6-10 second) has especially influenced the quality of this class business to a great extent.
Fig. 1 shows the schematic diagram of the call set up signaling flow process of calling terminal in the present 3-G (Generation Three mobile communication system); Fig. 2 shows the call set up signaling flow process of called end in the present 3-G (Generation Three mobile communication system).As shown in Figure 1, after calling terminal sends call request, between mobile station UE, base station node B, radio network controller (RNC) and core net CN, need to carry out a series of action, to finish call setup as calling terminal.Present call setup mainly comprises three processes: process 1: Radio Resource control (RRC) connects sets up; Process 2: Non-Access Stratum (NAS) signaling connects to be set up and Non-Access Stratum (NAS) signalling interactive process; And process 3: RAB (RAB) is set up process.
The purpose that RRC connects the process of setting up is to set up special-purpose signaling interface channel between travelling carriage and land radio access web, to transmit interactive signaling by air interface between mobile station UE and the land radio access web and between mobile station UE and the core net CN.
The purpose that the NAS signaling connects the process of setting up is to set up the passage of Signalling exchange, processes such as it mainly comprises, and service request (Service Request), the foundation of IU interface (interface between radio network controller (RNC) and the core net CN) SCCP (SCCP), authentication and encryption, safe mode (Security Mode) are provided with, TMSI (Temporary Mobile Subscriber Identity) heavily distributes, PDP (packet data protocol) activation request between mobile station UE and core net CN.
After NAS signaling connection foundation was finished, beginning RAB set up process.In this process, core net CN sends RAB request for allocation (RAB Assignment Request) message and gives radio network controller (RNC), radio network controller (RNC) carries out the mapping of RAB (RAB) to RB (radio bearer) after receiving this message, then base station node B is carried out Radio Link (RL, Radio Link) reshuffles, Access Link Control Application Part (ALCAP, Access Link Control Application Part) sets up, Frame Protocol FP (FrameProtocol) waits operation synchronously, radio network controller (RNC) sends radio bearer and sets up (RB Setup) message to mobile station UE then, mobile station UE is received the Radio Link Controller RLC (RadioLink Controller) of configuration local terminal after this message, entities such as media access controller MAC (Media Access Controller) and physical layer, mobile station UE sends RB foundation and finishes (RB Setup Complete) message to radio network controller (RNC) then, radio network controller (RNC) is configuring the RLC of local terminal, send RAB assignment response (RAB Assignment Response) message informing core net CN after the MAC, RAB sets up successfully, transmission was accepted PDP activation (Activate PDP ContextAccept) message to mobile station UE after core net CN received this message, the notice mobile station UE can begin the transmission of data, so far, RAB sets up successfully.
The call set up signaling flow process of called end can be referring to shown in Figure 2, the RRC of called end connects the process of setting up, process is set up in the connection of NAS signaling and RAB sets up process and the calling terminal corresponding process is basic identical, and it had increased a paging before above-mentioned three processes.
As can be seen, the signaling procedure that call establishment relates to is more from top description, and each Signalling exchange all needs the regular hour to transmit and handle, thereby call set-up time is longer.
Summary of the invention
The objective of the invention is to the call-establishing method in the existing mobile communication system is improved, shorten the time of call setup, to improve the mobile communication quality.
The applicant is by above-mentioned process is analyzed discovery, and in said process, the length that radio bearer (RB) is set up message is bigger, and generally about 100 bytes, therefore the time of interfaces need transmission aloft is longer.Find that simultaneously set up in the message at radio bearer, the message content that considerable part is arranged is quasi-static parameter, that is to say, some message content can not change yet.
Based on above-mentioned discovery, the invention provides the method that reduces the calling terminal calling establishment time delay in a kind of mobile communication system, described mobile communication system comprises travelling carriage, base station, radio network controller and core net, this method comprises: the Radio Resource control connection is set up process, process is set up in the connection of Non-Access Stratum signaling and RAB is set up process, comprised also that before said process a radio bearer sets up the process that prestores of message, the process of prestoring that described radio bearer is set up message comprises:
In travelling carriage, reserve a memory headroom;
Quasistatic message content in the memory headroom of described reservation in the radio bearer message of the various specific transactions of storage; With
Described travelling carriage is finished radio bearer and is set up prestoring of message in start process; Described RAB is set up process and is comprised:
Described core net sends the RAB allocation request message to described radio network controller;
Between described radio network controller and described base station, carry out Radio Link reconstruction and the configuration of user's face;
Described radio network controller is set up message to the radio bearer of simplifying and is sent described travelling carriage to, and the radio bearer of described simplification is set up message and comprised that dynamic radio bearer is set up message content and the index indication of the radio bearer message that prestores about travelling carriage;
Described travelling carriage is set up message according to described simplification radio bearer and with the quasistatic message that is stored in the described memory headroom local terminal entity is configured, and sends radio bearer foundation to described radio network controller then and finishes message;
After the described radio network controller configuration local terminal entity, send the RAB assignment response message to described core net;
Transmission was accepted packet data protocol (PDP) activating message to described travelling carriage after described core net was received this RAB assignment response message, finished the foundation of RAB.
The present invention also provides the method that reduces the called end calling establishment time delay in a kind of mobile communication system, described mobile communication system comprises travelling carriage, base station, radio network controller and core net, this method comprises: described core net sends paging signal process, Radio Resource control connection to described travelling carriage and sets up process, Non-Access Stratum signaling and connect and set up process and RAB is set up process, comprised also that before said process a radio bearer sets up the process that prestores of message, the process of prestoring that described radio bearer is set up message comprises:
In travelling carriage, reserve a memory headroom;
Quasistatic message content in the memory headroom of described reservation in the radio bearer message of the various specific transactions of storage; With
Described travelling carriage is finished radio bearer and is set up prestoring of message in start process;
Described RAB is set up process and is comprised:
Described core net sends the RAB allocation request message to described radio network controller;
Between described radio network controller and described base station, carry out Radio Link reconstruction and the configuration of user's face;
Described radio network controller is set up message to the radio bearer of simplifying and is sent described travelling carriage to, and the radio bearer of described simplification is set up message and comprised that dynamic radio bearer is set up message content and the index indication of the radio bearer message that prestores about travelling carriage;
Described travelling carriage is set up message according to described simplification radio bearer and with the quasistatic message that is stored in the described memory headroom local terminal entity is configured, and sends radio bearer foundation to described radio network controller then and finishes message;
After the described radio network controller configuration local terminal entity, send the RAB assignment response message to described core net;
Transmission was accepted packet data protocol (PDP) activating message to described travelling carriage after described core net was received this RAB assignment response message, finished the foundation of RAB.
In said method, described specific transactions comprises interactive entertainment business, wireless push talk business.
In said method, the local terminal entity of described travelling carriage comprises Radio Link Controller, media access controller and the physical layer of local terminal.
In said method, the local terminal entity of described radio network controller comprises the Radio Link Controller and the media access controller of local terminal.
In said method, the quasistatic message in the described radio bearer message comprises: the configuration messages of the radio bearer mapping parameters corresponding with described specific transactions, Radio Link Controller entity parameter, media access controller entity parameter and/or transmission channel.
Because the present invention is with some the constant substantially data in the radio bearer message, be stored in the travelling carriage in advance, therefore, in the process that radio bearer is set up, radio network controller does not need to send all radio bearer message to travelling carriage, reduced the byte length that sends message, thereby shortened the time of call setup, quantitatively, method provided by the invention is with respect to existing method, the transmitting time that radio bearer after the simplification is set up message be original radio bearer set up the message transmitting time about 1/4～1/3, if promptly original radio bearer transmitting time is 400 milliseconds, about 100～133 milliseconds of the radio bearer after the simplification.Therefore from whole call establishment, method provided by the invention can shorten about 0.5～1 second of calling establishment time delay than existing method.
Description of drawings
Fig. 1 is the schematic diagram of the call set up signaling flow process of calling terminal in the traditional mobile communication system;
Fig. 2 is the schematic diagram of the call set up signaling flow process of called end in the traditional mobile communication system;
Fig. 3 is the schematic diagram of the call set up signaling flow process of calling terminal in the mobile communication system of the present invention;
Fig. 4 is the schematic diagram of the call set up signaling flow process of called end in the mobile communication system of the present invention;
Embodiment
The embodiment of call establishment of the present invention is described below with reference to accompanying drawings.
As shown in Figure 3, it shows the schematic diagram of the call set up signaling flow process of calling terminal in the mobile communication system of the present invention.
Comparison diagram 1 and Fig. 3 are as can be known, set up in the process whole, first process: Radio Resource control (RRC) connects foundation, second process: Non-Access Stratum (NAS) signaling connects the process of setting up, both are identical, for saving space and giving prominence to essential characteristics of the present invention, this two process no longer is explained in detail, and we believe, those of ordinary skill in the art can be understood and realizes according to present known technology.
Improvement of the present invention is above-mentioned process three: promptly RAB (RAB) is set up process.As mentioned above, it is bigger that design of the present invention is based on the data volume of having found to set up at radio bearer message, thus taken suitable transmitting time, but in these data, have considerable part to belong to the quasistatic data.For reducing the data volume that transmits, the quasistatic data that the present invention sets up radio bearer in the message are stored in the travelling carriage in advance, so in the process that RAB is set up, just can reduce the data volume that radio bearer that control desk sends travelling carriage to is set up message.
See also Fig. 3, compare with the method for Fig. 1, in calling terminal call establishment of the present invention, increased a step, promptly radio bearer is set up the process that prestores of message.This process has comprised:
In mobile station UE, reserve a memory headroom;
Quasistatic message in the memory headroom of reserving in the radio bearer message of the various specific transactions of storage.
In a specific embodiment, these specific transactions can comprise interactive entertainment business, emergency voice calls business, mobile push-to-talk business (PoC), Basic voice call (as the speech business of 12.2kbps), basic grouped territory business (as the VoIP business), basic stream professional (professional as 32kbps/64kbps/128kbps stream) and interactive service (as the 8kbps/32kbps/64kbps/128kbps/384kbps interactive service) etc.Described quasistatic message can comprise one of configuration parameter of the RB mapping parameters corresponding with specific transactions, RLC entity parameter, MAC entity parameter, transmission channel or their combination etc.
The radio bearer of mobile station UE is set up the process that prestores of message and is generally finished in mobile station UE opening initialization process.
Finish after radio bearer sets up the process that prestores of message, enter Radio Resource control connection in the inventive method and set up process and be connected the process of foundation with the Non-Access Stratum signaling.The step that last RAB is set up process is as follows:
Core net CN sends the RAB allocation request message to radio network controller (RNC);
Between radio network controller (RNC) and base station node B, carry out Radio Link reconstruction and the configuration of user's face;
Radio network controller (RNC) is set up message to the radio bearer of simplifying and is sent mobile station UE to.Because in travelling carriage, set up the process that prestores of message by radio bearer, deposit in the space within it, store radio bearer and set up quasistatic message in the message, therefore, when the transmission radio bearer is set up the transmission of message, can not transmit the quasistatic message in the memory headroom that is stored in mobile station UE, and the index that transmits the pre-stored message content of radio bearer correspondence has been indicated just, mobile station UE receives after the radio bearer of simplification is set up message and indicates dynamic content and quasistatic content that radio bearer foundation is correlated with to combine according to the pre-stored message content indexing of radio bearer correspondence that structure is finished radio bearer and set up message.Therefore, so-called here simplification radio bearer is set up message and is not comprised quasistatic message in the described memory headroom that has been reserved in mobile station UE;
Mobile station UE is after receiving that above-mentioned simplification radio bearer is set up message, setting up message according to the radio bearer of simplifying is configured the local terminal entity with the quasistatic message that is stored in the memory headroom, send radio bearer foundation to radio network controller (RNC) then and finish message, the travelling carriage local terminal entity here can be RLC, MAC and physical layer;
Radio network controller (RNC) configuration local terminal entity (for example RLC, MAC), and to core net CN transmission RAB assignment response message;
Transmission was accepted PDP activation message to mobile station UE after core net CN received this RAB assignment response message, finished the foundation of RAB.
Fig. 4 is the schematic diagram of the call set up signaling flow process of called end in the mobile communication system of the present invention.Compare with the call set up signaling flow process of the calling terminal of Fig. 3, owing to be called end, its call setup is passive, is initiated by core net CN, therefore, the difference between them has been to increase a core net CN sends process from paging signal to mobile subscriber UE.Other the process then method with Fig. 3 is identical, discusses no longer in detail at this, and those skilled in the art can be according to the accompanying drawing of the detailed description of Fig. 3 and Fig. 4 being understood and being realized called end call-establishing method of the present invention.
Claims (10)
1, reduces the method for calling terminal calling establishment time delay in a kind of mobile communication system, described mobile communication system comprises travelling carriage, base station, radio network controller and core net, this method comprises: the Radio Resource control connection is set up process, process is set up in the connection of Non-Access Stratum signaling and RAB is set up process, it is characterized in that, comprised also that before said process a radio bearer sets up the process that prestores of message, the process of prestoring that described radio bearer is set up message comprises:
In travelling carriage, reserve a memory headroom;
Quasistatic message in the memory headroom of described reservation in the radio bearer message of the various specific transactions of storage; With
Described travelling carriage is finished radio bearer and is set up prestoring of message in start process; Described RAB is set up process and is comprised:
Described core net sends the RAB allocation request message to described radio network controller;
Between described radio network controller and described base station, carry out Radio Link reconstruction and the configuration of user's face;
Described radio network controller is set up message to the radio bearer of simplifying and is sent described travelling carriage to, and the radio bearer of described simplification sets up that message comprises dynamic radio bearer message content and about the index indication of the radio bearer message that prestores of travelling carriage;
Described travelling carriage is set up message according to described simplification radio bearer and with the quasistatic message that is stored in the described memory headroom local terminal entity is configured, and sends radio bearer foundation to described radio network controller then and finishes message;
After the described radio network controller configuration local terminal entity, send the RAB assignment response message to described core net;
Transmission was accepted packet data protocol (PDP) activating message to described travelling carriage after described core net was received this RAB assignment response message, finished the foundation of RAB.
2, the method for claim 1, it is characterized in that described specific transactions comprises interactive entertainment business, emergency voice calls business, wireless push talk business, Basic voice call business, basic grouped territory business, flows business and interactive service substantially.
3, the method for claim 1, it is characterized in that the quasistatic message in the described radio bearer message comprises: the configuration parameter of the radio bearer mapping parameters corresponding, Radio Link Controller entity parameter, media access controller entity parameter, transmission channel with described specific transactions.
4, the method for claim 1 is characterized in that, the local terminal entity of described travelling carriage comprises Radio Link Controller, media access controller and the physical layer of local terminal.
5, the method for claim 1 is characterized in that, the local terminal entity of described radio network controller comprises the Radio Link Controller and the media access controller of local terminal.
6, reduce the method for called end calling establishment time delay in a kind of mobile communication system, described mobile communication system comprises travelling carriage, base station, radio network controller and core net, this method comprises: process, the Radio Resource control connection that described core net sends paging signal to the mobile subscriber set up process, Non-Access Stratum signaling and connected and set up process and RAB is set up process, it is characterized in that, comprised also that before said process a radio bearer sets up the process that prestores of message, the process of prestoring that described radio bearer is set up message comprises:
In travelling carriage, reserve a memory headroom;
Quasistatic message in the memory headroom of described reservation in the radio bearer message of the various specific transactions of storage; With
Described travelling carriage is finished radio bearer and is set up prestoring of message in start process;
Described RAB is set up process and is comprised:
Described core net sends the RAB allocation request message to described radio network controller;
Between described radio network controller and described base station, carry out Radio Link reconstruction and the configuration of user's face;
Described radio network controller is set up message to the radio bearer of simplifying and is sent described travelling carriage to, and the radio bearer of described simplification sets up that message comprises dynamic radio bearer message content and about the index indication of the radio bearer message that prestores of travelling carriage;
Described travelling carriage is set up message according to described simplification radio bearer and with the quasistatic message that is stored in the described memory headroom local terminal entity is configured, and sends radio bearer foundation to described radio network controller then and finishes message;
After the described radio network controller configuration local terminal entity, send the RAB assignment response message to described core net;
Transmission was accepted packet data protocol (PDP) activating message to described travelling carriage after described core net was received this RAB assignment response message, finished the foundation of RAB.
7, method as claimed in claim 6 is characterized in that, described specific transactions comprises interactive entertainment business, emergency voice calls business, wireless push talk business, Basic voice call, basic grouped territory business, flows business and interactive service substantially.
8, method as claimed in claim 6, it is characterized in that the quasistatic message in the described radio bearer message comprises: the configuration parameter of the radio bearer mapping parameters corresponding, Radio Link Controller entity parameter, media access controller entity parameter, transmission channel with described specific transactions.
9, method as claimed in claim 6 is characterized in that, the local terminal entity of described travelling carriage comprises Radio Link Controller, media access controller and the physical layer of local terminal.
10, method as claimed in claim 6 is characterized in that, the local terminal entity of described radio network controller comprises the Radio Link Controller and the media access controller of local terminal.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2001078328A2 (en) * | 2000-04-10 | 2001-10-18 | Nokia Corporation | A technique for setting up calls in internet protocol mobile network |
| US6584321B1 (en) * | 1999-05-07 | 2003-06-24 | At&T Wireless Services, Inc. | Method and apparatus for wireless data services over a selected bearer service |
| CN1540999A (en) * | 2003-04-24 | 2004-10-27 | 普天信息技术研究院 | Accessing method and system for wireless access system |
| WO2005057799A2 (en) * | 2003-12-08 | 2005-06-23 | Motorola, Inc. A Corporation Of The State Of Delaware | Bearer format information in a cellular system |
| CN1669351A (en) * | 2002-09-27 | 2005-09-14 | 艾利森电话股份有限公司 | Requesting and controlling access in wireless communication network |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6584321B1 (en) * | 1999-05-07 | 2003-06-24 | At&T Wireless Services, Inc. | Method and apparatus for wireless data services over a selected bearer service |
| WO2001078328A2 (en) * | 2000-04-10 | 2001-10-18 | Nokia Corporation | A technique for setting up calls in internet protocol mobile network |
| CN1669351A (en) * | 2002-09-27 | 2005-09-14 | 艾利森电话股份有限公司 | Requesting and controlling access in wireless communication network |
| CN1540999A (en) * | 2003-04-24 | 2004-10-27 | 普天信息技术研究院 | Accessing method and system for wireless access system |
| WO2005057799A2 (en) * | 2003-12-08 | 2005-06-23 | Motorola, Inc. A Corporation Of The State Of Delaware | Bearer format information in a cellular system |
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Application publication date: 20070328 Assignee: SPREADTRUM COMMUNICATIONS (SHANGHAI) Co.,Ltd. Assignor: Xin Xin finance leasing (Beijing) Co.,Ltd. Contract record no.: X2021110000008 Denomination of invention: Method of reducing call setup delay in mobile communication system Granted publication date: 20081126 License type: Exclusive License Record date: 20210317 |
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