WO2000024225A1 - Sms initiation of a data call - Google Patents

Sms initiation of a data call Download PDF

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Publication number
WO2000024225A1
WO2000024225A1 PCT/US1999/024300 US9924300W WO0024225A1 WO 2000024225 A1 WO2000024225 A1 WO 2000024225A1 US 9924300 W US9924300 W US 9924300W WO 0024225 A1 WO0024225 A1 WO 0024225A1
Authority
WO
WIPO (PCT)
Prior art keywords
network
wireless terminal
host computer
call
message
Prior art date
Application number
PCT/US1999/024300
Other languages
French (fr)
Inventor
Andrew T. Hunter
Original Assignee
Qualcomm Incorporated
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Incorporated filed Critical Qualcomm Incorporated
Priority to EP99970832A priority Critical patent/EP1120006A1/en
Priority to KR1020017004791A priority patent/KR20010080192A/en
Priority to AU12100/00A priority patent/AU1210000A/en
Priority to JP2000577858A priority patent/JP2002528979A/en
Publication of WO2000024225A1 publication Critical patent/WO2000024225A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/42195—Arrangements for calling back a calling subscriber
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges
    • H04Q3/0025—Provisions for signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2203/00—Aspects of automatic or semi-automatic exchanges
    • H04M2203/20—Aspects of automatic or semi-automatic exchanges related to features of supplementary services
    • H04M2203/2066—Call type detection of indication, e.g. voice or fax, mobile of fixed, PSTN or IP
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2207/00—Type of exchange or network, i.e. telephonic medium, in which the telephonic communication takes place
    • H04M2207/18—Type of exchange or network, i.e. telephonic medium, in which the telephonic communication takes place wireless networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/50—Centralised arrangements for answering calls; Centralised arrangements for recording messages for absent or busy subscribers ; Centralised arrangements for recording messages
    • H04M3/53—Centralised arrangements for recording incoming messages, i.e. mailbox systems
    • H04M3/5322—Centralised arrangements for recording incoming messages, i.e. mailbox systems for recording text messages

Definitions

  • This invention relates to wireless digital telephony, and has particular relation to establishing non-voice data communication with a wireless terminal.
  • a conventional network 100 can connect a wireless terminal 102, via wireless infrastructure (base stations, etc.) 104, to a host computer 106 by using either of two routes.
  • the wireless terminal makes a non-voice digital wireless connection to the wireless infrastructure 108.
  • the difference in routes comes from what the wireless infrastructure 108 does to the non- voice signal.
  • the "non-voice" qualification is important.
  • the wireless telephone system is, as noted above, digital.
  • both voice and non-voice data are carried in a digital format.
  • the two digital formats are different, though.
  • the voice format tolerates more errors in order to minimize delay, while the non-voice format tolerates more delay in order to minimize errors.
  • the wireless infrastructure 104 applies the signal as circuit switched data to a first modem 108, which modulates it as it enters a circuit switched network 110 (conventionally, the Public Switch Telephone Network, or PSTN).
  • the PSTN 110 applies the modulated signal to a second modem 112, which demodulates it as it leaves the PSTN 110 and applies the demodulated signal to the host computer 106.
  • the wireless infrastructure applies the signal as packet data to an interworking function 114, which applies the interworked data to the Internet 116, which applies it to the host computer 106.
  • an interworking function 114 which applies the interworked data to the Internet 116, which applies it to the host computer 106.
  • Both routes work well when the wireless terminal 102 wants to initiate a data connection with the host computer 106, since the host has a fixed electronic address, both on the PSTN 110 and on the Internet 116.
  • FIG. 3 shows the chink in the prior art's armor which applicant has used to overcome this problem, without expensive infrastructure upgrades.
  • the PSTN 110 has both a signaling network 302 (conventionally, Signaling System 7, or SS7) and a traffic network 304.
  • SS7 302 locates both ends of the conversation (in this case, the two modems 108 and 112) and ensures that a circuit switched connection can be made through the traffic network 304 before attempting to set up such a connection. Since SS7 302 requires much less bandwidth than the traffic network 304, the entire PSTN 110 works much more efficiently.
  • SS7 302 has, as networks technology evolved, been pressed into additional uses, which include mobility management through Mobile Application Parts (MAP) such as, for example IS-41.
  • MAP Mobile Application Parts
  • SMS Short Message System
  • FIG. 1 is block diagram 100 of a wireless terminal 102 conventionally succeeding in communicating with a host computer 106.
  • FIG. 2 is block diagram 200 of the host computer 106 conventionally attempting (and failing) to communicate with the wireless terminal 102.
  • FIG. 3 shows the internal structure of the conventional Public Switch Telephone Network 110.
  • FIG. 4 is a block diagram 400 of a wireless terminal 404 including a novel SMS call-back element 410.
  • FIG. 5 is a flow chart 500 showing the operation of the apparatus of FIG. 4. DETAILED DESCRIPTION OF DRAWINGS
  • FIGS. 1-3 show the prior art and have been adequately discussed above.
  • the conventional wireless terminal 102 has been modified into a novel wireless terminal 402.
  • Terminal 402 receives wireless signals through antenna 404, which applies them to a receiver 406.
  • Receiver 406 passes these signals to an SMS call-back element 408.
  • the SMS call-back element 408 is so called because it looks for control signals from the signaling network 302.
  • this signaling network 302 it is conventional for this signaling network 302 to be a Mobile Application Part conveyed over signaling system #7. If it is, then one possible MAP control signal is a message in Short Message Service (SMS) format.
  • SMS Short Message Service
  • Such a message may readily be coded (through use of Teleservice identities or some other novel encoding format) to indicate that it is a call-back message, and include a designation of the host computer 106 which is to be called back.
  • the callback element 408 passes this information on to a processor 410, which may be fully automatic or under the control of the terminal user.
  • This processor 410 causes a transmitter 412 to initiate a data call through antenna 404.
  • the receiving and transmitting antennas may be separate if desired.
  • SMS messages may be used instead of SMS messages if desired. This is not preferred. If an SMS message is used, then only the host computer 106 and wireless terminal 102 need to be upgraded to send and process the call-back signal, and this upgrade might be nothing more than a software change. The infrastructure 104 and networks 110 and 116 may be left unchanged. If a new control signal is used, expensive changes may be required.
  • FIG. 5 is a flow chart 500 showing the operation of the apparatus of FIG. 4.
  • the wireless terminal 102 receives 502 an SMS message. It then determines 504 whether the message includes a call-back request. If it does 506, then it calls the host computer 106 back, using non-voice data format. If not 508, then the message is considered for further processing, and the next message is received 502.
  • This invention is capable of exploitation in industry, and can be made and used, whenever is it desired for a host computer to establish non-voice data communication with a wireless terminal.
  • the individual components of the apparatus and method shown herein, taken separate and apart from one another, may be entirely conventional, it being their combination which I claim as my invention.

Abstract

A host computer (106) wants to send non-voice data to a wireless terminal (102). It does so by sending a Short Message Service (SMS) message over signaling network (302) to wireless terminal (102) requesting a call-back. In response to this SMS message, wireless terminal (102) sends non-voice data back to wireless infrastructure (104), and thus calls the host computer (106) back.

Description

SMS INITIATION OF A DATA CALL
I. Technical Field
This invention relates to wireless digital telephony, and has particular relation to establishing non-voice data communication with a wireless terminal.
II. Background Art
As shown in FIG. 1, a conventional network 100 can connect a wireless terminal 102, via wireless infrastructure (base stations, etc.) 104, to a host computer 106 by using either of two routes. In both routes, the wireless terminal makes a non-voice digital wireless connection to the wireless infrastructure 108. The difference in routes comes from what the wireless infrastructure 108 does to the non- voice signal.
The "non-voice" qualification is important. The wireless telephone system is, as noted above, digital. Thus, both voice and non-voice data are carried in a digital format. The two digital formats are different, though. The voice format tolerates more errors in order to minimize delay, while the non-voice format tolerates more delay in order to minimize errors.
In the first route, the wireless infrastructure 104 applies the signal as circuit switched data to a first modem 108, which modulates it as it enters a circuit switched network 110 (conventionally, the Public Switch Telephone Network, or PSTN). The PSTN 110 applies the modulated signal to a second modem 112, which demodulates it as it leaves the PSTN 110 and applies the demodulated signal to the host computer 106.
In the second route, the wireless infrastructure applies the signal as packet data to an interworking function 114, which applies the interworked data to the Internet 116, which applies it to the host computer 106. Both routes work well when the wireless terminal 102 wants to initiate a data connection with the host computer 106, since the host has a fixed electronic address, both on the PSTN 110 and on the Internet 116.
As shown in FIG. 2, neither route works well when the network works in reverse 200. Now it is the host computer 106 which wants to initiate the data connection, but it does not know where the wireless terminal 102 is, that is, which base station or other part of the wireless infrastructure 104 is in direct connection with the wireless terminal 102. It thus has no electronic address for the wireless terminal 102. Various Mobile Internet Protocols have been proposed, but it will be a fairly long time before the Internet is upgraded to address this situation. The telecommunications industry can't wait that long; it needs something now.
BRIEF DISCLOSURE OF THE INVENTION
FIG. 3 shows the chink in the prior art's armor which applicant has used to overcome this problem, without expensive infrastructure upgrades. Applicant has noticed that the PSTN 110 has both a signaling network 302 (conventionally, Signaling System 7, or SS7) and a traffic network 304. SS7 302 locates both ends of the conversation (in this case, the two modems 108 and 112) and ensures that a circuit switched connection can be made through the traffic network 304 before attempting to set up such a connection. Since SS7 302 requires much less bandwidth than the traffic network 304, the entire PSTN 110 works much more efficiently. SS7 302 has, as networks technology evolved, been pressed into additional uses, which include mobility management through Mobile Application Parts (MAP) such as, for example IS-41. These are in addition to its initial use, in fixed wireline and tandem networks, in which a conventional SS7 signal tells a receiving signaling point, in effect, "Please alert the terminal; the traffic network is ready to complete a call as soon as your handset goes off-hook."
One of these value-added additional uses, which MAPs bring to the network, is the Short Message System (SMS). SMS, in effect, locates a mobile .terminal and sends to it a message, similar to a pager, "Please alert user; please also show the following n characters on your display unit, ready to be seen when your customer next has the chance to look." Small messages have been deemed to be an acceptable burden on SS7 302, yet it both avoids a full bandwidth telephone call and generates revenue for the operating company. It thus occupies a valuable middle ground between an unanswered call (no revenue) and a call answered by an answering machine (full revenue, but reduced service to the customer).
Applicant has noted that the MAP of SS7 302 is fully mobile, and that the host computer could thus easily send an SMS message to the wireless terminal. The SMS message could state, "Call the host computer back (here stating the host's PSTN number or Internet address), using non-voice format." That is, the host computer does not initiate the non-voice data connection. Instead, it takes advantage of the wireless terminal's ability to initiate a non-voice data connection, and asks — by means of an SMS message — the wireless terminal to do so.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is block diagram 100 of a wireless terminal 102 conventionally succeeding in communicating with a host computer 106.
FIG. 2 is block diagram 200 of the host computer 106 conventionally attempting (and failing) to communicate with the wireless terminal 102.
FIG. 3 shows the internal structure of the conventional Public Switch Telephone Network 110.
FIG. 4 is a block diagram 400 of a wireless terminal 404 including a novel SMS call-back element 410.
FIG. 5 is a flow chart 500 showing the operation of the apparatus of FIG. 4. DETAILED DESCRIPTION OF DRAWINGS
FIGS. 1-3 show the prior art and have been adequately discussed above.
In FIG. 4, the conventional wireless terminal 102 has been modified into a novel wireless terminal 402. Terminal 402 receives wireless signals through antenna 404, which applies them to a receiver 406. Receiver 406 passes these signals to an SMS call-back element 408. The SMS call-back element 408 is so called because it looks for control signals from the signaling network 302. As noted above, it is conventional for this signaling network 302 to be a Mobile Application Part conveyed over signaling system #7. If it is, then one possible MAP control signal is a message in Short Message Service (SMS) format. Such a message may readily be coded (through use of Teleservice identities or some other novel encoding format) to indicate that it is a call-back message, and include a designation of the host computer 106 which is to be called back. The callback element 408 passes this information on to a processor 410, which may be fully automatic or under the control of the terminal user. This processor 410 causes a transmitter 412 to initiate a data call through antenna 404. The receiving and transmitting antennas may be separate if desired.
Other control signals may be used instead of SMS messages if desired. This is not preferred. If an SMS message is used, then only the host computer 106 and wireless terminal 102 need to be upgraded to send and process the call-back signal, and this upgrade might be nothing more than a software change. The infrastructure 104 and networks 110 and 116 may be left unchanged. If a new control signal is used, expensive changes may be required.
FIG. 5 is a flow chart 500 showing the operation of the apparatus of FIG. 4. The wireless terminal 102 receives 502 an SMS message. It then determines 504 whether the message includes a call-back request. If it does 506, then it calls the host computer 106 back, using non-voice data format. If not 508, then the message is considered for further processing, and the next message is received 502.
Industrial Application This invention is capable of exploitation in industry, and can be made and used, whenever is it desired for a host computer to establish non-voice data communication with a wireless terminal. The individual components of the apparatus and method shown herein, taken separate and apart from one another, may be entirely conventional, it being their combination which I claim as my invention.
While I have describe various modes of apparatus and method, the true spirit and scope of our invention is not limited thereto, but is limited only by the following claims and their equivalents, and I claim such as my invention. What is claimed is:

Claims

1) In a network including: a) a host computer; b) a wireless terminal; c) a signaling network adapted to connect the host computer and the wireless terminal; and d) a traffic network adapted to connect the host computer and the wireless terminal; the improvement comprising a method for the host computer to establish non-voice data communication with the wireless terminal, the method comprising the steps of: e) the host computer sending a call-back message to the wireless terminal over the signaling network; and f) the wireless terminal, in response to the call-back message, initiating a data call back the host computer in non-voice data communication mode over the traffic network.
2) The method of Claim 1, wherein the signaling network comprises signaling system #7.
3) The method of Claim 2, wherein the call-back message comprises a Short Message Service (SMS) message.
4) The method of Claim 1, wherein: a) the traffic network comprises a circuit switched network; and b) the method further comprises the steps of modulating the data call as it enters the traffic network, and demodulating the data call as it leaves the traffic network.
5) The method of Claim 4, wherein the circuit switched network comprises the public switched telephone network. 6) The method of Claim 1, wherein the traffic network comprises a packet switched network.
7) The method of Claim 6, wherein the packet switched network comprises the Internet.
8) In a network including: a) a host computer; b) a wireless terminal; c) a signaling network adapted to connect the host computer and the wireless terminal; and d) a traffic network adapted to connect the host computer and the wireless terminal; the improvement comprising apparatus for the host computer to establish non-voice data communication with the wireless terminal, the apparatus comprising: e) means for the host computer to send a call-back message to the wireless terminal over the signaling network; and f) means for the wireless terminal, in response to the call-back message, to initiate a data call back to the host computer in non-voice data communication mode over the traffic network.
9) The apparatus of Claim 8, wherein the signaling network comprises signaling system #7.
10) The method of Claim 9, wherein the call-back message comprises a Short Message Service (SMS) message.
11) The apparatus of Claim 8, wherein: a) the traffic network comprises a circuit switched network; and b) the apparatus further comprises a first modem connected to modulate the data call as it enters the traffic network, and a second modem connected to demodulate the data call as it leaves the traffic network.
12) The apparatus of Claim 10, wherein the circuit switched network comprises the public switched telephone network.
13) The apparatus of Claim 8, wherein the traffic network comprises a packet switched network.
14) The apparatus of Claim 13, wherein the packet switched network comprises the Internet.
15) A wireless terminal, further comprising: a) means for receiving a call-back message to the wireless terminal from a host computer over a signaling network; and b) means, in response to the call-back message, for initiating a data call back to the host computer in non-voice data communication mode over a traffic network.
16) The apparatus of Claim 15, wherein the signaling network comprises signaling system #7.
17) The method of Claim 16, wherein the call-back message comprises a Short Message Service (SMS) message.
18) The apparatus of Claim 15, wherein: a) the traffic network comprises a circuit switched network; and b) the apparatus further comprises a first modem connected to modulate the data call as it enters the traffic network, and a second modem connected to demodulate the data call as it leaves the traffic network. 19) The apparatus of Claim 18, wherein the circuit switched network comprises the public switched telephone network.
20) The apparatus of Claim 15, wherein the traffic network comprises a packet switched network.
21) The apparatus of Claim 20, wherein the packet switched network comprises the Internet.
PCT/US1999/024300 1998-10-16 1999-10-18 Sms initiation of a data call WO2000024225A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP99970832A EP1120006A1 (en) 1998-10-16 1999-10-18 Sms initiation of a data call
KR1020017004791A KR20010080192A (en) 1998-10-16 1999-10-18 Sms initiation of a data call
AU12100/00A AU1210000A (en) 1998-10-16 1999-10-18 Sms initiation of a data call
JP2000577858A JP2002528979A (en) 1998-10-16 1999-10-18 Data call SMS initiation method and apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US17384198A 1998-10-16 1998-10-16
US09/173,841 1998-10-16

Publications (1)

Publication Number Publication Date
WO2000024225A1 true WO2000024225A1 (en) 2000-04-27

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PCT/US1999/024300 WO2000024225A1 (en) 1998-10-16 1999-10-18 Sms initiation of a data call

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EP (1) EP1120006A1 (en)
JP (1) JP2002528979A (en)
KR (1) KR20010080192A (en)
CN (1) CN1328760A (en)
AU (1) AU1210000A (en)
WO (1) WO2000024225A1 (en)

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KR20020032460A (en) * 2001-09-17 2002-05-03 오봉환 the voice service provision method which uses a short message service and a automatic response service
FR2819670A1 (en) * 2001-01-17 2002-07-19 Sagem Mobile telephone second person recall technique having caller satisfying identity second person and sending message requesting recall with second person receiving/viewing message and sending recall.
KR20030029169A (en) * 2001-10-05 2003-04-14 최중인 System and method for forwarding services using short message services
KR100419917B1 (en) * 2001-12-05 2004-02-25 휴쳐인터넷주식회사 Multiplexed character message and calling service method and system therefor
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KR100708340B1 (en) 2005-08-09 2007-04-17 시스템베이스 주식회사 Message conversion apparatus using SMS and the method thereof
WO2008025974A1 (en) * 2006-08-29 2008-03-06 Vodafone Group Plc Call initiation in a telecommunications network

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US8073429B2 (en) * 2004-11-01 2011-12-06 Broadcom Corporation Cellular media message forwarding
CN101827339A (en) * 2010-03-02 2010-09-08 中兴通讯股份有限公司 Method and system for exchanging calling role and called role between communication terminals
CN101883187A (en) * 2010-06-25 2010-11-10 北京中星微电子有限公司 Method of realizing automatic incoming call of mobile phone, system and mobile phone with automatic incoming call function

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FR2802743A1 (en) * 1999-12-20 2001-06-22 Cit Alcatel Network mini message transmission method having communication channel established/available field found/message authenticated message field placed and caller/called transmitted.
WO2001047197A2 (en) * 1999-12-20 2001-06-28 Alcatel Method for transmitting mini-messages and associated device
WO2001047197A3 (en) * 1999-12-20 2002-02-07 Cit Alcatel Method for transmitting mini-messages and associated device
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FR2819670A1 (en) * 2001-01-17 2002-07-19 Sagem Mobile telephone second person recall technique having caller satisfying identity second person and sending message requesting recall with second person receiving/viewing message and sending recall.
KR20020032460A (en) * 2001-09-17 2002-05-03 오봉환 the voice service provision method which uses a short message service and a automatic response service
KR20030029169A (en) * 2001-10-05 2003-04-14 최중인 System and method for forwarding services using short message services
KR100419917B1 (en) * 2001-12-05 2004-02-25 휴쳐인터넷주식회사 Multiplexed character message and calling service method and system therefor
WO2005034061A1 (en) * 2003-09-30 2005-04-14 Koninklijke Philips Electronics N.V. Communications device comprising a receiver for important information, method of transmitting such information, and transmitting system using such a method
KR100708340B1 (en) 2005-08-09 2007-04-17 시스템베이스 주식회사 Message conversion apparatus using SMS and the method thereof
WO2008025974A1 (en) * 2006-08-29 2008-03-06 Vodafone Group Plc Call initiation in a telecommunications network

Also Published As

Publication number Publication date
JP2002528979A (en) 2002-09-03
AU1210000A (en) 2000-05-08
CN1328760A (en) 2001-12-26
KR20010080192A (en) 2001-08-22
EP1120006A1 (en) 2001-08-01

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