WO2001022302A1 - Pont de communications pour simulation de transfert de donnees a commutation de circuit - Google Patents

Pont de communications pour simulation de transfert de donnees a commutation de circuit Download PDF

Info

Publication number
WO2001022302A1
WO2001022302A1 PCT/US2000/025808 US0025808W WO0122302A1 WO 2001022302 A1 WO2001022302 A1 WO 2001022302A1 US 0025808 W US0025808 W US 0025808W WO 0122302 A1 WO0122302 A1 WO 0122302A1
Authority
WO
WIPO (PCT)
Prior art keywords
modem
wireless
data
short message
message service
Prior art date
Application number
PCT/US2000/025808
Other languages
English (en)
Inventor
Daniel Monroe
Gregory Rea
Jeffery Turner
Jeffrey Newman
Original Assignee
Xircom Wireless, Inc.
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
Priority claimed from US09/400,623 external-priority patent/US6363335B1/en
Priority claimed from US09/444,044 external-priority patent/US6697421B1/en
Application filed by Xircom Wireless, Inc. filed Critical Xircom Wireless, Inc.
Priority to GB0204099A priority Critical patent/GB2370185B/en
Priority to AU40206/01A priority patent/AU4020601A/en
Priority to JP2001525595A priority patent/JP2003512750A/ja
Publication of WO2001022302A1 publication Critical patent/WO2001022302A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
    • H04M3/32—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for lines between exchanges
    • H04M3/323—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for lines between exchanges for the arrangements providing the connection (test connection, test call, call simulation)
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/18—Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/02—Inter-networking arrangements

Definitions

  • a method and apparatus for circuit switched data transfer simulation is provided.
  • a communications bridge or interface
  • communications are actually performed by way of GSM short messaging services (hereinafter "SMS").
  • SMS GSM short messaging services
  • each of the interfaces includes an RS-232 port having a DB-9 or equivalent physical connector.
  • COMA 304, COMR 308 and DEBUG 312, for example, can be implemented with such connectors.
  • Communication lines 316, 320, and 324 communicatively couple the physical connectors to the preprocessor 300.
  • the first interface 328 connects to user equipment (e.g., telemetry equipment, automatic meter reading equipment, meter reader concentration point, utility meter control system, substation monitoring equipment, etc.).
  • the user equipment is configured to collect measured data that monitors external activity.
  • the second interface 336 is a physical connection to a wireless radio, more specifically a GSM modem having a baud rate of approximately 9600 bps or higher.
  • the third interface 332 is preferably an open serial interface capable of receiving a terminal or test equipment for debugging and configuration purposes.
  • the debug port services can be physically accessed through the first interface 328.
  • Each RS-232 connector 304, 308 and 312 is shown coupled to the preprocessor 300 by unique communication lines 316, 320 and 324. This is for simplicity and to represent a unique address for each communication port or serial interface. In fact, a single address and data bus can support the communication ports.
  • PSTN PSTN
  • the circuit mode 712 is maintained until an escape sequence 720 is detected. However, if a re-enter command 732 is detected following the escape sequence 720, then the interrupt service routine will return to the circuit mode 712 and not to IDLE mode 704.
  • act 820 if an interrupt was received at the second interface 620, then an exception occurs and processing continues to the second interface interrupt service routine in act 824, which is described above with reference to FIG. 7B and below with reference to FIG. 10.
  • act 828 a test is performed to determine whether the elapsed time since the last data character was received over the first interface 616 (e.g., through COMA 304) when the first interface interrupt service routine is in SMS mode 708. The test is referred to as the SMS timer expire event. If the SMS timer event has occurred, then in act 832 the memory buffer is prepared for SMS transmission, the SMS message is transmitted and the SMS timer is reset. Processing continues to act 836.
  • a test is performed to determine whether the present mode is IDLE mode 704. If the present mode is IDLE mode 704, then the incoming data character from the first interface 616 is added to a memory buffer.
  • a test is performed to determine whether a process trigger (e.g., a carriage return, a CTRL-Z, or the memory buffer is full) has occurred. If a process trigger has occurred, then in act 936, the memory buffer is parsed, interpreted and the appropriate acts performed. A list of exemplary interpreted strings and their results is shown in Table 2.
  • a test is performed to determine whether the present mode is CKT mode 770. If the present mode is CKT mode 770, then any data characters received at the second interface 620 (e.g., COMR 308) are passed through the preprocessor 604 to the first interface 616 (e.g., to COMA 304) in act 1008.
  • a test is performed to determine whether an escape sequence has been received. According to one embodiment, the escape sequence is the receipt of three consecutive plus signs, or the string "+++”. If the escape sequence is not found, then the escape counter is reset in act 1016. However, if the escape sequence is found, then the mode is set to IDLE mode 754 in act 1020. After acts 1016 or 1020, the preprocessor driver continues to act 828.
  • a test is performed to determine whether the present mode is IDLE mode 754. If the present mode is IDLE mode 754, then data characters received at the second interface 620 are passed through to first interface 616 in act 1028.
  • a test is performed to determine whether a link sequence is found in the data characters. According to one embodiment, the link sequence is the string "+CMTL", which indicates an incoming SMS message. If the link sequence is not detected, then the escape counter is reset at act 1036. However, if a link sequence was detected, then the inbound SMS message is read in act 1040.
  • the inventions can be embodied in software code that comprises the AT command interface 1504.
  • the AT command interface is overlaid onto each of the various GSM protocol stacks 1500, 1580 and 1590. Commands, as described above with reference to Table 2, are thus bridged between the user equipment 1304 and the GSM protocol stack - and, hence, the GSM network 1320 (FIG. 13).
  • the AT command interface 1504 can also include event detection and notification software that detects alarms from the user equipment and handles them appropriately — for example by initializing a simulated circuit switched or circuit switched call.
  • Some exemplary AT commands are shown in Table 3. Table 3
  • the user equipment 1304 sends data over a GSM network 1320 using the Hayes standard AT command interface 1504.
  • the mobile network man machine interface (MN) 1512 receives the data and passes the data to the appropriate messaging service — e.g., a short message service (SMS) 1516, a call control service (CC) 1520, or a supplementary service (SS) 1524.
  • SMS short message service
  • CC call control service
  • SS supplementary service
  • a registration element 1508 will provide the mobility management layer 1528 with necessary information about the data and the network. From each of layers 1508, 1516, 1520 and 1524 data flow is then directed to and from the mobility management layer (MM) 1528.
  • MM mobility management layer
  • the wireless modem is configured to allow remote initialization of configuration parameters via short message service messages.
  • the short message service messages can contain data that not only initializes the wireless modem's operating parameters, but data that calls other commands or applications executing internally or externally to the wireless modem.
  • the methods and techniques allow remote initialization of event detection and notification algorithms internal to the wireless modem.
  • the methods and techniques allow remote initialization or control of a device external to the wireless modem, for example a utility meter, a vending machine, or other user equipment.
  • FIG. 17 depicts an exemplary network 1700 that employs the techniques.
  • User equipment 1720 is connected via a serial cable or other line 1706 (hereinafter “line 1706") to a wireless modem 1704, preferably a global system for mobile communications (hereinafter “GSM”) or general packet radio service (hereinafter “GPRS”) -type modem.
  • GSM global system for mobile communications
  • GPRS general packet radio service
  • user equipment 1720 is depicted as a laptop computer, it can be a less sophisticated or more limited functionality form of user equipment such as a utility meter, a meter concentration point, a utility meter control system, a substation monitor, telemetry equipment, or a vending machine.
  • additional commands can include directing a processor in the wireless modem 1704 to check the quality of an RF signal detected at an RF transceiver, or to select a particular RF channel over the over-the-air interface will communicate certain information with the wireless modem. Further still, the commands can include directing a processor to retrieve a call history file or log that describes the calls sent from or received by the wireless modem 1704.
  • Step 2004 shows the main routine handling/executing the GSM processing. This processing will continue uninterrupted until an alarm condition (or "event") is detected in step 2008. If an alarm condition is detected, then processing continues to the notification algorithm 2100 depicted in FIG. 21.
  • the notification will be transmitted in the form of a GSM short message service (hereinafter "SMS") message.
  • SMS GSM short message service
  • a text script for transmission is created, such as "gas leak detected, IAC Hampton site, unit no 3, 07- 23-99 05:34 PST".
  • the text script can be "out of stock B3, SCU building 5, unit no 2, 06-09-99 18:23 PST”.
  • multiple alarm conditions can be collected and summed by the notification algorithm 2100 each time the interrupt is detected. Once a threshold number of alarm conditions have been reached, for example six snack selections in a vending machine are empty, then the notification algorithm 2100 passes data along to the main routine 2000 for processing and delivery via the wireless protocol stack.
  • the text scripts and other data used as parameters for the event message command described above are preferably stored in non-volatile memory (such as memory 1912) so that the commands only have to be programmed once and that no processing requirements (beyond the alarm condition circuitry - which likely already exists) are placed on the external device (for example vending machine 1940).
  • non-volatile memory such as memory 1912

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

L"invention porte sur un pont (300) de communications destiné à simuler des liaisons à commutation de circuit vers un équipement utilisateur. Ce pont de communications reçoit des données provenant de l"équipement utilisateur sur une interface (328) de données série. Le pont (300) de communications simule des réponses de liaisons à commutation de circuit vers l"équipement utilisateur de sorte que celui-ci pense qu"une liaison à commutation de circuit a été établie. Les données sont envoyées par une seconde interface (336) à une radio hertzienne ou un modem GSM.
PCT/US2000/025808 1999-09-20 2000-09-19 Pont de communications pour simulation de transfert de donnees a commutation de circuit WO2001022302A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB0204099A GB2370185B (en) 1999-09-20 2000-09-19 Communications bridge for circuit switched data transfer simulation
AU40206/01A AU4020601A (en) 1999-09-20 2000-09-19 Communications bridge for circuit switched data transfer simulation
JP2001525595A JP2003512750A (ja) 1999-09-20 2000-09-19 回線交換データ転送シミュレーションのための通信ブリッジ

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US09/400,623 1999-09-20
US09/400,623 US6363335B1 (en) 1999-09-20 1999-09-20 Communications bridge for circuit switched data transfer simulation
US44402099A 1999-11-19 1999-11-19
US09/444,044 1999-11-19
US09/444,020 1999-11-19
US09/444,044 US6697421B1 (en) 1999-11-19 1999-11-19 Operator independent, transparent wireless modem management

Publications (1)

Publication Number Publication Date
WO2001022302A1 true WO2001022302A1 (fr) 2001-03-29

Family

ID=27410416

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/025808 WO2001022302A1 (fr) 1999-09-20 2000-09-19 Pont de communications pour simulation de transfert de donnees a commutation de circuit

Country Status (5)

Country Link
JP (1) JP2003512750A (fr)
CN (1) CN1384942A (fr)
AU (1) AU4020601A (fr)
GB (1) GB2370185B (fr)
WO (1) WO2001022302A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003058911A1 (fr) * 2002-01-11 2003-07-17 Siemens Aktiengesellschaft Etablissement d'une communication entre un reseau tcp / ip et un terminal electrique sans protocole tcp / ip implemente
US7202800B2 (en) 2002-07-12 2007-04-10 Lg Electronics Inc. Mobile communication-based remote meter reading system and method
WO2011014339A1 (fr) 2009-07-30 2011-02-03 Silicon Image, Inc. Signalisation pour transitions entre modes de transmission de donnees
US8644334B2 (en) 2009-09-30 2014-02-04 Silicon Image, Inc. Messaging to provide data link integrity

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014205656A1 (fr) * 2013-06-25 2014-12-31 Thomson Licensing Procédé et appareil de traitement pour suppression d'alarme
JP6448080B2 (ja) * 2014-09-26 2019-01-09 株式会社日立国際電気 無線通信システム、通信方法、無線通信モジュール

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5537458A (en) * 1992-08-17 1996-07-16 Nokia Telecommunications Oy Facsimile transmission in a digital cellular radio network
US5559870A (en) * 1995-06-30 1996-09-24 Scientific-Atlanta, Inc. Method and apparatus for providing information to a subscriber over an electronic network
EP0849682A1 (fr) * 1996-12-20 1998-06-24 International Business Machines Corporation Adaptateur de communication de données

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02165750A (ja) * 1988-12-20 1990-06-26 Fujitsu Ltd モデム内蔵ターミナルアダプタ
JP2669441B2 (ja) * 1991-10-07 1997-10-27 富士通株式会社 Ａｔコマンドを用いたｄｔｅファシリティ制御方式
JP3204483B2 (ja) * 1995-01-12 2001-09-04 株式会社エヌ・ティ・ティ・ドコモ データ伝送システムおよびデータ伝送方法
SE512509C2 (sv) * 1997-12-17 2000-03-27 Ericsson Telefon Ab L M Förfarande och anordning för upprättande av datakommunikation via ett mobiltelefonmodem
JPH11251998A (ja) * 1998-02-27 1999-09-17 Hitachi Ltd 通信装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5537458A (en) * 1992-08-17 1996-07-16 Nokia Telecommunications Oy Facsimile transmission in a digital cellular radio network
US5559870A (en) * 1995-06-30 1996-09-24 Scientific-Atlanta, Inc. Method and apparatus for providing information to a subscriber over an electronic network
EP0849682A1 (fr) * 1996-12-20 1998-06-24 International Business Machines Corporation Adaptateur de communication de données

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
ANONYMOUS: "GSM modules for remote applications", ELECTRONIC TIMES, 9 November 1998 (1998-11-09), XP002936946 *
BOLTON C.R.: "The cellular way to retrieve data", TRANSMISSION & DISTRIBUTION, October 1994 (1994-10-01), pages 54 - 57, 59, XP002936944 *
MORASSI ET AL.: "Real time simulation of fax transmission on the transparent GSM data service", 5TH IEEE INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS, pages 944 - 953, XP002936943 *
MURCH A. ET AL.: "Cellular data services over GSM", TELECOMMUNICATIONS, vol. 29, no. 3, March 1995 (1995-03-01), pages 63 - 64, 70-71, XP002936945 *
ORR S.: "Cell phones act as modems", COMPUTER DEALER NEWS, 14 May 1999 (1999-05-14), XP002936947 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003058911A1 (fr) * 2002-01-11 2003-07-17 Siemens Aktiengesellschaft Etablissement d'une communication entre un reseau tcp / ip et un terminal electrique sans protocole tcp / ip implemente
US7202800B2 (en) 2002-07-12 2007-04-10 Lg Electronics Inc. Mobile communication-based remote meter reading system and method
WO2011014339A1 (fr) 2009-07-30 2011-02-03 Silicon Image, Inc. Signalisation pour transitions entre modes de transmission de donnees
CN102484557A (zh) * 2009-07-30 2012-05-30 晶像股份有限公司 用于数据传输模式之间的转换的信令技术
US8458343B2 (en) 2009-07-30 2013-06-04 Silicon Image, Inc. Signaling for transitions between modes of data transmission
KR101804251B1 (ko) 2009-07-30 2017-12-04 래티스세미컨덕터코퍼레이션 데이터 송신의 모드들 사이의 전이를 위한 시그널링
US8644334B2 (en) 2009-09-30 2014-02-04 Silicon Image, Inc. Messaging to provide data link integrity
US9210206B2 (en) 2009-09-30 2015-12-08 Lattice Semiconductor Corporation Messaging to provide data link integrity

Also Published As

Publication number Publication date
AU4020601A (en) 2001-04-24
GB2370185A (en) 2002-06-19
JP2003512750A (ja) 2003-04-02
GB2370185B (en) 2003-11-19
CN1384942A (zh) 2002-12-11
GB0204099D0 (en) 2002-04-10

Similar Documents

Publication Publication Date Title
US6820049B1 (en) Data collection system
US6816480B1 (en) Data terminal apparatus
CA2493214C (fr) Systeme de telemetrie
EP1784804B1 (fr) Procede et systeme de releve de compteurs et de transfert de donnees haute vitesse
US6362745B1 (en) Method of detecting tamper of an electric meter
US6363335B1 (en) Communications bridge for circuit switched data transfer simulation
US20080025487A1 (en) Telemetry system
US7902995B2 (en) Remote meter-reading system and method using duplicated data transmission of packet data transmission and circuit data transmission
US20030110302A1 (en) Apparatus and method for bridging network messages over wireless networks
US5555241A (en) Method and apparatus for maximizing the data transmission in a wireless data communication network
CN109922160A (zh) 一种基于电力物联网的终端安全接入方法、装置及系统
TW200921053A (en) Electronic meter for networked meter reading
KR100434655B1 (ko) 원격검침 시스템
US8350718B2 (en) Secure collector diagnostic portal activation
JP3447622B2 (ja) 電力量計
WO2001022302A1 (fr) Pont de communications pour simulation de transfert de donnees a commutation de circuit
CN101330353B (zh) 远程视频无线传输系统
US7593414B2 (en) Enhanced CSU/DSU (channel service unit/data service unit) for frame relay over DSL
KR100463054B1 (ko) 저속전용회선 장치를 이용한 원격 서비스 제공 시스템
KR100610864B1 (ko) 소형류 중계기 감시 장치 및 방법
AU2007203059B2 (en) A Telemetry System
AU2003245113B2 (en) A telemetry system
CN117319444A (zh) 一种基于蓝牙网关的配电柜设备远程运维系统及方法
CN115148015A (zh) 一种智慧空开隔离终端控制系统
CN112367224A (zh) 一种终端监测装置、系统及方法

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CR CU CZ DE DK DM DZ EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
ENP Entry into the national phase

Ref country code: GB

Ref document number: 200204099

Kind code of ref document: A

Format of ref document f/p: F

ENP Entry into the national phase

Ref country code: JP

Ref document number: 2001 525595

Kind code of ref document: A

Format of ref document f/p: F

WWE Wipo information: entry into national phase

Ref document number: 008130833

Country of ref document: CN

122 Ep: pct application non-entry in european phase