WO2007085179A1 - Procédé et système pour mettre en oeuvre un service de rappel automatique d'urgence, et centre de commutation mobile - Google Patents

Procédé et système pour mettre en oeuvre un service de rappel automatique d'urgence, et centre de commutation mobile Download PDF

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Publication number
WO2007085179A1
WO2007085179A1 PCT/CN2007/000155 CN2007000155W WO2007085179A1 WO 2007085179 A1 WO2007085179 A1 WO 2007085179A1 CN 2007000155 W CN2007000155 W CN 2007000155W WO 2007085179 A1 WO2007085179 A1 WO 2007085179A1
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WO
WIPO (PCT)
Prior art keywords
callback
mobile
mobile terminal
extended
switching center
Prior art date
Application number
PCT/CN2007/000155
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English (en)
Chinese (zh)
Inventor
Fengshao Zou
Original Assignee
Huawei Technologies Co., Ltd.
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 Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2007085179A1 publication Critical patent/WO2007085179A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/50—Connection management for emergency connections

Definitions

  • the present invention relates to the field of communications, and more particularly to an emergency call back call method, system, and mobile switching center.
  • a mobile user can use a mobile terminal to call a specific number (such as 110/119/120 in China, 911 in the United States) via a wireless network, and contact an emergency rescue center. Even if the mobile terminal is a clone terminal, an unserviced terminal (green machine), an unplugged terminal, an arrears terminal, etc., the wireless network will unconditionally send the call to the emergency rescue center. However, after the mobile terminal asks for help from the emergency rescue center, the emergency rescue center needs to call back the mobile user because the location description is unclear.
  • E911 Enhanced Wireless 9-1-1 service
  • emergency call flow In the MS (Mobile Station, mobile station or mobile terminal) through the emergency call request message (Emergency Service Invocation
  • the serving MSC Mobile Switch Center
  • PSAP Public Safety Answering Point
  • the ESRD uniquely identifies a specific base station, cell or sector information; the S/R can select the nearest PSAP; the Callback number is used by the PSAP to call back the calling party.
  • the communication between the MS and the MS is then established by the PSAP.
  • the existing PSAP callback uses the mobile terminal MDN (Mobile Directory Number) to call back the calling mobile terminal, which is exactly the same as the normal called process, without any restrictions, and can still find the user when roaming to other networks. , as shown in picture 2. and also
  • a callback mode is a two-segment dialing mode to call back the calling mobile terminal: first call the roaming port number of the service system, and then dial the MDN. Since the call directly to the calling user service system, the system does not need to find the called route and directly obtain the user paging information.
  • the above-mentioned callback method requires the mobile terminal to be a legitimate user of the wireless network, that is, the mobile terminal must have a wireless network service and no arrears. That is, the callback of the emergency call is exactly the same as the normal incoming call processing, and the switching system does not need to know whether the call is initiated by the PSAP. If the emergency call originates the mobile terminal as an illegal user, there may be no MDN, or even if there is an MDN, the callback will fail due to arrears, restricted calls, and the like. The emergency rescue center may not be able to find the mobile terminal and thus cannot help the user, resulting in loss of the user's life or property.
  • Embodiments of the present invention provide a new method and system for implementing an emergency call back call, and a mobile switching center to enable a public security answering point to call back an illegal mobile terminal or a restricted mobile terminal.
  • a method for implementing an emergency call back call includes the following steps:
  • the serving mobile switching center receives the emergency call request from the mobile terminal, setting an extended callback number, sending the extended callback number to the public safety answering point, and establishing an identification number for identifying the mobile terminal;
  • the public safety answering point dials the extended callback number to the serving mobile switching center; after determining that the calling party is the call back of the emergency call, the serving mobile switching center determines the paging type according to the extension number and the identification number in the extended callback number. And the user to be called, initiate a page.
  • An emergency call returning system comprising a service mobile switching center, a public safety answering point, and a routing device connecting the mobile switching center and a public safety answering point, the serving mobile switching center, configured to receive from a mobile terminal
  • an extended callback number is set, and the extended callback number is sent to the public security via the routing device.
  • the extended callback number includes an extension number for identifying a callback number type and an identification number for identifying the mobile terminal; or, for receiving a callback from the public safety answering point, determining After the caller is the callback of the emergency call, the paging type and the to-be-called user are determined according to the extension number and the identification number in the extended callback number, and the paging is initiated; the public safety answering point is used to receive the user terminal initiated by the user terminal. An emergency call, or a call back to initiate an emergency call.
  • a service mobile switching center includes a callback number generation module, a paging information acquisition module, and a callback module, where
  • the callback number generating module is configured to generate an extended callback number including an extension number and a mobile terminal identification number when receiving an emergency call request from the mobile terminal;
  • the paging information obtaining module is configured to acquire a callback type and a callback mobile terminal identification number according to the extended callback number when the public safety answering point calls back, according to the callback type and the to-be-called type Calling back the mobile terminal identification number to obtain paging information;
  • the callback module is configured to initiate paging to the mobile terminal according to the paging information.
  • the emergency callback is no longer limited by whether the terminal itself is illegal or restricted, that is, even an illegal mobile terminal or a restricted mobile terminal can receive a reply from a public safety answering point, that is, an emergency call center.
  • the call makes the emergency rescue system achieve a more complete callback function and improves the service quality of the emergency service.
  • FIG. 1 is a schematic diagram of an existing emergency call setup
  • FIG. 2 is a schematic diagram of an existing emergency call back call
  • FIG. 3 is a flow chart of setting an extended callback number according to an embodiment of the present invention
  • FIG. 4 is a schematic flowchart of a mobile terminal performing an emergency call and implementing a callback according to an embodiment of the invention
  • FIG. 5 is a flowchart of implementing a callback according to an embodiment of the present invention.
  • a Mobile Switch Center routes an emergency call number through a Selective Router (S/R) when a mobile terminal (MS) sends an emergency call request.
  • S/R Selective Router
  • ES Routing Digits, ESRD and the extended callback number are sent to the Public Safety Answering Point (PSAP), and the extended callback number includes an extension number for identifying the type of the callback number and an identifier for identifying the mobile terminal. number.
  • Step S31 The serving mobile switching center receives an emergency call request from the mobile terminal.
  • Step S32 The serving mobile switching center determines whether the mobile terminal is a legitimate user, that is, determines whether the mobile terminal is a legitimate mobile terminal that has opened the service and has not owed a fee.
  • step S34 is executed, the extension number is set to the mobile number (MDN), and the identification number is set as the mobile number; if the mobile terminal is not a legitimate user, for example, the service user is not activated, If the user of the machine or the user is in arrears, the process proceeds to step S33 to further determine whether the International Mobile Subscriber Identity (IMSI) of the mobile terminal is valid.
  • IMSI International Mobile Subscriber Identity
  • step S35 the extension number is set to the international mobile number type, and the identification number is set to the international mobile number; if the international mobile subscriber identity of the mobile terminal is invalid, step S36 is performed, The extension number is set to the Electronic Serial Number (ESN) type and the identification number is set to the electronic serial number of the mobile terminal.
  • ESN Electronic Serial Number
  • the extended callback number may indicate the type of the callback number by adding a BCD before the identification number, that is, the actually applied callback number, for example, 0 indicates an MDN type, 1 indicates an IMSI type, and 2 indicates an ESN type; After that, it is the corresponding callback number; for ESN, since its number type is long, it needs to be converted to BCD code format.
  • FIG. 4 it is a schematic flowchart of a mobile terminal performing an emergency call and implementing a callback according to an embodiment of the present invention.
  • the calling mobile terminal is called back by using two-segment dialing mode: first call the roaming port number of the serving MSC, and then dial the extended call back number.
  • the specific implementation process is as follows:
  • the MS initiates an emergency call through the monthly MSC to establish a connection with the PSAP. After the call is released, the PSAP needs to contact the caller of the emergency service, and then obtains and dials the roaming port number of the corresponding monthly service MSC according to the ESRD in the emergency call.
  • the service MSC After the service MSC answers, it prompts the PSAP to enter the caller ID.
  • the PSAP dials an extended callback number to the serving MSC, and the extended callback number includes a number type and an identification number for identifying the mobile terminal.
  • the serving MSC determines that the calling party is a PSAP, that is, a call back of an emergency call initiated by an emergency rescue center or the like, and determines the paging type and the to-be-called user according to the extension number and the identification number in the extended call back number, and initiates paging. At this time, the MSC does not need to judge whether the called terminal, that is, the user terminal has the terminating call authority, and does not perform any authentication on the user terminal.
  • Step S51 The public safety answering point obtains the roaming port number of the corresponding serving mobile switching center according to the emergency call routing number, and dials the service mobile switching center. Roaming port number.
  • Step S52 The public safety answering point dials the extended call back number to the serving mobile switching center.
  • Step S53 The serving mobile switching center determines that the calling party is a PSAP, that is, the call back of the emergency call initiated by the emergency rescue center or the like, and determines the paging type and the user to be called according to the extension number and the identification number in the extended callback number. And initiate a page.
  • the MSC does not need to determine whether the called terminal has the terminal call authority and does not perform any authentication on the user terminal.
  • the process of determining the paging type and the user to be called and initiating the paging is as follows:
  • the serving mobile switching center determines that the extension number in the extended callback number is the mobile number type, the mobile number is obtained from the extended callback number and the user paging information is obtained according to the mobile number for paging. At this point, you can use the mobile number to directly call back, that is, the call mode is the same as the normal call, or you can use the first call service system to roam. The port number is then called back by the serving MSC to call the user terminal.
  • the serving mobile switching center determines that the extension number in the extended callback number is an international mobile subscriber identity type, obtain an international mobile subscriber identity from the extended callback number and determine whether the international mobile subscriber identity is stored in the serving mobile switching center;
  • the international mobile subscriber identity is already stored in the serving mobile switching center, and the serving mobile switching center obtains paging information according to the international mobile subscriber identity and uses the international mobile subscriber identity for paging; if the international mobile subscriber identity is not stored in the service mobile exchange At the center, the international mobile subscriber identity is used for page-wide paging.
  • the serving mobile switching center determines that the extension number in the extended callback number is stored in the serving mobile switching center; if the electronic serial number is already stored in the serving mobile switching center, the serving mobile switching center obtains the paging according to the electronic serial number. The information is also paged using the electronic serial number; if the electronic serial number is not stored in the serving mobile switching center, the electronic serial number is used for page-wide paging. Before paging, the electronic serial number in BCD format needs to be converted to long integer.
  • the present invention also provides a system for implementing an emergency call back call, including a service mobile switching center, a public safety answering point, and a connection between the mobile switching center and a public safety answering point. Routing device.
  • the service mobile switching center when receiving an emergency call request from the mobile terminal, sets an extended callback number, and sends the extended callback number to the public safety answering point via the routing device to establish an emergency call;
  • the extended callback number includes And an extension number for identifying the type of the callback number and an identification number for identifying the mobile terminal; or, for receiving a callback from the public safety answering point, determining that the caller is a callback for the emergency call, according to the extended callback number
  • the extension number and the identification number determine the paging type and the to-be-called user, initiate paging; the public safety answering point is used to receive an emergency call initiated by the user terminal, or to initiate a call back of the emergency call.
  • the present invention also provides a mobile switching center.
  • the serving mobile switching center 61 includes a call back number generating module 62 and a paging information obtaining module 63 and a call back module 64.
  • the callback number generating module 62 is configured to generate an extended callback number including an extension number and a mobile terminal identification number when receiving an emergency call request from the mobile terminal, where the paging information obtaining module 63 is configured to return at the public safety answering point.
  • the call-time extension callback number obtains the callback type and the mobile terminal identification number to be called back, and obtains paging information according to the callback type and the mobile terminal identification number to be called back.
  • the callback module 64 is configured to initiate paging to the mobile terminal according to the paging information.
  • the call back number generation module 62 determines whether the mobile terminal is a legitimate user when the serving mobile switching center 61 receives the emergency call request from the mobile terminal, that is, whether the mobile terminal is a mobile terminal that is provisioned and not owed. If the mobile terminal is a legitimate user, the callback number generation module sets the extension number to the mobile number (MDN) type, and sets the corresponding identification number as the mobile number; if the mobile terminal is not a legitimate user (for example, the service user is activated) The bare metal user, the arrears user, etc., further determine whether the mobile terminal's International Mobile Subscriber Identity (IMSI) is valid.
  • IMSI International Mobile Subscriber Identity
  • the callback number generation module sets the extension number to the international mobile number type and sets the identification number as the international mobile number; if the international mobile subscriber identity of the mobile terminal is invalid, the callback number generation The module sets the type of the extension number to an Electronic Serial Number (ESN) type and sets the corresponding identification number to the electronic serial number of the mobile terminal.
  • ESN Electronic Serial Number
  • the paging information obtaining module 63 determines the callback type according to the extension number in the extended callback number when the public security answering point calls back, and obtains the mobile terminal from the extended callback number when determining that the extended callback number is the mobile number type. And obtaining the user paging information according to the mobile number; when determining that the extension number identification type in the extended callback number is an international mobile subscriber identity type, obtaining an international mobile subscriber identity from the extended callback number, and according to the international mobile subscriber identity Obtaining paging information; when determining that the extension number identification type in the extended callback number is an electronic serial number type, obtaining an electronic serial number from the extended callback number, and acquiring paging information according to the electronic serial number.
  • the callback module 64 initiates paging to the mobile terminal according to the paging information, and the paging may be a direct paging or a full network paging.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Management (AREA)
  • Environmental & Geological Engineering (AREA)
  • Public Health (AREA)
  • Telephonic Communication Services (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé et un système pour mettre en oeuvre un service de rappel automatique d'urgence, qui comprennent essentiellement: un centre de commutation du service mobile (MSC) qui envoie un numéro rallongé de rappel automatique à un point de réponse de sécurité publique (PSAP) lorsqu'un terminal mobile envoie une demande d'appel d'urgence, ledit numéro comprenant un numéro rallongé servant à signaliser le type de numéro de rappel automatique ainsi que le numéro du terminal mobile. L'invention concerne aussi un MSC. L'invention permet à un système de secours d'urgence de mettre en oeuvre une fonction de rappel automatique améliorée en distinguant différents types différents de terminaux mobiles, ce qui permet d'améliorer la qualité d'ES.
PCT/CN2007/000155 2006-01-24 2007-01-16 Procédé et système pour mettre en oeuvre un service de rappel automatique d'urgence, et centre de commutation mobile WO2007085179A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200610033391.2 2006-01-24
CN200610033391A CN1878401B (zh) 2006-01-24 2006-01-24 移动终端紧急呼叫回呼方法及系统

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WO2007085179A1 true WO2007085179A1 (fr) 2007-08-02

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CN102440014A (zh) * 2011-04-19 2012-05-02 华为技术有限公司 一种紧急呼叫回呼方法、装置和系统
CN102868833A (zh) * 2012-08-17 2013-01-09 广东世纪网通信设备有限公司 一种追呼诈骗电话的方法、装置以及系统

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CN101296505A (zh) * 2007-04-24 2008-10-29 华为技术有限公司 实现紧急回呼的方法及系统、用户服务器和呼叫控制装置
CN101772968B (zh) * 2007-06-08 2013-02-06 捷讯研究有限公司 在对涉及移动通信设备的已断开紧急呼叫和其它通信进行处理中使用的方法和装置、以及所述移动通信设备的远程监控
CN101924995A (zh) * 2010-08-30 2010-12-22 华为技术有限公司 紧急呼叫业务中的回呼方法及装置、拜访移动交换中心
CN102098718B (zh) * 2011-01-07 2013-09-25 大唐移动通信设备有限公司 一种统计小区寻呼失败次数的方法和装置
CN102307336B (zh) * 2011-08-24 2014-02-05 江苏科技大学 移动通信系统中特种业务号码主叫停机手机的方法
CN107113585B (zh) * 2015-11-13 2019-10-25 华为技术有限公司 一种建立呼叫的方法及设备
CN115150761B (zh) * 2022-05-16 2024-09-27 锐凌无线有限责任公司 紧急呼叫回拨建立方法、装置、设备及存储介质

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CN1612500A (zh) * 2003-10-30 2005-05-04 三星电子株式会社 用于在紧急状况期间在移动台中连接呼叫的方法
EP1610583A1 (fr) * 2004-06-24 2005-12-28 Lucent Technologies Inc. Procédé pour fournir un numéro de rappel unique pour les appels sans fil au 9-1-1

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CN102440014A (zh) * 2011-04-19 2012-05-02 华为技术有限公司 一种紧急呼叫回呼方法、装置和系统
CN102440014B (zh) * 2011-04-19 2014-01-01 华为技术有限公司 一种紧急呼叫回呼方法、装置和系统
CN102868833A (zh) * 2012-08-17 2013-01-09 广东世纪网通信设备有限公司 一种追呼诈骗电话的方法、装置以及系统

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CN1878401B (zh) 2010-05-12

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