Emergency bearing-establishing method and communication system for emergency call service

An emergency call and emergency bearer technology, applied in emergency/dangerous communication services, wireless communication, wireless communication services, etc., can solve problems such as failure to provide relevant solutions, user personal or property damage, and difficulty in carrying out emergency call services , to recover the loss

Active Publication Date: 2009-09-23
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Regarding how to carry out the emergency call service in the PS domain, the existing technology can use the default bearer established by the UE in the PS domain attachment process to provide the emergency call service, or use the dedicated bearer in the IP-CAN network to establish an emergency bearer, etc., and How to establish an emergency bearer in the PS domain, the existing specifications have not yet provided relevant solutions. Furthermore, for registered users who have attached to the PS domain, if the resources occupied by them reach the subscription limit, and the user expects to Carry out emergency call services, but due to the limited resources that can be occupied, it will be difficult to carry out emergency call services, which may cause personal or property damage to users

Method used

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  • Emergency bearing-establishing method and communication system for emergency call service
  • Emergency bearing-establishing method and communication system for emergency call service
  • Emergency bearing-establishing method and communication system for emergency call service

Examples

Experimental program
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Embodiment 1

[0067] Based on the existing PDN connection release process, the emergency bearer establishment process is performed. It is assumed that multiple PDN connections are established between the UE and the network side, and the UE has the ability to choose to release a certain PDN connection. In the first embodiment, the IP-CAN network is EPS, the mobility management node is MME, and the wireless access control The device is an eNB.

[0068] see image 3 , image 3 It is a flow chart of realizing the user emergency call service in the PS domain in the first embodiment, and the process includes the following steps:

[0069] Step 301, the UE sends a PDN connection release request (PDNDisconnection Request) message to the MME through the eNB, and the release request message carries an emergency call request message.

[0070] The PDN connection release request message in step 301 also includes the UE identifier and the default bearer identifier (LBI) of a PDN connection requested to...

Embodiment 2

[0106] In the second embodiment, the IP-CAN network is a GPRS network, the mobile management node is an SGSN, and the wireless access control device is a RAN, see Figure 4 , Figure 4 It is a flow chart of realizing the user emergency call service in the PS domain in the second embodiment, and the flow may include the following steps:

[0107] Step 401, the UE sends a PDN connection release request message to the SGSN through the RAN, that is, a Deactivate PDP Context Request (Deactivate PDP Context Request) message, and the Deactivate PDP Context Request message carries an emergency call request message, that is, an emergency PDP Context is activated request message.

[0108] The deactivation PDP context request message may also include the UE identifier, the deactivation PDP context identifier (Linked NSAPI), and may further include a deactivation message interaction identifier (TI), a deactivation reason, etc., and the deactivation reason may be indicated for establishing...

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Abstract

The invention provides an emergency bearing-establishing method for emergency call service. The method comprises the following steps that: after IP-CAN receives an emergency-call request message sent by UE, partial or all resources occupied by PDN connection belonging to the UE are released; the emergency-call request message carries a UE identifier and an emergency-call number; the IP-CAN establishes a bearing path for the emergency bearing the UE and a PDN network providing the emergency call service corresponding to the emergency-call number, and allocates the released resources to the emergency bearing; and the emergency bearing is used for bearing service data of the emergency call service. The invention also provides a communication system. The technical proposal of the invention realizes the emergency call service of users under the circumstance that the resources occupied by the users are limited.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to an emergency bearer establishment method and communication system for emergency call services. Background technique [0002] The emergency call service is mainly used to give priority to occupying resources when a user encounters a difficult situation such as a man-made attack, fire, disease outbreak, etc., and to send an emergency call to the event-related processing unit, so that the user can get in touch with the relevant unit as soon as possible and obtain Rescue. [0003] In the 3rd Generation Partnership Project (3GPP) system, the network side provides emergency call services for users in the Circuit Switched (CS) domain. The continuous development of communication technology promotes the continuous evolution of the communication system architecture. Communication services based on the CS domain are gradually replaced by communication services based on the Pac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/22H04W8/26H04W76/02H04W76/06H04W4/90
Inventor 习建德徐晖
Owner DATANG MOBILE COMM EQUIP CO LTD
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