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Method for detecting service chain circuit between access terminal and access network

A technology for business links and access terminals, applied in the field of communications

Inactive Publication Date: 2010-10-13
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012]1. Since service link activation detection and session activation detection have different characteristics, service link activation detection has higher real-time requirements than session activation detection. The AT call drop is detected in a very short period of time, so it is inappropriate to determine the interval time for detection based on TSMPClose / NSMPKeepAlive
[0013]2. In some practical applications, ATs of some brands do not respond to AN with a KeepAliveResponse message after receiving the KeepAliveRequest message sent by AN on the forward channel. Therefore, the Causes AN to mistest the service channel activation test, releasing the normal service connection

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  • Method for detecting service chain circuit between access terminal and access network
  • Method for detecting service chain circuit between access terminal and access network
  • Method for detecting service chain circuit between access terminal and access network

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Embodiment Construction

[0043] The present invention provides a method for detecting the service link between the access terminal and the access network. The core of the method is: use the pair of connection layer messages TrafficChannelAssignment and TrafficChannleComplete to perform the service between AT and AN Link up detection.

[0044] In the Cdma20001×EV-DO system, the TrafficChannelAssignment message is used for active set update in soft handover, and the current active set information is carried in this message. According to the agreement, when AT receives the TrafficChannelAssignment message sent by AN, AT should return TrafficChannelComplete message to AN as a response, and the value of MessageSequence (message sequence number) in TrafficChannelComplete message is the same as the value of MessageSequence in TrafficChannelAssignment message.

[0045] According to the characteristics of the above TrafficChannelAssignment and TrafficChannleComplete messages, the present invention utilizes the...

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Abstract

The invention relates to a method for detecting the service chain circuit between AT (access terminal) and AN (access network), which comprises: AN sends Traffic Channel Assignment (service channel distribution) message to AT; AN, based on whether receiving the service data flow or Traffic Channel Complete (service channel distribution completion) from AT via service chain circuit, assures the condition of service chain circuit between AT and AN.

Description

technical field [0001] The invention relates to the communication field, in particular to a method for detecting a service link between an access terminal and an access network. Background technique [0002] In the Cdma20001×EV-DO (Code Division Multiple Access 2000 Enhanced Data Transmission) system, when the AT (access terminal) needs to perform data transmission, it establishes an air interface data connection with the AN (access network). For the service channel between ANs, the AN allocates resources for the service channel, and then, the AT and the AN use the allocated resources to transmit data to each other on the established service channel. [0003] When due to various complicated wireless environments and other reasons, the AT has dropped calls. If the AN does not detect that the AT has dropped the call at this time, but still maintains a data connection with the AT, and still allocates resources for the AT, resources of the AN will be wasted. Therefore, how to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06
Inventor 吕莎刘洋
Owner HUAWEI TECH CO LTD