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Transmission method of S1 interface application protocol identification

A technology of applying protocol identification and transmission method, applied in the field of transmission of S1AP ID, can solve the problems of high error probability, affecting the normal business of users, etc., and achieve the effect of avoiding false coverage

Inactive Publication Date: 2011-09-21
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in scenarios where UE S1AP ID changes (such as handover), internal implementation problems of network elements, abnormal errors, etc., the UE S1AP ID allocated by the local end brought to the other party may change. At this time, the peer network element will There is a situation that the peer UE S1AP ID carried in the received message is inconsistent with the one saved locally. There is currently no way to deal with this situation, and the probability of error is high, and it will affect the normal business of the user.

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  • Transmission method of S1 interface application protocol identification
  • Transmission method of S1 interface application protocol identification
  • Transmission method of S1 interface application protocol identification

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Experimental program
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Embodiment Construction

[0034] Main idea of ​​the present invention is:

[0035] After the eNodeB and MME successfully establish a user's S1AP link, if the UES1AP ID allocated by the local end does not change, the subsequent S1AP messages related to the UE will no longer fill in this field, which can avoid abnormal errors in this field; If the UE S1AP ID allocated by the terminal changes, fill in the new UE S1AP ID in the message. After receiving the message from the peer network element, the eNodeB or MME judges whether the UE S1AP ID assigned by the peer is carried. If not carried, the relevant UE S1AP ID stored locally will not be modified; if carried, the locally stored one will be directly replaced. UE S1AP ID allocated by the peer.

[0036] For the case where the UE S1AP ID does not change, this field will no longer be filled in the subsequent S1AP messages related to the UE, so the reduced field has not changed, but this field occurs due to abnormal reasons such as codec errors, memory rewritin...

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Abstract

The invention discloses a method for transmitting an S1 interface application protocol mark, which avoids the inconsistence of UE S1AP ID between network elements caused by the change of the UE S1AP ID. The S1 interface is connected with an evolutive node B eNodeB and a mobile management entity (MME). The method comprises that: when the mark of the UE S1AP ID of certain user equipment on the S1 interface which is the exclusive mark distributed by a self-terminal changes, a message sent to an opposite terminal carries a newly distributed UE S1AP ID; after receiving the message sent by the self-terminal, the opposite terminal judges whether the message carries the UE S1AP ID or not distributed by the self-terminal, if yes, the opposite terminal uses the UE S1AP ID carried in the message and newly distributed by the self-terminal to replace the old UE S1AP ID saved by the opposite terminal locally.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a method for transmitting S1AP ID (S1 interface application protocol identification) in System Architecture Evolution (SAE). Background technique [0002] The 3GPP (3rd Generation Partnership Project, 3rd Generation Partnership Project) project for the next generation mobile wireless network is called System Architecture Evolution (SAE for short). SAE security architecture such as figure 1 As shown, it contains the following network elements: [0003] E-RAN (Evolved RAN): An evolved radio access network that can provide higher uplink and downlink rates, lower transmission delay and more reliable wireless transmission. A network element included in the E-RAN is an eNodeB (Evolved NodeB, evolved NodeB), which provides wireless resources for terminal access. [0004] HSS (Home Subscriber Server): Home Subscriber Server, which permanently stores user subscription data. [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W8/24H04L12/58
Inventor 丁燕菁叶敏雅刘霖
Owner ZTE CORP