Method for maintaining status synchronization between protocol layers in command stream in service stream

Abstract

A state synchronization method between the protocol layers in the serving stream maintenance signaling flow, for using to establish or modify flow of the service stream: the CPS layer of the initiative side constructs responding information and sends to the receiving side, the CPS layer of the receiving side get the responding information and sends a primitive language information to the CS layer of the receiving side; the SC layer gets the primitive language information, determines the establishment of the service stream of the finish of the modify flow. For establishing the service stream or modifying stream when there is the unusual situation: the CPS layer of the unusual side initiates a primitive language information of the service stream to inform its CS layer by a primitive language information; the CS layer gets the primitive language information and initiates the deleting flow of the service stream. Another method for the unusual situation is: the CPS layer of the unusual side informs its CS layer by primitive language information, and the CPS layer starts the deleting flow of the service stream after getting the responding information of the CS layer. The invention can avoid the fail of the data transmitting mutually that leads by the different situation of the CS layer and the CPS layer.

Description

technical field [0001] The invention relates to the technical field of wireless access, in particular to a method for state synchronization between protocol layers in the flow of service flow maintenance signaling. Background technique [0002] The IEEE 802.16 wireless access standard defines a connection-based centralized resource allocation and scheduling method. In this manner, the allocation of wireless air interface bandwidth resources is centrally controlled by a base station (BS, Base Station). Moreover, bandwidth allocation is based on connection, and connection is the basis for 802.16 system to allocate and schedule bandwidth resources. Service data of each mobile station (MSS, Mobile Subscribe Station) must be mapped to a specific connection, and each activated connection is identified by a unique connection identifier (CID, Connection Identifier). In the 802.16 standard, a connection is also called a service flow (SF, Service Flow). Likewise, each service flow i...

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Problems solved by technology

[0024] At present, in practical applications, it is found that during the establishment and modification of the service flow, and when the service flow is deleted when the signaling process of the service flow is abnormal, there will be out-of-synchronization between the CS layer and the CPS, that is, the CS layer Inconsistency with the state of the CPS layer leads to data transmission failure

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