Mobile station network access method, wireless communication system, mobile-relay station as well as base station

Abstract

The embodiment of the invention discloses three MS network access methods, a wireless communication system, a mobile relay station and a base station. In the first one, MRS and BS distribute CIDs to MS respectively, MRS establishes the mapping relation between two sets of CIDs, MRS transfers mutual information between BS and MS according to the mapping relation, BS updates group information according to the information sent by MRS. In the second one, MRS is connected with BS through a tunnel, MRS distributes CIDs to MS, MRS exchanges information with BS through a tunnel therebetween in a network access flow, BS updates group information according to the information sent by MRS. In the third one, information exchange of the network access flow between MS and MRS is realized, BS is only used for maintaining group information and completing information exchange between MRS and a gateway of an access service network. The methods, the wireless communication system, the mobile relay station and the base station of the invention can reduce air interface signaling spending during the group moving handover process.

Description

technical field [0001] The invention relates to wireless communication technology, in particular to a mobile station (MS) network access method, a wireless communication system, a mobile relay station and a base station. Background technique [0002] In order to meet the increasing demand for broadband wireless communication, higher and higher carrier frequencies are used in new protocols and systems. However, the attenuation of radio waves increases with the increase of frequency. Therefore, high carrier frequencies must face the problem of high attenuation, which further limits the coverage of base stations. In order to solve the coverage problem of the base station, it is usually necessary to use a relay station (RS) to enhance the wireless communication signal between the base station (BS) and the mobile station (MS). There is no need for wired transmission between the RS and the BS, and only communicates through wireless links, so it has the advantages of low network d...

AI Technical Summary

Problems solved by technology

In the group mobility scenario, according to the existing connection identification (CIDs) management method in the process of MS network access, when the RS performs handover, all MSs under it also perform handover, and all MSs perform handover almost simultaneously, access links and The CIDs of the trunk link must be replaced, which will increase the signaling overhead, cause a large number of conflicts in the air interface access synchronization process, bring a huge impact on the processing of network equipment, and may even cause network paralysis

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