Mobile terminal access method, base station and access system

Abstract

The invention discloses a mobile terminal access method, which comprises the following steps of: judging whether a terminal identifier of a mobile terminal which currently requests access and has been allocated with a stand-alone dedicated control channel SDCCH is positioned the saved backlist database, if so, refusing the access request initiated by the mobile terminal, otherwise, authenticatingthe mobile terminal; and if the authentication fails, refusing the access request initiated by the mobile terminal, and if the authentication succeeds, accepting the access request initiated by the mobile terminal. The invention also discloses a base station and an access system. Through the invention, network resources can be saved.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a mobile terminal access method, a base station and an access system. Background technique [0002] When a mobile terminal (Mobile Station, MS) initiates a service application to the network, it first initiates a request on the random access channel (Random Access Channel, RACH), and dynamically sends a random access pulse to a base station (Base Transceiver) on the RACH. Station, BTS) initiates a channel request message to apply for a channel. The reason for channel application is included in the channel request message, which may be "response to paging", "emergency call", "mobile calling", "short message service", or other services, such as "location update", and so on. In addition, the channel request message also includes a random parameter for distinguishing different MSs. For example, when the MS randomly selects 5 bits as the random parameter, it can distin...

AI Technical Summary

Problems solved by technology

[0029] If the MS authentication fails, the network will send an authentication failure message to the MS through the BTS, and release the allocated SDCCH channel, and the MS will no longer initiate access requests within a certain period of time. Initiate an access request

[0030] When a disaster occurs, a large number of MSs will initiate access requests on the same high-altitude base station. When there is an idle SDCCH, the high-altitude base station will allocate an SDCCH for each MS. Users on other networks or users whose roaming is prohibited on this network will be rejected during authentication. , after the T3122 timeout, the rejected user will continue to initiate the request. This repeated attempt is prone to SDCCH congestion and the traffic channel (Traffic Channel, TCH) is idle, which may cause the signal to be unreachable and increase the burden on the network

[0031] Furthermore, from allocating SDCCH to MS to rejecting MS's access request after MSC authentication fails, this process needs to occupy ABIS and A interface resources, and requires processing time, which also increases the burden on the network

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