Method of switching terminal between base station

Abstract

This invention provides a method for switching terminals among base stations including: after the switch is triggered, a service BS sends a piece of pre-informed information to the adjacent BS including the basic needed information of the being switched terminal MSS, after the adjacent BS receives the pre-informed information, it confirms the normal switch time of the MSS and assigns the quick accessed up resource for the MSS and informs it to the MSS, which receives the up resource assigned information sent by a preset final target BS from the adjacent BS to send information to said final target BS to access initially, in which, the target BS determines the normal switch time and assigns fast ranging IE for the MSS when the time is up so that the target BS can assign fast ranging IE in definite time for the MSS to realize quick switch of terminals.

Description

technical field [0001] The present invention relates to the technical field of broadband wireless access, and more precisely relates to a method for a terminal (MSS) to switch between base stations (BS). Background technique [0002] The IEEE802.16 protocol defines the fixed broadband wireless access (BWA) wireless metropolitan area network standard, which defines different physical layer technologies for different frequency bands. The scope of application of this standard is mainly for residential, small office / home office (SOHO), teleworkers and small business users (SME) markets. [0003] In the IEEE802.16 protocol, the message interaction process of the air interface when the MSS switches between BSs is described, such as figure 1 shown, including the following steps: [0004] Step 101, MSS sends a terminal handover request (MOB_MSSHO_REQ) message to the serving BS, and the message includes possible target BSs, assuming BS2 and BS3, and the time for handover. [0005]...

AI Technical Summary

Problems solved by technology

In general, the uplink search resource assigned by the target BS through the UL_MAP message is a common access resource area, that is to say, each newly accessed terminal sends an access request to the base station in this resource area, so if switching to The terminal of the target base station cannot compete with other newly accessed terminals, which will cause the handover time to be prolonged

Therefore, it is also proposed in the IEEE802.16 protocol that in order to speed up the handover process, the target BS can assign fast access uplink resources (Fast RangingIE) to the MSS that needs to be handed over, but the IEEE802.16 protocol does not specify the target base station When to assign the FastRanging IE, so fast switching of terminals cannot be realized

also, figure 1 The process in the document does not give how to exchange information between the serving BS and the target BS in order to complete the handover, including when and what information to exchange

Moreover, in the prior art, only a method of initiating handover by the terminal is provided, and the triggering method of the handover is single

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