Method for reducing switching frequency of micro base station and macro base station during cooperative work

A technology of cooperative work and switching frequency, applied in the direction of electrical components, wireless communication, etc., can solve the problems of complex switching process and shorten the working time of CoMP, and achieve the effect of simple switching process, avoiding frequent switching, and effective collaborative work

Active Publication Date: 2014-12-10
SUZHOU WEIZHAN COMM TECH
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Problems solved by technology

[0004] At present, in the handover area, the user will first consider the handover and disable the cooperative work of the two cells. After the handov

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  • Method for reducing switching frequency of micro base station and macro base station during cooperative work
  • Method for reducing switching frequency of micro base station and macro base station during cooperative work
  • Method for reducing switching frequency of micro base station and macro base station during cooperative work

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[0017] The specific embodiments of the present invention will be further described below in conjunction with the drawings and embodiments. The following embodiments are only used to illustrate the technical solutions of the present invention more clearly, and cannot be used to limit the protection scope of the present invention.

[0018] The technical scheme of the present invention is:

[0019] Suppose that user 1 resides in macro cell A, user 2 is in micro cell B, and both users are in figure 1 Within the CoMP area shown. The specific working process of the present invention is:

[0020] 1: First turn on the PDCCH power increase function in the CoMP area.

[0021] 2: Modify the parameter configuration of the A3 event, and use the a3-Offset defined in reportConfigEUTRA for CoMP measurement and cell handover, as shown in figure 2 Shown. Modify the A3 event of measuring CoMP and measuring cell handover in the measurement configuration message ((a3-Offset is defined in reportConfigEU...

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Abstract

The invention discloses a method for reducing a switching frequency of a micro base station and a macro base station during cooperative work. The method comprises the steps of continuously receiving a CoMP measurement report and a cell switching measurement report of a user device when the user device goes into the CoMP region of a macro base station cell and the micro base station; prohibiting cell switching and appropriately increasing the transmission power of the PDCCH of the cell where the user device stays when a CoMP measured value satisfies a CoMP cooperative work condition, and determining whether cell switching is performed according to the cell switching measurement report of the user device when the CoMP measured value does not satisfy the CoMP cooperative work condition. The method for reducing the switching frequency of the micro base station and the macro base station during cooperative work has the advantages that the switching region is lagged beyond the CoMP region so that the cooperative work region and the switching region do not affect each other, and therefore, the cooperative work is more effectively and the switching flow becomes simpler, and meanwhile, the switching region is shifted beyond the cooperative work region so that the problem of frequent switching due to moving back and forth at the switching region also can be solved.

Description

technical field [0001] The present invention relates to a method for reducing the switching frequency when a micro base station and a macro base station work together, and specifically relates to a method for reducing the switching frequency of an LTE small base station and a macro base station in a CoMP working mode. Background technique [0002] LTE version 11 introduces CoMP, a collaborative cell technology, which is a key technology in the LTE Adavance system. This technology is of great significance for the collaborative work of micro base stations and macro base stations, and is a key technology for micro cells. [0003] CoMP scheduling requires users to report periodic measurements. CoMP will be enabled only when the signal quality of users in both cells meets certain requirements. We call the area that meets this condition a collaborative work area. When B moves, the signal quality of the user in cell A gradually weakens, and the signal quality of cell B gradually in...

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Application Information

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IPC IPC(8): H04W36/30
Inventor 刘泽王勇王敬人
Owner SUZHOU WEIZHAN COMM TECH
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