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Method and apparatus for eliminating interference between adjacent cells

A technology of adjacent cells and current cells, applied in the field of communication, can solve the problem that the user equipment cannot eliminate the interference of adjacent cells, and achieve the effects of increasing channel capacity, improving data transmission quality, and improving quantitative transmission quality.

Active Publication Date: 2008-01-02
SHANGHAI ULTIMATE POWER COMM TECH
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Problems solved by technology

[0013] The present invention provides a method and device for eliminating the interference of adjacent cells, which are used to solve the problem that in the prior art, the user equipment in the cell can only know the midamble configuration information of the serving cell, and thus the user equipment cannot eliminate the interference of adjacent cells

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  • Method and apparatus for eliminating interference between adjacent cells
  • Method and apparatus for eliminating interference between adjacent cells
  • Method and apparatus for eliminating interference between adjacent cells

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Embodiment Construction

[0042] In order to solve the problem that the user equipment UE can only know the midamble configuration information of the serving cell in the prior art, and thus the user equipment cannot eliminate the interference of adjacent cells, the present invention notifies the UE of the midamble configuration information of the adjacent cell, and the UE The joint detection technology is used to eliminate the interference from adjacent cells.

[0043]This embodiment takes a Time Division Synchronization Code Division Multiple Access (TD-SCDMA, Time Division Synchronization Code Division Multiple Access) system as an example to describe the present invention in detail.

[0044] The joint detection technology used in the TD-SCDMA system is based on the traditional detection technology, making full use of all user signals and their multipath prior information that cause MAI (Multiple Access Interference, Multiple Access Interference) interference, and the user The signal separation is co...

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Abstract

The invention discloses a method for eliminating the interference of nearby regions, wherein user device UE obtains the midamble setting information of each nearby region, while the information comprises midamble shift distributing method and midamble setting parameter K, the UE according to the midabmle setting parameter K for each nearby region which midabmle shift distributing method is default obtains the relation between the midabmle shift and channel code of nearby regions, and the UE according to the relation checks relative nearby regions to obtain signal evaluation, via which to eliminate the interference of nearby regions. The invention also discloses a communicator and a TDD-CDMA communication system.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and a device for eliminating interference of adjacent cells in a time division duplex code division multiple access system. Background technique [0002] In the Time Division Duplex Code Division Multiple Access (TDD-CDMA, Time Division Duplex Code Division Multiple Access) system, the air interface uses the TDMA (Time Division Multiple Access, Time Division Multiple Access) / CDMA multiple access method , usually using time slots and spreading codes to distinguish wireless resources. [0003] In the TD-SCDMA system, its system structure frame is shown in Figure 1. Each subframe consists of 10 time slots (TS), of which 7 time slots can be used for data transmission, and the remaining 3 time slots are used for timing synchronization. In one time slot, multiple bursts can be sent at the same time, and the burst structure is shown in FIG. 2 . The burst structure incl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/26H04B1/10H04J13/02H04B7/005
Inventor 胡金玲王映民任世岩王大润胡文成
Owner SHANGHAI ULTIMATE POWER COMM TECH
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