Activation code path detecting method for multi-antenna association detecting system

A technology of activating the code channel and joint detection, which is applied in the field of communication, can solve the problems of small antenna spacing, complex detection algorithm, small diversity gain, etc., and achieve the effect of ensuring smooth transition and high diversity gain
CN101247159AInactive Publication Date: 2008-08-20ST ERICSSON SEMICON BEIJING
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ST ERICSSON SEMICON BEIJING
Publication Date
2008-08-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention discloses an activation code channel detecting method which is applied on the multiple-antenna combined-detecting system, and the method comprises the following steps: A. executing channel estimating window activating detection according to the multiple-antenna channel estimation after the noise threshold detection; B. executing matched filtering respectively to each antenna according to the activation detecting result of the channel estimating window, summating the symbol of same code channel of multiple-antenna at a same window position according to the result of matched filtering, and executing interference-user non-preferred code channel activation detecting according to the summated symbols; and C. executing combined detection interference eliminating to the summated symbols according to the activation detecting result of the interference-user non-preferred code channel, and executing non-preferred code channel activation detection to the symbol executed with interference elimination. The method according to the invention leads to the reducing of the demodulating threshold at the state of no increasing the band width thereby increasing the system throughout, and at the same time the coverage of the service can be increased.
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Description

technical field

[0001] The invention relates to a multi-antenna joint detection technology in the communication field, in particular to an active code channel detection method applied to a multi-antenna joint detection system. Background technique

[0002] Multi-antenna technology can effectively resist the fading of the wireless channel and improve the channel capacity of the wireless channel, and it has attracted more and more attention in the communication system. Compared with the single-antenna system, multi-antenna technology is used at the receiving end to combine the signals received on each antenna to obtain multi-antenna diversity gain and reduce the power requirement for each antenna. In the Time Division Synchronous Code Division Multiple Access (TD-SCDMA) system, the terminal adopts the multi-antenna joint detection algorithm. For high-speed services such as High-speed Packet Access (HSPA), it can improve the service throughput and reduce the demodulation thresh...

Claims

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