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Method for detecting shift sequence under lack of distribution mode

A distribution method and sequence detection technology, applied in electrical components, transmission systems, etc., can solve problems such as imperfect use of known information and inaccurate detection and displacement training systems.

Active Publication Date: 2008-05-28
XUANPU INDUSTRY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conventional detection algorithm does not use the known information of the target user perfectly, and cannot accurately detect the information of the shift training system of the system, so it is necessary to effectively use all possible information assigned to the target user by the system at this time

Method used

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  • Method for detecting shift sequence under lack of distribution mode
  • Method for detecting shift sequence under lack of distribution mode
  • Method for detecting shift sequence under lack of distribution mode

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Embodiment Construction

[0080] The following pass Figure 2 ~ Figure 6 , to introduce specific embodiments of the present invention in detail, so as to further understand the content of the present invention.

[0081] Such as figure 2 As shown, the present invention provides a method for shift sequence detection under the default allocation mode in a time division synchronous code division multiple access system, which comprises the following steps:

[0082] Step 1, calculate average noise power and noise threshold, in order to calculate average noise power, and produce the detection threshold Thr of discontinuous reception DTX ;Such as image 3 As shown, this step 1 also specifically includes the following steps:

[0083] Step 1.1, calculate the average noise power:

[0084] According to the noise position information calculated in the previous frame, calculate the average noise power P in this frame by calculating the average value of the noise power at the noise position noise :

[0085] ...

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Abstract

Said invention provides shift sequential detection method of default distribution mode. It contains calculating average noise power and noise threshold for calculating average noise and generating noise judging threshold, discontinuous transmission detecting, system discontinuous transmission state detecting, calculating other estimate window whether effective except the first estimate window in every physics coded combination transmitting channel of object user, to proceed estimate to other user's estimate window. Said invented method accurately detect out other user's information through utilizing user's physical layer coded combination transmitting channel information.

Description

technical field [0001] The present invention relates to a method for shift sequence detection in a default allocation mode, in particular, relates to a fast and accurate shift sequence detection method in a TD-SCDMA (Time Division Synchronous Code Division Multiple Access) communication system. A method for shifted sequence detection. Background technique [0002] In the receiving device of the TD-SCDMA system, the distribution method of the shift sequence in the whole system is specified by the system. According to the setting of the network layer, there are three ways to allocate the training sequence of the system, such as figure 1 Shown: default allocation mode (DEFAULT), public allocation mode (COMMON) and user-specified allocation mode (UESPECFIC), in the three different shift sequence allocation modes, the known information that the system can obtain is also different, so Subsequent detection algorithms will also vary according to different known information. [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/707H04B1/7105
Inventor 王炳立谢一宁
Owner XUANPU INDUSTRY CO LTD