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Channel cluster tracking method and device

A channel cluster and channel impulse response technology, applied in diversity/multi-antenna systems, space transmit diversity, etc.

Active Publication Date: 2011-06-15
CHINA MOBILE COMM GRP CO LTD
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Problems solved by technology

[0015] In view of this, the main purpose of the present invention is to provide a channel cluster tracking method, which solves the source problem of surviving clusters and improves the accuracy of the tracking algorithm at the same time when clusters merge.
[0016] Another object of the present invention is to provide a channel cluster tracking device, which solves the problem of the source of the surviving clusters when the clusters merge, and improves the accuracy of the tracking algorithm at the same time

Method used

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Embodiment Construction

[0072] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0073] figure 2 It is a schematic flowchart of a channel cluster tracking method according to an embodiment of the present invention. see figure 2 , the process includes:

[0074] Step 201, obtaining multi-path channel impulse response data and relative geographical information of the sending and receiving ends;

[0075] In this step, on the preset measurement route, the channel impulse response data and The geographical information or relative geographical information of the corresponding sending and receiving ends.

[0076] Preferably, a measurement route with a fixed direction is planned and the transmitting end is kept stationary, so that the reference directions of the antenna arrays at the transmitting and receiving ends remai...

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Abstract

The invention discloses a channel cluster tracking method. The method comprises the following steps of: acquiring multi-channel impulse response data and relative geographic information of two transceiving ends, extracting multi-channel space time multi-dimensional parameter information from the acquired multi-channel impulse response data, clustering multiple channels by using a preset clustering algorithm, acquiring space time multi-dimensional parameters of a clustered center, calculating multi-channel component distance (MCD) value of each cluster of adjacent moments, estimating the change range of the MCD value of each cluster according to the acquired relative geographic information, acquiring the MCD threshold value of each corresponding cluster, and executing cluster tracking according to the acquired MCD value of each cluster and the calculated MCD value of each cluster. The invention also discloses a channel cluster tracking device at the same time. The method and the devicecan solve the source problem of living clusters when the clusters are fused, and meanwhile, improve the precision of a tracking algorithm.

Description

technical field [0001] The invention relates to wireless communication technology, in particular to a channel cluster tracking method and device. Background technique [0002] With the development of wireless communication technologies, in order to effectively carry massive multimedia services, the requirements for transmission rate and spectrum efficiency of wireless communication systems are getting higher and higher. Multiple-Input and Multiple-Output (MIMO, Multi-Input and Multi-Output) technology is the key technology of a new generation of mobile communication systems proposed to improve the transmission rate and spectrum efficiency of wireless communication systems. This technology uses multiple antennas to suppress channel fading , can double the capacity and spectrum utilization of the wireless communication system without increasing the bandwidth. However, since the performance of MIMO technology is also subject to the space-time fading characteristics of the chan...

Claims

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Application Information

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IPC IPC(8): H04B7/04
Inventor 张建华董第张平董伟辉刘光毅
Owner CHINA MOBILE COMM GRP CO LTD
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