Multi-user diversity method and equipment in multi-antenna communication system

A communication system and multi-user technology, applied in the direction of diversity/multi-antenna system, etc., can solve the problems of non-optimum system downlink capacity and difficult to achieve optimal system capacity.

Inactive Publication Date: 2006-11-29
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0017] (1) At each moment, the base station can only communicate with one user
[0018] (2) The downlink capacity of the system is not optimal at this time
A precondition in the traditional method is that at the same time, all transmitting antennas can only communicate with one user. This precondition limits the system capacity and makes it difficult to achieve optimal results.

Method used

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  • Multi-user diversity method and equipment in multi-antenna communication system
  • Multi-user diversity method and equipment in multi-antenna communication system
  • Multi-user diversity method and equipment in multi-antenna communication system

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Embodiment Construction

[0039] The difference between the method of the present invention and the traditional method is that the method of the present invention adopts the method of selecting users one by one for transmitting antennas. Specifically, in the traditional method, at each moment, all the transmitting antennas of the base station are assigned to a certain user; while in the method of the present invention, at each moment, different transmitting antennas of the base station are assigned to different users. This is the basic concept of the multi-user diversity method according to the present invention.

[0040] The specific implementation manner of the present invention will be described below with reference to the accompanying drawings.

[0041] image 3 Shown is a schematic diagram of using a multi-user data scheduling module according to an embodiment of the present invention.

[0042] Such as image 3 As shown, the multi-user data scheduling module according to the embodiment of the p...

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Abstract

This invention relates to a multi-user hierarchy method in a multi-antenna communication system including: determining the increased value to the down volume of the system when distributing the emission antennas in the being transmitted antenna set, selecting the emission antennas and receiving users corresponding to the increased value of the largest system down volume so as to distribute the selected emission antennas to the selected users, removing the selected antennas from the being sent antenna set, if the set is not empty, then it turns to the determination step.

Description

technical field [0001] The present invention relates to multi-user diversity technology. More specifically, it relates to a multi-user diversity method and device in a multi-antenna communication system, which can increase the number of users communicating with a base station at the same time, and further improve the downlink capacity of MIMO multi-users. Background technique [0002] Increasingly high information transmission rate is one of the main problems faced by future wireless communication systems. In order to achieve this goal on limited spectrum resources, multiple antenna technology (MIMO) has become one of the indispensable means used in future wireless communications. In the MIMO system, the transmitting end uses multiple antennas to transmit signals, and the receiving end uses multiple antennas to receive spatial signals. Studies have shown that compared with traditional single-antenna transmission methods, MIMO technology can significantly increase channel c...

Claims

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Application Information

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IPC IPC(8): H04B7/02
Inventor 佘小明李继峰
Owner PANASONIC CORP
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