Space division multiplex wireless communication system, device and method for the same

A wireless communication system and space division multiplexing technology, applied in the field of wireless communication systems, can solve the problem of low frequency utilization efficiency, and achieve the effects of reducing circuit scale, improving spatial multiplicity, and improving frequency utilization efficiency

Inactive Publication Date: 2006-07-12
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] According to conventional technology, in an environment with few propagation paths, frequency utilization becomes inefficient

Method used

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  • Space division multiplex wireless communication system, device and method for the same
  • Space division multiplex wireless communication system, device and method for the same
  • Space division multiplex wireless communication system, device and method for the same

Examples

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Embodiment 1

[0066] figure 1 is a schematic diagram illustrating the wireless communication system in Embodiment 1 of the present invention. Such as figure 1 As shown, the wireless communication system in this embodiment includes a first terminal 1 , a second terminal 2 , a third terminal 3 and a base station 4 . Before explaining the base station 4 and each of the terminals 1, 2, 3 in detail, an outline of the wireless communication system will be explained.

[0067] exist figure 1 In the example, there is an electromagnetic interference object 6 between the base station 4 and the second terminal 2 , and there is an electromagnetic interference object 7 between the base station 4 and the third terminal 3 .

[0068] In this way, a propagation path 8 is formed between the base station 4 and the first terminal 1 . Likewise, a propagation path 9 and a propagation path 10 are respectively formed between the base station 4 and the second terminal 2 , and a propagation path 11 and a propagat...

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PUM

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Abstract

A wireless communication system comprises a base station (4) and terminals (1) - (3). The base station (4) and the terminals (1) - (3) perform a space division multiplex wireless transmission. Each of the base station (4) and the terminals (1) - (3) comprises a multi-beam antenna for a space division multiplex. A beam pattern formed by the multi-beam antenna of the base station (4) is orthogonalized based on transfer function values of a radio-wave-propagation characteristic formed between antenna elements of the multi-beam antenna of the base station (4) and antenna elements of multi-beam antenna of the terminals (1) - (3).

Description

technical field [0001] The invention relates to a wireless communication system for space-division wireless point-to-multipoint communication using multi-beam antennas and related technologies. Background technique [0002] In general, Frequency Division Multiplexing (FDM), Time Division Multiplexing (TDM) and Code Division Multiplexing (CDM) are well known. [0003] According to these multiplexing techniques, multiple pieces of information can be made into output data, and this output data can be transmitted wirelessly. As the information multiplicity of output data increases, the required radio frequency bandwidth becomes very wide. Therefore, when the available bandwidth is not wide enough, frequency shortages are prone to occur. [0004] According to space division multiplexing (SDM), a plurality of antenna elements are installed on each transmitting terminal and receiving terminal, and the same frequency is used to multiplex transmitted data without increasing radio f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/06H04B7/08H04J99/00H04L25/02H04L27/26H04W16/28
CPCH04B7/086H04L25/0224H04W16/28H04B7/0617H04L27/2601
Inventor 古贺正一近藤润二
Owner PANASONIC CORP
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