Space division multiple access method and device for indoor distributed system

A space division multiple access and distributed system technology, applied in the field of mobile communication, can solve the problem of inability to distinguish multiple users, and achieve the effect of improving system capacity

Active Publication Date: 2010-08-11
DATANG MOBILE COMM EQUIP CO LTD
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For example, when the pilot resource used by the user is bound to the code channel resource used by the user, if the user performing space division multiplexing uses the same time slot, code channel and frequency resource, and uses the sam

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  • Space division multiple access method and device for indoor distributed system
  • Space division multiple access method and device for indoor distributed system
  • Space division multiple access method and device for indoor distributed system

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[0037] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, but not to be construed as a limitation of the present invention.

[0038] The present invention proposes a spatial division multiple access method for an indoor distributed system, comprising the following steps: a base station receives an uplink signal sent by a terminal, and performs channel estimation according to the uplink signal; The terminal determines the belonging of the antenna; the base station divides the terminals belonging to different antennas into the same SDMA group, and allocates the same radio resources for data transmission.

[0...

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Abstract

The invention discloses a space division multiple access method for an indoor distributed system, which comprises the following steps: a base station receives an uplink signal transmitted by a terminal and carries out channel estimation according to the uplink signal; the base station judges the antenna belonging of the terminal according to the result of the channel estimation; and the base station divides the terminals belonging to different antennae into one space division multiple access (SDMA) group and distributes the same radio resource to carry out data transmission. The technical scheme of the invention can fully utilize the characteristics of the indoor distributed system, and the coverage areas of the channels are relatively independent according to larger isolation between floors. The technical scheme also fully utilizes the distributed antenna to realize SDMA for users and effectively enhance the system capacity.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular, the present invention relates to a space division multiple access method and equipment for an indoor distributed system. Background technique [0002] The smart antenna technology at the physical layer has become one of the key technologies of the next-generation wireless communication system. The smart antenna technology has many advantages, such as using digital signal processing technology to generate spatially directional beams, so that the main beam of the antenna is aligned with the direction of arrival of user signals, so that The side lobe or null of the antenna is aimed at the arrival direction of the interference signal, so as to fully and efficiently utilize the mobile user signal and suppress the interference signal. The use of smart antennas can maximize the useful signal and minimize the interference signal, thus greatly improving the system capacity and ex...

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Application Information

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IPC IPC(8): H04B7/08H04B1/707H04W76/02H04W88/08
Inventor 徐红艳谭凤鸣吴柯维熊芳
Owner DATANG MOBILE COMM EQUIP CO LTD
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