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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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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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 same pilot resource for communication, The channel estimates of multiple users performing space division multiplexing on the base station side will fall in the same detection window, making it impossible to distinguish between multiple users

Method used

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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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Embodiment Construction

[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0038] The present invention proposes a space division multiple access method for an indoor distributed system, including the following steps: the base station receives an uplink signal sent by a terminal, and performs channel estimation according to the uplink signal; according to the result of channel estimation, the base station The terminal performs antenna ownership judgment; the base station divides the terminals belonging to different antennas into the same space division multiple access SDMA group, and allocates the same wireless ...

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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...

Claims

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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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