Method, system and device for transmitting/receiving information by multi-antenna system
A multi-antenna system and a technology for sending information, which is applied in the direction of preventing/detecting errors through diversity reception, can solve the problems of codebook 1 performance loss, precoding MIMO system performance loss, and unsuitability for spatial correlation channels, etc., and achieve minimization Performance loss, small changes, simple effect
Active Publication Date: 2013-06-12
DATANG MOBILE COMM EQUIP CO LTD
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Problems solved by technology
[0008] The expansion of the 4-antenna codebook, while the Rel-8LTE 4-antenna codebook is obtained by comprehensively considering the optimization of spatially correlated and spatially uncorrelated channels. There is a performance loss
However, no matter what distribution characteristics the channel has, the angles of the corresponding array responses of codewords in codebook 3 and codebook 4 remain unchanged, which may cause performance loss in precoded MIMO systems in certain scenarios
Method used
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[0029]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.
[0030] like figure 1 As shown, it is a flowchart of a multi-antenna system transmission method according to an embodiment of the present invention, including the following steps:
[0031] S101: The sending end receives the information sent by the receiving end, including codeword label information.
[0032] In step S101, the sending end receives information sent by the receiving end, and the information includes codeword label information. Specifically, in order to understand channel conditions, the transmitting end receives information...
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The embodiment of the invention discloses a method for transmitting information by a multi-antenna system. The method comprises the following steps: a transmitting end receives information transmitted by a receiving end, wherein the information comprises code word label information; the transmitting end selects corresponding code words from a fitting array response structure-based codebook according to the code word label information and pre-codes data to be transmitted according to the code words; and the transmitting end transmits the pre-coded data to the receiving end. By adopting the scheme provided by the embodiment of the invention, a formed and used codebook is possibly matched with the distribution characteristic of a space relevant channel, the performance loss caused by codebook quantification is minimized, and the performance of a pre-coding system is effectively enhanced.
Description
technical field [0001] The present invention relates to the field of digital communication, in particular, the present invention relates to a method, system and device for transmitting / receiving information by a multi-antenna system. Background technique [0002] At present, the multi-antenna technology of the physical layer has become one of the key technologies of the next generation wireless communication system. Multi-antenna technology has many advantages. For example, the multiplexing gain of multiple antennas can be used to improve the throughput of the system, and the diversity gain of multiple antennas can be used to improve system performance, or the directional gain of antennas can be used to distinguish receiving terminals and eliminate reception. Interference between terminals and so on. [0003] The MIMO (Multiple-Input Multiple-Output) system uses multiple transmitting and receiving antennas to obtain rate, diversity and array gain by joint processing of sign...
Claims
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IPC IPC(8): H04L1/06
Inventor 张然然高秋彬荆梅芳缪德山拉盖施
Owner DATANG MOBILE COMM EQUIP CO LTD