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Channel information feedback and determination method, receiving end device and transmitting end device

A device and technology for describing information, applied in the field of communication, can solve the problems of limited codebook space, limited precoding effect, large deviation, etc., to achieve the effect of expanding the codebook space and improving the precoding effect

Active Publication Date: 2018-07-17
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limited codebook space, the deviation between the precoding vector selected based on the codebook and the ideal precoding vector is large, resulting in limited precoding effect

Method used

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  • Channel information feedback and determination method, receiving end device and transmitting end device
  • Channel information feedback and determination method, receiving end device and transmitting end device
  • Channel information feedback and determination method, receiving end device and transmitting end device

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Embodiment Construction

[0048] The technical solutions provided by the embodiments of the present invention will be described in detail below in conjunction with the corresponding drawings.

[0049] figure 1 is an exemplary schematic diagram of a wireless communication network 100 according to an embodiment of the present invention. Such as figure 1 As shown, the wireless communication network 100 includes base stations 102-106 and terminal devices 108-122, wherein the base stations 102-106 can be connected to each other through a backhaul (backhaul) link (as shown by the straight lines between the base stations 102-106) For communication, the backhaul link may be a wired backhaul link (such as optical fiber, copper cable), or a wireless backhaul link (such as microwave). Terminal devices 108-122 may communicate with corresponding base stations 102-106 via wireless links (as indicated by broken lines between base stations 102-106 and terminal devices 108-122).

[0050] The base stations 102-106 ar...

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Abstract

The embodiment of the invention provides a channel information feedback and determination method, a receiving end device and a transmitting end device. The channel information feedback method comprises the following steps: generating at least one piece of description information for each subband of in a plurality of subbands contained in a broadband, wherein the each piece of description information is used for describing a description vector of a channel matrix corresponding to the subband, and the description information comprises at least one of a vector parameter and a weight parameter; and sending the at least one piece of description information. The embodiment of the invention further provides a channel information determination method, a receiving end device and a transmitting enddevice. Precoding based on a description vector fed back by the technical scheme provided by the embodiment of the invention can improve the precoding effect.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a channel information feedback and determination method, receiving end and transmitting end equipment. Background technique [0002] The emergence of multiple input multiple output (Multiple Input Multiple Output, MIMO) technology has brought revolutionary changes to wireless communication. MIMO technology can significantly improve the performance of the wireless communication system by deploying multiple antennas on the transmitting end device and the receiving end device. For example, in a diversity scenario, MIMO technology can effectively improve transmission reliability; in a multiplexing scenario, MIMO technology can greatly improve transmission throughput. [0003] The MIMO system usually uses precoding technology to improve the channel, so as to enhance the effect of spatial multiplexing (Spatial Multiplexing). Specifically, the precoding technology uses a precod...

Claims

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Application Information

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IPC IPC(8): H04B7/0413H04B7/0456
CPCH04B7/0413H04B7/0456H04B7/0478H04B7/0621H04B7/0479H04B7/0417H04B7/0626H04B7/0634
Inventor 韩玮金黄平毕晓艳
Owner HUAWEI TECH CO LTD
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