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

A channel information feedback and device technology, applied in the field of communication, can solve problems such as limited precoding effect, limited codebook space, and large deviation, and achieve the effect of improving precoding effect and expanding codebook space

Active Publication Date: 2021-06-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

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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. like 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 are u...

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Abstract

Embodiments of the present invention provide a channel information feedback and determination method, receiving end and transmitting end equipment. The channel information feedback method includes: for each subband in the multiple subbands included in the broadband, generate at least one piece of description information, each description information is used to describe a description vector of the channel matrix corresponding to the subband, and the description information including at least one of a vector parameter and a weight parameter; sending the at least one piece of description information. The embodiment of the present invention also provides a method for determining channel information, a receiving end device and a transmitting end device. Performing precoding based on the description vector fed back by the technical solution provided by the embodiment of the present invention can improve the effect of precoding.

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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Patent Type & Authority Patents(China)
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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