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CSI processing and acquisition method, device, equipment, system and storage medium

An information processing method and layer grouping technology, which are applied in the field of communication to achieve the balance of overhead and performance, flexible codebook design, and improved system performance.

Active Publication Date: 2022-05-03
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The CSI processing and acquisition method, device, equipment, system, and storage medium provided by the embodiments of the present invention mainly solve the technical problem of solving the problem that each transmission layer uniformly adopts one codebook type

Method used

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  • CSI processing and acquisition method, device, equipment, system and storage medium
  • CSI processing and acquisition method, device, equipment, system and storage medium
  • CSI processing and acquisition method, device, equipment, system and storage medium

Examples

Experimental program
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Embodiment 1

[0039] For each transmission layer, one codebook type is adopted uniformly. In this implementation, when determining the precoding matrix index of each layer (including but not limited to the transmission layer), the layer grouping information for grouping each layer can be determined, and then according to the obtained The layer grouping information, determine the precoding matrix index of each layer group in the layer grouping information; that is, after grouping each layer, determine the precoding matrix index of each layer in a layer group in units of a layer group, so that It provides a technical implementation basis for the use of different precoding matrix indexes for each layer between different layer groups. It can flexibly match and adapt to the codebook type according to the specific conditions of each layer. Compared with each transmission layer, a unified codebook is used. In this type of method, the codebook design is more precise and flexible, and it is also more...

Embodiment 2

[0078] For ease of understanding, this embodiment is described with examples of several types of determined layer grouping information.

[0079] Method 1: The first communication node device (such as a base station) determines the layer grouping information by itself according to the specific scheduling situation, and optionally, can send the determined layer grouping information through configuration signaling (for example, including but not limited to layer grouping signaling) For the second communication node device (such as a terminal), the second communication node device can determine the layer grouping information through the layer grouping signaling received from the first communication node device.

[0080] Mode 2: The first communication node device and the second communication node device determine the layer grouping information through an agreed value, for example, directly agreeing on a fixed value of R0=1, 2, 3, 4, that is, the second layer group includes layers 1...

Embodiment 3

[0114] For ease of understanding, this embodiment is described as an example in the order of determining layer grouping information and other CSI information when it is determined that layer grouping is required.

[0115] In an example, when the layer grouping information can be determined (calculated) based on the rank indication RI, the precoding matrix information of each layer group can be determined based on the rank indication RI and the layer grouping information, or the precoding matrix information can be determined based on the layer The group information is confirmed. That is, in an example, the rank indicator RI can be calculated according to the channel matrix first, and after the rank indicator RI is determined, on the basis of the obtained RI, the layer grouping information can be determined by using the methods exemplified in the above-mentioned embodiments; and then according to the layer The grouping information determines the precoding matrix index of the lay...

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Abstract

Embodiments of the present invention provide a CSI processing and acquisition method, device, device, system, and storage medium. During the process of channel state information CSI processing, layer grouping information is determined, and the layer grouping information indication is determined according to the obtained layer grouping information. The precoding matrix index corresponding to each layer group; that is, the precoding matrix index of each layer in a layer group is determined in units of a layer group, so that different precoding matrices are used for each layer between different layer groups The index provides the basis for technical implementation. In some implementation processes, different precoding matrix indexes can be used for each layer between different layer groups, that is, different codebook types can be used, so that it can be based on the specific conditions of each layer. Its flexible matching codebook type, compared with the uniform use of one codebook type for each transport layer, the codebook design is more flexible and accurate, and it is also more conducive to achieving a good balance between overhead and performance, improving the system performance.

Description

technical field [0001] Embodiments of the present invention relate to but are not limited to the field of communications, and specifically, relate to but are not limited to a method, device, device, system and storage medium for processing and acquiring CSI. Background technique [0002] At present, there are multiple communication standard protocols, for example, the fourth-generation long-term evolution technology (Long Term Evolution, LTE), the long-term evolution upgrade technology (LTE-Advanced, LTE-A), the fifth-generation new radio access technology (New Radio Access Technology, NR). In communication systems such as LTE and NR, in order to improve system performance, multi-antenna technology is mostly adopted. To take advantage of the multi-antenna technology, the base station or the terminal needs to obtain more accurate channel state information (Channel State Information, CSI) carrying a codebook type. [0003] In related technologies, the base station notifies t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/04H04B7/0413H04B7/0456
CPCH04B7/0413H04B7/0456H04B7/0486
Inventor 肖华华吴昊鲁照华其他发明人请求不公开姓名
Owner ZTE CORP