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

An acquisition method and technology for an information processing method are applied in the fields of CSI processing and acquisition methods, systems and storage media, devices, and equipment, to achieve the effects of flexible codebook design and improved system performance

Active Publication Date: 2019-12-03
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 obtaining method, device, equipment, system and storage medium
  • CSI processing and obtaining method, device, equipment, system and storage medium
  • CSI processing and obtaining method, device, equipment, system and storage medium

Examples

Experimental program
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Effect test

Embodiment 1

[0039] A codebook type method is uniformly adopted for each transmission layer. 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 layer grouping information of the layer grouping information determines the precoding matrix index of each layer group in the layer grouping information; that is, after each layer is grouped, the precoding matrix index of each layer in a layer group is determined in units of a layer group, thereby 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 the codebook type according to the specific conditions of each layer. Compared with each transmission layer, a unified code is adopted. With this type of method, the codebook design is more accurate and ...

Embodiment 2

[0078] In order to facilitate understanding, this embodiment is described with several examples of certain layer grouping information.

[0079] Manner 1: The first communication node device (such as a base station) itself determines layer grouping information according to specific scheduling conditions, 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 (for example, the terminal), the second communication node device can determine the layer grouping information through the layer packet signaling received from the first communication node device.

[0080] Manner 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 that the fixed value is R0 = 1, 2, 3, 4, that is, the second layer group includes layers 1 to...

Embodiment 3

[0114] In order to facilitate understanding, this embodiment uses the order of determining the layer grouping information and other CSI information to illustrate 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 indicator RI, the precoding matrix information of each layer group can be determined based on the rank indicator RI and the layer grouping information, or the precoding matrix information is based on the layer grouping information. The grouping information is determined. That is, in an example, the rank indicator RI can be calculated first according to the channel matrix, and after the rank indicator RI is determined, on the basis of the obtained RI, the layer grouping information can be determined by the method illustrated in the above embodiments; The grouping information determines the precoding matrix index of the layer corresponding to each layer group.

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Abstract

The embodiment of the invention provides a CSI (Channel State Information) processing and obtaining method, a device, equipment, a system and a storage medium, and the method comprises the steps: determining layer grouping information in a channel state information CSI processing process, and determining a precoding matrix index corresponding to each layer group indicated by the layer grouping information according to the obtained layer grouping information; namely, the precoding matrix index of each layer in one layer group is determined by taking one layer group as a unit; therefore, a technical implementation basis is provided for each layer among different layer groups to use different precoding matrix indexes; in certain embodiments, different precoding matrix indexes can be used foreach layer among different layer groups; according to the method, different codebook types are used, so that the adaptive codebook type can be flexibly matched for each layer according to the specificsituation of each layer, and compared with the mode that one codebook type is uniformly adopted for each transmission layer, the codebook design is more flexible and accurate, the overhead and the performance can be better balanced, and the system performance is improved.

Description

Technical field [0001] The embodiment of the present invention relates to but not limited to the field of communications, and specifically relates to but not limited to a CSI processing and obtaining method, device, device, system and storage medium. Background technique [0002] Currently, there are multiple communication standard protocols, such as the fourth-generation Long Term Evolution (LTE), the Long Term Evolution upgrade technology (LTE-Advanced, LTE-A), and the fifth-generation new wireless access technology (New Radio Access Technology, NR). In communication systems such as LTE and NR, in order to improve the performance of the system, multi-antenna technology is mostly adopted. To take advantage of the multi-antenna technology, a base station or terminal needs to obtain a more accurate channel state information (CSI) that carries a codebook type. [0003] In related technologies, the base station informs the terminal of a codebook type that needs to be used through hi...

Claims

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Application Information

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Patent Type & Authority Applications(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