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Channel state information processing method, base station and terminal

A technology of channel state information and processing method, which is applied in the field of channel state information processing, and can solve problems such as no UE feedback rules

Active Publication Date: 2014-05-14
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0028] Embodiments of the present invention provide a channel state information processing method, a base station, and a terminal, so as to solve the problem that there is currently no feedback rule for UE to perform multiple CSI feedback

Method used

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  • Channel state information processing method, base station and terminal
  • Channel state information processing method, base station and terminal
  • Channel state information processing method, base station and terminal

Examples

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Effect test

Embodiment 1

[0211] When the base station configures a CSI process with a CSI reference process, then this process should be configured with the same feedback mode and / or feedback type as the CSI reference process.

[0212] The terminal assumes that when a CSI process has a CSI reference process and both are configured with RI feedback, then this process should have the same feedback mode and / or feedback type as the configured CSI reference process.

Embodiment 2

[0214] When the base station configures a CSI process to have a CSI reference process and provide periodic feedback, then this process should be configured with the same feedback mode and / or feedback type as the CSI reference process.

[0215] The terminal assumes that when a CSI process has a CSI reference process and is configured for periodic feedback and RI feedback, then this process should have the same feedback mode and / or feedback type as the configured CSI reference process.

Embodiment 3

[0217] When the base station configures a CSI process with a CSI reference process, and the number of non-zero power (NZP) CSI-RS ports of the CSI process and the CSI reference process is 8, and both are configured with RI feedback, then this process should be configured with The same feedback mode and / or feedback type as the CSI reference process.

[0218] The terminal assumes that when a CSI process has a CSI reference process, and the number of NZP CSI-RS ports of the CSI process and the CSI reference process is 8, and both are configured with RI feedback, then this process should be configured the same as the CSI reference process Feedback mode and / or type of feedback.

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PUM

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Abstract

The invention provides a channel state information (CSI) processing method, a base station and a terminal. The channel state information processing method comprises the following steps: the base station configures a plurality of CSI processes for the terminal, wherein each CSI process at least comprises information of channel measurement portion and information of interference measurement portion; when the base station configures corresponding CSI reference processes for a part of or all CSI processes, the base station at least limits the rank indication (RI), used for calculating CSI reports, of the CSI processes to be consistent with the RI of the CSI reference processes through the configuration of the CSI reference processes; and for the CSI processes configured with the CSI reference processes, the base station receives the CSI reports of the CSI processes according to the RI corresponding to the CSI reference processes, or RI and PTI, or RI and PMI0. According to the channel state information processing method, the base station and the terminal, the channel state information configuration and feedback can be flexibly achieved, thereby effectively reducing uplink feedback overhead and possible collision probability of feedback information.

Description

technical field [0001] The invention relates to channel state information feedback technology, in particular to a channel state information processing method, base station and terminal. Background technique [0002] After the Long Term Evolution (LTE, Long Term Evolution) system experienced several versions of R8 / 9 / 10, R11 technology was proposed again. At present, some R8 products are gradually commercialized, and R9 and R10 are subject to further product planning. [0003] After going through the stages of R8 and R9, R10 added many new features on the basis of the first two, such as demodulation reference signal (DMRS, Demodulation Reference Signal), channel state information reference signal (CSI-RS, Channel State Information Reference Signal) and other pilot features, 8-antenna support and other transmission and feedback features, etc., especially the enhanced Inter-Cell Interference Cancellation (eICIC, enhanced Inter-Cell Interference Canceling) technology is further ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L5/00H04B7/06
CPCH04L1/0026H04L1/0029H04L1/003H04B7/024H04B7/0486H04B7/0626H04L1/0033H04W24/10H04B7/0632
Inventor 郭森宝李儒岳孙云锋张峻峰
Owner ZTE CORP
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