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A method and device for determining CSI-RS transmission resources

A technology for transmission resources and user equipment, which is applied in the field of determining CSI-RS transmission resources, and can solve problems such as occupying different physical resources

Active Publication Date: 2021-10-22
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both normal subframes and special subframes can be used for CSI-RS transmission, but CSI-RS occupies different physical resources in different types of subframes

Method used

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  • A method and device for determining CSI-RS transmission resources
  • A method and device for determining CSI-RS transmission resources
  • A method and device for determining CSI-RS transmission resources

Examples

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Effect test

example 1

[0070] Example 1: When the uplink and downlink subframe configuration indicated by the physical layer dynamic signaling is different from the broadcast signaling, the user equipment can determine the uplink and downlink subframe configuration used to transmit the CSI-RS according to the uplink and downlink subframe configuration indicated by the signaling agreed with the base station The resource position of the CSI-RS in the subframe can also be determined according to the 1-bit RRC signaling sent by the base station. The uplink and downlink subframe configuration indicated by the physical layer dynamic signaling or broadcast signaling is used to determine the CSI-RS transmission. The resource position of the CSI-RS in the subframe of the RS.

[0071] If the user equipment determines the resource position of the CSI-RS in the subframe used to transmit the CSI-RS by using the uplink and downlink resource configuration indicated by the broadcast signaling according to the agreem...

example 2

[0072] Example 2: When the uplink and downlink subframe configurations indicated by the dynamic physical layer signaling and the broadcast signaling are different, the user equipment determines to transmit CSI according to the uplink and downlink subframe configurations indicated by the dynamic physical layer signaling and the broadcast signaling respectively - The resource position of the CSI-RS in the subframe of the RS.

[0073]According to the uplink and downlink subframe configuration 1 notified by broadcast signaling, the user equipment determines that subframe 6 is a special subframe, and determines the CSI-RS in subframe 6 according to the resource position of the current CSI-RS resource configuration in the special subframe. RS resource set A; according to the uplink and downlink subframe configuration 3 indicated by the physical layer dynamic signaling, determine the subframe 6 as a normal subframe, and determine the subframe according to the resource position of the ...

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PUM

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Abstract

The invention discloses a method and equipment for determining CSI-RS transmission resources. In the method: the user equipment acquires uplink and downlink subframe configuration information used to determine the resource location of the CSI-RS; the user equipment determines the subframe used to transmit the subframe of the CSI-RS according to the uplink and downlink subframe configuration information type; the user equipment determines the resource position of the CSI-RS in the subframe used to transmit the CSI-RS according to the determined subframe type. The present invention enables the user equipment to determine the position of the CSI-RS resource according to the configuration of the uplink and downlink subframes.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and equipment for determining CSI-RS transmission resources. Background technique [0002] In LTE (Long Term Evolution, Long Term Evolution) Release 10, the base station configures CSI-RS (Channel State Information-Reference Signal, Channel State Information-Reference Signal) for the user equipment, and the base station can transmit the CSI-RS in a specific subframe, and the user The device can perform channel quality measurement based on CSI-RS, such as measuring PMI (Precoding Matrix Indicator, precoding matrix indication), CQI (Channel Quality Indicator, channel quality indication) or RI (Rank Indication, rank indication), etc., and can also perform rate match. [0003] In a TDD (Time Division Duplexing, Time Division Duplexing) system, a radio frame includes a normal uplink subframe, a normal downlink subframe and a special subframe (the speci...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/00H04W72/02H04W72/08H04W24/08
CPCH04W24/08H04W72/02H04W72/30H04W72/542H04W72/04H04L5/0051H04L5/0091H04L5/1469H04W72/0446H04W72/23H04B7/0626H04L5/0048H04L5/14
Inventor 陈文洪潘学明高秋彬拉盖施
Owner DATANG MOBILE COMM EQUIP CO LTD