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Method and device for acquiring channel quality indication information

A technology of channel quality indication and acquisition method, which is applied to electrical components, digital transmission systems, and error prevention, etc. It can solve the problems that relay nodes cannot obtain accurate channel quality indication information, flexibility and performance degradation, etc., so as to improve flexibility Sex and performance, accurate results

Active Publication Date: 2016-12-14
南通东湖国际商务服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0053] The main purpose of the present invention is to provide a method and device for obtaining channel quality indication information to solve the problem that the relay node in the existing system cannot obtain accurate channel quality indication information because the existence of R-PDCCH is not considered, which leads to the flexibility of the system. issues with sex and performance

Method used

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  • Method and device for acquiring channel quality indication information
  • Method and device for acquiring channel quality indication information
  • Method and device for acquiring channel quality indication information

Examples

Experimental program
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Embodiment 1

[0073] figure 1 It is a preferred structural block diagram of a device for acquiring channel quality indication information of a relay node according to an embodiment of the present invention. The device includes: a receiving unit 102, a measuring unit 104, a determining unit 106, and a transmitting unit 108 connected in sequence, wherein:

[0074] The receiving unit 102 receives the channel state information CSI reference resource sent by the base station;

[0075] The measuring unit 104 measures the channel state information reference symbol CSI-RS and / or the common reference signal CRS corresponding to the CSI reference resource;

[0076] The determining unit 106 determines the CQI value corresponding to the CSI reference resource according to the measurement result, where it is assumed that the relay physical downlink control channel R-PDCCH does not occupy resource elements in the CSI reference resource; or it is assumed that the CSI reference resource is not configured The res...

Embodiment 2

[0085] image 3 It is a preferred flowchart of a method for acquiring channel quality indicator information according to an embodiment of the present invention, and the method includes:

[0086] S302: The relay node receives the channel state information CSI reference resource sent by the base station.

[0087] S304: The relay node measures the channel state information reference symbol CSI-RS and / or the common reference signal CRS corresponding to the CSI reference resource.

[0088] S306. The relay node determines the CQI value corresponding to the CSI reference resource according to the measurement result, where it is assumed that the relay physical downlink control channel R-PDCCH does not occupy resource elements in the CSI reference resource, or it is assumed that the CSI reference is not configured The resource element in the resource is for the relay physical downlink control channel R-PDCCH;

[0089] S308: The relay node reports the CQI value to the base station.

[0090] In t...

Embodiment 3

[0097] Figure 4 It is another flowchart of a method for acquiring channel quality indicator information according to an embodiment of the present invention, and the method includes:

[0098] S401: The base station eNodeB sends CSI-RS and CRS to a relay node (Relay Node, RN for short);

[0099] S403: The relay node performs channel measurement according to CSI-RS or CRS;

[0100] S405. The relay node determines the CSI reference resource, and determines the CQI value on the CSI reference resource according to the channel measurement result, and the CQI acquisition method includes, when determining the CQI value, assuming that the R-PDCCH (Relay Physical Downlink Control Channel) relay physical The resource of the CSI reference resource that is not used by the downlink control channel; or, assuming that no resource element in the CSI reference resource is configured for the relay physical downlink control channel R-PDCCH;

[0101] S407: The relay node reports the CQI value to the eNode...

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Abstract

The present invention discloses a method and device for acquiring channel quality indication information, wherein the method includes: a relay node receives a CSI reference resource sent by a base station; the relay node performs CSI-RS and / or CRS corresponding to the CSI reference resource Measurement: The relay node determines the CQI value corresponding to the CSI reference resource according to the measurement result, where it is assumed that the R-PDCCH does not occupy the resource elements in the CSI reference resource; or, it is assumed that the resource elements in the CSI reference resource are not configured for the R-PDCCH PDCCH: the relay node reports the CQI value to the base station. The present invention solves the problem that the relay node in the existing system cannot obtain accurate channel quality indication information because it does not consider the existence of R-PDCCH, resulting in reduced system flexibility and performance, and then achieves accurate channel quality indication information, Effects that improve system flexibility and performance.

Description

Technical field [0001] The present invention relates to the field of communications, and in particular to a method and device for acquiring channel quality indicator information. Background technique [0002] In wireless communication technology, when the base station side (e.g., eNodeB, or eNB for short) uses multiple antennas to transmit data, spatial multiplexing can be adopted to increase the data transmission rate, that is, the same time and frequency are used at the transmitting end The resource transmits different data at different antenna positions, and the receiving end (for example, User Equipment (UE)) also uses multiple antennas to receive data. In the case of a single user, all antenna resources are allocated to the same user. This user alone occupies the physical resources allocated to the base station side within a transmission interval. This transmission method is called single user multiple input multiple output (Single User Multiple Output). -Input Multiple-Out...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/06H04L1/00
Inventor 徐俊李儒岳袁弋非毕峰陈艺戬张峻峰
Owner 南通东湖国际商务服务有限公司