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Radio communication system and method

A technology of radio stations and radio resources, applied in wireless communication, diversity/multi-antenna systems, transmission systems, etc., can solve problems such as CQI useless power consumption feedback overhead, to avoid unnecessary calculations, reduce feedback overhead, and avoid power consumption Effect

Active Publication Date: 2017-06-27
NEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Wrong CQI calculation and feedback may generate useless power consumption and unnecessary feedback overhead

Method used

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  • Radio communication system and method
  • Radio communication system and method
  • Radio communication system and method

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Embodiment Construction

[0052] Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings. The examples used to describe the principles of the invention are by way of illustration only and should not be construed in any way as limiting the scope of the disclosure. Those skilled in the art will understand that the principles of the present disclosure may be implemented in any suitably configured wireless network. In the following, reference will be made to image 3 To describe the principle of the present invention.

[0053] exist image 3 In , it is assumed that the network 10 includes cell 1, cell 2 and cell 3 managed by the CCU through backhaul links BL1-BL3 respectively; UE 20 is served by cell 1; and the CoMP measurement set is composed of serving cell 1 and cooperating cell 2 and cell 3 Composition, such as figure 1 shown. The CCU configures the orthogonal non-zero power CSI reference signals CSI-RS1, CSI-RS2 and CSI-RS3 for Cel...

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Abstract

The invention discloses a radio communication system and method. The radio communication system comprises a network and a user terminal, wherein the network comprises multiple radio stations and a controller for controlling multiple radio stations, wherein at least two in the radio stations are communicated with the user terminal; the controller informs the information of the related resource for interference measurement to the user terminal; and the user terminal computes and reports the channel quality information based on the information.

Description

[0001] This application is a divisional application, the national application number of the original application is 201280068556.3, the application date is January 30, 2012, and the invention name is "radio communication system and method". Background technique [0002] The present invention relates generally to a radio communication system, and more particularly, to a technique of controlling a feedback operation of a user terminal in a Coordinated Multipoint (CoMP) transmission / reception scheme. [0003] In LTE-Advanced (Long Term Evolution) release (Rel.11), Coordinated Multipoint Transmission / Reception is considered as a tool for improving coverage at high data rates, cell edge throughput and also improving system throughput, as described in 3GPP TR36 .819v11.0.0, described in Coordinated multi-point operation for LTE physical layer aspects (version 11) (hereinafter referred to as "NPL 1") in Section IV. As described in Section 5.1.3 of NPL1, it has been agreed to support ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/024H04L5/00H04B17/345H04B17/24H04B17/309H04W72/54
CPCH04B17/345H04B7/024H04L5/0035H04L5/0048H04L5/0057H04B17/24H04B17/309H04W72/23H04W72/541H04W24/08
Inventor 刘乐井上高道石井直人鹿仓义一
Owner NEC CORP