Method and device for indicating terminal to report measurement information

A technology for measuring information and terminals, applied in wireless communication, electrical components, etc., can solve problems such as difficult to implement CoMP, difficult to implement CoMP technology, difficult to measure, etc., to improve resource utilization and data transmission efficiency, and improve user experience Effect

Active Publication Date: 2010-09-29
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] For the LTE-A (Long Term Evolution-Advanced, Long Term Evolution-Advanced) system, it is difficult for the terminal to know which cells to measure, so it is difficult to implement CoMP technology in the LTE-A system
[0005] To sum up, in the current LTE-A system, it is difficult for the terminal to know which cells to measure, so it is difficult to implement CoMP technology

Method used

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  • Method and device for indicating terminal to report measurement information
  • Method and device for indicating terminal to report measurement information
  • Method and device for indicating terminal to report measurement information

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Embodiment Construction

[0017] The embodiment of the present invention determines the reporting cell set (CoMP Reporting Cell Set, CRCS) of the terminal; sends the determined reporting cell set to the terminal to instruct the terminal to measure the cells in the reporting cell set and report measurement related information. Since the terminal can be instructed which cells to measure, the CoMP technology can be implemented in the LTE-A system, and the resource utilization rate and data transmission efficiency of the system are improved.

[0018] Reporting a set of cells means that the terminal needs to measure the cells in the set and report measurement-related information, such as: Channel Quality Indicator (CQI), Pre-Coding Matrix Index (PMI), matrix The rank information (Rank Information, RI) and so on. After receiving the information reported by the terminal, the base station can determine which cells are used to perform CoMP transmission with the terminal.

[0019] The embodiment of the present ...

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Abstract

The invention relates to the wireless communication technology, in particular to a method and a device for indicating a terminal to report measurement information, which can be used for indicating the terminal to measure certain cells in an LTE-A system so as to realize CoMP technology. The method of the embodiment of the invention comprises the following steps of: determining a reported cell set CRCS of the terminal; and sending the determined reported cell set to the terminal to indicate the terminal to measure the cells in the reported cell set, and reporting the measurement related information. The method of the embodiment of the invention can indicate the terminal to measure the certain cells so as to realize the CoMP technology in the LTE-A system and improve the resource utilization rate and data transmission efficiency of the system.

Description

technical field [0001] The invention relates to wireless communication technology, in particular to a method and device for instructing a terminal to report measurement information. Background technique [0002] CoMP (Coordinated multi-point, coordinated multi-point) technology can increase the coverage of high data rates, improve the throughput of the cell edge and the throughput of the system. The so-called coordinated multi-point means that multiple geographically separated transmission points (that is, different base stations) cooperate to participate in the transmission of data to a terminal. Such as figure 1 As shown in the schematic diagram of CoMP technology, three cells send data to one terminal at the same time. [0003] Currently, the CoMP technology can be used in both the uplink and downlink. The CoMP technology in the downlink is mainly used for cooperative scheduling, BF (beam forming) and joint processing / transmission. During coordinated scheduling and BF...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/10
Inventor 赵毅谌丽彦楠赵瑾波
Owner DATANG MOBILE COMM EQUIP CO LTD
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