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Method and system for acquiring feedback information of channel quality and base station

A technology of channel quality and feedback information, applied in wireless communication, network traffic/resource management, electrical components, etc., can solve problems such as unfavorable wireless resources, unfavorable frequency diversity gain, and restriction of network-side scheduling behavior, so as to save wireless resources, Improve flexibility, take full advantage of the effect

Active Publication Date: 2010-11-17
CHINA MOBILE COMM GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, current mobile terminals can work simultaneously through multiple carrier channels in a single working frequency band, or through multiple carriers in multiple frequency bands; for these mobile terminals, the above channel feedback information cannot reflect that the mobile terminal is working simultaneously The quality of other carrier channels in a single working frequency band, or the quality of carrier channels in other frequency bands; the network side cannot grasp the quality of the carrier channels that the mobile terminal is working at the same time, so this limits the quality of the network side to a large extent. The scheduling behavior is not conducive to fully utilizing the frequency diversity gain, and it is not conducive to making full use of wireless resources on the network side.
[0004] If the mobile terminal provides feedback for all carriers / resource blocks in all supported frequency bands, the amount of overhead and power consumption is unbearable for the terminal
[0005] Therefore, the channel quality feedback method provided by the prior art cannot take into account the overhead on the terminal side and the full utilization of resources on the network side

Method used

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  • Method and system for acquiring feedback information of channel quality and base station
  • Method and system for acquiring feedback information of channel quality and base station
  • Method and system for acquiring feedback information of channel quality and base station

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Embodiment Construction

[0028] According to the supported frequency band capability reported by the terminal, the base station in the embodiment of the present invention configures the frequency band feedback indication information for the terminal in combination with the current network frequency band resources, and the information is used to indicate which frequency band or channel quality the terminal reports; , performing channel quality measurement on carriers / resource blocks in some frequency bands and feeding back the measurement results (that is, channel quality information). Therefore, the network side can request the terminal to feed back the channel quality information of the corresponding frequency band for flexible scheduling according to the load condition of the network side, saving wireless resources on the network side. It achieves the purpose of not only saving the overhead of the terminal, but also enabling the network side to flexibly schedule according to the feedback channel qual...

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Abstract

The invention relates to the field of mobile communication, in particular to technology for feeding back channel quality to a base station by using a mobile terminal. The invention provides a method and a system for acquiring feedback information of channel quality and a base station. The method comprises the following steps that: the base station receives frequency band supporting capacity information reported by the mobile terminal; according to the received frequency band supporting capacity information, the base station determines frequency band feedback indication information and transmits the frequency band feedback indication information to the mobile terminal; and the base station a channel quality measuring result fed back by the mobile terminal according to the frequency band feedback indication information. Based on the frequency supporting capacity reported by the terminal and the current network frequency band resources, the base station determines that the terminal reports the channel quality of which frequency band or frequency bands and indicates the mobile terminal in the frequency band feedback indication information, so that the channel quality of part of frequency band intercarrier / resource block supported by the mobile can be acquired pertinently, the scheduling flexibility is improved, and the expenditure of the terminal side is saved.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a technology for a mobile terminal to feed back channel quality to a base station. Background technique [0002] The mobile terminal needs to regularly send channel feedback information to the base station on the network side to reflect the quality of the communication channel between the mobile terminal and the base station; the base station can perform macro-scheduling on the network side according to the information fed back by the mobile terminal to improve spectrum utilization. for load balancing purposes. [0003] At present, the channel quality feedback information of the mobile terminal generally only feeds back the channel quality of the maximum bandwidth that can be supported by a single carrier in a single working frequency band. However, current mobile terminals can work simultaneously through multiple carrier channels in a single working frequency band, or throug...

Claims

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Application Information

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IPC IPC(8): H04W24/00H04W28/08
Inventor 李男徐瑨
Owner CHINA MOBILE COMM GRP CO LTD
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