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Channel quality indicator reporting method and user equipment

A channel quality indication and user equipment technology, applied in the field of communication, can solve problems such as channel quality deviation, delay, and fading characteristics that cannot be guaranteed, and achieve the effect of improving performance

Active Publication Date: 2015-04-29
HONOR DEVICE CO LTD
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since CQI evaluation needs to sample a certain number of samples, and requires a certain amount of processing time in implementation, which brings delay in implementation, it is impossible to guarantee that the reported CQI can reflect the fading characteristics of the current channel in a timely manner, that is, the reported CQI and the current actual channel quality will be different. deviation

Method used

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  • Channel quality indicator reporting method and user equipment
  • Channel quality indicator reporting method and user equipment
  • Channel quality indicator reporting method and user equipment

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] It should be understood that the technical solutions of the embodiments of the present invention can be applied to various communication systems, for example: Global System of Mobile communication (Global System of Mobile communication, referred to as "GSM") system, Code Division Multiple Access (Code Division Multiple Access, referred to as "CDMA") system, Wideband Code Division Multiple Access (referred to as "WCDMA") system, General Packet Radio Service ...

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Abstract

The invention discloses a channel quality indicator CQI reporting method and user equipment. The method comprises: determining the SNR (Signal Noise Ratio) predicted value of the current moment according to the SNR estimated by the channel at the current moment and the SNR estimated by the channel at a moment before the current moment; obtaining the CQI of the current moment according to the SNR predicted value of the current moment; and reporting the CQI of the current moment to a base station. The CQI reporting method and the user equipment in the embodiment of the invention are used for obtaining and reporting the CQI of the current moment according to the SNR predicted value of the current moment to make the reported CQI be closer to the current actual channel quality so as to guarantee the reported CQI to reflect the fading characteristics of the current channel in time to improve the network performance.

Description

technical field [0001] The present invention relates to the field of communications, and more particularly, to a method for reporting channel quality indicators and user equipment. Background technique [0002] In a High-Speed ​​Packet Access (HSPA) network, channel quality indication (CQI) reporting is a key part of the High-Speed ​​Downlink Packet Access (HSDPA) service, and the CQI reporting Timeliness and accuracy directly affect the throughput performance of downlink services. Since CQI evaluation needs to sample a certain number of samples, and requires a certain amount of processing time in implementation, which brings delay in implementation, it is impossible to guarantee that the reported CQI can reflect the fading characteristics of the current channel in a timely manner, that is, the reported CQI and the current actual channel quality will be different. deviation. Contents of the invention [0003] Embodiments of the present invention provide a CQI reporting m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/00
Inventor 张家佶
Owner HONOR DEVICE CO LTD