Method and device for channel quality indication calibrating and base station dispatching users data

A technology for channel quality indication and user scheduling, which is used in digital transmission systems, communication between multiple stations, and transmission control/equalization to achieve the effects of suppressing excessive variance, avoiding influence, and smoothing processing.
CN100426714CActive Publication Date: 2008-10-15XFUSION DIGITAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XFUSION DIGITAL TECH CO LTD
Publication Date
2008-10-15

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Abstract

This invention discloses a method and a device for calibrating channel quality instructions and dispacthing user data, the principle is that when a base station down high speed packet accesses the dispatched user data, it calibrates the channel quality instruction fed back by the user device then determines the transmission format of the data corresponding to the calibrated channel quality instruction and finally dispatches the user data to transmit them based on said determined transmission format, which carries out adaptive calibration to the channel quality instructions fed back by a user device to guarantee that the initial transmission BER, the statistic BER or residual BER will get the designed target value so as to fully utilize the gain brought with the adaptive modulation code and mixed automatic re-transmission requirement technology accessed by the down high speed packet.
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Description

technical field

[0001] The present invention relates to the technical field of High Speed ​​Downlink Packet Access (HSDPA), more specifically, the present invention relates to a method and device for HSDPA channel quality indication calibration and base station scheduling user data. Background technique

[0002] HSDPA is a key technology for wideband code division multiple access system to improve downlink peak transmission rate and system spectrum efficiency. HSDPA adopts adaptive modulation and coding (Adaptive Modulate and Coding, AMC) and hybrid automatic repeat request (Hybrid Automatic Repeat Request, HARQ) technology: AMC technology mainly uses the channel quality indicator ( Channel Quality Indicator (CQI) information selects an appropriate transmission block length, and the HARQ technology improves data transmission efficiency through retransmission combining at the physical layer.

[0003] The measurement process of the CQI fed back by the UE is: the system notifi...

Claims

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