Method for receiving mobile station reverse channel quality indicating channel of CDMA base station

A channel quality indication and quality indication technology, applied in the field of CDMA mobile communication, can solve problems such as increasing the failure rate of packet transmission, wasting transmission capacity, and reducing anti-interference ability of transmission

Inactive Publication Date: 2004-09-15
ZTE CORP
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Problems solved by technology

[0003] Each packet sent to the forward packet data channel must set a certain modulation mode, including parameters such as time slot length, modulation order and number of WALSH code channels. The setting of these parameters determines the expected data parameter rate and transmission of the channel. Anti-interference ability, the expected data transmission rate of the modulation mode and the anti-interference ability of the transmission are inversely pr...

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  • Method for receiving mobile station reverse channel quality indicating channel of CDMA base station
  • Method for receiving mobile station reverse channel quality indicating channel of CDMA base station

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Embodiment Construction

[0034] The basic idea of ​​the present invention is as follows: in the CDMA 1XEV-DV system, the CQI information sent by the mobile station on the reverse channel quality indication channel is the basis for the base station to decide to send the packet modulation mode on the forward packet data channel, and the base station receives the CQI information The accuracy of information has a key impact on the data transmission speed of the forward packet data channel. Since the unbalanced transmission conditions of the forward and reverse links are common, the BTS where the forward packet data channel currently monitored by the mobile station may not receive it correctly. The CQI information sent by the mobile station on the reverse channel quality indicator channel can correctly receive the BTS that the mobile station sends the CQI information on the reverse channel quality indicator channel, and does not send the forward packet data channel packet to the mobile station, and this The...

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Abstract

The system composed of base station controller including unit of selecting distribution, multiple base station transmitterrceiver including function unit for controlling packet data channel, and mobile station receives CQI information sent by mobile station through following method: corresponding BTS of all channels supporting forward packet data in current effective set pilot carrier of mobile station receive channel information of quality indication in backward channel at same time; information synchronization is carried out at base station controller in mode of combining active reporting with passive querying, and real time updating is carried out by working BTS of forward packet data channel in mobile station. Advantages of the invention are: preventing a great lot of message of reported CQI information from appearing on Abis port, giving play to receiving capability furthest, maximized accuracy for CQI information timely.

Description

technical field [0001] The invention relates to the field of CDMA (Code Division Multiple Access) mobile communication, in particular to a method for receiving a Reverse Channel Quality Indicator Channel (Reverse Channel Quality Indicator Channel) by a base station in a CDMA 1XEV-DV (1 carrier enhanced data and voice) system. Background technique [0002] The CDMA 1XEV-DV system is an upgraded device of the CDMA 1X system, which can provide both voice and data services on the same carrier frequency. On the basis of being fully compatible with CDMA 1X functions, the forward wireless data transmission rate can theoretically reach up to '3.1Mbps / This is mainly due to the fact that the newly added forward packet data channel in the CDMA 1XEV-DV system adopts a modulation technology with higher spectrum efficiency, and then through the forward packet data control channel and the reverse channel quality indicator channel Used in conjunction with the reverse acknowledgment channel...

Claims

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Application Information

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IPC IPC(8): H04B1/707H04B1/76H04B7/26H04L12/56H04W8/20H04W28/22
CPCH04B2201/70701H04W8/20H04W28/22
Inventor 凌柳尧王标
Owner ZTE CORP
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