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Data transmission control method, transceiver and system

A technology of data transmission control and transceiver, applied in multi-frequency code system, diversity/multi-antenna system, space transmit diversity, etc., can solve problems such as simplifying H-ARQ mechanism and separate control, so as to improve system throughput, Easy to control the effect of long, good BLER performance

Inactive Publication Date: 2007-09-26
HUAWEI TECH CO LTD
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Problems solved by technology

[0017] The present invention provides a data transmission control method, a transceiver, and a data transmission control system in a multiple-input multiple-output system, so as to solve the problem that the H-ARQ mechanism cannot be simplified in the prior art, and at the same time, each transmitting antenna can be realized. separate control issues

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  • Data transmission control method, transceiver and system
  • Data transmission control method, transceiver and system
  • Data transmission control method, transceiver and system

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Embodiment Construction

[0078] The first embodiment of the present invention is to reserve the H-ARQ mechanism of the SCW mode, and select the corresponding modulation mode according to the average channel quality information fed back at the transmitting end; at the same time, the MCW mode can be correspondingly processed according to the channel of each transmitting antenna The advantage is that the receiving end feeds back the proportional relationship between the current transmitting antenna qualities, and the transmitting end performs independent rate matching on each transmitting antenna according to the quality of each transmitting antenna. After the channel encoder is fixed, the final transmitted data volume and encoding are maintained. The proportion of the previous data volume remains unchanged.

[0079] For the convenience of description, the following physical quantities are first defined:

[0080] M is the number of transmitting antennas;

[0081] i is the serial number of the transmitti...

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Abstract

The invention relates to mobile communication technology, specially a data transmission control method in MIMO system, receiver and data transmission control system, the problem that simplifying H-ARQ mechanism in current technology and every emission antenna can be controlled at the same time is resolved. Said method includes: receiving end ensures the speed matching relationship of every emission antenna in corresponding TTI and feedback to the sending end; sending end ensures speed matching relationship of every emission antenna in next TTI and executes speed matching. And, the receiving end ensures average modulating mode or modulating mode of every emission antenna and feedback to the sending end; the sending end modulates data which is to be transmitted in next TTI based on the feedback modulating mode. A speed matching and executing module is connected with every emission antenna of said multi antenna receiver.

Description

technical field [0001] The invention relates to mobile communication technology, in particular to a data transmission control method, a transceiver and a data transmission control system in a MIMO multiple-input multiple-output system. Background technique [0002] The application of MIMO (Multi-Input Multi-Output) technology in wireless communication systems has attracted more and more attention. Whether it is from the perspective of increasing system capacity or improving system performance, MIMO has its irreplaceable Superiority. In MIMO technology, in order to transmit data more efficiently, it is necessary to control the data rate of the transmitting end, which requires the transmitting end to know some channel information through feedback, dynamically adjust the data rate, and even adjust the transmission rate of each transmitting antenna. [0003] At the same time, MIMO technology is usually combined with adaptive coding and modulation (AMC) technology. Among them, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/04H04L27/26H04B7/26
Inventor 刘晟杜颖钢
Owner HUAWEI TECH CO LTD
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