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Method and device for treating control information in multi-input/multi-output communication system

A technology of communication system and control information, applied in the field of frame structure, which can solve the problem of high data recovery performance

Inactive Publication Date: 2010-01-06
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Encoding is performed only in temporal dimensions, so its data recovery performance is not as high as that of space-time encoding used in single-rate systems

Method used

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  • Method and device for treating control information in multi-input/multi-output communication system
  • Method and device for treating control information in multi-input/multi-output communication system
  • Method and device for treating control information in multi-input/multi-output communication system

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Embodiment Construction

[0054] The present invention proposes a method for efficiently transmitting control information for controlling each transmission antenna in a MIMO system, whereby signals transmitted from each transmission antenna of the MIMO system can be controlled in real time.

[0055] When the related art HSDPA system is applied to the MIMO system, different data transmission rates (modulation and coding) are applied to each transmission antenna according to the channel situation of each transmission antenna, so that the transmission rate of each transmission antenna can be independently controlled more precisely. data transfer rate.

[0056] For this purpose, the receiving end must feed back certain control information to each transmit antenna, and in this case, the certain control information includes ACK / NACK, CQI, and FB[(feedback information) for HARQ.

[0057] The CQI includes information on the transport block size and modulation method, information on the number of HS-DSCHs, and ...

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Abstract

A frame structure of an uplink control information transport channel in the MIMO communication system using multiple transmission antennas and multiple reception antennas, constructed such that an uplink control information transport channel for transmitting control information with respect to each of the multiple transmission antennas includes three fields: a field for acknowledgement (ACK) / negative acknowledgement (NACK) for HARG (hybrid automatic retransmission request), a field for CQI (channel quality information) and a field for weight value information with respect to each transmission antenna. Because the control information for controlling each transmission antenna is effectively transmitted, signals transmitted at each transmission antenna of the MIMO system can be controlled in real time.

Description

technical field [0001] The present invention relates to a frame structure for an uplink control information transmission channel of a communication system called a multiple-input / multiple-output (MIMO) system in which multiple antenna. Background technique [0002] figure 1 and 2 Indicates a related art MIMO communication system that adopts the PARC (Per-Antenna Rate Control) method. [0003] PARC refers to a V-BLAST (Vertical Bell Laboratories Layered Space Time) system, a traditional technology of the MIMO system, in which the symbol of the signal refers to the channel information determined at the receiving end according to each transmission antenna at the transmitting end. Channel coded and modulated differently, and then the corresponding signal is transmitted via each transmit antenna. [0004] figure 1 is a view showing the configuration of a transmitting side of a related art MIMO communication system employing the PARC method. now refer to figure 1 The operat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/02H04B7/04H04B7/06H04B7/08
CPCH04B7/0634H04B7/0854H04B7/0632H04B7/0697
Inventor 沈东熙徐东延金奉会
Owner LG ELECTRONICS INC