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Method for transporting downlink control information

A technology for controlling information and information blocks, which can be used in wireless communication, link quality-based transmission modification, diversity/multi-antenna systems, etc., and can solve problems such as prohibition

Active Publication Date: 2012-12-19
HIGHBRIDGE PRINCIPAL STRATEGIES LLC AS COLLATERAL AGENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In wireless communication systems that can transmit multiple codewords at the same time, specific codewords may prohibit

Method used

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  • Method for transporting downlink control information
  • Method for transporting downlink control information
  • Method for transporting downlink control information

Examples

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Embodiment Construction

[0032] Reference will now be made in detail to exemplary embodiments of the invention, examples of which are illustrated in the accompanying drawings. The following detailed description, given with reference to the accompanying drawings, is intended to explain exemplary embodiments of the present invention, rather than to show the only embodiments that can be implemented according to the present invention.

[0033] The following detailed description includes specific details in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without these specific details. In some cases, in order to prevent the concept of the present invention from being obscured, well-known constructions and / or devices are omitted or shown in the form of block diagrams, focusing on the structures and / or devices important features. The same reference numerals are used throughout this specif...

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Abstract

A method for efficiently transmitting downlink control information is described. A method for transmitting control information in a multiple antenna system which can simultaneously transmit a maximum of two codewords includes transmitting modulation and coding scheme (MCS) information, a new data indicator (NDI) and a redundancy version (RV) for information blocks transmitted through the two codewords, and transmitting additional control information including at least one of a swapping indicator and enable / disable information. The swapping indicator indicates whether or not swapping occurs between the information blocks transmitted through the two codewords, and the enable / disable information indicates whether or not any one of transmissions through the two codewords is disabled. The swapping indicator is reserved when any one of transmissions through the two codewords is disabled, thereby reducing signaling overhead and efficiently transmitting necessary information.

Description

technical field [0001] The present invention relates to a multi-antenna communication system, and more specifically, to a method for efficiently transmitting downlink control information including codeword swapping information and codeword enable / disable information. Background technique [0002] Error control algorithms used in current communication systems can be roughly classified into Automatic Repeat Request (ARQ) schemes and Forward Error Correction (FEC) schemes. ARQ schemes include stop-and-wait ARQ, fallback NARQ, selective retransmission ARQ, and the like. Stop and wait ARQ refers to a scheme of transmitting the next frame after confirming whether or not the transmission frame has been accurately received. Regression-N ARQ refers to a scheme in which N consecutive data frames are sent, and if the sending is unsuccessful, all data frames following the error frame are retransmitted. Selective retransmission ARQ refers to a scheme for selectively retransmitting only...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/06H04B7/02
CPCH04B1/7115H04L1/0003H04L1/1812
Inventor 金昭延郑载薰石智爱李文日高贤秀
Owner HIGHBRIDGE PRINCIPAL STRATEGIES LLC AS COLLATERAL AGENT