Indication method and user equipment

A technology of user equipment and indication, applied in the field of communication, can solve the problems of reducing the accuracy of data transmission, unable to decode TB1 correctly, etc., and achieve the effect of improving decoding reliability and accuracy

Active Publication Date: 2013-06-05
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing LTE system introduces Hybrid Automatic Repeat reQuest (HARQ) technology. If in the space division multiplexing transmission mode, DCI 2A or DCI2 is used to indicate that codeword 0 and codeword 1 are used to transmit TB0 and codeword 1, respectively. When TB1, it is necessary to switch to other modes and use DCI 1A to indicate, and when it is necessary to indicate to use codeword 0 to retransmit TB1, the existing user equipment cannot correctly decode TB1 and discard it, which reduces the accuracy of data transmission

Method used

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  • Indication method and user equipment

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Embodiment Construction

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0018] In the embodiment of the present invention, the type of the transport block can be divided into two types: 0 and 1, that is, the transport block is divided into two types: TB0 and TB1.

[0019] figure 1 A schematic flow chart of the indicating method provided for an embodiment of the present invention, such as figure 1 As shown, the indic...

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Abstract

The embodiment of the invention provides an indication method and user equipment. The method comprises the following steps: acquiring downlink control information of 1A format, wherein the downlink control information of the 1A format comprises a transmission block index; receiving a transmission block indicated by the transmission block index; placing the transmission block in a decoding buffer area corresponding to the transmission block; and decoding the transmission block.

Description

technical field [0001] Embodiments of the present invention relate to communication technologies, and in particular to an indication method and user equipment. Background technique [0002] In a long term evolution (Long Term Evolution, LTE) system, downlink control information (Downlink Control Information, DCI) is carried by a downlink physical control channel (Physical Downlink Control Channel, PDCCH). According to different transmission modes, it can correspond to various formats of DCI. For example, the open-loop space division multiplexing transmission mode can use 2A format DCI (DCI 2A), and the closed-loop space division multiplexing transmission mode can use 2 format DCI (DCI 2A). 2), any transmission mode can use 1A format DCI (DCI 1A), etc. In open-loop space-division multiplexing transmission mode or closed-loop space-division multiplexing transmission mode, DCI 2A or DCI 2 can indicate to transmit two transport blocks on two codewords (codeword 0 and codeword 1...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): H04L1/00H04L1/18
Inventor赵俊陈召娣吕欣岩费钟鑫
OwnerHUAWEI TECH CO LTD