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Code word acknowledgement information feedback method and communication device

A technology for confirming information and communication devices, applied in the field of communication, can solve problems such as PMI cannot be used, affect eNB flexibility, affect system capacity and spectrum efficiency, and achieve the effect of ensuring capacity and spectrum efficiency and saving signaling overhead

Inactive Publication Date: 2011-08-17
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PMI and RI are used to indicate codeword retransmission, resulting in partial PMI being unusable, which affects the flexibility of eNB uplink scheduling, UE uplink adaptive retransmission and UE uplink PMI selection, thereby affecting system capacity and Spectral efficiency

Method used

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  • Code word acknowledgement information feedback method and communication device
  • Code word acknowledgement information feedback method and communication device
  • Code word acknowledgement information feedback method and communication device

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Embodiment Construction

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0020] like figure 1 As shown, an embodiment of the present invention provides a feedback method of codeword confirmation information, the method comprising:

[0021] Step 101: Receive a codeword transmitted by a UE.

[0022] Step 102: Determine confirmation information of the codeword.

[0023] Step 103: Feedback the acknowledgment information of the codeword to the UE through the physical downlink control channel PDCCH.

[0024] In this embodiment, the confirmation information of the code word is fed back through the physical downlink control ...

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Abstract

The invention provides a code word acknowledgement information feedback method, which comprises the following steps of: receiving a code word from user equipment (UE); determining the acknowledgement information of the code word; and feeding the acknowledgement information of the code word back to the UE by using a physical downlink control channel (PDCCH). Single code words are transmitted by the method to realize the repeat and feedback of each code word in an uplink code word pair without increasing signaling overhead, thereby saving uplink resources and the transmission power of the user equipment and ensuring the capacity of a system and spectrum effects; and the acknowledgement information of the single uplink code word can be fed back without a physical hybrid automatic repeat request indication channel, thereby saving the signaling overhead.

Description

technical field [0001] The present invention relates to the technical field of communication, and in particular to a codeword confirmation information feedback method and a communication device. Background technique [0002] The third generation partnership project (3GPP, Third Generation Partnership Projects) started the third generation (3G, 3rd Generation) long term evolution (LTE, Long Term Evolution) research project in 2005. With the evolved access technology (E-UTRA, Evolved Universal Terrestrial Radio Access) and access network (E-UTRAN, Evolved Universal Terrestrial Radio Access Network), it provides better support for the growing demands of operators and users. [0003] Hybrid Automatic Repeat reQuest (HARQ, Hybrid Automatic Repeat reQuest) technology is one of the key technologies to improve system throughput. It is a combination of forward error correction coding (FEC, Feed-forward Error Correction) and automatic repeat request (ARQ , Automatic RepeatreQuest) me...

Claims

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Application Information

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IPC IPC(8): H04L1/16H04L1/18
Inventor 李琦魏兴
Owner HUAWEI TECH CO LTD
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