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HARQ configuration method and feedback method, base station and user equipment

A technology of user equipment and configuration method, applied in the field of communication, can solve the problems of low utilization rate of resources, waste of communication resources, etc., and achieve the effects of improving utilization rate, improving efficiency, and improving flexibility and efficiency.

Active Publication Date: 2017-05-31
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned HARQ configuration method may lead to waste of communication resources and low resource utilization

Method used

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  • HARQ configuration method and feedback method, base station and user equipment
  • HARQ configuration method and feedback method, base station and user equipment
  • HARQ configuration method and feedback method, base station and user equipment

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Embodiment Construction

[0039] figure 1 It shows a schematic diagram of a HARQ configuration and feedback process in the prior art. At present, the base station first schedules fixed data resources for transmitting confirmation information through a physical downlink control channel (Physical Downlink Control Channel, PDCCH), and then the base station in the downlink The physical downlink shared channel (Physical Downlink Shared Channel, PDSCH) transmits data, and the acknowledgment information including ACK or NACK corresponding to the data transmitted by PDSCH is on the fixed physical uplink control channel (Physical Uplink Control Channel, PUCCH) or physical uplink shared channel (Physical Uplink Shared Channel, PUSCH). When the UE decodes data incorrectly, the UE sends detailed NACK information to the base station. And in the LTE system, in order to avoid conflicts or overlaps with transmissions such as system information and multicast / multicast single frequency network (Multimedia Broadcast Mul...

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PUM

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Abstract

The invention relates to an HARQ configuration method and feedback method, a base station and user equipment. The configuration method comprises the following steps: sending indication information to the user equipment so as to indicate a basic confirmation information transmission channel, wherein the basic confirmation information transmission channel is suitable for the user equipment to feed back basic confirmation information, and the basic confirmation information includes any one of ACK or NACK; transmitting data including multiple blocks to the user equipment; when the basic confirmation information including the NACK is received, sending expanded NACK authorization information to the user equipment, wherein the expanded NACK authorization information is suitable for indicating the user equipment to transmit channel resources of an expanded NACK; and receiving the expanded NACK transmitted by the user equipment according to indication of the expanded NACK authorization information, wherein the expanded NACK includes incorrect block information; and retransmitting incorrect blocks to the user equipment. By utilizing the scheme, the utilization rate of communication resources can be increased.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a HARQ configuration method, a feedback method, a base station and user equipment. Background technique [0002] For the enhanced-Mobile Broadband (eMBB) service with high speed and large bandwidth of 5G, the uplink data transmission adopts the low density parity check code (Low Density Parity Check Code, LDPC) encoding method, and the peak rate of uplink data transmission is as high as 15Gbps, at this time, each transport block (Transport Block, TB) of data transmission is relatively large, and the number of code blocks (Code Blocks, CBs) in each TB block may also be several times that of LTE communication. The single-bit (Hybrid Automatic Repeat Request, HARQ) feedback ACK / NACK scheme needs to retransmit the entire TB when the channel state is not good and the user equipment (User Equipment, UE) decodes the data incorrectly. block, at this time the data throughp...

Claims

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Application Information

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IPC IPC(8): H04L1/18H04L1/20
CPCH04L1/1887H04L1/1896H04L1/20
Inventor 李维成
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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