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Hybrid automatic repeat request feedback method, base station and user equipment

A technology of hybrid automatic retransmission and user equipment, applied in the field of communication, can solve problems such as high power

Active Publication Date: 2018-03-13
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Embodiments of the present invention provide a hybrid automatic repeat request feedback met

Method used

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  • Hybrid automatic repeat request feedback method, base station and user equipment
  • Hybrid automatic repeat request feedback method, base station and user equipment
  • Hybrid automatic repeat request feedback method, base station and user equipment

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Embodiment Construction

[0183] 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 making creative efforts belong to the protection scope of the present invention.

[0184] The technology described in this article can be used in various communication systems, such as current 2G, 3G communication systems and next-generation communication systems, such as Global System for Mobile Communications (GSM, Global System for Mobile communications), Code Division Multiple Access (CDMA, Code Division Multiple Access...

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Abstract

The present invention provides a hybrid automatic repeat request (HARQ) feedback method, a base station, and a user equipment. The method comprises: a base station determining a process group, wherein the process group comprises at least two processes; the base station invoking a process to send downlink data to a user equipment; and the base station receiving, at a feedback time corresponding to the process group, HARQ acknowledgement information sent by the user equipment. Therefore, the power required for HARQ feedback is reduced.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a hybrid automatic repeat request feedback method, base station and user equipment. Background technique [0002] High-Speed ​​Downlink Packet Access (HSDPA) technology uses Hybrid Automatic Repeat Request (HARQ) for transmission, and the time from sending data to receiving confirmation for a HARQ process is fixed Yes, the HARQ process cannot continue to transmit data until the acknowledgment is received. [0003] In the prior art, for continuous data transmission, a user equipment (User Equipment, UE for short) needs to support simultaneous transmission of six HARQ processes to meet the requirement for continuous data transmission. In order to ensure that each process can be confirmed as soon as possible for the next data transmission, each HARQ process performs separate feedback. However, this makes the power of uplink feedback relatively large. Contents of t...

Claims

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Application Information

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IPC IPC(8): H04L1/18
CPCH04L1/1822
Inventor 李秉肇陈燕燕冯莉
Owner HUAWEI TECH CO LTD