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Transmission method and communication device

A technology of transmission method and transmission resources, which is applied in the field of transmission method and communication device, can solve problems such as implementation complexity, and achieve the effect of simplifying behavior and reducing implementation complexity

Active Publication Date: 2020-08-25
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the current technology, before the hybrid automatic repeat request (HARQ) feedback for transmitting downlink data in an unlicensed cell, the terminal device needs to perform a back-off-based channel access process to obtain a channel to transmit the HARQ for the downlink data. Feedback, the process is more complicated to implement

Method used

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  • Transmission method and communication device
  • Transmission method and communication device
  • Transmission method and communication device

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Embodiment Construction

[0095] The technical solution in this application will be described below with reference to the accompanying drawings.

[0096] The technical solutions of the embodiments of the present application can be applied to various communication systems, for example, but not limited to, narrow band-internet of things (NB-IoT), global system of mobile communication (GSM) systems, Code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD), universal mobile telecommunications system (universal mobile telecommunications system, UMTS), global interconnection microwave access (worldwide interoperability for microwave access (WiMAX) communication system, the future fifth generation (5th generation, 5G) system or new radio (new radio, NR), ...

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Abstract

The invention provides a transmission method and a communication device that are aimed to simplify LBT behaviors of terminal equipment before HARQ feedback and reduce the implementation complexity. The method comprises the following steps: receiving first DCI, wherein the first DCI is used for indicating or activating downlink transmission resources; receiving downlink data on the downlink transmission resource; receiving second DCI, wherein the second DCI is used for indicating an uplink transmission resource, and the uplink transmission resource is used for transmitting feedback informationof downlink data; sending the feedback information on an uplink transmission resource.

Description

technical field [0001] The present application relates to the communication field, and more specifically, to a transmission method and a communication device. Background technique [0002] In order to improve spectrum utilization, wireless communication systems can transmit data in unlicensed frequency bands. Communication devices, such as terminal devices or network devices, need to complete the channel access process (or in other words, listen before speaking) before data transmission. before talk, LBT)) to access the channel. The channel access process includes a fixed-duration-based channel access process and a back-off-based channel access process. After the channel access process is completed, the communication device can use the channel for a period of time, which is called the channel occupation time. (channel occupancy time, COT). [0003] In the current technology, before the hybrid automatic repeat request (HARQ) feedback for transmitting downlink data in an unl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L5/00H04W72/04H04W72/12H04L1/16
CPCH04L5/0053H04L1/1607H04W72/23H04L5/0055H04L5/0094H04L5/001H04W74/0808H04L1/1896H04L1/1854H04L1/1822Y02D30/70H04W72/0446H04W76/28H04L1/1819H04W74/006H04W74/0816
Inventor 酉春华黄曲芳郭英昊娄崇
Owner HUAWEI TECH CO LTD