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A communication method and device

A communication method and channel technology, applied in the field of communication, can solve problems such as increased data delay, network equipment cannot schedule retransmission DCI in time, and achieve the effect of reducing delay, reducing time, and reducing delay

Active Publication Date: 2021-07-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] This application provides a communication method and device to solve the problem that network equipment cannot schedule and retransmit DCI in time, resulting in increased data delay

Method used

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Embodiment Construction

[0027] In order to make the purpose, technical solution and advantages of the application clearer, the application will be further described in detail below in conjunction with the accompanying drawings.

[0028] The communication method provided in the present application can be applied to a communication system configured with a discontinuous reception (DRX) mechanism. The architecture of the communication system is as figure 1 As shown, it includes a network device and a terminal device, and uplink data transmission and downlink data transmission are performed between the network device and the terminal device. In the communication system, the terminal device performs uplink data transmission based on the scheduling information sent by the network device. The communication system involved in the embodiments of the present application may be various types of communication systems, for example, it may be long term evolution (long term evolution, LTE), or it may be a fifth ge...

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Abstract

A communication method and device, used to solve the problem that network equipment cannot schedule and retransmit DCI in time, resulting in increased data delay. The method includes: sending a physical uplink channel to a network device, where the physical uplink channel carries HARQ feedback information. And start the downlink hybrid automatic repeat request round-trip time timer at the first time point, and allow the terminal device not to monitor the physical downlink control channel during the timing of the downlink hybrid automatic repeat request round-trip time timer, the first time The point is any time point in the first time period, the starting moment of the first time period is the moment when all the symbols carrying the HARQ feedback information are sent, and the ending moment of the first time period is the moment when all symbols of the HARQ feedback information are sent. The moment of the last symbol of the physical uplink channel.

Description

technical field [0001] The present application relates to the technical field of communication, and in particular to a communication method and device. Background technique [0002] At present, the wireless communication system has designed a connected-discontinuous reception (C-DRX) mechanism to allow the terminal device to periodically enter the sleep state when it is in the radio resource control (radio resource control, RRC) connected state. To monitor the physical downlink control channel (physical downlink control channel, PDCCH), and when the PDCCH needs to be monitored, wake up the terminal device from the sleep state and enter the active state to achieve the purpose of power saving. [0003] In the C-DRX mechanism, after detecting the PDCCH, the terminal device receives a physical downlink shared channel (physical downlink shared channel, PDSCH) according to the downlink scheduling information carried by the PDCCH. After decoding the PDSCH, the terminal device send...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/18H04W72/04H04W76/28
CPCH04L1/1812H04W72/0446H04W76/28H04L1/18H04W72/04
Inventor 张战战铁晓磊花梦
Owner HUAWEI TECH CO LTD