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Communication method and device

A communication method and channel technology, applied in the field of communication, can solve the problem of not being able to find PDSCHPDCCH monitoring opportunities, etc.

Active Publication Date: 2020-12-15
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the downlink BWP activated at this time is only downlink BWP 1, the terminal will check whether there is a PDCCH monitoring opportunity on downlink BWP 1, but if PDCCH is transmitted on downlink BWP0, and the scheduled PDSCH is transmitted on downlink The problem that the PDCCH monitoring opportunity corresponding to the PDSCH cannot be found on the downlink BWP1

Method used

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  • Communication method and device
  • Communication method and device
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Embodiment Construction

[0079] figure 1 A schematic diagram of a communication system provided by an embodiment of the present application, such as figure 1 As shown, the communication system includes network devices and terminals.

[0080] Below, some terms in this application are explained, so that those skilled in the art can understand:

[0081] Network equipment: also known as radio access network (Radio Access Network, RAN) equipment, is a device that connects terminals to wireless networks, and can be an evolved base station (Evolutionary Base Station) in Long Term Evolution (LTE). Node B, eNB or eNodeB), or a relay station or an access point, or a base station in a 5G network, such as a transmission and reception point (Transmission and Reception Point, TRP), and a controller, which are not limited here. In a possible manner, the radio access network device may be a base station (such as a gNB) in a structure in which the CU and the DU are separated.

[0082]Terminal: It can be a wireless ...

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Abstract

The embodiment of the present application provides a communication method and device, the method includes: the terminal determines the second time domain resource according to the first time domain resource and the first information; the first time domain resource is the time domain resource of the PDSCH candidate position, and the second The second time domain resource is the time domain resource of the PDCCH candidate position, the first information includes or indicates the time interval between the PDSCH candidate position and the PDCCH candidate position; within the time range corresponding to the second time domain resource, search for the PDCCH on at least one downlink BWP The listening opportunity: at least one downlink BWP includes: all downlink BWPs configured by the network device to the terminal, or all downlink BWPs configured by the network device to the terminal and activated within the time range corresponding to the second time domain resource. Therefore, all PDCCH monitoring opportunities corresponding to the PDSCH can be found, so as to avoid missing PDCCH monitoring opportunities and missing data confirmation information of downlink data, thereby improving communication quality.

Description

technical field [0001] The embodiments of the present application relate to the field of communication technologies, and in particular, to a communication method and device. Background technique [0002] Generally, after the receiving end receives the data sent by the sending end, it sends data confirmation information to the sending end. If the data received by the receiving end is correct, the data confirmation information sent by the receiving end to the sending end is positive confirmation information (ACK). If the data received by the receiving end is wrong, the data acknowledgment information sent by the receiving end to the sending end is negative acknowledgment information (NACK). Taking the downlink transmission between the base station and the terminal as an example, when the terminal feeds back the data acknowledgment information to the base station, it may transmit the data acknowledgment information of multiple physical downlink shared channels (PDSCH) (used to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/16H04L5/00H04W72/04
CPCH04L1/1607H04L5/0078H04W72/0446H04W72/20H04L1/16H04W72/04H04L5/00H04W80/00
Inventor 薛祎凡彭金磷王键刘海涛
Owner HUAWEI TECH CO LTD
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