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Method for receiving and transmitting signals and communication device

A technology for receiving signals and signals, which is applied to the separation device of the transmission path, wireless communication, pilot signal distribution, etc., and can solve problems such as the inability to judge the receiving beam

Active Publication Date: 2022-04-29
CHENGDU HUAWEI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in some scenarios, such as cross-carrier scheduling, when a network device transmits PDCCH on one CC and transmits PDSCH on another CC, the terminal device may receive TCI status from both CCs
End devices may not be able to determine which CC's TCI status to use to determine the receive beam

Method used

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  • Method for receiving and transmitting signals and communication device
  • Method for receiving and transmitting signals and communication device
  • Method for receiving and transmitting signals and communication device

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Experimental program
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Embodiment Construction

[0100] The technical solution in this application will be described below with reference to the accompanying drawings.

[0101] The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: global system for mobile communications (GSM) system, code division multiple access (code division multiple access, CDMA) system, wideband code division multiple access (wideband code division multiple access (WCDMA) system, general packet radio service (general packet radio service, GPRS), long term evolution (long termevolution, LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (time division duplex, TDD), universal mobile telecommunication system (universal mobile telecommunication system, UMTS), global interconnection microwave access (worldwide interoperability for microwave access, WiMAX) communication system, future fifth generation (5th generation, 5G) system or new Wireless (new ra...

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PUM

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Abstract

The present application provides a method for receiving and sending a signal and a communication device, which is beneficial to improving the transmission quality of the signal. The method includes: the terminal device receives first indication information from the network device on the first CC, the first indication information is used to indicate the BWP transmitting the downlink signal and the second CC to which the BWP belongs; the terminal device and the network device respectively according to The second CC and the BWP determine a first mapping relationship from a plurality of pre-acquired mapping relationships, where the first mapping relationship is used to indicate a correspondence between at least one TCI state and at least one TCI, and may be based on the first mapping relationship and TCI to determine the TCI state, the network device can determine the transmit beam for sending the downlink signal based on the TCI state, and send the downlink signal based on the transmit beam; the terminal device can determine the receive beam for receiving the downlink signal based on the TCI state, and based on the receive beam Receive downlink signal.

Description

technical field [0001] The present application relates to the field of wireless communication, and more particularly, to methods and communication devices for receiving and transmitting signals. Background technique [0002] In order to further increase the transmission bandwidth, a carrier aggregation (carrier aggregation, CA) technology is introduced into Long Term Evolution-Advanced (LTE-A). Carrier aggregation mainly aggregates multiple carrier units (component carrier, CC, or component carrier, component carrier, carrier, etc.) into a carrier with a relatively large bandwidth to support high-speed data transmission. In carrier aggregation, it is allowed to schedule another CC to transmit data on one CC, for example, physical downlink control channel (physical downlink control channel, PDCCH) and physical downlink shared channel (physical downlink shared channel, PDSCH) are in the same CC or different CCs middle. [0003] On the other hand, in a high-frequency scenario...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04L5/00
CPCH04W72/046H04L5/0053H04W72/0453H04L5/001H04W72/23H04L5/0094H04L5/0023H04L5/0058H04L5/005H04L5/0048H04B7/0695H04B7/088H04L5/0037H04W80/02H04W72/53
Inventor 管鹏陈雷张希
Owner CHENGDU HUAWEI TECH