Huawei Technologies Co., Limited

Bai Du

Amine Maaref

Peng Zhang

Liang Ma

Jinlin Peng

Toufiqul Islam

Pengpeng Dong

Yongxia Lyu

Huajia Li

This application provides a control information transmission method and a device, and relates to the wireless communications field, to improve data transmission efficiency. The method includes: determining, by a network device, first indication information, where the first indication information is used to indicate whether information transmission on a first time-frequency resource is affected; sending, by the network device, the first indication information through a physical downlink control channel; and receiving, by a terminal device, the first indication information, and determining, based on the first indication information, whether information transmission on a third time-frequency resource is affected, where the third time-frequency resource is a time-frequency resource that is used for downlink information transmission between the terminal device and the network device.

Control information transmission method and device

This application provides a control information transmission method, and relates to the field of wireless communications. The method includes: determining, by a terminal device, whether to monitor an uplink preemption indication (PI) based on whether a time-frequency resource used to transmit uplink data overlaps a reference uplink resource (RUR), to effectively avoid blind detection performed on the uplink PI by terminal devices that do not need to receive the uplink PI, and reduce overheads of blind detection performed on the uplink PI by the terminal devices.

Control information transmission method

Embodiments of this application disclose a data transmission method and apparatus, and relate to the field of wireless communications technologies. According to the embodiments of this application, a first terminal sends first information to a second terminal, where the first information is used to instruct the second terminal to stop using a first resource to send uplink data; and the first terminal uses the first resource to send uplink data.

Data transmission method and apparatus

A wireless communication method is provided, including: determining a scheduled first time-frequency resource, where the first time-frequency resource is scheduled for a transmit end to send first data, and a re-allocated time-frequency resource in the first time-frequency resource is scheduled to send second data; sending, by the transmit end, the second data on the re-allocated time-frequency resource, and sending a part of the first data on a remaining first time-frequency resource other than the re-allocated time-frequency resource; and sending, by the transmit end, a remaining part of the first data that is not sent due to occupation by the second data, by using a supplementary-transmission time-frequency resource that is determined based on the re-allocated time-frequency resource and that is in a second time-frequency resource.

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Shanghai, China

Bai Du