Signal transmission method and apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorsLiuliu Ji, Yi Huang, Yuanjie Li
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Abstract
In a signal transmission method, a user equipment receives a first signal from a wireless network device; and the user equipment determines spatial information of a to-be-transmitted second signal based on the first signal, and transmits the to-be-transmitted second signal by using the spatial information. An uplink transmit beam is determined by using related information of a downlink receive beam, so that the UE can efficiently determine spatial information of an uplink signal to be transmitted by the UE.
Claims18
A signal transmission method comprising:
- receiving, by a user equipment (UE), indication information from a second wireless network device, wherein the indication information indicates that spatial information of a first signal is a reference for spatial information of an uplink control signal, wherein the first signal comprises:
- a non-zero-power reference signal for obtaining channel state information or a synchronization signal;
- receiving, by the UE, the first signal from the second wireless network device;
- determining, by the UE, the spatial information of the uplink control signal according to the spatial information of the received first signal;
- and
- transmitting, by the UE, the uplink control signal according to the determined spatial information of the uplink control signal.
An apparatus comprising a processor, coupled with a memory, wherein the processor is configured to execute instructions stored in the memory to cause the apparatus to perform:
- receiving indication information from a second wireless network device, wherein the indication information indicates that spatial information of a first signal is a reference for spatial information of an uplink control signal, wherein the first signal comprises:
- a non-zero-power reference signal for obtaining channel state information or a synchronization signal;
- receiving the first signal from the second wireless network device;
- determining the spatial information of the uplink control signal according to the spatial information of the received first signal;
- and
- transmitting the uplink control signal according to the determined spatial information of the uplink control signal.
A non-transitory processor-readable storage medium having processor-executable instructions stored thereon, wherein the processor-executable instructions, when executed, facilitate:
- receiving indication information from a second wireless network device, wherein the indication information indicates that spatial information of a first signal is a reference for spatial information of an uplink control signal, wherein the first signal comprises:
- a non-zero-power reference signal for obtaining channel state information or a synchronization signal;
- receiving the first signal from the second wireless network device;
- determining the spatial information of the uplink control signal according to the spatial information of the received first signal;
- and
- transmitting the uplink control signal according to the determined spatial information of the uplink control signal.
Dependencies are inferred from the claim text.