Method and device for controlling uplink power
View Patent ↗The present application provides a method and a device for controlling uplink power. The method includes: receiving, by a terminal device, uplink power control information transmitted by a network device; determining, by the terminal device, according to the uplink power control information, a target power control parameter corresponding to a target transmission mode, where the target transmission mode is a target uplink multiple access mode, or a target uplink beam, or a target uplink precoding scheme, or a target transmission scheduling scheme; and determining, by the terminal device, according to the target power control parameter, target transmitting power for transmitting a target uplink signal using the target transmission mode. The method and the device for controlling uplink power provided in the present application can flexibly adjust the uplink transmitting power to meet the requirements of different transmission modes, and are suitable for a communication system supporting multiple transmission modes.
1. A method for controlling uplink power, comprising:
receiving, by a terminal device, uplink power control information transmitted by a network device, wherein the uplink power control information comprises open-loop power control information, and the open-loop power control information comprises open-loop power control parameters corresponding to multiple uplink beams comprising the target uplink beam;
determining, by the terminal device, according to the uplink power control information, a target power control parameter corresponding to the target uplink beam; and
determining, by the terminal device, according to the target power control parameter, target transmitting power for transmitting a target uplink signal using the target uplink beam;
wherein the determining, by the terminal device, according to the uplink power control information, the target power control parameter corresponding to the target uplink beam comprises:
determining, by the terminal device, according to the open-loop power control information, a target open-loop power control parameter corresponding to the target uplink beam from the open-loop power control parameters.
2. The method according to claim 1 , wherein the target uplink beam is one of multiple candidate target uplink beams for the terminal device to transmit the target uplink signal; or the target uplink beam is an uplink beam required for the terminal device to transmit the target uplink signal.
3. The method according to claim 1 , wherein the target open-loop power control parameter comprises at least one of following parameters: uplink objective receiving power, a path loss factor, and a Sounding Reference Signal (SRS) power adjustment value.
4. The method according to claim 1 , further comprising:
transmitting, by the terminal device, the target uplink signal to the network device using the target uplink beam and the target transmitting power.
5. The method according to claim 1 , wherein the target uplink signal is one of following signals: a Physical Uplink Shared Channel (PUSCH), a Physical Uplink Control Channel (PUCCH), an SRS, and a De Modulation Reference Signal (DMRS).
6. A terminal device, comprising a processor, a memory and a transceiver, the processor, the memory and the transceiver communicating with each other through an internal connection path, wherein:
the transceiver is configured to receive uplink power control information transmitted by a network device, wherein the uplink power control information comprises open-loop power control information, and the open-loop power control information comprises open-loop power control parameters corresponding to multiple uplink beams comprising a target uplink beam;
the processor is configured to determine, according to the uplink power control information, a target power control parameter corresponding to the target uplink beam; and determine, according to the target power control parameter, target transmitting power for transmitting a target uplink signal using the target uplink beam;
wherein the processor is configured to: determine, according to the open-loop power control information, a target open-loop power control parameter corresponding to the target uplink beam from the open-loop power control parameters.
7. The terminal device according to claim 6 , wherein the target uplink beam is one of multiple candidate uplink beams for the terminal device to transmit the target uplink signal; or the target uplink beam is an uplink beam required for the terminal device to transmit the target uplink signal.
8. The terminal device according to claim 6 , wherein the target open-loop power control parameter comprises at least one of following parameters: uplink objective receiving power, a path loss factor, and a Sounding Reference Signal (SRS) power adjustment value.
9. The terminal device according to claim 6 , wherein the transceiver is further configured to: transmit the target uplink signal to the network device using the target uplink beam and the target transmitting power.
10. The terminal device according to claim 6 , wherein the target uplink signal is one of following signals: a Physical Uplink Shared Channel (PUSCH), a Physical Uplink Control Channel (PUCCH), an SRS, and a De Modulation Reference Signal (DMRS).
11. A network device, comprising a processor, a memory and a transceiver, the processor, the memory and the transceiver communicating with each other through an internal connection path, wherein:
the processor is configured to determine uplink power control information, wherein the uplink power control information is used for a terminal device to determine a target power control parameter corresponding to a target uplink beam and to determine, according to the target power control parameter, target transmitting power for transmitting a target uplink signal using the target uplink beam; and
the transceiver is configured to transmit the uplink power control information to the terminal device;
wherein the uplink power control information comprises open-loop power control information, the open-loop power control information comprises open-loop power control parameters corresponding to multiple uplink beams comprising the target uplink beam, and the open-loop power control information is used for the terminal device to determine a target open-loop power control parameter corresponding to the target uplink beam from the open-loop power control parameters.
12. The network device according to claim 11 , wherein the target uplink beam is one of multiple candidate uplink beams for the terminal device to transmit the target uplink signal; or the target uplink beam is an uplink beam required for the terminal device to transmit the target uplink signal.
13. The network device according to claim 11 , wherein the target open-loop power control parameter comprises at least one of following parameters: uplink objective receiving power, a path loss factor, and a Sounding Reference Signal (SRS) power adjustment value.
14. The network device according to claim 11 , wherein the transceiver is further configured to: receive the target uplink signal transmitted by the terminal device using the target uplink beam and the target transmitting power.
15. The network device according to claim 11 , wherein the target uplink signal is one of following signals: a Physical Uplink Shared Channel (PUSCH), a Physical Uplink Control Channel (PUCCH), an SRS, and a De Modulation Reference Signal (DMRS).