US 12,075,360 B2 · Uplink transmit power determining method and terminal device

Abstract

This application provides example uplink transmit power determining methods and example terminal devices. One example method includes receiving, by a terminal device, a broadcast message that is sent by an access network device and that carries first power control information, where the first power control information is used to determine a modulation and coding scheme (MCS) compensation factor. The terminal device can then determine the MCS compensation factor based on the first power control information. The terminal device can then determine a first candidate uplink transmit power based on the MCS compensation factor. The terminal device can then determine a smaller value in the first candidate uplink transmit power and a second candidate uplink transmit power as a physical uplink shared channel (PUSCH) transmit power. The terminal device can then send PUSCH information in a random access message based on the PUSCH transmit power.

Claims21

Dependent claims

An uplink transmit power determining method, comprising:

determining, by a communications apparatus, a power control adjustment amount, based on a type of physical uplink shared channel (PUSCH) information, wherein the type of the PUSCH information includes PUSCH information in a first-type retransmitted random access message and PUSCH information in a second-type retransmitted random access message, wherein the first-type retransmitted random access message carries PUSCH information without a random access preamble, and the second-type retransmitted random access message carries a random access preamble and PUSCH information;
determining, by the communications apparatus, a first candidate uplink transmit power based on the power control adjustment amount;
determining, by the communications apparatus, a smaller value in the first candidate uplink transmit power and a second candidate uplink transmit power as a PUSCH transmit power, wherein the second candidate uplink transmit power is determined based on a maximum transmit power supported by the communications apparatus;
and
sending, by the communications apparatus, PUSCH information in a random access message based on the PUSCH transmit power.

2 more elements

A communications apparatus, comprising:

at least one processor configured with processor-executable instructions to perform operations comprising:
determining a power control adjustment amount, based on a type of physical uplink shared channel (PUSCH) information, wherein the type of the PUSCH information includes PUSCH information in a first-type retransmitted random access message and PUSCH information in a second-type retransmitted random access message, wherein the first-type retransmitted random access message carries PUSCH information without a random access preamble, and the second-type retransmitted random access message carries a random access preamble and PUSCH information;
determining a first candidate uplink transmit power based on the power control adjustment amount;
determining a smaller value in the first candidate uplink transmit power and a second candidate uplink transmit power as a PUSCH transmit power, wherein the second candidate uplink transmit power is determined based on a maximum transmit power that can be used by the communications apparatus;
and
sending PUSCH information in a random access message based on the PUSCH transmit power.

3 more elements

A non-transitory computer-readable storage medium storing computer instructions, that when executed by at least one processor, cause the at least one processor to perform operations comprising:

determining a power control adjustment amount, based on a type of physical uplink shared channel (PUSCH) information, wherein the type of the PUSCH information includes PUSCH information in a first-type retransmitted random access message and PUSCH information in a second-type retransmitted random access message, wherein the first-type retransmitted random access message carries PUSCH information without a random access preamble, and the second-type retransmitted random access message carries a random access preamble and PUSCH information;
determining a first candidate uplink transmit power based on the power control adjustment amount;
determining a smaller value in the first candidate uplink transmit power and a second candidate uplink transmit power as a PUSCH transmit power, wherein the second candidate uplink transmit power is determined based on a maximum transmit power that can be used by a terminal device;
and
sending PUSCH information in a random access message based on the PUSCH transmit power.

2 more elements

Dependencies are inferred from the claim text.

Uplink transmit power determining method and terminal device

Life of this patent

Uplink transmit power determining method and terminal device

Life of this patent

Abstract

Claims21