Power control parameter configuration method, terminal and network side device
View Patent ↗The present disclosure provides a power control parameter configuration method, a terminal and a network side device. The power control parameter configuration method includes: obtaining, by a terminal, a QCL relationship indicated by a network side device for an uplink signal; determining, by the terminal, at least one of a power control parameter or a path loss reference signal corresponding to the QCL relationship, the power control parameter being associated with large-scale information for the QCL relationship, the path loss reference signal being associated with a reference signal in the QCL relationship; and determining, by the terminal, uplink transmission power in accordance with at least one of the power control parameter or the path loss reference signal, and transmitting the uplink signal in accordance with the uplink transmission power.
1. A power control parameter configuration method, comprising:
obtaining, by a terminal, a Quasi Co-Location (QCL) relationship indicated by a network side device for an uplink signal;
determining, by the terminal, (i) a power control parameter corresponding to the QCL relationship, or (ii) a power control parameter and a path loss reference signal both corresponding to the QCL relationship; and
determining, by the terminal, uplink transmission power in accordance with the power control parameter, or, determining, by the terminal, uplink transmission power in accordance with both the power control parameter and the path loss reference signal, and transmitting the uplink signal in accordance with the uplink transmission power,
wherein the power control parameter comprises at least one of a path loss compensation factor or a target received power,
wherein the power control parameter is a power control parameter carried in configuration information for the QCL relationship; or the power control parameter is a power control parameter obtained through performing a first operation on the power control parameter in the configuration information for the QCL relationship and a power control parameter stored in the terminal.
2. The power control parameter configuration method according to claim 1 , wherein in the case that the reference signal in the QCL relationship is a downlink reference signal, the path loss reference signal is the downlink reference signal, or in the case that the reference signal in the QCL relationship is an uplink reference signal, the path loss reference signal is a QCL downlink reference signal for the uplink reference signal.
3. The power control parameter configuration method according to claim 1 ,
wherein in the case that a path loss of large-scale information for the QCL relationship is a first path loss, the path loss compensation factor is a first path loss compensation factor and the target received power is first target received power, or the path loss compensation factor is a second path loss compensation factor and the target received power is second target received power; and
in the case that fading of the large-scale information is a second path loss, the path loss compensation factor is a third path loss compensation factor and the target received power is third target received power,
wherein the first path loss is greater than the second path loss, the first path loss compensation factor is greater than the third path loss compensation factor, the first target received power is greater than the third target received power, the second path loss compensation factor is smaller than the third path loss compensation factor, and the second target received power is smaller than the third target received power.
4. The power control parameter configuration method according to claim 1 , wherein the power control parameter comprises one or more power control parameters indicating at least one of a Physical Uplink Control Channel (PUCCH), a Physical uplink shared channel (PUSCH) or a Sounding Reference Signal (SRS), and the power control parameters indicating at least one of the PUCCH, the PUSCH or the SRS in the configuration information are configured independently or in a jointly manner.
5. The power control parameter configuration method according to claim 1 , wherein the power control parameter is one or more power control parameters in multiple power control parameters corresponding to one or more identifiers, the one or more identifiers comprise an identifier configured through the configuration information for the QCL relationship, and the multiple power control parameters are configured in advance; or the power control parameter is one or more power control parameters from a power control parameter set indicated by Downlink Control Information (DCI), and the power control parameter set is configured for the QCL relationship in advance.
6. The power control parameter configuration method according to claim 5 , wherein the power control parameter comprises one or more power control parameters indicating at least one of a PUCCH, a PUSCH or an SRS, one or more identifiers of the one or more power control parameters for PUSCH are one or more identifiers configured through the configuration information, one or more identifiers of the one or more power control parameters for SRS are one or more identifiers configured through the configuration information or one or more identifiers configured in an SRS request, and one or more identifiers of the one or more power control parameters for PUCCH are one or more identifiers configured through the configuration information, Radio Resource Control (RRC) or a Medium Access Control Control Element (MAC CE).
7. A power control parameter configuration method, comprising:
configuring, by a network side device, (i) a power control parameter corresponding to a Quasi Co-Location (QCL) relationship, or (ii) a power control parameter and a path loss reference signal both corresponding to a Quasi Co-Location (QCL) relationship; and
indicating, by the network side device, the QCL relationship and the power control parameter to a terminal, or, indicating, by the network side device, the QCL relationship, the power control parameter and the path loss reference signal to a terminal,
wherein the power control parameter comprises at least one of a path loss compensation factor or a target received power,
wherein the power control parameter is a power control parameter carried in configuration information for the QCL relationship; or the power control parameter is a power control parameter obtained through performing a first operation on the power control parameter in the configuration information for the QCL relationship and a power control parameter stored in the terminal,
wherein in the case that a path loss of large-scale information for the QCL relationship is a first path loss, the path loss compensation factor is a first path loss compensation factor and the target received power is first target received power, or the path loss compensation factor is a second path loss compensation factor and the target received power is second target received power; and
in the case that fading of the large-scale information is a second path loss, the path loss compensation factor is a third path loss compensation factor and the target received power is third target received power,
wherein the first path loss is greater than the second path loss, the first path loss compensation factor is greater than the third path loss compensation factor, the first target received power is greater than the third target received power, the second path loss compensation factor is smaller than the third path loss compensation factor, and the second target received power is smaller than the third target received power.
8. The power control parameter configuration method according to claim 7 , wherein in the case that the reference signal in the QCL relationship is a downlink reference signal, the path loss reference signal is the downlink reference signal, or in the case that the reference signal in the QCL relationship is an uplink reference signal, the path loss reference signal is a QCL downlink reference signal for the uplink reference signal.
9. The power control parameter configuration method according to claim 7 , wherein the power control parameter comprises one or more power control parameters indicating at least one of a Physical Uplink Control Channel (PUCCH), a Physical uplink shared channel (PUSCH) or a Sounding Reference Signal (SRS), and the power control parameters indicating at least one of the PUCCH, the PUSCH or the SRS in the configuration information are configured independently or in a jointly manner.
10. The power control parameter configuration method according to claim 7 , wherein the power control parameter is one or more power control parameters in multiple power control parameters corresponding to one or more identifiers, the one or more identifiers comprise an identifier configured through the configuration information for the QCL relationship, and the multiple power control parameters are configured in advance; or the power control parameter is one or more power control parameters from a power control parameter set indicated by Downlink Control Information (DCI), and the power control parameter set is configured for the QCL relationship in advance.
11. The power control parameter configuration method according to claim 10 , wherein the power control parameter comprises one or more power control parameters indicating at least one of a PUCCH, a PUSCH or an SRS, one or more identifiers of the one or more power control parameters for PUSCH are one or more identifiers configured through the configuration information, one or more identifiers of the one or more power control parameters for SRS are one or more identifiers configured through the configuration information or one or more identifiers configured in an SRS request, and one or more identifiers of the one or more power control parameters for PUCCH are one or more identifiers configured through the configuration information, Radio Resource Control (RRC) or a Medium Access Control Control Element (MAC CE).
12. A terminal, comprising a transceiver, a memory, a processor, and a program stored in the memory and executed by the processor, wherein the transceiver is configured to obtain a Quasi Co-Location (QCL) relationship indicated by a network side device for an uplink signal;
the transceiver or the processor is configured to determine (i) a power control parameter corresponding to the QCL relationship, or (ii) a power control parameter and a path loss reference signal both corresponding to the QCL relationship; and
the transceiver is further configured to determine uplink transmission power in accordance with the power control parameter, or, determining, by the terminal, uplink transmission power in accordance with both the power control parameter and the path loss reference signal, and transmit the uplink signal in accordance with the uplink transmission power,
wherein the power control parameter comprises at least one of a path loss compensation factor or a target received power,
wherein the power control parameter is a power control parameter carried in configuration information for the QCL relationship; or the power control parameter is a power control parameter obtained through performing a first operation on the power control parameter in the configuration information for the QCL relationship and a power control parameter stored in the terminal.
13. A network side device, comprising a transceiver, a memory, a processor, and a program stored in the memory and executed by the processor, wherein the transceiver or the processor is configured to implement steps in the power control parameter configuration method according to claim 7 .
14. A non-transitory computer-readable storage medium storing therein a computer program, wherein the computer program is executed by a processor so as to implement steps in the power control parameter configuration method according to claim 1 .
15. A non-transitory computer-readable storage medium storing therein a computer program, wherein the computer program is executed by a processor so as to implement steps in the power control parameter configuration method according to claim 7 .