Full power transmission signaling for coherent user equipment
Embodiments are directed to techniques to implement full power transmission in a user equipment (UE). An embodiment of a user equipment (UE) comprises an antenna array comprising a plurality of antenna elements, and a processor to cause the UE to establish a communication connection with a network entity, cause the UE to transmit, to the network entity, a coherency capability indicator and a power transmission mode capability indicator for the UE, cause the UE to receive, from the network entity, instructions to operate in a designated coherency mode and a designated power transmission mode, and configure the UE to operate in the designated coherency mode and the designated power transmission mode.
1 . A method comprising:
generating, for transmission to a network entity, a coherency capability indicator and a power transmission mode capability indicator for a user equipment (UE), wherein: the coherency capability indicator indicates that the UE can be configured to operate in a fully-coherent mode; and the power transmission mode capability indicator includes a first transmit precoding matrix indicator (TPMI) bitmap to indicate TPMIs that support full power transmission when the UE is configured for two-port transmission, a first TPMI group index to indicate TPMIs that support full power transmission when the UE is configured for four-port, non-coherent transmission, and a second TPMI group index to indicate TPMIs that support full power transmission when the UE is configured for four-port, partial-coherent operation;
processing a physical uplink shared channel (PUSCH) configuration received from the network entity; and
generating a PUSCH transmission with a full transmit power and based on the PUSCH configuration.
2 . The method of claim 1 , further comprising:
generating, for transmission to the network entity, a first capability indication to indicate a maximum number of sounding reference signal (SRS) resources per SRS resource set, wherein the maximum number is one, two, or four, or a second capability indication to indicate a UE preference with respect to having a different number of SRS ports configured in a same SRS resource set.
3 . One or more non-transitory, computer-readable media having instructions that, when executed, cause processing circuitry to:
generate, for transmission to a network entity, a coherency capability indicator to indicate that a user equipment (UE) can be configured to operate in a fully-coherent mode and a power transmission mode capability indicator that includes a first transmit precoding matrix indicator (TPMI) bitmap to indicate TPMIs that support full power transmission when the UE is configured for two-port transmission, a first TPMI group index to indicate TPMIs that support full power transmission when the UE is configured for four-port, non-coherent transmission, and a second TPMI group index to indicate TPMIs that support full power transmission when the UE is configured for four-port, partial-coherent operation;
process a physical uplink shared channel (PUSCH) configuration received from a network entity; and
generate, for transmission to the network entity, a PUSCH transmission with a full transmit power and based on the PUSCH configuration.
4 . The one or more non-transitory, computer-readable media of claim 3 , wherein the instructions, when executed, further cause the UE-processing circuitry to:
transmit, to the network entity, an indication that the UE supports sounding reference signal (SRS) resources with a same amount of ports and a maximum of one or two SRS resources per SRS resource set.
5 . The one or more non-transitory, computer-readable media of claim 3 , wherein the PUSCH configuration is to configure the UE to operate in a first mode in which all TPMIs can be operated at a full power setting; or a second mode in which a list of one or more TPMIs provided by the UE can be operated at a full power setting.
6 . The one or more non-transitory, computer-readable media of claim 3 , wherein the power transmission mode capability indicator is to indicate a list of one or more TPMIs for which the UE supports full-power transmission.
7 . The one or more non-transitory, computer-readable media of claim 3 , wherein the instructions, when executed, further cause the processing circuitry to:
generate, for transmission to the network entity, a capability indication is to indicate whether the UE supports a sounding reference signal (SRS) resource set having SRS resources with a different number of ports.
8 . The one or more non-transitory, computer-readable media of claim 3 , wherein the instructions, when executed, further cause the processing circuitry to:
generate, for transmission to the network entity, a first capability indication to indicate a maximum number of sounding reference signal (SRS) resources per SRS resource set, wherein the maximum number is one, two, or four, or a second capability indication to indicate a UE preference with respect to having a different number of SRS ports configured in a same SRS resource set.
9 . A method comprising:
processing capability information received from a user equipment (UE), the capability information to include coherency capability information to indicate that a user equipment (UE) can be configured to operate in a fully-coherent mode and power transmission mode capability information that includes a first transmit precoding matrix indicator (TPMI) bitmap to indicate TPMIs that support full power transmission when the UE is configured for two-port transmission, a first TPMI group index to indicate TPMIs that support full power transmission when the UE is configured for four-port, non-coherent transmission, and a second TPMI group index to indicate TPMIs that support full power transmission when the UE is configured for four-port, partial-coherent operation;
generating, based on the capability information, a physical uplink shared channel (PUSCH) configuration to configure the UE for PUSCH operation; and
outputting the PUSCH configuration for transmission to the UE.
10 . The method of claim 9 , wherein the one or more TPMIs include all TPMIs or a subset of all the TPMIs.
11 . The method of claim 9 , further comprising:
processing an indication received from the UE, the indication to indicate that the UE supports sounding reference signal (SRS) resources with a same amount of ports and a maximum of one or two SRS resources per SRS resource set.
12 . The method of claim 9 , wherein the power transmission mode capability information includes a capability indication to indicate a capability associated with sounding reference signal (SRS) resource configuration.
13 . The method of claim 12 , wherein the capability indication is to indicate whether the UE supports an SRS resource set having SRS resources with a different number of ports.