Mechanisms to support UE power preference signaling
Disclosed herein is a method at a User Equipment (UE) comprising determining that a current radio resource configuration is of a normal type, and responsive to the determining, prohibiting the UE from sending a Power Preference Indication (PPI) for a radio resource configuration of the normal type. Also disclosed is a method at a UE comprising: determining that a current radio resource configuration is of a power optimized type, and responsive to the determining, prohibiting the UE from sending a PPI for a radio resource configuration of the power optimized type. Also disclosed is a UE including a processor, the UE configured to: determine that a current radio resource configuration is of a normal type, and responsive to the determining, refrain from sending a PPI for a radio resource configuration of the normal type.
1. A method of controlling discontinuous reception (DRX) operation at a user equipment (UE), the method comprising:
transmitting a Power Preference Indication (PPI) request to a network node;
initiating a first prohibit timer or a second prohibit timer in response to transmitting the PPI request;
receiving, from the network node via Radio Resource Control (RRC) signaling, a plurality of configuration settings, wherein the plurality of configuration settings relate to a DRX configuration at the UE;
subsequent to receiving the plurality of configuration settings, receiving an indication indicating the UE to adopt one of a first or a second set of DRX parameters in accordance with one of the plurality of configuration settings, wherein the first and second sets of DRX parameters define different operating configurations to be applied by the UE, wherein the different operating configurations include at least a power-optimized configuration and a normal configuration, wherein the first set of DRX parameters includes parameters to configure the UE for at least one of a first short DRX operating mode or a first long DRX operating mode, wherein the second set of DRX parameters include parameters to configure the UE for at least one of a second short DRX operating mode or a second long DRX operating mode, the second short and long DRX operating modes being different than the first short and long DRX operating modes, respectively;
when the power-optimized configuration is applied by the UE, prohibiting the UE from transmitting additional PPI requests to transition from the power-optimized configuration to the normal configuration until the first prohibit timer expires; and
when the normal configuration is applied by the UE, prohibiting the UE from transmitting additional PPI requests to transition from the normal configuration to the power-optimized configuration until the second prohibit timer expires, wherein the second prohibit timer runs for a longer duration than the first prohibit timer.
2. The method of claim 1 , wherein the different operating configurations further include multiple connected mode configurations that offer different degrees of UE power consumption.
3. The method of claim 1 , further comprising the UE receiving, from the network node, the first and second sets of DRX parameters, the first set of DRX parameters being associated with the power-optimized configuration and the second set of DRX parameters being associated with the normal configuration.
4. The method of claim 3 , wherein the first set of DRX parameters include power-optimized parameters configured to control behavior of the UE when operating during at least one of the first long DRX operating mode or the first short DRX operating mode, and wherein the second set of DRX parameters include normal parameters configured to control behavior of the UE when operating during at least one of the second long DRX operating mode or the second short DRX operating mode.
5. The method of claim 4 , wherein the power-optimized parameters include at least one of first timers, first patterns, or first duty cycles associated with the first long and short DRX operating modes, wherein the normal parameters include at least one of second timers, second patterns, or second duty cycles associated with the second long and short DRX operating modes, and wherein the first and second timers, the first and second patterns, and the first and second duty cycles are independent of the first and second prohibit timers.
6. The method of claim 3 , wherein the UE is configured to receive the first and second sets of DRX parameters simultaneously in a single RRC message or sequentially in multiple RRC messages.
7. The method of claim 1 , wherein the different operating configurations further include an idle mode configuration, and wherein the indication is a Normal/Power-Optimized (N/P) flag indicating that the UE is to adopt the set of DRX procedures in accordance with the idle mode configuration, the power-optimized configuration, or the normal configuration.
8. A user equipment (UE) including a processor adapted to cause the UE to:
transmit a Power Preference Indication (PPI) request to a network node;
initiate a first prohibit timer or a second prohibit timer in response to transmitting the PPI request;
receive, from the network node via Radio Resource Control (RRC) signaling, a plurality of configuration settings, wherein the plurality of configuration settings relate to a discontinuous reception (DRX) configuration at the UE;
subsequent to receiving the plurality of configuration settings, receive an indication indicating the UE to adopt one of a first or a second set of DRX parameters in accordance with one of the plurality of configuration settings, wherein the first and second sets of DRX parameters define different operating configurations to be applied by the UE, wherein the different operating configurations include at least a power-optimized configuration and a normal configuration, wherein the first set of DRX parameters includes parameters to configure the UE for at least one of a first short DRX operating mode or a first long DRX operating mode, wherein the second set of DRX parameters include parameters to configure the UE for at least one of a second short DRX operating mode or a second long DRX operating mode, the second short and long DRX operating modes being different than the first short and long DRX operating modes, respectively;
when the power-optimized configuration is applied by the UE, prohibit the UE from transmitting additional PPI requests to transition from the power-optimized configuration to the normal configuration until the first prohibit timer expires; and
when the normal configuration is applied by the UE, prohibit the UE from transmitting additional PPI requests to transition from the normal configuration to the power-optimized configuration until the second prohibit timer expires, wherein the second prohibit timer runs for a longer duration than the first prohibit timer.
9. The UE of claim 8 , wherein the different operating configurations further include multiple connected mode configurations that offer different degrees of UE power consumption.
10. The UE of claim 8 , wherein the UE is configured to receive, from the network node, the first and second sets of DRX parameters associated with the power-optimized and normal configurations, respectively, and wherein the UE is configured to receive the first and second sets of DRX parameters simultaneously in a single RRC message or sequentially in multiple RRC messages.
11. The UE of claim 10 , wherein the first set of DRX parameters include power-optimized parameters configured to control behavior of the UE when operating during at least one of the first long DRX operating mode or the first short DRX operating mode, and wherein the second set of DRX parameters include normal parameters configured to control behavior of the UE when operating during at least one of the second long DRX operating mode or the second short DRX operating mode.
12. The UE of claim 11 , wherein the power-optimized parameters include at least one of timers, patterns, or duty cycles associated with the first long and short DRX operating modes, and wherein the normal parameters include at least one of timers, patterns, or duty cycles associated with the second long and short DRX operating modes.
13. The UE of claim 8 , wherein the indication is a Normal/Power-Optimized (N/P) flag indicating that the UE is to adopt the set of DRX procedures in accordance with the power-optimized configuration or the normal configuration.
14. A non-transitory computer-readable medium adapted to store instructions which, when executed by a processor of a user equipment (UE), cause the UE to perform a method comprising:
transmitting a Power Preference Indication (PPI) request to a network node;
initiating a first prohibit timer or a second prohibit timer in response to transmitting the PPI request;
receiving, from the network node via Radio Resource Control (RRC) signaling, a plurality of configuration settings, wherein the plurality of configuration settings relate to a discontinuous reception (DRX) configuration at the UE;
subsequent to receiving the plurality of configuration settings, receiving an indication indicating the UE to adopt one of a first or a second set of DRX parameters in accordance with one of the plurality of configuration settings, wherein the first and second sets of DRX parameters define different operating configurations to be applied by the UE, wherein the first set of DRX parameters includes parameters to configure the UE for at least one of a first short DRX operating mode or a first long DRX operating mode, wherein the second set of DRX parameters include parameters to configure the UE for at least one of a second short DRX operating mode or a second long DRX operating mode, the second short and long DRX operating modes being different than the first short and long DRX operating modes, respectively;
when the power-optimized configuration is applied by the UE, prohibiting the UE from transmitting additional PPI requests to transition from the power-optimized configuration to the normal configuration until the first prohibit timer expires; and
when the normal configuration is applied by the UE, prohibiting the UE from transmitting additional PPI requests to transition from the normal configuration to the power-optimized configuration until the second prohibit timer expires, wherein the second prohibit timer runs for a longer duration than the first prohibit timer.
15. The non-transitory computer-readable medium of claim 14 , wherein the different operating configurations further include connected mode configurations that offer different degrees of UE power consumption.
16. The non-transitory computer-readable medium of claim 14 , the method further comprising the UE receiving, from the network node, the first set of DRX parameters associated with the power-optimized configuration and the second set of DRX parameters associated with the normal configuration.
17. The non-transitory computer-readable medium of claim 16 , wherein the first set of DRX parameters include power-optimized parameters configured to control behavior of the UE when operating during at least one of the first long DRX operating mode or the first short DRX operating mode, and wherein the second set of DRX parameters include normal parameters configured to control behavior of the UE when operating during at least one of the second long DRX operating mode or the second short DRX operating mode.
18. The non-transitory computer-readable medium of claim 17 , wherein the power-optimized parameters include at least one of timers, patterns, or duty cycles associated with the first long and short DRX operating modes, and wherein the normal parameters include at least one of timers, patterns, or duty cycles associated with the second long and short DRX operating modes.
19. The non-transitory computer-readable medium of claim 16 , wherein the UE is configured to receive the first and second sets of DRX parameters simultaneously in a single RRC message or sequentially in multiple RRC messages.
20. The non-transitory computer-readable medium of claim 14 , wherein the indication is a Normal/Power-Optimized (N/P) flag indicating that the UE is to adopt the first or the second set of DRX parameters in accordance with the power-optimized configuration or the normal configuration, respectively.