NR UE power saving using L1 indication based cross-slot scheduling
A user equipment (UE), method and computer program product are provided. A configuration is received to detect a first field within a first DCI, the UE operating in a first state upon reception of the configuration. While operating in the first state where a minimum slot offset is applicable for at least one of receiving data or transmitting data, the UE switches from operating in the first state to a second state responsive to detecting a first state value for the first field in a first control message using the first DCI format in a first slot of a first set of slots. While operating in the second state where the minimum slot offset is not applicable for at least one of receiving the data and transmitting the data, the UE switches from operating in the second state to the first state responsive to detecting a second state value.
1. A method in a user equipment, UE, the method comprising:
receiving a first field within a first downlink control information, DCI, format, the UE operating in an initial state upon reception of the first field, the initial state being a first state;
while operating in the first state where a minimum slot offset is applicable for at least one of receiving data or transmitting data:
switching from operating in the first state to operating in a second state responsive to detecting a first state value for the first field in a first control message using the first DCI format in a first slot of a first set of slots, wherein the UE switches to operate in the second state after a first application delay regardless of the receiving a state value different from the first value in between the first slot and the first application delay; and
while operating in the second state where the minimum slot offset is not applicable for at least one of receiving the data and transmitting the data:
switching from operating in the second state to the first state responsive to detecting a second state value for the first field in the first slot of a second set of slots, wherein the UE switches to operate in the first state after a second application delay regardless of the receiving a state value different from the second value in between the first slot of the second set of slots and the application delay.
2. The method of claim 1 wherein the first state is a cross-slot state and the second state is a same-slot state.
3. The method of claim 1 , wherein the application delays are defined as the minimum slot offset multiplied with the ratio of the numerologies of the control channel, PDCCH, and the data channel, PDSCH.
4. The method of claim 1 wherein the minimum slot offset comprises a slot offset between the slot in which PDCCH is located and the slot for PDSCH reception or PUSCH transmission.
5. The method of claim 1 wherein the configuration to detect the first field within the first DCI is independent for downlink, DL, and uplink, UL DCI.
6. The method of claim 1 , wherein the first state is in a different numerology scheduling than the second state and switching from operating in the first state to operating in the second state comprises switching from operating in the first state to operating in the second state after a mixed numerology application delay scaled with PDCCH numerology in a numerator and PDSCH numerology in a denominator and switching from operating in the second state to operating in the first state comprises switching from operating in the second state to operating in the first state after the mixed numerology application delay.
7. The method of claim 1 , wherein the first DCI format is one of a DCI format scheduling downlink, and the minimum scheduling offset is applicable for receiving data, or a DCI format scheduling uplink, and the minimum scheduling offset is applicable for transmitting data.
8. The method of claim 1 , wherein the first DCI format is one of a DCI format scheduling downlink or a DCI format scheduling uplink, and wherein the first DCI format controls the minimum scheduling offset applicable for transmitting data and minimum scheduling offset applicable for receiving data.
9. A wireless device configured to operate in a communication network, the wireless device comprising:
processing circuitry; and
memory coupled with the processing circuitry, wherein the memory includes instructions that when executed by the processing circuitry causes the wireless device to perform operations comprising:
receiving a first field within a first downlink control information, DCI, format, the UE operating in an initial state upon reception of the first field, the initial state being a first state;
while operating in the first state where a minimum slot offset is applicable for at least one of receiving data or transmitting data:
switching from operating in the first state to operating in a second state responsive to detecting a first state value for the first field in a first control message using the first DCI format in a first slot of a first set of slots, wherein the UE switches to operate in the second state after a first application delay regardless of the receiving a state value different from the first value in between the first slot and the first application delay; and
while operating in the second state where the minimum slot offset is not applicable for at least one of receiving the data and transmitting the data:
switching from operating in the second state to the first state responsive to detecting a second state value for the first field in the first slot of a second set of slots, wherein the UE switches to operate in the first state after a second application delay regardless of the receiving a state value different from the second value in between the first slot of the second set of slots and the application delay.
10. The wireless device of claim 9 wherein the first state is a cross-slot state and the second state is a same-slot state.
11. The wireless device of claim 9 , wherein the application delays are defined as the minimum slot offset multiplied with the ratio of the numerologies of the control channel, PDCCH, and the data channel, PDSCH.
12. The wireless device of claim 9 wherein the minimum slot offset comprises a slot offset between the slot in which PDCCH is located and the slot for PDSCH reception or PUSCH transmission.
13. The wireless device of claim 9 wherein the configuration to detect the first field within the first DCI is independent for downlink, DL, and uplink, UL DCI.
14. The wireless device of claim 9 , wherein the first state is in a different numerology scheduling than the second state and in switching from operating in the first state to operating in the second state, the memory includes instructions that when executed by the processing circuitry causes the wireless device to perform operations comprising switching from operating in the first state to operating in the second state after a mixed numerology application delay scaled with PDCCH numerology in a numerator and PDSCH numerology in a denominator and in switching from operating in the second state to operating in the first state, the memory includes instructions that when executed by the processing circuitry causes the wireless device to perform operations comprising switching from operating in the second state to operating in the first state after the mixed numerology application delay.
15. The wireless device of claim 9 , wherein the first DCI format is one of a DCI format scheduling downlink, and the minimum scheduling offset is applicable for receiving data, or a DCI format scheduling uplink, and the minimum scheduling offset is applicable for transmitting data.
16. The wireless device of claim 9 , wherein the first DCI format is one of a DCI format scheduling downlink or a DCI format scheduling uplink, and wherein the first DCI format controls the minimum scheduling offset applicable for transmitting data and minimum scheduling offset applicable for receiving data.