Method and apparatus for power saving signal design in NR
A method of a user equipment (UE) for power saving is provided. The method comprises receiving, from a serving cell, a set of configurations, receiving a power saving signal (PoSS) from a first downlink channel based on the received set of configurations, acquiring a first part of information for power saving from the PoSS, receiving, based on the received set of configurations, a second downlink channel that is a control channel, and acquiring a second part of information for the power saving from the received second downlink channel.
1. A method for a user equipment (UE) for receiving physical downlink control channels (PDCCHs), the method comprising:
receiving:
a first configuration for a paging occasion (PO) over slots in time, wherein the PO includes a number of PDCCH reception occasions, and
a second configuration for a frame offset; and
determining:
a first radio frame associated with the PO,
a number of X>1 PDCCH reception occasions according to a search space set in a common search space (CSS), and
a second radio frame associated with the number of X>1 PDCCH reception occasions, wherein the second radio frame is before the first radio frame by a number of radio frames equal to the frame offset;
decoding a downlink control information (DCI) format in one of the number of X>1 PDCCH reception occasions, wherein the DCI format includes a field indicating either reception or no reception of PDCCHs in the PO; and
receiving PDCCHs in the PO or skipping reception of PDCCHs in the PO based on the indication by the field in the DCI format when the DCI format is correctly decoded.
2. The method of claim 1 , further comprising skipping reception of PDCCHs in the PO if the DCI format is not correctly decoded.
3. The method of claim 1 , further comprising:
receiving a number of X>1 synchronization signals and physical broadcast channel blocks (SS/PBCH blocks); and
determining ith (i=1, . . . , X) PDCCH reception occasion from the number of X>1 PDCCH reception occasions, wherein the ith PDCCH reception occasion has a spatial reception parameter that is same as a spatial reception parameter for ith (i=1, . . . , X) received SS/PBCH block.
4. The method of claim 1 , further comprising:
receiving a number of Y synchronization signals and physical broadcast channel blocks (SS/PBCH blocks); and
determining a number of consecutive PDCCH reception occasions from the number of X>1 PDCCH reception occasions, wherein the number of consecutive PDCCH reception occasions has a spatial reception parameter that is same as a spatial reception parameter for a received SS/PBCH block.
5. The method of claim 1 , wherein the second configuration further includes a number of POs associated with the number of X>1 PDCCH reception occasions.
6. The method of claim 1 , wherein the second configuration is provided by a system information block.
7. The method of claim 1 , further comprising receiving PDCCHs in the PO if the DCI format is not correctly decoded.
8. A user equipment (UE), comprising:
a transceiver configured to receive:
a first configuration for a paging occasion (PO) over slots in time, wherein the PO includes a number of PDCCH reception occasions, and
a second configuration for a frame offset; and
a processor operably coupled to the transceiver, the processor configured to:
determine a first radio frame associated with the PO;
determine a number of X>1 PDCCH reception occasions according to a search space set in a common search space (CSS);
determine a second radio frame associated with the number of X>1 PDCCH reception occasions, wherein the second radio frame is before the first radio frame by a number of radio frames equal to the frame offset;
decode a downlink control information (DCI) format in one of the number of X>1 PDCCH reception occasions, wherein the DCI format includes a field indicating either reception or no reception of PDCCHs in the PO; and
instruct the transceiver, when the DCI format is correctly decoded, to either receive or skip reception of PDCCHs in the PO based on the indication by the field in the DCI format.
9. The UE of claim 8 , wherein the processor is further configured to instruct the transceiver to skip reception of PDCCHs in the PO if the DCI format is not correctly decoded.
10. The UE of claim 8 , wherein:
the transceiver is further configured to receive a number of X>1 synchronization signals and physical broadcast channel blocks (SS/PBCH blocks); and
the processor further configured to determine ith (i=1, . . . , X) PDCCH reception occasion from the number of X>1 PDCCH reception occasions, wherein the ith PDCCH reception occasion has a spatial reception parameter that the same as a spatial reception parameter for ith (i=1, . . . , X) received SS/PBCH block.
11. The UE of claim 8 , wherein:
the transceiver is further configured to receive a number of Y synchronization signals and physical broadcast channel blocks (SS/PBCH blocks); and
the processor further configured to determine a number of consecutive PDCCH reception occasions from the number of X>1 PDCCH reception occasions, wherein the number of consecutive PDCCH reception occasions has a spatial reception parameter that is same as a spatial reception parameter for a received SS/PBCH block.
12. The UE of claim 8 , wherein the second configuration further include a number of POs associated with the number of X>1 PDCCH reception occasions.
13. The UE of claim 8 , wherein the second configuration is provided by a system information block.
14. The UE of claim 8 , the transceiver is further configured PDCCHs in the PO if the DCI format is not correctly decoded.
15. A base station (BS), comprising:
a transceiver configured to transmit:
a first configuration for a paging occasion (PO) over slots in time, wherein the PO includes a number of PDCCH transmission occasions, and
a second configuration for a frame offset; and
a processor operably coupled to the transceiver, the processor configured to:
determine a first radio frame associated with the PO;
determine a number of X>1 PDCCH transmission occasions according to a search space set in a common search space (CSS);
determine a second radio frame associated with the number of X>1 PDCCH transmission occasions, wherein the second radio frame is before the first radio frame by a number of radio frames equal to the frame offset;
encode a downlink control information (DCI) format in one of the number of X>1 PDCCH transmission occasions, wherein the DCI format includes a field indicating either transmission or no transmission of PDCCHs in the PO; and
instruct the transceiver to either transmit or to skip transmission of PDCCHs in the PO based on the indication by the field in the DCI format.
16. The BS of claim 15 , wherein the processor is further configured to instruct the transceiver to skip transmission of PDCCHs in the PO if the DCI format is not correctly encoded.
17. The BS of claim 15 , wherein:
the transceiver is further configured to transmit a number of X>1 synchronization signals and physical broadcast channel blocks (SS/PBCH blocks); and
the processor further configured to determine ith (i=1, . . . , X) PDCCH transmission occasion from the number of X>1 PDCCH transmission occasions, wherein the ith PDCCH transmission occasion has a spatial reception parameter that is same as a spatial transmission parameter for ith (i=1, . . . , X) received SS/PBCH block.
18. The BS of claim 15 , wherein:
the transceiver is further configured to transmit a number of Y synchronization signals and physical broadcast channel blocks (SS/PBCH blocks); and
the processor further configured to determine a number of consecutive PDCCH transmission occasions from the number of X>1 PDCCH transmission occasions, wherein the number of consecutive PDCCH transmission occasions has a spatial reception parameter that is same as a spatial transmission parameter for a transmitted SS/PBCH block.
19. The BS of claim 15 , wherein the second configuration further include a number of POs associated with the number of X>1 PDCCH reception occasions.
20. The BS of claim 15 , wherein the second configuration is provided by a system information block.
21. The BS of claim 15 , the processor is further configured to instruct the transceiver to transmit PDCCHs in the PO if the DCI format is not correctly encoded.