Method and apparatus for unified design of PDCCH and RS based paging early indication
Methods and apparatus for physical downlink data channel (PDCCH) and reference signal (RS) based paging in a wireless communication system. A method includes receiving: a first configuration for a search space set in common search space (CSS), wherein the search space set is for a downlink control information (DCI) format that includes a tracking RS (TRS) availability indication field, wherein the TRS availability indication field in the DCI format provides a bitmap; and a second configuration for a number of TRS resources sets. The method further includes determining a TRS resources set from the number of TRS resources sets associated with a bit from the bitmap, wherein TRS resources from the TRS resources set are present for a time duration based on an associated bit for the TRS resources set in the bitmap; and receiving TRS resources from the number of TRS resources sets that are present.
1. A terminal in a wireless communication system, the terminal comprising:
a transceiver configured to:
receive, from a base station, a higher layer signaling including (i) a configuration of at least one tracking reference signal (TRS) resource set for use in at least a radio resource control (RRC) idle state or an RRC inactive state and (ii) information on a validity duration for the at least one TRS resource set, and
receive, from the base station, downlink control information (DCI) with a cyclic redundancy check (CRC) scrambled by a paging early indication (PEI) radio network temporary identifier (RNTI), wherein the DCI includes an availability indication providing a bitmap associated with the at least one TRS resource set of the configuration; and
a processor operably coupled with the transceiver, the processor configured to identify a TRS resource set among the at least one TRS resource set based on a value of a bit of the bitmap, wherein the TRS resource set is available for the validity duration.
2. The terminal of claim 1 , wherein the validity duration includes a multiple of a paging cycle starting from a radio frame in which the DCI is received.
3. The terminal of claim 1 , wherein bits of the bitmap are associated with TRS resource sets, respectively, and indicate whether the associated TRS resource sets are available or not.
4. The terminal of claim 1 , wherein the validity duration is two paging cycles starting from a first system frame number in which the DCI is received.
5. A base station in a wireless communication system, the base station comprising:
a processor configured to determine a higher layer signaling including (i) a configuration of at least one tracking reference signal (TRS) resource set for a radio resource control (RRC) idle state or an RRC inactive state and (ii) information on a validity duration for the at least one TRS resource set; and
a transceiver operably coupled with the processor, the transceiver configured to transmit, to a terminal, downlink control information (DCI) with a cyclic redundancy check (CRC) scrambled by a paging early indication (PEI) radio network temporary identifier (RNTI), wherein the DCI comprises an availability indication including a bitmap associated with the at least one TRS resource set of the configuration,
wherein a TRS resource set among the at least one TRS resource set is available for the validity duration based on a value of a bit of the bitmap.
6. The base station of claim 5 , wherein the validity duration includes a multiple of paging cycle starting from a radio frame in which the DCI is transmitted.
7. The base station of claim 5 , wherein bits of the bitmap are associated with TRS resource sets, respectively, and indicate whether the associated TRS resource sets are available or not.
8. The base station of claim 5 , wherein the validity duration is two paging cycles starting from a first system frame number in which the DCI is transmitted.
9. A method performed by a terminal in a wireless communication system, the method comprising:
receiving, from a base station, a higher layer signaling including (i) a configuration of at least one tracking reference signal (TRS) resource set for a radio resource control (RRC) idle state or an RRC inactive state and (ii) information on a validity duration for the at least one TRS resource set;
receiving, from the base station, downlink control information (DCI) with a cyclic redundancy check (CRC) scrambled by a paging early indication (PEI) radio network temporary identifier (RNTI), wherein the DCI comprises an availability indication including a bitmap associated with the at least one TRS resource set of the configuration; and
identifying a TRS resource set among the at least one TRS resource set based on a value of a bit of the bitmap, wherein the TRS resource set is available for the validity duration.
10. The method of claim 9 , wherein the validity duration includes a multiple of paging cycle starting from a radio frame in which the DCI is received.
11. The method of claim 9 , wherein bits of the bitmap are associated with TRS resource sets, respectively, and indicate whether the associated TRS resource sets are available or not.
12. The method of claim 9 , wherein the validity duration is two paging cycles starting from a first system frame number in which the DCI is received.
13. A method performed by base station in a wireless communication system, the method comprising:
determining a higher layer signaling including (i) a configuration of at least one tracking reference signal (TRS) resource set for a radio resource control (RRC) idle state or an RRC inactive state and (ii) information on a validity duration for the at least one TRS resource set; and
transmitting, to a terminal, downlink control information (DCI) with a cyclic redundancy check (CRC) scrambled by a paging early indication (PEI) radio network temporary identifier (RNTI), wherein the DCI comprises an availability indication including a bitmap associated with the at least one TRS resource set of the configuration,
wherein a TRS resource set among the at least one TRS resource set is available for the validity duration based on a value of a bit of the bitmap.
14. The method of claim 13 , wherein the validity duration includes a multiple of paging cycle starting from a radio frame in which the DCI is transmitted.
15. The method of claim 13 , wherein bits of the bitmap are associated with TRS resource sets, respectively, and indicate whether the associated TRS resource sets are available or not.
16. The method of claim 13 , wherein the validity duration is two paging cycles starting from a first system frame number in which the DCI is transmitted.