User equipment, base station, and wireless communication method
A wireless communication method performed by a user equipment (UE) in a radio resource control (RRC) idle/inactive state includes being configured, by a base station, with a layer 1 (L1) signaling for paging early indication (PEI) before a paging occasion (PO), wherein the L1 signaling includes a bits' field consisting of two sets, wherein the first set of bits' field indicates information of UE sub-groups for PO and the second set of bits' field indicates an availability indication of a tracking reference signal (TRS).
1 . A wireless communication method performed by a user equipment (UE) in a radio resource control (RRC) idle/inactive state, comprising:
being configured, by a base station, with a layer 1 (L1) signaling for paging early indication (PEI) before a paging occasion (PO), wherein the L1 signaling comprises a bits' field consisting of two sets, wherein the first set of bits' field indicates information of UE sub-groups for PO, and the first set of bits' field comprises a bitmap, wherein when the bitmap comprises a first value, the UE monitors the PO, and/or when the bitmap comprises a second value, the UE is not required to monitor the PO;
wherein the second set of bits' field indicates an availability indication of a tracking reference signal (TRS), and the second set of bits' field comprises bits codes, wherein when the bits codes comprise a first state, the UE is informed with an availability/presence of TRS, and/or when the bit codes comprise a second state, the UE is informed with an absence/unavailability of TRS;
wherein the L1 signaling of PEI starts with X slot gaps in time domain with the PO, where X is equal to 0 or an integer greater than 0.
2 . The wireless communication method of claim 1 , wherein the first set of bits' field of the L1 signaling carries information in a form of bitmap, to indicate the information of the UE sub-groups for paging before the PO.
3 . The wireless communication method of claim 2 , wherein each bit in a payload of the L1 signaling is associated to each sub-group.
4 . The wireless communication method of claim 1 , wherein the L1 signaling for PEI carrying the information in the form of bitmap to indicate the information of the UE sub-groups for paging before the PO uses a one-to-one mapping or a one-to-many mapping.
5 . The wireless communication method of claim 4 , wherein the one-to-one mapping is used in a case when a number of B bits in a payload of the L1 signaling is equal to or greater than a number of the UE sub-groups.
6 . The wireless communication method of claim 5 , wherein the B bits in the payload of the L1 signaling comprise 6 bits.
7 . The wireless communication method of claim 4 , wherein the one-to-many mapping is used in a case when each bit of B bits in a payload of the L1 signaling is associated to indicate multiple UE sub-groups for paging occasion.
8 . The wireless communication method of claim 7 , wherein the B bits comprise 4 bits, a number of the UE sub-groups is equal to 8, and each bit of B bits in the payload of the L1 signaling is associated to indicate 2 UE sub-groups for paging.
9 . A wireless communication method performed by a base station, comprising:
configuring, to a user equipment (UE) in an RRC idle/inactive state, a layer 1 (L1) signaling for paging early indication (PEI) before a paging occasion (PO), wherein the L1 signaling comprises a bits' field consisting of two sets, wherein the first set of bits' field indicates information of UE sub-groups for PO, and the first set of bits' field comprises a bitmap, wherein when the bitmap comprises a first value, the PO is monitored, and/or when the bitmap comprises a second value, the PO does not need to be monitored;
wherein the second set of bits' field indicates an availability of a tracking reference signal (TRS), and the second set of bits' field comprises bit codes, wherein when the bit codes comprise a first state, the base station informs the UE of an availability/presence of TRS, and/or when the bit codes comprise a second state, the base station informs the UE of an absence/unavailability of TRS;
wherein the L1 signaling of PEI starts with X slot gaps in time domain with the PO, where X is equal to 0 or an integer greater than 0.
10 . The wireless communication method of claim 9 , wherein the first set of bits' field of the L1 signaling carries information in a form of bitmap, to indicate the information of the UE sub-groups for paging before the PO.
11 . The wireless communication method of claim 10 , wherein each bit in a payload of the L1 signaling is associated to each sub-group.
12 . A user equipment (UE), comprising:
a memory;
a transceiver; and
a processor coupled to the memory and the transceiver;
wherein the UE in an RRC idle/inactive state is configured to execute a wireless communication method comprising:
being configured, by a base station, with a layer 1 (L1) signaling for paging early indication (PEI) before a paging occasion (PO), wherein the L1 signaling comprises a bits' field consisting of two sets, wherein the first set of bits' field indicates information of UE sub-groups for PO;
wherein the first set of bits' field comprises a bitmap, wherein when the bitmap comprises a first value, the PO is monitored, and/or when the bitmap comprises a second value, the PO does not need to be monitored;
wherein the second set of bits' field indicates an availability indication of a tracking reference signal (TRS), and the second set of bits' field comprises bit codes, wherein when the bit codes comprise a first state, the base station informs the UE of an availability/presence of TRS, and/or when the bit codes comprise a second state, the base station informs the UE of an absence/unavailability of TRS;
wherein the L1 signaling of PEI starts with X slot gaps in time domain with the PO, where X is equal to 0 or an integer greater than 0.
13 . The UE of claim 12 , wherein the first set of bits' field of the L1 signaling carries information in a form of bitmap, to indicate the information of the UE sub-groups for paging before the PO.
14 . The UE of claim 13 , wherein each bit in a payload of the L1 signaling for PEI is associated to each sub-group.
15 . The UE of claim 12 , wherein the first set of bits' field of L1 signaling comprises a bitmap, wherein when the bitmap comprises a first value, the UE monitors the PO, and/or when the bitmap comprises a second value, the UE is not required to monitor the PO.
16 . The UE of claim 15 , wherein the L1 signaling for PEI carrying the information in the form of bitmap to indicate the information of the UE sub-groups for paging before the PO uses a one-to-one mapping or a one-to-many mapping.