Paging early indication techniques
Certain aspects of the present disclosure provide techniques for paging based on a paging early indication (PEI). Particular aspects provide for a method for wireless communication performed by a user equipment (UE). The method generally includes determining a set of paging cycles for receiving paging information from a base station (BS), receiving a first paging early indicator (PEI) from the BS in a first paging cycle of the set of paging cycles, wherein the first PEI indicates whether the paging information will be transmitted to the UE in one or more second paging cycles of the set of paging cycles occurring after the first paging cycle, and receiving the paging information in the one or more second paging cycles based on the first PEI received in the first paging cycle.
1. A method for wireless communication by a user equipment (UE), comprising:
determining a set of paging cycles for receiving paging information;
receiving a first paging early indicator (PEI) in a first paging cycle of the set of paging cycles, wherein the first PEI indicates whether the paging information will be transmitted to the UE in one or more second paging cycles of the set of paging cycles occurring after the first paging cycle; and
receiving the paging information in the one or more second paging cycles based on the first PEI received in the first paging cycle, wherein:
receiving the paging information in the one or more second paging cycles receiving the paging information in the one or more second paging cycles comprises determining at least one of a number of synchronization signal block (SSB) bursts to receive or a number of reference signal (RS) occasions to receive within the one or more second paging cycles before receiving the paging information, or
receiving the paging information in the one or more second paging cycles is based on a paging starting configuration associated with the first PEI.
2. The method of claim 1 , wherein receiving the paging information in the one or more second paging cycles comprises determining at least one of the number of SSB bursts to receive or the number of RS occasions to receive within the one or more second paging cycles before receiving the paging information.
3. The method of claim 2 , wherein determining at least one of the number of SSB bursts to receive or number of RS occasions to receive is based on downlink channel conditions associated with the UE.
4. The method of claim 2 , wherein determining at least one of the number of SSB bursts to receive or the number of RS occasions to receive is based on a capability associated with the UE to receive and process the number of SSB bursts or RS occasions.
5. The method of claim 2 , wherein at least one of the number of SSB bursts to receive or the number of RS occasions to receive is based on a type of physical channel over which the paging information is received.
6. The method of claim 1 , wherein the first PEI is received within a paging occasion in the first paging cycle.
7. The method of claim 1 , wherein the first PEI is received within a time window occurring before, but within a threshold amount of time from, a paging occasion in the first paging cycle.
8. The method of claim 1 , further comprising not receiving a second PEI in the one or more second paging cycles indicated by the first PEI.
9. The method of claim 1 , wherein receiving the paging information in the one or more second paging cycles is further based on the paging starting configuration associated with the first PEI.
10. The method of claim 9 , wherein the paging starting configuration indicates one of:
that the paging information will be received in the first paging cycle;
a number of the one or more second paging cycles in which the paging information will be received, wherein the number of the one or more second paging cycles starts from the first paging cycle;
one specific paging cycle, from the set of paging cycles, occurring after the first paging cycle that the paging information will be received in; or
a number of the one or more second paging cycles in which the paging information will be received, wherein the number of the one or more second starts from a paging cycle occurring after the first paging cycle.
11. The method of claim 9 , wherein:
the paging starting configuration is based on a preference of the UE, and
the method further comprises transmitting an indication of the preference in a report that indicates a paging delay threshold of the UE associated with the first PEI.
12. The method of claim 9 , wherein:
the paging starting configuration is based on a wireless communication standard and on a category associated with the UE, and
the category associated with the UE indicates a paging delay threshold of the UE associated with the first PEI.
13. The method of claim 9 , wherein the paging starting configuration is semi-statically configured in one of paging configuration information, a system information block (SIB), or a radio resource connection (RRC) release message transmitted to the UE during a UE RRC release procedure.
14. The method of claim 9 , wherein the paging starting configuration is dynamically configured in the first PEI.
15. An apparatus, comprising:
a memory comprising executable instructions; and
one or more processors configured to execute the executable instructions and cause the apparatus to:
determine a set of paging cycles for receiving paging information;
receive a first paging early indicator (PEI) in a first paging cycle of the set of paging cycles, wherein the first PEI indicates whether the paging information will be transmitted to the apparatus in one or more second paging cycles of the set of paging cycles occurring after the first paging cycle; and
receive the paging information in the one or more second paging cycles based on the first PEI received in the first paging cycle, wherein:
in order to receive the paging information in the one or more second paging cycles, the one or more processors are configured to cause the apparatus to determine at least one of a number of synchronization signal block (SSB) bursts to receive or a number of reference signal (RS) occasions to receive within the one or more second paging cycles before receiving the paging information, or
the one or more processors are configured to cause the apparatus to receive the paging information in the one or more second paging cycles based on a paging starting configuration associated with the first PEI.
16. The apparatus of claim 15 , wherein, in order to receive the paging information in the one or more second paging cycles, the one or more processors are configured to cause the apparatus to determine at least one of the number of SSB bursts to receive or the number of RS occasions to receive within the one or more second paging cycles before receiving the paging information.
17. The apparatus of claim 16 , wherein the one or more processors are further configured to cause the apparatus to determine at least one of the number of SSB bursts to receive or number of RS occasions to receive based on downlink channel conditions associated with the apparatus.
18. The apparatus of claim 16 , wherein the one or more processors are further configured to cause the apparatus to determine at least one of the number of SSB bursts to receive or the number of RS occasions to receive based on a capability associated with the apparatus to receive and process the number of SSB bursts or RS occasions.
19. The apparatus of claim 16 , wherein at least one of the number of SSB bursts to receive or the number of RS occasions to receive is based on a type of physical channel over which the paging information is received.
20. The apparatus of claim 15 , wherein the one or more processors are further configured to cause the apparatus to receive the first PEI within a paging occasion in the first paging cycle.
21. The apparatus of claim 15 , wherein the one or more processors are further configured to cause the apparatus to receive the first PEI within a time window occurring before, but within a threshold amount of time from, a paging occasion in the first paging cycle.
22. The apparatus of claim 15 , wherein the one or more processors are further configured to cause the apparatus to not receive a second PEI in the one or more second paging cycles indicated by the first PEI.
23. The apparatus of claim 15 , wherein the one or more processors are further configured to cause the apparatus to receive the paging information in the one or more second paging cycles based on the paging starting configuration associated with the first PEI.
24. The apparatus of claim 23 , wherein the paging starting configuration indicates one of:
that the paging information will be received in the first paging cycle;
a number of the one or more second paging cycles in which the paging information will be received, wherein the number of the one or more second paging cycles starts from the first paging cycle;
one specific paging cycle, from the set of paging cycles, occurring after the first paging cycle that the paging information will be received in; or
a number of the one or more second paging cycles in which the paging information will be received, wherein the number of the one or more second starts from a paging cycle occurring after the first paging cycle.
25. The apparatus of claim 23 , wherein:
the paging starting configuration is based on a preference of the apparatus, and
the one or more processors are further configured to cause the apparatus to transmit an indication of the preference in a report that indicates a paging delay threshold of the apparatus associated with the first PEI.
26. The apparatus of claim 23 , wherein:
the paging starting configuration is based on a wireless communication standard and on a category associated with the apparatus, and
the category associated with the apparatus indicates a paging delay threshold of the apparatus associated with the first PEI.
27. The apparatus of claim 23 , wherein the paging starting configuration is semi-statically configured in one of paging configuration information, a system information block (SIB), or a radio resource connection (RRC) release message transmitted to the apparatus during an RRC release procedure.
28. The apparatus of claim 23 , wherein the paging starting configuration is dynamically configured in the first PEI.