Delaying UE radio capability ID (URCID) update for EPLMN
Aspects of the present disclosure relate to wireless communications, and more particularly, to techniques for optimizing procedures to update a UE radio capability ID (URCID) when a UE moves to a new Public Land Mobile Network (PLMN) within a registration area. The techniques may help avoid unnecessary signaling traffic and reduce UE power consumption. An example method performed by a user equipment (UE) generally includes receiving at least one URCID assigned by a first PLMN; and taking one or more actions to delay or avoid updating the URCID when moving to a second PLMN in a same registration area as the first PLMN.
1. A method for wireless communications at a user equipment (UE), comprising:
receiving at least one UE radio capability identifier (URCID) associated with a first public land mobile network (PLMN);
delaying or avoiding updating the at least one URCID when moving to a second PLMN in a same registration area as the first PLMN; and
performing a registration request procedure with the second PLMN to notify the second PLMN of the at least one URCID when the UE initiates a connection with the second PLMN.
2. The method of claim 1 , wherein:
the first and second PLMNs are equivalent PLMN (EPLMNs); and
delaying or avoiding updating the at least one URCID comprises delaying initiating a procedure associated with notifying the second PLMN of the at least one URCID.
3. The method of claim 1 , further comprising using a service request procedure to notify the second PLMN of the at least one URCID when the UE initiates the connection with the second PLMN.
4. The method of claim 1 , wherein the UE initiates the connection with the second PLMN due to at least one of paging or a mobile originated voice or data call.
5. The method of claim 1 , wherein:
the at least one URCID comprises a first URCID and a second URCID;
the UE is assigned the first URCID and the second URCID through different registration procedures, each corresponding to a different radio capability setting; and
the UE notifies the second PLMN of the first URCID in a registration request of the registration request procedure.
6. The method of claim 5 , further comprising notifying the second PLMN of the second URCID in a service request as a request to switch from the first URCID to the second URCID.
7. A user equipment (UE), comprising:
means for receiving at least one UE radio capability identifier (URCID) associated with a first public land mobile network (PLMN);
means for delaying or avoiding updating the at least one URCID when moving to a second PLMN in a same registration area as the first PLMN; and
means for performing a registration request procedure with the second PLMN to notify the second PLMN of the at least one URCID when the UE initiates a connection with the second PLMN.
8. The UE of claim 7 , wherein:
the first and second PLMNs are equivalent PLMN (EPLMNs); and
the means for delaying or avoiding updating the at least one URCID comprise means for delaying initiating a procedure associated with notifying the second PLMN of the at least one URCID.
9. The UE of claim 7 , further comprising means for using a service request procedure to notify the second PLMN of the at least one URCID when the UE initiates the connection with the second PLMN.
10. The UE of claim 7 , wherein the UE initiates the connection with the second PLMN due to at least one of paging or a mobile originated voice or data call.
11. The UE of claim 7 , wherein:
the at least one URCID comprises a first URCID and a second URCID;
the UE is assigned the first URCID and the second URCID through different registration procedures, each corresponding to a different radio capability setting; and
the UE further comprises means for notifying the second PLMN of the first URCID in a registration request of the registration request procedure.
12. The UE of claim 11 , further comprising means for notifying the second PLMN of the second URCID in a service request as a request to switch from the first URCID to the second URCID.
13. An apparatus for wireless communication, comprising:
one or more processors individually or collectively configured to execute instructions stored on one or more memories to cause the apparatus to:
obtain at least one UE radio capability identifier (URCID) associated with a first public land mobile network (PLMN);
delay or avoid updating the at least one URCID when moving to a second PLMN in a same registration area as the first PLMN; and
perform a registration request procedure with the second PLMN to notify the second PLMN of the at least one URCID when the apparatus initiates a connection with the second PLMN.
14. The apparatus of claim 13 , wherein:
the first and second PLMNs are equivalent PLMN (EPLMNs); and
in order to delay or avoid updating the at least one URCID, the one or more processors are configured to cause the apparatus to delay initiating a procedure associated with notifying the second PLMN of the at least one URCID.
15. The apparatus of claim 13 , wherein the one or more processors are further configured to cause the apparatus to use a service request procedure to notify the second PLMN of the at least one URCID when the apparatus initiates the connection with the second PLMN.
16. The apparatus of claim 13 , wherein the one or more processors are further configured to cause the apparatus to initiate the connection with the second PLMN due to at least one of paging or a mobile originated voice or data call.
17. The apparatus of claim 13 , wherein:
the at least one URCID comprises a first URCID and a second URCID;
the apparatus is assigned the first URCID and the second URCID through different registration procedures, each corresponding to a different radio capability setting; and
the one or more processors are further configured to cause the apparatus to notify the second PLMN of the first URCID in a registration request of the registration request procedure.
18. The apparatus of claim 17 , wherein the one or more processors are further configured to cause the apparatus to notify the second PLMN of the second URCID in a service request as a request to switch from the first URCID to the second URCID.
19. A user equipment (UE), comprising:
a receiver configured to receive at least one UE radio capability identifier (URCID) associated with a first public land mobile network (PLMN); and
one or more processors individually or collectively configured to execute instructions stored on one or more memories to cause the UE to:
delay or avoid updating the at least one URCID when moving to a second PLMN in a same registration area as the first PLMN; and
perform a registration request procedure with the second PLMN to notify the second PLMN of the at least one URCID when the UE initiates a connection with the second PLMN.
20. The UE of claim 19 , wherein:
the first and second PLMNs are equivalent PLMN (EPLMNs); and
in order to delay or avoid updating the at least one URCID, the one or more processors are configured to cause the UE to delay initiating a procedure associated with notifying the second PLMN of the at least one URCID.
21. The UE of claim 19 , wherein the one or more processors are further configured to cause the UE to use a service request procedure to notify the second PLMN of the at least one URCID when the UE initiates the connection with the second PLMN.
22. The UE of claim 19 , wherein the one or more processors are further configured to cause the UE to initiate the connection with the second PLMN due to at least one of paging or a mobile originated voice or data call.
23. The UE of claim 19 , wherein:
the at least one URCID comprises a first URCID and a second URCID;
the UE is assigned the first URCID and the second URCID through different registration procedures, each corresponding to a different radio capability setting; and
the one or more processors are further configured to cause the UE to notify the second PLMN of the first URCID in a registration request of the registration request procedure.
24. The UE of claim 23 , wherein the one or more processors are further configured to cause the UE to notify the second PLMN of the second URCID in a service request as a request to switch from the first URCID to the second URCID.