Paging timing collision control
The present application relates to devices and components including apparatus, systems, and methods for paging timing collision control, with respect to exchange of offset values (e.g., IMSI offset values) between a user equipment and a network.
1. An apparatus comprising:
processing circuitry to:
generate a request message that includes a requested offset value;
obtain an accept message that is responsive to the request message and includes a first offset value;
in response to the accept message, generate a complete message;
based on a transmission failure of the complete message, monitor a paging occasion that is based on a stored offset value that is different than the first offset value, and
memory coupled to the processing circuitry, the memory to store the stored offset value.
2. The apparatus of claim 1 , wherein lack of an acknowledgement of transmission of the complete message by a lower layer indicates the transmission failure of the complete message.
3. The apparatus of claim 1 , wherein the request message is one of:
an ATTACH REQUEST message,
a TRACKING AREA UPDATE REQUEST message, or
a REGISTRATION REQUEST message.
4. The apparatus of claim 1 , wherein the first offset value is the same as the requested offset value.
5. The apparatus of claim 1 , wherein the first offset value is different than the requested offset value.
6. The apparatus of claim 1 , wherein:
the requested offset value is a requested IMSI offset value,
the first offset value is a first IMSI offset value, and
the stored offset value is a stored IMSI offset value.
7. The apparatus of claim 1 , wherein the accept message includes a new temporary user equipment identifier.
8. One or more non-transitory computer-readable media having instructions that, when executed by one or more processors, cause a network element to:
receive, from a user equipment (UE), a request message that includes a requested offset value;
based on the request message, send, to the UE, an accept message that includes a first offset value; and
calculate a UE identity index value that is based on a second offset, value and subsequent to sending the accept message, page the UE according to a paging occasion that is based on the UE identity index value, wherein the second offset value is different than the first offset value.
9. The one or more non-transitory computer-readable media of claim 8 , wherein the instructions, when executed by the one or more processors, further cause the network element to allocate a first temporary UE identifier to the UE, wherein:
the accept message includes the first temporary UE identifier,
the request message includes a second temporary UE identifier, and
paging the UE comprises sending a paging message to the UE that includes UE identity information from the second temporary UE identifier.
10. The one or more non-transitory computer-readable media of claim 8 , wherein the instructions, when executed by the one or more processors, further cause the network element to send the UE identity index value to a base station prior to receiving the request message.
11. The one or more non-transitory computer-readable media of claim 8 , wherein the request message is one of:
an ATTACH REQUEST message,
a TRACKING AREA UPDATE REQUEST message, or
a REGISTRATION REQUEST message.
12. The one or more non-transitory computer-readable media of claim 8 , wherein the instructions, when executed by the one or more processors, further cause the network element to:
select the first offset value from among a predetermined set of offset values or from a predetermined range of offset values; and
allocate a first temporary UE identifier to the UE, wherein the accept message includes the first temporary UE identifier.
13. The one or more non-transitory computer-readable media of claim 8 , wherein:
the requested offset value is a requested international mobile subscriber identity (IMSI) offset value,
the first offset value is a first IMSI offset value, and
the second offset value is a stored IMSI offset value.
14. The one or more non-transitory computer-readable media of claim 8 , wherein the network element is a Mobility Management Entity or an Access and Mobility Management Function.
15. A method of operating a network element, the method comprising:
receiving, from a user equipment (UE), a request message that includes a requested offset value;
based on the request message, sending, to the UE, an accept message that includes a first offset value;
subsequent to sending the accept message, and during a first paging cycle of the UE:
paging the UE according to a first paging occasion that is based on a first UE identity index value, international mobile subscriber identity (IMSI) value, wherein the first UE identity index IMSI value is based on the first offset value; and
paging the UE according to a second paging occasion that is based on a second UE identity index IMSI value, wherein the second UE identity index IMSI value is based on a second offset value that is different than the first offset value;
receiving, from the UE, a response that indicates a first of the first IMSI value or the second IMSI value; and
determining that a second of the first IMSI value or the second IMSI value is invalid based on the response.
16. The method of claim 15 , wherein the method comprises, based on the request message, assigning a temporary UE identifier to the UE, wherein the accept message includes the temporary UE identifier.
17. The method of claim 15 , wherein:
the method further comprises starting a timer at a time of sending the accept message, and
paging the UE according to the second paging occasion is based on an expiration of the timer.
18. The method of claim 15 , wherein the request message is one of:
an ATTACH REQUEST message,
a TRACKING AREA UPDATE REQUEST message, and
a REGISTRATION REQUEST message.
19. The method of claim 15 , wherein:
the requested offset value is a requested IMSI offset value,
the first offset value is a first IMSI offset value, and
the second offset value is a second IMSI offset value.
20. The method of claim 15 , wherein the method further comprises:
subsequent to paging the UE according to the first paging occasion and paging the UE according to the second paging occasion, receiving, from the UE, a SERVICE REQUEST message, an EXTENDED SERVICE REQUEST message, or a CONTROL PLANE SERVICE REQUEST message; and
responding to the SERVICE REQUEST message, EXTENDED SERVICE REQUEST message, or CONTROL PLANE SERVICE REQUEST message based on one among the first offset value and the second offset value, wherein the one among the first offset value and the second offset value is indicated by UE identity information in the SERVICE REQUEST message, EXTENDED SERVICE REQUEST message, or CONTROL PLANE SERVICE REQUEST message.