Adaptive paging techniques for extended coverage-capable devices
View Patent ↗Adaptive paging techniques for EC-capable devices are described. In one embodiment, for example, an apparatus may comprise at least one memory and logic for an evolved node B (eNB), at least a portion of the logic comprised in hardware coupled to the at least one memory, the logic to receive an S1 paging message comprising a user equipment (UE) identifier (ID) associated with a UE and an extended coverage (EC) capability indicator indicating that the UE is EC-capable and page the UE using an EC paging sequence based on receipt of the S1 paging message, the EC paging sequence to comprise a series of transmissions of a radio resource control (RRC) paging message, the logic to truncate the EC paging sequence based on a determination that the UE has responded to RRC paging. Other embodiments are described and claimed.
1. An apparatus, comprising:
at least one memory; and
logic for an evolved node B (eNB), at least a portion of the logic comprised in hardware coupled to the at least one memory, the logic to:
receive an S1 paging message comprising a user equipment (UE) identifier (ID) associated with a UE and an extended coverage (EC) capability indicator indicating that the UE is EC-capable;
page the UE using an EC paging sequence based on receipt of the S1 paging message, the EC paging sequence to comprise a series of transmissions of a radio resource control (RRC) paging message; and
truncate the EC paging sequence based on a determination that the UE has responded to RRC paging.
2. The apparatus of claim 1 , the logic to page the UE using the EC paging sequence in response to a determination that an EC-mode (ECM) flag comprised in the S1 paging message is set to indicate that the EC paging sequence is to be used to page the UE.
3. The apparatus of claim 1 , the logic to page the UE using the EC paging sequence in response to a determination that a paging count value comprised in the S1 paging message indicates that the S1 paging message corresponds to a repeat attempt to reach the UE.
4. The apparatus of claim 1 , the logic to identify a number of paging repetitions to be comprised in the EC paging sequence based on a repetition count value comprised in the S1 paging message.
5. The apparatus of claim 1 , the logic to determine that the UE has responded to RRC paging in response to receipt of an RRCConnectionRequest message or an RRCConnectionSetupComplete message from the UE.
6. The apparatus of claim 1 , the logic to determine that the UE has responded to RRC paging in response to receipt of an S1 INITIAL CONTEXT SETUP REQUEST message from a mobility management entity (MME).
7. The apparatus of claim 1 , the logic to determine that the UE has responded to RRC paging in response to receipt of an S1 PAGING STOP message from a mobility management entity (MME).
8. The apparatus of claim 1 , the logic to:
receive a second S1 paging message comprising a second UE ID associated with a second UE and an EC capability indicator indicating that the second UE is EC-capable;
page the second UE using a short paging sequence in response to:
a determination that a paging count value comprised in the second S1 paging message indicates that the second S1 paging message corresponds to an initial attempt to reach the second UE; or
a determination that an EC-mode (ECM) flag comprised in the second S1 paging message is set to indicate that the EC paging sequence is not to be used to page the second UE.
9. A system, comprising:
the apparatus of claim 1 ; and
at least one radio frequency (RF) transceiver.
10. An apparatus, comprising:
at least one memory; and
logic for a mobility management entity (MME), at least a portion of the logic comprised in hardware coupled to the at least one memory, the logic to:
receive an S1 capability information message comprising an indication that user equipment (UE) is extended coverage (EC)-capable;
send an S1 paging message to instruct an evolved node B (eNB) to use an EC paging sequence to page the UE; and
in response to a determination that the UE has responded to paging, send an S1 paging stop message to instruct the eNB to terminate the EC paging sequence.
11. The apparatus of claim 10 , the logic to determine that the UE has responded to paging based on receipt of an S1 message from a second eNB.
12. The apparatus of claim 10 , the S1 paging message to comprise a parameter indicating that the EC paging sequence is to be used.
13. The apparatus of claim 12 , the parameter to indicate that the S1 paging message comprises a repeat attempt to reach the UE.
14. The apparatus of claim 10 , the logic to determine to instruct the eNB to use the EC paging sequence to page the UE in response to a determination that the eNB serves a cell in which the UE was last known to be located.
15. The apparatus of claim 14 , the S1 paging message to comprise an EC-mode (ECM) flag that is set to indicate that the EC paging sequence is to be used to page the UE.
16. The apparatus of claim 15 , the logic to send a second S1 paging message to instruct a second eNB to use a short paging sequence to page the UE, the second S1 paging message to comprise an EC-mode flag that is set to indicate that the EC paging sequence is not to be used to page the UE.
17. The apparatus of claim 10 , the logic to:
instruct the eNB to use a short paging sequence to page the UE; and
based on a determination that the UE has not responded to paging during the short paging sequence, send the S1 paging message to instruct the eNB to use the EC paging sequence to page the UE.
18. An apparatus, comprising:
at least one memory; and
logic, at least a portion of which is in hardware coupled to the at least one memory, the logic to:
send, from extended coverage (EC)-capable user equipment (UE) in a connected mode, a capability information message comprising an EC capability indicator;
transition the EC-capable UE into an idle mode; and
in response to a determination that the EC-capable UE has entered an EC region of a cell since transitioning into the idle mode, trigger a procedure to notify a serving evolved node B (eNB) of the cell that the EC-capable UE is located in the EC region of the cell.
19. The apparatus of claim 18 , the capability information message to comprise a radio resource control (RRC) UECapabilitylnformation message.
20. The apparatus of claim 18 , the EC-capable UE to comprise a limited-capability type (LCT) UE.
21. The apparatus of claim 20 , the capability information message to comprise the EC capability indicator and LCT information to indicate that the EC-capable UE comprises an LCT UE.
22. The apparatus of claim 21 , the capability information message to comprise a radio resource control (RRC) UECapabilitylnformation message, the LCT information to comprise a Category 0 indicator or a Category M indicator.
23. The apparatus of claim 18 , the procedure to comprise a Tracking Area Update procedure or a Service Request procedure.
24. The apparatus of claim 18 , the logic to determine that the EC-capable UE has entered the EC region of the cell based on one or more signal measurements for the cell.
25. The apparatus of claim 18 , the logic to determine that the EC-capable UE has entered the EC region of the cell based on a determination that the EC-capable UE has entered the cell from an EC region of a second cell.