IP Library Granted Patent US 10,341,903
Granted Patent B2
US 10,341,903 · App. 15/595,333 · Granted Jul 2, 2019

Method for accessing a service unavailable through a network cell

Inventors: Richard Charles Burbidge (Swindon, GB); Takashi Suzuki (Ichikawa, JP); David Philip Hole (Southampton, GB); Johanna Lisa Dwyer (Brookline, MA); Venkata Ratnakar Rao Rayavarapu (Bangalore, IN); Maiyuran Wijayanathan (Waterloo, CA); Stephen McCann (Southampton, GB); Andrew Mark Earnshaw (Kanata, CA); Chen Ho Chin (Deerlijk, BE)
Assignee: BlackBerry Limited
H04W36/0016H04W36/0022H04W36/0061H04W68/02H04W84/042H04W36/0085
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Quick Facts
Patent No.
US 10,341,903
App. No.
15/595,333
Granted
Jul 2, 2019
Kind
B2
Abstract

In an access device associated with a first network cell, a method for enabling user equipment (UE) to obtain a service unavailable through the first network cell includes receiving a request for the UE to access the service, and identifying, in a message to the UE, a plurality of second network cells providing the service.

Claims (61)

1. A method for enabling user equipment (UE) to obtain a service unavailable through a first network cell, the method comprising:

transmitting, by a UE, a first message including a request for the UE to access the service, wherein the service is a circuit-switched (CS) service; and

receiving, from the first network cell, a second message, wherein the second message identifies a plurality of second network cells providing the service, the second message includes system information of the plurality of second network cells, the system information identifies location areas of the plurality of second network cells, and the first network cell employs a different radio access technology (RAT) than the plurality of second network cells.

2. The method of claim 1 , wherein the service is circuit-switched voice.

3. The method of claim 1 , wherein the first network cell does not provide the service.

4. The method of claim 1 , wherein the request is a response to a paging message.

5. The method of claim 1 , wherein the second message directs the UE to connect to one of the plurality of second network cells.

6. The method of claim 1 , wherein the second message directs the UE to switch from a first radio access network associated with the first network cell to a second radio access network.

7. The method of claim 1 , wherein the second message directs the UE to release a connection with an access device.

8. A method for enabling user equipment (UE) to obtain a service not available through a first network cell, the method comprising:

connecting with an evolved Node B (eNB) associated with the first network cell in an evolved universal terrestrial radio access network (E-UTRAN);

transmitting, by the UE, a first message including a request for the UE to access the service, wherein the service is a circuit-switched (CS) service; and

receiving, from the eNB, a second message, wherein the second message identifies a plurality of second network cells providing the service, the second message includes system information of the plurality of second network cells, the system information identifies location areas of the plurality of second network cells, and the first network cell employs a different radio access technology (RAT) than the plurality of second network cells.

9. The method of claim 8 , wherein the service is circuit-switched voice.

10. The method of claim 8 , wherein the first network cell does not provide the service.

11. The method of claim 8 , wherein the request is a response to a paging message.

12. The method of claim 8 , wherein the second message directs the UE to connect to one of the plurality of second network cells.

13. The method of claim 8 , wherein the second message directs the UE to switch from a first radio access network associated with the first network cell to a second radio access network.

14. The method of claim 8 , wherein the second message directs the UE to release a connection with an access device.

15. A user equipment (UE) to obtain a service unavailable through a first network cell, comprising:

at least one hardware processor;

a non-transitory computer-readable storage medium coupled to the at least one hardware processor and storing programming instructions for execution by the at least one hardware processor, wherein the programming instructions instruct the at least one hardware processor to:

transmit a first message including a request for the UE to access the service, wherein the service is a circuit-switched (CS) service; and

receive, from the first network cell, a second message, wherein the second message identifies a plurality of second network cells providing the service, the second message includes system information of the plurality of second network cells, the system information identifies location areas of the plurality of second network cells, and the first network cell employs a different radio access technology (RAT) than the plurality of second network cells.

16. The UE of claim 15 , wherein the service is circuit-switched voice.

17. The UE of claim 15 , wherein the first network cell does not provide the service.

18. The UE of claim 15 , wherein the request is a response to a paging message.

19. The UE of claim 15 , wherein the second message directs the UE to connect to one of the plurality of second network cells.

20. The UE of claim 15 , wherein the second message directs the UE to switch from a first radio access network associated with the first network cell to a second radio access network.

21. The UE of claim 15 , wherein the second message directs the UE to release a connection with an access device.

22. A non-transitory computer readable medium for enabling user equipment (UE) to obtain a service unavailable through a first network cell, the computer readable medium storing instructions to cause a processor to perform operations comprising:

transmitting, by a UE, a first message including a request for the UE to access the service, wherein the service is a circuit-switched (CS) service; and

receiving, from the first network cell, a second message, wherein the second message identifies a plurality of second network cells providing the service, the second message includes system information of the plurality of second network cells, the system information identifies location areas of the plurality of second network cells, and the first network cell employs a different radio access technology (RAT) than the plurality of second network cells.

23. The computer readable medium of claim 22 , wherein the service is circuit-switched voice.

24. The computer readable medium of claim 22 , wherein the first network cell does not provide the service.

25. The computer readable medium of claim 22 , wherein the request is a response to a paging message.

26. The computer readable medium of claim 22 , wherein the second message directs the UE to connect to one of the plurality of second network cells.

27. The computer readable medium of claim 22 , wherein the second message directs the UE to switch from a first radio access network associated with the first network cell to a second radio access network.

28. The computer readable medium of claim 22 , wherein the second message directs the UE to release a connection with an access device.

29. A non-transitory computer readable medium for enabling user equipment (UE) to obtain a service not available through a first network cell, the computer readable medium storing instructions to cause a processor to perform operations comprising:

connecting with an evolved Node B (eNB) associated with the first network cell in an evolved universal terrestrial radio access network (E-UTRAN);

transmitting, by the UE, a first message including a request for the UE to access the service, wherein the service is a circuit-switched (CS) service; and

receiving, from the eNB, a second message, wherein the second message identifies a plurality of second network cells providing the service, the second message includes system information of the plurality of second network cells, the system information identifies location areas of the plurality of second network cells, and the first network cell employs a different radio access technology (RAT) than the plurality of second network cells.

30. The computer readable medium of claim 29 , wherein the service is circuit-switched voice.

31. The computer readable medium of claim 29 , wherein the first network cell does not provide the service.

32. The computer readable medium of claim 29 , wherein the request is a response to a paging message.

33. The computer readable medium of claim 29 , wherein the second message directs the UE to connect to one of the plurality of second network cells.

34. The computer readable medium of claim 29 , wherein the second message directs the UE to switch from a first radio access network associated with the first network cell to a second radio access network.

35. The computer readable medium of claim 29 , wherein the second message directs the UE to release a connection with an access device.

36. A user equipment (UE) for enabling user equipment (UE) to obtain a service not available through a first network cell, comprising:

at least one hardware processor;

a non-transitory computer-readable storage medium coupled to the at least one hardware processor and storing programming instructions for execution by the at least one hardware processor, wherein the programming instructions instruct the at least one hardware processor to:

connect with an evolved Node B (eNB) associated with the first network cell in an evolved universal terrestrial radio access network (E-UTRAN);

transmit a first message including a request for the UE to access the service, wherein the service is a circuit-switched (CS) service; and

receive, from the eNB, a second message, wherein the second message identifies a plurality of second network cells providing the service, the second message includes system information of the plurality of second network cells, the system information identifies location areas of the plurality of second network cells, and the first network cell employs a different radio access technology (RAT) than the plurality of second network cells.

37. The UE of claim 36 , wherein the service is circuit-switched voice.

38. The UE of claim 36 , wherein the first network cell does not provide the service.

39. The UE of claim 36 , wherein the request is a response to a paging message.

40. The UE of claim 36 , wherein the second message directs the UE to connect to one of the plurality of second network cells.

41. The UE of claim 36 , wherein the second message directs the UE to switch from a first radio access network associated with the first network cell to a second radio access network.

42. The UE of claim 36 , wherein the second message directs the UE to release a connection with an access device.

Assignments (6)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 1, 2017
From: DWYER, JOHANNA LISA; WIJAYANATHAN, MAIYURAN; EARNSHAW, MARK
To: RESEARCH IN MOTION LIMITED
Reel/Frame 042881/0029 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 1, 2017
From: SUZUKI, TAKASHI
To: RESEARCH IN MOTION JAPAN LIMITED
Reel/Frame 042881/0046 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 1, 2017
From: RESEARCH IN MOTION JAPAN LIMITED
To: RESEARCH IN MOTION LIMITED
Reel/Frame 042881/0050 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 1, 2017
From: RESEARCH IN MOTION UK LIMITED
To: RESEARCH IN MOTION LIMITED
Reel/Frame 042881/0057 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 1, 2017
From: BURBIDGE, RICHARD CHARLES; HOLE, DAVID PHILIP; RATNAKAR RAO RAYAVARAPU, VENKATA; MCCANN, STEPHEN; CHIN, CHEN HO
To: RESEARCH IN MOTION UK LIMITED
Reel/Frame 043072/0815 →
CHANGE OF NAME Recorded Jul 1, 2017
From: RESEARCH IN MOTION LIMITED
To: BLACKBERRY LIMITED
Reel/Frame 043072/0922 →
Continuity (5)
Continuation 15199017 · Jun 30, 2016
Continuation 14489220 · Sep 17, 2014
Continuation 12817154 · Jun 16, 2010
Provisional Application 61187636 · Jun 16, 2009
Related Publication 20170251406A1 · Aug 31, 2017