Method for accessing a service unavailable through a network cell

Patent metadata

Field	Value
Publication number	US-9426697-B2
Application number	US-201414489220-A
Country	US
Kind code	B2
Filing date	Sep 17, 2014
Priority date	Jun 16, 2009
Publication date	Aug 23, 2016
Grant date	Aug 23, 2016

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.

First claim

What is claimed is:

1. An access device associated with a first network cell for enabling user equipment (UE) to obtain a service unavailable through the first network cell, comprising:
one or more processors configured to:
receive a request for the UE to access the service; and
identify, in a message to the UE, a plurality of second network cells providing the service and system information of the plurality of second network cells.

2. The access device of claim 1 , wherein the service is voice.

3. The access device of claim 1 , wherein the service is circuit-switched voice.

4. The access device of claim 1 , wherein the first network cell does not provide the service.

5. The access device of claim 1 , wherein the first network cell provides the service using a protocol incompatible with the UE's capability.

6. The access device of claim 1 , wherein the request is received from the UE.

7. The access device of claim 1 , wherein the request is a response to a paging message.

8. The access device of claim 1 , wherein the message directs the UE to connect to one of the plurality of second network cells.

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

10. The access device of claim 1 , wherein the message directs the UE to release a connection with the access device.

11. The access device of claim 1 , wherein the message identifies location areas of the plurality of second network cells.

12. The access device of claim 1 , wherein the first network cell and the plurality of second network cells employ different radio access technologies (RAT).

13. An evolved Node B (eNB) associated with a first network cell in an evolved universal terrestrial radio access network (E-UTRAN) for enabling user equipment (UE) to obtain a service not available through the first network cell, the eNB comprising:
one or more processors configured to:
connect with the UE;
receive a request for the UE to access the service; and
identify, in a message to the UE, a plurality of second network cells providing the service and system information of the plurality of second network cells.

14. The eNB of claim 13 , wherein the service is voice.

15. The eNB of claim 13 , wherein the service is circuit-switched voice.

16. The eNB of claim 13 , wherein the first network cell does not provide the service.

17. The eNB of claim 13 , wherein the first network cell provides the service using a protocol incompatible with the UE's capability.

18. The eNB of claim 13 , wherein the request is received from a user of the UE.

19. The eNB of claim 13 , wherein the request is a response to a paging message.

20. The eNB of claim 13 , wherein the plurality of second network cells are in one of a universal terrestrial radio access network (UTRAN), a global system for mobile communications (GSM) network, an evolution-data optimized (EV-DO) network, a 3GSM network, a digital enhanced cordless (DECT) network, a digital AMPS (IS-136/TDMA) network, an integrated digital enhanced network (iDEN), a universal mobile telecommunications system (UMTS), an enhanced data rates for GSM evolution (EDGE) network, a general packet radio service (GPRS) network, and a GPRS/EDGE radio access network (GERAN).

21. The eNB of claim 20 , wherein the message is a mobility from E-UTRA command (“MobilityFromEUTRACommand”).

22. The eNB of claim 13 , wherein the message directs the UE to release a connection with the eNB.

23. The eNB of claim 22 , wherein the message identifies the carrier frequencies of the access devices associated with the plurality of second network cells.

24. The eNB of claim 13 , wherein the message identifies location areas of the plurality of second network cells.

Assignees

• Blackberry Ltd

Inventors

• Burbidge Richard Charles
• Suzuki Takashi
• Hole David Philip
• Dwyer Johanna Lisa
• Rayavarapu Venkata Ratnakar Rao
• Wijayanathan Maiyuran
• Mccann Stephen
• Earnshaw Andrew Mark
• Chin Chen Ho

Classifications

• H04W36/0085

  Hand-off measurements · CPC title

• H04W36/0061

  of neighbour cell information · CPC title

• H04W36/0016 Primary

  Hand-off preparation specially adapted for end-to-end data sessions · CPC title

• H04W84/042

  Public Land Mobile systems, e.g. cellular systems · CPC title

• H04W68/02

  Arrangements for increasing efficiency of notification or paging channel · CPC title