METHOD FOR ACCESS BY A MOBILE STATION TO A CORE NETWORK VIA A AN UNLICENSED MOBILE ACCESS NETWORK

• US 20070254653A1
• Filed: 04/26/2007
• Published: 11/01/2007
• Est. Priority Date: 04/28/2006
• Status: Abandoned Application

• Current Assignee: Alcatel-Lucent SA (Nokia Corporation)
• Original Assignee: Alcatel-Lucent SA (Nokia Corporation)
• Inventors: Bultinck, Alain, Pierre, Jean-Paul
• Application Number:
  US11/740,597
• Publication Number:
  US 20070254653A1
• Time in Patent Office: Days
• US Class Current: 455/435.100
• CPC Class Codes: H04W 48/18 Selecting a network or a communication service
• CPC Class Codes: H04W 68/12 Inter-network notification

Abstract

A method for access to a Core Network CN via an Unlicensed Mobile Access Network/Generic Access Network UMAN/GAN, by a dual mode Mobile Station MS supporting access to said CN either via said UMAN/GAN or via a Radio Access Network RAN, said method comprising the steps of, in a non active state of said MS:

• • detecting if said MS is under coverage of both UMAN/GAN and RAN,
  • if it is detected that said MS is under coverage of both UMAN/GAN and RAN, selecting a RAN cell for camping on by the MS.

Claims

1. A method for access to a Core Network CN via an Unlicensed Mobile Access Network/Generic Access Network UMAN/GAN, by a dual mode Mobile Station MS supporting access to said CN either via said UMAN/GAN or via a Radio Access Network RAN, said method comprising the steps of, in a non active state of said MS:

detecting if said MS is under coverage of both UMAN/GAN and RAN,

if it is detected that said MS is under coverage of both UMAN/GAN and RAN, selecting a RAN cell for camping on by the MS.

2. A method according to claim 1, comprising the steps of, upon reception by the CN of an incoming call for the MS, and in case where the MS is in a UMAN/GAN cell and in a RAN cell which belong to different Location Areas:

sending a paging request by the CN to the MS via the RAN,

establishing a call between the CN and the MS via the RAN,

performing a handover from RAN to UMAN/GAN.

3. A method according to claim 1, comprising the steps of, upon reception by the CN of an incoming call for the MS, and in case where the MS is in a UMAN/GAN cell and in a RAN cell which belong to a same Location Area:

sending a paging request by the CN on the one hand to the MS via the RAN, and and on the other hand to the UMAN/GAN,

upon reception of said paging request by the UMAN/GAN, storing said paging request in the UMAN/GAN,

upon reception of said paging request by the MS, initiating an attachment procedure via the UMAN/GAN,

upon completion of said attachment procedure, sending the stored paging request by the UMAN/GAN to the MS,

establishing a call between the CN and the MS via the UMAN/GAN.

4. A Mobile Station MS supporting access to a Core Network CN either via an Unlicensed Mobile Access Network/Generic Access Network UMAN/GAN or via a Radio Access Network RAN, comprising:

means for, in a non active state, detecting if said MS is under coverage of both UMAN/GAN and RAN,

means for, if it is detected that said MS is under coverage of both UMAN/GAN and RAN, selecting a RAN cell for camping on by the MS.

5. A Mobile Station MS according to claim 4, comprising:

means for, upon establishing a call between the CN and the MS via the RAN, performing a handover of said call from RAN to UMAN/GAN.

6. A Mobile Station MS according to claim 4, comprising:

means for, upon reception of a paging request sent by the CN via the RAN, initiating an attachment procedure via the UMAN/GAN.

7. A Unlicensed Mobile Network Controller/Generic Access Network Controller UNC/GANC, comprising:

means for, upon reception of a paging request from the Core Network CN, for a Mobile Station MS not already attached via Unlicensed Mobile Access Network/Generic Access Network UMAN/GAN, storing said paging request,

means for, upon completion of an attachment procedure via UMAN/GAN for said MS, sending the stored paging request to the MS via UMAN/GAN.