Scheme for providing regulatory compliance in performing network selection in a foreign country

• US 7,447,502 B2
• Filed: 01/14/2005
• Issued: 11/04/2008
• Est. Priority Date: 01/14/2005
• Status: Expired due to Fees

• Current Assignee: Malikie Innovations Limited (Key Patent Innovations Limited)
• Original Assignee: Blackberry Limited
• Inventors: Buckley, Adrian, Carpenter, Paul, Alfano, Nicholas P.
• Primary Examiner(s): Kincaid; Lester
• Assistant Examiner(s): MITCHELL, NATHAN A
• Application Number:
  US11/035,510
• Publication Number:
  US 20060160532A1
• Time in Patent Office: 1,390 Days
• Field of Search: 455/432.1, 455/435.1, 455/435.2, 455/435.3, 455/434, 455/411, 455/414.1, 455/433, 370/331
• US Class Current: 455/434
• CPC Class Codes: H04W 48/18 Selecting a network or a communication service

Abstract

In one embodiment, a scheme for providing regulatory compliance in network selection by a user equipment (UE) device that is operable to discover an equivalent home network in a foreign country. Upon receiving a network identity code from a network node, a determination is made if the network identified by the network identity code is an equivalent home network with respect to a subscriber identity associated with the UE device. If so, network scanning is performed by the UE device in accordance with scanning procedures specified for a home country associated with the subscriber identity provided that the geographic code portion of the network country code identifies a geographic area in the home country of the subscriber identity. Otherwise, network scanning is performed by the UE device in accordance with scanning procedures specified for a foreign geographic region identified in the network identity code.

Claims

1. A network selection method in a user equipment(UE) device in a location area, comprising:

receiving a network identity code;

determining that a network identified by said network identity code is an equivalent home network with respect to a subscriber identity associated with said UE device;

responsive to said determining, further determining whether a geographic code associated with said equivalent home network is associated with a home geographic region associated with said subscriber identity;

responsive to determining that said geographic code is associated with said home geographic region, performing network scanning in accordance with scanning procedures specified for said home geographic region associated with said subscriber identity; and

responsive to determining that said geographic code is not associated with said home geographic region, performing network scanning in accordance with scanning procedures specified for a foreign geographic region identified in said network identity code.

2. The network selection method as recited in claim 1, wherein said network identity code identifies a network that comprises a Public Land Mobile Network (PLMN) selected from at least one of a General Packet Radio Service (GPRS) network, an Enhanced Data Rates for Global System for Mobile Communications (GSM) Evolution (EDGE) network, a 3^rd Generation Partnership Project (3GPP)-compliant network, an Integrated Digital Enhanced Network (IDEN), a Code Division Multiple Access (CDMA) network, a Universal Mobile Telecommunications System (UMTS) network, and a Time Division Multiple Access (TDMA) network.

3. The network selection method as recited in claim 1, wherein said network identity code comprises a combination of a Mobile Country Code (MCC) and a Mobile Network Code (MNC), said MCC depending on geographic location of a network node providing said network identity code.

4. The network selection method as recited in claim 1, further comprising:

determining if said scanning procedures specified for said foreign geographic region fail to establish connectivity with a network node providing said network identity code; and

if so, performing network scanning in accordance with said scanning procedures specified for said home geographic region.

5. The network selection method as recited in claim 1, wherein said subscriber identity comprises an International Mobile Subscriber Identity (IMSI) parameter.

6. The network selection method as recited in claim 1, wherein said receiving includes receiving said network identity code while said UE device is in idle mode.

7. The network selection method as recited in claim 1, wherein said network identity code identifies a network that comprises a wireless access network operable with a Wireless Local Area Network (WLAN) standard selected from at least one of:

IEEE 802.11b standard, IEEE 802.11a standard, IEEE 802.11g standard, HiperLan standard, HiperLan II standard, Wi-Max standard, OpenAir standard, and Bluetooth standard.

8. The network selection method as recited in claim 1, wherein said network identity code comprises a System Identification (SID) parameter.

9. A user equipment (UE) device, comprising:

a logic module operable to determine if a network identified by a network identity code is an equivalent home network with respect to a subscriber identity associated with said UE device;

a logic module, operable responsive to determining that said network is an equivalent home network, for further determining whether a geographic code associated with said equivalent home network is associated with a home geographic region associated with said subscriber identity;

means for performing network scanning in accordance with scanning procedures specified for home geographic region associated with said subscriber identity, said means operating responsive to determining that said geographic code associated with said equivalent home network identifies a home geographic region associated with said subscriber identity; and

means for performing network scanning in accordance with scanning procedures specified for a foreign geographic region identified in said network identity code responsive to determining that said geographic code associated with said equivalent home network does not identify a home geographic region associated with said subscriber identity.

10. The UE device as recited in claim 9, wherein said network identity code identifies a network that comprises a Public Land Mobile Network (PLMN) selected from at least one of a General Packet Radio Service (GPRS) network, an Enhanced Data Rates for Global System for Mobile Communications (GSM) Evolution (EDGE) network, a 3^rd Generation Partnership Project (3GPP)-compliant network, an Integrated Digital Enhanced Network (IDEN), a Code Division Multiple Access (CDMA) network, a Universal Mobile Telecommunications System (UMTS) network, and a Time Division Multiple Access (TDMA) network.

11. The UE device as recited in claim 9, wherein said network identity code comprises a combination of a Mobile Country Code (MCC) and a Mobile Network Code (MNC), said MCC depending on geographic location of a network node providing said network identity code.

12. The UE device as recited in claim 9, further comprising:

a logic module for determining if said scanning procedures specified for said foreign geographic region fail to establish connectivity with a network node providing said network identity code; and

means, operable responsive to said determining that said scanning procedures specified for said foreign geographic region have failed to establish said connectivity, for reverting to performing network scanning by said UE device in accordance with said scanning procedures specified for said home geographic region.

13. The UE device as recited in claim 9, wherein said subscriber identity comprises an International Mobile Subscriber Identity (IMSI) parameter.

14. The UE device as recited in claim 9, further comprising means, operable upon determining that said network identified by said network identity code is not an equivalent home network with respect to said subscriber identity, for performing scanning procedures specified for a geographic region identified in said network identity code.

15. The UE device as recited in claim 9, further comprising a transceiver module operable for scanning in a frequency band compliant with a wireless access network scanning process, and further wherein said network identity code identifies a network that comprises a wireless access network operable with a Wireless Local Area Network (WLAN) standard selected from at least one of:

IEEE 802.11b standard, IEEE 802.11a standard, IEEE 802.11g standard, HiperLan standard, HiperLan II standard, Wi-Max standard, OpenAir standard, and Bluetooth standard.

16. The UE device as recited in claim 9, wherein said network identity code comprises a System Identification (SID) parameter.