DUAL MODE TERMINAL SUPPORTING LOCATION-BASED SERVICES AND CONTROL METHOD FOR THE SAME

• US 20110003602A1
• Filed: 07/01/2010
• Published: 01/06/2011
• Est. Priority Date: 07/02/2009
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: PARK, Seong Jin, KIM, Ki Hwan, KIM, Woo Yol
• Granted Patent: US 8,208,944 B2
• Time in Patent Office: Days
• US Class Current: 455/456.1
• CPC Class Codes: G01S 19/258 relating to the satellite constellation, e.g. almanac, ephemeris data, lists of satellites in view
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

A dual mode terminal for providing location-based services is provided. The dual mode terminal includes a first area including a first wireless communication unit for communication with a first communication network and a first processor for processing signals transmitted and received to and from the first communication network, and a second area including a second wireless communication unit for communication with a second communication network and a second processor for processing signals transmitted and received to and from the second communication network. The first wireless communication unit includes a GPS receiver for receiving satellite GPS signals. The first processor includes a GPS engine for processing network location information received from the first communication network and the second communication network, and the second processor transfers network location information received from the second communication network to the first processor.

Claims

1. A dual mode terminal for providing location-based services, the dual mode terminal comprising:

a first area including a first wireless communication unit for communication with a first communication network and a first processor for processing signals transmitted and received to and from the first communication network; and

a second area including a second wireless communication unit for communication with a second communication network and a second processor for processing signals transmitted and received to and from the second communication network,

wherein the first wireless communication unit includes a GPS receiver for receiving satellite GPS signals,

the first processor includes a GPS engine for processing network location information received from the first communication network and the second communication network, and

the second processor transfers network location information received from the second communication network to the first processor.

2. The dual mode terminal according to claim 1, wherein the GPS engine includes a module for processing a network location information protocol of the first communication network, and

the second processor includes a translator for converting a network location information protocol of the second communication network into the network location information protocol of the first communication network.

3. The dual mode terminal according to claim 1, wherein the GPS engine includes a module for processing a network location information protocol of the first communication network, and

the second processor includes a module for processing a network location information protocol of the second communication network and a module for processing a Secure User Plane Location (SUPL) protocol.

4. The dual mode terminal according to claim 2, wherein the network location information protocol of the first communication network is a 3GPP2 IS-801 protocol.

5. The dual mode terminal according to claim 2, wherein the network location information protocol of the second communication network is a Radio Resource Location services Protocol (RRLP) or a Radio Resource Control (RRC) protocol.

6. The dual mode terminal according to claim 1, wherein the first communication network is a Code Division Multiple Access (CDMA) communication network or a Wideband-CDMA (WCDMA) communication network, and the second communication network is a Long Term Evolution (LTE) communication network.

7. The dual mode terminal according to claim 1, wherein the dual mode terminal is connected to an application area, and

the first area further includes a module for determining whether data transmitted and received to and from the application area is data for communication with the first communication network or data for communication with the second communication network.

8. The dual mode terminal according to claim 1, further comprising a host interface for data transmission and reception between the first processor and the second processor.

9. The dual mode terminal according to claim 3, wherein the SUPL protocol is set to ignore 1-bit information for a Closed Subscriber Group (CSG) among 29-bit cell ID information received from the second communication network.

13. The dual mode terminal according to claim 3, wherein the network location information protocol of the first communication network is a 3GPP2 IS-801 protocol.

14. The dual mode terminal according to claim 3, wherein the network location information protocol of the second communication network is a Radio Resource Location services Protocol (RRLP) or a Radio Resource Control (RRC) protocol.

10. A method for measuring a location of a dual mode terminal including a CDMA area and an LTE area to allow the dual mode terminal to provide location-based services in a wireless communication system, the method comprising:

receiving a satellite GPS signal through a GPS receiver included in the CDMA area and transferring the satellite GPS signal to a GPS engine included in the CDMA area;

receiving network location information from a location information server connected to the LTE network through a wireless communication unit included in the LTE area;

converting the network location information into a CDMA location information protocol;

transferring the converted network location information to the GPS engine; and

measuring, by the GPS engine, a location of the dual mode terminal using the satellite GPS signal and the converted network location information.

11. The method according to claim 10, wherein the network location information is received using a Radio Resource Location services Protocol (RRLP) or a Radio Resource Control (RRC) protocol.

12. The method according to claim 10, wherein the CDMA location information protocol is a 3GPP2 IS-801 protocol.