Sk Telecom Company, Ltd.

Young Ho Joo

Ki Mun Kim

Sang Yun Lee

Hee Hyeok Hahm

Jae Young Ju

Young Ahn Ryu

Min Seok Kim

Won Jun Lee

Jae Yong Park

Disclosed herein is a system and method for providing a packet network-based MRBT service. In the method, when an originating MSC () requests call termination location information from an HLR (), the HLR transmits an MRBT service request message, including a calling number and a called number, to an MRBT server (). The MRBT server returns an MRBT service response message, including URL of MRBT content, to the HLR. The HLR transmits a call termination location information response message to the originating MSC, with MRBT service ID information and called party MRBT content URL information included in the call termination location information response message. The originating MSC () transmits called party MRBT content URL information to an originating MS () on a basis of the MRBT service ID information. The originating MS accesses the MRBT content URL, downloads relevant MRBT content, and plays and stores the MRBT content.

System and method for providing packet network-based multimedia ringback tone service

The present invention presents a method for providing the location information of a mobile station(MS) by selectively using a DBM-based method and a TCP/IP-based method on a global positioning system(GPS) in a mobile telecommunication network constituted of a client server, a mobile positioning center(MPC), a home location register(HLR), and a position determination Entity(PDE). By selectively using a DBM-based method or a TCP/IP-based method according to the type of requested service, the present invention enables to reduce the time required for obtaining the accurate location. Moreover, it can provide the requested location based service(LBS) on an MS even when the MS is on-line or on stand-by mode.

Method for providing the location information on a mobile station based on DBM and TCP/IP

The present invention discloses a method for tracking location of synchronous and asynchronous mobile communication network subscribers by using a dual stack home location register and a dual stack mobile positioning center. When the dual stack mobile positioning center externally receives a location tracking request for a subscriber, it requests reception subscriber information to the dual stack home location register, confirms whether the terminal is located in a synchronous or asynchronous mobile communication network by referring to the reception subscriber information from the dual stack home location register and network information, and requests location tracking for the terminal to the corresponding mobile communication network. Accordingly, location of the synchronous and asynchronous mobile communication network subscribers can be tracked in the network in which mobile communication networks using different protocols coexist.

Method for tracking location of subscribers in dual stack mobile communication network

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Kyungki-do, South Korea

Young Ho Joo