Dual stack mobile communication system

• US 20050078703A1
• Filed: 12/28/2002
• Published: 04/14/2005
• Est. Priority Date: 12/29/2001
• Status: Active Grant

• Current Assignee: SK Telecom Co., Ltd.
• Original Assignee: SK Telecom Co., Ltd.
• Inventors: Lee, Sang-Yun, Kim, Soo-Jin, Cho, Hyung-Joon, Hahm, Hee-Hyeok
• Granted Patent: US 7,489,658 B2
• Time in Patent Office: Days
• US Class Current: 370/466
• CPC Class Codes: H04W 88/16 Gateway arrangements

Abstract

The present invention discloses a dual stack mobile communication system for building a single interworking network of an old network which is a 2G/2.5G synchronous mobile communication network such as CDMA2000 communication network and a new network which is a 3G asynchronous mobile communication network such as a universal mobile telecommunications service (UMTS) network in a mobile communication network where the old network and the new network have coexisted the dual stack mobile communication system of the mobile communication network in which the old synchronous network and the new asynchronous network coexist forms a single node by combining same kind nodes of the old network and the new network, wherein the single node searches information for generating two output signal points according to a synchronous protocol and an asynchronous protocol in one input signal point according to the synchronous protocol or asynchronous protocol, and generates one output signal point. As a result, the dual stack mobile communication system can smoothly interwork the old network and the new network in all the services which have been individually provided in the old network and the new network by overcoming mismatching of messages and subscriber profiles due to different protocols of the two networks, without introducing a gateway and a complicated message flow.

Claims

1. A dual stack mobile communication system of a mobile communication network in which an old synchronous network and a new asynchronous network coexist, which forms a single node by combining same kind nodes of the old network and the new network, wherein the single node searches information for generating two output signal points according to a synchronous protocol and an asynchronous protocol in one input signal point according to the synchronous protocol or asynchronous protocol, and generates one output signal point.

2. The system according to claim 1, wherein the dual stack single mode comprises a home location register, a short message service center and a service control point which is an intelligence network managing device.

3. A dual stack mobile communication system of a mobile communication network in which an old synchronous network and a new asynchronous network coexist, comprising:

a synchronous mobile communication system composed of a base station for performing radio section communication with a mobile terminal, a base station controller for controlling the base station, a synchronous mobile switching center connected to at least one base station for switching calls, a CGS connected between a public switched telephone network and the synchronous mobile switching center for switching network interworking calls with the public switched telephone network, and a packet data serving node connected to the base station controller and an internet protocol network for providing packet data services;

an asynchronous mobile communication system composed of a node B which is a base station for performing radio section communication with a mobile terminal, a radio network controller for controlling the node B, an asynchronous mobile switching center connected to at least one radio network controller for switching calls, an asynchronous gate mobile switching center connected between the public switched telephone network and the asynchronous mobile switching center for switching network interworking calls with the public switched telephone network, and an asynchronous packet switching center connected between the radio network controller and the IP network for providing packet data services;

an SS7 network for mutually connecting the synchronous mobile switching center, the synchronous CGS, the asynchronous gate mobile switching center and the asynchronous packet switching center to switch calls;

a dual stack home location register connected to the SS7 network for managing call processing databases such as location registration of the synchronous/asynchronous network subscribers, searching information for generating two output signal points according to a synchronous protocol and an asynchronous protocol in one input signal point according to the synchronous protocol or asynchronous protocol, generating one output signal point, and outputting a corresponding message to the output signal point;

a dual stack short message service center connected to the SS7 network for managing short message'"'"'services for the synchronous/asynchronous network subscribers, searching information for generating two output signal points according to the synchronous protocol and the asynchronous protocol in one input signal point according to the synchronous protocol or asynchronous protocol, generating one output signal point, and outputting a corresponding message to the output signal point; and

a dual stack service control point connected to the SS7 network for managing intelligence network services for the synchronous/asynchronous network subscribers, searching information for generating two output signal points according to the synchronous protocol and the asynchronous protocol in one input signal point according to the synchronous protocol or asynchronous protocol, generating one output signal point, and outputting a corresponding message to the output signal point.