Wire/wireless unified in-building communication method and system
First Claim
1. A communication method in a wireless in-building communication system connected to a public land mobile network including a mobile switching center and a base station controller, said method comprising the steps of:
- forming a common cell area in which a wireless public communication service and a wireless in-building communication service are available through a private base station;
requesting a communication service at a mobile terminal in the common cell area;
determining, in response to the requesting of the communication service, whether the mobile terminal is registered for the wireless in-building communication service;
providing the wireless in-building communication service to a registered mobile terminal; and
bypassing the communication service request of an unregistered mobile terminal to the public land mobile network.
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Accused Products
Abstract
A unified in-building communication method in a communication system connected to a public land mobile network (PLMN), a public switched telephone network/integrated services digital network (PSTN/ISDN), and an Internet protocol (IP) network is disclosed. The method comprises setting a common cell area such that a wireless public or wireless in-company communication service is available in a prescribed local area; and connecting a mobile switching center (MSC) to the PLMN, using a registered mobile terminal as an extension telephone in the common cell area, and bypassing an unregistered mobile terminal, so that the PLMN can share a base station. The registered mobile terminal communicates with a wire extension terminal or a wireless extension terminal, and the registered mobile terminal wirelessly receives a data service through the IP network. The wireless in-building communication service of the present invention is performed in a single cell so that a handoff does not occur. The wireless in-building communication service of the present invention is performed such that, even for the same service provider, when the registered mobile terminal moves out of the common cell and moves into the PLMN and vice versa, the handoff does not occur.
66 Citations
15 Claims
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1. A communication method in a wireless in-building communication system connected to a public land mobile network including a mobile switching center and a base station controller, said method comprising the steps of:
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forming a common cell area in which a wireless public communication service and a wireless in-building communication service are available through a private base station; requesting a communication service at a mobile terminal in the common cell area; determining, in response to the requesting of the communication service, whether the mobile terminal is registered for the wireless in-building communication service; providing the wireless in-building communication service to a registered mobile terminal; and bypassing the communication service request of an unregistered mobile terminal to the public land mobile network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A unified in-building communication apparatus connected to a public land mobile network, said apparatus comprising:
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a private base station for forming a common cell area in which a public land mobile network service and an in-building wireless network service are available; a call manager responsive to a communication service request from a mobile terminal in the common cell area for determining whether the mobile terminal is registered for the in-building wireless network service, and for controlling provision of a corresponding service according to a result of the determination; and a public/private communication service unit responsive to control by said call manager for providing the in-building wireless network service to a registered mobile terminal, and for bypassing the communication service request of an unregistered mobile terminal to the public land mobile network. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification