Integrated radio communication system, mobile communication system, switching apparatus, radio terminal, and communication method
First Claim
1. An integrated wireless communication system composed of a wireless LAN system that performs wireless communication with a mobile terminal of a wireless LAN area and a mobile communication system linked to said wireless LAN system via exchange equipment, wherein said mobile communication system, when there is a request for communication with said mobile terminal from an external terminal, selects a communication path either via that mobile communication system or via said wireless LAN system.
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0 Petitions
Accused Products
Abstract
According to the present invention, in an integrated wireless communication system composed of a wireless LAN system 200 in which wireless communication is performed with mobile terminals 400 of a wireless LAN area 204, and a cellular system 100 that is linked to this wireless LAN system 200 via exchange equipment 300, a request from an external terminal for communication with a mobile terminal 400 or a request from a mobile terminal 400 for communication with an external terminal is received, and a communication path is selected and communication performed either via the cellular system 100 or via the wireless LAN system 200 according to this communication request.
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Citations
56 Claims
- 1. An integrated wireless communication system composed of a wireless LAN system that performs wireless communication with a mobile terminal of a wireless LAN area and a mobile communication system linked to said wireless LAN system via exchange equipment, wherein said mobile communication system, when there is a request for communication with said mobile terminal from an external terminal, selects a communication path either via that mobile communication system or via said wireless LAN system.
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34. Exchange equipment that links a wireless LAN system and a mobile communication system, said exchange equipment comprising:
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a user information exchange section that exchanges user information between said mobile communication system and wireless LAN system;
an authentication completion signal notification section that reports to said wireless LAN system an authentication completion signal sent from said mobile communication system according to an authentication request from said mobile terminal;
an IP address notification section that reports from said wireless LAN system to said mobile communication system an IP address obtained after said mobile terminal establishes a link with said wireless LAN system; and
a congestion status notification section that reports to said mobile communication system a congestion status in said wireless LAN system. - View Dependent Claims (35, 36, 37)
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38. A mobile terminal that is capable of communication with both a wireless LAN system and a mobile communication system, said mobile terminal comprising:
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a link establishment request section that requests a link with said wireless LAN system according to a request for establishment of a link with that wireless LAN system using a paging channel of said mobile communication system;
an authentication request signal transmitting section that transmits a signal requesting said mobile communication system to perform authentication necessary at a time of establishment of a link with said wireless LAN system; and
an IP address notification section that reports to said mobile communication system an IP address obtained after establishment of a link with said wireless LAN system. - View Dependent Claims (39, 40, 41, 42)
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43. A mobile communication system that is linked to a wireless LAN system that performs wireless communication with a mobile terminal of a wireless LAN area via exchange equipment, said mobile communication system comprising:
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a location information management section that manages as location information an IP address of said mobile terminal in said wireless LAN system obtained via said exchange equipment;
a communication path selection section that, when there is a request for communication with said mobile terminal from an external terminal, selects a communication path either via that mobile communication system or via said wireless LAN system; and
an IP address notification section that, when a communication path via said wireless LAN system is selected, reports to said external terminal an IP address of said mobile terminal in said location information management section. - View Dependent Claims (44, 45, 46, 47, 48)
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49. A communication method in an integrated wireless communication system composed of a wireless LAN system that performs wireless communication with a mobile terminal of a wireless LAN area and a mobile communication system linked to said wireless LAN system via exchange equipment, said communication method comprising the steps of:
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receiving a request for communication with said mobile terminal from an external terminal or a request for communication with an external terminal from said mobile terminal;
determining whether there is a communication path request in said communication request; and
selecting a communication path either via that mobile communication system or via said wireless LAN system according to said communication path request.
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50. A communication method in an integrated wireless communication system composed of a wireless LAN system that performs wireless communication with a mobile terminal of a wireless LAN area and a mobile communication system linked to said wireless LAN system via exchange equipment, said communication method comprising the steps of:
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receiving a request for communication with said mobile terminal from an external terminal or a request for communication with an external terminal from said mobile terminal;
determining transmit data capacity of information from said external terminal or transmit data capacity of information from said mobile terminal; and
selecting a communication path either via that mobile communication system or via said wireless LAN system according to that transmit data capacity. - View Dependent Claims (51, 52)
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53. A communication program in an integrated wireless communication system composed of a wireless LAN system that performs wireless communication with a mobile terminal of a wireless LAN area and a mobile communication system linked to said wireless LAN system via exchange equipment, said communication program causing execution by a computer of:
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a procedure that receives a request for communication with said mobile terminal from an external terminal or a request for communication with an external terminal from said mobile terminal;
a procedure that determines whether there is a communication path request in said communication request; and
a procedure that selects a communication path either via that mobile communication system or via said wireless LAN system according to said communication path request.
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54. A communication program in an integrated wireless communication system composed of a wireless LAN system that performs wireless communication with a mobile terminal of a wireless LAN area and a mobile communication system linked to said wireless LAN system via exchange equipment, said communication program causing execution by a computer of:
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a procedure that receives a request for communication with said mobile terminal from an external terminal or a request for communication with an external terminal from said mobile terminal;
a procedure that determines transmit data capacity of information from said external terminal or transmit data capacity of information from said mobile terminal; and
a procedure that selects a communication path either via that mobile communication system or via said wireless LAN system according to that transmit data capacity. - View Dependent Claims (55, 56)
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Specification