Handover between fixed and mobile networks for dual mode phones
First Claim
1. A telecommunications system for performing a handover between a fixed network and a mobile network during a call on a given one of a plurality of dual mode devices, said telecommunications system comprising:
- a handover application located within said given dual mode device, said handover application initiating, in response to detecting said given dual mode device leaving a fixed mode coverage area associated with said fixed network, a call request to a mobile subscription number associated with said given dual mode device in said mobile network, said call request including a fixed subscription number associated with said given dual mode device in said fixed network, said handover application subsequently recognizing said fixed subscription number within an incoming call to said dual mode device from said mobile network and instructing said dual mode device to answer said incoming call to establish a connection with the mobile network, said handover application further disconnecting an established link between said given dual mode device and said fixed network after establishment of the connection with the mobile network;
an end office within said fixed network for establishing a connection with said mobile network and forwarding said call request to said mobile network in response to receiving said call request from said handover application; and
a mobile services center within said mobile network for forwarding said call request to said mobile subscription number associated with said dual mode device in response to said end office establishing a connection therewith.
1 Assignment
0 Petitions
Accused Products
Abstract
A telecommunications system and method for performing a handover between the fixed (wireline) network and a mobile network during a call placed to or from a dual mode device, without any interruption in the voice or data connection. Therefore, for calls initiated in the fixed network, once the subscriber leaves the coverage area for the fixed mode of the dual mode device, the call continues as normal by transferring the call to the mobile network. Similarly, for calls initiated in the mobile network, once the subscriber moves back into the fixed mode coverage area, the call can be transferred to the fixed network in order to provide a lower rate to the subscriber, without any service interruption.
264 Citations
16 Claims
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1. A telecommunications system for performing a handover between a fixed network and a mobile network during a call on a given one of a plurality of dual mode devices, said telecommunications system comprising:
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a handover application located within said given dual mode device, said handover application initiating, in response to detecting said given dual mode device leaving a fixed mode coverage area associated with said fixed network, a call request to a mobile subscription number associated with said given dual mode device in said mobile network, said call request including a fixed subscription number associated with said given dual mode device in said fixed network, said handover application subsequently recognizing said fixed subscription number within an incoming call to said dual mode device from said mobile network and instructing said dual mode device to answer said incoming call to establish a connection with the mobile network, said handover application further disconnecting an established link between said given dual mode device and said fixed network after establishment of the connection with the mobile network;
an end office within said fixed network for establishing a connection with said mobile network and forwarding said call request to said mobile network in response to receiving said call request from said handover application; and
a mobile services center within said mobile network for forwarding said call request to said mobile subscription number associated with said dual mode device in response to said end office establishing a connection therewith. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for performing a handover within a telecommunications system between a fixed network and a mobile network during a call on a given one of a plurality of dual mode devices, said method comprising the steps of:
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determining, by a handover application located within said given dual mode device, during said call, when said given dual mode device leaves a fixed mode coverage area associated with said fixed network;
transmitting a call request to a mobile subscription number associated with said given dual mode device in said mobile network by means of an end office within said fixed network, said call request including a fixed subscription number;
forwarding said call request from said end office to a mobile services center within said mobile network;
forwarding, by said mobile services center, said call request including said fixed subscription number associated with said dual mode device in said fixed network;
recognizing, by said handover application, said fixed subscription number;
establishing a call connection to said mobile services center; and
disconnecting a call link between said given dual mode device and said end office. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A telecommunications system for performing a handover between a fixed network and a mobile network during a call on a given one of a plurality of dual mode devices, said telecommunications system comprising:
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a handover application located within said given dual mode device, said handover application initiating, in response to detecting said given dual mode device entering a fixed mode coverage area associated with said fixed network, a call request to a fixed subscription number associated with said given dual mode device in said fixed network, said call request including a mobile subscription number associated with said given dual mode device in said mobile network, said handover application subsequently recognizing said mobile subscription number within an incoming call to said dual mode device from said fixed network and instructing said dual mode device to answer said incoming call to establish a connection with the fixed network, said handover application further disconnecting said establish link between said given dual mode device and said mobile network after establishment of the connection with the fixed network;
a mobile services center within said mobile network for establishing a connection with said fixed network and forwarding said call request to said fixed network in response to receiving said call request from said handover application; and
an end office within said fixed network for forwarding said call request to said fixed subscription number associated with said dual mode device in response to said mobile services center establishing connection therewith. - View Dependent Claims (15)
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14. A method for performing a handover within a telecommunications system between a fixed network and a mobile network during a call on a given one of a plurality of dual mode devices, said method comprising the steps of:
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determining, by a handover application located within said given dual mode device, during said call, when said given dual mode device enters a fixed mode coverage area associated with said fixed network;
transmitting a call request to a fixed subscription number associated with said given dual mode device in said fixed network by means of a mobile services center within said mobile network, the call request including a mobile subscription number;
forwarding said call request from said mobile services center to an end office within said fixed network;
forwarding, by said end office, said call request including said mobile subscription number associated with said dual mode device in said mobile network;
recognizing, by said handover application, said mobile subscription number;
establishing a call connection to said end office; and
disconnecting a call link between said given dual mode device and said mobile services center. - View Dependent Claims (16)
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Specification