EP0676907A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method and apparatus for call handover between different mobile radio networks
Assignee: Motorola Solutions Inc
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Filing: 1995-03-16
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Granted: —
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Expires: 2015-03-16
Abstract
Abstract A method of inter-network call handover for handing over a call from an initial communications network to a target communications network. A call is established between a mobile radio (12) and the initial communications network (10 or 11) using a first identification number allocated to that unit in the initial network. A desire to handover to the target network is identified and a new link in the target network (11 or 10 respectively) is established using a second identification number allocated to the mobile radio (12) in the target network.
Inventors
- 👤 Nicholas William Whinnett
- 👤 William Neil Robinson
- 👤 Jonathan Alastair Gibbs
- 👤 Anthony Van Den Heuvel
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 14:40
CPC Classifications
H; H04; H04W; H04W36/00; H04W36/0005; H04W36/0055; H04W36/0066
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
113 words
A method of inter-network call handover, for handing over a call from an initial communications network to a target communications network, comprising the steps of: establishing a call between a mobile subscriber unit and the initial communications network using a first identification number allocated to that unit in the initial network, identifying that a handover to the target network is desired providing the initial network with a second identification number allocated to the unit in the target network; initiating a call transfer request to establish a call to the unit in the target network using the second identification number and establishing a new link in the target network using the second identification number.
Claim 2
Independent Claim
142 words
A method of inter-network call handover, for handing over a call from an initial communications network to a target communications network, comprising the steps of: establishing a call between a mobile subscriber unit and the initial communications network using a first identification number allocated to that unit in the initial network; pre-providing, to a predetermined node in the initial network, a second identification number allocated to the unit in the target network; identifying that a handover to the target network is desired; initiating a request to establish a call to the unit in the target network using the second identification number by providing a signal from the mobile subscriber unit to the predetermined node requesting a handover to the mobile subscriber unit identified by the second identification number; and establishing a new link in the target network using the second identification number.
Claim 3
Dependent Claim
54 words
A method according to claim 2, comprising the initial step of establishing a communication path between the predetermined node and a second party, wherein the predetermined node establishes a communication path to the mobile subscriber unit via the target network, maintains the communication path to the second party and links the two communication paths.
Claim 4
Independent Claim
19 words
A method according to either of claims 2 and 3, wherein the predetermined node is a cordless base station.
Claim 5
Independent Claim
177 words
A method of inter-network call handover, for handing over a call between a mobile subscriber unit and a second party from an initial communications network to a target communications network, comprising the steps of: associating the mobile subscriber unit with a first identification number allocated to the mobile subscriber unit in the target network and with a predetermined node in the target network; establishing a call between the mobile subscriber unit and the initial communications network using a second identification number allocated to that unit in the initial network; establishing a communication path between the mobile subscriber unit and the predetermined node in the target network via the initial network; establishing a communication path between the predetermined node in the target network and the second party and linking, at the predetermined node, the two communication paths; identifying that a handover to the target network is desired; establishing a call to the mobile subscriber unit in the target network using the second identification number; and connecting, at the predetermined node, the mobile subscriber unit and the second party.
Claim 6
Dependent Claim
24 words
A method according to claim 5, comprising the further step of disconnecting the call between the mobile subscriber unit and the initial communications network.
Claim 7
Dependent Claim
15 words
A method according to claim 5, wherein the predetermined node is a cordless base station.
Claim 8
Dependent Claim
38 words
A method according to claim 7, wherein the step of determining that a handover is desired comprises identifying from pretermined cell site information that the mobile subscriber unit and the cordless base station are in a predetermined relationship.
References Cited (Backward Citations)
No citation records indexed.
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