Method, system, network entity, and end-user terminal for controlling a handover of a cellular terminal
First Claim
1. A method, comprising:
- determining to communicate traffic via an uplink connection of a digital bi-directional communications service,receiving a measurement about available downlink radio signals,determining to select according to a predetermined criteria one of the available downlink radio signals,determining to change to the selected available downlink radio signal for in part performing a handover so that said handover is performed only between a downlink of the digital bi-directional communications service and a digital unidirectional broadcast communications service, anddetermining to complete said handover, wherein with said completion of said handover traffic communication is maintained via the uplink connection of the digital bi-directional communications service, wherein the traffic was communicated, prior to said handover, via the same uplink connection.
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Accused Products
Abstract
A method, a system and an end-user terminal for providing a handover between a digital unidirectional data communication domain and a digital bi-directional data communication domain is disclosed. Exemplary domains can be a broadcast network such as IP over DVB (Digital Video Broadcasting) network, or a broadcast mode, in further examples IP over DVB-T (Terrestrial DVB) or alternatively referred to as IPDC (IP Datacast), the 3G (The Third Generation for Mobile Communication) network, in further examples UTRAN (UMTS Terrestrial Radio Access Node). The embodiments apply measurement signalling structure of the Inter-system handover of ULMTS (Universal Mobile Telephone System) to control the handover. The measurements of the cell is extended to contain digital unidirectiona communications domain cells such as IP over DVB cells, as well as apply these cells to perform the handover. The fact that one of the network is principally delivering one (unidirectional) leads to a partial handover where the downlink data of the bi-directional network is applied in the handover. The unidirectional communications domain is already in a downlink transmission which knits the handover with the downlink of the bi-directional domain.
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Citations
26 Claims
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1. A method, comprising:
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determining to communicate traffic via an uplink connection of a digital bi-directional communications service, receiving a measurement about available downlink radio signals, determining to select according to a predetermined criteria one of the available downlink radio signals, determining to change to the selected available downlink radio signal for in part performing a handover so that said handover is performed only between a downlink of the digital bi-directional communications service and a digital unidirectional broadcast communications service, and determining to complete said handover, wherein with said completion of said handover traffic communication is maintained via the uplink connection of the digital bi-directional communications service, wherein the traffic was communicated, prior to said handover, via the same uplink connection. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method, comprising:
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determining to communicate, from a user apparatus, traffic via an uplink connection of a cellular mobile data communication domain, determining to measure, at the user apparatus, received downlink radio signals of the cellular mobile data communication domain and a digital broadcast data communication domain, determining to send a measurement report of said received downlink radio signals to said cellular mobile data communication domain, receiving a handover command at said user apparatus for changing to another available downlink radio signal, determining to send a confirmation from said user apparatus to the digital broadcast data communication domain for moving a downlink service delivered via the cellular mobile data communication domain to the digital broadcast data communication domain, wherein a handover corresponding to said command comprises a partial handover so that the signals and service relating to a downlink of the cellular mobile data communication domain are configured to be handed over to the digital broadcast data communication domain, and determining to complete, at said user apparatus, said handover, wherein with said completion of said handover traffic communication is maintained via the uplink connection of the cellular mobile data communication domain, wherein the traffic was communicated, prior to said handover, via the same uplink connection. - View Dependent Claims (21)
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22. A method, comprising:
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determining to communicate, from a user apparatus, traffic via an uplink connection of a cellular mobile data communication domain, determining to measure, at said user apparatus, received downlink radio signals of a digital broadcast data communication domain and the cellular mobile data communication domain, determining to send a measurement report of said received downlink radio signals to said digital broadcast data communication domain, receiving a handover command at said user apparatus for changing to another available downlink radio signal, determining to send a confirmation from said user apparatus to the cellular mobile data communication domain for moving a downlink service delivered via the digital broadcast data communication domain to a downlink of the cellular mobile data communication domain, wherein a handover corresponding to said command comprises a partial handover so that signals and service relating to the digital broadcast data communication domain are configured to be handed over to a downlink of the cellular mobile data communication domain, and determining to complete, at said user apparatus, said handover, wherein with said completion of said handover traffic communication is maintained via the uplink connection of the cellular mobile data communication domain, wherein the traffic was communicated, prior to said handover, via the same uplink connection. - View Dependent Claims (23)
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24. An apparatus, comprising:
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a processor; and a memory including computer program code, the memory and the computer program code configured to, with the processor, cause the apparatus at least to perform; determine to communicate traffic via an uplink connection of a digital bi-directional communications service, receive a measurement about available downlink radio signals, determine to select according to a predetermined criteria one of the available downlink radio signals, determine to change to the selected available downlink radio signal for in part performing a handover corresponding to said command so that said handover is configured to be established performed only between a downlink of the digital bi-directional communications service and a digital unidirectional broadcast communications service, and determine to complete said handover, wherein with said completion of said handover traffic communication is maintained via the uplink connection of the digital bi-directional communications service, wherein the traffic was communicated, prior to said handover, via the same uplink connection.
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25. An apparatus, comprising:
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a transceiver configured to determine to communicate traffic via an uplink connection of a cellular mobile data communication domain, a receiver configured to determine to measure received downlink radio signals of the cellular mobile data communication domain and a digital broadcast data communication domain, said transceiver further configured to determine to send a measurement report of said received downlink radio signals to said cellular mobile data communication domain, said receiver further configured to receive a handover command for changing to another available downlink radio signal, and said transceiver further configured to determine to send a confirmation to the digital broadcast data communication domain for moving a downlink service delivered via the cellular mobile data communication domain to the digital broadcast data communication domain, wherein a handover corresponding to said command comprises a partial handover so that the signals and service relating to a downlink of the cellular mobile data communication domain are configured to be handed over to the digital broadcast data communication domain and determine to complete said handover, wherein with said completion of said handover traffic communication is maintained via the uplink connection of the cellular mobile data communication domain, wherein the traffic was communicated, prior to said handover, via the same uplink connection.
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26. An apparatus, comprising:
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a processor configured to determine to communicate traffic via an uplink connection of a cellular mobile data communication domain, a receiver configured to determine to measure received downlink radio signals of a digital broadcast data communication domain and the cellular mobile data communication domain, said processor further configured to determine to send a measurement report of said received downlink radio signals to said digital broadcast data communication domain, said processor further configured to receive a handover command for changing to another available downlink radio signal, said processor further configured to determine to send a confirmation to the cellular mobile data communication domain for moving a downlink service delivered via the digital broadcast data communication domain to a downlink of the cellular mobile data communication domain, wherein a handover corresponding to said command comprises a partial handover so that signals and service relating to the digital broadcast data communication domain are configured to be handed over to a downlink of the cellular mobile data communication domain, and said processor further configured to determine to complete said handover, wherein with said completion of said handover traffic communication is maintained via the uplink connection of the cellular mobile data communication domain, wherein the traffic was communicated, prior to said handover, via the same uplink connection.
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Specification