Dual band unidirectional scheme in a cellular mobile radio telecommunications system
First Claim
1. A cellular radio telecommunications system comprising a first cellular radio telecommunications network for providing frequency division duplex radio transmissions over an air interface to one or more fixed or mobile terminals and a second cellular unidirectional radio telecommunications network which at least partly overlaps the first cellular radio telecommunications network for providing unidirectional simplex radio transmissions over an air interface to the one or more fixed or mobile terminals, wherein unidirectional radio transmission capacity of the second network is associated with duplex radio transmission capacity of the first network.
6 Assignments
0 Petitions
Accused Products
Abstract
A cellular radio telecommunications system and method of operating the same is described which includes a first cellular radio telecommunications network for providing frequency division duplex radio transmissions over an air interface to one or more fixed or mobile terminals and a second cellular unidirectional radio telecommunications network which at least partly overlaps the first cellular radio telecommunications network for providing unidirectional simplex radio transmissions over an air interface to the one or more fixed or mobile terminals. At least one of access to the unidirectional second cellular network and handover of a communication supported by the unidirectional second cellular network is managed by the first cellular network. A special dedicated uplink channel may be provided in the first network for trasmitting uplink control and/or error messages of the second network.
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Citations
20 Claims
- 1. A cellular radio telecommunications system comprising a first cellular radio telecommunications network for providing frequency division duplex radio transmissions over an air interface to one or more fixed or mobile terminals and a second cellular unidirectional radio telecommunications network which at least partly overlaps the first cellular radio telecommunications network for providing unidirectional simplex radio transmissions over an air interface to the one or more fixed or mobile terminals, wherein unidirectional radio transmission capacity of the second network is associated with duplex radio transmission capacity of the first network.
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8. A method of operating a cellular radio telecommunications system comprising the steps of:
- providing frequency division duplex radio transmissions over an air interface to one or more fixed or mobile terminals in a first cellular radio telecommunications network;
providing unidirectional simplex radio transmissions over an air interface to the one or more fixed or mobile terminals in a second cellular unidirectional radio telecommunications network which at least partly overlaps the first cellular radio telecommunications network; and
asssociating unidirectional radio transmission capacity of the second network with duplex radio transmission capacity of the first network. - View Dependent Claims (9, 10, 11, 12, 13, 14)
- providing frequency division duplex radio transmissions over an air interface to one or more fixed or mobile terminals in a first cellular radio telecommunications network;
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15. A base station transceiver system providing frequency division duplex radio transmissions over an air interface to one or more fixed or mobile terminals in a first cellular radio telecommunications network and for providing unidirectional simplex radio transmissions over an air interface to the one or more fixed or mobile terminals in a second cellular unidirectional radio telecommunications network which at least partly overlaps the first cellular radio telecommunications network.
- 16. A user equipment providing frequency division duplex radio transmissions over an air interface with one or more base station transceivers in a first cellular radio telecommunications network and for receiving unidirectional simplex radio transmissions over an air interface from one or more base stations transceivers in a second cellular unidirectional radio telecommunications network which at least partly overlaps the first cellular radio telecommunications network.
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19. A network element for a cellular radio telecommunications system comprising a first cellular radio telecommunications network for providing frequency division duplex radio transmissions over an air interface to one or more fixed or mobile terminals and a second cellular unidirectional radio telecommunications network which at least partly overlaps the first cellular radio telecommunications network for providing unidirectional simplex radio transmissions over an air interface to the one or more fixed or mobile terminals, the network element mapping an uplink control channel of the first cellular radio telecommunications network into a virtual uplink control channel of the second cellular unidirectional radio telecommunications network.
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20. A radio controller for a cellular radio telecommunications system comprising a first cellular radio telecommunications network for providing frequency division duplex radio transmissions over an air interface to one or more fixed or mobile terminals and a second cellular unidirectional radio telecommunications network which at least partly overlaps the first cellular radio telecommunications network for providing unidirectional simplex radio transmissions over an air interface to the one or more fixed or mobile terminals, wherein the radio controller is adapted to associate unidirectional radio transmission capacity of the second network with duplex radio transmission capacity of the first network.
Specification