Communication system with an extended coverage area
First Claim
1. A method for extending the radio coverage area (13) of a communication system (20) operating according to a predetermined radio protocol (40), the system comprising a primary station (12) having a radio coverage area, a first secondary station (22) within the coverage area and a further secondary station (24) which is located outside of the radio coverage area of the primary station, the method comprising a message exchange process (80,84) in which:
- the first secondary station receives from the primary station messages intended for the further secondary station; and
transmits said messages to the further secondary station; and
the first secondary station receives from the further secondary station messages intended for the primary station; and
transmits said messages to the primary station.
1 Assignment
0 Petitions
Accused Products
Abstract
A radio communication system (20) is described having a primary-secondary star-like topology, and wherein further secondary stations/devices (24) located outside of the radio coverage area (13) of the primary station are enabled to communicate with the primary station (12) via a first secondary station (22) located within the coverage area of the primary station (12). This is achieved by the first secondary station (22) registering the further secondary station(s) with both itself and the primary station (12), following which messages are exchanged between the primary station and the further secondary station(s) via the first secondary station according to translation of identity codes allocated at the time of registration.
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Citations
17 Claims
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1. A method for extending the radio coverage area (13) of a communication system (20) operating according to a predetermined radio protocol (40), the system comprising a primary station (12) having a radio coverage area, a first secondary station (22) within the coverage area and a further secondary station (24) which is located outside of the radio coverage area of the primary station, the method comprising a message exchange process (80,84) in which:
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the first secondary station receives from the primary station messages intended for the further secondary station; and
transmits said messages to the further secondary station; and
the first secondary station receives from the further secondary station messages intended for the primary station; and
transmits said messages to the primary station. - View Dependent Claims (2, 3, 4, 5, 6)
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- 7. A communication system operating according to a predetermined radio protocol and comprising a primary station (12) having a radio coverage area (13), a first secondary station (22) within the coverage area and a further secondary station (24) which is located outside of the radio coverage area of the primary station, the first secondary station having means (32,34,50) for receiving from the primary station messages intended for the further secondary station, for transmitting said messages to the further secondary station, for receiving from the further secondary station messages intended for the primary station and for transmitting said messages to the primary station.
- 12. A first secondary station (22) for use in a communication system (20) operating according to a predetermined radio protocol (40) and having a primary station (12) having a radio coverage area, and a further secondary station (24) which is located outside of the radio coverage area of the primary station, the first secondary station (22) being located within the radio coverage area of the primary station and comprising means for receiving from the primary station messages intended for the further secondary station, for transmitting said messages to the further secondary station, for receiving from the further secondary station messages intended for the primary station and for transmitting said messages to the primary station.
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Specification