Communication system, a primary radio station, a secondary radio station, and a communication method
First Claim
1. A communication system comprising a primary radio station and a portable radio station, said portable radio station being freely three-dimensionally orientable with respect to a fixed coordinate system, said primary radio station being configured to communicate with said portable radio station, said portable radio station comprising:
- a transceiver;
a controllable antenna structure coupled to said transceiver;
a three-dimensional geometric sensor for three-dimensionally sensing a local magnetic field;
a beam directional controller, said beam directional controller being coupled to said controllable antenna structure, and said beam directional controller being configured to three-dimensionally control with respect to a main axis of said portable radio station of a beam radiated by said controllable antenna structure on the basis of said sensed local magnetic field, such that, after an initial adjustment of said beam of said controllable antenna structure to a predetermined three-dimensional direction with respect to said main axis, said controllable antenna substantially retains said beam directed into said predetermined three-dimensional direction, irrespective of a subsequent orientation of said portable radio station with respect to said fixed coordinate system.
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Accused Products
Abstract
A communication system has a primary radio station and a portable radio station. The primary radio station communicates with the portable radio station. The portable radio station is freely three-dimensionally orientable with respect to a fixed coordinate system. The portable radio station has a transceiver, a controllable antenna structure, and a beam directional controller for three-dimensionally controlling a beam radiated by the controllable antenna structure. The portable radio station further has a three-dimensional geometric sensor for three-dimensionally sensing a local magnetic field. The beam is controlled on the basis of the sensed local magnetic field. Beam control is such that, after an initial adjustment of the beam into a given direction with respect to a main axis of the portable radio station, the controllable antenna structure substantially retains the beam directed into the given direction, irrespective of a subsequent orientation of the portable radio station with respect to the fixed coordinate system.
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Citations
17 Claims
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1. A communication system comprising a primary radio station and a portable radio station, said portable radio station being freely three-dimensionally orientable with respect to a fixed coordinate system, said primary radio station being configured to communicate with said portable radio station, said portable radio station comprising:
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a transceiver;
a controllable antenna structure coupled to said transceiver;
a three-dimensional geometric sensor for three-dimensionally sensing a local magnetic field;
a beam directional controller, said beam directional controller being coupled to said controllable antenna structure, and said beam directional controller being configured to three-dimensionally control with respect to a main axis of said portable radio station of a beam radiated by said controllable antenna structure on the basis of said sensed local magnetic field, such that, after an initial adjustment of said beam of said controllable antenna structure to a predetermined three-dimensional direction with respect to said main axis, said controllable antenna substantially retains said beam directed into said predetermined three-dimensional direction, irrespective of a subsequent orientation of said portable radio station with respect to said fixed coordinate system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A primary radio station for use in a communication system comprising said primary radio station and a portable radio station for communicating with said primary radio station, said portable radio station being freely three-dimensionally orientable with respect to a fixed coordinate system, and said portable radio station comprising a transceiver, a controllable antenna structure coupled to said transceiver, a three-dimensional geometric sensor for three-dimensionally sensing a local magnetic field, and a beam directional controller, said beam directional controller being coupled to said controllable antenna structure, and said beam directional controller being configured to three-dimensionally control with respect to a main axis of said portable radio station of a beam radiated by said controllable antenna structure on the basis of said sensed local magnetic field, such that, after an initial adjustment of said beam of said controllable antenna structure to a predetermined three-dimensional direction with respect to said main axis, said controllable antenna substantially retains said beam directed into said predetermined three-dimensional direction, irrespective of a subsequent orientation of said portable radio station with respect to said fixed coordinate system, said primary radio station comprising:
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means for acquiring local magnetic field information; and
means for transmitting said acquired local magnetic field information to said portable radio station, said portable radio station using received local magnetic field information for said initial adjustment.
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16. A portable radio station for use in a communication system comprising a primary radio station and said portable radio station, said portable radio station being freely three-dimensionally orientable with respect to a fixed coordinate system, said primary radio station being configured to communicate with said portable radio station, said portable radio station comprising:
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a transceiver;
a controllable antenna structure coupled to said transceiver;
a three-dimensional geometric sensor for three-dimensionally sensing a local magnetic field;
a beam directional controller, said beam directional controller being coupled to said controllable antenna structure, and said beam directional controller being configured to three-dimensionally control with respect to a main axis of said portable radio station of a beam radiated by said controllable antenna structure on the basis of said sensed local magnetic field, such that, after an initial adjustment of said beam of said controllable antenna structure to a predetermined three-dimensional direction with respect to said main axis, said controllable antenna substantially retains said beam directed into said predetermined three-dimensional direction, irrespective of a subsequent orientation of said portable radio station with respect to said fixed coordinate system.
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17. A communication method for use in a communication system comprising a primary radio station and a portable radio station, said portable radio station being freely three-dimensionally orientable with respect to a fixed coordinate system and said portable radio station comprising a controllable antenna structure, said primary radio station being configured to communicate with said portable radio station, said communication method comprising:
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sensing a local magnetic field with a three-dimensional geometric sensor;
with respect to a main axis of said portable radio station three-dimensionally controlling a beam radiated by said controllable antenna structure on the basis of said sensed local magnetic field, such that, after an initial adjustment of said beam of said controllable antenna structure to a predetermined three-dimensional direction with respect to said main axis, said controllable antenna substantially retains said beam directed into said predetermined three-dimensional direction, irrespective of a subsequent orientation of said portable radio station with respect to said fixed coordinate system.
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Specification