Radio communication using multiple antennas and localization variables
First Claim
1. A method for radio communication with several antennas in a given frequency band, the method using an apparatus for radio communication comprising n antennas, where n is an integer greater than or equal to 2, the method comprising the steps of:
- estimating a plurality of localization variables, each of the plurality of localization variables being determined based on a distance between a part of a human body and a zone of the apparatus for radio communication, a first localization variable of the plurality of localization variables being based on a distance between a first part of the human body and a first zone of the apparatus for radio communication, a second localization variable of the plurality of localization variables being based on a distance between a second part of the human body and a second zone of the apparatus for radio communication, the first zone of the apparatus for radio communication and the second zone of the apparatus for radio communication being distinct from one another;
coupling said n antennas, directly or indirectly, to an antenna tuner comprising;
n antenna ports,m radio ports, andp adjustable impedance devices, m being an integer greater than or equal to 2 and p being an integer greater than or equal to 2 m, the p adjustable impedance devices being such that, at a frequency in said given frequency band, each of the adjustable impedance devices has a reactance, the reactance of any one of the adjustable impedance devices being adjustable by electrical means; and
generating a tuning instruction, the generated tuning instruction being based on each of the plurality of localization variables,wherein the reactance of each of the adjustable impedance devices is adjusted by the tuning instruction based on the plurality of localization variables.
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Abstract
The invention relates to a method for radio communication using multiple antennas and localization variables, and to an apparatus for radio communication using multiple antennas and localization variables. An apparatus for radio communication of the invention comprises: 4 antennas, the 4 antennas forming an antenna array; a radio device; a sensor unit estimating a plurality of localization variables; an antenna tuning apparatus having 4 antenna ports, each of the antenna ports being coupled to one of the antennas through a feeder, the antenna tuning apparatus having 4 radio ports, each of the radio ports being coupled to the radio device through an interconnection; and a tuning control unit, the tuning control unit receiving a tuning instruction generated automatically within the apparatus for radio communication, the tuning control unit delivering a plurality of tuning control signals to the antenna tuning apparatus.
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Citations
18 Claims
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1. A method for radio communication with several antennas in a given frequency band, the method using an apparatus for radio communication comprising n antennas, where n is an integer greater than or equal to 2, the method comprising the steps of:
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estimating a plurality of localization variables, each of the plurality of localization variables being determined based on a distance between a part of a human body and a zone of the apparatus for radio communication, a first localization variable of the plurality of localization variables being based on a distance between a first part of the human body and a first zone of the apparatus for radio communication, a second localization variable of the plurality of localization variables being based on a distance between a second part of the human body and a second zone of the apparatus for radio communication, the first zone of the apparatus for radio communication and the second zone of the apparatus for radio communication being distinct from one another; coupling said n antennas, directly or indirectly, to an antenna tuner comprising; n antenna ports, m radio ports, and p adjustable impedance devices, m being an integer greater than or equal to 2 and p being an integer greater than or equal to 2 m, the p adjustable impedance devices being such that, at a frequency in said given frequency band, each of the adjustable impedance devices has a reactance, the reactance of any one of the adjustable impedance devices being adjustable by electrical means; and generating a tuning instruction, the generated tuning instruction being based on each of the plurality of localization variables, wherein the reactance of each of the adjustable impedance devices is adjusted by the tuning instruction based on the plurality of localization variables. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus for radio communication using several antennas in a given frequency band, the apparatus for radio communication including n antennas, where n is an integer greater than or equal to 2, the apparatus for radio communication comprising:
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a localizer configured to estimate a plurality of localization variables, each of the plurality of localization variables being determined based on a distance between a part of a human body and a zone of the apparatus for radio communication, a first localization variable of the plurality of localization variables being based on a distance between a first part of the human body and a first zone of the apparatus for radio communication, a second localization variable of the plurality of localization variables being based on a distance between a second part of the human body and a second zone of the apparatus for radio communication, the first zone of the apparatus for radio communication and the second zone of the apparatus for radio communication being distinct from one another; at least one processor configured to deliver a tuning instruction based on each of the plurality of localization variables; an antenna tuner comprising; n antenna ports, m radio ports, and p adjustable impedance devices, m being an integer greater than or equal to 2 and p being an integer greater than or equal to 2 m, the p adjustable impedance devices being such that, at a frequency in said given frequency band, each of the adjustable impedance devices has a reactance, the reactance of any one of the adjustable impedance devices being adjustable by electrical means; and at least one tuning processor, the at least one tuning processor configured to; receive the tuning instruction, and deliver a plurality of tuning control signals to the antenna tuner, the tuning control signals being determined as a function of the tuning instruction, wherein the reactance of each of the adjustable impedance devices is adjusted by one or more of the tuning control signals based on the plurality of localization variables. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification