Array antenna, method and device for transmitting and receiving signal
First Claim
1. A method for transmitting data using at least two active antennas, wherein each active antenna is surrounded by at least two different parasitic antennas, wherein respective parasitic antennas are respectively coupled to controllable loads, and wherein the controllable loads are respectively coupled to a control circuit, the method comprising:
- determining, by a signal transmitting device, whether a downlink channel is in a good state according to channel change predictions, channel quality report feedback or uplink data transmission conditions; and
if the channel is in the good state, selecting an orthogonal transmitting combination, and adjusting reactance of the controllable loads via the control circuit according to the orthogonal transmitting combination, and bearing the data of the signal transmitting device in a mode command by using a multiplexing mode to transmit data to a signal receiving device;
or if the channel is not in the good state, selecting a relevant transmitting combination, and adjusting the reactance of the controllable loads via the control circuit according to the relevant transmitting combination, adjusting transmitting directional diagrams of the active antennas according to a transmitting beamforming vector to transmit data, and bearing the data of the signal transmitting device in the mode command by using a beamforming mode to transmit it to the signal receiving device.
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Accused Products
Abstract
The present application discloses an array antenna, a method and a device for transmitting and receiving a signal. The array antenna includes at least two active antennas, wherein each active antenna is surrounded by at least two different parasitic antennas, respective parasitic antennas are respectively coupled to controllable loads, and the controllable loads are respectively coupled to a control circuit. With the arrangement of at least two active antennas, when a channel is in a good state, channel capacity can be adjusted by adjusting the controllable loads coupled to the parasitic antennas; and when the channel is not in the good state, the bit error ratio can be reduced by both adjusting the controllable loads coupled to the parasitic antennas and adjusting transmitting directional diagrams of the active antennas according to an adjustment vector, meanwhile, miniaturization can also be realized.
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Citations
12 Claims
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1. A method for transmitting data using at least two active antennas, wherein each active antenna is surrounded by at least two different parasitic antennas, wherein respective parasitic antennas are respectively coupled to controllable loads, and wherein the controllable loads are respectively coupled to a control circuit, the method comprising:
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determining, by a signal transmitting device, whether a downlink channel is in a good state according to channel change predictions, channel quality report feedback or uplink data transmission conditions; and if the channel is in the good state, selecting an orthogonal transmitting combination, and adjusting reactance of the controllable loads via the control circuit according to the orthogonal transmitting combination, and bearing the data of the signal transmitting device in a mode command by using a multiplexing mode to transmit data to a signal receiving device;
or if the channel is not in the good state, selecting a relevant transmitting combination, and adjusting the reactance of the controllable loads via the control circuit according to the relevant transmitting combination, adjusting transmitting directional diagrams of the active antennas according to a transmitting beamforming vector to transmit data, and bearing the data of the signal transmitting device in the mode command by using a beamforming mode to transmit it to the signal receiving device. - View Dependent Claims (2, 3, 4)
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5. A signal transmitting device, comprising:
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at least two active antennas, wherein each active antenna is surrounded by at least two different parasitic antennas, wherein respective parasitic antennas are respectively coupled to controllable loads, and wherein the controllable loads are respectively coupled to a control circuit; a determining module, configured to determine whether a downlink channel is in a good state according to channel change predictions, channel quality report feedback or uplink data transmission conditions, and to transmit a first determining result to a selecting and adjusting module; and the selecting and adjusting module, configured to; receive the first determining result; when the channel is in the good state, select an orthogonal transmitting combination, and adjust reactance of the controllable loads via the control circuit according to the orthogonal transmitting combination to transmit data, and bear the data of the signal transmitting device in a mode command by using a multiplexing mode to transmit data to a signal receiving device; and when the channel is not in the good state, select a relevant transmitting combination, and adjust the reactance of the controllable loads via the control circuit according to the relevant transmitting combination, and adjust transmitting directional diagrams of the active antennas according to a transmitting beamforming vector to transmit data, and bear the data of the signal transmitting device in the mode command by using a beamforming mode to transmit it to the signal receiving device. - View Dependent Claims (6, 7, 8)
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9. A signal receiving device, comprising:
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at least two active antennas, wherein each active antenna is surrounded by at least two different parasitic antennas, wherein respective parasitic antennas are respectively coupled to controllable loads, and wherein the controllable loads are respectively coupled to a control circuit; a determining module, configured to receive a mode command, and determine whether a signal transmitting device uses a multiplexing mode or a beamforming mode according to the mode command, and transmit a first determining result to a selecting and adjusting module; and the selecting and adjusting module, configured to; receive the first determining result; when the signal transmitting device uses the multiplexing mode, select an orthogonal receiving combination, and adjust reactance of the controllable loads via the control circuit according to the orthogonal receiving combination to receive a signal; and when the signal transmitting device uses the beamforming mode, select a relevant receiving combination, and adjusting the reactance of the controllable loads via the control circuit according to the relevant receiving combination, and adjust receiving directional diagrams of the active antennas according to a receiving beamforming vector to receive the signal. - View Dependent Claims (10, 11, 12)
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Specification