Communication device
AssigneeGreenpeak Technologies B.V.
InventorAdriaan Kamerman
Life of this patent
Estimating the term…
Abstract
The invention relates to a communication device (2) comprising an antenna system (4) provided with at least one antenna (6a, 6b, 6c) for receiving a radio signal and supplying a received radio signal to an output (8) of the antenna system, a low noise amplifier (10) for amplification of the received radio signal to obtain an amplified radio signal, and a processing unit (12) for processing the amplified radio signal. The antenna system (4) is configured to supply in a first state a first antenna signal as the received radio signal and in a second state second antenna signal as the received radio signal, wherein the first antenna signal and second antenna signal differ in amplitude. The antenna system is further configured to switch from state in response to a control signal (14) generated by the processing unit (12).
Claims11
A communication device (2) comprising
- an antenna system (4) provided with at least one antenna (6a, 6b, 6c) for receiving a radio signal and supplying a received radio signal to an output (8) of the antenna system, a low noise amplifier (10) for amplification of the receive radio signal to obtain an amplified radio signal, and a processing unit (12) for processing the amplified radio signal, characterized in that the antenna system (4) is configured to supply in a first state a first antenna signal as the received radio signal through a first antenna path and in a second state a continuously attenuated second antenna signal as the received radio signal through a second antenna path,
- wherein the first and second antenna signal differ in amplitude,
- wherein the antenna system further is configured to switch from state in response to a control signal (14) generated by the processing unit (12),
- wherein the processing unit (12) is configured to determine regularly for the first state of the first antenna path and second state of the second antenna path a first signal quality and second signal quality, respectively,
- wherein the processing unit (12) is configured to generate for a subsequent radio signal a control signal corresponding to the first state if the first signal quality is higher than the second signal quality and a control signal corresponding to the second state if the second signal quality is higher than the first signal quality.
A method of receiving data packets from a radio signal in a communication device comprising:
- using an antenna system (4) provided with at least one antenna (6a, 6b, 6c) for receiving a radio signal and supplying a received radio signal to an output (8) of the antenna system, a low noise amplifier (10) for amplification of the receive radio signal to obtain an amplified radio signal, and a processing unit (12) for processing the amplified radio signal, characterized in that the antenna system (4) is configured to supply in a first state a first antenna signal as the received radio signal through a first antenna path and in a second state a continuously attenuated second antenna signal as the received radio signal through a second antenna path, wherein the first and second antenna signal differ in amplitude, wherein the antenna system further is configured to switch from state in response to a control signal (14) generated by the processing unit (12), wherein the processing unit (12) is configured to determine regularly for the first state and second state a first signal quality and second signal quality, respectively, wherein the processing unit (12) is configured to generate for a subsequent radio signal a control signal corresponding to the first state if the first signal quality is higher than the second signal quality and a control signal corresponding to the second state if the second signal quality is higher than the first signal quality;
- retrieving at least two antenna signals, wherein the at least two antenna signals differ in amplitude and have been obtained by an antenna system having at least two states, wherein an antenna signal has a corresponding state;
- determining for each of the at least two antenna signals a corresponding signal quality;
- and
- selecting the state of the at least two states providing the antenna signal having the highest signal quality.
Dependencies are inferred from the claim text.