Load dependent receiver configuration

• US 9,755,679 B1
• Filed: 07/08/2016
• Issued: 09/05/2017
• Est. Priority Date: 07/08/2016
• Status: Active Grant

• Current Assignee: NXP B.V. (NXP Semiconductors NV)
• Original Assignee: NXP B.V. (NXP Semiconductors NV)
• Inventors: Wobak, Markus, Kormann, Leonhard
• Primary Examiner(s): Alam, Fayyaz
• Application Number:
  US15/206,146
• Time in Patent Office: 424 Days
• Field of Search: 455 77, 455129, 455 411- 413
• CPC Class Codes: H04B 1/14 Automatic detuning arrangements
• CPC Class Codes: H04B 5/72 for local intradevice communication

Abstract

A communication device is disclosed. The communication device includes a receiver, a transmitter, a memory, a sensor to measure antenna detuning, a plurality of receiver configurations stored in the memory. Each of the plurality of receiver configurations include parameter-value pairs and a control unit, coupled to the sensor and the receiver, to select a receiver configuration from the plurality of receiver configurations based on an output of the sensor. The control unit is configured to alter a processing behavior of the receiver by altering values of receiver control parameters according to the parameter-value pairs.

Claims

1. A communication device, comprising:

a receiver, wherein the receiver includes an analog RF receiver frontend, an analog-to-digital converter (ADC) coupled to the analog RF receiver frontend, and a digital signal processing unit coupled to the ADC;

a transmitter comprising an analog RF transmitter frontend;

a sensor to measure antenna detuning, wherein the sensor is configured to monitor at least one of a voltage and a current in a signal path coupled to an antenna and matching network;

a memory;

a plurality of receiver configurations stored in the memory, wherein each of the plurality of receiver configurations include parameter-value pairs; and

a control unit, coupled to the sensor and the receiver, to select a receiver configuration from the plurality of receiver configurations based on an output of the sensor, wherein the control unit is configured to configure the receiver by altering values of receiver control parameters according to the parameter-value pairs.

2. The communication device of claim 1, further comprising a second sensor coupled to the transmitter to measure a load on the transmitter.

3. The communication device of claim 2, wherein the control unit is further configured to select a receiver configuration from the plurality of receiver configurations based on an output of the second sensor.

4. The communication device of claim 1, wherein the sensor or the control unit is configured to measure an amount of detuning based on a change in the monitored voltage or current.

5. The communication device of claim 2, wherein the second sensor is configured to monitor at least one of a voltage and a current in a signal path from the transmitter to an antenna and matching network.

6. The communication device of claim 5, wherein the second sensor or the control unit is configured to measure a load based on variations in the current or the voltage measured by the second sensor.

7. The communication device of claim 1, further including a digital logic, coupled to the receiver and the transmitter, to process instructions embedded in an analog signal received by the receiver.

8. The communication device of claim 7, wherein the digital logic is further configured to generate instructions that are embedded in a transmitted analog signal by the transmitter.

9. The communication device of claim 1, wherein the receiver includes a sub-control unit coupled to the control unit, wherein the sub-control unit is configured to transform control signals received from the control unit.

10. The communication device of claim 2, wherein a function performed by the second sensor is performed by the sensor.

11. A method of dynamically configuring a communication device including a receiver and a transmitter, the method comprising:

measuring detuning of an antenna and matching network, wherein the measuring of the detuning includes monitoring one of a voltage and a current in a signal path coupled to the antenna and matching network;

selecting a receiver configuration from a plurality of receiver configurations based on the measuring of the detuning of the antenna and matching network, wherein each of the plurality of receiver configurations include parameter-value pairs; and

configuring the receiver by altering values of receiver control parameters according to the parameter-value pairs.

12. The method of claim 11, further comprising measuring a load on the transmitter.

13. The method of claim 12, further including selecting a receiver configuration from the plurality of receiver configurations based on the measuring the load on the transmitter.

14. The method of claim 12, wherein the measuring of the load includes monitoring at least one of a voltage and a current in a signal path from the transmitter to the antenna and matching network.

15. The method of claim 11, further including processing instructions embedded in an analog signal received by the receiver.

16. The method of claim 11, further including generating instructions that are embedded in a transmitted analog signal by the transmitter.

17. A communication device, comprising:

an antenna and matching network;

a receiver, wherein the receiver includes an analog RF receiver frontend, an analog-to-digital converter (ADC) coupled to the analog RF receiver frontend, and a digital signal processing unit coupled to the ADC;

a transmitter comprising an analog RF transmitter frontend;

a sensor to measure antenna detuning, wherein the sensor is configured to monitor at least one of a voltage and a current in a signal path between at least one of the receiver and the transmitter and the antenna and matching network;

a memory;

a plurality of receiver configurations stored in the memory, wherein each of the plurality of receiver configurations include parameter-value pairs; and

a control unit, coupled to the sensor and the receiver, to select a receiver configuration from the plurality of receiver configurations based on an output of the sensor and a communication protocol, wherein the control unit is configured to configure the receiver by altering values of receiver control parameters according to the parameter-value pairs.