Wireless communication system with interference rejection mechanism and method of operation thereof

• US 9,882,685 B2
• Filed: 02/24/2014
• Issued: 01/30/2018
• Est. Priority Date: 03/14/2013
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Feygin, Gennady, Park, Joongsuk, Sorokine, Vladislav, Kang, Inyup
• Primary Examiner(s): Fan, Chieh M
• Assistant Examiner(s): McKie, Gina
• Application Number:
  US14/188,559
• Publication Number:
  US 20140273906A1
• Time in Patent Office: 1,436 Days
• CPC Class Codes: H04L 1/20 using signal quality detector

Abstract

A method of operation of a wireless communication system includes: filtering a composite input from a radio frequency signal; developing a raw digital stream by applying an analog correction to the composite input; sampling an extracted signal, from the raw digital stream, by a primary analog-to-digital converter; and monitoring, by a correction control block, the extracted signal including adjusting the analog correction by a digital control from the correction control block.

Claims

1. A method of operation of a wireless communication system comprising:

filtering a composite input from a radio frequency signal;

developing a raw stream based on applying an analog correction to the composite input including removing an interference image from the composite input by an analog cancellation amplifier;

developing an extracted signal based on sampling the raw stream with a primary analog-to-digital converter;

generating a digital control based on monitoring the extracted signal with a correction control block; and

adjusting the analog correction and a digital residue, at the output of the primary analog-to-digital converter, based on the digital control generated using the extracted signal and fed back from the correction control block.

2. The method as claimed in claim 1 further comprising forming a digital correction signal, by an auxiliary analog-to-digital converter, monitored by the correction control block for determining the digital control.

3. The method as claimed in claim 1 further comprising generating an interference image from the composite input including correcting the raw stream.

4. The method as claimed in claim 1 further comprising modifying, through a residue cancellation adder, the extracted signal by activating a digital correction amplifier.

5. The method as claimed in claim 1 further comprising adjusting, with an image formation amplifier, the composite input through an analog cancellation adder.

6. A method of operation of a wireless communication system comprising:

receiving a radio frequency signal by a low-intermediate frequency receiver including;

filtering a composite input from the radio frequency signal,

developing a raw stream based on applying an analog correction to the composite input including removing an interference image from the composite input by an analog cancellation amplifier,

developing an extracted signal based on sampling the raw stream with a primary analog-to-digital converter,

generating a digital control based on monitoring the extracted signal with a correction control block, and

adjusting the analog correction and a digital residue, at the output of the primary analog-to-digital converter, based on the digital control generated using the extracted signal and fed back from the correction control block; and

transferring a signal of interest from the low-intermediate frequency receiver to a first control unit wherein the first control unit prepares the signal of interest for displaying on a display device.

7. The method as claimed in claim 6 further comprising forming a digital correction signal, by an auxiliary analog-to-digital converter, monitored by the correction control block for determining the digital control including cancelling the digital residue in the extracted signal through a digital correction amplifier.

8. The method as claimed in claim 6 further comprising generating an interference image from the composite input including correcting the raw stream by applying an analog cancellation through an image formation amplifier coupled to the interference image.

9. The method as claimed in claim 6 further comprising modifying, through a residue cancellation adder, the extracted signal including activating a digital correction amplifier by manipulating a digital control from the correction control block for adjusting the digital correction amplifier.

10. The method as claimed in claim 6 further comprising adjusting, by an image formation amplifier, the composite input through an analog cancellation adder for creating the raw stream by further modifying the composite input through an adder.

11. A wireless communication system comprising:

an antenna configured to receive a received signal;

a quadrature mixer, coupled to the antenna, configured to generate a baseband output signal and an interference baseband signal;

an adder, coupled to the quadrature mixer, configured to develop a raw stream based on combining the baseband output with an analog cancellation associated with an interference image and from an analog cancellation amplifier;

a primary analog-to-digital converter, coupled to the adder, configured to develop an extracted signal based on sampling the raw stream; and

a digital residue adder, coupled to the primary analog-to-digital converter, configured to generate a digital control based on the extracted signal, the digital control fed back to adjust the analog cancellation amplifier and a digital correction amplifier, configured to produce a digital residue, coupled to the output of the primary analog-to-digital converter.

12. The system as claimed in claim 11 further comprising an auxiliary analog-to-digital converter, coupled to the digital residue adder, configured to generate a digital residue.

13. The system as claimed in claim 11 further comprising a scaling amplifier, coupled to the quadrature mixer, configured to generate the digital residue from the received signal.

14. The system as claimed in claim 11 further comprising a residue cancellation adder, coupled to the digital residue adder, configured to modify the extracted signal by the digital correction amplifier.

15. The system as claimed in claim 11 further comprising an amplifier, coupled to the adder, configured to modify the raw stream.

16. The system as claimed in claim 11 further comprising a first control unit, coupled to the digital residue adder, the first control unit configured to display a signal of interest on a display device.

17. The system as claimed in claim 16 further comprising an auxiliary analog-to-digital converter, coupled to the digital residue adder, configured to generate a digital correction signal, the auxiliary analog-to-digital converter coupled to the digital correction amplifier configured to cancel the digital residue in the extracted signal.

18. The system as claimed in claim 16 further comprising an analog cancellation adder, coupled to the quadrature mixer, configured to generate the digital residue from the received signal includes the analog cancellation adder coupled to a scaling amplifier and an amplifier.

19. The system as claimed in claim 16 further comprising a residue cancellation adder, coupled to the digital correction amplifier, configured to modify the extracted signal includes a cancellation control manipulated by a correction accumulator to adjust the digital correction amplifier.

20. The system as claimed in claim 16 wherein the adder, coupled to the quadrature mixer, configured to modify the raw stream, includes an amplifier and the scaling amplifier between the quadrature mixer and the adder.