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Systems and methods for frequency independent analog self-interference cancellation
US9036749B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9036749-B2 |
| Application number | US-201414456367-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 11, 2014 |
| Priority date | Aug 9, 2013 |
| Publication date | May 19, 2015 |
| Grant date | May 19, 2015 |
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Abstract
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A system and method for analog self-interference cancellation that includes receiving an RF transmit signal of a full-duplex radio; frequency downconverting the RF transmit signal to an IF transmit signal; transforming the IF transmit signal into an IF self-interference signal using an IF analog self-interference cancelling circuit; frequency upconverting the IF self-interference signal to an RF self-interference signal; and combining the RF self-interference signal with an RF receive signal of the full-duplex radio.
First claim
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We claim: 1. A system for analog self-interference cancellation comprising: a transmit coupler, communicatively coupled to an RF transmit signal of a full-duplex wireless communication system, that samples the RF transmit signal to create a sampled RF transmit signal having an RF carrier frequency; a frequency downconverter, comprising a mixer, a local oscillator, and an IF filter, wherein the frequency downconverter converts, by heterodyning, the sampled RF transmit signal to a…
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- What does patent US9036749B2 cover?
- A system and method for analog self-interference cancellation that includes receiving an RF transmit signal of a full-duplex radio; frequency downconverting the RF transmit signal to an IF transmit signal; transforming the IF transmit signal into an IF self-interference signal using an IF analog self-interference cancelling circuit; frequency upconverting the IF self-interference signal to an R…
- Who is the assignee on this patent?
- Kumu Networks Inc
- What technology area does this patent fall under?
- Primary CPC classification H04B1/12. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue May 19 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).