Inter-band CA digital transmitter with multi-stage out-of-band noise canceller
US9985667B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2017 |
| Grant date | May 29, 2018 |
| Priority date | — |
| Expiry date | Apr 24, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W84/042
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A radio frequency transmitter for wireless communication includes a plurality of input ports to receive a plurality of sequences of baseband symbols to be transmitted on a plurality of disjoint frequency bands, a power encoder to modulate and encode the plurality of sequences of baseband symbols to produce an encoded multi-band signal including the plurality of disjoint frequency bands carrying the plurality of sequences of baseband symbols, a first power amplifier for amplifying the encoded multi-band signal to produce an amplified encoded multi-band signal, a first noise canceller to generate a first noise mitigation signal from the encoded multi-band signal and the plurality of sequences of baseband symbols, a first power combiner to combine the amplified encoded multi-band signal and the first noise mitigation signal to produce an RF multi-band signal, and an antenna for transmitting the RF multi-band signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.