发明名称 |
DIGITAL SUPPRESSION OF TRANSMITTER INTERMODULATION IN RECEIVER |
摘要 |
Systems and methods for suppressing transmitter noise in a receive band of a co-located receiver that are suitable for wideband applications are disclosed. In one embodiment, a transmitter is configured to upconvert and amplify a digital transmit signal to provide an analog radio frequency transmit signal at an output of the transmitter that includes a desired signal in a transmit band of the transmitter and transmitter noise in a receive band of a main receiver. The main receiver is configured to amplify, downconvert, and digitize an analog radio frequency receive signal to provide a digital receive signal. The digital feedforward transmit noise cancellation subsystem is configured to process the digital transmit signal to generate a digital transmitter noise cancellation signal that is representative of the transmitter noise in the receive band and is subtracted from the digital receive signal to thereby provide a compensated digital receive signal. |
申请公布号 |
US2016308562(A1) |
申请公布日期 |
2016.10.20 |
申请号 |
US201615191793 |
申请日期 |
2016.06.24 |
申请人 |
Telefonaktiebolaget LM Ericsson (publ) |
发明人 |
Wyville Mark;Thorebäck Lars Johan;Dalipi Spendim |
分类号 |
H04B1/10;H04B1/62;H04B1/525;H04L12/26 |
主分类号 |
H04B1/10 |
代理机构 |
|
代理人 |
|
主权项 |
1. A system comprising:
a digital feedforward transmit noise cancellation subsystem configured to:
receive a copy of a digital transmit signal input to a transmitter; andgenerate a digital transmitter noise cancellation signal representative of transmitter noise in a receive band of a main receiver at an output of the main receiver based on the digital transmit signal input to a transmitter. |
地址 |
Stockholm SE |