Digital radio frequency (RF) receiver

Patent metadata

Field	Value
Publication number	US-9294135-B2
Application number	US-201213609638-A
Country	US
Kind code	B2
Filing date	Sep 11, 2012
Priority date	Dec 14, 2011
Publication date	Mar 22, 2016
Grant date	Mar 22, 2016

Abstract

A digital RF receiver does not use a separate receiver according to a mode and a band for multi-mode reception, MIMO reception, and bandwidth extension reception, and changes only setting variables in a single receiver structure so as to implement multi-mode reception, MIMO reception, bandwidth extension reception, and/or simultaneous multi-mode operation, such that complexity of the receiver, development cost, and power consumption can be reduced.

First claim

What is claimed is:

1. A digital RF receiver comprising:
an antenna unit configured to output a signal received at an antenna;
a radio frequency (RF) unit configured to convert the received signal into a digital reception signal, and output the digital reception signal; and
a digital front end (DFE) unit configured to perform a decimation process for the digital reception signal and remove an interference signal component of a contiguous band,
wherein variables of an input sampling rate, a carrier frequency and a bandwidth are established in the RF unit, and
wherein variables of an output sampling rate, a bandwidth, an inter frequency (IF), an integer decimation rate and a rational decimation rate are established in the DFE unit.

2. The digital RF receiver of claim 1 , wherein m digital RF receivers (where m is a natural number), each of which includes the antenna unit, the RF unit, and the DFE unit, are arranged in parallel.

3. The digital RF receiver of claim 1 , wherein the DFE unit comprises a DC offset compensator configured to remove a DC component from the received signal.

4. The digital RF receiver of claim 1 , wherein the DFE unit comprises an IQ mismatch compensator configured to remove image components from the received signal.

5. A receiver set comprising:
a plurality of digital RF receivers,
wherein each of the plurality of digital RF receivers includes:
an antenna unit configured to output a signal received at an antenna;
a radio frequency (RF) unit configured to convert the received signal into a digital reception signal, and output the digital reception signal; and
a digital front end (DFE) unit configured to perform a decimation process for the digital reception signal and remove an interference signal component of a contiguous band,
wherein variables of an input sampling rate, a carrier frequency and a bandwidth are established in the RF unit,
wherein variables of an output sampling rate, a bandwidth, an inter frequency (IF), an integer decimation rate and a rational decimation rate are established in the DFE unit.

6. The receiver set of claim 5 , wherein m digital RF receivers (where m is a natural number), each of which includes the antenna unit, the RF unit, and the DFE unit, are arranged in parallel.

7. The receiver set of claim 6 , wherein n receiver sets are provided, each of the n receiver sets including the m digital RF receivers in such a manner that m antenna units are available.

Assignees

• Eo Ik Soo
• Kim Sang-Kyun
• Park Mun Yang
• Han Seon-Ho
• Yu Hyun Kyu
• Korea Electronics Telecomm

Inventors

• Eo Ik Soo
• Kim Sang-Kyun
• Park Mun Yang
• Han Seon-Ho
• Yu Hyun Kyu

Classifications

• H04B1/0021 Primary

  Decimation, i.e. data rate reduction techniques (H04B1/0025 takes precedence) · CPC title