SIGNAL PROCESSING DEVICE FOR DISTRIBUTED ANTENNA SYSTEM

• US 20170111957A1
• Filed: 12/30/2016
• Published: 04/20/2017
• Est. Priority Date: 05/22/2015
• Status: Active Grant

• Current Assignee: SOLiD, Inc.
• Original Assignee: SOLiD, Inc.
• Inventors: LEE, Hwansun
• Granted Patent: US 9,826,573 B2
• Time in Patent Office: Days
• CPC Class Codes: H04B 1/00 Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
• CPC Class Codes: H04B 1/3888 Arrangements for carrying or protecting transceivers
• CPC Class Codes: H04B 1/40 Circuits
• CPC Class Codes: H04W 88/085 Access point devices with remote components

Abstract

A signal processing device according to an exemplary embodiment of the inventive concept can integrate a power amplifier, a duplexer, and a linearizer as a module to improve the convenience of management and to improve flexibility and extensibility so as to be transformable corresponding to a change in system development concept.

Claims

1. A signal processing device comprising:

a base module including a power amplifier;

a first module coupled to the base module and selectively including an RF processing unit for processing an RF signal;

a circuit substrate detachably coupled to the first module and including a linearizer correcting a distortion signal; and

a second module covering the first module and including a duplexer separating a transmitted or received RF signal.

2. The signal processing device of claim 1, wherein an accommodating groove accommodating the circuit substrate is formed on one surface of the first module.

3. The signal processing device of claim 1, wherein a first connector transferring a signal processed and introduced by the RF processing unit to the linearizer, and a second connector transferring the signal processed through the linearizer to the power amplifier are provided on one surface of the first module,.

4. The signal processing device of claim 1, wherein the linearizer includes a pre-distortion device.

5. The signal processing device of claim 1, further comprising:

a sensing unit provided in the first module to sense whether the circuit substrate is mounted or detached.

6. The signal processing device of claim 5, further comprising:

a switch unit switching the signal processed by the RF processing unit to be processed by the linearizer and thereafter, transferred to the power amplifier at the time of mounting the circuit substrate according to a detection of whether the circuit substrate is mounted or detached by the sensing unit.

7. The signal processing device of claim 5, wherein the switch unit switches the signal introduced into the signal processing device so as to be bypassed to the power amplifier at the time of detaching the circuit substrate according to a detection of whether the circuit substrate is mounted or detached by the sensing unit.