The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 27, 2018
Filed:
Mar. 07, 2016
Nec Corporation, Tokyo, JP;
Shinichi Hori, Tokyo, JP;
Tomoyuki Yamase, Tokyo, JP;
NEC CORPORATION, Minato-ku, Tokyo, JP;
Abstract
Provided are a wireless access system provided with a remote unit capable of handling a high-frequency region without being made complicated, and a control method for the same. A wireless access system according to the present invention is provided with: a center unit (); and a remote unit () that converts a baseband signal generated by the center unit () into a high-frequency signal and emits the high-frequency signal from an antenna (). The center unit () includes a 1-bit modulator () that converts the baseband signal into a 1-bit signal on the basis of a generated clock signal and outputs the 1-bit signal. The remote unit () includes: a local generation unit () that extracts the clock signal from the 1-bit signal output from the center unit (), and generates a local signal using the extracted clock signal as a reference signal; a filter () that extracts a desired band component from the 1-bit signal; and an up-converter () that converts, using the local signal, an output signal of the filter into a high-frequency signal.