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:
Mar. 05, 2024
Filed:
Nov. 27, 2019
Comba Network Systems Company Limited, Guangzhou, CN;
COMBA NETWORK SYSTEMS COMPANY LIMITED, Guangzhou Science, CN;
Abstract
The present application relates to a distributed antenna system, a method and an apparatus. The distributed antenna system comprises a digital-analog expansion unit and a remote cascade chain, the remote cascade chain comprising multiple remote units cascadingly connected by means of radio frequency cable, and a first remote unit of the remote cascade chain being connected to the digital-analog expansion unit by means of radio frequency cable. The digital-analog expansion unit is used to perform a baseband processing operation on a received external signal, and to perform interconversion of an analog RF signal and a digital RF signal. On this basis, the digital-analog expansion unit and the remote units use a cable connection-based daisy chain topology, which can both increase transmission bandwidth and effectively decrease transmission link costs; in addition, baseband processing being executed by the digital-analog expansion unit, and a remote unit not requiring baseband processing equipment, can effectively lower system component costs and operating power consumption. The present system is characterized by multi-mode, multi-band support and cell splitting, is easy to expand, and has low construction difficulty.