Distributed telecommunications system
US5761619A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1995 |
| Grant date | Jun 2, 1998 |
| Priority date | — |
| Expiry date | Mar 23, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/085
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A cellular telecommunications system has a plurality of nodes, each for performing at least one of a number of cellular telecommunications system functions, including base station, speech coder, control processing, signal processing, local handoff, location register, and network interface functions. The nodes are interconnected by a network preferably comprising an optical fiber cable. In one aspect of the invention, the protocol that is used on the network is a high speed synchronous protocol, such as the DTM protocol. A first node in the system may be an antenna; an RF component coupled to the antenna; an analog-to-digital converter having an analog port and a digital port, the analog port being coupled to the RF component; and an optical fiber modem for connecting the digital port of the analog-to-digital converter to the network means. A second node in the system may be for performing base station controller functions, wherein the first and second nodes, together, operate as a distributed base station. In another aspect of the invention, some of the nodes may be transceivers, while other nodes include antennas coupled to frequency band filters. The network operates to permit an…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.