System for coordination of TDD transmission bursts within and between cells in a wireless access system and method of operation
US6804527B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2001 |
| Grant date | Oct 12, 2004 |
| Priority date | — |
| Expiry date | Mar 8, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/08
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
There is disclosed, for use in a first radio frequency (RF) modem shelf associated with a first one of a plurality of base stations in a fixed wireless access network, a timing distribution apparatus for synchronizing the operations of a plurality of RF modems in the first RF modem shelf. The timing distribution apparatus comprises: a) a primary master clock source for generating an internal master clock signal and an internal master framing signal; b) a plurality of interface control processors capable of synchronizing a downlink transmission of one of the plurality of RF modems; c) a synchronization bus; d) an external interface input port capable of receiving an external master synchronization signal from a second RE modem shelf; and e) an external interface output port for transmitting at least one of the internal master clock signal and the internal master framing signal to the second RF modem shelf.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.