Synchronization of wireless base stations by a service circuit in a telecommunication switching system
US6167063A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 8, 1995 |
| Grant date | Dec 26, 2000 |
| Priority date | — |
| Expiry date | Dec 8, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/13396
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Synchronizing wireless base stations by reception of a synchronization signal that is transmitted in an unused B channel of an ISDN link interconnecting a switching network and the base stations. The synchronization signals are generated by the tone circuit of the switching network which advantageously is a digital signalling processor (DSP). Each base station is interconnected to the switching network via two basic rate interface (BRI) links. Each base station can handle a maximum of three wireless handsets thus leaving one of the four B channels present in the two BRI links unused. It is this unused link that is utilized to transmit the synchronization signals from the switching network to the base stations. Furthermore, the switching network is configured in such a manner that all base stations receive the synchronization signals at the same time over the unused B channels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.