Method for propagation delay control
US6205157A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 1997 |
| Grant date | Mar 20, 2001 |
| Priority date | — |
| Expiry date | Jun 12, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L7/043
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for maintaining synchronization between a base transceiver station (BTS) and an interworking function (IWF) within a cellular communications network is disclosed. The method utilizes a synchronization procedure between the IWF and the BTS that makes the IWF aware of propagation delays between the IWF and BTS. The IWF utilizes this information to adapt to the delays such that the correct sequence is unpacked uplink when obtained from the base transceiver station. The IWF also uses synchronization data to control transmissions from the IWF to the BTS such that frame numbers and timeslots are received at the BTS in the correct sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.