14169000-IG, Edition 11.0
January 2018, Original document
30
Deployment of Base Stations
When the base station radios are synchronized via radio, the base stations that synchronize to each
other must be within radio coverage of each other. This is not required when LAN based syn-
chronization is used. Here, the deployment requirements are the same as for the digital DECT base
stations and the coverage overlap is only required for the handsets to be able to perform handovers.
The figure below illustrates the difference in coverage requirements for radio and LAN based syn-
chronization.
Radio synchronization LAN synchronization
It should be noted that depending on the deployment - Synchronization via LAN and radio can be
combined in the same DECT installation. Even when a base station is configured to synchronize via
LAN, it transmits the signal required for synchronization via radio. Therefore, base stations syn-
chronizing via radio can retrieve their synchronization signal from a base station synchronizing via
LAN. The other way around is not possible.
Network Requirements
For PTPv2 to work the requirements for the network are quite strict with regard to:
l multicast
l timing
Note:
LAN synchronization only works properly if multicast and timing requirements are met.
An assessment of the corporate LAN network MUST be done to evaluate if the LAN net-
work is suitable enough for LAN based synchronization.
Spectralink IP-DECT Server 400/6500 and DECT Server 2500/8000 Synchronization and Deployment Guide
To Next Page
Loading...
