KDDI R&D Laboratories (KDDI R&D), Furukawa Electric and Teknovus announced an end-to-end fiber-based backhaul transport solution that eliminates the need for GPS receivers at each base station throughout a cellular network.  Accurate clock synchronization is required in cellular networks to prevent call drops as subscribers move from cell-to-cell, to ensure high-quality voice communications and to support accurate billing. 
The solution integrates one GPS receiver with the OLT (Optical Line Terminal), distributing carrier-grade clock signaling throughout the EPON network to every connected base station.
This could help service providers eliminate costly GPS receivers, cabling and monthly TDM-circuit fees. In addition, this solution enables base station installations in areas with limited GPS reception, such as those shadowed by adjacent buildings or other physical obstructions.
Key components of this end-to-end clock synchronization include:
The solution integrates one GPS receiver with the OLT (Optical Line Terminal), distributing carrier-grade clock signaling throughout the EPON network to every connected base station.
This could help service providers eliminate costly GPS receivers, cabling and monthly TDM-circuit fees. In addition, this solution enables base station installations in areas with limited GPS reception, such as those shadowed by adjacent buildings or other physical obstructions.
Key components of this end-to-end clock synchronization include:
- Teknovus Turbo-EPON chips and embedded software.
- Furukawa's integrated GPS receiver for the OLT, which multiplexes the clock signals into EPON frames using the Teknovus OLT chip. For base stations, Furukawa provides an SFP-ONU (Small Form Factor Pluggable-Optical Network Unit), the FITELwave AG9, based on the Teknovus ONU chip, which de-multiplexes the clock signals with high fidelity for use by wireless base stations.
- KDDI R&D's timing solutions for fiber-based networks, which eliminate the need for costly GPS transceivers at every base station.
 





 The contract will see a network expansion in the central and northern regions of Peninsular Malaysia, two of the country's most densely populated regions. Specifically, TM is deploying Alcatel-Lucent's IP/MPLS portfolio which includes its 7750 Service Router, 7450 Ethernet Service Switch, 7250 Service Access Switch and 5620 Service Aware Manager.  This enables TM to offer highly reliable Virtual Leased Line (VLL) and Virtual Private LAN services (VPLS) to its business customers. The network will also form the platform for aggregating TM's next-generation (NGN) access gateways and IP DSLAM for future services, including triple play.  Local partner Airstar (M) Sdn Bhd will provide engineering services and L1/L2 maintenance. The contract follows a three-year deal secured by Alcatel-Lucent and Airstar in 2006. Financial terms were not disclosed.
The contract will see a network expansion in the central and northern regions of Peninsular Malaysia, two of the country's most densely populated regions. Specifically, TM is deploying Alcatel-Lucent's IP/MPLS portfolio which includes its 7750 Service Router, 7450 Ethernet Service Switch, 7250 Service Access Switch and 5620 Service Aware Manager.  This enables TM to offer highly reliable Virtual Leased Line (VLL) and Virtual Private LAN services (VPLS) to its business customers. The network will also form the platform for aggregating TM's next-generation (NGN) access gateways and IP DSLAM for future services, including triple play.  Local partner Airstar (M) Sdn Bhd will provide engineering services and L1/L2 maintenance. The contract follows a three-year deal secured by Alcatel-Lucent and Airstar in 2006. Financial terms were not disclosed. 







 
 
 
 
 
