Satellite mobile backhaul started in remote rural areas in early 2002 with the uptake of 2G GSM voice traffic. Mobile technologies have evolved since then to 2.5G, and recent satellite mobile backhaul deployments have leveraged 3G. Two aspects must be taken into account when providing 3G over satellite. First, several types of 3G are actually deployed: From Release 99 based on ATM to Release 6 and beyond, the traffic flow and protocols vary. Different network components are involved in the data communication. Secondly, the nature of 3G traffic is very different from 2G: Data is often predominant and video might even occupy most of the bandwidth.
The satellite mobile backhaul solution, therefore, has to complement the relevant 3G architecture, protocols and traffic patterns in order to provide the best performance and savings.
We have extensive experience in deploying 2G and 3G satellite mobile backhaul solutions. Our suite of products for satellite mobile backhaul encompasses several breakthrough features that can be incorporated based on your project specificities.
Do you have a 2G network that you are transitioning to 2.5G or 3G?
Your network likely incorporates a mix of legacy TDM and new IP base stations. Our advanced technologies can provide you with methods to optimize your satellite mobile backhaul OPEX.
If you have our satellite modems deployed in your network, you have options to add optimization functionality to your existing solution. Our DoubleTalk® Carrier-in-Carrier® bandwidth compression allows full duplex satellite links to transmit concurrently in the same segment of transponder bandwidth. When combined with the advanced forward error correction and modulation techniques in our satellite modems, DoubleTalk Carrier-in-Carrier delivers improved satellite transponder utilization and unprecedented OPEX savings.
If the traffic is predominantly IP, the Packet Processor option in our satellite modems and in our FX product line will compress header and payload in the IP traffic, significantly optimizing the satellite bandwidth.
Another option is the Memotec RAN Optimization solution , which removes unnecessary information in the GSM Abis protocol, providing thereby 50% bandwidth savings. OPEX can be substantially reduced and our advanced bandwidth management capabilities prioritize traffic according to mobile operators’ preferences.
It is also important to note that as mobile operators upgrade to 3G/4G technologies and Ethernet packet backhaul, the timing information is no longer available within BTS/NodeB/eNodeB. Our CDM-625 is the first satellite modem to carry native support for IEEE 1588v2 PTP, providing unprecedented synchronization accuracy for satellite-based 2G and 3G mobile backhaul over IP. The CDM-625 also supports several other synchronization protocols and methods, as well as a wide range of data Interfaces.
Do you have an HSPA network?
Along with the afore mentioned options, our WAN optimization functionality improves access to applications by reducing the amount of data transferred on the link via various compression and caching schemes, as well as accelerating reliable protocols. The Traffic Shaping feature classifies and prioritizes traffic according to different criteria.
Are you looking into 4G LTE or Small Cells?
Our Advanced VSAT Solutions portfolio provides high-performance satellite-based communication solutions for a diverse range of applications, including satellite mobile backhaul with RAN/WAN optimization, IP trunking and backhaul. Incorporating advanced technologies developed by Comtech EF Data, AHA Products Group, Memotec and Stampede, the solutions provide unmatched performance, industry-leading bandwidth efficiencies and network optimization – while minimizing total cost of ownership. The Advanced VSAT provides a highly scalable and cost-effective solution to meet the needs of a diverse user community. A network can start with a few sites and expand to hundreds of sites. Small cells and 4G LTE satellite backhaul traffic gets processed with utmost efficiency; traffic is shaped according to the mobile operators’ preferences, providing an enhanced user experience and maximum customer satisfaction.