The radio transmission and cellular backhaul networks are expanding capacity and capabilities in order to cost effectively support the delivery of new, bandwidth hungry, data based services over a reliable service provider infrastructure. 

As an OEM equipment supplier you need to provide flexbility to your carrier customer with a simple solution that has network agnostic capabilities that support the choice of carrier grade Ethernet, DS1/E1, DS3/E3 backhauled over SONET/SDH, PDH or DWDM network topologies.

RadioNode, PSF15, CopperNode, CopperNodeL and CopperNodeHE bring all of the well-known benefits of SONET/SDH and PDH available in wireline applications today to radio networks. Time-tested carrier-grade features such as reliability, efficiency, protection, performance monitoring, and topology flexibility make SONET/SDH and PDH the transport protocols of choice for wireline and radio applications alike. PDH and SONET/SDH capable radio transmission products allow service providers to leverage their vast knowledge and experience with their wireline transport networks in offering their services over radio links. These products also allow a mix of radio and wireline links to be used together to form a SONET/SDH ring network or PDH network. For example, in a SONET/SDH network application, LCAS can be used to split Ethernet traffic across two unprotected radio links allowing 311 Mbps bandwidth to be achieved while still avoiding loss of service in the event of single link failures

While most radio products today are focused on transporting traditional TDM signals (e.g. DS1/E1), there is a clear need to evolve these products to include Ethernet transport. Galazar's semiconductor devices are highly integrated ASSPs using next-gen SONET/SDH and PDH features such as GFP (Generic Framing Procedure), VCAT (Virtual Concatenation) and LCAS (Link Capacity Adjustment Scheme) to enable efficient simultaneous multiplexing of Ethernet/Fast Ethernet, Gigabit Ethernet, DS1/E1 and DS3/E3 signals. Telecom bus and SPI-3 client interfaces provide complete flexibility for addition of other types of TDM or packet traffic.

Cellular service providers are upgrading their radio access networks to provide more IP/packet services for their customers. As bandwidth between cell towers and RNC/BSC is increased to enable these packet services two major changes to the radio access network are occuring. The first is the installation of fiber to replace current copper facilities. The second is the use of Ethernet instead of ATM as the layer 2 protocol of choice

Fiber has multiple advantages over copper facilities in this application including increased bandwidth and increased immunity to lightning strikes. The transition from ATM to Ethernet is part of a network wide shift toward Ethernet based infrastructure and like any transition will result in both technologies co-existing for some time. Therefore, the resulting upgraded backhaul network needs to be equally capable of transporting DS1/E1 and Ethernet. The ideal protocola for multiplexing these signals onto a common signal in a carrier-grade environment are PDH or SONET/SDH. For example, support for ring topologies allows efficient connection of cell towers to share overall bandwidth of the SONET/SDH network and reduced number of ports at the RNC/BSC when aggregating traffic from multiple cell towers

Galazar's Carrier Grade Ethernet Backhaul with LCAS, VCAT and GFP

Galazar's radio transmission and cellular backhaul solutions support the PDH network connection heritage while offering the agility of next generation carrier grade Ethernet over LCAS, VCAT and GFP. Galazar's Carrier Grade Ethernet with LCAS, VCAT and GFP enables the carrier to incrementally provision bandwidth to basestations transparently, without truck rolls, thus reducing CapEx and OpEx. Galazar's LCAS, GFP and VCAT technologies also allow the carrier to provison prioritized quality of service channels and protection mechanisms to ensure mission critical and time dependent traffic is delivered first.

If you are building a radio transmission and cellular backhaul solution, you need well designed Appplication Specific Standard Products (ASSP) for SONET/SDH and PDH networks, software and documentation, implementation of advanced, new carrier grade services can radically increase development time. Galazar’s well-designed and documented ASSPs, hardware and software have been specifically packaged to minimize this development time.

Galazar's Software Architecture and Solutions gets you to market faster

Galazar's production quality, telecom-grade software offerings greatly simplify application development and integration.  From the comprehensive device management suite, DeviceManager™, to the near turn-key platform management solution, ServiceManager with ServiceManager Modules™, Galazar has a software package that meets the needs of the OEM equipment developer.

The OS independent DeviceManager software contains functions required for even the most demanding application, including warm start, integrated tools, interrupt handling, LCAS management, state and resource pool management. These are required in order to eliminate the need for system developers to understand the low-level details of the ASSP design. User friendly documentation makes our software easy to integrate into your system.

While the DeviceManager software is designed to be integrated into the customer software infrastructure that may already exist, while the ServiceManager™ and ServiceManager Modules solutions are optimized for use in new platforms that can not leverage software developed on prior generation equipment.  These highly developed solutions allow customers to benefit from Galazar’s extensive experience in SONET/SDH equipment, PDH equipment and related software development to rapidly deliver a flexible, robust, standards conformant platform. Galazar's reference platform is used by our verification and support team to develop and test our software in a real world test environment. To assist your hardware design, we provide hardware support, design reviews, reference platform schematics, and a list of complimentary components known to be compatible and easily supported by our software.

Great software and great documentation enable great support for your go to market development efforts.

Galazar has a range of products ideally suited to these radio transmission and cellular backhaul solution applications.  Select one of the applications below to see more details.

Wireless and Cellular Backhaul over SONET/SDH Sample Block Diagrams

Wireless and Cellular Backhaul over PDH Sample Block Diagrams

6xDS1/E1, 3xE/FE, 1xGigE ⇔ PDH (CopperNode)
E/FE ⇔ 8xDS1/E1 (CopperNodeL)
E/FE ⇔ DS3/E3 (CopperNode)