Engage Communication has launched IPTube G4 Abis, which it claims to enhance the cellular backhaul efficiency.

The company claims that the IPTube G4 Abis optimises cell site 3GPP Abis traffic prior to transmission over backhaul links, reducing bandwidth consumed by existing traffic while creating more backhaul capacity without additional network investment.

According to Engage, the IPTube G4 Abis provides optimisation of 3GPP Abis traffic for GSM Cellular Base Station backhaul. Its Field Programmable Gate Array based Abis engine provides for the simultaneous duplex optimisation of 512 TRAU sub channels. It transports the basestation traffic over a WAN Circuit or as TDM over IP packets through wired or wireless ethernet connections and the unit comes with one to four T1 or E1 interfaces configurable in full or fractional mode and a four port ethernet switch supporting data and TDM over IP networking.

The company said that the IPTube G4 Abis optimiser has two modes of operation, fixed and dynamic bandwidth. The fixed bandwidth mode limits the amount of bandwidth to a specific number of 16 kilobit sub channels optimising the Abis traffic into the available WAN T1/E1 timeslots or IP packet bandwidth. The Dynamic Abis optimisation mode limits the aggregate IP packet bandwidth.

The IPTube G4 Abis provides backhaul interconnect from BTS to BCS, including, satellite backhaul of mobile traffic; cellular station backhaul over ethernet/IP/MPLS; mobile base station backhaul over wireless; and increases TDM backhaul capacity, the company said.

With up to 3:1 bandwidth optimisation, two or three T1/E1 circuits can be combined onto a single TDM backhaul link permitting increased network capacity. The IPTube G4 Abis supports IP Tube features such as assured delivery protocol, IP/MPLS, SNMP management, secure socket shell, dynamic DNS and dynamic host configuration, Engage added.