HiperMAX is the ultimate mobile WiMAX base station designed for high-density deployment situations. HiperMAX has been architected to provide a highly scalable, fully redundant base station product that will deliver the optimum performance for years to come.

 

HiperMAX is fully compatible with the Mobile WiMAX Network Reference Model (NRM). HiperMAX is part of the Access Service Network (ASN). HiperMAX supports the reference point (R6) between the base station and the ASN Gateway as well as the reference point (R8) between base stations. HiperMAX interworks with Airspan's ASN Gateway called ControlMAX and with other third party ASN gateways.

 

HiperMAX represents the state of the art, next generation base station design and includes:

 

• Fully upgradeable, software defined, PHY and MAC layers enabling simultaneous support for both Mobile WiMAX (SOFDMA) and Fixed WiMAX (OFDM)
• Fully digital, OBSAI based, fibre optic interfaces between indoor and outdoor equipment, which can operate at up to 3km.
• Multi-channel transmit and receive diversity
• 2x2 and 4x2 MIMO configurations
• 4 or 8 channel Smart Antenna Systems (SAS)
• Support for FDD and TDD profiles

 

HiperMAX is designed to deliver the best link budget with the highest capacity and net throughput; all essential qualities for macro-cell deployments used in typical wireless roll out.

 

HiperMAX implements an all-outdoor radio with up to eight-element antenna array system.

 

All HiperMAX base stations support SAS and multi-channel Transmit and Receive diversity and are platform ready for SDMA, which uses the antenna array to enhance capacity and improve frequency re-use.

 

HiperMAX base stations cooperate with the IMS which is part of the Connectivity Service network (CSN) to deliver voice and other multimedia services and can also be configured to support VoIP applications, using a standard media gateway to the PSTN.

 

HiperMAX Operation

 

The HiperMAX base station consists of an indoor section, suitable for location within a protected environment, and an outdoor RF section. The indoor baseband electronic boards, referred to as blades, are housed in 5 and 14-slot ATCA chassis which are NEBS compliant. The outdoor enclosure contains the RF subsystem components and smart antennas. The connection between the indoor and outdoor equipment is achieved through a fibre optic cable and separate power feed.

 

HiperMAX supports different antenna options including:

 

• MIMO Matrix A
• Tx and Rx Diversity
• 2x2 MIMO Matrix B
• 4x2 MIMO Matrix B MIMO
• 4 or 8 element SAS

 

The antenna system of choice is connected to the outdoor RF unit and in turn to each baseband blade.

 

HiperMAX can support up to 12 baseband blades per 14-slot shelf, with a single fibre optic cable to each RF unit. Baseband blades can be configured to support 6 active channels with full redundancy or 12 active channels without redundancy.

 

The ATCA shelf also houses the shelf controller and power supplies. In addition to the ATCA shelf, the HiperMAX rack houses the Ethernet switch and the GPS synchronisation unit. The Ethernet switch aggregates the individual traffic streams onto a Gigabit Ethernet stream for backhaul purposes. For TDD and smart antenna operation the multiple sectors are locked to a GPS timing source. The ATCA shelf manager provides a platform management layer that holds an inventory of field replaceable units in the system and monitors their basic health.

 

Fibre optic modules operating at speeds of up to 3.1GBit/s and are connected to fibre optic cables capable of carrying up to 10Gb/s for future expansion, if required. The Smart Antenna System (SAS) comprises an environmentally sealed enclosure, designed to be installed outdoors on a mast or other support suitable for propagating a radio signal. The outdoor equipment consists of a multi-channel RF transceiver and the Tx and Rx antennas.

 

HiperMAX fully supports the extensive QoS characteristics of the IEEE 802.16 radio interface, including full support for UGS, rtPS, ErtPS, nrtPS and BE service classes. In addition, we have incorporated specific additional radio resource management features that allow applications like VoIP to be robustly delivered by implementing Admission Control on a per call basis.

 

HiperMAX is managed by Netspan, the SNMP based central management platform.

 

 

Network Architecture