User's Manual

02030311-03 Airspan Networks Ltd. 1-1
Introduction
IntroductionIntroduction
Introduction
Airspan’s AS WipLL system (hereafter referred to as WipLL) is a low-cost, high-
performance point-to-multipoint IP-based Broadband Fixed Wireless (BFW) Access
solution. WipLL provides wireless local-loop (last-mile) connectivity designed to
deliver high-speed data, Voice over IP (VoIP), and multimedia services to
residential, SOHO (small office/home office), and SME (small medium enterprise).
WipLL offers service providers an integrated access solution, providing quick-to-
market deployment and low-market entry cost for broadband services.
WipLL provides connectivity speeds of up to 4 Mbps in the licensed 2.8 GHz, 3.x
GHz, and Multichannel Multipoint Distribution Services (MMDS), and unlicensed
2.4 GHz (ISM) and 5.8 GHz radio frequency bands. In the 5.8 GHz band, the
WipLL system supports 3 Mbps and 4 Mbps transmission speeds. For 1, 2, and 3
Mbps, WipLL implements the Frequency Hopping spread spectrum mode; for 4
Mbps, WipLL implements the Hybrid spread spectrum mode. Each WipLL base
station, at maximum configuration, supports up to 3,024 subscribers.
WipLL enables interconnection with the Public Switched Telephone Network
(PSTN) by the use of an IP-to-PSTN gateway. WipLL provides VoIP by its
interoperability with a wide range of third-party products such as residential
gateways (RGW), access gateways, gatekeepers, and softswitches.
WipLL utilizes air protocol technology for wireless packet switching using
Frequency Hopping technology. In addition, WipLL's in-house Preemptive Polling
Multiple Access (PPMA) air MAC protocol technology, which recognizes
transmission type and assigns bandwidth, is highly efficient—80% throughput (e.g.,
80% of 4 Mbps = 3.2 Mbps net capacity)—allowing multiple concurrent subscribers
to utilize bandwidth.
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