Airspan AS3010, Руководство по вводу в эксплуатацию

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C o nf igu ri ng a Poi nt - to - Poi nt R ad io Lin k C o m m i ssi o n i n g M an u al
9.1. Overview
ASWipLL’s Point-to-Point Radio ( PPR ) device is implemented in point-to-point
radio links operating in the 2.4 GHz, 3.4 GHz to 3.8 GHz, and 5.8 GHz bands. The
PPR provides a secure and reliable point-to-point wireless link with a single remote
ASWipLL device (i.e. SPR).
PPR provides real-time adaptive modulation (2-, 4-, 8-level FSK) and Auto
Retransmission Request (ARQ): features that offer high quality connectivity whilst
maximizing spectrum utilization.
The PPR can deliver up to 4 Mbps using a 1.33 MHz channel, and is fully packet-
based. If more than 4 Mbps bandwidth is required between two end points, two or
more links can be installed in parallel. For two links, ASWipLL uses IP routing: one
link routes IP traffic in the uplink; and another link, routes IP traffic in the downlink.
A third link can be added to bridge mainly PPPoE traffic in uplink and downlink.
The PPR device is similar to the BSR in that it performs IP routing and PPPoE
bridging, transparent bridging, as well as all the other BSR software features. The
only difference between the PPR’s and BSR’s software features is that the PPR is
part of a point-to-point link, in other words, only a single SPR can be associated
with the PPR.
The PPR typically communicates with an SPR providing a high-antenna gain. The
PPR at the near end, and the SPR at the far end, both connect to the local network
through ASWipLL’s SDA devices.
9-2 Airspan Networks Inc. 01040311-07