User's Manual

001-2019-500 Rev 0 Paragon4 – UHF, 700 & 800MHz User Manual

Figure 63 - Datalink Ethernet Statistics

RF interface is further subdivided into two sub-layers: OIP sub-layer and Airlink sub-layer. OIP (Opti-

mized IP) sub-layer is concerned with compression, optimization, TCP proxy control, and IP roaming.

Airlink sub-layer is where Dataradio’s Enhanced Dynamic Bandwidth Allocation (E-DBA) Airlink proto-

col resides.

RF interface statistics are illustrated in Figure 64. Each E-DBA cycle consists of a fixed number of con-

trol packets (e.g.: Requests, Acknowledgements, etc...) and a dynamically allocated number of data pack-

ets. This is why both Data and Control packets count appear at the Air link sub-layer.

RF interface statistics also include error correction statistics for all incoming packets. The corrections are

accomplished with a forward error correction (FEC) module. The advantage of forward error correction is

that retransmission of data can often be avoided.

Figure 64 - Datalink RF Statistics

DATALINK LAYER

PHYSICAL LAYER

ETH1

RF-AIRLINK

RF-OIP

ETH PHY

EDBA PHY

FEC

Tx Pkts

Rx Pkts

ETH2

ETH PHY

Tx Pkts

Rx Pkts

Preliminary