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System Description WipLL Radio Technology - Physical Layer

25030311-08 Airspan Networks Inc. 2-37

Mode Modulation Rate

(Mbps)

Range

(Km)

2 FSK 1.33 8

Table 2-18: WipLL range at FCC limits for 5.8 GHz

Mode Modulation Rate

(Mbps)

Range

(Km)

8 FSK 3 2

4 FSK 2 5

1 Msps

2 FSK 1 10

8 FSK 4 1

1.33 Msps

2 FSK 1.33 8

Note: Link budget is calculated for the uplink assuming free space

propagation standard integrated antenna and 10 dB fade margin.

As shown in the tables, the system range for the 1 Msps mode is approximately three

times higher than for the 1.33 Msps mode due to the 9 dB differences in Tx

(transmit) power.

2.6.6.2.2. Licensed Bands (3.5 GHz)

No distinction exists between the two modes in terms of system range.

2.6.6.3. Interference Rejection

Two types of interference should be considered:

 Intra-system interference: caused by multiple WipLL transmitters

 Inter-system interference: caused by external transmitters, mainly in the

unlicensed bands