Alvarion BreezeACCESS 4900 User Manual download pdf (Page 67)

Air Interface Parameters

BreezeCONFIG for BreezeACCESS VL and BreezeACCES 4900 User Manual

value of the Maximum Tx Power parameter and the maximum Tx power

allowed by the HW and the Country Code for the specific modulation level.

This parameter also sets the upper boundary for the applicable Max Tx Power

Range entry in the Transmit Power Table. It also sets the maximum level for

the ATPC algorithm. The value of Max Tx Power cannot be higher than the

current value of the applicable Tx Power entry in the Transmit Power Table.

2.4.3.3 Transmit Power

In the AU, the Transmit Power parameter defines the fixed transmit power level

and is not part of the ATPC algorithm.

In the SU, the Transmit Power parameter defines the fixed transmit power level

when the ATPC algorithm is disabled. If the ATPC Option is enabled, the value

configured for this parameter serves for setting the initial value to be used by the

ATPC algorithm after either power up or losing synchronization with the AU.

The minimum value for the Transmit Power Parameter is –10 dBm (the ATPC may

reduce the actual transmit power of the SU to lower values). The maximum value

of the Transmit Power Parameter depends on several unit properties and

parameters: The HW revision of the unit, the Maximum Allowed Tx Power as

defined for the applicable Sub-Band, and the Maximum EIRP as defined for the

applicable Sub-Band, together with the value of the Antenna Gain. In the SU, it

cannot be higher than the Maximum Tx Power parameter.

For each modulation level, the unit will use as Tx Power (see Transmit Power

table) the minimum between this parameter and the maximum Tx power allowed

by the HW and the Country Code for the specific modulation level.

2.4.3.4 Maximum Tx Power (SU only)

The Maximum Tx Power parameter limits the maximum transmit power that can

be reached by the ATPC algorithm. It also sets the upper limits for the Transmit

Power parameters.

The minimum value for the Maximum Tx Power is -10 dBm. The maximum value

depends on several unit properties and parameters: The HW revision of the unit,

the Maximum Allowed Tx Power as defined for the applicable Sub-Band, and the

Maximum EIRP as defined for the applicable Sub-Band, together with the value of

the Antenna Gain.

For each modulation level, the unit will use as Max Tx Power (see Maximum

Transmit Power table) the minimum between this parameter and the maximum

Tx power allowed by the HW and the Country Code for the specific modulation

level.

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Alvarion BreezeACCESS 4900 User Manual Page 67