Flexible Hopping Definition Mode - Alvarion BreezeACCESS 900 System Manual

Appendix C - Configuring Hopping Frequencies and Operational Sequences

Flexible Hopping Definition Mode

General
The process of setting the hopping sequence using the Flexible Hopping
Definition mode includes the following steps:
1. Select the frequencies to be used using the Flexible Hopping
Definition menu
2. Define the method of generating the basic hopping sequence based
on the set of selected frequencies, using the Scrambling Definition
sub-menu. The method of generating the basic sequence also
defines the hopping shift mechanism for generating different actual
hopping sequences.
3. If two or more non-synchronized AUs (and/or CXs) are co-located,
configure the Spanning Factor parameter to define a different
hopping sequence for each AU in order to minimize interference
between adjacent AUs.
4. If several synchroniszed AUs are collocated (AU-BS), configure the
Hopping Shift parameter to define a different hopping sequence for
each AU in order to minimize interference between adjacent AUs.
The Flexible Hopping Definition menu enables defining the hopping
frequencies and the method of scrambling the selected frequencies for
generating the basic hopping sequence. It also enables to view the
selected hopping frequencies and the current hopping sequence (based
on the previous selections made before the last reset). The new
selections will come into effect only after the next reset.
The default selection (including the case where all frequencies were
deleted) is a single frequency, 915 MHz.
NOTE
The CX/AU and all SU that that will be associated to the CX/AU must be
configured to the same hopping parameters. The SU does not learn the hopping
channels from the AU.
Refer to the technical bulletin, "BreezeACCESS 900 Co-location
Installation Guidelines", for specific instructions on how to properly
install and configure the CX and AU units for operation in environments
where more than one unit will be operating.
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BreezeACCESSS 900 System Manual