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What is HSN(Hopping Sequence Number)? How do we apply it?
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Answer Posted / srujan
The test set offers two basic forms of frequency hopping
algorithms: cyclic and pseudo random. When set to the cyclic
form, the test set and the mobile station are cycled through
a fixed repeated pattern of frequencies. There are a total
of 64 different frequency patterns that the test set can
generate and use. The hopping sequence the mobile station
uses depends on the Hopping Sequence Number (HSN) specified
in the test set. An HSN of zero corresponds to the cyclic
hopping sequence, and values 1 through 63 correspond to the
pseudo random patterns. The ARFCNs used in the hopping
sequence pattern are determined by the contents of the test
set's Mobile Allocation (MA) Table. The entry of the MA
Table at which the hopping sequence begins is called the
Mobile Allocation Index Offset (MAIO). Note that an MAIO of
zero corresponds to the first entry of the MA Table.
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