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A Pseudo-random Noise (PN) sequence is a sequence of binary numbers, e.g. ±1, which appears to be random; but is in fact perfectly deterministic. The sequence appears to be random in the sense that the binary values and groups or runs of the same binary value occur in the sequence in the same proportion they would if the sequence were being generated based on a fair "coin tossing" experiment. In the experiment, each head could result in one binary value and a tail the other value.
You seem to have an incredible thirst for knowledge, as I have spotted 17 threads from you, all on them single phrase postings with subject and message body identical, and all of them posted within an hour. YOU ARE FLOODING the forum. You can use wikipedia or google to find answers to your questions, instead of posting 7 new threads in a timespan of 5 minutes.
sumant.thapliyal said:
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PN stands for pseno random codes in CDMA.PN is assigened at each sector of BTS wn a subsriber come in to that sector that PN is updated.in a BTS each sector has one PN.Each PN has a differnce of 168.for example let α has PN 4.then θ will have PN of 168+4=172 then √=172+168=340
PN as already defined by fellow members is a unique identifier for a sector or cell of a CDMA BTS. There are 512 PN codes for assignement depending on the assignment strategy. PN can sometimes be refered to as short code.
The MS decodes the PN to identify the serving BTS Or the cells in the active, candidate and neighboring lists. It is thus important to have a good PN offset plan to avoid PN confusion by the MS.
In big networks, PN re-use patterns are deployed. If interested, let me know so i upload the related mathematics.
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