The values can be read from table 6.11.2. The indices m 0 andĪnd determine the cyclic shift. SequencesĪre different cyclic shifts of an m-sequence, s ˜. Two binary sequences, each of length 31, are used to generate the SSS. Synchronization signals denoted s ˜, c ˜ and z ˜. M-sequences, each of length 31, are used to generate the The secondary synchronization signal (SSS) is based on maximum length sequencesĪn m-sequence is a pseudorandom binary sequence which can beĬreated by cycling through every possible state of a shift register of length Is any lag between the two sequences, the correlation is zero. Ideal sequence and a received sequence is greatest when the lag is zero. So when you write code youd have to specify 'This is a character' or 'This is a binary number', high level programming language have functions to make that easier. Plus, the same sequence can represent different types of data in different contexts. When used as a synchronization code, the correlation between the A sequence can represent many things: a number, a character, a pixel. These codes have the useful property of having zero cyclic autocorrelation atĪll nonzero lags. Zadoff-Chu sequences are a construction of Frank-Zadoff sequences defined by D. The primary synchronization signal (PSS) is based on a frequency-domain Zadoff-Chu Once you establish the values of N I D ( 1 ) and N I D ( 2 ), you can determine the cell identity ( N I D c e l l). The SSS can then be demodulatedĪnd combined with knowledge of N I D ( 2 ) to obtain N I D ( 1 ). ![]() You can obtain N I D ( 2 ) by successfully demodulating the PSS. Identity group ( N I D ( 1 )) and the cell identity within the group ( N I D ( 2 )). The secondary synchronization signal (SSS) is linked to the cell The primary synchronization signal (PSS) is linked to the cell identity within the Synchronization Signals and Determining Cell Identity This arrangement creates 504 unique physical cell identities. N I D ( 2 ) is the identity within the group (0 to 2). N I D ( 1 ) is the physical layer cell identity group (0 to
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