PUCCH PRBS
Generation of a pseudo-random sequence for the PUCCH uplink.
Description
The PUCCH PRBS block generates a Pseudorandom binary sequence (PRBS) for the physical uplink control channel (PUCCH). This sequence is used to scramble data on the PUCCH. The calculation is based on the scrambling identifier (Physical Layer Cell Identity Number) and the Radio Network Temporary Identifier (Radio Network Temporary Identifier).
Scrambling is performed by bitwise exclusive or (XOR) between the input control codeword and the pseudo-random sequence.
This process is performed as part of the standard [1] section 6.3.2.6.1 to prepare the Uplink Control Information (UCI) data before it is transmitted over the PUCCH channel. Scrambling adds protection and uniqueness to each user’s signalling, reducing conflicts and improving security.
Parameters
Parameters
#
Physical Layer Cell Identity Number —
cell identifier
Real number
Details
The identification number of a physical layer cell, specified as an integer from 0 to 1007.
| Default value |
|
| Program usage name |
|
| Tunable |
No |
| Evaluatable |
Yes |
#
Radio Network Temporary Identifier —
temporary network identifier
Real number
Details
A temporary radio network identifier specified as an integer from 0 to 65535.
| Default value |
|
| Program usage name |
|
| Tunable |
No |
| Evaluatable |
Yes |