Patent ID: 7292664

Claim:
A process for obtaining frame synchronization and identifying a cell codegroup in a cellular communication system in which a plurality of synchronization codes organized in chips or letters transmitted at a beginning of respective slots is available, the process comprising: acquiring, starting from said synchronization codes, energy values corresponding to respective individual letters with reference to possible starting positions of a corresponding frame within a respective slot; determining energies of corresponding words, storing just a maximum word-energy value and information for a corresponding starting position, said maximum word-energy value and said information regarding the position identifying, respectively, said cell codegroup and a frame synchronization; providing a memory organized in registers, each of which contains energies of the individual letters of a code for all possible staffing positions of the corresponding frame within the respective slot, said registers being connected as circular buffers; and causing content of said circular-buffer registers to rotate by one position at a time for calculating successive word energy values corresponding to different possible starting positions of the corresponding frame within the respective slot.