RELIEF OF FALSE AND IDENTICAL CHANNEL UP LINK RECEPTION IN PROCESSING COMMUNICATION SYSTEM USING SCRAMBLING SEQUENCE

摘要

PROBLEM TO BE SOLVED: To remarkably reduce possibility of decoding a show-through signal by transmitting a scrambled up link A data and a scrambled up link B data. SOLUTION: Scrambling sequences are given to same color up link beams, by using an ML sequence generated by a shift register (S402). They are obtained in a network operation and control center(NOC) and NOC distributes the scrambling sequences to individual user terminal equipment (UET) (403). One and more UET encode up link A data and up link B data by using a Reed Solomon code, where inner codes optionally continue (S406 and S408) at will. The scrambling sequences A and B are affected by encoded up link A and B data (S408 and S410). Then data are transmitted in up links A and B.