Wireless communications system with secondary synchronization code based on values in primary synchronization code

摘要

A wireless communication system. The system comprises transmitter circuitry (BST1), the transmitter circuitry comprising encoder circuitry (50) for transmitting a plurality of frames (FR). Each of the plurality of frames comprises a primary synchronization code (PCS) and a second synchronization code (SSC). The encoder circuitry comprises of circuitry (501) for providing the primary synchronization code in response to a first sequence (32). The encoder circuitry further comprises circuitry (502) for providing the secondary synchronization code in response to a second sequence (54) and a third sequence (56). The second sequence is selected from a plurality of sequences. Each of the plurality of sequences is orthogonal with respect to all other sequences. The third sequence is a subset of bits from the first sequence.

主权项

1. A method of forming synchronization codes for a wireless communication device,
comprising the steps of:
providing in an apparatus the primary synchronization code in response to a first sequence; andproviding the secondary synchronization code in response to a second sequence and a third sequence of logical one and minus-one values, the third sequence being different from the first sequence; andwherein the second sequence is selected from a plurality of sequences, wherein each of the plurality of sequences is orthogonal with respect to all other sequences in the plurality of sequences; andwherein the third sequence comprises a sequence of bits from the first sequence, wherein the sequence of bits from the first sequence is repeated a plurality of times in the third sequence.