| 摘要 |
FIELD: information technologies. ^ SUBSTANCE: each basic station transmits the first multiplexed pilot-signal with time division of channels (TOM) based on the first sequence of pseudo-random numbers (PN), and the second TOM pilot-signal based on the second PN-sequence. A certain second PN-sequence, which uniquely identifies this basic station is assigned to each basic station. Terminal uses the first TDM pilot-signal for detection of signal availability and uses the second TDM pilot-signal for identification of basic stations and accurate synchronisation. As signals are detected, terminal performs correlation with delay of received samples and identifies signal availability. If signal is detected, terminal performs direct correlation of received samples with the help of the first PN sequences for K1 various shifts in time, and identifies K2 of most powerful copies of the first TDM pilot-signals. In process of time synchronisation terminal performs direct correlation of received samples with the help of the second PN-sequences for detection of the second TOM pilot-signal. ^ EFFECT: increased efficiency of signal detection. ^ 39 cl, 13 dwg |
