METHOD AND APPARATUS FOR DETECTING SYNCHRONIZATION SIGNAL IN WIRELESS COMMUNICATION SYSTEM

摘要

A method of detecting a synchronization signal at a device-to-device (D2D) user equipment (UE) in a wireless communication system includes receiving a primary sidelink synchronization signal (PSSS), determining a normalized carrier frequency offset (CFO) from an initial CFO, determining hypothesis test levels from the normalized CFO, and performing correlation using the received PSSS, a first sequence, a second sequence, a first sequence shifted per hypothesis test level and a second sequence shifted per hypothesis test level. When the number of hypothesis test levels is greater than 1, the shifted first sequence and the shifted second sequence having a complex conjugate relation in a predetermined normalized CFO value are correlated via the same correlator.

主权项

1. A method of detecting a synchronization signal at a device-to-device (D2D) user equipment (UE) in a wireless communication system, the method comprising:
receiving a primary sidelink synchronization signal (PSSS); determining a normalized carrier frequency offset (CFO) from an initial CFO; determining hypothesis test levels from the normalized CFO; and performing correlation using the received PSSS and at least one of a first sequence, a second sequence, a first sequence shifted per hypothesis test level or a second sequence shifted per hypothesis test level, wherein, when the number of hypothesis test levels is greater than 1, the shifted first sequence and the shifted second sequence having a complex conjugate relation in a predetermined normalized CFO value are correlated via the same correlator.