Each base station transmits a TDM pilot 1 having multiple instances of a pilot-1 sequence generated with a PN1 sequence and a TDM pilot 2 having at least one instance of a pilot-2 sequence generated with a PN2 sequence. Each base station is assigned a specific PN2 sequence that uniquely identifies that...http://www.google.fr/patents/US8027372?utm_source=gb-gplus-shareBrevet US8027372 - Signal acquisition in a wireless communication system
Signal acquisition in a wireless communication system