| 摘要 |
A transmitter (110), a receiver (120) and methods (400, 600) therein, configured to transmit a first type of synchronisation signal, in M1 symbols l i , 0 = i = (M 1 1) and a second type of synchronisation signal in M 2 symbols k j , 0 = j = (M 2 1) of a subframe (200), wherein M 2 = M 1 = 2. The transmitter (110) comprises a processor (520), configured to determine in which symbols l i the synchronisation signal of the first type is to be transmitted, and in addition configured to calculate in which symbols k j , the synchronisation signal of the second type is to be transmitted, by placing each of the M 2 symbols k j at a symbol distance from an associated symbol l i , wherein said symbol distance between each of the M 2 symbols k j and the respective associated symbol l i is equal for all of the M 1 symbols l i in the subframe (200). The transmitter (110) also comprises a transmitting circuit (530) configured to transmit the synchronisation signals of the first type in the M 1 symbols l i , and transmitting the synchronisation signals of the second type in the M 2 symbols k j . |
