Patent ID: 6987746

Claim:
A method for an apparatus receiving a pilot pattern, comprising: storing pilot pattern sequences demodulated and/or inputted by slots of a frame for at least one of channel estimation or frame synchronization for at least one of uplink channel or downlink channel, wherein the pilot pattern sequences have a relation based on one or both of the following; ∑ i = 1 α ⁢ ⁢ R i ⁡ ( τ ) = { α · 15 , τ = 0 - α , τ ≠ 0 , α = 1 , 2 , 3 , … ⁢ , 8 ( 1 ) where ∝=1, 2, 3, . . . , 8 and R i (τ) is representative of a first correlation function of the each pilot pattern sequence; ∑ i = 1 α / 2 ⁢ ⁢ ( R 2 ⁢ i - 1 , 2 ⁢ i ⁡ ( τ ) + R 2 ⁢ i , 2 ⁢ i - 1 ⁡ ( τ + 1 ) ) = { - α · 15 , τ = 7 α , τ ≠ 7 , α = 2 , 4 , 6 , 8 ( 2 ) where ∝=2, 4, 6, 8 and R 2i−1, 2i (τ) and R 2i, 2i−1 are representative of a second correlation function between a pair of pilot pattern sequences, and i≧1.