Patent ID: 8369302

Claim:
A method for mapping a reference signal sequence in an advanced long term evolution system, which is used to map the reference signal sequence to an orthogonal frequency division multiplexing symbol l, comprising: determining the symbol l according to following expressions when the system uses a normal cyclic prefix: l = { l ′ ⁢ mod ⁢ ⁢ 2 + 2 + 3 · ⌊ l ′ / 2 ⌋ ) when ⁢ ⁢ the ⁢ ⁢ current ⁢ ⁢ subframe ⁢ ⁢ is ⁢ ⁢ a ⁢ special ⁢ ⁢ subframe , and ⁢ ⁢ a ⁢ ⁢ configuration ⁢ ⁢ of ⁢ ⁢ the ⁢ ⁢ special ⁢ subframe ⁢ ⁢ 1 , 2 , 6 ⁢ ⁢ or ⁢ ⁢ 7 l ′ ⁢ mod ⁢ ⁢ 2 + 2 when ⁢ ⁢ the ⁢ ⁢ current ⁢ ⁢ subframe ⁢ ⁢ is ⁢ ⁢ a ⁢ special ⁢ ⁢ subframe , and ⁢ ⁢ a ⁢ ⁢ configuration ⁢ ⁢ of ⁢ ⁢ the ⁢ ⁢ special ⁢ subframe ⁢ ⁢ is ⁢ ⁢ 3 , 4 ⁢ ⁢ or ⁢ ⁢ 8 l ′ ⁢ mod ⁢ ⁢ 2 + 5 when ⁢ ⁢ the ⁢ ⁢ current ⁢ ⁢ subframe ⁢ ⁢ is ⁢ ⁢ a ⁢ ⁢ non ⁢ - special ⁢ ⁢ subframe ⁢ ⁢ l ′ = { 0 , 1 , 2 , 3 n s ⁢ ⁢ mod ⁢ ⁢ 2 = 0 , when ⁢ ⁢ the ⁢ ⁢ current ⁢ ⁢ subframe ⁢ ⁢ is ⁢ ⁢ a ⁢ special ⁢ ⁢ subframe , and ⁢ ⁢ a ⁢ ⁢ configuration ⁢ ⁢ of ⁢ ⁢ the ⁢ ⁢ special ⁢ ⁢ subframe ⁢ ⁢ is ⁢ 1 , 2 , 6 ⁢ ⁢ or ⁢ ⁢ 7 0 , 1 n s ⁢ ⁢ mod ⁢ ⁢ 2 = 0 , when ⁢ ⁢ the ⁢ ⁢ current ⁢ ⁢ subframe ⁢ ⁢ is ⁢ ⁢ not ⁢ a ⁢ ⁢ special ⁢ ⁢ subframe , or ⁢ ⁢ a ⁢ ⁢ configuration ⁢ ⁢ of ⁢ ⁢ the ⁢ ⁢ special ⁢ ⁢ subframe ⁢ ⁢ is ⁢ not ⁢ ⁢ 1 , 2 , 6 ⁢ ⁢ or ⁢ ⁢ 7 2 , 3 n s ⁢ ⁢ mod ⁢ ⁢ 2 = 1 , when ⁢ ⁢ the ⁢ ⁢ current ⁢ ⁢ subframe ⁢ ⁢ is ⁢ ⁢ not ⁢ a ⁢ ⁢ special ⁢ ⁢ subframe , or ⁢ ⁢ a ⁢ ⁢ configuration ⁢ ⁢ of ⁢ ⁢ the ⁢ ⁢ special ⁢ ⁢ subframe ⁢ ⁢ is ⁢ not ⁢ ⁢ 1 , 2 , 6 ⁢ ⁢ or ⁢ ⁢ 7 wherein, n s is an index of a time slot in a radio frame.