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Methods and devices for channel estimation for mobile systems of insufficient cyclic prefix length
Methods and devices for channel estimation for mobile systems of insufficient cyclic prefix length
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机译：用于循环前缀长度不足的移动系统的信道估计的方法和设备
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摘要
A method of estimating a channel for mobile systems with insufficient cyclic prefix length, wherein the channel comprises a plurality of multipath components (α,τ), includes: receiving a signal (yn) comprising a plurality of contributions of a transmit signal (xn[k], xn-1[k]) transmitted during a plurality of transmission time intervals (n, n−1) on a plurality of sub-carriers of known pilots (k∈Pb) and a plurality of sub-carriers of unknown data (k∉Pb); determining an estimate of the plurality of multipath components (α,τ) based on a probabilistic relation between the plurality of first contributions (xn[k], xn-1[k]) of the transmit signal, wherein the plurality of first contributions are transmitted during adjacent transmission time intervals (n, n−1), and an observation of the received signal (yn[k]) at a subcarrier (k∈Pb) of the known pilots, wherein the probabilistic relation is based on statistical properties of the plurality of first contributions (xn[k], xn-1[k]) of the transmit signal.
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机译：一种用于估计具有不足的循环前缀长度的移动系统的信道的方法，其中该信道包括多个多径分量（α，τ）包括：接收信号（y n ），该信号包括多个发射信号（x n [k]，x n-1） [k]）在多个传输时间间隔（n，n-1）内在已知导频的多个子载波（k∈P b ）和多个未知数据的子载波（k∉P b ）;基于多个第一贡献之间的概率关系，确定多个多径分量（α，τ）的估计值（ x n [k]，x n-1 [k]），其中在相邻的传输时间间隔（n，n）中传输多个第一贡献-1），并在已知导频的子载波（k∈P b ）上观察接收信号（y n [k]），其中概率关系基于发射信号的多个第一贡献（x n [k]，x n-1 [k]）的统计特性。
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