公开(公告)号：US20120093013A1

公开(公告)日：2012-04-19

申请号：US13259026

申请日：2010-04-23

Applicant: Shaoning Xiao

Inventor： Shaoning Xiao

IPC: H04W24/00

CPC classification number: H03M13/2771 ,  H03M13/2739 ,  H03M13/2775 ,  H03M13/6525

Abstract: A calculation method of a turbo code internal interleaver is disclosed by the present invention, and comprises: dividing a sequence with a length of Kj, which is input into a turbo code internal interleaver, into a plurality of windows each with a window length of Δj, the window length Δj satisfying 2f2Δj(mod Kj)=0, and Kj being divided exactly by Δj, wherein f2 is a parameter dependent on Kj; obtaining output indices each of which corresponds to each input index in a first window; calculating successively output indices each of which corresponds to each input index in a rest window according to the output indices each of which corresponds to each input index in the first window. A calculation device of a turbo code internal interleaver is also disclosed by the present invention. With the present invention, the computational complexity of the turbo code internal interleaver can be reduced, so as to reduce the time delay of a specific calculation and save memory resources.

Abstract translation: 通过本发明公开了一种turbo码内部交织器的计算方法，包括：将输入到turbo码内部交织器中的长度为Kj的序列划分成多个窗口，每个窗口的窗口长度为＆Dgr ; j，窗口长度＆Dgr; j满足2f2＆Dgr; j（mod Kj）= 0，Kj被精确地除以＆Dgr; j，其中f2是取决于Kj的参数; 获得在第一窗口中各自对应于每个输入索引的输出索引; 根据与第一窗口中的每个输入索引对应的输出索引，在休息窗中依次输出与每个输入索引对应的输出索引。 本发明还公开了一种turbo码内部交织器的计算装置。 利用本发明，可以减少turbo码内部交织器的计算复杂度，以减少特定计算的时间延迟并节约存储资源。

公开(公告)号：US20120300610A1

公开(公告)日：2012-11-29

申请号：US13576814

申请日：2011-01-27

Applicant: Shaoning Xiao

Inventor： Shaoning Xiao

IPC: H04J11/00

CPC classification number: H04L27/2657 ,  H04L25/022 ,  H04L25/023 ,  H04L27/2695

Abstract: A method is disclosed for frequency offset compensation and equalization in an orthogonal frequency division multiplexing system. The method comprises: acquiring a channel estimation value h and a frequency offset value f at a reference symbol; acquiring a Toeplitz matrix M(f) based on the frequency offset value f; performing phase compensation on the channel estimation value h to obtain a channel estimation value h′ at a data symbol; and acquiring an estimation value of a transmitted symbol x based on M(f) and h′. A device is also disclosed for frequency offset compensation and equalization in the orthogonal frequency division multiplexing system. The device comprises a channel estimation unit, a frequency offset acquisition unit, a channel compensation unit and an equalization estimation unit.

Abstract translation: 公开了一种用于正交频分复用系统中的频偏补偿和均衡的方法。 该方法包括：获取参考符号的信道估计值h和频率偏移值f; 基于频率偏移值f获取Toeplitz矩阵M（f）; 对信道估计值h执行相位补偿以获得数据符号处的信道估计值h'; 并且基于M（f）和h'获取发送符号x的估计值。 还公开了一种用于正交频分复用系统中的频偏补偿和均衡的装置。 该装置包括信道估计单元，频率偏移获取单元，信道补偿单元和均衡估计单元。

公开(公告)号：US08897121B2

公开(公告)日：2014-11-25

申请号：US13576814

申请日：2011-01-27

Applicant: Shaoning Xiao

Inventor： Shaoning Xiao

IPC: H04K1/10 ,  H04L12/26 ,  H04J1/16 ,  G08C15/00 ,  G06F11/00

CPC classification number: H04L27/2657 ,  H04L25/022 ,  H04L25/023 ,  H04L27/2695

Abstract: A method is disclosed for frequency offset compensation and equalization in an orthogonal frequency division multiplexing system. The method comprises: acquiring a channel estimation value h and a frequency offset value f at a reference symbol; acquiring a Toeplitz matrix M(f) based on the frequency offset value f; performing phase compensation on the channel estimation value h to obtain a channel estimation value h′ at a data symbol; and acquiring an estimation value of a transmitted symbol x based on M(f) and h′. A device is also disclosed for frequency offset compensation and equalization in the orthogonal frequency division multiplexing system. The device comprises a channel estimation unit, a frequency offset acquisition unit, a channel compensation unit and an equalization estimation unit.

Abstract translation: 公开了一种用于正交频分复用系统中的频偏补偿和均衡的方法。 该方法包括：获取参考符号的信道估计值h和频率偏移值f; 基于频率偏移值f获取Toeplitz矩阵M（f）; 对信道估计值h执行相位补偿以获得数据符号处的信道估计值h'; 并且基于M（f）和h'获取发送符号x的估计值。 还公开了一种用于正交频分复用系统中的频偏补偿和均衡的装置。 该装置包括信道估计单元，频率偏移获取单元，信道补偿单元和均衡估计单元。

公开(公告)号：US08817720B2

公开(公告)日：2014-08-26

申请号：US13258365

申请日：2010-05-07

Applicant: Shaoning Xiao ,  Xiaoming Su

Inventor： Shaoning Xiao ,  Xiaoming Su

IPC: H04W4/00 ,  G01R31/08 ,  H04W72/00 ,  H04L5/00

CPC classification number: H04L5/0007 ,  H04W72/00

Abstract: The present invention discloses a method for determining a subband index, the method comprises: an Evolved Node B (eNB) receives r, calculates a difference between the received r and a formula   〈 N - s i M - i 〉 corresponding to each obtained subband index, searches sequences 〈 N - 1 M - i 〉 , 〈 N - 2 M - i 〉 , … ⁢ , 〈 0 M - i 〉 in a stored intermediate value table according to the calculated difference to obtain each si constituting {si}i=0M−1. The present invention further discloses a device for determining a subband index, the device comprises a table generation module, a receiving module and a calculation module. The method and device disclosed in the present invention are capable of reducing the storage space needed for a subband index report.

Abstract translation: 本发明公开了一种确定子带索引的方法，所述方法包括：演进节点B（eNB）接收r，计算接收的r与对应于每个获得的子带索引的公式⟨N-si M-i a之间的差异 根据计算出的差值，在存储的中间值表中搜索序列⟨N-1 M-i⟩，⟨N-2 M-i⟩，...，⟨0 M-i to以获得构成{si} i的每个si = 0M-1。 本发明还公开了一种用于确定子带索引的设备，该设备包括表生成模块，接收模块和计算模块。 本发明公开的方法和装置能够减少子带索引报告所需的存储空间。

公开(公告)号：US20120087320A1

公开(公告)日：2012-04-12

申请号：US13258365

申请日：2010-05-07

Applicant: Shaoning Xiao ,  Xiaoming Su

Inventor： Shaoning Xiao ,  Xiaoming Su

IPC: H04W72/04

CPC classification number: H04L5/0007 ,  H04W72/00

Abstract: The present invention discloses a method for determining a subband index, the method comprises: an Evolved Node B (eNB) receives r, calculates a difference between the received r and a formula   〈 N - s i M - i 〉 corresponding to each obtained subband index, searches sequences 〈 N - 1 M - i 〉 , 〈 N - 2 M - i 〉 , …  , 〈 0 M - i 〉 in a stored intermediate value table according to the calculated difference to obtain each si constituting {si}i=0M−1. The present invention further discloses a device for determining a subband index, the device comprises a table generation module, a receiving module and a calculation module. The method and device disclosed in the present invention are capable of reducing the storage space needed for a subband index report.

Abstract translation: 本发明公开了一种确定子带索引的方法，所述方法包括：演进节点B（eNB）接收r，计算接收到的r与对应于每个获得的子带索引的公式 根据计算出的差值，在存储的中间值表中搜索序列，N-2 M-i>，...，...，0M-i>，以获得构成{si} i = 0M-1。 本发明还公开了一种用于确定子带索引的设备，该设备包括表生成模块，接收模块和计算模块。 本发明公开的方法和装置能够减少子带索引报告所需的存储空间。