公开(公告)号：US08611259B2

公开(公告)日：2013-12-17

申请号：US11809798

申请日：2007-06-01

Applicant: Zhouyue Pi ,  Eddy Kwon ,  Jin-Kyu Han ,  Donghee Kim ,  Daegyun Kim

Inventor： Zhouyue Pi ,  Eddy Kwon ,  Jin-Kyu Han ,  Donghee Kim ,  Daegyun Kim

IPC: H04L12/26 ,  H04B7/005 ,  H04B17/00 ,  H04B7/00

CPC classification number: H04W72/0406 ,  H04L1/0029

Abstract: A method of providing channel state information feedback in a wireless communication system is provided. The method includes measuring original channel state information for each of a plurality of channels. An offset vector is applied to the original channel state information to generate modified channel state information. A subset of the channels is identified based on the modified channel state information. The original channel state information or the modified channel state information is reported.

Abstract translation: 提供了一种在无线通信系统中提供信道状态信息反馈的方法。 该方法包括测量多个信道中的每一个的原始信道状态信息。 将偏移矢量应用于原始信道状态信息以产生修改的信道状态信息。 基于修改的信道状态信息来识别信道的子集。 报告原始信道状态信息或修改信道状态信息。

公开(公告)号：US08543149B2

公开(公告)日：2013-09-24

申请号：US12286223

申请日：2008-09-29

Applicant: Zhouyue Pi ,  Farooq Khan

Inventor： Zhouyue Pi ,  Farooq Khan

IPC: H04Q7/20

CPC classification number: H04L5/0053 ,  H04W24/10 ,  H04W72/08

Abstract: A method of operating a base station comprising determining one or more time-frequency resources to be used for interference power estimation, generating a message indicating the one or more time-frequency resources to be used for interference power estimation, and transmitting the message to a subscriber station.

公开(公告)号：US08495450B2

公开(公告)日：2013-07-23

申请号：US12855442

申请日：2010-08-12

Applicant: Shadi Abu-Surra ,  Eran Pisek ,  Zhouyue Pi

Inventor： Shadi Abu-Surra ,  Eran Pisek ,  Zhouyue Pi

IPC: H03M13/00

CPC classification number: H04L1/0057 ,  H03M13/033 ,  H03M13/036 ,  H03M13/1137 ,  H03M13/116 ,  H03M13/1165 ,  H03M13/118 ,  H03M13/6362 ,  H03M13/6516 ,  H03M13/6525 ,  H03M13/6544 ,  H04L1/005

Abstract: A family of low density parity check (LDPC) codes is generated based on a mother code having a highest code rate. The low density parity check (LDPC) codes include a codeword size of at least 1344. The LDPC codes also include a plurality of parity bits in a lower triangular form. The mother code is constructed by: selecting m number of rows and n number of columns; setting maximum column weights and row weights; designing a protograph matrix based on the set column weights and row weights and selected m and n; and selecting circulant blocks based on the protograph matrix.

Abstract translation: 基于具有最高码率的母码生成低密度奇偶校验（LDPC）码族。 低密度奇偶校验（LDPC）码包括至少1344的码字大小。LDPC码还包括下三角形形式的多个奇偶校验位。 母码由以下构成：选择m行和n列; 设置最大列权重和行权重; 基于设置的列权重和行权重设计原型矩阵，并选择m和n; 并根据原型矩阵选择循环块。

公开(公告)号：US08442136B2

公开(公告)日：2013-05-14

申请号：US13310440

申请日：2011-12-02

Applicant: Jianzhong Zhang ,  Joonyoung Cho ,  Zhouyue Pi ,  Farooq Khan

Inventor： Jianzhong Zhang ,  Joonyoung Cho ,  Zhouyue Pi ,  Farooq Khan

IPC: H04B15/00

CPC classification number: H04L1/0668 ,  H04L1/0025 ,  H04L1/0029 ,  H04L1/08

Abstract: A method of transmitting a control channel format indicator (CCFI), also known as PCFICH (Physical Control Format Indicator Channel), in case where the length of a coded CCFI is not an integer multiple of three, including mapping a plurality of two-bit CCFI into a codebook with each component codeword having three bits; generating a sequence of codewords selected from the codebook by repeating the selected component codeword for predetermined times; generating a codeword by concatenating the sequence of the selected component codewords with the original CCFI bits; and transmitting the codeword carrying information of CCFI. The method further includes a step of generating a permutation of each of the four codewords by assigning K repetitions of the three-bit component codeword to the number of K resource units respectively and mapping remaining K bits of each of the four codewords separately to the number of K resource units.

Abstract translation: 在编码CCFI的长度不是3的整数倍的情况下，发送控制信道格式指示符（CCFI）（也称为PCFICH（物理控制格式指示符信道））的方法，包括映射多个两比特 CCFI转换成具有三比特的每个分量码字的码本; 通过在预定时间内重复所选择的分量码字来产生从码本中选择的码字序列; 通过将所选择的分量码字的序列与原始CCFI比特级联来产生码字; 并传送携带CCFI信息的码字。 该方法还包括通过将三比特分量码字的K个重复分别分配给K个资源单元的数量并分别将四个码字中的每一个分别映射到数字的四个码字中的每一个生成排列的步骤 的K资源单位。

公开(公告)号：US08433345B2

公开(公告)日：2013-04-30

申请号：US12814068

申请日：2010-06-11

Applicant: Ying Li ,  Zhouyue Pi ,  Baowei Ji

Inventor： Ying Li ,  Zhouyue Pi ,  Baowei Ji

IPC: H04W68/00 ,  H04B7/00

CPC classification number: H04W68/02 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/20

Abstract: A first base station and mobile station are capable of mitigating interference resulting from communications from a second base station. The base station can determine if at least a portion of a paging slot overlaps with an available interval (AI) of the second base station in which the second base station transmits. The first base station adjusts an occurrence of the paging slot such that the paging slot overlaps and/or occurs within an unavailable interval (UAI) of the second base station wherein the base station does not transmit or transmits with limited resources.The mobile station also can determine if at least a portion of a listening slot overlaps with the AI and, using the same procedure that the first base station uses to recalculate the paging slot, recalculates the listening slot such that the listening slot overlaps and/or occurs within the UAI of the LDC mode.

Abstract translation: 第一基站和移动台能够减轻来自第二基站的通信所产生的干扰。 基站可以确定寻呼时隙的至少一部分是否与第二基站发送的第二基站的可用间隔（AI）重叠。 第一基站调整寻呼时隙的发生，使得寻呼时隙与第二基站的不可用间隔（UAI）重叠和/或发生，其中基站不以有限的资源发送或发送。 移动台还可以确定收听时隙的至少一部分是否与AI重叠，并且使用与第一基站用于重新计算寻呼时隙的相同的过程，重新计算收听时隙，使得收听时隙与/ 发生在LDC模式的UAI内。

公开(公告)号：US08432982B2

公开(公告)日：2013-04-30

申请号：US12823051

申请日：2010-06-24

Applicant: Zhouyue Pi

Inventor： Zhouyue Pi

IPC: H04K1/10 ,  H04L27/28

CPC classification number: H04L5/0007 ,  H04L5/0048 ,  H04L27/2627 ,  H04L27/2649

Abstract: A method and multiple antenna transmitting apparatus for transmitting a midamble in a wireless communication system, and a method and receiving device for receiving a midamble in a wireless communication system are provided. A method for transmitting a midamble by a multiple antenna transmitting device includes determining a pattern for a midamble including null subcarriers and pilot subcarriers, wherein each of the pilot subcarriers corresponds to one of a plurality of pilot signals, and each of the plurality of pilot signals corresponds to a different one of a plurality of transmit antennas, and transmitting the pilot signals in corresponding pilot subcarriers based on the determined pattern, wherein the pilot signals are transmitted in an Orthogonal Frequency Division Multiplexing (OFDM) symbol of a resource block comprising a plurality of subcarriers and a plurality of OFDM symbols.

Abstract translation: 提供了一种用于在无线通信系统中发送中置码的方法和多天线发送装置，以及用于在无线通信系统中接收中置码的方法和接收装置。 一种用于通过多天线发送装置发送中置码的方法包括确定包括无效副载波和导频子载波的中间码的模式，其中每个导频子载波对应于多个导频信号之一，并且多个导频信号中的每一个 对应于多个发射天线中的不同的发射天线，并且基于所确定的模式在相应的导频子载波中发射导频信号，其中导频信号在包括多个发射天线的资源块的正交频分复用（OFDM）符号中发射 的子载波和多个OFDM符号。

公开(公告)号：US08386878B2

公开(公告)日：2013-02-26

申请号：US12076777

申请日：2008-03-21

Applicant: Zhouyue Pi ,  Farooq Khan

Inventor： Zhouyue Pi ,  Farooq Khan

IPC: G06F11/00

CPC classification number: H04L1/004 ,  H03M13/09 ,  H03M13/091 ,  H03M13/2906 ,  H03M13/2966 ,  H03M13/6306 ,  H03M13/6525 ,  H03M13/6561 ,  H04L1/0041 ,  H04L1/0061 ,  H04L1/0075

Abstract: A method and a circuit for generating cyclic redundancy checks. The method calculates a plurality of cyclic redundancy checks for a transport block with a plurality of information bits. At least one cyclic redundancy check among the plurality of cyclic redundancy checks is calculated based on a subset of information bits, and at least one information bit among the plurality of information bits is not within said subset of the information bits. In addition, a transport block cyclic redundancy check may be calculated based on all the information bits.

公开(公告)号：US20120307761A1

公开(公告)日：2012-12-06

申请号：US13541293

申请日：2012-07-03

Applicant: Jianzhong Zhang ,  Zhouyue Pi ,  Farooq Khan ,  Jiannan Tsai

Inventor： Jianzhong Zhang ,  Zhouyue Pi ,  Farooq Khan ,  Jiannan Tsai

IPC: H04W52/14

CPC classification number: H04W52/346 ,  H04W52/143 ,  H04W52/146 ,  H04W52/16 ,  H04W52/325 ,  H04W52/343 ,  H04W52/367 ,  H04W72/042

Abstract: In a communication system, a base station transmits power setting information in a downlink Physical Downlink Shared Channel (PDSCH). A mapping scheme between overhead signals and reference signal (RS) overhead ratios, and the traffic-to-pilot ratios (T2P) calculation methods are established. A user-specific T2P ratio for certain OFDM symbols, a RS overhead ratio and a calculation method selected from the plurality of T2P calculation methods are assigned to a wireless terminal. An overhead signal corresponding to the assigned RS overhead ratio and the assigned T2P calculation method is selected in accordance with the mapping scheme and transmitted to the wireless terminal. In addition, the user-specific traffic-to-pilot ratio is transmitted to the wireless terminal. The wireless terminal calculates the traffic-to-pilot ratios across different transmission antennas and different OFDM symbols based on the received traffic-to-pilot ratio, the RS overhead ratio and the T2P calculation method indicated by the RS overhead signal.

Abstract translation: 在通信系统中，基站在下行物理下行链路共享信道（PDSCH）中发送功率设定信息。 建立了开销信号和参考信号（RS）开销比之间的映射方案，以及业务导频比（T2P）计算方法。 将特定的OFDM符号的用户特定T2P比率，从RSP开销比和从多个T2P计算方法中选择的计算方法分配给无线终端。 根据映射方案选择与分配的RS开销比对应的开销信号和分配的T2P计算方法，并发送给无线终端。 此外，用户特定的业务导频比被发送到无线终端。 无线终端基于由RS开销信号指示的接收的业务导频比，RS开销比和T2P计算方法，计算不同发射天线和不同OFDM符号之间的业务导频比。

公开(公告)号：US08306095B2

公开(公告)日：2012-11-06

申请号：US12378004

申请日：2009-02-10

Applicant: Kaushik Morapakkam Josiam ,  Zhouyue Pi ,  Farooq Khan

Inventor： Kaushik Morapakkam Josiam ,  Zhouyue Pi ,  Farooq Khan

IPC: H04B3/36

CPC classification number: H04B7/15521

Abstract: A system and method for relaying communications in a wireless communication network. A relay station capable of relaying wireless communications includes a plurality of receiver antennas and a plurality of transmitter antennas. The plurality of receiver antennas is operable to receive, in a first time interval, a first communication from a base station and a second communication from a subscriber station. The plurality of transmitter antennas is operable transmit a third communication to the base station and the subscriber station in a second time interval. The relay station also includes a network encoder. The network encoder is configured to generate a combined symbol constellation. The combined symbol constellation is generated by combining a first symbol constellation transmitted in said first communication with a second symbol constellation transmitted in said second communication. Further, the third communication comprises said combined symbol constellation.

Abstract translation: 一种在无线通信网络中中继通信的系统和方法。 能够中继无线通信的中继站包括多个接收机天线和多个发射机天线。 多个接收机天线可操作以在第一时间间隔中从基站接收第一通信和从用户台接收第二通信。 多个发射机天线可操作地在第二时间间隔中向基站和用户台发送第三通信。 中继站还包括网络编码器。 网络编码器被配置为生成组合符号星座。 通过将在所述第一通信中发送的第一符号星座与在所述第二通信中发送的第二符号星座组合来生成组合符号星座。 此外，第三通信包括所述组合符号星座。

公开(公告)号：US20120263254A1

公开(公告)日：2012-10-18

申请号：US13497786

申请日：2010-09-16

Applicant: Hai Wang ,  Kaushik Josiam ,  Qi Wu ,  Zhouyue Pi

Inventor： Hai Wang ,  Kaushik Josiam ,  Qi Wu ,  Zhouyue Pi

IPC: H04L27/04

CPC classification number: H04L5/0048 ,  H04L5/0023

Abstract: The present invention provides a method for transmitting pilots in a multi-carrier wireless transmission system. A wireless time-frequency transmission block is composed of N consecutive OFDM symbols in time domain and M consecutive physical sub-carriers in frequency domain, N and M are integers those are greater than or equal to 1. The method includes: partitioning the wireless time-frequency transmission block into several areas, and determining the position of pilots, of which the total number is a preset number, according to the time-frequency domain balancing principle of pilots of various antennas in various areas; inserting pilots at the pilot positions of each antenna corresponding to the antenna for transmission. In accordance with the present invention, the simultaneous transmission of multiple antennas is supported in a wireless time-frequency transmission block of a multi-carrier wireless transmission system.

Abstract translation: 本发明提供一种在多载波无线传输系统中发送导频的方法。 无线时频传输块由时域中的N个连续OFDM符号和频域中的M个连续物理子载波组成，N和M是大于或等于1的整数。该方法包括：将无线时间 根据各个领域的各种天线的导频的时频平衡原理，确定导频的位置，其总数为预设编号; 在与天线相对应的每个天线的导频位置处插入导频以进行传输。 根据本发明，在多载波无线传输系统的无线时频传输块中支持多个天线的同时传输。