公开(公告)号：US08391130B2

公开(公告)日：2013-03-05

申请号：US11756035

申请日：2007-05-31

Applicant: Zhouyue Pi

Inventor： Zhouyue Pi

IPC: H04J11/00 ,  H04L5/04 ,  H04B7/10

CPC classification number: H04L1/1664 ,  H04L5/0042 ,  H04L5/0048 ,  H04L5/0064 ,  H04L25/03866 ,  H04L27/2613 ,  H04L27/2634

Abstract: Methods and apparatuses for estimating and reducing interference in wireless communication systems are disclosed. As one example, a method for reducing interference in a wireless communication system is disclosed. The method includes the steps of generating a tile for transmission, the tile including a first portion and a second portion, inserting small message information into the first portion or the second portion, if the small message information is inserted into the first portion, inserting data into the second portion, and if the small message information is inserted into the second portion, inserting the data into the first portion.

Abstract translation: 公开了用于估计和减少无线通信系统中的干扰的方法和装置。 作为一个示例，公开了一种用于减少无线通信系统中的干扰的方法。 该方法包括以下步骤：生成用于传输的瓦片，所述瓦片包括第一部分和第二部分，将小信息信息插入到第一部分或第二部分中，如果小信息信息被插入到第一部分中，插入数据 进入第二部分，如果小信息信息被插入第二部分，则将数据插入第一部分。

公开(公告)号：US20130051486A1

公开(公告)日：2013-02-28

申请号：US13595811

申请日：2012-08-27

Applicant: Zhouyue Pi ,  Omar EI Ayach ,  Sridhar Rajagopal ,  Shadi Abu-Surra

Inventor： Zhouyue Pi ,  Omar EI Ayach ,  Sridhar Rajagopal ,  Shadi Abu-Surra

IPC: H04B7/02 ,  H04L27/00

CPC classification number: H04B7/0465 ,  H04B7/02 ,  H04B7/0426 ,  H04B7/043 ,  H04B7/0617 ,  H04B7/0897 ,  H04L27/2626 ,  H04W52/225 ,  H04W52/30 ,  H04W52/42

Abstract: A method, apparatus, and system to transmit signals using multiple antennas with per-antenna power constraints. The method includes initializing a precoding algorithm to a complex matrix. The precoding algorithm is for precoding signals transmitted by a plurality of antennas. The method includes iteratively processing the precoding algorithm on a per-antenna basis by, at each iteration, sequentially updating a precoder for each of the plurality of antennas. The method includes, after each iteration, determining whether the precoding algorithm has converged based on a change in a rate of mutual information across iterations. Additionally, the method includes, in response to determining that the precoding algorithm has converged, transmitting the signals using the precoding algorithm.

Abstract translation: 一种使用具有每天线功率约束的多个天线发射信号的方法，装置和系统。 该方法包括将预编码算法初始化为复数矩阵。 预编码算法用于预编码由多个天线发送的信号。 该方法包括在每个天线的基础上迭代地处理预编码算法，在每个迭代中，顺序地更新多个天线中的每个天线的预编码器。 该方法包括在每次迭代之后，基于跨越迭代的互信息速率的变化来确定预编码算法是否已经收敛。 此外，该方法包括响应于确定预编码算法已经收敛，使用预编码算法发送信号。

公开(公告)号：US20120320874A1

公开(公告)日：2012-12-20

申请号：US13489397

申请日：2012-06-05

Applicant: Ying Li ,  Zhouyue Pi

Inventor： Ying Li ,  Zhouyue Pi

IPC: H04W36/00 ,  H04W4/00

CPC classification number: H04W48/12 ,  H04B7/0619 ,  H04B7/0695 ,  H04W16/28 ,  H04W48/20 ,  H04W72/046 ,  H04W74/002

Abstract: A method for a base station to support network entry of a mobile station in a communication system is provided. The method includes transmitting to the mobile station each of a plurality of transmitted network entry signals over a preferred downlink beam corresponding to the transmitted network entry signal. Each of a plurality of received network entry signals is received from the mobile station over a preferred uplink beam corresponding to the received network entry signal. Each of the transmitted network entry signals comprises the preferred uplink beam corresponding to a subsequently received network entry signal, and each of the received network entry signals comprises the preferred downlink beam corresponding to a subsequently transmitted network entry signal.

Abstract translation: 提供了一种用于支持移动站在通信系统中的入口的基站的方法。 该方法包括通过对应于所发送的网络入口信号的优选下行链路波束向移动台发送多个发送的网络入口信号中的每一个。 通过对应于所接收的网络进入信号的优选上行链路波束从移动台接收多个接收的网络入口信号中的每一个。 每个发送的网络入口信号包括对应于随后接收的网络入口信号的优选上行链路波束，并且所接收的网络入口信号中的每一个包括对应于随后发送的网络入口信号的优选下行链路波束。

公开(公告)号：US20120307726A1

公开(公告)日：2012-12-06

申请号：US13482612

申请日：2012-05-29

Applicant: Zhouyue Pi ,  Ying Li ,  Farooq Khan

Inventor： Zhouyue Pi ,  Ying Li ,  Farooq Khan

IPC: H04W56/00

CPC classification number: H04J11/0069 ,  H04L5/0053 ,  H04L27/2601 ,  H04L27/2613 ,  H04L27/2655 ,  H04W56/0015 ,  H04W76/10

Abstract: A base station transmits a plurality of primary synchronization channel (PSC) symbols to a mobile station in a slot of a subframe of a frame-based wireless communication system. The base station also transmits a plurality of secondary synchronization channel (SSC) symbols to the mobile station in the slot of the subframe. The mobile station determines a preferred receiver beam based on the plurality of received consecutive PSC symbols.

Abstract translation: 基站在基于帧的无线通信系统的子帧的时隙中向移动台发送多个主同步信道（PSC）符号。 基站还在子帧的时隙中向移动台发送多个次同步信道（SSC）符号。 移动台基于多个接收的连续PSC符号来确定优选的接收机波束。

公开(公告)号：US08295155B2

公开(公告)日：2012-10-23

申请号：US12189410

申请日：2008-08-11

Applicant: Joon-Young Cho ,  Jianzhong Zhang ,  Aris Papasakellariou ,  Zhouyue Pi ,  Ju-Ho Lee

Inventor： Joon-Young Cho ,  Jianzhong Zhang ,  Aris Papasakellariou ,  Zhouyue Pi ,  Ju-Ho Lee

IPC: H04J11/00

CPC classification number: H04L5/0055 ,  H04B1/7097 ,  H04B2201/709709 ,  H04J11/005 ,  H04J13/0048 ,  H04J13/0062 ,  H04J13/18 ,  H04L1/0026 ,  H04L1/1607 ,  H04L1/1861 ,  H04L5/0016 ,  H04L5/0019 ,  H04L5/0053 ,  H04L27/2607 ,  H04W72/02 ,  H04W72/0406 ,  H04W72/0466 ,  H04W84/042

Abstract: A method and apparatus are provided for allocating code resources to ACK/NACK channel indexes, when UEs need ACK/NACK transmission in a wireless communication system in which a predetermined number of orthogonal cover Walsh codes is selected from among available orthogonal cover Walsh codes, at least one subset is formed, having the selected orthogonal cover Walsh codes arranged in an ascending order of cross interference, subsets are selected for use in first and second slots of a subframe, and the orthogonal cover Walsh codes of the subset selected for each slot and ZC sequence cyclic shift values are allocated to the ACK/NACK channel indexes.

Abstract translation: 提供了一种方法和装置，用于在UE在从可用的正交覆盖沃尔什码中选择预定数量的正交覆盖沃尔什码的无线通信系统中需要ACK / NACK传输时，将代码资源分配给ACK / NACK信道索引， 形成至少一个子集，具有以交叉干扰的升序排列的所选择的正交覆盖沃尔什码，子集被选择用于子帧的第一和第二时隙，以及为每个时隙选择的子集的正交覆盖沃尔什码， ZC序列循环移位值被分配给ACK / NACK信道索引。

公开(公告)号：US20120240001A1

公开(公告)日：2012-09-20

申请号：US13306747

申请日：2011-11-29

Applicant: Shadi Abu-Surra ,  Thomas M. Henige ,  Eran Pisek ,  Zhouyue Pi

Inventor： Shadi Abu-Surra ,  Thomas M. Henige ,  Eran Pisek ,  Zhouyue Pi

IPC: H03M13/05 ,  G06F11/10

CPC classification number: H03M13/618 ,  H03M13/033 ,  H03M13/036 ,  H03M13/1137 ,  H03M13/116 ,  H03M13/6516

Abstract: A method constructs a family of low-density-parity-check (LDPC) codes. The method includes identifying a code rate for an LDPC code in the family, identifying a protograph for the LDPC code, and constructing a base matrix for the LDPC code. The base matrix is constructed by replacing each zero in the protograph with a ‘−1’, selecting a corresponding value for an absolute shift for each one in the protograph based on constraining a number of relative shifts per column of the LDPC code to one and increasing a size of a smallest cycle in a graph of the LDPC code, and replacing each one in the protograph with the corresponding value.

Abstract translation: 一种方法构建了一系列低密度奇偶校验（LDPC）码。 该方法包括识别该系列中的LDPC码的码率，识别LDPC码的原型图，以及构造LDPC码的基本矩阵。 基本矩阵是通过用“-1”代替原型图中的每个零来构造的，基于将每个LDPC码的相对位移数量约束为1，为了对原型图中的每一个选择相应的绝对位移值， 增加LDPC码的图形中的最小周期的大小，并将原型图中的每一个替换为相应的值。

公开(公告)号：US08255761B1

公开(公告)日：2012-08-28

申请号：US13482695

申请日：2012-05-29

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.

Abstract translation: 一种用于产生循环冗余校验的方法和电路。 该方法对具有多个信息比特的传输块计算多个循环冗余校验。 基于信息比特的子集来计算多个循环冗余校验中的至少一个循环冗余校验，并且多个信息比特中的至少一个信息比特不在信息比特的所述子集内。 此外，可以基于所有信息比特来计算传输块循环冗余校验。

公开(公告)号：US08238954B2

公开(公告)日：2012-08-07

申请号：US12454531

申请日：2009-05-19

Applicant: Lingjia Liu ,  Jianzhong Zhang ,  Zhouyue Pi

Inventor： Lingjia Liu ,  Jianzhong Zhang ,  Zhouyue Pi

IPC: H04B15/00

CPC classification number: H04W72/082 ,  H04B7/024 ,  H04B7/0417 ,  H04L1/0002 ,  H04L1/0041 ,  H04L25/03968

Abstract: A system and method for inter-cell interference avoidance. A base station is configured to perform interference avoidance. The base station receives feedback information from either a second base station or a subscriber station served by the second base station. The base station selects a codebook vectors or matrices for transmission to subscriber stations based, at least in part, on a portion of the feedback information. The base station is further configured to select which subscriber stations will participate in interference avoidance calculations.

Abstract translation: 一种用于小区间干扰避免的系统和方法。 基站被配置为执行干扰避免。 基站从由第二基站服务的第二基站或用户台接收反馈信息。 至少部分地基于反馈信息的一部分，基站选择用于向订户站发送的码本向量或矩阵。 基站还被配置为选择哪些用户站将参与干扰避免计算。

公开(公告)号：US08204147B2

公开(公告)日：2012-06-19

申请号：US12783235

申请日：2010-05-19

Applicant: Kaushik Josiam ,  Zhouyue Pi ,  Ying Li ,  Hwasun Yoo

Inventor： Kaushik Josiam ,  Zhouyue Pi ,  Ying Li ,  Hwasun Yoo

IPC: H04L27/00

CPC classification number: H04L5/0048 ,  H04L29/0653 ,  H04W72/0413 ,  H04W74/004

Abstract: For use in a wireless communication network, a mobile station configured to determine a preamble sequence from a set of indexed preamble sequences by generating an index of the preamble sequence from a B-bit message is provided. The mobile station is configured to group the B bits of the message into n groups, each group having a substantially equal number of bits. The mobile station is also configured to generate a parity bit from each of the n groups. The mobile station is further configured to determine the index of the preamble sequence based on the n parity bits. The mobile station is still further configured to transmit the preamble sequence corresponding to the index of the preamble sequence. A base station configured to recover the B-bit message using the received signal from the mobile station is also provided.

Abstract translation: 为了在无线通信网络中使用，提供了被配置为通过从B比特消息生成前导码序列的索引来从一组索引的前同步码序列中确定前置码序列的移动台。 移动台被配置为将消息的B比特分组为n组，每组具有基本上相等数量的比特。 移动站还被配置为从n个组中的每一个生成奇偶校验位。 移动站还被配置为基于n个奇偶校验位来确定前导码序列的索引。 移动站还被配置为发送与前同步码序列的索引对应的前同步码序列。 还提供了一种被配置为使用来自移动台的接收信号来恢复B比特消息的基站。

公开(公告)号：US08068457B2

公开(公告)日：2011-11-29

申请号：US12041568

申请日：2008-03-03

Applicant: Zhouyue Pi ,  Farooq Khan ,  Juho Lee

Inventor： Zhouyue Pi ,  Farooq Khan ,  Juho Lee

IPC: H04W4/00 ,  H04B7/204

CPC classification number: H04L5/023 ,  H04B7/0417 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04L1/1692 ,  H04L1/1854 ,  H04L5/0005 ,  H04L5/0053 ,  H04L5/0055 ,  H04L2001/125

Abstract: A mapping scheme between a plurality of control channel element sets and a plurality of acknowledgement channel resource sets is established. Each of the control channel element sets includes at least one control channel element, and each of the acknowledgement channel resource sets includes at least one acknowledgement channel resource. In accordance with a scheduling grant transmitted using a control channel element set selected from the plurality of control channel element sets, a data packet is transmitted via a second node to a first node. Then, an acknowledgement channel message is transmitted via the first node to the second node by using at least one acknowledgement channel resource selected from the acknowledgement channel resource set that correspond to the control channel element set used for transmitting the scheduling grant in accordance with the mapping scheme. The acknowledgement channel message may be one of a positive acknowledgement message and a negative acknowledgement message.

Abstract translation: 建立多个控制信道单元集与多个确认信道资源集之间的映射方案。 每个控制信道单元组包括至少一个控制信道单元，并且每个确认信道资源集包括至少一个确认信道资源。 根据使用从多个控制信道单元集合中选择的控制信道单元集合发送的调度许可，经由第二节点将数据分组发送到第一节点。 然后，通过使用从对应于用于发送调度许可的控制信道单元组的确认信道资源集合中选出的至少一个确认信道资源，经由第一节点将确认信道消息发送到第二节点，该确认信道资源根据映射 方案。 确认信道消息可以是肯定确认消息和否定确认消息之一。