公开(公告)号：US08514766B2

公开(公告)日：2013-08-20

申请号：US12920584

申请日：2009-11-25

申请人： Hanbyul Seo ,  Byoung-Hoon Kim

发明人： Hanbyul Seo ,  Byoung-Hoon Kim

IPC分类号： H04B7/14

CPC分类号： H04B7/15542 ,  H04L1/1812 ,  H04L1/1854 ,  H04L1/1887 ,  H04L1/1893 ,  H04L2001/0097 ,  H04W24/02

摘要： A method for performing a hybrid automatic repeat request (HARQ) by a relay station (RS) in a wireless communication system is provided. The method comprises performing HARQ with a mobile station (MS) by a fixed HARQ period; and performing HARQ with a base station (BS) by a HARQ period series, wherein the HARQ period series comprises a plurality of HARQ period series element (Xk,yk), where (Xk,yk) indicates that when data is transmitted in n-th subframe, an ACK/NACK signal is received in (n+xk)-th subframe and the data is retransmitted in (n+xk+yk)-th subframe when the ACK/NACK signal is a NACK signal, wherein at least one of xk and yk for one HARQ period in the HARQ period series is different from at least one of xk and yk for the other HARQ period in the HARQ period series.

摘要翻译： 提供了一种用于在无线通信系统中由中继站（RS）执行混合自动重传请求（HARQ）的方法。 该方法包括：通过固定的HARQ周期与移动站（MS）进行HARQ; 并且通过HARQ周期序列与基站（BS）进行HARQ，其中，所述HARQ周期序列包括多个HARQ周期序列元素（Xk，yk），其中，（Xk，yk）表示当数据以n- 在第（n + xk）个子帧中接收到ACK / NACK信号，并且当ACK / NACK信号是NACK信号时，在（n + xk + yk）子帧中重发数据，其中至少一个 在HARQ周期序列中的一个HARQ周期的xk和yk的xk和yk与HARQ周期序列中的其他HARQ周期的xk和yk中的至少一个不同。

公开(公告)号：US20100041409A1

公开(公告)日：2010-02-18

申请号：US12453065

申请日：2009-04-28

申请人： Byoung-Hoon Kim ,  Hanbyul Seo ,  Hyungtae Kim

发明人： Byoung-Hoon Kim ,  Hanbyul Seo ,  Hyungtae Kim

IPC分类号： H04W72/04

CPC分类号： H04W52/26 ,  H04L1/0002 ,  H04L1/0026 ,  H04W52/241 ,  H04W52/40

摘要： A method of transmitting data in a multi-cell cooperative wireless communication system is provided. The method includes dividing the data into common data and private data, determining a transmission rate and/or a transmission power of the common data and the private data, respectively and transmitting the common data and the private data at the determined transmission rate and/or transmission power. It is possible to mitigate inter-cell interference and improve the performance of the system.

摘要翻译： 提供了一种在多小区协作无线通信系统中发送数据的方法。 该方法包括将数据划分为公共数据和专用数据，分别确定公共数据和专用数据的传输速率和/或传输功率，并以所确定的传输速率和/或 传输功率 可以减轻小区间干扰并提高系统的性能。

公开(公告)号：US08761690B2

公开(公告)日：2014-06-24

申请号：US12453439

申请日：2009-05-11

申请人： Byoung-Hoon Kim ,  Hanbyul Seo

发明人： Byoung-Hoon Kim ,  Hanbyul Seo

IPC分类号： H04B1/38

CPC分类号： H04B7/2606 ,  H04B7/15557 ,  H04W88/04

摘要： A method of operating a relay station in a wireless communication system is provided. The method comprises the steps of determining a relay mode and transmitting a signal, received from a source station, to a destination station in the determined relay mode, wherein the relay mode is determined based on at least one of requirements for quality of service (QoS) of traffic, the number of times in which attempts are made to transmit a packet, and an amount of packets stored in a buffer of the relay station.

摘要翻译： 提供了一种在无线通信系统中操作中继站的方法。 该方法包括以确定的中继模式确定中继模式并将从源站接收的信号发送到目的地站的步骤，其中基于服务质量（QoS）的至少一个要求来确定中继模式 ），尝试发送分组的次数以及存储在中继站的缓冲器中的分组量。

公开(公告)号：US08160013B2

公开(公告)日：2012-04-17

申请号：US12453065

申请日：2009-04-28

申请人： Byoung-Hoon Kim ,  Hanbyul Seo ,  Hyungtae Kim

发明人： Byoung-Hoon Kim ,  Hanbyul Seo ,  Hyungtae Kim

IPC分类号： H04W72/04

CPC分类号： H04W52/26 ,  H04L1/0002 ,  H04L1/0026 ,  H04W52/241 ,  H04W52/40

摘要： A method of transmitting data in a multi-cell cooperative wireless communication system is provided. The method includes dividing the data into common data and private data, determining a transmission rate and/or a transmission power of the common data and the private data, respectively and transmitting the common data and the private data at the determined transmission rate and/or transmission power. It is possible to mitigate inter-cell interference and improve the performance of the system.

摘要翻译： 提供了一种在多小区协作无线通信系统中发送数据的方法。 该方法包括将数据划分为公共数据和私有数据，分别确定公共数据和专用数据的传输速率和/或传输功率，并以所确定的传输速率和/或传送公共数据和私有数据 传输功率 可以减轻小区间干扰并提高系统的性能。

公开(公告)号：US20110261746A1

公开(公告)日：2011-10-27

申请号：US12920584

申请日：2009-11-25

申请人： Hanbyul Seo ,  Byoung-Hoon Kim

发明人： Hanbyul Seo ,  Byoung-Hoon Kim

IPC分类号： H04B7/14

CPC分类号： H04B7/15542 ,  H04L1/1812 ,  H04L1/1854 ,  H04L1/1887 ,  H04L1/1893 ,  H04L2001/0097 ,  H04W24/02

摘要： A method for performing a hybrid automatic repeat request (HARQ) by a relay station (RS) in a wireless communication system is provided. The method comprises performing HARQ with a mobile station (MS) by a fixed HARQ period; and performing HARQ with a base station (BS) by a HARQ period series, wherein the HARQ period series comprises a plurality of HARQ period series element (Xk,yk), where (Xk,yk) indicates that when data is transmitted in n-th subframe, an ACK/NACK signal is received in (n−xk)-th subframe and the data is retransmitted in (n+xk+yk)-th subframe when the ACK/NACK signal is a NACK signal, wherein at least one of xk and yk for one HARQ period in the HARQ period series is different from at least one of xk and yk for the other HARQ period in the HARQ period series.

摘要翻译： 提供了一种用于在无线通信系统中由中继站（RS）执行混合自动重传请求（HARQ）的方法。 该方法包括：通过固定的HARQ周期与移动站（MS）进行HARQ; 并且通过HARQ周期序列与基站（BS）进行HARQ，其中，所述HARQ周期序列包括多个HARQ周期序列元素（Xk，yk），其中，（Xk，yk）表示当数据以n- 在第（n-xk）个子帧中接收到ACK / NACK信号，并且当ACK / NACK信号是NACK信号时，在（n + xk + yk）子帧中重发数据，其中至少一个 在HARQ周期序列中的一个HARQ周期的xk和yk的xk和yk与HARQ周期序列中的其他HARQ周期的xk和yk中的至少一个不同。

公开(公告)号：US20100035541A1

公开(公告)日：2010-02-11

申请号：US12453439

申请日：2009-05-11

申请人： Byoung-Hoon Kim ,  Hanbyul Seo

发明人： Byoung-Hoon Kim ,  Hanbyul Seo

IPC分类号： H04B17/02

CPC分类号： H04B7/2606 ,  H04B7/15557 ,  H04W88/04

摘要： A method of operating a relay station in a wireless communication system is provided. The method comprises the steps of determining a relay mode and transmitting a signal, received from a source station, to a destination station in the determined relay mode, wherein the relay mode is determined based on at least one of requirements for quality of service (QoS) of traffic, the number of times in which attempts are made to transmit a packet, and an amount of packets stored in a buffer of the relay station.

摘要翻译： 提供了一种在无线通信系统中操作中继站的方法。 该方法包括以确定的中继模式确定中继模式并将从源站接收的信号发送到目的地站的步骤，其中基于服务质量（QoS）的至少一个要求来确定中继模式 ），尝试发送分组的次数以及存储在中继站的缓冲器中的分组量。

公开(公告)号：US08665799B2

公开(公告)日：2014-03-04

申请号：US11853704

申请日：2007-09-11

申请人： Durga Prasad Malladi ,  Juan Montojo ,  Junyi Li ,  Byoung-Hoon Kim

发明人： Durga Prasad Malladi ,  Juan Montojo ,  Junyi Li ,  Byoung-Hoon Kim

IPC分类号： H04W4/00 ,  H04W72/00

CPC分类号： H04W56/001 ,  H04B1/713 ,  H04J11/0069 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0064 ,  H04L27/2656 ,  H04W48/12 ,  H04W48/16

摘要： Techniques for transmitting synchronization signals to assist user equipments (UEs) perform cell searches are described. In one design, a base station for a cell may generate and transmit a primary synchronization signal and a secondary synchronization signal, which may be used by the UEs for initial cell search at power up. The base station may also generate and transmit one or more beacon signals, which may be used by the UEs for neighbor cell search to detect for neighbor cells. The number of beacon signals to transmit and the set of subcarriers usable for each beacon signal may be determined based on the system bandwidth. Each beacon signal may be mapped to one subcarrier in the set of subcarriers in each beacon symbol period. This one subcarrier may be determined based on a beacon hopping pattern or a beacon code and may be dependent on a cell identifier (ID).

摘要翻译： 描述用于发送同步信号以辅助用户设备（UE）执行小区搜索的技术。 在一种设计中，用于小区的基站可以生成并发送主同步信号和辅同步信号，UE可以在加电时用于初始小区搜索。 基站还可以生成和发送一个或多个信标信号，其可以由UE用于相邻小区搜索以检测相邻小区。 可以基于系统带宽来确定要发送的信标信号的数量和可用于每个信标信号的子载波的集合。 每个信标信号可以被映射到每个信标符号周期中的子载波集合中的一个子载波。 可以基于信标跳变模式或信标代码来确定该一个子载波，并且可以依赖于小区标识符（ID）。

公开(公告)号：US08565184B2

公开(公告)日：2013-10-22

申请号：US13202537

申请日：2010-02-19

申请人： Han-Byul Seo ,  Byoung-Hoon Kim

发明人： Han-Byul Seo ,  Byoung-Hoon Kim

IPC分类号： H04B7/14 ,  H04B7/208 ,  H04J1/10 ,  H04J4/00 ,  H04W4/00 ,  H04Q11/02

CPC分类号： H04W72/04 ,  H04B7/15557 ,  H04L5/0044 ,  H04L5/0048

摘要： The present invention relates to a method and to an apparatus for transmitting/receiving data in a relay communication system. The method comprises the steps of: setting, as a guard band, the first predetermined number of symbol transmission slots of a data transmission period in a subframe resource element of a downlink channel constituted by a control signal transmission period to which a control signal is allocated and the data transmission period to which downlink data is allocated; allocating reference signals to symbols of the data transmission period; puncturing the symbols corresponding to the guard band from among the symbols to which said reference signals are allocated; and transmitting signals to which said reference signals are allocated.

摘要翻译： 本发明涉及在中继通信系统中发送/接收数据的方法和装置。 该方法包括以下步骤：将由控制信号分配到的控制信号发送周期构成的下行链路信道的子帧资源元素中的数据发送周期的第一预定数量的符号发送时隙 和分配下行链路数据的数据传输周期; 将参考信号分配给数据传输周期的符号; 从分配了所述参考信号的符号中删除与保护频带对应的符号; 以及发送分配了所述参考信号的信号。

公开(公告)号：US08300582B2

公开(公告)日：2012-10-30

申请号：US12439727

申请日：2007-10-02

申请人： Durga Prasad Malladi ,  Byoung-Hoon Kim

发明人： Durga Prasad Malladi ,  Byoung-Hoon Kim

IPC分类号： H04W4/00

CPC分类号： H04L1/1671 ,  H04L1/1664 ,  H04L5/023

摘要： Techniques for transmitting acknowledgement (ACK) information in a wireless communication system are described. The system supports data transmission to multiple user equipments (UEs) on the same downlink resources with spatial division multiple access (SDMA). A base station sends a data transmission with multiple (M) layers to M UEs. The downlink resources used for the data transmission are associated with ACK resources used to send ACK information for the data transmission. The ACK resources may be partitioned into M portions, e.g., based on frequency division multiplexing (FDM). Each of the M layers is associated with a respective portion of the ACK resources. A recipient UE for each layer sends ACK for that layer on the associated portion of the ACK resources. For each ACK resource portion, one or more pilot symbols may be sent on one or more resource elements, and ACK symbols may be sent on remaining resource elements.

摘要翻译： 描述用于在无线通信系统中发送确认（ACK）信息的技术。 该系统支持使用空分多址（SDMA）在相同下行链路资源上向多个用户设备（UE）传输数据。 基站向M个UE发送具有多个（M）层的数据传输。 用于数据传输的下行链路资源与用于发送用于数据传输的ACK信息的ACK资源相关联。 ACK资源可以被划分为M个部分，例如基于频分复用（FDM）。 每个M层与ACK资源的相应部分相关联。 每个层的接收者UE在ACK资源的相关部分上为该层发送ACK。 对于每个ACK资源部分，可以在一个或多个资源元素上发送一个或多个导频符号，并且可以在剩余的资源元素上发送ACK符号。

公开(公告)号：US08265209B2

公开(公告)日：2012-09-11

申请号：US11553296

申请日：2006-10-26

申请人： Byoung-Hoon Kim

发明人： Byoung-Hoon Kim

IPC分类号： H03D1/04

CPC分类号： H04B7/04 ,  H04L25/0204 ,  H04L25/0228

摘要： Techniques for performing channel and noise estimation for a MIMO transmission sent from multiple transmit antennas to multiple receive antennas are described. Samples are obtained from the receive antennas. For a first scheme, channel estimates are derived by correlating the samples with at least one pilot sequence, and signal, noise and interference statistics are also estimated based on the samples. For a second scheme, total received energy as well as signal and interference energy are estimated based on the samples. Noise is then estimated based on the estimated total received energy and the estimated signal and interference energy. For a third scheme, signal and on-time interference statistics are estimated based on the samples. Noise and multipath interference statistics are also estimated based on the samples. Signal, noise and interference statistics are then estimated based on the estimated signal and on-time interference statistics and the estimated noise and multipath interference statistics.

摘要翻译： 描述用于对从多个发射天线发送到多个接收天线的MIMO传输进行信道和噪声估计的技术。 从接收天线获得样本。 对于第一方案，通过将样本与至少一个导频序列相关而导出信道估计，并且信号，噪声和干扰统计也是基于样本估计的。 对于第二种方案，基于样本估计总接收能量以及信号和干扰能量。 然后基于估计的总接收能量和估计的信号和干扰能量来估计噪声。 对于第三种方案，基于样本估计信号和准时干扰统计。 噪声和多径干扰统计也根据样本进行估计。 然后，基于估计的信号和准时干扰统计以及估计的噪声和多径干扰统计来估计信号，噪声和干扰统计。