Beacon assisted cell search in a wireless communication system
    2.
    发明授权
    Beacon assisted cell search in a wireless communication system 有权
    信标在无线通信系统中辅助小区搜索

    公开(公告)号:US08665799B2

    公开(公告)日:2014-03-04

    申请号:US11853704

    申请日:2007-09-11

    IPC分类号: H04W4/00 H04W72/00

    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)。

    Method for allocating reference signals of a backhaul link in a relay communication system, and method and apparatus for transmitting/receiving data using same
    3.
    发明授权
    Method for allocating reference signals of a backhaul link in a relay communication system, and method and apparatus for transmitting/receiving data using same 有权
    用于在中继通信系统中分配回程链路的参考信号的方法,以及使用它们发送/接收数据的方法和装置

    公开(公告)号:US08565184B2

    公开(公告)日:2013-10-22

    申请号:US13202537

    申请日:2010-02-19

    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。

    Method for performing HARQ for relay station
    4.
    发明授权
    Method for performing HARQ for relay station 有权
    中继站执行HARQ的方法

    公开(公告)号:US08514766B2

    公开(公告)日:2013-08-20

    申请号:US12920584

    申请日:2009-11-25

    IPC分类号: H04B7/14

    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。

    Uplink ACK transmission for SDMA in a wireless communication system
    5.
    发明授权
    Uplink ACK transmission for SDMA in a wireless communication system 有权
    在无线通信系统中用于SDMA的上行链路ACK传输

    公开(公告)号:US08300582B2

    公开(公告)日:2012-10-30

    申请号:US12439727

    申请日:2007-10-02

    IPC分类号: H04W4/00

    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。

    Method and apparatus for channel and noise estimation
    6.
    发明授权
    Method and apparatus for channel and noise estimation 有权
    用于信道和噪声估计的方法和装置

    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

    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。

    FEMTO BASE STATION AND METHOD FOR MANAGING RESOURCE THEREOF
    7.
    发明申请
    FEMTO BASE STATION AND METHOD FOR MANAGING RESOURCE THEREOF 有权
    FEMTO基站及其资源管理方法

    公开(公告)号:US20120190374A1

    公开(公告)日:2012-07-26

    申请号:US13381640

    申请日:2009-06-30

    IPC分类号: H04W72/04 H04W24/00

    CPC分类号: H04W72/085 H04W84/045

    摘要: A method for managing radio resource of a femto cell includes: providing, by the femto cell, a service to one or more UEs by using most of pre-set radio resource; receiving measurement results from the one or more UEs; determining whether or not one or more neighbor femto cells are closely located nearby based on the measurement results; and if it is determined that neighbor femto cells are closely located nearby, reducing the pre-set radio resource into a small radio resource and providing a service with the small radio resource.

    摘要翻译: 一种用于管理毫微微小区的无线电资源的方法包括:通过使用大多数预设无线电资源,由毫微微小区向一个或多个UE提供服务; 从所述一个或多个UE接收测量结果; 基于所述测量结果确定一个或多个相邻毫微微小区是否位于附近; 并且如果确定相邻毫微微小区位于附近,则将预置无线电资源减少为小型无线电资源并向小型无线电资源提供服务。

    SCHEDULING METHOD AND APPARATUS IN A RELAY COMMUNICATION SYSTEM
    8.
    发明申请
    SCHEDULING METHOD AND APPARATUS IN A RELAY COMMUNICATION SYSTEM 有权
    继电器通信系统中的调度方法和装置

    公开(公告)号:US20120140699A1

    公开(公告)日:2012-06-07

    申请号:US13389437

    申请日:2010-07-30

    IPC分类号: H04W72/04 H04W88/04

    CPC分类号: H04W72/1252 H04W84/047

    摘要: Disclosed are a packet scheduling method and apparatus in a relay network. A scheduling method of a relay station in a relay communication system includes: receiving information regarding an amount of generated data to be transmitted to a user from a base station; estimating the size of a queue of the base station storing the data to be transmitted to the user based on the amount of generated data received from the base station; obtaining the size of a virtual queue in which overall data to be transmitted to a user with reference to the estimated size of the queue of the base station and the size of a queue of the relay station storing data to be transmitted to a user; performing scheduling to allocate resource based on the size of the virtual queue; and transmitting data to the user based on the scheduling results.

    摘要翻译: 公开了中继网络中的分组调度方法和装置。 中继通信系统中的中继站的调度方法包括:从基站接收关于发送给用户的生成数据量的信息; 基于从基站接收的生成数据的量,估计存储要发送给用户的数据的基站的队列的大小; 参考基站的队列的估计大小和存储要发送给用户的数据的中继站的队列的大小,获得要发送给用户的总体数据的虚拟队列的大小; 执行调度以基于所述虚拟队列的大小来分配资源; 并根据调度结果向用户发送数据。

    METHOD FOR ALLOCATING REFERENCE SIGNALS OF A BACKHAUL LINK IN A RELAY COMMUNICATION SYSTEM, AND METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING DATA USING SAME
    9.
    发明申请
    METHOD FOR ALLOCATING REFERENCE SIGNALS OF A BACKHAUL LINK IN A RELAY COMMUNICATION SYSTEM, AND METHOD AND APPARATUS FOR TRANSMITTING/RECEIVING DATA USING SAME 有权
    用于在继电器通信系统中分配反向链路的参考信号的方法,以及用于发送/接收数据的方法和装置

    公开(公告)号:US20120134316A1

    公开(公告)日:2012-05-31

    申请号:US13202537

    申请日:2010-02-19

    IPC分类号: H04W72/04 H04J3/00 H04B7/14

    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。

    METHOD FOR ALLOCATING BACKHAUL LINK RESOURCES IN RELAY COMMUNICATION SYSTEM, AND METHOD & APPARATUS FOR TRANSMITTING & RECEIVING DATA USING SAME
    10.
    发明申请
    METHOD FOR ALLOCATING BACKHAUL LINK RESOURCES IN RELAY COMMUNICATION SYSTEM, AND METHOD & APPARATUS FOR TRANSMITTING & RECEIVING DATA USING SAME 有权
    用于在继电器通信系统中分配反向链路资源的方法,以及用于发送和接收数据的方法和装置

    公开(公告)号:US20110292865A1

    公开(公告)日:2011-12-01

    申请号:US13148069

    申请日:2010-02-09

    IPC分类号: H04W88/04 H04W72/04 H04L27/28

    摘要: The present invention relates to a method and an apparatus for transmitting and receiving data in a relay communication system. The method and the apparatus allocate resources by dividing backhaul link resources into plural partitions, and then transmit and receive data. The data transmission method of the invention comprises the steps of: allocating a certain number of initial OFDM symbol transmission periods in a sub-frame of a downlink channel to a control channel that transfers the control information of the terminal, wherein data is transmitted from a base station to a relay or terminal through the downlink channel; dividing the resource blocks excluded from the control channel of the sub-frame into at least two partitions based on frequency domain; determining whether or not each divided partition is allocated to the relay or terminal as resources; and allocating data to the determined partition in order to transmit the partition to the relay or terminal through the downlink channel, wherein the partition determined for the allocation of resources to the relay is allocated to the relay through time division multiplexing (TDM) or frequency division multiplexing of both control and data channels of the relay.

    摘要翻译: 本发明涉及在中继通信系统中发送和接收数据的方法和装置。 该方法和装置通过将回程链路资源分成多个分区,然后发送和接收数据来分配资源。 本发明的数据传输方法包括以下步骤:在下行链路信道的子帧中将一定数量的初始OFDM符号传输周期分配给传送终端的控制信息的控制信道,其中数据从 基站通过下行链路信道到中继或终端; 将从子帧的控制信道排除的资源块划分为基于频域的至少两个分区; 确定每个划分的分区是否作为资源分配给中继站或终端; 并且将数据分配给所确定的分区,以通过下行链路信道向中继站或终端发送分区,其中通过时分多路复用(TDM)或分频将分配给中继的资源确定的分区分配给中继 继电器的控制和数据通道的复用。