Method and system for resource allocation for OFDM wireless networks
    1.
    发明授权
    Method and system for resource allocation for OFDM wireless networks 有权
    OFDM无线网络资源分配方法与系统

    公开(公告)号:US07974353B2

    公开(公告)日:2011-07-05

    申请号:US11836725

    申请日:2007-08-09

    IPC分类号: H04K1/10 H04L27/28

    摘要: According to an embodiment, the present invention provides a method for providing resource allocation in a wireless communication network. The method includes providing an access provider that is configured to perform orthogonal frequency division multiplexing (OFDM). The access provider is configured to allocate transmission resources. The method also includes providing a first plurality of terminals that are wirelessly connected to the access provider. The method further includes assigning the first plurality of terminals to a first scheduling group that is associated with a first plurality of resources. The first plurality of resources includes at least a first resource. The method additionally includes providing a second plurality of terminals that are wirelessly connected to the access provider. The method further includes assigning the second plurality of terminals to a second scheduling group that is associated with a second plurality of resources.

    摘要翻译: 根据实施例,本发明提供了一种在无线通信网络中提供资源分配的方法。 该方法包括提供被配置为执行正交频分复用(OFDM)的接入提供商。 接入提供者被配置为分配传输资源。 该方法还包括提供无线连接到接入提供商的第一多个终端。 该方法还包括将第一多个终端分配给与第一多个资源相关联的第一调度组。 第一多个资源包括至少第一资源。 该方法还包括提供无线连接到接入提供商的第二多个终端。 该方法还包括将第二多个终端分配给与第二多个资源相关联的第二调度组。

    Method and system for managing radio resources for soft handoff in an OFDMA-based communication system
    2.
    发明授权
    Method and system for managing radio resources for soft handoff in an OFDMA-based communication system 有权
    在基于OFDMA的通信系统中管理用于软切换的无线电资源的方法和系统

    公开(公告)号:US08085711B2

    公开(公告)日:2011-12-27

    申请号:US11844332

    申请日:2007-08-23

    IPC分类号: H04W4/00

    CPC分类号: H04W36/18

    摘要: A method and system is disclosed for managing resource within a predetermined soft handoff group in an OFDM based telecommunications system. Logical radio resources are separated into at least one set to support the soft handoff group and at least one set for supporting normal communication traffic. At least one physical radio resource is identified for each logical radio resource in the set for supporting the SHOG according to a predetermined mapping function so as to minimize resource collision.

    摘要翻译: 公开了用于在基于OFDM的电信系统中管理预定软切换组内的资源的方法和系统。 逻辑无线电资源被分成至少一个集合以支持软切换组和至少一个用于支持正常通信业务的集合。 根据预定的映射函数,为集合中的每个逻辑无线电资源识别至少一个物理无线电资源以支持SHOG,以便最小化资源冲突。

    Power allocation in a MIMO system without channel state information feedback
    3.
    发明授权
    Power allocation in a MIMO system without channel state information feedback 有权
    无信道状态信息反馈的MIMO系统中的功率分配

    公开(公告)号:US07983352B2

    公开(公告)日:2011-07-19

    申请号:US11532490

    申请日:2006-09-15

    IPC分类号: H04L1/02

    CPC分类号: H04W52/42 H04B7/04 H04B7/0669

    摘要: A telecommunication network component, comprising: a memory configured to store instructions, and a processor configured to execute the stored instructions, the instructions comprising: determining a plurality of power allocation adjustments for signals transmitted via an antenna array that promotes decision-feedback detection without using channel state information, and outputting the power allocation adjustments to the array. Also disclosed is a power allocation method comprising: determining a power allocation scheme that promotes decision-feedback detection in a multiple-input and multiple-output system without using channel state information, and implementing the power allocation scheme on an antenna array by modifying an adjustment for each of a plurality of antennas in the array.

    摘要翻译: 一种电信网络组件,包括:被配置为存储指令的存储器和被配置为执行所存储的指令的处理器,所述指令包括:确定用于经由天线阵列发送的信号的多个功率分配调整,所述天线阵列促进判决反馈检测而不使用 信道状态信息,并且将功率分配调整输出到阵列。 还公开了一种功率分配方法,包括:在不使用信道状态信息的情况下,确定促进多输入和多输出系统中的判决反馈检测的功率分配方案,以及通过修改调整来实现天线阵列上的功率分配方案 对于阵列中的多个天线中的每一个。

    Adaptive HARQ in an OFDMA based communication system
    4.
    发明授权
    Adaptive HARQ in an OFDMA based communication system 有权
    在基于OFDMA的通信系统中的自适应HARQ

    公开(公告)号:US07957345B2

    公开(公告)日:2011-06-07

    申请号:US11685497

    申请日:2007-03-13

    IPC分类号: H04W4/00

    摘要: The present invention discloses constructs and methods for transmitting a HARQ re-transmission in an adaptive manner in a wireless communication system. The system of the present invention discloses: scheduling the re-transmission of a data packet, based on decoding results from a receiver; determining a plurality of parameters for re-transmission in an adaptive manner; sending an assignment message if required; using a plurality of fields in the assignment message for re-transmission to indicate the plurality of parameters in the re-transmission; using a MACID field in the assignment message for re-transmission to indicate a target mobile station for the re-transmission; transmitting a data packet for the re-transmission; and decoding the data packet at the receiver to determine if a further need of re-transmission exists.

    摘要翻译: 本发明公开了一种在无线通信系统中以自适应方式发送HARQ再传输的结构和方法。 本发明的系统基于来自接收机的解码结果来调度数据包的重发送; 以自适应方式确定用于重传的多个参数; 如果需要,发送转发消息; 在分配消息中使用多个字段进行重新发送以指示重传中的多个参数; 在所述分配消息中使用MACID字段进行重新发送以指示用于所述重新发送的目标移动台; 发送用于重传的数据分组; 并且在接收机处对数据分组进行解码,以确定是否存在再次传输的进一步需要。

    Method and apparatus for assigning resources in a wireless system
    5.
    发明授权
    Method and apparatus for assigning resources in a wireless system 有权
    在无线系统中分配资源的方法和装置

    公开(公告)号:US08265029B2

    公开(公告)日:2012-09-11

    申请号:US12135599

    申请日:2008-06-09

    IPC分类号: H04W4/00

    摘要: A method and apparatus of signaling radio resource allocation in a wireless communication system includes the time-frequency resources into multiple regions; defining a channel tree within at least one region, wherein the channel tree has base nodes which are determined using the area of the region and the area of a base node; determining a channel identifier assignment for a mobile station, wherein the channel identifier corresponds to a collection of base nodes from a channel tree; transmitting an indication of the determined channel identifier to the mobile station; and transmitting a packet to a mobile station or receiving a packet from the mobile station using the physical time-frequency resources, which correspond to the channel identifier.

    摘要翻译: 在无线通信系统中信令无线电资源分配的方法和装置包括多个区域中的时间 - 频率资源; 在至少一个区域内定义信道树,其中信道树具有使用区域的区域和基本节点的区域确定的基本节点; 确定用于移动台的信道标识符分配,其中所述信道标识符对应于来自信道树的基本节点的集合; 向所述移动台发送所确定的信道标识符的指示; 并且使用与所述信道标识符对应的物理时频资源,向移动站发送分组或者从移动台接收分组。

    Method and Apparatus for Assigning Resources in a Wireless System with Multiple Regions
    6.
    发明申请
    Method and Apparatus for Assigning Resources in a Wireless System with Multiple Regions 审中-公开
    用于在具有多个区域的无线系统中分配资源的方法和装置

    公开(公告)号:US20120120912A1

    公开(公告)日:2012-05-17

    申请号:US13360499

    申请日:2012-01-27

    IPC分类号: H04W72/04

    摘要: A method and apparatus of signaling radio resource allocation in a wireless communication system includes transmitting at least one region boundary to a mobile station indicating a division of the time-frequency resources into at least two regions, determining a time-frequency resource assignment for the mobile station, transmitting an indication of the determined time-frequency resource to the mobile station in the same region as the determined time-frequency resource, and transmitting a packet to the mobile station using the physical time-frequency resources corresponding to the determined time-frequency resource.

    摘要翻译: 一种在无线通信系统中信令无线电资源分配的方法和装置包括向移动站发送指示将时间 - 频率资源划分为至少两个区域的至少一个区域边界,确定移动站的时间 - 频率资源分配 在与确定的时间 - 频率资源相同的区域中向移动台发送所确定的时间 - 频率资源的指示,并且使用与所确定的时间频率相对应的物理时间 - 频率资源向移动站发送分组 资源。

    Beamforming with imperfect channel state information
    7.
    发明授权
    Beamforming with imperfect channel state information 有权
    波束形成与不完美的信道状态信息

    公开(公告)号:US08112038B2

    公开(公告)日:2012-02-07

    申请号:US11532488

    申请日:2006-09-15

    IPC分类号: H04B1/00

    摘要: Disclosed herein is a system and method for downlink beamforming that takes into account imperfect channel state information (CSI) at the transmitter when determining the steering vector used in the beamforming process. The steering vector is calculated to increase the ratio of the average power of a desired signal component to the sum of the interference power of other wireless terminals, referred to as the signal-to-leakage ratio. By accounting for imperfect CSI when calculating the steering vector, the bit-error rate for a given signal-to-noise ratio is decreased. Also disclosed is a power allocation method that improves performance of the system by increasing the signal-to-interference-plus-noise ratio for all of the wireless terminals currently communicating with the base station. The power allocation similarly decreases the bit-error rate for a given signal-to-noise ratio, especially at high signal-to-noise ratios.

    摘要翻译: 这里公开了一种用于下行链路波束成形的系统和方法,其在确定在波束形成处理中使用的导向向量时考虑到发射机处的不完美信道状态信息(CSI)。 计算导向矢量以增加所需信号分量的平均功率与其它无线终端的干扰功率之和的比率,称为信号与泄漏比。 通过在计算导向矢量时考虑不完善的CSI,给定信噪比的误码率降低。 还公开了一种功率分配方法,其通过增加当前与基站通信的所有无线终端的信号与干扰加噪声比来提高系统的性能。 功率分配类似地降低给定信噪比的比特误码率,特别是在高信噪比下。

    Method and apparatus for enabling soft handoff in an OFDMA-based communication system
    9.
    发明授权
    Method and apparatus for enabling soft handoff in an OFDMA-based communication system 有权
    在基于OFDMA的通信系统中实现软切换的方法和装置

    公开(公告)号:US08565773B2

    公开(公告)日:2013-10-22

    申请号:US11685037

    申请日:2007-03-12

    IPC分类号: H04W36/00

    CPC分类号: H04W36/18

    摘要: A method of enabling a soft handoff in a communication system, wherein the communication system includes a plurality of sectors and each of the plurality of sectors includes at least one base station is disclosed. The method includes: providing at least one mobile station; setting identical resources for serving the mobile station from each of the plurality of base stations in each sector; designating at least a plurality of base stations in at least one sector to participate a soft handoff; and performing a soft handoff.

    摘要翻译: 一种在通信系统中实现软切换的方法,其中所述通信系统包括多个扇区,并且所述多个扇区中的每一个包括至少一个基站。 该方法包括:提供至少一个移动站; 设置用于从每个扇区中的所述多个基站中的每一个为所述移动站服务的相同资源; 在至少一个扇区中指定至少多个基站以参与软切换; 并执行软切换。

    Method and apparatus for interference mitigation in an OFDMA-based communication system
    10.
    发明授权
    Method and apparatus for interference mitigation in an OFDMA-based communication system 有权
    在基于OFDMA的通信系统中用于干扰减轻的方法和装置

    公开(公告)号:US08005175B2

    公开(公告)日:2011-08-23

    申请号:US11684931

    申请日:2007-03-12

    IPC分类号: H03D1/04

    摘要: A method and apparatus for mitigating inter-cell interference in an OFDMA-based wireless communication system is disclosed. The method includes the steps of, providing at least a frame in a base station to a plurality of mobile stations; dividing the frame into a plurality of subcarriers; assigning a demarcation line within the frame to divide the plurality of subcarriers into a first zone and a second zone; defining a time reuse parameter for the plurality of subcarriers within the first zone; defining a frequency reuse parameter for the plurality of subcarriers within the first zone; and loading the plurality of subcarriers within the first zone according the time reuse parameter and the frequency parameter.

    摘要翻译: 公开了一种用于减轻基于OFDMA的无线通信系统中的小区间干扰的方法和装置。 该方法包括以下步骤:向多个移动台提供基站中的至少一帧; 将帧划分成多个子载波; 在所述帧内分配分界线以将所述多个子载波分成第一区和第二区; 为所述第一区域内的所述多个子载波定义时间重用参数; 为所述第一区域内的所述多个子载波定义频率重用参数; 以及根据所述时间重用参数和所述频率参数加载所述第一区域内的所述多个子载波。