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    • 1. 发明申请
    • Communication Systems
    • 通讯系统
    • US20100142436A1
    • 2010-06-10
    • US12649096
    • 2009-12-29
    • Michael John Beems HartYuefeng ZhouDorin ViorelChenxi ZhuMichiharu NakamuraMasahiro WatanabeHiroshi FujitaMakoto Yoshida
    • Michael John Beems HartYuefeng ZhouDorin ViorelChenxi ZhuMichiharu NakamuraMasahiro WatanabeHiroshi FujitaMakoto Yoshida
    • H04B7/14
    • H04W28/16H04B7/15507H04B7/2606H04L5/0007H04L5/0032H04L5/0048H04L25/0226H04L27/2655H04L27/2692H04W48/08H04W84/047
    • A transmission method for use in a multi-hop wireless communication system is provided. The system includes a source apparatus, a destination apparatus and one or more intermediate apparatuses. The system has access to at least one predetermined transmission introduction sequence and also has access to a time-frequency format for use in assigning available transmission frequency bandwidth during a discrete transmission interval, said format defining a plurality of transmission windows within such an interval. Each window occupies a different part of that interval and has a frequency bandwidth profile within said available transmission frequency bandwidth over its part of that interval. Each said window being assignable for such a transmission interval to at least one of said apparatuses for use in transmission. The method includes, when transmitting a message with a preamble in a particular transmission interval, transmitting the preamble in a first transmission window of that transmission interval. Furthermore, the method includes transmitting the transmission introduction sequence in a second transmission window of that transmission interval other than the first transmission window preferably as control information for use by at least one said intermediate apparatus or the destination apparatus.
    • 提供了一种用于多跳无线通信系统的传输方法。 该系统包括源设备,目的地设备和一个或多个中间设备。 该系统可以访问至少一个预定的传输介绍序列,并且还可以访问用于在离散传输间隔期间分配可用传输频率带宽的时间 - 频率格式,所述格式在这样的间隔内定义多个传输窗口。 每个窗口占据该间隔的不同部分,并且在该间隔的部分内在所述可用传输频率带宽内具有频带配置。 每个所述窗口可分配给用于传输的所述设备中的至少一个的这种传输间隔。 该方法包括:在特定发送间隔中发送具有前导码的消息时,在该发送间隔的第一发送窗口中发送前导码。 此外,该方法包括:在第一传输窗口之外的传输间隔的第二传输窗口中优选地传输传输介绍序列作为至少一个所述中间设备或目的设备使用的控制信息。
    • 3. 发明申请
    • Communication Systems
    • 通讯系统
    • US20100074164A1
    • 2010-03-25
    • US12513805
    • 2007-07-31
    • Michael John Beems HartYuefeng ZhouDorin ViorelChenzi ZhuMichiharu NakamuraMasahiro WatanabeHiroshi FujitaMakoto Yoshida
    • Michael John Beems HartYuefeng ZhouDorin ViorelChenzi ZhuMichiharu NakamuraMasahiro WatanabeHiroshi FujitaMakoto Yoshida
    • H04B7/14
    • H04W52/46H04L1/0003H04L1/0009H04L1/0028H04L1/0029H04L2001/0097
    • A method for transmission of information about downlink and uplink parameters of a intermediate apparatus link in a multi-hop wireless communication system, the system comprising a first node apparatus, a second node apparatus and one or more intermediate apparatuses, each said apparatus being operable to transmit and receive information along a series of links forming a communication path for downlink and uplink communication, the communication path extending between the first node and second node apparatuses via the or each intermediate apparatus, each link comprising either a first node link between the first node apparatus and a said intermediate apparatus or an intermediate apparatus link between a said intermediate apparatus and a said apparatus which is not the first node apparatus, and the system having access to a minimum allocation unit for allocating time and transmission frequency bandwidth, the method comprising: obtaining values of downlink and uplink parameters for a particular intermediate apparatus link; mapping both values onto a single minimum allocation unit and transmitting them towards the first node apparatus.
    • 一种用于在多跳无线通信系统中传输关于中间设备链路的下行链路和上行链路参数的信息的方法,所述系统包括第一节点设备,第二节点设备和一个或多个中间设备,每个所述设备可操作为 沿着形成用于下行链路和上行链路通信的通信路径的一系列链路发送和接收信息,所述通信路径经由或每个中间设备在第一节点和第二节点设备之间延伸,每个链路包括第一节点之间的第一节点链路 装置以及所述中间装置或中间装置之间的链路,所述中间装置或所述中间装置与不是所述第一节点装置的所述装置之间的链路,并且所述系统具有访问用于分配时间和传输频率带宽的最小分配单元,所述方法包括: 获得一个参数的下行链路和上行链路参数的值 中型设备连接; 将这两个值映射到单个最小分配单元上并将其发送到第一节点设备。
    • 4. 发明申请
    • Communication Systems
    • 通讯系统
    • US20080043712A1
    • 2008-02-21
    • US11840669
    • 2007-08-17
    • Michael John HartYuefeng ZhouDorin ViorelChenxi ZhuMichiharu NakamuraMasahiro WatanabeHiroshi FujitaMakoto Yoshida
    • Michael John HartYuefeng ZhouDorin ViorelChenxi ZhuMichiharu NakamuraMasahiro WatanabeHiroshi FujitaMakoto Yoshida
    • H04B7/212
    • H04W28/16H04B7/15507H04B7/2606H04L5/0007H04L5/0032H04L5/0048H04L25/0226H04L27/2655H04L27/2692H04W48/08H04W84/047
    • A transmission method for use in a multi-hop wireless communication system is provided. The system includes a source apparatus, a destination apparatus and one or more intermediate apparatuses. The system has access to at least one predetermined transmission introduction sequence and also has access to a time-frequency format for use in assigning available transmission frequency bandwidth during a discrete transmission interval, said format defining a plurality of transmission windows within such an interval. Each window occupies a different part of that interval and has a frequency bandwidth profile within said available transmission frequency bandwidth over its part of that interval. Each said window being assignable for such a transmission interval to at least one of said apparatuses for use in transmission. The method includes, when transmitting a message with a preamble in a particular transmission interval, transmitting the preamble in a first transmission window of that transmission interval. Furthermore, the method includes transmitting the transmission introduction sequence in a second transmission window of that transmission interval other than the first transmission window preferably as control information for use by at least one said intermediate apparatus or the destination apparatus.
    • 提供了一种用于多跳无线通信系统的传输方法。 该系统包括源设备,目的地设备和一个或多个中间设备。 该系统可以访问至少一个预定的传输介绍序列,并且还可以访问用于在离散传输间隔期间分配可用传输频率带宽的时间 - 频率格式,所述格式在这样的间隔内定义多个传输窗口。 每个窗口占据该间隔的不同部分,并且在该间隔的部分内在所述可用传输频率带宽内具有频带配置。 每个所述窗口可分配给用于传输的所述设备中的至少一个的这种传输间隔。 该方法包括:在特定发送间隔中发送具有前导码的消息时,在该发送间隔的第一发送窗口中发送前导码。 此外,该方法包括:在第一传输窗口之外的传输间隔的第二传输窗口中优选地传输传输介绍序列作为至少一个所述中间设备或目的设备使用的控制信息。
    • 5. 发明授权
    • Mobile communication system using adaptive multi-antenna
    • 移动通信系统采用自适应多天线
    • US08532646B2
    • 2013-09-10
    • US12715689
    • 2010-03-02
    • Masahiro WatanabeMakoto YoshidaHiroshi Fujita
    • Masahiro WatanabeMakoto YoshidaHiroshi Fujita
    • H04W4/00
    • H04B7/0413H04B7/0613H04B7/0689
    • A mobile communication system using an adaptive multiantenna realizes improvement of reception characteristics, effective use of the band, and optimization of the throughput in comparison with a system in which application of the same multiantenna communication method is continued irrespective of a variation of the number of radio relay stations. The mobile communication system comprises a radio base station, a radio relay station, and mobile terminal stations for communicating with the radio base station through a radio relay station. The radio base station has a multiantenna and is characterized in that the radio base station judges if there is any variation of the number of radio relay stations when the radio base station carries out transmission through a radio relay station, and the radio base station communicates with the mobile terminal station by switching the multiantenna communication method using the multiantenna depending on the delay time of the feedback signal from the mobile terminal station if there is a variation of the number of radio relay stations.
    • 与使用同一多天线通信方法的系统相比,使用自适应多天线的移动通信系统实现接收特性的改善,频带的有效使用和吞吐量的优化,而与无线电的数量的变化无关 中继站。 移动通信系统包括无线电基站,无线电中继站和用于通过无线电中继站与无线电基站进行通信的移动终端站。 无线基站具有多天线,其特征在于,无线基站通过无线中继站进行无线基站的发送时,判断无线中继站的数量是否存在变化,无线基站与 如果存在无线电中继站的数量的变化,则根据来自移动终端站的反馈信号的延迟时间,通过使用多天线切换多天线通信方法。
    • 6. 发明申请
    • Radio communications system and radio communications control method
    • 无线电通信系统和无线电通信控制方法
    • US20080045143A1
    • 2008-02-21
    • US11826730
    • 2007-07-18
    • Makoto YoshidaMasahiro Watanabe
    • Makoto YoshidaMasahiro Watanabe
    • H04B3/36H04B7/14
    • H04W16/28H04B7/026H04B7/0617H04B7/1555
    • A radio communications system having a radio base station and a radio relay station is disclosed. A terminal performs radio communications through a link with the radio base station or a link with the radio base station via the radio relay station. The radio base station includes an antenna gain pattern switching part configured to switch between an omnidirectional antenna gain pattern and an adaptive array antenna gain pattern forming a beam; and a control part configured to direct the beam to the terminal in one of an extended service area covered by the adaptive array antenna gain pattern outside a regular service area covered by the omnidirectional antenna gain pattern and the service area of the radio relay station by causing the antenna gain pattern switching part to switch to the adaptive array antenna gain pattern.
    • 公开了一种具有无线电基站和无线电中继站的无线电通信系统。 终端经由无线基站与无线基站的链路进行无线通信,经由无线中继站进行无线通信。 无线基站包括:天线增益模式切换部,被配置为在全向天线增益模式与形成光束的自适应阵列天线增益图之间切换; 以及控制部,被配置为将光束引导到由全向天线增益模式覆盖的常规服务区域外的自适应阵列天线增益模式覆盖的扩展服务区域中的一个以及无线电中继站的服务区域中, 天线增益模式切换部分切换到自适应阵列天线增益模式。
    • 7. 发明授权
    • Communication control apparatus and method
    • 通信控制装置及方法
    • US08254928B2
    • 2012-08-28
    • US12253279
    • 2008-10-17
    • Masahiro WatanabeMakoto Yoshida
    • Masahiro WatanabeMakoto Yoshida
    • H04W36/00
    • H04W36/30H04B7/15507H04W84/005H04W88/08
    • A communication control apparatus that is applied to a wireless communication system in which a mobile terminal can be connected to a fixed base station through a wireless connection to a relay station that is mounted on a moving body, wherein the communication control apparatus includes a detecting unit that detects a change, associated with movement of the moving body on which the relay station is mounted, of a communication environment between the mobile terminal and the relay station, a control unit that controls a handover of the mobile terminal according to the change, detected by the detecting unit, of communication environment between the mobile terminal and the relay station.
    • 一种应用于无线通信系统的通信控制装置,其中移动终端可以通过无线连接与固定基站连接到安装在移动体上的中继站,其中通信控制装置包括检测单元 检测与所述移动终端与所述中继站之间的通信环境相关联的与所述中继站所在的移动体的移动相关联的变化,控制单元,其根据所述变化来控制所述移动终端的切换; 由检测单元检测移动终端与中继站之间的通信环境。
    • 8. 发明授权
    • Radio communications system and antenna pattern switching
    • 无线电通信系统和天线方向切换
    • US08000648B2
    • 2011-08-16
    • US11826730
    • 2007-07-18
    • Makoto YoshidaMasahiro Watanabe
    • Makoto YoshidaMasahiro Watanabe
    • H04B3/36H04B7/14
    • H04W16/28H04B7/026H04B7/0617H04B7/1555
    • A radio communications system having a radio base station and a radio relay station is disclosed. A terminal performs radio communications through a link with the radio base station or a link with the radio base station via the radio relay station. The radio base station includes an antenna gain pattern switching part configured to switch between an omnidirectional antenna gain pattern and an adaptive array antenna gain pattern forming a beam; and a control part configured to direct the beam to the terminal in one of an extended service area covered by the adaptive array antenna gain pattern outside a regular service area covered by the omnidirectional antenna gain pattern and the service area of the radio relay station by causing the antenna gain pattern switching part to switch to the adaptive array antenna gain pattern.
    • 公开了一种具有无线电基站和无线电中继站的无线电通信系统。 终端经由无线基站与无线基站的链路进行无线通信,经由无线中继站进行无线通信。 无线基站包括:天线增益模式切换部,被配置为在全向天线增益模式与形成光束的自适应阵列天线增益图之间切换; 以及控制部,被配置为将光束引导到由全向天线增益模式覆盖的常规服务区域外的自适应阵列天线增益模式覆盖的扩展服务区域中的一个以及无线电中继站的服务区域中, 天线增益模式切换部分切换到自适应阵列天线增益模式。