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    COMMUNICATION SYSTEM, BASE STATION, TERMINAL, AND COMMUNICATION METHOD
    5.
    发明申请
    COMMUNICATION SYSTEM, BASE STATION, TERMINAL, AND COMMUNICATION METHOD 审中-公开
    通信系统，基站，终端和通信方法

    公开(公告)号：US20100091722A1

    公开(公告)日：2010-04-15

    申请号：US12516905

    申请日：2007-11-29

    申请人： Nobuaki Takamatsu ,  Hironobu Tanigawa ,  Yasuhiro Nakamura

    发明人： Nobuaki Takamatsu ,  Hironobu Tanigawa ,  Yasuhiro Nakamura

    IPC分类号： H04W72/04

    CPC分类号： H04L5/0007 ,  H04L5/0042 ,  H04L5/0044 ,  H04L5/0064 ,  H04L5/0094 ,  H04W72/0453

    摘要： A multiservice is implemented by connecting one base station and one terminal via one wireless link.There is provided communication control means 2-1 that performs communication in compliance with an OFDMA scheme having traffic channels including first sub-channels for containing information showing enabled or disabled sub-channels and second sub-channels for storing data pertaining to services in correspondence with the first sub-channels, that allocates a plurality of first sub-channels to a plurality of services, respectively, and that connects one base station to one terminal via one wireless link, thereby establishing communication pertaining to the plurality of services.

    摘要翻译： 通过一个无线链路连接一个基站和一个终端来实现多业务。 提供了通信控制装置2-1，其执行符合具有业务信道的业务信道的业务信道的通信，所述业务信道包括用于包含表示启用或禁用子信道的信息的第一子信道，以及用于存储与业务对应关系的数据的第二子信道 所述第一子信道分别将多个第一子信道分配给多个业务，并且经由一个无线链路将一个基站连接到一个终端，从而建立与所述多个业务有关的通信。

    OFDMA Communication System and Communication Method
    6.
    发明申请
    OFDMA Communication System and Communication Method 有权
    OFDMA通信系统和通信方法

    公开(公告)号：US20090303949A1

    公开(公告)日：2009-12-10

    申请号：US12442340

    申请日：2007-09-19

    申请人： Hironobu Tanigawa ,  Yasuhiro Nakamura ,  Nobuaki Takamatsu

    发明人： Hironobu Tanigawa ,  Yasuhiro Nakamura ,  Nobuaki Takamatsu

    IPC分类号： H04W72/04 ,  H04L27/28

    CPC分类号： H04W72/042 ,  H04L5/0007 ,  H04L5/0094

    摘要： There is provided an OFDMA communication system capable of suppressing the communication resource reduction and reducing the processing load on a base station. The system includes a downlink frame generation unit (14) that generates a downlink frame for a downlink period for performing communication to at least one terminal (20) of a plurality of terminals from the base station (10), an uplink frame generation unit (24) that generates an uplink frame for an uplink period for performing communication to the base station (10) from at least one terminal (20) of the plurality of terminals, and a channel allocation unit that allocates, for one terminal of the plurality of terminals, one or more subchannels available in the one terminal, wherein the channel allocation unit notifies information of the allocated one or more available subchannels to the one terminal only by the downlink frame.

    摘要翻译： 提供了能够抑制通信资源减少并降低基站处理负荷的OFDMA通信系统。 该系统包括下行链路帧生成单元（14），其生成用于从基站（10）向多个终端中的至少一个终端（20）进行通信的下行链路周期的下行链路帧，上行链路帧生成单元 24），其生成用于从所述多个终端中的至少一个终端（20）向所述基站（10）进行通信的上行链路周期的上行链路帧，以及信道分配单元，对于所述多个 终端，一个终端中可用的一个或多个子信道，其中，信道分配单元仅通过下行链路帧向一个终端通知所分配的一个或多个可用子信道的信息。

    OFDMA communication system and communication method
    7.
    发明授权
    OFDMA communication system and communication method 有权
    OFDMA通信系统和通信方法

    公开(公告)号：US08699427B2

    公开(公告)日：2014-04-15

    申请号：US12442291

    申请日：2007-09-19

    申请人： Hironobu Tanigawa ,  Yasuhiro Nakamura ,  Nobuaki Takamatsu

    发明人： Hironobu Tanigawa ,  Yasuhiro Nakamura ,  Nobuaki Takamatsu

    IPC分类号： H04W4/00

    CPC分类号： H04L5/1484 ,  H04L5/0007 ,  H04L5/0048 ,  H04W72/04

    摘要： There is provided an OFDMA communication system capable of suppressing the communication resource reduction and reducing the processing load on a base station. The system includes a downlink frame generation unit (14) that generates a downlink frame for a downlink period for performing communication to at least one terminal (20) of a plurality of terminals from the base station (10), an uplink frame generation unit (24) that generates an uplink frame for an uplink period for performing communication to the base station (10) from at least one terminal (20) of the plurality of terminals, and a channel allocation unit that allocates, for one terminal of the plurality of terminals, one or more subchannels available in the one terminal, wherein the channel allocation unit allocates, among the subchannels, subchannels having a same time slot and a same frequency band in the downlink frame and in the uplink frame for a single terminal of the plurality of terminals.

    摘要翻译： 提供了能够抑制通信资源减少并降低基站处理负荷的OFDMA通信系统。 该系统包括下行链路帧生成单元（14），其生成用于从基站（10）向多个终端中的至少一个终端（20）进行通信的下行链路周期的下行链路帧，上行链路帧生成单元 24），其生成用于从所述多个终端中的至少一个终端（20）向所述基站（10）进行通信的上行链路周期的上行链路帧，以及信道分配单元，对于所述多个 终端，一个终端中可用的一个或多个子信道，其中信道分配单元在子信道中分配在下行链路帧中具有相同时隙和相同频带的子信道，并且在多个子载波中的单个终端的上行链路帧中 的终端。

    Base station apparatus and wireless communication method
    8.
    发明授权
    Base station apparatus and wireless communication method 有权
    基站装置和无线通信方法

    公开(公告)号：US08170573B2

    公开(公告)日：2012-05-01

    申请号：US12440432

    申请日：2007-08-29

    申请人： Hironobu Tanigawa ,  Yasuhiro Nakamura ,  Toru Sahara ,  Nobuaki Takamatsu

    发明人： Hironobu Tanigawa ,  Yasuhiro Nakamura ,  Toru Sahara ,  Nobuaki Takamatsu

    IPC分类号： H04B1/38 ,  H04J3/16

    CPC分类号： H04L1/1812 ,  H04L1/1893 ,  H04W72/0453 ,  H04W88/08

    摘要： A base station apparatus which conducts a packet communication with a wireless communication terminal includes: a retransmission request detection unit which detects a retransmission request from the wireless communication terminal; a bandwidth assignment unit which assigns a communication bandwidth applied to the packet communication; a modulation class calculation portion, based on both bandwidth information regarding the bandwidth assigned by the bandwidth assignment unit and a data amount of packets corresponding to the retransmission request, calculates a modulation class applied to a retransmission in order to adjust a number of retransmitted packets to be the same as a number of previously transmitted packets; a modulation class determination unit which determines whether or not the modulation class is lower than a modulation class applied to a previous packet transmission; and a retransmission unit which retransmits packets corresponding to the retransmission request based on the determination result regarding the modulation class.

    摘要翻译： 与无线通信终端进行分组通信的基站装置包括：重发请求检测单元，其从无线通信终端检测重发请求; 带宽分配单元，其分配应用于分组通信的通信带宽; 调制类计算部分，基于与带宽分配单元分配的带宽的带宽信息和与重传请求对应的分组的数据量，计算应用于重传的调制类，以便将重传分组的数量调整为 与以前传输的数据数量相同; 调制类别确定单元，确定调制类别是否低于应用于先前分组传输的调制类别; 以及重传单元，其基于关于调制类别的判定结果，重发与所述重发请求对应的分组。

    COMMUNICATION METHOD AND COMMUNICATION SYSTEM
    9.
    发明申请
    COMMUNICATION METHOD AND COMMUNICATION SYSTEM 有权
    通信方法与通信系统

    公开(公告)号：US20100178926A1

    公开(公告)日：2010-07-15

    申请号：US12666271

    申请日：2008-05-23

    申请人： Hironobu Tanigawa ,  Yasuhiro Nakamura ,  Nobuaki Takamatsu

    发明人： Hironobu Tanigawa ,  Yasuhiro Nakamura ,  Nobuaki Takamatsu

    IPC分类号： H04W72/00

    CPC分类号： H04L5/0007 ,  H04L5/0037 ,  H04L5/0094

    摘要： Present invention provides a communication method and a communication system that can provide more detailed communication control, larger transmission capacity, and more flexible resource distribution to users in comparison with a communication method using a conventional frame format.There are provided a downlink frame generator 14 that generates a downlink frame for a downlink period in which a cell station 10 communicates with at least one personal station of the plurality of personal stations 20 in a predetermined frame format, and an uplink frame generator 24 that generates an uplink frame for an uplink period in which at least one personal station of the plurality of personal stations communicates with the cell station 10 in a predetermined frame format, wherein the frame format of the downlink frame includes a MAP field that notifies, in the downlink period, each personal station of information indicating an available or unavailable subchannel for each personal station.

    摘要翻译： 本发明提供了一种通信方法和通信系统，与使用常规帧格式的通信方法相比，可以向用户提供更详细的通信控制，更大的传输容量和更灵活的资源分配。 提供了下行链路帧生成器14，其生成用于下行链路周期的下行链路帧，其中小区站10以预定帧格式与多个个人站20中的至少一个个人站通信，以及上行链路帧生成器24， 生成上行链路帧，其中多个个人站中的至少一个个人站以预定的帧格式与小区10进行通信，其中下行链路帧的帧格式包括MAP字段，其在 下行链路周期，每个个人站的信息指示每个个人站的可用或不可用的子信道。

    Communication Control Method, Base Station Device, Terminal Device, and Communication Control System Using TDD-OFDMA Communication Method
    10.
    发明申请
    Communication Control Method, Base Station Device, Terminal Device, and Communication Control System Using TDD-OFDMA Communication Method 有权
    通信控制方法，基站装置，终端装置和使用TDD-OFDMA通信方式的通信控制系统

    公开(公告)号：US20100097962A1

    公开(公告)日：2010-04-22

    申请号：US12443423

    申请日：2007-09-18

    申请人： Toru Sahara ,  Masamitsu Nishikido ,  Hironobu Tanigawa

    发明人： Toru Sahara ,  Masamitsu Nishikido ,  Hironobu Tanigawa

    IPC分类号： H04B7/208 ,  H04J3/00

    CPC分类号： H04L5/0091 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/1484 ,  H04L25/03006 ,  H04L27/2655 ,  H04L27/2675 ,  H04L2025/03414 ,  H04W56/0005

    摘要： In a communication system and a communication method using a TDD-OFDMA communication method, inter-carrier interference due to delay dispersion is prevented by suppressing the delay time within a guard interval.In a base station device 10, based on a pilot symbol included in uplink information transmitted from a terminal device 20 through an assigned channel assigned by a channel assignment response, it is estimated whether a received timing of receiving the uplink information is early or late, the received timing estimation result is recorded in a timing recording unit, and when transmitting downlink information from the base station device 10, a transmission timing request is added to the downlink information based on content recorded in the timing recording unit and the downlink information is transmitted to the terminal device 20 (Step S15), and in the terminal device 20, the received transmission timing request is recorded in a transmission timing recording unit, and uplink information is transmitted from the terminal device 20 to the base station device 10 at a timing instructed by a transmission timing request (Step S16).

    摘要翻译： 在使用TDD-OFDMA通信方法的通信系统和通信方法中，通过抑制保护间隔内的延迟时间来防止由延迟色散引起的载波间干扰。 在基站装置10中，基于通过由信道分配响应分配的分配信道从终端装置20发送的上行链路信息中包含的导频符号，估计接收到上行链路信息的接收定时是早还是晚， 接收到的定时估计结果被记录在定时记录单元中，并且当从基站装置10发送下行链路信息时，基于记录在定时记录单元中的内容将发送定时请求添加到下行链路信息，并且发送下行链路信息 到终端装置20（步骤S15），在终端装置20中，将接收到的发送定时请求记录在发送定时记录部中，在定时发送上行链路信息从终端装置20向基站装置10发送 由发送定时请求指示（步骤S16）。