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公开(公告)号：US08699427B2
公开(公告)日：2014-04-15
申请号：US12442291
申请日：2007-09-19
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。
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公开(公告)号：US08170573B2
公开(公告)日：2012-05-01
申请号：US12440432
申请日：2007-08-29
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。
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公开(公告)号：US20100178926A1
公开(公告)日：2010-07-15
申请号：US12666271
申请日：2008-05-23
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。
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4.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
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）。
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公开(公告)号：US20100020754A1
公开(公告)日：2010-01-28
申请号：US12442092
申请日：2007-09-19
IPC分类号： H04W72/04
CPC分类号： H04L5/1484 , H04L5/0007 , H04L5/0048
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), and 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. The downlink frame and the uplink frame have symmetric configurations.
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），其生成下行链路周期的下行链路帧，用于从基站（10）向多个终端中的至少一个终端（20）进行通信，上行链路帧生成单元 （24），其从所述多个终端的至少一个终端（20）生成用于进行与所述基站（10）的通信的上行链路周期的上行链路帧。 下行链路帧和上行链路帧具有对称配置。
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6.发明申请公开(公告)号：US20100091722A1
公开(公告)日：2010-04-15
申请号：US12516905
申请日：2007-11-29
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。
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公开(公告)号：US20090303949A1
公开(公告)日：2009-12-10
申请号：US12442340
申请日：2007-09-19
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。
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公开(公告)号：US08982800B2
公开(公告)日：2015-03-17
申请号：US12517052
申请日：2007-11-29
CPC分类号： H04L5/0096 , H04L5/0007 , H04L5/0042 , H04L5/0053 , H04L5/0064 , H04L5/0087 , H04L27/2604 , H04W28/18
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有关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。
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9.发明授权Magnetic memory including memory cells incorporating data recording layer with perpendicular magnetic anisotropy film 有权磁存储器，包括具有垂直磁各向异性膜的数据记录层的存储单元公开(公告)号：US08830735B2
公开(公告)日：2014-09-09
申请号：US13304083
申请日：2011-11-23
申请人： Eiji Kariyada , Katsumi Suemitsu , Hironobu Tanigawa , Kaoru Mori , Tetsuhiro Suzuki , Kiyokazu Nagahara , Yasuaki Ozaki , Norikazu Ohshima
发明人： Eiji Kariyada , Katsumi Suemitsu , Hironobu Tanigawa , Kaoru Mori , Tetsuhiro Suzuki , Kiyokazu Nagahara , Yasuaki Ozaki , Norikazu Ohshima
CPC分类号： H01L43/10 , G01R33/091 , G01R33/098 , G11C11/02 , G11C11/14 , G11C11/15 , G11C11/161 , Y10T428/1114 , Y10T428/1121 , Y10T428/1143
摘要： A magnetic memory includes: a magnetization fixed layer having perpendicular magnetic anisotropy, a magnetization direction of the magnetization fixed layer being fixed; an interlayer dielectric; an underlayer formed on upper faces of the magnetization fixed layer and the interlayer dielectric; and a data recording layer formed on an upper face of the underlayer and having perpendicular magnetic anisotropy. The underlayer includes: a first magnetic underlayer; and a non-magnetic underlayer formed on the first magnetic underlayer. The first magnetic underlayer is formed with such a thickness that the first magnetic underlayer does not exhibit in-plane magnetic anisotropy in a portion of the first magnetic underlayer formed on the interlayer dielectric.
摘要翻译： 磁存储器包括：具有垂直磁各向异性的磁化固定层，磁化固定层的磁化方向固定; 层间电介质; 形成在磁化固定层和层间电介质的上表面上的底层; 以及形成在下层的上表面上并具有垂直磁各向异性的数据记录层。 底层包括：第一磁性底层; 以及形成在第一磁性底层上的非磁性底层。 形成第一磁性底层，使得第一磁性底层在形成于层间电介质上的第一磁性底层的一部分中不具有面内的磁各向异性。
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10.发明授权Mobile communication system, base station device, mobile station device, and mobile communication method 有权移动通信系统，基站装置，移动台装置，移动通信方式公开(公告)号：US08305973B2
公开(公告)日：2012-11-06
申请号：US12375199
申请日：2007-07-26
IPC分类号： H04W4/00
CPC分类号： H04L27/2608 , H04L5/023
摘要： A base station device (10) performs communications with multiple mobile station devices (20) by the OFDMA scheme. The base station device (10) includes an intra-frame region specifying unit (16) configured to specify a region in a downlink frame to be specified by at least the sub-channel and a transmitter (13) configured to transmit MAP region information indicating the specified downlink intra-frame region. The intra-frame region specifying unit (16) specifies a region in a frame that is to contain communication data. The base station device (10) further includes a MAP generator (121) configured to generate MAP indicating the specified intra-frame region, and the transmitter (13) transmits a downlink frame containing the generated MAP in all or a part of the downlink intra-frame region specified by the MAP region information.
摘要翻译： 基站装置（10）通过OFDMA方式与多个移动台装置（20）进行通信。 基站装置（10）具有：帧内区域指定部（16），被配置为指定要由至少所述子信道指定的下行链路帧中的区域;以及发送器（13），被配置为发送指示 指定的下行帧内区域。 帧内区域指定单元（16）指定要包含通信数据的帧中的区域。 基站装置（10）还包括MAP生成器（121），其被配置为生成表示指定的帧内区域的MAP，并且发送器（13）在下行链路内部的全部或一部分中发送包含生成的MAP的下行链路帧 由MAP区域信息指定的帧区域。
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