公开(公告)号：US08594049B2

公开(公告)日：2013-11-26

申请号：US12735991

申请日：2009-03-31

申请人： Daisuke Ohta

发明人： Daisuke Ohta

IPC分类号： H04W4/00

CPC分类号： H04W28/18 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0035 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0064 ,  H04L5/0091 ,  H04L27/0012 ,  H04W8/24 ,  H04W72/04 ,  H04W88/08

摘要： A wireless communication system comprises a base station, wherein the base station performs scheduling for determining a resource block allocated to a mobile station, and determines a downlink transmission parameter based on a reception quality reported from the mobile station. The base station determines a transmission parameter by a predetermined first method for determining a transmission parameter when an identical resource block as a resource block allocated to any mobile station is allocated in an area adjacent to an area to which the mobile station is connecting, and determines a transmission parameter by a second method for determining a transmission parameter which selects a transmission parameter having a transmitting efficiency equal to or more than that by the first method for determining a transmission parameter when an identical resource block as a resource block allocated to any mobile station is not allocated in an area adjacent to an area to which the mobile station is connecting.

摘要翻译： 一种无线通信系统，包括基站，其中，所述基站进行用于确定分配给移动台的资源块的调度，并且基于从所述移动台报告的接收质量来确定下行链路传输参数。 当在与移动台正在连接的区域相邻的区域中分配作为分配给任何移动台的资源块的相同的资源块时，基站通过预定的第一种方法确定传输参数来确定传输参数，并且确定 通过第二种方法确定传输参数的传输参数，该传输参数选择具有等于或大于第一种方法的传输效率的传输参数，用于当作为分配给任何移动台的资源块的相同资源块时确定传输参数 没有被分配在与移动台正在连接的区域相邻的区域中。

公开(公告)号：US08965435B2

公开(公告)日：2015-02-24

申请号：US13697487

申请日：2011-05-18

申请人： Takahiro Nobukiyo ,  Naoto Ishii ,  Daisuke Ohta

发明人： Takahiro Nobukiyo ,  Naoto Ishii ,  Daisuke Ohta

IPC分类号： H04W72/00 ,  H04B7/00 ,  H04M1/00 ,  H04W72/04 ,  H04W52/26 ,  H04L1/00 ,  H04L1/20 ,  H04W28/06 ,  H04W28/22 ,  H04W72/02 ,  H04W52/36

CPC分类号： H04W72/04 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/20 ,  H04W28/06 ,  H04W28/22 ,  H04W52/267 ,  H04W52/36 ,  H04W72/02 ,  H04W72/08

摘要： A wireless base station (100) calculates a first transmission rate when performing transmission to a wireless terminal with communication path quality by a first transmission power in a first candidate band selected as a candidate from first wireless bands including a neighboring priority band, calculates a second transmission rate when performing transmission to the wireless terminal (200) with the communication path quality by a second transmission power in a second candidate band selected as a candidate from second wireless bands that do not include the neighboring priority band, and sets, out of a first wireless resource including the first transmission power and the first candidate band and a second wireless resource including the second transmission power and the second candidate band, a wireless resource for a higher transmission rate obtained by the calculation as a wireless resource allocatable to the wireless terminal (200). It is therefore possible to maximize the throughput of the wireless terminal existing in the local station communication area while implementing suppression of interference to the neighboring cell.

摘要翻译： 无线基站（100）在从包括相邻优先级频带的第一无线频带选择为候选的第一候选频带中以通信路径质量传输第一传输功率的方式来计算第一传输速率，计算第二传输速率 在从不包括相邻优先级频带的第二无线频带选择为候选的第二候选频带中以通信路径质量通过第二传输功率向无线终端（200）发送传输速率的传输速率，并且 包括第一发射功率和第一候选频带的第一无线资源和包括第二发射功率和第二候选频带的第二无线资源，通过计算获得的较高传输速率的无线资源作为可分配给无线终端的无线资源 （200）。 因此，可以实现本地站通信区域中存在的无线终端的吞吐量，同时实现对相邻小区的干扰抑制。

公开(公告)号：US20120224545A1

公开(公告)日：2012-09-06

申请号：US13412278

申请日：2012-03-05

申请人： Daisuke OHTA ,  Takahiro NOBUKIYO ,  Naoto ISHII ,  Kojiro HAMABE

发明人： Daisuke OHTA ,  Takahiro NOBUKIYO ,  Naoto ISHII ,  Kojiro HAMABE

IPC分类号： H04W72/04

CPC分类号： H04W52/143 ,  H04W52/241 ,  H04W52/283 ,  H04W52/346 ,  H04W52/367 ,  H04W72/0473 ,  H04W72/085

摘要： For a communication terminal performing radio communication, a base station acquires communication path quality information representing a communication path quality, which is the quality of a communication path with the communication terminal. The base station allocates power larger than reference transmission power as transmission power to an edge terminal configuring at least part of an edge terminal group configured by an edge terminal that is a communication terminal whose communication path quality is lower than a threshold quality, allocates the reference transmission power as the transmission power to an edge terminal configuring a remaining part of the edge terminal group.

摘要翻译： 对于执行无线电通信的通信终端，基站获取表示作为与通信终端的通信路径的质量的通信路径质量的通信路径质量信息。 基站将配置作为通信路径质量低于阈值质量的通信终端的边缘终端构成的边缘终端组的至少一部分的边缘终端分配作为发送功率的发送功率作为发送功率，分配基准 发送功率作为构成边缘终端组的剩余部分的边缘终端的发送功率。

公开(公告)号：US20120214529A1

公开(公告)日：2012-08-23

申请号：US13403481

申请日：2012-02-23

申请人： Daisuke OHTA ,  Takahiro NOBUKIYO ,  Naoto ISHII ,  Kojiro HAMABE

发明人： Daisuke OHTA ,  Takahiro NOBUKIYO ,  Naoto ISHII ,  Kojiro HAMABE

IPC分类号： H04B7/00

CPC分类号： H04W52/343 ,  H04W52/143 ,  H04W52/241 ,  H04W52/283 ,  H04W52/346 ,  H04W52/367 ,  H04W72/0486 ,  H04W72/08

摘要： A device acquires load information representing a load of radio communication performed between a base station and a plurality of communication terminals performing radio communication with the base station by using a radio resource allocated by the base station. The device sets in response to the acquired load information, from a first radio resource range and a second radio resource range, a radio resource range that the base station can allocate to an edge communication terminal whose channel quality is less than a predetermined threshold.

摘要翻译： 设备通过使用由基站分配的无线电资源来获取表示在基站与执行与基站的无线电通信的多个通信终端之间执行的无线电通信的负载的负载信息。 该设备响应于从第一无线电资源范围和第二无线电资源范围获得的负载信息，基站可以向其信道质量小于预定阈值的边缘通信终端分配的无线资源范围进行设置。

公开(公告)号：US20100322202A1

公开(公告)日：2010-12-23

申请号：US12735991

申请日：2009-03-31

申请人： Daisuke Ohta

发明人： Daisuke Ohta

IPC分类号： H04J3/00

CPC分类号： H04W28/18 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0035 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0064 ,  H04L5/0091 ,  H04L27/0012 ,  H04W8/24 ,  H04W72/04 ,  H04W88/08

摘要： A wireless communication system comprises a base station, wherein the base station performs scheduling for determining a resource block allocated to a mobile station, and determines a downlink transmission parameter based on a reception quality reported from the mobile station. The base station determines a transmission parameter by a predetermined first method for determining a transmission parameter when an identical resource block as a resource block allocated to any mobile station is allocated in an area adjacent to an area to which the mobile station is connecting, and determines a transmission parameter by a second method for determining a transmission parameter which selects a transmission parameter having a transmitting efficiency equal to or more than that by the first method for determining a transmission parameter when an identical resource block as a resource block allocated to any mobile station is not allocated in an area adjacent to an area to which the mobile station is connecting.

摘要翻译： 一种无线通信系统，包括基站，其中，所述基站进行用于确定分配给移动台的资源块的调度，并且基于从所述移动台报告的接收质量来确定下行链路传输参数。 当在与移动台正在连接的区域相邻的区域中分配作为分配给任何移动台的资源块的相同的资源块时，基站通过预定的第一种方法确定传输参数来确定传输参数，并且确定 通过第二种方法确定传输参数的传输参数，该传输参数选择具有等于或大于第一种方法的传输效率的传输参数，用于当作为分配给任何移动台的资源块的相同资源块时确定传输参数 没有被分配在与移动台正在连接的区域相邻的区域中。

公开(公告)号：US20090122783A1

公开(公告)日：2009-05-14

申请号：US12092420

申请日：2006-11-01

申请人： Hisaaki Tanaka ,  Daisuke Ohta

发明人： Hisaaki Tanaka ,  Daisuke Ohta

IPC分类号： H04J3/06

CPC分类号： G04G7/00 ,  G04G7/02 ,  H04B7/2696 ,  H04J3/0658 ,  H04W56/002 ,  H04W84/18

摘要： A time synchronization method performed by each node in an ad hoc network in which a plurality of nodes are connected with each other by radio and time synchronization of each node is performed by transmitting and receiving a beacon including time information in a beacon period is provided. The time synchronization method includes: a generation step of generating a slot number using a random number every one beacon period; a determination step of determining whether to cancel beacon transmission based on the slot number when the node does not receive a beacon from another node by beacon transmission time corresponding to the slot number; and a step of canceling beacon transmission when determining to cancel beacon transmission in the determination step, and transmitting a beacon including time information of the own node at the beacon transmission time when determining not to cancel beacon transmission.

摘要翻译： 通过发送和接收包括信标周期中的时间信息的信标来执行通过各个节点的无线电和时间同步而将多个节点彼此连接的自组织网络中的每个节点执行的时间同步方法。 时间同步方法包括：生成步骤，每一个信标周期使用随机数产生时隙号; 确定步骤，当所述节点没有通过对应于所述时隙号的信标传输时间从另一节点接收到信标时，基于所述时隙号确定是否取消信标发送; 以及当确定在确定步骤中取消信标发送时消除信标发送的步骤，以及当确定不消除信标发送时，在信标发送时间发送包括自身节点的时间信息的信标。

公开(公告)号：US08971895B2

公开(公告)日：2015-03-03

申请号：US13403481

申请日：2012-02-23

申请人： Daisuke Ohta ,  Takahiro Nobukiyo ,  Naoto Ishii ,  Kojiro Hamabe

发明人： Daisuke Ohta ,  Takahiro Nobukiyo ,  Naoto Ishii ,  Kojiro Hamabe

IPC分类号： H04W36/00 ,  H04W52/34

CPC分类号： H04W52/343 ,  H04W52/143 ,  H04W52/241 ,  H04W52/283 ,  H04W52/346 ,  H04W52/367 ,  H04W72/0486 ,  H04W72/08

摘要： A device acquires load information representing a load of radio communication performed between a base station and a plurality of communication terminals performing radio communication with the base station by using a radio resource allocated by the base station. The device sets in response to the acquired load information, from a first radio resource range and a second radio resource range, a radio resource range that the base station can allocate to an edge communication terminal whose channel quality is less than a predetermined threshold.

摘要翻译： 设备通过使用由基站分配的无线电资源来获取表示在基站与执行与基站的无线电通信的多个通信终端之间执行的无线电通信的负载的负载信息。 该设备响应于从第一无线电资源范围和第二无线电资源范围获得的负载信息，基站可以向其信道质量小于预定阈值的边缘通信终端分配的无线资源范围进行设置。

公开(公告)号：US08755346B2

公开(公告)日：2014-06-17

申请号：US13412278

申请日：2012-03-05

申请人： Daisuke Ohta ,  Takahiro Nobukiyo ,  Naoto Ishii ,  Kojiro Hamabe

发明人： Daisuke Ohta ,  Takahiro Nobukiyo ,  Naoto Ishii ,  Kojiro Hamabe

IPC分类号： H04W72/04

CPC分类号： H04W52/143 ,  H04W52/241 ,  H04W52/283 ,  H04W52/346 ,  H04W52/367 ,  H04W72/0473 ,  H04W72/085

摘要： For a communication terminal performing radio communication, a base station acquires communication path quality information representing a communication path quality, which is the quality of a communication path with the communication terminal. The base station allocates power larger than reference transmission power as transmission power to an edge terminal configuring at least part of an edge terminal group configured by an edge terminal that is a communication terminal whose communication path quality is lower than a threshold quality, allocates the reference transmission power as the transmission power to an edge terminal configuring a remaining part of the edge terminal group.

摘要翻译： 对于执行无线电通信的通信终端，基站获取表示作为与通信终端的通信路径的质量的通信路径质量的通信路径质量信息。 基站将配置作为通信路径质量低于阈值质量的通信终端的边缘终端构成的边缘终端组的至少一部分的边缘终端分配作为发送功率的发送功率作为发送功率，分配基准 发送功率作为构成边缘终端组的剩余部分的边缘终端的发送功率。

公开(公告)号：US20130072246A1

公开(公告)日：2013-03-21

申请号：US13697487

申请日：2011-05-18

申请人： Takahiro Nobukiyo ,  Naoto Ishii ,  Daisuke Ohta

发明人： Takahiro Nobukiyo ,  Naoto Ishii ,  Daisuke Ohta

IPC分类号： H04W72/04

CPC分类号： H04W72/04 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/20 ,  H04W28/06 ,  H04W28/22 ,  H04W52/267 ,  H04W52/36 ,  H04W72/02 ,  H04W72/08

摘要： A wireless base station (100) calculates a first transmission rate when performing transmission to a wireless terminal with communication path quality by a first transmission power in a first candidate band selected as a candidate from first wireless bands including a neighboring priority band, calculates a second transmission rate when performing transmission to the wireless terminal (200) with the communication path quality by a second transmission power in a second candidate band selected as a candidate from second wireless bands that do not include the neighboring priority band, and sets, out of a first wireless resource including the first transmission power and the first candidate band and a second wireless resource including the second transmission power and the second candidate band, a wireless resource for a higher transmission rate obtained by the calculation as a wireless resource allocatable to the wireless terminal (200). It is therefore possible to maximize the throughput of the wireless terminal existing in the local station communication area while implementing suppression of interference to the neighboring cell.

摘要翻译： 无线基站（100）在从包括相邻优先级频带的第一无线频带选择为候选的第一候选频带中以通信路径质量传输第一传输功率的方式来计算第一传输速率，计算第二传输速率 在从不包括相邻优先级频带的第二无线频带选择为候选的第二候选频带中以通信路径质量通过第二传输功率向无线终端（200）发送传输速率的传输速率，并且 包括第一发射功率和第一候选频带的第一无线资源和包括第二发射功率和第二候选频带的第二无线资源，通过计算获得的较高传输速率的无线资源作为可分配给无线终端的无线资源 （200）。 因此，可以实现本地站通信区域中存在的无线终端的吞吐量，同时实现对相邻小区的干扰抑制。