公开(公告)号：US07532578B2

公开(公告)日：2009-05-12

申请号：US10728981

申请日：2003-12-08

申请人： Akihito Hanaki ,  Minami Ishii ,  Sung Uk Moon ,  Takehiro Nakamura ,  Masafumi Usuda ,  Mayu Yamada

发明人： Akihito Hanaki ,  Minami Ishii ,  Sung Uk Moon ,  Takehiro Nakamura ,  Masafumi Usuda ,  Mayu Yamada

IPC分类号： H04L12/26 ,  H04L12/56

CPC分类号： H04W4/06 ,  H04L12/1836 ,  H04L12/189 ,  H04L67/289 ,  H04L69/329 ,  H04W8/22 ,  H04W72/005

摘要： The object of the present invention is to provide a communication system which makes it possible to avoid a control load from being generated while effectively utilizing the reception capabilities of mobile stations. The communication system includes a category manager 11 configured to categorize reception capability values showing reception capabilities necessary for receiving multicast data in the mobile stations, a reception capability collector 33 configured to collect the reception capability values of the mobile stations, a decider 34 configured to decide a hierarchical structure of the multicast data from a plurality of categories corresponding to the collected reception capability values of the mobile stations and a transmitter 31 configured to transmit the multicast data using the decided hierarchical structure.

摘要翻译： 本发明的目的是提供一种通信系统，其能够避免在有效地利用移动台的接收能力的同时产生控制负载。 通信系统包括：类别管理器11，被配置为对表示接收移动站中的组播数据所需的接收能力的接收能力值进行分类;接收能力收集器33，被配置为收集移动台的接收能力值;判定器34， 来自与收集的移动台的接收能力值对应的多个类别的多播数据的分层结构;以及发送器31，被配置为使用所确定的分层结构来发送多播数据。

公开(公告)号：US07477604B2

公开(公告)日：2009-01-13

申请号：US10842467

申请日：2004-05-11

申请人： Sung Uk Moon ,  Minami Ishii ,  Takehiro Nakamura ,  Masafumi Usuda ,  Yasuhiro Kato ,  Yoshimasa Imamura

发明人： Sung Uk Moon ,  Minami Ishii ,  Takehiro Nakamura ,  Masafumi Usuda ,  Yasuhiro Kato ,  Yoshimasa Imamura

IPC分类号： H04L12/56

CPC分类号： H04L47/10 ,  H04L47/14 ,  H04L47/263 ,  H04L47/29 ,  H04L47/36

摘要： A packet communications system which transmits a packet at a predetermined transmission rate includes a packet size controller configured to change a size of the packet in accordance with available space of a transmission buffer storing the packet, when the predetermined transmission rate is changed.

摘要翻译： 以预定传输速率发送分组的分组通信系统包括：分组大小控制器，配置为当预定传输速率改变时，根据存储分组的传输缓冲区的可用空间来改变分组的大小。

公开(公告)号：US07120467B2

公开(公告)日：2006-10-10

申请号：US10778355

申请日：2004-02-17

申请人： Anil Umesh ,  Koichi Okawa ,  Shinya Tanaka ,  Takehiro Nakamura

发明人： Anil Umesh ,  Koichi Okawa ,  Shinya Tanaka ,  Takehiro Nakamura

IPC分类号： H04M1/00

CPC分类号： H04W72/0466 ,  H04W24/00 ,  H04W88/08

摘要： A base station is configured to transmit a downlink signal to a mobile station located in a sector managed by the base station. The downlink signal is spread using a scrambling code. The base station has a monitor configured to monitor a change of a reception condition of an uplink common channel of the mobile station in the sector, a DOA estimator configured to estimate a direction of arrival of an uplink signal transmitted from the mobile station, in response to the change, an area border setter configured to separate the sector into a plurality of areas, by setting an area border in the sector in accordance with the estimated direction, a scrambling code assigner configured to assign a different scrambling code to each of the separated areas and a spreader configured to spread the downlink signal using the assigned scrambling code in each of the separated areas.

摘要翻译： 基站被配置为向位于由基站管理的扇区中的移动台发送下行链路信号。 使用扰码扩展下行链路信号。 基站具有：监视器，用于监视扇区中的移动站的上行链路公共信道的接收状况的变化; DOA估计器，被配置为估计从移动台发送的上行链路信号的到达方向，作为响应 所述区域边界设置器被配置为通过根据所述估计方向设置所述扇区中的区域边界来将所述扇区分离成多个区域;扰码分配器，被配置为向所分割的每个区域分配不同的扰码 区域和扩展器，其被配置为使用分配的扰码在每个分离区域中扩展下行链路信号。

公开(公告)号：US07233812B2

公开(公告)日：2007-06-19

申请号：US10739277

申请日：2003-12-19

申请人： Koichi Okawa ,  Anil Umesh ,  Shinya Tanaka ,  Takehiro Nakamura

发明人： Koichi Okawa ,  Anil Umesh ,  Shinya Tanaka ,  Takehiro Nakamura

IPC分类号： H04M1/00

CPC分类号： H04W16/28 ,  H04B7/0491 ,  H04B7/0617 ,  H04B7/0632 ,  H04B7/086

摘要： The object of the present invention to provide a directional beam communication system whereby the beam width of a directional beam to be transmitted is reduced by sharing an array antenna among a plurality of adjacent sectors so as to increase the interference suppression effect. The directional beam communication system is configured to communicate with a mobile station MS located in a service area formed by a plurality of sectors S1 and S2 using a directional beam which is transmitted by an array antenna A including a plurality of antenna elements a. The array antenna A for transmitting the directional beam is shared among at least two adjacent sectors S1 and S2.

摘要翻译： 本发明的目的是提供一种定向波束通信系统，由此通过在多个相邻扇区之间共享阵列天线来减少待发射的定向波束的波束宽度，以增加干扰抑制效果。 定向波束通信系统被配置为使用由包括多个天线元件a的阵列天线A发送的定向波束与位于由多个扇区S1和S2形成的服务区域中的移动台MS进行通信。 用于发送定向波束的阵列天线A在至少两个相邻扇区S1和S2之间共享。

公开(公告)号：US07190957B2

公开(公告)日：2007-03-13

申请号：US10628357

申请日：2003-07-29

申请人： Koichi Okawa ,  Shinya Tanaka ,  Takehiro Nakamura

发明人： Koichi Okawa ,  Shinya Tanaka ,  Takehiro Nakamura

IPC分类号： H04Q7/20 ,  H04B7/185 ,  H01Q1/00

CPC分类号： H04W36/12

摘要： A method for connecting the radio link between a mobile station and a base station is provided to improve quality of received signals at the base station and the mobile station. A radio network controller (RNC) monitors the difference between the reception power of signals from the source base station BS1 and the destination base station BS2. If the base station BS2 is incapable of directional beam signal transmission and reception, and when the reception power difference becomes smaller than a first handover threshold, the radio network controller adds the base station BS2 as a radio link connection destination of the mobile station. If the base station BS2 is capable of directional beam signal transmission and reception, and when the reception power difference becomes smaller than a second handover threshold, which is larger than the first handover threshold, the radio network controller adds the base station BS2 as a radio link connection destination of the mobile station.

摘要翻译： 提供一种用于连接移动台和基站之间的无线电链路的方法，以提高在基站和移动台处的接收信号的质量。 无线电网络控制器（RNC）监视来自源基站BS 1和目的地基站BS 2的信号的接收功率之间的差异。 如果基站BS 2不能进行定向波束信号的发送和接收，并且当接收功率差变得小于第一切换阈值时，无线网络控制器将基站BS 2作为移动台的无线链路连接目的地 。 如果基站BS 2能够进行定向波束信号发送和接收，并且当接收功率差变得小于大于第一切换阈值的第二切换阈值时，无线网络控制器将基站BS 2添加为 移动台的无线链路连接目的地。

公开(公告)号：US07142888B2

公开(公告)日：2006-11-28

申请号：US10646821

申请日：2003-08-25

申请人： Koichi Okawa ,  Shinya Tanaka ,  Takehiro Nakamura

发明人： Koichi Okawa ,  Shinya Tanaka ,  Takehiro Nakamura

IPC分类号： H04B1/38 ,  H04M1/00

CPC分类号： H04B7/0617 ,  H04B7/0408 ,  H04B7/0689 ,  H04B7/086 ,  H04L1/0025 ,  H04W16/24 ,  H04W16/28 ,  H04W52/322 ,  H04W52/42 ,  H04W88/08

摘要： The object of the present invention is to improve the accuracy of channel estimation and increase downlink capacity when a base station transmits an individual channel using directional beams. The base station 10 according to the present invention comprises an individual channel transmitter 15 configured to transmit an individual channel into which pilot symbols are inserted; and an individual channel format creator 14 configured to create a format of the individual channel. The individual channel format creator 14 changes between a format of an individual channel which is to be transmitted using directional beams and a format of an individual channel which is to be transmitted using non-directional beams.

摘要翻译： 本发明的目的是提高信道估计的准确性，并且当基站使用定向波发射单个信道时增加下行链路容量。 根据本发明的基站10包括个体信道发射机15，其被配置为发射导频符号被插入到其中的单独信道; 以及被配置为创建单独频道的格式的单独频道格式创建器14。 单独信道格式创建器14在要使用定向波束发送的单独信道的格式和要使用非定向波束发送的单独信道的格式之间改变。

公开(公告)号：US07099697B2

公开(公告)日：2006-08-29

申请号：US10644809

申请日：2003-08-21

申请人： Koichi Okawa ,  Shinya Tanaka ,  Takehiro Nakamura

发明人： Koichi Okawa ,  Shinya Tanaka ,  Takehiro Nakamura

IPC分类号： H04M1/00

CPC分类号： H04W16/28

摘要： A base station comprises a directional antenna configured to transmit a directional beam to a mobile station, an omnidirectional antenna configured to transmit an omnidirectional beam to the mobile station, and an antenna controller configured to determine whether or not the mobile station is capable of receiving the directional beam, and select the directional antenna as an antenna for transmitting individual data in a case of being capable of receiving the directional beam, or select the omnidirectional antenna as an antenna for transmitting the individual data in a case of being incapable of receiving the directional beam.

摘要翻译： 基站包括：定向天线，被配置为向移动台发送定向波束;全向天线，被配置为向所述移动台发送全向波束;以及天线控制器，被配置为确定所述移动台是否能够接收 并且在能够接收定向波束的情况下选择定向天线作为用于发送各个数据的天线，或者在不能接收定向波束的情况下选择全向天线作为用于发送各个数据的天线 光束。

公开(公告)号：US07027839B2

公开(公告)日：2006-04-11

申请号：US10693909

申请日：2003-10-28

申请人： Anil Umesh ,  Shinya Tanaka ,  Takehiro Nakamura ,  Koichi Okawa

发明人： Anil Umesh ,  Shinya Tanaka ,  Takehiro Nakamura ,  Koichi Okawa

IPC分类号： H04M1/00

CPC分类号： H01Q1/246 ,  H04W16/28

摘要： The object of the present invention is to avoid disconnection of a radio link between the radio base station and the mobile station even when the mobile station moves while transmitting no up signals in a case where the radio base station transmits the directional beam. The radio base station according to the present invention comprises an array antenna 11 to transmit/receive the directional beam, an transceiver 12 to receive an up signal from a mobile station 2 and to generate a directional beam pattern for each mobile station according to an antenna weight, a up signal interval measurer 13 to measure elapsed time from reception of the up signal, and a antenna weight generator 15 to change the antenna weight based on a result of measuring by the up signal interval measurer 13.

摘要翻译： 本发明的目的是避免无线电基站和移动台之间的无线电链路的断开，即使在无线电基站发送定向波束的情况下，当移动台移动时也不发送无信号。 根据本发明的无线电基站包括用于发送/接收定向波束的阵列天线11，用于从移动台2接收上行信号的收发器12，并且根据天线为每个移动台生成定向波束模式 重量，上升信号间隔测量器13，用于测量从接收到上升信号的经过时间;以及天线权重发生器15，用于基于由上行信号间隔测量器13测量的结果来改变天线权重。

公开(公告)号：US08005440B2

公开(公告)日：2011-08-23

申请号：US11331200

申请日：2006-01-13

申请人： Hiroyuki Ishii ,  Takehiro Nakamura

发明人： Hiroyuki Ishii ,  Takehiro Nakamura

IPC分类号： H03C7/02 ,  H04B1/02 ,  H04B7/02

CPC分类号： H04B7/0634 ,  H04B7/0654

摘要： A mobile station apparatus communicates with a wireless base station apparatus to which closed-loop transmission diversity control is applied, the closed-loop transmission diversity control controlling phases of signals transmitted from two antennas based upon feedback information notified by the mobile station apparatus and transmitting the signals. The mobile station apparatus includes a control unit which determines whether to reflect an estimated phase result of the signals transmitted from the two antennas or not, depending on a channel type of signals transmitted from the wireless base station apparatus.

摘要翻译： 移动站装置与应用了闭环发送分集控制的无线基站装置进行通信，根据由移动站装置通知的反馈信息，控制从两个天线发送的信号的相位的闭环发送分集控制， 信号。 移动台装置具有控制部，其根据从无线基站装置发送的信号的信道类​​型，判定是否反映从两个天线发送的信号的估计相位结果。

公开(公告)号：US07974231B2

公开(公告)日：2011-07-05

申请号：US11912818

申请日：2006-04-25

申请人： Hiroyuki Ishii ,  Anil Umesh ,  Masafumi Usuda ,  Takehiro Nakamura

发明人： Hiroyuki Ishii ,  Anil Umesh ,  Masafumi Usuda ,  Takehiro Nakamura

IPC分类号： H04B7/185 ,  H04M5/00

CPC分类号： H04W52/12 ,  H04L1/20 ,  H04W52/286

摘要： A communication control apparatus (30, 10) used in a mobile communication system includes: means (32, 12) that derives a second target communication quality Q2 for TFs other than a reference format from a first target communication quality for the reference format in a plurality of TFs provide for communicating with an upper layer of a physical channel; means (33, 13) that derives a third target communication quality different from the first target communication quality from the first and the second target communication qualities; and means that sets the third target communication quality to be a target value of transmission power control.

摘要翻译： 在移动通信系统中使用的通信控制装置（30,10）包括：对于参考格式的TF以外的TF的第二目标通信质量Q2，对于参考格式的第一目标通信质量，在 多个TF提供与物理信道的上层通信; 用于从第一和第二目标通信质量导出与第一目标通信质量不同的第三目标通信质量的装置（33,13）; 以及将第三目标通信质量设定为发送功率控制的目标值的手段。