公开(公告)号：US20110275337A1

公开(公告)日：2011-11-10

申请号：US13185536

申请日：2011-07-19

申请人： Yukihiko Okumura

发明人： Yukihiko Okumura

IPC分类号： G06F3/033

CPC分类号： H04B7/0877 ,  H04W52/0274 ,  H04W52/282 ,  H04W52/42 ,  Y02D70/164 ,  Y02D70/444

摘要： Power consumption is reduced in a diversity receiver. A diversity receiver (10) comprises a condition determination circuit (26) determining whether a predefined condition is satisfied; and a control circuit (28) suspending diversity reception if the condition determination circuit determines that the predefined condition is satisfied.

摘要翻译： 在分集接收机中功耗降低。 分集接收器（10）包括：条件确定电路（26），确定是否满足预定条件; 以及如果所述条件确定电路确定满足所述预定条件，则控制电路（28）暂停分集接收。

公开(公告)号：US20110214032A2

公开(公告)日：2011-09-01

申请号：US12673712

申请日：2008-08-13

申请人： Masayuki Furusawa ,  Yousuke Iizuka ,  Yukihiko Okumura

发明人： Masayuki Furusawa ,  Yousuke Iizuka ,  Yukihiko Okumura

IPC分类号： H03M13/29 ,  G06F11/10

CPC分类号： H04L1/1607 ,  H04L1/0061 ,  H04L1/0065

摘要： A data transmission method according to the present invention includes the steps of: (A) adding a first CRC code to transmission data; (B) dividing the transmission data to which the first CRC code has been added into a plurality of encoded bit sequences; (C) adding a second CRC code to at least one of the divided encoded bit sequences; (D) performing error correction encoding processing on the encoded bit sequences; and (E) transmitting the encoded bit sequences on which the error correction encoding processing has been performed.

摘要翻译： 根据本发明的数据传输方法包括以下步骤：（A）向发送数据添加第一CRC码; （B）将已经添加了第一CRC码的发送数据划分成多个编码比特序列; （C）向所分割的编码比特序列中的至少一个添加第二CRC码; （D）对编码的比特序列执行纠错编码处理; 和（E）发送已经执行了纠错编码处理的编码比特序列。

公开(公告)号：US07929592B1

公开(公告)日：2011-04-19

申请号：US09701705

申请日：2000-03-31

申请人： Yukihiko Okumura ,  Hidehiro Ando ,  Masafumi Usuda ,  Yoshihiro Ishikawa ,  Seizo Onoe

发明人： Yukihiko Okumura ,  Hidehiro Ando ,  Masafumi Usuda ,  Yoshihiro Ishikawa ,  Seizo Onoe

IPC分类号： H04B1/69 ,  H04B1/707

CPC分类号： H04L25/0234 ,  H04B1/707 ,  H04B1/7115 ,  H04B2201/70701 ,  H04L25/0228

摘要： A channel estimation value of data symbols of a data channel is calculated by weighting and averaging pilot symbols in a parallel time multiplexing method. Also, a channel estimation value of data symbols during each data symbol interval is calculated by dividing data symbols in a slot into a plurality of data symbol intervals, selecting pilot symbols suitable for calculation of a channel estimation value of data symbols during each data symbol interval and weighting and averaging that pilot symbols. Also, a fading frequency is detected based on an inner product value of pilot symbols. Weighting factors are changed based on the detected fading frequency. Also, a channel estimation value is calculated by weighting and averaging pilot signals using a plurality of weighting sequences. The calculated channel estimation value is used to demodulate received data.

摘要翻译： 通过并行时间复用方法对导频符号进行加权和平均来计算数据信道的数据符号的信道估计值。 此外，通过将时隙中的数据符号划分为多个数据符号间隔来计算每个数据符号间隔期间的数据符号的信道估计值，在每个数据符号间隔期间选择适合于计算数据符号的信道估计值的导频符号 并对该导频符号进行加权和平均。 此外，基于导频符号的内积值来检测衰落频率。 加权因子根据检测到的衰落频率而改变。 此外，通过使用多个加权序列对导频信号进行加权和平均来计算信道估计值。 所计算的信道估计值用于解调接收的数据。

公开(公告)号：US20100219884A1

公开(公告)日：2010-09-02

申请号：US12714771

申请日：2010-03-01

申请人： Hiromasa Fujii ,  Takahiro Asai ,  Yukihiko Okumura ,  Shigeru Tomisato ,  Masaharu Hata

发明人： Hiromasa Fujii ,  Takahiro Asai ,  Yukihiko Okumura ,  Shigeru Tomisato ,  Masaharu Hata

IPC分类号： G06G7/12

CPC分类号： H04L27/2624 ,  H04L27/2626 ,  H04L27/2647

摘要： There is provided a transmitter including a nonlinear input-output conversion characteristic control unit configured to determine a nonlinear input-output conversion characteristic for converting a signal depending on a usage status of a frequency band; an amplitude control unit configured to convert an amplitude of the signal based on the determined nonlinear input-output conversion characteristic; and a transmission power amplification unit configured to amplify power of the signal with the converted amplitude. There is also provided a transmitter including a nonlinear input-output conversion characteristic control unit configured to determine a nonlinear input-output conversion characteristic for converting a signal depending on a usage status of a frequency band; plural transmission power amplification units having different nonlinear input-output conversion characteristics; and a selecting unit configured to select one of the plural transmission power amplification units based on the determined nonlinear input-output conversion characteristic.

摘要翻译： 提供了一种发射机，包括：非线性输入 - 输出转换特性控制单元，被配置为根据频带的使用状态确定用于转换信号的非线性输入 - 输出转换特性; 幅度控制单元，被配置为基于所确定的非线性输入 - 输出转换特性来转换所述信号的幅度; 以及发送功率放大单元，被配置为以转换的幅度放大所述信号的功率。 还提供了一种发射机，包括：非线性输入 - 输出转换特性控制单元，被配置为根据频带的使用状态确定用于转换信号的非线性输入 - 输出转换特性; 具有不同非线性输入输出转换特性的多个发送功率放大单元; 以及选择单元，被配置为基于所确定的非线性输入 - 输出转换特性来选择所述多个发送功率放大单元中的一个。

公开(公告)号：US20090305736A1

公开(公告)日：2009-12-10

申请号：US12477587

申请日：2009-06-03

申请人： Hiroo OMORI ,  Yukihiko OKUMURA

发明人： Hiroo OMORI ,  Yukihiko OKUMURA

IPC分类号： H04B7/005

CPC分类号： H04W52/50 ,  H04W52/282 ,  H04W72/0473

摘要： A mobile communication terminal station is capable of transmitting a preamble part by use of optimal parameters for a moving speed of the mobile communication terminal station. The mobile communication terminal station is provided with a power ramping section. The power ramping section includes a moving state discrimination section for discriminating the moving state of the mobile communication terminal station and a power ramping transmission parameter selecting section for setting the transmission parameters in response to the moving state that has been discriminated. The preamble part indicating a transmission start of a message is transmitted to a base transceiver station, with the transmission parameters that have been set.

摘要翻译： 移动通信终端能够通过使用用于移动通信终端的移动速度的最佳参数来发送前导码部分。 移动通信终端设置有功率斜坡部分。 功率斜坡部分包括用于识别移动通信终端站的移动状态的移动状态判别部分和用于响应于已识别的移动状态设置传输参数的功率斜坡传输参数选择部分。 指示消息的发送开始的前导码部分被发送到基站收发台，其中已经设置了传输参数。

公开(公告)号：US20090291688A1

公开(公告)日：2009-11-26

申请号：US12463744

申请日：2009-05-11

申请人： Naoki UEHARA ,  Yukihiko Okumura ,  Hidetoshi Ebara

发明人： Naoki UEHARA ,  Yukihiko Okumura ,  Hidetoshi Ebara

IPC分类号： H04W36/00

CPC分类号： H04W36/30 ,  H04J11/0086 ,  H04W36/32 ,  H04W88/02

摘要： A mobile terminal used in a cellular mobile communication system is disclosed. The mobile terminal includes a measuring unit configured to measure reception levels of received signals; an averaging unit configured to average the measured reception levels based on a forgetting factor; a cell reselection unit configured to reselect a cell based on the averaged reception level; and a factor determining unit configured to determine the forgetting factor according to parameters sent from a network.

摘要翻译： 公开了一种在蜂窝移动通信系统中使用的移动终端。 移动终端包括：测量单元，被配置为测量接收信号的接收电平; 平均单元，被配置为基于遗忘因子来平均所测量的接收电平; 小区重选单元，被配置为基于所述平均接收电平重新选择小区; 以及因素确定单元，被配置为根据从网络发送的参数来确定遗忘因子。

公开(公告)号：US07277721B2

公开(公告)日：2007-10-02

申请号：US10380768

申请日：2002-07-23

申请人： Yukihiko Okumura ,  Shinsuke Ogawa

发明人： Yukihiko Okumura ,  Shinsuke Ogawa

IPC分类号： H04B7/00

CPC分类号： H04W52/40 ,  H04W52/08 ,  H04W52/10 ,  H04W52/12 ,  H04W52/241 ,  H04W52/50

摘要： A transmission power control device is provided that includes: a transmission loss calculator that calculates a transmission loss in the electric wave transmission path between a mobile station and each base station; and a transmission power control information determiner that determines which transmission power control information is to be used in a transmission power control operation at the mobile station, based on transmission power control information transmitted from each base station to the mobile station and the transmission loss in the transmission path between the mobile station and each base station calculated by the transmission loss calculator. This transmission power control device may further include an autonomous controller that increases transmission power from a current value in accordance with predetermined characteristics, regardless of transmission power control information from another communication device, when reception signal quality has become lower than a predetermined quality level. With this structure, after synchronization with a signal from the base station is established at the mobile station, the transmission power is controlled to increase from the initial value in accordance with the predetermined characteristics, regardless of the transmission power control information transmitted from the base station.

摘要翻译： 提供了一种传输功率控制装置，包括：传输损耗计算器，其计算移动站和每个基站之间的电波传输路径中的传输损耗; 以及发送功率控制信息确定器，其基于从每个基站向移动台发送的发送功率控制信息，确定在移动台的发送功率控制操作中要使用哪个发送功率控制信息，以及发送功率控制信息的发送功率控制信息 由传输损耗计算器计算的移动站与每个基站之间的传输路径。 该发送功率控制装置还可以包括：当接收信号质量低于预定质量水平时，与来自另一通信装置的发送功率控制信息无关，根据预定特性，从当前值增加发送功率的自主控制器。 利用这种结构，在与基站的信号同步之后，在移动站建立起来，不管基站发送的发送功率控制信息如何，发送功率被控制为根据预定特性从初始值增加 。

公开(公告)号：US20070173280A1

公开(公告)日：2007-07-26

申请号：US11727281

申请日：2007-03-26

申请人： Natsuhiko Nakayauchi ,  Norio Tomiyoshi ,  Osamu Yamano ,  Yukihiko Okumura

发明人： Natsuhiko Nakayauchi ,  Norio Tomiyoshi ,  Osamu Yamano ,  Yukihiko Okumura

IPC分类号： H04B7/00 ,  H04Q7/20

CPC分类号： H04W52/241 ,  H04W52/12

摘要： A receiving side compares measured quality of received data with target quality and performs variable control of a target SIR, as well as, compares that target SIR with measured SIR and transmits transmission-power information (TPC information) that is created based on the comparison result to a transmitting side, then the transmitting side performs control of the transmission power based on that transmission power control information. Furthermore, the receiving side monitors whether the transmission power has reached a limit, and stops update of the target SIR when the transmission power has reached the limit. Also, when the communication environment changes and it becomes possible to perform transmission power control, the receiving side restarts variable control of the target SIR.

摘要翻译： 接收侧将接收到的数据的质量与目标质量进行比较，并执行目标SIR的可变控制，并且将目标SIR与测量的SIR进行比较，并且发送基于比较结果创建的发送功率信息（TPC信息） 然后发送侧基于该发送功率控制信息进行发送功率的控制。 此外，接收侧监视发送功率是否达到限制，并且当发送功率达到极限时，停止目标SIR的更新。 此外，当通信环境改变并且可以执行发送功率控制时，接收侧重新开始目标SIR的可变控制。

公开(公告)号：US07142529B2

公开(公告)日：2006-11-28

申请号：US11226195

申请日：2005-09-15

申请人： Yukihiko Okumura ,  Hidehiro Ando

发明人： Yukihiko Okumura ,  Hidehiro Ando

IPC分类号： H04J3/06

CPC分类号： H04L1/0071 ,  H03M13/271 ,  H03M13/2789 ,  H03M13/2792 ,  H04L1/004 ,  H04L1/0041 ,  H04L1/0078 ,  H04L25/023 ,  H04L27/20 ,  H04L27/22

摘要： An effective data multiplexing method wherein an error correction ability is exerted at the maximum so that data transmission quality is improved and a data transmitting method in which an interleaving process applicable to data transmission using interpolation pilot signal is performed are provided. The data multiplexing method includes the steps of: coding input data for each input channel; multiplexing said data which is coded; performing an interleaving process on said data which is multiplexed; and outputting said data. In the data transmitting method, when an interleaving process is performed, an interleaver is used in which the number of columns of the interleaver is twice as many as the number of slots of a frame.

公开(公告)号：US07139243B2

公开(公告)日：2006-11-21

申请号：US09998601

申请日：2001-11-16

申请人： Yukihiko Okumura

发明人： Yukihiko Okumura

IPC分类号： G01R31/08 ,  H04B7/00 ,  H04B1/44

CPC分类号： H04L1/0071 ,  H04L1/0046 ,  H04L1/0054 ,  H04L1/0061 ,  H04L1/0075

摘要： A data transmission method etc. is provided. At a transmitting side, if a frame contains transmission data, frame data containing the transmission data and a calculated error-detecting code is generated. If the frame contains no transmission data, frame data containing neither transmission data nor an error-detecting code is generated. At a receiving side, one or more final bit positions of the frame data are assumed in the frame, transmission data and an error-detecting code are assumed in the frame, and the error-detecting code of the assumed transmission data is calculated. If there is a position where the assumed error-detecting code matches the error-detecting code calculated based on the assumed transmission data, it is decided that the position is the final bit position. Otherwise, it is decided that the frame contains no transmission data or that the received frame data contains an error.