公开(公告)号：US20110222525A1

公开(公告)日：2011-09-15

申请号：US12672253

申请日：2008-08-08

Applicant: Takaaki Kishigami ,  Atsushi Sumasu ,  Isamu Yoshii ,  Tomohiro Imai

Inventor： Takaaki Kishigami ,  Atsushi Sumasu ,  Isamu Yoshii ,  Tomohiro Imai

IPC: H04J1/00

CPC classification number: H04W16/12 ,  H04B17/382 ,  H04J11/005 ,  H04L5/0005 ,  H04L5/0037 ,  H04L5/006 ,  H04L5/0062 ,  H04L5/0094 ,  H04W72/082

Abstract: It is possible to realize reduction of inter-cell interference by an adaptive FFR with a low delay. A terminal (200) includes: an interference condition detection unit (209) which detects an interference condition of other cell to the local cell; a cell identification unit (210) which acquires signals for cell identification of each base station; and a sub-band selection unit (211) which selects a sub-band used for the downstream line transmission to the local station according to the interference condition detected by the interference condition detection unit (209) and the signals for cell identification of each base station obtained by the cell identification unit (210). Thus, the terminal (200) can autonomously select a small sub-band of inter-cell interference and to realize reduction of the inter-cell interference by the adaptive FFR with a low delay.

Abstract translation: 可以通过具有低延迟的自适应FFR来实现小区间干扰的降低。 终端（200）包括：干扰状况检测单元（209），其检测其他小区对本地小区的干扰状况; 小区识别单元，其获取每个基站的小区识别信号; 以及根据由干扰条件检测单元（209）检测到的干扰条件和每个基站的小区识别信号，选择用于到本地站的下行线路传输的子带的子带选择单元（211） 由小区识别单元（210）获得的站。 因此，终端（200）可以自主地选择小区间小区间干扰，并以低延迟实现自适应FFR的小区间干扰减少。

公开(公告)号：US08014454B2

公开(公告)日：2011-09-06

申请号：US10568450

申请日：2004-08-16

Applicant: Isamu Yoshii

Inventor： Isamu Yoshii

IPC: H04K1/10

CPC classification number: H04W52/346 ,  H04L27/2614 ,  H04L27/2626

Abstract: A multicarrier communication apparatus capable of reducing an amount of information required for feedback, making a range of transmission power fluctuation small, and achieving rapid convergence on a target transmission power is disclosed. With this apparatus, subcarrier pair determination section (1142) puts a plurality of subcarriers contained in a multicarrier signal into pairs, notifies combining section (106) of information pertaining to the pairs of subcarriers, combines received power of each pair of subcarriers, and outputs combined received power obtained in this manner to command producing section (1146). Target power storage section (1144) stores target power for received power in such a manner that SIR at the subject apparatus becomes a desired SIR. Command producing section (1146) compares combined received power for the pairs of subcarriers and target received power, produces a command indicating a difference in power between these two received powers, and generates a control signal containing the produced command.

Abstract translation: 公开了一种多载波通信装置，其能够减少反馈所需的信息量，使发送功率波动范围变小，并实现目标发送功率的快速收敛。 使用该装置，子载波对确定部（1142）将包含在多载波信号中的多个副载波成对地通知合成部（106），关于副载波对的信息，合成每对副载波的接收功率，以及输出 以这种方式获得的组合接收功率到命令产生部分（1146）。 目标电力存储部（1144）以将被摄体装置的SIR成为期望SIR的方式存储接收功率的目标功率。 命令产生部分（1146）比较副载波对和组合接收功率的组合接收功率，产生指示这两个接收功率之间的功率差的命令，并产生包含所产生的命令的控制信号。

公开(公告)号：US20110161772A1

公开(公告)日：2011-06-30

申请号：US13060634

申请日：2009-09-01

Applicant: Isamu Yoshii ,  Kenichi Kuri ,  Takaaki Kishigami

Inventor： Isamu Yoshii ,  Kenichi Kuri ,  Takaaki Kishigami

IPC: H03M13/05 ,  G06F11/10

CPC classification number: H03M13/1102 ,  H03M13/255 ,  H03M13/6306 ,  H04L1/0057 ,  H04L1/1819 ,  H04L1/1893

Abstract: Disclosed is a wireless communication device capable of always obtaining the optimum error rate characteristic and of keeping the number of retransmissions to a minimum for IR-based HARQ which uses LDPC encoding in the error correction encoding. With the device, an RV control unit (102) controls the system check bit transmission sequence such that all of the system check bits included in an LDPC code word are transmitted with the first transmission in sequence from the smallest column weight of a check matrix, and controls the transmission sequence of multiple RVs such that multiple RVs comprising only system check bits are transmitted in sequence from the smallest column weight when an RV is transmitted additionally after all of the parity bits included in an LDPC code word have been transmitted. In addition, a modulation unit (103) maps a symbol, composed of system check bits belonging to each of the multiple RVs and the transmission sequences of which are controlled by the RV control unit (102), to a signal point which differs from the signal point to which was mapped a symbol composed of the system check bits transmitted with the first transmission.

Abstract translation: 公开了一种无线通信设备，其能够始终将纠错编码中使用LDPC编码的基于IR的HARQ获得最佳误码率特性并将重发次数保持在最小。 利用该装置，RV控制单元（102）控制系统校验位传输序列，使得包括在LDPC码字中的所有系统校验位按照从校验矩阵的最小列权重开始的第一次传输， 并且控制多个RV的发送序列，使得仅在发送了包括在LDPC码字中的所有奇偶校验位之后，另外发送RV时，从最小列权重开始，依次发送仅包括系统校验位的多个RV。 此外，调制单元（103）将属于多个RV中的每一个的系统校验位和由RV控制单元（102）控制的发送序列组成的符号映射到不同于 信号点被映射到由第一传输发送的系统校验位组成的符号。

公开(公告)号：US07853217B2

公开(公告)日：2010-12-14

申请号：US12063841

申请日：2006-08-17

Applicant: Isamu Yoshii ,  Eiko Seidel ,  Christian Wengerter ,  Alexander Golitschek Edler Von Elbwart ,  Kenichi Miyoshi ,  Daichi Imamura ,  Akihiko Nishio ,  Kenichi Kuri

Inventor： Isamu Yoshii ,  Eiko Seidel ,  Christian Wengerter ,  Alexander Golitschek Edler Von Elbwart ,  Kenichi Miyoshi ,  Daichi Imamura ,  Akihiko Nishio ,  Kenichi Kuri

IPC: H04B17/00

CPC classification number: H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/0026 ,  H04L5/0046 ,  H04L5/006 ,  H04L27/2626 ,  H04L27/2647

Abstract: A wireless communication terminal apparatus and a CQI selecting method wherein when CQIs are grouped according to their levels and then an upper-order CQI, which is indicative of a group, is to be informed in a longer period, while a lower-order CQI, which identifies a CQI in the group, being to be informed in a shorter period, the CQI is precisely selected. A reception SIR range of 0-4 dB in UE corresponds to a level 1 of upper-order CQI. A next reception SIR range of 4-8 dB corresponds to a level 2 of upper-order CQI. Similarly, the following SIR ranges up to 24 dB, each of which is 4 dB higher than a respective previous one, correspond to the respective following levels of upper-order CQI. On the other hand, the levels 1-4 of lower-order CQI, with which the level 1 of upper-order CQI is associated, correspond to a SIR range of −1-5 dB. The levels 1-4 of lower-order CQI, with which the level 2 of upper-order CQI is associated, correspond to a SIR range of 2-9 dB. Thus, the SIR ranges, to which the lower-order CQIs correspond, overlap the respective SIR ranges corresponding to the respective adjacent levels of upper-order CQIs with which the lower-order CQIs are associated.

Abstract translation: 一种无线通信终端装置和CQI选择方法，其中当CQI被根据其级别分组，然后是指示组的高阶CQI将被更长时间通知时，而低阶CQI， 其识别组中的CQI，在较短的周期内被通知，精确地选择CQI。 UE中0-4dB的接收SIR范围对应于高阶CQI的1级。 4-8dB的下一个接收SIR范围对应于高阶CQI的2级。 类似地，高达24dB的以下SIR范围对应于上一级CQI的各个后续级别，每个高达24dB的每一个高于相应的前一个。 另一方面，高阶CQI的等级1与其相关联的低阶CQI的级别1-4对应于-1.5dB的SIR范围。 与高阶CQI的2级相关联的低阶CQI的级别1-4对应于2-9dB的SIR范围。 因此，低阶CQI对应的SIR范围与对应于低阶CQI相关联的高阶CQI的各个相邻级别的各个SIR范围重叠。

公开(公告)号：US07796938B2

公开(公告)日：2010-09-14

申请号：US11658573

申请日：2005-07-07

Applicant: Akihiko Nishio ,  Kenichi Miyoshi ,  Isamu Yoshii

Inventor： Akihiko Nishio ,  Kenichi Miyoshi ,  Isamu Yoshii

IPC: H04H20/71 ,  H04H60/09 ,  H04B1/00 ,  H04B7/00 ,  H04W4/00

CPC classification number: H04L1/0021 ,  H04B17/382 ,  H04L1/0026 ,  H04L5/003 ,  H04L2001/0093 ,  H04W52/32 ,  H04W72/005

Abstract: A radio transmission apparatus and method for multicasting or broadcasting common data to a plurality of radio receiving apparatuses. The apparatus and method acquire per-subcarrier reception quality information from a radio receiving apparatus. A subcarrier is selected for the multicasting or broadcasting among a plurality of subcarriers, each of which has a different frequency, based on the acquired per-subcarrier reception quality information. And the transmission power of the selected subcarrier is controlled.

Abstract translation: 一种用于向多个无线电接收装置组播或广播公共数据的无线电发射装置和方法。 该装置和方法从无线接收装置获取每副载波接收质量信息。 基于所获取的每副载波接收质量信息，在多个子载波中选择副载波以进行多播或广播，每个子载波具有不同的频率。 并且控制所选副载波的发射功率。

公开(公告)号：US20100172278A1

公开(公告)日：2010-07-08

申请号：US12160871

申请日：2007-01-16

Applicant: Akihiko Nishio ,  Hidetoshi Suzuki ,  Isamu Yoshii ,  Kenichi Miyoshi

Inventor： Akihiko Nishio ,  Hidetoshi Suzuki ,  Isamu Yoshii ,  Kenichi Miyoshi

IPC: H04H20/71 ,  H04W52/04

CPC classification number: H04W52/42

Abstract: Provided is a radio transmission device capable of improving reception accuracy of a unicast channel received after a multicast channel. In the radio transmission device, a multicast transmission power control unit (106) performs control to reduce the transmission power of the OFDM symbol at the end of a sub frame for a multicast signal outputted from a CP insertion unit (105-2). A radio transmission unit (108) transmits a unicast signal multiplexed by a sub frame multiplexing unit (107) and a multicast signal of controlled transmission power via a transmission antenna (109).

Abstract translation: 提供一种能够提高在多播信道之后接收到的单播信道的接收精度的无线发送装置。 在无线发送装置中，组播发送功率控制部（106）进行控制，以减少从CP插入部（105-2）输出的多播信号的子帧结束时的OFDM符号的发送功率。 无线发送单元（108）经由发送天线（109）发送由子帧复用单元（107）复用的单播信号和受控发送功率的多播信号。

公开(公告)号：US20090252092A1

公开(公告)日：2009-10-08

申请号：US11721780

申请日：2005-12-15

Applicant: Isamu Yoshii

Inventor： Isamu Yoshii

IPC: H04W4/00 ,  H04L27/28 ,  H04J11/00

CPC classification number: H04L5/0048 ,  H04B2201/70701 ,  H04J13/18 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/1438 ,  H04W48/20

Abstract: A communication terminal apparatus and the like wherein even under an environment that the propagation path characteristic is different for each of frequency bands of OFDM signals, the error rates of all the frequency bands are reduced to improve the communication rate. In this apparatus, a connection destination deciding part (221) compares the correlation values of the respective sub-bands for cells (A-D) received from correlation value calculating parts (213-1,213-2,213-3) to determine a sub-band ID that exhibits the highest correlation value in each sub-band. Then, a base station apparatus (100) corresponding to the determined sub-band ID is decided as a connection destination in that sub-band, and the thus decided base station apparatus (100) for each sub-band is notified to an access request signal generating part (222) and to a received data generating part (231).

Abstract translation: 一种通信终端装置等，其中即使在OFDM信号的频带中的传播路径特性不同的环境下，也减少了所有频带的错误率，以提高通信速率。 在该装置中，连接目的地决定部221比较从相关值计算部（213-1,213-2,213-3）接收到的小区（AD）的各子带的相关值，以确定子带ID， 在每个子带中表现出最高的相关值。 然后，将与所确定的子带ID相对应的基站装置（100）确定为该子带中的连接目的地，并将每个子带的所决定的基站装置（100）通知接入请求 信号产生部分（222）和接收数据产生部分（231）。

公开(公告)号：US07561894B2

公开(公告)日：2009-07-14

申请号：US10528120

申请日：2003-09-18

Applicant: Akihiko Nishio ,  Makis Kasapidis ,  Katsuhiko Hiramatsu ,  Isamu Yoshii ,  Toshiyuki Uehara ,  Katsuyoshi Naka

Inventor： Akihiko Nishio ,  Makis Kasapidis ,  Katsuhiko Hiramatsu ,  Isamu Yoshii ,  Toshiyuki Uehara ,  Katsuyoshi Naka

IPC: H04B7/00 ,  H04Q7/20

CPC classification number: H04W52/322 ,  H04W52/08 ,  H04W52/325 ,  H04W52/327

Abstract: In order to appropriately control transmit power of a common channel for an MBMS (Multimedia Broadcast/Multicast Service) so as not to become excessive, a mobile station 1 transmits a TPC command for an S-CCPCH to a base station through an uplink DPCH1 and a mobile station 2 transmits a TPC command for an S-CCPCH to the base station through an uplink DPCH2. When either one of the TPC command for the S-CCPCH transmitted from the mobile station 1 and the TPC command for the S-CCPCH transmitted from the mobile station 2 is a TPC command instructing “Up”, the base station increases transmit power of the downlink S-CCPCH and decreases transmit power of the downlink S-CCPCH when both TPC commands instruct “Down”.

Abstract translation: 为了适当地控制用于MBMS（多媒体广播/组播业务）的公共信道的发送功率以不变得过大，移动台1通过上行链路DPCH1向基站发送用于S-CCPCH的TPC命令， 移动站2通过上行链路DPCH2向基站发送用于S-CCPCH的TPC命令。 当从移动台1发送的用于S-CCPCH的TPC命令和从移动台2发送的用于S-CCPCH的TPC命令中的任一个是指示“Up”的TPC命令时，基站增加发送功率 下行S-CCPCH，并且当两个TPC命令指示“Down”时，降低下行链路S-CCPCH的发送功率。

公开(公告)号：US20090111384A1

公开(公告)日：2009-04-30

申请号：US12063841

申请日：2006-08-17

Applicant: Isamu Yoshii ,  Eiko Seidel ,  Christian Wengerter ,  Alexander Golitschek Edler Von Elbwart ,  Kenichi Miyoshi ,  Daichi Imamura ,  Akihiko Nishio ,  Kenichi Kuri

Inventor： Isamu Yoshii ,  Eiko Seidel ,  Christian Wengerter ,  Alexander Golitschek Edler Von Elbwart ,  Kenichi Miyoshi ,  Daichi Imamura ,  Akihiko Nishio ,  Kenichi Kuri

IPC: H04B17/00

CPC classification number: H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/0026 ,  H04L5/0046 ,  H04L5/006 ,  H04L27/2626 ,  H04L27/2647

Abstract: A wireless communication terminal apparatus and a CQI selecting method wherein when CQIs are grouped according to their levels and then an upper-order CQI, which is indicative of a group, is to be informed in a longer period, while a lower-order CQI, which identifies a CQI in the group, being to be informed in a shorter period, the CQI is precisely selected. A reception SIR range of 0-4 dB in UE corresponds to a level 1 of upper-order CQI. A next reception SIR range of 4-8 dB corresponds to a level 2 of upper-order CQI. Similarly, the following SIR ranges up to 24 dB, each of which is 4 dB higher than a respective previous one, correspond to the respective following levels of upper-order CQI. On the other hand, the levels 1-4 of lower-order CQI, with which the level 1 of upper-order CQI is associated, correspond to a SIR range of −1-5 dB. The levels 1-4 of lower-order CQI, with which the level 2 of upper-order CQI is associated, correspond to a SIR range of 2-9 dB. Thus, the SIR ranges, to which the lower-order CQIs correspond, overlap the respective SIR ranges corresponding to the respective adjacent levels of upper-order CQIs with which the lower-order CQIs are associated.

Abstract translation: 一种无线通信终端装置和CQI选择方法，其中当CQI被根据其级别分组，然后是指示组的高阶CQI将被更长时间通知时，而低阶CQI， 其识别组中的CQI，在较短的周期内被通知，精确地选择CQI。 UE中0-4dB的接收SIR范围对应于高阶CQI的1级。 4-8dB的下一个接收SIR范围对应于高阶CQI的2级。 类似地，高达24dB的以下SIR范围对应于上一级CQI的各个后续级别，每个高达24dB的每一个高于相应的前一个。 另一方面，高阶CQI的等级1与其相关联的低阶CQI的级别1-4对应于-1.5dB的SIR范围。 与高阶CQI的2级相关联的低阶CQI的级别1-4对应于2-9dB的SIR范围。 因此，低阶CQI对应的SIR范围与对应于低阶CQI相关联的高阶CQI的各个相邻级别的各个SIR范围重叠。

公开(公告)号：US20090059854A1

公开(公告)日：2009-03-05

申请号：US12160197

申请日：2007-01-12

Applicant: Akihiko Nishio ,  Isamu Yoshii ,  Hidetoshi Suzuki

Inventor： Akihiko Nishio ,  Isamu Yoshii ,  Hidetoshi Suzuki

IPC: H04W28/00

CPC classification number: H04W24/10 ,  H04J11/0069 ,  H04L5/0023 ,  H04L5/0053

Abstract: Provided is a base station capable of searching cells of different frequencies without losing a chance of data communication by effectively performing SCH data communication. The base station (100) includes: an encoding unit (101) for encoding SCH data; a modulation unit (102) for modulating the encoded SCH data; encoding units (103-1 to 103-N) for encoding user data (#1 to #N), modulation units (104-1 to 104-N) for modulating the encoded user data (#1 to #N); a frame format setting unit (105) for setting a frame format of each frame; and an IFFT unit (106) for mapping the SCH data and the user data (#1 to #N) to sub carriers (#1 to #K) and performing IFFT to generate an OFDM symbol. The frame format setting unit (105) changes the data communication sub frame for each frame so as to change the position of the data communication section within a frame for each frame.

Abstract translation: 提供了一种能够通过有效地进行SCH数据通信而不失去数据通信的机会来搜索不同频率的小区的基站。 基站（100）包括：编码单元（101），用于对SCH数据进行编码; 调制单元（102），用于调制编码的SCH数据; 用于编码用户数据（＃1至#N）的编码单元（103-1至103-N），用于调制编码用户数据（＃1至#N）的调制单元（104-1至104-N） 帧格式设置单元，用于设置每帧的帧格式; 以及用于将SCH数据和用户数据（＃1至#N）映射到子载波（＃1至#K）并执行IFFT以生成OFDM符号的IFFT单元（106）。 帧格式设置单元（105）改变每帧的数据通信子帧，以便在每帧的帧内改变数据通信部分的位置。