公开(公告)号：US06909881B2

公开(公告)日：2005-06-21

申请号：US10204221

申请日：2002-01-18

申请人： Toshiyuki Uehara ,  Katsuhiko Hiramatsu ,  Kenichi Miyoshi ,  Kazuyuki Miya ,  Masayuki Hoshino

发明人： Toshiyuki Uehara ,  Katsuhiko Hiramatsu ,  Kenichi Miyoshi ,  Kazuyuki Miya ,  Masayuki Hoshino

IPC分类号： H04J13/00 ,  H04B1/707 ,  H04B7/005 ,  H04B7/26 ,  H04W28/14 ,  H04W52/04 ,  H04W52/24 ,  H04W52/40 ,  H04W72/08 ,  H04W72/14 ,  H04W84/04 ,  H04B1/00

CPC分类号： H04W28/14 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/0032 ,  H04L1/0034 ,  H04W52/24 ,  H04W52/40 ,  H04W72/085 ,  H04W72/14 ,  H04W84/04

摘要： A base station transmits downlink signals to mobile terminals of users A to C with respective transmission power corresponding to downlink quality. A downlink quality estimating section (106) uses the transmission power from a transmission power control section to compare transmission power between the users, and estimates that a terminal with low transmission power has high downlink quality. The priorities are determined so that the priority is increased as the transmission power is lower. Thus determined priority information is output to a scheduling section (107). The scheduling section (107) performs scheduling based on the priority information. The section (107) assigns DSCH to terminals in ascending order of transmission power. User A is first assigned DSCH, user B is second assigned DSCH, and user C is third assigned DSCH. It is thus possible to perform scheduling and MCS selection of DSCH with the need of information from a terminal eliminated.

摘要翻译： 基站以对应于下行链路质量的相应发送功率向用户A至C的移动终端发送下​​行链路信号。 下行链路质量估计部106使用来自发送功率控制部的发送功率来比较用户之间的发送功率，并且估计发送功率低的终端具有较高的下行链路质量。 确定优先级，使得优先级随着传输功率的降低而增加。 这样确定的优先级信息被输出到调度部分（107）。 调度部（107）基于优先级信息进行调度。 部分（107）以发送功率的升序将DSCH分配给终端。 用户A首先分配DSCH，用户B是第二分配DSCH，用户C是第三分配DSCH。 因此，可以根据消除来自终端的信息的需要来执行DSCH的调度和MCS选择。

公开(公告)号：US08971260B2

公开(公告)日：2015-03-03

申请号：US13056615

申请日：2009-08-03

申请人： Seigo Nakao ,  Hidetoshi Suzuki ,  Akihiko Nishio ,  Takahisa Aoyama ,  Katsuhiko Hiramatsu

发明人： Seigo Nakao ,  Hidetoshi Suzuki ,  Akihiko Nishio ,  Takahisa Aoyama ,  Katsuhiko Hiramatsu

IPC分类号： H04W4/00 ,  H04W72/04 ,  H04L5/00 ,  H04L27/26

CPC分类号： H04W56/001 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0053 ,  H04L27/2601 ,  H04L27/2647 ,  H04W72/0406 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/048 ,  H04W72/0493

摘要： Provided are a base station, a terminal, a band allocation method, and a downlink data communication method in which a mapping method for synchronization signals and report signals is implemented with high resource usage efficiency when a first system in which an independent single communication is allocated to a unit band co-exists with a second system in which a plurality of unit bands can be allocated to a single communication. In a base station (200), an OFDM signal generation unit (225) maps primary synchronization channel (P-SCH), secondary synchronization channel (S-SCH), primary broadcast channel (P-BCH), and dynamic broadcast channel (D-BCH), which can be decoded by both an LTE terminal and an LTE+ terminal, to some of a plurality of unit bands available to the station itself. The OFDM signal generation unit (225) also maps D-BCH+, which can be decoded only by an LTE+ terminal, to all of the plurality of unit bands to produce a multiplexed transmission signal. When the terminal which has transmitted terminal capability information is an LTE+ terminal, a control unit (265) transmits a band movement indication which indicates changes in the reception band to that terminal.

摘要翻译： 提供一种基站，终端，频带分配方法和下行链路数据通信方法，其中当分配独立单个通信的第一系统时，以高资源使用效率实现同步信号和报告信号的映射方法 到单位频带与其中可以将多个单位频带分配给单个通信的第二系统共存。 在基站（200）中，OFDM信号生成部（225）将主同步信道（P-SCH），辅同步信道（S-SCH），主广播信道（P-BCH）和动态广播信道 -BCH），其可以由LTE终端和LTE +终端解码到站本身可用的多个单位频带中的一些。 OFDM信号生成单元（225）还将仅能由LTE +终端解码的D-BCH +映射到所述多个单位频带的全部以产生复用的发送信号。 当具有发送终端能力信息的终端是LTE +终端时，控制单元（265）向该终端发送指示接收频带的变化的频带移动指示。

公开(公告)号：US08630579B2

公开(公告)日：2014-01-14

申请号：US12933056

申请日：2009-03-17

申请人： Ayako Horiuchi ,  Seigo Nakao ,  Yoshiko Saito ,  Katsuhiko Hiramatsu ,  Daichi Imamura

发明人： Ayako Horiuchi ,  Seigo Nakao ,  Yoshiko Saito ,  Katsuhiko Hiramatsu ,  Daichi Imamura

IPC分类号： H04B3/36

CPC分类号： H04J11/0069 ,  H04B1/70735 ,  H04B1/7083 ,  H04B7/15592 ,  H04B7/2606 ,  H04W72/0406 ,  H04W84/047

摘要： A wireless communication apparatus, method, and system selectively utilize advantages of both centralized control and distributed control while suppressing cell searching time. FIG. 4(a) represents an example in which a P-BCH (Primary Broadcast Channel) and an S-SCH (Secondary Synchronization Channel) for centralized control and a P-BCH and an S-SCH for distributed control are frequency-divided, and the P-BCH and the S-SCH for the distributed control are transmitted to a distributed control resource. FIG. 4(b) represents an example in which a P-BCH and an S-SCH for the centralized control and a P-BCH and an S-SCH for the distributed control are time-divided, and the P-BCH and the S-SCH for the distributed control are transmitted to a centralized control resource. Since a relay station transmits the P-SCH (Primary Synchronization Channel) as a centralized control resource, a mobile station can specify sub-frame timing by using only the centralized control resource.

摘要翻译： 无线通信装置，方法和系统选择性地利用集中控制和分布式控制的优点，同时抑制小区搜索时间。 图。 图4（a）表示用于集中控制的P-BCH（主广播信道）和S-SCH（辅同步信道）和用于分散控制的P-BCH和S-SCH被分频的例子， 用于分布式控制的P-BCH和S-SCH被发送到分布式控制资源。 图。 图4（b）表示用于集中控制的P-BCH和S-SCH以及用于分布式控制的P-BCH和S-SCH被分时间的例子，P-BCH和S- 用于分布式控制的SCH被发送到集中控制资源。 由于中继站将P-SCH（主同步信道）作为集中控制资源发送，因此移动台仅使用集中控制资源来指定子帧定时。

公开(公告)号：US08625573B2

公开(公告)日：2014-01-07

申请号：US12921549

申请日：2009-03-12

申请人： Yoshiko Saito ,  Ayako Horiuchi ,  Seigo Nakao ,  Katsuhiko Hiramatsu ,  Yuichi Kobayakawa ,  Megumi Ichikawa

发明人： Yoshiko Saito ,  Ayako Horiuchi ,  Seigo Nakao ,  Kenichi Miyoshi ,  Katsuhiko Hiramatsu ,  Yuichi Kobayakawa

IPC分类号： H04L12/28

CPC分类号： H04L5/003 ,  H04B7/022 ,  H04B7/026 ,  H04B7/15592 ,  H04B7/2606 ,  H04L1/1812 ,  H04L1/1893 ,  H04L5/0035 ,  H04L2001/0097 ,  H04W72/0406 ,  H04W84/047

摘要： There are provided a communication device, a base station, a communication system, and a communication method that make it possible to yield a diversity effect by cooperative relay without involvement of disproportionateness in data received by an eNB even when one of parties has unsuccessfully exchanged data. After received an ACK signal from a repeater 1, a repeater 2 which has transmitted a NACK signal in procedure 7 transmits data S2 to the eNB by use of its own resource, thereby making its own resource available for the repeater 1 (the repeater 2 does not use its own resource, and the repeater 1 uses the resource of the repeater 2). In procedures 8, the repeater 1 has received the NACK signal from the repeater 2 and subsequently transmits data S1 to the eNB by use of its own resource. Subsequently, the repeater 1 which has received the MACK signal in procedure 9 determines that the resource of the repeater 2 is available and transmits data P1 to the eNB by use of the resource of the repeater 2. In procedure 10, the repeater 1 transmits previously-generated data P2 to the eNB by use of its own resource.

摘要翻译： 提供了一种通信设备，基站，通信系统和通信方法，其可以通过协同中继产生分集效应，而不涉及由eNB接收的数据中的不成比例，即使当一方有成功交换的数据 。 在从中继器1接收到ACK信号之后，在过程7中发送了NACK信号的中继器2通过使用其自己的资源向eNB发送数据S2，从而使其自己的资源可用于中继器1（中继器2 不使用自己的资源，中继器1使用中继器的资源2）。 在过程8中，中继器1已经从中继器2接收到NACK信号，并且随后利用自己的资源向eNB发送数据S1。 随后，在过程9中接收到MACK信号的中继器1确定中继器2的资源可用，并且通过使用中继器2的资源将数据P1发送到eNB。在过程10中，中继器1先前 生成的数据P2通过使用其自己的资源到eNB。

公开(公告)号：US08532160B2

公开(公告)日：2013-09-10

申请号：US13651014

申请日：2012-10-12

申请人： Seigo Nakao ,  Daichi Imamura ,  Katsuhiko Hiramatsu

发明人： Seigo Nakao ,  Daichi Imamura ,  Katsuhiko Hiramatsu

IPC分类号： H04B1/707

CPC分类号： H04J11/005 ,  H04B1/713 ,  H04J13/0059 ,  H04J13/0074 ,  H04L5/0055 ,  H04L5/0057 ,  H04L5/0073 ,  H04W72/0413 ,  H04W72/042 ,  H04W88/08

摘要： A radio communication device capable of randomizing both inter-cell interference and intra-cell interference. In this device, a spreading section primarily spreads a response signal in a ZAC sequence set by a control unit. A spreading section secondarily spreads the primarily spread response signal in a block-wise spreading code sequence set by the control unit. The control unit controls the cyclic shift amount of the ZAC sequence used for the primary spreading in the spreading section and the block-wise spreading code sequence used for the secondary spreading in the spreading section according to a set hopping pattern. The hopping pattern set by the control unit is made up of two hierarchies. An LB-based hopping pattern different for each cell is defined in the first hierarchy in order to randomize the inter-cell interference. A hopping pattern different for each mobile station is defined in the second hierarchy to randomize the intra-cell interference.

公开(公告)号：US08351538B2

公开(公告)日：2013-01-08

申请号：US12673000

申请日：2008-08-12

申请人： Seigo Nakao ,  Daichi Imamura ,  Yoshihiko Ogawa ,  Atsushi Matsumoto ,  Katsuhiko Hiramatsu

发明人： Seigo Nakao ,  Daichi Imamura ,  Yoshihiko Ogawa ,  Atsushi Matsumoto ,  Katsuhiko Hiramatsu

IPC分类号： H04L27/00

CPC分类号： H04L5/0057 ,  H04B1/7075 ,  H04J11/0023 ,  H04J13/0062 ,  H04J13/0074 ,  H04L1/0026 ,  H04L1/0028 ,  H04L1/1607 ,  H04L5/0007 ,  H04L5/0016 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0055 ,  H04L27/00 ,  H04W24/02 ,  H04W72/0413 ,  H04W72/0446

摘要： It is possible to improve the CQI reception performance even when a delay is caused in a propagation path, a transmission timing error is caused, or a residual interference is generated between cyclic shift amounts of different ZC sequences. For the second symbol and the sixth symbol of the ACK/NACK signal which are multiplexed by RS of CQI, (+, +) or (−, −) is applied to a partial sequence of the Walsh sequence. For RS of CQI transmitted from a mobile station, + is added as an RS phase of the second symbol and − is added as an RS phase of the sixth symbol. A base station (100) receives multiplexed signals of ACK/NACK signals and CQI signals transmitted from a plurality of mobile stations. An RS synthesis unit (119) performs synthesis by aligning the RS phase of CQI.

摘要翻译： 即使在传播路径中引起延迟，导致发送定时误差，或者在不同ZC序列的循环移位量之间产生残留干扰，也可以提高CQI接收性能。 对于由CQI的RS复用的ACK / NACK信号的第二符号和第六符号，（+，+）或（ - ， - ）被应用于沃尔什序列的部分序列。 对于从移动站发送的CQI的RS，将+作为第二符号的RS相位相加，并且作为第六符号的RS相加。 基站（100）接收从多个移动台发送的ACK / NACK信号和CQI信号的复用信号。 RS合成单元（119）通过对齐CQI的RS相位进行合成。

公开(公告)号：US08145231B2

公开(公告)日：2012-03-27

申请号：US12968139

申请日：2010-12-14

申请人： Atsushi Matsumoto ,  Daichi Imamura ,  Takashi Iwai ,  Yoshihiko Ogawa ,  Tomofumi Takata ,  Katsuhiko Hiramatsu

发明人： Atsushi Matsumoto ,  Daichi Imamura ,  Takashi Iwai ,  Yoshihiko Ogawa ,  Tomofumi Takata ,  Katsuhiko Hiramatsu

IPC分类号： H04W72/08 ,  H04W72/04

CPC分类号： H04L5/0057 ,  H04J11/0023 ,  H04L5/001 ,  H04L5/0012 ,  H04L5/0048 ,  H04L5/005 ,  H04L5/0051 ,  H04L5/0062 ,  H04L27/2657 ,  H04L27/2662 ,  H04W72/042 ,  H04W72/0453 ,  H04W72/085 ,  H04W72/1268 ,  H04W84/042

摘要： Provided is a radio communication device which can prevent interference between SRS and PUCCH when the PUCCH transmission bandwidth fluctuates and suppress degradation of CQI estimation accuracy by the band where no SRS is transmitted. The device includes: an SRS code generation unit (201) which generates an SRS (Sounding Reference Signal) for measuring uplink line data channel quality; an SRS arrangement unit (202) which frequency-multiplexes the SRS on the SR transmission band and arranges it; and an SRS arrangement control unit (208) which controls SRS frequency multiplex so as to be uniform in frequency without modifying the bandwidth of one SRS multiplex unit in accordance with the fluctuation of the reference signal transmission bandwidth according to the SRS arrangement information transmitted from the base station and furthermore controls the transmission interval of the frequency-multiplexed SRS.

摘要翻译： 提供一种当PUCCH传输带宽波动时能够防止SRS与PUCCH之间的干扰的无线通信装置，并且通过不发送SRS的频带来抑制CQI估计精度的劣化。 该装置包括：SRS代码生成单元，生成用于测量上行线路数据信道质量的SRS（探测参考信号）; 在SR传输频带上对SRS进行频率复用并布置的SRS布置单元（202）; 以及SRS配置控制单元（208），其根据从所述SRS配置信息发送的SRS配置信息，根据所述参考信号传输带宽的波动来调整SRS频率复用以使其频率均匀，而不修改一个SRS多路复用单元的带宽 并且进一步控制频率复用SRS的发送间隔。

公开(公告)号：US20110205966A1

公开(公告)日：2011-08-25

申请号：US12989694

申请日：2009-06-16

申请人： Takashi Iwai ,  Katsuhiko Hiramatsu ,  Daichi Imamura ,  Akihiko Nishio ,  Seigo Nakao ,  Atsushi Sumasu ,  Yoshihiko Ogawa ,  Sadaki Futagi

发明人： Takashi Iwai ,  Katsuhiko Hiramatsu ,  Daichi Imamura ,  Akihiko Nishio ,  Seigo Nakao ,  Atsushi Sumasu ,  Yoshihiko Ogawa ,  Sadaki Futagi

IPC分类号： H04W4/00

CPC分类号： H04L27/0008 ,  H04B7/063 ,  H04B7/0639 ,  H04B7/0643 ,  H04B7/0689 ,  H04L1/0021 ,  H04L1/0029 ,  H04L5/0007 ,  H04L27/2636 ,  H04W52/367 ,  H04W52/42

摘要： Provided are a radio transmission device and a radio transmission method which can suppress lowering of the throughput caused by switching between the single carrier communication method and the multi-carrier communication method while suppressing increase of the signaling amount. A PHR threshold value setting unit (116) sets a threshold value Y1 at a position greater by a predetermined value than the PHR at which the throughput performance of the SC-FDMA coincides with that of the OFDMA. A trigger signal transmission judgment unit (117) judges that a mobile station transmits a trigger signal for switching from the OFDMA to the SC-FDMA if the PHR in the OFDMA communication method is lower than the threshold value Y1.

摘要翻译： 提供一种能够抑制在单载波通信方式和多载波通信方式之间切换的吞吐量的降低同时抑制信令量的增加的无线传输装置和无线传输方法。 PHR阈值设置单元（116）将阈值Y1设置在比SCDMA的吞吐量性能与OFDMA的吞吐量性能一致的PHR更大预定值的位置处。 如果OFDMA通信方法中的PHR低于阈值Y1，则触发信号发送判断单元（117）判断移动站发送用于从OFDMA切换到SC-FDMA的触发信号。

公开(公告)号：US20110170425A1

公开(公告)日：2011-07-14

申请号：US12993595

申请日：2009-05-13

申请人： Ayako Horiuchi ,  Seigo Nakao ,  Kenichi Miyoshi ,  Katsuhiko Hiramatsu ,  Hiroaki Morino

发明人： Ayako Horiuchi ,  Seigo Nakao ,  Kenichi Miyoshi ,  Katsuhiko Hiramatsu ,  Hiroaki Morino

IPC分类号： H04L12/26 ,  H04J3/08

CPC分类号： H04L1/1867 ,  H04B7/026 ,  H04B7/155 ,  H04B7/15592 ,  H04L2001/0097 ,  H04W40/22 ,  H04W72/08 ,  H04W84/047

摘要： Disclosed is a radio communication device capable of improving the usage efficiency of resources in multi-stage relay to reduce the amount of delay of a relay signal and improving the reception quality of signals by a relay station or a base station. A transmission determining unit 16 determines whether to transmit the relay signal and whether to transmit ACK/NACK on the basis of whether there is an error in the relay signal, and on the basis of ACK/NACK received from a one-hop-downstream radio communication device. An MCS determining unit 17 provided in the transmission determining unit 16 determines an MCS for the relay signal. A transmission instruction generated by the transmission determining unit 16 is output to a buffer 11 and an ACK/NACK generating unit 19. The determined MCS is output to an error correction coding unit 12 and a modulation unit 13. The ACK/NACK generating unit 19 generates ACK when there is no error in the relay signal, and generates NACK when there is an error in the relay signal.

摘要翻译： 公开了能够提高多级继电器中的资源的使用效率的无线通信装置，以减少中继信号的延迟量，并且提高中继站或基站对信号的接收质量。 传输确定单元16基于中继信号中是否存在错误，并且基于从一跳下行无线电接收的ACK / NACK来确定是否发送中继信号以及是否发送ACK / NACK 通讯装置 设在发送判定部16中的MCS判定部17判定为继电器信号的MCS。 由发送确定单元16产生的发送指令被输出到缓冲器11和ACK / NACK生成单元19.所确定的MCS被输出到纠错编码单元12和调制单元13. ACK / NACK生成单元19 当继电器信号没有错误时，产生ACK，当继电器信号发生错误时，产生NACK。

公开(公告)号：US07961695B2

公开(公告)日：2011-06-14

申请号：US12522781

申请日：2008-01-11

申请人： Masaru Fukuoka ,  Akihiko Nishio ,  Seigo Nakao ,  Katsuhiko Hiramatsu

发明人： Masaru Fukuoka ,  Akihiko Nishio ,  Seigo Nakao ,  Katsuhiko Hiramatsu

IPC分类号： H04B7/216

CPC分类号： H04L1/001 ,  H04J11/0026 ,  H04J13/16 ,  H04L1/0004 ,  H04L1/0026 ,  H04L1/0038 ,  H04L1/1812 ,  H04L5/0053 ,  H04W52/262 ,  H04W52/325 ,  H04W52/346 ,  H04W72/0466

摘要： Provided is a radio communication base station device capable of suppressing degradation of a signal error ratio characteristic for a mobile station in the vicinity of the cell center when a plurality of signals whose transmission power is to be controlled are frequency-multiplexed or code-multiplexed. In the device (100), a classification unit (118) classifies a plurality of DPCCH according to the MCS of SCCH into a plurality of groups based on the transmission power intensity. A spread code is allocated for each DPCCH according to the classification result. A spread code for spreading a response signal (ACK signal/NACK signal) is instructed to spread units (103-1 to 103-n). The spread units (103-1 to 103-n) spread the response signal by the spread code instructed from the classification unit (118). According to the classification result in the classification unit (118), a mapping unit (104) maps the response signal after the spread to one of the subcarriers constituting the OFDM symbol.

摘要翻译： 提供一种无线通信基站装置，其能够抑制当发送功率要被控制的多个信号被频率复用或码复用时，小区中心附近的移动台的信号差错率特性的劣化。 在设备（100）中，分类单元（118）基于发送功率强度将根据SCCH的MCS的多个DPCCH分类为多个组。 根据分类结果为每个DPCCH分配扩频码。 指示用于扩展响应信号（ACK信号/ NACK信号）的扩展码扩展单元（103-1至103-n）。 扩展单元（103-1至103-n）通过从分类单元（118）指示的扩展码扩展响应信号。 根据分类单元（118）的分类结果，映射单元（104）将扩展后的响应信号映射到构成OFDM符号的子载波之一。