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公开(公告)号：US20150341147A1
公开(公告)日：2015-11-26
申请号：US14799443
申请日：2015-07-14
Inventor： Zhi Zhang , Ming Xu , Masayuki Hoshino , Seigo Nakao , Daichi Imamura
CPC classification number: H04J13/004 , H04J13/0048 , H04J13/12 , H04J13/18 , H04L5/0007 , H04L5/0016 , H04L5/0026 , H04L5/0048 , H04L5/0051 , H04L5/0066 , H04L43/087
Abstract: The present disclosure provides an orthogonal codes based code division multiplexing method of performing the code division multiplexing of demodulation reference signals in multiple layers of resource blocks by using orthogonal matrices, the method comprising: changing the order of chips in particular rows of a first orthogonal matrix to obtain a second orthogonal matrix with the changed order of chips; and multiplying the chips in respective rows of the second orthogonal matrix by the demodulation reference signals in corresponding layers of resource blocks correspondingly in the time direction to obtain code division multiplexing signals. The technical scheme of the present disclosure can improve the power jitter situation of downlink signals on the time, thereby the usage efficiency of the power amplifier at the base station side can be improved.
Abstract translation: 本公开提供了一种基于正交码的码分复用方法，其通过使用正交矩阵来执行多层资源块中的解调参考信号的码分复用，所述方法包括：改变第一正交矩阵的特定行中的码片的顺序 以获得具有改变的码片顺序的第二正交矩阵; 并将第二正交矩阵的各行中的码片乘以相应于时间方向的资源块的相应层中的解调参考信号，以获得码分复用信号。 本公开的技术方案可以提高下行链路信号的功率抖动情况，从而可以提高基站侧的功率放大器的使用效率。
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公开(公告)号：US20150333851A1
公开(公告)日：2015-11-19
申请号：US14811464
申请日：2015-07-28
Inventor： Atsushi Sumasu , Daichi Imamura , Ayako Horiuchi , Yasuaki Yuda
IPC: H04B17/309 , H04L27/26 , H04L12/18 , H04L5/00
CPC classification number: H04W52/0216 , H04B17/309 , H04J11/005 , H04J11/0053 , H04J11/0056 , H04L5/0007 , H04L5/005 , H04L12/18 , H04L12/189 , H04L27/12 , H04L27/2611 , H04W24/08 , H04W52/0206 , H04W72/005 , Y02D70/00 , Y02D70/1262 , Y02D70/1264 , Y02D70/25
Abstract: The transmission of a reference signal, such as a CSI-RS, is enabled while maintaining a power saving effect when performing inter-cell cooperative transmission/reception or the like in a plurality of cells. In order to realize inter-cell cooperative transmission/reception, a CSI-RS which is used for estimating the state of a spatial propagation path of a communication line is generated by a CSI-RS generation unit, and the CSI-RS is disposed in a predetermined subframe by a disposition unit and transmitted. At this time, when a frame has ten subframes #0 to #9, the CSI-RS is disposed in the subframes #4 and #9, which are subframes excluding the subframes #0 and #5 incapable of transmitting a CSI-RS and are subframes other than subframes capable of acting as MBSFN subframes when discontinuous communication (Extended Cell DTX) is performed so as to achieve power saving, and transmitted.
Abstract translation: 在多个小区中执行小区间协作发送/接收等时，能够保持诸如CSI-RS的参考信号的发送，同时保持省电效果。 为了实现小区间协作发送接收，通过CSI-RS生成单元生成用于估计通信线路的空间传播路径的状态的CSI-RS，将CSI-RS配置在 预定的子帧由配置单元发送。 此时，当帧具有十个子帧＃0至＃9时，CSI-RS被布置在子帧＃4和＃9中，子帧＃不是不能发送CSI-RS的子帧＃0和＃5的子帧， 是在执行不连续通信（扩展小区DTX）时能够作为MBSFN子帧的子帧之外的子帧，以实现省电并被发送。
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公开(公告)号：US20150312017A1
公开(公告)日：2015-10-29
申请号：US14795334
申请日：2015-07-09
Inventor： Shinsuke Takaoka , Daichi Imamura , Kenichi Miyoshi
CPC classification number: H04L5/0073 , H04B7/024 , H04J11/0053 , H04J11/0079 , H04L1/00 , H04L5/0023 , H04L5/0035 , H04L5/0082 , H04L25/03343 , H04L25/03904 , H04L25/03955 , H04L2025/03777 , H04W24/02 , H04W28/06 , H04W48/00 , H04W72/042 , H04W72/08 , H04W92/20
Abstract: A communication apparatus comprises a generator that generates frequency resource position information corresponding to a first information which is based on the communication quality information received from user equipments, the frequency resource position information indicating validity or invalidity of the first information for each frequency resource, and a transmitter that transmits the first information, the frequency resource position information and a cell ID which the frequency resource position is applied, to another communication apparatus via a backhaul.
Abstract translation: 通信装置包括发生器，其生成与基于从用户设备接收的通信质量信息相对应的第一信息的频率资源位置信息，表示每个频率资源的第一信息的有效性或无效性的频率资源位置信息，以及 发送器，其经由回程将第一信息，频率资源位置信息和应用频率资源位置的小区ID发送到另一通信装置。
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44.发明授权Integrated circuit for transmitting and receiving reference signal in radio communication 有权用于在无线电通信中发送和接收参考信号的集成电路公开(公告)号：US09167589B2
公开(公告)日：2015-10-20
申请号：US14699890
申请日：2015-04-29
Inventor： Tomofumi Takata , Daichi Imamura , Seigo Nakao , Sadaki Futagi , Takashi Iwai , Yoshihiko Ogawa
CPC classification number: H04L5/0048 , H04B7/0632 , H04J11/00 , H04J13/0003 , H04J13/0055 , H04J13/0059 , H04J13/0074 , H04J13/10 , H04L5/0007 , H04L5/0057 , H04L25/0204 , H04L25/0208 , H04L25/0228 , H04L27/2695 , H04W72/0413 , H04W72/0446 , H04W72/082 , H04W88/02
Abstract: It is possible to provide a radio communication terminal device and a radio transmission method which can improve reception performance of a CQI and a reference signal. A phase table storage unit stores a phase table which correlates the amount of cyclic shift to complex coefficients {w1, w2} to be multiplied on the reference signal. A complex coefficient multiplication unit reads out a complex coefficient corresponding to the amount of cyclic shift indicated by resource allocation information, from the phase table storage unit and multiplies the read-out complex coefficient on the reference signal so as to change the phase relationship between the reference signals in a slot.
Abstract translation: 可以提供可以提高CQI的接收性能和参考信号的无线通信终端装置和无线发送方法。 相位表存储单元存储将循环移位量与要参考信号相乘的复系数{w1，w2}相关联的相位表。 复系数乘法单元从相位表存储单元读出与由资源分配信息指示的循环移位量相对应的复数系数，并将读出的复数系数与参考信号相乘，以便改变相关关系 参考信号在一个插槽。
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公开(公告)号：US09155086B2
公开(公告)日：2015-10-06
申请号：US14624225
申请日：2015-02-17
Inventor： Akihiko Nishio , Daichi Imamura
CPC classification number: H04W72/0413 , H04B1/713 , H04L1/0026 , H04L1/0027 , H04L1/0029 , H04L1/0072 , H04L5/0023 , H04L5/0048 , H04L5/0053 , H04L5/0055 , H04L5/0091 , H04W72/0406 , H04W72/042
Abstract: Provided are a communication device and an SRS transmission method capable of reducing the possibility of a difference in recognition between the presence or absence of an SRS transmission between a base station and a terminal or of an SRS resource so as to prevent degradation of system throughput. At a terminal (200), a reception processing unit (203) detects control information indicating whether or not to request transmission of a sounding reference signal (SRS), whereupon a transmission signal forming unit (207) transmits an A-SRS by way of control by a transmission control unit (206) on the basis of control information. The transmission control unit (206) determines whether or not to execute SRS transmission on the basis of an “SRS Transmission Execution Rule” and the reception status of trigger information.
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Patent Agency Ranking
公开(公告)号：US20150263842A1
公开(公告)日：2015-09-17
申请号：US14725529
申请日：2015-05-29
Inventor： Seigo Nakao , Daichi Imamura
CPC classification number: H04L5/0055 , H04J3/16 , H04L5/0007 , H04L5/001 , H04L5/0048 , H04L5/0053 , H04L5/0094
Abstract: This invention relates to a terminal apparatus that can possibly reduce situations in which upstream channel data are punctured by a plurality of response signals. When having received at least one piece of downstream allocation control information corresponding to a second downstream unit band, which is other than a first downstream unit band, of a plurality of unit bands, a control unit (208) maps a plurality of response signals, which are corresponding to the respective ones of the plurality of downstream unit bands established, to a first resource corresponding to the plurality of downstream unit bands established. When having received only the downstream allocation control information corresponding to the first downstream unit band of the plurality of unit bands established, the control unit (208) maps the response signal, which is corresponding to the first downstream unit band, to a second resource corresponding to the first downstream unit band.
Abstract translation: 本发明涉及一种能够减少多个响应信号对上游信道数据进行穿孔的情况的终端装置。 当接收到多个单位频带中不同于第一下行单位频带的第二下行单位频带的至少一条下游分配控制信息时，控制单元（208）映射多个响应信号， 对应于建立的多个下游单位频带中的各个下行单位频带中的各个对应于建立的多个下游单位频带的第一资源。 当仅接收到与所建立的多个单位频带中的第一下游单位频带相对应的下行分配控制信息时，控制单元将对应于第一下游单位频带的响应信号映射到相应的第二资源对应 到第一个下游单位频带。
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公开(公告)号：US20150156795A1
公开(公告)日：2015-06-04
申请号：US14619615
申请日：2015-02-11
Inventor： Seigo Nakao , Akihiko Nishio , Ayako Horiuchi , Daichi Imamura
CPC classification number: H04W72/0413 , H04L1/0061 , H04L1/08 , H04L1/1671 , H04L1/1854 , H04W28/04 , H04W52/0212 , H04W72/04 , H04W72/1278 , H04W72/1284 , H04W76/28 , Y02D70/1262 , Y02D70/1264 , Y02D70/25
Abstract: Provided are a terminal device and a retransmission control method that make it possible to minimize increases in overhead in an uplink control channel (PUCCH), even if channel selection is used as the method to transmit response signals during carrier-aggregation communication using a plurality of downlink unit bands. On the basis of the generation status of uplink data and error-detection results obtained by a CRC unit, a control unit in the provided terminal uses response signal transmission rules to control the transmission of response signals or uplink control signals that indicate the generation of uplink data. If an uplink control signal and a response signal are generated simultaneously within the same transmission time unit, the control unit changes the resources allocated to the response signal and/or the phase point of the response signal in accordance with the number and position of ACKs within the error-detection result pattern.
Abstract translation: 提供一种终端装置和重发控制方法，即使使用信道选择作为在使用多个的载波聚合通信的载波聚合通信期间发送响应信号的方法，也可以使上行链路控制信道（PUCCH）的开销的上升最小化 下行单位频带。 基于上行链路数据的生成状态和由CRC单元获得的错误检测结果，所提供的终端中的控制单元使用响应信号传输规则来控制响应信号的传输或指示上行链路的生成的上行链路控制信号 数据。 如果在相同传输时间单元内同时产生上行链路控制信号和响应信号，则控制单元根据响应信号的数量和位置来改变响应信号和/或响应信号的相位点的资源 错误检测结果模式。
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公开(公告)号：US20150117432A1
公开(公告)日：2015-04-30
申请号：US14588712
申请日：2015-01-02
Inventor： Atsushi Sumasu , Daichi Imamura , Ayako Horiuchi , Yasuaki Yuda
CPC classification number: H04W52/0216 , H04B17/309 , H04J11/005 , H04J11/0053 , H04J11/0056 , H04L5/0007 , H04L5/005 , H04L12/18 , H04L12/189 , H04L27/12 , H04L27/2611 , H04W24/08 , H04W52/0206 , H04W72/005 , Y02D70/00 , Y02D70/1262 , Y02D70/1264 , Y02D70/25
Abstract: The transmission of a reference signal, such as a CSI-RS, is enabled while maintaining a power saving effect when performing inter-cell cooperative transmission/reception or the like in a plurality of cells. In order to realize inter-cell cooperative transmission/reception, a CSI-RS which is used for estimating the state of a spatial propagation path of a communication line is generated by a CSI-RS generation unit, and the CSI-RS is disposed in a predetermined subframe by a disposition unit and transmitted. At this time, when a frame has ten subframes #0 to #9, the CSI-RS is disposed in the subframes #4 and #9, which are subframes excluding the subframes #0 and #5 incapable of transmitting a CSI-RS and are subframes other than subframes capable of acting as MBSFN subframes when discontinuous communication (Extended Cell DTX) is performed so as to achieve power saving, and transmitted.
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49.发明申请公开(公告)号：US20150103939A1
公开(公告)日：2015-04-16
申请号：US14575298
申请日：2014-12-18
Inventor： Qian Yu , Lei Huang , Masayuki Hoshino , Daichi Imamura
IPC: H04B7/04
CPC classification number: H04B7/0456 , H04B7/002 , H04B7/0413 , H04B7/0469 , H04B7/0617 , H04B7/0634 , H04B7/0639 , H04B7/0691 , H04B7/10 , H04L25/0224 , H04L25/0248 , H04L25/03898 , H04L25/03961 , H04L2025/03808
Abstract: In a MIMO system using a cross-polarized antenna structure, even if no ideal XPD can be obtained, the interference between different polarized waves can be reduced to allow an effective precoding to be executed. When a MIMO communication is performed between a transmitter and a receiver each using a cross-polarized antenna structure, a channel estimating and precoding selection section of the receiver performs a channel estimation of MIMO channels from the transmitter to the receiver, decides a precoding matrix of a projection matrix for mutually orthogonalizing or substantially orthogonalizing the channel response matrixes for respective different polarized waves, and feeds the determined precoding matrix back to the transmitter. In the transmitter, a precoding processing section applies the precoding matrix to the spatial stream corresponding to one of the polarized waves to perform a precoding, thereby allowing the transmitter to transmit the polarized waves with the orthogonality therebetween maintained.
Abstract translation: 在使用交叉极化天线结构的MIMO系统中，即使不能获得理想的XPD，也可以减小不同极化波之间的干扰，从而实现有效的预编码。 当在使用交叉极化天线结构的发射机和接收机之间进行MIMO通信时，接收机的信道估计和预编码选择部分执行从发射机到接收机的MIMO信道的信道估计，确定预编码矩阵 用于相互正交化或基本正交化用于各个不同极化波的信道响应矩阵的投影矩阵，并将所确定的预编码矩阵馈送给发射机。 在发射机中，预编码处理部分将预编码矩阵应用于与一个极化波相对应的空间流，以执行预编码，从而允许发射机以保持它们之间的正交性的方式发送极化波。
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公开(公告)号：US20150103794A1
公开(公告)日：2015-04-16
申请号：US14573901
申请日：2014-12-17
Inventor： Masayuki Hoshino , Akihiko Nishio , Seigo Nakao , Daichi Imamura , Yasuaki Yuda
CPC classification number: H04W72/04 , H04B7/0626 , H04B17/0085 , H04B17/24 , H04L1/0003 , H04L1/0009 , H04L1/0027 , H04L1/1607 , H04L5/0048 , H04W24/10 , H04W72/1268 , H04W88/02
Abstract: To suppress concentration of channel quality information requests and reports in a case of discontinuously transmitting reference signals at specific resources in a time domain, and thereby preventing degradation in throughput. A transmission apparatus transmits an instruction of CSI request distributed for each reception apparatus in a subframe concurrently with or earlier than a reference signal CSI-RS to each of reception apparatuses. Each of the reception apparatuses detects the CSI request from the transmission apparatus and calculates CSI from a channel estimation value of CSI-RS received thereafter. Then, the reception apparatus identifies CSI report subframe of the own apparatus from CSI report interval information of a given time interval notified in advance, the subframe in which the CSI request is detected and transmission timing of CSI-RS, and transmits a feedback signal including CSI report value by using PUSCH at the timing of the CSI report subframe.
Abstract translation: 在时域中以特定资源不连续地发送参考信号的情况下，抑制信道质量信息请求和报告的集中，从而防止吞吐量的劣化。 发送装置向每个接收装置发送与参考信号CSI-RS同时或早于每个接收装置的每个接收装置分配的CSI请求的指示。 每个接收装置从发送装置检测到CSI请求，并根据其后收到的CSI-RS的信道估计值计算CSI。 然后，接收装置从预先通知的给定时间间隔的CSI报告间隔信息，检测到CSI请求的子帧和CSI-RS的发送定时的CSI报告间隔信息中识别自身设备的CSI报告子帧，并发送包括 CSI在CSI报告子帧的定时使用PUSCH的CSI报告值。
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