-
公开(公告)号：US09049062B2
公开(公告)日：2015-06-02
申请号：US14520170
申请日：2014-10-21
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。
-
公开(公告)号：US20150098454A1
公开(公告)日：2015-04-09
申请号：US14570678
申请日：2014-12-15
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。
-
公开(公告)号：US20150003359A1
公开(公告)日：2015-01-01
申请号：US14372737
申请日：2013-01-11
Inventor： Masayuki Hoshino , Daichi Imamura
CPC classification number: H04W72/0413 , H04B17/345 , H04L1/0003 , H04L1/0026 , H04L5/0035 , H04L5/0048 , H04L5/0073 , H04L5/0092 , H04L25/0204 , H04L25/0224 , H04W24/08
Abstract: Provided is a terminal that can accurately measure channel information between the terminal and each TP subjected to CoMP control. In this terminal, a reception processing unit (203) receives a reference signal transmitted from a specific transmission point and control information, and receives a signal transmitted from a transmission point other than the specific transmission point, this signal being received in resources comprising, from among a reference-signal resource group, a resource of a first number specified from the control information, and a resource of a second number separated from the first number by a predetermined number. A CSI generation unit (206) uses the reference signal and a signal received by an interference measurement resource to generate channel information. A transmission signal-forming unit (208) transmits the generated channel information.
Abstract translation: 提供了一种可以准确测量终端与经过CoMP控制的每个TP之间的信道信息的终端。 在该终端中，接收处理单元（203）接收从特定发送点发送的参考信号和控制信息，并接收从特定发送点以外的发送点发送的信号，该信号以资源接收， 在参考信号资源组中，从控制信息指定的第一号码的资源和从第一号码分离预定数量的第二号码的资源。 CSI生成单元（206）使用参考信号和由干扰测量资源接收的信号来生成信道信息。 发送信号形成单元（208）发送生成的信道信息。
-
公开(公告)号：US20140355710A1
公开(公告)日：2014-12-04
申请号：US14372440
申请日：2013-01-11
Inventor： Tomofumi Takata , Akihiko Nishio , Daichi Imamura , Takashi Iwai , Atsushi Matsumoto
IPC: H04B7/04
CPC classification number: H04B7/0417 , H04B7/024 , H04B7/0452 , H04J13/0062 , H04J13/10 , H04J13/16 , H04L5/0035 , H04L5/0051 , H04L27/2613
Abstract: Provided is a transmission device with which, by orthogonalizing different transmission bandwidth DM-RSs, CoMP performance is improved, and it is possible to increase MU-MIMO communication multiplexing. In the device, a sequence generator unit (103) generates a reference signal of a number of transmission bandwidths which is less than a prescribed number using a first sequence which is used in a reference signal of a number of transmission bandwidths which is greater than or equal to the prescribed number when a coordinated receiving by a plurality of receiving devices is applied, and generates the reference signal of the number of transmission bandwidth which is less than the prescribed number using a second sequence which differs from the first sequence when the coordinated receiving is not applied. A transmission unit (112) transmits the reference signal.
Abstract translation: 提供一种发送装置，通过使不同的发送带宽DM-RS正交化，可以提高CoMP性能，并且可以增加MU-MIMO通信复用。 在该装置中，序列发生器单元（103）使用第一序列生成少于规定数量的传输带宽的参考信号，所述第一序列用于多个传输带宽的参考信号，所述参考信号大于或等于 当应用多个接收设备的协调接收时，等于规定数量，并且当协调接收时使用与第一序列不同的第二序列来生成小于规定数量的传输带宽数量的参考信号 不适用。 发送单元（112）发送参考信号。
-
公开(公告)号：US11711791B2
公开(公告)日：2023-07-25
申请号：US17571365
申请日：2022-01-07
Inventor： Takashi Iwai , Daichi Imamura , Tomofumi Takata , Yoshihiko Ogawa
IPC: H04W72/00 , H04W72/0446 , H04J13/00 , H04J13/22 , H04W72/044 , H04W72/0453
CPC classification number: H04W72/0446 , H04J13/0055 , H04J13/0062 , H04J13/22 , H04W72/0453 , H04W72/0466
Abstract: It is an object to provide a sequence allocating method that, while maintaining the number of Zadoff-Chu sequences to compose a sequence group, is configured to make it possible to reduce correlations between different sequential groups. This method comprises the steps of setting a standard sequence with a standard sequence length and a standard sequence number in a step, setting a threshold value in accordance with an RB number in a step, setting a sequence length corresponding to RB number in a step, judging whether ¦r/N−rb/Nb¦=Xth(m) is satisfied in a step, including a plurality of Zadoff-Chu sequences with a sequence number and a sequence length in a sequence group in a step if the judgment is positive, and allocating the sequence group to the same cell in a step.
-
Patent Agency Ranking
公开(公告)号：US11259299B2
公开(公告)日：2022-02-22
申请号：US16847133
申请日：2020-04-13
Inventor： Takashi Iwai , Daichi Imamura , Tomofumi Takata , Yoshihiko Ogawa
Abstract: It is an object to provide a sequence allocating method that, while maintaining the number of Zadoff-Chu sequences to compose a sequence group, is configured to make it possible to reduce correlations between different sequential groups. This method comprises the steps of setting a standard sequence with a standard sequence length and a standard sequence number in a step, setting a threshold value in accordance with an RB number in a step, setting a sequence length corresponding to RB number in a step, judging whether ¦r/N-rb/Nb¦=Xth(m) is satisfied in a step, including a plurality of Zadoff-Chu sequences with a sequence number and a sequence length in a sequence group in a step if the judgment is positive, and allocating the sequence group to the same cell in a step.
-
87.发明授权公开(公告)号：US09907064B2
公开(公告)日：2018-02-27
申请号：US14955964
申请日：2015-12-01
Inventor： Yoshiko Saito , Ayako Horiuchi , Seigo Nakao , Akihiko Nishio , Daichi Imamura , Alexander Golitschek Edler Von Elbwart , Sujuan Feng
CPC classification number: H04W72/042 , H04J11/0079 , H04L5/001 , H04L5/0051 , H04L5/0053 , H04L5/0094
Abstract: A communication apparatus has a receiver and a decoder. The receiver receives a control signal including first downlink control information and second downlink control information, and receives decoding area information that indicates whether the extended Physical Downlink Control Channel (PDCCH) should be decoded for each of a plurality of terminal apparatuses. The decoder decodes each of a plurality of first mapping candidates in the PDCCH area or decodes each of the plurality of first mapping candidates in the PDCCH area and each of the plurality of second mapping candidates in the extended PDCCH. A number of the second mapping candidates included in the user-specific search space equals to or is more than a number of the first mapping candidates included in the common search space.
-
公开(公告)号：US09894682B2
公开(公告)日：2018-02-13
申请号：US13951371
申请日：2013-07-25
Inventor： Yoshihiko Ogawa , Daichi Imamura , Ayako Horiuchi , Sadaki Futagi
CPC classification number: H04W72/1289 , H04L5/0007 , H04L5/0037 , H04L5/006 , H04L5/0085 , H04L5/023 , H04W88/085
Abstract: A radio communication base station device can efficiently obtain a multiuser diversity gain from frequency scheduling while reducing the amount of a reference signal occupying an uplink. In the device, a grouping section divides a plurality of RBs (Resource Blocks) into a plurality of RB groups. An RB group control unit performs a control to change the correspondence relationship between the RBs and the RB groups with time. When the grouping section divides the RBs into the RB groups, the RB control unit performs a control to change a combination of the RBs included in each of the RB groups with time. A scheduling section performs a scheduling of allocating each of a plurality of mobile stations to each of the RBs in each of the RB groups according to the reception quality of the reference signal.
-
公开(公告)号：US09893849B2
公开(公告)日：2018-02-13
申请号：US14551763
申请日：2014-11-24
Inventor： Seigo Nakao , Akihiko Nishio , Daichi Imamura
CPC classification number: H04L5/0023 , H04B7/0456 , H04B7/0639 , H04L5/0053 , H04L5/006 , H04W28/04 , H04W28/06 , H04W72/04 , H04W72/042 , H04W88/08
Abstract: In a base station, a control unit and a data size regulation unit control the data size of downstream assignment control data and upstream assignment control data in the PDCCH signal based on the communication format used between the base station and a terminal, the number of base station antennas (M) (nonnegative number), the number of terminal antennas (N) (nonnegative number), the bandwidth of the downstream band, and the bandwidth of the upstream band. Specifically, the control unit determines it is unnecessary to adjust the aforementioned data size when the selected communication format is first established between multiple antennas and when where there are multiple for one of M and N and only one for the other. The quality of downstream assignment control data is prevented from degrading, while preventing the number of blind determinations from increasing on the receiving side of the downstream control channel signal.
-
公开(公告)号：US09526094B2
公开(公告)日：2016-12-20
申请号：US14372737
申请日：2013-01-11
Inventor： Masayuki Hoshino , Daichi Imamura
CPC classification number: H04W72/0413 , H04B17/345 , H04L1/0003 , H04L1/0026 , H04L5/0035 , H04L5/0048 , H04L5/0073 , H04L5/0092 , H04L25/0204 , H04L25/0224 , H04W24/08
Abstract: Provided is a terminal that can accurately measure channel information between the terminal and each TP subjected to CoMP control. In this terminal, a reception processing unit (203) receives a reference signal transmitted from a specific transmission point and control information, and receives a signal transmitted from a transmission point other than the specific transmission point, this signal being received in resources comprising, from among a reference-signal resource group, a resource of a first number specified from the control information, and a resource of a second number separated from the first number by a predetermined number. A CSI generation unit (206) uses the reference signal and a signal received by an interference measurement resource to generate channel information. A transmission signal-forming unit (208) transmits the generated channel information.
Abstract translation: 提供了一种可以准确测量终端与经过CoMP控制的每个TP之间的信道信息的终端。 在该终端中，接收处理单元（203）接收从特定发送点发送的参考信号和控制信息，并接收从特定发送点以外的发送点发送的信号，该信号以资源接收， 在参考信号资源组中，从控制信息指定的第一号码的资源和从第一号码分离预定数量的第二号码的资源。 CSI生成单元（206）使用参考信号和由干扰测量资源接收的信号来生成信道信息。 发送信号形成单元（208）发送生成的信道信息。
-
-
-
-
-
-
-
-
-
Search Results
146
records
(took 0.025 seconds)
