-
公开(公告)号：US11728938B2
公开(公告)日：2023-08-15
申请号：US16618608
申请日：2018-05-07
Inventor： Tomoya Nunome , Ayako Horiuchi , Takashi Iwai , Hidetoshi Suzuki
IPC: H04L1/18 , H04L1/1829 , H04W72/044 , H04W72/23
CPC classification number: H04L1/1861 , H04W72/044 , H04W72/23
Abstract: In a terminal, based on a first parameter included in each of a plurality of downlink control signals, the first parameter indicating a cumulative count of code block groups (CBGs) configuring each of a plurality of transport blocks (TBs) assigned by the plurality of downlink control signals, a HARQ-ACK generation unit generates a response signal (HARQ-ACK) for each of the code block groups. A transmission unit collectively transmits the response signals for each of the code block groups.
-
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.
-
公开(公告)号：US11641628B2
公开(公告)日：2023-05-02
申请号：US16606395
申请日：2018-04-17
Inventor： Takashi Iwai , Hidetoshi Suzuki , Tomohumi Takata , Tetsuya Yamamoto
IPC: H04W52/32 , H04L5/00 , H04W52/24 , H04W52/36 , H04W72/0453 , H04L27/26 , H04W72/542
Abstract: In a terminal, a selecting unit selects one generation method from a plurality of generation methods for reference signals (sounding reference signals (SRSs)). A radio transmitting unit transmits reference signals (SRSs) generated in accordance with the selected generation method.
-
34.发明申请公开(公告)号：US20230022595A1
公开(公告)日：2023-01-26
申请号：US17960001
申请日：2022-10-04
Inventor： Takashi Iwai , Tomohumi Takata , Hidetoshi Suzuki , Ayako Horiuchi
Abstract: In the multiple short sequence based SRS, multiple items of sequence data having a short sequence length corresponding to a partial band are used for transmitting SRS in discontinuous bands. In the multiple short sequence based SRS, a terminal specifies a frequency domain to be used for transmitting a reference signal using predetermined sequence data, applies a phase shift index associated with the specified frequency domain to the reference signal, and transmits the reference signal to which the phase shift index is applied by using the specified frequency domain.
-
35.发明授权公开(公告)号：US11496347B2
公开(公告)日：2022-11-08
申请号：US17147158
申请日：2021-01-12
Inventor： Takashi Iwai , Tomohumi Takata , Hidetoshi Suzuki , Ayako Horiuchi
Abstract: In the multiple short sequence based SRS, multiple items of sequence data having a short sequence length corresponding to a partial band are used for transmitting SRS in discontinuous bands. In the multiple short sequence based SRS, a terminal specifies a frequency domain to be used for transmitting a reference signal using predetermined sequence data, applies a phase shift index associated with the specified frequency domain to the reference signal, and transmits the reference signal to which the phase shift index is applied by using the specified frequency domain.
-
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.
-
公开(公告)号：US10965422B2
公开(公告)日：2021-03-30
申请号：US16476060
申请日：2018-01-17
Inventor： Takashi Iwai , Hidetoshi Suzuki , Tomohumi Takata , Ayako Horiuchi
Abstract: In a terminal, an SRS drop control unit drops a portion of partial bands from among a plurality of partial bands in a case where transmission power for reference signals generated using a plurality of sequences having a sequence length that corresponds to a partial band exceeds a threshold value. Furthermore, a radio transmission unit transmits the reference signals by means of the remaining partial bands other than the portion of partial bands that are dropped from among the plurality of partial bands.
-
38.发明授权公开(公告)号：US09386588B2
公开(公告)日：2016-07-05
申请号：US14702069
申请日：2015-05-01
Inventor： Shinsuke Takaoka , Takashi Iwai
IPC: H04W52/36 , H04W72/04 , H04W52/26 , H04W52/24 , H04L5/00 , H04W52/16 , H04W52/34 , H04L1/00 , H04L1/16
CPC classification number: H04W72/0473 , H04L1/0031 , H04L1/1607 , H04L5/001 , H04L5/0053 , H04L5/0094 , H04W52/146 , H04W52/16 , H04W52/242 , H04W52/262 , H04W52/34 , H04W52/365 , H04W52/367 , H04W72/042
Abstract: Provided are a base station apparatus and a communication method that can preclude the recognition mismatch in which the reference formats of different UL grants are recognized between a wireless communication terminal apparatus and the base station apparatus by using power headroom (PHR) calculation. For the PHR calculation of a PUSCH in a CC in which no UL grant is present, a UL grant, which was used for calculating the PHR in another CC having the same subframe number as the PUSCH, is used. For example, as to a subframe number=#1, the UL grant of CC #0 is used for calculating the PHR of CC #2 in which no UL grant is present.
Abstract translation: 提供了一种基站装置和通信方法，其可以通过使用功率余量（PHR）计算来排除在无线通信终端装置与基站装置之间识别不同UL授权的参考格式的识别失配。 对于没有UL授权的CC中的PUSCH的PHR计算，使用用于计算具有与PUSCH相同的子帧号的另一个CC中的PHR的UL许可。 例如，对于子帧号=＃1，CC＃0的UL授权用于计算不存在UL授权的CC＃2的PHR。
-
公开(公告)号：US20160183306A1
公开(公告)日：2016-06-23
申请号：US15056926
申请日：2016-02-29
Inventor： Daichi Imamura , Sadaki Futagi , Masaru Fukuoka , Takashi Iwai , Atsushi Matsumoto
CPC classification number: H04W74/0833 , H04W72/042 , H04W74/00 , H04W74/006 , H04W74/008 , H04W74/0866
Abstract: Disclosed are a radio transmission device and a radio transmission method which reduce the RACH conflict ratio and improve the RACH detection characteristic. When the device and the method are used: as the number of signature numbers allocated for UE by the network side increases, the condition for allocating a signature by UE itself is mitigated and an expectation value which is a statistic average value of the RA quantity using the signature allocated by UE for itself is decreased; and as the number of signature numbers allocated for UE by the network side decreases, the condition for allocating a signature by UE itself is limited and an expectation value of the RA quantity using the signature allocated by UE for itself is increased.
Abstract translation: 公开了减少RACH冲突比并提高RACH检测特性的无线传输装置和无线传输方法。 当使用设备和方法时：随着网络侧为UE分配的签名号码的数量增加，UE本身分配签名的条件得到缓解，作为RA数量的统计平均值的期望值使用 UE自身分配的签名减少; 并且由于由网络侧为UE分配的签名号码的数量减少，所以UE本身分配签名的条件受到限制，并且使用UE自己分配的签名的RA数量的期望值增加。
-
公开(公告)号：US20160099746A1
公开(公告)日：2016-04-07
申请号：US14970255
申请日：2015-12-15
Inventor： Daichi Imamura , Takashi Iwai , Kazunori Inogai , Sadaki Futagi , Atsushi Matsumoto
IPC: H04B1/7083 , H04W72/04
CPC classification number: H04W74/0833 , H04B1/707 , H04B1/7083 , H04B2201/70702 , H04B2201/70713 , H04J13/0062 , H04J13/102 , H04J13/22 , H04L5/0048 , H04L23/02 , H04L27/2613 , H04W72/04 , H04W72/0446 , H04W72/0453 , H04W74/0875
Abstract: A sequence allocating method and apparatus wherein in a system where a plurality of different Zadoff-Chu sequences or GCL sequences are allocated to a single cell, the arithmetic amount and circuit scale of a correlating circuit at a receiving end can be reduced. In ST201, a counter (a) and a number (p) of current sequence allocations are initialized, and in ST202, it is determined whether the number (p) of current sequence allocations is coincident with a number (K) of allocations to one cell. In ST203, it is determined whether the number (K) of allocations to the one cell is odd or even. If K is even, in ST204-ST206, sequence numbers (r=a and r=N−a), which are not currently allocated, are combined and then allocated. If K is odd, in ST207-ST212, for sequences that cannot be paired, one of sequence numbers (r=a and r=N−a), which are not currently allocated, is allocated.
-
-
-
-
-
-
-
-
-
Search Results
135
records
(took 0.037 seconds)
