公开(公告)号：US11582630B2

公开(公告)日：2023-02-14

申请号：US17203447

申请日：2021-03-16

申请人： Sun Patent Trust

发明人： Yasuaki Yuda ,  Seigo Nakao ,  Ayako Horiuchi ,  Daichi Imamura ,  Masayuki Hoshino ,  Atsushi Sumasu

IPC分类号： H04W24/10 ,  H04L1/00 ,  H04L1/20 ,  H04L5/00 ,  H04L12/18 ,  H04L27/28 ,  H04W24/02 ,  H04B7/26 ,  H04W84/04

摘要： To measure the channel quality of the own cell accurately in a condition where there is no interference from a neighbor cell. A wireless communication terminal according to the invention is a wireless communication terminal to be connected to a base station for transmitting and receiving data to/from the base station, the wireless communication terminal including: a receiver that receives a signal which includes control information provided for measuring a channel quality of own cell from the base station; an extractor that extracts the control information from the signal received by the receiver; a measurement section that measures, on the basis of the control information, the channel quality of the own cell in a domain where a neighbor cell does not transmit a signal; and a transmitter that transmits a measurement result of the channel quality of the own cell measured by the measurement section, to the base station.

公开(公告)号：US11582082B2

公开(公告)日：2023-02-14

申请号：US17481115

申请日：2021-09-21

申请人： Sun Patent Trust

发明人： Yoshihiko Ogawa ,  Akihiko Nishio ,  Masayuki Hoshino ,  Takashi Iwai

IPC分类号： H04L27/26 ,  H04L5/00 ,  H04J13/00 ,  H04B7/06 ,  H04W72/04 ,  H04L69/324 ,  H04W24/10 ,  H04W72/0453

摘要： Provided is a transmitter which improves the flexibility of SRS resource allocation without increasing the amount of signaling for notifying the cyclic shift amount. In the transmitter, with regard to each basic shift amount candidate group having a basic shift amount from 0 to N−1, a transmission control unit (206) specifies the actual shift amount imparted to a cyclic shift sequence used in scrambling a reference signal transmitted from each antenna port, said specification being performed based on a table in which cyclic shift amount candidates correspond to each antenna port, and based on setting information transmitted from a base station (100). With regard to basic shift amount candidates for shift amount X, the table differentiates between an offset pattern comprising offset values for cyclic shift amount candidates corresponding to each antenna port and an offset pattern corresponding to basic shift amount candidates of X+N/2.

公开(公告)号：US11575415B2

公开(公告)日：2023-02-07

申请号：US17728025

申请日：2022-04-25

申请人： Sun Patent Trust

发明人： Yutaka Murakami ,  Tomohiro Kimura ,  Mikihiro Ouchi

IPC分类号： H04B7/0456 ,  H04L25/03 ,  H04B7/04 ,  H04L27/36 ,  H04L23/00 ,  H04L27/26 ,  H04B7/0413 ,  H04L27/12 ,  H04L27/14 ,  H04B7/06 ,  H04W72/00 ,  H04W72/08

摘要： A signal generation method is used in a transmission device that transmits a plurality of transmission signals from a plurality of antennas at the same frequency and at the same time, in the case where larger power change is performed on a first transmission signal than on a second transmission signal during generation process of the first transmission signal and the second transmission signal, the first transmission signal and the second transmission signal are mapped before the power change such that a minimum Euclidian distance between possible signal points for the first signal is longer than a minimum Euclidian distance between possible signal points for the second signal.

公开(公告)号：US20230036708A1

公开(公告)日：2023-02-02

申请号：US17481657

申请日：2021-09-22

申请人： Sun Patent Trust

发明人： Yutaka MURAKAMI ,  Tomohiro KIMURA ,  Mikihiro OUCHI

IPC分类号： H04B7/0456 ,  H04B7/0413 ,  H04J11/00 ,  H04L25/03 ,  H04L1/06 ,  H04B7/06

摘要： Disclosed is a transmission scheme for transmitting a first modulated signal and a second modulated signal over the same frequency at the same time. According to the transmission scheme, a precoding weight multiplying unit multiplies a baseband signal after a first mapping and a baseband signal after a second mapping by a precoding weight and outputs the first modulated signal and the second modulated signal. In the precoding weight multiplying unit, precoding weights are regularly hopped.

公开(公告)号：US20230033242A1

公开(公告)日：2023-02-02

申请号：US17966480

申请日：2022-10-14

申请人： Sun Patent Trust

发明人： Toshiyasu SUGIO ,  Takahiro NISHI ,  Youji SHIBAHARA ,  Kyoko TANIKAWA ,  Hisao SASAI ,  Toru MATSUNOBU

IPC分类号： H04N19/56 ,  H04N19/105 ,  H04N19/107 ,  H04N19/52 ,  H04N19/513

摘要： A moving picture coding apparatus for coding a current block is provided. A first candidate is derived from a first motion vector that has been used to code a first block, and it is determined whether a total number of candidates including the first candidate is less than a maximum candidate number. A second candidate having a second motion vector is derived when the total number of the candidates is less than the maximum candidate number, with the second motion vector including a zero vector. A candidate is selected from a plurality of candidates including the first candidate and the second candidate, and the current block is decoded using the selected candidate.

公开(公告)号：US11569965B2

公开(公告)日：2023-01-31

申请号：US17222383

申请日：2021-04-05

申请人： Sun Patent Trust

发明人： Masayuki Hoshino ,  Akihiko Nishio ,  Daichi Imamura

IPC分类号： H04W4/00 ,  H04L5/00 ,  H04J13/00 ,  H04J13/18 ,  H04L1/18 ,  H04L25/03 ,  H04L1/00 ,  H04B7/0456 ,  H04W72/04

摘要： The present disclosure provides a terminal device that allows constraints on user allocation to be prevented and spread codes to be allocated in a scheduler when non-adaptive HARQ is employed using a PHICH. A codeword generator generates code words by encoding data, a layer mapping unit places each CW in one or a plurality of layers, a DMRS generator generates a reference signal for each layer in which a CW is placed by using any resource among a plurality of resources defined by a mutually orthogonal plurality of OCCs, and an ACK/NACK demodulator receives a response signal indicating a retransmission request. When a response signal requesting retransmission of only a CW placed in a plurality of layers is received, the DMRS generator uses each resource having the same OCC among the plurality of resources for the reference signals generated in the corresponding layers.

公开(公告)号：US11558888B2

公开(公告)日：2023-01-17

申请号：US17334332

申请日：2021-05-28

申请人： Sun Patent Trust

发明人： Seigo Nakao ,  Daichi Imamura ,  Takahisa Aoyama

IPC分类号： H04W72/12 ,  H04L5/00 ,  H04W72/04 ,  H04H20/08 ,  H04J11/00 ,  H04L1/00

摘要： A base station is disclosed, including an information size adjusting section configured to adjust a size of control information based on a first basic information size of control information mapped on a user equipment (UE) specific search space in a first component carrier. The base station also includes a transmitter configured to transmit the control information mapped on the UE specific search space. A first determination method for determining the first basic information size is different from a second determination method for determining a second basic information size of control information mapped on a common search space in the first component carrier. The first determination method for determining the first basic information size is different from a third determination method for determining a third basic information size of control information mapped on a search space in a second component carrier that is different from the first component carrier.

公开(公告)号：US20220408102A1

公开(公告)日：2022-12-22

申请号：US17894682

申请日：2022-08-24

申请人： Sun Patent Trust

发明人： Hisao SASAI ,  Takahiro NISHI ,  Youji SHIBAHARA ,  Toshiyasu SUGIO ,  Kyoko TANIKAWA ,  Toru MATSUNOBU

IPC分类号： H04N19/176 ,  H04N19/196 ,  H04N19/13 ,  H04N19/61 ,  H04N19/463 ,  H04N19/157 ,  H04N19/21 ,  H04N19/124 ,  H04N19/159 ,  H04N19/593

摘要： The image decoding method includes: determining a context for use in a current block to be processed, from among a plurality of contexts; and performing arithmetic decoding on a bit sequence corresponding to the current block, using the determined context, wherein in the determining: the context is determined under a condition that control parameters of neighboring blocks of the current block are used, when the signal type is a first type, the neighboring blocks being a left block and an upper block of the current block; and the context is determined under a condition that the control parameter of the upper block is not used, when the signal type is a second type, and the second type is one of “ref_idx_l0” and “ref_idx_l1”.

公开(公告)号：US20220394690A1

公开(公告)日：2022-12-08

申请号：US17889253

申请日：2022-08-16

申请人： Sun Patent Trust

发明人： Seigo Nakao ,  Akihiko Nishio ,  Daichi Imamura

IPC分类号： H04W72/04 ,  H04L5/00 ,  H04L1/18 ,  H04W4/06

摘要： Disclosed is a base station in which the frequency usage efficiency can be improved when the communication bandwidths are asymmetric in the uplink line and the downlink line. A base station can communicate by using a plurality of downlink unit bands and a smaller number of uplink unit bands. A control unit allocates uplink resource allocation information and downlink resource allocation information to a PDCCH which is arranged in each of the plurality of downlink unit bands, and allocates a response signal to the uplink line data to a PHICH which is arranged in the same number of downlink unit bands from the plurality of downlink unit bands as there are uplink unit bands. A transmit RF unit transmits the resource allocation information or the response signal.

公开(公告)号：US20220360809A1

公开(公告)日：2022-11-10

申请号：US17874468

申请日：2022-07-27

申请人： Sun Patent Trust

发明人： Sue Mon Thet NAING ,  Chong Soon LIM ,  Kyaw Kyaw WIN ,  Hai Wei SUN ,  Viktor WAHADANIAH ,  Takahiro NISHI ,  Hisao SASAI ,  Youji SHIBAHARA ,  Toshiyasu SUGIO ,  Kyoko TANIKAWA ,  Toru MATSUNOBU ,  Kengo TERADA

IPC分类号： H04N19/51 ,  H04N19/70 ,  H04N19/172 ,  H04N19/46 ,  H04N19/107 ,  H04N19/52 ,  H04N19/105

摘要： An image coding method includes: selecting a first picture from plural pictures; setting a first temporal motion vector prediction flag which is associated with the first picture and is a temporal motion vector prediction flag indicating whether or not temporal motion vector prediction is to be used, to indicate that the temporal motion vector prediction is not to be used, and coding the first temporal motion vector prediction flag; coding the first picture without using the temporal motion vector prediction; and coding a second picture which follows the first picture in coding order, with referring to a motion vector of a picture preceding the first picture in coding order being prohibited.