Patents Assigned to NTT Docomo
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Publication number: 20250140274Abstract: The purpose of the present invention is to reduce distortion a frequency band component encoded with a small number of bits in a time domain and improve quality. An audio decoding device (10) decodes an encoded audio signal and outputs the audio signal. A decoding unit (10a) decodes an encoded sequence containing an encoded audio signal and obtains a decoded signal. A selective temporal envelope shaping unit (10b) shapes a temporal envelope of a decoded signal in the frequency band on the basis of decoding related information concerning decoding of the encoded sequence.Type: ApplicationFiled: January 2, 2025Publication date: May 1, 2025Applicant: NTT DOCOMO, INC.Inventors: Kei Kikuiri, Atsushi Yamaguchi
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Patent number: 12289700Abstract: A terminal includes a receiving unit that receives information indicating whether each condition of one or more conditions for validating a time alignment is activated or deactivated; and a control unit that independently activates or deactivates each condition of the one or more conditions in accordance with the received information.Type: GrantFiled: February 17, 2020Date of Patent: April 29, 2025Assignee: NTT DOCOMO, INC.Inventors: Daiki Takeda, Kazuaki Takeda, Takayuki Isogawa, Takuma Takada
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Patent number: 12289268Abstract: A communication apparatus includes a control unit configured to, when a sidelink control channel and a sidelink shared channel are to be frequency-division multiplexed, map a demodulation reference signal for the sidelink shared channel onto a symbol onto which a demodulation reference signal for the sidelink control channel is mapped; and a transmitting unit configured to transmit the symbol onto which the demodulation reference signal for the sidelink control channel and the demodulation reference signal for the sidelink shared channel are mapped.Type: GrantFiled: April 2, 2019Date of Patent: April 29, 2025Assignee: NTT DOCOMO, INC.Inventors: Shohei Yoshioka, Satoshi Nagata, Huan Wang
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Patent number: 12289171Abstract: User equipment includes a control unit that selects a sidelink resource from candidate resources excluding a selected resource and a further resource within a predetermined time window and a transmitting unit that performs transmission or retransmission using the resource selected by the control unit.Type: GrantFiled: May 10, 2019Date of Patent: April 29, 2025Assignee: NTT DOCOMO, INC.Inventors: Shohei Yoshioka, Satoshi Nagata, Huan Wang, Xiaolin Hou
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Patent number: 12289721Abstract: A terminal according to one aspect of the present disclosure includes a control section that determines spatial relation information for a physical uplink shared channel (PUSCH) for a plurality of transmission/reception points by using at least one of radio resource control (RRC) signaling, medium access control (MAC) signaling, and downlink control information (DCI), and a transmitting section that repeatedly transmits the PUSCH by using a spatial domain transmission filter based on the spatial relation information. According to one aspect of the present disclosure, PUSCH repetition transmission can be appropriately controlled.Type: GrantFiled: February 28, 2020Date of Patent: April 29, 2025Assignee: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Shaozhen Guo, Jing Wang, Xiaolin Hou
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Patent number: 12289726Abstract: A terminal includes a reception unit configured to receive resource information of an uplink transmission, the resource information including spatial relation information, and a setting unit configured to perform configuration related to the uplink transmission, in accordance with the resource information of the uplink transmission, the resource information including the spatial relation information. The spatial relation information of the resource information of the uplink transmission is activated or deactivated.Type: GrantFiled: August 14, 2019Date of Patent: April 29, 2025Assignee: NTT DOCOMO, INC.Inventors: Hideaki Takahashi, Yuki Matsumura
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Patent number: 12289270Abstract: The present disclosure is designed to determine appropriate spatial resources for uplink control channels. A user terminal has a receiving section that receives, through higher layer signaling, a plurality of entries of information related to a spatial resource for an uplink control channel, and receives specifying information that specifies, amongst the plurality of entries, entries that correspond respectively to the plurality of uplink control channel resources, by means of a control element of media access control, and a control section that controls determination of one of the plurality of uplink control channel resources, and controls transmission of the uplink control channel, by using an entry that corresponds to the determined uplink control channel resource, amongst the specified entries.Type: GrantFiled: January 12, 2018Date of Patent: April 29, 2025Assignee: NTT DOCOMO, INC.Inventors: Kazuki Takeda, Satoshi Nagata, Lihui Wang, Min Liu, Xiaolin Hou, Chongning Na
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Publication number: 20250133541Abstract: A terminal according to an aspect of the present disclosure includes: a control section that determines, based on at least one of a radio resource control (RRC) information element (IE), a type of uplink control information (UCI) carried by a physical uplink control channel (PUCCH), downlink control information, and a medium access control (MAC) control element (CE), one scheme of a first scheme for respectively transmitting a plurality of repetitions of the PUCCH over a plurality of slots and a second scheme for respectively transmitting a plurality of repetitions of the PUCCH over a plurality of sub-slots; and a transmitting section that transmits the plurality of repetitions according to the scheme. According to the aspect of the present disclosure, it is possible to realize suitable PUCCH repeated transmission.Type: ApplicationFiled: August 17, 2022Publication date: April 24, 2025Applicant: NTT DOCOMO, INC.Inventors: Yuki Takahashi, Satoshi Nagata, Qiping Pi, Jing Wang, Lan Chen
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Publication number: 20250133416Abstract: A wireless relay device includes: a receiver unit configured to receive a signal from each of a plurality of base stations; a control unit configured to be connected to a base station for which a received quality of the signal is equal to or greater than a threshold value; and a relay unit configured to perform relaying of a signal between the base station to be connected to and a terminal. The receiver unit receives control information from the base station to be connected to, the control unit activates or deactivates a relay function of the relay unit, based on the control information, and the control unit determines a wireless resource used by the relay unit, based on the control information.Type: ApplicationFiled: January 17, 2022Publication date: April 24, 2025Applicant: NTT DOCOMO, INC.Inventors: Shinya Kumagai, Haruhi Echigo, Yuki Takahashi, Shohei Yoshioka, Daisuke Kurita, Satoshi Nagata
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Publication number: 20250132902Abstract: In response to a request from a first device (100), a management unit (300) transmits a data encryption key to the first device (100) through a secure environment between the management unit (300) and the first device (100) when integrity of a first application running in an isolated calculation area is verified. The first device (100) encrypts target data using the data encryption key and transmits encrypted target data to a second device (200) through the first application. In response to a request from the second device (200), the management unit (300) transmits a data encryption key to the second device (200) through a secure environment between the management unit (300) and the second device (200) when integrity of a second application running in an isolated calculation area is verified. The second device (200) decrypts the encrypted target data using the data encryption key through the second application.Type: ApplicationFiled: November 29, 2022Publication date: April 24, 2025Applicant: NTT DOCOMO, INC.Inventors: Keita HASEGAWA, Kazuma NOZAWA, Takuya DOUMEN, Tomohiro NAKAGAWA, Hiroshi AONO, Masayuki TERADA
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Publication number: 20250132965Abstract: The present disclosure provides a terminal device and a processing method. The terminal device includes: a receiving unit configured to receive processing configuration information, wherein the processing configuration information indicates at least one of pre-processing and post-processing of Discrete Fourier Transform (DFT) spreading; a processing unit configured to determine at least one of the pre-processing and the post-processing of the DFT spreading according to the processing configuration information.Type: ApplicationFiled: August 10, 2021Publication date: April 24, 2025Applicant: NTT DOCOMO, INC.Inventors: Juan Liu, Wenjia Liu, Xiaolin Hou, Anxin Li, Lan Chen, Yoshihisa Kishiyama, Takahiro Asai
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Publication number: 20250133542Abstract: A terminal according to one aspect of the present disclosure includes: a control section configured to determine a resource in which an uplink (UL) signal resource and a downlink (DL) signal resource are configurable in the same time resource in one physical resource block; and a transmitting/receiving section configured to perform, in the resource to be determined, at least one of reception of a specific DL signal used for initial access and transmission of a specific UL signal used for initial access. According to one aspect of the present disclosure, overhead can be reduced and resource utilization efficiency can be increased.Type: ApplicationFiled: October 29, 2021Publication date: April 24, 2025Applicant: NTT DOCOMO, INC.Inventors: Daisuke Kurita, Hiroki Harada, Mayuko Okano, Satoshi Nagata, Masaya Okamura, Tomoya Ohara
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Publication number: 20250133568Abstract: A terminal according to one aspect of the present disclosure includes: a receiving section that receives information related to at least one of a search space set and a control resource set for repetition transmission of a downlink control channel; and a control section that controls reception of a downlink control channel applied with the repetition transmission, based on at least one of a plurality of associated search space sets and a plurality of associated control resource sets obtained based on the information.Type: ApplicationFiled: September 10, 2021Publication date: April 24, 2025Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Weiqi Sun, Jing Wang, Lan Chen
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Publication number: 20250133521Abstract: A terminal includes: a communication unit configured to perform communication with a base station that is included in an NTN (Non-Terrestrial Network) via a non-terrestrial device and a wireless relay device; and a control unit configured to apply at least one of a first timing advance value or a second timing advance value to the communication, the first timing advance value corresponding to a section from the non-terrestrial device to the wireless relay device in a link from the non-terrestrial device to the terminal itself, and the second timing advance value corresponding to a section from the wireless relay device to the terminal itself in the link from the non-terrestrial device to the terminal itself.Type: ApplicationFiled: September 15, 2021Publication date: April 24, 2025Applicant: NTT DOCOMO, INC.Inventors: Shohei Yoshioka, Shinya Kumagai, Yuki Takahashi, Mayuko Okano, Masaya Okamura, Satoshi Nagata
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Publication number: 20250133598Abstract: To properly perform communication even in a case where communication is performed using a plurality of transmission points. A terminal according to an aspect of the present disclosure includes: a receiving section that receives a downlink control channel indicating transmission of a random access channel to at least one of a serving cell and a non-serving cell; and a control section that controls transmission of the random access channel on the basis of at least one of a random access channel configuration corresponding to a given cell and power information regarding a synchronization signal block corresponding to the given cell when the random access channel is transmitted on the basis of the downlink control channel.Type: ApplicationFiled: August 16, 2022Publication date: April 24, 2025Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang, Weiqi Sun
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Patent number: 12284701Abstract: A base station includes a receiving unit that receives capability information including information indicating a first group consisting of band combinations that can be used only for a specific dual connectivity, and information indicating a second group consisting of band combinations that can be used for the specific dual connectivity in a terminal; a control unit that assigs a plurality of indexes to a corresponding plurality of band combinations of a third group, the third group consisting of the plurality of band combinations consisting of the band combinations of the first group and the band combinations of the second group, so that each band combination of the plurality of band combinations of the third group can be identified; and a transmitting unit that transmits, to another base station, a signal that can be used for communication between the base stations, the signal including the indexes.Type: GrantFiled: September 28, 2020Date of Patent: April 22, 2025Assignee: NTT DOCOMO, INC.Inventors: Hideaki Takahashi, Tianyang Min
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Publication number: 20250124260Abstract: A population state determination system includes an acquisition unit configured to acquire population information indicating a population in a time series in an area that is a population state determination target, a model calculation unit configured to perform calculation by inputting the population information acquired by the acquisition unit to a pre-stored encoder-decoder model for compressing and reconstructing input data and obtain an output from the encoder-decoder model, and a determination unit configured to determine a state of the population in the area by comparing the population information acquired by the acquisition unit-11 with the output obtained by the model calculation unit.Type: ApplicationFiled: August 30, 2022Publication date: April 17, 2025Applicant: NTT DOCOMO, INC.Inventors: Keiichi OCHIAI, Masayuki TERADA
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Publication number: 20250124727Abstract: A server serving as an avatar generation apparatus includes: a first acquirer configured to acquire a first image indicating a front face portion of a user; a second acquirer configured to acquire, in response to a motion of the user's head, a second image indicating the front face portion and a side face portion of the user; an authenticator configured to authenticate the user based on the first and second images; and an image generator configured to generate a head image of a three-dimensional avatar of the user, by using the second image.Type: ApplicationFiled: December 19, 2022Publication date: April 17, 2025Applicant: NTT DOCOMO, INC.Inventors: Tomohito YAMASAKI, Youhei FUJIMOTO, Ichitaro TSUKADA
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Publication number: 20250126659Abstract: A wireless communication system includes: a non-terrestrial device and a terrestrial device. The non-terrestrial device includes: a first control unit configured to establish a service link with a terminal and establish a feeder link with the terrestrial device; and a first communication unit configured to provide a relay between the service link and the feeder link, and the terrestrial device includes: a second control unit configured to establish the feeder link with the non-terrestrial device and establish a fronthaul with a base station; and a second communication unit configured to provide conversion between a signal of the fronthaul and a signal of the feeder link.Type: ApplicationFiled: December 28, 2022Publication date: April 17, 2025Applicant: NTT DOCOMO, INC.Inventors: Yuki Hokazono, Yoshihisa Kishiyama, Hinata Kohara
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Publication number: 20250125933Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives an indication of a transmission configuration indication (TCI) state to be applied to a plurality of types of channels, and at least one of first configuration information related to a control resource set (CORESET) and second configuration information related to a search space, and a control section that judges, based on at least one of the first configuration information and the second configuration information, the TCI state to be applied to a specific CORESET related to terminal-specific and non-terminal-specific reception. The specific CORESET is a CORESET other than a CORESET configured by using a system information block or a master information block. According to one aspect of the present disclosure, it is possible to appropriately recognize a TCI state.Type: ApplicationFiled: February 3, 2022Publication date: April 17, 2025Applicant: NTT DOCOMO, INC.Inventors: Yuki Matsumura, Satoshi Nagata, Jing Wang