公开(公告)号：US11678217B2

公开(公告)日：2023-06-13

申请号：US17370864

申请日：2021-07-08

Applicant: Sun Patent Trust

Inventor： Prateek Basu Mallick ,  Joachim Loehr ,  Hidetoshi Suzuki

IPC: H04W28/08 ,  H04W28/02 ,  H04W28/082 ,  H04W72/21 ,  H04W16/32 ,  H04W84/04 ,  H04W80/02 ,  H04W80/06

CPC classification number: H04W28/0278 ,  H04W16/32 ,  H04W28/085 ,  H04W72/21 ,  H04W80/02 ,  H04W80/06 ,  H04W84/045

Abstract: The present disclosure mainly relates to improvements for the buffer status reporting and the logical channel prioritization procedures performed in the UE, in scenarios where the UE is in dual connectivity and the PDCP layer of the UE is shared in the uplink for MeNB and SeNB. According to the present disclosure, a ratio is introduced according to which the buffer values for the PDCP are split in the UE between the SeNB and the MeNB according to said ratio.

公开(公告)号：US11569946B2

公开(公告)日：2023-01-31

申请号：US17195233

申请日：2021-03-08

Applicant: Sun Patent Trust

Inventor： Kazuki Takeda ,  Hidetoshi Suzuki ,  Ayako Horiuchi ,  Akihiko Nishio

IPC: H04W72/04 ,  H04W84/04 ,  H04L1/18 ,  H04W74/08 ,  H04L5/00 ,  H04J13/22

Abstract: A radio communication terminal that increases the ACK/NACK resource utilization efficiency while preventing ACK/NACK collision, and that causes no unnecessary reduction of the PUSCH band in a system that transmits E-PDCCH control information. The radio communication terminal adopts a configuration including a receiving section that receives a control signal including an ACK/NACK index via an enhanced physical downlink control channel (E-PDCCH) transmitted using one configuration from among one or a plurality of configuration candidates, a control section that selects a resource to be used for an ACK/NACK signal of downlink data from among specified resources specified beforehand based on E-PDCCH configuration information used for transmission or reception of the E-PDCCH and the ACK/NACK index, and a transmitting section that transmits the ACK/NACK signal using the selected specified resource.

公开(公告)号：US11553533B2

公开(公告)日：2023-01-10

申请号：US17029482

申请日：2020-09-23

Applicant: Sun Patent Trust

Inventor： Akihiko Nishio ,  Masayuki Hoshino ,  Hidetoshi Suzuki ,  Takashi Iwai

IPC: H04W74/08 ,  H04W56/00 ,  H04J3/06 ,  H04J11/00 ,  H04B7/26 ,  H04W74/00 ,  H04W28/02

Abstract: In order to provide a transmission device and transmission method with which a response signal for random access preamble transmitted from a preamble transmission device is efficiently transmitted, setting unit in base station sets a first resource candidate group, which enables terminal capable of receiving a latch response transmitted by demodulation reference signal (DMRS) transmission to be selected, and a second resource candidate group, which enables terminal incapable of receiving a latch response transmitted by DMRS transmission but capable of receiving a latch response transmitted by cell-specific reference signal (CRS) transmission to be selected. Control unit selects DMRS transmission as the latch response transmission method when a resource in which latch preamble has been received is included in the first candidate group, but selects CRS transmission as the latch response transmission method when the resource is included in the second resource candidate group.

公开(公告)号：US20220086813A1

公开(公告)日：2022-03-17

申请号：US17533981

申请日：2021-11-23

Applicant: Sun Patent Trust

Inventor： Tetsuya Yamamoto ,  Chi Gao ,  Hidetoshi Suzuki ,  Seigo Nakao

IPC: H04W72/04 ,  H04L5/00

Abstract: A terminal includes: a receiver, which, in operation, receives downlink control information and downlink data; circuitry, which, in operation, determines, based on the downlink control information and an offset, a physical uplink control channel (PUCCH) resource used for transmission of a response signal for the downlink data; and a transmitter, which, in operation, transmits the response signal using the determined PUCCH resource. A first offset is used as the offset when the terminal is configured in a coverage enhancement mode, in which the response signal is allowed to be transmitted repeatedly for one of plural repetition levels in a plurality of subframes, where the first offset is configured for each of the plural repetition levels. The first offset is different from a second offset, which is used when the terminal is not configured in the coverage enhancement mode.

公开(公告)号：US20210337424A1

公开(公告)日：2021-10-28

申请号：US17370864

申请日：2021-07-08

Applicant: Sun Patent Trust

Inventor： Prateek Basu Mallick ,  Joachim Loehr ,  Hidetoshi Suzuki

IPC: H04W28/02 ,  H04W28/08 ,  H04W16/32 ,  H04W72/04

Abstract: The present disclosure mainly relates to improvements for the buffer status reporting and the logical channel prioritization procedures performed in the UE, in scenarios where the UE is in dual connectivity and the PDCP layer of the UE is shared in the uplink for MeNB and SeNB. According to the present disclosure, a ratio is introduced according to which the buffer values for the PDCP are split in the UE between the SeNB and the MeNB according to said ratio.

公开(公告)号：US20210314881A1

公开(公告)日：2021-10-07

申请号：US17355019

申请日：2021-06-22

Applicant: Sun Patent Trust

Inventor： Lilei Wang ,  Hidetoshi Suzuki ,  Sujuan Feng ,  Masayuki Hoshino ,  Joachim Loehr

IPC: H04W52/24 ,  H04W4/70 ,  H04W52/58 ,  H04W52/14 ,  H04W52/36 ,  H04W52/38 ,  H04W52/10

Abstract: The present disclosure provides a power control method in device to device (D2D) communication and a user equipment for performing the power control method. The method includes computing a power value of device to device (D2D) transmission of a user equipment performing D2D communication in a subframe in a serving cell, based on a power control adjustment state of a Long Term Evolution (LTE) wide area network (WAN) uplink channel of the user equipment and an offset or a ratio indicated by a transmit power control (TPC) command indicated in D2D grant or downlink control information (DCI) format 3/3A.

公开(公告)号：US11096084B2

公开(公告)日：2021-08-17

申请号：US16850475

申请日：2020-04-16

Applicant: Sun Patent Trust

Inventor： Prateek Basu Mallick ,  Joachim Loehr ,  Hidetoshi Suzuki

IPC: H04W28/08 ,  H04W28/02 ,  H04W16/32 ,  H04W72/04 ,  H04W84/04 ,  H04W80/02 ,  H04W80/06

Abstract: The present disclosure mainly relates to improvements for the buffer status reporting and the logical channel prioritization procedures performed in the UE, in scenarios where the UE is in dual connectivity and the PDCP layer of the UE is shared in the uplink for MeNB and SeNB. According to the present disclosure, a ratio is introduced according to which the buffer values for the PDCP are split in the UE between the SeNB and the MeNB according to said ratio.

公开(公告)号：US20210243733A1

公开(公告)日：2021-08-05

申请号：US17153654

申请日：2021-01-20

Applicant: Sun Patent Trust

Inventor： Ayako Horiuchi ,  Hidetoshi Suzuki ,  Akihiko Nishio ,  Masayuki Hoshino

IPC: H04W72/04 ,  H04B7/0417 ,  H04B7/06 ,  H04L5/00 ,  H04B7/0456

Abstract: A communication apparatus includes circuitry and a transmitter. The circuitry maps a precoded downlink control signal to one of a plurality of mapping candidates. The precoded downlink control signal is prepared using a first precoding for single-antenna port transmission with a single antenna port in localized allocation mode. The precoded downlink control signal is prepared using a second precoding for multi-antenna ports transmission with two antenna ports in distributed allocation mode. The plurality of mapping candidates is comprised of a plurality of aggregation levels, and one or more of the aggregation levels that is higher than a boundary among the plurality of aggregation levels is associated with only the multi-antenna ports transmission, the boundary being determined based on signaling indicated from the base station apparatus. The transmitter transmits the precoded downlink control signal.

公开(公告)号：US11076363B2

公开(公告)日：2021-07-27

申请号：US16875671

申请日：2020-05-15

Applicant: Sun Patent Trust

Inventor： Lilei Wang ,  Hidetoshi Suzuki ,  Sujuan Feng ,  Masayuki Hoshino ,  Joachim Loehr

IPC: H04W52/24 ,  H04W52/58 ,  H04W4/70 ,  H04W52/14 ,  H04W52/36 ,  H04W52/38 ,  H04W52/10

Abstract: The present disclosure provides a power control method in device to device (D2D) communication and a user equipment for performing the power control method. The method includes computing a power value of device to device (D2D) transmission of a user equipment performing D2D communication in a subframe in a serving cell, based on a power control adjustment state of a Long Term Evolution (LTE) wide area network (WAN) uplink channel of the user equipment and an offset or a ratio indicated by a transmit power control (TPC) command indicated in D2D grant or downlink control information (DCI) format 3/3A.

公开(公告)号：US20210194644A1

公开(公告)日：2021-06-24

申请号：US17195233

申请日：2021-03-08

Applicant: Sun Patent Trust

Inventor： Kazuki Takeda ,  Hidetoshi Suzuki ,  Ayako Horiuchi ,  Akihiko Nishio

IPC: H04L1/18 ,  H04W74/08 ,  H04L5/00 ,  H04W72/04

Abstract: A radio communication terminal that increases the ACK/NACK resource utilization efficiency while preventing ACK/NACK collision, and that causes no unnecessary reduction of the PUSCH band in a system that transmits E-PDCCH control information. The radio communication terminal adopts a configuration including a receiving section that receives a control signal including an ACK/NACK index via an enhanced physical downlink control channel (E-PDCCH) transmitted using one configuration from among one or a plurality of configuration candidates, a control section that selects a resource to be used for an ACK/NACK signal of downlink data from among specified resources specified beforehand based on E-PDCCH configuration information used for transmission or reception of the E-PDCCH and the ACK/NACK index, and a transmitting section that transmits the ACK/NACK signal using the selected specified resource.