公开(公告)号：US20240080940A1

公开(公告)日：2024-03-07

申请号：US18505575

申请日：2023-11-09

Applicant: KYOCERA Corporation

Inventor： Masato FUJISHIRO ,  Henry CHANG

IPC: H04W76/40 ,  H04W68/02 ,  H04W76/20

CPC classification number: H04W76/40 ,  H04W68/02 ,  H04W76/20

Abstract: A communication control method according to a first aspect is performed by a user equipment in a mobile communication system for providing a multicast service to the user equipment, the communication control method including monitoring a paging message transmitted from a base station. The monitoring includes: monitoring, when an early paging notification signal is received from the base station, a first paging message that calls one or more user equipments being targets of unicast communication; and monitoring, when the user equipment has joined or is interested in a multicast session, a second paging message that notifies that one or more multicast sessions have been activated even when the early paging notification signal has not been received.

公开(公告)号：US20240080710A1

公开(公告)日：2024-03-07

申请号：US18505758

申请日：2023-11-09

Applicant: KYOCERA Corporation

Inventor： Masato FUJISHIRO

IPC: H04W28/02

CPC classification number: H04W28/0278

Abstract: In a first aspect, a communication control method is used in a cellular communication system. The communication control method includes calculating by a first relay node, a buffer size (BS) using a first calculation method among a plurality of calculation methods relating to the buffer size. The communication control method includes transmitting, by the first relay node to a parent node of the first relay node, a pre-emptive Buffer Status Report (BSR) including the buffer size.

公开(公告)号：US20240040662A1

公开(公告)日：2024-02-01

申请号：US18478762

申请日：2023-09-29

Applicant: KYOCERA Corporation

Inventor： Masato FUJISHIRO ,  Henry CHANG

IPC: H04W76/40 ,  H04W76/20

CPC classification number: H04W76/40 ,  H04W76/20

Abstract: A communication control method according to a first aspect is a method performed by a user equipment in a mobile communication system for providing a multicast broadcast service (MBS) from a base station to the user equipment. The communication control method includes receiving, from the base station, a PDCP packet encrypted by using a count value including a PDCP sequence number and a hyper frame number and transmitted in an MBS session; generating an inferred hyper frame number by inferring the hyper frame number; attempting decoding of the PDCP packet by using an inferred count value including the PDCP sequence number included in the PDCP packet received and the inferred hyper frame number; and determining the inferred hyper frame number as a valid hyper frame number when the decoding is successful.

公开(公告)号：US20230345346A1

公开(公告)日：2023-10-26

申请号：US18346409

申请日：2023-07-03

Applicant: KYOCERA CORPORATION

Inventor： Masato FUJISHIRO ,  Henry CHANG

IPC: H04W40/22 ,  H04W72/20 ,  H04W40/24 ,  H04W40/28

CPC classification number: H04W40/22 ,  H04W72/20 ,  H04W40/248 ,  H04W40/28

Abstract: In a first aspect, a communication control method is used in a cellular communication system. The communication control method includes receiving, by a relay node involved between a parent node and a child node, a flow control feedback message from the parent node or the child node. The communication control method includes executing, by the relay node, local rerouting to transfer a data packet to an alternative path, which is different from a path to the parent node or the child node transmitting the flow control feedback message, in response to a certain period elapsing after receiving the flow control feedback message.

公开(公告)号：US20230262533A1

公开(公告)日：2023-08-17

申请号：US18303820

申请日：2023-04-20

Applicant: KYOCERA Corporation

Inventor： Masato FUJISHIRO ,  Henry CHANG

IPC: H04W36/00 ,  H04W36/08

CPC classification number: H04W36/0007 ,  H04W36/08

Abstract: A communication control method is used in a mobile communication system for providing a multicast broadcast service (MBS) from a base station to user equipment, and includes receiving, by the base station from a core network or another base station, a specific Packet Data Convergence Protocol (PDCP) sequence number specified to be applied to an MBS packet; associating, by the base station, the MBS packet with the specific PDCP sequence number; and transmitting, by the base station to the user equipment, the MBS packet associated with the specific PDCP sequence number.

公开(公告)号：US20230262516A1

公开(公告)日：2023-08-17

申请号：US18305162

申请日：2023-04-21

Applicant: KYOCERA CORPORATION

Inventor： Masato FUJISHIRO ,  Henry CHANG

IPC: H04W28/02 ,  H04W40/24

CPC classification number: H04W28/0273 ,  H04W40/248

Abstract: In a first aspect, a communication control method is used in a cellular communication system. The communication control method includes transmitting, by a first relay node subordinate to a first donor base station, a first packet to a second donor base station different from the first donor base station. The communication control method includes forwarding, by the second donor base station, the first packet to the first donor base station by using a path for data forwarding, and transmitting, by the first donor base station, the first packet to a network.

公开(公告)号：US20230254745A1

公开(公告)日：2023-08-10

申请号：US18298924

申请日：2023-04-11

Applicant: KYOCERA Corporation

Inventor： Masato FUJISHIRO

IPC: H04W36/08 ,  H04W36/36

CPC classification number: H04W36/08 ,  H04W36/36

Abstract: In an embodiment, a communication control method is a communication control method used in a mobile communication system, the mobile communication system including a user equipment and a base station apparatus and being configured to perform wireless communication between the user equipment and the base station apparatus. The communication control method includes acquiring, by a first layer of the user equipment, slice information of a cell in which the user equipment exists, the slice information being transmitted from the base station apparatus, and notifying, by the first layer of the user equipment, a second layer of the user equipment of the slice information, the second layer being positioned higher than the first layer.

公开(公告)号：US20230208604A1

公开(公告)日：2023-06-29

申请号：US17921464

申请日：2021-05-11

Applicant: Kyocera Corporation

Inventor： Henry CHANG ,  Amit KALHAN ,  Masato FUJISHIRO

IPC: H04L5/00 ,  H04L1/1812 ,  H04L1/1829 ,  H04W72/542

CPC classification number: H04L5/0092 ,  H04L1/1812 ,  H04L1/1864 ,  H04W72/542

Abstract: A receiving user equipment (UE) device transmits a distance-based hybrid automatic repeat request (HARQ) feedback message to a transmitting UE device based on sidelink signal quality when location information is unavailable. The receiving UE device is one of a group of UE devices receiving a groupcast data transmission from the transmitting UE device where the groupcast data transmission comprises a distance-based hybrid automatic repeat request (HARQ) feedback configuration. When location information is unavailable to the receiving UE device, the receiving UE device transmits the distance-based HARQ feedback if the signal strength of a signal received from the transmitting UE device is above a threshold and does not send the HARQ feedback if the signal quality is below the threshold. The threshold may be received from the transmitting UE device.

公开(公告)号：US20230189299A1

公开(公告)日：2023-06-15

申请号：US18163605

申请日：2023-02-02

Applicant: KYOCERA Corporation

Inventor： Masato FUJISHIRO

IPC: H04W72/30 ,  H04W72/0457

CPC classification number: H04W72/30 ,  H04W72/0457

Abstract: A communication control method is used in a mobile communication system for providing a multicast broadcast service (MBS). The communication control method includes transmitting, by a base station, MBS data to user equipment in a first cell, transmitting, by the base station to the user equipment, a notification message indicating that an MBS cell being a cell used to transmit or receive the MBS data is to be changed from the first cell to a second cell, and receiving, by the user equipment configured to receive the MBS data from the base station, the notification message from the base station.

公开(公告)号：US20230180338A1

公开(公告)日：2023-06-08

申请号：US18164533

申请日：2023-02-03

Applicant: KYOCERA Corporation

Inventor： Masato FUJISHIRO

IPC: H04W76/20 ,  H04W74/08

CPC classification number: H04W76/20 ,  H04W74/0833

Abstract: In an embodiment, a communication control method is a communication control method in a mobile communication system including a user equipment and a base station apparatus, in which wireless communication is performed between the user equipment and the base station apparatus. The communication control method includes transmitting, by the user equipment in a Radio Resource Control (RRC) connected state, first preference information to the base station apparatus, and receiving, by the base station apparatus, the first preference information. The first preference information is information indicating that the user equipment in an RRC inactive state desires to perform transmission of data by using a message of a random access procedure and/or transmission of the data by using a preconfigured radio resource.