公开(公告)号：US12273180B2

公开(公告)日：2025-04-08

申请号：US18389299

申请日：2023-11-14

Applicant: Kyocera Corporation

Inventor： Amit Kalhan ,  Henry Chang

IPC: H04B7/155 ,  H04B17/364 ,  H04L1/00 ,  H04L1/1829

Abstract: An origination device transmits a “received data signal” to a signal forwarding device. The “received data signal” comprises a first set of data. The origination device also transmits at least one “received control signal” to the signal forwarding device and to a destination device. The at least one “received control signal” comprises a first set of control information and a second set of control information. The first and second sets of control information are both associated with the first set of data. The first set of control information contains instructions pertaining to the signal forwarding device processing the first set of data. The second set of control information contains instructions pertaining to the destination device processing the first set of data. The signal forwarding device transmits a “forwarded signal” to the destination device. The “forwarded signal” contains forwarded data, based on the first set of data.

公开(公告)号：US12231874B2

公开(公告)日：2025-02-18

申请号：US17634049

申请日：2020-08-11

Applicant: Kyocera Corporation ,  Henry Chang ,  Masato Fujishiro

Inventor： Henry Chang ,  Masato Fujishiro

IPC: H04W36/08 ,  H04W36/30 ,  H04W36/36 ,  H04W36/00

Abstract: A user equipment (UE) device receives, from base station providing a source cell, a conditional handover command identifying a target frequency on a target cell for conditional handover. After determining that conditions have been met for the conditional handover, the UE device observes the target frequency. If the target frequency is occupied, the UE device transmits, to the serving base station, an indication that the target frequency is unavailable for the conditional handover. The indication may include, or be transmitted with, a measurement report.

公开(公告)号：US12200558B2

公开(公告)日：2025-01-14

申请号：US17384141

申请日：2021-07-23

Applicant: KYOCERA Corporation

Inventor： Masato Fujishiro ,  Henry Chang

IPC: H04W36/22 ,  H04W36/36

Abstract: A cell reselection control method according to one embodiment is a method performed by a user equipment in an RRC idle state or an RRC inactive state in an unlicensed band. The cell reselection control method includes determining a congestion level individually for a plurality of candidates that are a plurality of carrier frequencies belonging to the unlicensed band or a plurality of cells, extracting, from among the plurality of candidates, a candidate satisfying a selection criterion required for the candidate to be used as a serving cell of the user equipment, and selecting, from among a plurality of the extracted candidates, a cell to be used as the serving cell. At least one of the extracting a candidate or the selecting a cell is based on the congestion level determined in the determining.

公开(公告)号：US12048059B2

公开(公告)日：2024-07-23

申请号：US17289668

申请日：2019-11-01

Applicant: Kyocera Corporation ,  Amit Kalhan ,  Henry Chang

Inventor： Amit Kalhan ,  Henry Chang

IPC: H04W8/00 ,  H04L1/00 ,  H04L1/1867 ,  H04W4/46 ,  H04W84/18

CPC classification number: H04W8/005 ,  H04L1/0003 ,  H04L1/1896 ,  H04W4/46 ,  H04W84/18

Abstract: The methods, devices, and systems discussed herein describe a wireless communication device transmitting a discovery channel message, at least a portion of which, is embedded in the control channel of a groupcast transmission. In some examples, the discovery channel message is transmitted using a pre-defined, fixed transmit power and modulation and coding scheme (MCS), which facilitates the receiving wireless communication devices' ability to decode the control channel, including the embedded discovery channel message. If a receiving wireless communication device can decode the discovery channel message above a configured threshold (e.g., a received power threshold and/or a signal-to-noise ratio (SNR)) but is unable to decode the data portion of the groupcast transmission, which was intended for the receiving wireless communication device, then the receiving wireless communication device will transmit a negative-acknowledgement (NACK) to the wireless communication device that transmitted the groupcast transmission.

公开(公告)号：US12010753B2

公开(公告)日：2024-06-11

申请号：US17399624

申请日：2021-08-11

Applicant: KYOCERA Corporation

Inventor： Masato Fujishiro ,  Henry Chang

IPC: H04W76/27 ,  H04W76/32

CPC classification number: H04W76/27 ,  H04W76/32

Abstract: A communication control method according to one embodiment is a method in a mobile communication system. The communication control method includes receiving, by a user equipment in a Radio Resource Control (RRC) connected mode, an RRC release message from a base station, the RRC release message including a condition for releasing or suspending an RRC connection, performing, by the user equipment, data communication with the base station until the condition is met even in a case of receiving the RRC release message, and transitioning the user equipment to an RRC idle mode or an RRC inactive mode when the condition is met.

公开(公告)号：US11979765B2

公开(公告)日：2024-05-07

申请号：US17428554

申请日：2020-02-05

Applicant: Kyocera Corporation

Inventor： Henry Chang ,  Masato Fujishiro

IPC: H04W24/10 ,  H04W24/08 ,  H04W88/06

CPC classification number: H04W24/10 ,  H04W24/08 ,  H04W88/06

Abstract: A mobile wireless communication user equipment device (mobile device) simultaneously stores logs for two minimization drive tests (MDTs) where a first MDT is associated with a first radio access technology (RAT) and a second MDT is associated with a second RAT. The mobile device logs MDT data for both MDTs to generate two MDT logs. In response to a request, the mobile device transmits a requested MDT log where the MDT log may be transmitted to abase station of a RAT different from the RAT of the MDT log.

公开(公告)号：US11950275B2

公开(公告)日：2024-04-02

申请号：US18126848

申请日：2023-03-27

Applicant: Kyocera Corporation

Inventor： Amit Kalhan ,  Henry Chang

IPC: H04W72/543 ,  H04L5/00 ,  H04W72/54 ,  H04W76/14

CPC classification number: H04W72/543 ,  H04L5/0048 ,  H04W72/54 ,  H04W76/14

Abstract: A base station (eNB) determines device-to-device (D2D) transmission parameters for signal transmission over a D2D communication link between a first user equipment (UE) device and a second UE device. The eNB instructs the first UE device to transmit a reference signal that is received by the second UE device. The second UE device reports D2D channel characteristic information indicative of the received reference signal. Based on the D2D channel characteristic information, the base station determines the D2D transmission parameters and provides the parameters to the first UE device.

公开(公告)号：US11895725B2

公开(公告)日：2024-02-06

申请号：US17337246

申请日：2021-06-02

Applicant: KYOCERA Corporation

Inventor： Masato Fujishiro ,  Noriyoshi Fukuta ,  Henry Chang

IPC: H04W76/27 ,  H04W8/18 ,  H04W72/02 ,  H04W52/02 ,  H04W60/00 ,  H04W72/12 ,  H04W48/20 ,  H04W72/23 ,  H04W84/12 ,  H04W88/02

CPC classification number: H04W76/27 ,  H04W8/18 ,  H04W52/02 ,  H04W60/00 ,  H04W72/02 ,  H04W72/12 ,  H04W48/20 ,  H04W72/23 ,  H04W84/12 ,  H04W88/02 ,  Y02D30/70

Abstract: A user equipment, apparatus and method for a user equipment includes receiving, from a network, configuration information indicating whether transmission of a specific uplink signal is possible when the user equipment is in a specific state where an RRC connection of the user equipment is suspended. The specific uplink signal is an uplink signal that the user equipment can transmit when the user equipment is in an RRC connected state. A determination is made, based on the configuration information, whether to transmit the specific uplink signal when the user equipment is in the specific state.

公开(公告)号：US11716754B2

公开(公告)日：2023-08-01

申请号：US17660954

申请日：2022-04-27

Applicant: KYOCERA Corporation

Inventor： Masato Fujishiro ,  Chiharu Yamazaki ,  Henry Chang

IPC: H04W74/00 ,  H04W76/27 ,  H04W52/02 ,  H04W74/08 ,  H04W72/21 ,  H04W72/23

CPC classification number: H04W74/002 ,  H04W52/0229 ,  H04W72/21 ,  H04W72/23 ,  H04W74/0833 ,  H04W76/27

Abstract: A communication control method used in a user equipment, user equipment, and apparatus for controlling a user equipment used in a user equipment perform early data transmission in which uplink user data is transmitted during a random access procedure. The user equipment receives from a base station, a first timer value for a random access procedure without the early data transmission and a second timer value for a random access procedure with the early data transmission, selects the second timer value in response to determining that the user equipment performs the early data transmission, and starts a timer configured with the second timer value in response to transmitting the uplink data by the early data transmission.

公开(公告)号：US11632770B2

公开(公告)日：2023-04-18

申请号：US17514923

申请日：2021-10-29

Applicant: Kyocera Corporation

Inventor： Amit Kalhan ,  Henry Chang

IPC: H04W72/12 ,  H04W72/08 ,  H04W76/14 ,  H04W74/08 ,  H04W28/02 ,  H04L47/26 ,  H04W72/1263 ,  H04W28/16 ,  H04W92/18 ,  H04W88/02

Abstract: In a communication system having a plurality of user equipment (UE) devices that are operating in a contention based mode for device-to-device (D2D) communication, each UE device transmits a preferred transmission indicator when a condition for preferred transmission is met at the UE device. If a UE device receives a preferred transmission indicator, the UE device delays transmission of a D2D scheduling assignment (SA) to contend for communication resources for D2D communication. The length of the delay can be based on a number of preferred transmission indicators that are received. The preferred transmission indicator is based on a buffer size in one example.