公开(公告)号：US12048059B2

公开(公告)日：2024-07-23

申请号：US17289668

申请日：2019-11-01

申请人： Kyocera Corporation ,  Amit Kalhan ,  Henry Chang

发明人： Amit Kalhan ,  Henry Chang

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

CPC分类号： H04W8/005 ,  H04L1/0003 ,  H04L1/1896 ,  H04W4/46 ,  H04W84/18

摘要： 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

申请人： KYOCERA Corporation

发明人： Masato Fujishiro ,  Henry Chang

IPC分类号： H04W76/27 ,  H04W76/32

CPC分类号： H04W76/27 ,  H04W76/32

摘要： 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

申请人： Kyocera Corporation

发明人： Henry Chang ,  Masato Fujishiro

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

CPC分类号： H04W24/10 ,  H04W24/08 ,  H04W88/06

摘要： 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

申请人： Kyocera Corporation

发明人： Amit Kalhan ,  Henry Chang

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

CPC分类号： H04W72/543 ,  H04L5/0048 ,  H04W72/54 ,  H04W76/14

摘要： 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

申请人： KYOCERA Corporation

发明人： Masato Fujishiro ,  Noriyoshi Fukuta ,  Henry Chang

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

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

摘要： 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

申请人： KYOCERA Corporation

发明人： Masato Fujishiro ,  Chiharu Yamazaki ,  Henry Chang

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

CPC分类号： H04W74/002 ,  H04W52/0229 ,  H04W72/21 ,  H04W72/23 ,  H04W74/0833 ,  H04W76/27

摘要： 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

申请人： Kyocera Corporation

发明人： Amit Kalhan ,  Henry Chang

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

摘要： 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.

公开(公告)号：US11558723B2

公开(公告)日：2023-01-17

申请号：US16339079

申请日：2017-10-04

申请人： Kyocera Corporation

发明人： Amit Kalhan ,  Henry Chang

IPC分类号： H04W4/70 ,  H04B7/0413 ,  H04L1/00 ,  H04L27/34 ,  H04J13/00 ,  H04W72/12 ,  H04W72/04 ,  H04L5/00 ,  H04W84/04

摘要： A base station transmits a layered data signal to multiple devices that are in close proximity to each other where the layered data signal includes at least first data on a first data layer directed to a first device and second data on a second data layer directed to a second device. The base station also transmits a single control message to both devices where the control message comprises location dependent control information directed to both devices. The control message also comprises data layer control information arranged in multiple fields where data layer control information in a field is associated with a device and allows the associated device to recover the data from a data layer assigned to the device.

公开(公告)号：US11388646B2

公开(公告)日：2022-07-12

申请号：US16786778

申请日：2020-02-10

申请人： KYOCERA Corporation

发明人： Masato Fujishiro ,  Henry Chang

IPC分类号： H04W4/00 ,  H04W36/38 ,  H04W76/11 ,  H04W36/00 ,  H04W36/08 ,  H04W36/22

摘要： A cell reselection control method according to one embodiment is a method in a mobile communication system. The cell reselection control method a step A of transmitting through a use of broadcast signaling, by a base station, as a redistribution parameter used for a redistribution function, a first redistribution parameter applied to a radio terminal in a first coverage and a second redistribution parameter applied to a radio terminal in a second coverage outside the first coverage, a step B of acquiring, by a radio terminal in an idle mode in the second coverage, the second redistribution parameter transmitted in the step A, and a step C of performing, by the radio terminal, cell reselection using the second redistribution parameter acquired in the step B. The redistribution function is a function of distributing cells and/or frequencies which a plurality of radio terminals in an idle mode reselects by cell reselection. The second coverage is a coverage extended by an enhanced coverage function including repetitive transmissions.

公开(公告)号：US11252612B2

公开(公告)日：2022-02-15

申请号：US16319761

申请日：2017-08-09

申请人： Kyocera Corporation

发明人： Henry Chang

IPC分类号： H04W4/00 ,  H04W28/22 ,  H04L29/06

摘要： A base station transmits a rate recommendation to a first user equipment (UE) device. The rate recommendation is to be used for a Voice over Long-Term Evolution (VoLTE) call between the first UE device and a second UE device. In some instances, the first UE device and the second UE device negotiate the rate to be used for the VoLTE call, based on the rate recommended by the base station. If the negotiated rate is supported by the base station and/or matches a supported codec rate, the UE devices implement the rate and provide rate feedback to the base station.