公开(公告)号：US11979804B2

公开(公告)日：2024-05-07

申请号：US17289638

申请日：2019-11-01

Applicant: Kyocera Corporation

Inventor： Amit Kalhan ,  Henry Chang

IPC: H04W4/46 ,  H04W4/021 ,  H04W72/0446 ,  H04W72/20 ,  H04W84/18

CPC classification number: H04W4/46 ,  H04W4/021 ,  H04W72/0446 ,  H04W72/20 ,  H04W84/18

Abstract: The methods and systems discussed herein describe how a first wireless communication device forwards a reservation signal, which identifies one or more time-slots that have been reserved by a second wireless communication device, to avoid “merging collisions.” In some examples, the first wireless communication device determines that it should forward the reservation signal based on a determination that the first wireless communication device is located at the edge of a coverage area associated with the second wireless communication device. This determination can be based on location information associated with the second wireless communication device or whether a received power value of the reservation signal is within a pre-defined threshold range value. In other examples, the first wireless communication device transmits an updated forwarded reservation signal, which is an update of a previously forwarded reservation signal in which multiple time-slots were reserved.

公开(公告)号：US11950276B2

公开(公告)日：2024-04-02

申请号：US15930202

申请日：2020-05-12

Applicant: Kyocera Corporation

Inventor： Henry Chang ,  Amit Kalhan

IPC: H04W72/04 ,  H04W16/14 ,  H04W72/56 ,  H04W74/0808 ,  H04W84/12 ,  H04W88/10

CPC classification number: H04W72/56 ,  H04W16/14 ,  H04W74/0808 ,  H04W84/12 ,  H04W88/10

Abstract: An eNodeB transmits a high priority indicator within a licensed frequency band. In response to receiving the high priority indicator, other eNodeBs refrain from transmitting signals within an unlicensed frequency band. After determining that no other eNodeBs are transmitting signals within the unlicensed frequency band, the eNodeB transmitting the high priority indicator transmits signals to a user equipment (UE) device.

公开(公告)号：US11778532B2

公开(公告)日：2023-10-03

申请号：US17718519

申请日：2022-04-12

Applicant: Kyocera Corporation

Inventor： Amit Kalhan ,  Henry Chang

IPC: H04W24/10 ,  H04W36/20 ,  H04W36/00 ,  H04W36/08 ,  H04W36/38 ,  H04W48/10 ,  H04W72/23 ,  H04W72/541 ,  H04W88/02

CPC classification number: H04W36/20 ,  H04W24/10 ,  H04W36/0058 ,  H04W36/0061 ,  H04W36/0072 ,  H04W36/00837 ,  H04W36/08 ,  H04W36/38 ,  H04W48/10 ,  H04W72/23 ,  H04W72/541 ,  H04W88/02

Abstract: A neighboring cell determines that uplink interference from an unmanned aerial vehicle (UAV) exceeds a first threshold at the neighboring cell. The neighboring cell transmits an uplink interference indicator to the UAV. In some examples, the UAV informs its serving cell of the uplink interference experienced by the neighboring cell. The serving cell can utilize information received from the UAV to make handover decisions or scheduling decisions for the UAV that caused the uplink interference. In other examples, the UAV can temporarily refrain from transmitting on at least some of its uplink resources or utilize different uplink resources for uplink data transmissions. In still other examples, the UAV can utilize downlink measurements to select which neighboring base station System Information Block messages should be monitored for an uplink interference indicator.

公开(公告)号：US11653380B2

公开(公告)日：2023-05-16

申请号：US17825147

申请日：2022-05-26

Applicant: Kyocera Corporation

Inventor： Amit Kalhan ,  Henry Chang

IPC: H04W72/56 ,  H04L67/104 ,  H04W4/08 ,  H04W4/70 ,  H04W24/08 ,  H04W36/00 ,  H04W36/30 ,  H04W36/36 ,  H04W48/14 ,  H04W56/00 ,  H04W72/0453 ,  H04W72/21 ,  H04W72/20 ,  H04W72/51 ,  H04W76/14 ,  H04W72/12 ,  H04W88/02 ,  H04W88/08

CPC classification number: H04W72/56 ,  H04L67/104 ,  H04W4/08 ,  H04W4/70 ,  H04W24/08 ,  H04W36/0022 ,  H04W36/0061 ,  H04W36/305 ,  H04W36/36 ,  H04W48/14 ,  H04W56/001 ,  H04W56/0015 ,  H04W72/0453 ,  H04W72/20 ,  H04W72/21 ,  H04W72/51 ,  H04W76/14 ,  H04W72/1215 ,  H04W88/02 ,  H04W88/08

Abstract: A base station assigns a first set of device-to-device (D2D) communication resources to a first D2D group and assigns a second set of D2D communication resources to a second D2D group. The D2D communication resources of the first set are different from the D2D communication resources of the second set. The first set of D2D communication resources and the second set of D2D communication resources are subsets of reserved D2D communication resources which are a subset of defined uplink communication resources defined by a communication specification for uplink communication between the D2D UE devices and a base station where the reserved D2D communication resources not used for uplink transmission to the base station.

公开(公告)号：US11363615B2

公开(公告)日：2022-06-14

申请号：US15311782

申请日：2015-05-22

Applicant: Kyocera Corporation

Inventor： Amit Kalhan ,  Henry Chang

IPC: H04W72/12 ,  H04W76/14 ,  H04W4/70 ,  H04L5/00 ,  H04L27/00 ,  H04W74/08 ,  H04W84/12 ,  H04B7/26 ,  H04W16/14 ,  H04W24/10 ,  H04W72/04 ,  H04W72/08 ,  H04W24/08 ,  H04W72/02 ,  H04W88/06 ,  H04W88/08

Abstract: Communication equipment communicating in a licensed frequency band identifies unused unlicensed communication resources within an unlicensed frequency band. The communication equipment uses the identified unlicensed communication resources to communicate within the unlicensed frequency band. In some circumstances, the unused unlicensed communication resources are identified based on resource information received from a base station where the resource information identifies unlicensed communication resources that will be used by the base station. In other circumstances, the unused unlicensed communication resources are identified based on frequency band measurements of the unlicensed frequency band over an observation time duration longer than a sensing time duration used by unlicensed equipment using the unlicensed frequency band.

公开(公告)号：US11212711B2

公开(公告)日：2021-12-28

申请号：US16762419

申请日：2018-11-13

Applicant: Kyocera Corporation

Inventor： Henry Chang ,  Amit Kalhan ,  Masato Fujishiro

IPC: H04W36/00 ,  B64C39/02 ,  H04W16/24 ,  H04W36/04 ,  H04W74/00 ,  H04W36/20 ,  H04W72/04 ,  H04B7/185

Abstract: An unmanned aerial vehicle (UAV) calculates an estimated uplink interference caused by the UAV at a neighboring cell based on a downlink signal received from the neighboring cell. Based on the estimated uplink interference, the UAV monitors downlink messages transmitted from the neighboring cell. If the uplink interference experienced by the neighboring cell exceeds an interference threshold, the neighboring cell transmits a downlink message, which includes an uplink interference indicator, to the UAV. Upon receipt of the uplink interference indicator, the UAV transmits a measurement report, including the uplink interference indicator, to the serving cell. In some cases, the serving cell transmits a handover command to the UAV based at least partially on the measurement report. The serving cell may also maintain a mobility history for the neighboring cell. The mobility history indicates a history of uplink interference problems and/or UAV handover availability for the neighboring cell.

公开(公告)号：US11153790B2

公开(公告)日：2021-10-19

申请号：US16762434

申请日：2018-11-13

Applicant: Kyocera Corporation

Inventor： Henry Chang ,  Amit Kalhan ,  Masato Fujishiro

IPC: H04W36/00 ,  H04W16/24 ,  H04W36/04 ,  H04W74/00 ,  H04W36/20 ,  H04W72/04 ,  B64C39/02 ,  H04B7/185

Abstract: An unmanned aerial vehicle (UAV) calculates an estimated uplink interference caused by the UAV at a neighboring cell based on a downlink signal received from the neighboring cell. Based on the estimated uplink interference, the UAV monitors downlink messages transmitted from the neighboring cell. If the uplink interference experienced by the neighboring cell exceeds an interference threshold, the neighboring cell transmits a downlink message, which includes an uplink interference indicator, to the UAV. Upon receipt of the uplink interference indicator, the UAV transmits a measurement report, including the uplink interference indicator, to the serving cell. In some cases, the serving cell transmits an interface availability message and a handover command to the UAV based at least partially on the measurement report. The serving cell may maintain a mobility history for the neighboring cell, which indicates a history of uplink interference problems and/or UAV handover availability for the neighboring cell.

公开(公告)号：US11071107B2

公开(公告)日：2021-07-20

申请号：US16528294

申请日：2019-07-31

Applicant: Kyocera Corporation

Inventor： Amit Kalhan

IPC: H04W72/04 ,  H04L27/26 ,  H04W28/06 ,  H04L1/00 ,  H04W56/00 ,  H04L5/00 ,  H04L1/02

Abstract: Control information (126) related to the reception of data (128) within a subframe (116) is transmitted over multiple subframes (113, 116) over multiple carrier (107, 108) from communication system infrastructure (102). A controller (134) in a mobile wireless communication device (104) reconstructs the control information (126) received over multiple subframes (113, 116) based on at least some control information (130) in a first physical control channel (118) in a first subframe (113) transmitted over a first carrier (107) and at least some other control information (132) in a second physical control channel (120) in a second subframe (116) transmitted over a second carrier (108).

公开(公告)号：US10952096B2

公开(公告)日：2021-03-16

申请号：US16568121

申请日：2019-09-11

Applicant: KYOCERA Corporation

Inventor： Masato Fujishiro ,  Chiharu Yamazaki ,  Henry Chang ,  Amit Kalhan

IPC: H04W76/11 ,  H04W28/06 ,  H04W4/06 ,  H04W72/04

Abstract: A base station includes a controller that performs multicast service SC-PTM transmission, and a transmitter that transmits SC-PTM configuration information related to a configuration of the SC-PTM transmission via a SC-PTM control channel, which is a logical channel different from a MCCH, and transmits multicast data via a traffic channel for the SC-PTM transmission. Each of the SC-PTM control channel and the traffic channel is mapped on a DL-SCH. The transmitter transmits a SIB related to the SC-PTM control channel via a BCCH, transmits first resource allocation information for transmitting the SC-PTM configuration information via a PDCCH, where a predetermined RNTI for the SC-PTM control channel is applied to transmission of the first resource allocation information, and transmits second resource allocation information for transmitting multicast data by the SC-PTM transmission via the PDCCH. A G-RNTI different from the predetermined RNTI is applied to transmission of the second resource allocation information.

公开(公告)号：US10721748B2

公开(公告)日：2020-07-21

申请号：US15311768

申请日：2015-05-22

Applicant: Amit Kalhan ,  Kyocera Corporation

Inventor： Amit Kalhan

IPC: H04W72/12 ,  H04W72/02 ,  H04W24/08 ,  H04W72/04 ,  H04W76/14 ,  H04W4/70 ,  H04L5/00 ,  H04L27/00 ,  H04W74/08 ,  H04W84/12 ,  H04B7/26 ,  H04W16/14 ,  H04W24/10 ,  H04W72/08 ,  H04W88/06 ,  H04W88/08

Abstract: A transmitting user equipment (UE) device transmits scheduling assignment information within a scheduling assignment region of a physical channel structure where the physical channel structure is defined by at least one revision of a communication specification governing communication within a licensed frequency band. The scheduling assignment information identifies time-frequency communication resources of an unlicensed frequency band. The transmitting UE device transmits data to a receiving UE device using the time-frequency communication resources of the unlicensed frequency band.