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    ALLOCATING RESOURCES FOR A DEVICE-TO-DEVICE TRANSMISSION
    41.
    发明公开
    ALLOCATING RESOURCES FOR A DEVICE-TO-DEVICE TRANSMISSION 审中-公开

    公开(公告)号：US20230199791A1

    公开(公告)日：2023-06-22

    申请号：US18165205

    申请日：2023-02-06

    Applicant: BlackBerry Limited

    Inventor： Rene Faurie ,  Eswar Vutukuri ,  Takashi Suzuki

    IPC: H04W72/23 ,  H04W72/04 ,  H04W72/542

    CPC classification number: H04W72/23 ,  H04W72/04 ,  H04W72/542 ,  H04W8/005

    Abstract: A method for allocating resources for device-to-device transmission between two or more user equipment (UEs) includes transmitting, from a first UE to a second UE, a resource allocation configuration for device-to-device communications. A resource request for a device-to-device transmission is received from the second UE. In response to the resource request, a resource for the device-to-device transmission is selected at the first UE. A resource grant is transmitted to the second UE. The resource grant identifies the selected resource. A device-to-device transmission is received from the second UE over the selected resource.

    Switching between network based and relay based operation for mission critical voice call
    42.
    发明授权
    Switching between network based and relay based operation for mission critical voice call 有权

    公开(公告)号：US11184828B2

    公开(公告)日：2021-11-23

    申请号：US16723888

    申请日：2019-12-20

    Applicant: BlackBerry Limited

    Inventor： Eswar Vutukuri ,  Takashi Suzuki ,  René Faurie

    IPC: H04L12/28 ,  H04W36/30 ,  H04W4/10 ,  H04W40/22 ,  H04J1/16 ,  H04W88/04

    Abstract: A device, serving cell and method of switching between modes of operation for the device in a cellular network comprises receiving a service via a connection with the serving cell. A condition indicative of deterioration in network service and an absence of a suitable neighbor cell are detected. In response, discovery of relay nodes is initiated. When a suitable relay node is discovered, a mechanism to switch to receiving the service via the suitable relay node is initiated. The service may be a mission critical push-to-talk over Long Term Evolution service. The relay node may be user equipment acting as a user equipment-to-network relay node. When the device is in an RCC_CONNECTED state, the mechanism to switch includes sending a relay mode preference indication to the serving cell, receiving a connection release message from the serving cell, releasing the serving cell connection, and establishing a sidelink connection with the relay.

    Sending reports of asset transport status
    44.
    发明授权
    Sending reports of asset transport status 有权

    公开(公告)号：US10936990B2

    公开(公告)日：2021-03-02

    申请号：US15372367

    申请日：2016-12-07

    Applicant: BlackBerry Limited

    Inventor： Eswar Vutukuri ,  Stephen John Barrett

    IPC: G06Q50/30 ,  G06Q10/08 ,  H04W4/029 ,  H04W4/35

    Abstract: In some examples, a device includes a processor configured to compare a current transport status of the asset to a predicted transport status of the asset at each respective time instance of a plurality of time instances, and in response to determining that the current transport status does not differ from the predicted transport status by greater than a specified threshold, skip sending a report relating to the current transport status to a service over a network at the respective time instance of the plurality of time instances.

    Medium Access Control in LTE-U
    47.
    发明授权
    Medium Access Control in LTE-U 有权

    公开(公告)号：US10560891B2

    公开(公告)日：2020-02-11

    申请号：US14481808

    申请日：2014-09-09

    Applicant: BlackBerry Limited

    Inventor： Eswar Vutukuri ,  Takashi Suzuki ,  Nicholas William Anderson ,  Zhijun Cai

    IPC: H04W52/02 ,  H04W72/14 ,  H04W76/28

    Abstract: In some implementations, a Medium Access Control (MAC) method for LTE in Unlicensed (LTE-U) includes transmitting at least one of a Clear to Send (CTS) message or a Request to Send (RTS) message on an LTE-U Secondary Cell (SCell) carrier. The at least one of the CTS message or the RTS message may include a duration field. The duration field may indicate a transmission time of a transmission on a packet data shared channel on the LTE-U SCell carrier. An evolved NodeB (eNB) transmits a scheduling grant for the transmission on the packet data shared channel on the LTE-U SCell carrier.

    Power saving for tight coupled interworking
    49.
    发明授权
    Power saving for tight coupled interworking 有权

    公开(公告)号：US10470238B2

    公开(公告)日：2019-11-05

    申请号：US14542278

    申请日：2014-11-14

    Applicant: BlackBerry Limited

    Inventor： Zhijun Cai ,  James Randolph Winter Lepp ,  Eswar Vutukuri

    IPC: H04W76/28 ,  H04W52/02 ,  H04W84/12

    Abstract: In some implementations, a power saving method includes receiving, from a base station, at a user equipment (UE), a Discontinuous Reception (DRX) configuration. The UE determines a WLAN listen interval that includes at least one Traffic Indication Map (TIM) period and at least one TIM transmission period. The UE selects, based on the DRX configuration, a TIM message to monitor within an associated TIM transmission period from the at least one TIM transmission period in the listen interval. The UE determines a WLAN wakeup time that overlaps the associated TIM transmission period. During the associated TIM transmission periods, the UE receives, from an Access Point (AP), the selected TIM message.

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