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公开(公告)号：US11917085B2
公开(公告)日：2024-02-27
申请号：US18305069
申请日：2023-04-21
申请人： BlackBerry Limited
CPC分类号： H04L9/3268 , H04L9/0825 , H04L9/321 , H04L9/3247 , H04W4/40 , H04L67/12 , H04L2209/84
摘要： A method at a computing device within an Intelligent Transportation System, the method comprising: determining, at the computing device, whether a short-term certificate is available to sign a message; if the short-term certificate is available, signing the message with a private key associated with the short-term certificate; if the short-term certificate is not available, signing the message with a private key associated with a long-term certificate; and sending the message to a recipient.
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2.发明授权公开(公告)号：US11868949B2
公开(公告)日：2024-01-09
申请号：US17989363
申请日：2022-11-17
申请人： BlackBerry Limited
IPC分类号： G06Q10/0833 , H04W4/44 , H04W4/029 , G01S5/00 , H04W4/02
CPC分类号： G06Q10/0833 , G01S5/0027 , H04W4/027 , H04W4/029 , H04W4/44
摘要： A method at an asset tracking device, the method including activating a receiver at the asset tracking device; obtaining an intelligent transportation system message using the receiver; determining a position from the intelligent transportation system message; and reporting the determined position to a remote server.
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3.发明申请公开(公告)号：US20230074875A1
公开(公告)日：2023-03-09
申请号：US17989363
申请日：2022-11-17
申请人： BlackBerry Limited
摘要： A method at an asset tracking device, the method including activating a receiver at the asset tracking device; obtaining an intelligent transportation system message using the receiver; determining a position from the intelligent transportation system message; and reporting the determined position to a remote server.
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公开(公告)号：US10939294B2
公开(公告)日：2021-03-02
申请号：US15968980
申请日：2018-05-02
申请人： BlackBerry Limited
摘要： A user equipment (UE) sends, to a wireless access node in a wireless local area network (WLAN), a network access identifier (NAI) that includes an identifier for a cellular access network node. The UE receives an authentication challenge based on information in the NAI.
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公开(公告)号：US10728729B2
公开(公告)日：2020-07-28
申请号：US15455819
申请日：2017-03-10
申请人： BlackBerry Limited
发明人： James Randolph Winter Lepp , Stephen John Barrett , Ian Christopher Drummond Doig , Gordon Peter Young , Michael Peter Montemurro
摘要： A method at a power-limited computing station for communicating in an intelligent transport system, the method including operating the computing station in one of a non-critical radio operating state and a safety-critical radio operating state; receiving a trigger at the computing station; determining whether the trigger should cause the computing station to transition a radio operating state; and if the trigger should cause the computing station to transition the radio operating state, changing the radio operating state to the other of the non-critical radio operating state and the safety-critical radio operating state.
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公开(公告)号：US20200045508A1
公开(公告)日：2020-02-06
申请号：US16528218
申请日：2019-07-31
申请人： BlackBerry Limited
摘要： A method is provided for providing application data. The method includes a network node receiving at least one application identifier (App-ID) associated with at least a first user equipment (UE) and a second UE; the network node requesting to receive notifications of updates to application data associated with the at least one App-ID; the network node configuring a broadcast entity to transmit application data associated with the at least one App-ID; and the network node sending configuration data to the first and second UEs for receiving application data from the broadcast entity.
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公开(公告)号：US10405279B2
公开(公告)日：2019-09-03
申请号：US16119044
申请日：2018-08-31
摘要： A method for control of data transmission in a wireless communication system includes receiving, by an application, from a modem, information indicative of a radio coverage condition, where a user equipment (UE) includes the application and the modem; based on the received information, determining that the UE is in an enhanced coverage state; and in response to the determining, controlling uplink data transmission by the modem to reduce power consumption of the UE.
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公开(公告)号：US10327113B2
公开(公告)日：2019-06-18
申请号：US16037820
申请日：2018-07-17
申请人： BlackBerry Limited
摘要： In some examples, a first push-to-talk (PTT) client that has access to a wide area network (WAN) performs distributed control for a PTT session in conjunction with distributed control for the PTT session performed by another PTT client in the PTT session, the distributed control by the first PTT client performed without use of any PTT server.
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公开(公告)号：US20190096243A1
公开(公告)日：2019-03-28
申请号：US15714630
申请日：2017-09-25
申请人： BlackBerry Limited
发明人： Ian Christopher Dummond Doig , Stephen John Barrett , Nicholas Patrick Alfano , James Randolph Winter Lepp , Roland Emlyn Williams
IPC分类号： G08G1/09
摘要： A method at a computing device for the computing device to act as an intelligent transportation system (ITS) station for a vehicle, the method including detecting that the computing device is proximate to the vehicle; determining whether ITS messages are being sent on behalf of the vehicle; and if the determining finds ITS messages are not being sent on behalf of the vehicle, the computing device acting as the ITS station for the vehicle.
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公开(公告)号：US20190014447A1
公开(公告)日：2019-01-10
申请号：US16037820
申请日：2018-07-17
申请人： BlackBerry Limited
摘要： In some examples, a first push-to-talk (PTT) client that has access to a wide area network (WAN) performs distributed control for a PTT session in conjunction with distributed control for the PTT session performed by another PTT client in the PTT session, the distributed control by the first PTT client performed without use of any PTT server.
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