Patents by Inventor Xuemin SHEN
Xuemin SHEN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20220304049Abstract: A method, apparatus and system for medium access control is provided. Time slots configured to include mini slots at the beginnings thereof. Devices are assigned time slot, mini slot combinations as transmission opportunities. A device can attempt to use a transmission opportunity when it has a packet to send, by beginning data transmission in its assigned slot and mini slot and potentially continuing the transmission up until the end of the assigned slot. If another device is already transmitting in the assigned slot, the device refrains from using its transmission opportunity. Higher priority devices can be assigned transmission opportunities corresponding to earlier mini slots within a slot. In some embodiments, multiple devices can be assigned the same transmission opportunity and a collision detection mechanism can be employed. In some embodiments, all devices detect if a slot is idle and advance the beginning of the next slot upon such detection.Type: ApplicationFiled: June 10, 2022Publication date: September 22, 2022Applicant: Huawei Technologies Canada Co., Ltd.Inventors: Weihua ZHUANG, Jie GAO, Xuemin SHEN, Xu LI
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Patent number: 11363629Abstract: A method, apparatus and system for medium access control is provided. Time slots configured to include mini slots at the beginnings thereof. Devices are assigned time slot, mini slot combinations as transmission opportunities. A device can attempt to use a transmission opportunity when it has a packet to send, by beginning data transmission in its assigned slot and mini slot and potentially continuing the transmission up until the end of the assigned slot. If another device is already transmitting in the assigned slot, the device refrains from using its transmission opportunity. Higher priority devices can be assigned transmission opportunities corresponding to earlier mini slots within a slot. In some embodiments, multiple devices can be assigned the same transmission opportunity and a collision detection mechanism can be employed. In some embodiments, all devices detect if a slot is idle and advance the beginning of the next slot upon such detection.Type: GrantFiled: July 31, 2020Date of Patent: June 14, 2022Assignee: HUAWEI TECHNOLOGIES CANADA CO., LTD.Inventors: Weihua Zhuang, Jie Gao, Xuemin Shen, Xu Li
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Publication number: 20220039153Abstract: A method, apparatus and system for medium access control is provided. Time slots configured to include mini slots at the beginnings thereof. Devices are assigned time slot, mini slot combinations as transmission opportunities. A device can attempt to use a transmission opportunity when it has a packet to send, by beginning data transmission in its assigned slot and mini slot and potentially continuing the transmission up until the end of the assigned slot. If another device is already transmitting in the assigned slot, the device refrains from using its transmission opportunity. Higher priority devices can be assigned transmission opportunities corresponding to earlier mini slots within a slot. In some embodiments, multiple devices can be assigned the same transmission opportunity and a collision detection mechanism can be employed. In some embodiments, all devices detect if a slot is idle and advance the beginning of the next slot upon such detection.Type: ApplicationFiled: July 31, 2020Publication date: February 3, 2022Applicant: Huawei Technologies Canada Co., Ltd.Inventors: Weihua ZHUANG, Jie GAO, Xuemin SHEN, Xu LI
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Patent number: 11026072Abstract: A system and method for providing improved in-vehicle wireless connection to roadside access devices for connection to network is described. The system includes an in-vehicle device, one or more roadside access devices, a cloud management server, and backhaul Internet access connection. The roadside access device includes in its broadcasted beacon frame message information required by an in-vehicle device to set network connection parameters. The in-vehicle device automatically connects to roadside access devices for access to the network, using information included in the broadcasted beacon frame message. The in-vehicle device also manages and categorizes data traffic, maps user priority assigned to data traffic to network transmission priority, and adapts transmission rates to network condition, such as backhaul network bandwidth available, number of mobile users connected to the same roadside access devices and data traffic load, among others.Type: GrantFiled: October 31, 2017Date of Patent: June 1, 2021Inventors: Xuemin Shen, Wenchao Xu, Haibo Zhou
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Publication number: 20190268741Abstract: A system and method for providing improved in-vehicle wireless connection to roadside access devices for connection to network is described. The system includes an in-vehicle device, one or more roadside access devices, a cloud management server, and backhaul Internet access connection. The roadside access device includes in its broadcasted beacon frame message information required by an in-vehicle device to set network connection parameters. The in-vehicle device automatically connects to roadside access devices for access to the network, using information included in the broadcasted beacon frame message. The in-vehicle device also manages and categorizes data traffic, maps user priority assigned to data traffic to network transmission priority, and adapts transmission rates to network condition, such as backhaul network bandwidth available, number of mobile users connected to the same roadside access devices and data traffic load, among others.Type: ApplicationFiled: October 31, 2017Publication date: August 29, 2019Inventors: Xuemin SHEN, Wenchao XU, Haibo ZHOU
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Patent number: 10299232Abstract: The invention generally relates to the field of vehicular communications. In particular, the invention relates to method, system and apparatus for establishing and maintaining vehicular communications, such as wireless vehicular communications in a vehicular ad hoc network (VANET).Type: GrantFiled: October 14, 2015Date of Patent: May 21, 2019Inventors: Xuemin Shen, Hassan Aboubakr Omar, Ning Lu, Sailesh Bharati, Weihua Zhuang
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Patent number: 10292163Abstract: Methods and systems for device-to-device (D2D) communication between a first device and a second device. The first device receives a communication transmitted by the second device, where the communication is intended for another recipient other than the first device. The communication provides information for the first device to determine a preferred transmit sector to be used by the second device for the D2D communication. The first device transmits a communication to the second device that provides information indentifying the preferred transmit sector to be used by the second device. As a receiver in the D2D communication, the first device receives data from the second device, transmitted on the preferred transmit sector. As a transmitter in the D2D communication, the first device transmits data to the second device on a preferred transmit sector identified in another communication received from the second device.Type: GrantFiled: November 23, 2016Date of Patent: May 14, 2019Assignee: HUAWEI TECHNOLOGIES CANADA CO., LTD.Inventors: Xuemin Shen, Miao Wang, Qinghua Shen, Osama Aboul-Magd, Yan Xin, Kwok Shum Au, Sheng Sun
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Patent number: 10250312Abstract: Methods and systems for simultaneous transmission between a transmitter and a plurality of receivers. The transmitter receives information identifying respective preferred transmission sectors for transmission from the transmitter to each receiver. The transmitter transmits a first multi-user simultaneous transmission to a first set of two or more receivers. The first set of receivers is selected for the first set by identifying that the preferred transmission sectors for transmission to the first set of receivers are included in a first virtual grouping of two or more transmission sectors. The two or more transmission sectors belonging to the first virtual grouping are defined by the transmitter.Type: GrantFiled: November 23, 2016Date of Patent: April 2, 2019Assignee: HUAWEI TECHNOLOGIES CANADA CO., LTD.Inventors: Xuemin Shen, Miao Wang, Khalid Aldubaikhy, Osama Aboul-Magd, Yan Xin, Kwok Shum Au, Sheng Sun
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Publication number: 20180146466Abstract: Methods and systems for device-to-device (D2D) communication between a first device and a second device. The first device receives a communication transmitted by the second device, where the communication is intended for another recipient other than the first device. The communication provides information for the first device to determine a preferred transmit sector to be used by the second device for the D2D communication. The first device transmits a communication to the second device that provides information indentifying the preferred transmit sector to be used by the second device. As a receiver in the D2D communication, the first device receives data from the second device, transmitted on the preferred transmit sector. As a transmitter in the D2D communication, the first device transmits data to the second device on a preferred transmit sector identified in another communication received from the second device.Type: ApplicationFiled: November 23, 2016Publication date: May 24, 2018Inventors: Xuemin Shen, Miao Wang, Qinghua Shen, Osama Aboul-Magd, Yan Xin, Kwok Shum Au, Sheng Sun
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Publication number: 20180145732Abstract: Methods and systems for simultaneous transmission between a transmitter and a plurality of receivers. The transmitter receives information identifying respective preferred transmission sectors for transmission from the transmitter to each receiver. The transmitter transmits a first multi-user simultaneous transmission to a first set of two or more receivers. The first set of receivers is selected for the first set by identifying that the preferred transmission sectors for transmission to the first set of receivers are included in a first virtual grouping of two or more transmission sectors. The two or more transmission sectors belonging to the first virtual grouping are defined by the transmitter.Type: ApplicationFiled: November 23, 2016Publication date: May 24, 2018Inventors: Xuemin Shen, Miao Wang, Khalid Aldubaikhy, Osama Aboul-Magd, Yan Xin, Kwok Shum Au, Sheng Sun
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Publication number: 20170238270Abstract: The invention generally relates to the field of vehicular communications. In particular, the invention relates to method, system and apparatus for establishing and maintaining vehicular communications, such as wireless vehicular communications in a vehicular ad hoc network (VANET).Type: ApplicationFiled: October 14, 2015Publication date: August 17, 2017Inventors: Xuemin SHEN, Hassan Aboubakr OMAR, Ning LU, Sailesh BHARATI, Weihua ZHUANG