Patents by Inventor Zhihang Yi
Zhihang Yi 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).
-
Patent number: 11943085Abstract: A circuit includes a polar transmitter to generate a radio frequency output from amplitude and phase signal components. The polar transmitter includes an amplifier to combine amplitude and phase signal components. A processor is coupled to the polar transmitter to provide the amplitude and phase signal components. The processor includes: a digital modulation circuit to generate a modulated digital signal including in-phase and quadrature signal components and a correction circuit to calculate and apply a complex digital offset for local oscillator feedthrough of the amplifier. The complex digital offset includes an in-phase offset correction factor and a quadrature offset correction factor.Type: GrantFiled: November 28, 2022Date of Patent: March 26, 2024Assignee: Huawei Technologies Co., Ltd.Inventors: Wael Al-Qaq, Xiaobao Yu, Zhihang Zhang, Min Yi
-
Patent number: 11936481Abstract: A method embodiment includes implementing, by a base station (BS), a grant-free uplink transmission scheme. The grant-free uplink transmission scheme defines a first contention transmission unit (CTU) access region in a time-frequency domain, defines a plurality of CTUs, defines a default CTU mapping scheme by mapping at least some of the plurality of CTUs to the first CTU access region, and defines a default user equipment (UE) mapping scheme by defining rules for mapping a plurality of UEs to the plurality of CTUs.Type: GrantFiled: May 13, 2021Date of Patent: March 19, 2024Assignee: Huawei Technologies Co., Ltd.Inventors: Kelvin Kar Kin Au, Hosein Nikopour, Petar Djukic, Zhihang Yi, Alireza Bayesteh, Jianglei Ma, Mohammadhadi Baligh, Liqing Zhang
-
Patent number: 11212712Abstract: A network for facilitating wireless radio communication. The network includes a first access area, wherein the access area includes one or more transmission/receive points. At least one transmission/receive point includes a base station that supports wireless communication between a network and user equipment (UE), such as, a mobile device. The network includes a dedicated connection signature (DCS) that is assigned to a UE. The DCS provides for and is used by the UE to maintain active, unified access to the wireless network. More particularly, the DCS provides for active, contention free, and fast access for the UE to the network through transmission/receive points within the first access area, which is of significance to present and future UE centric virtual radio access networks having high densities of mobile and non-mobile users and with high populations of different types of traffic patterns and applications.Type: GrantFiled: February 4, 2019Date of Patent: December 28, 2021Assignee: Huawei Technologies Co., Ltd.Inventors: Liqing Zhang, Jianglei Ma, Kelvin Kar Kin Au, Zhihang Yi
-
Publication number: 20210266937Abstract: A method embodiment includes implementing, by a base station (BS), a grant-free uplink transmission scheme. The grant-free uplink transmission scheme defines a first contention transmission unit (CTU) access region in a time-frequency domain, defines a plurality of CTUs, defines a default CTU mapping scheme by mapping at least some of the plurality of CTUs to the first CTU access region, and defines a default user equipment (UE) mapping scheme by defining rules for mapping a plurality of UEs to the plurality of CTUs.Type: ApplicationFiled: May 13, 2021Publication date: August 26, 2021Inventors: Kelvin Kar Kin Au, Hosein Nikopour, Petar Djukic, Zhihang Yi, Alireza Bayesteh, Jianglei Ma, Mohammadhadi Baligh, Liqing Zhang
-
Publication number: 20210234658Abstract: A method of configuring a pilot signal includes defining a first pilot signal arrangement and defining a second pilot signal arrangement. Also, the method includes determining, by a communications controller, a first determined pilot signal arrangement in accordance with the first defined pilot signal arrangement, the second defined pilot signal arrangement, and a set of characteristics and transmitting, by the communications controller, the pilot signal having the first determined pilot signal arrangement.Type: ApplicationFiled: April 16, 2021Publication date: July 29, 2021Inventors: Zhihang Yi, Jianglei Ma, Liqing Zhang, Kelvin Kar Kin Au
-
Patent number: 11039435Abstract: Methods and devices are provided for communicating data in a wireless channel. In one example, a method includes adapting the transmission time interval (TTI) length of transport container for transmitting data in accordance with a criteria. The criteria may include (but is not limited to) a latency requirement of the data, a buffer size associated with the data, a mobility characteristic of a device that will receive the data. The lengths may be manipulated for a variety of reasons; such as for reducing overhead, satisfy quality of service (QoS) requirements, maximize network throughput, etc. In some embodiments, TTIs having different TTI lengths may be carried in a common radio frame. In other embodiments, the wireless channel may partitioned into multiple bands each of which carrying (exclusively or otherwise) TTIs having a certain TTI length.Type: GrantFiled: November 15, 2018Date of Patent: June 15, 2021Assignee: Huawei Technologies Co., Ltd.Inventors: Kelvin Kar Kin Au, Jianglei Ma, Liqing Zhang, Zhihang Yi, Hosein Nikopour
-
Patent number: 11019645Abstract: A method embodiment includes implementing, by a base station (BS), a grant-free uplink transmission scheme. The grant-free uplink transmission scheme defines a first contention transmission unit (CTU) access region in a time-frequency domain, defines a plurality of CTUs, defines a default CTU mapping scheme by mapping at least some of the plurality of CTUs to the first CTU access region, and defines a default user equipment (UE) mapping scheme by defining rules for mapping a plurality of UEs to the plurality of CTUs.Type: GrantFiled: April 27, 2018Date of Patent: May 25, 2021Assignee: Huawei Technologies Co., Ltd.Inventors: Kelvin Kar Kin Au, Hosein Nikopour, Petar Djukic, Zhihang Yi, Alireza Bayesteh, Jianglei Ma, Mohammadhadi Baligh, Liqing Zhang
-
Patent number: 11018829Abstract: A method of configuring a pilot signal includes defining a first pilot signal arrangement and defining a second pilot signal arrangement. Also, the method includes determining, by a communications controller, a first determined pilot signal arrangement in accordance with the first defined pilot signal arrangement, the second defined pilot signal arrangement, and a set of characteristics and transmitting, by the communications controller, the pilot signal having the first determined pilot signal arrangement.Type: GrantFiled: July 5, 2019Date of Patent: May 25, 2021Assignee: Huawei Technologies Co., Ltd.Inventors: Zhihang Yi, Jianglei Ma, Liqing Zhang, Kelvin Kar Kin Au
-
Patent number: 11013024Abstract: A method embodiment includes implementing, by a base station (BS), a grant-free uplink transmission scheme. The grant-free uplink transmission scheme defines a first contention transmission unit (CTU) access region in a time-frequency domain, defines a plurality of CTUs, defines a default CTU mapping scheme by mapping at least some of the plurality of CTUs to the first CTU access region, and defines a default user equipment (UE) mapping scheme by defining rules for mapping a plurality of UEs to the plurality of CTUs.Type: GrantFiled: April 27, 2018Date of Patent: May 18, 2021Assignee: Huawei Technologies Co., Ltd.Inventors: Kelvin Kar Kin Au, Hosein Nikopour, Petar Djukic, Zhihang Yi, Alireza Bayesteh, Jianglei Ma, Mohammadhadi Baligh, Liqing Zhang
-
Patent number: 10887898Abstract: A method embodiment includes implementing, by a base station (BS), a grant-free uplink transmission scheme. The grant-free uplink transmission scheme defines a first contention transmission unit (CTU) access region in a time-frequency domain, defines a plurality of CTUs, defines a default CTU mapping scheme by mapping at least some of the plurality of CTUs to the first CTU access region, and defines a default user equipment (UE) mapping scheme by defining rules for mapping a plurality of UEs to the plurality of CTUs.Type: GrantFiled: July 7, 2016Date of Patent: January 5, 2021Assignee: Huawei Technologies Co., Ltd.Inventors: Kelvin Kar Kin Au, Hosein Nikopour, Petar Djukic, Zhihang Yi, Alireza Bayesteh, Jianglei Ma, Mohammadhadi Baligh, Liqing Zhang
-
Patent number: 10887900Abstract: A method embodiment includes implementing, by a base station (BS), a grant-free uplink transmission scheme. The grant-free uplink transmission scheme defines a first contention transmission unit (CTU) access region in a time-frequency domain, defines a plurality of CTUs, defines a default CTU mapping scheme by mapping at least some of the plurality of CTUs to the first CTU access region, and defines a default user equipment (UE) mapping scheme by defining rules for mapping a plurality of UEs to the plurality of CTUs.Type: GrantFiled: April 27, 2018Date of Patent: January 5, 2021Assignee: Huawei Technologies Co., Ltd.Inventors: Kelvin Kar Kin Au, Hosein Nikopour, Petar Djukic, Zhihang Yi, Alireza Bayesteh, Jianglei Ma, Mohammadhadi Baligh, Liqing Zhang
-
Patent number: 10887899Abstract: A method embodiment includes implementing, by a base station (BS), a grant-free uplink transmission scheme. The grant-free uplink transmission scheme defines a first contention transmission unit (CTU) access region in a time-frequency domain, defines a plurality of CTUs, defines a default CTU mapping scheme by mapping at least some of the plurality of CTUs to the first CTU access region, and defines a default user equipment (UE) mapping scheme by defining rules for mapping a plurality of UEs to the plurality of CTUs.Type: GrantFiled: April 27, 2018Date of Patent: January 5, 2021Assignee: Huawei Technologies Co., Ltd.Inventors: Kelvin Kar Kin Au, Hosein Nikopour, Petar Djukic, Zhihang Yi, Alireza Bayesteh, Jianglei Ma, Mohammadhadi Baligh, Liqing Zhang
-
Patent number: 10826663Abstract: A method of configuring a pilot signal includes defining a first pilot signal arrangement and defining a second pilot signal arrangement. Also, the method includes determining, by a communications controller, a first determined pilot signal arrangement in accordance with the first defined pilot signal arrangement, the second defined pilot signal arrangement, and a set of characteristics and transmitting, by the communications controller, the pilot signal having the first determined pilot signal arrangement.Type: GrantFiled: March 13, 2013Date of Patent: November 3, 2020Assignee: Huawei Technologies Co., Ltd.Inventors: Zhihang Yi, Jianglei Ma, Liqing Zhang, Kelvin Kar Kin Au
-
Patent number: 10700838Abstract: Embodiments are provided herein for increasing low density signature space for multiplexed transmissions for a plurality of users. The embodiments include generating a virtual signature using a combination operation on a plurality of basic signatures. The generated virtual signatures are provisioned as basic resource units (BRUs) for transmissions for corresponding users. The combination operation is a row-wise or column-wise permutation for combining, in each of the virtual signatures, rows or columns of corresponding basic signatures. The rows or columns represent sequences of frequency bands at one time interval or sequences of allocated time intervals at one frequency band. Alternatively, the combination operation is intra-basic resource unit (BRU) hopping. The embodiments also include generating a plurality of BRU sets comprised of virtual signatures. Each of the BRU sets is provisioned for a corresponding user.Type: GrantFiled: April 7, 2017Date of Patent: June 30, 2020Assignee: Huawei Technologies Co., Ltd.Inventors: Alireza Bayesteh, Jianglei Ma, Hosein Nikopour, Zhihang Yi
-
Patent number: 10582494Abstract: Methods and devices are provided for communicating data in a wireless channel. In one example, a method includes adapting the transmission time interval (TTI) length of transport container for transmitting data in accordance with a criteria. The criteria may include (but is not limited to) a latency requirement of the data, a buffer size associated with the data, a mobility characteristic of a device that will receive the data. The TTI lengths may be manipulated for a variety of reasons, such as for reducing overhead, satisfy quality of service (QoS) requirements, maximize network throughput, etc. In some embodiments, TTIs having different TTI lengths may be carried in a common radio frame. In other embodiments, the wireless channel may partitioned into multiple bands each of which carrying (exclusively or otherwise) TTIs having a certain TTI length.Type: GrantFiled: July 12, 2017Date of Patent: March 3, 2020Assignee: Huawei Technologies Co., Ltd.Inventors: Kelvin Kar Kin Au, Jianglei Ma, Liqing Zhang, Zhihang Yi, Hosein Nikopour
-
Publication number: 20190334679Abstract: A method of configuring a pilot signal includes defining a first pilot signal arrangement and defining a second pilot signal arrangement. Also, the method includes determining, by a communications controller, a first determined pilot signal arrangement in accordance with the first defined pilot signal arrangement, the second defined pilot signal arrangement, and a set of characteristics and transmitting, by the communications controller, the pilot signal having the first determined pilot signal arrangement.Type: ApplicationFiled: July 5, 2019Publication date: October 31, 2019Inventors: Zhihang Yi, Jianglei Ma, Liqing Zhang, Kelvin Kar Kin Au
-
Patent number: 10374761Abstract: Disclosed herein are an active resource unit detector and a method of use thereof. An embodiment method of detecting active resource units among a plurality of potential resource units includes receiving an aggregate signal containing active pilots transmitted over the active resource units via random access transmissions. The active pilots are then detected and respectively associated with the active resource units according to a pilot-to-resource unit mapping.Type: GrantFiled: July 20, 2017Date of Patent: August 6, 2019Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Zhihang Yi, Hosein Nikopour, Alireza Bayesteh
-
Publication number: 20190182722Abstract: A network for facilitating wireless radio communication. The network includes a first access area, wherein the access area includes one or more transmission/receive points. At least one transmission/receive point includes a base station that supports wireless communication between a network and user equipment (UE), such as, a mobile device. The network includes a dedicated connection signature (DCS) that is assigned to a UE. The DCS provides for and is used by the UE to maintain active, unified access to the wireless network. More particularly, the DCS provides for active, contention free, and fast access for the UE to the network through transmission/receive points within the first access area, which is of significance to present and future UE centric virtual radio access networks having high densities of mobile and non-mobile users and with high populations of different types of traffic patterns and applications.Type: ApplicationFiled: February 4, 2019Publication date: June 13, 2019Inventors: Liqing Zhang, Jianglei Ma, Kelvin Kar Kin Au, Zhihang Yi
-
Patent number: 10285175Abstract: Methods and devices are provided for communicating data in a wireless channel. In one example, a method includes adapting the transmission time interval (TTI) length of transport container for transmitting data in accordance with a criteria. The criteria may include (but is not limited to) a latency requirement of the data, a buffer size associated with the data, a mobility characteristic of a device that will receive the data. The TTI lengths may be manipulated for a variety of reasons; such as for reducing overhead, satisfy quality of service (QoS) requirements, maximize network throughput, etc. In some embodiments, TTIs having different TTI lengths may be carried in a common radio frame. In other embodiments, the wireless channel may partitioned into multiple bands each of which carrying (exclusively or otherwise) TTIs having a certain TTI length.Type: GrantFiled: April 25, 2018Date of Patent: May 7, 2019Assignee: Huawei Technologies Co., Ltd.Inventors: Kelvin Kar Kin Au, Jianglei Ma, Liqing Zhang, Zhihang Yi, Hosein Nikopour
-
Publication number: 20190090236Abstract: Methods and devices are provided for communicating data in a wireless channel. In one example, a method includes adapting the transmission time interval (TTI) length of transport container for transmitting data in accordance with a criteria. The criteria may include (but is not limited to) a latency requirement of the data, a buffer size associated with the data, a mobility characteristic of a device that will receive the data. The lengths may be manipulated for a variety of reasons; such as for reducing overhead, satisfy quality of service (QoS) requirements, maximize network throughput, etc. In some embodiments, TTIs having different TTI lengths may be carried in a common radio frame. In other embodiments, the wireless channel may partitioned into multiple bands each of which carrying (exclusively or otherwise) TTIs having a certain TTI length.Type: ApplicationFiled: November 15, 2018Publication date: March 21, 2019Inventors: Kelvin Kar Kin Au, Jianglei Ma, Liqing Zhang, Zhihang Yi, Hosein Nikopour