Patents by Inventor Michael Mingxi Fan

Michael Mingxi Fan 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).

  • Publication number: 20200022029
    Abstract: A medium reservation framework is disclosed for coexistence of coordinated and uncoordinated wireless networks in licensed spectrum and shared spectrum. The proposed medium reservation framework organically takes into account operating regimes with different numbers of Tx/Rx antennas per node, provides flexibility in trading off medium contention aggressiveness and power saving, leverages the inherent synchronization nature of NR, and covers both coordinated and uncoordinated operation scenarios. Various aspects of the medium reservation framework may be centered on one or more combinations of some basic building blocks, such as an operation grid, synchronization signals, and reservation messages, such as a reservation request signal (RRQ) and one or more a reservation response signals (RRS).
    Type: Application
    Filed: September 26, 2019
    Publication date: January 16, 2020
    Inventors: Ahmed Kamel Sadek, Yisheng Xue, Siddhartha Mallik, Tamer Kadous, Xiaoxia Zhang, Taesang Yoo, Michael Mingxi Fan, Aleksandar Damnjanovic, Yongbin Wei, Jing Sun
  • Patent number: 10536944
    Abstract: Techniques are described for wireless communication at a wireless device. One method includes identifying a priority of the wireless device for a transmission interval of a radio frequency spectrum band shared by a plurality of network operating entities; identifying an absence of a predetermined transmission type in each of a number of clear channel assessment (CCA) slots of the transmission interval, in which each of the number of CCA slots is associated with a higher priority than the identified priority of the wireless device; and communicating over the radio frequency spectrum band based at least in part on the identified absence of the predetermined transmission type in each of the number of CCA slots associated with the higher priority than the priority of the wireless device.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: January 14, 2020
    Assignee: Qualcomm Incorporated
    Inventors: Xiaoxia Zhang, Juan Montojo, Taesang Yoo, Siddhartha Mallik, Aleksandar Damnjanovic, Michael Mingxi Fan
  • Patent number: 10484935
    Abstract: Wireless communication systems and methods related to service advertising and discovery with dynamic spectrum use are provided. A user equipment (UE) receives, from a first wireless communication device, a network information signal in a spectrum. The UE receives, from a second wireless communication device, a service advertising signal based on at least a synchronization to the network information signal. The service advertising signal indicates an availability of a service. The UE transmits, to the second wireless communication device, a request for the service. The first wireless communication device and the second wireless communication device are associated with different operating entities of the spectrum.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: November 19, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Junyi Li, Aleksandar Damnjanovic, Michael Mingxi Fan, Yongbin Wei, Tamer Kadous, Ahmed Sadek
  • Patent number: 10455457
    Abstract: A medium reservation framework is disclosed for coexistence of coordinated and uncoordinated wireless networks in licensed spectrum and shared spectrum. The proposed medium reservation framework organically takes into account operating regimes with different numbers of Tx/Rx antennas per node, provides flexibility in trading off medium contention aggressiveness and power saving, leverages the inherent synchronization nature of NR, and covers both coordinated and uncoordinated operation scenarios. Various aspects of the medium reservation framework may be centered on one or more combinations of some basic building blocks, such as an operation grid, synchronization signals, and reservation messages, such as a reservation request signal (RRQ) and one or more a reservation response signals (RRS).
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: October 22, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Ahmed Kamel Sadek, Yisheng Xue, Siddhartha Mallik, Tamer Kadous, Xiaoxia Zhang, Taesang Yoo, Michael Mingxi Fan, Aleksandar Damnjanovic, Yongbin Wei, Jing Sun
  • Patent number: 10448257
    Abstract: Co-existence mechanisms for shared spectrum and unlicensed spectrum are disclosed. Several base stations, from one or more network operators, share a communication spectrum in a base non-contention procedure state. When a given base station determines that communications with its served user equipments (UEs) suffers a diminished quality, the base station transmits a diminished quality indicator in response. Subsequent communications with the served UEs over the shared spectrum would then occur using a contention-based procedure state triggered by the diminished quality indicator. The triggering of the contention-based procedure may be made by the base station on either sending the diminished quality indicator or receiving a similar indicator from a neighbor base station, or by an indication from a central controller making a determination to initiate contention-based procedures based on flags received from the neighboring base stations.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: October 15, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Chirag Sureshbhai Patel, Michael Mingxi Fan
  • Patent number: 10440731
    Abstract: A connection may be established between a base station and a user equipment (UE) using a radio frequency shared by multiple network operating entities. Resources (e.g., a frame) may be divided into exclusive, prioritized, and opportunistic sub-intervals for a given network operating entity coexisting within the shared radio frequency spectrum. Additionally, a set of low latency sub-intervals (e.g., reserved resources) may be designated for use by the network operating entity for mission critical (MiCr) and/or autonomous uplink transmissions. The network operating entity may indicate timing information for low latency sub-intervals during a sub-interval for exclusive use by the network operating entity. The UE may then transmit MiCr and/or autonomous uplink messages using the low latency intervals without performing a medium sensing procedure. In some cases, the sub-intervals for MiCr and autonomous uplink transmissions may be for exclusive use by the network operating entity.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: October 8, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Michael Mingxi Fan, Juan Montojo, Naga Bhushan, Aleksandar Damnjanovic, Ahmed Kamel Sadek
  • Patent number: 10432272
    Abstract: Aspects of this disclosure relate to variable multiple-input multiple-output (MIMO) downlink user equipment. Features are described for dynamically adjusting an operational state of a user equipment to obtain network services (e.g., downlink data traffic) according to different transmission modes. The user equipment may provide reports to a network controller indicating characteristics of the user equipment. The characteristics may indicate service level, quality, or type needed for user equipment operations. The user equipment may receive configuration information to adjust wireless capabilities to best meet the identified needs of the user equipment and the MIMO network.
    Type: Grant
    Filed: November 5, 2018
    Date of Patent: October 1, 2019
    Assignee: XCOM Labs, Inc.
    Inventors: Peter John Black, Matthew Stuart Grob, Michael Mingxi Fan, Tamer Adel Kadous
  • Patent number: 10244399
    Abstract: Aspects of the disclosure relate to wireless communication systems configured to share a shared spectrum with one or more other systems (e.g., other operator networks utilizing the same radio access technology, and/or other networks utilizing different radio access technologies). Coexistence between the different systems on the shared spectrum may be provided by utilizing a technology-neutral signature waveform such as a signature sequence or discovery signal. The signature sequence may be used for resource reservation, scheduling, and coordination among disparate systems operating on a shared spectrum. Other aspects, embodiments, and features are also claimed and described.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: March 26, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Aleksandar Damnjanovic, Ahmed Sadek, Siddhartha Mallik, Juan Montojo, Michael Mingxi Fan
  • Publication number: 20180359685
    Abstract: Wireless communication systems and methods related to service advertising and discovery with dynamic spectrum use are provided. A user equipment (UE) receives, from a first wireless communication device, a network information signal in a spectrum. The UE receives, from a second wireless communication device, a service advertising signal based on at least a synchronization to the network information signal. The service advertising signal indicates an availability of a service. The UE transmits, to the second wireless communication device, a request for the service. The first wireless communication device and the second wireless communication device are associated with different operating entities of the spectrum.
    Type: Application
    Filed: April 11, 2018
    Publication date: December 13, 2018
    Inventors: Junyi Li, Aleksandar Damnjanovic, Michael Mingxi Fan, Yongbin Wei, Tamer Kadous, Ahmed Sadek
  • Publication number: 20180343588
    Abstract: A medium reservation framework is disclosed for coexistence of coordinated and uncoordinated wireless networks in licensed spectrum and shared spectrum. The proposed medium reservation framework organically takes into account operating regimes with different numbers of Tx/Rx antennas per node, provides flexibility in trading off medium contention aggressiveness and power saving, leverages the inherent synchronization nature of NR, and covers both coordinated and uncoordinated operation scenarios. Various aspects of the medium reservation framework may be centered on one or more combinations of some basic building blocks, such as an operation grid, synchronization signals, and reservation messages, such as a reservation request signal (RRQ) and one or more a reservation response signals (RRS).
    Type: Application
    Filed: May 21, 2018
    Publication date: November 29, 2018
    Inventors: Ahmed Kamel Sadek, Yisheng Xue, Siddhartha Mallik, Tamer Kadous, Xiaoxia Zhang, Taesang Yoo, Michael Mingxi Fan, Aleksandar Damnjanovic, Yongbin Wei, Jing Sun
  • Publication number: 20180317093
    Abstract: Wireless communication systems and methods related to spectrum use negotiations are provided. A first wireless communication device transmits, to a controlling entity of a spectrum, a spectrum use request for a local operator to use the spectrum for a time period. The first wireless communication device receives, from the controlling entity, a spectrum use grant indicating that the local operator is promoted from a first priority to a second priority for accessing the spectrum during the time period. The first wireless communication device communicates with a second wireless communication device in the spectrum during the time period based on the second priority, where at least the first wireless communication device or the second wireless communication device is associated with the local operator.
    Type: Application
    Filed: November 1, 2017
    Publication date: November 1, 2018
    Inventors: Junyi LI, Aleksandar DAMNJANOVIC, Michael Mingxi FAN, Yongbin WEI, Tamer KADOUS, Ahmed SADEK
  • Publication number: 20180242163
    Abstract: Co-existence mechanisms for shared spectrum and unlicensed spectrum are disclosed. Several base stations, from one or more network operators, share a communication spectrum in a base non-contention procedure state. When a given base station determines that communications with its served user equipments (UEs) suffers a diminished quality, the base station transmits a diminished quality indicator in response. Subsequent communications with the served UEs over the shared spectrum would then occur using a contention-based procedure state triggered by the diminished quality indicator. The triggering of the contention-based procedure may be made by the base station on either sending the diminished quality indicator or receiving a similar indicator from a neighbor base station, or by an indication from a central controller making a determination to initiate contention-based procedures based on flags received from the neighboring base stations.
    Type: Application
    Filed: August 28, 2017
    Publication date: August 23, 2018
    Inventors: Chirag Sureshbhai Patel, Michael Mingxi Fan
  • Publication number: 20180139782
    Abstract: An opportunistic asynchronous operation for coordinated new radio (NR) shared spectrum (NR-SS) operations is discussed. In a wireless network having at least one contention-based shared channel in which communications are configured having one or more control intervals time division multiplexed with one or more data intervals for transmission opportunities, a base station receives data for communication at a time during a current data interval on a contention-based shared channel. The base station will review its received signals on the contention-based shared channel during the previous control interval located immediately prior to the current data interval. If none of the received signals indicate a contention-resolution of the contention-based shared channel, the base station may begin an attempted transmission by performing an abbreviated clear channel assessment (CCA). If the CCA is detected as clear, the data may be transmitted.
    Type: Application
    Filed: November 9, 2017
    Publication date: May 17, 2018
    Inventors: Ahmed Sadek, Aleksandar Damnjanovic, Yisheng Xue, Michael Mingxi Fan
  • Publication number: 20180115907
    Abstract: Techniques for spectrum sharing among operators are provided. A base station (BS) licensed to a first operator monitors, while operating on a first carrier frequency assigned to the first operator, a reservation period on a second carrier frequency assigned to a second operator that shares spectrum with the first operator. The BS determines, based on the monitoring, availability of the second carrier frequency for use by the BS during at least one subsequent data period. The BS determines whether to attempt to reserve access on the second carrier frequency for use during the at least one subsequent data period based on the determined availability.
    Type: Application
    Filed: August 9, 2017
    Publication date: April 26, 2018
    Inventors: Aleksandar DAMNJANOVIC, Juan MONTOJO, Yisheng XUE, Michael Mingxi FAN, Xiaoxia ZHANG, Taesang YOO
  • Publication number: 20180109957
    Abstract: The described techniques provide for partitioning resources to coordinate wireless communications between one or more network operating entities within a shared spectrum. Partitioning resources may include assigning certain types of communication for each network operating entity to certain time intervals within a larger time frame. For example, a network operating entity may be assigned time intervals for exclusive communication, time intervals for prioritized communication with respect to other network operating entities, and time intervals for opportunistic communication.
    Type: Application
    Filed: March 30, 2017
    Publication date: April 19, 2018
    Inventors: Michael Mingxi Fan, Juan Montojo, Naga Bhushan, Aleksandar Damnjanovic, Ahmed Kamel Sadek
  • Publication number: 20180110063
    Abstract: A connection may be established between a base station and a user equipment (UE) using a radio frequency shared by multiple network operating entities. Resources (e.g., a frame) may be divided into exclusive, prioritized, and opportunistic sub-intervals for a given network operating entity coexisting within the shared radio frequency spectrum. Additionally, a set of low latency sub-intervals (e.g., reserved resources) may be designated for use by the network operating entity for mission critical (MiCr) and/or autonomous uplink transmissions. The network operating entity may indicate timing information for low latency sub-intervals during a sub-interval for exclusive use by the network operating entity. The UE may then transmit MiCr and/or autonomous uplink messages using the low latency intervals without performing a medium sensing procedure. In some cases, the sub-intervals for MiCr and autonomous uplink transmissions may be for exclusive use by the network operating entity.
    Type: Application
    Filed: March 30, 2017
    Publication date: April 19, 2018
    Inventors: Michael Mingxi Fan, Juan Montojo, Naga Bhushan, Aleksandar Damnjanovic, Ahmed Kamel Sadek
  • Publication number: 20180110022
    Abstract: Methods, systems, and devices for wireless communication are described that provide for discovery of resources in a wireless communications system. The wireless communications system supports operations for multiple network operating entities that share a radio frequency spectrum. To discover and perform synchronization with the wireless communications system, a common preamble may be transmitted by nodes associated with multiple network operating entities. The common preamble may include information common to each of the multiple network operating entities which may be used by a device to identify neighboring wireless nodes, available network operating entities, or sub-intervals designated for prioritized or opportunistic use by one or more network operating entities.
    Type: Application
    Filed: March 30, 2017
    Publication date: April 19, 2018
    Inventors: Michael Mingxi Fan, Juan Montojo, Naga Bhushan, Aleksandar Damnjanovic, Ahmed Kamel Sadek
  • Publication number: 20180103472
    Abstract: Techniques are described for wireless communication at a wireless device. One method includes identifying a priority of the wireless device for a transmission interval of a radio frequency spectrum band shared by a plurality of network operating entities; identifying an absence of a predetermined transmission type in each of a number of clear channel assessment (CCA) slots of the transmission interval, in which each of the number of CCA slots is associated with a higher priority than the identified priority of the wireless device; and communicating over the radio frequency spectrum band based at least in part on the identified absence of the predetermined transmission type in each of the number of CCA slots associated with the higher priority than the priority of the wireless device.
    Type: Application
    Filed: April 12, 2017
    Publication date: April 12, 2018
    Inventors: Xiaoxia Zhang, Juan Montojo, Taesang Yoo, Siddhartha Mallik, Aleksandar Damnjanovic, Michael Mingxi Fan
  • Publication number: 20180098225
    Abstract: Aspects of the disclosure relate to wireless communication systems configured to share a shared spectrum with one or more other systems (e.g., other operator networks utilizing the same radio access technology, and/or other networks utilizing different radio access technologies). Coexistence between the different systems on the shared spectrum may be provided by utilizing a technology-neutral signature waveform such as a signature sequence or discovery signal. The signature sequence may be used for resource reservation, scheduling, and coordination among disparate systems operating on a shared spectrum. Other aspects, embodiments, and features are also claimed and described.
    Type: Application
    Filed: July 6, 2017
    Publication date: April 5, 2018
    Inventors: Aleksandar Damnjanovic, Ahmed Sadek, Siddhartha Mallik, Juan Montojo, Michael Mingxi Fan
  • Publication number: 20180063799
    Abstract: Methods, systems, and devices for wireless communication are described. A wireless node may receive stress beacons on a channel. Each stress beacon may include an indication of an allowable interference level for a corresponding wireless node that transmitted the stress beacon on the channel. The wireless node may update a backoff window for the channel based on the allowable interference levels indicated in the stress beacons.
    Type: Application
    Filed: March 15, 2017
    Publication date: March 1, 2018
    Inventors: Ahmed Kamel Sadek, Naga Bhushan, Peter Black, Michael Mingxi Fan, Yongbin Wei