Patents by Inventor Mingxi Fan
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).
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Patent number: 11032841Abstract: Aspects of the disclosure relate to an active set management scheme implemented by a scheduler in a multiple-input multiple-output (MIMO) network that minimizes capacity and interference issues. For example, the scheduler can initially group each base station into a separate active set. The scheduler can then analyze each active set to determine whether the active set is a good or bad based on the level of interference in and the number of MIMO transmit dimensions available in the respective active set. If the scheduler determines that an active set is a bad, the scheduler can determine a set of metrics that each represent a capacity and link quality that would result if the bad active set is combined with another active set. Based on the set of metrics, the scheduler can combine the bad active set with another active set, and repeat this process until no bad active sets remain.Type: GrantFiled: April 26, 2019Date of Patent: June 8, 2021Assignee: XCOM Labs, Inc.Inventors: Tamer Adel Kadous, Michael Mingxi Fan
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Patent number: 10985813Abstract: Aspects of the disclosure relate to a selection scheme implemented by a scheduler in a multiple-input multiple-output (MIMO) network to identify which users to schedule simultaneously during the same time slot. For downlink communications and a particular frequency wholeband or sub-band, the scheduler can determine downlink channel information using uplink channel information for channels between base stations and UEs. The scheduler can then determine a strength of the channels using the downlink channel information, order the UEs using a fairness metric based on the channel strengths, and compute one or more QR decompositions to identify whether a spatial dimension of a UE is roughly or approximately orthogonal to spatial dimension(s) of other UEs selected to be served during a time slot being scheduled. If the spatial dimensions are roughly or approximately orthogonal, the scheduler selects the UE to be served at the same time as other UEs already selected.Type: GrantFiled: June 12, 2020Date of Patent: April 20, 2021Assignee: XCOM Labs, Inc.Inventors: Wanlun Zhao, Jinghu Chen, Tamer Adel Kadous, Michael Mingxi Fan, Peter John Black
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Patent number: 10979203Abstract: Disclosed are systems and methods for selecting an operating channel for a cellular network to reduce interference to a wireless local area network (WLAN) operated by a small cell comprising a WLAN access point and a cellular network modem. The small cell performs a channel scan of available channels, determines whether or not there is a clean channel to be the operating channel for the cellular network based on the channel scan, wherein a clean channel comprises a channel that interferes with the WLAN less than a WLAN interference threshold, and selects the clean channel as the operating channel for the cellular network based on the clean channel being available or turns off the cellular network based on no clean channel being available.Type: GrantFiled: September 3, 2014Date of Patent: April 13, 2021Assignee: QUALCOMM IncorporatedInventors: Ahmed Kamel Sadek, Yeliz Tokgoz, Mehmet Yavuz, Tamer Adel Kadous, Mingxi Fan, Nachiappan Valliappan
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Patent number: 10939440Abstract: 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: GrantFiled: November 26, 2019Date of Patent: March 2, 2021Assignee: Qualcomm IncorporatedInventors: Xiaoxia Zhang, Juan Montojo, Taesang Yoo, Siddhartha Mallik, Aleksandar Damnjanovic, Michael Mingxi Fan
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Publication number: 20210014085Abstract: Aspects of this disclosure relate to a time-division duplex (TDD) multiple-input multiple-output (MIMO) system that includes a plurality of nodes. The plurality of nodes collectively includes antennas divided into groups. Reference signals can be transmitted from each group of antennas to one or more other groups of antennas during respective time slots. Channel estimates can be generated based on the received reference signals. The channel estimates can be jointly processed to generate calibration coefficients. Each calibration coefficient can represent a ratio associated with a transmit coefficient and a receive coefficient. Example algorithms for the joint processing are disclosed.Type: ApplicationFiled: July 12, 2019Publication date: January 14, 2021Inventors: Jinghu Chen, Wanlun Zhao, Tamer Adel Kadous, Peter John Black, Michael Mingxi Fan
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Publication number: 20210006299Abstract: Aspects of the disclosure relate to an active set management scheme implemented by a scheduler in a multiple-input multiple-output (MIMO) network that minimizes capacity and interference issues. For example, the scheduler can initially group each base station into a separate active set. The scheduler can then analyze each active set to determine whether the active set is a good or bad based on the level of interference in and the number of MIMO receive dimensions available in the respective active set. If the scheduler determines that an active set is a bad, the scheduler can determine a set of metrics that each represent a capacity and link quality that would result if the bad active set is combined with another active set. Based on the set of metrics, the scheduler can combine the bad active set with another active set, and repeat this process until no bad active sets remain.Type: ApplicationFiled: July 21, 2020Publication date: January 7, 2021Inventors: Tamer Adel Kadous, Michael Mingxi Fan
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Publication number: 20200403645Abstract: Aspects of this disclosure relate to a user equipment that includes a transceiver that can operate in at least a traffic mode and a virtual network element mode. In the traffic mode, the transceiver can process a received downlink radio frequency signal and transmit an uplink radio frequency signal. The transceiver can couple a receive path to a transmit path in an analog domain in the virtual network element mode. In the virtual network element mode, the transceiver can, for example, perform functions of a network repeater or a network transmit-receive point.Type: ApplicationFiled: July 16, 2020Publication date: December 24, 2020Inventors: Paul Eric Jacobs, Peter John Black, Matthew Stuart Grob, Michael Mingxi Fan, Tamer Adel Kadous
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Publication number: 20200389212Abstract: Aspects of this disclosure relate to pair of wireless communication devices wirelessly communicating with a network system in a coordinated manner. A secondary wireless communication device can wirelessly communicate part of a multiple-input multiple-output (MIMO) transmission associated with a primary wireless communication device (i) with the primary wireless communication device via the peer-to-peer link and (ii) with the network system via a cellular link. The secondary wireless communication device can enable the primary wireless communication device to communicate with the network system at a higher data rate and/or at a higher MIMO rank.Type: ApplicationFiled: July 10, 2020Publication date: December 10, 2020Inventors: Peter John Black, Michael Mingxi Fan, Tamer Adel Kadous, Matthew Stuart Grob
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Publication number: 20200382169Abstract: Aspects of the disclosure relate to a selection scheme implemented by a scheduler in a multiple-input multiple-output (MIMO) network to identify which users to schedule simultaneously during the same time slot. For downlink communications and a particular frequency wholeband or sub-band, the scheduler can determine downlink channel information using uplink channel information for channels between base stations and UEs. The scheduler can then determine a strength of the channels using the downlink channel information, order the UEs using a fairness metric based on the channel strengths, and compute one or more QR decompositions to identify whether a spatial dimension of a UE is roughly or approximately orthogonal to spatial dimension(s) of other UEs selected to be served during a time slot being scheduled. If the spatial dimensions are roughly or approximately orthogonal, the scheduler selects the UE to be served at the same time as other UEs already selected.Type: ApplicationFiled: June 12, 2020Publication date: December 3, 2020Inventors: Wanlun Zhao, Jinghu Chen, Tamer Adel Kadous, Michael Mingxi Fan, Peter John Black
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Patent number: 10841870Abstract: 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: GrantFiled: October 23, 2019Date of Patent: November 17, 2020Assignee: QUALCOMM IncorporatedInventors: Junyi Li, Aleksandar Damnjanovic, Michael Mingxi Fan, Yongbin Wei, Tamer Kadous, Ahmed Sadek
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Publication number: 20200350960Abstract: Aspects of this disclosure relate to user equipment assisted multiple-input multiple-output (MIMO) downlink configuration. Features are described for a user equipment determination of a desired transmission mode and/or active set of serving nodes for wireless communication service(s). The user equipment may submit a request for the desired mode and/or nodes to a network controller such as a baseband unit. The user equipment may subsequently receive a configuration for the requested wireless communication service(s).Type: ApplicationFiled: May 15, 2020Publication date: November 5, 2020Inventors: Peter John Black, Matthew Stuart Grob, Michael Mingxi Fan, Tamer Adel Kadous
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Publication number: 20200344790Abstract: Aspects of the disclosure relate to an active set management scheme implemented by a scheduler in a multiple-input multiple-output (MIMO) network that minimizes capacity and interference issues. For example, the scheduler can initially group each base station into a separate active set. The scheduler can then analyze each active set to determine whether the active set is a good or bad based on the level of interference in and the number of MIMO transmit dimensions available in the respective active set. If the scheduler determines that an active set is a bad, the scheduler can determine a set of metrics that each represent a capacity and link quality that would result if the bad active set is combined with another active set. Based on the set of metrics, the scheduler can combine the bad active set with another active set, and repeat this process until no bad active sets remain.Type: ApplicationFiled: April 26, 2019Publication date: October 29, 2020Inventors: Tamer Adel Kadous, Michael Mingxi Fan
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Patent number: 10812216Abstract: Aspects of this disclosure relate to cooperative multiple-input multiple-output (MIMO) downlink scheduling. Features are described for scheduling transmissions within a MIMO network to efficiently allocate resources considering the needs and/or characteristics of devices served by the network. The downlink mode or active set may be scheduled based at least in part on the channel state information and additional network system information detected by or otherwise available to the scheduling device.Type: GrantFiled: November 5, 2018Date of Patent: October 20, 2020Assignee: XCOM Labs, Inc.Inventors: Peter John Black, Matthew Stuart Grob, Michael Mingxi Fan, Tamer Adel Kadous
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Patent number: 10790861Abstract: Techniques to increase the capacity of a W-CDMA wireless communications system. In an exemplary embodiment, early termination of one or more transport channels on a W-CDMA wireless communications link is provided. In particular, early decoding is performed on slots as they are received over the air, and techniques are described for signaling acknowledgment messages (ACK's) for one or more transport channels correctly decoded to terminate the transmission of those transport channels. The techniques may be applied to the transmission of voice signals using the adaptive multi-rate (AMR) codec. Further exemplary embodiments describe aspects to reduce the transmission power and rate of power control commands sent over the air, as well as aspects for applying tail-biting convolutional codes in the system.Type: GrantFiled: May 11, 2017Date of Patent: September 29, 2020Assignee: QUALCOMM IncorporatedInventors: Yisheng Xue, Mingxi Fan, Jiye Liang
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Publication number: 20200288352Abstract: Aspects of this disclosure relate to local breakout. A network node can receive remote downlink traffic from a remote network, receive local downlink traffic from a local resource, aggregate at least the remote downlink traffic with the local downlink traffic based on one or more filters stored in memory of the network node, and route the aggregated downlink traffic to a wireless communication device. The remote downlink traffic can be associated with a first application of the wireless communication device, and the local downlink traffic can be associated with a second application of the wireless communication device. The network node can be a local gateway in certain embodiments. The network node can steer uplink traffic steering by filtering uplink traffic associated with the wireless communication device into local uplink traffic and remote uplink traffic based on at least one filter for filtering traffic stored in the memory.Type: ApplicationFiled: March 5, 2020Publication date: September 10, 2020Inventors: Yuming Hu, Michael Mingxi Fan
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Patent number: 10757702Abstract: Certain aspects of the present disclosure relate to techniques for managing resources for cooperative uplink transmission. A base station may determine different groups for a plurality of user equipments (UEs) participating in cooperative uplink transmission, and transmit mode configurations indicating whether or not UEs in each group are configured to transmit data as a data source or to relay data received from another UE configured to transmit data as a data source. A UE may participate, with one or more other UEs, in cooperative uplink transmission to the base station, wherein each UE belongs to a group. The UE may determine, for a transmission time interval (TTI), at least one operation to perform for the cooperative uplink transmission based, at least in part, on a group number of a group to which the UE belongs and an index of the TTI.Type: GrantFiled: July 3, 2015Date of Patent: August 25, 2020Assignee: QUALCOMM IncorporatedInventors: Neng Wang, Mingxi Fan, Naga Bhushan
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Patent number: 10756782Abstract: Aspects of the disclosure relate to an active set management scheme implemented by a scheduler in a multiple-input multiple-output (MIMO) network that minimizes capacity and interference issues. For example, the scheduler can initially group each base station into a separate active set. The scheduler can then analyze each active set to determine whether the active set is a good or bad based on the level of interference in and the number of MIMO receive dimensions available in the respective active set. If the scheduler determines that an active set is a bad, the scheduler can determine a set of metrics that each represent a capacity and link quality that would result if the bad active set is combined with another active set. Based on the set of metrics, the scheduler can combine the bad active set with another active set, and repeat this process until no bad active sets remain.Type: GrantFiled: April 26, 2019Date of Patent: August 25, 2020Assignee: XCOM Labs, Inc.Inventors: Tamer Adel Kadous, Michael Mingxi Fan
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Patent number: 10756795Abstract: Aspects of this disclosure relate to pair of wireless communication devices wirelessly communicating with a network system in a coordinated manner. A secondary wireless communication device can wirelessly communicate part of a multiple-input multiple-output (MIMO) transmission associated with a primary wireless communication device (i) with the primary wireless communication device via the peer-to-peer link and (ii) with the network system via a cellular link. The secondary wireless communication device can enable the primary wireless communication device to communicate with the network system at a higher data rate and/or at a higher MIMO rank.Type: GrantFiled: December 18, 2018Date of Patent: August 25, 2020Assignee: XCOM Labs, Inc.Inventors: Peter John Black, Michael Mingxi Fan, Tamer Adel Kadous, Matthew Stuart Grob
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Patent number: 10756767Abstract: Aspects of this disclosure relate to a user equipment that includes a transceiver that can operate in at least a traffic mode and a virtual network element mode. In the traffic mode, the transceiver can process a received downlink radio frequency signal and transmit an uplink radio frequency signal. The transceiver can couple a receive path to a transmit path in an analog domain in the virtual network element mode. In the virtual network element mode, the transceiver can, for example, perform functions of a network repeater or a network transmit-receive point.Type: GrantFiled: February 5, 2019Date of Patent: August 25, 2020Assignee: XCOM Labs, Inc.Inventors: Paul Eric Jacobs, Peter John Black, Matthew Stuart Grob, Michael Mingxi Fan, Tamer Adel Kadous
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Patent number: 10756860Abstract: Aspects of this disclosure relate to distributed multiple-input multiple-output (MIMO) downlink configuration. Features are described for a network controller (e.g., baseband unit) to receive one or more requests including a desired transmission mode and/or active set of serving nodes for wireless communication service(s) for user equipment. The baseband unit may determine an optimal configuration in consideration of the desired parameters along with other network information. The network controller may then transmit one or more configuration messages via the network to optimally allocate resources distributed within the network.Type: GrantFiled: November 5, 2018Date of Patent: August 25, 2020Assignee: XCOM Labs, Inc.Inventors: Peter John Black, Matthew Stuart Grob, Michael Mingxi Fan, Tamer Adel Kadous