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).

  • Patent number: 9119217
    Abstract: Interference that occurs during wireless communication may be managed by determination of a selected transmit waveform exhibiting a preferred channel quality. A method, apparatus and medium of communication determine a transmit waveform from among a plurality of allocated waveforms of an unplanned access point to an associated access terminal. The transmit waveform exhibiting a highest channel quality with an associated access terminal over others of the plurality of allocated waveforms is determined. Signals are transmitted according to the transmit waveform from the unplanned access point to the associated access terminal.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: August 25, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Peter J. Black, Mingxi Fan, Sarut Vanichpun, Mehmet Yavuz
  • Publication number: 20150236782
    Abstract: Techniques for managing operation on a communication medium shared between Radio Access Technologies (RATs) are disclosed. The management may comprise, for example, monitoring the medium for first RAT signaling in accordance with a first RAT; determining a utilization metric associated with utilization of the medium by the first RAT signaling; cycling operation in accordance with a second RAT between activated periods and deactivated periods of communication over the medium in accordance with a Time Division Multiple Access (TDM) communication pattern based on the utilization metric; and periodically disabling the cycling to provide an AOS period of activated communication over the medium for operation in accordance with the second RAT, with the AOS period being longer than an individual activated period of the TDM communication pattern. The management may also comprise, for example, techniques for enabling/disabling monitoring by an access terminal in accordance with the TDM communication pattern.
    Type: Application
    Filed: February 12, 2015
    Publication date: August 20, 2015
    Inventors: Tamer Adel KADOUS, Ahmed Kamel SADEK, Tingfang JI, Mingxi FAN
  • Publication number: 20150223077
    Abstract: To enable coexistence in unlicensed bands or other shared spectrum, operators that deploy cellular coverage in unlicensed bands can broadcast and receive over-the-air (OTA) signaling messages that carry coexistence information such that the operators can adjust one or more parameters used to provide the cellular coverage in the unlicensed bands and thereby enable inter-operator coexistence. For example, the operators may coordinate the particular OTA signaling configuration used to carry the coexistence information and thereby enable each operator to learn information that the other operator(s) are using and thereby reduce interference on time, frequency, and/or spatial resources that may be shared among the operators providing the cellular coverage in the unlicensed bands.
    Type: Application
    Filed: February 4, 2015
    Publication date: August 6, 2015
    Inventors: Mingxi FAN, Ahmed Kamel SADEK, Peter GAAL
  • Patent number: 9007942
    Abstract: A method of wireless communication includes receiving a wireless signal at a linear receiver, and iteratively computing an inverted covariance matrix in frequency domain, one channel code at a time. The method also includes computing receiver demodulation coefficients based on the inverted covariance matrix and the frequency domain channel estimate or time domain channel estimate. The method further includes deriving a transmitter symbol based on a received signal vector and the coefficients.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: April 14, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Wanlun Zhao, Fuyun Ling, Mingxi Fan, Jinghu Chen
  • Publication number: 20150063151
    Abstract: Systems and methods for managing communication in an unlicensed band of frequencies to supplement communication in a licensed band of frequencies in unlicensed spectrum are disclosed. The management may comprise, for example, monitoring utilization of resources currently available to a first Radio Access Technology (RAT) via at least one of a Primary Cell (PCell) operating in the licensed band, a set of one or more Secondary Cells (SCells) operating in the unlicensed band, or a combination thereof. Based on the utilization, a first SCell among the set of SCells may be configured or de-configured with respect to operation in the unlicensed band.
    Type: Application
    Filed: September 3, 2014
    Publication date: March 5, 2015
    Inventors: Ahmed Kamel SADEK, Yeliz TOKGOZ, Mehmet YAVUZ, Tamer Adel KADOUS, Mingxi FAN, Akula Aneesh REDDY
  • Publication number: 20150063150
    Abstract: Systems and methods for measurement reporting in unlicensed spectrum are disclosed. A user device may perform one or more signaling measurements in an unlicensed frequency band in accordance with a first Radio Access Technology (RAT) and send feedback information relating to the signaling measurements to a small cell base station, with the feedback information being sent in accordance with a second RAT. A message may be sent to the user device in accordance with the second RAT that configures the user device to perform the one or more signaling measurements in the unlicensed frequency band.
    Type: Application
    Filed: September 3, 2014
    Publication date: March 5, 2015
    Inventors: Ahmed Kamel SADEK, Yeliz TOKGOZ, Mehmet YAVUZ, Tamer Adel KADOUS, Mingxi FAN
  • Publication number: 20150063323
    Abstract: The disclosure is related to 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: Application
    Filed: September 3, 2014
    Publication date: March 5, 2015
    Inventors: Ahmed Kamel SADEK, Yeliz TOKGOZ, Mehmet YAVUZ, Tamer Adel KADOUS, Mingxi FAN, Nachiappan VALLIAPPAN
  • Publication number: 20150056933
    Abstract: Device antennas may be allocated such that a non-LTE module (e.g., GSM module or 1x module) shares the same antenna with an LTE DRx module. This may lead to degradation of a non-LTE voice service when the LTE DRx module performs LTE transmit antenna selection causing the non-LTE module to be switched to a different antenna during reception/transmission of voice slots, resulting in a loss of slots. Accordingly, a method, an apparatus, and a computer program product for controlling antenna switching are provided. The apparatus facilitates a first radio module to use a first antenna for performing a first operation, detects that a second radio module will attempt to use the first antenna during transmit antenna selection for performing a second operation, and determines whether to switch use of the first antenna from the first radio module to the second radio module based on a type of the first operation.
    Type: Application
    Filed: August 13, 2014
    Publication date: February 26, 2015
    Inventors: Hongbo YAN, Brian Clarke BANISTER, Daniel FILIPOVIC, Mingxi FAN
  • Patent number: 8948095
    Abstract: Interference that occurs during wireless communication may be managed by determination of a selected transmit waveform exhibiting a preferred channel quality. A method, apparatus and medium of communication determine a transmit waveform from among a plurality of allocated waveforms of an unplanned access point to an associated access terminal. The transmit waveform exhibiting a highest channel quality with an associated access terminal over others of the plurality of allocated waveforms is determined. Signals are transmitted according to the transmit waveform from the unplanned access point to the associated access terminal.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: February 3, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Peter J. Black, Mingxi Fan, Sarut Vanichpun, Mehmet Yavuz
  • Patent number: 8948147
    Abstract: A method and apparatus for facilitating downlink data transmission in a TD-SCDMA system is provided. The method may comprise receiving, from a Node B, a channel quality indicator (CQI) request, wherein the CQI request is not associated with a payload transmission.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: February 3, 2015
    Assignee: QUALCOMM Incorporated
    Inventors: Ruiming Zheng, Mingxi Fan, Jiming Guo
  • Publication number: 20140362744
    Abstract: TDD devices may transmit using multiple antennas. First and second antennas having first and second receive conditions may receive a communication. In an aspect, first and second transmit conditions for the first and second antennas may be determined based on the first and second receive conditions. In an aspect, the first and second transmit conditions may be compared to select the first or second antenna for transmissions. In an aspect, the first and second receive conditions may be compared to select the first or second antenna for transmissions. In an aspect, first and second transmission conditioning values, which may determine transmission powers, may be determined based on the first and second receive conditions. A first transmission chain, associated with an active RAT or carrier, and a second transmission chain, associated with an inactive RAT or carrier, may be activated to send transmissions from the first and second antennas.
    Type: Application
    Filed: October 23, 2013
    Publication date: December 11, 2014
    Inventors: Hongbo YAN, Insung Kang, Daniel Fred Filipovic, Michael Mingxi Fan, Ning He, Minkui Liu
  • Patent number: 8897188
    Abstract: Methods and apparatuses to power off a modem receiver or components of the receiver at a time prior to the end of the frame based on data in the frame being received and properly decoded before the end of the frame. In an aspect, the apparatuses and methods provide power saving in a wireless device, and include receiving data within a frame at a user equipment, determining whether all payload packet data has been correctly decoded prior to an end of the frame, and powering down a receiver component for a portion of a remainder of the frame in response to determining that all payload packet data has been correctly decoded and where a first time period to a next scheduled overhead bit transmission period of a slot in the frame is greater than a second time period corresponding to a warm-up period for the receiver component.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: November 25, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Peter John Black, Yin Huang, Mingxi Fan
  • Patent number: 8897256
    Abstract: A method and apparatus providing broadcast content over a unicast channel. The method and apparatus may be configured to determine whether content received using a broadcast type format is to be transmitted using a unicast type format, and to map the content to a unicast reservation upon a determination that the content is to be transmitted using the unicast type format.
    Type: Grant
    Filed: January 5, 2010
    Date of Patent: November 25, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: George Cherian, Jiming Guo, Peerapol Tinnakornsrisuphap, Rashid A. Attar, Bongyong Song, Mingxi Fan, Ravindra M. Patwardhan
  • Patent number: 8891436
    Abstract: A method and apparatus for effectively facilitating grant scheduling is provided. The method may comprise transmitting, by a user equipment (UE), a grant request, wherein the grant request includes a UE power headroom (UPH) value, and receiving, from a Node B, a scheduling grant, wherein the scheduling grant is derived from the transmitted UPH.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: November 18, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Jianqiang Zhang, Mingxi Fan, Jiming Guo, Bo Chen
  • Publication number: 20140285684
    Abstract: An apparatus, system, and method for examining authenticity of printed material and distinguishing between original printed material and counterfeit printed material is disclosed. In one embodiment, the method is performed by a mobile device. The mobile device recognizes a reference point on a page of the printed material, computes a color balance ratio for that reference point, and compares the computed color balance ratio to an expected value for original printed material. Based on the comparison between the computed color balance ratio and the expected value, a determination is made as to the authenticity of the printed material. If the printed material is authentic, the mobile device may provide supplementary, complementary and/or additional information and content, for example, information related to the page or chapter of the printed material. If the printed material is not authentic, the mobile device may inhibit the presentation of additional material.
    Type: Application
    Filed: October 12, 2011
    Publication date: September 25, 2014
    Inventors: William Y. Huang, Mingxi Fan, Xiaoyi Zhu, Ruowei Wang, Fan Ling
  • Patent number: 8839079
    Abstract: The present disclosure describes methods and apparatuses for improved transport block decoding in devices capable of wireless communication, which may include user equipment and network entities. For example, the present disclosure presents methods and apparatuses for decoding a code block from a plurality of code blocks corresponding to a transport block, obtaining a reliability indicator that identifies a reliability of the decoding of the code block, comparing the reliability indicator to a reliability threshold, and determining whether to decode a subsequent code block from the plurality of code blocks based on the comparing. Furthermore, these methods and apparatuses may include determining not to decode at least one subsequent code block of the transport block where the comparing indicates that the reliability indicator is less than the reliability threshold. As such, device power is not unnecessarily consumed by decoding likely superfluous code blocks.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: September 16, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Jinghu Chen, Wanlun Zhao, Michael Mingxi Fan, Fuyun Ling, Peter John Black, Krishna Kiran Mukkavilli, Weihong Jing, Jia Tang
  • Publication number: 20140247814
    Abstract: A method and apparatus in wireless communications is provided. The method may include determining an occurrence of a special burst time slot, and obtaining one or more control symbols located in a first data field and a second data field of the special burst time slot.
    Type: Application
    Filed: May 19, 2011
    Publication date: September 4, 2014
    Applicant: QUALCOMM INCORPORATED
    Inventors: Jianqiang Zhang, Jiming Guo, Mingxi Fan
  • Publication number: 20140233416
    Abstract: Interference that occurs during wireless communication may be managed by determination of a selected transmit waveform exhibiting a preferred channel quality. A method, apparatus and medium of communication determine a transmit waveform from among a plurality of allocated waveforms of an unplanned access point to an associated access terminal. The transmit waveform exhibiting a highest channel quality with an associated access terminal over others of the plurality of allocated waveforms is determined. Signals are transmitted according to the transmit waveform from the unplanned access point to the associated access terminal.
    Type: Application
    Filed: April 28, 2014
    Publication date: August 21, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Peter J. Black, Mingxi Fan, Sarut Vanichpun, Mehmet Yavuz
  • Patent number: 8744018
    Abstract: Certain embodiments provide methods that may allow for improvements in performance and power consumption by terminating the turbo decoding process early when one of at least two test criterion is satisfied in communications systems, including UMTS, WCDMA, and TD-DCMA.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: June 3, 2014
    Assignee: QUALCOMM Incorporated
    Inventors: Jinghu Chen, Wanlun Zhao, Mingxi Fan, Fuyun Ling, Peter John Black
  • Publication number: 20140056239
    Abstract: Certain aspects of the present disclosure propose techniques for power control for high-efficiency scheduling for Time Division Synchronous Code Division Multiple Access (TD-SCDMA) High Speed Uplink Packet Access (HSUPA). The basic principle of this power control for a scheduled Enhanced Dedicated Channel (E-DCH) Physical Uplink Channel (E-PUCH) is that all information for a transport block size (TBS) decision is made available at a user equipment (UE). Certain aspects provide a method for wireless communications. The method generally includes receiving, from a UE, an uplink signal, determining a reference uplink power level based on a filtered interference power of the received signal, and transmitting an indication of the reference uplink power level to the UE.
    Type: Application
    Filed: December 1, 2010
    Publication date: February 27, 2014
    Applicant: QUALCOMM Incorporated
    Inventors: Jainqiang Zhang, Jiming Guo, Mingxi Fan, Bo Chen