Inventor

Hao Xu

Inventor

San Diego, CA, US

Overview

2000–2020

Patent span

Electricity

Primary field (CPC H)

Patents· 746 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H04Wprimary

H04WWireless communication networks34%

H04LTransmission of digital information, e.g. telegraphic communication32%

H04BTransmission12%

H04JMultiplex communication5%

Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use3%

G06FElectric digital data processing2%

H01QAntennas, i.e. radio aerials2%

Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications1%

G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes1%

G01SRadio direction-finding1%

PatentTitleYear

10,880,883Low-latency, low-bandwidth and low duty cycle operation in a wireless communication system2020 10,872,774Plasma processing apparatus and plasma processing method2020 10,873,435Configurable intra-slot frequency hopping for a variable length uplink control channel2020 10,868,594UE-RS-based open-loop and semi-open-loop MIMO2020 10,868,647Method and apparatus for separating a cell cluster for LTE EIMTA interference mitigation2020 10,868,591Spatial and frequency diversity design for machine type communications (MTC)2020 10,868,652Techniques and apparatuses for common uplink burst2020 10,869,266Energy efficient discovery and traffic management in a mesh WAN for IoEs with a wakeup receiver2020 10,862,639Decoupling of synchronization raster and channel raster2020 10,862,663Devices and methods for facilitating scalable synchronization channels2020 10,854,968Electronic device antennas having split return paths2020 10,854,954Hybrid antenna for a personal electronic device2020 10,855,417Control channel signaling techniques in wireless systems with multiple possible transmission time intervals2020 10,849,011Rach procedures using multiple PRACH transmissions2020 10,849,112Processing PMCH and EPDCCH in LTE2020 10,848,286Techniques for multi-cluster uplink transmissions2020 10,849,125Joint control for enhanced carrier aggregation2020 10,848,258Coordinating reference signals in wireless communication2020 10,848,359Virtual symbol splitting techniques in wireless communications2020 10,841,876Wake-up signal (WUS) and wake-up receiver (WUR) in a communication device2020 10,833,826Synchronization signals for narrowband operation2020 10,834,630Methods and apparatus for secure connectionless uplink small data transmission2020 10,831,828Method and system for improving datacenter operations utilizing layered information model2020 10,827,491Techniques for transmitting a sounding reference signal or scheduling request over an unlicensed radio frequency spectrum band2020 10,827,467Selecting a cell identifier based on a downlink control information2020 10,827,485Narrowband dependent subframe availability for MTC2020 10,826,741Techniques for reducing adjacent channel leakage-power ratio2020 10,817,608System and method for malware detection on a per packet basis2020 10,820,177Common search space for machine type communications2020 10,819,495Time-division duplex frame structure for narrowband communications2020 10,813,100Managing downlink and uplink resources for low cost user equipments2020 10,813,082Transmission time interval (TTI) bundling for control channels in long term evolution (LTE)2020 10,812,231Enhanced coordinated multipoint operation2020 10,804,617Electronic devices having shared antenna structures and split return paths2020 10,805,855Cell selection procedures for machine type communication devices2020 10,798,682Methods and apparatus for processing control and/or shared channels in long term evolution (LTE)2020 10,798,703Position of uplink short burst in new radio2020 10,790,944Comb interlacing of DFT-spreaded data and reference signals2020 10,791,523Configuring different uplink power control for long and short uplink bursts2020 10,791,556Techniques for transmitting channel usage beacon signals over an unlicensed radio frequency spectrum band2020 10,791,546PUCCH for MTC devices2020 10,785,736System and method that facilitates a coexistence of fifth generation new radio resource technology with narrowband internet-of-things technology2020 10,784,934Low peak-to-average power ratio precoded reference signal design for multiple-input, multiple-output transmissions2020 10,779,266Enhanced SRS transmission for MIMO operation in LTE-A2020 10,778,394Joint transmission of precoded and unprecoded sounding reference signals in uplink2020 10,778,487Techniques for a unified demodulation reference signal pattern for various multiplexing schemes2020 10,775,361Monitoring control channel with different encoding schemes2020 10,771,273Network information for assisting user equipment2020 10,771,299Reference signal configurations for doppler support in new radio design2020 10,771,222Techniques for transmitting preambles over an unlicensed radio frequency spectrum band2020 10,768,958Using virtual local area networks in a virtual computer system2020 10,764,021Narrowband time-division duplex frame structure for narrowband communications2020 10,764,908Subframe availability for machine type communications (MTC)2020 10,764,871Extension of data transmission from ULRB to ULCB2020 10,757,728Multiple transmission time interval coexistence2020 10,757,698Transmission time interval (TTI) bundling for physical downlink shared channel (PDSCH)2020 10,750,494Management of dynamic transmission time interval scheduling for low latency communications2020 10,749,652Methods and apparatus for employing multiple subframe configurations for HARQ operations2020 10,750,481Ultra-low latency LTE control data communication2020 10,743,338Downlink and uplink transmissions for high reliability low latency communications systems2020 10,742,234Code block group definition configuration for wireless communication2020 10,742,382Uplink multi-bits acknowledgement for self contained transmissions2020 10,743,296For an uplink control channel2020 10,736,093Optimization of search space and sounding reference signal placement for improved decoding timeline2020 10,736,057Method and apparatus for sounding reference signal triggering and power control for coordinated multi-point operations2020 10,736,113Positioning signal techniques for narrowband devices2020 10,735,117Techniques and apparatuses for signal quality measurements for narrowband internet of things (NB-IOT) devices2020 10,728,914Physical uplink control chanel (PUCCH) configuration for machine type communications (MTC)2020 10,727,580Millimeter wave antennas having isolated feeds2020 10,721,727DRX for narrowband transmissions2020 10,721,119Cross-carrier indication of uplink/downlink subframe configurations2020 10,721,726Power control and triggering of sounding reference signal on multiple component carriers2020 10,719,565Soft matching user identifiers2020 10,721,052Narrowband time-division duplex frame structure for narrowband communications2020 10,721,722Aspects of new radio PDCCH design2020 10,716,084Narrowband positioning signal design and procedures2020 10,716,129Techniques for transmitting and receiving channel occupancy identifiers over an unlicensed radio frequency spectrum band2020 10,708,020Short burst channel design and multiplexing2020 10,708,903DRX for narrowband transmissions2020 10,707,987Channel state information and adaptive modulation and coding design for long-term evolution machine type communications2020 10,701,723Demodulation reference signal with low peak-to-average power ratio and allocation information with granularity2020 10,701,729Protected CET transmission and reception2020 10,700,822Uplink grant management for LTE in unlicensed spectrum2020 10,694,531Grouping user equipment based on precoding matrix indicators for combined transmission2020 10,694,527Co-existence of reliable low latency and other services in a wireless network2020 10,681,676Narrowband management for machine type communications2020 10,680,771Reference signal transmission and averaging for wireless communications2020 10,680,782Strategic mapping of uplink resources2020 10,681,708Subslot bundling and acknowledgement2020 10,681,684Multi-PRB paging/random access for NB-IoT2020 10,674,509Resource allocation for narrowband communications using an expanded bandwidth2020 10,674,501Low latency physical downlink control channel and physical downlink shared channel2020 10,674,453Power control management in uplink (UL) coordinated multipoint (CoMP) transmission2020 10,674,522Scheduling request for one or more uplink transmissions using narrowband communications2020 10,660,009Linkage and indication of HARQ packet transmissions and parameters for URLLC in NR2020 10,659,967Channel usage beacon signal transmissions based on uplink transmissions over an unlicensed radio frequency spectrum band2020 10,659,207Uplink power control in new radio (NR)2020 10,651,961Techniques for transmitting and receiving downlink control information for a set of NOMA downlink transmissions2020 10,651,996Techniques for dynamic demodulation reference signal patterns for data transmission2020 10,652,768Control channel based broadcast messaging2020 10,652,879Semi-persistent scheduling for transmissions2020 10,652,760Multi-user multiplexing frame structure for eMTC2020 10,645,681Control channel design for machine type communications2020 10,645,699Service type indicator in master information block (MIB)2020 10,645,731Random access enhancement based on scalable signature design2020 10,645,682Techniques and apparatuses for physical downlink control channel downlink control information to search space mapping2020 10,638,471Low latency group acknowledgements2020 10,638,501Opportunistic uplink transmission2020 10,638,453Methods and apparatus for power saving in broadcasting carrier information2020 10,637,615Retransmission indication based on an acknowledgement based feedback scheme for wireless communication2020 10,638,444Positioning techniques for wireless communications devices using shared radio frequency spectrum2020 10,631,330Random access procedures under coverage limitations2020 10,631,301Positioning reference signal enhancements2020 10,630,518Pilot ratio adaptation2020 10,624,079Coexistence of narrow-band internet-of-things/enhanced machine type communication and 5G2020 10,624,119Transmission scheduling for contention based carrier2020 10,624,073Downlink and uplink channel with low latency2020 10,616,869Uplink channel design for slot-based transmission time interval (TTI)2020 10,616,878Semi-persistent scheduling for transmissions2020 10,609,619Cell selection procedures for machine type communication devices2020 10,609,726Downlink and uplink transmissions for high reliability low latency communications systems2020 10,602,504Multiple subframe set CSI feedback2020 10,602,488HARQ and control channel timing for enhanced machine type communications (EMTC)2020 10,595,280Repetition level coverage enhancement techniques for physical random access channel transmissions2020 10,594,451Uplink common burst symbol configuration2020 10,594,532Uplink transmit diversity and precoding2020 10,587,385Techniques and apparatuses for acknowledgement (ACK) / negative acknowledgement (NACK) signaling using a reference signal2020 10,588,119CRS bandwidth signaling2020 10,587,362Support for multiple coding schemes2020 10,588,141Multiple antennas and interruption time values for sounding reference signal (SRS) switching2020 10,581,153Electronic device antennas including conductive display structures2020 10,582,502Techniques for configuring uplink transmissions using shared radio frequency spectrum band2020 10,570,997Friction type one-way high damping gauge tensioner2020 10,574,306Codebook and feedback design for high order MIMO2020 10,575,258Techniques and apparatuses for uplink power control2020 10,575,205Transport block size determination2020 10,575,303Uplink design for narrowband LTE (NB-LTE)2020 10,574,417Method and apparatus for MTC device association schemes2020 10,575,324Efficient blind decoding of a search space2020 10,567,205Frequency and time domain multiplexing for low peak-to-average power ratio (PAPR) waveform design with multiple streams2020 10,568,130Techniques and apparatuses for multiple types of physical random access channel (PRACH) transmission utilization2020 10,568,092Scheduling and/or scheduling configuration2020 10,560,235Narrowband control channel decoding2020 10,555,210Group indicator for code block group based retransmission in wireless communication2020 10,555,345Random access procedure and broadcast prioritization for machine type communications (MTC)2020 10,555,286Uplink control information (UCI) transmission with bundling considerations2020 10,554,341Group acknowledgement/negative acknowledgement and triggering GACK/channel state information2020 10,555,304Narrow-band broadcast/multi-cast design2020 10,548,160Interference mitigation on grant-based and grant-less traffic multiplexing in wireless communication2020 10,548,124Downlink control format indicator2020 10,547,402Hybrid multiplexing for mission critical information2020 10,542,491Techniques and apparatuses for control channel monitoring using a wakeup signal2020 10,542,558Devices and methods for uplink control channel design in regular bursts for new radio (NR) networks2020 10,542,530Downlink control information (DCI) design for low cost devices2020 10,542,436Unlicensed spectrum operation for narrowband internet of things and enhanced machine type communication2020 10,531,445Methods and apparatus for managing machine-type communications2020 10,528,676Community translation of user-generated content2020 10,530,042Electronic device having shared antenna structures2020 10,530,625Low peak-to-average power ratio waveform design for frequency multiplexing of multiple streams2020 10,531,410Unified synchronization channel design used in different communication modes2020 10,531,459Methods and apparatus for IOT operation in unlicensed spectrum2020 10,531,456Narrow-band broadcast/multi-cast design2020 10,517,562Mobile radiography system and method for aligning mobile radiography system2019 10,524,257TTI bundling for URLLC UL/DL transmissions2019 10,524,108D2D communication for eMTC design considerations2019 10,524,233Techniques and apparatuses for transmit diversity while maintaining low peak to average power ratio2019 10,511,427Uplink control channel for acknowledging increased number of downlink component carriers2019 10,511,415Uplink ACK resource allocation in new radio2019 10,506,534Synchronization and data channel numerology in wireless communications2019 10,506,662Internet-of-Things design for unlicensed spectrum2019 10,505,172Current collecting board and battery module2019 10,503,729Processing method and device of the user input information2019 10,506,591Narrowband definition for enhanced machine type communication2019 10,498,506Flexible comb-based reference signals2019 10,498,494Group acknowledgement/negative acknowledgement and triggering GACK/channel state information2019 10,498,551Data multicast or broadcast on control channel for narrowband communication2019 10,499,421Techniques for configuring preamble and overhead signals for transmissions in an unlicensed radio frequency spectrum band2019 10,491,343Simultaneous narrowband transmission/reception in enhanced machine type communications2019 10,492,151Power control in new radio systems2019 10,484,156Search space associated with physical downlink control channel based on channel quality indicators2019 10,484,972Puncture recovery and resource reclaiming for multi-priority scheduling2019 10,484,945Techniques and apparatuses for configuring a battery recovery time period for a user equipment2019 10,485,023Payload-less physical uplink measurement indication channel (PUMICH) design for uplink based mobility2019 10,477,537Multi-PRB operation for narrowband systems2019 10,476,615Techniques for scaling bandwidth of an unlicensed radio frequency spectrum band2019 10,476,170Antenna arrays having conductive shielding buckets2019 10,477,540Relay for enhanced machine type communication and narrow band-internet of things2019 10,476,642Reference signal design2019 10,470,181Detecting DM-RS in portions of signals2019 10,470,170Uplink control channel for low latency communications2019 10,469,185Techniques for scaling bandwidth of an unlicensed radio frequency spectrum band2019 10,469,224Joint transmission of precoded and unprecoded sounding reference signals in uplink2019 10,469,229Techniques for signaling dynamic control region for PRACH transmission2019 10,461,797Narrowband communication for different device capabilities in unlicensed spectrum2019 10,462,812Transmission scheduling for contention based carrier2019 10,462,713Techniques for handover procedure management2019 10,461,908Techniques for providing channels in low latency LTE wireless communications2019 10,462,629Bandwidth selection for enhanced machine-type-communications2019 10,461,889Interference aware transceiver design for heterogeneous numerology systems2019 10,454,520Coverage enhancement and normal modes switching related optimization2019 10,455,517Managing unwanted transmissions2019 10,454,646Sounding reference signal transmissions in enhanced machine type communication2019 10,454,657Narrowband time-division duplex frame structure for narrowband communications2019 10,454,542Uplink MIMO design2019 10,455,624Ordered physical random access channel resource management2019 10,455,558Handling for interruption due to carrier switching and carrier switching capability indication2019 10,454,659Narrowband time-division duplex frame structure for narrowband communications2019 10,454,541Dynamic uplink antenna port management2019 10,454,658Narrowband time-division duplex frame structure for narrowband communications2019 10,455,544Enhanced paging procedures for machine type communications (MTC)2019 10,455,614Techniques for configuring preamble and overhead signals for transmissions in an unlicensed radio frequency spectrum band2019 10,454,644Techniques for multi-cluster uplink transmissions2019 10,448,421Cross-carrier scheduling for wireless devices2019 10,448,351Employing neighboring cell assistance information for interference mitigation2019 10,448,405Methods and apparatus for mitigating resource conflicts between ultra low latency (ULL) and legacy transmissions2019 10,447,459HD-FDD communication having improved peak data rates2019 10,448,385Configuration and transmission of a uplink short burst2019 10,439,782Implicitly linking aperiodic channel state information (A-CSI) reports to CSI-reference signal (CSI-RS) resources2019 10,440,742Dynamic grant-free and grant-based uplink transmissions2019 10,440,771Conditional HARQ feedback2019 10,440,661RAN procedures for extended discontinuous reception (DRX)2019 10,440,657Configuring different uplink power control for long and short uplink bursts2019 10,440,698Transmitting uplink control information2019 10,432,386Flexible time division duplexing (TDD) subframe structure with latency reduction2019 10,433,282Narrow bandwidth operation in LTE2019 10,425,971Collision reduction in contention-based access2019 10,425,267Techniques for reducing adjacent channel leakage-power ratio2019 10,425,923Uplink channel multiplexing and waveform selection2019 10,425,962PUCCH design with flexible symbol configuration2019 10,420,082Feedback of control information for multiple carriers2019 10,420,054Wireless communications in a system that supports a first subframe type having a first symbol duration and a second subframe type having a second symbol duration2019 10,420,094Methods and system for resource management in TTI (transmission time interval) bundling for improved phase continuity2019 10,419,188Virtual time-domain multiplexing for reference signals and data with modified cyclic prefix2019 10,419,171Flexible guard band for heterogeneous symbol lengths/subcarrier spacing2019 10,420,044Uplink power headroom report2019 10,411,856Reference signal and transmit power ratio design for non-orthogonal transmissions2019 10,412,690Power headroom reporting for low cost machine type communication2019 10,412,632Adaptive numerology for URLLC2019 10,411,838Coverage enhancements with carrier aggregation2019 10,412,627Signaling strategy for advanced receiver with interference cancellation and suppression2019 10,411,864Resource allocation for physical uplink control channel (PUCCH)2019 10,405,306Half-duplex operation for low cost wireless devices2019 10,404,443HD-FDD HARQ operation2019 10,405,299Reference signal transmission based on received signal quality2019 10,405,342Two step random access procedure2019 10,404,423Techniques for communicating in an expanded uplink pilot time slot2019 10,405,334Techniques for switching between downlink and uplink communications2019 10,396,943Asymmetric downlink-uplink transmission time interval configurations for low latency operation2019 10,396,962System and method for self-contained subslot bundling2019 10,397,864Enabling low power mode in a mobile device2019 10,397,915Latency reduction in shared or unlicensed spectrum2019 10,389,500Demodulation reference signal configuration in a multi-input multi-output wireless communication system2019 10,385,010Expedient synthesis of oseltamivir and related compounds via direct olefin diazidation-diamidation reaction2019 10,381,715Electronic device antennas having multi-band tuning capabilities2019 10,375,718Adaptive resource management for robust communication in new radio2019 10,375,578EIMTA configuration for LTE in unlicensed spectrum2019 10,368,374PRACH-based proximity detection2019 10,368,353Adaptive subcarrier spacing configuration2019 10,367,566Techniques for non-coherent joint transmissions in wireless communications2019 10,368,345Low latency physical downlink control channel and physical downlink shared channel2019 10,367,624Uplink multi-bits acknowledgement for self contained transmissions2019 10,367,570Electronic devices having printed circuits for antennas2019 10,362,571Power control and triggering of sounding reference signal on multiple component carriers2019 10,362,575Techniques for configuring uplink transmissions using shared radio frequency spectrum band2019 10,361,894Techniques for a unified demodulation reference signal pattern for various multiplexing schemes2019 10,356,807Techniques for transmitting and receiving channel occupancy identifiers over an unlicensed radio frequency spectrum band2019 10,355,828Fast radio link control error recovery with low latency transmissions2019 10,349,385Methods and apparatus for subframe configuration for wireless networks2019 10,341,890CSI feedback in LTE/LTE-advanced systems with unlicensed spectrum2019 10,341,896CSI reporting for LTE-TDD eIMTA2019 10,341,042Narrowband operation with reduced sampling rate2019 10,334,633Narrow band physical random access channel frequency hopping patterns and detection schemes2019 10,333,670Sounding reference signals with collisions in asymmetric carrier aggregation2019 10,334,594Ultra-reliable low-latency communication mini-slot control2019 10,334,617System information for enhanced machine type communication2019 10,327,265Random access procedure timing designs2019 10,327,232Techniques for allocating time and frequency resources to an uplink channel to carry uplink control information used for narrowband communication2019 10,321,447Determining a DRX configuration parameter based in part on an M-PDCCH parameter2019 10,321,417Enhanced cell acquisition for enhanced machine type communications2019 10,320,550CQI estimation in a wireless communication network2019 10,320,069Electronic device antennas having distributed capacitances2019 10,312,571Electronic device having isolated antenna structures2019 10,313,913Overload control and supervision for wireless devices2019 10,314,029Downlink channel design for LTE with low latency2019 10,314,037Latency reduction techniques in wireless communications2019 10,305,655Reporting of channel state information (CSI) feedback by a user equipment2019 10,305,626Enhanced transmission time interval bundling design for machine type communications2019 10,306,441Techniques for supporting a wider band mode for enhanced machine type communication2019 10,306,632Techniques for transmitting channel usage beacon signals over an unlicensed radio frequency spectrum band2019 10,306,594Uplink coverage enhancements2019 10,305,453Electronic device antennas having multiple operating modes2019 10,299,260Methods and apparatus for flexible bandwidth operation2019 10,298,378Enabling half-duplex operation2019 10,298,352Radio single symbol design via frequency division multiplexing of reference signals and data tones2019 10,299,291Identification and use of resource sets associated with different restriction levels for resource usage in a radio frequency spectrum band2019 10,292,176Subframe availability for machine type communications (MTC)2019 10,291,451PRACH design for larger cell radius2019 10,284,273Systems and methods for enhanced MIMO operation2019 10,284,311RSRP and path loss measurements with coverage enhancements2019 10,285,144Clean-slate synchronization signal design and cell search algorithms2019

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2000–2020Based in Sunnyvale, CA, US· patent location history

2006–2020Patents assigned to QUALCOMM INC (626)· patent assignee history

2006–2020Based in San Diego, CA, US· patent location history

2008–2020Patents assigned to XU HAO (112)· patent assignee history

2011–2020Patents assigned to APPLE INC (38)· patent assignee history

2011–2018Patents assigned to MALLADI DURGA PRASAD (26)· patent assignee history

2011–2020Based in Cupertino, CA, US· patent location history

2013–2020Patents assigned to GAAL PETER (25)· patent assignee history

2013–2020Based in Beijing, CN· patent location history

2015–2020Based in Palo Alto, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
QUALCOMM INC	626	2006–2020
XU HAOself	112	2008–2020
APPLE INC	38	2011–2020
MALLADI DURGA PRASAD	26	2011–2018
GAAL PETER	25	2013–2020

Locations

Location	Patents	Span
San Diego, California, US	482	2006–2020
Beijing, CN	154	2013–2020
Cupertino, California, US	40	2011–2020
Sunnyvale, California, US	14	2000–2020
Palo Alto, California, US	10	2015–2020