Inventor

ZHIFEI FAN

Inventor

US

Overview

2021–2026

Patent span

Electricity

Primary field (CPC H)

Patents· 130 as inventor

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

H04Lprimary

H04LTransmission of digital information, e.g. telegraphic communication41%

H04WWireless communication networks39%

H04BTransmission13%

H04JMultiplex communication5%

G01SRadio direction-finding1%

H03MCoding1%

G06KGraphical data reading0%

Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use0%

PatentTitleYear

12,562,943Preamble design for ambient-internet of things2026 12,556,904Waveform capability indication2026 12,550,065Energy harvesting tag random access and uplink scheduling2026 12,537,730Different symbol lengths for A-IoT inventory rounds2026 12,470,445Multi-carrier on-off keying communications2025 12,438,751Demodulation reference signal sequence signaling for single carrier waveforms with a nonlinear power amplify in higher bands2025 12,432,711Network initiated polling for uplink scheduling request2025 12,432,675Signal synchronization for over-the-air aggregation in a federated learning framework2025 12,432,716Dynamic reconfiguration of uplink control channel resources for a scheduling request2025 12,432,613Data scrambling in rate-split communications2025 12,388,597Demodulation reference signal (DM-RS) design for rate-splitting multi-user multiple input multiple output (MU-MIMO) communication2025 12,389,390User equipment processing capability indication2025 12,349,153Non-consecutive slot monitoring configuration for early access2025 12,328,273Code block-based resource mapping for transmissions with data-modulated demodulation reference signals2025 12,323,355Demodulation reference signal design for large sub-carrier spacing2025 12,317,274Physical downlink shared channel including part of a downlink control information2025 12,309,727Techniques for rate matching order for orthogonal time frequency space multiplexing2025 12,302,140Frequency tracking and timing tracking using wideband reference signal(s)2025 12,294,534Frequency selective phase tracking reference signal (PTRS) allocation2025 12,295,012Acknowledgement feedback in unlicensed new radio2025 12,279,246Modulation and coding scheme capability for high band wireless communication2025 12,273,292Techniques for providing UE-assistance for a selection of a demodulation reference signal port multiplexing pattern2025 12,273,225Frequency difference for ambient device decoding2025 12,245,228Semi-persistent scheduling and configured grants configuring bursts of multiple transmission opportunities2025 12,238,696Joint HARQ timing and SLIV design for multi-PDSCH grant2025 12,231,272Helper signal based envelope tracking2025 12,231,356Uplink frequency hopping and scheduling2025 12,212,445Modified demodulation reference signal patterns for orthogonal frequency-division multiplexing2025 12,199,897Discovery reference signal transmission in unlicensed band2025 12,184,570Phase tracking reference signals (PTRSs) with zero power (ZP) tones2024 12,184,569Reference signal multiplexing with downlink data2024 12,177,845Slot position offsets associated with a downlink control information in a physical downlink shared channel2024 12,167,424Operations for overlapping downlink communications with different resource allocations2024 12,137,017Precoded phase tracking reference signal sequence with distributed allocation2024 12,132,673Enhancement of physical uplink control channel (PUCCH) format2024 12,120,680Downlink control information for retransmission of semi-persistently scheduled physical downlink shared channels2024 12,114,312Physical uplink control channel configuration for millimeter wave bands2024 12,107,788Multiplexing synchronization signal blocks, control resource set, and system information blocks2024 12,081,479PTRS resource density recommendation and selection techniques2024 12,075,384Techniques for flexible reference signal patterns in wireless communications systems2024 12,068,826CQI reporting for multi-TCI based PDSCH reception2024 12,063,683Modulation and coding schemes for high band wireless communications2024 12,057,980Cyclic prefix distribution2024 12,058,066Phase tracking reference signal (PTRS) allocation for multi-symbol demodulation reference signals (DMRS)2024 12,041,002Variable tracking reference signal density2024 12,021,771Techniques for configuring reference signals for random access messages in wireless communications2024 12,010,049Mixed-waveform communications2024 12,009,962Changing the phase tracking reference signal (PTRS) pattern over different symbols2024 11,997,514Determination of UE-specific PDCCH monitoring occasions2024 11,996,972Adaptive non-uniform constellation operation2024 11,979,884HARQ timing for multi-PDSCH grant2024 11,963,176Channelization for uplink transmissions2024 11,963,178Uplink control channel transmission in high band operation2024 11,943,051Rate matching and channel interleaving for probabilistic shaping2024 11,916,812OFDM control channel with single carrier waveform data channel2024 11,917,697Interlace PRACH design in NR-U2024 11,902,972Conflicting physical downlink shared channel (PDSCH) transmission associated with a multi-PDSCH semi-persistent scheduling2024 11,870,592Trigger retransmission of a feedback in unlicensed spectrum2024 11,870,626Multi-cluster low peak to average power ratio waveform design2024 11,856,581Multi-physical downlink shared channel grant configuration2023 11,849,455Configurations of common physical uplink control channel resource sets2023 11,805,526Physical uplink control channel (PUCCH) configuration for new-radio-spectrum sharing (NR-SS)2023 11,792,810Determination of physical downlink control channel receive time based on physical downlink shared channel reference symbol2023 11,785,645Random access coverage extension in wireless communications2023 11,777,677Techniques for aligning clustered reference signal tones in wireless communications2023 11,770,221Resource allocation constraint mitigation2023 11,751,150Synchronization signal block indexing schemes2023 11,751,152SSB structure for NR communications2023 11,737,094Slot position offsets associated with a downlink control information in a physical downlink shared channel2023 11,736,221Overhead parameter for a single transport block over multiple slots2023 11,722,910On-demand coverage extended broadcast signal2023 11,716,711Time domain resource allocation for a time domain waveform2023 11,716,610Wideband uplink control channel capability indication during initial access2023 11,706,768Uplink control channel transmission in high band operation2023 11,695,530DMRS design for DFT-s-OFDM with increased subcarrier spacing2023 11,695,512Downlink assignment index (DAI) updates for piggyback downlink control information (DCI)2023 11,696,273Beam switching capability for systems with high subcarrier spacing2023 11,683,805Resource selection for communicating uplink control information2023 11,683,127Downlink control information (DCI) piggyback on semi persistent scheduling (SPS) channel2023 11,683,815Piggyback downlink control information (DCI) scheduling limit2023 11,678,379Physical random access channel (PRACH) transmission in new radio (NR)2023 11,671,962Switching gap based rate matching2023 11,665,718Dynamic control channel resources2023 11,659,556Channelization for uplink transmissions2023 11,653,347Coexistence of multiple uplink control channel formats for wireless communication with power spectral density limitation2023 11,653,309Power scaling for demodulation reference signal and data transmission2023 11,638,203Differentiating between synchronization signal block transmission in a licensed operating mode and an unlicensed operating mode2023 11,637,730Controlling a reference signal pattern based on doppler parameters2023 11,632,272Multiplexing demodulation reference signal and data in orthogonal time frequency space waveform2023 11,627,578Beam switching operation for systems with high subcarrier spacing2023 11,627,608Indicating system timing information in high band communications2023 11,621,819Data-modulated demodulation reference signals2023 11,621,813Group common demodulation reference signals with time domain waveform2023 11,617,210Physical random access channel preamble transmission and detection for large subcarrier spacing2023 11,617,181Multi-stage downlink grant for multiple PDSCH2023 11,611,980Sidelink shared channel demodulation reference signal configuration schemes2023 11,606,175Enhancement of physical uplink control channel (PUCCH) format2023 11,601,967Techniques for semi-static codebook design2023 11,601,253Synchronization signal block design2023 11,589,387Spatial LBT with broadcast/multicast reception2023 11,576,213Random access channel transmission procedures in higher bands2023 11,576,164Dynamic slot format indicator configuration2023 11,576,160Physical uplink control channel (PUCCH) configuration for new-radio-spectrum sharing (NR-SS)2023 11,570,805Robustness enhancement for downlink control information in a downlink data channel2023 11,558,835Multi-synchronization signal block operation2023 11,552,691Beam recovery grouping2023 11,546,890Intra-symbol multiplexing with single carrier waveform2023 11,546,916Rate-matching of PDSCH in the control resource set2023 11,540,268Single transport block over multiple slots with discontinuous SLIVs2022 11,516,680Techniques for indicating directional information for wireless communications2022 11,510,107Multiplexing interlaces with a single carrier waveform2022 11,510,243Transmission countdown and improvements for a beam based channel access procedure2022 11,502,811Automatic adaptation of data subcarrier spacing numerology based on synchronization signal block transmission2022 11,411,791Intra-symbol multiplexing with a single carrier waveform2022 11,405,909Downlink control information piggyback in physical downlink shared channel, downlink control information encoding2022 11,362,770Trigger retransmission of a feedback in unlicensed spectrum2022 11,363,634Spatial listen before talk by precoded request to send and clear to send via whitening2022 11,317,445Transmission of communication signals associated with different listen-before-talk time periods2022 11,284,407Spatial listen before talk2022 11,252,706Uplink control channel codebook design in new radio unlicensed2022 11,251,914Flexible single carrier waveforms2022 11,251,916Reporting uplink channel feedback in wireless communications2022 11,246,155Acknowledgement feedback in unlicensed new radio2022 11,240,688Over-the-air interference coordination among base stations2022 11,234,218Descriptor channel designs for uplink channels in a shared radio frequency spectrum band2022 11,229,033Over-the-air interference coordination2022 11,229,061Listen-before-talk beam adjustment procedures2022 11,224,034Configuring uplink control channel resources for communications in a shared radio frequency spectrum2022 11,202,308Resource allocation pattern signaling for mini-slots2021 11,147,102Random access coverage extension in wireless communications2021

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2021–2026Patents assigned to QUALCOMM INC (130)· patent assignee history

2021–2026Based in US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
QUALCOMM INC	130	2021–2026

Locations

Location	Patents	Span
US	130	2021–2026