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81.发明授权公开(公告)号：US10154481B2
公开(公告)日：2018-12-11
申请号：US15812994
申请日：2017-11-14
Applicant: QUALCOMM Incorporated
Inventor： Sony Akkarakaran , Tao Luo , Wanshi Chen , Hao Xu , Peter Gaal , Yi Huang , Renqiu Wang , Seyong Park
Abstract: Aspects of the disclosure relate to wireless communication systems configured to provide techniques for strategically placing a sounding reference signal (SRS) within a slot to improve the decoding timeline. Aspects of the disclosure further relate to wireless communication systems configured to optimize the physical downlink control channel (PDCCH) search space within a slot to improve the decoding timeline. Features may also include placing the SRS near the end of the slot, such as after the uplink user data traffic and the corresponding uplink demodulation reference signal (DMRS). In addition, features may also include identifying the PDCCH search space within the slot based on at least a slot index of the slot. Other aspects, embodiments, and features are also claimed and described.
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82.发明申请公开(公告)号：US20180213510A1
公开(公告)日：2018-07-26
申请号：US15693197
申请日：2017-08-31
Applicant: QUALCOMM Incorporated
Inventor： Sony AKKARAKARAN , Seyong Park , Tao Luo , Wei Zeng , Hao Xu , Peter Gaal , Yi Huang , Renqiu Wang
Abstract: Some techniques and apparatuses described herein may assign resource elements of a particular resource block for transmission by two or more different antennas in a fashion such that the symbols are interleaved in frequency and/or in time, which improves frequency diversity of the two or more different antennas, thereby improving uplink performance of the UE. In some aspects, when the two or more resource blocks are contiguous, then each antenna may produce an interleaved frequency division multiple access (IFDMA) waveform, which may maintain peak to average power ratio (PAPR) properties of a single channel FDMA transmission. Thus, some techniques and apparatuses described herein may achieve transmit diversity and/or frequency diversity of a stream of symbols on two or more antennas without significantly increasing the PAPR of the stream of symbols.
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83.发明申请公开(公告)号：US20180212810A1
公开(公告)日：2018-07-26
申请号：US15674428
申请日：2017-08-10
Applicant: QUALCOMM Incorporated
Inventor： Seyong Park , Sony Akkarakaran , Wei Zeng , Peter Gaal , Yi Huang , Renqiu Wang , Hao Xu , Tao Luo , Tingfang Ji
Abstract: Methods, systems, and devices for wireless communications are described that support frequency and time domain multiplexing for low peak-to-average waveforms with multiple streams. A user equipment (UE) may identify sets of symbols associated with different streams (e.g., multiple single-carrier discrete Fourier transform (DFT)-spread waveforms), where each stream may be associated with a low peak-to-average power ratio (PAPR). In some cases, different waveforms may be mapped to subsets of frequency resources through frequency division multiplexing (FDM). The UE may further reduce the PAPR of the multiplexed waveforms by performing time division multiplexing (TDM) across the single-carrier streams, and sets of symbols that are not used by one waveform may be used by another waveform. Frequency domain phase ramps may be applied to align the multiplexed waveforms. Signals included in an uplink transmission according to these techniques may maintain properties similar to single-carrier waveforms, including a low PAPR.
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公开(公告)号：US09967122B2
公开(公告)日：2018-05-08
申请号：US15271825
申请日：2016-09-21
Applicant: QUALCOMM Incorporated
Inventor： Seyong Park , Wei Zeng , Joseph Binamira Soriaga , Tingfang Ji
IPC: H04L27/26
CPC classification number: H04L27/2605 , H04L27/2602 , H04L27/2628 , H04L27/2636 , H04L27/265
Abstract: Aspects of the present disclosure provide systems, methods, and apparatuses for implementing the multiplexing of different orthogonal frequency-division multiplexing (OFDM) waveforms using a transmitter and receiver configured to process different types of signals without a need for distinct hardware structures. In one example, aspects of the present disclosure may include a transmitter configured to transmit both a first type of discrete fourier transform (DFT)-spread OFDM waveform and a second type of DFT-spread OFDM waveform that may be multiplexed over the wireless channel. In some aspects, the transmitter may modify the numerology of the zero-tail DFT-spread OFDM waveform to match the numerology of other OFDM waveforms (e.g., OFDM waveform with zero-guard or a single carrier DFT-spread OFDM with zero-guard).
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公开(公告)号：US09712355B1
公开(公告)日：2017-07-18
申请号：US15264967
申请日：2016-09-14
Applicant: QUALCOMM Incorporated
Inventor： Seyong Park , Wei Zeng , Joseph Binamira Soriaga , Jay Kumar Sundararajan , Tingfang Ji
CPC classification number: H04L27/10 , H04B1/707 , H04L5/0021 , H04L5/0026 , H04L27/0012 , H04L27/106 , H04L27/14 , H04L27/18 , H04L27/30 , H04L27/34 , H04W88/02
Abstract: Various aspects described herein relate to distinguishing frequency shift keying (FSK) signals transmitted by each user of multiple users in a wireless communications system. One or more symbols for transmitting in an FSK-modulated signal can be obtained by a user. The one or more symbols can be encoded based on a tone location assignment corresponding to a unique spreading code associated with the user. Quadrature amplitude modulation (QAM) and/or phase-shift keying (PSK) can be performed over at least one tone associated with the encoded symbols. Each user can transmit the encoded symbols to a receiving entity, where the receiving entity can decode each symbol received from the plurality of users to produce a distinguishable symbol for each user based on the unique spreading codes associated with each user.
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Patent Agency Ranking
公开(公告)号：US12238809B2
公开(公告)日：2025-02-25
申请号：US18302369
申请日：2023-04-18
Applicant: QUALCOMM Incorporated
Inventor： Hwan Joon Kwon , Huilin Xu , Yuchul Kim , Peter Pui Lok Ang , Yeliz Tokgoz , Jay Kumar Sundararajan , Krishna Kiran Mukkavilli , Tingfang Ji , Jing Lei , Ravi Agarwal , Seyong Park , Seyedkianoush Hosseini
IPC: H04W76/28 , H04W52/02 , H04W72/0453 , H04W72/23 , H04W28/18
Abstract: Wireless communication devices, systems, and methods related to power saving, including during connected mode operation and for extended reality (XR) data communications with or without discontinuous reception (DRX), are provided. For example, a method of wireless communication includes receiving, while in a connected mode, a configuration based on data traffic for the wireless communication device, the configuration indicating: a first zone associated with a first set of operating parameters for the wireless communication device; and a second zone associated with a second set of operating parameters for the wireless communication device, the second set of operating parameters being different than the first set of operating parameters; operating in the first zone with the first set of operating parameters to monitor for a first downlink communication signal; and operating in the second zone with the second set of operating parameters.
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公开(公告)号：US12218878B2
公开(公告)日：2025-02-04
申请号：US18356511
申请日：2023-07-21
Applicant: QUALCOMM Incorporated
Inventor： Jing Lei , Linhai He , Seyong Park , Gabi Sarkis , Yi Huang , Renqiu Wang , Wanshi Chen
Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may identify a payload for inclusion in an uplink transmission. The UE may organize the payload into a code block group (CBG) that includes one or more code blocks (CB). The UE may map each CB of the CBG to a corresponding uplink shared channel resource unit (e.g., a physical uplink shared channel resource unit) of an uplink transmission occasion of the first UE. The uplink transmission occasion may also be shared with one or more additional UEs such that the CBG of the first UE is multiplexed with additional CBGs from the additional UEs. The UE may transmit, to a base station, the uplink transmission including each uplink shared channel resource unit on which the CBG is organized.
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公开(公告)号：US12204042B2
公开(公告)日：2025-01-21
申请号：US17195097
申请日：2021-03-08
Applicant: QUALCOMM Incorporated
Inventor： Alexandros Manolakos , Seyong Park , Weimin Duan , Xiaoxin Zhang
Abstract: A communication device includes a processor configured to: transfer, via a transceiver, a wireless data signal within a communication frequency range; determine a capability of the communication device to measure a wireless radar signal received via the transceiver, the wireless radar signal having a frequency within the communication frequency range; transmit, via the transceiver to a network entity, a first indication of the capability of the communication device to measure the wireless radar signal, the first indication being indicative of a transmit power level of the wireless radar signal from a source of the wireless radar signal or a received power level of the wireless radar signal at the communication device; receive, via the transceiver, the wireless radar signal; determine a positioning measurement of the wireless radar signal; and transmit a second indication of the positioning measurement via the transceiver to the network entity.
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公开(公告)号：US12200773B2
公开(公告)日：2025-01-14
申请号：US18447962
申请日：2023-08-10
Applicant: QUALCOMM Incorporated
Inventor： Jing Lei , Wanshi Chen , Seyong Park
IPC: H04W74/0833 , H04L5/00 , H04L27/26 , H04W72/0446 , H04W76/27
Abstract: Methods, systems, and devices for wireless communications are described for a two-step random access channel (RACH) procedure in which uplink random access preamble and message transmission occasions may span multiple transmission slots. Reference signal resources for transmitting a reference signal with a first random access message of the two-step RACH procedure may include at least one symbol in each of the multiple transmission slots. The reference signal resources, reference signal sequence, or both, may be identified based on a particular uplink random access message transmission occasion, random access preamble transmission occasion, random access preamble sequence configuration, or any combinations thereof.
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公开(公告)号：US12199924B2
公开(公告)日：2025-01-14
申请号：US18055363
申请日：2022-11-14
Applicant: QUALCOMM Incorporated
Inventor： Jing Lei , Seyong Park
IPC: H04L5/00 , H04L5/10 , H04W56/00 , H04W72/044 , H04W74/0833 , H04W76/11
Abstract: A random access configuration information based on a reference SCS may allow for a unified coordinate system used by the base station and UEs that describes the time-frequency resource configuration for a two-step RACH procedure. The apparatus receives, from a base station, random access configuration information for the base station. The apparatus determines a first time duration for a preamble of a first random access message based on the random access configuration information received from the base station and a reference SCS associated with an uplink BWP configured for the first random access message. The apparatus determines a second time duration for a payload of the first random access message based on the random access configuration information received from the base station and the reference SCS. The apparatus transmits the first message to the base station to initiate a random access procedure.
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