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公开(公告)号：US20220069929A1
公开(公告)日：2022-03-03
申请号：US17009502
申请日：2020-09-01
Applicant: QUALCOMM Incorporated
Inventor： Peer Berger , Shay Landis , Moshe Ben-Ari , Amit Bar-Or Tillinger , Michael Levitsky , Assaf Touboul
IPC: H04B17/364 , H04B17/382 , H04L5/00
Abstract: Methods, systems, and devices for wireless communications are described for estimating one or more environmental factors at a first user equipment (UE). The one or more environmental factors may be based on estimates of a Doppler spread and a power delay profile (PDP) taken over a set of subsets of a time period, based on multiple signals received from a second UE or a base station over the time period. The first UE may estimate the Doppler spread and PDP for a channel over each of the set of subsets of the time period, and may combine the Doppler spread over the set of subsets and combine the PDP over the set of subsets. The first UE may use the combined Doppler spread and the combined PDP to determine one or more communication parameters for the channel.
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公开(公告)号：US11265199B2
公开(公告)日：2022-03-01
申请号：US16901986
申请日：2020-06-15
Applicant: QUALCOMM Incorporated
Inventor： Assaf Touboul , Ronen Shaked
IPC: H04L27/26
Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a transmitting device may identify one or more blocks of data for transmission to a receiving device. The transmitting device may map subsets of bits of the one or more blocks of data to a constellation of symbol points of a modulation order to obtain a set of symbols and may then transmit a signal including the set of symbols to a receiving device. In some systems, a receiving device may receive, from the transmitting device, the signal including the set of symbols associated with blocks of data. The receiving device may de-map the set of symbols according to a constellation of symbol points of a modulation order to obtain a plurality of sets of de-mapped data bits and decode a plurality of sets of de-mapped data bits to obtain the blocks of data.
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公开(公告)号：US11190383B2
公开(公告)日：2021-11-30
申请号：US17172915
申请日：2021-02-10
Applicant: QUALCOMM Incorporated
Inventor： Ory Eger , Ran Berliner , Assaf Touboul , Noam Zach , Sharon Levy , Guy Wolf , Amit Bar-or Tillinger , Shay Landis , Gideon Kutz
IPC: H04L27/26 , H04L27/34 , H04B7/0456 , H04W72/04 , H04L5/00
Abstract: This disclosure provides methods, devices and systems for reducing PAPR in wireless communications. Some implementations more specifically relate to suppressing the amplitudes of a data signal that exceed a threshold amplitude level. In some implementations, a transmitting device may detect one or more peaks associated with a data signal to be transmitted to a receiving device. A peak may be any sample of a data signal having an amplitude that exceeds a threshold amplitude level. The transmitting device generates peak suppression information indicating the amplitude, a phase and a position of each of the samples associated with the detected peaks. The transmitting device adjusts the data signal by reducing the amplitudes associated with the detected peaks and transmits the adjusted data signal, with the peak suppression information, to the receiving device. In some implementations, the transmitting device may compress the peak suppression information to reduce the overhead of the transmission.
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公开(公告)号：US20210359828A1
公开(公告)日：2021-11-18
申请号：US16876575
申请日：2020-05-18
Applicant: QUALCOMM Incorporated
Inventor： Michael Levitsky , Assaf Touboul , Ran Berliner , Shay Landis , Lior Uziel
Abstract: Methods, systems, and devices for wireless communications are described. A base station may transmit repetitions of a tracking reference signal to a user equipment (UE). The UE may determine a Doppler frequency for the downlink channel by measuring the repetitions of the tracking reference signal. The UE may transmit an indication of the downlink Doppler frequency to the base station. The base station may determine the uplink Doppler frequency based on the downlink Doppler frequency. The base station may use the uplink Doppler frequency to select an uplink demodulation reference signal (DMRS) configuration for the UE.
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公开(公告)号：US11172468B2
公开(公告)日：2021-11-09
申请号：US16846225
申请日：2020-04-10
Applicant: QUALCOMM Incorporated
Inventor： Moshe Ben-Ari , Shay Landis , Assaf Touboul
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine a set of channel quality metrics associated with a set of physical sidelink control channel (PSCCH) messages; and determine, based at least in part on the set of channel quality metrics, a subset of physical sidelink shared channel (PSSCH) messages, of a set of PSSCH messages, to attempt to receive. Numerous other aspects are provided.
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Patent Agency Ranking
公开(公告)号：US11159197B2
公开(公告)日：2021-10-26
申请号：US16397517
申请日：2019-04-29
Applicant: QUALCOMM Incorporated
Inventor： Haim Mendel Weissman , Assaf Touboul
Abstract: An in-band full-duplex transceiver includes a self-interference mixer for up-converting an adjusted digital baseband signal into an up-converted self-interference cancellation signal. The adjusted digital baseband signal has a phase opposite to a phase for a leakage signal from a leakage path for the transceiver. Similarly, the adjusted digital baseband signal has a magnitude matching a magnitude for the leakage signal. Given this phasing and magnitude for the up-converted self-interference signal, it substantially cancels the leakage signal when added with a received signal contaminated by the leakage signal.
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57.发明申请公开(公告)号：US20210328847A1
公开(公告)日：2021-10-21
申请号：US16849944
申请日：2020-04-15
Applicant: QUALCOMM INCORPORATED
Inventor： Noam Zach , Guy Wolf , Sharon Levy , Ory Eger , Assaf Touboul
IPC: H04L27/26 , H04B7/0452 , H04B7/06
Abstract: Methods related to wireless communication systems and reducing peak-to-average-power ratio (PAPR) in MU-MIMO transmissions are provided. A base station (BS) generates a plurality of communication signals including data for a plurality of user equipment (UE) devices in a plurality of serving beam subspaces. The BS may also generate a peak-to-average-power ratio (PAPR) reduction signal for one or more of the plurality of communication signals. A first portion of the PAPR reduction signal is in a first serving beam subspace of the plurality of serving beam subspaces based on a first error vector magnitude (EVM) associated with a first UE of the plurality of UEs. A second portion of the PAPR reduction signal is in a non-serving beam subspace. The BS may also transmit, to the plurality of UEs, the plurality of communication signals and the PAPR reduction signal. Other features are also claimed and described.
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公开(公告)号：US20210328752A1
公开(公告)日：2021-10-21
申请号：US17031876
申请日：2020-09-24
Applicant: QUALCOMM Incorporated
Inventor： Ory Eger , Assaf Touboul , Noam Zach , Sharon Levy , Guy Wolf , Shay Landis , Ran Berliner
Abstract: A base station may multiplex a peak suppression information message (PSIM) on a physical downlink shared channel (PDSCH) with data for efficient implementation of PSIMs for peak to average power ratio (PAPR) reduction. A base station may clip peaks from a signal to be transmitted and capture information of the clipped peaks into a PSIM. The base station may then multiplex the PSIM on the PDSCH such that a receiving device (for example, a user equipment (UE)) may receive the signal and reconstruct the signal (for example, PDSCH data) using the PSIM. According to some aspects, each PDSCH symbol may include a PSIM for a previous PDSCH symbol, or the PSIM may be for the current symbol. Various aspects of the techniques described herein may further provide for PSIM positioning in frequency, PSIM modulation, PSIM channel coding, PSIM multiple-input multiple-output (MIMO) configurations, among other examples.
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公开(公告)号：US11129116B2
公开(公告)日：2021-09-21
申请号：US16448793
申请日：2019-06-21
Applicant: QUALCOMM Incorporated
Inventor： Shay Landis , Guy Wolf , Assaf Touboul
Abstract: This disclosure generally relates to systems, devices, apparatuses, products, and methods for wireless communication. For example, a user equipment (UE) device within a wireless communication system may generate an uplink signal. The uplink signal comprises at least one of a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), a physical random access channel (PRACH), or a sounding reference signal (SRS). The UE transmits the uplink signal from the UE, and receives a signal at the UE. The UE performs a correlation between the transmitted uplink signal and the received signal, and determines whether an object is present within a transmission path from the UE based on the correlation. The UE may set a transmission parameter at the UE based on the determination of whether the object is present within the transmission path.
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公开(公告)号：US20210242989A1
公开(公告)日：2021-08-05
申请号：US16777667
申请日：2020-01-30
Applicant: QUALCOMM Incorporated
Inventor： Michael Levitsky , Assaf Touboul , Ran Berliner , Gideon Shlomo Kutz , Shay Landis
Abstract: Wireless communication techniques that utilize a general purpose (GP) reference signal for non-coherent millimeter-wave communication are discussed. The GP reference signal may have a special structure allowing it to be flexibly used by a mobile device for multiple purposes. A base station may determine a repetition factor for a repetitive intra-symbol GP reference signal mapping based on an event that triggered transmission of the GP reference signal. The base station may also map the GP reference signal to resource elements of a symbol based, at least in part, on the determined repetition factor of the repetitive intra-symbol GP reference signal mapping. The base station may also transmit the mapped GP reference signal. A mobile device may receive the GP reference signal and modify at least one parameter of a plurality of parameters based, at least in part, on processing of the GP reference signal.
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