公开(公告)号：US11088754B2

公开(公告)日：2021-08-10

申请号：US16234365

申请日：2018-12-27

Applicant: QUALCOMM Incorporated

Inventor： Michael Levitsky ,  Shmuel Vagner ,  Igor Gutman ,  Gideon Shlomo Kutz ,  Assaf Touboul ,  Ran Berliner ,  Shay Landis ,  Meir Tsadik

IPC: H04B7/08 ,  H04L5/00 ,  H04W36/30 ,  H04W72/12 ,  H04B7/06

Abstract: In order to enable asynchronous, autonomous reception beam switching at a UE while minimizing degradation due to a transient in link performance, a method, apparatus, and computer-readable medium for wireless communication are provided. The apparatus receives CSI-RS on different reception beams in different symbols, wherein one reception beam being a current serving reception beam, and determines whether to switch to a different reception beam based on a SPEFF metric for the different reception beam and/or a severity of a potential link transient qualified in terms of the expected CQI/MCS degradation in the channel. The apparatus may switch from a current serving reception beam to a second reception beam when a first channel quality for the current serving reception beam is within a threshold value of a second channel quality for the second reception beam, the second channel quality being measured using a current configuration.

公开(公告)号：US10715237B1

公开(公告)日：2020-07-14

申请号：US16590090

申请日：2019-10-01

Applicant: QUALCOMM Incorporated

Inventor： Shay Landis ,  Igor Gutman ,  Ran Berliner ,  Gideon Shlomo Kutz ,  Assaf Touboul

IPC: H04B7/06 ,  H04W24/08 ,  H04B17/318 ,  H04L5/00

Abstract: In some aspects, a UE may select a first type of antenna for communication with a base station based at least in part on a beam management procedure that uses an RSRP parameter determined using a downlink reference signal associated with a single antenna port; measure a CSI-RS resource for CSF, associated with multiple antenna ports, using a second type of antenna and after selecting the first type of antenna; compare a first spectral efficiency parameter associated with communicating using the first type of antenna and a second spectral efficiency parameter determined based at least in part on measuring the CSI-RS resource for CSF using the second type of antenna; and select one of the first type of antenna or the second type of antenna for subsequent communication with the base station based at least in part on comparing the first spectral efficiency parameter and the second spectral efficiency parameter.

公开(公告)号：US10700760B1

公开(公告)日：2020-06-30

申请号：US16528451

申请日：2019-07-31

Applicant: QUALCOMM Incorporated

Inventor： Ran Berliner ,  Igor Gutman ,  Shay Landis ,  Gideon Shlomo Kutz ,  Assaf Touboul

IPC: H04B7/02 ,  H04L1/02 ,  H04B7/08 ,  H04B17/21 ,  H04B17/327

Abstract: Aspects of the disclosure relate to minimizing the block error rate (BLER) experienced by a user equipment (UE) upon a downlink beam switch at the base station. The UE may measure the reference signal received power (RSRP) of each of a plurality of downlink beams during a beam sweep and modify an automatic gain control (AGC) state of the UE based on the difference in RSRP between a current downlink beam and an expected downlink beam expected to be selected by the base station for subsequent unicast downlink transmissions to the UE. In some examples, the expected downlink beam may have a highest RSRP among all of the measured RSRPs of the different downlink beams Other aspects, features, and embodiments are also claimed and described.

公开(公告)号：US10687262B2

公开(公告)日：2020-06-16

申请号：US15801864

申请日：2017-11-02

Applicant: QUALCOMM INCORPORATED

Inventor： Assaf Touboul ,  Ran Berliner ,  Ronen Greenberger

IPC: H04W36/00 ,  H04W36/18 ,  H04B7/0408 ,  H04W36/02 ,  H04W36/06 ,  H04B7/06 ,  H04W72/04 ,  H04W16/28 ,  H04W36/30 ,  H04W76/27 ,  H04W36/24 ,  H04W36/38

Abstract: A method for communication beam transition in a communication system includes sending beam information on a first communication beam, receiving a beam switch command on the first communication beam, the beam switch command requesting a transition from the first communication beam to a second communication beam, simultaneously sending and receiving information on the first communication beam and the second communication beam, and ceasing sending and receiving information on the first communication beam when transition to the second communication beam is completed.

公开(公告)号：US09843974B1

公开(公告)日：2017-12-12

申请号：US15661743

申请日：2017-07-27

Applicant: QUALCOMM INCORPORATED

Inventor： Assaf Touboul ,  Ran Berliner ,  Ronen Greenberger

IPC: H04W36/00 ,  H04W36/18 ,  H04W36/06 ,  H04W36/02 ,  H04W36/30

CPC classification number: H04W36/18 ,  H04B7/0408 ,  H04B7/0623 ,  H04W36/0016 ,  H04W36/0094 ,  H04W36/026 ,  H04W36/06 ,  H04W36/24 ,  H04W36/30 ,  H04W36/38 ,  H04W72/046 ,  H04W76/27

Abstract: A method for communication beam transition in a communication system includes exchanging information between a first communication device and a second communication device on a first communication beam, receiving beam information from the second communication device on the first communication beam, sending from the first communication device a beam switch command on the first communication beam, the beam switch command requesting a transition from the first communication beam to a second communication beam, simultaneously sending information from the first communication device to the second communication device on the first communication beam and the second communication beam, and ceasing sending information from the first communication device to the second communication device on the first communication beam when transition to the second communication beam is completed by the first communication device and the second communication device.

公开(公告)号：US12278706B2

公开(公告)日：2025-04-15

申请号：US17348496

申请日：2021-06-15

Applicant: QUALCOMM Incorporated

Inventor： Ran Berliner ,  Shay Landis ,  Yehonatan Dallal ,  Idan Michael Horn

IPC: H04L1/1812 ,  H04W72/21

Abstract: Aspects presented herein may enable a UE to provide HARQ feedback for multiple groups of CBs based on their associated CBG and TBG. In one aspect, a UE receives an RRC configuration for a HARQ transmission, the RRC configuration including a CBG configuration and a TBG configuration. The UE determines, based on the CBG configuration, a number of CBs for each of a plurality of CBGs for HARQ feedback. The UE determines, based on the TBG configuration, a number of TBs for each of a plurality of TBGs for the HARQ feedback. The UE transmits, to a base station, the HARQ feedback, where the HARQ feedback is based on the number of CBs for each of the plurality of CBGs and the number of TBs for each of the plurality of TBGs.

公开(公告)号：US12231912B2

公开(公告)日：2025-02-18

申请号：US17351819

申请日：2021-06-18

Applicant: QUALCOMM Incorporated

Inventor： Idan Michael Horn ,  Shay Landis ,  Assaf Touboul ,  Yehonatan Dallal ,  Ran Berliner ,  Amit Bar-Or Tillinger ,  Danlu Zhang

IPC: H04W16/28 ,  H04W24/08 ,  H04W72/21

Abstract: Aspects of the disclosure relate to reporting and correcting a spatial misalignment of an orbital angular momentum (OAM) waveform communicated from a second device to a first device. In an aspect, the first device receives from the second device, the OAM waveform having a spatial misalignment with respect to the second device. The first device determines the spatial misalignment and further determines spatial coordinates for correcting the spatial misalignment and/or one or more channel measurements of the OAM waveform. Thereafter, the first device sends a report based on the spatial misalignment to the second device, the report including the spatial coordinates for correcting the spatial misalignment and/or the one or more channel measurements. The first device then receives an adjusted OAM waveform from the second device, wherein the adjusted OAM waveform is received having a corrected spatial alignment with respect to the second device based on the report.

公开(公告)号：US20240349323A1

公开(公告)日：2024-10-17

申请号：US18299574

申请日：2023-04-12

Applicant: QUALCOMM Incorporated

Inventor： Shay LANDIS ,  Ran Berliner ,  Peer Berger ,  Yevgeny Zagalsky ,  Eitan Yerushalmi ,  David Jacobian

IPC: H04W72/542 ,  H04L25/02 ,  H04W72/23

CPC classification number: H04W72/542 ,  H04L25/0224 ,  H04W72/23

Abstract: Aspects relate to mechanisms for mutual information (MI)-based physical downlink control channel (PDCCH) candidate pruning. A UE may receive a plurality of PDCCH candidates in a search space. Each of the PDCCH candidates includes a demodulation reference signal (DMRS) generated with the same scrambling seed and control information generated with one or more respective UE-specific non-transparent precoding parameters. The UE can prune the PDCCH candidates to identify at least one PDCCH candidate for decoding by generating the log-likelihood ratio (LLR) magnitudes of demodulated PDCCH candidates and calculating the mutual information based on the LLR magnitudes.

公开(公告)号：US11936581B2

公开(公告)日：2024-03-19

申请号：US17949382

申请日：2022-09-21

Applicant: QUALCOMM Incorporated

Inventor： Michael Levitsky ,  Assaf Touboul ,  Ran Berliner ,  Shay Landis ,  Lior Uziel

IPC: H04L5/00 ,  H04B17/364 ,  H04B17/373 ,  H04W72/04 ,  H04W72/0446

CPC classification number: H04L5/0048 ,  H04B17/364 ,  H04W72/0446

Abstract: Methods, systems, and devices for wireless communications are described. A base station may determine the subcarrier spacing and carrier frequency used by a user equipment (UE) for communicating with the base station. The base station may select a sounding reference signal (SRS) configuration for the UE that is based on the subcarrier spacing and carrier frequency used by the UE. The SRS configuration may define the temporal spacing between repetitions of the SRS. The base station may indicate the SRS configuration to the UE so that the UE transmits repetitions of the SRS according to the SRS configuration. The base station may measure the SRS repetitions from the UE to determine the Doppler frequency for the uplink channel. The base station may use the uplink Doppler frequency to select a demodulation reference signal (DMRS) configuration for the UE.

公开(公告)号：US11936579B2

公开(公告)日：2024-03-19

申请号：US17445326

申请日：2021-08-18

Applicant: QUALCOMM Incorporated

Inventor： Idan Michael Horn ,  Shay Landis ,  Ran Berliner

IPC: H04L5/00 ,  H04J1/02 ,  H04W72/044 ,  H04W24/10

CPC classification number: H04L5/0048 ,  H04J1/02 ,  H04W72/046 ,  H04W24/10

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit an indication of a capability to perform a beam refinement procedure that includes receiving multiple reference signals, via multiple beams using frequency division multiplexing, during a single reference signal burst. The UE may receive the multiple reference signals during the single reference signal burst using frequency division multiplexing. Numerous other aspects are provided.