公开(公告)号：US20190021097A1

公开(公告)日：2019-01-17

申请号：US16031897

申请日：2018-07-10

Applicant: QUALCOMM Incorporated

Inventor： Chong LI ,  Jay Kumar SUNDARARAJAN ,  Jing JIANG ,  Seyong PARK

IPC: H04W72/12 ,  H04W72/04 ,  H04B1/7143

CPC classification number: H04W72/12 ,  H04B1/692 ,  H04B1/713 ,  H04B1/7143 ,  H04B2001/6908 ,  H04J13/0074 ,  H04L1/1819 ,  H04W72/0413 ,  H04W72/042

Abstract: Aspects of the present disclosure provide a mechanism for utilizing uplink hopping patterns for HARQ transmissions. Each hopping pattern may include a sequence of different frequency resources or a sequence of different scrambling sequences for a user equipment (UE) to utilize over time for HARQ transmissions. Each of the hopping patterns may further be associated with a time index mode in which the hopping pattern is applied to time resources such that each time resource within a consecutive sequence of time resources is mapped to a different frequency resource or scrambling sequence. The base station may select a hopping pattern for a particular UE and transmit an indication of the selected hopping pattern to the UE.

公开(公告)号：US20180367271A1

公开(公告)日：2018-12-20

申请号：US16008908

申请日：2018-06-14

Applicant: QUALCOMM Incorporated

Inventor： Seyong PARK ,  Renqiu WANG ,  Yi HUANG ,  Hao XU ,  Peter GAAL

IPC: H04L5/00

Abstract: Various aspects described herein relate to techniques for uplink reference signal sequence design in wireless communications systems. A method, a computer-readable medium, and an apparatus are provided. In an aspect, the method includes identifying a set of sequences to include at least a base sequence, a reverse order sequence of the base sequence, a complex conjugate sequence of the base sequence, or a reverse order complex conjugate sequence of the base sequence, and transmitting an uplink reference signal based on at least one of the sequences in the set. The techniques described herein may apply to different communications technologies, including 5th Generation (5G) New Radio (NR) communications technology.

公开(公告)号：US20180227101A1

公开(公告)日：2018-08-09

申请号：US15713270

申请日：2017-09-22

Applicant: QUALCOMM Incorporated

Inventor： Seyong PARK ,  Wanshi CHEN ,  Wei ZENG ,  Alexandros MANOLAKOS ,  Hao XU ,  Renqiu WANG ,  Yi HUANG ,  Peter GAAL ,  Naga BHUSHAN

IPC: H04L5/00 ,  H04W72/04 ,  H04W52/36

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for Uplink MIMO reference signals and data transmission schemes communications systems operating according to 5G technologies. For example, one or more techniques for enabling PRG selection and conveying that selection are provided. In some cases, precoder selection techniques may be provided. Further, in some cases, techniques may be provided to distinguish OFDM and DFT-s-OFDM by using different ports.

公开(公告)号：US20180145783A1

公开(公告)日：2018-05-24

申请号：US15661256

申请日：2017-07-27

Applicant: QUALCOMM INCORPORATED

Inventor： Seyong PARK ,  Muhammad ABDELGHAFFAR ,  Wei ZENG ,  Jing JIANG ,  Joseph Binamira SORIAGA ,  Tingfang JI

IPC: H04J11/00 ,  H04L25/03

CPC classification number: H04J11/0023 ,  H04L25/03159 ,  H04L25/03828 ,  H04L25/03834 ,  H04L27/2634 ,  H04L2025/03414

Abstract: Waveforms may be shaped in a wireless communications device by processing head tones of a multi-tone carrier using a head tone waveform shaping characteristic to provide a first sub-symbol, processing tail tones of the multi-tone carrier using a tail tone waveform shaping characteristic to provide a second sub-symbol, and processing center tones of the multi-tone carrier using a center tone waveform shaping characteristic to provide a third sub-symbol. The first, second, and third waveform shaping characteristics may be different from each other, i.e., the waveform shaping may be asymmetric. The first, second, and third sub-symbols may be combined to provide an output symbol.

公开(公告)号：US20180097724A1

公开(公告)日：2018-04-05

申请号：US15482510

申请日：2017-04-07

Applicant: QUALCOMM Incorporated

Inventor： Seyong PARK ,  Wei ZENG ,  Haitong SUN ,  Joseph Binamira SORIAGA ,  Tingfang JI

IPC: H04L12/753 ,  H04B1/713 ,  H04L5/00 ,  H04L25/03 ,  H04J13/12 ,  H04W72/04 ,  H04B7/212 ,  H04J13/00 ,  G06F17/22

CPC classification number: H04L45/48 ,  G06F17/2252 ,  G06F17/2258 ,  H04B1/713 ,  H04B7/2121 ,  H04J13/0025 ,  H04J13/0074 ,  H04J13/12 ,  H04L5/0021 ,  H04L25/03331 ,  H04L27/26 ,  H04W72/0446

Abstract: Various additional and alternative aspects are described herein. In some aspects, the present disclosure provides a method of communication by an apparatus. The method includes selecting one or more resources for transmitting data of a first data stream based on an acyclic graph. The selected resources conform to the acyclic graph comprising data streams at odd levels of the acyclic graph and resources at even levels of the acyclic graph. The acyclic graph includes edges between each level of the acyclic graph. The edges connect the resources allocated to each data stream. The method further includes transmitting the data of the first data stream on the selected one or more resources.

公开(公告)号：US20240089766A1

公开(公告)日：2024-03-14

申请号：US18512740

申请日：2023-11-17

Applicant: QUALCOMM Incorporated

Inventor： Yuchul KIM ,  Huilin XU ,  Hwan Joon KWON ,  Peter Pui Lok ANG ,  Jay Kumar SUNDARARAJAN ,  Krishna Kiran MUKKAVILLI ,  Yeliz TOKGOZ ,  Jing LEI ,  Tingfang JI ,  Ravi AGARWAL ,  Seyong PARK

IPC: H04W24/08 ,  H04L1/08 ,  H04L1/1607 ,  H04W72/23 ,  H04W72/51

CPC classification number: H04W24/08 ,  H04L1/08 ,  H04L1/1614 ,  H04W72/23 ,  H04W72/51

Abstract: Methods, systems, and devices for wireless communications are described. A communication device, otherwise known as a user equipment (UE) may transmit capability information including an indication of a discontinuous monitoring delay period. The UE may receive a message including an indication to adjust monitoring of a physical downlink control channel (PDCCH), and monitor for the PDCCH during the discontinuous monitoring delay period. The UE may adjust monitoring for the PDCCH following the discontinuous monitoring delay period during a temporal period based on the received indication to adjust monitoring of the PDCCH. In some examples, at least one of physical downlink shared channel (PDSCH) reception, downlink reference signal monitoring, uplink reference signal transmissions, and channel reporting is enabled during the temporal period while monitoring of the PDCCH is adjusted.

公开(公告)号：US20240012129A1

公开(公告)日：2024-01-11

申请号：US18018535

申请日：2021-09-01

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Alexandros MANOLAKOS ,  Seyong PARK

IPC: G01S13/74 ,  H04W64/00

CPC classification number: G01S13/74 ,  H04W64/00

Abstract: Downlink and uplink Time Difference of Arrival (TDOA) is performed using Reference Signal Time Difference (RSTD) measurements. The transmissions and measurements of positioning reference signals (PRS) are configured to mitigate or eliminate network synchronization errors which conventionally limit positioning accuracy of TDOA. The synchronization errors are mitigated using inter-base station PRS, and transmission of the PRS in response to receipt of the initial reference signal. For DL TDOA, a reference base station may transmit PRS to the user equipment (UE) and neighboring base station. In response, the neighboring base station transmits PRS to the UE. The RSTD may be determined as the difference in the time of reception of the PRS signals received at the UE after removal of the total delay for transmitting the PRS by the neighboring base station, including propagation time and processing time. The RSTD for UL TDOA may be determined in a similar manner.

公开(公告)号：US20230408677A1

公开(公告)日：2023-12-21

申请号：US18251205

申请日：2021-12-21

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Alexandros MANOLAKOS ,  Seyong PARK

IPC: G01S13/87 ,  G01S13/00 ,  G01S7/00

CPC classification number: G01S13/878 ,  G01S13/003 ,  G01S7/006 ,  G01S2013/464

Abstract: Techniques are disclosed for determining an object's location by using a Reconfigurable Intelligent Surface (RIS) to aid in RF sensing. Radar techniques can be used in which one or more base stations act as a transmitter and a receiving device acts as a receiver in a bistatic or multi-static radar configuration where an RIS directs signals transmitted by the one or more base stations to the receiving device. By comparing the time a line-of-sight (LOS) signal (redirected to the receiving device by the RIS) is received by the receiving device with that of an echo signal (redirected to the receiving device by the RIS) from a reflection of an RF signal from the object, a position of the object can be determined. Depending on desired functionality, this position can be determined by the receiving device or by a location server or other network entity.

公开(公告)号：US20230072789A1

公开(公告)日：2023-03-09

申请号：US18055363

申请日：2022-11-14

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Seyong PARK

IPC: H04L5/00 ,  H04W74/08 ,  H04W76/11 ,  H04W56/00 ,  H04W72/04 ,  H04L5/10

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.

公开(公告)号：US20220283262A1

公开(公告)日：2022-09-08

申请号：US17195097

申请日：2021-03-08

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Seyong PARK ,  Weimin DUAN ,  Xiaoxin ZHANG

IPC: G01S7/00 ,  H04W8/24 ,  G01S7/02

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.