公开(公告)号：WO2021248108A1

公开(公告)日：2021-12-09

申请号：PCT/US2021/036093

申请日：2021-06-07

Applicant: QUALCOMM INCORPORATED

Inventor： LIN, Yih-Hao ,  ZHANG, Xiaoxia ,  FERRARI, Lorenzo ,  YOO, Taesang ,  YERRAMALLI, Srinivas ,  MANOLAKOS, Alexandros ,  AKKARAKARAN, Sony ,  BAO, Jingchao

IPC: H04L5/00 ,  H04W64/00 ,  G01S5/10 ,  H04L5/001 ,  H04L5/0048 ,  H04W4/029 ,  H04W72/04

Abstract: Disclosed are techniques for wireless communication. In an aspect, a network node receives a reference signal comprising a plurality of time and frequency resources, the plurality of time and frequency resources spanning a plurality of disjoint bandwidth segments, the plurality of disjoint bandwidth segments being time aligned or having a known time offset with respect to each other, and determines a time of arrival (ToA) of the reference signal based on jointly processing the plurality of time and frequency resources of the reference signal across the plurality of disjoint bandwidth segments.

公开(公告)号：WO2021231786A1

公开(公告)日：2021-11-18

申请号：PCT/US2021/032326

申请日：2021-05-13

Applicant: QUALCOMM INCORPORATED

Inventor： ZHANG, Xiaoxia ,  LUO, Tao ,  SUN, Jing ,  NAM, Wooseok ,  WU, Qiang ,  YERRAMALLI, Srinivas ,  FAN, Zhifei ,  CHENDAMARAI KANNAN, Arumugam

IPC: H04L5/00 ,  H04L1/18 ,  H04L27/00 ,  H04W72/12 ,  H04L1/1819 ,  H04L1/1822 ,  H04L1/1835 ,  H04L1/1887 ,  H04L1/1896 ,  H04L27/0006 ,  H04L27/26025 ,  H04L5/0044 ,  H04L5/0053 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/1257 ,  H04W72/1268 ,  H04W72/14 ,  H04W8/24

Abstract: A configuration to allow for scheduling communication with a UE having associated characteristics based on a timing indication. The apparatus receives, from a UE, a timing indication associated with a bandwidth, a subcarrier spacing, or a waveform. The timing indication identifying a delay duration based on a processing timeline for the UE. The apparatus receives from the UE, or transmits to the UE, a first data channel having the bandwidth, the subcarrier spacing, or the waveform scheduled based on the timing indication. The first data channel is transmitted or received at a first time based on the timing indication.

公开(公告)号：WO2021211320A1

公开(公告)日：2021-10-21

申请号：PCT/US2021/025777

申请日：2021-04-05

Applicant: QUALCOMM INCORPORATED

Inventor： PRAKASH, Rajat ,  FERRARI, Lorenzo ,  YERRAMALLI, Srinivas ,  ZHANG, Xiaoxia ,  MANOLAKOS, Alexandros ,  FISCHER, Sven ,  EDGE, Stephen William

IPC: H04W64/00

Abstract: A wireless network including user equipment (UE) and base stations is configured to perform position determination with low latency and high availability within the Time-Sensitive Networking (TSN) framework. For example, the UE may be integrated as a sensor in a motion control system or similar applications. The UE and base stations are synchronized with the TSN clock, and are configured to perform positioning measurements at a specific time point within the TSN framework. The time point, for example, may be a global sampling point, at which all sensor nodes in the TSN framework perform position measurements. A location server may be provided with the positioning measurements or a position estimate from the UE and provide the position estimate to an external client, such as a motion controller in a motion control system.

公开(公告)号：WO2021163067A1

公开(公告)日：2021-08-19

申请号：PCT/US2021/017277

申请日：2021-02-09

Applicant: QUALCOMM INCORPORATED

Inventor： SUN, Jing ,  CHANDE, Vinay ,  CHENDAMARAI KANNAN, Arumugam ,  YERRAMALLI, Srinivas ,  ZHANG, Xiaoxia ,  LUO, Tao

IPC: H04W74/08 ,  H04W92/18

Abstract: Methods, systems, and devices for wireless communications are described. A first wireless device may receive a clear channel assessment trigger from a second wireless device, the clear channel assessment trigger associated with a data transmission by the second wireless device. The first wireless device may transmit, based at least in part on a result of a first clear channel assessment procedure, feedback information for the clear channel assessment trigger. The first wireless device may receive the data transmission based at least in part on the feedback information for the first clear channel assessment procedure. The first wireless device may transmit, based at least in part on a result of a second clear channel assessment procedure, feedback information for the data transmission, wherein the first clear channel assessment procedure has a first duration that is longer than a second duration for the second clear channel assessment procedure.

公开(公告)号：WO2021158836A1

公开(公告)日：2021-08-12

申请号：PCT/US2021/016691

申请日：2021-02-05

Applicant: QUALCOMM INCORPORATED

Inventor： SUN, Jing ,  CHANDE, Vinay ,  KANNAN, Arumugam Chendamarai ,  YERRAMALLI, Srinivas ,  ZHANG, Xiaoxia ,  LUO, Tao ,  DAMNJANOVIC, Aleksandar

IPC: H04W74/08

Abstract: Methods related to wireless communications systems and transmissions in an unlicensed radio frequency band of a shared spectrum are provided. A device determines whether one or more criteria are satisfied for accessing an unlicensed band of a shared spectrum without performing a listen-before-talk (LBT). The device transmits a communication signal in the unlicensed band without performing LBT in response to determining that the one or more criteria are satisfied.

公开(公告)号：WO2021087504A1

公开(公告)日：2021-05-06

申请号：PCT/US2020/070622

申请日：2020-10-06

Applicant: QUALCOMM INCORPORATED

Inventor： NAM, Wooseok ,  SUN, Jing ,  LUO, Tao ,  ZHANG, Xiaoxia ,  FAN, Zhifei ,  YERRAMALLI, Srinivas ,  PARK, Sungwoo ,  REDDY, Akula ,  ZEWAIL, Ahmed Abdelaziz Ibrahim Abdelaziz

IPC: H04L5/00 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station (BS), an indication of a plurality of sets of slot format indicator parameters. The UE may receive, from the BS, a communication that identifies a set of slot format indicator parameters from the plurality of sets of slot format indicator parameters. Numerous other aspects are provided.

公开(公告)号：WO2021087146A1

公开(公告)日：2021-05-06

申请号：PCT/US2020/058011

申请日：2020-10-29

Applicant: QUALCOMM INCORPORATED

Inventor： ZEWAIL, Ahmed Abdelaziz Ibrahim ,  SUN, Jing ,  ZHANG, Xiaoxia ,  LUO, Tao ,  YERRAMALLI, Srinivas ,  FAN, Zhifei ,  NAM, Wooseok ,  PARK, Sungwoo ,  REDDY, Akula

IPC: H04L27/26

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device may identify, for an initial slot of a periodic interval, a number of symbols included in the initial slot and a length of cyclic prefixes used for the symbols included in the initial slot based on a subcarrier spacing that is configured for wireless communication. The length of a first set of cyclic prefixes may be based on a length of a cyclic prefix calculated for an initial symbol of the initial slot at the configured subcarrier spacing. The wireless device may perform communications based on the determined number of symbols and length of cyclic prefixes included in the initial slot. Performing communications may include allocating resources based on a length of the cyclic prefixes used for the symbols included in the initial slot.

公开(公告)号：WO2021050262A1

公开(公告)日：2021-03-18

申请号：PCT/US2020/047798

申请日：2020-08-25

Applicant: QUALCOMM INCORPORATED

Inventor： YERRAMALLI, Srinivas ,  ZHANG, Xiaoxia ,  AKKARAKARAN, Sony ,  SUN, Jing ,  YOO, Taesang

IPC: H04W64/00 ,  H04W16/14 ,  H04L5/00

Abstract: Methods, systems, and devices for transmitting a positioning reference signal over a channel within a window including a set of positioning reference signal transmission opportunities. A device may identify the window and perform a channel access procedure to access the channel during the window. Based on performing the channel access procedure, the device may obtain access to the channel and determine that a portion of the positioning reference signal transmission opportunities are remaining within the window. The device may transmit a positioning reference signal during one or more of the remaining positioning reference signal transmission opportunities. In some cases, the device may refrain from transmitting a positioning reference signal during a portion of a positioning reference signal transmission opportunity even if the device gains access to the channel during that portion of the positioning reference signal transmission opportunity.

公开(公告)号：WO2020264027A1

公开(公告)日：2020-12-30

申请号：PCT/US2020/039428

申请日：2020-06-24

Applicant: QUALCOMM INCORPORATED

Inventor： AKKARAKARAN, Sony ,  SUN, Jing ,  ZHANG, Xiaoxia ,  LUO, Tao ,  MONTOJO, Juan ,  CHENDAMARAI KANNAN, Arumugam ,  YERRAMALLI, Srinivas ,  GAAL, Peter ,  CHEN, Wanshi

IPC: H04L5/00 ,  H04L27/26

Abstract: Methods, systems, and devices for synchronization signal block (SSB) design are described to enable a base station to configure and transmit an SSB with a peak to average power ratio (PAPR) below a threshold. A low-PAPR SSB configuration may include a primary synchronization signal (PSS), a physical broadcast channel (PBCH), and a secondary synchronization signal (SSS). A user equipment (UE) may use the low-PAPR SSB configuration to monitor for and decode the SSB and begin communications with the base station. A low-PAPR SSB configuration may indicate available PSS sequences and lengths. A low-PAPR SSB configuration may also indicate multiplexing and symbol arrangements for a PBCH, DMRS, and SSS, and low-PAPR communications methods. A configuration may further indicate reference signal configurations, information for different communication types, subcarrier spacing, a number of symbols of an SSB, or a number of available SSBs and associated groups.

公开(公告)号：WO2020263507A1

公开(公告)日：2020-12-30

申请号：PCT/US2020/035588

申请日：2020-06-01

Applicant: QUALCOMM INCORPORATED

Inventor： YERRAMALLI, Srinivas ,  CHENDAMARAI KANNAN, Arumugam ,  CHANDE, Vinay ,  AKKARAKARAN, Sony ,  ZHANG, Xiaoxia ,  LUO, Tao ,  PARK, Sungwoo ,  AWONIYI-OTERI, Olufunmilola Omolade ,  KHOSHNEVISAN, Mostafa ,  CHAKRABORTY, Kaushik

IPC: H04W74/08

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device, such as a base station or a user equipment, may identify an energy detection threshold for a sensing beam associated with a channel access procedure, such as a listen before talk (LBT) procedure. The wireless device may also identify a set of transmit power parameters for one or more transmit beams. The wireless device may determine a degree of overlap between a coverage area of one or more transmit beams and a coverage area of the sensing beam. The wireless device may adjust the set of transmit power parameters, the energy detection threshold, or a combination thereof based on the degree of overlap. The wireless device may perform the channel access procedure based on the determining, the adjusting, or both.