公开(公告)号：US20200305027A1

公开(公告)日：2020-09-24

申请号：US16896171

申请日：2020-06-08

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  June NAMGOONG ,  Yang YANG ,  Jing JIANG

IPC: H04W28/20 ,  H04W72/04 ,  H04L5/00 ,  H04W72/08 ,  H04W72/12

Abstract: A method at a scheduling entity might include determining that interference is present from a neighboring scheduling entity, which implements a second subcarrier spacing that is different from a first subcarrier spacing of the scheduling entity. The scheduling entity might request the neighboring scheduling entity to negotiate a bandwidth group (BWG), where the BWG is a bandwidth occupied by downlink subcarriers within which a transmission parameter is maintained. The method might include negotiating a bandwidth of the bandwidth group and transmitting, if negotiating is successful, downlink data to a scheduled entity served by the scheduling entity according to the negotiated bandwidth. The transmission parameter might be a precoder, rank, modulation order, power inside each BWG, or numerology. The numerology might be scalable and might be a combination of subcarrier spacing and cyclic prefix (CP) overhead. The subcarrier spacing might be scaled while keeping constant the CP overhead as a percentage of a symbol duration.

公开(公告)号：US20200236718A1

公开(公告)日：2020-07-23

申请号：US16745198

申请日：2020-01-16

Applicant: QUALCOMM Incorporated

Inventor： Jay Kumar SUNDARARAJAN ,  Alexandros MANOLAKOS ,  Tingfang JI ,  Joseph Binamira SORIAGA

IPC: H04W74/08 ,  H04W64/00 ,  H04W24/10 ,  H04L27/26 ,  H04L5/00 ,  H04W56/00

Abstract: Disclosed are techniques for measuring round trip times (RTTs) between a user equipment (UE) and a plurality of transmission-reception points (TRPs). In an aspect, the UE receives a positioning configuration message from a TRP, measures a time of arrival (TOA) of each of a plurality of positioning signals from the plurality of TRPs, and transmits, to the TRP, a RACH positioning Message A on uplink resources defined in the positioning configuration message, and receives, from the TRP, a RACH positioning Message B subsequent to transmitting the RACH positioning Message A, wherein the RACH positioning Message A includes a first plurality of positioning measurements corresponding to the plurality of TRPs, the RACH positioning Message B includes a second plurality of positioning measurements corresponding to the plurality of TRPs, or any combination thereof.

公开(公告)号：US20200229010A1

公开(公告)日：2020-07-16

申请号：US16740246

申请日：2020-01-10

Applicant: QUALCOMM Incorporated

Inventor： Joseph Binamira SORIAGA ,  Alexandros MANOLAKOS ,  Sony AKKARAKARAN ,  Naga BHUSHAN ,  Allen Minh-Triet TRAN ,  Charles Edward WHEATLEY ,  Tao LUO ,  Tingfang JI

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

Abstract: Disclosed are techniques for determining a line-of-sight (LOS) path between a transmitter and a wireless device in a wireless communications network. In an aspect, a wireless device receives, from the transmitter, a first reference signal transmitted on a first antenna port and a second reference signal transmitted on a second antenna port, the first reference signal having a first polarization and the second reference signal having a second polarization with known difference (e.g., perpendicular) to the first polarization, compares multi-path channels estimated from reception of the first reference signal and the second reference signal to multi-path channels expected from the first reference signal and the second reference signal when transmitted along the LOS path between the transmitter and the wireless device, and determines which path (if any) of the multi-path channels corresponds to the LOS path between the transmitter and the wireless device.

公开(公告)号：US20200221384A1

公开(公告)日：2020-07-09

申请号：US16726149

申请日：2019-12-23

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok ANG ,  Tingfang JI ,  Wanshi CHEN ,  Tao LUO ,  Alexei Yurievitch GOROKHOV ,  Aamod KHANDEKAR ,  Jafar MOHSENI ,  Wooseok NAM ,  Alexandros MANOLAKOS ,  Heechoon LEE ,  Huilin XU

IPC: H04W52/02 ,  H04W76/28 ,  H04L1/00 ,  H04L5/00 ,  H04L25/02 ,  H04W72/14

Abstract: Apparatus, methods, and computer-readable media for providing improved power efficiency during DRX wake-up are disclosed. An example method of wireless communication at a UE includes receiving a WUS from a base station while performing a DRX cycle, the WUS indicating data for transmission to the UE. The example method also includes at least one receiving a downlink reference signal or transmitting an uplink reference signal based on the WUS and prior to reception of the data, the uplink reference signal transmitted or the downlink reference signal received during an on-duration of the DRX cycle and in response to receiving the WUS. The example method also includes sending a CSI report to the base station based on the WUS and prior to the receiving of the data. The example method also includes receiving the data following the respective receiving or transmitting of the downlink reference signal or uplink reference signal.

公开(公告)号：US20200221311A1

公开(公告)日：2020-07-09

申请号：US16737862

申请日：2020-01-08

Applicant: QUALCOMM Incorporated

Inventor： Le LIU ,  Alberto RICO ALVARINO ,  Alexandros MANOLAKOS ,  Prashanth AKULA ,  Supratik BHATTACHARJEE ,  Qiang SHEN

IPC: H04W16/14 ,  H04W72/04 ,  H04W52/14 ,  H04L5/00 ,  H04L27/26

Abstract: Certain aspects of the present disclosure provide techniques for handling collisions between PUSCH and sounding reference signal (SRS) on additional SRS symbols in an uplink subframe using carrier aggregation. The techniques provide rules that a user equipment (UE) may apply to decide if and when to drop or apply power scaling to SRS or PUSCH transmissions scheduled on overlapping time resources.

公开(公告)号：US20200163100A1

公开(公告)日：2020-05-21

申请号：US16751189

申请日：2020-01-23

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Jing JIANG ,  Joseph Binamira SORIAGA ,  Krishna Kiran MUKKAVILLI ,  Peter Pui Lok ANG ,  Tingfang JI ,  Peter GAAL

IPC: H04W72/12 ,  H04L27/26 ,  H04L5/00

Abstract: Aspects of the present disclosure provide various wireless communication numerology designs that can maintain symbol boundary alignment while multiplexing different numerologies in wireless communication. The symbols may be scaled for different tone or subcarrier spacings while maintaining the symbol boundary alignment between different numerologies. Maintaining the symbol-boundary alignment between different numerologies enables symbol-level numerology multiplexing. The disclosed numerology designs enable low latency communication and improved interference management, and provide non-ambiguous symbol boundary timing reference for multiplexing different numerologies.

公开(公告)号：US20200154449A1

公开(公告)日：2020-05-14

申请号：US16679614

申请日：2019-11-11

Applicant: QUALCOMM Incorporated

Inventor： Sony AKKARAKARAN ,  Tao LUO ,  Alexandros MANOLAKOS

IPC: H04W72/10 ,  H04L5/00 ,  H04W72/04

Abstract: Disclosed are techniques for handling an overlap between a higher priority channel and a lower priority channel. In an aspect, a transmitter node detects an overlap between an allocation of a first set of resources of a wireless communication link for transmission of the lower priority channel and an allocation of a second set of resources of the wireless communication link for transmission of the higher priority channel, removes a subset of resources from the first set of resources to generate a removed subset of resources of the first set of resources and a remaining subset of resources of the first set of resources, and transmits, to a receiver node, the lower priority channel on the remaining subset of resources, wherein the higher priority channel is transmitted on the removed subset of resources, wherein the higher priority channel or the lower priority channel is a positioning reference signal.

公开(公告)号：US20200053754A1

公开(公告)日：2020-02-13

申请号：US16529129

申请日：2019-08-01

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Jing SUN ,  Xiaoxia ZHANG ,  Wanshi CHEN ,  Juan MONTOJO

IPC: H04W72/12 ,  H04W72/04 ,  H04L5/10 ,  H04L5/00

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive, when operating in a multiple link communication system, one or more downlink control information (DCI) messages scheduling one or more downlink communications. The user equipment may determine, based at least in part on the one or more DCI messages, whether a communication constraint is satisfied for the one or more downlink communications. The user equipment may determine a communication configuration for the one or more downlink communications based at least in part on whether the communication constraint is satisfied. The user equipment may receive, in the multiple link communication system, the one or more downlink communications based at least in part on the communication configuration. Numerous other aspects are provided.

公开(公告)号：US20200052950A1

公开(公告)日：2020-02-13

申请号：US16526804

申请日：2019-07-30

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Heechoon LEE ,  Makesh Pravin JOHN WILSON ,  Wanshi CHEN ,  Tao LUO

IPC: H04L27/26 ,  H04L5/00 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine that a phase tracking reference signal (PTRS) port is to be shared among a plurality of physical downlink shared channels (PDSCHs) transmitted by a plurality of transmit receive points (TRPs); receive PTRS pilot signals on one or more PDSCHs of the plurality of PDSCHs; and use the PTRS pilot signals for phase tracking estimation for the plurality of PDSCHs based at least in part on the determination that the PTRS port is to be shared among the plurality of PDSCHs. Numerous other aspects are provided.

公开(公告)号：US20200052866A1

公开(公告)日：2020-02-13

申请号：US16343538

申请日：2017-11-03

Applicant: Alexandros Manokakos ,  Chao Wei ,  Pavan Kumar Vitthaladevuni ,  Yu Zhang ,  Hao Xu ,  Wanshi Chen ,  QUALCOMM INCORPORATED

Inventor： Alexandros MANOLAKOS ,  Chao WEI ,  Pavan Kumar VITTHALADEVUNI ,  Yu ZHANG ,  Hao XU ,  Wanshi CHEN

IPC: H04L5/00 ,  H04B7/06 ,  H04L25/02 ,  H04W72/12

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for a UE to flexibly indicate a preferred precoding resource block group (PRG) size to a base station (e.g., an eNB).