公开(公告)号：US20210105119A1

公开(公告)日：2021-04-08

申请号：US17062020

申请日：2020-10-02

Applicant: QUALCOMM Incorporated

Inventor： Gabi SARKIS ,  Kapil GULATI ,  Alexandros MANOLAKOS ,  Shuanshuan WU ,  Sudhir Kumar BAGHEL ,  Tien Viet NGUYEN

IPC: H04L5/00 ,  H04W72/12 ,  H04L5/02

Abstract: Certain aspects of the present disclosure provide techniques for channel estimation for two-stage sidelink control using sidelink data channel demodulation reference signals (DMRS). A user equipment (UE) can transmit DMRS for the sidelink data channel. The UE may transmit the second stage of the sidelink control using antenna ports or a precoder used for the sidelink data channel. The receiving device may receive the DMRS, estimate the channel, and demodulate the second stage of the sidelink control based on the estimated channel. The receiving device may flexibly determine the DMRS to use for the estimation and demodulation.

公开(公告)号：US20210105116A1

公开(公告)日：2021-04-08

申请号：US17024118

申请日：2020-09-17

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Weimin DUAN ,  Muhammad Sayed Khairy ABDELGHAFFAR ,  Pavan Kumar VITTHALADEVUNI ,  Krishna Kiran MUKKAVILLI

IPC: H04L5/00 ,  H04W72/04

Abstract: Certain aspects of the present disclosure provide techniques for fast adaptation of transmission properties of sounding reference signal (SRS) resource sets. A method that may be performed by a user equipment (UE) includes receiving sounding reference signal (SRS) configuration information, configuring the UE with one or more SRS resource sets, wherein each of the one or more SRS resource sets comprises one or more SRS resources; receiving signaling comprising a field indicating which of the one or more SRS resources in the one or more SRS resource sets are active and which of the one or more SRS resources in the one or more SRS resources sets are inactive; and transmitting one or more SRSs using only the one or more SRS resources that are active.

公开(公告)号：US20210092560A1

公开(公告)日：2021-03-25

申请号：US17031430

申请日：2020-09-24

Applicant: QUALCOMM Incorporated

Inventor： Jingchao BAO ,  Sony AKKARAKARAN ,  Alexandros MANOLAKOS ,  Tao LUO

IPC: H04W4/029 ,  G01S5/10

Abstract: Disclosed are techniques for wireless communication. In an aspect, a network entity sends, to a user equipment (UE), a notification of a plurality of direct current (DC) tones of a plurality of network nodes configured to transmit a plurality of positioning signals to the UE, and receives, from the UE, a position of the UE, a plurality of positioning related measurements of the plurality of positioning signals, or any combination thereof. In an aspect, a UE receives, from a network entity, a notification of a plurality of DC tones of a plurality of network nodes, receives, from the plurality of network nodes, a plurality of positioning signals, and determines a plurality of positioning related measurements of the plurality of positioning signals based on locations of the plurality of DC tones indicated in the notification.

公开(公告)号：US20210076375A1

公开(公告)日：2021-03-11

申请号：US16949970

申请日：2020-11-23

Applicant: QUALCOMM Incorporated

Inventor： Heechoon LEE ,  Joseph Binamira SORIAGA ,  Jing SUN ,  Jing JIANG ,  Wanshi CHEN ,  Peter GAAL ,  Alexandros MANOLAKOS

IPC: H04W72/04 ,  H04W72/12

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive control information for a communication of the UE; and determine whether the control information is associated with a slot-based control configuration or a non-slot-based control configuration based at least in part on the control information; or determine whether the communication is associated with a slot-based data configuration or a non-slot-based data configuration. Numerous other aspects are provided.

公开(公告)号：US20210075573A1

公开(公告)日：2021-03-11

申请号：US16795338

申请日：2020-02-19

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Alexander DOROSENCO ,  Jay KING ,  Joseph Binamira SORIAGA ,  Joseph Patrick BURKE

IPC: H04L5/00 ,  H04W72/04

Abstract: Disclosed are techniques for reporting a group delay-per-frequency lookup table for transmit and receive beams. In an aspect, a user equipment (UE) receives, from a transmission-reception point (TRP), a first downlink reference signal on at least one downlink reference signal resource using a downlink receive beam, transmits, to the TRP, an uplink reference signal on at least one uplink reference signal resource using an uplink transmit beam, determines a parameter representing a difference between a reception time of the first downlink reference signal and a transmission time of the uplink reference signal, transmit the parameter to a network entity, and transmits, to the network entity, a first lookup table or an identifier of the first lookup table, wherein the first lookup table represents per-frequency group delay information for the downlink receive beam and/or the uplink transmit beam.

公开(公告)号：US20210067220A1

公开(公告)日：2021-03-04

申请号：US17002639

申请日：2020-08-25

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Sayed Khairy ABDELGHAFFAR ,  Alexandros MANOLAKOS ,  Huilin XU ,  Wooseok NAM ,  Peter Pui Lok ANG

IPC: H04B7/06 ,  H04B7/0413 ,  H04L5/00

Abstract: Certain aspects of the present disclosure provide techniques for channel state information measurement adaptation to maximum multiple-input multiple-output layers. A method that may be performed by a user equipment (UE) includes receiving a first channel state information (CSI) report configuration including one or more first CSI reference signal (CSI-RS) resources, wherein each first CSI-RS resource comprises a first resource set; determining, based on an indication of a maximum number of multiple-input multiple-output (MIMO) layers that the UE is expected to receive, a first resource subset on which to report first CSI; and reporting the first CSI to a base station (BS), wherein the first CSI is based on the determined first resource subset.

公开(公告)号：US20210006380A1

公开(公告)日：2021-01-07

申请号：US16904401

申请日：2020-06-17

Applicant: QUALCOMM Incorporated

Inventor： Yan ZHOU ,  Tao LUO ,  Alexandros MANOLAKOS ,  Joseph Binamira SORIAGA

IPC: H04L5/00 ,  H04B7/01 ,  H04W72/04 ,  H04W56/00 ,  H04B7/06

Abstract: Certain aspects of the present disclosure provide techniques for configuring reference signals. A method that may be performed by a user equipment (UE) includes receiving a control message indicating a first quasi co-location (QCL) for an aperiodic-tracking reference signal (A-TRS), the A-TRS being associated with a periodic-tracking reference signal (P-TRS), determining a second QCL for the P-TRS based on the first QCL for the A-TRS, setting a receive beam for reception of the P-TRS based on the second QCL of the P-TRS, and decoding one or more frames based on channel statistics estimated via the P-TRS received via the receive beam.

公开(公告)号：US20200322026A1

公开(公告)日：2020-10-08

申请号：US16830053

申请日：2020-03-25

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Wei YANG ,  Gokul SRIDHARAN ,  Yi HUANG

IPC: H04B7/06 ,  H04B7/0456 ,  H04W72/12 ,  H04W72/14 ,  H04W76/27 ,  H04W80/02 ,  H04L1/18 ,  H04W8/24 ,  H04B1/713

Abstract: Aspects are provided allowing UEs with non-coherent or partially coherent antennas to re-interpret TPMI received in DCI into a set of TPMIs corresponding to different subbands. The UE receives a TPMI associated with at least one first antenna and at least one second antenna which are non-coherent with each other, and the UE determines a set of TPMIs including a first and second TPMI based on the received TPMI. The set of TPMIs include at least one TPMI different from the received TPMI. The UE transmits, based on the first TPMI, from the at least one first antenna within at least one first subband. The UE also transmits, based on the second TPMI, from the at least one second antenna within at least one second subband different from the at least one first subband. Thus, full power transmission based on re-interpreted TPMI with reduced DCI overhead may result.

公开(公告)号：US20200236641A1

公开(公告)日：2020-07-23

申请号：US16747348

申请日：2020-01-20

Applicant: QUALCOMM Incorporated

Inventor： Sony AKKARAKARAN ,  Wei YANG ,  Alexandros MANOLAKOS

IPC: H04W56/00 ,  H04B1/12 ,  H04B1/10 ,  H04L5/00 ,  H04L27/26

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may filter a group of uplink reference signals so that filtering delays of the group of uplink reference signals are consistent based at least in part on a filtering constraint for the group of uplink reference signals; and transmit the group of uplink reference signals. Numerous other aspects are provided.

公开(公告)号：US20200229124A1

公开(公告)日：2020-07-16

申请号：US16721500

申请日：2019-12-19

Applicant: QUALCOMM Incorporated

Inventor： Joseph Binamira SORIAGA ,  Alexandros MANOLAKOS ,  Naga BHUSHAN ,  Charles Edward WHEATLEY ,  Tingfang JI ,  Jay Kumar SUNDARARAJAN

IPC: H04W64/00 ,  H04L12/26 ,  H04W4/02 ,  G01S5/14 ,  G01S5/02 ,  H04L12/841

Abstract: Disclosed are techniques for determining locations of reference nodes. In an aspect, an apparatus transmits a request to a first reference node to perform a first round-trip-time (RTT) procedure with a second reference node, determines a first distance between the first reference node and the second reference node based on the RTT procedure, determines relative locations of the first and second reference nodes with respect to each other, and determines absolute locations of the first and second reference nodes from their relative locations based on at least one of the first and second reference nodes having a known absolute location and at least one known angle-of-arrival (AoA) or angle-of-departure (AoD) of at least one reference signal.