公开(公告)号：US20210360370A1

公开(公告)日：2021-11-18

申请号：US17319339

申请日：2021-05-13

Applicant: QUALCOMM Incorporated

Inventor： Jay Kumar SUNDARARAJAN ,  Taesang YOO ,  Naga BHUSHAN ,  Alexandros MANOLAKOS ,  Weimin DUAN ,  Krishna Kiran MUKKAVILLI ,  Tingfang JI

IPC: H04W4/029 ,  H04W24/08 ,  H04L5/00 ,  G01S5/10

Abstract: In an embodiment, a first node (e.g., a UE or a BS) performs a channel response measurement on a reference signal for positioning (e.g., UL reference signal such as SRS for positioning, or a DL PRS). The first node determines, for each of a plurality of peaks detected within the channel response measurement, peak-specific information comprising at least peak magnitude data that is based on a peak magnitude relative to a reference value. The first node reports the peak-specific information for the plurality of peaks to a second node (e.g., a BS, UE, or LMF). The second node receives the peak-specific information, and determines a positioning estimate for a UE based on the peak-specific information.

公开(公告)号：US20210328737A1

公开(公告)日：2021-10-21

申请号：US17221581

申请日：2021-04-02

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Sony AKKARAKARAN ,  Guttorm Ringstad OPSHAUG

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

Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) receives at least one positioning reference signal (PRS) resource from a reference transmission-reception point (TRP) and one or more neighboring TRPs, and processes the at least one PRS resource during a time window, wherein a length of the time window is less than or equal to an integer number of orthogonal frequency division multiplexing (OFDM) symbols of the at least one PRS resource that the UE is capable of processing, buffering, or both within the time window.

公开(公告)号：US20210320773A1

公开(公告)日：2021-10-14

申请号：US17205838

申请日：2021-03-18

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Arash MIRBAGHERI ,  Guttorm Ringstad OPSHAUG

IPC: H04L5/00 ,  G01S5/02 ,  H04W16/28 ,  H04W24/10 ,  H04W64/00

Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) receives a positioning reference signal (PRS) configuration for at least a first transmission-reception point (TRP), the PRS configuration including one or more repetitions of one or more PRS resources within a PRS resource set of a PRS instance associated with the TRP, beam sweeps one or more receive beams within the PRS instance based on a number of the one or more repetitions being greater than a number of repetitions of the one or more PRS resources needed to meet an accuracy requirement, and beam sweeps the one or more receive beams across a plurality of PRS instances associated with the TRP based on the number of the one or more repetitions not being greater than the number of repetitions of the one or more PRS resources needed to meet the accuracy requirement.

公开(公告)号：US20210314800A1

公开(公告)日：2021-10-07

申请号：US17127360

申请日：2020-12-18

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Sony AKKARAKARAN ,  Guttorm Ringstad OPSHAUG ,  Arash MIRBAGHERI

IPC: H04W24/10 ,  H04L5/00 ,  H04W72/04 ,  H04L12/24

Abstract: In an aspect, a UE receives, from a network entity, a configuration of PRS or SRS-P resources for a positioning session, receives a configuration of at least one BWP from a serving BS, identifies a time-domain period for the positioning session where a set of parameters associated with the at least one BWP is to remain constant to achieve a first positioning accuracy requirement. The UE either performs positioning measurements on one or more of the PRS resources during the positioning session or transmits on one or more of the SRS-P resources during the positioning session. The UE determines an active BWP transition during the time-domain period from a first BWP to a second BWP that is associated with one or more changes to the set of parameters.

公开(公告)号：US20210281373A1

公开(公告)日：2021-09-09

申请号：US17188565

申请日：2021-03-01

Applicant: QUALCOMM Incorporated

Inventor： Le LIU ,  Alberto RICO ALVARINO ,  Peter GAAL ,  Alexandros MANOLAKOS ,  Wanshi CHEN

IPC: H04L5/00 ,  H04B7/0413 ,  H04B7/06 ,  H04B7/0456 ,  H04L25/02

Abstract: Aspects directed towards sounding reference signal (SRS) antenna switching are disclosed. In one example, an SRS configuration is received from a network in which at least four antennas of a scheduled entity are configured based on the SRS configuration. Here, the SRS configuration configures at least one antenna to simultaneously support SRS antenna switching and an uplink (UL) multiple-input multiple-output (MIMO) communication. An SRS communication is then transmitted according to the SRS configuration. In another example, a transmission capability reporting is received from a scheduled entity comprising at least four antennas. A determination is then made of whether the scheduled entity may simultaneously support SRS antenna switching and an UL MIMO communication. An SRS configuration is then generated for the scheduled entity based on the determination in which a default SRS configuration configures at least one antenna to simultaneously support the SRS antenna switching and the UL MIMO communication.

公开(公告)号：US20210242991A1

公开(公告)日：2021-08-05

申请号：US17164316

申请日：2021-02-01

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Sony AKKARAKARAN ,  Sven FISCHER

IPC: H04L5/00 ,  H04W28/26

Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) receives, from a serving base station, a medium access control control element (MAC-CE) indicating activation or deactivation of a semi-persistent (SP) sounding reference signal (SRS)-for-positioning, wherein a reserved bit in the MAC-CE or a logical channel identifier (LCID) of a MAC subheader of the MAC-CE indicates the activation or deactivation of the SP SRS-for-positioning, and transmits the SP SRS-for-positioning on one or more SRS resources configured for the UE, the SP SRS-for-positioning having transmission parameters adopted from a spatial relation reference signal for the SP SRS-for-positioning.

公开(公告)号：US20210226821A1

公开(公告)日：2021-07-22

申请号：US17259866

申请日：2019-07-19

Applicant: QUALCOMM Incorporated

Inventor： Le LIU ,  Alberto RICO ALVARINO ,  Alexandros MANOLAKOS ,  Wanshi CHEN ,  Ayan SENGUPTA ,  Xiao Feng WANG ,  Chao WEI

IPC: H04L25/02 ,  H04L5/00 ,  H04W74/08 ,  H04W76/27 ,  H04L27/26 ,  H04W72/04

Abstract: Certain aspects of the present disclosure provide techniques for sounding reference signal (SRS) resource configuration and processing enhancements. A method generally includes receiving, from the network, signaling indicating a sounding reference signal (SRS) configuration allocating a plurality of symbols for SRS transmissions within an uplink (UL) subframe, detecting a collision between at least one of the allocated SRS symbols and another type of UL transmission, and taking one or more actions regarding the SRS transmissions, based on the detection of the collision.

公开(公告)号：US20210194564A1

公开(公告)日：2021-06-24

申请号：US16877005

申请日：2020-05-18

Applicant: QUALCOMM Incorporated

Inventor： Huilin XU ,  Alexandros MANOLAKOS ,  Weimin DUAN ,  June NAMGOONG ,  Muhammad Sayed Khairy ABDELGHAFFAR

IPC: H04B7/08 ,  H04W72/12 ,  H04L5/14 ,  H04L25/02 ,  H04L5/00 ,  H04W72/04 ,  H04W76/11 ,  H04W24/08 ,  H04W16/28

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive scheduling information that schedules a physical downlink shared channel (PDSCH) communication for the UE; and select a downlink beam for reception of the PDSCH communication from a set of usable downlink beams associated with an uplink beam to be used by the UE for uplink transmission in one or more symbols in which the PDSCH communication is scheduled. Numerous other aspects are provided.

公开(公告)号：US20210105749A1

公开(公告)日：2021-04-08

申请号：US17028714

申请日：2020-09-22

Applicant: QUALCOMM Incorporated

Inventor： Yan ZHOU ,  Tao LUO ,  Ruhua HE ,  Raghu Narayan CHALLA ,  Yong LI ,  Parisa CHERAGHI ,  Peter GAAL ,  Juan MONTOJO ,  Alexandros MANOLAKOS ,  Alexei Yurievitch GOROKHOV

IPC: H04W72/04 ,  H04W48/12 ,  H04L5/00 ,  H04W76/27 ,  H04W72/12

Abstract: A UE determines a default beam for a physical downlink shared channel (PDSCH) that is independent of a beam for a physical downlink control channel (PDCCH). The default PDSCH beam may be determined based on information received in a medium access control-control element (MAC-CE), or a radio resource control (RRC) message, a downlink control information (DCI). The default PDSCH beam may be determined based on at least one active transmission configuration indication (TCI) state for the PDSCH.

公开(公告)号：US20210105040A1

公开(公告)日：2021-04-08

申请号：US16910607

申请日：2020-06-24

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Sony AKKARAKARAN

IPC: H04B1/713 ,  H04L5/00 ,  H04W72/04

Abstract: In an aspect, a UE receives an SRS configuration that indicates, for at least one frequency hop, an allocation of less than all subcarriers of a sounding bandwidth to SRS per OFDM symbol in a respective frequency hop. The UE transmits, to a BS in a first frequency hop, OFDM symbols with SRS across all subcarriers of a first sounding bandwidth associated with the first frequency hop. In another aspect, the UE receives an SRS configuration that indicates, for frequency hops associated with the same comb-type, a sequence of resource element offsets that is based on a number of OFDM symbols used in the respective frequency hop. The UE transmits OFDM symbols with SRS in accordance with the sequence of resource element offsets indicated by the SRS configuration for the respective frequency hop.