公开(公告)号：US20210288775A1

公开(公告)日：2021-09-16

申请号：US17334374

申请日：2021-05-28

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Bilal SADIQ ,  Joseph Binamira SORIAGA ,  Muhammad Nazmul ISLAM ,  Juergen CEZANNE ,  Junyi LI

IPC: H04L5/00 ,  H04W24/10

Abstract: Disclosed are techniques for transmitting reference signals (RS) for positioning. A method comprises transmitting or providing an instruction to transmit a first set of RS to a user equipment (UE) in accordance with a first set of RS transmission parameters, receiving a report containing information indicating whether a measurement performed by the UE is limited by a signal-to-noise ratio (SNR) of the first set of RS or a bandwidth of the first set of RS, determining a second set of RS transmission parameters using the received report, wherein the second set of RS transmission parameters is different from the first set of RS transmission parameters, and transmitting a second set of RS to the UE in accordance with the second set of RS transmission parameters, or providing the second set of RS transmission parameters to a base station.

公开(公告)号：US20210242913A1

公开(公告)日：2021-08-05

申请号：US16996321

申请日：2020-08-18

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Weimin DUAN ,  Krishna Kiran MUKKAVILLI

IPC: H04B7/0456 ,  H04B7/06 ,  H04B7/0426 ,  H04W72/04

Abstract: A user equipment (UE) receives a maximum downlink (DL) Multiple-Input Multiple-Output (MIMO) layer configuration for DL communications, such as control signals or data signals, in one or more bandwidth parts (BWPs) and a positioning reference signal (PRS) configuration for receiving DL PRS. The UE receives DL PRS in an active BWP using a number of reception antennas based on, e.g., at least equal to, the maximum number of DL MIMO layers in the active bandwidth part. The UE may be configured to transmit uplink (UL) PRS, e.g., SRS for positioning purposes, using at least a maximum number of transmission antennas that is configured for communications purposes.

公开(公告)号：US20210168750A1

公开(公告)日：2021-06-03

申请号：US17174120

申请日：2021-02-11

Applicant: QUALCOMM Incorporated

Inventor： Bilal SADIQ ,  Navid ABEDINI ,  Naga BHUSHAN ,  Junyi LI ,  Joseph Binamira SORIAGA ,  Muhammad Nazmul ISLAM ,  Alexandros MANOLAKOS

IPC: H04W56/00 ,  H04W24/10 ,  H04L5/00

Abstract: Systems and methods for determining round trip time (RTT) includes a second node, which receives a first signal from a first node at a first time, determines a timing advance based on a first estimated channel response for the first signal, and transmits at a second time, a second signal to the first node, wherein the second time occurs after the first time by an amount of a pre-specified delay for RTT estimation minus the timing advance. The first node transmits the first signal to the second node at an initial time, receives the second signal from the second node, and determines a timing statistic from a second estimated channel response for the second signal, the timing statistic estimated at a third time. The first node determines the RTT as the third time minus the initial time minus the pre-specified delay for RTT estimation.

公开(公告)号：US20210159992A1

公开(公告)日：2021-05-27

申请号：US17165864

申请日：2021-02-02

Applicant: QUALCOMM Incorporated

Inventor： Bilal SADIQ ,  Naga BHUSHAN ,  Junyi LI ,  Vasanthan RAGHAVAN ,  Tianyang BAI ,  Joseph Binamira SORIAGA ,  Alexandros MANOLAKOS ,  Pavan Kumar VITTHALADEVUNI ,  Juergen CEZANNE

IPC: H04B17/309 ,  H04W24/10 ,  H04B7/06

Abstract: Disclosed are techniques for computing and reporting a relevance metric for a positioning beacon beam. In an aspect, a first node receives, from a second node, a plurality of beams, determines a relevance metric for each of one or more beams of interest from the plurality of beams, wherein the relevance metric for each beam of the one or more beams of interest is based on a time of arrival at the first node of the beam and a signal strength of the beam, and sends, to the second node, a report identifying each of the one or more beams of interest and including the relevance metric for each of the one or more beams of interest.

公开(公告)号：US20210127288A1

公开(公告)日：2021-04-29

申请号：US17142168

申请日：2021-01-05

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Bilal SADIQ ,  Muhammad Nazmul ISLAM ,  Juergen CEZANNE ,  Joseph Binamira SORIAGA ,  Junyi LI

IPC: H04W24/10 ,  H04L5/00 ,  H04B7/06 ,  H04W56/00

Abstract: Disclosed are techniques for using a channel state information (CSI) report framework to support positioning measurements in a wireless network. More particularly, a base station may identify one or more reference signal resources to be transmitted to a user equipment (UE) for obtaining at least one positioning measurement and configure the reference signal resources to be transmitted at least partially outside a current bandwidth that the base station and the UE are using to communicate data and control information. Accordingly, the base station may transmit, to the UE, a CSI report setting that indicates the positioning measurement to be reported and specifies that the positioning measurement is to be obtained from the configured reference signal resources.

公开(公告)号：US20210112498A1

公开(公告)日：2021-04-15

申请号：US17066115

申请日：2020-10-08

Applicant: QUALCOMM Incorporated

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

IPC: H04W52/02 ,  H04L5/00 ,  H04W72/04 ,  H04B7/0404

Abstract: This disclosure provides methods, devices and systems for channel sounding for wireless communications. Some implementations more specifically relate to scheduling sounding reference signal (SRS) resource sets for wireless devices having more than 4 receive (RX) antenna ports. In some implementations, a base station may determine an antenna switching capability of a user equipment (UE). The antenna switching capability indicates a number of RX antenna ports of the UE. The base station schedules a number of SRS resource sets for the UE based at least in part on the number of RX antenna ports in excess of four. For example, the number of RX antenna ports may be equal to 8. As another example, the number of RX antenna ports may be equal to 6. The base station further receives, from the UE, uplink transmissions of one or more SRS resources for each of the scheduled SRS resource sets.

公开(公告)号：US20210112474A1

公开(公告)日：2021-04-15

申请号：US17021816

申请日：2020-09-15

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Sony AKKARAKARAN ,  Guttorm Ringstad OPSHAUG ,  Sven FISCHER ,  Wanshi CHEN ,  Tao LUO ,  Peter GAAL

IPC: H04W36/32 ,  H04L25/02 ,  H04W76/18 ,  H04W36/00 ,  H04L12/26 ,  H04L5/00 ,  H04W76/28 ,  H04W24/10

Abstract: A user equipment (UE) receives reference signal resource configuration for transmitting reference signals for positioning from, e.g., a location server. The UE transmits or attempts to transmit reference signals for positioning to one or more transmission-reception points, such as a gNB. The UE may, however, may be unable to transmit reference signals in accordance with the reference signal resource configuration. For example, the UE may be unable to transmit the reference signals or may transmit the reference signals with lower power or a different spatial relation than configured. The UE may provide a reference signal transmission report indicating that the reference signals were not transmitted according to the reference signal resource configuration. The reference signal transmission report may indicate how the reference signal transmission differs from the reference signal resource configuration and may indicate the reasons that the reference signal transmission differs from the reference signal resource configuration.

公开(公告)号：US20210105117A1

公开(公告)日：2021-04-08

申请号：US17033656

申请日：2020-09-25

Applicant: QUALCOMM Incorporated

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

IPC: H04L5/00 ,  H04W72/04

Abstract: An apparatus for wireless communication transmits a demodulation reference signal (DMRS) for at least eight orthogonal DMRS ports in a single symbol of at least one slot. The apparatus also transmits data in the at least one slot. The apparatus may correspond to a base station transmitting DMRS and downlink data. The apparatus may correspond to a user equipment (UE) transmitting DMRS and uplink data. The apparatus may bundle the DMRS across multiple slots with a bundled DMRS including a first set of the DMRS ports in a first single symbol of a first slot and a second set of the DMRS ports in a second single symbol of a second slot. The apparatus may transmit the DMRS in only a single slot in a physical resource block group (PRG) including two or more resource blocks using four frequency domain orthogonal cover codes (FD-OCC) and a frequency offset pattern.

公开(公告)号：US20210100021A1

公开(公告)日：2021-04-01

申请号：US16948485

申请日：2020-09-21

Applicant: QUALCOMM Incorporated

Inventor： Huilin XU ,  Peter Pui Lok ANG ,  Peter GAAL ,  Aamod KHANDEKAR ,  Yuanning YU ,  Ruhua HE ,  Alexandros MANOLAKOS ,  Tao LUO ,  Hongsan SHENG ,  Yan ZHOU

IPC: H04W72/12 ,  H04W72/04

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, on a first carrier having a first subcarrier spacing (SCS), a scheduling indication via a physical downlink control channel (PDCCH) scheduling a downlink transmission on a second carrier having a second SCS. The UE may process the downlink transmission on the second carrier based at least in part on a delay between the PDCCH and the scheduled downlink transmission and a timing threshold having a basic term and an adjustment term. For example, the basic term may be based at least in part on a minimum delay between the PDCCH and the scheduled downlink transmission, and the adjustment term may be based at least in part on a processing time due to a difference between the first SCS and the second SCS. Numerous other aspects are provided.

公开(公告)号：US20210099965A1

公开(公告)日：2021-04-01

申请号：US17003801

申请日：2020-08-26

Applicant: QUALCOMM Incorporated

Inventor： Alexandros MANOLAKOS ,  Sony AKKARAKARAN ,  Sven FISCHER

IPC: H04W56/00 ,  H04W64/00 ,  H04L5/00 ,  H04W24/10

Abstract: Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) receives, from a location server, identifiers of a set of transmission-reception points (TRPs), the set of TRPs including a first reference TRP and a plurality of neighboring TRPs, receives a configuration to report reference signal time difference (RSTD) measurements for the plurality of neighboring TRPs with respect to a receive time of a reference signal from the first reference TRP and UE reception-to-transmission (UE Rx-Tx) measurements for a second reference TRP and the plurality of neighboring TRPs, and transmits, to the location server, based on one or more of a plurality of conditions being satisfied, a single UE Rx-Tx measurement for the second reference TRP and the RSTD measurements for the plurality of neighboring TRPs with respect to the receive time of the reference signal from the first reference TRP.