公开(公告)号：US11070259B2

公开(公告)日：2021-07-20

申请号：US16513433

申请日：2019-07-16

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Sony Akkarakaran ,  Joseph Binamira Soriaga ,  Tao Luo ,  John Edward Smee ,  Naga Bhushan

IPC: H04B7/0456 ,  H04L5/00

Abstract: Disclosed are techniques for transmitting and processing reference signals for positioning estimation over a multipath multiple-input multiple-output (MIMO) channel. In aspects, a first node configures first and second reference signal resource sets for transmission of first and second sets of reference signals, wherein the first and second reference signal resource sets occur on first and second subbands of, and/or during first and second time intervals on, the MIMO channel, wherein each reference signal resource in the first and second reference signal resource sets utilize at least first and second MIMO precoders, and transmits, to a second node over the MIMO channel, the first and second sets of reference signals, wherein the first node transmits the first and second sets of reference signals to assist the second node to perform a positioning measurement based on joint processing of the first and second sets of reference signals.

公开(公告)号：US11063692B2

公开(公告)日：2021-07-13

申请号：US16531806

申请日：2019-08-05

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush Hosseini ,  Alexandros Manolakos

IPC: H04L1/00 ,  H04L5/00 ,  H04W72/04 ,  H04W76/27

Abstract: Techniques and apparatus for rate matching physical downlink shared channel (PDSCH) around zero power (ZP) channel state information reference signal (CSI-RS) resources in slot aggregation scenarios are described. In one technique, an indication that triggers a set of ZP CSI-RS resources is received in a first slot of a plurality of aggregated slots. A rate matching behavior for processing a PDSCH transmission received in the first slot and at least a second slot, subsequent to the first slot, of the plurality of aggregated slots is determined. The PDSCH transmission received in the first slot and at least the second slot is processed in accordance with the rate matching behavior.

公开(公告)号：US11051276B2

公开(公告)日：2021-06-29

申请号：US16805044

申请日：2020-02-28

Applicant: QUALCOMM Incorporated

Inventor： Heechoon Lee ,  Peter Gaal ,  Alexandros Manolakos ,  Tao Luo ,  Huilin Xu

IPC: H04W56/00 ,  H04W72/04 ,  H04L5/00

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a carrier aggregation (CA) configuration for communications on a set of cells. The UE may determine that signals transmitted on the set of cells may be spatially quasi co-located based on the CA configuration and a predetermined relationship rule. For example, the UE may determine that the signals are spatially co-located based on receiving multiple synchronization signal blocks (SSBs) that have a same SSB index, receiving a common SSB, assuming that an SSB and reference signals sourced by the SSB are spatially quasi co-located, receiving a signal from a particular cell of the set of cells, or receiving a common spatial QCL relationship during a configured period of time. Once the spatial QCL relationship is determined, the UE may receive the signals transmitted on the set of cells based on the spatial QCL relationship.

公开(公告)号：US11044712B2

公开(公告)日：2021-06-22

申请号：US16341836

申请日：2017-11-10

Applicant: QUALCOMM Incorporated ,  Jay Kumar Sundararajan ,  Alexandros Manolakos ,  Wanshi Chen ,  Yu Zhang ,  Haitong Sun

Inventor： Jay Kumar Sundararajan ,  Alexandros Manolakos ,  Wanshi Chen ,  Yu Zhang ,  Haitong Sun

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

Abstract: Certain aspects of the present disclosure provide techniques for indicating a purpose for a reference signal. According to certain aspects, a method of wireless communication by a user equipment (UE) is provided. The method generally includes receiving an indication of a purpose of a reference signal (RS) from a base station (BS) and processing the RS in accordance with the indicated purpose.

公开(公告)号：US11032044B2

公开(公告)日：2021-06-08

申请号：US16438169

申请日：2019-06-11

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：US11026257B2

公开(公告)日：2021-06-01

申请号：US16455431

申请日：2019-06-27

Applicant: QUALCOMM Incorporated

Inventor： Gabi Sarkis ,  Chih-Ping Li ,  Alexandros Manolakos ,  Wanshi Chen ,  Jing Jiang

IPC: H04W72/14 ,  H04W72/04 ,  H04L5/00 ,  H04L1/20 ,  H04L1/18

Abstract: Certain aspects of the present disclosure provide techniques for physical downlink control channel (PDCCH) with repetitions, including techniques for signaling the number of PDCCH repetitions, the hybrid automatic repeat request (HARQ) timeline processing with PDCCH repetitions, and the demodulation reference signal (DMRS) structure for the repeated PDCCH. A method for wireless communications, by a user equipment (UE), includes determining a number of repetitions of a PDCCH. Each of the PDCCH repetitions has a same downlink control information (DCI) payload, a same aggregation level, and/or a grant for a same data channel allocation. The method includes monitoring for the PDCCH based on the determined number of repetitions.

公开(公告)号：US11025384B2

公开(公告)日：2021-06-01

申请号：US16053672

申请日：2018-08-02

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Wanshi Chen ,  Peter Gaal

IPC: H04L5/00 ,  H04W72/04

Abstract: The described techniques provide for mapping one or more demodulation reference signal (DMRS) patterns to one or more available channel state information reference signal (CSI-RS) resources. A UE receiving DMRS and CSI-RS signals may determine CSI-RS resources, or reduce its search space for identification of CSI-RS transmissions, based on a DMRS pattern for a transmission. In some cases, a base station may transmit DMRS patterns and a mapping between DMRS patterns and CSI-RS resources to a UE. CSI-RS resources may be configured semi-statically or dynamically by a base station. In some cases, one or more null DMRS patterns may be configured and mapped to CSI-RS resources, and a base station may use a null DMRS pattern for one UE to transmit a DMRS to a different UE, and both UEs may measure channel state information based on an associated CSI-RS transmitted in mapped CSI-RS resources.

公开(公告)号：US11019573B2

公开(公告)日：2021-05-25

申请号：US16805430

申请日：2020-02-28

Applicant: QUALCOMM Incorporated

Inventor： Seyedkianoush Hosseini ,  Peter Gaal ,  Wei Yang ,  Yi Huang ,  Wanshi Chen ,  Xiao Feng Wang ,  Seyed Ali Akbar Fakoorian ,  Alexandros Manolakos ,  James Beckman ,  Aamod Khandekar

IPC: H04W52/14 ,  H04W52/08 ,  H04W8/24 ,  H04W72/12 ,  H04L5/00 ,  H04L25/02

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a plurality of transmit power control commands identifying a plurality of transmit power values, wherein the plurality of transmit power control commands relate to a set of out-of-order communications. The UE may determine a transmit power for a communication based at least in part on the plurality of transmit power control commands. The UE may transmit the communication based at least in part on the determining the transmit power. Numerous other aspects are provided.

公开(公告)号：US20210136566A1

公开(公告)日：2021-05-06

申请号：US17021704

申请日：2020-09-15

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Weimin Duan ,  Muhammad Sayed Khairy Abdelghaffar ,  Pavan Kumar Vitthaladevuni ,  Krishna Kiran Mukkavilli

IPC: H04W8/24 ,  H04W76/10

Abstract: Methods, systems, and devices for wireless communications are described. The described techniques provide for the establishment of a communication link between a base station and a user equipment (UE). The UE may have a spatial partial reciprocity capability. The UE may be configured to determine antenna cross-correlation information for at least a first subset of antenna elements in the UE. The cross-correlation information may include one or more correlation parameters (e.g., correlation coefficients), a correlation model, or both. The UE may transmit sounding reference signals for a second set of antenna elements in accordance with the spatial partial reciprocity capability. The UE may also transmit an indication of the cross-correlation information for at least the first subset of antenna elements of the UE. The base station may use such information to derive correlation parameters for the unsounded antennas and determine precoders for downlink communications.

公开(公告)号：US10999030B2

公开(公告)日：2021-05-04

申请号：US16385507

申请日：2019-04-16

Applicant: QUALCOMM Incorporated

Inventor： Alexandros Manolakos ,  Gabi Sarkis ,  Joseph Binamira Soriaga

IPC: H04L5/00 ,  H04B7/06 ,  H04W72/12 ,  H04L1/18 ,  H04L1/00

Abstract: Certain aspects of the present disclosure provide techniques for demodulation reference signal (DMRS) time domain bundling and multiple codeword transmission and processing in new radio (NR) systems. A method by a transmitting device includes transmitting multiple codewords to a receiving device in a first period, each of the multiple codewords transmitted using a different set of one or more DMRS ports. The transmitting device determines to retransmit one or more of the multiple codewords and, for each of the multiple codewords to be retransmitted, the set of DMRS ports for retransmission of the codeword. The determination is based, at least in part, on whether DMRS time domain bundling is configured. The transmitting device retransmits the one or more codewords in a second period based on the determination. The receiving device determines the DMRS ports used and processes the retransmitted codewords based on the determination.