公开(公告)号：US20210266203A1

公开(公告)日：2021-08-26

申请号：US16914011

申请日：2020-06-26

Applicant: QUALCOMM Incorporated

Inventor： Taesang YOO ,  June NAMGOONG ,  Naga BHUSHAN ,  Tingfang JI ,  Krishna Kiran MUKKAVILLI ,  Pavan Kumar VITTHALADEVUNI ,  Jay Kumar SUNDARARAJAN

IPC: H04L25/03 ,  H04L25/02 ,  H04L5/00

Abstract: Various embodiments may employ neural networks at transmitting devices to compress transmit (TX) waveform distortion. In various embodiments, compressed TX waveform distortion information may be conveyed to a receiving device. In various embodiments, the signaling of TX waveform distortion information from a transmitting device to a receiving device may enable a receiving device to mitigate waveform distortion in a transmit waveform received from the transmitting device. Various embodiments include systems and methods of wireless communication by transmitting a waveform to a receiving device performed by a processor of a transmitting device. Various embodiments include systems and methods of wireless communication by receiving a waveform from a transmitting device performed by a processor of a receiving device.

公开(公告)号：US20210185535A1

公开(公告)日：2021-06-17

申请号：US17084848

申请日：2020-10-30

Applicant: QUALCOMM Incorporated

Inventor： Ravi AGARWAL ,  Gavin Bernard HORN ,  Alexandros MANOLAKOS ,  Jay Kumar SUNDARARAJAN

IPC: H04W12/12 ,  H04W12/10 ,  H04W12/00 ,  H04W64/00

Abstract: Disclosed are techniques for detecting outlier cells based on positioning of a user equipment (UE). In an aspect, the UE or a location server determines a plurality of cells detectable by the UE, calculates a plurality of location estimates for the UE based on positioning measurements of a corresponding plurality of subsets of the plurality of cells, identifies a subset of cells that provides a best location estimate for the UE, wherein the best location estimate maximizes a set of inlier cells, calculates a final location estimate for the UE based on positioning measurements of the subset of cells and the set of inlier cells, identifies any remaining cells of the plurality of cells other than the subset of cells and the set of inlier cells as at least one outlier cell, and performs a mitigation operation based on identifying the at least one outlier cell.

公开(公告)号：US20210135812A1

公开(公告)日：2021-05-06

申请号：US16949544

申请日：2020-11-03

Applicant: QUALCOMM Incorporated

Inventor： Gokul SRIDHARAN ,  Alexandros MANOLAKOS ,  Yi HUANG ,  Wanshi CHEN ,  Wei YANG ,  Jay Kumar SUNDARARAJAN ,  Krishna Kiran MUKKAVILLI

IPC: H04L5/00 ,  H04B7/0456

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit a sounding reference signal (SRS) on a plurality of antenna ports. The UE may transmit the SRS on one or more virtual antenna ports, the one or more virtual antenna ports being based at least in part on the plurality of antenna ports. Numerous other aspects are provided.

公开(公告)号：US20210092558A1

公开(公告)日：2021-03-25

申请号：US16814829

申请日：2020-03-10

Applicant: QUALCOMM Incorporated

Inventor： Weimin DUAN ,  Alexandros MANOLAKOS ,  Joseph Binamira SORIAGA ,  Jay Kumar SUNDARARAJAN ,  Gokul SRIDHARAN

IPC: H04W4/029 ,  H04L5/00 ,  H04L27/26 ,  H04W72/04

Abstract: In an aspect, a UE estimates channel state(s) of channels(s) between the UE and network node(s) based on DL RS(s) for positioning that are scheduled and transmitted on DL resources from network node(s). The UE may apply TR filter(s) derived based on the estimated channel state(s) to a UL-RS for positioning. The UE may transmit the TR filtered UL-RS on UL resources which are associated with the DL resources of the DL-RS(s) and which are scheduled by the network node(s). The association between the UL resources and the DL resources may be indicated to the UE by the network node(s).

公开(公告)号：US20210083735A1

公开(公告)日：2021-03-18

申请号：US16610890

申请日：2018-05-08

Applicant: QUALCOMM Incorporated

Inventor： Jay Kumar SUNDARARAJAN ,  Alexandras MANOLAKOS ,  Yu ZHANG

IPC: H04B7/0456 ,  H04B7/06 ,  H04L5/00

Abstract: Aspects of the present disclosure disclose various methods for grouping network resources into precoder resource groups (PRGs) for precoding in MIMO communication. A user equipment (UE) may select a common precoder that may not be restricted to a codebook for precoding the resources in the same PRG. These resource grouping methods provide the UE with the flexibility to select a precoder that is well suited to the channel or bandwidth. Moreover, the base station may reduce downlink signaling because it does not need to signal the precoder choice to the UE. In some examples, the base station may receive PRG based channel state information feedback that facilitates DL precoding. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US20200252975A1

公开(公告)日：2020-08-06

申请号：US16777724

申请日：2020-01-30

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Seyong PARK ,  Linhai HE ,  Jay Kumar SUNDARARAJAN ,  Hung Dinh LY ,  Wanshi CHEN ,  Peter GAAL

IPC: H04W74/08 ,  H04W76/27 ,  H04B7/01 ,  H04L27/26

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station (BS), a signaling communication that indicates one or more preamble sequence configurations. Each of the preamble sequence configurations may specify a respective plurality of preamble sequence rules for a different random access channel (RACH) procedure type. The UE may generate, based at least in part on a plurality of preamble sequence rules for a preamble sequence configuration of the one or more preamble sequence configurations, a preamble sequence for a RACH communication in a RACH procedure. Numerous other aspects are provided.

公开(公告)号：US20200245372A1

公开(公告)日：2020-07-30

申请号：US16773949

申请日：2020-01-27

Applicant: QUALCOMM Incorporated

Inventor： Jing LEI ,  Alexandros MANOLAKOS ,  Linhai HE ,  Joseph Binamira SORIAGA ,  Tingfang JI ,  Ying WANG ,  Seyong PARK ,  Jay Kumar SUNDARARAJAN ,  Wanshi CHEN

IPC: H04W74/08 ,  H04L5/00 ,  H04W72/04

Abstract: Aspects of the present disclosure provide techniques and apparatus for wireless communication. In one aspect, a method may be performed by a wireless device such as a user equipment (UE) and generally includes: receiving at least one downlink (DL) signal from one or more base stations or transmitting at least one uplink (UL) positioning reference signal (PRS), the received at least one DL signal comprising: at least one DL PRS, at least one synchronization signal block (SSB), at least one system information block (SIB), at least one other reference signal comprising a channel state information reference signal (CSI-RS), or a combination thereof, wherein at least one measurement is performed based, at least in part, on the received at least one DL signal or the transmitted at least one UL PRS; and performing at least one adjustment for random access based, at least in part, on the at least one measurement.

公开(公告)号：US20200228272A1

公开(公告)日：2020-07-16

申请号：US16740267

申请日：2020-01-10

Applicant: QUALCOMM Incorporated

Inventor： Joseph Binamira SORIAGA ,  Alexandros MANOLAKOS ,  Naga BHUSHAN ,  Jay Kumar SUNDARARAJAN ,  Allen Minh-Triet TRAN ,  Tingfang JI

IPC: H04L5/00 ,  H04W56/00 ,  H04B17/318

Abstract: Disclosed are techniques for determining a line-of-sight (LOS) path between a transmitter and a wireless device. In an aspect, a wireless device receives a first reference signal on a first frequency band at a first time, receives a second reference signal on a second frequency band at a second time, compares the first time to the second time, and determines, at least based on the comparison of the first time to the second time, which of the first reference signal and/or the second reference signal followed the LOS path between the transmitter and the wireless device.

公开(公告)号：US20190021097A1

公开(公告)日：2019-01-17

申请号：US16031897

申请日：2018-07-10

Applicant: QUALCOMM Incorporated

Inventor： Chong LI ,  Jay Kumar SUNDARARAJAN ,  Jing JIANG ,  Seyong PARK

IPC: H04W72/12 ,  H04W72/04 ,  H04B1/7143

CPC classification number: H04W72/12 ,  H04B1/692 ,  H04B1/713 ,  H04B1/7143 ,  H04B2001/6908 ,  H04J13/0074 ,  H04L1/1819 ,  H04W72/0413 ,  H04W72/042

Abstract: Aspects of the present disclosure provide a mechanism for utilizing uplink hopping patterns for HARQ transmissions. Each hopping pattern may include a sequence of different frequency resources or a sequence of different scrambling sequences for a user equipment (UE) to utilize over time for HARQ transmissions. Each of the hopping patterns may further be associated with a time index mode in which the hopping pattern is applied to time resources such that each time resource within a consecutive sequence of time resources is mapped to a different frequency resource or scrambling sequence. The base station may select a hopping pattern for a particular UE and transmit an indication of the selected hopping pattern to the UE.

公开(公告)号：US20180368017A1

公开(公告)日：2018-12-20

申请号：US16009071

申请日：2018-06-14

Applicant: QUALCOMM Incorporated

Inventor： Jay Kumar SUNDARARAJAN ,  Haitong SUN ,  Aleksandar DAMNJANOVIC ,  Kambiz AZARIAN YAZDI ,  Naga BHUSHAN

IPC: H04W24/10 ,  H04W72/12 ,  H04W52/32 ,  H04W52/34 ,  H04W72/08

Abstract: Aspects directed towards a cell-specific configuration for sounding transmissions and measurements are disclosed. In one example, scheduled entities served by a scheduling entity are identified and a cell-specific sounding pattern configuration uniformly applicable to each of the scheduled entities is generated such that the cell-specific sounding pattern configuration has a different pattern than a cell-specific sounding pattern configuration associated with at least one other cell. The cell-specific sounding pattern configuration is then transmitted to each of the scheduled entities to facilitate an identification of cell-specific resources to use for at least one of a sounding transmission or a sounding measurement. In another example, a cell-specific sounding pattern configuration is received and cell-specific resources associated with the cell-specific sounding pattern configuration are identified. At least one of a sounding transmission or a sounding measurement is then configured according to the cell-specific resources associated with the cell-specific sounding pattern configuration.