公开(公告)号：US20180097596A1

公开(公告)日：2018-04-05

申请号：US15718447

申请日：2017-09-28

Applicant: QUALCOMM Incorporated

Inventor： Arul Durai Murugan PALANIVELU ,  Kapil BHATTAD ,  Manikandan CHANDRASEKAR ,  Alberto RICO ALVARINO

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

Abstract: Wireless communications systems and methods related to communicating positioning reference signals (PRSs) for narrowband communication are provided. A first wireless communication device determines a time-frequency PRS pattern based at least in part on a narrowband communication frequency band configuration and a PRS subframe configuration mode associated with a set of subframes. The first wireless communication device communicates, with a second wireless communication device, a plurality of PRSs using the determined PRS time-frequency pattern in the set of subframes. The PRS subframe configuration mode can indicate a first configuration including a bitmap indicating a set of PRS subframes positioned within a group of contiguous subframes, a second configuration indicating a subset of the group of contiguous subframes that may carry the PRSs, or a combination thereof. The first configuration and/or the second configuration can be used to indicate the set of subframes.

公开(公告)号：US20210378054A1

公开(公告)日：2021-12-02

申请号：US16884364

申请日：2020-05-27

Applicant: QUALCOMM Incorporated

Inventor： Vinod BELUR RAMACHANDRA ,  Abhijit BHATTACHARYA ,  Mani Bharathi PANDIAN ,  Arul Durai Murugan PALANIVELU

IPC: H04W84/12 ,  H04W72/08 ,  H04W52/02 ,  H04L5/00 ,  H04L1/16

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for spatial reuse in a wireless network. In an example method, a first wireless device detects an overlapping basic service set (OBSS) packet received from a second wireless device in an OBSS, decodes one or more signal fields of the OBSS packet, determines that the OBSS packet is a transmission in which one or more resource unit (RUs) are unallocated, and performs a spatial reuse (SR) transmission to one or more first stations using a number of the unallocated RUs.

公开(公告)号：US20240306094A1

公开(公告)日：2024-09-12

申请号：US18179935

申请日：2023-03-07

Applicant: QUALCOMM Incorporated

Inventor： Akansh JAIN ,  Vinod BELUR RAMACHANDRA ,  Sarath Kumar MAHENDRADA ,  Arul Durai Murugan PALANIVELU ,  Suresh CHANDRASEKARAN ,  Sriram PARTHASARATHY

IPC: H04W52/18

CPC classification number: H04W52/18

Abstract: This disclosure provides methods and devices for realizing sensitivity gains for high-efficiency (HE) extended range (ER) dual carrier modulation (DCM) modes. A wireless communication device can determine one or more preamble symbols of a packet based on a mode of transmission of the packet, the one or more preamble symbols of the packet being associated with a receiver sensitivity limitation. The wireless communication device can apply a power boost of a to the one or more preamble symbols by a power boost value, the power boost value being based on the mode of transmission of the packet. The wireless communication device can determine whether the one or more preamble symbols with the applied power boost satisfy a spectral mask. The wireless communication device can transmit the packet when the one or more preamble symbols with the applied power boost satisfy the spectral mask.

公开(公告)号：US20140036797A1

公开(公告)日：2014-02-06

申请号：US13829600

申请日：2013-03-14

Applicant: QUALCOMM INCORPORATED

Inventor： Arul Durai Murugan PALANIVELU ,  Kapil BHATTAD ,  Dhananjay Ashok GORE ,  Ashok MANTRAVADI

IPC: H04W72/08

CPC classification number: H04W72/085 ,  H04L1/0026 ,  H04L1/0027 ,  H04L1/0028

Abstract: Certain aspects of the present disclosure relate to techniques for reporting Channel Quality Indicator (CQI). In certain aspects, a User Equipment (UE) may schedule switch from at least a first set of zero or more antennas used by the UE, to at least one second set of zero or more antennas, wherein the first and second sets differ by at least one antenna. The UE may determine a Channel Quality Indicator (CQI) to be reported from the UE for use at a base station in a subsequent CQI subframe set, based at least on the scheduled switch. The UE may thereafter transmit the CQI to the base station.

Abstract translation: 本公开的某些方面涉及用于报告信道质量指示符（CQI）的技术。 在某些方面，用户设备（UE）可以将至少由UE使用的零个或多个天线的第一组的调度调度到零个或多个天线的至少一个第二组，其中第一组和第二组在 至少一个天线。 UE可以基于至少基于所调度的交换机来确定要在UE中报告的信道质量指示符（CQI）以在后续CQI子帧集合中在基站处使用。 然后，UE可以将CQI发送到基站。

公开(公告)号：US20230370978A1

公开(公告)日：2023-11-16

申请号：US18245711

申请日：2021-10-27

Applicant: QUALCOMM Incorporated

Inventor： Abhijit BHATTACHARYA ,  Vinod BELUR RAMACHANDRA ,  Arul Durai Murugan PALANIVELU ,  Raj Kumar KRISHNA KUMAR

IPC: H04W52/24 ,  H04W52/22 ,  H04L1/00

CPC classification number: H04W52/245 ,  H04L1/0003 ,  H04W52/225 ,  H04W52/242

Abstract: This disclosure provides systems, methods and apparatuses for selectively using spatial reuse (SR) transmissions in the presence of an overlapping basic service set (OBSS) transmission. In some implementations, a wireless communication device may transmit data to another wireless communication device using SR packets in the presence of an OBSS transmission or interference only when the signal strength of SR packets received at the other wireless communication device is greater than an amount of signal degradation of the OBSS transmission caused by the SR transmission.

公开(公告)号：US20210051664A1

公开(公告)日：2021-02-18

申请号：US16944829

申请日：2020-07-31

Applicant: QUALCOMM Incorporated

Inventor： Abhijit BHATTACHARYA ,  Arul Durai Murugan PALANIVELU ,  Mani Bharathi PANDIAN ,  Rohit KAPOOR

IPC: H04W72/04 ,  H04W16/02 ,  H04W72/08 ,  H04W52/36 ,  H04L1/16 ,  H04W24/10 ,  H04B17/318

Abstract: This disclosure provides systems, methods and apparatuses for dynamically enabling or disabling spatial reuse (SR) transmissions from wireless communication devices belonging to a first basic service set (BSS). In some instances, a first wireless communication device receives a plurality of intra-BSS packets from a second wireless communication device associated with the first BSS, determines an average power level of the intra-BSS packets at the first wireless communication device, determines a maximum power level of overlapping basic service set (OBSS) packets associated with one or more OBSSs, determines a signal-to-interference-plus-noise ratio (SINR) of the intra-BSS packets based on the determined average power level of the intra-BSS packets and the determined maximum power level of the OBSS packets, and determines whether to transmit a spatial reuse (SR) packet to the second wireless communication device while detecting OBSS packets on the wireless medium based on the determined SINR relative to a value.