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：US20230232282A1

公开(公告)日：2023-07-20

申请号：US17998342

申请日：2021-06-30

Applicant: QUALCOMM Incorporated

Inventor： Vinod BELUR RAMACHANDRA ,  Xiaolong HUANG ,  Shanmuganathan PALANISAMY ,  Rajakumar Ebenezar DEVAIRAKKAM

IPC: H04W28/16 ,  H04L5/00 ,  H04W40/24

CPC classification number: H04W28/16 ,  H04L5/0007 ,  H04W40/24 ,  H04W84/18

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer storage media, for implementing multi-user (MU) communication in a wireless mesh network. A first mesh node or a network management unit may collect information from various mesh nodes and form MU association groups based on the information. An MU association group may include an MU group head that coordinates MU group communication to or from member mesh nodes that are in the MU association group. For example, the MU group head may coordinate orthogonal frequency division multiple access (OFDMA) resource unit allocations, or MU multiple-input-multiple-output (MU-MEMO) spatial stream configurations, among other examples. Different MU association groups may be formed for uplink or downlink traffic. The creation of MU association groups may enable a wireless mesh network to realize the advantages of MU group communication within the flexible topology of a mesh environment.

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：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：US20210185725A1

公开(公告)日：2021-06-17

申请号：US16712488

申请日：2019-12-12

Applicant: QUALCOMM Incorporated

Inventor： Vinod BELUR RAMACHANDRA ,  Shishir GANESH

IPC: H04W74/08 ,  H04W74/00

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for medium access contention operations. In some implementations, a device initiates a countdown of a backoff counter associated with a medium access contention operation for transmitting uplink (UL) data on a shared wireless medium, detects a presence of downlink (DL) data on the shared wireless medium, determines whether the wireless communication device is an intended recipient of the DL data, and adjusts the backoff counter based on the determination.