公开(公告)号：US20230007604A1

公开(公告)日：2023-01-05

申请号：US17943677

申请日：2022-09-13

Applicant: Qualcomm Incorporated

Inventor： Lochan Verma ,  Bin Tian ,  Sameer Vermani ,  Lin Yang

IPC: H04W56/00 ,  H04L69/28 ,  H04L5/00 ,  H04L27/26 ,  H04J3/06 ,  H04W88/08

Abstract: This disclosure provides systems, methods, apparatus, including computer programs encoded on computer storage media for orthogonal multiplexing of high efficiency (HE) and extremely high throughput (EHT) wireless traffic. Devices in a wireless local area network (WLAN) may operate under HE or EHT conditions. An access point (AP) may support both HE and EHT communications with WLAN devices. To enable substantially simultaneous downlink HE and EHT transmissions and substantially simultaneous uplink HE and EHT transmissions, the AP may support orthogonal frequency-division multiple access (OFDMA) of HE and EHT transmissions. For example, pre-HE and pre-EHT modulated fields, HE and EHT modulated fields, and payloads may be aligned in time for the HE and EHT transmissions. The AP may ensure orthogonality for multiplexing the HE and EHT transmissions based on the alignment. In some implementations, a trigger frame may be utilized to indicate uplink transmission alignments.

公开(公告)号：US11452098B2

公开(公告)日：2022-09-20

申请号：US16387261

申请日：2019-04-17

Applicant: QUALCOMM Incorporated

Inventor： Lochan Verma ,  Bin Tian ,  Sameer Vermani ,  Lin Yang ,  Youhan Kim

IPC: H04W4/00 ,  H04W72/04

Abstract: An access point (AP) may signal management frames that include two operation information fields indicating two channel widths for different classes of wireless stations (STAs). STAs may identify one of the two operation information fields based on capabilities of the STA (e.g., whether or not the STA is capable of dual band channel bonding, resource unit or physical channel puncturing, etc.). In some cases, one operation information field may indicate a channel width within a first and second frequency band (e.g., within the 5 GHz band and the 6 GHz band), as well as a puncturing scheme associated with the channel width. In some cases, the operation information field may indicate a dual band channel bonding configuration, where two frequency segments associated with the channel bonding configuration are in two different frequency bands. In some cases, a tightened spectral mask may be used for such dual band channel bonding configurations.

公开(公告)号：US20220217614A1

公开(公告)日：2022-07-07

申请号：US17706075

申请日：2022-03-28

Applicant: QUALCOMM Incorporated

Inventor： Abhishek Pramod Patil ,  George Cherian ,  Alfred Asterjadhi ,  Sandip Homchaudhuri ,  Maarten Menzo Wentink ,  Alireza Raissinia ,  Lochan Verma ,  Padmanabhan Venkataraman Karthic

IPC: H04W40/24 ,  H04W8/00 ,  H04W80/02 ,  H04W80/08 ,  H04W28/02 ,  H04W8/24

Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for high efficiency (HE) beacons. HE supported access points (APs) and stations (STAs) may operate on resource deployments used for Wi-Fi technology and without support for legacy devices, also referred to as a greenfield deployment. An AP may identify updated capability information and transmit a HE physical layer convergence protocol (PLCP) protocol data unit (PPDU) including a beacon frame. A STA may receive, from the AP, the HE or EHT PPDU and identify an indication of change to a content or format of the beacon frame relative to a reference beacon frame. Based on the identified indication, the STA may then determine an updated content or format for the beacon frame and process the beacon frame or skip processing for one or more portions of the beacon frame.

公开(公告)号：US11228963B2

公开(公告)日：2022-01-18

申请号：US16926641

申请日：2020-07-10

Applicant: QUALCOMM Incorporated

Inventor： Abhishek Pramod Patil ,  George Cherian ,  Alfred Asterjadhi ,  Sai Yiu Duncan Ho ,  Lochan Verma ,  Yanjun Sun

IPC: H04L1/16 ,  H04W4/23 ,  H04W8/24 ,  H04W12/73 ,  H04W48/08 ,  H04W48/16 ,  H04W72/04 ,  H04W74/08 ,  H04W76/11 ,  H04W76/15 ,  H04W80/02 ,  H04W84/12 ,  H04W88/02 ,  H04W88/10 ,  H04W92/02 ,  H04W92/10

Abstract: This disclosure provides systems, methods, and apparatuses for associating a wireless communication device such as a wireless station (STA) of a STA multi-link device (MLD) with an access point (AP) MLD that includes a first AP associated with a first communication link of the AP MLD and includes one or more secondary APs associated with one or more respective secondary communication links of the first AP MLD. The AP MLD transmits a frame including an advertising information element carrying discovery information for the first AP of the AP MLD, including a first portion carrying discovery information for each secondary AP of the one or more secondary APs of the AP MLD, and including a second portion carrying common attributes of the one or more secondary APs of the AP MLD.

公开(公告)号：US11044057B2

公开(公告)日：2021-06-22

申请号：US16502428

申请日：2019-07-03

Applicant: QUALCOMM incorporated

Inventor： Alfred Asterjadhi ,  Abhishek Pramod Patil ,  George Cherian ,  Lin Yang ,  Bin Tian ,  Sameer Vermani ,  Lochan Verma

IPC: H04L5/00 ,  H04W72/04

Abstract: This disclosure provides methods, devices, and systems for wireless communications. In some systems, an access point (AP) may assign a resource unit (RU) including a non-contiguous set of tones of a channel to a wireless node, such as a station (STA). The non-contiguous set of tones includes at least some tones that are non-contiguous in the frequency domain with all other tones of the set. The AP may generate an indicator for this RU and may transmit the indicator to the wireless node. The wireless node may receive the indicator, determine the non-contiguous set of tones for the indicated RU, and transmit data over the non-contiguous set of tones for the RU. The AP may receive the data via the RU (over the non-contiguous set of tones).

公开(公告)号：US20210160958A1

公开(公告)日：2021-05-27

申请号：US17100738

申请日：2020-11-20

Applicant: QUALCOMM Incorporated

Inventor： Abhishek Pramod Patil ,  Sai Yiu Duncan Ho ,  George Cherian ,  Alfred Asterjadhi ,  Lochan Verma

IPC: H04W80/02 ,  H04L1/16 ,  H04L5/00

Abstract: This disclosure provides methods, devices and systems for wireless communication, and particularly, methods, devices and systems for multi-link operation. A first wireless local area network (WLAN) device (such as an AP) may establish a multi-link association between the first WLAN device and a second WLAN device. The multi-link association may coordinated by an upper media access control (U-MAC) layer of the first WLAN device that is capable of transmitting data to the second WLAN device via a first wireless communication link using a first WLAN interface and a second wireless communication link using a second WLAN interface. This disclosure provides several alternatives for handling packet numbering and fragmentation at the U-MAC layer or at each of the first WLAN interface and the second WLAN interface.

公开(公告)号：US20210058981A1

公开(公告)日：2021-02-25

申请号：US16991943

申请日：2020-08-12

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  Lochan Verma ,  George Cherian ,  Abhishek Pramod Patil ,  Sai Yiu Duncan Ho

IPC: H04W74/08 ,  H04W74/00 ,  H04W52/02

Abstract: This disclosure provides methods, devices and systems for synchronized channel access. Some implementations more specifically relate to facilitating coexistence among wireless communication devices that support synchronized channel access and those that do not. A group of access points may schedule periodically recurring, synchronized channel access periods by periodically transmitting quiet elements. The quiet elements establish recurring quiet periods during which legacy devices are not permitted to transmit. In some implementations, an access point may transmit one or more quiet override elements each associated with a respective quiet element and indicating to other access points supporting synchronized channel access that they are permitted to contend for access during the respective quiet period. In some other implementations of synchronized channel access, an access point supporting synchronized channel access that wins contention after one or more consecutive synchronized channel access periods during which no other synchronized access points won contention, may be entitled to an extended TXOP.

公开(公告)号：US20210007168A1

公开(公告)日：2021-01-07

申请号：US16915983

申请日：2020-06-29

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  Abhishek Pramod Patil ,  George Cherian ,  Sai Yiu Duncan Ho ,  Lochan Verma

IPC: H04W76/20 ,  H04W76/15 ,  H04B7/0413 ,  H04W52/02

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for signaling between an access point (AP) multi-link device (MLD) and a non-AP MLD that support multi-link communication in a wireless local area network (WLAN). In some implementations, a multi-link association may include a first link (referred to as an anchor link) and one or more other links (referred to as auxiliary links). The signaling may include control information to activate or deactivate auxiliary links dynamically based on communication load, throughput requirements, or quality of service (QoS). The signaling also may include requests, acknowledgments, or negotiation regarding multi-link connections. Furthermore, signaling and timing information may be used to coordinate when auxiliary links are used for communication or when to promote an auxiliary link to an anchor link.

公开(公告)号：US10856244B2

公开(公告)日：2020-12-01

申请号：US16509117

申请日：2019-07-11

Applicant: QUALCOMM Incorporated

Inventor： Lochan Verma ,  Bin Tian ,  Sameer Vermani ,  Lin Yang

IPC: H04W56/00 ,  H04J3/06 ,  H04L27/26 ,  H04L5/00 ,  H04L29/06 ,  H04W88/08

Abstract: This disclosure provides systems, methods, apparatus, including computer programs encoded on computer storage media for orthogonal multiplexing of high efficiency (HE) and extremely high throughput (EHT) wireless traffic. Devices in a wireless local area network (WLAN) may operate under HE or EHT conditions. An access point (AP) may support both HE and EHT communications with WLAN devices. To enable substantially simultaneous downlink HE and EHT transmissions and substantially simultaneous uplink HE and EHT transmissions, the AP may support orthogonal frequency-division multiple access (OFDMA) of HE and EHT transmissions. For example, pre-HE and pre-EHT modulated fields, HE and EHT modulated fields, and payloads may be aligned in time for the HE and EHT transmissions. The AP may ensure orthogonality for multiplexing the HE and EHT transmissions based on the alignment. In some implementations, a trigger frame may be utilized to indicate uplink transmission alignments.

公开(公告)号：US10827385B2

公开(公告)日：2020-11-03

申请号：US16173481

申请日：2018-10-29

Applicant: QUALCOMM Incorporated

Inventor： Lochan Verma ,  Bin Tian ,  Lin Yang ,  Jialing Li Chen ,  Sameer Vermani ,  Youhan Kim

IPC: H04W28/06 ,  H04L5/00 ,  H04W84/12

Abstract: The present disclosure provides techniques for preamble puncturing in wireless local area networks (WLANs). In one implementation, an access point (AP) can identify, within a channel width, one or more bandwidth regions associated with incumbent technologies. The AP can broadcast or advertise, to a basic service set (BSS) initiated or started by the AP, a preamble puncture pattern in one or more management frames, the preamble puncture pattern being based on the bandwidth regions associated with incumbent technologies. In another implementation, an AP can identify a single user (SU) preamble puncture transmission, and can signal in a common portion of a SIG-B field of a multi-user (MU) PPDU format that a resource unit (RU) size is assigned to a same user to indicate the SU preamble puncture transmission. Although these techniques may be used in any frequency band, typical frequency bands may include, but are not limited to, a 2.4 GHz band, a 5 GHz band, and/or a 6 GHz band.