公开(公告)号：US20200288523A1

公开(公告)日：2020-09-10

申请号：US16809456

申请日：2020-03-04

Applicant: QUALCOMM Incorporated

Inventor： Abhishek Pramod Patil ,  George Cherian ,  Alfred Asterjadhi ,  Lochan Verma

IPC: H04W76/15 ,  H04L1/16 ,  H04L5/00 ,  H04W74/08 ,  H04W80/02

Abstract: Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for improved handling of adjacent channel interference in multi-link aggregation scenarios. In accordance with the described techniques, a device may establish a set of wireless links for communication with a second device, the set of wireless links supporting parallel transmission during at least a first duration of a multi-link session, the set of wireless links including at least a first wireless link and a second wireless link. The device may modify a transmission parameter for the first wireless link or a clear channel assessment (CCA) parameter for the second wireless link, or a combination thereof. The device may then perform the CCA procedure on the second wireless link and transmit at least a first portion of the message on the first wireless link based on the modified transmission parameter or modified CCA parameter.

公开(公告)号：US10728861B2

公开(公告)日：2020-07-28

申请号：US16154530

申请日：2018-10-08

Applicant: QUALCOMM Incorporated

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

IPC: H04W52/36 ,  H04B1/7156 ,  H04W52/16 ,  H04W72/04 ,  H04L5/00 ,  H04L25/03 ,  H04W52/26 ,  H04W52/22 ,  H04L27/26 ,  H04W52/28

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may identify a transmission mode for transmission of an input signal to be transmitted. The input signal may thus be modulated according to the identified transmission mode, and the modulated signal may then be transmitted at some power level to produce a transmitted signal having a spectral envelope. In some cases, the spectral envelope may be defined in terms of a power spectral density (PSD) of the transmitted waveform. The PSD may generally define the power of the waveform signal distributed over frequencies of the waveform. Further, the wireless device may control the modulation of the input signal, in addition to the power level of the input signal, to maintain the spectral envelope to be within a spectral mask defined for the implemented transmission mode as well as to conform to spectral flatness parameters.

公开(公告)号：US20200213933A1

公开(公告)日：2020-07-02

申请号：US16707825

申请日：2019-12-09

Applicant: QUALCOMM Incorporated

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

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

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：US10594796B2

公开(公告)日：2020-03-17

申请号：US15235807

申请日：2016-08-12

Applicant: QUALCOMM Incorporated

Inventor： Lochan Verma ,  Vijayalakshmi Raveendran

IPC: G06F13/00 ,  H04L29/08 ,  H04L12/28 ,  H04W76/10 ,  G06F3/0482 ,  G06F3/0484 ,  H04L12/66 ,  H04L29/06 ,  H04W84/12 ,  H04W88/16

Abstract: In an embodiment, an Internet of Things (IoT) controller receives information from IoT devices over an IoT communications interface. The IoT controller establishes a wireless media presentation session with a user device with the IoT controller acting as a source and the user device acting as a sink. The IoT controller generates a displayable IoT control interface for the IoT devices and sends the displayable IoT control interface to a user device within a media stream of the wireless media presentation session. The user device displays the displayable IoT control interface and sends the IoT controller user input feedback over a user input feedback channel. The IoT controller determines whether to modify one or more settings associated with the at least one IoT device based upon the user input feedback.

公开(公告)号：US20200045656A1

公开(公告)日：2020-02-06

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 ,  H04L29/06 ,  H04L27/26 ,  H04L5/00

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：US20200029350A1

公开(公告)日：2020-01-23

申请号：US16514878

申请日：2019-07-17

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  Abhishek Pramod Patil ,  Lochan Verma ,  George Cherian

IPC: H04W72/12 ,  H04W28/02 ,  H04W72/04

Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for managing uplink access in a wireless local area network. A station (STA) may inform an access point (AP) of uplink quality of service (QoS) parameters for a traffic flow from the STA. The AP may control uplink resources to satisfy the QoS parameters. For example, the AP may select from among different access modes (including a single user (SU) access mode, an uplink multi-user (UL-MU) scheduled access mode, a multi-user enhanced distributed controlled access (MU EDCA) access mode, or a low latency (LL) access mode). The AP may cause the STA to use a SU access mode or the LL access mode if the UL-MU scheduled access mode and the MU EDCA access mode are not sufficient to satisfy the uplink QoS parameters for the traffic flow.

公开(公告)号：US10530856B2

公开(公告)日：2020-01-07

申请号：US15270778

申请日：2016-09-20

Applicant: QUALCOMM Incorporated

Inventor： Lochan Verma ,  Vijayalakshmi Raveendran ,  Sampath Kumar Sudi ,  Mu-Huan Chiang ,  Mina Makar ,  Na Yu

IPC: H04L29/08 ,  H04L29/06 ,  H04W76/14 ,  H04N21/23 ,  H04N21/40 ,  H04N21/63

Abstract: In an embodiment, a first media presentation session is established between a first Source and the Sink, and a second media presentation session between a second Source and the Sink. First and second media streams are streamed to the Sink by the first and second Sources, respectively. The Sink presents the first and second media streams in respective portions of a display screen, and detects user input at the Sink that is indicative of a trigger to transfer data originated from the first Source to the second Source. The Sink coordinates with one or both of the first Source and the second Source to facilitate the data to be delivered to the second Source in response to the detection. As a result of the coordination, the second Source receives the first Source-originated data (e.g., from the first Source directly, or via the Sink).

公开(公告)号：US10454538B2

公开(公告)日：2019-10-22

申请号：US16125654

申请日：2018-09-07

Applicant: QUALCOMM Incorporated

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

IPC: H04B7/0417 ,  H04B7/0456 ,  H04B7/024 ,  H04L5/00

Abstract: One aspect includes a method of establishing, via a first access point, a distributed MIMO joint transmission opportunity with one or more second access points to one or more stations. The method comprises generating, via a processor, a first message for transmission to the stations and the second access points. The first message indicates a null data packet transmission and the stations configured to receive a stream during the joint transmission opportunity. The method also comprises transmitting the first message to the second access points and the stations. The method further comprises generating, via the processor, a reference phase signal for transmission to the second access points.

公开(公告)号：US10412718B2

公开(公告)日：2019-09-10

申请号：US15387364

申请日：2016-12-21

Applicant: QUALCOMM Incorporated

Inventor： Arjun Bharadwaj ,  Bin Tian ,  Lochan Verma ,  Sameer Vermani

IPC: H04W72/04 ,  H04W72/12 ,  H04L5/00 ,  H04L12/24 ,  H04B7/0452 ,  H04W84/12 ,  H04W74/00

Abstract: Methods, apparatuses, and computer readable media for resource allocation signaling in a high efficiency wireless local area network (WLAN) are disclosed. A receiver may receive, at a first station, a transmission frame that includes a WLAN signaling field decodable by a plurality of stations. The receiver may identify, in a station-specific portion of the WLAN signaling field, an order for a plurality of station-specific information blocks associated with the plurality of stations. The receiver may determine a number of spatial streams allocated to the first station based at least in part on the identified order for the plurality of station-specific information blocks.

公开(公告)号：US20190253296A1

公开(公告)日：2019-08-15

申请号：US16274122

申请日：2019-02-12

Applicant: QUALCOMM Incorporated

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

IPC: H04L27/26 ,  H04L12/24 ,  H04W72/04

CPC classification number: H04L27/2626 ,  H04L27/2605 ,  H04L41/0896 ,  H04W72/0453 ,  H04W84/12

Abstract: Methods and apparatuses are disclosed for communicating over a wireless communication network. One such apparatus may include a memory and a processor configured to identify a transmission mode for a transmission of a signal; select a tone plan for transmission of the signal within a 320 MHz total channel bandwidth or a 240 MHz total channel bandwidth, where the tone plan includes a 256 point tone plan, 512 point tone plan, 1024 point tone plane, 2048 point tone plan, 4096 point tone plan, and where the tone plan is selected based on the transmission mode; generate the signal according to the tone plan; and transmit the signal over the 320 MHz total channel bandwidth or over the 240 MHz total channel bandwidth. The selected tone plan may include one or more duplicates of an IEEE 802.11ax 80 MHz (HE80) tone plan which may include one or more null space 26 tone resource units.