公开(公告)号：US12177911B2

公开(公告)日：2024-12-24

申请号：US18488311

申请日：2023-10-17

Applicant: QUALCOMM Incorporated

Inventor： Qi Xue ,  Srinivas Katar ,  Chao Zou ,  Naveen Gangadharan ,  Neelakantan Nurani Krishnan ,  Sandip Homchaudhuri ,  Xiaolong Huang ,  Anish Ashok

IPC: H04L65/40 ,  G06T7/20 ,  G06T7/70 ,  G06T11/00 ,  H04L67/131 ,  H04W56/00 ,  H04W74/08

Abstract: This disclosure provides systems, methods and apparatus for synchronous channel access control of a wireless system. In some aspects, a device may use a TWT session to communicate with a second device during one or more TWT service periods. Uplink and downlink communications may be coordinated to both be in a TWT service period to allow a device to enter a low power mode outside of the TWT service period. The TWT session, including the service periods, may be configured and managed by the device or the second device to ensure the communications associated with an XR experience between the devices (such as pose data frames or tracking frames provided as uplink data and video data frames provided as downlink data) meet latency requirements or other requirements for the XR experience. Use of TWT service periods allows other devices to use the wireless medium outside of the TWT service periods.

公开(公告)号：US20240163911A1

公开(公告)日：2024-05-16

申请号：US18382639

申请日：2023-10-23

Applicant: QUALCOMM Incorporated

Inventor： Nathaniel David HOUGHTON ,  Xiaolong Huang ,  Naveen Gangadharan

IPC: H04W72/52 ,  H04W72/1268 ,  H04W72/23

CPC classification number: H04W72/52 ,  H04W72/1268 ,  H04W72/23 ,  H04W84/12

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for adjusting a packet duration for triggered uplink (UL) transmissions to an access point (AP) from one or more stations (STAs). In one aspect, the AP may estimate an amount of data that a STA has queued for UL transmission and select the packet duration based on the estimated amount of queued UL data. The AP may transmit a trigger frame that solicits UL data from the STA and indicates the selected packet duration. In response, the AP may receive an UL packet from the STA and determine an amount of UL data queued in the STA based on the UL packet. In some implementations, the AP may selectively adjust the packet duration for UL transmissions based on the UL packet, the determined amount of UL data queued in the STA, or both.

公开(公告)号：US11706824B2

公开(公告)日：2023-07-18

申请号：US17589536

申请日：2022-01-31

Applicant: QUALCOMM Incorporated

Inventor： Syam Krishna Babbellapati ,  Sitaramanjaneyulu Kanamarlapudi ,  Xiaolong Huang

IPC: H04W76/11 ,  H04L12/18 ,  H04W28/02 ,  H04W48/16 ,  H04W84/12

CPC classification number: H04W76/11 ,  H04L12/189 ,  H04W28/0268 ,  H04W48/16 ,  H04W84/12

Abstract: This disclosure provides methods, devices and systems for transmitting, to one or more local area network clients of the device, a multicast message indicating an available network slice, receiving, from a first local area network client of the one or more local area network clients based on the multicast message, a request to access the available network slice, establishing, at the device based on receiving the request, a connection associated with the available network slice, and transmitting, to the first local area network client based on establishing the connection, a confirmation to access the available network slice.

公开(公告)号：US11310690B2

公开(公告)日：2022-04-19

申请号：US16529547

申请日：2019-08-01

Applicant: QUALCOMM Incorporated

Inventor： Xiaolong Huang ,  Bharat Bhushan ,  Brian Michael Buesker ,  Sai Yiu Duncan Ho

IPC: H04W28/02 ,  H04W80/02 ,  H04L41/046 ,  H04W28/12

Abstract: Certain aspects relate to methods and apparatus for traffic flow service prioritization in a multi AP (MAP) network.

公开(公告)号：US10911498B2

公开(公告)日：2021-02-02

申请号：US16537848

申请日：2019-08-12

Applicant: QUALCOMM Incorporated

Inventor： Xiaolong Huang ,  Vijayalakshmi R. Raveendran ,  Xiaodong Wang ,  Fawad Shaukat

IPC: H04L12/28 ,  H04L29/06 ,  H04W99/00

Abstract: As part of a communication session, a wireless source device can transmit audio and video data to a wireless sink device, and the wireless sink device can transmit user input data received at the wireless sink device back to the wireless source device. In this manner, a user of the wireless sink device can control the wireless source device and control the content that is being transmitted from the wireless source device to the wireless sink device. The user input data transmitted by the wireless sink device can be input data obtained at a third party device and forwarded to the wireless source device.

公开(公告)号：US20180310279A1

公开(公告)日：2018-10-25

申请号：US15960297

申请日：2018-04-23

Applicant: QUALCOMM Incorporated

Inventor： Ajay Kumar Pathak ,  Srinivas Katar ,  Xiaolong Huang ,  Kapil Rai

IPC: H04W72/02 ,  H04W16/10

CPC classification number: H04W72/02 ,  H04W16/10 ,  H04W16/14 ,  H04W16/20 ,  H04W72/082 ,  H04W84/12

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for communicating channel selection constraints in a network having multiple access points (APs). In one aspect, a root AP may assist with channel selection (assignment) for the multiple APs. A first AP can provide channel operating constraints to the root AP to indicate one or more operating constraints for a particular channel that may be used by the first AP. The operating constraints may be based, at least in part, on a hardware characteristic of the first AP. For example, an operating constraint may indicate a minimum channel separation or a maximum transmit power to consider when the particular channel is used concurrently with another channel. In another aspect, the first AP can communicate a channel selection error and error code when a particular channel cannot be used due to an operating constraint.

公开(公告)号：US10063292B2

公开(公告)日：2018-08-28

申请号：US14831349

申请日：2015-08-20

Applicant: QUALCOMM Incorporated

Inventor： Olaf Josef Hirsch ,  Xiaolong Huang ,  Srinivas Katar

IPC: H04B7/04 ,  H04B7/0452 ,  H04W24/02 ,  H04B7/06 ,  H04B7/08 ,  H04W52/02 ,  H04W72/12 ,  H04W88/08 ,  H04W88/06 ,  H04W72/04

CPC classification number: H04B7/0452 ,  H04B7/0623 ,  H04B7/0689 ,  H04B7/0871 ,  H04W24/02 ,  H04W52/0225 ,  H04W72/046 ,  H04W72/1215 ,  H04W88/06 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/166 ,  Y02D70/444

Abstract: Methods, devices, and computer-readable media for wireless communication may involve techniques for managing multi-user (MU) operation when a device in a wireless network has coexisting radios. Such techniques may involve identifying a change in a multiple radio access technology (RAT) coexistence status of a first device, e.g., a change between a coexistence status that is not disruptive to MU communications and one that is disruptive. For a device communicating with a network using Wi-Fi, the change in the multiple RAT coexistence status may indicate a change between inactive Bluetooth (BT) communications and active BT communications concurrent with Wi-Fi communications. Based at least in part on the identified change in the multiple RAT coexistence status, a MU communications operation at a second device may be adjusted, for example, by disabling MU communication between the first and second devices over a first RAT when the first device changes to a coexistence status that may disrupt MU communications.

公开(公告)号：US20180227108A1

公开(公告)日：2018-08-09

申请号：US15424567

申请日：2017-02-03

Applicant: QUALCOMM Incorporated

Inventor： Hao Zhu ,  Srinivas Katar ,  Xiaolong Huang ,  Chao Zou ,  Deniz Rende

IPC: H04L5/00

CPC classification number: H04B17/373 ,  H04B17/309 ,  H04B17/336 ,  H04L1/0002 ,  H04L1/0015 ,  H04L27/2601

Abstract: A method includes determining, based on a first packet error rate (PER) associated with a first communication data rate of data sent from a first electronic device to a second electronic device, a predicted second PER associated with a second communication data rate by increasing a value of the predicted second PER based on a first signal-to-noise ratio (SNR) sensitivity associated with the first communication data rate being less than a second SNR sensitivity associated with the second communication data rate or by decreasing the value of the predicted second PER based on the first SNR sensitivity being greater than the second SNR sensitivity. The method further includes selecting a communication data rate for communication from the first electronic device to the second electronic device based at least in part on the first PER and the predicted second PER.

公开(公告)号：US20170273100A1

公开(公告)日：2017-09-21

申请号：US15074552

申请日：2016-03-18

Applicant: QUALCOMM Incorporated

Inventor： Xiaolong Huang ,  Chao Zou ,  Srinivas Katar ,  Hao Zhu ,  James Simon Cho ,  Alireza Raissinia

IPC: H04W72/12 ,  H04W74/08

CPC classification number: H04W72/1263 ,  H04W72/1252 ,  H04W74/08 ,  H04W74/0808

Abstract: Methods, systems, and devices for wireless communication are described. An access point (AP) may win access to an unlicensed frequency channel for a transmission opportunity. For the transmission opportunity, the AP may dynamically schedule a duration of time to be used for uplink transmissions and a duration of time to be used for downlink transmissions. The schedule may be based on a comparison of values for a parameter monitored by the AP. The parameter may be monitored for uplink traffic and for downlink traffic. The parameter may indicate the latency experienced by each direction of traffic, or an intolerance of each direction of traffic to delay. The AP may schedule the uplink and downlink durations to compensate for the discrepancy in latency between the two directions of traffic.

公开(公告)号：US09652192B2

公开(公告)日：2017-05-16

申请号：US14162215

申请日：2014-01-23

Applicant: QUALCOMM Incorporated

Inventor： Phanikumar Kanakadurga Bhamidipati ,  Xiaolong Huang ,  Vijayalakshmi Rajasundaram Raveendran

IPC: H04L12/66 ,  G06F3/14 ,  H04L29/06 ,  H04N21/4363 ,  H04N21/422

CPC classification number: G06F3/14 ,  H04L65/1059 ,  H04L65/4084 ,  H04L65/4092 ,  H04L65/602 ,  H04L65/608 ,  H04N21/42207 ,  H04N21/43637

Abstract: A sink device in a Wireless Display (WD) system may establish a user input device control communication channel between a source device and sink device in a WD system to allow the sink device to send device control inputs to the source device. The user input device control communication channel may include a reverse channel architecture referred to as the Wi-Fi User Input Back Channel (UIBC) that has been modified to transport one or more additional input types over UDP. For example, UIBC may be extended to transport voice input and VNC input types.