公开(公告)号：US20240089791A1

公开(公告)日：2024-03-14

申请号：US17944978

申请日：2022-09-14

Applicant: QUALCOMM Incorporated

Inventor： Xiaolong Huang ,  Srinivas Katar ,  Sandip Homchaudhuri ,  Guido Robert Frederiks ,  Bhaskara Peela ,  James Simon Cho ,  Patrick Poon-Cheuk Chan

IPC: H04W28/02 ,  H04L5/00 ,  H04W24/08

CPC classification number: H04W28/0273 ,  H04L5/0053 ,  H04W24/08 ,  H04W28/0284

Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications systems, a wireless device may buffer uplink communications. However, such approaches may be improved. An access point (AP) may receive, from a station, uplink traffic of a traffic flow for forwarding to a backhaul network via a backhaul link. The AP may monitor a buffer of the AP to determine that a quantity of buffered uplink traffic received from the station exceeds a buffer quota, the buffer quota set for the traffic flow based on a traffic throughput capacity of the backhaul link and a throughput parameter for the traffic flow. The AP may modify, based on the quantity of buffered uplink traffic exceeding the buffer quota, an uplink communication scheme to reduce the quantity of uplink traffic from the station. The AP may communicate with the station based on the modified uplink communication scheme

公开(公告)号：US20230337217A1

公开(公告)日：2023-10-19

申请号：US17722641

申请日：2022-04-18

Applicant: QUALCOMM Incorporated

Inventor： Nicholas KUCHAREWSKI ,  Ahmed Ragab Elsherif ,  Simon Jan Brand ,  Srinivas Katar ,  Xiaolong Huang ,  Sandip Homchaudhuri ,  Harinder Singh

IPC: H04W72/12 ,  H04W72/04 ,  H04B7/0491 ,  H04B7/0452

CPC classification number: H04W72/1263 ,  H04W72/0446 ,  H04W72/1236 ,  H04B7/0491 ,  H04B7/0452

Abstract: This disclosure provides methods, devices and systems for provisioning resources for wireless communications. Some implementations more specifically relate to provisioning such resources based on a mapping of wireless communication devices to a number of time sectors that occur periodically and do not overlap other time sectors. In some aspects, each wireless stations (STAs) in a basic service set (BSS) may be mapped to a respective time sector based on attributes associated with the BSS so that communications between a STA and its associated access point (AP) can only occur within the respective time sector(s) to which the STA is mapped. In some other aspects, each AP in a multi-AP environment may be mapped to a respective time sector based on attributes associated with the multi-AP environment so that communications between an AP and its associated STAs can only occur within the respective time sector(s) to which the AP is mapped.

公开(公告)号：US11659448B2

公开(公告)日：2023-05-23

申请号：US17079247

申请日：2020-10-23

Applicant: QUALCOMM Incorporated

Inventor： Xiaolong Huang ,  Srinivas Katar ,  Bharat Bhushan

IPC: H04W28/24 ,  H04W74/08 ,  H04W92/12 ,  H04W88/08 ,  H04W88/12 ,  H04W84/12

CPC classification number: H04W28/24 ,  H04W74/0816 ,  H04W84/12 ,  H04W88/08 ,  H04W88/12 ,  H04W92/12

Abstract: This disclosure provides methods, devices and systems for controlling basic service set (BSS) configuration of an access point (AP) in a multi-AP network. The multi-AP network may include a first AP that manages a first basic service set (BSS) and a second AP that manages a second BSS. The first BSS and the second BSS may share one or more wireless channels or may have overlapping coverage areas. A multi-AP controller may determine a BSS configuration policy (such as a maximum transmission opportunity (TXOP) duration) for the second BSS based on a type of traffic in the first BSS. This disclosure includes techniques for sharing traffic characteristics, determining the BSS configuration policy, communicating the BSS configuration policy, and controlling the BSS configuration policies for multiple BSSs so that one of the BSSs can provide a quality of service (QoS) for one or more stations (STAs).

公开(公告)号：US11438801B2

公开(公告)日：2022-09-06

申请号：US17032683

申请日：2020-09-25

Applicant: QUALCOMM Incorporated

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

IPC: H04W28/10 ,  H04W88/16

Abstract: Certain aspects relate to methods and apparatus for traffic separation in a multi AP (MAP) network. In some cases, a MAP Controller may configure sets of SSIDs to a single VLAN ID in a Traffic Separation Policy and distribute the Traffic Separation Policy information to the MAP Agents.

公开(公告)号：US20220279601A1

公开(公告)日：2022-09-01

申请号：US17188165

申请日：2021-03-01

Applicant: QUALCOMM Incorporated

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

IPC: H04W74/08

Abstract: This disclosure provides systems, methods and apparatus for asynchronous channel access control of a wireless system. In some aspects, a device may adjust the priority of one or more PPDUs and may perform other operations to ensure control of a wireless medium at certain times while still allowing for other devices to communicate on the wireless medium. For example, the device may adjust a backoff counter or one or more EDCA parameters to ensure obtaining control of the wireless medium to transmit a first PPDU of an application file. For one or more subsequent PPDUs of the application file, the device may again adjust a backoff counter or one or more EDCA parameters to allow other devices to obtain control of the wireless medium in certain scenarios (such as a second device to provide information back to the device or to otherwise transmit using the shared wireless medium).

公开(公告)号：US20200163118A1

公开(公告)日：2020-05-21

申请号：US16194026

申请日：2018-11-16

Applicant: QUALCOMM Incorporated

Inventor： Xiaolong Huang ,  Lei Li ,  Srinivas Katar

IPC: H04W74/08 ,  H04L1/00 ,  H04L5/00 ,  H04W80/02 ,  H04B17/318 ,  H04B17/336 ,  H04W72/12

Abstract: This disclosure provides methods, devices and systems for selecting a first group of wireless communication devices to receive a first multi-user (MU) protocol data unit (PDU). A threshold value for identifying collisions of PDUs is determined based on the number of devices in the first group of devices. A second group of wireless communication devices is selected to receive a second MU PDU. Responsive to determining that an acknowledgment (ACK) acknowledging the second MU PDU has not been received from a device of the second group of devices within a threshold duration of time, a number of ACKs, including the ACK, that have not been received from the respective device is determined. An action is then performed based on the determined number of ACKs and the threshold value. In some implementations, the action includes reducing a data rate or initiating a backoff operation.

公开(公告)号：US09830298B2

公开(公告)日：2017-11-28

申请号：US14270124

申请日：2014-05-05

Applicant: QUALCOMM Incorporated

Inventor： Yossef Tsfaty ,  Xiaodong Wang ,  Alireza Raissinia ,  Vijayalakshmi Rajasundaram Raveendran ,  Xiaolong Huang

IPC: G06F13/24 ,  G06F13/42 ,  H04J3/06

CPC classification number: G06F13/4286 ,  G06F13/4282 ,  G06F2213/0042 ,  H04J3/06

Abstract: A method of transmitting universal serial bus (USB) frames over a communications channel is disclosed. A USB device receives one or more USB frames from a host device via a network, wherein the one or more USB frames are encapsulated in one or more data packets based on a communications protocol associated with the network. The USB device further synchronizes a local clock signal with a clock signal of the host device using a clock synchronization mechanism of the communications protocol. The USB device then determines a number of USB frames transmitted by the host device and processes the one or more USB frames based, at least in part, on the synchronized local clock signal. For some embodiments, the USB device may receive a frame count value and a corresponding media time value from the host device.

公开(公告)号：US09722826B2

公开(公告)日：2017-08-01

申请号：US14542464

申请日：2014-11-14

Applicant: QUALCOMM Incorporated

Inventor： Qinghai Gao ,  Xiaolong Huang ,  Vincent Knowles Jones, IV ,  Srinivas Katar ,  James Simon Cho

IPC: H04L27/00 ,  H04L1/16 ,  H04L1/00

CPC classification number: H04L27/0008 ,  H04L1/0003 ,  H04L1/0007 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/1614

Abstract: Methods, systems, and devices are described for wireless communications. More particularly, the described features relate to techniques for adjusting a modulation and coding scheme (MCS) to account for different airtime utilizations (available airtime actually utilized by a device for transmissions) resulting from different MCSs. In one example, a method for wireless communication may involve: determining a media access control (MAC) efficiency for a station of a plurality of stations based at least in part on a real-time multi-user (MU) physical protocol data unit (PPDU) length, a real-time physical layer service data unit (PSDU) length of each of the plurality of stations, and a modulation and coding scheme (MCS) of the station; adjusting a goodput estimate of the station using the MAC efficiency; and, adjusting the MCS of the station using the adjusted goodput estimate.

公开(公告)号：US09634757B2

公开(公告)日：2017-04-25

申请号：US14206953

申请日：2014-03-12

Applicant: QUALCOMM Incorporated

Inventor： Xiaolong Huang ,  Xiaodong Wang

IPC: H04B7/00 ,  H04B7/26 ,  H04M1/725 ,  H04W48/02

CPC classification number: H04B7/26 ,  H04M1/7253 ,  H04W48/02

Abstract: This disclosure describes wireless communication techniques, protocols, methods, and devices applicable to a docking system environment in which aspects of wireless docking may function using vicinity-based undocking techniques. In some examples, the techniques of this disclosure enable a wireless docking center to undock a wireless dockee in a situation where a wireless dockee moves out of the vicinity of a wireless docking center so as to prevent malicious users from using peripheral devices available through the wireless docking center to interact with the wireless dockee without the wireless dockee user's knowledge. In other examples, the wireless dockee may undock itself from a wireless docking center when the wireless dockee moves out of the vicinity of a wireless docking center.

公开(公告)号：US09619646B2

公开(公告)日：2017-04-11

申请号：US14265809

申请日：2014-04-30

Applicant: QUALCOMM Incorporated

Inventor： Xiaolong Huang ,  Rolf De Vegt ,  Andrew Mackinnon Davidson ,  Vijayalakshmi Rajasundaram Raveendran

IPC: G06F21/44 ,  H04W12/06 ,  H04W76/02 ,  G06F1/16 ,  H04L29/06

CPC classification number: G06F21/44 ,  G06F1/1632 ,  H04L63/083 ,  H04W12/06 ,  H04W76/14

Abstract: In one example, a method includes receiving, by a wireless docking center (WDC) and from a wireless dockee (WD), a request to access one or more peripheral functions (PFs) associated with the WDC, and receiving, by the WDC and from the WD, one or more authentication credentials. In this example, the method also includes determining, by the WDC, whether or not the one or more authentication credentials received from the WD grant access to the one or more PFs to which the WD requests access. In this example, the method also includes permitting, by the WDC, the WD to access a first PF of the one or more PFs to which the WD requests access in response to determining that the one or more authentication credentials grant access to the first PF.