公开(公告)号：US11903017B2

公开(公告)日：2024-02-13

申请号：US17191234

申请日：2021-03-03

Applicant: QUALCOMM Incorporated

Inventor： Xiaolong Huang ,  Srinivas Katar ,  Andrew MacKinnon Davidson ,  Sandip Homchaudhuri ,  Qi Xue ,  Neelakantan Nurani Krishnan ,  Simon Jan Brand

IPC: H04W72/563 ,  H04W76/15 ,  H04W40/02

CPC classification number: H04W72/563 ,  H04W40/02 ,  H04W76/15

Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for low-latency communications in wireless networks. In some implementations, a wireless station (STA) may transmit a data session request to a root access point (AP) in a wireless network responsive to activating an application associated with latency restricted (LR) data traffic. In some aspects, the data session request may indicate one or more preferred channels to carry the LR data traffic. In some other aspects, the data session request may indicate one or more preferred times to exchange the LR data traffic. In some implementations, the root AP may establish an LR data path with the STA based on the preferred time or frequency resources indicated in the data session request. The LR data path may include time or frequency resources that are reserved for LR data traffic between the root AP and the STA.

公开(公告)号：US11800572B2

公开(公告)日：2023-10-24

申请号：US17188275

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 ,  H04W56/00 ,  G06T11/00 ,  G06T7/20 ,  G06T7/70 ,  H04L65/40 ,  H04L67/131

CPC classification number: H04W74/0891 ,  G06T7/20 ,  G06T7/70 ,  G06T11/00 ,  H04L65/40 ,  H04L67/131 ,  H04W56/001 ,  G06T2200/16 ,  G06T2207/10016

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：US11696345B2

公开(公告)日：2023-07-04

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

CPC classification number: H04W74/0883 ,  H04W74/0816

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：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：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：US20240107568A1

公开(公告)日：2024-03-28

申请号：US17951775

申请日：2022-09-23

Applicant: QUALCOMM Incorporated

Inventor： Venkateswara Swamy Bandaru ,  Krishna Chaitanya Rao ,  Neelakantan Nurani Krishnan

IPC: H04W72/08 ,  H04L5/00 ,  H04W72/04

CPC classification number: H04W72/085 ,  H04L5/0094 ,  H04W72/0453

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device, such as an access point (AP), may perform a channel selection procedure that accounts for one or more sub-channels of a particular channel being punctured. For example, an AP may generate multiple channel efficiency metrics for multiple channels. The multiple channel efficiency metrics may be based on measuring the multiple channels and one or more subchannel puncturing patterns for the one or more channels of the multiple channels. The AP may transmit a message on a channel of the multiple channels based on a channel efficiency metric, of the multiple channel efficiency metrics, for the channel. The AP may transmit a control message including a puncture bitmap that indicates a subchannel puncturing pattern for one or more subchannels of the channel. The message may be transmitted on the channel in accordance with the puncture bitmap.