公开(公告)号：US11882552B2

公开(公告)日：2024-01-23

申请号：US17878588

申请日：2022-08-01

Applicant: Meta Platforms Technologies, LLC

Inventor： Gang Lu ,  Nihar Doshi ,  Jiwon Steve Han ,  Xiaoguang Wang ,  Dong Zheng ,  Chunyu Hu ,  Qi Qu

IPC: H04W52/02 ,  H04W72/0453 ,  H04W72/23

CPC classification number: H04W72/0453 ,  H04W52/0229 ,  H04W72/23

Abstract: Disclosed herein are a system, a method and a device for switching between different communications protocols. A head wearable display can transmit, to a console during a first session interval, a first request to switch from a first link using a first communication protocol to a second link using a second communication protocol. The first request can include at least one characteristic of the first link. The head wearable display can receive, from the console, a first response to the first request, to perform a switch from the first link to the second link. The first response can indicate a wake up time and a second session interval to perform the switch. The head wearable display can switch from the first link to the second link in the second session interval and after the wake up time.

公开(公告)号：US11844023B2

公开(公告)日：2023-12-12

申请号：US17506182

申请日：2021-10-20

Applicant: Meta Platforms Technologies, LLC

Inventor： Guoqing Li ,  Dong Zheng ,  Gang Lu ,  Qi Qu ,  Abhishek Kumar Agrawal ,  Nabeel Ahmed ,  Amit Shukla ,  Xiaoguang Wang ,  Chunyu Hu

IPC: H04W52/02 ,  H04W24/04 ,  H04W8/18

CPC classification number: H04W52/0235 ,  H04W8/18 ,  H04W24/04

Abstract: Disclosed herein are related to dynamically adjusting a wake time and a sleep time for wireless communication between two or more devices to reduce power consumption. In one aspect, a first device enters a wake up state to wirelessly communicate with a second device for a service period with a determined duration scheduled according to a target wake time (TWT) protocol. In one aspect, the first device monitors for one or more indicators from the second device indicating that additional data is available for communication. In one aspect, the first device extends the service period beyond the determined duration, in response to receiving a first indicator of the one or more indicators. In one aspect, the first device communicates with the second device the additional data during the service period extended beyond the determined duration.

公开(公告)号：US11606169B2

公开(公告)日：2023-03-14

申请号：US17466373

申请日：2021-09-03

Applicant: Meta Platforms Technologies, LLC

Inventor： Behnam Bastani ,  Xiaoguang Wang ,  Gang Lu

IPC: H04L1/18 ,  H04L1/1809 ,  H04L1/1607 ,  H04L1/00 ,  H04L1/1867

Abstract: Disclosed herein includes a system, a method, and a device for prioritizing packet retransmission. A transmitting device can insert, for each packet of a plurality of packets of a video frame, a sequence number indicative of an order of the corresponding packet among the plurality of packets, into a header of the corresponding packet according to an application layer protocol. The transmitting device can transmit to the receiving device, at a first level of priority, the plurality of packets including the corresponding inserted sequence numbers. The transmitting device can receive an identification of one or more packets to be retransmitted to the receiving device, the identification based on at least the inserted sequence numbers of the one or more packets. The transmitting device can retransmit the one or more packets at a second level of priority that is higher than the first level of priority.

公开(公告)号：US11558624B2

公开(公告)日：2023-01-17

申请号：US17385077

申请日：2021-07-26

Applicant: Meta Platforms Technologies, LLC

Inventor： Behnam Bastani ,  Xiaoguang Wang ,  Gang Lu

IPC: H04N11/02 ,  H04N19/146 ,  H04N19/174 ,  H04L65/60 ,  H04L65/80 ,  H04L67/61

Abstract: Disclosed herein includes a system, a method, and a device for reducing latency and jitter by reserving a transmission duration for a transmit opportunity. A device can compress a first slice of a plurality of slices of a video frame to obtain a size of the first slice after compression. The device can estimate a size of the video frame after compression, according to the size of the first slice after compression. The device can generate a request to send (RTS) to reserve, a transmission channel for a transmission duration corresponding to the size of the video frame after compression. The device can broadcast the RTS to one or more other devices.

公开(公告)号：US20220369318A1

公开(公告)日：2022-11-17

申请号：US17878588

申请日：2022-08-01

Applicant: Meta Platforms Technologies, LLC

Inventor： Gang Lu ,  Nihar Doshi ,  Jiwon Steve Han ,  Xiaoguang Wang ,  Dong Zheng ,  Chunyu Hu ,  Qi Qu

IPC: H04W72/04 ,  H04W52/02

Abstract: Disclosed herein are a system, a method and a device for switching between different communications protocols. A head wearable display can transmit, to a console during a first session interval, a first request to switch from a first link using a first communication protocol to a second link using a second communication protocol. The first request can include at least one characteristic of the first link. The head wearable display can receive, from the console, a first response to the first request, to perform a switch from the first link to the second link. The first response can indicate a wake up time and a second session interval to perform the switch. The head wearable display can switch from the first link to the second link in the second session interval and after the wake up time.