Title:
METHOD FOR ASSESSING NETWORK QUALITY IN VIDEO TRANSMISSION IN NEAR-FIELD SCENARIO, AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/247409
Kind Code:
A1
Abstract:
Disclosed in the embodiments of the present application are a method for assessing network quality in video transmission in a near-field scenario, and a device. The method and the device can be used for assessing a network state in a video transmission process in scenarios such as wireless screen projection, a vehicle-mounted screen projection and multi-screen collaboration, and the method comprises: a transmission layer of a receiving end device acquiring an arrival time of a video frame being transmitted to the transmission layer, and periodically acquiring a frame arrival time sequence composed of all the arrival times within a preset duration, obtaining a frame interval time sequence according to the frame arrival time sequence, and determining a network quality level according to the frame interval time sequence, wherein the network quality level is used for reflecting the current network state. By means of the present application, a real-time network state is assessed at a transmission layer by using frame interval time sequence distribution. Since the transmission layer is between a network layer and an application layer, the transmission layer can sense a change in the network state in advance, and can accurately assess network requirements of the application layer, thereby solving the problems in the prior art of real-time network quality assessment being performed inaccurately and not being performed in a timely manner.
More Like This:
| JP6403768 | Bandwidth Reserve Methods and Devices for Adaptive Streaming Clients |
| JPH07245755 | CATV SYSTEM |
| JP3248807 | TRANSMITTER |
Inventors:
LI LISHAN (CN)
LI JIE (CN)
ZHENG JINHUAN (CN)
ZHU JIANJIAN (CN)
LI JIE (CN)
ZHENG JINHUAN (CN)
ZHU JIANJIAN (CN)
Application Number:
PCT/CN2022/081892
Publication Date:
December 01, 2022
Filing Date:
March 21, 2022
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04N21/647
Domestic Patent References:
| WO2014091515A1 | 2014-06-19 |
Foreign References:
| JP2005322995A | 2005-11-17 | |||
| CN108769450A | 2018-11-06 | |||
| US20070060166A1 | 2007-03-15 | |||
| US20170171051A1 | 2017-06-15 | |||
| JP2008244894A | 2008-10-09 |
Attorney, Agent or Firm:
SHENPAT INTELLECTUAL PROPERTY AGENCY (CN)
Download PDF:
Previous Patent: PHOTONIC DEVICE, CROSSED WAVEGUIDE, WAVEGUIDE LAYER AND MANUFACTURING METHOD THEREFOR
Next Patent: FREQUENCY MIXER AND TRANSCEIVER
Next Patent: FREQUENCY MIXER AND TRANSCEIVER