US 12,445,693 B2
Data transmission method and communication apparatus
Youlong Cao, Shanghai (CN); Shuri Liao, Shanghai (CN); Erkai Chen, Kista (SE); Rui Xu, Shanghai (CN); and Shengyue Dou, Shanghai (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Dec. 19, 2023, as Appl. No. 18/389,661.
Application 18/389,661 is a continuation of application No. PCT/CN2022/091804, filed on May 9, 2022.
Claims priority of application No. 202110701156.2 (CN), filed on Jun. 23, 2021.
Prior Publication US 2024/0187703 A1, Jun. 6, 2024
Int. Cl. H04N 21/647 (2011.01); H04L 41/5009 (2022.01); H04L 65/60 (2022.01); H04N 21/442 (2011.01); H04W 24/02 (2009.01)
CPC H04N 21/64738 (2013.01) [H04L 41/5009 (2013.01); H04L 65/60 (2013.01); H04N 21/44209 (2013.01); H04W 24/02 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A data transmission method, wherein the method comprises:
receiving first information from a network device;
determining an evaluation mode of user experience based on the first information, wherein the evaluation mode of user experience is one of a plurality of evaluation modes of user experience, and the evaluation mode of user experience is used to evaluate an impact of network transmission on user experience; and
sending second information to the network device, wherein the second information comprises information about the impact of the network transmission on user experience;
wherein the evaluation mode of user experience is a formula mode, and a calculation formula for an extended reality quality index (XQI) for the evaluating the impact of the network transmission on user experience, is XQI=XQI1+XQI2,
wherein XQI1 represents an evaluation score of image quality experience,

OG Complex Work Unit Math
α represents a calculation coefficient, FR represents a frame rate of a video frame and is data amounts of video frames displayed per second, Rave represents a frame impairment rate in each group of pictures (GOP) and an average frame impairment rate of all GOPs in a statistical cycle, Rave=(N−i)/N, N represents a size of the GOP, and i represents a position of a first frame that has a transmission error in the current GOP;
wherein XQI2 represents an evaluation score of interactive experience,

OG Complex Work Unit Math
β represents a calculation coefficient, FR represents a frame rate of a video frame and is data amounts of video frames displayed per second, Qave represents an average frame skipping rate of all GOPs in the statistical cycle, Qave=M/N, M represents a quantity of skipped frames in the GOP, N represents a size of the GOP, T represents an N-dimensional vector, and elements of the vector represent delays caused by network transmission of video frames in the GOP; and
wherein the second information comprises the XQI, such that the behavior of communication with the network device is adjusted based on the XQI.