US 12,445,693 B2Granted

Data transmission method and communication apparatus

AssigneeHuawei Technologies Co., Ltd.

InventorsYoulong Cao, Shuri Liao, Erkai Chen, Rui Xu, Shengyue Dou

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Abstract

A data transmission method and a communication apparatus are provided. The method includes: A network device sends first information to a terminal. The terminal receives the first information, and determines an evaluation mode of user experience based on the first information. The terminal sends second information to the network device. The network device receives the second information, and communicates with the terminal based on the second information. The first information is used to configure the evaluation mode of user experience, the evaluation mode of user experience is one of a plurality of evaluation modes of user experience, the evaluation mode of user experience is used to evaluate impact of network transmission on user experience, and the second information includes information about the impact of the network transmission on user experience.

Claims20

Dependent claims

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,
XQL
1
=
100
×
(
1
-
α
×
R
ave
×
1
FR
)
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,
XQL
=
100
×
(
1
-
β
×
Q
ave
×
1
FR
×
f
⁡
(
T
)
)
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.

45 more elements

An apparatus, comprising:

a non-transitory computer-readable memory comprising instructions;
and
one or more processors in communication with the memory and configured to execute the instructions, causing the apparatus to:
receive first information from a network device;
determine 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
send second information to the network device, wherein the second information comprises information about the impact of the network transmission on user experience;
wherein when the evaluation mode of user experience is a formula mode, 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,
XQL
1
=
100
×
(
1
-
α
×
R
ave
×
1
FR
)
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,
XQL
=
100
×
(
1
-
β
×
Q
ave
×
1
FR
×
f
⁡
(
T
)
)
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.

48 more elements

A non-transitory computer readable medium storing instructions that are executable by a computer, such that when the instructions are executed by a first communication apparatus, such that the first communication apparatus is caused to perform:

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 when the evaluation mode of user experience is a formula mode, 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,
XQL
1
=
100
×
(
1
-
α
×
R
ave
×
1
FR
)
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,
XQL
=
100
×
(
1
-
β
×
Q
ave
×
1
FR
×
f
⁡
(
T
)
)
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.

45 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/389,661Filed 19 Dec 2023 · continuation
Priority: CN 202110701156.223 Jun 2021
Published: US 2024/0187703 A16 Jun 2024
Granted: 14 Oct 2025
Term ends: Not estimatedThe source records don’t support an estimate.

Classification15 codes

H04N 21/64738
Monitoring of network processes or resources, e.g. monitoring of network load: monitoring network characteristics, e.g. bandwidth, congestion level
H04L 1/0003
By adapting the transmission rate: by switching between different modulation schemes
H04L 1/0009
Systems modifying transmission characteristics according to link quality, e.g. power backoff: by adapting the channel coding
H04L 1/0022
Characterised by the adaptation strategy: in which mode-switching is influenced by the user