HDR Video Capability Signaling for Cross-Device Video Sessions
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Solution Overview
Problem
Communication devices with differing HDR capabilities face challenges in video interaction, leading to degraded display effects and resource inefficiencies when one device cannot support HDR videos.
Innovation Solution
A communication method and system that enables devices to exchange capability information for HDR and non-HDR video support, allowing dynamic adjustment of video transmission based on device capabilities to ensure optimal display and resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a user equipment camps on a frequency for random access, then the random access can be performed, but the frequency may be an invalid uplink frequency causing access failure
Solution Approach 1:
The network side performs preliminary action by determining whether each frequency in the frequency list is a valid uplink frequency before the user equipment attempts random access. This validity information is included in the measurement configuration and provided to the terminal in advance, allowing the terminal to avoid selecting invalid frequencies for random access, thereby preventing access failures before they occur.
2Reliability
If the network side provides detailed frequency validity information, then the random access success rate improves, but the signaling overhead increases
Solution Approach 1:
Instead of providing validity information for all frequencies universally, the network side applies local quality by determining and providing validity information only for specific frequencies in the frequency list that are relevant to the terminal's measurement configuration. This targeted approach provides necessary information to improve access success while avoiding unnecessary signaling overhead for frequencies that are not used or already known to be valid.
Data Source
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AI summary
This application provides a communication method, apparatus, and system. A method performed by a first communication device includes: The first communication device sends first capability information to a second communication device, where the first capability information indicates whether a video that can be sent and/or received by the first communication device is an HDR video or a non-HDR video; the first communication device receives first indication information from the second communication device, where the first indication information indicates whether a video to be sent by the second communication device to the first communication device and/or a video to be received by the second communication device from the first communication device is an HDR video or a non-HDR video; and the first communication device sends a video to the second communication device and/or receives a video from the second communication device based on the first indication information. Based on the foregoing solution, video interaction between different communication devices can be better performed.