Wireless Resource Deactivation for Video Frame Loss
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Solution Overview
Problem
In wireless communication systems, when an I-frame is lost during video transmission, the pre-configured resources for subsequent P-frames are wasted, leading to inefficiency due to the dependency of P-frames on the I-frame for decoding, and existing methods for activating or deactivating resources result in signaling overhead and latency issues.
Innovation Solution
Implement a method to temporarily deactivate resources allocated for P-frames after detecting an unreceived I-frame, allowing these resources to be reallocated or used for retransmission, and include a configurable timer or number of occasions for deactivation, which can be signaled between the transmitter and receiver to align behavior and reduce waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If resources are pre-configured for subsequent P-frames, then video transmission continuity is maintained, but resource wastage occurs when I-frame is lost
Solution Approach 1:
The patent applies dynamics by making the resource allocation flexible and adaptive rather than fixed. When an I-frame is lost, the system dynamically deactivates the pre-configured resources for subsequent P-frames, allowing them to be reallocated or used for retransmission. This dynamic adjustment resolves the contradiction by maintaining transmission continuity through conditional resource activation while preventing wastage through real-time resource management.
Solution Approach 2:
The patent changes the parameter of resource allocation state from a static pre-configured state to a dynamic state that can be activated or deactivated based on I-frame reception status. By monitoring whether the I-frame was successfully received and adjusting the resource allocation parameter accordingly, the system optimizes both continuity and efficiency, resolving the contradiction between maintaining transmission and avoiding waste.
2Productivity
If existing methods for activating or deactivating resources are used, then resource reallocation is enabled, but signaling overhead and latency increase
Solution Approach 1:
The patent applies preliminary action by pre-configuring resources for subsequent P-frames in advance, before the actual transmission occurs. When an I-frame is lost, the system already has the resources prepared and can immediately deactivate them without waiting for resource allocation decisions. This pre-preparation reduces signaling latency and overhead while still enabling efficient reallocation, resolving the contradiction between productivity and time loss.
Solution Approach 2:
The patent extracts the resource deactivation function from the traditional activation-only approach. By explicitly taking out the deactivation action and implementing it as a separate, immediate response to I-frame loss, the system avoids the need for complex resource reallocation procedures. This extraction simplifies the signaling process and reduces latency while maintaining the ability to reallocate resources efficiently.
3Manufacturing precision
If P-frames are transmitted dependent on I-frame decoding, then decoding correctness is ensured, but transmission efficiency decreases when I-frame is lost
Solution Approach 1:
The patent implements feedback by monitoring whether the I-frame was successfully received and decoded. Based on this feedback, the system adjusts the transmission of subsequent P-frames by deactivating pre-configured resources when I-frame loss is detected. This feedback mechanism ensures decoding correctness is maintained while preventing inefficient transmissions, resolving the contradiction between precision and productivity.
Solution Approach 2:
The patent applies preliminary anti-action by taking preemptive measures to prevent wasteful transmissions of P-frames when the I-frame is lost. Instead of waiting for the P-frame transmission to occur and then realizing the waste, the system proactively deactivates the resources for subsequent P-frames based on I-frame reception status. This preliminary prevention maintains decoding correctness requirements while significantly improving transmission efficiency.
Data Source
AI summary
A first apparatus including means for: sending, to a second apparatus, one or more transport blocks corresponding to a first packet of a sequence of packets, the sequence including the first packet and one or more subsequent packets, wherein decoding of the one of more subsequent packets is dependent on successfully decoding the first packet; determining that at least one of the one or more transport blocks corresponding to the first packet have not been successfully received by the second apparatus; and temporarily deactivating resources configured for sending the sequence of packets based on the determining.