Dynamic EDB Threshold Feedback for RTP Sleep State Optimization
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Solution Overview
Problem
In modern communication networks, such as 5G/NR, there is a lack of a dynamic mechanism to update the End of Data Burst (EDB) information, leading to sub-optimal energy saving in user equipment (UE) due to imprecise knowledge of the time to the next data burst, which affects power consumption and efficiency.
Innovation Solution
A method and apparatus for dynamically updating threshold values for power saving settings in user equipment by receiving and sending feedback information about the suitability of threshold values for RTP streams, using Real-time Transport Control Protocol (RTCP) messages, and adjusting the EDB field in the RTP header extension based on observed jitter, media frame rate, pacing strategy, and encoder configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the UE uses fixed threshold values for EDB without dynamic updates, then the device complexity is reduced, but the energy saving performance deteriorates due to imprecise knowledge of time to next burst
Solution Approach 1:
The patent implements a feedback mechanism where the UE sends RTCP feedback messages to the sender entity, indicating whether the current threshold values are suitable for receiving the RTP stream. This allows dynamic adjustment of threshold values based on actual reception conditions, improving energy saving performance while maintaining manageable complexity through protocol-based feedback loops
Solution Approach 2:
The threshold values for EDB are made dynamic rather than fixed. The UE can update these values based on observed jitter, media frame rate, pacing strategy, and encoder configuration. This dynamic adaptation enables the UE to optimize sleep state transitions in real-time according to changing transmission conditions, directly addressing the energy saving issue
2Reliability
If the UE transitions to sleep state based on imprecise EDB information, then the power consumption is reduced, but the reliability of data reception deteriorates due to sub-optimal energy saving
Solution Approach 1:
The RTCP feedback mechanism provides reliability information back to the sender entity, allowing adjustments that ensure data reception reliability while optimizing power consumption. The feedback loop enables the system to learn from previous sleep state transitions and adjust threshold values accordingly
Solution Approach 2:
The patent changes the parameters used for determining sleep states by incorporating multiple factors such as observed jitter, media frame rate, pacing strategy, and encoder configuration. This multi-parameter approach allows more precise determination of appropriate sleep states, balancing power consumption with data reception reliability
3Measurement precision
If the sender entity does not update EDB-related information dynamically, then the device complexity is reduced, but the measurement precision of time to next burst deteriorates
Solution Approach 1:
The feedback mechanism allows the sender entity to receive information about the suitability of threshold values and use this to dynamically update EDB-related information. This improves measurement precision of time to next burst by incorporating actual reception conditions into the timing calculations
Solution Approach 2:
The system performs preliminary actions by establishing feedback loops and pre-configuring threshold values that can be dynamically adjusted. This allows the system to prepare for future timing adjustments without requiring complex real-time calculations, improving measurement precision while managing complexity
Data Source
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AI summary
An apparatus comprising: means for receiving a session setup signalling for at least one Real-time Transport Protocol (RTP) stream, said signalling comprising a set of threshold values for indicating a time interval between two consecutive data bursts in a transmission of said at least one RTP stream; means for sending an acknowledgement to the session setup signalling, said acknowledgement comprising feedback information about suitability of the set of threshold values for receiving said at least one RTP stream in the apparatus; and means for initiating streaming of said at least one RTP stream, wherein header information of said at least one RTP stream comprises the set of threshold values corresponding to the feedback information.