User Plane Protocol Layer Mapping for QUIC-Aware Data Flows
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Solution Overview
Problem
Current mobile networks lack flexibility in configuring protocol layers based on upper-layer features, leading to suboptimal handling of data flows and limiting the ability to leverage advanced upper-layer capabilities such as QUIC, which are expected to become more prevalent in 6G networks.
Innovation Solution
A method for a communication device to dynamically map protocol layer configurations based on upper-layer features, allowing the network to selectively enable or disable functionalities like encryption, in-order delivery, and retransmission based on the specific characteristics of the data flow, using indicators in the protocol data units to facilitate this mapping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If protocol layers are configured with fixed functionalities, then network stability is maintained, but network efficiency decreases due to redundant processing
Solution Approach 1:
The patent implements dynamic protocol layer configuration where sublayer functionalities are adjusted based on upper-layer features. The system transitions from static, fixed configurations to dynamic, adaptable configurations that change according to traffic requirements. This allows the protocol stack to optimize processing by enabling or disabling specific sublayer functions (such as encryption, in-order delivery, retransmissions) based on what the upper layers already provide, thereby improving network efficiency without excessive complexity.
Solution Approach 2:
The patent changes the configuration parameters of protocol sublayers based on detected upper-layer features. By monitoring what functionalities are already present in upper layers (e.g., QUIC protocol features), the system modifies sublayer parameters to avoid redundancy. This parameter adjustment mechanism enables efficient resource utilization while maintaining necessary protocol functions.
2Reliability
If sublayer functionalities are enabled for all data flows, then reliability is improved, but network load increases due to redundant processing
Solution Approach 1:
The patent applies local quality by configuring sublayer functionalities specifically for each data flow based on its upper-layer features, rather than applying a uniform configuration to all flows. Each data flow receives the appropriate level of sublayer processing needed - enabling reliability where required while avoiding redundant processing where upper layers already provide equivalent functionality. This localized configuration approach reduces overall network load while maintaining necessary reliability.
Solution Approach 2:
The patent implements partial action by selectively enabling only the necessary sublayer functionalities for each data flow. Instead of enabling all possible sublayer functions for every flow (excessive action), the system enables only those functions that are not already provided by upper layers. This partial enabling approach maintains reliability where needed while reducing unnecessary network load.
3Adaptability or versatility
If protocol configuration is optimized for specific upper-layer features, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent implements self-service by enabling the protocol stack to automatically detect upper-layer features and configure sublayer functionalities without external intervention. The system monitors upper-layer protocols (such as QUIC) and autonomously determines which sublayer functions to enable or disable. This self-configuration mechanism improves adaptability to different upper-layer features while managing complexity through automation rather than manual configuration management.
Solution Approach 2:
The patent uses feedback mechanisms where the system continuously monitors upper-layer protocol features and uses this information to adjust sublayer configurations. The feedback loop detects what functionalities are already provided by upper layers and accordingly modifies sublayer behavior. This feedback-driven approach enables high adaptability to different protocol configurations while managing complexity through automated detection and adjustment.
4Reliability
If encryption is applied at sublayer, then security is improved, but processing time increases when upper-layer already provides encryption
Solution Approach 1:
The patent converts the potential harm of redundant encryption into a benefit by using the presence of upper-layer encryption as a signal to disable sublayer encryption. Instead of blindly applying encryption at all levels (which would waste processing time), the system detects when upper layers already provide encryption and accordingly disables sublayer encryption. This transforms what could be redundant processing into an optimized configuration that maintains security while reducing processing time.
Data Source
AI summary
A method including a protocol stack including a plurality of layers, the plurality of layers including a first layer and a second layer. The first layer generating a first protocol data unit (PDU) associated with a first data flow. The second layer obtaining the first PDU and information about the first PDU. Further, the method includes the second layer either i) determining, based on the information about the first PDU, a sublayer configuration to be applied to at least one or more PDUs associated with the first data flow or ii) providing to another layer the information about the first PDU so that the another layer can determine, based on the information, the sublayer configuration to be applied to the one or more PDUs associated with the first data flow.