Rateless Radio Link Coding for Stable Packet Length Adaptation
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Solution Overview
Problem
Current cellular technologies struggle to efficiently manage joint source and channel coding (JSCC) for semantic/effective communication due to the separation of source encoding and channel encoding functions, which leads to inefficient data transfer and resource strain, particularly in fluctuating network conditions.
Innovation Solution
Implementing rateless and lossy joint source channel coding (JSCC) with a rateless radio link (R2S2) that allows for puncturing patterns to adjust packet length and bit error rate based on network conditions, ensuring stable communication quality of service (QoS) without requiring channel state information exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If joint source and channel coding is implemented with separate encoding functions, then data transfer can be performed, but resource strain and inefficiency occur in fluctuating network conditions
Solution Approach 1:
The patent merges source encoding and channel encoding into a unified joint source channel coding (JSCC) framework. The encoder simultaneously performs source compression and channel coding, eliminating the need for separate encoding functions and reducing resource strain while improving data transfer efficiency in fluctuating network conditions.
Solution Approach 2:
The patent implements dynamic adaptation by allowing the encoder to adjust coding parameters based on current network conditions. The system dynamically modifies the coding rate and packet length to match channel variations, optimizing productivity while managing device complexity through adaptive rather than static encoding.
2Adaptability or versatility
If fixed packet length is used for transmission, then transmission simplicity is maintained, but flexibility to accommodate varying network loads is lost
Solution Approach 1:
The patent employs dynamic packet length adjustment where the encoder adapts packet length based on network load and channel conditions. This allows the system to maintain simplicity in transmission protocols while gaining flexibility to accommodate varying network demands through parameter adaptation rather than structural complexity.
3Reliability
If rateless joint source and channel coding with puncturing patterns is implemented, then stable bit error rate and flexible packet length are achieved, but coding complexity increases
Solution Approach 1:
The patent segments the coded bit stream into packets with configurable lengths using puncturing patterns. This segmentation allows the system to achieve stable bit error rates by controlling packet length and structure, while managing coding complexity through systematic division of the coding process into manageable segments rather than monolithic complex coding.
4Productivity
If channel state information exchange is required for JSCC, then optimal coding can be achieved, but communication overhead and latency increase
Solution Approach 1:
The patent implements self-service coding where the encoder adapts to channel conditions autonomously without requiring explicit channel state information exchange. The system achieves near-optimal coding performance through inherent adaptation mechanisms that eliminate the need for feedback loops, reducing communication overhead and latency while maintaining productivity.
Data Source
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AI summary
An apparatus may establish (401) a rateless radio link for stable semantic/effective communication, R2S2, between the apparatus and a client device, wherein for the R2S2 link a desired quality of service, QoS, is defined including at least a desired packet length range of from a minimum data packet length Lmin to a maximum packet length Lmax. The apparatus may schedule (402) a supported packet length Ltx and target stable bit error rate for transmission via the R2S2 link, wherein Lmin ≤ Ltx ≤ Lmax.