Spinal Code Puncturing Scheme for Lower-Complexity Decoding
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Solution Overview
Problem
Decoding spinal codes in wireless communications systems becomes complex and impractical due to the increasing complexity with each encoding stage, making it difficult to implement effectively.
Innovation Solution
A puncturing scheme is introduced that uniformly distributes punctures and prioritizes puncturing at the beginning of the message, allowing for efficient decoding by a UE based on a network entity's encoding scheme.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If spinal codes are used for encoding messages in wireless communications, then the encoding efficiency and spectral utilization are improved, but the decoding complexity increases and becomes impractical
Solution Approach 1:
The patent segments the message into multiple parts and encodes them using different puncturing schemes. The first message part is encoded with a first puncturing scheme while the second message part is encoded with a second puncturing scheme, allowing the receiver to decode different segments independently with reduced complexity rather than decoding the entire message with high complexity
Solution Approach 2:
The patent applies different puncturing schemes to different parts of the message based on local requirements. The first puncturing scheme is applied to the first message part and the second puncturing scheme is applied to the second message part, optimizing the decoding complexity for each local segment rather than using a uniform approach
2Device complexity
If uniform puncturing distribution is used in spinal coding, then the decoding complexity is reduced, but the adaptability to different UE capabilities is limited
Solution Approach 1:
The patent dynamically selects different puncturing schemes based on UE capability indications. The network entity receives an indication of UE capability to decode messages according to different puncturing schemes, then selects and applies the appropriate puncturing scheme (first or second) based on the UE's capabilities, making the system adaptive rather than static
Solution Approach 2:
The patent changes the puncturing scheme parameters according to UE capability. The network entity configures the UE with different puncturing scheme parameters based on the received capability indication, allowing the system to adapt to different UE decoding capabilities by modifying the coding parameters
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE), may receive, from a network entity, an indication of a puncturing scheme for a spinal coding scheme based on a capability of the UE, where the puncturing scheme indicates a puncturing distribution for one or more symbols of one or more spines of the spinal coding scheme. The UE may receive a message encoded by the network entity according to the spinal coding scheme associated with the puncturing scheme. The UE may decode the message encoded according to the spinal coding scheme to obtain one or more message segments corresponding to the one or more symbols and to the one or more spines based on the puncturing distribution of the puncturing scheme.