Sidelink Sequence Generator Initialization for Wireless Reliability
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Solution Overview
Problem
Initializing sequence generators for sidelink communications in wireless communication systems presents unique challenges, particularly in determining appropriate seeds for scrambling coded bits and reference signals across different types of sidelink communications.
Innovation Solution
A method where user equipment (UE) determines the type of sidelink communication and initializes a sequence generator with a seed based on that type, allowing the generator to scramble coded bits and reference signals for transmission, including using different seeds for various sidelink channels and reference signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single seed is used for all sidelink communications, then the sequence generator initialization is simple, but data integrity and communication reliability deteriorate across different sidelink channels
Solution Approach 1:
The patent segments the seed selection process by creating different seed determination methods for different sidelink channel types (PSCCH, PSSCH, PSFCH). Each channel type has its own specific seed calculation approach, ensuring that the sequence generator is properly initialized for each channel's specific requirements, thereby maintaining communication reliability without excessive complexity.
Solution Approach 2:
The patent applies local quality by tailoring the seed selection strategy to the specific characteristics of each sidelink channel. For example, PSCCH uses seeds based on subchannel indices and slot numbers, while PSSCH uses different parameters, ensuring that each channel receives the appropriate initialization quality for its function.
2Reliability
If different seeds are used for various sidelink channels, then data integrity is improved, but the complexity of determining appropriate seeds increases
Solution Approach 1:
The patent changes parameters systematically by defining seed determination rules based on channel-specific parameters such as subchannel indices, slot numbers, and UE identifiers. This approach maintains data integrity through parameter differentiation while managing complexity through systematic parameter selection rather than arbitrary seed assignment.
Solution Approach 2:
The patent performs preliminary action by pre-defining the seed determination rules for each sidelink channel type before actual communication occurs. This allows the UE to efficiently determine appropriate seeds during operation without real-time complex calculations, as the methodology is established in advance for each channel type.
3Reliability
If proper seed initialization is performed for each sidelink channel type, then communication reliability is enhanced, but the processing time and complexity increase
Solution Approach 1:
The patent applies self-service by enabling the UE to autonomously determine appropriate seeds for each sidelink channel using pre-defined rules and available channel parameters. This self-determination process eliminates the need for external seed assignment or complex coordination, reducing initialization time while maintaining reliability.
Data Source
AI summary
Aspects directed towards initializing sequence generators to facilitate sidelink communications are disclosed. In one example, a type associated with a sidelink communication is determined. A sequence generator is then initialized with a seed in which the seed is based on the type associated with the sidelink communication. The sequence generator is then utilized to facilitate transmitting at least a portion of the sidelink communication.