V2X Synchronization Signal Generation Using Source Identity
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Solution Overview
Problem
Current wireless communication systems face limitations in flexibility and efficiency, particularly in vehicle-to-everything (V2X) communication, where improving communication capacity, speed, and flexibility is challenging due to the existing communication structure.
Innovation Solution
A user equipment (UE) is configured with higher layer circuitry to receive and transmit information on a sidelink bandwidth part, utilizing a resource pool that includes primary and secondary sidelink synchronization signals, a physical sidelink broadcast channel, and a demodulation reference signal, where the sequences are generated based on synchronization source identities and block indices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a standardized communication structure is used for V2X communication, then system reliability and interoperability are improved, but communication flexibility and efficiency deteriorate
Solution Approach 1:
The patent applies dynamics by making the communication structure adaptable and reconfigurable. The system dynamically adjusts resource pool configurations, bandwidth part allocations, and synchronization signal parameters based on V2X communication conditions, allowing the standardized structure to flexibly accommodate different scenarios while maintaining reliability
Solution Approach 2:
The patent utilizes parameter changes by modifying communication parameters such as subcarrier spacing, cyclic prefix lengths, resource block allocations, and synchronization signal periodicities within the standardized framework. These parameter adjustments enable the system to optimize performance for different V2X applications without breaking interoperability
2Ease of manufacture
If existing communication structures are used for V2X, then implementation simplicity is maintained, but communication capacity and speed improve poorly
Solution Approach 1:
The patent applies segmentation by dividing the V2X communication resource into multiple bandwidth parts, each with dedicated resource pools for different purposes (synchronization, broadcasting, data transmission). This segmentation allows independent optimization of each segment while maintaining overall system simplicity through modular configuration
Solution Approach 2:
The patent implements universality by designing a multi-functional communication structure where the same resource pool framework supports multiple V2X services (vehicle-to-vehicle, vehicle-to-infrastructure, vehicle-to-pedestrian). The synchronized signal generation mechanism serves multiple functions including timing synchronization, frequency synchronization, and cell identification simultaneously
Data Source
AI summary
A user equipment (UE) is described. Higher layer circuitry is configured to receive information on a sidelink bandwidth part and a resource pool for sidelink within the sidelink bandwidth part. Transmitting circuitry is configured to transmit one or more blocks. Each block includes a primary sidelink synchronization signal (PSSS), a secondary sidelink synchronization signal(SSSS), a physical sidelink broadcast channel (PSBCH) and a demodulation reference signal (DMRS) associated with the PSBCH within the resource pool. A sequence of the PSSS is generated by using a synchronization source identity (ID) or a part of the synchronization source ID. A sequence of the SSSS is generated by using the synchronization source ID or a part of the synchronization source ID. The PSBCH includes a parameter related to an index of the block and the parameter is associated with a slot index.