Wireless Transmitter Frame Synchronization Codes
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Solution Overview
Problem
Current wireless communication networks face challenges in achieving fast and reliable synchronization, especially in device-to-device (D2D) and vehicle-to-anything (V2X) communications, where multiple synchronization sources with different time references complicate proper synchronization and link establishment, leading to potential interference and suboptimal time reference selection.
Innovation Solution
A transmitter communication device generates a communication frame with multiple signals, including a first and a second signal, arranged in a pre-defined configuration and selected from a set of synchronization signals with different generating codes, to provide additional synchronization information, enabling hierarchical synchronization and identification of synchronization sources, which can be used by receiver devices for prioritization and error resilience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple synchronization sources with different time references are used, then synchronization accuracy is improved, but system complexity increases
Solution Approach 1:
The synchronization signal is segmented into multiple sequences with different generating codes, where each sequence carries specific synchronization information. The receiver processes different sequences separately to determine transmitter identity and synchronization status, enabling accurate synchronization while maintaining manageable system complexity through structured segmentation.
Solution Approach 2:
The patent introduces an additional dimension of synchronization information by using different generating codes for synchronization sequences. This code dimension allows the system to encode multiple types of synchronization sources and their priorities without increasing temporal or spatial complexity, thereby improving synchronization accuracy while keeping the system structure relatively simple.
2Ease of operation
If predefined synchronization sequences provide user ID information, then link establishment is facilitated, but synchronization reliability deteriorates due to interference enhancement
Solution Approach 1:
Different synchronization sequences with distinct generating codes are assigned to different transmitters or synchronization sources. This local differentiation allows the receiver to identify and process signals from specific transmitters while filtering out interfering signals, thereby maintaining ease of link establishment while improving synchronization reliability through selective signal processing.
Solution Approach 2:
The patent changes the generating code parameter of synchronization sequences to encode additional information about transmitter identity and synchronization status. By varying this parameter, the system can distinguish between different synchronization sources and their reliability levels, enabling the receiver to prioritize reliable sources while maintaining simple link establishment procedures.
3Measurement precision
If hierarchical synchronization with multiple sources is implemented, then synchronization accuracy is improved, but information processing complexity increases
Solution Approach 1:
Synchronization information including transmitter identity and source type is pre-encoded into the generating codes of synchronization sequences before transmission. The receiver can directly decode this pre-packaged information without complex real-time analysis, thereby achieving accurate hierarchical synchronization while minimizing information processing complexity through advance information preparation.
Solution Approach 2:
The generating code acts as an intermediary that carries multiple layers of synchronization information (transmitter ID, synchronization source type, priority level) in a compact form. This intermediary structure allows the receiver to extract hierarchical synchronization information efficiently without directly processing complex multi-source data, thus improving accuracy while keeping processing complexity manageable.
Data Source
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AI summary
The invention relates to a transmitter communication device (110) configured for communication with a receiver communication device (120) in a wireless communication network (100). The transmitter communication device (110) comprises a processor (111) configured to provide basic synchronization information by generating a communication frame (115) comprising at least a first signal and a second signal for synchronising the receiver communication device (120). The processor (111) is further configured to provide additional synchronization information on the basis of the first and/or the second signal by: arranging at least the first signal and the second signal in a pre-defined configuration in the communication frame (115); and/or by selecting the first and the second signal from a set of pre-defined synchronization signals that differ in a generating code. Moreover, the invention relates to a corresponding receiver communication device (120).