Synchronization Signal Transmission Pattern for Beam Deployment Timing
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Solution Overview
Problem
In the next-generation wireless communication system (NR system), the initial access procedure faces challenges in timing detection for synchronization signals during both single beam and multi-beam based deployments, especially when the UE is unaware of the number of beams used, leading to flexible and uncertain synchronization signal transmission timings.
Innovation Solution
The proposed solution involves transmitting synchronization signals in a predetermined signal transmission pattern within a signal transmission period, which indicates information such as transmission time index, allowing the UE to determine the synchronization signal transmission pattern and thereby facilitating accurate timing detection, even in scenarios with different numbers of beams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If synchronization signals are transmitted with flexible timing in multi-beam deployments, then the system can adapt to different beam configurations, but the UE cannot accurately detect timing because it does not know the number of beams used
Solution Approach 1:
The patent applies preliminary action by pre-defining a predetermined signal transmission pattern that includes specific timing information before the actual signal transmission occurs. The pattern indicates transmission time index and other timing parameters in advance, allowing the UE to accurately detect timing without needing to know the number of beams. This resolves the contradiction by providing timing information upfront while maintaining flexibility in beam configuration.
2Device complexity
If a common synchronization signal framework is used for both single beam and multi-beam deployments, then initial access procedure is simplified, but timing detection becomes uncertain when the UE is unaware of the number of beams
Solution Approach 1:
The patent applies universality by designing a predetermined signal transmission pattern that serves both single-beam and multi-beam deployment scenarios. The pattern includes timing information that is universally applicable regardless of the number of beams used, allowing the same framework to provide reliable timing detection across different deployment types. This resolves the contradiction by making the synchronization signal framework universally applicable while maintaining timing detection reliability.
3Adaptability or versatility
If synchronization signal transmission timing is made flexible to accommodate different beam numbers, then deployment flexibility is improved, but the UE cannot determine accurate timing for initial access
Solution Approach 1:
The patent introduces an intermediary element - the predetermined signal transmission pattern - that mediates between the flexible beam configuration and the UE's timing detection needs. The pattern acts as a mediator by encoding timing information (transmission time index, etc.) in a structured format that the UE can interpret to determine accurate timing, while still allowing flexible deployment configurations. This resolves the contradiction by providing a structured intermediary that bridges flexibility and timing accuracy.
Data Source
AI summary
Embodiments of the present disclosure relate to methods and apparatuses of synchronization signal transmission and receiving in a wireless communication system. The method of synchronization signal transmission in a wireless communication system may comprise transmitting a signal set containing one or more synchronization signals, wherein the one or more synchronization signals are transmitted in a predetermined signal transmission pattern within a signal transmission period, and wherein the predetermined signal transmission pattern indicates information on synchronization signal transmission. With embodiments of the present disclosure, it may indicate the information on synchronization signal transmission information by means of the signal transmission mode. Thus, especially for an initial access process, it can provide a common frame for both single beam based deployment and multi-beam based deployment.