NR-SS Burst Set Design for mmWave Coverage Enhancement
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Solution Overview
Problem
The 5G communication system faces challenges in providing efficient and unified radio resource acquisition and tracking mechanisms for various use cases, such as enhanced mobile broadband, ultra-reliable low latency, and massive machine-type communication, especially in scenarios with different coverage requirements and frequency bands, which demand seamless and low-latency radio resource management.
Innovation Solution
The design of an NR-SS burst set in an advanced wireless communication system, which includes specific configurations for user equipment and base stations, enables efficient control and management of synchronization signals, allowing for improved radio resource management and mobility management across diverse network topologies and frequency bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If synchronization signals are transmitted in mmWave bands to achieve higher data rates, then data rate is improved, but propagation loss increases and transmission distance decreases
Solution Approach 1:
The patent applies periodic action by transmitting synchronization signals multiple times within a burst set. The SS/PBCH bursts are transmitted periodically with defined time intervals, allowing the UE to accumulate signal energy across multiple transmissions. This periodic repetition compensates for the high propagation loss in mmWave bands by providing multiple opportunities for successful signal detection, thereby maintaining high data rates while overcoming energy loss through temporal distribution of transmission energy.
Solution Approach 2:
The patent ensures continuity of useful action by designing continuous synchronization signal transmission across multiple slots and frames. The SS/PBCH bursts are transmitted continuously over a defined period rather than as isolated events, maintaining persistent signal presence in the channel. This continuous transmission approach counteracts the high propagation loss in mmWave bands by ensuring uninterrupted signal availability, enabling the system to achieve both high data rates and adequate coverage despite energy loss.
2Length of stationary object
If beamforming and massive MIMO techniques are used to decrease propagation loss and increase transmission distance, then transmission distance is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the synchronization signal transmission into multiple discrete SS/PBCH bursts distributed across different time slots and frequency resources. Each burst represents a segmented transmission unit that can be independently processed by the UE. This segmentation approach enables the system to achieve extended transmission distance through beamforming and massive MIMO while managing device complexity by breaking down the complex signal structure into manageable, standardized burst units that follow defined transmission patterns.
Solution Approach 2:
The patent applies dimensionality change by extending synchronization signal transmission across multiple dimensions including time (multiple slots and frames), frequency (different carrier frequencies), and spatial domains (multiple antenna ports). This multi-dimensional approach allows the system to achieve extended transmission distance through beamforming and massive MIMO while managing device complexity by distributing the signal across multiple independent dimensions, enabling the UE to process signals from different dimensions separately rather than handling a single complex multi-dimensional signal simultaneously.
3Adaptability or versatility
If an efficient and unified radio resource acquisition mechanism is designed for various use cases, then adaptability is improved, but system complexity increases
Solution Approach 1:
The patent applies universality by designing a unified SS/PBCH burst set structure that serves multiple use cases including enhanced mobile broadband, ultra-reliable low latency communication, and massive machine-type communication. The same basic burst structure and transmission framework are used across different service types, with adaptability achieved through configurable parameters rather than fundamentally different mechanisms. This universal approach enables the system to support diverse use cases while managing complexity by maintaining a single standardized transmission framework that can be flexibly configured for different requirements.
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AI summary
The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A method for a user equipment (UE) in a wireless communication system is provided. The method comprises receiving, from a base station (BS), re-synchronization signals (RSSs) over a downlink channel; identifying time-domain and frequency-domain resources used for the RSSs; and identifying a set of sequences used for constructing the RSSs from the time-domain and frequency-domain resources used for the RSSs.