Synchronization Sequence Detection in 5G Wireless Networks
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Solution Overview
Problem
In 5G wireless communication networks, the radio access node lacks information about the time and frequency position of synchronization sequence blocks (SS bursts) transmitted by neighboring cells, making it difficult to configure UEs for accurate SS burst timing, especially when UEs need to search for cells not sharing the same time and frequency position as the serving radio access node.
Innovation Solution
A method where user equipment (UE) detects and reports parameters of SS blocks transmitted by neighboring base stations to the serving base station, including timing, periodicity, and frequency locations, allowing the network to inform other UEs about the SS block transmissions and mitigate interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the radio access node uses conventional methods for SS block detection, then the UE can perform basic cell search, but the network lacks information about time and frequency position of SS bursts from neighboring cells, making accurate configuration difficult
Solution Approach 1:
The patent implements a feedback mechanism where the UE detects SS block parameters from neighboring cells and reports them back to the serving radio access node. This feedback loop provides the network with previously missing information about time and frequency positions of SS bursts, enabling accurate configuration without increasing overall system complexity
Solution Approach 2:
The UE acts as an intermediary that collects information from neighboring cells (which the radio access node cannot directly access) and relays this information to the network. This intermediary role solves the information asymmetry problem where the network needs data from multiple sources but can only directly control the serving cell
2Adaptability or versatility
If the UE searches for cells not sharing the same time and frequency position as the serving radio access node, then cell discovery capability is improved, but the network cannot provide accurate timing information without additional measurements
Solution Approach 1:
The patent applies preliminary action by having the UE perform SS block parameter detection and reporting before the network needs to configure accurate timing information. This advance collection of measurement data from multiple cells enables the network to provide precise timing information for cell discovery without delay
3Ease of operation
If the network configures UEs with default SS burst timing assumptions, then configuration is simplified, but accuracy deteriorates when cells are at different time and frequency positions
Solution Approach 1:
The patent implements dynamics by transitioning from static default timing assumptions to dynamic, measured timing information. The system adapts its timing configuration based on actual measurements reported by the UE, allowing accurate timing for cells at different positions while maintaining simple default configuration as a fallback
Data Source
AI summary
The disclosure provides methods and apparatus relating to synchronization sequence detection in a wireless communication network. In one embodiment, a method is provided in a user equipment for a wireless communication network. A plurality of base stations are operative in the wireless communication network. The method comprises: detecting one or more parameters of synchronization sequence, SS, blocks transmitted by a second base station of the plurality of base stations; and reporting the detected one or more parameters of SS blocks transmitted by the second base station to a first base station of the plurality of base stations.