SS Block Positioning for Narrowband 5G Synchronization Access
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Solution Overview
Problem
The increasing complexity of 5G NR time synchronization due to variable SS block positions necessitates terminals to be equipped with costly and power-hungry hardware capable of processing wideband signals, excluding existing narrowband signal-capable terminals from accessing the communication system.
Innovation Solution
A communication node adjusts the position of the synchronization signal block (SS block) based on detectable position information from terminals, allowing efficient frequency band utilization and resource allocation, reducing the need for high-power hardware in terminals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the SS block position is freely adjusted for each communication operator, then frequency band utilization efficiency is improved, but terminal hardware complexity and power consumption increase
Solution Approach 1:
The patent implements dynamic SS block position adjustment where the base station determines and signals the SS block position to terminals through system information. This allows the SS block position to be flexibly changed according to frequency band conditions and network requirements, while terminals only need to receive and follow the positioned information rather than independently searching wideband frequencies, thus resolving the contradiction between frequency band utilization efficiency and terminal hardware complexity
Solution Approach 2:
The base station acts as an intermediary that determines the SS block position and communicates this information to terminals. This intermediary approach allows the network to optimize frequency band utilization by placing SS blocks in appropriate positions while terminals are relieved of the burden of wideband signal processing, as they simply need to access the positioned information provided by the base station
2Productivity
If the SS block position is freely adjusted for each communication operator, then frequency band utilization efficiency is improved, but terminal power consumption increases
Solution Approach 1:
The dynamic positioning approach allows the SS block to be placed in optimal positions determined by the base station, enabling terminals to efficiently access synchronization signals without performing power-intensive wideband signal processing. The terminal's power consumption is reduced because it only needs to monitor the positioned frequency location rather than searching across the entire frequency band
Solution Approach 2:
The base station serves as an intermediary that provides positioned information to terminals, eliminating the need for terminals to independently perform wideband frequency searches. This reduces terminal power consumption while maintaining flexible frequency band utilization, as the network controls the positioning and terminals simply follow the provided information
3Device complexity
If the SS block position is fixed at center frequency, then terminal hardware requirements are reduced, but frequency band utilization efficiency decreases
Solution Approach 1:
The patent transitions from fixed SS block positioning to dynamic positioning controlled by the base station. This allows the SS block to be flexibly positioned according to frequency band conditions, operator requirements, and network state, thereby improving frequency band utilization efficiency while terminals maintain simplified hardware that only needs to access the positioned information provided by the network
Data Source
AI summary
Provided is a method of outputting a synchronization signal in a communication node comprising: receiving communication connection information from a terminal, identifying detectable position information of a synchronization signal block (SS block) included in the communication connection information, setting a position of the SS block based on the identified detectable position information, and outputting the SS block based on the set position.