Synchronization Signal Block Request Retransmission for 5G UE
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In 5G mobile communication systems, there is a need to optimize the synchronization process between user equipment (UE) and base stations to improve power efficiency and ensure timely detection of synchronization signals, especially in scenarios where the UE may not detect the synchronization signal block (SSB) initially.
Innovation Solution
A method where the UE transmits a first synchronization signal block (SSB) request to the base station and determines if an SSB is detected within a specified time interval. If not detected, the UE transmits a second SSB request, allowing for retransmission and improved detection chances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the base station continuously transmits SSB to ensure UE detection, then the detection reliability is improved, but the power consumption increases
Solution Approach 1:
The base station transmits SSB periodically at specific time intervals rather than continuously, allowing the UE to detect synchronization signals at predetermined moments while reducing overall power consumption. The periodic transmission pattern balances detection reliability with energy efficiency.
Solution Approach 2:
The UE sends feedback information to the base station indicating whether SSB detection was successful. Based on this feedback, the base station adjusts its SSB transmission strategy, transmitting only when necessary to achieve detection, thereby reducing unnecessary power consumption while maintaining reliability.
2Reliability
If the UE transmits multiple SSB requests to ensure SSB detection, then the detection probability is improved, but the time delay increases
Solution Approach 1:
The UE transmits SSB requests in advance at predetermined time intervals before actually needing synchronization. This preliminary action ensures that the base station has sufficient time to process and transmit SSB, reducing overall detection time while maintaining high detection probability through multiple predetermined attempts.
Data Source
AI summary
The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method performed by a UE includes transmitting, to a base station, a first synchronization signal block (SSB) request; determining whether an SSB is detected from the base station; and in case that the SSB is not detected within a first time interval after transmitting the first SSB request, transmitting, to the base station, a second SSB request.