SS Block Power Signaling via Grouping and Offset
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In 3GPP LTE/LTE-Advanced systems, signaling the transmission power of synchronization signals (SS) blocks requires a large number of bits, leading to significant signal overhead.
Innovation Solution
Categorizing SS blocks into groups and assigning a single power level to each group, with an optional offset from a reference power level, reducing the number of bits needed to signal power levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If transmission power of each SS block is individually signaled, then power control precision is improved, but signal overhead increases
Solution Approach 1:
The patent segments SS blocks into groups and applies power level signaling at the group level rather than individual block level. This segmentation reduces the number of bits required for signaling while maintaining adequate power control precision through group-based differentiation.
Solution Approach 2:
The patent changes the signaling parameter from individual SS block power levels to group-based power levels with offset values. This parameter transformation reduces the total number of bits required while preserving the ability to control power levels with sufficient precision for different transmission scenarios.
2Loss of information
If group-based power level signaling is used, then signal overhead is reduced, but power control flexibility deteriorates
Solution Approach 1:
The patent introduces dynamic offset values that can be applied to groups of SS blocks relative to a reference power level. This dynamic approach allows the system to adapt power levels flexibly within groups while using compact signaling, thereby maintaining power control flexibility despite the reduced overhead.
Solution Approach 2:
The patent adds a dimensional approach by introducing offset values as a separate signaling layer on top of group-based power levels. This additional dimension enables fine-grained power control flexibility while keeping the base signaling compact, effectively resolving the trade-off between overhead reduction and flexibility maintenance.
Data Source
AI summary
The present disclosure relates to methods and apparatuses. According to some embodiments of the disclosure, a method includes categorizing a number of synchronization signal (SS) blocks into M groups, each group having N SS blocks, wherein M and N are integers and assigning a power level for P transmitted group (s), wherein P is an integer and 1<=P<=M. The SS blocks in each of the P transmitted groups are transmitted in a same assigned power level.