PRACH Configuration Segmentation for RedCap Terminals
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing communication systems face challenges in efficiently managing random access signals for terminals with varying capabilities, particularly in scenarios where multiple types of Reduced Capability NR Devices (eRedCap, RedCap, and non-RedCap) access a cell, leading to increased complexity and cost in testing and power consumption.
Innovation Solution
A method is introduced where a base station indicates a reduced number of PRACH configurations to terminals, allowing them to appropriately transmit random access signals by preferentially selecting configurations based on their type, thereby reducing complexity and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple PRACH configurations are provided for different terminal types, then all terminal types can appropriately transmit random access signals, but terminal complexity and testing burden increase
Solution Approach 1:
The patent segments the terminal population into different types (eRedCap, RedCap, non-RedCap) and provides differentiated PRACH configuration sets for each type. This segmentation allows each terminal type to use only the configurations relevant to its capabilities, reducing the testing burden while maintaining compatibility across all terminal types.
Solution Approach 2:
The patent applies local quality by providing different numbers and types of PRACH configurations to different terminal types based on their specific capabilities. For example, eRedCap terminals receive a different configuration set compared to non-RedCap terminals, optimizing each local context rather than applying a uniform configuration set to all terminals.
2Adaptability or versatility
If multiple PRACH configurations are provided for different terminal types, then appropriate random access signal transmission is enabled, but power consumption increases
Solution Approach 1:
By segmenting terminal types and providing differentiated PRACH configuration sets, terminals only need to process and test the configurations relevant to their type. This reduces the computational power required for testing and selecting appropriate configurations, thereby reducing overall power consumption while maintaining adaptability.
Solution Approach 2:
The patent implements partial action by providing terminals with only the subset of PRACH configurations they need based on their type, rather than providing all possible configurations to every terminal. This reduces the processing load and power consumption required for configuration evaluation and selection.
3Reliability
If multiple test items are required for different terminal types, then appropriate random access signal transmission is achieved, but testing cost and time increase
Solution Approach 1:
The patent segments the testing requirements by terminal type, so that each terminal type undergoes testing only on the PRACH configurations relevant to its capabilities. This segmentation maintains transmission reliability for each terminal type while significantly reducing the total number of test items and testing time required across the entire terminal population.
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
A terminal including: a reception circuit that receives information which is directed to a terminal of a first number of types and relates to a second number of settings for a random access signal, the second number being smaller than the first number; and a transmission circuit that transmits the random access signals on the basis of the information.