Power Determination for Random Access Mode Switching
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In LTE and NR communication systems, User Equipment (UE) faces challenges in efficiently switching between different transmission modes during random access, leading to suboptimal transmission performance and access efficiency due to the lack of a systematic approach for determining transmission power during mode transitions.
Innovation Solution
A power determination method that calculates a power ramping amount based on the count values and steps of both the first and second transmission modes, allowing for precise determination of transmission power when switching between these modes, thereby enhancing transmission performance and access efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the UE switches between different transmission modes during random access, then the access flexibility is improved, but the transmission performance deteriorates due to lack of systematic power determination
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the power ramping count value and power ramping step based on the transmission mode. When switching between 2-step RACH and 4-step RACH, the UE modifies the power determination parameters (power ramping count value and power ramping step) to match the current transmission mode, ensuring optimal transmission performance while maintaining access flexibility
Solution Approach 2:
The patent implements dynamics by making the power determination process adaptive to transmission mode changes. The UE dynamically selects and applies different power ramping parameters depending on whether it is operating in 2-step RACH or 4-step RACH mode, allowing the system to respond flexibly to changing access conditions while maintaining reliable transmission
2Productivity
If the UE performs multiple random access attempts with different transmission modes, then the access efficiency is improved, but the power control complexity increases
Solution Approach 1:
The patent applies universality by creating a unified power determination framework that handles both 2-step RACH and 4-step RACH modes through a single set of power control procedures. The same power determination apparatus and methodology can be universally applied across different transmission modes, reducing power control complexity while maintaining access efficiency
Solution Approach 2:
The patent implements preliminary action by pre-configuring the power ramping parameters and establishing the power determination logic before random access attempts begin. The UE prepares the power control mechanism in advance, setting up the framework for handling mode switches, which simplifies the actual power control execution during multiple random access attempts
Data Source
AI summary
Disclosed are a power determination method, a power determination apparatus, a terminal and a storage medium. The power determination method includes: acquiring a power ramping amount according to a power ramping count value and a power ramping step, where the power ramping count value includes a power ramping count value of a first transmission mode and a power ramping count value of a second transmission mode; and determining a transmission power according to the power ramping amount.