Random Access Message Repetition Configuration for Coverage
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Solution Overview
Problem
Reduced capability terminals, such as NR-lite terminals, face challenges in achieving enhanced uplink transmission coverage due to insufficient coverage, necessitating innovative methods for indicating and managing the repetition of random access messages to improve communication efficiency.
Innovation Solution
A method and apparatus for indicating the configuration of random access message repetition between base stations and terminals, utilizing first indication information to specify the number of repetitions and resource allocation, allowing terminals to perform or receive repeated messages based on enhanced coverage requirements, with the information carried in existing or newly added fields within random access messages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If repetition of random access message is performed to enhance coverage, then coverage is improved, but resource consumption increases
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the repetition configuration parameters (number of repetitions, time interval, frequency resource) based on terminal capability indicators and coverage requirements. This allows the system to optimize the balance between coverage enhancement and resource consumption by selecting appropriate parameter combinations for different terminal types and channel conditions.
Solution Approach 2:
The patent implements dynamics by making the repetition configuration adaptive rather than fixed. The base station determines the repetition configuration dynamically based on terminal capability information and channel conditions, allowing the system to respond to changing requirements and optimize resource usage in real-time while maintaining adequate coverage.
2Productivity
If repetition configuration is customized for different terminals, then communication efficiency is improved, but system complexity increases
Solution Approach 1:
The patent applies segmentation by dividing terminals into different categories based on their capabilities (e.g., reduced capability terminals versus normal terminals). Each segment receives customized repetition configuration appropriate to its characteristics, allowing efficient communication tailored to specific terminal types while managing system complexity through structured classification.
Solution Approach 2:
The patent implements local quality by providing different repetition configurations to different terminal segments based on their specific requirements. Instead of a uniform configuration for all terminals, the system applies localized optimization where each terminal group receives the appropriate level of repetition and resource allocation matching its capability and coverage needs.
3Adaptability or versatility
If indication information for repetition is added to random access message, then configuration flexibility is improved, but message complexity increases
Solution Approach 1:
The patent applies merging by integrating the repetition indication information into the existing random access message structure rather than creating a separate message. This combines multiple functions (random access and repetition configuration indication) into a single message transmission, improving configuration flexibility while minimizing the increase in message complexity through efficient use of existing message fields.
Data Source
AI summary
A method for indicating repetition of a random access message is applicable to a base station, and includes: sending first indication information to a terminal, wherein the first indication information is configured to indicate a configuration for the repetition of the random access message.