Random Access Frequency Resource Allocation for Reliable Connection Requests
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Solution Overview
Problem
The reliability of data transmission in the random access procedure of wireless communications systems, particularly for high-reliability and low-latency data such as URLLC, is not adequately met by existing technologies, leading to increased access delay and suboptimal user experience.
Innovation Solution
Configuring at least two frequency domain resources for transmitting connection resumption, establishment, or reestablishment requests, allowing the use of these resources independently or within the same or different Hybrid Automatic Repeat Request (HARQ) processes to enhance reliability and reduce delay.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single frequency domain resource is used for random access procedure, then device complexity is reduced, but transmission reliability deteriorates
Solution Approach 1:
The patent segments the frequency domain resource into multiple resources (first frequency domain resource and second frequency domain resource) and assigns them to different random access procedures (first random access procedure and second random access procedure). This segmentation allows the system to achieve higher transmission reliability by diversifying the frequency resources while maintaining manageable device complexity through structured resource allocation.
2Reliability
If multiple frequency domain resources are configured for connection requests, then transmission reliability is improved, but device complexity increases
Solution Approach 1:
The patent applies local quality by differentiating the configuration of first and second frequency domain resources based on the specific random access procedures they serve. Each frequency resource is optimized for its corresponding procedure type (connection establishment, resumption, or reestablishment), allowing the system to achieve high reliability for connection requests while managing complexity through targeted, procedure-specific resource allocation.
3Loss of time
If single frequency resource is used, then resource use efficiency is improved, but access delay increases
Solution Approach 1:
The patent implements dynamics by enabling the terminal to dynamically select between first and second frequency domain resources based on the type of random access procedure and current system conditions. This dynamic resource selection allows the system to reduce access delay for critical connection requests while maintaining overall resource use efficiency through flexible allocation strategies.
Data Source
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AI summary
This application provides a data transmission method and an apparatus. In this method, at least two frequency domain resources are configured for transmission of a connection resumption request, a connection establishment request, or a connection reestablishment request, and the connection resumption request, the connection establishment request, or the connection reestablishment request is sent by using the at least two frequency domain resources. According to this method, reliability of the transmission of the connection resumption request, the connection establishment request, or the connection reestablishment request can be improved by using a frequency selective gain.