Uplink Resource Selection for Random Access in 5G NR
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Solution Overview
Problem
Current 5G New Radio (NR) networks face challenges in efficiently selecting uplink resources for random access procedures, particularly in supporting both single active and multiple initial uplink bandwidth parts (BWP) functionality, which is essential for enhanced user equipment (UE) designs compatible with NR networks.
Innovation Solution
The method involves identifying and selecting uplink resources based on various parameters with different potential values, allowing user equipment (UE) to choose the appropriate resource within an uplink bandwidth part (BWP) for transmitting random access procedure communications, while the base station supports multiple parameters for enabling efficient random access procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple initial uplink bandwidth parts (BWP) are supported, then adaptability and versatility are improved, but device complexity increases
Solution Approach 1:
The patent implements dynamic selection of uplink resources based on parameter values. The UE can dynamically choose between single active BWP and multiple initial BWP configurations by identifying parameters from a plurality of different parameters and selecting UL resources based on corresponding values, allowing the system to adapt to different scenarios without permanent structural complexity
Solution Approach 2:
The patent uses parameter-based resource selection where different parameter values determine different uplink resource configurations. By changing parameter values rather than physical structure, the system achieves versatility while maintaining manageable device complexity through software-controlled configuration
2Productivity
If uplink resources are selected based on multiple parameters with different values, then random access procedure efficiency is improved, but the complexity of resource selection increases
Solution Approach 1:
The patent performs preliminary identification of parameters and their potential values before actual resource selection. By pre-identifying the parameter set and their possible values, the UE simplifies the subsequent resource selection process, making it more efficient while managing complexity through structured preliminary analysis
Solution Approach 2:
The patent divides the resource selection process into distinct segments: identifying parameters, determining their values, and selecting UL resources based on those values. This segmentation of the selection process into manageable steps reduces overall complexity while maintaining high efficiency through systematic progression
Data Source
AI summary
Various aspects directed towards performing a random access procedure are disclosed. In one example, a parameter is identified from a plurality of parameters, and an uplink (UL) resource associated with a random access procedure is selected based on a value associated with the parameter. A random access procedure communication is then transmitted via the selected UL resource. In another example, different parameters are supported by a scheduling entity such that each of the parameters has a corresponding plurality of different potential values. Here, the scheduling entity enables a scheduled entity to select an UL resource to perform a random access procedure based on a value corresponding to a particular one of the parameters. A random access procedure communication is then received from the scheduled entity via the UL resource.