Random Access Resource Configuration for NR-Lite UEs
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current 5G NR systems are designed for high-end terminals and fail to meet the requirements of low-cost, low-complexity, and power-saving needs for mid-end IoT devices, such as NR-lite, which necessitate enhanced coverage and optimized resource allocation.
Innovation Solution
The implementation of a communication method and apparatus that supports multiple sets of random access resources within a cell, allowing base stations to configure and send specific random access configuration information to user equipment (UE) based on its type and state, enabling UE to determine appropriate random access resources and transmission parameters for efficient communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If 5G NR systems are designed for high-end terminals with standard random access resources, then communication performance is improved, but device complexity and power consumption increase, making it unsuitable for low-cost mid-end IoT devices
Solution Approach 1:
The patent segments random access resources into multiple sets (first set for first-type UEs, second set for second-type UEs) with different coverage capabilities. This segmentation allows mid-end IoT devices to use a simplified random access configuration with fewer resources, reducing device complexity and power consumption while maintaining adequate communication performance for their specific requirements.
Solution Approach 2:
The patent applies local quality by providing different random access resource configurations tailored to specific UE types. Second-type UEs (mid-end IoT devices) receive a customized random access configuration with appropriate coverage enhancement parameters, ensuring they get the right level of performance without the overhead of high-end terminal configurations.
2Reliability
If standard random access resources are allocated to all UEs, then coverage capability is sufficient for high-end terminals, but resource allocation efficiency decreases for mid-end IoT devices
Solution Approach 1:
The patent implements dynamic resource allocation by configuring different random access resource sets based on UE type and state. The base station can dynamically select which random access resources to allocate to second-type UEs based on their specific coverage requirements, improving resource allocation efficiency compared to static allocation of standard resources to all devices.
Solution Approach 2:
The patent changes key random access parameters (such as coverage enhancement levels, resource sizes, and configuration details) to create optimized random access configurations for mid-end IoT devices. These parameter adjustments enable efficient resource utilization while maintaining sufficient coverage capability for the specific requirements of second-type UEs.
3Reliability
If multiple sets of random access resources are configured for different UE types, then coverage enhancement for mid-end IoT devices is improved, but system complexity increases
Solution Approach 1:
The patent achieves universality by designing a random access resource configuration system that serves multiple UE types through a unified framework. The base station maintains multiple random access resource sets but uses a single configuration mechanism that can adapt to different UE types, avoiding the need for completely separate systems for high-end and mid-end devices.
Solution Approach 2:
The patent applies preliminary action by pre-configuring multiple random access resource sets in advance, each optimized for specific UE types. This allows the system to provide enhanced coverage for mid-end IoT devices without increasing runtime complexity, as the differentiation is established beforehand through configuration rather than complex real-time decision-making.
Data Source
AI summary
In order to better meet access requirements of wireless user equipment (UEs) such as a reduced capability UE or NR-lite, a communication method in a wireless communication network includes receiving random access configuration information, wherein the random access configuration information comprises configuration information of at least one set of random access resources; and determining at least one of random access resources and transmission parameters associated with random access according to the random access configuration information. The random access configuration information may be received according to state information such as capability or channel state information.