Wireless System Information Transmission for Reduced-Capability Devices
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Solution Overview
Problem
Current radio access systems, such as 5G NR, are not optimized for reduced capability devices with limited downlink bandwidth, posing challenges for supporting low-cost and low-complexity devices like industrial sensors and smart wearables.
Innovation Solution
Implementing specific system information transmission methods for reduced capability devices, including separate identifiers, resource allocation, and indicators to ensure effective communication, such as using SI-RNTI and DCI for scheduling and indicating system information changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If radio access systems are designed for normal devices with larger downlink bandwidth, then system information transmission efficiency is improved, but reduced capability devices with limited downlink bandwidth cannot be supported
Solution Approach 1:
The patent segments system information transmission by creating separate SI instances for different device types. Normal devices receive SI with first instance values while reduced capability devices receive SI with second instance values, allowing tailored optimization for each device category without compromise
Solution Approach 2:
The patent applies local quality by providing different system information configurations to different device types based on their specific capabilities. Each device type receives customized SI parameters (such as bandwidth, scheduling configurations) matched to its local requirements rather than a universal configuration
2Adaptability or versatility
If separate system information instances are transmitted for different device types, then support for reduced capability devices is improved, but system complexity increases
Solution Approach 1:
The patent implements universality by using a common SI transmission framework that handles multiple device types. The base station maintains a unified SI structure with instance values that can represent different device categories, allowing one system to serve multiple purposes without requiring completely separate transmission channels
3Adaptability or versatility
If system information is customized for reduced capability devices with limited bandwidth, then device compatibility is improved, but information transmission resource usage increases
Solution Approach 1:
The patent merges system information transmission resources by consolidating SI for different device types into unified SI messages. Rather than transmitting completely separate SI sets, the system combines information with instance values that encode different configurations, reducing overall resource consumption while maintaining device-specific compatibility
Data Source
AI summary
Method, systems and devices for transmitting system information in a wireless communication system are disclosed. The wireless communication method comprises transmitting a specific information associated with system information, SI, related to a first wireless terminal in a cell, wherein the SI related to the first wireless terminal comprise an instance different from the instance the SI related to a second wireless terminal.