Logical Channel Restriction Using CS-RNTI in 5G Uplink
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current 5G communication systems face challenges in efficiently managing logical channels to meet diverse service requirements, such as high data transfer rates, massive machine-type communications, and ultra-reliable low-latency communications, which are not adequately addressed by existing technologies.
Innovation Solution
The proposed solution involves a method and apparatus for applying logical channel restrictions and priority configurations using configured scheduling-radio network temporary identifiers (CS-RNTI) and cell RNTI, allowing for dynamic allocation of uplink resources and applying physical layer priority configurations to ensure efficient resource usage and data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If logical channel priority configuration is applied to all uplink resources, then resource management flexibility is improved, but system complexity increases due to multiple RNTI types and configuration modes
Solution Approach 1:
The patent segments uplink resources into two distinct types: configured grant resources (for URLLC/mMTC) and dynamic grant resources (for eMBB). Each type has its own logical channel priority configuration rules. This segmentation allows tailored resource management for different service requirements without requiring complex unified configuration across all resource types.
Solution Approach 2:
The patent implements dynamic logical channel priority configuration where the priority values can be adjusted based on service requirements and resource types. The configuration is not static but can be modified through RRC signaling to adapt to changing network conditions and service demands, providing flexibility without permanent complexity.
2Productivity
If configured grant resources are allocated for URLLC and mMTC services, then data transmission efficiency is improved, but resource allocation complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring logical channel priorities and resource parameters through RRC signaling before actual data transmission. The configured grant resources are prepared in advance with predetermined priority levels, allowing immediate transmission without complex real-time allocation decisions, thus improving efficiency while managing complexity through upfront configuration.
Solution Approach 2:
The configured grant resources operate with self-service characteristics where the UE autonomously determines resource usage based on pre-configured parameters and logical channel priorities. The system enables self-service by allowing UEs to independently manage their configured grant resources according to service requirements without requiring continuous network intervention, reducing real-time allocation complexity.
3Productivity
If logical channel prioritization is applied dynamically, then resource usage efficiency is improved, but processing overhead increases
Solution Approach 1:
The patent applies local quality by implementing different logical channel prioritization strategies for different resource types and service categories. Instead of uniform dynamic prioritization across all resources, the system applies tailored priority rules locally to configured grant resources versus dynamic grant resources, and to different service types (URLLC, mMTC, eMBB), improving efficiency while reducing processing overhead through targeted rather than universal dynamic management.
Data Source
AI summary
The present disclosure relates to a method and apparatus for applying logical channel restriction in a wireless communication system. According to an embodiment of the present disclosure, an operation method of a terminal in a wireless communication system includes: receiving configuration information associated with restrictions for logical channels; and identifying, based on the configuration information, an uplink resource allocated with a configured scheduling-radio network temporary identifier (CS-RNTI), wherein when a value of a new data indicator (NDI) of the CS-RNTI is 0, the uplink resource is considered as a configured grant.