Scheduling Request Configuration for Secondary Cells in 5G Terminals
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In 5G communication systems, configuring and transmitting a scheduling request on a secondary cell is challenging, especially when uplink control information is transmitted on both primary and secondary cells, as existing technologies do not effectively manage the scheduling request process, leading to inefficiencies in data transmission.
Innovation Solution
A method and apparatus for a terminal to receive and transmit scheduling requests, involving the configuration of scheduling request (SR) information for both primary and secondary cells, using specific timer settings to optimize SR transmission on secondary cells, allowing for efficient data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If scheduling request is transmitted on secondary cell, then uplink transmission capability is improved, but configuration complexity increases
Solution Approach 1:
The patent divides the scheduling request configuration into separate components: sr-ConfigIndex for resource allocation and sr-ProhibitTimer for timing control. This segmentation allows independent optimization of each parameter, reducing overall configuration complexity while maintaining enhanced uplink capability on secondary cells
Solution Approach 2:
The patent introduces dynamic timer-based control (sr-ProhibitTimer) that adapts the scheduling request transmission behavior based on current system conditions. This dynamic mechanism allows the system to flexibly manage SR transmissions on secondary cells, improving uplink capability while managing configuration complexity through adaptive rather than static parameters
2Productivity
If SR timer is configured for secondary cell, then scheduling request efficiency is improved, but system complexity increases
Solution Approach 1:
The patent creates a universal timer configuration mechanism (sr-ProhibitTimer) that can be applied to both primary and secondary cells with the same functional logic. This multi-functional approach improves SR efficiency across all cell types while avoiding the need for separate complex control systems, thereby limiting the increase in system complexity
3Productivity
If scheduling request configuration is added for secondary cell, then data transmission rate is improved, but signaling overhead increases
Solution Approach 1:
The patent uses parameter-based configuration (sr-ConfigIndex, sr-ProhibitTimer) that can be adjusted numerically to optimize data transmission rates. By changing numerical parameters rather than adding structural elements, the system achieves higher data rates while minimizing the increase in signaling overhead, as parameter values require less signaling than structural reconfigurations
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present invention provides a method performed by a terminal in a wireless communication system, and a terminal in a wireless communication system.