Secondary Cell PUCCH Group Offloading for Wireless Device
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Solution Overview
Problem
Current multicarrier communication systems face challenges in efficiently managing multiple physical uplink control channel (PUCCH) groups, leading to high PUCCH load on primary cells and potential bottlenecks in resource allocation and transmission.
Innovation Solution
The implementation of multiple PUCCH groups, where secondary cells can offload PUCCH resources from primary cells, allowing for flexible configuration and distribution of CSI reports and HARQ feedbacks across PUCCH cells, reducing the load on primary cells and enhancing capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple PUCCH groups are implemented with secondary cells offloading PUCCH resources from primary cells, then network capacity and resource distribution are improved, but device complexity and configuration management become more complex
Solution Approach 1:
The patent segments the PUCCH resources by creating multiple PUCCH groups, where each group is associated with a specific cell (primary or secondary). This segmentation allows PUCCH resources to be distributed across multiple cells rather than concentrated on the primary cell, thereby increasing network capacity while providing a structured framework for managing the complexity through organized group associations.
2Device complexity
If PUCCH resources are concentrated on primary cells, then configuration management is simplified, but network capacity and resource utilization become bottlenecks
Solution Approach 1:
The patent extracts PUCCH resources from the primary cell and relocates them to secondary cells by creating separate PUCCH groups. This extraction relieves the bottleneck on primary cells, enabling greater network capacity and improved resource utilization, while the extracted resources are systematically managed through the PUCCH group structure.
3Productivity
If secondary cells are continuously activated for PUCCH transmission, then network capacity is enhanced, but power consumption increases
Solution Approach 1:
The patent implements dynamic activation and deactivation of secondary cells based on PUCCH transmission needs. Secondary cells can be activated when PUCCH resources are required and deactivated when not needed, allowing the system to enhance network capacity on demand while minimizing power consumption by keeping secondary cells dormant when their PUCCH resources are not required.
Data Source
AI summary
A base station may communicate with a wireless device via a control channel group. Deactivation of a state of a control channel secondary cell, of the control channel group, may cause the wireless device to alter usage of the control channel group.