PUCCH Resource Segmentation for Multicarrier Load Management
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Solution Overview
Problem
Existing technologies face challenges in efficiently managing multiple physical uplink control channel (PUCCH) groups in multicarrier communication systems, leading to high PUCCH load on primary cells and potential interference issues.
Innovation Solution
The implementation of multiple PUCCH groups, where cells can be grouped into primary and secondary PUCCH groups, allowing PUCCH transmissions on both primary and secondary cells to offload resources from primary cells and reduce interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple PUCCH groups are implemented to distribute load, then system capacity and interference management are enhanced, but device complexity and resource configuration complexity increase
Solution Approach 1:
The patent divides the PUCCH resources into multiple groups (first PUCCH group and second PUCCH group) associated with different cell groups. Each group can be independently configured and managed, allowing the system to distribute control channel loads across multiple cells rather than concentrating all PUCCH transmissions on a single primary cell. This segmentation enables enhanced system capacity while maintaining manageable complexity through modular resource organization.
2Ease of operation
If PUCCH transmissions are concentrated on primary cells, then configuration is simplified, but interference issues and resource bottlenecks occur
Solution Approach 1:
By segmenting PUCCH resources into multiple groups associated with different cell groups, the patent distributes control channel transmissions across multiple cells. This reduces the concentration of PUCCH transmissions on primary cells, thereby reducing interference and resource bottlenecks while maintaining relatively simple configuration through standardized group management procedures.
3Productivity
If multiple PUCCH groups are configured across different cells, then resource distribution is improved, but management complexity and control overhead increase
Solution Approach 1:
The patent organizes PUCCH resources into distinct groups that can be independently managed and configured. Each PUCCH group is associated with specific cell groups, enabling granular control over resource distribution. This segmented approach improves resource distribution efficiency by allowing flexible allocation across cells while managing complexity through standardized group-based management procedures rather than individual resource management.
Solution Approach 2:
The patent implements a universal PUCCH group management framework that can be applied across multiple cells and cell groups. The same management principles and procedures are used regardless of which specific cells are involved, making the system scalable and reducing management complexity through consistency. This multi-functional approach allows the same resource management mechanisms to serve multiple purposes across different cell configurations.
Data Source
AI summary
A base station transmits configuration parameters of a plurality of cells grouped into a primary physical uplink control channel (PUCCH) group comprising a primary cell with a primary PUCCH, and a secondary PUCCH group comprising a PUCCH secondary cell with a secondary PUCCH. The base station transmits, for a cell in the plurality of cells, downlink control information comprising a PUCCH transmit power control (TPC) command and scheduling information for the cell, wherein a downlink control information format of the downlink control information does not have a downlink control information format 3 and a downlink control information format 3A. The base station receives uplink signals with a transmit power calculated, for one of the primary PUCCH or the secondary PUCCH, employing the PUCCH TPC command, wherein the one of the primary PUCCH or the secondary PUCCH is determined based on whether the cell is the primary cell or the PUCCH secondary cell.