Uplink Control Channel Switching for Flexible Multiplexing
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Solution Overview
Problem
Existing wireless access technologies face difficulties in flexibly multiplexing configurations of uplink control channels, particularly in switching between different physical channels with varying symbol and resource block allocations, which affects frequency use efficiency and terminal device capabilities.
Innovation Solution
A communication device and method that selectively switches between first and second physical channels with different symbol and resource block conditions, allowing for flexible multiplexing of uplink control channels by allocating these resources during a predetermined period in a time direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple uplink control channel configurations are multiplexed flexibly, then frequency use efficiency is improved, but device complexity increases
Solution Approach 1:
The patent implements dynamic switching between different physical uplink channel configurations (first and second physical channels) based on terminal device capabilities and network conditions. The control unit selectively switches between configurations with different symbol and resource block allocations, enabling flexible adaptation to various use cases while maintaining manageable complexity through structured switching logic.
Solution Approach 2:
The patent changes key parameters of uplink control channels including the number of symbols, number of resource blocks, and allocation patterns. By defining multiple configurations with different parameter sets and selectively switching between them, the system achieves flexible multiplexing that improves frequency use efficiency while keeping the switching mechanism organized and controllable.
2Adaptability or versatility
If uplink control channel configurations are switched according to terminal device capabilities, then adaptability is improved, but difficulty of detecting and measuring increases
Solution Approach 1:
The patent performs preliminary configuration by defining multiple uplink control channel configurations in advance, each with specific symbol and resource block allocations. The network side pre-configures these options and provides indication information to terminal devices, allowing capabilities-based switching without requiring complex real-time detection and measurement during operation.
Solution Approach 2:
The patent introduces indication information as an intermediary mechanism that carries configuration identifiers between the network side and terminal devices. This intermediary simplifies the detection and measurement process by providing explicit configuration pointers rather than requiring devices to detect and measure multiple potential configurations independently.
3Adaptability or versatility
If first and second physical channels with different symbol and resource block conditions are allocated, then flexibility is improved, but loss of time increases
Solution Approach 1:
The patent allocates first and second physical channels during predetermined periods in a time-directional manner, creating a periodic structure for configuration switching. This periodic allocation pattern allows the system to achieve flexibility through structured time-multiplexed configurations while minimizing time loss by establishing regular, predictable switching intervals rather than ad-hoc transitions.
Data Source
AI summary
To enable multiplexing configurations of a plurality of uplink control channels in a preferred mode in a communication system in which a base station device and a terminal device communicate with each other.A communication device includes: a communication unit configured to perform wireless communication; and a control unit configured to selectively switch between a first physical channel and a second physical channel in which both conditions of the number of symbols and the number of resource blocks are different from each other and which are allocated during a predetermined period in a time direction to transmit control information to a base station.