Uplink Control Channel Overlap Handling in Wireless Terminals
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Solution Overview
Problem
In next-generation wireless communication systems, such as new radio access technology (NR), the occurrence of collisions or overlaps between uplink control channels and data channels or sound reference signals poses challenges in ensuring accurate transmission and preventing ambiguity in uplink control channel transmission.
Innovation Solution
The proposed method involves determining the overlap between different types of uplink control channels and data channels, and employing techniques like time division multiplexing, frequency division multiplexing, puncturing, and power control to manage these overlaps, ensuring efficient transmission by either piggybacking, puncturing, or dropping transmissions as necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple uplink control channels are transmitted simultaneously, then communication capacity is improved, but collision and overlap between channels occur causing transmission ambiguity
Solution Approach 1:
The patent segments the uplink control channel transmission by dividing it into different types (first type and second type) with distinct transmission timing configurations. This segmentation allows the system to handle different control information separately, avoiding collision and overlap between channels while maintaining high communication capacity.
Solution Approach 2:
The patent dynamically configures transmission timings for different types of uplink control channels based on their specific requirements. By making the transmission timing flexible and adaptable rather than fixed, the system can avoid collisions and overlaps while maintaining high productivity.
2Reliability
If transmission timing is configured for each uplink control channel type, then transmission accuracy is improved, but system complexity increases
Solution Approach 1:
The patent establishes a universal transmission timing configuration mechanism that can be applied to different types of uplink control channels. By creating a multi-functional framework that handles various channel types through a common approach, the system achieves high transmission accuracy without proportionally increasing complexity.
Solution Approach 2:
The patent changes the timing parameters differently for different types of uplink control channels. By adjusting specific parameters (transmission timing) based on channel type rather than redesigning the entire system, the patent achieves high reliability with minimal increase in system complexity.
3Reliability
If collision handling methods are implemented, then transmission reliability is improved, but processing time increases
Solution Approach 1:
The patent takes preliminary action by configuring different transmission timings for different types of uplink control channels before transmission occurs. This preventive approach avoids collisions entirely, eliminating the need for time-consuming collision handling processes and thus maintaining high reliability without increasing processing time.
Data Source
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AI summary
Provided are a method for a terminal transmitting an uplink control channel in a wireless communication system, and a device using same. The method comprises: determining the overlapping or not between a first physical uplink control channel (PUCCH) and a second PUCCH; and determining a transmission method for the first PUCCH and the second PUCCH on the basis of the determining. Here, the first PUCCH is an uplink control channel that is frequency division multiplexed (FDM) with a data channel, and the second PUCCH is an uplink control channel that is time division multiplexed (TDM) with the data channel.