Uplink Control Channel Formats by Symbol Count for Diverse Services
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Solution Overview
Problem
Existing technologies face challenges in designing flexible uplink control channels for next-generation wireless networks to meet the diverse requirements of various usage scenarios such as enhanced mobile broadband, massive machine-type communication, and ultra-reliable and low latency communication, necessitating efficient radio resource utilization.
Innovation Solution
The method involves configuring uplink control channels with multiple formats based on the number of symbols, allowing user equipment to transmit uplink control information efficiently by classifying channels into short and long PUCCH formats, and allocating resources based on payload size and transmission types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single fixed uplink control channel format is used, then the channel structure is simple, but it cannot meet the diverse requirements of various usage scenarios (eMBB, mMTC, URLLC)
Solution Approach 1:
The uplink control channel is segmented into multiple formats (first uplink control channel format and second uplink control channel format) with different durations and characteristics. Each format is optimized for specific usage scenarios, allowing the system to segment the control channel functionality to match diverse service requirements without creating a single monolithic channel structure.
Solution Approach 2:
The system dynamically selects between different uplink control channel formats based on the specific usage scenario and service requirements. The base station configures which formats are available, and the user equipment dynamically switches between formats depending on the transmission needs, making the channel structure adaptive rather than fixed.
2Adaptability or versatility
If multiple uplink control channel formats are configured to meet different usage scenarios, then the adaptability to various scenarios is improved, but the device complexity increases
Solution Approach 1:
Multiple uplink control channel formats are designed to serve universal purposes across different usage scenarios. Each format can be configured for different purposes (eMBB, mMTC, URLLC) depending on the base station configuration, allowing the same set of formats to handle multiple functions and scenarios without requiring separate dedicated channels for each service type.
Solution Approach 2:
The system changes parameters such as channel duration, resource allocation, and configuration options to adapt to different usage scenarios. By modifying these parameters rather than creating entirely new channel structures, the system achieves flexibility while controlling complexity through parameter variation rather than structural proliferation.
3Adaptability or versatility
If radio resources are allocated to support multiple channel formats, then the ability to satisfy diverse service requirements is improved, but the radio resource utilization efficiency may deteriorate
Solution Approach 1:
The base station performs preliminary configuration by pre-configuring which uplink control channel formats are available and their associated resource allocations. This preliminary setup allows the system to efficiently allocate resources in advance based on expected usage scenarios, avoiding reactive resource allocation that would be less efficient.
Solution Approach 2:
The system dynamically allocates radio resources based on the actual usage scenario and selected channel format. By making real-time decisions about which format to use and how to allocate resources accordingly, the system optimizes resource utilization efficiency while maintaining the ability to support diverse service requirements.
Data Source
AI summary
Provided is a method for a terminal for transmitting uplink control data. The method includes receiving, from a base station, at least one of UL control channel resource set configuration information and UL control channel transmission information, configuring an UL control channel including the UL control information based on at least one of the UL control channel resource set configuration information and the UL control channel transmission information, and transmitting the UL control channel to the base station. The UL control channel is configured with one or more UL control channel formats based on the number of symbols that configure the UL control channel.