Uplink Control Information Transmission in 5G Terminals
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Solution Overview
Problem
In 5G communication systems, the existing methods for transmitting uplink control information are inefficient, particularly in dynamic frame structures, leading to collisions and reduced flexibility in scheduling, which limits low communication latency and flexibility of the base station scheduler.
Innovation Solution
A method where a terminal receives and determines uplink control information transmission based on its capability, multiplexes information when resources and channels are the same, and prioritizes transmission according to uplink information priority when resources and channels differ, ensuring efficient transmission and reception of uplink control information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing methods for transmitting uplink control information are used in dynamic frame structures, then transmission can be performed, but collisions occur and scheduling flexibility is reduced
Solution Approach 1:
The patent implements dynamic determination of uplink control information transmission resources based on terminal capability. The terminal dynamically selects between different transmission resources (first resource for capability-supported transmissions, second resource for fallback) based on real-time capability assessment, enabling adaptive scheduling that avoids collisions while maintaining flexibility in dynamic frame structures
Solution Approach 2:
The patent changes the resource allocation parameters based on terminal capability state. When the terminal supports the capability, it uses the first resource with associated parameters; when the capability is not supported, it switches to the second resource with different parameters. This parameter switching mechanism resolves the contradiction by adapting transmission parameters to terminal capabilities, preventing collisions while preserving scheduling flexibility
2Productivity
If uplink control information is transmitted without considering terminal capability, then transmission can proceed, but transmission efficiency is reduced due to collisions
Solution Approach 1:
The patent performs preliminary capability determination before transmitting uplink control information. The terminal first determines whether it supports the required capability, then selects the appropriate transmission resource accordingly. This preliminary action prevents collisions before they occur, thereby improving transmission efficiency without sacrificing reliability
Solution Approach 2:
The patent introduces terminal capability as an intermediary parameter that mediates between transmission requirements and resource selection. By using capability status as the deciding factor for resource selection, the system efficiently routes transmissions to appropriate resources, preventing collisions and improving overall transmission productivity
3Adaptability or versatility
If multiple downlink control information trigger the same uplink control information, then more scheduling options are available, but resource collision increases
Solution Approach 1:
The patent segments the uplink control information transmission resources into at least two distinct resources: a first resource for terminals with capability support and a second resource for terminals without capability support. This segmentation allows multiple downlink control information to trigger transmissions without collision, as each terminal type is directed to its designated resource, thereby maintaining scheduling versatility while eliminating resource conflicts
Data Source
AI summary
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The disclosure provides a method by which a terminal, during uplink signal transmission: receives, from a base station, first information for indicating transmission of uplink control information and/or data in a specific subframe; receives, from the base station, second information for indicating transmission of the uplink control information and/or the data in the specific subframe; and determines the uplink control information and/or the data to be transmitted in the specific subframe on the basis of a capability of the terminal and transmits the determined uplink control information and/or data in the specific subframe.