Uplink Control Information Symbol Mapping for Wireless Terminals
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in transmitting uplink control information, particularly in multi-node cooperative communication systems, where channel state reporting and scheduling are not optimized, leading to suboptimal performance and resource allocation.
Innovation Solution
A method for determining the number of coded symbols based on payload size and mapping uplink control information to uplink resources, using parameters selected according to the payload size, and incorporating hybrid automatic repeat request (HARQ) ACK or rank indicator (RI), with options for extending resources or omitting content based on coding rate and high-layer signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the number of coded symbols is increased to transmit more uplink control information, then the payload capacity is improved, but the resource overhead and interference with data transmission increases
Solution Approach 1:
The patent implements dynamic adjustment of the number of coded symbols based on the actual payload size of uplink control information. The base station determines the appropriate number of coded symbols according to the payload size, allowing the system to adapt resource allocation to actual needs rather than using fixed allocation, thereby optimizing the balance between payload capacity and resource overhead
Solution Approach 2:
The patent changes the parameter of coded symbol count based on payload size conditions. When payload size exceeds a threshold, the number of coded symbols is increased; otherwise, it is reduced. This parameter adjustment mechanism enables flexible resource allocation that matches actual transmission requirements, improving efficiency by avoiding both over-allocation and under-allocation of resources
2Reliability
If uplink control information is transmitted with high reliability using more resources, then transmission reliability is improved, but the scheduling flexibility and resource utilization efficiency deteriorates
Solution Approach 1:
The system dynamically adjusts resource allocation for uplink control information based on real-time conditions including payload size and channel state. This dynamic approach ensures sufficient resources are allocated for reliable transmission when needed, while allowing resource release for other uses when control information payload is small, thereby maintaining both reliability and resource utilization efficiency
Solution Approach 2:
The patent employs parameter changes in the number of coded symbols allocated for uplink control information based on payload size thresholds. This conditional parameter adjustment ensures that transmission reliability is maintained by allocating adequate resources when necessary, while preventing resource waste when payload is small, thus optimizing the balance between reliability and productivity
3Productivity
If the number of coded symbols is dynamically adjusted based on payload size, then resource allocation efficiency is improved, but the system complexity and control signaling overhead increases
Solution Approach 1:
The patent implements a dynamic resource allocation mechanism where the base station determines the number of coded symbols based on payload size feedback from the terminal. This dynamic approach improves resource allocation efficiency by matching resource allocation to actual needs, while the complexity is managed through automated base station control rather than complex terminal-side processing
Solution Approach 2:
The system uses parameter changes in coded symbol count based on simple payload size thresholds. This approach achieves improved resource allocation efficiency through straightforward conditional logic at the base station, avoiding the need for complex algorithms or processing, thus limiting the increase in system complexity while maintaining high resource allocation efficiency
Data Source
AI summary
A method for transmitting uplink control information in a wireless communication system according to an embodiment of the present invention, which is performed by a terminal, may comprise the steps of: determining the number of coded symbols according to the payload size of uplink control information to be transmitted; and mapping the uplink control information to an uplink resource according to the determined number of the coded symbols, wherein the number of the coded symbols is determined using a parameter selected according to the payload size of the uplink control information to be transmitted.