Mini-slot Interval Configuration for Multi-panel 5G Terminals
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Solution Overview
Problem
In 5G communication systems, there is no effective solution for configuring the time domain interval between downlink transmissions when multiple antenna panels are used, leading to inefficiencies in data transmission due to either excessively long or insufficient time for beam switching between mini-slots.
Innovation Solution
The method involves determining mini-slot interval threshold values based on antenna capability information, allowing for optimal time domain positioning of mini-slots to ensure efficient data reception across multiple antenna panels, thereby improving transmission efficiency by setting appropriate time intervals between consecutive mini-slots.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the time domain interval between mini-slots is set too short, then transmission efficiency is improved, but beam switching cannot be completed leading to reception failures
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the time domain interval between mini-slots based on the terminal's antenna panel capability information. The base station determines whether the terminal can receive downlink data from multiple antenna panels simultaneously, and configures the mini-slot interval parameter accordingly - using shorter intervals when capability allows and longer intervals when beam switching is required, thus resolving the contradiction between transmission efficiency and beam switching completion.
2Reliability
If the time domain interval between mini-slots is set too long, then beam switching can be completed, but transmission efficiency decreases
Solution Approach 1:
The patent optimizes the mini-slot interval parameter by changing it according to terminal capability. When the terminal supports simultaneous reception from multiple antenna panels, the parameter is set to a shorter value to improve transmission efficiency. When the terminal requires beam switching, the parameter is extended to ensure reliable switching completion, thus balancing reliability and productivity.
3Reliability
If multiple antenna panels are used for downlink transmission, then coverage and reliability are improved, but configuration complexity of time domain intervals increases
Solution Approach 1:
The patent applies self-service by having the terminal autonomously determine its own antenna panel capability information and use this information to guide the base station's mini-slot interval configuration. The terminal reports its capability (whether it can simultaneously receive from multiple panels), and the base station automatically configures appropriate time domain parameters based on this reported information, reducing manual configuration complexity while maintaining reliability.
Data Source
AI summary
A method, apparatus, and a non-transitory computer-readable storage medium for downlink data transmission are provided. The method may be applied to a terminal. The terminal receives downlink control information. The downlink control information includes time domain locations of at least two mini-slots for downlink reception. The terminal may include N antenna panels. N may be an integer greater than or equal to 1. The time domain location of the at least one mini-slot may be determined according to the information of a mini-slot interval threshold. The information of the mini-slot interval threshold may be determined according to the antenna capability information of N antenna panels. The information of the micro-slot interval threshold may be used to indicate the minimum time domain interval between adjacent mini-slots where the terminal receives downlink data.