High Frequency Downlink Control Information Feedback Mechanism
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Solution Overview
Problem
Current methods for data transmission in mobile communications, particularly at high frequencies, face challenges in timely feedback of control information due to long transmission time intervals, which hinders the improvement of high-frequency downlink data transmission quality and increases terminal power consumption.
Innovation Solution
The method involves transmitting control information for high-frequency downlink data at a high frequency and uplink data at a low frequency, allowing for rapid feedback of control information to improve transmission quality while reducing terminal power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If downlink data is transmitted at a high frequency to achieve high data rate, then data transmission rate is improved, but feedback time becomes long due to long transmission time interval
Solution Approach 1:
The patent segments the transmission into two distinct frequency domains: high frequency for downlink data transmission to achieve high data rates, and low frequency for uplink control information feedback to achieve short transmission time intervals. This segmentation allows each transmission type to operate at its optimal frequency, resolving the contradiction between high data rate and short feedback time.
2Use of energy by moving object
If control information is transmitted at a low frequency to reduce power consumption, then power consumption is reduced, but feedback time becomes long which cannot improve transmission quality of high frequency downlink data
Solution Approach 1:
The patent divides the transmission functions across two frequency domains: low frequency is used for uplink control information transmission to minimize power consumption, while high frequency is used for downlink data transmission to maximize data rate. This segmentation enables the system to achieve both low power consumption and high transmission quality by matching each function to its optimal frequency domain.
3Device complexity
If both control information and uplink data are transmitted at a low frequency, then device complexity is reduced, but feedback speed is slow which hinders timely adjustment of high frequency downlink transmission
Solution Approach 1:
The patent segments the transmission tasks into two frequency domains: low frequency for control information feedback to maintain simple device operations, and high frequency for downlink data transmission to enable fast feedback. This segmentation resolves the contradiction by allowing simple low-frequency control channels to provide rapid feedback for high-frequency data transmission.
Data Source
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AI summary
A transmission control method is disclosed. The transmission control method includes: sending, by a base station, downlink data to a terminal at a high frequency when detecting that the downlink data needs to be transmitted at the high frequency; and sending, by the terminal to the base station at the high frequency, control information used for assisting the base station in improving transmission quality of the high frequency downlink data, so that the base station controls a transmission process of the high frequency downlink data according to the control information. Embodiments of the present invention further disclose a base station and a terminal. By means of the present invention, a terminal can rapidly feed back control information at a high frequency in a process in which downlink data is transmitted at a high frequency, and a feedback time is short.