Base Station Timing Allocation for Terminal Data Upload Conflict Avoidance
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Solution Overview
Problem
Conventional interphone systems face challenges in avoiding air interface conflicts during data uploading, especially when the service load is high, leading to unreliable channel usage and reduced success rates of services.
Innovation Solution
A data transmission method where a base station issues timing parameters, and terminals determine their data upload time based on these parameters, ensuring that each terminal's upload time does not conflict with others, thus avoiding air interface conflicts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If terminals use random back-off mode to alternately use the channel, then the system is simple to operate, but air interface conflicts occur when service load is large
Solution Approach 1:
The base station performs preliminary action by issuing timing parameters in advance before terminals need to transmit data. These timing parameters are calculated and distributed to terminals beforehand, allowing terminals to determine their exact transmission timing without random back-off, thereby preventing air interface conflicts while maintaining operational simplicity.
2Adaptability or versatility
If terminals spontaneously preempt the channel by monitoring usage conditions, then terminals can initiate services asynchronously, but air interface conflicts occur during transmission
Solution Approach 1:
The base station issues timing parameters in advance that specify exact transmission timing for each terminal. This preliminary timing arrangement allows terminals to maintain asynchronous service initiation flexibility while avoiding conflicts, as each terminal knows its precise transmission slot beforehand rather than attempting to preempt the channel.
Solution Approach 2:
The base station provides feedback in the form of timing parameters to each terminal, allowing terminals to adjust their transmission timing based on system-wide timing information. This feedback mechanism enables reliable channel access while maintaining the ability for terminals to initiate services at appropriate times without causing conflicts.
3Productivity
If terminals report data periodically to satisfy real-time information requirements, then data updating efficiency improves, but air interface conflicts increase with large numbers of terminals
Solution Approach 1:
The base station calculates and issues timing parameters in advance for each terminal's periodic data reporting. These parameters ensure that when terminals transmit their periodic updates, they do so at predetermined non-overlapping times, allowing high data updating efficiency with large numbers of terminals without causing air interface conflicts.
Data Source
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AI summary
The present application discloses a data transmission method, and relates to the field of communications. The method includes: receiving, by a terminal, a timing indication message issued by a base station, where the timing indication message includes timing parameters used for terminal data uploading; determining data upload time of the terminal on the basis of the timing parameters; and uploading data by using the data upload time. According to the method, a base station issues timing parameters, and a terminal determines data upload time by taking the timing parameters as a reference and uploads data; because timing parameters are uniformly allocated by the base station, each terminal can obtain upload time not conflicting with that of other terminals, and thus the problem of channel air interface conflict is avoided.