Terminal Device Predicts Uplink Data Timing
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Solution Overview
Problem
Existing mobile communication systems experience latency in transmitting uplink data due to the need for a terminal device to request resource allocation from a base station after data generation, leading to delays in actual data transmission.
Innovation Solution
A terminal device predicts the occurrence time of uplink data based on past communication data and regularity analysis, and transmits a scheduling request to the base station before the data actually occurs, requesting resource allocation in advance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the terminal device requests resource allocation from the base station after uplink data occurs, then the resource allocation process is simple and straightforward, but latency occurs before the uplink data is actually transmitted
Solution Approach 1:
The terminal device transmits a scheduling request to the base station before the uplink data is actually generated, based on prediction of data occurrence timing. This preliminary action allows the base station to allocate communication resources in advance, reducing the latency between data generation and transmission without significantly increasing protocol complexity
2Loss of time
If the terminal device transmits scheduling request before data occurrence, then latency is reduced, but the terminal device needs to predict data occurrence time which increases system complexity
Solution Approach 1:
The terminal device performs preliminary prediction of uplink data occurrence timing based on past communication data and regularity analysis. This prediction enables the device to transmit scheduling requests at optimal times before data generation, reducing waiting time while keeping the prediction mechanism relatively simple by leveraging historical patterns
3Productivity
If the terminal device requests resource allocation after data generation, then the resource allocation is precise to actual data needs, but the transmission efficiency is reduced due to latency
Solution Approach 1:
The terminal device transmits scheduling requests in advance based on predicted data occurrence times. The base station allocates communication resources before the actual data is generated, improving transmission efficiency by eliminating latency. The prediction mechanism ensures that resource allocation requests are made at appropriate times, balancing efficiency with reasonable allocation accuracy
Data Source
AI summary
According to one embodiment, a terminal device wirelessly communicates with a base station. The terminal device includes a controller and a communication device. The controller predicts a first time at which first data to be transmitted to the base station will occur. The communication device transmits a scheduling request to the base station at a second time before the first data actually occurs, based on the first time. The scheduling request requests allocation of a communication resource.