Uplink Data Transmission Method Reducing Delay in Wireless Systems
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face challenges in reducing end-to-end data transmission delays, particularly in delay-sensitive industrial scenarios, due to processing and transmission delays in wired and wireless networks.
Innovation Solution
A data transmission method and device that allows user equipment to send control information to a base station using an uplink transmission resource to request uplink scheduling, and then sends uplink data using the received scheduling information, simplifying the data transmission process and reducing delays by eliminating the need for explicit scheduling requests.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional uplink scheduling procedure is used, then scheduling reliability is improved, but data transmission delay increases
Solution Approach 1:
The base station performs preliminary action by allocating uplink resources in advance and configuring the terminal with default uplink scheduling parameters. When data needs to be transmitted, the terminal can directly use these pre-configured resources without going through the complete scheduling request-grant cycle, thereby reducing transmission delay while maintaining scheduling reliability through the pre-established resource allocation framework.
Solution Approach 2:
The invention extracts and eliminates the explicit scheduling request step from the traditional uplink scheduling procedure. By removing this intermediate step and allowing the terminal to directly transmit data using pre-configured resources, the patent reduces the time required for scheduling while the base station maintains control through implicit resource allocation and monitoring mechanisms.
2Extent of automation
If explicit scheduling request is added, then scheduling control is improved, but transmission delay increases
Solution Approach 1:
The terminal performs self-service by autonomously selecting and using pre-configured uplink resources for data transmission without requiring explicit scheduling requests. The terminal independently manages its own resource allocation based on pre-established configurations, eliminating the need for base station-initiated scheduling commands and reducing transmission delay while maintaining controlled resource usage through terminal responsibility mechanisms.
Solution Approach 2:
The invention merges the scheduling control function with the resource allocation function. Instead of separate scheduling requests and grants, the patent combines these into a unified pre-configured resource allocation system where the base station simultaneously performs both scheduling decisions and resource assignment, eliminating the sequential delay between request and grant while maintaining comprehensive scheduling control.
Data Source
Figure 1~4
Figure 5~7
Figure 8~9
AI summary
The present invention discloses a data transmission method and device. When user equipment needs to send uplink data to a base station device, but the base station has not triggered uplink scheduling for the to-be-sent data of the user equipment, a first solution is proposed: Control information is sent by using an uplink transmission resource, then uplink scheduling information is obtained from the base station, and the uplink data is sent to the base station by using the uplink scheduling information. A second solution is also proposed: The uplink data is sent to the base station by using common uplink scheduling information configured by the base station. The two solutions simplify a procedure for uplink data transmission between the user equipment and the base station, so that a data transmission delay is reduced, and system performance is improved.