SSB-Based Small Data Transmission With Reduced Signaling Overhead
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Solution Overview
Problem
The high signaling overhead associated with small data transmissions in network communication leads to low transmission efficiency, particularly in scenarios involving massive terminal communication, due to the greater number of signaling transmissions and bytes compared to data packets.
Innovation Solution
The method involves advancing the timing of data packet transmission to occur after the cell search stage by using a Synchronization Signal Block (SSB) message to enable immediate data transmission post-cell synchronization, reducing signaling overheads and energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional signaling-based data transmission is used after initial access, then communication reliability is maintained, but signaling overhead increases and transmission efficiency decreases
Solution Approach 1:
The patent merges the data transmission function with the SSB message structure. Specifically, data packets are embedded within the SSB message framework, combining synchronization signaling and data transmission into a single unified message structure. This eliminates the need for separate signaling procedures, thereby reducing signaling overhead while maintaining transmission efficiency.
Solution Approach 2:
The SSB message is extended to serve multiple functions: it provides cell synchronization information (original function) and simultaneously carries data packets (new function). By making the SSB message multi-functional, the patent eliminates the need for additional dedicated signaling messages for small data transmissions, thus reducing overall signaling overhead.
2Loss of time
If traditional initial access process is completed before data transmission, then proper network connection is established, but data reception delay increases
Solution Approach 1:
The patent performs data transmission during the cell search stage, which occurs before the traditional initial access process is fully completed. By advancing the data transmission action to this earlier stage, the patent reduces data reception delay while the terminal device maintains sufficient connection reliability through the SSB-based transmission mechanism.
3Use of energy by moving object
If multiple signaling transmissions are performed for small data packets, then communication protocol compliance is maintained, but energy consumption increases
Solution Approach 1:
The patent combines multiple separate signaling transmissions into a single SSB message transmission. Instead of performing multiple distinct signaling procedures (system message reception, random access, etc.), the patent embeds data packets within the SSB message, reducing the number of transmissions required and thereby lowering energy consumption while maintaining protocol compliance.
Data Source
AI summary
Disclosed are a data transmission method, a device, a storage medium, and a program product. The data transmission method may include: acquiring a Synchronization Signal Block (SSB) message sent by a network device; and acquiring a data packet according to the SSB message.