Early Data Transmission Configuration Using UE Assistance Information
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Solution Overview
Problem
Existing 3GPP standards limit Early Data Transmission (EDT) to user equipment performing Low Power Wide Area (LPWA) communication, such as IoT devices, and there is a desire to extend EDT to smartphones and other user equipment with varying data transmission patterns, complicating network determination of appropriate configuration.
Innovation Solution
User equipment provides assistance information to the network to facilitate EDT configuration by predicting data size and pattern, allowing the network to determine optimal EDT settings, including recommended maximum data amounts and storage of data characteristics for future transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If EDT is limited only to LPWA user equipment, then network determination is simplified, but EDT cannot be applied to smartphones and other user equipment with varying data transmission patterns
Solution Approach 1:
The user equipment provides assistance information in advance about its data transmission characteristics (data size, transmission frequency, patterns) before the network needs to make EDT configuration decisions. This preliminary information provision enables the network to determine appropriate EDT settings more easily when configuring the user equipment, resolving the contradiction by shifting the information gathering action to an earlier stage.
2Productivity
If the network determines EDT configuration without assistance information, then the determination process is simpler, but the configuration cannot be optimized for user equipment with diverse data transmission patterns
Solution Approach 1:
The user equipment autonomously analyzes its own data transmission characteristics and generates assistance information about its transmission patterns, data sizes, and frequency. This self-service approach enables the network to make optimized EDT configuration decisions without requiring complex network-side analysis, thereby improving transmission efficiency while maintaining determination simplicity.
3Use of energy by moving object
If EDT is configured without considering user equipment data characteristics, then configuration is faster, but power consumption optimization and delay reduction are limited
Solution Approach 1:
The user equipment provides feedback information about its data transmission characteristics (size, frequency, patterns) to the network. The network uses this feedback to configure EDT parameters that are specifically optimized for each user equipment's data patterns, enabling better power consumption optimization and delay reduction while maintaining configuration efficiency.
Data Source
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AI summary
A communication control method according to an embodiment is a method for controlling specific data transmission in which a user equipment transmits or receives data of a predetermined size or smaller size during a random access procedure. The communication control method includes transmitting, by the user equipment in an RRC connected state, to a base station, assistance information for the base station to determine whether to perform, on the user equipment, data transmission configuration necessary for performing the specific data transmission, and in response to determining, based on the assistance information, to perform the data transmission configuration on the user equipment, transmitting, by the base station, to the user equipment, an RRC release message including configuration information indicating the data transmission configuration.