Early Data Transmission Control via Downlink Size Decision
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing Mobile Terminated (MT)-Early Data Transmission (EDT) procedure in wireless communication systems does not consider data size and mobility scenarios, leading to inefficiencies and increased latency when a wireless device moves to a new radio access network node, as the new node lacks context information for reactivating security and managing data transmission.
Innovation Solution
A method where a first core network node determines the initiation of an EDT procedure based on downlink data size and transmits a paging message to the radio access network node, including information such as a Resume ID to facilitate context retrieval from the old node, enabling efficient data transmission and reducing latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If MT-EDT procedure is initiated without considering data size, then data transmission can proceed, but network resources are wasted when data size is large
Solution Approach 1:
The patent applies parameter changes by introducing data size as a decision parameter for initiating MT-EDT procedure. The network node determines whether to initiate MT-EDT based on comparing the actual data size against a threshold value, thereby adapting the transmission procedure to the specific data size parameter rather than using a fixed procedure for all data sizes.
2Loss of time
If MT-EDT procedure is used without mobility consideration, then transmission latency is reduced, but context retrieval is required when device moves to new RAN node
Solution Approach 1:
The patent applies preliminary action by having the network node determine and decide on initiating MT-EDT procedure before actual data transmission begins. This advance decision, based on data size evaluation, allows the system to prepare appropriate transmission parameters and procedures in advance, avoiding the need for context retrieval when the device moves to a new RAN node.
3Speed
If EDT procedure is initiated without data size check, then transmission starts quickly, but device battery is drained for unnecessary transmissions
Solution Approach 1:
The patent applies preliminary action by performing data size evaluation and decision-making before initiating the EDT procedure. This preliminary check ensures that EDT is only started when appropriate (small data sizes), preventing unnecessary transmissions that would drain device battery while maintaining quick transmission start when conditions are favorable.
Data Source
AI summary
A method and apparatus for controlling mobile early data transmission (EDT) procedure in a wireless communication system is provided. A first core network node, in a wireless communication, receives, from a second core network node, a message for a downlink Data including a size of the downlink data. The first core network node determines whether to initiate an early data transmission (EDT) procedure for the downlink data based on the size of the downlink data. The first core network node transmits, to a radio access network (RAN) node, a paging message including information related to the EDT procedure for the downlink data based on the decision to initiate the EDT procedure for a wireless device.