UE Context Forwarding for Wireless Connection Resumption
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Solution Overview
Problem
Current wireless communication networks face inefficiencies in resuming connections between wireless communication devices and radio base stations, particularly when a device moves from a source base station to a target base station, as the target station must fetch UE context information from the source station, leading to delayed connection setup and potential data buffering.
Innovation Solution
The method involves the source radio base station acquiring an indication of a connection release, identifying a target base station, and transmitting the necessary UE context information to the target base station before releasing the connection, allowing for a faster resumption of the connection upon reconnection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the target base station fetches UE context information from the source base station after connection release, then the source base station can release the connection and free resources, but the connection setup time is increased and data buffering is required
Solution Approach 1:
The source base station performs preliminary action by forwarding the UE context information to the target base station before releasing the connection. This advance preparation eliminates the need for the target base station to fetch context information after connection release, thereby reducing connection setup time and eliminating data buffering requirements.
2Reliability
If the source base station stores UE context information after connection release, then the information is available for fast resumption, but the target base station must fetch the information which delays connection setup
Solution Approach 1:
Instead of storing UE context information at the source base station and requiring fetch operations later, the invention applies preliminary action by proactively forwarding the context information to the target base station before connection release. This ensures both reliability of context availability and minimizes setup time by eliminating the fetch operation.
3Productivity
If the target base station fetches UE context information after connection release, then the source base station can free resources, but data buffering is required during the fetch period
Solution Approach 1:
The source base station performs preliminary action by forwarding UE context information to the target base station before releasing the connection. This advance transfer eliminates the need for data buffering during the connection setup phase, as the target base station already possesses the necessary context information when the connection is resumed.
Data Source
AI summary
The invention relates to methods and devices for enabling a connection of a wireless communication device released by a source radio base station to be resumed by a target radio base station. In a first aspect, a method of a source radio base station of enabling a connection of a wireless communication device released by the source radio base station to be resumed by a target radio base station is provided. The method comprises acquiring an indication that a connection established with the wireless communication device is to be released, identifying a target base station with which the connection to be released can be resumed for the wireless communication device, and transmitting, to the identified target base station, information required to resume the connection to be released by the source base station for the wireless communication device.