Light Connection State for UE Access Delay Reduction

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Solution Overview

Problem

In modern mobile communication networks, the signaling overhead for establishing and releasing connections is significant for UEs with static or low mobility, and there is a need to reduce access time delay and improve data transmission efficiency to support real-time applications like virtual reality, especially when UEs transition between radio access network nodes.

Innovation Solution

A data transmission method where a first node determines access information of a user equipment (UE) and transmits buffered data to a second radio access network node based on pre-defined conditions, such as connection status and data forwarding requirements, optimizing data forwarding addresses and reducing signaling overhead.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If connection establishment and release procedures are performed for each data transmission, then network access functionality is ensured, but signaling overhead increases and access time delay increases

Engineering Contradiction:
Improvenetwork access functionalityVSAvoidaccess time delay
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent applies preliminary action by establishing a light connection in advance that maintains minimal network connectivity without full connection establishment. The UE retains a simplified connection state with the network, allowing rapid data transmission without performing complete connection setup procedures each time data needs to be sent, thus reducing access time delay while maintaining network access functionality

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent segments the connection establishment process into two parts: a lightweight initial connection setup that maintains basic network access, and optional full connection establishment only when actually needed. This segmentation allows the system to maintain minimal connectivity with reduced signaling overhead while preserving the ability to establish full connections when required for reliability

Inventive Principle:
Principle #1Segmentation

2Reliability

If connection establishment and release procedures are performed for each data transmission, then network access functionality is ensured, but signaling overhead increases

Engineering Contradiction:
Improvenetwork access functionalityVSAvoidsignaling overhead
Core Design Contradiction:
ReliabilityVSLoss of substance

Solution Approach 1:

The patent applies preliminary action by establishing a light connection in advance that maintains minimal network connectivity without full connection establishment. The UE retains a simplified connection state with the network, allowing rapid data transmission without performing complete connection setup procedures each time data needs to be sent, thus reducing access time delay while maintaining network access functionality

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent segments the connection establishment process into two parts: a lightweight initial connection setup that maintains basic network access, and optional full connection establishment only when actually needed. This segmentation allows the system to maintain minimal connectivity with reduced signaling overhead while preserving the ability to establish full connections when required for reliability

Inventive Principle:
Principle #1Segmentation

3Stability of the object's composition

If buffered data is forwarded during UE handover, then service continuity is improved, but data transmission complexity increases

Engineering Contradiction:
Improveservice continuityVSAvoiddata transmission complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent uses the source base station as an intermediary to buffer and forward data during UE handover. The source base station retains buffered data and forwards it to the target base station, ensuring service continuity without requiring complex coordination between multiple network entities. This intermediary approach simplifies the overall system complexity while maintaining stable service delivery during transitions

Inventive Principle:
Principle #24Intermediary (Mediator)

4Loss of time

If access time delay is reduced for real-time applications, then application performance is improved, but connection management complexity increases

Engineering Contradiction:
Improveaccess time delayVSAvoidconnection management complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by establishing a light connection in advance that maintains minimal network connectivity without full connection establishment. The UE retains a simplified connection state with the network, allowing rapid data transmission without performing complete connection setup procedures each time data needs to be sent, thus reducing access time delay while maintaining network access functionality

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS11140601B2Reducing delay of a UE access to a network
Publication Date: 2021.10.05 SAMSUNG ELECTRONICS CO LTD
  • US11140601B2 patent drawing
  • US11140601B2 patent drawing
  • US11140601B2 patent drawing

AI summary

A data transmission supporting method and apparatus, which includes obtaining, by a first node, access information of a UE; transmitting, by the first node, data information associated with the UE or data of the UE buffered in the first node to a second radio access network node accessed by the UE according to the access information. According to the present disclosure, service continuity requirements in the further mobile communication network can be effectively adapted.