User Equipment Data Replication Control via Dual MAC CE

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

In dual connectivity (DC) scenarios, user equipment faces challenges in managing data replication control due to conflicting MAC control elements (CEs) from multiple network devices, leading to uncertainty about whether data replication is activated or deactivated, which can affect data transmission stability and efficiency.

Innovation Solution

A method and device for controlling data replication in user equipment, where the equipment receives and processes MAC CEs from multiple network devices to determine whether to activate or deactivate data replication based on predefined rules, ensuring consistent data transmission paths and optimizing data replication control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If user equipment receives MAC CEs from multiple network devices in dual connectivity scenarios, then data transmission coverage and connectivity are improved, but uncertainty about data replication activation state occurs leading to reduced transmission stability

Engineering Contradiction:
ImproveconnectivityVSAvoidtransmission stability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent inverts the traditional approach by having the user equipment actively determine the activation state based on receiving MAC CEs from multiple network devices, rather than passively following a single network device's command. The UE processes MAC CEs from both master and secondary network devices to autonomously determine whether data replication is activated, resolving the uncertainty caused by multiple conflicting control signals.

Inventive Principle:
Principle #13The other way round (Inversion)

2Reliability

If data replication is activated to improve transmission reliability, then data transmission stability is improved, but data transmission efficiency decreases due to duplicated data processing

Engineering Contradiction:
Improvedata transmission stabilityVSAvoiddata transmission efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent implements dynamic control of data replication by enabling the user equipment to flexibly determine the activation state based on real-time reception of MAC CEs from multiple network devices. This dynamic mechanism allows the system to adaptively switch between replication and non-replication modes, optimizing the balance between transmission reliability and efficiency according to actual network conditions rather than maintaining a fixed state.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS11140735B2Data replication controlling method and related device
Publication Date: 2021.10.05 GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP LTD
  • US11140735B2 patent drawing
  • US11140735B2 patent drawing
  • US11140735B2 patent drawing

AI summary

Embodiments of the present application provide a data replication controlling method and a related device, the method includes: receiving, by a user equipment, a first MAC CE sent by a first network device, and receiving a second MAC CE sent by a second network device; and activating or deactivating, by the user equipment, data replication based on the first MAC CE and the second MAC CE. The embodiments of the present application may be adopted to enable the user equipment to clarify whether the data replication is activated or deactivated.