MME-eNB D2D Control for UE Proximity Awareness
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Solution Overview
Problem
Current mobile communication systems lack a solution for controlling User Equipment (UE) capable of proximity awareness for direct Device to Device (D2D) communication, which limits the ability of UEs to communicate directly and efficiently without network intervention.
Innovation Solution
A method and system where the Mobility Management Entity (MME) and evolved Node B (eNB) collaborate to receive, determine, and configure D2D features for UEs, allowing them to perform mutual discovery and direct communication by accepting or rejecting D2D requests based on subscription data, network policies, and current resource conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If D2D communication is introduced to allow direct communication between UEs, then communication efficiency and user experience are improved, but network control and management become more complex
Solution Approach 1:
The patent segments the D2D control process into distinct phases: discovery phase (UEs discover each other), configuration phase (network configures D2D resources), and communication phase (direct D2D communication occurs). This segmentation allows the network to maintain control over critical functions while enabling direct UE communication, resolving the contradiction between communication efficiency and network control complexity.
Solution Approach 2:
The network acts as an intermediary that facilitates D2D communication by managing resource allocation, authentication, and configuration. The eNB and MME serve as intermediary entities that coordinate between UEs seeking direct communication and the core network, enabling efficient D2D communication while maintaining network oversight and control.
2Speed
If UEs are allowed to transmit uplink data directly without network control, then communication speed is improved, but network security and resource management deteriorate
Solution Approach 1:
The patent implements preliminary actions by requiring the network to pre-configure D2D resources, perform authentication, and establish security parameters before UEs engage in direct communication. The eNB allocates dedicated resources and the MME verifies subscriber eligibility in advance, ensuring security and resource management are maintained while enabling fast direct communication.
Solution Approach 2:
The network maintains feedback mechanisms through the eNB and MME that monitor D2D communication sessions, resource usage, and UE behavior. This feedback loop allows the network to detect and respond to security issues or resource violations while UEs communicate directly, balancing communication speed with network security and resource management.
3Reliability
If centralized control by the network is maintained for all UE communications, then network security is improved, but communication overhead and latency increase
Solution Approach 1:
The patent segments control functions between the network and UEs: the network maintains centralized control over security, authentication, and resource allocation, while UEs autonomously handle discovery, connection establishment, and data transmission. This segmentation reduces communication overhead and latency for actual data transfer while preserving network security through centralized oversight of critical functions.
Data Source
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AI summary
Disclosed are a terminal control method and device, used for implementing control on a user equipment (UE) with a proximity perception capability when a D2D communication mechanism for mutual discovery even direct communication between mobile devices is introduced to a network. The method is: an MME receiving a D2D request message of a UE that is sent by a base station, determining requested D2D characteristics according to the D2D request message, determining an acceptable D2D characteristic in the requested D2D characteristics, and sending the accepted D2D characteristic to the base station; and after receiving the accepted D2D characteristic returned by the MME, the base station determining whether to accept the D2D request of the UE, and if yes, the base station performing resource configuration and instructing the UE to perform the accepted D2D characteristic; otherwise, the base station rejecting the D2D request of the UE. Also disclosed are another terminal control method and device, and further disclosed is a terminal control system.