Multi-connectivity Framework for NR V2X Communications
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Solution Overview
Problem
Current wireless communication systems face challenges in providing robust and efficient vehicle-to-everything (V2X) services, particularly in scenarios requiring stringent mobility and communication robustness, where dual connectivity is limited to two simultaneous connections, and there is a need for seamless integration with network assistance across multiple communication links.
Innovation Solution
A multi-connectivity framework that supports New Radio (NR) V2X services by enabling three or more simultaneous communication links, allowing for robust control and mobility functionality on cellular links (LTE or NR), and facilitating direct communication via NR sidelink, with initial access, radio resource management, and radio link monitoring operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If dual connectivity is used with two simultaneous connections (LTE control plane + NR data plane), then simplified early NR deployments are achieved, but communication robustness and productivity are limited in scenarios requiring more connections
Solution Approach 1:
The patent segments the communication system into multiple independent connectivity layers: LTE control plane connections, NR data plane connections, and NR sidelink direct connections. Each layer operates semi-independently, allowing the system to establish three or more simultaneous connections without requiring complete reconfiguration of the entire system. This segmentation enables incremental deployment where each connectivity layer can be activated based on service requirements.
Solution Approach 2:
The patent adds a new dimension to connectivity by introducing NR sidelink direct communication as a third independent connection path alongside traditional LTE control plane and NR data plane connections. This creates a multi-dimensional connectivity architecture where connections can be established in different dimensions (control plane, data plane, direct peer-to-peer), thereby increasing the total number of simultaneous connections beyond the traditional dual-connectivity limit.
2Reliability
If control plane signaling is provided over LTE, then more robust signaling is achieved compared to NR mmWave, but overhead increases and future standalone NR operation flexibility is reduced
Solution Approach 1:
The patent dynamically changes the operational parameters of control plane signaling by allowing selection between LTE and NR frequency ranges based on service requirements and radio conditions. For V2X services requiring high robustness, the system configures control plane signaling over LTE with appropriate parameter settings. For other services, it can switch to NR with optimized parameters, thereby adapting the signaling overhead and robustness characteristics to match specific service needs.
3Productivity
If three or more simultaneous communication links are established for V2X services, then communication robustness and productivity improve, but device complexity and difficulty of managing multiple connections increase
Solution Approach 1:
The patent implements a universal multi-connectivity management framework that handles multiple types of connections (LTE control plane, NR data plane, NR sidelink) through a single integrated management architecture. This universal framework provides common functions for connection establishment, maintenance, and release across all connection types, thereby reducing the overall complexity that would otherwise arise from managing each connection type separately. The framework enables V2X services to utilize three or more simultaneous connections while maintaining manageable device complexity through standardized management procedures.
Data Source
AI summary
The described technology is generally directed towards a multi-connectivity (three or more simultaneous communication links) framework in a wireless communication network, including aspects and components that support the operation of New Radio vehicle-to-everything (V2X) services. Aspects of the framework include initial access and V2X establishment, local manager selection, sidelink and cellular resource configuration, mobility and measurements (and reporting), group communication and vehicular platooning support, and V2X configuration and local manager association.