Relay Node Local Routing for MCData Group Communication
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Solution Overview
Problem
Current Mission Critical (MC) Data communication systems face inefficiencies in managing group communications due to one-to-one connection overhead, which limits the number of Remote MCData UEs a Relay node can serve, especially in off-network deployments, and inefficient radio resource utilization.
Innovation Solution
A method and system for managing MCData communication using a MCData server and Relay node that supports one-to-one and group File Distribution (FD) and Data Streaming (DS) through HTTP and media plane, optimizing radio resource utilization by routing IP packets for SIP signaling and media transmission, and reducing unicast transmissions by local routing at the Relay node.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If one-to-one connection is used for group communication through Relay node, then Remote MCData UEs can register and access MC service, but the number of Remote MCData UEs that a Relay node can serve is drastically reduced
Solution Approach 1:
The patent merges multiple one-to-one connections into a single group communication connection. Instead of establishing separate connections between each Remote MCData UE and the MC service, the invention enables group communication where multiple UEs can communicate through a single Relay node connection, thereby increasing the number of UEs that can be served simultaneously.
Solution Approach 2:
The patent makes the Relay node connection universal by enabling it to serve multiple functions. A single connection through the Relay node can handle communications for multiple Remote MCData UEs simultaneously, rather than being dedicated to a single UE. This multi-functionality increases the service capacity of each Relay node.
2Reliability
If one-to-one connection is used for group call, then individual UE communication is ensured, but resource overhead increases and efficiency decreases
Solution Approach 1:
The patent combines multiple individual communication streams into a single group communication stream. By merging the communication paths, the system reduces the total number of connections required, thereby reducing radio resource overhead and energy consumption while maintaining individual UE communication capabilities within the group.
3Ease of operation
If centralized MCData server is used, then MCData services can be facilitated and governed, but off-network deployments require alternative communication paths
Solution Approach 1:
The patent segments the communication architecture into on-network and off-network components. The centralized MCData server handles service management for on-network deployments, while the off-network capability allows direct UE-to-UE communication for deployments without server access. This segmentation enables the system to adapt to different deployment scenarios.
Solution Approach 2:
The patent makes the communication path dynamic by allowing the system to switch between server-mediated communication (when available) and direct peer-to-peer communication (when operating off-network). This dynamic adaptability enables the system to maintain MCData services across varying network conditions and deployment environments.
Data Source
AI summary
Embodiments herein achieve systems and methods for managing communication in a Mission Critical data (MCData) communication system. The proposed method and system provides file distribution and data streaming in the MCData communication system. The proposed method and system provides a functional model and mechanisms to support mission critical data services. The functional model to support file distribution and data streaming, and associated procedures including one-to-one, one-to-many, and group data communications. Further, the proposed method and system provides mechanisms for optimizing radio resource utilization and backhaul link utilization in the MCData communication system. The proposed method and system provides radio resource utilization of the PC5 interface for the MC service, when multiple group members are under a relay node. Further, the proposed method and system can be used to reduce number of unicast transmissions between the MCData server and the MCData UEs by local routing at the relay node.