Local Global Message Distribution Policy Intelligent Transport System
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Solution Overview
Problem
Current LTE architecture is not suitable for Intelligent Transport Systems (ITS) applications due to high latency and lack of reliability, as it is designed for multicast/broadcast services rather than time-critical and delay-sensitive scenarios.
Innovation Solution
A communication entity associated with a base station, equipped with an analyzer, local message distributor, and global message distributor, which analyzes message content and type to implement local and global distribution policies, ensuring low latency and efficient message distribution within the network, including prioritization and resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traffic is sent through the core network (BM-SC and MBMS-GW) for multicast/broadcast services, then the architecture supports standard LTE services, but the latency is high and reliability is insufficient for ITS applications
Solution Approach 1:
The patent segments the message distribution function into local and global components. The local message distributor handles time-critical ITS messages within the base station's service area, while the global message distributor handles non-time-critical messages through the core network. This segmentation allows latency-sensitive applications to bypass the core network path entirely.
Solution Approach 2:
The communication entity at the base station acts as an intermediary that receives messages from user equipment and intelligently routes them through appropriate distribution paths. It analyzes message content and type to determine whether to use local distribution (for low latency) or global distribution (for standard services), thereby mediating between the conflicting requirements of speed and network-wide coverage.
2Loss of time
If a single global message distribution policy is used for all messages, then the network architecture is simple, but it cannot provide low latency for time-critical ITS applications
Solution Approach 1:
The communication entity is segmented into functional modules: an analyzer for message classification, a local message distributor for time-critical messages, and a global message distributor for standard messages. This modular segmentation enables differentiated handling of messages while maintaining manageable system complexity through clear functional separation.
Solution Approach 2:
The patent applies local quality by implementing a local message distribution policy that is optimized for time-critical ITS applications within the base station's local service area. This local policy provides low-latency distribution for urgent messages, while a global policy handles non-time-critical messages, allowing each part of the system to have properties optimized for its specific function.
3Productivity
If all messages are distributed globally through the core network, then network-wide coverage is achieved, but radio resources are not optimized for local time-critical communications
Solution Approach 1:
The patent implements local quality by creating a local message distribution mechanism that prioritizes time-critical ITS messages within the base station's service area. This local distribution path provides both high efficiency (through direct local routing) and high reliability (through dedicated resource allocation), while the global distribution path handles standard messages, thereby optimizing radio resource utilization for different message types.
Solution Approach 2:
The communication entity dynamically selects the appropriate distribution policy (local or global) based on message analysis. For time-critical ITS messages, it dynamically switches to local distribution with prioritized resource allocation, while for standard messages, it uses global distribution. This dynamic adaptation enables the system to optimize productivity and reliability according to the specific requirements of each message.
Data Source
Figure 1
Figure 2
Figure 3a~3c
AI summary
The invention relates to a communication entity (100a) associated with a base station (101a). The communication entity (100a) comprises an analyzer (103) configured to analyze the content and/or type of a message received by the base station (101a), a local message distributor (105) configured to adopt a local message distribution policy for distributing the message to at least one user equipment of a plurality of user equipments (110a-d) on the basis of the content and/or type of the message, and a global message distributor (107) configured to adopt a global message distribution policy for distributing the message to at least one of a plurality of further communication entities (100b-d) on the basis of the content and/or type of the message, wherein each further communication entity (100b-d) is associated with a respective further base station (101b-d).