Geographical Code Encoding for Low Latency V2X Communication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication networks face challenges in reducing latency and signaling overhead, particularly in supporting V2X services that require low latency and high reliability, such as cooperative perception and maneuvering services, which are not adequately met by existing MBMS and SC-PTM technologies.
Innovation Solution
A network entity that selects and encodes messages using geographical codes associated with the current position of mobile communication devices, allowing for localized communication by scrambling messages with Geo-RNTI values, thereby reducing latency and signaling overhead, and enabling preconfiguration of Geo-RNTI values for different services and regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If MBMS or SC-PTM technologies are used for V2X services, then communication coverage can be provided, but latency requirements cannot be met due to core network involvement and backhaul delays
Solution Approach 1:
The patent extracts the essential communication function from the complex MBMS/SC-PTM architecture by implementing a simplified direct communication mechanism between vehicles. The Geo-RNTI based localized communication eliminates the need for core network involvement and backhaul transmission, keeping only the necessary communication coverage function while removing the latency-causing elements.
Solution Approach 2:
The patent segments the communication service into localized geographic regions using Geo-RNTI codes. Each geographic region has its own dedicated communication channel, allowing parallel independent communications without centralized coordination. This segmentation enables multiple vehicles in different regions to communicate simultaneously with minimal latency while maintaining overall system reliability.
2Ease of operation
If centralized MBMS architecture is used, then service management is simplified, but signaling overhead increases due to core network involvement
Solution Approach 1:
The patent implements self-service by enabling vehicles to autonomously select and use appropriate Geo-RNTI codes based on their geographic location and service requirements. Each vehicle independently manages its own communication parameters without requiring centralized authorization or coordination, thereby eliminating extensive signaling overhead while maintaining service management through pre-configured geographic zones.
Solution Approach 2:
The patent applies preliminary action by pre-configuring Geo-RNTI codes for different geographic regions and service types before actual communication occurs. This pre-configuration eliminates the need for real-time signaling and negotiation during communication establishment, reducing signaling overhead while keeping service management simple through predetermined arrangements.
3Loss of time
If localized communication is implemented for low latency, then delay is reduced, but network complexity increases due to multiple geographical codes
Solution Approach 1:
The patent applies universality by designing the Geo-RNTI code system to serve multiple functions simultaneously: it identifies geographic regions, selects communication channels, and manages resource allocation all through a single code structure. This multi-functionality reduces network complexity despite implementing localized communication, as one unified system handles what would otherwise require multiple separate mechanisms.
Solution Approach 2:
The patent uses parameter changes by varying the Geo-RNTI code parameters (geographic coordinates, service type, time) to dynamically adapt communication settings. This allows the system to maintain low latency through localized communication while managing complexity through systematic parameter variation rather than structural complexity. The same basic mechanism handles different regions and services by changing parameters rather than adding components.
Data Source
AI summary
The present disclosure relates to a network entity for a communication network for providing a plurality of communication services to a plurality of mobile communication devices, the network entity comprising: a session manager configured to select a first geographical code from a plurality of geographical codes, wherein each geographical code is associated with a geographical region and wherein the first geographical code is associated with a first geographical region including or close to a current geographical position of at least one of the plurality of mobile communication devices; a encoder configured to encode on a MAC level and/or physical level at least a portion of a message intended for the at least one mobile communication device using the first geographical code; and a communication interface configured to send the message with the portion encoded with the first geographical code to the at least one mobile communication device.