Cellular Voice Traffic Prioritization Over Shared Data Networks
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Voice services over data networks face delays and packet loss due to competition for bandwidth with other devices, leading to potential bottlenecks and increased chances of packet collisions, especially when routing cellular traffic through uncontrolled networks like the Internet, and it may not be cost-effective to dedicate an entire access line for cellular service.
Innovation Solution
A system and method that prioritize cellular voice traffic by tagging it with a prioritization marking at the network interface device, allowing it to be transmitted directly through a virtual circuit within the access carrier network, ensuring faster routing and maintaining quality of service from the network interface device to the cellular service provider network, without requiring a dedicated access line.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If cellular voice traffic is transmitted over a shared data network, then bandwidth utilization is improved, but voice service quality deteriorates due to delays and packet loss
Solution Approach 1:
The patent segments network traffic into different priority levels by tagging voice traffic with prioritization markings (such as DSCP or 802.1p tags). This segmentation allows voice traffic to be separated from best-effort data traffic, ensuring that voice packets receive preferential treatment during routing and transmission, thereby maintaining service quality while sharing the network infrastructure.
Solution Approach 2:
The patent changes the parameter of traffic identification by introducing prioritization markings as a new attribute. Network devices use these markings to recognize and prioritize voice traffic, transforming the treatment of traffic from uniform (best-effort) to differentiated (quality-of-service enabled), thus resolving the conflict between shared bandwidth and reliable voice transmission.
2Speed
If cellular voice traffic is prioritized through tagging and direct routing, then transmission speed is improved, but network device complexity increases
Solution Approach 1:
The patent applies preliminary action by tagging voice traffic with prioritization markings at the source (network interface device) before the traffic enters the core network. This upfront classification eliminates the need for continuous complex analysis at each network node, as devices can simply read and forward the pre-assigned priority tags, thereby maintaining high transmission speed without proportionally increasing device complexity.
3Reliability
If a dedicated access line is allocated for cellular service, then service reliability is improved, but cost increases
Solution Approach 1:
The patent makes the access line universal by allowing it to carry both voice traffic and best-effort data traffic simultaneously. Through prioritization tagging and differentiated routing, a single access line performs multiple functions: providing guaranteed quality for voice services while also enabling cost-effective data services, thereby eliminating the need for separate dedicated lines and reducing overall cost.
Data Source
AI summary
Embodiments of the disclosed invention include a system and method for providing end to end quality of service for cellular voice traffic over a data network. For example, in one embodiment, the method includes tagging outgoing cellular traffic at a network interface device with a prioritization marking to produce prioritized data and transmitting the prioritized data directly to an access carrier network associated with providing an access line to the cellular network interface device. The method maintains, at the access carrier network, the prioritization marking of the outgoing cellular traffic for routing the outgoing cellular traffic through the access carrier network. The method hands off the prioritized data directly to a cellular service provider network associated with the cellular device via a directly connected network to network interface.