Wireless Slice Policy Mapping for Packet Priority Preservation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current scheduling approaches in wireless networks fail to maintain packet type priority across core network elements, leading to performance degradation for certain traffic types.
Innovation Solution
Implement a system where access nodes tag requests with priority, such as QCI, and a centralized policy mapper in the core network assigns policies based on these tags to ensure proper slice allocation, maintaining packet type priority.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If bandwidth demand-based resource allocation is used in the core network, then resource utilization is improved, but packet type priority is lost leading to performance degradation for specific traffic types
Solution Approach 1:
The patent introduces a policy control function as an intermediary between the access node and core network resources. This intermediary receives tagged requests with priority information from the access node, maps the traffic types to appropriate QoS parameters, and ensures that priority information is preserved throughout core network resource allocation, thus maintaining quality of service while enabling efficient resource utilization
Solution Approach 2:
The patent segments the resource allocation process into distinct stages: access node tagging of priority information, policy control function processing, and core network resource allocation. This segmentation allows priority information to be preserved and transmitted through the core network elements, ensuring that different traffic types receive appropriate QoS treatment while maintaining overall system efficiency
2Reliability
If centralized policy mapping is implemented to maintain packet priority, then quality of service is improved, but network complexity increases
Solution Approach 1:
The policy control function serves multiple functions within the core network: it receives tagged requests, performs policy mapping, determines QoS parameters, and manages resource allocation decisions. By consolidating these functions into a single multi-functional element, the patent maintains quality of service without proportionally increasing overall network complexity
Solution Approach 2:
The access node performs self-service by automatically tagging requests with priority information based on traffic type identification. This automated tagging at the source eliminates the need for manual priority assignment and reduces the processing burden on core network elements, thereby improving quality of service while minimizing the complexity increase from centralized policy mapping
Data Source
AI summary
Systems and methods are provided for traffic aware slice management in a wireless network. A method includes receiving a request from a wireless device at an access node and tagging the request at the access node with a priority. The method additionally includes transmitting the tagged request to a policy mapper of a core network and receiving a policy from a core network policy mapper based on the tagged request. The method further includes scheduling the request based on the received policy.