Dynamic Network Access Policy Control for Wireless Congestion
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Solution Overview
Problem
Current wireless communication systems lack effective methods to dynamically manage network traffic distribution across different types of networks, leading to potential congestion and inefficient resource utilization, especially in areas with varying traffic conditions.
Innovation Solution
An apparatus and method that utilize a server to receive and update network access policies based on congested area information, preventing terminal traffic inflow to congested areas by sharing congestion awareness from a radio access network, thereby optimizing network resource use and providing stable communication services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the ANDSF access policy is used to control terminal mobility between different types of networks, then network access control is provided, but the policy cannot reflect dynamic network conditions such as traffic congestion and simply distributes traffic according to static network shape-based policies
Solution Approach 1:
The patent implements a feedback mechanism where the server receives congestion status information from the network, updates the access policy based on this feedback, and transmits the updated policy to terminals. This closed-loop feedback system enables the ANDSF access policy to dynamically reflect current network conditions, resolving the contradiction between policy adaptability and information loss.
Solution Approach 2:
The server proactively updates the access policy before terminals attempt to access congested areas by receiving congestion information, pre-updating the policy, and transmitting it to terminals in advance. This preliminary action prevents terminals from making access decisions based on outdated information, addressing the adaptability-information loss contradiction.
2Productivity
If terminals access different types of networks based on static policies, then network diversity is supported, but traffic congestion in specific areas cannot be avoided leading to inefficient resource utilization
Solution Approach 1:
The patent transforms the static access policy into a dynamic one by enabling real-time updates based on network congestion status. The server continuously monitors congestion conditions, updates policies accordingly, and transmits them to terminals, allowing the system to adapt to changing network conditions and avoid congested areas dynamically, thus improving both resource utilization efficiency and service stability.
Solution Approach 2:
The feedback loop where the server receives congestion information, updates policies, and transmits them to terminals enables the system to respond to actual network conditions. This feedback mechanism ensures that terminals are guided away from congested areas and toward less loaded networks, improving resource utilization while maintaining service reliability.
3Productivity
If the server updates access policy based on congested area information, then traffic distribution is optimized, but additional communication overhead for policy updates is introduced
Solution Approach 1:
The server performs periodic updates of the access policy based on congestion status changes rather than continuous updates. This periodic action optimizes traffic distribution efficiency by updating policies at appropriate intervals, balancing the need for current information with the overhead of frequent updates, thus addressing the productivity-time loss contradiction.
Data Source
AI summary
The disclosure relates to a 5th generation (5G) or pre-5G communication system for supporting a data transmission rate higher than that of a 4th generation (4G) communication system such as long term evolution (LTE). The purpose of the disclosure is to control traffic generally in a wireless communication system, and an operating method of a server comprises the steps of: receiving, from a network entity, information on a congested area in a network to which the network entity belongs; updating a network access policy on the basis of the received congested area information; and transmitting the updated network access policy to a terminal, wherein the network entity determines the congested area on the basis of statistical information on the network to which the network entity belongs.