Wireless Core Network Link Inactivity Management
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Solution Overview
Problem
The frequent transition between idle and active states in wireless communication systems leads to inefficient use of network resources due to the repeated release and reestablishment of communication links, particularly the core network link, which increases processing requirements and reduces application efficiency.
Innovation Solution
Introducing a second inactivity period for the core network link that is longer than the radio link inactivity period, allowing the core network link to remain established for a longer duration, and dynamically adjusting this period based on the frequency of link release and reestablishment to optimize resource management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the inactivity period for releasing communication links is set short to preserve battery life, then battery life is improved, but the communication links are released and reestablished repeatedly increasing processing requirements
Solution Approach 1:
The patent segments the communication link into two independent parts: the radio link between UE and base station, and the core network link between base station and core network entity. Each part has its own inactivity period and release criteria. The radio link can be released after a short inactivity period to save battery, while the core network link maintains a longer inactivity period to avoid repeated reestablishment and reduce processing requirements.
Solution Approach 2:
The patent implements dynamic inactivity periods that can be adjusted based on system state and traffic patterns. The network can configure different inactivity periods for different UEs or different time periods, allowing optimization between battery life and processing requirements based on current network conditions and user behavior patterns.
2Use of energy by moving object
If the inactivity period is set short to preserve battery life, then battery life is improved, but application efficiency is reduced due to repeated connection setup time
Solution Approach 1:
By segmenting the communication link into radio link and core network link with different inactivity periods, the patent allows the radio link to be released quickly for battery saving while the core network link persists to maintain application efficiency. This segmentation resolves the contradiction by allowing different optimization goals for different parts of the system.
Solution Approach 2:
The core network link is established in advance and maintained for a longer period, so when the UE needs to resume communication, the core network connection is already prepared. This preliminary action reduces the connection setup time and improves application efficiency without requiring the UE to maintain continuous radio connection.
3Loss of energy
If the core network link is released frequently to match radio link release, then network resources are freed, but processing burden increases due to repeated reestablishment
Solution Approach 1:
The patent applies segmentation by creating independent release mechanisms for radio links and core network links. The core network link has its own longer inactivity period that is not tightly coupled to radio link release events, reducing the frequency of reestablishment and associated processing burden while still allowing network resources to be freed eventually.
Data Source
AI summary
Disclosed are a method, apparatus, and system for managing connections in a wireless communication network. When a user equipment device (UE) transitions between an idle state and an active state, a radio link is established between a base station and the UE and a core network link is established between the base station and a core network entity. In response to detecting that no data packets are exchanged between the UE and the base station, a timer is initiated. Further, in response to detecting that data packets are being exchanged between the UE and the base station, the timer is reset. The radio link is released in response to the timer reaching a first predetermined value associated with a first inactivity period and the core network link is released in response to the timer reaching a second predetermined value associated with a second inactivity period.