RAN Paging Process Optimization for Active Data Sessions
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Solution Overview
Problem
In cellular wireless communication networks, continuous paging of devices engaged in data communication sessions leads to increased power depletion and noise in the network, as the Radio Access Network (RAN) is unaware of active data connections, resulting in excessive and ineffective page message transmission.
Innovation Solution
The RAN initiates a paging process and, upon determining that a device is engaged in active data communication, prematurely discontinues the paging process to avoid excessive power consumption and noise, using methods such as querying other network entities aware of the data connection status to determine when to stop pagings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the RAN continues to page the WCD using standard procedures, then the paging process can potentially reach the WCD, but excessive power is depleted and noise increases in the network
Solution Approach 1:
The network performs preliminary actions by checking data connection status before initiating the paging process. By querying the packet-switched domain to determine if the WCD has an active data connection, the network可以避免 unnecessary paging transmissions, thereby reducing power depletion while maintaining paging reliability for devices that need to be reached.
2Reliability
If the RAN transmits multiple page messages to ensure the WCD is reached, then the paging reliability improves, but network noise increases
Solution Approach 1:
The system implements feedback by continuously monitoring the WCD's data connection status through queries to the packet-switched domain. This feedback mechanism allows the network to adaptively control paging transmissions - stopping when the WCD is detected to be in active data communication - thereby reducing network noise while maintaining adequate paging reliability.
3Ease of operation
If the RAN pages the WCD without knowing its data connection status, then the paging process can proceed independently, but unnecessary page messages are transmitted
Solution Approach 1:
The patent introduces an intermediary mechanism by having the circuit-switched domain (handling paging) query the packet-switched domain (handling data connections) to determine WCD status. This intermediary information exchange enables the paging process to make informed decisions about whether to continue transmissions, reducing unnecessary power consumption while maintaining operational simplicity.
Data Source
AI summary
A radio access network (RAN) may be configured to manage paging of a wireless communication device (WCD). The RAN may initiate a paging process to page the WCD, and the paging process may comprise the RAN transmitting to the WCD a defined sequence of page attempts until the RAN receives a page response from the WCD or the RAN has transmitted a final page attempt of the sequence. After the RAN has transmitted at least one page attempt of the sequence but before the final page attempt of the sequence has been transmitted, the RAN may determine that the RAN has not received the page response from the WCD, and that the WCD is currently engaged in active data communication, and the RAN may responsively discontinue the paging process.