Adaptive Paging Method for Remote Terminal Devices
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Solution Overview
Problem
In a mixed scenario of cellular communication and device-to-device (D2D) communication, network devices face challenges in correctly paging terminal devices due to factors like coverage and trust relationships with relay devices, leading to potential paging failures.
Innovation Solution
A method where network devices determine the paging manner for terminal devices based on state information, such as subscription, connection, and coverage status, using either air interface messages or relay terminal devices to ensure accurate paging, thereby avoiding failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network device performs paging through an air interface message, then the paging can be sent directly to the terminal device, but paging fails when the terminal device is out of network coverage
Solution Approach 1:
The patent applies dynamics by making the paging method adaptive and changeable based on terminal device state. The network device dynamically selects between air interface paging and relay terminal paging according to whether the terminal is in coverage and its connection state, rather than using a fixed paging method. This dynamic adaptation resolves the contradiction between direct paging efficiency and coverage adaptability.
Solution Approach 2:
The patent changes the parameter of paging method selection based on terminal device state parameters (coverage status, connection state, D2D communication state). By monitoring these parameters and adjusting the paging approach accordingly, the system achieves both reliable paging within coverage and extended paging capability outside coverage areas.
2Reliability
If the network device pages through a relay terminal device, then paging can reach out-of-coverage terminals, but fails when the terminal has no trust relationship with the relay terminal
Solution Approach 1:
The patent applies preliminary action by having the terminal device proactively report its state information (coverage status, connection state, D2D communication state) to the network device before paging occurs. This advance information allows the network device to pre-determine the appropriate paging method, avoiding the need for complex trust relationship verification at the moment of paging and ensuring reliable delivery.
Solution Approach 2:
The patent implements feedback through the terminal device's state information reporting mechanism. The terminal continuously provides feedback about its coverage status, connection state, and D2D communication state, enabling the network device to adjust its paging strategy in real-time. This feedback loop simplifies the trust relationship management by using pre-established state information rather than complex verification during paging.
3Ease of operation
If the network device performs blind paging, then paging can be attempted without knowing terminal state, but causes paging failures due to unknown coverage and trust status
Solution Approach 1:
The patent eliminates blind paging by implementing preliminary action where the terminal device reports its state information (coverage status, connection state, D2D communication state) to the network device in advance. This pre-knowledge allows the network device to select the appropriate paging method before attempting paging, maintaining operational simplicity while dramatically improving paging success rate by avoiding mismatched paging approaches.
Data Source
AI summary
Provided are a paging method and a paging apparatus. The method comprises: a network device receiving state information about a remote terminal device; the network device determining, according to the state information, a paging mode for paging the remote terminal device; and the network device paging the remote terminal device according to the paging mode. It can thus be ensured that a network device correctly pages a remote terminal device.