Terminal Network Access Planning for Reliable Cell Handovers
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Solution Overview
Problem
Current network access management methods for terminal devices in vertical industries are complex and unreliable, particularly due to unpredictable movement paths and congestion, leading to potential rejection during access and increased complexity.
Innovation Solution
A network access management method and apparatus that utilizes network access planning information to determine and optimize handovers by predicting the movement path of terminal devices, ensuring reliable access by pre-configuring handover settings based on cell identifiers, priorities, and synchronization parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the terminal device performs network selection and access through contention-based random access, then the terminal device can access the network independently, but access reliability deteriorates due to potential rejection during congestion
Solution Approach 1:
The access network device pre-determines the target access network device based on the terminal device's current location and network access planning information before the terminal device attempts access. This preliminary action allows the network to prepare handover configurations in advance, reducing contention and improving access reliability during congestion.
Solution Approach 2:
The access network device acts as an intermediary that mediates between the terminal device and the target access network device. It determines the target device, obtains handover configuration information, and forwards it to the terminal device, thereby coordinating the access process and reducing direct contention.
2Reliability
If the terminal device and access network perform signal measurement, parsing, and network selection operations, then network access can be achieved, but access management complexity increases
Solution Approach 1:
The access network device autonomously determines the target access network device and obtains handover configuration information without requiring complex terminal device participation. The terminal device simply receives the pre-configured handover information, significantly reducing its operational complexity while maintaining reliable access.
Solution Approach 2:
The access network device performs signal measurement, parsing, and target determination operations in advance before the terminal device needs to access the network. This preliminary action transfers complexity from the terminal device to the network side, simplifying terminal operations while ensuring reliable access management.
3Adaptability or versatility
If the terminal device moves along a definite path with controlled speed, then movement behavior becomes predictable, but the network access management method remains complex without optimization
Solution Approach 1:
The access network device determines the target access network device in advance based on the terminal device's current location and network access planning information about the definite movement path. This preliminary determination leverages the predictability of movement to simplify access management, reducing complexity while maintaining adaptability to the terminal's movement.
Data Source
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AI summary
This application provides a network access management method and apparatus for a terminal device. The method includes: When a terminal device moves, a first access network device may select, for the terminal device based on a current location of the terminal device and network access planning information, a second access network device to which the terminal device is to be handed over, and then, trigger the terminal device to select a cell (referred to as a first cell) from cells that belong to the second access network device and that are in the network access planning information to access. In the foregoing process, the first access network device determines, based on the network access planning information, an access network device to which the terminal device needs to be handed over. This narrows a cell search and detection range, and facilitates fast and successful access of the terminal device. This solution simplifies and optimizes a network access management method for a terminal device in a vertical industry, to improve network access reliability and reduce access management complexity for a terminal device and a network.