NTN Terminal Access Switching for Capability-Based Cell Barring
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Solution Overview
Problem
In non-terrestrial network (NTN) communication scenarios, terminal devices often experience unsmooth communication processes due to limited information, leading to potential inability to communicate effectively.
Innovation Solution
A method for wireless communication involving the transmission of first information, including cell barred information and indication to switch between user plane and control plane optimization modes, tailored for terminal devices with varying NTN capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If terminal devices use a unified access method in NTN scenarios, then device complexity is reduced, but communication reliability deteriorates due to varying NTN capabilities
Solution Approach 1:
The patent segments terminal devices into different types (first type with first NTN capability, second type with second NTN capability) and applies different access methods and parameter configurations to each type. This segmentation allows the system to handle diverse NTN capabilities without requiring complex unified access methods, thereby improving communication reliability while maintaining manageable device complexity.
Solution Approach 2:
The patent dynamically adjusts access parameters and communication strategies based on the specific NTN capability of each terminal device type. The network device can flexibly configure different access methods, resource allocations, and parameter sets depending on whether the terminal is of the first type or second type, enabling adaptive optimization rather than static unified handling.
2Ease of operation
If terminal devices access NTN scenarios with limited information, then ease of operation is improved, but communication reliability deteriorates
Solution Approach 1:
The patent implements preliminary action by having the network device pre-configure and provide specific access parameters and information related to NTN scenarios before terminal devices attempt access. The network device proactively supplies necessary configuration data based on the terminal's type and capability, so terminals don't need to gather extensive information themselves, maintaining ease of operation while ensuring reliable access.
Solution Approach 2:
The network device acts as an intermediary that bridges the gap between terminals with limited information and the complex NTN scenario. It translates and provides only the necessary access parameters and configuration data that terminals need, filtering out unnecessary complexity while ensuring all critical information for reliable communication is delivered.
3Reliability
If different access methods are used for different terminal types, then communication reliability is improved, but device complexity increases
Solution Approach 1:
The patent manages complexity by changing parameters rather than fundamentally altering access methods. Different terminal types receive different parameter configurations (such as access parameters, resource allocation parameters) within the same basic access framework. This allows reliable differentiation between terminal types without requiring entirely separate complex access procedures for each type.
Data Source
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AI summary
Provided are a wireless communication method, a terminal device, and a network device. The method includes: a first terminal device receives first information sent by a network device, wherein the first information includes one or more of the following: first cell barring information used for indicating whether a first cell allows a first-type terminal device to access; second cell barring information used for indicating whether the first cell allows a second-type terminal device to access; satellite identification information of the first cell; and first instruction information used for instructing the first terminal device to switch from a user plane optimization mode to a control plane optimization mode; wherein the first-type terminal device and the second-type terminal device are both terminal devices having NTN capabilities, and the NTN capabilities of the first-type terminal device and the second-type terminal device are not completely the same, facilitating the improvement of the possibility of successful communication of terminal devices.