Network Node UE Access Control via Identity and MIMO Layers
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Solution Overview
Problem
The existing 5G NR standard lacks a method to distinguish between 2Rx vehicle and handheld UE types, leading to network access issues, as there is no existing method to allow 2Rx vehicle UE access while preventing 2Rx handheld UE access, affecting network stability.
Innovation Solution
A method is proposed where a network node determines UE type based on identity information, such as IMEI, and capability information, using a gray list to conditionally allow or block network access, allowing 2Rx vehicle UE access while blocking 2Rx handheld UE access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If 2Rx vehicle UE network access is allowed, then vehicle communication capability is improved, but handheld terminal network access control becomes difficult
Solution Approach 1:
The patent applies local quality by differentiating network access policies based on UE type characteristics. Vehicle UEs with 2Rx capability are granted special access permissions through identity-based recognition, while handheld UEs with the same 2Rx capability are restricted. This localized differentiation in access control quality resolves the contradiction by allowing vehicle UEs to access the network while maintaining control over handheld UEs, despite both having identical receiver capabilities.
2Reliability
If network access control is implemented based on UE type, then network stability is improved, but device identification complexity increases
Solution Approach 1:
The patent uses copying by utilizing existing identity information (such as IMEI) that UEs already possess and transmit to the network. Instead of requiring new complex identification mechanisms, the system copies and leverages existing identity data to determine UE type and apply appropriate access control policies. This approach improves network stability through type-based control while avoiding the complexity of new identification systems.
3Reliability
If 2Rx handheld terminal access is blocked, then network stability is improved, but legitimate vehicle UE access may be incorrectly restricted
Solution Approach 1:
The patent applies preliminary action by performing UE type identification and access permission assignment during the network registration phase, before actual data transmission begins. The network node proactively determines whether the UE is a vehicle or handheld type based on identity information, and pre-configures appropriate access policies. This preliminary differentiation ensures that legitimate vehicle UEs are not incorrectly restricted while maintaining network stability, as the correct access permissions are established in advance.
Data Source
AI summary
There is provided a method for determining, by a network node, network access of a user equipment (UE). The method may include: receiving identity information of the UE from a base station to which the UE is connected; receiving capability information of the UE from the base station, the capability information of the UE including multiple-input and multiple-output (MIMO) layer information of the UE; and determining whether to allow network access of the UE on the basis of the identity information and the MIMO layer information.