Terminal Device 5G Sign Display Control in LTE-NR Dual Connectivity
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Solution Overview
Problem
In LTE-NR dual connectivity scenarios, terminal devices inaccurately display 5G signs due to the inability to differentiate between supported and unsupported NR networks, leading to user dissatisfaction.
Innovation Solution
A communication method where a terminal device receives control information from an LTE network device indicating NR network capabilities, allowing it to accurately display the corresponding radio access technology sign only when it supports the NR frequency or cell, and after performing signal measurements that meet certain quality thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If indication information is added to LTE SIB to indicate LTE-NR DC support, then terminal devices can display NR signs, but terminal devices that do not support LTE-NR DC may incorrectly display the NR sign
Solution Approach 1:
The patent implements a feedback mechanism where the terminal device reports its NR capability information to the network side, and the network side uses this feedback information to accurately control whether to indicate NR sign display. This ensures that only terminal devices that actually support NR technology will display the NR sign, preventing incorrect sign display while maintaining network resource optimization.
2Ease of operation
If the terminal device displays NR sign based on broadcast SIB information, then the network can indicate NR support, but the terminal cannot accurately determine whether it should display the sign
Solution Approach 1:
The patent applies preliminary action by having the terminal device report its NR capability information to the network side in advance. The network side stores this capability information and uses it to pre-determine whether the terminal should display the NR sign. This preliminary capability assessment ensures accurate sign display control before the terminal actually needs to display the sign.
3Productivity
If LTE eNB broadcasts NR support information, then more terminal devices can access NR network, but terminal devices without NR support may be misled into displaying NR signs
Solution Approach 1:
The patent applies local quality by customizing the sign display behavior for each terminal device based on its individual NR capability. Instead of a uniform broadcast approach, the system assesses each terminal's capability and applies appropriate sign display control locally. This ensures that only terminal devices with NR support display the NR sign, maintaining reliability while still enabling network resource utilization.
Data Source
AI summary
This application provides a communication method and a communications apparatus. The method includes: receiving, by a terminal device, control information sent by a first network device, where the control information is used to indicate information about a second network device, the second network device and the first network device use different radio access technologies, the terminal device camps on a cell of the first network device, and a cell of the second network device does not support camping of the terminal device or does not support initial access of the terminal device; and displaying, by the terminal device, a first sign based on the control information, where the first sign is a sign corresponding to a radio access technology used by the second network device.