Multi-System Access Parameters for Fast NR-CIoT Switching
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Solution Overview
Problem
Existing communication systems face challenges in efficiently managing simultaneous operation of multiple types, particularly NR and CIoT systems, leading to increased delays and power consumption due to blind frequency scanning.
Innovation Solution
A communication method and device that enables a terminal device to receive access parameters for multiple systems, allowing simultaneous access or fast switching between them, using parameters such as frequency band, cell identity, and random access channel configurations to optimize communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a terminal device performs blind frequency scanning to access multiple communication systems, then it can discover and connect to available systems, but power consumption increases and access delays occur
Solution Approach 1:
The network device pre-configures access parameters including frequency band information, cell identity information, and random access channel parameters for multiple communication systems. The terminal device receives these parameters in advance through system broadcast or dedicated signaling, eliminating the need for blind frequency scanning and enabling direct access to configured systems.
2Adaptability or versatility
If a terminal device performs blind frequency scanning to access multiple communication systems, then it can discover and connect to available systems, but access delays increase
Solution Approach 1:
The network device pre-configures access parameters including frequency band information, cell identity information, and random access channel parameters for multiple communication systems. The terminal device receives these parameters in advance through system broadcast or dedicated signaling, eliminating the need for blind frequency scanning and enabling direct access to configured systems.
3Speed
If a terminal device is configured with access parameters for multiple communication systems, then it can access or switch between systems efficiently, but the device must manage and process multiple parameter sets
Solution Approach 1:
The patent defines a universal parameter structure where the network device configures access parameters for multiple communication systems using a standardized format. The terminal device processes these parameters through a unified mechanism, receiving frequency band information, cell identity information, and random access channel parameters for multiple systems simultaneously, enabling efficient switching without increasing processing complexity.
Data Source
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Figure 2
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AI summary
Embodiments of this application provide a communication method, a communication device, and a network device. The communication method includes: receiving, by a communication device from a first network device in a first communication system, a first access parameter used to access the first communication system and a second access parameter used to access a second communication system, where a system bandwidth of the first communication system is different from a system bandwidth of the second communication system; and switching, by the communication device, from the first communication system to the second communication system based on the second access parameter when satisfying a switching condition of switching from the first communication system to the second communication system. A communication problem of facing a plurality of types of communication systems is resolved. Particularly, a communication problem caused when an NR communication system and a CIoT communication system are simultaneously operated is resolved.