Dual Registration User Equipment for Wireless Communication Systems
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Solution Overview
Problem
The increasing number of user equipment (UEs) in wireless communication systems requires efficient uplink/downlink data and control information transmission using limited radio resources, while also necessitating reduced latency and compatibility with new radio access technologies.
Innovation Solution
A method and apparatus for user equipment (UE) to register with a core network of a second system independently while maintaining registration with a first system, allowing for efficient transmission of registration information and enabling dual radio access technology operation, thereby optimizing resource use and reducing latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a UE registers with only one core network system, then the device complexity and registration process are simplified, but the system throughput and service availability are limited
Solution Approach 1:
The patent divides the registration process into separate components by allowing independent registration with first and second core network systems. The UE maintains separate registration contexts with each core network, enabling parallel processing of registration operations and independent service establishment without requiring a unified complex registration procedure.
Solution Approach 2:
The patent implements multi-functionality by enabling a single UE to simultaneously register with and access services from multiple core network systems (first and second core networks). This allows the UE to leverage diverse network resources, achieve load balancing, and improve service availability by accessing multiple network functions concurrently.
2Reliability
If the UE transmits detailed registration information to each core network, then the registration reliability and service quality are improved, but the communication latency and signal overhead increase
Solution Approach 1:
The patent applies preliminary action by pre-configuring the UE with identification information and registration parameters before actual service establishment. The UE prepares and caches necessary registration data locally, enabling rapid registration decisions and reducing real-time communication latency while maintaining reliable service establishment.
Solution Approach 2:
The patent uses copying by creating simplified registration information structures that capture essential UE identification and service parameters without transmitting complete detailed data sets. The UE generates condensed registration messages that preserve reliability through key parameter inclusion while significantly reducing signal overhead and communication time.
3Adaptability or versatility
If the system supports only legacy radio access technology, then the device complexity and compatibility are maintained at low levels, but the adaptability to new technologies and service capacity are limited
Solution Approach 1:
The patent implements multi-functionality by enabling the UE to operate with both first and second radio access technologies simultaneously. The UE maintains the capability to register with and access services through multiple RATs (e.g., LTE and 5G NR), providing adaptability to diverse network technologies while managing complexity through standardized registration procedures and unified service architecture.
Solution Approach 2:
The patent applies parameter changes by dynamically adjusting the UE's operational parameters based on available network conditions and supported technologies. The UE can switch between different registration modes and service parameters depending on the network environment, enabling adaptability to new radio access technologies without requiring fundamental changes to the core registration mechanism.
Data Source
AI summary
A user equipment (UE) can perform dual registration with different radio access technology (RAT) system. The UE registers with a core network of a second system independent of a first system while maintaining registration with a core network of the first system. The UE transmits, to the second system, first information indicating that the UE has the registration with the first system when connecting to the second system. One of the first and second systems may be a LTE system using a first radio access technology (RAT), and the other one may be new RAT system using a second RAT different from the first RAT.