Multi-USIM Network Paging for Seamless Downlink Data Handling
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Solution Overview
Problem
Existing 3GPP standards do not support smooth communication for UEs with dual or multiple USIMs, leading to network inefficiencies and communication disruptions.
Innovation Solution
Implement mechanisms for coordinated leaving and resumption of USIM operations, along with providing information on pending downlink data and signaling for multi-USIM UEs, to enhance network support for dual or multi-USIM devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a user equipment supports multiple USIM cards for different network operators, then the coverage area and network selection flexibility are improved, but the power consumption increases due to multiple independent communication protocols being activated simultaneously
Solution Approach 1:
The patent merges the communication protocols of multiple USIM cards by sharing the RF front-end, baseband processor, and other common components. This allows the user equipment to support multiple network operators while reducing power consumption by avoiding duplicate activation of identical communication subsystems.
Solution Approach 2:
The patent implements a universal communication architecture where a single set of communication resources (RF front-end, baseband processor, antenna) can serve multiple USIM cards. This multi-functional design enables the system to dynamically allocate resources to different network operators without requiring separate dedicated hardware for each card.
2Device complexity
If communication resources are shared among multiple USIM cards, then the device complexity is reduced, but the performance of individual communication protocols may deteriorate due to resource contention
Solution Approach 1:
The patent employs dynamic resource allocation mechanisms that can adaptively adjust the allocation of shared communication resources based on real-time network conditions, traffic requirements, and protocol priorities. This dynamic adjustment ensures that each USIM card receives adequate resources to maintain reliable communication performance while sharing the overall system infrastructure.
Solution Approach 2:
The patent segments the communication resources into critical and non-critical components, with certain time-frequency resources, processing capabilities, and RF chains being dynamically partitioned between multiple USIM cards based on their respective needs. This segmentation allows the system to guarantee minimum performance levels for each protocol while enabling efficient sharing of excess resources.
3Adaptability or versatility
If multiple independent communication protocols are activated for different USIM cards, then the network coverage is improved, but the manufacturing cost increases due to requiring separate hardware components for each protocol
Solution Approach 1:
The patent designs a universal hardware platform that can support multiple USIM cards and different network operators through software configuration rather than requiring separate physical hardware for each protocol. This approach significantly reduces manufacturing costs by eliminating the need to produce multiple variants of communication modules while maintaining broad network coverage capability.
Solution Approach 2:
The patent utilizes parameter changes in the software layer to adapt the universal hardware platform to different network operators and protocols. By changing configuration parameters, frequency settings, and protocol stacks rather than physical hardware, the system achieves broad network coverage support at reduced manufacturing complexity and cost.
Data Source
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AI summary
One disclosure of the present specification provides a method by which a first network node performs communication on the basis of multiple USIMs. The method can comprise: receiving, from UE, a registration request message including MT service configuration information; receiving, from the UE, information informing that the UE leaves a first network including the first network node; receiving, from a second network node, information related to downlink data about the UE; and transmitting a paging message or a failure indication on the basis of the MT service configuration information and the information related to the downlink data.