Visited-Network Capability Signaling for Simultaneous Multi-Network Access
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Solution Overview
Problem
Wireless devices may face challenges in simultaneously accessing multiple networks, especially when authorized by their home network but not allowed by the visited network, leading to inefficiencies such as increased retransmissions, power consumption, and reduced data throughput.
Innovation Solution
Implementing efficient multiple access procedures that allow wireless devices to determine network capabilities and status before requesting access, optimizing communication protocols to reduce retransmissions and enhance quality of service.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a wireless device attempts to simultaneously access multiple networks without prior capability verification, then the device may achieve multi-network connectivity, but connection releases and retransmissions increase
Solution Approach 1:
The visited network performs capability verification and status determination before allowing simultaneous access to multiple networks. The network checks whether it supports multi-network access and whether the specific wireless device is authorized for this feature, then provides an indication to the device. This preliminary action prevents connection releases by ensuring compatibility before access attempts are made.
2Adaptability or versatility
If a wireless device attempts simultaneous network access without capability indication, then connectivity may be established, but power consumption increases due to retransmissions
Solution Approach 1:
The network provides capability indication to the wireless device before access attempts, enabling the device to determine whether to proceed with simultaneous network access requests. This preliminary information exchange prevents unnecessary retransmissions and associated power consumption by ensuring the device only attempts access when supported.
3Adaptability or versatility
If a wireless device attempts simultaneous network access without prior authorization check, then connectivity may be established, but data throughput decreases due to protocol inefficiencies
Solution Approach 1:
The visited network determines whether the wireless device is authorized for simultaneous multi-network access and provides this authorization status as an indication before access attempts. This preliminary authorization check enables efficient protocol operation by preventing access attempts that would require retransmissions, thereby maximizing data throughput.
Data Source
AI summary
A communication procedure may be used for multiple access. A wireless device may be capable of simultaneously accessing a plurality of networks that are associated with a visited network. The visited network may or may not allow the wireless device to simultaneously access the plurality of networks, for example, based on a status of the visited network. Prior to a wireless device requesting access to a plurality of networks, a visited network may indicate whether the visited network supports, for the wireless device, simultaneous access to a plurality of networks.