Multiple Subscription Entities Sharing Signaling Connections to Cut Latency
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Solution Overview
Problem
Existing wireless communication systems with multiple subscriber identity modules (SIMs) in a user device face inefficiencies in establishing wireless signaling connections between different subscription entities, particularly when transitioning between idle and connected states.
Innovation Solution
A user device with multiple subscription entities uses a first subscription entity to establish a wireless signaling connection, sends information to a second entity, and facilitates the establishment of a second connection by passing required network information, utilizing random access procedures and radio link establishment techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each subscription entity establishes its own independent wireless signaling connection to the network, then connection reliability is improved, but device complexity and resource consumption increase
Solution Approach 1:
The patent merges the signaling connection establishment process by allowing one subscription entity (first SE) to establish a wireless signaling connection and share it with another subscription entity (second SE). Instead of each SE independently establishing separate connections, the system combines their signaling paths, reducing the number of independent connections while maintaining reliable communication for both entities.
Solution Approach 2:
The established wireless signaling connection serves multiple functions and multiple subscription entities simultaneously. The first SE's connection is made universal by enabling the second SE to also utilize this same connection for network communication, thereby reducing overall device complexity while maintaining reliability for both entities.
2Reliability
If multiple independent wireless signaling connections are established simultaneously, then network coverage and redundancy are improved, but resource utilization and energy consumption increase
Solution Approach 1:
The patent combines the resource utilization of multiple subscription entities by having them share a single wireless signaling connection. The first SE establishes the connection and the second SE reuses the same connection resources, thereby reducing total energy consumption while maintaining network redundancy through the ability of either SE to independently communicate with the network.
3Adaptability or versatility
If subscription entities transition independently from idle to connected state, then state management flexibility is improved, but network latency increases
Solution Approach 1:
The first subscription entity performs preliminary action by establishing the wireless signaling connection in advance. When the second SE needs to transition to connected state, it can immediately utilize the pre-established connection from the first SE, thereby reducing the time required for state transition while maintaining flexibility in state management.
Solution Approach 2:
The first subscription entity acts as an intermediary for the second SE during state transitions. Instead of the second SE directly establishing a new connection (which would increase latency), it leverages the existing connection established by the first SE, thereby reducing network latency while preserving state management flexibility.
Data Source
AI summary
To facilitate multiple subscription entities in a user device, solutions enabling use of an established wireless signaling connection between a network and a subscription entity to establish further wireless signaling connection(s) between the network and one or more other subscription entities are disclosed.