Wireless Device Multi-Identity Communication Switching
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Solution Overview
Problem
Current wireless devices with a single receiver or transmitter are unable to simultaneously communicate with multiple networks using multiple subscriber identities due to self-blocking and intermodulation issues, limiting them to a single connection at a time.
Innovation Solution
A method and configuration for wireless devices and network nodes that allow simultaneous communication using multiple subscriber identities by establishing radio connections with multiple networks, pausing data scheduling on one connection during use of another, and utilizing switching timers and DRX cycles to manage resource allocation efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a wireless device uses a single receiver or transmitter to communicate with multiple networks using multiple subscriber identities, then the device complexity is reduced, but the device cannot simultaneously communicate with both networks due to self-blocking and intermodulation issues
Solution Approach 1:
The patent implements dynamic switching between multiple radio connections by introducing timing parameters (switching timers, DRX cycles) that control when the single transceiver alternates between different networks. This dynamic time-division approach allows the device to maintain multiple active connections while physically using only one transceiver at a time, resolving the contradiction between simplified hardware and simultaneous communication capability
Solution Approach 2:
The patent employs periodic Discontinuous Reception (DRX) cycles and switching timers to create structured time intervals for communicating with different networks. By organizing communication into periodic cycles where the device alternates between monitoring different radio connections at specific intervals, the system enables multi-network connectivity with a single transceiver, transforming the hardware limitation into a manageable temporal pattern
2Adaptability or versatility
If a wireless device establishes multiple radio connections simultaneously using multiple subscriber identities, then the adaptability of the device is improved, but the device cannot maintain active connections on both networks at the same time with single RX/TX configuration
Solution Approach 1:
The patent segments the communication time into distinct intervals allocated to different radio connections. By dividing the operational timeline into separate communication windows for each network (controlled by switching timers and DRX cycles), the device can maintain multiple logical connections simultaneously while physically activating only one connection at a time, thus maintaining adaptability while simplifying operational management
Solution Approach 2:
The patent introduces switching timers and DRX cycle mechanisms as intermediary control elements that manage the alternation between multiple radio connections. These intermediaries automatically handle the switching logic and timing coordination, eliminating the need for complex manual operation while enabling the device to maintain multiple adaptive connections through automated time-division multiplexing
3Productivity
If a wireless device switches between multiple established radio connections using a single transceiver, then the resource utilization is optimized, but data scheduling on one connection must be paused during communication on another connection
Solution Approach 1:
The patent ensures continuity of useful action by implementing overlapping DRX cycles and strategic timing of switching events. By carefully coordinating the DRX wake-up times and switching intervals, the device minimizes idle periods between connections and ensures that data scheduling on one connection can resume quickly after switching, reducing the perception of interruption while maintaining efficient resource utilization through continuous alternating operation
Solution Approach 2:
The patent applies preliminary action by pre-configuring switching timers and DRX cycle parameters before actual data transmission begins. This advance planning allows the device to proactively schedule switching events that align with data availability and network requirements, minimizing scheduling interruptions by preparing the transition timing in advance rather than reacting to data flow demands
Data Source
AI summary
A method is disclosed, performed by a wireless device, for simultaneous communication using a plurality of subscriber identities. The method comprises establishing, with a first network node, a first radio connection. The first radio connection is associated with a first subscriber identity out of the plurality of subscriber identities. The method comprises establishing, with a second network node, a second radio connection. The second radio connection is associated with the second subscriber identity out of the plurality of subscriber identities. The method comprises transmitting, to the first and/or the second network node, a control message indicating that the wireless device intends to communicate simultaneously using more than one of the plurality of subscriber identities. The method comprises communicating over one of the first and the second established radio connections at a time, wherein scheduling of data on one of the first and the second established radio connections is paused during time periods when the wireless device is communicating using the other established radio connection.