Wireless Device Busy Indication for Paging Response
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Solution Overview
Problem
In wireless communication systems, particularly in MUSIM operations, there is a need for efficient methods to handle paging responses without causing service interruptions or significant signaling overhead, especially when a user equipment (UE) is already connected to one network and receives a paging from another network.
Innovation Solution
A method and apparatus where a wireless device performs an uplink transmission to inform the first network that it does not respond to the paging, using a random access preamble or RRC setup request message, allowing the network to stop transmitting paging messages and conserve resources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wireless device sends a traditional paging response to the first network, then the network can be informed of the device's availability, but it causes service interruption and signaling overhead while the device is connected to the second network
Solution Approach 1:
The patent extracts the essential function of paging response (indicating device availability status) from the traditional complex response mechanism. Instead of using full RRC signaling procedures, the device sends a simplified indication message that conveys the necessary information with minimal overhead, separating the critical notification function from the complete connection management protocol.
Solution Approach 2:
The patent changes the parameter of response complexity by introducing a new indication mechanism that uses simplified signaling parameters. The device transitions from using standard RRC connection establishment procedures to using a lightweight indication message with reduced signaling parameters, thereby decreasing the overall signaling overhead while maintaining the essential paging response functionality.
2Reliability
If the network continues to transmit paging messages to the wireless device, then it ensures reliable delivery, but it wastes network resources when the device does not respond
Solution Approach 1:
The patent implements a feedback mechanism where the wireless device actively informs the network of its paging response status. By sending an indication message that includes information about whether the device will respond to the paging, the network receives real-time feedback and can adjust its transmission behavior accordingly, stopping unnecessary paging messages when the device indicates it cannot respond.
Solution Approach 2:
The patent applies preliminary action by having the device send the indication message before the network would otherwise continue transmitting paging messages. This advance notification allows the network to preemptively stop paging transmissions, preventing waste of network resources while ensuring the device's unavailability status is communicated in advance.
3Reliability
If the wireless device establishes a full RRC connection to respond to paging, then reliable communication is established, but service interruption occurs in the current network
Solution Approach 1:
The patent applies partial action by implementing a simplified indication mechanism that performs only the essential function of notifying the network about paging response capability, without executing the complete RRC connection establishment procedure. This partial signaling approach provides sufficient information to the network to make routing decisions while avoiding the full overhead and service interruption associated with complete connection establishment.
Data Source
AI summary
The present disclosure relates to a paging response in wireless communications. According to an embodiment of the present disclosure, a wireless device may perform a UL transmission for informing that the wireless device does not respond to a paging from a first network to the first network, while communicating with the first network. The UL transmission is related to the ID of the wireless device among a list of IDs of the wireless devices in the paging.