Multi-SIM Paging Occasion Update for Collision Resolution
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Solution Overview
Problem
Existing methods for solving paging collisions in multi-SIM terminals are inefficient and resource-intensive, often failing to address the technical problem of overlapping, typically requiring additional identifiers, and do not effectively address the technical problem of overlapping, with existing methods failing to address the technical problem of overlapping, and the technical problem of overlapping paging occasions (POs) in multi-SIM devices, leading to inefficient resource utilization and potential collisions.
Innovation Solution
A method and apparatus for a terminal and network to detect paging collisions during the registration process, allowing timely identification and resolution of paging occasion conflicts by sending collision information to the network, which generates targeted resolution information to update paging occasions, using UE identifiers, offsets, or computation methods to avoid collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the terminal randomly requests a new UE identifier from the network side, then the process is simple, but it is difficult to ensure that paging collisions can be avoided
Solution Approach 1:
The terminal performs preliminary calculation of the offset value based on the second UE identifier before requesting network assistance. This preliminary action enables the terminal to have a targeted request rather than random selection, improving collision avoidance reliability while maintaining operational simplicity.
Solution Approach 2:
The network side provides feedback by calculating and returning a new UE identifier based on the offset value sent by the terminal. This feedback mechanism ensures that the identifier adjustment is coordinated between terminal and network, reliably avoiding paging collisions.
2Reliability
If the terminal sends an offset to the network side for determining a new UE identifier, then collision resolution may be achieved, but the offset sent by the terminal may cause other paging collisions to occur
Solution Approach 1:
The terminal calculates the offset value based on the second UE identifier, and the network side applies this offset to generate a new UE identifier. This parameter change approach allows coordinated adjustment of identifiers to avoid collisions while preventing the terminal from unilaterally causing other collisions.
3Reliability
If the network side pre-configures an additional UE identifier for the terminal, then paging collision can be avoided, but this requires an additional UE identifier to be pre-configured regardless of whether there is a paging collision, which is a waste of resources
Solution Approach 1:
The network side pre-calculates and stores multiple available UE identifiers in advance, including the primary UE identifier and backup identifiers. When a paging collision is detected, the terminal can quickly switch to a pre-prepared backup identifier without requiring dynamic allocation or wasting resources on identifiers that will never be used.
4Ease of operation
If the network side randomly sends back a UE identifier when the terminal reports a collision, then the process is simple, but there is still a high possibility of paging collision
Solution Approach 1:
Instead of randomly selecting a new UE identifier, the network side calculates the offset value based on the terminal's report and uses this calculated parameter to determine a new identifier. This parameter-based approach maintains procedural simplicity while significantly improving collision avoidance probability through coordinated terminal-network calculation.
Data Source
AI summary
The present disclosure relates to paging collision resolution methods. A method comprises: registering with a network through a first SIM; receiving a first registration success message; determining a first paging occasion (PO) corresponding to the first SIM according to the first registration success message; in response to determining that a collision occurs between the first PO and a second PO corresponding to a second SIM, sending paging collision information in registration complete information to the network through the first SIM; receiving first collision resolution information determined by the network based on the paging collision information; and updating the first PO according to the first collision resolution information.