WTRU Paging Occasion Collision Avoidance via Network Parameters
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Solution Overview
Problem
In wireless communication systems, the issue of paging occasion collisions arises when a wireless device with multiple subscriptions must monitor multiple networks simultaneously, leading to disruptions in service due to frequent switching between networks, resulting in inefficiencies and service disruptions.
Innovation Solution
A method for a wireless transmit/receive unit (WTRU) to assess both networks, determine if a paging occasion collision exists, and request a collision avoidance parameter from the selected network to calculate a new paging occasion, thereby avoiding collisions and optimizing network monitoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a WTRU monitors multiple networks simultaneously to maintain service continuity, then service reliability is improved, but device complexity and power consumption increase
Solution Approach 1:
The system performs preliminary detection of paging occasion collisions before they occur. The WTRU calculates potential PO collisions in advance and proactively requests collision avoidance parameters from the network, preventing service disruptions before they happen
Solution Approach 2:
The network acts as an intermediary by providing collision avoidance parameters (such as alternative PO indices or timing adjustments) that the WTRU uses to resolve PO collisions. This mediator approach allows the WTRU to maintain monitoring of multiple networks without directly managing the complexity of collision resolution itself
2Adaptability or versatility
If a WTRU frequently switches between networks to handle PO collisions, then network adaptability is improved, but service disruption increases
Solution Approach 1:
The system detects PO collisions in advance and requests collision avoidance parameters before the collision occurs. This preliminary action allows the WTRU to adjust its monitoring schedule proactively, avoiding service disruptions that would result from reactive network switching
Solution Approach 2:
The WTRU dynamically adjusts its paging occasion timing based on received collision avoidance parameters. Instead of frequently switching networks, the system flexibly modifies monitoring schedules to avoid collisions, maintaining service continuity while adapting to multiple network requirements
3Adaptability or versatility
If a WTRU monitors paging occasions in multiple networks, then network coverage is improved, but power consumption increases
Solution Approach 1:
By detecting PO collisions in advance and obtaining collision avoidance parameters, the system prevents unnecessary wake-ups and monitoring attempts at colliding POs. This reduces power consumption by avoiding redundant monitoring activities while maintaining multi-network coverage
Solution Approach 2:
The system extracts and removes colliding POs from the monitoring schedule by applying collision avoidance parameters. This eliminates redundant monitoring activities that would consume battery power, keeping only the necessary non-colliding POs for multi-network coverage
Data Source
AI summary
A method for use in wireless transmit/receive unit (WTRU) which assesses both a first network and a second network to receive radio frames from each of the first network and the second network is disclosed. The method comprise: obtaining a first paging occasion (PO) as the first network's current PO and a second PO as the second network's current PO; determining whether there is a PO collision between the first PO and the second PO, on condition that there is the PO collision, selecting a network from the first network and the second network, and sending a request to the selected network; receiving, from the selected network, a collision avoidance parameter corresponding to the request; calculating a third PO for the selected network using the collision avoidance parameter, and using the third PO as the selected network's current PO.