Multi-Subscription Mobile Station Paging Slot Segmentation

Solution Overview

Problem

Mobile stations with multiple subscriptions face increased battery drain due to the need to monitor multiple paging slots, which reduces their battery life compared to single subscription devices.

Innovation Solution

Implementing standby paging and common hash key techniques that allow a mobile station to operate one subscription in active mode and others in standby mode, sharing a common hash key to minimize wake-up times and reduce battery consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a mobile station monitors multiple paging slots for multiple subscriptions, then it can receive calls for all subscriptions, but battery life is reduced due to increased battery drain

Engineering Contradiction:

Improvecall reception capabilityVSAvoidbattery life

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent segments the paging monitoring task by designating one subscription as primary and others as secondary. The mobile station monitors only one paging slot (associated with the primary subscription) rather than multiple slots, reducing energy consumption while maintaining the ability to receive calls for all subscriptions through the segmented roles of primary and secondary subscriptions

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent extracts the paging monitoring function from multiple subscriptions and consolidates it to a single primary subscription. The secondary subscriptions are taken out of the active monitoring loop, eliminating unnecessary energy expenditure while preserving call reception capability through the primary subscription's monitoring of a single paging slot

Inventive Principle:

Principle #2Taking out (Extraction)

2Reliability

If a mobile station monitors multiple paging slots for multiple subscriptions, then it can receive calls for all subscriptions, but battery drain increases

Engineering Contradiction:

Improvecall reception capabilityVSAvoidbattery drain

Core Design Contradiction:

ReliabilityVSLoss of energy

Solution Approach 1:

The patent segments the paging monitoring task by designating one subscription as primary and others as secondary. The mobile station monitors only one paging slot (associated with the primary subscription) rather than multiple slots, reducing energy consumption while maintaining the ability to receive calls for all subscriptions through the segmented roles of primary and secondary subscriptions

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent extracts the paging monitoring function from multiple subscriptions and consolidates it to a single primary subscription. The secondary subscriptions are taken out of the active monitoring loop, eliminating unnecessary energy expenditure while preserving call reception capability through the primary subscription's monitoring of a single paging slot

Inventive Principle:

Principle #2Taking out (Extraction)

3Use of energy by moving object

If a mobile station uses standby paging and common hash key techniques, then battery life is enhanced by reducing wake-ups, but paging latency may be impacted

Engineering Contradiction:

Improvebattery lifeVSAvoidpaging latency

Core Design Contradiction:

Use of energy by moving objectVSLoss of time

Solution Approach 1:

The patent applies preliminary action by pre-designating a primary subscription and associating it with a common hash key before paging occurs. This pre-configuration allows the mobile station to calculate and monitor the correct single paging slot in advance, enabling stand By paging mode where the device can sleep longer without worrying about missing pages for secondary subscriptions, thus extending battery life while maintaining acceptable latency through the pre-established primary subscription pathway

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS8626206B2Paging mechanisms for mobile stations with multiple subscriptions

Publication Date: 2014.01.07 ZTE CORP

AI summary

Apparatuses, techniques, and systems for operating a mobile station with multiple subscriptions includes transmitting a paging message for a subscriber identity of two or more subscriber identities that are associated with a single mobile station over a wireless communication channel based on a paging cycle structure including multiple paging slots. The two or more subscriber identities can include a first subscriber identity and a second, different subscriber identity. Transmitting the paging message can include using, during a paging cycle based on the paging cycle structure, a single paging slot to transmit the paging message, where the single paging slot is associated with the two or more subscriber identities.