Quick Page Message Page Indication Count Optimization

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Solution Overview

Problem

In cellular communication systems, access terminals often experience false wakeups due to shared page indication slots, leading to excessive battery depletion and reduced battery longevity.

Innovation Solution

The solution involves determining the optimal number of page indications per page in a quick page message to minimize false wakeups by calculating and selecting the lowest false wakeup probability based on communication activity parameters, using multi-hashing with time-varying hash functions to ensure accurate page indication placement, and broadcasting this number to the access terminal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Duration of action of moving object

If the number of page indications per page is increased to reduce false wakeups, then battery life is improved, but the complexity of determining optimal parameters increases

Engineering Contradiction:

Improvebattery lifeVSAvoidparameter determination complexity

Core Design Contradiction:

Duration of action of moving objectVSDevice complexity

Solution Approach 1:

The system performs preliminary calculations to determine the optimal number of page indications per page based on communication activity parameters before actual paging operations. This pre-determination avoids complex real-time decisions and ensures optimal battery life without increasing operational complexity.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system uses communication activity parameters as feedback to dynamically adjust the number of page indications per page. By monitoring system activity and using this information to optimize paging parameters, the system extends battery life while maintaining manageable complexity through adaptive rather than static configuration.

Inventive Principle:

Principle #23Feedback

2Reliability

If multiple page indications are broadcast to reduce false wakeups, then reliability is improved, but the use of energy by the access network increases

Engineering Contradiction:

Improvepaging reliabilityVSAvoidaccess network energy consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system changes the parameter of page indications per page based on communication activity levels. By dynamically adjusting this parameter, the system achieves high paging reliability when needed while reducing energy consumption during periods of lower activity, optimizing the trade-off between reliability and energy use.

Inventive Principle:

Principle #35Parameter changes

3Reliability

If the access terminal monitors more page indication slots, then false wakeup probability is reduced, but the device complexity increases

Engineering Contradiction:

Improvefalse wakeup probabilityVSAvoidterminal monitoring complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system implements a balanced approach where the access terminal monitors a optimized number of page indication slots - not all possible slots, but enough to achieve acceptable false wakeup probability. This partial monitoring approach reduces device complexity while maintaining sufficient reliability for normal operation.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentEP2096894B1Apparatus and associated method, for setting the number of page indications per page to be included in a quick page message

Publication Date: 2011.05.11 BLACKBERRY LTD

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AI summary

Apparatus, and an associated method, for paging an access terminal in a radio communication system. A page indication count setter selects the page indication count, i.e., the number of page indications per page, to be included in a quick page message. The set page indication count is dependent upon communication activity, e.g., the system paging load, identified by a communication activity input indicia identifier.