Adding Connection Identifier to Power Save Class

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Solution Overview

Problem

In IEEE 802.16e communication systems, activating a new service flow requires deactivating, redefining, and reactivating the existing power saving class (PSC), which leads to substantial overhead, negatively affecting battery life and inefficiently using network resources due to the lengthy process and numerous messages exchanged.

Innovation Solution

A method that generates a type-length-value (TLV) to specify the existing PSC and integrates it into a dynamic service message request, allowing the connection identifier to be automatically added to the PSC without deactivating or redefining the existing PSC, thereby reducing the number of messages and enabling faster entry into sleep mode.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the existing PSC is deactivated, redefined, and reactivated to add a new CID, then the new service flow can be activated, but the process requires substantial overhead and numerous messages exchanged

Engineering Contradiction:

Improveability to activate new service flowVSAvoidnumber of messages exchanged

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The mobile unit includes the PSC identifier in the initial DSA-REQ message, preparing the base station in advance with the necessary information to add the new CID to the existing PSC without requiring PSC deactivation and reactivation sequences

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The PSC identifier is extracted from the mobile unit's internal state and embedded in the DSA-REQ message, allowing the base station to directly modify the existing PSC by adding the new CID without triggering a full PSC redefinition process

Inventive Principle:

Principle #2Taking out (Extraction)

2Adaptability or versatility

If the existing PSC is deactivated, redefined, and reactivated to add a new CID, then the new service flow can be activated, but the process takes lengthy time

Engineering Contradiction:

Improveability to activate new service flowVSAvoidtime to activate new service flow

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The mobile unit includes the PSC identifier in the initial DSA-REQ message, enabling the base station to immediately add the new CID to the existing PSC during the service flow activation process without time-consuming PSC deactivation and reactivation sequences

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The invention skips the lengthy intermediate steps of PSC deactivation, redefinition, and reactivation by directly adding the new CID to the existing PSC through a modified DSA-REQ/DSA-RSP exchange, dramatically reducing the time required for service flow activation

Inventive Principle:

Principle #21Skipping (Rushing through)

3Adaptability or versatility

If the existing PSC is deactivated, redefined, and reactivated to add a new CID, then the new service flow can be activated, but battery life is negatively affected

Engineering Contradiction:

Improveability to activate new service flowVSAvoidbattery life

Core Design Contradiction:

Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The mobile unit includes the PSC identifier in the initial DSA-REQ message, enabling the base station to directly add the new CID to the existing PSC without triggering energy-intensive PSC deactivation and reactivation sequences that would keep the mobile unit awake

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The invention skips the lengthy PSC redefinition process that prevents the mobile unit from entering sleep mode, allowing the mobile unit to quickly return to sleep mode after service flow activation, thereby conserving battery life

Inventive Principle:

Principle #21Skipping (Rushing through)

4Adaptability or versatility

If the existing PSC is deactivated, redefined, and reactivated to add a new CID, then the new service flow can be activated, but network resources are inefficiently used

Engineering Contradiction:

Improveability to activate new service flowVSAvoidnetwork resource efficiency

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The mobile unit includes the PSC identifier in the initial DSA-REQ message, allowing the base station to efficiently add the new CID to the existing PSC during the service flow activation process without requiring additional PSC management messages that consume network resources

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS8054771B2Method and system for adding a new connection identifier to an existing power save class

Publication Date: 2011.11.08 GOOGLE TECHNOLOGY HOLDINGS LLC

AI summary

A method (300) and system (200) for adding a connection identifier to an existing power saving class. The method can include the steps of—at a mobile unit (212) that is associated with at least one existing power saving class—generating (310) a type-length-value that specifies the identification of the existing power saving class, and integrating (312) the type-length-value into a dynamic service message request. The method can also include the step of transmitting (314) the dynamic service message request to a base station (210) such that the connection identifier will be automatically added to the existing power saving class without requiring deactivation or redefinition of the existing power saving class.