Dynamic Scheduling Message Size for DRX Battery Optimization

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Solution Overview

Problem

The existing discontinuous reception (DRX) scheduling mechanism in communication networks leads to unnecessary battery depletion in user equipment (UE) due to a fixed-sized scheduling message, causing unnecessary reception of empty control channel block sets and inefficient resource utilization.

Innovation Solution

Dynamic adjustment of the scheduling message size based on the expected number of cell broadcast messages, allowing for efficient allocation of reserved space and optimizing the DRX schedule periods by pre-allocating resources according to the anticipated message bandwidth and arrival rate.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a fixed-sized scheduling message is used, then the scheduling message structure is simple and easy to implement, but unnecessary battery depletion occurs in UE and resource utilization is inefficient

Engineering Contradiction:

Improvescheduling message structure simplicityVSAvoidUE battery depletion

Core Design Contradiction:

Ease of manufactureVSLoss of energy

Solution Approach 1:

The scheduling message size is made dynamic rather than fixed. The RNC determines the actual size of the scheduling message based on the number of cell broadcast messages to be transmitted, allowing the message size to adapt to actual network conditions and reduce unnecessary UE processing and battery consumption.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The parameter of scheduling message size is changed from a fixed value to a variable value that depends on the number of cell broadcast messages. This parameter change allows the system to optimize energy consumption by only allocating resources necessary for the actual number of messages being scheduled.

Inventive Principle:

Principle #35Parameter changes

2Ease of manufacture

If a fixed-sized scheduling message is used, then the scheduling message structure is simple, but DRX schedule periods are not efficiently utilized

Engineering Contradiction:

Improvescheduling message structure simplicityVSAvoidDRX schedule period utilization efficiency

Core Design Contradiction:

Ease of manufactureVSProductivity

Solution Approach 1:

The scheduling message size dynamically adapts to the number of cell broadcast messages, allowing the DRX schedule period to be efficiently utilized. When fewer messages need to be transmitted, the scheduling message size is reduced, freeing up time and resources that can be used for other purposes or to reduce UE power consumption during the DRX period.

Inventive Principle:

Principle #15Dynamics

3Ease of manufacture

If a fixed-sized scheduling message is used, then implementation is straightforward, but latency in message transmission increases

Engineering Contradiction:

Improveimplementation straightforwardnessVSAvoidmessage transmission latency

Core Design Contradiction:

Ease of manufactureVSLoss of time

Solution Approach 1:

By making the scheduling message size dynamic, the system can reduce the time required to transmit scheduling information. When the number of cell broadcast messages is small, the scheduling message size is reduced accordingly, decreasing the transmission time and reducing latency for the UE to receive and process scheduling information.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS8964616B2System and method for scheduling cell broadcast message

Publication Date: 2015.02.24 WSOU INVESTMENTS LLC

AI summary

A system, method and apparatus allocating reserved space for discontinuous reception (DRX) schedule period schedule messages (SM) to accommodate scheduling information for messages already received as well as messages expected to be received prior to transmitting the SM to user equipment.