CPC with DCH Enhancements via Dynamic DTX Alignment

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Solution Overview

Problem

Continuous packet connectivity (CPC) is not allowed when dedicated channel (DCH) enhancements are configured at user equipment (UE) due to the circuit-switched nature of DCH and packet-switched nature of CPC, leading to a desire for improvements in CPC operation.

Innovation Solution

A method and apparatus for configuring discontinuous transmission (DTX) and discontinuous reception (DRX) at UE when both CPC and DCH enhancements are enabled, allowing for power savings and efficient resource management by identifying and aligning DTX/DRX periods with DCH enhancements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If DCH enhancements are configured at UE, then circuit-switched communication is enabled, but CPC operation is not allowed

Engineering Contradiction:

Improvecommunication mode compatibilityVSAvoidCPC operation capability

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent implements dynamic configuration of DTX/DRX parameters based on the operational state of DCH enhancements. The system adapts transmission and reception patterns in real-time, switching between continuous and discontinuous modes depending on whether DCH is active, thereby enabling CPC operation compatibility with DCH enhancements

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent modifies system parameters by introducing DTX (discontinuous transmission) and DRX (discontinuous reception) configurations that can be dynamically adjusted. By changing transmission and reception parameter states, the system enables CPC to operate alongside DCH enhancements, resolving the incompatibility between circuit-switched and packet-switched modes

Inventive Principle:

Principle #35Parameter changes

2Reliability

If continuous transmission and reception are used, then communication reliability is maintained, but battery power consumption increases

Engineering Contradiction:

Improvecommunication reliabilityVSAvoidbattery power consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent implements periodic transmission and reception patterns through DTX and DRX mechanisms. Instead of continuous operation, the system uses periodic wake-up intervals to maintain communication reliability while significantly reducing battery power consumption during idle periods

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The patent ensures continuous communication capability is maintained through properly configured DTX/DRX parameters that keep the communication link alive while allowing periodic sleep modes. The useful action of communication is continued without interruption despite periodic power-saving states

Inventive Principle:

Principle #20Continuity of useful action

Data Source

PatentEP3120661B1Continuous packet connectivity (CPC) with dedicated channel (DCH) enhancements

Publication Date: 2021.03.10 QUALCOMM INC

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AI summary

The present disclosure presents aspects for performing continuous packet connectivity (CPC) with dedicated channel (DCH) enhancements at a user equipment (UE). For example, the aspects may include identifying whether DTX is allowed in association with the CPC at the UE during a time period, determining whether DTX is allowed in association with the DCH enhancements at the UE during the time period, and performing DTX at the UE during the time period when both the CPC and the DCH enhancements allow for DTX. As such, CPC with DCH enhancements at a UE may be performed.