Postponing Data Service Requests During Cell Reselection

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Solution Overview

Problem

Wireless devices face inefficiencies in data retry performance due to burdens on device resources from search algorithms used to acquire and re-acquire service in cellular networks, leading to potential network congestion and increased power consumption.

Innovation Solution

A method where a user equipment (UE) device monitors the status of cell reselection and postpones data service requests based on the reselection status, allowing lower layers to complete reselection measurements uninterrupted, thereby reducing the need for frequent retries and minimizing resource burden.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the UE immediately resends data service requests after failure, then data service delivery is prioritized, but device resources are burdened and network congestion increases

Engineering Contradiction:
Improvedata service delivery speedVSAvoiddevice resource consumption
Core Design Contradiction:
ProductivityVSUse of energy by moving object

Solution Approach 1:

The UE performs cell reselection measurements and evaluations before resenting data service requests. By proactively assessing radio conditions and identifying suitable target cells in advance, the UE ensures that resource-intensive reselection operations are completed prior to request resending, thereby reducing the burden on device resources during the critical data service delivery phase.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If the UE performs search algorithms to acquire service, then service connectivity is established, but device resources are burdened

Engineering Contradiction:
Improveservice connectivityVSAvoidsearch algorithm complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The service acquisition process is divided into distinct phases: initial cell search, radio condition monitoring, cell reselection measurement, and data service request. By segmenting the search algorithm into these manageable stages, the UE can efficiently complete each phase without overwhelming device resources, while still ensuring reliable service connectivity through systematic evaluation at each step.

Inventive Principle:
Principle #1Segmentation

3Reliability

If the UE postpones data service requests during cell reselection, then reselection measurements are completed uninterrupted, but data service delivery is delayed

Engineering Contradiction:
Improvecell reselection accuracyVSAvoiddata service request delay
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The UE postpones data service requests only when cell reselection measurements are actively being performed, ensuring that critical reselection operations complete without interruption. Once reselection is completed or determined unnecessary, the UE immediately resumes data service request processing. This time-bound postponement strategy maintains reselection accuracy while minimizing overall service delivery delay.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS9883546B2Postponing a resending of a data service request
Publication Date: 2018.01.30 APPLE INC
  • US9883546B2 patent drawing
  • US9883546B2 patent drawing
  • US9883546B2 patent drawing

AI summary

Apparatuses, systems, and methods for user equipment (UE) devices to perform a postponement of a data service request are described. A UE may detect a data service request failure during cell reselection and postpone a resend of the data service request based on a status of the cell reselection. The status may be an indication that the UE is attempting to camp on a cell or that the UE is monitoring one or more metrics associated with cell reselection. To postpone the data service request, the UE may postpone the data service request for a specified period of time or until the cell reselection is complete. The status may be monitored on a first layer of a protocol stack and the data service request may generated by a second layer of the protocol stack. The postponement may be for a fixed or variable time period.