Power Control Command Transmission Scheduling

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Solution Overview

Problem

The existing power control command (PCC) transmission scheme in wireless communication networks experiences spikes in power utilization due to simultaneous transmissions to multiple access terminals, leading to potential power blocking when the overall power utilization exceeds a threshold, negatively affecting network performance.

Innovation Solution

Implementing a PCC transmission scheme where PCCs are sent to access terminals on differing time schedules to reduce the likelihood of simultaneous transmissions, thereby minimizing power spikes and preventing power blocking.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If power control commands are sent simultaneously to multiple access terminals, then the power control process is efficient and responsive, but power utilization spikes occur leading to power blocking

Engineering Contradiction:
Improvepower control effectivenessVSAvoidpower utilization
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent applies periodic action by implementing a time schedule for sending power control commands to access terminals. The base station sends PCCs at different time intervals to different terminals rather than simultaneously, creating a periodic transmission pattern that distributes power usage over time and prevents power blocking while maintaining effective power control.

Inventive Principle:
Principle #19Periodic action

2Device complexity

If power control commands are sent on the same time schedule to multiple access terminals, then the transmission process is simple and coordinated, but simultaneous transmissions cause power spikes

Engineering Contradiction:
Improvetransmission coordinationVSAvoidpower utilization
Core Design Contradiction:
Device complexityVSUse of energy by moving object

Solution Approach 1:

The patent applies segmentation by dividing the transmission of power control commands into separate time slots for different access terminals. Instead of sending all PCCs on the same schedule, the base station segments the transmission timeline and assigns different schedules to different terminals, thereby reducing simultaneous transmissions and power spikes while maintaining coordination through systematic scheduling.

Inventive Principle:
Principle #1Segmentation

3Use of energy by moving object

If different time schedules are assigned to power control commands for different access terminals, then power spikes are reduced, but the transmission scheduling becomes more complex

Engineering Contradiction:
Improvepower utilizationVSAvoidscheduling mechanism
Core Design Contradiction:
Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The patent applies dynamics by implementing a flexible scheduling mechanism where the base station dynamically assigns different time schedules to different access terminals based on their specific needs and channel conditions. This dynamic approach allows the system to adaptively manage power control command transmissions, reducing power spikes while handling the scheduling complexity through intelligent, condition-based allocation rather than rigid fixed schedules.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS8731597B1Method and system of transmitting power control commands
Publication Date: 2014.05.20 SPRINT SPECTRUM LLC
  • US8731597B1 patent drawing
  • US8731597B1 patent drawing
  • US8731597B1 patent drawing

AI summary

A power control command (PCC) transmission scheme is disclosed. In one embodiment, the PCC transmission scheme may involve an access network engaging in a respective existing communication session with each of a plurality of existing access terminals and sending a respective existing series of power control commands (PCCs) directed to a respective existing access terminal according to a respective existing time schedule. The transmission scheme may further involve the access network deciding to initiate a new communication session with a new access terminal and, in response to the deciding, assigning a new time schedule for sending a new series of PCCs directed to the new access terminal that differs from at least one respective existing time schedule. The transmission scheme may further involve engaging in the new communication session with the new access terminal and sending the new series of PCCs according to the new time schedule.