Network Scheduling via Distance-Based Resource Allocation

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Solution Overview

Problem

In wireless communication networks, existing technologies face challenges in efficiently allocating shared channel resources among multiple users based on their distances from the network infrastructure, leading to inefficiencies in power consumption and increased inter-channel interference.

Innovation Solution

The proposed solution involves a control apparatus with processing circuitry that determines distances to terminal devices and allocates resource elements in a shared channel, prioritizing frequencies closer to the center frequency for far-out devices and those near the boundaries for nearby devices, thereby reducing power consumption and inter-channel interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If resource elements near frequency boundaries are allocated to nearby terminal devices, then inter-channel interference is reduced, but power consumption increases

Engineering Contradiction:
Improveinter-channel interferenceVSAvoidpower consumption
Core Design Contradiction:
Object-affected harmful factorsVSUse of energy by moving object

Solution Approach 1:

The patent applies local quality by allocating different frequency sub-bands to terminal devices based on their specific conditions (distance from base station). Nearby devices receive boundary sub-bands while far devices receive center sub-bands, creating a localized optimization where each device gets frequency resources tailored to its position and interference environment, thereby reducing overall inter-channel interference while managing power consumption efficiently.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent changes the frequency allocation parameter dynamically based on terminal device distance. By adjusting which sub-bands are allocated to which devices according to their distance from the base station, the system optimizes the balance between inter-channel interference reduction and power consumption, achieving better overall network efficiency.

Inventive Principle:
Principle #35Parameter changes

2Object-affected harmful factors

If resource elements near frequency boundaries are allocated to terminal devices, then inter-channel interference is reduced, but maximum power reduction requirement increases

Engineering Contradiction:
Improveinter-channel interferenceVSAvoidmaximum power reduction requirement
Core Design Contradiction:
Object-affected harmful factorsVSPower

Solution Approach 1:

The patent implements local quality by assigning boundary frequency sub-bands specifically to nearby terminal devices that are less susceptible to interference effects, while allocating center sub-bands to distant devices. This localized frequency assignment strategy reduces the maximum power reduction requirement across the network by matching each device's allocation to its propagation characteristics.

Inventive Principle:
Principle #3Local quality

3Device complexity

If resource elements are allocated without considering distance, then allocation simplicity is maintained, but power density distribution becomes uneven

Engineering Contradiction:
Improveallocation complexityVSAvoidpower density distribution
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent introduces distance as a key parameter in the resource allocation process. By changing the allocation strategy from distance-agnostic to distance-aware, the system achieves more even power density distribution across the network while maintaining manageable complexity through systematic sub-band assignment rules based on terminal position.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS10349420B2Method and apparatus for network scheduling
Publication Date: 2019.07.09 MEDIATEK INC
  • US10349420B2 patent drawing
  • US10349420B2 patent drawing
  • US10349420B2 patent drawing

AI summary

Aspects of the disclosure provide a control apparatus that includes transceiver circuitry and processing circuitry. The transceiver circuitry is configured to transmit/receive signals from a plurality of terminal devices using a shared channel. The processing circuitry is configured to determine distances to the plurality of terminal devices, allocate resource elements in the shared channel according to the distances, and communicate, via the transceiver circuitry, with the plurality of terminal devices according to the allocation of the resource elements in the shared channel.