Transmitting Apparatus Schedule Element Segmentation for Multi-Standard Wireless Networks

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Solution Overview

Problem

Efficient scheduling in multi-standard environments, particularly where IEEE 802.11ay and IEEE 802.11ad standards coexist, is insufficient, leading to reduced channel utilization efficiency due to misinterpretation of allocations by DMG_PCP/AP in adjacent networks.

Innovation Solution

The transmitting apparatus generates MAC frames that include both ESE and EDMG_ESE, with ESE containing all scheduling information for allocations involving the primary channel and EDMG_ESE providing difference information for allocations not involving the primary channel, allowing DMG_PCP/AP to accurately decode and schedule allocations without misinterpretation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single type of schedule element is used in multi-standard environments, then device complexity is reduced, but channel utilization efficiency deteriorates due to misinterpretation of allocations

Engineering Contradiction:
Improveschedule element structureVSAvoidchannel utilization efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The schedule element is segmented into two types: ESE for 802.11ad allocations and EDMG_ESE for 802.11ay allocations. Each segment serves a specific standard, allowing receiving devices to accurately interpret allocations according to their supported standard without misinterpretation, thereby improving channel utilization efficiency while maintaining manageable device complexity through structured segmentation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different parts of the schedule element structure are optimized for different standards: ESE contains fields appropriate for 802.11ad while EDMG_ESE contains fields optimized for 802.11ay. This local quality optimization ensures that each standard receives the appropriate information format, improving overall system efficiency without requiring all devices to handle all field types.

Inventive Principle:
Principle #3Local quality

2Measurement precision

If separate schedule elements are generated for different standards, then scheduling accuracy is improved, but device complexity increases due to dual schedule element generation

Engineering Contradiction:
Improvescheduling accuracyVSAvoidschedule element generation
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The transmitting device performs preliminary classification of allocations by standard type before generating schedule elements. By determining in advance which allocations belong to 802.11ad and which to 802.11ay, the device can systematically generate the appropriate ESE or EDMG_ESE elements, improving scheduling accuracy while managing complexity through pre-planned generation logic.

Inventive Principle:
Principle #10Preliminary action

3Loss of information

If comprehensive allocation information is included for all channels, then scheduling completeness is improved, but information transmission overhead increases

Engineering Contradiction:
Improvescheduling information completenessVSAvoidinformation transmission overhead
Core Design Contradiction:
Loss of informationVSQuantity of substance

Solution Approach 1:

The patent extracts and separates allocation information into appropriate schedule element types based on the standard being used. By taking out only the necessary information for each standard (ESE for ad, EDMG_ESE for ay) and placing it in the corresponding element type, the system maintains scheduling information completeness while reducing redundant information transmission overhead that would occur if all information were included in every element.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentUS11706755B2Transmitting apparatus and receiving apparatus
Publication Date: 2023.07.18 PANASONIC INTELLECTUAL PROPERTY CORP OF AMERICA
  • US11706755B2 patent drawing
  • US11706755B2 patent drawing
  • US11706755B2 patent drawing

AI summary

A transmitting apparatus generates at least one of a first type of schedule element supporting an allocation involving a single channel and a second type of schedule element supporting an allocation involving a plurality of channels and transmits a MAC frame including the generated at least one schedule element over a first channel. When the allocation involving the plurality of channels includes the first channel, the transmitting apparatus generates a first type of schedule element including information regarding the allocation involving the plurality of channels and generates the second type of schedule element including difference information, and when the allocation involving the plurality of channels does not include the first channel, the transmitting apparatus omits the generation of the first type of schedule element and generates the second type of schedule element including all the information regarding the allocation involving the plurality of channels.