Communication Apparatus Phase Vector Slot Allocation

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Solution Overview

Problem

In multi-carrier communication systems, different communication apparatuses connected to a shared transmission channel face challenges in avoiding signal collisions and ensuring timely data transmission, particularly when their systems are dissimilar, leading to potential delays and increased processing workloads.

Innovation Solution

A communication method and apparatus that transmit a control signal with a notification signal within a control signal domain, followed by data transmission using data slots uniquely allocated to the notification signal, allowing for efficient data transmission while avoiding collisions and reducing processing workloads by using phase vectors and slot allocation strategies.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If different communication apparatuses use identical phase vectors for peak suppression, then device complexity is reduced, but signal collisions cannot be avoided when multiple networks operate simultaneously

Engineering Contradiction:
Improvephase vector managementVSAvoidsignal collision avoidance
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent applies local quality by allowing each communication apparatus to use its own unique phase vector for peak suppression rather than requiring all devices to use identical phase vectors. This localized differentiation enables each device to maintain its own peak suppression characteristics while avoiding signal collisions with other devices operating in the same network, thus resolving the contradiction between device complexity and collision avoidance.

Inventive Principle:
Principle #3Local quality

2Reliability

If carrier sensing and CSMA techniques are used to suppress signal collisions, then reliability of communication is improved, but processing workload and delay increase

Engineering Contradiction:
Improvecommunication stabilityVSAvoidsignal processing delay
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent implements preliminary action by pre-allocating unique phase vectors to each communication apparatus before they begin transmitting signals. This preliminary differentiation eliminates the need for real-time carrier sensing and CSMA collision avoidance mechanisms, as signals are inherently distinguishable from the start. Consequently, the system achieves reliable collision-free communication without the processing delays associated with continuous sensing and arbitration.

Inventive Principle:
Principle #10Preliminary action

3Device complexity

If detailed slot allocation for data domain is not specified, then device complexity is reduced, but data transmission cannot satisfy required delay times

Engineering Contradiction:
Improveslot allocation managementVSAvoiddata transmission speed
Core Design Contradiction:
Device complexityVSSpeed

Solution Approach 1:

The patent applies segmentation by dividing the communication cycle into distinct control signal domains and data signal domains, with further segmentation of data slots within the data domain. Each data slot is uniquely allocated to specific communication apparatuses based on their phase vectors. This structured segmentation enables efficient slot allocation that satisfies delay requirements while maintaining manageable device complexity through clear domain boundaries and systematic resource distribution.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP2942908B1Communication apparatus, communication method, circuit module and integrated circuit
Publication Date: 2021.07.21 PANASONIC HOLDINGS CORP
  • EP2942908B1 patent drawingFigure 1
  • EP2942908B1 patent drawingFigure 2A~2B
  • EP2942908B1 patent drawingFigure 3

AI summary

In communication method for communicating via a transmission channel to which first communication apparatuses communicating based on a first communication system, second communication apparatuses communicating based on a second communication system, and third communication apparatuses communicating based on a third communication system are connected, a data transmission domain and a notification domain for notifying a data transmission within the data transmission domain are allocated to the first communication apparatuses, the second communication apparatuses, and the third communication apparatuses, respectively. In the communication method, notices of the data transmission for each of the first communication apparatuses, the second communication apparatuses and the third communication apparatuses are transmitted within the notification domain, and the data transmission domain is reallocated in accordance with the notices transmitted from the first, second and third communication apparatuses.