Group Communication Method Using Time Slot Allocation

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Solution Overview

Problem

Existing communication devices, such as telephones, mobile phones, and interphones, are not economical or convenient for high-frequency communication within a certain range, especially in scenarios like industrial parks or family settings, due to their cost, size, and limited duplex capabilities.

Innovation Solution

A communication method that constructs a target group of devices, determines priorities, and allocates transmission time slots to enable efficient and economical full-duplex communication using the ISM 2.4 GHz frequency band, avoiding channel collisions and interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Weight of moving object

If telephone, mobile phone, or WeChat is used for long-distance communication, then communication distance is unlimited, but continuous call charges or data traffic fees must be paid

Engineering Contradiction:
Improvecommunication costVSAvoidcommunication availability
Core Design Contradiction:
Weight of moving objectVSReliability

Solution Approach 1:

The patent segments the communication spectrum into multiple frequency points (16 frequency points in the 2.4GHz ISM band) and divides communication into time slots, creating a structured shared communication medium that eliminates per-call charges while maintaining continuous availability through resource allocation

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The communication device is designed to perform multiple functions: it can operate as a group communication device, establish one-to-one connections, and function as a wireless router, providing versatile communication capabilities without requiring separate paid services for different communication modes

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Ease of operation

If interphone is used for half-duplex voice communication, then communication cost is reduced, but it only supports half-duplex communication and requires pressing PTT button

Engineering Contradiction:
Improvecommunication convenienceVSAvoidoperation complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent implements periodic time-slot-based transmission where each device has allocated time windows for transmitting and receiving signals. This periodic structure enables automatic full-duplex communication without requiring manual PTT button pressing, as the system automatically switches between transmit and receive modes according to the predetermined time schedule

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The communication device automatically manages its own transmission and reception operations based on pre-configured time slots and frequency points, eliminating the need for manual intervention. The device self-regulates its communication behavior, including automatic frequency selection, time-slot synchronization, and signal transmission/reception switching

Inventive Principle:
Principle #25Self-service

3Volume of moving object

If interphone uses open ISM 430-470 MHz frequency band, then communication cost is reduced, but the device becomes bulky due to large antenna

Engineering Contradiction:
Improvedevice sizeVSAvoidcommunication stability
Core Design Contradiction:
Volume of moving objectVSReliability

Solution Approach 1:

The patent changes the operating frequency parameter from the traditional 430-470 MHz band to the 2.4 GHz ISM band. This frequency change allows for significantly smaller antenna dimensions while maintaining communication effectiveness, as higher frequencies enable smaller wavelength and thus smaller antenna structures, reducing device bulkiness

Inventive Principle:
Principle #35Parameter changes

4Productivity

If multiple devices communicate simultaneously on the same frequency, then communication efficiency is improved, but air collision phenomena increase

Engineering Contradiction:
Improvecommunication efficiencyVSAvoidsignal interference
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent segments both the frequency spectrum and time domain into discrete units (16 frequency points and multiple time slots). By assigning different frequency-time combinations to different devices or communication groups, the system enables simultaneous communications while preventing signal collisions through structured resource allocation

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces multiple dimensions for resource allocation: frequency dimension (16 different frequency points) and time dimension (multiple time slots). This multi-dimensional resource space allows numerous devices to communicate simultaneously without interference, as each device operates in a uniquely assigned frequency-time slot combination

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS11304214B2Communication method for a communication device, electronic device, and storage medium
Publication Date: 2022.04.12 BOE TECHNOLOGY GROUP CO LTD
  • US11304214B2 patent drawing
  • US11304214B2 patent drawing
  • US11304214B2 patent drawing

AI summary

Disclosed are a communication method of a communication device, an electronic device, and a storage medium, the communication method includes: constructing a target group, wherein the target group includes the communication device and at least one other communication device, and each communication device in the target group sequentially transmits a message on a communication frequency point of the target group; determining a priority of the communication device in the target group, and determining a transmission time slot corresponding to the priority according to the priority; transmitting data message in the transmission time slot, and receiving data message at a time other than the transmission time slot. With the communication method, the electronic device and the storage medium provided by the present disclosure, communication can be implemented in a relatively convenient and economical way.