Channel Allocation Apparatus for Communication Systems

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Solution Overview

Problem

Current communication systems, such as WLAN, face challenges in allocating frequency channels to multiple stations (STAs) without considering their transmission modes, leading to channel interference and disrupted data transmission and reception.

Innovation Solution

A channel allocation apparatus and method that receives terminal information from STAs, checks their transmission modes, and allocates channels in available frequency bands to minimize interference, using a receiving unit, checking unit, and allocating unit to transmit channel allocation information to STAs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If frequency channels are allocated to multiple STAs without considering transmission modes, then channel allocation is simple, but channel interference occurs and data transmission is disrupted

Engineering Contradiction:
Improvechannel allocation simplicityVSAvoiddata transmission reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent applies local quality by allocating channels based on individual STA transmission modes. Each STA receives channel allocation tailored to its specific transmission mode (e.g., OFDM, DSSS, CCK), ensuring that the channel assignment is optimized for local transmission characteristics rather than applying a uniform allocation method to all STAs.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent implements dynamics by making channel allocation adaptive to transmission modes. The base station dynamically determines channel assignments based on the transmission modes of different STAs, allowing the system to adjust channel allocation in response to changing transmission requirements and minimize interference between different transmission types.

Inventive Principle:
Principle #15Dynamics

2Productivity

If channels are allocated without considering transmission modes, then allocation process is fast, but channel interference prevents normal data transmission

Engineering Contradiction:
Improvechannel allocation speedVSAvoiddata transmission reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent applies preliminary action by having STAs report their transmission modes to the base station before channel allocation occurs. This advance information allows the base station to pre-calculate optimal channel assignments that prevent interference, rather than having to resolve interference issues after allocation has already been made.

Inventive Principle:
Principle #10Preliminary action

3Productivity

If frequency channels are allocated to multiple STAs, then data transmission capacity increases, but channel interference occurs reducing transmission performance

Engineering Contradiction:
Improvedata transmission capacityVSAvoidtransmission performance
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent applies local quality by allocating channels based on individual STA transmission modes. Each STA receives channel allocation tailored to its specific transmission mode (e.g., OFDM, DSSS, CCK), ensuring that the channel assignment is optimized for local transmission characteristics rather than applying a uniform allocation method to all STAs.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent implements dynamics by making channel allocation adaptive to transmission modes. The base station dynamically determines channel assignments based on the transmission modes of different STAs, allowing the system to adjust channel allocation in response to changing transmission requirements and minimize interference between different transmission types.

Inventive Principle:
Principle #15Dynamics

4Adaptability or versatility

If limited frequency channels are allocated to multiple STAs, then channel utilization increases, but channel interference occurs disrupting data transmission

Engineering Contradiction:
Improvechannel utilizationVSAvoiddata transmission reliability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent applies local quality by allocating channels based on individual STA transmission modes. Each STA receives channel allocation tailored to its specific transmission mode (e.g., OFDM, DSSS, CCK), ensuring that the channel assignment is optimized for local transmission characteristics rather than applying a uniform allocation method to all STAs.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent implements dynamics by making channel allocation adaptive to transmission modes. The base station dynamically determines channel assignments based on the transmission modes of different STAs, allowing the system to adjust channel allocation in response to changing transmission requirements and minimize interference between different transmission types.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS8995378B2Apparatus and method for allocating channel in communication system
Publication Date: 2015.03.31 ELECTRONICS & TELECOMM RES INST
  • US8995378B2 patent drawing
  • US8995378B2 patent drawing
  • US8995378B2 patent drawing

AI summary

A channel allocation apparatus in a communication system includes: a receiving unit configured to receive terminal information containing transmission mode information of a plurality of stations (STAs) from the STAs; a checking unit configured to check transmission modes of the STAs and check a frequency band available for the STAs; an allocating unit configured to allocate channels of an allocable frequency band in the available frequency band to the STAs, according to the transmission modes of the STAs; and a transmitting unit configured to transmit channel allocation information on the channels allocated to the STAs to the STAs.