Communication Control Device for Wireless Coexistence
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current technologies for secondary usage of frequencies face challenges in achieving synchronization between different cellular systems and radio access technologies, particularly in mixed carrier environments, leading to co-channel and adjacent channel interference, which is expected to worsen with the introduction of 5G and other advanced wireless systems.
Innovation Solution
A communication control device that acquires and determines positional relationships among wireless communication devices to select and notify operation parameters, including radio access technology, frequency bands, duplex modes, and transmission time intervals, to facilitate coexistence among diverse systems and carriers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If secondary usage of frequencies is implemented to alleviate frequency resource shortage, then frequency resource utilization efficiency is improved, but interference between different systems and carriers increases
Solution Approach 1:
The patent introduces a communication control device as an intermediary that manages and coordinates communication between primary and secondary systems. This mediator acquires information about different carriers and RATs, determines positional relationships, and selects appropriate operation parameters to enable coexistence while minimizing interference.
Solution Approach 2:
The patent changes operational parameters such as frequency bands, duplex modes, and transmission time intervals based on the determined positional relationships between devices. By dynamically adjusting these parameters, the system optimizes frequency resource utilization while reducing interference between different carriers and radio access technologies.
2Adaptability or versatility
If different radio access technologies and carriers are operated simultaneously in secondary usage frequencies, then system versatility and frequency resource utilization are improved, but synchronization difficulty and interference increase
Solution Approach 1:
The communication control device serves as a central coordinator that simplifies the complexity of managing multiple RATs and carriers. It acquires information about network identifiers, radio access technology types, and operational parameters, then determines positional relationships and selects appropriate configurations to enable seamless coexistence.
Solution Approach 2:
The patent segments the management of different carriers and RATs by acquiring information about each separately (network identifier, RAT type, frequency band, duplex mode, transmission time interval) and then determining their positional relationships independently before selecting appropriate operation parameters for each.
3Object-generated harmful factors
If LTE TDD is used in CBRS requiring synchronization between base stations, then co-channel interference is reduced, but adjacent channel interference and synchronization difficulty between different carriers increase
Solution Approach 1:
The patent changes transmission time intervals and duplex modes based on the determined positional relationships between base stations. By adjusting these parameters, the system reduces co-channel interference while managing adjacent channel interference between different carriers operating in CBRS.
Solution Approach 2:
The communication control device acts as a mediator that coordinates synchronization between different carriers. It acquires information about transmission time intervals and duplex modes from different carriers, determines their positional relationships, and selects appropriate parameters to minimize interference while maintaining synchronization.
Data Source
AI summary
[Object] To provide a communication control device, a wireless communication device, a method and a program which are capable of realizing coexistence control using information relating to a duplex mode.[Solution] The communication control device includes: an information acquisition unit configured to acquire information indicating a network to which one or more wireless communication devices belong, radio access technology information, information relating to an operable frequency band, information relating to a geographical location and/or region, information relating to a duplex mode, or information relating to a transmission time interval; a determination unit configured to determine positional relationship among coverages of the wireless communication devices by using the information, and select an operation parameter recommended for each of the wireless communication devices in accordance with the determined positional relationship; and a notification unit configured to notify the wireless communication devices of the selected operation parameters.