Base Station Interference Reduction Control for Full-Duplex Systems
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Solution Overview
Problem
Communication systems face interference issues between communication devices due to overlapping resources, particularly in full-duplex operations, which can lead to reduced performance and potential data reception failures.
Innovation Solution
A base station apparatus and communication device method that determine the need for inter-device interference reduction mechanisms based on location, channel conditions, quality of service, and scheduling parameters, using control information to trigger interference reduction procedures, including announcement signals and flexible scheduling, to minimize interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If full-duplex operations are implemented to improve communication efficiency, then data transmission rate is improved, but inter-device interference increases
Solution Approach 1:
The base station determines whether inter-device interference reduction mechanisms are needed before scheduling transmissions, and transmits control information to communication devices in advance. This allows devices to prepare for potential interference scenarios by announcing their transmission intentions or adjusting their behavior before actual interference occurs, thereby enabling full-duplex operations while mitigating interference risks.
Solution Approach 2:
The base station acts as an intermediary that coordinates between multiple communication devices. It transmits control information to devices, guiding them on when and how to reduce interference. This intermediary control enables devices to operate in full-duplex mode while the base station manages the overall interference situation through centralized scheduling and control.
2Reliability
If interference reduction mechanisms are triggered to reduce inter-device interference, then communication reliability is improved, but system complexity increases
Solution Approach 1:
Communication devices autonomously determine whether to transmit announcement signals based on control information received from the base station. Each device independently assesses its own transmission needs and interference potential, then takes appropriate action without requiring complex coordination with every other device. This self-service approach improves reliability while limiting the growth of system complexity.
Solution Approach 2:
The system dynamically changes operational parameters based on channel conditions and traffic requirements. The base station adjusts control information transmission, and devices adjust their announcement signal transmission or scheduling behavior according to determined parameters. This parameter-based control allows the system to adapt to varying conditions while maintaining manageable complexity through standardized control mechanisms.
3Reliability
If announcement signals are transmitted to reduce interference, then data reception reliability is improved, but transmission overhead increases
Solution Approach 1:
Not all communication devices transmit announcement signals at all times. Instead, devices transmit announcement signals partially - only when control information from the base station indicates that inter-device interference reduction is needed and when specific conditions are met. This partial action approach improves data reception reliability for critical transmissions while avoiding the excessive overhead of universal, continuous announcement signal transmission.
Data Source
AI summary
An apparatus in a base station and comprising at least one processor and at least one memory including computer code for one or more programs, the at least one memory and the computer code configured, with the at least one processor, to cause the apparatus at least to: cause scheduling information to be transmitted to a plurality of communication devices and control information to be transmitted to at least one communication device of the plurality of communication devices, said control information controlling in the respective communication device at least one of triggering an inter communication device interference reduction mechanism and parameters of the inter communication device interference reduction mechanism.