Priority-Based Interference Control in Wireless Cells
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communication systems face challenges in efficiently coordinating interference between cells, particularly due to the need for exchanging detailed scheduling plans between base stations, which is time-consuming and not always reflective of real-time transmission situations.
Innovation Solution
The method involves dividing resources into sets with priority assignments for each cell, allowing cells to determine usage based on sensing operations that detect transmissions from adjacent cells, thereby minimizing the need for explicit scheduling plan exchanges and enabling adaptive resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cells exchange detailed scheduling plans between base stations to coordinate interference, then interference coordination is achieved, but the time consumption increases and real-time transmission situations are not always reflected
Solution Approach 1:
The patent extracts only the essential information needed for interference coordination - specifically, resource set usage status and priority levels - rather than exchanging complete scheduling plans. This selective extraction reduces information exchange time while maintaining coordination effectiveness, as base stations only need to know which resource sets are occupied and by whom to make scheduling decisions.
Solution Approach 2:
The patent implements preliminary action by pre-configuring priority relationships between resource sets at different base stations before interference situations occur. This pre-established priority framework allows base stations to autonomously resolve interference without time-consuming real-time negotiations, as the coordination rules are already in place and can be applied immediately when conflicts arise.
2Reliability
If cells exchange detailed scheduling plans between base stations, then interference coordination is achieved, but the complexity of the system increases
Solution Approach 1:
The patent simplifies the system by extracting only the critical elements needed for interference coordination - resource set identifiers, usage status, and priority levels - eliminating the need for complex complete scheduling plan exchanges. This reduction in information scope directly decreases system complexity while preserving coordination functionality.
Solution Approach 2:
The patent changes the parameters being exchanged from detailed scheduling information to simplified priority and status indicators. By transforming the nature of the exchanged data from comprehensive scheduling plans to essential coordination parameters, the system complexity is reduced while maintaining the ability to coordinate interference effectively.
3Productivity
If cells use sensing operations to detect transmissions from adjacent cells, then resource utilization efficiency is improved, but the need for information exchange is minimized
Solution Approach 1:
The patent implements self-service by enabling base stations to autonomously detect resource usage through sensing operations on their own, rather than relying on information provided by neighboring base stations. This self-detection capability allows each base station to independently determine which resource sets are occupied, improving resource utilization efficiency while eliminating the need for information exchange about scheduling plans.
Data Source
Figure 1
Figure 2(A)~2(B)
Figure 3
AI summary
Disclosed is a method for a first cell transmitting and receiving a signal in a particular resource set for which a priority is given with respect to a second cell in a multi-cell communication system. Particularly, the method comprises the steps of: determining whether or not a second cell uses a particular resource set in a first transmission time interval (TTI) among a plurality of first TTIs, which correspond to a first cell, comprised in a second TTI corresponding to the second cell; and, if it is determined that the second cell does not use the particular resources in the first TTI, transmitting and receiving a signal in remaining TTIs, among the plurality of first TTIs, other than the first TTI.