Muting Management in Multi-Cell Coordination
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The coexistence of centrally controlled and autonomous base stations in wireless networks leads to conflicts due to unpredictable behavior of autonomous stations, causing interference and inefficiencies in multi-cell coordinated scheduling.
Innovation Solution
A unified signaling procedure is implemented to manage interactions between central entities and base stations, allowing nodes to negotiate and prioritize requests, ensuring coordinated scheduling without conflicts by specifying decision-makers based on criteria such as traffic levels or resource types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If autonomous base stations operate independently without centralized control, then device complexity and operational flexibility are reduced, but unpredictable behavior occurs causing interference and scheduling conflicts
Solution Approach 1:
The patent changes the operational parameters of autonomous base stations by introducing dynamic muting patterns and coordination signaling mechanisms. Base stations transition from completely independent operation to parameter-controlled coordination, where muting decisions are made based on negotiated parameters with neighboring stations, resolving the contradiction between operational flexibility and scheduling reliability
Solution Approach 2:
The patent introduces an intermediary coordination mechanism where base stations exchange muting pattern information and negotiate resource allocation. This intermediary signaling process enables autonomous stations to coordinate their operations without centralized control, maintaining operational flexibility while ensuring reliable scheduling through mutual agreement on resource usage
2Reliability
If centrally controlled base stations are used to coordinate transmissions, then interference is reduced and scheduling reliability is improved, but device complexity and network overhead increase
Solution Approach 1:
The patent segments the coordination function from the control function. Instead of requiring fully centralized control, the coordination of muting patterns is distributed among neighboring base stations through pairwise negotiations. This segmentation reduces the burden on central controllers while maintaining reliable scheduling through localized coordination agreements
Solution Approach 2:
The patent implements partial coordination rather than complete centralized control. Base stations engage in coordination only for specific resource blocks and time periods where interference occurs, rather than requiring comprehensive central control over all transmissions. This partial action approach reduces complexity while maintaining reliability where needed
3Productivity
If muting patterns are negotiated between base stations, then resource allocation efficiency is improved and interference is reduced, but signaling overhead and communication time increase
Solution Approach 1:
The patent implements preliminary action by establishing muting patterns in advance based on predicted interference scenarios. Base stations negotiate and agree on muting schedules before actual data transmissions occur, allowing resource allocation to be optimized without incurring negotiation delays during critical transmission periods. This preliminary coordination improves productivity while minimizing time loss
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Systems and techniques for negotiated control of multipoint coordination. A first device (such as a central entity or base station) signals a second device regarding its desire to assert control over, or readiness to accept control by, the second device, with respect to coordinated radio transmission. The negotiation may include, for example, acceptance of control, rejection of control, specification of resources subject to or exempt from control, and priority-based decisions to override or refrain from overriding rejections. Coordinated transmission is then conducted based on the outcome of the negotiation.