Relay Base Station CoMP Mode Selection Based on Backhaul Load
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Solution Overview
Problem
The implementation of Coordinated Multipoint (CoMP) services in relay base stations increases the load on backhaul links, which can be inefficient due to the reliance on wireless backhaul connections, particularly in scenarios where dedicated links are not available.
Innovation Solution
A method and system for dynamically selecting a CoMP mode for a relay base station based on the load indication of its communication link with the donor base station, allowing the relay base station to adjust its CoMP mode in response to varying link loads, thereby optimizing wireless service delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If Coordinated Multipoint (CoMP) services are implemented in relay base stations, then service quality at cell edges is improved, but the load on backhaul links increases
Solution Approach 1:
The relay base station dynamically selects CoMP modes based on real-time backhaul link load conditions. When load is high, less demanding CoMP modes are selected; when load is low, more intensive CoMP modes can be used to improve service quality. This dynamic adaptation resolves the contradiction by making the system flexible rather than static.
Solution Approach 2:
The system changes operational parameters (CoMP mode selection) in response to changing backhaul link load conditions. By monitoring link load and adjusting CoMP mode accordingly, the system optimizes the balance between service quality improvement and backhaul resource consumption.
2Adaptability or versatility
If relay base stations use wireless backhaul connections, then deployment flexibility is improved, but link load efficiency deteriorates
Solution Approach 1:
The relay base station implements dynamic CoMP mode selection that adapts to current backhaul link conditions. This allows the system to maintain the deployment flexibility of wireless backhaul while optimizing link utilization efficiency by adjusting CoMP operations based on real-time load measurements.
Solution Approach 2:
The system monitors backhaul link load conditions and uses this feedback to adjust CoMP mode selection. This closed-loop control ensures that wireless backhaul resources are used efficiently while maintaining the deployment advantages of wireless connectivity.
Data Source
AI summary
Disclosed herein are methods and systems for selection of a coordinated multipoint (CoMP) mode for a relay base station, based on traffic load being experienced between the relay WCD and donor base station that provide the relay tunnel used by the relay base station for backhaul communication. An exemplary method involves the relay base station: (i) determining a load indication for a communication link between a relay wireless communication device (WCD) and a donor base station, (ii) using the load indication for the communication interface between the relay WCD and the donor base station as a basis for selecting a CoMP mode from a plurality of available CoMP modes; and (iii) providing wireless service in at least one coverage area according to the selected CoMP mode.