Cooperative Base Station Resource Allocation for Handover Latency
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Solution Overview
Problem
Current cooperative communication systems lack an effective data scheduling scheme, particularly during handover procedures, which can lead to unnecessary data forwarding and increased latency due to the lack of a concrete data scheduling process suitable for multiple BS cooperation scenarios.
Innovation Solution
The proposed solution involves a method and apparatus for scheduling data in a cooperative communication system by detecting base station identifiers and service flow characteristics to determine available resources, allowing for efficient resource allocation and data transmission among base stations, thereby preventing unnecessary data forwarding and reducing latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data forwarding is performed during handover in cooperative communication system, then service continuity is maintained, but latency increases and system performance deteriorates due to lack of concrete data scheduling process
Solution Approach 1:
The patent applies preliminary action by establishing resource allocation agreements between serving base stations before handover occurs. The BS group manager pre-coordinates available resources and transmission timings among multiple base stations, so that when handover happens, data can be transmitted immediately without forwarding delays. This proactive resource coordination eliminates the latency caused by reactive data forwarding while maintaining service continuity.
2Productivity
If multiple base stations transmit data simultaneously to mobile station, then data transmission efficiency improves, but resource collisions occur due to lack of resource coordination
Solution Approach 1:
The patent implements feedback mechanisms where the BS group manager collects information about available resources from each base station and coordinates resource allocation across the BS group. Each base station reports its resource status to the group manager, which then distributes coordinated resource allocation decisions. This feedback loop enables multiple base stations to transmit data simultaneously to different mobile stations or cooperate on the same mobile station without resource collisions, maintaining high transmission efficiency while ensuring reliable resource management.
Data Source
AI summary
A method for allocating a resource in a serving base station (BS) in a cooperative communication system is provided. The method includes detecting a base station identifier (BSID) of the serving BS and a BSID of each of other serving BSs included in the cooperative communication system; determining an available resource which the serving BS will use and an available resource which each of other serving BSs will use based on the BSID of the serving BS and the BSID of each of the other serving BSs; and transmitting information on the determined available resources to cooperative communication cell member BSs which the serving BS manages.