Base Station Handover Using Network Slice Resource Status
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Solution Overview
Problem
In wireless communications, determining a base station that can serve required network slices for a wireless device during a handover procedure is challenging due to difficulties in network slicing.
Innovation Solution
A first base station receives resource status information from one or more second base stations to determine whether a handover, multi-connectivity activation, or modification should be performed for serving one or more network slices for a wireless device, using this information to identify suitable base stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If network slicing is implemented for different device or service types, then service differentiation and customization are improved, but determining a base station that can serve required network slices becomes more difficult
Solution Approach 1:
The source base station receives resource status information from target base stations and uses this feedback to make informed handover decisions. The target base station provides information about its network slice support capability, which the source base station uses to determine the appropriate target for handover, resolving the difficulty of selecting a base station that can serve required network slices.
Solution Approach 2:
The target base station pre-provides resource status information indicating which network slices it can support before the handover decision is made. This preliminary information allows the source base station to determine the appropriate target base station in advance, eliminating the difficulty of base station selection during the handover process.
2Measurement precision
If resource status information is exchanged between base stations, then handover decision accuracy is improved, but signaling overhead and system complexity increase
Solution Approach 1:
The patent extracts only the essential resource status information related to network slice support capability from the target base station, rather than exchanging all possible operational parameters. This selective extraction maintains handover decision accuracy while minimizing signaling overhead and system complexity.
3Reliability
If handover decisions are based on comprehensive resource status information, then service continuity is improved, but information processing time and computational load increase
Solution Approach 1:
The patent extracts and processes only the critical resource status information related to network slice support capability, rather than analyzing all available base station parameters. This selective approach ensures service continuity by identifying suitable target base stations while minimizing information processing time and computational load.
Data Source
AI summary
Systems, apparatuses, and methods are described for wireless communications. A first base station may send, to a second base station, a request for a resource status. The first base station may receive, from the second base station, information regarding available capacity associated with a network slice.