Inter Network Cell Relationship Mapping for Mobility Optimization
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Solution Overview
Problem
Current wireless device migration techniques between different networks, such as macro and micro cellular networks, are inadequate for optimized traffic distribution and mobility performance, as they require extensive inter-operator collaboration and do not efficiently facilitate handover between networks, especially when a device moves from a licensed to an unlicensed spectrum or vice versa.
Innovation Solution
A method is introduced where a network node designates one or more cells of a second network as neighboring cells to a first network by selecting carriers, transmitting information to wireless devices, and determining neighbor cell relations based on measurement reports, allowing for improved mobility performance and traffic distribution without extensive inter-operator collaboration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current wireless device migration techniques are used between different networks, then inter-operator collaboration is required, but mobility performance and handover efficiency deteriorate due to extensive coordination requirements
Solution Approach 1:
The patent introduces a network node as an intermediary that maintains neighbor cell relation information between different networks. This intermediary stores and manages the mapping relationships between cells of first networks and cells of second networks, allowing wireless devices to obtain neighbor cell information without requiring direct extensive collaboration between operators. The network node acts as a mediator that simplifies the complexity while maintaining reliable mobility performance.
2Speed
If neighbor cell information is obtained through traditional methods, then network integrity is maintained, but handover speed and traffic distribution optimization deteriorate
Solution Approach 1:
The patent implements preliminary action by pre-establishing and storing neighbor cell relation information in a network node before handover is needed. The network node maintains a database of mappings between cells of different networks in advance. When a wireless device needs to perform handover, it can quickly retrieve the pre-stored neighbor cell information, enabling fast handover while maintaining network integrity through the pre-validated neighbor relations.
3Adaptability or versatility
If multiple outdoor macro cellular networks are operated by separate operators, then network diversity is achieved, but cost efficiency deteriorates due to need for separate indoor networks for each operator
Solution Approach 1:
The patent implements universality by creating a shared indoor network infrastructure that can be accessed by multiple outdoor macro cellular networks operated by different operators. The indoor network cells are configured to serve as neighbor cells for multiple different operators' macro networks, allowing a single indoor network deployment to support multiple operators and their respective wireless devices. This multi-functional approach eliminates the need for each operator to deploy separate indoor networks, significantly improving cost efficiency while maintaining network diversity.
Data Source
AI summary
The present disclosure relates to a method, performed in a network node of a first network, for designating one or more cells of a second network as neighbouring cells to the first network. The method comprises selecting a set of carriers employed in the second network and transmitting information for the selected set of carriers to a wireless device served by the first network. Measurement reports are received for respective carriers from the wireless device. The network node determines neighbour cell relations between the first network and one or more cells of the second network based on the received measurement reports.