Dual Mode Access Point Internal Information Exchange
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Solution Overview
Problem
In dual mode femtocell networks, there is a delay in exchanging information elements such as Physical Cell Identifier (PCI), Primary Scrambling Code (PSC), and carrier frequency between base station modules, leading to potential handover failures and increased energy consumption due to unnecessary signaling and traffic in the core network.
Innovation Solution
A dual mode access point with internal and external mechanisms for transferring information elements between base station modules, using a Self Organizing Network (SON) Transfer protocol, and a shared transfer memory for storing and retrieving configuration and parameter information, such as PCI, PSC, carrier frequency, and dynamic parameters, to ensure timely updates and reduce reliance on external signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If information elements are exchanged through external core network signaling, then base station modules can obtain required data, but signaling delay and energy consumption increase
Solution Approach 1:
The patent merges the base station modules into a single dual mode access point with shared memory, allowing direct internal information exchange. This combines previously separate modules (HNB and HeNB) into one unified system where information elements like PCI, PSC, and carrier frequency can be transferred immediately through shared memory without external core network signaling.
Solution Approach 2:
The patent introduces shared memory as an intermediary storage mechanism between base station modules. This intermediary allows modules to store and retrieve information elements locally, eliminating the need for delayed external signaling while ensuring accurate data transfer for handover operations.
2Reliability
If information elements are exchanged through external core network signaling, then data can be transferred between modules, but energy consumption increases due to unnecessary signaling
Solution Approach 1:
By merging base station modules into one unified access point with shared memory, the patent eliminates redundant external signaling paths. Information elements are exchanged directly through internal memory access, reducing energy consumption while maintaining data accuracy through shared storage.
Solution Approach 2:
The dual mode access point serves itself by providing internal information exchange capabilities through shared memory. Instead of relying on external core network signaling for every information element transfer, the system uses its own internal resources (shared memory) to accomplish data exchange, reducing external dependency and energy consumption.
Data Source
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AI summary
A communication system is described in which transferring means are configured for transferring at least one information element from a first base station to a second base station. In one embodiment, the information element is sent internally to a communication apparatus comprising the first and second base stations or externally via a communication node external to the apparatus. In one embodiment, the information element is sent between the two base stations via a communication node of a communication network.