Cognitive Pilot Channel Frequency Initialization Reducing System Complexity
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Solution Overview
Problem
The complexity and cost of initializing a cognitive system supported by a cognitive pilot channel are increased due to the use of unique base station IDs and the need for positioning technology, which wastes resources and increases implementation complexity.
Innovation Solution
A method where a base station sends a frequency initialization request to a cognitive pilot channel access point, receives a response with private resource description information, broadcasts cognitive information to a terminal, and decides a work frequency based on the terminal's cognitive information, establishing a link without requiring a unique ID or positioning technology.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If unique base station IDs and positioning technology are used for initializing cognitive system, then the system can accurately identify and locate base stations, but the implementation complexity and costs increase
Solution Approach 1:
The patent extracts the essential function of base station identification from the complex ID and positioning system, retaining only the necessary frequency and cognitive information exchange mechanisms. This removes the burden of unique IDs and GPS positioning while maintaining the core identification capability through frequency-based recognition.
Solution Approach 2:
The patent replaces expensive, permanent infrastructure (unique base station IDs and positioning technology) with simpler, temporary frequency-based identification mechanisms. The cognitive information exchange uses transient frequency assignments rather than permanent unique identifiers, reducing both cost and complexity.
2Reliability
If large unique IDs are used for base stations, then each base station can be uniquely identified across the network, but the system complexity and resource requirements increase
Solution Approach 1:
Instead of assigning unique IDs to base stations and having terminals query them, the patent inverts the approach by having base stations identify themselves through their frequency assignments and cognitive information. The terminal receives and processes broadcasted cognitive information that inherently identifies the base station without requiring large unique IDs.
3Loss of information
If positioning technology is deployed for cognitive system initialization, then base station location information can be obtained, but the system cost and complexity increase
Solution Approach 1:
The patent introduces cognitive information as an intermediary that carries location and identification data without requiring direct positioning technology. The CPC AP acts as a mediator that collects and distributes cognitive information including location data, replacing the need for terminal-based positioning systems with a centralized information distribution mechanism.
Data Source
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AI summary
The present invention discloses a method, an apparatus, and a system for initializing a cognitive system supported by a cognitive pilot channel, where implementation of the method includes: sending a frequency initialization request message to a CPC AP; receiving a frequency initialization response message sent by the CPC AP, where the frequency initialization response message includes CPC private resource description information; broadcasting cognitive information of a base station and description information of an uplink access channel to a terminal over a channel specified in the CPC private resource description information; receiving cognitive information of the terminal over CPC private resources, deciding a work frequency according to the cognitive information of the terminal, and sending the decided work frequency to the terminal; establishing, on the decided work frequency, a link with the terminal. According to this method, that the base station broadcasts an ID to the terminal is avoided, which reduces system implementation complexity; and a positioning technology does not need to be introduced, which reduces the system implementation complexity.