Network Device Inter-Frequency Signal Quality Determination
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Solution Overview
Problem
Existing communication technologies require terminal devices to perform inter-frequency and inter-RAT measurements, which lead to reduced service throughputs and prolonged carrier selection times due to the need for measurement gaps and longer measurement times.
Innovation Solution
A method where a network device obtains signal quality information of an intra-frequency from terminal devices and uses a stored mapping relationship to determine signal quality information of an inter-frequency, allowing the network device to select a carrier for the terminal devices without requiring the terminal devices to perform inter-frequency or inter-RAT measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If terminal devices perform inter-frequency measurement or inter-RAT measurement, then the network device can obtain signal quality information of different frequencies for carrier selection, but the service throughputs of terminal devices are reduced due to measurement gaps
Solution Approach 1:
The patent uses the intra-frequency signal quality information as a proxy or copy to represent inter-frequency signal quality information. Instead of directly measuring inter-frequency signals, the system measures intra-frequency signals and uses the obtained information to infer inter-frequency conditions, thereby avoiding measurement gaps and maintaining service throughput.
Solution Approach 2:
The patent makes intra-frequency measurement serve multiple purposes: it not only provides intra-frequency signal quality information for same-frequency cell selection but also serves as a basis for determining inter-frequency signal quality information. This multi-functional approach eliminates the need for separate inter-frequency measurement processes.
2Loss of information
If terminal devices perform inter-frequency measurement or inter-RAT measurement, then the network device can obtain signal quality information of different frequencies, but the time length required for carrier selection is prolonged
Solution Approach 1:
The patent performs intra-frequency measurement in advance, which can be done continuously without interrupting service. The obtained signal quality information is then used to determine inter-frequency conditions, eliminating the need for time-consuming inter-frequency measurement gaps and significantly reducing carrier selection time.
3Loss of information
If terminal devices perform inter-frequency measurement or inter-RAT measurement, then the network device can obtain signal quality information of different frequencies, but overheads of measurement are increased
Solution Approach 1:
The patent makes the intra-frequency measurement process serve dual purposes: obtaining intra-frequency signal quality information and inferring inter-frequency signal quality information. This eliminates the need for separate inter-frequency measurement procedures, reducing measurement overhead and simplifying the overall measurement process.
Data Source
AI summary
This application provides a method and an apparatus for determining signal quality information of a frequency. On example method includes obtaining, by a network device, signal quality information, of a first frequency, from a plurality of terminal devices, wherein the first frequency is a frequency used by a serving cell accessed by the plurality of terminal devices; and determining, by the network device, signal quality information of a second frequency based on the signal quality information of the first frequency and a stored first mapping relationship, wherein the second frequency is different from the first frequency, and the first mapping relationship is a mapping relationship between the signal quality information of the first frequency and the signal quality information of the second frequency.