Radio Clock Synchronization Feedback for Fronthaul Accuracy Control
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Solution Overview
Problem
In a front-haul transport network where the radio device controller is not directly connected to the radio device, it cannot determine the clock synchronization accuracy, hindering its ability to manage services requiring collaboration between radio devices.
Innovation Solution
The radio device provides clock synchronization information to the controller, including identities of the clock source and upper-level network devices, allowing the controller to calculate synchronization accuracy through communication channel quantities and preset values, ensuring accurate management of services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the radio device controller is not directly connected to the radio device, then the network topology flexibility is improved, but the clock synchronization accuracy determination capability deteriorates
Solution Approach 1:
The patent introduces an intermediary mechanism where the radio device obtains clock synchronization information from the clock source and forwards it to the radio device controller. This allows the controller to indirectly determine synchronization accuracy without direct connection, resolving the contradiction between topology flexibility and measurement capability.
Solution Approach 2:
The patent implements a feedback mechanism where the radio device reports clock synchronization information back to the controller. The controller uses this feedback information to determine the synchronization accuracy between radio devices, enabling accurate measurement even through intermediate connections.
2Ease of operation
If the radio device controller obtains clock synchronization information from the radio device, then the service management capability is improved, but the information transmission complexity increases
Solution Approach 1:
The patent makes the radio device multi-functional by having it perform both radio communication functions and clock synchronization information collection functions. The same device that handles radio signals also gathers and forwards synchronization data, reducing overall system complexity while maintaining service management capability.
Solution Approach 2:
The patent merges the clock synchronization information collection function into the existing radio device structure. By combining these functions in one device, the patent avoids adding separate dedicated components, thus improving service management without proportionally increasing system complexity.
Data Source
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AI summary
This application discloses a clock synchronization information obtaining (or providing) method and a communication apparatus, which are applied to a communication network between a radio device controller and a radio device. The radio device can provide, based on clock synchronization information, a radio controller with clock synchronization accuracy of the radio device relative to a clock source, and the radio device controller can determine, based on the clock synchronization information, clock synchronization accuracy (that is, first clock synchronization accuracy) of the radio device relative to the radio device controller. Therefore, this helps the radio device controller manage the radio device based on the first clock synchronization accuracy.