Management Node Window Configuration for Cross-Vendor Fronthaul
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Solution Overview
Problem
The functions that a network management system (NMS) should perform in delay management of the fronthaul (FH) between O-DU/O-RU provided by different vendors/operators are not clearly defined, necessitating clarification for appropriate delay management.
Innovation Solution
A communication device with an acquisition unit to acquire delay profiles and parameters, a control unit to determine and configure Reception and Transmission windows, and a notification unit to notify these parameters to base stations, ensuring effective FH delay management even when O-DU/O-RU are provided by different vendors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If O-DU and O-RU are provided by different vendors/operators to promote openness and interoperability, then adaptability and versatility are improved, but delay management complexity increases due to lack of clear NMS function definitions
Solution Approach 1:
The patent introduces a Network Management System (NMS) as an intermediary that mediates between multiple base stations from different vendors. The NMS acquires delay profiles from each base station, determines appropriate window parameters based on these profiles and fronthaul delay parameters, and notifies the base stations of the determined parameters. This intermediary approach standardizes the management interface while allowing vendor diversity, thereby resolving the contradiction between adaptability and management complexity.
2Measurement precision
If strict timing accuracy is required for FH delay management, then measurement precision is improved, but device complexity increases due to the need for precise window configuration
Solution Approach 1:
The patent implements preliminary action by having the NMS acquire delay profiles from base stations in advance and determine window parameters before actual fronthaul operations begin. The NMS calculates appropriate Transmission window and Reception window parameters based on the acquired delay profiles and fronthaul delay parameters, then notifies the base stations of these pre-determined parameters. This preliminary configuration ensures strict timing accuracy is achieved while reducing operational complexity during actual fronthaul management.
Data Source
AI summary
A communication device constitutes a management node that manages at least one of a first base station and a second base station provided on fronthaul. The communication device includes an acquisition unit that acquires a delay profile of the second base station, a control unit that determines a window parameter used to specify at least one of a Reception window and a Transmission window used in the first base station based on the delay profile of the second base station and a delay parameter defined by the fronthaul, and a notification unit that notifies the first base station of the window parameter.