CBS-DBS Resource Allocation for DRB QoS in Separated Networks
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Solution Overview
Problem
Current technologies lack an effective method for configuring resources for protocol entities in a Data Base Station (DBS) according to Quality of Service (QoS) requirements of a Data Radio Bearer (DRB) in data/signaling separation networks, which is crucial for the effective operation of these networks.
Innovation Solution
A method where a Control Base Station (CBS) determines resource configuration information and sends a resource allocation indication to a DBS, allowing the DBS to allocate resources to a DRB based on QoS parameters, even without a control plane function, enabling interaction between the CBS, DBS, and User Equipment (UE).
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If protocol entities at Layer 2 are allocated to DBS in data/signaling separation network, then network capacity is improved and signaling overhead is reduced, but resource configuration for protocol entities in DBS cannot be performed according to QoS requirements
Solution Approach 1:
The patent segments the base station into two independent parts: CBS (Control Base Station) and DBS (Data Base Station). The CBS handles control plane functions including RRC connection management and resource configuration, while the DBS handles user plane functions including data transmission and protocol entity operations. This segmentation allows the DBS to focus on data processing without control plane overhead, improving network capacity while the CBS provides centralized resource configuration according to QoS requirements.
Solution Approach 2:
The CBS acts as an intermediary between the core network and the DBS. It receives resource configuration instructions from the core network, determines appropriate resource allocation based on QoS parameters, and then sends resource allocation indications to the DBS. This intermediary role enables the DBS to allocate resources according to QoS requirements without having control plane functionality, resolving the contradiction between operational simplicity and configuration capability.
2Loss of information
If DBS handles user plane transmission without control plane function, then signaling overhead is reduced, but DBS cannot independently configure resources according to QoS parameters
Solution Approach 1:
The patent divides the base station into CBS and DBS with clear functional separation. The DBS handles only user plane transmission, reducing control signaling overhead, while the CBS handles control plane functions including QoS-based resource configuration. This segmentation maintains low signaling overhead while preserving resource allocation flexibility through the CBS's control plane capabilities.
Solution Approach 2:
The system implements a feedback mechanism where the DBS sends resource allocation status and QoS requirement information to the CBS, and the CBS adjusts resource allocation accordingly. This feedback loop enables the DBS to operate with reduced signaling overhead while maintaining adaptability through continuous QoS-based resource configuration by the CBS.
Data Source
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AI summary
The present invention relates to the field of mobile communications technologies, and discloses a method for configuring a resource to a DRB, and an apparatus. The method is specifically: first determining, by a first CBS, resource configuration information used by a first DBS to separately allocate a resource to at least one DRB of UE; and then, sending, to the first DBS, a first resource allocation indication that carries the determined resource configuration information, so that the first DBS separately allocates the resource to the at least one DRB of the UE according to the resource configuration information. In this way, even if the first DBS does not have a function of a control plane, the first DBS can still configure a resource for at least one protocol entity in the first DBS according to the resource configuration information carried in the received first resource allocation indication sent by the first CBS, thereby ensuring effective running of a data/signaling separation network, and effectively implementing resource configuration for a protocol entity in a DBS according to a QoS requirement of a DRB.