Control Plane User Data Interception Path Configuration
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Solution Overview
Problem
The separation of control plane and user plane entities in communication technology leads to a complex structure and increased cost due to excessive data flow between them, particularly when intercepting user data.
Innovation Solution
A method is implemented where the control plane entity configures data path information for the user plane entity to establish a data transmission path, allowing the user plane entity to intercept and report user data directly to the intercepting entity, reducing the data flow and complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the control plane entity reserves data forwarding function to report user data to the intercepting entity, then the user data interception function is achieved, but the control plane entity structure becomes complex and cost increases
Solution Approach 1:
The patent segments the gateway into control plane entity (GW-C) and user plane entity (GW-U), assigning the data forwarding function to the user plane entity while the control plane entity focuses on control functions. This segmentation allows the control plane entity to avoid the complexity of handling user data forwarding while maintaining interception capabilities through the user plane entity.
Solution Approach 2:
The patent extracts the data forwarding function from the control plane entity and places it in the user plane entity. This extraction removes the harmful element (data forwarding complexity) from the control plane entity while preserving the essential interception function through the separated user plane entity.
2Reliability
If the control plane entity handles all interface functions (X1, X2, X3) for interception, then complete interception capability is achieved, but data flow between control plane and user plane increases
Solution Approach 1:
The patent segments the interface functions among different entities: X1 and X2 interfaces are handled by the control plane entity for control and signaling, while the X3 interface for user data reporting is handled by the user plane entity. This segmentation reduces unnecessary data flow between entities while maintaining complete interception capability.
Solution Approach 2:
The user plane entity acts as an intermediary that directly handles user data reporting through the X3 interface to the intercepting entity, eliminating the need for control plane entity to forward user data. This intermediary role reduces data flow between control plane and user plane while preserving interception functionality.
Data Source
AI summary
A method for configuring a path for intercepting user data, a method for intercepting user data, an apparatus, a system, a control plane entity and a user plane entity are provided. The method for configuring the path for intercepting user data comprises: acquiring a target to be intercepted and an intercepting interface address; configuring data path configuration information on a user plane entity GW-U according to the target to be intercepted and the intercepting interface address; sending the data path configuration information to the user plane entity GW-U so that the GW-U establishes a path for data transmission; initiating an establishment of an intercepting connection of an intercepting interface to an intercepting entity based on the intercepting interface address so as to transmit the data of the target to be intercepted.