User Equipment Data Duplication Control in Dual Connectivity
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Solution Overview
Problem
In Dual Connectivity scenarios, user equipment faces challenges in determining data duplication operations due to the absence of control information from one network node, leading to incomplete definition of data duplication operations.
Innovation Solution
The user equipment assumes values of bits from the missing network node's control information based on corresponding bits from the available control information, using a predefined mapping relationship to determine data duplication operations, ensuring operations are defined even when only one MAC CE is received.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If control information is received from only one network node in Dual Connectivity scenarios, then the user equipment can process available control information, but the data duplication operation cannot be completely determined due to missing control information from the other network node
Solution Approach 1:
The patent applies the copying principle by creating a virtual copy of the received control information to supplement the missing control information from the other network node. Specifically, when control information is received from only one network node (MN or SN), the UE copies the relevant bits from the received control information and uses them as the missing control information from the other node, enabling complete determination of data duplication operations despite receiving incomplete control information
Solution Approach 2:
The patent applies preliminary action by pre-defining a mapping relationship between control information bits and data duplication operations before actual data transmission. This mapping relationship is established in advance through RRC signaling, allowing the UE to directly determine data duplication operations without needing to receive and process control information from both network nodes simultaneously, thus resolving the information loss issue proactively
2Reliability
If control information from both network nodes is required to define data duplication operations, then complete control information can be obtained, but the system complexity increases and operations cannot be defined when only one MAC CE is received
Solution Approach 1:
The patent applies self-service by enabling the UE to determine data duplication operations autonomously using only the control information received from one network node combined with the pre-defined mapping relationship. The UE does not need to wait for or coordinate with the other network node, as it can independently complete the operation definition by applying the mapping rules to the received control information bits, thus reducing system complexity while maintaining reliability
Solution Approach 2:
The patent applies parameter changes by transforming the control information from a state requiring both MN and SN inputs to a state where only one input is needed. This is achieved by changing the interpretation parameters through the pre-defined mapping relationship, which allows the same data duplication operations to be determined from a single control information source rather than requiring combined information from both network nodes
Data Source
AI summary
A data processing method and a related device are provided. The method comprises: a user equipment receives control information from a first network node; and the user equipment determines a data replication behavior of the user equipment according to the control information of the first network node and a set rule.