PDCP Data Duplication Control via MAC CE Protocol Identification
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Solution Overview
Problem
The challenge lies in controlling the data duplication function of a Packet Data Convergence Protocol (PDCP) entity between different versions of MAC Control Element (CE) in a wireless communication system, particularly when both LTE and NR protocols coexist, as existing solutions do not effectively manage the activation or deactivation of data duplication functions across these different network protocols.
Innovation Solution
A method and device that enable a terminal to receive MAC CE messages from a base station, allowing it to control the data duplication function of a PDCP entity, supporting either LTE or NR protocols, by activating or deactivating the CA or DC duplication functions based on the received MAC CE, ensuring compatibility between different network protocols.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If LTE and NR protocols coexist in the wireless communication system, then network coverage and compatibility are improved, but the complexity of controlling data duplication function across different protocol versions increases
Solution Approach 1:
The patent introduces a protocol version identification mechanism as an intermediary to distinguish between LTE and NR protocol versions. The terminal identifies the protocol version through MAC CE format recognition and selects the appropriate control method accordingly, enabling seamless operation across mixed protocol environments without direct complexity between different versions
Solution Approach 2:
The patent changes the control parameter approach by introducing protocol version as a distinguishing parameter. Different MAC CE formats and control methods are applied based on the identified protocol version (LTE or NR), allowing the system to adapt control behavior according to the specific protocol version while maintaining overall system simplicity
2Reliability
If data duplication function is activated for carrier aggregation or dual connectivity, then data transmission reliability is improved, but the risk of control errors between different protocol versions increases
Solution Approach 1:
The protocol version identification mechanism serves as a protective intermediary that prevents control errors by ensuring the terminal uses the correct control method for the specific protocol version. This intermediary layer filters out potential mismatches between control commands and protocol expectations
Solution Approach 2:
The patent implements beforehand cushioning by pre-identifying the protocol version and pre-selecting the appropriate control method before executing data duplication control. This advance preparation prevents control errors from occurring in the first place by ensuring protocol alignment before the critical control operation
Data Source
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AI summary
Disclosed in the present invention are a method and device for controlling a data replication function and a computer storage medium; the method comprises: a terminal receiving Media Access Control-Control Element (MAC CE) sent by a base station, wherein the MAC CE supports a first network protocol; on the basis of the MAC CE, the terminal controlling a data replication function of a Packet Data Convergence Protocol (POCP) entity of the terminal, wherein the PDCP entity supports a second network protocol.