UE UDC Capability Reporting for DRB Configuration
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Solution Overview
Problem
The existing UDC mechanism in LTE systems limits the number of DRBs that can simultaneously use UDC, leading to suboptimal data transmission efficiency and user experience, as it cannot accurately determine the UDC capabilities of UE and configure parameters accordingly.
Innovation Solution
The UE actively reports its UDC capabilities and determines optimal UDC parameters, such as dictionary type and length, based on the data service type, allowing for simultaneous activation of UDC across multiple DRBs, thereby improving data transmission efficiency and user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the existing UDC mechanism limits the number of DRBs that can simultaneously use UDC, then the system complexity is reduced, but the data transmission efficiency deteriorates
Solution Approach 1:
The patent changes the parameter of maximum supported DRBs from a fixed value (2 DRBs) to a configurable value that can be adjusted based on UE capability reporting. The network device receives capability information indicating the maximum number of DRBs the UE can support for UDC, then configures the actual number of simultaneously active UDC DRBs based on this capability, allowing flexible adaptation between system complexity and transmission efficiency.
2Device complexity
If the network device configures UDC parameters without accurate UE capability information, then the configuration process is simplified, but the compression efficiency deteriorates
Solution Approach 1:
The patent implements a feedback mechanism where the UE reports its UDC capability information (including maximum supported DRBs and supported dictionary types/lengths) to the network device. The network device uses this feedback to accurately configure UDC parameters that match the UE's actual capabilities, thereby optimizing compression efficiency while maintaining configuration simplicity.
3Adaptability or versatility
If the UE reports detailed UDC capability information, then the adaptability of UDC configuration is improved, but the signaling overhead increases
Solution Approach 1:
The patent makes the capability reporting mechanism universal by designing it to work across different UE types and scenarios. The UE reports a set of standardized capability parameters (maximum DRBs, dictionary types, dictionary lengths) that can be used by the network device for various UDC configuration scenarios, achieving high adaptability without requiring separate reporting mechanisms for different cases.
Data Source
AI summary
This application relates to a method for reporting UDC information by UE, and a device. The method includes: A terminal device receives request information sent by a network device, where the request information is used to request the terminal device to report first information; and the terminal device sends the first information to the network device, where the first information is used to indicate that the terminal device supports a UDC capability, and indicate a maximum quantity of DRBs that can be simultaneously supported by the terminal device and for which UDC is activated.