Secure Connectionless Uplink Small Data Transmission
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Solution Overview
Problem
Wireless communication systems face high signaling overhead when devices like machine-type communications (MTC) need to establish a network connection, especially for devices that send small amounts of data infrequently, which is inefficient in terms of power consumption.
Innovation Solution
A method and apparatus for user equipment (UE) to establish a secure connection with a network, negotiate an encryption mechanism without establishing a full radio resource control (RRC) connection, enter an idle mode, and transmit encrypted data packets to the base station (BS) without a full RRC connection, allowing secure connectionless uplink data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a full RRC connection is established for data transmission, then security and reliability are improved, but signaling overhead and power consumption increase significantly
Solution Approach 1:
The patent segments the connection establishment process by separating security negotiation from full RRC connection setup. The UE and network negotiate security parameters (encryption algorithms, keys) in a simplified manner without completing the entire RRC connection procedure, allowing data transmission with reduced signaling overhead while maintaining essential security guarantees
Solution Approach 2:
The patent applies partial action by performing only the necessary security negotiation steps without completing the full RRC connection establishment. The UE establishes security context and negotiates encryption mechanisms partially, sufficient for securing small data transmissions, while avoiding the excessive signaling and power consumption of complete connection setup
2Reliability
If a full RRC connection is established for data transmission, then connection security is improved, but signaling overhead increases
Solution Approach 1:
The patent segments the connection establishment process by separating security negotiation from full RRC connection setup. The UE and network negotiate security parameters (encryption algorithms, keys) in a simplified manner without completing the entire RRC connection procedure, allowing data transmission with reduced signaling overhead while maintaining essential security guarantees
Solution Approach 2:
The patent extracts the essential security negotiation functionality from the complete RRC connection establishment process. By taking out only the necessary security parameter negotiation and encryption mechanism selection steps, the system eliminates redundant signaling procedures while preserving the core security function needed for protecting uplink data transmissions
3Use of energy by moving object
If connection establishment procedures are simplified for small data transmission, then power consumption and signaling overhead are reduced, but security may be compromised
Solution Approach 1:
The patent applies preliminary action by pre-negotiating security parameters and encryption mechanisms before actual data transmission occurs. The UE and network establish security context, agree on encryption algorithms, and exchange necessary security parameters in advance during a simplified connection procedure, ensuring that security is already in place when small data transmissions occur, thus maintaining security while reducing power consumption during actual data sending
Solution Approach 2:
The patent changes security parameters by negotiating and applying appropriate encryption algorithms and security configurations tailored for connectionless small data transmissions. The system adjusts security parameter settings to match the specific requirements of small data scenarios, maintaining adequate security protection while optimizing for lower power consumption and reduced signaling overhead compared to full RRC connection modes
Data Source
AI summary
Certain aspects of the present disclosure generally relate to techniques for secure connectionless uplink transmissions by a wireless device. Such techniques may provide for negotiation of an encryption mechanism as part of the setup for connectionless transmissions and subsequent secure connectionless uplink transmissions.