UE Data Transmission Mode Selection for Signaling Load Reduction
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Solution Overview
Problem
In LTE systems, frequent data transmissions by user equipment (UE) lead to excessive signaling interactions and reduced network efficiency due to the need for repeated establishment and release of RRC connections, causing a heavy signaling load on network devices.
Innovation Solution
A data transmission method for UE in idle or inactive states, where the quantity of bits to be transmitted is determined, and a target transmission mode is selected based on transmission configuration information, allowing data transmission through random access, pre-configured network resources, or transitioning to a connected state, optimizing data transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If RRC connection is established and released for each data transmission, then data transmission can be performed, but signaling load on network device becomes excessively heavy
Solution Approach 1:
The network device pre-configures transmission resources (physical uplink shared channel resources) and transmission configuration information for the UE in advance while the UE is in idle state. This preliminary action eliminates the need for RRC connection establishment before each data transmission, as the UE can directly use the pre-configured resources to transmit data in idle or inactive states, thereby reducing signaling load while maintaining transmission capability
Solution Approach 2:
The patent implements dynamic transmission mode selection based on data characteristics. The UE determines the quantity of bits to be transmitted and selects from multiple transmission modes (random access procedure, pre-configured resources, or connected state transmission) according to the data size and transmission configuration information. This dynamic adaptation optimizes the balance between transmission efficiency and signaling overhead
2Reliability
If RRC connection is established for data transmission, then data can be transmitted reliably, but transmission time is increased due to connection establishment and release
Solution Approach 1:
Transmission resources and configuration parameters are pre-configured for the UE in advance during idle state. When data needs to be transmitted, the UE can immediately use these pre-configured resources without going through the time-consuming RRC connection establishment process, thereby significantly reducing transmission delay while maintaining reliable data transfer through the configured resources
Solution Approach 2:
The UE autonomously determines the quantity of bits to be transmitted and selects the appropriate transmission mode based on pre-configured transmission configuration information, without requiring network device intervention for connection establishment. This self-service mechanism eliminates connection setup time while ensuring reliable transmission through predefined resource allocation
Data Source
AI summary
A data transmission method is provided by embodiments of the present disclosure. When a UE is in an idle state or an inactive state, if data which needs to be transmitted has been generated in the UE, the quantity of bits of the data to be transmitted in the UE is determined; then a target transmission mode corresponding to the quantity of bits is determined based on transmission configuration information; and the data to be transmitted is transmitted based on the target transmission mode; where the target transmission mode includes any one of the following modes: performing data transmission by the UE based on a random access procedure, performing data transmission by the UE based on a transmission resource pre-configured by a network device, or performing data transmission by the UE after transitioning to a connected state.