Light Connection State for UE Signaling Reduction
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Solution Overview
Problem
Current mobile communication systems face high data load and signaling overhead when UEs periodically transmit small amounts of data, leading to unnecessary data overload and increased power consumption, especially in machine-type communication scenarios.
Innovation Solution
A method and apparatus for efficiently changing the connection state of a UE by introducing a light connection state within the RRC connection and idle states, allowing for reduced signaling through a paging method that controls congestion and transitions without core network signaling, enabling quick state changes and reduced data load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a UE transmits small amounts of data periodically using typical RRC connection state change methods, then data transmission is achieved, but signaling overhead and data load increase significantly
Solution Approach 1:
The patent segments the traditional RRC connection states into three distinct states: RRC idle state, light connection state, and RRC connection state. This segmentation allows UEs to operate in the intermediate light connection state for periodic small data transmissions, avoiding the need to fully transition to RRC connection state. The light connection state maintains minimal radio resources and simplified signaling, thereby reducing data load while preserving essential data transmission capability.
Solution Approach 2:
The patent implements dynamic state transition mechanisms that allow UEs to flexibly move between idle, light connection, and RRC connection states based on traffic conditions. For periodic small data transmissions, UEs dynamically enter the light connection state rather than consistently maintaining full RRC connection, optimizing the balance between data transmission efficiency and signaling overhead reduction.
2Productivity
If a UE frequently changes RRC connection state to transmit small amounts of data, then data transmission is enabled, but power consumption increases
Solution Approach 1:
By introducing the light connection state as an intermediate state between idle and full RRC connection, the patent enables UEs to maintain minimal radio resource monitoring and simplified signaling procedures. This segmentation reduces the power consumption associated with frequent state changes while preserving the ability to transmit small amounts of data periodically.
Solution Approach 2:
The patent optimizes power consumption for periodic data transmissions by allowing UEs to remain in the light connection state during periodic transmission intervals, avoiding the energy-intensive transitions to and from full RRC connection state. The light connection state maintains just enough radio resource activity to support periodic small data transmissions with minimal power expenditure.
3Quantity of substance
If typical RRC connection state change procedures are used for small data transmissions, then data can be transmitted, but signaling overhead becomes excessive
Solution Approach 1:
The patent segments the signaling procedures associated with RRC connection state changes by creating a light connection state that requires minimal signaling. UEs in this state can transmit small amounts of data with simplified signaling procedures, avoiding the extensive signaling overhead required for full RRC connection state transitions. This segmentation effectively decouples small data transmission needs from complex signaling requirements.
Data Source
AI summary
The present disclosure relates to a control plane signaling method and apparatus for reducing signaling due to a change in a UE's state, and more particularly, to a method for efficiently changing a connection state of a UE in a radio network without mobility of the UE or a change in a state transition of the UE in a core network. The method of changing, by a UE, a connection state includes receiving an RRC (radio resource control) connection release message including instruction information for instructing to change a state to a light connection state from a base station, configuring the connection state of the UE to the light connection state based on the instruction information, and transmitting an RRC connection resumption request message to the base station without an access class barring operation, when a state change to an RRC connection state is triggered.