Wireless Terminal DRX Signaling for Cell Discontinuous Communication
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Solution Overview
Problem
Existing wireless communication technologies face challenges in optimizing power consumption and network congestion through efficient discontinuous reception and transmission mechanisms, particularly in managing cell discontinuous communication operations.
Innovation Solution
Implementing cell discontinuous communication indication information to manage cell discontinuous transmission (DTX) and reception (DRX) operations, including timers, active times, and terminal behaviors to optimize power consumption and reduce network congestion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous communication is maintained to ensure reliable data transmission, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements discontinuous reception (DRX) where the terminal periodically wakes up to monitor physical downlink control channels (PDCCH) during designated active times, and remains in sleep mode during inactive periods. This periodic monitoring pattern allows the system to maintain communication reliability by ensuring the terminal checks for incoming data at regular intervals while significantly reducing power consumption by keeping the receiver off during non-active periods.
Solution Approach 2:
The patent introduces dynamic adjustment mechanisms where the network can configure different DRX parameters (such as drx-OnDurationTimer, drx-InactivityTimer, drx-SlotOffset) based on traffic conditions and terminal behavior. The terminal dynamically transitions between active and inactive states based on these configurable parameters, allowing the system to adapt the communication pattern to balance reliability requirements with power saving needs in real-time.
2Use of energy by moving object
If discontinuous reception is implemented to reduce power consumption, then power efficiency is improved, but communication response time increases
Solution Approach 1:
The patent configures DRX parameters in advance through network signaling (RRC configuration) before actual data transmission begins. The terminal is pre-configured with active time patterns, timer values, and monitoring schedules, so when data needs to be transmitted, the terminal is already prepared to wake up at the appropriate times. This preliminary configuration eliminates setup delays and ensures the terminal can respond promptly within the configured active windows.
Solution Approach 2:
The patent allows dynamic modification of DRX parameters to optimize response time. The network can adjust parameters such as drx-OnDurationTimer (duration of active state), drx-InactivityTimer (wait time before entering sleep), and drx-SlotOffset (timing offset for active periods) based on traffic patterns and QoS requirements. By changing these parameters, the system can shorten active window durations or increase wake-up frequency to reduce response time while maintaining power efficiency.
3Productivity
If cell discontinuous communication is used to optimize resource usage, then network congestion is reduced, but device complexity increases
Solution Approach 1:
The patent implements feedback mechanisms where the terminal monitors PDCCH for downlink control information during active times and provides acknowledgments (HARQ-ACK) for received data. The network uses this feedback to determine whether retransmissions are needed and to adjust subsequent scheduling decisions. This feedback loop ensures reliable data transmission during discontinuous communication while allowing the network to optimize resource allocation based on actual channel conditions and terminal responsiveness.
Solution Approach 2:
The patent enables the terminal to autonomously manage its discontinuous communication operations based on pre-configured parameters. The terminal independently determines when to wake up, monitor PDCCH, transition to inactive state, and handle uplink transmissions according to the configured DRX pattern. This self-service capability reduces the need for continuous network control signaling and simplifies the overall system while maintaining efficient resource usage through autonomous terminal behavior.
Data Source
AI summary
A wireless communication method is disclosed. The method comprises: detecting, by a wireless communication terminal from a wireless communication node, cell discontinuous communication indication information for a cell discontinuous communication; and performing, by the wireless communication terminal, the cell discontinuous communication according to the cell discontinuous communication indication information.