Terminal Wake-Up Signaling for Energy-Saving Wireless Reception
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Solution Overview
Problem
Existing wireless communication systems face challenges in flexibly controlling power consumption of terminal devices, particularly in managing energy-saving reception and transmission states, leading to inefficiencies and potential communication congestion.
Innovation Solution
A method and device that utilize a secondary receiver in terminal devices to detect wake-up signals based on low-complexity modulations like ASK, OOK, FSK, or PSK, allowing the network device to send signals on varying transmission resources to determine when terminal devices should exit energy-saving states, thereby optimizing power consumption and reducing congestion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If terminal devices continuously monitor transmission resources to ensure reliable communication, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements discontinuous reception where terminal devices alternate between active monitoring periods and sleep periods. The network device sends wake-up signals at periodic intervals to activate terminal devices only when data transmission is required, transforming continuous monitoring into periodic action to reduce power consumption while maintaining communication reliability.
Solution Approach 2:
The patent introduces wake-up signals as an intermediary mechanism between the network device and terminal devices. These signals act as mediators that trigger terminal devices to transition from sleep state to active state, enabling reliable communication only when necessary without requiring continuous monitoring.
2Use of energy by moving object
If terminal devices enter energy-saving states to reduce power consumption, then power consumption is reduced, but response time to receive data increases
Solution Approach 1:
The network device performs preliminary action by sending wake-up signals before actual data transmission. This allows terminal devices to be activated in advance with sufficient notice, reducing the effective response time delay while still benefiting from the power savings of entering energy-saving states during idle periods.
3Area of stationary object
If the network device sends wake-up signals on all transmission resources to ensure all terminal devices are reached, then coverage is improved, but network congestion increases
Solution Approach 1:
The patent applies local quality by configuring different wake-up signal monitoring behaviors for different terminal devices based on their specific conditions. Terminal devices monitor wake-up signals on specific transmission resources according to their configured patterns, allowing the network to achieve broad coverage while distributing the signaling load locally rather than uniformly across all resources.
Solution Approach 2:
The patent segments the wake-up signal transmission by dividing transmission resources into different sets and configuring terminal devices to monitor specific segments. This segmentation reduces the number of wake-up signals each terminal device needs to process while maintaining comprehensive coverage across the network.
Data Source
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AI summary
Embodiments of the present application provide a processing method and apparatus, a terminal device, and a network device. The method comprises: a terminal device receives a first signal, the first signal being used for determining whether to exit an energy-saving receiving and/or transmitting state.