Wake-Up Signal Grouping for Low-Power Wireless Receiver Monitoring
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing power consumption across diverse application scenarios, necessitating a unified solution to reduce power consumption and hardware complexity while optimizing receiver wake-up processes.
Innovation Solution
A method involving the use of wake-up signals to selectively wake up receivers in user equipment or network devices, where the number and configuration of these signals are determined by information blocks to optimize power consumption and reduce false wake-ups.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single wake-up signal is used to wake up the receiver, then the system complexity is reduced, but the probability of false wake-up increases
Solution Approach 1:
The patent divides the wake-up signal monitoring into multiple independent occasions (first occasion, second occasion, etc.) where different wake-up signals are monitored. Each occasion can independently determine whether to wake up the receiver, thereby segmenting the single wake-up decision into multiple smaller decisions that collectively reduce false wake-up probability while maintaining manageable system complexity.
2Reliability
If multiple wake-up signals are monitored simultaneously, then the probability of false wake-up is reduced, but the power consumption increases
Solution Approach 1:
The patent implements periodic wake-up signal monitoring where the receiver alternates between active monitoring periods and sleep periods. The monitoring is performed in discrete occasions rather than continuously, allowing the receiver to consume less power overall while still maintaining reliable detection of wake-up signals through the periodic sampling approach.
Solution Approach 2:
The patent uses preliminary wake-up signals to trigger the receiver before the actual data transmission begins. This preliminary action allows the receiver to be activated in advance with lower power requirements, then remain active only long enough to receive the actual data, thereby reducing total power consumption compared to keeping the receiver continuously active.
3Reliability
If the receiver is kept continuously active to ensure reliable communication, then the communication reliability is improved, but the power consumption increases
Solution Approach 1:
The patent employs preliminary wake-up signals that are transmitted before the actual communication data. These wake-up signals trigger the receiver to activate in advance, ensuring that the receiver is ready and reliable when the actual data arrives, while avoiding the need to keep the receiver continuously active, thereby reducing power consumption.
Solution Approach 2:
The wake-up signal acts as an intermediary between the transmitter and the receiver. It mediates the transition of the receiver from sleep mode to active mode, ensuring reliable communication activation without requiring continuous receiver operation, thus balancing communication reliability with power consumption efficiency.
Data Source
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AI summary
Disclosed in the present application are a method used in a node for wireless communication and an apparatus. The method comprises: a node receives a first information block; and the node monitors W1 wake-up signals and determines whether to monitor in a first occasion a first signaling, W1 being a positive integer greater than 1, the first information block being used for determining a configuration parameter value of at least one wake-up signal among the W1 wake-up signals, and an identifier of a first node being used for determining the first occasion, wherein any one of the W1 wake-up signals carries at least one device group, any one device group carried by any one of the W1 wake-up signals comprises at least one device, and the number of wake-up signals that carry device groups comprising the first node among the W1 wake-up signals is used for determining whether to monitor in the first occasion the first signaling. The present application saves power.