MC-OOK Group Wake-Up Signaling with Integrated Main Receiver
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Solution Overview
Problem
User equipment requires a separate receiver to receive a low power wake-up signal (LP WUS) and a main transceiver for normal data processing, leading to inefficiencies in power consumption and operation.
Innovation Solution
A network device sends a wake-up signal carrying indication information to a user equipment group, using multi-carrier on-off keying (MC-OOK) modulation to indicate wake-up behaviors for specific user equipment groups, allowing them to determine whether to wake up based on their group affiliation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If user equipment uses a separate receiver to receive low power wake-up signal and main transceiver for normal data processing, then wake-up signal reception is enabled, but device complexity and power consumption increase
Solution Approach 1:
The patent combines the wake-up signal reception function with the main receiver, eliminating the need for a separate low power wake-up receiver. The main receiver is configured to receive both wake-up signals and normal data, reducing device complexity while maintaining wake-up capability through unified reception architecture
Solution Approach 2:
The main receiver is designed to perform multiple functions: receiving wake-up signals during idle periods and receiving normal data during active periods. This multi-functional design eliminates dedicated hardware for wake-up signal reception, reducing overall device complexity while preserving wake-up functionality
2Productivity
If user equipment activates main receiver upon receiving wake-up signal, then data communication is enabled, but power consumption increases
Solution Approach 1:
The patent implements periodic reception where the main receiver is activated only during specific wake-up signal occasions rather than continuously. The receiver operates in a sleep-activate-sleep cycle, consuming power only when wake-up signals are expected, thereby reducing overall power consumption while maintaining data communication capability when needed
Solution Approach 2:
The system enables user equipment to autonomously determine whether to activate the main receiver based on reception of wake-up signals. The device self-manages its power state transitions, activating communication functions only when wake-up indication is received, optimizing power consumption through intelligent, condition-based activation
3Use of energy by moving object
If user equipment keeps main receiver in sleep mode when no wake-up signal received, then power consumption is reduced, but wake-up response time increases
Solution Approach 1:
The patent configures the main receiver to be in advance ready to receive wake-up signals at predetermined occasions. The receiver maintains a low-power standby state with reception circuits pre-configured, enabling rapid wake-up response when signals are received while consuming minimal power during idle periods between wake-up opportunities
Data Source
AI summary
An information transmission method is performed by a network device, and includes: sending a wake-up signal to a user equipment, wherein the wake-up signal carries indication information, and the indication information indicates a wake-up behavior for a user equipment group, wherein the indication information includes N bits, where N is a positive integer greater than or equal to 1.