Terminal Receiver Wake-Up Control With Reduced WUS Overhead
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Solution Overview
Problem
Existing wireless communication systems face challenges in optimizing the mechanism for turning on the main receiver of a terminal device using a Wake Up Signal (WUS), leading to increased resource overhead and wake-up delays.
Innovation Solution
Implementing a method where the terminal device autonomously turns on its main receiver based on timers, uplink transmission requirements, or downlink reception requirements, reducing reliance on network device-controlled WUS wake-ups.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the terminal device uses a Wake Up Receiver (WUR) to monitor Wake Up Signals (WUS) for turning on the main receiver, then power consumption is reduced, but resource overhead and wake-up delay increase
Solution Approach 1:
The terminal device performs preliminary actions by autonomously turning on the main receiver based on local conditions (timer expiration, uplink transmission requirements, downlink reception requirements) before actually needing to receive downlink information. This eliminates the wake-up delay associated with network-device-controlled WUS while maintaining power savings through the WUR.
Solution Approach 2:
The terminal device serves itself by making autonomous decisions about when to activate the main receiver based on its own state and requirements. The WUR monitors WUS but the decision to activate the main receiver is made locally by the terminal device itself, not controlled by the network device, thereby reducing wake-up delay and resource overhead.
2Use of energy by moving object
If the network device controls the wake-up signal to turn on the main receiver, then power saving is achieved, but resource overhead increases
Solution Approach 1:
The patent extracts the wake-up decision-making function from the network device and assigns it to the terminal device. The WUR continues to monitor WUS for power saving, but the autonomous activation of the main receiver based on terminal device conditions removes the need for continuous network device control, thereby reducing resource overhead.
Solution Approach 2:
The terminal device performs self-service by autonomously determining when to activate the main receiver based on its own state (timer, uplink requirements, downlink requirements). This eliminates the need for the network device to continuously manage and control the wake-up process, reducing the resource overhead associated with network-device-controlled WUS.
Data Source
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AI summary
Provided are a wireless communication method, a terminal device, and a network device, which are beneficial for reducing resource overhead and wake up delay caused when a network device wakes up a main receiver of a terminal device by means of a wake up signal. The method comprises: in a first communication state, receiving, by a terminal device, downlink information according to first information by using a main receiver of the terminal device, wherein, in the first communication state, a wake up receiver of the terminal device detects a wake up signal (WUS) used for waking up the main receiver of the terminal device, and the first information comprises at least one of the following: a timer, an uplink transmission demand of the terminal device, and a downlink receiving demand of the terminal device.