Wireless Terminal Dual-Transceiver Wake-Up for Low-Power DRX
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Solution Overview
Problem
Existing wireless communication technologies face challenges in efficiently managing power consumption and data monitoring in RRC idle states due to the need for continuous detection of power-saving signals, which requires the modem to be frequently activated, leading to increased power usage.
Innovation Solution
Implementing a dual transceiver system where a low-power wake-up receiver wakes up a main radio receiver based on a wakeup signal, allowing data monitoring to be performed according to different DRX groups, thereby optimizing power usage and adaptability across various communication scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the modem is frequently activated to detect power-saving signals, then the terminal can maintain connection state, but power consumption increases
Solution Approach 1:
The terminal is divided into two independent transceivers: a first transceiver for receiving wake-up signals and a second transceiver for data monitoring. This segmentation allows the low-power first transceiver to handle wake-up detection while the main second transceiver remains dormant until needed, resolving the contradiction between maintaining connection state and reducing power consumption.
Solution Approach 2:
The first transceiver acts as an intermediary between the network and the main second transceiver. It receives wake-up signals from the network and selectively activates the second transceiver only when necessary, thereby maintaining connection state reliability while minimizing power consumption by keeping the main transceiver dormant most of the time.
2Device complexity
If a single transceiver is used for both wake-up signal detection and data monitoring, then device complexity is reduced, but power saving capability deteriorates
Solution Approach 1:
The transceiver function is segmented into two independent units: a first transceiver dedicated to wake-up signal detection and a second transceiver dedicated to data monitoring. This segmentation enables independent power management where the first transceiver can operate at lower power while the second transceiver remains dormant, significantly improving power saving capability despite the increased structural complexity.
Solution Approach 2:
Instead of using a single transceiver that must perform all functions (excessive action), the system uses two transceivers where only the necessary functions are performed by each (partial action). The first transceiver performs only wake-up detection with minimal power consumption, while the second transceiver performs data monitoring only when activated, optimizing the balance between functionality and power consumption.
3Device complexity
If DRX parameters are not considered in transceiver activation, then control complexity is reduced, but power consumption optimization deteriorates
Solution Approach 1:
The system dynamically adjusts the activation state of the second transceiver based on DRX parameters received from the network. The first transceiver monitors wake-up signals and uses DRX timing information to determine when to activate the second transceiver for data monitoring. This dynamic control optimizes power consumption by activating the main transceiver only when data transmission is expected, while the control mechanism remains relatively simple by leveraging existing DRX parameter frameworks.
Data Source
AI summary
Provided in the embodiments of the present disclosure is a wireless communication method, the method is performed by a terminal, and the method includes: waking up a second type transceiver through a first type transceiver in response to the first type transceiver receiving a wakeup signal; wherein the second type transceiver comprises at least one of: a first transceiver, configured to perform data monitoring based on a discontinuous reception (DRX) parameter of a first DRX group; or a second transceiver, configured to perform data monitoring based on a DRX parameter of a second DRX group.