Wireless Terminal Wakeup Control with Dynamic Transceiver Modes
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Solution Overview
Problem
Existing wireless communication technologies face challenges in controlling terminals to flexibly select the right working mode for power-saving signals, particularly in RRC connected and idle states, due to the introduction of separate low-power receivers.
Innovation Solution
A method and apparatus that allow terminals to switch between working modes based on receiving predetermined wakeup signals, with control information sent by the access network device to indicate when to use or stop using a second transceiver, and the terminal can request mode changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a separate receiver is introduced for receiving wakeup signals to save power, then power consumption is reduced, but device complexity increases
Solution Approach 1:
The terminal device is divided into two separate receivers: a first receiver that remains active to detect wakeup signals, and a second receiver that can be activated or deactivated based on the detected wakeup signal. This segmentation allows the system to reduce overall power consumption by keeping the second receiver in a low-power state during idle periods while maintaining the capability to quickly transition to an active state when needed.
2Reliability
If the second transceiver is always kept active to ensure immediate response to wakeup signals, then response reliability is improved, but power consumption increases
Solution Approach 1:
The system dynamically adjusts the operating state of the second transceiver based on the detected wakeup signal. When a wakeup signal is detected by the first receiver, the second transceiver transitions from a deactivated or low-power state to an active state. This dynamic state adjustment ensures that the second transceiver is ready to respond reliably when needed while minimizing power consumption during idle periods.
Solution Approach 2:
The first receiver continuously monitors for wakeup signals in advance, preparing the system for potential activation of the second transceiver. This preliminary detection allows the second transceiver to be activated only when necessary, rather than remaining constantly active, thereby balancing response reliability with power consumption efficiency.
3Loss of energy
If the terminal always uses the predetermined working mode with second transceiver activation, then power-saving performance is improved, but adaptability to different scenarios decreases
Solution Approach 1:
The system provides dynamic adaptability by allowing the terminal to flexibly switch between different working modes: a predetermined working mode where the second transceiver is activated upon detecting a wakeup signal, and a non-predetermined working mode where the second transceiver remains deactivated. This dynamic adaptability enables the terminal to optimize power-saving performance in scenarios where the predetermined mode is beneficial, while maintaining versatility to switch to the non-predetermined mode when different operational requirements arise.
Data Source
AI summary
A wireless communication method, performed by a terminal, includes: using or stopping using a predetermined working mode. The predetermined working mode is a working mode that a second transceiver of the terminal is woken up after a first transceiver of the terminal receives a predetermined wakeup signal.