Multi-Link Beacon Time Synchronization for Lower Terminal Power
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Solution Overview
Problem
The challenge is to suppress power consumption in wireless terminal apparatuses while maintaining effective communication through multi-link connections.
Innovation Solution
A base station equipped with multiple wireless signal processing units and a link management unit that establishes multi-links, transmitting beacon signals with shared time information to synchronize and manage power states across different channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multi-link connections are established to improve communication effectiveness, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic beacon signal transmission at synchronized time points across multiple links. The base station transmits beacon signals containing shared time information at predetermined intervals, allowing the terminal to synchronize its wake-up schedule and enter power-saving modes between beacon transmissions, thus reducing overall power consumption while maintaining multi-link connectivity
Solution Approach 2:
The patent establishes shared time information in advance that is used to pre-schedule beacon signal transmissions and terminal wake-up times. By predetermined the timing of synchronization events before actual communication occurs, the terminal can plan its active and sleep periods ahead of time, optimizing power usage while ensuring communication reliability
2Stability of the object's composition
If beacon signals are transmitted on each link independently to maintain link synchronization, then link stability is improved, but energy consumption increases
Solution Approach 1:
The patent merges the time synchronization function across multiple links by introducing shared time information that is common to all links. Instead of maintaining independent time references on each link, the base station transmits unified beacon signals containing shared time information that synchronizes all multi-links simultaneously, reducing the total number of synchronization transmissions needed
Solution Approach 2:
The shared time information serves multiple functions across different links simultaneously. A single beacon signal transmission provides synchronization for all multi-links, making the synchronization mechanism universal rather than link-specific. This multi-functional approach maintains link stability while minimizing energy consumption by avoiding redundant transmissions
Data Source
AI summary
A base station of an embodiment includes first and second wireless signal processing units, and a link management unit. The first wireless signal processing unit is configured to transmit and receive a wireless signal using a first channel. The second wireless signal processing unit is configured to transmit and receive a wireless signal using a second channel that is different from the first channel. The link management unit stores shared time information synchronizing multi-links. The link management unit establishes a multi-link with a terminal apparatus using the first and second wireless signal processing units, and causes each of the first and second wireless signal processing units to transmit a beacon signal including the shared time information while the multi-link is established.