Base Station Multi-Link Control for Secondary Wireless-Link Power Saving
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Solution Overview
Problem
The challenge is to reduce power consumption in wireless terminal apparatuses.
Innovation Solution
A base station employs a multi-link configuration with a primary and secondary wireless signal processing units, where the secondary link can be set to a power-saving operation pause mode under specific conditions, and a link management unit manages these links to optimize power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the secondary link is kept in active mode to maintain communication readiness, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The patent applies dynamics by making the secondary link's operational state changeable between active mode and operation pause mode based on communication conditions. The link management unit dynamically adjusts the secondary link state according to whether data transmission is required, allowing the system to adapt between power saving and communication readiness states.
Solution Approach 2:
The patent changes the operational parameter of the secondary link between two distinct states: active mode and operation pause mode. By switching the link's operational status based on communication needs, the system optimizes the balance between power consumption and communication reliability.
2Use of energy by moving object
If the secondary link is set to operation pause mode to reduce power consumption, then power consumption is reduced, but communication response time increases
Solution Approach 1:
The patent applies preliminary action by maintaining the secondary link in active mode when data transmission is anticipated or required. The link management unit proactively keeps the link ready before data arrives, preventing delays that would occur if the link had to wake up from operation pause mode.
Solution Approach 2:
The system dynamically switches the secondary link between active and operation pause modes based on real-time communication conditions, optimizing the trade-off between power consumption and response time by being ready in advance when needed.
3Reliability
If multi-link configuration is used to improve communication reliability, then communication reliability is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the communication system into primary link and secondary link with distinct roles. The primary link handles main communication tasks while the secondary link provides backup and additional capacity, allowing complex multi-link functionality to be managed through clear functional separation.
Solution Approach 2:
The secondary link serves multiple functions: it can act as a backup for reliability, provide additional transmission capacity, and enable power saving modes. This multi-functionality justifies the added complexity by providing versatile communication capabilities.
Data Source
AI summary
A base station of the embodiment includes first and second wireless signal processing units and a link management unit. The first and second wireless signal processing units are configured to transmit and receive wireless signals using first and second channels, respectively. The link management unit establishes a multi-link with a terminal apparatus using the first and second wireless signal processing units, sets the first wireless signal processing unit as a primary link, and sets the second wireless signal processing unit to a secondary link. When the secondary link is in an active mode and a first condition is satisfied, the link management unit sets the secondary link to the operation pause mode. When the secondary link is in an operation pause mode and a second condition is satisfied, the link management unit sets the secondary link to the active mode.