Mechanism for a wireless device to relinquish its network master status based on its power reserve

A device status and wireless device technology, applied in the field of mobile communication, can solve problems such as exhausted battery and power consumption

Inactive Publication Date: 2005-07-27
THOMSON LICENSING SA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Typically, the master device must also send sync beacons etc. to the slave devices to maintain network synchronization, which consumes additional power
If the master device is battery-powered, it can drain the battery of the master device due to the mandatory power supply characteristics of the master device role.

Method used

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  • Mechanism for a wireless device to relinquish its network master status based on its power reserve
  • Mechanism for a wireless device to relinquish its network master status based on its power reserve
  • Mechanism for a wireless device to relinquish its network master status based on its power reserve

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Embodiment Construction

[0013] A method and apparatus are provided for a wireless device to relinquish its network master status based on its power reserves, thereby increasing the battery life of battery powered wireless devices in the network. The present disclosure teaches an embodiment of automatically and dynamically selecting the device with the highest battery charge or preferably the device plugged into a mains outlet as the master device. Thus extending the battery life of other devices.

[0014] The master device monitors its own power reserves and, in some embodiments, also monitors the power reserves of other devices in the network. If the master's power reserve falls below a threshold, it relinquishes its master role and allows another device with a larger power reserve to become the new master. This will allow the device to stay connected to the network without quickly depleting its power reserves, thereby extending its battery life. Therefore, the method extends the battery life of w...

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Abstract

A system and method for relinquishing a network master device status in accordance with a device power reserve level includes a system having a network master device for monitoring its own power reserve level and relinquishing its network master status for that of network slave status when such level is below a threshold value, and one or more network slave devices where each such device is in signal communication with the network master device for monitoring its own power reserve level and relinquishing its network slave status for that of network master status when such level is above at least one of the threshold value and the power reserve level of the master; and further includes a corresponding method for a wireless master device to relinquish its network master status based on its power reserve level, where the method includes monitoring the power reserve level of the wireless master device, determining whether the monitored power reserve level falls below a threshold, and relinquishing the network master status of the wireless device for that of network slave status if the power reserve level falls below the threshold.

Description

technical field [0001] The present invention relates to mobile communications, and more particularly to wireless communications networks. Many wireless networks use the concept of a master with slaves, hereinafter referred to as a "master / slave network". Batteries typically power devices in such networks, and thus the devices have limited power reserves. This is in stark contrast to the relatively unlimited reserves of devices connected to mains outlets. Background technique [0002] The role of the master device in a master / slave network is power-intensive, the master device cannot go into sleep mode to conserve power because it must be available in order to receive signals from the slave devices and maintain the network Synchronize. Typically, the master device must also send sync beacons etc. to the slave devices to maintain network synchronization, which consumes additional power. If the master device is battery powered, it is possible to drain the battery of the mas...

Claims

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Application Information

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IPC IPC(8): H04B7/26H04B7/24H04M1/72505H04M1/73H04W52/02H04W84/20
CPCH04W52/0251H04W84/20H04M1/72505Y02B60/50Y02D30/70
Inventor 路易斯·R·利特文
Owner THOMSON LICENSING SA
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