Method of mobile terminal for handover/switch among different wireless communication networks in a heterogeneous network environment
First Claim
1. A method for switching among different wireless communication networks for a mobile terminal having at least a signal detector for detecting a wireless communication work, comprising:
- detecting a moving velocity of the mobile terminal;
turning on the signal detector for detecting the preferred wireless communication network when the moving velocity of the mobile terminal is smaller than the upper velocity limitation of the preferred wireless communication work;
receiving the signals of the preferred wireless communication network if the signals are detected after turning on the signal detector; and
switching into the preferred wireless communication network after receiving the signals.
1 Assignment
0 Petitions
Accused Products
Abstract
A method of mobile terminal for handover/switch among different wireless communication networks in a heterogeneous network environment is provided. The presented method can optimize battery life by switching off the radio functionality or signal detector when it is not required, based on the movement information, ex. velocity, of the mobile terminal in the heterogeneous wireless communication network. This method will determine an optimal time to turn off the signal detector for minimizing the power consumption. Furthermore, when the mobile terminal moves continuously but the coverage of the preferred wireless network is relatively small, this method can also avoid redundant and unnecessary handover for keeping the communication quality stable, and reduce the loading of frequent handover in the heterogeneous network.
21 Citations
39 Claims
-
1. A method for switching among different wireless communication networks for a mobile terminal having at least a signal detector for detecting a wireless communication work, comprising:
-
detecting a moving velocity of the mobile terminal; turning on the signal detector for detecting the preferred wireless communication network when the moving velocity of the mobile terminal is smaller than the upper velocity limitation of the preferred wireless communication work; receiving the signals of the preferred wireless communication network if the signals are detected after turning on the signal detector; and switching into the preferred wireless communication network after receiving the signals. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A mobile terminal for switching among different wireless communication networks, comprising:
-
a velocity detector detecting a moving velocity of the mobile terminal; a signal detector for detecting signals of a specific wireless communication network; a communication interface having a plurality of interfaces corresponding to the wireless communication networks; and a processor for turning on the signal detector for detecting a preferred wireless communication network when the moving velocity of the mobile terminal is smaller than the upper velocity limitation of the preferred wireless communication work, receiving the signals of the preferred wireless communication network if the signals are detected after turning on the signal detector, and switching into the preferred wireless communication network after receiving the signals. - View Dependent Claims (8, 9, 10, 11, 12)
-
-
13. A record medium comprising instructions that cause a mobile terminal having at least a signal detector for detecting a wireless communication network to executing steps of:
-
detecting a moving velocity of the mobile terminal; turning on the signal detector for detecting the preferred wireless communication network when the moving velocity of the mobile terminal is smaller than the upper velocity limitation of the preferred wireless communication work; receiving the signals of the preferred wireless communication network if the signals are detected after turning on the signal detector; and switching into the preferred wireless communication network after receiving the signals - View Dependent Claims (14, 15, 16, 17, 18)
-
-
19. A method for handover among different wireless communication networks for a mobile terminal having at least a signal detector for detecting a preferred wireless communication work, comprising:
-
detecting a moving velocity of the mobile terminal; turning on the signal detector for detecting the preferred wireless communication network when the moving velocity of the mobile terminal is zero; checking whether the preferred network belongs to a short-range wireless network or not when the moving velocity of the mobile terminal is not zero and is smaller than the upper velocity limitation of the preferred wireless communication work; turning on the signal detector for detecting the preferred wireless communication network when the preferred network does not belong to short-range wireless network; receiving the signals of the preferred wireless communication network if the signals of the preferred wireless communication network are detected after turning on the signal detector; and handovering to the preferred wireless communication network after receiving the signals. - View Dependent Claims (20, 21, 22, 23, 24, 25)
-
-
26. A mobile terminal for handover among different wireless communication networks, comprising:
-
a velocity detector detecting a moving velocity of the mobile terminal; a signal detector for detecting signals of a specific wireless communication network; a communication interface having a plurality of interfaces corresponding to the wireless communication networks; and a processor for turning on the signal detector for detecting a preferred wireless communication network when the moving velocity of the mobile terminal is zero, checking whether the preferred network belongs to a short-range wireless network or not when the moving velocity of the mobile terminal is not zero and is smaller than the upper velocity limitation of the preferred wireless communication work, turning on the signal detector for detecting the preferred wireless communication network when the preferred network does not belong to short-range wireless network, receiving the signals of the preferred wireless communication network if the signals of the preferred wireless communication network are detected after turning on the signal detector, and handovering to the preferred wireless communication network after receiving the signals. - View Dependent Claims (27, 28, 29, 30, 31, 32)
-
-
33. A record medium comprising instructions that cause a mobile terminal having at least a signal detector for detecting a preferred wireless communication network to executing steps of:
-
detecting a moving velocity of the mobile terminal; turning on the signal detector for detecting the preferred wireless communication network when the moving velocity of the mobile terminal is zero; checking whether the preferred network belongs to a short-range wireless network or not when the moving velocity of the mobile terminal is not zero and is smaller than the upper velocity limitation of the preferred wireless communication work; turning on the signal detector for detecting the preferred wireless communication network when the preferred network does not belong to short-range wireless network; receiving the signals of the preferred wireless communication network if the signals of the preferred wireless communication network are detected after turning on the signal detector; and handovering to the preferred wireless communication network after receiving the signals. - View Dependent Claims (34, 35, 36, 37, 38, 39)
-
Specification