Method of connecting a mobile terminal including a bluetooth module and a bluetooth access point

• US 20050054291A1
• Filed: 06/01/2004
• Published: 03/10/2005
• Est. Priority Date: 09/09/2003
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Park, Joung-Kyou
• Granted Patent: US 7,606,600 B2
• Time in Patent Office: Days
• US Class Current: 455/41.200
• CPC Class Codes: H04W 52/0229 where the received signal is a wanted signal
• CPC Class Codes: H04W 60/04 using triggered events
• CPC Class Codes: H04W 76/28 Discontinuous transmission [DTX]; Discontinuous reception [DRX]
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A method of connecting a mobile terminal and an AP. The mobile terminal has a short-distance wireless communication module and a mobile communication module, and the AP provides a wired/wireless communication interface. The SID and NID of a network with the AP are stored as SID_Bond and NID_Bond at an initial bonding with the AP. It is determined whether a channel established with the AP has been terminated. If the channel is terminated, the SID_Bond and NID_Bond are compared with an SID and NID for the present position. If they are different, the short-distance wireless communication module is transitioned to a low-power mode.

Claims

1. A method of connecting a mobile terminal and an access point (AP), the mobile terminal including a short-distance wireless communication module and a mobile communication module, and the AP providing a wired/wireless communication interface, the method comprising the steps of:

(a) storing cell identification (ID) information of a network in which the AP is located when the mobile terminal is initially bonded with the AP;

(b) determining whether a channel between the AP and the short-distance wireless communication module is terminated;

(c) detecting present cell ID information of a network in which the mobile terminal is currently positioned and comparing the stored cell ID information with the present cell ID information, if the channel is terminated; and

(d) transitioning the short-distance wireless communication module to a low-power mode if the stored cell ID information is different from the present cell ID information.

2. The method of claim 1, further comprising the step of transitioning the short-distance wireless communication module to a power-off mode if the stored cell ID information is different from the present cell ID information.

3. The method of claim 2, further comprising the step of attempting to connect to the AP by the short-distance wireless communication module if the stored cell ID information is identical to the present cell ID information.

4. The method of claim 2, further comprising the steps of:

detecting new present cell ID information for a new present position and comparing the stored cell ID information with the new present cell ID information by the mobile communication module, while the short-distance wireless communication module is in one of the low-power mode and the power-off mode; and

attempting to reconnect by the short-distance wireless communication module to the AP if the stored cell ID information is identical to the new present cell ID information.

5. The method of claim 4, further comprising the step of maintaining the short-distance wireless communication module in one of the low-power mode and the power-off mode if the stored cell ID information is different from the new present cell ID information.

6. The method of claim 4, further comprising the step of communicating with the AP on the channel if the short-distance wireless communication module is one of not disconnected to the AP in step (b) and is reconnected to the AP.

7. The method of claim 1, wherein the short-distance wireless communication module is a Bluetooth module, and the AP is a Bluetooth AP connected wirelessly to the Bluetooth module, for providing a wired/wireless interface to the Bluetooth module.

8. The method of claim 1, wherein the cell ID information is a system ID (SID) and network ID (NID) that identify a cell in a cellular network.

9. The method of claim 8, wherein the stored cell ID information is SID_Bond and NID_Bond.