Method and device for connection of a device to a wireless network

• US 7,764,639 B2
• Filed: 09/11/2003
• Issued: 07/27/2010
• Est. Priority Date: 09/12/2002
• Status: Active Grant

• Current Assignee: InterDigital Patent Holdings, Inc. (InterDigital, Inc.)
• Original Assignee: Thomson Licensing (Vantiva SA)
• Inventors: Perrot, Sébastien, Jeanne, Ludovic, Straub, Gilles
• Primary Examiner(s): Kumar; Pankaj
• Assistant Examiner(s): Tsegaye; Saba
• Application Number:
  US10/660,183
• Publication Number:
  US 20040125744A1
• Time in Patent Office: 2,511 Days
• Field of Search: 370/328, 370/338, 370/400, 370/401, 370/349, 709/223, 709/249
• US Class Current: 370/328
• CPC Class Codes: H04L 2101/622 Layer-2 addresses, e.g. medium access control [MAC] addresses
• CPC Class Codes: H04L 61/00 Network arrangements, protocols or services for addressing or naming
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 60/00 Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support

Abstract

A method for connecting a device to a wireless network; at the level of a bridge device, configure to interface with the wireless network that maintains single management information. The bridge device separately registers, with respective MAC addresses, the device and itself as wireless devices on the wireless network.

Claims

1. Method for connecting a device not having wireless communication capability to a wireless network;

characterized, at the level of a bridge device comprising means for interfacing with the wireless network comprising a wireless access point, by the steps of;

detecting a connection between the device and the bridge device;

determining a MAC address for the device and for the bridge device; and

separately registering to the wireless access point, with their respective MAC addresses, the device and the bridge device as wireless devices on the wireless network, wherein the bridge device associates twice with the access point, once for each of said MAC addresses, so that said devices connected to said wireless network appear as wireless stations to the access point.

2. Method according to claim 1, further comprising the step of having the bridge device monitor traffic on the wireless network for the device.

3. Method according to claim 2, further comprising at least one of the following steps:

forwarding all multicast packets detected on the wireless network from the bridge device to the connected device;

forwarding all broadcast packets detected on the wireless network from the bridge device to the connected device;

forwarding unicast packets on the wireless network having as destination address the MAC address of the connected device to that device.

4. Method according to claim 3, where the connection between the device and the bridge device is an Ethernet connection, and wherein the step of detecting the connection comprises monitoring packets on the Ethernet connection for detecting a previously unknown source address of an. Ethernet device.

5. Method according to claim 3, wherein the wireless network is of the IEEE 802.11 type, further comprising the step of maintaining a single management information base for both the bridge device and the connected device.

6. Method according to claim 2, where the connection between the device and the bridge device is an Ethernet connection, and wherein the step of detecting the connection comprises monitoring packets on the Ethernet connection for detecting a previously unknown source address of an Ethernet device.

7. Method according to claim 2, wherein the wireless network is of the IEEE 802.11 type, further comprising the step of maintaining a single management information base for both the bridge device and the connected device.

8. Method according to claim 1, further comprising the step of programming packet filters for packets having as destination address the MAC address of the device, and upon detection of such a packet, acknowledging receipt of said packet in place of the device.

9. Method according to claim 8, further comprising at least one of the following steps:

forwarding all multicast packets detected on the wireless network from the bridge device to the connected device;

forwarding all broadcast packets detected on the wireless network from the bridge device to the connected device;

forwarding unicast packets on the wireless network having as destination address the MAC address of the connected device to that device.

10. Method according to claim 8, wherein the wireless network is of the IEEE 802.11 type, further comprising the step of maintaining a single management information base for both the bridge device and the connected device.

12. Method according to claim 1, wherein the wireless network is of the IEEE 802.11 type, further comprising the step of maintaining a single management information base for both the bridge device and the connected device.

11. Method according to claim l, where the connection between the device and the bridge device is an Ethernet connection, and wherein the step of detecting the connection comprises monitoring packets on the Ethernet connection for detecting a previously unknown source address of an Ethernet device.

13. Bridge device comprising means for communication on a wireless network and for connection of a first device not having wireless communication capability to a wireless network comprising a wireless access point, said bridge device comprising:

means for determining a MAC address of the first device and of the bridge device;

means for carrying out two separate device registrations, one for the bridge device, and one for the first device, for separately registering the first device and the bridge device to the wireless access point as wireless devices on the wireless network using their respective MAC addresses, wherein the bridge device associates twice with the access point, once for each of said MAC addresses so that said devices connected to said wireless network appear as wireless stations to the access point.

14. Method for connecting a device not having wireless communication capability to a wireless network;

characterized, at the level of a bridge device adapted to interface with a wireless access point on the wireless network, by the steps of;

detecting a connection between the device and the bridge device;

determining a MAC address for the device and for the bridge device; and

separately registering as wireless devices, with their respective MAC addresses, the device and the bridge device to the wireless access point on the wireless network, wherein the bridge device associates twice with the access point, once for each of said MAC addresses so that said devices connected to said wireless network appear as wireless stations to the access point.

15. Bridge device adapted for communication with a wireless access point on a wireless network and for connection of a first device not having wireless communication capability, said bridge device comprising;

means for determining a MAC address of the first device and of the bridge device;

means for carrying out two separate device registrations, one for the bridge device, and one for the first device, for separately registering the bridge device and the first device to the wireless access point as wireless devices on the wireless network using respective MAC addresses of the bridge device and the first device, wherein the bridge device associates twice with the access point once for each of said MAC addresses so that said devices connected to said wireless network appear as wireless stations to the access point.