System and method for communication connection via heterogeneous networks

• US 20040208156A1
• Filed: 04/14/2004
• Published: 10/21/2004
• Est. Priority Date: 04/15/2003
• Status: Active Grant

• Current Assignee: BenQ Corporation (Qisda Corporation)
• Original Assignee: BenQ Corporation (Qisda Corporation)
• Inventors: Hsiao, Jey-Lin, Wang, Chen-Chi, Chu, Wuo-Hui
• Granted Patent: US 7,295,530 B2
• Time in Patent Office: Days
• US Class Current: 370/338
• CPC Class Codes: H04L 12/462 LAN interconnection over a bridge based backbone
• CPC Class Codes: H04W 40/02 Communication route or path selection, e.g. power-based or shortest path routing

Abstract

A method for communication connection via heterogeneous networks. A first electronic device transmits a first data packet to a first wireless bridge. The first wireless bridge attaches a first tunnel header to the first data packet to form a first wireless data packet, and transmits the first wireless data packet via the wireless network. A second wireless bridge receives the first wireless data packet via the wireless network, removing the first tunnel header therefrom to acquire a second data packet, stores an association relationship between the first electronic device and the first wireless bridge, and transmits the second data packet to the second electronic device. The second electronic device receives the second data packet and transmits data to the first electronic device.

Claims

1. A method for communication connection in a wireless network comprising a plurality of wireless bridges individually associated with at least one electronic device, performing the steps of:

(a) a first electronic device transmitting a first data packet to a first wireless bridge, the first data packet comprising a source address for a first identity corresponding to the first electronic device, and a destination address for a second electronic device corresponding to a second electronic device;

(b) the first wireless bridge attaching a first tunnel header to the first data packet to form a first wireless data packet, and transmitting the first wireless data packet via the wireless network, the first tunnel header comprising a third identity corresponding to the first wireless bridge;

(c) a second wireless bridge receiving the first wireless data packet via the wireless network, removing the first tunnel header therefrom to acquire a second data packet, storing an association relationship between the first electronic device and the first wireless bridge, and transmitting the second data packet to the second electronic device; and

(d) the second electronic device receiving the second data packet, respectively employing the first identity and the second identity as a destination address and a source address, and transmitting data to the first electronic device.

2. The method as claimed in claim 1 further comprising a step of the first electronic device and the second electronic device establishing communication connection with each other.

3. The method as claimed in claim 1 wherein the step (b) further comprises a step of (e) the first wireless bridge transmitting the first wireless data packet using a broadcast method.

4. The method as claimed in claim 1 wherein the step (b) further comprises a step of (f) one of the wireless bridges other than the first wireless bridge receiving and acquiring the broadcasted wireless data packet, and storing the association relationship between the first electronic device and the first wireless bridge according to the first identity and the third identity.

5. The method as claimed in claim 1 wherein the step (d) further comprises the steps of:

(g) the second electronic device transmitting a third data packet to the second wireless bridge, the third data packet comprising the first identity as a destination address, and the second identity as a source address;

(h) the second wireless bridge attaching a second tunnel header to the third data packet to form a second wireless data packet according to the stored association relationship, the second tunnel header comprising a receiving address for the third identity, and a temporary transmission address for a fourth identity corresponding to the second wireless bridge;

(i) the first wireless bridge receiving the second wireless data packet, removing the second tunnel header to acquire a fourth data packet, and storing an association relationship between the second wireless bridge and the second electronic device; and

(j) the first electronic device receiving the fourth data packet.

6. The method as claimed in claim 1 wherein the first tunnel header further comprises a receiving address for a broadcast method, and a packet type.

7. The method as claimed in claim 6 wherein the second tunnel header further comprises a receiving address for the first wireless bridge and the packet type.

8. The method as claimed in claim 7 wherein the packet type comprises “

0x5628”

.

9. The method as claimed in claim 7 wherein the wireless bridge comprises an extended bridge, an inter-building bridge or a repeater.

10. A system for communication connection utilized in a wireless network comprising a plurality of wireless bridges for communication connection with at least one electronic device, comprising:

a first electronic device, located in the wireless network, and transmitting a packet;

a first wireless bridge, corresponding to the first electronic device, receiving the packet, attaching a tunnel header thereto to form a wireless data packet, and broadcasting the wireless data packet;

a second wireless bridge, located in the wireless network, receiving the wireless data packet from the first wireless bridge, and removing is the tunnel header therefrom to acquire the packet; and

a second electronic device, corresponding to the second wireless bridge, receiving the packet from the second wireless bridge.

11. The system as claimed in claim 10 wherein the packet comprises a first identity corresponding to the second electronic device, and does not be received by any electronic device other than the second electronic device.

12. The system as claimed in claim 10 wherein the tunnel header further comprises a receiving address for a broadcast method, and a packet type.

13. The system as claimed in claim 12 wherein the packet type comprises “

0x5628”

.

14. The system as claimed in claim 10 wherein the wireless bridge comprises an extended bridge, an inter-building bridge or a repeater.

15. A method for communication connection utilized in a wireless network comprising a plurality of wireless bridges for communication connection with at least one electronic device, performing the steps of:

a first electronic device transmitting a packet to a first wireless bridge, the packet comprising a first identity corresponding to the first electronic device;

the first wireless bridge attaching a tunnel header to the packet to form a wireless data packet, the tunnel header comprising a second identity corresponding to the first wireless bridge;

the first wireless bridge broadcasting the wireless data packet to a second wireless bridge via the wireless network; and

the second wireless bridge storing an association relationship between the first wireless bridge and the first electronic device according to the first identity and the second identity.

16. The method as claimed in claim 15 wherein the tunnel header further comprises a receiving address for a broadcast method, and a packet type.

17. The method as claimed in claim 16 wherein the protocol type comprises “

0x5628”

.

18. The method as claimed in claim 15 wherein the wireless bridge comprises an extended bridge, an inter-building bridge or a repeater.