Method and system for transmitting/receiving signal in wireless local network mesh communication system

• US 7,773,570 B2
• Filed: 11/22/2006
• Issued: 08/10/2010
• Est. Priority Date: 11/22/2005
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Taori, Rakesh, Choi, Young-Gon, Lee, Sung-Won
• Primary Examiner(s): RAMPURIA, SHARAD K
• Application Number:
  US11/603,020
• Publication Number:
  US 20070127428A1
• Time in Patent Office: 1,357 Days
• Field of Search: 370/338, 370/328, 370/310.2, 370/331
• US Class Current: 370/338
• CPC Class Codes: H04W 74/08 Non-scheduled access, e.g. ALOHA hybrid access H04W74/02
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

Disclosed is a method for transmitting/receiving signals in a Wireless Local Area Network (WLAN) mesh communication system. The method includes transmitting, by a transmitter, a control message including an address to receivers according to a generated traffic, if traffic is generated; and receiving, by a receiver, the transmitted control message, confirming the address included in the control message, and performing a predetermined operation according to results obtained by confirming the address.

Claims

1. A method for transmitting/receiving signals in a Wireless Local Area Network (WLAN) mesh communication system, the method comprising:

transmitting, by a transmitter, a control message including an address to receivers according to a generated traffic, if traffic is generated; and

receiving, by a receiver, the control message, confirming the address included in the control message, and performing a predetermined operation according to results obtained by confirming the address.

2. The method as claimed in claim 1, wherein the address included in the control message includes a Media Access Control (MAC) address of receivers that will process the generated traffic.

3. The method as claimed in claim 1, wherein the address included in the control message includes a Media Access Control (MAC) address of receivers that will switch operation modes into waiting modes if the traffic is generated.

4. The method as claimed in claim 1, wherein the address included in the control message is a Media Access Control (MAC) address of receivers that will update a Network Allocation Vector (NAV) if the traffic is generated.

5. The method as claimed in claim 2, wherein the MAC address includes one of a globally administered individual address, a locally administered individual address, a globally administered group address and a locally administered group address.

6. The method as claimed in claim 3, wherein the MAC address includes one of a globally administered individual address, a locally administered individual address, a globally administered group address and a locally administered group address.

7. The method as claimed in claim 4, wherein the MAC address includes one of a globally administered individual address, a locally administered individual address, a globally administered group address and a locally administered group address.

29. The method as claimed in claim 1, wherein, in the step of performing the predetermined operation, the receiver performs Network Allocation Vector (NAV) update during a predetermined time if the address included in the control message is a Media Access Control (MAC) address according to a generation of a Wireless Distribution System (WDS) traffic.

30. The method as claimed in claim 29, wherein the NAV update is performed so as that a NAV represents that data transmission to the transmitter is impossible.

8. A system for transmitting/receiving signals in a Wireless Local Area Network (WLAN) mesh communication system, the system comprising:

a transmitter for transmitting a control message including an address to receivers according to a generated traffic, if traffic is generated; and

a receiver for receiving the control message, confirming the address included in the control message, and performing a predetermined operation according to results obtained by confirming the address.

9. The system as claimed in claim 8, wherein the address included in the control message includes a Media Access Control (MAC) address of receivers that will process the generated traffic.

10. The system as claimed in claim 8, wherein the address included in the control message includes a Media Access Control (MAC) address of receivers that will switch operation modes into waiting modes if the traffic is generated.

11. The system as claimed in claim 8, wherein the address included in the control message is a Media Access Control (MAC) address of receivers that will update a Network Allocation Vector (NAV) if the traffic is generated.

12. The system as claimed in claim 9, wherein the MAC address includes one of a globally administered individual address, a locally administered individual address, a globally administered group address and a locally administered group address.

13. The system as claimed in claim 10, wherein the MAC address includes one of a globally administered individual address, a locally administered individual address, a globally administered group address and a locally administered group address.

14. The system as claimed in claim 11, wherein the MAC address includes one of a globally administered individual address, a locally administered individual address, a globally administered group address and a locally administered group address.

31. The system as claimed in claim 8, wherein the receiver performs Network Allocation Vector (NAV) update during a predetermined time if the address included in the control message is a Media Access Control (MAC) address according to a generation of a Wireless Distribution System (WDS) traffic.

32. The system as claimed in claim 31, wherein the NAV update is performed so as that a NAV represents that data transmission to the transmitter is impossible.

15. A method for transmitting/receiving a control message of one or more receivers in a Wireless Local Area Network (WLAN) mesh communication system including the receivers, the method comprising the steps of:

setting, by a transmitter, a Media Access Control (MAC) address of a receiver, which has a priority from among the receivers, in a MAC address field of a frame of the control message;

setting, by a transmitter, time maintaining the priority in a duration field of the frame;

transmitting, by a transmitter, the frame to a receiver, the frame employing the MAC address as a destination;

receiving, by the receiver, the transmitted frame, confirming a priority corresponding to the MAC address; and

performing, by the receiver, a predetermined operation according to the confirmed priority.

16. The method as claimed in claim 15, wherein the frame is a Clear-to-Send (CTS) frame.

17. The method as claimed in claim 15, wherein the MAC address includes one of a globally administered individual address, a locally administered individual address, a globally administered group address and a locally administered group address.

18. The method as claimed in claim 15, wherein, in the step of performing the predetermined operation, the receiver does not perform Network Allocation Vector (NAV) update if the MAC address of the received frame is a MAC address according to a generation of a Wireless Distribution System (WDS) traffic.

19. The method as claimed in claim 15, wherein, in the step of performing the predetermined operation, the receiver performs Network Allocation Vector (NAV) update during the time set in the duration field if the MAC address of the received frame is an address according to a generation of a Wireless Distribution System (WDS) traffic.

20. The method as claimed in claim 18, wherein the NAV update is performed so as that a NAV represents that data transmission to the transmitter is impossible.

21. The method as claimed in claim 19, wherein the NAV update is performed so as that a NAV represents that data transmission to the transmitter is impossible.

22. A system for transmitting/receiving a control message of one or more receivers in a Wireless Local Area Network (WLAN) mesh communication system including the receivers, the system comprising:

a transmitter for setting a Media Access Control (MAC) address of a receiver, which has a priority from among the receivers, in a MAC address field of a frame of the control message, setting time maintaining the priority in a duration field of the frame, and transmitting the frame to a receiver, the frame employing the MAC address as a destination; and

a receiver for receiving the frame, confirming a priority corresponding to the MAC address, and performing a predetermined operation according to the confirmed priority.

23. The system as claimed in claim 22, wherein the frame is a Clear-to-Send (CTS) frame.

24. The system as claimed in claim 22, wherein the MAC address includes one of a globally administered individual address, a locally administered individual address, a globally administered group address and a locally administered group address.

25. The system as claimed in claim 22, wherein the receiver does not perform Network Allocation Vector (NAV) update if the MAC address of the received frame is an address according to a generation of a Wireless Distribution System (WDS) traffic.

26. The system as claimed in claim 22, wherein the receiver performs Network Allocation Vector (NAV) update during the time set in the duration field if the MAC address of the received frame is an address according to a generation of a Wireless Distribution System (WDS) traffic.

27. The system as claimed in claim 25, wherein the NAV update is performed so as that a NAV represents that data transmission to the transmitter is impossible.

28. The system as claimed in claim 26, wherein the NAV update is performed so as that a NAV represents that data transmission to the transmitter is impossible.