Information transmission method for a wireless local network

• US 20050003826A1
• Filed: 10/31/2002
• Published: 01/06/2005
• Est. Priority Date: 11/01/2001
• Status: Active Grant

• Current Assignee: Airgain Incorporated
• Original Assignee: Airgain Incorporated
• Inventors: Kirdin, Aleksandr Nikolaevich, Sukharnikov, Yury Pavlovich, Khitrik, Semen Aleksandrovich
• Granted Patent: US 7,043,252 B2
• Time in Patent Office: Days
• US Class Current: 455/452.200
• CPC Class Codes: H04L 12/28 characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks] wireless communication networks H04W ; arrangements for dividing the transmission path H04W40/00
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 40/12 based on transmission quality or channel quality
• CPC Class Codes: H04W 40/248 Connectivity information update
• CPC Class Codes: H04W 40/30 for proactive routing
• CPC Class Codes: H04W 8/22 Processing or transfer of terminal data, e.g. status or physical capabilities
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 92/18 between terminal devices

Abstract

Method for data transmission in a wireless local area network refers to wireless local area networks (WLAN) consisting of a multitude of transceivers capable of establishing communication with one another (i.e. operating in a peer-to-peer mode). Implies the determination of the quality of communication between all transceivers and storage of communication quality data by each of the transceivers. Based on stored data on communication quality, a transceiver operating in the transmission mode transmits information to an addressee by a transmission route that provides for the quality of communication, which is equal to or better than a specified threshold value of communication quality. Stored data are updated periodically. The method improves the quality and reliability of communication for WLAN users (including mobile users) thus increasing the data transmission rate.

Claims

1. A method for transmitting information in a wireless local area network consisting of a multitude of transceiving devices capable of operating in a peer-to-peer mode wherein said method implies the following:

(a) Determination of the quality of communication between all transceiving devices of said network,

b) Storage by each of said transceiving devices of said network of received data about the quality of communication between all transceiving devices of said network,

(c) Transmission of information by a transceiving device of said network that is in transmission mode to an addressee from among transceiving devices of said network by a route that ensures such quality of communication that either exceeds or equal to a specified threshold value.

2. The method of claim 1 wherein the determination of said quality of communication between all transceiving devices of said network implies the following:

(a) Transmission by each transceiving device of said network of identification signal that includes data on quality of communication with other transceiving devices of said network,

(b) Reception by each transceiving device of said network of said identification signal from other transceiving devices of said network.

3. The method of claim 2 wherein the reception of said identification signal is performed when antenna beam is oriented in the direction of said transceiving device that is in transmission mode.

4. The method of claim 1 wherein the quality of communication in the peer-to-peer operation mode with said addressee is taken as a specified threshold value.

5. The method of claim 1 wherein the quality of communication is determined based on the level of a signal being received.

6. The method of claim 1 wherein the quality of communication is determined based on the ratio of a received signal level to noise level.

7. The method of claim 1 wherein transceiving devices belonging to said information transmission route transmit information (intended for an addressee) to one another at a rate determined based on data on quality of communication between them.

8. The method of claim 1 wherein said stored data on the quality of communication are taken as current values for subsequent transmission of information to said addressee.

9. The method of claim 1 wherein the cycle of said determination of the quality of communication and storage of said data on communication quality is repeated periodically.

10. The method of claim 9 wherein the cycle of said determination of the quality of communication and storage of said data on communication quality is repeated at a time interval from 0.1 s to 100 s.

11. The method of claim 9 wherein said data on communication quality stored after a previous said cycle are replaced with said data on communication quality stored after the said next cycle.

12. The method of claim 9 wherein said data on communication quality stored after a previous said cycle are compared with said data on communication quality stored after the said next cycle and when the difference between data values of both cycles doesn'"'"'t exceed specified value, the interval between said cycles is kept the same as it was or increased;

when the difference between data values of both cycles exceeds specified value, the interval between cycles is decreased.