Information transmission method for a wireless local network

• US 7,043,252 B2
• Filed: 10/31/2002
• Issued: 05/09/2006
• 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
• Primary Examiner(s): Feild, Joseph
• Assistant Examiner(s): Nguyen, David Q.
• Application Number:
  US10/494,103
• Publication Number:
  US 20050003826A1
• Time in Patent Office: 1,286 Days
• Field of Search: 455/1, 455/67.14, 455/41, 455/452.2, 455/525, 455/65, 455/456.6, 455/9, 455/15, 455/67.11, 455/67.13, 455/67.16, 370/328
• US Class Current: 455/452.2
• 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 having a plurality of transceiving devices capable of operating in a peer-to-peer mode, the method comprising:

Determination by each transceiving device of the quality of communication with the other transceiving devices of said network,

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

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

Transmission periodically 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 selected based upon the stored data about the quality of communication between transceiving devices of said network and a specified communication threshold value,

comparing the stored data about the quality of communication between transceiving devices of said network with new data about the quality of communication between transceiving devices of said network and when the difference between data values of the stored data and the new data exceeds a specified value, the transmission periodically of information is repeated more frequently.

2. The method of claim 1 wherein the specified communication threshold value is based upon a bandwidth requirement.

3. The method of claim 1 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 communication 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 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.

10. The method of claim 1 wherein said data on communication quality stored are replaced with new data on communication quality.

11. A method for transmitting information in a wireless network having a plurality of transceiving devices capable of operating in a peer-to-peer mode, the method comprising:

determining the quality of communication links with the other transceiving devices of the network;

periodically transmitting an identification signal that includes data on the quality of communication links with other transceiving devices of the network;

receiving, from at least one other of the plurality of transceiving devices, an identification signal that includes data on the quality of communication links with the transceiving device that transmitted the identification signal;

storing the received data on the quality of communication links;

transmitting information to an addressee from among the plurality of transceiving devices by a route selected based upon the stored received data and a specified threshold value and a communication quality criteria; and

comparing stored data on the quality of communication links with new data on the quality of communication links and when the difference between data values of the stored data and the new data exceeds a specified value, the periodically transmitting an identification signal is repeated more frequently.

12. A transceiver for transmitting information in a wireless network having a plurality of transceiving devices capable of operating in a peer-to-peer mode, the transceiver comprising:

a memory; and

a controller coupled to the memory and configured to determine the quality of communication links with the other transceiving devices of the network,

periodically transmit an identification signal that includes data on the quality of communication links with other transceiving devices of the network,

receive, from at least one other of the plurality of transceiving devices, an identification signal that includes data on the quality of communication links with the transceiving device that transmitted the identification signal,

storing the received data on the quality of communication links in the memory,

transmit information to an addressee from among the plurality of transceiving devices by a route selected based upon the stored received data and a specified threshold value and a communication quality criteria, and

compare stored data on the quality of communication links with new data on the quality of communication links and when the difference between data values of the stored data and the new data exceeds a specified value, then increasing the frequency of periodically transmitting the identification signal.