Method and system for communicating data to a wireless access point

• US 7,385,476 B2
• Filed: 03/11/2004
• Issued: 06/10/2008
• Est. Priority Date: 03/11/2004
• Status: Active Grant

• Current Assignee: Extreme Networks, Inc.
• Original Assignee: Symbol Technologies, Inc. (Zebra Technologies Corporation)
• Inventors: Bridgelall, Raj
• Primary Examiner(s): Holloway, III; Edwin C.
• Application Number:
  US10/799,064
• Publication Number:
  US 20050200456A1
• Time in Patent Office: 1,552 Days
• Field of Search: 340/10.1, 340/10.2, 340/572.1, 370/338, 455/41.2
• US Class Current: 340/10.1
• CPC Class Codes: H04W 48/18 Selecting a network or a communication service
• CPC Class Codes: H04W 88/10 adapted for operation in multiple networks, e.g. multi-mode access points

Abstract

A system for communicating data through a network is disclosed. The system includes at least one access point and at least one mobile unit. The access point includes an access point processor, a wireless transceiver and an RFID transceiver. The wireless transceiver is coupled to the access point processor and the wireless transceiver is configured to receive and transmit data to a wireless device in the wireless local area network. The RFID transceiver is coupled to the access point processor and the RFID transceiver is configured to receive data from at least one mobile unit in the wireless local area network when the wireless transceiver is unavailable. The mobile unit includes a mobile unit processor, a mobile unit wireless transceiver and a mobile unit RFID transceiver. The mobile unit wireless transceiver is coupled to the mobile unit processor and the mobile unit wireless transceiver is configured to receive and transmit data to the access point. The mobile RFID transceiver is coupled to the mobile unit processor and the mobile unit processor is configured to send data to the RFID transceiver of the access point when the wireless transceiver of the access point is unavailable.

Claims

1. An access point for facilitating communication with one or more wireless devices in a wireless local area network comprising:

an access point processor;

a wireless transceiver having at least one wireless antenna, the wireless transceiver coupled to the access point processor, the wireless transceiver configured to receive and transmit data to at least one of the one or more wireless devices in the wireless local area network; and

a RFID transceiver having at least one RFID antenna, the RFID transceiver coupled to the access point processor, the RFID transceiver configured to receive data from at least one of the one or more wireless devices in the wireless local area network when the wireless transceiver is unavailable,

wherein the RFID transceiver is further configured to receive selected, predesignated data without interrogating the mobile device to reduce demand on the wireless transceiver,

wherein the at least one RFID antenna includes two or more RFID antennas coupled to the RFID transceiver via an antenna switch configured to connect the RFID transceiver with the two or more RFID antennas, the two or more RFID antennas including at least one first RFID antenna located remotely from the access point and coupled to the to the access point by a coaxial cable.

2. The access point of claim 1 wherein the access point is powered through an Ethernet connection.

3. The access point of claim 1 wherein the access point is coupled to a wired local area network.

4. The access point of claim 1 wherein the wireless device comprises an RFID reader.

5. The access point of claim 1 wherein the wireless transceiver is unavailable because the wireless transceiver is busy handling other data.

6. The access point of claim 1 wherein the wireless transceiver is unavailable because the wireless transceiver is inoperative.

7. The access point of claim 1 wherein the two or more RFID antennas include at least one second RFID antenna collocated with the access point.

8. The access point of claim 1 wherein the access point processor converts data received from the RFID transceiver or from the wireless transceiver and converts the data into proper format for transmission to a computer network.

30. The access point of claim 1, wherein the at least one first RFID antenna is positioned outside of a range of the at least one wireless antenna of the wireless transceiver.

31. The access point of claim 1, wherein the predesignated data includes at least one of slow data rate updates, configurations, status, device monitoring, and data management.

9. A system for communicating data through a network comprising:

an access point comprising;

an access point processor;

a wireless transceiver having at least one wireless antenna, the wireless transceiver coupled to the access point processor, the wireless transceiver configured to receive and transmit data to a wireless device in a wireless local area network; and

a RFID transceiver having at least one RFID antenna, the RFID transceiver coupled to the access point processor, the RFID transceiver configured to receive data from the wireless device in the wireless local area network when the wireless transceiver is unavailable;

wherein the RFID transceiver is further configured to receive selected, predesignated data without interrogating the mobile device to reduce demand on the wireless transceiver; and

a mobile unit comprising;

a mobile unit processor;

a mobile unit wireless transceiver having at least one mobile unit transceiver antenna, the mobile unit transceiver coupled to the mobile unit processor, the mobile unit wireless transceiver configured to receive and transmit data to the access point;

a mobile RFID transceiver having at least one mobile RFID transceiver antenna, the mobile RFID transceiver coupled to the mobile unit processor, the mobile unit processor configured to send data to the RFID transceiver of the access point when the wireless transceiver of the access point is unavailable; and

wherein the mobile unit wireless transceiver is configured to send data to a first access point and the mobile RFID transceiver is configured to send data to a second access point.

10. The system of claim 9 wherein the access point is powered through an Ethernet connection.

11. The system of claim 9 wherein the access point is coupled to a wired local area network.

12. The system of claim 9 wherein the wireless transceiver is unavailable because the wireless transceiver is busy handling other traffic.

13. The system of claim 9 wherein the wireless transceiver is unavailable because the wireless transceiver is inoperative.

14. The system of claim 9 wherein the wireless transceiver is unavailable because the data sent by the wireless device is predesignated for reception by the RFID transceiver to reduce demands on the wireless transceiver.

15. The system of claim 9 further comprising two or more RFID antennas coupled to the RFID transceiver via an antenna switch configured to connect the RFID transceiver with one of the two or more RFID antennas.

16. The system of claim 15 wherein each of the two or more RFID antennas are coupled to the access point by a coaxial cable.

17. The system of claim 16 wherein the RFID antennas are located remotely from the access point.

18. The system of claim 15 wherein the RFID antennas are collocated with the access point.

19. The system of claim 9 wherein the access point processor converts data received from the RFID transceiver or from the wireless transceiver and converts the data into proper format for transmission to a computer network.

20. The system of claim 9 wherein the access point is configured to interrogate RFID tags placed on objects.

21. The system of claim 9 wherein the mobile unit is configured to be used as a RFID reader.

22. The system of claim 9 wherein the mobile unit processor executes computer code to initiate a check to determine if the wireless transceiver of the access point is unavailable.

23. The system of claim 9 further comprising a second access point having a second RFID transceiver coupled to one or more RFID antennas and a second wireless transceiver, the second wireless transceiver outside of the range of the mobile unit wireless transceiver and at least one of the one or more RFID antennas within the range of the mobile unit RFID antenna.

24. A mobile unit for use in a wireless communication network comprising:

a mobile unit processor;

a mobile unit wireless transceiver coupled to the mobile unit processor, the mobile unit wireless transceiver configured to receive and transmit data to a wireless transceiver of an access point;

a mobile RFID transceiver coupled to the mobile unit processor, the mobile unit processor configured to send data to the RFID transceiver of the access point when the wireless transceiver of the access point is unavailable; and

wherein the mobile unit wireless transceiver is configured to send data to a first access point and the mobile RFID transceiver is configured to send data to a second access point;

wherein the RFID transceiver is further configured to receive selected, predesignated data without interrogating the mobile device to reduce demand on the wireless transceiver.

25. The mobile unit of claim 24 wherein the mobile unit is configured to operate as a RFID reader.

26. The mobile unit of claim 24 wherein the mobile unit processor is operable to initiate a check to determine if the wireless transceiver of the access point is unavailable.

27. The mobile unit of claim 24 wherein the wireless transceiver is unavailable because the wireless transceiver is busy.

28. The mobile unit of claim 24 wherein the wireless transceiver is unavailable because the wireless transceiver is inoperative.

29. The mobile unit of claim 24 wherein the wireless transceiver is unavailable because the data sent by the wireless device is designated for reception by the RFID transceiver to reduce demands on the wireless transceiver.