Wireless local area network extension using existing wiring and wireless repeater module(s)

• US 20040047335A1
• Filed: 06/20/2003
• Published: 03/11/2004
• Est. Priority Date: 06/21/2002
• Status: Abandoned Application

• Current Assignee: WiDeFi Incorporated (Qualcomm, Inc.)
• Original Assignee: WiDeFi Incorporated (Qualcomm, Inc.)
• Inventors: Proctor, James Arthur Jr., Gainey, Kenneth Marvin
• Application Number:
  US10/465,817
• Publication Number:
  US 20040047335A1
• Time in Patent Office: Days
• US Class Current: 370/351
• CPC Class Codes: H04W 16/26 Cell enhancers or enhancement, e.g. for tunnels, building shadow

Abstract

A wireless area network (99) includes at least one access point (100), provides for multiple possible network devices (104, 105), and is located in a structure (108) with wiring (201). The wireless area network includes an interface unit (200) that extends the range of the network devices (104, 105). The interface unit (200) is for receiving wireless signals from the access point (100) and for transmitting the wireless signals on the wiring (201). The interface unit (200) is also for receiving the wireless signals from the wiring (201) and for transmitting the wireless signals to the access point (100).

Claims

1. A wireless area network including at least one access point and providing for multiple possible network devices, the wireless area network further being located in a structure with wiring, comprising:

an interface unit for receiving a wireless signal from the access point and transmitting the wireless signal on the wiring, or for receiving the wireless signal from the wiring and transmitting the wireless signal to the access point.

2. The wireless area network of claim 1, wherein the wiring is selected from a group consisting of Ethernet cable, power lines, CAT5 cable, television cable, coaxial cable, and telephone wires.

3. A wireless local area network interface unit for use in proximity to structural wiring, comprising:

an antenna for receiving a wireless signal;

an amplifier connected to an output of the antenna for amplifying the wireless signal;

an impedance matching circuit connected to an output of the amplifier and for matching an impedance of the structural wiring; and

a connecter for receiving an output of the impedance matching circuit and passing the wireless signal received by the antenna onto the structural wiring.

4. The wireless local area network interface unit of claim 3, further comprising a switch connected between the impedance matching circuit and the amplifier for reversing a signal transmission direction.

5. The wireless local area network interface unit of claim 4, wherein the switch is selectable to disconnect the output of the antenna from an input of the amplifier, and for connecting the output of the impedance matching circuit to the input of the amplifier, and the output of the amplifier to an input of the antenna.

6. The wireless local area network interface unit of claim 5, further comprising a signal detector for determining if the wireless signal is being received by the antenna, and for connecting the output of the antenna to the input of the amplifier to cause the wireless signal received at the antenna to be passed to the power line connector.

7. The wireless local area network interface unit of claim 6, wherein the signal detector is further for determining if a high frequency signal comprising the wireless signal is present at the connecter, and for causing the switch to connect the input of the antenna to the output of the amplifier to pass the wireless signal to the antenna.

8. The wireless local area network interface unit of claim 3, further comprising an intermediate frequency converter operably connected to the wireless signal received by the antenna to reduce a frequency of the wireless signal transmitted to the connector.

9. A range extending interface unit for a wireless local area network located in proximity to structural wiring, comprising:

a wiring connector for electrically interfacing with the wiring;

an antenna for receiving wireless communication signals;

a signal detector in communication with both the wiring connector and the antenna for receiving the wireless communication signals from the antenna and the wiring connector;

an amplifier connected to the antenna and the wiring connector for amplifying the wireless communication signals received therefrom; and

a switch circuit connected to the signal detector and the amplifier for connecting an output of the antenna to an input of the amplifier and an output of the amplifier to an input of the wiring connector when the wireless communication signals are detected at the antenna by the signal detector, and for connecting an output of the wiring connector to the input of the amplifier and the output of the amplifier to an input of the antenna when a signal is detected at the wiring connector.

10. The range extending interface unit of claim 9, wherein the wiring connector further includes an impedance matching circuit for matching an impedance of the structural wiring.

11. The range extending interface unit of claim 9, further comprising a filter having a bandwidth matched to a frequency of the wireless communication signals received by the antenna for attenuating frequencies outside the bandwidth.

12. The range extending interface unit of claim 9, wherein the wireless communication signals are transmitted at a frequency in compliance with an 802.11 standard.

13. An interface unit for extending a range of communication in a wireless local area network, when operating in proximity to structural wiring, comprising:

an antenna for receiving wireless communication signals;

a wiring connector for electrically interfacing with the wiring;

a signal detector connected to the antenna and to the wiring connector for receiving the wireless communication signals when provided from the antenna and the wiring connector;

a first amplifier for amplifying the wireless communication signals when received from the antenna and for passing the wireless communication signals once amplified to the wiring connector;

a second amplifier for amplifying the wireless communication signals when received from the wiring connector and for passing the wireless communication signals once amplified to the antenna; and

a switch connected to the signal detector and the first and second amplifiers for enabling the first amplifier when a signal is detected at the antenna by the signal detector and for enabling the second amplifier when a signal is detected at the wiring connector.

14. An interface connector for extending a range of communication in a wireless local area network located near wiring, comprising:

an interface cable for receiving/transmitting wireless communication signals from/to an access point;

a wiring connector for electrically interfacing with the wiring;

a signal detector in communication with both the interface cable and the wiring connector for receiving the wireless communication signals from the interface cable and the wiring connector;

a first amplifier for amplifying the wireless communication signals received from the interface cable and for passing the wireless communication signals once amplified to the wiring connector;

a second amplifier for amplifying the wireless communication signals received from the wiring connector and for passing the wireless communication signals once amplified to the interface cable.