Wireless communication system

• US 5,818,619 A
• Filed: 06/13/1996
• Issued: 10/06/1998
• Est. Priority Date: 06/15/1995
• Status: Expired due to Term

• Current Assignee: Jolt Ltd (MRV Communications Incorporated)
• Original Assignee: Jolt Ltd (MRV Communications Incorporated)
• Inventors: Bar Lev, Hillel, Medved, David, Davidovich, Leonid
• Primary Examiner(s): NEGASH, KINFE MICHAEL
• Application Number:
  US08/661,306
• Time in Patent Office: 845 Days
• Field of Search: 359/118-119, 359/143, 359/113, 359/152, 359/172, 359/174, 359/176, 455/151-2, 379/56, 340/825.72, 370/277-278
• US Class Current: 398/128
• CPC Class Codes: H04B 10/1149 Arrangements for indoor wireless networking of information
• CPC Class Codes: H04B 10/40 Transceivers

Abstract

The invention provides a wireless communication system having an airlink transceiver including an airlink transmitter and an airlink receiver for respectively transmitting and receiving signals over the air; an optical communication network interface unit for transmitting optical signals to the airlink transmitter and for receiving optical signals from the airlink receiver; and a universal converter unit, coupled to the airlink transceiver and to the optical communication network interface unit, for supplying optical signals without protocol conversion to the optical communication network interface unit, and electrical signals to the airlink transceiver. The invention also provides a method for connecting a wireless communication system to a plurality of communication networks, each having a different fundamental type of basic networking technologies.

Claims

1. A wireless communication system, comprising:

an airlink transceiver (22) including an airlink transmitter (26) and an airlink receiver (21) for respectively transmitting and receiving signals over the air;

an optical communication network interface unit (11) for transmitting optical signals via a first optical connector (14) to said airlink transmitter and for receiving optical signals via a second optical connector (15) from said airlink receiver; and

a universal converter unit (10), electrically coupled to said airlink transceiver and optically coupled to said first and second optical connectors of the optical communication network interface unit, for respectively supplying and receiving electrical and optical signals without protocol conversion between said optical communication network interface unit and said airlink transceiver.

2. The system according to claim 1, further comprising an optical switch unit coupled to said universal converter unit and to a plurality of optical communication network interface units, for selectively switching between communication networks.

3. The system according to claim 2, wherein said communication networks are selected from the group of networks including Ethernet, Token-Ring, FDDI, ATM, fast Ethernet, and a telephone network employing PABX/PBX systems.

4. The system according to claim 1, wherein said universal converter unit includes:

an optical transmitter unit, operable to receive first electric signals generated by signals received over the air from said airlink receiver, and to transmit, via fiber optic cables, optical signals at a first wavelength, to a receiver in said optical communication network interface unit, said optical signals transmitted at said first wavelength being detectable by said receiver in said optical communication network interface unit; and

an optical receiver unit, operable to receive optical signals from a transmitter in said communication network at at least one of said first wavelength and a second wavelength, to convert said optical signals received from said transmitter in said communication network to second electric signals and to provide said second electric signals to said airlink transmitter, wherein

said optical communication network interface unit is operable to receive and transmit optical signals at at least one of said first wavelength and said second wavelength.

5. The system according to claim 1, wherein said airlink transceiver is one of a group of transceivers including optical airlink, RF airlink, and ultrasound airlink transceivers.

6. A universal converter unit for supplying optical signals without protocol conversion to at least one of an airlink transceiver and an optical communication network, said universal converter unit comprising:

an optical transmitter unit, operable to receive first electric signals generated by signals received over the air from an airlink receiver in said airlink transceiver, and to transmit, via fiber optic cables, optical signals at a first wavelength, to a receiver in said optical communication network, said optical signals transmitted at said first wavelength being detectable by said optical receiver in said communication network; and

an optical receiver unit, operable to receive optical signals from a transmitter in said communication network at at least one of said first wavelength and a second wavelength, to convert said optical signals received from said transmitter in said communication network to second electric signals and to provide said second electric signals to an airlink transmitter in said airlink transceiver, wherein

said optical communication network is operable to receive and transmit optical signals at at least one of said first wavelength and said second wavelength.

7. A universal converter unit according to claim 6, wherein said airlink transceiver is one of a group of transceivers including optical airlink, RF airlink, and ultrasound airlink transceivers.

8. A method of connecting a wireless communication system to a plurality of different communication networks, said method comprising the steps of:

transmitting and receiving signals over the air through an airlink transceiver (22) including an airlink transmitter (26) and an airlink receiver (21),

transmitting optical signals to the airlink transmitter via a first optical connector (14) and receiving optical signals from the airlink receiver via a second optical connector (15) through an optical communication network interface unit (11),

supplying and receiving optical and electrical signals without protocol conversion between said optical communication network interface unit (11) and said airlink transceiver (22), by a universal converter unit (10) coupled to said airlink transceiver and to said optical communication network interface unit.

9. The method according to claim 8, further comprising switching between different types of communication networks with an optical switch unit coupled to said universal converter unit and to a plurality of said optical communication network interface units.

10. A method according to claim 8, further comprising coupling said optical communication network interface unit to at least one of a plurality of communication networks, including Ethernet, Token-Ring FDDI, ATM, fast Ethernet, and a telephone network employing PABX/PBX systems.

11. The method according to claim 8, wherein the steps of supplying and receiving further comprise:

receiving first electric signals generated by signals received over the air from said airlink receiver by an optical transmitter unit (20), and transmitting, via fiber optic cables, to a receiver (13) in said optical communication network interface unit, optical signals at a first wavelength, and detecting said optical signals transmitted at a first wavelength by said receiver (13) in said optical communication network interface unit;

receiving optical signals from a transmitter (12) in said optical communication network interface unit at least one of said first wavelength and a second wavelength by an optical receiver unit (24), and converting said optical signals received from said transmitter (12) in said optical communication network interface unit to second electric signals and providing said second electric signals to said airlink transmitter; and

receiving and transmitting optical signals at at least one of said first wavelength and said second wavelength by said optical communication network interface unit.

12. A method of supplying optical signals without protocol conversion to at least one of an airlink transceiver (22) and an optical communication network, said method comprising the steps of:

receiving first electric signals generated by signals received over the air from said airlink receiver by an optical transmitter unit (20), and transmitting, via fiber optic cables, to a receiver (13) in said optical communication network, optical signals at a first wavelength, and detecting said optical signals transmitted at a first wavelength by said receiver (13) in said optical communication network;

receiving optical signals from a transmitter (12) in said optical communication network at at least one of said first wavelength and a second wavelength by an optical receiver unit (24), and converting said optical signals received from said transmitter (12) in said optical communication network to second electric signals and providing said second electric signals to said airlink transmitter; and

receiving and transmitting optical signals at at least one of said first wavelength and said second wavelength by said optical communication network.