Alvarion Israel (2003) Ltd.

Innowave Eci Wireless Systems Ltd.

Moshe Nattiv

Kirk Treadaway

Tho Le Ngoc

Tat Huen

Darryl Denton

Mike Hamilton

A method and apparatus for baseband transmission between a top floor unit and an outdoor unit in a terminal for a wireless metropolitan area network. A terminal for a wireless link in a metropolitan area network includes an extender device (e.g. a top floor unit) for receiving data packets from a computer network coupled to the extender device and for forwarding the data packets, and a broadcast device (e.g. an outdoor unit) coupled to the extender device for receiving the data packets from the extender device according to baseband transmission and having a wireless transceiver for communicating the data packets over the wireless link. The terminal can include a cable coupled between the extender device and the broadcast device wherein the cable comprises a twisted pair of conductors for providing the data packets from the extender device to the broadcast device. The twisted pair of conductors can be a Categorytwisted pair of conductors. Thee broadcast device can include a microwave antenna coupled to the wireless transceiver; and a housing coupled to the microwave antenna for enclosing the wireless transceiver.

Method and apparatus for baseband transmission between a top floor unit and an outdoor unit in a terminal for a wireless metropolitan area network

Method and apparatus for activating and implementing adaptive countermeasures for wireless communication of Fast Ethernet data packets. A terminal for a wireless communication link includes a data packet receiver for receiving data packets, a packet formatting apparatus coupled to the data packet receiver for formatting the data packets according to radio frames, a wireless transceiver coupled to the packet formatting apparatus for communicating the radio frames over a wireless link, and a processor coupled to the packet formatting apparatus for selectively activating a technique for altering a manner in which the radio frames are communicated over the wireless link. The method can include a step of selectively activating a technique for implementing flow control on the data packets. The broadcast device can monitor a bit error rate associated with radio frames communicated and, in response to the bit error rate, can activate the technique for altering the manner in which the radio frames are communicated. The broadcast device can also monitor a received signal level associated with radio frames communicated and, in response to the received signal level, can activate the technique for altering the manner in which the radio frames are communicated. The technique can alter error correction coding, spectrum spreading, power level, data transmission rate, or modulation scheme utilized for transmitting the radio frames. The packet formatting apparatus includes an adaptive countermeasures apparatus having a plurality of selectively active paths, each path implementing a selected technique for altering the manner in which the radio frames are communicated.

Adaptive countermeasures for wireless communication of fast ethernet data packages

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Cupertino, CA, United States of America

Moshe Nattiv