US 7,626,920 B2 · Fixed OFDM wireless MAN utilizing CPE having internal antenna

Abstract

A fixed wireless access system generally comprises a consumer premise equipment (CPE) unit, that is connected via an Ethernet interface to a personal computer or local area network, and a base station unit that is connected via an Ethernet interface to a network. As such, the CPE unit is preferably easily user-installed while the base station unit is preferably tower-mounted within a 1-5 mile range of the CPE unit. Both the CPE unit and base station unit preferably incorporate an integrated data transceiver/switch that enables a radio frequency air link operating in the 2.5-2.686 GHz range. Orthogonal frequency division multiplexing is used in the uplink and downlink transmissions between CPE units and base station units.

Claims16

Dependent claims

A wireless communication system, comprising:

a first transceiver positioned at a base station unit and a second transceiver positioned at a user location remote from the base station unit, wherein said first and second transceivers communicate over a radio frequency air link permitting both uplink transmissions from the user location to the base station unit and downlink transmissions from the base station unit to the user location, that utilize orthogonal frequency division multiplexing (OFDM) modulation and up link and downlink frames that each comprises a plurality of channel slots, between said first and second transceivers, and wherein said downlink transmission comprises a message packet that fully occupies an allocated downlink channel slot and said uplink transmission comprises a message packet that does not fully occupy an allocated downlink channel slot.

Dependencies are inferred from the claim text.

Fixed OFDM wireless MAN utilizing CPE having internal antenna

Life of this patent

Fixed OFDM wireless MAN utilizing CPE having internal antenna

Life of this patent

Abstract

Claims16