Abstract: A wireless RF data transmission system has at least one base station transmitting control information on a control channel and high speed data on at least one data channel. At least one subscriber station receives the control information and data channels, adjusting a modulation and/or coding of reception of the data in response to the control information. Preferably, the control information is transmitted using a more robust modulation, such as QPSK, than used to transmit the data, which is preferably transmitted using either 16, 64 or 256 QAM. Additionally, timing or header information for the data may be included on the control channel.

Abstract: A wireless RF data transmission system has at least one base station transmitting control information on a control channel and high speed data on at least one data channel. At least one subscriber station receives the control information and data channels, adjusting a modulation and/or coding of reception of the data in response to the control information. Preferably, the control information is transmitted using a more robust modulation, such as QPSK, than used to transmit the data, which is preferably transmitted using either 16, 64 or 256 QAM. Additionally, timing or header information for the date may be included on the control channel.

Abstract: A wireless RF data transmission system has at least one base station transmitting control information on a control channel and high speed data on at least one data channel. At least one subscriber station receives the control information and data channels, adjusting a modulation and/or coding of reception of the data in response to the control information. Preferably, the control information is transmitted using a more robust modulation, such as QPSK, than used to transmit the data, which is preferably transmitted using either 16, 64 or 256 QAM. Additionally, timing or header information for the date may be included on the control channel.

Abstract: A wireless RF data transmission system has at least one base station transmitting control information on a control channel and high speed data on at least one data channel. At least one subscriber station receives the control information and data channels, adjusting a modulation and/or coding of reception of the data in response to the control information. Preferably, the control information is transmitted using a more robust modulation, such as QPSK, than used to transmit the data, which is preferably transmitted using either 16, 64 or 256 QAM. Additionally, timing or header information for the data may be included on the control channel.

Abstract: A wireless RF data transmission system has at least one base station transmitting control information on a control channel and high speed data on at least one data channel. At least one subscriber station receives the control information and data channels, adjusting a modulation and/or coding of reception of the data in response to the control information. Preferably, the control information is transmitted using a more robust modulation, such as QPSK, than used to transmit the data, which is preferably transmitted using either 16, 64 or 256 QAM. Additionally, timing or header information for the data may be included on the control channel.

Abstract: A wireless RF data transmission system subscriber station has a fixed, overhead bracket secured, spindle. An open sided housing is rotatably mounted to the spindle. The housing has a finned heat sink and is interiorly coated with heat absorbing paint. Emissions shielding enclosures secured within the housing house an RF transceiver. An antenna array mounted to an enclosure is operatively connected to the transceiver through the enclosures for communicating RF data signals. An A/D-D/A board is mounted to an enclosure on an opposite side from the array. A radome is secured over a face of the array, sealed to the housing by a carbon impregnated gasket. An electric motor mounted within the housing and operatively engaging the spindle is controlled by antenna aiming logic for aiming the station and its array. An orifice sealed with a waterproof, breathable membrane allows moisture to escape the housing and prevents moisture infiltration.

Abstract: A wireless RF data transmission system subscriber station has a fixed, overhead bracket secured, spindle. An open sided housing is rotatably mounted to the spindle. The housing has a finned heat sink and is interiorly coated with heat absorbing paint. Emissions shielding enclosures secured within the housing house an RF transceiver. An antenna array mounted to an enclosure is operatively connected to the transceiver through the enclosures for communicating RF data signals. An A/D-D/A board is mounted to an enclosure on an opposite side from the array. A radome is secured over a face of the array, sealed to the housing by a carbon impregnated gasket. An electric motor mounted within the housing and operatively engaging the spindle is controlled by antenna aiming logic for aiming the station and its array. An orifice sealed with a waterproof, breathable membrane allows moisture to escape the housing and prevents moisture infiltration.

Abstract: Systems and methods adapted to optimize data throughput in wireless communications network are shown and described. In the preferred embodiment multiple antenna beam base stations are utilized to provide reuse of communications channels. Reuse of the communications channels by the base stations is preferably optimized by considering mutually exclusive antenna beam pairs and antenna beam pairs providing reduced signal quality. A preferred embodiment control channel is taught which provides for the initial and subsequent identification and use of a most preferred antenna beam for establishing communications. Alternative embodiments of the invention utilize multiple antenna beam remote stations.

Abstract: Systems and methods adapted to optimize data throughput in wireless communications network are shown and described. In the preferred embodiment multiple antenna beam base stations are utilized to provide reuse of communications channels. Reuse of the communications channels by the base stations is preferably optimized by considering mutually exclusive antenna beam pairs and antenna beam pairs providing reduced signal quality. A preferred embodiment control channel is taught which provides for the initial and subsequent identification and use of a most preferred antenna beam for establishing communications. Alternative embodiments of the invention utilize multiple antenna beam remote stations.

Abstract: A system for mitigating the effects of interference in an unlicensed RF band for point to point data transmissions comprises a multibeam antenna locating interference with transmission to and from data transmission subscribers. A scanner determines the frequency, bandwidth and any periodicity of the interference. Separate scanners can be used for each antenna beam. Nulls are generated in the data transmission antenna pattern in the direction of the interference during periods of interference. Communications with subscribers in a direction of the interference is carried out using a different channel or is scheduled around the interference occurrences. Alternatively, such subscribers are directed to establish data transmissions with an alternate hub antenna.

Abstract: A system and method providing narrow antenna beam polarity and/or angular diversity for subscriber stations in a point-to-multipoint RF data transmission system employs a subscriber multibeam antenna. Coangular pairs of antenna beams have orthogonal polarity and each pair is angularly diverse. The subscriber transceiver uses a plurality of inputs and at least one output. Polarization diversity for a subscriber is provided by employing one of the coangular pairs of antenna beams to receive corresponding polarization diverse signals from a hub. Angular diversity is provided by receiving transmissions on two angularly diverse beams from two hubs. At a hub the bit error rate of transmissions from a subscriber and/or signal levels of available frequencies with different polarizations are monitored and the optimal beam, frequency and polarization for transmissions from the subscriber are determined. Changes in frequency, beam or polarization for transmissions to the hub are communicated to the subscriber.

Abstract: A system and method are disclosed for improving trunking efficiency of a sectored cell by providing overlapping sectors. The disclosed invention teaches the use of multiple narrow beams composited to form a radiation pattern. Signals associated with each such narrow beam may be provided to inputs of a base station signal quality measuring device for assigning a mobile to a particular sector during call origination which inputs are associated with a particular sector of the radiation pattern. The number of narrow beam signals provided inputs associated with a particular sector defines the azimuthal width of that sector. By providing a same antenna beam signal to multiple sector inputs, overlapping sectors are defined.