Signal enhancement through diversity
AssigneeADC Telecommunications, Inc.
InventorsDouglas Weaver, Santosh Sonbarse, William Mitchell, Michael Hermel, Donald Bauman, Jerry Toms
Life of this patent
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Abstract
Methods and systems for improving signal quality using diversity are provided. Two or more radio antennas are adapted to receive radio signals from wireless devices. One or more servers are adapted to receive two or more data streams, wherein each data stream is a digital representation of radio signals received by one radio antenna of the two or more radio antennas. Each data stream of the two or more data streams is received by a call processing software module through independent reverse link paths.
Claims28
A communications system, the system comprising:
- two or more radio antennas adapted to receive radio signals from one or more wireless devices;
- one or more servers adapted to receive two or more data streams, wherein each data stream is a digital representation of radio signals received by one of the two or more radio antennas;
- and
- a call processing software module, wherein each data stream of the two or more data streams is received by the call processing software module through independent reverse link paths.
A radio head interface module for a software defined radio, the module comprising:
- one or more reverse logical channels, each reverse logical channel including:
- a receive buffer;
- a receive engine;
- and
- a digital downconverter adapted to receive a data stream representing radio signals received by a first radio antenna,
- the receive engine adapted to transfer a data stream from the digital downconverter to the receive buffer, the receive buffer adapted to store the data stream as a page of data samples, the receive buffer further adapted to output the page of data samples;
- and
- one or more diversity channels, each diversity channel including:
- a receive buffer;
- a receive engine;
- and
- a digital downconverter adapted to receive a data stream representing radio signals received by a second radio antenna,
- the receive engine adapted to transfer a data stream from the digital downconverter to the receive buffer, the receive buffer adapted to store the data stream as a page of data samples, the receive buffer further adapted to output the page of data samples.
A method for improving signal quality, the method comprising:
- receiving radio signals at two or more radio antennas;
- and
- communicating two or more data streams representing the radio signals through independent reverse link paths to a call processing software module.
A computer-readable medium having computer-executable instructions for performing a method for improving signal quality for a software defined radio, the method comprising:
- receiving two or more data streams of complex RF samples representing radio signals through independent reverse link paths;
- and
- choosing one data stream of the two or more data streams based on signal quality criteria.
A communication system, the system comprising:
- means for receiving radio signals at two or more locations;
- means for digitally modulating and demodulating waveforms;
- and
- means for communicating two or more data streams representing the radio signals through independent reverse link paths.
Dependencies are inferred from the claim text.