Distributed antenna system for MIMO communications
First Claim
1. A method for determining placement of a plurality of antennas of a distributed antenna system for handling MIMO signals in an environment comprising:
- at a first location, simulating the communication of a first MIMO signal by a first remote unit over an air interface in the environment;
at a second location, simulating the communication of a second MIMO signal by a second remote unit over an air interface in the environment;
the first and second locations arranged within the environment to provide overlapping signal coverage of both the first MIMO signal and the second MIMO signal at a third location in the environment; and
with a device having at least one processor, receiving the MIMO signals and analyzing at least an imbalance of received power between the first and second MIMO signals within the environment at a third location in order to determine whether a desired capacity for MIMO communications with the system has been achieved at the third location.
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Accused Products
Abstract
A method and apparatus for determining placement of a plurality of antennas of a distributed antenna system for handling MIMO signals includes, at a first location, simulating the communication of a first MIMO signal by a first remote unit over an air interface in an environment and, at a second location, simulating the communication of a second MIMO signal by a second remote unit over an air interface in the environment. The first and second locations are arranged within the environment to provide overlapping signal coverage of both the first MIMO signal and the second MIMO signal at a third location in the environment. Analysis is made of at least an imbalance of received power between the first and second MIMO signals within the environment at a third location in order to determine whether a desired capacity for MIMO communications with the system has been achieved at the third location.
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Citations
20 Claims
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1. A method for determining placement of a plurality of antennas of a distributed antenna system for handling MIMO signals in an environment comprising:
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at a first location, simulating the communication of a first MIMO signal by a first remote unit over an air interface in the environment; at a second location, simulating the communication of a second MIMO signal by a second remote unit over an air interface in the environment; the first and second locations arranged within the environment to provide overlapping signal coverage of both the first MIMO signal and the second MIMO signal at a third location in the environment; and with a device having at least one processor, receiving the MIMO signals and analyzing at least an imbalance of received power between the first and second MIMO signals within the environment at a third location in order to determine whether a desired capacity for MIMO communications with the system has been achieved at the third location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus for determining placement of a plurality of antennas of a distributed antenna system for handling MIMO signals, comprising:
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circuitry for receiving a first MIMO signal from a first location over an air interface in an environment and determining the received power of the first MIMO signal; circuitry for receiving a second MIMO signal from a second location over an air interface in an environment and determining the received power of the second MIMO signal; the first location and the second location arranged within the environment to provide overlapping signal coverage of both the first MIMO signal and the second MIMO signal at a third location in the environment; at least one processor configured for analyzing at least an imbalance of received power between the first and second MIMO signals within the environment at the third location in order to determine whether a desired capacity for MIMO communications with the system has been achieved at the third location. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A distributed antenna system comprising:
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at least one master unit, the master unit configured for coupling with a multiple-input and multiple-output (MIMO) base station to receive a first MIMO signal and a second MIMO signal from the MIMO base station; a plurality of remote units coupled with the master unit, the remote units configured to receive the first MIMO signal and the second MIMO signal through the master unit; a first set of remote units receiving the first MIMO signal and configured for being positioned at various locations within an environment, the remote units of the first set configured for communicating the first MIMO signal over air interfaces in the environment; a second set of remote units receiving the second MIMO signal different from the first MIMO signal received by the first remote units, the second set of remote units configured for being positioned at various locations within the environment different from the locations of the remote units of the first set, the remote units of the second set configured for communicating the second MIMO signal over air interfaces in the environment; the first set of remote units and the second set of remote units arranged within the environment and configured to provide overlapping signal coverage of both the first MIMO signal and the second MIMO signal at a plurality of third locations in the environment; a device configured for receiving at least the first MIMO signal and the second MIMO signal and determining the received power of the first MIMO signal and the second MIMO signal in at least one of the third locations; the device further configured for analyzing at least an imbalance of received power between the first MIMO signal and the second MIMO signal within the environment at the third location in order to determine whether a desired capacity for MIMO communications with the system has been achieved at that third location. - View Dependent Claims (17, 18, 19, 20)
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Specification