Identifying remote radio units in a communication system
First Claim
1. A method for identifying a remote radio unit in a communication system comprising a plurality of remote radio units communicating with a central unit and pattern providing means for providing information about dedicated gain change patterns of the plurality of remote radio units, the method comprising:
- receiving from a station a signal by a remote radio unit of a plurality of remote radio units;
changing a gain of at least one remote radio unit according to a dedicated gain change pattern of said at least one remote radio unit;
detecting a gain change pattern for the received signal; and
identifying the remote radio unit by comparing the detected gain change pattern with information about dedicated gain change patterns of the plurality of remote radio units provided by a pattern providing means.
2 Assignments
0 Petitions
Accused Products
Abstract
A method for identifying a remote radio unit in a communication system comprises a plurality of remote radio units communicating with a central unit and pattern providing means for providing information about dedicated gain change patterns of the remote radio units. The method comprises receiving a signal from a station by a remote radio unit of the plurality of remote radio units. The method also includes changing the gain of at least one remote radio unit according to a dedicated gain change pattern of the at least one remote radio unit. The method also includes detecting a gain change pattern for the received signal and identifying the remote radio unit by comparing the detected gain change pattern with information about dedicated gain change patterns of the remote radio units provided by the pattern providing means. An example may be locating a station, such as a user equipment, in a distributed radio system.
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Citations
24 Claims
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1. A method for identifying a remote radio unit in a communication system comprising a plurality of remote radio units communicating with a central unit and pattern providing means for providing information about dedicated gain change patterns of the plurality of remote radio units, the method comprising:
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receiving from a station a signal by a remote radio unit of a plurality of remote radio units; changing a gain of at least one remote radio unit according to a dedicated gain change pattern of said at least one remote radio unit; detecting a gain change pattern for the received signal; and identifying the remote radio unit by comparing the detected gain change pattern with information about dedicated gain change patterns of the plurality of remote radio units provided by a pattern providing means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for locating a station in a communication system comprising a plurality of remote radio units communicating with a central unit, the method comprising:
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identifying a remote radio unit receiving a signal from a station by; receiving from a station a signal by a remote radio unit of a plurality of remote radio units; changing a gain of at least one remote radio unit according to a dedicated gain change pattern of said at least one remote radio unit; detecting a gain change pattern for the received signal; and identifying the remote radio unit by comparing the detected gain change pattern with information about dedicated gain change patterns of the plurality of remote radio units provided by a pattern providing means.
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13. A method for locating a user equipment in a communication system comprising a plurality of remote radio units communicating with a central unit, the method comprising:
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receiving a signal from a user equipment by at least one remote radio unit of a plurality of remote radio units; changing a gain of the at least one remote radio unit according to a dedicated gain change pattern of said at least one remote radio unit; detecting a gain change pattern for the received signal; identifying the at least one remote radio unit by comparing the detected gain change pattern with information about dedicated gain change patterns of the plurality of remote radio units provided by a pattern providing means; and identifying a remote radio unit closest to the user equipment from the at least one remote radio unit. - View Dependent Claims (14)
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15. A communication system comprising:
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a plurality of remote radio units communicating with a central unit; pattern providing means for providing information about dedicated gain change patterns of the plurality of remote radio units; receiving means for receiving a signal from a station in the plurality of remote radio units; changing means for changing a gain of at least one remote radio unit according to a dedicated gain change pattern of said at least one remote radio unit; detecting means for detecting a gain change pattern for the received signal; and identifying means identifying a remote radio unit by comparing the detected gain change pattern with information about dedicated gain change patterns of the plurality of remote radio units provided by the pattern providing means. - View Dependent Claims (16, 17, 18)
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19. A central unit for a communication system comprising a plurality of remote radio units communicating with the central unit, the central unit configured to
identify a remote radio unit receiving a signal from a station sending the signal by comparing a detected gain change pattern with information about dedicated gain change patterns of the plurality of remote radio units.
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22. A remote radio unit for a communication system comprising a plurality of remote radio units communicating with a central unit, the remote radio unit configured to:
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receive a signal from a station; enable changing a gain of a remote radio unit according to a dedicated gain change pattern of the remote radio unit; and provide information of the received signal having the gain changed by changing means, the information provided with a central unit for identifying the remote radio unit by comparing a detected gain change pattern of the received signal having the gain changed by changing means with information about dedicated gain change patterns of the plurality of remote radio units. - View Dependent Claims (23)
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24. A communication system comprising a plurality of remote radio units communicating with a central unit and a pattern providing means for providing information about dedicated gain change patterns of the plurality of remote radio units, the system configured to:
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receive from a station a signal by a remote radio unit of a plurality of remote radio units; change a gain of at least one remote radio unit according to a dedicated gain change pattern of said at least one remote radio unit; detect a gain change pattern for the received signal; and identify the remote radio unit by comparing the detected gain change pattern with information about dedicated gain change patterns of the plurality of remote radio units provided by the pattern providing means.
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Specification