Identifying remote units in a wireless distribution system (WDS) based on assigned unique temporal delay patterns
First Claim
1. A wireless distribution system (WDS), comprising:
- a plurality of signal paths;
a plurality of remote units, each remote unit among the plurality of remote units communicatively coupled to a respective signal path among the plurality of signal paths;
a central unit configured to communicate a respective communications signal among a plurality of communications signals to each remote unit among the plurality of remote units in the respective signal path communicatively coupled to the remote unit;
a plurality of delay elements disposed in the plurality of signal paths, respectively, wherein each delay element among the plurality of delay elements is configured to digitally delay the respective communications signal communicated in the respective signal path according to a respective unique temporal delay pattern among a plurality of unique temporal delay patterns assigned to a respective remote unit among the plurality of remote units communicatively coupled to the respective signal path to provide a delayed communications signal in the respective signal path; and
a remote unit identification system, comprising;
a controller configured to assign the plurality of unique temporal delay patterns to the plurality of remote units in the WDS; and
a determination unit configured to;
for at least one delayed communications signal provided in at least one signal path among the plurality of signal paths;
determine a unique temporal delay pattern associated with the at least one delayed communications signal; and
identify a remote unit among the plurality of remote units communicatively coupled to the at least one signal path based on the unique temporal delay pattern.
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Accused Products
Abstract
Embodiments of the disclosure relate to identifying remote units in a wireless distribution system (WDS) based on assigned unique temporal delay patterns. The WDS includes a plurality of remote units configured to communicate communications signals in signal paths. Each of the signal paths is assigned a unique temporal delay pattern. The communications signals are digitally delayed by respective delay elements based on the plurality of unique temporal delay patterns to provide delayed communications signals. A remote unit identification system analyzes a delayed communications signal to determine a respective temporal delay pattern associated within the delayed communication signal. By uniquely identifying a remote unit from which a delayed communication signal is communicated, it is possible to determine the locations client devices in the WDS, thus enabling a variety of location-based services and optimizations in the WDS.
15 Citations
19 Claims
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1. A wireless distribution system (WDS), comprising:
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a plurality of signal paths; a plurality of remote units, each remote unit among the plurality of remote units communicatively coupled to a respective signal path among the plurality of signal paths; a central unit configured to communicate a respective communications signal among a plurality of communications signals to each remote unit among the plurality of remote units in the respective signal path communicatively coupled to the remote unit; a plurality of delay elements disposed in the plurality of signal paths, respectively, wherein each delay element among the plurality of delay elements is configured to digitally delay the respective communications signal communicated in the respective signal path according to a respective unique temporal delay pattern among a plurality of unique temporal delay patterns assigned to a respective remote unit among the plurality of remote units communicatively coupled to the respective signal path to provide a delayed communications signal in the respective signal path; and a remote unit identification system, comprising; a controller configured to assign the plurality of unique temporal delay patterns to the plurality of remote units in the WDS; and a determination unit configured to; for at least one delayed communications signal provided in at least one signal path among the plurality of signal paths; determine a unique temporal delay pattern associated with the at least one delayed communications signal; and identify a remote unit among the plurality of remote units communicatively coupled to the at least one signal path based on the unique temporal delay pattern. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for identifying a client device in a wireless distribution system (WDS), comprising:
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receiving an identification of the client device; logically organizing a plurality of remote units in the WDS into a first remote unit group and a second remote unit group; and for each remote unit group among the first remote unit group and the second remote unit group; assigning one or more unique temporal delay patterns to one or more remote units in the remote unit group, respectively; delaying one or more communications signals communicated with the one or more remote units in the remote unit group based on the one or more unique temporal delay patterns, respectively; analyzing a call report to determine whether a timing advance (TA) corresponding to the client device changes in response to delaying the one or more communications signals based on the one or more unique temporal delay patterns; and if the TA of the client device has changed; if the remote unit group comprises only one remote unit, reporting an identification of the remote unit in the remote unit group; and if the remote unit group comprises more than one remote unit, logically organizing the remote units in the remote unit group into the first remote unit group and the second remote unit group. - View Dependent Claims (17, 18, 19)
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Specification