Forward-path digital summation in digital radio frequency transport
First Claim
Patent Images
1. A distributed antenna switch comprising:
- a plurality of first interfaces, each of the plurality of first interfaces configured to receive a downlink serialized data stream from a different network interface across a different first digital communication link;
a first plurality of downlink selector/summer functions, each configurable to operate as at least one of a downlink selector and a downlink summer;
while operating as a downlink selector, any of the first plurality of downlink selector/summer functions are configured to generate an aggregate downlink serialized data stream by selecting and interleaving portions of at least two of the plurality of downlink serialized data streams into the aggregate downlink serialized data stream;
while operating as a downlink summer, any of the first plurality of downlink selector/summer functions are configured to generate the aggregate downlink serialized data stream by digitally summing data from timeslots of at least two of the plurality of downlink serialized data streams into the aggregate downlink serialized data stream; and
at least one second interface, the at least one second interface configured to communicate the aggregate downlink serialized data stream to a remote antenna unit over a second digital communication link.
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Abstract
A distributed antenna switch includes a plurality of first interfaces, each of the plurality of first interfaces configured to receive a downlink serialized data stream from a different network interface across a different first digital communication link; at least one second interface, the at least one second interface configured to communicate an aggregate downlink serialized data stream to a remote antenna unit over a second digital communication link; and wherein the distributed antenna switch is configured to aggregate the plurality of downlink serialized data streams from the different network interfaces into the aggregate downlink serialized data stream.
56 Citations
36 Claims
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1. A distributed antenna switch comprising:
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a plurality of first interfaces, each of the plurality of first interfaces configured to receive a downlink serialized data stream from a different network interface across a different first digital communication link; a first plurality of downlink selector/summer functions, each configurable to operate as at least one of a downlink selector and a downlink summer; while operating as a downlink selector, any of the first plurality of downlink selector/summer functions are configured to generate an aggregate downlink serialized data stream by selecting and interleaving portions of at least two of the plurality of downlink serialized data streams into the aggregate downlink serialized data stream; while operating as a downlink summer, any of the first plurality of downlink selector/summer functions are configured to generate the aggregate downlink serialized data stream by digitally summing data from timeslots of at least two of the plurality of downlink serialized data streams into the aggregate downlink serialized data stream; and at least one second interface, the at least one second interface configured to communicate the aggregate downlink serialized data stream to a remote antenna unit over a second digital communication link. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of aggregating serialized data streams in a distributed antenna switch, the method comprising:
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receiving a plurality of downlink serialized data streams from a first plurality of digital communication links; while operating any of a plurality of downlink selector/summer functions of the distributed antenna switch as a downlink selector, selecting and interleaving portions of at least two of the plurality of corresponding downlink serialized data streams from the different network interfaces into an aggregate downlink serialized data stream at the downlink selector/summer of the distributed antenna switch; while operating any of the plurality of downlink selector/summer functions of the distributed antenna switch as a downlink summer, digitally summing data from timeslots of at least two of the plurality of corresponding downlink serialized data streams into the aggregate downlink serialized data stream at the downlink selector/summer of the distributed antenna switch; and communicating the aggregate downlink serialized data stream to a remote antenna unit over a second digital communication link. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A distributed antenna switch comprising:
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a first interface configured to receive a first downlink serialized data stream from a first network interface across a first digital communication link; a second interface configured to receive a second downlink serialized data stream from a second network interface across a second digital communication link; a first selector/summer function, configurable to operate as at least one of a first downlink selector and a first downlink summer; while operating as a first downlink selector, the first selector/summer function is configured to generate a first aggregate downlink serialized data stream by selecting and interleaving portions of the first downlink serialized data stream and the second downlink serialized data stream into the first aggregate downlink serialized data stream; while operating as a first downlink summer, the first selector/summer function is configured to generate a first aggregate downlink serialized data stream by digitally summing data from timeslots of the first downlink serialized data stream and data from timeslots of the second downlink serialized data stream into the first aggregate downlink serialized data stream; a second selector/summer function, configurable to operate as at least one of a second downlink selector and a second downlink summer; while operating as a second downlink selector, the second selector/summer function is configured to generate a second aggregate downlink serialized data stream by selecting and interleaving portions of the first downlink serialized data stream and the second downlink serialized data stream into the second aggregate downlink serialized data stream; while operating as a second downlink summer, the second selector/summer function is configured to generate a second aggregate downlink serialized data stream by digitally summing data from timeslots of the first downlink serialized data stream and data from timeslots of the second downlink serialized data stream into the second aggregate downlink serialized data stream; and a third interface configured to communicate at least one of the first aggregate downlink serialized data stream and the second aggregate downlink serialized data stream to a remote antenna unit over a third digital communication link. - View Dependent Claims (36)
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Specification