Channel aggregation digital beamforming
In an embodiment, an apparatus includes one or more electrical components. The one or more electrical components are configured to encode each data beam of a first plurality of data beams of a first channel to generate an encoded first plurality of data beams. The one or more electrical components are configured to encode each data beam of a second plurality of data beams of a second channel to generate an encoded second plurality of data beams. The one or more electrical components are configured to generate a combined channel comprising an aggregation of at least a portion of the encoded first plurality of data beams and at least a portion of the encoded second plurality of data beams.
1 . An apparatus comprising:
one or more electrical components configured to:
encode each data beam of a first plurality of data beams of a first channel to generate an encoded first plurality of data beams;
encode each data beam of a second plurality of data beams of a second channel to generate an encoded second plurality of data beams; and
generate a combined channel comprising an aggregation of at least a portion of the encoded first plurality of data beams and at least a portion of the encoded second plurality of data beams.
2 . The apparatus of claim 1 , further comprising a first digital mixer configured to shift a first central frequency associated with the first channel to a shifted first central frequency and a second digital mixer configured to shift a second central frequency associated with the second channel to a shifted second central frequency.
3 . The apparatus of claim 2 , wherein a third central frequency associated with the combined channel is between the shifted first central frequency and the shifted second central frequency.
4 . The apparatus of claim 2 , wherein the first digital mixer is configured to shift the first central frequency by Δf and the second digital mixer is configured to shift the second central frequency by −Δf.
5 . The apparatus of claim 1 , wherein the first plurality of data beams and the second plurality of data beams comprise 2N data beams, the one or more electrical components comprises 2N digital beamformers, wherein first N digital beamformers are associated with the first plurality of data beams and second N digital beamformers are associated with the second plurality of data beams, and further comprising:
a plurality of channel combiners electrically coupled to 2N digital beamformers, wherein the plurality of channel combiners comprises M channel combiners; and
a plurality of RF transmission sections electrically coupled to the plurality of channel combiners, wherein:
the plurality of RF transmission sections comprises M RF transmission sections;
the plurality of RF transmission sections is configured to generate M output signals; and
the plurality of RF transmission sections electrically couple to M antennas of a phased array antenna to provide the M output signals for transmission.
6 . The apparatus of claim 5 , wherein the M output signals each contain at least a portion of the encoded first plurality of data beams and the encoded second plurality of data beams.
7 . The apparatus of claim 1 , wherein:
the first channel has a first bandwidth, the second channel has a second bandwidth, and the combined channel has a third bandwidth; and
the third bandwidth is equal to the first bandwidth, the second bandwidth, or a sum of the first and second bandwidths.
8 . The apparatus of claim 1 , wherein:
the first channel has a first bandwidth, the second channel has a second bandwidth, and the combined channel has a third bandwidth; and
the third bandwidth is different from the first bandwidth, the second bandwidth, or a sum of the first and second bandwidths.
9 . The apparatus of claim 1 , wherein each data beam of the at least a portion of the encoded first plurality of data beams and the at least a portion of the encoded second plurality of data beams is located in a same frequency range of the combined channel.
10 . The apparatus of claim 1 , wherein:
each data beam of the at least a portion of the encoded first plurality of data beams is located in a first frequency range of the combined channel and each data beam of the at least a portion of the encoded second plurality of data beams is located in a second frequency range of the combined channel.
11 . A communication node of a communications system, the communication node comprising:
a plurality of antenna elements arranged in an antenna lattice; and
an integrated circuit (IC) chip comprising:
a channel aggregation section configured to:
encode each data beam of a first plurality of data beams of a first channel to generate an encoded first plurality of data beams;
encode each data beam of a second plurality of data beams of a second channel different from the first channel to generate an encoded second plurality of data beams;
generate a combined channel comprising an aggregation of at least a portion of the encoded first plurality of data beams and at least a portion of the encoded second plurality of data beams; and
generate an output signal to be provided to an antenna element of the plurality of antenna elements based on the combined channel.
12 . The communication node of claim 11 , further comprising a first digital mixer and a second digital mixer, wherein the first digital mixer is configured to shift a first central frequency associated with the first channel and the second digital mixer is configured to shift a second central frequency associated with the second channel.
13 . The communication node of claim 12 , wherein the first digital mixer is configured to shift the first central frequency by Δf and the second digital mixer is configured to shift the second central frequency by −Δf.
14 . The communication node of claim 11 , wherein the first plurality of data beams and the second plurality of data beams comprise 2N data beams and the channel aggregation section comprises 2N digital beamformers, wherein first N digital beamformers are associated with the first plurality of data beams and second N digital beamformers are associated with the second plurality of data beams, and further comprising:
a plurality of channel combiners electrically coupled to the channel aggregation section, wherein the plurality of channel combiners comprises M channel combiners; and
a plurality of RF transmission sections electrically coupled to the plurality of channel combiners, wherein:
the plurality of RF transmission sections comprises M RF transmission sections;
the plurality of RF transmission sections is configured to generate M output signals; and
the plurality of RF transmission sections electrically couple to M antenna elements of the plurality of antenna elements.
15 . The communication node of claim 14 , wherein the M output signals each contain at least a portion of the encoded first plurality of data beams and the encoded second plurality of data beams.
16 . The communication node of claim 11 , further comprising a plurality of IC chips, wherein the IC chip is included in the plurality of IC chips and each IC chip of the plurality of IC chips is configured to provide signals to be transmitted on a different subset of antenna elements of the plurality of antenna elements.
17 . The communication node of claim 11 , wherein the communication node comprises a satellite, a user terminal, a gateway, a repeater, or a communication node of a satellite communication system.
18 . The communication node of claim 11 , wherein:
the first channel has a first bandwidth, the second channel has a second bandwidth, and the combined channel has a third bandwidth; and
the third bandwidth is equal to the first bandwidth, the second bandwidth, or a sum of the first and second bandwidths.
19 . The communication node of claim 11 , wherein:
the first channel has a first bandwidth, the second channel has a second bandwidth, and the combined channel has a third bandwidth; and
the third bandwidth is different from the first bandwidth, the second bandwidth, or a sum of the first and second bandwidths.
20 . The communication node of claim 11 , wherein each data beam of the at least a portion of the encoded first plurality of data beams and the at least a portion of the encoded second plurality of data beams is located in a same frequency range of the combined channel.