Hybrid beam former
First Claim
1. An apparatus for wireless communications, comprising:
- a plurality of block circuits, wherein each one of the plurality of block circuits is configured to receive a respective plurality of signals from a respective subset of antenna elements of an antenna array, and each one of the plurality of block circuits comprises;
a respective plurality of phase shifters configured to shift phases of the respective plurality of signals to obtain a respective plurality of phase-shifted signals; and
a respective combiner configured to combine the respective plurality of phase-shifted signals into a respective combined signal;
a plurality of time-delay elements configured to delay the combined signals to obtain a plurality of delayed combined signals; and
a combiner configured to combine the plurality of delayed combined signals into a total combined signal.
1 Assignment
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Accused Products
Abstract
In certain aspects of the present disclosure, an apparatus for wireless communications is provided. The apparatus comprises a plurality of block circuits, wherein each one of the plurality of block circuits is configured to receive a respective plurality of signals from a respective subset of antenna elements of an antenna array. Each one of the plurality of block circuits comprises a respective plurality of phase shifters configured to shift phases of the respective plurality of signals to obtain a respective plurality of phase-shifted signals, and a respective combiner configured to combine the respective plurality of phase-shifted signals into a respective combined signal. The apparatus also comprises a plurality of time-delay elements configured to delay the combined signals to obtain a plurality of delayed combined signals, and a combiner configured to combine the plurality of delayed combined signals into a total combined signal.
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Citations
12 Claims
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1. An apparatus for wireless communications, comprising:
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a plurality of block circuits, wherein each one of the plurality of block circuits is configured to receive a respective plurality of signals from a respective subset of antenna elements of an antenna array, and each one of the plurality of block circuits comprises; a respective plurality of phase shifters configured to shift phases of the respective plurality of signals to obtain a respective plurality of phase-shifted signals; and a respective combiner configured to combine the respective plurality of phase-shifted signals into a respective combined signal; a plurality of time-delay elements configured to delay the combined signals to obtain a plurality of delayed combined signals; and a combiner configured to combine the plurality of delayed combined signals into a total combined signal. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A wireless node, comprising:
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an antenna array comprising antenna elements; a plurality of block circuits, wherein each one of the plurality of block circuits is configured to receive a respective plurality of signals from another wireless node via a respective subset of the antenna elements of the antenna array, and each one of the plurality of block circuits comprises; a respective plurality of phase shifters configured to shift phases of the respective plurality of signals to obtain a respective plurality of phase-shifted signals; and a respective combiner configured to combine the respective plurality of phase-shifted signals into a respective combined signal; a plurality of time-delay elements configured to delay the combined signals to obtain a plurality of delayed combined signals; and a combiner configured to combine the plurality of delayed combined signals into a total combined signal.
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8. A method for wireless communications, comprising:
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for each one of a plurality of subsets of antenna elements of an antenna array, receiving a respective plurality of signals from the respective one of the plurality of subsets of the antenna elements of the antenna array; shifting phases of the respective plurality of signals to obtain a respective plurality of phase-shifted signals; and combining the respective plurality of phase-shifted signals into a respective combined signal; delaying the combined signals to obtain a plurality of delayed combined signals; and combining the plurality of delayed combined signals into a total combined signal. - View Dependent Claims (9, 10, 11, 12)
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Specification