Wireless communications using multiple antenna arrays and a lens array
Methods, systems, and devices for wireless communications are described. A device may be configured to include an array of lenses along with multiple antenna arrays that each include a set of antenna elements. The antenna arrays may each support multiple beam directions, such as a respective beam direction for each lens of the array of lenses. If beams for multiple antenna arrays concurrently pass through the same lens, the lens may contribute to maintaining separation between the beams. Lenses may also contribute to the shaping of beams, and the use of multiple lenses may enhance a coverage area for beams transmitted or received by the antenna arrays.
1. A method for wireless communication, comprising:
steering a first beam between a first array of antenna elements and a first lens of an array of lenses, wherein the first array of antenna elements is one of a plurality of arrays of antenna elements; and
steering, concurrently with the steering of the first beam, a second beam between the first array of antenna elements and a second lens of the array of lenses, wherein the second beam is different than the first beam.
2. The method of claim 1 , further comprising:
steering a third beam between a second array of antenna elements and the first lens, wherein the second array of antenna elements is another of the plurality of arrays of antenna elements.
3. The method of claim 2 , wherein:
the first beam is steered between the first array of antenna elements and the first lens concurrent with the third beam being steered between the second array of antenna elements and the first lens.
4. The method of claim 3 , further comprising:
communicating with a first user equipment (UE) via the first beam; and
communicating with the first UE via the second beam.
5. The method of claim 2 , further comprising:
communicating with a user equipment (UE) via the first beam;
identifying a movement of the UE; and
communicating with the UE, based at least in part on the movement of the UE, via the third beam after communicating with the UE via the first beam.
6. The method of claim 5 , further comprising:
identifying a second movement of the UE; and
communicating with the UE, based at least in part on the second movement of the UE, via the second beam after communicating with the UE via the third beam.
7. The method of claim 1 , wherein:
the first beam is steered between the first array of antenna elements and the first lens based at least in part on a first position of a first user equipment (UE), wherein the second beam is steered between the first array of antenna elements and the second lens based at least in part on a second position of a second UE, and wherein the first position is different than the second position.
8. The method of claim 7 , further comprising:
communicating with a first user equipment (UE) via the first beam; and
communicating with a second UE via the second beam.
9. The method of claim 1 , further comprising:
communicating, during a first time period, via the first beam using a first quantity of antenna elements within the first array of antenna elements; and
communicating, during a second time period, via a fourth beam using a second quantity of antenna elements within the first array of antenna elements.
10. The method of claim 9 , further comprising:
identifying, between the first time period and the second time period, a change in target transmit power associated with the first array of antenna elements, wherein changing from using the first quantity of antenna elements to using the second quantity of antenna elements is based at least in part on the change in target transmit power.
11. The method of claim 9 , further comprising:
changing from using the first quantity of antenna elements to using the second quantity of antenna elements based at least in part on deactivating a first antenna element and a second antenna element respectively disposed at a first edge and a second edge of the first array of antenna elements; or
changing from using the first quantity of antenna elements to using the second quantity of antenna elements based at least in part on deactivating a first subset of antenna elements that is interleaved with a second subset of antenna elements within the first array of antenna elements, wherein the second quantity of antenna elements comprises the second subset of antenna elements.
12. The method of claim 1 , wherein a distance between the first array of antenna elements and each lens of the array of lenses is greater than a far field length for the first array of antenna elements.
13. The method of claim 1 , wherein:
each lens of the array of lenses has a respective diameter; and
a width of the first array of antenna elements is smaller than the respective diameter of each lens of the array of lenses.
14. The method of claim 1 , wherein:
the array of lenses comprises a two-dimensional array of lenses;
the first lens and the second lens are aligned along a first dimension; and
the first lens and a third lens of the array of lenses are aligned along a second dimension.
15. An apparatus for wireless communication, comprising:
one or more memories storing processor-executable code; and
one or more processors coupled with the one or more memories and individually or collectively operable to execute the code to cause the apparatus to:
steer a first beam between a first array of antenna elements and a first lens of an array of lenses, wherein the first array of antenna elements is one of a plurality of arrays of antenna elements; and
steer, concurrently with first beam being steered, a second beam between the first array of antenna elements and a second lens of the array of lenses, wherein the second beam is different than the first beam.
16. The apparatus of claim 15 , wherein the one or more processors are individually or collectively further operable to execute the code to cause the apparatus to:
steer a third beam between a second array of antenna elements and the first lens, wherein the second array of antenna elements is another of the plurality of arrays of antenna elements.
17. The apparatus of claim 16 , wherein the one or more processors are individually or collectively further operable to execute the code to cause the apparatus to:
steer the first beam between the first array of antenna elements and the first lens concurrent with the third beam being steered between the second array of antenna elements and the first lens.
18. The apparatus of claim 15 , wherein the one or more processors are individually or collectively further operable to execute the code to cause the apparatus to:
steer the first beam between the first array of antenna elements and the first lens based at least in part on a first position of a first user equipment (UE); and
steer the second beam between the first array of antenna elements and the second lens based at least in part on a second position of a second UE, wherein the first position is different than the second position.
19. The apparatus of claim 18 , wherein the one or more processors are individually or collectively further operable to execute the code to cause the apparatus to:
communicate with a first user equipment (UE) via the first beam; and
communicate with a second UE via the second beam.
20. An apparatus for wireless communication, comprising:
means for steering a first beam between a first array of antenna elements and a first lens of an array of lenses, wherein the first array of antenna elements is one of a plurality of arrays of antenna elements; and
means for steering, concurrently with the steering of the first beam, a second beam between the first array of antenna elements and a second lens of the array of lenses, wherein the second beam is different than the first beam.