Supporting analog repeater with beam sweep
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a repeater may steer a narrow beam in a plurality of directions in a time sequence according to a beam sweep pattern, and retransmit one or more communications between a base station and one or more user equipments (UEs) using at least the narrow beam in the beam sweep pattern. A base station may determine a beam sweep pattern of the repeater based at least in part on feedback from the UEs. Numerous other aspects are provided.
1. A repeater for wireless communication, comprising:
a memory; and
one or more processors, coupled to the memory, configured to:
steer a narrow beam in a plurality of beam directions in a time sequence according to a beam sweep pattern comprising amplifying a signal, from an antenna array of the repeater, in a first beam direction of the plurality of beam directions for a first period of time of the time sequence, wherein at least one of:
the first period of time and a second period of time do not overlap,
the second period of time being associated with amplifying the signal in a second beam direction of the plurality of beam directions for a second period of time of the time sequence, or
the first period of time is equal to or greater than a periodicity of reference signals for beam failure detection; and
retransmit one or more communications between a network node and one or more user equipments (UEs) using at least the narrow beam in the beam sweep pattern,
wherein the repeater is an analog repeater that does not comprise a digital signal processing chain.
2. The repeater of claim 1 , wherein the one or more processors, to retransmit the one or more communications, are configured to retransmit the one or more communications in a millimeter wave frequency band.
3. The repeater of claim 1 , wherein the beam sweep pattern is independent of network node control.
4. The repeater of claim 1 , wherein the beam sweeping pattern further comprises amplifying the signal in the second beam direction for the second period of time.
5. The repeater of claim 1 , wherein the first period of time and the second period of time do not overlap.
6. The repeater of claim 1 , wherein the first period of time is equal to or greater than the periodicity of reference signals for beam failure detection.
7. The repeater of claim 1 , wherein the beam sweep pattern includes a quantity of beam positions that is fewer than a threshold quantity of beam failure instances to indicate beam failure detection.
8. The repeater of claim 1 , wherein the beam sweep pattern is based at least in part on a quantity of the one or more UEs in one or more respective beam directions of the plurality of beam directions at one or more respective times of the time sequence.
9. The repeater of claim 1 , wherein the one or more processors are configured to configure the beam sweep pattern based at least in part on information received from the network node regarding a distribution of the one or more UEs.
10. The repeater of claim 9 , wherein the information includes a configuration of the beam sweep pattern.
11. The repeater of claim 1 , wherein the one or more processors are further configured to receive a communication using at least the narrow beam in the beam sweep pattern.
12. The repeater of claim 1 , wherein the one or more processors are further configured to perform an initial transmission of the one or more communications to the network node on a different beam than the narrow beam in the beam sweep pattern.
13. A method of wireless communication performed by a repeater, comprising:
steering a narrow beam in a plurality of beam directions in a time sequence according to a beam sweep pattern comprising amplifying a signal, from an antenna array of the repeater, in a first beam direction of the plurality of beam directions for a first period of time of the time sequence, wherein at least one of:
the first period of time and a second period of time do not overlap,
the second period of time being associated with amplifying the signal in a second beam direction of the plurality of beam directions for a second period of time of the time sequence, or
the first period of time is equal to or greater than a periodicity of reference signals for beam failure detection; and
retransmitting one or more communications between a network node and one or more user equipments (UEs) using at least the narrow beam in the beam sweep pattern,
wherein the repeater is an analog repeater that does not comprise a digital signal processing chain.
14. The method of claim 13 , wherein the beam sweep pattern is independent of network node control.
15. The method of claim 13 , wherein the beam sweeping pattern further comprises amplifying the signal in the second beam direction for the second period of time.
16. The method of claim 13 , wherein the first period of time and the second period of time do not overlap.
17. The method of claim 13 , wherein the first period of time is equal to or greater than the periodicity of reference signals for beam failure detection.
18. The method of claim 13 , wherein the beam sweep pattern includes a quantity of beams that is fewer than a threshold quantity of beam failure instances to indicate beam failure detection.
19. The method of claim 13 , wherein the beam sweep pattern is based at least in part on a quantity of the one or more UEs in one or more respective beam directions of the plurality of beam directions at one or more respective times of the time sequence.
20. A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising:
one or more instructions that, when executed by one or more processors of a repeater, cause the repeater to:
steer a narrow beam in a plurality of beam directions in a time sequence according to a beam sweep pattern comprising amplifying a signal, from an antenna array of the repeater, in a first beam direction of the plurality of beam directions for a first period of time of the time sequence, wherein at least one of:
the first period of time and a second period of time do not overlap,
the second period of time being associated with amplifying the signal in a second beam direction of the plurality of beam directions for a second period of time of the time sequence, or
the first period of time is equal to or greater than a periodicity of reference signals for beam failure detection; and
retransmit one or more communications between a network node and one or more user equipments (UEs) using at least the narrow beam in the beam sweep pattern,
wherein the repeater is an analog repeater that does not comprise a digital signal processing.
21. The non-transitory computer-readable medium of claim 20 , wherein the repeater is an analog repeater.
22. The non-transitory computer-readable medium of claim 20 , wherein the one or more instructions, that cause the repeater to retransmit the one or more communications, cause the repeater to retransmit the one or more communications in a millimeter wave frequency band.
23. The non-transitory computer-readable medium of claim 20 , wherein the beam sweep pattern is independent of network node control.
24. The non-transitory computer-readable medium of claim 20 , wherein the beam sweep pattern further comprising amplifying the signal in the second beam direction for the second period of time.
25. The non-transitory computer-readable medium of claim 20 , wherein the beam sweep pattern includes a quantity of beams that is fewer than a threshold quantity of beam failure instances to indicate beam failure detection.
26. An apparatus for wireless communication, comprising:
means for steering a narrow beam in a plurality of beam directions in a time sequence according to a beam sweep pattern comprising amplifying a signal, from an antenna array of the apparatus, in a first beam direction of the plurality of beam directions for a first period of time of the time sequence, wherein at least one of:
the first period of time and a second period of time do not overlap,
the second period of time being associated with amplifying the signal in a second beam direction of the plurality of beam directions for a second period of time of the time sequence, or
the first period of time is equal to or greater than a periodicity of reference signals for beam failure detection; and
means for retransmitting one or more communications between a network node and one or more user equipments (UEs) using at least the narrow beam in the beam sweep pattern,
wherein the apparatus is an analog apparatus that does not comprise a digital signal processing.
27. The apparatus of claim 26 , wherein the beam sweep pattern includes a quantity of beams that is fewer than a threshold quantity of beam failure instances to indicate beam failure detection.
28. The apparatus of claim 26 , wherein the means for retransmitting the one or more communications are configured for retransmitting the one or more communications in a millimeter wave frequency band.
29. The apparatus of claim 26 , wherein the beam sweep pattern is independent of network node control.
30. The apparatus of claim 26 , wherein beam sweeping pattern further comprises amplifying the signal in the second beam direction for the second period of time.