US 12,335,192 B2
User equipments, base stations and methods for multi-beam SRS transmission
Kazunari Yokomakura, Sakai (JP)
Assigned to SHARP KABUSHIKI KAISHA, Sakai (JP)
Appl. No. 17/912,853
Filed by SHARP KABUSHIKI KAISHA, Sakai (JP)
PCT Filed Jan. 20, 2021, PCT No. PCT/JP2021/001797
§ 371(c)(1), (2) Date Sep. 20, 2022,
PCT Pub. No. WO2021/192549, PCT Pub. Date Sep. 30, 2021.
Claims priority of provisional application 63/000,827, filed on Mar. 27, 2020.
Prior Publication US 2023/0188286 A1, Jun. 15, 2023
Int. Cl. H04L 5/00 (2006.01)
CPC H04L 5/0051 (2013.01) 5 Claims
OG exemplary drawing
 
1. A user equipment (UE) comprising:
receiving circuitry configured to receive:
first information including one reference signal resource index or two reference signal resource indices, and
second information including a sounding reference signal (SRS) resource; and
transmitting circuitry configured to transmit sounding reference signals, wherein
in a case that the first information includes the one reference signal index, a first SRS is transmitted in a slot, the first SRS being associated with a spatial domain transmission filter corresponding to the one reference signal index indicated in the first information,
in a case that the first information includes the two reference signal indices, another first SRS and a second SRS are transmitted,
the other first SRS is associated with a spatial domain transmission filter corresponding to a first reference signal index indicated in the first information,
the second SRS is associated with a spatial domain transmission filter corresponding to a second reference signal index indicated in the first information, and
the spatial domain transmission filter corresponding to the first reference signal index and the spatial domain transmission filter corresponding to the second reference signal index are indicated by downlink control information (DCI).