Patent ID: 11968136
Assignee: QUALCOMM INCORPORATED
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. A transmitter user equipment (UE), comprising:
a memory;
at least one transceiver; and
one or more processors communicatively coupled to the memory and the at least one transceiver, the one or more processors, either alone or in combination, being configured to:
determine a first set of demodulation reference signal (DMRS) patterns for a first slot allocated for transmission over a sidelink between the transmitter UE and a receiver UE, wherein the first slot corresponds to a first slot format, and wherein the first set of DMRS patterns is associated with the first slot format based on
(i) presence or absence of orthogonal frequency-division multiplexing (OFDM) symbols for sidelink feedback specified by the first slot format, and
(ii) a subcarrier spacing (SCS), a frequency range, or both, of the sidelink;

transmit, via the at least one transceiver to the receiver UE, an index value indicating the one of the first set of DMRS patterns that is the first DMRS pattern; and
transmit, via the at least one transceiver to the receiver UE, DMRS in the first slot according to the first DMRS pattern,

wherein, in a case that the first set of DMRS patterns includes two different DMRS patterns, the index value is one of two different values that respectively represent the two different DMRS patterns included in the first set of DMRS patterns, and
wherein, in a case that the first set of DMRS patterns includes three different DMRS patterns, the index value is one of three different values that respectively represent the three different DMRS patterns included in the first set of DMRS patterns.