A method (1500, 1600) performed by a user equipment, UE, for wireless communication, comprising: receiving (905, 1605) an indication of a port configuration for receiving a demodulation reference signal; receiving (910, 1010, 1505, 1610) sidelink control information scheduling resources (212, 215, 305, 310) for a sidelink data transmission spanning a set of tones (225, 412, 520, 625, 715, 815) and indicating a demodulation reference signal pattern; identifying (915, 1510, 1615) that each tone of the set of tones is configured to carry a demodulation reference signal for at least one symbol (230, 407, 525, 630, 720, 820) of the demodulation reference signal pattern; wherein the sidelink control information comprises a parameter indicating an aspect of the port configuration for the UE to update for receiving the demodulation reference signal; updating (920, 1620) the aspect of the port configuration, wherein the port configuration comprises a first port and a second port, and wherein updating the aspect comprises one or more of: a) combining the first port and the second port to form a virtual port, wherein the demodulation reference signal is received over the virtual port; b) determining to refrain from performing code division multiplexing on the first port with a third port when receiving the demodulation reference signal over the first port, wherein the demodulation signal is received over the first port; and c) determining to use a single one of a first comb configuration corresponding to the first port or a second comb configuration corresponding to the second port to receive the demodulation reference signal; receiving (925, 1515, 1625) the sidelink data transmission based at least in part on the at least one symbol of the demodulation reference signal pattern carrying the demodulation reference signal for each tone of the set of tones; and receiving (930, 1630) the demodulation reference signal based at least in part on the updated aspect. receiving (905, 1605) an indication of a port configuration for receiving a demodulation reference signal; receiving (910, 1010, 1505, 1610) sidelink control information scheduling resources (212, 215, 305, 310) for a sidelink data transmission spanning a set of tones (225, 412, 520, 625, 715, 815) and indicating a demodulation reference signal pattern; identifying (915, 1510, 1615) that each tone of the set of tones is configured to carry a demodulation reference signal for at least one symbol (230, 407, 525, 630, 720, 820) of the demodulation reference signal pattern; wherein the sidelink control information comprises a parameter indicating an aspect of the port configuration for the UE to update for receiving the demodulation reference signal; updating (920, 1620) the aspect of the port configuration, wherein the port configuration comprises a first port and a second port, and wherein updating the aspect comprises one or more of: a) combining the first port and the second port to form a virtual port, wherein the demodulation reference signal is received over the virtual port; b) determining to refrain from performing code division multiplexing on the first port with a third port when receiving the demodulation reference signal over the first port, wherein the demodulation signal is received over the first port; and c) determining to use a single one of a first comb configuration corresponding to the first port or a second comb configuration corresponding to the second port to receive the demodulation reference signal; a) combining the first port and the second port to form a virtual port, wherein the demodulation reference signal is received over the virtual port; b) determining to refrain from performing code division multiplexing on the first port with a third port when receiving the demodulation reference signal over the first port, wherein the demodulation signal is received over the first port; and c) determining to use a single one of a first comb configuration corresponding to the first port or a second comb configuration corresponding to the second port to receive the demodulation reference signal; receiving (925, 1515, 1625) the sidelink data transmission based at least in part on the at least one symbol of the demodulation reference signal pattern carrying the demodulation reference signal for each tone of the set of tones; and receiving (930, 1630) the demodulation reference signal based at least in part on the updated aspect.