Patent ID: 11924142
Assignee: SONY GROUP CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. A wireless communication device comprising a control circuitry configured to:
receive at least one downlink control message from a communications network, the at least one downlink control message being indicative of a frequency density of uplink reference signals, the uplink reference signals being for an estimation of a radio channel between the wireless communication device and the communications network to coherently decode data signals encoding data of a uplink data transmission, the uplink reference signals and the data signals using the same precoding,
transmit the uplink reference signals on the radio channel using a time-frequency resource mapping set in accordance with the frequency density, the time-frequency resource mapping allocating time-frequency resource elements of a plurality of time-frequency resource elements of a time-frequency resource grid of the radio channel to the uplink reference signals, and
suspend said transmitting of the uplink reference signals upon activating a predefined coverage enhancement transmission mode for the uplink data transmission, wherein the predefined coverage enhancement transmission mode is characterized by a code rate of the data below a predefined threshold.