This application discloses a DMRS indicating method, a DMRS receiving method, and an apparatus. The method includes: determining, by a transmit end from a plurality of groups of demodulation reference signal DMRS configuration information, DMRS configuration information corresponding to a current DMRS transmission scheme, and obtaining DMRS indication information based on the DMRS configuration information, where each group of DMRS configuration information includes a plurality of pieces of DMRS configuration information; and sending, by the transmit end, the DMRS indication information. The method and the apparatus provided in this application are implemented to match a plurality of scenarios in NR. This can satisfy a requirement for transmitting more layers of data, and can further reduce indication overheads.

The present disclosure relates to a communication technique of fusing a 5G communication system for supporting higher data transmission rate beyond a 4G system with an IoT technology and a system thereof. The system may be used for an intelligent service (for example, smart home, smart building, smart city, smart car or connected car, health care, digital education, retail business, security and safety related service, or the like) based on the 5G communication technology and the IoT related technology. The present disclosure discloses a method and apparatus for inserting an index into a code block as a unit in which a channel code is executed and transmitting the same.

The present disclosure relates to a communication technique of fusing a 5G communication system for supporting higher data transmission rate beyond a 4G system with an IoT technology and a system thereof. The system may be used for an intelligent service (for example, smart home, smart building, smart city, smart car or connected car, health care, digital education, retail business, security and safety related service, or the like) based on the 5G communication technology and the IoT related technology. The present disclosure discloses a method and apparatus for inserting an index into a code block as a unit in which a channel code is executed and transmitting the same.

Methods, systems, and devices for wireless communications are described. A UE may transmit one or more uplink messages according to an orthogonal cover code (OCC) and an OCC scheme indicated by a network entity. The UE may receive control signaling scheduling one or more uplink messages for transmission. The control signaling may also indicate one or more OCC parameters for the one or more uplink messages. The UE may receive second control signaling that indicates that an OCC scheme for uplink messages is enabled. The control signaling may indicate a row within a time domain resource allocation (TDRA) table or a row within an OCC table. In either case, the row may correspond to the one or more OCC parameters. The UE may transmit the one or more uplink messages using an OCC in accordance with the one or more OCC parameters, the OCC scheme, or both.

A terminal according to an aspect of the present disclosure includes a receiving section that receives an indication of one or more antenna ports in one or more code division multiplexing (CDM) groups for a demodulation reference signal (DMRS) to which a frequency domain orthogonal cover code (FD-OCC) longer than 2 is applied, and a control section that determines, based on the indication, whether to assume that a remaining antenna port of the one or more antenna ports in the one or more CDM groups is allocated to transmission of an uplink shared channel from another terminal. According to an aspect of the present disclosure, it is possible to use an appropriate number of DMRS ports.