A wireless terminal and a node employed in a wireless communications system comprise an outer coding unit configured to use a code with properties akin to Raptor codes as outer erasure codes; and an inner coding unit configured to use an LDPC code as pre-code. The wireless terminal and the node use a code with properties akin to Raptor codes as outer erasure codes, and use the LDPC code as a pre-code.

A user equipment (UE) is configured to transmit cancelled hybrid automatic repeat request (HARQ) feedback. The UE generating HARQ feedback for one or more HARQ process corresponding to a component carrier (CC), identifies that a scheduled transmission for the HARQ feedback has been cancelled and retransmits the cancelled HARQ feedback using a type 3 HARQ codebook.

A network node device of a communication network comprises physical (PHY) layer circuitry configured to transmit and receive data packets via a communication network; and processing circuitry connected to the PHY layer circuitry. The processing circuitry is configured to encode a data packet for sending according to a first communication protocol for sending to a second network node during a specified communication time slot, initiate resending of the data packet when the second network node does not respond during a specified acknowledge time slot, and encode the data packet according to a second communication protocol for sending to the second network node for a last retry attempt of a finite number of retry attempts, wherein the time to send the data packet formatted in the second communication protocol extends into the specified acknowledge time slot.

A method for operating a user equipment (UE) is provided. The method comprises obtaining configuration information for one or more repetitions for one or more channels of a physical downlink control channel (PDCCH), a physical downlink shared channel (PDSCH), or a physical uplink shared channel (PUSCH), wherein the configuration information comprises a parameter to extend a maximum number of repetitions for the one or more channels; and transmitting or receiving the one or more repetitions according to the configuration information.

Aspects described herein relate to determining a failure associated with reception, by a base station, of an initial transmission of a random access message transmitted by the UE in a two-step random access procedure, and based on determining the failure situations associated with reception of the random access message, configuring the parameters of a retransmission and/or retransmitting at least a portion of the random access message.

A user apparatus includes a transmitter configured to perform transmission to another user apparatus via a control channel and a data channel; a receiver configured to receive a HARQ (Hybrid automatic repeat request) response to the transmission from the other user apparatus; and a control unit configured to indicate to the other user apparatus, information related to a resource of a channel to receive the HARQ response, and to perform retransmission control related to the transmission based on the HARQ response.

This application provides a communication method and apparatus, to resolve a problem that retransmitted MPDUs with different RVs cannot be transmitted in a same transmission process, and improve data transmission efficiency. The communication method and apparatus may be applied to a data retransmission process between any two nodes in a Wi-Fi system. The method includes: When a PPDU sent by a first node includes one or more retransmitted MPDUs, the first node may include, in the PPDU, RV indication information used to indicate an RV of each retransmitted MPDU, so that a second node receives each retransmitted MPDU based on the RV indication information.

Hybrid automatic repeat request (HARQ) processes, indicators, and similar methods may be used improve new radio performance in a number of ways. For example HARQ processes may be retransmitted, even before a response is expected, a number of times. Separate acknowledgement may be provided for various code blocks within a single transport block. Multi-bit ACK/NACK signaling may be used to efficiently express the status of individual code blocks or groups of code blocks within a transmission block. Grantless transmissions may be acknowledged implicitly, e.g., via responses comprising downlink control information or sent via a physical hybrid automatic repeat request indicator channel.

The method includes that: a first transmission node receives a signal including a Transmission Block (TB) from a second transmission node; the first transmission node obtains states of the P CB sets according to the signal including the TB; the first transmission node determines at least one kind of feedback information in a preset feedback information set according to the states of the P CB sets; and the first transmission node sends the determined feedback information to the second transmission node.

A counting method and a communications apparatus are provided. The method includes: determining to retransmit a first protocol layer data packet; and if the retransmission is retransmission for the first time, initializing a retransmission counter associated with the first protocol layer data packet; or if the retransmission is not retransmission for the first time and the first protocol layer data packet is not pending for retransmission, updating the retransmission counter or keeping a value of the retransmission counter unchanged. In this way, RLF can be correctly triggered, to reduce a quantity of times of unnecessary RLF triggering and reduce overheads.