Embodiments of the present invention provide a method for determining a DRX activation period and a terminal device, which are applied to the technical field of communications. The embodiments of the present invention comprise: determining a discontinuous reception (DRX) activation period according to a transmission duration of a physical uplink shared control channel (PUSCH) binding transmission and first round-trip time (RTT).

A method for controlling data retransmission is provided. Data is transmitted to network device and a timer is started. The data is retransmitted after the timer expires if a HARQ-ACK feedback corresponding to the data is not received before the timer expires. Or the data is retransmitted if a HARQ-NACK feedback corresponding to the data is received from the network device before the timer expires.

The present invention relates to a method for transmitting a medium access control (MAC) protocol data unit (PDU) by a user equipment (UE) in a wireless communication system. Especially, the method includes the steps of generating the MAC PDU; and based on a listen before talk (LBT) succeeding, transmitting the MAC PDU on an uplink resource using a Hybrid automatic repeat request (HARQ) process; wherein, based on the MAC PDU including user data, a configured grant timer (CGT) and a configured grant retransmission timer (CGRT) for the HARQ process are started, and a status of the HARQ process is set to not pending, wherein, based on the MAC PDU not including the user data and being multiplexed with uplink control information (UCI), the CGT and the CGRT for the HARQ process are not started, and the status of the HARQ process is set to not pending.

A method for discontinuous reception (DRX) parameter configuration and a device are provided, including: determining, by a terminal, a target DRX parameter of a target DRX mechanism of the terminal when the terminal detects data of multiple services. Thereby a solution is provided for determining a DRX parameter of a target DRX mechanism when multiple services of a terminal are concurrent in a future communication system.

Systems and methods are provided for efficiently sending large units of data in a network. A sender computing device splits the proposal into a plurality of fragments, and sends each of the plurality of fragments to a receiver computing device. The sender computing device receives an acknowledgement from the receiver computing device for each fragment received by the receiver computing device. If no acknowledgements for any fragments are received within a predetermined time period, it may be determined that an error occurred, in which case the sender may time out or take another action. The sender computing device further sends a message to the receiver computing device, wherein a payload of the message includes one or more references corresponding to the plurality of fragments sent.

Embodiments of this application provide a wireless communication method and device, to allow a terminal device to flexibly configure a time length of a first timer (a downlink HARQ round trip time timer or an uplink HARQ round trip time timer) based on different application scenarios. The method includes: obtaining feature information of a first air interface format and/or feature information of first transmission data; and determining a time length of a first timer based on the feature information of the first air interface format and/or the feature information of the first transmission data, where the first timer is used to indicate that monitoring a downlink control channel PDCCH is not required within the time length of the first timer.

According to one embodiment, a wireless communication device includes: a communicator and controlling circuitry. The communicator is configured to simultaneously communicate a first frame and a second frame, and after the first frame and the second frame are communicated, communicate a third frame indicating acknowledgement of the first frame and a fourth frame indicating acknowledgement of the second frame. The controlling circuitry is configured to control to prevent the third frame and the fourth frame from being simultaneously communicated.

According to one embodiment, an electronic apparatus includes a transmitter circuitry and a receiver circuitry. The transmitter circuitry is configured to; transmit a first frame to a first terminal, and transmit a second frame to a second terminal when a first period elapsed after transmission of the first frame. The receiver circuitry is configured to receive a third frame including acknowledgement information of the first frame from the first terminal when the first period elapsed after transmission of the first frame. A duration of the second frame is set as equal to or greater than a difference between a duration of the third frame and a duration of the first frame.

Methods, systems, and devices for wireless communications are described. In some wireless communications systems, a transmitting device may be configured to transmit a transport block in a set of transmission time intervals (TTIs) of a repetition window to improve the chances that the transport block is received by a receiving device. In some cases, however, the transport block may not be available to be transmitted in the repetition window until after a first TTI of the repetition window. In such cases, a transmitting device may use the techniques described herein to identify appropriate configurations for transmitting the transport block in the repetition window. For example, the transmitting device may identify an adjusted redundancy version sequence to use for transmitting the transport block in the repetition window or the transmitting device may adjust a repetition window based on a TTI in which the transport block is available to be transmitted.

Aspects of the disclosure provide an apparatus for wireless communication. The apparatus includes a transceiver and a processing circuit. The transceiver is configured to transmit and receive wireless signals. The processing circuit is configured to detect an error of a previous scheduled transmission of data units from the apparatus to another apparatus. The other apparatus provides scheduled resources for transmission between the two apparatuses. Further, the processing circuit is configured to determine resources that are scheduled by the other apparatus for the apparatus to perform retransmission, and provide one or more of the data units in the previous scheduled transmission to the transceiver for retransmission using the scheduled resources.