Abstract: Provided in the embodiments of the present application are a signal transmission method and device, the method comprising: a first device determines a target channel access mechanism from at least two channel access mechanisms, the at least two channel access mechanisms being candidate channel access mechanisms for the first device to transmit first signals on an unlicensed carrier; on the basis of the target channel access mechanism, the first device performs channel sensing of the unlicensed carrier in order to determine whether time frequency resources used by the first device for sending the first signals are available, the first signals comprising at least two reference signals, the at least two reference signals comprising a first reference signal and a second reference signal, and the first reference signal being positioned before the second reference signal on the time domain.

Abstract: This application provides a channel quality information reporting method, a terminal device, and a network device. The reporting method includes: receiving, by a terminal device, a first reference signal and a second reference signal that are sent by a network device; receiving, by the terminal device, first indication information sent by the network device, where the first indication information includes a quasi co-location (QCL) assumption relationship between the second reference signal and the first reference signal; and reporting, by the terminal device, second channel quality information to the network device based on the QCL assumption relationship, where the second channel quality information is channel quality information for the second reference signal. According to this application, resource overheads for reporting channel quality information can be reduced.

Abstract: To improve overall throughput and reliability of communications for a user equipment (UE) on a shared radio spectrum, the UE may share an acquired transmission opportunity (TxOP) with multiple transmission receive points (TRPs) or peer UEs. In an aspect of the disclosure, a method, and an apparatus are provided. The apparatus is configured to trigger at least one TRP or at least one peer UE to share an acquired TxOP, and receive downlink/uplink transmissions from the at least one TRP or peer UE during the TxOP based in part on a listen before talk (LBT) indication and a TxOP sharing mode. The apparatus is also configured to obtain the TxOP via an LBT procedure and to adjust a contention window (CW) of the LBT procedure based on a success-failure ratio the downlink/uplink transmissions from the at least one TRP or peer UE.

Abstract: Embodiments of the present disclosure disclose a reference signal pattern transmission method and an apparatus therefor. The method includes: determining, a quantity N of symbols occupied by a CSI-RS resource, and N={1, 2, 4}; obtaining, a pattern of the CSI-RS resource; and sending, configuration information to a terminal device, N=1, the pattern of the CSI-RS resource occupies one RE in time domain, and occupies at least four consecutive REs in frequency domain; or N=2, the pattern of the CSI-RS resource occupies two consecutive REs in time domain, and occupies at least two consecutive REs in frequency domain; or N=4, the pattern of the CSI-RS resource occupies four consecutive REs in time domain, and occupies at least two consecutive REs in frequency domain. According to the embodiments of the present disclosure, a design of a pattern of a channel state information-reference signal resource in a 5G system can be implemented.

Abstract: The purpose of the present invention is to provide a method for increasing data transmission efficiency when performing packet duplication. A method for a terminal in a wireless communication system according to the present invention comprises the steps of: performing protocol data convergence protocol (PDCP) duplication in which an identical PDCP protocol data unit (PDU) is transmitted to a base station through each of a first logical channel and a second logical channel; when a request for retransmission of the PDCP PDU which has been transmitted through the second logical channel is received from the base station, retransmitting the PDCP PDU to the base station; and when the PDCP PDU has been retransmitted a predetermined number of times or more, receiving, from the base station, information indicating deactivation of the PDCP duplication.

Abstract: A terminal apparatus includes: a receiver configured to receive a PDCCH including a DCI format used for scheduling of a PDSCH, and the PDSCH; and a transmitter configured to transmit a HARQ-ACK on a PUCCH, wherein an index of a downlink reference signal quasi co-located (QCLed) with an antenna port of a downlink reference signal associated with the PDSCH is given based on a control resource set in which the PDCCH is detected.

Abstract: An uplink transmission method and an uplink transmission device are provided. The uplink transmission method includes: receiving a first downlink control channel which carries scheduling information of a first uplink shared channel and determining, based on the scheduling information carried on the first downlink control channel, a first frequency domain resource for transmitting the first uplink shared channel; generating a pilot of the first uplink shared channel based on the first frequency domain resource and a basic frequency domain unit; and transmitting the first uplink shared channel and the pilot on the first frequency domain resource.

Abstract: Provided are a method and device for receiving downlink data. The method includes: when a terminal is in a target status and receives downlink data sent by a base station, detecting whether the downlink data is successfully received or not and obtaining the detection result; generating target signaling for indicating the detection result; and sending the target signaling to the base station so that the base station resends the downlink data to the terminal when it is determined, according to the target signaling, that the terminal does not successfully receive the downlink data.

Abstract: The present invention provides a communication terminal that performs wireless communication with an image processing apparatus which broadcasts different types of advertising packets. The communication terminal receives the different types of advertising packets periodically broadcasted from the image processing apparatus; identifies a type of the advertising packet currently received from the image processing apparatus by analyzing a PDU (Protocol Data Unit) in the currently received advertising packet; and transmits a connection request to the image processing apparatus that has transmitted the currently received advertising packet, after the type of the currently received advertising packet is identified to be a specific type.

Abstract: An apparatus includes: a transmitter configured to transmit a transport block and HARQ-ACK on PUSCH; and a physical layer processing unit configured to calculate a number of coded bits for the HARQ-ACK, at least based on a number of SC-FDMA symbols NPUSCH-initialsymb for PUSCH initial transmission for the transport block, and modulation order for the transport block, wherein the number of the SC-FDMA symbols NPUSCH-initialsymb is given at least based on NLBT and a number of SC-FDMA symbols NULsymb included in an uplink slot, and a value of NLBT is 1 in a case that a time continuous signal of a first SC-FDMA symbol included in the PUSCH is generated based on a content of a resource element corresponding to a second SC-FDMA symbol following the first SC-FDMA symbol.

Abstract: According to certain embodiments, a method is disclosed for use in a wireless device being affected by pre-emption. The method comprises receiving information from a network node and performing one or more operations based on the received information. The information indicates a portion of a buffer that is affected by pre-emption. Examples of operations that can be performed based on the received information include flushing the portion of the buffer affected by pre-emption or separately handling the portion of the buffer affected by pre-emption.

Abstract: A sensor control circuit periodically transmits packets in synchronism with a one-by-one monotonous change in count values from a real-time clock circuit. The count values repeat the change within a predetermined numerical value range. The sensor control circuit transmits the count values by adding them to the packets. A collection control circuit acquires values of a reference clock synchronized with a reference time of an upper network from a reference clock generation circuit in accordance with reception of the packets, stores the values in a storage circuit as time stamps representing arrival times of the packets, performs statistical processing of the time stamps and the count values concerning the packets received, and corrects the time stamps based on an packet transmission interval and a reference arrival time representing the arrival time of a head packet, which are obtained from the statistical processing.

Abstract: Certain aspects of the present disclosure provide methods and apparatus for accommodating immediate response to frames transmitted under time division multiplexed (TDM) access. Certain aspects of the present disclosure also provide methods and apparatus for indicating a frame is transmitted under time division multiplexed (TDM) access.

Abstract: A radio terminal includes a radio reception device that receives line identification information related to a setting of a host line between a base station and a host node, and a radio signal from the base station, when a radio line between the radio terminal and the base station is disconnected, and the host line used by the radio terminal to communicate via the base station is maintained, a control device that scrambles or spreads a signal to be transmitted to another communication device or the base station, using the line identification information, and a radio transmission device that transmits the scrambled or spread signal to the base station.

Abstract: One embodiment is a method and includes receiving at a termination element of a first network a bandwidth report (“BWR”), in which the BWR includes information regarding a data transmission opportunity over a second network for at least one endpoint data; scheduling a first network transmission opportunity for the at least one endpoint data using information derived from the received BWR; and receiving from a first network forwarding device the at least one endpoint data in accordance with the scheduled first network transmission opportunity.

Abstract: Data transfer method and apparatus for use in a mobile communication system are provided. Method to transmit and receive common control channel message includes generating MAC subPDU for common control channel message with 1st type subheader, transmitting MAC PDU including the MAC subPDU to the network, receiving MAC PDU including MAC subPDU for common control channel message with 2nd type subheader from the network and processing the received MAC subPDU applying the 2nd type subheader.

Abstract: This application provides a communication method, a terminal, and a base station, so that communication is performed between a terminal and a cell during cell handover. The method includes: receiving, by a terminal from a first base station, a cell identity of a first cell, at least one beam parameter of the first cell, and a resource associated with the at least one beam parameter, where the first cell belongs to a second base station; further, determining a target beam parameter, and sending information on a resource corresponding to the target beam parameter; and receiving a response to the information by using a receive beam associated with the target beam parameter, so that communication can be performed between the terminal and a cell during cell handover.

Abstract: Methods and apparatus are provided for a base station to enable a user equipment (UE) configured for operation with carrier aggregation over a number of cells to determine cells and transmission time intervals (TTIs) where the base station transmits data information to the UE and for the UE to determine and arrange corresponding acknowledgement information in a codeword.

Abstract: A multicast service processing method and an access device. In the method, an access device receives an on-demand request; the access device separately sends the on-demand request to a multicast source device through a first uplink port of the access device and a second uplink port of the access device, so that the multicast source device sends a first multicast packet and a second multicast packet based on the on-demand request; the access device receives the first multicast packet through the first uplink port of the access device, and receives the second multicast packet through the second uplink port of the access device; the access device obtains a multicast data stream based on attribute information of the first multicast packet and attribute information of the second multicast packet; and the access device sends the obtained multicast data stream to the program terminal.

Abstract: A method for validating a time function in a network of a vehicle includes: ascertaining a receiving time of a sync message of a master; receiving a follow-up message of the master; ascertaining a receiving time of a further sync message of the master; receiving a further follow-up message of the master; determining a time function of the first client based on the receiving time of the sync message, the receiving time of the further sync message, the transmission time of the follow-up message, and the transmission time of the further follow-up message; ascertaining a synchronized transmission time of a path delay request message from the first client to the master; ascertaining a synchronized receiving time of a path delay response message from the master; receiving a path delay response follow-up message from the master by the first client; and validating a time function of the master.