Abstract: A communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT) is provided. The communication method includes intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. This disclosure provides a grant-free-based data transmission method and apparatus.

Abstract: Disclosed are a method and device for transmitting/receiving a downlink channel from multiple transmission/reception points in a wireless communication system. A method for a terminal to receive a downlink channel in a wireless communication system according to an embodiment of the present disclosure comprises the steps of: receiving a downlink control channel on the basis of two or more transmission configuration indicator (TCI) states associated with one or more control resource sets (CORESETs); and receiving a downlink data channel on the basis of the two or more TCI states associated with one or more CORESETs, on the basis of TCI information not being included in downlink control information (DCI) received through the downlink control channel, wherein the two or more TCI states may be mapped to the downlink data channel on the basis of a prescribed mapping scheme.

Abstract: A method for data transmission, a user equipment (UE), and a network device are provided. The method includes the following. A first downlink control information (DCI) is received, where the first DCI is used for scheduling a first physical downlink shared channel (PDSCH), and the first PDSCH carries a first hybrid automatic repeat request (HARQ) process. A second PDSCH after the first PDSCH. If a value of a PDSCH feedback time information field in the first DCI is a specific value, a HARQ process carried by the second PDSCH is one of HARQ processes supported by a UE, and the HARQ processes supported by the UE comprises the first HARQ process. If the value of the PDSCH feedback time information field in the first DCI is not the specific value, the HARQ process carried by the second PDSCH is not the first HARQ process.

Abstract: One wireless telecommunications system includes a Mobile Central Office (MCO) for capacity sharing via a master scheduling system. The MCO is communicatively coupled to a plurality of wireless base stations, each being operable to handle a session from a wireless device and to handoff the session to another wireless base station when the wireless device moves into a range of the other base station. Each of the wireless base stations is operable to convey capacity information to the master scheduling system through the MCO, and to acquire capacity from one or more wireless base stations of another MCO when directed by the master scheduling system.

Abstract: A method for performing fast retransmission in a wireless communication system, according to one embodiment of the present disclosure, is performed by a terminal, and comprises the steps of: receiving downlink data or transmitting uplink data; and performing a hybrid automatic repeat request (HARQ) operation including retransmission, in which transmission and reception of a HARQ-acknowledgement (HARQ-ACK) for the downlink data or the uplink data are not present or retransmission scheduling is not present, for the downlink data and the uplink data.

Abstract: Systems and methods of adjusting contention window size (CWS) in a LBT procedure for both UL and DL unlicensed spectrum transmissions are described. The UE makes a HARQ-ACK determination for at least one code block group (CBG) of a transport block (TB) in a reference burst from a base station, determines whether the HARQ-ACK determination for the CBG meets a predetermined number of NACKs, transmits to the base station a single bit HARQ-ACK feedback for the TB that is dependent on whether the predetermined number of NACKs has been met, and receives or determines the adjusted CWS and uses the adjusted CWS for communication with the base station.

Abstract: A method for transmitting/receiving data in a wireless communication system and a device for supporting same are presented. Particularly, a method by which a terminal receives a physical downlink shared channel (PDSCH) in a wireless communication system comprises the steps of: receiving, from a base station, downlink control information (DCI) for scheduling the PDSCH in a nth transmission time unit; and determining whether the PDSCH is received on the basis of the DCI, wherein the DCI includes information for indicating whether a demodulation reference signal (DMRS) for the PDSCH exists in the nth transmission time unit.

Abstract: A terminal is disclosed including a receiver that receives configuration information; and a processor that controls receiving processes for Physical Downlink Shared Channel (PDSCH), wherein the processor controls the receiving processes for the PDSCH under an assumption that the PDSCH is not allocated in a first reserved resource corresponding to the first configuration information, when the receiver receives first configuration information about a Bandwidth part (BWP)-specific reserved resource as the configuration information, and controls the receiving processes for the PDSCH under an assumption that the PDSCH is not allocated in a second reserved resource corresponding to the second configuration information, when the receiver receives second configuration information about a cell-specific reserved resource as the configuration information. In other aspects, an apparatus and a system are also disclosed.

Abstract: A wireless device may receive a first TB associated with a first HARQ process number. The wireless device may determine to defer a first HARQ feedback, associated with the first TB, from a first timing to a second timing. The wireless device may receive, in a third timing, a second TB associated with the first HARQ process number. The wireless device may transmit the first HARQ feedback in the second timing or may drop the first HARQ feedback based on the second timing and the third timing.

Abstract: An apparatus and a method for transmitting HARQ feedback information in a wireless communication system are provided. In so doing, the method for transmitting the HARQ feedback information in a receiving end includes confirming the number of packets received from a transmitting end, and when receiving a reference number of packets from the transmitting end, transmitting to the transmitting end a feedback signal comprising HARQ feedback information for the reference number of the packets.

Abstract: This disclosure provides systems, methods and apparatuses for indicating sidelink processes for sidelink feedback. A second user equipment (UE) may request hybrid automatic repeat request (HARD) responses from a first UE for a particular set of sidelink processes over a physical sidelink feedback channel. To indicate multiple sidelink processes, the second UE may indicate, in sidelink control information, a window of sidelink processes. The window may be a sliding window that starts with a starting sidelink process and extends through other sidelink processes. The second UE may transmit data for the sidelink processes in the sliding window and receive feedback for the indicated sidelink processes. In some aspects, the first UE may select, in coordination with the second UE, the sidelink processes for which feedback is to be provided.

Abstract: A base station may transmit, to a wireless device, a first downlink control information (DCI) associated with a first control resource set (coreset) pool index. The first DCI may trigger transmission of a reference signal. The base station may transmit, to the wireless device, a second DCI associated with a second coreset pool index. The second DCI may schedule a downlink signal with a transmission configuration indicator (TCI) state. Based on the first coreset pool index and the second coreset pool index being the same, the base station may transmit, to the wireless device, the reference signal with the TCI state.

Abstract: The present disclosure proposes an example related to the signal field of the wireless LAN system. For example, a transmission/reception physical protocol data unit (PPDU) includes a first control signal field, and the first control signal field includes information related to a plurality of transmission modes which are related to SU, OFDMA, full bandwidth MU-MIMO, NDP, etc. The second control signal field of the transmission/reception PPDU may include various common fields and user specific fields configured based on a transmission mode.

Abstract: Disclosed are a method and a device for transmitting or receiving HARQ-ACK information in a wireless communication system. A method for transmitting HARQ-ACK information according to an embodiment of the present disclosure may comprise the steps of: receiving, from a base station, first physical uplink control channel (PUCCH) configuration information related to an ACK/negative ACK (NACK)-based HARQ-ACK report for a multi-cast physical downlink shared channel (PDSCH) or second PUCCH configuration information related to an NACK-only-based HARQ-ACK report for the multi-cast PDSCH for each one or more uplink bandwidth parts (BWPs) configured for a terminal; receiving, from the base station, downlink control information (DCI) for scheduling of a first multi-cast PDSCH; receiving the first multi-cast PDSCH from the base station on the basis of the DCI; and transmitting, to the base station, first HARQ-ACK information for the first multi-cast PDSCH on a first PUCCH.

Abstract: This application provides a method for generating hybrid automatic repeat request HARQ information and an apparatus. The method includes: A terminal device receives a first message sent by a network device. The first message is used to indicate that there is a bandwidth part BWP combination in a cell, the BWP combination includes an active BWP, and the BWP corresponds to a set of unified parameters. The terminal device generates HARQ information based on the unified parameters corresponding to the BWP combination. This application provides a method for generating HARQ information when there are a plurality of active BWPs.

Abstract: A method for receiving a backoff value at a wireless station is presented. A traffic indication map is received at the station, wherein a backoff number is implicitly assigned to the station based on a position of the station within the traffic indication map. The backoff value is determined by multiplying the backoff number by a predetermined time value.

Abstract: Systems and methods are disclosed herein for restricting autonomous uplink transmissions by a wireless device in a wireless communication system such that wireless devices performing autonomous uplink transmissions can coexist with wireless devices performing scheduled uplink transmissions in a cell requiring Listen-Before-Talk (LBT). In some embodiments, a method of operation of a wireless device in a wireless communication system comprises receiving, from a radio access node, an indication of which subframes belong to a same channel occupancy within a cell that requires LBT and restricting performance of autonomous uplink transmissions by the wireless device based on the indication of which subframes belong to the same channel occupancy. By restricting autonomous uplink transmissions in this manner, the wireless device can coexist with scheduled wireless devices in the same cell.

Abstract: Disclosed are a method and device for signal detection. The method comprises: a terminal receives system configuration information of a second transmission point sent by a first transmission point; the terminal performs downlink signal detection on the second transmission point according to the system configuration information of the second transmission point. The terminal in embodiments of the present invention can obtain the system configuration information of the second transmission point from the first transmission point, thereby reducing the complexity of signal detection on the second transmission point by the terminal.

Abstract: A minimum scheduling offset value (Kmin value) between scheduling DCI and a corresponding data communication can be determined based on an indication from a network and a channel processing capability. Particular scheduling DCI scheduling a particular corresponding data communication can be received. A determination can be made regarding whether the determined Kmin value is applicable to the particular scheduling DCI and the particular corresponding data communication. In response to determining the determined Kmin value is applicable to the particular scheduling DCI and the particular corresponding data communication, the particular corresponding data communication can be communicated with the network such that the offset between the particular scheduling DCI and the particular corresponding data communication is at least the determined Kmin value.

Abstract: Methods, systems, and devices for wireless communications are described. In one example, a method includes receiving signaling from a base station to activate a semi-persistent scheduling (SPS) configuration for transmission between the base station and the UE, and receiving a hybrid automatic repeat request (HARM) timing for downlink transmissions based at least in part on the SPS configuration being activated. In another example, the method includes establishing a connection with a base station using a component carrier (CC), the CC having a plurality of bandwidth parts (BWPs), receiving signaling that indicates an SPS configuration or other types of pre-configured resources associated with at least a first BWP of the plurality of BWPs and transmitting or receiving using at least the first BWP according to the SPS configuration or other types of pre-configured resources associated with at least the first BWP.