A method for receiving downlink data by the terminal in a wireless communication system, includes receiving, from a base station, downlink control information for scheduling a short physical downlink shared channel (sPDSCH) on a short physical downlink control channel (sPDCCH), and receiving, from the base station, downlink data on the sPDSCH based on the downlink control information. Here, the sPDCCH and the sPDSCH are based on a first transmission time interval (TTI)-based radio frame structure, wherein the first TTI-based radio frame structure is shorter in time than a second TTI-based radio frame structure related to (i) a physical downlink shared channel (PDSCH) and (ii) a physical downlink control channel (PDCCH). Further, a number of resource element groups (REGs) consisting of a control channel element (CCE) related to the sPDCCH is smaller than a number of resource element groups (REGs) composed of a CCE related to the PDCCH.

A method for receiving downlink data by the terminal in a wireless communication system, includes receiving, from a base station, downlink control information for scheduling a short physical downlink shared channel (sPDSCH) on a short physical downlink control channel (sPDCCH), and receiving, from the base station, downlink data on the sPDSCH based on the downlink control information. Here, the sPDCCH and the sPDSCH are based on a first transmission time interval (TTI)-based radio frame structure, wherein the first TTI-based radio frame structure is shorter in time than a second TTI-based radio frame structure related to (i) a physical downlink shared channel (PDSCH) and (ii) a physical downlink control channel (PDCCH). Further, a number of resource element groups (REGs) consisting of a control channel element (CCE) related to the sPDCCH is smaller than a number of resource element groups (REGs) composed of a CCE related to the PDCCH.

The present disclosure relates to a user device, a base station, a method for data transmission/reception by a user device, and a method for data reception/transmission by a base station. The user device comprises circuitry which, in operation, receives a parameter defining a rule for assigning to ports respective resources for carrying reference signals, generates, based on a mapping known to the user device and the base station, a set of layer-to-port mapping combinations, and receives, from the base station, control information indicating one of the set of layer-to-port mapping combinations which is to be applied for data transmission and/or reception.

The present disclosure relates to a user device, a base station, a method for data transmission/reception by a user device, and a method for data reception/transmission by a base station. The user device comprises circuitry which, in operation, receives a parameter defining a rule for assigning to ports respective resources for carrying reference signals, generates, based on a mapping known to the user device and the base station, a set of layer-to-port mapping combinations, and receives, from the base station, control information indicating one of the set of layer-to-port mapping combinations which is to be applied for data transmission and/or reception.

A wireless device receives configuration parameters indicating: a first cell carries scheduling information for first packets received via the first cell; and a second cell carries scheduling information for second packets transmitted via the first cell. A downlink control information (DCI) for transmission via the first cell is received. A determination is made whether the DCI is for uplink transmission or downlink transmission. Based on the determining, a deactivation timer of the second cell is restarted or not restarted. In response to the deactivation timer of the second cell expiring, the second cell is deactivated.

Disclosed are a method and a device for a node used for wireless communication. The node receives a first information block and a second information block, the first information block and the second information block indicate a scheduled cell set and M PDCCK candidates respectively. M1 PDCCH candidates are monitored in a first time window, the M1 PDCCH candidates occupy M2 non-overlapped CCEs. A first threshold and a second threshold are used to determine the M1 PDCCH candidates. The scheduled cell set is divided into a first cell group and a second cell group, a control resource pool in a scheduling cell of a first serving cell is used to determine whether belongs to the first cell group or the second cell group.

A wireless device receives configuration parameters of a primary cell and a secondary cell. In response to the secondary cell cross-carrier scheduling the primary cell, the wireless device determines radio link monitoring reference signals based on: one or more first control resource sets (coresets) of the primary cell and one or more second coresets of the secondary cell. The wireless device measures the radio link monitoring reference signals for radio link monitoring of the primary cell.

The present disclosure relates to a communication technique that merges IoT technology with a 5G communication system for supporting higher data transmission rates than 4G systems, and a system for same. The present disclosure may be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail business, security and safety-related services, etc.) on the basis of 5G communication technology and IoT-related technology. The invention of the present disclosure is a method performed by a terminal of a communication system, the method being characterized by comprising receiving physical uplink control channel (PUCCH) setting information from a base station, receiving a downlink control channel (DCI) which schedules downlink data from the base station, receiving the downlink data, and repeatedly transmitting, to the base station, hybrid automatic repeat request acknowledgement (HARQ-ACK) information for the downlink data on the PUCCH, wherein the PUCCH setting information includes at least one piece of information among a plurality of PUCCH formats for repeatedly transmitting the PUCCH, a set of one or more start symbols, a set of one or more numbers of PUCCH symbols, and the total number of slots or symbols for finishing the PUCCH repetition.

According to various embodiments, a reception STA may receive a physical layer protocol data unit (PPDU) including a first field and a second field from a transmission STA. The first field may include information about a configuration of a plurality of resource units (RUs). The second field may include a plurality of user fields for allocating the plurality of RUs to a plurality of users. The reception STA may identify a multiple RU (M-RU) allocated to itself and decode the received PPDU.

The present disclosure relates to a communication technique that merges IoT technology with a 5G communication system for supporting higher data transmission rates than 4G systems, and a system therefor. The present disclosure may be applied to intelligent services (for example, smart homes, smart buildings, smart cities, smart cars or connected cars, healthcare, digital education, retail business, security and safety-related services, etc.) on the basis of 5G communication technology and IoT∼-related technology. The present invention discloses a method and device for setting and applying a plurality of Discontinuous receptions (DRXs).