Abstract: A method performed by at least one processor of a network node operating in a wireless communication network includes receiving data associated with a plurality of users. The method further includes performing, by a discrete Fourier transform (DFT) coder, a DFT transformation on the data associated with the plurality of users. The method further includes performing, on the output of the DFT coder by a subcarrier mapper, subcarrier mapping that maps the output of the DFT coder to a set of subcarriers. The method further includes performing an inverse DFT (IDFT) on the output of the subcarrier mapper. The method further includes transmitting, over the wireless communication network, the output of the IDFT as a DFT spread optical frequency division multiplexing (DFT-s-OFDM) signal.

Abstract: A method performed by at least one processor in a user equipment (UE) includes monitoring a downlink channel in accordance with one or more parameters associated with an on duration timer and an inactivity timer, the on duration timer specifying a time period in which the UE monitors the downlink channel, the inactivity timer specifying a time period in which the UE remains on after reception of downlink information in the downlink channel. The method includes determining whether a predetermined condition for modifying the monitoring of the downlink channel is satisfied. The method further includes, in response to determining the predetermined condition is satisfied, modifying the monitoring of the downlink channel such that power consumption of the UE is reduced.

Abstract: A method performed by at least one processor in a user equipment (UE) includes receiving one or more resources from a base station operating in a non-energy saving mode. The method further includes receiving, from the base station, control information including in a downlink control channel, the control information indicating whether the base station is operating in an energy saving mode. The method further includes determining, based on the control information, whether the base station is operating in the energy saving mode. The method further includes modifying the receiving of the one or more resources in response to a determination the base station is operating in the energy saving mode.

Abstract: A method performed by at least one processor in a user equipment (UE), the method including receiving, from a base station over a channel, a plurality of reference signals corresponding to a state of the channel. The method further including measuring a subset of the received plurality of reference signals. The method further including transmitting, to the base station within a first time interval, a channel status report corresponding to the measuring of the subset of the received plurality of reference signals and a prediction of one more reference signals received by the UE after the first time interval.

Abstract: Methods and apparatus for random access in multicarrier wireless communications are disclosed. Methods and apparatus are provided for physical random access channel (PRACH) resource signaling, PRACH resource handling, preamble and PRACH resource selection, random access response (RAR) reception, preamble retransmission, and transmission and reception of subsequent messages. A method for maintaining an allowed multicarrier uplink (UL) random access channel (RACH) configuration set by adding an UL carrier to the allowed RACH configuration set provided that a triggering event occurs and performing a random access (RA) procedure using the allowed RACH configuration set. A method for sending data in multicarrier wireless communications by determining a set of available UL carriers and selecting an UL carrier from the set of available UL carriers.

Abstract: Systems, methods, and instrumentalities are disclosed for phase noise reference signal (PNRS) transmission, comprising receiving, at a wireless transmit receive unit (WTRU), scheduling information for a Physical Uplink Shared Channel (PUSCH) transmission, wherein the scheduling information includes an indication of a set of physical resource blocks (PRBs) and a modulation coding scheme (MCS) level, determining a density for the PNRS transmission based on at least one of: the MCS level, a frequency band for the PUSCH transmission, or a subcarrier spacing of the PUSCH transmission, and transmitting the PUSCH in the scheduled set of PRBs using the determined density of PNRS.

Abstract: A wireless transmit/receive unit (WTRU) may receive configuration information indicating a set of physical channel frequency resources. The WTRU may receive indication information indicating an allocation of at least a subset of the set of physical channel frequency resources. Further, the WTRU may determine a time period, and one or more physical channel frequency resources from the subset of the set of physical channel frequency resources. The WTRU may transmit data in a physical shared channel transmission using the determined one or more physical shared channel frequency resources during the determined time period. Further, the WTRU may determine a time location for reception of hybrid automatic repeat request acknowledgement (HARQ-ACK) information associated with the transmitted data, and the determination of the time location may be based on the subset of the set of physical channel frequency resources. The WTRU may receive the HARQ-ACK information during the determined time location.

Abstract: Methods and apparatus for wireless transmit/receive unit (WTRU) power control are described. A method includes receiving a time domain resource allocation (TDRA) list configuration including entries, each including a resource allocation that includes a slot offset value. L1 signaling is received indicating a minimum slot offset value. Downlink control information (DCI) is decoded on a physical downlink control channel in a slot. An index is obtained from the decoded DCI, identifying an entry in the TDRA list. A particular slot offset value identified by the index is retrieved from the TDRA list and compared with the minimum slot offset value. If the particular slot offset value is less than the minimum slot offset value, the entry is invalid. If the particular slot offset value is greater than or equal to the minimum slot offset value, a physical downlink shared channel is received.

Abstract: A relay wireless transmit/receive unit (WTRU) may receive a data transmission from a target WTRU. The data transmission from the target WTRU may be or may include an implicit indication that the target WTRU is unable to listen for a message directed to the target WTRU. The message directed to the target WTRU may be a broadcast preemption message (BPM) and may be transmitted from a source WTRU. Based on the reception of the data transmission from the target WTRU, the relay WTRU may determine that the target WTRU is unable to listen for the BPM. Based on the determination, the relay WTRU may monitor for the BPM. The relay WTRU may receive and decode the BPM. The relay WTRU may determine whether to relay the BPM in a message, such as a broadcast relay message (BRM). The relay WTRU may transmit the BRM to the target WTRU.

Abstract: A WTRU may be configured to receive, in a first search space (SS) group (SSG), a first downlink transmission. The first downlink transmission may comprise first configuration information associated with power saving and downlink transmission monitoring. The WTRU may be configured to monitor for a second downlink transmission based on the first configuration information. On a condition that the first configuration information indicates a first value, the WTRU may be configured to monitor in the first SSG. On a condition that the first configuration information indicates a second value, the WTRU may be configured to monitor in a second SSG. On a condition that the first configuration information indicates a third value, the WTRU may be configured to skip downlink transmission monitoring in the first SSG for a first interval and monitor in the first SSG. The WTRU may receive the second downlink transmission based on the first configuration information.

Abstract: A method and apparatus for transmitting uplink control information (UCI) for Long Term Evolution-Advanced (LTE-A) using carrier aggregation is disclosed. Methods for UCI transmission in the uplink control channel, uplink shared channel or uplink data channel are disclosed. The methods include transmitting channel quality indicators (CQI), precoding matrix indicators (PMI), rank indicators (RI), hybrid automatic repeat request (HARQ) acknowledgement/non-acknowledgement (ACK/NACK), channel status reports (CQI/PMI/RI), source routing (SR) and sounding reference signals (SRS). In addition, methods for providing flexible configuration in signaling UCI, efficient resource utilization, and support for high volume UCI overhead in LTE-A are disclosed.

Abstract: Methods for receiving downlink control information (DCI) are provided herein. A method performed by a wireless transmit/receive unit (WTRU) may include receiving configuration information indicating a location of a monitoring indicator and identifying a first one or more search spaces and a second one or more search spaces. The method may include receiving a first physical downlink control channel (PDCCH) transmission including first DCI, the DCI including the monitoring indicator at the indicated location. The method may include monitoring, based on the monitoring indicator, either the first one or more search spaces or the second one or more search spaces and decoding a second PDCCH transmission detected in either the first one or more search spaces or the second one or more search spaces to receive second DCI.

Abstract: Systems, methods, and instrumentalities are disclosed for phase noise reference signal (PNRS) transmission, comprising receiving, at a wireless transmit receive unit (WTRU), scheduling information for a Physical Uplink Shared Channel (PUSCH) transmission, wherein the scheduling information includes an indication of a set of physical resource blocks (PRBs) and a modulation coding scheme (MCS) level, determining a density for the PNRS transmission based on at least one of: the MCS level, a frequency band for the PUSCH transmission, or a subcarrier spacing of the PUSCH transmission, and transmitting the PUSCH in the scheduled set of PRBs using the determined density of PNRS.

Abstract: A system, method, and device for ensuring a number of Phase Tracking Reference Signal(s) (PT-RSs) are the same for multiple slots. A wireless transmit/receive unit (WTRU) may receive control information including a number of scheduled resource blocks (RBs) then determine a PT-RS density based on the number of scheduled RBs. The WTRU may determine a RB offset value for the WTRU based on a WTRU-ID modulo the maximum RB offset value, where the maximum value for the RB offset value may be based on at least one of the number of the scheduled RBs and the PT-RS density. The WTRU may then transmit or receive a signal with PT-RS based on the RB offset value.

Abstract: A wireless transmit/receive unit (WTRU) may receive configuration information indicating a set of physical channel frequency resources. The WTRU may receive downlink control information (DCI), and the DCI may include an indication of an allocation of at least a subset of the set of physical channel frequency resources. Further, the WTRU may determine a time period and one or more physical channel frequency resources from the subset of the set of physical channel frequency resources. The WTRU may transmit control information in a physical shared channel transmission using the determined one or more physical shared channel frequency resources during the determined time period. Also, the control information may include a WTRU-identifier (ID) associated with the WTRU. In an example, the control information may include a new data indicator (NDI) or a retransmission of previously transmitted control information. In a further example, the physical shared channel transmission may further include data.

Abstract: A wireless transmit/receive unit (WTRU) may receive a downlink transmission and send a physical uplink control channel (PUCCH) transmission in each resource block (RB) of an interlace of a plurality of RBs in an active bandwidth part (BWP). A base sequence is mapped to the PUCCH transmission repetitively, once to each RB of the plurality of RBs of the interlace, using a different cyclic shift of the base sequence for each RB. Each different cyclic shift of the base sequence in the PUCCH transmission to each RB is a function of a RB index of the respective RB. The PUCCH transmission indicates either an acknowledgement (ACK) or a negative ACK (NACK) of the received downlink transmission.

Abstract: Methods, apparatus, systems, architectures and interfaces for receiving system information performed by a wireless transmit receive unit (WTRU) having reduced capacity, are provided.

Abstract: Systems, methods, and instrumentalities are disclosed for physical (PHY) layer multiplexing of different types of traffic in 5G systems. A device may receive a communication. The communication may include a first traffic type. The device may monitor the communication for an indication that the communication includes a second traffic type that is multiplexed with and/or punctures the first traffic type. An indicator received in the communication and detected by the monitoring may indicate where the second traffic type is located in the communication. The first traffic type and the second traffic type may be multiplexed at a resource element (RE) level. For example, a first traffic type may be punctured by a second traffic type at the RE level. The device may decode one or more of the first or second traffic types in the communication based on the indication.

Abstract: Methods and apparatus for wireless transmit/receive unit (WTRU) power control are described. A method includes receiving a time domain resource allocation (TDRA) list configuration including entries, each including a resource allocation that includes a slot offset value. L1 signaling is received indicating a minimum slot offset value. Downlink control information (DCI) is decoded on a physical downlink control channel in a slot. An index is obtained from the decoded DCI, identifying an entry in the TDRA list. A particular slot offset value identified by the index is retrieved from the TDRA list and compared with the minimum slot offset value. If the particular slot offset value is less than the minimum slot offset value, the entry is invalid. If the particular slot offset value is greater than or equal to the minimum slot offset value, a physical downlink shared channel is received.

Abstract: A WTRU may be configured to receive, in a first search space (SS) group (SSG), a first downlink transmission. The first downlink transmission may comprise first configuration information associated with power saving and downlink transmission monitoring. The WTRU may be configured to monitor for a second downlink transmission based on the first configuration information. On a condition that the first configuration information indicates a first value, the WTRU may be configured to monitor in the first SSG. On a condition that the first configuration information indicates a second value, the WTRU may be configured to monitor in a second SSG. On a condition that the first configuration information indicates a third value, the WTRU may be configured to skip downlink transmission monitoring in the first SSG for a first interval and monitor in the first SSG. The WTRU may receive the second downlink transmission based on the first configuration information.