Abstract: A transmitting wireless transmit/receive unit (Tx WTRU) may receive configuration information that indicates one or more parameters. The one or more parameters may be associated with resource selection. The Tx WTRU may determine a first resource selection window and a second resource selection window. The first resource selection window may be associated with an active time of a receiving wireless transmit/receive unit (Rx WTRU). The second resource selection window may be associated with an inactive time of the Rx WTRU. The Tx WTRU may determine a first number of candidate resources associated with the first resource selection window. The Tx WTRU may determine a first number of candidate resources associated with the second resource selection window. In examples, the Tx WTRU may increase the first number of candidate resources associated with the first resource selection window to a second number of candidate resources associated with the first resource selection window.

Abstract: A system and methods for beam failure recovery and management for multi-carrier communications with beamforming are disclosed herein. A wireless transmit/receive unit (WTRU) may monitor for and detect a beam failure of a beam associated with a secondary cell (Scell). The WTRU may select an Scell candidate beam. The WTRU may transmit using a selected uplink (UL) resource in a primary cell (SpCell) a medium access control (MAC) control element (CE) including an indication of Scell beam failure and identifying the selected candidate beam. The WTRU may receive an Scell beam failure indication response on the SpCell indicating an SCell index and a downlink (DL) quasi co-location (QCL) reference associated with the Scell. The WTRU may verify that the DL QCL reference matches with the candidate beam. The WTRU may perform random access on the SCell using the selected QCL reference and the selected candidate beam.

Abstract: The present disclosure relates to a construction method for a deformable anchor cable capable of being prestressed. The anchor cable includes an outer sleeve, a shrinkage pipe, an inner sleeve, a steel strand, an anchor and a tray. When the anchor cable is in use, a hole is drilled first, then the anchor cable is mounted in the drilled hole, and finally a prestress is applied to the steel strand of the anchor cable. According to the construction method, the construction is convenient; the anchor cable has the characteristics of high strength and large deformation, and can be easily prestressed; and the large deformation is realized by squeezing the inner sleeve by means of the anchor, which completely overcomes the problem of breaking a cold-drawn rod during the large deformation process.

Abstract: A wireless transmit/receive unit (WTRU) receives first timing advances and first power control commands from a first eNodeB and second timing advances and second power control commands from a second eNodeB and transmits, to the first eNodeB, a first physical uplink control channel using a first uplink component carrier. The first physical uplink control channel has a first timing adjusted by the first timing advances but not by the second timing advances and a first power level adjusted by the first power control commands but not by the second power control commands. The WTRU transmits a second physical uplink control channel using a second uplink component carrier. The second physical uplink control channel has a second timing adjusted by the second timing advances but not by the first timing advances and a second power level adjusted by the second power control commands but not by the first power control commands.

Abstract: A method for WTRU autonomous resource selection may comprise receiving a TX resource pool for D2D communication from a base station. The WTRU may sense one or more resources of the TX resource pool and determine resources for transmission of control information and D2D data, based on the sensing. The WTRU may then transmit, to another WTRU, the control information and the D2D data on the determined resources.

Abstract: A method performed by a base station may include transmitting a configuration message including at least information indicating a subset of a plurality of transmit beams to be used for transmitting a set of synchronization signals. The set of synchronization signals including a primary synchronization signal and a secondary synchronization signal may be transmitted. A random access channel (RACH) transmission may be received using a receive beam associated with one of the subset of the plurality of transmit beams used by the base station to transmit the set of synchronization signals. The transmitted set of synchronization signals transmitted may have a signal quality above a signal quality threshold. A reference signal may be transmitted along with a physical broadcast channel (PBCH) transmission. The reference signal may have a sequence derived from a beam index associated with the one of the subset of the plurality of transmit beams.

Abstract: Methods and systems for selecting and presenting web resources (e.g. videos) are provided, the method includes: transmitting a first video to be played by a device associated with a user account; and during playback of the first video at the device: detecting an update to configuration data associated with the user account; determining, based on the update to the configuration data associated with the user account, a next video recommendation for the user account; and causing an indication of the next video recommendation to be displayed on the device.

Abstract: Methods, devices and systems are provided for performing a random access (RA) procedure. A wireless transmit/receive unit (WTRU) may be configured to receive RA resource sets, where each of the RA resource sets is associated with a node-B directional beam, select an RA resource set from among the RA resource sets, and initiate an RA procedure based on the selected RA resource set. The RA procedure may include selecting multiple preambles which include a preamble for each resource of a plurality of resources corresponding to the selected RA resource set. The WTRU may be configured to sequentially transmit the selected multiple preambles in sequential RA transmissions, and may be configured to receive, from a node-B, in response to the RA transmissions, at least one RA response (RAR), where each of the received at least one RAR corresponds to one of the transmitted multiple preambles.

Abstract: A receiver bandwidth adaptation for radio access technologies (RATs) may be for a New Radio (NR) or 5G flexible RAT. A WTRU control channel (e.g., receiver) bandwidth may change, for example, based on monitoring a downlink channel for an indication using a bandwidth (BW) associated with a first BW configuration. The indication may include a signal to change the receiver BW. The WTRU may change the receiver BW associated with the first BW configuration to a second BW configuration when the WTRU receives the indication on a downlink (DL) channel. The WTRU may perform one or more measurements associated with the second BW configuration in response to the change of the receiver BW to the second BW configuration. The WTRU may transmit measurement information to a network entity. The WTRU may receive a DL transmission from the network using the second BW configuration.

Abstract: Methods, apparatus, systems, architectures and interfaces for determining whether sidelink resources of a sidelink radio bearer are available, and for reserving resources of any number of sidelink radio bearers for transmission of periodic data are provided. The method includes determining any of a size, a period, or a pattern of a resource reservation for periodic data that is to be transmitted by the WTRU via the sidelink radio bearer; determining sidelink resources available for transmission of the periodic data via any number of sidelink radio bearers; and transmitting a message including the resource reservation including information indicating reservation of the available sidelink resources for transmission of the periodic data by the WTRU according to any of the size, the period, or the pattern of a resource reservation, wherein the message includes any of a bearer identifier (ID) or Quality of Service (QoS) information.

Abstract: A system and methods for beam failure recovery and management for multi-carrier communications with beamforming are disclosed herein. A wireless transmit/receive unit (WTRU) may monitor for and detect a beam failure of a beam associated with a secondary cell (Scell). The WTRU may select an Scell candidate beam. The WTRU may transmit using a selected uplink (UL) resource in a primary cell (SpCell) a medium access control (MAC) control element (CE) including an indication of Scell beam failure and identifying the selected candidate beam. The WTRU may receive an Scell beam failure indication response on the SpCell indicating an SCell index and a downlink (DL) quasi co-location (QCL) reference associated with the Scell. The WTRU may verify that the DL QCL reference matches with the candidate beam. The WTRU may perform random access on the SCell using the selected QCL reference and the selected candidate beam.

Abstract: The present invention relates to a support method of preset internal cable for in-situ tunnel expansion project, comprising a cable, lockset and an anchoring agent, wherein before the excavation of the newly-built tunnel, a borehole is drilled into the surrounding rock from the in-situ tunnel, and the cable is installed in the borehole and pre-stressed, so as to play a supporting role at the moment of excavation of the newly-built tunnel. The cable is fixed in the depth of the surrounding rock by the anchoring agent, and the lockset of the cable is set at the position of the excavation contour line of the newly-built tunnel inside the surrounding rock. The present invention provides a method that does not interfere with the excavation construction and can effectively support the surrounding rock of the expanded tunnel in advance.

Abstract: A wireless transmit/receive unit (WTRU) is configured to receive an identifier of a beam. The WTRU is configured to measure a downlink quality associated with at least one beam. The WTRU is configured to determine whether the measured downlink quality is below a threshold value. The WTRU is configured to receive at least one control channel transmission using the beam of the identifier in response to a determination that the measured downlink quality is below the threshold value, wherein the beam used to receive the at least one control channel transmission is a same beam used to receive an associated data channel transmission.

Abstract: Methods and apparatuses are described herein for sidelink communication in a wireless transmit/receive unit (WTRU). For example, a first WTRU configured with first and second resource pools may perform at least one congestion measurement of the second resource pool. The first resource pool may be configured for use by the first WTRU for transmission of the first data. The second resource pool may be configured for use by a second WTRU for transmission of the second data associated with a higher priority than the first data. If the at least one congestion measurement of the second resource pool is below a predetermined threshold, the first WTRU may transmit the first data using the first resource pool. If the at least one congestion measurement of the second resource pool is above a predetermined threshold, the first US may not transmit the first data using the first resource pool.

Abstract: Systems, methods, and instrumentalities are disclosed for reliable control signaling, for example, in New Radio (NR). A receiver in a wireless transmit/receive unit (WTRU) may receive one or more physical downlink control channel (PDCCH) transmissions comprising downlink control information (DCI). The WTRU may determine a transmission profile associated with an uplink control information (UCI). Based on the transmission profile, the WTRU may determine one or more transmission characteristics associated with the transmission of the UCI. The WTRU may transmit the UCI over a physical uplink control channel (PUCCH). The UCI may be transmitted using transmission characteristics determined by the WTRU. The WTRU may transmit the UCI based on at least one of a control resource set (CORESET), a search space, or a radio network temporary identifier (RNTI). The WTRU may determine a transmission profile differently based on what the UCI may comprise.

Abstract: A wireless transmit/receive unit (WTRU) receives first timing advances and first power control commands from a first eNodeB and second timing advances and second power control commands from a second eNodeB and transmits, to the first eNodeB, a first physical uplink control channel using a first uplink component carrier. The first physical uplink control channel has a first timing adjusted by the first timing advances but not by the second timing advances and a first power level adjusted by the first power control commands but not by the second power control commands. The WTRU transmits a second physical uplink control channel using a second uplink component carrier. The second physical uplink control channel has a second timing adjusted by the second timing advances but not by the first timing advances and a second power level adjusted by the second power control commands but not by the first power control commands.

Abstract: Methods and apparatus for power saving in a wireless network are disclosed. A Wireless Transmit/Receive Unit (WTRU) may comprise a transmitter, a receiver, and a processor. The processor may determine a processing state pertaining to behavior of the WTRU and determine a minimum amount of resources to be processed for one or more sets of physical resources based on the determined processing state. Each respective set of physical resources may comprise resources in time, and any of frequency or space. For each respective set of physical resources, the time may comprise a frame structure associated with a numerology applicable to the respective set of physical resources, the frequency may comprise any of a frequency location, a bandwidth, or the numerology, and the space may comprise one or more beams. The processor may process the determined minimum amount of resources of the one of more sets of physical resources.

Abstract: System(s), method(s), and device(s) for addressing new radio (NR) sidelink latency and protocols. A relay wireless transmit receive unit (WTRU) may be configured to relay information between a remote WTRU and the network. Certain rules, parameters, thresholds, and/or configurations may be used to control and/or reduce latency. In one example, the remote WTRU may send a message to the relay WTRU indicating parameters for data to be relayed; and the relay WTRU may send a message to the network regarding the same.

Abstract: Procedures, methods, architectures, apparatuses, systems, devices, and computer program products directed to selection and/or reselection of WTRUs and paths are provided. Among such methods is a method that may be implemented in a first WTRU and may include determining first measurements based on first sidelink transmissions received from a second WTRU; receiving, from the second WTRU, second measurements associated with a path between the first WTRU and a third WTRU, wherein second measurements are based, at least in part, on sidelink transmissions exchanged between the third WTRU and the second WTRU or between the third WTRU and a fourth WTRU; determining a measurement of the path based on any of the first and second measurements; determining transmission parameters for transmitting discovery messages during a communication period based on any of the measurement of the path and quality of service criteria; and transmitting the discovery messages according to the transmission parameters.

Abstract: Procedures, methods, architectures, apparatuses, systems, devices, and computer program products are disclosed that may be implemented in wireless transmit/receive unit (WTRU) for device-to-device communications, such as sidelink (SL) transmissions in a vehicle-to-everything (V2X) environment. In one representative method, the WTRU may monitor a resource pool for a first channel having 1st stage SL control information (SCI) and decode a detected 1st stage SCI. The 1st stage SCI may be associated with corresponding 2nd stage SCI. Based on information indicated by the decoded 1st stage SCI, the WTRU may determine whether to perform, or continue to perform, decoding of the associated 2nd stage SCI. The WTRU may also perform decoding of a second channel associated with the 1st stage SCI. The decoding of the 2nd stage SCI and the decoding of the second channel may be performed for a same sub-frame, slot and/or mini-slot.