Abstract: A wireless transmit/receive unit (WTRU) may be configured to receive one or more slot timing values for transmission of hybrid automatic repeat request (HARQ) acknowledgment (ACK) information bits using first time and frequency resources. The WTRU may be configured to receive configuration information indicating second time and frequency resources for transmission of HARQ-ACK. The configuration information may indicate a set of sequences. The WTRU may be configured to transmit based on HARQ-ACK feedback to be reported for the downlink signals one or more of a first sequence of the set of sequences using the second time and frequency resources, a second sequence of the set of sequences using the second time and frequency resources, or at least one indication of an acknowledgment and at least one indication of a negative acknowledgment using the first time and frequency resources.

Abstract: A wireless transmit/receive unit (WTRU) may include a transceiver and a processor. The WTRU may be configured to receive one or more downlink signals. The WTRU may be configured to receive configuration information indicating time and frequency resources for transmission of hybrid automatic repeat request (HARQ) acknowledgement (ACK). The configuration information may indicate a first sequence. The WTRU may be configured to determine a set of sequences to be used in response to the receipt of the one or more downlink signals. The set of sequences may be determined based on the indicated first sequence. The WTRU may be configured to send a second sequence from the set of sequences in the time and frequency resources to indicate HARQ-ACK. The second sequence may be selected based on a number of physical downlink control channel (PDCCH) monitoring occasions associated with the indicated HARQ-ACK.

Abstract: Various embodiments of the present disclosure provide a method for measurement information. The method, which may be implemented at a terminal device, comprises obtaining measurement information based at least in part on configurations of a master network node and a secondary network node. The terminal device is connected to the master network node and the secondary network node. The method further comprises transmitting a report including the measurement information that comprises frequency information to the master network node, in response to a failure related to the secondary network node.

Abstract: Systems and methods for triggering measurements before the completion of connection resumption are provided. In some embodiments, a method performed by a wireless device for performing measurements where a current Radio Resource Control (RRC) status is: IDLE or INACTIVE. The method includes monitoring for a potential reception of a downlink message in a cell that the wireless device is camping on; detecting, based upon the reception of the downlink message, information regarding performing measurements; performing measurements based on the information regarding performing the measurements; and reporting the measurement results. In some embodiments, the message is a paging message or a message multiplexed with the paging message. In this way, latency might be reduced to start performing measurements.

Abstract: A wireless transmit-receive unit (WTRU) may be configured to perform one or more actions. The WTRU may be configured to receive a handover command. The WTRU may be configured to connect to a target cell and receive one or more packets from the target cell. The WTRU may be configured to receive one or more packets from a source cell. The WTRU may be configured to determine, based on at least one of the received one or more packets from the source cell or the received one or more packets from the target cell, that there are no missing packets. The WTRU may be configured to release, based on the determination that there are no missing packets, a resource associated with the source cell.

Abstract: A method UE for receiving configuration data in a wireless communication network is provided. The UE receives configuration data to configure the UE with early measurement configuration, which the UE (10) will use to perform measurements in dormant state and with one or more SCG configuration(s) that are to be stored by the UEand/or the radio network node, while the UE (10) is in dormant state. The UE performs (605) early measurements in a dormant state according to the early measurement configuration. Upon transition to a connected mode, the UE compares (606) the early measurements to one or more trigger conditions associated with the one or more SCG configurations.Publ.

Abstract: A wireless transmit receive unit (WTRU) may receive, via configuration information, at least one prohibition condition configured to prohibit GNSS activity. The GNSS activity may comprise at least one of GNSS acquisition, GNSS reporting, or GNSS assistance information (AI) reporting. The WTRU may identify a trigger related to the GNSS activity. The WTRU may determine whether a prohibition condition is activated. The prohibition condition may comprise a condition based on a prohibition timer, a condition based on GNSS validity duration, or a condition based on a characteristic of the WTRU. When the prohibition condition is determined to be active, the WTRU may perform the GNSS activity in response to an override or termination of the prohibition condition and based on the prohibition condition being determined to be active.

Abstract: Systems and methods are disclosed herein that provide reporting of early measurements in a cellular communications system. Embodiments of a method performed by a wireless device are disclosed. Early measurements are also referred to herein as dormant mode measurements. In some embodiments, a method performed by a wireless device includes performing one or more dormant mode measurements, where the one or more dormant mode measurements are one or more measurements performed by the wireless device while the wireless device is in a dormant mode. The method further includes storing the one or more dormant mode measurements, identifying a reporting scheme to be used by the wireless device to report dormant mode measurements, and reporting at least one of the stored dormant mode measurements in accordance with the identified reporting scheme. Corresponding embodiments of a wireless device are also disclosed.

Abstract: Systems, methods, and instrumentalities are described herein associated with relay usage (e.g., new radio (NR) relays used as an example herein) where handovers between sidelink (SL) and direct link and/or between sidelinks may be based on consideration of end-to-end radio and/or load conditions. Handover decisions may be determined, for example, based on measurements of direct connections, sidelink connections, and/or backhaul connections. Handover decisions may be optimized, for example, based on measurement reporting behavior. A remote wireless transmit/receive unit (WTRU) (e.g., a WTRU that may be configured to connect to a network, for example, using a relay WTRU) in sidelink relay operation with a relay WTRU may determine measurement reporting behavior (e.g., associated with performed measurements of the direct connections, sideline connections, and/or backhaul connections), for example, while considering the sidelink quality associated with the relay WTRU.

Abstract: The disclosure pertains to methods, apparatuses, systems, and/or procedures for supporting differentiated quality of service (QoS) in sidelink (SL) relays in wireless communications.

Abstract: As disclosed herein, there is one or more system, device, and/or method that addresses one or more of the following, but is not limited to: wireless transmit receive unit (WTRU)(s) configured to send sidelink radio link measurements to a base station (e.g., gNB); WTRU(s) configured to consider CBR/CR levels for starting performing measurements on neighbor links/cells; WTRU(s) configured to consider CBR/CR levels in conjunction with SL RSRP/RSRQ/RSNI thresholds for reporting measurements; WTRU(s) configured to report sidelink measurements in different ways depending on the measurements being performed using data or discovery signals; relay WTRU(s) configured to forward/report sidelink measurements to a gNB; handover commands in a relay scenario based on measurements at a remote WTRU.

Abstract: Systems and methods are disclosed herein that relate to handling of dormant state measurement configurations and associated measurements upon inter-Radio Access Technology (RAT) cell reselection. In some embodiments, a method performed by a wireless device comprises receiving one or more dormant state measurement configurations from a network node of a source RAT, performing measurements while in a dormant state in accordance with at least one of the one or more dormant state measurement configurations, and performing an inter-RAT cell reselection from the source RAT to a target RAT while in the dormant state. The method further comprises, upon performing the inter-RAT cell reselection, performing one or more actions to handle dormant state measurement configurations and/or measurements performed in accordance with dormant state measurement configurations. Corresponding embodiments of a wireless device are also disclosed.

Abstract: Various embodiments of the present disclosure provide a method for measurement information. The method, which may be implemented at a terminal device, comprises obtaining measurement information based at least in part on configurations of a master network node and a secondary network node. The terminal device is connected to the master network node and the secondary network node. The method further comprises transmitting a report including the measurement information that comprises frequency information to the master network node, in response to a failure related to the secondary network node.

Abstract: According to one aspect, there is provided a method of operating a mobile device that is configured for use in a first radio access network that uses a first radio access technology and a second radio access network that uses a second, different, radio access technology, the mobile device aggregating a plurality of carriers in the first radio access network, the method comprising obtaining information for, or pertaining to, one or more of the plurality of carriers in the first radio access network; and processing the obtained information for a single carrier to determine an action for the mobile device to take with respect to the second radio access network.

Abstract: Example embodiments presented herein are directed towards a wireless terminal and base station, and corresponding methods therein, for providing a handover for a subset of bearers associated with the wireless terminal. The subset of bearers is less than a total cumber of bearers associated with the wireless terminal. Thus, upon the completion of the handover procedure, at least one bearer will stay connected with a source base station.

Abstract: A method, system and apparatus are disclosed. According to one or more embodiments, a child IAB node is configured to communicate with a first parent IAB node and a descendant IAB node over a backhaul network. The child IAB node includes processing circuitry configured to: detect a backhaul link failure between the child IAB node and the first parent IAB node; in response to the detected backhaul link failure, cause transmission of a radio link failure indication to the descendant IAB node; receive signaling indicating for the child IAB node to connect to a second parent IAB node; and modify network topology at least in part by connecting to the second parent IAB node.

Abstract: Systems, methods and apparatus are disclosed for user equipment and network nodes. An example method performed by a user equipment (UE) includes the UE detecting a failure relating to a connection between the UE and a Master Cell Group (MCG). The UE provides, to a master node via a Secondary Cell Group, SCG, a first message relating to the detected failure. The UE receives, from the master node via the SCG, a second message indicating to the UE to perform a connection reconfiguration. An example method performed by the master node includes the master node receiving, from the UE via the SCG, the first message including information relating to the detected failure of the connection between the UE and the MCG. The master node determines, based on the first message and a user equipment context, to perform a connection reconfiguration. The master node provides, to the UE via the SCG, the second message indicating to perform the connection reconfiguration.

Abstract: A wireless transmit-receive unit (WTRU) may receive an indication to switch from a point-to-point (FTP) transmission mode to a point-to-multipoint (PTM) transmission mode or determine to switch from the PTP transmission mode to the PTM transmission mode based on a reliability condition associated with the PTM mode. Based on the indication or the determination, the WTRU may switch from the PTP transmission mode to the PTM transmission mode. The WTRU may receive a first data packet. The WTRU may extend a data packet reception window by extending a boundary of the data packet reception window. The boundary may be extended based on a sequence number (SN) of the first data packet and an offset.

Abstract: Embodiments includes methods for a centralized unit (CU) in an integrated access backhaul (IAB) network. Such methods include determining a first identifier of a first backhaul radio link control (BH RLC) channel between first and second nodes in the IAB network. The second node is a child node of the first node. Such methods include sending, to the second node, a second request to setup a second BH RLC channel between the second node and a third node in the IAB network. The third node is a child node of the second node, and the second request includes the first identifier for association with the second BH RLC channel. In some embodiments, at least one data radio bearer between a user equipment (UE) and the CU is associated with both the first and second BH RLC channels. Other embodiments include complementary methods for an intermediate node in the IAB network.

Abstract: The disclosure pertains to methods and apparatus for performing handover by a relay Wireless Transmit/Receive Unit (WTRU) from a source parent WTRU to a target parent WTRU in a wireless network comprising: obtaining uplink data determining, a channel quality for a first link between the relay WTRU and the source parent WTRU, and a channel quality for a second link between the relay WTRU and the target parent WTRU; sending, the uplink data via the first link and the second link based on any of: (1) the determined channel quality for the first link, (2) the determined channel quality for the second link, and/or (3) load conditions; and sending, to a child WTRU served by the relay WTRU via a third link, information indicating a handover of the relay WTRU from the source parent WTRU to the target parent WTRU.