Abstract: A computer-readable storage medium stores instructions for execution by one or more processors of a UE. The instructions configure the UE for small data transmission (SDT) in a 5G NR network and cause the UE to perform operations comprising detecting while in an RRC_Inactive state, a radio link failure during a first SDT of UL data to a base station. A secure key for a second SDT is generated based on the radio link failure. A configuration message including an indication of the second SDT is transmitted to the base station. A response message including a UL grant is received from the base station. The UL data is encoded for the second SDT using the secure key. The second SDT is performed using the UL grant while the UE is in the RRC_Inactive state.

Abstract: Various embodiments herein provide techniques for low power, high accuracy positioning (LPHAP) in a wireless cellular network. For example, the techniques may be used for a user equipment (UE) in RRC_INACTIVE and/or RRC_IDLE mode. In some embodiments, the UE may notify the network of a LPHAP requirement and/or capability. This may enable the network (e.g., location management function (LMF) and/or next generation Node B (gNB) to perform positioning in a power efficient way.

Abstract: Methods, systems, and storage media are described for configuring RACH parameters in a cell in order to achieve the optimal RACH performance. In particular, some embodiments relate to determining RACH parameters based on RACH optimization targets. Other embodiments may be described and/or claimed.

Abstract: Embodiments of a User Equipment (UE), Next Generation Node-B (gNB), Evolved Node-B (eNB) and methods of communication are generally described herein. The UE may determine, based on one or more detected synchronization signals, a reference timing to be used for a common synchronization of Long Term Evolution (LTE) sidelink communication on an LTE PC5 interface and New Radio (NR) sidelink communication on an NR PC5 interface in accordance with time division multiplexing (TDM) operation, wherein subframe boundaries of the LTE PC5 interface and the NR PC5 interface are aligned in time. If the UE detects, during a time period, an in-device conflict between a service configured for the LTE PC5 interface and a service configured for the NR PC5 interface, the UE may determine which of the services to support during the time period based on corresponding priorities.

Abstract: Various embodiments herein provide techniques related to sidelink relay enhancements in a cellular network. In some embodiments, a UE may include circuitry configured to identify, from a gNodeB (gNB) of a serving cell to which the UE and one or more relay UEs belong, a medium access control (MAC) control element (CE); and identifying, based on the MAC CE, that the UE is to communicate with the gNB via multipath communication. Other embodiments may be described and/or claimed.

Abstract: Various embodiments herein provide techniques for small data transmission of a user equipment (UE) in a radio resource control (RRC) inactive state. The techniques may be used with a next generation Node B (gNB) that employs a distributed unit (DU)/centralized unit (CU) split. The DU receives, from the UE in the RRC inactive state, data and processing information for processing for the data, processes the data based on a radio link control (RLC) bearer, and sends the processed data to the CU.

Abstract: Beamforming measurement techniques based on PSS/SSS are disclosed. An apparatus of a user equipment (UE) can include processing circuitry configured to decode a configuration message from a source serving cell, the configuration message indicating signal selection criteria for cell measurement reporting. A synchronization signal (SS) burst set associated with one or more transmission/reception points (TRPs) within a neighboring cell is decoded, the SS burst set including a plurality of SS blocks. A cell beamforming measurement signal associated with the neighboring cell is generated, based on signal measurements of the SS blocks and the signal selection criteria. A radio resource management (RRM) measurement report message is encoded for transmission to the serving cell, the measurement report message including the cell beamforming measurement signal. A handover command message for initiating a handover to the neighboring cell is decoded, the handover command based on the cell beamforming measurement signal.

Abstract: Methods, systems, and storage media are provided for exiting conditional handovers and for estimating a user equipment mobility state. Other embodiments may be described and/or claimed.

Abstract: Methods, systems, and storage media are provided for exiting conditional handovers and for estimating a user equipment mobility state. Other embodiments may be described and/or claimed.

Abstract: Technology for a Next Generation NodeB (gNB) operable to encode a primary synchronization signal for transmission to a user equipment (UE) is disclosed. The gNB can identify a sequence d(n) for a primary synchronization signal. The sequence d(n) can be defined by: d(n)=1?2s(n), where s(n) is a maximum run length sequence (m-sequence) and s(n) is provided as s(n+7)=(s(n+4)+s(n))mod 2, where 0?n?127. The gNB can generate the primary synchronization signal based on the sequence d(n). The gNB can encode the primary synchronization signal for transmission to the UE.

Abstract: Technology for a Next Generation NodeB (gNB) operable to encode a primary synchronization signal for transmission to a user equipment (UE) is disclosed. The gNB can identify a sequence d(n) for a primary synchronization signal. The sequence d(n) can be defined by: d(5 n)=1.2s(n), where s(n) is a maximum run length sequence (msequence) and s(n) is provided as s(n+7)=(s(n +4)+s(n)) mod 2, where 0.n.127. The gNB can generate the primary synchronization signal based on the sequence d(n). The gNB can encode the primary synchronization signal for transmission to the UE.

Abstract: Embodiments may be directed to techniques to process a handover command message received from a source next generation node B (gNB), the handover command message comprising random-access channel (RACH) configuration information and determine at least one of dedicated RACH resources and common RACH resources to access a target gNB based on the RACH configuration information. Embodiments also include techniques to cause, via an interface, one or more attempts to access the target gNB utilizing at least one of the dedicated RACH resources and the common RACH resources.

Abstract: Methods and systems are provided to indicate assistance information for radio access technologies to support interface selection for New Radio (NR) Vehicle-to-Everything (V2X) processes. An upper layer entity exchanges information with lower layer entity while the upper layer can continue to use the existing interface for V2X transmission until it is not able to use the current interface. The upper layer can be a V2X layer and the lower layer can be an Access Stratum (AS) layer. The upper layer can request availability information from the lower layer for other applicable interfaces. The upper layer then instructs the lower layer to provide assistance information for one or more applicable interface(s), depending on whether mapped to the ongoing service. In providing availability information, the lower layer can continuously measure criteria, such as channel conditions, to determine the availability of relevant interfaces and indicate the availability information to the upper layer.

Abstract: A method for unicast communication over sidelink includes transmitting a direct communication request message from a source user equipment (UE) to one or more destination UEs. A direct communication response is received at the source UE from at least one of the one or more destination UEs, with the response including context information and a destination sidelink ID for the at least one UE. The context information of the at least one UE is stored in association with an ID pair comprising the destination sidelink ID and a source sidelink ID.

Abstract: An approach is described for a user equipment (UE) to provide vehicle-to-everything (V2X) communication in a 5G new radio (NR) network. The UE includes processor circuitry that mode switches between two modes of resource allocation for the V2X communication, the two modes being a first mode and a second mode, wherein the first mode is a network scheduled resource allocation mode, and the second mode is a UE autonomous resource allocation mode. The UE also includes radio front end circuitry that communicates with a second UE using a V2X sidelink in the first mode or the second mode.

Abstract: A service device (e.g., a user equipment (UE), or other network component) can operate to generate sidelink communications with peer UE vehicle-to-vehicle devices based on PC5 channel to enable a peer-to-peer communication as part of PC5 vehicle-to-everything (V2X) communications. An admission control scheme or a congestion control scheme can be enabled by determining a configured mapping based on various criteria, including a priority of V2X services, V2X packet Quality of Service (QoS) indications per packet, or other criteria. A UE can determine whether a packet is authorized via the sidelink channel based on the configured mapping.

Abstract: Some embodiments of this disclosure include apparatuses and methods for sidelink connection establishment design to support unicast and groupcast communication for NR V2X in a wireless communication system. The apparatuses and methods include at least generating an announcement of support for a unicast or a groupcast communication for a vehicle-to-everything (V2X) service, generating one or more connection establishment request messages for a secure link establishment to a second UE, to support a V2X communication to enable the V2X service, where the one or more connection establishment request message includes: a first connection establishment request message that is transmitted over a PC5-S interface, and a second connection establishment request message that is transmitted over a PC5-RRC interface. The apparatuses and methods further include at least processing a response message from the second UE that accepts or rejects the connection establishment request message for the secure link establishment.

Abstract: This disclosure relates to embodiments New Radio (NR) vehicle-to-everything (V2X) communication. Some of embodiments generate system information block (SIB) messages having configurations for V2X communication modes, and transmit the SIB messages to a user equipment (UE). V2X communication modes include unicast, groupcast and broadcast modes. An example configuration includes a sidelink communication using a V2X communication mode.

Abstract: Apparatuses of wireless communication devices are disclosed. An apparatus of a user equipment includes one or more processors configured to start a first timer responsive to detection of a Radio Link (RL) failure, start a second timer and trigger a beam recovery procedure one or more times responsive to expiry of the first timer if RL recovery is not detected, and start a third timer and attempt to find a suitable cell for Radio Resource Control (RRC) connection reestablishment responsive to one or more expiries of the second timer if RL recovery fails. The one or more processors are also configured to go to an RRC idle or inactive state responsive to expiry of the third timer if a suitable cell for RRC connection reestablishment is not found.

Abstract: Some embodiments of this disclosure include apparatuses and methods for supporting resource selection modes and switching between a network scheduled operation mode and an autonomous resource selection mode for resource allocation for data transmission in a wireless communication system.