Abstract: Wireless communications for selecting an uplink carrier for a random access procedure are described. A base station may configure a wireless device with one or more uplink carriers associated with a downlink carrier of a cell. The one or more uplink carriers may comprise at least a normal uplink (NUL) carrier and a supplemental uplink (SUL) carrier. The wireless device may measure one or more downlink reference signals and channel occupancy level(s) of an NUL and/or an SUL. The wireless device may select one of an NUL or an SUL for a random access procedure, for example, based on a signal strength of the one or more downlink reference signals and/or the channel occupancy level(s).

Abstract: A first base station distributed unit (BS-DU) receives, from a base station central unit (BS-CU), a first power value for uplink transmission of a wireless device to the first BS-DU. The first BS-DU receives, from the BS-CU, a third power value for uplink transmission of the wireless device to the first BS-DU, wherein the third power value is based on a second power value for uplink transmission of the wireless device to a second BS-DU. The first BS-DU transmits, to the BS-CU, a response confirming addition of the second BS-DU for the wireless device.

Abstract: Wireless communication techniques are described. An access node/device may transmit, to another access node/device, data corresponding to a wireless device. The access node/device may transmit the data along with downlink resource information indicating a radio resource. The other access node/device may use the radio resource to transmit the data to the wireless device. The access node/device may transmit one or more preemption indications to one or more other communication devices to preempt any other transmissions in the radio resource.

Abstract: A user plane function UPF receives, from a SMF, a DU identification information for identifying a plurality of packets for one or more DUs of an application. The UPF receives a first plurality of packets, of the plurality of packets, of a first DU of the application; and a second plurality of packets, of the plurality of packets, of a second DU of the application. The UPF sends, to an access node and using the DU identification information a first GTP container comprising a first GTP header comprising a first number identifying the first plurality of packets, and a second GTP container comprising a second GTP header comprising a second number identifying the second plurality of packets.

Abstract: A wireless device comprising switches to a first downlink bandwidth part (BWP) as an active BWP during a discontinuous reception (DRX) active time. The wireless device, in response to switching to the first downlink BWP, starts a BWP inactivity timer of the first downlink BWP. The wireless device transmits a packet via a transmission interval of periodic resources indicated by a configured grant. The wireless device restarts the BWP inactivity timer at a time based on the transmission interval. The wireless device, in response to an expiration of the BWP inactivity timer, switches to a second downlink BWP as the active BWP during the DRX active time. The wireless device receives a DCI via a physical downlink control channel (PDCCH) of the second downlink BWP.

Abstract: A wireless device may be configured to perform a method. The method may include receiving, by the wireless device, configuration parameters indicating duration values for skipping physical downlink control channel (PDCCH) monitoring on a bandwidth part (BWP). The duration values can be from first values in response to the BWP having a first subcarrier spacing (SCS) and second values in response to the BWP having a second SCS, wherein each value of the second values is equal to multiplication of a respective value, of the first values, and a same granularity value. The method may further include receiving a downlink control information (DCI) indicating skipping PDCCH monitoring on the BWP for a time duration based on a duration value of the duration values. The method may additionally include skipping monitoring the PDCCH on the BWP for the time duration based on the DCI.

Abstract: A wireless device receives, via a first control resource set (coreset) pool of a plurality of coreset pools, a first downlink control information (DCI) indicating no feedback timing for transmission of feedback information of the first DCI. The wireless device receives a second DCI indicating a first physical uplink control channel (PUCCH). The wireless device transmits the feedback information of the first DCI via the first PUCCH, based on the first PUCCH being associated with the first coreset pool via which the first DCI is received.

Abstract: A method may include sending, by a wireless device to an access and mobility management function (AMF) via a first cell, a first registration request message requesting a network slice. The method may also include receiving, by the wireless device from the AMF, a first registration accept message. The message may include a network slice selection assistance information (NSSAI) indicating the network slice and may also include an indication that the network slice is rejected in a tracking area of a registration area. The method may further include, upon a cell change to a second cell, sending, by the wireless device to the AMF via the second cell and based on the indication, a second registration request message requesting the network slice. The method may additionally include receiving, by the wireless device from the AMF, a second registration accept message accepting the network slice.

Abstract: An access and mobility management function (AMF) receives, from a unified data management (UDM), a value for a time duration associated with inactivity of a network slice for a wireless device. The AMF sends, to the wireless device and upon expiration of the time duration, an indication of removal of the network slice.

Abstract: A wireless device receives, from a base station, at least one radio resource control (RRC) message comprising first configuration parameters for a first bandwidth part (BWP) of a first cell, of the base station, that is configured as a serving cell, second configuration parameters of resources of a second cell that is configured as resources of the first BWP of the first cell, and a first time value of a first inactivity timer for the first BWP of the first cell. The wireless device restarts the first inactivity timer for the first BWP of the first cell, in response to communicating a transport block via a configured grant resource of the second cell.

Abstract: A method may include starting, by a wireless device, a small data transmission, SDT, failure detection timer based on initiating an SDT procedure. The method may also include stopping, by the wireless device, the SDT failure detection timer based on non-SDT data arriving during the SDT procedure. The stopping the SDT failure detection timer may be based on transmitting a radio resource control, RRC, message for the non-SDT data arriving during the SDT procedure.

Abstract: Systems, apparatuses, and methods are described for wireless communications. Random access procedures may include various steps, such as 4-steps or 2-steps. One or more indicators such as, for example, transmission power requirements, may be used to indicate which random access procedure to utilize.

Abstract: Wireless communications may comprise communications between a base station and a wireless device. A wireless device may perform beam failure recovery (BFR). Based on an indication of completion of the BFR, the wireless device may determine resources for transmission of uplink signals.

Abstract: Uplink and downlink synchronization procedures are described for wireless communications. A base station may send a reconfiguration message to a wireless device before a random access procedure. The reconfiguration message may set an active uplink index and an active downlink index to the same value.

Abstract: A wireless device receives radio resource control messages indicating: a first maximum total transmit power of a first group comprising first cell(s) of a first frequency band; and a second maximum total transmit power of a second group comprising second cell(s) of a second frequency band. A first total power for transmission of first signal(s) via the first group exceeding the first maximum total transmit power is determined. First transmission power of first signal(s) are scaled so that an updated first total power does not exceed the first maximum total transmit power. Second total power for transmission of second signal(s) via the second group exceeding the second maximum total transmit power is determined. Second transmission power of second signal(s) are scaled so that an updated second total power does not exceed the second maximum total transmit power.

Abstract: A session management function (SMF) receives, from a wireless device, an indication that an always-on packet data unit (PDU) session is requested. The SMF determines to establish the PDU session as an always-on PDU session based on: the indication that the always-on PDU session is requested; and the PDU session being for an ultra-reliable low-latency communication (URLLC) service. The SMF sends, to the wireless device, an indication that the PDU session is to be established as the always-on PDU session.

Abstract: A wireless device receives downlink control information (DCI) indicating a first channel occupancy time (COT) duration associated with a first downlink reference signal (RS). The wireless device transmits, based on a second downlink RS and a listen-before-talk (LBT) type, an uplink signal during the first COT duration. The LBT type is determined among a first LBT type and a second LBT type based on whether the first downlink RS is the same as the second downlink RS.

Abstract: A wireless device receives first downlink control information (DCI) indicating a plurality of channel occupancy time (COT) durations. Each of the plurality of COT durations is associated with a respective downlink RS. The wireless device receives, based on a first downlink RS and during a first COT duration of the plurality of COT durations, a downlink signal. The receiving the downlink signal is in response to the first COT duration being associated with a first downlink RS.

Abstract: A wireless device may communicate via a primary cell comprising a primary control channel, and via a secondary cell comprising a secondary control channel, and may signal a scheduling request for the transmission of information via either of the control channels. A scheduling request prohibit timer may be started for the transmission via either of the control channels.

Abstract: A wireless device receives cross carrier scheduling parameter(s). A first control channel of a first cell carries downlink scheduling information for packets received via a downlink data channel of the first cell. A second control channel of a second cell carries uplink scheduling information for second packets transmitted via an uplink data channel of the first cell. A first DCI for uplink transmission is received via the first cell. A first deactivation timer of the first cell and a second deactivation timer of the second cell are started in response to the first DCI. A second DCI for downlink transmission is received via the first cell. The first deactivation timer and not the second deactivation timer is restarted in response to the second DCI. The first cell is deactivated in response to the first deactivation timer expiring. The second cell is deactivated in response to the second deactivation timer expiring.