Abstract: Wireless communications using multiple active resources (e.g., bandwidth parts (BWP)) are described. A predetermined rule may be used to determine on which downlink (DL) BWP of multiple active DL BWPs, and/or on which uplink (UL) BWP of multiple active UL BWPs, a message is to be sent. A wireless device and/or a base station may reduce the quantity of active DL BWPs and/or active UL BWPs to monitor for a response.

Abstract: A system, method and apparatus for mobile communications including is provided. A user equipment (UE) receives measurement configuration parameters including one or more first measurement configuration parameters for handover decisions associated with one or more first services, the one or more first services associated with a first type of service and one or more second measurement configuration parameters for handover decisions associated with one or more second services. The first services are associated with a first type of service and the second services are associated with a second type of service. The UE transmits one or more measurement reports that include the two types of measurement information. The UE then receives a radio resource control (RRC) reconfiguration message indicating a handover to the target cell and establishes a connection with the target cell based on the received the RRC reconfiguration message.

Abstract: Systems, apparatuses, and methods are described for wireless communications. A base station may transmit wireless device-specific downlink control information comprising HARQ feedback to a wireless device. Coordinating a plurality of HARQ feedbacks may result in complicated processing at the base station and/or a delay to schedule a HARQ feedback for the wireless device. The transmission of the downlink control information may not require HARQ feedback from a wireless device. By reducing the transmission of HARQ feedback, the channel capacity utilized for error correction transmissions can be reduced, thereby enhancing resource utilization.

Abstract: A wireless device may transmit a wake up request indicating a request to exit an energy saving state for one or more cells. At least one uplink transmission or at least one downlink transmission is not performed during an energy saving state.

Abstract: A system, method and apparatus for mobile communications including is provided. A user equipment (UE) receives measurement configuration parameters including one or more first measurement configuration parameters for handover decisions associated with one or more first services, the one or more first services associated with a first type of service and one or more second measurement configuration parameters for handover decisions associated with one or more second services. The first services are associated with a first type of service and the second services are associated with a second type of service. The UE transmits one or more measurement reports that include the two types of measurement information. The UE then receives a radio resource control (RRC) reconfiguration message indicating a handover to the target cell and establishes a connection with the target cell based on the received the RRC reconfiguration message.

Abstract: A base station may transmit a first downlink control information (DCI) scheduling a physical downlink shared channel (PDSCH). The first DCI may comprise a feedback timing indicator field. In response to the feedback timing indicator field indicating not to receive a feedback for the PDSCH before transmitting a second DCI, the base station may start a discontinuous reception (DRX) timer with a first value. The base station may transmit, via a downlink control channel, the second DCI while the DRX timer is running.

Abstract: A wireless device may receive a configuration parameter of a time-domain pattern indicating first timings that a first cell in a PUCCH group and second timings, including a transmission timing, that a second cell in the PUCCH group is the cell configured for PUCCH transmission. The wireless device may transmit uplink control information in the transmission timing via the second cell or via the first cell based on the activation or deactivation status of the second cell in the transmission timing.

Abstract: Wireless communications are described. A wireless device and/or a base station may provide improved resource management. A base station may configure and/or transmit a beam failure recovery medium access control control element (BFR MAC CE) to a wireless device to configure particular cells to use particular assigned candidate beams from a pool of shared candidate beams during beam failure recovery operations. The BFR MAC CE may provide orthogonality in beams that may be designated for use by active cells out of a shared pool of beams that may not be orthogonal across all potentially available cells.

Abstract: A wireless device receives one or more messages comprising configuration parameters. The configuration parameters indicate: a first plurality of bandwidth parts (BWPs) of a Uu link; and a second plurality of BWPs of a sidelink. A downlink control information (DCI) is received. The DCI indicates a first BWP of the first plurality of BWPs. The wireless device selects a second BWP, from the second plurality of BWPs, associated with the first BWP. In response to the reception of the DCI: the first BWP is activated; and the second BWP is activated.

Abstract: A method may include receiving, by a wireless device, configuration parameters indicating a switching scheme for switching a first beam and a second beam over physical downlink shared channel (PDSCH) transmission occasions. The method may include receiving downlink control information indicating repetitions of a transport block (TB) via the PDSCH transmission occasions. The method may include receiving, based on the switching scheme, a first repetition of the repetitions of the TB with the first beam via a first transmission occasion of the PDSCH transmission occasions, and a second repetition of the repetitions of the TB with the second beam via a second transmission occasion of the PDSCH transmission occasions.

Abstract: A wireless device communicates, with a base station distributed unit (BS-DU) and via at least one bearer configured between the wireless device and a base station central unit (BS-CU) through the BS-DU, a first adaptation layer packet, wherein a first header of the first adaptation layer packet comprises a route identifier indicating a route. The wireless device receives, from the BS-DU, backhaul link information indicating a failure of a link between the BS-DU and the BS-CU, wherein a second header of a second adaptation layer packet comprises the backhaul link information indicating the failure of the link.

Abstract: Systems, apparatuses, and methods are described for wireless communications. Devices may exchange information regarding a radio link failure and/or a handover. The information may comprise a radio link failure report which may comprise an indication of packet duplication.

Abstract: A wireless device may receive downlink control information (DCI) comprising parameters of a plurality physical uplink shared channel (PUSCH) transmissions of a cell. A wireless device may determine, for a transport block (TB), a first hybrid automatic repeat request (HARQ) process associated with a first PUSCH transmission of the plurality of PUSCH transmissions. In response to a listen-before-talk (LBT) procedure, for the TB of the first PUSCH transmission, indicating a busy channel, the wireless device may transmit the TB via a second PUSCH transmission, of the plurality PUSCH transmissions, associated with a second HARQ process.

Abstract: Wireless resource determination and use are described. A wireless device may determine to use a resource (e.g., PUCCH resource), indicated by control information (e.g., DCI), for sending an acknowledgement (e.g., HARQ-ACK feedback) of a reception of data (e.g., at least one transport block). The control information may be received in a message of a plurality of messages. The wireless device may select the control information (e.g., for determining the resource) from among other control information in the plurality of messages, based on one or more factors.

Abstract: A wireless device transmits, via a first uplink bandwidth part (BWP), a first preamble for a random-access procedure. A determination is made of a second uplink BWP for transmission of a second preamble for the random-access procedure. The determination is based on not receiving, via a first downlink BWP associated with the first uplink BWP, a random-access response corresponding to the first preamble. Based on the determination of the second uplink BWP, the first downlink BWP is switched to a second downlink BWP associated with the second uplink BWP. The second preamble is transmitted via the second uplink BWP.

Abstract: A base station transmits, to a wireless device, configuration parameters indicating: downlink resources of a downlink control channel associated with a slot format indication (SFI) radio network temporary identifier (RNTI), and a discontinuous reception (DRX) operation for the wireless device to monitor the downlink control channel. Based on the downlink resources, a monitoring occasion for the downlink control channel is determined to transmit a downlink control information associated with the SFI RNTI. Regardless of whether the DRX operation is in an active time and during the monitoring occasion, the downlink control channel is transmitted that includes the downlink control information associated with the SFI RNTI and indicating a slot format. Based on the slot format, one or more transport blocks is received from the wireless device.

Abstract: A base station may transmit, to a wireless device, configuration parameters of a first bandwidth part (BWP) and a second BWP of an unlicensed cell. The base station may determine, for the wireless device and with the first BWP being an active BWP, a first number of consecutive listen before talk (LBT) procedures, for a first channel of the active BWP, performed based on a contention window being a maximum contention window of a plurality of contention windows corresponding to the first channel. Based on switching from the first BWP to the second BWP as the active BWP, the base station may determine, for the wireless device, a second number of consecutive LBT procedures, for a second channel of the active BWP, performed based on the contention window being the maximum contention window of a plurality of contention windows corresponding to the second channel.

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 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 method of channel access for sidelink communications in unlicensed bands (SL-U) includes initiating, by a first user equipment (UE), a listen-before-talk (LBT) process in a first timing that is based on a first starting time of a plurality of starting times in a slot and transmitting, by the first UE to a second UE, first sidelink data in response to the initiated LBT process indicating clear channel. The plurality of starting times are pre-configured timings based on cyclic prefix extensions and one starting time, of the plurality of starting times, is based on an automatic gain control (AGC) symbol.