Abstract: Wireless communications are described. A wireless device may receive configuration parameters of an unlicensed cell. The configuration parameters may indicate a starting position in an uplink subframe. The starting position may be based on a listen-before-talk (LBT) period and a timing advance value.

Abstract: A block vector predictor (BVP) may be adjusted to provide a more accurate prediction of a block vector (BV). A coder (e.g., encoder or decoder) may determine that the at least one component of the BVD may be equal to zero (or, e.g., null), for example, based on a position of the Current Block (CB) relative to a boundary of the reference region. Consequently, the encoder may skip signaling, and the decoder may skip parsing, of the at least one component of the BVD in the bitstream.

Abstract: A base station transmits at least one radio resource control message comprising configuration parameters of a cell, the configuration parameters comprising a cell index identifying the cell and an index identifying downlink subcarriers as a pathloss reference signal of the cell. The base station receives, via uplink subcarriers, at least one uplink signal employing an uplink transmission power. A wireless device receives the at least one radio resource control message. The wireless device determines the uplink transmission power for the at least one uplink signal based on measurements of the downlink subcarriers identified by the index.

Abstract: A wireless device receives parameters indicating control resource sets (coresets) grouped into a first coreset group and a second coreset group on a bandwidth part (BWP). Physical downlink control channel (PDCCH) is monitored, on the BWP, in the first coreset group and in the second coreset group. A downlink control information (DCI) is received indicating skipping PDCCH monitoring on the BWP. Based on the DCI being received in a first coreset belonging to the first coreset group, the wireless device: skips monitoring the PDCCH in the first coreset group of the BWP; and skips monitoring the PDCCH in the second coreset group of the BWP.

Abstract: A base station receives, from a wireless device, a wireless device capability message comprising at least one parameter indicating a first physical uplink shared channel (PUSCH) processing capability of the wireless device. The base station determines, based on the first PUSCH processing capability of the wireless device, a PUSCH preparation time indicating a period between a reception time of a downlink control information (DCI) comprising a resource assignment and a PUSCH transmission time of the resource assignment. The base station transmits, to the wireless device, a first DCI indicating a first resource assignment for a first PUSCH transmission, wherein the first resource assignment occurs no earlier than the PUSCH preparation time from when the first DCI is received by the wireless device. And, the base station receives the first PUSCH transmission via the first resource assignment.

Abstract: A wireless device may receive at least one control message. The at least one control message may comprise at least one pathloss reference parameter that may indicate a downlink carrier.

Abstract: A base station transmits to a wireless device configuration parameters of a first bandwidth part (BWP) and a second BWP of an unlicensed cell. The base station determines a first contention window for a first listen before talk (LBT) procedure for the first BWP. The determination of the first contention window being based on hybrid automatic repeat request (HARQ) feedback of one or more transmissions via a first channel of the first BWP. Based on switching from the first BWP to the second BWP, as the active BWP, the base station determines a second contention window for the LBT procedure of a second channel of the second BWP. The second coantention window being the minimum contention window of a plurality of contention windows. Finally, the base station receives, via the second BWP, a transport block based on the second LBT procedure using the second contention window indicating a clear channel.

Abstract: Control information may be used to schedule communications between a wireless device and a base station. The wireless device may monitor control channels associated with one or more cells to receive the control information.

Abstract: A wireless device receives one or more radio resource control messages including: a first processing time threshold, associated with a first power state of a cell, that is applicable to a gap between receiving a transport block (TB) and transmitting an acknowledgement; and a second processing time threshold, associated with a second power state of the cell, that is applicable to a gap between receiving a TB and transmitting an acknowledgement. Based on the first processing time threshold, a first TB received on the cell in the first power state is processed. A command is received indicating transitioning from the first power state to the second power state. In response to transitioning to the second power state and based on the second processing time threshold, a second TB received on the cell is processed.

Abstract: A first wireless device receives, from a second wireless device and via a physical sidelink control channel (PSCCH), sidelink control information that includes a number of demodulation reference signal (DMRS) antenna ports and resource assignment of a physical shared channel (PSSCH) received in one or more first resources. The first wireless device determines a second reference signal received power (RSRP) of the PSSCH based on a measurement of a first RSRP of the PSSCH and at least one of: the number of DMRS antenna ports or measurement of a channel busy ratio (CBR). The first wireless device transmits, via one or more second resources selected based on the second RSRP and that are for transmission within a set of candidate resources, one or more transport blocks via the one or more second resources.

Abstract: Wireless communications may use one or more devices for transmission and/or reception that may lead to potentially harmful exposure. One or more safety measures may be used for wireless communication devices, such as maximum power exposure (MPE) reporting and/or related operations. An MPE report may be sent based on MPE detection and one or more messages, such as for cell activation, bandwidth part (BWP) or other wireless resource activation and/or switching, and/or a discontinuous reception (DRX) or other state transition.

Abstract: A wireless device receives at least one power threshold for selecting one of a first uplink carrier or a second uplink carrier of a cell. The wireless device selects, based on the at least one power threshold and a speed of the wireless device, one of the first uplink carrier and the second uplink carrier as a selected uplink carrier. The wireless device transmits a random access preamble via the selected uplink carrier.

Abstract: A power headroom report (PHR) is transmitted. The PHR comprises a Type 2 power headroom of a primary cell in response to a licensed assisted access cell with an uplink being configured and activated.

Abstract: A wireless device receives configuration parameters of timing advance groups (TAGs) comprising: a primary TAG comprising a primary cell; and a secondary TAG comprising one or more licensed secondary cells and one or more unlicensed secondary cells. Uplink signals are transmitted via the secondary TAG. The transmission timing is derived employing a first secondary cell, of the secondary TAG, that is based on the first secondary cell being: an activated secondary cell; and a licensed secondary cell.

Abstract: A wireless device may select, based on a first group of search space sets for monitoring control resource sets (coresets) and a second group of search space sets for monitoring the coresets, reference signals, associated with the first group of search space sets, for link monitoring in both a first mode and a second mode. In the first mode, the first group of search space sets are monitored and the second group of search space sets are unmonitored. In the second mode, the first group of search space sets are unmonitored and the second group of search space sets are monitored. The wireless device may measure, both in the first mode and the second mode, the reference signals for the link monitoring.

Abstract: Described are embodiments for frequency selective transmission. In an embodiment, a wireless device receives a downlink control information indicating a transmission via uplink resources comprising sub-bands; and a sounding reference signal resource indicator (SRI). The wireless device selects, based on the SRI, one or more sounding reference signal (SRS) resources. Uplink precoders are determined for the transmission. The uplink precoders include an uplink precoder that is determined, for each respective sub-band of the sub-bands, based on a transmission precoder of the one or more SRS resources transmitted via the respective sub-band. The wireless device transmits, based on the determined uplink precoders, a transport block of the transmission via the uplink resources.

Abstract: A base station transmits, to a wireless device, a first maximum total transmit power (TTP) and a second maximum TTP allowed, respectively, for a first cell group and a second cell group of a second radio access technology (RAT) type different from a first RAT type of the first cell group. A total transmission power, based on a first power, for transmitting first uplink signals via the first cell group and not exceeding the first maximum TTP, and a second power for transmitting second uplink signals via the second cell group and not exceeding the second maximum TTP, exceeds a power value. The second uplink signals and not the first uplink signals are received based on a scheduled transmission of the first uplink signals being dropped based on: the total transmission power exceeding the power value, and the first RAT type having lower priority than the second RAT type.

Abstract: In an embodiment a wireless device receives configuration parameters, of a cell, indicating: a first reference signal (RS) of a first transmission reception point (TRP) of the cell; a second RS of a second TRP of the cell; random access channel (RACH) resources of a RACH of the cell; and a power offset value. The wireless device measures a first received power value of the first RS and measures a second received power value of the second RS. The wireless device selects, based on the measuring and the power offset value, an RS from the first RS and the second RS. Then, the wireless device transmits a preamble, associated with the selected RS, via the RACH resources.

Abstract: A wireless device receives, from a first base station associated with a master cell group (MCG) comprising a primary cell (PCell), a radio resource control (RRC) message comprising secondary cell group, SCG, configuration parameters of a primary SCG cell, PSCell, of a second base station. Based on the PCell failing after receiving the SCG configuration parameters and before the SCG configuration parameters of the PSCell are applied, the wireless device performs a cell selection. In response to the selected cell being the PSCell, the wireless device synchronizes with the PSCell based on the SCG configuration parameters.

Abstract: A base station transmits, to a wireless device via a first physical downlink control channel (PDCCH) monitoring occasion of PDCCH monitoring occasions for PDCCH repetition in a slot, a repetition of a downlink control information (DCI) triggering transmission of an uplink signal. The base station receives the uplink signal that is transmitted with a transmission power determined based on a number of symbols: before a starting symbol of the uplink signal and after a last symbol of a second PDCCH monitoring occasion among the PDCCH monitoring occasions of the slot, wherein the second PDCCH monitoring occasion has a latest ending time among ending times of the PDCCH monitoring occasions.