Abstract: A wireless device transmits uplink control information (UCI) based on an uplink control channel transmission, with the UCI, overlapping in time with at least one repetition of repetitions of an uplink shared channel transmission. The UCI is transmitted in a first repetition, of the repetitions, associated with a first spatial domain transmission filter and a second repetition, of the repetitions, associated with a second spatial domain transmission filter.

Abstract: A method of performing channel estimation of a physical downlink control channel (PDCCH) in a wireless communication system is disclosed. Specifically, the method performed by a user equipment (UE) includes receiving a synchronization signal block (SSB) from a base station, receiving system information (SI) from the base station based on the SSB, transmitting a physical random access channel (PRACH) preamble to the base station, receiving a response to the PRACH preamble from the base station, transmitting UE capability information related to the channel estimation to the base station, receiving information for a PDCCH monitoring duration from the base station, and performing the channel estimation based on the information for the PDCCH monitoring duration. The UE capability information includes information for a maximum number of control channel elements (CCEs) that are capable of the channel estimation per PDCCH monitoring duration.

Abstract: A wireless device receives messages comprising parameters of a multicast and broadcast service (MBS) session. The parameters indicate hybrid automatic repeat request (HARQ) feedback operations. The HARQ feedback operations comprise a first feedback operation with HARQ feedback being enabled; and a second feedback operation with the HARQ feedback being disabled. A downlink control information (DCI) indicates one of the first or the second feedback operation. The wireless device receives a first DCI scheduling a transport block (TB) of the MBS session; and indicating the first feedback operation. The wireless device transmits, based on the first DCI indicating the first feedback operation, a first HARQ feedback for the TB.

Abstract: The present invention provides methods for controlling transmission of a sounding reference signal (SRS) in a wireless access system supporting machine type communication (MTC) and devices for supporting same. A method for controlling transmission of an SRS by an MTC terminal in a wireless access system supporting MTC, according to an embodiment of the present invention, can comprise the steps of: receiving an upper layer signal comprising information about an SRS which is to be repeatedly transmitted; configuring the SRS on the basis of the information about the SRS; and transmitting the SRS by means of a subband to which a physical uplink shared channel (PUSCH) is allocated and which is being frequency hopped. The subband comprises six physical resource blocks (PRB), and the SRS can be sequentially transmitted to the subband being frequency hopped.

Abstract: A communication device may use a channel access procedure to determine channel availability for signal transmission. The communication device may select a channel access procedure, among a plurality of channel access procedures, based on a beam indication from a base station and a transmission beam to be used for the signal transmission.

Abstract: A wireless device receives downlink control information (DCI) comprising one or more fields set to one or more values. The wireless device validates, based on the one or more values, the DCI as an activation or a release of a configured grant of a bandwidth part (BWP) of BWPs of a cell. The wireless device transmits, based on validating the DCI, a confirmation of receiving the DCI, wherein the confirmation comprises an identifier of the BWP and an identifier of a sub-band of a plurality of sub-bands of the BWP.

Abstract: A wireless device may receive one or more configuration parameters. The one or more configuration parameters indicate: one or more physical uplink control channel (PUCCH) resources, and a default beam is used for physical uplink shared channel (PUSCH) transmissions. The wireless device may receive downlink control information (DCI), with DCI format 0_0, scheduling a PUSCH. The wireless device may transmit, via the PUSCH, a transport block according to a default spatial relation in response to: a DCI format of the DCI being the DCI format 0_0, the configuration parameters indicating that the default beam is used, each PUCCH resource of the one or more PUCCH resources not being configured with a spatial relation, and the wireless device being in a radio resource control (RRC) connected mode.

Abstract: A wireless device receives a first downlink control information (DCI) scheduling transport blocks (TBs) via physical downlink shared channels (PDSCHs) in slots, wherein the first DCI comprises a hybrid automatic repeat request (HARQ) feedback timing indicator indicating an inapplicable value and a first PDSCH group index for the PDSCHs. After receiving the TBs in the slots, the wireless device receives a second DCI indicating a second PDSCH group index; and transmits HARQ feedback information for the TBs in response to: the HARQ feedback timing indicator, of the first DCI, indicating the inapplicable value and the first PDSCH group index of the first DCI being equal to the second PDSCH group index of the second DCI.

Abstract: In some embodiments, a wireless device transmits, in response to triggering a 2-step random access (RA) procedure, a message A including a preamble and a transport block. The wireless device receives a message B including a RA response that indicates a first number of times to repeat transmission of a hybrid acknowledgement repeat request (HARQ) feedback corresponding to the message B. Then, the wireless device repeats transmission, via an uplink control channel, the HARQ feedback the first number of times.

Abstract: A base station receives a first message, from a wireless device and for a random access procedure, comprising a contention resolution identifier of the wireless device. The base station transmits, via a first slot indicated by downlink control information (DCI), a first response of the first message, wherein the first response comprises the contention resolution identifier and indicates a slot offset and a start symbol. The base station transmits a second response of the first message from the start symbol of a second slot, wherein the second slot is based on a time offset and the slot offset with respect to the first slot.

Abstract: A wireless device may transmit a message indicating that a first reference signal (RS) is a candidate beam for a beam failure recovery procedure. Based on a downlink transmission configuration indicator (TCI) state and an uplink TCI state being associated with the same second RS, the wireless device may replace the second RS with the first RS for the uplink TCI state. The wireless device may transmit uplink signals based on the first RS of the uplink TCI state.

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: A wireless device may receive one or more messages comprising one or more configuration parameters comprising a pathloss reference signal update parameter that enables an activation command to update pathloss reference signals of an uplink channel. Based on the one or more configuration parameters comprising the pathloss reference signal update parameter, the wireless device may determine, for a power headroom report, a pathloss reference signal mapped to a sounding reference signal resource indicator (SRI)-physical uplink shared channel (PUSCH) power control parameter set with an SRI-PUSCH power control parameter set index equal to zero. The wireless device may transmit the power headroom report computed based on a pathloss estimation of the pathloss reference signal.

Abstract: A second control plane function (CPF) receives, from a first CPF, a request for a handover for a session of a wireless device. The handover request indicates an internet protocol (IP) address, of the wireless device, used by a first user plane function (UPF). The handover request indicates to maintain the IP address of the wireless device. The second CPF sends, to a second UPF, a user plane session request message comprising the IP address.

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 includes one or more processors and memory storing instructions that, when executed by the one or more processors, cause the wireless device to transmit, to a base station, a radio resource control (RRC) message including information of radio access capabilities of the wireless device, wherein the information, per frequency band, includes a first parameter indicating whether the wireless device supports skipping physical downlink control channel (PDCCH) monitoring for power saving operations and a second parameter indicating whether the wireless device supports switching PDCCH monitoring among search space groups (SSGs) for the power saving operations.

Abstract: A wireless device receives, based on a first reference signal (RS), first downlink signals via a first cell and a second cell. The wireless device triggers, in response to detecting a first beam failure of the first cell, a beam failure recovery (BFR) for the first cell. The wireless device transmits a message indicating a second RS as a candidate beam for the BFR. Based on completing the BFR for the first cell, the wireless device resets a first beam failure instance (BFI) counter for the first cell and a second BFI counter for the second cell. The wireless device receives, based on the second RS, second downlink signals via the first cell and the second cell.

Abstract: A wireless device transmit a first message comprising a first preamble and a first transport block. The first transport block comprises a contention resolution identifier of the wireless device. The wireless device receive a first random access response to the first message. The first random access response comprises the contention resolution identifier. The wireless device starts a first time window in response to receiving the first random access response. The wireless device monitor, during the first time window, a downlink channel for a second random access response to the first message. The wireless device determines a failure to receive the second random access response during the first time window. The wireless device transmits a second message comprising a second preamble in response to the failure.

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 receives radio resource control (RRC) messages comprising configuration parameters comprising: a first physical downlink shared channel (PDSCH) time domain allocation list associated with a first downlink control information (DCI) format for scheduling a PDSCH in a slot; and a second PDSCH time domain allocation list associated with a second DCI format for scheduling multiple PDSCHs in multiple slots. The wireless device receives a first DCI with the second DCI format indicating a first entry of the second PDSCH time domain allocation list, and receives transport blocks (TBs), in first slots and via PDSCH resources, determined based on the first entry, wherein each of the TBs is associated with a respective hybrid automatic repeat request process.