Abstract: A wireless device may output a first message or a compression context message. The first message may include (a) a first payload associated with a first RTP-SN, (b) the first RTP SN, and (c) a first PDCP SN that is incrementally synchronized with the first RTP SN. The compression context message may include an indicator of compression context between the first RTP SN and the first PDCP SN. The wireless device may obtain a confirmation that a compression context between the first RTP SN and the first PDCP SN is established at a receiver. In response, the wireless device may output a second message. The second message may have a second payload associated with a second RTP SN and a second PDCP SN that is incrementally synchronized with the second RTP SN. The second message does not comprise a ROHC header having an RTP SN field.

Abstract: This disclosure provides methods, components, devices and systems for enhanced downlink and uplink scheduling based on assistance information related to PDCP status reports. Some aspects specifically relate to a wireless communication system including a disaggregated base station architecture in which a CU provides a DU assistance information related to PDCP status reports from which assistance information the DU may determine appropriate downlink or uplink scheduling start timing for a UE. In some examples, the DU obtains from the CU assistance information indicating an unreceived PDCP SDU at a UE or the CU, and sends downlink data or an uplink grant to the UE based on the assistance information. The CU may deliver the downlink data to the DU prior to sending the assistance information or obtain uplink data from the DU after sending the assistance information. Duplication of PDCP SDU transmissions and unnecessarily extended scheduling delays may thus be minimized.

Abstract: A method, apparatus and computer-readable medium for transmitting a medium access control (MAC) protocol data unit (PDU) including one or more MAC service data units (SDUs) of a logical channel; and transmitting a first type of MAC subheader including or excluding first logical channel identifier (LCID) information and including or excluding first length information, wherein a first size of the first LCID information is equal to or smaller than a second size of second LCID information of a second type of MAC subheader that is different than the first type of MAC subheader, and a third size of the first length information is equal to or smaller than a fourth size of second length information of the second type of MAC subheader.

Abstract: Certain aspects of the present disclosure provide techniques for radio link monitoring, failure detection, and recovery in terrestrial network (TN)-non-terrestrial network (NTN) architectures. A method includes determining one or more conditions of a user equipment (UE) and based on the one or more conditions of the UE, adjusting a timing for performing one or more steps of a radio link monitoring, failure detection, or recovery process for a radio link of one or more cells.

Abstract: This disclosure provides systems, methods and apparatus for a signaling mechanism associated with activating a secondary cell (SCell) for uplink control information (UCI), including under circumstances in which the SCell is deactivated and belongs to a timing advance group (TAG) lacking a valid timing advance (TA) value. In one aspect, a user equipment (UE) and one or more components of a network entity may employ a signaling mechanism for establishing an SCell as a PUCCH-SCell in scenarios in which the PUCCH-SCell belongs to a secondary TAG (sTAG) lacking a valid TA value. The signaling mechanism may include signaling to directly provide the network entity with beam measurement information associated with one or more SCells of the sTAG or may include singling that the network entity may use to derive the beam measurement information associated with the one or more SCells of the sTAG.

Abstract: A receiver receives a first message including a first PDCP SN. The receiver may receive a second message including a second PDCP SN. The receiver may derive a second RTP SN based on at least one of a first RTP SN of the first message, the first PDCP SN, the second PDCP SN, or an RTP SN field of a second PDCP header composing the second message.

Abstract: Methods, systems, and devices for wireless communications are described. In some examples, a user equipment (UE) may receive a control message indicating one or more parameters associated with selecting one or more cells. The UE may select one or more first cells to monitor for a paging message based on the one or more parameters and may monitor the one or more first cells for the paging message in an idle mode, inactive mode, or any non-connected mode based on the selection. Additionally, the UE may select one of the one or more first cells or a second cell to establish a connection based on monitoring for the paging message and may establish the connection with the one of the one or more first cells or the second cell based on the selection.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine that transmission of one or more first messages, to a wireless device and via a first radio access technology (RAT), does not meet a transmission quality threshold associated with the one or more first messages, wherein the one or more first messages are time domain multiplexed with one or more second messages that are to be transmitted to the wireless device via a second RAT. The UE may adjust a prioritization of the one or more first messages or the one or more second messages to prioritize the transmission of the one or more first messages over the one or more second messages. Numerous other aspects are described.

Abstract: A method of wireless communication at a first wireless device is disclosed herein. The first wireless device monitors at least one radio bearer for RLC segmentation information corresponding to a set of SDUs associated with the first wireless device. The first wireless device transmits, for a second wireless device, at least one RLC SDU that includes a number of encodings based on the RLC segmentation information corresponding to the set of SDUs.

Abstract: A method for wireless communication by a wireless device includes receiving a first bit sequence and a second bit sequence from an upper layer of a wireless communication protocol stack. The first bit sequence is assigned a first class and the second bit sequence is assigned a second class. The second bit sequence is included in a same medium access control (MAC) packet data unit (PDU) as the first bit sequence. The method also includes processing, at a physical layer, the first bit sequence with a first quality of service (QoS) level, and the second bit sequence with a second QoS level that is different from the first QoS level.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to receive, from a network entity, a control message indicating a serving cell group including a set of serving cells usable for wireless communications at the UE. The UE may determine whether to monitor for a multi-cell scheduling message for the serving cell group based on activation states of the set of serving cells of the serving cell group, where the multi-cell scheduling message includes scheduling information for multiple serving cells of the set of serving cells. The UE may then monitor at least a portion of control signaling that includes the multi-cell scheduling message in accordance with the determination.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control signaling that includes an indication of a configuration for wireless communications with a wireless device using a first operating band of a radio frequency spectrum band. The first operating band may include a first carrier that is paired with a second carrier of the first operating band. The first carrier may be separated in frequency from the second carrier and used for one of transmissions from the UE or receptions at the UE, while the second carrier may be used for both transmissions from the UE and receptions at the UE. The UE may use the second carrier for both transmissions and receptions using time division duplexing (TDD) according to the configuration. The UE may concurrently communicate messages with the wireless device using the first carrier and the second carrier.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a group discontinuous reception (DRX) configuration. The UE may receive, based on the group DRX configuration, a notification communication indicative of group handover information associated with a group of UEs that includes the UE. The UE may perform, based on the group handover information, a group handover operation between a source cell and a target cell. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may select a default value for a radio parameter used for communicating with a network node based at least in part on whether the network node is a terrestrial network (TN) node or a non-terrestrial network (NTN) node, an orbit type associated with the network node, or a coverage type associated with the network node. The UE may transmit a communication, e.g., to the network node based at least in part on the default value for the radio parameter. Numerous other aspects are described.

Abstract: A method, apparatus and computer-readable medium for transmitting a medium access control (MAC) protocol data unit (PDU) including one or more MAC service data units (SDUs) of a logical channel; and transmitting a first type of MAC subheader including or excluding first logical channel identifier (LCID) information and including or excluding first length information, wherein a first size of the first LCID information is equal to or smaller than a second size of second LCID information of a second type of MAC subheader that is different than the first type of MAC subheader, and a third size of the first length information is equal to or smaller than a fourth size of second length information of the second type of MAC subheader.

Abstract: A receiver receives a first message including a first PDCP SN. The receiver may receive a second message including a second PDCP SN. The receiver may derive a second RTP SN based on at least one of a first RTP SN of the first message, the first PDCP SN, the second PDCP SN, or an RTP SN field of a second PDCP header composing the second message.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured to buffer communications with a network node. A buffer size of a buffer used to buffer the communications may be specific to a non-terrestrial network (NTN) via which the UE communicates with the network node. For example, the UE may calculate the buffer size based on a maximum data rate of a connection with the network node via the NTN and a radio link control (RLC) round trip time (RTT). The RLC RTT may be specific to NTNs. The UE may use a buffer having the calculated buffer size to buffer the communications between the UE and the network node over the connection.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, a UE capability request message. The UE may transmit, to the base station in response to the UE capability request message, a UE capability information message that indicates one or more UE capabilities associated with one of a non-terrestrial network (NTN), a terrestrial network (TN), or both the NTN and the TN. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine that transmission of one or more first messages, to a wireless device and via a first radio access technology (RAT), does not meet a transmission quality threshold associated with the one or more first messages, wherein the one or more first messages are time domain multiplexed with one or more second messages that are to be transmitted to the wireless device via a second RAT. The UE may adjust a prioritization of the one or more first messages or the one or more second messages to prioritize the transmission of the one or more first messages over the one or more second messages. Numerous other aspects are described.

Abstract: Certain aspects of the present disclosure provide techniques for communicating user equipment (UE) capability information in wireless communication networks. An exemplary method performed by a UE includes receiving, from a network entity, a request for capability of the UE and transmitting, in response to the request, a UE capability message that differentiates sets of features the UE supports in different network types.