Abstract: Methods and apparatus to handle unordered signaling radio bearer (SRB) packets are disclosed. In some aspects, the apparatus may be a user equipment (UE) or a base station. The apparatus may receive a signaling radio bearer (SRB) packet, buffer it in a radio link control (RLC)-to-Packet Data Convergence Protocol (PDCP) reordering window, and selectively forward or discard the SRB packet based upon a reordering timer with a first expiration period that is greater than a second expiration period associated with a data radio bearer (DRB) reordering timer, to give the apparatus extra time to receive a missing SRB packet while maintaining a shorter latency for DRB packets. In some aspects, the apparatus may detect an out-of-order (OOO) SRB packet and request retransmission without waiting for a sending communications device to check on receive status.

Abstract: Some aspects described herein relate to reducing a delay in the retransmission of undelivered capability information segments. For example, when transmitting capability information via multiple segments, a UE may request the network to acknowledge each segment and/or may modify a network configured parameter to reduce the delay in retransmitting undelivered segments. In some aspects, a UE may attach to a network for a priority service, such as an emergency service or a short message service. In connection with the attachment, the UE may provide a reduced set of capability information that is relevant to the priority service and that omits at least some capability information irrelevant to the priority service.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive from a first cell of a non-terrestrial network (NTN), a broadcast signal indicating respective parameters associated with the first cell and one or more target cells of the NTN that are different from the first cell. In some examples, the respective parameters associated with cell selection or cell reselection. The UE may store the respective parameters associated with the one or more target cells of the NTN. The UE may perform a cell selection procedure or a cell reselection procedure with a first target cell of the one or more target cells of the NTN using stored respective parameters associated with the first target cell.

Abstract: Some aspects described herein relate to reducing a delay in the retransmission of undelivered capability information segments. For example, when transmitting capability information via multiple segments, a UE may request the network to acknowledge each segment and/or may modify a network configured parameter to reduce the delay in retransmitting undelivered segments. In some aspects, a UE may attach to a network for a priority service, such as an emergency service or a short message service. In connection with the attachment, the UE may provide a reduced set of capability information that is relevant to the priority service and that omits at least some capability information irrelevant to the priority service.

Abstract: Methods, systems, and devices for wireless communications are described in which a user equipment (UE) may establish a connection with a network entity and transition to an inactive state in which a security context associated with the connection between the network entity and the UE is maintained. The UE may determine, based on a presence of data for transmission via the connection while in the inactive state, that one or more parameters associated with the connection meet a threshold criteria, and transmit the data via the connection while in the inactive state. The threshold criteria may be, for example, a cell energy of a serving cell associated with the connection, and an amount of data to be transmitted may be below a size threshold associated with a small data transmission.

Abstract: Methods, systems, and devices for wireless communications are described. A network entity may support communications with a user equipment (UE) that is moving at a first speed that meets or exceeds a threshold via a cell that is configured to support such communications, which may be referred to as a high speed train (HST) cell. The network entity and the UE may support cell acquisition that prioritizes camping on an HST cell over a non-HST cell. The UE and the network entity may communicate acquisition signaling associated with establishing a connection with the network entity using a first frequency associated with an HST cell and a non-HST cell. Based on an identifier indicating that the HST cell is an HST cell, the UE may prioritize the HST cell over the non-HST cell during cell acquisition and establish the connection with the network entity via the HST cell.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may detect that a radio access technology (RAT) of a first cell on which a first subscription of the UE is configured to camp is same as the RAT of a secondary cell group (SCG) on which a second subscription of the UE that is in a dual connectivity mode is configured to camp. In some instances, the UE may then trigger, in response to the detecting, the first subscription or the second subscription of the UE to perform a mode operation of the second subscription or the first subscription, respectively.

Abstract: Methods, systems, and devices for wireless communications manager are described. An example method for wireless communication at a UE includes receiving a request for a frequency band capability of the UE from a network, wherein the request includes a plurality of network frequency bands. The method may also include selecting a subset of frequency band combinations from a plurality of frequency band combinations supported by the UE, wherein a numerical quantity of the plurality of frequency band combinations supported by the UE exceeds a size constraint of a capability message, and wherein the subset includes at least one frequency band combination for each network frequency band. The method may also include sending the capability message in response to the request that includes an indication of the subset of frequency band combinations.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may detect a condition associated with a frequency band for the UE. Accordingly, the UE may trigger a tracking area update or a registration update based at least in part on detecting the condition. Alternatively, the UE may trigger a registration update based at least in part on detecting the condition. Numerous other aspects are described.

Abstract: A method of wireless communication by a user equipment (UE) includes receiving, from a network, a capability request including a frequency band filter. The method further includes retrieving, from a server, a prioritized list of frequency band combinations based on a location of the UE. The method still further includes transmitting, to the network, the prioritized list adjusted based on the frequency band filter, in response to the capability request. A method of wireless communication by a network device includes receiving, from a UE, a request for a list of frequency band combinations based on a location of the UE. The method further includes transmitting, to the UE, a prioritized list of frequency band combinations for the location of the UE. The prioritized list is based on a selected network configured frequency band combination associated with the location of the UE.

Abstract: Certain aspects of the present disclosure provide a method for wireless communications by a user equipment (UE), generally including receiving, from a network entity, information regarding candidate cells configured for conditional handover (CHO), determining, based on the information regarding the candidate cells, an order to scan frequencies for an acquisition database based scan, and performing the acquisition database based scan in the determined order.

Abstract: The aspects described herein provide a user equipment (UE) for wireless communication with improved cell reselection performance A UE receives cell information for a plurality of cells and processes the received cell information to determine one or more cells of the plurality of cells having enabled power-saving features, based on an acquisition database. The UE prioritizes an order of cell selection, using the processed cell information, based on one or more cells having a largest number of enabled power-saving features. The UE then selectively communicates with at least one cell, based on the prioritized order, when the UE is in a configured operating condition.

Abstract: Methods, systems, and devices for wireless communications are described. The method includes receiving, from a first base station, control signaling indicating one or more frequency bands on which one or more neighbor base stations operate that are associated with a first geographic location of the first base station, performing, based on the control signaling, a frequency scanning procedure using at least one frequency band of the one or more frequency bands to select a first neighbor base station of the one or more neighbor base stations, and establishing connectivity with the first neighbor base station based on the frequency scanning procedure.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) associated with a first subscription and a second subscription may establish a connection with a base station, the first subscription in a connected state. The UE may use the first subscription to perform a communication activity with the base station while the first subscription is in the connected state. Upon completion of the communication activity, the UE may transmit UE assistance information (UAI) to the base station indicating a preference of the UE to switch the first subscription to an inactive state in response to a release message from the base station.

Abstract: Methods, systems, and devices for wireless communications are described in which a user equipment (UE) may establish a connection with a network entity and transition to an inactive state in which a security context associated with the connection between the network entity and the UE is maintained. The UE may determine, based on a presence of data for transmission via the connection while in the inactive state, that one or more parameters associated with the connection meet a threshold criteria, and transmit the data via the connection while in the inactive state. The threshold criteria may be, for example, a cell energy of a serving cell associated with the connection, and an amount of data to be transmitted may be below a size threshold associated with a small data transmission.

Abstract: The aspects described herein are directed to an apparatus supporting a combination of frequency bands including a first frequency band associated with a primary cell (PCell) and at least a second frequency band associated with a secondary cell (SCell). The apparatus may prune out measurements of frequency bands associated with the SCell, where the frequency bands associated with the SCell may not be supported or deployed at the apparatus when the PCell is too weak. The apparatus measures the first frequency band associated with the PCell and measures the second frequency band associated with the SCell if the measurement of the first frequency band is greater than or equal to a threshold. The apparatus transmits a report including at least the measurement of the first frequency band.

Abstract: A method of wireless communication at a user equipment (UE), including: generating a first set of frequencies to search for signals from at least one candidate cell from which the UE may receive wireless service with respect to a first subscriber identity module (SIM); generating a second set of frequencies to search for signals from the at least one candidate cell from which the UE may receive wireless service with respect to the first SIM; scanning for one or more signals from the at least one candidate cell including tuning a first transceiver configured to operate in accordance with the first SIM to one or more of the first set frequencies; and scanning for one or more signals from the at least one candidate cell including tuning a second transceiver configured to operate in accordance with a second SIM to one or more of the second set of frequencies.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may perform a first scan procedure for a first of radio frequency bands according to a default scanning order at a first subscription of the UE, store an indication of a subset of radio frequency bands of the first set of radio frequency bands for the first scan procedure, and perform a second scan procedure for a second set of radio frequency bands according to a modified scanning order based on the stored indication of the subset of radio frequency bands. In some cases, the UE may determine a relevance of the stored indication of the subset of radio frequency bands of the first set of radio frequency bands and determine the modified scanning order based on the relevance of the stored indication.

Abstract: Certain aspects of the present disclosure provide techniques for wireless communication by a user equipment (UE), comprising receiving, from a network entity, at least one protocol data unit (PDU) segment of a set of PDU segments of a PDU, and in response to the receiving, processing the at least one PDU segment prior to receiving every PDU segment of the PDU.

Abstract: Methods, systems, and devices for wireless communications are described. Implementations described herein support prioritization of cells that are configured at the UE over neighboring cells (e.g., that are unconfigured) for cell reselection while the UE is in an inactive state. The UE may receive system information that indicates a cell reselection priority for evaluating a plurality of cells. The system information may indicate that the neighboring cell is assigned a higher priority than a cell of a master cell group or a cell of the secondary cell group that are configured at the UE. The UE may perform a cell reselection procedure that prioritizes reselection of the master cell group cell, the secondary group cell, or both over the neighboring cell and establish a connection with one of the plurality of cells based on a result of the cell reselection procedure.