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:
Various aspects relate to acquisition of system information (SI). In some examples, a UE uses a guard timer to control how long the UE attempts to acquire a particular type of SI. In some examples, a UE that has entered a cell may determine whether there are any remaining paging occasions (e.g., that may indicate an SI update) during a period of time. If there is an insufficient number of paging occasions remaining (e.g., zero or one), the UE may monitor for broadcast SI. In some examples, after sending a request for SI to a base station, a UE may also periodically monitor for SI broadcast by the base station (e.g., to avoid potential delays in obtaining the SI). In some examples, if a UE does not acquire SI, the UE may use default SIB information (e.g., that expedites reselection to another cell).
Abstract:
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a synchronization signal block associated with a first channel number as part of a scan, wherein the synchronization signal block indicates a second channel number corresponding to a cell-defining synchronization signal block. The UE may attempt acquisition for the cell-defining synchronization signal block at an elevated priority level based at least in part on the synchronization signal block indicating the second channel number. Numerous other aspects are provided.
Abstract:
A system and method of performing a handover include detecting an out of sync event while being connected to a current cell, determining whether a measurement report time-to-trigger signal is active, sending, in response to the detection of the out of sync even and the measurement report time-to-trigger signal being active, a first new measurement report and a first special cause flag prior to a next scheduled measurement report to the communication network, receiving a first list of one or more neighboring cells suitable for a handover, identifying a first neighboring cell from the first list for the handover, and attempting to perform the handover from the current cell to the first neighboring cell.
Abstract:
Certain aspects of the present disclosure provide methods and apparatus for implementing extended signaling in wireless communications. An example method generally includes generally includes receiving, from a base station, an indication of an ability to support communications using extended signaling not defined by a radio access technology (RAT) standard and a grant of resources sized to accommodate extended signaling from the UE, transmitting, to the base station, an indication that the UE supports communications with the base station using extended signaling, and communicating with the base station using extended signaling. Numerous other aspects are provided.
Abstract:
A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives a request to receive a Multimedia Broadcast Multicast Service (MBMS) service associated with a service area identity (SAI) and a second frequency. The apparatus performs inter-frequency cell reselection from a first cell transmitting at a first frequency to a second cell transmitting at the second frequency, the second cell being an inter-frequency neighbor cell to the first cell. The apparatus receives system information from the second cell. The apparatus determines that the second cell transmitting at the second frequency is unassociated with the SAI based on the received system information. The apparatus blacklists the SAI on the second frequency in a blacklist for at least a period of time upon determining that the second cell is unassociated with the SAI.
Abstract:
Disclosed are techniques for wireless communication. In an aspect, information associated with a Positioning System Information Block (PosSIB) is updated based on a UE-determined PosSIB-update periodicity, a UE-determined post-PosSIB decoding time offset, a PosSIB update schedule for a PosSIB group to which the PosSIB of the first type belongs, or any combination thereof. In another aspect, a system information block 1 (SIB1) for each PosSIB in a set of PosSIBs is received by UE. Each PosSIB in the set of PosSIBs is associated with a different PosSIB type, and each SIB1 comprises a value tag and an expiration timer for a respective PosSIB in the set of PosSIBs. Each PosSIB in the set of PosSIBs in accordance with the value tag and the expiration timer of the respective SIB1.
Abstract:
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may perform measurements on a plurality of cells. The UE may order the plurality of cells based at least in part on multiple factors including at least a cell selection condition, the cell selection condition indicating a threshold for the measurement for cell selection. The UE may select, based at least in part on the ordering, a cell from the plurality of cells. The UE may camp on the selected cell. Numerous other aspects are provided.
Abstract:
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may be configured with two subscriptions. The first subscription may support dual connectivity with one or more cell groups, such as a master cell group (MCG) and a secondary cell group (SCG), while a second subscription may not support dual connectivity. Each subscription may support communications with one or more radio access technologies (RAT). The UE may use the protocol stack for a RAT in the first subscription to receive idle-mode signaling, such as one or more paging messages, from the second subscription using the same RAT.
Abstract:
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may establish, in a communication mode, a communication connection with a first radio access technology (RAT) or a second RAT. The UE may receive or identify an indication to deprioritize the first RAT. The UE may perform, based at least in part on the indication to deprioritize the first RAT, an action to deprioritize the first RAT, where the action is based at least in part in the communication mode. Numerous other aspects are described.