Abstract:
Aspects of the present disclosure relate to joint support for UEs capable of communicating data of a same bearer on first and second RATs simultaneously and UEs not capable of communicating data of a same bearer on the first and second RATs simultaneously. An eNB of a first RAT may configure radio bearers of different types for communication with a UE scapable of communicating via a first RAT and a second RAT. The eNB may select one or more of the radio bearers for routing packets to the UE via at least one of the first or second RAT, wherein the selecting is based at least in part on whether the UE is capable of communicating data of a same bearer on the first and second RATs simultaneously. The eNB may communicate with the UE using the selected radio bearers.
Abstract:
Methods and apparatus for routing data bearers of a user equipment (UE) while the UE is handing over or associating to a base station (BS) of a first radio access technology (RAT) while being served by a BS of a second RAT are disclosed. An Xw interface that is used to control offloading and routing of data bearers between base stations of disparate RATs is disclosed. Call flows illustrating the use of the Xw interface and apparatus using the Xw interface are also disclosed.
Abstract:
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information identifying a first scheduling request (SR) configuration associated with beam failure recovery (BFR) and a second SR configuration associated with BFR. The UE may detect a first beam failure associated with a first communication node. The UE may transmit a first SR on a first SR resource indicated by the first SR configuration based at least in part on detecting the first beam failure associated with the first communication node. The UE may detect a second beam failure associated with a second communication node. The UE may selectively transmit a second SR on a second SR resource indicated by the second SR configuration based at least in part on detecting the second beam failure associated with the second communication node and the configuration information. Other aspects are described.
Abstract:
Methods, systems, and devices for wireless communications are described. A user equipment (UE) and/or a master node may use configurations to resume communications with one or more cells of a dual connectivity (DC) or carrier aggregation (CA) scheme. In some cases, the configuration may be used for a secondary cell group (SCG) of the DC scheme. This configuration may include the UE applying a previously stored configuration for the SCG (e.g., including higher-layer and lower-layer configurations of a last serving SN of the DC scheme) if it determines the previously stored configuration is valid. Additionally or alternatively, the configuration may include the network using a previous SCG configuration or reconfiguring the SCG and transmitting this indication in a resume communications message to the UE. In some cases, the network may determine this configuration based on assistance information or reports generated from the UE.
Abstract:
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication to transmit a packet based at least in part on receiving a packet data convergence protocol (PDCP) status report during an active state of a timer, or based at least in part on an expiration of the timer. The UE may transmit the packet based at least in part on the indication. Numerous other aspects are described.
Abstract:
Certain aspects of the present disclosure provide techniques for wireless communications by an apparatus. A method includes sending user equipment (UE) assistance information to a network entity, the UE assistance information comprising information indicative of: a requested length of a requested time window; a requested periodicity at which the requested time window repeats; and a first requested communication configuration for communicating during the requested time window; receiving a communication configuration from the network entity; and communicating according to the communication configuration.
Abstract:
Aspects of the present disclosure relate to wireless communications, and more particularly, to mobility techniques that allow for mobility of a user equipment (UE) between a set of cells. A method that may be performed by a UE includes receiving signaling configuring the UE with a set of cells that support physical (PHY) layer or medium access control (MAC) layer mobility signaling and with a measurement configuration for the set of cells, reporting, to a network entity, measurements for at least some of the set of cells in accordance with the measurement configuration, and receiving, from the network entity, PHY layer or MAC layer mobility signaling to move the UE to one of the cells in the set, wherein the mobility signaling is based, at least in part, on the reported measurements.
Abstract:
Certain aspects of the present disclosure provide techniques for improving a network energy saving (NES) mode. An example method performed by a first user equipment (UE) includes receiving, from a first network entity associated with a source cell, configuration information indicating one or more conditions for executing a conditional handover from the first network entity associated with the source cell to a second network entity associated with a target cell, receiving, from the first network entity associated with the source cell, a trigger signal including a trigger command for the conditional handover, and taking one or more actions related to executing the conditional handover based on the trigger signal and the one or more conditions.
Abstract:
Aspects of the present disclosure provide apparatus, methods, processing systems, and computer readable mediums for a nested conditional mobility procedure. In some cases, a method for wireless communications by a UE generally includes receiving configuration information configuring the UE for conditional handover (CHO) from a source master node (S-MN) to a target master node (T-MN) and for conditional primary secondary cell (PSCell) addition or change (CPAC) and performing a nested procedure based on an evaluation of conditions for both CHO and CPAAC in accordance with the configuration information.
Abstract:
Methods, systems, and devices for wireless communication are described. A target master node of a wireless communications system may receive a handover request that corresponds to a user equipment (UE). The target master node may transmit, responsive to the handover request and to a target secondary node associated with the target master node, via a first message, a secondary node identifier for a source secondary node associated with the source master node. The target master node may receive, via a second message responsive to the first message, information indicative of whether a direct data forwarding path is available between the target secondary node and the source secondary node. The source master node may relay at least one direct data forwarding address to the source secondary node to use for direct data forwarding, for the UE, to at least one of the target master node or the target secondary node.