Abstract:
This disclosure provides systems, devices, apparatus, and methods, including computer programs encoded on storage media, for protocol stacks and bearer modeling for assisted Uu connectivity. A UE and a PN may each establish a first connection with an AN and, based on the first connections with the AN, establish a second connection with each other. Based on a bearer configuration, the UE may determine whether to route data to the PN via the first connection with the AN or directly to the PN via the second connection with the PN. Accordingly, the UE may transmit the data to at least one of the AN or the PN based on the determination of whether to route the data to the PN via the first connection with the AN or directly to the PN via the second connection with the PN.
Abstract:
Certain aspects of the present disclosure provide techniques for relay selection and reselection based on discovery information. An example method generally includes receiving, from a network entity, relay selection assistance information identifying a plurality of relay UEs available for selection by the UE; selecting a first relay UE of the plurality of relay UEs based, at least in part, on the relay selection assistance information; and connecting, via a sidelink, to the selected first relay UE.
Abstract:
Disclosed are techniques for wireless communication. In an aspect, a remote user equipment (UE) initiates a cell selection procedure, initiates, in response to failure of the cell selection procedure, a relay selection procedure, and establishes, in response to discovering a relay UE during the relay selection procedure that is available to provide one or more UE-to-network relay services to the remote UE, a sidelink with the relay UE. In another aspect, a remote UE establishes a first sidelink with a first relay UE to obtain one or more UE-to-network relay services from the first relay UE, performs a relay discovery procedure to determine whether at least one second relay UE is available for relay reselection, and initiates, based on the at least one second relay UE being available for relay reselection, a relay reselection procedure.
Abstract:
Certain aspects of the present disclosure provide techniques for paging in sidelink L2 relay scenarios. An example method generally includes connecting, via a sidelink, to a relay user equipment (UE) connected to a network entity; receiving, from a network entity via the relay UE, configuration information identifying a paging mode for the remote UE; and monitoring for paging from the network entity, in accordance with the identified paging mode.
Abstract:
Aspects of the present disclosure provide techniques for configuring and triggering conditional handover for UE mobility between a direct connection to the base station (Uu connection) and/or a relay connection (PC5 connection). Specifically, the conditional handover configuration may include preparing multiple candidate relay UEs for handover (e.g., from Uu connection to PC5 connection) and conditional handover execution criteria for relay selection (or reselection) for the UE. Similarly, features of the present disclosure provide techniques for conditional handover transition from a PC5 connection back to Uu connection when conditional handover execution criteria are met (e.g., sidelink signal strength between the two UEs falls below a channel condition threshold). Additionally, the techniques provided herein support for conditional handover of the relay UEs from a first base station to a second station while the relay UE is further supporting one or more remote UEs.
Abstract:
Certain aspects provide a method for wireless communication by a user-equipment (UE). The method generally includes determining a configuration of resources for discovery of a relay UE of a plurality of relay UEs, wherein the resources are used by each of the plurality of relay UEs for communication of one or more discovery messages, performing discovery operations to connect with the relay UE in accordance with the configuration, and communicating with a base station through the relay UE after connecting with the relay UE.
Abstract:
In an aspect, a first UE communicates (e.g., transmits and/or receives) traffic of a first type with a second UE via a unicast link. The first UE sets up support for transport of traffic of a second type over the unicast link. The first UE tunnels (e.g., transmits and/or receives) the traffic of the second type between the first UE and the second UE over the unicast link. In another aspect, instead of tunneling the traffic of the second type over the same unicast link, the first UE sets up a second unicast link for traffic of the second type with the second UE, with the unicast links having a shared link management status. In another aspect, a BS allocates a set of resources to support the associated (e.g., bound) unicast link.
Abstract:
Methods (1500, 1600, 1700, 1800, 1900), systems (1000, 1400) and devices (705, 805, 1005, 1105, 1205, 1405) for wireless communications are presented. A method (1500, 1600) may include the following operations. A UE determines to perform a handover from a first source device in a first network to a first target device in the first network and from a second source device in a second network to a second target device in the second network (1505, 1605). The UE identifies a time interval for performing a first random access procedure with the first target device in the first network (1510, 1610). The UE initiates a first random access procedure with the first target device (1515, 1615). The UE performs a second random access procedure successfully with the second target device in the second network during the time interval (1520, 1620). The UE transmits or receives from the target device in the second network before the UE finishes performing the first random access procedure with the first target device in the first network (1525, 1630).
Abstract:
Apparatus and methods for payload adaptation for a mobile device based on a request from the mobile device include determining a communication connection characteristic of the request and obtaining one or more results to generate obtained results responsive to the request. The apparatus and methods further include customizing the obtained results to generate customized results based on the communication connection characteristic and transmitting the customized results to the mobile device.
Abstract:
In an embodiment, an access network monitors traffic, associated with a radio bearer of a given type (e.g., a radio bearer expected to be associated with delay-sensitive and/ or high-priority communication sessions), between a user equipment S lJE) in a dedicated-channel state (e.g., CELL_DCH state) and an application server that is arbitrating a communication session between the UE and at least one other UE. Based on the monitored traffic, the access network selectively transitions the UE away from the dedicated-channel state. For example, if traffic on the radio bearer of the given type is detected before expiration of a timer, the UE can be permitted to remaining in the dedicated-channel state. Alternatively, if no traffic on the radio bearer of the given type is detected before expiration of the timer, the UE can be transilioned away from the dedicated-channel state (e.g., into CELL_FACIl CELL_PCTl or URA_PCH state).