Abstract:
A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives, by a user equipment (UE) during a first subframe, an indication of a dynamic uplink/downlink (UL/DL) subframe configuration. The apparatus determines an uplink hybrid automatic repeat request (HARQ) timing based on an uplink reference subframe configuration and at least one of the dynamic UL/DL subframe configuration or a downlink reference subframe configuration. The apparatus selects an uplink subframe for communication based on the determined uplink HARQ timing.
Abstract:
Aspects described herein generally relate to communicating between a user equipment (UE) and a cell using frequency division duplexing (FDD) to separate an uplink frequency band and a downlink frequency band with the cell. An indicator can be transmitted from the cell and received by the UE to implement time division duplexing (TDD) on the uplink frequency band. Based at least in part on the indicator, communicating between the UE and the cell can include separating the uplink frequency band into a plurality of downlink subframes for receiving downlink communications from the cell and a plurality of uplink subframes for transmitting uplink communications to the cell.
Abstract:
A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives, by a user equipment (UE) during a first subframe, an indication of a dynamic uplink/downlink (UL/DL) subframe configuration. The apparatus determines an uplink hybrid automatic repeat request (HARQ) timing based on an uplink reference subframe configuration and at least one of the dynamic UL/DL subframe configuration or a downlink reference subframe configuration. The apparatus selects an uplink subframe for communication based on the determined uplink HARQ timing.
Abstract:
Aspects of the present disclosure relate techniques for transmitter sharing by a user equipment (UE) for simultaneous communications between multiple radio access technology (RAT) networks. Certain aspects of the present disclosure provide a method for wireless communications by a UE. The method generally includes sharing a single transmit chain via time divisional multiplexing (TDM) for concurrent communication by at least first and second RAT, optionally negotiating an autonomous denial rate for the UE to deny uplink transmissions in the second RAT, detecting or predicting conflicts between scheduled uplink transmissions in the first RAT and a scheduled transmission in the second RAT, and denying uplink transmissions in the second RAT, subject to the negotiated autonomous denial rate if available, in response to detected or predicted.
Abstract:
Methods, systems, and devices for wireless communication are described. A central unit (CU) of a network entity may receive, from a first user equipment (UE) via a second UE, a connection setup request message for a first UE. The CU may establish UE context information for the first UE at an adaptation layer of the CU, the CE context information based at least in part on communications between the first UE and the network entity via the second UE. The CU may transmit, to a distributed unit (DU) associated with the CU, an indication of a relaying configuration for the first UE connecting to the network entity via the second UE, the relaying configuration comprising multiplexing and forwarding information for a connection between the second UE the DU. The CU may communicate with the first UE via the second UE according to the UE context information and the relaying configuration.
Abstract:
Certain aspects of the present disclosure generally relate to methods and apparatus for performing minimization of drive test (MDT) operations. For example, certain aspects provide a method for wireless communication. The method generally includes receiving, at a radio access network (RAN), a measurement configuration to start a trace of a user-equipment (UE), determining a transition of the UE to an inactive state, and sending one or more messages to coordinate the trace of the UE or indicate that the trace has failed in response to the determination
Abstract:
Methods, systems, and devices for remote user equipment (UE) discovery and link establishment for reduced capability UE are described. In some examples, a relay UE may transmit one or more discovery messages associated with establishing a sidelink relay communication link between the relay UE and a remote UE having a reduced communication bandwidth capability relative to the relay UE. In such examples, the relay UE may perform a communication bandwidth configuration procedure with the remote UE based on the remote UE having the reduced communication bandwidth capability relative to the relay UE. In some examples, the relay UE and the remote UE may establish, in accordance with the communication bandwidth configuration procedure, the sidelink relay communication link between the relay UE and the remote UE using a reduced communication bandwidth that is less than a full communication bandwidth allocated for the relay UE.
Abstract:
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, to a base station, information identifying multiple remote UEs for which the UE serves as a relay UE. The UE may receive, from the base station, an indication of a grouping of the remote UEs into one or more paging groups. The UE may monitor, for each paging group of the one or more paging groups, paging occasions associated with that paging group to determine whether paging messages for the remote UEs in that paging group are received from the base station. Numerous other aspects are described.
Abstract:
Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently performing measurements and other functions in preparation for communicating with a base station on a secondary cell (SCell). In particular, a user equipment (UE) may switch to a certain bandwidth part (BWP) (e.g., a dormant BWP) on an SCell when the SCell is deactivated, and the UE may perform the appropriate measurements and functions on this BWP (e.g., based on reference signals received on this BWP). In some cases, the UE may determine to switch to the BWP for performing the appropriate measurements and functions based on an inactivity timer expiring or based on an indication from a base station (e.g., on a primary cell (PCell)). Accordingly, once the UE activates the SCell for communications with a base station, the latency associated with preparing for communicating on the SCell may be reduced.
Abstract:
Methods, systems, and devices for wireless communication are described. A first user equipment (UE) may transmit, to a base station, a first uplink message including one or both of a protocol layer source identifier associated with a second UE or a request for a local identifier associated with the second UE. The first UE may receive, from the base station, a first downlink message including a downlink signal radio bearer (DL SRB) message, and the DL SRB message including one or both of the protocol layer source identifier associated with the second UE or the local identifier associated with the second UE in a downlink adaptation layer header of the DL SRB message. The first UE may transmit, to the second UE, in a sidelink adaptation layer header of a sidelink message, the local identifier associated with the second UE based in part on the received first downlink message.