Abstract:
Increased symbol length of uplink pilot time slots (UpPTS) in special subframes is disclosed in which a configuration of a first special subframe may be independent from configuration of a second special subframe in the same frame, such that the first UpPTS of the first special subframe is longer than the second UpPTS of the second special subframe. The second UpPTS of the second special subframe may also be longer than legacy UpPTS length in select configurations. A serving base station may select the special subframe configurations in order to balance sounding reference signal (SRS) capacity for compatible user equipments (UEs) and downlink throughput for legacy UEs. The selected special subframe configurations may be transmitted by the serving base stations. In additional aspects, compatible UEs may be configured with at least two separate SRS power control parameters for use in the additional and legacy UpPTS symbols.
Abstract:
Certain aspects of the present disclosure provide a method for wireless communications by a UE. The method generally includes sharing a single transmit chain for communication by at least a first RAT and second RAT, determining a tolerable puncturing rate for the first RAT, and providing assistance information, based on the determined tolerable puncturing rate, to a base station of the second RAT to assist the base station in avoiding scheduling transmissions that would lead to conflict with uplink transmissions in the first RAT. Numerous other aspects are provided.
Abstract:
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a network entity, a synchronization signal block (SSB). The UE may perform a measurement of the SSB during a measurement window for an unlicensed spectrum, wherein the measurement window is an extended measurement window as compared to a scheduled measurement window for a licensed carrier. The UE may transmit, based at least in part on the measurement of the SSB during the measurement window, a configured grant small data transmission (CG-SDT) in the unlicensed spectrum to the network entity, wherein the CG-SDT is based at least in part on a timing alignment validation after the measurement window. Numerous other aspects are described.
Abstract:
Some techniques described herein provide indication of a preferred scheduling mode for a user equipment (UE) based at least in part on an energy harvesting state of the UE. For example, the preferred scheduling mode may indicate a configured grant scheduling mode or a dynamic grant scheduling mode and/or one or more parameters associated with the preferred scheduling mode. For example, the one or more parameters may be based at least in part on an energy harvesting state of the UE. By indicating the preferred scheduling mode, the UE can selectively perform a transmission using a dynamic grant resource or a configured grant resource. Thus, the UE can request a dynamic grant resource when the UE is associated with a high energy level or a relatively fast charging rate, or a CG resource when the UE is associated with a low energy level ora relatively slow charging rate.
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:
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, an indication of a set of reference signals for measurement during a small data transfer (SDT) session associated with the UE. Accordingly, the UE may transmit, to the base station and during the SDT session, a channel state information report based at least in part on measuring the set of reference signals during the SDT session. Numerous other aspects are described.
Abstract:
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit at least one physical uplink shared channel (PUSCH) repetition of a plurality of PUSCH repetitions associated with a joint channel estimation configuration that indicates at least one time domain window for transmission of the plurality of PUSCH repetitions. The UE may activate, after an end of the at least one time domain window, a discontinuous reception round trip time (RTT) timer based at least in part on the transmission of the at least one PUSCH repetition. Numerous other aspects are described.
Abstract:
Methods, systems, and devices for power backoff techniques for modulation schemes are described. A user equipment (UE) may receive an indication of a constellation distribution parameter and a modulation scheme to be used by the UE for an uplink message on an uplink channel. The UE may determine an uplink transmission power based at least in part on the indicated constellation distribution parameter and the indicated modulation scheme. The UE may transmit the uplink message using the indicated modulation scheme according to the determined uplink transmission power. In some examples, the UE may transmit a report indicating a power headroom parameter and an output power parameter based at least in part on the constellation distribution parameter.
Abstract:
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may transmit a capability message indicating support for multiple configured grant small data transmission (CG-SDT) configurations and may receive one or more downlink messages that collectively indicate a downlink bandwidth part (BWP), an uplink BWP and a set of CG-SDT configurations based on transmitting the capability message. Each CG-SDT configuration may be associated with respective time and frequency resources for use in one or more CG-SDTs. The UE may transition out of a radio resource control (RRC) connected state based on receiving the one or more downlink messages. The UE may transmit an initial CG-SDT that includes a common control channel (CCCH) message using time and frequency resources associated with one or more of the set of CG-SDT configurations based on comparing the respective time and frequency resources associated with the each of the CG-SDT configurations.
Abstract:
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may detect, while in a radio resource control (RRC) inactive state or an RRC idle state, that data of a small data transmission (SDT) type for a non-SDT data radio bearer (DRB) has entered a buffer of the UE. The UE may transmit a message indicating the data in the buffer for the non-SDT DRB. The message may be associated with a UE ID. Numerous other aspects are described.