Patent classifications
H04L5/0078
Temporary Bandwidth Part Switch Suitable for Reduced Capability Device
A UE is connected to a serving cell via an active BWP of a first BWP, and receives a message having criteria for switching from the first BWP to a second BWP. In response to at least one of the criteria being met, the UE waits until a first preconfigured time to switch from the first BWP to the second BWP, and switches the active BWP from the first BWP to the second BWP. The UE communicates with the serving cell and performs SSB measurements while using the second BWP as the active BWP. The UE switches from the second BWP to the first BWP after a second preconfigured time corresponding to a duration of time in the second BWP. The serving cell sends the message having the criteria, switches active BWPs accordingly, and communicates with the UE in the active BWPs.
Interaction of discontinuous reception (DRX) with positioning reference signal (PRS) resources
Disclosed are techniques for wireless communication. In an aspect, a user equipment (UE) operating in discontinuous reception (DRX) mode receives a DRX configuration, receives a reference signal resource configuration, determines, at least based on the DRX configuration and the reference signal resource configuration, whether an overlap exists between a reference signal occasion of a plurality of reference signal occasions of the reference signal resource configuration and an active time of the DRX configuration, receives or transmits at least based on a determined overlap, at least a first reference signal in the reference signal occasion, and receives or transmits, while remaining in an active state of the DRX configuration, at least based on the determined overlap, at least a second reference signal in remaining reference signal occasions of the plurality of reference signal occasions after expiration of the active time.
Beta offset management for URLLC UCI
A method and apparatus are disclosed for configuring at least one set of beta offset values, and for each of the at least one set of beta offset values, at least one subset of beta offset values being defined for information corresponding to Uplink Control Information, UCI, and being associated with at least one service type. A method and apparatus are disclosed for obtaining a configuration of at least one set of beta offset values, for each of the at least one set of beta offset values, the configuration being associated with at least one subset of beta offset values, the at least one subset of beta offset values being defined for information corresponding to UCI and being associated with at least one service type.
Timing advances for uplink transmissions
Certain aspects of the present disclosure provide techniques for using multiple timing advances for simultaneous uplink reception, for example, using multiple antennas, beams, and/or antenna panels. A method that may be performed by a user equipment (UE) includes configuring a plurality of timing advances (TAs) for a plurality of uplink transmissions using a plurality of antennas. The UE transmits the plurality of uplink transmissions to a base station (BS) using the plurality of antennas based on the plurality of timing advances. A method that may be performed by a BS includes receiving a plurality of uplink transmissions from a UE and transmitting timing information to the UE in a message, the timing information based on when each of the plurality of uplink transmissions was received at the BS.
CARRIER AGGREGATION UPLINK SWITCH GAP DETECTION AND REPORT
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, an indication of a monitoring window used by the base station to monitor for uplink transmissions from the UE. The UE may receive a control signal scheduling uplink resources for an uplink transmission by the UE on at least a first component carrier, the first component carrier in a first radio frequency spectrum band. The UE may reconfigure, in response to the received control signal, a first transmit chain of the UE from a second component carrier in a second radio frequency spectrum band to the first component carrier in the first radio frequency spectrum band for the uplink transmission. The UE may transmit, based at least in part on the indicated monitoring window and using at least the reconfigured first transmit chain, the uplink transmission on the first component carrier using the scheduled uplink resources.
METHOD FOR DEFINING UPLINK (UL) TRANSMISSION TIMING ACCURACY
Certain aspects of the present disclosure provide techniques for wireless communications by a user equipment (UE). The UE detects at least one of a first type of reference signal (RS) or a second type of RS within an active bandwidth part (BWP). The UE then derives uplink (UL) transmission timing and corresponding accuracy requirement, based on which type of RS was detected. The UE then transmits UL signals based on the derived UL transmission timing and the corresponding accuracy requirement.
DOWNLINK CONTROL INFORMATION SCHEDULING
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network entity may schedule multiple downlink control information (DCI) messages, which schedule multiple uplink messages to be transmitted by a user equipment (UE) on physical uplink channel resources, such that each of the multiple DCI messages arrive at least a specified time duration earlier than a start of an earliest of the physical uplink channel resources. The network entity may transmit the multiple DCI messages as scheduled. The UE may prepare to receive the DCI messages as scheduled. Numerous other aspects are described.
Transmit Power Control in Multicarrier Communications
Methods and apparatuses are described for wireless communications. Cells may be grouped into a plurality of cell groups. A wireless device may transmit a plurality of preambles. The wireless device may also transmit a packet using a transmission power that is based on a power ramp-up of the preambles.
Signal transmission power adjustment in a wireless device
Wireless communications are described. A wireless device may be configured to transmit a first signal via a first cell group that may overlap in time with a second signal via a second cell group. The wireless device may adjust a signal transmission power of at least one of the first signal or the second signal. Additionally or alternatively, the wireless device may drop at least one of the first signal or the second signal. Adjusting and/or dropping at least one of the first signal or the second signal may be based on the overlap in time of these signals satisfying a duration threshold and a total power to transmit the first signal and the second signal exceeding a power threshold.
Aggregation factor associations in uplink and downlink transmissions
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, a control signal indicating a resource allocation for either an uplink transmission or a downlink transmission. The UE may identify, based at least in part on a modulation and coding scheme indicated in the control signal, an aggregation factor of the uplink transmission or the downlink transmission. The UE may communicate with the base station by either transmitting the uplink transmission or receiving the downlink transmission in accordance with the resource allocation and the aggregation factor.