Abstract: Certain aspects of the present disclosure provide techniques for generating and processing demodulation reference signals transmitted with PBCH. Specifically, the techniques described herein relate to mapping DMRS tones to REs in the PBCH based on a Cell ID.

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for dynamic reclamation of resources reserved for forward compatibility using communications systems operating according to new radio (NR) technologies. Certain aspects provide a method for wireless communication. The method generally includes identifying resources previously reserved for forward compatibility (FC) that are available for reuse, and providing signaling, to one or more user equipments (UEs), indicating the identified resources are available for reuse.

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for uplink power control using communications systems operating according to new radio (NR) technologies. For example, a method for wireless communication by a base station includes providing power control parameters, to at least one user equipment (UE), for use in performing uplink transmit power control for one or more uplink transmissions sent using one or more uplink transmit beams, signaling the UE to set or reset one or more of the power control parameters, and transmitting one or more reference signals (RSs) using one or more downlink transmit beams, for the UE to measure for use in the uplink transmit power control.

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine that a signal characteristic of a unicast signal is better than a signal characteristic of a broadcast signal; and/or transmit, based at least in part on the determination, a request for an update to a master information block or a minimum system information block to be provided to the user equipment using the unicast signal. In some aspects, a base station may determine that a signal characteristic of a unicast signal associated with a user equipment (UE) is better than a signal characteristic of a broadcast signal broadcasted by the base station; and/or transmit, based on the determination, an update to a master information block (MIB) or a minimum system information block (MSIB) to the UE using the unicast signal. Numerous other aspects are provided.

Abstract: Various aspects described herein relate to techniques for signaling and using one or more virtual cell identifications (V-cell IDs) for single frequency network (SFN)-type of transmissions in wireless communications systems. A method, a computer-readable medium, and an apparatus are provided. In an aspect, the method may include performing, by a user equipment (UE), a cell search to obtain a cell ID, and decoding, by the UE, a message based on the cell ID, wherein the message includes a master information block (MIB). The method may further include identifying, by the UE, a virtual cell ID used for SFN-type transmissions based on information decoded from the message. The techniques described herein may apply to different communications technologies, including 5th Generation (5G) New Radio (NR) communications technology.

Abstract: Aspects of the present disclosure provide various apparatuses and methods for utilizing null resource elements to facilitate dynamic and bursty inter-cell interference measurements in a wireless network like 5G new radio (NR). A user equipment (UE) is provided with resources and signaling to facilitate bursty interference measurements at demodulation time.

Abstract: A user equipment apparatus determines whether a transmission is received from a base station within a time window and skips measurement of a reference signal during a subsequent period, when a transmission is received from the base station within the time window. A base station apparatus configures a UE to monitor one or more reference signals associated with a beam pair link and transmits a first signal in a transmission to the UE. The base station determines whether the transmission is received at the UE within a time window and determines whether to transmit a reference signal, based on whether the transmission is received at the UE within the time window. Upon determining that the transmission was received at the UE, the base station may skip transmission of the reference signal or modify a time, a frequency, a power, and/or a reference signal offset for the reference signal.

Abstract: Wireless communications systems and methods related to performing random access procedures. A base station (BS) receives, from a user equipment (UE), a plurality of random access preambles from a plurality of beam directions, wherein each of the plurality of random access preambles is received from a different beam direction, and wherein the plurality of random access preambles are associated with multiple random access opportunities of a random access attempt. The BS sends, in response to the plurality of random access preambles, a plurality of random access response (RAR) messages in the plurality of beam directions.

Abstract: Aspects herein describe transmitting reference signals in wireless communications. An indication of resources over which to transmit an uplink reference signal can be received from an access point, where the resources are at least partially used by another device to transmit a downlink reference signal or a second uplink reference signal. The uplink reference signal can be transmitted over the resources.

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. According to some aspects, the apparatus may identify a first power state and a second power state, wherein the first power state is associated with a first transmission or reception of one or more first beams, and the second power state is associated with a second transmission or reception of one or more second beams; and/or switch from the first power state to the second power state, wherein the apparatus is configured to use at least one of a scheduled gap or at least one intermediate power state between the first power state and the second power state to smooth a transition from the first power state to the second power state. Numerous other aspects are provided.

Abstract: Certain aspects of the present disclosure generally relate to wireless communication. In some aspects, a UE may measure a first reference signal, associated with a frequency band of a long term evolution (LTE) system, and a second reference signal associated with a frequency band of a new radio (NR) system. The frequency band of the NR system may overlap the frequency band of the LTE system. The UE may determine first channel state feedback, associated with the frequency band of the LTE system, and second channel state feedback, associated with the frequency band of the NR system, based at least in part on the first reference signal and the second reference signal, respectively. The UE may report the first channel state feedback or the second channel state feedback in uplink control information (UCI). Other aspects are provided.

Abstract: Methods, systems, and devices for wireless communication are described. A base station may configure a first sub-band and a second sub-band of a system bandwidth for communication with a user equipment (UE). The base station may determine a spatial quasi co-location (QCL) relationship between the first sub-band and the second sub-band and may transmit signaling to the UE that indicates the determined spatial QCL relationship. Upon receiving the signaling, the UE may derive, based on the indicated spatial QCL relationship, spatial parameters (e.g., beam width, pointing angle, etc.) for communication with the base station via the second sub-band. The spatial parameters may be derived based on spatial parameters used for reception of a downlink transmission from the base station via the first sub-band. Subsequently, the UE may communicate with the base station via the second sub-band using the derived spatial parameters.

Abstract: User equipment (UE) selection of contention-free random access (CFRA) and contention-based random access (CBRA) for handover processing is discussed. The aspects include receiving a random access configuration at the UE including configuration for CFRA and CBRA. The UE will determine a first random access resource, wherein the first random access resource maps to one or more beams from a target base station. The UE may initiate a random access request using the CFRA when the first random access resource is a contention-free resource, and initiate the random access request using the CBRA when the first random access resource is a contention-based resource.

Abstract: Wireless communications systems and methods related to reusing long-term evolution (LTE) resources in a nested network system are provided. A first wireless communication device receives, from a second wireless communication device, a reference signal configuration of a first network of a long-term evolution (LTE) radio access technology (RAT). The first wireless communication device and the second wireless communication device are associated with a second network of another RAT. The first wireless communication device receives, from the second wireless communication device, a communication signal in the second network based on the reference signal configuration of the first network. The reference signal configuration indicates at least one of a frequency tone of a reference signal of the first network, a time period of the reference signal of the first network, or a number of antenna ports associated with the reference signal of the first network.

Abstract: Methods, systems, and devices for wireless communication are described. The described techniques provide for configuration and transmission of reference signals over aggregated mini-slots by modifying (e.g., extending) transmission time intervals (TTIs) or sharing reference signals across multiple mini-slots. The reference signals may be shared between multiple aggregated mini-slots and a reference signal pattern may be determined based on data payload allocation, modulation coding scheme (MCS), rank, or other factors of the aggregated mini-slots. Data payloads may be scheduled jointly or separately for each mini-slot and may be allocated across a set of aggregated mini-slots.

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for multiplexing scheduling requests (SRs), for example, using multiple SR resources to indicate different types of traffic (or traffic parameters).

Abstract: A user equipment (UE) may be configured to communicate a number of transmissions that may each have separate feedback processes. A feedback configuration for providing feedback for such separate feedback processes may be determined based on semi-static signaling and dynamic signaling. In some cases, semi-static signaling, such as radio resource control (RRC) signaling and dynamic signaling, such as downlink control information (DCI), may together provide a feedback configuration for a particular transmission. The semi-static signaling may provide a number of bits of feedback information, an interpretation of the bits of feedback information, or combinations thereof, and dynamic signaling may indicate that one or more of the bits are to have one of a number of available interpretations, may indicate that one or more additional bits are to be included with feedback, of combinations thereof. Feedback techniques as discussed herein may be used to provide feedback for uplink or downlink transmissions.

Abstract: Apparatuses and methods of beam switching are presented. A beam switch message (BSM) is transmitted to a second device via a first beam set. The BSM includes a command to switch from communication via the first beam set to communication via a second beam set at a switch time. It is determined whether a response message is received from the second device via the first beam set, the response message indicating that the second device received the BSM. A communication is sent to the second device via the second beam set after the switch time when the response message is unreceived.

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for inter-RAT resource switching based on power consumption using communications systems operating according to, for example, new radio (NR) technologies. For example, a method may generally include signaling at least one power consumption metric of the UE for communicating in at least first and second radio access technologies (RAT) resources, and taking action to switch to communicate via the first RAT resource, the second RAT resource, or both, based on the at least one power consumption metric.

Abstract: Various aspects of the disclosure relate to managing the transmission of uplink beams. For example, a first apparatus may generate a signal for transmission to a second apparatus. Thereafter, the first apparatus may detect a condition associated with transmitting the signal via a first uplink beam at a first transmission power. The condition may include the first uplink beam exceeding a maximum permissible exposure (MPE) limit. Accordingly, the first apparatus may refrain from transmitting the signal via the first uplink beam based on the at least one condition and transmit the signal to the second apparatus using a second uplink beam different from the first uplink beam.