Abstract: Random access procedures for low-power devices are described herein. In one example, a method for random access includes receiving, from a network entity during a random access response monitoring window, a random access response, including: an identifier associated with the network entity; and an uplink resource allocation; and sending, to the network entity, an uplink message scrambled with the identifier, the uplink message comprising: an identifier associated with the user equipment; and a setup request.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit an indication of receiver capability information associated with an Internet-of-Things (IoT) device. The UE may receive a signal that is based at least in part on the receiver capability information. In some aspects, the UE is the IoT device. Numerous other aspects are described.

Abstract: An aggregation device, an optical module, and an optical network system. The aggregation device includes: a first port, configured to receive a plurality of downlink coupled optical signals in different wavelengths; a first component, configured to split the downlink coupled optical signal to form a plurality of different downlink optical signals, and aggregate the plurality of received uplink optical signals into one uplink coupled optical signal and output the uplink coupled optical signal to a third port; a plurality of second ports, configured to output the plurality of downlink optical signals to corresponding bidirectional access optical modules among a plurality of bidirectional access optical modules respectively, receive a plurality of uplink optical signals in different wavelengths, and output the uplink optical signals to the first component; and the third port, configured to output the uplink coupled optical signal to the core optical module.

Abstract: A network entity may select a PSS. The PSS may be associated with an OOK bit sequence or a single carrier waveform. The network entity may transmit, for a UE, the PSS based on a synchronization raster. The synchronization raster is a multiple of a channel raster. The UE may synchronize with the network entity based on the received PSS. In one configuration, the PSS may include a time domain synchronization signal based on the single carrier waveform. In one configuration, the PSS may include a predefined OOK bit sequence.

Abstract: Certain aspects of the present disclosure provide techniques for using timing synchronization signals (TSSs) and frequency synchronization signals (FSSs). An example method, performed at a wireless node, includes performing timing synchronization based on a first synchronization signal (SS), performing frequency synchronization based on a second SS, and communicating after performing the timing synchronization and the frequency synchronization.

Abstract: Methods, systems, and devices for wireless communications are described that provide for signaling backscatter modulation capabilities of a user equipment (UE) or other device that supports backscatter modulation. Backscatter modulation capabilities may include frequency shift capabilities, and one or more backscatter capabilities may be signaled in a capability report that is transmitted responsive to a signal from a network node or other interrogating device or reader. The capability report may indicate whether backscatter modulation with frequency shifting is supported or not supported at the UE. The capability report also may indicate one or more types of frequency shifting supported at the UE. The network node may receive the capability report and schedule a UE for communications based on the reported capabilities.

Abstract: This disclosure provides systems, methods, and apparatuses, including computer programs encoded on computer storage media, for wireless communication. For example, a UE may receive a wake-up signal including an indication that the wake-up signal is addressed to the UE. The indication may be associated with one or more characteristics of an energy harvesting circuit of the UE. The UE may monitor, in response to the indication that the wake-up signal is addressed to the UE, one or more resources. Other aspects and features are also claimed and described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a physical random access channel (PRACH) configuration indicating a set of resources for a random access channel (RACH) preamble. The UE may receive an input radio frequency (RF) signal. The UE may select a starting frequency for a frequency hopping pattern for the RACH preamble. The UE may transmit the RACH preamble in the set of resources at the starting frequency and in accordance with the frequency hopping pattern, wherein transmitting the RACH preamble comprises a backscatter modulation of the input RF signal. Numerous other aspects are described.

Abstract: Disclosed are techniques for wireless communication. In an aspect, a communications device determines at least one position estimation performance parameter, determines a zone identifier based at least in part upon the at least one position estimation performance parameter, wherein the zone identifier identifies one of a plurality of zones, and transmits the zone identifier to one or more UEs. A UE receives the zone identifier, determines the at least one position estimation performance parameter, selects one or more candidate UEs for the sidelink-assisted position estimation procedure based at least in part upon the at least one position estimation performance parameter, and performs the sidelink-assisted position estimation procedure of the UE with at least the selected one or more candidate UEs.

Abstract: Aspects relate to beam management schemes for wireless energy transfer and information (e.g., data) transfer. A user equipment (UE) may transmit a UE capability thereof to a network entity that indicates a receiver architecture of the UE. The network entity may then select a beam management scheme based on the receiver architecture of the UE and communicate with the UE using the selected beam management scheme. The selected beam management scheme may include one or more beams to provide both an energy transmission and an information transmission to the UE.

Abstract: Methods, systems, and devices for wireless communication are described. In some examples, an energy transfer device may indicate timing information for backscattering a signal. The energy transfer device may transmit, to an energy harvesting device, a message including timing information that indicates when the energy harvesting device is to begin backscattering of a wireless signal. The energy transfer device may transmit the wireless signal. The energy harvesting device may monitor for and receive the wireless signal based on the message. The energy harvesting device may transmit a backscattered signal based on application of a backscattering function to the wireless signal in accordance with the timing information.

Abstract: Aspects relate to a wireless communication device that forwards signals over different types of wireless communication links. For example, a wireless communication device may be configured to relay signals for a first type of wireless communication link (e.g., a cellular link such as a Uu link) and also relay signals for a second type of wireless communication link (e.g., a sidelink that uses a PC5 link). The disclosure relates in some aspects to techniques for configuring the wireless communication device to enable the signals for the different types of wireless communication links to be forwarded in an effective manner.

Abstract: Systems and techniques are provided for wireless communication. For example, an energy harvesting (EH)-capable device for wireless communication can provide, to a network entity, EH information corresponding to one or more EH characteristics of the EH-capable device. The EH-capable device can receive, from the network entity, a first radio frequency (RF) signal, wherein the first RF signal is based on the EH information. The EH-capable device can perform energy harvesting using the first RF signal.

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support backscatter-based positioning. In a first aspect, a method of wireless communication includes transmitting a tag configuration message that indicates a first tag configuration and a second tag configuration. The method also includes transmitting a positioning reference signal (PRS). The method also includes receiving, from a first tag device, a first backscatter signal based on the PRS, and receiving, from a second tag device, a second backscatter signal based on the PRS. The method includes transmitting a measurement report that indicates a first round trip time (RTT) of the first tag device, and a second RTT of the second tag device. The first RTT is based on the first tag configuration and the first backscatter signal, and the second RTT is based on the second tag configuration and the second backscatter signal.

Abstract: Certain aspects of the present disclosure provide techniques for mini-slot operation in sidelink communications. A method performed by a user equipment (UE) includes determining a mini-slot within a configured sidelink slot in which to perform sidelink transmission, and performing the sidelink transmission in the mini-slot.

Abstract: Methods, systems, and devices for wireless communications are described. Some wireless communications systems may support control signaling for repeaters with energy transfer. For example, a wireless node (e.g., a repeater) may receive control signaling including an indication of one or more configurations for relaying signals associated with multiple signal types between one or more transmitting nodes and one or more receiving nodes. In some cases, the multiple signal types may include a first signal type associated with an information communications signal and a second signal type associated with an energy transfer signal. Additionally, the wireless node may receive one or more signals of the first signal type, the second signal type, or both, and relay at least a subset of the one or more signals according to the one or more configurations.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit, for one or more nodes, capability information regarding a beam tracking capability of a backscattering radio of the UE. The UE may perform beam tracking in accordance with the beam tracking capability. The UE may transmit, for the one or more nodes, beam information based at least in part on the beam tracking. Numerous other aspects are described.

Abstract: Apparatus, methods, and computer program products for backscatter communication (BC) are included. An example method may include transmitting an indication of a backscattering radio (BR) capability to a network entity. The example method may also include receiving a first message from the network entity, the first message indicating that the UE is to remain on a main radio (MR) state or transition to a BR state.

Abstract: This disclosure provides systems, methods, and devices for wireless communication that support backscatter-based positioning. In a first aspect, a method of wireless communication includes receiving multiple measurement reports associated with a tag device. The multiple measurement including, for each transmission/reception point (TRP) of multiple TRPs, a measurement report of the TRP. The method further includes determining, based on the multiple measurement reports, a position of the tag device having a tag delay that is unknown to a network entity.