Abstract: A computing device may obtain, from a first bitstream that includes a coded representation of the video data, a Supplemental Enhancement Information (SEI) message that includes an indication of an extraction mode that was used to produce the first bitstream. If the extraction mode is the first extraction mode, the first bitstream includes one or more coded pictures not needed for correct decoding of the target output layer set. If the extraction mode is the second extraction mode, the first bitstream does not include the one or more coded pictures not needed for correct decoding of the target output layer set.

Abstract: A method performed by an electronic device is described. The method includes obtaining a motion vector map based on at least two images. The motion vector map has fewer motion vectors than a number of pixels in each of the at least two images. The method also includes obtaining a feature point from one of the at least two images. The method further includes performing a matching operation between a template associated with the feature point and at least one search space based on the motion vector map. The method additionally includes determining a motion vector corresponding to the feature point based on the matching operation.

Abstract: This disclosure provides devices, computer programs and methods for determining a motion direction. In one aspect, a mobile device includes one or more sensors configured to measure acceleration data in each of one or more directions. The mobile device also includes one or more processors and a memory storing instructions that, when executed by the one or more processors, implement a motion direction estimation module. The motion direction estimation module is configured to identify a use case for the mobile device based at least in part on the acceleration data. The motion direction estimation module also is configured to select a set of one or more parameters based on the identified use case. The motion direction estimation module is further configured to calculate an estimated motion direction of the mobile device based on the acceleration data and the respective set of parameters corresponding to the identified use case.

Abstract: Techniques are described for wireless communication. One method for wireless communication at a base station includes contending for access to a shared channel of a shared radio frequency spectrum band, and multiplexing first component carrier (CC) communication windows and second CC communication windows in the shared channel. A duration of orthogonal frequency domain multiplexed (OFDM) symbols of the first CC communication windows may be different from a duration of OFDM symbols of the second CC communication windows, and the multiplexing may occur on the shared channel upon winning contention for access to the shared channel. One method for wireless communication at a user equipment (UE) includes monitoring a shared channel of a shared radio frequency spectrum band for a first CC Listen Before Talk (LBT) frame, and receiving, in a second CC preamble, an indication of the first CC LBT frame.

Abstract: Techniques for quantization parameter (QP) for display stream compression (DSC) based on complexity measure are disclosed. In one aspect, a method for determining a QP value includes determining a complexity value of a plurality of previous blocks and selecting a technique from a plurality of defined techniques for calculating a QP adjustment value for a current block based on the determined complexity value. The method may further include calculating the QP adjustment value for the current block via the selected technique and determining the QP value for the current block based on the QP adjustment value.

Abstract: Diversity enhancement for multiple carrier systems is disclosed which includes generation of a multiplexed multicarrier radio frequency (RF) signal having N carriers organized to be accessed at a rate of one carrier access per multicast channel (MCH) scheduling period (MSP) per carrier of the N carriers, thereby requiring N accesses per MSP duration across the N carriers. The method may also include the base station transmitting the RF signal to a user equipment (UE). In other aspects, the diversity enhancements include the UE receiving a multiplexed multicarrier RF signal having N carriers. The UE may access the N carriers by performing one carrier access per MSP per carrier of the N carriers, thereby performing N accesses per MSP duration across the N carriers.

Abstract: A mobile device can send and receive signals in a dedicated frequency band and receive signals in a separate frequency band separate from the dedicated frequency band. The mobile device can send one or more frequency band compatibility combinations each including first and second frequency bands, the first frequency band being in the separate frequency band and the second frequency band being in the dedicated frequency. The mobile device can listen, based on a received neighbor list, for a first signal that has a frequency in the first frequency band and for a second signal that has a frequency in the second frequency band. The mobile device can determine, based on the first signal, ranging information indicative of a range from the mobile device to a source of the first signal, e.g., to obtain improved accuracy ranging information.

Abstract: Methods, systems, and devices for wireless communication are described that provide for synchronization signal (SS) blocks in which synchronization signals and broadcast channel transmissions may be transmitted. Broadcast channel transmissions may be demodulated using SS transmissions, reference signal transmissions, or combinations thereof. Broadcast channel transmissions may be transmitted in a subset of SS block time resources, and synchronization signals may be transmitted in another subset of SS block time resources. Reference signals may be transmitted using tones within the broadcast channel time resources, and may be transmitted at a higher density for portions of the broadcast channel transmission bandwidth that are outside of the SS transmission bandwidth. Waveforms for reference signal transmissions, and information provided by reference signal transmissions may be provided.

Abstract: Aspects of the present disclosure provided techniques that for wireless communications by a user equipment (UE). An exemplary method, performed by a UE, generally includes determining an additional set of resources to use to enhance measurement of one or more metrics indicative of channel conditions based on measurement of reference signals during a measurement procedure, wherein the additional set of resources are in addition to a defined set of resources used to measure the one or more metrics and performing the measurement procedure based at least on the reference signals, the additional set of resources, and one or more measurement parameters.

Abstract: Standard cell circuits employing voltage rails electrically coupled to metal shunts for reducing or avoiding increases in voltage drop are disclosed. In one aspect, a standard cell circuit is provided that employs active devices that include corresponding gates disposed with a gate pitch. First and second voltage rails having a line width are disposed in a first metal layer. Employing the first and second voltage rails having substantially a same line width reduces the height of the standard cell circuit as compared to conventional standard cell circuits. Metal lines are disposed in a second metal layer with a metal pitch less than the gate pitch such that the number of metal lines exceeds the number of gates. Electrically coupling the first and second voltage rails to the metal shunts increases the conductive area of each voltage rail, which reduces a voltage drop across each voltage rail.

Abstract: A method of coding video data includes upsampling at least a portion of a reference layer picture to an upsampled picture having an upsampled picture size. The upsampled picture size has a horizontal upsampled picture size and a vertical upsampled picture size. At least one of the horizontal or vertical upsampled picture sizes may be different than a horizontal picture size or vertical picture size, respectively, of an enhancement layer picture. In addition, position information associated with the upsampled picture may be signaled. An inter-layer reference picture may be generated based on the upsampled picture and the position information.

Abstract: Techniques are described for wireless communication. A first method may include determining a pattern of signal transmissions for transmitting instances of a signal in a time period of an unlicensed radio frequency spectrum band; determining whether the unlicensed radio frequency spectrum band is unavailable to transmit at least one instance of the signal; and changing, in response to determining the unlicensed radio frequency spectrum band is unavailable to transmit an instance of the signal, the pattern of signal transmissions for the time period. A second method may include identifying at least one reference signal pattern from a plurality of reference signal patterns based at least in part on whether a plurality of transmission time intervals are bundled; and signaling the identified at least one reference signal pattern to a device.

Abstract: Various embodiments are disclosed of a device for use on an unmanned aerial vehicle (drone) including two or more gimbals, a gimbal processor, an inertial measurement unit, and a communication connection. The two or more gimbals are pivotally coupled to rotate orthogonally relative to each other. An inner gimbal of the two or more gimbals may support an inner platform for receiving components thereon. An outer gimbal of the two or more gimbals may be pivotally coupled to the drone. The gimbal processor is mounted on the inner platform, wherein the gimbal processor is configured to control pivotal movement of the two or more gimbals. The inertial measurement unit may be fixed relative to the inner platform and coupled to the gimbal processor. The communication connection may be coupled to the gimbal processor and configured to exchange signals with the drone for controlling operations.

Abstract: Techniques are described for wireless communication. One method includes performing a first beam sweep procedure to determine a first beam pair that includes a transmit beam of a first wireless node and a receive beam of a second wireless node, identifying a level of correspondence at one or both of the first wireless node and the second wireless node, the level of correspondence being between a transmit beam and a receive beam of a respective wireless node and determining, based on the level of correspondence, a range of a second beam sweep procedure to be performed in determining a second beam pair that includes a transmit beam of the second wireless node and a receive beam of the first wireless node.

Abstract: Aspects of the present disclosure provide techniques for uplink (UL) data channel design. An example method is provided for operations which may be performed by a first apparatus. The example method generally comprises determining a number of pilot symbols to transmit for one or more slots of a first subframe based, at least in part, on a coverage enhancement (CE) level, and transmitting at least one uplink data channel having the determined number of pilot symbols in the one or more slots of the first subframe.

Abstract: A skewed, co-spiral inductor structure may include a first trace arranged in a first spiral pattern that is supported by a substrate. The skewed, co-spiral inductor structure may also include a second trace arranged in a second spiral pattern, in which the second trace is coupled to the first trace. The first trace may overlap with the second trace in orthogonal overlap areas. In addition, each orthogonal overlap area may have a size defined by a width of the first trace and the width of the second trace. Also, parallel edges of the first trace and the second trace may be arranged to coincide.

Abstract: A method for channel state information (CSI) reporting by a wireless communication device is described. The method includes determining a codebook for a CSI report corresponding to four transmit antenna (4Tx) transmissions from a base station. The codebook has a dual codebook structure. The method also includes generating the CSI report using the codebook. The method further includes transmitting the CSI report to a base station.

Abstract: Systems and methods are disclosed that may provide for selective multi-user uplink (UL) of data for wireless devices. For example, a first wireless device may request permission to initiate a UL transmission to a second wireless device. The first wireless device may then receive, from the second wireless device, permission to initiate the UL transmission according to a multi-user (MU) UL protocol, determine a threshold duration for the UL transmission, and transmit UL data to the second wireless device according to the MU UL protocol and the threshold duration.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may receive when operating in a network that provides synchronization signals at a plurality of locations in a channel bandwidth, a common search space (CSS) indicator for a synchronization signal, wherein the CSS indicator indicates that the synchronization signal is not associated with a CSS for a downlink control channel. The user equipment may determine a location of the CSS for the downlink control channel based at least in part on the CSS indicator. Numerous other aspects are provided.

Abstract: Various features related to frequency hopping for broadcast/multicast transmissions for narrow band devices are described. To exploit frequency diversity, multicast transmissions may be frequency hopped. In an aspect, a UE maybe configured to receive a signal, e.g., from a base station, including at least one of a first hopping indicator indicating whether frequency hopping is enabled for a multicast control channel or a second hopping indicator indicating whether frequency hopping is enabled for a multicast traffic channel, and determine whether frequency hopping is enabled for the at least one of the multicast control or traffic channel based on the received signal. The UE may further determine at least one hopping pattern for receiving multicast transmissions in the at least one of the multicast control channel or the multicast traffic channel when the frequency hopping is enabled, and receive the multicast transmissions based on the determined at least one hopping pattern.