Abstract:
Methods, systems, and devices for wireless communications are described. A first device may select, from multiple orbital angular momentum (OAM) modes, a set of one or more primary OAM modes and a set of one or more secondary OAM modes, where at least one primary OAM mode is activated periodically and at least one secondary OAM mode is activated based on a trigger. The first device may transmit, to a second device, a message indicating a configuration for the selected set of one or more primary OAM modes, the selected set of one or more secondary OAM modes, and discontinuous reception (DRX) parameters for each of the sets of OAM modes. The second device may monitor for a signal using a primary OAM mode using the DRX parameters for the set of primary OAM modes, and the second device may activate a second OAM mode based on receiving the signal.
Abstract:
Methods, systems, and devices for wireless communication at a user equipment (UE) are described. A UE may operate by asynchronously transmitting code division multiple access (CDMA) uplink signals to a network entity. The UE may transmit the CDMA signals via an uplink channel that may be shared with orthogonal frequency multiplexing (OFDM) signaling transmitted by one or more other UEs. The UE may indicate to the network entity a capability for communicating with CDMA waveforms and may use CDMA waveforms based on transmitting the indication. The UE may also receive one or more parameters associated with using the CDMA waveforms, and may use CDMA waveforms based on the one or more parameters. The uplink channel may be a random access channel (RACH) and may support RACH transmissions, or may be a data channel and support data transmissions.
Abstract:
This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for lens design for full-duplex communication. In some aspects, a device may use a lens design that enables full-duplex operation through a lens by facilitating an avoidance or mitigation of self-interference during full-duplex operation. The lens may have a first, antenna-facing surface and a second, outward-facing surface and, to avoid or mitigate self-interference due to reflection off the lens, the first surface may have a first curvature associated with a relatively small radius. In such examples, the device may transmit wireless signaling from a transmitting element and a reflection off the lens may be dispersed or otherwise oriented away from a receiving element in accordance with a design of the first curvature. In some implementations, the lens may include an anti-reflective coating to further reduce reflection off the lens.
Abstract:
A mobile wireless device may dynamically alter a downlink MIMO function by switching it on and off, or switching between different downlink MIMO configurations, such as 2×MIMO and 4×MIMO. Still further, a mobile device having greater than two antennas may dynamically select a subset of the antennas to be used to receive a MIMO transmission, and further, enable a mobile device to request a subset of antennas at a base station to be used for the MIMO transmission. This dynamic control of the MIMO mode or configuration may be achieved by using implicit signaling, by way of an enlarged code word set in CQI feedback transmissions, or by using explicit signaling, by way of E-DPCCH orders. In this way, a MIMO-capable mobile device may dynamically be configured for downlink MIMO transmissions as the conditions demand, enabling MIMO to be switched off when its use might otherwise cause performance to suffer.
Abstract:
A method of determining a distance estimate between a mobile device and a wireless transceiver communicating with the mobile device on at least one multi-carrier signal includes: receiving at least one multi-carrier signal; selecting at least one carrier signal from the at least one multi-carrier signal; measuring a signal characteristic of the at least one carrier signal from the at least one multi-carrier signal; and determining the distance estimate between the mobile device and the wireless transceiver based at least partially upon the signal characteristic.
Abstract:
Aspects relate to an array antenna and communication using the array antenna. In some examples, the array antenna includes a first array of antenna elements arranged according to a first circle and a second array of antenna elements arranged according to a second circle, where the first circle and the second circle are concentric circles. In some examples, the first array of antenna elements is arranged with an angular offset with respect to the second array of antenna elements. For example, a first radius associated with a first antenna element of the first array of antenna elements may be offset at an angle with respect to a second radius of a second antenna element of the second array of antenna elements.
Abstract:
A method of wireless communication by a user equipment (UE) includes receiving, from a serving cell, information to assist the UE with interference cancellation of at least one neighbor cell. The method also includes performing interference cancellation based on the information. A method of wireless communication by a network device includes obtaining information to enable interference cancellation of a neighbor cell. The method also includes transmitting the information to assist a user equipment (UE) with interference cancellation of the neighbor cell.
Abstract:
A method for wireless communication performed by a head-mounted user equipment (UE), the method includes determining a first spatial relationship between an eye of a human user of the head-mounted UE and physical transmission and reception ports of the head-mounted UE; based on the first spatial relationship, determining a second spatial relationship between a plurality of radio frequency (RF) beam directions of the head-mounted UE and the eye of the human user; selecting a first RF beam direction from among the plurality of RF beam directions based at least in part on the second spatial relationship with respect to the first RF beam direction; and transmitting or receiving RF radiation using a first RF beam conforming to the first RF beam direction.
Abstract:
Embodiments include methods for managing component temperatures in wearable devices by a remote computing device, such as an edge server, instructing changes in wearable device component processing loads, operations or operating modes. Methods performed in a wearable device receiving data from an edge server may include obtaining a plurality of temperature measurements from a plurality of hardware components, transmitting the temperature measurements to the edge server, receiving an instruction related to operations of an application executing on the processor of the wearable device, and adjusting an operating parameter based on the received instruction. Methods performed in the edge server include receiving the temperature measurements from the wearable device, identify one or more adjustments to operations of the plurality of hardware components based on the plurality of temperature measurements, and sending the wearable device an instruction to adjust operations of at least one of the plurality of hardware components.
Abstract:
Attention evaluation by an extended reality system, the system determining one or more regions of interest (ROI) for an image displayed to a user. The system may also receive eye tracking information indicating an area of the image that the user is looking at. The system may further generate focus statistics based on the area of the image at which the user is looking at and the one or more ROI; and output the generated focus statistics.