106 results about "Antenna correlation" patented technology

Various aspects of the present disclosure relate to a UE that receives a resource allocation for wireless communication associated with using at least two antennas of the UE, and the wireless communication includes a respective signal associated with each respective antenna of the two antennas. The UE can multiplex a set of modulation symbols associated with the two antennas based on a cyclic-prefix orthogonal frequency-domain multiplex operation. The UE can then transmit the respective signal associated with each respective antenna of the two antennas based on the multiplexing, where a delay of a first signal associated with a first antenna relative to a second signal associated with a second antenna is based on the resource allocation for the wireless communication.

In some aspects of the disclosure, an apparatus for wireless communication by a user equipment (UE) includes a primary receive (PRx) path associated with a first antenna and configured to receive a wireless signal. The apparatus further includes a diversity receive (DRx) path associated with a second antenna antenna. The apparatus further includes a phase shifter configured to phase-modify an interference signal from the second antenna based at least in part on a physical distance between the first antenna and the second antenna and further based on an angle of arrival (AoA) associated with the interference signal. The apparatus further includes a circuit configured to generate a received signal based on the wireless signal and the phase-modified interference signal.

Provided in the present disclosure are an information processing method, an apparatus, a network device and a terminal. The information processing method comprises: determining indication information related to an antenna; and by using dynamic signaling, transmitting to a terminal the indication information, the indication information being used for power saving of a network device.

The invention discloses a communication and inductance integrated channel modeling method with space consistency, which comprises the following steps: 1) setting an initialization scene, and configuring related parameters of an antenna; 2) generating powers, azimuth angles and pitch angles of the proprietary clusters and the common clusters and distances between the first and the last passing clusters and a transmitting and receiving end, and then generating azimuth angles, pitch angles and propagation distances of sub-paths in the clusters; 3) calculating the probability of existence of the proprietary cluster and the common cluster on the antenna array; 4) calculating and generating channel impulse response (CIR) of the sensing channel and the communication channel; and 5) simulating and calculating the existence condition of the clusters on the array surface, a time autocorrelation function (TACF) and a space autocorrelation function (SCCF), and judging whether the channel modeling method has accuracy and space consistency or not. The channel modeling method disclosed by the invention is based on a common cluster and a proprietary cluster of a sensing channel and a communication channel, the relationship between the two channels is considered, the channel space consistency is comprehensively analyzed, and the channel modeling method has important significance for guiding the design of an ISAC system.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration for a sounding reference signal (SRS) resource set that includes a first SRS resource associated with a first SRS resource indicator (SRI) and a first antenna of the UE, and a second SRS resource associated with a second SRI and a second antenna of the UE. The UE may receive first downlink control information (DCI) that schedules a first uplink communication on a first uplink channel, wherein the first DCI indicates the first SRI. The UE may transmit, using the first antenna, the first uplink communication using a transmit power that is based at least in part on a weighted average of a first pathloss associated with the first antenna and a second pathloss associated with the second antenna. Numerous other aspects are described.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may measure a first amount of reflected power associated with a first antenna of the UE and measure a second amount of reflected power associated with a second antenna of the UE. The UE may adjust an input power for the first antenna based at least in part on the first amount of reflected power or the second amount of reflected power and may perform a transmission via the first antenna using the adjusted input power for the first antenna. For example, the UE may increase the input power for the first antenna by an amount that is based at least in part on the first amount of reflected power.

Procedures, methods, architectures, apparatuses, systems, devices, and computer program products using wireless transmit / receive unit (WTRU) configured for sending first information indicating a set of one or more antenna port groups, wherein each antenna port group, of the set of one or more antenna port groups, is associated with at least one transmit antenna of the WTRU; receiving second information indicating at least one set of precoders; receiving third information indicating a precoder of the at least one set of precoders, a scaling value, and a phase value; and sending via at least one transmit antenna element associated with the at least one antenna port group, a transmission having at least one symbol based on the precoder, the scaling value associated with the at least one antenna port group and the phase value associated with the at least one antenna port group.

The technology disclosed herein relates to a multi-link device and methods, media, and systems associated with the multi-link device. The multi-link device can establish multiple wide area network (WAN) connections with multiple base stations. The multi-link device has multiple sets of antennas, and each WAN connection is associated with at least one of the multiple sets of antennas. The multi-link device also has a local area network (LAN) interface that is capable of establishing a plurality of LAN connections. The multi-link device can determine which of the WAN connections has a highest uplink bandwidth or a lowest uplink bandwidth. In some embodiments, the multi-link device ranks each of the WAN connections based on uplink bandwidth. Further, the multi-link device can transmit various sets of data (e.g., video data, image data, audio data, location data) to the multiple base stations via the WAN connections that are concurrently active.

Disclosed herein are systems, methods and / or computer programs for determining time and / or angle-based measurements for use in position determination. The apparatus may comprise means for receiving, at a plurality of antennae, a reference signal associated with positioning and determining cross-correlation values comprising a cross correlation between the reference signal received at each antenna and a known reference signal associated with positioning. There may also be provided means for estimating a channel response for a reference antenna of the plurality of antennae using the cross correlation values, the known reference signal and an antenna correlation comprising a known relationship between a channel response of each antenna of the plurality of antennae and the channel response of the reference antenna, and determining a time of arrival and / or an angle of arrival of the received reference signal based on the estimated channel response for the reference antenna.

A radar apparatus includes three or more transmission antennas, a processor, and a memory having instructions that, when executed by the processor, cause the processor to: apply a phase rotation amount corresponding to a Doppler shift amount and a code sequence to a transmission signal, and perform multiplexing transmission of the transmission signal from the three or more transmission antennas. Each of the three or more transmission antennas is associated with each of a plurality of combinations of the Doppler shift amount and the code sequence. Each of the plurality of combinations is different at least one of the Doppler shift amount and the code sequence. Doppler shift amounts of those of the plurality of combinations which are associated respectively with at least two transmission antennas of the three or more transmission antennas are a same Doppler shift amount.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of a loss of coherence associated with the UE. The UE may perform at least one adjustment to a transmission parameter or a reception parameter based at least in part on the indication of the loss of coherence. For example, the adjustment to the transmission parameter may include adjusting a transmit power, adjusting a transmit frequency, adapting a transmission time, changing an antenna port, or a combination thereof. Additionally, or alternatively, the adjustment to the reception parameter may include refraining from joint channel estimation across a plurality of slots, adjusting a downscaling parameter or a frequency tuning associated with at least one reception antenna, refraining from blind decoding, or a combination thereof. Numerous other aspects are described.

Systems and methods for establishing a connection between a vehicle and a base station are provided. A base station sector is divided into sub-sectors each associated with a narrow beam antenna. To determine the position of the vehicle without using a complementary network, the base station and the vehicle may associate each sub-sector with a corresponding set of radio access preamble sequences. Accordingly, the position of the vehicle may be determined based on a particular radio access preamble sequence included in a synchronization message exchange. Additionally or alternatively, the base station may be configured to sequentially activate the narrow beam antennas to detect which narrow beam is active when the vehicle responds to a message transmitted via a narrow beam.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a frequency dependent residual sideband (FDRSB) indication that indicates an average FDRSB power level associated with at least one transmission antenna of a network node. The UE may receive a communication from the network node, the receiving comprising demodulating the communication based on a state of an FDRSB correction function of the UE, the state of the FDRSB correction function being based on at least one of the average FDRSB power level or an estimated total noise level. Numerous other aspects are described.

Methods, apparatus, systems, and articles of manufacture are disclosed to perform a self-test of a wireless networking device. Examples disclosed herein include communication controller circuitry to cause the first WNIC to obtain a plurality of data packets from a second WNIC at a frequency. Examples herein further include signal strength determination circuitry to determine a received signal strength indicator (RSSI) value for an antenna of the first WNIC. Examples herein further include performance determination circuitry to increment a counter associated with the antenna when the RSSI value does not satisfy a first threshold and report an error associated with the antenna to a back office facility when the counter associated with the antenna does not satisfy a second threshold.

Various aspects of the present disclosure generally relate to wireless communication. Some aspects more specifically relate to multiple input multiple output (MIMO) spinal code encoding schemes. In some aspects, a transmitter may encode a message in accordance with configuration information associated with a MIMO spinal code encoding scheme, resulting in a vector that includes multiple spinal symbols. The transmitter may further map the multiple spinal symbols to multiple transmit antennas, such as by distributing the multiple spinal symbols across multiple layers associated with the multiple transmit antennas and across one or more resource elements (REs) in accordance with the configuration information. The transmitter may transmit, using the multiple transmit antennas and the one or more REs, and a receiver may receive, using multiple receive antennas and the one or more REs, the multiple spinal symbols.

Aspects described herein relate to transmitting user equipment (UE) capability information related to a number of sounding reference signals (SRSs) to transmit for a number of antennas and a number of transmit chains at the UE, receiving a SRS configuration of SRS resources for transmitting the number of SRSs, transmitting the number of SRSs over the SRS resources, and receiving an antenna selection indication related to a set of one or more of the number of antennas to be associated to the number of transmit chains for performing antenna selection at the UE. Other aspects relate to receiving UE capability information, transmitting the SRS configuration, receiving the SRSs, and transmitting the antenna selection information.

An embodiment provides a measurement arrangement for characterizing a radio frequency arrangement comprising a plurality of antennas. Measurement arrangement comprises a dielectric waveguide slab with a plurality of frequency converting structures, arranged in or on the dielectric waveguide slab. Measurement arrangement further comprises a plurality of waveguide transitions arranged at different positions of the dielectric waveguide slab and are coupled to respective radio frequency components. Radio frequency components are configured to transmit and / or receive radio signals. Frequency converting structures are associated with respective antennas of the plurality of antennas, and are configured to perform a frequency conversion on signals received, resulting in frequency-converted signals. Frequency converting structures are further configured to couple respective antennas with the dielectric slab in a frequency converting manner to establish a frequency-converting coupling between the antennas and the plurality of waveguide transitions to cause a frequency-converting coupling between the antennas and the radio frequency components.

A computing device or scanner (100, figure 1) comprises a housing 104 and a display module (300, figure 3) supported by the housing. The display module comprises a display sub-assembly 428 and a communications sub-assembly 432. The display sub-assembly includes an outer layer 120, a display layer 412, and a backlight 408. The communications sub-assembly includes a conductive shield 304 and an antenna 440 mounted to a surface of the conductive shield facing towards the backlight. The antenna is configured for wireless communication through the outer layer. A perimeter of the conductive shield may correspond to a perimeter of the light emitter. The conductive shield may include an aperture 444,448 configured to mitigate eddy currents in the shield associated with the antenna. The antenna may include a substrate 508 carrying an antenna element 512, and a ferrite sheet between the substrate and the conductive shield. A cover 420 may be disposed between the backlight and the antenna, the cover and the outer layer enclosing the backlight and the display layer, wherein the conductive shield is coupled to the cover.

A phased array computing system can include a mounting surface with a plurality of antenna disposed thereon. The mounting surface can include motion sensors disposes at a plurality of different sensor positions to detect the changes to the mounting surface. The system can receive motion data generated by the motion sensors. The system can compute, based on the motion data location offsets for the motion sensors from their original positions on the mounting surface. The system can compute a deformed position for each antenna on the mounting surface using the location offsets for the motion sensors. The system can update, based on the deformed positions, a signal model associated with the antennas to compensate for deformations at the mounting surface during sensor processing.

The invention discloses a sequence matching method of a transmitting antenna and electronic equipment. The method comprises the following steps: storing a first bitmap used for representing a signal detection result of each element in a first matrix corresponding to a reference transmitting antenna; determining a second element passing signal detection from a target matrix obtained by aggregating the ith group of second matrixes in the M groups of second matrixes; determining an echo signal matched with the second element from echo signals corresponding to the M transmitting antennas based on the target Doppler parameter interval, and obtaining a third element corresponding to the echo signal; determining that a target transmitting antenna corresponding to a target element is associated with a reference transmitting antenna under the condition that a first numerical value is found at a second position corresponding to the target element in third elements in the first bitmap; and determining the antenna sequence corresponding to each transmitting antenna by using the association relationship between the target transmitting antenna and the reference transmitting antenna. The technical problem that many memory resources are occupied in the prior art is solved.

The utility model relates to the related technical field of fishtail antennas, in particular to fishtail antenna performance detection equipment which comprises a base, a panel is fixedly connected to the upper surface of the base, a lifting mechanism is arranged on the upper surface of the panel, a connecting shaft is arranged on the surface of one side of the lifting mechanism, and the connecting shaft is connected with the panel. And a detection mechanism is arranged on the inner side surface of the connecting shaft. According to the fishtail antenna performance detection equipment, through the arrangement of the lifting mechanism and the detection mechanism, when the fishtail antenna performance detection equipment is used, a signal generator generates a detection signal, the detection signal is received by a signal receiver and displayed in a control center, a fishtail antenna is inserted into the signal generator, a knob is rotated to tighten a bolt, and a base plate compresses the antenna to realize fixation; the servo motor is started to drive the threaded rod to rotate, the lifting plate is driven to move vertically, the connecting shaft moves along with the lifting plate, and detection of different heights is achieved. The driving motor is installed on the connecting shaft and drives the fixing block to rotate after being started, so that the fishtail antenna rotates to detect the performance in different directions, and the detection requirement is met.

Apparatus, methods, and computer program products for wireless communication are provided. An example method may include transmitting, to a network node, information associated with a first quantity of effective downlink transmit (Tx) antennas associated with the UE. The example method may further include receiving, from the network node, a transmission indicative of a set of precoding functions for a set of Tx antennas associated with the network node, where each precoding function of the set of precoding functions is associated with a respective group of multiple Tx antennas of the set of Tx antennas associated with the network node, and where a second quantity of precoding functions is smaller than or equal to the first quantity of the effective downlink Tx antennas. The example method may further include receiving, from the network node, a second transmission based on the set of precoding functions.

A radar transmitter includes: a plurality of transmission antennas that transmit a transmission signal; and a transmission circuit that applies a phase rotation amount corresponding to a Doppler shift amount and a code sequence to the transmission signal to perform multiplexing transmission of the transmission signal from the plurality of transmission antennas. Each of the plurality of transmission antennas is associated with each of a plurality of combinations of the Doppler shift amount and the code sequence. Each of the plurality of combination is different at least one of the Doppler shift amount and the code sequence, and the Doppler shift amounts of those of the plurality of combinations which are associated respectively with at least two transmission antennas of the plurality of transmission antennas are the same Doppler shift amount, the at least two transmission antennas being a first sub-array antenna.

Methods and apparatuses for non-coherent uplink timing offset estimation and compression for channel state information (CSI) estimation and tracking in wireless communication systems. A method includes receiving, from a user equipment (UE), information for an autonomous uplink timing alignment of the UE; estimating, based on the information, a timing offset using a non-coherent maximum likelihood estimator, wherein a plurality of timing offsets associated with a plurality of antennas is combined to estimate the timing offset; compensating for the timing offset based on an adaptive operation using a channel condition; and updating a reference of the non-coherent maximum likelihood estimator based on the compensated timing offset.

Techniques and apparatus for radio frequency (RF) exposure compliance based on spatial information of RF exposure contributions among antennas of a wireless device are described. An example method generally includes accessing RF exposure contribution information associated with a plurality of antennas of the wireless device. At least one time-averaging operation is performed for at least a first antenna, based on the RF exposure contribution information. A transmit power limit is determined for the first antenna, based on the at least one time-averaging operation. A signal is transmitted from the first antenna at a transmission power level determined based at least in part on the transmit power limit in compliance with an RF exposure limit.

Certain aspects of the present disclosure provide techniques for sending capability information associated with a plurality of antennas of the user equipment (UE), the capability information including a field that indicates whether each antenna group, of a plurality of antenna groups associated with the plurality of antennas, is coherent, wherein a first antenna group of the plurality of antenna groups is coherent and a second antenna group of the plurality of antenna groups is not coherent; and communicating using the first antenna group and the second antenna group in accordance with the capability information.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a configuration that configures a first band for a supplementary uplink (SUL), wherein the SUL is associated with a first antenna of the UE. The UE may receive, via a second antenna of the UE, a downlink reference signal on a second band, wherein the second band at least partially overlaps in frequency with the first band. The UE may switch the SUL to be associated with the second antenna, instead of the first antenna, based at least in part on a measurement associated with the downlink reference signal on the second band. The UE may transmit, via the second antenna, an SUL transmission on the first band. Numerous other aspects are described.

The apparatus may be a wireless device or wireless device component configured to obtain APC information for a plurality of frequencies associated with an antenna of the wireless device and measure a set of PS at each of the plurality of frequencies via the antenna. The apparatus may further be configured to identify a location and an orientation of the wireless device based on the APC information and the set of PS, and output an indication of the location and the orientation of the wireless device.

Methods and apparatus for radio frequency (RF) exposure compliance across antenna grouping transitions are described. An example method includes transitioning, during a run-time of a wireless device, from operating according to a first transmit scenario with a first set of antenna groups for a plurality of transmit antennas to operating according to a second transmit scenario with a second set of antenna groups, while maintaining compliance with an RF exposure limit across the transition. The transitioning includes determining the second set of antenna groups, such that an RF exposure history associated with the first set of antenna groups for the plurality of transmit antennas is maintained for the second set of antenna groups across the transition. The method also includes transmitting, from at least one transmit antenna in the second set of antenna groups, while operating according to the second transmit scenario.