56 results about "Antenna correlation" patented technology

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.

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.

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.

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.

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.

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.

An apparatus, a method, and a computer program product for carrier transmission are provided. An example method may include receiving, from a second wireless device, a broadcast communication indicating location information associated with the PUE, a target Rx signal power associated with an antenna of the PUE, and a power headroom relative to the target Rx signal power. The example method may also include transmitting a communication to the second wireless device to indicate to the PUE that the first wireless device is present based on the location information, the target Rx signal power, or the power headroom.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may select a first transmit power level associated with a first expected radiation power from antenna(s) of the UE. Selection of the first transmit power level is based at least in part on the first expected radiation power complying with a specific absorption rate (SAR) threshold. The UE may increase the first transmit power level to a second transmit power level associated with a second expected radiation power from the antenna(s) of the UE. The increase to the second transmit power level is based on application of an antenna efficiency metric associated with the antenna(s) of the UE to the second expected radiation power to determine a reduced expected radiation power. The UE may perform transmission(s) from the antenna(s) at the second transmit power level based on the reduced expected radiation power satisfying the SAR threshold.

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.

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.

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.

A system for enabling cellular properties in a broadcast satellite Set Top Box (STB) using a cellular network. The system includes a satellite receiver, a cellular antenna, and a satellite receiver STB. The satellite receiver receives broadcast signals from a satellite. The broadcast signals includes an encapsulated video feed. The cellular antenna receives cellular signals from a cellular tower. The cellular antenna directs the cellular signals to a cellular chipset. The satellite receiver STB is associated with the satellite receiver and the cellular antenna. The satellite receiver STB includes a STB circuit board for processing the broadcast signals from the satellite receiver to present video feed received from the satellite and for processing cellular signals from a cellular tower. The satellite receiver STB is configured to transmit the broadcast signals to end user broadcast devices and transmit the cellular signals to end user cellular devices.

A method for positioning includes transmitting, from a user equipment (UE), a UE capability message indicating a capability of the UE to process one or more positioning reference signals (PRSs) transmitted from one or more transmitting antennas and received at one or more receiving antennas of the UE; receiving, at the UE, assistance data based on the UE capability message, the assistance data including information for processing the one or more PRSs transmitted from the one or more transmit antennas; receiving, at one or more receive antennas of the UE, one or more PRSs from one or more transmit antennas; and obtaining one or more measurements based on the one or more PRSs, and associating each of the one or more measurements with one of the one or more transmitting antennas as a PRS source antenna and one of the one or more receiving antennas as a PRS reception.

This invention discloses a flexible beam optimization method and system for phased arrays based on phase-adaptive complex plane iterative rotation search. It primarily addresses the problem of severely reduced feasible solution space caused by linearizing non-convex lower bound constraints in existing array synthesis methods. The implementation scheme is as follows: initializing array antenna parameters; establishing non-convex constraints related to array solution requirements; linearizing the non-convex constraints to obtain convex constraints; adding corresponding phase changes to the convex constraints to construct relevant convex optimization subproblems; solving the convex optimization subproblems to obtain weighted solutions; calculating the required phase based on the weighted solutions and iteratively updating it to calculate the array antenna radiation pattern. This invention transforms the original non-convex problem into a convex problem through linearization approximation and avoids solution space reduction through adaptive phase iteration and rotation of the search space. It improves beam performance of array antenna synthesis while maintaining computational efficiency and can be used for signal detection or target recognition in various complex array synthesis scenarios.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may receive one or more uplink reference signals that are associated with a plurality of antennas at a user equipment (UE). The network node may transmit an indication of a network-node-based uplink antenna selection for the UE, the network-node-based uplink antenna selection being linked to specific precoding assigned to a future uplink transmission, the network-node-based uplink antenna selection being based at least in part on the one or more uplink reference signals. Numerous other aspects are described.

Certain aspects of the present disclosure provide techniques for wireless communications. An example method includes receiving, from a network entity, transmit antenna correlation information associated with the network entity; performing an equalization operation based at least in part on one or more decimation factors, the one or more decimation factors being associated with the transmit antenna correlation information; and communicating with the network entity in accordance with the equalization operation.

Embodiments of the present disclosure provide method and apparatus for antenna calibration. A method implemented at a first network device. The method includes receiving a first radio signal generated by the first network device via a receiver connected to an antenna of the first network device. The method further includes receiving at least one second radio signal from at least one second network device via the antenna of the first network device. The method further includes determining an impairment related to the antenna of the first network device based on the received first radio signal and the at least one second radio signal. There is a line of sight (LOS) path between the antenna of the first network device and the antenna of each of the at least one second network device.

Techniques and apparatus are described for generating a compressed radio frequency (RF) exposure map and using such compressed RF exposure map to determine a transmit power that meets RF exposure compliance limits. An exemplary method generally includes obtaining a first RF exposure map associated with at least one antenna of a wireless device and converting the first RF exposure map to a second RF exposure map. The second RF exposure map is compressed relative to the first RF exposure map. Another exemplary method includes accessing an RF exposure map associated with at least one antenna of the wireless device. The RF exposure map includes a representation of maximum RF exposure for a region of the RF exposure map. The method also includes transmitting a signal from the antenna at a transmit power that complies with the RF exposure limits, determined based on the RF exposure map.

The invention relates to the related field of antennas, in particular to a high-gain and high-efficiency mobile phone frame antenna which comprises a main board, a short circuit point, a metal frame, a gap end, a clearance area, a first micro-strip feeder line and a switching assembly. In the first design, a single-point feed mode can be adopted by the first microstrip feed line to feed one unit and excite a plurality of radiation structures at the same time, so that high-gain end-fire radiation is realized, a power division network is omitted, the size of the antenna is reduced, and the efficiency of the antenna is improved; the radiation structure can be fed in a direct contact feeding mode and an electromagnetic coupling feeding mode, and the excitation mode of the antenna is controlled in real time according to the state of the radio frequency switch arranged inside, so that the free switching of three radiation modes can be realized, the system complexity and size of the antenna are remarkably reduced, and the overall efficiency of the antenna system is improved.

The present disclosure is directed to buried utility locating devices, systems, and methods having a plurality of spatially separated GNSS antennas. Baselines or other spatial relationships may be formed between pairs of position estimates associated with the GNSS antennas to determine information about the position, heading, and tilt / pose of the utility locating device.

A method performed by a receiving end in a wireless communication system is provided. The method includes receiving one or more reference signals (RSs) from a transmitting end, identifying, based on channel frequency response (CFR) identified based on the received one or more RSs, one or more matrixes associated with a plurality of antennas, which are included in the receiving end or the transmitting end and are for transmitting downlink data, converting the identified one or more matrixes into values associated with angles of beams formed by the plurality of antennas, determining, based on the values associated with the angles of the beams, one or more precoding matrix indicators (PMIs), which can be applied to the plurality of antennas, and identifying a first PMI corresponding to a maximum downlink data throughput from among the one or more PMIs.

A processor of an electronic device is provided. The processor, while a portion of a flexible display is inserted into a first housing, identifies the execution of an application for transmitting information, based on identifying an external object adjacent to an antenna based on sensor data, controls an actuator in order to draw out a portion of the flexible display from the first housing, and executes a communication function based on the information, by controlling the antenna spaced apart from the external object, by means of a second housing drawn out from the first housing by means of the actuator.

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.

Techniques and apparatus for reserve energy allocation among radios of a wireless device based on spatial information of radio frequency (RF) exposure contributions among antennas of the wireless device are described. An example technique includes determining RF exposure contribution information associated with a plurality of antennas for radio(s) of the wireless device. The RF exposure contribution information includes, for each antenna, a respective indication of RF exposure contribution from the antenna on RF exposure contributor(s). A reserve level for each of the radio(s) is determined, based at least in part on the RF exposure contribution information. First signal(s) are transmitted using at least one of the radio(s) at a first transmit power determined based at least in part on an RF exposure limit associated with each of the radio(s) and the reserve level for each of the radio(s).

Methods, systems, and devices for wireless communication are described. Various aspects relate to waveform specific closed-loop antenna selection. Some aspects more specifically relate to mechanisms according to which a user equipment (UE) may receive per-waveform antenna selection results from a network entity. In some examples, the UE may transmit an information report to the network entity to indicate parameters associated with a set of antennas of the UE, with the parameters including a respective set of parameters for each of multiple waveforms supported or used by the UE. For example, the parameters may include a first set of parameters associated with the set of antennas for a first waveform and a second set of parameters associated with the set of antennas for a second waveform. The UE may receive the per-waveform antenna selection results from the network entity based on the information report.

One or more antennas of an electronic device are selected to transmit wireless signals based at least in part on maximum transmitted power limits (MTPLs) associated with the antennas. The one or more antennas may also be selected based on signal characteristic values, efficiency values, or both signal characteristic values and efficiency values.