Abstract: Communication systems and methods in accordance with various embodiments of the invention utilize modulation on zeros. Carrier frequency offsets (CFO) can result in an unknown rotation of all zeros of a received signal's z-transform. Therefore, a binary MOCZ scheme (BMOCZ) can be utilized in which the modulated binary data is encoded using a cycling register code (e.g. CPC or ACPC), enabling receivers to determine cyclic shifts in the BMOCZ symbol remitting from a CFO. Receivers in accordance with several embodiments of the invention include decoders capable of decoding information bits from received discrete-time baseband signals by: estimating a timing offset for the received signal; determining a plurality of zeros of a z-transform of the received symbol; identifying zeros from the plurality of zeros that encode received bits by correcting fractional rotations resulting from the CFO; and decoding information bits based upon the received bits using a cycling register code.

Abstract: An access node, user equipment, apparatuses, methods, and computer programs for a communication system. An apparatus for a wireless transmitter device includes a transmitter module for transmitting wireless transmissions and a processing module, which controls the transmitter module. The processing module generates one or more transmit symbols in a Delay-Doppler domain to obtain a Delay-Doppler representation; transforms the Delay-Doppler representation into a Time-Frequency domain to obtain a Time-Frequency representation, the Time-Frequency representation having a first bandwidth and a first duration; adds pilot symbols to the Time-Frequency representation to obtain a Time-Frequency representation with an extended second bandwidth or an extended second duration; transforms the Time-Frequency representation with the extended second bandwidth or the extended second duration to the time domain to obtain a time domain representation; and transmits the time domain representation to a wireless receiver device.

Abstract: A communication device is provided that includes a baseband circuit and a transmitter configured to transmit a first signal and a projected signal. The baseband circuit is configured to determine the projected signal based on an estimated signal state information such that an energy of a shaped projected signal is smaller than an energy of a shaped signal. The estimated signal state information is an estimate of a signal state information based on the first signal and a received signal that is received by a receiver of the second communication device. The shaped projected signal is the projected signal received by the receiver of the second communication device and filtered by a filter of the second communication device. The shaped signal is the received signal filtered by the filter of the second communication device.

Abstract: Disclosed are various embodiments for sensing irregular wear of a tire tread. A tire is providing having an innerliner adjacent to a belt package, an undertread adjacent to the belt package opposite the innerliner, and a tread adjacent to the undertread opposite the belt package. The tread includes a plurality of tread elements and a conductive filament disposed laterally within the tread. The conductive filament includes a pair of ends extending radially through the undertread and the belt package to the innerliner and terminates into a corresponding pair of sensor contacts. A sensor adjacent to a radially inward side of the innerliner is also included in the tire, the sensor having a pair of electrical contacts in electrical contact with the sensor contacts.

Abstract: Disclosed are various embodiments for sensing wear of a tire tread. A tire comprises an innerliner, a plurality of belts layered adjacent to the innerliner, a tread adjacent to the plurality of belts opposite the innerliner and a treadwear sensor positioned in the innerliner. The treadwear sensor comprises a base plate on an interior side of the innerliner and a tube extending from the base plate through the innerliner and the plurality of belts to a first wear depth in the tread. When the tread is worn to the first wear depth, an end of the tube is exposed through the tire.

Abstract: Systems and methods for transmitting data using various Modulation on Zeros schemes are described. In many embodiments, a communication system is utilized that includes a transmitter having a modulator that modulates a plurality of information bits to encode the bits in the zeros of the z-transform of a discrete-time baseband signal. In addition, the communication system includes a receiver having a decoder configured to decode a plurality of bits of information from the samples of a received signal by: determining a plurality of zeros of a z-transform of a received discrete-time baseband signal based upon samples from a received continuous-time signal, identifying zeros that encode the plurality of information bits, and outputting a plurality of decoded information bits based upon the identified zeros.

Abstract: A tire includes a pair of sidewalls extending from a respective bead area to a tread. The tread is formed with a plurality of tread elements and a radially outer surface, and a chamber is formed in one of the tread elements. A sensor unit is mounted to the tire and includes a pair of electrical contacts. The polymer plug includes a wire disposed in the chamber. The wire includes proximal ends and a distal end near a radially outer surface of the tread. A liquid polymer is injected into the chamber and cured. An electrical circuit is formed by each proximal end of the wire electrically contacts a respective one of the sensor unit electrical contacts. When the tread element wears down to the distal end of the wire, the wire and the circuit break. A notice is transmitted by the sensor unit when the circuit breaks.

Abstract: Communication systems and methods in accordance with various embodiments of the invention utilize modulation on zeros. Carrier frequency offsets (CFO) can result in an unknown rotation of all zeros of a received signal's z-transform. Therefore, a binary MOCZ scheme (BMOCZ) can be utilized in which the modulated binary data is encoded using a cycling register code (e.g. CPC or ACPC), enabling receivers to determine cyclic shifts in the BMOCZ symbol resulting from a CFO. Receivers in accordance with several embodiments of the invention include decoders capable of decoding information bits from received discrete-time baseband signals by: estimating a timing offset for the received signal; determining a plurality of zeros of a z-transform of the received symbol; identifying zeros from the plurality of zeros that encode received bits by correcting fractional rotations resulting from the CFO; and decoding information bits based upon the received bits using a cycling register code.

Abstract: The invention provides a method and system for automatically detecting a swap of tires on a vehicle using RSSI levels obtained from tires equipped with transmitters. The obtained RSSI level distributions are used to artificially generate a set of training records, allowing for robust training of a machine learning algorithm. The machine learning algorithm is thereby enabled to provide efficient detection of tire swaps, and to generate a corresponding output signal.

Abstract: Disclosed are various embodiments for monitoring tire sensors. An intermediate data transfer apparatus can communicate with tire pressure monitoring (TPM) sensors of tires within a predefined distance of the apparatus to retrieve sensor information. The intermediate data transfer apparatus can generate sensor data records including the retrieved sensor information can be generated and stored on a remote computing device.

Abstract: Disclosed are examples for detecting a displacement of a sensor within a tire. A baseline signal strength is compared to a measured signal strength. When a calculated comparison value (e.g., delta standard deviation) meets or exceeds a threshold value, the sensor is determined to be displaced from the expected location in the tire. When a sensor is determined to be displaced or otherwise loose from the expected location within the tire, an alert can be generated to provide notice to the vehicle driver or other entity of the issue so that the issue can then be remedied.

Abstract: Disclosed are various embodiments of permanent active sensors in a tire achieved by partially embedding a sensor component in a green tire and adding a removable power source after the tire is cured. The printed circuit board can be encapsulated in the rubber of the tire with a power source housing connected to the electronics through the rubber. In another aspect, the printed circuit board can be directly connected to the power source housing. The sensor interlocks with the rubber of the tire. Various structural features of the sensor, such as a flange or channels for the rubber, can be used to secure the sensor in the rubber of the tire.

Abstract: An integrated tread wear sensor and tire pressure monitoring system sensor unit container for a tire includes a tread wear sensor plug and a sensor container. The tread wear sensor plug includes a cylindrical projection extending through an opening formed in a selected tread element of the tire. A flange extends outwardly from the projection and includes a contact surface that is mounted to an innerliner of the tire. A conductive wire is disposed in the tread wear sensor plug and includes proximal ends disposed in the flange and a distal end disposed near a radially outer surface of the projection. The sensor container includes a wall extending radially from the flange of the tread wear sensor plug and terminating in a lip. A container cavity is defined by the flange, the wall, and the lip, and receives a tire pressure monitoring system sensor.

Abstract: A tire sensor attachment structure is provided. The tire includes a pair of bead areas, a sidewall extending from each respective bead area to a tread, a carcass extending toroidally between each of the bead areas, and an innerliner that is disposed radially inwardly of the carcass. A sensor housing is attached to the innerliner, and defines an interior chamber. A sensor is disposed in the chamber. The tire sensor attachment structure includes a compressible body that is disposed in the chamber between the sensor and the innerliner.

Abstract: A receiver configured for receiving a wireless signal having a signal transmitted through a channel using resource elements of a wireless communications network has a determiner configured for determining a resource information indicating the resource elements and for determining a channel metric of the channel. There receiver has an associator configured for associating the resource information with the channel metric using an identity information contained in the signal.

Abstract: A piston of an internal combustion engine is disclosed. The piston includes a piston head with a piston bowl, a ring part and an annular cooling channel arranged between the ring part and the piston bowl. A closure element is provided to close the cooling channel in a direction away from the piston bowl. At least one guiding element is arranged in the cooling channel. The at least one guiding element provides a lug facing in a direction of an inner cooling channel wall and disposed at least partially circumferentially. The lug of the at least one guiding element is structured and arranged to direct cooling oil present in the cooling channel towards an upper region of the inner cooling channel wall relative to the closure element to facilitate cooling the upper region.

Abstract: Systems and methods for transmitting data using various Modulation on Zeros schemes are described. In many embodiments, a communication system is utilized that includes a transmitter having a modulator that modulates a plurality of information bits to encode the bits in the zeros of the z-transform of a discrete-time baseband signal. In addition, the communication system includes a receiver having a decoder configured to decode a plurality of bits of information from the samples of a received signal by: determining a plurality of zeros of a z-transform of a received discrete-time baseband signal based upon samples from a received continuous-time signal, identifying zeros that encode the plurality of information bits, and outputting a plurality of decoded information bits based upon the identified zeros.

Abstract: Communication systems and methods in accordance with various embodiments of the invention utilize modulation on zeros. Carrier frequency offsets (CFO) can result in an unknown rotation of all zeros of a received signal's z-transform. Therefore, a binary MOCZ scheme (BMOCZ) can be utilized in which the modulated binary data is encoded using a cycling register code (e.g. CPC or ACPC), enabling receivers to determine cyclic shifts in the BMOCZ symbol resulting from a CFO. Receivers in accordance with several embodiments of the invention include decoders capable of decoding information bits from received discrete-time baseband signals by: estimating a timing offset for the received signal; determining a plurality of zeros of a z-transform of the received symbol; identifying zeros from the plurality of zeros that encode received bits by correcting fractional rotations resulting from the CFO; and decoding information bits based upon the received bits using a cycling register code.

Abstract: A receiver configured for receiving a wireless signal having a signal transmitted through a channel using resource elements of a wireless communications network has a determiner configured for determining a resource information indicating the resource elements and for determining a channel metric of the channel. There receiver has an associator configured for associating the resource information with the channel metric using an identity information contained in the signal.

Abstract: A communication device is provided that includes a baseband circuit and a transmitter configured to transmit a first signal and a projected signal. The baseband circuit is configured to determine the projected signal based on an estimated signal state information such that an energy of a shaped projected signal is smaller than an energy of a shaped signal. The estimated signal state information is an estimate of a signal state information based on the first signal and a received signal that is received by a receiver of the second communication device. The shaped projected signal is the projected signal received by the receiver of the second communication device and filtered by a filter of the second communication device. The shaped signal is the received signal filtered by the filter of the second communication device.