Abstract: A wireless device may transmit ranging transmissions using a compressed PSDU. The compressed PSDU may be configured to support poll packets, response packets, and report packets. The compressed PSDU may comprise an identifier (ID) field, an address field, ID specific data, and a cyclic redundancy check (CRC) field. Further, the wireless device may use an optimized header IE for broadcast.

Abstract: Embodiments are disclosed for one-to-many and many-to-many ranging using narrowband assisted (NBA)-multi-millisecond (MMS) ultra wideband (UWB) protocols. Some embodiments include an initiator device that communicates with many responder devices. For example, the initiator device can transmit a control/initialization poll message via NB signaling that identifies a ranging cycle, and transmit a first set of MMS segments corresponding to the control/initialization poll message. The initiator device can receive a plurality of report frames from two or more responder devices via NB signaling subsequent to transmitting the first set of MMS segments, and transmit within the ranging cycle, a ranging results report message based at least on the plurality of report frames via narrowband signaling.

Abstract: A wireless device may use 2.5 MHz narrow band channel spacing. In some embodiments, clear channel assessment based listen before talk may be used to determine if a channel is idle or busy. In some embodiments, randomized channel access may be achieved using a pseudo random number generator on an allowed list of channels. In some embodiments, an avoid loitering mechanism may be employed to reduce interference with transmitters using the same frequency bands.

Abstract: Systems, methods, and mechanisms for an out-of-band (OOB) ultra-wide band (UWB) channel arbitration and/or channel coordination scheme. A device may transmit, periodically, an advertisement packet on an advertisement channel associated with a UWB channel. The device may transmit, according to a UWB channel usage pattern indicated by the advertisement packet, on the UWB channel. The advertisement packet may include a UWB transmit start time offset, a UWB transmit duration, a UWB transmit interval, information to determine a UWB transmit interval, and/or a UWB transmission type.

Abstract: Systems, methods, and mechanisms for an out-of-band (OOB) ultra-wide band (UWB) channel arbitration and/or channel coordination scheme. A device may scan an arbitration channel for a first time period, and based on the scanning, that the arbitration channel is not in use. The device may perform, on the arbitration channel, a first channel access procedure and perform, on the UWB channel, UWB communications during a UWB channel transmission opportunity.

Abstract: A method adapts a time synchronization between a mobile device and a transceiver module of a plurality of transceiver modules, wherein the method is performed by the transceiver module. The method includes listening, in at least some of a plurality of time slots, for a time synchronization signal from a further transceiver module of the plurality of transceiver modules, wherein each time slot of the plurality of time slots is allocated to a corresponding transceiver module of the plurality of transceiver modules. The method also includes adapting the time synchronization when a received time synchronization signal has a higher estimated accuracy than the time synchronization between the mobile device and the transceiver module. The method further includes transmitting a time synchronization signal for the further transceiver modules based at least in part on the time synchronization between the mobile device and the transceiver module.

Abstract: A master-slave system for communication over an ultra-wideband radio connection is proposed. The master-slave system comprises at least one slave device and one master device, wherein the slave device and the master device are configured to communicate over the ultra-wideband radio connection. The master device is configured to generate and transmit a request message to the slave device over a first channel of the ultra-wideband radio connection. The slave device is configured to receive the request message over the first channel of the ultra-wideband radio connection, generate at least one response message based on the request message, and transmit the at least one response message to the master device over the first channel of the ultra-wideband radio connection, and the master device is configured to receive the at least one response message.

Abstract: An apparatus for a vehicle includes processing circuitry configured to obtain identification information on a future passenger of the vehicle, the identification information comprising an ultra-wideband communication identification of a mobile device of the future passenger. The processing circuitry is also configured to locate the future passenger outside the vehicle using ultra-wideband communication, the ultra-wideband communication being performed between an ultra-wideband transceiver of the vehicle and the mobile device of the future passenger and being based on the ultra-wideband communication identification of the mobile device. The processing circuitry is further configured to compute guidance information based on the location of the future passenger of the vehicle, and provide the guidance information via an interface.

Abstract: Methods, systems, and devices are provided for wireless communication. A wireless communication device includes a transceiver to communicate with another wireless communication device. The wireless communication device further includes a processor to determine a pseudo-random value using a non-recursive function having at least one non-linear component. The processor further selects a wireless resource based on the pseudo-random value and uses the wireless resource for a wireless communication with the other wireless communication device.

Abstract: Methods and devices related to determining a propagation time of wireless transmissions between wireless communication devices are provided. A propagation time of wireless transmissions between a first wireless communication device and a second wireless communication device is determined. The determining is based on a roundtrip time of a wireless transmission exchange between the first wireless communication device and the second wireless communication device, a reply time of the wireless transmission exchange, and on the first time interval and the second time interval. The first time interval is a time interval between a first transmit event at the first wireless communication device and a second transmit event at the first wireless communication device. The second time interval is a time interval between a first receive event at the second wireless communication device and a second receive event at the second wireless communication device.

Abstract: A method for determining an occupied region of a first radio device is provided. According to the method, a signal is transmitted from the first radio device and received by at least two additional radio devices. Based on a propagation time of the signal from the first radio device to the additional radio devices, a surrounding region is determined around each of the additional radio devices in which the first radio device is located. The occupied region of the first radio device is determined based on an overlapping region which results from an overlapping of all surrounding regions. Alternatively, signals can also be transmitted from the additional radio devices and received by the first radio device. The method can be used to determine whether an automobile key having a radio transmitter is located in a vehicle.

Abstract: A master-slave system for communication over a Bluetooth Low Energy connection includes at least one slave device and at least one master device. The slave device and the master device are configured to communicate over the Bluetooth Low Energy connection. The slave device has a communication unit and a processing unit, the processing unit of the slave device being configured to generate a first query message with a header field and a payload field, the processing unit of the slave device being further configured to generate a first identity information item based on a first stored key and to save it as the first information item in the header field, and the communication unit of the slave device being configured to transmit the first query message thus generated to the master device over the Bluetooth Low Energy connection.

Abstract: An apparatus for determining the distance from a transmitter to a receiver is proposed, wherein the transmitter and the receiver are configured to communicate via a radio channel. The apparatus comprises at least one measuring unit configured to measure a received signal strength indicator value and a time-of-flight value of the radio channel. The apparatus further comprises a processing unit configured to compare the measured pair of the received signal strength indicator value and the time-of-flight value with stored pairs of received signal strength indicator values and time-of-flight values, wherein the stored pairs of received signal strength indicator values and time-of-flight values are each associated with a distance of the transmitter to the receiver, and wherein the processing unit is configured to determine the distance of the transmitter to the receiver based on the comparison result.

Abstract: The invention relates to a method for operating a transmitter unit (12) of a wireless key system of a motor vehicle (10), wherein a control device (16) of the transmitter unit (12) provides that, for a respective closing operation (S) in at least one measurement cycle (14), in each case in response to a polling message (15), in a plurality of successive time slots (19), in each case one of a plurality of anchor transmitters (13) of the transmitter unit (12) transmits an anchor message (17), and the measurement cycle (14) is ended by reception of a final message (18), which signals reception times of the anchor messages (17) measured by a wireless key unit (11). The invention provides that, for determining a transmission sequence (22) of the anchor transmitters (13), by means of an assignment rule (20) an assignment (21) of the anchor transmitters (13) to the time slots (19) is carried out, wherein the assignment rule (20) provides that the assignment (21) takes place variably over time.

Abstract: A master-slave system for communication over a Bluetooth Low Energy connection includes at least one slave device and at least one master device. The slave device and the master device are configured to communicate over the Bluetooth Low Energy connection. The slave device has a communication unit and a processing unit, the processing unit of the slave device being configured to generate a first query message with a header field and a payload field, the processing unit of the slave device being further configured to generate a first identity information item based on a first stored key and to save it as the first information item in the header field, and the communication unit of the slave device being configured to transmit the first query message thus generated to the master device over the Bluetooth Low Energy connection.

Abstract: The invention relates to a method for determining an occupied region of a first radio device, comprising: —transmitting a signal from the first radio device, —receiving the signal by at least two additional radio devices, —determining, based on a runtime of the signal from the first radio device to the additional radio devices, a surrounding region around each of the additional radio devices in which the first radio device is located, and —determining the occupied region of the first radio device based on an overlapping region which results from an overlapping of all surrounding regions. Alternatively, signals can also be transmitted from the additional radio devices and received by the first radio device. The method can be used to determine whether an automobile key having a radio transmitter is located in a vehicle.

Abstract: A master-slave system for communication over an ultra-wideband radio connection is proposed. The master-slave system comprises at least one slave device and one master device, wherein the slave device and the master device are configured to communicate over the ultra-wideband radio connection. The master device is configured to generate and transmit a request message to the slave device over a first channel of the ultra-wideband radio connection. The slave device is configured to receive the request message over the first channel of the ultra-wideband radio connection, generate at least one response message based on the request message, and transmit the at least one response message to the master device over the first channel of the ultra-wideband radio connection, and the master device is configured to receive the at least one response message.

Abstract: An ATA (Advanced Technology Attachment) controller is provided that comprises at least one parallel port for connecting to at least one ATA compliant storage device, and at least one serial port for connecting to at least one SATA (Serial ATA) compliant storage device. Further, there is a port switching unit provided for switching to at least one of the parallel and serial ports to enable data transfer to and/or from a storage device connected to the port. This enables a software driven reconfiguration making it possible to switch between a mode where the controller behaves like a conventional ATA controller, and a mode where the controller behaves like a conventional SATA controller. A significant amount of hardware may be reused.

Abstract: An on-chip event timer apparatus including a hardware timer and a debug interface. The hardware timer includes at least an up-counter for counting clocks of a clock signal, a match register for storing a programmable count value, and a comparator for monitoring whether the up-counter's count value matches the count value of the match register. The debug interface includes enable control unit for enabling the up-counter's operation based on a pre-defined relationship between a state of an enabled signal supplied to said up-counter and an internal state of the hardware timer. Additionally, the debug interface may comprise a clock divider connected to the enable control unit to reduce the clock's frequency in accordance with a pre-programmed divider value. Based on the received clock with the reduced clock frequency, the enable control unit adapts the up-counter's processing speed to the reduced clock frequency.

Abstract: An on-chip event timer apparatus including a hardware timer and a debug interface. The hardware timer includes at least an up-counter for counting clocks of a clock signal, a match register for storing a programmable count value, and a comparator for monitoring whether the up-counter's count value matches the count value of the match register. The debug interface includes enable control unit for enabling the up-counter's operation based on a pre-defined relationship between a state of an enabled signal supplied to said up-counter and an internal state of the hardware timer. Additionally, the debug interface may comprise a clock divider connected to the enable control unit to reduce the clock's frequency in accordance with a pre-programmed divider value. Based on the received clock with the reduced clock frequency, the enable control unit adapts the up-counter's processing speed to the reduced clock frequency.