Abstract: A wireless communication apparatus that allocates radio resources is a base station or a mobile station that transmits a data series on a frequency channel in a frequency hopping pattern corresponding to a radio resource time slot. The apparatus includes a transmission quality measurement unit that measures radio waves in a frequency band used in the transmission of the data series and evaluates transmission quality, and the radio resources including a reserved resource and spare resources, a resource allocation unit that allocates, to the mobile station lower than or equal to a threshold value in transmission quality of a frequency channel used in a reserved resource time slot, a time slot that improves frequency channel transmission quality, of spare resource time slots.

Abstract: A wireless tag communication device includes an antenna configured to transmit a carrier wave and receive a response wave output from a wireless tag with respect to the carrier wave and to specify a position of the wireless tag to be searched based on a radio wave intensity of the response wave received by the antenna. The device includes: a radio wave controller configured to switch the carrier wave between a first and second carrier wave to be transmitted in a first and second polarization direction respectively; and a comparator configured to compare a first and second radio wave intensity of a first and second response wave respectively output from the wireless tag with respect to the first and second carrier waves respectively, and the radio wave controller switches the carrier wave between the first carrier wave and the second carrier wave based on a comparison result of the comparator.

Abstract: Methods, systems, and apparatuses for wireless communication are described. In some wireless systems (e.g., new radio (NR) systems), a system may employ fixed or variable length uplink burst regions (e.g., in an uplink-centric slot). The base station may semi-statically or dynamically configure a user equipment (UE) or group of UEs for uplink control channel transmissions within an uplink burst region. In semi-static configuration, the UE may determine the uplink control channel transmission based on values transmitted or indicated via higher-layer signaling or based on default values. In dynamic configuration, the UE may receive an indication of actual resources used by the base station in a physical layer message. The UE may transmit using an uplink control channel transmission based on the indication. In some cases, the base station may allocate code division multiplexing (CDM) groups based on which UEs are semi-statically configured and which are dynamically configured.

Abstract: An electronic device and a method for spectral model explanation are provided. The method includes: obtaining first labeled spectral data; storing a plurality of pipelines, selecting a selected pipeline from the pipelines, and generating a first measurement result corresponding to the first labeled spectral data according to the selected pipeline; and determining an important wavelength range corresponding to the selected pipeline according to the first measurement result.

Abstract: According to some embodiments, a method performed by a wireless device comprises receiving a wireless signal Rk over all subcarriers allocated to the wireless device. The signal Rk comprises a phase tracking reference signal (PT-RS) on a subset of subcarriers allocated to the wireless device and the subset comprises at least one non-contiguous subcarrier. The method further comprises computing a de-inter-carrier interference (ICI) filter based on the PT-RS and a channel estimate using a convolutional matrix CR of the received signal Rk and applying the de-ICI filter to the received signal Rk to generate a de-ICI filtered signal.

Abstract: A multi-band transmission method implemented by a receive end, where the method includes: receiving data packets in parallel from a transmit end using M frequency bands, where the data packets belong to a same traffic stream; receiving a BAR from the transmit end, where the BAR carries an SSN and requests a receiving state of a data packet from the transmit end on the mth frequency band; marking an mth state for an unreceived data packet whose SN is before the SSN; marking one or more unreceived data packets with a discarded state when determining the one or more unreceived data packets are marked with a first state, a second state, . . . , and an Mth state; determining whether there are data packets with consecutive SNs; and if yes, submitting a data packet that is in the received state and in the data packets with the consecutive SNs.

Abstract: Provided are a reference signal sending method and device, a reference signal receiving method and device and a storage medium. The reference signal sending method includes: determining that frequency domain positions occupied by a reference signal satisfy a predetermined condition, where the predetermined condition includes: discontinuous frequency bands existing among the frequency domain positions occupied by the reference signal, and a union of the discontinuous frequency bands occupied by the reference signal is smaller than a frequency hopping bandwidth; and sending the reference signal at the determined frequency domain positions; wherein the frequency hopping bandwidth is a bandwidth determined according to two frequency domain positions with a largest distance among the frequency domain positions occupied by the reference signal or a predetermined bandwidth acquired by receiving a first signaling message; and wherein each frequency band comprises a physical resource block (PRB).

Abstract: A method for transmitting an SRS by a user equipment may comprise the steps of: transmitting, to a base station, user equipment capability information including information on a frequency bandwidth where SRS frequency hopping for the user equipment is possible; receiving, from the base station, first information on an SRS bandwidth configuration and second information on the start point of an SRS frequency for transmission of an SRS; and transmitting the SRS to the base station on the basis of the first information and the second information, wherein the frequency bandwidth where SRS frequency hopping for the user equipment is possible corresponds to a partial frequency bandwidth within a bandwidth part (BWP) configured for transmission of the SRS. The UE is capable of communicating with at least one of another UE, a UE related to an autonomous driving vehicle, a base station or a network.

Abstract: Methods, apparatus, and processor-readable storage media for generating a frequency hopping arrangement are provided herein. An example computer-implemented method includes calculating a number of useable frequency channels between a starting frequency channel and a stopping frequency channel for a frequency hopping arrangement for a communication session; calculating a frequency channel step value based at least in part on a predetermined required minimum number of frequency channels for the frequency hopping arrangement; selecting frequency channel values to be used in the communication session by iterating through frequency channel values for the useable frequency channels between the starting frequency channel and the stopping frequency channel at intervals of a random frequency channel selection offset value; and establishing the frequency hopping arrangement based at least in part on the selected frequency channel values.

Abstract: Discontinuous access to unlicensed spectrum is facilitated in a new radio access environment. According to an embodiment, a system can comprise performing a scanning procedure that determines whether a first subband and a second subband is available for transmission. The system can further facilitate determining whether the first subband and the second subband are adjacent, wherein a first channel formed at the first subband comprising a first guard band and a second channel formed at the second subband comprising a second guard band that is adjacent to the first guard band. The system can further facilitate in response to determining that the first subband and the second subband are adjacent and available for transmission, eliminating the first guard band and the second guard band.

Abstract: A device can have collocated communication circuits and operate in a parallel mode if selected first wireless channels are above a certain quality, and operate in a time division (TD) mode if the selected first wireless channels are below a certain quality. The parallel mode can include using first channels for a first protocol that do not overlap a second channel used by a second protocol. The TD mode can include first time periods in which a first protocol uses first channels that overlap the second channel, while the second protocol is inactive, and second time periods, in which the first protocol is inactive and the second protocol is active.

Abstract: Techniques are provided for asset location using backscatter communication. A methodology according to an embodiment includes receiving a signal, generated by a tag associated with an asset in response to a broadcast signal. The broadcast signal comprising a base code sequence, and the received signal comprising the broadcast signal modulated by a tag code sequence and shifted in frequency by a frequency offset. The methodology further includes translating the received signal by the frequency offset to generate a translated received signal, demodulating the translated received signal to remove the tag code sequence modulation to generate a demodulated received signal, cross-correlating the base code sequence with the demodulated received signal to generate a correlation signal, and determining a range to the asset based on a time delay associated with a peak of the correlation signal. The tag may be located based on the range and an estimated direction to the tag.

Abstract: A method and system for minimizing the control overhead in a multi-carrier wireless communication network that utilizes a time-frequency resource is disclosed. In some embodiments, one or more zones in the time-frequency resource are designated for particular applications, such as a zone dedicated for voice-over-IP (VoIP) applications. By grouping applications of a similar type together within a zone, a reduction in the number of bits necessary for mapping a packet stream to a portion of the time-frequency resource can be achieved. In some embodiments, modular coding schemes associated with the packet streams may be selected that further reduce the amount of necessary control information. In some embodiments, packets may be classified for transmission in accordance with application type, QoS parameters, and other properties. In some embodiments, improved control messages may be constructed to facilitate the control process and minimize associated overhead.

Abstract: A method and system for minimizing the control overhead in a multi-carrier wireless communication network that utilizes a time-frequency resource is disclosed. In some embodiments, one or more zones in the time-frequency resource are designated for particular applications, such as a zone dedicated for voice-over-IP (VoIP) applications. By grouping applications of a similar type together within a zone, a reduction in the number of bits necessary for mapping a packet stream to a portion of the time-frequency resource can be achieved. In some embodiments, modular coding schemes associated with the packet streams may be selected that further reduce the amount of necessary control information. In some embodiments, packets may be classified for transmission in accordance with application type, QoS parameters, and other properties. In some embodiments, improved control messages may be constructed to facilitate the control process and minimize associated overhead.

Abstract: The present application provides a control method, an apparatus, a power system, and an electric vehicle, relating to the field of electric vehicles. The method includes: obtaining a battery cell temperature of a power battery, and sending a first control signal to an inverter when the battery cell temperature meets a preset power battery heating condition, where the first control signal is configured to control the inverter to convert a current provided by the power battery into an alternating current with a randomly changing frequency, and the alternating current with a randomly changing frequency is configured to supply power to a permanent magnet motor. New frequency components may be introduced to evenly distribute originally concentrated radial electromagnetic forces to an entire stator, thereby reducing vibration noises during the heating process of the power battery.

Abstract: Concepts and technologies are disclosed herein for a sensor web for Internet of Things (“IoT”) devices. According to one aspect disclosed herein, a system can monitor a health status of an IoT sensor device of a plurality of IoT sensor devices. The system can determine that the health status of the IoT sensor device indicates a sensor malfunction experienced by the IoT sensor device, and in response, can generate and send an alert to a forensic analytics module. The alert can identify the sensor malfunction. In response to the alert, the forensic analytics module can determine a last known location of the IoT sensor device. The system can obtain a set of satellite images of the last known location of the IoT sensor device, and can utilize the set of satellite images of the last known location to determine a cause of the sensor malfunction.

Abstract: In embodiments of identification and suppression of network beacons, a wireless device scans for wireless network beacons and receives a beacon frame from a wireless network beacon. The wireless device identifies the beacon frame is from a network beacon of non-interest and suppresses the network beacon and terminates reception and processing of the beacon frame.

Abstract: Computing systems and methods for facilitating consumer transactions in retail and other establishments include communication interfaces adapted to couple a computing system to a plurality of third party phones or other mobile electronic devices, storage components adapted to store user information, participating merchant information, or any combination thereof, and processors in communication with the communication interfaces and storage components. The processors are adapted to facilitate the automatic wireless checkins of third party users of the third party phones or other mobile electronic devices at participating merchants. Such automatic wireless checkins take place when the third party phones or mobile electronic devices are simply present at the participating merchants, without any affirmative activity by the users at the participating merchants.

Abstract: A first mobile terminal requests a device to transmit data, on the basis of a processing request transmitted from a management server. The device transmits the requested data to the first mobile terminal. The first mobile terminal generates processed data by using the data received from the device. The first mobile terminal assigns an identifier to the processed data. The first mobile terminal transmits the processed data in association with the identifier to the management server. The first mobile terminal transmits an association relationship between the identifier and the data used for generating the processed data to the device. The device stores the identifier in association with the transmitted data. A second mobile terminal transmits to the device an identifier transmitted from the management server as an identifier associated with data to be deleted. The device identifies data associated with the identifier received from the second mobile terminal.

Abstract: A composite wireless device including a WLAN device and a BT device. The composite wireless device includes a wireless-channel control unit that determines usable FH channels that can be used for frequency hopping of the BT device, based on communication quality information of the WLAN channel, and notifies the BT device of the usable frequency bands, and a BT-communication control unit that acquires communication quality information of an extended frequency band, which is a frequency band other than the usable frequency bands, as extended communication quality information. The wireless-channel control unit adds the FH channels in the WLAN channel, which are determined as being unused based on the extended communication quality information, as the usable FH channels.

Abstract: A wireless product for wireless communication is constructed for spread spectrum operation within a required channel bandwidth where an RF signal for transmission in the channel is divided into sub-channels, each of which is less than the minimum channel bandwidth permitted by FCC regulations in order to realize improved transmission characteristics and greater flexibility in transmission timing and synchronization. The wireless product includes a controller for controlling system operation. During operation, the RF signal portion is less than the minimum channel bandwidth required by said regulations thus dividing the channel bandwidth to form N sub-channels, and setting the bandwidth of the RF signal to be substantially equal to the sub-channel bandwidth. The RF signal portion being transmitted in each of the N sub-channels.

Abstract: In one embodiment, a rendezvous request message is generated (e.g., by a sender) that specifies a channel C and a rendezvous time T for which a distributed message is to be transmitted in a frequency-hopping computer network. The rendezvous request message is then transmitted on one or more channels used in the computer network based on reaching a plurality of intended recipients of the distributed message with the rendezvous request message prior to rendezvous time T. Accordingly, the distributed message is then transmitted on channel C at rendezvous time T. In another embodiment, a device receives a rendezvous request message, and in response to determining to honor the rendezvous request message, listens for the distributed message on channel C at rendezvous time T.

Abstract: A frequency hopping receiver circuit has a frequency converter (12) and a hopping control circuit (14) coupled to the frequency converter (12), and configured to control frequency hopping of the received frequency, by controlling changes in frequency shift applied by the frequency converter (12). The frequency change is applied in combination with a temporary reduction in conversion gain of the frequency converter (12) during the change in frequency shift. The frequency converter may contain a mixer (122), a local oscillator circuit (120) and a controllable amplifier (124) coupled between the input of the frequency converter (12) and the mixer (122) or between the mixer (122) and the output of the frequency converter (12), or between the local oscillator circuit (120) and the local oscillator input of the mixer (122).

Abstract: In a closed-loop TPC for a channel using a wireless resource, to which frequency hopping is applied, a high quality reception is achieved for all RBs without applying another technique to each RB. This transmission power control method, in a mobile communications system that transmits signals by frequency hopping in a plurality of resource blocks, includes a transmission power control method that transmission-power controls a channel in a closed loop using a wireless resource to which frequency hopping is applied, measures a reception channel quality of received signals for each resource block (RB1 and RB2), and transmits a TPC command-bit via a downlink so that the reception quality that is independently measured at each resource block among the resource blocks is made equal to a target reception quality.

Abstract: A frequency hopping signal receiving system comprising: a receiver for extracting discrete-time samples from the signal; a memory connected to the receiver for storing the extracted discrete-time samples from the signal; at least one processor operatively connected to the memory for: determining a state-space vector that captures relevant information to describe the dynamics of the signal; selecting a parameter to represent the probability of hopping associated with the signal; generating particle filters to estimate unknown parameters in the state-space vector based upon the extracted discrete-time samples by generating random particles that approximate the filtering distribution having importance weights; specifying the importance function in closed-form in a convenient mixture representation, which enables drawing particles and updating the importance weights; constructing an estimator to generate hop particles based upon observing at least one sample hop and then evaluating the estimator using a condition

Abstract: An adaptive multi-channel architecture for a wireless network is provided. A frequency hopping sequence generator module is compliant with a frequency hopping spread spectrum (FHSS) communications protocol. The frequency hopping sequence generator module is capable of performing FHSS concurrently on a plurality of communications channels. A frequency replacement module is coupled to the frequency hopping sequence generator module. The frequency replacement module is configured to receive feedback data over a feedback channel and adaptively select a transmission channel from the plurality of communications channels using the feedback data.

Abstract: Multiple applications sharing common resources are arbitrated such that failures resulting from unavailable resources can be avoided. Whenever an application (e.g., a data application) desires to perform an operation (e.g., PPP resynchronization) that requires the use of a shared resource (e.g., an RF receiver), a determination is made as to whether that resource is available. The operation may be delayed while the resource is unavailable. The application may be assigned the resource if it is available or becomes available and may then start the operation. The resource is locked while the operation is pending to avoid assignment to another application. The resource arbitration allows applications to complete their operations without encountering failures due to other applications taking over the resources.

Abstract: A sounding reference signal transmission method which is efficient in an uplink wireless telecommunications system using a multiple antenna technique and sounding reference signal hopping. A terminal using the multiple antenna technique is equipped with a plurality of antennas, and a base station receives the sounding reference signal transmitted from these antennas and estimates the uplink channel state of each antenna. Moreover, the sounding reference signal performs frequency hopping so that the base station determines the channel condition for the entire bandwidth to which data is transmitted in the uplink system. The sounding reference signal is transmitted through an antenna pattern in which the sounding reference signal can be transmitted through the entire data transmission bandwidth of the uplink system for each antenna of the terminal without additional overhead in this environment.