Abstract: Embodiments of the present invention provide systems and methods for synchronous independent channel access in a wireless network. The synchronous independent channel access can be performed by a wireless station having multiple transceivers for simultaneous communication over multiple wireless bands. A wireless station can connect wirelessly to a wireless access point to access a first primary wireless band during a transmission opportunity, and can use early access on a second primary wireless band without receiving a transmission opportunity. The transmission and reception of data frames over the different primary channels are synchronized to prevent or mitigate inter-channel interference. According to some embodiments, the channels are synchronized using back-off procedures and/or padding to align the ending time of transmitted and received data frames, for example.

Abstract: A base station receives channel state information from a wireless device. The base station transmits to the wireless device one or more data packets on a data channel employing a first precoding matrix identifier. The base station transmits one or more control packets on a control channel to the wireless device employing a second precoding matrix.

Abstract: An electronic device may include wireless circuitry with a baseband processor, a digital transmitter, a digital-to-analog-converter (DAC), and an antenna. The baseband processor may produce baseband signals. The digital transmitter may generate self-interference-compensated signals based on the baseband signals. The DAC may generate radio-frequency signals for transmission by the antenna based on the self-interference-compensated signals and square-wave local oscillator waveforms. The digital transmitter may include a self-interference canceller that generates the self-interference-compensated signals. The self-interference-compensated signals may mitigate the creation of self-interferer repetition replicas that land on the carrier frequency of the radio-frequency signals. This may allow the radio-frequency signals to be free from error vector magnitude degradation and spectral regrowth that would otherwise be produced due to self-interference in the radio-frequency signals output by the DAC.

Abstract: A reference signal (RS) transmission system to transmit a channel state information (CSI) RS for extraction of CSI to a relay and a macro terminal is disclosed. The base station transmits information on a sub frame containing the CSI RS to the relay or the macro terminal. The macro terminal and the relay receive the CSI RS using the information on the sub frame. The macro terminal and the relay extract the CSI using the CSI RS and transmit the extracted CSI to the base station.

Abstract: Techniques are disclosed for providing isolation between a pair of partially overlapping antennas. An example electronic device includes a first antenna coupled to a first transceiver through a first signal path comprising a first feed, and a second antenna coupled to a second transceiver through a second signal path comprising a second feed. The first antenna and second antenna partially overlap. The example electronic device also includes compensation circuitry coupled to the first signal path and the second signal path and configured to generate a compensation signal that provides analog cancellation of an interference signal received at the second antenna from the first antenna.

Abstract: A method for a first device to perform wireless communication and a device supporting same. The method may include the steps of: receiving, from a base station, a time division duplex uplink-downlink (TDD UL-DL) configuration including information related to a UL resource; receiving, from the base station, information related to the start of sidelink (SL) symbols, information related to the number of the SL symbols, and a bitmap indicating one or more slots included in an SL resource pool; and determining the SL resource pool.

Abstract: Methods, systems, and devices for wireless communications are described. A first device may receive a first reference signal from a second device and may generate a channel status feedback message based on the first reference signal. The first device may bundle the second reference signal and the channel status feedback message and may transmit the second reference signal and the channel status feedback to the second device. The first device may initiate a data transfer with the second device based on transmitting the second reference signal and the channel status feedback message.

Abstract: An efficiently-transformed digital self-interference canceller, preferably including an FD transformer, a TD transformer, a channel estimator, a composer, and a controller. The canceller can optionally include a channel memory, a predictor, and/or an extender. A method for digital self-interference cancelation, preferably including receiving inputs, transforming the inputs, generating outputs based on the transformed inputs, transforming the outputs, and/or generating a cancellation signal based on the outputs.

Abstract: A method includes generating a payload container information element comprising two or more payload entries at user equipment in a communication system, and sending the payload container information element from the user equipment to at least one network element in the communication system. Another method includes receiving a payload container information element comprising two or more payload entries at a network function in a communication system from user equipment in the communication system, and decoding the two or more payload entries of the payload container information element into two or more individual payloads at the network function.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first wireless communication device (WCD) may transmit, to a second WCD, information for selecting transmission or reception directions for a first beam and a second beam for communications between the first WCD and the second WCD using a full duplex operation. The WCD may receive an indication to use, for the full duplex operation of the first WCD, the first beam to receive communications and the second beam to transmit communications. Numerous other aspects are provided.

Abstract: Provided are a wireless communication method and device. The method includes: a network device sending first indication information, wherein the first indication information is used for indicating the format of a first downlink control channel, and the first downlink control channel is used for carrying hybrid automatic repeat request (HARQ) feedback information about a physical uplink shared channel (PUSCH) of at least one terminal device; and the network device sending the first downlink control channel having the format.

Abstract: A same-aperture any-frequency simultaneously transmit and receive (STAR) system includes a signal connector having a first port electrically coupled to an antenna, a second port electrically coupled to a transmit signal path, and a third port electrically coupled to receive signal path. The signal connector passes a transmit signal in the transmit signal path to the antenna and a receive signal in the receive signal path. A signal isolator is positioned in the transmit signal path to remove a residual portion of the receive signal from transmit signal path. An output of the signal isolator provides a portion of the transmit signal with the residual portion of the receive signal removed. A signal differencing device having a first input electrically coupled to the output of the signal isolator and a second input electrically coupled to the third port of the signal connector subtracts a portion of the transmit signal in the receive signal path thereby providing a more accurate receive signal.

Abstract: Techniques are presented to improve the accuracy of and reduce the time required for calibration of an in-phase/quadrature (I/Q) transmission circuit. A measurement receiver measures the I/Q mismatch, where an RF phase shift is introduced to distinguish between the transmitter and measurement receiver I/Q mismatches. Rather than assuming an amount of introduced phase shift, a measurement is used to estimate the phase shift. This phase estimate is then used to determine and correct the I/Q mismatch in the transmitter and measurement receiver. An iterative process can be used to improve the I/Q correction factors. Using simple signal processing to measure the phase shift during calibration and to perform the image calibration calculations, the phase shifter requirements can be significantly relaxed, resulting in faster design time and reduced design area/cost. This approach results in reduced calibration time, thus contributing to reduced factory production time and enabling faster live mode image calibration.

Abstract: Embodiments of the present disclosure describe methods and apparatuses for beam-specific power control.

Abstract: A full-duplex User Terminal Panel (UTP) including one or more User Terminal Modules (UTM) having a plurality of Tx antenna elements. Each of the Tx antenna elements spaced apart from one another by a distance dTx. The full-duplex UTP further includes a plurality of Rx antenna elements. Each of the Rx antenna elements are spaced apart from one another by a distance dRx. Furthermore, the Tx antenna elements may be spaced according to a Tx lattice dTx, such that the Tx lattice dTx spacing arrangement provides grating lobe-free scanning in an elevation plane at a Tx frequency range. The Rx antenna elements are spaced according to an Rx lattice dRx, such that the Rx lattice dRx spacing arrangement provides grating lobe-free scanning in an elevation plane at a Rx frequency range.

Abstract: A method and device for indicating a transmission direction are provided. The method includes: determining a detection mode for detecting a transmission direction of each of the at least one bandwidth part; detecting transmission direction indication information about a bandwidth part according to the detection mode; and determining the transmission direction of the bandwidth part according to the detected transmission direction indication information. In the present disclosure, a terminal can accurately know a transmission direction of each bandwidth part, thereby reducing the detection cost of the terminal.

Abstract: A method for performing self-interference cancellation by a terminal may comprise the steps of: receiving RS configuration information for phase estimation of self-interference from a base station; when the terminal operates, with a distributed antenna structure, in a full duplex radio (FDR) mode or operates in a space division duplex (SDD) mode between panels, transmitting an RS on the basis of the RS configuration information; and performing phase estimation for self-interference between the panels on the basis of the RS. The terminal is capable of communicating with at least one of another terminal, a terminal related to an autonomous driving vehicle, a base station or a network.

Abstract: A mobile terminal and a method for expanding a bandwidth of a B41 frequency band in LTE are disclosed. The mobile includes a multimode multiband power amplifier, a duplexer, a first surface acoustic wave (SAW) filter, a selection module, and a radio frequency transmission module. When the multimode multiband power amplifier identifies that the initial signal is a signal in the B41 frequency band, the multimode multiband power amplifier determines a frequency band range of the signal in the B41 frequency band and outputs a transmitting signal in the B41 frequency band.

Abstract: Methods, systems, and devices for wireless communications are described for implementation of higher rank transmissions (e.g., higher rank line of sight (LOS) schemes) over a given beam direction associated with a selected transmission configuration indicator (TCI) state. According to some aspects, expanded antenna arrays, spatial separation (e.g., distance) between antenna elements, lower carrier frequencies (e.g., associated with frequency range 4 (FR4) systems), etc. may be leveraged to communicate uncorrelated signals (e.g., independent streams across spatial layers) for higher rank transmissions using a given TCI state (e.g., using a single beam direction). Various aspects of the described techniques may provide for higher rank directional communications by a user equipment (UE) (e.g., via uncorrelation in a single UE), higher rank directional communications by select UEs (e.g., via uncorrelation across specific UEs), base station antenna selection for uncorrelation at multiple served UEs, etc.

Abstract: Disclosed is user equipment for communicating with a base station via a radio frame. The user equipment includes a receiving unit that receives an index relating to a RACH configuration table indicating allocation of RACH resources in the radio frame from the base station; a control unit that identifies an available RACH resource based on a plurality of different RACH configuration tables and the index; and a transmitting unit that transmits a preamble to the base station using the identified available RACH resource.

Abstract: Different techniques are presented for achieving enhanced linearity of digital transmitters. In one aspect, each unit cell of a switched capacitor circuit includes a capacitor electrically coupled via a switch to one of a drive voltage or a reference voltage, and the switch is implemented by two transistors coupled in series. The two transistors are transitioned between on and off states by control signals applied to control terminals of the two transistors, such that the control signals are pulse waves with edges temporally shifted in relation to each other and thereby reducing switching resistance during switch transitions.

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may establish communications with a first base station and a second base station in accordance with a dual connectivity configuration. The UE may determine a second uplink timing gap for communications with the second base station and determine, based on being in the dual connectivity configuration, a first uplink timing gap for communications with the first base station. The first uplink timing gap may be determined to be greater than the second uplink timing gap. The UE may communicate with the first base station based on the first uplink timing gap. The UE may also prioritize uplink transmit power determinations for the first base station over uplink transmit power determinations for the second base station.

Abstract: Provided are a communication apparatus and a communication method that enable ACK/NACK (ACKnowledgement/Negative-ACKnowledgement) transmission without complicated connection settings, to thereby realize high-efficiency and high-quality multicast communication. The communication apparatus includes a communication unit configured to transmit and receive a signal and a control unit configured to control the transmission and reception of the signal. The control unit controls transmission of an induction signal to one or more destination stations to each of which a signal has been transmitted, the induction signal inducing transmission of an ACK/NACK signal with respect to the transmitted signal. The induction signal contains information specifying, of a plurality of continuous frames, frames that are ACK/NACK targets and information associated with a plurality of candidate regions with respect to which the ACK/NACK signal is transmittable.

Abstract: A radio-frequency module supports carrier aggregation in which radio-frequency signals in a plurality of frequency ranges are simultaneously transmitted, simultaneously received, or simultaneously transmitted and received. The radio-frequency module includes a plurality of first filters, a plurality of second filters, a switch coupled to an antenna element and the plurality of first filters and configured to control connection and disconnection between the antenna element and each of the plurality of first filters, and a switch coupled to the antenna element and the plurality of second filters and configured to control connection and disconnection between the antenna element and each of the plurality of second filters. No combination of filters selected from both the plurality of first filters and the plurality of second filters are used for carrier aggregation.

Abstract: The present disclosure describes techniques and systems for location-based resource scheduling, to reduce or eliminate receiving transmissions, by the base station, over one or more communication resources allocated for another communication. In some aspects, a user device (102) establishes a wireless connection (106) with a base station (104). The user device (102) receives, from the base station (104), a propagation delay message (304). The propagation delay message (304) schedules a delay for a transmission of the user device (102). The delay is based on a location of the user device (1020) being outside of a standard distance (614) from the base station (104). The user device (102) then transmits, to the base station (104), the transmission according to the propagation delay message (304).

Abstract: The present disclosure provides an omnidirectional beamforming method. In the omnidirectional beamforming method, a space-time block coding is performed on a data stream to be sent to obtain the coded data stream. Omnidirectional beamforming matrices corresponding to a uniform rectangular antenna array are constructed. The beamforming is performed on the coded data stream through the omnidirectional beamforming matrices, to generate a signal to be sent of the uniform rectangular antenna array.

Abstract: Methods, systems, and devices for wireless communications are described that support techniques for wireless communications using preconfigured uplink resources. Generally, the described techniques provide for enhancement of communication features including frequency hopping, an uplink control channel, coverage enhancement, timing advance, uplink power control, reconfiguration, a downlink control channel, a downlink data channel, retransmissions, or subcarrier spacing for a UE in idle mode. The UE may receive an uplink resource configuration for uplink communications in idle mode, the uplink resource configuration comprising an indicator associated with allocated resources for the uplink communications in idle mode and a set of parameters. The UE may transmit, while in idle mode, a first uplink transmission associated with a transport block on the allocated resources and according to one or more of the parameters, and monitor for a response to the first uplink transmission.

Abstract: A method for providing application data of at least one application executable on a control unit of a vehicle. The control unit includes components for running an operating system including a virtual memory management. In the method, an application address space of a first virtual memory is initially read out, the application address space being assigned to a process of the application and representing an area of a physical memory of the control unit occupied by the application data. The application address space is mapped in a further step into a virtual address space, which is assigned to a process of a communication application for exchanging data via a communication interface to a control unit-external evaluation unit. The application data are therefore retrievable via the communication interface.

Abstract: A front-end module includes: a switch module that performs CA for bands A and C and performs non-CA for band B, which is located between these two bands, and that has a common terminal and selection terminals; a duplexer that is connected to the selection terminal and allows band A to pass therethrough; a duplexer that is connected to the selection terminal and allows band C to pass therethrough; an impedance matching network that is connected to the selection terminal; and a reception filter that is connected to the impedance matching network and allows band B to pass therethrough. During CA for bands A and C, a first circuit, which includes the impedance matching network and the reception filter, forms an attenuation pole in the frequency band of band C in the transmission characteristic of a path connecting the duplexer, the common terminal, and the duplexer to each other.

Abstract: A method, a device, and a non-transitory storage medium provide a radio access technology selection (RAT) service. The RAT selection service includes using traffic pattern information, coverage level information, and load information as a basis to select a RAT of use for an end device that has multi-RAT capabilities. The RAT selection service may select power preservation configurations for each RAT of the end device.

Abstract: An equipment comprising an array of radio antennas and a switching device placed as a cutoff between the antennas and the associated reception channels, the switching device comprising a first so-called operational operating mode wherein each input interface is then connected directly to a different output interface so as to connect each antenna with at least the associated reception channel thereof, and a second so-called calibration operating mode, wherein an input interface corresponding to a predetermined antenna is then connected to all the output interfaces so as to transmit the electrical signal coming from the predetermined antenna to all the reception channels, the equipment being adapted for implementing a method for autocalibration of the reception channels when the switching device is in the second operating mode.

Abstract: Example implementations relate to device management. In some examples, a system may include a computing device comprising executable instructions to authenticate the computing device to a first wireless network, implementing a first level of security, while in an active state. A system may include a computing device comprising executable instructions to disconnect from the first wireless network responsive to entering a sleep state. A system may include a computing device comprising executable instructions to provide, from a basic input/output system (BIOS) of the computing device, a wireless parameter for a second wireless network implementing a second level of security. A system may include a computing device comprising executable instructions to connect to the second wireless network while in the sleep state.

Abstract: Long-term evolution assisted new radio initial access and mobility for 5G or other next generation networks are provided herein. A method can include transmitting, by a first network device of a wireless network and comprising a processor, a first timing synchronization signal and first acquisition information of the first network device to a mobile device. In response to the transmitting and based on a transmission received from the mobile device, a connection between the mobile device and a radio resource control of the wireless network can be facilitated. In addition, in response to the mobile device determining the location of the second timing synchronization signal based on the data indicative of the location of the second timing synchronization signal, the second network device can transmit, to the mobile device, the second timing synchronization signal and second acquisition information of the second network device.

Abstract: The present disclosure provides an RF front-end circuit and a circuit board thereof, a terminal. The RF front-end circuit may include an RF transceiver and a first RF circuit, a second RF circuit, a third RF circuit and a fourth RF circuit connecting to the RF transceiver respectively. The first RF circuit may be connected to a first antenna. The second RF circuit may be connected to a second antenna. The third RF circuit may be connected to a third antenna. The fourth RF circuit may be connected to a fourth antenna. The first RF circuit, the second RF circuit, the third RF circuit and the fourth RF circuit may be independent from each other.

Abstract: This invention presents embodiments of a coupler array to couple the RF signals between the antenna array of a MIMO base station and a MIMO RF channel emulator. The embodiments enable testing of a large scale MIMO wireless communication system without the need of connecting a large number of RF cables to the antenna ports of the MIMO base station.

Abstract: An RF communication system supporting both TDD and FDD and including an FDD duplexer coupled to an antenna; a first pair of FDD/TDD switches each coupled to the duplexer and to a Tx/Rx switch via a sub-band switch; and a second pair of FDD/TDD switches coupled to the Tx/Rx switch including a first FDD/TDD switch coupled to a baseband processor via an amplifier and down converter and a second FDD/TDD switch coupled to a baseband processor via an amplifier and up converter.

Abstract: Embodiments disclosed herein relate to isolating a receiver circuit of an electronic device from a transmission signal and leakage of the transmission signal. To do so, an isolation circuit is disposed between the receiver circuit and a transmission circuit. The isolation circuit may include multiple variable impedance devices and one or more antennas. The impedances of the variable impedance devices may be balanced such that a signal at a particular frequency or within a particular frequency band can pass through or is blocked by the isolation circuit. The isolation circuit may include one or more double balanced duplexers to achieve the improved isolation. The isolation circuit may also increase bandwidth available for wireless communications of the electronic device.

Abstract: In one aspect, one or more network nodes configured to manage bitrates for dedicated radio bearers (DRBs) allocate (502) respective shares of a pre-determined aggregated maximum bit rate (AMBR) to a plurality of DRBs or to a plurality of sets of DRBs or to a combination of DRBs and sets of DRBs. The one or more network nodes also enforce (504) maximum bit rates on the DRBs and/or sets of DRBs, according to the allocated shares.

Abstract: Various examples of the present invention relate to an apparatus and a method for controlling a connection and an operation of an antenna in an electronic device.

Abstract: Embodiments herein provide a transceiver system 1000a-1000f for full-duplex communication. The transceiver system 1000a-1000f includes an electrical balance based duplexer (EBD) 100 coupled with at least one transceiver 200a and 200b and at least one antenna 300a and 300b. The at least one antenna 300a and 300b is configured to transmit first signals and the at least one antennas 300a and 300b is configured to receive second signals using at least one circulators. The EBD 100 is configured to provide an isolation between the transmitting signals and the receiving signals in a same channel full duplex (SCFD) front-end circuit using the at least one circulators.

Abstract: Aspects of the present disclosure provide techniques and apparatus for performing narrowband physical random access channel (PRACH) procedures in large cells. For example, aspects of the present disclosure provide techniques for narrowband PRACH procedures (e.g., narrowband internet of things (NB-IoT)) to accommodate larger RTTs (e.g., up to 100 km). In some cases, supporting larger RTTs may involve a base station altering its PRACH processing by performing a two-step process of, first, obtaining a frequency domain phase offset based on an uplink signal from a UE, which provides a fractional delay and, second, performing a time domain correlation for different timing hypotheses to determine a timing offset based on the uplink signal. Supporting larger RTTs may also involve enabling a new NPRACH format that may coexist with legacy 3.75 kHz resources.

Abstract: A communication apparatus in a communication system including a plurality of communication apparatuses, the communication apparatus includes a controller configured to, in a wireless communication with another communication apparatus, considering with power information related to a power amount of a signal to be transmitted from the communication apparatus to candidate communication apparatuses that are candidates for performing the wireless communication, calculate a transmission power amount for the candidate communication apparatuses, and perform a control such that a candidate communication apparatus for which the calculated transmission power amount is the smallest becomes the other communication apparatus for performing the wireless communication, and a transmitter configured to transmit a signal to the other communication apparatus considering with the power information.

Abstract: An example technique performed by a client on a device includes: detecting a mobility state of the device in a presence of a wireless network; determining, based at least in part on the mobility state, that the wireless network is a preferred wireless network for the device; in response to determining that the wireless network is a preferred wireless network, elevating a priority of the wireless network in a set of wireless networks to which the device is connectable; and connecting the device to the wireless network based, at least in part, on the priority of the wireless network.

Abstract: The present disclosure relates to systems and methods for operating transceiver circuitry to transmit or receive signals on various frequency ranges. To do so, a transmitter or a receiver of the transceiver circuitry is selectively coupled to or uncoupled from an antenna of the transceiver circuitry. Additionally, radio frequency filters may be individually or collectively coupled to and/or uncoupled from the antenna to filter different frequencies in the transmitting or receiving signals.

Abstract: Facilitating hybrid automatic repeat request reliability improvement for advanced networks (e.g., 4G, 5G, 6G, and beyond) is provided herein. Operations of a system can comprise obtaining information related to a capability of a user equipment device and configuring the user equipment device with respect to control channel resources and a number of repetitions per slot based on the capability of the user equipment device. The operations can also comprise indicating the control channel resources and the number of repetitions per slot to the user equipment device via a control channel. Further, the operations can comprise detecting an acknowledgement, from the user equipment device, via an uplink control channel that comprises the control channel resources.

Abstract: A high-frequency front-end module includes transmission amplifier circuits, a transmission filter that is connected between a common terminal and the transmission amplifier circuit and has a transmission band of a band A as a pass band, a reception filter that is connected to the common terminal and has a reception band of a predetermined communication band as a pass band, in which a frequency of an intermodulation distortion generated by a transmission signal from the transmission amplifier circuit and a transmission signal from the transmission amplifier circuit overlaps the pass band, and a band elimination filter that is disposed in a signal path connecting an output terminal of the transmission amplifier circuit and the transmission filter, and has a transmission band of the band A as a pass band and a transmission band of a band B as an attenuation band.

Abstract: The present invention relates to a wireless communication system, and specifically, to a method and a device therefor, the method comprising the steps of: repeatedly receiving a PDCCH including scheduling information, wherein the scheduling information includes time delay information; and repeatedly transmitting a PUSCH indicated by the scheduling information, after a time point indicated by the time delay information from the time point when the repeated receiving of the PDCCH ends, wherein a time resource in a time region includes a fixed DL time unit having a transmission direction fixed to a DL, and a time resource includes a fixed uplink (UL) time unit having a transmission direction fixed to a UL, and a floating time unit having a variable transmission direction, and the time point indicated by the time delay information is calculated on the basis of the fixed UL time unit.

Abstract: An antenna resource scheduling method and device for improving radiation efficiency of an antenna in a sideband area of an operating band by obtaining an operating frequency of an antenna, where the operating frequency is a frequency currently used by the device during communication; determining an operating band based on the operating frequency, where the operating band is a band to which the operating frequency belongs; determining a target impedance parameter based on the operating band and the operating frequency; and adjusting an impedance parameter of an impedance circuit to the target impedance parameter.

Abstract: The present disclosure provides an acoustic output apparatus. The acoustic output apparatus includes at least one low-frequency acoustic driver that outputs sounds from at least two first sound guiding holes, at least one high-frequency acoustic driver that outputs sounds from at least two second sound guiding holes, and a support component. The support component may be configured to support the at least one high-frequency acoustic driver and the at least one low-frequency acoustic driver, and cause the at least two first sound guiding holes and the at least two second sound guiding holes to locate away from a position of an ear of a user.

Abstract: Disclosed is the radio (wireless) communication system providing a radio communication service and the terminal, and more particularly, to a method of an uplink HARQ (Hybrid Automatic Repeat reQuest) operation at an expiry of time alignment timer in an Evolved Universal Mobile Telecommunications System (E-UMTS) evolved from the Universal Mobile Telecommunications System (UMTS) or a Long Term Evolution (LTE) system.