Abstract: Methods and apparatuses for adaptive subcarrier spacing in wireless communication networks are described. For example, the described aspects include transmitting, from the UE to a network entity, a first PRACH transmission with a first subcarrier spacing; determining, by the UE, that the first PRACH transmission to the network entity is not successful; and transmitting, from the UE, a second PRACH transmission with a second subcarrier spacing in response to determining that the first PRACH transmission is not successful, wherein the first subcarrier spacing is different from the second subcarrier spacing.

Abstract: The embodiments described herein are directed at techniques to de-correlate Bluetooth interference seen across WLAN receive antennas/space in a Bluetooth transceiver/WLAN transceiver combination device. A Bluetooth interference whitening technique may be utilized, wherein a whitening matrix is computed based on a leakage signal resulting from a training signal transmitted by the Bluetooth transceiver. The leakage signal may leak in to the WLAN transceiver and a set of attributes is calculated for each frequency the leakage signal is received on. One or more whitening matrixes are calculated based on the set of attributes for each frequency the leakage signal is received on. In response to the WLAN transceiver receiving a signal of interest, an appropriate whitening matrix from the one or more whitening matrixes is selected and is then applied to the received signal of interest to de-correlate any interference generated as a result of the Bluetooth transmission.

Abstract: A method includes collecting data relating to an event, the data including a timing of the event and a location of the event, predicting attendance at the event based on the collected data, predicting network usage based on the predicted attendance of the event, instantiating virtual network resources based on the predicted network usage, collecting post event data relating to actual attendance and network metrics, comparing the post event data with the predicted attendance and predicted network usage and updating a prediction algorithm based on the comparing step.

Abstract: A method of parameter estimation for a multi-input multi-output system based on deep learning is executed. The method includes creating a connection between the base station and a user device entering a coverage of the base station, transmitting real-time channel information from the user device to the base station through the connection, optimizing a parameter for the user device based on the real-time channel information through a deep learning algorithm, transmitting the optimized parameter to the user device, and applying the optimized parameter in a signal detection for the multi-input multi-output system at the user device. The real-time channel information is a channel status of the user device upon the creation of the connection between the base station and the user device. Another method of parameter estimation for a multi-input multi-output system having a base station and a plurality of user devices is also disclosed.

Abstract: A data transmission method, a data transmission apparatus, and a session management device are provided. The data transmission method includes obtaining state information of a UE to which downlink data is destined; selecting, for the UE, a first gateway function entity for transmission of the current downlink data according to the state information of the UE; determining a first data transmission path between the first gateway function entity and a second gateway function entity; and performing the transmission of the downlink data according to the first data transmission path.

Abstract: The invention relates to a method for operating a communication system, the communication system comprising at least two separate transmitting antennas located on Earth and at least two receive antennas located with a distance from Earth, the receive antennas having directional receiving patterns which cover a common region on Earth, the method comprising the following steps: —precoding the symbol sequences before transmission from the transmitting antennas to the receive antennas in order to reduce spatial interference between the symbol sequences, and —simultaneously transmitting symbol sequences from the transmitting antennas to the receive antennas by spatial and frequency multiplexing in a time and phase synchronized fashion, the symbol sequences being transmitted from different transmitting antennas being different from each other but being transmitted on the same frequency.

Abstract: The technology disclosed herein includes an apparatus including an antenna, a plurality of wireless endpoints using the antenna, and a co-ex manager configured to measure an activity level of a wireless endpoint over a predetermined time period, compare the measured activity level of the wireless endpoint with a threshold activity level, and in response to the comparison, change an antenna operating mode of the wireless endpoint.

Abstract: A data frame, a data transmitting method and a data transmitting device are provided. The data frame includes a set number of transmission time intervals each including at least two reference signal channels for transmitting pilot signals. A first transmission time interval of the set number of transmission time intervals further includes a control channel, a primary synchronization signal channel, a secondary synchronization signal channel, a broadcast channel, a shared channel and a guard time interval. Each transmission time interval other than the first transmission time interval further includes a control channel, a discovery signal channel, a shared channel and a guard time interval. A second slot of a last transmission time interval further includes a set number of access signal channels.

Abstract: Embodiments provide a CSI-RS sending method and device, and a base station. The CSI-RS sending method includes: receiving capability indication information of each user equipment UE in a cell; determining N transmission schemes based on the capability indication information; configuring CSI-RS resources to be multiplexed by CSI-RSs corresponding to the N transmission schemes; and sending, to corresponding UE based on each of the N transmission schemes, a CSI-RS that is carried on the CSI-RS resource and that corresponds to the corresponding transmission scheme. It can be learned that according to the technical solutions in the embodiments of this application, when resources are limited, CSI-RSs corresponding to different transmission schemes are sent in a resource multiplexing manner, so that a plurality of transmission schemes can be compatible, and resource utilization can be improved.

Abstract: Certain aspects of the present disclosure provide techniques for qualifying machine learning model-based channel state information (CSI) predictions. An example method generally includes receiving, from a network entity, a channel state information (CSI) prediction model for quantized CSI, calculating CSI based on downlink reference signal measurements, generating a quantized CSI difference value based a quantization of a difference between the calculated CSI and CSI predicted based on a CSI prediction model, and reporting, to the network entity, the calculated CSI and the quantized CSI difference value.

Abstract: A radio system includes a radio voice terminal, a relay server, a command center and a radio network gateway. The radio network gateway includes a communication module in communication with the relay server; a radio voice control module in communication with the first radio voice terminal, receiving a radio voice signal from the first radio voice terminal; and a processing module in communication with the communication module and the radio voice control module, converting the radio voice signal into a digital voice file, executing a voice recognition process to extract at least one keyword from the digital voice file, and transmitting the at least one keyword to the relay server through the communication module.

Abstract: Provided are wireless communication devices and methods. A wireless communication device can comprise: circuitry operative to map at least a first type of reference signals (RSs) onto orthogonal frequency division multiplexing (OFDM) symbol(s) other than the OFDM symbols onto which shortened transmission time intervals (TTIs) are mapped in a subframe, each of the shortened TTIs comprising 1-7 OFDM symbols; and a transmitter operative to transmit a physical channel in one of the shortened TTIs and transmit at least the first type of RSs.

Abstract: Computerized wireless transmitter/receiver system that automatically uses combinations of various methods, including transmitting data symbols by weighing or modulating a family of time shifted and frequency shifted waveforms bursts, pilot symbol methods, error detection methods, MIMO methods, and other methods, to automatically determine the structure of a data channel, and automatically compensate for signal distortions caused by various structural aspects of the data channel, as well as changes in channel structure. Often the data channel is a two or three dimensional space in which various wireless transmitters, receivers and signal reflectors are moving. The invention's modulation methods detect locations and speeds of various reflectors and other channel impairments. Error detection schemes, variation of modulation methods, and MIMO techniques further detect and compensate for impairments.

Abstract: Disclosed are a frame transmission method and a communication device performing the same. The communication device transmits a null data packet (NDP)-announcement (NDP-A) including information on a plurality of communication devices participating in interference alignment and transmits an NDP including a common signal field and a common training field commonly applied to the plurality of communication devices.

Abstract: A method for receiving feedback information by a first moving object may comprise the steps of: transmitting a sidelink sounding reference signal (SRS) to a second moving object through each of distributed transmit antennas; receiving, from the second moving object, feedback information including first information associated with the similarity in coherent time between each of distributed receive antennas of the second moving object; and setting a transmission period of the sidelink SRS on the basis of the feedback information.

Abstract: A wireless node may transmit, to a user equipment (UE), a plurality of repetitions of an indication signal to indicate one or more parameters relating to a subsequent transmission of a physical downlink control channel (PDCCH). The wireless node may also transmit the PDCCH after the plurality of repetitions of the indication signal and in accordance with the one or more parameters of the indication signal.

Abstract: A method and device for transmitting a synchronization signal includes: performing channel detection on time-frequency resources corresponding to a synchronous broadcast block of a base group to be sent and a synchronous broadcast block of an extended group, respectively, so as to detect whether the time-frequency resource is idle, wherein the base group and the extended group include synchronous broadcast blocks of the same serial number; the synchronous broadcast block of the base group of the same sequence number and the synchronous broadcast block of the extended group correspond to different time-frequency resources; transmitting an information block on the time-frequency resource when the time-frequency resource corresponding to the at least one synchronous broadcast block in the base group and the extended group is idle, the information block including the at least one synchronous broadcast block.

Abstract: A wireless device is configured to perform measurements for radio resource management (RRM) and/or radio link monitoring (RLM). The wireless device performs a plurality of radio measurements. The wireless device filters at least a first subset of the radio measurements using a first filtering configuration and filters at least a second subset of the radio measurements using a second filtering configuration, where the second filtering configuration differs from the first filtering configuration. The first and second filtering configurations apply to first and second different types of reference signals, respectively, or to beam-level measurements and cell-level measurements, respectively.

Abstract: In an embodiment, there is provided a method for the support of data transmission in a packet mobile network, for PDN connectivity over the packet mobile network between an User Equipment UE and an external Packet Data Network PDN, the packet mobile network comprising a Core Network CN accessed by a Radio Access Network RAN, the data transmission using a tunnel over an interface between a serving RAN node and a serving user plane CN node, the method including support of the data transmission in a mode referred to as connectionless transmission mode, wherein the tunnel over the interface is predefined and identified using information referred to as Connection ID information, providing a reference to the PDN and to the serving user plane CN node.

Abstract: A data transmission method is provided to resolve a problem of data transmission delay in a DRX mechanism. A RAN device sends, to a terminal in a DRX active period, first grant information that is used to perform initial transmission grant for first data. The RAN device sends, to the terminal in a retransmission active time in which the terminal expects to receive a retransmission grant for the first data, second grant information that is used to perform initial transmission grant for second data. Then the RAN device and the terminal remain in an active state in an activation extension time that is after sending of the second grant information.