Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may communicate, using a first set of active antenna elements of an antenna array, during a first time period. The network node may activate a second set of active antenna elements based on a dynamic antenna set switching scheme, wherein the second set of active antenna elements includes at least one active antenna element not included in the first set, wherein a difference between a first main lobe property and a second main lobe property satisfies a main lobe threshold, and wherein a difference between a first side lobe property and a second side lobe property satisfies a side lobe threshold. The network node may communicate, using the second set of active antenna elements, during a second time period. Numerous other aspects are described.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a network node may determine a reference location associated with a virtual image corresponding to a target area. The network node may transmit a radio frequency signal, wherein the radio frequency signal is beamformed based at least in part on the reference location to direct the radio frequency signal to the target area. Numerous other aspects are described.

Abstract: A system (1) for beamforming of incoming radio-frequency signals is provided. The system includes at least one digital signal processor, DSP, a plurality of analogue-to-digital converters, ADC, each connected to the at least one DSP. Further, the system comprises a plurality of sample-and-hold, S&H, circuit groups, each comprising a plurality of sample-and-hold circuits additively connected to a respective ADC and a plurality of receiving antenna connections each connected to a respective S&H circuit in each group at one end and each antenna connection connected to a respective antenna. The system is configured to selectively alternate between a plurality of beamforming functionalities, wherein the receiver system is arranged to time-interleave the ADCs and control specific S&H circuits in each S&H group by at least one of time-interleave or disable specific S&H circuits depending on a set beamforming functionality. An associated method (100) is also provided.

Abstract: Some demonstrative embodiments include apparatuses, devices, systems and methods of beamforming. For example, a responder station may process a received Beam Refinement Protocol (BRP) request including a beam tracking request from an initiator station; and select whether or not to transmit a BRP response including beam tracking feedback, in response to the BRP request, based on a comparison between a time period and a BRP tracking time limit, the time period being based on a timing of the BRP request and a timing of the BRP response.

Abstract: Method and apparatus for dynamic polarization combining. The apparatus identifies a first polarization of a first set of antenna elements on a first side of an antenna module having two or more sides. The apparatus identifies a second polarization of a second set of antenna elements on a second side of the antenna module. The apparatus determines, for an antenna layer, a dynamic polarization combination between the first set of antenna elements having the first polarization with the second set of antenna elements having the second polarization. The apparatus communicates with a network node via the antenna module based on the dynamic polarization combination.

Abstract: According to an aspect, a waveguide system includes a first node, a second node, and a double-ridge waveguide. The double-ridge waveguide includes a metallic shell surrounding a waveguide core that forms a communication and radio frequency power transmission path in an aerospace environment. The first node is configured to propagate at least one communication channel and a radio frequency power transmission through the waveguide core to the second node during operation of the waveguide system in the aerospace environment.

Abstract: The present teachings is generally directed to facilitating satellite and terrestrial internet communications. In some embodiments, configuration information for configuring a communications device may be retrieved. The configuration information may be provided to the communications device, and the communications device may be caused to be configured based on the configuration information. Responsive to receiving a first data signal from a first satellite, the communications device may be configured to generate and output a second data signal based on the first data signal, the first data signal including first data encoded using one or more space-based communication protocols, and the second data including second data encoded using one or more terrestrial-based communication protocols.

Abstract: Systems and methods are disclosed herein for frequency adjustment in a wireless network, particularly a Non-Terrestrial Network (NTN). Embodiments of a method performed by a User Equipment (UE) are disclosed. In one embodiment, a method performed by a UE for compensating for a Doppler shift in a wireless network comprises obtaining, from a network node, a characterization of Doppler variations in a particular cell. The method further comprises tuning a local frequency reference fRef, of the UE to a received downlink frequency for the particular cell and adjusting the local frequency reference fRef, over time according to the pre-calculated characterization of Doppler variations in the particular cell. In this manner, the communication between the UE and the network node in the presence of large and varying Doppler shifts is enabled. Embodiments related to compensating for timing drift are also disclosed.

Abstract: The disclosure relates to a communication technique for converging IoT technology with 5G communication systems designed to support a higher data transfer rate beyond 4G systems, and a system therefor. Provided is a method for operation of a user equipment and a base station in a wireless communication system, including identifying a timing advance (TA) value for transmitting an uplink signal and transmitting the uplink signal, with the TA value identified based on a first value, a second value, and a third value NTA. The first value is based on a random access response or a timing advance medium access control control element, the second value is derived from higher layer parameters, and the third value is obtained by the UE based on a position of the UE and a position of a satellite connected to the UE.

Abstract: A wireless communication network such as a 5G communication network can use MIMO technologies to enhance bandwidth between a wireless communications base station and one or more user equipment devices within a service area of the base station. RF signal repeaters can be utilized to provide one or more additional physical channels for communication between the MIMO base station and the MIMO user equipment. These RF signal repeaters can be regarded as increasing the MIMO channel diversity within the ambient environment.

Abstract: In one aspect, an example method to be performed by a vehicle-based media system includes (a) receiving audio content; (b) causing one or more speakers to output the received audio content; (c) using a microphone of the vehicle-based media system to capture the output audio content; (d) identifying reference audio content that has at least a threshold extent of similarity with the captured audio content; (e) identifying visual content based at least on the identified reference audio content; and (f) outputting, via a user interface of the vehicle-based media system, the identified visual content.

Abstract: An outdoor satellite receiving unit (ODU) receives several independent satellite signals, selects two signals with a switch matrix, downconverts the two signals to a bandstacked signal with a high and a low band signal, and outputs the bandstacked signal on the same cable to receiver units. Several satellite signals can be selected in groups of two or more and output to independent receiver units. Signal selecting is performed at the received radio frequency (RF) and bandstacking is performed with a single downconversion step to an intermediate frequency (IF). Channel stacking on the same cable of more than two channels from several satellites can be achieved by using frequency agile downconverters and bandpass filters prior to combining at the IF output. A slow transitioning switch minimizes signal disturbances when switching and maintains input impedance at a constant value.

Abstract: A method of transmitting, by a first user equipment (UE), a sidelink synchronization signal to a second UE in a wireless communication system ay include determining values of NID(1) and NID(2) corresponding to a sidelink identifier (SLID) value based on a number of types of a physical layer sidelink synchronization identity set and a number of sequences included in each type of the physical layer sidelink synchronization identity set; generating a sidelink primary synchronization signal (PSS) sequence and a sidelink secondary synchronization signal (SSS) sequence based on a first primitive polynomial, a second primitive polynomial, and a cyclic shift (CS) value; and mapping, on physical resources, and thereby transmitting the sidelink PSS sequence and the sidelink SSS sequence.

Abstract: Consistent with the present disclosure, a photonic integrated circuit (PIC) is provided that has 2 N channels (N being an integer). The PIC is optically coupled to N optical fibers, such that each of N polarization multiplexed optical signals are transmitted over a respective one of the N optical fibers. In another example, each of the N optical fibers supply a respective one of N polarization multiplexed optical signals to the PIC for coherent detection and processing. A multiplexer and demultiplexer may be omitted from the PIC, such that the optical signals are not combined on the PIC. As a result, the transmitted and received optical signals incur less loss and amplified spontaneous emission (ASE) noise. In addition, optical taps may be more readily employed on the PIC to measure outputs of the lasers, such as widely tunable lasers (WTLs), without crossing waveguides.

Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. Disclosed are an apparatus and a method for providing time synchronization between wiredly or wirelessly connected terminals by expanding a function for supporting a Time Sensitive Network (TSN) in a 5G System (5GS) of 3rd. Generation Partnership Project (3GPP).

Abstract: Systems and methods for differentiated application of an Adaptive Coding and Modulation (ACM) to enhance link performance in satellite communication systems are disclosed. A system may include a processor and a memory storing instructions, which when executed by the processor, cause the processor to dynamically compute bandwidth capacity of a terminal from a plurality of terminals. Based on the computed bandwidth capacity of the terminal, the processor may automatically determine a ModCod to be applied for transmission to or from the terminal to optimize bit error rate (BER) performance. The to processor may determine the ModCod using an ACM technique. For the plurality of terminals, the processor may dynamically determine aggregate bandwidth availability and congestion within the ACM technique to optimize sharing of available bandwidth.

Abstract: A communication method is configured to increase speed of messages reception over a bandwidth limited channel such as high frequency (HF) radio. User data arriving from a high-speed network is transformed into a format suitable for transmission over the radio channel. Message packets that will take longer to reach a destination via the radio channel as compared to alternative channels, such as a fiber optic network, are rejected for radio transmission. When the packet is received, the receiver deduces message length by using information from various error handling techniques, such as forward error correction (FEC) and cyclic redundancy check (CRC) techniques. Fill data is transmitted between message packets when no data is available. The FEC and CRC information for the fill data is modified so that the fill data will fail FEC and CRC checks at the receiving station.

Abstract: An embodiment relates to a method for transmitting sidelink hybrid automatic repeat request (HARQ) feedback by a terminal in a wireless communication system, the method comprising the steps of: receiving a physical sidelink feedback channel (PSFCH) from another terminal; and transmitting, on the basis of a Uu link HARQ codebook and a sidelink HARQ codebook, Uu link HARQ feedback and sidelink HARQ feedback associated with the PSFCH to a base station, wherein the codebook type of the sidelink HARQ codebook is configured to be the same as the codebook type of the Uu link HARQ codebook, on the basis of the multiplexing of the Uu link HARQ feedback and the sidelink HARQ feedback.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive information indicating whether hybrid automatic repeat request (HARQ) feedback is disabled for one or more HARQ processes. The UE may receive a downlink communication. The downlink communication may include a HARQ process identifier that indicates a HARQ process to be used for the downlink communication. The UE may selectively provide HARQ feedback for the downlink communication based at least in part on the HARQ identifier and information indicating whether HARQ feedback is disabled for the HARQ process. Numerous other aspects are provided.

Abstract: Techniques are described to feedback hybrid automatic repeat request acknowledgement (HARQ-ACK) codebook. For example, a base station can send HARQ-ACK codebook information to a user equipment, schedule retransmission, and transmit a downlink feedback information (DFI) if the user equipment transmits a code block group (CBG) based autonomous transmission. Techniques are also described for a user equipment to improve the feedback HARQ-ACK efficiency for downlink physical downlink shared channel (PDSCH) transmission.

Abstract: A network node (14) communicates with a wireless device (12) to provide Hybrid Automatic Repeat Request (HARQ) feedback for autonomous uplink transmissions in an unlicensed spectrum. The network node receives a plurality of autonomous uplink transmissions from the wireless device in the unlicensed spectrum, and transmits HARQ feedback for the plurality of autonomous uplink transmissions to the wireless device, the HARQ feedback comprising a bit map of some or all HARQ processes configured for at least one cell (16) and a corresponding bit acknowledgement mapped to each HARQ process.

Abstract: A redundant communication apparatus includes a determining unit and a transmitting unit. The determining unit determines an upper limit of a redundancy level when transmission waiting data in a transmission apparatus is made redundant and transmitted, based on a data quantity of the transmission waiting data and a communication speed of a communication line between a reception apparatus that is a transmission destination of the transmission waiting data and the transmission apparatus. The transmitting unit causes the transmission waiting data to be made redundant at a redundancy level that is equal to or less than the upper limit determined by the determining unit and transmits the data to the reception apparatus via the communication line.

Abstract: There is disclosed a method of operating a wireless device in a wireless communication network, the wireless device being triggered for aggregated transmission of first control information associated to a control channel, the aggregated transmission indicating a number R of retransmissions of the first control information to be performed. The method includes transmitting the first control information on a data channel based on a scaling parameter, the scaling parameter being based on the number R of retransmissions. The disclosure also pertains to related devices and methods.

Abstract: A feedback method for grant-free uplink transmission includes: receiving, by an access network device, uplink data sent by a UE in a UE group, wherein the UE group includes n UEs, n being a positive integer; sending, by the access network device, downlink feedback information in a group common search space corresponding to the UE group, wherein the downlink feedback information indicates uplink transmission success/failure of the UE group. For the grant-free uplink transmission, the UE group can be acquired by grouping the UE, the access network device can send the downlink feedback information in the group common search space corresponding to the UE group, and the uplink transmission success/failure of the UE group can be indicated by the downlink feedback information.

Abstract: A classification apparatus includes a memory and a processor. The memory is configured to store rules corresponding to a corpus of rules in respective rule entries, each rule includes a respective set of unmasked bits having corresponding bit values, and at least some of the rules include masked bits. The rules in the corpus conform to respective Rule Patterns (RPs), each RP defining a respective sequence of masked and unmasked bits. The processor is configured to cluster the RPs, using a clustering criterion, into extended Rule Patterns (eRPs) associated with respective hash tables including buckets for storing rule entries. The clustering criterion aims to minimize an overall number of the eRPs while meeting a collision condition that depends on a specified maximal number of rule entries per bucket.

Abstract: Some embodiments provide a method for evaluating locations of applications in a multi-cloud network with applications located in different cloud datacenters of one or more cloud providers. The method receives data for flows collected from the cloud datacenters. The data for each flow indicates a source and destination of the flow and applications to which at least one of the source and destination of the flow belong. The method uses network topology data to identify a subset of the flows as egress flows, each of which is charged by a cloud provider at which the flow source is located. Based on data from the cloud providers, the method determines a cost for each of the egress flows and a cost associated with each of the applications. The method provides these costs to users of the network for the users to optimize locations of the applications in the different cloud datacenters.

Abstract: Machine-learning-based determination of event stability is provided to facilitate loose coupling of event coordination systems. The method includes training a machine learning model to determine stability of events of an event coordination system based on a plurality of attributes of the events, and using the machine learning model to determine an event stability for an event of the event coordination system. Further, the method includes comparing the determined event stability for the event to a stability threshold, and determining that the event is a stable event based on the event stability extending the stability threshold. Based on determining that the event is the stable event, the stable event is propagated from the event coordination system to another event coordination system.

Abstract: Management of web conference assets in a content management system. At the conclusion of a web conferencing session, an event is raised at the content management system. Various web conference assets (e.g., recordings) and web conference parameters are analyzed in conjunction with content management system metadata. Based on the analysis, one or more actions to perform on the web conference assets are determined. The content management system metadata may include user profile information of at least one web conference participant. Rules and/or a classification model that considers then-current conditions at the content management system are used singly, or in combination, to determine action characteristics and/or labels such as a retention period or security classifications to apply to the web conference assets. The web conference assets are stored in a hierarchical directory at the content management system. The hierarchy of the directory is derived from aspects of the web conferencing facility.

Abstract: In some examples, a computing device can include a processor resource and a non-transitory memory resource storing machine-readable instructions stored thereon that, when executed, cause the processor resource to: activate a silent mode for the computing device when a videoconference is initiated, set a threshold volume and designated frequency range for the computing device, deactivate the silent mode for the computing device when a microphone associated with the computing device receives a sound that exceeds the threshold volume and is within the designated frequency range, send the received sound to other users of the videoconference, and activate the silent mode for the computing device when the computing device stops receiving the sound.

Abstract: A method and system for managing delivery of a content stream to a plurality of devices participating in an online conference session, including delivering, to each of the devices, the content stream associated with the online conference session at a first signal quality, receiving an indication signal indicating that a first device is to broadcast the content stream, responsive to the indication signal, increasing a signal quality of the content stream delivered to the first device from the first signal quality to a second signal quality, wherein the second signal quality is higher than the first signal quality, delivering the content stream to the first device at the second signal quality, and delivering the content stream to the rest of the devices at the first signal quality or a third signal quality, wherein the third signal quality is lower than the first signal quality.

Abstract: A device for retrieving previous chat history from a chat room includes a control module configured to generate a chat history retrieval request, a transmitting/receiving module configured to transmit the generated chat history retrieval request to a server, and to receive, from the server, a previous chat history, and an input/output module configured to display the received previous chat history in a chat window. The invitation message at least includes an ID of the first user, an ID of the second user, an ID of the chat room, a transmission time of the invitation message, and a previous message code. The previous message code is unit time for limiting the retrieval start point.

Abstract: Various arrangements for using captured voice to generate a custom interface controller are presented. A vocal recording from a user may be captured in which a spoken command and multiple smart-home devices are indicated. One or more common functions that map to the multiple smart-home devices may be determined. A custom interface controller may be generated that controls the one or more common functions of each smart-home device of the multiple smart-home devices.

Abstract: A system and method are disclosed that utilizes an artificial intelligence based virtual proxy node. The virtual proxy node includes an intent resolution model and communicates between a smart audio device and at least one secondary device, wherein the at least one secondary device is configured to be controlled by a smart audio device or smart hub. The virtual proxy node tracks interactions between the smart audio device and the at least one secondary device to derive historical and context data from the tracking interactions. The virtual proxy node uses the historical and context data to predict which secondary device will be successful in responding to the user input command and broadcasts the input command to the virtual proxy node associated with one of the at least one secondary device. The virtual proxy node includes an intent resolution model trained by historical and context data.

Abstract: A communication redundancy system for an autonomous vehicle includes: a vehicle network domain including a bus configured to transmit a signal, terminal end resistors disposed at both ends of the bus, and a plurality of electronic control units (ECUs) connected to the bus; a plurality of gateways connected to the vehicle network domain; and a high-level ECU connected to the plurality of gateways and configured to control the plurality of ECUs to implement autonomous driving of a vehicle. Each of the plurality of gateways detects disconnection of the bus in the vehicle network domain and, when the disconnection of the bus is detected, the plurality of gateways transmit pieces of data of the plurality of ECUs to the high-level ECU.

Abstract: A method, a bus system, and a transportation means control a utilization of the bus system. The method includes determining a first piece of information representing a current and/or a future utilization of the bus system, and determining a second piece of information representing respective data transmission time periods for a plurality of bus subscribers which transmit data by means of the bus system, as a function of the first piece of information. The method also includes transmitting the second piece of information to the plurality of bus subscribers, and adjusting respective data transmission time periods for the plurality of bus subscribers by the respective bus subscribers, as a function of the second piece of information, and transmitting data by the plurality of bus subscribers within the respective adjusted data transmission time periods by means of the bus system.

Abstract: A device for coupling a fieldbus to a local bus for connection to at least one data bus subscriber, the device comprising a first unit that is connectable to the fieldbus and is adapted for sending and receiving data via the fieldbus; a second unit that is connectable to the local bus and is adapted for sending and receiving data via the local bus in at least one data packet; a data management unit that is connected to the first unit and the second unit, wherein the data management unit is adapted for transferring first symbols from data received via said first unit to said second unit in a sequence-dependent manner; and wherein the second unit is adapted to send at least one data packet including the first symbols on the local bus. In addition, a corresponding method for transferring data is described.

Abstract: Techniques for ensuring symmetric forwarding between disparate networks. The techniques may include receiving a gateway preference order associated with a route advertised by an edge node, the edge node associated with a first network. The techniques may also include determining, based at least in part on the gateway preference order, that a gateway node is a more preferred gateway for the route than another gateway node, the gateway node configured to facilitate communications between the first network and a second network. In some examples, the techniques may also include converting the gateway preference order into a metric associated with an IP routing protocol that is in use in the second network. In some examples, the route including the metric may be distributed within the second network such that the gateway node is the more preferred gateway for return traffic of the route.

Abstract: A Wi-Fi controller identifies a mismatch between a first prefix of a first IPv6 address for a data packet corresponding to a first VLAN on which the data packet was sent from the station to the access point, and a prefix of a second IPv6 address for a second VLAN from which the data packet was transmitted from the access point to the Wi-Fi controller. Responsive to the VLAN mismatch identification, the Wi-Fi controller transmits an RA to the station with a preferred lifetime of 0, wherein subsequent communications use the second IPv6 address.

Abstract: A gateway device selection method is provided. The method includes: receiving, by a terminal device, a message from a gateway device, where the message includes identification information of the gateway device, and the identification information of the gateway device indicates information about the gateway device; determining, by the terminal device, that the identification information of the gateway device is consistent with preset identification information of a gateway device on the terminal device, and using the gateway device as a selected gateway device; and sending, by the terminal device, a data packet to the selected gateway device. This helps the terminal device correctly identify the gateway device to which the terminal device is to send data.

Abstract: The present disclosure provides a method for transmitting and receiving in a wireless communication system and an apparatus therefore. Specifically, in a wireless communication system according to an embodiment of the present disclosure, there is provided a method for transmitting and receiving a signal by a receiving apparatus, the method includes receiving, from a transmitting apparatus, signals modulated based on a differential phase shift keying (DPSK) method through a plurality of reception paths, calculating a differential value in each reception path of the plurality of reception paths based on the received signals, and calculating reliability for the received signals, in which the reliability is proportional to a real value of a sum of the differential values in each reception path of the plurality of reception paths.

Abstract: A method performed by an artificial neural network includes determining a conditional probability distribution representing a channel based on a data set of transmit and receive sequences. The method also includes determining a latent representation of the channel based on the conditional probability distribution. The method further includes performing a channel-based function based on the latent representation.

Abstract: The present application provides a signal compensation method and a signal compensation device; in which, a pre-equalization processing is performed respectively on a plurality of bits corresponding to each modulation symbol in a bit sequence to be modulated, and results of the pre-equalization processing are simply added and then subjected to a nonlinear predistortion processing.

Abstract: A digital receiver being adapted for receiving an MSK modulated signal, comprises a digital front-end unit (10) adapted for providing samples having a phase value (?measure) of a down-mixed signal, a phase compensation unit (11) adapted for compensating the phase value (?measure) by delivering a phase offset compensated sample having a phase value (?sync), and a coherent demodulator (12) adapted for recovering information content from the phase offset compensated sample. The phase compensation unit (11) is adapted for analyzing a phase value (?sync) of the phase offset compensated sample, calculating a phase offset value (?offset) based on the phase value (?sync) of the phase offset compensated sample, and applying the phase offset value (?offset) when delivering a subsequent phase offset compensated sample.

Abstract: This application provides a narrowband interference isolation method and a communication apparatus. An example method includes: determining a parameter of a narrowband interference signal; determining a coefficient of a first filter based on the parameter of the narrowband interference signal, wherein the first filter is located at a receive end of a master communication device, and the coefficient of the first filter is for filtering out the narrowband interference signal; and sending the parameter of the narrowband interference signal or the coefficient of the first filter to M slave communication devices using an Ethernet operation, administration, and maintenance (OAM) frame, wherein the master communication device is connected to the M slave communication devices, M?1, and M is an integer.

Abstract: According to one embodiment, a wireless communication device includes a transmitter configured to transmit a first frame including first information required for uplink multi-user transmission without receiving a transmission request for the first information; and a receiver configured to receive a second frame.

Abstract: A communication system includes a communication apparatus and a base station. The communication apparatus includes a Discrete Fourier Transform (DFT) transformer which transforms a time-domain signal into a frequency-domain signal with a DFT size that is a product of powers of a plurality of values; a mapper which maps the frequency-domain signal on a plurality of frequency bands, each frequency band being located at a position separate from position(s) of other(s) of the plurality of frequency bands; and a signal generator which generates a single carrier-frequency division multiple access (SC-FDMA) time-domain signal from the mapped signal. The base station includes a receiver which receives the SC-FDMA time-domain signal; a combiner which generates the frequency-domain signal from the SC-FDMA time-domain signal; and a transformer which transforms the frequency-domain signal into the time-domain signal with an inverse Discrete Fourier Transform (IDFT) having the DFT size.

Abstract: A base station transmits, to a wireless device, configuration parameters indicating: downlink resources of a downlink control channel associated with a slot format indication (SFI) radio network temporary identifier (RNTI), and a discontinuous reception (DRX) operation for the wireless device to monitor the downlink control channel. Based on the downlink resources, a monitoring occasion for the downlink control channel is determined to transmit a downlink control information associated with the SFI RNTI. Regardless of whether the DRX operation is in an active time and during the monitoring occasion, the downlink control channel is transmitted that includes the downlink control information associated with the SFI RNTI and indicating a slot format. Based on the slot format, one or more transport blocks is received from the wireless device.

Abstract: A wireless transmit/receiver unit (WTRU) is configured to receive sounding reference signal (SRS) configuration information. The SRS configuration information indicates a plurality of SRS configurations and indicates antenna transmission information. The WTRU is configured to receive SRS trigger information. The SRS trigger information comprises an indication to trigger transmission of one of the plurality of SRS configurations. The WTRU is configured to transmit a plurality of SRS associated with the indication in the SRS trigger information and based on the SRS configuration information. At least a first SRS of the plurality of SRS is transmitted over a first antenna port in a first symbol and at least a second SRS of the plurality of SRS is transmitted over a second antenna port in a second symbol.

Abstract: A method for transmitting a signal, and an apparatus, a storage medium, and a user terminal are provided. The method includes: determining a plurality of baseband signals of Component Carriers (CC); selecting a plurality of phase rotation factors and recording a number of times of selection by adding one each time of selection; determining a candidate signal and a Peak to Average Power Ratio (PAPR) of the candidate signal, wherein in response to the PAPR being greater than or equal to a preset threshold and the number of times of selections not reaching a preset number of times, reselecting phase rotation factors and re-determining another candidate signal and a PAPR of the another candidate signal, until a PAPR is less than the preset threshold or the number of times of selections reaches the preset number of times; and transmitting the candidate signal.

Abstract: A method and an apparatus for transmitting an EHT PPDU to a WLAN system are proposed. Specifically, a transmitter generates and transmits an EHT PPDU to a receiver through a 320 MHz band from which an 80 MHz band is punctured. The EHT PPDU includes a legacy preamble and an EHT field. The legacy preamble includes an L-STF and an L-LTF. The legacy preamble is generated by applying a first phase rotation value. The first phase rotation value is obtained on the basis of a second phase rotation value and a third phase rotation value. The second phase rotation value is a phase rotation value that repeats a phase rotation value defined for the 80 MHz band in an 802.11ax system. The third phase rotation value is a phase rotation value defined in unit of the 80 MHz band in the 320 MHz band on the basis of an optimal PAPR of the L-STF and L-LTF. The first phase rotation value is [1 1 ?1 ?1 ?j ?j j j 1 1 ?1 ?1 ?j ?j j j].