Abstract: A communication system is configured to use a pulse width modulation signal as transmission code among a plurality of nodes connected to a communication line. A master node includes a transmission transistor connected to the communication line, a detector configured to detect a variation in current during the on-period of the transmission transistor, and a communication circuit configured to determine the off-timing of the transmission transistor based on the timing of occurrence of the variation in current (i.e., the on-timing of a second transmission transistor provided in a slave node). For example, the communication circuit can be configured to determine the off-timing of the transmission transistor such that the simultaneously-on period TB of the transmission transistor and the second transmission transistor fulfills TB=(2n?1)/2f, where f is the frequency of EMI noise.

Abstract: Wireless device for use with a second wireless device in a communication network to: detect the unique identifier broadcast from the second wireless device; determine a distance from the second wireless device based on the unique identifier broadcast; and instruct the indicator to provide an alert when the distance from the second wireless device is less than a predetermined distance threshold for a predetermined period of time.

Abstract: A method of operating a long term evolution (LTE) communication system on a shared frequency spectrum is disclosed. A user equipment (UE) is initialized on an LTE frequency band. A base station (eNB) monitors the shared frequency spectrum to determine if it is BUSY. The eNB transmits to the UE on the shared frequency spectrum if it is not BUSY. The eNB waits for a first time if it is BUSY and directs the UE to vacate the shared frequency spectrum after the first time.

Abstract: Delegated administration of permissions using a contactless card. In one example, a permissions module may receive a request from a first account to grant a second account access to a computing resource. The permissions module may receive permissions data of the first account from a contactless card and encrypted data generated by the contactless card. The permissions module may transmit the permissions data and the encrypted data to an authentication server, which may verify the encrypted data based at least in part on the private key, and determine, based on the permissions data, that the first account has permissions to grant access to the computing resource. The permissions module may receive, from the authentication server, an indication of the verification of the encrypted data and a permissions vector associated with the second account, the permissions vector reflecting the grant of access to the computing resource to the second account.

Abstract: Methods and apparatuses are provided for Vehicle-to-Everything synchronization for a first terminal.

Abstract: Contactless cards, apparatuses, computer-readable media, and methods for activating a contactless card. A contactless card may communicate, to a client device via a wireless communications interface, a network address associated with a web page. The contactless card may generate a cryptogram responsive to a request from the web page on the client device. The contactless card may communicate the cryptogram to the web page via the wireless communications interface. The contactless card may receive, from the web page, an instruction to activate a payment applet of the contactless card. The contactless card may activate the payment applet based on the instruction.

Abstract: Provided is a verification system and a verification method for an Ethernet interface chip. The verification system comprises a Reconciliation Sublayer (RS), a Physical Coding Sublayer (PCS), a Physical Medium Attachment (PMA) layer, and a flow control unit connecting the RS and the PMA layer, wherein the PMA layer is provided with a PMA clock and a buffer, the buffer is configured to store data transferred from the PCS, and the PMA clock is configured to control the PMA layer to send the data in the buffer to an Ethernet interface chip to be tested.

Abstract: The application relates to an addressing system for a wireless communication network. The system comprises a first communication device and a second communication device. The first and second communication devices belong to a group of plurality of communication devices of the network. Each communication device is configured to provide a bi-directional radio communication with at least one of the plurality of communication devices. Each communication device has a long node identifier (L-ID) for addressing said communication device and for being used in at least one security procedure of communication in the network. Each communication device is configured to generate a short node identifier (S-ID) for identifying said communication device in a dedicated communication between it and other communication device belonging to the plurality of communication devices.

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE detects one or more signals transmitted from a base station in a first unit of a set of units contained in a bandwidth part of an unlicensed carrier, the first unit having contiguous frequency resources. The one or more signals indicating that the base station has occupied the first unit for a first time duration and indicating a schedule of a set of slots in the first time duration for communication with the base station. The UE receives, in a first time slot of the set of slots and from the base station, a control channel.

Abstract: A Bluetooth receiver is provided. The Bluetooth receiver comprises interface circuitry configured to receive a receive packet. Further, the Bluetooth receiver comprises physical layer processing circuitry configured to demodulate the receive packet into a bit stream representing a sequence of data symbols. Further, the physical layer configured to determine a number of bits in the bit stream having a highest likelihood of being erroneous as weak-bits and determine locations of the identified weak-bits in the bit stream. The Bluetooth receiver further comprises medium access control layer processing circuitry configured to receive the bit stream and information about the determined locations of the identified weak-bits from the physical layer processing circuitry.

Abstract: A method for handling a broadcast data packet using a network (300) including a plurality of nodes (NH, N1, N2, N3, N4, N5, N6), the method including: receiving, at a sending node, the broadcast data packet; checking, at the sending node, whether the broadcast data packet has been received at the sending node on a previous occasion, wherein if the sending node has not previously received the broadcast data packet the sending node enters a broadcast delivery mode, the broadcast delivery mode including: switching to a scan mode to listen for advertisements from other nodes in the network; starting a timer; wherein upon receipt of an advertisement from a neighbouring node the sending node sends an instance of the broadcast data packet to the neighbouring node and resets the timer.

Abstract: Co-existence between an Orthogonal Time Frequency Space (OTFS) modulation system and a Long Term Evolution (LTE) system is achieved by generating a number of transmission beams for a first group of user equipment operating using LTE, and a second group of user equipment operating using the OTFS protocol, and transmitting a first group of data packets formatted according to the LTE protocol to the first group of user equipment and a second group of data packets formatted according to the OTFS protocol to the second group of user equipment. The transmissions are performed by precoding and modulating the first group of data packets according to an LTE modulation scheme, and precoding and modulating the second group of data packets according to an OTFS modulation scheme.

Abstract: Methods and apparatus for automatically reconfiguring network parameters are described. Some embodiments identify communication channels that may interfere with higher priority equipment and deactivate communication channels that may cause harmful interference. Some APs are switched to 2.4 GHz communication channels. In some embodiments, AP operating parameters, such as transmission power are adjusted to reduce interference for higher priority receivers.

Abstract: The present disclosure relates to a wireless battery management system which ensures stability when obtaining battery data through wireless communication. The battery management system includes a manager node operating a primary channel and a secondary channel based on wireless communication and obtaining battery data from a monitor node by using the primary channel or the secondary channel and a monitor node connected to a battery module to collect battery data including one or more of a current, a voltage, a temperature, and self-diagnosis data of the battery module, transmit the collected battery data to the manager node through the primary channel, and when the transmission of the battery data through the primary channel fails, transmit the battery data to the manager node through the secondary channel.

Abstract: Systems, methods and instrumentalities are disclosed for offloading computation for an application on a local device in a wireless network, comprising determining service-level requirements for the application, wherein the service-level requirements comprise one or more of latency, reliability, and power consumption for processing; determining wireless network conditions; determining local device conditions; partitioning the application into one or more tasks; comparing a processing time of a task at the local device to a latency requirement of the task, and: if the processing time of the local device would exceed the latency requirement of the task, determining to offload the task; and if the processing time of the local de vice would not exceed the latency requirement of the task, comparing a power consumed at the local device to offload the task to a power consumed at the local device to execute the task, wherein if the power consumed at the local device to offload the task is less than the power consumed

Abstract: Two-way (full-duplex) wireless communications. Various embodiments measure interference channels and provide for interference cancellation in both analog and digital domains to mitigate self-interference. The system supports multiple clients wherein new clients can join the network asynchronously, and also supports Multiple-Input Multiple-Output (MIMO) antennas.

Abstract: A communication apparatus notifies that service information is to be communicated outside a cyclically repeated period in which a plurality of apparatuses including the communication apparatus transmits or receives a beacon to another communication apparatus included in the plurality of apparatuses and being a destination of the service information.

Abstract: Provided are a client signal transmission method, apparatus and system and a computer-readable storage medium. The method includes mapping a client signal into a predetermined container corresponding to the client signal; mapping the predetermined container into the corresponding number of first code blocks in a payload area of an optical transport network frame and inserting special idle code blocks during the mapping for rate compensation, where the first code blocks are obtained by dividing the payload area of the optical transport network frame; and sending the optical transport network frame carrying the predetermined container and configuration information of the predetermined container.

Abstract: Various systems and methods for implementing a service-level agreement (SLA) apparatus receive a request from a requester via a network interface of the gateway, the request comprising an inference model identifier that identifies a handler of the request, and a response time indicator. The response time indicator relates to a time within which the request is to be handled indicates an undefined time within which the request is to be handled. The apparatus determines a network location of a handler that is a platform or an inference model to handle the request consistent with the response time indicator, and routes the request to the handler at the network location.

Abstract: A method and apparatus may be used in multi-AP and multi-wireless transmit/receive unit joint transmissions. The apparatus may be configured to transmit a joint transmission request on a first medium, and receive a joint transmission response on the first medium. In response, the apparatus my perform a joint transmission negotiation on a second medium and transmit data on the second medium based on the joint transmission negotiation. The apparatus may be configured to perform coordinated sectorized or beamformed transmissions through access point (AP)/PCP negotiations. The apparatus may provide an indication of support for joint transmission and coordinated sectorized or beamformed transmissions. The method and apparatus may also implement multi-AP/WTRU request-to-send (RTS)/clear-to-send (CTS) procedures. The apparatus may be configured to perform coordinated sectorized or beamforming grouping.

Abstract: An apparatus, method and computer program is described comprising: executing, in a first mode of operation, a MIMO for one or more user devices eligible to transmit data in a slot of a packet scheduler, to generate MIMO operation outputs; obtaining, in a second mode of operation, estimated MIMO operation outputs for said one or more user devices from a lookup table; and determining whether to operate in the first mode of operation or the second mode operation.

Abstract: A method and a system of restricting data packet transmission of an apparatus at a network node. The network node, during a first time period, updates a whitelist and does not restrict data packet transmission according to the whitelist. After the first time period, the network node determines corresponding destination address of each of the data packets and allows the data packets to be sent to the corresponding destination address if a criteria is satisfactory. The network node does not allow the data packets to be sent to the corresponding destination address if the criteria is not satisfactory. The whitelist is comprised of at least one destination address. The criteria is based on the at least one destination address. The whitelist list is stored in non-transitory computer readable storage medium in the network node.

Abstract: The present invention relates to a wireless communication terminal and a wireless communication method for efficiently managing simultaneous data transmissions of a plurality of terminals. To this end, provided are a base wireless communication terminal including: a transceiver configured to transmit and receive a wireless signal; and a processor configured to control an operation of the base wireless communication terminal, wherein the processor is configured to: transmit a trigger frame triggering a multi-user uplink transmission of a plurality of terminals, receive multi-user uplink data through resources allocated to the plurality of terminals, and transmit a block ACK through the resources in response to the received multi-user uplink data, wherein the transmission of the block ACK in each resource is terminated at the same time, and a wireless communication method using the same.

Abstract: A network node (300), a wireless device (304) and methods therein, for handling interference in a wireless network where a Listen-Before-Talk, LBT, scheme is employed to control transmissions. The network node (300) determines whether a first wireless device (302) is compatible with a second wireless device (304) at a serving network node (300) so that uplink signals transmitted (3:1A, 3:2A) from the wireless devices (302, 304) are spatially separable at the serving network node (300). An LBT-related message is then transmitted (3:4A) to the first wireless device (302), which message indicates that the wireless devices (302, 304) are compatible or incompatible at the serving network node (300). The second wireless device (304) is then able to detect (3:4A), i.e. overhear, the LBT-related message and use it as a basis for deciding (3:5) whether to perform a transmission or not.

Abstract: A device resolves a collision between its transmission and a simultaneous transmission of another device. The device is configured to interrupt its transmission, determine a negotiation signal, and determine at least one available resource to occupy with the negotiation signal during a negotiation period. Further, the device is configured to transmit the negotiation signal on the at least one available resource and simultaneously receive a negotiation signal on another resource from at least one other device during the negotiation period. Then, the device is configured to decide, based on all negotiation signals, whether to retransmit the interrupted transmission after the negotiation period.

Abstract: Provided are a transmission method, apparatus and system and a computer-readable storage medium. The transmission method includes creating an automatic repeat request process for a first packet; setting a lifetime for the automatic repeat request process; and sending the first packet. The lifetime is set for the automatic repeat request process so that the automatic repeat request process can be removed in time. In this manner, in the case where a limited number of automatic repeat request processes are simultaneously supported, a new automatic repeat request process can be created for a newly transmitted packet in time, and thus the transmission efficiency is improved.

Abstract: An apparatus implemented in a master access point (AP) selects at least one basic service set (BSS) from one or more neighbor BSSs to form a spatial reuse group (SRG). The apparatus then performs coordinated spatial reuse (CSR) in the SRG with a set of overlapping basic service set (OBSS) power detection (PD) parameters.

Abstract: Methods, systems, and computer programs are presented for managing resources to deliver a network service in a distributed configuration. A method includes an operation for identifying resources for delivering a network service, the resources being classified by geographic area. Further, the method includes operations for selecting service agents to configure the identified resources, each service agent to manage service pools for delivering the network service across at least one geographic area, the service agents being selected to provide configurability for the service pools. The method further includes operations for sending configuration rules, to the service agents, configured to establish service pools for delivering the network service across the geographic areas. Service traffic information is collected from the service agents, and the resources are adjusted based on the collected service traffic information.

Abstract: A bus system is provided. A memory device is electrically connected to a master device via a serial peripheral interface (SPI) bus. A plurality of slave devices are electrically connected to the master device via an enhanced SPI (eSPI) bus. Each of the slave devices has an alert handshake pin. The alert handshake pins of the slave devices are electrically connected together via an alert-handshake control line. The first slave device is electrically connected to the memory device via the SPI bus. After obtaining a program code from the memory device, the first slave device verifies the program code using a security code and controls the alert-handshake control line to unlock all the slave devices except for the first slave device via the alert handshake pin in response to the program code being verified. The unlocked slave devices communicate with the master device via the eSPI bus.

Abstract: The apparatus may be a first device at a first RU (e.g., UE, base station, etc.). The first RU may be configured to receive, from a control unit, a configuration for relaying or repeating data received from a second RU to a receiving unit. The first RU may further be configured to determine whether first feedback associated with the data is received from the second RU. The first RU may also be configured to transmit second feedback to the receiving unit or the control unit, the second feedback including first information indicating at least one of the first feedback or whether the first feedback was received.

Abstract: A system for negotiating Ethernet link settings between interconnected nodes in a network having an Ethernet protocol stack that includes a PCS sub-layer with an auto-negotiation function. The system comprises connecting an intermediate device coupled between two network nodes via optical or copper interfaces, with the link settings between each node and the connected intermediate device being the same, thereby bypassing the auto-negotiation of the PCS sub-layer in the intermediate device. The intermediate device may transparently send negotiation messages from each node to the other during the link negotiation phase without interacting with those messages. Instead of the intermediate device, a single form pluggable (SFP) device may be connected between the two network nodes via optical or copper interfaces on the network side and via an SFP slot on the device side.

Abstract: A transmitter may allocate resources across multiple links for a transmission to a receiver. The transmitter may transmit a resource grant to the receiver. The transmission may include a data packet allocated across multiple links, and pilot signals on a number of links. The receiver may use an indicator included with the resource grant to trigger measurement of channel quality for links with pilot signals.

Abstract: A device implementing unified coordination of wireless communications over multiple physical layers may include a MAC module communicatively coupled to first and second physical layer modules that are each configured to communicate with another device over first and second physical wireless channels, respectively. The MAC module may be configured to provide data to the first physical layer module for transmission to the another device over the first physical wireless channel, where the first physical wireless channel is associated with a first link parameter. The MAC module may be further configured to facilitate initializing the second physical wireless channel based at least in part on the first link parameter of the first physical wireless channel, and after initialization of the second physical wireless channel, provide second data to the second physical layer module for transmission to the another device over the second physical wireless channel.

Abstract: Example methods and apparatus for implementing collision detection in data transmission are described, One example method includes sending a data packet including collision detection information to a receive end, where the collision detection information is used by the receive end to perform collision detection on the data packet. A status indication message sent by the receive end is received by the receive end when sending the data packet. The receive end parses the status indication message. If the status indication message includes collision information, the receive end perform retransmission of the data packet.

Abstract: A procedure and frame structure for Wi-Fi sensing is described. An aspect of the disclosure provides a method of sensing. Such the method includes sending, by an initiating station (STA) to a plurality of responder STAs, a sensing request comprising a sensing announcement frame indicating identifiers (ID) of the plurality of responder STAs. Such a method further includes receiving, by the initiating STA from the plurality of responder STAs, one or more responses based on the sensing request. In some embodiments, the announcement frame further indicates resource unit assignments for receiving acknowledgements from the plurality of responder STAs. In some embodiments, the method further includes receiving, by the initiating STA from the plurality of responder STAs, the acknowledgements indicating a willingness to participate in the sensing procedure.

Abstract: In a wireless network, a user equipment (UE) may skip an uplink transmission associated with a dynamic uplink grant. In such cases, when the UE skips an uplink transmission that would have been concurrent with a downlink transmission, the UE may perform one or more mode-dependent control operations. For example, because the uplink transmission would result in a full-duplex operation if the UE were to perform the uplink transmission, the UE may reset a timer associated with switching from a full-duplex mode to a half-duplex mode and/or perform one or more mode-dependent control operations in the full-duplex mode. Alternatively, because the UE refrains from performing the uplink transmission that would have resulted in a full-duplex operation, the UE may maintain the timer associated with switching from the full-duplex mode to the half-duplex mode and/or perform the one or more mode-dependent control operations in the half-duplex mode.

Abstract: A communication apparatus is provided, and the communication apparatus includes a control unit that performs control to: generate channel information relating to transmittable frequency channels of data, and bandwidth information relating to a bandwidth of a frequency to be used to transmit the data; transmit a request signal to another communication apparatus, by using a frequency channel that has been selected from the transmittable frequency channels, the request signal including the channel information and the bandwidth information that have been generated; and transmit the data to the other communication apparatus, by using frequency channels that have been selected as receivable frequency channels by the other communication apparatus. The present technology can be applied, for example, to a wireless LAN system.

Abstract: A method for operation of a broadband access network of a telecommunications network includes: in a first step, a first access functionality primarily associated with a first central office point of delivery is also connected to a second central office point of delivery, and a second access functionality primarily associated with the second central office point of delivery is also connected to the first central office point of delivery; and in a second step, the cluster controller and both a first control functionality or control plane of the first central office point of delivery and a second control functionality or control plane of the second central office point of delivery control whether the first and second access functionalities are served by the first central office point of delivery or second central office point of delivery.

Abstract: Various embodiments relate to a next generation wireless communication system for supporting a higher data transfer rate and the like beyond 4th generation (4G) wireless communication systems. Provided according to various embodiments are a method for transmitting/receiving a signal in a wireless communication system and a device supporting same, and various other embodiments may also be provided.

Abstract: A wireless station and protocols for a wireless local area network (WLAN) to support real-time application (RTA) packets in setting up an unsolicited retry policy for RTA packets within a TXOP in which the station retransmits RTA packets in time and frequency domains without waiting for feedback. Setting up block acknowledgement (BA) agreements to receive feedback for adapting future packet transmissions. Dropping an RTA packet if a retry count for that packet exceeds the unsolicited retry limit, or a lifetime of that packet has expired. Supporting multi-link devices (MLDs) including access point multi-link devices (AP-MLDs) for performing simultaneous transmit/receive (STR), and non-access point multi-link device (non-AP MLDs) which are not configured for simultaneous transmit/receive (non-STR).

Abstract: A vehicle route guidance computer system is configured to store habitual travel routes for drivers; detect driving by a vehicle of one of the drivers along one of the habitual travel routes; monitor vehicle location along the route; monitor traffic signal states and traffic conditions along the route; calculate an optimal velocity of the vehicle to maximize likelihood of reaching a next traffic signal along the route when the signal is green, and transmit a guidance signal to a guidance device in a vehicle to advise the driver to decelerate or accelerate the vehicle. The vehicle route guidance computer system may be further configured to detect an adverse condition along the route, calculate an alternative route, and transmit a direction guidance signal to the guidance device for guiding the driver to the alternative route.

Abstract: A monitoring device for monitoring an impedance of a protective conductor. The monitoring device has a first voltage divider for connection to a voltage source including a series connection to a first resistor and a second resistor. The second resistor has a resistance value which corresponds to a threshold value for the impedance of the protective conductor. A second voltage divider includes a series connection to a third resistor and a bridge diode and a connection to the first resistor at a first end of the third resistor and connectable to a second end of the third resistor and to the protective conductor. A measuring device is provided for the detection of a bridge voltage between a first node and a second node if the impedance of the protective conductor is greater than the value of the second resistor.

Abstract: A vehicle with an automatic accident report function. The vehicle includes a transmitter, a collector, a determiner, and a vehicle estimator. The transmitter automatically transmits, to a server apparatus, accident emergency information that is usable by the server apparatus to estimate injury of an occupant of the vehicle when an accident of the vehicle is detected or forecasted. The collector collects, in the vehicle, information of the vehicle involved in the accident. The determiner determines whether a communication environment is appropriate for transmission of the information from the transmitter to the server apparatus. The vehicle estimator estimates the injury of the occupant, using the information collected by the collector.

Abstract: A method and a device for handling an adaptive retransmission in a wireless communication system. The method includes receiving a RRC signaling configuring that the UE skips an UL transmission if there is no data available for transmission, receiving an UL grant for retransmission for a HARQ process when a HARQ buffer of the HARQ process is empty, and discarding the UL grant for the retransmission even if there is data available for transmission.

Abstract: The various embodiments provide methods implemented in a multi-RF communication device for managing a victim subscription's de-sense by proactively implementing an RF coexistence management strategy on the victim subscription when an RF coexistence event starts. In various embodiments, a multi-RF communication device may implement an RF coexistence management strategy by determining when an aggressor subscription will de-sense a victim subscription and configuring the victim to anticipate and mitigate de-sense during the aggressor's transmissions. Thus, the various embodiments may provide dramatic improvements to the victim's overall reception performance and overall user experience.

Abstract: Sidelink protocols enable user devices to rapidly find, make contact with, and continue communicating with other user devices. For example, vehicles in traffic can communicate on a low-complexity sidelink channel to cooperatively avoid collisions, saving countless lives. Disclosed protocols also enable mobile and IoT devices to form a self-organized temporary local network, independently of base stations. Example messages include a sidelink hailing message configured to discover other user devices, sidelink reply messages indicating the location or identity of each user device, sidelink semaphore messages indicating when each member enters and exits the temporary local network, and extremely fast low-latency emergency communication between vehicles. The disclosed low-complexity protocols may enable cost-constrained use cases that would remain unfeasible under 5G and 6G requirements, absent the systems and methods disclosed herein.

Abstract: A first relay device for installation at a vehicle, the first relay device comprising, a first memory and a first processor coupled to the first memory. The first processor being configured to receive a communication frame transmitted from another relay device. The first processor being configured to based on first relay information, in which destination address information expressing a destination address of a communication frame and a relay target bus are associated with each other, and based on the destination address information included in the received communication frame, identify the relay target bus. The first processor being configured to in a case in which the relay target bus of the received communication frame is not identified, output an anomaly notification signal indicating an anomaly to the other relay device.

Abstract: A secure industrial control system is disclosed herein. The industrial control system includes a plurality of industrial elements (e.g., modules, cables) which are provisioned during manufacture with their own unique security credentials. A key management entity of the secure industrial control system monitors and manages the security credentials of the industrial elements starting from the time they are manufactured up to and during their implementation within the industrial control system for promoting security of the industrial control system. An authentication process, based upon the security credentials, for authenticating the industrial elements being implemented in the industrial control system is performed for promoting security of the industrial control system. In one or more implementations, all industrial elements of the secure industrial control system are provisioned with the security credentials for providing security at multiple (e.g., levels of the system.

Abstract: A semiconductor device includes a communication unit which receives a frame at a first transmission period, demodulates control information from a received frame, modulates transmission data, and broadcasts a modulated transmission data at a second transmission period as a radio frequency packet signal, a period determination unit which determines the second transmission period based on vehicle information, and a transmission and reception control unit which generates a transmission timing trigger signal for determining a transmission timing of the transmission data based on the control information and the second transmission period, and outputs the transmission data to the communication unit in synchronization with the transmission timing trigger signal. The second transmission period is equal to or longer than the first transmission period.

Abstract: Co-existence between an Orthogonal Time Frequency Space (OTFS) modulation system and a Long Term Evolution (LTE) system is achieved by generating a number of transmission beams for a first group of user equipment operating using LTE, and a second group of user equipment operating using the OTFS protocol, and transmitting a first group of data packets formatted according to the LTE protocol to the first group of user equipment and a second group of data packets formatted according to the OTFS protocol to the second group of user equipment. The transmissions are performed by precoding and modulating the first group of data packets according to an LTE modulation scheme, and precoding and modulating the second group of data packets according to an OTFS modulation scheme.