Abstract: An example system including a first top-of-rack (ToR) switch, and a second ToR switch, the second ToR switch is to receive a network packet from a first host, the network packet to include a destination address of a second host, and after a failure of a physical network interface card (pNIC) at the second host eliminates a first link between the second host and the second ToR switch, send the network packet to the first ToR switch via an inter-switch link between the first and second ToR switches to cause the first ToR switch to forward the network packet to the second host via a second link between the first ToR switch and the second host.

Abstract: Certain aspects of the present disclosure provide techniques for hybrid modulation and demodulation, which may include multiplexing and demultiplexing different waveform types. An example method includes receiving a time-domain waveform from a transmitting entity and converting the time-domain waveform to a frequency domain. The method also includes identifying a first set of time and frequency resources associated with converted first information and a second set of time and frequency resources associated with second information in time and frequency resources of an orthogonal frequency domain multiplexing (OFDM) resource grid in a time-frequency domain. The method further includes decoding the first set of time and frequency resources to generate first information from the converted first information. For certain aspects, the first information may be precoded with an orthogonal time frequency space (OTFS) modulation.

Abstract: Proposed are a method and apparatus for receiving PPDU in a wireless LAN system. Specifically, a receiving STA receives a PPDU from a transmitting STA via broadband and decodes the PPDU. The broadband is a 320 MHz or 160+160 MHz bandwidth that is not preamble punctured. The PPDU includes a first field and a second field. The first field includes L-LTF. The PPDU includes a first signal field and a second signal field. The first field includes L-LTF. The first field is generated on the basis of one of a first, second, third or fourth phase rotation value. The first phase rotation value is a phase rotation value that obtains PAPR of the L-LTE optimized for the broadband on the basis of a first combination of RFs used for transmitting the PPDU. The first combination of RFs is a combination of 160 MHz-capable RFs or 320 MHz-capable RFs.

Abstract: Disclosed are a method for sending information, a terminal device and a network device. The method for sending information is applied to the terminal device that operates at least in a device-to-device (D2D) communication mode based on a first radio access technology (RAT). The method includes the terminal device sending Radio Resource Control (RRC) information to the network device operating in a second RAT. The RRC information includes service information of D2D communication based on the first RAT.

Abstract: Embodiments of the present disclosure discloses a method and an interoperability system. The present disclosure aims to provide interoperability between SD-WANs of different vendors. The interoperability system uses information from an agent (software or hardware) installed in network terminals such as routers of each SD-WAN to configure control and management plane signals and configures the agent associated with one SD-WAN to share data with agent associated with another SD-WAN. Therefore, the present disclosure helps in interoperability between SD-WANs from different vendors. Hence, operations are efficient, and cost is reduced.

Abstract: This application provides a feedback information sending method and apparatus and a feedback information receiving method and apparatus. A communications device to which the foregoing methods are applied sends or receives feedback information by using different feedback processes. When a network device does not determine whether a previous piece of feedback information is successfully received, the network device indicates a terminal device to send feedback information of a next piece of downlink data by using a new feedback process, and can schedule the next piece of downlink data without waiting for completion of processing of the previous piece of feedback information, thereby reducing a transmission delay.

Abstract: Disclosed are an operating method of a terminal and a base station in a wireless communication system for supporting narrowband internet of things (NB-IoT), and a device for supporting same. According to one embodiment applicable to the present invention, a base station can transmit, to a terminal, a narrowband reference signal (NRS) during a time slot determined on the basis of the position of a paging opportunity (PO) set for the terminal and, in response to the signal, the terminal can assume/determine a time slot in which the NRS is transmitted on the basis of the position of the PO.

Abstract: A method and network node for beamforming a physical downlink shared channel and broadcasting a reference signal, the network node having N antenna elements and M reference signal ports, N being greater than M. A method includes assigning the M reference signal ports to M antenna elements of the N antenna elements. A reference signal is transmitted using the M antenna elements, the M antenna elements used to form a first beam sufficiently broad to broadcast the reference signal over a geographical area sized to support a plurality of wireless devices (WDs). A precoding matrix indicator is received from a first WD of the plurality of WDs, using the N antenna elements, signals received at the N antenna elements being weighted to form a second beam sufficiently narrow to enable spatial selection of the first WD of the plurality of WDs by the network node.

Abstract: Embodiments of this application relate to the field of communications technologies, and in particular, to a cell configuration method and apparatus, to reduce signaling exchange in a cell migration process and improve cell migration efficiency. The cell configuration method includes: A first management function unit obtains a first message, where the first message includes information about a first cell and information about a first base station, the information about the first cell includes at least one of an identifier of the first cell or a managed object identifier of the first cell, and the information about the first base station includes at least one of an identifier of the first base station or a managed object identifier of the first base station; and the first management function unit configures a relationship between the first cell and the first base station based on the first message.

Abstract: Embodiments of the invention provide efficient ways to transmit Broadcast, unknown Unicast, or Multicast (BUM) traffic for multiple Ethernet Virtual Private Network (EVPN) Instances (EVIs). In one embodiment, a method is performed by a network device, the method comprises identifying a plurality of sets of network devices, each set of network devices to include network devices belonging to one Ethernet Virtual Private Network (EVPN) Instance (EVI) of a plurality of EVIs, for which the network device serves as an ingress network device; selecting an aggregation set of network devices from the identified network devices to set up an aggregation tunnel label switched path (LSP) for multiple EVIs of the plurality of EVIs; and transmitting broadcast, unknown unicast, or multicast (BUM) traffic for the multiple EVIs using the aggregation tunnel LSP.

Abstract: The present disclosure relates to a method and apparatus for performing communication in a wireless communication system. A user equipment (UE) may receive, from a base station, at least one of secondary cell (SCell) configuration information, channel state measurement configuration information, and timer configuration information used for discontinuous reception (DRX), measure a channel state based on the received configuration information, and transmit information about the measured channel state to the base station.

Abstract: A terminal connection method includes that: a first terminal sends a first message to a second terminal, the first message including a first access layer configuration parameter, and the first access layer configuration parameter being used by the second terminal to configure a parameter of an access layer to communicate with the first terminal.

Abstract: This disclosure describes techniques that include selecting a member port of an aggregation bundle by evaluating utilization of paths, within a router, to member ports of an aggregation bundle. In one example, this disclosure describes a method that includes receiving network data to be output through an aggregation bundle having a plurality of member ports; identifying local member ports; identifying non-local member ports, each of the non-local member ports being reachable from the receiving line card over a path through the switch fabric to a different one of the plurality of line cards; identifying available non-local member ports by determining, for each non-local member port, whether the path through the switch fabric has low utilization; and selecting a member port by applying a hashing algorithm to a group that includes each of the identified available non-local member ports.

Abstract: A reverse path forwarding (RPF) check method includes, after receiving a multicast data packet from a head node, a tail node may obtain a multicast source address, a multicast group address and encapsulation information that are carried in the multicast data packet. The tail node obtains, based on the multicast source address, the multicast group address, and a first correspondence, a first identifier identifying an upstream multicast hop (UMH) node corresponding to the multicast data packet. The tail node may further obtain, based on the encapsulation information of the multicast data packet and a second correspondence, a second identifier identifying the head node corresponding to the multicast data packet. After obtaining the first identifier and the second identifier, the tail node may perform an RPF check based on the first identifier and the second identifier.

Abstract: A system for layer-2 path tracing is provided. During operation, the system can send, from an originating device, a layer-2 trace packet with a packet type in a layer-2 header of the layer-2 trace packet. The packet type can indicate the trace packet to be a tracing packet. The system can then receive a layer-2 response packet from a respective participating device, which supports layer-2 path tracing, on a path to a target device of the trace packet. Subsequently, the system can obtain, from a payload of the response packet, trace information of a forward path to the participating device traversed by the trace packet and a reverse path from the participating device traversed by the response packet. The trace information can identify one or more layer-2 devices along the forward and reverse paths, and include one or more layer-2 identifiers corresponding to the identified one or more layer-2 devices.

Abstract: The present disclosure provides a method and device for random access. The method includes: a termina receives physical random access channel (PRACH) configuration information from a base station of the unlicensed band, where the PRACH configuration information indicates a first time-domain resource occupied by a PRACH, located after a second time-domain resource occupied by a discovery signal including a synchronization signal block (SSB) and transmitted by the base station to the terminal; the terminal determines, based on the PRACH configuration information, the first time-domain resource occupied by the PRACH; the terminal determines, based on the time interval duration between the first time-domain resource and the second time-domain resource, a target channel access mechanism employed; the terminal performs channel detection according to the target channel access mechanism, and transmits random access information to the base station on the basis of a channel detection result.

Abstract: A device may receive channel data associated with a channel provided between a network and a user device, and may calculate, based on the channel data, key performance indicator data that includes a plurality of key performance indicators for the channel. The device may multiply the plurality of key performance indicators by factors to generate factored key performance indicator data that includes a plurality of factored key performance indicators. The device may apply weights to the plurality of factored key performance indicators of the factored key performance indicator data to generate factored weighted key performance indicator data that includes a plurality of factored weighted key performance indicators. The device may calculate a quality indicator for the channel based on the factored weighted key performance indicator data, and may perform one or more actions based on the quality indicator for the channel.

Abstract: On a control plane or on a user plane of a communication system, a parameter of service quality for a session between a user equipment and a data network is received (S2B01), the parameter is evaluated (S2B02) for a change of the parameter, and based on the evaluation (S2B03), the change of the parameter is reported (S2B04) to the control plane of the communication system. On the control plane, the parameter is received (S2A01). The parameter is evaluated (S2A02), and based on the evaluation (S2A03), re-location of a user plane network function is initiated and/or a new user plane network function is inserted (S2A04).

Abstract: A system for establishing and maintaining a communications network includes: one or more programs including instructions for: receiving a first set of data associated with a first set of communication links, the first set of communication links configured to establish connection between devices; receiving a second set of data associated with a second set of communication links; receiving a determination of whether one or more communication links of the first set satisfy a pre-determined quality level; receiving a determination of whether one or more communication links of the second set satisfy the pre-determined quality level; receiving a selection from the one or more communication links of the second set that have been determined to satisfy the pre-determined quality level; and connecting the devices via the selected one or more communication links if one or more communication links of the first set is determined to not satisfy the pre-determined quality level.

Abstract: Embodiments of the present invention disclose a communication method and apparatus. The method includes: After receiving, from a network device, information about K uplink data channels for repeating a data packet for K times and information about a first time domain resource for transmitting first uplink control information UCI, in a case in which the first time domain resource overlaps a first uplink data channel of the K uplink data channels in time domain and the first uplink data channel is overloaded, a terminal device determines a physical resource for transmitting the first UCI, and then sends the first UCI to the network device by using the determined physical resource.