Abstract: Some examples relate to detecting network link failure. In an example, a determination may be made at a first network device on a network regarding an average round-trip delay time (RTD) between the first network device and a second network device over a given time interval during a given period of time. Then, for the given time interval, a keepalive packet may be sent from the first network device to the second network device at the average RTD of the given time interval for a keepalive time. In response to a determination, by the first network device that there is no acknowledgement of the keepalive packet from the second network device during the keepalive time, a network link between the first network device and the second network device may be identified as failed.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive an indication of a demodulation reference signal (DMRS) port to be used by the UE for transmitting a DMRS communication; determine a base sequence based at least in part on the DMRS port; generate a DMRS sequence for the DMRS port based at least in part on the base sequence; and transmit the DMRS communication including the DMRS sequence via the DMRS port. Numerous other aspects are provided.

Abstract: Disclosed in the present application are a method and a device for transmitting PRACH signals in an unauthorized spectrum, used for enhancing channel access for a PRACH signal. The method comprises: before transmitting each candidate resource as configured in resources, a terminal performs LBT detection according to configuration information of a transmission resource for transmitting PRACH signals until a current channel is detected to be idle; and after detecting that the current channel is idle, the terminal transmits a PRACH signal on the corresponding candidate resource. In the present application, a plurality of candidate resources are configured in a transmission resource for transmitting PRACH signals, such that the terminal may transmit the PRACH signals on the corresponding candidate resource when it is detected that the current channel is idle before any candidate resource, thereby improving transmission probability for PRACH signals and enhancing channel access for PRACH signals.

Abstract: An information notification device which transfers to a communication device a packet transmitted by a terminal to a relay device. The information notification device is provided with: a communication condition providing unit which provides the packet transmitted by the terminal with communication condition information concerning a communication condition between the terminal and the relay device; a data transmission unit which transmits the packet provided with the communication condition information to the communication device; and a supplementation unit which, in the absence of arrival of the packet from the terminal, implements a notification supplementation process for notifying the communication device of the communication condition information.

Abstract: A method for transmitting a synchronization sequence, and a method and a device for synchronization detection are provided, the method for transmitting the synchronization sequence including: setting a target synchronization sequence with good autocorrelation characteristic, where at least one segment of sequence truncated in a time domain or a frequency domain of the target synchronization sequence is a sub-synchronization sequence, and the sub-synchronization sequence has good autocorrelation characteristic and the sub-synchronization sequences have good cross-correlation between each other; and transmitting the target synchronization sequence to a user equipment.

Abstract: Disclosed are an uplink and downlink transmission resource allocation method and device. In this application, a first channel is transmitted on a specified time-frequency resource within a first channel transmitting period according to the first channel transmitting period. The first channel is at least used for notifying allocation information of an uplink transmission resource and a downlink transmission resource within the first channel transmitting period or an effective time period of the first channel, so that dynamic partitioning and notification of the uplink transmission resource and the downlink transmission resource are achieved.

Abstract: Embodiments of an access point (AP), station (STA) and method of communication are generally described herein. The AP may include a used basic service set (BSS) color in a downlink physical layer convergence procedure protocol, data unit (PPDU). The used BSS color may indicate communication between the AP and associated STAs. The AP may detect another PPDU from an STA that is un associated with the AP. If a header portion of the detected PPDU includes the used BSS color, the AP may: determine an alternate BSS color, and transmit a color switch announcement (CSA) element that indicates the alternate BSS color. The CSA element may be configurable to further indicate whether the AP and the associated STAs are to switch, from the operating channel to an alternate channel for the communication.

Abstract: A user equipment transmits a first wireless signal and transmits a second wireless signal; the first wireless signal is generated by a first sequence; the first wireless signal is used to determine a first time interval; the first time interval is a time interval between a first and a second time instant; the first time instant is a starting time instant at which a transmitter of the first wireless signal transmits the first wireless signal; the second time instant is a starting time instant at which a transmitter of the second wireless signal transmits the second wireless signal; the first time instant is earlier than the second time instant; the second wireless signal occupies a first wireless resource; the first wireless resource is one of J candidate wireless resources; the first time interval is used to determine the first wireless resource out of the J candidate wireless resources.

Abstract: Systems and methods described herein enable improve handling of 5G-enabled devices in 4G core networks. The systems and methods described herein provide an enhanced HTTP-based interface between a SMF/PGW-C and a UDM to support interactions required to: (a) perform authorization of PDN access for non-3GPP networks, (b) provide an APN profile to the SMF+PGW-C for the PDN being setup, (c) update the SMF+PGW-C address in the UDM for the PDN being served by non-3GPP networks, and (d) provide operator-specific subscriber parameters from the UDM to the SMF+PGW-C for 3GPP and non-3GPP access.

Abstract: Embodiments of this application provide a synchronization processing method and apparatus, and a device. The method includes: sending, by a network device, a first synchronization signal and a second synchronization signal to a terminal device within a first time unit, where frequencies of first synchronization signals in all beams are the same, and each beam has a different difference between the frequency of the first synchronization signal and a frequency of the second synchronization signal; and determining, by the terminal device, an optimal transmit beam of the network device for the terminal device and a time sequence of the optimal transmit beam based on the first synchronization signal and the second synchronization signal. This method effectively reducing synchronization detection complexity of the terminal device.

Abstract: In wireless communications for multi-users, a station may receive a trigger frame including a transmitter address field. When the trigger frame is a multi-user request-to-send (MU-RTS) frame eliciting clear-to-send (CTS) frames from a plurality of stations, the station transmit a CTS frame including a first receiver address field in response to the trigger frame. The first receiver address field may be set equal to the transmitter address field. When the trigger frame elicits data frames from a plurality of stations, the station transmit a data frame including a second receiver address field in response to the trigger frame. The second receiver address field may be set to a destination address. Other methods, apparatus, and computer-readable media are also disclosed.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a channel state information (CSI) reporting configuration for a CSI report, wherein the CSI reporting configuration indicates that the CSI report is to include a layer 1 signal to interference plus noise ratio (L1-SINR); and determine a CSI computation delay requirement for processing the CSI report that is to include the L1-SINR. Numerous other aspects are provided.

Abstract: An apparatus and method are provided for configuring a communication link. Wherein the apparatus has a plurality of antenna elements to support RF communication using a plurality of frequency channels, a plurality of RF processing circuits, and configuration circuitry to apply a selected configuration from a plurality of different configurations, where each configuration identifies which RF processing circuit each antenna element coupled to, and which channel allocated to each RF processing circuit. The configuration circuitry arranged to a reinforcement learning process in order to dynamically alter which of the plurality of different configurations to apply a currently selected configuration. The reinforcement learning process maintaining a future rewards record having a plurality of entries, where each entry maintains, for an associated combination of link state and configuration, an estimated future rewards indication determined using a discounted rewards mechanism.

Abstract: A broadcast receiver control method and apparatus and a mobile terminal are provided. The method includes: acquiring at least one broadcast type that a first application subscribes, during registration, to receive; judging whether the at least one broadcast type includes a preset broadcast type; determining, in response to the judgment that the at least one broadcast type includes the preset broadcast type, the first application as an illegally registered broadcast application; acquiring a receiver queue of a target broadcast; and performing optimal control on the receiver queue according to the determined illegally registered broadcast application.

Abstract: A wireless device is disclosed that can support carrier aggregation uplink (“CAUL”) communication using a single wideband coupler. A single wideband coupler that can operate or support some or all of the communication bands of the wireless device can be used in conjunction with one or more diplexers and/or filters to measure the power of individual communication bands involved in the transmission process. Further, the use of a wideband coupler and switching network to measure the transmit power from the one or more transmit paths or main paths of a wireless device can reduce the size of a transceiver and reduce the insertion loss attributed to the power measurement components compared to systems that use separate measurement systems for each transmit path. The power measurement system may occur in a separate path in electrical connection with the wideband coupler, which may therefore be termed a coupler path.

Abstract: This application relates to a scheduling method and a device. In the scheduling method, a base station sends, at a first moment, uplink grant (UL GRANT) information to a terminal that is to perform uplink data transmission; the base station sends, at a second moment, downlink data to a terminal that is determined by the base station and that is to perform downlink data transmission, where the second moment is a moment at which the terminal that is to perform uplink data transmission sends uplink data after receiving the uplink grant information at the first moment.

Abstract: A first communication device prompts a plurality of second communication devices to transmit, during a contiguous time period reserved for a range measurement exchange, respective first null data packets (NDPs) at respective times. The first communication device receives first NDPs from at least some of the second communication devices during the contiguous time period, and transmits one or more second NDPs to the plurality of second communication devices. The first communication device uses reception of the first NDPs and transmission of the one or more second NDPs to determine respective ranges between the first communication device and respective second communication devices.

Abstract: Embodiments of the present invention provide a method and system for timing related tasks in IoT systems, for example, in relation to synchronisation of clocks and timestamping. It is desirable that the method and system is able to withstand external tampering in a manner which does not jeopardise the accuracy and integrity of time related tasks in the IoT systems.

Abstract: Provided are a method and device for transmitting a packet. According to an example of the method, a Controlling Bridge (CB) device maintains a mapping entry representing a correspondence between a Port Extender (PEX) device and a Media Access Control (MAC) address of a host connected with the PEX device in a mapping table. The CB device receives a first data packet transmitted by a first PEX device, and determines a mapping entry in which the MAC address of the host matches a destination MAC address of the first data packet by querying the mapping table. Then, the CB device transmits the first data packet to a second PEX device in the mapping entry.

Abstract: Source routing techniques include sending data across several networks, while limiting source routing overhead. For example, the source routing techniques may use a first address format to route data to nodes along a routing path that are within a first network where a source node is located, and use a second address format to route the data to a node along the routing path that is within a second, different network. The node in the second network may similarly route the data through the second network using the first address format for nodes within the second network and, if needed, route the data to a node within a third network using the second address format. This may be repeated for any number of networks to reach a destination.