Abstract: A network path optimization method includes: in response to a network access request, computing and sending an optimal path having a path code and carrying a path parameter; adding a path tag to the optimal path based on a real path; determining a parameter variation between the optimal path and the real path based on the path parameter and the path tag; and updating the optimal path and the path parameter based on the parameter variation.

Abstract: A method includes determining a transmission path. The method includes determining, by a first node, a first candidate path group that includes at least one first candidate path. when the first candidate path group includes at least two first candidate paths, The method further includes selecting a first path from the at least one first candidate path according to a preset first rule based on node information of each of the first candidate paths in the first candidate path group. The method further includes determining that the first path is a transmission path and when a source node of the first path is the first node, or determining that the second path is the transmission path when the source node of the first path is a second node, where the second path is a reverse path of the first path.

Abstract: A communications system is provided, comprising one or more infrastructure equipment forming part of a wireless communications network, and a communications device. The communications device is configured to transmit or receive signals via a wireless access interface provided by the wireless communications network to or from a peer terminal in the wireless communications network with one or more pre-authorised quality of service, PAQ, flows, at least one of the PAQ flows currently being inactive. One or more of the infrastructure equipment are configured to receive an indication that the communications device is preparing to transmit or receive data with the PAQ flows to or from the one or more of the infrastructure equipment.

Abstract: The disclosure relates to a cancellation device for cancelling interference caused by a non-linear device, the cancellation device comprising: an adaptive filter coupled in parallel to the non-linear device, wherein the adaptive filter is configured to filter an input signal of the non-linear device to generate an approximation signal approximating an output signal of the non-linear device; an error signal generator configured to generate an error signal based on a function of the output signal and the approximation signal; and a controller configured to adjust the adaptive filter based on the error signal and a phase and magnitude relation of the output signal and the input signal.

Abstract: A method and system for flexible resource control for a wireless transmit/receive unit (WTRU) is disclosed. The WTRU may monitor a first control channel region and receive a first control channel transmission in the first control region indicating boundaries of a plurality of numerology blocks of a carrier. The WTRU may then receive a second control channel transmission in a second control channel of a second control region, wherein the second control channel transmission indicates one or more numerology parameters for at least one of the plurality of numerology blocks. The WTRU may then transmit or receive data based on the one or more numerology parameters of the one or more numerology blocks.

Abstract: A method for communicating data between a base station and a terminal device in a wireless telecommunications system, for example an LTE-based system. The wireless communication system uses plural frequency sub-carriers spanning a system frequency band. Physical-layer control information for the terminal device is transmitted from the base station using sub-carriers selected from across the system frequency band, for example to provide frequency diversity. However, higher-layer data for the terminal device is transmitted using only sub-carriers selected from within a restricted frequency band which is smaller than and within the system frequency band. The terminal device is aware of the restricted frequency band, and as such need only buffer and process data within this restricted frequency band during periods where higher-layer data is being transmitted. The terminal device buffers and processes the full system frequency band during periods when physical-layer control information is transmitted.

Abstract: In order to make it possible to report an amount of data from a secondary node (SN) to a master node (MN) in dual connectivity, there is provided a first unit according to the present disclosure which is a first unit of a central unit of a first base station. The first unit includes a controller and a transceiver. The central unit is configured to host at least PDCP layer in the first base station; and is connected to a distributed unit via a first interface, the distributed unit hosting RLC, MAC and PHY layers in the first base station. The controller is configured to host at least a user plane of the PDCP layer hosted by the central unit; and the transceiver is configured to transmit, to a second unit via a second interface, first information indicative of a volume of data processed by the first unit. The second unit is configured to host at least a control plane of the PDCP layer hosted by the central unit.

Abstract: Probe packets are transmitted from a source network to an external network to validate that the external network is accepting network prefix announcements to be loaded into forwarding tables of routers of the external network to ensure network connectivity. The network prefix announcements can be Border Gateway Protocol (BGP) announcements transmitted from the source network to the external network during a BGP peering session. After announcing a network prefix announcement, the source network can transmit a probe packet having a destination address in a range associated with the announced network prefix to the external network. An edge router of the source network can monitor incoming packets using an ingress Access Control List (ACL) to detect whether the probe packet returns, and if so, validate that the network prefix announcement was successful. If the probe packet does not return, an alert can be generated and/or remedial actions can be taken.

Abstract: In aspects of managing FTM frames of WLAN RTT bursts, a device can receive a WLAN RTT burst, such as initiated by a device application, device firmware, or received as a RTT ranging request. The device implements a status module that interposes the routing of the ranging request in the device, and determines a device state of the device with a device state monitor of the status module. The status module is implemented to drop the ranging request if the device is an idle device state such that the ranging request is extraneous. Alternatively, the status module is implemented to reduce a number of FTM frames in the ranging request based on the device state indicating that multiple FTM frames of the ranging request are extraneous, and then route to perform the ranging request of the WLAN RTT burst with the reduced number of FTM frames in the ranging request.

Abstract: Embodiments of the present invention provide a variable bandwidth-based communication method and an apparatus. The method includes: sending, by a network node, indication information to UE, where the indication information is used to indicate a target bandwidth parameter used by a serving cell corresponding to the UE; and communicating, by the network node, with the UE based on the target bandwidth parameter, where the target bandwidth parameter includes at least one of a target bandwidth, a target center frequency, and an enablement time of the target bandwidth. In this way, the network node can communicate with the UE in a changed bandwidth, so as to avoid a case in which communication is still performed in a relatively high bandwidth when a network load is relatively low, and reduce device power consumption.

Abstract: Techniques for satisfying a plurality of service demands in a data communication network are disclosed. Aspects include identifying a first plurality of edges, each of which connects two of a plurality of nodes in the data communication network, wherein each of the first plurality of edges is associated with one of a plurality of unprotected service demands; generating a spanning tree comprising a second plurality of edges selected from the first plurality of edges, wherein the spanning tree connects all of the plurality of nodes that are connected by the first plurality of edges; and creating a set of service links based on the generated spanning tree.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may identify a collision between a first resource for a downlink semi-persistent scheduled communication and a second resource for another downlink signal; and perform an action to mitigate the collision based at least in part on identifying the collision. In some aspects, a user equipment (UE) may identify a collision between a first resource for a downlink semi-persistently scheduled (SPS) communication and a second resource for another downlink signal; and determine an action, to be performed by a base station, to mitigate the collision based at least in part on identifying the collision; and selectively receive the downlink SPS communication or the other downlink signal based at least in part on the determination. Numerous other aspects are provided.

Abstract: A method for predicting a quality of service for a communication between at least two moving communication partners, wherein the prediction is based on at least one link-based quality of service map that is updated in a link-based QoS map generation process. Since classical radio maps are node-based, the classical radio maps are not appropriate for estimating an end-to-end latency for the communication link. The end-to-end latency is needed when determining whether safety critical messages are to be exchanged over this communication link.

Abstract: A system is provided where one of a broadband termination unit or a gateway unit is supplied with power by the other one of the broadband termination unit or the gateway unit. Supplying may be done via a universal serial bus cable like a universal serial bus Type-C cable.

Abstract: A disclosed method may include (1) receiving, via a physical interface of a network device, a hello packet that includes information specific to a fault-detection session established between the physical interface and an additional physical interface of a remote device via a link, (2) identifying, within the information, a plurality of statuses that correspond to a plurality of virtual interfaces partitioned on the additional physical interface of the remote device, (3) determining, based at least in part on the statuses of the virtual interfaces, that the link supporting the fault-detection session established between the physical interface and the additional physical interface has experienced at least a partial failure, and then in response to determining that the link has experienced the at least partial failure, (4) performing a remedial action to address the at least partial failure of the link. Various other apparatuses, systems, and methods are also disclosed.

Abstract: At least one bandwidth-guaranteed segment routing (SR) path through a network is determined by: (a) receiving, as input, a bandwidth demand value; (b) obtaining network information; (c) determining a constrained shortest multipath (CSGi); (d) determining a set of SR segment-list(s) (Si=[sl1i, sl2i . . . slni]) a that are needed to steer traffic over CSGi; and (e) tuning the loadshares in Li, using Si and the per segment-list loadshare (Li=[l1i, l2i . . . lni]), the per segment equal cost multipath (“ECMP”), and the per link residual capacity, such that the bandwidth capacity that can be carried over CSGi is maximized.

Abstract: A data forwarding device belonging to both (1) a segment routing (SR) domain and (2) a label distribution protocol (LDP) domain may be used to perform a method comprising: (a) receiving, by the data forwarding device, information uniquely associated with each of one or more nodes in the LDP domain; (b) associating, for each of the one or more nodes in the LDP domain, a unique SR segment identifier (SID) with the information uniquely associated with the node in the LDP domain, to generate one or more SR SID-to-LDP node associations; and (c) transmitting the one or more SR SID-to-LDP node associations for propagation to at least one other node in the SR domain, whereby the at least one other node in the SR domain will become aware of the one or more nodes in the LDP domain. The SR-LDP border router is aware of all the nodes in SR and LDP domain including the SRGB database (base label, node label, and label range).

Abstract: This disclosure describes enhancements to Ethernet for use in higher performance applications like Storage, HPC, and Ethernet based fabric interconnects. This disclosure provides various mechanisms for lossless fabric enhancements with error-detection and retransmissions to improve link reliability, frame pre-emption to allow higher priority traffic over lower priority traffic, virtual channel support for deadlock avoidance by enhancing Class of service functionality defined in IEEE 802.1Q, a new header format for efficient forwarding/routing in the fabric interconnect and header CRC for reliable cut-through forwarding in the fabric interconnect. The enhancements described herein, when added to standard and/or proprietary Ethernet protocols, broadens the applicability of Ethernet to newer usage models and fabric interconnects that are currently served by alternate fabric technologies like Infiniband, Fibre Channel and/or other proprietary technologies, etc.

Abstract: A spectrum access method and an apparatus utilizing the same. A spectrum management apparatus includes at least one processor configured to: determine location information and antenna angle information of each of at least one secondary apparatus; in response to a request for accessing an idle spectrum of a primary apparatus, determine, according to the location information and the antenna angle information of each of the at least one secondary apparatus, a secondary apparatus to grant access to the idle spectrum; and provide, to a serving base station of each of the secondary apparatuses having the access granted, the location information and the antenna angle information of all of the secondary apparatuses having the access granted, to enable the serving base station to perform interference alignment precoding.

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 a base station and a random access preamble sequence detection method thereof, and a terminal and a random access channel configuration method thereof.