Abstract: UE (50) includes a mapping information retaining unit (57) that retains association information in which a type of EPS bearer configured in 4G and a type of QoS flow that corresponds to the service quality and is configured in 5G are associated, and a handover executing unit (59) that acquires, by using the association information, association between the EPS bearer configured by the UE (50) and the QoS flow configured by the UE (50), and executes handover between the EPS bearer and the QoS flow associated with each other.

Abstract: A base station apparatus that communicates with a user apparatus is provided. The base station apparatus includes: a setting unit configured to arrange in a radio frame one or more blocks and information, the one or more blocks including information used for initial access, the information specifying resources that are associated with the blocks and are used for transmitting preambles; a transmission unit configured to transmit the radio frame to the user apparatus; and a reception unit configured to receive the preambles from the user apparatus via the resources. The information specifying the resource is set based on locations of the blocks arranged in the radio frame.

Abstract: There is provided mechanisms for downlink scheduling of terminal devices. A method is performed by a network node. The method comprises obtaining user-specific delay and user-specific channel conditions per scheduling opportunity for each of the terminal devices to be scheduled. The method comprises scheduling, in each scheduling opportunity, the terminal devices according to an order. The order is determined by individually weighting the user-specific delay and individually weighting the user-specific channel conditions for each terminal device to be scheduled.

Abstract: To realize real-time estimation when estimating the type and state of an application from time-series data of communication traffic. A communication traffic analyzing apparatus of the present invention has a state transition model generating unit configured to generate a probabilistic state transition model from time-series data of communication traffic, at each predetermined timing, a state transition model update unit configured to update a state transition model when a difference between the state transition models at two timings generated by the state transition model generating unit is greater than or equal to a predetermined difference and a communication state of network satisfies a predetermined condition, and an application type and state estimating unit configured to estimate a type and a state of an application using the updated state transition model.

Abstract: Apparatus and methods to support IP flow mobility (IFOM) via multiple wireless accesses in a wireless device are disclosed. The wireless device initiates network-based IFOM (NB-IFOM) to establish and manage IP flows. Support for NB-IFOM is negotiated during initial attach procedures to either or both wireless accesses and by using packet data network (PDN) connectivity procedures. The wireless device sends routing rules including priorities to apply to both existing and future IP flows or to future IP flows only. The wireless device requests to move IP flows from a source access to a target access. When a new wireless access is added to an existing PDN connection, an identical IP address for the wireless device is allocated as used for the existing PDN connection. The network establishes a GPRS tunneling protocol (GTP) tunnel for the new wireless access while maintaining a previously established GTP tunnel for the existing wireless access.

Abstract: Embodiments are directed to monitoring network traffic using network monitoring computers (NMCs). Two or more network segments coupled by bridge devices may be monitored by NMCs. The bridge devices may modify network traffic passed from one network segment to another network segment. Flows in network segments may be determined based on monitored network traffic associated with the network segments. Other flows in other network segments may be determined based on other monitored network traffic associated with the other network segments. A correlation score for two or more flows in different network segments may be provided based on a correlation model. Two or more related flows may be determined based on a value of the correlation score of the two or more related flows located in different network segments. A report that includes information about the two or more related flows may be provided.

Abstract: Wavelength-based random access in an optical communications network for a wireless communications system (WCS) is disclosed. An optical network unit(s) (ONU(s)) is configured to generate a random access signal comprising an unsolicited buffer occupancy (BO) report to request uplink allocation as soon as the ONU(s) receives a non-periodic uplink data burst. The ONU(s) then sends an optical random access signal including the unsolicited BO report to an optical line terminator (OLT) based on a random access wavelength, which is so determined not to cause any interference with a downlink optical communications signal(s) and an uplink optical communications signal(s) being regularly communicated between the OLT and the ONU(s). As a result, it is possible to reduce access delay at the ONU(s) for sending the non-periodic uplink data burst without requiring frequent polling from the OLT, thus helping to reduce signaling overhead and improve throughput of the optical communications network.

Abstract: A method in a rate adaptive system includes categorizing, by an encoder, a plurality of clusters of data in a segmented image into one of a plurality of categories corresponding to a different predetermined label with a predetermined priority level; vectorizing, by the encoder, the data to generate a sparse vector xi for its corresponding label; encoding, by the encoder, a plurality of the sparse vectors xi by multiplying a measurement matrix Ai(t) with the sparse vector xi to generate a set of encoded information yi; transmitting, by the encoder to the decoder, the plurality of sets of the encoded information yi in a prioritized order; decoding, by the decoder, the plurality of sets of encoded information yi to determine the plurality of the sparse vectors xi based on determining measurement matrix Ai(t); and uniting the plurality of the sparse vectors xi into a single image frame.

Abstract: An intermediate IAB node may determine whether congestion data satisfies a first threshold and may provide the congestion data to a parent IAB node when the congestion data satisfies the first threshold to cause the parent IAB node to apply local congestion control.

Abstract: A cell site router communicatively coupled to an access node and configured to transmit data between the access node and an external network is further configured to determine a packet loss occurring at a port of the cell site router and adjust a size of a buffer of the cell site router based on the packet loss. The buffer can be associated with the port and/or a RAT associated with the port, and a latency requirement of the data transmission can be considered when adjusting buffer sizes.

Abstract: A wireless device determines whether a data session is performance sensitive, and in response to the data session being performance sensitive, selects a data transport node (DTN) and performs the data session using the selected DTN. Whether a data session is performance sensitive may be determined using information on a process associated with the data session, by monitoring the data session, or both. The DTN may be selected from a list of available DTNs according to which DTN will probably provide the highest performance for the data session, or according to which DTN or DTNs will probably provide adequate performance. Micro speed tests, historical performance information, or other criteria may be used to predict the performance of the available DTNs. When multiple DTNs satisfy the selection criteria, a “good neighbor” policy may be used to select the DTN.

Abstract: A system for managing compositions of software components or applications is disclosed. In particular, systems in which the software components or applications communicate with one another using message-oriented middleware are considered. The system is fed by one or more data feeds, and produces a plurality of processed feeds for respective applications. The data items in the input data feeds are processed by the software components or applications which form a data feed processing graph, with each application having a processing path (or egress-rooted tree) which results in the processed feed for that application. Managing such systems is complex. This complexity is tackled by having each component processing a data feed item add an annotation to the data feed item, so that the cumulative annotation which is seen in the processed feed for an application provides a history of the processing carried out on the input data feed(s).

Abstract: An example client device includes processing circuitry and a memory including instructions that, when executed by the processing circuitry, cause the client device to undertake certain actions. Certain instructions cause the device to periodically measure active network performance data for a network, calculate expected rewards for the plurality of entry points, select an expected best entry point based on the expected rewards, route data to the selected entry point, measure passive network performance data for the selected entry point, and update a reinforcement learning algorithm, based in part on the measured passive network performance data.

Abstract: A system described herein may provide for the separation of functions associated with a User Plane Function (“UPF”) in a wireless network (e.g., a Fifth Generation (“5G”) network), such that routing devices associated with the wireless network may perform functionality that would otherwise be performed by virtualized hosts or other configurable resources. For example, routing components which form a backhaul or other portion of the network may process traffic according to a suitable set of policies (e.g., Quality of Service (“QoS”) policies, content filtering policies, queueing policies, and/or other policies) instead of transmitting such traffic to a UPF associated with the network core for processing.

Abstract: According to an aspect, an in-vehicle communication device includes a transmitter configured to transmit own vehicle notification information generated by an own vehicle to a nearby area, a receiver configured to receive other vehicle notification information transmitted by each of one or more other vehicles, a storage device storing a program; and a hardware processor. The hardware processor executes the program stored in the storage device to determine the other vehicle which is to communicate with the own vehicle based on one or both of the own vehicle notification information transmitted by the transmitter and the other vehicle notification information received by the receiver. The own vehicle notification information includes identification information of the own vehicle and indicator values associated with communication with the one or more other vehicles acquired by the own vehicle.

Abstract: At an Edge Node, a method of handling data packets in order to mark the packets with respective packet values indicative of a level of importance. The method comprises implementing a variable rate token bucket to determine an estimated arrival rate of a flow of packets. The method comprises receiving a data packet, updating the estimated arrival rate to an updated arrival rate based on a token level of the token bucket and generating a random or pseudo-random number within a range with a limit determined by the updated arrival rate. The method further comprises identifying an operator policy which determines a level of service associated with the flow of packets, and a Throughput Value Function (TVF) associated with said policy, and then applying the TVF to the random number to calculate a packet value. The packet value is included in a header of the packet.

Abstract: A method for determining an uplink scheduling manner, a user equipment and a base station are disclosed. A method for determining an uplink scheduling manner performed by a user equipment includes: determining a communication parameter regarding the user equipment; determining, based on the communication parameter and a threshold regarding the communication parameter, to perform uplink data transmission based on an uplink grant based scheduling manner, or to perform the uplink data transmission based on an uplink grant free scheduling manner.

Abstract: Described herein are systems, methods, and software to manage maximum segment size (MSS) values associated with multiple tunnels according to an implementation. In one implementation, a gateway may obtain a Transmission Control Protocol (TCP) synchronize (SYN) packet from a computing node. The gateway may identify a tunnel associated with the TCP SYN packet, determine a maximum segment size (MSS) value based on the overhead associated with the tunnel, and replace a first MSS value in the TCP SYN packet with the MSS value determined by the gateway. Once added, the gateway may encapsulate the TCP SYN packet and communicate the packet to a second gateway.

Abstract: Identifying data quality along a data flow. A method includes identifying quality metadata for two or more datasets. The quality metadata defines one or more of quality of a data source, accuracy of a dataset, completeness of a dataset, freshness of a dataset, or relevance of a dataset. At least some of the metadata is based on results of operations along a data flow. Based on the metadata, the method includes creating one or more quality indexes for the datasets. The one or more quality indexes include a characterization of quality of two or more datasets.

Abstract: A method and an apparatus for time slot multiplexing, and a communication device. At least one multiplexing node group in a subnet of a TDMA communication system may be determined according to a connection relationship among all nodes in the subnet, where a shortest communication link between every two nodes in each multiplexing node group includes at least the preset quantity of nodes, the preset quantity of nodes includes the two nodes, and the preset quantity is no less than 4. For each multiplexing node group, a multiplexing time slot allocated to the multiplexing node group is determined, and each node in the multiplexing node group is controlled to transmit data in the multiplexing time slot. The time slots can be shared by the nodes in the multiplexing node group, and therefore multiple nodes can transmit data in the multiplexing time slot.

Abstract: Systems and methods for MME adaptive selection are described. The method includes: initializing a health checkup algorithm at an eNodeB for each MME connected to as per configuration values; starting a health check timer for each MME; continuing with an Initial Attach procedure for incoming calls based on SAE-Temporary Mobile Subscriber Id (S-TMSI), (Globally Unique MME Identifier) GUMMEI, or capacity/load balancing considerations; on every UE attach attempt, incrementing a total calls count; and on every S1 AP Error Indication/no response from an ME, incrementing a total fail calls count; determining when the health check timer for an MME expires; calculating a failed calls/total calls percentage value. Based on the value of the timer, appropriate action is taken.

Abstract: A method and system identify a congestion parameter for multiple ports of a cell site router (CSR) and determine a characteristic of a wireless device communicating using the CSR. The method and system further assign the wireless device to a port of the CSR based on the characteristic of the wireless device and the congestion parameter. The method and system have the effect of assigning wireless devices having more capabilities to ports having the most congestion as the more capable devices are more likely to have sufficient retransmission power in the event of congestion.

Abstract: In some implementations, a method includes conducting, by a network device, a query associated with a network function chain comprising a plurality of switches and middleboxes to verify whether a service performed by the network function chain complies with a Service Level Agreement (SLA); computing, by the network device, based on a result of the query, a difference in metric value between an actual performance metric of a packet passing through a path in the network function chain and an expected performance metric of the packet passing through the path; deriving, by the network device, a probability of SLA violation associated with the path based on the difference in metric value; and selectively monitoring, by the network device, a network of network function chains by monitoring the path for passive performance measurements based on the probability of SLA violation.

Abstract: A flow control method and system, and a device are provided to implement flow control in a process of transmitting a media stream between devices. The method includes: receiving, by a first device, a media stream that is sent by a second device at a first rate; instructing based on a rate of a media stream in a first time period in which a buffer usage rises from a first threshold to a second threshold, the second device to send a media stream to the first device at a second rate which is less than the first rate; instructing based on a rate of a media stream in a second time period in which the buffer usage rises from the second threshold to a third threshold, the second device to send a media stream to the first device at a third rate which is not greater than the second rate.

Abstract: A method and apparatus of a network element that processes a packet in the network element is described. In an exemplary embodiment, the network element receives a data packet that includes a destination address. The network element receives a packet, with a packet switch unit, wherein the packet was received by the network element on an ingress interface. The network element further determines if the packet is to be stored in an external queue. In addition, the network element identifies the external queue for the packet based on one or more characteristics of the packet. The network element additionally forwards the packet to a packet storage unit, wherein the packet storage unit includes storage for the external queue. Furthermore, the network element receives the packet from the packet storage unit and forwards the packet to an egress interface corresponding to the external queue.

Abstract: A method for processing data packets in a communication network includes establishing a path for a flow of the data packets through the communication network. At a node along the path having a plurality of aggregated ports, a port is selected from among the plurality to serve as part of the path. A label is chosen responsively to the selected port. The label is attached to the data packets in the flow at a point on the path upstream from the node. Upon receiving the data packets at the node, the data packets are switched through the selected port responsively to the label.

Abstract: Energy consumption of cellular interfaces on multihomed mobile devices, such as smartphones, tablets and laptops can be improved by adjusting the inactivity timer of the cellular interface of the mobile devices based on the on/off status of non-cellular interface(s) on the mobile devices. Possible near-future data packets can be transmitted or received on the non-cellular interfaces that co-exist on the mobile devices and thus the inactivity timer of the cellular interface may be dynamically and more efficiently adjusted, based on the on/off status of non-cellular interface(s). If the non-cellular interface is available on the mobile device, then the inactivity timer can be set to be shorter than if only the cellular interface is available.

Abstract: In an example, a method comprises, by a computing device, in response to receiving an indication of a modified network topology for a segment routing (SR)-enabled network comprising one or more network nodes: determining whether an existing, first multipath in the modified network topology for the network satisfies a path computation deviation for a SR policy, wherein the path computation deviation is a deviation from an initial path computation constraint for the SR policy; when the first multipath in the modified network topology satisfies the path computation deviation for the SR policy, performing a recomputation policy action that is associated with the path computation deviation; and when the first multipath in the modified network topology does not satisfy the path computation deviation for the SR policy, computing a second multipath in the modified network topology for the network to satisfy the initial path computation constraint for the SR policy.

Abstract: A network element is configured to efficiently load balance packets through a computer network. The network element receives a packet associated with flow attributes and generates a Load Balancing Flow Vector (LBFV) from the flow attributes. The network element partitions the LBFV into a plurality of LBFV blocks and reorders the LBFV blocks to generate a reordered LBFV. The LBFV blocks are reordered based on a reordering sequence that is different from reordering sequences on other network elements in the computer network. The network element hashes the reordered LBFV to generate a hash key for the packet and selects a next hop link based on the hash key. The next hop link connects the network elements to a next hop network element in the computer network.

Abstract: A network traffic monitoring process of a communications network including: receiving data packets from a software-defined networking (SDN) flow switch; processing header of the received packets to identify its subsets belonging to respective network flows; detecting large network flows by determining a corresponding cumulative amount of data contained in the received packets for each of the network flow until it reaches or exceeds a predetermined threshold amount of data; for each detected large network flow, sending flow identification data to the SDN flow switch to identify further packets of the large network flow and to stop sending them to the network traffic monitoring component; periodically receiving from the SDN flow switch and processing the corresponding counter data and corresponding timestamp data to generate temporal metrics of the large network flow; and processing the generated temporal metrics with a trained classifier to classify the large network flow.

Abstract: A novel method of operating a Distributed Cable Modem Termination System is provided. Each branch CMTS node in a distributed CMTS supports a complete CMTS system and with full-spectrum ports. One or more MAC domains are defined at each branch CMTS node. A MAC domain defined at a branch CMTS node includes only service flows of the CMs that are connected to the branch CMTS node. Identifiers of service flows coming from a branch CMTS node are always unique, i.e., two different service flows of the branch CMTS would always have different SIDs, even if they belong to different MAC domains. On the other hand, service flows belonging to different branch CMTS nodes are free to reuse the same identifiers.

Abstract: Methods, systems, and devices for wireless communications are described. In some systems, a user equipment (UE) may perform a dual active link handover procedure from a source base station to a target base station. During the dual active link handover procedure, the UE may have connections to both of the base stations concurrently. In such cases, transmission opportunities for communicating with the base stations may conflict. To handle conflicting transmission opportunities, the UE may drop a monitoring occasion or a packet reception for a base station based on prioritization rules. In some cases, to mitigate packet losses, the base station may configure re-transmissions or slot aggregation to provide the UE with additional opportunities to receive a packet. Additionally or alternatively, the UE may transmit a notification message to a base station indicating dropped monitoring occasions or packets.

Abstract: Systems and methods dynamically adapt network policies for mobile devices by accessing context-based values to allocate or restrict capabilities on the mobile devices or within the network. Context-based values may include position or velocity as well as more general environment features such as proximity of other devices, the presence or absence of other wireless signals or network traffic, parameters measured by local or remote sensors, user credentials, or unique user or signal inputs to the device. Relevant capabilities may include access to hardware and software interfaces and related parameter sets including priority settings.

Abstract: In a measurement system including a first transfer apparatus provided at a packet receiving edge of one network, a second transfer apparatus provided at a packet sending edge of the one network, and a measurement apparatus configured to receive a packet, the first transfer apparatus adds received time of the packet to the packet and transmits the packet, the second transfer apparatus receives the packet, adds sending time and a signature specific to the one network to the packet, and transmits the packet to which the received time, the sending time, and the signature are added, and the measurement apparatus receives the packet, and calculates a difference between the sending time and the received time to measure latency in the one network.

Abstract: Methods may be provided to operate a wireless terminal in communication with a base station. Such methods may include receiving a Radio Resource Control RRC message from the base station, wherein the RRC message includes information regarding at least one Quality of Service, QoS, flow being reflective and/or non-reflective. Such methods may also include providing communication of a data packet between the wireless terminal and the base station using a non-reflective QoS flow, wherein the data packet includes a data field and a Service Data Application Protocol SDAP header field with a QoS Flow Identity QFI, and wherein the QFI is used for the data packet based on the information from the RRC message. Methods of operating base stations and core network nodes may also be provided. Related wireless terminals, base stations, and core network nodes are also discussed.

Abstract: Disclosed herein are systems and methods for facilitating data transmission using a decentralized consensus network. The system comprising: a verified and decentralized consensus network comprising a plurality of node, wherein at least one of the nodes is configured to: (a) determine a target node from the plurality of nodes to be verified; verify the target node by validating a geographic location of the target node or a time of the target node; and (c) receive a token for verifying and validating the target node.

Abstract: The present disclosure relates to information sending methods, information receiving methods, and devices. One example information sending method includes receiving, by a terminal device, a first transport block size (TBS) value from a network device, where the first TBS value is included in a second TBS set, the second TBS set includes N TBSs values, and N is a positive integer greater than 1, determining, by the terminal device, a third TBS set based on the first TBS value, where a largest TBS value in the third TBS set is less than or equal to the first TBS value, selecting, by the terminal device, a TBS value from the third TBS set, and sending uplink information based on the selected TBS value.

Abstract: A method for data transmission, a method for parameter optimization, an apparatus, and a device are provided. The method for data transmission includes: initiating, by user equipment UE, a random access request or a resource request to a network device; recording, by the UE, random access failure information or resource request failure information; and when detecting that the UE has successfully accessed the network device, sending the random access failure information or the resource request failure information to the network device, so that the network device sends the random access failure information or the resource request failure information to a network management device for parameter optimization processing.

Abstract: Some embodiments provide a method for processing a packet for a pipeline of a hardware switch. The pipeline, in some embodiments, includes several different stages that match against packet header fields and modify packet header fields. The method receives a packet that includes a set of packet headers. The method then populates, for each packet header in the set of packet headers, (i) a first set of registers with packet header field values of the packet header that are used in the pipeline, and (ii) a second set of registers with packet header field values of the packet header that are not used in the pipeline.

Abstract: In one embodiment, a service in a network computes an expected information gain associated with rerouting traffic from a first tunnel onto a backup tunnel in the network. The service initiates, based on the expected information gain, rerouting of the traffic from the first tunnel onto the backup tunnel. The service obtains performance measurements for the traffic rerouted onto the backup tunnel. The service uses the performance measurements to train a machine learning model to predict whether rerouting traffic from the first tunnel onto the backup tunnel will satisfy a service level agreement (SLA) of the traffic.

Abstract: Multi-layer partitioned timed media data comprising timed samples is encapsulated. Each timed sample is encoded into a first layer and at least one second layer, at least one timed sample comprising at least one subsample, each subsample being encoded into the first layer or the at least one second layer. The method includes obtaining at least one subsample, belonging to said first layer, from at least one of the timed samples; creating a first track comprising the at least one obtained subsample; obtaining at least another subsample, belonging to said second layer, from the same one of the timed samples; creating a second track comprising said at least another obtained subsample; and generating descriptive metadata associated with the second track.

Abstract: A first packet forwarding plane (PFE) of a network device may receive a packet and may perform a first lookup for the packet. The first PFE may provide the packet to a service plane based on the first lookup. The service plane may apply a service to the packet and may provide the packet to the first PFE. The first PFE may perform a second lookup. The first PFE may provide the packet to a second PFE of the network device based on the second lookup and may store flow information associated with the packet and second PFE information in a table. The network device may provide the flow information and the second PFE information from the table to the service plane to cause the service plane to send subsequent packets directly to the second PFE thereby saving fabric, memory, and processing bandwidth and improving overall network performance.

Abstract: Computer networks are widely used, whereby in a lot of networks audio and/or media devices are integrated. It is a Computer network 1 suggested, comprising a number of devices D. #1. #2 and at least one media node M1, M2, M3, M4, wherein each of the devices D. #1. #2 comprises at least one network port 2, wherein the devices D. #1. #2 are interconnected with the network by network links 3, each link connecting two respective network ports 2, wherein the network ports 2 are adopted to nm a physical network discovery protocol, wherein the media node M1, M2, M3, M4 comprises a media network port 5, wherein the media node M1, M2, M3, M4 is interconnected with one of the devices D. #1. #2 by the network links 3, wherein the network link 3 connects the media network port 5 and the network port 2 of the device D. #1. #2, wherein the media node M1, M2, M3, M4 is adopted to run a media station support communication protocol and to provide media node information.

Abstract: In response to detecting the failure of a data storage drive, a drive rebuild operation is performed. The drive rebuild operation is performed by periodically i) calculating a target rebuild rate that enables data previously stored on the failed data storage drive to be completely rebuilt on at least one other data storage drive within an expected drive rebuild time window, ii) calculating a new value for at least one drive rebuild parameter based on a value for the drive rebuild parameter corresponding to the target rebuild rate indicated by a static rebuild rate data structure and a current level of host I/O (Input/Output) activity, and iii) rebuilding the data previously stored on the failed data storage drive on the at least one other data storage drive for a predetermined time period with the at least one drive rebuild parameter set to the new value for the drive rebuild parameter.

Abstract: Disclosed herein is a method of operation of a wireless device to provide service gap control in a wireless communication system, comprising: receiving a service gap parameter from a network entity in a mobility management sublayer non-access stratum message, the service gap parameter being indicative of a value for a service gap timer for the wireless device; and enforcing the service gap parameter at the wireless device in a non-access stratum layer. Also disclosed herein is a method of operation of a core network entity in a core network of a wireless communication system to provide service gap control, comprising: obtaining a service gap parameter for a wireless device, the service gap parameter being indicative of a value for a service gap timer for the wireless device; and sending the service gap parameter to the wireless device via a mobility management sublayer non-access stratum message.

Abstract: A network device includes a transmit buffer from which data is transmitted to a network, and a packet buffer from which data chunks are transmitted to the transmit buffer in response to read requests. The packet buffer has a maximum read latency from receipt of a read request to transmission of a responsive data chunk, and receives read requests including a read request for a first data chunk of a network packet and a plurality of additional read requests for additional data chunks of the network packet. A latency timer monitors elapsed time from receipt of the first read request, and outputs a latency signal when the elapsed time reaches the first maximum read latency. Transmission logic waits until the elapsed time equals the first maximum read latency, and then transmits the first data chunk from the transmit buffer, without regard to a fill level of the transmit buffer.

Abstract: This document discloses a solution for preamble detection. According to an aspect, a method comprises: transmitting a message to a first terminal device connected to an access node, the message instructing the terminal device to carry out a random access procedure towards the access node; receiving a signal from the first terminal device during the random access procedure, the signal comprising a random access preamble; using the received signal as a training input in a random access preamble detection process; and using the random access preamble detection process trained with the training input in detection of a random access preamble from a second terminal device not connected to the access node.

Abstract: In one embodiment, a device executes a segment of machine code for an application in a write-protected memory of the device. The executed segment of machine code includes instrumentation instructions that capture a performance measurement for the application. The device changes the write-protected memory of the device to be writable. The device overwrites a first instruction at an anchor location in the segment of machine code in the writable memory of the device with a second instruction. The device re-executes the segment of machine code with the second instruction, wherein the second instruction disables execution of the instrumentation instructions.

Abstract: Techniques for internet last-mile outage detection are disclosed herein. The techniques include methods for monitoring, by a network appliance associated with a network, a plurality of network nodes, detecting, by the network appliance, that a network node of the plurality of network nodes in a last mile of the network has disconnected from the network, overlaying, by the network appliance, the network node over a network model for at least a portion of the network including the network node to generate a model overlay, and determining, by the network appliance, a last mile outage source associated with a disconnection of the network node by identifying a lowest common ancestor node of the network node from the model overlay. Systems and computer-readable media are also provided.

Abstract: Techniques based on the Theory of Bottleneck Ordering can reveal the bottleneck structure of a network, and the Theory of Flow ordering can take advantage of the revealed bottleneck structure to manage and configure network flows so as to improve the overall network performance. These two techniques provide insights into the inherent topological properties of a network at least in three areas: (1) identification of the regions of influence of each bottleneck; (2) the order in which bottlenecks (and flows traversing them) may converge to their steady state transmission rates in distributed congestion control algorithms; and (3) the design of optimized traffic engineering policies.