H04L1/002

Systems and methods for enhancing spectral efficiency in a communication network
09742507 · 2017-08-22 · ·

A transmitter implements a method of transmitting data in a network. The transmitter encodes and transmits to a receiver a first transmission utilizing the first MCS level with a first quality level. The first quality level is higher than a prior quality level associated with the prior MCS level. The transmitter receives an indication that the transmission was received at the receiver with an error rate less than a first threshold. The transmitter encodes and transmits to the receiver a second transmission that is longer than the first transmission. The second transmission uses a second MCS level with a second quality level. The second quality level is between the prior quality level and the first quality level. The transmitter receives an indication that the transmission was received at the receiver with an error rate less than a second threshold. The transmitter utilizes the second MCS level to transmit data.

Using new edges for anomaly detection in computer networks

Creation of new edges in a network may be used as an indication of a potential attack on the network. Historical data of a frequency with which nodes in a network create and receive new edges may be analyzed. Baseline models of behavior among the edges in the network may be established based on the analysis of the historical data. A new edge that deviates from a respective baseline model by more than a predetermined threshold during a time window may be detected. The new edge may be flagged as potentially anomalous when the deviation from the respective baseline model is detected. Probabilities for both new and existing edges may be obtained for all edges in a path or other subgraph. The probabilities may then be combined to obtain a score for the path or other subgraph. A threshold may be obtained by calculating an empirical distribution of the scores under historical conditions.

Method and network node for determining channel state information in an upcoming time slot

A method and a network node (110, 111) for determining first channel state information in an upcoming time slot for use by a first radio network node (111) when determining a set of radio transmission parameters for a transmission between the first radio network node (111) and a second radio network node (121) are provided. The network node (110, 111) receives (201) second channel state information for said upcoming time slot. Furthermore, the network node (110, 111) determines (207) third channel state information for said upcoming time slot. The second and third channel state information are at least partly non-overlapping with each other. Next, the network node (110, 111) determines (208) the first channel state information, for said upcoming time slot, based on the second channel state information and the third channel state information.

PATH SCANNING FOR THE DETECTION OF ANOMALOUS SUBGRAPHS AND USE OF DNS REQUESTS AND HOST AGENTS FOR ANOMALY/CHANGE DETECTION AND NETWORK SITUATIONAL AWARENESS

A system, apparatus, computer-readable medium, and computer-implemented method are provided for detecting anomalous behavior in a network. Historical parameters of the network are determined in order to determine normal activity levels. A plurality of paths in the network are enumerated as part of a graph representing the network, where each computing system in the network may be a node in the graph and the sequence of connections between two computing systems may be a directed edge in the graph. A statistical model is applied to the plurality of paths in the graph on a sliding window basis to detect anomalous behavior. Data collected by a Unified Host Collection Agent (UHCA) may also be used to detect anomalous behavior.

Systems and methods for enhancing spectral efficiency in a communication network
09673915 · 2017-06-06 · ·

A method for calibrating rates at which data is transmitted in a communication system. There is a short transmission utilizing a first set of communication parameters comprising first and second communication parameters. The first set of communication parameters are different from the second set of communication parameters used to create stable communication between the transmitter and receiver. The second set of communication parameters comprise first and second communication parameters. Then determining that there are substantially no errors associated with reception of the short transmission by the receiver. Then transmitting a long transmission utilizing a third set of communication parameters comprising first and second communication parameters. The first communication parameter of the third set is equal to the first communication parameter of the first set. The second communication parameter of the third set is equal to the second communication parameter of the second set.

Random Linear Network Encoded Data Transmission From User Equipment
20170118674 · 2017-04-27 ·

For random linear network encoded data transmission from user equipment, a method receives a Galois field and a resource allocation for transmission of data from the user equipment. The method further encodes a first set of k data packets from a first data ensemble into a first random linear network coded (RLNC) packet as a function of the Galois field. The first RLNC packet includes an ensemble number that identifies the first data ensemble, an encoding vector, and a sequence of RLNC sub-packets. In addition, the method generates a first protocol data unit (PDU) that comprises a number of RLNC sub-packets of the first RLNC packet. A size of the first PDU does not exceed the resource allocation.

Channel quality indication with filtered interference
09629013 · 2017-04-18 · ·

A plurality of interference measurements are obtained at a first communication device. The interference measurements correspond to interference experienced by the first communication device. A filter is applied to the plurality of interference measurements to obtain a filtered interference measurement, wherein the filtered interference measurement is a function of a current interference measurement and one or more past interference measurements. A channel quality indicator (CQI) corresponding to a communication channel between the first communication device and a second communication device is determined based at least in part on the filtered interference measurement. The CQI is transmitted from the first communication device to the second communication device.

ICM foot-print with UPOE support

Power Over Ethernet (POE)/universal power over Ethernet (UPoE) may be enabled at multigigabit port-channel connections. This may allow for additional speed support in auto-negotiation messages while employing multigigabit speeds. An integrated connector module (referred to herein as a ICM) compatible with UPoE with a modified local physical layer (PHY) circuit may be capable of supporting multi-gigabit data rates (such as between 1 G to 10 G, e.g., 2.5 G and 5 G) as to not limit the data rates to 1 G. The ICM may provide multi-gig data transmission through a first plurality of pins comprising a multi-gig data pin area. Furthermore, the ICM may provide UPoE power to support the multi-gig transmission through a second plurality of pins comprising a UPoE power pin area.

Path scanning for the detection of anomalous subgraphs and use of DNS requests and host agents for anomaly/change detection and network situational awareness

A system, apparatus, computer-readable medium, and computer-implemented method are provided for detecting anomalous behavior in a network. Historical parameters of the network are determined in order to determine normal activity levels. A plurality of paths in the network are enumerated as part of a graph representing the network, where each computing system in the network may be a node in the graph and the sequence of connections between two computing systems may be a directed edge in the graph. A statistical model is applied to the plurality of paths in the graph on a sliding window basis to detect anomalous behavior. Data collected by a Unified Host Collection Agent (UHCA) may also be used to detect anomalous behavior.

SYSTEMS AND METHODS FOR ENHANCING SPECTRAL EFFICIENCY IN A COMMUNICATION NETWORK
20170026138 · 2017-01-26 ·

A communication system configured to enhance communication spectral efficiency while maintaining an acceptable level of system robustness. Various combinations of modulation, code rate, and antenna usage scheme, are combined to create a hierarchy of modulation and communication schemes (MCS), such that each higher MCS level represents an enhanced degree of spectral efficiency, traded off for a lowered degree of system robustness. Included also are embodiments of methods testing the quality of data transmission and reception at difference MCS levels, and then raising or lowering MCS levels in order to enhance communication spectral efficiency while not falling below the minimally acceptable level of system robustness.