Hughes Network Systems, LLC

Other

Intradigm Corporation

Hughes Networking Systems, LLC

Jun Xu

Robert James Torres

John Leonard Border

Channasandra S Ravishankar

Je-Hong Jong

Satyajit Roy

Sandeep Ahluwalia

Rob Torres

Patrick Stevens

Thomas Jagodits

Chandrasekhar Sangireddi

George Joseph Choquette

Anthony Robert Noerpel

James Jehong Jong

Amit Arora

Patrick Y Lu

Yeqing Tang

Zengquan Fan

Liqing Xiao

Szuyuan Huang

ALexey Razuvaev

Joseph Sanju George

David R Evans

Yash Vasavada

Vivek Gupta

Nagesh Javali

Matthew Baer

Martin Woodle

Yijia Liu

Frank Y Xie

Zili Qian

Harish Ramchandran

Chanasandra Ravishankar

Quinn Q Tang

Maruf Mohammad

Yangang Li

Mike Parr

Pat Stevens

Systems and methods are provided to achieve dynamic bandwidth allocation among terminal groups (TGs) with proportional fairness in terms of both throughput and spectrum usage across a network. Quality of service (QoS) metrics for such TGs can be satisfied in terms of maximum throughput and spectrum utilization, while also satisfying QoS metrics such as latency, throughput, and prioritized traffic services for individual terminals within the TGs. A centralized bandwidth manager can be utilized to manage such dynamic bandwidth allocation across multiple Code Rate Organizers (CROs), including environments in which the multiple CROs manage communications across multiple IPGWs for multiple terminal groups. Because, in such environments, a given conventional CRO cannot effectively manage allocations across the entire network, the centralized bandwidth management functionality can be introduced to assess the flows for multiple TGs across multiple CROs and to make bandwidth allocations accordingly.

Dynamic bandwidth management with spectrum efficiency for logically grouped terminals in a broadband satellite network

A system for scheduling prioritized traffic in a scrambled and coded multiple access (SCMA) system multiple terminals and a gateway. Each terminal is configured to receive packets from user devices and place the packets on various input queues. The packets are en-queued onto a plurality of output queues based on priority or service class. The terminal is further configured to detect one or more available SCMA slots within a frame of a communication system, and de-queue packets from the highest priority output queue onto the frame via one or more SCMA bursts. The terminal includes transceiver for transmitting/receiving frames of the communication system to/from the gateway. The terminals autonomously transmit SCMA bursts relative to each other.

Scheduling prioritized traffic in a scrambled coded multiple access (SCMA) system

Systems and methods are disclosed, and one includes determining a network resource state, based at least in part on a delay level of the network resource, determining a first priority user demand and a second priority user demand for the network resource, and upon the network resource state meeting a condition, adjusting an allocation of network resource bandwidth to the first priority user and an allocation of network resource bandwidth to the second priority user adjusting. The update of the allocation of network resource bandwidth to the first priority user is based at least in part on a combination of the first priority user demand, the second priority user demand, a first priority user guaranteed bandwidth, and a capacity of the network resource. The update of the allocation of network resource bandwidth to the second priority user is based at least in part on the adjusted allocation of network resource bandwidth to the first priority user.

System and method for maximizing throughput using prioritized efficient bandwidth sharing

A terminal device in a first network includes a processor programmed to receive first data indicating a respective first loading of each of a plurality of first level access devices. The processor is further programmed to select a first level access device based at least in part on the first data; and communicate with a second network via the selected first level access device and a selected second level access device. Each of the first level access devices is switchable to communicate with the first terminal via at least a respective one of one or more shared access channels, and each of a plurality second level access devices is switchable to communicatively couple one or more of the plurality of first level access devices with a second network.

Optimizing network channel loading

A method for controlling congestion of traffic, by one of one or more User Terminals (UTs), traversing an intermediate node, the method comprising: associating one or more traffic flows of a priority to one of the one or more UTs; detecting a traffic congestion for the priority; performing Random Early Detection (RED) congestion control for the priority to relieve the traffic congestion; selecting, for the priority, a User Terminal (UT) with a perceived delay greater than a high threshold; and controlling, by priority, the traffic flows associated with the selected UT.

Bottleneck bandwidth and round-trip propagation time (BBR) congestion control with random early detection (RED)

Systems and methods provide bandwidth management on the inroute of a satellite network. Inroute group managers (IGMs) monitor bandwidth usage in each terminal group (TG) under each of the IGMs, and report this bandwidth usage to a bandwidth manager. Upon receipt of the reported bandwidth usage from each of the IGMs, the bandwidth manager compares the bandwidth usage and minimum/maximum throughput rates associated with each TG. The bandwidth manager calculates scaling factors that it transmits to each of the IGMs to allow the IGMs to allocate bandwidth accordingly.

Bandwidth management across logical groupings of access points in a shared access broadband network

A method and apparatus for dynamically balancing traffic loads in a communications system (such as satellite communications systems), based on a control of collision rates via the real-time control of throughput of channels of the communications system (such as a real time throughput of random access channels in a satellite network). The method and apparatus generates and transmits to remote nodes or terminals an operating probability based on the determined throughput for transmission using the communications channel. Also, the method and apparatus includes receiving by at least one terminal the generated operating probability and determining by the at least one terminal a transmission probability for the communications channel based upon the received operating probability, which can further be adjusted by one or more of a received upper or lower limit of the generated operating probability or a collision rate for the communications channel.

Method and apparatus for dynamic load balancing of communications channels for controlling traffic load in a communications system

A system is described that includes a computer programmed: for each of a plurality of terminals, to receive inroute data via one of a plurality of respective inroute channels; using the plurality of respective inroute channels, to determine a first super inroute group (SIG) and a second SIG based on symbol rates of respective inroute channels; to determine a channel quality value of a first inroute channel, of a first terminal, wherein the first inroute channel is one of the plurality of respective inroute channels; to determine a backlog volume of one of the first SIG or the second SIG; and based on determining the channel quality value of the first terminal and the backlog volume of the first or second SIGs, to transmit, to the first terminal, outroute data comprising an instruction to change to a different inroute channel of the first or second SIG.

Balancing wireless terminal traffic

A system for scheduling prioritized traffic in a scrambled and coded multiple access (SCMA) system multiple terminals and a gateway. Each terminal is configured to receive packets from user devices and place the packets on various input queues. The packets are en-queued onto a plurality of output queues based on priority or service class. The terminal is further configured to detect one or more available SCMA slots within a frame of a communication system, and de-queue packets from the highest priority output queue onto the frame via one or more SCMA bursts. The terminal includes transceiver for transmitting/receiving frames of the communication system to/from the gateway. The terminals autonomously transmit SCMA bursts on a first channel, and transmit TDMA bursts on a second channel based on assigned timings received from the gateway.

An approach is provided for delivering high throughput inroute bandwidth to a terminal in a shared bandwidth satellite communications system. A backlog level of each of a number of remote terminals is monitored, wherein the backlog level of each terminal reflects an amount of data traffic awaiting transmission via an inroute channel of the communications system. When it is determined that the backlog level of one terminal meets a first threshold level, the terminal is assigned to an express priority bandwidth allocation stage. The backlog level of the terminal is monitored while assigned to the express priority stage. When it is determined that the backlog level of the terminal has fallen below a second threshold level, the terminal is removed from the express priority stage. Further, a probability is applied to a qualifying terminal, where the probability controls whether the terminal is assigned to the express priority bandwidth stage.

Apparatus and method for a bandwidth allocation approach in a shared bandwidth communications system

An approach for classification of a data traffic session over a data communications network is provided. A network device receives data packets of the data traffic session. The network device determines a plurality statistical factors that characterize the data traffic session based on the received data packets. The network device analyzes the determined statistical factors in relation to a plurality of classification variables, and classifies the data traffic session as being one of a plurality of session priority types based on the analysis, wherein each of a plurality of subsets of the classification variables delineates the plurality of session priority types over a continuum with respect to a corresponding one of the statistical factors.

Statistical traffic classification with adaptive boundaries in a broadband data communications network

A method and system for distributive flow control and bandwidth management in networks is disclosed. The method includes: providing multiple Internet Protocol (IP) Gateways (IPGWs) that each have a maximum send rate and one or more sessions with associated throughput criteria, wherein each IPGW performs flow control by limiting information flows by the respective maximum send rate and throughput criteria; providing multiple Code Rate Organizers (CROs) that each have a bandwidth capacity, wherein each CRO performs bandwidth allocation of its respective bandwidth capacity to one or more IPGWs of the multiple IPGWs; interconnecting the multiple IPGWs with the multiple CROs; and performing bandwidth management across the multiple CROs and IPGWs. In the method, an IPGW of the multiple IPGWs provides flow control across a plurality of the CROs of the multiple CROs, and a CRO of the multiple CROs allocates bandwidth to a plurality of the IPGWs of the multiple IPGWs.

Method and system for distributive flow control and bandwidth management in a network

An approach for inter-gateway interference estimation and admission control is provided. A gateway receives return link signals, each being received via a satellite from a respective user terminal (UT) located within a satellite beam serviced by the gateway. A transmit power factor and an interference factor are determined for each UT based on the respective return link signal. A total interference factor is determined for the UTs based on the transmit power factors and the interference factors. A residual capacity level for the satellite beam is determined based on the total interference factor and a noise power factor. The gateway receives an admission request from a further UT requesting admission for transmission of a return link signal. The gateway determines whether to grant the admission request based on a required capacity level for the return link signal of the further UT relative to the residual capacity level.

Inter-gateway interference management and admission control for a CDMA satellite communications system

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Clarksburg, MD, United States of America

Jun Xu