Patent application number | Description | Published |
20090290531 | LARGE PACKET CONCATENATION IN SATELLITE COMMUNICATION SYSTEM - Upstream information arriving through a gateway from a user terminal in a satellite link subject to propagation delay is efficiently scheduled through a modified Demand Assigned Multiple Access (DAMA) algorithm such that arriving data packets arriving at the software queue at the user terminal are concatenated to form a large frame for transmission to improve efficiency. A piggyback request replacing a conventional DAMA contention request for the succeeding packet is issued to request bandwidth allocation for the succeeding concatenated packet. In a specific embodiment, all packets up to the physical request limit arriving at the user terminal since a prior piggyback request or contention request are concatenated so that all currently known packets (up to that limit) are accounted for by the next piggyback request. | 11-26-2009 |
20090290532 | MAP-TRIGGERED DUMP OF PACKETS IN SATELLITE COMMUNICATION SYSTEM - Upstream information arriving through a user terminal in a satellite link is efficiently scheduled through a modified Demand Assigned Multiple Access (DAMA) algorithm such that data packets arriving at the user terminal are concatenated to form a larger frame for transmission and the concatenated packet is held in a first queue disposed ahead of a second queue, where the data in the second queue cannot be modified (typically a hardware queue), sufficient to allow the second queue to be emptied. In a specific embodiment, all packets arriving at the user terminal since a prior piggyback request are concatenated so that all currently known packets (up to a preselected limit) are accounted for by each succeeding piggyback request. Since it is desirable to concatenate all packets that arrive at the user terminal since the last piggyback request, the piggyback request according to the invention covers all currently known packets (up to the preselected limit) in the user terminal. The held-back packets are released or dumped to the second queue by a trigger operative according to a map, the map being a grant allocation schedule. This mechanism handles instances where the second queue is not able to handle all known packets. | 11-26-2009 |
20090290533 | WEB-BULK TRANSFER PREALLOCATION OF UPSTREAM RESOURCES IN A SATELLITE COMMUNICATION SYSTEM - In a data over satellite system, preallocation of upstream channel resources is provided by a scheduler at the gateway satellite modem termination system (SMTS) in response from the user terminal, wherein the user terminal detects web browser and/or bulk transfers involving large amounts of data transfer from users via the upstream channel. A type length value (TLV) field is included with data packets transmitted to the gateway SMTS, at which excess transfer capability is allocated to the user terminal in anticipation of load requirements. | 11-26-2009 |
20090290534 | UPFRONT DELAYED CONCATENATION IN SATELLITE COMMUNICATION SYSTEM - Upstream information at a user terminal in a satellite network is efficiently scheduled through a Demand Assigned Multiple Access (DAMA) algorithm that delays transmission of the first packet's bandwidth allocation request in order to allow subsequent packets to be included in the first packet's bandwidth allocation request (up-front delayed concatenation) in order to minimize delay due to the long round trip time and overhead in packet processing and packet transmission through a hardware queue. Rather than merely the size of the next packet, the size of the entire concatenated frame is communicated to the scheduler, which may be distributed between the user satellite modem and the gateway, to prepare the schedule, where the schedule is the basis of the upstream transmission of the various associated user terminals. Optimal delay is a function of traffic pattern and the scheduling delay including round-trip delay. | 11-26-2009 |
20100091699 | PROFILE-BASED BANDWIDTH SCHEDULER - A profile-based scheduler is disclosed. In other embodiments, the profile-based scheduler may profile previously accessed websites and/or FTP sites. In doing so, the profile may compile bandwidth requirements for all such profiled websites and/or FTP sites within a lookup table. When a website and/or FTP site is accessed, the profiler may grant the bandwidth associated with the website or FTP site within the lookup table. In some embodiments, the profiler may create entries not only based on websites and/or FTP sites but may also profile users, TCP connections, web browser configurations and/or web browser types. | 04-15-2010 |
20100097932 | SATELLITE TRAFFIC AND CONGESTION-BASED UPSTREAM SCHEDULER - Systems and methods for implementing a traffic and congestion-based scheduler. The method includes receiving a bandwidth request. The method further includes analyzing the application type to determine which of a plurality of schedulers is best equipped to efficiently service the bandwidth request based on the application type, analyzing network traffic patterns of the client to determine which of the plurality of schedulers is best equipped to efficiently service the bandwidth request based on the network traffic patterns of the client, and analyzing congestion of the satellite link to determine which of the plurality of schedulers is best equipped to efficiently service the bandwidth request based on the congestion of the satellite link. Further, the method includes, based on the analysis of the application type, the network traffic patterns of the client, and the congestion of the satellite, selecting a scheduler, and sending the bandwidth request to the selected scheduler. | 04-22-2010 |
Patent application number | Description | Published |
20090062492 | Aluminoxane Catalyst Activators Derived From Dialkylaluminum Cation Precursor Agents, Processes For Making Same, And Use Thereof In Catalysts And Polymerization Of Olefins - Compositions useful for activating catalysts for olefin polymerization, and methods for making same, are provided. Such compositions can be derived from at least: an organoaluminum compound, a carrier, an oxygen source, and, optionally, a Lewis base. | 03-05-2009 |
20090326273 | IONIC BRONSTED ACID - A new ionic compound is provided that is derived from N,N-dimethylaniline and pentafluorophenol in amounts such that there are at least 2 equivalents of pentafluorophenol per equivalent of the N,N-dimethylaniline. | 12-31-2009 |
20130029834 | Aluminoxane Catalyst Activators Derived From Dialkylalumium Cation Precursor Agents, Processes for Making Same, And Use Thereof In Catalysts And Polymerization Of Olefins - Compositions useful for activating catalysts for olefin polymerization, and methods for making same, are provided. Such compositions can be derived from at least: an organoaluminum compound, a carrier, an oxygen source, and, optionally, a Lewis base. | 01-31-2013 |
20130345376 | Aluminoxane Catalyst Activators Containing Carbocation Agents, and use thereof in Polyolefin Catalysts - This invention relates to an activator composition comprising (i) an organoaluminum compounds; (ii) a carbocation compound of the formula R | 12-26-2013 |