Abstract: A method for transmitting data between a terminal and a gateway, the data being transported by Ethernet frames comprising an Ethernet header and a payload, which are themselves encapsulated in lower level packets each comprising a header containing a medium access address, comprises the following steps: determining contexts common to frames whose Ethernet headers have identical fields, and defining an identifier of each the context; associating all or some of the frames with the corresponding context identifiers and suppressing the fields from their Ethernet headers; and introducing the context identifier of each frame for which the fields of the Ethernet header have been suppressed from the header of the lower level packet encapsulating it by replacing its medium access address. A method for receiving data transmitted by means of such a method.

Abstract: According to a method for reducing a risk of transmission stalling between a transmitting unit and a receiving unit, data blocks are transmitted to the receiving unit from the transmitting unit. Each data block includes a block sequence number (BSN). The transmitted data blocks are stored in a transmission buffer. A flow of retransmission of transmitted data blocks is controlled with a transmission buffer window comprising an acknowledge state variable (ASV) that contains the BSN value of the oldest data block that has not been positively acknowledged by its peer. If a BSN corresponding to the ASV is acknowledged in a first type of acknowledgment message, a status of the BSN is set as tentative acknowledged. If the block sequence number is acknowledged in a second type of acknowledgement message, the status of the BSN is set as acknowledged, and the transmission buffer window is advanced to the ASV.

Abstract: Aspects of efficient signal compression format schemes are described. In various embodiments, samples are grouped into one or more blocks. One or more scaling factors are determined for the samples in the one or more blocks. In some cases, a block scaling factor is determined for each block. Further, in some embodiments, if a unique scaling factor exists among samples in a block, the position of the sample is identified. In turn, sign extension bits are scaled from the one or more blocks, and samples in the one or more blocks are quantized. In one embodiment, based on a number of sign extension bits scaled from the block and whether the unique scaling factor exists, a scaling code word is encoded for the block. In other embodiments, implicity, adaptive scaling, and/or adaptive quantization, for example, are used to increase the performance of the compression schemes.

Abstract: A device may receive information that identifies a radio frequency condition of a user device, where the radio frequency condition indicates a quality of a radio access network connection of the user device. The device may determine a radio frequency parameter value based on the radio frequency condition, and may set a data rate for a transmission control protocol (“TCP”) communication with the user device based on the radio frequency parameter value.

Abstract: A cable modem termination system (CMTS) is disclosed that allocates one or more minislots of a super-frame arrangement to cable modems for upstream transmission. The super-frame arrangement includes multiple minislots that correspond to multiple communication channels of one or more super-frames. The CMTS receives requests for upstream bandwidth from the cable modems. The CMTS continuously allocates the minislots of the super-frame to provide upstream bandwidth grants to accommodate these requests. The CMTS communicates the upstream bandwidth grants as a single upstream bandwidth allocation map (MAP) to the cable modems.

Abstract: A system may receive a connection request, from a user device, that includes information identifying a particular application; identify that the particular application is associated with a group of classes of traffic; establish a group of bearer channels that are associated with the group of classes of traffic, the group of bearer channels being associated with a group of different levels of quality of service (“QoS”); process, via a first bearer channel and according to a first level of QoS, first traffic associated with the user device and the particular application; and process, via a second bearer channel of the group of bearer channels, according to a second level of QoS, second traffic associated with the user device and the particular application, the second bearer channel being different from the first bearer channel, and the second level of QoS being different from the first level of QoS.

Abstract: A system that incorporates teachings of the present disclosure may include, for example, a centralized broadband gateway for a wireless communication system, including: a router/gateway module which receives encoded compressed audio/video (A/V) streams and distributes the encoded compressed audio/video A/V streams; multiple audio/video decoders which receive the encoded compressed A/V streams from the a router/gateway module, decode the encoded compressed A/V streams, and output uncompressed A/V streams; and an integrated Wireless High Definition Multimedia Interface (WHDMI) which receives the uncompressed A/V streams from the multiple audio/video decoders and transmits the uncompressed A/V streams wirelessly to media devices, without deploying individual media processors at each media device. Other embodiments are disclosed.

Abstract: Relays can be used to facilitate communication of a packet, such as from a base station to a mobile device. The packet can include a header that designates an intended destination for the packet. The header can transfer such that the intended destination designation can be sent with or without being decompressed at a relay. If there is more than one relay involved in communication, then the header can configure such that the header is accessible without performing decompression. However, if there is one relay stop, then the header can compress the designator in such a way that decompression should occur.

Abstract: An industrial automation system comprising a processor with an updating component coupled to automation devices via a network. The updating component reads control information from machine readable representations of the devices and populates a data structure with the control information. The updating component also updates configuration information of a device from data stored in a file object and/or the data structure, further allowing this transfer to be fragmented into a plurality of messages if the configuration information exceeds a threshold. As well, a vendor deployment methodology is provided that embeds devices and firmware for devices with a Device Type Manager (DTM) prior to deployment and can optionally allow post deployment updates to the DTM.

Abstract: Communication efficiency may be enhanced by using compressed headers. In an example embodiment, a method is performed by a transmitting device to reduce header size. A mapping is created between a logical channel identifier and a compressed logical channel identifier. The compressed logical channel identifier occupies fewer bits than the logical channel identifier. The mapping is transmitted to a receiving device. A compressed header that includes the compressed logical channel identifier is formulated. A communication that includes the compressed header is transmitted to the receiving device. In another example embodiment, a method is performed by a receiving device to decode a header having a reduced size. A mapping and a communication including a compressed header are received. A compressed logical channel identifier is extracted from the compressed header. A logical channel identifier is recovered from the compressed logical channel identifier using the mapping.

Abstract: Multimedia application data formats often use data packets and may contain packetized hierarchical layers with a base layer (BL) and one or more enhancement layers (EL). Packets that comprise variable length coded data typically provide padding bits, which can be used for adding checksum information. The checksum information refers to both, the decoded base layer and decoded enhancement layer packet data, and is used for detecting synchronization loss between the layers. Though the packets provide different individual amounts of padding bits, this variable amount of bits per packet is sufficient for adding checksum information for synchronization related purposes. This allows e.g. out-of-sync detection even if the enhancement layer encoding provides no overhead information for synchronization, in particular no packet headers and no packet synchronization words.

Abstract: A computer processor determines that a call has been placed on hold. The computer processor sends a first packet to a local exchange carrier (LEC) of the calling device, wherein the first packet includes instructions to release the bandwidth of the call placed on-hold, between the LEC and a recipient of the call. The computer processor sends a second packet intermittently to the LEC, wherein the second packet maintains a connection between the calling device of the call and the LEC. The computer processor determines that a representative is available, wherein the representative is the recipient of the call, and in response to determining the representative that is available responds to the call, the computer processor sending a third packet to connect the calling device of the call to the representative that is available.

Abstract: A preamble portion of a physical layer (PHY) data unit is generated for transmission via a long range communication protocol. A service field is generated with a length of eight or less bits. A data portion of the PHY data unit is generated to include the service field having the length of eight bits or less.

Abstract: A method of improving uplink transmission for a MAC layer of a UE in a wireless communication system includes monitoring a transmission buffer and controlling a periodic buffer status report (BSR) timer to expire when lower priority data arrives at the transmission buffer in the condition that a periodic BSR is configured and running.

Abstract: A communication interface and method for efficient robust header compression (RoHC). One embodiment of the communication interface includes: (1) a data flow associated with a context ID (CID) and a data flow status indicator, and having packets, and (2) a robust header compression (RoHC) compressor configured to employ the CID to compress headers of the packets and to mark the CID as reusable by another data flow if the data flow status indicator indicates the data flow is terminated.

Abstract: A video-communication service in a mobile communication network using a packet-switched connection, in which a monitoring of a radio channel portion is performed at the mobile stations of the users involved in the communication. Parameters of the video communication (e.g. the coding rate) are adjusted based on a result of the monitoring of the radio channel portion.

Abstract: Bit-transparent muxing of an input signal for transport through an optical communications network is disclosed. A stuffing ratio is based on a line rate of the input signal and a data rate of a fixed length container. A number (NFS) of fixed stuffs is computed based on the stuffing ratio. The input signal and NFS fixed stuffs are inserted into the payload of the container, and the computed number of NFS are stored in the container's overhead. In some embodiments, the container is an overclocked OTU-3 (OTU3+) frame having a line rate of 44.6 Gb/s. This enables bit-transparent mux/demux of four nominal 10 Gig signals having line rates within a range of between 7.6 Gb/s and 10.4 Gb/s, or a single nominal 40 Gig signal having a line rate within a range of between 38.8 Gb/s and 41.6 Gb/s.

Abstract: Quality of service information (QoSI) is included with a compressed header of a data packet and can be utilized by nodes supporting the header compression channel to perform QoS enforcements at a sub-flow granularity level. A basic mode of a method comprises (1) processing a packet using a process having a process-associated quality of service requirement to form a processed packet, and (2) including, with a compressed header for the processed packet, the header-included quality of service information which is derived using information indicative of the process-associated quality of service requirement. In another mode the header-included quality of service information is derived both from the process-associated quality of service requirement and quality of service information extracted from the received packet.

Abstract: A method for receiving packet data at a communication channel and transmitting the packet data over serial links of the communication channel. The packet data is sliced into n-bit data portions which are concatenated with a header prior to transmitting an n-bit portion across one of the serial links of the communication channel. The header may include an invert bit to alter the majority sign of an n-bit portion. Other aspects of the present invention are also described herein.

Abstract: The present invention is directed to a compression device including an identifier determination circuit configured to determine a first identifier value identifying a first communication terminal of a network, and a second identifier value identifying a second communication terminal of the network; a differential determination circuit configured to determine a differential value based on a difference between the first identifier value and the second identifier value; and a compressed string generation circuit configured to insert the differential value into a compressed string. A compression method, a decompression device and a decompression method are also disclosed.

Abstract: An apparatus, method, and system are provided for binding application data associated with an application with content asset data associated with a content asset. In some embodiments, capacity or bandwidth for each of the application data and the content asset data may be allocated in accordance with one or more profiles. The one or more profiles may include horizontal aspects, vertical aspects, linear and non-linear aspects, and the like. In some embodiments, the binding may take place at a content provider location in accordance with early binding practices, at a central location in accordance with late binding practices, and/or at a user equipment device in accordance with user binding practices.

Abstract: Methods and apparatus are described for reordering a header of a transmission data packet. The methods and apparatus include identifying one or more static fields and one or more dynamic fields within a header of the transmission data packet. Moreover, these aspects include reordering the one or more static fields and the one or more dynamic fields within the header of the transmission data packet. Additionally, these aspects include compressing the header of the transmission data packet to form a compressed transmission data packet in response to reordering the one or more static fields and the one or more dynamic fields. The aspects also may include transmitting the compressed transmission data packet.

Abstract: A method and apparatus for Ethernet data compression enables the size of Ethernet frames to be reduced. Compression and decompression of Ethernet frames occur by the Ethernet network elements, rather than by user computers or end devices that transmit data on the Ethernet network. A new EtherType value may be used to identify the type of compressed Ethernet frames and optionally the type of mechanism used to compress the payload of Ethernet frames. The new EtherType may be inserted into a newly assembled frame ahead of the original EtherType. Alternatively, the new EtherType may replace the original EtherType and a short subheader may be used to identify the original EtherType. Out-of-band network signaling by the Ethernet control plane may also be used to determine whether frames are to be compressed and decompressed over controlled Ethernet links and tunnels, with or without use of the new EtherType.

Abstract: A system, method, and computer program for compressing packet data is provided. In exemplary embodiments, one or more prefix arrays may be generated for retrieved data, and used as the basis for predicting subsequent data. The packet data may be compressed based, at least partially, on the predicted subsequent data. Accordingly, the compressed packet data may be transferred over a communication network.

Abstract: Method for identifying a mobile telephone, a device, where there is a ADD system (1) (Automatic Device Detection) system connected to a network (2) for mobile communication, the ADD system including a TCD (3) (Terminal Capabilities Database) with SAT (SIM Application Toolkit) terminal profile values stored for all device (4) models. The method includes the steps of retrieving the IMEI (International Mobile Equipment Identity) number from the device (4), retrieving the device model and the SAT terminal profile (P2) from the TCD by way of the retrieved IMEI, obtaining the SAT terminal profile (P1) of the actual device, comparing the SAT terminal profile (P1) of the actual device with the SAT terminal profile (P2) obtained from the TCD in the ADD system, and considering the device as having the right IMEI number when the SAT terminal profile of the actual device and the SAT terminal profile obtained from the TCD coincide.

Abstract: Systems, methods, apparatus, and computer program products are provided for receiving content available for consumption. For example, a user device can receive a message about content available for consumption and access the content via the appropriate provided in the user's broadcast area. Moreover, a user device can be used to access program information based on the user device's location.

Abstract: A bandwidth reservation apparatus and bandwidth reservation method that enable a communication apparatus to quickly begin and stably carry out a data transmission, and a communication apparatus and communication system including the bandwidth reservation apparatus.

Abstract: Methods and devices for encoding or decoding messages, each message including a list of information items. The encoding method comprises determining a first list of indexes associated with information items that are already indexed in a local indexing table and a second list of literal values of other information items not yet indexed in said indexing table; encoding the indexes of the first list; binary compressing at least a serialized binary representation of the literal values of the second list; and concatenating the first list and the second list together to obtain an encoded bitstream of the information items. When the messages are sent over a plurality of connections, a global table is shared between the connections to store the indexed items of information; and a local indexing table for each connection associates indexes with references to an entry of the shared global table.

Abstract: A device (D1) for compression of streams of packets of data, for a communication equipment (E1) constituting a transmission end point in an Internet Protocol communication network (R), the packets of a stream each comprising, in particular, an IP header including a destination end point (E2) identifier, a session identifier and stream attributes, and said packets being intended to be transmitted after decomposition into cells. This compression device (D1) comprises processing means (MT1) responsible, if they receive a packet of a stream, for determining if the IP header of the packet can be compressed as a function of at least one chosen criterion, and for determining if the compression can lead to a reduction in the number of cells having to result from the decomposition of that packet.

Abstract: The invention relates to techniques for controlling a dynamic hitless resizing in data transport networks. According to a method aspect of the invention, a network connection comprises M tributary slots defined in a payload area of a higher order transport scheme of the data transport network and the method comprises the steps of receiving a connection resize control signal at each of the nodes along the path of the network connection; adding at each node along the path in response to the connection resize control signal a second set of N tributary slots to the first set of the M tributary slots, such that the network connection comprises M+N tributary slots; and increasing, after M+N tributary slots are available for the network connection at each node along the path, a transport data rate of the network connection.

Abstract: A method and apparatus for reducing HTTP header is provided. The method may include receiving a suppression identifier list, wherein the suppression identifier list associates header identifier values with at least a portion of one or more header content items in an HTTP header, replacing the one or more header content items with the corresponding header field identifier from the suppression identifier list, and transmitting the data packet with the one or more header field identifiers replacing the corresponding one or more header content items.

Abstract: A compression method applies a selection rule to input symbols and generates a reduced partial set of symbols. The partial set is checked against a dictionary-index for a match. A match identifies a range of matching symbols in a dictionary. The length of the matching range is iteratively increased by checking previous and next symbols in the input data and the dictionary until a matching range length meets a threshold limit or the length of the matching range cannot be increased further. Compressed data corresponding to the input symbols is provided where input symbols are copied over and symbols in a matched range of data are replaced with a representation of their corresponding start location and length in the dictionary.

Abstract: A method includes receiving a registration request including a first dictionary definition. The registration request is associated with user equipment. The method includes transmitting to the user equipment a response including a second dictionary definition. The method includes transmitting subsequent messages to the user equipment if the first and second dictionary definitions agree, the subsequent messages being compressed using the first static dictionary.

Abstract: A network device including a port and a processor. The port is configured to receive a packet. The packet includes a first transmit window size for a first communication session handled by the network device. The processor is configured to modify the first transmit window size based on i) a size of a buffer of the network device, and ii) a second transmit window size for a second communication session handled by the network device. The buffer is used to store packets received by the network device. The second communication session is different than the first communication session.

Abstract: The enclosed system and method provides a means by which metadata-encoded or otherwise self-describing messages can be communicated, stored or otherwise utilized at a greatly reduced message size. This is accomplished for a given message through decomposing it into message metadata and message data, using a hash of the message metadata along with the message data to represent the message while in its decomposed form absent of original message metadata, and subsequently recomposing the message from the message metadata and message data using the hash as a reference. The method disclosed herein exploits detected repetition of sets of metadata, deriving benefit each time a hash is communicated, stored or otherwise used in lieu of a set of metadata, the hash being smaller in size than the set of metadata itself.

Abstract: In one embodiment, the present invention is a method and apparatus for scalable virtual private network multicasting. In one embodiment a service network builds a new data multicast distribution tree for each high-bandwidth multicast data flow (e.g., multicast data flows that require an amount bandwidth meeting or exceeding a predefined threshold). However, if the multicast data flow is a low-bandwidth flow (e.g., if the required amount of bandwidth falls below the predefined threshold), the multicast data flow is routed over an existing multicast distribution tree in order to minimize an amount of state information that must be maintained by service provider core routers in the backbone network.

Abstract: A method for decompressing data includes receiving, by a network element, a first plurality of packets. Also, the method includes receiving, by the network element, a second plurality of packets. Additionally, the method includes decompressing the first plurality of packets by a first decompressor using a first compression scheme and decompressing the second plurality of packets by a second decompressor using a second compression scheme.

Abstract: In one embodiment, a method includes obtaining a message associated with a data flow that includes a first indicator that identifies an amount of requested pool bandwidth and a second indicator that identifies a pool with which the data flow is associated. The pool is associated with a plurality of data flows that includes the data flow. The method also includes determining whether the pool has an overall bandwidth allocation, and, if so, determining whether reserving the amount of requested bandwidth would cause the overall bandwidth allocation to exceed a maximum pool bandwidth allocation. Finally, the method includes reserving approximately the amount of requested bandwidth when it is determined that reserving the amount of requested bandwidth would not cause the overall bandwidth allocation to exceed the maximum pool bandwidth allocation. Reserving approximately the amount of requested bandwidth includes increasing the overall bandwidth allocation by the amount of requested bandwidth.

Abstract: Implementations include a method, systems, and computer program products for adaptively configuring codecs to transmit encoded data to better utilize available bandwidth of reachable networks. One implementation is a method of transmitting encoded data from a host to a target. The method includes, selecting a communication network reachable by the host, estimating an available bandwidth from the host to the target via the selected communication network, configuring a codec from a plurality of codecs implemented in the host according to the estimated available bandwidth, encoding data using the configured codec, and transmitting the encoded data to the target.

Abstract: A network optimization engine can be used to optimize the transmission of network traffic by employing means to prioritize highly compressed network traffic over other network traffic. The network optimization engine accomplishes network traffic optimization by calculating a compression ratio for received data packets and determining whether the calculated compression ratios exceed a compression ratio threshold. The predetermined compression ratio threshold can be a hard coded value or an empirically determined compression ratio threshold that is calculated using a sample of the received network packets. Network packets having a compression ratio that exceeds the compression ratio threshold are classified as highly compressed network traffic and transmitted according to a transmission scheme that is different than a transmission scheme used to transmit non-highly compressed network traffic.

Abstract: Techniques are disclosed that involve communicating in bursty noise environments. For instance, a source device may send a probing packet to a destination device. This probing packet is for determining whether the communications medium (e.g., one or more frequency channels) is currently exhibiting a busy or jammed (e.g., due to bursty noise) condition. More particularly, based on whether an acknowledgment of the probing packet is received, the source device determines whether the channel is jammed (or busy) or clear. For example, an unacknowledged probing packet indicates that the channel is jammed or busy, while an acknowledged probing packet indicates that the channel is clear. If the channel is determined to be clear, then the source device may transmit one or more data packets to the destination device. Such data packet transmissions may be in accordance with a non rate-adaptive technique.

Abstract: Method and system for providing data, video and voice to a group of end user devices includes receiving end user device group quality of service rules and access network node bandwidth constraints; assigning multicast addresses and unicast addresses to end user devices of the group in response to the access node bandwidth constraints; and providing, in response to the end user device group quality of service rules and requests to receive services from the residential gateways, data, video and voice utilizing the assigned multicast addresses and unicast addresses. Further methods include receiving location information representative of distances between multiple end user devices and access nodes; defining end user bandwidth constraints in response to the location information and in response to access node bandwidth constraints; and providing, in response to the end user bandwidth constraints and to requests to receive services from the end user devices, data, compressed video and voice.

Abstract: Hybrid packet traffic flow profiling technology inspects packet headers to classify packet traffic flows using clustering models developed using unsupervised learning based on known packet traffic flows and one or more traffic classification models developed using supervised learning based on the known packet traffic flows.

Abstract: Methods and devices for reducing traffic over a wireless link through the compression or suppression of high layer packets carrying predictable background data prior to transportation over a wireless link. The methods include intercepting application layer protocol packets carrying the predictable background data. In embodiments where the background data is periodic in nature, the high layer packets may be compressed into low-layer signaling indicators for communication over a low-layer control channel (e.g., an on off keying (OOK) channel). Alternatively, the high layer packets may be suppressed entirely (not transported over the wireless link) when a receiver side daemon is configured to autonomously replicate the periodic background nature according to a projected interval. In other embodiments, compression techniques may be used to reduce overhead attributable to non-periodic background data that is predictable in context.

Abstract: A method for compressing a user datagram protocol (UDP) data packet includes: when receiving an Internet Protocol version 4 (IPv4) UDP data packet, a compressor searching a context of the UDP data packet, if the context does not exist, creating the context of the UDP data packet, taking a value of an IP identifier (IP-ID) field of the UDP data packet as an initial value of a serial number (SN) of the context, and then compressing the UDP data packet according to the context. Also provided are methods and devices for compressing and decompressing a UDP data packet. The methods and devices can effectively improve the compression efficiency, reduce the probability of sending the IR/IRDYN packet, significantly reduce 1 byte transmission, improve the compression efficiency by 50%, and reduce the probability of using an extension header with a high capacity.

Abstract: An Optical Transport Network (OTN) mode management system includes a controller communicatively coupled to at least one OTN port. The controller is configured to operate an OTN line Optical channel Data Unit level k (ODUk) mode management system for the at least one OTN port, and the OTN line ODUk mode management system is configured to support different multiplexing scenarios on the OTN port with no loss of control plane packets on aggregated links. A network element includes at least one port with a plurality of lines associated therewith, a controller communicatively coupled to the at least one port, and an OTN line ODUk mode management system executed on the controller for managing the plurality of lines on the at least one port. A method includes configuring and dynamically managing modes of a plurality of OTN lines in a link.

Abstract: A system, method, and computer program for compressing packet data is provided. In exemplary embodiments, one or more blocks may be identified that include block data similar to packet data of one or more packets. The one or more blocks may comprise archives of previously transferred packets. The packet data may be compressed based, at least partially, on the block data. Accordingly, the compressed packet data may be transferred over a communication network.

Abstract: A unit (25, 46) performs a compression operation or a decompression operation with respect to information for transmission in packets over a wireless link (36). The transmission over the wireless link is such that the packets may become reordered from a transmission sequence. The compression operation and the decompression operation involve a tradeoff of robustness and reordering depth. The robustness is an indicator of a degree of information loss over the link tolerated by the compression operation and the decompression operation; the reordering depth is a degree of packet reordering tolerated by the compression operation and the decompression operation. The unit dynamically adjusts the tradeoff of the robustness and the reordering depth in accordance with characteristics of the link. In an example embodiment, the information upon which the compression operation and the decompression operation is performed is sequence number information of a packet header.

Abstract: The present invention is a method of sending compressed data includes providing a plurality of M compressing devices, each compressing device configured to apply a lossless compression algorithm and dividing uncompressed data into a first plurality of sequential segments S of uncompressed data. Each segment Si of a first N sequential segments of uncompressed data, for i=1 to N, where M >N, is applied to a respective compressing device CDi, and N respective compressed blocks Bi, each block Bi having a respective characteristic transmission time BlockDurationi.

Abstract: There is disclosed a wireless terminal device in which also when IEEE802.16e is used in an access system of the next generation network, an end-to-end QoS is kept, and comfortable communication can be performed. In a wireless access system including the next generation network as a core network, in a terminal for BWA (the wireless terminal device), an SDP generating section generates a session description protocol (SDP) corresponding to an application, an SDP analysis section analyzes the SDP, a packet classifier section distributes an IP packet to each queue of a QoS class, and a DSA-REQ message generating section sets a QoS parameter of a DSA-REQ message to generate the DSA-REQ message, and reports the message to a wireless base station for the BWA.