Abstract: Message send and receive blocks are provided to emulation ICs and reconfigurable interconnect ICs of an emulation system to reduce the multiplexed transfer latency of critical emulation signals. Each of a corresponding pair of a message send block and a message receive block is provided with a signal state value inclusion schedule to control operation of the message send and receive blocks. The signal state inclusion schedule calls for some signals within a message to be sent more often than other signals within the message. In some embodiments a parity value is implemented as part the message and included in the signal state inclusion schedule.

Abstract: A method of and system for time-division-based channel collision collaboration in a wireless communication system including at least two Wireless Regional Area Networks (WRANs) with overlapping service areas that employ dynamic frequency hopping is provided. The method includes performing, by at least one Consumer Premise Equipment (CPE) located in an overlapping portion of service areas of at least two WRANs, spectrum sensing and feeding idle channel information back to respective Base Stations (BSs) of the at least two WRANs, broadcasting, by each of the at least two WRANs, a pre-occupation announcement message for a qualified idle channel, and determining, by a WRAN with the highest priority of the at least two WRANs, a time resource allocation for WRANs in a channel collision state of the at least two WRANs. The method addresses problems, such as a large delay and impaired wireless access due to an absence of an idle channel for adjacent WRANs, may be avoided, while the WRANs may maintain their QoSs.

Abstract: A data transmitting and receiving method and a broadcasting receiver are disclosed. A CABLECARD transmits a new flow request message for requesting a connection of a data transmitting and receiving path to a host. The host receiving the new flow request message transmits a new flow response message to the CABLECARD. The new flow request message includes a control field for recording processing information on an error generated during communication.

Abstract: An apparatus and method are provided which preferably increase reliability of data sensitive to packet loss. According to principles of the invention, a quality of service value may be dynamically assigned to network packets based on the contents of the network packets.

Abstract: A method, system, and computer-readable media are provided for creating an optimized communication path between mobile devices. The method includes receiving a request to transmit data to a destination mobile device, and identifying a destination IP address of a destination mobile device within the request. The method further includes determining if the destination IP address is located within a routing table, and bypassing a reverse tunneling procedure if the destination IP address is located within the routing table. Additionally, the method includes transmitting the data directly to destination foreign agent of the destination mobile device.

Abstract: Two wireless local area networks exhibiting different characteristics link portable or mobile computer devices. An infrastructure network comprising radio base stations, and at least one portable computer device make up the first wireless network, which communicates using spread spectrum frequency hopping communication. A second local area network supports radio communication between a portable computer and peripheral devices with built-in transceivers. The networks use a reservation access protocol that facilitates frequency hopping synchronization, supports adaptive data rate selection based on communication quality, and prevents interference between the wireless networks. In a premises LAN, an infrastructure network comprises radio base stations and a backbone LAN. A higher-power LAN using frequency hopping comprises the infrastructure network and at least one mobile computing device.

Abstract: A mobile station (100) and a compression/decompression node in a wireless network (5), preferably the GGSN 30 (30), agree on whether to apply compression/decompression, and what compression/decompression scheme to use either by pre-configuration (when the GGSN 30 is in the home network of the mobile terminal) or by signalling (when the GGSN 30 is in a visited or a roamed-to network). Additional information, such as a profile-specific dictionary, may be used to increase the compression efficiency, particularly during start-up. Dynamic data can also be accommodated. The compression/decompression may be turned on and off on a packet-by-packet basis, depending on whether the compression actually results in a smaller packet. A compressed/uncompressed indicator bit or bits can be inserted explicitly on a per packet basis, and/or the compressed/uncompressed indication can be derived implicitly.

Abstract: Radio protocol for a next generation mobile communication system is disclosed including a radio link control layer for connecting to an upper layer through a service access point provided in advance and for connecting to a lower layer through a plurality of logic channels provided in advance. The radio link control layer includes at least one radio link control entity for transmission/reception of data to/from up-link or down-link according to a form of a data transmission mode.

Abstract: The transponder includes a 64B/66B code synchronization bit determination circuit 1511a for notifying a PLL selection control circuit of a control signal which instructs on selection of a variable oscillator or a variable oscillator in response to a case where an electric signal sent from an optical signal reception unit 111 includes a 64B/66B code synchronization bit, an A1A2 byte determination circuit 1511b for notifying the PLL selection control circuit of a control signal which instructs on selection of a variable oscillator or a variable oscillator in response to a case where an electric signal sent from the optical signal reception unit 111 includes an A1A2 byte, and the PLL selection control circuit 1512 for controlling a PLL selector 16 and a PLL selector 17 based on a control signal.

Abstract: A call admission control technique allowing flexible and reliable call admissions at an ATM switch in the case of an ATM network including both QoS-specified and QoS-unspecified virtual connections is disclosed. In the case where a QoS (Quality of Service) specified connection request occurs, an estimated bandwidth is calculated which is to be assigned to an existing QoS-unspecified traffic on the link associated with the QoS-specified connection request. A call control processor of the ATM switch determines whether the QoS-specified connection request is accepted, depending on whether a requested bandwidth is smaller than an available bandwidth that is obtained by subtracting an assigned bandwidth and the estimated bandwidth from a full bandwidth of the link.

Abstract: Aspects of a method and system for low power IDLE signal transmission in Ethernet networks are provided. In this regard, during time periods between transmissions of actual data by a local Ethernet link partner, the local Ethernet Link partner may generate one or more signals, in place of a standard Ethernet IDLE signal, that enable synchronization between Ethernet link partners. In this manner, the generated signals may enable reducing power consumption as compared to standard Ethernet IDLE signals. Accordingly, link activity may be monitored to enable detecting periods when there may be no actual data for transmission and the generated signals may be transmitted. The generated signals may be transmitted at a reduced symbol rate as compared to standard Ethernet IDLE signals. The generated signals may be transmitted via fewer network links as compared to standard Ethernet IDLE signals.

Abstract: A communication apparatus determines a hibernation period on the basis of the amount of an offset in beacon period start timing among multiple beacon groups. The communication apparatus is placed in a hibernation status in accordance with the determined hibernation period. Thus, an offset in beacon period start timing among the beacon groups that would occur while the device is in hibernation can be prevented and the need for merging beacon groups and decrease in data rate during such merging are prevented.

Abstract: Upon detecting a data event initiating an update to a table, a first classifier index associated with the data event is identified. From a classifier table, the current position in a first dimension of the table associated with the classifier index is determined. An open position in the first dimension of the table is also identified. Updated data is stored in the open position within the table. In the classifier table, the open position storing the updated data is associated with the classifier index.

Abstract: A system and method for preventing a count-to-infinity problem in a network using epochs of sequence numbers in protocol messages to eliminate stale protocol information in the network and to allow the forwarding topology to recover in merely one round trip time across the network.

Abstract: A method for broadcasting messages in an ad hoc wireless network having a tree-based architecture is provided. When a node receives a broadcast message for re-broadcasting to other nodes in the network, it builds a list of identifiers of other nodes in the network from which the node requires reception of a broadcast message as an implicit acknowledgment that said other nodes in the network have received said broadcast message. The node builds this implicit acknowledgment list based on stored data pertaining to an existing tree-based topology of the network. After this list is built, the node re-broadcasts the broadcast message. Each node in the network executes this broadcasting protocol and in so doing a broadcast message quickly and efficiently propagates through the network with minimal redundancy and impact on the topology of the network.

Abstract: Methods and apparatus for selecting digital coding and/or decoding technology for programming and data delivery over, e.g., a content-based network. In one embodiment, the network comprises an HFC cable or satellite network that includes a server process interfacing with a plurality of customer premises equipment (CPE), and/or associated client devices, each having different capabilities profiles. The server determines the one or more capabilities possessed by the CPE, and evaluates one or more program or content choices for possible delivery to that CPE based on its profile. The server generates a list of programs or content based on this evaluation, and transmits this list to the CPE, which displays the list for viewing by a user. The user is therefore offered a list of available content that is compatible with their specific configuration.

Abstract: A clearinghouse server for routing multi-media communications, including telephony calls, between a source device and a destination device via a distributed computer network, such as the global Internet. The clearinghouse server can authorize the completion of a communication from a source device to a destination device and collect usage-related information for the completed communication. In response to an authorization request issued by an enrolled source device, the clearinghouse server can identify one or more available destination devices available to accept a communication from an authorized source device. The clearinghouse server can provide a list of the identified destination devices, typically organized in a rank order, by sending an authorization response to the source device. In turn, the source device can use this list to select a destination device and contact that selected device via the computer network to complete the communication.

Abstract: A method for transmitting a transmission time interval signal in a cellular network is described. A multiplexed data signal is received. A demultiplexer is applied to the data signal. The data signal from the demultiplexer is encoded. A linear transform is applied to the data signal. A plurality of uplink transmission time interval signals, which include the data signal, are reformatted. The placement of one or more reference signals are staggered within each of the plurality of transmission time interval signals. Each of the plurality of uplink transmission time interval signals are transmitted.

Abstract: Devices and methods are provided for enabling high-speed data communication at relatively low cost. Some methods allow devices to communicate by selecting a data transfer rate from among multiple data transfer rates. Some such methods allow devices to communicate according to the highest data transfer rate among multiple data transfer rates at which communications can be made without exceeding a predetermined error rate. Communications may be enabled between a first device operating at a relatively higher data transfer rate and a second device operating at a relatively lower data transfer rate. Pause frames or the like may be used to rate limit data received from the first device and maintain an average data transfer rate for communications with the second device at the lower data transfer rate.

Abstract: A network device keeps track of multicast replication that is occurring at a later link in the network. The device may then intelligently adjust traffic to various end-users based on the bandwidth that is to be allotted to each end-user and based on the bandwidth that is expected to be “created” at the later link in the network. In one exemplary implementation, a device includes logic to process network traffic that includes multicast streams by performing traffic shaping functions that are based on, for each of a number of subscribers, a bandwidth of each of the multicast streams that is being subscribed to by a subscriber and a bandwidth of unicast traffic to the subscriber.