Abstract: The invention discloses to a signal processing method for user equipment in a CDMA mobile communication system. The signal processing method is a combination of time diversity and joint detection in order to raise diversity gain of a receiver. The method comprises: sample a received signal on time domain, estimate spatial channel impulse response value, obtain matrixes, constitute a system matrix, perform joint detection algorithm and obtain an estimated value of original sending data. When the method is used in a mobile user equipment, the uplink and downlink performance unmatched problem can be solved, using same frequency multiplexing can be reached and the joint detection algorithm is a simpler one. The method also can be used in a base station.

Abstract: A system and method is provided for coordinating wireless bandwidth usage of a common frequency band by wireless nodes in two disjoint networks, such as an infrastructure (“IS”) network and an ad hoc (“AH”) network. When AH nodes move into the transmission range of an access point of the IS network, they register with the access point and listen to the access point to tell them when they are allowed to transmit data over a given transmission channel. The access point coordinates the bandwidth usage by broadcasting ad hoc mode poll signals to indicate that the ad hoc nodes may transmit over the channel, and sending infrastructure mode poll signals to indicate that a wireless node in the IS network can transmit over the given channel. The access point makes a fraction of the bandwidth available for communications by the wireless AH nodes in its transmission range, while guaranteeing the rest of the bandwidth for wireless nodes in the IS network.

Abstract: A call connection system assigns at least one specific one of a plurality of slots, in advance, as an emergency call slot for processing an emergency call and assigns remaining slots, in advance, as general call slots for processing general calls that need not be preferentially handled. This system includes a call connection processing section, announcement transfer section, and slot releasing section. If there is an idle general call slot, the call connection processing section performs call connection processing by using the idle slot in response to a general call connection request. If there is no idle general call slot and there is an idle emergency call slot, the announcement transfer section assigns one of the emergency call slots to an originating terminal, in response to a general call connection request, to transfer a first announcement informing that the general call cannot be connected because of line congestion to the originating terminal.

Abstract: A TDMA radio terminal comprises a transmitter portion and a receiver portion. A reference signal is launched in the transmitter portion while tuning the receiver portion. At the same time, an internal delay counter is started. The counter counts clock pulses till the reference signal returns through the receiver portion. Letting this pulse count be Nd, a transmission wait time is Nt−Nd. Nt is a transmit timing at the antenna. The Nd counting operation may be triggered by a power on or a signal from a controller. Method for determining the transmission wait time in the production site is also disclosed.

Abstract: In a packet data transmission via a radio interface of a communication system, a packet number as identification information is transmitted for every data packet between data stations communicating with one another. To improve transmission security for the identification information, the identification information is multiplied and distributed separately to at least two data packets or transmitted separately in a separate information data packet.

Abstract: An IP address assignment scheme is described. The IP address assignment scheme is well suited for enabling an Internet Data Center (IDC) to assign IP addresses to its customers such that the IDC's network address space is efficiently utilized. The IP address assignment scheme utilizes variable length subnetting and class-less addressing. Moreover, the IP address assignment scheme ensures that customers are provided sufficient IP addresses for the customers' future expansion needs.

Abstract: A method for providing communication service onboard a remote location where landline and cellular telephone service is unavailable. The method utilizes a communication system that includes an onboard local area network (LAN) having an onboard server, at least one smart communication device operable by an onboard user, and a base station server system having a base station server. The method connects the smart device to the onboard LAN using one of a plurality of input/output (I/O) interfaces, utilizes a wireless communication link and IP telephony to exchange communications between the onboard server and the base station server; and controls data flow within the communication system.

Abstract: A Plain Old Telephone System (POTS) connection is established between a Broadband modem and a remote server. A configuration request is then transmitted from the Broadband modem to the remote server using DTMF tones. Subsequently a domain name associated with a Broadband Service Node (BSN) and a user identifier, such as a telephone number, is received from the remote server via the POTS connection using Dual-Tone Multi-Frequency (DTMF) tones. A PPPoE session is then established using the domain name, by firstly authenticating the Broadband modem for the PPPoE session and then configuring the DSL modem. This configuration is accomplished by transmitting a request for configuration details from the Broadband modem to the BSN having the domain name and then receiving configuration details from the configuration server. The Broadband modem then automatically configures itself using the configuration details.

Abstract: An Internet controlled telephony system employing a host services processor connected to a subscriber via the Internet and further connected to the public switched telephone system (PSTN). The subscriber employs a web interface to populate a database with preference data which is used by the host services processor to handle incoming calls and establish outgoing telephone connections in accordance with the preference data provided by the subscriber. Incoming calls to a telephone number assigned to the subscriber may be automatically forwarded to any telephone number specified by the preference data.

Abstract: A host apparatus incorporates a holding-tone generator. The holding-tone generator generates a holding-tone packet. The holding-tone packet is broadcast, as a broadcast packet, to network telephone terminals. Each network telephone terminal receives the holding-tone packet if it assumes a holding state.

Abstract: A public telecommunication terminal used for both of PSTN telephony and VoIP telephone and a method of controlling thereof are disclosed. When a user takes a handset, a dial tone is generated, and a dial tone corresponding to a number the user dials is generated and outputted. When a telephone call completion button is selected, the dialed number is transmitted to the Internet in the form of data packet. The public telecommunication terminal checks if the Internet is available, and it is automatically converted into PSTN mode when the Internet is not available.

Abstract: A system for linking standard telephony communications with internet protocols. Standard telephony equipment, such as a telephone, can communicate using the internet without special adapters or the like. A network of Internet servers may be connected to the Internet and telephony communications system, enabling telephony communications equipment access to the Internet.

Abstract: A service module incorporated within the network infrastructure intercepts packets communicated between a client and a server to determine whether the connection corresponds to one of a plurality of service applications that may supported by the service module. If so, the service module breaks the connection by terminating the connection with the client at the service module and opening a separate connection between the service module and the server. The service application may then perform application-specific process of the data communicated between the client and server. In order to increase processing efficiency associated with classifying the connection between the client and the server, the service module stores classification rules in a plurality of hashing tables, with hash conflicts arranged as an m-ary tree structure. This arrangement enables the service module to efficiently search for classification rules and resolve hash conflicts without imposing a significant processing penalty.

Abstract: A method for remotely communicating with a Broadband modem is provided. Once a communication error is detected on a Broadband modem, a Plain Old Telephone System (POTS) connection is established between the Broadband modem and a remote server. Communication then occurs with the remote server via the POTS connection using Dual-Tone Multi-Frequency (DTMF) tones. The communication preferably comprises transmitting information associated with the communication error to the remote server via the POTS connection using DTMF tones and receiving a diagnosis from the remote server via the POTS connection in DTMF tones. A system for remotely diagnosing a Broadband modem as well as a Broadband modem is also provided.

Abstract: An MAC frame inputted from a port (in a line accommodation unit) to which a local private network is connected, is further inputted to an L2 forwarding unit 7. It is judged where the received MAC frame should be transferred by referring to a VPN definition table 3 or an L2 route table 6, and the MAC frame is outputted to a local port or is transmitted to an MPLS network after attaching a label to the MAC frame. If a transmission destination is not obtained, the MAC address of the received MAC frame and an input port are related and the correspondence is stored in a route registration unit for later bridging. Alternatively, the MAC frame is broadcast to all the ports other than the receiving port.

Abstract: A system and method for connecting a call includes a signaling processor adapted to receive and process call signaling to select connections for a call. The signaling processor transmits control messages designating the selected connections. A controllable time division multiplex matrix receives control messages from the signaling processor and, in response to the control messages, makes connections for the call. The system and method may include an interworking unit that receives control messages from the signaling processor and, in response to the control messages, interworks the calls to selected connections. The system and method may include an asynchronous transfer mode matrix that receives control messages from the signaling processor and, in response to the control messages, connects the calls to selected connections.

Abstract: A method of processing data packets includes receiving a plurality of the data packets at a selected node. Pertinent information in the data packets is extracted. The pertinent information is pertinent to the selected node. A plurality of response data packets are generated based on the pertinent information. The extracting and generating steps are performed without use of a microprocessor.

Abstract: In a router and a communication network system reserving network resources in compliance with an RSVP (Resource ReSerVation Protocol), that is a protocol for resource reservation, a router stores an encapsulated destination address associated with an address of a second host upon encapsulating and transferring a packet addressed to the second host, transfers a first path message transmitted from a first host to make a resource reservation in compliance with a resource reservation protocol, obtains thereafter the encapsulated destination address from the address of the second host, and transmits a second path message in a non-capsulated state to make a resource reservation with the same communication quality as that of the first path message to the encapsulated destination address.

Abstract: The present invention is related to video encoding. In an embodiment, a first instruction stored in processor readable memory is configured to generate forward error correction data for selected portions of packet data from a plurality of frame packets. A second instruction stored in processor readable memory is configured to store the forward error correction data in a first packet separate from the plurality of frame packets. A third instruction stored in processor readable memory is configured to identify the first packet with a user data identifier code. The separate packet is optionally compliant with MPEG-4.

Abstract: An automatic baselining process for business bandwidth measures business bandwidth as monitored by a plurality of bandwidth monitoring devices positioned throughout a networked environment. The process includes autodiscovery of the business bandwidth sources and sinks (destinations), autolearning application bandwidth and utilization therefrom, and autobaselining end-to-end bandwidth. Autopartitioning of the observed data and end-to-end top level service level agreements into specific component metrics is also possible.

Abstract: Broadband switching including the implementation of and control over a massive sub-microsecond switching fabric. To effect the attributes of the switching fabric, conditionally nonblocking components are used a building-blocks in an interconnection network which is recursively constructed. The properties of the interconnection network are preserved during each recursion to thereby configure the massive switching fabric from scalable circuitry.

Abstract: A method and apparatus for selective routing of a multi-recipient communication from an origin domain to a destination domain within a communications network. An exit routing station added to the origin domain receives a datagram including content data intended for multi-recipient delivery in the destination domain. The exit routing station modifies the datagram for routing to the destination domain, and transmits it to the entry routing station. This enables delivery to the destination domain by other than multi-recipient techniques. An entry routing station added to the destination domain modifies the datagram for multi-recipient delivery in the destination domain and initiates multi-recipient delivery. The destination domain's entry routing station may modify the datagram with information specific to the destination domain and unknown to the origin domain.

Abstract: An xDSL accommodation apparatus includes an xDSL interface, exchange switch, and cache server. The xDSL interface interfaces an xDSL (any types of Digital Subscriber Line) to which each of a plurality of clients is connected. The exchange switch exchanges a packet transmitted/received between a content server and a client. The cache server temporarily stores a content received from the content server through a network. The cache server includes a copy/distribution section. The copy/distribution section copies and distributes the stored content to distribute the same content to the plurality of clients. A multicast distribution system and data distribution method are also disclose.

Abstract: A system and method for enabling the interchange of enterprise data through an open platform is disclosed. This open platform can be based on a standardized interface that enables parties to easily connect to and use the network. Services operating as senders, recipients, and in-transit parties can therefore leverage a framework that overlays a public network.

Abstract: Header information is stored in a data register through an external interface, branch condition information including a classification order is stored in a branch condition register and information about a combination of fields of classification conditions to be applied is stored in a combination register. A conversion circuit and a sequencer extract only a necessary field from header information to generate a search key based on the branch condition information and the combination information. A CAM controller conducts search processing for a CAM by using the search key. The sequencer determines whether there exists packet classification to be executed next based on a search result and the branch condition information.

Abstract: In-sequence media packets that arrive at a media server are processed immediately, and a buffer at the media server is checked for packets whose processing was previously deferred due to out-of-sequence arrival. Any in-sequence packets in the buffer are also processed and forwarded immediately after the processing and forwarding of the received in-sequence packet. Processing and forwarding are deferred for out-of-sequence packets, i.e., packets that are higher in the sequence than the next expected packet, by placing the out-of-sequence packets in the buffer. When a packet is placed in the buffer, a timer is initiated for the missing packet(s). If a pre-determined time passes without the receipt of a missing packet, the missing packet is declared lost and the next-in-sequence received packet is processed and forwarded toward the destination.

Abstract: A system and method for facilitating both in-order and out-of-order packet reception in a SAN includes requestor and responder nodes that maintain local copies of a message sequence number. Each request packet includes an ordering field specifying whether the packets must be received in-order. The request node includes a copy of the local sequence number in each packet transmitted and increments its local copy of the sequence number only for packets that must be received in order. The responder node includes the received message sequence number in all response packets and increments its local copy of the message sequence number only if the ordering field specifies that the packets must be received in order.

Abstract: The combination of narrowband applications with broadband transport may be enabled with a communications architecture, in which one or more Media Gateways (MGs) that include broadband switching fabric are controlled by a Media Gateway Controller (MGC) that includes switching intelligence and narrowband switching fabric. A new data structure is provided in the MGC to identify bandwidth allocation on all traffic trunks interconnecting MGs controlled by the MGC. The new data structure can further maintain quality data representing the quality of packet transmissions in the broadband network data. The new data structure enables the MGC to monitor congestion in the broadband network and to allocate bandwidth more efficiently.

Abstract: A method of sending data packets through a Multiple Protocol Label Switching MPLS network is provided. It comprises assigning to each packet a quality of service (QoS) class flag, then routing each packet through the MPLS network dependent on the QoS class flag assigned.

Abstract: A packet control function (PCF) in a wireless communication network comprises a scalable architecture allowing independently addressable packet data serving node (PDSN) interfaces to be added as needed or desired. Each interface functions as an independent IP interface supporting data connections between one or more base station controllers (BSCs) supported by the PCF and the PDSN. With this implementation, a single PCF appears to the PDSN as one or more “pseudo PCFs” depending upon the number of IP interfaces implemented in the PCF. Each IP interface supports a given data throughput capacity so that the aggregate data throughput capacity of the PCF may be scaled as a function of the number of IP interfaces implemented within it. Load sharing and fault handling techniques implemented by the PCF further exploit the advantages gained from having multiple IP interfaces with the PDSN.

Abstract: Method for setting up an isochronous data stream connection between at least one entry terminal or talker and at least one addressee terminal or listener connected by at least one bridge of a digital bus networ.

Abstract: An identifier distinguishing unit 14 distinguishes what the identifier contained in a packet is. A VC search processing unit 13 searches the identifier/VC management table 12 using that identifier as the search character sequence. A VC selecting unit 15 selects an ATM VC for use in transmission on the basis of the ID information on ATM VCs resulting from the search. A cell formation processing unit 16 subjects the packet to ATM self format conversion processing. A frame formation processing unit 24 regenerates individual packets from packet information. A VC distinguishing unit 25 distinguishes the ID information on ATM VCs pertaining to each individual packet. An identifier search processing unit 23 searches the VC/identifier management table 22 using the ID information on ATM VCs as the search character sequence. An identifier assigning unit 26 assigns the identifier resulting from the search to the packet, and supplies that packet.

Abstract: A bridge for communicating between a first and a second bus includes a first interface unit, a second interface unit and a buffer unit. The first interface unit is adapted to be coupled to the first bus. The second interface unit is adapted to be coupled to the second bus. The buffer unit is coupled to the first and second interface units. The buffer unit is adapted to receive a posted transaction from one of the first and second interface units. The buffer unit includes a posting buffer and a discard timer. The posting buffer is adapted to store the posted transaction. The discard timer is adapted to generate a discard timer expired signal after a predetermined time interval that the posted transaction has resided in the posting buffer. A method for exiting from a potential deadlock situation includes posting a transaction, tracking the length of time the transaction has been posted, and discarding the transaction after a predetermined time interval that the transaction has been posted.

Abstract: Stations of a communication network have internal queues for accumulating and transmitting data messages over a shared communication channel. Each queue within a station accumulates and transmits data messages that have a different level of priority than those accumulated and transmitted by other internal queues of that station. While preferential access to the shared channel is given to data messages having higher levels of priority, data messages having the same priority are transmitted according to a set of rules common to all of the stations. That is, a queue in one of the stations is configured to delay and/or transmit data messages of a given priority level according to a set of rules that applies identically to the queue of any other station that handles data messages of that same priority level. Transmission opportunities are thus fairly allocated between all queues containing data messages of the same priority level.

Abstract: An input port for a network switch includes a cell buffer for receiving incoming unicast and multicast cells and for writing each cell into an internal cell memory. The cell buffer thereafter forwards each unicast cell from the cell memory to one network switch output port and forwards a separate copy of each multicast cell to each of several network switch output ports. When the cell buffer writes a unicast cell to the cell memory, it sends a pointer to the storage location of the unicast cell to a queue manager. When the cell buffer writes a multicast cell to the cell memory, it sends several pointers to the queue manager, one for each output port that is to receive a copy of the multicast cell, with each pointer pointing not to the multicast cell's storage location but to an empty storage location in the cell memory. The cell buffer also maintains a database relating each pointer it sent to the queue manager to an actual storage location of a unicast or multicast cell.

Abstract: In a clock-synchronously operated semiconductor memory, particularly a DDR SDRAM, data are read in clock-synchronously with respect to a data strobe signal in the normal mode, according to standard. During the test mode, a DQ receiver is supplied with the operating clock signal instead of the DQS signal. A downstream memory element is bridged by a direct signal path. To change over, multiplexers/demultiplexers driven by the test mode control signal are provided. The data signal supplied to the memory cell array is available immediately after a write command has been applied to the memory cell array.

Abstract: A method and apparatus are presented for operating a time slicing shared memory switch. The apparatus includes a bus for receiving a plurality of data frames in a respective plurality of input channels to the switch. A slice crosspoint applies the plurality of data frames to a shared memory in a time sliced manner. The time slice is established for each section of a shared memory to be staggered so that on any clock cycle, one memory portion is being accessed for writing at least some of the data frames and on a next clock cycle the memory portion is accessed for reading at least a portion of the data.

Abstract: A method and system is provided for routing at least one message from one or more subscribers of a communications network in a network node, the network node having a plurality of processing cards (Pcards). First, at least one Pcard is designated to service messages from a predetermined set of subscribers. When receiving a message from a subscriber of the predetermined set, the Pcard that is designated for the subscriber is determined and the received message is routed to the determined Pcard. The Pcard also has an associated database containing profile information for the subscribers using the Pcard.

Abstract: In a network packet router having one or more ingress and egress ports, a method is implemented at an ingress port for egress pass/drop determination for packets, comprising the steps of (a) noting header combinations and values, and egress port destination for incoming packets; (b) comparing the header combinations and values with rule sets associated with the header combinations and values including egress port identities, and (c) returning a determination of pass or drop for the packet.

Abstract: Transferring data (such as files) on an end-to-end, high-speed packet-switched network connection (a “virtual circuit”) or on a circuit. An out-of-band path is used for signaling and status messages (control). The same, or a separate, out-of-band path may be used to retransmit chunks of data that were received with errors or that were not received at all. By simplifying the data being sent over the high-speed (virtual) circuit, the resources of the (virtual) circuit are used efficiently since less overhead is required. Further, since the size of the file to be transferred can be predetermined, and since any retransmissions can be made over a path other than the (virtual) circuit, the (virtual) circuit that best meets the needs of the data transfer can be selected, thereby further increasing the efficiency with which the (virtual) circuit is used.

Abstract: An architecture for providing high-speed access over frequency-division multiplexed (FDM) channels allows transmission of ethernet frames and/or other data across a cable transmission network or other form of FDM transport. The architecture involves downstream and upstream FDM multiplexing techniques to allow contemporaneous, parallel communications across a plurality of frequency channels. Each downstream data flow is fragmented into individual octets that are multiplexed into MPEG packets. An MPEG packet may carry the octets for a plurality of individual data flows. Furthermore, the MPEG packets may be frequency-division multiplexed across and may be contemporaneously communicated over a plurality of frequency channels. Also, the octets from a data flow do not necessarily have to use consecutive octets in an MPEG packet. Instead, consecutive octets in an MPEG packet may carry information for two different data flows.

Abstract: A method for providing a subnet identifier to a client node joining into the subnet includes communication modules in host and client nodes. In the host node, the communication module includes identifier storing means; mode setup means for setting up a response mode; response means for determining whether to respond according to the setup response mode upon receipt of an identifier request signal; a transceiver; condition input means selectively activated according to the setup response mode for inputting a node identifier; and condition determining means for comparing the node identifier included in the received identifier request signal with the node identifier inputted by the condition input means. In the client node, a communication module includes identifier generating means; a transceiver; a determining means for determining whether the data received through the transceiver is a response signal to its broadcasted identifier request signal; and an identifier storing means.

Abstract: Apparatus, and an associated method, for facilitating communications in a radio communication system that utilizes shared, packet channels. One or more common control channels are defined upon a forward link extending between a network part of the radio communication system and the mobile stations thereof. Assignment information sets so generated by an assignment information generator and formatted into data frames for communication to the mobile stations. The mobile stations monitor a single shared packet control channel to receive the assignment information sent thereto upon the common shared channel.

Abstract: A data communication system includes a plurality of terminal apparatuses #1-#n for periodically transmitting data and retrieving desired data accommodated in at least one time slot in received multiplex data, and a data storage and distribution apparatus for subjecting received data from the plurality of terminal apparatuses to time division multiplexing so as to produce time slots each corresponding to a respective one of the plurality of terminal apparatuses, reproducing resultant multiplex data, and distributing the multiplex data to the plurality of terminal apparatuses.

Abstract: A method for transmitting data in a centralized data communications system having an access point and a plurality of stations using a carrier sense multiplexing access (CSMA) method using a backoff number control preferably includes (a) receiving a multi-poll message containing backoff numbers to be assigned to each station by the access point; (b) setting the backoff numbers of the multi-poll message to the backoff numbers of the stations; and (c) counting down the set backoff numbers and transmitting data. Each station that desires polling registers a station ID and a polling cycle, sets a backoff number contained in a multi-poll message, counts the backoff number, and if the backoff number becomes zero, transmits data such that contention between stations is prevented.

Abstract: In a packet processor and a packet processor system for performing predetermined packet processing for an inputted packet in a packet relaying apparatus or the like, a packet data holder sequentially receives a packet from its head; an execution program holder holds a program in which a processing procedure of the packet is described; and a program execution controller determines a command number of a program to be executed based on a provided packet length and the program, and controls an execution of the program. Also, the program execution controller instructs the program execution controller of at least one of the packet processors at a preceding stage and a following stage of a command acquisition timing and a command acquisition position.

Abstract: A method and a transceiver for selecting a current transmission mode in a data packet oriented communication system involves measuring a current radio link quality for the radio link; estimating on the lower layer a first status value corresponding to a state of the automatic request buffer on the higher layer; determining on said lower layer a second status value corresponding to a state of the automatic request buffer on said lower layer; calculating for said lower layer a target transmission rate based on the first and the second status values; identifying from the set of the available transmission modes a subset of transmission modes, each providing a maximum transmission of data packets for radio link quality values lower than the current radio link quality; and selecting from said subset a transmission mode as the current transmission mode, which provides a transmission rate closest to the calculated target transmission rate.

Abstract: It is one object of the present invention to provide a communication control terminal apparatus that can employ one CPU to control two or more communications having the same or different protocols to be executed, at the same time without adversely affecting each other, and a storage medium on which a program therefor is stored.

Abstract: An architecture for providing high-speed access over frequency-division multiplexed (FDM) channels allows transmission of ethernet frames and/or other data across a cable transmission network or other form of FDM transport. The architecture involves downstream and upstream FDM multiplexing techniques to allow contemporaneous, parallel communications across a plurality of frequency channels. Furthermore, the architecture allows a central concentrator to support a plurality of remote devices that each have guaranteed bandwidth through connection-oriented allocations of bi-directional data flows. The upstream and downstream bandwidth allocation can support symmetrical bandwidth as well as asymmetrical bandwidth in either direction. The architecture generally can be used to support connection-oriented physical layer connectivity between a remote device and the central concentrator.

Abstract: A method for reducing the amount of overhead information being added to a data packet by multiplexing IP (Internet Protocol) data packets within a MPLS (Multi Protocol Label Switching) frame, thereby reducing the amount of overhead information associated with subsequent protocol layers being added to the data packet. In one embodiment, the method utilizes a target size to limit the number of IP data packets which may be multiplexed within a MPLS frame and a timer to limit the delay in transmission of IP data packets.