Abstract: A communications network (100) includes a first node (110) and a group of neighboring nodes (110). The first node (110) includes at least one transceiver (340). The first node (110) may observe one or more conditions in at least one of the communications network (100) and the first node (110) and select a sleep mode of a group of sleep modes based on the observed one or more conditions. Each sleep mode of the group of sleep modes may be associated with a different procedure. The first node (110) may power down the at least one transceiver (340) according to the procedure associated with the selected sleep mode.

Abstract: A wireless communication network is disclosed comprising a base station system, a switching system, and a transport network. The transport network comprises a conventional signaling network configured to transport call signaling and a bearer network configured to transport user communications. The bearer network also transports call signaling, as special connections are established and a portion of the capacity of the special connections are reserved for transporting call signaling. In response to receiving call signaling from a mobile wireless device or a packet data network, the base station system or the switching system determines if the call signaling is for a low latency service. If the call signaling is for a low latency service, then the base station system or the switching system forwards the call signaling over the special connection. If not, then the base station system or the switching system transmits the call signaling over the conventional signaling network.

Abstract: A time adjustment method, a time stamping method and a telecommunication system are provided. The invention is based on performing a power measurement in the base station on a signal generated in the base station, and providing the signal with time characteristics proportional to a time reference received in the base station. Embodiments of the invention enable accurate synchronization of a base station and precise positioning of mobile stations.

Abstract: The invention includes, among other things, a system for passing TDM traffic through a packet switch. In one embodiment, the system includes a packet switch that has a plurality of data ports and is capable of routing FSDU packets between the plurality of data ports. A TDM encapsulation circuit process a TDM data flow that is incoming to the switch. A circuit demultiplexer processes the incoming data flow to buffer data associated with different TDM circuits into different buffer locations. A timer monitors the amount of time available to fill the FSDU, and when the time period reaches the frame boundary, an FSDU generator generates an FSDU that is filled with data associated with the TDM circuits. Header information is added for allowing the packet switch to route the generated FSDU to a port associated with the respective TDM circuit.

Abstract: Telecommunications system and method supporting a plurality of data rates are disclosed. The system includes an adjusting device that adjusts a target signal-to-interference ratio of a closed-loop power control to match a data rate applied in transmission of a dedicated channel. The system provides data-rate-sensitive power control thus to increase the accuracy of the power control and to improve the performance of the telecommunications system.

Abstract: When OFDM signals are transmitted from a plurality of antennas, a pilot carrier is transmitted from one antenna among the plurality of antennas, and a null signal is transmitted from an antenna other than that antenna by a subcarrier of the frequency band that transmits the pilot carrier.

Abstract: A transmission system can perform flow control even if a flow control instruction is invalidated, and even when the transmission system malfunctions, it can autonomously recover to normal operation for communications. A flow control instruction sender has at least one of two functions including a normal transmission mode to send a flow control instruction for flow control over a congestion state if an event, such as the occurrence of a congestion or the removal of a congestion, occurs when a data receiver receives data, and an autonomous transmission mode to select one of a plurality of congestion states at present in each period and autonomously send a flow control instruction corresponding to the selected congestion state. The flow control instruction sender preferentially sends a flow control instruction in the normal transmission mode in which a congestion actually occurs or is actually removed, when timings of the normal transmission mode and the autonomous transmission mode coincide with each other.

Abstract: An aspect of the present invention provides a method of controlling a multi-layer transport network. In accordance with the invention a determination is made as to whether a connection supporting a performance requirement of a call can be established within a first layer of the network. If the connection cannot be established, an association is defined between the call and a second call instantiated within a respective server layer of the network. By this means a network call controller in a client layer relies on a call and connection in a server layer instead of a connection in the client layer.

Abstract: A data transmission method of a GPRS includes estimating a possibility of an impending stall state of a transmit window, transmitting a stall state alarm signal of the transmit window to a network if it is predicted that the stall state of the transmit window is approaching, and controlling data transmissions according to whether an ACK signal for the stall state alarm signal is received or not from the network. Notification of the possibility of the stall state of the transmit window is provided at least once and preferably twice to the network before stall actually occurs, thereby reducing the number of occurrences of the transmit window's stall state. As a result, waste of network resources due to re-transmission performed in the stall state is minimized.

Abstract: A plurality of information processing terminals 100 to 130 are connected to a network. Each processing terminal parameter-manages the total of the idle time units obtained through the detection of the idle time on the network. The processing terminal acquires a transmission privilege when the parameter and its own node ID agree with each other, and sends out the transmission frame inclusive of its own node ID to the network. The reception means 105 receives, from the network, the transmission frame transmitted from the other information processing terminals. The control means 103 extracts the node ID included in the transmission frame thus received and updates the parameter to the node thus extracted, and adjusts the synchronization of the parameters commonly possessed on the same network. In accordance with such a configuration, the transmission privilege can be rounded without exchanging a token frame between specified nodes.

Abstract: A Multiservice Access Concentrator (MAC) provides traffic shaping by allocating at least one cell stream to at least one cell slot of a cell scheduling table. A cell slot and a corresponding cell stream are designated in response to a cell interrupt signal generated following cell transmission. At least one counter and at least one credit buffer are maintained, and a service class of the designated cell stream is determined. The size of the credit buffer is determined by a maximum burst cell size (MBC) of the corresponding cell stream and virtual circuit (VC). A cell of the designated cell stream is transmitted in response to the determined service class and a count of the at least one counter and contents of the at least one credit buffer. Therefore, cells are transmitted based on cell credits. A virtual circuit (VC) builds cell credit based on the sustained cell rate (SCR) of the VC. Cell credit is consumed as cells are transmitted.

Abstract: A method for transmitting digital voice data packets between voice data inputs of a plurality of channels (A B, C, D) and a transmitter comprises the following steps: compressing the voice data packets to compressed data packets in a vocoder assigned to every channel, feeding the compressed data packets of every channel to a control device, unsolicited, unsynchronized transmission of the compressed data packets on a data bus common to all channels from the control device to a processor assigned to the transmitter, combining a defined number of compressed data packets of a certain channel which have been transmitted last on the data bus to a transmission block by means of a processor, a last compressed data packet being fed to the transmission block only when the transmission of the transmission block has already started.

Abstract: A method determines the data rate of traffic data to be transmitted from a mobile station to a base station in a mobile communication system, by considering a delay time required for the generation and transfer of data rate control information. The method includes steps of transmitting control information to the base station, the control information corresponding to the traffic data of an ith frame, the ith frame having a predetermined data rate; receiving, in response to the transmitted control information, data rate control information from the base station, the data rate control information including an instruction; and determining a maximum data rate of the traffic data to be transmitted during a next frame, by applying the instruction of the data rate control information to the predetermined data rate of the ith frame.

Abstract: A first wireless LAN base station is in an active state. A second wireless LAN base station is in a power off state or a power save mode. The first wireless LAN base station and the second wireless LAN base station are disposed in the same support area. When a fault occurs in the first wireless LAN base station and a communication state of the wireless LAN deteriorates, the first wireless LAN base station detects the fault and places the second wireless LAN base station in the active state. When the first wireless LAN base station confirms that the second wireless LAN base station has been placed in the active state, the first wireless LAN base station sends setting thereof to the second wireless LAN base station. When the first wireless LAN base station confirms that the setting of the second wireless LAN base station is the same as the setting of the first wireless LAN base station, the first wireless LAN base station enters the power off state or the power save mode.

Abstract: A method and system for implicitly controlling the floor during a packet-based real-time media conference. A participating station implicitly requests the floor by simply beginning to send media to the conference server. If no other participant currently holds the floor, the server grants the floor to the first station from which the server receives an incoming media stream. Further, in a half-duplex conference, if a participating station receives an incoming media stream when it is sending an outgoing media stream, the station treats the incoming media stream as an implicit floor denial and responsively alerts a user that the floor is denied.

Abstract: A packet switched IP call to a mobile user device in a wireless network is supported where the mobile user does not have a static IP address and where the mobile user is not engaged in communications in which an IP address is currently assigned. The originating party utilizes the directory number of the mobile user to initiate the packet switched call with at least an originating packet being directed to a home agent in the wireless network. The home agent assigns a temporary IP address to the mobile user's UE and translates packets addressed to the user's directory number to the assigned IP address. A switching node forwards the assigned IP addressed packets to the corresponding UE.

Abstract: In an MPEG-2 decoding system, a transport decoder decodes a transport packet corresponding to a Program Identification (PID) from an input transport stream, and retrieves a Program Association Table/Program Map Table PAT/PMT) from the stream when it is requested to retrieve Program Specific lnformation (PSI). A pre-decoder checks PSI stored in a PSI memory in response to a request to change to a desired channnel, reads PIDs of transport packets for a Packetized Elementary Stream (PES) of a program corresponding to the desired channel from the PSI memory to provide it to the transport decoder, receives the PAT/PMT and updates the contents of the memory using the PAT/PMT. After decoding, PSI previously extracted therefrom is stored in the memory. PIDs of transport packets for the PES of desired program are obtained referring to the stored PSI, and transport packets having the PIDs are retrieved and decoded.

Abstract: A method of communicating over a network of nodes is disclosed. According to the method, it is determined whether a first node forms part of an interconnected sub-network within the network. Broadcast slots are assigned to the first node if the first node is part of the sub-network. The first node is permitted to use the assigned broadcast slots to broadcast data to other nodes. Nodes within one hop of the first node but not forming part of the sub-network are permitted to use an assigned broadcast slot if the first node is not using the broadcast slot.

Abstract: A NAPT apparatus and method implemented with hardware circuits inside a network switch controller is provided. The NAPT apparatus comprises: a translation table for storing related information of NAPT connections; an IP table for storing available translated IPs; a packet parser for receiving a packet to be performed NAPT, parsing related fields of the packet, and generating part of required indexes according to transmission direction of the packet; and a packet translation module for performing NAPT. For a forward packet, the NAPT method employs an indexing means of the translation table and IP table and a recording means to generate a translated IP and a translated port number of the forward packet. For a backward packet, a restoring action corresponding to the recording means is performed to restore required values, thereby checking validity of the backward packet and performing subsequent NAPT.

Abstract: A method and system of sending supplemental information during a telecommunications session includes the step (305) of detecting a period of silence within the telecommunications session. The period of silence can be detected from at least one member of the telecommunications session. Comfort noise can be specified within at least one time slot (205) of a plurality of consecutive time slots (205, 210) for a channel over which the period of silence is detected. For at least one other time slot of the channel (210), non-voice data is specified such that the channel includes both comfort noise and other non-voice data during the period of silence. The consecutive time slots (205, 210) can be associated with a data block (200). The non-voice data can be a data payload of the other time slot (210).