Abstract: Systems and methodologies are described that facilitate reducing battery consumption during periods of inactivity intermixed with traffic bursts in wireless communications systems. A semi-connected mode is provided that fast recognition of mobile devices upon wakeup and access while enabling mobile devices to operate in reduce power states. A mobile device operates in a semi-connected mode with all base stations in an active set of the mobile device. Moreover, mechanisms are provided to notify mobile devices of pending data while avoiding latency associated with paging channels.

Abstract: A beltway mechanism that takes advantage of atomic locking mechanisms supported by certain classes of hardware processors to handle the tasks that require atomic access to data structures while also reducing the overhead associated with these atomic locking mechanisms. The beltway mechanisms described herein can be used to control access to software and hardware facilities in an efficient manner.

Abstract: In one embodiment, a system is provided to restrict VoIP communication. The system may validate a Voice over Internet Protocol (VoIP) call initiation message based on demonstrated knowledge of a Public Switched Telephone Network (PSTN) call.

Abstract: Systems and methods for gathering distributed information to improve routing that uses Anycast for assigning deliveries between a number of geographically-distant points of presence (POPs) are disclosed. The POPs share the same Internet protocol (IP) address. According to Anycast resolution, the Internet aids in assigning a content request initially to a POP. Delivery statistics are gathered from deliveries a the number of POPs and possibly other sources. Where it is determined that Anycast found the wrong POP, the content request is reassigned to another POP.

Abstract: A fiber node may include a cable modem termination system (CMTS) that includes a first receiver to receive first signals from a plurality of cable modems over a plurality of upstream channels, and extract data from the first signals; a second receiver to receive second signals, the second signals being in a different format than the first signals; and a processor, connected to the first receiver and the second receiver, to receive the extracted data from the first receiver, receive the second signals from the second receiver, compress the extracted data and the second signals, merge the extracted data and the second signals, and transmit, to an upstream facility, the merged extracted data and the second signals over a common network path.

Abstract: A process for secure distribution of original digital audiovisual streams including audio, video components or other data, including packetizing the original stream into packets that can be manipulated and have a flexible size, wherein each packet includes a header containing information about the packet and a useful load including part of the data of the stream, analyzing the packetized stream prior to transmission to client equipment to generate a main stream in conformity with a packetized format of the original stream, modified in that all or part of the packets were substituted by packets of the same structure, but whose content was modified, and generating complementary information with any format suitable to permit reconstruction of the original stream, and separately transmitting the modified main stream and complementary information generated from the server to addressed equipment.

Abstract: A mobile device establishes communication with a number of wireless cellular networks at particular locations and records the locations and network information associated with the wireless cellular networks. The network information can be used to narrow a search for an available wireless cellular network from a plurality of potentially available wireless cellular networks when the mobile device is operating at a stored location. In one aspect, a Radio Frequency (RF) receiver on a mobile device can receive a broadcast radio signal from a transmitter and use the signal to determine an approximate location of the device based on a known location of the transmitter. A match between the approximate device location and wireless cellular network transmitters in communication range of the mobile device can be used to narrow a search for wireless cellular networks.

Abstract: A method and apparatus for transmitting and receiving data in an Orthogonal Frequency Division Multiplexing (OFDM) system are provided, in which a Base Station (BS) generates a signal of a broadcast channel, determines whether the broadcast channel signal includes Reference Symbols (RSs) used for channel estimation, determines to apply a maximal puncturing pattern to a Resource Block that defines the broadcast channel, if the broadcast channel signal includes Rs, includes puncturing information about a downlink signal in the broadcast channel signal, maps the broadcast channel signal including the puncturing information to Resource Elements according to the maximal puncturing pattern, and transmits the mapped broadcast channel signal.

Abstract: Embodiments provide methods, apparatuses, and systems for efficient control signaling over shared communication channels with wide dynamic range. Some embodiments includes a gateway configured to encode and to transmit multiple physical layer headers, including a first physical layer header and a second physical layer header. The first physical layer header may span a first length and represent a first modcode; the second physical layer header may span a second length and represent a second modcode. The second length may be longer than the first length. Embodiments may include multiple terminals in wireless communication with the gateway via satellite, including a first terminal configured to decode the first physical layer header and to determine the first modcode. Embodiments may include a second terminal configured to decode the second physical layer header and determine the second modcode.

Abstract: Wireless radio devices that communicate in close proximity to each other typically suffer from interference. Such interference between the wireless radio devices can result in performance degradation in either/both the wireless radio devices. Functionality can be implemented to schedule communications of one wireless radio device around communications of the other wireless radio device based on a coexistence table comprising scheduling information of the other wireless radio device. Communications of the wireless radio devices can also be controlled based on communication priorities. Functionality can also be implemented to dynamically control a number of packets transmitted in an aggregate based on the scheduling information.

Abstract: A call control device, which controls call connections between a plurality of terminals, includes a device information storage unit that stores device information on call-connectable terminals; a call request accepting unit that accepts a call request from one terminal to another terminal; a determining unit that determines, when the call request accepting unit accepts a call request, whether the device information on the other terminal is stored in the device information storage unit; a holding unit that holds a call state of the one terminal when the determining unit determines that device information on the other terminal is not stored in the device information storage unit; a state acquiring unit that acquires state information indicating a state of the other terminal; and a holding tone setting unit that sets a holding tone to be transmitted to the one terminal associated with the state information acquired by the state acquiring unit.

Abstract: Overhead of signaling for retransmission control using a multiple codeword is decreased and throughput is improved. A radio communication apparatus performs data transmission by using the multiple codeword, and includes a reception device having a MIMO demodulation section 15 for demodulating data transmitted by the multiple codeword and an ACK/NACK generation section 21 for generating an ACK/NACK signal corresponding to the demodulation result of the demodulated data of respective codewords. The ACK/NACK generation section 21 allocates less resource to a signal corresponding to a low-order code word having a lower quality, and allocates more resource to a signal for a high-order codeword having a higher quality, thereby generating the ACK/NACK signal.

Abstract: A base station transmitter for a broadcast/multicast single frequency network may include a base station component configured to randomize a phase of the signal for the base station transmitter to transmit, wherein the base station transmitter is configured to transmit a signal having a frequency common to a frequency of a signal sent by another base station component in the network. A method for improving performance of single frequency networks may include transmitting single frequency signals from base stations with pseudo-random phases including in the signals, data that permits a receiver compatible with the network to synchronously replicate the pseudo-random phases used in the transmission of the single frequency signals.

Abstract: The present method groups a transmission data stream, taking a combination of data bits to be transmitted from a part or all of the plurality of transmission antennas at the same time as one group; and performs transmission processing, including at least either of bit repetition processing or retransmission processing by the unit of the group (bit combination). As a result, in MIMO communication, etc., it is possible to suppress deterioration of reception characteristic due to vanishing of correlation among bits transmitted at the same time.

Abstract: A system and method for performing Scheduling Assignments (SAs) for User Equipments (UEs) at a base station of a communication system by accounting for the different operating conditions UEs may experience or for the different data rates or data packet sizes UEs may require. This reduces a total size of SAs by introducing compact SAs, in addition to full SAs. For compact SAs, the range for the resource allocation or for the spectral efficiency of the signal transmission is restricted or some fields that exist in the full SA are eliminated without adversely impacting scheduling flexibility or system throughput. By reducing the total size of SAs through the use of compact SAs, the corresponding control signaling overhead is reduced, which improves system throughput, improves scheduling flexibility, or improves coverage.

Abstract: In one embodiment, an apparatus may verify an identity of a destination Voice-over-Internet-Protocol (VoIP) call agent for a destination telephone number based on demonstrated knowledge of at least one public switched telephone network (PSTN) call initiated to the destination telephone number. The apparatus may also receive the identity of the destination VoIP call agent based on the demonstrated knowledge of the at least one PSTN call initiated to the destination telephone number.

Abstract: Provided is a method and apparatus for facilitating push communication from a first network to a target device of a second network, the second network comprising a packet service network such as a GPRS core network. A private IP address, usable for addressing the target device when the packet service network is in an activated state with respect thereto, is retained. Upon receipt of a first message from the first network, indicative of a push communication for the target device, the packet service network is disposed into the activated state, and a second message, addressed to the private IP address, is transmitted. The second message may be generated by a NAT configured to implement micro-port forwarding. The second message may be generated by a representative device of the second network, configured to receive the first message via a NAT in response to a query generated by the representative device.

Abstract: In one embodiment, an apparatus may receive at least one call attribute of a public switched telephone network (PSTN) call initiated to a destination telephone number. The apparatus may verify a destination Voice-over-Internet-Protocol (VoIP) call agent for the destination telephone number based on demonstrated knowledge of the PSTN call. The apparatus may transmit an indication the destination VoIP call agent is verified for the destination telephone number.

Abstract: A system for verifying VoIP call routing information. The system may include an apparatus integrated with a private branch exchange (PBX). The apparatus may store at least one call attribute of a public switched telephone network (PSTN) call initiated to a destination telephone number. The apparatus may verify a destination Voice-over-Internet-Protocol (VoIP) call agent for the destination telephone number based on demonstrated knowledge of the PSTN call. The apparatus may route a new call either over a VoIP network to the destination VoIP call agent or over a circuit switched network based on whether the destination VoIP call agent is verified for the destination telephone number.

Abstract: A method for optimally serving Stations (STA) on Wireless Local Area Network (LAN) using a Controlled Contention/Resource Reservation protocol of the IEEE 802.11e standard. The Wireless LAN includes multiple STAs, mobile or Stationary, airlinked to an access point as a Basic Service Set (BSS). A Hybrid Coordinator (HC) is co-located with the access point for allocating the bandwidth for the BSS using a Controlled Contention/Resource Reservation protocol defined in the IEEE Standard 802.11(e). The HC transmits Contention Control (CC) frames and initiates Controlled Contention Intervals (CCI) having a selected number of slotted intervals. HC receives Resource Reservations (RR) detailing bandwidth needs from STA contenders during a specified time interval called the Controlled Contention Interval (CCI.). Several parameters are installed in each CC for contention control purpose.