174 results about "Transmission (telecommunications)" patented technology

A method and apparatus are disclosed that seek to improve the quality of service that is experienced during the transmission of a stream of packets across one or more paths. In particular, a transmitting node encodes a source stream of data (e.g., audio, video, etc.) into one or more sub-streams, and distributes those sub-streams onto multiple network transmission paths. In accordance with the illustrative embodiment of the present invention, the transmitting node evaluates the quality of service of a first network path that fails to provide a quality-of-service guarantee. When the quality of service of the first network path becomes unsatisfactory, the coding of one or more sub-streams that are being transmitted on a second network path is adjusted. In other words, the coding on a second channel is adjusted in response to the changing conditions on a first channel.

A method of handling the transmission of RLC PDUs from a Radio Access Network (RAN) of a mobile telecommunications system to User Equipment (UE). At a Gateway (GW) of the UTRAN, RLC SDUs are segmented into RLC PDUs for transmission to one or more Base Stations (BSs) of a set of BSs belonging to a handover link set, and RLC PDUs received from one or more of those BSs into RLC SDUs are combined for transmission to a core network of the system. At the or each said BS, RLC PDUs received from the GW and or the UE are buffered. An ARQ mechanism is implemented at the or each BS to facilitate reliable transmission of RLC PDUs between the UE and the GW.

The present invention relates to a charging method in a telecommunications system (TS) when information is being transmitted in a generic radio based access network (GRAN) to which two or more service networks (SN1, SN2, SN3) with different specified standards are connected. The access network comprises radio control units (RNC1-RNC5), each of which constitutes a connection point between the access network (GRAN) and at least one of the service networks (SN1-SN3). Charging parameters (DP10-DP12, DP20, DP30-DP33) representing charging agreements for the service networks' (SN1-SN3) utilization of the access network (GRAN) are stored in the radio control units. The method also comprises the following additional steps: A transmission request (B0) for information transmission is sent from the telecommunications station (TA) to the home network (SN1). A charging agreement for the requested information transmission is selected in the home network (SN1). Transmission of a connection request (B1a) for the establishment of a connection to the mobile unit (TE) from the home network (SN1) to a first radio control unit (RNC1) constituting a connection point between the access network (GRAN) and the home network (SN1); Transmission of a charging agreement pointer (P1a) from the home network (SN1) to the first radio transmission unit (RNC1). The pointer (P1a) points out charging parameters (DP11) representing the selected charging agreement.

The method and system operate to calibrate a transmission laser of the dense wavelength division multiplexer (DWDM) and to lock the laser to a selected transmission wavelength. In one example, the transmission laser is a widely tunable laser (WTL) to be tuned to one of a set of International Telecommunications Union (ITU) transmission grid lines for transmission through an optic fiber. To lock the WTL to an ITU grid line, a portion of the output beam from the WTL is routed through the etalon to split the beam into a set of transmission lines for detection by a detector. Another portion of the beam is routed directly to another detector. A wavelength-locking controller compares signals from the two detectors and adjusts the temperature of the etalon to align the wavelength of one of the transmission lines of the etalon with the wavelength of the output beam, then controls the WTL in a feedback loop to lock the laser to the etalon line. The wavelength-locking controller thereafter monitors the temperature of the etalon and keeps the temperature constant to prevent any wavelength drift in the etalon. In one example, the etalon is a silicon etalon configured to have finesse of about 20 and to provide a free spectral range of about 8 GHz. With these parameters, the system is able to lock the wavelength of the WTL to within a precision of about 0.2 GHz.

A method for performing Carrier Aggregation (CA) using spectrum shared between an incumbent user and a telecommunications network includes establishing a primary cell (PCell) for the secondary user in a portion of radio spectrum that is exclusively licensed to the telecommunications network, establishing a secondary cell (SCell) for the telecommunications network in a portion of the shared spectrum that is shared with the incumbent user, receiving schedule data for the incumbent user at a controller in communication with the incumbent user and a transmitter for the PCell and the SCell, scheduling transmissions for the PCell and the SCell to avoid interference to the incumbent user, and transmitting the scheduled transmissions through the PCell and the SCell using Carrier Aggregation (CA). Accordingly, one or more SCell in shared spectrum may be aggregated with a PCell in dedicated spectrum.

The present invention relates to a telecommunications system and method for connecting to a network and for routing data of a plurality of different data types between the network and subscriber terminals of the telecommunications system. The subscriber terminals are connectable to a central terminal of the telecommunications system via a transmission medium, the telecommunications system providing a number of communication channels arranged to utilize the transmission medium for transmission of data between the central terminal and the subscriber terminals. The telecommunications system comprises a transmitter having first transmission processing logic for employing a first transport mechanism to transmit data and second transmission processing logic for employing a second transport mechanism to transmit data. A switching element is then provided for routing data for transmission to either the first or second transmission processing logic dependent on first predetermined criteria, the first predetermined criteria comprising at least the data type of the data for transmission. In addition, a resource allocation logic is provided for determining based on second predetermined criteria which of the communication channels to allocate for use by the first transmission processing logic, and which of the communication channels to allocate for use by the second transmission processing logic. This approach provides a very flexible transmission mechanism for improving the efficiency of transmission of data through the telecommunications system.

A system for generating a schedule for use in triggering transmission of message content in a telecommunications network is provided. The system comprises a store for storing profiles of a plurality of recipients, and a plurality of message delivery campaigns with one or more criteria. The campaigns to be executed in relation to a given inventory, which may relate to a predetermined time period, may be arranged into one or more campaign clusters. A suitable allocation method may be used individually for each of said plurality of campaign clusters to allocate, among the plurality of recipients, target recipients for each of the campaign clusters based on campaign criteria and the profiles. The allocation process may be repeated to obtain, for example as high a number of messages as possible with the network resources available without exceeding a predetermined maximum number of messages per any given recipient. After the allocation process is completed, the campaign messages are delivered to the allocated target recipients via a communications network.

A technique is disclosed that enables a set of information to be represented by data packets, where those data packets can then be distributed as needed throughout the telecommunications system that uses the data. The data packet of the illustrative embodiment is an autonomous encapsulation of data, a subsection of a data model at a certain time in relation to other data in the system at another time. The data packet is identified at a particular time and value with a globally unique identifier. Relationships of the data packet to other data packets are made known by using references to the other packets. As a result, referenced data packets are retrieved throughout the system based on their relationships to each other. Whenever a data packet is transmitted or received, each node involved in the transmission applies rules that determine where the data has to be transmitted to and what to do with the data when received.

Communication control apparatus provided in nodes forming a telecommunications network includes a transmission timing calculator responsive to the state of the phase of the own node to determine a timing at which the node transmits data. The calculator is responsive to a state variable signal transmitted by a neighboring node and reflecting the phase of the neighboring node to change the state of the phase of the own node in accordance with a time development rule. The calculator monitors a phase difference of the own node against the neighboring node to calculate, based on the difference, the ratio of collision on data transmission timing between the own and neighboring nodes. The stress value corresponding to the collision ratio is stored time-serially. A stress response function value is generated such that the stored stress value causes the time development rule to shift the phase with its value made at random.

Aspects of the present invention include methods, apparatuses and systems that may be used for radio frequency and performance testing of communication equipment in a telecommunications network. According to one aspect of the invention, received data may be discarded during a test whenever a device being testing is unable to store the data, for example in a buffer. According to another aspect of the invention, the device being tested will provide data for transmission processing whenever there is an opportunity during the testing to transmit data, thus allowing the device to be aggressive in its data transmission.

A method, system and apparatus in a wireless communications system selectively utilizes the Internet for the transmission of information. In a first embodiment, a subscriber can activate an Internet call forwarding (ICF) supplementary service (SS). From the subscriber's Mobile Station, an ICF message is transmitted to and stored in the subscriber's Home Location Register (HLR). The ICF message may optionally designate an Internet protocol (IP) address destination and may optionally activate other features pursuant to the data type received. For example, the ICF message may request that only fax / data calls or only calls that would otherwise incur a long distance charge be forwarded over / through the Internet. In operation, an incoming call to a Gateway Mobile Services Switching Center (GMSC) causes the GMSC to interrogate the called party's HLR. The information in the incoming call is then forwarded either over / through the Internet or over the PSTN based on the features activated by the ICF message. In another embodiment, conventional telecommunication signaling commands such as the Initial Address Message may be transmitted to the target telecommunications node over the Internet.

In a telecommunications network including a gateway network element in communication with a control system and a user device, a system and method of controlling a data consumption rate of the user device including: a first control system node periodically transmitting a command to a second control system node, the message including information relating to a user's data usage, received from the gateway network node; in response to each command, the second control system node transmitting a reply message to the first control system node; controlling the transmission of the periodic commands according to a variable time interval; and the second control system node using the data usage information received in the periodic reply messages to control the data consumption of the user device. Preferably the control system conforms to a 3GPP Policy Charging Control Architecture and the first node is a PCEF and the second node is a PCRF. It is also preferable that the command is a DIAMETER protocol Accounting Request (ACR) command and the reply message is a DIAMETER protocol Accounting Answer (ACA) message.

A method of communicating data in a wireless telecommunications system between plural base stations and plural terminal devices using plural Orthogonal Frequency Division Multiplex, OFDM, sub-carriers spanning a first frequency bandwidth. The method includes: communicating data between a first base station and a first terminal device using a first group of the OFDM sub-carriers distributed across the first frequency bandwidth, communicating data between a second base station, geographically separated from the first base station, and a second terminal device using a second group of the OFDM sub-carriers distributed across a second frequency bandwidth, and communicating control-plane data between the first base station and the first terminal device using a combination of the first and second groups of the OFDM sub-carriers. Guard regions may be provided in the frequency domain between frequencies of transmissions associated with the first base station and frequencies of transmissions associated with the second base station.