Abstract: The present invention involves establishing a top-level key and optionally also a verification tag. The top-level key is used as the MDP key for encrypting a broadcast medium. Only the part of the key message that contains the encrypted top-level key is authenticated, e.g. using a signature or a Message Access Code (MAC). Any known group-key distribution protocol can be used that is based on the creation of a hierarchy of keys. Examples of such methods are the LKH and SD methods. The group-key distribution protocol output key H, traditionally used as the MDP key, or a derivative thereof is used to encrypt the top-level MDP-key. The invention, further, includes optimization of a group-key message by eliminating unnecessary message components relative a specified group or sub-group of users. The optimization can be made in dependence of contextual data such as user profile, network status, or operator policies.

Abstract: The invention describes an electric circuit (100), a method and a computer program for hot-swapping an electronic board in a telecommunication system, where the increase in current in the electric circuit is controlled by a microcontroller (130) switching a power transistor in a switching circuit (150) so as to gradually increase the capacitor voltage for the electronic board. The current level is measured either in the microcontroller (130) itself or in an external current sense circuit (140) and compared to a maximum current level.

Abstract: The present invention relates to an arrangement comprising an Ethernet carrier network, managed by a management system (100) and comprising a number of levels of management domains, each comprising a number of edge nodes (10, 20, 30, 40) and a number of intermediate nodes (1, 2, 3, 4, 5, 6, 7, 8). Each edge node (10, 20, 30, 40) comprises fault detection of connectivity check messages and fault locating means with holding means (11, 21, 31, 41) adapted to hold path information for the paths to all other edge nodes. A fault detection means of an edge node having detected a fault is adapted to activate edge node fault locating means to locate the fault using the patch information in the edge node holding means to find a first target intermediate node substantially in the middle of the path containing the fault, and to, directly, send a first loop back message to said intermediate node.

Abstract: The present invention relates to a packet data support node (10A) in a core network and connectable to at least one radio access network over a radio network control node. The packet data support node (10A) comprises duplicating means (12A) for duplicating original downlink data packets intended for a mobile station for which a hand-over is performed from the packet data support node acting as source node to a packet data support node acting as target node, control means (HA) for activating sending of the duplicated data packets to the packet data support node acting as a target node for forwarding to the mobile station such that the original downlink data packets are sent to the mobile station over a source radio access node from the source packet data node (10A). The duplicated data packets are sent to the mobile station over a target radio access node from the packet data source node acting as target node.

Abstract: A method and apparatus that utilizes the synchronization channel (SCH) by the user equipment (UE) to obtain time synchronization information and to perform cell search. In order to perform the SCH detection, only a correlation between the known SCH signal and the received sequence is needed, hence the FFT is not involved in the synchronization step. Typically the SCH and pilot symbols are transmitted with a constant power which is the same for all base stations. Hence, based on the serving cell (SC) SCH and pilot symbols, the power relation between these signals is estimated and the ratio applied when performing time synchronization to other cells (i.e. correlation the received sequence with the SCH from that particular NC) to estimate the pilot signal strength for the NB cell.

Abstract: A method of services request in a packet switched telecommunications network comprising a Gateway GPRS Support Node (GGSN) arranged for communication with a Serving GPRS Support Node (SGSN). During activation of a subscriber session, receiving by the GGSN, from the SGSN in an Update PDP Context Request message, data comprising both 1) an Internet Protocol (IP) address and user plane tunnelling endpoint identifier (TEID) for a Radio Network Controller (RNC) and 2) an IP address and user plane TEID of the SGSN; the GGSN nominally utilizes the IP address and TEID of the RNC for the subscriber session. If an error indication is received by the GGSN indicating that the RNC has restarted, it discards the IP address and TEID corresponding to the RNC and utilizes the IP address and TEID corresponding to the SGSN, whereby the GGSN and SGSN can maintain the subscriber session in the event of an RNC restart.

Abstract: A method of estimating the quality of speech information associated with a voice call over a communication system comprising a core network and an access network where speech information is carried between the access network and the core network and within the core network in frames. The method comprises determining a rate of frame loss for frames transported between the access network and the core network and/or within the core network, and mapping the rate of frame loss to a quality estimation value using data collected by simulating frame loss on representative speech samples and determining quality estimation values for the damaged speech samples.

Abstract: A received total wideband power (61A) in a wireless communications system is measured a number of times during a time interval. Preferably, also code powers ((C/I)i) are measured, directly or indirectly. A probability distribution of a first power quantity (63A, 63B), typically total received power is estimated from the set of measurements, preferably using Kalman filtering techniques, and preferably also a probability distribution of a second power quantity (62A, 62B) related to noise and interference signals. A conditional probability distribution of a noise rise measure to be determined is based at least on the probability distribution of the total power (63A, 63B). From that conditional probability distribution, a value of the noise rise measure is calculated.

Abstract: A system and method for using Mobility Management (MM) and Session Management (SM) procedures in an SAE/LTE system. The present invention modifies several MM and SM procedures that have been defined for other 3GPP access systems (such as GERAN, UTRAN) so that they meet the requirements of LTE/SAE. While the present invention re-uses some existing procedures, it further defines new protocols for MM and SM procedures when accessing 3GPP systems by Evolved UTRAN (EUTRAN). With respect to the new protocols, the encoding rules are re-used from the existing MM and SM procedures and a very similar general message format is created. With respect to the signaling messages, the present invention re-uses the existing information element definitions for each parameter included in a message.

Abstract: The invention relates to distribution of electrical power, supervision and security. The invention comprises a power feeding station PFS for delivering electrical power. The PFS comprises a low voltage side LVS, a high voltage side HVS and a transformer TF which is configured to deliver high voltage single phase alternating current on the high voltage side, The power can be distributed, via a cable, to one or more power receiving stations PRS. The cable is configured to distribute current-symmetrical single phase current delivered by the power feeding station. The cable can preferable be a coaxial cable with the shield as current return path. The invention also comprises a current sensor unit CSU which is situated on the high voltage side. The means for measuring characteristics of the current CD can comprise a coil without galvanic contact with the high voltage side. A circuit break unit CBU suitable for breaking the current is situated on the low voltage side.

Abstract: A UE is described herein that has a defined QoS database which is used to organize and store various QoS parameter sets which are used to help establish media flows. In one embodiment, the QoS database includes a plurality of tables, where each table is associated with a particular application, and where each table has a plurality of rows, and where each row includes a media type, a requested QoS parameter set, and an optional minimum QoS parameter set. An operator can use a communication network to populate/provision the QoS database. An operator can also use the communication network to fine-tune (update) the QoS database which enables them to enhance the bearer QoS for existing applications and to enable the appropriate bearer QoS for future applications.

Abstract: The invention relates to a method and an arrangement for obtaining efficient radio resource allocation in a mobile communication network comprising a communication network entity (15) and at least one user equipment (18) transmitting data to said mobile communication network entity (15) over a radio interface. A first data transmission from said at least one user equipment (18) is received, whereby said first transmission is decoded and a message (ACK/NACK) based on a result of the decoding is sent on a downlink channel (13) comprising information of said first received data transmission. A second data transmission from said at least one user equipment (18) is received, whereby the power on said downlink channel (13) is adjusted depending on the result of said decoding and the content in said received second data transmission.

Abstract: A portable telecommunications system (PTS) allows mobility and rapid deployment with minimal on-site configuration. PTS systems exchange multicast packets including location and identification information. A protocol manager sets up these communications channels, manages exchanges between PTS systems, and passes the data to or from internal system nodes. The PTS system detects when another PTS system is operating in close physical proximity and automatically perform actions, such as adjustment of transmission power level, to maintain service to the user base.

Abstract: A method for booting a processing device, the processing device comprising a first and a second processing unit, the method comprising: detecting by the first processing unit, whether at least one boot configuration parameter is accessible from a non-volatile storage medium of the processing device, the at least one configuration parameter being indicative of a boot interface; if said at least one configuration parameter is available, forwarding at least a part of the detected at least one configuration parameter by the first processing unit to the second processing unit; otherwise detecting by at least one of the first and second processing units whether a boot interface is available to the processing device; booting at least the second processing unit from the indicated or detected boot interface.

Abstract: A method and device for calculating the Specific Absorption Rate (SAR) caused in a body by the electric field of a wireless communications device. The method involves using a model of a body, wherein the device is placed in proximity to the model and the electric field is measured at discrete points, including measuring the magnitude of the electric field at points of a first and a second surface of the model. By means of the measured magnitudes, the phase at said points is determined, such that the complex electric field at said points is determined. The complex electric field at said points is then used to determine the complex electric field in the model of the body. The complex electric field is used in order to calculate the SAR value caused by the device.

Abstract: Method for transmitting a wideband code division multiplex output signal at a given chip-rate corresponding to a plurality of combined physical radio links for respective user entities, comprising the steps of performing parallel symbol and code generation, parallel modulation, parallel spreading, each enhanced multiplex rate cycle providing a first number of parallel spread chip values, thus forming a first number of spread chip value streams. The enhanced multiplex rate being a second number greater than the chip rate of the output signal, combining the physical radio links over a number of segments corresponding to the second number at the enhanced multiplex rate in multiplex fashion, extending the combination of the physical radio links during a time corresponding to a third number of chips, causing a combined plurality of physical radio links, buffering the results so as to establish a complex signal at chip rate to the air transmission antenna.

Abstract: A method is provided for a base station set (NODE B) adapted for RLC and MAC-hs signaling in acknowledged mode (AM), the base station set at least forwarding protocol data units (MAC-d PDU) from a Radio Network controller (RNC) to a user entity (UE), the method comprising the steps of monitoring (1) the MAC layer of the transmission entity of the base station set (1), if a MAC discard has occurred in the MAC layer (3), that is, protocol data units (PDU's) have been deleted in the input buffer of the base station set (NODE B), transmitting (7) a discard notification message from the MAC transmission entity in the base station set to the RLC layer of the radio network controller (RNC), indicative of the discarding of protocol data units. There is moreover provided a method for a radio network controller (RNC) adapted for RLC and MAC-hs signaling in acknowledged mode (AM) and a method for a user entity (UE) adapted for RLC and MAC-hs signaling.

Abstract: The present invention relates to a node and a method in a cellular radio network telecommunication system for assigning resources to users, comprising a network node having resources to be allocated to users being present in a radio cell served by the network node. The invention comprises:—assigning a priority to each user in the radio cell, where a user consuming a larger portion of the resources is assigned a lower priority than a user consuming a lower portion of the resources,—receiving a rate request, requesting a larger transmission rate, from a first user having a first priority.

Abstract: A solution in a telecommunications infrastructure network for creating a secondary PDP context for a time critical application, ensuring that no packets are lost by masquerading a primary PDP context as the secondary PDP context. This may be achieved by for instance sending a fake TEID or including a filter in a PDP creation request for the secondary PDP context and updating the GGSN with a correct TEID or a new Traffic Flow Template (TFT) when the secondary PDP context is established.

Abstract: A communications network and method for providing a voice message to a user of a mobile station (MS) in a network having a plurality of independent mobile systems, each independent mobile system including a Mobile Switching Center (MSC), Short Message Service Center (SMS-C) and Voice Message System (VMS), wherein each VMS is identified by a unique identifier code. A received voice message is stored in a VMS, and an SMS notification message is sent to the MS. Because each VMS is identified by a unique identifier code, the MS can retrieve a voice message by dialing the code contained in an SMS notification message, regardless of which independent mobile system is serving the MS at the time the voice message retrieval is requested.