Abstract: A radio transmitter, comprising: a feedback loop (314) which feedback loop comprises a variable attenuator and a signal analyser, means (300, 302, 304, 306, 308, 310, 312) for transmitting a signal on a predetermined radio channel, means (308) for changing attenuation level and for attenuating the feedback signal, means (316) for defining power levels on the radio channel and on the adjacent channels, means (312) for analysing the power levels to generate first and second results of analysis and for comparing the first and second results of analysis, means (318) for delaying a transmitted signal to derive a reference signal, means (312) for comparing the feedback signal and the reference signal to generate an error vector and means (320) for generating a test alarm.

Abstract: Apparatus, and an associated method, for a frame-formatted radio communication system. Coordination is provided between MAC and RLP layers of a sending station through use of apparatus embodied at the MAC layer of the sending station. Also, apparatus is provided at a receiving station to reduce the generation of RLP layer NAK during segmented RLP frame retransmissions.

Abstract: A system for effectuating a push-to-talk service in a gaming environment includes a network entity within a gaming architecture, where the network entity is capable of operating an electronic game. The system also includes a client capable of interacting with the network entity in the gaming architecture to play an electronic game. The client is also capable of establishing a push-to-talk session in a multimedia service architecture. The push-to-talk session has at least one associated parameter, which the client can transfer one or more of the parameters to the network entity. Accordingly, the network entity is capable of advertising the parameters to at least one other client to thereby enable the other clients to join the push-to-talk session based upon the parameters.

Abstract: Methods, mobile terminal devices and computer program products are provided that are capable of reducing power consumption by detecting error events signifying unsuccessful short-range wireless communication activation operations and adjusting the frequency of the activation of the reader based on the detection of the error events. In this regard, the invention prevents the device from powering-up the processor for the read operation when the mobile terminal is in the vicinity of a wireless communication system whose signals are being received by the mobile terminal but are not intended for the use of the mobile terminal. By limiting the powering-up of the processor, power of the mobile terminal is preserved.

Abstract: A method of selecting the serving network element in a telecommunications network. Mobility agents or routers transmit attribute information on one or more network elements in advertising messages to at least one mobile node. This information is used in the mobile node for selecting the serving network element.

Abstract: A method for indicating status on a programmed communication device wherein each of one or more backlights is associated with a respective key of a plurality of keys. Status information to be communicated to a user of the communication device is then generated, and one or more backlights are illuminated according to a pattern corresponding to the status information. Thus, a visual graphical display is not necessary, cost is reduced, volume is conserved, and reliability is increased.

Abstract: The invention is related to radio resource usage in cellular telecommunication systems, more accurately to admission control methods used in establishing of new connections. In a method according to the invention, a bearer request is checked with two different tests before it is admitted or rejected. A test of a first kind is used for overall control, i.e. all bearers are treated in a roughly similar way. A test of a second kind is used for controlling bearers, which present a high load to the network. A bearer request must then pass a combination of a test of the first kind and a test of the second kind in order to be admitted. A two-part test according to the invention is able to efficiently handle both even and skewed traffic.

Abstract: A method and apparatus for aggregating packets in a wireless communication system. The data to be transmitted is selected and packetized and formed into frames for transmission. Rather than send each frame individually, frames are grouped and transmitted with grouping indicia informing the recipients how to acknowledge successful receipt of the transmitted data. ACKs are sent at a predetermined time, or all together, divided by subcarrier in the case of an OFDMA network.

Abstract: A method of securing communication between a first party and a second party includes defining a criteria for selecting one of a plurality of different security methods. One of the plurality of different security methods is selected in accordance with the defined criteria.

Abstract: The invention relates to a method and a receiver for obtaining a soft decision in detection of a TFM signal. In the method, the phase of a signal sample is reversed rotated twice in the way that the real part of the sample indicates the phase of the sample and that the rotation is opposite to the phase belonging to the old state of a trellis diagram. Transition metrics are completed with the aid of the real part of the signal sample. Then path metrics are computed, the path with larger metrics is selected as a survivor and the survivor with the largest metric is selected as the best survivor. The sign of the demodulated bit is determined and the weight of the demodulated bit is calculated.

Abstract: Apparatus, and associated method, converts real-time multimedia information generated pursuant to an RTP protocol into a form amenable for transmission upon a radio channel, such as a radio channel defined in a cellular communication system. When converted, the informational content of the multimedia information is transmitted in a manner that achieves spectral efficiency and low, constant delay. Once transmitted over the radio channel, the multimedia information is converted back into form corresponding to the RTP protocol before being sent to the receiving station.

Abstract: The invention relates to a method for supporting location determination of a mobile station, in which method location data are stored in and deleted from a memory, each location data item describing the location of the mobile station measured at a given measuring moment. Furthermore, in the method, a distance parameter and/or a target level corresponding to the distance parameter is determined at least for some of the stored location data; and deletion of the location data is at least partly based on the distance parameter and target level.

Abstract: A method and corresponding apparatus for accurately determining the offset of the carrier frequency of a received signal from a nominal frequency (the offset due to for example Doppler shifting), such as is done in a ranging receiver when acquiring or tracking a signal transmitted by a beacon (such as a satellite) of a positioning system. The method amplifies a conventional correlation by performing a special noncoherent integration of the real and imaginary components of the output of a conventional (coherent) correlation calculation, resulting in a complex phasor having a phase that bears information about the offset of the carrier frequency from the nominal carrier frequency.

Abstract: The present invention relates to a method and circuit arrangement for performing signal alignment, wherein signals to be aligned are controlled based on a frequency response of a phase error determined in the comparison. Thereby, the input and output signals can be aligned even in the presence of considerable distortion, as they are now compared using a quantity immune to the effects of both amplitude-based and phase-based distortions.

Abstract: The present invention relates to a method and system for re-routing a call which has been routed from a calling party (1) through a communication network to a destination (4). A need to relay the call to another destination (5) is identified and a subscriber identification of the calling party (1) is signaled from the other destination back to the communication network using a call drop-back function. Preferably, the subscriber information is then used to derive a routing information of the other destination (5) which may be a right destination in case the initial destination (4) was a wrong destination. Thus, a call drop-back feature is used to route calls even in cases where a subscriber is connected to a wrong destination. Thereby, an effective re-routing can be provided in cases where a subscriber identification is not provided in the call, such that a single service access short code can be used by all subscribers irrespective of their mobile terminal and their location.

Abstract: An antenna module for use in a small communications device. The antenna module comprises a dielectric block disposed on a circuit board having a ground plane, an elongated planar strip element folded to fit on different surfaces of the dielectric block, and one or more parasitic element disposed adjacent to the antenna element. In particular, the antenna element is designed to produce resonance frequencies at GSM850 and E-GSM900 bands (the lower bands) and one resonance for the GSM1800/GSM1900/WCDMA2100 bands (the upper bands). The dielectric block can be made of soft or hard plastic.

Abstract: A method and a device for estimating the DC offset portion of a signal, especially of a signal containing parts with sinusoidal shape, for example a signal which results from demodulation of a frequency modulated receive signal. A method is presented for correcting the direct current offset portion (DC offset) of a first signal which includes phase shifting the first signal for obtaining a second signal and comparing the first signal and the second signal with an estimated DC offset. The estimated DC offset is adjusted if the result of the comparison is that the first signal and the second signal are on different sides of the estimated DC offset and the estimated DC offset remains constant as long as the result of the comparison is that the first signal and the second signal are on the same side of the estimated DC offset.

Abstract: A method and a system for charging for message communication, e.g. short messages, in intelligent network applications and especially for charging for message communication by a prepaid subscriber. For charging an intelligent network subscriber for message communication, the message communication bills of the intelligent network subscribers are retrieved from the data collected for message communication charging and the bills are used to update the charging data of the intelligent network. This action is preferably performed periodically.

Abstract: A multimedia network (1) with connected customer stations (2), merchant servers (3), and a payment server (5). Secure electronic transactions are performed using a secure electronic transactions protocol (SET), including exchange of digital certificates, managed by a Trusted Third Party Server (9). The customer stations comprise transactions management means (10), fit for performing said SET protocol and for managing said certificates for the customer station. A remote customer agent (13) represents the customer station in the negotiation and payment process. The customer station (2) comprises an agent interface (12), fit for transmission of codes, parameters and certificates between the customer agent (13) and the transactions management means (10). A remote merchant agent (14) represents the merchant station (3) in the negotiation and payment process with the customer agent (13) or the customer station (3), to have paid for the selected products in a secure way, under control of SET protocol.

Abstract: A means by which a network-based presence source can ascertain the unique device ID for each device on the network based on the device's IP address is provided. In particular, a network-based Device ID database, along with a method of accessing and utilizing the database, which can be used in conjunction with any presence service to store binding, or correlating, information between the device IDs and device IP addresses for a plurality of devices communicating on the network are provided.