Abstract: A method for a mobile station to acquire a IP network address from a gateway in GPRS system. First the mobile station generates a link identifier. Next the mobile requests a network address by sending a link identifier over a wireless to a gateway along with a request for the gateway to check to see if the link identifier is unique. Upon receiving the network address request the gateway checks to see if the link identifier is unique. The gateway responses by either confirming that the network link identifier is unique or by sending a different unique link identifier to the mobile station. The gateway also has the ability to respond by sending a network prefix to the mobile station. Upon receiving the network prefix the mobile station combines the network prefix with the interface identifier to generate a IP network address.

Abstract: A method in reception of a multiplex signal, comprising one or more data units, and at least one framing data block in each multiplex signal. The method comprises: searching for said framing data block from a received multiplex signal; demultiplexing said one or more data units according to the information in said framing data block; generating one or more demultiplexed signals from said demultiplexed data units, and forwarding said demultiplexed signals for decoding (50). At multiplexing possible invalidity of demultiplexed video data units is detected (51), and as a response to a detected invalidity in a demultiplexed video data unit, an error indication to the demultiplexed video data signal is added (52).

Abstract: The invention relates to a method for using an application (18) in a mobile station (1). The application has a first mode of operation and a second mode of operation, whereby the first mode of operation is passive, and in the second mode of operation the application controls the master control unit (MCU) of the mobile station. The invention also relates to a system for making payments, comprising at least one mobile station (1), which has an application (18), means for using the application (18), and the first means of data transfer (IR, 20, RF) for local data transfer. The system also comprises at least one cash register (21) or the like, which has the second means for data transfer (IR2), and the application (18) comprises means for transferring data between the first means for data transfer (IR) and the second means for data transfer (IR2).

Abstract: The invention relates to a method and arrangement for creating a virtual keyboard for a terminal (800) used in a cellular network. The virtual keyboard is generated using an IR transceiver arrangement (12) in which a reflection from an obstacle (15) placed in the field of IR transmitters is registered by discrete IR receivers. The received reflection data are processed in a neural network arrangement (33). The purpose of the data processing is to find out the virtual key position/function that the received reflection data corresponds to.

Abstract: The invention concerns generally the technology of reducing frequency offset in a radio receiver. Especially the invention concerns receivers where a channel estimator is used for correcting the base band signal. The objects of the invention are achieved by monitoring the phase of the channel estimation output and generating a complex phasor on the basis of successive phase values. The received baseband signal is then multiplied by the generated complex phasor for compensating the frequency offset. The frequency compensation can be made before or after said channel estimation thus producing a feedback compensation or feed forward compensation. The feedback compensation can be implemented by compensating the baseband signal either prior to the despreading or after the despreading.

Abstract: A method for encoding video information is presented, where a piece of current video information is segmented into macroblocks and a certain number of available macroblock segmentations for segmenting a macroblock into blocks is defined. Furthermore, for each available macroblock segmentation at least one available prediction method is defined, each of which prediction methods produces prediction motion coefficients for blocks within said macroblock, resulting in a certain finite number of available macroblock-segmentation—prediction-method pairs. For a macroblock one of the available macroblock-segmentation—prediction-method pairs is selected, and thereafter the macroblock is segmented into blocks and prediction motion coefficients for the blocks within said macroblock are produced using the selected macroblock-segmentation—prediction-method pair. A corresponding decoding method, an encoder and a decoder are also presented.

Abstract: A transmitter into which a modulated signal (TX) is fed, the transmitter comprising an adjustable amplifier (1) for adjusting transmission power level, the modulated signal (TX) being fed into to the input of the amplifier (1), an amplification branch (11) arranged after the adjustable amplifier (1) on the signal path, the amplification branch comprising a power amplifier (3) for further amplifying the transmission power level, and at least one filter (27, 28) arranged after the power amplifier (3) on the signal path for filtering the frequency band to be transmitted. The transmitter further comprises an antenna (9) after the amplification branch (11) on the signal path for transmitting signals. The transmitted is characterized by a bypass branch (10) which operatively couples the output of the adjustable amplifier (1) and the antenna (9) and is used for bypassing the amplification branch (11) and connecting signals to be transmitted at low transmission power levels directly to the antenna (9).

Abstract: An E-OTD method for locating a mobile station using measurement information related to arrival of signals transmitted from base stations of different operators for obtaining the base station locations. When one operator does not have enough base stations for providing measurement information for location calculation, the SMLC of that operator acquires measurement information of base stations from at least one other operator using SMLC-SLMC communication protocol.

Abstract: Active and inactive segmentation states are defined for transparent mode for a radio access network (RAN) interfacing with a core network (CN) and a user equipment (UE). If transparent mode is valid on the Iu-interface between the RAN and the CN, then an inactive segmentation state indicates to peer (UE/RAN) segmentation and reassembly (SAR) entities such as at the radio link control (RLC) layer that segmentation is blocked in the UTRAN, over the Uu-interface, and in the UE so that TTIs with periodicities greater than the minimum transmission interval may be utilized, except over said Iu-interface.

Abstract: A system, a device, a terminal and a method for filtering electronic information to be transferred to the terminal through a telecommunication connection. The invention includes attaching a specific filtering parameter by the device transferring the electronic information to the electronic information for the purpose of filtering before the electronic information is transferred to the terminal through the telecommunication connection, and informing the terminal of the filtering parameter before the electronic information is transferred to the terminal through the telecommunication connection. In the terminal, the steps include checking the informed filtering parameter and allowing or preventing the receiving of the electronic information on the basis of the filtering parameter.

Abstract: A telephone connection is complemented with additional information by, after initiating the telephone connection between a transmitting telecommunication device and a receiving telecommunication device, composing, at the transmitting telecommunication device, a signalling message of predetermined form to be transmitted in association with the telecommunication connection. The signalling message contains the additional information. Within the signalling message there is indicated the intended receiving part within the receiving telecommunication device of at least part of the signalling message. The signalling message is transmitted from the transmitting telecommunciation device to the receiving telecomunication device.

Abstract: The invention relates to communication of information in fixed-length messages in mobile communication systems, particularly in association with positioning methods. In a method according to the invention information is transferred in a fixed-length message such that the payload portion of the message includes content information to define the contents of the payload portion of the message, and in accordance with the content information the payload portion of the message includes information elements defined by the content information.

Abstract: The invention concerns arrangements whereby a number of modifiable settings can be used, where at least some of these settings are stored as individual values in a memory and are or become available to a user as preset values. To that end it is proposed to store the individual values in an arrangement for mobile communications and make them available to the respective arrangement when both arrangements are connected. A modification of the arrangement for mobile communication is not required if the individual values are stored as telephone numbers.

Abstract: The invention relates generally to a method and an arrangement for transferring information in a packet radio service. Especially the invention applies to transferring delay sensitive data, such as speech and video data, in a mobile cellular telecommunications system. It is an object of this invention to provide a solution, in which the physical connection of a packet radio service is kept reserved also during the passive periods of a session but the same physical resource can still be shared between multiple users. In the present solution after the end of an active period of data transmission a predetermined time period is waited until the connection is released. The length of the time period is informed to the mobile station by the network on a dedicated or on a broadcast channel. The length of the time period is preferably made dependent on the required quality of service value of the connection and on the momentary communication activity in the network or cell.

Abstract: A switching and connecting arrangement for coupling external and internal antennas, wherein the arrangement comprises at least a diversity switch arranged on a circuit board for selecting a first antenna or a second antenna. The arrangement also comprises a first integrated antenna switch arranged on said circuit board for selecting a first antenna and connecting it electrically to said diversity switch, wherein the first antenna switch is forced mechanically to select the first external antenna instead of the first internal antenna when it is coupled to said switch, and to select the first internal antenna when disconnected; a second integrated antenna switch arranged on said circuit board for selecting a second antenna and connecting it electrically to said diversity switch, wherein the second antenna switch is forced mechanically to select the second external antenna instead of the second internal antenna when it is coupled to said switch, and to select the second internal antenna when disconnected.

Abstract: In recent years adaptive modulation has emerged as a popular technique to improve data throughput and system capacity in a wireless system. The basic idea is to adapt the modulation scheme to the fading channel quality, using different schemes for different channel conditions. Therefore one primary issue is to determine the switching thresholds between the modulation schemes. Typically these thresholds are fixed according to a certain criterion. This paper introduces a novel adaptive learning approach that is capable of dynamically adjusting the thresholds so as to maximize the throughput. A key feature of the proposed self-learning scheme is that no dedicated training signal is required, instead it utilizes the long-term average throughput to continuously update the thresholds as the data is transmitted.

Abstract: A method and system for coding audio signals in a multi-channel sound system, wherein a plurality of MDCT units are used to reduce the audio signals for providing a plurality of MDCT coefficients. The MDCT coefficients are quantized according to the masking threshold calculated from a psychoacoustic model and a plurality of INT (integer-to-integer) DCT modules are used to remove the cross-channel redundancy in the quantized MDCT coefficients. The output from the INT-DCT modules is Huffman coded and written to a bitstream for transmission or storage.

Abstract: A method and system for searching for data in at least two databases. To allow simultaneous access to two or more databases, a search term is entered. On the basis of the entered search term, the predecessor or a plurality of predecessors and the successor or a plurality of successors to the search term and, if available, the search term itself from each of the databases are stored in a search table, and the search term, if stored in the search table, or that term from the predecessor or plurality of predecessors and successor or plurality of successors stored in the search table which comes closest after the entered search term is displayed.

Abstract: A method and a telecommunication system for data packet numbering in packet-switched data transmission in connection with a handover, in which the responsibility for a connection is transferred from the connection between a mobile station and a first wireless telecommunication network to the connection between said mobile station and a second wireless telecommunication network. In the first wireless telecommunication network a data packet number space available for data packet numbering is bigger than a data packet number space of the second wireless telecommunication network. Data packet numbering is restricted in the first wireless telecommunication network such that the numbers of the data packets of the first wireless telecommunication network do not exceed the maximum value of the data packet number space of the second wireless telecommunication network.

Abstract: A method and apparatus for modification of a speech signal indicative of a stream of speech data having a plurality of syllables. The method comprises the steps of mapping the stream of speech data from the speech signal into a stream of tone data according to a linguistic rule regarding the syllables for providing a tone signal indicative of the stream of tone data; forming a string of musical notes responsive to the tone signal for providing a carrier signal indicative of the string of musical notes; modulating the carrier signal with the speech signal for providing a modified signal; and providing an audible signal representative of the speech signal, musically modified according to the linguistic rule. The linguistic rule includes an assignment of a tone to a syllable of the speech data based on a vowel of the syllable, a consonant of the syllable, the intonation of the syllable for a monosyllabic language.