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| Number | Title | Issue Date |
| RE42345 | Packet radio network with charging information collected by nodes and forwarded to billing center In a digital mobile communication system, a packet radio system has been implemented by employing the radio interface of the mobile communication network. The packet radio system comprises packet radio support nodes (SGSN) connected to the mobile communication netwo... | 05/10/2011 |
| 6985736 | Increasing the capacity of a cellular radio network The invention relates to a cellular radio network and a method for increasing traffic carrying capacity in a cellular network. The operating frequency spectrum of the cellular network has been divided in such a way that typically both regular frequencies and super-r... | 01/10/2006 |
| 6970441 | Data transmission method The invention relates to a data transfer method in a digital cellular radio network, the method comprising channel coding the information to be transferred for transmission. In order to implement a data rate of 14.4 kbit/s in GSM type of cellular radio systems by em... | 11/29/2005 |
| 6904109 | Interference cancellation method, and receiver An interference cancellation method and a receiver operating according to the method, in which multiple access interference cancellation of a received signal is performed and a confidence coefficient for estimates obtained from the received signal is calculated. In ... | 06/07/2005 |
| 6799021 | Method and arrangement for forming an address A method and arrangement for forming an address for use in signal predistortion. The arrangement is used to form a corrector table address employed in the signal predistortion to compensate for signal distortions. The signal distortions are compensated for using cor... | 09/28/2004 |
| 6747966 | Radio system and methods for duplex operation A method for duplex telecommunication connection in radio connections is based on a frame-structured interactive communication and a radio system where the frame-structured interactive communication is performed in the radio connections. A means is provided for impr... | 06/08/2004 |
| 6738369 | Method and arrangement for packet-switched data transmission The invention relates to a method for transmitting data in a telecommunication system that comprises at least one packet-switched transmission network, in which data is transmitted in data packets of a standard length, the number of such standard lengths being deter... | 05/18/2004 |
| 6738374 | Speech transmission in a packet network Speech is transmitted between a base station (BTS) and a TRAU by converting a speech signal into a parameter group which is inserted in a traffic frame which is transmitted as a packet comprising a header and a payload. In accordance with the invention, the payload ... | 05/18/2004 |
| 6714601 | Method in digital quadrature modulator and demodulator, and digital quadrature modulator and demodulator Method measures imperfections in the digital quadrature demodulator from the amplitude of the output signal of the demodulator quadrature mixer, i.e. from the amplitude of a vector formed by the I and Q channels, are taken, at a rate based on a symbol clock of the d... | 03/30/2004 |
| 6690743 | Compensation of delay in linearization loop of power amplifier A method of compensating delay in an linearization loop of a power amplifier and a linearization arrangement of a power amplifier, which arrangement includes an I/Q modulator, one or more power amplifiers to be linearized and generating delay, and a feedb... | 02/10/2004 |
| 6674741 | High speed data transmission in mobile communication networks The invention relates to high speed data transmission in digital mobile communication systems. In multichannel data transmission, a single data connection is allocated a plurality of parallel traffic channels (Ch1, Ch2, Ch3) via which the data units (1, 2... | 01/06/2004 |
| 6665312 | Synchronous data transmission method and arrangement The invention relates to a synchronous data transmission when the maximum data rate of the traffic channel equals one of the user data rates at the terminal interface. Such a situation may occur for example when a satellite system is connected as a base s... | 12/16/2003 |
| 6661782 | Routing area updating in packet radio network The invention relates to a cellular packet radio. network and to a method for updating a routing area in a packet radio network. Packet radio support nodes (SGSN) are connected to a digital cellular radio network (BSS), which provides a radio interface fo... | 12/09/2003 |
| 6646998 | Mobile communication system and method for establishing a data call The present invention generally relates to data transmission services in mobile communication systems. A mobile subscriber may typically be entitled to different kinds of tele and bearer services. Presently, each user data rate is an independent bearer se... | 11/11/2003 |
| 6643526 | Method and apparatus for directional radio communication A method of directional radio communication between a first station (6) and a second station, comprising the steps of defining at the first station (6) a plurality of beam directions (b1 -b8) for transmitting signals to said second s... | 11/04/2003 |
| 6639908 | Method of facilitating transmission level measurement, and base station The invention relates to a method of facilitating measurement of a transmission level, and a base station. The base station moves its broadcast (BCCH) from one time slot (10 to 17) to another so that the broadcast (BCCH) is sent in different time slots (1... | 10/28/2003 |
| 6633536 | Signalling in a digital mobile communications system A method and a transmitter (100) and a receiver (102) for transmitting messages (114) in a digital telecommunications system. The information (104) to be sent is encoded in an information encoder (106) of the transmitter (100) into frames that are transmi... | 10/14/2003 |
| 6631173 | Method and arrangement for calculating correlation A method and arrangement for calculating correlation between a first and second code sequence, which comprise a number of samples and have a finite length is disclosed. The arrangement comprises an assembly for estimating the delay between the code sequen... | 10/07/2003 |
| 6614860 | Compensation of doppler shift in a mobile communication system In a mobile communication system, signals which are transmitted from mobile stations moving relative to a base station are subject to a Doppler effect. A technique is described for compensating for that Doppler effect by using estimated bit decisions for ... | 09/02/2003 |
| 6611547 | Method of avoiding packet loss at a handover in a packet-based telecommunications network and handover method The invention relates to a connection-oriented packet-based communication network, in which the terminal and the network access point of the terminal may move in the network. When the access point of the terminal changes during an active connection, the r... | 08/26/2003 |
| 6603734 | Method for eliminating interference in an OFDM radio receiver The invention relates to a method for eliminating interference in an OFDM (Orthogonal Frequency Division Multiplexing) radio receiver In the method, coded signals that are transmitted on subcarriers are received, reliability information generated for the ... | 08/05/2003 |
| 6603738 | Prioritization of data to be transmitted in a router General Packet Radio Service is a new service designed for digital mobile systems. Because of bottlenecks, such as an air interface (Um), queues may be formed in routers. Long transmissions of data may slow the operation of interactive applications so tha... | 08/05/2003 |
| 6597682 | Channel allocation method for a packet network A method for allocating a data transmission channel/sub-channel in a telecommunication network. A network includes a telecommunication controller (BTS) and several terminal equipments (MS). The transmission channel is divided into one or more time slots, ... | 07/22/2003 |
| 6594250 | Method of monitoring base stations with discontinuous control channel transmissions A method for monitoring with discontinuous BCCH carriers in GSM, in which a mobile station can monitor a neighboring base station in each frame, or one in each frame. i.e. once in 4.615 ms, even where the base stations do not transmit continuously on a be... | 07/15/2003 |
| 6574336 | Echo suppressor and non-linear processor of echo canceller The invention relates to an acoustic echo suppressor and a non-linear processor for an echo canceller in a 4-wire data transmission network. An echo canceller is typically controlled by comparing the power levels of the near-end and far-end signals. The t... | 06/03/2003 |
| 6571284 | Method for repeater management In order to integrate repeater management with network management in a wireless telecommunication network, a database is added to the network management center (NMC), said database including the data on the network repeaters (R1, R2, R3), which include fo... | 05/27/2003 |
| 6570860 | Data transmission method in a TDMA mobile communication system A method and apparatus for data transmission in a time division multiple access (TDMA) mobile communication system, in which one or more time-slots may be allocated to a mobile stations for data transmission. The mobile station indicates, upon setting up ... | 05/27/2003 |
| 6570851 | Receiver driven differentiated service marking for unicast and multicast applications The present invention is a system (100, 200, 300) and a method of data transmission in a communication system comprising a source node (12) which originates packet data transmissions, a packet data network (18), at least one router or switch (16, 20) and ... | 05/27/2003 |
| 6570933 | Method in digital quadrature modulator and demodulator, and digital quadrature modulator and demodulator Method measures imperfections in digital quadrature modulator and demodulator operation, and to a digital quadrature modulator/quadrature demodulator. The modulator includes means for modulating quadrature-phase I and Q input signals to generate an output... | 05/27/2003 |
| 6567389 | Method and arrangement for high-speed data transmission in a mobile telecommunications system For improving data transmission over the radio path between a mobile station and a base station in a mobile telecommunications system, a divider splits a data signal whose speed is higher than the maximum data transfer rate in one frame, into at least two... | 05/20/2003 |
| 6563789 | Data transmission method and equipment The invention relates to a data transmission method and equipment in a telecommunication system, particularly in a situation where the maximum data rate of a traffic channel is equal to one user data rate at a terminal interface. A mobile station inserts ... | 05/13/2003 |
| 6560460 | Determining grade of service and mobile telephone system A method of determining a grade of service provided for a mobile station by a mobile telephone system including a network part, a mobile station and a bi-directional radio link between the network part and the mobile station. The method comprises the netw... | 05/06/2003 |
| 6556573 | Synchronization of ATM-based network system using variable bit rate ATM adaptation layer protocols A system and method for synchronizing variable bit rate traffic between a source and destination in an Asynchronous Transfer Mode (ATM) network. The method includes designating a variable bit rate ATM Adaptation Layer (AAL) protocol to define ATM cell tra... | 04/29/2003 |
| 6556550 | Method and equipment for transmitting terminal interface user data and status information The invention relates to a mobile system in which the radio interface rate of a traffic channel and the intermediate rate of a transmission channel restrict the number of bits available for the transmission of terminal interface statuses (S), network inde... | 04/29/2003 |
| 6553012 | Method and apparatus for directional radio communication A method of directional radio communication between a first station (BTS4) and a second station (MS) comprises the following steps. A plurality of consecutive signals are received at the first station (BTS4) from the second station (MS). The signals are e... | 04/22/2003 |
| 6542501 | Speech transmission in a mobile communication network A digital mobile communication network and a switching system for a digital mobile communication network are provided. A traffic frame may include speech signals converted into a parameter group by a speech encoder and, as a whole, may be inserted into a ... | 04/01/2003 |
| 6539236 | Establishment of a connection between a base station and a mobile station using random access channels A connection establishment method for establishing a random access type connection using a random access channel, which is used in a radio system having several subscriber terminal equipments (37 to 38) and base stations (33 to 36) where one or more trans... | 03/25/2003 |
| 6535503 | Channel allocation method and radio system using a combination of TDMA and CDMA A radio system and a channel allocation method in a radio system are provided. The radio system and method have at least one base station communicating with terminals within a coverage area thereof. Air interface resources are allocated to different termi... | 03/18/2003 |
| 6532257 | Method for performing phase comparison, and phase comparator In a method for performing a phase comparison, and a phase comparator, two binary signals are compared using two functionally similar asynchronous state machines, which generate two output signals used for controlling a phase. A first state machine is fed... | 03/11/2003 |
| 6532254 | Receiver and receiving method simplifying the interference cancellation of multi-user detection in a direct sequence code division multiple access (DS-CDMA) telecommunication system The invention relates to a receiving method and a receiver. In the method, in order to remove interference of a received composite signal, narrowband interfering signal estimates corresponding to the interfering signals are subtracted from a narrowband co... | 03/11/2003 |
