Abstract: A method for quickly de-allocating physical channels (PDCH) assigned to packet switched calls in a GPRS supporting GSM digital cellular telephone network. An PDCH de-allocation RLC/MAC control message is broadcast to listening mobile stations from a base station subsystem (BSS) and contains a temporary flow identity (TFI) which is recognised by the listening mobile stations (MS). The mobile stations respond by terminating packet switched data transmissions on the identified PDCHs. The RLC/MAC message also identifies the number of PDCH time slots which can be used before de-allocation must occur.

Abstract: The invention relates to a method for transmitting speech and data simultaneously on a circuit switched two-way connection of a mobile communications system, which transfers speech and other data by use of discontinuous transmission, DTX, in which the sending is discontinued when it is indicated, that there is no information to be sent, and continued when it is indicated that there is information to be sent. In accordance with the method of the invention, the data to be sent are stored in buffer means and wait to be sent. When it is indicated, that there is no more information to be sent, the data stored in buffer means are sent until there is no more data to be sent or until it is indicated that there is information, speech or other data, to be sent, in which case the sending of data is discontinued and the sending of speech or other data is re-started. So the transfer of data takes place as a background process during transfer of speech or other data.

Abstract: This invention relates w a method of data transfer via a radio telephone network between a LAN (1) and a Mobile Station and to a data interface unit that applies the method. According to the method the LAN's data packets are formed, and the RLP control is stripped away from them, in the LAN-controller that is permanent connected to it; the data is packed into date packets in accordance with a data communications protocol and the data communications data packets are inserted into data frames of the radio telephone network when the data is transferred between the radio telephone units. The data interface unit (15) according to the invention is connected to a LAN-controller (14) on the side of the LAN (1).

Abstract: 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 network, as well as gateway support nodes for providing an inter-connection to an external packet data network (15). The support nodes (SGSN, GGSN) are connected to an intra-operator packet switched backbone network (13). The serving support nodes and the gateway support nodes collect charging information on usage of the radio interface and the data network (15), respectively. The system is further provided with a billing gateway support node (BGGSN) connected to the internal backbone network (BGGSN) to receive user-specific charging information collected by the other support nodes, and to forward the charging information to a charging system.

Abstract: The invention relates to a method for transmitting speech and data simultaneously on a circuit switched two-way connection of a mobile communications system, which transfers speech and other data by use of discontinuous transmission, DTX, in which the sending is discontinued when it is indicated that there is no information to be sent, and continued when it is indicated that there is information to be sent. In accordance with the method of the invention, the data to be sent are stored in buffer means and wait to be sent. When it is indicated that there is no more information to be sent, the data stored in buffer means are sent until there is no more data to be sent or until it is indicated that there is information, speech or other data to be sent, in which case the sending of data is discontinued and the sending of speech or other data is re-started. So the transfer of data takes place as a background process during transfer of speech or other data.

Abstract: A method and apparatus implementing the method for controlling the use of idle frames by a mobile station operating in a wireless telecommunication network. A control unit of the mobile station comprises the information on activities that can be carried out during idle frames in accordance with the mobile station's operating mode. At each idle frame, the mobile station checks said operating mode and activities to be carried out and of the activities to be carried out, determines the one that has the highest priority on the basis of said operating mode. For example, if necessary, the number of idle frames used for synchronisation burst search can be arranged as high as possible and, thus, enhance synchronisation.

Abstract: A method and apparatus for updating transmission power class information of a Mobile Station (MS) in a General Packet Radio Services (GPRS) network. The invention updates transmission power class information of the MS in the GPRS network by initiating a Routing Area Update (RAU) procedure in the MS. The RAU procedure includes sending from the MS to a Serving GPRS Support Node (SGSN) of the GPRS network a RAU request message including a MS Radio Access Capability (RAC) Information Element (IE) which includes an IE indicating a new transmission power class of the MS, accepting in the SGSN the IE indicating a new transmission power class of the MS included in the MS RAC of the RAU request message, and delivering to a Base Station (BSS) the IE indicating a new transmission power class of the MS, thereby updating the transmission power class information of the MS at the BSS.

Abstract: A method of operating a mobile radio network in which data is assembled into units by a first convergence protocol (SNDCP) layer prior to transmission of the data to a second; peer convergence protocol (SNDCP) layer. Data is provided to the first convergence protocol layer by one of a plurality of convergence protocol layer users (e.g. PDP entities). The method comprises assigning at least one access point identifier (NSAPI) to each user and exchanging between first and second layers one or more set-up messages (XID), each message containing a data compression/decompression algorithm identifier, a set of parameters for the identified algorithm, and a bitmap of access point identifiers, where the bitmap indicates those access point identifiers which are to make use of the identified algorithm and those which are not.

Abstract: The object of the invention is a device for personal communication, data collection and data processing, which is a small-sized, portable and hand-held work station comprising a data processing unit (2); a display (9); a user interface (10, 11); a number of peripheral device interfaces (12, 17); at least one memory unit (13); a power source, preferably a battery (3); and an application software. According to the invention the device also comprises a camera unit (14). The camera unit (14) comprises a camera (14a), preferably a semiconductor camera, and optics (14b) connected thereto, which are placed in the housing (1) of the device. Alternatively, the camera unit (14) is fitted on a PCMCIA card (15) which can be connected to the PCMCIA card slot (16) of the device. An object of the invention is also a PCMCIA card (15) provided with a camera unit (14).

Abstract: The object of the invention is a device for personal communication, data collection and data processing, which is a small-sized, portable and hand-held work station comprising a data processing unit (2); a display (9); a user interface (10, 11); a number of peripheral device interfaces (12, 17); at least one memory unit (13); a power source, preferably a battery (3); and an application software. According to the invention the device also comprises a camera unit (14). The camera unit (14) comprises a camera (14a), preferably a semiconductor camera, and optics (14b) connected thereto, which are placed in the housing (1) of the device. Alternatively, the camera unit (14) is fitted on a PCMCIA card (15) which can be connected to the PCMCIA card slot (16) of the device. An object of the invention is also a PCMCIA card (15) provided with a camera unit (14).

Abstract: The invention relates to a data transmission method in TDMA mobile communication system. In a mobile communication system employing a so-called multi-slot access technique, one or more time-slots may be allocated to a mobile station for data transmission at the data transfer rate required by an application using the mobile station. In the invention, upon establishing a data call, the mobile station (MS) indicates the mobile communication network (BTS, BSC, MSC) the minimum and the maximum requirements for the user data transfer rate (Set Up). The mobile communication network assigns the mobile station (MS) for a data call a channel configuration, depending on the network resources currently available in the mobile communication network and enabling a data transfer rate which is between the minimum requirement and the maximum requirement.

Abstract: The scope of the present invention is a method for data transfer in a digital mobile communications system, in which method it is handled data in certain layers according to certain protocols, in a certain layer out of said layers it is transferred user data in radio blocks (RB) over a physical radio channel between a mobile station and a fixed mobile communications network, for the transfer of said certain layer it is formed in the radio block (RB) a payload of a certain size comprising check bits (CHB) connected with the performing of the transfer and transfer bits (TB) available for the transfer of user data, each radio block (RB) is channel coded using a certain coding method and the size of said payload is dependent on the coding method.

Abstract: The invention relates to a method aiming at dynamic division of the radio capacity in a TDMA system dynamically between packet radio service and circuit switched service. According to the invention, some basic number of time slots are reserved for packet radio service and the rest are reserved for circuit switched service. When the traffic requirement of packet radio service increases, information regarding this is obtained by means of a request from a mobile station or through traffic measurement at the base transceiver station. This information is used as a criterion in allocating more time slots to packet radio service.

Abstract: In a cellular communication system, multiple TDMA time slot channels may be assigned to a single mobile station. The network may dynamically adjust, during a call, the number of channels assigned to any one mobile station based on resources available to the network and based on a level of service desired by the mobile station. In this manner, mobile stations having varying bandwidth requirements can be efficiently served by a single communication system.

Abstract: A mobile communications system and method for use in a high-speed data transmission between a mobile station and a mobile communications network in the mobile communications system based on time division multiple access (TDMA). The mobile communications system is arranged to use a different frequency for a transmitting direction and a receiving direction.

Abstract: For bidirectional transmission of packet data, a packet data service unit (Agent) is disposed in a digital time-division cellular network having a plurality of mobile stations and base stations, with at least one Base Transceiver Station (BTS) in each base station (BS) connected via radio communications channels with at least one mobile station (MS), and with a base station controller (BSC) connected to at least one BTS, and a Mobile Switching Center (MSC) connected to at least one BSC, which Agent connects the cellular network to a data network. As a mobile station is connected to the Agent, signalling related to connection formation characteristics of the network is first accomplished. As a result thereof, the mobile station and the Agent are provided with a number of stored parameters relating to each other. This situation creates or is called a virtual channel.

Abstract: A data transmission in a digital mobile communication system employing a so-called multi-channel access technique, in which one or more traffic channels may be allocated to a mobile station for data transmission in accordance with the data transfer rate required by the application using the mobile station. Upon establishing a data call, the mobile station indicates to the mobile communication network the maximum and optionally the minimum requirements for the user data transfer rate. The mobile communication network assigns the mobile station for a data call a channel configuration consisting of one or more traffic channels in connection with call set-up or handover, the channel configuration depending on the resources currently available in the mobile communication network and enabling performance of the data channel, which is not lower than the minimum requirement and not higher than the maximum requirement.

Abstract: A method and a system for expanding the capacity for transmission of information in a data frame which comprises at least an information element and a control element. After the data frame is subjected to channel coding, a portion of the control element is either removed or replaced by a divided portion of the information to be transmitted in the data frame.

Abstract: For data transmission in a digital mobile communication system, in a mobile communication system employing a so-called multi-channel access technique, one or more traffic channels may be allocated to a mobile station for data transfer, in accordance with the data transfer rate required by the application using the mobile station. Minimum and maximum requirements are determined for the data transfer rate of the user data. The mobile communication network dynamically adjusts the channel configuration assignment to the mobile station for the data call, so as to consist of one or more traffic channels, within the limits of the minimum and maximum requirements of the data transfer rate, depending on the changing allocation state of the resources of the mobile communication network.

Abstract: For packet data transmission between fixed network elements, such as a mobile exchange, a base station controller and base stations, in a mobile communication system, a node-to-node packet data transmission in a digital mobile communication network is carried out by using network elements as packet nodes and by utilizing existing signalling protocols between them for transmitting data packets. Only a processing of incoming and outgoing data packets is introduced into the network elements. The normal signalling messages of a mobile communication network used for packet data transmission are only provided with a new identifier indicating that the message contains packet data, so that the packet data messages can be forwarded to the packet data processing, instead of normal signalling message handling.