Nokia Corporation

Nokia Networks Oy

Nokia Telecommunications Oy

Leif Friman

Harri A Jokinen

Johanna Katariina Pekonen

Kari Juhani Niemelä

Arto Kangas

Juha B&auml;ck

Jukka Pietilä

Pasi Ylinen

Tapani Virtanen

Harri Helminen

Jukka Pietila

The present invention relates to reporting cell measurement results associated with a plurality of cells of a cellular communication system. The reporting is transmitted from a station via a radio interface to receiver element of a cell serving the station. The cells are arranged in a reporting order that is to be used by the station for the reporting. The cell measurements are performed by the transceiver station for getting cell measurement results associated with a number of the cells. Relevant cell measurement results are then selected and the selected results are transmitted in the defined reporting order.

Reporting cell measurement results in a cellular communication system

A network device sends information on at least one cell of second cell layer of a second technology access network, the at least one cell of second cell layer being located in an area of a cell of first cell layer of a first technology access network, wherein the information comprises location information of the at least one cell of second cell layer. A mobile device receives this information and performs calculations based on this information serving to aid in a process of entering into a wanted cell of the second cell layer.

Pico cell system access using cellular communications network

The present invention relates to a mobile system, which includes a base station controller and at least a first and a second base station, which comprise switching means for switching transceiver units of the base stations onto a particular channel of a plurality of optional telecommunication channels between the base station controller and the base stations. In order for the telecommunication channels to be utilized efficiently, the base station controller comprises control means, which allocate in connection with call set-up at least one of said telecommunication channels to the first or to the second base station for the duration of the call, and which transmit a predetermined message on the allocated channel to the base station to which the channel is allocated, the switching means of the first and, correspondingly, of the second base stations being responsive to said message for switching the transceiver units to the channel assigned by said message.

Channel allocation method and device in mobile system and a mobile system base station

A communications system comprising a first plurality of cells operating in accordance with a first mode and a second plurality of cells operating in accordance with a second mode, each of said cells being served by a respective first station, at least one second station arranged to establish a connection with at least one first station, said at least one second station being associated with said first plurality of cells or said second plurality of cells during said connection and means for determining which plurality of cells said second station is associated after said connection has been completed.

Cell selection in a communications system

The invention relates to a method of allocating Abis interface transmission channels in a packet cellular radio network, and to a network part utilizing the method. The method comprises () allocating fixedly a certain number of transmission channels to base-station-specific operations and maintenance signalling and to transceiver-specific telecommunication signalling; and () allocating dynamically, using in-band signalling, a necessary number of transmission channels to packet data transfer, the amount of packet data varying according to the modulation and coding scheme used on a Um interface.

Allocating Abis interface transmission channels in packet cellular radio network

A mobile communication system includes a mobile services switching center, a base station and a transcoder. The transcoder receives frames containing speech parameters from the base station and receives speech signals from the mobile services switching center which it encodes into speech parameters to be transmitted to the base station in the frames. To enable the cooperation between the transcoder and the base station to be controlled as simply as possible, the mobile communication system includes a controller for transmitting predetermined control information to the base station, whereby the base station is arranged to control the operation of the transcoder via the telecommunication connection in response to the reception of the control information.

Method for controlling a transcoder of a mobile communication system

The invention is related to signaling in cellular telecommunication systems, namely to reduction of resources used by signaling. According to the invention, a list of neighbor cell information is communicated to a mobile station in compressed form. Preferably, the neighbor cell information list is transmitted in such a way, that a table reciting parameter values in use by the neighboring cells, and for each of these cells, each value listed in the table is represented by a pointer such as an index to the table. In this way, same parameter values do not need to be repeated for each cell using the same values. The neighbor cell information list can be further compressed by expressing a first frequency parameter value in the normal way, but expressing further frequency parameter values relative to the first, or as in a further embodiment, relative to the previous frequency parameter value. Such ways of representing frequency values allow the use of fewer bits to represent the frequency values.

Method for communication of neighbor cell information

The present invention relates to a method of changing a telecommunication channel in a mobile communication system for a given mobile station, which mobile station has a connection in progress, and the connection is provided with a channel on a radio connection between the mobile station and base station system and a telecommunication channel between the base station system and a mobile services switching center. In order to facilitate the changing of the telecommunication channel the method includes putting a new telecommunication channel between the mobile services switching center and the base station system, indicated by the handover message into use for the connection, and connecting the channel used to the new telecommunication channel in such a way that the radio channel remains unchanged irrespective of the change of the telecommunication channel.

Method of changing communication channel in mobile system

The present invention relates to a mobile communication system comprising a rate adaptation unit (TC) which communicates with a base station system via first data transmission channels (Ater -Ater ) and with a mobile services switching center (MSC) via second data transmission channels (A -A ). To enable available data transmission capacity to be utilized as flexibly as possible, the base station system comprises: allocation means ( ) which keep a record of the first data transmission channels (Ater -Ater ) and which are responsive to a message sent by the mobile services switching center (MSC) for allocating one or more free first data transmission channels (Ater , Ater ) for the call, and transmission means ( ) which are arranged to send the mobile services switching center (MSC) a message which indicates which second data transmission channel (A ) the rate adaptation unit (TC) selects for the call when the allocation means ( ) have allocated one or more first data transmission channels (Ater , Ater ) for the call.

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Järvenpää, Finland

Leif Friman