Abstract:
A method of increasing the accuracy of geographical information of a mobile station of a radio communication system is described. The geographical information of the mobile station is evaluated without using a GPS receiver. Stored positions of other mobile stations using GPS receivers, are used to adapt the geographical information.
Abstract:
A method of optimizing the performance of a mobile radio system in which different transfer modes correspond to different bit rates corresponding to different modulation schemes and the protocol architecture uses a radio link control layer that can operate in an acknowledged mode or in a non-acknowledged mode, in which method, in a transfer mode corresponding to the highest bit rates, acknowledgment information is sent in the non-acknowledged mode from a radio link control receiver to a radio link control sender and can be taken into account by the radio link control sender.
Abstract:
To provide a mobile communication system which can distribute area information from a radio Node to a mobile terminal in a unit of cell. A mobile communication system comprising: a radio Node having a plurality of cells; host apparatus connected to the radio Node so as to be able to communicate information with the radio Node; and a mobile terminal receiving information distributed from the radio Node, wherein area information different for each cell is distributed from the radio Node to the mobile terminals 40 existing in the cell included in the radio Node, the area information is transmitted, together with control information including type information added according to a content of the area information, from the host apparatus to the radio Node, and the cell to be distributed with the information is determined based on the type information.
Abstract:
The present invention provides a method of dimensioning a transport network for a radio access network of a mobile radio network, said method including dynamic adaptation of the transport configuration as a function of transport traffic capacity requirements.
Abstract:
A mobile station in a mobile radio system can send different types of packet mode resource requests to a network, corresponding to different transfer modes that can be supported by the mobile station, a mobile station being able to use one or the other of request types corresponding to transfer modes that it supports, in accordance with its requirements. In a method of allocating packet mode resources in the mobile radio system, for signaling data transfer in the uplink direction, the signaling being liable to generate an allocation of packet mode resources in the uplink direction for user data transfer, a mobile station uses a type of packet mode resource request corresponding to a transfer mode best suited to the requirements of the user data transfer.
Abstract:
The invention relates to a method of preparing signals (X and Y) to be compared to establish predistortion at the input of an amplifier (12), the signals comprising a signal (X) before amplification and a signal (Y) after amplification by said amplifier. Preparation includes time aligning (22) the signal before amplification (X) with the signal after amplification (Y) before using them to establish said predistortion. The invention preferably operates in two stages, namely a stage of coarse time alignment, in which the signal before amplification (X) is subjected to a time delay comprising an integer number of first time units, and a stage of fine time alignment, in which a delay or advance value of a fraction of the first time unit is determined.
Abstract:
In a method of transmitting more than one carrier using the same power amplifier associated with a linearization arrangement, a composite signal comprising the carriers is clipped before it is applied to the input of the amplifier in order to limit the ratio of the peak power to the average power of the signal to be transmitted. Each carrier is clipped individually and the clipping power density for each carrier is a function of its power.
Abstract:
A method of managing processing resources in a mobile radio system in which a first entity manages processing resources provided in a separate second entity, in which method: the second entity signals to the first entity a resource model representing its processing capacities, and different types of first and/or second entities are provided and able to support different types of resource models corresponding to different representations of said processing capacities, and an additional protocol is provided enabling the first and second entities to use the same type of resource model.
Abstract:
A method of managing processing resources in a mobile radio system, in which a first entity manages radio resources and corresponding processing resources, the latter being provided in a second entity separate from the first entity, in which method: the second entity signals to the first entity its global processing capacity, or capacity credit, and the consumption law, or quantity of said global processing capacity, or cost, for different spreading factor values, the first entity updates the capacity credit on the basis of the consumption law, and in the case of multicode transmission using N spreading codes, said updating is effected on the basis of the cost for at least one of the N spreading codes.
Abstract:
A method of establishing a connection between a mobile terminal and a network in a mobile radio system, for a mobile terminal having a radio control connection established with the radio access network of said system, the method comprising the mobile terminal sending the radio access network at least one establishment cause item of information indicating a connection establishment cause and/or a call establishment cause in the case of a connection establishment cause corresponding to establishing a call.