Nokia Corporation

Intellectual Ventures I LLC

Nokia Networks Oy

Spyder Navigations LLC

Nokia Siemens Networks Oy

Petteri Hakalin

Uwe Schwarz

Antti Tölli

Heikki Hirvonen

Jari Hulkkonen

Kari Niemel&auml;

Juan Melero

A communication system comprising a network element, a mobile station, and a plurality of radio access means. The plurality of radio access means is configured to provide communication services to the mobile station. A radio access means of the plurality of radio access means includes a plurality of cells. The plurality of radio access means use different communication methods. The network element is configured to order the radio access means based on provided information. The provided information is associated with the plurality of radio access means and is based on a plurality of parameters associated with each of the plurality of radio access means. The network element is further configured to select a target radio access means of the plurality of radio access means based on the ordering and to send a request to the mobile station to perform compressed mode measurements based on the selected target radio access means for selecting a cell associated with the selected target radio access means.

Measurements in communications systems

A method of selecting a cell for handover of a mobile station to another communication system. A command is sent to a mobile station from a first network element. The command includes a request to perform compressed mode measurements at the mobile station of a neighboring cell. The neighboring cell uses a different communication means than the first network element. Compressed mode measurement results are received from the mobile station at the first network element. The received compressed mode measurement results are weighted with indicators of a prioritized neighbor cell list to form a prioritized list. A second command is sent to the mobile station from the first network element. The second command includes a second request to decode identification codes at the mobile station based on the prioritized list. An indicator of a suitable cell from the prioritized list is received from the mobile station at the first network element. An instruction is sent to the mobile station from the first network element after receiving the indicator. The instruction stops decoding identification codes at the mobile station.

A method of performing compressed mode measurements for selecting communication means in a communication system. Statistics are collected on handovers from a cell in a communications system to a plurality of other cells in the communications system. A cell load of each cell of the plurality of other cells is weighted by a percentage of handovers from the cell to the respective one of the plurality of other cells. A threshold is determined based on the weighted cell loads. The threshold can be used to trigger a load based handover from the cell to one of the plurality of other cells.

The invention relates to a radio resource control method, a mobile communications system and a network element implementing the method. According to the invention, the cell change procedures performed by the user equipment in an idle state are controlled dynamically with control information that is adjusted according to a predetermined time pattern. The invention enables for instance an advanced cell change in an idle state, thus reducing the probability of a handover while the user equipment is in a dedicated connection to the network.

Radio resource control method in mobile communication system, mobile communication system and network element

A method for estimating quality of communications between a transmitter and a receiver over a communications link operable to carry data in at least one of a plurality of different compressed forms, the method comprising: detecting an error rate of the communications as received; receiving at a quality estimation unit an indication of the detected error rate and an indication of the at least one of the plurality of compressed forms in use over the link; and the quality estimation unit estimating the quality of the communications by means of both the indication of the detected error rate and the indication of the at least one of the plurality of compressed forms.

Estimating communication quality

The invention relates to a method for dividing traffic between cells and a cellular radio system comprising at least a base station ( ) of a particular cell ( ), at least one subscriber terminal ( ) communicating with the base station ( ), and cells ( ) surrounding the particular cell ( ), and subscriber terminals ( ) communicating therewith, the cellular radio system being arranged to measure the amount of traffic and interference in the system, and to calculate a weighting value for each cell based on the network measurements. In the method of the invention the base station ( ) of the particular cell is arranged to adjust the size of its coverage area on the basis of the weighting value of the cell ( ).

Method for dividing traffic in a cellular radio network

The invention relates to a method for determining speed of terminal in a radio system, and to a receiver in a radio system, the receiver comprising means for taking samples from a received signal at given intervals, means for determining a signal instantaneous strength by measuring a signal strength of each sample, and means for calculating a mean strength for a sampled signal within a given time window. For preferably determining the terminal speed the receiver of the invention comprises the means for comparing instantaneous strength values with a calculated mean strength and for calculating how frequently an instantaneous strength moves above or below a mean value within the given time window, and the means for determining an apparatus speed based on the number of transitions.

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Málaga, Spain

Petteri Hakalin