Abstract: A solution for optimizing beamforming configurations and transmit power allocation configurations in a telecommunication system comprising a base station and a plurality of user entities is provided. The base station and the user entities are capable of multiple-input multiple-output (MIMO) communications, i.e. capable of communicating through spatial subchannels. The base station calculates iteratively optimal beamforming configurations for the base station and for each user entity and transmit power allocation configurations for each spatial subchannel used in MIMO communications. The base station carries out the calculation on the basis of channel state information received from the user entities by utilizing the information on correlation of different spatial subchannels, i.e. interference between the subchannels, in order to update beamforming configurations and transmit power allocation configurations.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A system and method for traffic management in a radio system monitors at least one cell load parameter of non-real-time users in a radio cell. A cell reselection process is triggered in the radio cell on the basis of a cell load parameter exceeding a pre-set cell load threshold, based on at least one cell load parameter. The non-real-time users perform cell reselection and triggering the selected non-real-time users to perform cell reselection.

Abstract: There is provided a method comprising: determining a phase difference between at least two antenna units of a distributed antenna system on the basis of at least one pilot signal received from at least one of a plurality of antenna units; and transmitting phase correction commands to a common base station of the plurality of antenna units on the basis of the determined phase difference in order to synchronize carrier phases between at least two antenna units of the distributed antenna system.

Abstract: A traffic management method includes the steps of dividing a time slot into sub-blocks, defining the amount of available capacity for non-real time use in a time slot, defining the number of sub-blocks reserved by real time use in a time slot, defining the number of sub-blocks reserved by non-real time use in a time slot, defining the number of free sub-blocks in a time slot on the basis of sub-blocks reserved by real time use and sub-blocks reserved by non-real time use, calculating a sub-block reservation rate for a time slot and averaging a sub-block reservation rate for a time slot to get down link sub-block reservation rate.

Abstract: A solution for optimizing beamforming configurations and transmit power allocation configurations in a telecommunication system comprising a base station and a plurality of user entities is provided. The base station and the user entities are capable of multiple-input multiple-output (MIMO) communications, i.e. capable of communicating through spatial subchannels. The base station calculates iteratively optimal beamforming configurations for the base station and for each user entity and transmit power allocation configurations for each spatial subchannel used in MIMO communications. The base station carries out the calculation on the basis of channel state information received from the user entities by utilizing the information on correlation of different spatial subchannels, i.e. interference between the subchannels, in order to update beamforming configurations and transmit power allocation configurations.

Abstract: A method for use in a network covering a region, said region comprising a plurality of areas, a user being assigned to at least oen of said area and having associated therewith a plurality of candidate areas to which the user may be assigned, said method comprising the steps of receiving information identifying said plurality of candidate areas; estimating for each candidate area a parameter, said parameter assuming that said user is assigned to said candidate area; and prioritising said plurality of candidate areas which takes into account the estimated value of said parameter.

Abstract: 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.

Abstract: The invention relates to traffic management in a radio system. The method comprises: monitoring at least one cell load parameter of non-real-time users in a radio cell; triggering a cell reselection process in the radio cell on the basis of a cell load parameter exceeding a pre-set cell load threshold; selecting, based on at least one cell load parameter, the non-real-time users to perform cell reselection; and triggering the selected non-real-time users to perform cell reselection.

Abstract: A method of performing compressed mode measurements for selecting communication means in a communication system. The communication system comprises a network element and a plurality of communication means for serving a mobile station. The method comprises providing information associated with the plurality of communication means to the network element, said information based on a plurality of parameters associated with each of the plurality of communication means; ordering the communication means based on said information; and performing compressed mode measurements at the mobile station based on said ordering.

Abstract: A data transmission method utilizing time division duplex between a first and a second transceiver is provided. The first transceiver transmits a signal to the second transceiver using given transmission parameters. The second transceiver estimates a signal quality metric from the signal, the metric depicting signal quality degradation caused by interference. The second transceiver compares the estimated metric to a target metric, determines an offset value on the basis of the comparison, and transmits the offset value to the first transceiver, which adjusts transmission parameters on the basis of the offset value, and transmits a signal to the second transceiver using the adjusted transmission parameters.

Abstract: The present invention optimises and reduces the needed information exchange between network entities through the interfaces which connect them. The main property of the event based reporting method of the present invention is its flexibility because it is able to change the reporting rate depending on the value of the input parameter in each instant of time. That is, it sends more reports or less reports depending on if the parameter to be reported is changing quickly or slowly, respectively. The main idea of the present invention is that reports of a data network parameter are based on the relative change of the data network parameter value with respect to the previously reported data network parameter value.

Abstract: A traffic management method includes the steps of dividing a time slot into sub-blocks, defining the amount of available capacity for non-real time use in a time slot, defining the number of sub-blocks reserved by real time use in a time slot, defining the number of sub-blocks reserved by non-real time use in a time slot, defining the number of free sub-blocks in a time slot on the basis of sub-blocks reserved by real time use and sub-blocks reserved by non-real time use, calculating a sub-block reservation rate for a time slot and averaging a sub-block reservation rate for a time slot to get down link sub-block reservation rate.

Abstract: The objective of the present invention is to provide means for exchanging usage information in the multioperator mobile networks. Despite the high amount of different reporting alternatives of the present invention, they are not contradicting each other but are only options for different needs. Also the purpose of the present invention is to provide a fair and easy solution to monitor the usage of the shared network.

Abstract: A communication system covering an area, said system comprising a plurality of first means, each of said first means being arranged to control the allocation of channels in a part of said area, at least one of said area, at least one of said first means being arranged to send information relating to channel allocation in the part of the area associated with said at least one first means to at least one other of said first means, said at least one other of said first means being arranged to take into account said received information when controlling the allocation of channels in the part of the area associated with said at least one other first means.

Abstract: A method for use in a network covering a region, said region comprising a plurality of areas, a user being assigned to at least oen of said area and having associated therewith a plurality of candidate areas to which the user may be assigned, said method comprising the steps of receiving information identifying said plurality of candidate areas; estimating for each candidate area a parameter, said parameter assuming that said user is assigned to said candidate area; and prioritising said plurality of candidate areas which takes into account the estimated value of said parameter.