Patent application number | Description | Published |
20080268856 | Method For Assigning Scrambling Codes In A Cdma Cellular Mobile Communications Network - A method of assigning scrambling codes to cells of a CDMA cellular mobile communications network includes assigning to each cell of a set of cells of a network area a cell attribute adapted to identify a cell typology, and, for each cell, assigning a respective primary scrambling code according to the cell typology, exploiting said cell attribute. The cell attribute includes a first attribute value adapted to identify a cell in which a complexity of computation to be performed by the user equipment for determining the cell primary scrambling code is to be minimized, and a second attribute value adapted to identify a cell in which a synchronization time of mobile communications user equipment is to be minimized. If the cell has an attribute value equal to said first attribute, the cell is assigned a primary scrambling code different from the primary scrambling codes assigned to neighboring cells. If the cell has an attribute value equal to said second attribute, the cell is assigned a primary scrambling code not belonging to a code group to which a primary scrambling code assigned to a neighboring cell belongs. | 10-30-2008 |
20090176500 | Method for Planning a Cellular Mobile Telecommunications Network - A method for planning a cellular mobile telecommunications network includes at least one network cell and is intended to provide network services to users located in the network cell. The method includes: a) initializing, for the at least one network cell, a service area and a transmission power for each user equipment; b) estimating a total power received by the at least one network cell from user equipment located in the service area and using the at least one network service; c) based on the estimated total received power, varying the transmission powers required to user equipment located in the service area in order to reach a target quality of service constraint for the at least one network service; d) iterating the steps b) and c) until a stability condition is reached wherein the transmission power variation for at least a predetermined fraction of the user equipment is lower than a predetermined threshold; e) calculating a total received power corresponding to the transmission powers at the end of step d); f) calculating an uplink load factor corresponding to the total received power calculated in step e); g) ascertaining whether the calculated uplink load factor is lower than a maximum uplink load factor, and, in the negative case: h) restricting said service area; and i) repeating the steps from b) to g). | 07-09-2009 |
20090305709 | Method for Planning a Cellular Mobile Telecommunications Network - A method for planning cellular mobile telecommunications network including at least one network cell and intended to provide network services to user equipment located in the network cell, wherein the network services include at least one network service deliverable at a plurality of provisioning rates, including evaluating an uplink coverage of the network in a predetermined service area. The evaluation of the uplink coverage includes: a) forecasting a number of user equipment located in the service area; b) setting a current provisioning rate to the highest of provisioning rates; c) estimating a power required for each user equipment for accessing the at least one network service in the service area at the current provisioning rate; and d) comparing the estimated required power to a maximum power deliverable by each user equipment. If the estimated required power exceeds the maximum deliverable power: e) determining a reduced service area wherein the estimated power required to each user equipment of a reduced number of user equipment located therein for accessing the at least one network service at the current provisioning rate does not exceed the maximum deliverable power; f) updating the current provisioning rate to the immediately lower provisioning rate of the plurality; and g) repeating steps c) and d) and, if required, steps e) and f). | 12-10-2009 |
20100015977 | METHOD FOR BUILDING NEIGHBORING CELLS LISTS IN CELLULAR RADIOCOMMUNICATIONS NETWORKS - A method for defining lists of neighboring cells of a cellular radiocommunications network, includes: obtaining a description of mobility paths followed by users of mobile communications terminals in a geographic area of interest; and including a first cell in the list of neighboring cell of a second cell in case, based on the mobility paths' description, to ascertain that there is a mobility path joining the first and the second cells. | 01-21-2010 |
20100035619 | METHOD FOR PLANNING A CELLULAR MOBILE TELECOMMUNICATIONS NETWORK - A method for planning a cellular mobile telecommunications network includes at least one network cell and is intended to provide network services to users located in the network cell, wherein the method includes: a) setting a current provisioning rate to the highest of the provisioning rates; b) estimating a power required to the at least one network cell for providing the at least one network service in the service area at the current provisioning rate; c) comparing the estimated required power to a maximum power deliverable by the at least one cell; and, if the estimated required power exceeds the maximum deliverable power; d) reducing the service area so that the estimated power required to the at least one network cell for providing the at least one network service at the current provisioning rate in the reduced service area does not exceed the maximum deliverable power; e) updating the current provisioning rate to the immediately lower provisioning rate of said plurality, if any; and f) repeating steps b) and c) and, if required, steps d) and e). | 02-11-2010 |
20100037279 | METHOD OF ADJUSTING TIMING TRANSMISSION PARAMETERS IN A SINGLE FREQUENCY NETWORK - A method of adjusting the transmission station parameters in a digital video broadcasting network, includes determining, in at least one area element of a geographic area of interest, delays among signals received from a plurality of transmission stations; calculating, based on the determined delays, transmission delays to be applied to the transmission stations of the plurality, wherein the calculated transmission delays are adapted to reduce the delays among the received signals; and applying the calculated transmission delays to the transmission stations of the plurality. The choice of the timing parameters is based on a repetition of a random perturbation of a control parameter and the consequent evaluation of the result of the result obtained. | 02-11-2010 |
20100128806 | METHOD FOR PLANNING A DIGITAL VIDEO BROADCASTING NETWORK - A method and a system for planning a digital video broadcasting network in a geographic area of interest includes simulating an electromagnetic field propagation in a plurality of area elements of the area of interest; for at least one area element of the plurality, performing a decoding of the simulated radio signals which, as a result of the simulating, are received at that area element, and based on a result of the decoding, determining a service coverage in the area of interest, wherein the network is a digital video broadcasting-handheld network and performing a decoding of the radio signals includes changing a position in time of a decoding time window, in particular, for determining the position wherein the ration signal/noise is maximum. | 05-27-2010 |