摘要:
Downlink and uplink communication resources to ensure network coverage and satisfy assigned cell traffic requirements in a cellular communication network are allocated by setting (102) a given balance of downlink and uplink communication resources while leaving a part of said downlink and uplink communication resources remaining to be allocated. Downlink cell radius and uplink cell radius values are then determined (103) which ensure network coverage with the resources as previously allocated. An effective cell radius is then selected (1041) as the smaller of the downlink cell radius and uplink cell radius and then a first check (1042) is made as to whether the effective cell radius selected satisfies the assigned cell traffic requirements. If that first check (1042) yields a negative result, the effective cell radius is updated (10425) by reducing the value thereof and repeating the previous step by using the reduced updated value. Once the first check (1042) yields a positive outcome, a further check (1044) may be made as whether the resources remaining to be allocated for downlink and uplink have a difference in excess of a given amount. If the further check (1044) yields a positive outcome, the whole procedure is repeated by setting (1046) an updated balance of downlink and uplink communication resources reducing tϊiat difference. Once the further check (1044) yields a negative outcome, the communication resources are finally allocated on the basis of the current balance.
摘要:
A method (200,300,600) is proposed for predicting coverage area of a radiocommunications network including a plurality of network cells distributed over a geographic area. The method includes calculating (205,305,605,210-225) by simulation an irradiated electromagnetic field irradiated by a radio base station of the network in a plurality of measure locations within the geographic area corresponding to respective expected positions of a user terminal. Said calculating (205,305,605,210-225) comprises, for each of said measure locations, calculating a basic transmission curve (205a) indicative of a basic attenuation of a radioelectric signal strength in the measure location, associating (205b,205c,305c,605c) to the basic transmission curve at least one correction factor for refining the radioelectric signal strength basic attenuation by taking account of shielding effects on the radioelectric signal strength due to obstacles to the propagation of the radioelectric signal. In the solution according to one or more embodiments of the present invention, the phase of associating (205b,205c,305c,605c) to the basic transmission curve at least one correction factor includes calculating (305b, 605b) for a measure elementary area which the measure location is associated thereto at least one equivalent volume parameter indicative of an equivalent volume of said obstacles taking into account a plurality of neighbor elementary areas in a prescribed neighborhood relationship to the measure elementary area, and calculating (305c,605c) an equivalent volume correction factor by associating each one of the at least one equivalent volume parameter to a corresponding parametric curve expressing the signal attenuation as a function of the respective at least one equivalent volume parameter.