Patent RU-2193818-C1 (RU)
Title: Procedure of information transmission to mobile objects
Inventor: URETSKIJ JA S
IPC: H04B7/26
Filed: 2001-03-23
Granted: 2002-11-27
Abstract: FIELD: mobile radio communication. SUBSTANCE: procedure of information transmission to mobile objects consists in arrangement of base stations which coverage zones are set equal to length of leg of each regular hexagon in ideal cells presenting equal regular hexagons tightly covering serviced zone. Different working frequencies of information radio signals emitted by all base stations are specified. Each base station specifies one working frequency for radio signals emitted by this base station from specified working frequencies. Each mobile object located within limits of serviced territory is assigned with working frequencies of information radio signals received by this mobile object. Information radio signals corresponding to information transmitted to mobile objects located within limits of serviced territory are transmitted by one base station which is source of transmitted information to base stations in which coverage zones mobile objects are located. From these base stations information radio signals corresponding to information are emitted to mobile objects located within coverage zones of these base stations and information radio signals are received on specified working frequencies. Base stations are positioned in vertexes of specified regular hexagons. Number of specified working frequencies is equal to six. Working frequency of radio signals specified for each base station arranged in vertex of regular hexagon and emitted by this base station is one from six assigned working frequencies different from specified working frequencies of radio signals emitted by adjacent base stations which are base stations located in adjacent vertexes of these regular hexagons. Working frequencies of information radio signals specified for each mobile object and received by this mobile object are five different working frequencies from specified six frequencies. Information signals corresponding to information transmitted to mobile objects located within limits of serviced territory are corresponding information radio signals. Transmission of these information radio signals by base station which is source of transmitted information to base stations in which coverage zones mobile objects are located consists in that base station which is source of transmitted information emits information radio signals on specified working frequency and in simultaneous reception of information radio signals at all base stations adjacent with reference to base station which is source of transmitted information and their emission on corresponding specified working frequencies. Then all other base stations which are adjacent with reference to specified base stations simultaneously receive information radio signals emitted by specified base stations and emit them on corresponding specified working frequencies. Information radio signals emitted by previous base stations are simultaneously received and emitted on corresponding specified working frequencies thereupon in same manner, consistently, along all directions from base station which is source of transmitted information to boundaries of serviced territory by all other following base stations which are adjacent with reference to previous base stations. Each base station except base station which is source of transmitted information emits information radio signals on specified working frequency and receives information radio signals on one working frequency specified for this base station. Each base station measures power of information radio signals received from adjacent base stations. After this each base station emits service radio signals carrying information on measured value of power. Each specified adjacent base station receives specified service radio signals and adjusts power of emitted information radio signals by measured values of power of information radio signals received by base stations which are adjacent with reference to specified adjacent base station and emitted by this base station. EFFECT: simplified procedure and raised quality of reception of information by mobile objects on basis of rational positioning of base stations on serviced territory. 6 dwg