Method for cellular communications

• US 20050153705A1
• Filed: 01/12/2004
• Published: 07/14/2005
• Est. Priority Date: 08/12/2003
• Status: Active Grant

• Current Assignee: Vyacheslav Alexeevich Shevtosov, Yuri Alexeevich Gramakov
• Original Assignee: Vyacheslav Alexeevich Shevtosov, Yuri Alexeevich Gramakov
• Inventors: Shevtosov, Vyacheslav Alexeevich, Gramakov, Yuri Alexeevich
• Granted Patent: US 7,228,135 B2
• Time in Patent Office: Days
• US Class Current: 455/456.100
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 4/029 Location-based management or tracking services
• CPC Class Codes: H04W 48/18 Selecting a network or a communication service

Abstract

The invention relates to cellular communications systems. In order to enhance an efficiency of a cellular communications system a file in electronic form with fragments of a digital geographical map of the vicinity is preliminarily introduced into a control center of a cellular communications system, the map comprising coordinates and characteristics of base stations, arranged in cells and geographical coordinates of the borders of the cells, wherein in the process of radio communications, data on the location of a corresponding mobile station for communication therewith are determined with the aid of a receiver of a satellite location determination system, which receiver is built in a mobile station, and are transmitted through a base station to the control center of the cellular communications system, and the file of a fragment of the digital geographical map is transmitted from the control center of the cellular communications system through a corresponding base station to a mobile station, the map comprising coordinates and characteristics of the base station of that cell where this mobile station is, coordinates and characteristics of base stations of neighboring cells with coordinates of their borders, then a comparison of current data of its location and the coordinates of cell borders is carried out in the mobile station.

Claims

1. A method for cellular communications, characterized in that a file in electronic form with fragments of a digital geographical map of the vicinity is preliminary introduced into a control center of a cellular communications system, the map comprising coordinates and characteristics of base stations arranged in cells and geographical coordinates of the borders of the cells, wherein in the process of radio communications, data on the location of a corresponding mobile station for communication therewith are determined with the aid of a receiver of a satellite location determination system, which receiver is built in a mobile station, and are transmitted through a base station to the control center of the cellular communications system, and the file of a fragment of the digital geographical map is transmitted from the control center of the cellular communications systems through a corresponding base station to a mobile station, the map comprising coordinates and characteristics of the base station of that cell where this mobile station is, coordinates and characteristics of the base station of neighboring cells with coordinates of their borders, then a comparison of current data of its location and the coordinates of cell borders is carried out in the mobile station, when there is a transition of the mobile station to another cell—

“

handover”

—

and/or when there is a transition from one cellular communications network to another—

roaming—

data on completion of the “

handover”

or conduction of the roaming and changes of the working parameters of communications channels and produced in the mobile station and transmitted to a corresponding control center of the cellular communications system.

2. The method according to claim 1, characterized in that synchronization of operation of the mobile and base stations is carried out in accordance with signals of a satellite location determination system.

3. The method according to claim 1, characterized in that the dimension of the fragment of the geographical map transmitted to the mobile station and the periodicity of transmission of data on its location by that mobile station to the control center of the cellular communications system are changed depending on the speed of movement of the mobile station.

4. The method according to claim 1, characterized in that the current data on the location of the mobile station are used to control parameters of adaptive multibeam antenna systems of base stations communicating with the mobile station, including parameters for directing a directional characteristic of antenna systems toward the mobile station.

5. The method according to claim 1, characterized in that microcells within a cell that have working communication parameters different from working communication parameters of the instant cell, in particular other types of radio interfaces, protocols, communication standards, are dedicated, wherein coordinates of border and working parameters of these microcells, recorded in the control center of the cellular communications system, are transmitted through corresponding base stations to mobile stations located in the microcells.

6. The method according to claim 1, characterized in that the height of location of a mobile station above the surface of the earth, in respect to which corresponding cells or microcells are dedicated, is selected as one of the working parameters, and a vertical “

handover”

is provided for.

7. The method according to claim 1, characterized in that the power level of transmitters of mobile and base stations are adjusted depending on their distance from one another on the basis of location data of the mobile and base station, and also of digital geographical maps, used in the control center of the cellular communications system.

8. The method according to claim 1, characterized in that during the transmission of the file of the fragment of the digital geographical map from the control center of the cellular communications system through a base station to a corresponding mobile station, adaptation of the dimensions and configuration of the cells and also conditions providing for “

handover”

to a load created by mobile stations in a cell are carried out.

9. The method according to claim 1, characterized in that depending on the location of a mobile station in a definite cell or definite zone of cellular network communication, of each mobile station, the priorities of access to communications services of the extreme qualitative communication characteristics are determined or access to the communications services or a portion of the communications services on separate sections of the cellular communications zone or the cell is eliminated.

10. The method according to claim 1, characterized in that a pointwise or zone tariffing of communication services provided to clients is provided with an arbitrary configuration of the zones.

11. The method according to claim 1, characterized in that current data on the location of a mobile station, which are available to a mobile client of a cellular network on a global scale, are used to select a mobile communications network and an accessible type of service within that network by a corresponding programming of the mobile station by a client or operator of mobile communications, including taking into account tariffs for communication services in communication networks of different operators.