RU2341896C2 - Technique for establishing mobile communication between mobile and stationary objects - Google Patents

Abstract

FIELD: mobile communication.

SUBSTANCE: information is transmitted on virtual channels, passing through intermediate mobile and stationary switching nodes, controlled by the central switching node, located in any residential area, through which location of switching nodes relative each other can be controlled. Information transmission routes are rearranged.

EFFECT: larger active zones of cellular networks.

2 dwg

Description

The invention relates to the field of mobile communications, and in particular to a method of organizing communication with remote objects where a large number of subscribers are located using mobile base stations, in particular for water areas.

A known method of organizing cellular communications using high-altitude platforms (see RF patent No. 2180767, 2001).

The disadvantages of the method are: a larger cell diameter and, as a result, a lower system capacity than terrestrial cellular communication systems, as well as a greater remoteness of the base station antenna from the mobile terminal, which leads to an increase in channel attenuation and transmission distortion. All this leads to a decrease in the quality of customer service.

The closest analogue of the proposed method is the method (see the journal "Sotovik" from 01.03.2005 (http://www.sotovik.ru/news/news_10110.html)), which includes the following basic operations: equipment of ships with base stations, with which GSM cellular communication and connection of base stations to multichannel satellite terminals, which via satellite channels organize communication with terrestrial networks, are provided.

The disadvantage of this method is the intensive use of satellite communication channels, which leads to a rise in the cost of the service itself.

The technical problem is the creation of a cellular communication network in extended water areas outside the coverage of existing cellular communication systems.

The technical result is an increase in the coverage area of cellular communication networks.

It is achieved by the fact that in the water area where objects are located whose location does not change - stationary objects (artificial and natural islands, floating holes, etc.) and objects with established travel routes - moving objects (cruise ships, ferries, cargo ships, etc. ), the transmission of information is carried out through virtual channels organized using radio-relay lines between objects. Radio-relay lines pass through intermediate mobile and stationary switching nodes located on mobile and stationary objects located in the served water area. Management is carried out from the central switching unit.

The system consisting of these objects, moving along the trajectory 1, at any time T forms a “chain” 3, where the “nodes of the chain” 2 are moving and stationary objects (Fig. 1 “System state at time T”).

If you imagine the "nodes of the chain" 2 as the centers of the cells 4, then the coverage area is formed in the form of a "loop" 5 (Fig.2 "Location of cells with centers in the nodes of the chain").

In the centers of cells (nodes of the chain) set up switching nodes (CC) - the base station of cellular communication systems with antennas.

The cellular communication network is controlled from a central switching node (CSC) located in any locality. The CCM communicates the proposed mobile cellular network with existing communication networks, and also manages the proposed mobile cellular network.

Examples of specific implementation of the method:

Example 1. Communication was carried out between subscribers located in different mobile objects located in the same water area.

In the water area with the number of objects n equipped with UK _i , where i∈ (1; n) are the numbers of objects. The communication between the subscriber (AB1), which was served by UK _i , with the subscriber (AB2), which was served by UK _j , where j∈ (1; n), and i ≠ j, was carried out as follows:

We established a connection between AB1 and CC _i , where CC _i located on one of the moving objects (for example, a cruise liner), through a communication channel formed through intermediate CCs (both mobile and stationary), requested permission from the CC for connection with CC _j located on another mobile network entity (e.g., ferry). Using the CCU, we evaluated the situation on the network and chose the optimal route through the intermediate CCs from CC _i through the CCC to YK _j ; a call was made through the established virtual channel through CC _j AB2. If AB2 responded, information was transferred from AB1, while the central control center constantly monitored the location of the intermediate CCs through which the communication channel passed and, if necessary, re-planned the route.

Example 2. Communication was carried out between subscribers located on a mobile site and a subscriber of another network.

In the water area with the number of objects n equipped with UK _i , where i∈ (1; n) are the numbers of objects. The connection between the subscriber (AB1), which serves UK _i , with the subscriber (AB2), which serves YK _j , where j is the number of the switching node of another communication network.

We established a connection between AB1 and CC _i , where CC _i located on one of the moving objects (for example, a cruise liner), through a communication channel formed through intermediate CCs (both mobile and stationary), requested permission from the CC for connection with CC _j belonging to another network (for example, a public switched telephone network). Using the CCU, we assessed the situation on the network and chose the optimal route through the intermediate CCs from CC _i through the CC to CC _j , a call was made through the established virtual channel through CC _j AB2. If AB2 responded, information was transferred from AB1, while the central control center constantly monitored the location of the intermediate CCs through which the communication channel passed and, if necessary, re-planned the route.

A positive effect is achieved by the fact that at facilities equipped with such a system there is no need to use terminal satellite terminals as subscriber devices, instead of them it is enough for subscribers to use mobile terminals that support existing cellular standards.

Claims (1)

A mobile communication method between mobile and stationary objects, including the transmission of information from objects located outside the coverage area of terrestrial cellular communication networks, characterized in that the communication nodes of the moving object with terrestrial networks and other moving objects are located at stationary objects and objects with established travel routes , objects move along a given trajectory and at any moment in time form a chain, the nodes of the chain are moving and stationary objects, each a chain assembly has its own coverage area (cell), the sequence of cells forms a coverage area, the control of switching nodes is performed from the central switching node.

Images