1. In a shelter structure comprising:
connecting joints, each having three arms orthogonal to each other, two of the arms being horizontal when a third is vertical,
hollow horizontal bars having ends which fit over the horizontal arms of said joints,
hollow vertical uprights having ends which fit over the vertical arms of said joints, and
rectangular panels forming a floor, walls and a ceiling of said shelter structure, the improvement wherein:
each of said arms has a rectangular cross-section,
each of said horizontal bars has an open profile having an external vertical wall and an internal vertical wall, the external vertical wall being extended to form an external vertical shoulder (20) and a horizontal internal flange (22) extending from the vertical shoulder for engaging one of the horizontal arms (12) of the joints (11), the internal vertical wall terminating at a horizontal shelf (21) for supporting the panels forming the floor or the ceiling, and wherein
each of the vertical uprights longitudinally has two vertical shoulders (23) extending therefrom which, when the upright is installed on the joint, are aligned with the vertical shoulders (20) of the horizontal bars (13) so as to define a rectangular support frame, and
the panels (16) forming the walls of the structure rest against an inner surface of said external vertical shoulders of the horizontal bars and the vertical shoulders of the vertical bars.
2. The shelter structure according to claim 1, wherein
each of said horizontal bars has,
an end portion of the external vertical wall bent once internally backwards to define said vertical shoulder and a second time horizontally inwards to form said internal flange, and
an end portion of the internal vertical wall is further bent horizontally outward to define said shelf.
3. The shelter structure according to claim 1, wherein
each of said vertical uprights has two vertical orthogonal walls, and
an end portion of each of said walls is further bent once internally backwards for defining said vertical support shoulder and a second time parallel to the other of said walls to form an at least partially closed cavity of said upright.
4. The shelter structure according to claim 1, wherein at least one horizontal arm of each joint has an end portion of reduced section, so as to define an axial abutment shoulder for the ends of said bars.
5. The shelter structure according to claim 1, wherein the bars and the uprights are secured to the joints by cross screws that connect the end portions of said bars and uprights to the respective arms of the joints.
6. The shelter structure according to claim 1, wherein each joint has, coaxially to the vertical arm, a threaded hole for receiving a screw for connecting the joint alternatively to a foot for supporting the structure on the ground or a ring for lifting and carrying the shelter.
7. The shelter structure according to claim 1, further comprising L-shaped vertical bars for connecting two adjacent vertical panels acting as walls to one another.
8. The shelter structure according to claim 1, further comprising at least one \u03a9-shaped horizontal bar resting on the shelves of two opposite horizontal bars for supporting two adjacent horizontal panels acting as floor.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A communications system for mobile radio telephony comprising mobile devices, comprising modules which can be inserted into the mobile devices, with at least one subscriber territory being fixed inside the total territory covered by the communications system, within which subscriber territory communication takes place from andor to the mobile devices under special conditions, and comprising means by which it can be determined whether the mobile device is located inside the subscriber territory,
characterized in that
the means are arranged on the module or in a determination unit which can be accessed by means of remote polling.
2. A communications system in accordance with claim 1, wherein the module is the subscriber identification module (SIM).
3. A communications system in accordance with claim 1, wherein location areas in which one or more radio cells are located are arranged in the total territory covered by the communications system.
4. A communications system in accordance with claim 3, wherein location areas andor the radio cells have identity data characterizing them.
5. A communications system in accordance with claim 4, wherein the identity data include identifiers and coordinates.
6. A communications system in accordance with claim 4, wherein means are provided in the communications system by means of which the identity data of the location areas andor of the radio cells can be transmitted to the mobile devices.
7. A communications system in accordance with claim 1, wherein an interface is provided in the mobile devices by means of which the identity data can be transmitted to the module.
8. A communications system in accordance with claim 1, wherein means are provided in the module andor in the determination unit of the communications system by means of which the identity data of the location area or radio cell in which the mobile device is located can be compared with data characterizing the subscriber territory.
9. A communications system in accordance with claim 8, wherein the data characterizing the subscriber territory include identifiers and coordinates of the locations areas andor radio cells located in the subscriber territory.
10. A communications system in accordance with claim 8, wherein the data characterizing the subscriber territory are stored in the module andor in the determination unit.
11. A communications system in accordance with claim 1, wherein the means by which it can be determined whether the mobile device is located inside the subscriber territory are designed such that it can be determined by them whether the coordinates of a location area or of a radio cell of the communications system are disposed in a region which is fixed by a location and the radius of a circle surrounding the location as a center.
12. A communications system in accordance with claim 11, wherein the coordinates of the location and the radius are stored in the module or in the determination unit.
13. A communications system in accordance with claim 11, wherein the identifiers of the location areas andor of the radio cells are designated such that they are in an unambiguous relationship with the coordinates of the location area andor of the radio cell so that the coordinates can be determined from the identifiers.
14. A communications system in accordance with claim 13, wherein means are provided in the module or in the determination unit by which the coordinates can be determined on the basis of the identifiers.
15. A communications system in accordance with claim 1, wherein the module andorthe determination unit has means by which it can be determined whether the identifier of a location area andor of a radio cell coincides with a predetermined identifier of the location area andor of the radio cell of the subscriber territory.
16. A communications system in accordance with claim 15, wherein the predetermined identifier is stored in the module or in the determination unit.
17. A communications system in accordance with claim 16, wherein the identifiers stored in the module or in the determination unit are at least partly stored in a form reducing the storage requirements.
18. A communications system in accordance with claim 1, wherein the determination unit has a transmitter and receiver unit, with the transmitter unit serving the reception of a poll of the association with a subscriber territory and the transmitter unit serving the transmission of the result of the examination whether the mobile device is located in a subscriber territory.
19. A communications system in accordance with claim 1, wherein an interface is provided between the mobile device and the module via which the information whether the mobile device is located in a subscriber territory can be transmitted from the module to the mobile device in the form of a control signal.
20. A method of operating a communications system for mobile radio telephony comprising mobile devices and comprising modules which can be inserted into the mobile devices, with at least one subscriber territory being fixed inside the total territory covered by the communications system inside which subscriber territory communication takes place from andor to the mobile devices under special conditions, and with a determination taking place whether the mobile device is located in the subscriber territory,
characterized in that
the determination takes place by means of the module or by means of a determination unit which is accessed by means of remote polling.
21. (canceled)
22. A method in accordance with claim 20, wherein the examination whether the coordinates of a location area andor of a radio cell are disposed in a region which is fixed by a location and the radius of a circle surrounding the location as a center takes place by means of the module andor of the determination unit.
23. A method in accordance with claim 1, wherein an examination whether the identifier of a location area or of a radio cell coincides with a predetermined identifier of a location area or of a radio cell takes place by means of the module andor of the determination unit.
24. A method in accordance with claim 22, wherein the examination in accordance with claim 23 takes place prior to the examination in accordance with claim 22.
25. A method in accordance with claim 20, wherein the location and the radius of the region in accordance with claim 22 andorthe predetermined identifiers in accordance with claim 23 are stored in the module andor in the determination unit.
26. A method in accordance with claim 25, wherein the predetermined identifiers are at least partly stored in a manner reducing the memory requirements in the module andor in the determination unit.
27. (canceled)
28. A method in accordance with claim 20, wherein the identifier of the location area andor of the radio cell andor their coordinates are forwarded by a transmitter and receiver station to the mobile device and from this to the module.
29. A method in accordance with claim 28, wherein the data forwarded from the mobile device to the module are transmitted from this to the determination unit; and in that the determination unit\u2014after an examination whether the mobile device is located in a subscriber territory\u2014forwards the result to the mobile device and the latter to the module.