Procedure for registering a new subscriber in a radio system of an alarm system

• US 20050003815A1
• Filed: 04/15/2004
• Published: 01/06/2005
• Est. Priority Date: 04/17/2003
• Status: Active Grant

• Current Assignee: Ollnova Technologies Limited (Atlantic IP Services Limited)
• Original Assignee: Siemens AG
• Inventors: Schropp, Werner, Schreyer, Karlheinz
• Granted Patent: US 7,363,036 B2
• Time in Patent Office: Days
• US Class Current: 455/435.100
• CPC Class Codes: G08B 25/003 Address allocation methods and details
• CPC Class Codes: H04W 60/00 Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

On registration of a new subscriber in a radio system with a central system and a plurality of subscribers the new subscriber first sends a search telegram to all the subscribers that it can reach in its radio range and selects form the subscribers that respond a first router. Via this router it sends a registration request in the form of a message with a provisional own address to the central system. If it accepts the registration request the central system sends a response telegram via the router which contains a subscriber number and a system identifier for the new subscriber, which is integrated when the subscriber number is accepted into the radio system.

Claims

1. A method for registering a new subscriber in a radio system having a central system and a plurality of subscribers, said central system and said subscribers comprise a transmission and a receiving device, said subscribers can establish direct radio contact with the central system or indirect contact via one or more other subscribers as routers, said method for registering comprising the following steps:

a new subscriber sends a search signal to all subscribers that can be reached and selects a first router from subscribers that respond;

the new subscriber sends a registration request to the first router in the form of a message, said message contains a provisional address and an identifier of the central system assigned to the first router;

after the registration request from the first router has been forwarded to the central system, the central system decides whether to accept or reject the registration request, and

if accepted, the central system sends a response via the first router which contains a subscriber number and a system identifier which is accepted and stored by the new subscriber.

2. A method in accordance with claim 1, wherein if the registration request is rejected by the central system, the new subscriber selects another first router of another radio cell and sends a registration request via this router to its central system.

3. A method in accordance with claim 1, wherein after the new subscriber sends the search signal and the subscribers located within range respond by sending their address and an identifier of their system to the new subscriber, the new subscriber stores the addresses and the associated system identifications in a list of potential routers, for which it defines the order in accordance with a prespecified evaluation algorithm, and the new subscriber selects its first router from the list in accordance with its order and if its registration request is rejected by the system of the first router, selects a further router in each case in accordance with the prespecified order of the list for sending the registration request again.

4. A method in accordance with claim 3, wherein the new subscriber defines the order of potential routers on its list in accordance with the strength of the response signal.

5. A method in accordance with claim 3, wherein the new subscriber first checks whether a central system is responding to its search telegram and that in this case it puts the central system at the top of its list.

6. A method in accordance with claim 3, wherein the new subscriber defines for the order of its list of potential routers how many hierarchy stages away each responding system is from its central system.

7. A method in accordance with claim 3, wherein the new subscriber evaluates the system identifiers of the responding subscribers for the order of its list.

8. A method in accordance with claim 1, wherein the new subscriber, after a successful registration, sends out a second search signal to all subscribers located within its radio range and subsequently informs the central system about all subscribers that can be reached in its radio range of radio system.

9. A method in accordance with claim 8, wherein the new subscriber notifies the central system about the field strength with which it is receiving the signals from the subscribers that it can reach, and the central system creates from this data an optimum system configuration for transmission of messages via routers and notifies the subscribers of the radio system of this configuration.

10. A method in accordance with claim 1, wherein the telegrams of the new subscriber in each case with their provisional address, are forwarded in precisely the same way as the telegrams with a unique address, in which case on the way to the central system the routers of the subscribers through which the messages pass are marked so that the response from the central system to the registering subscriber travels back on the same path.

11. A method in accordance with claim 10, wherein the subscribers through which the messages pass are marked by collecting their relevant addresses in the forwarded telegram.

12. A method in accordance with claim 10, wherein the subscribers through which the messages pass are marked by an identifier which allows routing with distributed lists.