GSM signalling for M2M communications
First Claim
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1. A method of operating intermittently a remote apparatus comprising a data system for capturing data, displaying data and/or actuating based on data, a wireless modem for communication with a mobile telecommunications network and a controller, the remote apparatus being able to communicate with a server through the mobile telecommunications network, the method comprising:
- (a) leaving the wireless modem switched off; and
when data has been captured by the data system and is ready to send to the server and/or at intervals carrying out steps (b) to (d);
(b) automatically, in the controller, switching on the wireless modem;
(c) sending a signal from the remote apparatus to the server via the wireless modem and the mobile telecommunications network using a signaling channel message, wherein the signaling channel message is an unstructured supplementary services data, USSD, message including the data that is ready to send if the amount of data that is ready to send is less than the capacity of the signaling channel message; and
(d) automatically in the controller switching off the wireless modem to release network resources and conserve power.
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Accused Products
Abstract
A remote machine (10) communicates with a server (24). A mobile telecommunications module (14) is used to send a unstructured supplementary services data (USSD) message from the remote machine, and the remote machine then switches off. By polling the server (24), using USSD, the mobile telecommunications module (14) can be kept normally off, saving power.
16 Citations
14 Claims
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1. A method of operating intermittently a remote apparatus comprising a data system for capturing data, displaying data and/or actuating based on data, a wireless modem for communication with a mobile telecommunications network and a controller, the remote apparatus being able to communicate with a server through the mobile telecommunications network, the method comprising:
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(a) leaving the wireless modem switched off; and
when data has been captured by the data system and is ready to send to the server and/or at intervals carrying out steps (b) to (d);(b) automatically, in the controller, switching on the wireless modem; (c) sending a signal from the remote apparatus to the server via the wireless modem and the mobile telecommunications network using a signaling channel message, wherein the signaling channel message is an unstructured supplementary services data, USSD, message including the data that is ready to send if the amount of data that is ready to send is less than the capacity of the signaling channel message; and (d) automatically in the controller switching off the wireless modem to release network resources and conserve power. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A remote apparatus, for intermittently communicating with a server, the remote apparatus comprising:
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a data system for capturing data, displaying data and/or actuating based on data; a wireless modem for communication with a mobile telecommunications network that can be independently switched on and off; and a controller, arranged to control the wireless modem; wherein the controller is arranged to control the wireless modem to be normally switched off, the controller being arranged, when data has been captured by the data capture system and is ready to send to the server and/or at intervals; to control the remote apparatus to automatically switch on the wireless modem; to send a signal from the remote apparatus to the server via the wireless modem and the mobile telecommunications network using a signaling channel message, wherein the signaling channel message is an unstructured supplementary services data, USSD, message including the data that is ready to send if the amount of data that is ready to send is less than the capacity of the signaling channel message; and to automatically switch off the wireless modem to release network resources and conserve power. - View Dependent Claims (9, 10, 11)
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12. A network comprising a remote apparatus, for intermittently communicating with a server, the remote apparatus comprising:
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a data system for capturing data, displaying data and/or actuating based on data; a wireless modem that can be independently switched on and off; and a controller, arranged to control the wireless modem; wherein the controller is arranged to control the wireless modem to be normally switched off, the controller being arranged, when data has been captured by the data capture system and is ready to send to the server and/or at intervals; to control the remote apparatus to automatically switch on the wireless modem; to send a signal from the remote apparatus to the server via the wireless modem and the mobile telecommunications network using a signaling channel message, wherein the signaling channel message is an unstructured supplementary services data, USSD, message including the data that is ready to send if the amount of data that is ready to send is less than the capacity of the signaling channel message; and to automatically switch off the wireless modem to release network resources and conserve power; and a server, wherein the server is arranged to store data for the remote apparatus; and on receipt of a signal from the remote apparatus through the signaling channel, the server is arranged to send a message back to the remote apparatus indicating whether the server has data to send to the remote apparatus, and if the message indicates that the server has data to send to the remote apparatus, to send the data to the remote apparatus. - View Dependent Claims (13)
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14. A method of intermittently operating a remote apparatus for communication with a server through a mobile telecommunications network, the method comprising:
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(a) leaving a wireless modem at the remote apparatus switched off; and
when data has been captured by the remote apparatus and is ready to send to the server carrying out steps (b) to (e);(b) automatically, in a controller at the remote apparatus, switching on the wireless modem; (c) sending a signal from the remote apparatus to the server via the wireless modem and the mobile telecommunications network using a signaling channel message, wherein the signaling channel message is an unstructured supplementary services data, USSD, message including the data that is ready to send if the amount of data that is ready to send is less than the capacity of the signaling channel message; (d) sending a signal from the remote apparatus to the server via the wireless modem and the mobile telecommunications network using a conventional data link, including the data that is ready to send if the amount of data that is ready to send is greater than the capacity of the signaling channel message, and (e) automatically in the controller switching off the wireless modem to release network resources and conserve power.
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Specification