Abstract: A method for using a remote subscriber identification module (SIM) and an electronic device relates to the field of communications technologies, in which when switching a SIM, a user does not need to frequently open a card slot to fetch and change a card. The method includes after receiving an indication of a user to initiate a call or send a Short Message Service (SMS) message, a terminal that makes a call or sends an SMS message to a carrier network using a phone management module and an agent module in the terminal and using a SIM disposed at a server.

Abstract: A method for using a remote subscriber identification module (SIM) and an electronic device relates to the field of communications technologies, in which when switching a SIM, a user does not need to frequently open a card slot to fetch and change a card. The method includes after receiving an indication of a user to initiate a call or send a Short Message Service (SMS) message, a terminal that makes a call or sends an SMS message to a carrier network using a phone management module and an agent module in the terminal and using a SIM disposed at a server.

Abstract: The present invention provides a method for finding a backup node for a node in a sensor network. Firstly, determining a node which is in a state of waiting for being an agent node among a plurality of nodes adjacent to the node to be backed up for using the agent node to find the backup node. The states of waiting for being backed up is that the quantity of electricity of the node to be backed up drops below a preset value. According to the present invention, the node to be backed up does not need to communicate with a large number of nodes. It only needs to determine an agent node among the adjacent notes to do the substantial search for a backup node.

Abstract: The present invention provides a locating apparatus (100) for locating a user in a wireless network, coverage area of the wireless network including at least one functional area, comprising: a transmission source (101) for transmitting a radio signal; a first receiver (111) for receiving the radio signal; a second receiver (112) for receiving the radio signal; a first detector (121) for detecting a first signal variation state of the radio signal received by the first receiver; a second detector (122) for detecting a second signal variation state of the radio signal received by the second receiver; and a determiner (124) for determining whether the user is in one of the at least one functional areas according to the first signal variation state and the second signal variation state.

Abstract: The present invention provides a method for finding a backup node for a node in a sensor network. Firstly, determining a node which is in a state of waiting for being an agent node among a plurality of nodes adjacent to the node to be backed up for using the agent node to find the backup node. The states of waiting for being backed up is that the quantity of electricity of the node to be backed up drops below a preset value. According to the present invention, the node to be backed up does not need to communicate with a large number of nodes. It only needs to determine an agent node among the adjacent notes to do the substantial search for a backup node.

Abstract: The present invention relates to a method for carrying out a task of a sensor network, comprising the steps of detecting (S101) mobile means (300) temporarily entering a range covered by a sensor network, and assigning the task (S109) to the mobile means to use the mobile means to finish the task. The present invention can save energy consumption of the sensor network and enhance its processing capability. The present invention also relates to a sensor network (400), sensor node (200) and mobile means (300) using said method.