Mobile device and base station for a communication protocol with normal login and temporary login

• US 7,979,069 B2
• Filed: 08/17/2007
• Issued: 07/12/2011
• Est. Priority Date: 03/02/2005
• Status: Expired due to Fees

• Current Assignee: Fraunhofer Gesellschaft Zur Foerderung Der Angewandten Forsching E.V.
• Original Assignee: Fraunhofer Gesellschaft Zur Foerderung Der Angewandten Forsching E.V.
• Inventors: Tittel, Martin, Mack, Doris, Sturm, Roland, Hupp, Jürgen
• Primary Examiner(s): Hu; Jinsong
• Assistant Examiner(s): Hong; Dung
• Application Number:
  US11/840,270
• Publication Number:
  US 20080020764A1
• Time in Patent Office: 1,425 Days
• Field of Search: 455/433, 455/434, 455/435.1, 455/411
• US Class Current: 455/435.1
• CPC Class Codes: H04M 1/725 Cordless telephones user interfaces specially adapted therefor H04M1/724
• 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 80/00 Wireless network protocols or protocol adaptations to wireless operation
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• 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
• CPC Class Codes: H04W 88/10 adapted for operation in multiple networks, e.g. multi-mode access points

Abstract

A mobile device communicates with a base station according to a communication protocol, the communication protocol having a first message for signaling a readiness of the base station for a normal login operation of the mobile device with the base station and a second message for signaling a readiness of the base station for an ad-hoc login operation of the mobile device with the base station, so that the ad-hoc login information of the ad-hoc login operation can be distinguished from the normal login information of the normal login operation. To this end, the mobile device has a receiver, an interpreter and a processor, which is formed so as to perform the ad-hoc login operation when the readiness of the base station for an ad-hoc login operation is signaled.

Claims

1. A mobile device for communicating with a base station according to a communication protocol, the communication protocol comprising a first message for signaling a readiness of the base station for a normal login operation of the mobile device with the base station and a second message for signaling a readiness of the base station for a temporary login operation of the mobile device with the base station, comprising:

a receiver, which is formed so as to receive a message of the communication protocol from a base station;

an interpreter for interpreting the message based on the communication protocol, the interpreter being formed so as to differentiate the signaling of the readiness of the base station for the normal login operation from the signaling of the readiness of the base station for the temporary login operation;

a processor, which is formed so as to perform the temporary login operation with the base station when the readiness of the base station for the temporary login operation is signaled;

a first memory for storing a system configuration including normal login information for the normal login operation and a second memory separate from the first memory for storing temporary login information for the temporary login operation; and

a terminator for terminating the temporary login operation of the mobile device, the terminator being formed so as to terminate the temporary login by a command, by a time limit or by switching off the mobile device and to delete the temporary login information in the second memory;

wherein

the interpreter is formed so as to search, in a message received, for an escape code defined by the communication protocol, the escape code indicating an application not defined by the communication protocol; and

the interpreter is formed so as to interpret the message so that a following region of the data stream is evaluated when the escape code is recognized, and, in the event of a default occupancy of the following region, to activate the processor so that it starts the temporary login operation, or to already activate the processor to start the temporary login operation when the message comprises the escape code.

2. The mobile device according to claim 1, wherein the second memory for the temporary login operation is a volatile memory and the first memory is a non-volatile memory.

3. The mobile device according to claim 1, wherein the processor is formed so as to perform, in the temporary login operation, the same communication with the base station as in the normal login operation.

4. The mobile device according to claim 1, further comprising a placer for placing the mobile device into readiness for the temporary login operation, the interpreter or the processor being formed so as to be active for the temporary login operation only when the placer signals the readiness for the temporary login operation.

5. The mobile device according to claim 4, wherein the placer is formed so as to place the mobile device, periodically or depending on an external event, into readiness for the temporary login operation.

6. The mobile device according to claim 1, wherein the processor is formed so as to perform the normal login operation with the base station when the readiness of the base station for the normal login operation is signaled, the normal login operation involving agreement of a user authentication key comprising the normal login information with the base station, wherein the first memory is a non-volatile memory and the processor is configured to perform subsequent connection establishments by authentication with the base station using the user authentication key.

7. The mobile device according to claim 6, wherein the processor is formed so as communicate an access rights request message to the base station in response to the interpreter interpreting the message of the communication protocol from the base station signaling the readiness of the base station for the temporary login operation, the access rights request message containing an identity of the mobile device as well as an authentication type information;

waiting for an access rights accept message sent from the base station upon communication of the access rights request message, the access rights accept message comprising the identity of the mobile device, an identity of the base station and the authentication type information;

performing an allocation process along with the base station to obtain the user authentication key agreed upon between the mobile device and the base station;

wherein

the normal login information comprises the identity of the base station, the authentication type information and the user authentication key.

8. The mobile device according to claim 7, wherein the second memory for the temporary login operation is a volatile memory.

9. The mobile device according to claim 8, wherein the processor is formed so as to perform, in the temporary login operation, the same communication with the base station as in the normal login operation.

10. The mobile device according to claim 6, wherein the second memory for the temporary login operation is a volatile memory.

11. The mobile device according to claim 1, wherein the transmitter is formed so as to broadcast the message of the communication protocol, and the processor is formed so as to perform, when the base station is ready for the normal login operation and receives a request for the normal login operation from another mobile device, the normal login operation with the another mobile device, the normal login operation involving agreement of a user authentication key comprised by the normal login information with the another mobile device, wherein the first memory is a non-volatile memory and the processor is configured to perform subsequent connection establishments by authentication with the other mobile device using the user authentication key.

12. A base station for communicating with a mobile device according to a communication protocol, the communication protocol comprising a first message for signaling a readiness of the base station for a normal login operation of the mobile device with the base station and a second message for signaling a readiness of the base station for a temporary login operation of the mobile device with the base station, comprising:

a transmitter, which is formed so as to send a message of the communication protocol to a mobile device;

a generator for generating the message based on the communication protocol, the generator being formed so as to generate, as a message, the first message or the second message, the first message and the second message being different from each other;

a processor, which is formed so as to perform, when the base station is ready for the temporary login operation and receives a request for the temporary login operation from the mobile device, the temporary login operation with the mobile device;

a first memory for storing a system configuration including normal login information for the normal login operation and a second memory separate from the first memory for storing temporary login information for the temporary login operation; and

a terminator for terminating the temporary login operation of the mobile device, the terminator being formed so as to delete the temporary login information in the second memory by a command, due to a default external event, by a time limit or by switching off the base station;

wherein

the generator is formed so as to use, for the second message, an escape code defined by the communication protocol, the escape code indicating an application not defined by the communication protocol, and to generate the second message so that a region following the escape code comprises a default unique occupancy.

13. The base station according to claim 12, wherein the second memory for the temporary login operation is a volatile memory and the first memory is a non-volatile memory.

14. The base station according to claim 12, wherein the processor is formed so as to perform, in the temporary login operation, the same communication with the mobile device as in the normal login operation.

15. The base station according to claim 12, further comprising a placer for placing the base station into readiness for the temporary login operation, the generator being formed so as to generate the second message only when it is activated for by the placer, and the processor further starting the temporary login operation only when it is activated to this end by the placer.

16. The base station according to claim 15, wherein the placer is formed so as to place the base station, periodically or depending on a default external event, into readiness for the temporary login operation.

17. The base station according to claim 12, wherein the processor is formed so as to perform, when the base station is ready for the normal login operation and receives a request for the normal login operation from the mobile device, the normal login operation with the mobile device, the normal login operation involving agreement of a user authentication key comprising the normal login information with the mobile device, wherein the first memory is a non-volatile memory and the processor is configured to perform subsequent connection establishments by authentication with the mobile device using the user authentication key.

18. A method for operating a mobile device for communicating with a base station according to a communication protocol, the communication protocol comprising a first message for signaling a readiness of the base station for a normal login operation of the mobile device with the base station and a second message for signaling a readiness of the base station for a temporary login operation of the mobile device with the base station, in order to achieve a login with the base station, comprising the steps of:

receiving a message of the communication protocol;

interpreting a message based on the communication protocol, in order to differentiate the signaling of the readiness of the base station for the normal login operation from the signaling of the readiness of the base station for the temporary login operation;

performing the temporary login operation when the readiness of the base station for the temporary login operation is signaled;

storing temporary login information for the temporary login operation in a second memory separate from the first memory, the first memory storing a system configuration including normal login information for the normal login operation; and

terminating the temporary login operation with the base station, terminating being implemented so as to delete the temporary login information in the second memory by a command, by a time limit or by switching off the mobile device;

wherein

the step of interpreting the message comprises;

searching, in a message received, for an escape code defined by the communication protocol, the escape code indicating an application not defined by the communication protocol; and

interpreting the message so that a following region of a data stream is evaluated when the escape code is recognized, and, in the event of a default occupancy of the following region, activating a start of the step of performing the temporary login operation, or already activating the start of the step of performing the temporary login operation when the message comprises the escape code.

19. A method for operating a base station for communication with a mobile device according to a communication protocol, the communication protocol comprising a first message for signaling a readiness of the base station for a normal login operation of the mobile device with the base station and a second message for signaling a readiness of the base station for a temporary login operation of the mobile device with the base station, in order to achieve a login with the base station, comprising the steps of:

generating either the first or the second message, the first and the second message being different from each other;

sending the message;

performing the temporary login operation when the base station is ready for the temporary login operation and receives a request for the temporary login operation from the mobile device;

storing temporary login information for the temporary login operation in a second memory separate from the first memory, the first memory storing a system configuration including normal login information for the normal login operation; and

terminating the temporary login with the base station, terminating being implemented so as to delete the temporary login information in the second memory by a command, due to a default external event, by a time limit or by switching off the base station;

wherein

the step of generating uses, for the second message, an escape code defined by the communication protocol, the escape code indicating an application not defined by the communication protocol, so that a region following the escape code comprises a default unique occupancy.

20. A non-transitory computer readable medium having stored thereon a computer program with a program code for performing, when the computer program is executed on a computer, a method for operating a mobile device for communicating with a base station according to a communication protocol, the communication protocol comprising a first message for signaling a readiness of the base station for a normal login operation of the mobile device with the base station and a second message for signaling a readiness of the base station for a temporary login operation of the mobile device with the base station, in order to achieve a login with the base station, the method comprising the steps of:

receiving a message of the communication protocol;

interpreting a message based on the communication protocol, in order to differentiate the signaling of the readiness of the base station for the normal login operation from the signaling of the readiness of the base station for the temporary login operation;

performing the temporary login operation when the readiness of the base station for the temporary login operation is signaled;

storing temporary login information for the temporary login operation in a second memory separate from the first memory, the first memory storing a system configuration including normal login information for the normal login operation; and

terminating the temporary login operation with the base station, terminating being implemented so as to delete the temporary login information in the second memory by a command, by a time limit or by switching off the mobile device;

wherein

the step of interpreting the message comprises;

searching, in a message received, for an escape code defined by the communication protocol, the escape code indicating an application not defined by the communication protocol; and

interpreting the message so that a following region of a data stream is evaluated when the escape code is recognized, and, in the event of a default occupancy of the following region, activating a start of the step of performing the temporary login operation, or already activating the start of the step of performing the temporary login operation when the message comprises the escape code.

21. A non-transitory computer readable medium having stored thereon a computer program with a program code for performing, when the computer program is executed on a computer, a method for operating a base station for communication with a mobile device according to a communication protocol, the communication protocol comprising a first message for signaling a readiness of the base station for a normal login operation of the mobile device with the base station and a second message for signaling a readiness of the base station for a temporary login operation of the mobile device with the base station, in order to achieve a login with the base station, the method comprising the steps of:

generating either the first or the second message, the first and the second message being different from each other;

sending the message;

performing the temporary login operation when the base station is ready for the temporary login operation and receives a request for the temporary login operation from the mobile device;

storing temporary login information for the temporary login operation in a second memory separate from the first memory, the first memory storing a system configuration including normal login information for the normal login operation; and

terminating the temporary login operation with the base station, terminating being implemented so as to delete the temporary login information in the second memory by a command, due to a default external event, by a time limit or by switching off the base station;

wherein

the step of generating uses, for the second message, an escape code defined by the communication protocol, the escape code indicating an application not defined by the communication protocol, so that a region following the escape code comprises a default unique occupancy.