APPARATUS AND METHOD FOR REGISTERING TEMPORARY SUBSCRIBER OF SMALL BASE STATION IN WIRELESS COMMUNICATION SYSTEM

• US 20110189993A1
• Filed: 01/28/2011
• Published: 08/04/2011
• Est. Priority Date: 02/03/2010
• Status: Active Grant

• Current Assignee: Pantech Corporation (Ideahub, Inc.)
• Original Assignee: Pantech Corporation (Ideahub, Inc.)
• Inventors: LEE, Ju Hyun
• Granted Patent: US 8,472,953 B2
• Time in Patent Office: Days
• US Class Current: 455/435.1
• 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 60/04 using triggered events
• CPC Class Codes: H04W 60/06 De-registration or detaching
• CPC Class Codes: H04W 8/06 Registration at serving network Location Register, VLR or user mobility server
• CPC Class Codes: H04W 84/045 using private Base Stations, e.g. femto Base Stations, home Node B

Abstract

A mobile terminal transmits a temporary subscriber request message requesting a temporary subscriber registration to a subscriber management server of a core network via a macro base station if camping on a small base station fails, a subscriber management server receives the temporary subscriber request message and transmits the temporary subscriber request message to the small base station if the mobile terminal is registrable as a temporary subscriber of the small base station, and a small base station receives the temporary subscriber request message and determines whether to accept or reject the temporary subscriber registration of the mobile terminal, and transmits, to the subscriber management server or to the mobile terminal, a temporary subscriber response message indicating that the mobile terminal is permitted to be registered as a temporary subscriber if the temporary subscriber registration is accepted.

Claims

1. A method for registering a mobile terminal as a temporary subscriber of a small base station by a mobile terminal, the method comprising:

generating a temporary subscriber request message requesting a temporary subscriber registration if camping on the small base station fails; and

transmitting the temporary subscriber request message to a subscriber management server of a core network via a macro base station.

2. The method of claim 1, further comprising:

receiving a temporary subscriber response message indicating that the temporary subscriber registration is accepted; and

camping on the small base station as a temporary subscriber.

3. The method of claim 2, wherein the receiving comprises receiving the temporary subscriber response message from the subscriber management server or the small base station.

4. The method of claim 1, further comprising:

determining the temporary subscriber registration as having failed after transmitting the temporary subscriber request message to the subscriber management server if not receiving a temporary subscriber response message or if receiving a temporary subscriber reject message indicating that the temporary subscriber registration is rejected.

5. The method of claim 4, wherein the temporary subscriber reject message is received from the small base station via the core network.

6. A method for registering a mobile terminal as a temporary subscriber of a small base station by a subscriber management server, the method comprising:

receiving a temporary subscriber request message requesting a temporary subscriber registration;

determining whether a mobile terminal that transmitted the temporary subscriber request message is registrable as a temporary subscriber of the small base station included in the temporary subscriber request message; and

transmitting the temporary subscriber request message to the small base station if the mobile terminal is registrable as a temporary subscriber of the small base station.

7. The method of claim 6, further comprising:

registering the mobile terminal as a temporary subscriber of the small base station if receiving, from the small base station, a temporary subscriber response message indicating the temporary subscriber registration is accepted.

8. The method of claim 7, further comprising:

transmitting the temporary subscriber response message to the mobile terminal if the mobile terminal is registered as a temporary subscriber of the small base station.

9. The method of claim 6, further comprising:

transmitting, to the mobile terminal, a temporary subscriber reject message indicating that the temporary subscriber registration is rejected, if the mobile terminal is not registrable as a temporary subscriber of the small base station, or if receiving the temporary subscriber reject message from the small base station.

10. A method for registering a mobile terminal as a temporary subscriber of a small base station by the small base station, the method comprising:

receiving, from a subscriber management server of a core network, a temporary subscriber request message requesting a temporary subscriber registration;

determining whether to accept or reject the temporary subscriber registration of the mobile terminal included in the temporary subscriber request message; and

transmitting, to the subscriber management server or to the mobile terminal, a temporary subscriber response message indicating that the mobile terminal is permitted to be registered as a temporary subscriber, if the temporary subscriber registration is accepted.

11. The method of claim 10, wherein the determination of acceptance or rejection of the temporary subscriber registration is based on a preset registration standard, or is based on a determination by an operator of the small base station of whether to accept or reject the temporary subscriber registration.

12. The method of claim 10, further comprising:

transmitting the temporary subscriber response message, and allocating a temporary subscriber identity information, which is assigned to the mobile terminal, to a physical downlink shared channel (PDSCH), and transmitting the temporary subscriber identity information.

13. The method of claim 10, further comprising:

transmitting, to the subscriber management server, a temporary subscriber reject message indicating that the mobile terminal is not permitted to be registered as a temporary subscriber, if the temporary subscriber registration of the mobile terminal is rejected.

14. An apparatus to register a mobile terminal as a temporary subscriber of a small base station in the mobile terminal, the apparatus comprising:

a message processing unit to generate a temporary subscriber request message requesting a temporary subscriber registration; and

a temporary subscriber processing unit to transmit the temporary subscriber request message to a subscriber management server of a core network via a macro base station if camping on the small base station fails.

15. The apparatus of claim 14, wherein the message processing unit receives and reads a temporary subscriber response message, and the temporary subscriber processing unit controls the mobile terminal to camp on the small base station if the temporary subscriber response message indicates that the temporary subscriber registration is accepted.

16. The apparatus of claim 15, wherein the message processing unit receives the temporary subscriber response message from the subscriber management server or the small base station.

17. The apparatus of claim 14, wherein the temporary subscriber processing unit determines the temporary subscriber registration as having failed after transmitting the temporary subscriber request message to the subscriber management server, if a temporary subscriber response message is not received or a temporary subscriber reject message indicating that the temporary subscriber registration is rejected is received.

18. An apparatus to register a mobile terminal as a temporary subscriber of a small base station in a subscriber management server, the apparatus comprising:

a message processing unit to receive, from the mobile terminal, a temporary subscriber request message requesting a temporary subscriber registration, and to read the temporary subscriber request message; and

a temporary subscriber managing unit to determine whether the mobile terminal is registrable as a temporary subscriber of the small base station included in the temporary subscriber request message, and to transmit the temporary subscriber request message to the small base station if the mobile terminal is registrable as a temporary subscriber of the small base station.

19. The apparatus of claim 18, wherein the message processing unit receives, from the small base station, a temporary subscriber response message indicating that the temporary subscriber registration is accepted, and the temporary subscriber managing unit registers the mobile terminal as a temporary subscriber of the small base station if the temporary subscriber response message is received.

20. The apparatus of claim 19, wherein the temporary subscriber managing unit transmits the temporary subscriber response message to the mobile terminal if the mobile terminal is registered as a temporary subscriber of the small base station.

21. The apparatus of claim 18, wherein the message processing unit receives, from the small base station, a temporary subscriber reject message indicating that the temporary subscriber registration is rejected, and the temporary subscriber managing unit transmits the temporary subscriber reject message to the mobile terminal if the mobile terminal is not registrable as a temporary subscriber of the small base station or if the temporary subscriber reject message is received.

22. An apparatus to register a mobile terminal as a temporary subscriber of a small base station in the small base station, the apparatus comprising:

a message processing unit to receive, from a subscriber management server of a core network, a temporary subscriber request message requesting a temporary subscriber registration, s and to generate a temporary subscriber response message indicating that the mobile terminal is permitted to be registered as a temporary subscriber if the temporary subscriber registration is accepted; and

a registration determination unit to determine whether to accept or reject the temporary subscriber registration of the mobile terminal included in the temporary subscriber request message, and to transmit the temporary subscriber response message to the subscriber management server or to the mobile terminal if the temporary subscriber registration of the mobile terminal is accepted.

23. The apparatus of claim 22, wherein the registration determination unit determines acceptance or rejection of the temporary subscriber registration based on a preset registration standard, or based on a determination by an operator of the small base station on whether to accept or reject the temporary subscriber registration.

24. The apparatus of claim 22, wherein the registration determination unit allocates a temporary subscriber identity information, which is assigned to the mobile terminal, to a physical downlink shared channel (PDSCH) if the temporary subscriber registration of the mobile terminal is accepted.

25. The apparatus of claim 22, wherein the message processing unit generates a temporary subscriber reject message indicating that the temporary subscriber registration is rejected, and the registration determination unit transmits the temporary subscriber reject message to the subscriber management server if the temporary subscriber registration of the mobile terminal is rejected.

26. A wireless communication system to register a mobile terminal as a temporary subscriber of a small base station, the system comprising:

a mobile terminal to transmit a temporary subscriber request to a subscriber management server of a core network via a macro base station if camping on a small base station fails, the temporary subscriber request message requesting a temporary subscriber registration to the small base station;

a subscriber management server to receive the temporary subscriber request message and to transmit the temporary subscriber request message to the small base station if the mobile terminal is registrable as a temporary subscriber of the small base station; and

a small base station to receive the temporary subscriber request message and to determine whether to accept or reject the temporary subscriber registration of the mobile terminal, and to transmit, to the subscriber management server or to the mobile terminal, a temporary subscriber response message indicating that the mobile terminal is permitted to be registered as a temporary subscriber if the temporary subscriber registration is accepted.

27. The system of claim 26, wherein the small base station transmits, to the mobile terminal via the subscriber management server, a temporary subscriber reject message indicating that the mobile terminal is not permitted to be registered as a temporary subscriber if the temporary subscriber registration is rejected,

wherein the subscriber management server transmits the temporary subscriber reject message to the mobile terminal if the mobile terminal is not registrable as a temporary subscriber or if the subscriber management server receives the temporary subscriber reject message, and

wherein the mobile terminal determines the temporary subscriber registration as having failed after transmitting the temporary subscriber request message if the mobile terminal does not receive the temporary subscriber response message or receives the temporary subscriber reject message.

28. The system of claim 27, wherein the temporary subscriber request message, the temporary subscriber response message, and the temporary subscriber reject message include information about the small base station and information about the mobile terminal.

29. The system of claim 28, wherein the temporary subscriber request message, the temporary subscriber response message, and the temporary subscriber reject message further include at least one of a temporary subscriber identity information to be registered and information about the core network.

30. The system of claim 28, wherein the temporary subscriber reject message further includes rejection information indicating a reason for rejection.