US 8,948,146 B2Granted

Femtocell, femtocell gateway and access rejection method thereof

AssigneeInstitute for Information Industry

InventorsChing Lun Lin, Jian-Chian Chiou, Li-Wei Huang, Yao-Hsin Chen, Chun-Hao Yeh, Shao-Wei Huang

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Abstract

A femtocell, a femtocell gateway and an access rejection method thereof are provided. A wireless network system comprises a wireless device, a plurality of the femtocells, the femtocell gateway and a core network server. The wireless device has a Subscriber Identification and the core network server stores a Closed Subscribers Group Identification of the femtocells. The femtocell gateway receives an access rejection message corresponding to the Subscriber Identification of the wireless device from the core network server, and transmits the access rejection message to the femtocells. Each femtocell records the Subscriber Identification in a rejection list thereof, and it is capable of adding/deleting Subscriber Identifications in its rejection list. When each femtocell receives the Subscriber Identification of the wireless device again and determines that the Subscriber Identification has been recorded in the rejection list thereof, each femtocell immediately terminates a wireless connection from the wireless device.

Claims10

Dependent claims

A femtocell, a wireless network system comprising a wireless device, a femtocell gateway, a core network server and the femtocell, the wireless device having a subscriber identification code, the core network server storing a closed subscribers group identification code of the femtocell, the femtocell comprising:

a wireless network interface, being configured to build a first wireless connection with the wireless device, and to receive the subscriber identification code from the wireless device via the first wireless connection;
a wired network interface, being configured to build a wired connection with the femtocell gateway, to transmit the subscriber identification code to the femtocell gateway via the wired connection, to receive a subscriber identification validation message from the femtocell gateway via the wired connection, and to receive a subscriber access rejection message coming from the core network server from the femtocell gateway via the wired connection;
a storage, being configured to store a rejection list;
and
a processor, being electrically connected to the wireless network interface, the wired network interface and the storage, and configured to record the subscriber identification code, the number of rejections, and a time stamp of the subscriber identification code in the rejection list of the storage according to the subscriber access rejection message, instruct the wireless network interface to terminate the first wireless connection, and calculate a rejection duration of the subscriber identification code according to the number of rejections and the time stamp.

2 more elements

An access rejection method for use in a femtocell, a wireless network system comprising a wireless device having a subscriber identification code, the femtocell, a femtocell gateway and a core network server storing a closed subscribers group identification code of the femtocell, the femtocell comprising a wireless network interface, a wired network interface, a storage and a processor electrically connected to the wireless network interface, the wired network interface, and the storage, the access rejection method comprising the steps of:

(a) enabling the wireless network interface to build a first wireless connection with the wireless device;
(b) enabling the wireless network interface to receive the subscriber identification code from the wireless device via the first wireless connection;
(c) enabling the wired network interface to build a wired connection with the femtocell gateway;
(d) enabling the wired network interface to transmit the subscriber identification code to the femtocell gateway via the wired connection;
(e) enabling the wired network interface to receive a subscriber identification validation message from the femtocell gateway via the wired connection;
(f) enabling the wired network interface to receive a subscriber access rejection message coming from the core network server from the femtocell gateway via the wired connection;
(g) enabling the storage to store a rejection list;
and
(h) enabling the processor to record the subscriber identification code, the number of rejections, and a time stamp of the subscriber identification code in the rejection list of the storage according to the subscriber access rejection message;
(i) enabling the processor to instruct the wireless network interface to terminate the first wireless connection;
and
(j) enabling the processor to calculate a rejection duration of the subscriber identification code according to the number of rejections and the time stamp.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/195,260Filed 1 Aug 2011
Priority: TW 100118583 A27 May 2011
Published: US 2012/0300757 A129 Nov 2012
Granted: 3 Feb 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

H04W 48/02
Access restriction ; Network selection; Access point selection: access restriction performed under specific conditions
H04W 12/08
Security arrangements; Authentication; Protecting privacy or anonymity: access security
H04W 8/186
Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data:…
H04W 84/045
Public Land Mobile systems, e.g. cellular systems: using private Base Stations, e.g. femto Base Stations, home Node B