Method and device for controlling cell connection from wireless LAN in wireless communication system and providing valid information on peripheral wireless LAN access points

• US 10,390,295 B2
• Filed: 12/11/2017
• Issued: 08/20/2019
• Est. Priority Date: 02/28/2013
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Jang, Jaehyuk, Kim, Sangbum, Kim, Soenghun, Kim, Wooseong, Jeong, Kyeongin
• Primary Examiner(s): Roberts, Brian S
• Application Number:
  US15/837,798
• Publication Number:
  US 20180115944A1
• Time in Patent Office: 617 Days
• Field of Search: None
• CPC Class Codes: H04W 48/02 Access restriction performed under specific conditions
• CPC Class Codes: H04W 48/06 based on traffic conditions
• CPC Class Codes: H04W 48/08 Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area 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: Y02D 30/70 in wireless communication networks

Abstract

The present invention provides a method for controlling access of a terminal if the terminal accesses from a wireless LAN network to a mobile communication network, when the mobile communication network (for example, UMTS, LTE and the like) and the wireless LAN network are linked in a wireless communication system. Furthermore, the present invention provides a method for transmitting information on connectable peripheral wireless LAN networks. Thus, the present invention can reduce a load of a network since the network can control the access of a terminal, and can reduce unnecessary power consumption and solve a connection delay problem by providing a valid wireless LAN network list to the terminal.

Claims

1. A method for connecting to a wireless local area network (WLAN) by a user equipment (UE) in a wireless communication system, the method comprising:

receiving, from a cellular base station connected with the UE, a first message including first information on a WLAN access point (AP) list;

attempting to connect to a first WLAN AP in the WLAN AP list based on the first information;

transmitting, to the cellular base station, a second message indicating a failure of a WLAN connection to the first WLAN AP;

receiving, from the cellular base station, a third message including second information on the WLAN AP list; and

attempting to connect to a second WLAN AP in the WLAN AP list based on the second information.

2. The method of claim 1, wherein the first or second WLAN AP is identified among a plurality of WLAN APs based on a basic service set identifier (BSSID).

3. A method for controlling a connection to a wireless local area network (WLAN) by a cellular base station in a wireless communication system, the method comprising:

transmitting, to a user equipment (UE) connected with the cellular base station, a first message including first information on a WLAN access point (AP) list;

receiving, from the UE, a second message indicating a failure of a WLAN connection to a first AP in the WLAN AP list based on the first information; and

transmitting, to the UE, a third message including second information on the WLAN AP list,

wherein the UE attempts to connect to a second WLAN AP in the WLAN AP list based on the second information.

4. A user equipment (UE) for connecting to a wireless local area network (WLAN) in a wireless communication system, the UE comprising:

a transceiver; and

a controller coupled with the transceiver and configured to control to;

receive, from a cellular base station connected with the UE, a first message including first information on a WLAN access point (AP) list,

attempt to connect to a first WLAN AP in the WLAN AP list based on the first information,

transmit, to the cellular base station, a second message indicating a failure of a WLAN connection to the first WLAN AP,

receive, from the cellular base station, a third message including second information on the WLAN AP list, and

attempt to connect to a second WLAN AP in the WLAN AP list based on the second information.

5. The UE of claim 4, wherein the first or second WLAN AP is identified among a plurality of WLAN APs based on a basic service set identifier (BSSID).

6. A cellular base station for controlling a connection to a wireless local area network (WLAN) in a wireless communication system, the cellular base station comprising:

a transceiver; and

a controller coupled with the transceiver and configured to control to;

transmit, to a user equipment (UE) connected with the cellular base station, a first message including first information on a WLAN access point (AP) list,

receive, from the UE, a second message indicating a failure of a WLAN connection to a first AP in the WLAN AP list based on the first information, and

transmit, to the UE, a third message including second information on the WLAN AP list,

wherein the UE attempts to connect to a second WLAN AP in the WLAN AP list based on the second information.