Terminal and Method for Accessing Wireless Connection

• US 20080304440A1
• Filed: 11/16/2005
• Published: 12/11/2008
• Est. Priority Date: 12/14/2004
• Status: Abandoned Application

• Current Assignee: Electronics and Telecommunications Research Institute, Hanaro Telecom., Inc., KT Corporation, Samsung Electronics Co. Ltd., SK Telecom Co., Ltd.
• Original Assignee: Electronics and Telecommunications Research Institute, Hanaro Telecom., Inc., KT Corporation, KT Freetel Co., Ltd. (KT Corporation), Samsung Electronics Co. Ltd., SK Telecom Co., Ltd.
• Inventors: Park, Nam-Hoon, Jun, Sun-Mi
• Application Number:
  US11/721,436
• Publication Number:
  US 20080304440A1
• Time in Patent Office: Days
• US Class Current: 370/328
• CPC Class Codes: H04L 69/16 Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
• CPC Class Codes: H04L 69/163 In-band adaptation of TCP data exchange; In-band control procedures
• CPC Class Codes: H04L 69/32 Architecture of open systems interconnection [OSI] 7-layer type protocol stacks, e.g. the interfaces between the data link level and the physical level
• CPC Class Codes: H04L 69/324 in the data link layer [OSI layer 2], e.g. HDLC
• CPC Class Codes: H04L 69/326 in the transport layer [OSI layer 4] H04L69/16 takes precedence
• CPC Class Codes: H04W 76/15 Setup of multiple wireless link connections
• CPC Class Codes: H04W 80/02 Data link layer protocols
• CPC Class Codes: H04W 80/06 Transport layer protocols, e.g. TCP [Transport Control Protocol] over wireless transmission control protocol/Internet protocol [TCP/IP] or user datagram protocol [UDP] H04L69/16

Abstract

A method for establishing a wireless connection performed by a subscriber station (SS) to receive Internet services from a given terminal node through a base station (BS), the method including: a) when an initial connection with the BS is established, establishing a first MAC connection with the BS, and setting the first MAC connection as a dedicated TCP connection; b) when a given packet is generated, the SS determining whether the given packet is a control packet for a TCP connection with the SS; c) transmitting the given packet through the dedicated TCP connection when a control packet is transmitted, and establishing a TCP connection with the SS; d) after establishing the TCP connection, establishing a second MAC connection for data communication between the SS and the BS; and e) after establishing the TCP connection and the second MAC connection, receiving data from the SS through the second MAC connection.

Claims

1. A method for establishing a wireless connection performed by a subscriber station to receive Internet services from a given terminal node through a base station, the method comprising:

a) when an initial connection with the base station is established, establishing a first medium access control (MAC) connection between the base station, and setting the first MAC connection as a dedicated connection;

b) when a given packet is generated, the subscriber station determining whether the given packet is a control packet for transmission Control Protocol (TCP) connection with the terminal node;

c) when the given packet is the control packet, transmitting the given packet through the dedicated TCP connection and establishing a TCP connection with the terminal node;

d) after establishing the TCP connection, establishing a second MAC connection for data communication between the terminal node and the base station; and

e) after establishing the TCP connection and the second MAC connection, receiving data from the terminal node through the second MAC connection.

2. The method of claim 1, further comprising:

extracting a destination address and a source address of the control packet when the TCP connection is established; and

mapping an identification number of the second MAC connection to the destination and source addresses, and generating a packet classification rule,

wherein in e), a packet having the destination and source addresses is transmitted through the second MAC connection.

3. The method of claim 1 or claim 2, further comprising:

when receiving data from the terminal node, the subscriber station transmitting a control packet for releasing a TCP connection through the dedicated TCP connection and releasing a TCP connection established between the subscriber station and the base station; and

releasing the second MAC connection with the base station when the TCP connection is released.

4. The method of claim 1 or claim 2, wherein the dedicated TCP connection is maintained until a connection between the subscriber station and the base station is shut down.

5. A subscriber station establishing a wireless connection to receive Internet services from a base station through a given terminal node in a wireless portable Internet system, the subscriber station comprising:

a Medium Access Control (MAC) connection processing unit establishing a first MAC connection with the base station and setting the connection as a dedicated TCP connection when an initial connection with the base station is established;

a packet generator generating a control packet for a TCP connection with the base station and a response packet in response to a given packet received at the subscriber station; and

a packet classifying unit analyzing a header of a packet transmitted from the packet generator and determining whether the packet is a control packet for a TCP connection, and transmitting the packet to the base station through the dedicated TCP connection when the packet is a control packet.

6. The subscriber station of claim 5, wherein the subscriber station comprises:

a physical layer performing wireless communication functions including modulation/demodulation and coding;

a MAC layer performing a wireless connection, and having a service specific convergence layer classifying and processing a TCP packet;

a Transmission Control Protocol/Internet Protocol (TCP/IP) layer transmitting data using a TCP protocol; and

an application layer including an application program using a network,

wherein the packet classifying unit and the MAC connection processing unit are included in the service specific convergence layer of the MAC layer.

7. The subscriber station of claim 5 or claim 6, wherein the packet classifying unit further comprises a classification rule database storing rules for identifying an identification number of a MAC connection corresponding to a destination address and a source address of a given packet.

8. The subscriber station of claim 7, wherein the packet classifying unit determines a connection corresponding to a destination address of a packet transmitted from the packet generator from the classification rule database, and transmits the packet to the connection after establishing the TCP connection.