Scheme for adaptive control of transport layer connection in communications via radio and wire networks

• US 7,269,148 B2
• Filed: 07/08/2002
• Issued: 09/11/2007
• Est. Priority Date: 09/22/1997
• Status: Expired due to Fees

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Takagi, Masahiro, Tsunoda, Keiji, Kamagata, Eiji, Serizawa, Mutsumu, Kato, Noriyasu, Nounin, Katsuya, Nakakita, Kumiko
• Primary Examiner(s): Jung; Min
• Application Number:
  US10/189,502
• Publication Number:
  US 20020186680A1
• Time in Patent Office: 1,891 Days
• Field of Search: 370/328, 370/331, 370/332, 370/333, 370/401, 370/465, 455/550.1, 455/455
• US Class Current: 370/328
• CPC Class Codes: H04L 69/08 Protocols for interworking; Protocol conversion
• 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 69/169 Special adaptations of TCP, UDP or IP for interworking of IP based networks with other networks protocols for interworking, protocol conversion H04L69/08
• CPC Class Codes: H04L 69/326 in the transport layer [OSI layer 4] H04L69/16 takes precedence
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04W 80/04 Network layer protocols, e.g. mobile IP [Internet Protocol]
• 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
• CPC Class Codes: H04W 92/02 Inter-networking arrangements

Abstract

A communication scheme for improving the performance of communications utilizing the transport layer connection provided via a radio network, by enabling a control of the transport layer connection according to the radio communication state and property of the radio terminal, without changing implementation of the transport layer of a terminal connected to a wire network. The gateway device is provided with a control unit for controlling a connection in the radio transport layer protocol according an information regarding a radio communication state of the radio terminal device, where the information regarding the radio communication state of the radio terminal device is notified from either a radio base station device covering a radio service area in which the radio terminal device is located or a home location register for carrying out at least registration and management of the radio terminal device.

Claims

1. A radio terminal device accommodated in a radio network, the radio terminal device comprising:

an acquisition unit for acquiring an information which indicates that communications with the radio base station will be interrupted; and

a disconnection unit for disconnecting a transport layer connection with a radio base station, when communications with the radio base station are not resumed within a prescribed period of time after receiving the information.

2. The radio terminal device of claim 1, wherein the disconnection unit also disconnects a connection used by a correspondent terminal when a packet comes from the correspondent terminal that was carrying out communication using the transport layer connection after the transport layer connection is disconnected.

3. A radio terminal device accommodated in a radio network, the radio terminal device comprising:

an acquisition unit for acquiring an information which indicates that communications with the radio terminal device will be resumed;

a re-transmission timer for indicating a timing for a packet to be re-transmitted; and

a unit for resetting the re-transmission timer and immediately re-transmitting said packet to be re-transmitted, upon receiving the information.