Communication system for voice and data with wireless TCP server

• US 20040192312A1
• Filed: 07/16/2002
• Published: 09/30/2004
• Est. Priority Date: 07/16/2002
• Status: Abandoned Application

• Current Assignee: Fan Zhang, Jia-Ru Li, Kueihsien Tseng, Sang-Ho Park, Xiaodong Chen
• Original Assignee: Fan Zhang, Jia-Ru Li, Kueihsien Tseng, Sang-Ho Park, Xiaodong Chen
• Inventors: Park, Sang-Ho, Chen, Xiaodong, Zhang, Fan, Li, Jia-Ru, Tseng, Kueihsien
• Application Number:
  US10/198,057
• Publication Number:
  US 20040192312A1
• Time in Patent Office: Days
• US Class Current: 455/445
• CPC Class Codes: H04L 1/16 in which the return channel carries supervisory signals, e.g. repetition request signals
• CPC Class Codes: H04L 47/10 Flow control; Congestion control
• CPC Class Codes: H04L 47/12 Avoiding congestion; Recovering from congestion
• CPC Class Codes: H04L 47/2408 for supporting different services, e.g. a differentiated services [DiffServ] type of service
• CPC Class Codes: H04L 47/2433 Allocation of priorities to traffic types
• CPC Class Codes: H04L 47/37 Slow start
• CPC Class Codes: H04L 69/08 Protocols for interworking; Protocol conversion
• CPC Class Codes: H04L 69/085 specially adapted for interworking of IP-based networks with other networks
• CPC Class Codes: H04W 28/0273 adapting protocols for flow control or congestion control to wireless environment, e.g. adapting transmission control protocol [TCP] wireless network protocols or protocol adaptations to wireless operation, e.g. wireless application protocol H04W80/00
• CPC Class Codes: H04W 4/18 Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
• CPC Class Codes: H04W 40/02 Communication route or path selection, e.g. power-based or shortest path routing
• CPC Class Codes: H04W 8/04 Registration at HLR or HSS [Home Subscriber Server]
• 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 84/00 Network topologies

Abstract

A wireless communication system is structured to a have a first branch and a second branch. The first branch is configured for communications between a wireless terminal and a telecommunication device coupled to a PSTN. The second branch is configured for data communications between the wireless terminal and a host server coupled to the Internet. The second branch includes a PDSN coupled to receive data signals from the wireless terminal and to send data signals to the wireless terminal, a router coupled to the Internet, and a server coupled between the router and the PDSN. The server is configured to translate a first transmission protocol used for communications over the Internet to a second transmission protocol used for communications with the wireless terminal.

Claims

1. A wireless communication system comprising:

a first branch configured for communications between a wireless terminal and a telecommunication device coupled to a first network;

a second branch configured for data communications between the wireless terminal and a host server coupled to a second network, the second branch comprising;

a first network element coupled to receive data signals from the wireless terminal and to send data signals to the wireless terminal;

a router coupled to the second network; and

a server coupled between the router and the first network element, the server configured to translate a first transmission protocol used for communications over the second network to a second transmission protocol used for communications with the wireless terminal.

2. The system of claim 1, wherein the first network is a public switched telephone network.

3. The system of claim 1, wherein the second branch is configured for packet-switched transmission.

4. The system of claim 3, wherein the first network element is a packet data serving node.

5. The system of claim 1, wherein the first and second branches are configured for communications in accordance with a code division multiple access technology.

6. The system of claim 1, wherein the second network is the Internet.

7. The system of claim 6, wherein the first transmission protocol is a transmission control protocol (TCP) defined for Internet applications, and wherein the second transmission protocol is a wireless transmission control protocol (WTCP).

8. The system of claim 7, wherein the server is configured to receive a data packet from the Internet and to divide the data packet into a predetermined number of different classes to generate a transmit queue for each class, wherein each class represents a wireless terminal.

9. The system of claim 8, wherein the server is further configured to prioritize the classes for transmission to the wireless terminals.

10. A method of transmitting data signals between a wireless terminal and a host server coupled to the Internet, comprising:

receiving data at a server interposed between a router coupled to the Internet and a first network element coupled to communicate with a wireless terminal;

upon receipt of data sent by the router, translating a first transmission protocol used for communications over the Internet to a second transmission protocol used for communications with the wireless terminal; and

upon receipt of data sent by the first network element, translating the second transmission protocol to the first transmission protocol.

11. The method of claim 10, wherein the act of translating the first transmission protocol to the second transmission protocol includes dividing an incoming packet into a predetermined number of classes of packets, wherein each class represents a wireless terminal.

12. The method of claim 11, wherein the act of translating the first transmission protocol to the second transmission protocol includes prioritizing the classes of packets for transmission to wireless terminals.

13. The method of claim 10, wherein the act of translating the first transmission protocol to the second transmission protocol includes entering into a modified slow start procedure in which a used bandwidth increases to about 25% within a predetermined time.

14. The method of claim 10, wherein the act of translating the first transmission protocol to the second transmission protocol includes entering into a modified congestion avoidance mode in which a used bandwidth is maintained between about 100% and about 75%.

15. A method of transmitting data signals between a wireless terminal and a host server coupled to the Internet, comprising:

sending data from a host server via the Internet to a router using a first communications protocol;

forwarding the data from the router to a server coupled between the router and a first network element; and

translating the first transmission protocol used for communications over the second network to a second transmission protocol used for communications with the wireless terminal.