ADSL downloading with priority transmit queue

• US 20030074465A1
• Filed: 09/19/2002
• Published: 04/17/2003
• Est. Priority Date: 10/15/2001
• Status: Abandoned Application

• Current Assignee: Texas Instruments, Inc.
• Original Assignee: Texas Instruments, Inc.
• Inventors: Tang, Jun, Tang, Zhicheng
• Application Number:
  US10/247,226
• Publication Number:
  US 20030074465A1
• Time in Patent Office: Days
• US Class Current: 709/237
• CPC Class Codes: H04L 1/16 in which the return channel carries supervisory signals, e.g. repetition request signals
• CPC Class Codes: H04L 1/1835 Buffer management
• CPC Class Codes: H04L 1/1854 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 67/06 specially adapted for file transfer, e.g. file transfer protocol [FTP]
• CPC Class Codes: H04L 67/61 taking into account QoS or priority requirements
• 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 69/161 Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]

Abstract

An improved ADSL system and system for downloading and uploading data packets between a server and a client is provided by the client having a normal first-in-first-out queue for sending uploading data to said server and a separate priority first-in-first-out queue for sending acknowledgments back to said server to enable the server to send more download data. The client determines if the priority queue is empty and sends the data packets only when the priority queue is empty.

Claims

1. A method of simultaneously uploading and downloading data comprising the step of:

sending any acknowledgements of received downloading before sending other uploading data.

2. The method of claim 1 wherein said acknowledgements are placed in a first-in-first-out priority queue.

3. The method of claim 2 wherein said other uploading data is placed in a first-in-first-out queue that sends uploading data when there is no data in the first-in-first-out priority queue.

4. A method of simultaneously uploading and downloading comprising the steps of:

providing a priority queue and a normal queue at a client for uploading to a server wherein said priority queue is for uploading acknowledgements and said normal queue is for uploading data;

sending download requests from a client;

negotiating and authenticating between said client and a server;

sending packets to said client;

receiving packets at said client; and

sending acknowledgement of receipt of packets at said client from said client to said server from said priority queue before sending data from said normal queue.

5. The method of claim 4 wherein said normal queue and said priority queue are first-in-first-out queues.

6. The method of claim 4 wherein said sending acknowledgement step includes the step of determining if the prior queue is empty before sending data from said normal queue.

7. An ADSL system for downloading and uploading data packets comprising:

a server and a client;

said client having a normal queue for sending uploading data to said server and a priority queue for sending acknowledgment back to said server to enable the server to send more download data; and

said client sending uploading data from said normal queue only when there is no acknowledgement in the priority queue to be sent from the client to said server.

8. The system of claim 7 wherein said priority queue is a first-in-first-out priority queue.

9. The system of claim 7 wherein said normal queue for sending data is a first-in-first out queue.

10. The system of claim 7 wherein said client includes means for determining if the priority queue is empty.