Method and apparatus for hybrid communication network

• US 7,050,441 B2
• Filed: 11/29/2001
• Issued: 05/23/2006
• Est. Priority Date: 11/29/2000
• Status: Expired due to Fees

• Current Assignee: Altera Corporation (Intel Corporation)
• Original Assignee: PTS Corporation
• Inventors: Prakash, Adityo
• Primary Examiner(s): Patel, Ajit
• Assistant Examiner(s): SHAH, CHIRAG G
• Application Number:
  US09/998,014
• Publication Number:
  US 20020097727A1
• Time in Patent Office: 1,636 Days
• Field of Search: 370/395.42, 370351-356, 370/229, 370/230.1, 370/231, 370/235, 370/468
• US Class Current: 370/395.42
• CPC Class Codes: H04L 12/5692 Selection among different networks
• CPC Class Codes: H04L 45/00 Routing or path finding of packets in data switching networks routing or path finding in wireless networks H04W40/00
• CPC Class Codes: H04L 45/24 Multipath
• CPC Class Codes: H04L 47/10 Flow control; Congestion control
• CPC Class Codes: H04L 47/11 Identifying congestion
• CPC Class Codes: H04L 47/122 by diverting traffic away from congested entities
• CPC Class Codes: H04L 47/2408 for supporting different services, e.g. a differentiated services [DiffServ] type of service
• CPC Class Codes: H04L 47/2416 Real-time traffic
• CPC Class Codes: H04L 47/29 using a combination of thresholds

Abstract

The utilization of an non-QOS guaranteed network is envisioned within a communication network to increase bandwidth when necessary. In this system two locations are connected by two separate communications networks one QOS guaranteed QOS guaranteed network while the other non-QOS guaranteed packet based network without QOS guarantee. A smart buffering system integrates the two networks.

Claims

1. A communication network system, comprising:

a content server coupled with a transmitting location;

a content server coupled with a receiving center;

a QOS guaranteed data network connecting the transmitting location and the receiving center;

a non-QOS guaranteed data network connecting the transmitting location and the receiving center;

a buffer coupled with the transmitting location;

a buffer coupled with the receiving center;

a transmitting stream manager for routing traffic to either the QOS guaranteed or non-QOS guaranteed data networks; and

a receiving stream manager for detecting demand at the receiving center,

wherein the transmitting stream manager is configured to increase a data transmission rate by utilizing the non-QOS guaranteed data network when a fill level of the buffer at the transmitting location is above a threshold.

2. The communication network system of claim 1 where the QOS guaranteed data network is any packet based network.

3. The communication network system of claim 1 where the QOS guaranteed data network is a digital cable network between the transmitting location and the receiving location.

4. The communication network system of claim 1 where the non-QOS guaranteed data network is an Internet Protocol (IP) based network.

5. The communication network system of claim 1 where the non-QOS guaranteed data network is any packet based network.

6. The communication network system of claim 1 where the non-QOS guaranteed data network is any communication network between the transmitting location and the receiving location.

7. The communication network system of claim 1, where the buffer at the receiving center is configured to hold data until all of the packets necessary to reconstruct the data is received.

8. The communication network system of claim 7, where the buffer at the receiving center is configured to reconstruct the data.

9. The communication network system of claim 1, wherein the receiving stream manager is configured to detect a fill level of the buffer at the receiving center.

10. The communication network system of claim 9, wherein the receiving stream manager is configured to send a request to the stream manager at the transmitting location to increase the data transmission rate when the fill level of the buffer at the receiving center is below a threshold.

11. The communication network system of claim 1, wherein the receiving stream manager is configured to send a request to the stream manager at the transmitting location to give higher priority to specific data.

12. The communication network system of claim 11, wherein the receiving stream manager is configured to send a request to the transmitting stream manager to stop giving higher priority to the specific data.

13. The communication network system of claim 1, wherein the transmitting stream manager is configured to detect the fill level of the buffer at the transmitting location.

14. The communication network system of claim 1, wherein the transmitting stream manager is further configured to receive the request from the receiving stream manager to give higher priority to specific data.

15. The communication network system of claim 14, wherein the transmitting stream manager is further configured to redirect the specific data to the non-QOS guaranteed network.

16. The communication network system of claim 15, wherein the transmitting stream manager is further configured to resume normal delivery of the specific data to the receiving center upon receiving a request from the receiving stream manager to stop giving the higher priority to the specific data.

17. A method of communicating data packets from a content server, the method comprising:

buffering the data packets from the content server by using a buffer at a transmitting location;

determination by a transmitting stream manager whether the data packets are to be routed from the transmitting location to the receiving location via either a quality-of-service guaranteed data network or a non-quality-of-service guaranteed data network; and

increasing a data transmission rate by the transmitting stream manager determining to utilize the non-quality-of-service guaranteed data network when a fill level of the buffer at the transmitting location is above a predetermined threshold level.

18. A method of communicating data packets between two content servers, the method comprising:

buffering the data packets from a first content server by using a buffer at a transmitting location;

buffering the data packets to a second content server by using a buffer at a receiving location;

determination by a transmitting stream manager whether the data packets are to be routed from the transmitting location to the receiving location via either a quality-of-service guaranteed data network or a non-quality-of-service guaranteed data network; and

increasing a data transmission rate by the transmitting stream manager determining to utilize the non-quality-of-service guaranteed data network when a fill level of the buffer at the transmitting location is above a predetermined threshold level.

19. The method of claim 18, further comprising the transmitting stream manager giving higher priority to specific content after receiving a request from the receiving stream manager to give the higher priority to the specific content.