Method and apparatus for transmitting data having minimal bandwidth requirements

• US 5,903,735 A
• Filed: 12/24/1996
• Issued: 05/11/1999
• Est. Priority Date: 12/24/1996
• Status: Expired due to Term

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Adams, Robert, Kidder, Jeff
• Primary Examiner(s): Lim, Krisna
• Application Number:
  US08/777,960
• Time in Patent Office: 868 Days
• Field of Search: 340/825.05, 342/201, 370/233, 370/431, 370/412, 370/389, 370/466, 370/468, 395/200.7, 395/200.62
• US Class Current: 709/240
• CPC Class Codes: H04L 47/70 Admission control; Resource allocation
• CPC Class Codes: H04L 47/724 at intermediate nodes, e.g. resource reservation protocol [RSVP]
• CPC Class Codes: H04L 47/805 QOS or priority aware
• CPC Class Codes: H04L 67/131 Protocols for games, networked simulations or virtual reality
• CPC Class Codes: H04L 67/61 taking into account QoS or priority requirements
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

A method and apparatus of transmitting time critical messages over a network is provided. Data which has minimal bandwidth requirements, such as data packets utilized in applications such as twitch games, is received or generated in a network device. The data is classified as minimal bandwidth data and prioritized relative to other data for transmission before the other data. The data is then transmitted by the device to a second device on the network before the other data is transmitted.

Claims

1. A method of transmitting data over a network path comprising a plurality of nodes, said method comprising:

classifying said data which have minimal bandwidth requirements in a first classification as first data in a first node on said network path;

assigning a higher priority to said first data relative to other data without minimal bandwidth requirements for transmission;

transmitting said first data before transmitting said other data; and

maintaining said higher priority for said first data by said plurality of nodes of said network path.

2. A method of transmitting data over a network path according to claim 1, wherein the step of maintaining said higher priority further comprises:

receiving said first data at a second node on said network path;

determining said first classification for said first data;

further assigning a higher priority to said first data relative to further said other data for transmission; and

transmitting said first data from said second node before transmitting further said other data.

3. A method of transmitting data over a network path according to claim 1 further comprising the step of reserving resources within said plurality of nodes on said network path.

4. A method of transmitting data over a network path according to claim 3 wherein said step of reserving resources within said plurality of nodes includes the step of implementing a resource reservation protocol between each of said plurality of nodes.

5. A method of transmitting data over a network path according to claim 2 wherein said first node is a source host, and said second node is a network router, and said first node generates data having minimum bandwidth requirements from a twitch game application executed on said first node.

6. A method of transmitting a data packet over a network, said network comprising a plurality of network devices connected by a connection medium, said method comprising:

reserving network resources within said network devices using a first network protocol;

reserving a subset of said network resources within said network devices using a second network protocol; and

transmitting said data packet from one of said network devices to a second of said network devices using said second network protocol, said second network protocol placing and maintaining said data packet at a first priority level in a data queue utilized by said first network protocol.

7. A method as in claim 6, wherein said step of reserving network resources within said network devices comprises the step of sending a first message from one of said plurality of network devices to at least one of the remainder of said plurality of network devices.

8. A method as in claim 7, wherein said first network protocol is a resource reservation protocol, and wherein said first message is a resource reservation request.

9. A method as in claim 7, wherein said step of reserving a subset of said network resources within said network devices comprises the step of sending a second message from one of said plurality of network devices to at least one of the remainder of said plurality of network devices, said second message containing fields which define characteristics associated with said data packet.

10. A method as in claim 7, wherein said second network protocol is an extension of said first network protocol, and said step of reserving a subset of said network resources includes the step of defining one or more data parameter fields within a predetermined field associated with said first message.

11. A method as in claim 10, wherein the step of reserving a subset of network resources further includes the steps of:

defining the number of bits contained within said data packet;

defining the number of data packets to be transmitted within a unit of time; and

defining one or more special handling requirements for the transmission of said data packets.

12. A method as in claim 11, wherein said step of defining special handling requirements includes at least one of the following steps:

bundling a predetermined number of data packets to be transmitted concurrently over said network;

compressing said data packet prior to transmission over said network;

or

reducing the reserved subset of network resources in correspondence with said number of bits contained within said data packet and said number of data packets to be transmitted.

13. A method of executing a command over a network, said network comprising a first computer, a second computer, and a plurality of network devices coupled between said first computer and second computer, said method comprising:

classifying said command as having minimal bandwidth requirements;

reserving network resources within said network devices using a network protocol; and

transmitting said command from said first computer to at least one of said plurality of network devices using said network protocol, said network protocol placing and maintaining said command at a predetermined priority level in a data queue utilized by said at least one of said plurality of network devices.

14. A method as in claim 13 wherein said network protocol includes means for defining a first protocol message, said first protocol message including one or more header fields and a message parameter field.

15. A method as in claim 14 wherein said message parameter field includes a message parameter subfields for specifying characteristics associated with one or more data packets encapsulated within said command.

16. A method as in claim 15 wherein said characteristics include the size of said one or more data packets, the transmission rate of said one or more data packets, and predefined functions defining the transmission of said data packets, said predefined functions including bundling a plurality of said data packets for concurrent transmission, and compressing said one or more data packets prior to transmission.

17. A device for transmitting and receiving messages on a network, the device comprising:

a processor; and

a memory coupled to the processor, the memory having stored therein instructions which, when executed by the processor, cause said device to;

generate data having minimal bandwidth requirements;

classify said data as having minimal bandwidth requirements;

assign a higher priority to said data relative to other data without minimal bandwidth requirements for transmission; and

transmit said data before transmitting said other data.

18. A device as in claim 17, wherein said instructions further cause said device to reserve resources within said plurality of nodes on said network.

19. A device for transmitting and receiving messages on a network, the device comprising:

a processor; and

a memory coupled to the processor, the memory having stored therein instructions which, when executed by the processor, cause said device to;

receive data over said network from a second device on said network;

classify said data as having minimal bandwidth requirements if said second device has classified said data as having minimal bandwidth requirements;

assign a higher priority to said data relative to other data without minimal bandwidth requirements for transmission; and

transmit said data from said device before transmitting said other data.

20. A memory containing a sequence of instructions, said sequence of instructions being executable on a processor, and wherein execution of said sequence of instructions by said processor causes said processor to perform the steps of:

generating data, said data having minimal bandwidth requirements;

classifying said data as having minimal bandwidth requirements;

assigning a higher priority to said data relative to other data without minimal bandwidth requirements for transmission; and

transmitting said data before transmitting said other data.

21. A memory containing a sequence of instructions, said sequence of instructions being executable on a processor, and wherein execution of said sequence of instructions by said processor causes said processor to perform the steps of:

receiving data, said data having minimal bandwidth requirements;

determining a classification for said data;

assigning a higher priority to said data relative to other data without minimal bandwidth requirements for transmission; and

transmitting said data from before transmitting said other data.