Device Initiated DQoS System and Method

• US 20120294147A1
• Filed: 07/16/2012
• Published: 11/22/2012
• Est. Priority Date: 08/20/2010
• Status: Active Grant

• Current Assignee: Innomedia Pte Ltd
• Original Assignee: Innomedia Pte Ltd
• Inventors: Ajero, Don Philip, Lee, Chih-Ping, Lin, Nan-Sheng
• Granted Patent: US 9,479,544 B2
• Time in Patent Office: Days
• US Class Current: 370/230
• CPC Class Codes: H04L 12/2801 Broadband local area networks
• CPC Class Codes: H04L 12/2898 Subscriber equipments DSL modems H04M11/062; cable modems H04L12/2801
• CPC Class Codes: H04L 65/1036 at the edge
• CPC Class Codes: H04L 65/104 in the network
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04L 65/1104 Session initiation protocol [SIP]

Abstract

A Data Over Cable Service Interface Specification (DOCSIS) cable modem system is coupled to: i) via a local area internet protocol (IP) network, a voice over internet protocol (VoIP) device operating Session Initiation Protocol (SIP) for signaling a VoIP session; and ii) via a DOCSIS network, a cable modem termination system (CMTS) via a network. The cable modem system comprises instructions stored in a memory and executed by a processor. The instructions comprise: i) in response to receiving a frame via the local area IP network, determining if the frame is a Session Initiation Protocol (SIP) invite message signaling a VoIP session with a remote endpoint; and ii) in response to determining that the frame is a SIP invite message, generating a DOCSIS message to the CMTS to request an addition of reserved bandwidth on the DOCSIS network for the VoIP session.

Claims

1. A system comprising a Data Over Cable Service Interface Specification (DOCSIS) cable modem and a voice over internet protocol (VoIP) endpoint device, system comprising:

the VoIP endpoint device;

coupled to the DOCSIS cable modem via a local area internet protocol (IP) network; and

comprising instructions stored in a memory and executed by a processor, the instructions comprising;

in response to detecting user initiation of a VoIP session with a remote VoIP endpoint, sending a request bandwidth reservation instruction to the DOCSIS cable modem via the local area IP network;

waiting for an acknowledgment response from the DOCSIS cable modem acknowledging reservation of bandwidth on a DOCSIS network for the VoIP session; and

only upon receiving an acknowledgement response from the DOCSIS cable modem acknowledging reservation of bandwidth, generating a Session Initiation Protocol (SIP) message to a SIP proxy to signal the VoIP session between the VoIP endpoint device and the remote VoIP endpoint; and

the DOCSIS cable modem comprising instructions stored in a memory and executed by a processor, the instructions comprising;

in response to receiving the request bandwidth reservation instruction from the VoIP endpoint device via the local area IP network, generating a dynamic services addition request (DSA-REQ) message to a cable modem termination system (CMTS) via the DOCSIS Network, the DSA-REQ being a request to reserve bandwidth on the DOCSIS network for the VoIP session; and

in response to receiving a dynamic services addition response (DSA-RSP) from the CMTS, sending the acknowledgement response to the VoIP endpoint device via the local area IP network.

2. The system of claim 1, wherein the instructions of the VoIP endpoint device further comprise:

in response to receipt of a SIP OK message from the SIP proxy, sending a request bandwidth commitment instruction to the DOCSIS cable modem via the local area IP network;

waiting for an acknowledgment response from the DOCSIS cable modem acknowledging commitment of bandwidth on the DOCSIS network for the VoIP session; and

only upon receiving an acknowledgement response from the DOCSIS cable modem acknowledging commitment of bandwidth on the DOCSIS network, generating SIP messaging to the SIP proxy to signal commencement of a VoIP media session between the VoIP endpoint device and the remote VoIP endpoint.

3. The system of claim 1, wherein the instructions of the DOCSIS cable modem further comprise:

in response to receiving a request bandwidth commitment instruction from the VoIP endpoint device via the local area IP network, generating a dynamic services change request (DSC-REQ) to the CMTS via the DOCSIS network, the DSA-REQ being a request to commit reserved bandwidth on the DOCSIS network for the VoIP session; and

in response to receiving a dynamic services change response (DSC-RSP) from the CMTS, generating an acknowledgement response to the VoIP endpoint device via the local area IP network.

4. The system of claim 1, wherein the instructions of the DOCSIS cable modem further comprise:

in response to receiving the request bandwidth reservation instruction from the VoIP endpoint device via the local area IP network, generating an application signaling request message to a VoIP application server via the DOCSIS network; and

receiving an application signaling acknowledge from the VoIP application server in response to the application signaling request message, the application signaling acknowledge including a DQoS gate identifier allocated by the CMTS to the DOCSIS cable modem; and

including the DQoS gate identifier in the DSA-REQ sent to the CMTS.

5. A voice over internet protocol (VoIP) endpoint device:

coupled to a Data Over Cable Service Interface Specification (DOCSIS) cable modem via a local area internet protocol (IP) network; and

comprising instructions stored in a memory and executed by a processor, the instructions comprising;

in response to detecting user initiation of a VoIP session with a remote VoIP endpoint, sending a request bandwidth reservation instruction to the DOCSIS cable modem via the local area IP network;

waiting for an acknowledgement response from the DOCSIS cable modem via the local area IP network, the acknowledgement response indicating reservation of bandwidth by a cable modem termination system (CMTS) on a DOCSIS network for the VoIP session; and

only upon receiving the acknowledgement response from the DOCSIS cable modem acknowledging reservation of bandwidth on the DOCSIS network by the CMTS, generating a Session Initiation Protocol (SIP) message to a SIP proxy to signal the VoIP session between the VoIP endpoint device and the remote VoIP device.

6. The system of claim 5, wherein the instructions of the VoIP endpoint further comprise:

in response to receipt of a SIP OK message from the SIP proxy, sending a request bandwidth commitment instruction to the DOCSIS cable modem via the local area IP network;

waiting for an acknowledgment response from the DOCSIS cable modem acknowledging commitment of bandwidth on the DOCSIS network for the VoIP session; and

only upon receiving the acknowledgement response from the DOCSIS cable modem acknowledging commitment of bandwidth on the DOCSIS network, generating the SIP message to the SIP proxy to signal commencement of the VoIP session between the VoIP endpoint device and the remote VoIP endpoint.

7. A Data Over Cable Service Interface Specification (DOCSIS) cable modem system:

coupled, via a local area internet protocol (IP) network, to a voice over internet protocol (VoIP) endpoint device operating Session Initiation Protocol (SIP) for signaling a VoIP session;

coupled, via a DOCSIS network, to a cable modem termination system (CMTS); and

comprising instructions stored in a memory and executed by a processor, the instructions comprising;

in response to determining that an IP frame received on the local area IP network from the VoIP endpoint device includes a payload comprising a bandwidth reservation instruction, generating a dynamic services addition request (DSA-REQ) message to the CMTS, the DSA-REQ being a request to reserve bandwidth on the DOCSIS network for the VoIP session between the VoIP endpoint device and a remote VoIP device;

in response to receiving a dynamic services addition response (DSA-RSP) from the CMTS, sending an acknowledgement response to the VoIP endpoint device via the local area IP Network.

8. The system of claim 7, wherein the instructions of the DOCSIS cable modem further comprise:

in response to determining that an IP frame received on the local area IP network from the VoIP endpoint device includes a payload comprising a reserve bandwidth commitment instruction, generating a dynamic services change request (DSC-REQ) to the CMTS over the DOCSIS Network, the DSC-REQ being a request to commit reserved bandwidth for the VoIP session; and

in response to receiving a dynamic services change response (DSC-RSP) from the CMTS via the DOCSIS network, generating an acknowledgement response to the VoIP endpoint device.

9. The system of claim 7, wherein the instructions of the DQOS cable modem further comprise:

in response to determining that an IP frame received on the local area IP network from the VoIP endpoint device includes a payload comprising a bandwidth reservation instruction, generating an application signaling request message to a VoIP application server via the DOCSIS network; and

receiving an application signaling acknowledge from the VoIP application server in response to the application signaling request message, the application signaling acknowledge including a DQoS gate identifier allocated by the CMTS to the DOCSIS cable modem; and

including the gate identifier in the DSA-REQ to the CMTS.

10. A Data Over Cable Service Interface Specification (DOCSIS) cable modem system:

coupled, via a local area internet protocol (IP) network, to a voice over internet protocol (VoIP) endpoint device operating Session Initiation Protocol (SIP) for signaling a VoIP session;

coupled, via a DOCSIS network, to a cable modem termination system (CMTS); and

comprising instructions stored in a memory and executed by a processor, the instructions comprising;

in response to determining that the IP frame received from the VoIP endpoint device via the local area IP network is a SIP invite message, generating a dynamic services addition request (DSA-REQ) message to the CMTS via the DOCSIS network, the DSA-REQ being a request to reserve bandwidth on the DOCSIS network for a VoIP session between the VoIP endpoint device and a remote VoIP endpoint;

upon receiving a dynamic services addition response (DSA-RSP) from the CMTS in response to the DSA-REQ, forwarding the SIP invite message to a SIP proxy via the DOCSIS network.

11. The DOCSIS cable modem of claim 10, wherein the instructions of the DOCSIS cable modem further comprise:

in response to receiving an IP frame on the DOCSIS network from the SIP Proxy, determining whether the IP frame is a SIP OK message in response to the SIP invite message;

in response to determining that an IP frame received from the SIP proxy is a SIP OK message in response to the SIP invite message, generating a dynamic services change request (DSC-REQ) to the CMTS via the DOCSIS Network, the DSC-REQ being a request to commit reserved bandwidth on the DOCSIS network for a VoIP session; and

upon receiving a dynamic services change response (DSC-REQ) from the CMTS, forwarding the SIP OK message to the VoIP endpoint device on the local area IP network

12. The system of claim 10, wherein the instructions of the DQOS cable modem further comprise:

in response to determining that the IP frame received from the VoIP endpoint device via the local area IP network is a SIP invite message, generating an application signaling request message to a VoIP application server via the DOCSIS network; and

receiving an application signaling acknowledge from the VoIP application server in response to the application signaling request message, the application signaling acknowledge including a DQoS gate identifier allocated by the CMTS to the DOCSIS cable modem; and

including the DQoS gate identifier in the DSA-REQ sent to the CMTS.

13. A cable modem integrated session boarder control circuit coupled to:

a voice over internet protocol (VoIP) endpoint device via a local area internet protocol (IP) network; and

a cable modem circuit (CM) for communication with a cable modem termination system (CMTS) via a Data Over Cable Service Interface Specification (DOCSIS) network;

a session boarder control circuit comprising, as instructions stored in a memory and executed by a processor, a back to back user agent system (B2BUA) embedded with a DOCSIS dynamic quality of service system (DQoS);

the B2BUA, in response to receiving an IP frame via the local area IP network, determining if the frame is a Session Initiation Protocol (SIP) invite message;

in response to the B2BUA determining that the IP frame is a SIP invite message, the DQoS;

i) generates a dynamic services addition request (DSA-REQ) message to the CMTS; and

ii) receives a dynamic service addition response (DSA-RSP) message from the CMTS; and

the B2BUA, in response to the DQoS receiving the (DSA-RSP) from the CMTS, generating a corresponding SIP invite message to a SIP proxy.

14. The cable modem integrated session boarder controller circuit of claim 13, wherein:

the B2BUA, in response to receiving an IP frame via the DOCSIS network from the SIP Proxy, determining if the IP frame is a SIP OK message sent in response to the SIP invite message;

in response to the B2BUA determining that the frame a SIP OK message sent in response to the SIP invite message, the DQoS;

i) generates a dynamic services change request (DSC-REQ) message to the CMTS; and

ii) receives a dynamic service change response (DSC-RSP) from the CMTS; and

the B2BUA, in response to the DQoS receiving the DSC-RSP, generating a corresponding SIP OK message to the VoIP endpoint via the local area IP network.

15. The cable modem integrated session boarder controller circuit of claim 13:

the B2BUA, in response to determining that the IP frame received from the VoIP endpoint device includes a SIP invite message, generates an application signaling request message to a VoIP application server via the DOCSIS network; and

the B2BUA receiving an application signaling acknowledge from the VoIP application server in response to the application signaling request message, the application signaling acknowledge including a DQoS gate identifier allocated by the CMTS to the DOCSIS cable modem; and

the DQoS including the DQoS gate identifier in the DSA-REQ sent to the CMTS.

16. A system comprising a Data Over Cable Service Interface Specification (DOCSIS) cable modem and a voice over internet protocol (VoIP) endpoint device, system comprising:

the VoIP endpoint device;

coupled to the DOCSIS cable modem via a local area internet protocol (IP) network; and

comprising instructions stored in a memory and executed by a processor, the instructions comprising;

in response to receipt of a Session Initiation Protocol (SIP) invite message signaling an inbound session from a remote VoIP endpoint, sending a request bandwidth reservation instruction to the DOCSIS cable modem via the local area IP network;

waiting for an acknowledgment response from the DOCSIS cable modem acknowledging reservation of bandwidth on a DOCSIS network for the VoIP session; and

only upon receiving an acknowledgement response from the DOCSIS cable modem acknowledging reservation of bandwidth, generating a SIP trying message back to the source of the SIP invite message; and

the DOCSIS cable modem comprising instructions stored in a memory and executed by a processor, the instructions comprising;

in response to receiving the request bandwidth reservation instruction from the VoIP endpoint device via the local area IP network, generating a dynamic services addition (DSA-REQ) message to a cable modem termination system (CMTS) via the DOCSIS Network, the DSA-REQ being a request to reserve bandwidth on the DOCSIS network for the VoIP session; and

in response to receiving a dynamic services addition response (DSA-REQ) from the CMTS, sending the acknowledgement response to the VoIP endpoint device via the local area IP network.

17. The system of claim 16, wherein the instructions of the VoIP endpoint further comprise:

in response to detecting user acceptance of the VoIP session, sending a request bandwidth commitment instruction to the DOCSIS cable modem via the local area IP network;

waiting for an acknowledgment response from the DOCSIS cable modem acknowledging commitment of bandwidth on a DOCSIS network for the VoIP session; and

only upon receiving an acknowledgement response from the DOCSIS cable modem acknowledging commitment of bandwidth on the DOCSIS network, generating SIP messaging to the source of the SIP invite message to signal commencement of a VoIP session between the VoIP endpoint device and a remote VoIP endpoint.

18. The system of claim 16, wherein the instructions of the DOCSIS cable modem further comprise:

in response to receiving the request bandwidth commitment instruction from the VoIP endpoint device, generating a dynamic services change request (DSC-REQ) message to the CMTS via the DOCSIS Network, the DSC-REQ being a request to reserve bandwidth on the DOCSIS network for a VoIP session; and

in response to receiving a dynamic services change response (DSC-RSP) from the CMTS, sending the acknowledgement response to the VoIP endpoint device.

19. The system of claim 16, wherein the instructions of the DOCSIS cable modem further comprise:

in response to receiving the request bandwidth reservation instruction from the VoIP endpoint device via the local area IP network, generating an application signaling request message to a VoIP application server via the DOCSIS network; and

receiving an application signaling acknowledge from the VoIP application server in response to the application signaling request message, the application signaling acknowledge including a DQoS gate identifier allocated by the CMTS to the DOCSIS cable modem; and

including the DQoS gate identifier in the DSA-REQ sent to the CMTS.

20. A voice over internet protocol (VoIP) endpoint device:

coupled to a Data Over Cable Service Interface Specification (DOCSIS) cable modem via a local area internet protocol (IP) network; and

comprising instructions stored in a memory and executed by a processor, the instructions comprising;

in response to receipt of a Session Initiation Protocol (SIP) invite message signaling an inbound session from a remote VoIP endpoint, sending a request bandwidth reservation instruction to the DOCSIS cable modem via the local area IP network;

waiting for an acknowledgement response from the DOCSIS cable modem via the local area IP network, the acknowledgement response indicating reservation of bandwidth by a cable modem termination system (CMTS) on a DOCSIS network for the VoIP session; and

only upon receiving the acknowledgement response from the DOCSIS cable modem acknowledging reservation of bandwidth on the DOCSIS network by the CMTS, generating a SIP trying message back to the source of the SIP invite message.

21. The system of claim 20, wherein the instructions of the VoIP endpoint device further comprise:

in response to detecting user acceptance of the VoIP session, sending a request bandwidth commitment instruction to the DOCSIS cable modem via the local area IP network;

waiting for an acknowledgment response from the DOCSIS cable modem acknowledging commitment of bandwidth on the DOCSIS network for the VoIP session; and

only upon receiving an acknowledgement response from the DOCSIS cable modem acknowledging commitment of bandwidth, generating SIP messaging to the source of the SIP invite message to signal commencement of a VoIP session between the VoIP endpoint device and the remote VoIP endpoint.

22. A Data Over Cable Service Interface Specification (DOCSIS) cable modem system:

coupled, via a local area internet protocol (IP) network, to a voice over internet protocol (VoIP) endpoint device operating Session Initiation Protocol (SIP) for signaling a VoIP session;

coupled, via a DOCSIS network, to a cable modem termination system (CMTS); and

comprising instructions stored in a memory and executed by a processor, the instructions comprising;

in response to receiving, via the DOCSIS network, an IP frame from a remote SIP proxy addressed to the VoIP endpoint device, determining whether the IP frame includes a SIP invite message;

in response to determining that the IP frame includes a SIP invite message, generating a dynamic services addition request (DSA-REQ) message to the CMTS, the DSA-REQ being a request reserve bandwidth on the DOCSIS network for a VoIP session between the VoIP endpoint device and a remote VoIP device;

in response to receiving a dynamic services addition response (DSA-REQ) from the CMTS, sending the SIP invite message to the VoIP endpoint device via the local area IP network.

23. The DOCSIS cable modem of claim 22, wherein the instructions of the DOCSIS cable modem further comprise:

in response to receiving, via the local area IP network, an IP frame from the VoIP endpoint device addressed to the source of the SIP invite message, determining whether the IP frame includes a SIP OK message;

in response to determining that the IP frame includes a SIP OK message, generating a dynamic services change request (DSC-REQ) message to the CMTS, the DSC-REQ being a request to commit reserved bandwidth on the DOCSIS network for a VoIP session;

only upon receiving a dynamic services change response (DSC-RSP) from the CMTS, forwarding the SIP OK message to the source of the SIP invite message to signal commencement of the VoIP session between the VoIP device and the remote VoIP device.

24. The system of claim 22, wherein the instructions of the DOCSIS cable modem further comprise:

in response to determining that the IP frame received from the remote SIP proxy includes a SIP invite message, generating an application signaling request message to a VoIP application server via the DOCSIS network; and

receiving an application signaling acknowledge from the VoIP application server in response to the application signaling request message, the application signaling acknowledge including a DQoS gate identifier allocated by the CMTS to the DOCSIS cable modem; and

including the DQoS gate identifier in the DSA-REQ sent to the CMTS.

25. A cable modem integrated session boarder control circuit coupled to:

a voice over internet protocol (VoIP) endpoint device via a local area internet protocol (IP) network; and

a cable modem circuit (CM) for communication with a cable modem termination system (CMTS) via a Data Over Cable Service Interface Specification (DOCSIS) network;

the session boarder control circuit comprising, as instructions stored in a memory and executed by a processor, a back to back user agent system (B2BUA) embedded with a DOCSIS dynamic quality of service system (DQoS);

the B2BUA, in response to receiving an IP frame via the DOCSIS network, determining if the frame is a Session Initiation Protocol (SIP) invite message addressed to the VoIP endpoint device on the local area IP network;

in response to the B2BUA determining that the frame is a SIP invite message addressed to the VoIP endpoint device on the local area IP network, the DQoS;

i) generates a dynamic services addition request (DSA-REQ) message to the CMTS; and

ii) receives a dynamic services addition response (DSA-RSP) from the CMTS; and

the B2BUA, in response to the DQoS receiving the DSA-RSP from the CMTS, sends the SIP invite message to the VoIP endpoint device via the local area IP network.

26. The cable modem integrated session boarder control circuit of claim 25,

The DQoS, in response to the B2BUA detecting receipt of an IP frame via the local area IP network which includes a SIP Ok message in response to the SIP Invite message:

sending a dynamic services change request (DSC-REQ) to the CMTS, the DSC-REQ being a request to commit reserved bandwidth on a DOCSIS network for the VoIP session;

waiting for a dynamic services change response (DSC-RSP) from the CMTS acknowledging commitment of reserved bandwidth on the DOCSIS network; and

the B2BUA, only upon the DQoS receiving the DSC-RSP, sending the SIP Ok message to the source of the SIP invite message to signal commencement of the VoIP session between the VoIP endpoint device and the remote VoIP endpoint.

27. The system of claim 25, wherein the instructions of the DQoS further comprise:

in response to the B2BUA determining that the frame is a SIP invite message addressed to the VoIP endpoint device on the local area IP network, the DQoS generates an application signaling request message to a VoIP application server via the DOCSIS network; and

receiving an application signaling acknowledge from the VoIP application server in response to the application signaling request message, the application signaling acknowledge including a DQoS gate identifier allocated by the CMTS to the DOCSIS cable modem; and

including the DQoS gate identifier in the DSA-REQ sent to the CMTS.