ANCHORING INTERNET PROTOCOL MULTICAST SERVICES IN INFORMATION CENTRIC NETWORKS

• US 20180367327A1
• Filed: 12/09/2016
• Published: 12/20/2018
• Est. Priority Date: 12/09/2015
• Status: Active Grant

• Current Assignee: InterDigital Patent Holdings, Inc. (InterDigital, Inc.)
• Original Assignee: IDAC Holdings, Inc. (InterDigital, Inc.)
• Inventors: Trossen, Dirk
• Granted Patent: US 10,581,626 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 12/1836 with heterogeneous network architecture
• CPC Class Codes: H04L 12/185 with management of multicast group membership
• CPC Class Codes: H04L 12/1859 adapted to provide push services, e.g. data channels
• CPC Class Codes: H04L 2212/00 Encapsulation of packets
• CPC Class Codes: H04L 45/745 Address table lookup; Address filtering
• CPC Class Codes: H04L 61/4547 for personal communications, i.e. using a personal identifier
• CPC Class Codes: H04W 4/08 User group management

Abstract

Some embodiments include systems, methods, and devices for enabling communication between at least two internet protocol (IP)-only wireless transmit/receive units (WTRUs), at least one of which is connected to an information centric network (ICN). The WTRU may send a generic attribute registration multicast registration protocol (GMRP) request on a local IP link to an information centric network (ICN) network attachment point (NAP). The NAP may receive and register the GMRP request with an internal database (DB) along with an IP multicast address entry matching the GMRP request. The WTRU may then send an IP multicast packet to the NAP for dissemination to an IP multicast group over an ICN by encapsulating the IP multicast packet in an ICN packet.

Claims

1. A device for carrying out networking functions in an information centric network (ICN), the device comprising:

a transceiver;

a storage element; and

a processor coupled to the storage element and the transceiver, the processor, storage element, and transceiver configured to;

receive a generic attribute registration protocol multicast registration protocol (GMRP) request, wherein the request contains information about an internet protocol (IP) multicast address;

receive an IP multicast packet associated with the IP multicast address;

encapsulate the IP multicast packet in an ICN packet; and

publish the ICN packet over the ICN to a receiving network access point (NAP).

2. The device of claim 1, the processor, storage element, and transceiver further configured to:

search a first database in the storage element for information corresponding to the GMRP request,

on a condition that the search finds no corresponding information to the GMRP request, the processor is configured to create an entry of corresponding information in the first database, to subscribe to a control channel for the IP multicast address, to publish to a data channel for the IP multicast address, and to insert an empty set of node identifiers (NIDs) in the created entry.

3. The device of claim 1, the processor, storage element, and transceiver further configured to:

receive a request to publish message from the receiving NAP;

send the IP multicast packet encapsulated in the ICN packet in response to receiving the request to publish message; and

update the first database with information related to the request to publish message.

4. The device of claim 3, the processor, storage element, and transceiver further configured to:

check the first database for a fresh status of information relating to the IP multicast packet; and

on a condition that the fresh status is true, encapsulate the IP multicast packet in an ICN packet, and publish the ICN packet to the ICN;

or

on a condition that the fresh status is not true, update the information relating to the IP multicast packet, reset the fresh status to true, encapsulate the IP multicast packet in an ICN packet, and publish the ICN packet to the ICN.

5. The device of claim 4, wherein the first database comprises at least data relating to IP multicast addresses, ICN names for the control channel (CID_C), ICN names for the data channel (CID_D) channels, node IDs (NIDs) of multicast group members, forwarding identifiers (FIDs), and freshness information.

6. A method for communicating over an information centric network (ICN), the method comprising:

receiving, at a device, a generic attribute registration protocol multicast registration protocol (GMRP) request from a source, wherein the request contains information about an internet protocol (IP) multicast address;

receiving, by the device, an IP multicast packet from the source associated with the IP multicast address;

encapsulating the IP multicast packet in an ICN packet; and

publishing the ICN packet over the ICN to a receiving network access point (NAP).

7. The method of claim 6, further comprising:

searching, by the device, a first database for information corresponding to the GMRP request,

on a condition that no corresponding information is found, creating an entry, by the device, of corresponding information in the first database, subscribing to a control channel for the IP multicast address, publishing to a data channel for the IP multicast address, and inserting an empty set of node identifiers (NIDs) in the created entry;

8. The method of claim 6, further comprising:

receiving a request to publish message from the receiving NAP;

sending the IP multicast packet encapsulated in the ICN packet in response to receiving the request to publish message; and

update the first database with information related to the request to publish message.

9. The method of claim 8, wherein the first database comprises at least data relating to IP multicast addresses, ICN names for the control channel (CID_C), ICN names for the data channel (CID_D) channels, node IDs (NIDs) of multicast group members, forwarding identifiers (FIDs), and freshness information.

10. The method of claim 9, further comprising:

checking, by the device, the first database for a fresh status of information relating to the IP multicast packet; and

on a condition that the fresh status is true, encapsulating the IP multicast packet in an ICN packet, and publishing the ICN packet to the ICN;

or

on a condition that the fresh status is not true, updating the information relating to the IP multicast packet, resetting the fresh status to true, encapsulating the IP multicast packet in an ICN packet, and publishing the ICN packet to the ICN.

11. The method of claim 6, further comprising:

receiving at the device an internet group management protocol (IGMP) request;

checking, by the device, for an entry in a second database of corresponding information of the IGMP; and

sending, by the device, a request to publish message to the ICN with the corresponding information of the IGMP.