METHOD AND APPARATUS FOR AUGMENTING THE DYNAMIC HASH TABLE WITH HOME SUBSCRIBER SERVER FUNCTIONALITY FOR PEER-TO-PEER COMMUNICATIONS

• US 20080162410A1
• Filed: 12/27/2006
• Published: 07/03/2008
• Est. Priority Date: 12/27/2006
• Status: Abandoned Application

• Current Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Montpetit, Marie Jose, Ganesan, Sathyam
• Application Number:
  US11/616,818
• Publication Number:
  US 20080162410A1
• Time in Patent Office: Days
• US Class Current: 707/2
• CPC Class Codes: H04L 67/104 Peer-to-peer [P2P] networks
• CPC Class Codes: H04L 67/1046 Joining mechanisms
• CPC Class Codes: H04L 67/1051 Group master selection mechanisms
• CPC Class Codes: H04L 67/1065 Discovery involving distributed pre-established resource-based relationships among peers, e.g. based on distributed hash tables [DHT] pre-configuration of logical or physical connections H04L67/1053
• CPC Class Codes: H04L 67/1093 Some peer nodes performing special functions

Abstract

A method and apparatus for augmenting a dynamic hash table (DHT) with home subscriber server (HSS) functionality for an electronic device in a peer-to-peer communications network is disclosed. The method may include, sending a DHT join query to join the peer-to-peer communications network, and determining if the DHT join query is answered. If the DHT query is not answered, the method may include assuming the role of super node, establishing a secure tunnel to an HSS and performing authentication, acquiring a secure key to communicate to the HSS, and answering queries from other nodes in the peer-to-peer communications network. Otherwise, if the DHT join query is answered, the method may include assuming a role other than the super node in the peer-to-peer communications network.

Claims

1. A method for augmenting a dynamic hash table (DHT) with home subscriber server (HSS) functionality for an electronic device in a peer-to-peer communications network, comprising:

sending a DHT join query to join the peer-to-peer communications network;

determining if the DHT join query is answered, wherein if the DHT query is not answered;

assuming the role of super node;

establishing a secure tunnel to an HSS and performing authentication;

acquiring a secure key to communicate to the HSS; and

answering queries from other nodes in the peer-to-peer communications network;

otherwise, if the DHT join query is answered, assuming a role other than the super node in the peer-to-peer communications network.

2. The method of claim 1, wherein if the DHT join query is answered, further comprising:

joining the peer-to-peer communications network;

acquiring a secure key from a higher-tier node for authentication and secure communication purposes.

3. The method of claim 2, further comprising:

determining if there is a need for a secondary super node, wherein if there is a need for a secondary super node;

assuming the role of secondary super node;

acquiring a secure key from the super node;

establishing a secure tunnel to the HSS; and

answering queries as the secondary super node for the peer-to-peer communications network;

otherwise, assuming a role other than a secondary super node in the peer-to-peer communications network.

4. The method of claim 1, further comprising:

determining that a query has been received from a querying node;

determining that the received query can not be answered;

querying one of the HSS and another super node for an answer to the query; and

outputting one of an answer and a negative response to the querying node.

5. The method of claim 4, wherein if it is determined that a query has not been received, waiting for a query to be received.

6. The method of claim 4, wherein if it is determined that the query can be answered, further comprising:

answering the query; and

waiting for the next query.

7. The method of claim 4, wherein the HSS is queried for an answer if the electronic device is a super node, and another super node is queried if the electronic device is not a super node.

8. An apparatus for augmenting a dynamic hash table (DHT) with home subscriber server (HSS) functionality for an electronic device in a peer-to-peer communications network, comprising:

a communication interface;

a DHT/HSS augmentation module that sends a DHT join query to join the peer-to-peer communications network, determines if the DHT join query is answered, wherein if the DHT query is not answered;

the DHT/HSS augmentation module enables the electronic device to assume the role of super node, establishes a secure tunnel using the communication interface with an HSS and performs authentication, acquires a secure key to communicate to the HSS, and answers queries from other nodes in the peer-to-peer communications network,

otherwise, the DHT/HSS augmentation module determines that the DHT join query is answered, the DHT/HSS augmentation module enables the electronic device to assume a role other than the super node in the peer-to-peer communications network.

9. The apparatus of claim 8, wherein if the DHT/HSS augmentation module determines that the DHT join query is answered, the DHT/HSS augmentation module enables the electronic device to join the peer-to-peer communications network, and acquires a secure key from a higher-tier node for authentication and secure communication purposes.

10. The apparatus of claim 9, wherein the DHT/HSS augmentation module determines if there is a need for a secondary super node, wherein if there is a need for a secondary super node:

the DHT/HSS augmentation module enables the electronic device to assume the role of secondary super node, acquires a secure key from the super node, establishes a secure tunnel to the HSS, and answers queries as the secondary super node for the peer-to-peer communications network,

otherwise, the DHT/HSS augmentation module enables the electronic device to assume a role other than a secondary super node in the peer-to-peer communications network.

11. The apparatus of claim 8, wherein the DHT/HSS augmentation module determines that a query has been received from a querying node, determines that the received query can not be answered, queries one of the HSS and another super node for an answer to the query, and outputs one of an answer and a negative response to the querying node.

12. The apparatus of claim 11, wherein if the DHT/HSS augmentation module determines that a query has not been received, the DHT/HSS augmentation module waits for a query to be received.

13. The apparatus of claim 11, wherein if the DHT/HSS augmentation module determines that the query can be answered, the DHT/HSS augmentation module answers the query, and waits for the next query.

14. The apparatus of claim 11, wherein the DHT/HSS augmentation module queries the HSS for an answer if the electronic device is a super node and queries another super node if the electronic device is not a super node.

15. An electronic device that augments a dynamic hash table (DHT) with home subscriber server (HSS) functionality in a peer-to-peer communications network, comprising:

a communication interface;

a transceiver for sending and receiving signals using the communication interface; and

a DHT/HSS augmentation module that sends a DHT join query to join the peer-to-peer communications network, determines if the DHT join query is answered, wherein if the DHT query is not answered;

the DHT/HSS augmentation module enables the electronic device to assume the role of super node, establishes a secure tunnel using the communication interface with an HSS and performs authentication, acquires a secure key to communicate to the HSS, and answers queries from other nodes in the peer-to-peer communications network,

otherwise, the DHT/HSS augmentation module determines that the DHT join query is answered, the DHT/HSS augmentation module enables the electronic device to assume a role other than the super node in the peer-to-peer communications network.

16. The electronic device of claim 15, wherein if the DHT/HSS augmentation module determines that the DHT join query is answered, the DHT/HSS augmentation module enables the electronic device to join the peer-to-peer communications network, and acquires a secure key from a higher-tier node for authentication and secure communication purposes.

17. The electronic device of claim 16, wherein the DHT/HSS augmentation module determines if there is a need for a secondary super node, wherein if there is a need for a secondary super node:

the DHT/HSS augmentation module enables the electronic device to assume the role of secondary super node, acquires a secure key from the super node, establishes a secure tunnel to the HSS, and answers queries as the secondary super node for the peer-to-peer communications network,

otherwise, the DHT/HSS augmentation module enables the electronic device to assume a role other than a secondary super node in the peer-to-peer communications network.

18. The electronic device of claim 15, wherein the DHT/HSS augmentation module determines that a query has been received from a querying node, determines that the received query can not be answered, queries one of the HSS and another super node for an answer to the query, and outputs one of an answer and a negative response to the querying node.

19. The electronic device of claim 18, wherein if the DHT/HSS augmentation module determines that the query can be answered, the DHT/HSS augmentation module answers the query, and waits for the next query.

20. The electronic device of claim 19, wherein the DHT/HSS augmentation module queries the HSS for an answer if the electronic device is a super node and queries another super node if the electronic device is not a super node.