Method and apparatus for MoCA network with protected set-up

Patent metadata

Field	Value
Publication number	US-9647817-B2
Application number	US-201514857453-A
Country	US
Kind code	B2
Filing date	Sep 17, 2015
Priority date	Sep 17, 2014
Publication date	May 9, 2017
Grant date	May 9, 2017

Abstract

Systems and methods are disclosed for securing a network, for admitting new nodes into an existing network, and/or for securely forming a new network. As a non-limiting example, an existing node may be triggered by a user, in response to which the existing node communicates with a network coordinator node. Thereafter, if a new node attempts to enter the network, and also for example has been triggered by a user, the network coordinator may determine, based at least in part on parameters within the new node and the network coordinator, whether the new node can enter the network.

First claim

The invention claimed is:

1. A network comprising:
a first node; and
a second node, wherein:
the first node comprises at least one circuit operable to, at least:
send a first message to the second node comprising information that indicates protected setup has been triggered;
send a second message to the second node indicating a slot in which the second node is to acknowledge receipt of the first message; and
determine whether the first node is going to send a password to the second node or whether the second node is going to send a password to the first node; and

the second node comprises at least one circuit operable to, at least:
receive the first message;
receive the second message;
send a message to the first node in the slot specified by the second message acknowledging receipt of the first message; and
determine whether the first node is to send a password to the second node or whether the second node is to send a password to the first node.

2. The network of claim 1 , wherein the at least one circuit of the first node operates to, if the second node acknowledges receipt of the first message, then send to the second node a third message comprising public key information, and a fourth message indicating a slot in which the second node is to acknowledge receipt of the third message.

3. The network of claim 2 , wherein the at least one circuit of the first node operates to wait at least a first predetermined amount of time after receiving the fourth message before exchanging password information with the second node.

4. The network of claim 1 , wherein the at least one circuit of the first node operates to, if it is determined that the first node is to send a password to the second node, then:
transmit a third message to the second node communicating the password to the second node; and
transmit a fourth message indicating a slot in which the second node is to acknowledge receipt of the third message.

5. The network of claim 1 , wherein if it is determined that the second node is to send a password to the first node, then:
the at least one circuit of the first node operates to transmit a third message to the second node indicating a slot in which the second node is to send a fourth message communicating the password to the first node; and
the at least one circuit of the second node operates to transmit the fourth message communicating the password to the first node.

6. The network of claim 5 , wherein the third message specifies that the fourth message be of a particular type.

7. A network node comprising:
at least one circuit operable to, at least:
send a first message to a second node comprising information that indicates protected setup has been triggered;
send a second message to the second node indicating a slot in which the second node is to acknowledge receipt of the first message;
receive a message from the second node acknowledging receipt of the first message by the second node;
determine whether to send a password to the second node or whether to receive a password from the second node;
if it is determined to send a password to the second node, then send a password of the network node to the second node; and
if it is determined to receive a password from the second node, then receive a password of the second node from the second node.

8. The network node of claim 7 , wherein the second message specifies a particular type of acknowledgement message to be transmitted by the second node in the indicated slot.

9. The network node of claim 8 , wherein the at least one circuit operates to, if the network node does not receive the particular type of acknowledgement message before a predetermined time has passed, then resend the first and second messages.

10. The network node of claim 7 , wherein the at least one circuit operates to, if the second node acknowledges receipt of the first message, then transmit to the second node a third message comprising public key information and a fourth message indicating a slot in which the second node is to acknowledge receipt of the third message.

11. The network node of claim 10 , wherein the at least one circuit operates to wait at least a first predetermined amount of time after the second node acknowledges receipt of the third message before exchanging password information with the second node.

12. The network node of claim 7 , wherein the first message is a Discovery Response message comprising an information element indicating that protected setup has been triggered.

13. The network node of claim 7 , wherein if it is determined that the network node is to send a password to the second node, then the at least one circuit operates to:
transmit a third message to the second node communicating the password to the second node; and
transmit a fourth message indicating a slot in which the second node is to acknowledge receipt of the third message.

14. The network node of claim 7 , wherein if it is determined that the second node is to send a password to the first node, then the at least one circuit operates to:
transmit a third message to the second node indicating a slot in which the second node is to send a fourth message communicating the password to the network node; and
receive the fourth message communicating the password from the second node.

15. The network node of claim 14 , wherein the third message specifies that the fourth message be of a particular type.

16. The network node of claim 7 , wherein the first node is a network coordinator node.

17. A network node comprising:
at least one circuit operable to, at least:
receive a first message from a second node comprising information that indicates protected setup has been triggered;
receive a second message from the second node indicating a slot in which the network node is to acknowledge receipt of the first message;
transmit a message to the second node at the indicated slot acknowledging receipt of the first message by the network node;
determine whether to send a password to the second node or whether to receive a password from the second node;
if it is determined to send a password to the second node, then send a password of the network node to the second node; and
if it is determined to receive a password from the second node, then receive a password of the second node from the second node.

18. The network node of claim 17 , wherein the second message specifies a particular type of acknowledgement message to be transmitted by the network node in the indicated slot.

19. The network node of claim 17 , wherein the first message is a Discovery Response message comprising an information element indicating that protected setup has been triggered.

20. The network node of claim 17 , wherein if it is determined that the network node is going to send a password to the second node, then the at least one circuit operates to:
receive a third message from the second node indicating a slot in which the network node is to send a fourth message communicating the password to the second node; and
transmit the fourth message in the slot indicated by the third message communicating the password to the second node.

Assignees

• Maxlinear Inc

Inventors

• Hebron Yoav
• Chen Na
• Wu Zong Liang
• Lee Ronald

Classifications

• H04L1/1607

  Details of the supervisory signal · CPC title

• H04W8/005

  Discovery of network devices, e.g. terminals · CPC title

• H04L12/2801

  Broadband local area networks · CPC title

• H04L5/0055 Primary

  Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861) · CPC title

• H04L49/00

  Packet switching elements · CPC title