IP Library Granted Patent US 7,843,957
Granted Patent B2
US 7,843,957 · App. 10/478,489 · Granted Nov 30, 2010

Method for managing a communication network comprising wireless links with more than two wireless devices

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Quick Facts
Patent No.
US 7,843,957
App. No.
10/478,489
Granted
Nov 30, 2010
Kind
B2
Abstract

The invention concerns a method for managing resets in a communication network comprising wireless devices connecting busses over a wireless link, comprising the steps of: electing a parent wireless device among the wireless devices of the network, other wireless devices being labeled child wireless devices; having a first child wireless device send a bus reset message to the parent wireless device further to a reset on the child wireless device's local bus; having the parent wireless device spread the bus reset to other child wireless devices; having the other child wireless devices perform a bus reset on their local wired bus.

Claims (16)

1. A method for managing resets in a communication network comprising wireless devices connecting busses over a wireless link, comprising:

electing a parent wireless device among the wireless devices of the network, other wireless devices being labeled child wireless devices;

detecting, at a first child wireless device, a bus reset on said first child wireless device's local bus;

having the first child wireless device send a bus reset message to the parent wireless device;

having the parent wireless device sends a parent bus reset message to other child wireless devices;

having the other child wireless devices perform a bus reset on said other child wireless devices' local wired bus.

2. The method according to claim 1 , wherein for the purpose of generating the bus reset, the parent wireless device sends to each child device the self-ids of the nodes of the entire network, except the nodes connected to the child device's bus.

3. The method according to claim 1 , wherein the bus reset message sent by the first child device contains self id packets of the nodes of this child device's bus.

4. The method according to claim 1 , further comprising having the parent device send an acknowledge message to the first child device upon completion of the bus reset by the other child devices.

5. The method according to claim 1 , wherein the busses are connected transparently as far as nodes connected to the busses are concerned, further comprising:

associating a wireless device with a central controller of the wireless link;

verifying whether the transparent connection of the wireless device results in an authorized network topology, and,

if the transparent connection of the wireless device does not result in an authorized topology, forbidding the transparent connection, maintaining the association, and rechecking the network topology condition at certain moments to reinitiate connection.

6. The method according to claim 5 , wherein the network topology condition is the total number of devices on the network.

7. The method according to claim 5 , further comprising verifying the network topology condition when a new device is added on a bus which is already transparently connected to the network through a wireless device and disconnecting said bus if the resulting network topology is not authorized, but maintaining association.

8. The method according to claim 7 , wherein the disconnected wireless device tries to connect again under one of the following conditions: the number of devices on said disconnected wireless device's bus has decreased or the number of devices on the rest of the network has decreased.

Assignments (2)
CORRECTIVE ASSIGNMENT TO CORRECT THE RECEIVING PARTY NAME FROM INTERDIGITAL CE PATENT HOLDINGS TO INTERDIGITAL CE PATENT HOLDINGS, SAS. PREVIOUSLY RECORDED AT REEL: 47332 FRAME: 511. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Feb 28, 2024
From: THOMSON LICENSING
To: INTERDIGITAL CE PATENT HOLDINGS, SAS
Reel/Frame 066703/0509 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 26, 2018
From: THOMSON LICENSING
To: INTERDIGITAL CE PATENT HOLDINGS
Reel/Frame 047332/0511 →