Wireless Sensor Network and Association Request Transmission Method

Patent metadata

Field	Value
Publication number	US-2017195825-A1
Application number	US-201715458876-A
Country	US
Kind code	A1
Filing date	Mar 27, 2017
Priority date	Mar 19, 2015
Publication date	Jul 6, 2017
Grant date	—

Abstract

A method of transmitting association requests in a wireless sensor network includes transmitting an association request from a leaf node to an intermediate node. The method further includes transmitting the association request from the. intermediate node during one of either a shared time slot or a dedicated time slot in response to at least one of the timing of dedicated time slots and data collision rates during shared time slots.

First claim

1 - 20 . (canceled)

21 . A method of transmitting association requests in a wireless sensor network, the method comprising:
receiving an association request in an intermediate node; transmitting the association request from the intermediate node during one of either a shared time slot or a dedicated time slot in response to at least one of the timing of the dedicated time slots and data collision rates during shared time slots.

22 . The method of claim 21 , in which transmitting the association request from the intermediate node is during a dedicated time slot in response to the dedicated time slot occurring before a shared time slot.

23 . The method of claim 21 , in which transmitting the association request from the intermediate node is during a dedicated time slot in response to the dedicated time slot occurring before a shared time slot irrespective of the number of data collisions occurring during the shared time slot.

24 . The method of claim 21 including monitoring data collisions during at least one shared time slot, in which the transmitting the association request from the intermediate node is during a dedicated time slot in response to the number of data collisions occurring during the at least one shared time slot exceeding a predetermined number during a predetermined period.

25 . The method of claim 21 including monitoring data collisions during at least one shared time slot, in which transmitting the association request from the intermediate node is during a shared time slot in response to: the number of data collisions occurring during the at least one shared time slot being fewer than a predetermined number during a predetermined period; and the shared time slot occurring before the dedicated time slot.

26 . The method of claim 21 including monitoring data collisions during at least one shared time slot, in which transmitting the association request from the intermediate node is during a dedicated time slot in response to: the number of data collisions occurring during the at least one shared time slot being fewer than a predetermined number during a predetermined period; and the dedicated time slot occurring before the shared time slot.

27 . The method of claim 21 , in which transmitting the association request from the intermediate node includes transmitting the association request to a root node.

28 . The method of claim 21 , in which transmitting the association request from the intermediate node includes transmitting the association request to a second intermediate node.

29 . The method of claim 21 , in which transmitting the association request from a leaf node to the intermediate node includes transmitting the association request from a leaf node to the intermediate node during a shared time slot,

30 . A wireless sensor network comprising:
an intermediate node; and wherein an association request transmitted to the intermediate node from a leaf node is transmitted from the intermediate node during one of either a shared time slot or a dedicated time slot in response to at least one of: the timing of the shared and dedicated time slots, and the data collision rate during the shared time slot.

31 . The wireless sensor network of claim 30 , in which the association request transmitted from the intermediate node is during a dedicated time slot in response to the dedicated time slot occurring before a shared time slot.

32 . The wireless sensor network of claim 30 , in which the association request transmitted from the intermediate node is during a dedicated time slot in response to the dedicated time slot occurring before a shared time slot irrespective of the number of data collisions occurring during the shared time slot.

33 . The wireless sensor network of claim 30 including monitoring data collisions during at least one shared time slot, in which the association request is transmitted from the intermediate node during a dedicated time slot in response to the number of data collisions occurring during the at least one shared time slot exceeding a predetermined number during a predetermined period.

34 . The wireless sensor network of claim 30 including monitoring data collisions in at least one shared time slot, in which the association request is transmitted from the intermediate node during a shared time slot in response to: the number of data collisions occurring during the at least one shared time slot being fewer than a predetermined number during a predetermined period; and the shared time slot occurring before the dedicated time slot.

35 . The wireless sensor network of claim 30 including monitoring data collisions during at least one shared time slot, in which the association request is transmitted from the intermediate node during a dedicated time slot in response to: the number of data collisions occurring during the at least one shared time slot being fewer than a predetermined number during a predetermined period; and the dedicated time slot occurring before the shared time slot.

36 . The method of claim 30 , in which the association request is transmitted from the intermediate node to a root node.

37 . The method of claim 30 , in which the association request is transmitted from the intermediate node to a second intermediate node.

38 . The method of claim 30 , in which the association request is transmitted from a leaf node to the intermediate node during a shared time slot,

39 . A method of transmitting association requests in a wireless sensor network, the method comprising:
transmitting an association request from an intermediate node during one of either a shared time slot or a dedicated time slot in response to at least one of a timing of dedicated time slots and a number of data collision rates occurring during a period of the shared time slot.

40 . The method of claim 39 , in which transmitting the association request includes transmitting the association request during a dedicated time slot if the dedicated time slot occurs before the shared time slot irrespective of the number of data collisions that occur during the shared time slot.

Assignees

• Texas Instruments Inc

Inventors

• Xhafa Ariton E
• Zhou Jianwei
• Raghu Arvind Kandhalu
• Nuzzaci Ryan

Classifications

• H04W72/0446

  Resources in time domain, e.g. slots or frames · CPC title

• H04W48/16

  Discovering, processing access restriction or access information · CPC title

• H04L12/44

  Star or tree networks · CPC title

• H04L41/0886

  Fully automatic configuration · CPC title

• H04W4/005 Primary

  Electricity · mapped topic