Channel change decision mechanism and method for a wireless network

• US 10,051,541 B2
• Filed: 05/20/2008
• Issued: 08/14/2018
• Est. Priority Date: 05/25/2007
• Status: Active Grant

• Current Assignee: Signify Holding B.V. (Signify N.V.)
• Original Assignee: Philips Lighting Holding BV (Signify N.V.)
• Inventors: Rudland, Philip Andrew, Benjes, Immo
• Primary Examiner(s): Thier, Michael
• Assistant Examiner(s): Haile, Feben
• Application Number:
  US12/600,748
• Publication Number:
  US 20100165861A1
• Time in Patent Office: 3,738 Days
• Field of Search: 370241, 370252, 370328, 370329, 370431, 370436, 370464, 370465
• CPC Class Codes: H04W 36/26 by agreed or negotiated communication parameters
• CPC Class Codes: H04W 36/304 due to measured or perceived resources with higher communication quality

Abstract

In a communication network (100) comprising a plurality of wireless devices (120), a method determines whether to change one or more communication channels over which the wireless devices (120) communicate. The method includes receiving a plurality of configuration parameters for the communication network (100); receiving information related to one or more communication channel'"'"'s availability for communications by one or more of the wireless devices (120); and determining whether to change one or more communication channels over which the wireless devices (120) communicate by executing a communication channel change determination algorithm using the configuration parameters and the received information related to one or more communication channel'"'"'s availability for communications by one or more of the wireless devices (120).

Claims

1. In a communication network comprising a plurality of wireless devices which communicate over a specified number of communication channels in a defined portion of a frequency spectrum, and a method of determining whether to change one or more communication channels over which the wireless devices communicate, the method comprising:

receiving an indication of a selected operating mode for the communication network among a plurality of available operating modes, each operating mode having associated therewith a different communication channel change determination algorithm uniquely corresponding to that operating mode;

receiving information related to one or more communication channel'"'"'s availability for communications by one or more of the wireless devices; and

determining whether to change one or more communication channels over which the wireless devices communicate by executing the communication channel change determination algorithm corresponding to the selected operating mode, using the received information related to one or more communication channel'"'"'s availability for communications by one or more of the wireless devices.

2. The method of claim 1, wherein the indication of the selected operating mode is received from a user via a user interface associated with the communication network.

3. The method of claim 1, wherein the indication of the selected operating mode is a current time that automatically selects the operating mode.

4. The method of claim 1, wherein the indication of the selected operating mode is an alarm signal that automatically selects the operating mode.

5. The method of claim 1, wherein the communication channel change

determination algorithm compares a communication quality parameter determined from the received information related to one or more communication channel'"'"'s availability for communications by one or more of the wireless devices to a threshold value, and determines whether to change one or more communication channels over which the wireless devices communicate based at least in part on a result of the comparison.

6. The method of claim 1, further comprising automatically executing a communication channel change determination algorithm when it is determined to change one or more communication channels over which the wireless devices communicate.

7. The method of claim 1, further comprising providing an indication to a user to manually initiate a communication channel change determination algorithm when it is determined to change one or more communication channels over which the wireless devices communicate.

8. The method of claim 1, wherein the available operating modes comprise:

a first operating mode which selects a new communication channel that maximizes a number of the wireless devices in the communication network which have communication capability over the communication channel; and

a second operating mode which selects a new communication channel that maximizes a total data throughput capability of the communication network.

9. The method of claim 1, wherein at least one of the communication channel change determination algorithms only determines that a communication channel should be changed when the information related to one or more communication channel'"'"'s availability for communications by one or more of the wireless devices indicates that a new channel improves a communication performance parameter for the communication network more than a threshold amount or percentage.

10. The method of claim 9, wherein the performance parameter is a number of the wireless devices in the communication network which have communication capability over the communication channel greater than a minimum threshold.

11. The method of claim 9, wherein the performance parameter is a total data throughput for the communication network.

12. The method of claim 9, wherein the performance parameter is one of:

(a) a total number of hops required to communicate data from each one of the wireless devices to each other wireless device over the communication network;

(b) a maximum number of hops required to communicate data from any one of the wireless devices to any other wireless device over the communication network; and

(c) a maximum number of hops required to communicate data from any one of the wireless devices to a network management device over the communication network.

13. The method of claim 1, wherein at least one of the communication channel change determination algorithms determines whether to change one or more communication channels over which the wireless devices communicate based on whether the communication network includes any legacy wireless devices which operate with limited capabilities as compared with other wireless devices in the communication network.

14. The method of claim 1, wherein at least one of the communication channel change determination algorithms determines whether to change one or more communication channels based on whether a current communication channel satisfies a data latency requirement for wireless devices of the communication network.

15. The method of claim 14, wherein the data latency requirement is determined based on one or more application types existing in the communication network selected among a plurality of application types supported by the communication network.

16. The method of claim 15, wherein the one or more application types are selected by a user via a user interface associated with the communication network.

17. In a communication network having a plurality of wireless devices which communicate over a specified number of communication channels in a defined portion of a frequency spectrum, and a device for determining whether to change one or more communication channels over, the device for determining whether to change one or more communication channels comprising:

a micro-processor to receive an indication of a selected operating mode for the communication network among a plurality of available operating modes for respective data traffic, each operating mode having associated therewith a different communication channel change determination algorithm uniquely corresponding to that operating mode, receive information related to one or more communication channel'"'"'s availability for communications by one or more of the wireless devices and determine whether to change one or more communication channels over which the wireless devices communicate by executing the communication channel change determination algorithm corresponding to the selected operating mode, using the received information related to one or more communication channel'"'"'s availability for communications by one or more of the wireless devices.