Techniques for enabling compatibility of ultra wideband devices

• US 9,066,318 B2
• Filed: 07/08/2009
• Issued: 06/23/2015
• Est. Priority Date: 07/30/2008
• Status: Expired due to Fees

• Current Assignee: Koninklijke Philips Electronics N.V. (Koninklijke Philips N.V.)
• Original Assignee: Koninklijke Philips N.V.
• Inventors: Zhai, Hongqiang, Chen, Richard, Chou, Chun-Ting
• Primary Examiner(s): Cho, Un C
• Assistant Examiner(s): Roudani, Oussama
• Application Number:
  US13/056,473
• Publication Number:
  US 20110176580A1
• Time in Patent Office: 2,176 Days
• Field of Search: 370/338, 370/332, 370/337, 709/220, 348/732, 455/434, 455/454
• US Class Current: 1/1
• CPC Class Codes: H04W 72/02 Selection of wireless resources by user or terminal
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

A method (200) for enabling compatibility of wireless devices having different regulation settings. The method includes upon initialization of a wireless device, scanning a predefined common channel (S220); forming a WiNet service set (WSS) by wireless devices communicating over the predefined common channel (S230); upon switching of the wireless devices in the WSS to a channel other than the predefined common channel, checking if a new wireless device attempts to join the WSS (S240, S250); and adding the new wireless device to the WSS if such attempt was detected (S290).

Claims

1. A method for enabling compatibility of communications between two or more wireless devices in a wireless personal area network (WPAN), wherein each of the two or more wireless devices has a regulation setting associated with a corresponding region, said regulation setting defining a frequency band within which the wireless device from the corresponding region is configured to operate, the method comprising:

upon initialization of one wireless device of the two or more wireless devices that has a regulation setting different from another wireless device of the two or more wireless devices, scanning a common channel defined as available for initiating communication among wireless devices from different regions according to regulations of the different regions;

forming a network between the one wireless device with the remaining devices of the two or more wireless devices communicating over the common channel, wherein the wireless devices in the network belong to the WPAN;

selecting a WiNet service set (WSS) channel based, in part, on the regulation settings of the two or more wireless devices in order to form a WSS among the two or more wireless devices;

upon switching of the two or more wireless devices to the WSS channel, checking if a new wireless device attempts to join the WSS; and

adding the new wireless device to the WSS if such attempt was detected, wherein the new wireless device is configured with regulation settings that are different from regulation settings of at least one wireless device in the WSS to enable communication compatibility of wireless devices configured with different regulation settings.

2. The method of claim 1, wherein the common channel is a channel in an available regulated band group, wherein the available regulated band group is a frequency band group on which wireless devices from a same region communicate with each other.

3. The method of claim 1, wherein forming the WSS further comprises:

exchanging regulation settings between the two or more wireless devices about frequency band groups allowed in the respective region of each said wireless device;

determining a set of allowable common channels based on the regulation settings of the two or more wireless devices; and

scanning the channels in the set of allowable common channels to detect one allowable common channel on which the two or more wireless devices can communicate; and

wherein the selecting further comprises establishing the WSS on the detected allowable common channel, wherein the detected allowable common channel is the WSS channel.

4. The method of claim 1, wherein the channels in the set of allowable common channels are scanned simultaneously.

5. The method of claim 4, wherein checking if the new wireless device attempts to join the WSS further comprises:

selecting one wireless device from the WSS to periodically transmit beacons in the common channel; and

listening to the common channel to detect a superframe transmitted by the new wireless device.

6. The method of claim 5, wherein adding the new device to the WSS further comprises:

exchanging the regulation settings between the new wireless device and the one wireless device transmitting the beacon in the common channel;

sending the regulation setting of the new wireless device to all wireless devices in the WSS; and

communicating information about the WSS to the new wireless device in order to add the new wireless device to the WSS when the wireless devices in the WSS and the new wireless device can communicate on the WSS channel.

7. The method of claim 6, further comprising:

scanning for a new common channel that the new wireless device and the wireless devices in the WSS can communicate on; and

upon detecting the new common channel, switching the new wireless device and the wireless devices to the detected new common channel, thereby forming a new WSS on a new WSS channel.

8. The method of claim 1, further comprising explicitly enabling blocked wireless devices to join a WSS, wherein a blocked wireless device is a device that was previously blocked from joining a WSS.

9. The method of claim 1, wherein the wireless devices in the WSS are at least ultra-wideband (UWB) devices operating in the WPAN, wherein the WPAN is a WiMedia network.

10. The method of claim 9, wherein each of the wireless devices manufactured in different regions can operate only in frequency band groups regulated for the respective region.

11. A non-transitory computer readable medium having stored thereon computer executable code, which, when executed, causes a processor or a computer to perform a method for enabling compatibility of communications between two or more wireless devices in a wireless personal area network (WPAN), wherein each of the two or more wireless devices has a regulation setting associated with a corresponding region, said regulation setting defining a frequency band within which the wireless device from the corresponding region is configured to operate, the method comprising:

upon initialization of one wireless device of the two or more wireless devices that has a regulation setting different from another wireless device of the two or more wireless devices, scanning a common channel defined as available for initiating communication among wireless devices from different regions according to regulations of the different regions;

forming a network between the one wireless device with the remaining devices of the two or more wireless devices communicating over the common channel, wherein the wireless devices in the network belong to the WPAN;

selecting a WiNet service set (WSS) channel selected based, in part, on the regulation settings of the two or more wireless devices in order to form a WSS among the two or more wireless devices;

upon switching of the two or more wireless devices to the WSS channel, checking if a new wireless device attempts to join the WSS; and

adding the new wireless device to the WSS if such attempt was detected, wherein the new wireless device is configured with regulation settings that are different from regulation settings of at least one wireless device in the WSS to enable communication compatibility of wireless devices configured with different regulation settings.

12. A first wireless device operable for enabling compatibility of communications between one or more other wireless devices in a distributed wireless personal area network (WPAN), wherein each wireless device has a regulation setting associated with a corresponding region, said regulation setting defining a frequency band within which the wireless device from the corresponding region is configured to operate, the first wireless device comprising:

a radio transceiver configured to receive and transmit radio signals over a wireless medium;

a processor; and

a memory for storing instructions that, when executed, configure the processor to;

scan, upon initialization of the first wireless device that has a regulation setting different from the one or more other wireless devices, a common channel defined as available for initiating communication among wireless devices from different regions according to regulations of the different regions;

form a network between the first wireless device with the one or more other wireless devices communicating over the common channel, wherein the wireless devices in the network belong to the WPAN;

select a WiNet service set (WSS) channel based, in part, on the regulation settings of the first wireless device and the one or more other wireless devices in order to form a WSS among the first wireless device and the one or more other wireless devices;

check, upon switching of the wireless devices to the WSS channel, if a new wireless device attempts to join the WSS; and

add the new wireless device to the WSS if such attempt was detected, wherein the new wireless device is configured with regulation settings that are different from regulation settings of at least one wireless device in the WSS to enable communication compatibility of wireless devices configured with different regulation settings.