System and method for improved synchronization in a wireless network

• US 20030137970A1
• Filed: 01/22/2003
• Published: 07/24/2003
• Est. Priority Date: 01/22/2002
• Status: Abandoned Application

• Current Assignee: Freescale Semiconductor, Inc. (NXP Semiconductors NV)
• Original Assignee: Freescale Semiconductor, Inc. (NXP Semiconductors NV)
• Inventors: Odman, Knut T.
• Application Number:
  US10/347,751
• Publication Number:
  US 20030137970A1
• Time in Patent Office: Days
• US Class Current: 370/350
• CPC Class Codes: H04L 1/16 in which the return channel carries supervisory signals, e.g. repetition request signals
• CPC Class Codes: H04L 2001/0092 Error control systems characterised by the topology of the transmission link
• CPC Class Codes: H04L 67/04 specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
• CPC Class Codes: H04L 69/28 Timers or timing mechanisms used in protocols
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

A method is provided for synchronizing a network coordinator with a remote device in a wireless network. First the remote device sends a request to the network coordinator that includes request parameters. Then the network coordinator sends a reply to the remote device that includes reply parameters. These reply parameters include a part of the request parameters to identify the remote device. The remote device then sends an acknowledgement to the network coordinator to indicate successful receipt of the reply. Finally, the network coordinator sends a beacon to the remote device that includes beacon parameters. The beacon parameters include at least a portion of the reply parameters to identify the remote device. In an alternate implementation, the acknowledgement from the remote device can be replaced with a second request having second request parameters that include at least a portion of the reply parameters.

Claims

1. A method for synchronizing a network coordinator with a remote device in a wireless network, comprising:

sending a request from the remote device to the network coordinator, the request including request parameters;

sending a reply from the network coordinator to the remote device, the reply including reply parameters that respond to the request parameters;

sending an acknowledgement from the remote device to the network coordinator, the acknowledgement indicating successful receipt of the reply; and

sending a beacon from the network coordinator to the remote device, the beacon including beacon parameters, the beacon parameters including at least a portion of the reply parameters.

2. A method for synchronizing a network coordinator with a remote device in a wireless network, as recited in claim 1, wherein the request is an association request.

3. A method for synchronizing a network coordinator with a remote device in a wireless network, as recited in claim 1, wherein the request parameters include a device identifier for the remote device, the device identifier distinguishing the network device from other devices.

4. A method for synchronizing a network coordinator with a remote device in a wireless network, as recited in claim 3, wherein the device identifier is a multiple-bit address assigned by a manufacturer to the remote device, which is unique among similar devices.

5. A method for synchronizing a network coordinator with a remote device in a wireless network, as recited in claim 3, wherein the reply parameters include the device identifier for the remote device and a network identifier for the remote device, the network identifier being assigned by the network coordinator to distinguish the remote device from other network devices.

6. A method for synchronizing a network coordinator with a remote device in a wireless network, as recited in claim 5, wherein the network identifier is a multiple-bit association identifier that is unique within the network.

7. A method for synchronizing a network coordinator with a remote device in a wireless network, as recited in claim 5, wherein the network identifier is smaller in size than the device identifier.

8. A method for synchronizing a network coordinator with a remote device in a wireless network, as recited in claim 5, wherein the beacon parameters include the device identifier for the remote device and the network identifier for the remote device.

9. A method for synchronizing a network coordinator with a remote device in a wireless network, comprising:

sending a first request from the remote device to the network coordinator, the first request including first request parameters;

sending a reply from the network coordinator to the remote device, the reply including reply parameters that respond to the request parameters;

sending a second request from the remote device to the network coordinator, the second request including second request parameters, the second request parameters including at least part of the reply parameters; and

sending a beacon from the network coordinator to the remote device, the beacon including beacon parameters, the beacon parameters including at least a portion of the reply parameters.

10. A method for synchronizing a network coordinator with a remote device in a wireless network, as recited in claim 9, wherein the first and second requests are association requests.

11. A method for synchronizing a network coordinator with a remote device in a wireless network, as recited in claim 9, wherein the first request parameters include a device identifier for the remote device, the device identifier distinguishing the network device from other devices.

12. A method for synchronizing a network coordinator with a remote device in a wireless network, as recited in claim 11, wherein the device identifier is a multiple-bit address assigned by a manufacturer to the remote device, which is unique among similar devices.

13. A method for synchronizing a network coordinator with a remote device in a wireless network, as recited in claim 11, wherein the reply parameters include the device identifier for the remote device and a network identifier for the remote device, the network identifier being assigned by the network coordinator to distinguish the remote device from other network devices.

14. A method for synchronizing a network coordinator with a remote device in a wireless network, as recited in claim 13, wherein the network identifier is a multiple-bit association identifier that is unique within the network.

15. A method for synchronizing a network coordinator with a remote device in a wireless network, as recited in claim 13, wherein the second request parameters include at least the device identifier for the remote device.

16. A method for synchronizing a network coordinator with a remote device in a wireless network, as recited in claim 15, wherein the second request parameters include at least the network identifier for the remote device.

17. A method for synchronizing a network coordinator with a remote device in a wireless network, as recited in claim 13, wherein the network identifier is smaller in size than the device identifier.

18. A method for synchronizing a network coordinator with a remote device in a wireless network, as recited in claim 13, wherein the beacon parameters include the device identifier for the remote device and the network identifier for the remote device.