Method and apparatus for affiliating a wireless device with a wireless local area network

• US 8,284,739 B2
• Filed: 02/28/2003
• Issued: 10/09/2012
• Est. Priority Date: 05/24/2001
• Status: Active Grant

• Current Assignee: Rovi Guides, Inc. (Adeia Inc.)
• Original Assignee: VIXS Systems Incorporated (Pixelworks Incorporated)
• Inventors: Girardeau, Jr., James Ward, Yuen, William, Doyle, James
• Primary Examiner(s): Harper, Kevin C
• Application Number:
  US10/376,400
• Publication Number:
  US 20040125777A1
• Time in Patent Office: 3,511 Days
• Field of Search: 370/338, 370343-344, 370/431
• US Class Current: 370/338
• CPC Class Codes: H04W 48/18 Selecting a network or a communication service
• CPC Class Codes: H04W 8/245 from a network towards a terminal

Abstract

The present invention provides a system and method for affiliating a wireless device with a wireless local area network (WLAN). An embodiment of the method of this invention comprises establishing, at a control node of the WLAN, access frequency(s) for affiliation with the WLAN. The control node periodically provides a beacon frame on the access frequency(s) that indicates the timing of affiliation with the WLAN. The wireless device determines the access frequency(s) for affiliating with the WLAN and the timing of affiliation with the WLAN based on the beacon frame. The wireless device provides self identification information via the access frequency during the beacon frame. This allows the control node to determine the access privileges of the wireless device based on the identification information. Finally, the control node affiliates the wireless device with an initial access channel from a set of access channels in accordance with the access privileges.

Claims

1. A method for affiliating a wireless device with a wireless local area network (WLAN), the method comprises:

receiving, by a control node, identification information of a wireless device via at least one access frequency in the WLAN;

determining, by the control node, authenticity of the wireless device based on the identification information provided by the wireless device;

selecting, by the control node, an initial access channel from a set of access channels based on data rate requirements of the wireless device and load on the set of access channels, wherein each channel in the set of access channels includes point coordination function (PCF) access time and distributed coordination function (DCF) access time and wherein selecting by the control node an initial access channel from a set of access channels includes;

determining by the control node data rate requirements of the wireless device and quality of service (QoS) priority;

assigning the wireless device to an initial access channel whose transmission rate sum is lowest in the set of access channels; and

allocating point coordination function (PCF) access time on the initial access channel evenly between the wireless device and other wireless devices allocated to the initial access channel having a same QoS priority; and

affiliating, by the control node, the wireless device with the initial access channel from the set of access channels when authenticity is determined.

2. The method for affiliating a wireless device with a wireless local area network (WLAN), the method comprises:

receiving, by a control node, identification information of a wireless device via at least one access frequency in the WLAN;

determining, by the control node, authenticity of the wireless device based on the identification information provided by the wireless device;

selecting, by the control node, an initial access channel from a set of access channels based on data rate requirements of the wireless device and load on the set of access channels, wherein each channel in the set of access channels includes point coordination function (PCF) access time and distributed coordination function (DCF) access time and wherein selecting by the control node an initial access channel from a set of access channels includes;

determining by the control node data rate requirements of the wireless device; and

assigning the wireless device to an initial access channel whose transmission rate sum is lowest in the set of access channels;

reserving a percentage of the point coordination function (PCF) access time on the initial access channel to the wireless device based on quality of service (QoS) priority of the wireless device; and

allocating remaining point coordination function (PCF) access time on the initial access channel evenly between other wireless devices allocated to the initial access channel having lower QoS priority; and

affiliating, by the control node, the wireless device with the initial access channel from the set of access channels when authenticity is determined.

3. A method for affiliating a wireless device with a wireless local area network (WLAN), the method comprises:

receiving, by a control node, identification information of a wireless device via at least one access frequency in the WLAN;

determining, by the control node, authenticity of the wireless device based on the identification information provided by the wireless device;

selecting, by the control node, an initial access channel from a set of access channels based on data rate requirements of the wireless device and load on the set of access channels, wherein each channel in the set of access channels includes point coordination function (PCF) access time and distributed coordination function (DCF) access time and wherein selecting by the control node an initial access channel from the set of access channels includes;

determining by the control node data rate requirements of the wireless device;

assigning the wireless device to an initial access channel whose transmission rate sum is lowest in the set of access channels; and

allocating point coordination function (PCF) access time on the initial access channel to the wireless device based on quality of service priority of the wireless device;

affiliating, by the control node, the wireless device with the initial access channel from the set of access channels when authenticity is determined; and

reallocating by the control node the wireless device to a second access channel, from the set of access channels, different from the initial access channel in response to data rate requirements of the wireless device and load on the set of access channels.