IP Library Granted Patent US 7,961,673
Granted Patent B2
US 7,961,673 · App. 12/360,240 · Granted Jun 14, 2011

System and method for clustering wireless devices in a wireless network

Assignee: Symbol Technologies, Inc.
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Quick Facts
Patent No.
US 7,961,673
App. No.
12/360,240
Granted
Jun 14, 2011
Kind
B2
Abstract

Described are a system and method for clustering wireless devices in a wireless network. The system comprises a wireless access point and a plurality of wireless computing units grouped into a cluster as a function of a predetermined parameter. The cluster includes a cluster head unit and at least one cluster member unit. The at least one cluster member unit utilizes a first power level when wirelessly communicating with the cluster head unit, and the cluster head unit utilizes a second power level when communicating with the AP.

Claims (19)

1. A method of operating wireless computing units in a wireless network system having a wireless access point (AP), the method comprising:

grouping a plurality of wireless computing units into a cluster, the plurality of wireless computing units including a first wireless computing unit having the largest amount of data to transmit relative to the plurality of wireless computing units, and a second wireless computing unit having the second-largest amount of data to transmit relative to the plurality of wireless computing units;

designating the first wireless computing unit as a cluster head unit;

designating the second wireless computing unit and any remaining ones of the plurality of wireless computing units as cluster member units;

transmitting data from the first wireless computing unit to the AP for a first predetermined time proportional to the amount of data to be transmitted by the first wireless computing unit;

thereafter, re-designating the second wireless computing unit as the cluster head unit;

re-designating the first wireless computing unit and any remaining ones of the plurality of wireless computing units as cluster member units; and

transmitting data from the second wireless computing unit to the AP for a second predetermined time proportional to the amount of data to be transmitted by the second wireless computing unit.

2. The method of claim 1 , wherein:

the plurality of wireless computing units includes a third wireless computing unit having the third-largest amount of data to transmit relative to the plurality of wireless computing units; and

the method further comprises:

after transmitting data from the second wireless computing unit to the AP for the second predetermined time, re-designating the third wireless computing unit as the cluster head unit;

re-designating the second wireless computing unit and any remaining ones of the plurality of wireless computing units as cluster member units; and

transmitting data from the third wireless computing unit to the AP for a third predetermined time proportional to the amount of data to be transmitted by the third wireless computing unit.

3. The method of claim 1 , wherein:

cluster member units send high priority data directly to the AP using a first power level; and

cluster member units send low priority data to the cluster head unit using a second power level.

4. The method of claim 3 , wherein the first power level is a maximum transmit power level.

5. The method of claim 3 , wherein the high priority data is sensitive to latency, relative to the low priority data.

Assignments (14)
RELEASE OF PATENT AND TRADEMARK SECURITY INTEREST AT REEL/FRAME NO. 46050/0546 Recorded Jul 30, 2026
From: BANK OF MONTREAL, AS AGENT
To: EXTREME NETWORKS, INC.
Reel/Frame 076081/0088 →
SECURITY INTEREST Recorded Jul 29, 2026
From: EXTREME NETWORKS, INC.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 076078/0590 →
AMENDED SECURITY AGREEMENT Recorded Aug 18, 2023
From: EXTREME NETWORKS, INC.; AEROHIVE NETWORKS, INC.
To: BANK OF MONTREAL
Reel/Frame 064782/0971 →
RELEASE OF SECURITY INTEREST Recorded May 1, 2018
From: SILICON VALLEY BANK
To: EXTREME NETWORKS, INC.
Reel/Frame 046051/0775 →
SECURITY INTEREST Recorded May 1, 2018
From: EXTREME NETWORKS, INC.
To: BANK OF MONTREAL
Reel/Frame 046050/0546 →
THIRD AMENDED AND RESTATED PATENT AND TRADEMARK SECURITY AGREEMENT Recorded Oct 31, 2017
From: EXTREME NETWORKS, INC.
To: SILICON VALLEY BANK
Reel/Frame 044639/0300 →
SECOND AMENDED AND RESTATED PATENT AND TRADEMARK SECURITY AGREEMENT Recorded Jul 14, 2017
From: EXTREME NETWORKS, INC.
To: SILICON VALLEY BANK
Reel/Frame 043200/0614 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 8, 2016
From: SYMBOL TECHNOLOGIES, LLC
To: EXTREME NETWORKS, INC.
Reel/Frame 040579/0410 →
AMENDED AND RESTATED PATENT AND TRADEMARK SECURITY AGREEMENT Recorded Oct 31, 2016
From: EXTREME NETWORKS, INC.
To: SILICON VALLEY BANK
Reel/Frame 040521/0762 →
RELEASE OF SECURITY INTEREST Recorded Aug 17, 2015
From: MORGAN STANLEY SENIOR FUNDING, INC.
To: SYMBOL TECHNOLOGIES, INC.
Reel/Frame 036371/0738 →
CHANGE OF NAME Recorded Jul 8, 2015
From: SYMBOL TECHNOLOGIES, INC.
To: SYMBOL TECHNOLOGIES, LLC
Reel/Frame 036083/0640 →
SECURITY AGREEMENT Recorded Oct 31, 2014
From: ZIH CORP.; LASER BAND, LLC; ZEBRA ENTERPRISE SOLUTIONS CORP.; SYMBOL TECHNOLOGIES, INC.
To: MORGAN STANLEY SENIOR FUNDING, INC. AS THE COLLATERAL AGENT
Reel/Frame 034114/0270 →
CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE ADDRESS PREVIOUSLY RECORDED ON REEL 026107 FRAME 0520. ASSIGNOR(S) HEREBY CONFIRMS THE CORRECT ASSIGNEE ADDRESS TO BE: ONE SYMBOL PLAZA, HOLTSVILLE, NY 11742. Recorded Jul 7, 2014
From: JAIN, AMIT
To: SYMBOL TECHNOLOGIES, INC.
Reel/Frame 033278/0731 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 11, 2011
From: JAIN, AMIT
To: SYMBOL TECHNOLOGIES, INC.
Reel/Frame 026107/0520 →
Continuity (2)
Continuation 11328567 · Jan 9, 2006
Related Publication 20090129321A1 · May 21, 2009