IP Library Granted Patent US 8,717,981
Granted Patent B1
US 8,717,981 · App. 12/113,615 · Granted May 6, 2014

Priority allocation of contention resources

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Quick Facts
Patent No.
US 8,717,981
App. No.
12/113,615
Granted
May 6, 2014
Kind
B1
Abstract

A first set of uplink contention slots is allocated for use by a first set of devices. A second set of uplink contention slots is allocated for use by a second set of devices. The first set of uplink contention slots and the second set of uplink contention slots may or may not share contention slots. The first set of uplink contention slots is communicated to the first set of devices. The second set of uplink contention slots is communicated to the second set of devices.

Claims (24)

1. A method of allocating contention resources, comprising:

allocating by an access point a first set of uplink contention slots for use by standard subscriber wireless devices, wherein the first set of uplink contention slots comprises a first subset and a second subset;

allocating by the access point a second set of uplink contention slots for use by public safety wireless devices, wherein the second set of uplink contention slots comprises a first subset and a second subset and wherein the second set of uplink contention slots are non-overlapping with the first set of uplink contention slots;

communicating by the access point the first set of uplink contention slots to the standard subscriber wireless devices;

communicating by the access point the second set of uplink contention slots to the public safety wireless devices;

determining a number of public safety wireless devices registered with the access point;

determining a number of standard subscriber wireless devices registered with the access point;

determining a rate of bandwidth requests from the public safety wireless devices and a rate of bandwidth requests from the standard subscriber wireless devices;

re-allocating the first subset of the first set of uplink contention slots to the public safety wireless devices and the standard subscriber wireless devices when the number of public safety wireless devices registered with the access point increases and the rate of bandwidth requests from the public safety wireless devices increases, wherein the public safety wireless devices and the standard subscriber wireless devices share the first subset of the first set of uplink contention slots to request additional slot allocation;

re-allocating the first subset of the second set of uplink contention slots to the public safety wireless devices and the standard subscriber wireless devices when the number of standard subscriber wireless devices registered with the access point increases and the rate of bandwidth requests from the standard subscriber wireless devices increases, wherein the public safety wireless devices and the standard subscriber wireless devices share the first subset of the second set of uplink contention slots to request additional slot allocation;

communicating by the access point the re-allocated first subset of the first set of uplink contention slots to the public safety wireless devices and the standard subscriber wireless devices when the number of public safety wireless devices registered with the access point increases and the rate of bandwidth requests from the public safety wireless devices increases; and

communicating by the access point the re-allocated first subset of the second set of uplink contention slots to the public safety wireless devices and the standard subscriber wireless devices when the number of standard subscriber wireless devices registered with the access point increases and the rate of bandwidth requests from the standard subscriber wireless devices increases.

2. The method of claim 1 , further comprising:

granting by the access point a higher priority to a bandwidth request message from a public safety wireless device than to a bandwidth request message from a standard subscriber wireless device.

3. A method of allocating contention resources, comprising:

allocating at a first access point a set of first uplink contention slots for use by standard subscriber wireless devices, wherein the set of first uplink contention slots comprises a first subset and a second subset;

allocating at the first access point a set of second uplink contention slots for use by public safety wireless devices, wherein the set of second uplink contention slots comprises a first subset and a second subset and wherein the set of second uplink contention slots are non-overlapping with the first set of uplink contention slots;

communicating from the first access point the first set of uplink contention slots to the standard subscriber wireless devices;

communicating from the first access point the second set of uplink contention slots to the public safety wireless devices;

receiving a message from a second access point, wherein the message comprises an indication that the second access point re-allocated contention slots for use by public safety wireless devices based on a number of public safety devices registered with the second access point, a number of standard subscriber wireless devices registered with the second access point, a rate of bandwidth requests at the second access point from the public safety wireless devices registered with the second access point, and a rate of bandwidth requests at the second access point from the standard subscriber wireless devices registered with the second access node;

re-allocating the subset of the first uplink contention slots at the first access point based on the message from the second access point; and

communicating from the first access point the re-allocated first subset of the first uplink contention slots to the public safety wireless devices and the standard subscriber wireless devices, wherein the public safety wireless devices and the standard subscriber wireless devices share the first subset of the first uplink contention slots to request additional slot allocation.

4. The method of claim 3 , further comprising:

granting at the first access point a higher priority to a bandwidth request message from a public safety wireless device received within the re-allocated subset of the first uplink contention slots than to a bandwidth request message from a standard subscriber wireless device received within the re-allocated subset of the first uplink contention slots.

Assignments (12)
RELEASE OF SECURITY INTEREST Recorded Aug 23, 2022
From: DEUTSCHE BANK TRUST COMPANY AMERICAS
To: IBSV LLC; LAYER3 TV, LLC; PUSHSPRING, LLC; T-MOBILE CENTRAL LLC; T-MOBILE USA, INC.; ASSURANCE WIRELESS USA, L.P.; BOOST WORLDWIDE, LLC; CLEARWIRE COMMUNICATIONS LLC; CLEARWIRE IP HOLDINGS LLC; SPRINTCOM LLC; SPRINT COMMUNICATIONS COMPANY L.P.; SPRINT INTERNATIONAL INCORPORATED; SPRINT SPECTRUM LLC
Reel/Frame 062595/0001 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS Recorded Apr 3, 2020
From: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS SUCCESSOR BY MERGER TO WILMINGTON TRUST FSB
To: CLEARWIRE LEGACY LLC; CLEAR WIRELESS LLC
Reel/Frame 053182/0700 →
SECURITY AGREEMENT Recorded Apr 2, 2020
From: T-MOBILE USA, INC.; ISBV LLC; T-MOBILE CENTRAL LLC; LAYER3 TV, INC.; PUSHSPRING, INC.; BOOST WORLDWIDE, LLC; CLEARWIRE COMMUNICATIONS LLC; CLEARWIRE IP HOLDINGS LLC; CLEARWIRE LEGACY LLC; SPRINT COMMUNICATIONS COMPANY L.P.; SPRINT INTERNATIONAL INCORPORATED; SPRINT SPECTRUM L.P.; ASSURANCE WIRELESS USA, L.P.
To: DEUTSCHE BANK TRUST COMPANY AMERICAS
Reel/Frame 053182/0001 →
TERMINATION AND RELEASE OF FIRST PRIORITY AND JUNIOR PRIORITY SECURITY INTEREST IN PATENT RIGHTS Recorded Apr 1, 2020
From: DEUTSCHE BANK TRUST COMPANY AMERICAS
To: CLEARWIRE IP HOLDINGS LLC
Reel/Frame 052291/0439 →
GRANT OF FIRST PRIORITY AND JUNIOR PRIORITY SECURITY INTEREST IN PATENT RIGHTS Recorded Mar 3, 2017
From: CLEARWIRE IP HOLDINGS LLC
To: DEUTSCHE BANK TRUST COMPANY AMERICAS
Reel/Frame 041882/0875 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 27, 2011
From: CLEARWIRE COMMUNICATIONS LLC
To: CLEARWIRE IP HOLDINGS LLC
Reel/Frame 027134/0855 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 27, 2011
From: CLEAR WIRELESS LLC
To: CLEARWIRE COMMUNICATIONS LLC
Reel/Frame 027134/0837 →
SECURITY AGREEMENT Recorded Nov 30, 2009
From: CLEARWIRE LEGACY LLC; CLEAR WIRELESS LLC
To: WILMINGTON TRUST FSB, AS COLLATERAL AGENT
Reel/Frame 023574/0539 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENT RIGHTS Recorded Nov 24, 2009
From: MORGAN STANLEY & CO., INC., AS COLLATERAL AGENT
To: CLEAR WIRELESS LLC
Reel/Frame 023567/0236 →
SECURITY AGREEMENT Recorded Jun 11, 2009
From: CLEAR WIRELESS LLC
To: MORGAN STANLEY & CO., INC., AS COLLATERAL AGENT
Reel/Frame 022815/0429 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 30, 2009
From: SPRINT COMMUNICATIONS COMPANY L.P.
To: CLEAR WIRELESS LLC
Reel/Frame 022184/0889 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 1, 2008
From: VARMA, SUBIR; GEORGIOU, GEORGE A.; SATAPATHY, DURGA PRASAD
To: SPRINT COMMUNICATIONS COMPANY L.P.
Reel/Frame 020887/0987 →