Multi-carrier communications with adaptive cluster configuration and switching
DC CAFC
First Claim
Patent Images
1. A method for use in allocating subcarriers in an OFDMA system comprisingallocating at least one diversity cluster of subcarriers to a first subscriber;
- andallocating at least one coherence cluster to a second subscriber, such that communication with the first and second subscribers is able to occur by simultaneously using the at least one diversity cluster and the at least one coherence cluster, respectively.
9 Assignments
Litigations
0 Petitions
Accused Products
Abstract
A method and apparatus for allocating subcarriers in an orthogonal frequency division multiple access (OFDMA) system is described. In one embodiment, the method comprises allocating at least one diversity cluster of subcarriers to a first subscriber and allocating at least one coherence cluster to a second subscriber.
182 Citations
13 Claims
-
1. A method for use in allocating subcarriers in an OFDMA system comprising
allocating at least one diversity cluster of subcarriers to a first subscriber; - and
allocating at least one coherence cluster to a second subscriber, such that communication with the first and second subscribers is able to occur by simultaneously using the at least one diversity cluster and the at least one coherence cluster, respectively. - View Dependent Claims (2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13)
- and
-
8. The method defined in claim I further comprising updating allocation of clusters to the subscriber.
Specification
-
- Resources
Litigation Campaign Assessment
Thank you for your request. You will receive a custom alert email when the Litigation Campaign Assessment is available.
×
Litigation Data
-
Current AssigneeAdaptix, Inc. (Acacia Research Corporation)
-
Original AssigneeAdaptix, Inc. (Acacia Research Corporation)
-
InventorsZhang, Wenzhong, Li, Kemin, Li, Xiaodong, Liu, Hui
-
Primary Examiner(s)Beamer, Temica
-
Assistant Examiner(s)CONTEE, JOY KIMBERLY
-
Application NumberUS09/837,701Publication NumberTime in Patent Office2,058 DaysField of Search455/447, 455/450, 455/452.1, 455/452.2, 455/453, 310/203, 310/208, 310/343, 310/480, 310/205, 310/439, 310/210, 310/299, 310/347, 375/276US Class Current455/452.1CPC Class CodesH04B 17/336 Signal-to-interference rati...H04B 17/345 Interference values signal-...H04J 11/00 Orthogonal multiplex system...H04J 11/003 at the transmitter transmis...H04J 11/005 of intercell interferenceH04L 1/0003 by switching between differ...H04L 1/0005 applied to payload informationH04L 1/0009 by adapting the channel cod...H04L 1/0011 applied to payload informationH04L 1/0025 Transmission of mode-switch...H04L 1/0026 Transmission of channel qua...H04L 1/0079 Formats for control data H0...H04L 1/04 using frequency diversityH04L 25/0226 sounding signals per seH04L 25/0228 with direct estimation from...H04L 27/2601 Multicarrier modulation sys...H04L 27/2602 Signal structureH04L 47/125 by balancing the load, e.g....H04L 5/0007 the frequencies being ortho...H04L 5/0032 Distributed allocation, i.e...View All
