US Patent No: 6,473,467
Number of patents in Portfolio can not be more than 2000
Method and apparatus for measuring reporting channel state information in a high efficiency, high performance communications system
Stats
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Oct 29, 2002
Issued date -
Mar 30, 2000
filing date -
09/539,224
serial no -
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Abstract
Channel state information (CSI) can be used by a communications system to precondition transmissions between transmitter units and receiver units. In one aspect of the invention, disjoint sub-channel sets are assigned to transmit antennas located at a transmitter unit. Pilot symbols are generated and transmitted on a subset of the disjoint sub-channels. Upon receipt of the transmitted pilot symbols, the receiver units determine the CSI for the disjoint sub-channels that carried pilot symbols. These CSI values are reported to the transmitter unit, which will use these CSI values to generate CSI estimates for the disjoint sub-channels that did not carry pilot symbols. The amount of information necessary to report CSI on the reverse link can be further minimized through compression techniques and resource allocation techniques.
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First Claim
Related Publications
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
| Patent Owner | Address | Total Patents |
|---|---|---|
| QUALCOMM INCORPORATED | SAN DIEGO, CA | 7516 |
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Inventor(s)
| Inventor Name | Address | # of filed Patents | Total Citations |
|---|---|---|---|
| Jalali, Ahmad | San Diego, CA | 113 | 2021 |
| Wallace, Mark | Bedford, MA | 75 | 2499 |
| Walton, Jay R | Westford, MA | 54 | 2171 |
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Patent Citation Ranking
Forward Cites
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 8,199,842 Time-domain transmit and receive processing with channel EIGEN-mode decomposition for MIMO systems | 0 | 2008 | |
| 8,098,568 Signaling method in an OFDM multiple access system | 5 | 2009 | |
| 8,098,569 Signaling method in an OFDM multiple access system | 2 | 2009 | |
| 7,949,060 Method and apparatus for utilizing channel state information in a wireless communication system | 0 | 2009 | |
| 8,073,072 Multiple-input multiple-output system and method | 0 | 2009 | |
| 8,194,776 Multiplexing of real time services and non-real time services for OFDM systems | 1 | 2010 | |
| 7,990,843 Signaling method in an OFDM multiple access system | 7 | 2010 | |
| 7,990,844 Signaling method in an OFDM multiple access system | 6 | 2010 | |
| 7,924,699 Signaling method in an OFDM multiple access system | 7 | 2010 | |
| 7,916,624 Signaling method in an OFDM multiple access system | 7 | 2010 | |
| 8,325,844 Data transmission with spatial spreading in a MIMO communication system | 0 | 2010 | |
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| 7,149,254 Transmit signal preprocessing based on transmit antennae correlations for multiple antennae systems | 32 | 2001 | |
| 7,336,719 System and method for transmit diversity base upon transmission channel delay spread | 7 | 2001 | |
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| 7,394,858 Systems and methods for adaptive bit loading in a multiple antenna orthogonal frequency division multiplexed communication system | 7 | 2003 | |
| 7,769,097 Methods and apparatus to control transmission of a multicarrier wireless communication channel through multiple antennas | 2 | 2003 | |
| 8,289,836 Apparatus and associated methods to introduce diversity in a multicarrier communication channel | 0 | 2004 | |
| 7,570,696 Multiple input multiple output multicarrier communication system and methods with quantized beamforming feedback | 13 | 2004 | |
| 7,397,804 System and method for synchronizing data transmission from multiple wireless base transceiver stations to a subscriber unit | 5 | 2004 | |
| 7,649,861 Multiple antenna multicarrier communication system and method with reduced mobile-station processing | 1 | 2004 | |
| 7,822,128 Multiple antenna multicarrier transmitter and method for adaptive beamforming with transmit-power normalization | 5 | 2004 | |
| 7,542,515 Training symbol format for adaptively power loaded MIMO | 6 | 2004 | |
| 7,586,873 Wireless communications system that supports multiple modes of operation | 3 | 2005 | |
| 7,305,054 Robust multiple chain receiver | 2 | 2005 | |
| 7,830,977 Providing CQI feedback with common code rate to a transmitter station | 3 | 2006 | |
| 7,738,579 Systems and methods for adaptive bit loading in a multiple antenna orthogonal frequency division multiplexed communication system | 3 | 2008 | |
| 7,885,346 MIMO transmitter and method for transmitting a group of sequential OFDM symbols in accordance with an IEEE 802.16 communication standard | 2 | 2009 | |
| 7,822,135 MIMO transmitter and method for transmitting an OFDM symbol in accordance with an IEEE 802.11 communication standard over a plurality of spatial channels | 2 | 2009 | |
| 8,345,637 Wireless communications system that supports multiple modes of operation | 0 | 2009 | |
| 8,428,037 Wireless communications system that supports multiple modes of operation | 0 | 2009 | |
| 8,126,077 MIMO transmitter and methods for transmitting OFDM symbols with cyclic-delay diversity | 0 | 2009 | |
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| 8,396,147 MIMO transmitter for transmitting a group of sequential OFDM symbols using a plurality of antennas | 0 | 2010 | |
| 7,953,171 Training symbol format for adaptively power loaded MIMO | 0 | 2010 | |
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| 8,374,650 Methods for optimal collaborative MIMO-SDMA | 0 | 2006 | |
| 8,073,486 Methods for opportunistic multi-user beamforming in collaborative MIMO-SDMA | 1 | 2006 | |
| 8,085,814 Frame structure, system and method for OFDM communications | 1 | 2006 | |
| 8,018,975 Method and system for performing synchronization in OFDM systems | 0 | 2006 | |
| 7,912,012 Method and system for performing cell selection for OFDM communications | 0 | 2006 | |
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| 8,073,069 Multi-user MIMO-SDMA for finite rate feedback systems | 9 | 2007 | |
| 8,020,075 Channel quality index feedback reduction for broadband systems | 2 | 2007 | |
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| 7,403,570 Preamble design for multiple input--multiple output (MIMO), orthogonal frequency division multiplexing (OFDM) system | 17 | 2007 | |
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| 8,339,935 Adaptive time diversity and spatial diversity for OFDM | 0 | 2011 | |
| 8,437,422 Multi-user MIMO-SDMA for finite rate feedback systems | 0 | 2011 | |
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| 7,085,290 Mobile ad hoc network (MANET) providing connectivity enhancement features and related methods | 15 | 2003 | |
| 7,079,552 Mobile ad hoc network (MANET) with quality-of-service (QoS) protocol hierarchy and related methods | 15 | 2003 | |
| 7,068,605 Mobile ad hoc network (MANET) providing interference reduction features and related methods | 8 | 2003 | |
| 7,280,840 Receiving apparatus, transmitting apparatus, and reception method | 5 | 2003 | |
| 7,206,606 Wireless communication including diversity transmission and reception | 18 | 2003 | |
| 7,903,749 System and method for applying frequency domain spreading to multi-carrier communications signals | 2 | 2006 | |
| 7,860,147 Method of communicating and associated transmitter using coded orthogonal frequency division multiplexing (COFDM) | 4 | 2006 | |
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| 7,751,488 System and method for communicating data using symbol-based randomized orthogonal frequency division multiplexing (OFDM) | 4 | 2006 | |
| 7,649,951 System and method for communicating data using symbol-based randomized orthogonal frequency division multiplexing (OFDM) with applied frequency domain spreading | 5 | 2006 | |
| 8,285,332 Communication method, transmission apparatus and reception apparatus | 0 | 2006 | |
| 8,064,945 Base station, communication system including base station, and transmission method | 0 | 2007 | |
| 8,274,921 System and method for communicating data using efficient fast fourier transform (FFT) for orthogonal frequency division multiplexing (OFDM) | 0 | 2008 | |
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| 7,031,669 Techniques for correcting for phase and amplitude offsets in a MIMO radio device | 31 | 2003 | |
| 7,194,237 System and method for multiple-input multiple-output (MIMO) radio communication | 48 | 2003 | |
| 6,965,762 System and method for antenna diversity using joint maximal ratio combining | 39 | 2003 | |
| 7,573,945 System and method for joint maximal ratio combining using time-domain based signal processing | 5 | 2003 | |
| 7,636,554 Multiple-input multiple-output radio transceiver | 9 | 2004 | |
| 7,099,678 System and method for transmit weight computation for vector beamforming radio communication | 34 | 2004 | |
| 7,079,870 Compensation techniques for group delay effects in transmit beamforming radio communication | 11 | 2004 | |
| 7,245,881 System and method for antenna diversity using equal power joint maximal ratio combining | 2 | 2004 | |
| 7,570,921 Systems and methods for improving range for multicast wireless communication | 2 | 2004 | |
| 7,236,750 Techniques for correcting for phase and amplitude offsets in a MIMO radio device | 11 | 2004 | |
| 6,993,299 Efficiency of power amplifiers in devices using transmit beamforming | 6 | 2004 | |
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| 7,308,287 Compensation techniques for group delay effects in transmit beamforming radio communication | 1 | 2006 | |
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| 7,899,414 Control of power amplifiers in devices using transmit beamforming | 1 | 2009 | |
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| 7,215,934 Iterative multi-stage detection technique for a diversity receiver having multiple antenna elements | 3 | 2003 | |
| 7,391,832 System and method for channel bonding in multiple antenna communication systems | 6 | 2004 | |
| 7,502,408 RF transceiver having adaptive modulation | 1 | 2005 | |
| 7,822,395 Iterative multi-stage detection technique for a diversity receiver having multiple antenna elements | 0 | 2007 | |
| 7,433,659 Iterative multi-stage detection technique for a diversity receiver having multiple antenna elements | 2 | 2007 | |
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| 8,027,650 Iterative multi-stage detection technique for a diversity receiver having multiple antenna elements | 0 | 2008 | |
| 7,917,108 Iterative multi-stage detection technique for a diversity receiver having multiple antenna elements | 0 | 2008 | |
| 8,284,651 Preamble formats for MIMO wireless communications | 0 | 2011 | |
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| 7,974,371 Communication method and radio communication apparatus | 1 | 2002 | |
| 7,688,901 Transmission method, transmission apparatus, and reception apparatus | 1 | 2002 | |
| 7,778,339 Transmission of a plurality of sub-carriers in an OFDM signal | 1 | 2007 | |
| 8,238,226 OFDM communication apparatus | 0 | 2009 | |
| 8,363,632 Radio transmitting apparatus, radio receiving apparatus, and radio transmission method | 0 | 2009 | |
| 8,155,224 Transmission method, transmission apparatus, and reception apparatus | 0 | 2010 | |
| 8,229,026 Processor and processing method for signal transmission | 0 | 2010 | |
| 8,428,182 Communication method and radio communication apparatus | 0 | 2011 | |
| 8,428,040 Reception apparatus and reception method for setting a format per divided band | 0 | 2011 | |
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| 7,885,354 System and method for enhancing near vertical incidence skywave (“NVIS”) communication using space-time coding | 0 | 2004 | |
| 7,418,053 System and method for distributed input-distributed output wireless communications | 10 | 2004 | |
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| 7,636,381 System and method for distributed input-distributed output wireless communications | 5 | 2007 | |
| 7,633,994 System and method for distributed input-distributed output wireless communications | 3 | 2007 | |
| 7,599,420 System and method for distributed input distributed output wireless communications | 8 | 2007 | |
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| 8,428,162 System and method for distributed input distributed output wireless communications | 0 | 2009 | |
| 8,170,081 System and method for adjusting DIDO interference cancellation based on signal strength measurements | 0 | 2010 | |
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| 7,715,876 Transmitting and receiving method, and radio apparatus utilizing the same | 4 | 2005 | |
| 7,715,877 Transmitting and receiving method, and radio apparatus utilizing the same | 6 | 2005 | |
| 7,738,924 Transmitting and receiving method, and radio apparatus utilizing the same | 6 | 2006 | |
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| 7,715,879 Transmitting and receiving method, and radio apparatus utilizing the same | 2 | 2006 | |
| 7,715,880 Transmitting and receiving method, and radio apparatus utilizing the same | 1 | 2006 | |
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|||
| 6,870,808 Channel allocation in broadband orthogonal frequency-division multiple-access/space-division multiple-access networks | 63 | 2000 | |
| 6,947,748 OFDMA with adaptive subcarrier-cluster configuration and selective loading | 69 | 2000 | |
| 7,146,172 Multi-carrier communications with adaptive cluster configuration and switching | 23 | 2001 | |
| 6,904,283 Multi-carrier communications with group-based subcarrier allocation | 73 | 2001 | |
| 7,355,962 Multi-carrier communications with group-based subcarrier allocation | 6 | 2005 | |
| 7,454,212 OFDMA with adaptive subcarrier-cluster configuration and selective loading | 3 | 2005 | |
| 7,379,742 Multi-carrier communications with adaptive cluster configuration and switching | 6 | 2006 | |
| 7,573,850 Multi-carrier communications with group-based subcarrier allocation | 3 | 2007 | |
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| 7,355,960 Channel estimation apparatus and method for adaptive channel allocation in an orthogonal frequency division multiple access system | 8 | 2004 | |
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| 7,593,357 Transmit processing using receiver functions | 0 | 2002 | |
| 8,270,512 Method and apparatus for subcarrier and antenna selection in MIMO-OFDM system | 0 | 2005 | |
| 7,773,562 Soft and softer handover in time division duplex code division multiple access (TDD-CDMA) networks | 1 | 2005 | |
| 7,391,805 Method and apparatus for transferring signals in a wireless communication system | 0 | 2007 | |
| 7,613,226 Method and apparatus for transferring signals in a wireless communication system | 0 | 2008 | |
| 8,073,067 Method and apparatus for transferring signals in a wireless communication system | 0 | 2009 | |
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| 8,131,218 Methods and apparatus for wirelessly communicating signals that include embedded synchronization/pilot sequences | 0 | 2008 | |
| 8,358,644 Methods and apparatus for generating synchronization/pilot sequences for embedding in wireless signals | 0 | 2008 | |
| 8,098,713 Methods and apparatus for generating and communicating wireless signals having pilot signals with variable pilot signal parameters | 8 | 2008 | |
| 8,355,466 Cancelling non-linear power amplifier induced distortion from a received signal by moving incorrectly estimated constellation points | 0 | 2009 | |
| 8,331,420 Methods and apparatus for multiple-antenna communication of wireless signals with embedded pilot signals | 0 | 2009 | |
| 8,379,752 Methods and apparatus for multiple-antenna communication of wireless signals with embedded synchronization/pilot sequences | 0 | 2010 | |
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| 7,403,576 Systems and methods for receiving data in a wireless communication network | 3 | 2004 | |
| 7,406,647 Systems and methods for forward error correction in a wireless communication network | 4 | 2004 | |
| 7,391,815 Systems and methods to recover bandwidth in a communication system | 2 | 2004 | |
| 7,450,637 Ultra-wideband communication apparatus and methods | 1 | 2004 | |
| 7,483,483 Ultra-wideband communication apparatus and methods | 8 | 2004 | |
| 7,929,596 Ultra-wideband communication apparatus and methods | 0 | 2007 | |
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| 7,715,358 OFDMA with adaptive subcarrier-cluster configuration and selective loading | 4 | 2007 | |
| 7,650,152 Multi-carrier communications with adaptive cluster configuration and switching | 1 | 2007 | |
| 7,489,934 OFDMA with adaptive subcarrier-cluster configuration and selective loading | 3 | 2007 | |
| 7,933,244 Multi-carrier communications with group-based subcarrier allocation | 2 | 2009 | |
| 8,036,199 OFDMA with adaptive subcarrier-cluster configuration and selective loading | 0 | 2010 | |
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| 7,809,343 Multi-channel receiver with improved AGC | 4 | 2007 | |
| 7,769,357 Multi-channel receiver with improved AGC | 1 | 2007 | |
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| 7,058,367 Rate-adaptive methods for communicating over multiple input/multiple output wireless systems | 33 | 2003 | |
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| 7,773,685 Transmitting and receiving methods | 11 | 2003 | |
| 7,424,061 Data transfer method and system | 2 | 2003 | |
| 7,936,760 Method, communications network arrangement, communications network server, terminal, and software means for selecting and changing operating modes for packet-switched voice connection | 0 | 2003 | |
| 7,542,734 Data transmission scheme in wireless communication system | 2 | 2005 | |
|
|
|||
| 7,310,304 Estimating channel parameters in multi-input, multi-output (MIMO) systems | 21 | 2002 | |
| 7,088,782 Time and frequency synchronization in multi-input, multi-output (MIMO) systems | 34 | 2002 | |
| 7,889,819 Methods and systems for sampling frequency offset detection, correction and control for MIMO OFDM systems | 0 | 2003 | |
| 7,706,458 Time and frequency synchronization in Multi-Input, Multi-Output (MIMO) systems | 4 | 2006 | |
|
|
|||
| 7,386,058 Transceiver apparatus and transceiving method | 15 | 2005 | |
| 8,116,241 Wireless communication system and transmission device | 0 | 2005 | |
| 8,345,641 Radio communication system using multi-antenna transmission technique, and multi-user scheduler therefor | 0 | 2008 | |
|
|
|||
| 7,529,305 Combination of space-time coding and spatial multiplexing, and the use of orthogonal transformation in space-time coding | 2 | 2000 | |
| 6,980,600 Receiver system for Multiple-Transmit, Multiple-Receive (MTMR) wireless communications systems | 9 | 2000 | |
| 7,508,798 Virtual mimo communication system | 4 | 2002 | |
|
|
|||
| 7,948,960 Radio transmission device | 2 | 2005 | |
| 8,422,478 Radio transmission device | 0 | 2010 | |
| 8,416,757 Radio transmission device | 0 | 2011 | |
|
|
|||
| 8,098,754 Midamble allocations for MIMO transmissions | 0 | 2005 | |
| 8,090,053 Midamble allocations for MIMO transmissions | 0 | 2010 | |
| 8,085,864 Midamble allocations for MIMO transmissions | 0 | 2010 | |
|
|
|||
| 7,221,645 Pilot pattern design for a STTD scheme in an OFDM system | 19 | 2001 | |
| 7,664,009 Pilot pattern design for a STTD scheme in an OFDM system | 2 | 2006 | |
| 7,948,863 Pilot pattern design for a STTD scheme in an OFDM system | 1 | 2008 | |
|
|
|||
| 6,842,487 Cyclic delay diversity for mitigating intersymbol interference in OFDM systems | 80 | 2000 | |
| 7,224,942 Communications system employing non-polluting pilot codes | 7 | 2001 | |
| 7,120,199 Link adaptation for MIMO transmission schemes | 40 | 2002 | |
|
|
|||
| 7,929,631 Multiple space time transmit diversity communication system with selected complex conjugate inputs | 0 | 2002 | |
| 6,917,311 Orthogonal preamble encoder, method of encoding orthogonal preambles and multiple-input, multiple-output communication system employing the same | 16 | 2003 | |
| 7,660,229 Pilot design and channel estimation | 10 | 2006 | |
|
|
|||
| 7,180,956 Method and apparatus for applying overlaid perturbation vectors for gradient feedback transmit antenna array adaptation | 11 | 2002 | |
| 7,433,416 Method and apparatus for generating transmit adaptive antenna weights with nulling using binary gradient feedback | 3 | 2002 | |
| 7,236,538 Method and apparatus for improving transmit antenna weight tracking using channel correlations in a wireless communication system | 10 | 2002 | |
|
|
|||
| 7,978,773 Multi-channel receiver with improved AGC | 2 | 2006 | |
| 8,391,384 Multi-channel receiver with improved AGC | 0 | 2011 | |
|
|
|||
| 7,369,487 Clustered OFDM with channel estimation | 2 | 2004 | |
| 7,792,500 Rate-adaptive multiple input/multiple output (MIMO) systems | 2 | 2008 | |
|
|
|||
| 7,352,688 High data rate wireless bridging | 15 | 2002 | |
| 8,374,105 High data rate wireless bridging | 0 | 2008 | |
|
|
|||
| 6,754,253 Receiver architecture for transmit diversity in CDMA system | 16 | 2000 | |
| 6,996,380 Communication system employing transmit macro-diversity | 20 | 2001 | |
|
|
|||
| 6,678,263 Method and constructions for space-time codes for PSK constellations for spatial diversity in multiple-element antenna systems | 49 | 1999 | |
| 6,898,248 System employing threaded space-time architecture for transporting symbols and receivers for multi-user detection and decoding of symbols | 34 | 2000 | |
|
|
|||
| 7,035,354 CDMA multi-user detection with a real symbol constellation | 14 | 2001 | |
| 7,161,975 Enhancing CDMA multiuser detection by constraining soft decisions | 0 | 2002 | |
|
|
|||
| 7,116,702 Signal processing method and apparatus in CDMA radio communication system | 2 | 2002 | |
| 7,751,352 Control signal transmitting method in multi-antenna system | 3 | 2004 | |
|
|
|||
| 7,366,249 Method for transmitting optimally interleaved data in a MIMO telecommunication system | 5 | 2004 | |
| 7,376,203 Method for transmitting uniformly distributed data in a MIMO telecommunication system | 1 | 2005 | |
|
|
|||
| 7,646,747 Channel constructing method and base station using the method | 4 | 2001 | |
| 7,899,029 Mobile communication system, user equipment in mobile communication system, control program thereof, and synchronization establishment determination method in mobile communication system | 0 | 2007 | |
|
|
|||
| 8,412,720 Methods and apparatus for querying a relational data store using schema-less queries | 0 | 2007 | |
| 7,831,604 Methods and apparatus for enterprise application integration | 2 | 2007 | |
|
|
|||
| 8,335,704 Methods and apparatus for work management and routing | 0 | 2005 | |
| 8,250,525 Proactive performance management for multi-user enterprise software systems | 1 | 2007 | |
|
|
|||
| 7,342,875 Space-time coded OFDM system for MMDS applications | 7 | 2001 | |
| 8,374,272 Space-time coded OFDM system for MMDS applications | 0 | 2008 | |
|
|
|||
| 7,209,511 Interference cancellation in a CDMA receiving system | 7 | 2001 | |
| 7,197,282 Mobile station loop-back signal processing | 23 | 2002 | |
|
|
|||
| 7,970,064 Transmitter, method for generating a plurality of long preambles and communication device | 0 | 2005 | |
|
|
|||
| 8,165,246 Training sequence for low latency LMS implementation | 0 | 2000 | |
|
|
|||
| 7,310,537 Communication on multiple beams between stations | 1 | 2003 | |
|
|
|||
| 7,124,369 Multi-layer path explorer | 3 | 2002 | |
|
|
|||
| 7,173,990 Joint equalization, soft-demapping and phase error correction in wireless system with receive diversity | 12 | 2002 | |
|
|
|||
| 7,627,050 Adaptive transmitting and receiving device and method in wireless communication system using frequency division duplexing | 2 | 2004 | |
|
|
|||
| 7,379,446 Enhanced beacon signaling method and apparatus | 2 | 2004 | |
|
|
|||
| 8,031,796 Device, method and computer program for transmitting an information signal comprising several transmit signals | 0 | 2006 | |
|
|
|||
| 7,668,266 Crest factor reduction in OFDM using blind selected pilot tone modulation | 1 | 2006 | |
|
|
|||
| 7,688,797 Method and transmission device for transmission of data in a multi-carrier system | 5 | 2003 | |
|
|
|||
| 7,751,368 Providing CQI feedback to a transmitter station in a closed-loop MIMO system | 8 | 2006 | |
|
|
|||
| 7,385,617 Methods for multi-user broadband wireless channel estimation | 14 | 2003 | |
|
|
|||
| 8,184,726 Method and apparatus for multi-rate control in a multi-channel communication system | 1 | 2008 | |
|
|
|||
| 7,848,296 Apparatus and method for generating channel information and apparatus and method for adaptive transmission employing the same | 0 | 2006 | |
|
|
|||
| 8,054,899 Terminal apparatus, base station and communication method | 0 | 2008 | |
|
|
|||
| 7,606,316 MIMO-OFDM preamble for channel estimation | 2 | 2003 | |
|
|
|||
| 7,158,494 Multi-mode communications transmitter | 26 | 2001 | |
|
|
|||
| 7,640,239 Methods and apparatus for real-time business visibility using persistent schema-less data storage | 0 | 2005 | |
|
|
|||
| 7,656,969 Dual payload and adaptive modulation | 1 | 2006 | |
|
|
|||
| 8,265,675 MIMO wireless communication system and method by a plurality of base stations and mobile station | 0 | 2008 | |
|
|
|||
| 6,778,839 Method and device for transmission power selection and bit rate selection for channels with open loop power control | 12 | 2001 | |
|
|
|||
| 6,968,154 Avoidance of interference between items of electrical apparatus | 0 | 2002 | |
|
|
|||
| 8,045,935 High data rate transmitter and receiver | 1 | 2005 | |
|
|
|||
| 7,630,349 Antenna division multiple access | 3 | 2005 | |
|
|
|||
| 7,224,744 Space-time multipath coding schemes for wireless communication systems | 8 | 2003 | |
|
|
|||
| 7,280,469 Efficient implementation of large size FFT | 0 | 2001 | |
|
|
|||
| 8,380,141 Radio apparatus | 0 | 2011 | |
|
|
|||
| 6,996,375 Transmit diversity and separating multiple loopback signals | 17 | 2003 | |
|
|
|||
| 7,110,350 Wireless LAN compatible multi-input multi-output system | 20 | 2004 | |
|
|
|||
| 7,782,981 Signal processing apparatus and method | 0 | 2004 | |
|
|
|||
| 8,446,892 Channel structures for a quasi-orthogonal multiple-access communication system | 0 | 2005 | |
| 8,441,918 System access and synchronization methods for MIMO OFDM communications systems and physical layer packet and preamble design | 0 | 2011 | |
| 8,446,973 Transmission and reception apparatus and method | 0 | 2012 | |
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Apr 29, 2014 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |