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Class Information
Number: 370/209
Name: Multiplex communications > Generalized orthogonal or special mathematical techniques > Particular set of orthogonal functions > Walsh functions
Description: Subject matter wherein the set of orthogonal functions consist of Walsh functions.

Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
8711957 Apparatus and method for transmitting and receiving data Apr. 29, 2014
8693602 Method and device for mono- and multi-antenna reception for Alamouti-type links Apr. 8, 2014
8694017 Method and apparatus for interference management in a wireless communication system Apr. 8, 2014
8687751 Multiple-input multiple-output receivers using successive interference cancellation based on cyclic redundancy check Apr. 1, 2014
8676137 Mobile wireless terminal, a method of measuring signal strength of a received signal, and a method of searching for a base station Mar. 18, 2014
8670297 Apparatus and method for allocating code resources to uplink ACK/NACK channels in a cellular wireless communication system Mar. 11, 2014
8649451 MC-CDMA multiplexing in an orthogonal uplink Feb. 11, 2014
8649456 System and method for channel information feedback in a wireless communications system Feb. 11, 2014
8638877 Methods, apparatuses and systems for selective transmission of traffic data using orthogonal sequences Jan. 28, 2014
8638870 MC-CDMA multiplexing in an orthogonal uplink Jan. 28, 2014
8634490 Techniques for detection of signals in multiple-input multiple-output communication systems Jan. 21, 2014
8619543 Method and apparatus for walsh space assignment in a communication system Dec. 31, 2013
8619544 Apparatus and method for facilitating transmit diversity for communications Dec. 31, 2013
8599677 Method and system for multi-user detection using two-stage processing Dec. 3, 2013
8576738 Method, apparatus and system for sharing a subchannel Nov. 5, 2013
8576754 TDD base station for code group synchronization Nov. 5, 2013
8565166 User apparatus, base station apparatus and method Oct. 22, 2013
8520499 Method, apparatus, and system for transmitting and receiving information of an uncoded channel in an orthogonal frequency division multiplexing system Aug. 27, 2013
8514815 Training signals for selecting antennas and beams in MIMO wireless LANs Aug. 20, 2013
8514908 Integrated circuit for response signal spreading Aug. 20, 2013
8509285 Base station apparatus and response signal receiving method Aug. 13, 2013
8498195 HARQ retransmission scheme for at least two transmit antennas Jul. 30, 2013
8488439 Blind carrier frequency offset estimator based on single-OFDM-symbol PN ranging code in multi-user OFDMA uplink Jul. 16, 2013
8472309 Using CDMA to send uplink signals in WLANs Jun. 25, 2013
8463255 Method and apparatus for a spectrally compliant cellular communication system Jun. 11, 2013
8457178 Frequency offset estimator Jun. 4, 2013
8451791 Allocation of uplink reference signals in a mobile communication system May. 28, 2013
8427936 Multiple-access hybrid OFDM-CDMA system Apr. 23, 2013
8428018 Method of transmitting reference signals in a wireless communication having multiple antennas Apr. 23, 2013
8428177 Method and apparatus for multiple input multiple output (MIMO) transmit beamforming Apr. 23, 2013
8416677 Systems and methods for high rate OFDM communications using first and second cyclic prefix lengths and first and second pilot tones Apr. 9, 2013
8412125 Wireless communication system with transmit diversity designs Apr. 2, 2013
8406695 Joint interference cancellation of pilot, overhead and traffic channels Mar. 26, 2013
8385470 Coding a signal with a shuffled-Hadamard function Feb. 26, 2013
8385296 Multi-carrier CDMA transmitting device and method using block-based multi-carrier spreading Feb. 26, 2013
8363538 Orthogonal data link, and associated methods Jan. 29, 2013
8363757 Method and apparatus for eliminating the effects of frequency offsets in a digital communication system Jan. 29, 2013
8355732 Method of dimensioning a transport network for a radio access network of a mobile radio network Jan. 15, 2013
8305875 Method for allocating frequency domain spread code in base station of MC-CDMA communication system Nov. 6, 2012
8300627 Forwarding one or more preferences during call forwarding Oct. 30, 2012
8295155 Apparatus and method for allocating code resources to uplink ACK/NACK channels in a cellular wireless communication system Oct. 23, 2012
8295375 Transmitting apparatus and method, and receiving apparatus and method Oct. 23, 2012
8284652 Enhanced forward link transmission Oct. 9, 2012
8254365 Method for maintaining timing across discontinuous activity gaps for a non-real time data interface Aug. 28, 2012
8248912 Shared channel structure, ARQ systems and methods Aug. 21, 2012
8244183 Concurrent sync channel searching Aug. 14, 2012
8223818 Integrated circuit for response signal spreading Jul. 17, 2012
8224368 Method and apparatus for controlling transmission power in a wireless network Jul. 17, 2012
8213485 High rate CDMA wireless communication system using variable sized channel codes Jul. 3, 2012
8199708 Allocation of uplink reference signals in a mobile communication system Jun. 12, 2012

1 2 3 4 5 6 7 8

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