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Browse by Category: Main > Communications
Class Information
Number: 375/267
Name: Pulse or digital communications > Systems using alternating or pulsating current > Plural channels for transmission of a single pulse train > Diversity
Description: Subject matter where the two or more channels carrying the same message go from the transmitter to the receiver via different paths, frequencies, or times of transmission.










Patents under this class:

Patent Number Title Of Patent Date Issued
RE44867 Apparatus and methods for providing efficient space-time structures for preambles, pilots and data for multi-input, multi-output communications systems Apr. 29, 2014
8711991 Method and a channel estimating arrangement for performing channel estimation Apr. 29, 2014
8711987 Method and receiver for jointly decoding received communication signals using maximum likelihood detection Apr. 29, 2014
8711985 Multi user MIMO detection utilizing averaged spatial whitening Apr. 29, 2014
8711977 Method for transmitting a signal Apr. 29, 2014
8711971 Multiple input multiple output transceiver Apr. 29, 2014
8711970 Precoding codebooks for MIMO communication systems Apr. 29, 2014
8711969 Global codebook for coordinated multi-point processing Apr. 29, 2014
8711968 Method for providing information of access point selection Apr. 29, 2014
8711966 Wireless device with extendable antenna Apr. 29, 2014
8711965 Method and apparatus for optimizing transmission diversity Apr. 29, 2014
8711964 Method and apparatus for pre-scheduling in closed-loop MU-MIMO antenna system Apr. 29, 2014
8711963 Unified feedback frame for supporting a plurality of feedback modes and a multiple-input multiple-output (MIMO) communication system using the unified feedback frame Apr. 29, 2014
8711962 Method for generating multi-antenna signals Apr. 29, 2014
8711961 Communicating channel state information using predictive vector quantization Apr. 29, 2014
8711953 Method for transmitting a signal from a transmitter to a receiver in a power line communication network, transmitter, receiver, power line communication modem and power line communication syst Apr. 29, 2014
8711907 PMI feedback with codebook interpolation Apr. 29, 2014
8711898 Ultra-wideband communication system and method Apr. 29, 2014
8706040 Method for avoiding inter-cell interference in multi-cell environment using multiple codebooks Apr. 22, 2014
8705676 Method and apparatus for clock recovery in XDSL transceivers Apr. 22, 2014
8705660 Apparatuses and methods for data transmission and reception Apr. 22, 2014
8705651 Wireless communication system, wireless communication apparatus, and wireless communication method Apr. 22, 2014
8705650 Wireless communication system, wireless communication apparatus, and wireless communication method Apr. 22, 2014
8705649 Method and receiver structure for interference cancellation in co-ordinated multipoint systems Apr. 22, 2014
8705648 Diversity schemes for 2-D encoded data Apr. 22, 2014
8705647 Maximum-likelihood MIMO demodulation for frequency-selective channels Apr. 22, 2014
8705646 Matrix operations for communications channel Apr. 22, 2014
8705645 MIMO transmitter and method for transmitting OFDM symbols Apr. 22, 2014
8705644 Method for generating and transmitting a reference signal for uplink demodulation in a clustered DFT-spread OFDM transmission scheme Apr. 22, 2014
8705612 Method for generating downlink signal in downlink MIMO system Apr. 22, 2014
8705600 System and method of selecting a data detection technique for a MIMO system Apr. 22, 2014
8705590 Code generating apparatus, reference signal generating apparatus, and methods thereof Apr. 22, 2014
8705492 MIMO receiving apparatus and receiving method Apr. 22, 2014
8705451 Apparatus and method for switching MIMO modes in a wireless communication system Apr. 22, 2014
8705404 Method for transmitting and receiving signals using collaborative MIMO scheme Apr. 22, 2014
8705392 MU-MIMO-OFDMA multi-rank CQI and precoder signaling schemes Apr. 22, 2014
8705335 Packet processing systems and methods Apr. 22, 2014
RE44827 Training-based channel estimation for multiple-antennas Apr. 8, 2014
8693577 Multi-antenna communication systems utilizing RF-based and baseband signal weighting and combining Apr. 8, 2014
8693574 Method and apparatus for determining a precoding matrix for precoding symbols to be transmitted to a plurality of wireless devices Apr. 8, 2014
8693569 Methods and apparatus for dynamic wireless device coexistence Apr. 8, 2014
8693568 Method and apparatus for estimating channel using dedicated pilot signal in OFDM-based wireless communication system Apr. 8, 2014
8693567 Precoding method and apparatus in multiple input multiple output system Apr. 8, 2014
8693566 Methods and systems for combined cyclic delay diversity and precoding of radio signals Apr. 8, 2014
8693565 Method and device for transmitting and receiving signal in wireless communication system Apr. 8, 2014
8693564 Low overhead feedback scheme for codebook based closed-loop MIMO Apr. 8, 2014
8693563 Method of transmitting and receiving orthogonal frequency division multiplexing (OFDM) signal using multiple antennas, and transmitter and receiver thereof Apr. 8, 2014
8693559 Method and system for communication Apr. 8, 2014
8693558 Providing delimiters for low-overhead communication in a network Apr. 8, 2014
8693522 Pilot sending method and apparatus Apr. 8, 2014











 
 
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