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Class Information
Number: 370/203
Name: Multiplex communications > Generalized orthogonal or special mathematical techniques
Description: Subject matter wherein (a) a multiplexed channel is uniquely identified and separated from other multiplexed channels by members of a pair of mathematical functions having a sum of products or having an integral that is zero or sometimes one under specified conditions, or (b) particular mathematical processes are used to achieve multiplexing techniques.

Sub-classes under this class:

Class Number Class Name Patents
370/210 Fourier transform 1,143
370/211 Level multiplex 52
370/208 Particular set of orthogonal functions 2,105
370/204 Plural diverse modulation techniques 479
370/206 Quadrature carriers 592

Patents under this class:

Patent Number Title Of Patent Date Issued
8711671 Extension of physical downlink control channel coverage Apr. 29, 2014
8711670 Base station apparatus and method for use in mobile communication system Apr. 29, 2014
8705956 Carrier frequency offset (CFO) estimator with low complexity and high accuracy for orthogonal-frequency-division-multiplexing (CO-OFDM) systems Apr. 22, 2014
8705653 Method of generating reference signal in wireless communication system Apr. 22, 2014
8705473 Base station apparatus, mobile terminal apparatus and communication control method Apr. 22, 2014
8705469 Method of sending a data signal via a plurality of transmitter entities Apr. 22, 2014
8705420 Mobile station and radio base station Apr. 22, 2014
8705411 MUROS modulation using linear baseband combinations with linear gaussian pulse shaping for two users on one timeslot used by non-DARP and DARP remote stations Apr. 22, 2014
8705389 Quality control scheme for multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems Apr. 22, 2014
8693602 Method and device for mono- and multi-antenna reception for Alamouti-type links 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
8693432 Method for frequency division duplex communications Apr. 8, 2014
8693414 Multi-user transmission method, multiple input multiple output transmission system using the same, scheduling method and access point using the same for scheduling simultaneous transmission Apr. 8, 2014
8693405 SDMA resource management Apr. 8, 2014
8693305 Method and apparatus for detecting OFDM signals in the presence of frequency orthogonal OFDM interferers Apr. 8, 2014
8693304 Offsetting beacon positions in a time division duplex communication system Apr. 8, 2014
8687716 Digital signal transmission and reception Apr. 1, 2014
8687525 Co-channel communication methods, systems, and devices Apr. 1, 2014
8681905 MIMO detector Mar. 25, 2014
8681852 Communication device capable of channel estimation and method thereof Mar. 25, 2014
8681766 Resource remapping and regrouping in a wireless communication system Mar. 25, 2014
8681734 Method for transmitting a ranging signal in a wireless communication system Mar. 25, 2014
8675749 Channel estimation in OFDM transmission system and method Mar. 18, 2014
8675744 Channel tracking in an orthogonal frequency-division multiplexing system Mar. 18, 2014
8675693 Iterative decoding with configurable number of iterations Mar. 18, 2014
8675574 OFDMA communication system and communication method Mar. 18, 2014
8675481 Method and apparatus for transmitting reference signal in multi-antenna system Mar. 18, 2014
8666387 Apparatus and method for determining transmit signal parameters using real-time channel measurements Mar. 4, 2014
8665987 Space-time/space-frequency coding for multi-site and multi-beam transmission Mar. 4, 2014
8665984 Method and system for precoding data Mar. 4, 2014
8665975 Method for receiving data in multi input multi output Mar. 4, 2014
8665859 Apparatus and method for clock synchronization in a multi-point OFDM/DMT digital communications system Mar. 4, 2014
8665691 Frame and data pattern structure for multi-carrier systems Mar. 4, 2014
8655281 Method and apparatus for selecting object terminal in a multi-BS MIMO system Feb. 18, 2014
8654623 Scrambling under an extended physical-layer cell identity space Feb. 18, 2014
8649333 Radio communication system, radio transmission apparatus, and resource allocation method Feb. 11, 2014
8649252 Method and apparatus for determining a precoding vector for precoding data to be transmitted to a wireless device in a wireless communication system Feb. 11, 2014
8649251 Multi-user multiplexing method and transmission device Feb. 11, 2014
8644128 Multi-clock PHY preamble design and detection Feb. 4, 2014
8638815 Method and apparatus for logical channel prioritization for uplink carrier aggregation Jan. 28, 2014
8638652 Signal transmission with fixed subcarrier spacing within OFDMA communication systems Jan. 28, 2014
8634484 Method for suppression of OFDM energy spectral density for minimization of out of band emission or utilization of fractured spectrum Jan. 21, 2014
8634365 System and method for allocating transmission resources Jan. 21, 2014
8630161 Method and system for multi-antenna preambles for wireless networks preserving backward compatibility Jan. 14, 2014
8625710 Resource block mapping for cross-carrier assignments Jan. 7, 2014
8625684 Apparatus and method for estimating symbol timing offset in a wireless communication system Jan. 7, 2014
8625568 Method of mapping physical resource to logical resource in wireless communication system Jan. 7, 2014
8625561 Cyclic shift delay techniques for WLAN multi-radio devices Jan. 7, 2014
8625403 Method and apparatus for resource mapping and code division multiplexing Jan. 7, 2014
8619908 Wireless ranging system and related methods Dec. 31, 2013

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