| Patents for H04J 4 - Combined time-division and frequency-division multiplex systems (1,442) |
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| 10/30/2012 | US8300540 Systems and methods for dynamic network channel modification |
| 10/30/2012 | CA2689527C Automatically switching a tdma radio affiliated with a fdma site to a tdma site |
| 10/30/2012 | CA2511014C System and method for communicating digital information using time-and-frequency-bounded base functions |
| 10/16/2012 | US8290371 OCDM-based all optical multi-level security |
| 10/16/2012 | CA2484373C Multi-carrier communication with time division multiplexing and carrier-selective loading |
| 10/11/2012 | US20120257639 Communications in Beacon-Enabled Networks |
| 10/11/2012 | US20120257551 Duplex Communication Method, Terminal Scheduling Method and System |
| 10/11/2012 | DE102011001911A1 Verfahren für einen Sender für ein Mehrkanal-Kommunikationssystem zur Versendung Echtzeit-sensitiver Daten D A method for a transmitter for a multi-channel communication system for sending real-time-sensitive data D |
| 09/27/2012 | US20120243465 Technique for Enabling Multiple Terminals to Simulate Traffic of a Single Virtual Terminal |
| 09/25/2012 | US8274984 Radio network controller |
| 09/13/2012 | US20120230320 Transmission apparatus, transmission method, reception apparatus and reception method |
| 09/11/2012 | US8265025 Radio transmission device and radio transmission method |
| 09/05/2012 | CN101371543B A method for transmitting and receiving data using a plurality of carriers |
| 09/04/2012 | US8260136 Polarization beam splitter |
| 09/04/2012 | US8260134 Synchronized code division multiplexing communication method and synchronized code division multiplexing communication system |
| 09/04/2012 | US8259668 Communication systems |
| 09/04/2012 | CA2460613C Multi-carrier frequency-division multiplexing (fdm) architecture for high speed digital service in local networks |
| 08/30/2012 | US20120218922 Methods and apparatus for employing different capabilities for different duplexing modes |
| 08/23/2012 | US20120213233 Frame and data pattern structure for multi-carrier systems |
| 08/22/2012 | EP1451686B1 Disk driver cluster management of time shift buffer with file allocation table structure |
| 08/16/2012 | US20120207082 System and Method for Control Channel Search Space Location Indication for a Backhaul Link |
| 08/02/2012 | US20120195328 Transmission apparatus, transmission method, reception apparatus, and reception method |
| 07/19/2012 | US20120182985 Communication method, and transmitting apparatus and receiving apparatus using that communication method |
| 07/10/2012 | US8218969 OFDM transponder interface with variable bit transfer rate in optical communications systems |
| 07/10/2012 | US8218497 Synchronization in an uplink spatial division multiple access mode of a WiMAX wireless communication system |
| 06/27/2012 | EP2151076B1 System and method for scheduling and transferring data through a transmission system |
| 06/19/2012 | US8204072 Method and devices for determining available frequency ranges |
| 06/14/2012 | US20120147848 Generating and allocating time-frequency mapping pattern in a communication system |
| 06/14/2012 | US20120147759 Apparatus and methods for providing a communication quality feedback of an end-to-end communication path |
| 06/12/2012 | US8200089 Optical pulse time spreading apparatus and optical multiplex transmitting system with multiplexed channels and S/N ratio increased |
| 05/29/2012 | US8189454 Multi-band OFDM communications system |
| 05/23/2012 | EP1436928B1 Mapping of bit streams into mpeg frames |
| 05/15/2012 | US8179843 Distributed scheduling method for multi-antenna wireless system |
| 05/15/2012 | US8179816 System and method for high resolution indoor positioning using a narrowband RF transceiver |
| 05/10/2012 | US20120113878 Time shifting of co-channel data transmissions to reduce co-channel interference |
| 05/01/2012 | US8171495 Queue dispatch using deferred acknowledgement |
| 05/01/2012 | US8170484 Synchronized UWB piconets for SOP (simultaneously operating piconet) performance |
| 04/26/2012 | US20120099607 Method and devices for transmitting and receiving multi-carrier symbols |
| 04/03/2012 | US8150262 Optical communications network and intensity adjustment method for optical communications network |
| 04/03/2012 | US8150259 Passive optical network system and optical signal receiving method thereof |
| 04/03/2012 | US8149879 Method and apparatus for data transfer using a time division multiple frequency scheme supplemented with polarity modulation |
| 04/03/2012 | US8149780 Multiplexing scheme in a communication system |
| 03/29/2012 | DE102009003884B4 Multiplexer Multiplexer |
| 03/21/2012 | CN1929361B Transmission apparatus |
| 03/20/2012 | US8139950 Passive optical network system, optical line terminator and, communication method of passive optical network system |
| 03/13/2012 | US8135279 OFDM direct detection using a balanced receiver |
| 03/13/2012 | US8135039 Method and apparatus for allocating radio resource in communication system |
| 03/06/2012 | US8130780 Method and apparatus for assigning resources in a wireless system with multiple regions |
| 03/06/2012 | US8130739 Methods and systems for frequency and time division access |
| 03/01/2012 | US20120051457 Methods and systems for orthogonal frequency division multiplexing (ofdm) multiple zone partitioning |
| 02/28/2012 | US8126328 Communication apparatus and signal transmitting method |
| 02/28/2012 | US8125952 Synchronious multi-channel transmissions in wireless local area networks |
| 02/14/2012 | US8116260 Simulcasting MIMO communication system |
| 02/09/2012 | WO2012016547A1 Hybrid orthogonal frequency division multiplexing time domain multiplexing passive optical network |
| 01/26/2012 | US20120020302 Method and Apparatus for Generating Time-Frequency Patterns for Reference Signal in an OFDM Wireless Communication System |
| 01/12/2012 | US20120008590 Ranging channel structures and methods |
| 01/11/2012 | EP1690350B1 Method for frequency and time division access |
| 01/10/2012 | US8094672 Method of packet mode digital communication over a transmission channel shared by a plurality of users |
| 01/10/2012 | US8094653 Software parameterizable control blocks for use in physical layer processing |
| 01/03/2012 | US8090039 Wireless transceiver and wireless transmitting/receiving method and program thereof |
| 12/15/2011 | US20110305157 Method and Apparatus for Preamble Reduction |
| 12/14/2011 | CN102282781A 在无线电通信系统中使用mbsfn子帧的信号传输方法 Use mbsfn subframe in a radio communication system signal transmission method |
| 11/24/2011 | US20110286426 Control data transmission over a data channel by a controlling base station |
| 11/23/2011 | CN102257751A Method and apparatus for data transmission using a data frame |
| 11/22/2011 | US8064341 Temporal-spatial burst switching |
| 11/08/2011 | US8054740 Method for encoding data blocks |
| 11/03/2011 | US20110268131 Communication system allowing node identification |
| 11/03/2011 | US20110267997 Signal transmission method using mbsfn subframe in radio communication system |
| 11/02/2011 | EP1436952B1 Allocation of bit streams for communication over multi-carrier frequency-division multiplexing (fdm) |
| 11/01/2011 | US8050184 Systems and methods for network channel allocation |
| 10/27/2011 | US20110261782 Radio communication system, radio base station, and threshold setting method |
| 10/27/2011 | US20110261728 Channel reservation in time division duplex wireless communication system |
| 10/25/2011 | US8045989 Method and apparatus for reducing the number of times of measurements for cell reselection in mobile communication terminal |
| 10/20/2011 | US20110255451 Method and apparatus for data transmission using a data frame |
| 10/19/2011 | EP2378675A2 Signal transmission method using mbsfn subframe in radio communication system |
| 10/18/2011 | US8041217 System and method for managing wavelength drift in an optical network |
| 10/18/2011 | US8040847 Channel estimation feedback in an orthogonal frequency division multiplexing system or the like |
| 10/05/2011 | CN101099319B Frequency division communication system |
| 09/27/2011 | US8027355 Resource allocation method and system |
| 09/21/2011 | EP1106026B1 Multiple frequency allocation radio frequency device and method |
| 09/20/2011 | US8023531 Spread code allocating method, despreading method, transmitting device, receiving device, communicating device, wireless base station device, and mobile terminal device |
| 09/08/2011 | US20110216781 Method and Apparatus for Asynchronous Orthogonal Frequency Division Multiple Access |
| 09/06/2011 | US8014368 Gateway for interconnecting ad-hoc network and infrastructure network, and methods for discovering and registering service provider using gateway |
| 09/01/2011 | US20110211595 Method and apparatus to facilitate an early decoding of signals in relay backhaul links |
| 08/30/2011 | US8009549 Carrier allocation method in multi cell orthogonal frequency division multiple access system |
| 08/24/2011 | CN102164108A Multi-carrier communication with time division multiplexing and carrier-selective loading |
| 08/17/2011 | CN101090509B Terminal off-line direct calling method for digital centreless communication system |
| 08/16/2011 | US8000296 Base station and mobile station |
| 08/03/2011 | CN101079859B Frequency domain dispatching method and device |
| 08/02/2011 | US7991288 Optical code division multiple access data storage encryption and retrieval |
| 07/26/2011 | US7986708 Local area network of serial intelligent cells |
| 07/19/2011 | US7983561 Optical pulse time spreading device |
| 07/19/2011 | CA2460772C Ethernet over multi-carrier frequency-division multiplexing (fdm) |
| 07/12/2011 | US7978724 Systems and methods of allocating radio resources |
| 07/12/2011 | US7978641 Hybrid TDM/FDM uplink for spot-beam communication system |
| 07/07/2011 | DE102010025959A1 System for e.g. optimizing conformity condition in parameter of service security in power supply network, has actuators designed as network controlling element that is assigned to sub-network, and controller co-operating with actuator |
| 07/05/2011 | US7974257 Communications system using frame structure for different wireless communications protocols and related methods |
| 06/22/2011 | CN102106164A Multimedia broadcast multicast service (MBMS) utilizing spatial multiplexing |
| 06/16/2011 | US20110142002 Method of resource allocation in a communication system |
| 06/16/2011 | US20110141875 Combined echo and crosstalk cancellation |