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8170477 |
Robust wireless communication device
A wireless communication device includes a first receiver section and a second receiver section. The first receiver section receives a first probe signal from a first transceiver at time t1. The...
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8139682 |
Channel estimation of orthogonal frequency division multiplexed systems
Methods and apparatus, including computer program products, are provided for channel estimation. In one aspect, there is provided a receiver including a demodulator for decoding a signal including...
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8126408 |
Multi-mode wireless communication link
A communication system includes first and second transmitters, which are coupled to transmit respective first and second Radio Frequency (RF) signals carrying first and second data over a wireless...
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8059576 |
Signal repeater system
The present invention concerns analog signal repeater system solutions of the general kind. It concerns in particular stability with analog signal repeater systems.
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8055188 |
Relay system and data frame structure for the relay system
A structure of a data frame for transmitting data via a relay, and a transmission apparatus and a relay using the data frame are provided. The relay includes: a receiver to receive, from a...
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8027662 |
Parental monitoring via cell phones with media capture and location reporting
A method for obtaining media at a first communications device (e.g., that of a parent) from a wireless communications device (e.g., one being used by a child), includes steps of receiving a message...
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8000653 |
Method and system for selective equalization enablement based on modulation type
Aspects of a method and system for selective equalization enablement based on modulation type may be found in a method for processing a radio frequency (RF) signal that comprises receiving a...
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7995512 |
Method of transmitting data in cellular networks using cooperative relaying
A method of transmitting data packets in a mobile communication system using at least one relay station (RS) and using at least two frequency carriers is disclosed. More specifically, the method...
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7983698 |
Paging apparatus and method in a mobile communication system providing multimedia broadcast multicast service
A paging apparatus and method in a mobile communication system providing an MBMS (Multimedia Broadcast Multicast Service). In the mobile communication system, to page a UE for a first service...
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7966028 |
Wireless base station device and method for controlling wireless base station device
The throughput of communication is enhanced in a wireless base station device communicating with each of a plurality of terminal devices according to a modulation scheme selected from a plurality...
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7953367 |
System and method for efficient frequency use in a hybrid multi-spot satellite broadcasting system
System and method for use in a hybrid multispot satellite broadcasting system comprising at least one satellite (S; S1; S2) for multibeam broadcasting of beams in respective frequency bandwidths...
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7945254 |
Real-time mobile conferencing solution
A method of conferencing communication devices in a system having (i) a conference server, (ii) a voice interface unit (VIU), and (iii) at least one conference bridge, the method including, at a...
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7925208 |
Multi-spot-beam satellite system with broadcast and surge capacity capability
A payload design for a multi-spot-beam satellite communication system includes a plurality of uplink spot beam receivers and downlink spot beam transmitters, and a broadcast transmitting subsystem...
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7917285 |
Device, system and method for remotely entering, storing and sharing addresses for a positional information device
Devices, systems and methods for remotely entering, storing and sharing location addresses for a positional information device, e.g., a global positioning system (GPS) device, are provided. The...
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7904093 |
Method and apparatus for allocating a pilot signal adapted to the channel characteristics
A set of different pilot structures are designed for use in different environments and/or different user behaviours that are expected to occur in a cell. The radio conditions for a user are...
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7904050 |
Mixer apparatus having switchable local oscillator inputs
A mixer apparatus (60), such as an integrated circuit (IC) mixer is provided for improving the physical layout of devices containing mixers. The mixer includes a multiplier (62) with an input port...
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7881659 |
Radio frequency repeater
A radio frequency repeater equipment in a radio communication system is disclosed. An indoor space exists under a radio base station of the radio communication system, and a mobile terminal in the...
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7869588 |
System and method for providing particularized audible alerts
A system and method of generating at least two distinctive auditory alerts upon receiving a transmission or telephone call at a device is described. Data indicative of a first plurality of sounds...
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7865138 |
Method and system for a low-complexity multi-beam repeater
Aspects of a method and system for a low-complexity multi-beam repeater may include receiving one or more information signals at one or more receiver antennas, and receiving one or more local...
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7853294 |
Method and system of selecting antennas and equipment for use within a wireless communication system
A method and system of selecting antennas and/or equipment for use within a wireless communication system is disclosed. A cell site may have one antenna-arrangement shared between multiple groups...
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7826873 |
Contactless energy transmission converter
The present invention is an efficient method of transferring energy wirelessly and an apparatus which efficiently transfers energy wirelessly. A high transmission frequency is modulated by a lower...
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7774016 |
Satellite communications interoperability module and down-conversion method
A satellite communications interoperability module and method for frequency down-conversion. The module insertable in-line with an intra-facility link communicating a multiplexed signal between the...
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7747262 |
Paging apparatus and method in a mobile communication system providing multimedia broadcast multicast service
A paging apparatus and method in a mobile communication system providing an MBMS (Multimedia Broadcast Multicast Service). In the mobile communication system, to page a UE for a first service...
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7738836 |
System and method of operation for network overlay geolocation system with repeaters using AM Golay Hadamard signatures
A novel system and method for a network overlay geolocation system operating in a host wireless communication system with repeaters is disclosed. Embodiments of the novel system and method enable a...
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7715853 |
Terrestrial repeater system for use with craft-mounted base stations
A craft-mounted repeater system processes signal properties (e.g., signal strength) between terrestrial (ground-based) wireless networks and mobile users that are aboard crafts (e.g., airplanes...
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7630725 |
Paging apparatus and method in a mobile communication system providing multimedia broadcast multicast service
A paging apparatus and method in a mobile communication system providing an MBMS (Multimedia Broadcast Multicast Service). In the mobile communication system, to page a UE for a first service...
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7606353 |
Signal amplitude and clock signal frequency selection
In one embodiment, a method is provided. The method of this embodiment may include, in response, at least in part, to receipt at a first node of a request issued from a second node to change from...
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7599660 |
Base station apparatus and control method for controlling channel density
A base station apparatus is provided for adaptively controlling a maximal accommodation channel number per unit area (for example, the coverage area of a cell or sector) in accordance with a...
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7593384 |
Efficient channel quality reporting and link adaptation for multi-carrier broadband wireless communication
Multi-carrier broadband wireless communication can be supported by providing identification information that identifies a group of carrier frequencies that an intended recipient of a transmission...
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7574175 |
Method and system for selective equalization enablement based on modulation type
Aspects of a method and system for selective equalization enablement based on modulation type may be found in a method for processing a radio frequency (RF) signal that comprises receiving a...
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7570927 |
Decentralized wireless communication network and method having a plurality of devices
A wireless communication system and method for determination of the location of a location-incapable device of a decentralized wireless communication network. Upon receipt of location determination...
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7489927 |
Method and system for object tracking and communication
A system and method for communicating between ground stations and mobile satellites effectively eliminates the need for transferring information from one ground station to another. Communication...
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7460831 |
System and method for excluding narrow band noise from a communication channel
A signal filtering system and method that may be used in conjunction with a repeater or an input stage of a base-station. The system may include an analog to digital converter adapted to sample a...
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7454167 |
Apparatus and method for echo cancellation in a wireless repeater using cross-polarized antenna elements
A repeater for re-transmitting uplink and downlink signals in a wireless network. The repeater uses antenna cross-polarization, signal cancellation and digital processing techniques to reduce or...
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7426243 |
Preprocessing signal layers in a layered modulation digital signal system to use legacy receivers
Systems and methods for receiving non-coherent layered modulation signals are presented. An exemplary apparatus comprises a tuner for receiving a layered signal and producing a layered in-phase...
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7421281 |
Methods and apparatus for supporting group communications
Group communications methods and apparatus are described. In particular, methods for granting a mobile device access to a communications resource, e.g., the right to transmit data, associated with...
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7363007 |
Adaptive modulation/demodulation method and radio communications systems
Adaptive modulation/demodulation method in a radio communication system is provided. A modulation multi-level number in a transmission device and a demodulation multi-level number in a reception...
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7339955 |
TDMA communication method and apparatus using cyclic spreading codes
Systems and methods of ultra-wideband communication are provided. In one embodiment, an ultra-wideband communication system divides a stream of data conveying symbols into a plurality of unspread...
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7269403 |
Dual-mode wireless and wired power line communications
This invention presents a dual-mode wireless/wired power line communications that is used to carry signals with variable transmission data rates from 31.0 Mbps to 173.6 Mbps over a power line...
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7170961 |
Method and apparatus for frequency-domain tracking of residual frequency and channel estimation offsets
Various methods and apparatus for frequency-domain estimation of carrier frequency offsets are provided in which the carrier frequency offset estimate is robust against non-white...
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7171177 |
Communication apparatus and method using human body as medium
Provided is to a communication apparatus and method using a human body as a medium, in which secure/normal data signals are transmitted/received to the inside and outside of a human body...
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7133462 |
Method and apparatus for determining modulation scheme for retransmission in a communication system
A method and apparatus for determining an optimum modulation scheme for a retransmission in a communication system supporting HARQ. When two modulation schemes are available, at an initial...
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7120202 |
Wireless communication apparatus
In a wireless communication apparatus which has the functions of both ASK modulation and QPSK modulation, which can be manufactured at a low cost, and which is small in size, an output terminal of...
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7088951 |
Receiver, method thereof, program thereof, recording medium recording the program, and communication system
The system controller 12 attains program table data from a received electric wave upon turning on the power source. Program table data are rearranged for every ensemble and stored again. The user...
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7069049 |
Apparatus and method for controlling duplication structure of base station transceiver subsystem in a mobile communication system
An apparatus and method for controlling a duplication structure of a Base station Transceiver Subsystem (BTS) is provided. The BTS has N number of sectors including a first sector to an Nth sector...
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7043201 |
Two-way radio communication system and two-way radio communication method
Only a first radio station is equipped with a local oscillation signal source. A signal transmitted to a second radio station includes local oscilaation signal components used to up-convert a...
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7024157 |
Local area network computer system utilizing radiating transmission line
A radio frequency communication system utilizing a radiating transmission line for communicating data signals is disclosed. The data signals convey digital data to remotely located data devices,...
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7024158 |
Broadband communication satellite
A satellite system is provided that includes a receive antenna system to receive one of C-band and/or Ku-band signals and a transmit antenna system to transmit one of C-band and/or Ku-band signals....
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6985716 |
Radio signal broadcast system and method
A first transmitting device is used to transmit a first signal on a first carrier frequency to a relay device. The relay device receives the signal by demodulating the first carrier frequency....
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6944139 |
Digital broadcast system using satellite direct broadcast and terrestrial repeater
A digital broadcast system is provided which uses a satellite direct radio broadcast system having different downlink modulation options in combination with a terrestrial repeater network employing...
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