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7620094 |
Spread spectrum clock generator
Disclosed is a spread spectrum clock generator which includes: a first delay control type oscillator that variably controls an oscillation period at a control period interval according to a control...
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7620028 |
Multi-channel binding in data transmission
A system and method are described for binding together a plurality of wireless data communications channels, whereby an aggregate throughput improvement is realized. A master channel amongst the...
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7620022 |
TDMA communications apparatus
A CPU of a TDMA communications apparatus examines whether a slot to be allocated for a next transmission is a first slot (S 1 ). If the slot to be allocated is the first slot, the CPU examines...
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7620021 |
Method, base station and mobile station for timeslot selection and timeslot assignment
A timeslot selection method is provided. The timeslot selection method includes the steps of: obtaining a propagation loss; receiving an occupation state and an interference amount of an uplink...
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7613150 |
Hitless restart mechanism for non-stop data-forwarding in the event of L3-mobility control-plane failure in a wireless switch
Techniques and technologies are provided for restarting a first wireless switch when the first wireless switch fails. For example, after the first wireless switch fails, the first wireless switch...
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7606294 |
Channel quality estimation method and receiving apparatus
Channel quality can be detected accurately in a wireless transmission system such as an HSDPA method. In the case of estimating a channel quality of a signal transmitted by a Code Division...
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7606188 |
Explicit congestion notification for DOCSIS based broadband communication systems
Satellite communications are carried out using the Data Over Cable Interface Specification (DOCSIS). Satellite modems are notified of upstream channel congestion by inserting a congestion...
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7596350 |
Method and system for determining delays between a primary site and diverse site in a satellite communication system
A method and system for determining delays between a primary site and a diverse site in a satellite communication system includes uplinking signal from the primary site and the diverse site. A...
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7596111 |
Satellite/terrestrial wireless communications systems and methods using disparate channel separation codes
A wireless communications system includes a space-based component (SBC) and an ancillary terrestrial component (ATC) configured to communicate with radioterminals using a common satellite service...
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7593738 |
GPS synchronization for wireless communications stations
A method and system are specified to determine, provide, and exploit the precise time base relations between the distinct signal timings of the Global Positioning System (GPS) and a wireless...
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7593450 |
Dynamic frequency hopping
A frequency hopping communications system is disclosed. A server is adapted to have one or more radio head interface modules and a call processing software module. The call processing software...
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7590098 |
Publish/subscribe model in a wireless sensor network
A wireless sensor network comprises a plurality of nodes that communicate over wireless communication links. At least one of the plurality of nodes receives sensor data from a sensor. A...
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7586992 |
Apparatus and method for channel estimation and cyclic prefix reconstruction in an OFDM-STBC mobile communication system
An apparatus and method for channel estimation and CP reconstruction in an OFDM-STBC mobile communication system are provided. An ISI canceller cancels ISI signal components from first and second...
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7586867 |
Access point and method for establishing a wireless distribution system link between access points
A method for a establishing wireless distribution system link between two access points includes the steps of: providing an input module for each access point; receiving a first input to enter a...
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7583735 |
Methods and systems for handling underflow and overflow in a software defined radio
Systems and methods for handling buffer overflows and underflows in a software defined radio are presented. A communications system comprises one or more radio head interface modules and a call...
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7577116 |
Timeslot assignment mechanism for satellite communication network
A time division multiple access (TDMA) waveform for controlling a MIL-STD-188-183 compliant demand assignment multiple access (DAMA) satellite communication network contains a short duration and...
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7577114 |
Method for controlling a mobile communication device to enter a power-saving mode and to recover timing after the mobile communication device leaves the power-saving mode
A method for controlling a mobile communication device to enter a power-saving mode and to recover timing after the mobile communication device leaves the power-saving mode. The mobile...
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7570954 |
Communication system wherein a clocking signal from a controller, a request from a node, acknowledgement of the request, and data transferred from the node are all provided on different frequencies, enabling simultaneous transmission of these signals
A communication system is provided for communication between network nodes and a communication controller. In the network, a request signal is transmitted from a first node to the communication...
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7567533 |
Packet detection system, packet detection device, and method for receiving packets
A packet detector for a multi-band orthogonal frequency division multiplexing system includes a plurality of packet detection units each corresponding to a time frequency code for detecting packets...
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7564829 |
Allocation of radio resource in orthogonal frequency division multiplexing system
An uplink capacity is increased by a method in which more than two mobile stations simultaneously use a radio resource allocated to one mobile station. A method of allocating a radio resource in an...
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7561542 |
System, method and apparatus for determining if data from a source has arrived properly at a destination in a time division multiplex (TDM) communication network
A first time division multiplex (TDM) time slot is provided which is defined as a bi-directional channel for use in a TDM network including a source node and a destination node. The source node can...
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7558232 |
Adaptive duty cycle management method and system for radio transmitters
A duty cycle management system and method for use in a wireless device having a transmitter which transmits packets in the form of individual packets and/or packet bursts. A controller in...
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7555300 |
Base station interference control using timeslot resource management
A personal base station configured to connect to the Internet and establish a small area of wireless coverage including means for controlling interference with neighboring personal base stations...
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7555029 |
Method for decoding a plurality of standard radio waves and standard radio wave receiver
A method and a standard radio wave receiver for receiving a plurality of standard radio waves respectively having signal configurations in accordance with respective specifications which define...
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7554937 |
Adaptive packet transmission method for transmitting packets in multibeam satellite communication system
Provided is an adaptive packet transmission method in a cellular mobile communication system using a multibeam satellite. The method includes the steps of: a) being periodically reported, from...
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7554916 |
Automatic reverse channel assignment in a two-way TDM communication system
To minimize overhead in the allocation of channels, forward and reverse link time slots are automatically assigned in pairs. In particular, rather than requiring a separate process for allocating...
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7551665 |
Ultra wideband receiver architecture using high order Gaussian pulses and method of operation
An ultra wideband (UWB) receiver system operable to process a high order Gaussian pulse includes an integrator group, a correlator circuit and a comparator circuit. The integrator group includes an...
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7551575 |
Context-switching multi channel programmable stream parser
A stream parser for receiving, parsing, and/or pre-processing network data traffic directly from an incoming unreconstructed data stream. To extract meaningful data from the unreconstructed data...
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7532891 |
Method and apparatus for timing correction in communications systems
In a wireless communications system, transceivers transmit short bursts to a base station, which determines timing corrections from the time of receipt of the burst and transmits the timing...
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7532685 |
Methods of controlling tracker bandwidth in wireless communication systems
A method of tracking on-time errors may include producing first and second metrics from accumulated signal samples of a received data frame, and calculating a sum of, and a difference between, the...
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7529209 |
System and method for mitigating fading of a signal at a radio receiver
The present invention provides a method and system for mitigating fading and/or poor reception at a receiver. The receiver includes configurations each of which can provide different reception...
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7519097 |
Spread-signal multiplexing circuit
The invention relates to a spread-signal multiplexing circuit for frequency-multiplexing a plurality of spread signals that were generated in parallel according to the SSMA scheme. An object of the...
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7516473 |
Method and system for signaling
The present invention relates generally to the field of signaling of information, and particularly to a method and a system for signaling information in transmission systems. Methods for signaling...
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7515566 |
Partial mesh communication in hub based system
A partial mesh link channel is established within a satellite communication system by allocating return link channel resources to the partial mesh link channel.
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7515559 |
Handoff system using an initial ranging scheme in a broadband wireless access communication system and method for controlling the same
A communication system using an OFDM (Orthogonal Frequency Division Multiplexing) scheme. The communication system receives neighbor BS (Base Station) information of a plurality of neighbor BSs...
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7509150 |
Reducing power consumption in a radio device by early receiver shut down
A power savings technique is provided for a radio communication device. The technique involves reducing the amount of time that a receiver is powered-up during a time interval that the radio...
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7508863 |
Method of processing multi-path signals
In the method of processing signals, multi-path signals are received, channel estimates for the received multi-path signals are determined, and a combining operation is applied to the multi-path...
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7508784 |
Method for canceling noise in a mobile terminal
A system and method improves performance of a GSM TDMA-based terminal by canceling TDMA noise. When a time burst is generated on a battery power line, a check is performed to determine whether a...
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7508783 |
Method for selecting a transmission channel with a TDMA (time division multiple access) and communication system using such a method
A method for selecting transmission channels in a time data multiple access protocol and to a communication system using the method. Based on indications of transmission quality of each channel...
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7505506 |
System and method for generating single sideband, constant envelope, spread spectrum signals with multiple spreading codes
A method of generating a composite signal includes the steps of: (a) generating a plurality of sub-carriers, each sub-carrier having a different frequency position in a frequency spectrum; (b)...
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7502357 |
Radio communication system and transmitter
A radio communication system according to the present invention comprises a transmitter having a plurality of transmission antennas, and a receiver having a mechanism to perform a diversity...
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7499426 |
Uplink throughput for wireless network interfaces
Methods and apparatuses for uplink allocation. A remote station may receive one or more uplink data transfer parameters from a base station using a wireless communications protocol. Data may be...
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7499421 |
Apparatus and method for resource allocation in MF-TDMA broadband satellite system
Provided is a resource allocation apparatus and method in a multi frequency-time division multiple access (MF-TDMA) broadband satellite system, which can employ timeslots in a return link with a...
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7496064 |
Ultra wide band wireless medium access control method and a device for applying an ultra wide band wireless medium access control scheme
A method and device for ultra wide band wireless medium access control, the method includes: assigning a plurality of information frames to at least one DRP queue and to at least one PCA queues;...
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7496063 |
Time division multiplexing radio system for controlling transmission power
A time-division multiplexing radio system controls transmission power based on an adjacent-channel leakage power ratio with precision and stability. The system has a directional coupler arranged at...
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7492736 |
System and method for access and management of beacon periods in distributed wireless networks
The present application describes a system and method of managing beacon periods in a distributed wireless network. According to an embodiment, devices move their beacons to earliest available...
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7492732 |
Differential clock recovery in packet networks
Where a common network clock is available at both a TDM receiver and a TDM transmitter which communicate via a packet network, differential clock recovery can be accomplished by matching the number...
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7480324 |
Ultra wide band communication systems and methods
Ultra wide band communication systems and methods are provided. In one embodiment, an ultra wide band communication system includes a first and a second communication device. A lowest common ultra...
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7477878 |
Data transmission system, data transmitter and data receiver used in the data transmission system
In a data transmission system, a transmitter adds control data to transmission data, and modulates the resultant signal by a predetermined modulation method, and sends the result in a wireless...
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7477659 |
System and method for performing admission control functions in a data network
A resource manager 20 receives and compiles data from a plurality of base transceiver station 14 to enable an admission control decision before beginning a communication session with a mobile...
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