Matches 1 - 50 out of 185 1 2 3 4 >
Match Document Document Title
7352693 Fault tolerant wireless communication systems and methods  
Systems and methods for fault tolerant communication are provided. A base site is coupled to a central office via a channel service unit. The channel service unit is coupled to the central office v...
7277727 System and method for processing a signal  
A system and method for receiving a communication signal includes a timing source that generates a stable timing signal and a stabilized local oscillator that receives the stable timing signal and ...
7257368 Content distribution system, method for distributing content and computer program thereof  
In a content distribution system, when distributing content to a plurality of user equipment, a multicasting channel is assigned between the user equipment and the distribution system, content bein...
7248831 Remote system status monitoring and software recovery on wireless bridges  
Disclosed are methods and apparatus for an inside bridge component to monitor the status of an outside unit (ODU) of a wireless bridge and to then handle a faulty ODU and/or faulty cable continuity...
7224667 Process for keeping and/or restoring communication links in a planned network with mobile components  
A process for keeping and/or restoring communications within a network with planned resources, the network includes stations arranged in at least one group, wherein each group is composed of at lea...
7171157 System and method for monitoring and testing network elements  
A system for monitoring and testing network elements of a wireless communication network includes at least one air surveillance device (ASD) connected to a target network element through a wire or ...
7136619 Multi-channel redundant wireless network link and device  
A Multi-Channel Redundant Wireless Network Link (RWNL) device ( 10 ) comprises a plurality of wireless networking radio units, a processor unit, a radio control unit, and wired network units. Two R...
7116935 Wireless network system and network address assigning method  
A wireless network system and a network address assigning method are provided which are capable of reducing traffic occurring when an network address is assigned to each of communication units maki...
7069048 Base station system supporting multi-sector/multi-frequency assignment for seamless call service  
A base station system supporting multi-sector/multi-FA in which, when a board goes out of order, a redundant board is automatically switched on, so as to prevent the call from being cut off and the...
7069013 High integrity radio access network client reallocation in a wireless communication network  
A wireless communication system ( 10 ) uses communications bridging functions to establish redundant communication paths ( 32, 34, 44, 46 ) between redundant radio access network session clients ( ...
7006787 Mobile to mobile digital wireless connection having enhanced voice quality  
This invention is directed toward improving the subjective voice quality of a mobile to mobile phone call having tandem vocoder processing by modifying the spectrum of the voice signal before it is...
6892058 Method and apparatus for facilitating fault tolerance in a radio frequency amplifier system  
N input signals are fed ( 702 ) to a first Fourier Transform Matrix (FTM) ( 208 ) to produce N intermediate signals. Each of the N intermediate signals is split ( 704 ) via a non-isolating splitter...
6885861 Service mobility and recovery in communication networks  
A method improves mobility and service recovery for a user in a wireless communication network. Service information concerning the user is stored in a registrar. A subscription message is sent from...
6810011 Protection switching within an OP-n layer  
A protection switching technique associated with an OP-n sublayer of a communications network is presented. Among the advantages presented by this protection switching technique of the present inve...
6778829 Method for indicating unusable sites to communication units in a communication system  
From an unusable site, one or more communication units selects a usable site, thereby reducing missed communications. First, a manager determines ( 201, 401, 601 ) that a site is unusable for a pre...
6766143 Expanded capabilities for wireless two-way packet communications for intelligent electronic devices (IEDs)  
In an independent basic service set (IBSS) of IEDs, using wireless communications devices to provide license-free two-way wireless peer to peer communications of digital data between pairs of IEDs,...
6625420 System and method of fault management in a mobile communications network having a proxy switch  
A proxy switch, communication methods, and communication logic for use in a mobile network are described. A proxy switch is deployed between a base station subsystem and a mobile station center. It...
6587686 Method and apparatus for detecting base station transceivers malfunctions  
The present invention is directed to method and apparatus for detecting base station (BS) transceivers malfunctions in a cellular telecommunications system. A Transceiver Malfunction Detector (TMD)...
6580898 Supervisory system and method  
First and second supervised cards 103 and 104 are respectively provided with bus registers 114 and 115, CPUs 116 and 117 detect occurrence of a state change or failure of the respective...
6564052 Wireless local loop system and method for wireless link control  
A wireless local loop system including wireless base stations each provided with a detecting part for detecting a fault between it and a wireless base station controller and a part, when detecting ...
6445905 Method of preventing data inconsistency between master exchange data and backup exchange data  
The present invention relates to preventing inconsistency between the data maintained in a master exchange and a backup exchange in a telecommunication system. To ensure a reliable data distributio...
6438374 Dynamic multi-step overload control for message processing in wireless communication service network  
A wireless communication service network includes a message processing system with at least two programmable application processors (APs) providing operational, administrative and maintenance suppo...
6438354 Reconfigurable satellite and antenna coverage communications backup capabilities  
A reconfigurable payload for a satellite having a flexible antenna system, a variable downconverter technology and a filter technology that all work in combination to allow the payload of a satelli...
6408182 Redundant mobile switching center (MSC) architecture for a radio telecommunications network  
A telecommunications network architecture and method of providing failover operations between mobile switching centers (MSCs). A plurality of MSCs and at least one base station controller (BSC) are...
6370382 System and method for reducing wireless telecommunications network resources required to successfully route calls to a wireline network  
A system for reducing wireless telecommunications network resources required to successfully route calls to a wireline network of the present invention. A first mechanism routes a call originated f...
6360106 Base station for a radio communications system  
A base station for a radio communication system is provided, particularly for a mobile radio network. The base station contains at least two transceivers and at least one antenna for the radio-tech...
6321083 Traffic hot spot locating method  
The present invention relates to a method and an arrangement for determining a hot spot of telephone traffic in a cell. The invention uses simultaneously two basic measurements of digital radio sys...
6292677 Power delivery system and method of controlling the power delivery system for use in a radio frequency system  
A power delivery system for use in a radio frequency system is provided. The power delivery system including a power splitter and at least one sector amplifier that is responsive to the power split...
6269242 Dynamic beam fill-in system and method therefor  
A dynamic beam fill-in system (40) in a cellular communications network (20) having a constellation (22) of satellites (24) in orbit (26) with each satellite (24) having a plurality of antennas (30...
6256490 Method and apparatus for providing a cell traffic supervision alarm  
A telecommunications system and method is disclosed for providing a cell traffic supervision alarm within a base station (BS) to notify the operator at a Mobile Switching Center (MSC) serving the B...
6229985 Communication apparatus  
When a power failure occurs, a control unit 107 of a main apparatus 101 acquires the outside line 102a through an outside line I/F unit 102 and transmits a signal for requesting terminating transfe...
6198918 Intelligent cell recovery  
A technique for restoring operation to a plurality of cells within a wireless communication system includes the step of estimating the traffic within each cell to provide a plurality of traffic mea...
6188874 Control and telemetry signal communication system for geostationary satellites  
A geosynchronous satellite control and telemetry communication system has branch modules distributed throughout the satellite which serially interface clusters of control and/or analog nodes to the...
6181929 Method for switching cell site controllers  
A radio frequency communication system includes a cell site (FIG. 1), the cell site including an on-line controller (100), an off-line controller (101) and one or more peripheral units (107, 108, 1...
6141532 Transmission line switch-over control system  
There is provided a transmission line switch-over control system capable of significantly improving the nonoperational situation such as circuit disconnection during call or call quality deteriorat...
6134484 Method and apparatus for maintaining the integrity of spacecraft based time and position using GPS  
A method and apparatus for maintaining the integrity of spacecraft based time and position using GPS (11) is disclosed. A GPS receiver is provided with a Receiver Autonomous Integrity Monitor (RAIM...
6112081 Integrated control system for radio service areas of base stations in mobile communication system  
A mobile communication system which includes an exchange, a plurality of base stations, and a plurality of radio telephone sets communicatable with the associated base stations. In order to suppres...
6097928 Method for selecting a control channel in a trunked radio system  
A method for selecting a control channel in a trunked radio system having a number of control channels and radio unit groups corresponding to the control channels, including the following steps of:...
6084541 Self diagnosis and self healing scheme for digital beam-forming  
A completely autonomous failure recovery scheme for digital beam forming that provides self-diagnosis and self-healing of faulty processing chains in a communications satellite payload. A baseline ...
6070073 Communication system and method for notification and call routing in a mobile satellite network  
A communication system and methodology are implemented to anticipate periodic or predictable disruptions of communications in a satellite communication network. The communication system and methodo...
6037868 Alarm method and apparatus for a mobile communication repeating system  
An alarm method and apparatus in a mobile communication repeating system having a plurality of repeating modules for informing a base station that a repeating module is out of order. The repeating ...
6018644 Low-loss, fault-tolerant antenna interface unit  
An antenna interface unit (AIU) for providing low power loss, fault tolerant connectivity between multiple transmitters and an antenna, and between multiple receivers and the antenna. The antenna i...
6002928 Switching apparatus and method for transceiver of cellular base station in code division multiple access mobile telecommunication system  
A transceiver switching apparatus and method for maintenance and repair of a troubled transceiver in a cellular base station in a CDMA mobile telecommunication system. The apparatus has a switching...
5983078 Channel spacing for distortion reduction  
Distortion or noise in detected signals, due to intermodular distortion in transmitting sets which transmit multiple channels simultaneously via the same element or component, is reduced by selecti...
5924014 Method and apparatus for adaptive routing in a satellite-based communication system  
In satellite based communication systems (30), real time monitoring of communication links (23-25) and the subsequent adaptations to overcome problems with certain links (23,25) provides the commun...
5920804 Method and apparatus for communications hand-off between multiple satellite systems  
A method and apparatus for handing off communications between a primary satellite system (500) and an alternate satellite system (550) determines (602) when a hand-off condition for the primary sat...
5915208 Vehicular repeater system and method therefor  
In a communication environment (140) having multiple vehicular repeater systems (110, 120) operating according to a priority scheme designating primary responsibility for retransmitting signals, a ...
5828944 Diversity reception signal processing system  
A signal receiving system has an antenna assembly divided into sectors. Each sector employs diversity by having at least two antennae for receiving signals from that sector. Signals from the antenn...
5819170 Power supply unit with switch-on/off facility for powering radio equipment  
A power supply unit with a switch on/off facility for powering radio equipment is disclosed. The power supply unit includes an input portion having keys, a power generating circuit for generating p...
5805976 Single site, split location trunked radio communications system  
Base stations located at physically separate, remote locations are operated as a single site to permit trunked radio communications between portable radios located at those split sites. A first tru...

Matches 1 - 50 out of 185 1 2 3 4 >