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Class 455/63.2 - System with hierarchical coverage areas


Subclass of Class 455 - Telecommunications
Definition: Subject matter including interference prevention, reduction,
No. of patents: 50
Last issue date: 04/10/2012


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NumberTitleIssue Date
8155595Method for iterative interference cancellation for co-channel multi-carrier and narrowband systems
In a co-channel deployment of narrowband and multi-carrier technologies (e.g., a femtocell and a macrocell), a method provides cancelling of interference which treats the co-channel signals as desired signals and enhances each of them iteratively. At each iteration,...
04/10/2012
7965985Wireless communication systems, methods, and data structure
A wireless communication device is disclosed. The wireless communication device may include a first station and a second station. The first station is coupled with the second station. The first and second stations are within a first cluster. The stations within the ...
06/21/2011
7424298Methods and apparatus for channel assignment
Methods and apparatus for high throughput wireless cells and networks are described. The wireless cells may be equipped with multiple radios. Antennas may be arranged into overlapping and non-overlapping patterns. Channels may be assigned to foster servicing clients...
09/09/2008
7317704Method of assigning radio channels in wireless network
The present invention relates to a method of assigning radio channels to a set of base stations in a wireless network, in which method one radio channel out of a determined set of radio channels is assigned to each base station. In order for different networks not t...
01/08/2008
7292849Method and apparatus for determining gaps in cellular phone area coverage
Usage data is collected during active calls by user equipment (UEs) within a cellular network, the collected information being utilized together with location information to locate any gaps in cellular phone area coverage due to dropped calls. The collected data is ...
11/06/2007
7277412Communications system, communications control apparatus and method, and computer program therefor
A communications system sets a network frame period that can be repeatedly used by a plurality of wireless networks in a predetermined time period. A plurality of channel slots for use by each of the wireless networks is prepared in advance in the network frame. A c...
10/02/2007
7269437Transmission power control circuit using W-CDMA method
A difference between DELAY values of paths is compared and when the difference is below a predetermined value, the paths are assumed to be the same and SIRs estimated for these paths are compared to each other. The SIRs are multiplied by corresponding weighting coef...
09/11/2007
7257376Systems and methods for making channel assignments to reduce interference and increase capacity of wireless networks
There is disclosed a system and method for improving wireless system capacity by reducing collisions where the Signal to Interference Ratio (SIR) is high in systems having a channel reuse of 1. By ordering the channel assignment in each of the interfering cells acco...
08/14/2007
7242907System and method for inband signaling for sector synchronization in a wireless communication system
The present invention relates to communication systems and methods and more particularly to a system and method for optimizing the bandwidth of a point to multipoint wireless system by synchronizing transmit and receive modes of various hubs and sectors. The inventi...
07/10/2007
7231214System and method for frequency re-use in a sectorized cell pattern in a wireless communication system
The present invention relates to a system and method for frequency re-use in a wireless communication system. More particularly, the inventive system and method provides for maximum coverage of a service area with a pattern of cells each having a sectorized hub ante...
06/12/2007
7215659Remotely-cooperative scheduling solution for moderating wireless protocols
Wireless communication networks utilize various communication protocols to exchange data between wireless network devices. Overlapping communication frequencies between data exchange protocols present a collision problem when data transmissions interfere with one an...
05/08/2007
7197960Method and system for generating a call processing control record
A method and system enable the automatic generation of a call processing control record. A user creates a schedule entry comprising a plurality of data entries on an electronic scheduler. The data entries are transmitted from the electronic scheduler to a call proce...
04/03/2007
7177598Method and system for reducing channel interference in a frame-synchronized wireless communication system
Base stations having potentially interfering terminal stations that are geographically located on the same or similar diagonal or Line of Sight (relative to the base station) operate on a first set of time frames (e.g., “even” time frames). Similarly, base stati...
02/13/2007
7174128Radio communication system and radio communication method
In a service area of base station 101 is provided at least one relay station 102 that executes processing for non real time data repeat request from communication terminal 103 as a substitute for base station 101, thereby removing the pro...
02/06/2007
7158778Method for virtual network connectivity for powered off stations in wireless LAN networks
An access point in a wireless network is connected to wireless devices. When any of the devices becomes inaccessible, the device sends a notification to the access point to indicate the inaccessibility. The access point then receives and stores incoming messages tha...
01/02/2007
7130662Simple smart-antenna system for MUD-enabled cellular networks
A “smart antenna” method and system for use in cellular networks where the wireless transmit receive unit and/or the base station utilize multi-user detection (MUD). The interference to and from other users is taken into consideration to maximize the desired sig...
10/31/2006
7088959Method of selecting maximum transmission power level to be used by a radio telecommunications base station or base stations in a network, a radio telecommunications base station and radio telecommunications network
A maximum transmission power level to be used by a radio telecommunications base station in communicating with a mobile user terminal is selected. The base station communicates with neighboring base stations to determine distances to the neighboring base stations, a...
08/08/2006
7065323RF dynamic channel switching method
In an access control system, a method and system for dynamic channel selection to select a channel for communication between a Wireless Access Point Module (WAPM) and a Wireless Panel Interface Module (WPIM). A number of communication channels are available. The WAP...
06/20/2006
7062027Service control apparatus, forwarding switching equipment, service control system, and service control method
An SCP is provided with a pattern notifying unit. The pattern notifying unit is configured so that, on the occasion of providing a service utilizing ISUP interwork between a first leg defined between an originating switching center and a forwarding MSC and a second ...
06/13/2006
7054635Cellular communications network and method for dynamically changing the size of a cell due to speech quality
A method and cellular communications network is provided that improves the speech quality near a border of a cell by dynamically changing the size of the cell. More specifically, the method includes the steps of selecting a cell from a plurality of cells, and receiv...
05/30/2006
7050454Method and communication network for the administration of additional services
A method and communication network for administering additional services which provides that a subscriber self-input into communication terminal equipment be initiated by the subscriber for the respective additional service and, due to the subscriber self-input at l...
05/23/2006
7047014Raster-to-vector conversion operations adapted to modeling of RF propagation
Methods, apparatuses and systems directed to optimizing vector models for use in modeling RF propagation in desired physical environments. In one embodiment, the present invention can operate on pre-existing vector models. In other implementations, the present inven...
05/16/2006
7043254Method for determining organization parameters in a wireless communication system
Automated adjustment of system organization parameters in a wireless communication system is provided by determining the parameter settings using a characterization of signal propagation of the system's coverage area. This characterization is based on measurements o...
05/09/2006
7035643Method for planning mobile radio coverage inside buildings
The invention relates to a method for planning radio coverage and for predicting the high-frequency received power level of a mobile radio transmitter in buildings for a number of floors above and below the floor in which the transmitter is positioned with a transmi...
04/25/2006
6999760Frequency reuse scheme and corresponding frequency hopping sequence
A cell of a wireless radio communication network is divided in N substantially identical sectors S1, S2, . . . , SN looking out from a base station. Sector Si is contiguous to sectors Si−1 and Si+1 for 2≦i≦N−1. N frequencies f1
02/14/2006
6975861Channel preselection method for a RF communication system
The invention relates to a channel entering method for a RF communication system, in particular an indoor network, comprising a plurality of subscriber stations), each of said subscriber stations having a transmitter and a receiver, whereby information can be exchan...
12/13/2005
6970724Apparatus and method for automatically disabling cell phone ringing
The present invention pertains to an apparatus and method for automatically disabling cell phone ringing and/or cell phone beeping. An RF transmitter is used to transmit an RF non-audible mode or control signal. Upon receiving the non-audible mode or control signal,...
11/29/2005
6968154Avoidance of interference between items of electrical apparatus
The invention relates to the simultaneous operation of items of electrical apparatus, such as but not exclusively, a broadcast data receiver and a DECT telephone system. A problem with this type of apparatus is that the operating frequencies of the same can overlap ...
11/22/2005
6954616Top-level controller for wireless communication devices and protocols
Wireless communication networks utilize various communication protocols to exchange data between wireless network devices. Overlapping communication frequencies between data exchange protocols present a collision and interference problem when data transmissions are ...
10/11/2005
6944444Method and system for conditionally routing calls
A method for conditionally forwarding a call for use in a communication network including a switching center in communication with at least one alternative system, an Intelligent Peripheral, and a plurality of subscribers, each subscriber having at least one directo...
09/13/2005
6928153Method and system for generating a call processing control record
A method and system enable the automatic generation of a call processing control record. A user creates a schedule entry comprising a plurality of data entries on an electronic scheduler. The data entries are transmitted from the electronic scheduler to a call proce...
08/09/2005
6909879Methods and apparatus for utilizing radio frequency spectrum simultaneously and concurrently in the presence of co-channel and/or adjacent channel television signals
To address the scarcity of radio frequency (RF) spectrum, the disclosed systems offer unique ways to mitigate interference between television broadcasters (including their direct audience and viewers served via cable television) and other concurrent users of the RF ...
06/21/2005
6901243Method and apparatus for mitigating adjacent channel interference in a wireless communication system
Techniques for detecting and mitigating adjacent channel interference (ACI) in a wireless (e.g., CDMA) communication system. In one aspect, ACI may be determined by signaling or detected by filtering a pre-processed signal in each frequency range where ACI may be pr...
05/31/2005
6832074Method and system for real time cellular network configuration
A method and system for automatically configuring the frequency allocation within a cellular system or network. The method requires the collection of measurements from different parts of a cellular network, generating statistics from these measurements, and combinin...
12/14/2004
6512803Global positioning system receiver capable of functioning in the presence of interference
Systems and methods are described for a GPS receiver capable of functioning in the presence of interference. A method includes detecting an interfering signal including: tuning a band pass filter over a frequency range; and at each of a plurality of incre...
01/28/2003
6487416Method and system for controlling antenna downtilt in a CDMA network
A method and system for controlling downtilt of an antenna in a sector of a cell of a code division multiple access (CDMA) network utilizes dynamic application of antenna downtilt based on estimated relative sector capacity. In the method, current network...
11/26/2002
6449477Radio frequency coverage of an enclosed region by arrangement of transceivers within the region
A method for communicating between a mobile transceiver in a multistory building and a wireless communication network external to the building, the building including alternating even and odd floors and having a near side and a far side, the method includ...
09/10/2002
6359904Data transfer in a mobile telephone network
The scope of the present invention is a method for data transfer in a digital mobile communications system, in which method it is handled data in certain layers according to certain protocols, in a certain layer out of said layers it is transferred user d...
03/19/2002
6301479Technique for providing a secure link in a mobile communication system
A technique for providing a secure link when transitioning between pairs of link layer protocol entities in a mobile communication system is disclosed. The first pair of link layer protocol entities includes a first transmitting link layer protocol entity...
10/09/2001
6301478Intra cell handover and channel allocation to reduce interference
A method of reducing interference in a cellular radio communication including performing a courtesy handover of a first call to another channel to reduce interference in a second call when the presence of the first call on the same frequency as the second...
10/09/2001
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