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6188916 |
Communication system of portable communication terminal, incoming call control system of portable communication terminal and incoming call notifying device of portable communication terminal
The malfunction of a vibrator as a drawback of a conventional independent vibrator type portable terminal is obviated. A communication system of a portable communication terminal comprises a...
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6181686 |
Automatic data transfer mode control
The method according to the invention relates in general to transmission in cellular telecommunication systems and in particular to optimization of the data transfer mode. In the method according...
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6172967 |
System and method for servicing communications between base station and plural mobile stations
A method for servicing communications between a base station and plural mobile stations which are linked by a radio line in which plural communication channels are set, comprising the steps of...
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6160800 |
TDMA communicating method and TDMA receiving apparatus
A TDMA receiving apparatus for use with a base station including a plurality of receiving antennas, a plurality of outdoor units for converting received signals into first intermediate frequency...
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6157625 |
Audio-video signal transmission apparatus
In transmitting an MPEG transport stream, each audio signal packet is placed after the corresponding video signal packet when audio and video transport streams are multiplexed. If simple switching...
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6157632 |
Low complexity protocol method device and system robust in the presence of bursted
The present invention provides a method/protocol (400, 800) and device (600; 700) for transmitting a synchronous stream of information, in a wireless, centrally controlled communication system. The...
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6154652 |
Device and method for performing handoff in mobile communication system
A mobile communication system transmitting data in frame unit includes a base station apparatus and a terminal apparatus. The transmitter has a controller having consecutive first and second frames...
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6151310 |
Dividable transmit antenna array for a cellular base station and associated method
A time division multiple access base station communicates with a plurality of mobile stations in a cellular communications system using a plurality of time division multiple access (TDMA) time...
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6144653 |
Method for communicating in a wireless communication system
A communications system in which information is transmitted in a plurality of time slots grouped into a plurality of superframes which are, in turn, grouped into a plurality of paging frames. A...
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6144710 |
Joint maximum likelihood sequence estimator with dynamic channel description
A cellular communication signal receiver receives a desired signal in the presence of at least one co-channel interference signal. The receiver comprises a channel estimator configured to receive a...
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6137787 |
Method and apparatus for resource assignment in a wireless communication system
A method and apparatus for assigning communication resources for at least one communication site in a time division communication system having multiple reuse patterns in the time domain. A first...
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6134230 |
Method for selecting a link protocol for a transparent data service in a digital communications system
In a communication system, a link protocol for a transparent data between a mobile station and a base station is selected by pre-selecting from all possible combinations of available link protocols...
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6131033 |
Methods and systems of performing system channel planning for wireless local loop communication
Methods and systems of communication reduce the internal interference associated with conducting radio communication in a wireless local loop communication system down to acceptable levels....
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6131034 |
Method and apparatus for collector arrays in wireless communications systems
The present invention is a communication system having a plurality of forward channel communications and a plurality of corresponding reverse channel communications in a region for communications...
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6125276 |
Inter-exchange signaling for in-call service change requests
In those instances wherein inter-exchange handoff of a cellular call occurs, and a mobile station desires to activate an in-call service change with respect to that cellular call among and between...
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6125148 |
Method for demodulating information in a communication system that supports multiple modulation schemes
A method of demodulating voice or data and control information in systems that support multiple modulation schemes modulates voice or data using a first linear modulation scheme, such as 16QAM...
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6115369 |
Wireless repeating method and wireless repeating unit
The object of the present invention is to provide a simple wireless repeating method and a repeater suitable for application to Time Division Multiple Access-Time Division Duplex communication...
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6112084 |
Cellular simultaneous voice and data including digital simultaneous voice and data (DSVD) interwork
A system and method of simultaneously conducting a data transfer and a voice call between a mobile station and a radio telecommunications network having a mobile switching center (MSC) which serves...
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6112066 |
Mobile radio set and method of determining the reception field strength
The reception field strength of the RF carriers of adjacent channels and of the current channel are determined in a mobile radio set in a TDMA system. A plurality of individual measurements are...
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6111867 |
Method and apparatus for load shedding in a TDMA packet data system
A system implements a method of allocating a mobile communications device, such as a mobile end station, to packet channels, such as packet control channels within a cell. A mobile communications...
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6108322 |
Method of enabling handoff
A method improves the decoding rate and reliability of adjacent cell base stations by expediting the decode process if the signal quality of a traffic channel is within a predetermined range. In...
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6108325 |
Optimized SMS delivery algorithm
A system and method for delivering short messages to idle mobile stations which conserves paging channel capacity. A normal page is first sent to all cells to locate the mobile station to which the...
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6101171 |
Slot by slot PS/CS switching apparatus within the personal handy phone system
A method and system that enables a wireless repeater within the personal handy phone system to switch the communication mode of each slot within its communication interface. Specifically, the...
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6097709 |
TDMA cellular communication system using a receiver station for detecting a timing difference between adjacent base stations
In a time-division multiple access cellular mobile communication system, first and second base stations respectively provide coverages over adjacent cells. A receiver station is located in a region...
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6097707 |
Adaptive digital wireless communications network apparatus and process
A single channel wireless digital communication network [10] has a cellular topology which includes a central unit [12] ("CW") controlling communications with a plurality of remote units [14]...
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6097704 |
System for communicating digital information between a base unit and plural mobile units
In a wireless communication system in which a base station communicates with plural mobile stations using frames of digital data, each frame having a control slot and plural voice (or data) slots,...
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6094429 |
Method for accessing and providing access to a packet channel
A communications system (100) has a TDMA signal (110) accessed by one or more mobile stations (104). The TDMA signal carries both circuit switched and packet data service. A packet channel is...
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6091936 |
Method and apparatus for reducing co-channel interference
The amount of co-channel interference which occurs for any given time slot in a cellular communication system can be reduced by distributing or averaging out the co-channel interference to other...
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6088570 |
Method and apparatus employing delay elements in multiple diversity paths of a wireless system repeater translator to allow for selective diversity and automatic level control in a time-division multiple access system
In a conventional Time Division Multiple Access (TDMA) wireless system, the specified distance between a mobile unit and the base transceiver system (BTS) cannot exceed predetermined distances...
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6088578 |
Burst request method and apparatus for CDMA high speed data
Disclosed is an apparatus and method for increasing the efficiency of usage of an assigned rf spectrum used by a cellular or wireless communication system for a large number of high speed data...
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6084865 |
Dual mode satellite/cellular terminal
A method and apparatus of communicating information using Time Division Multiple Access and adaptive transmission and reception are disclosed. Signal bursts are transmitted from TDMA transmitters...
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6078574 |
Process and apparatus for action control in a time slot method
A TDMA radio system, for example according to the DECT standard, requires counters which control actions. A process and an apparatus for action control in a time slot method include three counters,...
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6078576 |
High processing gain CDMA/TDMA system and method
A system and method for W-CDMA transmissions from the base to a remote unit and spread-TDMA transmissions from the remote unit to the base. By using spread-TDMA on the reverse link, limitations...
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6072788 |
Forward link TDMA power control system and method
A system and method are disclosed for independently adjusting the forward channel power level of each time division burst period of a frame of a time divided signal. The disclosed invention teaches...
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6064660 |
GSM transceiver with portable protocol stack
A GSM transceiver unit (10), for use in a GSM network (84), having a multilayer portable protocol stack is disclosed. The multilayer protocol stack includes a hardware layer (204), a first portable...
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6061340 |
Transmission of digital data messages in digital telephony
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6058108 |
Method and apparatus for locating a digital control channel in a radiocommunication system
A method and system for locating control channels, particularly digital control channels, are described. By grouping the channels which are candidates for carrying supervisory messages in blocks...
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6058104 |
Communications webs for PSTN subscribers
Systems for connecting telecommunications infrastructure lines to telephones, handsets, computers, telecopy machines and other end user interfaces or consumer electronics devices in a residence or...
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6052557 |
Direct mode repeater in a mobile radio system
A direct mode repeater for forwarding traffic between mobile stations communicating on a direct mode channel, includes a transceiver unit for forwarding radio messages between mobile stations...
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6049533 |
Network communication system with information rerouting capabilities
A network communication system in which access points providing wireless access to the system reroute misrouted information packets in the event the location of a mobile unit has changed....
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6047023 |
Swept frequency modulation and demodulation technique
A swept frequency communication system includes a modulator that multiplies a frequency sweep signal with one or more underlying modulated communication signals to produce a swept frequency signal...
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6041238 |
Channel assignment method in mobile communications system
A communication channel is dynamically assigned to a mobile station in autonomous decentralized channel assignment in TDMA/TDD communications system. An interference detection criterion is...
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6038455 |
Reverse channel reuse scheme in a time shared cellular communication system
A time sharing method and apparatus for frequency reuse in cellular communication systems. Frequency reuse is enhanced by synchronizing cell transmit/receive base stations in a cellular system to a...
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6038238 |
Method to realize discontinuous transmission in a mobile phone system
The object of the invention is a method to realize discontinuous transmission (DTX) in a telecommunications network, e.g. in a GSM (Global System for Mobile Communications) mobile phone network,...
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6028854 |
Radiocommunication systems and terminals with increased payload bandwidth
Variances in bandwidth used by a radiocommunication connection are adapted to by changing the type of information being transmitted. For example, in a TDMA environment, a first downlink time slot...
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6016305 |
Apparatus and method for template-based scheduling processes using regularity measure lower bounds
An advantageous scheduling template slot ordering for use in establishing a scheduling order of events such as transmitting communication signals in a communication network is determined by...
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6016322 |
Apparatus and method for self synchronization in a digital data wireless communication system
The present invention pertains to a self-synchronization apparatus and method for use in a multiple access channel communication network. In an embodiment of the present invention, the...
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6016314 |
Information transmission system comprising at least one base station and at least one satellite station
The system is formed by a base station STB1 and two mobile stations STM1 and STM2. The information exchange between these stations is performed by means of two time multiplex signals which are...
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6016430 |
Radio communication system and method for avoiding control channel interference
A radio communication system including a plurality of base stations which communicate with a plurality of radio terminals respectively is provided with a capability of avoiding occurrence of radio...
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6014562 |
Radiotelephone communication systems and methods that map an access request into a predetermined random access channel slot to identify a nearest gateway to a radiotelephone
An access request by a radiotelephone for one of a plurality of radiotelephone traffic channels is mapped into a predetermined one of a repeating series of Random Access CHannel (RACH) slots, based...
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