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7386313 Method for carrying out a handover procedure in a radio communications system having a number of transmitting/receiving units  
In order to carry out a handover procedure, in which a radio link between a mobile station and a radio communications system, which is set up via a first transmitting/receiving unit, is switched to...
7359364 Monitoring in communication system with wireless trunk  
A communication system having a wireless trunk for connecting multiple phone lines over wireless communication links to a cellular network comprises a central telephone switch, such as a private...
7322041 Authentication and security in wireless communication system  
A communication system having a wireless trunk for connecting multiple phone lines over wireless communication links to a cellular network comprises a central telephone switch, such as a private...
RE39735 Cellular communication system, and mobile and base stations used in the same  
When a mobile station becomes a soft handover state, a reception quality monitor 104 measures reception quality of a pilot signal from each base station. Base station specifying means 105 ...
7212820 Mobile assisted handover using CDMA  
A method and system for facilitating handover in mobile radio communication systems are illustrated. The mobile unit assists in making handover decisions by monitoring the signal strength of...
EP1398912B1 An IEEE 802.11 WLAN-network enabling fast roaming  
Abstract not available for EP1398912
7155246 Transmitter directed code division multiple access system using multi-users diversity to maximize throughput while equitably providing access to users  
A transmitter directed, distributed receiver using multi-user diversity provided by the distribution of the receiver. Advantage is taken of the uncorrelated variations over time in the condition of...
7123922 Transmitter directed code division multiple access system using path diversity to equitably maximize throughput  
A transmitter directed, distributed receiver using path diversity provided by the distribution of the receiver. Advantage is taken of the uncorrelated variations over time in the condition of...
7120187 Spread spectrum wireless communication system  
A system for accessing a telephone system, in which a set of user stations are matched with a set of base stations for connection to a telephone network. Each base station may be coupled directly...
7099292 Spread spectrum communications using a reference and a message signal system and method  
A spread spectrum remote unit produces a message signal having message data. A reference signal is produced. The reference signal is used to recover the message data from a combined spread spectrum...
7092722 Method and system for establishing mobile station active set based on mobile station location  
A method and system for selecting a mobile station active set based, at least in part, on the geographic location of the mobile station. A base station or other entity monitors the mobile station's...
7079500 Digit transmission over wireless communication link  
A communication system having a wireless trunk for connecting multiple phone lines over wireless communication links to a cellular network comprises a central telephone switch, such as a private...
RE39177 Method and apparatus for performing soft hand-off in a wireless communication system  
A method and apparatus for providing soft handoff in a mobile communication system. In current systems is that the members of active set are determined in accordance with comparisons of measured...
7068934 Optical interconnect  
An optical interconnect comprises an input configured to receive light of a plurality of light wavelengths and a plurality of holographic optical elements. Each element configured to reflect one...
7054278 Spread-spectrum changeable base station  
A base subunit receives a signal over a first frequency. A plurality of despread voice signals are produced using the received signal. The despread signals and a voice signal generated at the base...
7020184 Store and forward handoff  
In a cellular spread-spectrum communications network, a system and method for handing off a remote unit from a first base station to a second base station without loss of data. The remote unit...
7020114 Spread spectrum communication system and method using a reference signal and a plurality of message signals  
A spread spectrum communication system produces a reference signal. A plurality of message signals are produced. Each message signal has message data. The reference signal and the plurality of...
7013160 Method and apparatus for performing fast power control in a mobile communication system  
A method and apparatus for controlling transmission power levels in a mobile communication system. The method provides for a closed-loop power control method. A mobile station provides information...
7003021 System and method for generating signal waveforms in a CDMA cellular telephone system  
A system and method for communicating information signals using spread spectrum communication techniques. PN sequences are constructed that provide orthogonality between the users so that mutual...
6999766 Method and apparatus for optimization of a cellular network  
A method and apparatus for optimizing system parameters in a cellular communication network. Pilot strength measurement messages (PSMMs) that are received by bases stations of the network to be...
6983150 Wireless cellular communication system  
A wireless communication system including a repeated pattern of cells, in which base station transmitters and user station transmitters for each cell may be assigned a spread-spectrum code for...
6947469 Method and Apparatus for wireless spread spectrum communication with preamble processing period  
A simple and flexible over-air protocol for use with a mobile telephone system, having hand-held telephones in a microcell or other type of cellular communication system. A method in which user...
6925071 Spread spectrum base station  
A spread spectrum remote unit produces a message signal having message data. A reference signal is produced. The reference signal is used to recover the message data from a combined spread spectrum...
6917601 Spread spectrum remote unit  
A spread spectrum remote unit produces a message signal having message data. A reference signal is produced. The reference signal is used to recover the message data from a combined spread spectrum...
6914965 Method and apparatus of providing a single state mobile unit in a modem connection comprising a wireless link  
An apparatus and method of providing a reliable method of entering command mode and executing modem commands with a modem comprising a wireless communications channel. A wireless communications...
6889056 Transmission control scheme  
The present invention provides a transmission control scheme for wireless digital networks comprised of a plurality of access points each communicating with access terminals, which improves data...
6859654 Method for transmitting measurement reports in a mobile communications system  
A service node is provided in a mobile communications network which collects radio link measurement reports which are transmitted to the service node by mobile stations. The mobile stations...
6810255 Method and apparatus for controlling transmission power while in soft handoff  
Method and apparatus for adjusting the transmission power of base stations in simultaneous communication with a mobile station. The methods described provide for the transmission power of the base...
6807161 Method and apparatus for signal combining in a high data rate communication system  
Reverse link busy bits are independently generated by each base station and indicate whether a base station has reached a reverse link capacity limit. A remote station combines multipath components...
6804210 Method and apparatus for signal combining in a high data rate communication system  
Reverse link busy bits are independently generated by each base station and indicate whether a base station has reached a reverse link capacity limit. A remote station combines multipath components...
6757320 Method and apparatus for forward link power control  
A forward link power control mechanism measures the reverse link power control bits which are transmitted on the forward traffic channel. At the remote station, the reverse link power control bits...
6751205 Signaling and protocol for communication system with wireless trunk  
A communication system having a wireless trunk for connecting multiple phone lines over wireless communication links to a cellular network comprises a central telephone switch, such as a private...
6721350 Spread spectrum adaptive power control using a base station  
In response to the base station receiving a received signal, the received signal having a first spread-spectrum signal and an interfering signal. An automatic gain control (AGC) circuit generates...
6714789 Method and system for inter-frequency handoff and capacity enhancement in a wireless telecommunications network  
A method and system for allocating air interface resources in a wireless telecommunications network. A control entity determines the current or projected location of a mobile station. Using the...
6714512 Method and apparatus for a dedicated control channel in an early soft handoff in a code division multiple access communication system  
A method and apparatus for high data rate communication in a cellular/PCS communication system is provided. Specifically, the embodiment provides for early assignment of code channel for signaling...
EP1401228A2 Method and apparatus for reducing the average downlink transmitted power from base stations during soft handoff  
A method for achieving the soft or softer handoff process such that the performance of a system is improved is based on reducing the power of transmissions from the sector having the weakest signal...
6711358 Optical apparatus using a phase grating  
An optical apparatus comprises a phase grating, an input-ring array, an output-ring array and an optical interconnect. The phase grating produces a modulated light beam for each of a plurality of...
EP1398912A1 An IEEE 802.11 WLAN-network enabling fast roaming  
Abstract not available for EP1398912
6690938 System and method for reducing dropped calls in a wireless communications network  
A system and method for managing wireless communications system resources. The system includes a first mechanism that determines currently available wireless communications system traffic resources...
6680926 Method and apparatus for signal combining in a high data rate communication system  
Reverse link busy bits are independently generated by each base station and indicate whether a base station has reached a reverse link capacity limit. A remote station combines multipath components...
6674736 Method and apparatus for performing idle handoff in a multiple access communication system  
A method and apparatus which permits handoffs while the mobile station is in the system access state. This is achieved by providing for channel assignment messages to be sent over the paging...
6671308 Spread spectrum adaptive power control  
A system and method for adaptive power control of a spread spectrum transmitter of a mobile unit operating in a cellular-communications network having a plurality of mobile units in communication...
6654611 Method and apparatus for performing idle handoff in a multiple access communication system  
A method and apparatus which permits handoffs while the mobile station is in the system access state. This is achieved by providing for channel assignment messages to be sent over the paging...
6646995 Method of adapting the air interface and mobile radio system and corresponding base transceiver station, mobile station and transmission mode  
A mobile radio system enables exchange of bidirectional digital signals between at least one mobile station and at least one base transceiver station and provides at least two coding modes, each...
6625197 Method and apparatus for multipath demodulation in a code division multiple access communication system  
Multipath RAKE receiver structure that allows for the concurrent demodulation of multipath signals that arrive at the receiver at arbitrarily low arrival time differences. The fingers are set to be...
6621852 Spread spectrum wireless communication system  
A wireless communication system employing spread-spectrum communication techniques includes a plurality of base stations that may be coupled directly or indirectly to a telephone network, and may...
6615050 Apparatus and method for reducing message collision between mobile stations simultaneously accessing a base station in a CDMA cellular communication system  
Collisions between messages simultaneously transmitted by multiple spread-spectrum transmitters are reduced by distributing the transmissions over the available resources of the receiver. The...
6611548 Multipath processor  
A multipath processor processes a plurality of groups of spread-spectrum signals. Each group has a plurality of spread-spectrum signals. A first plurality of spread-spectrum signals is despread...
6594500 Method and apparatus for controlling transmit power thresholds based on classification of wireless communication subscribers  
The present invention provides a method and apparatus for allowing a base station or base station controller to adjust transmissions to fixed location subscribers in closed-loop communication...
6580906 Authentication and security in wireless communication system  
A communication system having a wireless trunk for connecting multiple phone lines over wireless communication links to a cellular network comprises a central telephone switch, such as a private...
Matches 1 - 50 out of 248 1 2 3 4 5 >