| Patent Number |
Title Of Patent |
Date Issued |
| RE38627 |
High capacity spread spectrum channel |
October 19, 2004 |
| A high-capacity-spread-spectrum transmitter and receiver, for use over a communications channel. A demultiplexer demultiplexes message data into a plurality of demultiplexed-data signals. A transmitter-generic-chip-code generator generates a generic-chip-code signal and a plurality of |
| 7489672 |
RLAN wireless telecommunication system with RAN IP gateway and methods |
February 10, 2009 |
| Mobility management in a wireless network having a Radio Access Network Internet Protocol (RAN IP) gateway enabling voice connectivity to the public Internet is provided. The system may serve as a stand-alone system or be incorporated into a UMTS network with a conventional Core Network |
| 7133412 |
Single user detection user equipment |
November 7, 2006 |
| A code division multiple access user equipment is used in receiving a plurality of data signals over a shared spectrum. Each received data signal experiences a similar channel response. A combined signal of the received data signals is received over the shared spectrum. The combined |
| 7130330 |
Receiver for wireless telecommunication stations and method |
October 31, 2006 |
| The present invention is directed to an improved telecommunication receiver for receiving wireless multi-path communication signals. A novel RAKE receiver and a time diverse integration system for the calculation of the relative power of received signal samples are provided. Preferab |
| 7126978 |
Single user detection base station |
October 24, 2006 |
| A code division multiple access base station is used in receiving a plurality of data signals over a shared spectrum. Each received data signal experiences a similar channel response. A combined signal of the received data signals is received over the shared spectrum. The combined si |
| 7126962 |
Single user detection user equipment |
October 24, 2006 |
| A code division multiple access user equipment is used in receiving a plurality of data signals over a shared spectrum. Each received data signal experiences a similar channel response. A combined signal of the received data signals is received over the shared spectrum. The combined |
| 7126961 |
Single user detection base station |
October 24, 2006 |
| A code division multiple access base station is used in receiving a plurality of data signals over a shared spectrum. Each received data signal experiences a similar channel response. A combined signal of the received data signals is received over the shared spectrum. The combined si |
| 7126960 |
Single user detection user equipment |
October 24, 2006 |
| A code division multiple access user equipment is used in receiving a plurality of data signals over a shared spectrum. Each received data signal experiences a similar channel response. A combined signal of the received data signals is received over the shared spectrum. The combined |
| 7106708 |
Method for implementing fast dynamic channel allocation (F-DCA) call admission control in radio |
September 12, 2006 |
| A method for call admission control in a fast dynamic channel allocation wireless communication system begins by requesting that a call be admitted. System measurement results are obtained and timeslot sequences are generated by determining a figure of merit for each timeslot. A code |
| 7103092 |
Channel estimation for time division duplex communication systems |
September 5, 2006 |
| A single transmitter transmits K communication bursts in a shared spectrum in a time slot of a time division duplex communication system. Each burst has an associated midamble sequence, a receiver knowing the midamble sequences of the K bursts. The receiver receives a vector correspondin |
| 7092720 |
Method for characterizing base station capabilities in a wireless communication system and for a |
August 15, 2006 |
| A method for characterizing base station processing and memory capabilities in a wireless communications system enables resource allocation to take these capabilities into account and to make allocations that avoid base station overload. A method for allocating resources in a wireles |
| 7085228 |
Adaptive radio resource management for wireless local area networks |
August 1, 2006 |
| In a wireless communication system including an access point and at least one wireless transmit/receive unit (WTRU), a method for adaptive radio resource management begins by examining a frame error rate value of a WTRU. Then, a channel utilization value of the WTRU and a current data |
| 7068618 |
Dynamic link adaption for time division duplex (TDD) |
June 27, 2006 |
| A TTD system implements dynamic link adaptation by adding or changing control information to notify the receiver which timeslots and codes are currently active and which timeslots should be avoided. The system synchronizes the transmitter and the receiver such that the receiver knows |
| 7027495 |
Acquisition circuit for low chip rate option for mobile telecommunication system |
April 11, 2006 |
| A User Equipment (UE) has a circuit that performs the acquisition for the low chip rate option of the Universal Mobile Telecommunication System (UMTS) Time Division Duplex (TDD) standard as formulated by the Third Generation Partnership Project (3GPP). The present invention implements |
| 7010329 |
System and method for battery conservation with assistance from the network and radio resource m |
March 7, 2006 |
| A method for battery conservation in a wireless communication system begins with requesting a battery level measurement from a wireless transmit/receive unit (WTRU) by a radio network controller (RNC). The battery level is measured at the WTRU and is reported to the RNC. The battery |
| 7010020 |
Code tracking loop with automatic power normalization |
March 7, 2006 |
| The present invention is for a receiver incorporated into User Equipment (UE) or base stations of a code division multiple access (CDMA) communication system. The UE and base station are in communication with one of the plurality of base stations and receives a communication signal t |
| 6993002 |
Code power measurement for dynamic channel allocation |
January 31, 2006 |
| Resource units are assigned within a cell of a wireless time division duplex communication system using code division multiple access. Each resource units is associated with a time slot and a code. For selected ones of the cell's resource units, the code interference level is measure |
| 6985457 |
Dynamic link adaption for time division duplex (TDD) |
January 10, 2006 |
| A UE system implements dynamic link adaptation by adding or changing control information to notify a receiver which timeslots and codes are currently active and which timeslots should be avoided. The UE provides synchronization such that the receiver knows which timeslots and codes t |
| 6980615 |
Base station synchronization |
December 27, 2005 |
| The present invention is a method for adjusting a timing of at least one first base station to maintain synchronization with a neighboring base station. An estimation of a timing accuracy associated with each said at least one first base station with respect to said neighboring base stat |
| 6973523 |
Code division multiple access modem interface |
December 6, 2005 |
| A modem interface transfers data between a high data rate interface and a wireless interface. The modem interface has a plurality of parallel data highways. Each data highway has frames with time slots for transferring data. The plurality of highways outputs data to the high data rate |
| 6963546 |
Multi-user detection using an adaptive combination of joint detection and successive interface c |
November 8, 2005 |
| A time division duplex communication system using code division multiple access transmits a plurality of data signals over a shared spectrum in a time slot. A combined signal is received over the shared spectrum in the time slot. The plurality of data signals are grouped into a plurality |
| 6961398 |
Base station synchronization for wireless communication systems |
November 1, 2005 |
| The present invention is a system and method for time synchronizing a plurality of base stations in a wireless communication system. The system determines an estimate of a timing accuracy associated with each base station. When a base stations's timing accuracy is over a threshold, the |
| 6950411 |
Cancellation of pilot and traffic signals |
September 27, 2005 |
| A mobile user receiver having a cancellation system for removing selected signals from a traffic signal prior to decoding includes a receiver having a system input for receiving communication signals from a transmitter over an air interface. The system input is supplied to a traffic sign |
| 6944253 |
Circuit and software for generating a stream cipher |
September 13, 2005 |
| A circuit or software generates a cipher stream. The software models components or the circuit comprises a first and a second plurality of linear feedback shift registers (LFSR). A first of the second plurality of LFSR has a clock signal as a clock input and others of the second plur |
| 6684064 |
Dynamic bias for RF power amplifiers |
January 27, 2004 |
| A system and method for dynamically adjusting the operating bias of an RF transmitter amplifier in response to a power control signal. The invention provides high-efficiency RF power amplification for applications where the available power source is limited. The invention uses a power co |
| 5748687 |
Spreading code sequence acquisition system and method that allows fast acquisition in code divis |
May 5, 1998 |
| Methods for generating code sequences that have rapid acquisition properties and apparatus which implement the methods by processing spreading codes on in-phase and quadrature channels. A first method combines two or more short codes to produce a long code. This method may use many t |
| 5663956 |
CDMA communications and geolocation system and method |
September 2, 1997 |
| A spread-spectrum CDMA communications system for locating remote units, and for communicating message data between a plurality of remote units and a base station. The spread-spectrum CDMA communications system includes a plurality of base stations and a plurality of remote units. A base |
| 5633889 |
Phased array spread spectrum system and method |
May 27, 1997 |
| A phased array spread spectrum system for maximizing signal strength of a spread-spectrum signal with multipath through the use of receiving means, delaying means, combining means, despreading means, generating means, storing means and comparing means. The receiving means receives a |
| 5631921 |
Adaptive power control for a spread spectrum communications system and method |
May 20, 1997 |
| An apparatus for adaptive-power control of a spread-spectrum transmitter of a mobile station operating in a cellular-communications network using spread-spectrum modulation. A base station transmits a first spread-spectrum signal. A mobile station has an automatic-gain-control circui |
| 5442652 |
Broadcast synchronized communication system |
August 15, 1995 |
| A communication system in accordance with the invention employs a broadcast signal for synchronization of the transmitters and receivers in the system without use of a special base transmitter for synchronizing signal transmissions. Each transmitter having a pre-assigned time slot counts |
| 5422908 |
Phased array spread spectrum system and method |
June 6, 1995 |
| A phased array spread spectrum system for maximizing signal strength of a spread-spectrum signal with multipath. A received spread-spectrum signal is delayed with respect to a phased version of the spread-spectrum signal. The delayed spread-spectrum signal is combined with the phased ver |
| 5345467 |
CDMA cellular hand-off apparatus and method |
September 6, 1994 |
| An apparatus for controlling hand-off in a spread-spectrum-CDMA-communications system, for radio devices moving from one cell to another, with each cell having a base station transmitting spread spectrum signals with generic-chip-code signals. A radio device includes a cellular anten |
