| Patent Number |
Title Of Patent |
Date Issued |
| RE38523 |
Spreading code sequence acquisition system and method that allows fast acquisition in code divis |
June 1, 2004 |
| 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 |
| RE35402 |
CDMA/TDMA spread-spectrum communications system and method |
December 17, 1996 |
| A spread-spectrum transmitter and receiver using code division multiple access with time division multiple access technology for spread-spectrum communications. At a base station, a spread-spectrum transmitter includes a multiplexer for time multiplexing a synchronization-code signal and |
| 7620365 |
Internet based digital satellite radio system and associated methods for providing indoor recept |
November 17, 2009 |
| A digital satellite radio system includes a content server for providing digital satellite radio channels, a satellite for broadcasting the digital satellite radio channels, and a terrestrial repeater for broadcasting the digital satellite radio channels. A micro-repeater receives a |
| 7620123 |
Receiver for estimating signal magnitude, noise power, and signal-to-noise ratio of received sig |
November 17, 2009 |
| An improved receiver and method estimate one or more parameters, such as amplitude and signal-to-noise ratio, of a received signal, such as an M-QAM or q-ASK signal. The amplitude of an M-QAM signal is estimated based upon known or ascertainable phase information regarding a plurality |
| 7620063 |
Method for clear channel assessment optimization in a wireless local area network |
November 17, 2009 |
| A method and apparatus are directed toward optimizing clear channel assessment (CCA) parameters in a wireless local area network having an access point (AP) and at least one station. An upper bound and a lower bound for an energy detect threshold (EDT) parameter are determined. A val |
| 7620009 |
Wireless communication method and apparatus for reporting traffic volume measurement information |
November 17, 2009 |
| A wireless communication method and apparatus for reporting traffic volume measurement (TVM) information used to support enhanced uplink (EU) data transmissions between a wireless transmit/receive unit (WTRU), i.e., a mobile station, and a Node-B. After storing EU data in a buffer, the W |
| 7616956 |
Measurement request report extensions for media independent handover |
November 10, 2009 |
| A method for generating a media independent handover (MIH) trigger in a wireless local area network begins by sending a measurement report request message to a measurement entity in the network. The measurement entity takes the measurements and sends a measurement report response mes |
| 7616677 |
Downlink power control with limit to dynamic range using detection of downlink transmit power |
November 10, 2009 |
| An apparatus and method is provided for dynamic range power control of a wireless downlink communication signal, such that target signal quality adjustments are held temporarily when it is apparent that transmit power control commands will not produce the desired response at the tran |
| 7613226 |
Method and apparatus for transferring signals in a wireless communication system |
November 3, 2009 |
| Data is transferred in a wireless communication system, such as a wireless spread spectrum communication system. A plurality of transmitting antennas are provided. Data is encoded to produce a plurality of data streams for each of the plurality of codes. The plurality of data streams |
| 7613159 |
Transmission power level estimation |
November 3, 2009 |
| A transmission power level of a selected user is estimated in a code division multiple access (CDMA) communication system. An initial estimate of a transmit power level associated with the selected user is determined. A transmit power level of users of the system other than the selec |
| 7613157 |
Wireless communication method and apparatus for processing enhanced uplink scheduling grants |
November 3, 2009 |
| A method and apparatus for processing enhanced uplink scheduling grants are disclosed. A wireless transmit/receive unit (WTRU) detects an absolute grant (AG) and a relative grant (RG). Once the WTRU detects an AG or a RG, a new serving grant (SG) is generated and a hybrid automatic r |
| 7613153 |
Access points with selective communication rate and scheduling control and related methods for w |
November 3, 2009 |
| The present invention is directed to methods and wireless communication devices that are configured to enhance communication capacity in a wireless network. In one aspect of the invention various scheduling processes and schedulers for the transmissions of data packets are disclosed. |
| 7613119 |
Self-configurable wireless local area network node |
November 3, 2009 |
| In a wireless local area network including an access controller (AC) and an access points (AP), the AC transmits a functionality inquiry to the AP. Upon receiving the inquiry, the AP transmits a query response including the functional capabilities of the AP. The AC then generates a m |
| 7610059 |
Method and system wherein timeslots allocated for common control channels may be reused for user |
October 27, 2009 |
| A method and system is disclosed wherein timeslots designated in a wireless communication system as Common Physical Channel (CPCH) timeslots may be reused for user traffic. A CPCH timeslot used in a first cell may be reused by a second cell, assuming the first and second cells transmit |
| 7609794 |
Reduced complexity sliding window based equalizer |
October 27, 2009 |
| Data estimation is performed in a wireless communication system using both oversampling and multiple reception antennas. A receive vector is produced for each antenna at a sampling interval which is a multiple of the chip rate of the received signal. A channel response matrix is prod |
| 7609790 |
Joint signal demodulation in a low and high data rate channel environment |
October 27, 2009 |
| A receiver is capable of demodulating both high data rate and low data rate transmissions. An antenna receives the high and low data rate transmissions, as a received signal. An interference canceling device cancels a contribution of at least one shared/common channel from the receiv |
| 7609785 |
Mitigation of interference in cell search by wireless transmit and receive units |
October 27, 2009 |
| A wireless transmit receive unit (WTRU) provides facilitation of cell search. In one embodiment, received samples are split into a plurality of sample sets for processing. Each of the sets is processed and an accumulated result is divided by an estimated noise value. In another embod |
| 7609750 |
Segment-wise channel equalization based data estimation |
October 27, 2009 |
| Data is estimated of a plurality of received spread spectrum signals by a wireless communication apparatus. The plurality of received communications are received in a shared spectrum. The received communications are sampled to produce a received vector of sequential samples. The rece |
| 7609632 |
Scheduling mechanism for MAC entity |
October 27, 2009 |
| A code division multiple access (CDMA) radio network controller (RNC) comprises a medium access controller-controlling/shared (MAC-c/sh) entity. The MAC-c/sh entity has a scheduling mechanism managing a forward access channel (FACH) resources. The scheduling mechanism schedules data |
| 7606295 |
Generalized rake receiver for wireless communication |
October 20, 2009 |
| The present invention is related to a generalized rake receiver for a wireless communication system. The rake receiver comprises a plurality of finger correlators and a plurality of escort correlators. Each finger correlator demodulates each multipath components of the transmitted si |
| 7606207 |
User equipment and base station performing data detection using a scalar array |
October 20, 2009 |
| A wireless transmit receive unit (WTRU) recovers data from a plurality of data signals received as a received vector. The WTRU determines data of the received vector by determining a Cholesky factor of an N by N matrix and using the determined Cholesky factor in forward and backward |
| 7603133 |
Efficient frame tracking in mobile receivers |
October 13, 2009 |
| A method for determining the validity of a most significant path in a wireless communication system wherein data is transmitted in frame units in a multipath environment begins by accumulating a correlated data sequence N times, each time at a frame offset apart from the previous tim |
| 7602855 |
Method and apparatus for singular value decomposition of a channel matrix |
October 13, 2009 |
| A method and apparatus for decomposing a channel matrix in a wireless communication system are disclosed. A channel matrix H is generated for channels between transmit antennas and receive antennas. A Hermitian matrix A=H.sup.HH or A=HH.sup.H is created. A Jacobi process is cyclicall |
| 7602760 |
Resource allocation to users in slotted code division multiple access systems using beams |
October 13, 2009 |
| The invention includes several embodiments for slot assignment in code division multiple access communication systems. Some of the embodiments relate to fixed beams and others relate to adaptive arrays. One embodiment for fixed beams assigns slots by first detecting a beam having the |
| 7602348 |
Three-dimensional antenna fabrication from a two-dimensional structure |
October 13, 2009 |
| A method for making an antenna array includes dividing a flexible dielectric substrate into a plurality of folding sections, with each folding section being integrally connected to an adjacent folding section along a shared boundary therebetween. The folding sections are co-planar wi |
| 7599832 |
Method and device for encoding speech using open-loop pitch analysis |
October 6, 2009 |
| The present invention is a synthetic speech encoding device that produces a synthetic speech signal which closely matches an actual speech signal. The actual speech signal is digitized, and excitation pulses are selected by minimizing the error between the actual and synthetic speech sig |
| 7599707 |
Method and system for controlling transmission power of a downlink signaling channel based on en |
October 6, 2009 |
| A method and system for controlling the transmission power of at least one downlink (DL) enhanced uplink (EU) signaling channel such that enhanced dedicated channel (E-DCH) DL signaling is delivered efficiently and reliably. The system includes at least one wireless transmit/receive unit |
| 7599668 |
Method and apparatus for reducing antenna correlation |
October 6, 2009 |
| The present invention is related to a method and apparatus for reducing antenna correlation between multiple antennas. A transmitter generates at least two beams with a plurality of antennas. The generated beams are spatially separated to point away each other. Therefore, the transmitted |
| 7599515 |
Wireless communication method and apparatus for generating, watermarking and securely transmitti |
October 6, 2009 |
| A method and apparatus for securing transmission of content created by a content generation device embedded in a wireless transmit/receive unit (WTRU) by determining what type of watermarks should be applied to the content and incorporating the watermarks in the content. The WTRU inc |
| 7599344 |
Method and apparatus for reducing multi-user processing in wireless communication systems |
October 6, 2009 |
| A method and apparatus is disclosed for reducing multi-user processing at the receiver in wireless communication systems. Detected codes are grouped according to channel impulse response and a parent code is identified for each group of detected codes. A matrix A is constructed and j |
| 7599340 |
Method and apparatus or eliminating interference caused by hidden nodes |
October 6, 2009 |
| A method and system for eliminating interference caused by hidden nodes is disclosed. An initiator control message is defined for an initiator, (typically a wireless station (STA)), in order to begin an aggregate frame exchange with at least one responder. The initiator control message |
| 7599339 |
Method and system for transferring wireless transmit/receive unit-specific information |
October 6, 2009 |
| The present invention is related to a method and system for transferring wireless transmit/receive unit (WTRU)-specific information to support enhanced uplink (EU) operation in a wireless communication system. A radio network controller (RNC) obtains WTRU-specific information, and tr |
| 7598911 |
Method and system for positioning mobile units based on angle measurements |
October 6, 2009 |
| A method and system for positioning mobile units using angle measurements taken by neighboring mobile units is disclosed. A selected mobile unit and mobile units in the vicinity of the selected mobile unit are selectively instructed to measure and report information related to the po |
| 7596387 |
System for efficiently covering a sectorized cell utilizing beam forming and sweeping |
September 29, 2009 |
| A primary station for a wireless communication system transmits and receives communications within a sectorized cell with at least one secondary station. The primary station transmits and receives signals within a beam; and directs the signal transmission and reception as a shaped be |
| 7596171 |
Data detection for codes with non-uniform spreading factors |
September 29, 2009 |
| A plurality of communication signals is received. Each communication signal has an associated code. At least two of the communication signals has a different spreading factor. The associated codes have a scrambling code period. A total system response matrix has blocks. Each block has |
| 7596125 |
Adjusting the amplitude and phase characteristics of transmitter generated wireless communicatio |
September 29, 2009 |
| A method and system for adjusting the amplitude and phase characteristics of wireless communication signals generated by an analog radio transmitter, based on transmit power control (TPC) signals received by a base station (BS) and known characteristics of a power amplifier (PA) incl |
| 7596117 |
Scheduling data transmission by medium access control (MAC) layer in a mobile network |
September 29, 2009 |
| A method for use by a MAC common channel of an RNC to select a transport format combination (TFC) whereby a candidate set of TFCs is selected, and a TFC is chosen from the set of TFCs according to selection criteria. |
| 7596112 |
Method and apparatus for rate compatible dirty paper coding |
September 29, 2009 |
| A medium access control (MAC) entity first computes an achievable rate region based on a total transmit power limit and a channel gain of each of a plurality of WTRUs. Next, the MAC entity selects an order of DPC among the WTRUs. A rate set for use in transmitting to the WTRUs is then |
| 7596105 |
User equipment for synchronizing to a TDD base station |
September 29, 2009 |
| A time division duplex (TDD) user equipment (UE) is configured to synchronize to a TDD base station. The UE includes a receiver configured to receive a primary synchronization code along with a plurality of secondary synchronization codes from a TDD base station. The TDD base station |
| 7593742 |
Received communication signal processing methods and components for wireless communication equip |
September 22, 2009 |
| A wireless transmit receive unit (WTRU) and methods are used in a wireless communication system to process sampled received signals to establish and/or maintain wireless communications. A selectively controllable coherent accumulation unit produces power delay profiles (PDPs). A sele |
| 7593461 |
Multi-user detection using equalization and successive interference cancellation |
September 22, 2009 |
| A plurality of signals are received in a shared spectrum. Samples of the received user signals are produced as a received vector. The received vector is segmented into a plurality of segments. For each segment, successively determining symbols for each user or group of signals (the g |
| 7593460 |
Macro diversity equalization system and method |
September 22, 2009 |
| An equalization system and method which supports macro diversity as well as large delay spread channels with a minimal increase in complexity is disclosed. The equalization system includes a path searcher, an optional search scheduler, a multi-equalizer manager, an alignment buffer, a |
| 7593453 |
Efficient multipath centroid tracking circuit for a code division multiple access (CDMA) system |
September 22, 2009 |
| A spread spectrum signal having an associated code is tracked at a receiver. A plurality of components of the spread spectrum signal are despread using the associated code. Each of the plurality of components has a different code phase than all others of the plurality of code phases. |
| 7593357 |
Transmit processing using receiver functions |
September 22, 2009 |
| Data is to be transmitted in a code division multiple access communication system. A channel response is provided as a channel response matrix H approximating a channel that the data will experience after transmission. The data is spread and the spread data is processed with the channel |
| 7590386 |
Method for control of contention-based wireless access |
September 15, 2009 |
| The present invention is a method for controlling access to a contention-based communication channel. Error types of a transmitted communication signal over the communication channel are classified and corresponding parameters of the communication channel are adjusted in response to |
| 7590192 |
Method and apparatus for computing SIR of time varying signals |
September 15, 2009 |
| A method and apparatus for correcting symbols of a common pilot channel (CPICH) to generate an accurate signal-to-interference ratio (SIR) estimate in a wireless communication system are disclosed. In one embodiment, a non-stationary mean of a group of the CPICH symbols is estimated, |
| 7590172 |
Low bias estimation of small signal-to-noise ratio |
September 15, 2009 |
| A user equipment includes an estimator. The estimator is configured to select a first estimate of a signal-to-noise (SNR) ratio, calculate a first amplitude and first noise variance, calculate a second amplitude and a second noise variance, calculate a second SNR, calculate a resolut |
| 7590080 |
Channel assignment to maximize battery efficiency in wireless systems |
September 15, 2009 |
| A method for maximizing battery efficiency of a wireless transmit/receive unit (WTRU) is disclosed. In one embodiment, a predetermined number of high-speed shared control channels (HS-SCCHs) are identified and WTRUs are instructed to monitor the HS-SCCHs according to a predetermined |
| 7587173 |
Antenna steering for an access point based upon spatial diversity |
September 8, 2009 |
| A method for operating an access point in a wireless local area network is provided, wherein the access point includes a directional antenna for communicating with at least one remote station. The method includes communicating with a selected remote station using a current angle of the |
| 7586874 |
Wireless communication method and apparatus for providing multimedia broadcast services |
September 8, 2009 |
| A system and method for configuring the system for configuring a wireless multi-cell communication to provide multimedia broadcast services (MBMS) to a plurality of wireless transmit/receive units (WTRUs). The cells of the communication system are organized into a plurality of sets of on |
