| Patent application number | Description | Published |
|---|
| 20080242294 | DETERMINING PER SECTOR RECEIVED POWER LEVEL - At a mobile device, a total received power represents signals received from all access points. In order to calculate an appropriate transmit power for communication with a single access point, a mobile device determines a per sector received power level. The mobile device can ascertain a time-domain channel response from each access point pilot signal, ascertain a received digital power lever per sector from each access point pilot signal and, based in part on the digital power level, calculate a received power level from each access point. A per sector received power level can be utilized to conserve battery power and/or to reduce interference in a wireless communications network. | 10-02-2008 |
| 20080242337 | DIGITAL AND ANALOG POWER CONTROL FOR AN OFDMA/CDMA ACCESS TERMINAL - Aspects describe controlling a power level for an access terminal in a wireless communication system that utilizes multiple modulation waveforms. The power can be controlled after an Access Grant is received in response to an Access Probe until the mobile device transitions into a steady state. A reference power can be continuously monitored and a setting of a power amplifier can be modified only when the reference power changes. A digital gain of a reverse data channel can be adjusted relative to the reference power level. | 10-02-2008 |
| 20080298452 | FAST SQUARE ROOT ALGORITHM FOR MIMO EQUALIZATION - Systems and methodologies are described that facilitate equalization of received signals in a wireless communication environment. Using multiple transmit and/or receive antennas and MIMO technology, multiple data streams can be transmitted within a single tone. During equalization, receivers can separate data received within a tone into individual data streams. The equalization process generally is computationally expensive. Equalizer functions include the inverse operation, which can be computed using the fast square root method; however, the fast square root method involves large numbers of computations for a set of matrices, where the size of a matrix in the set of matrices increases with the number of transmit or receive antennas. Utilizing a modification of the fast square root method, a subset of the elements of the matrices can be selected and updated to reduce the number and/or complexity of computations. | 12-04-2008 |
| 20080311908 | Method and Apparatus for Zonecode-Based Registration in Active State in Wireless Communication System - A method and apparatus for ZoneCode-based registration is described. A list of RegistrationZoneCodes is stored, wherein the list of RegistrationZoneCodes is associated with subnets visited by the access terminal. It is determined if a protocol cache information is keyed by a (Subnet, RegistrationZoneCode) pair. The cached information is deleted when the (Subnet, RegistrationZoneCode) pair is deleted from a RegistrationZoneCodeList. N | 12-18-2008 |
| 20090028107 | APPARATUS AND METHOD FOR EFFICIENT TRANSMISSION OF ACKNOWLEDGEMENTS - Method and apparatus for transmission of information in multiple access communication system is described. Information from a plurality of access terminals is received. Alternatively, an access terminal determines what information needs to be sent to the access point. A determination is made as to whether sufficient resources, such as time, power level, or channels, are available to send an indication of acknowledgment. If sufficient resources are not available at the given time, the transmission of an indication of acknowledgment is delayed until sufficient resources are available. | 01-29-2009 |
| 20090046713 | METHOD AND APPARATUS FOR TRANSMITTING NON-DECODABLE PACKETS - Acknowledgments (ACKs/NACKs) are suppressed when transmitting non-decodable packets in a communication system that utilizes HARQ. Non-decodable packets are transmitted to save system bandwidth and make the overall spectral efficiency higher. The transmitter and receiver know that in HARQ when the transmitter transmits a non-decodable packet to the receiver, this will cause the receiver to automatically transmit back a NACK. The transmitter and receiver exploit this fact by discarding and/or not transmitting the NACK (respectively). | 02-19-2009 |
| 20090080508 | FAST SQUARE ROOT ALGORITHM FOR MIMO EQUALIZATION - Systems and methodologies are described that facilitate equalization of received signals in a wireless communication environment. Using multiple transmit and/or receive antennas and MIMO technology, multiple data streams can be transmitted within a single tone. During equalization, receivers can separate data received within a tone into individual data streams. The equalization process generally is computationally expensive. Equalizer functions include the inverse operation, which can be computed using the fast square root method; however, the fast square root method involves large numbers of computations for a set of matrices, where the size of a matrix in the set of matrices increases with the number of transmit or receive antennas. Utilizing a modification of the fast square root method, a subset of the elements of the matrices can be selected and updated to reduce the number and/or complexity of computations. | 03-26-2009 |
| 20090147693 | METHOD AND APPARATUS FOR MONITORING OTHER CHANNEL INTERFERENCE IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for monitoring other channel interference in wireless communication system are described. An OSI Monitor Set (OSIMonitorSet) is updated at the beginning of every superframe of a reverse link (RL) serving sector. A list of Pilot PN's (PilotPN's) of the sectors whose pilot strength (PilotStrenth) is larger than or equal to an other sector interference Monitor Threshold (OSIMonitorThreshold) in an OSIMonitorSet is provided, wherein the PilotPN and the PilotStrength are fields in an Overhead Parameter List (OverheadParameterList) of an Overhead Message Protocol and the OSIMonitorThreshold is a configuration attribute of the Overhead Message Protocol. The PilotPN of the reverse link Serving Sector (RLServingSector) are excluded. It is determined if the size of the list OSI Monitor Set Size (OSIMonitorSetSize) is larger than or equal to N | 06-11-2009 |
| 20090149172 | SUPERVISING QUICKCHANNELINFO BLOCK, EXTENDEDCHANNELINFO MESSAGE AND SECTORPARAMETERS MESSAGE IN WIRELESS COMMUNICATION SYSTEMS - A method and apparatus for supervising a QuickChannelInfo block, ExtendedChannelInfo message and SectorParameters message in a wireless communication is described. A QuickChannelInfo supervision timer for T | 06-11-2009 |
| 20090213788 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING A SYSTEMINFO BLOCK IN AN ACTIVE STATE IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for transmitting a SystemInfo block in an Active state in a wireless communication system is described. The SystemInfo block is transmitted every N | 08-27-2009 |
| 20090213789 | METHOD AND APPARATUS FOR PROCESSING IN READ SYSTEMINFO STATE IN A WIRELESS COMMUNICATION SYSTEMS - A method and apparatus for processing in Read SystemInfo state in a wireless communication network, the method comprising issuing a ControlChannelMAC.Activate command, issuing a OverheadMessages.Activate command and determining if a SystemInfoBlock is received within T | 08-27-2009 |
| 20090219917 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING AN EXTENDEDCHANNELINFO MESSAGE IN AN ACTIVE STATE IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for transmitting and receiving an ExtendedChannelInfo message. The method comprises broadcasting the ExtendedChannelInfo message over a Forward Traffic Channel Medium Access Control (MAC); transmitting the ExtendedChannelInfo message in superframes, wherein the superframe number is divisible by N | 09-03-2009 |
| 20090245121 | METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING A QUICKCHANNELINFO BLOCK IN ACTIVE STATE IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for transmitting and processing a QuickChannelInfo block is described. It is determined if a superframe is with odd superframe index. A QuickChannelInfo block is transmitted in every superframe with an odd superframe index. The contents of the QuickChannelInfo block are changed in accordance with the QuickChannelInfo Validity field of the QuickChannelInfo block. It is determined if multi-carrier mode is MultiCarrierOn. The QuickChannelInfo block is transmitted on each carrier. The QuickChannelInfo block is transmitted over the communication. The QuickChannelInfo block is processed after the QuickChannelInfo block is received over a communication link. | 10-01-2009 |
| 20100029211 | DYNAMIC IoT SETPOINTS AND INTERFERENCE CONTROL - Reverse link interference can be controlled by utilizing a dynamic and changeable IoT setpoint, which is a quantitative measurement of total interference received at a base station. The interference can occur when a mobile device in an adjacent sector is communicating over the reverse link. The IoT setpoint can be changed based on conditions occurring in the sector and/or scheduling information for the future. A fast up indicator (Up+) can be transmitted for reverse link interference, which allows the receiving device to take advantage of the fact that additional interference created will not affect the sector. An interference control action can be transmitted in an Other Sector Interference Bit (OSIB) channel over the air or over the backhaul. The interference control action can be determined as a function of the dynamic IoT setpoint. | 02-04-2010 |
| 20100029265 | SYSTEMS AND METHODS THAT UTILIZE A CAPACITY-BASED SIGNAL-TO-NOISE RATIO TO PREDICT AND IMPROVE MOBILE COMMUNICATION - Techniques for utilizing a capacity-based effective signal-to-noise ratio (SNR) to improve wireless communication are described herein. In an embodiment, a mobile terminal can determine the effective SNR from a forward link channel using pilot/data symbols. The mobile terminal can convey the effective SNR to a base station. In order to minimize transmission overhead, the mobile terminal can quantize the effective SNR prior to transmitting it to the base station. In another embodiment, the base station can determine the effective SNR from a reverse link. The base station can utilize the effective SNR to facilitate scheduling transmissions from the mobile terminal, transmitting power control commands to the mobile terminal, and determining a supporting data rate for the mobile terminal, for example. Suitable SNRs include constrained, unconstrained, average, and/or approximated effective SNRs. In addition, various filters, such as an averaging filter, can be utilized to further process the effective SNR. | 02-04-2010 |
| 20100074219 | Methods and Apparatus for Reverse Link Timing Correction - Methods and apparatus for reverse link timing correction in a wireless communication device. In particular, when a handoff of the device from a first sector currently serving the device to a second sector not currently serving the device is detected, a first function linking timing correction of a reverse link of the device to forward link timing corrections is changed to a second function for timing correction. In particular, the second function is configured to correct reverse link timing during a time period of either during or for a predetermined period after a handoff of the device from the first sector to the second sector, where the second function is based on a criterion different from criteria of the first function. | 03-25-2010 |
| 20100110976 | A METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING A SECTORPARAMETERS MESSAGE IN AN ACTIVE STATE IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for transmitting and receiving a SectorParameters message in an Active state is provided. The method comprises transmitting a SectorParameters message over a Forward Traffic Channel Medium Access Control(MAC) in superframe number wherein the superframe number is divisible by N | 05-06-2010 |
| 20100238896 | ON-HAND REVERSE-LINK PILOT TRANSMISSION - Pilots are transmitted on demand on a reverse link and used for channel estimation and data transmission on a forward link. A base station selects at least one terminal for on-demand pilot transmission on the reverse link. Each selected terminal is a candidate for receiving data transmission on the forward link. The base station assigns each selected terminal with a time-frequency allocation, which may be for a wideband pilot, a narrowband pilot, or some other type of pilot. The base station receives and processes on-demand pilot transmission from each selected terminal and derives a channel estimate for the terminal based on the received pilot transmission. The base station may schedule terminals for data transmission on the forward link based on the channel estimates for all selected terminals. The base station may also process data (e.g., perform beamforming or eigensteering) for transmission to each scheduled terminal based on its channel estimate. | 09-23-2010 |
| 20100315225 | IDENTIFICATION AND CONNECTIVITY GATEWAY WRISTBAND FOR HOSPITAL AND MEDICAL APPLICATIONS - A communication gateway wristband serves as a source of patient identification and as an interface between a personal area network (PAN) of miniaturized electronic medical sensors on a patient and a wireless wide-area network (WWAN) such as a hospital network. The gateway wristband includes a PAN transceiver which can establish wireless data links with wireless medical sensors, a WWAN transceiver which can establish a wireless data link with WWAN infrastructure, a memory which stores a patient identifier, and a processor which receives data via the PAN transceiver and relays the patient identifier and the received data to an external network via the WWAN transceiver. The processor manages communications with both the PAN and WWAN transceivers, stores received sensor data in memory, and translates data from the PAN protocol to the WWAN protocol so that sensor data is relayed to the hospital infrastructure. | 12-16-2010 |
| 20110053558 | SECURING PAIRING VERIFICATION OF DEVICES WITH MINIMAL USER INTERFACES - A method, system and devices for enabling secure pairing between two communication devices equipped with a minimal user interface includes determining a verification pattern based upon security information exchanged between the two communication devices and presenting the verification pattern in a manner that can be perceived by a user who can determine whether the verification patterns are the same. The verification patterns may be presented as flashing light displays, such as flashing sequences of a light emitting diode, or as sounds, such as tones or click patterns emitted by a speaker. If a user perceives that the verification patterns emitted by both communication devices are the same, the user may so indicate by pressing a button on each of the devices. Obtaining such user confirmation of the verification patterns enables establishing a secure pairing between the two communication devices that is protected from active and passive eavesdropping. | 03-03-2011 |
