Patents Represented by Attorney Philip Wadsworth
  • Patent number: 8209332
    Abstract: Techniques for efficient storage and retrieval of Preferred Roaming Lists are disclosed. In one aspect, PRL entries are stored in two tables. One table contains records that are common to two or more PRL entries. Another table stores any information that is unique to a PRL entry, as well as an indicator of which common record is associated with it. The common record is concatenated with the unique information to generate the uncompressed PRL entry. Various other aspects of the invention are also presented. These aspects have the benefit of reducing the memory requirements for storing a PRL. In addition, time required to download the compressed PRL is reduced.
    Type: Grant
    Filed: October 24, 2006
    Date of Patent: June 26, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Don Nielsen Andrus, Roy Franklin Quick, Jr., Ramin Rezaiifar, Paul E. Bender, Rotem Cooper
  • Patent number: 7194051
    Abstract: Techniques to prevent fingers from merging. For each update command to adjust the timing of a particular “target” finger, a list of “candidate” fingers for which merging is to be prevented is determined. Detection for merging is then performed for each candidate finger, e.g., one at a time. For each candidate finger, a comparison is performed using the position of the target finger, the position of the candidate finger, and a merge threshold. A determination is then made whether merging is detected for the candidate finger based on the comparison result. The update command may be disallowed for the target finger if merging is detected for any candidate finger, and may be allowed if merging is not detected for all candidate fingers. A “preferred” target finger may be allowed to be adjusted even if merging is detected for a non-preferred candidate finger, which may be moved instead.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: March 20, 2007
    Assignee: Qualcomm Incorporated
    Inventors: Tao Li, Chandra Ramabhadra Murthy
  • Patent number: 7184426
    Abstract: In a data communication system capable of variable rate transmission, high rate packet data transmission improves utilization of the forward link and decreases the transmission delay. Data transmission on the forward link is time multiplexed and the base station transmits at the highest data rate supported by the forward link at each time slot to one mobile station. The data rate is determined by the largest C/I measurement of the forward link signals as measured at the mobile station. Upon determination of a data packet received in error, the mobile station transmits a NACK message back to the base station. The NACK message results in retransmission of the data packet received in error. The data packets can be transmitted out of sequence by the use of sequence number to identify each data unit within the data packets.
    Type: Grant
    Filed: March 25, 2004
    Date of Patent: February 27, 2007
    Assignee: Qualcomm, Incorporated
    Inventors: Roberto Padovani, Paul E. Bender, Peter J. Black, Matthew S. Grob, Jurg K. Hinderling, Nagabhushana T. Sindhushayana, Charles E. Wheatley, III
  • Patent number: 7170447
    Abstract: Methods and apparatuses for the processing of false alarms in position determination. At least one embodiment of the present invention estimates and uses measurement false alarm probabilities in the position determination process. In one embodiment, the estimated measurement false alarm probabilities are combined to determine the reliability of the determined position solution or the reliability of the set of measurements as a collection. In one embodiment, the estimated measurement false alarm probabilities are used in the isolation and elimination of faulty measurements. For example, the traditional geometry based metric for identifying a faulty measurement is further weighted according to the measurement false alarm probabilities in order to determine the faulty measurement.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: January 30, 2007
    Assignee: Qualcomm Incorporated
    Inventors: Wyatt T. Riley, Christopher Patrick
  • Patent number: 7171182
    Abstract: Techniques are described that facilitate the generation of different waveforms at different frequencies required for transmission and reception of wireless voice signals and wireless data signals. For example, a technique may include generating a first waveform in a wireless communication device using a frequency synthesizer, wherein the first waveform has a frequency associated with a voice communication standard, and generating a second waveform in the wireless communication device using the same frequency synthesizer, wherein the second waveform has a frequency associated with a wireless networking standard. In this manner, a wireless communication device can be improved and possibly simplified.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: January 30, 2007
    Assignee: Qualcomm Incorporated
    Inventor: Daniel F. Filipovic
  • Patent number: 7167458
    Abstract: Method and apparatus for use in a communication system (100) are provided for determining a number of times a message is transmitted on a paging channel. A controller (210, 401) selects a mobile station (102, 103, 104) to receive a general page message on a paging channel in communication system (100). A transceiver (400) transmits the general page message to the mobile station for a number of times until receiving a page response message from the mobile station. The controller (210, 401) determines a maximum number of times a channel assignment message to be transmitted to the mobile station, following receiving the page response message, based on the number of times the general page message is transmitted to the mobile station. The transceiver (400) transmits the channel assignment message to the mobile station up to the determined maximum number of times.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: January 23, 2007
    Assignee: Qualcomm, Incorporated
    Inventors: Parag A. Agashe, Paul E. Bender
  • Patent number: 7167461
    Abstract: Method and Apparatus for Processing Shared Sub-packets in a Communication System are disclosed. A communication system providing both voice and data services allows for a plurality of subscriber station to share a data sent in a unit of a forward traffic channel. To provide information required by the subscriber stations to determine that a unit of the forward traffic channel is shared, and to correctly decode the data, different control channel structures are described. Additionally, the control channel structures provides for more efficient signaling of code channel assignment.
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: January 23, 2007
    Assignee: Qualcomm Incorporated
    Inventors: Joseph P. Odenwalder, Edward G. Tiedemann, Jr., Tao Chen, Stein A. Lundby, Yongbin Wei, David Puig Oses
  • Patent number: 7164919
    Abstract: Techniques for scheduling terminals with different scheduling delays. Initially, the scheduling delay of each terminal is determined, and the total available transmit power and the link efficiency of each terminal are estimated. In a first scheme, the terminals are scheduled for data transmission based on the longest scheduling delay among the delays of all terminals. In a second scheme, each terminal is assigned a particular priority based on its scheduling delay, and the terminals are scheduled based on their assigned priorities. In a third scheme, the terminals are categorized into classes based on their scheduling delays. A percentage of the total available transmit power is allocated to each class, and the terminals in each class are scheduled based on the transmit power allocated to that class. In a fourth scheme, the terminals are scheduled for data transmission, and the schedule for each terminal is applied after its scheduling delay.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: January 16, 2007
    Assignee: Qualcomm Incorporated
    Inventor: Tao Chen
  • Patent number: 7164325
    Abstract: A Voltage Controlled Oscillator (VCO) in a battery-powered device, such as a cellular phone, can be configured to tune across a fairly wide frequency range using a relatively narrow control voltage range. The frequency response of the VCO can be temperature compensated by applying a temperature variable voltage source to varactors that form part of a VCO resonant circuit. The reference end of the varactor can be supplied with a temperature dependent voltage source that has a temperature dependence that substantially compensates for varactor temperature dependence. The temperature dependent voltage source can be a Proportional To Absolute Temperature (PTAT) device.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: January 16, 2007
    Assignee: Qualcomm Incorporated
    Inventors: Vladimir Aparin, Yue Wu
  • Patent number: 7161993
    Abstract: First and second transmission links are established with a remote station. An information signal is encoded to provide an encoded information signal having more bits than the information signal. First and second transmission signals are provided wherein each transmission signal has bits selected from the encoded information signal. Each of the first and second transmission signals is transmitted to the remote station by way of a respective one of the first and second transmission links. The remote station receives and combines the first and second transmission signals transmitted by the remote station to provide a combined encoded signal. The combined encoded signal is decoded by the remote station to provide the information signal. The first and second transmission links can be formed between the remote station and a single base station or between the remote station and two separate base stations.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: January 9, 2007
    Assignee: Qualcomm Incorporated
    Inventors: Stein Lundby, Keith Saints
  • Patent number: 7161916
    Abstract: Systems and methods for selecting data rates at which to transmit data over a primary uplink in the presence of one or more secondary uplink channels. One embodiment comprises a method including determining probabilities associated with numbers of attempted transmissions of data, determining the number of times pending data transmissions have been attempted, determining probabilities associated with the data transmissions, and allocating power for transmission of the data in a succeeding frame based upon the associated probabilities. In one embodiment, a highest supportable data rate for a primary uplink is initially selected. Then, power is allocated for a minimum set of channels on the primary uplink. Then, power is allocated for pending data transmissions on the secondary uplink. A maximum power level for the transceiver is then adjusted to account for the allocated power, and the highest supportable data rate for the primary uplink is recomputed.
    Type: Grant
    Filed: August 18, 2004
    Date of Patent: January 9, 2007
    Assignee: Qualcomm Incorporated
    Inventors: Durga Prasad Malladi, Serge D. Willenegger
  • Patent number: 7158537
    Abstract: The layers and protocols of an air interface layering architecture are designed to be modular and can be modified and upgraded to support new features, perform complex tasks, and implement additional functionality. Prior to commencement of data communication between a first entity (e.g., an access terminal) and a second entity (e.g., a radio network), a set of layers and/or protocols is selected for negotiation. For each selected layer and protocol (i.e., each attribute), a list of attribute values considered acceptable to the first entity is determined. The selected attributes and their associated attribute values are sent from the first entity and, in response, a list of processed attributes and their associated lists of processed attribute values are received. Each list of processed attribute values includes attribute values considered acceptable to the second entity.
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: January 2, 2007
    Assignee: Qualcomm, Inc.
    Inventors: Paul E. Bender, Gadi Karmi, Bibhu Mohanty
  • Patent number: 7158506
    Abstract: A data manager, and a method of managing data, for a wireless device. The data manager includes a data receiver that receives voice data over the internet protocol connection, a data sender that sends other voice data over the internet protocol connection, a data recognizer that differentiates the voice data and the other voice data from non-voice data and non-data, and a controller that broadcasts the voice data and the other voice data in an internet voice protocol format. The method includes the steps of receiving voice data over the internet protocol connection at the wireless device, sending other voice data over the internet protocol connection from the wireless device, differentiating the voice data from non-voice data and non-data, differentiating the other voice data from other non-voice data and non-data, and controlling the broadcast of the voice data, and the other voice data.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: January 2, 2007
    Assignee: Qualcomm Incorporated
    Inventors: Paul E. Jacobs, David J. Ross
  • Patent number: 7158625
    Abstract: Systems and techniques for automatically terminating a call in a communications system involve a first subscriber unit originating a call to a second subscriber unit and terminating the call when the second subscriber unit rings.
    Type: Grant
    Filed: June 17, 2002
    Date of Patent: January 2, 2007
    Assignee: Qualcomm Incorporated
    Inventor: Lorenzo Casaccia
  • Patent number: 7159164
    Abstract: A method and an apparatus for recovery of particular bits in a frame are disclosed. An origination station forms a frame structure with groups of information bits of different importance. All the information bits are then protected by an outer quality metric. Additionally, the groups of more important information bits are further protected by an inner quality metric; each group having a corresponding quality metric. The frame is then transmitted to a destination station. The destination station decodes the received frame and decides, first in accordance with the outer quality metric, whether the frame has been correctly received, or whether the frame is erased. If the frame has been declared erased, the destination station attempts to recover the groups of more important information bits in accordance with the corresponding inner quality metrics.
    Type: Grant
    Filed: June 5, 2000
    Date of Patent: January 2, 2007
    Assignee: Qualcomm Incorporated
    Inventors: Ahmed Saifuddin, Joseph P. Odenwalder, Yu-Cheun Jou, Edward G. Tiedemann, Jr.
  • Patent number: 7155246
    Abstract: 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 communication links between a common transmitter and several users. The greater the variation in the quality of a particular link over time, the greater the increase in total system throughput provided. An scheduler metric (or scheduler metric) represents the instantaneous quality of the communication link between each user and the transmitter with respect to the average quality of the link. Alternatively, the scheduler metric represents the instantaneous channel condition with respect to the average data throughput over that channel. The common transmitting station uses the scheduler metric to directly compare the desirability of granting each channel access with the desirability of granting each other channel access. The users with links that have the greatest scheduler metric are provided access to the channels.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: December 26, 2006
    Assignee: Qualcomm, Incorporated
    Inventors: Naga Bhushan, Etienne Francois Chaponniere, Peter J. Black, David Ngar Ching Tse
  • Patent number: 7155231
    Abstract: Techniques for pre-correction of transmit signals are disclosed. In one aspect, a transmit antenna array configurable to generate multiple transmit beams is deployed. The parameters for configuring the antenna array are computed in response to channel estimates and a noise floor estimate made at the receiver. Information is transmitted in accordance with the multiple transmit beams, delayed as necessary, such that the multipaths may arrive time-aligned an in-phase at the receiver. In another aspect, pre-RAKE pre-correction is deployed by calculating Wiener weights. In yet another aspect, space-time diversity is deployed for calculating tap values for FIR filters used in transmission on the transmit antenna array. In yet another aspect, space only pre-correction is deployed. Various other aspects are also disclosed. These aspects have the benefit of reducing the interference experienced at a receiver, resulting in increased capacity, increased data throughput, and other system benefits.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: December 26, 2006
    Assignee: Qualcomm, Incorporated
    Inventors: Joseph P. Burke, Michael J. Wengler, Bhaskar D. Rao, Harris S. Simon
  • Patent number: 7155235
    Abstract: A method and apparatus for conserving home agent resources in mobile Internet Protocol (IP) deployment is disclosed. In a wireless communication system supporting mobile IP, a release candidate set is generated and updated during operation of the network. When an inactivity timer associated with a mobile node satisfies a condition, the mobile node is listed in the release candidate set. Successful communication with the mobile node results in removal from the release candidate set. The release candidate set is accessed when a home agent desires to reclaim resources on an overload condition.
    Type: Grant
    Filed: March 7, 2002
    Date of Patent: December 26, 2006
    Assignee: Qualcomm, Incorporated
    Inventors: Sivaramakrishna Veerepalli, Marcello Lioy, Nischal Abrol
  • Patent number: 7151927
    Abstract: A method for checking the quality of service provided by a base station at a location remote from the base station, including transmitting signals between the base station and a call transceiver at the remote location, analyzing at least some of the signals at the remote location to formulate at least one parameter indicating the quality of the signals, and transmitting the at least one parameter from a control transceiver at the remote location to the base station.
    Type: Grant
    Filed: September 21, 1998
    Date of Patent: December 19, 2006
    Assignee: Qualcomm Incorporated
    Inventor: Lindsay A. Weaver, Jr.
  • Patent number: 7151939
    Abstract: Techniques are disclosed for providing an indication of location service availability and the quality of available location services for a mobile station. A required location quality of service (LQoS) parameter is acquired. The required LQoS parameter may be a minimum position accuracy value, a maximum response time value, or a maximum age of position information value. An actual LQoS value is then determined. If the actual LQoS value does not satisfy the required LQoS parameter, then an indicator is provided that location services are not available for the mobile station. For example, a visual indicator may be displayed indicating that location services are not available. On the other hand, if location services are determined to be available, a relative strength measure of position accuracy is calculated and a visual indicator of the strength of the position accuracy is provided.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: December 19, 2006
    Assignee: Qualcomm Incorporated
    Inventor: Leonid Sheynblat