Patents Represented by Attorney, Agent or Law Firm Donald C. Kordich
  • Patent number: 8095141
    Abstract: Systems and methodologies are described that facilitate dynamically supplementing resource assignments to mobile devices in a wireless network environment without requiring transmission of replacement assignments. Supplemental assignments can be generated based on information related to mobile device need and resource availability. Additionally, assignment validation can be performed to mitigate generation of conflicting resource assignment to multiple devices. Moreover, resource assignments can be persisted for a mobile device.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: January 10, 2012
    Assignee: QUALCOMM Incorporated
    Inventor: Edward Harrison Teague
  • Patent number: 8091121
    Abstract: Techniques for supporting concurrent data services with different credentials are described. A wireless communication network authenticates a user/device whenever new credentials are used. An access terminal sends first credentials via a Point-to-Point Protocol (PPP) link to a Packet Data Serving Node (PDSN) and receives an indication of successful authentication for a first data service based on the first credentials. The access terminal may receive a request for a second data service and second credentials from an internal application or a terminal device coupled to the access terminal. The access terminal then sends the second credentials via the PPP link to the PDSN while the first data service is ongoing. The access terminal receives from the PDSN an indication of successful authentication for the second data service based on the second credentials.
    Type: Grant
    Filed: December 1, 2006
    Date of Patent: January 3, 2012
    Assignee: QUALCOMM Incorporated
    Inventor: Marcello Lioy
  • Patent number: 8089948
    Abstract: Methods and apparatus are described for improving the transmission of multimedia data over wireless communication channels. These techniques include determining a physical layer packet size of the wireless communication system and determining a maximum size of a compressed header. Then, partitioning an information unit, wherein the size of the partitions are selected such that after a partition is encoded the aggregate size of the encoded partition and the compressed header are the size of the physical layer packet, or less. The techniques can be used for various types of information units, such as multimedia data, variable bit rate data streams, video streams, video teleconference stream, or voice over IP.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: January 3, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Harinath Garudadri, Phoom Sagetong, Raymond Tah-Sheng Hsu
  • Patent number: 8085875
    Abstract: Dynamic resource allocation systems, apparatus, and methods are disclosed for selectively improving the ability of a receiver to determine a channel estimate in an Orthogonal Frequency Division Multiple Access (OFDMA) system. A wireless communication system can use a common pilot channel configuration to aid channel estimation in one or more receivers in communication with the system. A receiver in communication with the system may be unable to demodulate received data due to an inaccurate channel estimate. The receiver can communicate to a transmitter in the system a request for additional channel estimation resources. The wireless communication system can provide additional channel estimation resources by inserting dedicated pilot channels into one or more of the frequencies allocated to symbols for the receiver. If the receiver is still unable to demodulate received data, the wireless communication system can incrementally insert additional pilot channels in the symbol associated with the receiver.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: December 27, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Dhananjay Ashok Gore, Avneesh Agrawal, Aamod Khandekar
  • Patent number: 8085786
    Abstract: Systems and methodologies are described that facilitate data throughput optimization in a receiver through prioritized decoding of data transmissions. In particular, mechanisms are provided that assign priorities to obtained packets and/or sub-packets of a data transmission. The priorities can be assigned based at least upon prioritization rules that identify packets and/or sub-packets most likely to successfully decode. The obtained packets and/or sub-packets are decoded based upon the assigned priorities.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: December 27, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Ming-Chang Tsai, James J. Wu
  • Patent number: 8077691
    Abstract: A transmitter generates multiple composite pilots with a training matrix and a gain matrix. Each composite pilot includes multiple training pilots generated with multiple columns of the training matrix and scaled with multiple gain elements in a column of the gain matrix. The transmitter transmits each composite pilot via multiple transmit antennas. A MISO receiver obtains received symbols for the multiple composite pilots and derives an estimate of a composite MISO channel. For OFDM, the MISO receiver derives an initial impulse response estimate for each composite pilot, filters the initial impulse response estimates for all composite pilots, and derives a frequency response estimate for the composite MISO channel. A MIMO receiver obtains and processes received symbols for the multiple composite pilots based on the training and gain matrices and derives channel estimates for individual SISO channels between the multiple transmit antennas and multiple receive antennas.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: December 13, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Tamer Kadous, Avneesh Agrawal, Dhananjay Ashok Gore
  • Patent number: 8077692
    Abstract: Enhanced frequency division multiple access (EFDMA) is a multiplexing scheme that sends modulation symbols in the time domain and achieves a lower PAPR than OFDM. An EFDMA symbol occupies multiple subband groups that are spaced apart in a frequency band, with each subband group containing multiple adjacent subbands. To generate an EFDMA symbol, multiple modulation symbols are mapped onto a first sequence of symbols. A transform (e.g., a DFT) is performed on the first sequence to obtain a second sequence of values. The values in the second sequence corresponding to the subbands used for the EFDMA symbol are retained, and the remaining values are zeroed out to obtain a third sequence of values. An inverse transform (e.g., an IDFT) is performed on the third sequence to obtain a fourth sequence of samples. A phase ramp may be applied on the fourth sequence, and a cyclic prefix is appended to form the EFDMA symbol.
    Type: Grant
    Filed: May 10, 2006
    Date of Patent: December 13, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Aamod Khandekar, Ravi Palanki
  • Patent number: 8077654
    Abstract: Systems and methodologies are described that facilitate providing auxiliary multiple-input, multiple-output (MIMO) pilot signals to MIMO user devices in a wireless communication environment. According to some aspects, a portion of data transmission power may be reallocated for auxiliary MIMO pilot transmission during a data segment in a time slot, in order to permit a MIMO user device to perform CQI and rank prediction. Additionally or alternatively, non-MIMO pilot transmission power may be reallocated in a pilot segment in the time slot for transmission of an auxiliary MIMO pilot signal to permit the MIMO user device to demodulate data transmitted in data segments of the time slot. MIMO pilot signals may additionally be time-division multiplexed within or across time slots and may be transmitted over available Walsh codes in data and control segments.
    Type: Grant
    Filed: August 21, 2006
    Date of Patent: December 13, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Arak Sutivong, Avneesh Agrawal, Tamer Kadous
  • Patent number: 8068835
    Abstract: Systems and methods are provided for processing wireless signal components for a mobile wireless access broadband service. This can include processes for measuring signal strength of an alternative frequency by tuning away from an existing frequency associated with an existing communications path. Such processes allow determining if the alternative frequency supports a subsequent communications path in a mobile broadband wireless application. Upon the determination, the process can automatically select the subsequent communications path based in part on the measured signal strength.
    Type: Grant
    Filed: October 27, 2005
    Date of Patent: November 29, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Nileshkumar J. Parekh, Fatih Ulupinar, Rajat Prakash
  • Patent number: 8064405
    Abstract: Systems and methods are provided for processing wireless signal components for a mobile wireless access broadband service. This can include processes for defining a protocol that controls whether to invoke a tune away component to determine an alternative wireless communications path. This can include defining one or more tune away parameters for the tune away component. The process can then automatically select the alternative wireless communications path based in part on the tune away procedure and at least one of the tune away parameters.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: November 22, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Nileshkumar J. Parekh, Fatih Ulupinar, Rajat Prakash
  • Patent number: 8060099
    Abstract: Provided is a more efficient manner of transmitting a control message to reach into a neighboring sector (e.g., inter-sector) of a wireless network environment. The control message can be utilized for purposes such as handoff, indicating an amount of interference, inter-sector power control for managing inter-sector interference, sector loading, or other control messages. The control message can be placed on a set of resources utilizing planned reuse and/or statistical reuse. Statistical reuse includes selecting a subcarrier set for carrying the control message. According to some aspects, the control message can be sent over a backhaul channel.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: November 15, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: David Julian, Dhananjay Gore
  • Patent number: 8059589
    Abstract: Systems and methodologies are described that facilitate dynamically scheduling orthogonal resource sets for reuse by user devices to reduce inter-cell interference by evaluating an overall scheduling metric for each user device in a wireless communication region. The overall scheduling metric can be evaluated by determining a fairness metric for each user device in a wireless communication region, an overall channel peak desirability metric for each user device, and a channel delay desirability metric for each user device. The overall scheduling metric can be the function of the fairness metric and one or more of the overall channel peak desirability metric and the channel delay desirability metric. A user device with a highest overall scheduling metric score for a given round of dynamic scheduling can be awarded an orthogonal resource set.
    Type: Grant
    Filed: June 8, 2005
    Date of Patent: November 15, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Tingfang Ji, Edward Harrison Teague, David Jonathan Julian
  • Patent number: 8036672
    Abstract: Methods and apparatus of efficient communication of resource allocation are described. A base station transmits a resource assignment message, e.g., a state transition message, to a wireless terminal including a first part, e.g., a base station assigned wireless terminal On state identifier, identifying a resource being assigned and a second part, e.g., an ON state mask, identifying a portion of the resource allocated to the wireless terminal. The same resource allocation message information also communicates one of a plurality of different modes of commanded On state operation. The resource allocation message structure supports flexible allocation of available resources facilitating a resource to be partitioned differently at different times accommodating current needs.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: October 11, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Rajiv Laroia, Vladimir Parizhsky, Junyi Li, Sathyadev Venkata Uppala
  • Patent number: 8036151
    Abstract: Systems and methodologies are described that facilitate utilizing power-based rate signaling for uplink scheduling in a wireless communications system. A maximum nominal power (e.g., relative maximum transmit power that may be employed on an uplink) may be known to both a base station and a mobile device. For example, the base station and the mobile device may agree upon a maximum nominal power. According to another example, signaling related to a maximum nominal power for utilization on the uplink may be provided over a downlink. Further, selection of a code rate, modulation scheme, and the like for the uplink may be effectuated by a mobile device as a function of the maximum nominal power. Moreover, such selection may be based at least in part upon an interference cost, which may be evaluated by the mobile device.
    Type: Grant
    Filed: December 17, 2006
    Date of Patent: October 11, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Arnab Das, Prashanth Hande, Sundeep Rangan, Xinzhou Wu, Juergen Cezanne
  • Patent number: 8032145
    Abstract: Systems and methodologies are described that facilitate restrictive reuse resource set management with equal grade of service on forward link transmission. User throughput over a resource reuse set can be estimated, and an iterative method can be employed to reallocate users with poor spectral efficiency to reuse sets exhibiting high throughput to optimize overall throughput in a wireless network or a portion thereof.
    Type: Grant
    Filed: August 12, 2005
    Date of Patent: October 4, 2011
    Assignee: QUALCOMM Incorporated
    Inventor: Tingfang Ji
  • Patent number: 8023958
    Abstract: A system, method and apparatus for providing location services whereby location determination and location disclosure are treated as separate and independent processes. Location determination may be performed (as necessary) via a first set of network entities to obtain location information for a mobile station. The location information may be cached for subsequent disclosure to any number of applications. Location disclosure may be performed (when requested) via a second set of network entities to provide the location information. Location determination may utilize a first security procedure for authentication and authorization and to obtain a first session key used for location determination. Location disclosure may utilize a second security procedure for authentication and authorization and to obtain a second session key used for location disclosure. For a roaming mobile station, location determination may be performed via a serving network and location disclosure may be performed via a home network.
    Type: Grant
    Filed: March 2, 2004
    Date of Patent: September 20, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Jun Wang, Leonid Sheynblat, Parag Agahse, Randall Gellens, Raymond Hsu
  • Patent number: 7986922
    Abstract: Techniques for detecting and suppressing jammers are described. A receiver may perform post-FFT jammer detection and pre-FFT jammer suppression. The receiver may transform an input signal to obtain a frequency-domain signal and may detect for jammers in the input signal based on the frequency-domain signal. The receiver may determine powers of a plurality of carriers based on the frequency-domain signal and may detect for jammers based on peaks in the powers of these carriers. The receiver may filter the input signal (e.g., with a notch filter) to suppress the detected jammers. Alternatively or additionally, the receiver may perform post-FFT jammer detection and post-FFT jammer suppression. The receiver may determine whether jammer is present on each carrier based on data power and channel power for that carrier. The receiver may modify (e.g., zero out or reduce) the frequency-domain signal on carriers with detected jammers.
    Type: Grant
    Filed: April 25, 2007
    Date of Patent: July 26, 2011
    Assignee: Qualcomm Incorporated
    Inventors: Serguei A. Glazko, James Edward Beckman, Shimman Patel
  • Patent number: 7978656
    Abstract: Systems and methodologies are described that facilitate maintaining consistent radio-link layer protocol (RLP) sequence numbers in the event of an RLP sequence number reset. An offset can be adjusted upon occurrence of the event to reflect a subsequent expected sequence number. The offset can be added to the RLP sequence numbers such that receiving devices and/or higher layer applications can operate without realizing the sequence number reset. Additionally, the offset can be synchronized among base stations to facilitate operability following handoff of the receiving device.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: July 12, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Nileshkumar J. Parekh, Rajesh Kumar, Maksim (Max) Krasnyanskiy, Eric Hall
  • Patent number: 7973541
    Abstract: Techniques for estimating resistance and capacitance of metal interconnects are described. An apparatus may include an interconnect, a set of pads, a set of isolation circuits, and a test circuit. The set of pads may be coupled to the interconnect and used for simultaneously applying a current through the interconnect and measuring a voltage across the interconnect. The current and voltage may be used to estimate the resistance of the interconnect. The test circuit may charge and discharge the interconnect to estimate the capacitance of the interconnect. The isolation circuits may isolate the pads from the interconnect when the test circuit charges and discharges the interconnect. The apparatus may further include another interconnect, another set of pads, and another set of isolation circuits that may be coupled in a mirror manner. Resistance and/or capacitance mismatch between the two interconnects may be accurately estimated.
    Type: Grant
    Filed: December 6, 2007
    Date of Patent: July 5, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Jayakannan Jayapalan, David Bang, Yang Du
  • Patent number: 7974253
    Abstract: A base station selects and assigns uplink segments to specific wireless terminals. The base station estimates potential system interference levels, selects, assigns, and transmits a maximum uplink rate indicator value to a wireless terminal indicating the maximum uplink data rate that the wireless terminal is permitted to use. The wireless terminal receives the maximum data rate indicator and selects an uplink data rate to use which is less than or equal to the maximum data rate indicator level. The selection includes consideration of data amounts, data importance, communications channel quality, changes affecting the channel and/or power information. The wireless terminal encodes information indicative of the selected used rate with the user data/information to be transmitted by placing additional energy on a subset of the uplink signals. The base station receives the uplink signals including user data/information and data rate.
    Type: Grant
    Filed: September 19, 2005
    Date of Patent: July 5, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Rajiv Laroia, Hui Jin, Tom Richardson