Patents Represented by Attorney, Agent or Law Firm Donald C. Kordich
  • Patent number: 8208495
    Abstract: Communication systems and methods that minimize repetition of data packets in the presence of supplemental resources are disclosed. Control channels not engaged in transmission of control messages are dynamically allocated to carry traffic data. The data packets that comprise the traffic data are processed in accordance with various schemes and the generated subpackets are transmitted so that an entire subpacket is transmitted on the traffic channel while a corresponding coded portion of the last subpacket is transmitted on the available supplemental channels. If the subpacket is decoded correctly an acknowledgement (ACK) message is sent otherwise a negative acknowledgement (NAK) is transmitted.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: June 26, 2012
    Assignee: QUALCOMM Incorporated
    Inventor: Alexei Gorokhov
  • Patent number: 8207569
    Abstract: Capacitive structures in integrated circuits are disclosed. The capacitive structures are formed on a substrate. Each capacitive structure includes a first conductive finger and a second conductive finger. The first and second conductive fingers are arranged in parallel with each other and separated from each other by a dielectric material. The first finger is connected to a first interconnect and the second conductive finger is connected to a second interconnect. A first capacitor is formed from a first group of the plurality of capacitive structures having respective interconnects coupled together. A second capacitor is formed from a second group of the plurality of capacitive structures having respective interconnects coupled together. The capacitive structures of the first group are intertwined with the capacitive structures of the second group.
    Type: Grant
    Filed: June 6, 2007
    Date of Patent: June 26, 2012
    Assignee: QUALCOMM, Incorporated
    Inventor: David Bang
  • Patent number: 8208378
    Abstract: A single receiver can collect multiple protocol data units at one time originating from different sources. While it can be desirable for higher priority protocol data units to be processed, loss of data unit portions can cause confusion to the receiver. Therefore, even if a higher priority protocol data unit transfers to the receiver while a lower priority data unit is being processed, the lower priority unit can be completed before processing the higher priority unit; thus, there can be a lower likelihood of confusion among protocol data units.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: June 26, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Shailesh Maheshwari, Srividhya Krishnamoorthy, Thomas Klingenbrunn
  • Patent number: 8204530
    Abstract: Techniques for controlling transmit power of a terminal are described. The terminal may send a first transmission (e.g., for pilot or signaling) on the reverse link, receive feedback (e.g., a power control command or an erasure indicator) for the first transmission, and adjust a reference power level based on the feedback. The terminal may also receive interference information and possibly other parameters such as a pilot quality indicator (PQI), an offset factor, and a boost factor from a sector. The terminal may determine transmit power for a second transmission to the sector based on the interference information, the reference power level, and/or the other parameters. The terminal may receive the feedback from one sector and may send the second transmission with CDMA or OFDMA to the same sector or a different sector.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: June 19, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Alexei Gorokhov, Aamod Khandekar, Tamer Kadous, Mohammad J. Borran
  • Patent number: 8201039
    Abstract: Embodiments disclosed herein address the need in the art for reduced overhead control with the ability to adjust transmission rates as necessary. In one aspect, a first signal indicates an acknowledgement of a decoded subpacket and whether or not a rate control command is generated, and a second signal conditionally indicates the rate control command when one is generated. In another aspect, a grant may be generated concurrently with the acknowledgement. In yet another aspect, a mobile station monitors the first signal, conditionally monitors the second signal as indicated by the first signal, and may monitor a third signal comprising a grant. In yet another aspect, one or more base stations transmit one or more of the various signals. Various other aspects are also presented. These aspects have the benefit of providing the flexibility of grant-based control while utilizing lower overhead when rate control commands are used, thus increasing system utilization, increasing capacity and throughput.
    Type: Grant
    Filed: May 10, 2007
    Date of Patent: June 12, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Edward G. Tiedemann, Jr., Aleksandar Damnjanovic, Avinash Jain, Durga P. Malladi, David Puig Oses, Peter Gaal, Stein Lundby, Sandip Sarkar, Tao Chen, Yongbin Wei, Serge Willenegger
  • Patent number: 8195099
    Abstract: Systems and methodologies are described that facilitate utilizing different power control algorithms as a function of access terminal speed. For instance, instantaneous Channel Quality Indicator (CQI) reports can be inverted for slow moving access terminals while long-term geometry inversion (e.g., average CQI report inversion) can be utilized for quick moving access terminals. Speed of the access terminal can be estimated based upon time correlation of CQI values. Further, selection of implementing instantaneous CQI inversion or long-term geometry inversion can be based upon the estimated speed of the access terminal.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: June 5, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Kapil Bhattad, Ravi Palanki, Alexei Gorokhov, Arnab Das
  • Patent number: 8181079
    Abstract: Techniques for transmitting data with hybrid automatic retransmission (HARQ) and interference mitigation are described. In one design, a transmitter processes a packet of data in accordance with a rate and sends at least one transmission of the packet to a receiver with HARQ. In one design, the transmitter sends a trigger message to the receiver to trigger the receiver to send a request to reduce interference to interfering station(s). The transmitter may send a first transmission of the packet (i) after the trigger message, e.g., in consecutive frames of a single HARQ interlace, or (ii) along with the trigger message in the same frame. The number of transmissions to send for the packet may be dependent on whether the interfering station(s) reduce interference to the receiver. The packet transmission may terminate early if interference mitigation is successful or may terminate late if interference mitigation is unsuccessful.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: May 15, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Alexei Gorokhov, Gavin Horn, Mohammad J. Borran
  • Patent number: 8160007
    Abstract: Systems and methodologies are described that facilitate scheduling uplink transmissions. For instance, a time sharing scheme can be utilized such that differing mobile devices can be scheduled to transmit during differing time slots; however, it is also contemplated that a static scheme can be employed. Pursuant to an illustration, an interference budget can be combined with a time varying weighting factor associated with a base station; the weighting factor can be predefined and/or adaptively adjusted (e.g., based upon a load balancing mechanism). Moreover, the weighted interference budget can be leveraged for selecting mobile devices for uplink transmission (e.g., based at least in part upon path loss ratios of the mobile devices). Further, disparate interference budgets can be utilized by differing channels of a sector at a particular time. Also, for example, a base station can assign a loading factor to be utilized by wireless terminal(s) for generating channel quality report(s).
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: April 17, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Xinzhou Wu, Sundeep Rangan, Prashanth Hande, Arnab Das, Junyi Li
  • Patent number: 8160602
    Abstract: Systems and methodologies are described that facilitate scheduling uplink transmissions. For instance, a time sharing scheme can be utilized such that differing mobile devices can be scheduled to transmit during differing time slots; however, it is also contemplated that a static scheme can be employed. Pursuant to an illustration, an interference budget can be combined with a time varying weighting factor associated with a base station; the weighting factor can be predefined and/or adaptively adjusted (e.g., based upon a load balancing mechanism). Moreover, the weighted interference budget can be leveraged for selecting mobile devices for uplink transmission (e.g., based at least in part upon path loss ratios of the mobile devices). Further, disparate interference budgets can be utilized by differing channels of a sector at a particular time. Also, for example, a base station can assign a loading factor to be utilized by wireless terminal(s) for generating channel quality report(s).
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: April 17, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Xinzhou Wu, Sundeep Rangan, Prashanth Hande, Arnab Das, Junyi Li
  • Patent number: 8155652
    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: August 7, 2007
    Date of Patent: April 10, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Nileshkumar J. Parekh, Faith Ulupinar, Rajat Prakash
  • Patent number: 8149766
    Abstract: Methods and apparatus for communicating different size coded blocks of information in a wireless sectorized communications cell are described. Information may be categorized and formed into large, medium, and small coded blocks which may include error correction code bits based on the number of bits representing the information, time criticality of the information, and tolerable level of interference. Channels with full tone overlap between adjacent sectors, channels with no tone overlap between adjacent sectors, and channels with partial tone overlap between adjacent sectors are used for different size blocks. Some tones corresponding to a channel with less than full tone overlap are left unused in an adjacent sector thereby achieving less than full transmission tone overlap.
    Type: Grant
    Filed: June 11, 2007
    Date of Patent: April 3, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Rajiv Laroia, Junyi Li
  • Patent number: 8144731
    Abstract: Systems and methodologies are described that facilitate multiplexing control data values over a single physical control channel at least in part by dividing the control channel into one or more logical channels. The physical control channel can have a corresponding Walsh space for transmitting a number of bits, or representations thereof, and the Walsh space can be divided among the logical control channels. Additionally, the logical control channels and/or physical channel can be scrambled according to an identifier of a mobile device (such as MAC ID) to differentiate the data on the channel. Furthermore, a sector identifier can be used to scramble the data where the sector is ascertainable.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: March 27, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Aamod D. Khandekar, Alexei Y. Gorokhov, Naga Bhushan
  • Patent number: 8139533
    Abstract: Systems and methodologies are described that facilitate dividing scheduling algorithms into background and foreground aspects capable of simultaneously servicing a multiplicity of disparate flows in wideband communications networks. The systems provided herein arbitrarily select prospective time horizons, generate optimal bandwidth allocation targets based on a plurality of flows observed by the system, and utilizes the optimal bandwidth targets to assign flows to users over the entirety of the prospective time horizon.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: March 20, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Ritesh K. Madan, Arnab Das, Sundeep Rangan, Siddharth Ray
  • Patent number: 8134977
    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: October 27, 2005
    Date of Patent: March 13, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Nileshkumar J. Parekh, Fatih Ulupinar, Rajat Prakash
  • Patent number: 8130867
    Abstract: Techniques for transmitting pilot and for processing received pilot to obtain channel and interference estimates are described. A terminal may generate pilot symbols for a first cluster in a time frequency block based on a first sequence and may generate pilot symbols for a second cluster in the time frequency block based on a second sequence. The first and second sequences may include common elements arranged in different orders and may be considered as different versions of a single sequence. The terminal may transmit the pilot symbols in their respective clusters. A base station may obtain received pilot symbols from multiple clusters in the time frequency block. The base station may form each of multiple basis vectors with multiple versions of the sequence assigned to the terminal and may process the received pilot symbols with the multiple basis vectors to obtain a channel estimate for the terminal.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: March 6, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Petru Cristian Budianu, Dhananjay A. Gore, Alexei Gorokhov
  • Patent number: 8116805
    Abstract: Systems and methodologies are described that facilitate scheduling transmission, upon an uplink traffic channel in Orthogonal Frequency Division Multiplexing (OFDM) environments. Uplink scheduling may include user selection and rate selection. Further, user selection may be based on a token mechanism that provides control over fairness of allocation to disparate users. Moreover, rate selection may be based upon considerations of uplink interference mitigation.
    Type: Grant
    Filed: December 17, 2006
    Date of Patent: February 14, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Arnab Das, Prashanth Hande, Sundeep Rangan, Xinzhou Wu
  • Patent number: 8116253
    Abstract: Forward link transmission power to a user terminal in a wireless communications system having a plurality of beams is controlled by determining a baseline power level, Pbaseline, from a received active pilot channel signal-to-noise ratio (SNR); determining a power margin, Pmargin, from an identified interference susceptibility; determining a power level correction, Pcorrection, based on an identified quality of service metric (QSM); determining a fade correction factor, Pfade, based on a detected fade environment; and setting Ptransmit based on Pbaseline, Pmargin, Pcorrection and Pfade. For example, Ptransmit may be set to a power level that is substantially equal to the sum of Pbaseline, Pmargin, Pcorrection and Pfade. The determination of each of Pbaseline, Pmargin, Pcorrection and Pfade may be performed in independently running control loops or processes.
    Type: Grant
    Filed: May 2, 2008
    Date of Patent: February 14, 2012
    Assignee: QUALCOMM Incorporated
    Inventor: Jon James Anderson
  • Patent number: 8116800
    Abstract: Systems and methodologies are described that facilitate controlling reverse link power on a traffic channel. Assignments for reverse link communication can be yielded. Interference from mobile devices in neighboring sectors can be monitored and other sector interference (OSI) indications can be broadcasted. The OSI indications can be obtained by mobile devices to alter delta values employed for delta-based power control. Further, a maximum allowable amount of reduction of a delta value can be allocated per QoS class. Moreover, mobile devices can provide in-band and out-of-band feedback, which can be leveraged for future assignments.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: February 14, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Alexei Gorokhov, Mohammad J. Borran, Avneesh Agrawal
  • Patent number: 8102935
    Abstract: Techniques for estimating data-to-pilot ratio are described. A terminal may receive pilot sent to multiple terminals and may receive data sent specifically to the terminal. The terminal may estimate channel gain and noise variance based on the received pilot. The terminal may then estimate a data-to-pilot ratio based on the received data y and the estimated channel gain h and noise variance ?2. In one design, the terminal may determine a metric ? y ? 2 - ? 2 ? h ? 2 and may average the metric across multiple received data symbols to obtain the data-to-pilot ratio. The terminal may receive pilot and data via multiple antennas and may combine the received data across these antennas to obtain combined data. The terminal may estimate signal-to-noise-and-interference ratio (SINR) based on the received pilot from the multiple antennas and may then estimate the data-to-pilot ratio based on the combined data and the estimated SINR.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: January 24, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Sony Akkarakaran, Min Dong
  • Patent number: 8099099
    Abstract: Methods and apparatus related to assignment in a wireless communications system are described. A mobile is assigned an identifier and a mask value, e.g., as part of a state transition message. The mobile uses the assigned identifier and/or the assigned mask value in determining whether assignments included in assignment messages, e.g., traffic channel assignment messages, are directed to the wireless terminal. Predetermined associations between assignment slots, assigned segments, and/or mask values are utilized to limit control signaling overhead. Different groups of segments are available for assignment to different wireless terminals as a function of mask values. Different types of assignment messages use different amounts of information bits to convey the assignment. Some types of assignments use a wireless terminal identifier, while other types of assignments use a wireless terminal identifier and a mask identifier. The mask identifier, e.g.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: January 17, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Rajiv Laroia, Vladimir Parizhisky, Junyi Li, Sathyadev Venkata Uppala