Patents Represented by Attorney, Agent or Law Firm Donald C. Kordich
  • Patent number: 7969858
    Abstract: More efficient utilization of available bandwidth is implemented in an OFDM wireless communication system. The partitions of bandwidth may be of different sizes and may be different from the original system design parameters. Basic system structure such as the number of tones used and the number of OFDM symbol times in a slot is maintained throughout the system. Bandwidth is varied by adjusting the inter-tone spacing or bandwidth associated with a single tone. As the inter-tone spacing is increased, the OFDM symbol transmission time is decreased following an inverse proportional relationship.
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: June 28, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Rajiv Laroia, Junyi Li, Vladimir Parizhsky
  • Patent number: 7970368
    Abstract: Telephone apparatus, including a cable television (CATV) network interface, which is adapted to be connected to a CATV network so as to receive downstream cellular telephone communication signals transmitted at a downstream intermediate frequency (IF) via the CATV network from a base-station transceiver system (BTS) operative in a cellular telephone network. The apparatus includes a telephone interface, which is adapted to connect to a cellular telephone operative in the cellular telephone network via a physical connection. The apparatus also includes signal conversion circuitry, which is adapted to convert the downstream communication signals received at the downstream IF via the CATV network interface to downstream radio-frequency (RF) cellular telephone signals compatible with the cellular telephone network, and to convey the downstream RF cellular telephone signals to the cellular telephone via the physical connection.
    Type: Grant
    Filed: February 5, 2003
    Date of Patent: June 28, 2011
    Assignee: QUALCOMM Incorporated
    Inventor: Haim Weissman
  • Patent number: 7966648
    Abstract: The claimed subject matter relates to systems and methods for authorizing services. A method includes receiving a set of data relating to Quality of Service (QoS) pre-authorization, and conditionally processing subsequent QoS configuration requests based at least in part on the pre-authorization information. Depending on the pre-authorization information corresponding to a QoS configuration request, the request may be granted, denied, or result in sending of a request for authorization.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: June 21, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Vincent D. Park, David R. Mazik, Hesham Soliman
  • Patent number: 7961682
    Abstract: Techniques for supporting handoff of a terminal between base stations of different protocol revisions (P_REVs) in a CDMA system. The terminal is handed off from a first base station (with a first P_REV) to a second base station (with a second P_REV) while it is in an active (data or voice) call with the first base station. The second P_REV is later than the first P_REV. The active call may be maintained between the terminal and second base station using a first service configuration previously established via the first base station for the active call. A second service configuration may be established via the second base station for the active call. This may be achieved by (1) querying the terminal, (2) assignment by the second base station, or (3) initiation by the terminal. The active call may then be maintained using the second service configuration if available.
    Type: Grant
    Filed: April 11, 2002
    Date of Patent: June 14, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Lijun Zhao, Jun Wang
  • Patent number: 7945234
    Abstract: Operating a communication device in a half-duplex mode using only overhead channels; and substantially free running a timing reference obtained during reception to allow a timing reference value to drift during transmission.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: May 17, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Chong U. Lee, Alejandro R. Holcman, Arik Mimran, Jack Keil Wolf, Leonid Sheynblat, Roberto Padovani, Paul E. Bender, Ramin Rezaiifar, Samir K. Khazaka
  • Patent number: 7941172
    Abstract: Frames received on a first link of a channel are grouped or queued for later processing in a batch or batch mode. Power control instructions included with the frames are examined, and a history of predetermined length is kept. Frames to be transmitted on a second link of the channel are also batched for later handling in batch. Power control bits are generated for the frames, based at least in part on the history kept, in a manner that effectuates a slowing of responding to the incoming power control instructions.
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: May 10, 2011
    Assignee: QUALCOMM Incorporated
    Inventor: Scott Dickson
  • Patent number: 7936831
    Abstract: Downlink traffic channel data rate options and methods of indicating to a wireless terminal a utilized downlink data rate option are described. The downlink traffic channel rate option for a segment is conveyed using an assignment signal and/or a block in the downlink traffic channel segment which is not used for user data. Downlink segment assignment signals in some implementations allocate fewer bits for rate option indication than are required to uniquely identify each option. In some implementations low rate options, e.g., using QPSK, are uniquely identified via assignment signals. Higher rate options, e.g., using QAM16 modulation, are conveyed via the distinct information block in the downlink traffic segment using a first coding/modulation method. Still higher rate options, e.g., using QAM16, QAM64, or QAM256, are conveyed via the information block in the segment using a second coding/modulation method which is applied to the rate option information.
    Type: Grant
    Filed: September 16, 2005
    Date of Patent: May 3, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Rajiv Laroia, Hui Jin, Junyi Li, Frank A. Lane, Tom Richardson
  • Patent number: 7929496
    Abstract: Methods and apparatus are disclosed for implementing composite channel trees for resource assignment. The composite channel tree includes a binary channel tree structure and at least one supplemental node facilitated by an additional bit to the channel identification. The methods and apparatus provide overcome defragmentation problems related in a binary code tree and reduces granularity issues related to the binary tree.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: April 19, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Alexei Gorokhov, Tingfang Ji
  • Patent number: 7925291
    Abstract: Systems and methodologies are described that facilitate controlling transmission power of a wireless terminal. A downlink power control channel segment may include an Orthogonal Frequency Division Multiplexing (OFDM) tone-symbol that may comprise a first component and a second component. The first component may be an in-phase (I) component and the second component may be a quadrature (Q) component, for example. A power command may be transmitted in the first component. Further, information associated with a wireless terminal may be transmitted in the second component. The information associated with the wireless terminal may be, for instance, a portion of a scrambling mask associated with the wireless terminal.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: April 12, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Pablo Anigstein, Prashanth Hande, Junyi Li
  • Patent number: 7894324
    Abstract: A wireless terminal includes an uplink rate option indicator in the same uplink channel segment with data, the rate option indicator providing transmission rate information about the data transmitted in the segment. The indicator value is represented by an energy pattern within the segment. Different energy patterns correspond to different indicator values. The number of indicator values is less than the number of possible uplink data rate options supported by the wireless terminal. A single indicator value represents different uplink data rate options, at different times, as a function of a received maximum data rate option and/or type of assignment message. The maximum data rate option and/or assignment message was transmitted by the same base station receiving the indicator value; therefore, there is no ambiguity between wireless terminal and base station as to the interpretation of the uplink data rate option indicator value with respect to an individual uplink segment.
    Type: Grant
    Filed: September 19, 2005
    Date of Patent: February 22, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Rajiv Laroia, Hui Jin, Tom Richardson, Junyi Li
  • Patent number: 7895504
    Abstract: According to one embodiment, a system is provided that allows a receiver to determine that an initial error message (such as a NAK message) was not correctly received by a transmitter, and to cause the transmitter to continue transmitting information corresponding to data that has not yet been successfully decoded by the receiver. In accordance with another embodiment, the receiver can generate a message (e.g., a continue previous packet message) to correct the transmitter and initiate full recovery at the physical layer.
    Type: Grant
    Filed: May 2, 2006
    Date of Patent: February 22, 2011
    Assignee: QUALCOMM Incorporated
    Inventor: Ravi Palanki
  • Patent number: 7885293
    Abstract: A base station selects a maximum rate option indicator value for an uplink communications segment, e.g., uplink traffic channel segment, and transmits the selected indicator value, e.g., as part of the assignment message. The maximum rate option indicator value indicates to the wireless terminal a maximum allowed data rate option that the wireless terminal is permitted to use for the corresponding assigned uplink communications segment, the wireless terminal determining the actual uplink rate option used. Each uplink data rate option corresponds to: a number of information bits to be communicated in an uplink communication segment, a coding rate, and a modulation method. Some embodiments include multiple types of maximum uplink rate option indicators, e.g., a first type using a single bit and a second type using at least three bits. Different modulation methods are, in some embodiments, used for communicating the different types of maximum uplink rate option indicators.
    Type: Grant
    Filed: September 19, 2005
    Date of Patent: February 8, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Rajiv Laroia, Hui Jin, Tom Richardson, Junyi Li
  • Patent number: 7873354
    Abstract: A method and an apparatus for implementing the method for using and implementing a service-on-demand in a mobile communication system. The services-on-demand are intended to be received by means of a mobile station. The mobile station monitors a cell transmission and receives parts intended for the mobile station from the transmission. In order to use the services-on-demand, in the method the service-on-demand is offered in the cell to all mobile stations located in the cell over a first channel, a registration message (2-2) is transmitted from the mobile station for registering as a user of the service-on-demand over a signalling channel, an acknowledgement (2-4) of the registration, indicating how the service-on-demand is received, is received at the mobile station, and the reception of the service-on-demand is started over the first channel in a manner indicated by the registration acknowledgement.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: January 18, 2011
    Assignee: QUALCOMM Incorporated
    Inventor: Jan Kåll
  • Patent number: 7869803
    Abstract: The claimed subject matter relates to systems and methods for roaming in a wireless communications environment. A method for roaming between networks is provided in one aspect. This includes receiving a request for network access at a visited network and receiving a profile from a home network in response to the request. Upon receiving the profile, selectively offering services to one or more access terminals based at least in part on the profile.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: January 11, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Mathew Scott Corson, Alan O'Neill, Vincent D. Park, George Tsirtsis, Michaela Vanderveen
  • Patent number: 7869421
    Abstract: The claimed subject matter relates to acquiring channel access in a wireless communication environment. A wireless terminal may transmit first and second sets of tones over respective first and second contiguous transmission periods. The first and second tone sets may be disjoint from each other and may each comprise a number of contiguous tones. The terminal may then refrain from transmitting during a third time period in order to receive a grant signal from a base station in response to the access request. The beginnings of the first time period and the second time period may be a function of a determined uplink transmission time.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: January 11, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Sundeep Rangan, Junyi Li
  • Patent number: 7869410
    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 packet error rate (PER); and setting Ptransmit based on Pbaseline, Pmargin, and Pcorrection. For example, Ptransmit may be set to a power level that is substantially equal to the sum of Pbaseline, Pmargin, and Pcorrection. The determination of each of Pbaseline, Pmargin, and Pcorrection may be performed in independently running control loops or processes.
    Type: Grant
    Filed: July 23, 2007
    Date of Patent: January 11, 2011
    Assignee: QUALCOMM Incorporated
    Inventors: Jon J. Anderson, Durga P. Malladi, Steven J. Doerfler
  • Patent number: 7853282
    Abstract: Systems and methodologies are described that facilitate allocating power levels in a wireless communication network. A metric based upon spectral efficiency can be employed in connection with optimizing power allocation. Further, power for transmitters to utilize can be assigned as a function of time. Moreover, a single sub-carrier network and/or a multiple sub-carrier networks can leverage one or more power allocation schemes.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: December 14, 2010
    Assignee: QUALCOMM Incorporated
    Inventors: Xinzhou Wu, Arnab Das, Junyi Li
  • Patent number: 7853281
    Abstract: Power control reports are communicated less frequently than the power control commands. The base station tracks the commands sent to the wireless terminal and estimates the wireless terminal's control channel transmit power. Received power control channel reports are utilized to compare the base station's estimated wireless terminal control channel transmit power to the actual wireless terminal control channel transmit power. An estimate of the error rate of transmitted power control signals is generated based using the tracked power command information and received power report information. Adjustments are performed in the power control command signaling to compensate for estimated error rates.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: December 14, 2010
    Assignee: QUALCOMM Incorporated
    Inventors: Arnab Das, Sundeep Rangan, Samel Celebi
  • Patent number: 7826863
    Abstract: Systems and methodologies are described that facilitate allocating power levels in a wireless communication network. A metric based upon spectral efficiency can be employed in connection with optimizing power allocation. Further, power for transmitters to utilize can be assigned as a function of time. Moreover, a single sub-carrier network and/or a multiple sub-carrier networks can leverage one or more power allocation schemes.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: November 2, 2010
    Assignee: QUALCOMM Incorporated
    Inventors: Xinzhou Wu, Arnab Das, Junyi Li
  • Patent number: 7818023
    Abstract: Systems and methodologies are described that facilitate and effectuate power allocation schemes that reuse power allocation patterns amongst different carriers for sectors in the same cell and uses different power allocation patterns between cells. The frequency reuse scheme generates power allocation patterns, selects one of the generated power allocation patterns for use among at least two carriers of at least two sectors in a cell, and employs a second disparate power allocation pattern for use between at two cells.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: October 19, 2010
    Assignee: QUALCOMM Incorporated
    Inventors: Junyi Li, Arnab Das, Xinzhou Wu