Patents by Inventor Brian K. Classon

Brian K. Classon has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7570951
    Abstract: A method is provided that comprises detecting, by a first user terminal of a wireless system, a second user terminal having wireless system information. The wireless system information has timely wireless system parameters. The timely wireless system parameters are collected from the second user terminal. The first user terminal communicates with a base station based on the wireless system parameters.
    Type: Grant
    Filed: February 6, 2006
    Date of Patent: August 4, 2009
    Assignee: Motorola, Inc.
    Inventors: Brian K. Classon, Michael D. Kotzin, Ravi Kuchibhotla, Kevin L. Baum, Vijay Nangia, Philippe J. Sartori
  • Publication number: 20090168686
    Abstract: A method in a wireless communication network infrastructure entity including broadcasting information on a broadcast channel for receipt by broadcast wireless communication terminals in the wireless communication network, transmitting (210) a report triggering command to the wireless communication terminals, wherein the report triggering command triggers reporting of feedback information for the channel by the wireless communication terminals upon satisfaction of a condition.
    Type: Application
    Filed: March 6, 2009
    Publication date: July 2, 2009
    Applicant: MOTOROLA, INC.
    Inventors: Robert T. Love, Hao Bi, Brian K. Classon, Joseph R. Schumacher, Dah-Lain Almon Tang
  • Publication number: 20090168730
    Abstract: A pilot (or reference) transmission scheme is utilized where different transmitters are assigned pilot sequences with possibly different cyclic time shifts and different base pilot sequences. A pilot signal is transmitted concurrently by the transmitters in a plurality of pilot blocks, and a receiver processes the plurality of received pilot blocks to recover a channel estimate for at least one of the transmitters while suppressing the interference due to the pilot signals from the other transmitters.
    Type: Application
    Filed: October 29, 2008
    Publication date: July 2, 2009
    Applicant: Motorola, Inc.
    Inventors: Kevin L. Baum, Brian K. Classon, Vijay Nangia
  • Publication number: 20090147724
    Abstract: A method and apparatus for rate matching is described. During operation of a transmitter, multiple data streams are received and individually interleaved with a permutation of a same length K?. A permutation (?p0) of a second stream is the same as a permutation (?sys) of a first stream and a permutation (?p1) of a third stream is different from the permutation of the first stream. Each element of ?p1 is derived from the corresponding element of ?sys. The plurality of interleaved streams are multiplexed to form a circular buffer. Finally, data is transmitted from the circular buffer.
    Type: Application
    Filed: December 11, 2007
    Publication date: June 11, 2009
    Applicant: MOTOROLA, INC.
    Inventors: Ajit Nimbalker, Yufei W. Blankenship, Brian K. Classon
  • Patent number: 7508842
    Abstract: A method and apparatus for pilot signal transmission is disclosed herein. In particular, a pilot transmission scheme is utilized where pilot sub-carrier bandwidth differs from data sub-carrier bandwidth. Because some user's data sub-carriers will no longer have the user's pilot sub-carriers adjacent to them, the set, or pattern of sub-carriers used by the pilot blocks changes at least once in a burst. Changing the pilot block pattern (the set of occupied pilot block sub-carriers) at least once in the burst serves to increase the frequency proximity of occupied data sub-carriers to occupied pilot sub-carriers in the burst.
    Type: Grant
    Filed: August 18, 2005
    Date of Patent: March 24, 2009
    Assignee: Motorola, Inc.
    Inventors: Kevin L. Baum, Brian K. Classon, Vijay Nangia
  • Publication number: 20090077447
    Abstract: A wireless communication device (200) including a first CRC coder that generates a first block of CRC parity bits on a transport block and associates the first block of CRC parity bits with the transport block, a segmenting entity that segments the transport blocks into multiple code blocks after associating, and a second coder that generates a second block of CRC parity bits on each code block and associates a second block of CRC parity bits with each code block. The first and second blocks of CRC parity bits are based on first and second generator polynomials. In one embodiment, the first and second generator polynomials are different. In another embodiment, the generator polynomials are the same and the transport block is interleaved before segmenting or the code block are interleaved before encoding with the second block of CRC parity bits.
    Type: Application
    Filed: September 14, 2007
    Publication date: March 19, 2009
    Applicant: MOTOROLA, INC.
    Inventors: Michael E. Buckley, Yufei W. Blankenship, Brian K. Classon, Ajit Nimbalker, Kenneth A. Stewart
  • Patent number: 7475330
    Abstract: A method and apparatus for encoding and decoding data is described herein. During operation, data enters a convolutional encoder (101). The encoder encodes the information bits from the data at encoding rate (1/R0) to produce data symbols vectors P0, P1, . . . , PR0. Vectors P1, . . . , PR0 are each interleaved separately to form vectors P0?, P1?, . . . , PR0?. A multiplexer (105) multiplexes P0?, P1?, . . . , PR0? to produce vector Q. The multiplexed interleaved symbols Q are input into symbol adder/remover (107) where appropriate symbols are added or removed to match an over-the-channel transmission rate. Finally, vector Q? is transmitted via over-the-channel transmission.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: January 6, 2009
    Assignee: Motorola, Inc.
    Inventors: Yufei Wu Blankenship, Brian K. Classon, Vipul A. Desai
  • Publication number: 20080320353
    Abstract: During operation of a transmitter a circular buffer is created where only column tops of the circular buffer are defined as a starting position for a redundancy version. Where the circular buffer is in sequence format, all possible redundancy versions are at positions ?Kstream/32?(12×i+?), i=0, 1, . . . , 7 where ? indicates the column index of the starting position of the first RV (RV0).
    Type: Application
    Filed: June 20, 2007
    Publication date: December 25, 2008
    Applicant: MOTOROLA, INC.
    Inventors: Yufei W. Blankenship, T. Keith Blankenship, Brian K. Classon, Ajit Nimbalker
  • Publication number: 20080298477
    Abstract: When a UE (102) determines that non-control data needs to be transmitted, the UE will receive a grant that comprises information identifying a resource block (RB) for transmissions by the UE. If the UE determines that the RB is also used for transmitting control data, it will know to transmit only over the portion of the RB used for non-control data transmissions. Rate matching will then be performed on the non-control data that needs to be transmitted and the non-control data will be transmitted only over a portion of the RB. The second portion of the RB will be used for normal control data transmissions by other UEs.
    Type: Application
    Filed: May 31, 2007
    Publication date: December 4, 2008
    Applicant: MOTOROLA, INC.
    Inventor: Brian K. Classon
  • Patent number: 7457588
    Abstract: A wireless communication terminal (200) that communicates on a plurality of sub-carriers divided into a plurality of frequency bands, wherein each frequency band includes at least one sub-carrier. The terminal successively generates channel quality indicator (CQI) measurement information reports based on CQI measurements, wherein each report includes non-differential channel quality indicator measurement information for at least one of the frequency bands and differential channel quality indicator measurement information for all other frequency bands.
    Type: Grant
    Filed: August 1, 2005
    Date of Patent: November 25, 2008
    Assignee: Motorola, Inc.
    Inventors: Robert T. Love, Raja S. Bachu, Brian K. Classon, Ravikiran Nory, Kenneth A. Stewart, Yakun Sun
  • Publication number: 20080232240
    Abstract: A method and apparatus for performing resource allocation with lower required overhead is provided herein. Resource allocations for data transmissions are chosen in such a way as to provide channel quality information for various parts of the channel bandwidth (frequency selective channel quality information), such as allocating two different resource blocks (on different sets of subcarriers) to a mobile unit for two different transmissions. These data transmissions are used to estimate frequency selective channel quality information, thereby eliminating or greatly reducing the need for channel sounding with a broadband pilot. As a result, the overhead on the uplink of the communication system may be significantly reduced.
    Type: Application
    Filed: March 20, 2007
    Publication date: September 25, 2008
    Applicant: MOTOROLA, INC.
    Inventors: Kevin L. Baum, Brian K. Classon, Arvind Krishnamoorthy, Vijay Nangia, Philippe J. Sartori
  • Publication number: 20080232396
    Abstract: Various methods and apparatuses provide unicast channel data acquisition, such as antenna information, from MBMS subframes. A method of operating a wireless communications network infrastructure entity is disclosed comprising defining a subframe (400) comprising a unicast symbol (401) in a predetermined first symbol position within said subframe (400), said unicast symbol (401) comprising at least a first unicast antenna reference symbol; defining a second symbol position (403) within said subframe (400) for containing at least a second unicast antenna reference symbol, said second symbol position (403) being a multicast symbol position for transmitting a multicast symbol; and transmitting said subframe (400) wherein said unicast symbol (401) comprises said at least first unicast antenna reference symbol and wherein said multicast symbol (403) comprises said at least second unicast antenna reference symbol.
    Type: Application
    Filed: March 21, 2007
    Publication date: September 25, 2008
    Applicant: MOTOROLA, INC.
    Inventors: Michael E. Buckley, Brian K. Classon, Kenneth A. Stewart
  • Publication number: 20080232395
    Abstract: Various methods and apparatuses provide unicast channel data acquisition, such as antenna information, from MBMS subframes. A method of operating a wireless communications network infrastructure entity is disclosed comprising transmitting a subframe (300) comprising a unicast symbol (301) in a first predetermined symbol position within said subframe (300), said unicast symbol (301) comprising a first antenna reference information; defining said first antenna reference information as a second antenna reference information; and transmitting a second subframe comprising a second unicast symbol in a second predetermined symbol position within said second subframe, said second unicast symbol comprising said second antenna reference information.
    Type: Application
    Filed: March 21, 2007
    Publication date: September 25, 2008
    Applicant: MOTOROLA, INC.
    Inventors: Michael E. Buckley, Brian K. Classon, Kenneth A. Stewart
  • Publication number: 20080219219
    Abstract: A method and apparatus are provided for indicating to a communication unit a plurality of modulation and coding schemes (MCSs) to be utilized for communication. During a first MCS is determined for first resource blocks to be sent to a first remote unit or base station, and a second MCS is determined for a second resource block to be sent to the remote unit or base station. A message is transmitted indicating the first and the second MCS and also indicating the first resource blocks and the second resource block. Finally, a first PDU is transmitted to the remote unit or base station at a first time using the first MCS and the first resource blocks and a second PDU is transmitted to the remote unit or base station at the first time using the second MCS and the second resource block.
    Type: Application
    Filed: March 7, 2007
    Publication date: September 11, 2008
    Applicant: MOTOROLA, INC.
    Inventors: Philippe J. Sartori, Kevin L. Baum, Brian K. Classon, Arvind Krishnamoorthy, Robert T. Love, Yakun Sun
  • Patent number: 7423997
    Abstract: A wireless communication network (100) wherein information is communicated in frames comprising multiple sub-frames, including grouping a terminal in first and second groups, assigning the first and second groups to less than all sub-frames in a frame, assigning a control channel of at least one assigned sub-frame to the first and second groups.
    Type: Grant
    Filed: October 4, 2005
    Date of Patent: September 9, 2008
    Assignee: Motorola, Inc.
    Inventors: Ravi Kuchibhotla, Brian K. Classon, Robert T. Love, Kenneth A. Stewart
  • Publication number: 20080205636
    Abstract: A method and apparatus for turbo encoding with a contention-free interleaver is provided herein. During operation an input block of size K? is received. The original input block and the interleaved input block are encoded to obtain a codeword block, wherein the original input block is interleaved using an interleaver of size K? and a permutation ?(i)=(fi×i+f2×i2)mod K?, where 0?i?K?-1 is the sequential index of the symbol positions after interleaving, ?(i) is the symbol index before interleaving corresponding to position i, K? is the interleaver size in symbols, and f1 and f2 are the factors defining the interleaver. The values of K?, f1, f2 are taken from at least one row of a table. The codeword block is transmitted through the channel.
    Type: Application
    Filed: February 28, 2007
    Publication date: August 28, 2008
    Applicant: MOTOROLA, INC.
    Inventors: Ajit Nimbalker, Yufei W. Blankenship, Brian K. Classon
  • Publication number: 20080192847
    Abstract: A communication is provided that schedules both Distributed Virtual Resource Blocks (DVRB) and Localized Virtual Resource Blocks (LVRB) in a same frequency channel, thereby obtaining the benefits of frequency selective scheduling while minimizing the uplink feedback overhead. In one embodiment of the invention, the communication system assigns one or more downlink Physical Resource Blocks (PRBs) of multiple downlink Physical Resource Blocks (PRBs) to each user equipment (UE) given an LVRB to produce at least one reserved PRB and multiple non-reserved PRBs and assigns a part of each PRB of the multiple non-reserved PRBs to a UE given a DVRB. In another embodiment of the invention, the communication system assigns PRBs pre-reserved for localized transmission to UEs scheduled for LVRBs and assigns parts of multiple PRBs pre-reserved for distributed transmission to each UE given a DVRB.
    Type: Application
    Filed: January 31, 2008
    Publication date: August 14, 2008
    Applicant: MOTOROLA, INC.
    Inventors: Brian K. Classon, Kevin L. Baum, Amitava Ghosh, Robert T. Love, Vijay Nangia, Rapeepat Ratasuk, Weimin Xiao
  • Patent number: 7400856
    Abstract: Communications sourced by a remote unit (14) that is already within reception range of a base site (10) can nevertheless be further facilitated through allocation of one or more relay resources (15, 16). Such relay resources, properly employed, then serve to effectively increase the quality of service for the facilitated communication. This, in turn, can permit the use of, for example, increased data rates for communications from a relatively low power remote unit.
    Type: Grant
    Filed: September 3, 2003
    Date of Patent: July 15, 2008
    Assignee: Motorola, Inc.
    Inventors: Philippe J. Sartori, Kevin L. Baum, Brian K. Classon, Mark Cudak, Vijay Nangia, Eugene Visotsky
  • Patent number: 7397803
    Abstract: A method and system for dynamic rate switching via medium access channel layer signaling is disclosed, wherein data rates for high data rate channels are automatically shifted up or down based on a predetermined metric. In a preferred embodiment, data rates are automatically shifted up or down based on transmit channel gain required to maintain a required signal to noise ratio.
    Type: Grant
    Filed: July 8, 2004
    Date of Patent: July 8, 2008
    Assignee: Motorola, Inc.
    Inventors: Robert T. Love, Ron Rotstein, Mark C. Cudak, Brian K. Classon
  • Publication number: 20080133998
    Abstract: A method and apparatus for selecting interleaver sizes for turbo codes is provided herein. During operation information block of size K is received. An interleaver size K? is determined that is related to K?, where K? from a set of sizes; wherein the set of sizes comprise K?=ap×f, pmin?p?pmax;fmin?f?fmax, wherein a is an integer and f is a continuous integer between fmin and fmax, p takes integer values between pmin and pmax, a>1, pmax>pmin, pmin>1. The information block of size K is padded into an input block of size K? using filler bits, if needed. Encoding is performed using the original input block and the interleaved input block to obtain a codeword block using a turbo encoder. The codeword block is transmitted through the channel.
    Type: Application
    Filed: March 7, 2007
    Publication date: June 5, 2008
    Applicant: MOTOROLA, INC.
    Inventors: Ajit Nimbalker, Yufei W. Blankenship, Brian K. Classon