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: 8780937
    Abstract: During operation radio frames are divided into a plurality of subframes. A frame duration is selected from two or more possible frame durations. Further, a subframe type is selected from two or more types of subframes. Data is placed within the plurality of subframes and is transmitted over the radio frames.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: July 15, 2014
    Assignee: Motorola Mobility LLC
    Inventors: Brian K. Classon, Kevin L. Baum, Amitava Ghosh, Robert T. Love, Vijay Nangia, Kenneth A. Stewart
  • Patent number: 8767525
    Abstract: A method and apparatus is provided for transmitting an orthogonal frequency domain multiple access (OFDMA) signal including a synchronization channel signal transmitted within a localized portion of a bandwidth of the OFDMA signal, the synchronization channel signal having predetermined time domain symmetry within the localized portion of the bandwidth and including information for providing at least partial cell identification information. The synchronization channel signal enables an initial acquisition and cell search method with low computational load which provides OFDMA symbol timing detection and frequency error detection and frame boundary detection and cell specific information detection in an OFDMA system supporting multiple system bandwidths, both synchronized and un-synchronized systems, a large cell index and an OFDMA symbol structure with both short and long cyclic prefix length.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: July 1, 2014
    Assignee: Motorola Mobility LLC
    Inventors: Hidenori Akita, Kevin L. Baum, Brian K. Classon, Massaya Fukuta, Hiroshi Hayashi, Vijay Nangia, Robert T. Love, Kenneth A. Stewart
  • Patent number: 8761278
    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: Grant
    Filed: February 22, 2011
    Date of Patent: June 24, 2014
    Assignee: Motorola Mobility LLC
    Inventor: Brian K. Classon
  • Publication number: 20140044064
    Abstract: A method in a wireless communication terminal (103), including receiving a radio resource allocation comprising a plurality of sub-carriers that is a subset of available sub-carriers, wherein the available sub-carriers include a DC sub-carrier, wherein the DC sub-carrier and all but one edge-most sub-carrier of the plurality of sub-carriers are designated for transmission if the DC sub-carrier is between any two sub-carriers of the allocation, and all of the sub-carriers except the DC sub-carrier from the plurality of sub-carriers are designated for transmission if the DC sub-carrier is not between any two sub-carriers of the allocation.
    Type: Application
    Filed: August 7, 2013
    Publication date: February 13, 2014
    Inventors: VIJAY NANGIA, KEVIN L. BAUM, BRIAN K. CLASSON, HYEJUNG JUNG, ROBERT T. LOVE, KENNETH A. STEWART
  • Patent number: 8611300
    Abstract: Various embodiments are described which can serve to mitigate interference between the control channel signaling of adjacent sectors/cells. Potentially, these techniques may have the benefit of reducing the system resource drain caused by control channels, particularly control channels in high frequency-reuse, OFDMA systems. A transmitting device (101) transmits primary control channel information to a plurality of user devices (102). The primary control channel information includes an indication that a first OFDMA resource region (e.g., 320 or 330) is assigned to at least one user device of the plurality of user devices. The transmitting device correspondingly transmits secondary control channel information to the at least one user device using the first OFDMA resource region.
    Type: Grant
    Filed: January 16, 2007
    Date of Patent: December 17, 2013
    Assignee: Motorola Mobility LLC
    Inventors: Weimin Xiao, Amitava Ghosh, Rapeepat Ratasuk, Brian K. Classon, Kevin L. Baum, Robert T. Love
  • Publication number: 20130294343
    Abstract: A method and apparatus is provided for transmitting an orthogonal frequency domain multiple access (OFDMA) signal including a synchronization channel signal transmitted within a localized portion of a bandwidth of the OFDMA signal, the synchronization channel signal having predetermined time domain symmetry within the localized portion of the bandwidth and including information for providing at least partial cell identification information. The synchronization channel signal enables an initial acquisition and cell search method with low computational load which provides OFDMA symbol timing detection and frequency error detection and frame boundary detection and cell specific information detection in an OFDMA system supporting multiple system bandwidths, both synchronized and un-synchronized systems, a large cell index and an OFDMA symbol structure with both short and long cyclic prefix length.
    Type: Application
    Filed: July 5, 2013
    Publication date: November 7, 2013
    Inventors: Hidenori Akita, Kevin L. Baum, Brian K. Classon, Massaya Fukuta, Hiroshi Hayashi, Vijay Nangia, Robert T. Love, Kenneth A. Stewart
  • Patent number: 8559295
    Abstract: A pilot transmission scheme is presented where during a first OFDM symbol period a first pilot sequence is transmitted over a first multiple sub-carriers on a first group of antennas. During a second OFDM symbol period, a second pilot sequence is transmitted over a second multiple sub-carriers on a second group of antennas. The first and the second groups of antennas only transmit one pilot sequence every subframe of M OFDM symbol periods.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: October 15, 2013
    Assignee: Motorola Mobility LLC
    Inventors: Timothy A. Thomas, Kevin L. Baum, Brian K. Classon, Vijay Nangia
  • Patent number: 8553594
    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: Grant
    Filed: March 20, 2007
    Date of Patent: October 8, 2013
    Assignee: Motorola Mobility LLC
    Inventors: Kevin L. Baum, Brian K. Classon, Arvind Krishnamoorthy, Vijay Nangia, Philippe J. Sartori
  • Patent number: 8520496
    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: Grant
    Filed: April 4, 2011
    Date of Patent: August 27, 2013
    Assignee: Motorola Mobiity LLC
    Inventors: Ajit Nimbalker, Yufei W. Blankenship, Brian K. Classon
  • Patent number: 8509323
    Abstract: A method in a wireless communication terminal includes receiving a radio resource allocation having a plurality of sub-carriers that are a subset of available sub-carriers. The available sub-carriers include a DC sub-carrier wherein the DC sub-carrier and all but one edge-most sub-carrier of the plurality of sub-carriers are designated for transmission if the DC sub-carrier is between any two sub-carriers of the allocation, and all of the sub-carriers except the DC sub-carrier are designated for transmission if the DC sub-carrier is not between any two sub-carriers of the allocation.
    Type: Grant
    Filed: August 22, 2006
    Date of Patent: August 13, 2013
    Assignee: Motorola Mobility LLC
    Inventors: Vijay Nangia, Kevin L. Baum, Brian K. Classon, Hyejung Jung, Robert T. Love, Kenneth A. Stewart
  • Patent number: 8483086
    Abstract: A method and apparatus for generating a single statically defined downlink reference MCS table consisting of transport block sizes (TBSs) computed for 29 MCSs for each of j PRBs where j=1, . . . , NRBDL. Three entries of the MCS table are reserved for implicit modulation order signaling (e.g. in the downlink) or implicit redundancy version signaling (e.g. in the uplink). Each MCS entry in the table is populated by a TBS and the table entries are accessed based on a 5-bit MCS index and resource allocation information, indicating the number of PRBs is signaled via a scheduling message which may be a grant or assignment message. A grant or assignment message may further include a 5-bit MCS field for each transport block which, along with the resource allocation information, enables the UE to determine the scheduled TBS.
    Type: Grant
    Filed: September 17, 2012
    Date of Patent: July 9, 2013
    Assignee: Motorola Mobility LLC
    Inventors: Ajit Nimbalker, Brian K. Classon, Robert T. Love, Vijay Nangia
  • Patent number: 8478328
    Abstract: A wireless communication entity schedulable in a wireless communication network include a radio receiver that receives radio resource assignment information including a bandwidth allocation, a controller communicably coupled to the power amplifier, wherein the controller varies an operational maximum power level of the schedulable wireless communication entity based on whether the schedulable wireless communication entity is communicating time-critical traffic or non-time-critical traffic, and wherein the operational maximum power level limits an instantaneous power at which the schedulable wireless communication entity may transmit on the radio resource assigned.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: July 2, 2013
    Assignee: Motorola Mobility LLC
    Inventors: Robert T. Love, Brian K. Classon, Edgar P. Fernandes, Armin W. Klomsdorf, Vijay Nangia, Ravikiran Nory, Dale G. Schwent, Kenneth A. Stewart, David R. Wilson
  • Patent number: 8463314
    Abstract: A wireless communication entity schedulable in a wireless communication network includes a radio receiver that receives radio resource assignment information including a bandwidth allocation, and a controller communicably coupled to the power amplifier, wherein the controller varies an operational maximum power level of the schedulable wireless communication entity in accordance with a protocol state governing the schedulable wireless communication entity, wherein the operational maximum power level limits an instantaneous power at which the schedulable wireless communication entity may transmit on the radio resource assigned.
    Type: Grant
    Filed: March 13, 2012
    Date of Patent: June 11, 2013
    Assignee: Motorola Mobility LLC
    Inventors: Robert T. Love, Brian K. Classon, Edgar P. Fernandes, Armin W. Klomsdorf, Vijay Nangia, Ravikiran Nory, Dale G. Schwent, Kenneth A. Stewart, David R. Wilson
  • Patent number: 8400998
    Abstract: A method in a wireless communication terminal (103) including receiving a plurality of sub-frames having time-frequency resource elements and resource allocation fields associated with a corresponding sub-frame, wherein the resource allocation fields indicate a resource assignment. In another embodiment, terminal receives a radio frame comprising a plurality of sub-frames and a frequency diverse allocation field indicating frequency diverse resource allocations in multiple sub-frames of the radio frame.
    Type: Grant
    Filed: August 23, 2006
    Date of Patent: March 19, 2013
    Assignee: Motorola Mobility LLC
    Inventors: Ravi Kuchibhotla, Brian K. Classon, Robert T. Love, Ravikiran Nory, Philippe J. Sartori, Kenneth A. Stewart, Yakun Sun, Anup K. Talukdar
  • Publication number: 20130016694
    Abstract: A method and apparatus for generating a single statically defined downlink reference MCS table consisting of transport block sizes (TBSs) computed for 29 MCSs for each of j PRBs where j=1, . . . , NRBDL. Three entries of the MCS table are reserved for implicit modulation order signaling (e.g. in the downlink) or implicit redundancy version signaling (e.g. in the uplink). Each MCS entry in the table is populated by a TBS and the table entries are accessed based on a 5-bit MCS index and resource allocation information, indicating the number of PRBs is signaled via a scheduling message which may be a grant or assignment message. A grant or assignment message may further include a 5-bit MCS field for each transport block which, along with the resource allocation information, enables the UE to determine the scheduled TBS.
    Type: Application
    Filed: September 17, 2012
    Publication date: January 17, 2013
    Applicant: MOTOROLA MOBILITY LLC
    Inventors: Ajit Nimbalker, Brian K. Classon, Robert T. Love, Vijay Nangia
  • Patent number: 8356232
    Abstract: A method and apparatus for turbo coding and decoding is provided herein. During operation, a concatenated transport block (CTB) of length X is received and a forward error correction (FEC) block size KI is determined from a group of available non-contiguous FEC block sizes between Kmin and Kmax, and wherein Kmin?KI<Kmax and wherein KI is additionally based on X. The concatenated transport block of length X is segmented into C segments each of size substantially equal KI. An FEC codeword for each of the C segments is determined using FEC block size KI; and the C FEC codewords are transmitted over the channel.
    Type: Grant
    Filed: October 6, 2006
    Date of Patent: January 15, 2013
    Assignee: Motorola Mobility LLC
    Inventors: Yuei Wu Blankenship, T. Keith Blankenship, Brian K. Classon, Ajit Nimbalker
  • Patent number: 8327237
    Abstract: A wireless communication device includes a transmitter configured to transmit a transport block with a sequence of bits wherein A is the number of bits, a first CRC coder configured to generate a first block of CRC parity bits on a transport block and to associates the first block of CRC parity bits with the transport block, wherein a number of CRC parity bits in the first block is L, a segmenting entity configured to segment the transport block into multiple code blocks after associating when A+L is larger than 6144, a second CRC coder configured to generate a second block of CRC parity bits on each code block and to associate a second block of CRC parity bits with each code block, and a channel encoder configured to encode each of the code blocks including the associated second block of CRC parity bits if A+L>6144.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: December 4, 2012
    Assignee: Motorola Mobility LLC
    Inventors: Michael E. Buckley, Yufei W. Blankenship, Brian K. Classon, Ajit Nimbalker, Kenneth A. Stewart
  • Patent number: 8320267
    Abstract: A wireless terminal operating in TDD mode transmits a plurality of sounding reference signals using an assigned maximum sounding reference signal (SRS) bandwidth (BW) size. At least one of the sounding reference signals is transmitted in a corresponding uplink pilot time slot (UpPTS) region of a special sub-frame of a radio frame wherein, in the frequency dimension, an uplink BW center is misaligned with a BW center of the SRS in the UpPTS region, a maximum SRS BW size in the UpPTS region is an even number of resource blocks with prime factors from a set of {2, 3, 5}, and the maximum SRS BW having a size in number of resource blocks less than or equal to (NRBUL?6·NRA) where NRA is a number of Random Access Channel (RACH) opportunities in the UpPTS region.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: November 27, 2012
    Assignee: Motorola Mobility LLC
    Inventors: Na Wei, Vijay Nangia, Wen Zhou, Brian K Classon
  • Patent number: 8300658
    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: Grant
    Filed: March 21, 2007
    Date of Patent: October 30, 2012
    Assignee: Motorola Mobility LLC
    Inventors: Michael E. Buckley, Brian K. Classon, Kenneth A. Stewart
  • Patent number: 8295248
    Abstract: A method for scheduling a wireless communication entity based on channel quality information provided by the wireless entity, wherein scheduling is discontinued if channel quality information is not received from the wireless communication entity over a specified number of frames or if the channel quality information provided is insufficient to support a control channel. The wireless communication entity may discontinue reporting channel quality information if the channel quality measured over a specified number of frames is below a threshold. Scheduling may be discontinued by blocking, removing or preempting the scheduling of the wireless entity.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: October 23, 2012
    Assignee: Motorola Mobility LLC
    Inventors: Ravi Kuchibhotla, Brian K Classon, Robert T Love, Ravikiran Nory, Kenneth A Stewart, Yakun Sun