Patents by Inventor Matthew James Fischer

Matthew James Fischer 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: 9113389
    Abstract: A transceiver of an apparatus supports communication with at least one additional apparatus. A baseband processing module indicates that first frame classification information includes at least a portion of MAC header content of a MAC frame via a filter and classification agreement included in the communication between the apparatus and the at least one additional apparatus.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: August 18, 2015
    Assignee: Broadcom Corporation
    Inventors: Qi Wang, Matthew James Fischer
  • Patent number: 9107099
    Abstract: Distributed signal field for communications within multiple user, multiple access, and/or MIMO wireless communications. In accordance with wireless communications, a signal (SIG) field employed within such packets is distributed or partitioned into at least two separate signal fields (e.g., SIG A and SIG B) that are located in different portions of the packet. A first of the SIG fields includes information that may be processed and decoded by all wireless communication devices, and a second of the SIG fields includes information that is specific to one or more particular wireless communication devices (e.g., a specific wireless communication device or a specific subset of the wireless communication devices). The precise locations of the at least first and second SIG fields within a packet may be varied, including placing a second of the SIG fields (e.g., including user-specific information) adjacent to and preceding a data field in the packet.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: August 11, 2015
    Assignee: Broadcom Corporation
    Inventors: Vinko Erceg, Joseph Paul Lauer, Matthew James Fischer, Peiman Amini, Joonsuk Kim
  • Patent number: 9094071
    Abstract: Beamforming protocol for wireless communications. Various communications are made between an originating communication device and a remote communication device to effectuate steered communications there between. The beamforming approach presented herein is applicable and adaptable to communication devices having any combination of omni-directional and directional transmit and receive functionality (e.g., the transmit functionality and the receive functionality both being omni-directional; the transmit functionality being directional and the receive functionality being omni-directional; or the transmit functionality and the receive functionality both being are directional). The beamforming protocol presented herein allows for all combinations of communication device types and also provides collision rules as may be performed in accordance with the beamforming configuration.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: July 28, 2015
    Assignee: Broadcom Corporation
    Inventors: Saishankar Nandagopalan, Matthew James Fischer
  • Patent number: 9049616
    Abstract: Session recovery after network coordinator or AP restart for single user, multiple user, multiple access, and/or MIMO wireless communications. Restart or reset of a network coordinator (e.g., an access point (AP) or other network coordinator type device) may occur for various reasons (e.g., a power cycle or power failure, inadequate failover protection, scheduled or planned power outages such as for including network maintenance, software upgrades, etc.). Upon determination of network coordinator restarted or reset, a singular bit within a communication from the network coordinator indicates synchronization or not of the its timing synchronization function (TSF) (e.g., with other devices in the communication system, such as wireless stations (STAs), smart meter stations (SMSTAs), etc.). A given device (e.g., STA, SMSTA, etc.) can provide its current TSF to the network coordinator so that it can resynchronize, re-establish its scheduled for wake times of those devices (e.g., target wake times (TWTs)), etc.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 2, 2015
    Assignee: Broadcom Corporation
    Inventors: Chiu Ngok Eric Wong, Matthew James Fischer
  • Patent number: 9048895
    Abstract: Multi-user null data packet (MU-NDP) sounding within multiple user, multiple access, and/or MIMO wireless communications. Within communication systems including multiple wireless communication devices (e.g., one or more APs, STAs, etc.), channel sounding of the selected communication links between the various wireless communication devices is performed. A MU-NDP announcement frame is transmitted to and received by various wireless communication devices indicating which of those wireless communication devices (e.g., one, some, or all) are being sounded. Then, respective NDP sounding frames are transmitted via the communication links corresponding to those wireless communication devices (e.g., one, some, or all) are being sounded, and sounding feedback signals are subsequently sent back to the original transmitting wireless communication device.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: June 2, 2015
    Assignee: Broadcom Corporation
    Inventors: Joonsuk Kim, Matthew James Fischer, Peiman Amini, Vinko Erceg
  • Patent number: 9049662
    Abstract: Target wake time (TWT) within single user, multiple user, multiple access, and/or MIMO wireless communications. Within communication systems including different respective devices therein (e.g., wireless stations (STAs), smart meter stations (SMSTAs), etc.), coordination is made with respect to those devices awakening from less than full power state (e.g., from sleep, reduce functionality, power saving state, etc.). A TWT information element (IE) may be included within a frame or a signal corresponding to or based on that frame that is transmitted from one device to other device(s). One or more respective future targeted times (e.g., which may be based on a timing synchronization function (TSF) reference time) at which device(s) may awaken from less than full power state may be included within the TWT IE. Over time, different respective TWT IEs may be provided from various devices, such that respective targeted awake times may be modified dynamically for any given device.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: June 2, 2015
    Assignee: Broadcom Corporation
    Inventor: Matthew James Fischer
  • Publication number: 20150146601
    Abstract: Time division multiple access (TDMA) media access control (MAC) adapted for single user, multiple user, multiple access, and/or MIMO wireless communications. Various com systems may include smart meter stations (SMSTAs) and/or wireless stations (STAs). Appropriate coordination is made with respect to such communication devices to ensure appropriate uplink (and/or downlink) communications between a network manager or coordinator (e.g., an access point (AP)) and the SMSTAs and/or STAs. With respect to SMSTAs, the relative duration of time that such communication devices are awake and operative versus asleep (or in a reduced power and/or functionality state) can be significant. Certain implementations may include a relatively large number of such communication devices (e.g., 10s, 100s, 1000s, or more), and appropriate coordination and scheduling of such communications to/from them is made using one or more variations of TDMA signaling (e.g.
    Type: Application
    Filed: January 28, 2015
    Publication date: May 28, 2015
    Applicant: BROADCOM CORPORATION
    Inventors: Peiman Amini, Matthew James Fischer
  • Patent number: 9042904
    Abstract: Techniques for localized dynamic channel allocation help meet the challenges of latency, memory size, and channel time optimization for wireless communication systems. As examples, advanced communication standards, such as the WiGig standard, may support wireless docking station capability and wireless streaming of high definition video content between transmitting and receiving stations, or engage in other very high throughput tasks. The techniques help to deliver the desired user experience in such an environment and support desired performance levels for latency and throughput while controlling memory footprint.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: May 26, 2015
    Assignee: Broadcom Corporation
    Inventors: Hongyu Xie, Srikanth Shubhakoti, Matthew James Fischer, Shawn Shiliang Ding, Gang Lu, Yuan Zhuang, Brima Ibrahim, Payam Torab Jahromi, Murat Mese
  • Publication number: 20150139159
    Abstract: Response frame modulation coding set (MCS) selection within single user, multiple user, multiple access, and/or MIMO wireless communications. With respect to any exchange between communication devices in which there is a response frame, a first frame (e.g., an eliciting frame) is a first transmitted from the eliciting communication device to the responding communication device, and a second frame (e.g., a response frame) is transmitted from the responding communication device to the eliciting communities device. Appropriate selection of MCS to be used within the response frame may be determined explicitly or implicitly. One or more parameters (e.g., a limit parameter, a reduction parameter, etc.) may be used to determine the MCS of the response frame. The MCS employed for a response frame may be selected from a basic MCS set that ensures all response frames from any responding communication device may be properly received by the eliciting communication device.
    Type: Application
    Filed: January 28, 2015
    Publication date: May 21, 2015
    Applicant: BROADCOM CORPORATION
    Inventors: Peiman Amini, Matthew James Fischer
  • Patent number: 9007983
    Abstract: Channel characterization and training within multiple user, multiple access, and/or MIMO wireless communications. Within such communication systems, there can be a number of devices (e.g., STAs) that communicate with a single device (e.g., AP). A multi-cast sounding frame may be transmitted from a transmitting device to a number of receiving devices. Appropriate scheduling or ordering of feedback signals from some or all of the receiving devices may be performed explicitly (e.g., sounding frame sent from the transmitting device to a receiving device) or implicitly (e.g., control information sent from the transmitting device to the receiving device, sounding frame sent to the transmitting device from the receiving device). Such characterization and training is with respect to a channel or path in which data will subsequently follow. Such characterization and training can be performed in accordance with group membership (e.g., with respect to only some of the receiving devices).
    Type: Grant
    Filed: June 28, 2013
    Date of Patent: April 14, 2015
    Assignee: Broadcom Corporation
    Inventors: Matthew James Fischer, Joonsuk Kim, Peiman Amini, Joseph Paul Lauer, Vinko Erceg
  • Publication number: 20150094103
    Abstract: A wireless communication device (WDEV) receives, detects, snoops, etc. (generally, “receives”) signals that are transmitted between two other WDEVs and extracts information therefrom to determine the location of the WDEV. These signals can include fine timing measurement (FTM) and/or timestamps related information as part of a frame exchange procedure between those two other WDEVs. A new protocol specifies when such an FTM and/or timestamps frame exchange procedure is performed between the two other WDEVs, and the WDEV intelligently detects/receives such signals at such specified times. When the WDEV operates in a reduced power or sleep state, the WDEV awakens from the reduced power or sleep state at the appropriate times to detect FTM and/or timestamps related information of such a frame exchange procedure. The WDEV then can process such FTM and/or timestamps related information for use in determining the location of the WDEV relative to the two other WDEVs.
    Type: Application
    Filed: September 30, 2014
    Publication date: April 2, 2015
    Applicant: BROADCOM CORPORATION
    Inventors: Qi Wang, Matthew James Fischer
  • Patent number: 8971304
    Abstract: Providing wireless transmission, where in a first transmission mode, transmitting a plurality of frames using a first interframe spacing interval. When in a second transmission mode, transmitting the plurality of frames using a second interframe spacing interval, wherein the second interframe spacing is less than the first interframe spacing.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: March 3, 2015
    Assignee: Broadcom Corporation
    Inventors: Rajendra Tushar Moorti, Matthew James Fischer, George Kondylis
  • Patent number: 8965431
    Abstract: A control device includes a first transceiver for communicating first control data with a first plurality of devices that utilize the millimeter wave frequency band in accordance with a first protocol, wherein the first transceiver utilizes the millimeter wave frequency band in accordance with the first protocol. A second transceiver communicates second control data with a second plurality of devices that utilize the millimeter wave frequency band in accordance with a second protocol, wherein the second transceiver utilizes the millimeter wave frequency band in accordance with the second protocol. A resource controller allocates resources of the millimeter wave frequency band to the first plurality of devices and the second plurality of devices based on the first control data and the second control data.
    Type: Grant
    Filed: August 22, 2011
    Date of Patent: February 24, 2015
    Assignee: Broadcom Corporation
    Inventors: Jeyhan Karaoguz, Jason A. Trachewsky, Vinko Erceg, Matthew James Fischer, Christopher J. Hansen, Saishankar Nandagopalan, Murat Mese
  • Patent number: 8958398
    Abstract: Time division multiple access (TDMA) media access control (MAC) adapted for single user, multiple user, multiple access, and/or MIMO wireless communications. Various com systems may include smart meter stations (SMSTAs) and/or wireless stations (STAs). Appropriate coordination is made with respect to such communication devices to ensure appropriate uplink (and/or downlink) communications between a network manager or coordinator (e.g., an access point (AP)) and the SMSTAs and/or STAs. With respect to SMSTAs, the relative duration of time that such communication devices are awake and operative versus asleep (or in a reduced power and/or functionality state) can be significant. Certain implementations may include a relatively large number of such communication devices (e.g., 10s, 100a, 1000s, or more), and appropriate coordination and scheduling of such communications to/from them is made using one or more variations of TDMA signaling (e.g.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: February 17, 2015
    Assignee: Broadcom Corporation
    Inventors: Peiman Amini, Matthew James Fischer
  • Publication number: 20150043549
    Abstract: One or multiple bit restricted access window (RAW) end point determination within for single user, multiple user, multiple access, and/or MIMO wireless communications. A RAW is defined in which only devices of the particular class (e.g., low power class, Z class, smart meter station (SMSTA) class, etc.) are allowed access to the communication medium. Indication of the end of such a RAW may be included within one or more bits set within a signal field (SIG) field of a framer packet generated by a given device within the system and transmitted to one or more other devices. After completion of the RAW, other respective devices of at least one other type of class may be provided access to the communication medium. The manner of access to the communication media outside of the RAW may be varied (e.g., scheduled, based on carrier sense multiple access/collision avoidance (CSMA/CA), etc.).
    Type: Application
    Filed: October 24, 2014
    Publication date: February 12, 2015
    Applicant: BROADCOM CORPORATION
    Inventor: Matthew James Fischer
  • Patent number: 8953659
    Abstract: Response frame modulation coding set (MCS) selection within single user, multiple user, multiple access, and/or MIMO wireless communications. With respect to any exchange between communication devices in which there is a response frame, a first frame (e.g., an eliciting frame) is a first transmitted from the eliciting communication device to the responding communication device, and a second frame (e.g., a response frame) is transmitted from the responding communication device to the eliciting communities device. Appropriate selection of MCS to be used within the response frame may be determined explicitly or implicitly. One or more parameters (e.g., a limit parameter, a reduction parameter, etc.) may be used to determine the MCS of the response frame. The MCS employed for a response frame may be selected from a basic MCS set that ensures all response frames from any responding communication device may be properly received by the eliciting communication device.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: February 10, 2015
    Assignee: Broadcom Corporation
    Inventors: Peiman Amini, Matthew James Fischer
  • Publication number: 20150016332
    Abstract: Management frame map directed operational parameters within multiple user, multiple access, and/or MIMO wireless communications. A management frame map may be generated within and transmitted from a first wireless communication device to a group of other wireless communication devices. Thereafter, certain subsequently transmitted packets may be analyzed and processed by the receiving wireless communication devices based on that earlier received management frame map. One or more operational parameters are determined for a subsequently transmitted packet based on the previously received management frame map. The operational parameters govern the manner in which at least a portion of the subsequently transmitted packet is processed.
    Type: Application
    Filed: September 29, 2014
    Publication date: January 15, 2015
    Applicant: BROADCOM CORPORATION
    Inventors: Matthew James Fischer, Vinko Erceg, Joonsuk Kim, Joseph Paul Lauer, Peiman Amini
  • Publication number: 20140369276
    Abstract: A communication device includes a processor configured to generate OFDMA packets using various OFDMA packet structures and to transmit such OFDMA packets, via a communication interface, to at least one other communication device. The processor is also configured to receive, interpret, and process such OFDMA packets. One example of an OFDMA packet includes common SIG for two or more other wireless communication devices modulated across all sub-carriers of the OFDMA packet. The common SIG is followed by first SIG and first data for a first other wireless communication device modulated across first subset of the sub-carriers of the OFDMA packet and is also followed by second SIG and second data for a second other wireless communication device modulated across second subset of the sub-carriers of the OFDMA packet. Another example of an OFDMA packet includes the common SIG followed directly by first data and second data modulated as described above.
    Type: Application
    Filed: June 12, 2014
    Publication date: December 18, 2014
    Applicant: BROADCOM CORPORATION
    Inventors: Ron Porat, Matthew James Fischer, Nihar Jindal, Vinko Erceg
  • Patent number: 8913560
    Abstract: One or multiple bit restricted access window (RAW) end point determination within for single user, multiple user, multiple access, and/or MIMO wireless communications. A RAW is defined in which only devices of the particular class (e.g., low power class, Z class, smart meter station (SMSTA) class, etc.) are allowed access to the communication medium. Indication of the end of such a RAW may be included within one or more bits set within a signal field (SIG) field of a framer packet generated by a given device within the system and transmitted to one or more other devices. After completion of the RAW, other respective devices of at least one other type of class may be provided access to the communication medium. The manner of access to the communication media outside of the RAW may be varied (e.g., scheduled, based on carrier sense multiple access/collision avoidance (CSMA/CA), etc.).
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: December 16, 2014
    Assignee: Broadcom Corporation
    Inventor: Matthew James Fischer
  • Publication number: 20140362840
    Abstract: Coordination and synchronization is performed between two or more wireless network managers (e.g., access points (APs)). A first wireless network manager supports first communications with first other wireless communication devices, and a second wireless network manager supports second communications with those first and/or second other wirelessly case devices. The first and second wireless network managers also support communications with one another to coordinate the first and second communications supported with the first and/or second other wireless communication devices. Examples of coordination include selection of which other wireless communication devices are serviced or in communication with which of the first and second wireless network managers, selection of operational parameters (e.g., modulation coding set (MCS), beamforming, frequency band assignment, channel assignment, scheduling information, transmit power, etc.
    Type: Application
    Filed: June 5, 2014
    Publication date: December 11, 2014
    Applicant: BROADCOM CORPORATION
    Inventors: Chiu Ngok Eric Wong, Ron Porat, Nihar Jindal, Matthew James Fischer, Vinko Erceg