Patents by Inventor Joseph A. Kwak
Joseph A. Kwak 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).
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Patent number: 8265051Abstract: A beacon signal used in data communications, such as the IEEE 802.11, is provided with data extensions. The data extensions permit additional information to be provided by the beacon signal, thereby reducing the traffic overhead of the network. The data extensions further permit handoffs and handoffs based on offset values. Periodic beacon requests are made during connection between a wireless transmit/receive unit (WTRU) and an access point (AP) on a WLAN. A Measurement Request field corresponding to a beacon request contains a measurement duration value and channel number for which the request applies. The beacon request permits a scan mode which includes “Active Scan” mode, “Passive Scan” mode and “Beacon Table” mode. In Active Scan mode, the measuring station (STA) transmits a probe request with a broadcast SSID.Type: GrantFiled: April 20, 2010Date of Patent: September 11, 2012Assignee: InterDigital Technology CorporationInventor: Joseph A. Kwak
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Publication number: 20120178407Abstract: A method and device may be used for selecting a network for initiating an emergency call. The network selection may be based on stored information and/or a network connection status. The stored information may include a network priority for placing the emergency call.Type: ApplicationFiled: March 21, 2012Publication date: July 12, 2012Applicant: INTERDIGITAL TECHNOLOGY CORPORATIONInventors: Marian Rudolf, Juan Carlos Zuniga, Shamim Akbar Rahman, Joseph A. Kwak
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Publication number: 20120142390Abstract: A method and device may be used to produce a received interference value in wireless communications. The device may include one or more components to measure a received power of a channel and measure an average noise plus interference power of the channel. The device may include a processor configured to calculate a received signal to noise indicator (RSNI) value. The RSNI may be based on the measured received power and the measured average noise plus interference power.Type: ApplicationFiled: February 13, 2012Publication date: June 7, 2012Applicant: INTERDIGITAL COMMUNICATIONS CORPORATIONInventor: Joseph A. Kwak
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Publication number: 20120140756Abstract: A method and wireless communication system may be used for transferring management information. An access point (AP) may transmit a management information base (MIB) information request including a category field and an action details field to a wireless transmit/receive (WTRU). In response to receiving the information request, the WTRU may determine whether or not to provide management information to the AP. When the WTRU provides management information to the AP, the WTRU may compile management information stored in a MIB located in the WTRU and transmit a MIB information report to the AP. The MIB may list a plurality of tables containing information associated with radio resource management (RRM) and at least one table containing physical layer measurements. The AP may include a MIB for storing MIB information of the WTRU. The AP may transmit the stored MIB information of the WTRU in response to a request.Type: ApplicationFiled: February 15, 2012Publication date: June 7, 2012Applicant: INTERDIGITAL TECHNOLOGY CORPORATIONInventors: Marian Rudolf, Stephen G. Dick, Teresa Joanne Hunkeler, Shamim Akbar Rahman, Joseph A. Kwak
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Publication number: 20120120928Abstract: A user equipment for physical layer automatic repeat request is disclosed. The user equipment comprises a higher layer automatic repeat request (ARQ) mechanism, a physical layer transmitter, a physical layer receiver, an acknowledgment (ACK) transmitter and an adaptive modulation and control unit (AMC). A higher layer ARQ mechanism generates data for transmission. A physical layer transmitter receives the data for transmission from the higher layer ARQ mechanism, to format the received data into packets for transmission. A physical layer receiver receives and demodulates received packets and retransmission statistics. An ACK transmitter transmits a corresponding acknowledgment for a given packet at the physical layer receiver. An AMC unit adjusts a particular encoding/data modulation of each packet using collected retransmission statistics.Type: ApplicationFiled: January 23, 2012Publication date: May 17, 2012Applicant: INTERDIGITAL TECHNOLOGY CORPORATIONInventor: Joseph A. Kwak
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Publication number: 20120094681Abstract: A method for managing channel selection in a dynamic spectrum management network includes receiving a spectrum allocation request; based on the source of the spectrum allocation request, checking for available channels; based on the source of the spectrum allocation request, collecting sensing and usage data for the available channels; providing the channel usage data to an entity that transmitted the spectrum allocation request.Type: ApplicationFiled: October 12, 2011Publication date: April 19, 2012Applicant: INTERDIGITAL PATENT HOLDINGS, INC.Inventors: Martino M. Freda, Parul Mudgal, Jean-Louis Gauvreau, Athmane Touag, Rocco DiGirolamo, Amith V. Chincholi, Joseph M. Murray, Chunxuan Ye, Scott Laughlin, Zinan Lin, Alexander Reznik, Saad Ahmad, Joseph A. Kwak, Juan Carlos Zuniga, Angelo A. Cuffaro
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Patent number: 8145182Abstract: A device for identifying an emergency call in a wireless local area network includes an indicator to identify a call as an emergency call. The indicator can be a bit flag or an information element. The information element can include location information regarding the location of the station that placed the emergency call. This information can be used to located the caller. The location information can be transmitted from the station to an access point separately from an emergency call.Type: GrantFiled: May 9, 2005Date of Patent: March 27, 2012Assignee: InterDigital Technology CorporationInventors: Marian Rudolf, Juan Carlos Zuniga, Shamim Akbar Rahman, Joseph A. Kwak
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Patent number: 8121098Abstract: A method and wireless communication system for transferring management information. The system includes at least one access point (AP) including a first management entity and a second management entity, and at least one wireless transmit/receive unit (WTRU) including a third management entity and a fourth management entity. The AP transmits a management information base (MIB) information request action frame including a category field and an action details field to the WTRU. In response to receiving the information request action frame, the WTRU determines whether or not to provide management information to the AP. When the WTRU provides management information to the AP, the WTRU compiles management information stored in a MIB located in the WTRU and transmits a MIB information report action frame to the AP. The MIB lists a plurality of tables containing information associated with radio resource management (RRM) and at least one table containing physical layer measurements.Type: GrantFiled: July 14, 2004Date of Patent: February 21, 2012Assignee: InterDigital Technology CorporationInventors: Marian Rudolf, Stephen G. Dick, Teresa Joanne Hunkeler, Shamim Akbar Rahman, Joseph A. Kwak
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Patent number: 8116692Abstract: A method and device may be used to produce a received interference value in wireless communications. A wireless transmit/receive unit comprising a radio frequency signal measurement device may be configured to produce a value indicating a radio frequency signal, noise and interference received power. An average noise plus interference measuring device may be configured to produce a value indicating a measured average noise plus interference metric. A received signal to noise indication calculation device may be configured to calculate a received signal to noise indicator from the value indicating a radio frequency signal, noise and interference received power and the value may indicate a measured average noise plus interference metric.Type: GrantFiled: June 14, 2010Date of Patent: February 14, 2012Assignee: InterDigital Communications CorporationInventor: Joseph A. Kwak
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Patent number: 8102801Abstract: A user equipment for physical layer automatic repeat request is disclosed. The user equipment comprises a higher layer automatic repeat request (ARQ) mechanism, a physical layer transmitter, a physical layer receiver, an acknowledgment (ACK) transmitter and an adaptive modulation and control unit (AMC). A higher layer ARQ mechanism generates data for transmission. A physical layer transmitter receives the data for transmission from the higher layer ARQ mechanism, to format the received data into packets for transmission. A physical layer receiver receives and demodulates received packets and retransmission statistics. An ACK transmitter transmits a corresponding acknowledgment for a given packet at the physical layer receiver. An AMC unit adjusts a particular encoding/data modulation of each packet using collected retransmission statistics.Type: GrantFiled: January 7, 2010Date of Patent: January 24, 2012Assignee: InterDigital Technology CorporationInventor: Joseph A Kwak
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Publication number: 20110305139Abstract: A method and apparatus may be used for network management via MAC measurements. The measurements may include WTRU uplink traffic loading measurement, and an AP service loading measurement. The measurements may be applicable to at least to layers 1 and 2 as applied to, for example, 802.11k in the context of OFDM and CDMA 2000 systems, but may be applicable to other scenarios as well. A method for determining and transmitting congestion information may be provided for a Wireless Local Area Network (WLAN) system. The method and apparatus may be used for managing congestion when congestion is detected. The method and apparatus may be used in wireless systems that use a Carrier Sense Multiple Access/Collision Avoidance (CSMA/CA) mechanism. The methods may be implemented in wireless transmit/receive units (WTRU)s and access points (AP)s of various forms.Type: ApplicationFiled: August 18, 2011Publication date: December 15, 2011Applicant: INTERDIGITAL TECHNOLOGY CORPORATIONInventors: Joseph A. Kwak, Marian Rudolf, Teresa Joanne Hunkeler, Shamim Akbar Rahman, Angelo Cuffaro, Christopher Cave, Vincent Roy, Athmane Touag, Frank LaSita, Ahmed Ali, Paul Marinier
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Patent number: 8005055Abstract: An improved method of network management, particularly in the context of standards IEEE802.11 and IEEE802.11k, through two new MAC measurements, with attendant advantages. The two new measurements include WTRU uplink traffic loading measurement, and an AP service loading measurement and is generally applicable at least to layers 1 and 2 as applied to a least 802.11k in the context of OFDM and CDMA 2000 systems, but is applicable to other scenarios as well. A Method for determining and advertising congestion is also provided for a Wireless Local Area Network (WLAN) system. The present invention also introduces a method for managing congestion when congestion is detected. This aspect of the present invention applies primarily to wireless systems that use the Carrier Sense Multiple Access/Collision Avoidance (CSMA/CA) mechanism. The methods are advantageously implemented in selectively configured WTRUs of various forms.Type: GrantFiled: September 13, 2004Date of Patent: August 23, 2011Assignee: InterDigital Technology CorporationInventors: Joseph A. Kwak, Angelo Cuffaro, Paul Marinier, Christopher Cave, Frank La Sita, Ahmed Ali, Vincent Roy, Athmane Touag, Marian Rudolf, Teresa Joanne Hunkeler, Shamim Akbar Rahman
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Publication number: 20110019104Abstract: Disclosed herein are methods and apparatus for the communication of wireless data using diverse radio access technologies (RATs) in Television Band (TVBD) frequencies. An architecture for communicating wireless data in TVBD frequencies may include one or more network nodes that perform functions related to the coordination of channel quieting across multiple diverse RATs. Channel quieting may be performed across multiple diverse RATs by using temporary channel reassignments, by aggregating wireless transmit/receive units (WTRUs) that use a particular RAT onto the same channel, and/or via other techniques.Type: ApplicationFiled: April 6, 2010Publication date: January 27, 2011Applicant: INTERDIGITAL PATENT HOLDINGS, INC.Inventors: Joseph A. Kwak, Alexander Reznik, Juan Carlos Zuniga
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Publication number: 20100311373Abstract: A method and device may be used to produce a received interference value in wireless communications. A wireless transmit/receive unit comprising a radio frequency signal measurement device may be configured to produce a value indicating a radio frequency signal, noise and interference received power. An average noise plus interference measuring device may be configured to produce a value indicating a measured average noise plus interference metric. A received signal to noise indication calculation device may be configured to calculate a received signal to noise indicator from the value indicating a radio frequency signal, noise and interference received power and the value may indicate a measured average noise plus interference metric.Type: ApplicationFiled: June 14, 2010Publication date: December 9, 2010Applicant: INTERDIGITAL COMMUNICATIONS CORPORATIONInventor: Joseph A. Kwak
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Publication number: 20100220687Abstract: A network management node may manage a network of base stations and wireless transmit/receive units (WTRUs) that operate using diverse radio access technologies. The network management node may communicate with other network management nodes to manage spectrum usage across their respective managed networks. The network management node may acts as a proxy for cellular-capable WTRUs that operate within the managed networks. The network management node may perform handovers of Peer-to-Peer (P2P) groups that operate within the managed networks. The WTRUs may include WTRUs that operate at Very High Frequency (VHF) or Ultra High Frequency (UHF) spectrum (“white space”) frequencies.Type: ApplicationFiled: February 9, 2010Publication date: September 2, 2010Applicant: INTERDIGITAL PATENT HOLDINGS, INC.Inventors: Alexander Reznik, Debashish Purkayastha, Joseph A. Kwak, Juan Carlos Zuniga, Tianming Li
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Publication number: 20100202315Abstract: A beacon signal used in data communications, such as the IEEE 802.11, is provided with data extensions. The data extensions permit additional information to be provided by the beacon signal, thereby reducing the traffic overhead of the network. The data extensions further permit handoffs and handoffs based on offset values. Periodic beacon requests are made during connection between a wireless transmit/receive unit (WTRU) and an access point (AP) on a WLAN. A Measurement Request field corresponding to a beacon request contains a measurement duration value and channel number for which the request applies. The beacon request permits a scan mode which includes “Active Scan” mode, “Passive Scan” mode and “Beacon Table” mode. In Active Scan mode, the measuring station (STA) transmits a probe request with a broadcast SSID.Type: ApplicationFiled: April 20, 2010Publication date: August 12, 2010Applicant: INTERDIGITAL TECHNOLOGY CORPORATIONInventor: Joseph A. Kwak
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Publication number: 20100150125Abstract: A received channel power indicator (RCPI) value is used as a measure of the received RF power in the selected channel, measured at the antenna connector. This parameter is a measure by the PHY sublayer of the received RF power in the channel measured over the PLCP preamble and over the entire received frame. RCPI is a monotonically increasing, logarithmic function of the received power level defined in dBm.Type: ApplicationFiled: February 23, 2010Publication date: June 17, 2010Applicant: INTERDIGITAL TECHNOLOGY CORPORATIONInventors: Joseph Kwak, Stephen G. Dick
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Patent number: 7738848Abstract: A wireless transmit/receive unit comprising a radio frequency signal measurement device that is configured to produce a value indicating a radio frequency signal, noise and interference received power at an antenna connector. An average noise plus interference measuring device is configured to produce a value indicating a measured average noise plus interference metric. A received signal to noise indication calculation device is configured to calculate a received signal to noise indicator from the value indicating a radio frequency signal, noise and interference received power at an antenna connector and the value indicates a measured average noise plus interference metric.Type: GrantFiled: January 10, 2006Date of Patent: June 15, 2010Assignee: InterDigital Technology CorporationInventor: Joseph A. Kwak
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Publication number: 20100110991Abstract: A user equipment for physical layer automatic repeat request is disclosed. The user equipment comprises a higher layer automatic repeat request (ARQ) mechanism, a physical layer transmitter, a physical layer receiver, an acknowledgment (ACK) transmitter and an adaptive modulation and control unit (AMC). A higher layer ARQ mechanism generates data for transmission. A physical layer transmitter receives the data for transmission from the higher layer ARQ mechanism, to format the received data into packets for transmission. A physical layer receiver receives and demodulates received packets and retransmission statistics. An ACK transmitter transmits a corresponding acknowledgment for a given packet at the physical layer receiver. An AMC unit adjusts a particular encoding/data modulation of each packet using collected retransmission statistics.Type: ApplicationFiled: January 7, 2010Publication date: May 6, 2010Applicant: INTERDIGITAL TECHNOLOGY CORPORATIONInventor: Joseph A. Kwak
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Patent number: 7710930Abstract: A beacon signal used in data communications, such as the IEEE 802.11, is provided with data extensions. The data extensions permit additional information to be provided by the beacon signal, thereby reducing the traffic overhead of the network. The data extensions further permit handoffs and handoffs based on offset values. Periodic beacon requests are made during connection between a wireless transmit/receive unit (WTRU) and an access point (AP) on a WLAN. A Measurement Request field corresponding to a beacon request contains a measurement duration value and channel number for which the request applies. The beacon request permits a scan mode which includes “Active Scan” mode, “Passive Scan” mode and “Beacon Table” mode. In Active Scan mode, the measuring station (STA) transmits a probe request with a broadcast SSID.Type: GrantFiled: May 14, 2004Date of Patent: May 4, 2010Assignee: InterDigital Technology CorporationInventor: Joseph A. Kwak