Patents by Inventor Eldad Zeira
Eldad Zeira 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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Publication number: 20230328658Abstract: A method and apparatus for power control for distributed wireless communication is disclosed including one or more power control loops associated with a wireless transmit/receive unit (WTRU). Each power control loop may include open loop power control or closed loop power control. A multi-phase power control method is also disclosed with each phase representing a different time interval and a WTRU sends transmissions at different power levels to different set of node-Bs or relay stations during different phases to optimize communications.Type: ApplicationFiled: April 11, 2023Publication date: October 12, 2023Applicant: INTERDIGITAL PATENT HOLDINGS, INC.Inventors: Zinan Lin, Sung-Hyuk Shin, Prabhakar R. Chitrapu, Philip Pietraski, Mihaela Beluri, Gregg A. Charlton, Eldad Zeira, Alexander Reznik
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METHOD AND APPARATUS TO ALLOCATE RADIO RESOURCES FOR TRANSMITTING A MESSAGE PART IN AN ENHANCED RACH
Publication number: 20220312396Abstract: A method and apparatus for allocating resources to a wireless transmit receive unit (WTRU) includes the WTRU transmitting a signature sequence to a Node B, receiving an acknowledge signal from the Node B, and determining a default resource index. The resource index is associated with enhanced dedicated channel (E-DCH) parameters.Type: ApplicationFiled: June 15, 2022Publication date: September 29, 2022Applicant: InterDigital Patent Holdings, Inc.Inventors: Benoit Pelletier, Eldad Zeira, Paul Marinier, Christopher R. Cave, Rocco Di Girolamo -
Method and apparatus to allocate radio resources for transmitting a message part in an enhanced RACH
Patent number: 11412504Abstract: A method and apparatus for allocating resources to a wireless transmit receive unit (WTRU) includes the WTRU transmitting a signature sequence to a Node B, receiving an acknowledge signal from the Node B, and determining a default resource index. The resource index is associated with enhanced dedicated channel (E-DCH) parameters.Type: GrantFiled: April 13, 2020Date of Patent: August 9, 2022Assignee: InterDigital Patent Holdings, Inc.Inventors: Benoit Pelletier, Eldad Zeira, Paul Marinier, Christopher R. Cave, Rocco Di Girolamo -
Publication number: 20220224409Abstract: Methods, devices, and systems are disclosed for multi-hop relays that may be implemented by advertising first relaying capabilities and a first number of hops to reach a remote wireless transmit/receive unit (WTRU), receiving second relaying capabilities and a second number of hops to reach the remote WTRU from a selected relay WTRU, updating a relay capabilities table based on the second relaying capabilities and the second number of hops, receiving a packet comprising a payload, the packet having a traffic type and further comprising a maximum number of hops, selecting the selected relay WTRU based on the traffic type, the maximum number of hops, and the relay capabilities table, generating a first updated packet comprising the payload, the traffic type and a first updated number of hops that is one less than the maximum number of hops, and transmitting the first updated packet to the selected relay WTRU.Type: ApplicationFiled: April 23, 2020Publication date: July 14, 2022Applicant: IDAC HOLDINGS, INC.Inventors: Michelle Perras, Saad Ahmad, Eldad Zeira
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METHOD AND APPARATUS TO ALLOCATE RADIO RESOURCES FOR TRANSMITTING A MESSAGE PART IN AN ENHANCED RACH
Publication number: 20200245310Abstract: A method and apparatus for allocating resources to a wireless transmit receive unit (WTRU) includes the WTRU transmitting a signature sequence to a Node B, receiving an acknowledge signal from the Node B, and determining a default resource index. The resource index is associated with enhanced dedicated channel (E-DCH) parameters.Type: ApplicationFiled: April 13, 2020Publication date: July 30, 2020Inventors: Benoit Pelletier, Eldad Zeira, Paul Marinier, Christopher R. Cave, Rocco Digirolamo -
Patent number: 9456449Abstract: A method for reporting channel quality from a user equipment (UE) to a base station is described. The UE derives a channel quality for each of a plurality of downlink resources. The UE transmits channel quality reports in a pattern of time intervals by rotating through the plurality of downlink resources in different time intervals of the pattern, wherein a channel quality report is not transmitted by the UE in each time interval of a frame.Type: GrantFiled: October 16, 2013Date of Patent: September 27, 2016Assignee: INTERDIGITAL TECHNOLOGY CORPORATIONInventors: Stephen E. Terry, Stephen G. Dick, James M. Miller, Eldad Zeira, Ariela Zeira
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Patent number: 9380588Abstract: The invention includes several embodiments for slot assignment in code division multiple access communication systems. One embodiment for fixed beams assigns slots by first detecting a beam having the best received quality and selected the best slot from that beam. Another fixed beam embodiment determines the best slot or slots in a number of beams and determines the overall best beam/slot combination. Another fixed beam embodiment uses a modified interference factor. One embodiment for the uplink using adaptive arrays using a spatial analysis stage followed by a transmission power level estimation stage. An overall interference level associated with each slot is determined and a slot having the best overall quality is determined. Another embodiment for the downlink uses the spatial analysis and slot assignment of the uplink for the downlink. Another embodiment for the downlink uses a spatial and transmission power level estimation stages.Type: GrantFiled: December 1, 2011Date of Patent: June 28, 2016Assignee: InterDigital Technology CorporationInventor: Eldad Zeira
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Patent number: 9247513Abstract: A method and apparatus of time synchronizing a plurality of base stations in a wireless communication system includes receiving an indication of a timing associated with a synch burst, where the synch burst is from a mastercell having a better time synchronization quality than other cells and measured by at least one cell other than the mastercell. A request is sent to a wireless transmit/receive unit (WTRU) for a measurement of a base station time of arrival (BSTOA) value of the at least one cell other than the mastercell. The BSTOA value from the WTRU is received and a timing adjustment is sent to the at least one cell other than the mastercell.Type: GrantFiled: March 26, 2013Date of Patent: January 26, 2016Assignee: InterDigital Technology CorporationInventors: Stephen G. Dick, Eldad Zeira
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Method and system for improving responsiveness in exchanging frames in a wireless local area network
Patent number: 8830846Abstract: A method and system for improving responsiveness in exchanging management and control frames in a wireless local area network are disclosed. An initiator sends a frame (action, management, control or data frame) to a responder. Upon correctly receiving the frame, the responder sends a response frame to the initiator instead of directly sending an acknowledgement (ACK) packet. The responder preferably accesses the wireless medium to send the response frame in a short inter-frame spacing (SIFS). With this scheme, a long delay associated with having to contend for the wireless medium to send the response frame is avoided and therefore, the responsiveness and timeliness of the feedback mechanism is significantly enhanced. The response frame may be piggybacked on or aggregated with another packet.Type: GrantFiled: March 29, 2006Date of Patent: September 9, 2014Assignee: InterDigital Technology CorporationInventors: Sudheer A. Grandhi, Arty Chandra, Eldad Zeira, Mohammed Sammour -
Publication number: 20140204827Abstract: A method and apparatus may be used to broadcast a first beacon and a second beacon in a beacon interval. The first beacon may include an indicator that indicates whether a second beacon will be transmitted within the beacon interval. The first beacon may be a legacy beacon and the second beacon may be a non-legacy beacon. A legacy beacon may be decodable by any station (STA) and a non-legacy beacon may be decodable only by non-legacy STAs.Type: ApplicationFiled: January 23, 2014Publication date: July 24, 2014Applicant: InterDigital Technology CorporationInventors: Sudheer A. Grandhi, Arty Chandra, Joseph S. Levy, Kamel M. Shaheen, Stephen E. Terry, Eldad Zeira
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Patent number: 8675612Abstract: A method for reporting channel quality from a user equipment (UE) to a base station is described. The UE derives a channel quality for each of a plurality of downlink resources. The UE transmits channel quality reports in a pattern of time intervals by rotating through the plurality of downlink resources in different time intervals of the pattern, wherein a channel quality report is not transmitted by the UE in each time interval of a frame.Type: GrantFiled: April 23, 2012Date of Patent: March 18, 2014Assignee: InterDigital Technology CorporationInventors: Stephen E. Terry, Stephen G. Dick, James M. Miller, Eldad Zeira, Ariela Zeira
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Publication number: 20140043996Abstract: A method for reporting channel quality from a user equipment (UE) to a base station is described. The UE derives a channel quality for each of a plurality of downlink resources. The UE transmits channel quality reports in a pattern of time intervals by rotating through the plurality of downlink resources in different time intervals of the pattern, wherein a channel quality report is not transmitted by the UE in each time interval of a frame.Type: ApplicationFiled: October 16, 2013Publication date: February 13, 2014Inventors: Stephen E. Terry, Stephen G. Dick, James M. Miller, Eldad Zeira, Ariela Zeira
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Patent number: 8649322Abstract: A method and system for controlling access to a wireless communication medium are disclosed. The system includes at least one access point (AP) and at least one station (STA). The AP defines a superframe for transmission of data in a time domain having a high throughput (HT) period which includes at least one scheduled resource allocation (SRA) and at least one management SRA (MSRA). The AP broadcasts an extended beacon (EB) including information about the SRA and MSRA. The SRA is defined for transmitting traffic data between the AP and the STA, and the MSRA is defined for transmitting management and control data between the AP and the STA. The system reduces station battery consumption, supports higher throughput for non-real time (NRT) traffic and is more efficient for real time (RT) traffic while maintaining full compatibility.Type: GrantFiled: August 8, 2005Date of Patent: February 11, 2014Assignee: InterDigital Technology CorporationInventors: Sudheer A. Grandhi, Arty Chandra, Joseph S. Levy, Kamel M. Shaheen, Stephen E. Terry, Eldad Zeira
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Patent number: 8559401Abstract: A method for downlink power control for use in a spread spectrum time division communication system having time slots for communication, implemented in a user equipment, includes receiving data in a command per coded composite transport channel (CCTrCH) transmitted over a plurality of time slots. An interference power for each time slot of the plurality of time slots is measured and a single power command for the entire CCTrCH is transmitted in response to a signal to interference ratio of the received CCTrCH and the measured interference power measurement for each time slot. A subsequent data is received in the CCTrCH communication having a transmission power level for each downlink communication time slot set individually in response to the interference power measurement for that time slot and the single power command for the entire CCTrCH.Type: GrantFiled: October 24, 2011Date of Patent: October 15, 2013Assignee: InterDigital Technology CorporationInventors: Eldad Zeira, Stephen E. Terry, Ariela Zeira
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Patent number: 8559375Abstract: A method and apparatus may be used for peer-to-peer communications. A first non-access point (non-AP) station (STA) may receive a message for establishing a direct communication link from a second non-AP STA. The message may include a service priority. The first non-AP STA may transmit another message in response to receiving the message from the second non-AP STA, and communicate directly with the second non-AP STA. The system may be an Ad hoc network comprising a plurality of STAs without an access point (AP) where each STA maintains a database of one-hop and two-hop STAs, and establishes a direct link to other STAs after informing neighboring STAs of an intention to establish a direct communication link.Type: GrantFiled: April 12, 2012Date of Patent: October 15, 2013Assignee: InterDigital Technology CorporationInventors: Arty Chandra, Joseph S. Levy, Sudheer A. Grandhi, Eldad Zeira
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Patent number: 8532210Abstract: The present invention is related to a method and apparatus for implementing space frequency block coding (SFBC) in an orthogonal frequency division multiplexing (OFDM) wireless communication system. The present invention is applicable to both a closed loop mode and an open loop mode. In the closed loop mode, power loading and eigen-beamforming are performed based on channel state information (CSI). A channel coded data stream is multiplexed into two or more data streams. Power loading is performed based on the CSI on each of the multiplexed data streams. SFBC encoding is performed on the data streams for each of the paired subcarriers. Then, eigen-beamforming is performed based on the CSI to distribute eigenbeams to multiple transmit antennas. The power loading may be performed on two or more SFBC encoding blocks or on each eigenmodes. Additionally, the power loading may be performed across subcarriers or subcarrier groups for weak eigenmodes.Type: GrantFiled: January 27, 2009Date of Patent: September 10, 2013Assignee: InterDigital Technology CorporationInventors: Jaeyoung Kwak, Robert Lind Olesen, Aykut Bultan, Eldad Zeira, Chang-Soo Koo, Fatih Ozluturk, Yuejin Huang, Kalpendu R. Pasad
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Publication number: 20130229983Abstract: A method and apparatus of time synchronizing a plurality of base stations in a wireless communication system includes receiving an indication of a timing associated with a synch burst, where the synch burst is from a mastercell having a better time synchronization quality than other cells and measured by at least one cell other than the mastercell. A request is sent to a wireless transmit/receive unit (WTRU) for a measurement of a base station time of arrival (BSTOA) value of the at least one cell other than the mastercell. The BSTOA value from the WTRU is received and a timing adjustment is sent to the at least one cell other than the mastercell.Type: ApplicationFiled: March 26, 2013Publication date: September 5, 2013Applicant: InterDigital Technology CorporationInventors: Stephen G. Dick, Eldad Zeira
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Patent number: 8483200Abstract: A method and apparatus for selecting an antenna mapping in multiple-in/multiple-out (MIMO) enabled wireless communication networks. A candidate set of currently available antenna mappings is determined based upon measured long term channel conditions. An antenna mapping is selected from the candidate set, and the mapping is calibrated with a selected antenna mapping of a receiving wireless transmit/receive unit (WTRU). When the selected mappings are calibrated, packet data transmission begins. In an alternative embodiment, a calibration training frame (CTF) is used to calibrate multiple antenna mappings simultaneously or sequentially. Also disclosed are physical layer and medium access control layer frame formats for implementing antenna mapping selection according to the invention.Type: GrantFiled: April 6, 2006Date of Patent: July 9, 2013Assignee: Interdigital Technology CorporationInventors: Inhyok Cha, Eldad Zeira, Keith Richard Baldwin
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Patent number: 8416904Abstract: A method and apparatus of time synchronizing a plurality of base stations in a wireless communication system includes receiving an indication of a timing associated with a synch burst, where the synch burst is from a mastercell having a better time synchronization quality than other cells and measured by at least one cell other than the mastercell. A request is sent to a wireless transmit/receive unit (WTRU) for a measurement of a base station time of arrival (BSTOA) value of the at least one cell other than the mastercell. The BSTOA value from the WTRU is received and a timing adjustment is sent to the at least one cell other than the mastercell.Type: GrantFiled: April 11, 2011Date of Patent: April 9, 2013Assignee: InterDigital Technology CorporationInventors: Stephen G. Dick, Eldad Zeira
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Publication number: 20120275385Abstract: One out of sixteen preamble signatures is selected. A code is produced based on the selected preamble signature. The produced code is phase rotated to produce a processed preamble signature signal. The processed preamble signature signal is used in processing the CDMA RACH signal and the CDMA RACH signal is used to access a CDMA system.Type: ApplicationFiled: July 9, 2012Publication date: November 1, 2012Applicant: INTERDIGITAL TECHNOLOGY CORPORATIONInventors: Stephen G. Dick, Charles Dennean, Eldad Zeira, Jung-Lin Pan, Sung-Hyuk Shin, Ariela Zeira