Patents by Inventor Christian Ibars Casas

Christian Ibars Casas 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: 11817922
    Abstract: Co-existence between an Orthogonal Time Frequency Space (OTFS) modulation system and a Long Term Evolution (LTE) system is achieved by generating a number of transmission beams for a first group of user equipment operating using LTE, and a second group of user equipment operating using the OTFS protocol, and transmitting a first group of data packets formatted according to the LTE protocol to the first group of user equipment and a second group of data packets formatted according to the OTFS protocol to the second group of user equipment. The transmissions are performed by precoding and modulating the first group of data packets according to an LTE modulation scheme, and precoding and modulating the second group of data packets according to an OTFS modulation scheme.
    Type: Grant
    Filed: August 5, 2022
    Date of Patent: November 14, 2023
    Assignee: Cohere Technologies, Inc.
    Inventors: Christian Ibars Casas, James Delfeld, Yoav Hebron, Shachar Kons
  • Patent number: 11723002
    Abstract: Technology for a user equipment (UE) to perform reduced transmission time interval (TTI) data transmission within a wireless communication network is disclosed. The UE can process a process, for transmission to an eNodeB, control information within a short transmission time interval (TTI) over a short TTI resource block (RB) set within a short physical uplink control channel (S-PUCCH), wherein the short TTI is shorter in time than a TTI that has a duration of at least one (1) millisecond, and wherein the S-PUCCH is a subset of resources available for a short physical uplink shared channel (S-PUSCH) and the S-PUSCH is a subset of resources available for a legacy PUSCH transmission; and process, for transmission to the eNodeB, data within the short TTI over the short TTI RB set within the S-PUSCH.
    Type: Grant
    Filed: August 15, 2022
    Date of Patent: August 8, 2023
    Assignee: APPLE INC.
    Inventors: Christian Ibars Casas, Seunghee Han, Hong He, Alexei Davydov
  • Patent number: 11632791
    Abstract: Methods, systems and devices for providing transmission resources that achieve transmission diversity while reducing pilot signal overhead are described. An exemplary wireless communication method may be implemented in a wireless communication system in which transmission resources are allocated on a per physical resource block (PRB) basis, where a PRB corresponds to a two dimensional resource pattern comprising a first number of subcarriers along a frequency dimension and a second number time slots along a time dimension. The method includes logically dividing subcarriers in each PRB into an integer number of sub-groups of sub-carriers, wherein the integer number is greater than one, allocating, to a transmission, transmission resources corresponding to one or more of the sub-groups of subcarriers, performing the transmission in the wireless communication system.
    Type: Grant
    Filed: April 29, 2022
    Date of Patent: April 18, 2023
    Assignee: Cohere Technologies, Inc.
    Inventors: Yoav Hebron, Christian Ibars Casas, Ronny Hadani, Shachar Kons
  • Publication number: 20230081573
    Abstract: Latency reduction techniques for radio access networks are described. In various embodiments, a reduced transmission time interval (rTTI) may be implemented in order to reduce air interface latency in a radio access network. In some embodiments, an rTTI block may be defined, and some operations may be performed in rTTI block-wise fashion in order to reduce the marginal overhead associated with implementation of the rTTI. In various embodiments in which an rTTI is implemented, DM-RS granularity may be improved by use of techniques that enable data and reference signals to be multiplexed within a same OFDM symbol. In some embodiments, a current transmission time interval (TTI) may be maintained, and latency reduction may be achieved via the use of novel techniques for one or more of code block (CB) segmentation, uplink (UL) resource element (RE) mapping, and HARQ cycle timing. Other embodiments are described and claimed.
    Type: Application
    Filed: November 11, 2022
    Publication date: March 16, 2023
    Inventors: Christian Ibars Casas, Seunghee Han
  • Patent number: 11528719
    Abstract: Latency reduction techniques for radio access networks are described. In various embodiments, a reduced transmission time interval (rTTI) may be implemented in order to reduce air interface latency in a radio access network. In some embodiments, an rTTI block may be defined, and some operations may be performed in rTTI block-wise fashion in order to reduce the marginal overhead associated with implementation of the rTTI. In various embodiments in which an rTTI is implemented, DM-RS granularity may be improved by use of techniques that enable data and reference signals to be multiplexed within a same OFDM symbol. In some embodiments, a current transmission time interval (TTI) may be maintained, and latency reduction may be achieved via the use of novel techniques for one or more of code block (CB) segmentation, uplink (UL) resource element (RE) mapping and HARQ cycle timing. Other embodiments are described and claimed.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: December 13, 2022
    Assignee: Apple Inc.
    Inventors: Christian Ibars Casas, Seunghee Han
  • Publication number: 20220394709
    Abstract: Technology for a user equipment (UE) to perform reduced transmission time interval (TTI) data transmission within a wireless communication network is disclosed. The UE can process a process, for transmission to an eNodeB, control information within a short transmission time interval (TTI) over a short TTI resource block (RB) set within a short physical uplink control channel (S-PUCCH), wherein the short TTI is shorter in time than a TTI that has a duration of at least one (1) millisecond, and wherein the S-PUCCH is a subset of resources available for a short physical uplink shared channel (S-PUSCH) and the S-PUSCH is a subset of resources available for a legacy PUSCH transmission; and process, for transmission to the eNodeB, data within the short TTI over the short TTI RB set within the S-PUSCH.
    Type: Application
    Filed: August 15, 2022
    Publication date: December 8, 2022
    Inventors: Christian Ibars Casas, Seunghee Han, Hong He, Alexei Davydov
  • Publication number: 20220385509
    Abstract: Co-existence between an Orthogonal Time Frequency Space (OTFS) modulation system and a Long Term Evolution (LTE) system is achieved by generating a number of transmission beams for a first group of user equipment operating using LTE, and a second group of user equipment operating using the OTFS protocol, and transmitting a first group of data packets formatted according to the LTE protocol to the first group of user equipment and a second group of data packets formatted according to the OTFS protocol to the second group of user equipment. The transmissions are performed by precoding and modulating the first group of data packets according to an LTE modulation scheme, and precoding and modulating the second group of data packets according to an OTFS modulation scheme.
    Type: Application
    Filed: August 5, 2022
    Publication date: December 1, 2022
    Inventors: Christian IBARS CASAS, James DELFELD, Yoav HEBRON, Shachar KONS
  • Patent number: 11418300
    Abstract: Co-existence between an Orthogonal Time Frequency Space (OTFS) modulation system and a Long Term Evolution (LTE) system is achieved by generating a number of transmission beams for a first group of user equipment operating using LTE, and a second group of user equipment operating using the OTFS protocol, and transmitting a first group of data packets formatted according to the LTE protocol to the first group of user equipment and a second group of data packets formatted according to the OTFS protocol to the second group of user equipment. The transmissions are performed by precoding and modulating the first group of data packets according to an LTE modulation scheme, and precoding and modulating the second group of data packets according to an OTFS modulation scheme.
    Type: Grant
    Filed: June 12, 2019
    Date of Patent: August 16, 2022
    Assignee: Cohere Technologies, Inc.
    Inventors: Christian Ibars Casas, James Delfeld, Yoav Hebron, Shachar Kons
  • Patent number: 11419110
    Abstract: Technology for a user equipment (UE) to perform reduced transmission time interval (TTI) data transmission within a wireless communication network is disclosed. The UE can process a process, for transmission to an eNodeB, control information within a short transmission time interval (TTI) over a short resource block (RB) set within a short physical uplink control channel (S-PUCCH), wherein the short TTI is shorter in time than a TTI that has a duration of at least one (1) millisecond, and wherein the S-PUCCH is a subset of resources available for a short physical uplink shared channel (S-PUSCH) and the S-PUSCH is a subset of resources available for a legacy PUSCH transmission; and process, for transmission to the eNodeB, data within the short TTI over the short TTI RB set within the S-PUSCH.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: August 16, 2022
    Assignee: APPLE INC.
    Inventors: Christian Ibars Casas, Seunghee Han, Hong He, Alexei Davydov
  • Patent number: 11324008
    Abstract: Methods, systems and devices for providing transmission resources that achieve transmission diversity while reducing pilot signal overhead are described. An exemplary wireless communication method may be implemented in a wireless communication system in which transmission resources are allocated on a per physical resource block (PRB) basis, where a PRB corresponds to a two dimensional resource pattern comprising a first number of subcarriers along a frequency dimension and a second number time slots along a time dimension. The method includes logically dividing subcarriers in each PRB into an integer number of sub-groups of subcarriers, wherein the integer number is greater than one, allocating, to a transmission, transmission resources corresponding to one or more of the sub-groups of subcarriers, performing the transmission in the wireless communication system.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: May 3, 2022
    Assignee: Cohere Technologies, Inc.
    Inventors: Yoav Hebron, Christian Ibars Casas, Ronny Hadani, Shachar Kons
  • Patent number: 11310000
    Abstract: A wireless communication method for transmitting wireless signals from a transmitter includes dividing bits of the transport block into a number of code blocks, wherein each code block corresponds to a bit-level of a multi-level modulation scheme used for transmission, and wherein a size of each code block is inversely proportional to a corresponding coding rate used for coding the code block.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: April 19, 2022
    Assignee: Cohere Technologies, Inc.
    Inventors: Christian Ibars Casas, Shachar Kons, Ronny Hadani
  • Patent number: 11246161
    Abstract: Systems, apparatus, user equipment (UE), evolved node B (eNB), computer readable media, and methods are described for multi-carrier listen before talk operations. In various embodiments, a transmitting device may assign one or more primary carriers to perform listen before talk (LBT) operations, with non-primary carriers performing a channel sensing operation at the end of the LBT operations of at least one primary channel. In various embodiments, the LBT operations at the primary carriers may use a shared random countdown number or an independent random countdown.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: February 8, 2022
    Assignee: Intel Corporation
    Inventors: Abhijeet Bhorkar, Hwan-Joon Kwon, Christian Ibars Casas
  • Publication number: 20210288765
    Abstract: A wireless communication method for transmitting wireless signals from a transmitter includes dividing bits of the transport block into a number of code blocks, wherein each code block corresponds to a bit-level of a multi-level modulation scheme used for transmission, and wherein a size of each code block is inversely proportional to a corresponding coding rate used for coding the code block.
    Type: Application
    Filed: September 29, 2017
    Publication date: September 16, 2021
    Inventors: Christian Ibars Casas, Shachar Kons, Ronny Hadani
  • Patent number: 11102814
    Abstract: Described are mechanisms for eNB support of DRS in LAA, in which DRS is transmitted at one or more DRS occasions within a DMTC window, subject to LBT. In some embodiments, an eNB may include hardware processing circuitry comprising an antenna port, a first circuitry, a second circuitry, and a third circuitry. The first circuitry may be operable to determine a DMTC window of a wireless communication channel. The second circuitry may be operable to initiate one or more CCA checks through an antenna coupled to the antenna port prior to a DRS occasion within a DMTC time window. The third circuitry may be operable to initiate a DRS transmission through the antenna within the DMTC window upon a CCA check of the set of one or more CCA checks sensing that the wireless communication channel is idle. Also described are mechanisms for proactive support of DRS in LAA.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: August 24, 2021
    Assignee: Apple Inc.
    Inventors: Abhijeet Bhorkar, Hwan-Joon Kwon, Christian Ibars Casas, Seunghee Han, Qiaoyang Ye
  • Publication number: 20210250138
    Abstract: Co-existence between an Orthogonal Time Frequency Space (OTFS) modulation system and a Long Term Evolution (LTE) system is achieved by generating a number of transmission beams for a first group of user equipment operating using LTE, and a second group of user equipment operating using the OTFS protocol, and transmitting a first group of data packets formatted according to the LTE protocol to the first group of user equipment and a second group of data packets formatted according to the OTFS protocol to the second group of user equipment. The transmissions are performed by precoding and modulating the first group of data packets according to an LTE modulation scheme, and precoding and modulating the second group of data packets according to an OTFS modulation scheme.
    Type: Application
    Filed: June 12, 2019
    Publication date: August 12, 2021
    Inventors: Christian IBARS CASAS, James DELFELD, Yoav HEBRON, Shachar KONS
  • Publication number: 20210184795
    Abstract: Apparatuses, systems, and techniques to perform signal processing operations in a fifth generation (5G) new radio (NR) network using one or more parallel processing units (PPUs). In at least one embodiment, one or more PPUs implement signal processing in a baseband unit (BBU) performing 5G NR physical layer operations in a communication network.
    Type: Application
    Filed: December 16, 2019
    Publication date: June 17, 2021
    Inventors: Christian Ibars Casas, Harsha Deepak Banuli Nanje Gowda, Jeremy David Furtek, James Hansen Delfeld, Andrea Miele, Vikrama Ditya
  • Publication number: 20210119848
    Abstract: Apparatuses, systems, and techniques to cause information received from a plurality of fifth-generation (5G) new radio (NR) antennas to be decoded in parallel. In at least one embodiment, the information includes data that has been processed by soft demapping, and decoding the information includes layer demapping, descrambling, and de-rate-matching the data in parallel.
    Type: Application
    Filed: October 22, 2019
    Publication date: April 22, 2021
    Inventors: Christian Ibars Casas, Andrea Miele, Harsha Deepak Banuli Nanje Gowda
  • Patent number: 10965348
    Abstract: A method of reducing peak to average power ratio of uplink transmission includes, assigning a slice of transmission resource to uplink transmission from a user equipment, where all resource elements in the slice have a same Doppler value, mapping data to the slice, performing orthogonal time frequency space transformation to generate time-frequency domain data and processing the time-frequency domain data for transmission.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: March 30, 2021
    Inventors: James Delfeld, Christian Ibars Casas, Yoav Hebron, Ronny Hadani, Shlomo Rakib
  • Patent number: 10939423
    Abstract: Techniques for detecting puncturing of a first PDSCH (physical downlink shared channel) associated with a UE (user equipment) by a second PDSCH with a shorter TTI (transmission time interval) are discussed. A base station (e.g., Evolved NodeB or eNB) can configure the UE for potential puncturing and/or parameter(s) of the second PDSCH. The UE can detect puncturing of the first PDSCH based on the configuration, and can discard punctured symbols to mitigate interference from the second PDSCH.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: March 2, 2021
    Assignee: Apple Inc.
    Inventors: Alexei Davydov, Seunghee Han, Victor Sergeev, Hong He, Christian Ibars Casas
  • Patent number: 10873418
    Abstract: A wireless communication method for transmitting wireless signals from a transmitter includes receiving information bits for transmission, segmenting the information bits into a stream of segments, applying a corresponding forward error correction (FEC) code and an interleaver to each of the stream of segments and combining outputs of the interleaving to generate a stream of symbols, processing the stream of symbols to generate a waveform, and transmitting the waveform over a communication medium.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: December 22, 2020
    Assignee: Cohere Technologies, Inc.
    Inventors: Shachar Kons, Ronny Hadani, Christian Ibars Casas