Patents by Inventor Mihai Enescu

Mihai Enescu 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: 10959282
    Abstract: To better support beamforming in MIMO systems such as 5G, a first match is determined between a first transmit (TX) beam group of a radio network and a first receive (RX) beam group of a user equipment (UE); and also a second match is determined between a second TX beam group of the radio network and a second RX beam group of the UE. For example these matches can come from the UE's beam report with best match information. The network configures the UE with at least a first discontinuous reception (DRX) configuration associated with the first RX beam group and with a second DRX configuration associated with the second RX beam group. In this case the first and second DRX configurations are active simultaneously for the UE, and each said beam group comprises at least one antenna or antenna port.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: March 23, 2021
    Assignee: Nokia Technologies Oy
    Inventors: Timo Koskela, Samuli Turtinen, Sami-Jukka Hakola, Mihai Enescu, Juha Pekka Karjalainen
  • Publication number: 20210076324
    Abstract: Method, apparatus, and computer program product for a user equipment in a wireless communications system to receive configuration information that has one or more TCI-states. With this configuration information, the user equipment can then determine inactivity on TCI-states. Based on that determination, the user equipment enables either a discontinuous monitoring or a cessation of monitoring on those TCI-states. Each TCI-state corresponds to a radio beam and also corresponds to an antenna panel. By reducing such monitoring, the use equipment can deactivate antenna panels corresponding to the TCI-states. The determination can be done through the use of a timer with various time thresholds based on the TCI-state. The activity being transmitted on those beam can be scheduling received by the user equipment from a network element such as a base station. The TCI-states can also be grouped and the functionality of the invention dealt with on a group basis.
    Type: Application
    Filed: May 14, 2018
    Publication date: March 11, 2021
    Inventors: Jorma Johannes KAIKKONEN, Timo c KOSKELA, Mihai ENESCU, Sami-Jukka HAKOLA, Juha Pekka KARJALAINEN, Lars DALSGAARD
  • Publication number: 20210076448
    Abstract: To better support beamforming in MIMO systems such as 5G, a first match is determined between a first transmit (TX) beam group of a radio network and a first receive (RX) beam group of a user equipment (UE); and also a second match is determined between a second TX beam group of the radio network and a second RX beam group of the UE. For example these matches can come from the UE's beam report with best match information. The network configures the UE with at least a first discontinuous reception (DRX) configuration associated with the first RX beam group and with a second DRX configuration associated with the second RX beam group. In this case the first and second DRX configurations are active simultaneously for the UE, and each said beam group comprises at least one antenna or antenna port.
    Type: Application
    Filed: August 5, 2016
    Publication date: March 11, 2021
    Inventors: Timo Koskela, Samuli Turtinen, Sami-Jukka Hakola, Mihai Enescu, Juha Pekka Karjalainen
  • Publication number: 20210075483
    Abstract: Systems, methods, apparatuses, and computer program products for non-linear precoding in radio access networks are provided. One method may include, when it is determined that a user equipment is capable of being non-linearly precoded, determining one of two non-linear precoding modes and indicating the determined non-linear precoding mode to the user equipment. One of the two non-linear precoding modes is configured to use explicit beamformed channel state information, and the other one of the two non-linear precoding modes is configured to use explicit full downlink channel state information.
    Type: Application
    Filed: February 9, 2018
    Publication date: March 11, 2021
    Inventors: Nuan Song, Eugene Visotsky, Huan Sun, Fred Vook, Mihai Enescu
  • Publication number: 20210067215
    Abstract: Systems, methods, apparatuses, and computer program products for non-linear precoding are provided. One method may include combining, by a network node, of linear and non-linear precoding, for example based on specific channel state information acquisition from at least one user equipment, and generating two types of demodulation reference signals for the concatenated linear and non-linear precoding. The method may include multiplexing, by the network node, the two types of demodulation reference signals with data. A first of the two types of demodulation reference signals may be linearly precoded with one linear precoding matrix from a first-stage linear precoder, and another one of the two types may be linearly precoded with both the first-stage linear precoder and a feedforward filter in a second-stage non-linear precoder from the concatenation of linear and nonlinear precoders.
    Type: Application
    Filed: January 18, 2018
    Publication date: March 4, 2021
    Inventors: Nuan SONG, Eugene VISOTSKY, Frederick VOOK, Mihai ENESCU
  • Publication number: 20210050900
    Abstract: A method may include receiving, from a network node, association and configuration information for a plurality of sequences, where each sequence may be associated to at least one network-node beam or beam-pair link. The method may also include performing beam measurements of beams from the network node to obtain beam measurement information. The method may further include detecting beam misalignment of the beam based on the beam measurement information. In addition, the method may include transmitting a sequence among the plurality of sequences to the network node to inform the network node of the beam misalignment, and to trigger the network node to start a beam adjustment procedure and a monitoring procedure for a configured-grant configuration. Further, the method may include, after transmitting the sequence, considering the indicated preferred beam as a new serving beam, and switching to the configured-grant configuration associated with this new serving beam.
    Type: Application
    Filed: August 3, 2020
    Publication date: February 18, 2021
    Inventors: Matha DEGHEL, Mihai ENESCU, Sami HAKOLA, Sigen YE, Klaus HUGL
  • Patent number: 10904943
    Abstract: Various communication systems may benefit from time discontinuous transmission. For example, narrow band Internet of things (NB-IoT) may benefit from having transmissions with sufficient time diversity to avoid unnecessary repetition. A method can include configuring a control channel and data channel partitioning pattern within a configured time period. The method can additionally include communicating with at least one user equipment based on the control channel and data channel partitioning pattern.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: January 26, 2021
    Assignee: NOKIA TECHNOLOGIES OY
    Inventors: Yuantao Zhang, Chunhai Yao, Yanji Zhang, Rapeepat Ratasuk, Mihai Enescu
  • Patent number: 10893544
    Abstract: A method, apparatus, and a computer-readable storage medium for beam refinement of a two-step random access channel (RACH) procedure are provided. In some implementations, the method may include receiving a plurality of synchronization signal blocks (SSBs), a plurality of channel state information-reference signals (CSI-RSs) associated with each of the plurality of synchronization signal blocks (SSBs), and random access channel (RACH) configuration data from a gNB. The method may further include transmitting a first message of the two-step random access channel (RACH) procedure to the gNB, the first message including a first portion and a second portion. The first portion includes a preamble associated with a selected channel state information-reference signal (CSI-RS) of the plurality of channel state information-reference signals (CSI-RSs) and the second portion includes data associated with the preamble, and the data transmitted using pre-configured or pre-allocated resources.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: January 12, 2021
    Assignee: Nokia Technologies Oy
    Inventors: Sami-Jukka Hakola, Emad Farag, Timo Koskela, Mihai Enescu
  • Publication number: 20200404559
    Abstract: Methods, apparatuses, and computer program products where a user equipment in a wireless communications network determines a measure of signal quality for a restricted set of beam recovery candidates, compares the measure of signal quality of contention free random access candidates reference signal in the restricted set or a subset of contention free random access candidates to a signal quality based recovery threshold, and selects the at least one candidate signal with signal quality above that threshold from a candidate beam reference signal list; where the user equipment measures a reference signal received power for contention free random access candidate beam, selects candidates above a reference signal received power threshold, determines signal quality for the selected contention free random access candidates above that threshold, and selects one candidate in response to multiple contention free random access candidates being above that threshold or the one with highest measure of signal quality.
    Type: Application
    Filed: January 11, 2019
    Publication date: December 24, 2020
    Inventors: Timo Koskela, Samuli Heikki Turtinen, Jorma Johannes Kaikkonen, Sami-Jukka Hakola, Juha Pekka Karjalainen, Mihai Enescu
  • Publication number: 20200403682
    Abstract: Systems, methods, apparatuses, and computer program products for beam failure recovery are provided. Beam failure recovery may include detecting and/or declaring, by a user equipment, UE, secondary cell, Scell, beam failure at MAC layer and e.g. determining and/or selecting CSI-RS and/or SSB indexes for transmission to a network node.
    Type: Application
    Filed: March 7, 2019
    Publication date: December 24, 2020
    Inventors: Timo Koskela, Samuli Turtinen, Jorma Kaikkonen, Mihai Enescu, Sami Hakola, Juha Karjalainen
  • Publication number: 20200389884
    Abstract: Method, apparatus, and computer program product for a CORESET beam recovery procedure and a QCL association beam recovery procedure where a condition or rule based UE initiated change of active TCI state is used. The CORESET beam recovery procedure involves a downlink reference signal corresponding to a transmission configuration indication state activated for certain CORESET being determined as a beam failure detection resource. The QCL association beam recovery procedure concerns a UE transmitting a UL request signal to require switching an active TCI state of the CORESET to a currently deactivated TCI state of the same CORESET.
    Type: Application
    Filed: January 11, 2019
    Publication date: December 10, 2020
    Inventors: Sami-Jukka HAKOLA, Timo KOSKELA, Jorma Johannes KAIKKONEN, Mihai ENESCU
  • Patent number: 10862563
    Abstract: Various communication systems may benefit from improved signaling. For example, communication systems may benefit from sending a multi-numerology reference signal that allows a receiving user equipment to perform simultaneous beamforming training, and channel estimation or channel state information acquisition. A method may include receiving at a user equipment a multi-numerology joint reference signal (610). The reference signal may include a reference signal for data channel demodulation or channel state information acquisition, and beamforming training. The method may also include performing simultaneous beamforming training and channel estimation or channel state information acquisition based on the multi-numerology joint reference signal (620).
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: December 8, 2020
    Assignee: NOKIA TECHNOLOGIES OY
    Inventors: Juha Pekka Karjalainen, Mihai Enescu, Kari Pekka Pajukoski, Sami-Jukka Hakola, Timo Koskela
  • Publication number: 20200366351
    Abstract: Systems, methods, apparatuses, and computer program products for time and frequency tracking reference signal (TRS) use in new radio (NR) are provided. One method may include defining an information element as a part of a channel state information reference signal (CSI-RS) resource set definition to indicate, to a user equipment, the channel state information reference signal (CSI-RS) resource(s) or synchronization signal block (SSB) resources used for tracking reference signal (TRS) purposes. The method may then include transmitting the information element to the user equipment to make it aware of the channel state information reference signal (CSI-RS) resources within one or more channel state information reference signal (CSI-RS) resource sets targeted for tracking reference signal (TRS) specific operation.
    Type: Application
    Filed: November 6, 2018
    Publication date: November 19, 2020
    Inventors: Juha Karjalainen, Timo Koskela, Sami Hakola, Mihai Enescu, Mikko Mäenpää, Jorma Kaikkonen
  • Patent number: 10841816
    Abstract: Systems, methods, apparatuses, and computer program products for the configuration of beam failure detection reference signals are provided.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: November 17, 2020
    Assignee: NOKIA TECHNOLOGIES OY
    Inventors: Timo Koskela, Samuli Turtinen, Dawid Koziol, Jorma Kaikkonen, Mihai Enescu, Sami Hakola
  • Publication number: 20200350971
    Abstract: There are provided measures for improved beam indication. Such measures exemplarily comprise storing at least one beam determination entry, wherein each of said at least one beam determination entry is indicative of a respective first beam and at least one respective second beam narrower than said first beam and at least partially in quasi co-location with said first beam, receiving indicator information indicative of one of said at least one beam determination entry, and selecting, for a predetermined physical channel, a transmission beam out of said first beam and said at least one second beam of said indicated one of said at least one beam determination entry based on receiving power measurement results in relation to said first beam and said at least one second beam of said indicated one of said at least one beam determination entry.
    Type: Application
    Filed: November 17, 2017
    Publication date: November 5, 2020
    Inventors: Sami-Jukka HAKOLA, Mihai ENESCU, Juha Pekka KARJALAINEN
  • Publication number: 20200336194
    Abstract: A technique includes measuring a received power for each resource of one or more resource pairs, wherein each of the one or more resource pairs includes a resource of a first resource type and a set of resources of a second resource type, wherein the resource of the first resource type is spatially quasi-colocated with the set of resources of the second resource type; selecting, based on a strongest received power, one of the one or more resource pairs for providing a joint quasi-colocation multiple-resource beam report; creating, by the user device, a joint quasi-colocation multiple-resource beam report, wherein the joint quasi-colocation multiple-resource beam report indicates a resource and a corresponding measured received power for each resource of the selected resource pair, including for a resource of the first resource type and each resource of the set of resources of the second resource type of the selected resource pair.
    Type: Application
    Filed: November 9, 2018
    Publication date: October 22, 2020
    Inventors: Juha Karjalainen, Sami Hakola, Mihai Enescu, Timo Koskela, Jorma Kaikkonen
  • Publication number: 20200267768
    Abstract: A method, apparatus, and a computer-readable storage medium for beam refinement of a two-step random access channel (RACH) procedure are provided. In some implementations, the method may include receiving a plurality of synchronization signal blocks (SSBs), a plurality of channel state information-reference signals (CSI-RSs) associated with each of the plurality of synchronization signal blocks (SSBs), and random access channel (RACH) configuration data from a gNB. The method may further include transmitting a first message of the two-step random access channel (RACH) procedure to the gNB, the first message including a first portion and a second portion. The first portion includes a preamble associated with a selected channel state information-reference signal (CSI-RS) of the plurality of channel state information-reference signals (CSI-RSs) and the second portion includes data associated with the preamble, and the data transmitted using pre-configured or pre-allocated resources.
    Type: Application
    Filed: February 14, 2019
    Publication date: August 20, 2020
    Inventors: Sami-Jukka Hakola, Emad Farag, Timo Koskela, Mihai Enescu
  • Patent number: 10750465
    Abstract: In accordance with an example embodiment of the present invention, methods and apparatus are provided to allow exchange of synchronization sequences in a manner substantially agnostic of a configuration of the transmitter by provisioning of an in indication whether or not synchronization sequences may be combined with other synchronization sequences.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: August 18, 2020
    Assignee: Nokia Technologies Oy
    Inventors: Sami-Jukka Hakola, Jorma Johannes Kaikkonen, Mihai Enescu, Lars Dalsgaard, Timo Koskela
  • Patent number: 10721695
    Abstract: A method and apparatus may include configuring, by a base station, a synchronization signal. The synchronization signal may be aligned with a sub carrier spacing grid of a radio access technology. The synchronization signal may be positioned at a frequency location that is the same or about the same as a frequency step of a channel raster. The synchronization signal may be transmitted to a user equipment so that the center of the synchronization signal is transmitted with a frequency offset with respect to the center of the radio-access technology bandwidth.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: July 21, 2020
    Assignee: Nokia Technologies Oy
    Inventors: Gunter Wolff, Mikko Kokkonen, Hartmut Wilhelm, Mihai Enescu
  • Patent number: 10708802
    Abstract: In accordance with an example embodiment, there is disclosed a method comprising: receiving, by a user device, from at least one base station, at least two CSI reporting configurations for at least one of periodic and semi-persistent CSI reporting; determining that at least two CSI reports are to be reported for the at least two CSI reporting configurations in a slot; determining whether PUCCH resources for the at least two CSI reporting configurations are overlapping in time on a carrier; and ranking different CSI reports associated with each of the at least two CSI reporting configurations in a priority order in response to a determination that at least two PUCCH resources associated with the at least two CSI reporting configurations overlap in time at least partially.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: July 7, 2020
    Assignee: Nokia Technologies Oy
    Inventors: Timo Lunttila, Mihai Enescu, Esa Tiirola, Kari Hooli