Patents by Inventor Hyoung-Ju Ji

Hyoung-Ju Ji 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).

  • METHOD AND DEVICE FOR SENDING AND RECEIVING A REFERENCE SIGNAL
    Publication number: 20160043845
    Abstract: The present invention relates to a method for sending and receiving a reference signal for a backhaul subframe in a wireless communication system in which a relay is present and also to a device therefor, constituted in such a way that common reference signals for a plurality of receiving devices and reference signals dedicated to separate receiving devices are allocated dispersed in a subframe, and the common reference signals and the dedicated reference signals are generated and are sent and received via the subframe. The present invention can improve the channel estimation performance for subframes in a wireless communication system. In this way, communications efficiency in wireless communication systems can be improved.
    Type: Application
    Filed: August 10, 2015
    Publication date: February 11, 2016
    Inventors: Hyoung-Ju Ji, Joon-Young Cho, Ju-Ho Lee
  • METHOD AND APPARATUS FOR ALLOCATING A CONTROL CHANNEL RESOURCE OF A RELAY NODE IN A BACKHAUL SUBFRAME
    Publication number: 20160043851
    Abstract: A method and apparatus for configuring a control channel between a first transceiver and a second transceiver in a communication system are provided. The method includes generating, by the first transceiver, a signaling message including information for the control channel; transmitting, by the first transceiver, the signaling message including information for the control channel to the second transceiver; generating, by the first transceiver, the control channel based on the information for the control channel; and transmitting, by the first transceiver, the generated control channel to the second transceiver, wherein the information for the control channel includes resource assignment information, reference signal information, and information related to at least one of a localized type and a distributed type.
    Type: Application
    Filed: September 18, 2015
    Publication date: February 11, 2016
    Inventors: Hyoung Ju JI, Joon Young CHO
  • APPARATUS AND METHOD FOR TRANSMITTING/RECEIVING DOWNLINK DATA CHANNEL SIGNAL TRANSMISSION INFORMATION IN CELLULAR RADIO COMMUNICATION SYSTEM USING COOPERATIVE MULTI-POINT SCHEME
    Publication number: 20160029353
    Abstract: An apparatus and a method for transmitting/receiving downlink data channel signal transmission information in a cellular radio communication system using a Cooperative Multi-Point (CoMP) scheme are provided. In the downlink data channel signal transmission information transmission method, a Base Station (BS) transmits downlink data channel signal transmission information including information related to Resource Elements (REs) scheduled for a downlink data channel signal transmission to a User Equipment (UE), and transmits downlink data channel signal non-transmission information including information related to REs through which a downlink data channel signal is not transmitted among the REs scheduled for the downlink data channel signal transmission to the UE.
    Type: Application
    Filed: October 2, 2015
    Publication date: January 28, 2016
    Inventors: Hyo-Jin LEE, Youn-Sun KIM, Ki-Il KIM, Hyoung-Ju JI, Joon-Young CHO, Ju-Ho LEE
  • METHOD AND APPARATUS FOR ALLOCATING A CONTROL CHANNEL RESOURCE OF A RELAY NODE IN A BACKHAUL SUBFRAME
    Publication number: 20160013910
    Abstract: A method and apparatus for configuring a control channel between a first transceiver and a second transceiver in a communication system are provided. The method includes generating, by the first transceiver, a signaling message including information for the control channel; transmitting, by the first transceiver, the signaling message including information for the control channel to the second transceiver; generating, by the first transceiver, the control channel based on the information for the control channel; and transmitting, by the first transceiver, the generated control channel to the second transceiver, wherein the information for the control channel includes resource assignment information, and information regarding that if interleaving is applied.
    Type: Application
    Filed: September 18, 2015
    Publication date: January 14, 2016
    Inventors: Hyoung Ju JI, Joon Young CHO
  • ADAPTING A NUMBER OF AGGREGATION LEVELS FOR CONTORL CHANNEL ELEMENTS
    Publication number: 20160014738
    Abstract: Methods and apparatuses are provided for a User Equipment (UE) to receive control information. A Downlink Control Information (DCI) format to be monitored is identified. An aggregation level and a number of Enhanced Physical Downlink Control Channel (EPDCCH) candidates are identified based on the identified DCI format. Control information is received based on the identified aggregation level and the identified number of EPDCCH candidates.
    Type: Application
    Filed: September 21, 2015
    Publication date: January 14, 2016
    Inventors: Aris PAPASAKELLARIOU, Hyoung-Ju JI
  • ADAPTING A NUMBER OF AGGREGATION LEVELS FOR CONTROL CHANNEL ELEMENTS
    Publication number: 20160014737
    Abstract: Methods and apparatuses are provided for a User Equipment (UE) to receive control information. A downlink bandwidth is identified. Aggregation level is identified based on the identified downlink bandwidth. Control information is received based on the identified aggregation level.
    Type: Application
    Filed: September 21, 2015
    Publication date: January 14, 2016
    Inventors: Aris PAPASAKELLARIOU, Hyoung-Ju JI
  • ADAPTING A NUMBER OF AGGREGATION LEVELS FOR CONTORL CHANNEL ELEMENTS
    Publication number: 20160014736
    Abstract: Methods and apparatuses are provided for a User Equipment (UE) to receive control information. A Downlink Control Information (DCI) format to be monitored is identified. A number of Enhanced Physical Downlink Control Channel (EPDCCH) candidates are identified based on the identified DCI format. Control information is received based on the identified number of EPDCCH candidates.
    Type: Application
    Filed: September 21, 2015
    Publication date: January 14, 2016
    Inventors: Aris PAPASAKELLARIOU, Hyoung-Ju JI
  • COMMUNICATION SUPPORT FOR LOW CAPABILITY DEVICES
    Publication number: 20160014740
    Abstract: Methods and apparatuses for transmitting and receiving signaling, by a User Equipment (UE) with reduced processing capabilities, to conserve power are provided. A method for transmitting from a network a Physical Downlink Shared CHannel (PDSCH) to a first User Equipment (UE) from a first class of UEs or to a second UE from a second class of UEs, includes transmitting a PDSCH to the first UE using a first bandwidth unit; and transmitting a PDSCH to the second UE using a second bandwidth unit, wherein the second bandwidth unit is smaller than the first bandwidth unit.
    Type: Application
    Filed: September 22, 2015
    Publication date: January 14, 2016
    Inventors: Aris PAPASAKELLARIOU, Hyoung-Ju JI, Young-Bum KIM
  • METHOD AND APPARATUS FOR ALLOCATING A CONTROL CHANNEL RESOURCE OF A RELAY NODE IN A BACKHAUL SUBFRAME
    Publication number: 20160013911
    Abstract: A method and an apparatus for configuring a control channel between a first transceiver and a second transceiver in a communication system are provided. The method includes generating, by the first transceiver, a signaling message including information for the control channel; transmitting, by the first transceiver, the signaling message including information for the control channel to the second transceiver; generating, by the first transceiver, the control channel based on the information for the control channel; and transmitting, by the first transceiver, the generated control channel to the second transceiver at a subframe configured as a subframe associated with the control channel, wherein the information for the control channel includes resource assignment information, and information regarding that if interleaving is applied.
    Type: Application
    Filed: September 18, 2015
    Publication date: January 14, 2016
    Inventors: Hyoung Ju JI, Joon Young Cho
  • METHOD AND APPARATUS FOR ALLOCATING A CONTROL CHANNEL RESOURCE OF A RELAY NODE IN A BACKHAUL SUBFRAME
    Publication number: 20160013912
    Abstract: A method and apparatus for configuring a control channel between a first transceiver and a second transceiver in a communication system are provided. The method includes generating, by the first transceiver, a signaling message including information for the control channel; transmitting, by the first transceiver, the signaling message including information for the control channel to the second transceiver; generating, by the first transceiver, the control channel based on the information for the control channel; and transmitting, by the first transceiver, the generated control channel to the second transceiver, wherein the information for the control channel includes resource allocation information, and information related to whether interleaving applied and a type of reference signal.
    Type: Application
    Filed: September 18, 2015
    Publication date: January 14, 2016
    Inventors: Hyoung Ju JI, Joon Young CHO
  • METHOD AND APPARATUS FOR ALLOCATING A CONTROL CHANNEL RESOURCE OF A RELAY NODE IN A BACKHAUL SUBFRAME
    Publication number: 20160014754
    Abstract: A method and apparatus for configuring a control channel between a first transceiver and a second transceiver in a communication system are provided. The method includes generating, by the first transceiver, a signaling message including information for the control channel; transmitting, by the first transceiver, the signaling message including information for the control channel to the second transceiver; generating, by the first transceiver, the control channel based on the information for the control channel; and transmitting, by the first transceiver, the generated control channel to the second transceiver, wherein the information for the control channel includes resource assignment information, and reference signal information.
    Type: Application
    Filed: September 18, 2015
    Publication date: January 14, 2016
    Inventors: Hyoung Ju JI, Joon Young Cho
  • ADAPTING A NUMBER OF AGGREGATION LEVELS FOR CONTROL CHANNEL ELEMENTS
    Publication number: 20160014735
    Abstract: Methods and apparatuses are provided for a User Equipment (UE) to receive control information. A Downlink Control Information (DCI) format to be monitored is identified. An aggregation level is identified based on the identified DCI format. Control information is received based on the identified aggregation level.
    Type: Application
    Filed: September 21, 2015
    Publication date: January 14, 2016
    Inventors: Aris PAPASAKELLARIOU, Hyoung-Ju JI
  • Resource management system and method for inter-cell interference coordination in wireless communication system
    Patent number: 9226312
    Abstract: A resource management system and method for inter-cell interference coordination and channel information feedback in a mobile communication system are provided. The resource management method includes transmitting an Almost Blank Subframe (ABS) set from a first base station to a second base station, transmitting a reference resource configuration set for channel measurement and a Radio Link Monitor/Radio Resource Measurement (RLM/RRM) for radio resource measurement from the second base station to a terminal, and scheduling, at the second base station, the terminal in a subframe selected from the ABS set.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: December 29, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyoung Ju Ji, Joon Young Cho, Ju Ho Lee, Jae Chon Yu
  • METHOD AND DEVICE FOR MEASURING INTERFERENCE IN COMMUNICATION SYSTEM
    Publication number: 20150341814
    Abstract: A method and a device for measuring interference in a communication system are provided. The method includes measuring interference in a base station of a communication system, in which one or more antenna groups are arranged at different positions in a single cell, includes the steps of determining a reception antenna group which is one of the one or more antenna groups that transmits a signal other than an interference signal to a terminal, determining a reference signal in order to measure the strength of the signal transmitted by the reception antenna group, a step of determining a wireless resource so as to measure the interference in each of the one or more antenna groups, and notifying the terminal with the strength of the signal transmitted by the reception antenna group and information for measuring the interference in each of the one or more antenna groups.
    Type: Application
    Filed: November 1, 2013
    Publication date: November 26, 2015
    Inventors: Hyoung-Youl YU, Youn-Sun KIM, Hyo-Jin LEE, Hyoung-Ju JI, Ju-Ho LEE, Seung-Hoon CHOI
  • EXTENSION OF PHYSICAL DOWNLINK CONTROL SIGNALING IN A COMMUNICATION SYSTEM
    Publication number: 20150334690
    Abstract: Methods and apparatus are provided for the transmission of physical downlink control signaling. In one method, a User Equipment (UE) receives information associated with a physical resource block (PRB) for enhanced physical downlink control channel (EPDCCH) from a base station. Based on either first information received on physical control format indicator channel (PCFICH) or second information received on higher layer signaling, the UE determines a starting orthogonal frequency division multiple (OFDM) symbol on which EPDCCH transmission starts. The UE receives control information on the EPDDCH based on the information associated with the PRB and the determined starting OFDM symbol.
    Type: Application
    Filed: July 27, 2015
    Publication date: November 19, 2015
    Inventors: Aris PAPASAKELLARIOU, Joon-Young CHO, Hyoung-Ju JI
  • Method and apparatus for allocating resources of a control channel in a mobile communication system using orthogonal frequency division multiplexing
    Patent number: 9167569
    Abstract: Methods and apparatuses are provided for wireless communication. Control symbols are mapped to a plurality of resource element groups (REGs), which are not assigned to a physical channel format indication channel (PCFICH) or a Physical hybrid automatic repeat request indicator channel (PHICH). The REGs are allocated in a time first manner. The mapped control symbols are transmitted on a packet dedicated control channel (PDCCH). Each of the REGs in a first orthogonal frequency division multiplexing (OFDM) symbol of a first slot in a subframe comprises two resource elements (REs) for transmission of a cell-specific reference signal and four REs for transmission of a control signal.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: October 20, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Kyu Han, Ju-Ho Lee, Hwan-Joon Kwon, Young-Bum Kim, Byung-Sik Kim, Hyoung-Ju Ji
  • Adapting a number of aggregation levels for control channel elements
    Patent number: 9161354
    Abstract: Methods and apparatus are described for a base station to transmit and for a User Equipment (UE) to detect a Physical Downlink Control CHannel (PDCCH) conveying a Downlink Control Information (DCI) format scheduling data reception or data transmission by the UE. The base station transmits a PDCCH and the UE decodes candidate PDCCHs using a number of Control Channel Elements (CCEs) from a first set of CCEs for a first DCI format and using a number of CCEs from a second set of CCEs for a second DCI format depending on a maximum code rate for the DCI format transmission or on a scheduling bandwidth.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: October 13, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Aris Papasakellariou, Hyoung-Ju Ji
  • METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING REFERENCE SIGNAL IN DEVICE-TO-DEVICE COMMUNICATION
    Publication number: 20150270939
    Abstract: A method and an apparatus for generating a sequence including a demodulation reference signal (DM RS) and a preamble in device-to-device (D2D) communications are provided. The method includes obtaining, by a controller of an apparatus, a synchronization identify of a synchronization signal used for the D2D communication, obtaining a group identify of a communication group where a terminal belongs, generating a DM RS sequence for the D2D communication based on at least one of the synchronization identity and the group identity, mapping the DM RS sequence to predetermined symbol positions in a subframe, and transmitting the DM RS sequence from the terminal through the subframe.
    Type: Application
    Filed: March 20, 2015
    Publication date: September 24, 2015
    Inventors: Sang-Min RO, Yong-Jun KWAK, Kyeong-In JEONG, Hyoung-Ju JI
  • METHOD AND DEVICE FOR DECODING RECEPTION SIGNAL IN WIRELESS COMMUNICATION SYSTEM
    Publication number: 20150270918
    Abstract: A method of decoding a reception signal having an interference signal included therein by User Equipment (UE) in a wireless communication system is provided. The method includes receiving the reception signal having the interference signal included therein, identifying at least one of transmission parameters for the interference signal, identifying a modulation scheme of the interference signal and reception strength of the interference signal using the identified transmission parameter, removing the interference signal from the reception signal based on the identified modulation scheme and the identified reception strength of the interference signal, and decoding the reception signal from which the interference signal is removed.
    Type: Application
    Filed: March 20, 2015
    Publication date: September 24, 2015
    Inventors: Hyo-Jin LEE, Cheol-Kyu SHIN, Hyoung-Ju JI, Yong-Jun KWAK, Young-Bum KIM, Youn-Sun KIM, Ju-Ho LEE
  • Communication support for low capability devices
    Patent number: 9144065
    Abstract: Methods and apparatuses for transmitting and receiving signaling, by a User Equipment (UE) with reduced processing capabilities, to conserve power are provided. A method for transmitting from a network a Physical Downlink Shared CHannel (PDSCH) to a first User Equipment (UE) from a first class of UEs or to a second UE from a second class of UEs, includes transmitting a PDSCH to the first UE using a first bandwidth unit; and transmitting a PDSCH to the second UE using a second bandwidth unit, wherein the second bandwidth unit is smaller than the first bandwidth unit.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: September 22, 2015
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Aris Papasakellariou, Hyoung-Ju Ji, Young-Bum Kim