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    Method and apparatus for phase tracking reference signal in a wireless communication system
    11.
    发明授权
    Method and apparatus for phase tracking reference signal in a wireless communication system 有权

    公开(公告)号：US11552754B2

    公开(公告)日：2023-01-10

    申请号：US16611211

    申请日：2018-05-04

    Applicant: Samsung Electronics Co., Ltd

    Inventor： Mythri Hunukumbure ,  Yinan Qi

    IPC: H04L5/00 ,  H04W72/04

    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). Described is a method for providing a Phase Tracking Reference Signal (PTRS) in a wireless communication system comprising at least a first base station and a second base station, and a mobile device. The first and second base stations cooperate to jointly support the mobile device. The method comprises identifying at least two mutually exclusive sets of frequency resources. The method further comprises mapping, by the first base station, at least a portion of PTRS information of the first base station to a first set of the frequency resources, mapping, by the first base station, a zero-power PTRS to a second set of the frequency resources, or leaving, by the first base station, the second set of frequency resources empty, and transmitting, by the first base station, a signal comprising the PTRS information of the first base station according to the frequency resource mapping. The method further comprises mapping, by the second base station, at least a portion of PTRS information of the second base station to the second set of the frequency resources, mapping, by the second base station, a zero-power PTRS to the first set of the frequency resources, or leaving, by the second base station, the first set of frequency resources empty, and transmitting, by the second base station, a signal comprising the PTRS information of the second base station according to the frequency resource mapping.

    Apparatus and method for providing density of PT-RS
    13.
    发明授权
    Apparatus and method for providing density of PT-RS 有权

    公开(公告)号：US11489644B2

    公开(公告)日：2022-11-01

    申请号：US16969957

    申请日：2019-02-15

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Yinan Qi ,  Mythri Hunukumbure

    IPC: H04L5/00 ,  H04L1/00

    Abstract: Provided is a method and apparatus for providing information related to density of a PT-RS in a wireless communication system. The operation method of a base station may include: configuring a phase tracking reference signal (PT-RS) corresponding to a terminal; and transmitting time and frequency density information of the PT-RS to the terminal, and the time and frequency density information of the PT-RS is configured based on threshold values of time and frequency density of the PT-RS which are compressed based on at least one of a uniform sampling grid scheme, a non-uniform sampling grid scheme, a combinational indexing scheme, or a scheme of imposing a limit on a threshold value. Other embodiments may be possible.

    Method and apparatus for performing random access in wireless communication system
    14.
    发明授权
    Method and apparatus for performing random access in wireless communication system 有权

    公开(公告)号：US11388757B2

    公开(公告)日：2022-07-12

    申请号：US17054759

    申请日：2019-05-10

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Yinan Qi ,  Mythri Hunukumbure

    IPC: H04B7/185 ,  H04W74/08 ,  H04J13/00 ,  H04L27/26 ,  H04W84/06

    Abstract: Provided are methods and apparatuses for performing a random access of a terminal in a wireless communication system. A method, performed by a terminal, of performing a random access, according to an embodiment, includes receiving preamble configuration information from a base station, obtaining a RACH (random access channel) preamble scaled in length in proportion to a difference between an expected minimum distance and an expected maximum distance to the base station from opposed edges of a cell served by the base station, based on the preamble configuration information and transmitting the obtained RACH preamble to the base station to access a NTN (non-terrestrial network).

    Method and apparatus for phase tracking reference signal in a wireless communication system
    15.
    发明授权
    Method and apparatus for phase tracking reference signal in a wireless communication system 有权

    公开(公告)号：US11375462B2

    公开(公告)日：2022-06-28

    申请号：US16497416

    申请日：2018-03-22

    Applicant: Samsung Electronics Co., Ltd

    Inventor： Mythri Hunukumbure ,  Yinan Qi

    IPC: H04B7/185 ,  H04W52/42 ,  H04B17/336 ,  H04B7/0452 ,  H04L1/00 ,  H04W52/14 ,  H04W52/24

    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). Described is a method for providing a Phase Tracking Reference Signal (PTRS) in a wireless communication system. The method comprises transmitting, by a base station to a plurality of mobile devices, the PTRS in a wide beam transmission at a first power level. The first power level is set such that at least some of the mobile devices receive the PTRS with a sufficiently high signal strength to enable the PTRS to be correctly received and such that at least some of the mobile devices receive the PTRS with a sufficiently low signal strength to enable the PTRS to be processed as manageable interference. A first mobile device may estimate the Signal to Interference plus Noise Ratio (SINR) of the received PTRS, and transmit, to the base station, feedback information based on the estimated SINR. The base station may transmit, to the first mobile device, a narrow beam transmission comprising one or more allocated Resource Elements (REs) configured according to the feedback information. The allocated REs may be configured to (i) be left empty, so as to carry no information, (ii) contain data, or (iii) contain PTRS.

    Methods, apparatus, and systems for supporting a handover
    16.
    发明授权
    Methods, apparatus, and systems for supporting a handover 有权

    公开(公告)号：US12058578B2

    公开(公告)日：2024-08-06

    申请号：US17766000

    申请日：2020-09-24

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Mythri Hunukumbure

    IPC: H04W36/08 ,  H04L1/1812 ,  H04W36/00

    CPC classification number: H04W36/08 ,  H04L1/1812 ,  H04W36/0058

    Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A method of a first base station for supporting a handover procedure, the method comprising determining to perform a handover of a user equipment, UE, to a second base station; determining whether Hybrid automatic repeat request, HARQ, is to be used after the handover is completed; and based on determining that HARQ is to be used, notifying the UE that HARQ is to be used after the handover is completed and notifying the second base station that HARQ is to be used after the handover is completed.

    Resource element offsetting in a telecommunication system
    18.
    发明授权
    Resource element offsetting in a telecommunication system 有权

    公开(公告)号：US11206657B2

    公开(公告)日：2021-12-21

    申请号：US16766666

    申请日：2018-11-26

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Hyunil Yoo ,  Mythri Hunukumbure ,  Yinan Qi ,  Hyungju Nam

    IPC: H04W72/04 ,  H04L5/00 ,  H04L27/14

    Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services.
    Disclosed is a method of subcarrier index mapping for application to Phase Tracking Reference Signal, PTRS, within a Resource Block, RB, in a telecommunication system, wherein a particular subcarrier index to which PTRS is mapped is determined on the basis of one or more of: Cell ID, DMRS Port Index, DMRS SCID UE-specific ID (RNTI).

    Configuration of reference signals in a multi-transmission point telecommunication system
    19.
    发明授权
    Configuration of reference signals in a multi-transmission point telecommunication system 有权

    公开(公告)号：US11206118B2

    公开(公告)日：2021-12-21

    申请号：US16969945

    申请日：2019-02-15

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Mythri Hunukumbure ,  Yinan Qi

    IPC: H04L5/00 ,  H04W72/04

    Abstract: The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. Disclosed is a method of configuring a reference signal in a telecommunication system, comprising the step of determining if multiple Transmission Points, TRP, operation is activated or not, and configuring the reference signal in accordance with the determination.

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