Method for transmitting/receiving a machine type communication physical downlink control channel

    公开(公告)号:US11985675B2

    公开(公告)日:2024-05-14

    申请号:US17265548

    申请日:2019-08-09

    IPC分类号: H04W72/04 H04W72/23

    CPC分类号: H04W72/23

    摘要: A method for transmitting an MTC physical downlink control channel (MPDCCH) by a base station in a wireless communication system supporting machine type communication (MTC). A base station transmits, to a terminal. configuration information related to the transmission of an MPDCCH and maps the MPDCCH onto multiple resource elements (REs) of at least one first symbol constituting a first slot of a special subframe. The special subframe is a subframe in which, among symbols constituting the subframe, the number of symbols for data transmission is smaller than or equal to a predetermined number. The base station transmits the MPDCCH to the terminal over the multiple resource elements, wherein the mapping step is performed by copying at least one second symbol of a second slot adjacent to the first slot onto the at least one first symbol.

    Method for transmitting and receiving signal in wireless communication system, and apparatus therefor

    公开(公告)号:US11937255B2

    公开(公告)日:2024-03-19

    申请号:US17286115

    申请日:2019-11-04

    IPC分类号: H04W72/12 H04L5/00 H04W72/23

    CPC分类号: H04W72/23 H04L5/0053

    摘要: The present invention relates to a method for receiving a downlink signal in a wireless communication system, and apparatus therefor. More particularly, the present invention relates to a method and an apparatus therefor, the method comprising the steps of: receiving configuration information for multiple transport block scheduling; receiving downlink control information (DCI) on the basis of the received configuration information; and receiving at least one transport block on the basis of the received DCI, wherein on the basis of the DCI being received through a specific search space candidate in a search space for multiple transport block scheduling, a start position of the transport block is determined on the basis of an end position and a scheduling delay of the specific search space candidate, and the specific search space candidate and the scheduling delay are equally applied to the determination of the start position of the next transport block.

    Method and device for transmitting and receiving signal in wireless communication system

    公开(公告)号:US11889562B2

    公开(公告)日:2024-01-30

    申请号:US18132337

    申请日:2023-04-07

    IPC分类号: H04W74/08 H04L27/26 H04W74/00

    摘要: One embodiment of the present invention relates to a method and a device for transmitting and receiving a signal in a wireless communication system, the method comprising the steps of: performing a random access procedure; monitoring a physical downlink control channel (PDCCH) for an ON duration on the basis of a configured discontinuous reception (DRX) operation after performing the random access procedure; and operating an inactivity timer on the basis of the successfully received PDCCH for the ON duration. During the random access procedure, a random access preamble is transmitted in one or two physical random access channel (PRACH) slots. The one or two PRACH slots are determined from among N slots corresponding to a reference slot. A subcarrier spacing (SCS) setting value for the reference slot may be 2 on the basis of the SCS setting value applied to the N slots being 5 or 6.

    METHOD AND APPARATUS FOR PERFORMING SIDELINK COMMUNICATION IN WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20230354372A1

    公开(公告)日:2023-11-02

    申请号:US18064007

    申请日:2022-12-09

    IPC分类号: H04W72/25 H04W72/0453

    CPC分类号: H04W72/25 H04W72/0453

    摘要: A method and apparatus for performing sidelink communication in a wireless communication system are disclosed. A method for performing sidelink communication by a first terminal according to an embodiment of the present disclosure may include receiving configuration information related to an SL resource pool including first information related to at least one subchannel from a base station; and transmitting sidelink control information (SCI) indicating an index of a specific subchannel among the at least one subchannel to a second UE, and the at least one subchannel is configured based on at least one resource block (RB)-interlace, and the configuration information includes a number of the at least one RB-interlace and an index of a starting interlace.

    Method for estimating channel by terminal in wireless communication system, and device therefor

    公开(公告)号:US11799691B2

    公开(公告)日:2023-10-24

    申请号:US17266424

    申请日:2019-08-09

    摘要: Disclosed are a method for channel estimation in a wireless communication system, and a device therefor. Particularly, the method for estimating a channel by a terminal in a wireless communication comprises the steps for: receiving, from a base station, configuration information for channel estimation, the configuration information comprising relationship information related to the relationship between a cell-specific reference signal (CRS) and a demodulation-reference signal (DM-RS); receiving the CRS from the base station; receiving, from the base station, on a specific channel, the DM-RS and machine type communication (MTC) control information; estimating the specific channel by using the CRS and DM-RS, on the basis of the relationship information; and decoding the MTC control information via the estimated specific channel, wherein the relationship information comprises information about a pre-coding relationship between the CRS and DM-RS, and power ratio information of the CRS with respect to the DM-RS, and the power ratio information is information related to the power ratio between a CRS port and DM-RS port for an idle mode.