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Method and apparatus for transmitting and receiving downlink control signal in wireless communication system

專利號
US11159300B2
公開日期
2021-10-26
申請人
Samsung Electronics Co., Ltd.（KR Suwon-si）
發(fā)明人
Taehyoung Kim; Youngbum Kim; Jinyoung Oh; Seunghoon Choi; Heedon Gha
IPC分類
H04L5/10; H04L5/00; H04L1/00; H04W72/04
技術領域
coreset,dmrs,search,bs,terminal,pdcch,dci,space,in,may
地域： Suwon-si

摘要

The present disclosure relates to a communication technique for fusing a 5G communication system to support a higher data rate than a 4G system with IoT technology; and a system thereof. In embodiments according to the disclosure provide an improved method for transmitting and receiving a control channel. A method performed by a base station according to disclosed aspects includes: transmitting first control area setting information containing first demodulation reference signal (DMRS) setting information for a first control area, transmitting second control area setting information containing second DMRS setting information for a second control area, identifying a third control area where the first control area overlaps with the second control area, and transmitting a DMRS on the basis of the first DMRS configuration information in the first control area including the third control area. A corresponding method performed by a terminal, a base station and a terminal are also described.

說明書

A BS may configure at least one common search space so as to exist in each of a primary cell and a secondary cell configured for a terminal, or may configure a common search space so as to exist only in the primary cell. This configuration may vary depending on a common search space type.

For example, the above-described common search space type 1, common search space type 2, and common search space type 3 may be configured to exist only in the primary cell configured for the terminal. That is, the terminal may monitor common search space type 1, common search space type 2, and common search space type 3 in the primary cell. Since each of common search space type 1 (a purpose of SI reception), common search space type 2 (a purpose of random access), and common search space type 3 (a purpose of paging) is not used to transmit or receive DL/UL data by the terminal but corresponds to a common search space for transmission of DL control information used for another purpose, it may be desirable for the terminal to monitor common search space type 1, common search space type 2, and common search space type 3 only in the primary cell.

權利要求

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