KR20220062422A - 빔 포밍 기반의 시스템에서의 빔 제어를 위한 방법 및 장치 - Google Patents
빔 포밍 기반의 시스템에서의 빔 제어를 위한 방법 및 장치 Download PDFInfo
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- H04L5/0033—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation each allocating device acting autonomously, i.e. without negotiation with other allocating devices
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- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
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- H04L5/00—Arrangements affording multiple use of the transmission path
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- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
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Abstract
Description
도 1a는 하나 이상의 개시된 실시형태가 구현될 수도 있는 예시적인 통신 시스템의 시스템 도면이다;
도 1b는, 도 1a에서 예시되는 통신 시스템 내에서 사용될 수도 있는 예시적인 무선 송수신 유닛(WTRU)의 시스템 도면이다;
도 1c는, 도 1a에서 예시되는 통신 시스템 내에서 사용될 수도 있는 예시적인 코어 네트워크 및 예시적인 무선 액세스 네트워크의 시스템 도면이다;
도 2는 예시적인 1 GHz 시스템 대역폭에 대한 예시적인 직교 주파수 분할 멀티플렉싱(orthogonal frequency division multiplexing; OFDM) 프레임 구조의 도면이다;
도 3은 예시적인 2 GHz 시스템 대역폭에 대한 예시적인 단일 캐리어 프레임 구조의 도면이다;
도 4는 완전히 디지털화된 빔포밍을 위한 예시적인 위상 안테나 어레이(phase antenna array; PAA)의 도면이다;
도 5는 다수의 안테나 엘리먼트에 대해 하나의 무선 주파수(radio frequency; RF) 체인을 포함하는 하나의 PAA를 이용한 아날로그 빔포밍의 예의 도면이다;
도 6은 하나의 PAA 및 두 개의 RF 체인을 이용한 아날로그 빔포밍의 예의 도면이다;
도 7은 두 개의 PAA 및 두 개의 RF 체인을 이용한 아날로그 빔포밍의 예의 도면이다;
도 8은 두 개의 PAA 및 하나의 RF 체인을 이용한 아날로그 빔포밍의 예의 도면이다;
도 9는 초 고밀도 배치에서의 탄성 속성의 예를 예시하는 도면이다;
도 10은 빔포밍 및 스케줄링의 예시적인 방법의 흐름도이다;
도 11은 WTRU에서 구현되는 확장된 모니터링을 위한 예시적인 방법의 흐름도이다;
도 12는 밀리미터파 기지국(millimeter wave base station; mB)과 같은 기지국에서 구현되는 확장된 모니터링을 위한 예시적인 방법의 흐름도이다;
도 13a 및 도 13b는 확장된 모니터링의 더욱 구체적인 예의 도면(1300A 및 1300B)이다.
Claims (15)
- 무선 송수신 유닛(wireless transmit/receive unit; WTRU)에 있어서,
프로세서; 및
트랜스시버
를 포함하고,
상기 프로세서와 상기 트랜스시버는, 제1 빔을 사용하여 물리적 다운링크 제어 채널(physical downlink control channel; PDCCH) 모니터링을 수행하도록 구성되고,
상기 프로세서와 상기 트랜스시버는 또한, PDCCH 모니터링을 위해 제2 빔에 대한 기준 신호의 표시를 포함한 기지국으로부터의 매체 액세스 제어(medium access control; MAC) 커맨드 송신을 수신하도록 구성되고,
상기 프로세서와 상기 트랜스시버는 또한, 상기 MAC 커맨드가 수신되는 것에 기초하여 상기 제2 빔을 사용하여 PDCCH 모니터링을 수행하고 상기 기지국에 확인 응답(acknowledgement; ACK)을 전송하도록 구성되는 것인, 무선 송수신 유닛(WTRU). - 제1항에 있어서,
상기 프로세서와 상기 트랜스시버는 또한, PUCCH 리소스 상에서 상기 ACK를 전송하기 위한 타이밍 정보 및 상기 PUCCH 리소스의 표시를 포함하는 PDCCH 송신을 수신하도록 구성되는 것인, 무선 송수신 유닛(WTRU). - 제2항에 있어서,
상기 프로세서와 상기 트랜스시버는 또한, 상기 PUCCH 리소스 상에서 그리고 상기 PUCCH 리소스의 표시 내에 제공된 상기 타이밍 정보를 사용하여, 상기 기지국으로 상기 ACK를 전송하도록 구성된 것인, 무선 송수신 유닛(WTRU). - 제1항에 있어서,
상기 프로세서와 상기 트랜스시버는 또한,
제어 채널 빔의 무선 링크 품질을 평가하고,
상기 제어 채널 빔의 상기 무선 링크 품질이 문턱값 아래로 평가되는 것에 기초하여 상기 제2 빔에 대한 선호하는 빔의 표시를 상기 기지국으로 전송하도록
구성되는 것인, 무선 송수신 유닛(WTRU). - 제4항에 있어서,
상기 프로세서와 상기 트랜스시버는 또한, 물리적 랜덤 액세스 채널(physical random access channel; PRACH) 프리앰블을 사용하여 상기 선호하는 빔의 표시를 전송하도록 구성된 것인, 무선 송수신 유닛(WTRU). - 제1항에 있어서,
상기 프로세서와 상기 트랜스시버는 또한, 제1 검색 공간을 모니터링하는 것에 의해 상기 제1 빔을 사용하여 상기 PDCCH 모니터링을 수행하도록 구성되고,
상기 프로세서와 상기 트랜스시버는 또한, 제2 검색 공간을 모니터링하는 것에 의해 상기 제2 빔을 사용하여 상기 PDCCH 모니터링을 수행하도록 구성되는 것인, 무선 송수신 유닛(WTRU). - 제6항에 있어서,
상기 제1 검색 공간 및 상기 제2 검색 공간은 동일한 검색 공간이거나 상이한 검색 공간인 것인, 무선 송수신 유닛(WTRU). - 제1항에 있어서,
상기 기준 신호는 채널 상태 정보 기준 신호(channel state information reference signal; CSI-RS)인 것인, 무선 송수신 유닛(WTRU). - 무선 송수신 유닛(WTRU)에서 구현되는 방법에 있어서,
제1 빔을 사용하여 물리적 다운링크 제어 채널(physical downlink control channel; PDCCH) 모니터링을 수행하는 단계;
PDCCH 모니터링을 위해 제2 빔에 대한 기준 신호의 표시를 포함한 기지국으로부터의 매체 액세스 제어(medium access control; MAC) 커맨드 송신을 수신하는 단계; 및
상기 MAC 커맨드가 수신되는 것에 기초하여,
상기 기지국으로 확인 응답(acknowledgement; ACK)을 전송하는 단계; 및
상기 제2 빔을 사용하여 PDCCH 모니터링을 수행하는 단계
를 포함하는, 무선 송수신 유닛(WTRU)에서 구현되는 방법. - 제9항에 있어서,
PUCCH 리소스 상에서 상기 ACK를 전송하기 위한 타이밍 정보 및 상기 PUCCH 리소스의 표시를 포함하는 PDCCH 송신을 수신하는 단계
를 더 포함하는, 무선 송수신 유닛(WTRU)에서 구현되는 방법. - 제10항에 있어서,
상기 PUCCH 리소스 상에서 그리고 상기 PUCCH 리소스의 표시 내에 제공된 상기 타이밍 정보를 사용하여, 상기 기지국으로 상기 ACK를 전송하는 단계
를 더 포함하는, 무선 송수신 유닛(WTRU)에서 구현되는 방법. - 제9항에 있어서,
제어 채널 빔의 무선 링크 품질을 평가하는 단계; 및
상기 제어 채널 빔의 상기 무선 링크 품질이 문턱값 아래로 평가되는 것에 기초하여 상기 제2 빔에 대한 선호하는 빔의 표시를 상기 기지국으로 전송하는 단계
를 더 포함하는, 무선 송수신 유닛(WTRU)에서 구현되는 방법. - 제12항에 있어서,
물리적 랜덤 액세스 채널(physical random access channel; PRACH) 프리앰블을 사용하여 상기 선호하는 빔의 표시를 전송하는 단계
를 더 포함하는, 무선 송수신 유닛(WTRU)에서 구현되는 방법. - 제9항에 있어서,
상기 제1 빔을 사용하여 상기 PDCCH 모니터링을 수행하는 단계는 제1 검색 공간을 모니터링하는 단계를 포함하고, 상기 제2 빔을 사용하여 상기 PDCCH 모니터링을 수행하는 단계는 제2 검색 공간을 모니터링하는 단계를 포함하는 것인, 무선 송수신 유닛(WTRU)에서 구현되는 방법. - 제14항에 있어서,
상기 제1 검색 공간 및 상기 제2 검색 공간은 동일한 검색 공간이거나 상이한 검색 공간인 것인, 무선 송수신 유닛(WTRU)에서 구현되는 방법.
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