KR101774323B1 - 전송 전력을 제어하는 방법 및 이를 위한 장치 - Google Patents
전송 전력을 제어하는 방법 및 이를 위한 장치 Download PDFInfo
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Abstract
Description
도 1은 E-UMTS(Evolved Universal Mobile Telecommunications System)의 네트워크 구조를 나타낸다.
도 2는 3GPP 무선 접속망 규격에 기초한 단말과 E-UTRAN 사이의 무선 인터페이스 프로토콜 구조를 예시한다.
도 3은 OFDMA 및 SC-FDMA를 위한 송신기 및 수신기의 블록도를 예시한다.
도 4는 LTE에서 사용되는 무선 프레임의 구조를 예시한다.
도 5는 단일 콤포넌트 반송파 상황 하에서 통신을 수행하는 예를 나타낸다.
도 6a는 LTE에서 사용되는 상향링크 서브프레임의 구조를 예시한다.
도 6b는 LTE에서 사용되는 상향링크 제어 채널의 구조를 예시한다.
도 7은 다중 콤포넌트 반송파 상황 하에서 통신을 수행하는 예를 나타낸다.
도 8은 본 발명의 실시예에 따라 전송 전력을 조정하는 예를 나타낸다.
도 9는 본 발명의 실시예에 따라 복수의 신호를 전송하는 예를 나타낸다.
도 10은 하나 이상의 콤포넌트 반송파 단위로 최대 전송 전력이 제한되는 경우에 본 발명의 실시예에 따라 전송 전력을 조정하는 예를 나타낸다.
도 11은 하나 이상의 콤포넌트 반송파 단위로 최대 전송 전력이 제한되는 경우에 본 발명의 실시예에 따라 전송 전력을 조정하는 다른 예를 나타낸다.
도 12는 본 발명에 일 실시예에 적용될 수 있는 기지국과 단말을 예시한다.
Claims (16)
- 무선 통신 시스템에서 단말이 상향링크 채널의 전력을 제어하는 방법에 있어서,
해당 콤퍼넌트 캐리어 (Component Carrier, CC)에서 전송할 적어도 하나의 상향링크 채널의 총 전송 전력이 상기 해당 CC에 설정된 최대 전송 전력을 초과하지 않도록 하는 방법으로 CC 별로 전송할 적어도 하나의 상향링크 채널의 총 전송 전력을 상기 CC 별로 조정하는 단계; 및
복수의 CC 상에서의 전송할 복수의 상향링크 채널의 총 전송 전력이 상기 단말에 설정된 최대 전송 전력을 초과하는 경우에는, 상기 복수의 상향링크 채널 중 우선 순위가 가장 낮은 하나의 상향링크 채널의 전송 전력을 조정하는 단계를 포함하는, 단말의 상향링크 채널 전력 제어 방법. - 제 1항에 있어서,
상기 복수의 상향링크 채널은 물리 상향링크 제어 채널(physical uplink control channel, PUCCH) 및 물리 상향링크 공유 채널(physical uplink shared channel, PUSCH)를 포함하는, 단말의 상향링크 채널 전력 제어 방법. - 제 1항에 있어서,
상기 복수의 상향링크 채널은 복수의 물리 상향링크 공유 채널(physical uplink shared channel, PUSCH)를 포함하는, 단말의 상향링크 채널 전력 제어 방법. - 제 2항에 있어서,
상기 PUCCH와 상기 PUSCH 중에서 상기 PUSCH가 우선 순위가 가장 낮음에 따라 상기 PUSCH의 전송 전력을 조정하는, 단말의 상향링크 채널 전력 제어 방법. - 제 3항에 있어서,
상기 복수의 PUSCH 중에서 가장 작은 데이터 양, 가장 낮은 변조 및 코딩 방식(modulation and coding scheme, MCS) 레벨, 또는 가장 낮은 변조율(modulation order)을 가지는 PUSCH의 전송 전력을 조정하는, 단말의 상향링크 채널 전력 제어 방법. - 제 1항에 있어서,
상기 복수의 상향링크 채널은 복수의 물리 상향링크 공유 채널(physical uplink shared channel, PUSCH)과 사운딩 참조 신호(sounding reference signal, SRS)를 포함하고,
상기 전송 전력 조정 단계는 상기 PUSCH와 상기 SRS 중 우선순위가 낮은 상기 SRS의 전송을 드롭(drop)하는 방식으로 조정하는, 단말의 상향링크 채널 전력 제어 방법. - 삭제
- 삭제
- 무선 통신 시스템에서 상향링크 채널의 전력을 제어하기 위한 단말에 있어서,
해당 콤퍼넌트 캐리어 (Component Carrier, CC)에서 전송할 적어도 하나의 상향링크 채널의 총 전송 전력이 상기 해당 CC에 설정된 최대 전송 전력을 초과하지 않도록 하는 방법으로 CC 별로 전송할 적어도 하나의 상향링크 채널의 총 전송 전력을 상기 CC 별로 조정하고,
복수의 CC 상에서의 전송할 복수의 상향링크 채널의 총 전송 전력이 상기 단말에 설정된 최대 전송 전력을 초과하는 경우에는, 상기 복수의 상향링크 채널 중 우선 순위가 가장 낮은 하나의 상향링크 채널의 전송 전력을 조정하는 프로세서를 포함하는, 단말. - 제 9항에 있어서,
상기 복수의 상향링크 채널은 물리 상향링크 제어 채널(physical uplink control channel, PUCCH) 및 물리 상향링크 공유 채널(physical uplink shared channel, PUSCH)를 포함하는, 단말. - 제 10항에 있어서,
상기 복수의 상향링크 채널은 복수의 물리 상향링크 공유 채널(physical uplink shared channel, PUSCH)를 포함하는, 단말. - 제 10항에 있어서,
상기 프로세서는 상기 PUCCH와 상기 PUSCH 중에서 상기 PUSCH가 우선 순위가 가장 낮음에 따라 상기 PUSCH의 전송 전력을 조정하는, 단말. - 제 11항에 있어서,
상기 프로세서는 상기 복수의 PUSCH 중에서 가장 작은 데이터 양, 가장 낮은 변조 및 코딩 방식(modulation and coding scheme, MCS) 레벨, 또는 가장 낮은 변조율(modulation order)을 가지는 PUSCH의 전송 전력을 조정하는, 단말. - 제 9항에 있어서,
상기 복수의 상향링크 채널은 복수의 물리 상향링크 공유 채널(physical uplink shared channel, PUSCH)과 사운딩 참조 신호(sounding reference signal, SRS)를 포함하고,
상기 프로세서는 상기 PUSCH와 상기 SRS 중 우선순위가 낮은 상기 SRS의 전송을 드롭(drop)하는 방식으로 전송 전력을 조정하는, 단말. - 삭제
- 삭제
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