KR101577245B1 - 기지국 협력 통신 시스템의 링크 적응 - Google Patents
기지국 협력 통신 시스템의 링크 적응 Download PDFInfo
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- KR101577245B1 KR101577245B1 KR1020147012054A KR20147012054A KR101577245B1 KR 101577245 B1 KR101577245 B1 KR 101577245B1 KR 1020147012054 A KR1020147012054 A KR 1020147012054A KR 20147012054 A KR20147012054 A KR 20147012054A KR 101577245 B1 KR101577245 B1 KR 101577245B1
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- 238000005259 measurement Methods 0.000 claims abstract description 72
- 238000004891 communication Methods 0.000 claims abstract description 48
- 238000000034 method Methods 0.000 claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims description 12
- 238000012937 correction Methods 0.000 claims description 6
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- 230000001143 conditioned effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
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- 230000007774 longterm Effects 0.000 description 1
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Abstract
Description
도 1은 여러 실시예에 따른 무선 통신 네트워크를 개략적으로 예시한다.
도 2는 여러 실시예에 따른 여러 섹터들의 물리적 자원 블록을 개략적으로 예시한다.
도 3은 여러 실시예에 따른 링크 적응 피드백의 결정 및 피드백을 예시하는 플로우차트이다.
도 4는 여러 실시예에 따른 기지국의 링크 적응 동작을 예시하는 플로우차트이다.
도 5는 여러 실시예에 따른 예시적인 시스템을 개략적으로 도시한다.
Claims (29)
- 채널 간섭 모듈 - 상기 채널 간섭 모듈은, 사용자 장비(UE)로부터 기지국 협력 통신(coordinated multipoint (CoMP)) 측정 집단의 협력 노드와 연관된 기준신호 수신 전력(reference signal receive power (RSRP)) 정보를 수신하고, 상기 UE로부터 채널 품질 표시자(channel quality indicator (CQI))를 수신하고, 상기 RSRP 정보 및 상기 CQI에 기반하여 조절된 CQI를 결정하되, 상기 협력 노드는 상기 CoMP 측정 집단의 서빙 노드와 협력하여 상기 UE와의 무선 통신을 가능케함 - 과,
상기 조절된 CQI에 기반하여 상기 협력 노드 또는 상기 서빙 노드와 연관된 통신 링크의 전송 파라미터를 적응시키는 링크 적응 모듈을 포함하는
기지국 협력 통신 시스템에서 링크 적응을 위한 장치.
- 제1항에 있어서,
상기 채널 간섭 모듈은,
상기 UE로부터 상기 서빙 노드의 섹터의 소거된(muted) 자원의 측정된 신호 전력을 표시하는 수신 신호 강도 표시자(received signal strength indicator (RSSI))를 수신하고,
상기 RSSI에 추가로 기반하여 상기 조절된 CQI를 결정하는
기지국 협력 통신 시스템에서 링크 적응을 위한 장치.
- 제1항에 있어서,
상기 CQI 및 상기 통신 링크는 상기 협력 노드와 연관되는
기지국 협력 통신 시스템에서 링크 적응을 위한 장치.
- 제3항에 있어서,
상기 협력 노드는 상기 CoMP 측정 집단의 제1 협력 노드이고, 상기 링크 적응 모듈은 다른 조절된 CQI에 근거하여 상기 CoMP 측정 집단의 제2 협력 노드와 연관된 통신 링크의 전송 파라미터를 더 적응하는
기지국 협력 통신 시스템에서 링크 적응을 위한 장치.
- 제1항에 있어서,
상기 CQI 및 상기 통신 링크는 상기 서빙 노드와 연관된
기지국 협력 통신 시스템에서 링크 적응을 위한 장치.
- 제1항에 있어서,
상기 채널 간섭 모듈은 상기 RSRP 정보를 무선 자원 관리(radio resource management (RRM)) 메시지의 일부로서 수신하는
기지국 협력 통신 시스템에서 링크 적응을 위한 장치.
- 제1항에 있어서,
상기 채널 간섭 모듈은,
CoMP 측정 집단의 복수의 노드들의 RSRP 정보를 수신하고,
상기 복수의 노드들의 물리적 다운링크 공유 채널(physical downlink shared channel (PDSCH))의 순간적 하중(instantaneous loading)을 결정하고,
수신된 RSRP 정보 및 순간 하중에 기반하여 상기 복수의 노드들의 협력 노드 간섭을 결정하는
기지국 협력 통신 시스템에서 링크 적응을 위한 장치.
- 제7항에 있어서,
상기 채널 간섭 모듈은,
상기 PDSCH 상의 총 간섭 전력을 결정하고,
결정된 총 간섭 전력 및 협력 노드 간섭 전력에 근거하여 보정 계수를 결정하고,
상기 CQI 및 상기 보정 계수에 근거하여 상기 조절된 CQI를 결정하는
기지국 협력 통신 시스템에서 링크 적응을 위한 장치.
- 제7항에 있어서,
상기 복수의 노드들은 상기 서빙 노드를 제외한 상기 CoMP 측정 집단의 모든 노드들을 포함하는
기지국 협력 통신 시스템에서 링크 적응을 위한 장치.
- 제7항에 있어서,
상기 채널 간섭 모듈은,
상기 CoMP 측정 집단의 하나 이상의 스케줄러로부터 스케줄링 리포트를 수신하고,
스케줄링 리포트에 기반하여 상기 순간 하중을 결정하도록 구성되며,
상기 하나 이상의 스케줄러는 상기 복수의 노드 상에 각기 배치된 복수의 스케줄러를 포함하고,
상기 채널 간섭 모듈은,
상기 복수의 노드와의 하나 이상의 백홀 연결을 통해 상기 복수의 스케줄러로부터 스케줄링 리포트를 수신하는
기지국 협력 통신 시스템에서 링크 적응을 위한 장치.
- 제1항에 있어서,
상기 조절된 CQI는 제1의 조절된 CQI이고, 상기 CQI는 상기 협력 노드와 연관된 제1 CQI이며,
상기 채널 간섭 모듈은,
상기 UE로부터 상기 서빙 노드와 연관된 제2 CQI를 수신하고,
상기 RSRP 정보 및 상기 제2 CQI에 기반하여 제2의 조절된 CQI를 결정하도록 더 구성된
기지국 협력 통신 시스템에서 링크 적응을 위한 장치.
- 제11항에 있어서,
상기 채널 간섭 모듈은 교정 계수에 기반하여 상기 제1 및 제2의 조절된 CQI를 결정하는
기지국 협력 통신 시스템에서 링크 적응을 위한 장치.
- 제1항 내지 제12항 중의 어느 항에 있어서,
상기 서빙 노드로서 동작하는 기지국을 포함하는
기지국 협력 통신 시스템에서 링크 적응을 위한 장치.
- 채널 측정 모듈 - 상기 채널 측정 모듈은, 기지국 협력 통신(coordinated multipoint (CoMP)) 측정 집단의 협력 노드에 의해 송신된 채널 상태 정보 기준 신호(channel state information reference signal (CSI-RS))를 수신하고, 상기 CSI-RS에 기반하여 상기 협력 노드의 기준 신호 수신 전력(reference signal receive power (RSRP)) 측정치를 결정함 - 과,
상기 RSRP 측정치를 상기 CoMP 측정 집단의 서빙 노드에게 무선 자원 관리(radio resource management (RRM)) 측정 리포트의 일부로서 피드백하는 피드백 모듈을 포함하는
기지국 협력 통신 시스템에서 링크 적응을 위한 장치.
- 제14항에 있어서,
상기 CSI-RS은 제1 CSI-RS이며,
상기 채널 측정 모듈은,
상기 제1 CSI-RS에 근거하여 제1 채널 품질 표시자(channel quality indicator (CQI))를 결정하고,
상기 서빙 노드에 의해 송신된 제2 CSI-RS을 수신하고,
상기 제2 CSI-RS에 근거하여 제2 CQI를 결정하는
기지국 협력 통신 시스템에서 링크 적응을 위한 장치.
- 제15항에 있어서,
상기 피드백 모듈은 상기 제1 및 제2 CQI를 상기 RSRP 측정치로부터 별개로 상기 서빙 노드에 피드백하는
기지국 협력 통신 시스템에서 링크 적응을 위한 장치.
- 제14항에 있어서,
상기 CSI-RS은 물리적 다운링크 공유 채널(physical downlink shared channel (PDSCH))의 하나 이상의 자원 요소를 통해 수신되고,
상기 협력 노드는 상기 CoMP 측정 집단의 제1 섹터와 연관되며,
상기 제1 섹터와 다른 상기 CoMP 측정 집단의 섹터들은 상기 하나 이상의 자원 요소에 대응하는 소거된 자원들을 포함하는
기지국 협력 통신 시스템에서 링크 적응을 위한 장치.
- 제14항에 있어서,
상기 장치는 상기 CoMP 측정 집단의 제1 섹터 내에 배치되고,
상기 채널 측정 모듈은,
상기 제1 섹터에서 소거된 물리적 다운링크 공유 채널(physical downlink shared channel (PDSCH))의 하나 이상의 자원 요소에서의 수신된 신호 강도를 측정하여 수신 신호 강도 표시자(received signal strength indicator (RSSI))를 결정하고,
상기 피드백 모듈은 상기 RSSI를 상기 서빙 노드에 피드백하는
기지국 협력 통신 시스템에서 링크 적응을 위한 장치.
- 제14항 내지 제18항 중 어느 한 항에 있어서,
사용자 장비를 포함하는
기지국 협력 통신 시스템에서 링크 적응을 위한 장치.
- 기지국 협력 통신(coordinated multipoint (CoMP)) 측정 집단의 하나 이상의 협력 노드와 연관된 협력 노드 간섭 전력을 결정하는 단계와,
물리적 다운링크 공유 채널(physical downlink shared channel (PDSCH)) 상의 총 간섭 전력을 결정하는 단계와,
상기 협력 노드 간섭 전력 및 상기 총 간섭 전력에 기반하여 교정 계수를 결정하는 단계와,
상기 교정 계수 및 하나 이상의 리포트된 채널 품질 표시자(channel quality indicators (CQIs))에 근거하여 하나 이상의 조절된 CQI를 결정하는 단계를 포함하는
기지국 협력 통신 시스템에서 링크 적응을 위한 방법.
- 제20항에 있어서,
사용자 장비로부터 수신된 기준 신호 수신 전력(reference signal receive power (RSRP)) 리포트에 근거하여 협력 노드 간섭 전력을 결정하는 단계를 더 포함하며,
상기 협력 노드 간섭 전력을 결정하는 단계는 PDSCH의 순간 하중에 기반하는
기지국 협력 통신 시스템에서 링크 적응을 위한 방법.
- 제21항에 있어서,
하나 이상의 스케줄러로부터의 스케줄링 리포트에 기반하여 상기 PDSCH의 순간 하중을 결정하는 단계를 더 포함하는
기지국 협력 통신 시스템에서 링크 적응을 위한 방법.
- 제20항에 있어서,
상기 하나 이상의 CQI는 상기 CoMP 측정 집단의 서빙 노드와 연관된 제1 CQI 및 상기 CoMP 측정 집단의 협력 노드와 연관된 제2 CQI를 포함하는
기지국 협력 통신 시스템에서 링크 적응을 위한 방법.
- 하나 이상의 명령어를 갖는 컴퓨터 판독가능 매체로서,
상기 명령어는 실행될 때, 장치로 하여금 청구항 제20항 내지 제23항 중 어느 한 항의 방법을 구현하도록 하는
컴퓨터 판독가능 매체.
- 청구항 제20항 내지 제23항 중 어느 한 항의 방법을 구현하도록 구성된 기지국.
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- 2012-03-29 EP EP12844977.4A patent/EP2774440A4/en not_active Withdrawn
- 2012-03-29 IN IN3079CHN2014 patent/IN2014CN03079A/en unknown
- 2012-03-29 US US13/976,370 patent/US9398559B2/en active Active
- 2012-03-29 KR KR1020157011772A patent/KR20150055115A/ko not_active Withdrawn
- 2012-03-29 KR KR1020147012054A patent/KR101577245B1/ko not_active Expired - Fee Related
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IN2014CN03079A (ko) | 2015-07-03 |
JP5845545B2 (ja) | 2016-01-20 |
US9398559B2 (en) | 2016-07-19 |
CN103907389A (zh) | 2014-07-02 |
WO2013066204A1 (en) | 2013-05-10 |
KR20140072185A (ko) | 2014-06-12 |
CN103907389B (zh) | 2018-09-21 |
US20130336269A1 (en) | 2013-12-19 |
KR20150055115A (ko) | 2015-05-20 |
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