WO2011074865A3 - 이종(heterogeneous) 셀 간에 간섭을 제거하기 위한 방법 및 장치 - Google Patents

이종(heterogeneous) 셀 간에 간섭을 제거하기 위한 방법 및 장치 Download PDF

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Publication number
WO2011074865A3
WO2011074865A3 PCT/KR2010/008960 KR2010008960W WO2011074865A3 WO 2011074865 A3 WO2011074865 A3 WO 2011074865A3 KR 2010008960 W KR2010008960 W KR 2010008960W WO 2011074865 A3 WO2011074865 A3 WO 2011074865A3
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WO
WIPO (PCT)
Prior art keywords
base station
cell interference
heterogeneous cell
interference coordination
removing inter
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PCT/KR2010/008960
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English (en)
French (fr)
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WO2011074865A2 (ko
Inventor
김형태
서한별
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엘지전자 주식회사
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Priority to KR1020127018446A priority Critical patent/KR101707870B1/ko
Priority to US13/516,072 priority patent/US9392609B2/en
Publication of WO2011074865A2 publication Critical patent/WO2011074865A2/ko
Publication of WO2011074865A3 publication Critical patent/WO2011074865A3/ko

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/32—Hierarchical cell structures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04—Large scale networks; Deep hierarchical networks
    • H04W84/042—Public Land Mobile systems, e.g. cellular systems
    • H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

이종(heterogeneous) 셀 간에 간섭을 제거하기 위한 방법 및 장치가 개시된다. 이종(heterogeneous) 셀 간의 간섭 제거 동작을 수행하는 단말 장치는 서빙 기지국인 제 1 기지국으로부터 이종 셀 간의 간섭 협력을 위해 필요한 간섭 협력 정보(coordination information)를 상기 제 1 기지국에 대해 이종 기지국에 해당하는 제 2 기지국에 요청할 것을 지시하는 신호를 수신하는 수신기; 물리 임의접속 채널(Physical Random Access Channel, PRACH)를 통해 상기 요청을 알리는 사전에 정의된 PRACH 프리앰블을 상기 제 2 기지국으로 전송하는 송신기; 상기 제 2 기지국으로부터 상기 간섭 협력 정보를 수신하는 수신기; 및 상기 수신한 간섭 협력 정보를 상기 제 1 기지국으로 전송하는 송신기를 포함할 수 있다.
PCT/KR2010/008960 2009-12-15 2010-12-15 이종(heterogeneous) 셀 간에 간섭을 제거하기 위한 방법 및 장치 WO2011074865A2 (ko)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020127018446A KR101707870B1 (ko) 2009-12-15 2010-12-15 이종(ｈｅｔｅｒｏｇｅｎｅｏｕｓ) 셀 간에 간섭을 제거하기 위한 방법 및 장치
US13/516,072 US9392609B2 (en) 2009-12-15 2010-12-15 Method and apparatus for removing inter-heterogeneous cell interference

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US28639109P 2009-12-15 2009-12-15
US61/286,391 2009-12-15
US29249310P 2010-01-06 2010-01-06
US61/292,493 2010-01-06
US31222910P 2010-03-09 2010-03-09
US61/312,229 2010-03-09

Publications (2)

Publication Number Publication Date
WO2011074865A2 WO2011074865A2 (ko) 2011-06-23
WO2011074865A3 true WO2011074865A3 (ko) 2011-10-20

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US (1) US9392609B2 (ko)
KR (1) KR101707870B1 (ko)
WO (1) WO2011074865A2 (ko)

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Also Published As

Publication number Publication date
WO2011074865A2 (ko) 2011-06-23
US20120258724A1 (en) 2012-10-11
KR101707870B1 (ko) 2017-02-17
US9392609B2 (en) 2016-07-12
KR20120112567A (ko) 2012-10-11

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