WO2014051323A1 - Interference measurement method and apparatus for use in distributed antenna system - Google Patents
Interference measurement method and apparatus for use in distributed antenna system Download PDFInfo
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- WO2014051323A1 WO2014051323A1 PCT/KR2013/008567 KR2013008567W WO2014051323A1 WO 2014051323 A1 WO2014051323 A1 WO 2014051323A1 KR 2013008567 W KR2013008567 W KR 2013008567W WO 2014051323 A1 WO2014051323 A1 WO 2014051323A1
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- interference measurement
- pdsch
- interference
- imr
- channel state
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/345—Interference values
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- 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
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
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- 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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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/0062—Avoidance of ingress interference, e.g. ham radio channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/0073—Allocation arrangements that take into account other cell interferences
-
- 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
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Transmission System (AREA)
Abstract
Description
Index | Radio channel measurement between TP and UE | Interference measurement | |
0 | CSI-RS | IMR A1 | |
1 | CSI-RS | IMR A2 | |
2 | CSI-RS B | IMR B1 | |
3 | CSI-RS B | IMR B2 |
Claims (30)
- A method for transmitting channel state information based on interference measurement of a terminal in a Distributed Antenna System (DAS), the method comprising:receiving configuration of Interference Measurement Resource (IMR) for measuring interferences caused by plural Transmission Points (TPs);receiving control information including scheduling information on Physical Downlink Shared Channel (PDSCH);determining whether IMR-based interference measurement and PDSCH reception occur at a same subframe; andtransmitting the channel state information generated according to a result of the determination.
- The method of claim 1, wherein the transmitting of the channel state information comprises generating, when the IMR-based interference measurement and PDSCH reception occur at the same subframe, the channel state information using a previous interference measurement result without performing interference measurement at the corresponding subframe.
- The method of claim 1, wherein the transmitting of the channel state information comprises:performing, when the IMR-based interference measurement and PDSCH reception occur at the same subframe, the interference measurement in a Resource Block (RB) in which the PDSCH is not received without performing the interference measurement in the RB in which the PDSCH is received at the corresponding subframe; andgenerating the channel state information based on a result of the interference measurement.
- The method of claim 1, wherein the transmitting of the channel state information comprises:performing, when the IMR-based interference measurement and PDSCH reception occur at the same subframe, the interference measurement by applying an Interference Adjustment Factor (IAR) in a Resource Block (RB) in which the PDSCH is received and interference measurement in the RB in which the PDSCH is not received at the corresponding subframe;generating the channel state information based on a result of the interference measurement.
- A method for a base station to assume a channel state information generation process in a Distributed Antenna System (DAS), the method comprising:configuring Interference Measurement Resource (IMR) for measuring interferences caused by plural Transmission Points (TPs);transmitting control information including scheduling information on Physical Downlink Shared Channel (PDSCH);determining whether IMR-based interference measurement and PDSCH reception occur at a same subframe; andassuming a channel state information generation process according to a result of the determination.
- The method of claim 5, wherein the assuming of the channel state information generation process comprises assuming, when the IMR-based interference measurement and PDSCH reception occur at the same subframe, that the terminal generates the channel state information using a previous interference measurement result without performing interference measurement at the corresponding subframe.
- The method of claim 5, wherein the assuming of the channel state information generation process comprises assuming, when the IMR-based interference measurement and PDSCH reception occur at the same subframe, that the UE performs the interference measurement in a Resource Block (RB) in which the PDSCH is not received without performing the interference measurement in the RB in which the PDSCH is received at the corresponding subframe and generates the channel state information based on a result of the interference measurement.
- The method of claim 5, wherein the assuming of the channel state information generation process comprises assuming, when the IMR-based interference measurement and PDSCH reception occur at the same subframe, that the UE performs the interference measurement by applying an Interference Adjustment Factor (IAR) in a Resource Block (RB) in which the PDSCH is received and interference measurement in the RB in which the PDSCH is not received at the corresponding subframe and generates the channel state information based on a result of the interference measurement.
- An apparatus for transmitting channel state information based on interference measurement of a terminal in a Distributed Antenna System (DAS), the apparatus comprising:a controller which controls receiving configuration of Interference Measurement Resource (IMR) for measuring interferences caused by plural Transmission Points (TPs) and control information including scheduling information on Physical Downlink Shared Channel (PDSCH), determining whether IMR-based interference measurement and PDSCH reception occur at a same subframe, and transmitting the channel state information generated according to a result of the determination.
- The apparatus of claim 9, wherein the controller controls generating, when the IMR-based interference measurement and PDSCH reception occur at the same subframe, the channel state information using a previous interference measurement result without performing interference measurement at the corresponding subframe.
- The apparatus of claim 9, wherein the controller controls performing, when the IMR-based interference measurement and PDSCH reception occur at the same subframe, the interference measurement in a Resource Block (RB) in which the PDSCH is not received without performing the interference measurement in the RB in which the PDSCH is received at the corresponding subframe and generating the channel state information based on a result of the interference measurement.
- The apparatus of claim 9, wherein the controller controls performing, when the IMR-based interference measurement and PDSCH reception occur at the same subframe, the interference measurement by applying an Interference Adjustment Factor (IAR) in a Resource Block (RB) in which the PDSCH is received and interference measurement in the RB in which the PDSCH is not received at the corresponding subframe and generating the channel state information based on a result of the interference measurement.
- An apparatus for a base station to assume a channel state information generation process of a base station in a Distributed Antenna System (DAS), the apparatus comprising:a controller which controls configuring Interference Measurement Resource (IMR) for measuring interferences caused by plural Transmission Points (TPs), transmitting control information including scheduling information on Physical Downlink Shared Channel (PDSCH), determining whether IMR-based interference measurement and PDSCH reception occur at a same subframe, and assuming a channel state information generation process according to a result of the determination.
- The apparatus of claim 13, wherein the controller controls assuming, when the IMR-based interference measurement and PDSCH reception occur at the same subframe, that the terminal generates the channel state information using a previous interference measurement result without performing interference measurement at the corresponding subframe.
- The apparatus of claim 13, wherein the controller controls assuming, when the IMR-based interference measurement and PDSCH reception occur at the same subframe, that the UE performs the interference measurement in a Resource Block (RB) in which the PDSCH is not received without performing the interference measurement in the RB in which the PDSCH is received at the corresponding subframe and generates the channel state information based on a result of the interference measurement.
- The apparatus of claim 13, wherein the controller controls assuming, when the IMR-based interference measurement and PDSCH reception occur at the same subframe, that the UE performs the interference measurement by applying an Interference Adjustment Factor (IAR) in a Resource Block (RB) in which the PDSCH is received and interference measurement in the RB in which the PDSCH is not received at the corresponding subframe and generates the channel state information based on a result of the interference measurement.
- A method for a base station to support interference measurement of a terminal in a Distributed Antenna System (DAS), the method comprising:determining whether Physical Downlink Shared Channel (PDSCH) exists in a certain Resource Block (RB); andtransmitting, when no PDSCH exists, an interference signal generated randomly from a neighbor base station to the terminal on an interference measurement resource.
- The method of claim 17, further comprising transmitting, when PDSCH exists in a certain RB, transmitting the RB including the PDSCH.
- The method of claim 17, further comprising, acquiring information on the interference measurement resource which the neighbor base station has configured to the terminal.
- The method of claim 17, wherein the interference measurement resource is configured to the terminal to measure interference from a plurality of Transmission Points (TPs).
- A base station supporting interference measurement of a terminal in a Distributed Antenna System (DAS), the base station comprises:a transceiver which transmits and receives data; anda controller which determines whether Physical Downlink Shared Channel (PDSCH) exists in a certain Resource Block (RB) and controls, when no PDSCH exists, the transceiver to transmit an interference signal generated randomly from a neighbor base station to the terminal on an interference measurement resource.
- The base station of claim 21, wherein the controller controls, when PDSCH exists in a certain RB, the transceiver to transmit the RB including the PDSCH.
- The base station of claim 21, wherein the controller acquires information on the interference measurement resource which the neighbor base station has configured to the terminal.
- The base station of claim 21, wherein the interference measurement resource is configured to the terminal to measure interference from a plurality of Transmission Points (TPs).
- An interference measurement method of a terminal in a Distributed Antenna System (DAS), the method comprising:receiving configuration information on interference measurement resource;performing interference measurement on the interference measurement resource according to the configuration information; andtransmitting interference measurement result,wherein the interference measurement resource includes, when no Physical Downlink Shared Channel (PDSCH) exists in a certain Resource Block (RB) of a neighbor base station, and interference signal predicted to be transmitted by the neighbor base station.
- The method of claim 25, wherein the interference measurement resource includes, when PDSCH exists in a certain RB, the PDSCH transmitted by the neighbor base station.
- The method of claim 25, wherein the interference measurement resource is configured to measure interference from a plurality of Transmission Points (TPs).
- A terminal for measuring interference in a Distributed Antenna System (DAS), the terminal comprising:a transceiver which transmits and receives data; anda controller which controls the transceivers to receive configuration information on interference measurement resource, performs interference measurement on the interference measurement resource according to the configuration information, and transmit interference measurement result,wherein the interference measurement resource includes, when no Physical Downlink Shared Channel (PDSCH) exists in a certain Resource Block (RB) of a neighbor base station, and interference signal predicted to be transmitted by the neighbor base station.
- The terminal of claim 28, wherein the interference measurement resource includes, when PDSCH exists in a certain RB, the PDSCH transmitted by the neighbor base station.
- The terminal of claim 28, wherein the interference measurement resource is configured to measure interference from a plurality of Transmission Points (TPs).
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015532978A JP2015536069A (en) | 2012-09-25 | 2013-09-25 | Method and apparatus for measuring interference in distributed antenna system |
EP18203822.4A EP3468058B1 (en) | 2012-09-25 | 2013-09-25 | Interference measurement method and apparatus for use in distributed antenna system |
EP13842013.8A EP2901570A4 (en) | 2012-09-25 | 2013-09-25 | Interference measurement method and apparatus for use in distributed antenna system |
RU2015110508A RU2660935C2 (en) | 2012-09-25 | 2013-09-25 | Interference measurement method and apparatus for use in distributed antenna system |
AU2013320765A AU2013320765B2 (en) | 2012-09-25 | 2013-09-25 | Interference measurement method and apparatus for use in distributed antenna system |
CN201380050080.5A CN104662813B (en) | 2012-09-25 | 2013-09-25 | For the interference detecting method and device of distributing antenna system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020120106745A KR101909043B1 (en) | 2012-09-25 | 2012-09-25 | Method and apparatus for interference measurement in distrubuted antenna system |
KR10-2012-0106745 | 2012-09-25 |
Publications (1)
Publication Number | Publication Date |
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WO2014051323A1 true WO2014051323A1 (en) | 2014-04-03 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/KR2013/008567 WO2014051323A1 (en) | 2012-09-25 | 2013-09-25 | Interference measurement method and apparatus for use in distributed antenna system |
Country Status (8)
Country | Link |
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US (1) | US9510225B2 (en) |
EP (2) | EP3468058B1 (en) |
JP (2) | JP2015536069A (en) |
KR (1) | KR101909043B1 (en) |
CN (1) | CN104662813B (en) |
AU (1) | AU2013320765B2 (en) |
RU (1) | RU2660935C2 (en) |
WO (1) | WO2014051323A1 (en) |
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Also Published As
Publication number | Publication date |
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KR20140039905A (en) | 2014-04-02 |
CN104662813B (en) | 2018-06-08 |
US9510225B2 (en) | 2016-11-29 |
EP2901570A4 (en) | 2016-07-06 |
AU2013320765B2 (en) | 2017-09-07 |
RU2015110508A (en) | 2016-10-10 |
KR101909043B1 (en) | 2018-10-17 |
EP2901570A1 (en) | 2015-08-05 |
RU2660935C2 (en) | 2018-07-11 |
JP2018129807A (en) | 2018-08-16 |
JP2015536069A (en) | 2015-12-17 |
EP3468058B1 (en) | 2020-02-26 |
CN104662813A (en) | 2015-05-27 |
JP6530524B2 (en) | 2019-06-12 |
EP3468058A1 (en) | 2019-04-10 |
AU2013320765A1 (en) | 2015-02-19 |
US20140086082A1 (en) | 2014-03-27 |
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