WO2011074885A2 - 무선 통신 시스템에서 채널 품질 보고 방법 및 장치 - Google Patents
무선 통신 시스템에서 채널 품질 보고 방법 및 장치 Download PDFInfo
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- WO2011074885A2 WO2011074885A2 PCT/KR2010/009002 KR2010009002W WO2011074885A2 WO 2011074885 A2 WO2011074885 A2 WO 2011074885A2 KR 2010009002 W KR2010009002 W KR 2010009002W WO 2011074885 A2 WO2011074885 A2 WO 2011074885A2
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000004891 communication Methods 0.000 title claims abstract description 15
- 239000000969 carrier Substances 0.000 claims abstract description 8
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- 101000741965 Homo sapiens Inactive tyrosine-protein kinase PRAG1 Proteins 0.000 description 3
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- 238000012544 monitoring process Methods 0.000 description 3
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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
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
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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
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
-
- 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
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0057—Physical resource allocation for CQI
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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
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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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
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
- H04W72/231—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the layers above the physical layer, e.g. RRC or MAC-CE signalling
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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
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0027—Scheduling of signalling, e.g. occurrence thereof
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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
- 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
Definitions
- the present invention relates to wireless communication, and more particularly, to a method and apparatus for reporting channel quality in a wireless communication system.
- Knowing the channel quality is essential to increase the efficiency of a wireless communication system.
- the quality of the downlink channel is informed by the terminal to the base station, and an indicator indicating the channel quality is called a channel quality indicator (CQI) or a channel state indicator (CSI).
- CQI channel quality indicator
- CSI channel state indicator
- CQI is a quantized value of a channel state (eg, Signal to Interference-plus-Noise Ratio (SINR), Carrier to Interference and Noise Ratio (CINR), Bit Error Rate (BER), Frame Error Rate (FER)), or MCS (Modulation and Coding Scheme) can be represented as MCS index in the table.
- SINR Signal to Interference-plus-Noise Ratio
- CINR Carrier to Interference and Noise Ratio
- BER Bit Error Rate
- FER Frame Error Rate
- MCS Modulation and Coding Scheme
- 3GPP 3rd Generation Partnership Project
- TS Technical Specification
- LTE long term evolution
- the bandwidth between the uplink and the downlink is configured differently, only one component carrier is considered.
- 3GPP LTE based on a single carrier, the number of carriers constituting the uplink and the downlink is one each, and the bandwidth of the uplink and the downlink are generally symmetrical.
- 3GPP LTE is designed to report channel quality based on a single component carrier.
- a technique for reporting channel quality in a multi-carrier system is required.
- An object of the present invention is to provide a method and apparatus for reporting channel quality in a wireless communication system.
- the uplink grant may further include a carrier indicator field (CIF) indicating the uplink CC on which the uplink allocation is scheduled.
- CIF carrier indicator field
- FIG. 6 is a diagram for describing an operation according to an embodiment of the present invention.
- Each base station provides communication services for a particular geographic area (commonly called a cell).
- the cell can in turn be divided into a number of regions (called sectors).
- E-UTRA Evolved Universal Terrestrial Radio Access
- R-UTRA Physical Channels and Modulation
- a resource block is a resource allocation unit and includes a plurality of subcarriers in one slot. For example, if one slot includes 7 OFDM symbols in the time domain and the resource block includes 12 subcarriers in the frequency domain, one resource block includes 7 ⁇ 12 resource elements (REs). It may include.
- the DL (downlink) subframe is divided into a control region and a data region in the time domain.
- the control region includes up to three OFDM symbols preceding the first slot in the subframe, but the number of OFDM symbols included in the control region may be changed.
- PDCCH and other control channels are allocated to the control region, and PDSCH is allocated to the data region.
- DCI downlink control information
- PDSCH also called DL grant
- PUSCH resource allocation also called UL grant
- VoIP Voice over Internet Protocol
- a plurality of candidate PDCCHs may be transmitted in the control region of one subframe.
- the UE monitors the plurality of candidate PDCCHs every subframe.
- monitoring means that the UE attempts to decode each of the PDCCHs according to the monitored PDCCH format.
- the UE finds its own PDCCH by monitoring a set of PDCCH candidates in a subframe. For example, if a cyclic redundancy check (CRC) error is not detected by demasking a terminal identifier (ie, a C-RNTI (Cell-Radio Network Temporary Identifier)) in a corresponding PDCCH, the terminal detects its DCI. It detects by having PDCCH.
- CRC cyclic redundancy check
- the terminal In order to receive DL data, the terminal first receives a DL grant on the PDCCH. A DL grant is used to receive DL data on the PDSCH. In addition, in order to transmit the UL data, the terminal first receives the UL grant on the PDCCH. UL data is transmitted on the PUSCH using the UL grant.
- the Physical Broadcast Channel (PBCH) is transmitted in the preceding four OFDM symbols of the second slot of the first subframe of the radio frame.
- the PBCH carries system information necessary for the terminal to communicate with the base station, and the system information transmitted through the PBCH is called a master information block (MIB).
- MIB master information block
- SIB system information block
- the base station sends a CQI request 201 on the PDCCH in the DL subframe.
- the CQI request 201 is included in DCI format 0 or random access response.
- DCI format 0 is used for transmission of the UL grant.
- the UL grant further includes UL resource allocation for the PUSCH.
- the CQI request 201 indicates whether to trigger the CQI report in a 1-bit field. For example, when the value of the CQI request 201 is set to '1', the base station requests the CQI report from the terminal.
- the terminal sends the CQI 20 to the base station on the PUSCH.
- CQI feedback wideband, UE selected and higher layer-configured.
- PMI feedback types No PMI, Single PMI, and Multiple PMI.
- the transmission mode is divided according to the CQI feedback type and the PMI feedback type as shown in the following table.
- the PMI is selected under the assumption that data is transmitted in each subband.
- the UE determines the CQI by assuming a PMI selected for the entire system band (which is referred to as set S) designated by the system band or higher layer.
- the UE transmits CQI and PMI of each subband. Since the CQIs of the subbands or the entire bands included in the set S are transmitted, it is called a wideband CQI.
- the size of each subvan may vary depending on the size of the system band.
- the UE selects M (M> 0) subbands preferred in the system band or the set S.
- the UE determines CQIs for the selected M subbands (this is called a subband CQI). Additionally, the terminal further determines the wideband CQI for the system band or set S.
- the terminal transmits the selected M subbands, one CQI for the selected M subbands, and a wideband CQI.
- Mode 2-2 determines a single PMI for M preferred subbands and M preferred subbands. Additionally, the terminal further determines the wideband CQI for the system band or set S. The UE transmits the selected M subbands, one CQI for the selected M subbands, a single PMI for the selected M subbands, and a wideband CQI.
- the terminal determines the wideband CQI.
- the terminal determines the CQI for each subband.
- the terminal determines a single PMI for the system band or set S.
- the UE determines the subband CQI and the wideband CQI for each subband assuming the single PMI.
- uplink power control is used in a wireless communication system.
- the base station increases uplink power when the channel environment is not good, and lowers uplink transmission power when the channel environment is good. To reduce interference to neighboring cells due to excessive transmit power and to optimize power usage as much as possible.
- a transmission power command is used for uplink transmission power control, and transmission power is independently controlled for each of PUCCH and PUSCH.
- the TPC for the PUCCH used for transmission of the HARQ ACK / NACK signal is included in the DL grant.
- the TPC for the PUSCH is included in the UL grant.
- CCs component carriers
- Spectrum aggregation supports a plurality of CCs.
- Spectral aggregation is introduced to support increased throughput, to prevent cost increases due to the introduction of wideband radio frequency (RF) devices, and to ensure compatibility with existing systems. For example, if five CCs are allocated as granularity in a carrier unit having a 20 MHz bandwidth, a bandwidth of up to 100 MHz may be supported.
- RF radio frequency
- FIG. 3 shows an example of a multi-carrier. Although there are three DL CCs and three UL CCs, the number of DL CCs and UL CCs is not limited. PDCCH and PDSCH are independently transmitted in each DL CC, and PUCCH and PUSCH are independently transmitted in each UL CC.
- the multi-carrier system supports a plurality of CCs, the number of CCs supported may vary according to the capability of a cell or a terminal.
- Available CC refers to all CCs available to the system. Here, there are six CCs from CC # 0 to CC # 5.
- the assigned CC is a CC assigned by the base station to the terminal according to the capability of the terminal among the available CCs. Although CC # 0 to CC # 3 are assigned CCs, the number of allocated CCs may be smaller than or equal to the number of available CCs.
- a CC linkage between a DL CC and an UL CC may be defined.
- the CC linkage refers to a mapping relationship between a DL CC on which a PDCCH carrying an UL grant is transmitted and an UL CC scheduled by the UL grant.
- the CC linkage may be a mapping relationship between a DL CC (or UL CC) in which data for HARQ is transmitted and a UL CC (or DL CC) in which HARQ ACK / NACK signal is transmitted.
- the CC linkage may be a relationship between a DL CC that is a CQI report target and a UL CC for transmitting the CQI.
- FIG. 3 shows a symmetricic CC linkage in which a DL CC and a UL CC are mapped 1: 1.
- the CC linkage can be configured as a static CC linkage and a dynamic CC linkage setting as follows.
- the CC linkage is fixed. This is called a fixed CC linkage or a static CC linkage. This may be signaled as system information that is public information. Since the UL CC scheduled by the UL grant can be determined through the static CC linkage, signaling for linkage configuration between a separate UL CC and a DL CC transmitted for each UE is unnecessary.
- the second is that the CC linkage is dynamically or semi-statically changed or overridden. This is called dynamic CC linkage. This may be informed by the base station to the terminal through a Radio Resource Control (RRC) message or L1 / L2 signaling.
- RRC Radio Resource Control
- the dynamic CC linkage may be UE-specific (which may be CC specific or CC common), UE group-specific or cell-specific, and may be 1: 1 correspondence or 1: M or M: 1 correspondence. .
- CC scheduling is possible in two ways.
- the first is to utilize a fixed CC linkage.
- a UL grant is transmitted on a DL CC, and a UL transport block is transmitted using the UL grant on a UL CC linked to the DL CC according to a static CC linkage. Since the UL CC scheduled by the UL grant can be determined through the CC linkage already defined, no separate signaling is required.
- the DCI of the PDCCH may include a carrier indicator field (CIF).
- CIF indicates a DL CC or UL CC scheduled through DCI.
- the CIF may include an index of the DL CC or an index of the UL CC scheduled through the DCI.
- the second PDCCH 711 may include a CIF indicating the DL CC # 1.
- the third PDCCH 721 may include a CIF indicating the UL CC # 2.
- the third PDCCH 721 transmitted on DL CC # 0 carries a UL grant for scheduling UL CC # 2.
- UL CC # 2 is linked with DL CC # 2.
- a CQI request is included in a UL grant, whether the CQI request is a CQI for one DL CC or a CQI for a DL CC group (or an entire CC) or which target DL CC is the one (s). It may be unclear.
- this CQI request is linked to UL CC # 2 where the CQI report is requested for DL CC # 0 where the third PDCCH 721 is transmitted or UL grant is scheduled. It may be unclear whether to request a CQI report for the DL CC # 2.
- FIG. 6 is a diagram for describing an operation according to an embodiment of the present invention.
- the static CC linkage may inform the base station as part of the system information (MIB or SIB).
- the CQI report is not generated. If the value of the CQI request is 0, the CQI report is not generated. If the value of the CQI request is 1, the CQI report is generated.
- the value of CIF is set to 7, which indicates a dynamic CC linkage.
- the UL CC to which the UL grant is scheduled may be predefined.
- the value of CIF is 7, it is referred to UL CC # 0.
- the CIF value indicating the dynamic CC linkage is merely an example and may be designated as any specific value.
- the UL CC scheduled by the UL grant may be a UL CC defined by a higher layer message such as an RRC message or a UL CC predefined to transmit a control signal.
- Which type of dynamic CC linkage is used may inform the base station through the RRC message to the terminal. If the dynamic CC linkage type (4) is used, the base station can inform the UE of the DL CC group for which the CQI is to be reported through the RRC message.
- One or more dynamic CC linkages may be used.
- the CIF value is 6, it may indicate a dynamic CC linkage type (1), and if the CIF value is 7, it may indicate a dynamic CC linkage type (4).
- multiple dynamic CC linkage types (4) can be specified, and each can be specified through CIF. For example, if the CIF value is 6, it indicates DL CC # 0 and # 1, and if the CIF value is 7, it indicates DL CC # 2 to # 4.
- the DCI of the second PDCCH 811 of the DL CC # 2 includes a DL grant for the DL CC # 3.
- the DL grant includes DL resource allocation 812, CIF, and TPC.
- CIF is set to 3 which is an index of DL CC # 3.
- the TPC may be a TPC for UL CC # 3 linked to DL CC # 3.
- the TPC may be a TPC for UL CC # 2 linked to DL CC # 2 on which the second PDCCH 811 is transmitted.
- the TPC may be included in the UL grant.
- the TPC may be a TPC for the UL CC indicated by the CIF.
- the TPC may be a TPC for the UL CC linked to the DL CC through which the UL grant is transmitted.
- the dynamic CC linkage is not set by a specific value of the CIF, but may be predefined by an RRC message or the like. If the CQI request is 0, the UE does not send the CQI report. If the CQI request is 1, the UE may send the CQI report according to the dynamic CC linkage set by the RRC message.
- the above example considers when the CQI request is 1 bit, but may be more variously represented when the number of bits of the CQI request is increased.
- the following table shows the configuration according to each value when the CQI request is 2 bits.
- CQI request value Contents 0 Do not report CQI One Report CQI based on static CC linkage 2 Report CQI according to the first dynamic CC linkage 3 Report CQI according to the second dynamic CC linkage
- the UE reports the CQI according to the static CC linkage. For example, a terminal receiving a UL grant for UL CC # 1 reports a CQI for a DL CC linked to UL CC # 1. If the value of the CQI request is 2 or 3, the terminal reports the CQI according to the previously defined first or second dynamic CC linkage.
- the first and second dynamic CC linkages may be set by an RRC message.
- FIG. 7 is a flowchart illustrating a CQI reporting method according to an embodiment of the present invention.
- the terminal receives the first CC linkage from the base station (S910).
- the first CC linkage may be received as part of system information and may be referred to as a static CC linkage.
- the terminal receives a second CC linkage to the base station (S920).
- the second CC linkage may be received through an RRC message and may be referred to as a dynamic CC linkage.
- the terminal receives a UL grant including a CQI request from the base station (S930).
- the CQI request may be configured as shown in Table 3.
- the UE determines a DL CC for which the CQI is to be reported according to the CQI request (S940). For example, if the value of the CQI request is 3, the UE may determine the linked DL CC based on the second CC linkage, that is, the dynamic CC linkage. Alternatively, if the value of the CQI request is 2, the UE may determine the linked DL CC based on the first CC linkage, that is, the static CC linkage. Determining the DL CC according to the dynamic CC linkage and the static CC linkage is described in the embodiment of FIG. 6.
- the terminal reports the determined CQI for the DL CC to the base station (S950).
- FIG. 8 is a block diagram illustrating a wireless communication system in which an embodiment of the present invention is implemented.
- the base station 50 includes a processor 51, a memory 52, and an RF unit 53.
- the memory 52 is connected to the processor 51 and stores various information for driving the processor 51.
- the RF unit 53 is connected to the processor 51 and transmits and / or receives a radio signal.
- the processor 51 implements the proposed functions, processes and / or methods. 6 and 7 operation of the base station 60 may be implemented by the processor 51.
- the terminal 60 includes a processor 61, a memory 62, and an RF unit 63.
- the memory 62 is connected to the processor 61 and stores various information for driving the processor 61.
- the RF unit 63 is connected to the processor 61 and transmits and / or receives a radio signal.
- the processor 61 implements the proposed functions, processes and / or methods. 6 and 7, the operation of the terminal 60 may be implemented by the processor 61.
- the processor may include application-specific integrated circuits (ASICs), other chipsets, logic circuits, and / or data processing devices.
- the memory may include read-only memory (ROM), random access memory (RAM), flash memory, memory card, storage medium and / or other storage device.
- the RF unit may include a baseband circuit for processing a radio signal.
- the above-described technique may be implemented as a module (process, function, etc.) for performing the above-described function.
- the module may be stored in memory and executed by a processor.
- the memory may be internal or external to the processor and may be coupled to the processor by various well known means.
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Abstract
Description
No PMI | Single PMI | Multiple PMI | |
Wideband(wideband CQI) | Mode 1-2 | ||
UE selected (subband CQI) | Mode 2-0 | Mode 2-2 | |
Higherlayer-configured(subband CQI) | Mode 3-0 | Mode 3-1 |
CIF 값 | 내 용 |
0 | UL CC 인덱스 0 |
1 | UL CC 인덱스 1 |
2 | UL CC 인덱스 2 |
3 | UL CC 인덱스 3 |
4 | UL CC 인덱스 4 |
5 | reserved |
6 | reserved |
7 | UL CC 인덱스 0,동적 CC 링키지 |
CQI 요청 값 | 내 용 |
0 | CQI 보고 안함 |
1 | 정적 CC 링키지에 따라 CQI 보고 |
2 | 제1 동적 CC 링키지에 따라 CQI 보고 |
3 | 제2 동적 CC 링키지에 따라 CQI 보고 |
Claims (15)
- 무선 통신 시스템에서 채널 품질 보고 방법에 있어서,기지국으로부터 복수의 하향링크 CC(componet carrier) 중 하나를 통해 상향링크 그랜트를 수신하되, 상기 상향링크 그랜트는 상향링크 할당과 CQI 보고의 발생을 지시하는 CQI(channel quality indicator) 요청을 포함하고, 및상기 기지국으로 링크된 하향링크 CC의 CQI를 보고하는 것을 포함하되,상기 링크된 하향링크 CC는 상기 복수의 하향링크 CC 중 상기 상향링크 할당이 스케줄링되는 상향링크 CC에 링크된 하향링크 CC인 것을 특징으로 하는 채널 품질 보고 방법.
- 제 1 항에 있어서, 상기 상향링크 그랜트는 상기 상향링크 할당이 스케줄링되는 상기 상향링크 CC을 가리키는 CIF(carrier indicator field)를 더 포함하는 것을 특징으로 하는 채널 품질 보고 방법.
- 제 1 항에 있어서,상기 기지국으로부터 적어도 하나의 상향링크 CC와 상기 복수의 하향링크 CC 간의 제1 CC 링키지를 시스템 정보를 통해 수신하는 것을 더 포함하고,상기 상향링크 할당이 스케줄링되는 상기 상향링크 CC는 상기 제1 CC 링키지에 따라 결정되는 것을 특징으로 하는 채널 품질 보고 방법.
- 제 3 항에 있어서, 상기 CQI 요청은 상기 CQI 보고의 발생과 상기 제1 CC 링키지를 지시하는 것을 특징으로 하는 채널 품질 보고 방법.
- 제 1 항에 있어서,상기 기지국으로부터 적어도 하나의 상향링크 CC와 상기 복수의 하향링크 CC 간의 제2 CC 링키지를 RRC(Radio Resource Control) 메시지를 통해 수신하는 것을 더 포함하고,상기 상향링크 할당이 스케줄링되는 상기 상향링크 CC는 상기 제2 CC 링키지에 따라 결정되는 것을 특징으로 하는 채널 품질 보고 방법.
- 제 5 항에 있어서, 상기 CQI 요청은 상기 CQI 보고의 발생과 상기 제2 CC 링키지를 지시하는 것을 특징으로 하는 채널 품질 보고 방법.
- 제 6 항에 있어서, 상기 제2 CC 링키지는 상기 복수의 하향링크 CC 중 상기 CQI가 보고되는 하향링크 CC의 리스트를 포함하는 것을 특징으로 하는 채널 품질 보고 방법.
- 제 6 항에 있어서, 상기 제2 CC 링키지는 상기 복수의 하향링크 CC 중 상기 CQI가 보고되는 모든 활성 하향링크 CC를 지시하는 것을 특징으로 하는 채널 품질 보고 방법.
- 무선 통신 시스템에서 채널 품질을 보고하는 장치에 있어서,무선 신호를 송신 및 수신하는 RF(radio frequency)부; 및상기 RF부와 연결되는 프로세서를 포함하되, 상기 프로세서는기지국으로부터 복수의 하향링크 CC(componet carrier) 중 하나를 통해 상향링크 그랜트를 수신하되, 상기 상향링크 그랜트는 상향링크 할당과 CQI 보고의 발생을 지시하는 CQI(channel quality indicator) 요청을 포함하고, 및상기 기지국으로 링크된 하향링크 CC의 CQI를 보고하되,상기 링크된 하향링크 CC는 상기 복수의 하향링크 CC 중 상기 상향링크 할당이 스케줄링되는 상향링크 CC에 링크된 하향링크 CC인 것을 특징으로 하는 장치.
- 제 9 항에 있어서, 상기 상향링크 그랜트는 상기 상향링크 할당이 스케줄링되는 상기 상향링크 CC을 가리키는 CIF(carrier indicator field)를 더 포함하는 것을 특징으로 하는 장치.
- 제 9 항에 있어서,상기 프로세서는 상기 기지국으로부터 적어도 하나의 상향링크 CC와 상기 복수의 하향링크 CC 간의 제1 CC 링키지를 시스템 정보를 통해 수신하고,상기 상향링크 할당이 스케줄링되는 상기 상향링크 CC는 상기 제1 CC 링키지에 따라 결정되는 것을 특징으로 하는 장치.
- 제 11 항에 있어서, 상기 CQI 요청은 상기 CQI 보고의 발생과 상기 제1 CC 링키지를 지시하는 것을 특징으로 하는 장치.
- 제 9 항에 있어서,상기 프로세서는 상기 기지국으로부터 적어도 하나의 상향링크 CC와 상기 복수의 하향링크 CC 간의 제2 CC 링키지를 RRC(Radio Resource Control) 메시지를 통해 수신하고,상기 상향링크 할당이 스케줄링되는 상기 상향링크 CC는 상기 제2 CC 링키지에 따라 결정되는 것을 특징으로 하는 장치.
- 제 13 항에 있어서, 상기 CQI 요청은 상기 CQI 보고의 발생과 상기 제2 CC 링키지를 지시하는 것을 특징으로 하는 장치.
- 제 14 항에 있어서, 상기 제2 CC 링키지는 상기 복수의 하향링크 CC 중 상기 CQI가 보고되는 하향링크 CC의 리스트를 포함하는 것을 특징으로 하는 장치.
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US16/121,119 USRE48709E1 (en) | 2009-12-16 | 2010-12-16 | Method and apparatus for reporting a channel quality in a wireless communication system |
KR1020127017893A KR101369034B1 (ko) | 2009-12-16 | 2010-12-16 | 무선 통신 시스템에서 채널 품질 보고 방법 및 장치 |
US15/015,975 USRE47091E1 (en) | 2009-12-16 | 2010-12-16 | Method and apparatus for reporting a channel quality in a wireless communication system |
CN201080063655.3A CN102763449B (zh) | 2009-12-16 | 2010-12-16 | 在无线通信系统中报告信道质量的方法和装置 |
US13/516,950 US8644182B2 (en) | 2009-12-16 | 2010-12-16 | Method and apparatus for reporting a channel quality in a wireless communication system |
US15/015,707 USRE47039E1 (en) | 2009-12-16 | 2010-12-16 | Method and apparatus for reporting a channel quality in a wireless communication system |
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CN105721109B (zh) | 2019-05-14 |
EP2515574A2 (en) | 2012-10-24 |
US8644182B2 (en) | 2014-02-04 |
EP2515574B1 (en) | 2018-05-02 |
JP2013514713A (ja) | 2013-04-25 |
CN102763449A (zh) | 2012-10-31 |
USRE47091E1 (en) | 2018-10-16 |
EP2515574A4 (en) | 2016-10-19 |
WO2011074885A3 (ko) | 2011-11-10 |
USRE47039E1 (en) | 2018-09-11 |
KR20120106796A (ko) | 2012-09-26 |
KR101369034B1 (ko) | 2014-02-28 |
CN102763449B (zh) | 2016-03-09 |
JP5456910B2 (ja) | 2014-04-02 |
US20120269153A1 (en) | 2012-10-25 |
CN105721109A (zh) | 2016-06-29 |
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