WO2013166657A1 - 参考信号的测量方法、基站及用户设备 - Google Patents
参考信号的测量方法、基站及用户设备 Download PDFInfo
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- WO2013166657A1 WO2013166657A1 PCT/CN2012/075189 CN2012075189W WO2013166657A1 WO 2013166657 A1 WO2013166657 A1 WO 2013166657A1 CN 2012075189 W CN2012075189 W CN 2012075189W WO 2013166657 A1 WO2013166657 A1 WO 2013166657A1
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- WIPO (PCT)
- Prior art keywords
- base station
- user equipment
- measurement
- csi
- reference signal
- Prior art date
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- 238000000691 measurement method Methods 0.000 title claims abstract description 48
- 238000005259 measurement Methods 0.000 claims abstract description 173
- 238000012545 processing Methods 0.000 claims abstract description 56
- 238000000034 method Methods 0.000 claims description 45
- 238000010586 diagram Methods 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Classifications
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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
- H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
-
- 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]
-
- 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
-
- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- 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
Definitions
- the present invention relates to the field of communications, and in particular, to a method for measuring a reference signal, a base station, and a user equipment.
- LTE-A LTE-Advanced
- LTE-A enhanced long-term evolution
- Pico-cell hotspot coverage cell
- FIG. 1 is a schematic diagram of a scenario in which a macro cell and a micro cell coexist in a heterogeneous network.
- a macro base station Mocro eNB
- a micro base station for example, a Pico eNB, but not limited thereto
- a micro user equipment for example, a Pico UE
- the Pico cell uses the coverage extension technology, the downlink transmission of the Macro base station may cause strong interference to the downlink transmission of the Pico; the user equipment of the cell range extension area (CRE) of the Pico cell will be greatly interfered by the Macro cell.
- CRE cell range extension area
- the macro base station can configure certain subframes into Almost Blank Subframes (ABS).
- ABS Almost Blank Subframes
- in addition to common reference symbols and necessary few control channels, etc. are used.
- low power transmission is used at other physical resource locations or some resources are vacated without transmitting power.
- the inventors have found that in the current almost empty subframe scheme, when the reference signal is measured, the base station side cannot know whether the interference cancellation processing is performed on the user equipment side, and thus the base station side cannot accurately obtain the measurement result of the reference signal.
- the embodiment of the present invention provides a method for measuring a reference signal, a base station, and a user equipment.
- the purpose is to enable the base station side to know whether the user equipment side performs interference cancellation processing, thereby accurately obtaining the measurement result of the reference signal.
- a method for measuring a reference signal includes:
- the base station receives a radio resource management measurement result sent by the user equipment.
- a method for measuring a reference signal includes:
- the user equipment When the user equipment performs radio resource management measurement on the reference signal, the user equipment selects whether to use the interference cancellation process;
- the radio resource management measurement result is transmitted to the base station, and the indication information indicating whether the interference cancellation processing is performed is performed.
- a method for measuring a reference signal includes:
- the base station sends, to the user equipment, a plurality of indication information for indicating whether to perform interference cancellation processing on the reference signal, when the channel state information measurement configuration is performed on the user equipment, where the multiple indication information corresponds to the configured multiple sub-subjects Frame set
- the base station receives a channel state information measurement result sent by the user equipment.
- a method for measuring a reference signal includes:
- the user equipment receives an available almost empty subframe set sent by the base station;
- the user equipment sends a channel state information measurement result to the base station.
- a method for measuring a reference signal includes:
- the base station receives a channel state information measurement result sent by the user equipment.
- a base station includes: an information sending unit, configured to send, to the user equipment, whether to indicate whether the network device is configured to perform radio resource management measurement configuration on the user equipment Indicating information that the reference signal performs interference cancellation processing;
- the result receiving unit receives the radio resource management measurement result sent by the user equipment.
- a user equipment is provided, where the user equipment includes:
- a signal measuring unit configured to select whether to use interference cancellation processing when performing radio resource management measurement on the reference signal
- a result sending unit configured to send the radio resource management measurement result to the base station, and the indication information used to indicate whether the interference cancellation process is performed.
- a base station includes: an information sending unit, when performing channel state information measurement configuration on a user equipment, sending, to the user equipment, a plurality of And indicating, by the reference signal, indication information of the interference cancellation process; the multiple indication information corresponding to the configured multiple subframe sets;
- the result receiving unit receives the channel state information measurement result sent by the user equipment.
- a user equipment is provided, where the user equipment includes:
- An information receiving unit configured to receive an available almost empty subframe set sent by the base station
- a signal measuring unit determining, according to the available almost empty subframe set and the configured multiple subframe sets, whether to use interference cancellation processing when performing channel state information measurement on the reference signal; and a result sending unit, transmitting channel state information to the base station Measurement results.
- a base station includes: an information sending unit, when the channel state information measurement configuration is performed on the user equipment, sending, to the user equipment, the available configuration for the user equipment Almost empty subframe set;
- the result receiving unit receives the channel state information measurement result sent by the user equipment.
- a computer readable program is provided, wherein when the program is executed in a base station, the program causes a computer to perform a measurement method of a reference signal as described above in the base station.
- a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform a measurement method of a reference signal as described above in a base station.
- a computer readable program wherein when the program is executed in a user equipment, the program causes a computer to perform measurement of a reference signal as described above in the user equipment method.
- a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform a measurement method of a reference signal as described above in a user equipment.
- the information of the embodiment of the present invention is that the base station side or the user equipment side sends the indication information for indicating whether to perform the interference cancellation processing on the reference signal, so that the base station side can know whether the user equipment side performs the interference cancellation processing, thereby being accurate.
- the measurement result of the reference signal is obtained.
- FIG. 1 is a schematic diagram of a scenario in which a macro cell and a micro cell coexist in a heterogeneous network
- Embodiment 2 is a flowchart of a measurement method according to Embodiment 1 of the present invention on a base station side;
- Figure 3 is a block diagram showing a configuration of a base station according to Embodiment 1 of the present invention.
- FIG. 4 is a flowchart of a measurement method according to Embodiment 2 of the present invention on a user equipment side;
- FIG. 5 is a configuration diagram of a user equipment according to Embodiment 2 of the present invention;
- FIG. 6 is a flowchart of a measurement method according to Embodiment 3 of the present invention on a base station side;
- Figure 7 is a block diagram showing a configuration of a base station according to a third embodiment of the present invention.
- Embodiment 8 is a flowchart of a measurement method according to Embodiment 4 of the present invention on a base station side;
- FIG. 9 is a flowchart of a measurement method according to Embodiment 4 of the present invention on a user equipment side;
- FIG. 10 is still another flowchart of a measurement method according to Embodiment 4 of the present invention.
- Figure 11 is a block diagram showing a configuration of a user equipment according to Embodiment 4 of the present invention.
- Figure 12 is a block diagram showing a configuration of a base station according to a fourth embodiment of the present invention.
- the common reference signal (CRS) of the macro base station is transmitted at normal power, thereby causing strong interference to the pico base station.
- CRS common reference signal
- RRM radio resource management
- one of the two measurement sets reflects ABS resource performance, and the other measurement set reflects non-ABS performance.
- the pico UE needs to perform interference cancellation processing.
- the UE cannot distinguish which set is a measurement set that requires interference cancellation.
- Embodiments of the present invention provide a method for measuring a reference signal, which is applied to radio resource management measurement.
- 2 is a flowchart of a measurement method according to an embodiment of the present invention on a base station side. As shown in FIG. 2, the measurement method includes:
- Step 201 When performing radio resource management measurement configuration on the user equipment, the base station sends, to the user equipment, indication information for indicating whether to perform interference cancellation processing on the reference signal;
- Step 202 The base station receives a radio resource management measurement result of the reference signal sent by the user equipment.
- the user equipment may perform RRM measurement through a reference signal, which may be a common reference signal CRS.
- a reference signal which may be a common reference signal CRS.
- CRS common reference signal
- the indication information may be carried by an information element (IE, Information Element), and may be 1-bit information added in the CellToAddMod lE. That is to say, for the indication of whether or not to use the CRS interference technique, a 1-bit IE can be added to the measurement configuration to indicate in the CellsToAddMod IE.
- IE Information Element
- the specific content of the CellsToAddMod IE can refer to the prior art, and will not be described here.
- the base station may be a macro base station, and the user equipment may be served by the macro base station, that is, the user equipment is a Macro UE.
- the step 201 may include: when the measurement object of the user equipment is a micro base station configured with an almost null subframe, the macro base station sends the indication information to the user equipment.
- the macro base station when the macro base station performs measurement configuration on the macro UE, if the measurement object is a pico base station configured with an ABS, the macro base station may need to inform the UE in the measurement configuration whether the measurement of the pico base station needs to be used. CRS interference cancellation processing.
- the base station may be a micro base station (eg, a Pico eNB), and the user equipment may be served by the micro base station.
- the step 201 may specifically include: when the measurement object of the user equipment is the serving cell, the micro base station sends the indication information to the user equipment.
- the pico base station when the pico base station performs measurement configuration on the pico UE with severe interference, if the measurement object is the serving cell, the pico base station may inform the UE in the measurement configuration whether the measurement of the serving base station needs to use CRS interference cancellation. deal with.
- the base station since the base station performs RRM measurement configuration on the user equipment, the base station has sent indication information to the user equipment for indicating whether to perform interference cancellation processing on the reference signal.
- the user equipment side can perform measurement according to the indication information, and send the RRM measurement result to the base station side.
- the base station explicitly indicates that the CRS IC (interference cancellation) measurement is to be used, and the UE will use the CRS IC technology in the measurement. Otherwise, the UE will not use the CRS IC in this measurement.
- CRS IC interference cancellation
- the base station side may receive the RRM measurement result sent by the user equipment. Since the measurement configuration, the base station has informed the UE if interference cancellation is required. Therefore, the base station can know whether the received measurement result has used interference cancellation, and can accurately process the measurement result.
- the embodiment of the present invention further provides a base station, which corresponds to the foregoing measurement method, and the same content as the above method is not described again.
- the base station 300 includes: an information sending unit 301 and a result receiving unit 302. Other parts of the base station 300 may refer to the prior art, and Narration.
- the information sending unit 301 is configured to send, to the user equipment, indication information for indicating whether to perform interference cancellation processing on the reference signal when performing the radio resource management measurement configuration on the user equipment; and the result receiving unit 302 receives the radio resource sent by the user equipment. Manage measurement results.
- the base station is a macro base station
- the user equipment is served by the macro base station
- the information sending unit 301 is specifically configured to: when the measurement object of the user equipment is a micro base station configured with an almost null subframe, The user equipment sends the indication information.
- the base station is a micro base station
- the user equipment is served by the micro base station
- the information sending unit 301 is specifically configured to: when the measurement object of the user equipment is a serving cell, send the indication to the user equipment. information.
- the indication information for indicating whether to perform interference cancellation processing on the reference signal is sent to the user equipment side by the base station side, so that the user equipment side can perform measurement of the reference signal according to the indication information.
- the base station side can know whether the interference cancellation processing is performed on the user equipment side, and accurately obtain the measurement result of the reference signal.
- Embodiments of the present invention provide a method for measuring a reference signal, which is applied to radio resource management measurement.
- 4 is a flowchart of a measurement method according to an embodiment of the present invention on a user equipment side. As shown in FIG. 4, the measurement method includes:
- Step 401 The user equipment selects whether to use interference cancellation processing when performing radio resource management measurement on the reference signal.
- Step 402 The user equipment sends a radio resource management measurement result to the base station, and indication information indicating whether the interference cancellation processing is performed.
- the user equipment may perform RRM measurement through a reference signal, which may be a common reference signal CRS.
- a reference signal which may be a common reference signal CRS.
- CRS common reference signal
- the user equipment may select to use the CRS IC according to its own capability for the cell that can only be measured in the restricted subframe set, wherein the self-capability may be preset for the user equipment.
- the present invention is not limited to selecting a CRS IC according to the UE's own capabilities. For example, it may also be selected according to the load condition of the user equipment, which may be based on actual conditions. The scenario determines the specific implementation.
- the indication information may be carried by an IE (Information Element), and may be 1-bit information added in the measResult lE. That is to say, when the UE performs measurement reporting, it can indicate whether the measurement result uses the CRS interference cancellation technology by using 1 bit, and can add 1 bit to the measResult IE to indicate the information.
- the specific content of the measResult IE can refer to the prior art, and details are not described herein again.
- 0 can be used to indicate that the user equipment does not use CRS interference technology
- “1” is used to indicate that the user equipment uses CRS interference technology.
- a plurality of bits may be used for indication, and a specific embodiment may be determined according to actual conditions.
- the base station is a macro base station
- the user equipment is served by the macro base station
- the measurement object of the user equipment is a micro base station configured with almost blank subframes.
- the macro base station when the macro base station performs measurement configuration on the macro UE, if the measurement target is a pico base station that has been configured with the ABS, the macro base station configures the macro UE to limit the measurement of the pico base station to a certain subframe set.
- the base station is a micro base station
- the user equipment is served by the micro base station
- the measurement object of the user equipment is a serving cell.
- the pico base station when the pico base station performs measurement configuration on the pico UE that is subject to severe interference, if the measurement target is the serving cell, the pico base station configures the UE to limit the measurement of the serving cell to a certain subframe set.
- the base station side may receive the measurement result sent by the user equipment, and the indication information for indicating whether the interference cancellation process is performed. Since the UE is reporting on the measurement, the measurement result using the CRS interference cancellation has been indicated. Therefore, the base station knows whether the received measurement result has used CRS interference cancellation.
- the embodiment of the present invention further provides a user equipment, which corresponds to the foregoing measurement method, and the same content as the above method is not described again.
- the user equipment 500 includes: a signal measurement unit 501 and a result sending unit 502. Other parts of the user equipment 500 may refer to the prior art. I won't go into details here.
- the signal measuring unit 501 is configured to perform radio resource management measurement on the reference signal.
- the result transmitting unit 502 is configured to send the radio resource management measurement result to the base station, and the indication information for indicating whether the interference cancellation processing is performed.
- the base station is a macro base station
- the user equipment is served by the macro base station
- the measurement object of the user equipment is a micro base station configured with almost blank subframes.
- the base station is a micro base station
- the user equipment is served by a micro base station
- the measurement object of the user equipment is a serving cell
- the user equipment side selects whether or not to perform interference cancellation processing, and transmits indication information indicating whether or not to perform interference cancellation processing to the base station side.
- the base station side can know whether the interference cancellation processing is performed on the user equipment side, and accurately obtain the measurement result of the reference signal.
- Embodiments of the present invention provide a method for measuring a reference signal, which is applied to channel state information measurement.
- FIG. 6 is a flowchart of a measurement method according to an embodiment of the present invention on a base station side. As shown in FIG. 6, the measurement method includes:
- Step 601 When performing a channel state information measurement configuration on the user equipment, the base station sends, to the user equipment, multiple indication information for indicating whether to perform interference cancellation processing on the reference signal, where the multiple indication information corresponds to the configured multiple subframes.
- Step 602 The base station receives a channel state information measurement result sent by the user equipment.
- the base station is a micro base station (for example, a Pico eNB), and the user equipment is served by the micro base station, and may be a Pico UE.
- the user equipment can perform CSI measurements through a reference signal (eg CRS).
- the micro base station may configure two subframe sets in the csi-SubframePatternConfig-rlO IE: csi-MeasSubframeSetl-rlO and csi-MeasSubframeSet2-rlO; wherein the two subframes are concentrated, one can reflect the performance of the ABS resource, and One can reflect the performance of non-ABS resources.
- csi-SubframePatternConfig-rlO IE csi-MeasSubframeSetl-rlO and csi-MeasSubframeSet2-rlO
- the micro base station may configure indication information for csi-MeasSubframeSetl-rlO and csi-MeasSubframeSet2-rlO, respectively, to indicate whether to interfere with the reference signal. Eliminate processing. That is, the Pico base station can indicate in the csi-SubframePatternConfig-rlO: whether the CSI measurement in the two measurement sets uses the CSI interference cancellation technique.
- the indication information may be 1 bit, but is not limited thereto.
- the above only uses csi-SubframePattemConfig-rlO IE, and csi-MeasSubframeSet 1 -r 10 and csi-MeasSubframeSet2-rlO as an example, and the indication information is two.
- the present invention is not limited thereto, and the indication information may be two or more, and a specific implementation manner may be determined according to a specific situation.
- the user equipment side may use or not use interference cancellation processing when performing measurement of the reference signal according to the CSI measurement configuration of the base station side. That is, according to the measurement in the measurement configuration, the UE will explicitly use the CRS IC technology in the measurement; otherwise, the UE will not use the CRS IC in the measurement.
- the base station side may receive the CSI measurement result sent by the user equipment. Since the base station has informed the UE whether interference cancellation is required during the CSI measurement configuration, the user equipment side can distinguish whether the subframe set requires interference cancellation processing. Moreover, the base station can know whether the received measurement result has used interference cancellation, and can accurately process the measurement result.
- the embodiment of the present invention further provides a base station, which corresponds to the foregoing measurement method, and the same content as the above method is not described again.
- FIG. 7 is a structural diagram of a base station according to an embodiment of the present invention.
- the base station 700 includes: an information sending unit 701 and a result receiving unit 702. Other parts of the base station 700 may refer to the prior art, and Narration.
- the information sending unit 701 is configured to: when the channel state information measurement configuration is performed on the user equipment, send, to the user equipment, multiple indication information for indicating whether to perform interference cancellation processing on the reference signal; the multiple indication information corresponding to the configured The plurality of subframe sets; the result receiving unit 702 is configured to receive the channel state information measurement result sent by the user equipment.
- the base station may be a micro base station, and the user equipment is served by the micro base station.
- the micro base station may configure two subframe sets in the csi-SubframePatternConfig-rlO IE: csi-MeasSubframeSetl -rl 0 and csi-MeasSubframeSet2-r 10; the multiple indication information may be in csi-MeasSubframeSetl-rlO and csi-MeasSubframeSet2- 1-bit information used in rlO, respectively.
- the indication information of whether the interference cancellation processing is performed on the reference signal is configured by the base station side for the plurality of subframe sets, so that the user equipment side can perform the measurement of the reference signal according to the indication information. Therefore, the base station side can know whether the interference cancellation process is performed on the user equipment side, and accurately obtain the measurement result of the reference signal.
- Embodiments of the present invention provide a method for measuring a reference signal, which is applied to channel state information measurement.
- FIG. 8 is a flowchart of a measurement method according to an embodiment of the present invention on a base station side. As shown in FIG. 8, the measurement method includes:
- Step 801 When performing channel state information measurement configuration on the user equipment, the base station sends, to the user equipment, an available almost empty subframe set configured for the user equipment.
- Step 802 The base station receives a channel state information measurement result sent by the user equipment.
- the base station may be a micro base station, and the user equipment is served by the micro base station, and the user equipment may perform CSI measurement by using a reference signal (for example, CRS).
- a reference signal for example, CRS
- the micro base station can configure two subframe sets in the csi-SubframePattemConfig-rlO IE: csi-Meas SubframeSetl-rlO and csi-MeasSubframeSet2-rlO.
- the micro base station may configure the available ABS set in the RadioResourceConfigDedicated. That is to say, in RadioResourceConfigDedicated, the micro base station can inform the UE of the configured available ABS set.
- FIG. 9 is a flowchart of a measurement method according to an embodiment of the present invention on a user equipment side. As shown in FIG. 9, the measurement method includes:
- Step 901 The user equipment receives an available almost empty subframe set sent by the base station.
- Step 902 The user equipment determines, according to the available almost null subframe set and the configured multiple subframe sets, whether to use interference cancellation processing when performing channel state information measurement on the reference signal.
- Step 903 The user equipment sends channel state information to the base station. Measurement results.
- the multiple subframe sets are subframe sets of the micro base station in the csi-SubframePattemConfig-rlO IE: csi-Meas SubframeSetl-rlO and csi-Meas SubframeSet2-rlO.
- the step 902 may specifically include:
- the user equipment uses interference cancellation processing in the measurement of csi-MeasSubframeSetl-rlO when the intersection of csi-MeasSubframeSetl-rlO and the available almost empty subframe set is not empty; or, in csi-MeasSubframeSet2-rlO and the available almost empty subframe set When the intersection is not empty, interference cancellation processing is used in the measurement of csi-MeasSubframeSet2-rlO.
- FIG. 10 is a flowchart of a measurement method according to an embodiment of the present invention, which is described from the base station side and the user equipment side. As shown in FIG. 10, the measurement method includes:
- Step 1001 When performing channel state information measurement configuration on the user equipment, the base station sends, to the user equipment, an available almost empty subframe set configured for the user equipment.
- Step 1002 After receiving, by the user equipment, the available almost blank subframe set, the user equipment determines whether to use interference cancellation processing when performing channel state information measurement on the reference signal according to the available almost empty subframe set and the configured multiple subframe set.
- Step 1003 The user equipment performs channel state information measurement of the reference signal.
- Step 1004 The user equipment sends a channel state information measurement result to the base station.
- the user equipment may determine whether to use interference cancellation processing when measuring the reference signal according to whether the intersection of the measurement set and the available ABS set is empty.
- the user equipment can then send the measurement results to the base station.
- the base station may determine whether the received CSI measurement report has adopted the CRS interference cancellation technology according to whether the intersection of the CSI measurement set and the available ABS set is empty.
- the embodiment of the present invention further provides a base station and a user equipment, which correspond to the foregoing measurement methods, and the same content as the above method is not described again.
- the user equipment 1100 includes: an information receiving unit 1101, a signal measuring unit 1102, and a result sending unit 1103. Other parts of the user equipment 1100 may be referred to. The prior art is not described here.
- the information receiving unit 1101 is configured to receive an available almost empty subframe set sent by the base station; the signal measuring unit 1102 is configured to determine, when performing channel state information measurement on the reference signal, according to the available almost empty subframe set and the configured multiple subframe set. Whether to use the interference cancellation processing; the result transmitting unit 1103 is configured to transmit the channel state information measurement result to the base station.
- the base station may be a micro base station, and the user equipment is served by the micro base station.
- the multiple subframe set is configured by the micro base station in the csi-SubframePatternConfig-rlO IE. Two sets of subframes: csi-MeasSubframeSetl-rlO and csi-MeasSubframeSet2-rlO.
- the signal measurement unit 1102 may be specifically configured to: use interference cancellation processing in the measurement of csi-MeasSubframeSetl -rl 0 when the intersection of csi-MeasSubframeSet 1 -r 10 and the available almost empty subframe set is not empty Or, the interference cancellation processing is used in the measurement of csi-MeasSubframeSet2-rlO when the intersection of csi-MeasSubframeSet2-r 10 and the available almost empty subframe set is not empty.
- FIG. 12 is a structural diagram of a base station according to an embodiment of the present invention. As shown in FIG. 12, the base station 1200 includes: an information sending unit 1201 and a result receiving unit 1202. Other parts of the base station 1200 may refer to the prior art, and Narration.
- the information sending unit 1201 is configured to: when performing the channel state information measurement configuration on the user equipment, send the available almost empty subframe set configured for the user equipment to the user equipment; and the result receiving unit 1202 is configured to receive the channel state information sent by the user equipment. Measurement results.
- the base station may be a micro base station, and the user equipment is served by the micro base station.
- the micro base station configures an almost empty subframe set in RadioResourceConfigDedicated; and the micro base station configures two subframe sets in the csi-SubframePatternConfig-rlO IE: csi-Meas Subframe Setl-rlO and csi-MeasSubframeSet2-rlO.
- the available ABS set is sent to the user equipment side by the base station, and the user equipment side determines whether to perform interference cancellation processing according to the available ABS and the measurement set.
- the base station side can know whether the interference cancellation processing has been performed on the user equipment side, and accurately obtain the measurement result of the reference signal.
- the embodiment of the present invention also provides a computer readable program, wherein when the program is executed in a base station, the program causes a computer to perform a measurement method of the reference signal as described above in the base station.
- Embodiments of the present invention also provide a storage medium storing a computer readable program, wherein the computer readable program causes a computer to perform a measurement method of a reference signal as described above in a base station.
- the embodiment of the present invention further provides a computer readable program, wherein when the program is executed in a user device, the program causes a computer to perform a measurement method of the reference signal as described above in the user device.
- An embodiment of the present invention further provides a storage medium storing a computer readable program, wherein The computer readable program causes a computer to perform a measurement method of a reference signal as described above in a user equipment.
- the above apparatus and method of the present invention may be implemented by hardware or by hardware in combination with software.
- the present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or a step.
- the present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.
- One or more of the functional blocks described in the figures and/or one or more combinations of functional blocks may be implemented as a general purpose processor, digital signal processor (DSP) for performing the functions described herein.
- DSP digital signal processor
- ASIC application specific integrated circuit
- FPGA field programmable gate array
- One or more of the functional blocks described with respect to the figures and/or one or more combinations of functional blocks may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, multiple microprocessors One or more microprocessors in conjunction with DSP communication or any other such configuration.
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Abstract
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Priority Applications (6)
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KR1020147030027A KR20140146629A (ko) | 2012-05-08 | 2012-05-08 | 기준 신호 측정 방법, 기지국 및 사용자 장치 |
PCT/CN2012/075189 WO2013166657A1 (zh) | 2012-05-08 | 2012-05-08 | 参考信号的测量方法、基站及用户设备 |
CN201280072075.XA CN104205969A (zh) | 2012-05-08 | 2012-05-08 | 参考信号的测量方法、基站及用户设备 |
EP12876200.2A EP2849507A4 (en) | 2012-05-08 | 2012-05-08 | REFERENCE SIGNAL METHOD, BASE STATION AND USER DEVICE |
JP2015506066A JP2015515214A (ja) | 2012-05-08 | 2012-05-08 | 参照信号の測定方法、基地局およびue |
US14/516,131 US20150036530A1 (en) | 2012-05-08 | 2014-10-16 | Measurement method for reference signal, base station and ue |
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PCT/CN2012/075189 WO2013166657A1 (zh) | 2012-05-08 | 2012-05-08 | 参考信号的测量方法、基站及用户设备 |
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US14/516,131 Continuation US20150036530A1 (en) | 2012-05-08 | 2014-10-16 | Measurement method for reference signal, base station and ue |
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US (1) | US20150036530A1 (zh) |
EP (1) | EP2849507A4 (zh) |
JP (1) | JP2015515214A (zh) |
KR (1) | KR20140146629A (zh) |
CN (1) | CN104205969A (zh) |
WO (1) | WO2013166657A1 (zh) |
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WO2015141619A1 (ja) * | 2014-03-20 | 2015-09-24 | シャープ株式会社 | 端末装置及び基地局装置 |
WO2015166865A1 (ja) * | 2014-04-28 | 2015-11-05 | シャープ株式会社 | 端末装置および集積回路 |
US20220312356A1 (en) * | 2013-02-14 | 2022-09-29 | Blackberry Limited | Small Cell Demodulation Reference Signal and Initial Synchronization |
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EP2963967B1 (en) * | 2013-04-09 | 2021-09-22 | Huawei Technologies Co., Ltd. | Measurement method, base station and user equipment |
CN106576256B (zh) * | 2014-07-31 | 2020-04-07 | 宇龙计算机通信科技(深圳)有限公司 | 时频同步维持的方法、时频同步维持的系统和终端 |
KR102301826B1 (ko) | 2014-08-27 | 2021-09-14 | 삼성전자 주식회사 | 무선 통신 시스템 및 그 시스템에서 간섭 조정을 위한 자원 관리 방법 |
CN104317504B (zh) * | 2014-09-29 | 2018-02-27 | 联想(北京)有限公司 | 一种控制方法和装置 |
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Also Published As
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US20150036530A1 (en) | 2015-02-05 |
EP2849507A1 (en) | 2015-03-18 |
EP2849507A4 (en) | 2015-12-23 |
JP2015515214A (ja) | 2015-05-21 |
KR20140146629A (ko) | 2014-12-26 |
CN104205969A (zh) | 2014-12-10 |
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