WO2017054167A1 - 传输信道状态信息-参考信号csi-rs的方法及装置 - Google Patents
传输信道状态信息-参考信号csi-rs的方法及装置 Download PDFInfo
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- WO2017054167A1 WO2017054167A1 PCT/CN2015/091211 CN2015091211W WO2017054167A1 WO 2017054167 A1 WO2017054167 A1 WO 2017054167A1 CN 2015091211 W CN2015091211 W CN 2015091211W WO 2017054167 A1 WO2017054167 A1 WO 2017054167A1
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- 230000005540 biological transmission Effects 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
- H04L27/261—Details of reference signals
- H04L27/2613—Structure of the reference signals
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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
- H04L5/0014—Three-dimensional division
- H04L5/0023—Time-frequency-space
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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
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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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
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/535—Allocation or scheduling criteria for wireless resources based on resource usage policies
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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
- H04B7/0413—MIMO systems
Definitions
- the embodiments of the present invention relate to communication technologies, and in particular, to a method and an apparatus for transmitting a channel state information-reference signal (CSI-RS).
- CSI-RS channel state information-reference signal
- the base station in the Long Term Evolution Advanced (LTE) Release 12 supports only up to eight CSI-RS ports. This situation results in a lower throughput of the LTE system.
- the number of CSI-RS ports of the base station is an effective means to improve system throughput.
- the base station supports eight CSI-RS ports.
- CSI-RS ports there are five configuration modes in one physical resource block (PRB) pair, and each configuration mode is eight CSI-RS ports.
- PRB physical resource block
- Each configuration mode is eight CSI-RS ports.
- the corresponding problem of the CSI-RS port and the RE is solved in the following manner. If the current port number is increased to 12, the 12 port numbers are from 0-11, and the port 0-7 is still used in one subframe. In five sub-frames, port 8-11 uses the RE corresponding to the first four ports of the eight ports to transmit CSI-RS signals.
- the port added in the prior art can only transmit the CSI-RS signal in another subframe, so that the user terminal cannot receive the CSI-RS signal in time, thereby causing the problem that the channel estimation efficiency is low; and the time domain change of the channel When it is large, it also has a large impact on the performance of channel estimation, which in turn affects system performance.
- Embodiments of the present invention provide a method and apparatus for transmitting channel state information-reference signal CSI-RS. Therefore, while improving system throughput, the user terminal can receive the CSI-RS letter in time. No., thereby improving channel estimation efficiency.
- an embodiment of the present invention provides a method for transmitting a channel state information-reference signal CSI-RS, including: determining, by a base station, a first configuration mode of a CSI-RS based on a physical resource block PRB pair; the first configuration mode The occupied resource element RE is aggregated by all resource elements RE or partial resource elements RE occupied by at least two second configuration modes of the CSI-RS; the first configuration mode is greater than 8 CSI-RS ports a configuration mode, including a correspondence between each CSI-RS port and a resource element RE; the second configuration mode is a configuration mode of eight CSI-RS ports, including a correspondence between each CSI-RS port and a resource element RE; The base station transmits the CSI-RS to the user equipment by using the first configuration mode.
- the first configuration mode includes 12 CSI-RS ports; and the base station determines a first configuration mode of the CSI-RS based on one PRB pair, The base station determines that the first eight CSI-RS ports in the first configuration mode occupy all the REs occupied by the second configuration mode according to the sequence of the port numbers, and the last four of the first configuration modes.
- the CSI-RS ports occupy a part of the REs occupied by the other or a plurality of other types of the second configuration modes.
- the first configuration mode includes 16 CSI-RS ports; and the base station determines a first configuration mode of the CSI-RS based on one PRB pair.
- the base station determines that the first eight CSI-RS ports in the first configuration mode occupy all the REs occupied by the second configuration mode, in the order of the port number, after the first configuration mode.
- 8 CSI-RS ports occupy all the REs occupied by the second configuration mode; or the last 8 CSI-RS ports of the first configuration mode occupy other types of the second configuration mode Part of the resource element RE.
- the first configuration mode includes 12 or 16 CSI-RS ports; and the base station determines the first configuration of the CSI-RS based on one PRB pair.
- the mode includes: determining, by the base station, a part of REs or all REs that are not aggregated in the second configuration mode in multiple PRB pairs in a time domain or a frequency domain direction, and establishing the unrecognized part RE or all REs Correspondence relationship of the CSI-RS ports of the first configuration mode.
- the method further includes: determining, by the base station, the multiple PRBs in a time domain or a frequency domain direction The total number of said first configuration modes.
- the embodiment of the present invention provides a method for transmitting a channel state information-reference signal CSI-RS, including: a user equipment receiving a CSI-RS transmitted by a base station in a first configuration mode; and a first configuration of the CSI-RS
- the mode is determined by the base station based on one physical resource block PRB pair; the resource element RE occupied by the first configuration mode is all resource elements RE or part occupied by at least two second configuration modes of the CSI-RS
- the resource element RE is aggregated;
- the first configuration mode is a configuration mode of more than 8 CSI-RS ports, including a correspondence between each CSI-RS port and a resource element RE; and the second configuration mode is 8 CSIs.
- the configuration mode of the RS port including the correspondence between each CSI-RS port and the resource element RE.
- the first configuration mode includes 12 CSI-RS ports; and the first configuration mode of the CSI-RS is based on the base station And determining, by the base station, the first eight CSI-RS ports in the first configuration mode, occupying all the REs occupied by the second configuration mode, in the order of the port number.
- the last four CSI-RS ports of the first configuration mode occupy a part of the REs occupied by the other one or other plurality of the second configuration modes.
- the first configuration mode includes 16 CSI-RS ports; and the first configuration mode of the CSI-RS is based on the base station And determining, by the base station, the first eight CSI-RS ports in the first configuration mode, occupying all the REs occupied by the second configuration mode, in the order of the port number.
- the last 8 CSI-RS ports of the first configuration mode occupy all the REs occupied by the other second configuration mode; or the last 8 CSI-RS ports of the first configuration mode occupy other types of Part of the resource element RE occupied by the second configuration mode.
- the first configuration mode includes 12 or 16 CSI-RS ports; and the first configuration mode of the CSI-RS is performed by the base station Determining based on a physical resource block PRB pair, including: determining, by the base station, a part of REs or all REs of the plurality of PRB pairs in the time domain or the frequency domain direction that are not aggregated in the second configuration mode, and establishing the not Correspondence between the aggregated partial REs or all REs and the CSI-RS ports of the first configuration mode.
- an embodiment of the present invention provides a device for transmitting a channel state information-reference signal CSI-RS, where the device is a base station, including: a determining module and a transmitting module; and the determining module is configured to be based on a physical resource block.
- the transmission module is configured to transmit the CSI-RS to the user equipment by using the first configuration mode.
- the first configuration mode includes 12 CSI-RS ports
- the determining module is specifically configured to: determine, according to a sequence of port numbers The first 8 CSI-RS ports in a configuration mode occupy all the REs occupied by the second configuration mode, and the last 4 CSI-RS ports in the first configuration mode occupy one or the other multiple A part of the RE occupied by the second configuration mode.
- the first configuration mode includes 16 CSI-RS ports
- the determining module is specifically configured to: determine, according to a sequence of port numbers The first 8 CSI-RS ports of a configuration mode occupy all the REs occupied by the second configuration mode, and the last 8 CSI-RS ports of the first configuration mode occupy another of the second configurations. All the REs occupied by the mode; or the last 8 CSI-RS ports of the first configuration mode occupy a plurality of other resource elements RE occupied by the plurality of the second configuration modes.
- the first configuration mode includes 12 or 16 CSI-RS ports
- the determining module is specifically configured to: determine a time domain or a frequency domain direction Corresponding relationship between the unrecognized partial RE or all REs and the CSI-RS port of the first configuration mode is established in the multiple PRBs in the second configuration mode.
- the determining module is further configured to: determine the multiple PRBs in a time domain or a frequency domain direction The total number of said first configuration patterns in the pair.
- an embodiment of the present invention provides a device for transmitting a channel state information-reference signal CSI-RS, where the device is a user equipment, including: a receiving module and a storage module; and the receiving module is configured to receive a base station.
- CSI-RS channel state information-reference signal
- the storage module is configured to store the CSI-RS;
- the first configuration mode of the CSI-RS is determined by the base station based on a physical resource block PRB pair;
- the resource element RE occupied by the first configuration mode is composed of at least two types of the CSI-RS All resource elements RE or part of resource elements RE occupied by the second configuration mode are aggregated;
- the first configuration mode is a configuration mode of more than 8 CSI-RS ports, including each CSI-RS port and resource element RE Corresponding relationship;
- the second configuration mode is a configuration mode of 8 CSI-RS ports, including a correspondence between each CSI-RS port and a resource element RE.
- an embodiment of the present invention provides a device for transmitting a channel state information-reference signal CSI-RS, where the device is a base station, including: a processor and a transmitter; and the processor is configured to be based on a physical resource block.
- a PRB pair determines a first configuration mode of the CSI-RS; the resource element RE occupied by the first configuration mode is aggregated by all resource elements RE or partial resource elements RE occupied by at least two second configuration modes of the CSI-RS
- the first configuration mode is a configuration mode of more than 8 CSI-RS ports, including a correspondence between each CSI-RS port and a resource element RE; the second configuration mode is 8 CSI-RS ports.
- the configuration mode includes a correspondence between each CSI-RS port and a resource element RE, and the transmitter is configured to transmit the CSI-RS to the user equipment by using the first configuration mode.
- the first configuration mode includes 12 CSI-RS ports
- the processor is specifically configured to: determine, according to a sequence of port numbers The first 8 CSI-RS ports in a configuration mode occupy all the REs occupied by the second configuration mode, and the last 4 CSI-RS ports in the first configuration mode occupy one or the other multiple A part of the RE occupied by the second configuration mode.
- the first configuration mode includes 16 CSI-RS ports
- the processor is specifically configured to: determine the number according to an order of port numbers.
- the first 8 CSI-RS ports of a configuration mode occupy all the REs occupied by the second configuration mode, and the last 8 CSI-RS ports of the first configuration mode occupy another of the second configurations. All the REs occupied by the mode; or the last 8 CSI-RS ports of the first configuration mode occupy a plurality of other resource elements RE occupied by the plurality of the second configuration modes.
- the first configuration mode includes 12 or 16 CSI-RS ports
- the processor is specifically configured to: determine a time domain or a frequency domain direction Corresponding relationship between the unrecognized partial RE or all REs and the CSI-RS port of the first configuration mode is established in the multiple PRBs in the second configuration mode. .
- the processor is further configured to: determine a total number of the first configuration modes in the plurality of PRB pairs in a time domain or a frequency domain direction.
- an embodiment of the present invention provides a device for transmitting a channel state information-reference signal CSI-RS, where the device is a user equipment, and includes: a receiver and a memory; Configuring a mode-transmitted CSI-RS; the memory is configured to store the CSI-RS; the first configuration mode of the CSI-RS is determined by the base station based on a physical resource block PRB pair; the first The resource element RE occupied by the configuration mode is aggregated by all resource elements RE or partial resource elements RE occupied by at least two second configuration modes of the CSI-RS; the first configuration mode is greater than 8 CSI-RSs a configuration mode of the port, including a correspondence between each CSI-RS port and a resource element RE; the second configuration mode is a configuration mode of eight CSI-RS ports, including a correspondence between each CSI-RS port and a resource element RE relationship.
- An embodiment of the present invention provides a method and an apparatus for transmitting a channel state information-reference signal CSI-RS.
- the method includes: determining, by a base station, a first configuration mode of a CSI-RS based on a physical resource block PRB pair;
- the resource element RE is aggregated by all resource elements RE or partial resource elements RE occupied by the second configuration mode of at least two CSI-RSs;
- the first configuration mode is a configuration mode of more than 8 CSI-RS ports, including each Corresponding relationship between the CSI-RS port and the resource element RE;
- the second configuration mode is a configuration mode of the eight CSI-RS ports, including the correspondence between each CSI-RS port and the resource element RE;
- the base station adopts the first configuration mode to the user
- the device transmits the CSI-RS. Therefore, while improving the system throughput, the user terminal can ensure that the CSI-RS signal is received in time, thereby improving channel estimation efficiency.
- FIG. 1 is a flowchart of a method for transmitting channel state information-reference signal CSI-RS according to an embodiment of the present invention
- FIG. 2 is a schematic diagram of five configuration modes in a PRB pair based on eight CSI-RS ports in the LTE Release 12 provided by the prior art;
- FIG. 3A is a first configuration mode of a 12 CSI-RS port in a PRB pair according to an embodiment of the present invention
- FIG. 3B is a second configuration mode of a 12 CSI-RS port in a PRB pair according to an embodiment of the present invention
- FIG. 3C is a third configuration mode of a 12 CSI-RS port in a PRB pair according to an embodiment of the present invention.
- FIG. 3D is a fourth configuration mode of a 12 CSI-RS port in a PRB pair according to an embodiment of the present invention.
- 4A is a configuration mode 1 based on 16 CSI-RS ports in a PRB pair according to an embodiment of the present invention
- FIG. 4B is a second configuration mode of a 16 CSI-RS port in a PRB pair according to an embodiment of the present invention
- FIG. 5 is a schematic structural diagram of an apparatus for transmitting a channel state information-reference signal CSI-RS according to an embodiment of the present invention
- FIG. 6 is a schematic structural diagram of an apparatus for transmitting a channel state information-reference signal CSI-RS according to another embodiment of the present invention.
- FIG. 7 is a schematic structural diagram of an apparatus for transmitting a channel state information-reference signal CSI-RS according to still another embodiment of the present invention.
- FIG. 8 is a schematic structural diagram of an apparatus for transmitting a channel state information-reference signal CSI-RS according to another embodiment of the present invention.
- FIG. 1 is a flowchart of a method for transmitting channel state information-reference signal CSI-RS according to an embodiment of the present invention.
- the example is applied to the scenario where the base station has extended the CSI-RS port, and the implementation mode of the embodiment of the present invention is based on the scenario that the configuration mode of the extended CSI-RS port is not yet determined.
- the base station as shown in FIG. 1 , specifically includes the following processes:
- the base station determines a first configuration mode of the CSI-RS based on one physical resource block PRB pair; the resource element RE occupied by the first configuration mode is all resource elements RE or part occupied by the second configuration mode of the at least two CSI-RSs
- the resource element RE is aggregated;
- the first configuration mode is a configuration mode of more than 8 CSI-RS ports, including a correspondence between each CSI-RS port and a resource element RE; and the second configuration mode is 8 CSI-RS ports.
- a configuration mode including a correspondence between each CSI-RS port and a resource element RE;
- the base station transmits the CSI-RS to the user equipment by using the first configuration mode.
- FIG. 2 is a schematic diagram of five configurations of eight CSI-RS ports in a LTE Release 12 in a PRB pair according to the prior art.
- one PRB pair occupies one subframe in a time domain, and each subframe There are two time slots, slot0 and slot1, which correspond to the first 7 orthogonal frequency division multiple access (OFDMA) symbols and the last 7 OFDMA symbols for the normal cyclic prefix.
- OFDMA orthogonal frequency division multiple access
- the same graphic represents the same second configuration mode, and five second configuration modes can be used. with Indicates that their corresponding index numbers are: 0, 1, 2, 3, 4. The numbers in the figure indicate the port number.
- the full-dimension multiple input multiple output (FD-MIMO) needs to be extended to the port of the base station; if the RE occupied by the CSI-RS port is continuously expanded, the other reference signals cannot be changed at the same time.
- RE the number of TEs used to transmit data is reduced, which in turn reduces the throughput of the system. Therefore, the base station occupies the RE occupied by the configuration mode adopted by the extended port and the configuration mode adopted based on the eight ports.
- the REs are consistent and no longer continue to expand the number of occupied REs.
- the first configuration mode includes 12 CSI-RS ports
- the base station determines the first configuration mode of the CSI-RS based on a PRB pair, where the base station determines the first configuration mode according to the order of the port numbers.
- the first 8 CSI-RS ports occupy all the REs occupied by the second configuration mode, and the last 4 CSI-RS ports of the first configuration mode occupy one or the other multiple of the second configurations. Part of the RE occupied by the mode.
- FIG. 3A is a first configuration mode based on 12 CSI-RS ports according to a configuration mode of 12 CSI-RS ports in one PRB pair according to an embodiment of the present invention. It may be that: the REs occupied by the eight ports 0-7 in the second configuration mode 0 are now occupied by the first eight ports of the 12 ports, and the last four ports use the RE occupied by the second configuration mode 1.
- the new ports 8, 9, 10, and 11 respectively correspond to 2, 3, 6, and 7 of the original 8 ports; 2.
- the first configuration mode based on 12 CSI-RS ports may be: in the second configuration mode 3
- the REs occupied by the eight ports 0-7 are now occupied by the first eight ports of the 12 ports, and the last four ports use the REs occupied by the second configuration mode 4, and the new ports 8, 9, 10, 11 Corresponding to 0, 1, 4, and 5 of the original 8 ports respectively; 3.
- the first configuration mode based on 12 CSI-RS ports may be: REs occupied by 8 ports 0-7 in the second configuration mode 2 Now, it is occupied by the first 8 ports of the 12 ports.
- the last 4 ports use the RE occupied by the second configuration mode 4.
- the new ports 8, 9, 10, and 11 respectively correspond to 0 of the original 8 ports. 1, 4, 5. Therefore, three first configuration modes based on 12 CSI-RS ports are currently included in FIG. 3A.
- FIG. 3B is a second configuration mode of a 12 CSI-RS port in a PRB pair according to an embodiment of the present invention.
- a first configuration mode based on 12 CSI-RS ports may be: The REs occupied by the eight ports 0-7 in the second configuration mode 0 are now occupied by the first eight ports of the 12 ports, and the last four ports use the RE occupied by the second configuration mode 1, the new port 8, 9, 10, and 11 respectively correspond to 2, 3, 6, and 7 of the original 8 ports; 2.
- the first configuration mode based on 12 CSI-RS ports may be: 8 ports in the second configuration mode 2
- the REs occupied by 0-7 are now occupied by the first 8 ports of the 12 ports, and the last 4 ports use the REs occupied by the second configuration mode 4, and the new ports 8, 9, 10, and 11 respectively correspond to the original 0, 1, 4, and 5 of the 8 ports; 3.
- the first configuration mode based on 12 CSI-RS ports may be: REs occupied by 8 ports 0-7 in the second configuration mode 3, now It is occupied by the first 8 ports of the 12 ports, and the last 4 ports use the RE occupied by the second configuration mode 4.
- the new ports 8, 9, 10, and 11 correspond to 2, 3 of the original 8 ports, respectively. 6, 7. Therefore, three first configuration modes based on 12 CSI-RS ports are currently included in FIG. 3B.
- FIG. 3C is a third configuration mode of a 12 CSI-RS port in a PRB pair according to an embodiment of the present invention.
- a first configuration mode based on 12 CSI-RS ports may be: The REs occupied by the eight ports 0-7 in the second configuration mode 0 are now occupied by the first eight ports of the 12 ports, and the last four ports use the RE occupied by the second configuration mode 1, the new port 8, 9, 10, and 11 respectively correspond to 2, 3, 6, and 7 of the original 8 ports; 2.
- the first configuration mode based on 12 CSI-RS ports may be: 8 ports in the second configuration mode 2 0-7 occupied RE, Now it is occupied by the first 8 ports of the 12 ports. The last 4 ports use the RE occupied by the second configuration mode 4.
- the new ports 8, 9, 10, and 11 respectively correspond to 0 and 1 of the original 8 ports. 4, 5; 3, the first configuration mode based on 12 CSI-RS ports may be: REs occupied by 8 ports 0-7 in the second configuration mode 3, now all are the first 8 of the 12 ports The ports occupy the same port. The last four ports use the RE occupied by the second configuration mode 4. The new ports 8, 9, 10, and 11 respectively correspond to 2, 3, 6, and 7 of the original 8 ports. Therefore, three first configuration modes based on 12 CSI-RS ports are currently included in FIG. 3C.
- FIG. 3D is a fourth configuration mode of a 12 CSI-RS port in a PRB pair according to an embodiment of the present invention.
- a first configuration mode based on 12 CSI-RS ports may be: The REs occupied by the eight ports 0-7 in the second configuration mode 0 are now occupied by the first eight ports of the 12 ports, and the last four ports use the RE occupied by the second configuration mode 1, the new port 8, 9, 10, and 11 respectively correspond to 2, 3, 6, and 7 of the original 8 ports; 2.
- the first configuration mode based on 12 CSI-RS ports may be: 8 ports in the second configuration mode 2
- the REs occupied by 0-7 are now occupied by the first 8 ports of the 12 ports, and the last 4 ports use the REs occupied by the second configuration mode 4, and the new ports 8, 9, 10, and 11 respectively correspond to the original 2, 3, 6, and 7 of the 8 ports; 3.
- the first configuration mode based on 12 CSI-RS ports may be: REs occupied by 8 ports 0-7 in the second configuration mode 1 are now It is occupied by the first 8 ports of the 12 ports, and the last 4 ports use the RE occupied by the second configuration mode 4.
- the new ports 8, 9, 10, and 11 correspond to 0, 1, respectively, of the original 8 ports. 4, 5. Therefore, three first configuration modes based on 12 CSI-RS ports are currently included in FIG. 3D.
- the first configuration mode includes 16 CSI-RS ports; the base station determines a first configuration mode of the CSI-RS based on a PRB pair, where the base station determines the order according to the port number.
- the first 8 CSI-RS ports in the first configuration mode occupy all the REs occupied by the second configuration mode, and the last 8 CSI-RS ports in the first configuration mode occupy another All the REs occupied by the second configuration mode; or the last 8 CSI-RS ports of the first configuration mode occupy a plurality of other resource elements RE occupied by the plurality of the second configuration modes.
- FIG. 4A is a configuration mode of a 16 CSI-RS port in a PRB pair according to an embodiment of the present invention.
- a first configuration mode based on 16 CSI-RS ports may be: The REs occupied by the eight ports 0-7 in the second configuration mode 0 are now occupied by the first eight ports of the 12 ports, and the last eight ports use the RE occupied by the second configuration mode 1;
- the first configuration mode based on the 16 CSI-RS ports may be: the REs occupied by the 8 ports 0-7 in the second configuration mode 3 are now occupied by the first 8 ports of the 12 ports, and the last 8 The port uses the RE occupied by the second configuration mode 4. Therefore, three first configuration modes based on 12 CSI-RS ports are currently included in FIG. 3A.
- FIG. 4B is a second configuration mode of a 16 CSI-RS port in a PRB pair according to an embodiment of the present invention.
- a first configuration mode based on 16 CSI-RS ports may be: The REs occupied by the eight ports 0-7 in the second configuration mode 0 are now occupied by the first eight ports of the 12 ports, and the last eight ports use the RE occupied by the second configuration mode 1;
- the first configuration mode of the 16 CSI-RS ports may be: the REs occupied by the 8 ports 0-7 in the second configuration mode 3 are now occupied by the first 8 ports of the 12 ports, and the last 8 ports
- the RE occupied by the second configuration mode 4 is used. Therefore, three first configuration modes based on 12 CSI-RS ports are currently included in FIG. 3A. The remaining REs can correspond to ports 8-15.
- the first configuration mode includes 12 or 16 CSI-RS ports; and the base station determines the first configuration mode of the CSI-RS based on one PRB pair, including:
- the base station determines a total number of the first configuration modes in the plurality of PRB pairs in the time domain or the frequency domain direction.
- the base station determines an RE that is not aggregated in the second configuration mode of the three PRB pairs, in FIG. 3A.
- the corresponding RE is not aggregated, in Figure 3B
- the corresponding RE is not aggregated, in Figure 3C
- the corresponding REs are not aggregated. Therefore, the correspondence between the partial REs that are not aggregated or all the REs and each CSI-RS port can be established as the first configuration mode.
- FIG. 3A - FIG. 3C respectively include three first configuration modes, and FIG. 3A - FIG. 3C includes a first configuration mode, and there are ten first configuration modes in total among three PRB pairs.
- the base station determines an RE that is not aggregated in the second configuration mode of the two PRB pairs, in FIG. 4A.
- the corresponding RE is not aggregated, in Figure 4B
- the corresponding REs are not aggregated. Therefore, the correspondence between the partial REs that are not aggregated or all the REs and each CSI-RS port can be established as the first configuration mode.
- Figures 4A and 4B respectively include two first configuration modes, and in conjunction with Figures 4A and 4B, a first configuration mode is included, with a total of five first configuration modes in two PRB pairs.
- An embodiment of the present invention provides a method for transmitting a channel state information-reference signal CSI-RS, including: determining, by a base station, a first configuration mode of a CSI-RS based on a physical resource block PRB pair; All resource elements RE or partial resource elements RE occupied by the second configuration mode of at least two CSI-RSs are aggregated; the first configuration mode is a configuration mode of more than 8 CSI-RS ports, including each CSI-RS port Corresponding relationship with the resource element RE; the second configuration mode is a configuration mode of the eight CSI-RS ports, including a correspondence between each CSI-RS port and the resource element RE; the base station transmits to the user equipment by using the first configuration mode CSI-RS.
- the embodiment of the present invention when the number of ports is increased to achieve the effect of improving the system throughput, the embodiment of the present invention implements the increase of the port on a PRB pair, thereby ensuring that the user terminal can receive the CSI-RS signal in time, thereby improving Channel evaluation efficiency.
- Another embodiment of the present invention provides a method for transmitting a channel state information-reference signal CSI-RS.
- the method is performed by a user equipment.
- the method includes the following process: the user equipment receives the CSI transmitted by the base station in the first configuration mode. -RS; wherein the first configuration mode of the CSI-RS is determined by the base station based on one physical resource block PRB pair; the resource element RE occupied by the first configuration mode is configured by the second configuration mode of at least two of the CSI-RSs All the resource elements RE or part of the resource elements RE are aggregated; the first configuration mode is a configuration mode of more than 8 CSI-RS ports, including a correspondence between each CSI-RS port and the resource element RE; The second configuration mode is a configuration mode of eight CSI-RS ports, including a correspondence between each CSI-RS port and a resource element RE.
- the first configuration mode includes 12 CSI-RS ports; then the first configuration mode of the CSI-RS is determined by the base station based on a physical resource block PRB pair, including: the base station according to The sequence of the port numbers determines that the first eight CSI-RS ports of the first configuration mode occupy all the REs occupied by the second configuration mode, and the last four CSI-RS ports of the first configuration mode are occupied. Some other or a plurality of other REs occupied by the second configuration mode.
- the first configuration mode includes 16 CSI-RS ports; then the first configuration mode of the CSI-RS is determined by the base station based on a physical resource block PRB pair, including: the base station Determining, in the order of the port numbers, all the REs occupied by the first eight CSI-RS ports in the first configuration mode, and the last eight CSI-RS ports in the first configuration mode. Taking up all the REs occupied by the other second configuration mode; or the first configuration mode The last 8 CSI-RS ports occupy a plurality of other resource elements RE occupied by the plurality of the second configuration modes.
- the first configuration mode includes 12 or 16 CSI-RS ports; and the first configuration mode of the CSI-RS is determined by the base station based on a physical resource block PRB pair, including: Determining, by the base station, a part of the REs or all the REs of the plurality of PRBs that are not aggregated in the second configuration mode in the time domain or the frequency domain, and establishing the unrecognized part of the REs or all the REs and the first configuration mode Correspondence of CSI-RS ports.
- An embodiment of the present invention provides a method for transmitting a channel state information-reference signal CSI-RS, including: a user equipment receiving a CSI-RS transmitted by a base station in a first configuration mode; wherein, a first configuration mode of the CSI-RS is performed by a base station
- the resource element RE occupied by the first configuration mode is aggregated by all resource elements RE or partial resource elements RE occupied by the second configuration mode of the at least two CSI-RSs;
- the configuration mode is a configuration mode of more than 8 CSI-RS ports, including a correspondence between each CSI-RS port and a resource element RE;
- the second configuration mode is a configuration mode of 8 CSI-RS ports, including each CSI-RS Correspondence between the port and the resource element RE.
- the embodiment of the present invention when the number of ports is increased to achieve the effect of improving the system throughput, the embodiment of the present invention implements the increase of the port on a PRB pair, thereby ensuring that the user terminal can receive the CSI-RS signal in time, thereby improving Channel evaluation efficiency.
- FIG. 5 is a schematic structural diagram of an apparatus for transmitting a channel state information-reference signal CSI-RS according to an embodiment of the present invention.
- the device is a base station, and includes: a determining module 501 and a transmitting module 502.
- the determining module 501 is configured.
- the resource element RE occupied by the first configuration mode is all resource elements occupied by at least two second configuration modes of the CSI-RS
- the RE or a part of the resource elements RE are aggregated;
- the first configuration mode is a configuration mode of more than 8 CSI-RS ports, including a correspondence between each CSI-RS port and a resource element RE;
- the second configuration mode is The configuration mode of the eight CSI-RS ports includes a correspondence between each CSI-RS port and the resource element RE.
- the transmission module 502 is configured to transmit the CSI-RS to the user equipment by using the first configuration mode.
- the first configuration mode includes 12 CSI-RS ports; the determining module 501 is specifically configured to: determine, according to the order of the port numbers, the first eight CSI-RS ports occupied by the first configuration mode. All the REs occupied by the second configuration mode, and the last four CSI-RS ports of the first configuration mode occupy another part or a plurality of other parts occupied by the second configuration mode. RE.
- the first configuration mode includes 16 CSI-RS ports; the determining module 501 is specifically configured to: determine, according to the order of the port numbers, the first 8 CSI-RS ports occupied by the first configuration mode. All the REs occupied by the second configuration mode, the last 8 CSI-RS ports of the first configuration mode occupying all the REs occupied by the other second configuration mode; or the first The last 8 CSI-RS ports of the configuration mode occupy some of the resource elements RE occupied by the plurality of the second configuration modes.
- the first configuration mode includes 12 or 16 CSI-RS ports.
- the determining module 501 is specifically configured to: determine that the second configuration mode is not in multiple PRB pairs in the time domain or the frequency domain direction. A part of the REs or all the REs that are aggregated, and establish a correspondence between the un-aggregated part of the REs or all the REs and the CSI-RS ports of the first configuration mode.
- the determining module 501 is further configured to: determine a total number of the first configuration modes in the plurality of PRB pairs in a time domain or a frequency domain direction.
- the apparatus for transmitting the channel state information-reference signal CSI-RS provided in this embodiment is used to implement the implementation technical solution of the method corresponding to FIG. 1, and the implementation principle and technical effects are similar, and details are not described herein again.
- FIG. 6 is a schematic structural diagram of an apparatus for transmitting a channel state information-reference signal CSI-RS according to another embodiment of the present invention.
- the device is a user equipment, and includes: a receiving module 601 and a storage module 602; and the receiving module. 601.
- the CSI-RS is used to receive the CSI-RS transmitted by the base station by using the first configuration mode.
- the storage module 602 is configured to store the CSI-RS.
- the first configuration mode of the CSI-RS is based on a physical condition of the base station.
- a resource block PRB pair is determined; the resource element RE occupied by the first configuration mode is aggregated by all resource elements RE or partial resource elements RE occupied by at least two second configuration modes of the CSI-RS;
- the first configuration mode is a configuration mode of more than 8 CSI-RS ports, including a correspondence between each CSI-RS port and a resource element RE;
- the second configuration mode is a configuration mode of 8 CSI-RS ports, including each Correspondence between CSI-RS ports and resource elements RE.
- the device for transmitting the channel state information-reference signal CSI-RS provided in this embodiment is used to implement the technical solution of the method corresponding to the user equipment, and the implementation principle and technical effects are similar, and details are not described herein again.
- FIG. 7 is a transmission channel state information-reference signal according to still another embodiment of the present invention.
- a schematic diagram of a device of a CSI-RS the device being a base station, comprising: a processor 701 and a transmitter 702; the processor 701, configured to determine a first configuration mode of the CSI-RS based on a physical resource block PRB pair;
- the resource element RE occupied by the first configuration mode is aggregated by all resource elements RE or partial resource elements RE occupied by at least two second configuration modes of the CSI-RS;
- the first configuration mode is greater than 8 Configuration mode of the CSI-RS port, including the correspondence between each CSI-RS port and the resource element RE;
- the second configuration mode is a configuration mode of 8 CSI-RS ports, including each CSI-RS port and resource Corresponding relationship of the element RE;
- the transmitter 702 is configured to transmit the CSI-RS to the user equipment by using the first configuration mode.
- the first configuration mode includes 12 CSI-RS ports; the processor 701 is specifically configured to: determine, according to the order of the port numbers, the first eight CSI-RS ports occupied by the first configuration mode. All the REs occupied by the second configuration mode, and the last four CSI-RS ports of the first configuration mode occupy another RE or a plurality of other REs occupied by the second configuration mode.
- the first configuration mode includes 16 CSI-RS ports.
- the processor 701 is specifically configured to determine, according to the order of the port numbers, the first 8 CSI-RS ports occupied by the first configuration mode. All the REs occupied by the second configuration mode, the last 8 CSI-RS ports of the first configuration mode occupying all the REs occupied by the other second configuration mode; or the first The last 8 CSI-RS ports of the configuration mode occupy some of the resource elements RE occupied by the plurality of the second configuration modes.
- the first configuration mode includes 12 or 16 CSI-RS ports.
- the processor 701 is specifically configured to: determine that the second configuration mode is not in multiple PRB pairs in the time domain or the frequency domain direction. A part of the REs or all the REs that are aggregated, and establish a correspondence between the un-aggregated part of the REs or all the REs and the CSI-RS ports of the first configuration mode.
- the processor 701 is further configured to: determine a total number of the first configuration modes in the plurality of PRB pairs in a time domain or a frequency domain direction.
- the apparatus for transmitting the channel state information-reference signal CSI-RS provided in this embodiment is used to implement the implementation technical solution of the method corresponding to FIG. 1, and the implementation principle and technical effects are similar, and details are not described herein again.
- FIG. 8 is a schematic structural diagram of an apparatus for transmitting a channel state information-reference signal CSI-RS according to another embodiment of the present invention.
- the device is a user equipment, and includes: a receiver 801 and a memory 802.
- the receiver 801 And for receiving, by the base station, the CSI-RS transmitted by using the first configuration mode;
- the memory 802 is configured to store the CSI-RS;
- the first configuration mode of the CSI-RS is determined by the base station based on a physical resource block PRB pair;
- the first configuration mode is a configuration mode of more than 8 CSI-RS ports, including each Corresponding relationship between the CSI-RS ports and the resource elements RE;
- the second configuration mode is a configuration mode of the eight CSI-RS ports, including the correspondence between each CSI-RS port and the resource element RE.
- the device for transmitting the channel state information-reference signal CSI-RS provided in this embodiment is used to implement the technical solution of the method corresponding to the user equipment, and the implementation principle and technical effects are similar, and details are not described herein again.
- the aforementioned program can be stored in a computer readable storage medium.
- the program when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.
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Abstract
Description
Claims (21)
- 一种传输信道状态信息-参考信号CSI-RS的方法,其特征在于,包括:基站基于一个物理资源块PRB对确定CSI-RS的第一配置模式;所述第一配置模式占用的资源元素RE由至少两种所述CSI-RS的第二配置模式所占用的全部资源元素RE或者部分资源元素RE聚合而成;所述第一配置模式为大于8个CSI-RS端口的配置模式,包括每个CSI-RS端口与资源元素RE的对应关系;所述第二配置模式为8个CSI-RS端口的配置模式,包括每个CSI-RS端口与资源元素RE的对应关系;所述基站采用所述第一配置模式向用户设备传输所述CSI-RS。
- 根据权利要求1所述的方法,其特征在于,所述第一配置模式包括12个CSI-RS端口;则所述基站基于一个PRB对确定CSI-RS的第一配置模式,包括:所述基站按照端口号的顺序确定所述第一配置模式的前8个CSI-RS端口占用任一种所述第二配置模式所占用的全部RE,所述第一配置模式的后4个CSI-RS端口占用其他一种或其他多种所述第二配置模式所占用的部分RE。
- 根据权利要求1所述的方法,其特征在于,所述第一配置模式包括16个CSI-RS端口;则所述基站基于一个PRB对,确定CSI-RS的第一配置模式,包括:所述基站按照端口号的顺序确定所述第一配置模式的前8个CSI-RS端口占用任一种所述第二配置模式所占用的全部RE,所述第一配置模式的后8个CSI-RS端口占用另一种所述第二配置模式所占用的全部RE;或者所述第一配置模式的后8个CSI-RS端口占用其他多种所述第二配置模式所占用的部分资源元素RE。
- 根据权利要求1所述的方法,其特征在于,所述第一配置模式包括12或16个CSI-RS端口;则所述基站基于一个PRB对确定CSI-RS的第一配置模式,包括:所述基站确定时域或者频域方向上多个PRB对中所述第二配置模式未被聚合的部分RE或者全部RE,并建立所述未被聚合的部分RE或者全部RE与所述第一配置模式的CSI-RS端口的对应关系。
- 根据权利要求1-4任一项所述的方法,其特征在于,还包括:所述基站确定时域或者频域方向上所述多个PRB对中的所述第一配置模式的总数目。
- 一种传输信道状态信息-参考信号CSI-RS的方法,其特征在于,包括:用户设备接收基站采用第一配置模式传输的CSI-RS;所述CSI-RS的第一配置模式是由所述基站基于一个物理资源块PRB对确定的;所述第一配置模式占用的资源元素RE由至少两种所述CSI-RS的第二配置模式所占用的全部资源元素RE或者部分资源元素RE聚合而成;所述第一配置模式为大于8个CSI-RS端口的配置模式,包括每个CSI-RS端口与资源元素RE的对应关系;所述第二配置模式为8个CSI-RS端口的配置模式,包括每个CSI-RS端口与资源元素RE的对应关系。
- 根据权利要求6所述的方法,其特征在于,所述第一配置模式包括12个CSI-RS端口;则所述CSI-RS的第一配置模式是由所述基站基于一个物理资源块PRB对确定的,包括:所述基站按照端口号的顺序确定所述第一配置模式的前8个CSI-RS端口占用任一种所述第二配置模式所占用的全部RE,所述第一配置模式的后4个CSI-RS端口占用其他一种或其他多种所述第二配置模式所占用的部分RE。
- 根据权利要求6所述的方法,其特征在于,所述第一配置模式包括16个CSI-RS端口;则所述CSI-RS的第一配置模式是由所述基站基于一个物理资源块PRB对确定的,包括:所述基站按照端口号的顺序确定所述第一配置模式的前8个CSI-RS端口占用任一种所述第二配置模式所占用的全部RE,所述第一配置模式的后8个CSI-RS端口占用另一种所述第二配置模式所占用的全部RE;或者所述第一配置模式的后8个CSI-RS端口占用其他多种所述第二配置模式所占用的部分资源元素RE。
- 根据权利要求6所述的方法,其特征在于,所述第一配置模式包括12或16个CSI-RS端口;则所述CSI-RS的第一配置模式是由所述基站基于一个物理资源块PRB对确定的,包括:所述基站确定时域或者频域方向上多个PRB对中所述第二配置模式未被聚合的部分RE或者全部RE,并建立所述未被聚合的部分RE或者全部RE与所述第一配置模式的CSI-RS端口的对应关系。
- 一种传输信道状态信息-参考信号CSI-RS的装置,所述装置为基站,其特征在于,包括:确定模块和传输模块;所述确定模块,用于基于一个物理资源块PRB对确定CSI-RS的第一配置模式;所述第一配置模式占用的资源元素RE由至少两种所述CSI-RS的第二配置模式所占用的全部资源元素RE或者部分资源元素RE聚合而成;所述第一配置模式为大于8个CSI-RS端口的配置模式,包括每个CSI-RS端口与资源元素RE的对应关系;所述第二配置模式为8个CSI-RS端口的配置模式,包括每个CSI-RS端口与资源元素RE的对应关系;所述传输模块,用于采用所述第一配置模式向用户设备传输所述CSI-RS。
- 根据权利要求10所述的装置,其特征在于,所述第一配置模式包括12个CSI-RS端口;则所述确定模块具体用于:按照端口号的顺序确定所述第一配置模式的前8个CSI-RS端口占用任一种所述第二配置模式所占用的全部RE,所述第一配置模式的后4个CSI-RS端口占用其他一种或其他多种所述第二配置模式所占用的部分RE。
- 根据权利要求10所述的装置,其特征在于,所述第一配置模式包括16个CSI-RS端口;则所述确定模块具体用于:按照端口号的顺序确定所述第一配置模式的前8个CSI-RS端口占用任一种所述第二配置模式所占用的全部RE,所述第一配置模式的后8个CSI-RS端口占用另一种所述第二配置模式所占用的全部RE;或者所述第一配置模式 的后8个CSI-RS端口占用其他多种所述第二配置模式所占用的部分资源元素RE。
- 根据权利要求10所述的装置,其特征在于,所述第一配置模式包括12或16个CSI-RS端口;则所述确定模块具体用于:确定时域或者频域方向上多个PRB对中所述第二配置模式未被聚合的部分RE或者全部RE,并建立所述未被聚合的部分RE或者全部RE与所述第一配置模式的CSI-RS端口的对应关系。
- 根据权利要求10-13任一项所述的装置,其特征在于,所述确定模块还用于:确定时域或者频域方向上所述多个PRB对中的所述第一配置模式的总数目。
- 一种传输信道状态信息-参考信号CSI-RS的装置,所述装置为用户设备,其特征在于,包括:接收模块和存储模块;所述接收模块,用于接收基站采用第一配置模式传输的CSI-RS;所述存储模块,用于存储所述CSI-RS;所述CSI-RS的第一配置模式是由所述基站基于一个物理资源块PRB对确定的;所述第一配置模式占用的资源元素RE由至少两种所述CSI-RS的第二配置模式所占用的全部资源元素RE或者部分资源元素RE聚合而成;所述第一配置模式为大于8个CSI-RS端口的配置模式,包括每个CSI-RS端口与资源元素RE的对应关系;所述第二配置模式为8个CSI-RS端口的配置模式,包括每个CSI-RS端口与资源元素RE的对应关系。
- 一种传输信道状态信息-参考信号CSI-RS的装置,所述装置为基站,其特征在于,包括:处理器和发送器;所述处理器,用于基于一个物理资源块PRB对确定CSI-RS的第一配置模式;所述第一配置模式占用的资源元素RE由至少两种所述CSI-RS的第二配置模式所占用的全部资源元素RE或者部分资源元素RE聚合而成;所述第一配置模式为大于8个CSI-RS端口的配置模式,包括每个CSI-RS端口与资源元素RE的对应关系;所述第二配置模式为8个CSI-RS端口的配置模式,包括每个CSI-RS端口与资源元素RE的对应关系;所述发送器,用于采用所述第一配置模式向用户设备传输所述CSI-RS。
- 根据权利要求16所述的装置,其特征在于,所述第一配置模式包括12个CSI-RS端口;则所述处理器具体用于:按照端口号的顺序确定所述第一配置模式的前8个CSI-RS端口占用任一种所述第二配置模式所占用的全部RE,所述第一配置模式的后4个CSI-RS端口占用其他一种或其他多种所述第二配置模式所占用的部分RE。
- 根据权利要求16所述的装置,其特征在于,所述第一配置模式包括16个CSI-RS端口;则所述处理器具体用于:按照端口号的顺序确定所述第一配置模式的前8个CSI-RS端口占用任一种所述第二配置模式所占用的全部RE,所述第一配置模式的后8个CSI-RS端口占用另一种所述第二配置模式所占用的全部RE;或者所述第一配置模式的后8个CSI-RS端口占用其他多种所述第二配置模式所占用的部分资源元素RE。
- 根据权利要求16所述的装置,其特征在于,所述第一配置模式包括12或16个CSI-RS端口;则所述处理器具体用于:确定时域或者频域方向上多个PRB对中所述第二配置模式未被聚合的部分RE或者全部RE,并建立所述未被聚合的部分RE或者全部RE与所述第一配置模式的CSI-RS端口的对应关系。
- 根据权利要求16-19任一项所述的装置,其特征在于,所述处理器还用于:确定时域或者频域方向上所述多个PRB对中的所述第一配置模式的总数目。
- 一种传输信道状态信息-参考信号CSI-RS的装置,所述装置为用户 设备,其特征在于,包括:接收器和存储器;所述接收器,用于接收基站采用第一配置模式传输的CSI-RS;所述存储器,用于存储所述CSI-RS;所述CSI-RS的第一配置模式是由所述基站基于一个物理资源块PRB对确定的;所述第一配置模式占用的资源元素RE由至少两种所述CSI-RS的第二配置模式所占用的全部资源元素RE或者部分资源元素RE聚合而成;所述第一配置模式为大于8个CSI-RS端口的配置模式,包括每个CSI-RS端口与资源元素RE的对应关系;所述第二配置模式为8个CSI-RS端口的配置模式,包括每个CSI-RS端口与资源元素RE的对应关系。
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EP15905079.8A EP3349521A4 (en) | 2015-09-30 | 2015-09-30 | Method and apparatus for transmitting channel state information-reference signal (csi-rs) |
PCT/CN2015/091211 WO2017054167A1 (zh) | 2015-09-30 | 2015-09-30 | 传输信道状态信息-参考信号csi-rs的方法及装置 |
JP2018516417A JP6630821B2 (ja) | 2015-09-30 | 2015-09-30 | チャネル状態情報参照信号csi−rsを送信するための方法及び装置 |
KR1020187012102A KR20180059902A (ko) | 2015-09-30 | 2015-09-30 | 채널 상태 정보 참조 신호 csi-rs를 전송하는 방법 및 장치 |
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EP2896240B1 (en) * | 2012-09-11 | 2017-12-27 | LG Electronics Inc. | Method and apparatus for transmitting channel state information-reference signals in wireless communication system |
WO2014047797A1 (zh) * | 2012-09-26 | 2014-04-03 | 华为技术有限公司 | 信道状态信息的测量方法、设备及系统 |
JP6114153B2 (ja) * | 2013-09-26 | 2017-04-12 | 株式会社Nttドコモ | 基地局、移動局、参照信号送信方法及びチャネル品質測定方法 |
CN104767592B (zh) * | 2014-01-02 | 2019-01-01 | 中国移动通信集团公司 | 一种csi-rs的端口配置、csi-rs传输的方法和设备 |
US9621243B2 (en) * | 2014-12-03 | 2017-04-11 | Texas Instruments Incorporated | Method and apparatus for CSI feedback in a MIMO wireless communication system with elevation beamforming |
EP3322110A4 (en) * | 2015-07-06 | 2018-06-27 | Samsung Electronics Co., Ltd. | Method and apparatus for measuring channel in mobile communication system |
US10897334B2 (en) * | 2015-08-31 | 2021-01-19 | Telefonaktiebolaget Lm Ericsson (Publ) | Reference signal configuration for cell coordination |
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2015
- 2015-09-30 JP JP2018516417A patent/JP6630821B2/ja active Active
- 2015-09-30 CN CN201580083434.5A patent/CN108141845A/zh active Pending
- 2015-09-30 KR KR1020187012102A patent/KR20180059902A/ko not_active Application Discontinuation
- 2015-09-30 EP EP15905079.8A patent/EP3349521A4/en not_active Withdrawn
- 2015-09-30 WO PCT/CN2015/091211 patent/WO2017054167A1/zh active Application Filing
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CN103120006A (zh) * | 2010-06-01 | 2013-05-22 | 中兴通讯股份有限公司 | Lte-advance系统中的csi-rs资源分配的方法和系统 |
WO2014107012A1 (en) * | 2013-01-02 | 2014-07-10 | Lg Electronics Inc. | Method and apparatus for receiving downlink radio signal |
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CN108141845A (zh) | 2018-06-08 |
JP2018530252A (ja) | 2018-10-11 |
JP6630821B2 (ja) | 2020-01-15 |
EP3349521A4 (en) | 2018-08-29 |
EP3349521A1 (en) | 2018-07-18 |
US20180287754A1 (en) | 2018-10-04 |
KR20180059902A (ko) | 2018-06-05 |
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