WO2017076128A1 - 一种csi-rs指示方法、基站及用户设备 - Google Patents
一种csi-rs指示方法、基站及用户设备 Download PDFInfo
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- WO2017076128A1 WO2017076128A1 PCT/CN2016/098806 CN2016098806W WO2017076128A1 WO 2017076128 A1 WO2017076128 A1 WO 2017076128A1 CN 2016098806 W CN2016098806 W CN 2016098806W WO 2017076128 A1 WO2017076128 A1 WO 2017076128A1
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- H—ELECTRICITY
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- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- 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
- H04B7/0632—Channel quality parameters, e.g. channel quality indicator [CQI]
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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
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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
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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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/27—Transitions between radio resource control [RRC] states
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
Definitions
- the present disclosure relates to the field of wireless communications, and in particular, to a channel state information reference signal (CSI-RS, Channel State Information-Reference Signals) indication method, system, base station, and user equipment (UE, User Equipment).
- CSI-RS channel state information reference signal
- UE User Equipment
- LTE Long Term Evolution
- WiMax Worldwide Interoperability for Microwave Access
- WLAN Wireless Local Area Networks
- MIMO two-dimensional 2D multiple-output multiple-output
- an embodiment of the present disclosure provides a CSI-RS indication method, system, base station, and UE.
- An embodiment of the present disclosure provides a CSI-RS indication method, where the method is applied to a base station, and the method includes:
- the first field represents a CSI-RS subframe configuration case
- the second field represents a channel state information CSI-RS configuration.
- the first field is subframeConfig-r12
- the second field is resourceConfig-r12
- the first field is subframeConfig-r11
- the second field is resourceConfig-r11 or resourceConfigList-r11;
- the first field is subframeConfig-r10
- the second field is resourceConfig-r10.
- the configuring the second field in the RRC signaling as a CSI-RS pattern in a special time slot includes:
- the CSI-RS configuration parameter indication table includes 20 CSI-RS configuration parameters with a port number of 1, 20 CSI-RS configuration parameters with a port number of 2, and 10 CSI-RS configuration parameters with a port number of 4, and Five CSI-RS configuration parameters with a port number of eight;
- the maximum value of the second field is 20;
- the maximum value of the resourceConfigList-r11 is 10, indicating multiple CSI-RS configuration parameters of the port number 4 and 8.
- 20 CSI-RS configuration parameters with port number 1 or 2 include: k' is 9, l' is 2, n s mod 2 is 0; k' is 8, l' is 2, n s mod 2 is 0; k' is 3, l' is 2, n s mod 2 is 0; k' is 2, l' is 2, n s mod 2 is 0; k' is 11, l' is 5, n s Mod 2 is 0; k' is 10, l' is 5, n s mod 2 is 0; k' is 7, l' is 5, n s mod 2 is 0; k' is 6, l' is 5, n s mod 2 is 0; k' is 5, l' is 5, n s mod 2 is 0; k' is 4, l' is 5, n s mod 2 is 0; k' is 1, l' is 5.
- n s mod 2 is 0; k' is 0, l' is 5, n s mod 2 is 0; k' is 9, l' is 5, n s mod 2 is 0; k' is 8, l' is 5.
- n s mod 2 is 0; k' is 3, l' is 5, n s mod 2 is 0; k' is 2, l' is 5, n s mod 2 is 0; k' is 9, l' is 2, n s mod 2 is 1; k' is 8, l' is 2, n s mod 2 is 1; k' is 3, l' is 2, n s mod 2 is 1; and k' is 2, l ' is 2, n s mod 2 is 1; among them,
- the location of the resource element RE occupied by the CSI-RS in the physical resource block PRB pair is represented by (k', l');k' represents the row where the RE is located, l' represents the column in which the RE is located, and n s represents the slot number of the slot. .
- 10 CSI-RS configuration parameters with port number 4 include: k' is 9, l' is 2, n s mod 2 is 0; k' is 8, l' is 2, and n s mod 2 is 0; k' is 11, l' is 5, n s mod 2 is 0; k' is 10, l' is 5, n s mod 2 is 0; k' is 7, l' is 5, n s mod 2 0; k' is 6, l' is 5, n s mod 2 is 0; k' is 5, l' is 5, n s mod 2 is 0; k' is 8, l' is 5, n s mod 2 is 0; k' is 9, l' is 2, n s mod 2 is 1; and k' is 8, l' is 2, n s mod 2 is 1;
- the position of the RE occupied by the CSI-RS in the PRB pair is represented by (k', l');k' indicates the row where the RE is located, l' indicates the column in which the RE is located, and n s indicates the slot number.
- the five CSI-RS configuration parameters of port number 8 include: k' is 9, l' is 2, n s mod 2 is 0; k' is 11, l' is 5, and n s mod 2 is 0; k' is 7, l' is 5, n s mod 2 is 0; k' is 9, l' is 5, n s mod 2 is 0; and k' is 9, l' is 2, n s mod 2 is 1; among them,
- the position of the RE occupied by the CSI-RS in the PRB pair is represented by (k', l');k' indicates the row where the RE is located, l' indicates the column in which the RE is located, and n s indicates the slot number.
- the second field in the RRC signaling is configured as a special time slot.
- CSI-RS pattern including:
- the correspondence relationship includes a correspondence between l′ and n s mod 2;
- l' in the special slot CSI-RS pattern is the difference between l' and 3 in the default CSI-RS pattern
- l' in the special slot CSI-RS pattern is the result of the summation of l' and 10 in the default CSI-RS pattern modulo 7;
- n s mod 2 is a special time slot CSI-RS
- the position of the RE occupied by the CSI-RS in the PRB pair is represented by (k', l');k' indicates the row where the RE is located, l' indicates the column in which the RE is located, and n s indicates the slot number.
- the configuring the second field in the RRC signaling as a CSI-RS pattern in a special time slot includes:
- the special slot CSI-RS pattern is shifted to the left by the default CSI-RS pattern by 3 orthogonal frequency division multiplexing (OFDM) symbols;
- OFDM orthogonal frequency division multiplexing
- the special slot CSI-RS pattern is 1' offset to the left by 4 OFDM symbols in the default CSI-RS pattern;
- the position of the RE occupied by the CSI-RS in the PRB pair is represented by (k', l'); k' represents the row where the RE is located, each behavior is 1 subcarrier, l' indicates the column where the RE is located, and each column is 1 OFDM symbol.
- the embodiment of the present disclosure further provides a CSI-RS indication method, where the method is applied to a UE, and the method includes:
- the first field represents a CSI-RS subframe configuration case
- the second field represents a channel state information CSI-RS configuration.
- the determining, according to the CSI-RS pattern indicated by the second field in the RRC signaling, the CSI-RS pattern in the special time slot including:
- the CSI-RS configuration parameter indication table includes 20 CSI-RS configuration parameters with a port number of 1, 20 CSI-RS configuration parameters with a port number of 2, and 10 CSI-RS configuration parameters with a port number of 4, and Five CSI-RS configuration parameters with a port number of eight;
- the 20 CSI-RS configuration parameters with port number 1 are the same as the 20 CSI-RS configuration parameters with port number 2.
- the determining, according to the CSI-RS pattern indicated by the second field in the RRC signaling, the CSI-RS pattern in the special time slot including:
- the correspondence relationship includes a correspondence relationship between l′ and n s mod 2;
- Determining, according to the correspondence relationship and a default CSI-RS pattern, a CSI-RS pattern in a special time slot including:
- n s mod 2 in the special time slot CSI-RS pattern is 0, except that in the default CSI-RS pattern, l' is greater than 3, and n s mod 2 is equal to 1 in the default CSI-RS pattern;
- the position of the RE occupied by the CSI-RS in the PRB pair is represented by (k', l');k' indicates the row where the RE is located, l' indicates the column in which the RE is located, and n s indicates the slot number.
- the determining, according to the CSI-RS pattern indicated by the second field in the RRC signaling, the CSI-RS pattern in the special time slot including:
- the configuration case is a CSI in a special time slot generated according to an offset between a CSI-RS pattern and a default CSI-RS pattern in a special time slot.
- the special slot CSI-RS pattern is offset to the left by 3 OFDM symbols by default CSI-RS pattern;
- the special slot CSI-RS pattern is 1' offset to the left by 4 OFDM symbols in the default CSI-RS pattern;
- the position of the RE occupied by the CSI-RS in the PRB pair is represented by (k', l'); k' represents the row where the RE is located, each behavior is 1 subcarrier, l' indicates the column where the RE is located, and each column is 1 OFDM symbol.
- the embodiment of the present disclosure further provides a base station, including: a generating unit and a sending unit;
- the generating unit is configured to generate RRC signaling indicating a CSI-RS resource configuration situation when the CSI-RS is transmitted through the DwPTS;
- the sending unit is configured to send the RRC signaling to the UE, where
- the generating unit When generating the RRC signaling indicating the CSI-RS resource configuration, the generating unit configures the first field in the RRC signaling as a special time slot, and configures the second field in the RRC signaling as a special time slot.
- the CSI-RS pattern in the configuration; the configured special time slot is used to indicate that the UE that meets the preset condition acquires the CSI-RS pattern indicated by the second field;
- the first field represents a CSI-RS subframe configuration case
- the second field represents a channel state information CSI-RS configuration.
- the generating unit is specifically configured to: configure the second field as a sequence number corresponding to a CSI-RS pattern in the special time slot in the CSI-RS configuration parameter indication table;
- the CSI-RS configuration parameter indication table includes 20 CSI-RS configuration parameters with a port number of 1, 20 CSI-RS configuration parameters with a port number of 2, and 10 CSI-RS configuration parameters with a port number of 4, and Five CSI-RS configuration parameters with a port number of eight;
- the 20 CSI-RS configuration parameters with port number 1 are the same as the 20 CSI-RS configuration parameters with port number 2.
- the generating unit is specifically configured to: configure the second field as a correspondence between a default CSI-RS pattern and a CSI-RS pattern in the special time slot; the corresponding relationship includes l′ and n s mod 2 correspondence; among them,
- l' in the special slot CSI-RS pattern is the difference between l' and 3 in the default CSI-RS pattern
- l' in the special slot CSI-RS pattern is the result of the summation of l' and 10 in the default CSI-RS pattern modulo 7;
- n s mod 2 is a special time slot CSI-RS
- the position of the RE occupied by the CSI-RS in the PRB pair is represented by (k', l');k' indicates the row where the RE is located, l' indicates the column in which the RE is located, and n s indicates the slot number.
- the generating unit is specifically configured to:
- the special slot CSI-RS pattern is offset to the left by 3 OFDM symbols by default CSI-RS pattern;
- the special slot CSI-RS pattern is 1' offset to the left by 4 OFDM symbols in the default CSI-RS pattern;
- the position of the RE occupied by the CSI-RS in the PRB pair is represented by (k', l'); k' represents the row where the RE is located, each behavior is 1 subcarrier, l' indicates the column where the RE is located, and each column is 1 OFDM symbol number.
- the embodiment of the present disclosure further provides a UE, including: a receiving unit, a first acquiring unit, and a second acquiring unit;
- the receiving unit is configured to: when transmitting a CSI-RS through the DwPTS, receive RRC signaling indicating a CSI-RS resource configuration situation;
- the first acquiring unit is configured to acquire a first field in the RRC signaling
- the second obtaining unit is configured to determine, according to the CSI-RS pattern indicated by the second field in the RRC signaling, when the configuration of the first field is determined to be a special time slot and the preset condition is met by itself.
- the first field represents a CSI-RS subframe configuration case
- the second field represents a channel state information CSI-RS configuration.
- the second acquiring unit is specifically configured to: obtain a sequence number corresponding to a CSI-RS pattern in the special time slot in the CSI-RS configuration parameter indication table indicated by the second field configuration; The number of CSI-RS ports and the sequence number, determining a CSI-RS pattern in a special time slot;
- the CSI-RS configuration parameter indication table includes 20 CSI-RS configuration parameters with a port number of 1, 20 CSI-RS configuration parameters with a port number of 2, and 10 CSI-RS configuration parameters with a port number of 4, and Five CSI-RS configuration parameters with a port number of eight;
- the 20 CSI-RS configuration parameters with port number 1 are the same as the 20 CSI-RS configuration parameters with port number 2.
- the second acquiring unit is specifically configured to:
- the correspondence relationship includes a correspondence between l′ and n s mod 2; and according to the correspondence Relationship and default CSI-RS pattern, determining a CSI-RS pattern in a special time slot;
- Determining, according to the correspondence relationship and a default CSI-RS pattern, a CSI-RS pattern in a special time slot including:
- n s mod 2 in the special time slot CSI-RS pattern is 0, except that in the default CSI-RS pattern, l' is greater than 3, and n s mod 2 is equal to 1 in the default CSI-RS pattern;
- the position of the RE occupied by the CSI-RS in the PRB is represented by (k', l');k' represents the row where the RE is located, l' represents the column in which the RE is located, and n s represents the slot number.
- the second acquiring unit is specifically configured to:
- the configuration case is a CSI in a special time slot generated according to an offset between a CSI-RS pattern and a default CSI-RS pattern in a special time slot.
- the RS configuration situation - the RS configuration situation; and determining the CSI-RS pattern in the special time slot according to the configuration and the default CSI-RS pattern;
- the special slot CSI-RS pattern is offset to the left by 3 OFDM symbols by default CSI-RS pattern;
- the special slot CSI-RS pattern is 1' offset to the left by 4 OFDM symbols in the default CSI-RS pattern;
- the position of the RE occupied by the CSI-RS in the PRB pair is represented by (k', l'); k' represents the row where the RE is located, each behavior is 1 subcarrier, l' indicates the column where the RE is located, and each column is 1 OFDM symbol.
- the embodiment of the present disclosure further provides a CSI-RS indication system, including: a base station and a UE;
- the base station is configured to: when the CSI-RS is transmitted through the DwPTS, generate RRC signaling indicating a CSI-RS resource configuration situation; and send the RRC signaling to the UE; where, generating, indicating CSI-RS resource configuration
- the first field in the RRC signaling is configured as a special time slot
- the second field in the RRC signaling is configured as a CSI-RS pattern in the special time slot
- the UE is configured to receive the RRC signaling, acquire a first field in the RRC signaling, and determine that the configuration of the first field is a special time slot, and if the preset condition is met by itself, Determining a CSI-RS pattern indicated by a second field in the RRC signaling, and determining a CSI-RS pattern in the special time slot;
- the first field represents a CSI-RS subframe configuration case
- the second field represents a channel state information CSI-RS configuration.
- the CSI-RS indication method, system, base station, and UE provided by the embodiments of the present disclosure generate RRC signaling indicating a CSI-RS resource configuration situation when transmitting a CSI-RS through the DwPTS; and send the RRC signaling to the
- the UE is configured to configure the first field in the RRC signaling as a special time slot and configure the second field in the RRC signaling to be special when the RRC signaling indicating the CSI-RS resource configuration is generated.
- the UE receives RRC signaling; acquires a first field in the RRC signaling; and when determining that the configuration of the first field is a special time slot, and the self meets a preset condition Determining, according to the CSI-RS pattern indicated by the second field in the RRC signaling, a CSI-RS pattern in a special time slot, where the first field indicates a CSI-RS subframe configuration, and the second field indicates The channel state information CSI-RS configuration, so that the relevant RRC signaling does not need to be modified, and the signaling overhead is greatly reduced.
- 1 is a schematic diagram of the principle and effect of 3D MIMO technology in the related art
- 2A-B are schematic diagrams showing CSI-RS patterns in an 8-port CSI-RS indication in the related art
- 3 is a CSI-RS configuration parameter indication table in the related art
- FIG. 4 is a schematic diagram of a design of an 8-port CSI-RS in a special time slot configuration #3, 4, and 8;
- 5 is a schematic diagram showing the design of an 8-port CSI-RS in a special time slot configuration #1, 2, 6, and 7;
- FIG. 6 is a schematic flowchart of a CSI-RS indication method on a base station side according to some embodiments of the present disclosure
- FIG. 7 is a schematic flowchart of a CSI-RS indication method on a UE side according to some embodiments of the present disclosure
- FIG. 8 is a schematic flowchart of a CSI-RS indication method according to some embodiments of the present disclosure.
- FIG. 9 is a schematic structural diagram of a base station according to some embodiments of the present disclosure.
- FIG. 10 is a schematic diagram of a structure of a UE according to some embodiments of the present disclosure.
- FIG. 11 is a block diagram showing the structure of a CSI-RS indication system, in accordance with some embodiments of the present disclosure.
- FIG. 1 Before describing the embodiments of the present disclosure, reference is made to FIG. 1 to understand the related content of 2D MIMO and 3D MIMO technologies.
- the antenna architecture is: using multiple array elements in the vertical dimension, that is, adopting N antennas to obtain higher antenna gain; and each antenna array element in the vertical dimension adopts a fixed weight Value to ensure that the desired beam pattern is obtained in the vertical dimension. Therefore, in this case, there is no way in the MIMO technology to use a precoding scheme in the vertical dimension.
- 3D MIMO In the 3D MIMO technology, in order to fully use the MIMO technology in the vertical dimension, different beams can be formed by controlling the weighting factors of different antenna elements in the vertical dimension, and the vertical dimension beam can be effectively distinguished, thereby providing a vertical dimension multi-user complex.
- the traditional LTE system supports the design of a maximum of 8 antennas.
- 3D MIMO expands the number of channels of the antenna and supports three-dimensional antenna configurations such as 16, 32, 64, and 128 channels.
- Figure 2 shows the CSI-RS pattern in the associated 8-port CSI-RS indication
- Figure 3 shows the associated configuration parameter indication table.
- the overhead of the CSI-RS configuration parameter is one resource element (RE, Resource Element) in the physical resource block (PRB) of the port.
- the CSI-RS has various configurations in the relevant standards. For example, in the 8-port Frequency Division Duplexing (FDD) system, there are five configurations (different with different fill colors). The higher layer signaling is used to inform the UE which CSI-RS configuration to use.
- FDD Frequency Division Duplexing
- the CSI-RS is not transmitted in the special time slot (DwPTS) of the Time Division Duplexing (TDD) system (The UE shall assume that CSI reference signals are not transmitted in the DwPTS ( s) in case of frame structure type 2).
- DwPTS special time slot
- TDD Time Division Duplexing
- Table 1 shows the configuration of special time slots. As can be seen from Table 1, for the special time slot configuration #1, 2, 3, 4, 6, 7, 8 (DwPTS contains 9 to 12 OFDM symbols), the CSI-RS can be transmitted in the DwPTS. . In other special time slot configurations, the DwPTS contains too few OFDM symbols, so it is not recommended to support CSI-RS transmission.
- the design of the 8-port CSI-RS that is, the CSI-RS pattern in the CSI-RS indication, when the CSI-RS is transmitted through the DwPTS as shown in FIGS. 4 and 5 has been proposed.
- 16 ports can be combined with two 8-port designs, and 12 ports can be combined with three 4-port designs or 8+4 designs.
- the UE when acquiring the CSI-RS configuration parameter information, acquires the CSI-RS transmission period and the subframe offset in the information unit (IE)-CSI-RS-Config in the TS36.331 by using the subframeConfig-r10. Then, the specific CSI-RS pattern is obtained through the resourceConfig-r10; or the UE obtains the CSI-RS transmission period and the subframe offset through the subframeConfig-r11 in the IE-CSI-RS-ConfigNZP, and then obtains the specific by the resourceConfig-r11.
- CSI-RS pattern when acquiring the CSI-RS configuration parameter information, acquires the CSI-RS transmission period and the subframe offset in the information unit (IE)-CSI-RS-Config in the TS36.331 by using the subframeConfig-r10. Then, the specific CSI-RS pattern is obtained through the resourceConfig-r10; or the UE obtains the CSI-RS transmission period and the subframe offset through the subframeConfig-r11 in the IE-
- the UE obtains the CSI-RS transmission period and the subframe offset in the subframeConfig-r11 in the IE-CSI-RS-ConfigZP, and obtains a specific CSI-RS pattern through the resourceConfigList-r11.
- the UE obtains the CSI-RS transmission period and the subframe offset in the subframeConfig-r12 in the CSI-IM-Config, and obtains the specific CSI-RS through the resourceConfig-r12. Pattern.
- CSI-RS configuration in the slot Considering that the 20 configurations of the CSI-RS in the newly added DwPTS are not included in the relevant RRC signaling resourceConfig-r12, resourceConfig-r11, resourceConfigList-r11, and resourceConfig-r10, a new signaling is needed to indicate the special time.
- CSI-RS configuration in the slot Fields specific to the R13 version of the CSI-RS configuration, such as resourceConfig-r13 and/or resourceConfigList-r13, may be added.
- the foregoing solution not only involves the standard modification of the RAN1, but also needs to modify the standard protocol of the RAN2, and the standard modification amount is large, that is, the related RRC signaling needs to be relatively modified, thus greatly increasing the signaling overhead.
- the base station when transmitting a CSI-RS through a DwPTS, the base station generates RRC signaling indicating a CSI-RS resource configuration situation; and transmits the RRC signaling to the UE;
- the RRC signaling indicating the CSI-RS resource configuration is generated, the first field in the RRC signaling is configured as a special time slot, and the second field in the RRC signaling is configured as a CSI in the special time slot.
- the UE receives the RRC signaling; acquires the first field in the RRC signaling; and when determining that the configuration of the first field is a special time slot, and the self meets the preset condition, according to the RRC signaling a CSI-RS pattern indicated by the second field, determining a CSI-RS pattern in the special time slot;
- the first field represents a CSI-RS subframe configuration case
- the second field represents a channel state information CSI-RS configuration.
- the embodiment provides a CSI-RS indication method, which is applied to a base station. As shown in FIG. 6, the method includes the following steps:
- Step 601 When transmitting a CSI-RS through the DwPTS, allocate a CSI-RS configuration parameter to the UE.
- Step 602 Generate RRC signaling indicating a CSI-RS resource configuration situation according to the CSI-RS configuration parameter information allocated to the UE, and send the RRC signaling to the UE.
- the first field in the RRC signaling is configured as a special time slot
- the second field in the RRC signaling is configured as a special time slot.
- the CSI-RS pattern in the configuration; the configured special time slot is used to indicate that the UE that meets the preset condition acquires the CSI-RS pattern indicated by the second field.
- the first field indicates a CSI-RS subframe configuration situation
- the second field indicates a channel state information CSI-RS configuration.
- the first field and the second field may follow related fields in the 3GPP Release 12 (R12) standard.
- the values of the first field and the second field are different for different protocol versions, specifically,
- the first field is subframeConfig-r12; the second field is resourceConfig-r12;
- the first field is subframeConfig-r11; the second field is resourceConfig-r11 or resourceConfigList-r11;
- the preset condition means that the UE is a new UE instead of a legacy UE.
- the legacy UE refers to a UE that complies with the 3GPP R12 version (ie, conforms to the 3GPP R12 standard) and before the 3GPP R12 version; correspondingly, the new UE refers to a UE that complies with the 3GPP R13 version (according to the 3GPP R13 standard).
- the legacy UE when the legacy UE receives the RRC signaling, and determines that the configuration of the first field in the RRC signaling is a special time slot, it is considered to be a mis-transmission.
- the configuring the second field in the RRC signaling to the CSI-RS pattern in the special time slot includes:
- the CSI-RS configuration parameter indication table includes 20 CSI-RS configuration parameters with a port number of 1, 20 CSI-RS configuration parameters with a port number of 2, and 10 CSI-RS configuration parameters with a port number of 4, and Five CSI-RS configuration parameters with a port number of eight;
- the 20 CSI-RS configuration parameters with port number 1 are the same as the 20 CSI-RS configuration parameters with port number 2.
- n s mod 2 is 1; k' is 8, l' is 2, n s mod 2 is 1; k' is 3, l' is 2, n s mod 2 is 1; and k' is 2, l' is 2. n s mod 2 is 1.
- the 10 CSI-RS configuration parameters with port number 4 include: k' is 9, l' is 2, n s mod 2 is 0; k' is 8, l' is 2, n s mod 2 is 0; k' 11, l' is 5, n s mod 2 is 0; k' is 10, l' is 5, n s mod 2 is 0; k' is 7, l' is 5, n s mod 2 is 0; '6, l' is 5, n s mod 2 is 0; k' is 5, l' is 5, n s mod 2 is 0; k' is 8, l' is 5, n s mod 2 is 0; k' is 9, l' is 2, n s mod 2 is 1; and k' is 8, l' is 2, and n s mod 2 is 1.
- Port number 8 five kinds of CSI-RS configuration parameter comprises: k 'is 9, l' is 2, n s mod 2 is 0; k 'is 11, l' is 5, n s mod 2 is 0; k ' 7, l' is 5, n s mod 2 is 0; k' is 9, l' is 5, n s mod 2 is 0; and k' is 9, l' is 2, and n s mod 2 is 1.
- the position of the RE occupied by the CSI-RS in the PRB pair is represented by (k', l');k' represents the row where the RE is located, l' represents the column in which the RE is located, and n s represents the slot number of the slot.
- Each subframe is two slots; mod represents the remainder.
- the base station side selects the CSI-RS pattern of FIG. 4 or FIG. 5 for CSI-RS transmission according to the special slot configuration.
- k' is numbered from 0 to 11 from bottom to top, and the number of l' is 0 to 6.
- serial numbers 0 to 19 are not limited in Table 2.
- the maximum value of the second field is 20;
- the maximum value of the resourceConfigList-r11 is 10, indicating that the number of ports is 4 and 8 CSI-RS configuration parameters, and the antenna port 1 or 2 is not included.
- the relevant CSI-RS pattern (such as the CSI-RS pattern shown in FIG. 2 and FIG. 3) is added.
- the configuring the second field in the RRC signaling to the CSI-RS pattern in the special time slot includes:
- the correspondence relationship includes a relationship of l′ and n s mod 2;
- l' in the special slot CSI-RS pattern is the difference between l' and 3 in the default CSI-RS pattern
- l' is the result of summation of l' and 10 in the default CSI-RS pattern in the special slot CSI-RS pattern, that is, (l'+ 10) mod7;
- n s mod 2 is a special time slot CSI-RS
- l' DwPTS indicates that the special slot CSI-RS pattern is l'; (n s mod2) DwPTS indicates n s mod 2 in the special slot CSI-RS pattern; l' indicates that the default CSI-RS pattern is l'; n s mod 2 represents a default pattern CSI-RS n s mod 2.
- the default CSI-RS pattern refers to a CSI-RS pattern in the related standard (3GPP R12 standard) (as shown in FIGS. 2 and 3).
- the OFDM symbol offset can also be used.
- the configuring the second field in the RRC signaling to the CSI-RS pattern in the special time slot includes:
- the special slot CSI-RS pattern is offset to the left by 3 OFDM symbols by default CSI-RS pattern;
- the special slot CSI-RS pattern is 1' offset to the left by 4 OFDM symbols in the default CSI-RS pattern;
- the position of the RE occupied by the CSI-RS in the PRB pair is represented by (k', l'); k' represents the row where the RE is located, each behavior is 1 subcarrier, l' indicates the column where the RE is located, and each column is 1 OFDM symbol.
- the embodiment further provides a CSI-RS indication method, which is applied to the UE. As shown in FIG. 7, the method includes the following steps:
- Step 701 When transmitting the CSI-RS through the DwPTS, receiving the CSI-RS resource configuration RRC signaling;
- Step 702 Acquire a first field in the RRC signaling.
- Step 703 Determine the CSI in the special time slot according to the CSI-RS pattern indicated by the second field in the RRC signaling, when it is determined that the configuration of the first field is a special time slot, and the preset condition is met by itself. -RS pattern.
- the first field indicates a CSI-RS subframe configuration situation
- the second field indicates a channel state information CSI-RS configuration.
- the values of the first field and the second field are different for different protocol versions, specifically,
- the first field is subframeConfig-r12; the second field is resourceConfig-r12;
- the first field is subframeConfig-r11; the second field is resourceConfig-r11 or resourceConfigList-r11;
- the preset condition means that the UE is a new UE instead of a legacy UE.
- the legacy UE refers to a UE that complies with the 3GPP R12 version (ie, conforms to the 3GPP R12 standard) and before the 3GPP R12 version; correspondingly, the new UE refers to a UE that complies with the 3GPP R13 version (according to the 3GPP R13 standard).
- the legacy UE when the legacy UE receives the RRC signaling, and determines that the configuration of the first field in the RRC signaling is a special time slot, it is considered to be a mis-transmission.
- the determining, according to the CSI-RS pattern indicated by the second field in the RRC signaling, the CSI-RS pattern in the special time slot specifically includes:
- the CSI-RS configuration parameter indication table includes 20 CSI-RS configuration parameters with a port number of 1, 20 CSI-RS configuration parameters with a port number of 2, and 10 CSI-RS configuration parameters with a port number of 4, And five CSI-RS configuration parameters with a port number of eight;
- the 20 CSI-RS configuration parameters with port number 1 are the same as the 20 CSI-RS configuration parameters with port number 2.
- n s mod 2 is 1; k' is 8, l' is 2, n s mod 2 is 1; k' is 3, l' is 2, n s mod 2 is 1; and k' is 2, l' is 2. n s mod 2 is 1.
- the 10 CSI-RS configuration parameters with port number 4 include: k' is 9, l' is 2, n s mod 2 is 0; k' is 8, l' is 2, n s mod 2 is 0; k' 11, l' is 5, n s mod 2 is 0; k' is 10, l' is 5, n s mod 2 is 0; k' is 7, l' is 5, n s mod 2 is 0; '6, l' is 5, n s mod 2 is 0; k' is 5, l' is 5, n s mod 2 is 0; k' is 8, l' is 5, n s mod 2 is 0; k' is 9, l' is 2, n s mod 2 is 1; and k' is 8, l' is 2, and n s mod 2 is 1.
- CSI-RS configuration parameter comprises: k 'is 9, l' is 2, n s mod 2 is 0; k 'is 11, l' is 5, n s mod 2 is 0; k ' 7, l' is 5, n s mod 2 is 0; k' is 9, l' is 5, n s mod 2 is 0; and k' is 9, l' is 2, n s mod 2 is 1
- the position of the RE occupied by the CSI-RS in the PRB pair is represented by (k', l');k' represents the row where the RE is located, l' represents the column in which the RE is located, and n s represents the slot number of the slot, each sub- The frame is two slots; mod represents the remainder.
- k' is numbered from 0 to 11 from bottom to top
- l' is numbered from 0 to 6.
- the maximum value of the second field is 20;
- the most of resourceConfigList-r11 The value range is 10, indicating multiple CSI-RS configuration parameters of port number 4 and 8, and does not include CSI-RS configuration of antenna port 1 or 2.
- the relevant CSI-RS pattern (such as the CSI-RS pattern shown in FIG. 2 and FIG. 3) is added.
- the determining, according to the CSI-RS pattern indicated by the second field in the RRC signaling, the CSI-RS pattern in the special time slot including:
- the correspondence relationship includes a correspondence relationship between l′ and n s mod 2;
- Determining, according to the correspondence relationship and a default CSI-RS pattern, a CSI-RS pattern in a special time slot including:
- n s mod 2 is 0 in the special slot CSI-RS pattern.
- l' DwPTS indicates that a special slot CSI-RS pattern is l'; (n s mod2) DwPTS indicates n s mod 2 in the special slot CSI-RS pattern; l' indicates that the default CSI-RS pattern is l'; s mod 2 represents n s mod 2 in the default CSI-RS pattern.
- the default CSI-RS pattern refers to a CSI-RS pattern in the related standard (3GPP R12 standard) (as shown in FIGS. 2 and 3).
- the OFDM symbol offset can also be used.
- a CSI-RS pattern in a special time slot including:
- the configuration case is a CSI in a special time slot generated according to an offset between a CSI-RS pattern and a default CSI-RS pattern in a special time slot.
- the special slot CSI-RS pattern is offset to the left by 3 OFDM symbols by default CSI-RS pattern;
- the special slot CSI-RS pattern is 1' offset to the left by 4 OFDM symbols in the default CSI-RS pattern;
- the position of the RE occupied by the CSI-RS in the PRB pair is represented by (k', l'); k' represents the row where the RE is located, each behavior is 1 subcarrier, l' indicates the column where the RE is located, and each column is 1 OFDM symbol.
- This embodiment further provides a CSI-RS indication method. As shown in FIG. 8, the method includes the following steps:
- Step 801 When transmitting a CSI-RS through the DwPTS, the base station allocates a CSI-RS configuration parameter to the UE; and generates RRC signaling indicating a CSI-RS resource configuration situation according to the CSI-RS configuration parameter information allocated to the UE; Transmitting the RRC signaling to the UE;
- the subframeConfig-r11 field in the RRC signaling is configured as a special time slot
- the resourceConfig-r11 field in the RRC signaling is configured as a special time slot.
- Step 802 The UE receives RRC signaling, acquires a subframeConfig-r11 field in the RRC signaling, and determines that the subframeConfig-r11 field is configured as a special time slot and meets a preset condition by itself.
- the CSI-RS pattern indicated by the resourceConfig-r11 field in the RRC signaling determines the CSI-RS pattern in the special time slot.
- the first field indicates a CSI-RS subframe configuration situation
- the second field indicates a channel state information CSI-RS configuration.
- the CSI-RS indication method when transmitting a CSI-RS through the DwPTS, the base station generates RRC signaling indicating a CSI-RS resource configuration situation; and sends the RRC signaling to the UE;
- the RRC signaling indicating the CSI-RS resource configuration is performed, the subframeConfig-r11 field in the RRC signaling is configured as a special time slot, and the resourceConfig-r11 field in the RRC signaling is configured as a CSI in a special time slot.
- the UE receives the RRC signaling; acquires the first field in the RRC signaling; and when it is determined that the configuration of the first field is a special time slot, and the self meets the preset condition, according to the a CSI-RS pattern indicated by a second field in the RRC signaling, determining a CSI-RS pattern in a special time slot, the first field indicating a CSI-RS subframe configuration situation, and the second field indicating channel state information CSI -RS configuration, only need to modify the CSI-RS chapter of the 36211 standard, that is, the configuration of the new DwPTS, the configuration can be described by adding a new form or formula, offset, and not modifying the 36331 standard.
- Related RRC signaling, new UE re-solution So no need to amend the relevant RRC signaling, greatly reducing the signaling overhead.
- the embodiment provides a base station.
- the base station includes: a generating unit 91 and a sending unit 92.
- the generating unit 91 is configured to generate RRC signaling indicating a CSI-RS resource configuration situation according to the CSI-RS configuration parameter information allocated for the UE;
- the sending unit 92 is configured to send the RRC signaling to the UE, where
- the generating unit 91 configures the first field in the RRC signaling as a special time slot, and configures the second field in the RRC signaling as a special CSI-RS pattern in the time slot; the configured special time slot is used to indicate that the preset condition is met
- the UE acquires a CSI-RS pattern indicated by the second field.
- the base station may further include an allocating unit, configured to allocate a CSI-RS configuration parameter to the UE when transmitting the CSI-RS through the DwPTS;
- the generating unit 91 is configured to generate RRC signaling indicating a CSI-RS resource configuration according to the CSI-RS configuration parameter information allocated for the UE.
- the first field and the second field may follow related fields in the 3GPP Release 12 (R12) standard.
- the values of the first field and the second field are different for different protocol versions, specifically,
- the first field is subframeConfig-r12; the second field is resourceConfig-r12;
- the first field is subframeConfig-r11; the second field is resourceConfig-r11 or resourceConfigList-r11;
- the preset condition means that the UE is a new UE instead of a legacy UE.
- the legacy UE refers to a UE that complies with the 3GPP R12 version (ie, conforms to the 3GPP R12 standard) and before the 3GPP R12 version; correspondingly, the new UE refers to a UE that complies with the 3GPP R13 version (according to the 3GPP R13 standard).
- the legacy UE when the legacy UE receives the RRC signaling, and determines that the configuration of the first field in the RRC signaling is a special time slot, it is considered to be a mis-transmission.
- the generating unit 91 is specifically configured to: configure the second field to be corresponding to a CSI-RS pattern in the special time slot in the CSI-RS configuration parameter indication table.
- the CSI-RS configuration parameter indication table includes 20 CSI-RS configuration parameters with a port number of 1, 20 CSI-RS configuration parameters with a port number of 2, and 10 CSI-RS configuration parameters with a port number of 4, and Five CSI-RS configuration parameters with a port number of eight;
- the 20 CSI-RS configuration parameters with port number 1 are the same as the 20 CSI-RS configuration parameters with port number 2.
- n s mod 2 is 1; k' is 8, l' is 2, n s mod 2 is 1; k' is 3, l' is 2, n s mod 2 is 1; and k' is 2, l' is 2. n s mod 2 is 1.
- the 10 CSI-RS configuration parameters with port number 4 include: k' is 9, l' is 2, n s mod 2 is 0; k' is 8, l' is 2, n s mod 2 is 0; k' 11, l' is 5, n s mod 2 is 0; k' is 10, l' is 5, n s mod 2 is 0; k' is 7, l' is 5, n s mod 2 is 0; '6, l' is 5, n s mod 2 is 0; k' is 5, l' is 5, n s mod 2 is 0; k' is 8, l' is 5, n s mod 2 is 0; k' is 9, l' is 2, n s mod 2 is 1; and k' is 8, l' is 2, and n s mod 2 is 1.
- Port number 8 five kinds of CSI-RS configuration parameter comprises: k 'is 9, l' is 2, n s mod 2 is 0; k 'is 11, l' is 5, n s mod 2 is 0; k ' 7, l' is 5, n s mod 2 is 0; k' is 9, l' is 5, n s mod 2 is 0; and k' is 9, l' is 2, and n s mod 2 is 1.
- the position of the RE occupied by the CSI-RS in the PRB pair is represented by (k', l');k' represents the row where the RE is located, l' represents the column in which the RE is located, and n s represents the slot number of the slot, each sub- The frame is two slots; mod represents the remainder.
- k' is numbered from 0 to 11 from bottom to top
- l' is numbered from 0 to 6.
- the maximum value of the second field is 20;
- the maximum value of the resourceConfigList-r11 is 10, indicating that the number of ports is 4 and 8 CSI-RS configuration parameters, and the antenna port 1 or 2 is not included.
- the relevant CSI-RS pattern (such as the CSI-RS pattern shown in FIG. 2 and FIG. 3) is added with a certain offset (3 or 4 symbols) to obtain the special time slot.
- CSI-RS pattern is added with a certain offset (3 or 4 symbols).
- the generating unit 91 is specifically configured to: configure the second field as a correspondence between a default CSI-RS pattern and a CSI-RS pattern in the special time slot; the corresponding relationship includes l′ and n s mod 2 correspondence; among them,
- l' in the special slot CSI-RS pattern is the difference between l' and 3 in the default CSI-RS pattern
- l' is the result of summation of l' and 10 in the default CSI-RS pattern in the special slot CSI-RS pattern, ie, (l'+10) ) mod7;
- n s mod 2 is a special time slot CSI-RS
- the special time slot CSI-RS pattern n s mod 2 is 0;
- the position of the RE occupied by the CSI-RS in the PRB pair is represented by (k', l');k' indicates the row where the RE is located, l' indicates the column in which the RE is located, and n s indicates the slot number.
- l' DwPTS indicates that in the CSI-RS pattern in the special slot, l'; (n s mod2) DwPTS indicates n s mod 2 in the CSI-RS pattern in the special slot; l' indicates a default CSI-RS pattern, l '; n s mod 2 represents a default pattern CSI-RS n s mod 2.
- the default CSI-RS pattern refers to a CSI-RS pattern in the related standard (3GPP R12 standard) (as shown in FIGS. 2 and 3).
- the OFDM symbol offset can also be used.
- the generating unit 91 is specifically configured to: generate a CSI-RS configuration in a special time slot according to an offset between a CSI-RS pattern and a default CSI-RS pattern in the special time slot;
- the special slot CSI-RS pattern is offset to the left by 3 OFDM symbols by default CSI-RS pattern;
- the special slot CSI-RS pattern is 1' offset to the left by 4 OFDM symbols in the default CSI-RS pattern;
- the position of the RE occupied by the CSI-RS in the PRB pair is represented by (k', l'); k' represents the row where the RE is located, each behavior is 1 subcarrier, l' indicates the column where the RE is located, and each column is 1 OFDM symbol.
- the allocating unit and generating unit 91 may be a central processing unit (CPU), a microprocessor (MCU, a Micro Control Unit), a digital signal processor (DSP), or A Field Programmable Gate Array (FPGA) is implemented; the transmitting unit 92 can be implemented by a transmitter in a base station.
- CPU central processing unit
- MCU microprocessor
- DSP digital signal processor
- FPGA Field Programmable Gate Array
- the embodiment further provides a UE.
- the UE includes: a receiving unit 101, a first obtaining unit 102, and a second acquiring unit 103;
- the receiving unit 101 is configured to receive RRC signaling indicating a CSI-RS resource configuration situation when transmitting a CSI-RS through the DwPTS.
- the first obtaining unit 102 is configured to acquire a first field in the RRC signaling
- the second obtaining unit 103 is configured to: according to the CSI-RS pattern indicated by the second field in the RRC signaling, when the configuration of the first field is determined to be a special time slot, and the preset condition is met by itself, The CSI-RS pattern in the special time slot is determined.
- the first field indicates a CSI-RS subframe configuration situation
- the second field indicates a channel state information CSI-RS configuration.
- the values of the first field and the second field are different for different protocol versions, specifically,
- the first field is subframeConfig-r12; the second field is resourceConfig-r12;
- the first field is subframeConfig-r11; the second word The segment is resourceConfig-r11 or resourceConfigList-r11;
- the preset condition means that the UE is a new UE instead of a legacy UE.
- the legacy UE refers to a UE that complies with the 3GPP R12 version (ie, conforms to the 3GPP R12 standard) and before the 3GPP R12 version; correspondingly, the new UE refers to a UE that complies with the 3GPP R13 version (according to the 3GPP R13 standard).
- the legacy UE when the legacy UE receives the RRC signaling, and determines that the configuration of the first field in the RRC signaling is a special time slot, it is considered to be a mis-transmission.
- the second obtaining unit 103 is specifically configured to: acquire the special time slot in the CSI-RS configuration parameter indication table of the second field configuration indication. a sequence number corresponding to the CSI-RS pattern in the medium; and determining a CSI-RS pattern in the special time slot according to the obtained number of CSI-RS ports and the sequence number;
- the CSI-RS configuration parameter indication table includes 20 CSI-RS configuration parameters with a port number of 1, 20 CSI-RS configuration parameters with a port number of 2, and 10 CSI-RS configuration parameters with a port number of 4, and Five CSI-RS configuration parameters with a port number of eight;
- the 20 CSI-RS configuration parameters with port number 1 are the same as the 20 CSI-RS configuration parameters with port number 2.
- n s mod 2 is 1; k' is 8, l' is 2, n s mod 2 is 1; k' is 3, l' is 2, n s mod 2 is 1; and k' is 2, l' is 2. n s mod 2 is 1.
- the 10 CSI-RS configuration parameters with port number 4 include: k' is 9, l' is 2, n s mod 2 is 0; k' is 8, l' is 2, n s mod 2 is 0; k' 11, l' is 5, n s mod 2 is 0; k' is 10, l' is 5, n s mod 2 is 0; k' is 7, l' is 5, n s mod 2 is 0; '6, l' is 5, n s mod 2 is 0; k' is 5, l' is 5, n s mod 2 is 0; k' is 8, l' is 5, n s mod 2 is 0; The order k' is 9, l' is 2, n s mod 2 is 1; and k' is 8, l' is 2, and n s mod 2 is 1.
- CSI-RS configuration parameter comprises: k 'is 9, l' is 2, n s mod 2 is 0; k 'is 11, l' is 5, n s mod 2 is 0; k ' 7, l' is 5, n s mod 2 is 0; k' is 9, l' is 5, n s mod 2 is 0; and k' is 9, l' is 2, n s mod 2 is 1
- the position of the RE occupied by the CSI-RS in the PRB pair is represented by (k', l');k' represents the row where the RE is located, l' represents the column in which the RE is located, and n s represents the slot number of the slot, each sub- The frame is two slots, which are 0 and 1, respectively; mod represents the remainder.
- k' is numbered from 0 to 11 from bottom to top
- l' is numbered from 0 to 6.
- the maximum value of the second field is 20;
- the maximum value of the resourceConfigList-r11 is 10, indicating that the number of ports is 4 and 8 CSI-RS configuration parameters, and the antenna port 1 or 2 is not included.
- the relevant CSI-RS pattern (such as the CSI-RS pattern shown in FIG. 2 and FIG. 3) is added.
- the second obtaining unit 103 is specifically configured to:
- the correspondence relationship includes a correspondence between l′ and n s mod 2; and according to the correspondence Relationship and default CSI-RS pattern, determining a CSI-RS pattern in a special time slot;
- Determining, according to the correspondence relationship and a default CSI-RS pattern, a CSI-RS pattern in a special time slot including:
- n s mod 2 is 0 in the special slot CSI-RS pattern.
- l' DwPTS indicates that the special slot CSI-RS pattern is l'; (n s mod2) DwPTS indicates n s mod 2 in the special slot CSI-RS pattern; l' indicates that the default CSI-RS pattern is l'; n s mod 2 represents a default pattern CSI-RS n s mod 2.
- the default CSI-RS pattern refers to a CSI-RS pattern in the related standard (3GPP R12 standard) (as shown in FIGS. 2 and 3).
- the OFDM symbol offset can also be used.
- the second obtaining unit 103 is specifically configured to: acquire a CSI-RS configuration in a special time slot indicated by the second field; and the configuration is based on a CSI-RS pattern and a default CSI in a special time slot. - the offset of the RS pattern, the CSI-RS configuration in the generated special time slot;
- the special slot CSI-RS pattern is offset to the left by 3 OFDM symbols by default CSI-RS pattern;
- the special slot CSI-RS pattern is 1' offset to the left by 4 OFDM symbols in the default CSI-RS pattern;
- the position of the RE occupied by the CSI-RS in the PRB pair is represented by (k', l'); k' represents the row where the RE is located, each behavior is 1 subcarrier, l' indicates the column where the RE is located, and each column is 1 OFDM symbol.
- the receiving unit 101 may be implemented by a receiver in the UE; the first obtaining unit 102 and the second obtaining unit 103 may be implemented by a CPU, an MCU, a DSP, or an FPGA in the UE.
- the embodiment further provides a CSI-RS indication system, as shown in FIG. 11, the system includes: a base station 111 and a UE 112;
- the base station 111 is configured to: when the CSI-RS is transmitted through the DwPTS, generate RRC signaling indicating a CSI-RS resource configuration situation; and send the RRC signaling to the UE 112; where, generate a CSI-RS
- the first field in the RRC signaling is configured as a special time slot
- the second field in the RRC signaling is configured as a CSI-RS pattern in the special time slot
- the UE 112 is configured to receive the RRC signaling, acquire a first field in the RRC signaling, and determine that the configuration of the first field is a special time slot, and if the preset condition is met by itself,
- the CSI-RS pattern indicated by the second field in the RRC signaling determines a CSI-RS pattern in a special time slot.
- the first field indicates a CSI-RS subframe configuration situation
- the second field indicates a channel state information CSI-RS configuration.
- the CSI-RS indication scheme when transmitting a CSI-RS through the DwPTS, the base station generates RRC signaling indicating a CSI-RS resource configuration situation; and sends the RRC signaling to the UE;
- the RRC signaling indicating the CSI-RS resource configuration is performed, the first field in the RRC signaling is configured as a special time slot, and the second field in the RRC signaling is configured as a CSI-RS in the special time slot.
- the UE receives RRC signaling; acquires a first field in the RRC signaling; and when determining that the configuration of the first field is a special time slot, and the self meets a preset condition, according to the RRC letter Determining a CSI-RS pattern in a special time slot, the first field indicating a CSI-RS subframe configuration, and the second field indicating
- the channel state information CSI-RS configuration you only need to modify the CSI-RS chapter in the 36211 standard, that is, the configuration in the new DwPTS.
- the configuration can be described in the form of a new table, formula, or offset, instead of the 36331 standard.
- the modification is performed, and the new UE is re-interpreted by using the related RRC signaling.
- the relevant RRC signaling does not need to be modified, and the signaling overhead is greatly reduced.
- embodiments of the present disclosure can be provided as a method, system, or computer program product. Accordingly, the present disclosure may take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware aspects. Moreover, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
- the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
- the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
- These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
- the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
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Abstract
Description
Claims (28)
- 一种信道状态信息参考信号CSI-RS指示方法,所述方法应用于基站,所述方法包括:当通过下行导频时隙DwPTS传输CSI-RS时,生成表示CSI-RS资源配置情况的无线资源控制RRC信令;将所述RRC信令发送给UE;其中,在生成表示CSI-RS资源配置情况的RRC信令时,将RRC信令中的第一字段配置为特殊时隙,并将所述RRC信令中的第二字段配置为特殊时隙中的CSI-RS图案;配置的特殊时隙用于指示满足预设条件的所述UE获取所述第二字段指示的CSI-RS图案;所述第一字段表示CSI-RS子帧配置情况,所述第二字段表示信道状态信息CSI-RS配置。
- 根据权利要求1所述的方法,其中,所述第一字段为subframeConfig-r12,所述第二字段为resourceConfig-r12;或者,所述第一字段为subframeConfig-r11,所述第二字段为resourceConfig-r11或resourceConfigList-r11;或者,所述第一字段为subframeConfig-r10,所述第二字段为resourceConfig-r10。
- 根据权利要求1所述的方法,其中,所述将所述RRC信令中的第二字段配置为特殊时隙中的CSI-RS图案,包括:将所述第二字段配置为CSI-RS配置参数指示表中所述特殊时隙中的CSI-RS图案对应的序号;所述CSI-RS配置参数指示表包含端口数为1的20种CSI-RS配置参数、端口数为2的20种CSI-RS配置参数、端口数为4的10种CSI-RS配置参数、以及端口数为8的5种CSI-RS配置参数;其中,端口数为1的20种CSI-RS配置参数与端口数为2的20种CSI-RS配置参数相同。
- 根据权利要求2所述的方法,其中,所述将所述RRC信令中的第二 字段配置为特殊时隙中的CSI-RS图案,包括:将所述第二字段配置为CSI-RS配置参数指示表中所述特殊时隙中的CSI-RS图案对应的序号;所述CSI-RS配置参数指示表包含端口数为1的20种CSI-RS配置参数、端口数为2的20种CSI-RS配置参数、端口数为4的10种CSI-RS配置参数、以及端口数为8的5种CSI-RS配置参数;其中,端口数为1的20种CSI-RS配置参数与端口数为2的20种CSI-RS配置参数相同。
- 根据权利要求4所述的方法,其中,当所述第二字段为resourceConfig-r12、resourceConfig-r11或resourceConfig-r10时,所述第二字段的最大取值范围为20;当所述第二字段为resourceConfigList-r11时,resourceConfigList-r11的最大取值范围为10,指示端口数为4的和8的多种CSI-RS配置参数。
- 根据权利要求3或4所述的方法,其中,端口数为1或2的20种CSI-RS配置参数包括:k′为9、l′为2、nsmod 2为0;k′为8、l′为2、nsmod 2为0;k′为3、l′为2、nsmod 2为0;k′为2、l′为2、nsmod 2为0;k′为11、l′为5、nsmod 2为0;k′为10、l′为5、nsmod 2为0;k′为7、l′为5、nsmod 2为0;k′为6、l′为5、nsmod 2为0;k′为5、l′为5、nsmod 2为0;k′为4、l′为5、nsmod 2为0;k′为1、l′为5、nsmod 2为0;k′为0、l′为5、nsmod 2为0;k′为9、l′为5、nsmod 2为0;k′为8、l′为5、nsmod 2为0;k′为3、l′为5、nsmod 2为0;k′为2、l′为5、nsmod 2为0;k′为9、l′为2、nsmod 2为1;k′为8、l′为2、nsmod 2为1;k′为3、l′为2、nsmod 2为1;以及k′为2、l′为2、nsmod 2为1;其中,CSI-RS占用的资源元素RE在物理资源块PRB对中的位置用(k′,l′)表示;k′表示RE所在的行,l′表示RE所在的列;ns表示时隙slot编号。
- 根据权利要求3或4所述的方法,其中,端口数为4的10种CSI-RS配置参数包括:k′为9、l′为2、nsmod 2为0;k′为8、l′为2、nsmod 2为0;k′为11、l′为5、nsmod 2为0;k′为10、l′为5、nsmod 2为0;k′为7、l′为5、nsmod 2为0;k′为6、l′为5、nsmod 2为0;k′为5、l′为5、nsmod 2为0; k′为8、l′为5、nsmod 2为0;k′为9、l′为2、nsmod 2为1;以及k′为8、l′为2、nsmod 2为1;其中,CSI-RS占用的RE在PRB对中的位置用(k′,l′)表示;k′表示RE所在的行,l′表示RE所在的列;ns表示slot编号。
- 根据权利要求3或4所述的方法,其中,端口数为8的5种CSI-RS配置参数包括:k′为9、l′为2、nsmod 2为0;k′为11、l′为5、nsmod 2为0;k′为7、l′为5、nsmod 2为0;k′为9、l′为5、nsmod 2为0;以及k′为9、l′为2、nsmod 2为1;其中,CSI-RS占用的RE在PRB对中的位置用(k′,l′)表示;k′表示RE所在的行,l′表示RE所在的列;ns表示slot编号。
- 根据权利要求1或2所述的方法,其中,所述将所述RRC信令中的第二字段配置为特殊时隙中的CSI-RS图案,包括:将所述第二字段配置为默认CSI-RS图案与所述特殊时隙中的CSI-RS图案的对应关系;所述对应关系包含l′及nsmod 2的对应关系;其中,当默认CSI-RS图案中l′大于3时,特殊时隙CSI-RS图案中l′为默认CSI-RS图案中l′与3之差;当默认CSI-RS图案中l′小于或等于3时,特殊时隙CSI-RS图案中l′为默认CSI-RS图案中l′与10求和的结果再模7;当默认CSI-RS图案中l′大于3,且默认CSI-RS图案中nsmod 2等于1时,特殊时隙CSI-RS图案中nsmod 2为1;除默认CSI-RS图案中l′大于3,且默认CSI-RS图案中nsmod 2等于1外的其它情况时,特殊时隙CSI-RS图案中nsmod 2为0;CSI-RS占用的RE在PRB对中的位置用(k′,l′)表示;k′表示RE所在的行,l′表示RE所在的列;ns表示slot编号。
- 根据权利要求1或2所述的方法,其中,所述将所述RRC信令中的第二字段配置为特殊时隙中的CSI-RS图案,包括:根据特殊时隙中CSI-RS图案与默认CSI-RS图案的偏移量,生成特殊时隙中CSI-RS配置情况;其中,当默认CSI-RS图案中l′大于3时,特殊时隙CSI-RS图案为默认CSI-RS图案向左偏移3个正交频分复用OFDM符号;当默认CSI-RS图案中l′小于或等于3时,特殊时隙CSI-RS图案为默认CSI-RS图案中l′向左偏移4个OFDM符号;CSI-RS占用的RE在PRB对中的位置用(k′,l′)表示;k′表示RE所在的行,每一行为1个子载波,l′表示RE所在的列,每一列为1个OFDM符号。
- 一种CSI-RS指示方法,所述方法应用于UE,所述方法包括:当通过DwPTS传输CSI-RS时,接收表示CSI-RS资源配置情况的RRC信令;获取所述RRC信令中的第一字段;当确定所述第一字段的配置为特殊时隙,且自身满足预设条件时,根据所述RRC信令中的第二字段指示的CSI-RS图案,确定特殊时隙中的CSI-RS图案;以及所述第一字段表示CSI-RS子帧配置情况,所述第二字段表示信道状态信息CSI-RS配置。
- 根据权利要求11所述的方法,其中,所述第一字段为subframeConfig-r12,所述第二字段为resourceConfig-r12;或者,所述第一字段为subframeConfig-r11,所述第二字段为resourceConfig-r11或resourceConfigList-r11;或者,所述第一字段为subframeConfig-r10,所述第二字段为、resourceConfig-r10。
- 根据权利要求11所述的方法,其中,所述根据所述RRC信令中的第二字段指示的CSI-RS图案,确定特殊时隙中的CSI-RS图案,包括:获取所述第二字段配置指示的CSI-RS配置参数指示表中所述特殊时隙中的CSI-RS图案对应的序号;根据获取的CSI-RS端口数及所述序号,确定特殊时隙中的CSI-RS图案;所述CSI-RS配置参数指示表包含端口数为1的20种CSI-RS配置参数、 端口数为2的20种CSI-RS配置参数、端口数为4的10种CSI-RS配置参数、以及端口数为8的5种CSI-RS配置参数;其中,端口数为1的20种CSI-RS配置参数与端口数为2的20种CSI-RS配置参数相同。
- 根据权利要求12所述的方法,其中,所述根据所述RRC信令中的第二字段指示的CSI-RS图案,确定特殊时隙中的CSI-RS图案,包括:获取所述第二字段配置指示的CSI-RS配置参数指示表中所述特殊时隙中的CSI-RS图案对应的序号;根据获取的CSI-RS端口数及所述序号,确定特殊时隙中的CSI-RS图案;所述CSI-RS配置参数指示表包含端口数为1的20种CSI-RS配置参数、端口数为2的20种CSI-RS配置参数、端口数为4的10种CSI-RS配置参数、以及端口数为8的5种CSI-RS配置参数;其中,端口数为1的20种CSI-RS配置参数与端口数为2的20种CSI-RS配置参数相同。
- 根据权利要求14所述的方法,其中,当所述第二字段为resourceConfig-r12、resourceConfig-r11或resourceConfig-r10时,所述第二字段的最大取值范围为20;当所述第二字段为resourceConfigList-r11时,resourceConfigList-r11的最大取值范围为10,指示端口数为4的和8的多种CSI-RS配置参数。
- 根据权利要求13或14所述的方法,其中,端口数为1或2的20种CSI-RS配置参数包括:k′为9、l′为2、nsmod 2为0;k′为8、l′为2、nsmod 2为0;k′为3、l′为2、nsmod 2为0;k′为2、l′为2、nsmod 2为0;k′为11、l′为5、nsmod 2为0;k′为10、l′为5、nsmod 2为0;k′为7、l′为5、nsmod 2为0;k′为6、l′为5、nsmod 2为0;k′为5、l′为5、nsmod 2为0;k′为4、l′为5、nsmod 2为0;k′为1、l′为5、nsmod 2为0;k′为0、l′为5、nsmod 2为0;k′为9、l′为5、nsmod 2为0;k′为8、l′为5、nsmod 2为0;k′为3、l′为5、nsmod 2为0;k′为2、l′为5、nsmod 2为0;k′为9、l′为2、nsmod 2为1;k′为8、l′为2、nsmod 2为1;k′为3、l′为2、nsmod 2为1;以及k′为 2、l′为2、nsmod 2为1;其中,CSI-RS占用的资源元素RE在物理资源块PRB对中的位置用(k′,l′)表示;k′表示RE所在的行,l′表示RE所在的列;ns表示时隙slot编号。
- 根据权利要求13或14所述的方法,其中,端口数为4的10种CSI-RS配置参数包括:k′为9、l′为2、nsmod 2为0;k′为8、l′为2、nsmod 2为0;k′为11、l′为5、nsmod 2为0;k′为10、l′为5、nsmod 2为0;k′为7、l′为5、nsmod 2为0;k′为6、l′为5、nsmod 2为0;k′为5、l′为5、nsmod 2为0;k′为8、l′为5、nsmod 2为0;k′为9、l′为2、nsmod 2为1;以及k′为8、l′为2、nsmod 2为1;其中,CSI-RS占用的RE在PRB对中的位置用(k′,l′)表示;k′表示RE所在的行,l′表示RE所在的列;ns表示slot编号。
- 根据权利要求13或14所述的方法,其中,端口数为8的5种CSI-RS配置参数包括:k′为9、l′为2、nsmod 2为0;k′为11、l′为5、nsmod 2为0;k′为7、l′为5、nsmod 2为0;k′为9、l′为5、nsmod 2为0;以及k′为9、l′为2、nsmod 2为1;其中,CSI-RS占用的RE在PRB对中的位置用(k′,l′)表示;k′表示RE所在的行,l′表示RE所在的列;ns表示slot编号。
- 根据权利要求11或12所述的方法,其中,所述根据所述RRC信令中的第二字段指示的CSI-RS图案,确定特殊时隙中的CSI-RS图案,包括:获取所述第二字段指示的默认CSI-RS图案与所述特殊时隙中的CSI-RS图案的对应关系;所述对应关系包含l′及nsmod 2的对应关系;根据所述对应关系及默认CSI-RS图案,确定特殊时隙中的CSI-RS图案;其中,所述根据所述对应关系及默认CSI-RS图案,确定特殊时隙中的CSI-RS图案,包括:当默认CSI-RS图案中l′大于3时,将为默认CSI-RS图案中l′与3求差,得到特殊时隙CSI-RS图案中l″;当默认CSI-RS图案中l′小于或等于3时,确定特殊时隙CSI-RS图案中l′为默认CSI-RS图案中l′与10求和的结果再模7;当默认CSI-RS图案中l′大于3,且默认CSI-RS图案中nsmod 2等于1时,确定特殊时隙CSI-RS图案中nsmod 2为1;除默认CSI-RS图案中l′大于3,且默认CSI-RS图案中nsmod 2等于1外的其它情况时,确定特殊时隙CSI-RS图案中nsmod 2为0;CSI-RS占用的RE在PRB对中的位置用(k′,l′)表示;k′表示RE所在的行,l′表示RE所在的列;ns表示slot编号。
- 根据权利要求11或12所述的方法,其中,所述根据所述RRC信令中的第二字段指示的CSI-RS图案,确定特殊时隙中的CSI-RS图案,包括:获取所述第二字段指示的特殊时隙中CSI-RS配置情况;所述配置情况为根据特殊时隙中CSI-RS图案与默认CSI-RS图案的偏移量,生成的特殊时隙中CSI-RS配置情况;根据所述配置情况及默认CSI-RS图案,确定特殊时隙中的CSI-RS图案;其中,当默认CSI-RS图案中l′大于3时,特殊时隙CSI-RS图案为默认CSI-RS图案向左偏移3个OFDM符号;当默认CSI-RS图案中l′小于或等于3时,特殊时隙CSI-RS图案为默认CSI-RS图案中l′向左偏移4个OFDM符号;CSI-RS占用的RE在PRB对中的位置用(k′,l′)表示;k′表示RE所在的行,每一行为1个子载波,l′表示RE所在的列,每一列为1个OFDM符号。
- 一种基站,包括生成单元以及发送单元,其中,所述生成单元,用于当通过DwPTS传输CSI-RS时,生成表示CSI-RS资源配置情况的RRC信令;所述发送单元,用于将所述RRC信令发送给UE;其中,生成表示CSI-RS资源配置情况的RRC信令时,所述生成单元将RRC信令中的第一字段配置为特殊时隙,并将所述RRC信令中的第二字段配置为特殊时隙中的CSI-RS图案;配置的特殊时隙用于指示满足预设条件的所述UE获取所述第二字段指示的CSI-RS图案;所述第一字段表示CSI-RS子帧配置情况,所述第二字段表示信道状态信 息CSI-RS配置。
- 根据权利要求21所述的基站,其中,所述生成单元,具体用于:将所述第二字段配置为CSI-RS配置参数指示表中所述特殊时隙中的CSI-RS图案对应的序号;所述CSI-RS配置参数指示表包含端口数为1的20种CSI-RS配置参数、端口数为2的20种CSI-RS配置参数、端口数为4的10种CSI-RS配置参数、以及端口数为8的5种CSI-RS配置参数;其中,端口数为1的20种CSI-RS配置参数与端口数为2的20种CSI-RS配置参数相同。
- 根据权利要求21或22所述的基站,所述生成单元,具体用于:将所述第二字段配置为默认CSI-RS图案与所述特殊时隙中的CSI-RS图案的对应关系;所述对应关系包含l′及nsmod 2的对应关系;其中,当默认CSI-RS图案中l′大于3时,特殊时隙CSI-RS图案中l′为默认CSI-RS图案中l′与3之差;当默认CSI-RS图案中l′小于或等于3时,特殊时隙CSI-RS图案中l′为默认CSI-RS图案中l′与10求和的结果再模7;当默认CSI-RS图案中l′大于3,且默认CSI-RS图案中nsmod 2等于1时,特殊时隙CSI-RS图案中nsmod 2为1;除默认CSI-RS图案中l′大于3,且默认CSI-RS图案中nsmod 2等于1外的其它情况时,特殊时隙CSI-RS图案中nsmod 2为0;CSI-RS占用的RE在PRB对中的位置用(k′,l′)表示;k′表示RE所在的行,l′表示RE所在的列;ns表示slot编号。
- 根据权利要求21所述的基站,其中,所述生成单元,具体用于:根据特殊时隙中CSI-RS图案与默认CSI-RS图案的偏移量,生成特殊时隙中CSI-RS配置情况;其中,当默认CSI-RS图案中l′大于3时,特殊时隙CSI-RS图案为默认CSI-RS图案向左偏移3个OFDM符号;当默认CSI-RS图案中l′小于或等于3时,特殊时隙CSI-RS图案为默认CSI-RS图案中l′向左偏移4个OFDM符号;CSI-RS占用的RE在PRB对中的位置用(k′,l′)表示;k′表示RE所在的行,每一行为1个子载波,l′表示RE所在的列,每一列为1个OFDM符号。
- 一种UE,包括:接收单元、第一获取单元以及第二获取单元;其中,所述接收单元,用于当通过DwPTS传输CSI-RS时,接收表示CSI-RS资源配置情况的RRC信令所述第一获取单元,用于获取所述RRC信令中的第一字段;所述第二获取单元,用于当确定所述第一字段的配置为特殊时隙,且自身满足预设条件时,根据所述RRC信令中的第二字段指示的CSI-RS图案,确定特殊时隙中的CSI-RS图案;所述第一字段表示CSI-RS子帧配置情况,所述第二字段表示信道状态信息CSI-RS配置。
- 根据权利要求25所述的UE,其中,所述第二获取单元,具体用于:获取所述第二字段配置指示的CSI-RS配置参数指示表中所述特殊时隙中的CSI-RS图案对应的序号;并根据获取的CSI-RS端口数及所述序号,确定特殊时隙中的CSI-RS图案;所述CSI-RS配置参数指示表包含端口数为1的20种CSI-RS配置参数、端口数为2的20种CSI-RS配置参数、端口数为4的10种CSI-RS配置参数、以及端口数为8的5种CSI-RS配置参数;其中,端口数为1的20种CSI-RS配置参数与端口数为2的20种CSI-RS配置参数相同。
- 根据权利要求25或26所述的UE,其中,所述第二获取单元,具体用于:获取所述第二字段指示的默认CSI-RS图案与所述特殊时隙中的CSI-RS图案的对应关系;所述对应关系包含l′及nsmod 2的对应关系;并根据所述对应关系及默认CSI-RS图案,确定特殊时隙中的CSI-RS图案;其中,所述根据所述对应关系及默认CSI-RS图案,确定特殊时隙中的CSI-RS图案,包括:当默认CSI-RS图案中l′大于3时,将默认CSI-RS图案中l′与3求差, 得到特殊时隙CSI-RS图案中l′;当默认CSI-RS图案中l′小于或等于3时,确定特殊时隙CSI-RS图案中l′为默认CSI-RS图案中l′与10求和的结果再模7;当默认CSI-RS图案中l′大于3,且默认CSI-RS图案中nsmod 2等于1时,确定特殊时隙CSI-RS图案中nsmod 2为1;除默认CSI-RS图案中l′大于3,且默认CSI-RS图案中nsmod 2等于1外的其它情况时,确定特殊时隙CSI-RS图案中nsmod 2为0;CSI-RS占用的RE在PRB中的位置用(k′,l′)表示;k′表示RE所在的行,l′表示RE所在的列;ns表示slot编号。
- 根据权利要求25或26所述的UE,其中,所述所述第二获取单元,具体用于:获取所述第二字段指示的特殊时隙中CSI-RS配置情况;所述配置情况为根据特殊时隙中CSI-RS图案与默认CSI-RS图案的偏移量,生成的特殊时隙中CSI-RS配置情况;并根据所述配置情况及默认CSI-RS图案,确定特殊时隙中的CSI-RS图案;其中,当默认CSI-RS图案中l′大于3时,特殊时隙CSI-RS图案为默认CSI-RS图案向左偏移3个OFDM符号;当默认CSI-RS图案中l′小于或等于3时,特殊时隙CSI-RS图案为默认CSI-RS图案中l′向左偏移4个OFDM符号;CSI-RS占用的RE在PRB对中的位置用(k′,l′)表示;k′表示RE所在的行,每一行为1个子载波,l′表示RE所在的列,每一列为1个OFDM符号。
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104365136A (zh) * | 2012-06-15 | 2015-02-18 | Lg电子株式会社 | 发送信道状态信息的方法和用户设备以及接收信道状态信息的方法和基站 |
US20150249972A1 (en) * | 2012-12-17 | 2015-09-03 | Lg Electronics Inc. | Method and user device for receiving uplink control information, and method and base station for transmitting uplink control information |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2456154B1 (en) * | 2009-09-15 | 2018-12-05 | LG Electronics Inc. | Method and apparatus for transmitting a downlink reference signal in a wireless communication system supporting multiple antennas |
KR101790505B1 (ko) * | 2010-06-01 | 2017-11-21 | 주식회사 골드피크이노베이션즈 | 서브프레임 구성에 따른 채널상태정보-기준신호 할당 장치 및 방법 |
EP3726769A1 (en) * | 2012-07-02 | 2020-10-21 | LG Electronics Inc. | Method and device for reporting channel state information in wireless communication system |
US9106386B2 (en) * | 2012-08-03 | 2015-08-11 | Intel Corporation | Reference signal configuration for coordinated multipoint |
US9787450B2 (en) | 2012-08-30 | 2017-10-10 | Lg Electronics Inc. | Method and apparatus for estimating channel in wireless communication system |
EP2946589A4 (en) | 2013-01-17 | 2016-08-24 | Intel Ip Corp | METHOD FOR INSERTING SMALL CELLS AS SECONDARY CELLS FOR A USER DEVICE |
CN104995855B (zh) * | 2013-01-17 | 2018-10-19 | 英特尔Ip公司 | 长期演进无线网络中的时分双工系统的信道状态信息参考信号模式 |
EP2946490A4 (en) | 2013-01-17 | 2016-12-28 | Intel Ip Corp | LEGAL BEGINNING FOR DEVICE-TO-DEVICE (D2D) COMMUNICATIONS |
CN104871447B (zh) | 2013-01-17 | 2018-02-23 | 英特尔Ip公司 | 在无线通信网络中映射特殊子帧 |
US20150327247A1 (en) | 2013-01-17 | 2015-11-12 | Intel IP Corporation | Channel quality indication for fallback transmission mode over new carrier type |
WO2014113190A1 (en) | 2013-01-17 | 2014-07-24 | Intel IP Corporation | Method, apparatus and system for managing bearers in a wireless communication system |
WO2014113084A1 (en) | 2013-01-17 | 2014-07-24 | Intel IP Corporation | Systems and methods for efficient traffic offload without service disruption |
EP2946606A4 (en) | 2013-01-17 | 2016-12-21 | Intel Ip Corp | DISCOVERY SIGNAL IN A SMALL CELL CLUSTER |
EP2946587A4 (en) | 2013-01-17 | 2016-09-28 | Intel Ip Corp | CENTRALIZED PARTITIONING OF USER DEVICES IN A HETEROGENIC WIRELESS NETWORK |
US10257849B2 (en) | 2013-01-17 | 2019-04-09 | Intel IP Corporation | Method, apparatus, and system for handling in-device coexistence interference in a wireless network |
EP2946525B1 (en) | 2013-01-17 | 2020-06-24 | Intel IP Corporation | Presence service using ims based dash service |
US9357463B2 (en) | 2013-01-17 | 2016-05-31 | Intel IP Corporation | Techniques and systems for extended discontinuous reception |
KR101828757B1 (ko) | 2013-01-17 | 2018-02-12 | 인텔 아이피 코포레이션 | 셀룰러 네트워크 상에서 비-셀룰러 액세스 네트워크 정보를 통신하는 장치, 시스템 및 방법 |
CN104885389B (zh) | 2013-01-17 | 2018-05-11 | 英特尔Ip公司 | 用于时分双工(tdd)传输的上行链路(ul)和下行链路(dl)帧资源的动态配置 |
CN109088714B (zh) | 2013-01-17 | 2021-06-15 | 苹果公司 | 用于传递安全密钥信息的系统和方法 |
WO2014113073A1 (en) | 2013-01-17 | 2014-07-24 | Intel IP Corporation | Device-to-device discovery with direct radio signals |
US10419174B2 (en) * | 2014-03-30 | 2019-09-17 | Lg Electronics Inc. | Method for configuring an interference measurement resource in a wireless communication system, and apparatus for thereof |
US10206132B2 (en) * | 2014-05-27 | 2019-02-12 | Lg Electronics Inc. | Method and apparatus for performing measurement using discovery reference signal (DRS) in wireless communication system |
WO2017078409A1 (ko) * | 2015-11-03 | 2017-05-11 | 엘지전자(주) | 무선 통신 시스템에서 채널 상태 정보 참조 신호의 송수신 방법 및 이를 위한 장치 |
-
2015
- 2015-11-05 CN CN201510746859.1A patent/CN106685500B/zh active Active
-
2016
- 2016-09-13 US US15/773,567 patent/US10581671B2/en active Active
- 2016-09-13 WO PCT/CN2016/098806 patent/WO2017076128A1/zh active Application Filing
- 2016-09-13 EP EP16861396.6A patent/EP3373467B1/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104365136A (zh) * | 2012-06-15 | 2015-02-18 | Lg电子株式会社 | 发送信道状态信息的方法和用户设备以及接收信道状态信息的方法和基站 |
US20150249972A1 (en) * | 2012-12-17 | 2015-09-03 | Lg Electronics Inc. | Method and user device for receiving uplink control information, and method and base station for transmitting uplink control information |
Non-Patent Citations (3)
Title |
---|
"Physical Channels and Modulation (Release 12", 3GPPTS 36.211 V12.7.0, 30 September 2015 (2015-09-30), pages 1 - 6 and 106-110, XP055382122 * |
CMCC: "Discussion on Additional Special Subframe Configuration", 3GPP TSG-RAN WG1 #68BIS R1-121712, 30 March 2012 (2012-03-30), pages 1 - 6, XP050599971 * |
See also references of EP3373467A4 * |
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