WO2016116006A1 - Channel state information feedback method, and downlink reference signal sending method and device - Google Patents

Channel state information feedback method, and downlink reference signal sending method and device Download PDF

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Publication number
WO2016116006A1
WO2016116006A1 PCT/CN2016/070908 CN2016070908W WO2016116006A1 WO 2016116006 A1 WO2016116006 A1 WO 2016116006A1 CN 2016070908 W CN2016070908 W CN 2016070908W WO 2016116006 A1 WO2016116006 A1 WO 2016116006A1
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dimension
antenna ports
reference signal
downlink reference
vertical dimension
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PCT/CN2016/070908
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French (fr)
Chinese (zh)
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李传军
苏昕
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电信科学技术研究院
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Publication of WO2016116006A1 publication Critical patent/WO2016116006A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to a channel state information feedback method, a downlink reference signal sending method, and an apparatus.
  • LTE Long Term Evolution
  • Rel-9 focuses on multi-user MIMO (Multi-User MIMO) technology, and supports up to 4 MU-MIMO (Multi-User MIMO) transmissions in Transmission Mode (TM)-8.
  • TM Transmission Mode
  • Rel-10 further improves the channel through the introduction of 8-port Channel State Information-Reference Signals (CSI-RS), UE-specific Reference Signal (URS) and multi-granular codebooks.
  • CSI-RS Channel State Information-Reference Signals
  • URS UE-specific Reference Signal
  • multi-granular codebooks multi-granular codebooks.
  • the spatial resolution of the status information measurement and further extends the transmission capability of single-user MIMO (SU-MIMO) to a maximum of 8 data layers.
  • the performance gain of a MIMO system is derived from the spatial freedom that an antenna system can achieve.
  • the spatial freedom mentioned here is the number of CSI-RS ports supported by the antenna system.
  • the standard supports up to 8 CSI-RS ports for the antenna system, that is, the maximum capacity for the antenna system can be obtained.
  • a user equipment For a communication system that uses a mechanism for measuring and feeding back channel state information (CSI) based on a downlink reference signal, a user equipment (User Equipment, UE) feeds back a precoding matrix code index (PMI) to the base station. , Rank Indicator (RI) and Channel Quality Indicator (CQI).
  • PMI precoding matrix code index
  • RI Rank Indicator
  • CQI Channel Quality Indicator
  • the PMI, RI, and CQI fed back by the UE are calculated based on the channel information measured by the UE through the CSI-RS.
  • This channel information should include information on all CSI-RS ports of the antenna system in order to take full advantage of the spatial freedom of the antenna system.
  • a large-scale antenna is an antenna array composed of a large-scale transceiver and a large-scale antenna oscillator.
  • the antenna space degree of freedom is much larger than 8, such as 16, 32, 64, 128, 256, 512 and so on.
  • the spatial resolution of the channel state information measurement is directly dependent on the number of CSI-RS ports, that is, the number of CSI-RS ports that need to be supported is much larger than 8.
  • a large-scale antenna array is a large-scale active antenna array in a planar form of N H ⁇ N V dimensional degrees of freedom consisting of horizontal dimensions of N h and vertical dimensions of N v antenna elements and radio frequency devices.
  • N h ⁇ 8 and N v ⁇ 8 two sets of CSI-RS ports can be configured for one UE to ensure that the UE can measure all spatial degrees of freedom of the antenna system. And the UE feeds back a pair of CSIs to the base station. This corresponds to a mass CSIs active antenna N v an antenna ports, an additional mass of the active antenna corresponds to a row of antenna ports N h.
  • the two sets of CSI-RS ports can be configured in the same subframe or in different subframes.
  • the two sets of CSI-RS ports measure the vertical dimension line channel (H v ) and the horizontal dimension column channel (H h ), respectively.
  • the PMI, RI and CQI can be calculated by measuring the vertical dimension row channel (H v ) and the horizontal dimension column channel H h .
  • each CSI-RS port can only support a maximum of 8 spatial degrees of freedom, when N h >8 or N v >8, a new downlink reference can be introduced to ensure the spatial resolution of downlink channel state information measurement. Signal port, but this will bring significant time-frequency resource overhead. If the number of downlink reference signal ports is limited, the spatial resolution of downlink channel state information measurement cannot be guaranteed, and thus the performance advantage of massive MIMO cannot be exerted.
  • An object of the present disclosure is to provide a channel state information feedback method, a downlink reference signal transmission method, and a device, to solve channel state information when the horizontal dimension and/or vertical dimension of the antenna array exceeds the number of downlink reference signal ports supported by the system. Feedback questions.
  • the present disclosure provides a channel state information feedback method, including:
  • the receiving the horizontal dimension downlink reference signal, and determining the measurement channel matrix of the horizontal dimension according to the horizontal dimension downlink reference signal including: receiving the level respectively on the subframe indicated by each offset in the horizontal dimension measurement period configured by the base station
  • the dimension downlink reference signal acquires each horizontal dimension group channel matrix according to the horizontal dimension downlink reference signal received on each of the subframes, And determining, according to each horizontal dimension group channel matrix, a measurement channel matrix of a horizontal dimension; and/or receiving a vertical dimension downlink reference signal, and determining a measurement channel matrix of a vertical dimension according to the vertical dimension downlink reference signal, including: configured at a base station Receiving a vertical dimension downlink reference signal on each subframe indicated by each offset in the vertical dimension measurement period, and acquiring each vertical dimension group channel matrix according to the vertical dimension downlink reference signal received on each of the subframes, and Determining, according to each vertical dimension group channel matrix, a measurement channel matrix of a vertical dimension; the dimensional downlink reference signals received on each of the subframes in the same dimension measurement
  • Channel state information is determined according to the three-dimensional spatial channel matrix, and the determined channel state information is fed back to the base station.
  • determining the measurement channel matrix of the dimension according to each of the dimension group channel matrices comprises:
  • the channel matrix of each of the dimension groups is modified, and one implementation manner thereof may be:
  • the antenna port channel information is measured according to the repeatedly measured antenna ports of each set of antenna ports of the dimension, and each of the dimensional group channel matrices is corrected to obtain a corrected horizontal matrix group channel matrix.
  • the measurement channel matrix of the dimension is determined according to the modified each of the dimension group channel matrices, and an implementation manner thereof may be: removing the modified from each of the dimension group channel matrices.
  • the measured channel information of the antenna port is repeated to determine the measured channel matrix of the dimension.
  • the present disclosure further provides a method for transmitting a downlink reference signal, including:
  • Transmitting a horizontal dimension downlink reference signal in a horizontal dimension measurement period includes: transmitting, in the subframe indicated by each offset in the horizontal dimension measurement period, the horizontal dimension downlink reference signal by each group of antenna ports in the horizontal dimension;
  • Transmitting a vertical dimension downlink reference signal during a vertical dimension measurement period includes: transmitting, on the subframe indicated by each offset in the vertical dimension measurement period, the vertical dimension downlink reference signal by each group of antenna ports of the vertical dimension.
  • each set of antenna ports in the horizontal dimension has a repeating antenna port between each set of antenna ports in the adjacent horizontal dimension, each set of antenna ports in the vertical dimension and each set of antenna ports in the adjacent vertical dimension There is a duplicate antenna port between them.
  • At least one row of antenna ports in the horizontal dimension is grouped, and/or at least one column of antenna ports in the vertical dimension is grouped.
  • One implementation manner may be:
  • the embodiment of the present disclosure further provides a channel state information feedback device, including:
  • a measurement channel matrix determining module configured to receive a horizontal dimension downlink reference signal, and determine a horizontal channel measurement channel matrix according to the horizontal dimension downlink reference signal; and/or receive a vertical dimension downlink reference signal, and downlink according to the vertical dimension
  • the reference signal determines a measurement channel matrix of a vertical dimension
  • the receiving the horizontal dimension downlink reference signal, and determining the measurement channel matrix of the horizontal dimension according to the horizontal dimension downlink reference signal including: receiving the level respectively on the subframe indicated by each offset in the horizontal dimension measurement period configured by the base station a dimension downlink reference signal, which acquires each horizontal dimension group channel matrix according to the horizontal dimension downlink reference signal received on each of the subframes, and determines a measurement channel matrix of a horizontal dimension according to each horizontal dimension group channel matrix; and/ Or receiving a vertical dimension downlink reference signal, and determining a measurement channel matrix of a vertical dimension according to the vertical dimension downlink reference signal, including: receiving vertical dimensions respectively on subframes indicated by respective offsets in a vertical dimension measurement period configured by the base station And determining, by the downlink reference signal, each vertical dimension group channel matrix according to the vertical dimension downlink reference signal received on each of the subframes, and determining a vertical channel measurement channel matrix according to each vertical dimension group channel matrix; Each of the sub-periods within the measurement period The dimensional downlink reference signals received on the frame respectively
  • a three-dimensional spatial channel matrix determining module configured to determine a three-dimensional spatial channel matrix according to a measurement channel matrix of a horizontal dimension and a measurement channel matrix of a vertical dimension;
  • the channel state information determining and feedback module is configured to determine channel state information according to the three-dimensional spatial channel matrix, and feed back the determined channel state information to the base station.
  • each set of antenna ports of the same dimension and each set of antenna ports of the adjacent dimension have an antenna port that is repeatedly measured; and according to each of the dimension group channel matrices, determining the When measuring the channel matrix of dimensions, the measurement channel matrix determination module is used to:
  • the measurement channel matrix determining module is configured to:
  • the antenna port channel information is measured according to the repeatedly measured antenna ports of each set of antenna ports of the dimension, and each of the dimensional group channel matrices is corrected to obtain a modified each of the dimensional group channel matrices.
  • the measurement channel matrix determining module is configured to: when determining the measurement channel matrix of the dimension according to the modified each of the dimension group channel matrices, according to any of the foregoing device embodiments:
  • the channel information of the repeatedly measured antenna port is removed from the modified each of the dimensional group channel matrices, and the measured channel matrix of the dimension is determined.
  • the embodiment of the present disclosure further provides a UE, including:
  • a processor for reading a program in the memory performing the following process:
  • the receiving the horizontal dimension downlink reference signal, and determining the measurement channel matrix of the horizontal dimension according to the horizontal dimension downlink reference signal including: receiving the level respectively on the subframe indicated by each offset in the horizontal dimension measurement period configured by the base station a dimension downlink reference signal, which acquires each horizontal dimension group channel matrix according to the horizontal dimension downlink reference signal received on each of the subframes, and determines a measurement channel matrix of a horizontal dimension according to each horizontal dimension group channel matrix; and/ Or receiving a vertical dimension downlink reference signal, and determining a measurement channel matrix of a vertical dimension according to the vertical dimension downlink reference signal, including: receiving vertical dimensions respectively on subframes indicated by respective offsets in a vertical dimension measurement period configured by the base station And determining, by the downlink reference signal, each vertical dimension group channel matrix according to the vertical dimension downlink reference signal received on each of the subframes, and determining a vertical channel measurement channel matrix according to each vertical dimension group channel matrix; Each of the sub-periods within the measurement period The dimensional downlink reference signals received on the frame respectively
  • transceiver for receiving and transmitting data under the control of a processor
  • a memory that holds the data used by the processor to perform operations.
  • the processor when determining the measurement channel matrix of the dimension according to each of the dimension group channel matrices, the processor is configured to read a program in the memory, and perform the following process:
  • the processor when modifying each of the dimensional group channel matrices, is configured to read a program in the memory and perform the following process:
  • the antenna port channel information is measured according to the repeatedly measured antenna ports of each set of antenna ports of the dimension, and each of the dimensional group channel matrices is corrected to obtain a modified each of the dimensional group channel matrices.
  • the processor when determining the measured channel matrix of the dimension according to the modified each of the dimensional group channel matrices, the processor is configured to read a program in the memory, and perform the following process:
  • the channel information of the repeatedly measured antenna port is removed from the modified each of the dimensional group channel matrices, and the measured channel matrix of the dimension is determined.
  • the embodiment of the present disclosure further provides a downlink reference signal sending apparatus, including:
  • An antenna port grouping module configured to group at least one row of antenna ports in a horizontal dimension, and/or to group at least one column of antenna ports in a vertical dimension;
  • a reference signal resource allocation module configured to allocate a horizontal dimension measurement period to the user equipment, and allocate a vertical dimension measurement period to the user equipment;
  • An offset allocation module configured to allocate an offset in a horizontal dimension measurement period for a horizontal dimension downlink reference signal on each group of antenna ports of a horizontal dimension; and/or a vertical on each group of antenna ports in a vertical dimension
  • the dimension downlink reference signal is assigned an offset in the vertical dimension measurement period
  • a configuration information sending module configured to send the horizontal dimension measurement period and the vertical dimension measurement period, and each offset within the horizontal dimension measurement period and/or each offset within the vertical dimension measurement period to the user equipment;
  • a horizontal dimension reference signal sending module configured to send a horizontal dimension downlink reference signal in a horizontal dimension measurement period; wherein, if a horizontal dimension downlink reference signal on each group of antenna ports in a horizontal dimension is assigned a bias in a horizontal dimension measurement period Transmitting, transmitting the horizontal dimension downlink reference signal in the horizontal dimension measurement period, including: transmitting the horizontal dimension downlink reference signal through each group of antenna ports of the horizontal dimension on the subframe indicated by each offset in the horizontal dimension measurement period ;
  • a vertical dimension reference signal sending module configured to send a vertical dimension downlink reference signal in a vertical dimension measurement period; wherein if a vertical dimension downlink reference signal on each group of antenna ports in a vertical dimension is assigned a bias in a vertical dimension measurement period Transmitting, transmitting a vertical dimension downlink reference signal in a vertical dimension measurement period, including: transmitting a vertical dimension downlink reference signal through each group of antenna ports of a vertical dimension on a subframe indicated by each offset in a vertical dimension measurement period .
  • each set of antenna ports in the horizontal dimension has a repeating antenna port between each set of antenna ports in the adjacent horizontal dimension, each set of antenna ports in the vertical dimension and each set of antenna ports in the adjacent vertical dimension There is a duplicate antenna port between them.
  • the antenna port grouping module is specifically configured to:
  • the group antenna port includes an antenna port number, and at least one column antenna port of the vertical dimension is grouped, wherein each group of antenna ports of the vertical dimension is continuously arranged in a vertical dimension.
  • the embodiment of the present disclosure further provides a base station, including:
  • a processor for reading a program in the memory performing the following process:
  • Transmitting a horizontal dimension downlink reference signal in a horizontal dimension measurement period includes: transmitting, in the subframe indicated by each offset in the horizontal dimension measurement period, the horizontal dimension downlink reference signal by each group of antenna ports in the horizontal dimension;
  • Transmitting a vertical dimension downlink reference signal during a vertical dimension measurement period including: transmitting, in a subframe indicated by each offset in a vertical dimension measurement period, a vertical dimension downlink reference signal by each group of antenna ports of a vertical dimension;
  • transceiver for receiving and transmitting data under the control of a processor
  • a memory that holds the data used by the processor to perform operations.
  • each set of antenna ports in the horizontal dimension has a repeating antenna port between each set of antenna ports in the adjacent horizontal dimension, each set of antenna ports in the vertical dimension and each set of antenna ports in the adjacent vertical dimension There is a duplicate antenna port between them.
  • the processor reads the program in the memory and performs the following process:
  • the base station separately groups the antenna ports in the horizontal dimension and/or the vertical dimension, and respectively sends the horizontal dimension downlink reference signals in each group of antenna ports in the horizontal dimension, and/or in the vertical dimension.
  • the group antenna port transmits a vertical dimension downlink reference signal.
  • the user equipment obtains the measurement channel matrix of the horizontal dimension and/or the vertical dimension according to the downlink reference signal corresponding to each group of antenna ports received in the horizontal dimension and/or the vertical dimension, and further performs feedback of the channel state information, thereby solving the large-scale antenna array. The problem of channel state information feedback in the scenario.
  • the channel state information feedback can be performed by using the existing CSI-RS resource configuration. It should be noted that the solution provided by the embodiment of the present disclosure is also applicable to the case where the number of antenna ports per group exceeds the number of downlink reference signal ports supported by the existing system. In this case, new reference signal resources need to be configured to support feedback of channel state information.
  • FIG. 1 is a flowchart of a downlink reference signal sending method according to an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of a grouping manner of antenna ports in a dual-polarized antenna array according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of grouping manners of antenna ports in a single-polarized antenna array according to an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of a CSI-RS resource grouping configuration scheme according to an embodiment of the present disclosure
  • FIG. 5 is a flowchart of a channel state information feedback method according to an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of a method for measuring a horizontal dimension channel according to an embodiment of the present disclosure
  • FIG. 7 is a schematic diagram of a method for measuring a vertical dimension channel according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram of a channel state information feedback apparatus according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a UE according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic diagram of a device for transmitting a downlink reference signal according to an embodiment of the present disclosure
  • FIG. 11 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • the base station may implement the downlink reference signal for the UE in the large-scale antenna system based on the CSI-RS resources whose number of ports does not exceed the number of ports supported by the existing system.
  • the UE determines channel state information and feeds back according to the channel estimation of the base station antenna to the UE.
  • the implementation manner of transmitting the downlink reference signal on the base station side is as shown in FIG. 1 , and specifically includes the following operations:
  • Step 100 Group at least one row of antenna ports of a horizontal dimension, and/or group at least one column of antenna ports of the vertical dimension.
  • one antenna element has one antenna port; for a dual-polarized antenna element, one antenna element has two antenna ports.
  • the selection of the antenna port for grouping may be arbitrary, or may be selected according to a preset rule.
  • Step 110 Assign a horizontal dimension measurement period to the user equipment, and allocate a vertical dimension measurement period to the user equipment.
  • the user equipment may also be allocated a downlink reference signal resource of a horizontal dimension and a downlink reference signal resource of a vertical dimension.
  • Step 120 Allocate an offset in a horizontal dimension measurement period for a horizontal dimension downlink reference signal on each group of antenna ports of a horizontal dimension; and/or a vertical dimension downlink reference signal assignment on each group of antenna ports in a vertical dimension. The offset in the vertical dimension measurement period.
  • Step 130 Send the horizontal dimension measurement period and the vertical dimension measurement period, and each offset within the horizontal dimension measurement period and/or each offset within the vertical dimension measurement period to the user equipment.
  • the downlink reference signal resource of the horizontal dimension and the downlink reference signal resource of the vertical dimension are also sent to the user equipment.
  • Step 140 Send a horizontal dimension downlink reference signal in a horizontal dimension measurement period; wherein, if the horizontal dimension downlink reference signal on each group of antenna ports in the horizontal dimension is assigned an offset in a horizontal dimension measurement period, in a horizontal dimension Transmitting the horizontal dimension downlink reference signal in the measurement period includes: transmitting, on the subframe indicated by each offset in the horizontal dimension measurement period, the horizontal dimension downlink reference signal by each group of antenna ports in the horizontal dimension.
  • Step 150 Send a vertical dimension downlink reference signal in a vertical dimension measurement period; wherein, if the vertical dimension downlink reference signal on each group of antenna ports in the vertical dimension is assigned an offset in a vertical dimension measurement period, in a vertical dimension Transmitting the vertical dimension downlink reference signal during the measurement period includes: transmitting a vertical dimension downlink reference signal through each group of antenna ports of the vertical dimension on the subframes indicated by the respective offsets in the vertical dimension measurement period.
  • the base station separately groups the antenna ports in the horizontal dimension and/or the vertical dimension, and respectively sends the horizontal dimension downlink reference signals in each group of antenna ports in the horizontal dimension, and/or in the vertical dimension.
  • the group antenna port transmits a vertical dimension downlink reference signal. So that the user equipment obtains the measurement channel matrix of the horizontal dimension and/or the vertical dimension according to the downlink reference signal corresponding to each group of antenna ports received by the horizontal dimension and/or the vertical dimension, and then performs feedback of the channel state information, thereby solving the large-scale antenna. The problem of channel state information feedback in the array scenario.
  • the channel state information feedback can be performed by using the existing CSI-RS resource configuration. It should be noted that the solution provided by the embodiment of the present disclosure is also applicable to the case where the number of antenna ports per group exceeds the number of downlink reference signal ports supported by the existing system. In this case, new reference signal resources need to be configured to support feedback of channel state information.
  • each set of antenna ports in the horizontal dimension and each set of antenna ports in the adjacent horizontal dimension have a repeating antenna port of the same polarization, each set of antenna ports in the vertical dimension and the adjacent vertical dimension There is a duplicate antenna port with the same polarization between each set of antenna ports.
  • the adjacent two sets of antenna ports mean that the group numbers of the two sets of antenna ports are adjacent.
  • each set of antenna ports in the horizontal dimension and each set of antenna ports in the adjacent horizontal dimension have a repeating antenna port with the same polarization
  • each set of antenna ports in the vertical dimension is adjacent to the adjacent vertical port.
  • Each antenna port of the dimension has a repeating antenna port with the same polarization, so that the user equipment side can correctly estimate the measurement channel matrix of the horizontal dimension and the measurement channel matrix of the vertical dimension, thereby correctly estimating the channel state information.
  • a row of antenna ports of a horizontal dimension are grouped, and/or a row of antenna ports of a vertical dimension are grouped.
  • any row of antenna ports in the horizontal dimension may be selected for grouping, and any row of antenna ports in the vertical dimension may be selected for grouping.
  • the antenna array of the base station is composed of N row rows and N col column antennas, and the number of antenna polarizations is N pol . If the value of N pol is 1, the antenna is a single-polarized antenna element, that is, one antenna element includes one antenna port; if the value of N pol is 2, the antenna is a dual-polarized antenna element, that is, an antenna element includes Two antenna ports.
  • the serial number, n col is the column number of the column where the antenna port is located.
  • the base station randomly selects one row of horizontal dimension antenna ports from the N row row antenna ports to form a horizontal dimension antenna port, and arbitrarily selects one polarized column of vertical dimension antenna ports from the N col column antenna ports to form a vertical dimension antenna port.
  • each set of antenna ports in the horizontal dimension and each set of antenna ports in the adjacent horizontal dimension There are various ways to group the antenna ports of the selected horizontal dimension and the antenna ports of the vertical dimension, as long as there is a polarization between each set of antenna ports in the horizontal dimension and each set of antenna ports in the adjacent horizontal dimension.
  • the same repeated antenna port, and each set of antenna ports in the vertical dimension and each set of antenna ports in the adjacent vertical dimension have a repeating antenna end with the same polarization mouth.
  • each set of antenna ports of the horizontal dimension is continuously arranged in the horizontal dimension
  • each set of antenna ports of the vertical dimension is continuously arranged in the vertical dimension.
  • the two sets of antenna ports in the horizontal dimension are adjacent, specifically, the two sets of antenna ports are consecutively arranged in the horizontal dimension
  • the two sets of antenna ports in the vertical dimension are adjacent, specifically, the two sets of antenna ports are in the vertical dimension. Continuously arranged.
  • the number of antenna ports in each group when grouping one row of antenna ports in a horizontal dimension and one column of antenna ports in a vertical dimension, try to make the number of antenna ports in each group as the maximum number of ports supported by the standard. For example, if the maximum number of CSI-RS ports supported by the standard is 8, the number of antenna ports in each group should be as high as 8.
  • the number of packets of the antenna port of the selected horizontal dimension is selected.
  • the number of packets of the antenna port of the selected vertical dimension may be determined by, but not limited to, the following formula 1. It can be, but is not limited to, determined by the following formula 2:
  • the number of packets of the antenna port of the selected horizontal dimension may be determined by, but not limited to, the following formula 3. It can be, but is not limited to, determined by the following formula 4:
  • the horizontal dimension can be determined according to Equation 5 and Equation 7 below.
  • the number of antenna ports included in each group of antenna ports determines the number of antenna ports included in each group of antenna ports in the vertical dimension according to Equation 6 and Equation 8 below:
  • the number of antenna elements included in the nth antenna port of the vertical dimension The number of antenna ports included in the nth group of antenna ports in the vertical dimension.
  • the number of antenna ports included in each group of antenna ports in the horizontal dimension can be determined according to the following formula 9 and formula 11, and the antennas included in each group of antenna ports of the vertical dimension are determined according to the following formulas 10 and 12; Number of ports:
  • antenna port grouping Determine the initial line number of each set of antenna ports in the horizontal dimension
  • Number of groups based on vertical dimension antenna ports Determine the initial column number for each set of antenna ports in the vertical dimension
  • N pol 2
  • N pol 1 it means that it is a single-polarized antenna oscillator, and its numbering method is as follows:
  • the specific grouping manner may refer to the above-mentioned optional grouping manner, except that the antenna ports of the same column and having the same polarization are in the same group. If two or more rows of antenna ports of the vertical dimension are selected, the specific grouping manner may refer to the above optional grouping manner, except that the same row antenna ports are to be in the same group.
  • the preferred implementation manner of the step 110 may be: the base station configures a horizontal dimension CSI process and its corresponding horizontal dimension CSI-RS resource, and/or a vertical dimension for the UE.
  • CSI process and its corresponding vertical dimension CSI-RS resources Each CSI-RS resource may have its own independent subframe period and offset, and may also configure the same subframe period and offset for two CSI-RS resources.
  • Horizontal dimension The CSI-RS on the group antenna port configures the intra-group offset of the horizontal dimension, and the sub-frame period of the horizontal dimension is Intra-group offset of horizontal dimensions.
  • Vertical dimension The CSI-RS on the group antenna port configures the offset within the vertical dimension group, and the subframe period of the vertical dimension is Intra-group offset of vertical dimensions.
  • the same CSI-RS resource is used in each intra-group offset in the horizontal dimension.
  • the number of antenna ports in the horizontal dimension port group is changed as the offset within the horizontal dimension group changes.
  • the initial line number of each set of antenna ports in the horizontal dimension Corresponding changes have also taken place. That is, in each intra-group offset of the horizontal dimension, the pilot signals of the respective ports of the horizontal dimension CSI-RS are emitted from all antenna ports in each group of the horizontal dimension.
  • the same CSI-RS resource is used in each group offset in the vertical dimension, and the number of antenna ports in the vertical dimension antenna port group increases as the offset within the vertical dimension group changes.
  • Initial line number of each set of antenna ports in the vertical dimension Corresponding changes have also taken place. That is, in each intra-group offset of the vertical dimension, the pilot signals of the respective ports of the vertical dimension CSI-RS are emitted from all antenna ports in each group of the vertical dimension.
  • N pol 2
  • CSI process and CSI-RS resource grouping scheme in horizontal and vertical dimensions are as shown in Fig. 4.
  • the implementation of the channel state information feedback on the UE side includes the following operations:
  • Step 500 Receive a horizontal dimension downlink reference signal, and determine a measurement channel matrix of a horizontal dimension according to the horizontal dimension downlink reference signal; and/or, receive a vertical dimension downlink reference signal, and determine a vertical dimension according to the vertical dimension downlink reference signal. Measuring channel matrix.
  • the horizontal reference downlink reference signal is received, and the measurement channel matrix of the horizontal dimension is determined according to the horizontal dimension downlink reference signal, including:
  • Step 5001a Receive a horizontal dimension downlink reference signal on each subframe indicated by each offset in a horizontal dimension measurement period configured by the base station;
  • Step 5002a Obtain, according to each of the horizontal dimension downlink reference signals received on each of the subframes, a channel matrix of each horizontal dimension group;
  • Step 5003a Determine a measurement channel matrix of a horizontal dimension according to each horizontal dimension group channel matrix
  • receiving a vertical dimension downlink reference signal, and determining a measurement channel matrix of a vertical dimension according to the vertical dimension downlink reference signal including:
  • Step 5001b Receive vertical dimension downlink reference signals respectively on subframes indicated by respective offsets in a vertical dimension measurement period configured by the base station;
  • Step 5002b Acquire each vertical dimension group channel matrix according to the vertical dimension downlink reference signals received on each of the subframes.
  • Step 5003b Determine a measurement channel matrix of a vertical dimension according to each vertical dimension group channel matrix.
  • the horizontal dimension downlink reference signals received on the subframe indicated by each offset in the horizontal dimension measurement period respectively correspond to a group of antenna ports in the horizontal dimension, and each group of antenna ports in the horizontal dimension is the base station pair level.
  • the at least one row of antenna port groups of the dimension are determined;
  • the vertical dimension downlink reference signals respectively received on the subframe indicated by each offset in the vertical dimension measurement period respectively correspond to a group of antenna ports of the vertical dimension, and groups of vertical dimensions
  • the antenna port is determined by the base station grouping at least one column of antenna ports of a vertical dimension.
  • Step 510 Determine a three-dimensional spatial channel matrix according to a measurement channel matrix of a horizontal dimension and a measurement channel matrix of a vertical dimension.
  • Step 520 Determine channel state information according to the three-dimensional spatial channel matrix, and feed back the determined channel state information to the base station.
  • the base station groups the antenna ports in the horizontal dimension and the vertical dimension respectively, and the UE receives the horizontal dimension downlink reference signals in each group of antenna ports in the horizontal dimension, and receives the downlink reference signals in the vertical dimension of each group of antenna ports.
  • Vertical dimension downlink reference signal The user equipment obtains the measurement channel matrix of the horizontal dimension and/or the vertical dimension according to the downlink reference signal corresponding to each group of antenna ports received in the horizontal dimension and/or the vertical dimension, and further performs feedback of the channel state information, thereby solving the large-scale antenna array. The problem of channel state information feedback in the scenario.
  • the channel state information feedback can be performed by using the existing CSI-RS resource configuration. It should be noted that the solution provided by the embodiment of the present disclosure is also applicable to the case where the number of antenna ports per group exceeds the number of downlink reference signal ports supported by the existing standard. In this case, new reference signal resources need to be configured to support feedback of channel state information.
  • determining the measurement channel matrix of the horizontal dimension comprises: correcting each horizontal dimension group channel matrix; and determining a horizontal channel measurement channel matrix according to the modified horizontal dimension group channel matrix. If the antenna ports of the vertical dimension are grouped, there is a duplicated antenna port between each set of antenna ports in the vertical dimension and each set of antenna ports in the adjacent vertical dimension.
  • determining the measurement channel matrix of the vertical dimension according to each vertical dimension group channel matrix comprises: correcting each vertical dimension group channel matrix; and determining a vertical dimension measurement channel matrix according to the modified vertical dimension group channel matrix.
  • the channel matrix of each horizontal dimension group is modified, including: performing antenna channel channel information measured by the repeatedly measured antenna ports of each group of antenna ports in a horizontal dimension, and performing channel matrix of each horizontal dimension group respectively. Corrected.
  • the correction of each vertical dimension group channel matrix includes: performing antenna channel channel information measured by the repeatedly measured antenna ports of each group of antenna ports of the vertical dimension, respectively, for each vertical dimension group channel matrix Corrected.
  • the UE measures the horizontal dimension in each subframe period of the horizontal dimension.
  • the configured CSI-RS within the group gets the corresponding horizontal dimension Group channel matrix for each group of antenna ports within a group Among them, the first The channel matrix of the group is Where N r is the number of UE receiving antennas, and N pol is the number of polarizations of the base station antenna.
  • the UE measures the vertical dimension in each subframe period of the vertical dimension.
  • the configured CSI-RS within the group gets the corresponding vertical dimension Group channel for each group of antenna ports in a group Among them, the first The channel matrix of the group is Where N r is the number of UE receiving antennas.
  • the antenna port channel of the packet measurement is corrected by the antenna port channel that is repeatedly measured between the groups.
  • Get the horizontal dimension Correction value of group channel for each antenna port in each group Among them, the first Corrected value of the channel information of the group Get vertical dimension Correction value of group channel for each antenna port in each group Among them, the first The corrected value of the group's channel The detailed correction method is as follows:
  • n r N r receive antennas UE represents the number of n r; n-pol N represents a base station pol pol polarization of n-th polarization. Representing the horizontal dimension Antenna port group Column port.
  • Group channel from the corrected horizontal dimension The channel of the repeatedly measured antenna port is removed, and a measurement channel of N pol ⁇ N col antenna port ports of a uniform horizontal dimension is obtained.
  • Group channel from the corrected vertical dimension The channel of the repeatedly measured antenna port is removed, and a measurement channel of N row antenna port ports of a uniform vertical dimension is obtained.
  • the detailed calculation method is as follows:
  • H 3D (n r ,:) represents the 3D spatial channel of the base station antenna received by the n rth receiving antenna.
  • the CSI information is calculated, where the CSI information includes PMI information, RI information, and CQI information.
  • the terminal feedback PMI information may be horizontal dimension PMI information and vertical dimension PMI information, or may be three-dimensional PMI information; the terminal feedback RI information may be RI information only for PMI information of a horizontal dimension, or may be RI information of a three-dimensional PMI.
  • the CQI information fed back by the terminal is based on a three-dimensional (3D) spatial channel. And 3D precoding matrix W 3D calculated.
  • the base station adopts the horizontal dimension PMI information and the vertical dimension PMI information mode
  • its PMI, RI and CQI are calculated as follows:
  • the terminal will vertically dimension the precoding matrix corresponding to the PMI information of the vertical dimension Reconstruct W v and H 3D to a horizontally equivalent channel
  • Terminal Calculate the 3D PMI information.
  • the three-dimensional RI information is calculated.
  • Terminal Calculate the three-dimensional CQI information.
  • the base station receives the CSI information fed back by the terminal, and performs calculation of the link adaptation parameter.
  • the precoding matrix corresponding to the vertical dimension PMI information fed back by the terminal is The precoding matrix corresponding to the horizontal dimension PMI and the horizontal dimension RI information fed back by the terminal is Where R h is the number of columns (rank) of the horizontal dimension precoding matrix, determined by the RI information, and the precoding matrix for the entire antenna array for data transmission by the base station is: or, among them Represents the Kronecker product of the matrix.
  • the precoding matrix corresponding to the three-dimensional PMI information fed back by the terminal is Where R is the number of columns (rank) of the three-dimensional spatial direction precoding matrix, which is determined by the RI information, and the precoding matrix for the entire antenna array for data transmission by the base station is: W 3D .
  • the MCS (coding rate and modulation level) of the data transmission may be selected according to the CQI fed back by the terminal, for example, directly mapped to the MCS level by the CQI and the number of resources, or adjusted to the MCS level after adjusting the CQI fed back by the terminal.
  • the embodiment of the present disclosure further provides a channel state information feedback device, as shown in FIG.
  • a measurement channel matrix determining module 801 configured to receive a horizontal dimension downlink reference signal, and determine a horizontal channel measurement channel matrix according to the horizontal dimension downlink reference signal; and/or receive a vertical dimension downlink reference signal according to the vertical dimension
  • the downlink reference signal determines a measurement channel matrix of a vertical dimension
  • the receiving the horizontal dimension downlink reference signal, and determining the measurement channel matrix of the horizontal dimension according to the horizontal dimension downlink reference signal including: receiving the level respectively on the subframe indicated by each offset in the horizontal dimension measurement period configured by the base station a dimension downlink reference signal, which acquires each horizontal dimension group channel matrix according to the horizontal dimension downlink reference signal received on each of the subframes, and determines a measurement channel matrix of a horizontal dimension according to each horizontal dimension group channel matrix; and/ Or receiving a vertical dimension downlink reference signal, and determining a measurement channel matrix of a vertical dimension according to the vertical dimension downlink reference signal, including: receiving vertical dimensions respectively on subframes indicated by respective offsets in a vertical dimension measurement period configured by the base station And determining, by the downlink reference signal, each vertical dimension group channel matrix according to the vertical dimension downlink reference signal received on each of the subframes, and determining a vertical channel measurement channel matrix according to each vertical dimension group channel matrix; Each of the sub-periods within the measurement period The dimensional downlink reference signals received on the frame respectively
  • the three-dimensional spatial channel matrix determining module 802 is configured to determine a three-dimensional spatial channel matrix according to the measurement channel matrix of the horizontal dimension and the measurement channel matrix of the vertical dimension;
  • the channel state information determining and feedback module 803 is configured to determine channel state information according to the three-dimensional spatial channel matrix, and feed back the determined channel state information to the base station.
  • each set of antenna ports of the same dimension has an antenna port repeatedly measured between each group of antenna ports of the adjacent dimension; determining a measurement channel of the dimension according to each of the dimension group channel matrices
  • the measurement channel matrix determination module is used to:
  • measuring a channel matrix determining module is used to:
  • the antenna port channel information is measured according to the repeatedly measured antenna ports of each set of antenna ports of the dimension, and each of the dimensional group channel matrices is corrected to obtain a modified each of the dimensional group channel matrices.
  • the measurement channel matrix determining module is configured to:
  • the channel information of the repeatedly measured antenna port is removed from the modified each of the dimensional group channel matrices, and the measured channel matrix of the dimension is determined.
  • the embodiment of the present disclosure further provides a UE, and the structure thereof is as shown in FIG.
  • the processor 900 is configured to read a program in the memory 920 and perform the following process:
  • the receiving the horizontal dimension downlink reference signal, and determining the measurement channel matrix of the horizontal dimension according to the horizontal dimension downlink reference signal including: receiving the level respectively on the subframe indicated by each offset in the horizontal dimension measurement period configured by the base station a dimension downlink reference signal, which acquires each horizontal dimension group channel matrix according to the horizontal dimension downlink reference signal received on each of the subframes, and determines a measurement channel matrix of a horizontal dimension according to each horizontal dimension group channel matrix; and/ Or receiving a vertical dimension downlink reference signal, and determining a measurement channel matrix of a vertical dimension according to the vertical dimension downlink reference signal, including: receiving vertical dimensions respectively on subframes indicated by respective offsets in a vertical dimension measurement period configured by the base station And determining, by the downlink reference signal, each vertical dimension group channel matrix according to the vertical dimension downlink reference signal received on each of the subframes, and determining a vertical channel measurement channel matrix according to each vertical dimension group channel matrix; Each of the sub-periods within the measurement period The dimensional downlink reference signals received on the frame respectively
  • Channel state information is determined according to the three-dimensional spatial channel matrix, and the determined channel state information is fed back to the base station.
  • the transceiver 910 is configured to receive and transmit data under the control of the processor 900.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 900 and various circuits of memory represented by memory 920.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 910 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the user interface 930 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 900 is responsible for managing the bus architecture and general processing, and the memory 920 can store data used by the processor 900 in performing operations.
  • the embodiment of the present disclosure further provides a device for transmitting a downlink reference signal, as shown in FIG.
  • the antenna port grouping module 1001 is configured to group at least one row of antenna ports in a horizontal dimension, and/or group at least one column of antenna ports in a vertical dimension;
  • the reference signal resource allocation module 1002 is configured to allocate a horizontal dimension measurement period to the user equipment, and allocate a vertical dimension measurement period to the user equipment;
  • An offset allocation module 1003 configured to allocate an offset in a horizontal dimension measurement period for a horizontal dimension downlink reference signal on each group of antenna ports in a horizontal dimension; and/or, on each group of antenna ports in a vertical dimension
  • the vertical dimension downlink reference signal is assigned an offset in the vertical dimension measurement period;
  • the configuration information sending module 1004 is configured to send the horizontal dimension measurement period and the vertical dimension measurement period, and the respective offsets in the horizontal dimension measurement period and/or the respective offsets in the vertical dimension measurement period to the user equipment;
  • the horizontal dimension reference signal sending module 1005 is configured to send the horizontal dimension downlink reference signal in the horizontal dimension measurement period; wherein, if the horizontal dimension downlink reference signal on each group of antenna ports in the horizontal dimension is allocated in the horizontal dimension measurement period Offset, the horizontal dimension downlink reference signal is transmitted during the horizontal dimension measurement period, including: each offset indicator in the horizontal dimension measurement period In the illustrated subframe, the horizontal dimension downlink reference signal is sent through each group of antenna ports in the horizontal dimension;
  • the vertical dimension reference signal sending module 1006 is configured to send the vertical dimension downlink reference signal in the vertical dimension measurement period; wherein, if the vertical dimension downlink reference signal on each group of antenna ports in the vertical dimension is allocated in the vertical dimension measurement period The offset, the vertical dimension downlink reference signal is sent in the vertical dimension measurement period, including: sending the vertical dimension downlink reference through each group of antenna ports of the vertical dimension on the subframes indicated by the respective offsets in the vertical dimension measurement period signal.
  • each set of antenna ports in the horizontal dimension has a repeating antenna port between each set of antenna ports in the adjacent horizontal dimension, each set of antenna ports in the vertical dimension and each set of antenna ports in the adjacent vertical dimension There is a duplicate antenna port between them.
  • the antenna port grouping module 1001 is configured to:
  • the embodiment of the present disclosure further provides a base station, and the structure thereof is as shown in FIG.
  • the processor 1100 is configured to read a program in the memory 1120 and perform the following process:
  • the horizontal dimension downlink reference signals on each set of antenna ports in the horizontal dimension are assigned in the horizontal dimension The offset within the measurement period; and/or the vertical dimension downlink reference signal on each set of antenna ports in the vertical dimension is assigned an offset within the vertical dimension measurement period;
  • Transmitting a horizontal dimension downlink reference signal in a horizontal dimension measurement period includes: transmitting, in the subframe indicated by each offset in the horizontal dimension measurement period, the horizontal dimension downlink reference signal by each group of antenna ports in the horizontal dimension;
  • Transmitting a vertical dimension downlink reference signal during a vertical dimension measurement period includes: transmitting, on the subframe indicated by each offset in the vertical dimension measurement period, the vertical dimension downlink reference signal by each group of antenna ports of the vertical dimension.
  • the transceiver 1110 is configured to receive and transmit data under the control of the processor 1100.
  • the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 1100 and various circuits of memory represented by memory 1120.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • the transceiver 1110 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 1100 is responsible for managing the bus architecture and general processing, and the memory 1120 can store data used by the processor 1100 in performing operations.
  • 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 an entirely hardware embodiment, an entirely 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, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the present disclosure is made with reference to a method, apparatus (system), and computer program according to an embodiment of the present disclosure.
  • the flow chart and/or block diagram of the product is described. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
  • These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device.
  • 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.

Abstract

Disclosed are a channel state information feedback method, and a downlink reference signal sending method and device. In the technical solution provided in the embodiments of this disclosure, a base station respectively groups antenna ports in the horizontal dimension and/or the vertical dimension, respectively sends horizontal-dimension downlink reference signals on each group of antenna ports in the horizontal dimension and/or sends vertical-dimension downlink reference signals on each group of antenna ports in the vertical dimension. A user equipment obtains a measurement channel matrix in the horizontal dimension and/or the vertical dimension according to the received downlink reference signals corresponding to various groups of antenna ports in the horizontal dimension and/or the vertical dimension, and then feeds back the channel state information.

Description

一种信道状态信息反馈方法、下行参考信号方法及装置Channel state information feedback method, downlink reference signal method and device
相关申请的交叉引用Cross-reference to related applications
本申请主张在2015年1月23日在中国提交的中国专利申请号No.201510033727.4的优先权，其全部内容通过引用包含于此。The present application claims priority to Chinese Patent Application No. 201510033727.4, filed on Jan.
技术领域Technical field
本公开涉及通信技术领域，尤其涉及一种信道状态信息反馈方法、下行参考信号发送方法及装置。The present disclosure relates to the field of communications technologies, and in particular, to a channel state information feedback method, a downlink reference signal sending method, and an apparatus.
背景技术Background technique
在长期演进(Long Term Evolution，LTE)版本(Rel)-8中，最多可以支持4层的多输入多输出(Multi Input Multi Output，MIMO)传输。Rel-9重点对多用户MIMO(Multi-User MIMO，MU-MIMO)技术进行了增强，传送模式(Transmission Mode，TM)-8的MU-MIMO(Multi-User MIMO)传输中最多可以支持4个下行数据层。Rel-10则通过8端口信道质量信息参考信号(Channel State Information-Reference Signals，CSI-RS)、用户专属参考信号(UE-specific Reference Signal，URS)与多颗粒度码本的引入进一步提高了信道状态信息测量的空间分辨率，并进一步将单用户MIMO(Single-User MIMO，SU-MIMO)的传输能力扩展至最多8个数据层。MIMO系统的性能增益来源于天线系统所能获得的空间自由度。这里所说的空间自由度即天线系统所支持的CSI-RS端口个数。到目前为止，标准中对于天线系统最多支持8个CSI-RS端口，即对于天线系统所能获得的空间自由度最大能力支持8。In the Long Term Evolution (LTE) version (Rel)-8, up to 4 layers of Multi Input Multi Output (MIMO) transmission can be supported. Rel-9 focuses on multi-user MIMO (Multi-User MIMO) technology, and supports up to 4 MU-MIMO (Multi-User MIMO) transmissions in Transmission Mode (TM)-8. Downstream data layer. Rel-10 further improves the channel through the introduction of 8-port Channel State Information-Reference Signals (CSI-RS), UE-specific Reference Signal (URS) and multi-granular codebooks. The spatial resolution of the status information measurement, and further extends the transmission capability of single-user MIMO (SU-MIMO) to a maximum of 8 data layers. The performance gain of a MIMO system is derived from the spatial freedom that an antenna system can achieve. The spatial freedom mentioned here is the number of CSI-RS ports supported by the antenna system. Up to now, the standard supports up to 8 CSI-RS ports for the antenna system, that is, the maximum capacity for the antenna system can be obtained.
对于采用基于下行参考信号测量并反馈信道状态信息(Channel State Information，CSI)的机制的通信系统，用户设备(User Equipment，UE)要向基站反馈预编码矩阵码本索引(Precoding Matrix Indicator，PMI)，秩指示信息(Rank Indicator，RI)和信道质量信息(Channel Quality Indicator，CQI)。UE反馈的PMI，RI和CQI是基于UE通过CSI-RS所测量得到的信道信息所计算得到的。这个信道信息应包括天线系统的所有CSI-RS端口的信息，才能充分利用天线系统的空间自由度。For a communication system that uses a mechanism for measuring and feeding back channel state information (CSI) based on a downlink reference signal, a user equipment (User Equipment, UE) feeds back a precoding matrix code index (PMI) to the base station. , Rank Indicator (RI) and Channel Quality Indicator (CQI). The PMI, RI, and CQI fed back by the UE are calculated based on the channel information measured by the UE through the CSI-RS. This channel information should include information on all CSI-RS ports of the antenna system in order to take full advantage of the spatial freedom of the antenna system.
大规模天线是具有大规模收发信机和大规模天线振子组成的天线阵列， 其中，天线空间自由度远大于8，如16、32、64、128，256，512等。这种情况下，信道状态信息测量的空间分辨率直接取决于CSI-RS端口数量，即需要支持的CSI-RS端口数远大于8。A large-scale antenna is an antenna array composed of a large-scale transceiver and a large-scale antenna oscillator. Among them, the antenna space degree of freedom is much larger than 8, such as 16, 32, 64, 128, 256, 512 and so on. In this case, the spatial resolution of the channel state information measurement is directly dependent on the number of CSI-RS ports, that is, the number of CSI-RS ports that need to be supported is much larger than 8.
通常大规模天线阵列是由水平维度的Nh和垂直维度Nv个天线振子与射频器件组成NH×NV维自由度的平面形态的大规模有源天线阵列。当Nh≤8，并且Nv≤8时，可采用2套CSI-RS端口配置给一个UE，以确保UE可以测量天线系统的所有空间自由度。并且UE向基站反馈一对CSIs。这一对CSIs中一个对应着大规模有源天线的一列Nv个天线端口，另外一个对应着大规模有源天线的一行Nh个天线端口。这2套CSI-RS端口可以配置在同一子帧，也可以配置在不同子帧。这2套CSI-RS端口分别测量垂直维度行信道(Hv)和水平维度列信道(Hh)。通过测量得垂直维度行信道(Hv)和水平维度列信道Hh可以计算得到PMI，RI和CQI。Generally, a large-scale antenna array is a large-scale active antenna array in a planar form of N H × N V dimensional degrees of freedom consisting of horizontal dimensions of N h and vertical dimensions of N v antenna elements and radio frequency devices. When N h ≤ 8, and N v ≤ 8, two sets of CSI-RS ports can be configured for one UE to ensure that the UE can measure all spatial degrees of freedom of the antenna system. And the UE feeds back a pair of CSIs to the base station. This corresponds to a mass CSIs active antenna N v an antenna ports, an additional mass of the active antenna corresponds to a row of antenna ports N h. The two sets of CSI-RS ports can be configured in the same subframe or in different subframes. The two sets of CSI-RS ports measure the vertical dimension line channel (H v ) and the horizontal dimension column channel (H h ), respectively. The PMI, RI and CQI can be calculated by measuring the vertical dimension row channel (H v ) and the horizontal dimension column channel H h .
由于每套CSI-RS端口最大只能支持8个空间自由度，因此，当Nh＞8，或Nv＞8时，为了保证下行信道状态信息测量的空间分辨率，可以引入新的下行参考信号端口，但这将会带来显著的时频资源开销。如果限制下行参考信号端口数，又不能保证下行信道状态信息测量的空间分辨率，从而无法发挥大规模(massive)MIMO的性能优势。Since each CSI-RS port can only support a maximum of 8 spatial degrees of freedom, when N h >8 or N v >8, a new downlink reference can be introduced to ensure the spatial resolution of downlink channel state information measurement. Signal port, but this will bring significant time-frequency resource overhead. If the number of downlink reference signal ports is limited, the spatial resolution of downlink channel state information measurement cannot be guaranteed, and thus the performance advantage of massive MIMO cannot be exerted.
发明内容Summary of the invention
本公开的目的是提供一种信道状态信息反馈方法、下行参考信号发送方法及装置，以解决天线阵列的水平维度和/或垂直维度超过系统支持的下行参考信号端口数时，如何进行信道状态信息反馈的问题。An object of the present disclosure is to provide a channel state information feedback method, a downlink reference signal transmission method, and a device, to solve channel state information when the horizontal dimension and/or vertical dimension of the antenna array exceeds the number of downlink reference signal ports supported by the system. Feedback questions.
在一个实施例中，本公开提供了一种信道状态信息反馈方法，包括：In an embodiment, the present disclosure provides a channel state information feedback method, including:
接收水平维度下行参考信号，并根据所述水平维度下行参考信号确定水平维度的测量信道矩阵；和/或，接收垂直维度下行参考信号，并根据所述垂直维度下行参考信号确定垂直维度的测量信道矩阵；Receiving a horizontal dimension downlink reference signal, and determining a measurement channel matrix of a horizontal dimension according to the horizontal dimension downlink reference signal; and/or receiving a vertical dimension downlink reference signal, and determining a vertical dimension measurement channel according to the vertical dimension downlink reference signal matrix;
其中，接收水平维度下行参考信号，并根据所述水平维度下行参考信号确定水平维度的测量信道矩阵，包括：在基站配置的水平维度测量周期内的各个偏移量指示的子帧上分别接收水平维度下行参考信号，根据每个所述子帧上接收到的水平维度下行参考信号分别获取每一个水平维度组信道矩阵， 并根据各个水平维度组信道矩阵，确定水平维度的测量信道矩阵；和/或接收垂直维度下行参考信号，并根据所述垂直维度下行参考信号确定垂直维度的测量信道矩阵，包括：在基站配置的垂直维度测量周期内的各个偏移量指示的子帧上分别接收垂直维度下行参考信号，根据每个所述子帧上接收到的垂直维度下行参考信号分别获取每一个垂直维度组信道矩阵，并根据各个垂直维度组信道矩阵，确定垂直维度的测量信道矩阵；在相同维度测量周期内的每个所述子帧上接收到的所述维度下行参考信号分别对应所述维度的一组天线端口，所述维度的各组天线端口是所述基站对所述维度的至少一行或列天线端口分组确定的；The receiving the horizontal dimension downlink reference signal, and determining the measurement channel matrix of the horizontal dimension according to the horizontal dimension downlink reference signal, including: receiving the level respectively on the subframe indicated by each offset in the horizontal dimension measurement period configured by the base station The dimension downlink reference signal acquires each horizontal dimension group channel matrix according to the horizontal dimension downlink reference signal received on each of the subframes, And determining, according to each horizontal dimension group channel matrix, a measurement channel matrix of a horizontal dimension; and/or receiving a vertical dimension downlink reference signal, and determining a measurement channel matrix of a vertical dimension according to the vertical dimension downlink reference signal, including: configured at a base station Receiving a vertical dimension downlink reference signal on each subframe indicated by each offset in the vertical dimension measurement period, and acquiring each vertical dimension group channel matrix according to the vertical dimension downlink reference signal received on each of the subframes, and Determining, according to each vertical dimension group channel matrix, a measurement channel matrix of a vertical dimension; the dimensional downlink reference signals received on each of the subframes in the same dimension measurement period respectively correspond to a group of antenna ports of the dimension, Each set of antenna ports of the dimension is determined by the base station grouping at least one row or column antenna port of the dimension;
根据水平维度的测量信道矩阵和垂直维度的测量信道矩阵，确定三维空间信道矩阵；Determining a three-dimensional spatial channel matrix according to a measurement channel matrix of a horizontal dimension and a measurement channel matrix of a vertical dimension;
根据三维空间信道矩阵，确定信道状态信息，并将确定的信道状态信息反馈给所述基站。Channel state information is determined according to the three-dimensional spatial channel matrix, and the determined channel state information is fed back to the base station.
可选地，相同维度的每组天线端口与相邻的所述维度的每组天线端口之间均有一个重复测量的天线端口。相应的，根据各个所述维度组信道矩阵，确定所述维度的测量信道矩阵包括：Optionally, there is an repeatedly measured antenna port between each set of antenna ports of the same dimension and each set of antenna ports of the adjacent dimension. Correspondingly, determining the measurement channel matrix of the dimension according to each of the dimension group channel matrices comprises:
对各个所述维度组信道矩阵进行修正；Correcting each of the dimensional group channel matrices;
根据修正后的各个所述维度组信道矩阵，确定所述维度的测量信道矩阵。And determining a measurement channel matrix of the dimension according to each of the modified dimension group channel matrices.
其中，对各个所述维度组信道矩阵进行修正，其一种实现方式可以是：The channel matrix of each of the dimension groups is modified, and one implementation manner thereof may be:
分别根据所述维度的每组天线端口的所述重复测量的天线端口所测量得到天线端口信道信息，对各个所述维度组信道矩阵进行修正，得到修正后的各个水平维度组信道矩阵。The antenna port channel information is measured according to the repeatedly measured antenna ports of each set of antenna ports of the dimension, and each of the dimensional group channel matrices is corrected to obtain a corrected horizontal matrix group channel matrix.
基于上述任意方法实施例，根据修正后的各个所述维度组信道矩阵，确定所述维度的测量信道矩阵，其一种实现方式可以是：从修正后的各个所述维度组信道矩阵去掉所述重复测量的天线端口的信道信息，确定所述维度的测量信道矩阵。The measurement channel matrix of the dimension is determined according to the modified each of the dimension group channel matrices, and an implementation manner thereof may be: removing the modified from each of the dimension group channel matrices. The measured channel information of the antenna port is repeated to determine the measured channel matrix of the dimension.
在一个实施例中，本公开还提供了一种下行参考信号的发送方法，包括：In an embodiment, the present disclosure further provides a method for transmitting a downlink reference signal, including:
将水平维度的至少一行天线端口进行分组，和/或将垂直维度的至少一列天线端口进行分组； Grouping at least one row of antenna ports of a horizontal dimension, and/or grouping at least one column of antenna ports of a vertical dimension;
为用户设备分配水平维度测量周期，并为用户设备分配垂直维度测量周期；Allocating a horizontal dimension measurement period to the user equipment, and allocating a vertical dimension measurement period to the user equipment;
为水平维度的各组天线端口上的水平维度下行参考信号分配在水平维度测量周期内的偏移量；和/或，为垂直维度的各组天线端口上的垂直维度下行参考信号分配在垂直维度测量周期内的偏移量；Assigning an offset in the horizontal dimension measurement period to the horizontal dimension downlink reference signal on each set of antenna ports of the horizontal dimension; and/or assigning a vertical dimension downlink reference signal on each set of antenna ports in the vertical dimension to the vertical dimension The offset within the measurement period;
将水平维度测量周期和垂直维度测量周期，以及水平维度测量周期内的各个偏移量和/或垂直维度测量周期内的各个偏移量发送给所述用户设备；Transmitting the horizontal dimension measurement period and the vertical dimension measurement period, and each offset within the horizontal dimension measurement period and/or each offset within the vertical dimension measurement period to the user equipment;
在水平维度测量周期内发送水平维度下行参考信号；其中，如果为水平维度的各组天线端口上的水平维度下行参考信号分配了在水平维度测量周期内的偏移量，在水平维度测量周期内发送水平维度下行参考信号，包括：在水平维度测量周期内的各个偏移量指示的子帧上，分别通过水平维度的各组天线端口发送水平维度下行参考信号；Transmitting a horizontal dimension downlink reference signal in a horizontal dimension measurement period; wherein, if a horizontal dimension downlink reference signal on each group of antenna ports in a horizontal dimension is assigned an offset in a horizontal dimension measurement period, in a horizontal dimension measurement period Transmitting the horizontal dimension downlink reference signal includes: transmitting, in the subframe indicated by each offset in the horizontal dimension measurement period, the horizontal dimension downlink reference signal by each group of antenna ports in the horizontal dimension;
在垂直维度测量周期内发送垂直维度下行参考信号；其中，如果为垂直维度的各组天线端口上的垂直维度下行参考信号分配了在垂直维度测量周期内的偏移量，在垂直维度测量周期内发送垂直维度下行参考信号，包括：在垂直维度测量周期内的各个偏移量指示的子帧上，分别通过垂直维度的各组天线端口发送垂直维度下行参考信号。Transmitting a vertical dimension downlink reference signal during a vertical dimension measurement period; wherein, if a vertical dimension downlink reference signal on each group of antenna ports of a vertical dimension is assigned an offset within a vertical dimension measurement period, within a vertical dimension measurement period Transmitting the vertical dimension downlink reference signal includes: transmitting, on the subframe indicated by each offset in the vertical dimension measurement period, the vertical dimension downlink reference signal by each group of antenna ports of the vertical dimension.
可选地，水平维度的每组天线端口与相邻的水平维度的每组天线端口之间均有一个重复的天线端口，垂直维度的每组天线端口与相邻的垂直维度的每组天线端口之间均有一个重复的天线端口。Optionally, each set of antenna ports in the horizontal dimension has a repeating antenna port between each set of antenna ports in the adjacent horizontal dimension, each set of antenna ports in the vertical dimension and each set of antenna ports in the adjacent vertical dimension There is a duplicate antenna port between them.
其中，将水平维度的至少一行天线端口进行分组，和/或将垂直维度的至少一列天线端口进行分组，其一种实现方式可以是：Wherein, at least one row of antenna ports in the horizontal dimension is grouped, and/or at least one column of antenna ports in the vertical dimension is grouped. One implementation manner may be:
确定所述水平维度的至少一行天线端口的分组数量；Determining a number of packets of at least one row of antenna ports of the horizontal dimension;
确定水平维度的各组天线端口包括的天线端口数量；Determining the number of antenna ports included in each group of antenna ports in the horizontal dimension;
根据所述水平维度的至少一行天线端口的分组数量和所述水平维度的每组天线端口包括的天线端口数量，将所述水平维度的至少一行天线端口分组，其中，水平维度的每组天线端口在水平维度上连续排布；And grouping at least one row of antenna ports of the horizontal dimension according to a number of packets of at least one row of antenna ports of the horizontal dimension and an number of antenna ports of each group of antenna ports of the horizontal dimension, wherein each group of antenna ports of the horizontal dimension Continually arranged in the horizontal dimension;
和/或，and / or,
确定所述垂直维度的至少一列天线端口的分组数量； Determining a number of packets of at least one column of antenna ports of the vertical dimension;
确定垂直维度的各组天线端口包括的天线端口数量；Determining the number of antenna ports included in each group of antenna ports in the vertical dimension;
根据所述垂直维度的至少一列天线端口的分组数量和所述垂直维度的各组天线端口包括的天线端口数量，将所述垂直维度的至少一列天线端口分组，其中，垂直维度的每组天线端口在垂直维度上连续排布。And grouping at least one column of antenna ports of the vertical dimension according to a number of packets of at least one column of antenna ports of the vertical dimension and an number of antenna ports of each group of antenna ports of the vertical dimension, wherein each group of antenna ports of a vertical dimension Arranged consecutively in the vertical dimension.
基于与方法同样的发明构思，本公开实施例还提供一种信道状态信息反馈装置，包括：Based on the same inventive concept as the method, the embodiment of the present disclosure further provides a channel state information feedback device, including:
测量信道矩阵确定模块，用于接收水平维度下行参考信号，并根据所述水平维度下行参考信号确定水平维度的测量信道矩阵；和/或，接收垂直维度下行参考信号，并根据所述垂直维度下行参考信号确定垂直维度的测量信道矩阵；a measurement channel matrix determining module, configured to receive a horizontal dimension downlink reference signal, and determine a horizontal channel measurement channel matrix according to the horizontal dimension downlink reference signal; and/or receive a vertical dimension downlink reference signal, and downlink according to the vertical dimension The reference signal determines a measurement channel matrix of a vertical dimension;
其中，接收水平维度下行参考信号，并根据所述水平维度下行参考信号确定水平维度的测量信道矩阵，包括：在基站配置的水平维度测量周期内的各个偏移量指示的子帧上分别接收水平维度下行参考信号，根据每个所述子帧上接收到的水平维度下行参考信号分别获取每一个水平维度组信道矩阵，并根据各个水平维度组信道矩阵，确定水平维度的测量信道矩阵；和/或接收垂直维度下行参考信号，并根据所述垂直维度下行参考信号确定垂直维度的测量信道矩阵，包括：在基站配置的垂直维度测量周期内的各个偏移量指示的子帧上分别接收垂直维度下行参考信号，根据每个所述子帧上接收到的垂直维度下行参考信号分别获取每一个垂直维度组信道矩阵，并根据各个垂直维度组信道矩阵，确定垂直维度的测量信道矩阵；在相同维度测量周期内的每个所述子帧上接收到的所述维度下行参考信号分别对应所述维度的一组天线端口，所述维度的各组天线端口是所述基站对所述维度的至少一行或列天线端口分组确定的；The receiving the horizontal dimension downlink reference signal, and determining the measurement channel matrix of the horizontal dimension according to the horizontal dimension downlink reference signal, including: receiving the level respectively on the subframe indicated by each offset in the horizontal dimension measurement period configured by the base station a dimension downlink reference signal, which acquires each horizontal dimension group channel matrix according to the horizontal dimension downlink reference signal received on each of the subframes, and determines a measurement channel matrix of a horizontal dimension according to each horizontal dimension group channel matrix; and/ Or receiving a vertical dimension downlink reference signal, and determining a measurement channel matrix of a vertical dimension according to the vertical dimension downlink reference signal, including: receiving vertical dimensions respectively on subframes indicated by respective offsets in a vertical dimension measurement period configured by the base station And determining, by the downlink reference signal, each vertical dimension group channel matrix according to the vertical dimension downlink reference signal received on each of the subframes, and determining a vertical channel measurement channel matrix according to each vertical dimension group channel matrix; Each of the sub-periods within the measurement period The dimensional downlink reference signals received on the frame respectively correspond to a group of antenna ports of the dimension, and each group of antenna ports of the dimension is determined by the base station grouping at least one row or column antenna port of the dimension;
三维空间信道矩阵确定模块，用于根据水平维度的测量信道矩阵和垂直维度的测量信道矩阵，确定三维空间信道矩阵；a three-dimensional spatial channel matrix determining module, configured to determine a three-dimensional spatial channel matrix according to a measurement channel matrix of a horizontal dimension and a measurement channel matrix of a vertical dimension;
信道状态信息确定及反馈模块，用于根据三维空间信道矩阵，确定信道状态信息，并将确定的信道状态信息反馈给所述基站。The channel state information determining and feedback module is configured to determine channel state information according to the three-dimensional spatial channel matrix, and feed back the determined channel state information to the base station.
可选地，相同维度的每组天线端口与相邻的所述维度的每组天线端口之间均有一个重复测量的天线端口；根据各个所述维度组信道矩阵，确定所述 维度的测量信道矩阵时，测量信道矩阵确定模块用于：Optionally, each set of antenna ports of the same dimension and each set of antenna ports of the adjacent dimension have an antenna port that is repeatedly measured; and according to each of the dimension group channel matrices, determining the When measuring the channel matrix of dimensions, the measurement channel matrix determination module is used to:
对各个所述维度组信道矩阵进行修正；Correcting each of the dimensional group channel matrices;
根据修正后的各个所述维度组信道矩阵，确定所述维度的测量信道矩阵。And determining a measurement channel matrix of the dimension according to each of the modified dimension group channel matrices.
其中，对各个所述维度组信道矩阵进行修正时，测量信道矩阵确定模块用于：Wherein, when modifying each of the dimensional group channel matrices, the measurement channel matrix determining module is configured to:
分别根据所述维度的每组天线端口的所述重复测量的天线端口所测量得到天线端口信道信息，对各个所述维度组信道矩阵进行修正，得到修正后的各个所述维度组信道矩阵。The antenna port channel information is measured according to the repeatedly measured antenna ports of each set of antenna ports of the dimension, and each of the dimensional group channel matrices is corrected to obtain a modified each of the dimensional group channel matrices.
基于上述任意装置实施例，其中，根据修正后的各个所述维度组信道矩阵，确定所述维度的测量信道矩阵时，测量信道矩阵确定模块用于：The measurement channel matrix determining module is configured to: when determining the measurement channel matrix of the dimension according to the modified each of the dimension group channel matrices, according to any of the foregoing device embodiments:
从修正后的各个所述维度组信道矩阵去掉所述重复测量的天线端口的信道信息，确定所述维度的测量信道矩阵。The channel information of the repeatedly measured antenna port is removed from the modified each of the dimensional group channel matrices, and the measured channel matrix of the dimension is determined.
基于与方法同样的发明构思，本公开实施例还提供一种UE，包括：Based on the same inventive concept as the method, the embodiment of the present disclosure further provides a UE, including:
处理器，用于读取存储器中的程序，执行下列过程：A processor for reading a program in the memory, performing the following process:
接收水平维度下行参考信号，并根据所述水平维度下行参考信号确定水平维度的测量信道矩阵；和/或，接收垂直维度下行参考信号，并根据所述垂直维度下行参考信号确定垂直维度的测量信道矩阵；Receiving a horizontal dimension downlink reference signal, and determining a measurement channel matrix of a horizontal dimension according to the horizontal dimension downlink reference signal; and/or receiving a vertical dimension downlink reference signal, and determining a vertical dimension measurement channel according to the vertical dimension downlink reference signal matrix;
其中，接收水平维度下行参考信号，并根据所述水平维度下行参考信号确定水平维度的测量信道矩阵，包括：在基站配置的水平维度测量周期内的各个偏移量指示的子帧上分别接收水平维度下行参考信号，根据每个所述子帧上接收到的水平维度下行参考信号分别获取每一个水平维度组信道矩阵，并根据各个水平维度组信道矩阵，确定水平维度的测量信道矩阵；和/或接收垂直维度下行参考信号，并根据所述垂直维度下行参考信号确定垂直维度的测量信道矩阵，包括：在基站配置的垂直维度测量周期内的各个偏移量指示的子帧上分别接收垂直维度下行参考信号，根据每个所述子帧上接收到的垂直维度下行参考信号分别获取每一个垂直维度组信道矩阵，并根据各个垂直维度组信道矩阵，确定垂直维度的测量信道矩阵；在相同维度测量周期内的每个所述子帧上接收到的所述维度下行参考信号分别对应所述维度的一组天线端口，所述维度的各组天线端口是所述基站对所述维度的至少一行或列天 线端口分组确定的；The receiving the horizontal dimension downlink reference signal, and determining the measurement channel matrix of the horizontal dimension according to the horizontal dimension downlink reference signal, including: receiving the level respectively on the subframe indicated by each offset in the horizontal dimension measurement period configured by the base station a dimension downlink reference signal, which acquires each horizontal dimension group channel matrix according to the horizontal dimension downlink reference signal received on each of the subframes, and determines a measurement channel matrix of a horizontal dimension according to each horizontal dimension group channel matrix; and/ Or receiving a vertical dimension downlink reference signal, and determining a measurement channel matrix of a vertical dimension according to the vertical dimension downlink reference signal, including: receiving vertical dimensions respectively on subframes indicated by respective offsets in a vertical dimension measurement period configured by the base station And determining, by the downlink reference signal, each vertical dimension group channel matrix according to the vertical dimension downlink reference signal received on each of the subframes, and determining a vertical channel measurement channel matrix according to each vertical dimension group channel matrix; Each of the sub-periods within the measurement period The dimensional downlink reference signals received on the frame respectively correspond to a group of antenna ports of the dimension, and each group of antenna ports of the dimension is at least one row or column of the dimension of the base station. Line port grouping determined;
根据水平维度的测量信道矩阵和垂直维度的测量信道矩阵，确定三维空间信道矩阵；Determining a three-dimensional spatial channel matrix according to a measurement channel matrix of a horizontal dimension and a measurement channel matrix of a vertical dimension;
根据三维空间信道矩阵，确定信道状态信息，并将确定的信道状态信息反馈给所述基站；Determining channel state information according to the three-dimensional spatial channel matrix, and feeding back the determined channel state information to the base station;
收发机，用于在处理器的控制下接收和发送数据；a transceiver for receiving and transmitting data under the control of a processor;
存储器，用于保存处理器执行操作时所使用的数据。A memory that holds the data used by the processor to perform operations.
可选地，相同维度的每组天线端口与相邻的所述维度的每组天线端口之间均有一个重复测量的天线端口。相应的，根据各个所述维度组信道矩阵，确定所述维度的测量信道矩阵时，处理器用于读取存储器中的程序，执行下列过程：Optionally, there is an repeatedly measured antenna port between each set of antenna ports of the same dimension and each set of antenna ports of the adjacent dimension. Correspondingly, when determining the measurement channel matrix of the dimension according to each of the dimension group channel matrices, the processor is configured to read a program in the memory, and perform the following process:
对各个所述维度组信道矩阵进行修正；Correcting each of the dimensional group channel matrices;
根据修正后的各个所述维度组信道矩阵，确定所述维度的测量信道矩阵。And determining a measurement channel matrix of the dimension according to each of the modified dimension group channel matrices.
其中，对各个所述维度组信道矩阵进行修正时，处理器用于读取存储器中的程序，执行下列过程：Wherein, when modifying each of the dimensional group channel matrices, the processor is configured to read a program in the memory and perform the following process:
分别根据所述维度的每组天线端口的所述重复测量的天线端口所测量得到天线端口信道信息，对各个所述维度组信道矩阵进行修正，得到修正后的各个所述维度组信道矩阵。The antenna port channel information is measured according to the repeatedly measured antenna ports of each set of antenna ports of the dimension, and each of the dimensional group channel matrices is corrected to obtain a modified each of the dimensional group channel matrices.
基于上述任意装置实施例，其中，根据修正后的各个所述维度组信道矩阵，确定所述维度的测量信道矩阵时，处理器用于读取存储器中的程序，执行下列过程：Based on any of the foregoing device embodiments, wherein, when determining the measured channel matrix of the dimension according to the modified each of the dimensional group channel matrices, the processor is configured to read a program in the memory, and perform the following process:
从修正后的各个所述维度组信道矩阵去掉所述重复测量的天线端口的信道信息，确定所述维度的测量信道矩阵。The channel information of the repeatedly measured antenna port is removed from the modified each of the dimensional group channel matrices, and the measured channel matrix of the dimension is determined.
基于与方法同样的发明构思，本公开实施例还提供一种下行参考信号的发送装置，包括：Based on the same inventive concept as the method, the embodiment of the present disclosure further provides a downlink reference signal sending apparatus, including:
天线端口分组模块，用于将水平维度的至少一行天线端口进行分组，和/或将垂直维度的至少一列天线端口进行分组；An antenna port grouping module, configured to group at least one row of antenna ports in a horizontal dimension, and/or to group at least one column of antenna ports in a vertical dimension;
参考信号资源分配模块，用于为用户设备分配水平维度测量周期，并为用户设备分配垂直维度测量周期； a reference signal resource allocation module, configured to allocate a horizontal dimension measurement period to the user equipment, and allocate a vertical dimension measurement period to the user equipment;
偏移量分配模块，用于为水平维度的各组天线端口上的水平维度下行参考信号分配在水平维度测量周期内的偏移量；和/或，为垂直维度的各组天线端口上的垂直维度下行参考信号分配在垂直维度测量周期内的偏移量；An offset allocation module, configured to allocate an offset in a horizontal dimension measurement period for a horizontal dimension downlink reference signal on each group of antenna ports of a horizontal dimension; and/or a vertical on each group of antenna ports in a vertical dimension The dimension downlink reference signal is assigned an offset in the vertical dimension measurement period;
配置信息发送模块，用于将水平维度测量周期和垂直维度测量周期，以及水平维度测量周期内的各个偏移量和/或垂直维度测量周期内的各个偏移量发送给所述用户设备；a configuration information sending module, configured to send the horizontal dimension measurement period and the vertical dimension measurement period, and each offset within the horizontal dimension measurement period and/or each offset within the vertical dimension measurement period to the user equipment;
水平维度参考信号发送模块，用于在水平维度测量周期内发送水平维度下行参考信号；其中，如果为水平维度的各组天线端口上的水平维度下行参考信号分配了在水平维度测量周期内的偏移量，在水平维度测量周期内发送水平维度下行参考信号，包括：在水平维度测量周期内的各个偏移量指示的子帧上，分别通过水平维度的各组天线端口发送水平维度下行参考信号；a horizontal dimension reference signal sending module, configured to send a horizontal dimension downlink reference signal in a horizontal dimension measurement period; wherein, if a horizontal dimension downlink reference signal on each group of antenna ports in a horizontal dimension is assigned a bias in a horizontal dimension measurement period Transmitting, transmitting the horizontal dimension downlink reference signal in the horizontal dimension measurement period, including: transmitting the horizontal dimension downlink reference signal through each group of antenna ports of the horizontal dimension on the subframe indicated by each offset in the horizontal dimension measurement period ;
垂直维度参考信号发送模块，用于在垂直维度测量周期内发送垂直维度下行参考信号；其中，如果为垂直维度的各组天线端口上的垂直维度下行参考信号分配了在垂直维度测量周期内的偏移量，在垂直维度测量周期内发送垂直维度下行参考信号，包括：在垂直维度测量周期内的各个偏移量指示的子帧上，分别通过垂直维度的各组天线端口发送垂直维度下行参考信号。a vertical dimension reference signal sending module, configured to send a vertical dimension downlink reference signal in a vertical dimension measurement period; wherein if a vertical dimension downlink reference signal on each group of antenna ports in a vertical dimension is assigned a bias in a vertical dimension measurement period Transmitting, transmitting a vertical dimension downlink reference signal in a vertical dimension measurement period, including: transmitting a vertical dimension downlink reference signal through each group of antenna ports of a vertical dimension on a subframe indicated by each offset in a vertical dimension measurement period .
可选地，水平维度的每组天线端口与相邻的水平维度的每组天线端口之间均有一个重复的天线端口，垂直维度的每组天线端口与相邻的垂直维度的每组天线端口之间均有一个重复的天线端口。Optionally, each set of antenna ports in the horizontal dimension has a repeating antenna port between each set of antenna ports in the adjacent horizontal dimension, each set of antenna ports in the vertical dimension and each set of antenna ports in the adjacent vertical dimension There is a duplicate antenna port between them.
其中，所述天线端口分组模块具体用于：The antenna port grouping module is specifically configured to:
确定所述水平维度的至少一行天线端口的分组数量；Determining a number of packets of at least one row of antenna ports of the horizontal dimension;
确定水平维度的各组天线端口包括的天线端口数量；Determining the number of antenna ports included in each group of antenna ports in the horizontal dimension;
根据所述水平维度的至少一行天线端口的分组数量和所述水平维度的每组天线端口包括的天线端口数量，将所述水平维度的至少一行天线端口分组，其中，水平维度的每组天线端口在水平维度上连续排布；And grouping at least one row of antenna ports of the horizontal dimension according to a number of packets of at least one row of antenna ports of the horizontal dimension and an number of antenna ports of each group of antenna ports of the horizontal dimension, wherein each group of antenna ports of the horizontal dimension Continually arranged in the horizontal dimension;
和/或，and / or,
确定所述垂直维度的至少一列天线端口的分组数量；Determining a number of packets of at least one column of antenna ports of the vertical dimension;
确定垂直维度的各组天线端口包括的天线端口数量；Determining the number of antenna ports included in each group of antenna ports in the vertical dimension;
根据所述垂直维度的至少一列天线端口的分组数量和所述垂直维度的各 组天线端口包括的天线端口数量，将所述垂直维度的至少一列天线端口分组，其中，垂直维度的每组天线端口在垂直维度上连续排布。a number of groups of at least one column of antenna ports according to the vertical dimension and each of the vertical dimensions The group antenna port includes an antenna port number, and at least one column antenna port of the vertical dimension is grouped, wherein each group of antenna ports of the vertical dimension is continuously arranged in a vertical dimension.
基于与方法同样的发明构思，本公开实施例还提供一种基站，包括：Based on the same inventive concept as the method, the embodiment of the present disclosure further provides a base station, including:
处理器，用于读取存储器中的程序，执行下列过程：A processor for reading a program in the memory, performing the following process:
将水平维度的至少一行天线端口进行分组，和/或将垂直维度的至少一列天线端口进行分组；Grouping at least one row of antenna ports of a horizontal dimension, and/or grouping at least one column of antenna ports of a vertical dimension;
为用户设备分配水平维度测量周期，并为用户设备分配垂直维度测量周期；Allocating a horizontal dimension measurement period to the user equipment, and allocating a vertical dimension measurement period to the user equipment;
为水平维度的各组天线端口上的水平维度下行参考信号分配在水平维度测量周期内的偏移量；和/或，为垂直维度的各组天线端口上的垂直维度下行参考信号分配在垂直维度测量周期内的偏移量；Assigning an offset in the horizontal dimension measurement period to the horizontal dimension downlink reference signal on each set of antenna ports of the horizontal dimension; and/or assigning a vertical dimension downlink reference signal on each set of antenna ports in the vertical dimension to the vertical dimension The offset within the measurement period;
将水平维度测量周期和垂直维度测量周期，以及水平维度测量周期内的各个偏移量和/或垂直维度测量周期内的各个偏移量发送给所述用户设备；Transmitting the horizontal dimension measurement period and the vertical dimension measurement period, and each offset within the horizontal dimension measurement period and/or each offset within the vertical dimension measurement period to the user equipment;
在水平维度测量周期内发送水平维度下行参考信号；其中，如果为水平维度的各组天线端口上的水平维度下行参考信号分配了在水平维度测量周期内的偏移量，在水平维度测量周期内发送水平维度下行参考信号，包括：在水平维度测量周期内的各个偏移量指示的子帧上，分别通过水平维度的各组天线端口发送水平维度下行参考信号；Transmitting a horizontal dimension downlink reference signal in a horizontal dimension measurement period; wherein, if a horizontal dimension downlink reference signal on each group of antenna ports in a horizontal dimension is assigned an offset in a horizontal dimension measurement period, in a horizontal dimension measurement period Transmitting the horizontal dimension downlink reference signal includes: transmitting, in the subframe indicated by each offset in the horizontal dimension measurement period, the horizontal dimension downlink reference signal by each group of antenna ports in the horizontal dimension;
在垂直维度测量周期内发送垂直维度下行参考信号；其中，如果为垂直维度的各组天线端口上的垂直维度下行参考信号分配了在垂直维度测量周期内的偏移量，在垂直维度测量周期内发送垂直维度下行参考信号，包括：在垂直维度测量周期内的各个偏移量指示的子帧上，分别通过垂直维度的各组天线端口发送垂直维度下行参考信号；Transmitting a vertical dimension downlink reference signal during a vertical dimension measurement period; wherein, if a vertical dimension downlink reference signal on each group of antenna ports of a vertical dimension is assigned an offset within a vertical dimension measurement period, within a vertical dimension measurement period Transmitting a vertical dimension downlink reference signal, including: transmitting, in a subframe indicated by each offset in a vertical dimension measurement period, a vertical dimension downlink reference signal by each group of antenna ports of a vertical dimension;
收发机，用于在处理器的控制下接收和发送数据；a transceiver for receiving and transmitting data under the control of a processor;
存储器，用于保存处理器执行操作时所使用的数据。A memory that holds the data used by the processor to perform operations.
可选地，水平维度的每组天线端口与相邻的水平维度的每组天线端口之间均有一个重复的天线端口，垂直维度的每组天线端口与相邻的垂直维度的每组天线端口之间均有一个重复的天线端口。Optionally, each set of antenna ports in the horizontal dimension has a repeating antenna port between each set of antenna ports in the adjacent horizontal dimension, each set of antenna ports in the vertical dimension and each set of antenna ports in the adjacent vertical dimension There is a duplicate antenna port between them.
其中，将水平维度的至少一行天线端口进行分组，和/或将垂直维度的至 少一列天线端口进行分组时，处理器用于读取存储器中的程序，执行下列过程：Wherein at least one row of antenna ports of the horizontal dimension are grouped, and/or the vertical dimension is When one column of antenna ports is grouped, the processor reads the program in the memory and performs the following process:
确定所述水平维度的至少一行天线端口的分组数量；Determining a number of packets of at least one row of antenna ports of the horizontal dimension;
确定水平维度的各组天线端口包括的天线端口数量；Determining the number of antenna ports included in each group of antenna ports in the horizontal dimension;
根据所述水平维度的至少一行天线端口的分组数量和所述水平维度的每组天线端口包括的天线端口数量，将所述水平维度的至少一行天线端口分组，其中，水平维度的每组天线端口在水平维度上连续排布；And grouping at least one row of antenna ports of the horizontal dimension according to a number of packets of at least one row of antenna ports of the horizontal dimension and an number of antenna ports of each group of antenna ports of the horizontal dimension, wherein each group of antenna ports of the horizontal dimension Continually arranged in the horizontal dimension;
和/或，and / or,
确定所述垂直维度的至少一列天线端口的分组数量；Determining a number of packets of at least one column of antenna ports of the vertical dimension;
确定垂直维度的各组天线端口包括的天线端口数量；Determining the number of antenna ports included in each group of antenna ports in the vertical dimension;
根据所述垂直维度的至少一列天线端口的分组数量和所述垂直维度的各组天线端口包括的天线端口数量，将所述垂直维度的至少一列天线端口分组，其中，垂直维度的每组天线端口在垂直维度上连续排布。And grouping at least one column of antenna ports of the vertical dimension according to a number of packets of at least one column of antenna ports of the vertical dimension and an number of antenna ports of each group of antenna ports of the vertical dimension, wherein each group of antenna ports of a vertical dimension Arranged consecutively in the vertical dimension.
本公开实施例提供的技术方案，基站分别在水平维度和/或垂直维度上对天线端口进行分组，分别在水平维度的各组天线端口发送水平维度下行参考信号，和/或在垂直维度的各组天线端口发送垂直维度下行参考信号。用户设备根据水平维度和/或垂直维度接收到的各组天线端口对应的下行参考信号，得到水平维度和/或垂直维度的测量信道矩阵，进而进行信道状态信息的反馈，解决了大规模天线阵列场景下，信道状态信息反馈的问题。当每组天线端口数不超过现有系统支持的下行参考信号端口数时，可以利用现有的CSI-RS资源配置进行信道状态信息的反馈。应当指出的是，本公开实施例提供的方案同样适用于每组天线端口数超过现有系统支持的下行参考信号端口数的情形。在该情形下，需要配置新的参考信号资源，以支持信道状态信息的反馈。In the technical solution provided by the embodiment of the present disclosure, the base station separately groups the antenna ports in the horizontal dimension and/or the vertical dimension, and respectively sends the horizontal dimension downlink reference signals in each group of antenna ports in the horizontal dimension, and/or in the vertical dimension. The group antenna port transmits a vertical dimension downlink reference signal. The user equipment obtains the measurement channel matrix of the horizontal dimension and/or the vertical dimension according to the downlink reference signal corresponding to each group of antenna ports received in the horizontal dimension and/or the vertical dimension, and further performs feedback of the channel state information, thereby solving the large-scale antenna array. The problem of channel state information feedback in the scenario. When the number of antenna ports in each group does not exceed the number of downlink reference signal ports supported by the existing system, the channel state information feedback can be performed by using the existing CSI-RS resource configuration. It should be noted that the solution provided by the embodiment of the present disclosure is also applicable to the case where the number of antenna ports per group exceeds the number of downlink reference signal ports supported by the existing system. In this case, new reference signal resources need to be configured to support feedback of channel state information.
附图说明DRAWINGS
图1为本公开实施例提供的下行参考信号发送方法流程图；FIG. 1 is a flowchart of a downlink reference signal sending method according to an embodiment of the present disclosure;
图2为本公开实施例提供的双极化天线阵列中天线端口分组方式示意图；2 is a schematic diagram of a grouping manner of antenna ports in a dual-polarized antenna array according to an embodiment of the present disclosure;
图3为本公开实施例提供的单极化天线阵列中天线端口分组方式示意图；FIG. 3 is a schematic diagram of grouping manners of antenna ports in a single-polarized antenna array according to an embodiment of the present disclosure;
图4为本公开实施例提供的本公开实施例提供的一种CSI-RS资源分组配置方案示意图； FIG. 4 is a schematic diagram of a CSI-RS resource grouping configuration scheme according to an embodiment of the present disclosure;
图5为本公开实施例提供的信道状态信息反馈方法流程图；FIG. 5 is a flowchart of a channel state information feedback method according to an embodiment of the present disclosure;
图6为本公开实施例提供的一种水平维度信道测量方法示意图；FIG. 6 is a schematic diagram of a method for measuring a horizontal dimension channel according to an embodiment of the present disclosure;
图7为本公开实施例提供的一种垂直维度信道测量方法示意图；FIG. 7 is a schematic diagram of a method for measuring a vertical dimension channel according to an embodiment of the present disclosure;
图8为本公开实施例提供的信道状态信息反馈装置示意图；FIG. 8 is a schematic diagram of a channel state information feedback apparatus according to an embodiment of the present disclosure;
图9为本公开实施例提供的一种UE结构示意图；FIG. 9 is a schematic structural diagram of a UE according to an embodiment of the present disclosure;
图10为本公开实施例提供的下行参考信号的发送装置示意图；FIG. 10 is a schematic diagram of a device for transmitting a downlink reference signal according to an embodiment of the present disclosure;
图11为本公开实施例提供的基站结构示意图。FIG. 11 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
具体实施方式detailed description
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例的附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本公开保护的范围。The technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. It is apparent that the described embodiments are part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure are within the scope of the disclosure.
本公开实施例提供的技术方案，基站可以以端口数不超过现有系统支持的端口数的CSI-RS资源为基础，实现大规模天线系统中对UE配置下行参考信号。UE根据基站天线到UE的信道估计确定信道状态信息并反馈。In the technical solution provided by the embodiment of the present disclosure, the base station may implement the downlink reference signal for the UE in the large-scale antenna system based on the CSI-RS resources whose number of ports does not exceed the number of ports supported by the existing system. The UE determines channel state information and feeds back according to the channel estimation of the base station antenna to the UE.
下面将结合附图，分别对本公开实施例提供的基站侧进行下行参考信号发送的实现方式，以及UE侧进行信道状态信息反馈的实现方式进行说明。The implementation manner of performing downlink reference signal transmission on the base station side and the implementation manner of channel state information feedback on the UE side according to the embodiment of the present disclosure will be described below with reference to the accompanying drawings.
基站侧发送下行参考信号的实现方式如图1所示，具体包括如下操作：The implementation manner of transmitting the downlink reference signal on the base station side is as shown in FIG. 1 , and specifically includes the following operations:
步骤100、将水平维度的至少一行天线端口进行分组，和/或将所述垂直维度的至少一列天线端口进行分组。Step 100: Group at least one row of antenna ports of a horizontal dimension, and/or group at least one column of antenna ports of the vertical dimension.
本公开实施例中，对于单极化天线振子，一个天线振子有一个天线端口；对于双极化天线振子，一个天线振子有两个天线端口。In the embodiment of the present disclosure, for a single-polarized antenna element, one antenna element has one antenna port; for a dual-polarized antenna element, one antenna element has two antenna ports.
本公开实施例中，进行分组的天线端口的选择可以是任意的，也可以是按照预设规则选择的。In the embodiment of the present disclosure, the selection of the antenna port for grouping may be arbitrary, or may be selected according to a preset rule.
步骤110、为用户设备分配水平维度测量周期，并为用户设备分配垂直维度测量周期。Step 110: Assign a horizontal dimension measurement period to the user equipment, and allocate a vertical dimension measurement period to the user equipment.
可选地，还可以为用户设备分配水平维度的下行参考信号资源和垂直维度的下行参考信号资源。 Optionally, the user equipment may also be allocated a downlink reference signal resource of a horizontal dimension and a downlink reference signal resource of a vertical dimension.
步骤120、为水平维度的各组天线端口上的水平维度下行参考信号分配在水平维度测量周期内的偏移量；和/或，为垂直维度的各组天线端口上的垂直维度下行参考信号分配在垂直维度测量周期内的偏移量。Step 120: Allocate an offset in a horizontal dimension measurement period for a horizontal dimension downlink reference signal on each group of antenna ports of a horizontal dimension; and/or a vertical dimension downlink reference signal assignment on each group of antenna ports in a vertical dimension. The offset in the vertical dimension measurement period.
步骤130、将水平维度测量周期和垂直维度测量周期，以及水平维度测量周期内的各个偏移量和/或垂直维度测量周期内的各个偏移量发送给所述用户设备。Step 130: Send the horizontal dimension measurement period and the vertical dimension measurement period, and each offset within the horizontal dimension measurement period and/or each offset within the vertical dimension measurement period to the user equipment.
可选地，还将水平维度的下行参考信号资源和垂直维度的下行参考信号资源发送给所述用户设备。Optionally, the downlink reference signal resource of the horizontal dimension and the downlink reference signal resource of the vertical dimension are also sent to the user equipment.
步骤140、在水平维度测量周期内发送水平维度下行参考信号；其中，如果为水平维度的各组天线端口上的水平维度下行参考信号分配了在水平维度测量周期内的偏移量，在水平维度测量周期内发送水平维度下行参考信号，包括：在水平维度测量周期内的各个偏移量指示的子帧上，分别通过水平维度的各组天线端口发送水平维度下行参考信号。Step 140: Send a horizontal dimension downlink reference signal in a horizontal dimension measurement period; wherein, if the horizontal dimension downlink reference signal on each group of antenna ports in the horizontal dimension is assigned an offset in a horizontal dimension measurement period, in a horizontal dimension Transmitting the horizontal dimension downlink reference signal in the measurement period includes: transmitting, on the subframe indicated by each offset in the horizontal dimension measurement period, the horizontal dimension downlink reference signal by each group of antenna ports in the horizontal dimension.
步骤150、在垂直维度测量周期内发送垂直维度下行参考信号；其中，如果为垂直维度的各组天线端口上的垂直维度下行参考信号分配了在垂直维度测量周期内的偏移量，在垂直维度测量周期内发送垂直维度下行参考信号，包括：在垂直维度测量周期内的各个偏移量指示的子帧上，分别通过垂直维度的各组天线端口发送垂直维度下行参考信号。Step 150: Send a vertical dimension downlink reference signal in a vertical dimension measurement period; wherein, if the vertical dimension downlink reference signal on each group of antenna ports in the vertical dimension is assigned an offset in a vertical dimension measurement period, in a vertical dimension Transmitting the vertical dimension downlink reference signal during the measurement period includes: transmitting a vertical dimension downlink reference signal through each group of antenna ports of the vertical dimension on the subframes indicated by the respective offsets in the vertical dimension measurement period.
本公开实施例提供的技术方案，基站分别在水平维度和/或垂直维度上对天线端口进行分组，分别在水平维度的各组天线端口发送水平维度下行参考信号，和/或在垂直维度的各组天线端口发送垂直维度下行参考信号。以便用户设备根据水平维度和/或垂直维度接收到的各组天线端口对应的下行参考信号，得到水平维度和/或垂直维度的测量信道矩阵，进而进行信道状态信息的反馈，解决了大规模天线阵列场景下，信道状态信息反馈的问题。当每组天线端口数不超过现有系统支持的下行参考信号端口数时，可以利用现有的CSI-RS资源配置进行信道状态信息的反馈。应当指出的是，本公开实施例提供的方案同样适用于每组天线端口数超过现有系统支持的下行参考信号端口数的情形。在该情形下，需要配置新的参考信号资源，以支持信道状态信息的反馈。 In the technical solution provided by the embodiment of the present disclosure, the base station separately groups the antenna ports in the horizontal dimension and/or the vertical dimension, and respectively sends the horizontal dimension downlink reference signals in each group of antenna ports in the horizontal dimension, and/or in the vertical dimension. The group antenna port transmits a vertical dimension downlink reference signal. So that the user equipment obtains the measurement channel matrix of the horizontal dimension and/or the vertical dimension according to the downlink reference signal corresponding to each group of antenna ports received by the horizontal dimension and/or the vertical dimension, and then performs feedback of the channel state information, thereby solving the large-scale antenna. The problem of channel state information feedback in the array scenario. When the number of antenna ports in each group does not exceed the number of downlink reference signal ports supported by the existing system, the channel state information feedback can be performed by using the existing CSI-RS resource configuration. It should be noted that the solution provided by the embodiment of the present disclosure is also applicable to the case where the number of antenna ports per group exceeds the number of downlink reference signal ports supported by the existing system. In this case, new reference signal resources need to be configured to support feedback of channel state information.
可选地，水平维度的每组天线端口与相邻的水平维度的每组天线端口之间均有一个极化相同的重复的天线端口，垂直维度的每组天线端口与相邻的垂直维度的每组天线端口之间均有一个极化相同的重复的天线端口。Optionally, each set of antenna ports in the horizontal dimension and each set of antenna ports in the adjacent horizontal dimension have a repeating antenna port of the same polarization, each set of antenna ports in the vertical dimension and the adjacent vertical dimension There is a duplicate antenna port with the same polarization between each set of antenna ports.
本公开实施例中，相邻的两组天线端口是指这两组天线端口的组序号相邻。In the embodiment of the present disclosure, the adjacent two sets of antenna ports mean that the group numbers of the two sets of antenna ports are adjacent.
本公开实施例中，水平维度的每组天线端口与相邻的水平维度的每组天线端口之间均有一个极化相同的重复的天线端口，垂直维度的每组天线端口与相邻的垂直维度的每组天线端口之间均有一个极化相同的重复的天线端口，从而保证用户设备侧能够正确估计出水平维度的测量信道矩阵和垂直维度的测量信道矩阵，进而正确估计出信道状态信息。In the embodiment of the present disclosure, each set of antenna ports in the horizontal dimension and each set of antenna ports in the adjacent horizontal dimension have a repeating antenna port with the same polarization, and each set of antenna ports in the vertical dimension is adjacent to the adjacent vertical port. Each antenna port of the dimension has a repeating antenna port with the same polarization, so that the user equipment side can correctly estimate the measurement channel matrix of the horizontal dimension and the measurement channel matrix of the vertical dimension, thereby correctly estimating the channel state information. .
本公开实施例中，可选地，将水平维度的一行天线端口进行分组，和/或将垂直维度的一行天线端口进行分组。其中，可以选择水平维度的任意一行天线端口进行分组，可以选择垂直维度的任意一行天线端口进行分组。下面以该优选方式结合具体应用场景为例，对基站侧发送下行参考信号的具体实现方式进行详细说明。In an embodiment of the present disclosure, optionally, a row of antenna ports of a horizontal dimension are grouped, and/or a row of antenna ports of a vertical dimension are grouped. Wherein, any row of antenna ports in the horizontal dimension may be selected for grouping, and any row of antenna ports in the vertical dimension may be selected for grouping. The specific implementation manner of transmitting the downlink reference signal on the base station side is described in detail in the following.
假设基站的天线阵列由Nrow行、Ncol列天线组成，天线极化个数为Npol。如果Npol的取值为1，则天线为单极化天线振子，即一个天线振子包括一个天线端口；如果Npol的取值为2，则天线为双极化天线振子，即一个天线振子包括两个天线端口。It is assumed that the antenna array of the base station is composed of N row rows and N col column antennas, and the number of antenna polarizations is N pol . If the value of N pol is 1, the antenna is a single-polarized antenna element, that is, one antenna element includes one antenna port; if the value of N pol is 2, the antenna is a dual-polarized antenna element, that is, an antenna element includes Two antenna ports.
天线端口在垂直维度的序号为nv＝1，…，Nv，并且Nv＝Nrow。天线端口在水平维度的序号为nh＝1，…，Nh，且nh＝(npol-1)Ncol+ncol，并且Nh＝NpolNcol，npol为天线端口的极化序号，ncol为天线端口所在列的列序号。The serial number of the antenna port in the vertical dimension is n v =1,..., N v , and N v =N row . The serial number of the antenna port in the horizontal dimension is n h =1,...,N h , and n h =(n pol -1)N col +n col , and N h =N pol N col , n pol is the pole of the antenna port The serial number, n col is the column number of the column where the antenna port is located.
基站从Nrow行天线端口中任意选择一行水平维度天线端口形成水平维度的天线端口，并从Ncol列天线端口中任意选择一个极化的一列垂直维度的天线端口形成垂直维度的天线端口。The base station randomly selects one row of horizontal dimension antenna ports from the N row row antenna ports to form a horizontal dimension antenna port, and arbitrarily selects one polarized column of vertical dimension antenna ports from the N col column antenna ports to form a vertical dimension antenna port.
对选择的水平维度的天线端口及垂直维度的天线端口进行分组的实现方式有多种，只要保证水平维度的每组天线端口与相邻的水平维度的每组天线端口之间均有一个极化相同的重复的天线端口，以及垂直维度的每组天线端口与相邻的垂直维度的每组天线端口之间均有一个极化相同的重复的天线端 口。There are various ways to group the antenna ports of the selected horizontal dimension and the antenna ports of the vertical dimension, as long as there is a polarization between each set of antenna ports in the horizontal dimension and each set of antenna ports in the adjacent horizontal dimension. The same repeated antenna port, and each set of antenna ports in the vertical dimension and each set of antenna ports in the adjacent vertical dimension have a repeating antenna end with the same polarization mouth.
可选地，在对水平维度的一行天线端口及垂直维度的一列天线端口进行分组时，采用连续分组方式。即，水平维度的每组天线端口在水平维度上连续排布，垂直维度的每组天线端口在垂直维度上连续排布。那么，水平维度的两组天线端口相邻，具体是指这两组天线端口在水平维度上连续排布；垂直维度的两组天线端口相邻，具体是指这两组天线端口在垂直维度上连续排布。Optionally, when grouping one row of antenna ports in the horizontal dimension and one column of antenna ports in the vertical dimension, a continuous grouping manner is adopted. That is, each set of antenna ports of the horizontal dimension is continuously arranged in the horizontal dimension, and each set of antenna ports of the vertical dimension is continuously arranged in the vertical dimension. Then, the two sets of antenna ports in the horizontal dimension are adjacent, specifically, the two sets of antenna ports are consecutively arranged in the horizontal dimension; the two sets of antenna ports in the vertical dimension are adjacent, specifically, the two sets of antenna ports are in the vertical dimension. Continuously arranged.
可选地，在对水平维度的一行天线端口及垂直维度的一列天线端口进行分组时，尽量使得每组的天线端口数为标准支持的最大端口数。例如，目前标准支持的最大CSI-RS端口数为8，则尽量使得每组的天线端口数为8。Optionally, when grouping one row of antenna ports in a horizontal dimension and one column of antenna ports in a vertical dimension, try to make the number of antenna ports in each group as the maximum number of ports supported by the standard. For example, if the maximum number of CSI-RS ports supported by the standard is 8, the number of antenna ports in each group should be as high as 8.
应当指出的是，实际应用中，可以仅满足上述任意可选地分组方式提出的分组条件，也可以满足上述所有分组方式提出的分组条件。It should be noted that, in practical applications, only the grouping conditions proposed by any of the above optional grouping methods may be satisfied, and the grouping conditions proposed by all the grouping methods described above may also be satisfied.
该可选地分组方式的具体实现如下：The specific implementation of the optional grouping method is as follows:
首先确定分组数。First determine the number of groups.
如果是双极化天线振子，选择的水平维度的天线端口的分组数量
Figure PCTCN2016070908-appb-000001
可以但不仅限于通过如下公式1确定，选择的垂直维度的天线端口的分组数量
Figure PCTCN2016070908-appb-000002
可以但不仅限于通过如下公式2确定：If it is a dual-polarized antenna oscillator, the number of packets of the antenna port of the selected horizontal dimension is selected.
Figure PCTCN2016070908-appb-000001
The number of packets of the antenna port of the selected vertical dimension may be determined by, but not limited to, the following formula 1.
Figure PCTCN2016070908-appb-000002
It can be, but is not limited to, determined by the following formula 2:
Figure PCTCN2016070908-appb-000003
  公式1
Figure PCTCN2016070908-appb-000003
 Formula 1
Figure PCTCN2016070908-appb-000004
  公式2
Figure PCTCN2016070908-appb-000004
 Formula 2
如果是单极化天线振子，选择的水平维度的天线端口的分组数量
Figure PCTCN2016070908-appb-000005
可以但不仅限于通过如下公式3确定，选择的垂直维度的天线端口的分组数量
Figure PCTCN2016070908-appb-000006
可以但不仅限于通过如下公式4确定：If it is a single-polarized antenna oscillator, the number of packets of the antenna port of the selected horizontal dimension
Figure PCTCN2016070908-appb-000005
The number of packets of the antenna port of the selected vertical dimension may be determined by, but not limited to, the following formula 3.
Figure PCTCN2016070908-appb-000006
It can be, but is not limited to, determined by the following formula 4:
Figure PCTCN2016070908-appb-000007
  公式3
Figure PCTCN2016070908-appb-000007
 Formula 3
Figure PCTCN2016070908-appb-000008
  公式4
Figure PCTCN2016070908-appb-000008
 Formula 4
然后确定各组天线端口中包括的天线端口数量。Then determine the number of antenna ports included in each group of antenna ports.
如果是双极化天线振子，可以按照如下公式5和公式7确定水平维度的 各组天线端口中包括的天线端口数量，按照如下公式6和公式8确定垂直维度的各组天线端口中包括的天线端口数量：If it is a dual-polarized antenna oscillator, the horizontal dimension can be determined according to Equation 5 and Equation 7 below. The number of antenna ports included in each group of antenna ports determines the number of antenna ports included in each group of antenna ports in the vertical dimension according to Equation 6 and Equation 8 below:
Figure PCTCN2016070908-appb-000009
  公式5
Figure PCTCN2016070908-appb-000009
 Formula 5
Figure PCTCN2016070908-appb-000010
  公式6
Figure PCTCN2016070908-appb-000010
 Formula 6
Figure PCTCN2016070908-appb-000011
  公式7
Figure PCTCN2016070908-appb-000011
 Formula 7
Figure PCTCN2016070908-appb-000012
  公式8
Figure PCTCN2016070908-appb-000012
 Formula 8
其中，
Figure PCTCN2016070908-appb-000013
表示第n组天线端口，
Figure PCTCN2016070908-appb-000014
为水平维度的第n组天线端口包括的天线振子列数，
Figure PCTCN2016070908-appb-000015
为水平维度的第n组天线端口包括的天线端口数量。among them,
Figure PCTCN2016070908-appb-000013
Indicates the nth antenna port,
Figure PCTCN2016070908-appb-000014
The number of antenna elements included in the nth antenna port of the horizontal dimension,
Figure PCTCN2016070908-appb-000015
The number of antenna ports included in the nth group of antenna ports in the horizontal dimension.
其中，
Figure PCTCN2016070908-appb-000016
为垂直维度的第n组天线端口包括的天线振子行数，
Figure PCTCN2016070908-appb-000017
为垂直维度的第n组天线端口包括的天线端口数量。among them,
Figure PCTCN2016070908-appb-000016
The number of antenna elements included in the nth antenna port of the vertical dimension,
Figure PCTCN2016070908-appb-000017
The number of antenna ports included in the nth group of antenna ports in the vertical dimension.
如果是单极化天线振子，可以按照如下公式9和公式11确定水平维度的各组天线端口中包括的天线端口数量，按照如下公式10和公式12确定垂直维度的各组天线端口中包括的天线端口数量：If it is a single-polarized antenna oscillator, the number of antenna ports included in each group of antenna ports in the horizontal dimension can be determined according to the following formula 9 and formula 11, and the antennas included in each group of antenna ports of the vertical dimension are determined according to the following formulas 10 and 12; Number of ports:
Figure PCTCN2016070908-appb-000018
  公式9
Figure PCTCN2016070908-appb-000018
 Formula 9
Figure PCTCN2016070908-appb-000019
  公式10
Figure PCTCN2016070908-appb-000019
 Formula 10
Figure PCTCN2016070908-appb-000020
  公式11
Figure PCTCN2016070908-appb-000020
 Formula 11
Figure PCTCN2016070908-appb-000021
  公式12
Figure PCTCN2016070908-appb-000021
Formula 12
还要根据水平维度天线端口分组个数
Figure PCTCN2016070908-appb-000022
确定水平维度每组天线端口的初始行编号
Figure PCTCN2016070908-appb-000023
根据垂直维度天线端口分组个数
Figure PCTCN2016070908-appb-000024
确定垂直维度每组天线端口的初始列编号
Figure PCTCN2016070908-appb-000025
Also according to the number of horizontal dimension antenna port grouping
Figure PCTCN2016070908-appb-000022
Determine the initial line number of each set of antenna ports in the horizontal dimension
Figure PCTCN2016070908-appb-000023
Number of groups based on vertical dimension antenna ports
Figure PCTCN2016070908-appb-000024
Determine the initial column number for each set of antenna ports in the vertical dimension
Figure PCTCN2016070908-appb-000025
如果Npol＝2，则表明是双极化天线振子，其编号方法如下：If N pol = 2, it indicates a dual-polarized antenna oscillator, and its numbering method is as follows:
Figure PCTCN2016070908-appb-000026
  公式13
Figure PCTCN2016070908-appb-000026
 Formula 13
Figure PCTCN2016070908-appb-000027
  公式14
Figure PCTCN2016070908-appb-000027
 Formula 14
如果Npol1，则表明是单极化天线振子，其编号方法如下：If N pol 1, it means that it is a single-polarized antenna oscillator, and its numbering method is as follows:
Figure PCTCN2016070908-appb-000028
  公式15
Figure PCTCN2016070908-appb-000028
 Formula 15
Figure PCTCN2016070908-appb-000029
  公式16
Figure PCTCN2016070908-appb-000029
 Formula 16
对于Nrow＝10，Ncol＝8的双极化天线阵列，按照上述可选地分组方式进行分组的结果如图2所示。对于Nrow＝10，Ncol＝16的单极化天线阵列，按照上述可选地分组方式进行分组的结果如图3所示。For a dual-polarized antenna array with N row = 10 and N col = 8, the results of grouping according to the above-described optional grouping are shown in FIG. 2. For a single-polarized antenna array with N row = 10 and N col = 16, the results of grouping according to the above-described optional grouping are shown in FIG.
应当指出的是，如果选择水平维度的两行甚至更多行天线端口，其具体分组方式可以参照上述可选地分组方式，只是相同列且极化相同的天线端口要在同一组。如果选择垂直维度的两行甚至更多行天线端口，其具体分组方式可以参照上述可选地分组方式，只是相同行天线端口要在同一组。It should be noted that if two or more rows of antenna ports of the horizontal dimension are selected, the specific grouping manner may refer to the above-mentioned optional grouping manner, except that the antenna ports of the same column and having the same polarization are in the same group. If two or more rows of antenna ports of the vertical dimension are selected, the specific grouping manner may refer to the above optional grouping manner, except that the same row antenna ports are to be in the same group.
基于上述可选地分组方式实施例，相应的，步骤110的优选实现方式可以是：基站为UE配置一个水平维度的CSI进程及其相应的水平维度CSI-RS资源，和/或一个垂直维度的CSI进程及其相应的垂直维度CSI-RS资源。每一个CSI-RS资源可以有各自独立的子帧周期和偏移，也可以为两个CSI-RS资源配置相同的子帧周期和偏移。为水平维度
Figure PCTCN2016070908-appb-000030
组天线端口上的CSI-RS配置水平维度的组内偏移，则水平维度的子帧周期为
Figure PCTCN2016070908-appb-000031
个水平维度的组内偏移。为垂直维度
Figure PCTCN2016070908-appb-000032
组天线端口上的CSI-RS配置垂直维度组内偏移，则垂直维度的子帧周期为
Figure PCTCN2016070908-appb-000033
个垂直维度的组内偏移。在水平维度每个组内偏移中采用相同CSI-RS资源，随着水平维度组内偏移变化，水平维度天维端口组内的天线端口数
Figure PCTCN2016070908-appb-000034
水平维度每组天线端口的初始行编号
Figure PCTCN2016070908-appb-000035
也发生相应的变化。即在水平维度的每次组内偏移时，水平维度CSI-RS的各个端口的导频信号从水平维度的每个组内的所有天线端口上发出。在垂直维度每个组内偏移中采用相同CSI-RS资源，随着垂直维度组内偏移变化，垂直维度天线端口组内的天线端口数
Figure PCTCN2016070908-appb-000036
垂直维度每组天线端口的初始行编号
Figure PCTCN2016070908-appb-000037
也发生相应的变化。即在垂直维度的每次组内偏移时，垂直维度CSI-RS的各个端口的导频信号从垂直维度的每个组内的所有天线端口上发出。The preferred implementation manner of the step 110 may be: the base station configures a horizontal dimension CSI process and its corresponding horizontal dimension CSI-RS resource, and/or a vertical dimension for the UE. CSI process and its corresponding vertical dimension CSI-RS resources. Each CSI-RS resource may have its own independent subframe period and offset, and may also configure the same subframe period and offset for two CSI-RS resources. Horizontal dimension
Figure PCTCN2016070908-appb-000030
The CSI-RS on the group antenna port configures the intra-group offset of the horizontal dimension, and the sub-frame period of the horizontal dimension is
Figure PCTCN2016070908-appb-000031
Intra-group offset of horizontal dimensions. Vertical dimension
Figure PCTCN2016070908-appb-000032
The CSI-RS on the group antenna port configures the offset within the vertical dimension group, and the subframe period of the vertical dimension is
Figure PCTCN2016070908-appb-000033
Intra-group offset of vertical dimensions. The same CSI-RS resource is used in each intra-group offset in the horizontal dimension. The number of antenna ports in the horizontal dimension port group is changed as the offset within the horizontal dimension group changes.
Figure PCTCN2016070908-appb-000034
The initial line number of each set of antenna ports in the horizontal dimension
Figure PCTCN2016070908-appb-000035
Corresponding changes have also taken place. That is, in each intra-group offset of the horizontal dimension, the pilot signals of the respective ports of the horizontal dimension CSI-RS are emitted from all antenna ports in each group of the horizontal dimension. The same CSI-RS resource is used in each group offset in the vertical dimension, and the number of antenna ports in the vertical dimension antenna port group increases as the offset within the vertical dimension group changes.
Figure PCTCN2016070908-appb-000036
Initial line number of each set of antenna ports in the vertical dimension
Figure PCTCN2016070908-appb-000037
Corresponding changes have also taken place. That is, in each intra-group offset of the vertical dimension, the pilot signals of the respective ports of the vertical dimension CSI-RS are emitted from all antenna ports in each group of the vertical dimension.
如果Npol＝2，则表明是双极化天线振子，其在水平维度和垂直维度的CSI 进程和CSI-RS资源分组配置方案如图4所示。If N pol = 2, it indicates that it is a dual-polarized antenna oscillator, and its CSI process and CSI-RS resource grouping scheme in horizontal and vertical dimensions are as shown in Fig. 4.
UE侧进行信道状态信息反馈的实现方式如图5所示，具体包括如下操作：As shown in FIG. 5, the implementation of the channel state information feedback on the UE side includes the following operations:
步骤500、接收水平维度下行参考信号，并根据所述水平维度下行参考信号确定水平维度的测量信道矩阵；和/或，接收垂直维度下行参考信号，并根据所述垂直维度下行参考信号确定垂直维度的测量信道矩阵。Step 500: Receive a horizontal dimension downlink reference signal, and determine a measurement channel matrix of a horizontal dimension according to the horizontal dimension downlink reference signal; and/or, receive a vertical dimension downlink reference signal, and determine a vertical dimension according to the vertical dimension downlink reference signal. Measuring channel matrix.
其中，如图6所示，接收水平维度下行参考信号，并根据所述水平维度下行参考信号确定水平维度的测量信道矩阵，包括：As shown in FIG. 6, the horizontal reference downlink reference signal is received, and the measurement channel matrix of the horizontal dimension is determined according to the horizontal dimension downlink reference signal, including:
步骤5001a、在基站配置的水平维度测量周期内的各个偏移量指示的子帧上分别接收水平维度下行参考信号； Step 5001a: Receive a horizontal dimension downlink reference signal on each subframe indicated by each offset in a horizontal dimension measurement period configured by the base station;
步骤5002a、根据每个所述子帧上接收到的水平维度下行参考信号分别获取每一个水平维度组信道矩阵； Step 5002a: Obtain, according to each of the horizontal dimension downlink reference signals received on each of the subframes, a channel matrix of each horizontal dimension group;
步骤5003a、根据各个水平维度组信道矩阵，确定水平维度的测量信道矩阵； Step 5003a: Determine a measurement channel matrix of a horizontal dimension according to each horizontal dimension group channel matrix;
和/或，如图7所示，接收垂直维度下行参考信号，并根据所述垂直维度下行参考信号确定垂直维度的测量信道矩阵，包括：And/or, as shown in FIG. 7, receiving a vertical dimension downlink reference signal, and determining a measurement channel matrix of a vertical dimension according to the vertical dimension downlink reference signal, including:
步骤5001b、在基站配置的垂直维度测量周期内的各个偏移量指示的子帧上分别接收垂直维度下行参考信号；Step 5001b: Receive vertical dimension downlink reference signals respectively on subframes indicated by respective offsets in a vertical dimension measurement period configured by the base station;
步骤5002b、根据每个所述子帧上接收到的垂直维度下行参考信号分别获取每一个垂直维度组信道矩阵； Step 5002b: Acquire each vertical dimension group channel matrix according to the vertical dimension downlink reference signals received on each of the subframes.
步骤5003b、根据各个垂直维度组信道矩阵，确定垂直维度的测量信道矩阵。 Step 5003b: Determine a measurement channel matrix of a vertical dimension according to each vertical dimension group channel matrix.
其中，在水平维度测量周期内的每个偏移量指示的子帧上接收到的水平维度下行参考信号分别对应水平维度的一组天线端口，水平维度的各组天线端口是所述基站对水平维度的至少一行天线端口分组确定的；在垂直维度测量周期内的每个偏移量指示的子帧上分别接收的垂直维度下行参考信号分别对应垂直维度的一组天线端口，垂直维度的各组天线端口是所述基站对垂直维度的至少一列天线端口分组确定的。The horizontal dimension downlink reference signals received on the subframe indicated by each offset in the horizontal dimension measurement period respectively correspond to a group of antenna ports in the horizontal dimension, and each group of antenna ports in the horizontal dimension is the base station pair level. The at least one row of antenna port groups of the dimension are determined; the vertical dimension downlink reference signals respectively received on the subframe indicated by each offset in the vertical dimension measurement period respectively correspond to a group of antenna ports of the vertical dimension, and groups of vertical dimensions The antenna port is determined by the base station grouping at least one column of antenna ports of a vertical dimension.
步骤510、根据水平维度的测量信道矩阵和垂直维度的测量信道矩阵，确定三维空间信道矩阵； Step 510: Determine a three-dimensional spatial channel matrix according to a measurement channel matrix of a horizontal dimension and a measurement channel matrix of a vertical dimension.
步骤520、根据三维空间信道矩阵，确定信道状态信息，并将确定的信道状态信息反馈给所述基站。Step 520: Determine channel state information according to the three-dimensional spatial channel matrix, and feed back the determined channel state information to the base station.
本公开实施例提供的技术方案，基站分别在水平维度和垂直维度上对天线端口进行分组，UE分别在水平维度的各组天线端口接收水平维度下行参考信号，在垂直维度的各组天线端口接收垂直维度下行参考信号。用户设备根据水平维度和/或垂直维度接收到的各组天线端口对应的下行参考信号，得到水平维度和/或垂直维度的测量信道矩阵，进而进行信道状态信息的反馈，解决了大规模天线阵列场景下，信道状态信息反馈的问题。当每组天线端口数不超过现有标准支持的下行参考信号端口数时，可以利用现有的CSI-RS资源配置进行信道状态信息的反馈。应当指出的是，本公开实施例提供的方案同样适用于每组天线端口数超过现有标准支持的下行参考信号端口数的情形。在该情形下，需要配置新的参考信号资源，以支持信道状态信息的反馈。According to the technical solution provided by the embodiment of the present disclosure, the base station groups the antenna ports in the horizontal dimension and the vertical dimension respectively, and the UE receives the horizontal dimension downlink reference signals in each group of antenna ports in the horizontal dimension, and receives the downlink reference signals in the vertical dimension of each group of antenna ports. Vertical dimension downlink reference signal. The user equipment obtains the measurement channel matrix of the horizontal dimension and/or the vertical dimension according to the downlink reference signal corresponding to each group of antenna ports received in the horizontal dimension and/or the vertical dimension, and further performs feedback of the channel state information, thereby solving the large-scale antenna array. The problem of channel state information feedback in the scenario. When the number of antenna ports in each group does not exceed the number of downlink reference signal ports supported by the existing standard, the channel state information feedback can be performed by using the existing CSI-RS resource configuration. It should be noted that the solution provided by the embodiment of the present disclosure is also applicable to the case where the number of antenna ports per group exceeds the number of downlink reference signal ports supported by the existing standard. In this case, new reference signal resources need to be configured to support feedback of channel state information.
可选地，如果水平维度的天线端口分组，水平维度的每组天线端口与相邻的水平维度的每组天线端口之间均有一个重复测量的天线端口。相应的，根据各个水平维度组信道矩阵，确定水平维度的测量信道矩阵包括：对各个水平维度组信道矩阵进行修正；根据修正后的各个水平维度组信道矩阵，确定水平维度的测量信道矩阵。如果垂直维度的天线端口分组，垂直维度的每组天线端口与相邻的垂直维度的每组天线端口之间均有一个重复测量的天线端口。相应的，根据各个垂直维度组信道矩阵，确定垂直维度的测量信道矩阵包括：对各个垂直维度组信道矩阵进行修正；根据修正后的各个垂直维度组信道矩阵，确定垂直维度的测量信道矩阵。Optionally, if the antenna ports of the horizontal dimension are grouped, there is one repeatedly measured antenna port between each set of antenna ports in the horizontal dimension and each set of antenna ports in the adjacent horizontal dimension. Correspondingly, according to each horizontal dimension group channel matrix, determining the measurement channel matrix of the horizontal dimension comprises: correcting each horizontal dimension group channel matrix; and determining a horizontal channel measurement channel matrix according to the modified horizontal dimension group channel matrix. If the antenna ports of the vertical dimension are grouped, there is a duplicated antenna port between each set of antenna ports in the vertical dimension and each set of antenna ports in the adjacent vertical dimension. Correspondingly, determining the measurement channel matrix of the vertical dimension according to each vertical dimension group channel matrix comprises: correcting each vertical dimension group channel matrix; and determining a vertical dimension measurement channel matrix according to the modified vertical dimension group channel matrix.
可选地，对各个水平维度组信道矩阵进行修正，包括：分别根据水平维度的每组天线端口的所述重复测量的天线端口所测量得到的天线端口信道信息，对各个水平维度组信道矩阵进行修正。Optionally, the channel matrix of each horizontal dimension group is modified, including: performing antenna channel channel information measured by the repeatedly measured antenna ports of each group of antenna ports in a horizontal dimension, and performing channel matrix of each horizontal dimension group respectively. Corrected.
可选地，对各个垂直维度组信道矩阵进行修正，包括：分别根据垂直维度的每组天线端口的所述重复测量的天线端口所测量得到的天线端口信道信息，对各个垂直维度组信道矩阵进行修正。Optionally, the correction of each vertical dimension group channel matrix includes: performing antenna channel channel information measured by the repeatedly measured antenna ports of each group of antenna ports of the vertical dimension, respectively, for each vertical dimension group channel matrix Corrected.
仍以上述基站的天线阵列为例，UE在水平维度的每个子帧周期内，通过测量水平维度
Figure PCTCN2016070908-appb-000038
个组内的配置的CSI-RS，得到相应的水平维度
Figure PCTCN2016070908-appb-000039
个组内 每组天线端口的组信道矩阵
Figure PCTCN2016070908-appb-000040
其中，第
Figure PCTCN2016070908-appb-000041
组的信道矩阵为
Figure PCTCN2016070908-appb-000042
其中，Nr是UE接收天线的个数，Npol是基站天线的极化个数。UE在垂直维度的每个子帧周期内，通过测量垂直维度
Figure PCTCN2016070908-appb-000043
个组内的配置的CSI-RS，得到相应的垂直维度
Figure PCTCN2016070908-appb-000044
个组内每组天线端口的组信道
Figure PCTCN2016070908-appb-000045
其中，第
Figure PCTCN2016070908-appb-000046
组的信道矩阵为
Figure PCTCN2016070908-appb-000047
其中，Nr是UE接收天线的个数。Taking the antenna array of the above base station as an example, the UE measures the horizontal dimension in each subframe period of the horizontal dimension.
Figure PCTCN2016070908-appb-000038
The configured CSI-RS within the group gets the corresponding horizontal dimension
Figure PCTCN2016070908-appb-000039
Group channel matrix for each group of antenna ports within a group
Figure PCTCN2016070908-appb-000040
Among them, the first
Figure PCTCN2016070908-appb-000041
The channel matrix of the group is
Figure PCTCN2016070908-appb-000042
Where N r is the number of UE receiving antennas, and N pol is the number of polarizations of the base station antenna. The UE measures the vertical dimension in each subframe period of the vertical dimension.
Figure PCTCN2016070908-appb-000043
The configured CSI-RS within the group gets the corresponding vertical dimension
Figure PCTCN2016070908-appb-000044
Group channel for each group of antenna ports in a group
Figure PCTCN2016070908-appb-000045
Among them, the first
Figure PCTCN2016070908-appb-000046
The channel matrix of the group is
Figure PCTCN2016070908-appb-000047
Where N r is the number of UE receiving antennas.
通过组与组之间重复测量的天线端口信道对分组测量的天线端口信道进行修正。得到水平维度
Figure PCTCN2016070908-appb-000048
个组内每个天线端口的组信道的修正值
Figure PCTCN2016070908-appb-000049
其中，第
Figure PCTCN2016070908-appb-000050
组的信道息的修正值为
Figure PCTCN2016070908-appb-000051
得到垂直维度
Figure PCTCN2016070908-appb-000052
个组内每个天线端口的组信道的修正值
Figure PCTCN2016070908-appb-000053
其中，第
Figure PCTCN2016070908-appb-000054
组的信道的修正值为
Figure PCTCN2016070908-appb-000055
其详细修正方法如下：The antenna port channel of the packet measurement is corrected by the antenna port channel that is repeatedly measured between the groups. Get the horizontal dimension
Figure PCTCN2016070908-appb-000048
Correction value of group channel for each antenna port in each group
Figure PCTCN2016070908-appb-000049
Among them, the first
Figure PCTCN2016070908-appb-000050
Corrected value of the channel information of the group
Figure PCTCN2016070908-appb-000051
Get vertical dimension
Figure PCTCN2016070908-appb-000052
Correction value of group channel for each antenna port in each group
Figure PCTCN2016070908-appb-000053
Among them, the first
Figure PCTCN2016070908-appb-000054
The corrected value of the group's channel
Figure PCTCN2016070908-appb-000055
The detailed correction method is as follows:
计算
Figure PCTCN2016070908-appb-000056
组的每一组的修正因子
Figure PCTCN2016070908-appb-000057
其
Figure PCTCN2016070908-appb-000058
计算公式如下：Calculation
Figure PCTCN2016070908-appb-000056
Correction factor for each group of the group
Figure PCTCN2016070908-appb-000057
its
Figure PCTCN2016070908-appb-000058
Calculated as follows:
Figure PCTCN2016070908-appb-000059
  公式17
Figure PCTCN2016070908-appb-000059
 Formula 17
其中，nr表示UE接收天线Nr中的第nr个；npol表示基站的Npol个极化中的第npol个极化。
Figure PCTCN2016070908-appb-000060
表示水平维度的第
Figure PCTCN2016070908-appb-000061
天线端口组的
Figure PCTCN2016070908-appb-000062
列端口。Wherein, n r N r receive antennas UE represents the number of n r; n-pol N represents a base station pol pol polarization of n-th polarization.
Figure PCTCN2016070908-appb-000060
Representing the horizontal dimension
Figure PCTCN2016070908-appb-000061
Antenna port group
Figure PCTCN2016070908-appb-000062
Column port.
计算
Figure PCTCN2016070908-appb-000063
组的每一组的修正因子
Figure PCTCN2016070908-appb-000064
其
Figure PCTCN2016070908-appb-000065
详细计算公式如下：Calculation
Figure PCTCN2016070908-appb-000063
Correction factor for each group of the group
Figure PCTCN2016070908-appb-000064
its
Figure PCTCN2016070908-appb-000065
The detailed calculation formula is as follows:
Figure PCTCN2016070908-appb-000066
  公式18
Figure PCTCN2016070908-appb-000066
 Formula 18
通过修正因子
Figure PCTCN2016070908-appb-000067
对水平组信道
Figure PCTCN2016070908-appb-000068
进行修正，得到
Figure PCTCN2016070908-appb-000069
其中
Figure PCTCN2016070908-appb-000070
详细计算公式如下：Correction factor
Figure PCTCN2016070908-appb-000067
Horizontal group channel
Figure PCTCN2016070908-appb-000068
Make corrections and get
Figure PCTCN2016070908-appb-000069
among them
Figure PCTCN2016070908-appb-000070
The detailed calculation formula is as follows:
Figure PCTCN2016070908-appb-000071
  公式19
Figure PCTCN2016070908-appb-000071
 Formula 19
其中，
Figure PCTCN2016070908-appb-000072
是第
Figure PCTCN2016070908-appb-000073
组内的天线端口的组内编号。among them,
Figure PCTCN2016070908-appb-000072
Is the first
Figure PCTCN2016070908-appb-000073
The intra-group number of the antenna port within the group.
通过修正因子
Figure PCTCN2016070908-appb-000074
对垂直组信道
Figure PCTCN2016070908-appb-000075
进行修正，得到
Figure PCTCN2016070908-appb-000076
其中
Figure PCTCN2016070908-appb-000077
详细计算公式如下：Correction factor
Figure PCTCN2016070908-appb-000074
Vertical group channel
Figure PCTCN2016070908-appb-000075
Make corrections and get
Figure PCTCN2016070908-appb-000076
among them
Figure PCTCN2016070908-appb-000077
The detailed calculation formula is as follows:
Figure PCTCN2016070908-appb-000078
其中，
Figure PCTCN2016070908-appb-000079
  公式20
Figure PCTCN2016070908-appb-000078
 among them,
Figure PCTCN2016070908-appb-000079
 Formula 20
从修正后的水平维度的组信道
Figure PCTCN2016070908-appb-000080
去掉重复测量的天线端口 的信道，得到统一的水平维度的Npol×Ncol个天线端口端口的测量信道
Figure PCTCN2016070908-appb-000081
从修正后的垂直维度的组信道
Figure PCTCN2016070908-appb-000082
去掉重复测量的天线端口的信道，得到统一的垂直维度的Nrow个天线端口端口的测量信道
Figure PCTCN2016070908-appb-000083
其详细计算方法如下：Group channel from the corrected horizontal dimension
Figure PCTCN2016070908-appb-000080
The channel of the repeatedly measured antenna port is removed, and a measurement channel of N pol × N col antenna port ports of a uniform horizontal dimension is obtained.
Figure PCTCN2016070908-appb-000081
Group channel from the corrected vertical dimension
Figure PCTCN2016070908-appb-000082
The channel of the repeatedly measured antenna port is removed, and a measurement channel of N row antenna port ports of a uniform vertical dimension is obtained.
Figure PCTCN2016070908-appb-000083
The detailed calculation method is as follows:
计算水平维度的每组选取天线端口的列数
Figure PCTCN2016070908-appb-000084
其计算公式如下：Calculate the number of columns in each set of antenna ports for the horizontal dimension
Figure PCTCN2016070908-appb-000084
Its calculation formula is as follows:
Figure PCTCN2016070908-appb-000085
  公式21
Figure PCTCN2016070908-appb-000085
 Formula 21
计算水平维度的测量信道
Figure PCTCN2016070908-appb-000086
其Hh(nr，npol，ncol)计算如下：Calculate the measurement channel of the horizontal dimension
Figure PCTCN2016070908-appb-000086
Its H h (n r , n pol , n col ) is calculated as follows:
Figure PCTCN2016070908-appb-000087
  公式22
Figure PCTCN2016070908-appb-000087
 Formula 22
其中，among them,
Figure PCTCN2016070908-appb-000088
  公式23
Figure PCTCN2016070908-appb-000088
 Formula 23
计算垂直维度的每组选取天线端口的行数
Figure PCTCN2016070908-appb-000089
其计算公式如下：Calculate the number of rows of each selected antenna port for each vertical dimension
Figure PCTCN2016070908-appb-000089
Its calculation formula is as follows:
Figure PCTCN2016070908-appb-000090
  公式24
Figure PCTCN2016070908-appb-000090
 Formula 24
计算垂直维度的测量信道
Figure PCTCN2016070908-appb-000091
其Hv(nr，nrow)计算如下：Calculate the measurement channel of the vertical dimension
Figure PCTCN2016070908-appb-000091
Its H v (n r , n row ) is calculated as follows:
Figure PCTCN2016070908-appb-000092
  公式25
Figure PCTCN2016070908-appb-000092
 Formula 25
其中，among them,
Figure PCTCN2016070908-appb-000093
  公式26
Figure PCTCN2016070908-appb-000093
 Formula 26
将水平维度的测量信道
Figure PCTCN2016070908-appb-000094
按极化来排列，形成水平维度的测量信道
Figure PCTCN2016070908-appb-000095
其中，
Figure PCTCN2016070908-appb-000096
并且其中
Figure PCTCN2016070908-appb-000097
且nh＝1，…，Nh，nh＝(npol-1)Ncol+ncol；对于垂直维度的测量信道
Figure PCTCN2016070908-appb-000098
可以得到垂直维度的测量信道
Figure PCTCN2016070908-appb-000099
其中，Nv＝Nrow，并且其中
Figure PCTCN2016070908-appb-000100
且nh＝1，…，Nv，nv＝nrow。Measurement channel of horizontal dimension
Figure PCTCN2016070908-appb-000094
Arranged by polarization to form a measurement channel of horizontal dimension
Figure PCTCN2016070908-appb-000095
 among them,
Figure PCTCN2016070908-appb-000096
 And where
Figure PCTCN2016070908-appb-000097
 And n h =1,...,N h ,n h =(n pol -1)N col +n col ; measurement channel for vertical dimension
Figure PCTCN2016070908-appb-000098
Can get the measurement channel of vertical dimension
Figure PCTCN2016070908-appb-000099
Where N v =N row and where
Figure PCTCN2016070908-appb-000100
And n h =1,...,N v ,n v =n row .
根据垂直维度的测量信道
Figure PCTCN2016070908-appb-000101
和水平维度的测量信道
Figure PCTCN2016070908-appb-000102
构造成为三维(3D)的空间信道
Figure PCTCN2016070908-appb-000103
其中H3D(nr，：)，表示第nr个接收天线所接收到基站天线的3D空间信道。详细计算方法如下：Measurement channel based on vertical dimension
Figure PCTCN2016070908-appb-000101
And horizontal dimension measurement channel
Figure PCTCN2016070908-appb-000102
Constructed into a three-dimensional (3D) spatial channel
Figure PCTCN2016070908-appb-000103
Where H 3D (n r ,:) represents the 3D spatial channel of the base station antenna received by the n rth receiving antenna. The detailed calculation method is as follows:
Figure PCTCN2016070908-appb-000104
  公式27
Figure PCTCN2016070908-appb-000104
 Formula 27
或者or
Figure PCTCN2016070908-appb-000105
  公式28
Figure PCTCN2016070908-appb-000105
 Formula 28
UE根据计算得到的三维(3D)空间信道
Figure PCTCN2016070908-appb-000106
计算CSI信息，这里的CSI信息包括PMI信息，RI信息，CQI信息。终端反馈PMI信息可以是水平维度PMI信息和垂直维度的PMI信息，也可以三维PMI信息；终端反馈RI信息，可以是只针对水平维度的PMI信息的RI信息，也可以是三维PMI的RI信息。终端反馈的CQI信息，是基于三维(3D)空间信道
Figure PCTCN2016070908-appb-000107
和三维预编码矩阵W3D计算得到的。The three-dimensional (3D) spatial channel obtained by the UE according to the calculation
Figure PCTCN2016070908-appb-000106
The CSI information is calculated, where the CSI information includes PMI information, RI information, and CQI information. The terminal feedback PMI information may be horizontal dimension PMI information and vertical dimension PMI information, or may be three-dimensional PMI information; the terminal feedback RI information may be RI information only for PMI information of a horizontal dimension, or may be RI information of a three-dimensional PMI. The CQI information fed back by the terminal is based on a three-dimensional (3D) spatial channel.
Figure PCTCN2016070908-appb-000107
And 3D precoding matrix W 3D calculated.
假设基站采用水平维度PMI信息和垂直维度的PMI信息方式，则其PMI，RI和CQI计算方式如下：Assuming that the base station adopts the horizontal dimension PMI information and the vertical dimension PMI information mode, its PMI, RI and CQI are calculated as follows:
终端从
Figure PCTCN2016070908-appb-000108
选取相应一列水平维度信道
Figure PCTCN2016070908-appb-000109
通过计算得到垂直维度的PMI信息。Terminal from
Figure PCTCN2016070908-appb-000108
Select the corresponding column of horizontal dimension channels
Figure PCTCN2016070908-appb-000109
The PMI information of the vertical dimension is obtained by calculation.
终端将垂直维度的PMI信息所对应垂直维度预编码矩阵
Figure PCTCN2016070908-appb-000110
将Wv与H3D重新构造成水平维度等效的信道
Figure PCTCN2016070908-appb-000111
The terminal will vertically dimension the precoding matrix corresponding to the PMI information of the vertical dimension
Figure PCTCN2016070908-appb-000110
Reconstruct W v and H 3D to a horizontally equivalent channel
Figure PCTCN2016070908-appb-000111
通过水平维度等效的信道
Figure PCTCN2016070908-appb-000112
计算水平维度的RI和水平维度CQI。Equivalent channel through horizontal dimension
Figure PCTCN2016070908-appb-000112
Calculate the RI of the horizontal dimension and the horizontal dimension CQI.
假设基站采用三维PMI信息方式，则其PMI，RI和CQI计算方式如下：Assuming that the base station adopts the three-dimensional PMI information mode, its PMI, RI and CQI are calculated as follows:
终端用
Figure PCTCN2016070908-appb-000113
计算得到三维PMI信息。Terminal
Figure PCTCN2016070908-appb-000113
Calculate the 3D PMI information.
终端用
Figure PCTCN2016070908-appb-000114
计算得到三维的RI信息。Terminal
Figure PCTCN2016070908-appb-000114
The three-dimensional RI information is calculated.
终端用
Figure PCTCN2016070908-appb-000115
计算得到三维的CQI信息。Terminal
Figure PCTCN2016070908-appb-000115
Calculate the three-dimensional CQI information.
基站接收终端反馈的CSI信息，进行链路自适应参数的计算。The base station receives the CSI information fed back by the terminal, and performs calculation of the link adaptation parameter.
假设终端反馈的垂直维度PMI信息对应的预编码矩阵为
Figure PCTCN2016070908-appb-000116
终端反馈的水平维度的PMI和水平维度RI信息对应的预编码矩阵为
Figure PCTCN2016070908-appb-000117
其中Rh为水平维度预编码矩阵的列数(秩)，由RI信息确定，则基站进行数据传输的针对整个天线阵列的预编码矩阵为：
Figure PCTCN2016070908-appb-000118
或者，
Figure PCTCN2016070908-appb-000119
其中
Figure PCTCN2016070908-appb-000120
表示矩阵的Kronecker乘积。It is assumed that the precoding matrix corresponding to the vertical dimension PMI information fed back by the terminal is
Figure PCTCN2016070908-appb-000116
The precoding matrix corresponding to the horizontal dimension PMI and the horizontal dimension RI information fed back by the terminal is
Figure PCTCN2016070908-appb-000117
Where R h is the number of columns (rank) of the horizontal dimension precoding matrix, determined by the RI information, and the precoding matrix for the entire antenna array for data transmission by the base station is:
Figure PCTCN2016070908-appb-000118
or,
Figure PCTCN2016070908-appb-000119
among them
Figure PCTCN2016070908-appb-000120
Represents the Kronecker product of the matrix.
假设终端反馈的三维PMI信息对应的预编码矩阵为
Figure PCTCN2016070908-appb-000121
其中R为三维空间方向预编码矩阵的列数(秩)，由RI信息确定，则基站进行数据传输的针对整个天线阵列的预编码矩阵为：W3D。It is assumed that the precoding matrix corresponding to the three-dimensional PMI information fed back by the terminal is
Figure PCTCN2016070908-appb-000121
Where R is the number of columns (rank) of the three-dimensional spatial direction precoding matrix, which is determined by the RI information, and the precoding matrix for the entire antenna array for data transmission by the base station is: W 3D .
数据传输的MCS(编码速率和调制等级)可以依据终端反馈的CQI选择，例如直接由CQI和资源数量映射到MCS等级，或者对终端反馈的CQI调整后再映射到MCS等级。 The MCS (coding rate and modulation level) of the data transmission may be selected according to the CQI fed back by the terminal, for example, directly mapped to the MCS level by the CQI and the number of resources, or adjusted to the MCS level after adjusting the CQI fed back by the terminal.
基于与方法同样的发明构思，本公开实施例还提供一种信道状态信息反馈装置，如图8所示，具体包括：Based on the same inventive concept as the method, the embodiment of the present disclosure further provides a channel state information feedback device, as shown in FIG.
测量信道矩阵确定模块801，用于接收水平维度下行参考信号，并根据所述水平维度下行参考信号确定水平维度的测量信道矩阵；和/或，接收垂直维度下行参考信号，并根据所述垂直维度下行参考信号确定垂直维度的测量信道矩阵；a measurement channel matrix determining module 801, configured to receive a horizontal dimension downlink reference signal, and determine a horizontal channel measurement channel matrix according to the horizontal dimension downlink reference signal; and/or receive a vertical dimension downlink reference signal according to the vertical dimension The downlink reference signal determines a measurement channel matrix of a vertical dimension;
其中，接收水平维度下行参考信号，并根据所述水平维度下行参考信号确定水平维度的测量信道矩阵，包括：在基站配置的水平维度测量周期内的各个偏移量指示的子帧上分别接收水平维度下行参考信号，根据每个所述子帧上接收到的水平维度下行参考信号分别获取每一个水平维度组信道矩阵，并根据各个水平维度组信道矩阵，确定水平维度的测量信道矩阵；和/或接收垂直维度下行参考信号，并根据所述垂直维度下行参考信号确定垂直维度的测量信道矩阵，包括：在基站配置的垂直维度测量周期内的各个偏移量指示的子帧上分别接收垂直维度下行参考信号，根据每个所述子帧上接收到的垂直维度下行参考信号分别获取每一个垂直维度组信道矩阵，并根据各个垂直维度组信道矩阵，确定垂直维度的测量信道矩阵；在相同维度测量周期内的每个所述子帧上接收到的所述维度下行参考信号分别对应所述维度的一组天线端口，所述维度的各组天线端口是所述基站对所述维度的至少一行或列天线端口分组确定的；The receiving the horizontal dimension downlink reference signal, and determining the measurement channel matrix of the horizontal dimension according to the horizontal dimension downlink reference signal, including: receiving the level respectively on the subframe indicated by each offset in the horizontal dimension measurement period configured by the base station a dimension downlink reference signal, which acquires each horizontal dimension group channel matrix according to the horizontal dimension downlink reference signal received on each of the subframes, and determines a measurement channel matrix of a horizontal dimension according to each horizontal dimension group channel matrix; and/ Or receiving a vertical dimension downlink reference signal, and determining a measurement channel matrix of a vertical dimension according to the vertical dimension downlink reference signal, including: receiving vertical dimensions respectively on subframes indicated by respective offsets in a vertical dimension measurement period configured by the base station And determining, by the downlink reference signal, each vertical dimension group channel matrix according to the vertical dimension downlink reference signal received on each of the subframes, and determining a vertical channel measurement channel matrix according to each vertical dimension group channel matrix; Each of the sub-periods within the measurement period The dimensional downlink reference signals received on the frame respectively correspond to a group of antenna ports of the dimension, and each group of antenna ports of the dimension is determined by the base station grouping at least one row or column antenna port of the dimension;
三维空间信道矩阵确定模块802，用于根据水平维度的测量信道矩阵和垂直维度的测量信道矩阵，确定三维空间信道矩阵；The three-dimensional spatial channel matrix determining module 802 is configured to determine a three-dimensional spatial channel matrix according to the measurement channel matrix of the horizontal dimension and the measurement channel matrix of the vertical dimension;
信道状态信息确定及反馈模块803，用于根据三维空间信道矩阵，确定信道状态信息，并将确定的信道状态信息反馈给所述基站。The channel state information determining and feedback module 803 is configured to determine channel state information according to the three-dimensional spatial channel matrix, and feed back the determined channel state information to the base station.
可选地，相同维度的每组天线端口与相邻的所述维度的每组天线端口之间均有一个重复测量的天线端口；根据各个所述维度组信道矩阵，确定所述维度的测量信道矩阵时，测量信道矩阵确定模块用于：Optionally, each set of antenna ports of the same dimension has an antenna port repeatedly measured between each group of antenna ports of the adjacent dimension; determining a measurement channel of the dimension according to each of the dimension group channel matrices In the case of a matrix, the measurement channel matrix determination module is used to:
对各个所述维度组信道矩阵进行修正；Correcting each of the dimensional group channel matrices;
根据修正后的各个所述维度组信道矩阵，确定所述维度的测量信道矩阵。And determining a measurement channel matrix of the dimension according to each of the modified dimension group channel matrices.
可选地，对各个所述维度组信道矩阵进行修正时，测量信道矩阵确定模 块用于：Optionally, when correcting each of the dimensional group channel matrices, measuring a channel matrix determining module The block is used to:
分别根据所述维度的每组天线端口的所述重复测量的天线端口所测量得到天线端口信道信息，对各个所述维度组信道矩阵进行修正，得到修正后的各个所述维度组信道矩阵。The antenna port channel information is measured according to the repeatedly measured antenna ports of each set of antenna ports of the dimension, and each of the dimensional group channel matrices is corrected to obtain a modified each of the dimensional group channel matrices.
可选地，根据修正后的各个所述维度组信道矩阵，确定所述维度的测量信道矩阵时，测量信道矩阵确定模块用于：Optionally, when determining the measurement channel matrix of the dimension according to the modified each of the dimension group channel matrices, the measurement channel matrix determining module is configured to:
从修正后的各个所述维度组信道矩阵去掉所述重复测量的天线端口的信道信息，确定所述维度的测量信道矩阵。The channel information of the repeatedly measured antenna port is removed from the modified each of the dimensional group channel matrices, and the measured channel matrix of the dimension is determined.
基于与方法同样的发明构思，本公开实施例还提供一种UE，其结构如图9所示，具体包括：Based on the same inventive concept as the method, the embodiment of the present disclosure further provides a UE, and the structure thereof is as shown in FIG.
处理器900，用于读取存储器920中的程序，执行下列过程：The processor 900 is configured to read a program in the memory 920 and perform the following process:
接收水平维度下行参考信号，并根据所述水平维度下行参考信号确定水平维度的测量信道矩阵；和/或，接收垂直维度下行参考信号，并根据所述垂直维度下行参考信号确定垂直维度的测量信道矩阵；Receiving a horizontal dimension downlink reference signal, and determining a measurement channel matrix of a horizontal dimension according to the horizontal dimension downlink reference signal; and/or receiving a vertical dimension downlink reference signal, and determining a vertical dimension measurement channel according to the vertical dimension downlink reference signal matrix;
其中，接收水平维度下行参考信号，并根据所述水平维度下行参考信号确定水平维度的测量信道矩阵，包括：在基站配置的水平维度测量周期内的各个偏移量指示的子帧上分别接收水平维度下行参考信号，根据每个所述子帧上接收到的水平维度下行参考信号分别获取每一个水平维度组信道矩阵，并根据各个水平维度组信道矩阵，确定水平维度的测量信道矩阵；和/或接收垂直维度下行参考信号，并根据所述垂直维度下行参考信号确定垂直维度的测量信道矩阵，包括：在基站配置的垂直维度测量周期内的各个偏移量指示的子帧上分别接收垂直维度下行参考信号，根据每个所述子帧上接收到的垂直维度下行参考信号分别获取每一个垂直维度组信道矩阵，并根据各个垂直维度组信道矩阵，确定垂直维度的测量信道矩阵；在相同维度测量周期内的每个所述子帧上接收到的所述维度下行参考信号分别对应所述维度的一组天线端口，所述维度的各组天线端口是所述基站对所述维度的至少一行或列天线端口分组确定的；The receiving the horizontal dimension downlink reference signal, and determining the measurement channel matrix of the horizontal dimension according to the horizontal dimension downlink reference signal, including: receiving the level respectively on the subframe indicated by each offset in the horizontal dimension measurement period configured by the base station a dimension downlink reference signal, which acquires each horizontal dimension group channel matrix according to the horizontal dimension downlink reference signal received on each of the subframes, and determines a measurement channel matrix of a horizontal dimension according to each horizontal dimension group channel matrix; and/ Or receiving a vertical dimension downlink reference signal, and determining a measurement channel matrix of a vertical dimension according to the vertical dimension downlink reference signal, including: receiving vertical dimensions respectively on subframes indicated by respective offsets in a vertical dimension measurement period configured by the base station And determining, by the downlink reference signal, each vertical dimension group channel matrix according to the vertical dimension downlink reference signal received on each of the subframes, and determining a vertical channel measurement channel matrix according to each vertical dimension group channel matrix; Each of the sub-periods within the measurement period The dimensional downlink reference signals received on the frame respectively correspond to a group of antenna ports of the dimension, and each group of antenna ports of the dimension is determined by the base station grouping at least one row or column antenna port of the dimension;
根据水平维度的测量信道矩阵和垂直维度的测量信道矩阵，确定三维空间信道矩阵； Determining a three-dimensional spatial channel matrix according to a measurement channel matrix of a horizontal dimension and a measurement channel matrix of a vertical dimension;
根据三维空间信道矩阵，确定信道状态信息，并将确定的信道状态信息反馈给所述基站。Channel state information is determined according to the three-dimensional spatial channel matrix, and the determined channel state information is fed back to the base station.
收发机910，用于在处理器900的控制下接收和发送数据。The transceiver 910 is configured to receive and transmit data under the control of the processor 900.
其中，在图9中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器900代表的一个或多个处理器和存储器920代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机910可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备，用户接口930还可以是能够外接内接需要设备的接口，连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。In FIG. 9, the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 900 and various circuits of memory represented by memory 920. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. Transceiver 910 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium. For different user equipments, the user interface 930 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
处理器900负责管理总线架构和通常的处理，存储器920可以存储处理器900在执行操作时所使用的数据。The processor 900 is responsible for managing the bus architecture and general processing, and the memory 920 can store data used by the processor 900 in performing operations.
基于与方法同样的发明构思，本公开实施例还提供一种下行参考信号的发送装置，如图10所示，具体包括：Based on the same inventive concept as the method, the embodiment of the present disclosure further provides a device for transmitting a downlink reference signal, as shown in FIG.
天线端口分组模块1001，用于将水平维度的至少一行天线端口进行分组，和/或将垂直维度的至少一列天线端口进行分组；The antenna port grouping module 1001 is configured to group at least one row of antenna ports in a horizontal dimension, and/or group at least one column of antenna ports in a vertical dimension;
参考信号资源分配模块1002，用于为用户设备分配水平维度测量周期，并为用户设备分配垂直维度测量周期；The reference signal resource allocation module 1002 is configured to allocate a horizontal dimension measurement period to the user equipment, and allocate a vertical dimension measurement period to the user equipment;
偏移量分配模块1003，用于为水平维度的各组天线端口上的水平维度下行参考信号分配在水平维度测量周期内的偏移量；和/或，为垂直维度的各组天线端口上的垂直维度下行参考信号分配在垂直维度测量周期内的偏移量；An offset allocation module 1003, configured to allocate an offset in a horizontal dimension measurement period for a horizontal dimension downlink reference signal on each group of antenna ports in a horizontal dimension; and/or, on each group of antenna ports in a vertical dimension The vertical dimension downlink reference signal is assigned an offset in the vertical dimension measurement period;
配置信息发送模块1004，用于将水平维度测量周期和垂直维度测量周期，以及水平维度测量周期内的各个偏移量和/或垂直维度测量周期内的各个偏移量发送给所述用户设备；The configuration information sending module 1004 is configured to send the horizontal dimension measurement period and the vertical dimension measurement period, and the respective offsets in the horizontal dimension measurement period and/or the respective offsets in the vertical dimension measurement period to the user equipment;
水平维度参考信号发送模块1005，用于在水平维度测量周期内发送水平维度下行参考信号；其中，如果为水平维度的各组天线端口上的水平维度下行参考信号分配了在水平维度测量周期内的偏移量，在水平维度测量周期内发送水平维度下行参考信号，包括：在水平维度测量周期内的各个偏移量指 示的子帧上，分别通过水平维度的各组天线端口发送水平维度下行参考信号；The horizontal dimension reference signal sending module 1005 is configured to send the horizontal dimension downlink reference signal in the horizontal dimension measurement period; wherein, if the horizontal dimension downlink reference signal on each group of antenna ports in the horizontal dimension is allocated in the horizontal dimension measurement period Offset, the horizontal dimension downlink reference signal is transmitted during the horizontal dimension measurement period, including: each offset indicator in the horizontal dimension measurement period In the illustrated subframe, the horizontal dimension downlink reference signal is sent through each group of antenna ports in the horizontal dimension;
垂直维度参考信号发送模块1006，用于在垂直维度测量周期内发送垂直维度下行参考信号；其中，如果为垂直维度的各组天线端口上的垂直维度下行参考信号分配了在垂直维度测量周期内的偏移量，在垂直维度测量周期内发送垂直维度下行参考信号，包括：在垂直维度测量周期内的各个偏移量指示的子帧上，分别通过垂直维度的各组天线端口发送垂直维度下行参考信号。The vertical dimension reference signal sending module 1006 is configured to send the vertical dimension downlink reference signal in the vertical dimension measurement period; wherein, if the vertical dimension downlink reference signal on each group of antenna ports in the vertical dimension is allocated in the vertical dimension measurement period The offset, the vertical dimension downlink reference signal is sent in the vertical dimension measurement period, including: sending the vertical dimension downlink reference through each group of antenna ports of the vertical dimension on the subframes indicated by the respective offsets in the vertical dimension measurement period signal.
可选地，水平维度的每组天线端口与相邻的水平维度的每组天线端口之间均有一个重复的天线端口，垂直维度的每组天线端口与相邻的垂直维度的每组天线端口之间均有一个重复的天线端口。Optionally, each set of antenna ports in the horizontal dimension has a repeating antenna port between each set of antenna ports in the adjacent horizontal dimension, each set of antenna ports in the vertical dimension and each set of antenna ports in the adjacent vertical dimension There is a duplicate antenna port between them.
可选地，所述天线端口分组模块1001用于：Optionally, the antenna port grouping module 1001 is configured to:
确定所述水平维度的至少一行天线端口的分组数量；Determining a number of packets of at least one row of antenna ports of the horizontal dimension;
确定水平维度的各组天线端口包括的天线端口数量；Determining the number of antenna ports included in each group of antenna ports in the horizontal dimension;
根据所述水平维度的至少一行天线端口的分组数量和所述水平维度的每组天线端口包括的天线端口数量，将所述水平维度的至少一行天线端口分组，其中，水平维度的每组天线端口在水平维度上连续排布；And grouping at least one row of antenna ports of the horizontal dimension according to a number of packets of at least one row of antenna ports of the horizontal dimension and an number of antenna ports of each group of antenna ports of the horizontal dimension, wherein each group of antenna ports of the horizontal dimension Continually arranged in the horizontal dimension;
和/或，and / or,
确定所述垂直维度的至少一列天线端口的分组数量；Determining a number of packets of at least one column of antenna ports of the vertical dimension;
确定垂直维度的各组天线端口包括的天线端口数量；Determining the number of antenna ports included in each group of antenna ports in the vertical dimension;
根据所述垂直维度的至少一列天线端口的分组数量和所述垂直维度的各组天线端口包括的天线端口数量，将所述垂直维度的至少一列天线端口分组，其中，垂直维度的每组天线端口在垂直维度上连续排布。And grouping at least one column of antenna ports of the vertical dimension according to a number of packets of at least one column of antenna ports of the vertical dimension and an number of antenna ports of each group of antenna ports of the vertical dimension, wherein each group of antenna ports of a vertical dimension Arranged consecutively in the vertical dimension.
基于与方法同样的发明构思，本公开实施例还提供一种基站，其结构如图11所示，具体包括：Based on the same inventive concept as the method, the embodiment of the present disclosure further provides a base station, and the structure thereof is as shown in FIG.
处理器1100，用于读取存储器1120中的程序，执行下列过程：The processor 1100 is configured to read a program in the memory 1120 and perform the following process:
将水平维度的至少一行天线端口进行分组，和/或将垂直维度的至少一列天线端口进行分组；Grouping at least one row of antenna ports of a horizontal dimension, and/or grouping at least one column of antenna ports of a vertical dimension;
为用户设备分配水平维度测量周期，并为用户设备分配垂直维度测量周期；Allocating a horizontal dimension measurement period to the user equipment, and allocating a vertical dimension measurement period to the user equipment;
为水平维度的各组天线端口上的水平维度下行参考信号分配在水平维度 测量周期内的偏移量；和/或，为垂直维度的各组天线端口上的垂直维度下行参考信号分配在垂直维度测量周期内的偏移量；The horizontal dimension downlink reference signals on each set of antenna ports in the horizontal dimension are assigned in the horizontal dimension The offset within the measurement period; and/or the vertical dimension downlink reference signal on each set of antenna ports in the vertical dimension is assigned an offset within the vertical dimension measurement period;
将水平维度测量周期和垂直维度测量周期，以及水平维度测量周期内的各个偏移量和/或垂直维度测量周期内的各个偏移量发送给所述用户设备；Transmitting the horizontal dimension measurement period and the vertical dimension measurement period, and each offset within the horizontal dimension measurement period and/or each offset within the vertical dimension measurement period to the user equipment;
在水平维度测量周期内发送水平维度下行参考信号；其中，如果为水平维度的各组天线端口上的水平维度下行参考信号分配了在水平维度测量周期内的偏移量，在水平维度测量周期内发送水平维度下行参考信号，包括：在水平维度测量周期内的各个偏移量指示的子帧上，分别通过水平维度的各组天线端口发送水平维度下行参考信号；Transmitting a horizontal dimension downlink reference signal in a horizontal dimension measurement period; wherein, if a horizontal dimension downlink reference signal on each group of antenna ports in a horizontal dimension is assigned an offset in a horizontal dimension measurement period, in a horizontal dimension measurement period Transmitting the horizontal dimension downlink reference signal includes: transmitting, in the subframe indicated by each offset in the horizontal dimension measurement period, the horizontal dimension downlink reference signal by each group of antenna ports in the horizontal dimension;
在垂直维度测量周期内发送垂直维度下行参考信号；其中，如果为垂直维度的各组天线端口上的垂直维度下行参考信号分配了在垂直维度测量周期内的偏移量，在垂直维度测量周期内发送垂直维度下行参考信号，包括：在垂直维度测量周期内的各个偏移量指示的子帧上，分别通过垂直维度的各组天线端口发送垂直维度下行参考信号。Transmitting a vertical dimension downlink reference signal during a vertical dimension measurement period; wherein, if a vertical dimension downlink reference signal on each group of antenna ports of a vertical dimension is assigned an offset within a vertical dimension measurement period, within a vertical dimension measurement period Transmitting the vertical dimension downlink reference signal includes: transmitting, on the subframe indicated by each offset in the vertical dimension measurement period, the vertical dimension downlink reference signal by each group of antenna ports of the vertical dimension.
收发机1110，用于在处理器1100的控制下接收和发送数据。The transceiver 1110 is configured to receive and transmit data under the control of the processor 1100.
其中，在图11中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器1100代表的一个或多个处理器和存储器1120代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机1110可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。处理器1100负责管理总线架构和通常的处理，存储器1120可以存储处理器1100在执行操作时所使用的数据。Wherein, in FIG. 11, the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 1100 and various circuits of memory represented by memory 1120. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. The transceiver 1110 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium. The processor 1100 is responsible for managing the bus architecture and general processing, and the memory 1120 can store data used by the processor 1100 in performing operations.
本领域内的技术人员应明白，本公开的实施例可提供为方法、系统、或计算机程序产品。因此，本公开可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本公开可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。Those skilled in the art will appreciate that 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 an entirely hardware embodiment, an entirely 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, CD-ROM, optical storage, etc.) including computer usable program code.
本公开是参照根据本公开实施例的方法、设备(系统)、和计算机程序产 品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。The present disclosure is made with reference to a method, apparatus (system), and computer program according to an embodiment of the present disclosure. The flow chart and/or block diagram of the product is described. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。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.
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。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.
尽管已描述了本公开的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本公开范围的所有变更和修改。While the preferred embodiment of the present disclosure has been described, it will be apparent that those skilled in the art can make further changes and modifications to the embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and the modifications
显然，本领域的技术人员可以对本公开进行各种改动和变型而不脱离本公开的精神和范围。这样，倘若本公开的这些修改和变型属于本公开权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。 It will be apparent to those skilled in the art that various changes and modifications can be made in the present disclosure without departing from the spirit and scope of the disclosure. Thus, it is intended that the present invention cover the modifications and the modifications

Claims (16)

  1. 一种信道状态信息反馈方法，包括：A channel state information feedback method includes:
    接收水平维度下行参考信号，并根据所述水平维度下行参考信号确定水平维度的测量信道矩阵；和/或，接收垂直维度下行参考信号，并根据所述垂直维度下行参考信号确定垂直维度的测量信道矩阵；Receiving a horizontal dimension downlink reference signal, and determining a measurement channel matrix of a horizontal dimension according to the horizontal dimension downlink reference signal; and/or receiving a vertical dimension downlink reference signal, and determining a vertical dimension measurement channel according to the vertical dimension downlink reference signal matrix;
    其中，接收水平维度下行参考信号，并根据所述水平维度下行参考信号确定水平维度的测量信道矩阵，包括：在基站配置的水平维度测量周期内的各个偏移量指示的子帧上分别接收水平维度下行参考信号，根据每个所述子帧上接收到的水平维度下行参考信号分别获取每一个水平维度组信道矩阵，并根据各个水平维度组信道矩阵，确定水平维度的测量信道矩阵；和/或，接收垂直维度下行参考信号，并根据所述垂直维度下行参考信号确定垂直维度的测量信道矩阵，包括：在基站配置的垂直维度测量周期内的各个偏移量指示的子帧上分别接收垂直维度下行参考信号，根据每个所述子帧上接收到的垂直维度下行参考信号分别获取每一个垂直维度组信道矩阵，并根据各个垂直维度组信道矩阵，确定垂直维度的测量信道矩阵；在相同维度测量周期内的每个所述子帧上接收到的所述维度下行参考信号分别对应所述维度的一组天线端口，所述维度的各组天线端口是所述基站对所述维度的至少一行或列天线端口分组确定的；The receiving the horizontal dimension downlink reference signal, and determining the measurement channel matrix of the horizontal dimension according to the horizontal dimension downlink reference signal, including: receiving the level respectively on the subframe indicated by each offset in the horizontal dimension measurement period configured by the base station a dimension downlink reference signal, which acquires each horizontal dimension group channel matrix according to the horizontal dimension downlink reference signal received on each of the subframes, and determines a measurement channel matrix of a horizontal dimension according to each horizontal dimension group channel matrix; and/ Or receiving a vertical dimension downlink reference signal, and determining a measurement channel matrix of a vertical dimension according to the vertical dimension downlink reference signal, including: receiving vertical respectively on the subframes indicated by the respective offsets in the vertical dimension measurement period configured by the base station The dimension downlink reference signal acquires each vertical dimension group channel matrix according to the vertical dimension downlink reference signals received on each of the subframes, and determines a vertical channel measurement channel matrix according to each vertical dimension group channel matrix; Each of the dimensions in the measurement cycle The dimension downlink reference signals received on the subframe respectively correspond to a group of antenna ports of the dimension, and each group of antenna ports of the dimension is determined by the base station grouping at least one row or column antenna port of the dimension;
    根据水平维度的测量信道矩阵和垂直维度的测量信道矩阵，确定三维空间信道矩阵；Determining a three-dimensional spatial channel matrix according to a measurement channel matrix of a horizontal dimension and a measurement channel matrix of a vertical dimension;
    根据三维空间信道矩阵，确定信道状态信息，并将确定的信道状态信息反馈给所述基站。Channel state information is determined according to the three-dimensional spatial channel matrix, and the determined channel state information is fed back to the base station.
  2. 根据权利要求1所述的方法，其中，相同维度的每组天线端口与相邻的所述维度的每组天线端口之间均有一个重复测量的天线端口；根据各个所述维度组信道矩阵，确定所述维度的测量信道矩阵包括：The method according to claim 1, wherein each set of antenna ports of the same dimension and each set of antenna ports of said adjacent dimension have an antenna port that is repeatedly measured; according to each of said dimensional group channel matrices, Determining the measurement channel matrix of the dimension includes:
    对各个所述维度组信道矩阵进行修正；Correcting each of the dimensional group channel matrices;
    根据修正后的各个所述维度组信道矩阵，确定所述维度的测量信道矩阵。And determining a measurement channel matrix of the dimension according to each of the modified dimension group channel matrices.
  3. 根据权利要求2所述的方法，其中，对各个所述维度组信道矩阵进行 修正，包括：The method of claim 2, wherein each of said dimensional group channel matrices is performed Amendments, including:
    分别根据所述维度的每组天线端口的所述重复测量的天线端口所测量得到天线端口信道信息，对各个所述维度组信道矩阵进行修正，得到修正后的各个所述维度组信道矩阵。The antenna port channel information is measured according to the repeatedly measured antenna ports of each set of antenna ports of the dimension, and each of the dimensional group channel matrices is corrected to obtain a modified each of the dimensional group channel matrices.
  4. 根据权利要求2或3所述的方法，其中，根据修正后的各个所述维度组信道矩阵，确定所述维度的测量信道矩阵，包括：从修正后的各个所述维度组信道矩阵去掉所述重复测量的天线端口的信道信息，确定所述维度的测量信道矩阵。The method according to claim 2 or 3, wherein determining the measurement channel matrix of the dimension according to each of the modified dimensional group channel matrices comprises: removing the modified from each of the dimensional group channel matrices The measured channel information of the antenna port is repeated to determine the measured channel matrix of the dimension.
  5. 一种下行参考信号的发送方法，包括：A method for transmitting a downlink reference signal includes:
    将水平维度的至少一行天线端口进行分组，和/或将垂直维度的至少一列天线端口进行分组；Grouping at least one row of antenna ports of a horizontal dimension, and/or grouping at least one column of antenna ports of a vertical dimension;
    为用户设备分配水平维度测量周期，并为用户设备分配垂直维度测量周期；Allocating a horizontal dimension measurement period to the user equipment, and allocating a vertical dimension measurement period to the user equipment;
    为水平维度的各组天线端口上的水平维度下行参考信号分配在水平维度测量周期内的偏移量；和/或，为垂直维度的各组天线端口上的垂直维度下行参考信号分配在垂直维度测量周期内的偏移量；Assigning an offset in the horizontal dimension measurement period to the horizontal dimension downlink reference signal on each set of antenna ports of the horizontal dimension; and/or assigning a vertical dimension downlink reference signal on each set of antenna ports in the vertical dimension to the vertical dimension The offset within the measurement period;
    将水平维度测量周期和垂直维度测量周期，以及水平维度测量周期内的各个偏移量和/或垂直维度测量周期内的各个偏移量发送给所述用户设备；Transmitting the horizontal dimension measurement period and the vertical dimension measurement period, and each offset within the horizontal dimension measurement period and/or each offset within the vertical dimension measurement period to the user equipment;
    在水平维度测量周期内发送水平维度下行参考信号；其中，如果为水平维度的各组天线端口上的水平维度下行参考信号分配了在水平维度测量周期内的偏移量，在水平维度测量周期内发送水平维度下行参考信号包括：在水平维度测量周期内的各个偏移量指示的子帧上，分别通过水平维度的各组天线端口发送水平维度下行参考信号；Transmitting a horizontal dimension downlink reference signal in a horizontal dimension measurement period; wherein, if a horizontal dimension downlink reference signal on each group of antenna ports in a horizontal dimension is assigned an offset in a horizontal dimension measurement period, in a horizontal dimension measurement period Transmitting the horizontal dimension downlink reference signal includes: sending, on a subframe indicated by each offset in the horizontal dimension measurement period, a horizontal dimension downlink reference signal by each group of antenna ports of the horizontal dimension;
    在垂直维度测量周期内发送垂直维度下行参考信号；其中，如果为垂直维度的各组天线端口上的垂直维度下行参考信号分配了在垂直维度测量周期内的偏移量，在垂直维度测量周期内发送垂直维度下行参考信号包括：在垂直维度测量周期内的各个偏移量指示的子帧上，分别通过垂直维度的各组天线端口发送垂直维度下行参考信号。Transmitting a vertical dimension downlink reference signal during a vertical dimension measurement period; wherein, if a vertical dimension downlink reference signal on each group of antenna ports of a vertical dimension is assigned an offset within a vertical dimension measurement period, within a vertical dimension measurement period Transmitting the vertical dimension downlink reference signal includes: transmitting a vertical dimension downlink reference signal through each group of antenna ports of the vertical dimension on the subframes indicated by the respective offsets in the vertical dimension measurement period.
  6. 根据权利要求5所述的方法，其中，水平维度的每组天线端口与相邻 的水平维度的每组天线端口之间均有一个重复的天线端口，垂直维度的每组天线端口与相邻的垂直维度的每组天线端口之间均有一个重复的天线端口。The method of claim 5 wherein each set of antenna ports of the horizontal dimension is adjacent There is a repeating antenna port between each set of antenna ports in the horizontal dimension, and each antenna port in the vertical dimension has a repeating antenna port between each set of antenna ports in the adjacent vertical dimension.
  7. 根据权利要求5或6所述的方法，其中，将水平维度的至少一行天线端口进行分组，和/或将垂直维度的至少一列天线端口进行分组，包括：The method of claim 5 or 6, wherein grouping at least one row of antenna ports of a horizontal dimension and/or grouping at least one column of antenna ports of a vertical dimension comprises:
    确定所述水平维度的至少一行天线端口的分组数量；Determining a number of packets of at least one row of antenna ports of the horizontal dimension;
    确定水平维度的各组天线端口包括的天线端口数量；Determining the number of antenna ports included in each group of antenna ports in the horizontal dimension;
    根据所述水平维度的至少一行天线端口的分组数量和所述水平维度的每组天线端口包括的天线端口数量，将所述水平维度的至少一行天线端口分组，其中，水平维度的每组天线端口在水平维度上连续排布；And grouping at least one row of antenna ports of the horizontal dimension according to a number of packets of at least one row of antenna ports of the horizontal dimension and an number of antenna ports of each group of antenna ports of the horizontal dimension, wherein each group of antenna ports of the horizontal dimension Continually arranged in the horizontal dimension;
    和/或，and / or,
    确定所述垂直维度的至少一列天线端口的分组数量；Determining a number of packets of at least one column of antenna ports of the vertical dimension;
    确定垂直维度的各组天线端口包括的天线端口数量；Determining the number of antenna ports included in each group of antenna ports in the vertical dimension;
    根据所述垂直维度的至少一列天线端口的分组数量和所述垂直维度的各组天线端口包括的天线端口数量，将所述垂直维度的至少一列天线端口分组，其中，垂直维度的每组天线端口在垂直维度上连续排布。And grouping at least one column of antenna ports of the vertical dimension according to a number of packets of at least one column of antenna ports of the vertical dimension and an number of antenna ports of each group of antenna ports of the vertical dimension, wherein each group of antenna ports of a vertical dimension Arranged consecutively in the vertical dimension.
  8. 一种信道状态信息反馈装置，其特征在于，包括：A channel state information feedback device, comprising:
    测量信道矩阵确定模块，用于接收水平维度下行参考信号，并根据所述水平维度下行参考信号确定水平维度的测量信道矩阵；和/或，接收垂直维度下行参考信号，并根据所述垂直维度下行参考信号确定垂直维度的测量信道矩阵；a measurement channel matrix determining module, configured to receive a horizontal dimension downlink reference signal, and determine a horizontal channel measurement channel matrix according to the horizontal dimension downlink reference signal; and/or receive a vertical dimension downlink reference signal, and downlink according to the vertical dimension The reference signal determines a measurement channel matrix of a vertical dimension;
    其中，接收水平维度下行参考信号，并根据所述水平维度下行参考信号确定水平维度的测量信道矩阵，包括：在基站配置的水平维度测量周期内的各个偏移量指示的子帧上分别接收水平维度下行参考信号，根据每个所述子帧上接收到的水平维度下行参考信号分别获取每一个水平维度组信道矩阵，并根据各个水平维度组信道矩阵，确定水平维度的测量信道矩阵；和/或接收垂直维度下行参考信号，并根据所述垂直维度下行参考信号确定垂直维度的测量信道矩阵，包括：在基站配置的垂直维度测量周期内的各个偏移量指示的子帧上分别接收垂直维度下行参考信号，根据每个所述子帧上接收到的垂直维度下行参考信号分别获取每一个垂直维度组信道矩阵，并根据各个垂直 维度组信道矩阵，确定垂直维度的测量信道矩阵；在相同维度测量周期内的每个所述子帧上接收到的所述维度下行参考信号分别对应所述维度的一组天线端口，所述维度的各组天线端口是所述基站对所述维度的至少一行或列天线端口分组确定的；The receiving the horizontal dimension downlink reference signal, and determining the measurement channel matrix of the horizontal dimension according to the horizontal dimension downlink reference signal, including: receiving the level respectively on the subframe indicated by each offset in the horizontal dimension measurement period configured by the base station a dimension downlink reference signal, which acquires each horizontal dimension group channel matrix according to the horizontal dimension downlink reference signal received on each of the subframes, and determines a measurement channel matrix of a horizontal dimension according to each horizontal dimension group channel matrix; and/ Or receiving a vertical dimension downlink reference signal, and determining a measurement channel matrix of a vertical dimension according to the vertical dimension downlink reference signal, including: receiving vertical dimensions respectively on subframes indicated by respective offsets in a vertical dimension measurement period configured by the base station a downlink reference signal, which acquires each vertical dimension group channel matrix according to the vertical dimension downlink reference signals received on each of the subframes, and according to each vertical a dimension group channel matrix, the measurement channel matrix of the vertical dimension is determined; the dimension downlink reference signals received on each of the subframes in the same dimension measurement period respectively correspond to a set of antenna ports of the dimension, the dimension Each group of antenna ports is determined by the base station grouping at least one row or column antenna port of the dimension;
    三维空间信道矩阵确定模块，用于根据水平维度的测量信道矩阵和垂直维度的测量信道矩阵，确定三维空间信道矩阵；a three-dimensional spatial channel matrix determining module, configured to determine a three-dimensional spatial channel matrix according to a measurement channel matrix of a horizontal dimension and a measurement channel matrix of a vertical dimension;
    信道状态信息确定及反馈模块，用于根据三维空间信道矩阵，确定信道状态信息，并将确定的信道状态信息反馈给所述基站。The channel state information determining and feedback module is configured to determine channel state information according to the three-dimensional spatial channel matrix, and feed back the determined channel state information to the base station.
  9. 根据权利要求8所述的装置，其特征在于，相同维度的每组天线端口与相邻的所述维度的每组天线端口之间均有一个重复测量的天线端口；根据各个所述维度组信道矩阵，确定所述维度的测量信道矩阵时，测量信道矩阵确定模块用于：The apparatus according to claim 8, wherein each set of antenna ports of the same dimension and each set of antenna ports of said adjacent dimension have an antenna port for repeated measurement; a matrix, when determining a measurement channel matrix of the dimension, the measurement channel matrix determination module is configured to:
    对各个所述维度组信道矩阵进行修正；Correcting each of the dimensional group channel matrices;
    根据修正后的各个所述维度组信道矩阵，确定所述维度的测量信道矩阵。And determining a measurement channel matrix of the dimension according to each of the modified dimension group channel matrices.
  10. 根据权利要求9所述的装置，其特征在于，对各个所述维度组信道矩阵进行修正时，测量信道矩阵确定模块用于：The apparatus according to claim 9, wherein when the channel matrix of each of the dimensional groups is modified, the measurement channel matrix determining module is configured to:
    分别根据所述维度的每组天线端口的所述重复测量的天线端口所测量得到天线端口信道信息，对各个所述维度组信道矩阵进行修正，得到修正后的各个所述维度组信道矩阵。The antenna port channel information is measured according to the repeatedly measured antenna ports of each set of antenna ports of the dimension, and each of the dimensional group channel matrices is corrected to obtain a modified each of the dimensional group channel matrices.
  11. 根据权利要求9或10所述的装置，其特征在于，根据修正后的各个所述维度组信道矩阵，确定所述维度的测量信道矩阵时，测量信道矩阵确定模块用于：The apparatus according to claim 9 or 10, wherein, when determining the measurement channel matrix of the dimension according to each of the modified dimensional group channel matrices, the measurement channel matrix determining module is configured to:
    从修正后的各个所述维度组信道矩阵去掉所述重复测量的天线端口的信道信息，确定所述维度的测量信道矩阵。The channel information of the repeatedly measured antenna port is removed from the modified each of the dimensional group channel matrices, and the measured channel matrix of the dimension is determined.
  12. 一种下行参考信号的发送装置，其特征在于，包括：A device for transmitting a downlink reference signal, comprising:
    天线端口分组模块，用于将水平维度的至少一行天线端口进行分组，和/或将垂直维度的至少一列天线端口进行分组；An antenna port grouping module, configured to group at least one row of antenna ports in a horizontal dimension, and/or to group at least one column of antenna ports in a vertical dimension;
    参考信号资源分配模块，用于为用户设备分配水平维度测量周期，并为用户设备分配垂直维度测量周期； a reference signal resource allocation module, configured to allocate a horizontal dimension measurement period to the user equipment, and allocate a vertical dimension measurement period to the user equipment;
    偏移量分配模块，用于为水平维度的各组天线端口上的水平维度下行参考信号分配在水平维度测量周期内的偏移量；和/或，为垂直维度的各组天线端口上的垂直维度下行参考信号分配在垂直维度测量周期内的偏移量；An offset allocation module, configured to allocate an offset in a horizontal dimension measurement period for a horizontal dimension downlink reference signal on each group of antenna ports of a horizontal dimension; and/or a vertical on each group of antenna ports in a vertical dimension The dimension downlink reference signal is assigned an offset in the vertical dimension measurement period;
    配置信息发送模块，用于将水平维度测量周期和垂直维度测量周期，以及水平维度测量周期内的各个偏移量和/或垂直维度测量周期内的各个偏移量发送给所述用户设备；a configuration information sending module, configured to send the horizontal dimension measurement period and the vertical dimension measurement period, and each offset within the horizontal dimension measurement period and/or each offset within the vertical dimension measurement period to the user equipment;
    水平维度参考信号发送模块，用于在水平维度测量周期内发送水平维度下行参考信号；其中，如果为水平维度的各组天线端口上的水平维度下行参考信号分配了在水平维度测量周期内的偏移量，在水平维度测量周期内发送水平维度下行参考信号，包括：在水平维度测量周期内的各个偏移量指示的子帧上，分别通过水平维度的各组天线端口发送水平维度下行参考信号；a horizontal dimension reference signal sending module, configured to send a horizontal dimension downlink reference signal in a horizontal dimension measurement period; wherein, if a horizontal dimension downlink reference signal on each group of antenna ports in a horizontal dimension is assigned a bias in a horizontal dimension measurement period Transmitting, transmitting the horizontal dimension downlink reference signal in the horizontal dimension measurement period, including: transmitting the horizontal dimension downlink reference signal through each group of antenna ports of the horizontal dimension on the subframe indicated by each offset in the horizontal dimension measurement period ;
    垂直维度参考信号发送模块，用于在垂直维度测量周期内发送垂直维度下行参考信号；其中，如果为垂直维度的各组天线端口上的垂直维度下行参考信号分配了在垂直维度测量周期内的偏移量，在垂直维度测量周期内发送垂直维度下行参考信号，包括：在垂直维度测量周期内的各个偏移量指示的子帧上，分别通过垂直维度的各组天线端口发送垂直维度下行参考信号。a vertical dimension reference signal sending module, configured to send a vertical dimension downlink reference signal in a vertical dimension measurement period; wherein if a vertical dimension downlink reference signal on each group of antenna ports in a vertical dimension is assigned a bias in a vertical dimension measurement period Transmitting, transmitting a vertical dimension downlink reference signal in a vertical dimension measurement period, including: transmitting a vertical dimension downlink reference signal through each group of antenna ports of a vertical dimension on a subframe indicated by each offset in a vertical dimension measurement period .
  13. 根据权利要求12所述的装置，其特征在于，水平维度的每组天线端口与相邻的水平维度的每组天线端口之间均有一个重复的天线端口，垂直维度的每组天线端口与相邻的垂直维度的每组天线端口之间均有一个重复的天线端口。The apparatus according to claim 12, wherein each set of antenna ports in the horizontal dimension and each set of antenna ports in the adjacent horizontal dimension have a repeating antenna port, and each set of antenna ports and phases in the vertical dimension There is a duplicate antenna port between each set of antenna ports in the adjacent vertical dimension.
  14. 根据权利要求12或13所述的装置，其特征在于，所述天线端口分组模块用于：The apparatus according to claim 12 or 13, wherein the antenna port grouping module is configured to:
    确定所述水平维度的至少一行天线端口的分组数量；Determining a number of packets of at least one row of antenna ports of the horizontal dimension;
    确定水平维度的各组天线端口包括的天线端口数量；Determining the number of antenna ports included in each group of antenna ports in the horizontal dimension;
    根据所述水平维度的至少一行天线端口的分组数量和所述水平维度的每组天线端口包括的天线端口数量，将所述水平维度的至少一行天线端口分组，其中，水平维度的每组天线端口在水平维度上连续排布；And grouping at least one row of antenna ports of the horizontal dimension according to a number of packets of at least one row of antenna ports of the horizontal dimension and an number of antenna ports of each group of antenna ports of the horizontal dimension, wherein each group of antenna ports of the horizontal dimension Continually arranged in the horizontal dimension;
    和/或，and / or,
    确定所述垂直维度的至少一列天线端口的分组数量； Determining a number of packets of at least one column of antenna ports of the vertical dimension;
    确定垂直维度的各组天线端口包括的天线端口数量；Determining the number of antenna ports included in each group of antenna ports in the vertical dimension;
    根据所述垂直维度的至少一列天线端口的分组数量和所述垂直维度的各组天线端口包括的天线端口数量，将所述垂直维度的至少一列天线端口分组，其中，垂直维度的每组天线端口在垂直维度上连续排布，垂直维度的每组天线端口与相邻的垂直维度的每组天线端口之间均有一个极化相同的重复的天线端口。And grouping at least one column of antenna ports of the vertical dimension according to a number of packets of at least one column of antenna ports of the vertical dimension and an number of antenna ports of each group of antenna ports of the vertical dimension, wherein each group of antenna ports of a vertical dimension Continually arranged in the vertical dimension, each set of antenna ports in the vertical dimension and each set of antenna ports in the adjacent vertical dimension have a repeating antenna port of the same polarization.
  15. 一种用户设备，包括：A user equipment comprising:
    处理器，用于读取存储器中的程序，执行下列过程：A processor for reading a program in the memory, performing the following process:
    接收水平维度下行参考信号，并根据所述水平维度下行参考信号确定水平维度的测量信道矩阵；和/或，接收垂直维度下行参考信号，并根据所述垂直维度下行参考信号确定垂直维度的测量信道矩阵；Receiving a horizontal dimension downlink reference signal, and determining a measurement channel matrix of a horizontal dimension according to the horizontal dimension downlink reference signal; and/or receiving a vertical dimension downlink reference signal, and determining a vertical dimension measurement channel according to the vertical dimension downlink reference signal matrix;
    其中，接收水平维度下行参考信号，并根据所述水平维度下行参考信号确定水平维度的测量信道矩阵，包括：在基站配置的水平维度测量周期内的各个偏移量指示的子帧上分别接收水平维度下行参考信号，根据每个所述子帧上接收到的水平维度下行参考信号分别获取每一个水平维度组信道矩阵，并根据各个水平维度组信道矩阵，确定水平维度的测量信道矩阵；和/或接收垂直维度下行参考信号，并根据所述垂直维度下行参考信号确定垂直维度的测量信道矩阵，包括：在基站配置的垂直维度测量周期内的各个偏移量指示的子帧上分别接收垂直维度下行参考信号，根据每个所述子帧上接收到的垂直维度下行参考信号分别获取每一个垂直维度组信道矩阵，并根据各个垂直维度组信道矩阵，确定垂直维度的测量信道矩阵；在相同维度测量周期内的每个所述子帧上接收到的所述维度下行参考信号分别对应所述维度的一组天线端口，所述维度的各组天线端口是所述基站对所述维度的至少一行或列天线端口分组确定的；The receiving the horizontal dimension downlink reference signal, and determining the measurement channel matrix of the horizontal dimension according to the horizontal dimension downlink reference signal, including: receiving the level respectively on the subframe indicated by each offset in the horizontal dimension measurement period configured by the base station a dimension downlink reference signal, which acquires each horizontal dimension group channel matrix according to the horizontal dimension downlink reference signal received on each of the subframes, and determines a measurement channel matrix of a horizontal dimension according to each horizontal dimension group channel matrix; and/ Or receiving a vertical dimension downlink reference signal, and determining a measurement channel matrix of a vertical dimension according to the vertical dimension downlink reference signal, including: receiving vertical dimensions respectively on subframes indicated by respective offsets in a vertical dimension measurement period configured by the base station And determining, by the downlink reference signal, each vertical dimension group channel matrix according to the vertical dimension downlink reference signal received on each of the subframes, and determining a vertical channel measurement channel matrix according to each vertical dimension group channel matrix; Each of the sub-periods within the measurement period The dimensional downlink reference signals received on the frame respectively correspond to a group of antenna ports of the dimension, and each group of antenna ports of the dimension is determined by the base station grouping at least one row or column antenna port of the dimension;
    根据水平维度的测量信道矩阵和垂直维度的测量信道矩阵，确定三维空间信道矩阵；Determining a three-dimensional spatial channel matrix according to a measurement channel matrix of a horizontal dimension and a measurement channel matrix of a vertical dimension;
    根据三维空间信道矩阵，确定信道状态信息，并将确定的信道状态信息反馈给所述基站；Determining channel state information according to the three-dimensional spatial channel matrix, and feeding back the determined channel state information to the base station;
    收发机，用于接收和发送数据； a transceiver for receiving and transmitting data;
    存储器，用于保存处理器执行操作时所使用的数据。A memory that holds the data used by the processor to perform operations.
  16. 一种基站，包括：A base station comprising:
    处理器，用于读取存储器中的程序，执行下列过程：A processor for reading a program in the memory, performing the following process:
    将水平维度的至少一行天线端口进行分组，和/或将垂直维度的至少一列天线端口进行分组；Grouping at least one row of antenna ports of a horizontal dimension, and/or grouping at least one column of antenna ports of a vertical dimension;
    为用户设备分配水平维度测量周期，并为用户设备分配垂直维度测量周期；Allocating a horizontal dimension measurement period to the user equipment, and allocating a vertical dimension measurement period to the user equipment;
    为水平维度的各组天线端口上的水平维度下行参考信号分配在水平维度测量周期内的偏移量；和/或，为垂直维度的各组天线端口上的垂直维度下行参考信号分配在垂直维度测量周期内的偏移量；Assigning an offset in the horizontal dimension measurement period to the horizontal dimension downlink reference signal on each set of antenna ports of the horizontal dimension; and/or assigning a vertical dimension downlink reference signal on each set of antenna ports in the vertical dimension to the vertical dimension The offset within the measurement period;
    将水平维度测量周期和垂直维度测量周期，以及水平维度测量周期内的各个偏移量和/或垂直维度测量周期内的各个偏移量发送给所述用户设备；Transmitting the horizontal dimension measurement period and the vertical dimension measurement period, and each offset within the horizontal dimension measurement period and/or each offset within the vertical dimension measurement period to the user equipment;
    在水平维度测量周期内发送水平维度下行参考信号；其中，如果为水平维度的各组天线端口上的水平维度下行参考信号分配了在水平维度测量周期内的偏移量，在水平维度测量周期内发送水平维度下行参考信号，包括：在水平维度测量周期内的各个偏移量指示的子帧上，分别通过水平维度的各组天线端口发送水平维度下行参考信号；Transmitting a horizontal dimension downlink reference signal in a horizontal dimension measurement period; wherein, if a horizontal dimension downlink reference signal on each group of antenna ports in a horizontal dimension is assigned an offset in a horizontal dimension measurement period, in a horizontal dimension measurement period Transmitting the horizontal dimension downlink reference signal includes: transmitting, in the subframe indicated by each offset in the horizontal dimension measurement period, the horizontal dimension downlink reference signal by each group of antenna ports in the horizontal dimension;
    在垂直维度测量周期内发送垂直维度下行参考信号；其中，如果为垂直维度的各组天线端口上的垂直维度下行参考信号分配了在垂直维度测量周期内的偏移量，在垂直维度测量周期内发送垂直维度下行参考信号，包括：在垂直维度测量周期内的各个偏移量指示的子帧上，分别通过垂直维度的各组天线端口发送垂直维度下行参考信号；Transmitting a vertical dimension downlink reference signal during a vertical dimension measurement period; wherein, if a vertical dimension downlink reference signal on each group of antenna ports of a vertical dimension is assigned an offset within a vertical dimension measurement period, within a vertical dimension measurement period Transmitting a vertical dimension downlink reference signal, including: transmitting, in a subframe indicated by each offset in a vertical dimension measurement period, a vertical dimension downlink reference signal by each group of antenna ports of a vertical dimension;
    收发机，用于接收和发送数据；a transceiver for receiving and transmitting data;
    存储器，用于保存处理器执行操作时所使用的数据。 A memory that holds the data used by the processor to perform operations.
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