WO2014032606A1 - 一种传输参考信号的方法、装置及*** - Google Patents
一种传输参考信号的方法、装置及*** Download PDFInfo
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- WO2014032606A1 WO2014032606A1 PCT/CN2013/082598 CN2013082598W WO2014032606A1 WO 2014032606 A1 WO2014032606 A1 WO 2014032606A1 CN 2013082598 W CN2013082598 W CN 2013082598W WO 2014032606 A1 WO2014032606 A1 WO 2014032606A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0014—Three-dimensional division
- H04L5/0023—Time-frequency-space
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0684—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission using different training sequences per antenna
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0204—Channel estimation of multiple channels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/24—Cell structures
- H04W16/28—Cell structures using beam steering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
Definitions
- the present invention relates to the field of wireless communication technologies, and in particular, to a method, device, and system for transmitting a reference signal. Background technique
- LTE Long Term Evolution
- 3GPP 3rd Generation Partnership Project
- the traditional antenna array has a narrow half-power beam width (HPBW) in the vertical direction and has a fixed downtilt angle (ie, vertical direction for each user equipment in the cell).
- HPBW half-power beam width
- Providing a fixed beam makes it difficult to achieve beam scheduling and interference coordination between adjacent cells in the vertical direction.
- the downtilt angle of the antenna By adjusting the downtilt angle of the antenna, the system performance can be improved to some extent, but the downtilt adjustment is very slow, which is a three-dimensional (3 Dimension, 3D) beamforming forming (BF) transition mode.
- the 3D beamforming technology generates a narrow beam with different downtilt angles for each user equipment according to the position of the user equipment, and performs beamforming in both the horizontal direction and the vertical direction, which can fundamentally overcome the deficiencies of the conventional antenna and improve
- the signal-to-noise ratio of the target user greatly improves the performance of the cellular system.
- active antennas in the industry that can independently control each row and/or column.
- Traditional 2D antennas only have a weighted port in the horizontal dimension, no port in the vertical direction, and an active antenna system.
- the control port in the vertical direction of the antenna can meet the needs of beamforming in the vertical direction. Therefore, it provides necessary hardware support for the research of 3D beamforming technology.
- CQI Channel Quality Indicator
- PMI Precoding Matrix Indicator
- RI rank indication
- CQI information is used for user scheduling, Modulation and Coding Scheme (MCS) and/or Multi User-Multiple Input Multiple Output (MU-MIMO) Pairing, etc.
- MCS Modulation and Coding Scheme
- MU-MIMO Multi User-Multiple Input Multiple Output
- RI can be used to determine the number of layers used for data transmission, and the like.
- the reference signal also known as the pilot signal, is provided by the transmitter.
- the reference signal also known as the pilot signal, is provided by the transmitter.
- reference signals for channel estimation in the LTE system include Cell-specific Reference Signals (CRS) and Channel State Information-Reference Signals (CSI-RS).
- CRS is also referred to as a downlink common reference signal or a cell common pilot, and can be transmitted in each downlink subframe.
- Figure 1 is a schematic diagram of CRS mapping in the conventional Circular Prefix (CP) mode, and CRS is configured for each downlink subframe.
- R0, Rl, R2, and R3 in Figure 1 represent the CRSs configured for antenna ports 0, 1, 2, and 3, respectively.
- (a) is a schematic diagram of a corresponding CRS configuration manner when there is only one antenna port 0;
- (b) and (c) are schematic diagrams of corresponding CRS configuration manners when two antenna ports 0 and 1 are present;
- (d), (e), (f), and (g) are schematic diagrams of corresponding CRS configurations in the case where there are four antenna ports 0, 1, 2, and 3.
- each subgraph in Figure 1 the vertical axis direction represents the frequency domain, and each small cell represents a resource element (Resource Element, RE); the horizontal axis direction represents one subframe, and each sub-frame includes two
- the CSI-RS is a reference signal defined in the LTE system version 10 (Release 10, Rel-10), which is a periodically configured downlink pilot, and the standard defines that the CSI-RS is transmitted in the port 15 to the antenna port 22, and the existing A variety of CSI configuration modes are defined in the standard.
- Figure 2 is a schematic diagram of CSI-RS mapping using CSI configuration 0 (configuration 0) in the existing CP mode.
- R15 R22 in Figure 2 indicates the configuration of port 15 to antenna port 22, respectively.
- CSI-RS The sub-frame configuration of the CSI-RS is shown in Table 1.
- the receiving end Based on the transmission characteristics of 3D beamforming, the receiving end needs to estimate the channel of the horizontal dimension channel and the vertical dimension channel, and then can separately calculate the PMI information corresponding to the horizontal dimension channel and the vertical dimension channel and feed back to the transmitting end, and then perform 3D beamforming. deal with.
- the receiving end performs channel estimation, it needs to know the configuration of the reference signal, that is, the configuration of the pilot information.
- the configuration of the existing reference signal only includes the configuration of the horizontal-dimensional reference signal. Therefore, only the estimation of the horizontal-dimensional channel can be supported, the estimation of the vertical-dimensional channel cannot be supported, and the 3D beamforming cannot be supported.
- the configuration of the existing reference signal only includes the configuration of the horizontal dimension reference signal, and therefore, only supports water.
- the estimation of the flat channel does not support the estimation of the vertical dimension channel, and thus the channel information of the vertical dimension cannot be obtained, and the 3D beamforming cannot be supported.
- An embodiment of the present invention provides a method for transmitting a reference signal, including:
- the network side determines a subframe for carrying the reference signal
- all the determined pilot ports include at least one horizontal dimension pilot port and one column of vertical dimension pilot ports, and the reference signal configured in the horizontal dimension pilot port is a horizontal dimension reference signal, and the reference in the vertical dimension pilot port is configured.
- the signal is a vertical dimension reference signal.
- An embodiment of the present invention provides a method for receiving a reference signal, including:
- the receiving end receives the reference signal configured in the pilot port sent by the network side, where all the pilot ports include at least one horizontal dimension pilot port and one column of vertical dimension pilot ports, and the reference signal configured in the horizontal dimension pilot port
- the reference signal configured in the vertical dimension pilot port is a vertical dimension reference signal
- the receiving end estimates channel information of the horizontal dimension pilot port and channel information of the vertical dimension pilot port according to the horizontal dimension reference signal and the vertical dimension reference signal, respectively.
- An embodiment of the present invention provides a network side device that sends a reference signal, including:
- a subframe determining module configured to determine a subframe used to carry the reference signal
- a pilot port determining module configured to determine a pilot port of the reference signal
- a sending module configured to send, in the determined subframe, a reference signal configured in the pilot port
- all the determined pilot ports include at least one horizontal dimension pilot port and one column of vertical dimension pilot ports, and the reference signal configured in the horizontal dimension pilot port is a horizontal dimension reference signal, and the reference in the vertical dimension pilot port is configured.
- the signal is a vertical dimension reference signal.
- An embodiment of the present invention provides a receiving end device that receives a reference signal, and includes:
- a receiving module configured to receive a reference signal configured in a pilot port sent by the network side, where the pilot port includes at least one horizontal horizontal pilot port and one vertical vertical pilot port, and the reference configured in the horizontal dimension pilot port
- the signal is a horizontal dimension reference signal
- the reference signal configured in the vertical dimension pilot port is a vertical dimension reference signal
- a channel estimation module configured to separately estimate channel information of the horizontal dimension pilot port and channel information of the vertical dimension pilot port according to the horizontal dimension reference signal and the vertical dimension reference signal.
- An embodiment of the present invention provides a system for transmitting a reference signal, including: a network side device, configured to determine a subframe used to carry the reference signal; determine a pilot port of the reference signal; and send a reference signal configured in the pilot port in the determined subframe;
- a receiving end device configured to receive a reference signal configured in a pilot port sent by the network side, and respectively estimate channel information and a vertical dimension of the horizontal dimension pilot port according to the horizontal dimension reference signal and the vertical dimension reference signal Channel information of the pilot port;
- All the pilot ports include at least one horizontal dimension pilot port and one vertical dimension pilot port, and the reference signal configured in the horizontal dimension pilot port is a horizontal dimension reference signal, and the reference signal configured in the vertical dimension pilot port is Vertical dimension reference signal.
- FIG. 1 is a schematic diagram of CRS mapping in a CP mode in the background art
- FIG. 2 is a schematic diagram of a CSI-RS mapping in a CP mode in the background art
- FIG. 3 is a schematic flowchart of a method for transmitting a reference signal according to an embodiment of the present invention
- FIG. 4A is a schematic diagram of a horizontal dimension reference signal and a vertical dimension reference signal configured in the same subframe according to an embodiment of the present invention
- FIG. 4B is a schematic diagram of a horizontal dimension reference signal and a vertical dimension reference signal configured in different subframes according to an embodiment of the present invention
- FIG. 5B is a schematic diagram of a first example of assigning a port number to a first determined pilot port according to an embodiment of the present invention
- FIG. 5C is a schematic diagram showing a second example of assigning a port number to a first determined pilot port according to an embodiment of the present invention
- FIG. 5 is a schematic diagram of a third example of assigning a port number to a first determined pilot port according to an embodiment of the present invention
- FIG. 6A is a schematic diagram of a second determined pilot port according to an embodiment of the present invention.
- FIG. 6B is a schematic diagram of a first example of assigning a port number to a second determined pilot port according to an embodiment of the present invention
- FIG. 6C is a schematic diagram showing a second example of assigning a port number to a second determined pilot port according to an embodiment of the present invention
- 7A-7B are schematic diagrams showing an example of periodically configuring a horizontal dimension reference signal according to an embodiment of the present invention
- FIGS. 8A-8D are schematic diagrams showing an example of periodically configuring a vertical dimension reference signal according to an embodiment of the present invention.
- FIG. 9 is a schematic flowchart diagram of a method for receiving a reference signal according to an embodiment of the present invention.
- 10A is a schematic structural diagram of a network side device for transmitting a reference signal according to an embodiment of the present invention
- FIG. 10B is a schematic diagram showing the physical structure of a network side device that sends a reference signal according to an embodiment of the present invention
- FIG. 11 is a schematic structural diagram of a network side device receiving a reference signal according to an embodiment of the present invention.
- FIG. 11B is a schematic diagram showing the physical structure of a network side device that receives a reference signal according to an embodiment of the present invention
- FIG. 12 is a schematic structural diagram of a system for transmitting a reference signal according to an embodiment of the present invention.
- DETAILED DESCRIPTION OF THE INVENTION Embodiments of the present invention can implement a dynamic 3D beamforming technology by transmitting a vertical dimension reference signal, thereby improving cell edge user equipment throughput and average throughput.
- a method for transmitting a reference signal includes the following steps:
- Step 31 The network side determines a subframe used to carry the reference signal.
- Step 32 The network side determines a pilot port of the reference signal.
- Step 33 The network side sends a reference signal configured in the pilot port in the determined subframe.
- all the determined pilot ports include at least one horizontal dimension pilot port and one column of vertical dimension pilot ports, and the reference signal configured in the horizontal dimension pilot port is a horizontal dimension reference signal, and the reference in the vertical dimension pilot port is configured.
- the signal is a vertical dimension reference signal.
- the pilot port in the embodiment of the present invention refers to an antenna port for configuring a reference signal.
- the antenna ports supported by the cell are arranged in an array, wherein the rows in the antenna port array represent the horizontal direction and include M antenna ports, the columns indicate the vertical direction and include N antenna ports, and M and N are not less than 1 Positive integer.
- the set of values of M is ⁇ 1, 2, 4, 8 ⁇
- the set of values of N is ⁇ 1, 2, 4, 8 ⁇ .
- the horizontal dimension reference signal and the vertical dimension reference signal in the embodiment of the present invention are channel state indication reference signals CSI-RS defined in the 3GPP standard.
- the determining, by the network side, the subframe for carrying the reference signal includes the following two modes: Mode 1: The subframe for carrying the horizontal dimension reference signal and the subframe for carrying the vertical dimension reference signal are the same subframe. , as shown in Figure 4A;
- the horizontal dimension reference signal and the vertical dimension reference signal may adopt a periodic configuration or a trigger configuration; wherein, a transmission period of the horizontal dimension reference signal and the vertical dimension reference signal, and the determined horizontal dimension reference signal and the vertical dimension are used to carry
- the subframe of the reference signal may be agreed by both the network side and the receiving end, or may be notified to the receiving end by the network side through high layer signaling or physical layer control signaling;
- the network side may notify the receiving end of the sending period and the subframe offset of the horizontal dimension reference signal and the vertical dimension reference signal before transmitting the reference signal for the first time. the amount;
- the network side may notify the receiving end to use the subframe for carrying the horizontal dimension reference signal and the vertical dimension reference signal before each time the reference signal is transmitted.
- Manner 2 a subframe for carrying a horizontal dimension reference signal and a subframe for carrying a vertical dimension reference signal are different subframes, as shown in FIG. 4B. Further, the horizontal dimension reference signal and the vertical dimension reference signal are respectively configured on the same or different frequency domain resources of different subframes.
- the horizontal dimension reference signal and/or the vertical dimension reference signal may be configured in a periodic configuration, or may be configured in a trigger configuration;
- the horizontal dimension reference signal transmission period and/or the vertical dimension reference signal transmission period may be agreed by both the network side and the receiving end, or may be adopted by the network side through the upper layer. Signaling or physical layer control signaling is notified to the receiving end;
- the subframe for carrying the horizontal dimension reference signal and the subframe for carrying the vertical dimension reference signal may be agreed by both the network side and the receiving end, or The network side notifies the receiving end through high layer signaling or physical layer control signaling;
- the horizontal dimension reference signal transmission period and the vertical dimension reference signal transmission period include the following three cases:
- the horizontal dimension reference signal transmission period is the same as the vertical dimension reference signal transmission period
- the vertical dimension reference signal transmission period is J times the horizontal dimension reference signal transmission period, where J is a positive integer not less than 1; J may be a fixed value, or may be a value selected from a given set of values;
- J may be agreed by both the network side and the receiving end, or may be notified to the receiving end by the network side through high layer signaling or physical layer control signaling;
- the horizontal dimension reference signal transmission period is K times of the vertical dimension reference signal transmission period, where K is a positive integer not less than 1; K may be a fixed value, or may be a value selected from a given set of values;
- K may be agreed by both the network side and the receiving end, or may be notified to the receiving end by the network side through high layer signaling or physical layer control signaling.
- the network side may notify the receiving end of the transmission period and the sub-dimensional reference signal and/or the vertical dimension reference signal before the first transmission of the reference signal.
- the network side may notify the receiving end of the subframe configured for the horizontal dimension reference signal and/or the vertical dimension reference signal before each transmission of the reference signal.
- the horizontal dimension reference signal in the embodiment of the present invention may adopt the configuration of the CSI-RS defined in the 3GPP 36.211 standard, and the vertical dimension reference signal may be periodically configured or triggered.
- Configuration preferably, the network side may configure a vertical dimension reference signal in each downlink subframe.
- the subframe configuration of the vertical dimension reference signal can reuse the CSI-RS configuration in the 3GPP 36.211 standard to determine the transmission period, the subframe offset, and the frequency domain of the vertical dimension reference signal.
- the transmission period and the subframe offset of the vertical dimension reference signal may be configured independently or jointly with the horizontal dimension reference signal.
- the subframe offset of the vertical dimension reference signal may be set to Water
- the sub-frame offset of the flat-dimensional reference signal is different.
- the CSI-RS configuration of the port number and the vertical dimension reference signal may be agreed between the network side and the receiving end, or may be notified to the receiving end by the network side through high layer signaling or physical layer control signaling.
- the subframe carrying the horizontal dimension reference signal is the same subframe as the subframe carrying the vertical dimension reference signal
- step 32 # ⁇ determines the pilot port of the reference signal according to one of the following manners:
- the network side configures all antenna ports in the antenna port array as pilot ports, and uses each row of pilot ports as a row of horizontal dimension pilot ports and each column of pilot ports as a column of vertical dimension pilot ports, such as As shown in FIG. 5A, in the antenna port array, each row includes four antenna ports, and each column includes two antenna ports as an example, and the determined number of pilot ports is eight;
- mode A includes the following three methods:
- the network side configures the same CSI-RS as the reference signal of each horizontal dimension pilot port and the reference signal of each vertical dimension pilot port; wherein, the CSI-RS configuration includes: CSI-RS configuration Transmit cycle, sub-frame offset, and time-frequency domain location.
- the network side may allocate different port numbers to each pilot port from the CSI-RS configurable port numbers defined in the 3GPP standard, and the antenna port used to configure the CSI-RS defined in the 3GPP standard is port 15 ⁇ Port 22.
- the network side may arbitrarily select ⁇ ⁇ N from the port number 15 22 as the port number of each pilot port.
- the CSI-RS configuration used in the embodiment of the present invention is defined in the existing 3GPP 36.211 protocol, and various CSI-RS configurations are defined in the 3GPP 36.211 protocol, and details are not described herein again.
- the port number allocated by the network side for the pilot port is 15 ⁇ (15+ ⁇ ⁇ ⁇ -1).
- the arrangement manner of the horizontal dimension pilot port and the vertical dimension pilot port is preferably the following two forms:
- the pilot port shown in FIG. 5A is taken as an example.
- the port number configured on the network side for the pilot port is as shown in FIG. 5A, and the network side determines the pilot port 15, the pilot port 16, the pilot port 17, and the guide.
- the frequency port 18 is a first horizontal horizontal pilot port, and correspondingly, after receiving the reference signal configured in each pilot port, the receiving end determines the pilot port 15,
- the reference signals of the pilot port 16, the pilot port 17, and the pilot port 18 are the first row horizontal dimension reference signals, and the channel information of the first row horizontal dimension pilot port is estimated according to the first row horizontal dimension reference signal;
- the horizontal dimension pilot port is similar and will not be described here.
- the network side determines that the pilot port 15 and the pilot port 19 are the first column vertical dimension pilot ports.
- the receiving end determines the pilot port 15 and the pilot.
- the reference signal of the port 19 is the first column vertical dimension reference signal, and the channel information of the first column vertical dimension pilot port is estimated according to the first column vertical dimension reference signal; the other columns of the vertical dimension pilot port are similar, and are not described herein again. .
- the port number of the vertical dimension pilot port of the jth column is 15+Gl) x N ⁇ 15+j ⁇ ⁇ -1 , where j is an integer, and the value of j is 1 ⁇ M;
- the port number of each horizontal horizontal pilot port is determined according to the port number of each vertical dimension pilot port, that is, the port number of the first horizontal horizontal pilot port is 15, (15+N) ,
- the port number of the horizontal pilot port of the second row is (15+1 ),
- the horizontal dimension pilot port and the vertical dimension pilot port may also use other arrangements, such as random arrangement, etc., wherein the horizontal dimension pilot port and the vertical dimension pilot port are arranged.
- the method may be agreed by the network side and the receiving end, or may be determined by the network side, and notified to the receiving end by using high layer signaling or physical layer control signaling.
- the network side configures different CSI-RSs as the reference signals of different horizontal horizontal pilot ports and the reference signals of corresponding vertical dimension pilot ports.
- the network side can allocate the same port number for each row of pilot ports, and the port numbers of the same column of pilot ports are the same.
- the network side may arbitrarily select one of the port numbers 15 22 as the port number of each row of the pilot port.
- the port number allocated by the network side for each row of pilot ports is 15 ⁇ (15+ ⁇ -1), wherein the port number of each horizontal horizontal pilot port is 15 ⁇ (15+ ⁇ -1), then
- the port number of the j-column vertical dimension pilot port is (15+jl), j is an integer, and j is 1 ⁇ M, that is: port 15 of the first CSI-RS configuration, second CSI -RS configured port 15 Port 15 of the Mth CSI-RS configuration is the first column of vertical dimension pilot ports; port 16 of the first type of CSI-RS configuration, port 16 of the second type of CSI-RS configuration, type M Port 16 of the CSI-RS configuration is the second column of vertical dimension pilot ports; and so on, to obtain all column vertical dimension pilot ports.
- the pilot port shown in FIG. 5A is taken as an example.
- the port number configured on the network side for the pilot port is as shown in FIG. 5C, and the network side determines the pilot port 15 and the guide of the first CSI-RS configuration.
- the frequency port 16, the pilot port 17, and the pilot port 18 are first horizontal horizontal pilot ports.
- the receiving end determines the first CSI-RS.
- the reference signal of the port 18 is the first horizontal horizontal reference signal, and the channel information of the first horizontal horizontal pilot port is estimated according to the first horizontal horizontal reference signal; the other horizontal horizontal pilot ports are similar, and are not described herein again. ;
- the network side determines that the pilot port 15 of the first CSI-RS configuration and the pilot port 15 of the second CSI-RS configuration are the first column vertical dimension pilot ports, and correspondingly, the receiving end receives each pilot.
- determining the reference signal of the pilot port 15 of the first CSI-RS configuration and the pilot port 15 of the second CSI-RS configuration is the first column vertical dimension reference signal, and according to the first
- the column vertical dimension reference signal estimates the channel information of the first column of the vertical dimension pilot port; the other column vertical dimension pilot ports are similar, and are not described here.
- the allocation of the port number of the pilot port configuration may also be performed in other manners, such as random allocation, etc., wherein the arrangement of the horizontal dimension pilot port and the vertical dimension pilot port may be agreed by both the network side and the receiving end. It may also be determined by the network side, and notified to the receiving end by high layer signaling or physical layer control signaling.
- Mode A3 The network side configures different CSI-RSs as reference signals of different column vertical dimension pilot ports and reference signals of corresponding horizontal dimension pilot ports.
- the network side can allocate the same port number for each column of pilot ports, and the port numbers of the same row of pilot ports are the same.
- the network side may arbitrarily select N from the port number 15 22 as the port number of each column of the pilot port.
- the port number allocated by the network side for each column of the pilot port is 15 ⁇ (15+N-1), wherein the port number of each vertical dimension pilot port is 15 ⁇ (15+ ⁇ -1), then
- the port number of the horizontal dimension pilot port of the i-th row is (15+il), i is an integer, and the value of i is 1 ⁇ N, that is, port 15 of the first CSI-RS configuration, and the second CSI -RS configured port 15 Port 15 of the Nth CSI-RS configuration is the first horizontal horizontal pilot port; the first CSI-RS configured port 16, the second CSI-RS configured port 16 the Nth Port 16 of the CSI-RS configuration is the second horizontal pilot port; and so on, all the horizontal pilot ports are obtained.
- the pilot port shown in FIG. 5A is taken as an example.
- the port number configured on the network side for the pilot port is as shown in FIG. 5D, and the network side determines the pilot port 15 and the guide of the first CSI-RS configuration.
- the frequency port 16 is a first column of vertical dimension pilot ports.
- the receiving end determines the pilot port 15 and the pilot port of the first CSI-RS configuration.
- the reference signal of 16 is the first column vertical dimension reference signal, and the channel information of the first column vertical dimension pilot port is estimated according to the first column vertical dimension reference signal; the other columns of vertical dimension pilot ports are similar, and are not described herein again;
- the network side determines the pilot port 15 of the first CSI-RS configuration, the pilot port 15 of the second CSI-RS configuration, the pilot port 15 of the third CSI-RS configuration, and the fourth CSI-RS configuration.
- the pilot port 15 is a first-line horizontal-dimensional pilot port.
- the receiving end determines the pilot port 15 and the second type of the first CSI-RS configuration. Pilot port 15 for CSI-RS configuration, pilot port for third CSI-RS configuration
- the reference signal of the pilot port 15 of the 15th and the fourth CSI-RS configuration is the first horizontal dimension reference signal, and according to the first
- the horizontal horizontal reference signal is used to estimate the channel information of the first horizontal horizontal pilot port; the other horizontal horizontal pilot ports are similar, and are not described here.
- the allocation of the port number of the pilot port configuration may also be performed in other manners, such as random allocation, etc., wherein the arrangement of the horizontal dimension pilot port and the vertical dimension pilot port may be agreed by both the network side and the receiving end. It may also be determined by the network side, and notified to the receiving end by high layer signaling or physical layer control signaling.
- the network side can determine the horizontal dimension pilot port and the vertical dimension pilot port according to mode A2 and mode A3.
- Method B The network side performs antenna virtualization processing according to the antenna port array, and obtains one row and one column of pilot ports that need to be configured with reference signals, and uses the pilot port of the row as a horizontal dimension pilot port and the column pilot port.
- the vertical dimension pilot port wherein, the number of pilot ports of one row is M, and the number of pilot ports of the column is N, and M+N pilot ports are required, as shown in FIG. 6A, after being processed by virtualization
- the number of pilot ports in a row is four, and the number of pilot ports in a row is two, and the number of determined pilot ports is six.
- the network side antenna virtualization processing includes the following two methods:
- Mode 1 the network side selects a certain row and a column as the pilot port from the antenna port array; or mode 2, the network side uses the fixed antenna virtualization weight to perform antenna virtualization processing, and obtains one row and one column to be configured.
- the pilot port of the reference signal is a certain row and a column as the pilot port from the antenna port array.
- the mode B includes the following two methods:
- the network side configures the same CSI-RS as the reference signal of each horizontal dimension pilot port and the reference signal of each vertical dimension pilot port.
- the network side may assign a different port number to each pilot port.
- the network side may arbitrarily select M+N from the port number 15 22 as the port number of each pilot port.
- the port number allocated by the network side for the pilot port is 15 ⁇ (15+ ⁇ ⁇ ⁇ -1).
- the port number configured on the network side for the pilot port is as shown in FIG. 6B, and the network side determines the pilot port 15, the pilot port 16, the pilot port 17, and
- the pilot port 18 is a horizontal dimension pilot port.
- the receiving end determines the pilot port 15, the pilot port 16, the pilot port 17, and the pilot port.
- the CSI-RS of 18 is a horizontal horizontal reference signal, and the channel information of the horizontal dimension pilot port of the row is estimated according to the horizontal dimension reference signal of the row;
- the network side determines that the pilot port 19 and the pilot port 20 are the first column vertical dimension pilot ports.
- the receiving end determines the pilot port 19 and the pilot.
- the reference signal of the port 20 is a column of vertical dimension reference signals, and channel information of the vertical vertical pilot ports of the column is estimated according to the column vertical dimension reference signals.
- the port number of the pilot port configuration can be allocated in other ways, such as random allocation, etc.
- the arrangement of the unidirectional pilot port and the vertical dimension pilot port may be agreed by both the network side and the receiving end, or may be determined by the network side, and notified to the receiving end by high layer signaling or physical layer control signaling. .
- Mode B2 The network side configures different CSI-RSs as the reference signals of the horizontal dimension pilot port and the reference signals of the vertical dimension pilot port.
- the network side may arbitrarily select, from the port number 15 22, the port numbers respectively as the horizontal dimension pilot ports, and arbitrarily select, from the port number 15 22, the port numbers respectively for each vertical dimension pilot port.
- the port number assigned by the network side to the horizontal dimension pilot port is 15 ⁇ (15+M-1), and the port number assigned to the vertical dimension pilot port is 15 ⁇ (15+N-1).
- the pilot port shown in FIG. 6A is taken as an example.
- the port number configured on the network side for the pilot port is as shown in FIG. 6C.
- the CSI-RS configured on the network side for the horizontal dimension reference signal is configured as the first CSI.
- the CSI-RS configured for the vertical dimension reference signal is configured as the second CSI-RS configuration
- the network side determines the pilot port 15, the pilot port 16, and the pilot port 17 of the first CSI-RS configuration.
- the pilot port 18 is a horizontal dimension pilot port, and 4 estimates the channel information of the horizontal dimension pilot port of the row according to the horizontal dimension reference signal of the row;
- the network side determines that the pilot port 15 and the pilot port 16 of the second CSI-RS configuration are vertical dimension pilot ports.
- the receiving end determines the pilot.
- the reference signals of the port 15 and the pilot port 16 are vertical dimension reference signals, and channel information of the vertical vertical pilot ports of the column is estimated according to the column vertical dimension reference signals.
- the allocation of the port number of the pilot port can be used in other manners, and is not used here.
- the arrangement of the horizontal dimension pilot port and the vertical dimension pilot port may be by the network side and the receiving end.
- the agreement between the two parties may also be determined by the network side, and notified to the receiving end by high-level signaling or physical layer control signaling.
- the subframe carrying the horizontal dimension reference signal and the subframe carrying the vertical dimension reference signal are different subframes, and the step 32 specifically includes:
- the network side performs antenna virtualization processing according to the antenna port array, and obtains one row and one column of pilot ports that need to be configured with reference signals, and uses the row pilot port as a horizontal dimension pilot port and the column pilot port as a vertical dimension guide.
- the frequency port wherein, the number of pilot ports of one row is M, and the number of pilot ports of the column is ⁇ .
- the network side may arbitrarily select M from the port number 15 22 as the port number of each horizontal dimension pilot port;
- the network side can arbitrarily select N from the port number 15 22 as the port number of each vertical dimension pilot port.
- the port number assigned by the network side to the horizontal dimension pilot port is 15 ⁇ (15+M-1); the port number assigned by the network side to the vertical dimension pilot port is 15 ⁇ (15+N-1).
- the port numbers of the horizontal dimension pilot port and the vertical dimension pilot port may be agreed by the network side and the receiving end, or may be determined by the network side, and through high layer signaling or physical layer control signaling. Wait for the notification to the receiving end.
- the network side sends the reference signal configured in the pilot port in the determined subframe, including: The network side transmits a reference signal configured in the horizontal dimension pilot port in a subframe carrying the horizontal dimension reference signal in each set horizontal dimension reference signal transmission period; and/or
- the network side transmits the reference signal configured in the vertical dimension pilot port in the subframe carrying the vertical dimension reference signal in each set vertical dimension reference signal transmission period.
- the vertical dimension reference signal transmission period is the same as the horizontal dimension reference signal transmission period
- the vertical dimension reference signal transmission period is J times the horizontal dimension reference signal transmission period, where J is an integer not less than 1; or
- the horizontal dimension reference signal transmission period is K times the vertical dimension reference signal transmission period, where K is an integer not less than one.
- the network side determines that the horizontal dimension pilot port and the vertical dimension pilot port further comprise one or a combination of the following methods:
- Method 1 In each horizontal dimension signal sending period, select different rows from all rows of the antenna port array as pilot ports;
- the first row in the selected antenna port array is configured as a horizontal dimension pilot port, as shown in FIG. 7A, and correspondingly, the receiving end is based on the first horizontal dimension reference.
- the receiving end performs the horizontal dimension pilot port according to the reference signal configured in the horizontal dimension pilot port received in the second horizontal dimension reference signal transmission period.
- Channel estimation in order to traverse all horizontal dimension channels; wherein, when the horizontal dimension reference signals corresponding to the first row and the second row in the antenna array are configured, they may be configured in the same resource or in different resources.
- Method 2 In each vertical dimension signal transmission period, select different columns from all the columns of the antenna port array as pilot ports.
- the first column in the selected antenna port array is configured as a vertical dimension pilot port, as shown in FIG. 8A, and correspondingly, the receiving end is based on the first vertical dimension reference.
- Selecting a reference signal configured in a vertical dimension pilot port during a signal transmission period to perform channel estimation of a vertical dimension pilot port; and selecting a second column configuration in the antenna port array during a second vertical dimension reference signal transmission period For the vertical dimension pilot port, as shown
- the receiving end performs channel estimation of the vertical dimension pilot port according to the reference signal configured in the vertical dimension pilot port received in the second vertical dimension reference signal transmission period;
- the third column in the selected antenna port array is configured as a vertical dimension pilot port, as shown in FIG. 8C, correspondingly, the receiving end receives according to the third vertical dimension reference signal transmission period.
- the reference signal configured in the vertical dimension pilot port is used for channel estimation of the vertical dimension pilot port; in the fourth vertical dimension reference signal transmission period, the fourth column of the selected antenna port array is configured as a vertical dimension pilot port, As shown in FIG.
- the receiving end is based on the fourth a reference signal configured in a vertical dimension pilot port received during a vertical dimension reference signal transmission period, performing channel estimation of a vertical dimension pilot port to traverse all vertical dimension channels; wherein, vertical vertical to each column in the antenna array
- the dimension reference signal When the dimension reference signal is configured, it can be configured in the same resource or in different resources.
- the network side can also use the trigger configuration.
- the embodiment of the present invention after step 32, and before step 33 further includes:
- the network side sends the configuration information of the horizontal dimension reference signal and the vertical dimension reference signal to the receiving end to instruct the receiving end to determine the corresponding horizontal dimension reference signal and the vertical dimension reference signal according to the configuration information of the horizontal dimension reference signal and the vertical dimension reference signal, where
- the configuration information includes a subframe configuration of the horizontal dimension reference signal and the vertical dimension reference signal, and a configuration of the horizontal dimension pilot port and the vertical dimension pilot port.
- the configuration information includes but is not limited to one or a combination of the following information: a pilot port setting of a horizontal dimension reference signal and a vertical dimension reference signal, a pilot pattern, a transmission period, and Subframe offset, etc.
- the configuration information includes but is not limited to one or a combination of the following information:
- the pilot port settings of the horizontal dimension reference signal and the vertical dimension reference signal, the pilot pattern, and the subframe number or trigger condition for transmitting the horizontal dimension reference signal and the vertical dimension reference signal are defined by the pilot port settings of the horizontal dimension reference signal and the vertical dimension reference signal, the pilot pattern, and the subframe number or trigger condition for transmitting the horizontal dimension reference signal and the vertical dimension reference signal.
- the network side sends configuration information of the horizontal dimension reference signal and the vertical dimension reference signal through high layer signaling or physical layer control signaling.
- the configuration information further includes indication information, where the indication information is used to indicate configuration information belonging to the horizontal dimension reference signal and configuration information belonging to the vertical dimension reference signal in the configuration information;
- the configuration information may not include the indication information, and the receiving end device may receive the reference signal configuration information of two dimensions.
- a method for receiving a reference signal includes:
- Step 91 The receiving end receives the reference signal configured in the pilot port sent by the network side, where all the pilot ports include at least one horizontal dimension pilot port and one column of vertical dimension pilot ports, and the horizontal dimension pilot port is configured.
- the reference signal is a horizontal dimension reference signal
- the reference signal configured in the vertical dimension pilot port is a vertical dimension reference signal
- Step 92 The receiving end estimates channel information of the horizontal dimension pilot port and channel information of the vertical dimension pilot port according to the horizontal dimension reference signal and the vertical dimension reference signal, respectively.
- the method further includes:
- the receiving end receives configuration information of a horizontal dimension reference signal and a vertical dimension reference signal sent by the network side, where the configuration information includes a subframe configuration of the horizontal dimension reference signal and the vertical dimension reference signal, and a horizontal dimension pilot port and a vertical dimension. Pilot port configuration.
- the network side device that sends the reference signal is also provided in the embodiment of the present invention.
- the principle of the network side device solving the problem is similar to the method for sending the reference signal, so the implementation of the network side device can be seen.
- the implementation of the method, the repetition will not be repeated.
- a network side device for transmitting a reference signal includes: a subframe determining module 101, configured to determine a subframe for carrying a reference signal;
- a pilot port determining module 102 configured to determine a pilot port of the reference signal
- the sending module 103 is configured to send, in the determined subframe, a reference signal configured in the pilot port;
- all the determined pilot ports include at least one horizontal dimension pilot port and one column of vertical dimension pilot ports, and the reference signal configured in the horizontal dimension pilot port is a horizontal dimension reference signal, and the reference in the vertical dimension pilot port is configured.
- the signal is a vertical dimension reference signal.
- the pilot port determining module 102 is specifically configured to:
- each row of pilot ports is regarded as a horizontal row.
- the pilot port and each column of pilot ports serve as a column of vertical dimension pilot ports;
- the antenna virtualization processing is performed to obtain one row and one column of pilot ports that need to be configured with reference signals, and the row pilot port is used as a horizontal dimension pilot port and the column pilot port is used as a vertical dimension pilot port.
- the number of pilot ports of one row is M
- the number of pilot ports of the column is N.
- the pilot port determining module 102 is further configured to:
- the CSI-RS configuration includes: a CSI-RS transmission period, a subframe offset, and a time-frequency domain location.
- the pilot port determining module 102 is further configured to:
- Different CSI-RS configurations are respectively configured as reference signals of different horizontal horizontal pilot ports and reference signals of corresponding vertical dimension pilot ports;
- Different CSI-RS configurations are configured as reference signals for different column vertical dimension pilot ports and reference signals for corresponding horizontal dimension pilot ports.
- the pilot port determining module 102 is further configured to:
- the pilot port determining module 102 is specifically configured to:
- M+N is not greater than the maximum number of CSI-RS configurable ports defined in the 3GPP standard, and for each pilot port When the assigned port numbers are different, the same CSI-RS configuration is used as the reference signal of each horizontal dimension pilot port and the configuration of the reference signal of each vertical dimension pilot port.
- the pilot port determining module 102 is further configured to:
- Different CSI-RS configurations are used as the reference signal of the horizontal dimension pilot port and the reference signal of the vertical dimension pilot port.
- the pilot port determining module 102 is further configured to:
- the antenna virtualization processing is used to obtain one row and one column of pilot ports that need to be configured with reference signals, and
- the pilot port of the row is used as the horizontal dimension pilot port and the column pilot port is used as the vertical dimension pilot port; wherein, the number of pilot ports of one row is M, and the number of pilot ports of the column is N.
- the sending module 103 is further configured to:
- the reference signal configured in the vertical dimension pilot port is transmitted in a subframe carrying the vertical dimension reference signal in each set vertical dimension reference signal transmission period.
- the pilot port determining module 102 is further configured to:
- the network side selects different rows from all rows of the antenna port array as pilot ports in each horizontal dimension signal transmission period
- the network side selects different columns from all the columns of the antenna port array as pilot ports in each vertical dimension signal transmission period.
- the sending module 103 is further configured to:
- the configuration information of the horizontal dimension reference signal and the vertical dimension reference signal is sent to the receiving end, wherein the configuration information includes a subframe configuration of the horizontal dimension reference signal and the vertical dimension reference signal, and a configuration of the horizontal dimension pilot port and the vertical dimension pilot port.
- the subframe determining module 101 and the pilot port determining module 102 may be a processor, and the sending module 103 may be a signal transmitting and receiving device including a transmitting and receiving antenna, etc., at this time, as shown in FIG. 10B, the embodiment of the present invention
- a network side device for transmitting a reference signal including:
- the first processor 1010 is configured to determine a subframe for carrying the reference signal, and determine a pilot port of the reference signal.
- the first signal transceiver 1020 is configured to send the reference signal configured in the pilot port in the determined subframe.
- all the determined pilot ports include at least one horizontal dimension pilot port and one column of vertical dimension pilot ports, and the reference signal configured in the horizontal dimension pilot port is a horizontal dimension reference signal, and the vertical dimension pilot port is configured in the vertical dimension.
- the reference signal is a vertical dimension reference signal.
- the first processor 1010 is configured to:
- each row of pilot ports is used as a row of horizontal dimension pilot ports and each column of pilot ports as a column of vertical dimension pilot ports;
- the antenna virtualization processing is performed to obtain one row and one column of pilot ports that need to be configured with reference signals, and the row pilot port is used as a horizontal dimension pilot port and the column pilot port is used as a vertical dimension pilot port.
- the number of pilot ports of one row is M
- the number of pilot ports of the column is N.
- the first processor 1010 is further configured to:
- the CSI-RS configuration includes: a CSI-RS transmission period, a subframe offset, and a time-frequency domain location.
- the first processor 1010 is further configured to:
- Different CSI-RS configurations are respectively configured as reference signals of different horizontal horizontal pilot ports and reference signals of corresponding vertical dimension pilot ports;
- Different CSI-RS configurations are configured as reference signals for different column vertical dimension pilot ports and reference signals for corresponding horizontal dimension pilot ports.
- the first processor 1010 is further configured to:
- the first processor 1010 is specifically configured to:
- the M+N is not greater than the maximum number of CSI-RS configurable ports defined in the 3GPP standard, and the port number assigned to each pilot port is different, the same CSI-RS configuration is used as each horizontal dimension.
- the first processor 1010 is further configured to:
- Different CSI-RS configurations are used as the reference signal of the horizontal dimension pilot port and the reference signal of the vertical dimension pilot port.
- the first processor 1010 is further configured to:
- the antenna virtualization processing is used to obtain one row and one column of pilot ports that need to be configured with reference signals, and
- the pilot port of the row is used as the horizontal dimension pilot port and the column pilot port is used as the vertical dimension pilot port; wherein, the number of pilot ports of one row is M, and the number of pilot ports of the column is N.
- the first signal transceiver 1020 is further configured to:
- the first processor 1010 is further configured to:
- the network side selects different rows from all rows of the antenna port array as pilot ports in each horizontal dimension signal transmission period
- the network side selects different columns from all the columns of the antenna port array as pilot ports in each vertical dimension signal transmission period.
- the first signal transceiver 1020 is further configured to:
- the configuration information of the horizontal dimension reference signal and the vertical dimension reference signal is sent to the receiving end, wherein the configuration information includes a subframe configuration of the horizontal dimension reference signal and the vertical dimension reference signal, and a configuration of the horizontal dimension pilot port and the vertical dimension pilot port.
- the embodiment of the present invention further provides a receiving end device for receiving a reference signal. Since the principle of the problem is solved by the receiving end device is similar to the method for receiving the reference signal, the implementation of the receiving end device may be referred to. The implementation of the method of receiving the reference signal will not be repeated here.
- a receiving end device for receiving a reference signal includes:
- the receiving module 111 is configured to receive a reference signal configured in a pilot port sent by the network side, where the pilot port includes at least one horizontal dimension pilot port and one vertical dimension pilot port, and is configured in the horizontal dimension pilot port.
- the reference signal is a horizontal dimension reference signal
- the reference signal configured in the vertical dimension pilot port is a vertical dimension reference signal;
- the channel estimation module 112 is configured to separately estimate channel information of the horizontal dimension pilot port and channel information of the vertical dimension pilot port according to the horizontal dimension reference signal and the vertical dimension reference signal.
- the receiving module 111 is further configured to:
- Configuration Receiving configuration information of a horizontal dimension reference signal and a vertical dimension reference signal sent by the network side, where the configuration information includes a subframe configuration of the horizontal dimension reference signal and the vertical dimension reference signal, and a horizontal dimension pilot port and a vertical dimension pilot port.
- the receiving module 111 may be a signal transmitting and receiving device including a transmitting and receiving antenna
- the channel estimating module 112 may be a processor.
- the receiving reference signal is provided by the embodiment of the present invention.
- Receiver device including:
- the second signal transceiver device 1110 is configured to receive a reference signal configured in a pilot port sent by the network side, where the pilot port includes at least one horizontal dimension pilot port and one vertical dimension pilot port, and the horizontal dimension pilot port
- the reference signal configured in the horizontal dimension reference signal is a vertical dimension reference signal
- the second processor 1120 is configured to estimate a horizontal dimension according to the horizontal dimension reference signal and the vertical dimension reference signal respectively.
- Channel information of the pilot port and channel information of the vertical dimension pilot port is configured to estimate a horizontal dimension according to the horizontal dimension reference signal and the vertical dimension reference signal respectively.
- the second signal transmitting and receiving device 1110 is further configured to:
- the information includes a subframe configuration of a horizontal dimension reference signal and a vertical dimension reference signal, and a configuration of a horizontal dimension pilot port and a vertical dimension pilot port.
- the network side device in the embodiment of the present invention may be a base station, a low power sending node, and the like; the receiving end device may be a UE, a relay, or the like.
- a system for transmitting a reference signal is also provided in the embodiment of the present invention. Since the principle of solving the problem is similar to the method for receiving and transmitting a reference signal, the implementation of the system can be referred to the implementation of the foregoing method. , the repetition will not be repeated.
- a system for transmitting a reference signal includes:
- the network side device 120 is configured to determine a subframe used to carry the reference signal, determine a pilot port of the reference signal, and send a reference signal configured in the pilot port in the determined subframe.
- the receiving end device 130 is configured to receive a reference signal configured in a pilot port sent by the network side device 120, and separately estimate channel information and vertical dimension of the horizontal dimension pilot port according to the horizontal dimension reference signal and the vertical dimension reference signal.
- All the pilot ports include at least one horizontal dimension pilot port and one vertical dimension pilot port, and the reference signal configured in the horizontal dimension pilot port is a horizontal dimension reference signal, and the reference signal configured in the vertical dimension pilot port is Vertical dimension reference signal.
- Embodiment 1 The horizontal dimension reference signal and the vertical dimension reference signal are configured in different subframes, and are periodically configured to reuse the CSI-RS reference signal (ie, the configuration information of the CSI-RS defined in the 3GPP standard, For configuration information such as the transmission period and the subframe offset, the horizontal dimension reference signal and the vertical dimension reference signal are configured, and the horizontal dimension reference signal and the vertical dimension reference signal can be mapped to the same or different frequency domain resources;
- the signal and the vertical dimension reference signal are configured with the same transmission period P and different subframe offset ⁇ (subframe offset of the horizontal dimension reference signal), ⁇ (subframe offset of the vertical dimension reference signal);
- the horizontal dimension pilot port can be determined by using a fixed antenna virtualization weight, or any row in the antenna array can be selected as a horizontal dimension pilot port; likewise, the vertical dimension pilot port can be fixed by a fixed antenna. For the weight determination, any column in the antenna array can also be selected as the vertical dimension pilot port.
- the network side notifies the receiving end of the configuration information of the horizontal dimension reference signal and the vertical dimension reference signal, where the configuration information includes the resource configuration and the subframe configuration information of the horizontal dimension reference signal and the vertical dimension reference signal, and may further include indicating to belong to the horizontal dimension reference.
- Embodiment 2 The horizontal dimension reference signal and the vertical dimension reference signal are periodically configured to reuse the CSI-RS reference signal, The horizontal dimension reference signal and the vertical dimension reference signal use the same or different frequency domain resources; it is assumed that the horizontal dimension reference signal and the vertical dimension reference signal are configured with different transmission periods and the same subframe offset, that is, the transmission of the horizontal dimension reference signal Cycle is
- the vertical dimension reference signal transmission period is P V
- the subframe offset is ⁇ , where , [Kappa] is a positive integer; in the first subframe configuration ⁇ + ⁇ dimensional reference signal level, the first ⁇ + ⁇ ⁇ + ⁇ subframe configuration dimensional reference level signal, ... ..., the first ⁇ + ⁇ ⁇ ⁇ + ⁇ subframes are configured with horizontal dimension reference signals and vertical dimension reference signals, and so on; horizontal dimension pilot ports can be determined by fixed antenna virtualization weights, or any row in the antenna array can be selected as horizontal dimension guides. Similarly, the vertical dimension pilot port can be determined by using a fixed antenna virtualization weight, or any column in the antenna array can be selected as a vertical dimension pilot port.
- the network side notifies the receiving end of the configuration information of the horizontal dimension reference signal and the vertical dimension reference signal, where the configuration information includes the resource configuration and the subframe configuration information of the horizontal dimension reference signal and the vertical dimension reference signal, and may further include indicating to belong to the horizontal dimension reference.
- Embodiment 3 The horizontal dimension reference signal and the vertical dimension reference signal are configured in different subframes, and are periodically configured to reuse the CSI-RS reference signal, and the horizontal dimension reference signal and the vertical dimension reference signal are used with the same or different frequencies. Domain resource; It is assumed that the horizontal dimension reference signal and the vertical dimension reference signal are configured with different transmission periods and different subframe offsets, that is, the transmission period of the horizontal dimension reference signal is, the transmission period of the vertical dimension reference signal is, and the horizontal dimension reference signal is The subframe offset is ⁇ , and the subframe offset of the vertical dimension reference signal is ⁇ , where , ⁇ is a positive integer;
- the first ⁇ + ⁇ ⁇ + ⁇ ⁇ subframes arranged horizontal dimension reference signal, ..., in the n + K 5 H + ⁇ H subframes dimensional configuration level a reference signal, configuring a vertical dimension reference signal in the n + K 5 H + ⁇ V subframes, and so on; wherein ⁇ is a positive integer;
- the horizontal dimension pilot port can be determined by using a fixed antenna virtualization weight, or any row in the antenna array can be selected as a horizontal dimension pilot port; likewise, the vertical dimension pilot port can be fixed antenna virtualization. For the weight determination, any column in the antenna array can also be selected as the vertical dimension pilot end.
- the network side notifies the receiving end of the configuration information of the horizontal dimension reference signal and the vertical dimension reference signal, where the configuration information includes the resource configuration and the subframe configuration information of the horizontal dimension reference signal and the vertical dimension reference signal, and may further include indicating to belong to the horizontal dimension reference.
- embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present invention can be embodied in the form of a computer program product embodied on one or more computer-usable storage interfaces (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program code.
- computer-usable storage interfaces including but not limited to disk storage, CD-ROM, optical storage, etc.
- 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.
- the vertical dimension reference signal can be transmitted, the dynamic 3D beamforming technology can be implemented, and the cell edge user equipment throughput and the average throughput are improved.
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Abstract
本发明涉及无线通信技术领域,特别涉及一种传输参考信号的方法、装置及***,用于解决现有技术中不能支持垂直维信道的估计,无法支持3D波束赋形的问题,本发明实施例方法包括:网络侧确定用于承载参考信号的子帧(31),确定参考信号的导频端口(32),并在确定的子帧中发送导频端口中配置的参考信号;其中,所有导频端口至少包括一行水平维导频端口和一列垂直维导频端口,水平维导频端口中配置的参考信号为水平维参考信号,垂直维导频端口中配置的参考信号为垂直维参考信号(33)。本发明实施例由于能够发送垂直维参考信号,可以实现对垂直维导频端口的信道估计,可以实现动态3D波束赋型技术。
Description
一种传输参考信号的方法、 装置及*** 本申请要求在 2012年 08月 30 日提交中国专利局、 申请号为 201210316659.9、 发明 名称为"一种传输参考信号的方法、 装置及***"的中国专利申请的优先权, 其全部内容通 过引用结合在本申请中。 技术领域
本发明涉及无线通信技术领域, 特别涉及一种传输参考信号的方法、 装置及***。 背景技术
目前, 第三代移动通信标准化伙伴项目 ( 3rd Generation Partnership Project, 3 GPP )的 长期演进( Long Term Evolution, LTE )标准已经大大提高了小区峰值数据速率, 但小区边 缘速率却远低于 、区峰值速率, 针对这一问题, 展开了大量提高小区边缘用户设备 ( User Equipment, UE )吞吐量和小区平均吞吐量的研究。
LTE ***中, 传统的天线 (antenna ) 阵列在垂直方向的半功率波束宽度 ( Half-Power Beam Width, HPBW ) 比较窄, 且具有固定的下倾角 (即对小区内每个用户设备在垂直方 向上提供固定的波束), 使得相邻小区之间在垂直方向上很难实现波束调度和千扰协调。 通过调整天线的下倾角, 可以在一定程度上提高***性能, 但是下倾角的调整很緩慢, 是 一种三维(3 Dimension , 3D ) 波束赋形 ( Beaming Forming, BF ) 的过渡方式。
3D波束赋形的技术,根据用户设备的位置为每个用户设备产生具有不同下倾角的细窄 波束, 在水平方向和垂直方向都进行波束赋形, 能够从根本上克服传统天线的不足, 提高 目标用户的信噪比, 从而很大程度地提升了蜂窝***的性能。 目前, 业界已出现能够对每 行和 /或每列进行独立控制的有源天线, 传统的 2D天线仅在水平维上有权值端口, 在垂直 为上没有端口, 而有源天线***中增加了天线垂直方向上的控制端口, 能够满足垂直方向 上波束赋形的需要, 因此, 为 3D波束赋形技术的研究提供必要的硬件支撑。
为了支持 3D波束赋形的传输, 需要相应的信道状态信息的反馈, 例如, 信道盾量指 示 ( Channel Quality Indicator, CQI )信息、 预编码 巨阵指示 ( Precoding Matrix Indicator, PMI )信息及秩指示(Rank Indication, RI )信息; 其中, CQI信息用于用户调度、 调整调 制编码方案 (Modulation and Coding Scheme , MCS ) 和 /或多用户多入多出 ( Multi User-Multiple Input Multiple Output, MU-MIMO ) 配对等; PMI信息用于确定波束赋形、 多用户调度和 MU-MIMO配对等; RI信息可以用于确定数据传输所使用的层数等。
上述信道状态信息都需要基于信道估计进行计算, 而对信道进行估计, 又需要获取相 应的参考信号 (Reference Signal, RS )。 参考信号也称为导频信号, 是由发射端提供给接
收端, 且用于信道估计或信道探测的一种已知信号。 目前 LTE***中的用于信道估计的参 考信号包括小区专属参考信号 (Cell-specific Reference Signals, CRS )和信道状态信息参 考信号 (Channel State Information-Reference Signals, CSI-RS )。 其中, CRS又称为下行公 共参考信号或小区公共导频, 可在每一个下行子帧内进行发送。
图 1为现有常规循环前缀(Circular Prefix, CP )模式下的 CRS映射示意图, 每个下 行子帧都配置 CRS。 图 1 中的 R0、 Rl、 R2及 R3分别表示天线端口 0、 1、 2、 3配置的 CRS。 其中, (a ) 为只存在一个天线端口 0的情况下, 对应的 CRS配置方式示意图; (b ) 和(c ) 为存在两个天线端口 0和 1 的情况下, 对应的 CRS配置方式示意图; (d )、 (e )、 ( f)和(g ) 为存在四个天线端口 0、 1、 2和 3的情况下, 对应的 CRS配置方式示意图。 对于图 1中的每个子图来说,其纵轴方向表示频域,每一个小格代表一个资源粒子(Resource Element, RE ); 横轴方向表示一个子帧, 每一个子帧内包括两个时隙 (奇数时隙和偶数时 隙), 每一个时隙内又包括 7个符号 ( 1=0~6 )。
CSI-RS是 LTE***版本 10 ( Release 10, Rel-10 ) 中定义的参考信号, 其为周期性配 置的下行导频, 标准中定义 CSI-RS在端口 15〜天线端口 22中发射, 现有标准中定义了多 种 CSI配置方式; 图 2为现有 CP模式下, 釆用 CSI配置 0 ( configuration 0 )的 CSI-RS映 射示意图, 图 2中的 R15 R22分别表示端口 15〜天线端口 22配置的 CSI-RS。 CSI-RS的子 帧配置如表 1所示。
表 1
基于 3D波束赋形的传输特性,接收端需要对水平维信道和垂直维信道进行信道估计, 才能分别计算出水平维信道和垂直维信道对应的 PMI信息反馈到发射端, 进而进行 3D波 束赋形处理。 接收端进行信道估计, 则需要知道参考信号的配置, 即导频信息的配置。 而 现有的参考信号的配置只包含水平维参考信号的配置, 因此,只能支持水平维信道的估计, 无法支持垂直维信道的估计, 也无法支持 3D波束赋形。
综上所述, 现有的参考信号的配置只包含水平维参考信号的配置, 因此, 只能支持水
平维信道的估计, 而不能支持垂直维信道的估计, 进而无法得到垂直维的信道信息, 也无 法支持 3D波束赋形。 发明内容 本发明实施例提供了一种传输参考信号的方法、 装置及***, 能够发送垂直维参考信 号。
本发明实施例提供了一种发送参考信号的方法, 包括:
网络侧确定用于承载参考信号的子帧;
所述网络侧确定所述参考信号的导频端口;
所述网络侧在确定的子帧中发送所述导频端口中配置的参考信号;
其中, 确定的所有导频端口中至少包括一行水平维导频端口和一列垂直维导频端口, 水平维导频端口中配置的参考信号为水平维参考信号, 垂直维导频端口中配置的参考信号 为垂直维参考信号。
本发明实施例提供了接收参考信号的方法, 包括:
接收端接收来自网络侧发送的导频端口中配置的参考信号, 其中, 所有导频端口中至 少包括一行水平维导频端口和一列垂直维导频端口, 水平维导频端口中配置的参考信号为 水平维参考信号, 垂直维导频端口中配置的参考信号为垂直维参考信号;
所述接收端根据所述水平维参考信号和所述垂直维参考信号, 分别估计水平维导频端 口的信道信息和垂直维导频端口的信道信息。
本发明实施例提供了一种发送参考信号的网络侧设备, 包括:
子帧确定模块, 用于确定用于承载参考信号的子帧;
导频端口确定模块, 用于确定所述参考信号的导频端口;
发送模块, 用于在确定的子帧中发送所述导频端口中配置的参考信号;
其中, 确定的所有导频端口中至少包括一行水平维导频端口和一列垂直维导频端口, 水平维导频端口中配置的参考信号为水平维参考信号, 垂直维导频端口中配置的参考信号 为垂直维参考信号。
本发明实施例提供了一种接收参考信号的接收端设备, 包括:
接收模块, 用于接收来自网络侧发送的导频端口中配置的参考信号, 其中, 导频端口 至少包括一行水平维导频端口和一列垂直维导频端口, 水平维导频端口中配置的参考信号 为水平维参考信号, 垂直维导频端口中配置的参考信号为垂直维参考信号;
信道估计模块, 用于根据所述水平维参考信号和所述垂直维参考信号, 分别估计水平 维导频端口的信道信息和垂直维导频端口的信道信息。
本发明实施例提供了一种传输参考信号的***, 包括:
网络侧设备, 用于确定用于承载参考信号的子帧; 确定所述参考信号的导频端口; 及 在确定的子帧中发送所述导频端口中配置的参考信号;
接收端设备, 用于接收来自网络侧发送的导频端口中配置的参考信号, 并根据所述水 平维参考信号和所述垂直维参考信号, 分别估计水平维导频端口的信道信息和垂直维导频 端口的信道信息;
其中, 所有导频端口中至少包括一行水平维导频端口和一列垂直维导频端口, 水平维 导频端口中配置的参考信号为水平维参考信号, 垂直维导频端口中配置的参考信号为垂直 维参考信号。
本发明实施例由于能够发送垂直维参考信号, 从而使接收端能够根据垂直维参考信号 对垂直维导频端口的信道进行估计, 进而可以实现动态 3D波束赋型技术, 提高了小区边 缘用户设备吞吐量和平均吞吐量。 附图说明 图 1为背景技术中在 CP模式下的 CRS映射示意图;
图 2为背景技术中在 CP模式下的一种 CSI-RS映射示意图;
图 3为本发明实施例发送参考信号的方法的流程示意图;
图 4A为本发明实施例水平维参考信号和垂直维参考信号配置在同一子帧示意图; 图 4B为本发明实施例水平维参考信号和垂直维参考信号配置在不同子帧示意图; 图 5A为本发明实施例第一种确定的导频端口的示意图;
图 5B为本发明实施例为第一种确定的导频端口分配端口号的第一实例示意图; 图 5C为本发明实施例为第一种确定的导频端口分配端口号的第二实例示意图; 图 5D为本发明实施例为第一种确定的导频端口分配端口号的第三实例示意图; 图 6A为本发明实施例第二种确定的导频端口的示意图;
图 6B为本发明实施例为第二种确定的导频端口分配端口号的第一实例示意图; 图 6C为本发明实施例为第二种确定的导频端口分配端口号的第二实例示意图; 图 7A〜图 7B为本发明实施例周期性配置水平维参考信号的实例示意图;
图 8A〜图 8D为本发明实施例周期性配置垂直维参考信号的实例示意图;
图 9为本发明实施例接收参考信号的方法的流程示意图;
图 10A为本发明实施例发送参考信号的网络侧设备的功能结构示意图;
图 10B为本发明实施例发送参考信号的网络侧设备的实体结构示意图;
图 11A为本发明实施例接收参考信号的网络侧设备的功能结构示意图;
图 11B为本发明实施例接收参考信号的网络侧设备的实体结构示意图;
图 12为本发明实施例传输参考信号的***的结构示意图。
具体实施方式 本发明实施例由于能够发送垂直维参考信号, 从而可以实现动态 3D波束赋型技术, 提高了小区边缘用户设备吞吐量和平均吞吐量。
下面结合说明书附图对本发明实施例作进一步详细描述。
如图 3所示, 本发明实施例发送参考信号的方法, 包括以下步骤:
步骤 31、 网络侧确定用于承载参考信号的子帧;
步骤 32、 网络侧确定参考信号的导频端口;
步骤 33、 网络侧在确定的子帧中发送导频端口中配置的参考信号;
其中, 确定的所有导频端口中至少包括一行水平维导频端口和一列垂直维导频端口, 水平维导频端口中配置的参考信号为水平维参考信号, 垂直维导频端口中配置的参考信号 为垂直维参考信号。
需要说明的是, 本发明实施例所说的导频端口是指用于配置参考信号的天线端口。 进一步, 小区所支持的天线端口呈阵列排布, 其中, 天线端口阵列中的行表示水平方 向且包含 M个天线端口, 列表示垂直方向且包含 N个天线端口, M和 N均为不小于 1的 正整数。
优选的, M的取值集合为 { 1,2,4,8} , N的取值集合为 { 1,2,4,8}。
优选的, 本发明实施例中的水平维参考信号和所述垂直维参考信号为 3GPP标准中定 义的信道状态指示参考信号 CSI-RS。
进一步, 步骤 31中网络侧确定用于承载参考信号的子帧包括以下两种方式: 方式一: 用于承载水平维参考信号的子帧和用于承载垂直维参考信号的子帧为同一个 子帧, 如图 4A所示;
优选的, 水平维参考信号和垂直维参考信号可以釆用周期性配置或触发配置; 其中, 水平维参考信号和垂直维参考信号的发送周期, 及确定的用于承载水平维参考信号和垂直 维参考信号的子帧, 可由网络侧和接收端双方约定, 也可以由网络侧通过高层信令或物理 层控制信令通知给接收端;
若水平维参考信号和垂直维参考信号釆用周期性配置, 则网络侧可以在第一次发送参 考信号之前, 通知接收端该水平维参考信号和垂直维参考信号的发发送周期和子帧偏移 量;
若水平维参考信号和垂直维参考信号釆用触发配置, 则网络侧可以在每次发送参考信 号之前, 通知接收端用于承载水平维参考信号和垂直维参考信号的子帧。
方式二: 用于承载水平维参考信号的子帧和用于承载垂直维参考信号的子帧为不同的 子帧, 如图 4B所示;
进一步, 水平维参考信号和垂直维参考信号分别配置在不同子帧的相同或不同频域资 源上。
优选的, 水平维参考信号和 /或垂直维参考信号可以釆用周期性配置, 也可以釆用触发 配置;
若水平维参考信号和 /或垂直维参考信号釆用周期性配置,水平维参考信号发送周期和 /或垂直维参考信号发送周期, 可由网络侧和接收端双方约定, 也可以由网络侧通过高层信 令或物理层控制信令通知给接收端;
若水平维参考信号和 /或垂直维参考信号釆用触发配置,用于承载水平维参考信号的子 帧和用于承载垂直维参考信号的子帧, 可由网络侧和接收端双方约定, 也可以由网络侧通 过高层信令或物理层控制信令通知给接收端;
水平维参考信号发送周期与垂直维参考信号发送周期包括下列三种情况:
一、 水平维参考信号发送周期与垂直维参考信号发送周期相同;
二、 垂直维参考信号发送周期是水平维参考信号发送周期的 J倍, 其中, J为不小于 1 的正整数; J可以是固定值, 也可以是从给定取值集合中选取的值;
需要说明的是, J 的值可由网络侧和接收端双方约定, 也可以由网络侧通过高层信令 或物理层控制信令通知给接收端;
三、 水平维参考信号发送周期是垂直维参考信号发送周期的 K倍, 其中, K为不小于 1的正整数; K可以是固定值, 也可以是从给定取值集合中选取的值;
需要说明的是, K的值可由网络侧和接收端双方约定, 也可以由网络侧通过高层信令 或物理层控制信令通知给接收端。
若水平维参考信号和 /或垂直维参考信号釆用周期性配置,则网络侧可以在第一次发送 参考信号之前,通知接收端该水平维参考信号和 /或垂直维参考信号的发送周期和子帧偏移 量;
若水平维参考信号和 /或垂直维参考信号釆用触发配置,则网络侧可以在每次发送参考 信号之前, 通知接收端为水平维参考信号和 /或垂直维参考信号配置的子帧。
需要说明的是, 为了兼容现有的 3GPP标准, 本发明实施例中水平维参考信号可以釆 用 3GPP 36.211标准中定义的 CSI-RS的配置,而垂直维参考信号可以釆用周期性配置或触 发配置, 优选的, 网络侧可以在每个下行子帧内都配置垂直维参考信号。
具体的, 垂直维参考信号釆用周期性配置时, 垂直维参考信号的子帧配置可以重用 3GPP 36.211标准中的 CSI-RS配置以确定垂直维参考信号的发送周期、 子帧偏移及时频域 位置;
垂直维参考信号的发送周期和子帧偏移可以独立配置, 也可以和水平维参考信号进行 联合配置, 例如, 如为了避免在同一子帧配置, 垂直维参考信号的子帧偏移可设置为与水
平维参考信号的子帧偏移不同。
下面分为两种情况对步骤 32 中确定参考信号的导频端口进行详细说明, 其中, 确定 的水平维导频端口的端口号及水平维参考信号的 CSI-RS 配置和垂直维导频端口的端口号 及垂直维参考信号的 CSI-RS 配置, 可由网络侧与接收端双方约定, 也可以由网络侧通过 高层信令或物理层控制信令通知给接收端。
第一种情况、 承载水平维参考信号的子帧与承载垂直维参考信号的子帧为同一子帧, 步骤 32 # ^据以下方式中一种确定参考信号的导频端口:
方式 A、 网络侧将天线端口阵列中的所有天线端口都配置为导频端口, 并将每一行导 频端口作为一行水平维导频端口及每一列导频端口作为一列垂直维导频端口, 如图 5A所 示, 以天线端口阵列中每行包括 4个天线端口, 每列包括 2个天线端口为例, 则确定的导 频端口的个数为 8;
进一步, 若 Μ χ Ν小于 3GPP标准中定义的 CSI-RS可配置的最大端口数, 方式 A又 包括以下三种方式:
方式 Al、 网络侧将同一种 CSI-RS配置作为每一个水平维导频端口的参考信号和每一 个垂直维导频端口的参考信号的配置; 其中, CSI-RS配置包括: CSI-RS配置的发送周期、 子帧偏移量及时频域位置。
其中,网络侧可以从 3GPP标准中定义的 CSI-RS可配置的端口号中选择不同的端口号 分配给每个导频端口,3GPP标准中定义的用于配置 CSI-RS的天线端口为端口 15〜端口 22。
具体的, 网络侧可以从端口号 15 22中任意选取 Μ χ N个, 分别作为每个导频端口的 端口号。
本发明实施例中釆用的 CSI-RS配置是现有 3GPP 36.211协议中定义的, 3GPP 36.211 协议中定义了多种 CSI-RS配置, 此处不再赘述。
优选的, 网络侧为导频端口分配的端口号为 15~(15+Μ χ Ν-1)。
进一步, 水平维导频端口和垂直维导频端口的排列方式优选为以下两种形式: 第一种排列方式: 第 i行水平维导频端口的端口号分别为 15+(i-l) x M~15+i x M-l ,其 中, i为整数, 且 i的取值为 1~N; 相应的, 每一列垂直维导频端口的端口号是根据每行水 平维导频端口确定的, 即: 第一列垂直维导频端口的端口号依次为 15、 ( 15+M )、
( 15+2M ) ( 15+ ( N-1 ) χ Μ ), 第二列垂直维导频端口的端口号依次为 (15+1 )、
( 15+1+M )、 ( 15+1+2M ), …… , ( 15+1+ ( Ν-1 ) χ Μ ) …… , 以此类推, 确定所有列垂 直维导频端口;
以图 5Α所示的导频端口为例进行说明,网络侧为导频端口配置的端口号如图 5Β所示, 则网络侧确定导频端口 15、 导频端口 16、 导频端口 17和导频端口 18为第一行水平维导 频端口, 相应的, 接收端在接收到每个导频端口中配置的参考信号后, 确定导频端口 15、
导频端口 16、 导频端口 17和导频端口 18的参考信号为第一行水平维参考信号, 并根据第 一行水平维参考信号估计第一行水平维导频端口的信道信息; 其他行水平维导频端口类 似, 此处不再赘述;
网络侧确定导频端口 15和导频端口 19为第一列垂直维导频端口, 相应的, 接收端在 接收到每个导频端口中配置的参考信号后, 确定导频端口 15和导频端口 19的参考信号为 第一列垂直维参考信号, 并根据第一列垂直维参考信号估计第一列垂直维导频端口的信道 信息; 其他列垂直维导频端口类似, 此处不再赘述。
第二种排列方式: 第 j列垂直维导频端口的端口号分别为 15+G-l) x N~15+j χ Ν-1 , 其 中, j为整数, 且 j 的取值为 1~M; 相应的, 每行水平维导频端口的端口号是根据每列垂 直维导频端口的端口号确定的, 即: 第一行水平维导频端口的端口号依次为 15、 (15+N )、
( 15+2N ) ( 15+ ( M-1 ) x N ); 第二行水平维导频端口的端口号依次为 (15+1 )、
( 15+1+N )、 ( 15+1+2N )、 ……、 ( 15+1+ ( M- 1 ) χ Ν ), 以此类推, 以确定所有行水平维 导频端口。
当然, 除了上述两种优选的排列方式, 水平维导频端口和垂直维导频端口还可以釆用 其他排列方式, 如随机排列等; 其中, 水平维导频端口和垂直维导频端口的排列方式可以 是由网络侧和接收端双方约定的, 也可以是由网络侧确定, 并通过高层信令或物理层控制 信令等通知给接收端。
方式 Α2、 网络侧将不同的 CSI-RS配置分别作为不同行水平维导频端口的参考信号和 对应的垂直维导频端口的参考信号的配置。
其中, 网络侧可以为每一行导频端口分配相同的端口号, 则同一列导频端口的端口号 相同。
具体的, 网络侧可以从端口号 15 22中任意选取 Μ个,分别作为每一行导频端口的端 口号。
优选的, 网络侧为每一行导频端口分配的端口号为 15~(15+Μ-1) , 其中, 每一行水平 维导频端口的端口号为 15~(15+Μ-1) , 则第 j 列垂直维导频端口的端口号都为(15+j-l) , j 为整数, 且 j的取值为 1~M, 即: 第一种 CSI-RS配置的端口 15、 第二种 CSI-RS配置的端 口 15 第 M种 CSI-RS配置的端口 15为第一列垂直维导频端口; 第一种 CSI-RS配 置的端口 16、 第二种 CSI-RS配置的端口 16 第 M种 CSI-RS配置的端口 16为第 二列垂直维导频端口; 以此类推, 以得到所有列垂直维导频端口。
仍以图 5 A所示的导频端口为例进行说明, 网络侧为导频端口配置的端口号如图 5C 所示, 则网络侧确定第一种 CSI-RS配置的导频端口 15、 导频端口 16、 导频端口 17和导 频端口 18 为第一行水平维导频端口, 相应的, 接收端在接收到每个导频端口中配置的参 考信号后, 确定第一种 CSI-RS配置的导频端口 15、 导频端口 16、 导频端口 17和导频端
口 18 的参考信号为第一行水平维参考信号, 并根据第一行水平维参考信号估计第一行水 平维导频端口的信道信息; 其他行水平维导频端口类似, 此处不再赘述;
网络侧确定第一种 CSI-RS配置的导频端口 15和第二种 CSI-RS配置的导频端口 15为 第一列垂直维导频端口, 相应的, 接收端在接收到每个导频端口中配置的参考信号后, 确 定第一种 CSI-RS配置的导频端口 15和第二种 CSI-RS配置的导频端口 15的参考信号为第 一列垂直维参考信号, 并根据第一列垂直维参考信号估计第一列垂直维导频端口的信道信 息; 其他列垂直维导频端口类似, 此处不再赘述。
当然, 导频端口配置的端口号的分配还可以釆用其他方式, 如随机分配等; 其中, 水 平维导频端口和垂直维导频端口的排列方式可以是由网络侧和接收端双方约定的, 也可以 是由网络侧确定, 并通过高层信令或物理层控制信令等通知给接收端。
方式 A3、 网络侧将不同的 CSI-RS配置作为不同列垂直维导频端口的参考信号和对应 的水平维导频端口的参考信号的配置。
其中, 网络侧可以为每一列导频端口分配相同的端口号, 则同一行导频端口的端口号 相同。
具体的, 网络侧可以从端口号 15 22中任意选取 N个, 分别作为每一列导频端口的端 口号。
优选的, 网络侧为每一列导频端口分配的端口号为 15~(15+N-1), 其中, 每一列垂直 维导频端口的端口号为 15~(15+Ν-1) , 则第 i行水平维导频端口的端口号都为(15+i-l), i 为整数, 且 i的取值为 1~N, 即: 第一种 CSI-RS配置的端口 15、 第二种 CSI-RS配置的端 口 15 第 N种 CSI-RS配置的端口 15为第一行水平维导频端口; 第一种 CSI-RS配 置的端口 16、 第二种 CSI-RS配置的端口 16 第 N种 CSI-RS配置的端口 16为第二 行水平维导频端口; 以此类推, 得到所有行水平维导频端口。
仍以图 5 A所示的导频端口为例进行说明, 网络侧为导频端口配置的端口号如图 5D 所示, 则网络侧确定第一种 CSI-RS配置的导频端口 15和导频端口 16为第一列垂直维导 频端口, 相应的, 接收端在接收到每个导频端口中配置的参考信号后, 确定第一种 CSI-RS 配置的导频端口 15和导频端口 16的参考信号为第一列垂直维参考信号, 并根据第一列垂 直维参考信号估计第一列垂直维导频端口的信道信息; 其他列垂直维导频端口类似, 此处 不再赘述;
网络侧确定第一种 CSI-RS配置的导频端口 15、 第二种 CSI-RS配置的导频端口 15、 第三种 CSI-RS配置的导频端口 15及第四种 CSI-RS配置的导频端口 15为第一行水平维导 频端口, 相应的, 接收端在接收到每个导频端口中配置的参考信号后, 确定第一种 CSI-RS 配置的导频端口 15、 第二种 CSI-RS配置的导频端口 15、 第三种 CSI-RS配置的导频端口
15及第四种 CSI-RS配置的导频端口 15的参考信号为第一行水平维参考信号,并根据第一
行水平维参考信号估计第一行水平维导频端口的信道信息; 其他行水平维导频端口类似, 此处不再赘述。
当然, 导频端口配置的端口号的分配还可以釆用其他方式, 如随机分配等; 其中, 水 平维导频端口和垂直维导频端口的排列方式可以是由网络侧和接收端双方约定的, 也可以 是由网络侧确定, 并通过高层信令或物理层控制信令等通知给接收端。
进一步,若 M X N大于 CSI-RS可配置的最大端口数,则网络侧可根据方式 A2和方式 A3确定水平维导频端口和垂直维导频端口。
方法 B、 网络侧根据天线端口阵列, 釆用天线虚拟化处理, 得到一行和一列需要配置 参考信号的导频端口, 并将该行导频端口作为水平维导频端口及该列导频端口作为垂直维 导频端口; 其中, 一行导频端口的个数为 M, —列导频端口的个数为 N, 共需要 M+N个 导频端口, 如图 6A所示, 以虚拟化处理后得到的一行导频端口的个数为 4个, 一列导频 端口的个数为 2, 则确定的导频端口的个数 6个。
进一步, 网络侧釆用天线虚拟化处理包括以下两种方式:
方式 1、 网络侧从天线端口阵列中, 选择某一行及某一列配置为导频端口; 或者 方式 2、 网络侧釆用固定的天线虚拟化权值进行天线虚拟化处理, 得到一行和一列需 要配置参考信号的导频端口。
进一步, 若 M+N不大于 3GPP标准中定义的 CSI-RS可配置的最大端口数, 方式 B又 包括以下两种方式:
方式 Bl、 网络侧将同一种 CSI-RS配置作为每一个水平维导频端口的参考信号和每一 个垂直维导频端口的参考信号的配置。
其中, 网络侧可以为每个导频端口分配不相同的端口号。
具体的, 网络侧可以从端口号 15 22中任意选取 M+N个, 分别作为每个导频端口的 端口号。
优选的, 网络侧为导频端口分配的端口号为 15~(15+Μ χ Ν-1)。
以图 6 Α所示的导频端口为例进行说明 , 网络侧为导频端口配置的端口号如图 6B所 示, 则网络侧确定导频端口 15、 导频端口 16、 导频端口 17和导频端口 18为水平维导频 端口, 相应的, 接收端在接收到每个导频端口中配置的参考信号后, 确定导频端口 15、 导 频端口 16、 导频端口 17和导频端口 18的 CSI-RS为一行水平维参考信号, 并根据该行水 平维参考信号估计该行水平维导频端口的信道信息;
网络侧确定导频端口 19和导频端口 20为第一列垂直维导频端口, 相应的, 接收端在 接收到每个导频端口中配置的参考信号后, 确定导频端口 19和导频端口 20的参考信号为 一列垂直维参考信号, 并根据该列垂直维参考信号估计该列垂直维导频端口的信道信息。
当然, 导频端口配置的端口号的分配还可以釆用其他方式, 如随机分配等; 其中, 水
平维导频端口和垂直维导频端口的排列方式可以是由网络侧和接收端双方约定的, 也可以 是由网络侧确定, 并通过高层信令或物理层控制信令等通知给接收端。
方式 B2、 网络侧将不同的 CSI-RS配置分别作为水平维导频端口的参考信号和垂直维 导频端口的参考信号的配置。
其中,网络侧可以从端口号 15 22中任意选取 M个分别作为水平维导频端口的端口号, 从端口号 15 22中任意选取 N个分别作为每个垂直维导频端口的端口号。
优选的, 网络侧为水平维导频端口分配的端口号为 15~(15+M-1), 且为垂直维导频端 口分配的端口号为 15~(15+N-1)。
仍以图 6A所示的导频端口为例进行说明 ,网络侧为导频端口配置的端口号如图 6C所 示, 假设网络侧为水平维参考信号配置的 CSI-RS配置为第一种 CSI-RS配置, 为垂直维参 考信号配置的 CSI-RS配置为第二种 CSI-RS配置, 则网络侧确定第一种 CSI-RS配置的导 频端口 15、 导频端口 16、 导频端口 17和导频端口 18为水平维导频端口, 并 4 据该行水 平维参考信号估计该行水平维导频端口的信道信息;
网络侧确定第二种 CSI-RS配置的导频端口 15和导频端口 16为垂直维导频端口, 相 应的, 接收端在接收到每个导频端口中配置的参考信号后, 确定导频端口 15 和导频端口 16的参考信号为垂直维参考信号,并根据该列垂直维参考信号估计该列垂直维导频端口的 信道信息。
当然, 导频端口配置的端口号的分配还可以釆用其他方式, 此处不再——举例; 其中, 水平维导频端口和垂直维导频端口的排列方式可以是由网络侧和接收端双方约定的, 也可 以是由网络侧确定, 并通过高层信令或物理层控制信令等通知给接收端。
第二种情况、 承载水平维参考信号的子帧与承载垂直维参考信号的子帧为不同子帧, 步骤 32具体包括:
网络侧根据天线端口阵列, 釆用天线虚拟化处理, 得到一行和一列需要配置参考信号 的导频端口, 并将该行导频端口作为水平维导频端口及该列导频端口作为垂直维导频端 口; 其中, 一行导频端口的个数为 M, —列导频端口的个数为^^。
其中, 网络侧可以从端口号 15 22中任意选取 M个,分别作为每个水平维导频端口的 端口号;
网络侧可以从端口号 15 22中任意选取 N个,分别作为每个垂直维导频端口的端口号。 优选的, 网络侧为水平维导频端口分配的端口号为 15~(15+M-1); 网络侧为垂直维导 频端口分配的端口号为 15~(15+N-1)。
需要说明的是, 水平维导频端口和垂直维导频端口的端口号可以是由网络侧和接收端 双方约定的,也可以是由网络侧确定,并通过高层信令或物理层控制信令等通知给接收端。
优选的, 步骤 33中网络侧在确定的子帧中发送导频端口中配置的参考信号包括:
网络侧在每个设定的水平维参考信号发送周期内, 在承载水平维参考信号的子帧中发 送水平维导频端口中配置的参考信号; 和 /或
网络侧在每个设定的垂直维参考信号发送周期内, 在承载垂直维参考信号的子帧中发 送垂直维导频端口中配置的参考信号。
进一步, 垂直维参考信号发送周期与水平维参考信号发送周期相同; 或者
垂直维参考信号发送周期为水平维参考信号发送周期的 J倍, 其中, J为不小于 1的 整数; 或者
水平维参考信号发送周期为垂直维参考信号发送周期的 K倍, 其中, K为不小于 1的 整数。
进一步, 步骤 32 中网络侧确定水平维导频端口和垂直维导频端口又包括以下方法的 一种或组合:
方法 1、 在每个水平维信号发送周期内, 从天线端口阵列的所有行中, 选择不同的行 配置为导频端口;
例如, 在第一个水平维参考信号发射周期内, 选择天线端口阵列中的第一行配置为水 平维导频端口, 如图 7A所示, 相应的, 接收端根据在第一个水平维参考信号发射周期内 接收到的水平维导频端口中配置的参考信号, 进行水平维导频端口的信道估计; 在第二个 水平维参考信号发射周期内, 选择天线端口阵列中的第二行配置为水平维导频端口, 如图 7B所示,相应的,接收端根据在第二个水平维参考信号发射周期内接收到的水平维导频端 口中配置的参考信号, 进行水平维导频端口的信道估计, 以遍历所有水平维信道; 其中, 对天线阵列中的第一行和第二行对应的水平维参考信号进行配置时, 可以配置在相同的资 源, 也可以配置在不同的资源。
方法 2、 在每个垂直维信号发送周期内, 从天线端口阵列的所有列中, 选择不同的列 配置为导频端口。
例如, 在第一个垂直维参考信号发射周期内, 选择天线端口阵列中的第一列配置为垂 直维导频端口, 如图 8A所示, 相应的, 接收端根据在第一个垂直维参考信号发射周期内 接收到的垂直维导频端口中配置的参考信号, 进行垂直维导频端口的信道估计; 在第二个 垂直维参考信号发射周期内 , 选择天线端口阵列中的第二列配置为垂直维导频端口, 如图
8B所示,相应的,接收端根据在第二个垂直维参考信号发射周期内接收到的垂直维导频端 口中配置的参考信号, 进行垂直维导频端口的信道估计; 在第三个垂直维参考信号发射周 期内, 选择天线端口阵列中的第三列配置为垂直维导频端口, 如图 8C所示, 相应的, 接 收端根据在第三个垂直维参考信号发射周期内接收到的垂直维导频端口中配置的参考信 号, 进行垂直维导频端口的信道估计; 在第四个垂直维参考信号发射周期内, 选择天线端 口阵列中的第四列配置为垂直维导频端口, 如图 8D所示, 相应的, 接收端根据在第四个
垂直维参考信号发射周期内接收到的垂直维导频端口中配置的参考信号, 进行垂直维导频 端口的信道估计, 以遍历所有垂直维信道; 其中, 对天线阵列中的每一列对应的垂直维参 考信号进行配置时, 可以配置在相同的资源, 也可以配置在不同的资源。
当然, 网络侧还可以釆用触发配置, 在每个水平维信号发送周期内, 从天线端口阵列 的所有行中, 选择同一行或不同的行配置为导频端口; 在每个垂直维信号发送周期内, 从 天线端口阵列的所有列中, 选择同一列或不同的列配置为导频端口。
优选的, 本发明实施例在步骤 32之后 , 且在步骤 33之前还包括:
网络侧向接收端发送水平维参考信号和垂直维参考信号的配置信息, 以指示接收端根 据水平维参考信号和垂直维参考信号的配置信息确定对应的水平维参考信号和垂直维参 考信号, 其中, 配置信息包括水平维参考信号和垂直维参考信号的子帧配置和水平维导频 端口和垂直维导频端口的配置。
具体的, 在周期性配置情况下, 配置信息包括但不限于下列信息中的一种或组合: 水平维参考信号和垂直维参考信号的导频端口设置、 导频图样(pattern ), 发送周期及 子帧偏移量等;
在触发配置情况下, 配置信息包括但不限于下列信息中的一种或组合:
水平维参考信号和垂直维参考信号的导频端口设置、 导频图样以及发送水平维参考信 号和垂直维参考信号的子帧号或触发条件。
优选的, 网络侧通过高层信令或物理层控制信令发送水平维参考信号和垂直维参考信 号的配置信息。
优选的, 该配置信息还包括指示信息, 该指示信息用于指示所述配置信息中属于水平 维参考信号的配置信息和属于垂直维参考信号的配置信息;
当然, 该配置信息中也可以不包含该指示信息, 接收端设备收到两个维度的参考信号 配置信息即可。
参见图 9, 本发明实施例提供的一种接收参考信号的方法, 该方法包括:
步骤 91、 接收端接收来自网络侧发送的导频端口中配置的参考信号, 其中, 所有导频 端口中至少包括一行水平维导频端口和一列垂直维导频端口, 水平维导频端口中配置的参 考信号为水平维参考信号, 垂直维导频端口中配置的参考信号为垂直维参考信号;
步骤 92、接收端根据水平维参考信号和垂直维参考信号, 分别估计水平维导频端口的 信道信息和垂直维导频端口的信道信息。
由于水平维参考信号的配置和垂直维参考信号的配置与网络侧相同, 此处不再赘述。 进一步, 步骤 91之前, 方法还包括:
接收端接收来自网络侧发送的水平维参考信号和垂直维参考信号的配置信息, 其中, 配置信息包括水平维参考信号和垂直维参考信号的子帧配置和水平维导频端口和垂直维
导频端口的配置。
基于同一发明构思, 本发明实施例中还提供了一种发送参考信号的网络侧设备 , 由于 该网络侧设备解决问题的原理与上述发送参考信号的方法相似, 因此该网络侧设备的实施 可以参见方法的实施, 重复之处不再赘述。
参见图 10A, 本发明实施例提供的一种发送参考信号的网络侧设备, 包括: 子帧确定模块 101 , 用于确定用于承载参考信号的子帧;
导频端口确定模块 102, 用于确定参考信号的导频端口;
发送模块 103 , 用于在确定的子帧中发送导频端口中配置的参考信号;
其中, 确定的所有导频端口中至少包括一行水平维导频端口和一列垂直维导频端口, 水平维导频端口中配置的参考信号为水平维参考信号, 垂直维导频端口中配置的参考信号 为垂直维参考信号。
优选的, 导频端口确定模块 102具体用于:
在承载水平维参考信号的子帧与承载垂直维参考信号的子帧为同一子帧时, 将天线端 口阵列中的所有天线端口配置为导频端口, 并将每一行导频端口作为一行水平维导频端口 及每一列导频端口作为一列垂直维导频端口; 或者
根据天线端口阵列, 釆用天线虚拟化处理, 得到一行和一列需要配置参考信号的导频 端口,并将该行导频端口作为水平维导频端口及该列导频端口作为垂直维导频端口;其中, 一行导频端口的个数为 M, —列导频端口的个数为 N。
优选的, 导频端口确定模块 102进一步用于:
若 Μ χ Ν不大于 3GPP标准中定义的 CSI-RS可配置的最大端口数, 将同一种 CSI-RS 配置作为每一个水平维导频端口的参考信号和每一个垂直维导频端口的参考信号的配置; 其中, CSI-RS配置包括: CSI-RS的发送周期、 子帧偏移量及时频域位置。
优选的, 导频端口确定模块 102还用于:
将不同的 CSI-RS 配置分别作为不同行水平维导频端口的参考信号和对应的垂直维导 频端口的参考信号的配置; 或者
将不同的 CSI-RS 配置作为不同列垂直维导频端口的参考信号和对应的水平维导频端 口的参考信号的配置。
优选的, 导频端口确定模块 102还用于:
从天线端口阵列的所有行中, 选择某一行及某一列配置为导频端口; 或者
釆用固定的天线虚拟化权值进行天线虚拟化处理, 得到一行和一列需要配置参考信号 的导频端口。
优选的, 导频端口确定模块 102具体用于:
若 M+N不大于 3GPP标准中定义的 CSI-RS可配置的最大端口数, 且为每个导频端口
分配的端口号都不相同时, 将同一种 CSI-RS配置作为每一个水平维导频端口的参考信号 和每一个垂直维导频端口的参考信号的配置。
优选的, 导频端口确定模块 102还用于:
将不同的 CSI-RS 配置分别作为水平维导频端口的参考信号和垂直维导频端口的参考 信号的配置。
优选的, 导频端口确定模块 102还用于:
在承载水平维参考信号的子帧与承载垂直维参考信号的子帧为不同子帧时, 根据天线 端口阵列, 釆用天线虚拟化处理, 得到一行和一列需要配置参考信号的导频端口, 并将该 行导频端口作为水平维导频端口及该列导频端口作为垂直维导频端口; 其中, 一行导频端 口的个数为 M, —列导频端口的个数为 N。
优选的, 发送模块 103还用于:
在每个设定的水平维参考信号发送周期内, 在承载水平维参考信号的子帧中发送水平 维导频端口中配置的参考信号; 和 /或
在每个设定的垂直维参考信号发送周期内, 在承载垂直维参考信号的子帧中发送垂直 维导频端口中配置的参考信号。
优选的, 导频端口确定模块 102还用于:
网络侧在每个水平维信号发送周期内, 从天线端口阵列的所有行中, 选择不同的行配 置为导频端口;
网络侧在每个垂直维信号发送周期内, 从天线端口阵列的所有列中, 选择不同的列配 置为导频端口。
优选的, 发送模块 103还用于:
向接收端发送水平维参考信号和垂直维参考信号的配置信息, 其中, 配置信息包括水 平维参考信号和垂直维参考信号的子帧配置和水平维导频端口和垂直维导频端口的配置。
具体的, 在硬件上子帧确定模块 101和导频端口确定模块 102可以是处理器, 发送模 块 103可以是包含收发天线等的信号收发装置, 此时, 如图 10B所示, 本发明实施例提供 的一种发送参考信号的网络侧设备, 包括:
第一处理器 1010, 用于确定用于承载参考信号的子帧; 确定参考信号的导频端口; 第一信号收发装置 1020, 用于在确定的子帧中发送导频端口中配置的参考信号; 其中, 确定的所有导频端口中至少包括一行水平维导频端口和一列垂直维导频端口, 水平维导频端口中配置的参考信号为水平维参考信号, 垂直维导频端口中配置的参考信号 为垂直维参考信号。
优选的, 第一处理器 1010用于:
在承载水平维参考信号的子帧与承载垂直维参考信号的子帧为同一子帧时, 将天线端
口阵列中的所有天线端口配置为导频端口, 并将每一行导频端口作为一行水平维导频端口 及每一列导频端口作为一列垂直维导频端口; 或者
根据天线端口阵列, 釆用天线虚拟化处理, 得到一行和一列需要配置参考信号的导频 端口,并将该行导频端口作为水平维导频端口及该列导频端口作为垂直维导频端口;其中, 一行导频端口的个数为 M, —列导频端口的个数为 N。
优选的, 第一处理器 1010进一步用于:
若 Μ χ Ν不大于 3GPP标准中定义的 CSI-RS可配置的最大端口数, 将同一种 CSI-RS 配置作为每一个水平维导频端口的参考信号和每一个垂直维导频端口的参考信号的配置; 其中, CSI-RS配置包括: CSI-RS的发送周期、 子帧偏移量及时频域位置。
优选的, 第一处理器 1010, 还用于:
将不同的 CSI-RS 配置分别作为不同行水平维导频端口的参考信号和对应的垂直维导 频端口的参考信号的配置; 或者
将不同的 CSI-RS 配置作为不同列垂直维导频端口的参考信号和对应的水平维导频端 口的参考信号的配置。
优选的, 第一处理器 1010, 还用于:
从天线端口阵列的所有行中, 选择某一行及某一列配置为导频端口; 或者
釆用固定的天线虚拟化权值进行天线虚拟化处理, 得到一行和一列需要配置参考信号 的导频端口。
优选的, 第一处理器 1010, 具体用于:
若 M+N不大于 3GPP标准中定义的 CSI-RS可配置的最大端口数, 且为每个导频端口 分配的端口号都不相同时, 将同一种 CSI-RS配置作为每一个水平维导频端口的参考信号 和每一个垂直维导频端口的参考信号的配置。
优选的, 第一处理器 1010, 还用于:
将不同的 CSI-RS 配置分别作为水平维导频端口的参考信号和垂直维导频端口的参考 信号的配置。
优选的, 第一处理器 1010, 还用于:
在承载水平维参考信号的子帧与承载垂直维参考信号的子帧为不同子帧时, 根据天线 端口阵列, 釆用天线虚拟化处理, 得到一行和一列需要配置参考信号的导频端口, 并将该 行导频端口作为水平维导频端口及该列导频端口作为垂直维导频端口; 其中, 一行导频端 口的个数为 M, —列导频端口的个数为 N。
优选的, 第一信号收发装置 1020还用于:
在每个设定的水平维参考信号发送周期内, 在承载水平维参考信号的子帧中发送水平 维导频端口中配置的参考信号; 和 /或
在每个设定的垂直维参考信号发送周期内, 在承载垂直维参考信号的子帧中发送垂直 维导频端口中配置的参考信号。
优选的, 第一处理器 1010还用于:
网络侧在每个水平维信号发送周期内, 从天线端口阵列的所有行中, 选择不同的行配 置为导频端口;
网络侧在每个垂直维信号发送周期内, 从天线端口阵列的所有列中, 选择不同的列配 置为导频端口。
优选的, 第一信号收发装置 1020还用于:
向接收端发送水平维参考信号和垂直维参考信号的配置信息, 其中, 配置信息包括水 平维参考信号和垂直维参考信号的子帧配置和水平维导频端口和垂直维导频端口的配置。
基于同一发明构思, 本发明实施例中还提供了一种接收参考信号的接收端设备, 由于 该接收端设备解决问题的原理与上述接收参考信号的方法相似, 因此该接收端设备的实施 可以参见接收参考信号的方法的实施, 重复之处不再赘述。
参见图 11 , 本发明实施例提供的一种接收参考信号的接收端设备, 包括:
接收模块 111 , 用于接收来自网络侧发送的导频端口中配置的参考信号, 其中, 导频 端口至少包括一行水平维导频端口和一列垂直维导频端口, 水平维导频端口中配置的参考 信号为水平维参考信号, 垂直维导频端口中配置的参考信号为垂直维参考信号;
信道估计模块 112, 用于根据水平维参考信号和垂直维参考信号, 分别估计水平维导 频端口的信道信息和垂直维导频端口的信道信息。
优选的, 接收模块 111还用于:
接收来自网络侧发送的水平维参考信号和垂直维参考信号的配置信息, 其中, 配置信 息包括水平维参考信号和垂直维参考信号的子帧配置和水平维导频端口和垂直维导频端 口的配置。
具体的, 在硬件上接收模块 111可以是包含收发天线等的信号收发装置, 信道估计模 块 112可以是处理器, 此时, 如图 11B所示, 本发明实施例提供的一种接收参考信号的接 收端设备, 包括:
第二信号收发装置 1110, 用于接收来自网络侧发送的导频端口中配置的参考信号, 其 中, 导频端口至少包括一行水平维导频端口和一列垂直维导频端口, 水平维导频端口中配 置的参考信号为水平维参考信号, 垂直维导频端口中配置的参考信号为垂直维参考信号; 第二处理器 1120, 用于根据水平维参考信号和垂直维参考信号, 分别估计水平维导频 端口的信道信息和垂直维导频端口的信道信息。
优选的, 第二信号收发装置 1110还用于:
接收来自网络侧发送的水平维参考信号和垂直维参考信号的配置信息, 其中, 配置信
息包括水平维参考信号和垂直维参考信号的子帧配置和水平维导频端口和垂直维导频端 口的配置。
其中, 本发明实施例的网络侧设备可以是基站、 低功率发送节点等; 接收端设备可以 是 UE、 中继等。
基于同一发明构思, 本发明实施例中还提供了一种传输参考信号的***, 由于该*** 解决问题的原理与上述接收和发送参考信号的方法相似, 因此该***的实施可以参见上述 方法的实施, 重复之处不再赘述。
参见图 12, 本发明实施例提供的一种传输参考信号的***, 包括:
网络侧设备 120, 用于确定用于承载参考信号的子帧, 确定参考信号的导频端口, 及 在确定的子帧中发送导频端口中配置的参考信号;
接收端设备 130, 用于接收来自网络侧设备 120发送的导频端口中配置的参考信号, 并根据水平维参考信号和垂直维参考信号, 分别估计水平维导频端口的信道信息和垂直维 导频端口的信道信息;
其中, 所有导频端口中至少包括一行水平维导频端口和一列垂直维导频端口, 水平维 导频端口中配置的参考信号为水平维参考信号, 垂直维导频端口中配置的参考信号为垂直 维参考信号。
下面列举几个具体实例:
实施例 1 : 水平维参考信号和垂直维参考信号配置在不同的子帧, 且均釆用周期性配 置, 重用 CSI-RS参考信号(即釆用 3GPP标准中定义的 CSI-RS的配置信息,如发射周期、 子帧偏移量等配置信息)对水平维参考信号和垂直维参考信号进行配置, 水平维参考信号 和垂直维参考信号可以映射到相同或不同的频域资源; 假设水平维参考信号和垂直维参考 信号配置相同的发射周期 P和不同的子帧偏移量 Δη (水平维参考信号的子帧偏移量)、 Δν (垂直维参考信号的子帧偏移量);
则在第 n+ ΔH个子帧配置水平维参考信号, 在第 !!+八 个子帧配置垂直维参考信号, 在第 n+P+ Δv个子帧配置水平维参考信号, 在第 η+Ρ+ Δν个子帧配置垂直维参考信 号, ... ... , 依次类推; 其中, η为正整数;
水平维导频端口可以釆用固定的天线虚拟化权值确定, 也可以选取该天线阵列中的任 一行作为水平维导频端口; 同样的,垂直维导频端口可以釆用固定的天线虚拟化权值确定, 也可以选取天线阵列中的任一列作为垂直维导频端口。
网络侧通知接收端水平维参考信号和垂直维参考信号的配置信息, 该配置信息包括水 平维参考信号和垂直维参考信号的资源配置和子帧配置的信息, 还可以包括用于指示属于 水平维参考信号的配置信息和属于垂直维参考信号的配置信息的指示信息。
实施例 2:水平维参考信号和垂直维参考信号釆用周期性配置,重用 CSI-RS参考信号,
水平维参考信号和垂直维参考信号釆用相同或不同的频域资源; 假设水平维参考信号和垂 直维参考信号配置不同的发射周期和相同的子帧偏移量, 即水平维参考信号的发送周期为
ΡΗ、垂直维参考信号的发送周期为 PV、及子帧偏移量为 Δ , 其中,
, κ为正整数; 则在第 η+ Δ个子帧配置水平维参考信号, 在第 η+ ΡΗ + Δ个子帧配置水平维参考信 号, ... ... , 在第 η+ΚΡΗ + Δ个子帧同时配置水平维参考信号和垂直维参考信号, 依次类推; 水平维导频端口可以釆用固定的天线虚拟化权值确定, 也可以选取该天线阵列中的任 一行作为水平维导频端口; 同样的,垂直维导频端口可以釆用固定的天线虚拟化权值确定, 也可以选取天线阵列中的任一列作为垂直维导频端口。
网络侧通知接收端水平维参考信号和垂直维参考信号的配置信息, 该配置信息包括水 平维参考信号和垂直维参考信号的资源配置和子帧配置的信息, 还可以包括用于指示属于 水平维参考信号的配置信息和属于垂直维参考信号的配置信息的指示信息。
实施例 3 : 水平维参考信号和垂直维参考信号配置在不同子帧, 且均釆用周期性配置, 重用 CSI-RS参考信号, 水平维参考信号和垂直维参考信号釆用相同或不同的频域资源; 假设水平维参考信号和垂直维参考信号配置不同的发射周期和不同的子帧偏移量, 即水平 维参考信号的发射周期为 、 垂直维参考信号的发射周期为 、 水平维参考信号的子帧 偏移量为 Δη、 垂直维参考信号的子帧偏移量为 Δν , 其中,
, κ为正整数;
则在第 n+ ΔH个子帧配置水平维参考信号, 在第 η+ ΡΗ + ΔΗ个子帧配置水平维参考信 号, ..., 在第 n+K 5H + ΔH个子帧配置水平维参考信号, 在第 n+K 5H + Δ V个子帧配置垂直 维参考信号, 依次类推; 其中, η为正整数;
水平维导频端口可以釆用固定的天线虚拟化权值确定, 也可以选取天线阵列中的任一 行作为水平维导频端口; 同样的,垂直维导频端口可以是釆用固定的天线虚拟化权值确定, 也可以选取天线阵列中的任一列作为垂直维导频端。
网络侧通知接收端水平维参考信号和垂直维参考信号的配置信息, 该配置信息包括水 平维参考信号和垂直维参考信号的资源配置和子帧配置的信息, 还可以包括用于指示属于 水平维参考信号的配置信息和属于垂直维参考信号的配置信息的指示信息。
本领域内的技术人员应明白, 本发明的实施例可提供为方法、 ***、 或计算机程序产 品。 因此, 本发明可釆用完全硬件实施例、 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, 本发明可釆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 可用存储介盾 (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。
本发明是参照根据本发明实施例的方法、 设备(***)、 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。
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。
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。
尽管已描述了本发明的优选实施例, 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 实施例以及落入本发明范围的所有变更和修改。
本发明实施例由于能够发送垂直维参考信号, 从而可以实现动态 3D波束赋型技术, 提高了小区边缘用户设备吞吐量和平均吞吐量。
显然, 本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和 范围。这样,倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内, 则本发明也意图包含这些改动和变型在内。
Claims
1、 一种发送参考信号的方法, 其特征在于, 该方法包括:
网络侧确定用于承载参考信号的子帧;
所述网络侧确定所述参考信号的导频端口;
所述网络侧在确定的子帧中发送所述导频端口中配置的参考信号;
其中, 确定的所有导频端口中至少包括一行水平维导频端口和一列垂直维导频端口, 水平维导频端口中配置的参考信号为水平维参考信号, 垂直维导频端口中配置的参考信号 为垂直维参考信号。
2、 如权利要求 1 所述的方法, 其特征在于, 所述水平维参考信号和所述垂直维参考 信号为 3GPP标准中定义的信道状态指示参考信号 CSI-RS。
3、 如权利要求 2 所述的方法, 其特征在于, 若承载所述水平维参考信号的子帧与承 载所述垂直维参考信号的子帧为同一子帧, 所述网络侧确定所述参考信号的导频端口包 括:
所述网络侧将天线端口阵列中的所有天线端口配置为导频端口, 并将每一行导频端口 作为一行水平维导频端口及每一列导频端口作为一列垂直维导频端口; 其中, 所述天线端 口阵列为由小区所支持的天线端口阵列排布而成, 所述天线端口阵列中的行表示水平方向 且包含 M个天线端口, 列表示垂直方向且包含 N个天线端口, M和 N均为不小于 1的正 整数; 或者
所述网络侧根据所述天线端口阵列, 釆用天线虚拟化处理, 得到一行和一列需要配置 参考信号的导频端口, 并将该行导频端口作为水平维导频端口及该列导频端口作为垂直维 导频端口; 其中, 所述一行导频端口的个数为 M, 所述一列导频端口的个数为 N。
4、 如权利要求 3 所述的方法, 其特征在于, 所述网络侧将每一行导频端口作为一行 水平维导频端口及每一列导频端口作为一列垂直维导频端口, 还包括:
若 Μ χ Ν不大于 CSI-RS可配置的最大端口数, 所述网络侧将 3GPP标准中定义的同 一种 CSI-RS 配置作为每一个水平维导频端口的参考信号和每一个垂直维导频端口的参考 信号的配置;
其中, 所述 CSI-RS配置包括: CSI-RS配置的发送周期、 子帧偏移量及时频域位置。
5、 如权利要求 4 所述的方法, 其特征在于, 所述网络侧为导频端口分配的端口号为 15~(15+M x N-l);
其中, 第 i行水平维导频端口的端口号分别为 15+(i-l) x M~15+i x M-l , 相应的, 每一 列垂直维导频端口的端口号是根据每行水平维导频端口确定的; 其中, i为整数, 且 i的取 值为 1~N; 或者
第 j列垂直维导频端口的端口号分别为 15+(j-l) x N~15+j χ Ν-1 , 相应的, 每行水平维
导频端口的端口号是根据每列垂直维导频端口的端口号确定的; 其中, j为整数, 且 j的取 值为 1~M。
6、 如权利要求 3 所述的方法, 其特征在于, 所述网络侧将每一行导频端口作为一行 水平维导频端口及每一列导频端口作为一列垂直维导频端口, 还包括:
所述网络侧将 3GPP标准中定义的不同的 CSI-RS配置分别作为不同行水平维导频端口 的参考信号和对应的垂直维导频端口的参考信号的配置; 或者
所述网络侧将 3GPP标准中定义的不同的 CSI-RS配置分别作为不同列垂直维导频端口 的参考信号和对应的水平维导频端口的参考信号的配置。
7、 如权利要求 6 所述的方法, 其特征在于, 所述网络侧为每一行导频端口分配的端 口号为 15~(15+M-1), 其中, 每一行水平维导频端口的端口号为 15~(15+M-1), 第 j列垂直 维导频端口的端口号都为(15+j-l) , j为整数, 且 j的取值为 1~M;
所述网络侧为每一列导频端口分配的端口号为 15~(15+N-1), 其中, 每一列垂直维导 频端口的端口号为 15~(15+N-1), 第 i行水平维导频端口的端口号都为(15+i-l) , i为整数, 且 i的取值为 1~N。
8、 如权利要求 3所述的方法, 其特征在于, 所述网络侧釆用天线虚拟化处理包括: 所述网络侧从所述天线端口阵列中, 选择某一行及某一列配置为导频端口; 或者 所述网络侧釆用固定的天线虚拟化权值进行天线虚拟化处理, 得到一行和一列需要配 置参考信号的导频端口。
9、 如权利要求 8 所述的方法, 其特征在于, 所述网络侧将天线虚拟化处理后得到的 一行导频端口作为水平维导频端口及一列导频端口作为垂直维导频端口, 还包括:
若 M+N不大于 CSI-RS配置的最大端口数, 所述网络侧将 3GPP标准中定义的同一种 CSI-RS 配置作为每一个水平维导频端口的参考信号和每一个垂直维导频端口的参考信号 的配置。
11、 如权利要求 8所述的方法, 其特征在于, 所述网络侧将天线虚拟化处理后得到的 一行导频端口作为水平维导频端口及一列导频端口作为垂直维导频端口, 还包括:
所述网络侧将 3GPP标准中定义的不同的 CSI-RS配置分别作为水平维导频端口的参考 信号和垂直维导频端口的参考信号的配置。
12、 如权利要求 2所述的方法, 其特征在于, 若承载所述水平维参考信号的子帧与承 载所述垂直维参考信号的子帧为不同子帧, 所述网络侧确定用于配置所述参考信号的导频 端口包括:
所述网络侧根据所述天线端口阵列, 釆用天线虚拟化处理, 得到一行和一列需要配置
参考信号的导频端口, 并将该行导频端口作为水平维导频端口及该列导频端口作为垂直维 导频端口; 其中, 所述一行导频端口的个数为 M, 所述一列导频端口的个数为 N , M和 N均为不小于 1的正整数。
13、 如权利要求 12所述的方法, 其特征在于, 所述网络侧釆用天线虚拟化处理包括: 所述网络侧从所述天线端口阵列中, 选择某一行及某一列配置为导频端口; 或者 所述网络侧釆用固定的天线虚拟化权值进行天线虚拟化处理, 得到一行口和一列需要 配置参考信号的导频端口。
14、 如权利要求 12或 13所述的方法, 其特征在于, 所述网络侧在确定的子帧中发送 所述导频端口中配置的参考信号包括:
所述网络侧在每个设定的水平维参考信号发送周期内, 在承载水平维参考信号的子帧 中发送水平维导频端口中配置的参考信号; 和 /或
所述网络侧在每个设定的垂直维参考信号发送周期内, 在承载垂直维参考信号的子帧 中发送垂直维导频端口中配置的参考信号。
15、 如权利要求 14 所述的方法, 其特征在于, 所述垂直维参考信号发送周期与所述 水平维参考信号发送周期相同; 或者
所述垂直维参考信号发送周期为所述水平维参考信号发送周期的 J倍, 其中, J为不 小于 1的整数; 或者
所述水平维参考信号发送周期为所述垂直维参考信号发送周期的 K倍, 其中, K为不 小于 1的整数。
16、 如权利要求 14 所述的方法, 其特征在于, 所述网络侧确定水平维导频端口和垂 直维导频端口包括:
所述网络侧在每个所述水平维信号发送周期内, 从所述天线端口阵列的所有行中, 选 择不同的行配置为导频端口;
所述网络侧在每个所述垂直维信号发送周期内, 从所述天线端口阵列的所有列中, 选 择不同的列配置为导频端口。
17、 如权利要求 11或 12所述的方法, 其特征在于, 所述网络侧为水平维导频端口分 配的端口号为 15~(15+M-1);
所述网络侧为垂直维导频端口分配的端口号为 15~(15+N -1) 。
18、 如权利要求 1或 2所述的方法, 其特征在于, 所述方法还包括:
所述网络侧向接收端发送所述水平维参考信号和所述垂直维参考信号的配置信息, 其 中, 所述配置信息包括所述水平维参考信号和所述垂直维参考信号的子帧配置和水平维导 频端口和垂直维导频端口的配置。
19、 如权利要求 18 所述的方法, 其特征在于, 所述配置信息还包括指示信息, 所述
指示信息用于指示所述配置信息中属于水平维参考信号的配置信息和属于垂直维参考信 号的配置信息。
20、 如权利要求 18 所述的方法, 其特征在于, 所述网络侧通过高层信令或物理层控 制信令发送所述水平维参考信号和所述垂直维参考信号的配置信息。
21、 一种接收参考信号的方法, 其特征在于, 该方法包括:
接收端接收来自网络侧发送的导频端口中配置的参考信号, 其中, 所有导频端口中至 少包括一行水平维导频端口和一列垂直维导频端口, 水平维导频端口中配置的参考信号为 水平维参考信号, 垂直维导频端口中配置的参考信号为垂直维参考信号;
所述接收端根据所述水平维参考信号和所述垂直维参考信号, 分别估计水平维导频端 口的信道信息和垂直维导频端口的信道信息。
22、 如权利要求 21 所述的方法, 其特征在于, 所述接收端在接收所述导频端口中配 置的参考信号之前, 所述方法还包括:
所述接收端接收来自所述网络侧发送的所述水平维参考信号和所述垂直维参考信号 的配置信息, 其中, 所述配置信息包括所述水平维参考信号和所述垂直维参考信号的子帧 配置和水平维导频端口和垂直维导频端口的配置。
23、 一种发送参考信号的网络侧设备, 其特征在于, 该网络侧设备包括:
子帧确定模块, 用于确定用于承载参考信号的子帧;
参考信号确定模块, 用于确定所述参考信号的导频端口;
发送模块, 用于在确定的子帧中发送所述导频端口中配置的参考信号;
其中, 确定的所有导频端口中至少包括一行水平维导频端口和一列垂直维导频端口, 水平维导频端口中配置的参考信号为水平维参考信号, 垂直维导频端口中配置的参考信号 为垂直维参考信号。
24、 如权利要求 23 所述的网络侧设备, 其特征在于, 所述水平维参考信号和所述垂 直维参考信号为 3GPP标准中定义的信道状态指示参考信号 CSI-RS。
25、 如权利要求 23 所述的网络侧设备, 其特征在于, 所述参考信号确定模块具体用 于:
在承载所述水平维参考信号的子帧与承载所述垂直维参考信号的子帧为同一子帧时, 将天线端口阵列中的所有天线端口配置为导频端口, 并将每一行导频端口作为一行水平维 导频端口及每一列导频端口作为一列垂直维导频端口, 其中, 所述天线端口阵列为由小区 所支持的天线端口阵列排布形成,其中, 天线端口阵列中的行表示水平方向且包含 M个天 线端口, 列表示垂直方向且包含 N个天线端口, M和 N均为不小于 1的正整数; 或者 根据所述天线端口阵列, 釆用天线虚拟化处理, 得到一行和一列需要配置参考信号的 导频端口, 并将该行导频端口作为水平维导频端口及该列导频端口作为垂直维导频端口;
其中, 所述一行导频端口的个数为 M, 所述一列导频端口的个数为 N。
26、 如权利要求 24或 25所述的网络侧设备, 其特征在于, 所述参考信号确定模块进 一步用于:
若 M X N不大于 CSI-RS可配置的最大端口数,将同一种 CSI-RS配置作为每一个水平 维导频端口的参考信号和每一个垂直维导频端口的参考信号的配置;
其中, 所述 CSI-RS配置包括: CSI-RS配置的发送周期、 子帧偏移量及时频域位置。
27、 如权利要求 24或 25所述的网络侧设备, 其特征在于, 所述参考信号确定模块还 用于:
将不同的 CSI-RS 配置分别作为不同行水平维导频端口的参考信号和对应的垂直维导 频端口的参考信号的配置; 或者
将不同的 CSI-RS 配置作为不同列垂直维导频端口的参考信号和对应的水平维导频端 口的参考信号的配置。
28、 如权利要求 24或 25所述的网络侧设备, 其特征在于, 所述参考信号确定模块还 用于:
从所述天线端口阵列的所有行中, 选择某一行及某一列配置为导频端口; 或者 釆用固定的天线虚拟化权值进行天线虚拟化处理, 得到一行和一列需要配置参考信号 的导频端口。
29、 如权利要求 24或 25所述的网络侧设备, 其特征在于, 所述参考信号确定模块具 体用于:
若 M+N不大于 CSI-RS可配置的最大端口数, 将同一种 CSI-RS配置作为每一个水平 维导频端口的参考信号和每一个垂直维导频端口的参考信号的配置。
30、 如权利要求 24或 25所述的网络侧设备, 其特征在于, 所述参考信号确定模块还 用于:
将不同的 CSI-RS 配置分别作为水平维导频端口的参考信号和垂直维导频端口的参考 信号的配置。
31、 如权利要求 23所述的网络侧设备, 其特征在于, 所述参考信号确定模块还用于: 在承载所述水平维参考信号的子帧与承载所述垂直维参考信号的子帧为不同子帧时, 根据所述天线端口阵列, 釆用天线虚拟化处理, 得到一行和一列需要配置参考信号的导频 端口,并将该行导频端口作为水平维导频端口及该列导频端口作为垂直维导频端口;其中, 所述一行导频端口的个数为 M,所述一列导频端口的个数为 N, M和 N均为不小于 1的正 整数。
32、 如权利要求 31所述的网络侧设备, 其特征在于, 所述发送模块还用于: 在每个设定的水平维参考信号发送周期内, 在承载水平维参考信号的子帧中发送水平
维导频端口中配置的参考信号; 和 /或
在每个设定的垂直维参考信号发送周期内, 在承载垂直维参考信号的子帧中发送垂直 维导频端口中配置的参考信号。
33、 如权利要求 32所述的网络侧设备, 其特征在于, 所述参考信号确定模块还用于: 所述网络侧在每个所述水平维信号发送周期内, 从所述天线端口阵列的所有行中, 选 择不同的行配置为导频端口;
所述网络侧在每个所述垂直维信号发送周期内, 从所述天线端口阵列的所有列中, 选 择不同的列配置为导频端口。
34、 如权利要求 23所述的网络侧设备, 其特征在于, 所述发送模块还用于: 向接收端发送所述水平维参考信号和所述垂直维参考信号的配置信息, 其中, 所述配 置信息包括所述水平维参考信号和所述垂直维参考信号的子帧配置和水平维导频端口和 垂直维导频端口的配置。
35、 一种接收参考信号的接收端设备, 其特征在于, 所述接收端设备包括: 接收模块, 用于接收来自网络侧发送的导频端口中配置的参考信号, 其中, 导频端口 至少包括一行水平维导频端口和一列垂直维导频端口, 水平维导频端口中配置的参考信号 为水平维参考信号, 垂直维导频端口中配置的参考信号为垂直维参考信号;
信道估计模块, 用于根据所述水平维参考信号和所述垂直维参考信号, 分别估计水平 维导频端口的信道信息和垂直维导频端口的信道信息。
36、 如权利要求 35所述的接收端设备, 其特征在于, 所述接收模块还用于: 接收来自所述网络侧发送的所述水平维参考信号和所述垂直维参考信号的配置信息, 其中, 所述配置信息包括所述水平维参考信号和所述垂直维参考信号的子帧配置和水平维 导频端口和垂直维导频端口的配置。
37、 一种传输参考信号的***, 其特征在于, 所述***包括:
网络侧设备, 用于确定用于承载参考信号的子帧; 从小区所支持的天线端口中, 确定 用于配置所述参考信号的导频端口; 及在确定的子帧中发送导频端口中配置的参考信号; 接收端设备, 用于接收来自网络侧设备发送的导频端口中配置的参考信号, 并根据所 述水平维参考信号和所述垂直维参考信号, 分别估计水平维导频端口的信道信息和垂直维 导频端口的信道信息;
其中, 所有导频端口中至少包括一行水平维导频端口和一列垂直维导频端口, 水平维 导频端口中配置的参考信号为水平维参考信号, 垂直维导频端口中配置的参考信号为垂直 维参考信号。
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105322995A (zh) * | 2014-07-30 | 2016-02-10 | 电信科学技术研究院 | Mimo***中的导频发送方法、信道测量方法及装置 |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103634854B (zh) * | 2012-08-28 | 2017-11-07 | 中兴通讯股份有限公司 | 终端接入方法、***和终端 |
CN104202073A (zh) * | 2014-03-04 | 2014-12-10 | 中兴通讯股份有限公司 | 信道信息的反馈方法、导频及波束发送方法、***及装置 |
US20150288499A1 (en) * | 2014-04-07 | 2015-10-08 | Samsung Electronics Co., Ltd. | Periodic and aperiodic channel state information reporting for advanced wireless communication systems |
WO2015167316A1 (ko) * | 2014-05-02 | 2015-11-05 | 엘지전자 주식회사 | 다중 안테나 무선 통신 시스템에서 향상된 빔포밍 방법 및 이를 위한 장치 |
WO2015180025A1 (en) * | 2014-05-26 | 2015-12-03 | Nec Corporation | Methods and devices for vertical domain channel state information transmission/reception in wireless communication networks |
CN105323032B (zh) * | 2014-06-18 | 2019-02-05 | ***通信集团公司 | 一种三维预编码矩阵的生成方法、基站及终端 |
CN105471559B (zh) * | 2014-09-05 | 2020-01-14 | 中兴通讯股份有限公司 | 准共位置的配置、确定方法及装置 |
CN105577255A (zh) * | 2014-10-16 | 2016-05-11 | ***通信集团公司 | 一种信道状态信息参考信号的发送方法及装置 |
CN107078824B (zh) * | 2014-12-26 | 2020-03-20 | 华为技术有限公司 | 发送信道估计参考信息和信道估计的方法、发射和接收机 |
WO2016108483A1 (ko) * | 2014-12-30 | 2016-07-07 | 엘지전자(주) | 무선 통신 시스템에서 채널 추정을 수행하기 위한 방법 및 이를 위한 장치 |
CN105871515B (zh) * | 2015-01-23 | 2019-07-19 | 电信科学技术研究院 | 一种信道状态信息反馈方法、下行参考信号方法及装置 |
CN105991175B (zh) | 2015-01-29 | 2019-02-05 | 电信科学技术研究院 | 一种导频信号的发送、接收处理方法及装置 |
CN106160821B (zh) * | 2015-03-31 | 2019-11-19 | 电信科学技术研究院 | 一种信道状态信息反馈、获取方法及装置 |
CN106160810A (zh) * | 2015-04-13 | 2016-11-23 | 北京信威通信技术股份有限公司 | 一种二维多输入多输出***的预编码方法 |
CN107852279B (zh) | 2015-08-14 | 2020-04-14 | 华为技术有限公司 | 码本的配置方法和用户设备 |
CA2997527A1 (en) * | 2015-11-13 | 2017-05-18 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method of allocating radio resource and device utilizing the same |
CN106899522B (zh) * | 2015-12-17 | 2019-11-19 | ***通信集团公司 | 一种信道状态信息参考信号csi-rs的发送方法、装置及基站 |
CN109302222B (zh) * | 2016-05-13 | 2019-11-19 | 华为技术有限公司 | 一种信道信息发送方法、数据发送方法和设备 |
CN107404372B (zh) * | 2016-05-20 | 2019-02-22 | 北京小米移动软件有限公司 | 一种通信方法及装置 |
CN107733493B (zh) | 2016-08-10 | 2021-02-12 | 华为技术有限公司 | 用于确定预编码矩阵的方法和装置 |
CN108155923B (zh) * | 2016-12-03 | 2020-05-22 | 上海朗帛通信技术有限公司 | 一种被用于多天线传输的ue、基站中的方法和装置 |
US12022307B2 (en) * | 2020-10-02 | 2024-06-25 | Qualcomm Incorporated | Measurement of reference signal with polarization |
CN116112046A (zh) * | 2021-11-10 | 2023-05-12 | 华为技术有限公司 | 参考信号的传输方法和装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101877865A (zh) * | 2009-04-30 | 2010-11-03 | 中兴通讯股份有限公司 | 发送测量参考信号的方法、***以及基站和中继站 |
CN102412885A (zh) * | 2011-11-25 | 2012-04-11 | 西安电子科技大学 | Lte中的三维波束赋形方法 |
CN102938688A (zh) * | 2011-08-15 | 2013-02-20 | 上海贝尔股份有限公司 | 用于多维天线阵列的信道测量和反馈的方法和设备 |
Family Cites Families (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5867478A (en) * | 1997-06-20 | 1999-02-02 | Motorola, Inc. | Synchronous coherent orthogonal frequency division multiplexing system, method, software and device |
US7248559B2 (en) * | 2001-10-17 | 2007-07-24 | Nortel Networks Limited | Scattered pilot pattern and channel estimation method for MIMO-OFDM systems |
KR101160135B1 (ko) * | 2003-08-12 | 2012-06-26 | 파나소닉 주식회사 | 무선 통신 장치 및 파일럿 심볼 전송 방법 |
EP1542488A1 (en) * | 2003-12-12 | 2005-06-15 | Telefonaktiebolaget LM Ericsson (publ) | Method and apparatus for allocating a pilot signal adapted to the channel characteristics |
KR100507541B1 (ko) * | 2003-12-19 | 2005-08-09 | 삼성전자주식회사 | 직교주파수분할다중접속 시스템에서의 데이터 및 파일롯할당 방법 과 그를 이용한 송신 방법 및 그 장치, 수신방법과 그 장치 |
US8588326B2 (en) * | 2004-07-07 | 2013-11-19 | Apple Inc. | System and method for mapping symbols for MIMO transmission |
CN1787506B (zh) * | 2004-12-09 | 2010-09-15 | 中兴通讯股份有限公司 | 正交频分复用***的导频分配方法和装置 |
KR100594086B1 (ko) * | 2005-01-04 | 2006-06-30 | 삼성전자주식회사 | 채널 추정을 위한 적응적 파일럿 할당 방법 및 장치 |
US9461859B2 (en) * | 2005-03-17 | 2016-10-04 | Qualcomm Incorporated | Pilot signal transmission for an orthogonal frequency division wireless communication system |
US9143305B2 (en) * | 2005-03-17 | 2015-09-22 | Qualcomm Incorporated | Pilot signal transmission for an orthogonal frequency division wireless communication system |
WO2006102771A1 (en) * | 2005-03-30 | 2006-10-05 | Nortel Networks Limited | Methods and systems for ofdm using code division multiplexing |
US8126066B2 (en) * | 2005-06-09 | 2012-02-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Time and frequency channel estimation |
US7660229B2 (en) * | 2005-06-20 | 2010-02-09 | Texas Instruments Incorporated | Pilot design and channel estimation |
KR101364783B1 (ko) * | 2005-07-29 | 2014-02-19 | 파나소닉 주식회사 | 통신 장치, 통신 방법 및 집적 회로 |
EP1929735B1 (en) * | 2005-09-27 | 2019-01-16 | Nokia Technologies Oy | Pilot structure for multicarrier transmissions |
JP5061182B2 (ja) * | 2006-04-24 | 2012-10-31 | 韓國電子通信研究院 | 適応型チャンネル推定が可能なパイロットパターン生成方法、該パイロットパターンを利用した送受信方法及びその装置 |
WO2008013398A1 (en) * | 2006-07-28 | 2008-01-31 | Samsung Electronics Co., Ltd. | Method and apparatus for positioning pilot in an ofdma mobile communication system |
US8130867B2 (en) * | 2007-01-05 | 2012-03-06 | Qualcomm Incorporated | Pilot design for improved channel and interference estimation |
EP2022785A1 (en) * | 2007-06-20 | 2009-02-11 | Bayer Schering Pharma Aktiengesellschaft | Alkynylpyrimidines as Tie2 kinase inhibitors |
US7894331B2 (en) * | 2007-09-05 | 2011-02-22 | Newport Media, Inc. | Adaptive time-domain interpolation for OFDM scattered pilot symbols |
KR101520667B1 (ko) * | 2007-09-10 | 2015-05-18 | 엘지전자 주식회사 | 다중 안테나 시스템에서의 파일럿 부반송파 할당 방법 |
KR101498060B1 (ko) * | 2008-02-19 | 2015-03-03 | 엘지전자 주식회사 | Ofdm(a) 시스템에서의 상향링크 전송 방법 |
US8204014B2 (en) * | 2008-03-18 | 2012-06-19 | Motorola Mobility, Inc. | Method and system for codebook-based closed-loop MIMO using common pilots and analog feedback |
US20110026482A1 (en) * | 2008-03-27 | 2011-02-03 | Postdata Co., Ltd. | Method and apparatus for pilot signal transmission |
US8811331B2 (en) * | 2008-04-10 | 2014-08-19 | Telefonaktiebolaget L M Ericsson (Publ) | Pilot design using costas arrays |
US8724718B2 (en) * | 2008-04-10 | 2014-05-13 | Mediatek Inc. | Pilot pattern design for small size resource block in OFDMA systems |
US8363740B2 (en) * | 2008-05-29 | 2013-01-29 | Sony Corporation | Pilot allocation in multi-carrier systems with frequency notching |
US9647810B2 (en) * | 2009-03-17 | 2017-05-09 | Samsung Electronics Co., Ltd. | Method and system for mapping pilot signals in multi-stream transmissions |
WO2011019229A2 (ko) * | 2009-08-14 | 2011-02-17 | 엘지전자 주식회사 | 다중 안테나를 지원하는 무선 통신 시스템에서 하향링크 참조신호를 전송하는 방법 및 장치 |
KR101276855B1 (ko) | 2010-03-08 | 2013-06-18 | 엘지전자 주식회사 | 프리코딩 행렬 정보 전송방법 및 사용자기기와, 프리코딩 행렬 구성방법 및 기지국 |
CN102347817B (zh) * | 2010-08-02 | 2014-01-08 | 华为技术有限公司 | 通知参考信号配置信息的方法及设备 |
US9794817B2 (en) | 2012-06-24 | 2017-10-17 | Lg Electronics Inc. | Method and apparatus for reporting channel state information in wireless communication system |
US9027243B2 (en) * | 2012-10-23 | 2015-05-12 | General Electric Company | Method and system for replacing a single wind turbine blade |
-
2012
- 2012-08-30 CN CN201210316659.9A patent/CN103687010B/zh active Active
-
2013
- 2013-08-29 WO PCT/CN2013/082598 patent/WO2014032606A1/zh active Application Filing
- 2013-08-29 US US14/424,433 patent/US9660779B2/en active Active
- 2013-08-29 TW TW102130968A patent/TW201409961A/zh unknown
- 2013-08-29 EP EP13834226.6A patent/EP2892290B1/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101877865A (zh) * | 2009-04-30 | 2010-11-03 | 中兴通讯股份有限公司 | 发送测量参考信号的方法、***以及基站和中继站 |
CN102938688A (zh) * | 2011-08-15 | 2013-02-20 | 上海贝尔股份有限公司 | 用于多维天线阵列的信道测量和反馈的方法和设备 |
CN102412885A (zh) * | 2011-11-25 | 2012-04-11 | 西安电子科技大学 | Lte中的三维波束赋形方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2892290A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105322995A (zh) * | 2014-07-30 | 2016-02-10 | 电信科学技术研究院 | Mimo***中的导频发送方法、信道测量方法及装置 |
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