WO2021203961A1 - 信道状态信息参考信号传输方法及装置 - Google Patents

信道状态信息参考信号传输方法及装置 Download PDF

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Publication number
WO2021203961A1
WO2021203961A1 PCT/CN2021/082386 CN2021082386W WO2021203961A1 WO 2021203961 A1 WO2021203961 A1 WO 2021203961A1 CN 2021082386 W CN2021082386 W CN 2021082386W WO 2021203961 A1 WO2021203961 A1 WO 2021203961A1
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type
resource block
block group
frequency domain
csi
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PCT/CN2021/082386
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English (en)
French (fr)
Inventor
李永
吴昊
鲁照华
王瑜新
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中兴通讯股份有限公司
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Priority to EP21784018.0A priority Critical patent/EP4135246A4/en
Priority to US17/796,752 priority patent/US20240030976A1/en
Publication of WO2021203961A1 publication Critical patent/WO2021203961A1/zh

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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
    • H04L5/0037—Inter-user or inter-terminal allocation
    • H04L5/0039—Frequency-contiguous, i.e. with no allocation of frequencies for one user or terminal between the frequencies allocated to another
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • 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
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • 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
    • 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

Definitions

  • the present invention relates to the field of communications, and in particular to a method and device for transmitting channel state information reference signals.
  • the 5th generation New Radio (5G NR) wireless communication network is designed based on Orthogonal Frequency Division Multiplex (OFDM) technology.
  • the time domain unit structure of wireless communication network transmission using OFDM technology is that a certain number of OFDM symbols form a time slot, and a certain number of time slots form a wireless frame; the frequency domain unit structure of transmission is a certain number of subcarriers
  • a resource block (Resource Block, referred to as RB for short) is formed.
  • the wireless communication system may formulate a transmission strategy according to the channel state information (Channel State Information, referred to as CSI). As the performance of the wireless communication system improves, its complexity also increases.
  • CSI Channel State Information
  • the channel state information reference signal (Channel State Information Reference Signal, referred to as CSI-RS) is transmitted through the antenna port and carried on the channel state information reference signal resource.
  • the number of antenna ports of the channel state information reference signal is not a fixed number. In some scenarios, the number of antenna ports is required to be large, and in some cases, the number of antenna ports is required to be small. Adopting one resource block to carry all the antenna ports of the channel state information reference signal and meeting the requirement of increasing the number of antenna ports increases the complexity of the system. For example, if the number of antenna ports of the channel state information reference signal is small, the reference signal resource carrying the antenna port occupies less radio resources; conversely, the number of antenna ports of the channel state information reference signal is large, and the reference signal of the antenna port is carried. The resource occupies more wireless resources; and other wireless signals need to be carried on the wireless resources, so the complexity of coordinating the resource occupied by the channel state information reference signal and other wireless signals increases.
  • the embodiment of the present invention provides a channel state information reference signal transmission method and device to at least solve the problem of increasing system complexity due to the unfixed number of antenna ports of the channel state information reference signal in the related art.
  • a channel state information reference signal transmission method including:
  • the configuration information includes the number of resource blocks included in a type A resource block group formed by continuous resource blocks of all ports carrying the channel state information reference signal CSI-RS;
  • a channel state information reference signal transmission method including:
  • configuration information includes the number of resource blocks included in a type A resource block group formed by continuous resource blocks of all ports carrying the channel state information reference signal CSI-RS;
  • a channel state information reference signal transmission device including:
  • the first transmission module is configured to transmit configuration information to the terminal, where the configuration information includes the number of resource blocks included in a type A resource block group formed by continuous resource blocks of all ports carrying the channel state information reference signal CSI-RS ;
  • the second transmission module is configured to transmit the CSI-RS to the terminal according to the configuration information.
  • a channel state information reference signal transmission device including:
  • the first receiving module is configured to receive configuration information, where the configuration information includes the number of resource blocks included in a type A resource block group formed by continuous resource blocks of all ports carrying the channel state information reference signal CSI-RS;
  • the second receiving module is configured to obtain the CSI-RS according to the configuration information.
  • a computer-readable storage medium in which a computer program is stored, wherein the computer program is configured to execute any of the foregoing method embodiments when running Steps in.
  • an electronic device including a memory and a processor, the memory is stored with a computer program, and the processor is configured to run the computer program to execute any of the above Steps in the method embodiment.
  • configuration information is transmitted, where the configuration information includes the number of resource blocks included in a type A resource block group formed by continuous resource blocks of all ports carrying the channel state information reference signal CSI-RS;
  • the configuration information transmits the CSI-RS to the terminal, which can solve the problem of increasing system complexity due to the unfixed number of antenna ports of the channel state information reference signal in the related art.
  • the configuration information of the number of resource blocks included in a type A resource block group is formed to transmit CSI-RS, which reduces the complexity of the system.
  • FIG. 1 is a block diagram of the hardware structure of a mobile terminal of a method for transmitting a channel state information reference signal according to an embodiment of the present invention
  • FIG. 2 is a first flowchart of a method for transmitting a channel state information reference signal according to an embodiment of the present invention
  • Fig. 3 is a second flowchart of a channel state information reference signal transmission method according to an embodiment of the present invention.
  • FIG. 4 is a block diagram of a channel state information reference signal transmission device according to an embodiment of the present invention.
  • Fig. 5 is a second block diagram of a channel state information reference signal transmission device according to an embodiment of the present invention.
  • FIG. 1 is a block diagram of the hardware structure of a mobile terminal using a channel state information reference signal transmission method according to an embodiment of the present invention.
  • the mobile terminal may include one or more ( Figure 1). Only one is shown in 1) the processor 102 (the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data.
  • the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data.
  • the above-mentioned mobile terminal may also include a transmission device 106 and an input/output device 108 for communication functions.
  • a transmission device 106 may also include a transmission device 106 and an input/output device 108 for communication functions.
  • the structure shown in FIG. 1 is only for illustration, and does not limit the structure of the above-mentioned mobile terminal.
  • the mobile terminal may also include more or fewer components than shown in FIG. 1, or have a different configuration from that shown in FIG.
  • the memory 104 may be used to store computer programs, for example, software programs and modules of application software, such as computer programs corresponding to the message receiving method in the embodiment of the present invention.
  • the processor 102 executes the computer programs stored in the memory 104 by running Various functional applications and data processing, that is, to achieve the above methods.
  • the memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory.
  • the memory 104 may further include a memory remotely provided with respect to the processor 102, and these remote memories may be connected to the mobile terminal through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.
  • the transmission device 106 is used to receive or send data via a network.
  • the above-mentioned specific examples of the network may include a wireless network provided by a communication provider of a mobile terminal.
  • the transmission device 106 includes a network adapter (Network INterface CoNtroller, NIC for short), which can be connected to other network devices through a base station to communicate with the Internet.
  • the transmission device 106 may be a radio frequency (Radio FrequeNcy, referred to as RF) module, which is used to communicate with the Internet in a wireless manner.
  • RF radio frequency
  • Fig. 2 is a flowchart 1 of a method for transmitting channel state information reference signals according to an embodiment of the present invention. As shown in Fig. 2, the process includes the following steps:
  • Step S202 Transmit configuration information to the terminal, where the configuration information includes the number of resource blocks included in a type A resource block group formed by continuous resource blocks of all ports carrying the channel state information reference signal CSI-RS;
  • Step S204 Transmit the CSI-RS to the terminal according to the configuration information.
  • a class A is formed by continuous resource blocks of all ports carrying CSI-RS.
  • the configuration information of the number of resource blocks included in the resource block group transmits the CSI-RS, which reduces the system complexity.
  • a type A resource block group is a resource block combination composed of continuous resource blocks carrying channel state information reference signals, and all ports of the channel state information reference signal appear only once in the resource block combination.
  • a resource block combination composed of continuous resource blocks carrying channel state information reference signals. All ports in the resource block combination appear only once.
  • the resource block combination is denoted as a type A resource block group; the type A resource block group is The number of resource blocks included is the number of resource blocks of all ports carrying the channel state information reference signal.
  • the number of resource blocks of all ports carrying the channel state information reference signal is how many resource blocks are used to carry all the ports of the channel state information reference signal, that is, how many resource blocks can be used to carry all the ports of the channel state information reference signal.
  • the channel state information reference signal is carried on 12 resource blocks, and the channel state information reference signal has a total of 8 ports, among which every two consecutive resource blocks carrying the channel state information reference signal carry the channel state information reference signal All 8 ports of the A resource block group; that is, the Type A resource block group includes 2 resource blocks.
  • the resource blocks in the type A resource block group are continuous; as shown in Table 1, a type A resource block group marked as type A resource block group 0 includes 4 resource blocks, namely resource block 0, Resource block 1, resource block 2, and resource block 3. There are no other resource blocks between these 4 resource blocks.
  • Resource block 0 in type A resource block group 0 Resource block 1 in class A resource block group 0
  • the resource blocks in the type A resource block group are not continuous; as shown in Table 2, a type A resource block group marked as type A resource block group 0 includes two resource blocks, namely resource block 0 , Resource block 1. There are other resource blocks between these two resource blocks.
  • Resource block 0 in type A resource block group 0 Resource blocks in non-type A resource block group 0 Resource block 1 in class A resource block group 0
  • the type A resource block groups are continuous; as shown in Table 3, there are two type A resource block groups, which are respectively marked as group 0 and group 1, and there are no other resource blocks between these two groups.
  • Resource block 0 in type A resource block group 0 Resource block 1 in class A resource block group 0
  • Resource block 0 in type A resource block group 1 Resource block 1 in type A resource block group 1
  • the type A resource block groups are not continuous; as shown in Table 4, there are two type A resource block groups, which are marked as group 0 and group 1, and there are non-type A resources between these two groups.
  • the resource block of the block group is not continuous; as shown in Table 4, there are two type A resource block groups, which are marked as group 0 and group 1, and there are non-type A resources between these two groups. The resource block of the block group.
  • Resource block 0 in type A resource block group 0 Resource block 1 in class A resource block group 0
  • Resource blocks of non-type A resource block groups Resource blocks of non-type A resource block groups Resource block 0 in type A resource block group 1 Resource block 1 in type A resource block group 1
  • the requirement that the number of ports for transmitting the channel state information reference signal can be changed is met, and the demand for radio resource occupation by the transmission of other wireless signals is coordinated.
  • the number of antenna ports that a resource block can carry is limited.
  • the maximum number of ports that a resource block can carry channel state information reference signals is limited.
  • the maximum number of ports in the current NR system is 32; the other The situation is that because of carrying other wireless signals, the number of antenna ports that can be carried by a resource block is limited.
  • the configuration information includes the number of resource blocks of all ports that carry the channel state information reference signal, which can be displayed or implicitly indicated. For example, it directly indicates the number of resource blocks included in the type A resource block group; for example, it indicates that the number of resource blocks included in the type A resource block group is two. For example, indicating the number of ports Kp of the channel state information reference signal carried in a resource block, and the number of ports N of the channel state information reference signal; the resource blocks included in the type A resource block group can be obtained by calculating the quotient of Kp divided by N number.
  • the configuration information is further used to indicate one of the following states of the type A resource block group: resource blocks in the type A resource block group are continuous; resources in the type A resource block group The blocks are not continuous; the type A resource block groups are continuous; the type A resource block groups are not continuous.
  • the configuration information further includes density information of the CSI-RS, wherein the density information of the CSI-RS is used to indicate one of the following states of the type A resource block group: the type A resource block The resource blocks in the group are continuous; the resource blocks in the type A resource block group are not continuous; the type A resource block groups are continuous; the type A resource block group is not continuous.
  • the density value of the channel state information reference signal is 1, indicating that the type A resource block group carrying the channel state information reference signal is continuous, or indicates that the resource blocks in the type A resource block group are continuous; the channel state information reference signal The density value of is less than 1, indicating that the type A resource block group is discontinuous, or indicates that the resource blocks in the type A resource block group are discontinuous.
  • the density value of the channel state information reference signal is 1, indicating that the type A resource block group is continuous, and the resource blocks in the type A resource block group are continuous; the density value of the channel state information reference signal is less than 1, indicating The type A resource block group is not continuous, and the resource blocks in the type A resource block group are continuous.
  • the information includes the channel state information and the reference signal density is the average density value per resource block average per port.
  • the density of the information including the channel state information reference signal can be expressed as the ratio of the average number of resource blocks occupied by each port to the number of resource blocks in the frequency range for transmitting the channel state information reference signal. For example, if the information includes channel state information, the density of the reference signal is 0.5, which means that the average density value per port per resource block is 0.5.
  • the channel state information reference signal occupies wireless resources. If these methods all require the base station or terminal to store or retrieve, it will undoubtedly increase the complexity of the system.
  • the density of the channel state information reference signal corresponds to or indicates the above-mentioned limited state, which not only facilitates the use of wireless resources to transmit the channel state information reference signal, but also reduces the complexity of the system.
  • the resource blocks in the type A resource block group are continuous, which means that there are no other resource blocks between adjacent resource blocks in the type A resource block group.
  • the type A resource block group is continuous, which means that there are no other resource blocks between adjacent type A resource block groups.
  • the type A resource block group has the same interval or the same position difference within the frequency domain range in which the CSI-RS is transmitted.
  • Type A resource block groups are equally spaced in the frequency domain for transmitting the channel state information reference signal, that is, the interval between adjacent type A resource block groups in the frequency domain is equal, or the position of adjacent type A resource block groups in the frequency domain The gap is equal.
  • the distance between adjacent type A resource block groups in the frequency domain is 0 resource blocks; for another example, the distance between adjacent type A resource block groups in the frequency domain is 1 resource block; for another example, adjacent The separation distance of the type A resource block group in the frequency domain is 2 resource blocks.
  • the separation distance between adjacent class A resource block groups in the frequency domain is 0 class A resource block groups; for another example, the separation distance between adjacent class A resource block groups in the frequency domain is 1 class A resource Block group size; for another example, the separation distance between adjacent type A resource block groups in the frequency domain is the size of two type A resource block groups.
  • the channel state information reference signal is transmitted on the type A resource block group.
  • the type A resource block group is equally spaced within the frequency domain range of the channel state information reference signal, so that the adjacent frequency domain positions of each port are equally spaced. The distances between adjacent positions in the frequency domain of the ports are equal, and the frequency domain positions between the ports are concentrated; avoiding the excessive frequency domain position difference between the ports and introducing the channel error between the ports, and reducing the complexity of the system .
  • the configuration information further includes the density of the type A resource block group, wherein the density of the type A resource block group is displayed or implicitly indicated in the configuration information. Further, the density of the type A resource block group is used to indicate that the type A resource block group is continuous or discontinuous in the frequency domain range in which the CSI-RS is transmitted.
  • the density of the type A resource block group is indicated in one of the following ways:
  • every M frequency domain resource blocks have a type A resource block group, where M is a positive integer
  • N is a real number
  • the density of the type A resource block group indicates the density of the type A resource block group in the frequency domain range of the transmission channel state information reference signal.
  • the configuration information indicates the density of type A resource block groups, indicating the importance of the transmitted channel state information reference signal to channel measurement.
  • the high density of type A resource block groups indicates that the system has increased the transmitted channel state For the importance of the information reference signal, the terminal should increase the frequency of measurement on the frequency to improve performance; the low density of the type A resource block group indicates that the system reduces the importance of the transmitted channel state information reference signal, and the terminal should reduce the Frequency of measurement on frequency to reduce workload.
  • the configuration information indicates the density of the type A resource block group, which facilitates the terminal to use the density information to receive the reference signal of the transmission channel state information, and reduces the complexity of blind detection.
  • a method for indicating the density of type A resource block groups is indicated by indicating the number of type A resource block groups in the frequency domain range for transmitting the channel state information reference signal. Another method for indicating the density of type A resource block groups indicates the number of type A resource block groups averaged to a certain frequency domain unit. Another method for indicating the density of type A resource block groups indicates the difference between adjacent type A resource block groups in the frequency domain.
  • Another method for indicating the density of type A resource block groups indicates the separation distance of adjacent type A resource block groups in the frequency domain. Another method for indicating the density of type A resource block groups is to indicate one type A resource block group for every M frequency domain resource blocks, where M is a positive integer. Another method for indicating the density of type A resource block groups indicates that there are N type A resource block groups in the frequency domain of the size of each type A resource block group on average, where N is a real number.
  • the density of the type A resource block group is indicated by indicating the number of type A resource block groups in the frequency domain for transmitting the CSI-RS, wherein if the density of the type A resource block group is greater than Or equal to a preset threshold, the type A resource block group is continuous in the frequency domain for transmitting the CSI-RS; if the density of the type A resource block group is less than the preset threshold, the type A resource block The group is non-contiguous in the frequency domain range in which the CSI-RS is transmitted.
  • Type A resource block groups can have a lot of presentation modes in the frequency domain of transmitting channel state information reference signals, which will increase the complexity of the system. For example, base stations or terminals are required to store these presentation modes and corresponding processing modes, and prepare The processing power of these methods.
  • dividing the type A resource block group into continuous and discontinuous in the frequency domain range of transmitting the channel state information reference signal reduces the number of presentation modes of the type A resource block group in the frequency domain range of transmitting the channel state information reference signal.
  • Indicate whether the type A resource block group is continuous in the frequency domain range of the transmission channel state information reference signal which is beneficial for the terminal to receive the transmission channel state information reference signal in the indicated manner, and reduces the complexity of the terminal receiving operation.
  • the density of the type A resource block group indicates whether the type A resource block group is continuous in the frequency domain of transmitting the channel state information reference signal, which can save the signaling overhead and indicate the frequency of the type A resource block group transmitting the channel state information reference signal. Whether the domain is continuous, thereby reducing the complexity of the system.
  • One way of indicating is that the density of the type A resource block group is greater than or equal to a threshold value (that is, the above-mentioned preset threshold), indicating that the type A resource block group is continuous in the frequency domain range of the channel state information reference signal.
  • a threshold value that is, the above-mentioned preset threshold
  • Another indication method is that the density of the type A resource block group is less than or equal to a threshold value, indicating that the type A resource block group is discontinuous in the frequency domain range for transmitting the channel state information reference signal.
  • the port group of the CSI-RS has a one-to-one correspondence with the resource blocks in the type A resource block group.
  • the channel state information reference signal is carried on the type A resource block group, and the ports of the channel state information reference signal are divided into X groups, where X is the number of resource blocks included in the type A resource block group, the port group and the type A resource block group There is a one-to-one correspondence between the resource blocks within, that is, one port group is carried by one corresponding resource block in the type A resource block group.
  • the number of resource blocks included in a type A resource block group is 2, and the channel state information reference signal ports are divided into 2 groups, the first group of ports is carried on one resource block in the type A resource block group, and the second group of ports carries On another resource block in the A resource block group.
  • the number of resource blocks included in the type A resource block group is 3, the ports of the channel state information reference signal are divided into 3 groups, the first group of ports is carried on one resource block in the type A resource block group, and the second group of ports It is carried on another resource block in the type A resource block group, and the third group of ports is carried on another resource block in the type A resource block group.
  • the ports of the channel state information reference signal are grouped, and each group of ports is carried on the corresponding resource block, which is convenient for the transmitting side to transmit the channel state on each port according to the resource block
  • the information reference signal is also convenient for the receiving side to detect the channel state information reference signal on each port according to the resource block, which reduces the complexity of the system.
  • the corresponding manner of the port group and the resource block in the type A resource block group includes one of the following:
  • the port sequence number of the CSI-RS corresponds to the sequence number of the resource block in the type A resource block group
  • the port sequence number of the CSI-RS corresponds to the frequency of the resource block in the type A resource block group. Specifically, the port sequence number corresponds to the frequency of the resource block in the type A resource block group;
  • the ports with the same remainder obtained by calculating the remainder of the number of resource blocks in the type A resource block group by the port sequence number of the CSI-RS belong to the same group of ports. Specifically, the ports are divided into X groups, and the ports with the same remainder of the port sequence numbers are In the same group, the remainder is the remainder of the port number performing the remainder of the number of resource blocks in the type A resource block group, the port number is the dividend, and the number of resource blocks in the type A resource block group is the divisor.
  • the sequence of port numbers from low to high corresponds to the sequence of resource block numbers in a type A resource block group; that is, the port group with low port number corresponds to the resource block with low number in the type A resource block group, and the high port
  • the serial number port group corresponds to the resource block with the higher serial number in the type A resource block group.
  • a type A resource block group includes 2 resource blocks, namely resource block 0 and resource block 1.
  • the ports are divided into two groups, the 0th group of ports includes port 0 and port 1, and the first group of ports includes port 2 and port 3. ;
  • the 0th group of ports corresponds to resource block 0, and the 1st group of ports corresponds to resource block 1.
  • the sequence of port sequence numbers from low to high corresponds to the sequence of resource block numbers in a type A resource block group from high to low; that is, a port group with a low port sequence number corresponds to a resource block with a high sequence number in a type A resource block group.
  • the port group of the port sequence number corresponds to the resource block with the low sequence number in the type A resource block group.
  • a type A resource block group includes 2 resource blocks, namely resource block 0 and resource block 1.
  • the ports are divided into two groups, the 0th group of ports includes port 0 and port 1, and the first group of ports includes port 2 and port 3. ;
  • the 0th group of ports corresponds to resource block 1, and the 1st group of ports corresponds to resource block 2.
  • the order of port sequence numbers from low to high corresponds to the order of resource block frequencies in a type A resource block group; that is, a port group with a low port number corresponds to a low frequency resource block in a type A resource block group, and a high port
  • the serial number of the port group corresponds to the high-frequency resource block in the type A resource block group.
  • a type A resource block group includes two resource blocks, namely resource block 0 and resource block 1.
  • the frequency domain position of resource block 0 is lower than the frequency domain position of resource block 1; the ports are divided into two groups, group 0 Ports include port 0 and port 1.
  • the first group of ports includes port 2 and port 3; the 0th group of ports corresponds to resource block 0, and the first group of ports corresponds to resource block 1.
  • the order of port sequence numbers from low to high corresponds to the order of resource block frequencies in a type A resource block group; that is, a port group with a low port number corresponds to a high frequency resource block in a type A resource block group.
  • the port group of the port sequence number corresponds to the low-frequency resource block in the type A resource block group.
  • a type A resource block group includes two resource blocks, namely resource block 0 and resource block 1.
  • the frequency domain position of resource block 0 is lower than the frequency domain position of resource block 1; the ports are divided into two groups, group 0 Ports include port 0 and port 1.
  • the first group of ports includes port 2 and port 3; the 0th group of ports corresponds to resource block 1, and the first group of ports corresponds to resource block 2.
  • the existing resource block frequency position sequence can be used to establish the corresponding relationship with the port group, thereby reducing the complexity of the system.
  • the number of resource blocks in a type A resource block group is 2, and the ports are grouped according to the remainder of the port number divided by 2.
  • a group of ports with a remainder of 0 is carried by one resource block in the type A resource block group, and the remainder is 1.
  • a group of ports is carried by another resource block in the Type A resource block group.
  • the number of resource blocks in a type A resource block group is 3, and the ports are grouped according to the remainder of the port number divided by 3.
  • a group of ports with a remainder of 0 is carried by one resource block in the type A resource block group, and the remainder is A group of ports of 1 is carried by another resource block in the type A resource block group, and a group of ports with a remainder of 2 is carried by a remaining resource block in the type A resource block group.
  • the configuration information further includes: type B frequency domain width, wherein the type B frequency domain width is used to indicate the number of resource blocks included in the type A resource block group, and the type B frequency domain width
  • the domain width includes one of the following: the frequency domain width of the channel state information fed back by the terminal; the frequency domain width of the CSI-RS; the frequency domain width of the bandwidth part of the system.
  • the base station transmits the channel state information reference signal
  • the terminal measures the channel state information reference signal, and then feeds back the channel state information.
  • the number of resource blocks included in the type A resource block group is determined by the bandwidth of the detected channel state information reference signal.
  • the frequency domain width of the channel state information fed back by the terminal is the bandwidth of the actually detected channel state information reference signal
  • the frequency domain width of the channel state information reference signal indicates the bandwidth of the detected channel state information reference signal
  • the frequency of the system bandwidth part is the bandwidth of the channel state information reference signal that can be detected.
  • the configuration information includes the type B frequency domain width, and the type B frequency domain width implicitly indicates the number of resource blocks included in the type A resource block group, which can reduce signaling overhead and reduce system complexity.
  • the number of resource blocks included in the type A resource block group increases as the width of the type B frequency domain increases; for example, it increases in stages.
  • the number of resource blocks included in the type A resource block group is jointly indicated by the type B frequency domain width and the number of channel state information reference signal ports carried by a single resource block; for example, the number of channel state information reference signal ports carried by a single resource block increases , The number of resource blocks included in the Type A resource block group is reduced.
  • the type B frequency domain width is also used to indicate the number of resource blocks included in the type A resource block group in conjunction with an adjustment coefficient, wherein the adjustment coefficient used to adjust the type A resource block group includes The number of resource blocks.
  • the number of resource blocks included in the type A resource block group is jointly indicated by the type B frequency domain width and the adjustment coefficient.
  • the adjustment coefficient is used to adjust the number of resource blocks included in the type A resource block group to control the measurement performance using the reference signal; thereby, the complexity of the system is reduced while the measurement performance is guaranteed.
  • the number of resource blocks included in the type A resource block group and the adjustment coefficient have a monotonic relationship; for example, a monotonic increase or a monotonic decrease.
  • the configuration information includes the adjustment parameter.
  • the configuration information further includes precoding frequency domain granularity fed back by the terminal, wherein the precoding frequency domain granularity is determined by the resource blocks included in the type A resource block group
  • the number indication can be an implicit indication.
  • the frequency domain granularity of the precoding is indicated by the number of resource blocks included in the type A resource block group in one of the following ways:
  • the frequency domain granularity of the precoding is a multiple of the number of resource blocks included in the type A resource block group;
  • the frequency domain granularity of the precoding is equal to the number of resource blocks included in the type A resource block group;
  • the frequency domain granularity of the precoding is jointly determined by the number of resource blocks included in the type A resource block group and the density of the CSI-RS;
  • the base station transmits the channel state information reference signal
  • the terminal measures the channel state information reference signal
  • the channel state information fed back includes precoding information applied to the antenna port
  • the precoding information is presented in a certain frequency domain unit, that is, according to a certain frequency domain granularity, that is, in what frequency domain range is the precoding information? What is the value of the encoding.
  • the frequency domain granularity of precoding is an integer multiple of the number of resource blocks included in the type A resource block group.
  • the frequency domain granularity of precoding is the number of resource blocks included in the type A resource block group.
  • the frequency domain granularity of precoding is jointly determined by the number of resource blocks included in the type A resource block group and the density of the channel state information reference signal.
  • the frequency domain granularity of precoding has a monotonically increasing relationship with the number of resource blocks included in the type A resource block group, and a monotonically decreasing relationship with the density of the channel state information reference signal.
  • the configuration information further includes the frequency domain range of the channel state information CSI fed back by the terminal, wherein the frequency domain granularity of the subband is used to represent the frequency domain range of the CSI, and the subband includes The number of the type A resource block groups is an integer.
  • the configuration information also includes the frequency domain range of the channel state information fed back by the terminal, and the frequency domain range of the channel state information is represented by the subband as the frequency domain granularity, and the subband includes an integer number of Type A resource block groups.
  • Type A resource block groups There are an integer number of Type A resource block groups in the subband, which facilitates the measurement of the channel state in the subband, avoids cross-subband measurement, and reduces the complexity of the system.
  • 1 subband includes 1 type A resource block group.
  • one subband includes two type A resource block groups.
  • 1 subband includes 3 type A resource block groups.
  • FIG. 3 is a second flowchart of the method for transmitting a channel state information reference signal according to an embodiment of the present invention, as shown in FIG. 3, include:
  • Step S302 receiving configuration information, where the configuration information includes the number of resource blocks included in a type A resource block group formed by continuous resource blocks of all ports carrying the channel state information reference signal CSI-RS;
  • Step S304 Receive the CSI-RS according to the configuration information.
  • the configuration information from the base station is received, and the channel state information reference signal is received according to the configuration information; wherein, the configuration information includes: the number of resource blocks included in a type A resource block group; a type A resource block group is carried by the channel state A resource block combination formed by consecutive resource blocks of the information reference signal, in which all ports of the channel state information reference signal appear only once.
  • a class A is formed by continuous resource blocks of all ports carrying CSI-RS.
  • the configuration information of the number of resource blocks included in the resource block group transmits the CSI-RS, which reduces the system complexity.
  • the configuration information is further used to indicate one of the following states of the type A resource block group:
  • the resource blocks in the type A resource block group are continuous;
  • the resource blocks in the type A resource block group are discontinuous
  • the type A resource block groups are continuous;
  • the type A resource block groups are not continuous.
  • the configuration information further includes density information of the CSI-RS, where the density information of the CSI-RS is used to indicate one of the following states of the type A resource block group:
  • Resource blocks in the type A resource block group are continuous;
  • the resource blocks in the type A resource block group are not continuous;
  • the A resource block groups are continuous;
  • the type A resource block groups are not continuous.
  • the type A resource block group has the same interval or the same position difference within the frequency domain range in which the CSI-RS is transmitted.
  • the configuration information further includes the density of the type A resource block group, wherein the density of the type A resource block group is displayed or implicitly indicated in the configuration information.
  • the density of the type A resource block group is indicated in one of the following ways:
  • every M frequency domain resource blocks have a type A resource block group, where M is a positive integer
  • N is a real number
  • the density of the type A resource block group is used to indicate that the type A resource block group is continuous or discontinuous in the frequency domain range in which the CSI-RS is transmitted.
  • the density of the type A resource block group is indicated by indicating the number of type A resource block groups in the frequency domain for transmitting the CSI-RS, where if the type A resource block group If the density of the type A resource block group is greater than or equal to the preset threshold, the type A resource block group is continuous in the frequency domain range where the CSI-RS is transmitted; if the density of the type A resource block group is less than the preset threshold, the type A resource block group The class resource block group is non-continuous in the frequency domain range in which the CSI-RS is transmitted.
  • the port group of the CSI-RS has a one-to-one correspondence with the resource blocks in the type A resource block group.
  • the corresponding manner of the port group and the resource block in the type A resource block group includes one of the following:
  • the port sequence number of the CSI-RS corresponds to the sequence number of the resource block in the type A resource block group
  • the port sequence number of the CSI-RS corresponds to the frequency of the resource block in the type A resource block group
  • Ports with the same remainder obtained by calculating the remainder of the number of resource blocks in the type A resource block group by the port sequence number of the CSI-RS are the same group of ports.
  • the configuration information further includes: type B frequency domain width, where the type B frequency domain width is used to indicate the number of resource blocks included in the type A resource block group, and the type B frequency domain The width includes one of the following:
  • the frequency domain width of the CSI-RS is the frequency domain width of the CSI-RS
  • the frequency domain width of the bandwidth part of the system is the frequency domain width of the bandwidth part of the system.
  • the type B frequency domain width is further used to indicate the number of resource blocks included in the type A resource block group in conjunction with an adjustment coefficient, wherein the adjustment coefficient is used to adjust the type A resource The number of resource blocks included in the block group.
  • the configuration information further includes the frequency domain granularity of the precoding fed back by the terminal, wherein the frequency domain granularity of the precoding is determined by the number of resource blocks included in the type A resource block group instruct.
  • the frequency domain granularity of the precoding is indicated by the number of resource blocks included in the type A resource block group in one of the following ways:
  • the frequency domain granularity of the precoding is a multiple of the number of resource blocks included in the type A resource block group;
  • the frequency domain granularity of the precoding is equal to the number of resource blocks included in the type A resource block group;
  • the frequency domain granularity of the precoding is jointly determined by the number of resource blocks included in the type A resource block group and the density of the CSI-RS;
  • the configuration information further includes the frequency domain range of the channel state information CSI fed back by the terminal, wherein the frequency domain granularity of the subband is used to indicate the frequency domain range of the CSI, and the subband includes The number of the type A resource block groups is an integer.
  • the method according to the above embodiment can be implemented by means of software plus the necessary general hardware platform, of course, it can also be implemented by hardware, but in many cases the former is Better implementation.
  • the technical solution of the present invention essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes a number of instructions to enable a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the method described in each embodiment of the present invention.
  • a channel state information reference signal transmission device which is used to implement the above-mentioned embodiments and preferred implementations, and what has been described will not be repeated.
  • the term "module” can implement a combination of software and/or hardware with predetermined functions.
  • the devices described in the following embodiments are preferably implemented by software, implementation by hardware or a combination of software and hardware is also possible and conceived.
  • Fig. 4 is a block diagram 1 of a channel state information reference signal transmission device according to an embodiment of the present invention, as shown in Fig. 4, including:
  • the first transmission module 42 is configured to transmit configuration information, where the configuration information includes the number of resource blocks included in a type A resource block group formed by continuous resource blocks of all ports carrying the channel state information reference signal CSI-RS;
  • the second transmission module 44 is configured to transmit the CSI-RS to the terminal according to the configuration information.
  • the configuration information is also used to indicate one of the following states of the type A resource block group:
  • the resource blocks in the type A resource block group are continuous;
  • the resource blocks in the type A resource block group are discontinuous
  • the type A resource block groups are continuous;
  • the type A resource block groups are not continuous.
  • the configuration information further includes density information of the CSI-RS, where the density information of the CSI-RS is used to indicate one of the following states of the type A resource block group:
  • Resource blocks in the type A resource block group are continuous;
  • the resource blocks in the type A resource block group are not continuous;
  • the A resource block groups are continuous;
  • the type A resource block groups are not continuous.
  • the type A resource block group has the same interval or the same position difference within the frequency domain range in which the CSI-RS is transmitted.
  • the configuration information further includes the density of the type A resource block group, wherein the density of the type A resource block group is displayed or implicitly indicated in the configuration information.
  • the density of the type A resource block group is indicated in one of the following ways:
  • every M frequency domain resource blocks have a type A resource block group, where M is a positive integer
  • N is a real number
  • the density of the type A resource block group is used to indicate that the type A resource block group is continuous or discontinuous in the frequency domain for transmitting the CSI-RS.
  • the density of the type A resource block group is indicated by indicating the number of type A resource block groups in the frequency domain for transmitting the CSI-RS, wherein if the type A resource block The density of the group is greater than or equal to the preset threshold, and the type A resource block group is continuous in the frequency domain for transmitting the CSI-RS; if the density of the type A resource block group is less than the preset threshold, the The type A resource block group is non-continuous in the frequency domain range where the CSI-RS is transmitted.
  • the port group of the CSI-RS has a one-to-one correspondence with the resource blocks in the type A resource block group.
  • the corresponding manner of the port group and the resource block in the type A resource block group includes one of the following:
  • the port sequence number of the CSI-RS corresponds to the sequence number of the resource block in the type A resource block group
  • the port sequence number of the CSI-RS corresponds to the frequency of the resource block in the type A resource block group
  • Ports with the same remainder obtained by calculating the remainder of the number of resource blocks in the type A resource block group by the port sequence number of the CSI-RS are the same group of ports.
  • the configuration information further includes: type B frequency domain width, wherein the type B frequency domain width is used to indicate the number of resource blocks included in the type A resource block group, and the type B frequency domain
  • the domain width includes one of the following:
  • the frequency domain width of the CSI-RS is the frequency domain width of the CSI-RS
  • the frequency domain width of the bandwidth part of the system is the frequency domain width of the bandwidth part of the system.
  • the type B frequency domain width is further used to indicate the number of resource blocks included in the type A resource block group in conjunction with an adjustment coefficient, wherein the adjustment coefficient is used to adjust the type A resource block group. The number of resource blocks included in the resource block group.
  • the configuration information further includes precoding frequency domain granularity fed back by the terminal, wherein the precoding frequency domain granularity is determined by the resource blocks included in the type A resource block group Number indication.
  • the frequency domain granularity of the precoding is indicated by the number of resource blocks included in the type A resource block group in one of the following ways:
  • the frequency domain granularity of the precoding is a multiple of the number of resource blocks included in the type A resource block group;
  • the frequency domain granularity of the precoding is equal to the number of resource blocks included in the type A resource block group;
  • the frequency domain granularity of the precoding is jointly determined by the number of resource blocks included in the type A resource block group and the density of the CSI-RS;
  • the configuration information further includes the frequency domain range of the channel state information CSI fed back by the terminal, wherein the frequency domain granularity of the subband is used to represent the frequency domain range of the CSI, and the subband includes The number of the type A resource block groups is an integer.
  • FIG. 5 is a block diagram of the apparatus for transmitting channel state information reference signals according to an embodiment of the present invention. As shown in FIG. 5, it includes :
  • the first receiving module 52 is configured to receive configuration information, where the configuration information includes the number of resource blocks included in a type A resource block group formed by continuous resource blocks of all ports carrying the channel state information reference signal CSI-RS;
  • the second receiving module 54 is configured to receive the CSI-RS according to the configuration information.
  • the configuration information is also used to indicate one of the following states of the type A resource block group:
  • the resource blocks in the type A resource block group are continuous;
  • the resource blocks in the type A resource block group are discontinuous
  • the type A resource block groups are continuous;
  • the type A resource block groups are not continuous.
  • the configuration information further includes density information of the CSI-RS, where the density information of the CSI-RS is used to indicate one of the following states of the type A resource block group:
  • Resource blocks in the type A resource block group are continuous;
  • the resource blocks in the type A resource block group are not continuous;
  • the A resource block groups are continuous;
  • the type A resource block groups are not continuous.
  • the type A resource block group has the same interval or the same position difference within the frequency domain range in which the CSI-RS is transmitted.
  • the configuration information further includes the density of the type A resource block group, wherein the density of the type A resource block group is displayed or implicitly indicated in the configuration information.
  • the density of the type A resource block group is indicated in one of the following ways:
  • every M frequency domain resource blocks have a type A resource block group, where M is a positive integer
  • N is a real number
  • the density of the type A resource block group is used to indicate that the type A resource block group is continuous or discontinuous in the frequency domain for transmitting the CSI-RS.
  • the density of the type A resource block group is indicated by indicating the number of type A resource block groups in the frequency domain for transmitting the CSI-RS, wherein if the type A resource block The group density is greater than or equal to the preset threshold, and the type A resource block group is continuous in the frequency domain for transmitting the CSI-RS; if the type A resource block group density is less than the preset threshold, the The type A resource block group is non-continuous in the frequency domain range where the CSI-RS is transmitted.
  • the port group of the CSI-RS has a one-to-one correspondence with the resource blocks in the type A resource block group.
  • the corresponding manner of the port group and the resource block in the type A resource block group includes one of the following:
  • the port sequence number of the CSI-RS corresponds to the sequence number of the resource block in the type A resource block group
  • the port sequence number of the CSI-RS corresponds to the frequency of the resource block in the type A resource block group
  • Ports with the same remainder obtained by calculating the remainder of the number of resource blocks in the type A resource block group by the port sequence number of the CSI-RS are the same group of ports.
  • the configuration information further includes: type B frequency domain width, wherein the type B frequency domain width is used to indicate the number of resource blocks included in the type A resource block group, and the type B frequency domain width
  • the domain width includes one of the following:
  • the frequency domain width of the CSI-RS is the frequency domain width of the CSI-RS
  • the frequency domain width of the bandwidth part of the system is the frequency domain width of the bandwidth part of the system.
  • the type B frequency domain width is further used to indicate the number of resource blocks included in the type A resource block group in conjunction with an adjustment coefficient, wherein the adjustment coefficient is used to adjust the type A resource block group. The number of resource blocks included in the resource block group.
  • the configuration information further includes precoding frequency domain granularity fed back by the terminal, wherein the precoding frequency domain granularity is determined by the resource blocks included in the type A resource block group Number indication.
  • the frequency domain granularity of the precoding is indicated by the number of resource blocks included in the type A resource block group in one of the following ways:
  • the frequency domain granularity of the precoding is a multiple of the number of resource blocks included in the type A resource block group;
  • the frequency domain granularity of the precoding is equal to the number of resource blocks included in the type A resource block group;
  • the frequency domain granularity of the precoding is jointly determined by the number of resource blocks included in the type A resource block group and the density of the CSI-RS;
  • the configuration information further includes the frequency domain range of the channel state information CSI fed back by the terminal, wherein the frequency domain granularity of the subband is used to represent the frequency domain range of the CSI, and the subband includes The number of the type A resource block groups is an integer.
  • each of the above modules can be implemented by software or hardware.
  • it can be implemented in the following manner, but not limited to this: the above modules are all located in the same processor; or, the above modules can be combined in any combination.
  • the forms are located in different processors.
  • the embodiment of the present invention also provides a computer-readable storage medium in which a computer program is stored, wherein the computer program is configured to execute the steps in any one of the foregoing method embodiments when running.
  • the above-mentioned storage medium may be configured to store a computer program for executing the following steps:
  • the above-mentioned storage medium may also be configured to store a computer program for executing the following steps:
  • S21 Receive configuration information, where the configuration information includes the number of resource blocks included in a type A resource block group formed by continuous resource blocks of all ports carrying the channel state information reference signal CSI-RS;
  • the above-mentioned storage medium may include but is not limited to: U disk, Read-ONly Memory (Read-ONly Memory, ROM for short), Random Access Memory (RAM for short), mobile hard disk, Various media such as magnetic disks or optical disks that can store computer programs.
  • U disk Read-ONly Memory
  • ROM Read-ONly Memory
  • RAM Random Access Memory
  • mobile hard disk Various media such as magnetic disks or optical disks that can store computer programs.
  • An embodiment of the present invention also provides an electronic device, including a memory and a processor, the memory is stored with a computer program, and the processor is configured to run the computer program to execute the steps in any of the foregoing method embodiments.
  • the above-mentioned electronic device may further include a transmission device and an input-output device, wherein the transmission device is connected to the aforementioned processor, and the input-output device is connected to the aforementioned processor.
  • the above-mentioned processor may be configured to execute the following steps through a computer program:
  • the above-mentioned processor may also be configured to execute the following steps through a computer program:
  • S21 Receive configuration information, where the configuration information includes the number of resource blocks included in a type A resource block group formed by continuous resource blocks of all ports carrying the channel state information reference signal CSI-RS;
  • modules or steps of the present invention can be implemented by a general computing device, and they can be concentrated on a single computing device or distributed in a network composed of multiple computing devices.
  • they can be implemented with program codes executable by a computing device, so that they can be stored in a storage device for execution by the computing device, and in some cases, can be executed in a different order than here.
  • the embodiments of the present invention applied to the communication field, can solve the problem of increasing system complexity due to the unfixed number of antenna ports of the channel state information reference signal in the related art, and is formed by continuous resource blocks of all ports carrying CSI-RS
  • the configuration information of the number of resource blocks included in a type A resource block group transmits the CSI-RS, which reduces the system complexity.

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Abstract

本发明实施例提供了一种信道状态信息参考信号传输方法及装置，其中，该方法包括：传输配置信息给终端，其中，所述配置信息包括承载信道状态信息参考信号CSI-RS的所有端口的连续资源块所构成的一个A类资源块组包括的资源块数目；根据所述配置信息将所述CSI-RS传输给所述终端，可以解决相关技术中由于信道状态信息参考信号的天线端口数目不固定增加系统复杂度的问题，通过携带有CSI-RS的所有端口的连续资源块所构成的一个A类资源块组包括的资源块数目的配置信息传输CSI-RS，降低了系统复杂度。

Description

信道状态信息参考信号传输方法及装置 技术领域
本发明涉及通信领域，具体而言，涉及一种信道状态信息参考信号传输方法及装置。
背景技术
无线通信为人类的生活与生产提供了便利，提高了效率。第5代新无线电(the 5th generation New Radio，简称为5G NR)无线通信网络基于正交频分复用符号(Orthogonal Frequency Division Multiplex，简称为OFDM)技术设计。采用OFDM技术进行无线通信网络传输的时域单位结构是以一定数量的OFDM符号形成一个时隙，并以一定数量的时隙形成一个无线帧；传输的频域单位结构是以一定数量的子载波形成资源块(Resource Block，简称为RB)。在无线通信网络传输过程中，无线通信系统可以根据信道状态信息(Channel State Information，简称为CSI)制定传输策略。在无线通信系统性能提高的同时，其复杂度也随之提高。
信道状态信息参考信号(Channel State Information Reference Signal，简称为CSI-RS)通过天线端口发射，承载于信道状态信息参考信号资源上。信道状态信息参考信号的天线端口数目不是一个固定的数目，有的场景下需要的天线端口数目较多，有的情况下需要的天线端口数目较小。采用一个资源块承载信道状态信息参考信号的所有的天线端口，并满足天线端口数目从小到大的需求增加了系统的复杂度。例如，信道状态信息参考信号的天线端口数目小，承载所述天线端口的参考信号资源占据的无线资源就少；反之，信道状态信息参考信号的天线端口数目大，承载所述天线端口的参考信号资源占据的无线资源就多；而无线资源上还需要承载其它无线信号，因此协调信道状态信息参考信号与其它无线信号所占的资源的复杂度增加。
针对相关技术中由于信道状态信息参考信号的天线端口数目不固定 增加系统复杂度的问题，尚未提出解决方案。
发明内容
本发明实施例提供了一种信道状态信息参考信号传输方法及装置，以至少解决相关技术中由于信道状态信息参考信号的天线端口数目不固定增加系统复杂度的问题。
根据本发明的一个实施例，提供了一种信道状态信息参考信号传输方法，包括：
传输配置信息给终端，其中，所述配置信息包括承载信道状态信息参考信号CSI-RS的所有端口的连续资源块所构成的一个A类资源块组包括的资源块数目；
根据所述配置信息将所述CSI-RS传输给所述终端。
根据本发明的另一个实施例，还提供了一种信道状态信息参考信号传输方法，包括：
接收配置信息，其中，所述配置信息包括承载信道状态信息参考信号CSI-RS的所有端口的连续资源块所构成的一个A类资源块组包括的资源块数目；
根据所述配置信息接收所述CSI-RS。
根据本发明的另一个实施例，还提供了一种信道状态信息参考信号传输装置，包括：
第一传输模块，设置为传输配置信息给终端，其中，所述配置信息包括承载信道状态信息参考信号CSI-RS的所有端口的连续资源块所构成的一个A类资源块组包括的资源块数目；
第二传输模块，设置为根据所述配置信息将所述CSI-RS传输给所述终端。
根据本发明的另一个实施例，还提供了一种信道状态信息参考信号传输装置，包括：
第一接收模块，设置为接收配置信息，其中，所述配置信息包括承载信道状态信息参考信号CSI-RS的所有端口的连续资源块所构成的一个A类资源块组包括的资源块数目；
第二接收模块，设置为根据所述配置信息获取所述CSI-RS。
根据本发明的又一个实施例，还提供了一种计算机可读的存储介质，所述存储介质中存储有计算机程序，其中，所述计算机程序被设置为运行时执行上述任一项方法实施例中的步骤。
根据本发明的又一个实施例，还提供了一种电子装置，包括存储器和处理器，所述存储器中存储有计算机程序，所述处理器被设置为运行所述计算机程序以执行上述任一项方法实施例中的步骤。
通过本发明实施例，传输配置信息，其中，所述配置信息包括承载信道状态信息参考信号CSI-RS的所有端口的连续资源块所构成的一个A类资源块组包括的资源块数目；根据所述配置信息将所述CSI-RS传输给终端，可以解决相关技术中由于信道状态信息参考信号的天线端口数目不固定增加系统复杂度的问题，通过携带有CSI-RS的所有端口的连续资源块所构成的一个A类资源块组包括的资源块数目的配置信息传输CSI-RS，降低了系统复杂度。
附图说明
图1是本发明实施例的信道状态信息参考信号传输方法的移动终端的硬件结构框图；
图2是根据本发明实施例的信道状态信息参考信号传输方法的流程图一；
图3是根据本发明实施例的信道状态信息参考信号传输方法的流程图二；
图4是根据本发明实施例的信道状态信息参考信号传输装置的框图一；
图5是根据本发明实施例的信道状态信息参考信号传输装置的框图二。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明。
需要说明的是，本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
实施例1
本申请实施例一所提供的方法实施例可应用于无线通信网络中的基站侧或终端侧。可以在基站或移动终端、计算机终端或者类似的运算装置中执行。以运行在移动终端上为例，图1是本发明实施例的一种信道状态信息参考信号传输方法的移动终端的硬件结构框图，如图1所示，移动终端可以包括一个或多个(图1中仅示出一个)处理器102(处理器102可以包括但不限于微处理器MCU或可编程逻辑器件FPGA等的处理装置)和用于存储数据的存储器104，可选地，上述移动终端还可以包括用于通信功能的传输设备106以及输入输出设备108。本领域普通技术人员可以理解，图1所示的结构仅为示意，其并不对上述移动终端的结构造成限定。例如，移动终端还可包括比图1中所示更多或者更少的组件，或者具有与图1所示不同的配置。
存储器104可用于存储计算机程序，例如，应用软件的软件程序以及模块，如本发明实施例中的报文接收方法对应的计算机程序，处理器102通过运行存储在存储器104内的计算机程序，从而执行各种功能应用以及数据处理，即实现上述的方法。存储器104可包括高速随机存储器，还可包括非易失性存储器，如一个或者多个磁性存储装置、闪存、或者其他非易失性固态存储器。在一些实例中，存储器104可进一步包括相对于处理器102远程设置的存储器，这些远程存储器可以通过网络连接至移动终端。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
传输装置106用于经由一个网络接收或者发送数据。上述的网络具体 实例可包括移动终端的通信供应商提供的无线网络。在一个实例中，传输装置106包括一个网络适配器(Network INterface CoNtroller，简称为NIC)，其可通过基站与其他网络设备相连从而可与互联网进行通讯。在一个实例中，传输装置106可以为射频(Radio FrequeNcy，简称为RF)模块，其用于通过无线方式与互联网进行通讯。
基于基站或上述移动终端，在本实施例中提供了一种信道状态信息参考信号传输方法。图2是根据本发明实施例的一种信道状态信息参考信号传输方法的流程图一，如图2所示，该流程包括如下步骤：
步骤S202，传输配置信息给终端，其中，所述配置信息包括承载信道状态信息参考信号CSI-RS的所有端口的连续资源块所构成的一个A类资源块组包括的资源块数目；
步骤S204，根据所述配置信息将所述CSI-RS传输给所述终端。
通过上述步骤S202至S204，可以解决相关技术中由于信道状态信息参考信号的天线端口数目不固定增加系统复杂度的问题，通过携带有CSI-RS的所有端口的连续资源块所构成的一个A类资源块组包括的资源块数目的配置信息传输CSI-RS，降低了系统复杂度。
其中，一个A类资源块组是由承载信道状态信息参考信号的连续资源块所构成的资源块组合，在该资源块组合内信道状态信息参考信号的所有端口仅出现一次。
由承载信道状态信息参考信号的连续资源块所构成的资源块组合，在该资源块组合内所有端口仅出现一次，所述的资源块组合记为A类资源块组；A类资源块组所包括的资源块数目，即是承载信道状态信息参考信号的所有端口的资源块数目。承载信道状态信息参考信号的所有端口的资源块数目就是采用多少资源块来承载信道状态信息参考信号的所有端口，也就是用多少资源块就可以承载信道状态信息参考信号的所有端口。一个示例，信道状态信息参考信号承载在12个资源块上，所述信道状态信息参考信号共有8个端口，其中承载信道状态信息参考信号的每两个连续资源 块就承载了信道状态信息参考信号的所有8个端口；即A类资源块组包括2个资源块。一种情况，A类资源块组内的资源块是连续的；如表1所示，标记为A类资源块组0的一个A类资源块组包括4个资源块，分别是资源块0、资源块1、资源块2、资源块3，这4个资源块之间无其它的资源块。
表1
A类资源块组0内的资源块0
A类资源块组0内的资源块1
A类资源块组0内的资源块2
A类资源块组0内的资源块3
一种情况，A类资源块组内的资源块是不连续的；如表2所示，标记为A类资源块组0的一个A类资源块组包括2个资源块，分别是资源块0、资源块1，这2个资源块之间存在其它资源块。
表2
A类资源块组0内的资源块0
非A类资源块组0内的资源块
A类资源块组0内的资源块1
 
又一种情况，A类资源块组是连续的；如表3所示，有2个A类资源块组，分别标记为组0、组1，这两个组之间没有其它的资源块。
表3
A类资源块组0内的资源块0
A类资源块组0内的资源块1
A类资源块组1内的资源块0
A类资源块组1内的资源块1
又一种情况，A类资源块组是不连续的；如表4所示，有2个A类资 源块组，分别标记为组0、组1，这两个组之间存在非A类资源块组的资源块。
表4
A类资源块组0内的资源块0
A类资源块组0内的资源块1
非A类资源块组的资源块
非A类资源块组的资源块
A类资源块组1内的资源块0
A类资源块组1内的资源块1
通过在配置信息指示A类资源块组包括的资源块数目，满足了传输信道状态信息参考信号端口数目可以变化的需求，并协调了传输其它无线信号对无线资源占用的需求。一个资源块可以承载的天线端口数目是受限的，一种情况是一个资源块能够承载信道状态信息参考信号的最大端口数目是有限的，例如当前NR系统中最大端口数目为32；另一种情况是，因为承载其它无线信号，一个资源块可以承载的天线端口数目是受限的。
所述配置信息包括承载信道状态信息参考信号的所有端口的资源块数目，即可以显示指示，也可以隐式指示。例如，直接指示A类资源块组包括的资源块数目；例如指示A类资源块组包括的资源块数目为2。例如，指示信道状态信息参考信号被承载在一个资源块承载的端口数目Kp，及信道状态信息参考信号的端口数目N；通过计算Kp除N的商即可得到A类资源块组包括的资源块数目。
在一个实施例中，所述配置信息还用于指示所述A类资源块组的以下状态之一：所述A类资源块组内资源块是连续的；所述A类资源块组内资源块是不连续的；所述A类资源块组间是连续的；所述A类资源块组间是不连续的。
进一步的，所述配置信息还包括所述CSI-RS的密度信息，其中，所 述CSI-RS的密度信息用于指示所述A类资源块组的以下状态之一:所述A类资源块组内资源块连续；所述A类资源块组内资源块不连续；所述A类资源块组间连续；所述A类资源块组间不连续。
例如，信道状态信息参考信号的密度值为1，指示承载信道状态信息参考信号的A类资源块组是连续的，或者指示A类资源块组内的资源块是连续的；信道状态信息参考信号的密度值小于1，指示A类资源块组是不连续的，或者指示A类资源块组内的资源块是不连续的。
再例如，信道状态信息参考信号的密度值为1，指示A类资源块组是连续的，并且A类资源块组内的资源块是连续的；信道状态信息参考信号的密度值小于1，指示A类资源块组是不连续的，A类资源块组内的资源块是连续的。
信息包括信道状态信息参考信号的密度是平均每资源块平均每端口的密度值。信息包括信道状态信息参考信号的密度可以表示为平均每端口占据的资源块数与传输信道状态信息参考信号的频率范围内的资源块数的比值。例如，信息包括信道状态信息参考信号的密度是0.5，表示平均每资源块平均每端口的密度值为0.5。
对应于一个信道状态信息参考信号的密度值，可以有很多种信道状态信息参考信号占用无线资源的方式，如果这些方式都需要基站或终端去存贮或检索，无疑增大的系统的复杂度。而信道状态信息参考信号的密度与上述有限的状态相对应或指示上述有限的状态，既有利于使用无线资源传输信道状态信息参考信号，而且降低了系统的复杂度。
所述A类资源块组内的资源块是连续的，指A类资源块组内的相邻资源块之间无其它资源块。所述A类资源块组是连续的，指相邻A类资源块组之间无其它资源块。
在另一个实施例中，所述A类资源块组在传输所述CSI-RS的频域范围内间隔相等或位置差相等。
A类资源块组在传输信道状态信息参考信号的频域范围内等间隔，即 相邻A类资源块组在频域上的间隔相等，或者相邻A类资源块组在频域上的位置差距相等。
例如，相邻A类资源块组在频域上的间隔距离为0个资源块；再例如，相邻A类资源块组在频域上的间隔距离为1个资源块；再例如，相邻A类资源块组在频域上的间隔距离为2个资源块。
再例如，相邻A类资源块组在频域上的间隔距离为0个A类资源块组大小；再例如，相邻A类资源块组在频域上的间隔距离为1个A类资源块组大小；再例如，相邻A类资源块组在频域上的间隔距离为2个A类资源块组大小。
信道状态信息参考信号在A类资源块组上传输，A类资源块组在传输信道状态信息参考信号的频域范围内等间隔，使每一个端口的相邻频域位置是等间隔的，所有端口的频域相邻位置间隔距离是相等的，并且端口之间的频域位置集中；避免了端口之间频域位置差异过大引入端口之间的信道误差，并减小了系统的复杂度。
在另一个实施例中，所述配置信息还包括所述A类资源块组的密度，其中，所述A类资源块组的密度在所述配置信息中被显示指示或隐式指示。进一步的，所述A类资源块组的密度用于指示所述A类资源块组在传输所述CSI-RS的频域范围内连续或不连续。
进一步的，所述A类资源块组的密度通过以下方式之一方式指示：
通过指示传输所述CSI-RS的频域范围内的所述A类资源块组的数目的方式；
通过指示平均到预定数量频域单位中的所述A类资源块组的数目的方式；
通过指示相邻所述A类资源块组在频域位置上的差距的方式；
通过指示相邻所述A类资源块组在频域上的间隔距离的方式；
通过指示每M个频域资源块具有一个A类资源块组的方式，其中M为 正整数；
通过指示平均在每一个所述A类资源块组大小的频域范围内具有N个所述A类资源块组的方式，其中，N为实数。
A类资源块组的密度表示在传输信道状态信息参考信号的频域范围内A类资源块组的疏密程度。在配置信息中指示A类资源块组的密度，指示出了所传输的信道状态信息参考信号对信道测量的重要程度，A类资源块组的密度大说明了系统加大了所传输的信道状态信息参考信号重要性，终端应当加大在频率上的测量频度，以提高性能；A类资源块组的密度小说明了系统降低了所传输的信道状态信息参考信号重要性，终端应当降低在频率上的测量频度，以减小工作量。在配置信息中指示A类资源块组的密度，便利终端利用密度信息进行传输信道状态信息参考信号的接收，降低盲检的复杂度。一种指示A类资源块组的密度的方法，通过指示传输信道状态信息参考信号的频域范围内的A类资源块组的数目进行指示。另一种指示A类资源块组的密度的方法，指示平均到一定频域单位中的A类资源块组的数目。再一种指示A类资源块组密度的方法，指示相邻A类资源块组在频域位置上的差距。
再一种指示A类资源块组密度的方法，指示相邻A类资源块组在频域上的间隔距离。再一种指示A类资源块组密度的方法，指示每M个频域资源块一个A类资源块组，其中M为正整数。再一种指示A类资源块组密度的方法，指示平均在每一个A类资源块组大小的频域范围内，具有N个A类资源块组，其中N为实数。
进一步的，所述A类资源块组的密度通过指示传输所述CSI-RS的频域范围内的A类资源块组的数目的方式指示，其中，若所述A类资源块组的密度大于或等于预设阈值，所述A类资源块组在传输所述CSI-RS的频域范围内连续；若所述A类资源块组的密度小于所述预设阈值，所述A类资源块组在传输所述CSI-RS的频域范围内非连续。
A类资源块组在传输信道状态信息参考信号的频域范围可以有非常多 的呈现方式，这会增加系统的复杂度，例如需要基站或终端去贮存这些呈现方式及对应的处理方式，及准备这些方式的处理能力。而把A类资源块组在传输信道状态信息参考信号的频域范围划分为连续与非连续，就降低了A类资源块组在传输信道状态信息参考信号的频域范围的呈现方式数目。指示A类资源块组在传输信道状态信息参考信号的频域范围内是否连续，有利于终端按照指示的方式对传输信道状态信息参考信号进行接收，降低终端接收操作的复杂度。通过A类资源块组的密度指示A类资源块组在传输信道状态信息参考信号的频域范围内是否连续，可以节省信令开销指示出A类资源块组在传输信道状态信息参考信号的频域范围内是否连续，从而降低系统的复杂度。一种指示方式是，A类资源块组的密度大于或等于一个门槛值(即上述预设阈值)，指示出A类资源块组在传输信道状态信息参考信号的频域范围内是连续的。另一种指示方式是，A类资源块组的密度小于或等于一个门槛值，指示出A类资源块组在传输信道状态信息参考信号的频域范围内是不连续的。
在另一个实施例中，所述CSI-RS的端口组与所述A类资源块组内资源块一一对应。
信道状态信息参考信号被承载于A类资源块组上，所述信道状态信息参考信号的端口分为X组，X是A类资源块组包括的资源块数目，端口组与A类资源块组内的资源块一一对应，即一个端口组由A类资源块组内对应的一个资源块承载。
例如，A类资源块组包括的资源块数目为2，信道状态信息参考信号的端口分为2组，第1组端口承载于A类资源块组中的一个资源块上，第2组端口承载于A类资源块组中的另一个资源块上。再例如，A类资源块组包括的资源块数目为3，信道状态信息参考信号的端口分为3组，第1组端口承载于A类资源块组中的一个资源块上，第2组端口承载于A类资源块组中的另一个资源块上，第3组端口承载于A类资源块组中的又一个资源块上。
根据A类资源块组中的资源块，对信道状态信息参考信号的端口进行分组，把将每一组端口承载于对应的资源块上，便利于发射侧按照资源块发射各端口上的信道状态信息参考信号，也便利于接收侧按资源块检测各端口上的信道状态信息参考信号,降低了系统的复杂度。
进一步的，所述端口组与所述A类资源块组内资源块的对应方式包括以下之一：
所述CSI-RS的端口序号与所述A类资源块组内资源块的序号对应；
所述CSI-RS的端口序号与所述A类资源块组内资源块的频率对应，具体的，根据端口的序号与A类资源块组内的资源块的频率高低进行对应；
所述CSI-RS的端口序号对所述A类资源块组内资源块数目求余得到的余数相同的端口为同一组端口，具体的，端口分为X组，端口序号的余数相同的端口为同一组，其中所述余数为端口序号对A类资源块组内的资源块数目进行求余运算的余数，端口序号为被除数，A类资源块组内的资源块数目为除数。
例如，端口序号由低到高的顺序与A类资源块组内资源块序号由低到高的顺序对应；即低端口序号的端口组对应A类资源块组内低序号的资源块，高端口序号的端口组对应A类资源块组内高序号的资源块。例如，A类资源块组包括2个资源块，分别为资源块0、资源块1；端口分为两组，第0组端口包括端口0、端口1，第1组端口包括端口2、端口3；第0组端口与资源块0对应，第1组端口与资源块1对应。
再例如，端口序号由低到高的顺序与A类资源块组内资源块序号由高到低的顺序对应；即低端口序号的端口组对应A类资源块组内高序号的资源块，高端口序号的端口组对应A类资源块组内低序号的资源块。例如，A类资源块组包括2个资源块，分别为资源块0、资源块1；端口分为两组，第0组端口包括端口0、端口1，第1组端口包括端口2、端口3；第0组端口与资源块1对应，第1组端口与资源块2对应。
根据端口的序号与A类资源块组内的资源块的序号对应，具有对应关 系的灵活性，从而减小对应关系的复杂度。
例如，端口序号由低到高的顺序与A类资源块组内资源块频率由低到高的顺序对应；即低端口序号的端口组对应A类资源块组内低频率的资源块，高端口序号的端口组对应A类资源块组内高频率的资源块。例如，A类资源块组包括2个资源块，分别为资源块0、资源块1，其中资源块0的频域位置低于资源块1的频域位置；端口分为两组，第0组端口包括端口0、端口1，第1组端口包括端口2、端口3；第0组端口与资源块0对应，第1组端口与资源块1对应。
再例如，端口序号由低到高的顺序与A类资源块组内资源块频率由高到低的顺序对应；即低端口序号的端口组对应A类资源块组内高频率的资源块，高端口序号的端口组对应A类资源块组内低频率的资源块。例如，A类资源块组包括2个资源块，分别为资源块0、资源块1；其中资源块0的频域位置低于资源块1的频域位置；端口分为两组，第0组端口包括端口0、端口1，第1组端口包括端口2、端口3；第0组端口与资源块1对应，第1组端口与资源块2对应。
根据端口的序号与A类资源块组内的资源块的频率位置顺序对应，可以利用既有的资源块频率位置顺序建立与端口组之间的对应关系，从而降低系统的复杂度。
例如，A类资源块组内的资源块数目为2，根据端口序号除以2的余数对端口进行分组，余数为0的一组端口由A类资源块组内一个资源块承载，余数为1的一组端口由A类资源块组内另一个资源块承载。
再例如，A类资源块组内的资源块数目为3，根据端口序号除以3的余数对端口进行分组，余数为0的一组端口由A类资源块组内一个资源块承载，余数为1的一组端口由A类资源块组内另一个资源块承载，余数为2的一组端口由A类资源块组内剩余的一个资源块承载。
根据端口的序号的余数与A类资源块组内的资源块对应，可以将轻易将相邻的端口分配到不同的资源块中，并使A类资源块组内的每个资源块 承载尽可能相近数目的天线端口，从而降低系统的复杂度。
在另一个实施例中，所述配置信息还包括：B类频域宽度，其中，所述B类频域宽度用于指示所述A类资源块组包括的资源块数目，所述B类频域宽度包括以下之一：所述终端所反馈的信道状态信息的频域宽度；所述CSI-RS的频域宽度；系统的带宽部分的频域宽度。
基站发射信道状态信息参考信号，终端测量信道状态信息参考信号，然后反馈信道状态信息。在保证一定检测性能的情况下，A类资源块组包括的资源块数目由所检测的信道状态信息参考信号的带宽确定的。而终端所反馈的信道状态信息的频域宽度是实际检测的信道状态信息参考信号的带宽，信道状态信息参考信号的频域宽度是指示检测的信道状态信息参考信号的带宽，系统带宽部分的频域宽度是可能检测的信道状态信息参考信号的带宽。配置信息包括B类频域宽度，以B类频域宽度隐式指示A类资源块组包括的资源块数目可以降低信令开销，降低系统的复杂度。A类资源块组包括的资源块数目随B类频域宽度增加而增加；例如阶段式增加。再例如，A类资源块组包括的资源块数目由B类频域宽度及单个资源块承载的信道状态信息参考信号端口数目联合指示；例如，单个资源块承载的信道状态信息参考信号端口数目增加，A类资源块组包括的资源块数目降低。
进一步的，所述B类频域宽度，还用于与调整系数联合指示所述A类资源块组包括的资源块数目，其中，所述的调整系数用于调整所述A类资源块组包括的资源块数目。具体的，A类资源块组包括的资源块数目由所述的B类频域宽度与调整系数联合指示。所述的调整系数用于调整A类资源块组包括的资源块数目，以控制利用所述参考信号的测量性能；从而在保证测量性能的情况下，降低系统的复杂度。例如，A类资源块组包括的资源块数目与调整系数为单调关系；例如为单调增的关系，或为单调减的关系。现例如，所述配置信息包括所述的调整参数。
在另一个实施例中，所述配置信息还包括所述终端所反馈的预编码的 频域颗粒度，其中，所述预编码的频域颗粒度由所述A类资源块组包括的资源块数目指示，具体可以是隐式指示。
进一步的，所述预编码的频域颗粒度通过以下方式之一由所述A类资源块组包括的资源块数目指示：
所述预编码的频域颗粒度是所述A类资源块组包括的资源块数目的倍数；
所述预编码的频域颗粒度等于所述A类资源块组包括的资源块数目；
所述预编码的频域颗粒度由所述A类资源块组包括的资源块数目与所述CSI-RS的密度联合确定；
所述预编码的频域颗粒度与所述A类资源块组包括的资源块数目的对应关系。
基站发射信道状态信息参考信号，终端测量信道状态信息参考信号，然后反馈信道状态信息。其中，所反馈的信道状态信息包括应用于天线端口上的预编码信息，预编码的信息按照一定的频域单位呈现，即按照一定的频域颗粒度呈现，即在多大的频域范围内预编码的值是多少。例如，预编码的频域颗粒度是A类资源块组包括的资源块数目的整数倍。再例如，预编码的频域颗粒度是A类资源块组包括的资源块数目。再例如，预编码的频域颗粒度由A类资源块组包括的资源块数目与信道状态信息参考信号的密度联合确定。再例如，预编码的频域颗粒度与A类资源块组包括的资源块数目是单调增的关系，与信道状态信息参考信号的密度是单调减的关系。
在另一个实施例中，所述配置信息还包括所述终端反馈信道状态信息CSI的频域范围，其中，以子带为频域颗粒度表示所述CSI的频域范围，所述子带包括的所述A类资源块组的数量为整数。
即配置信息还包括终端反馈信道状态信息的频域范围，以子带作为频域颗粒度表示信道状态信息的频域范围，所述子带包括整数个A类资源块组。子带内有整数个A类资源块组，方便在子带内进行信道状态的测量， 避免跨子带之间的测量，以降低系统的复杂度。例如，1个子带包括1个A类资源块组。再例如，1个子带包括2个A类资源块组。再例如，1个子带包括3个A类资源块组。
实施例2
根据本发明实施例的另一方面，还提供了一种信道状态信息参考信号传输方法，图3是根据本发明实施例的信道状态信息参考信号传输方法的流程图二，如图3所示，包括：
步骤S302，接收配置信息，其中，所述配置信息包括承载信道状态信息参考信号CSI-RS的所有端口的连续资源块所构成的一个A类资源块组包括的资源块数目；
步骤S304，根据所述配置信息接收所述CSI-RS。
接收来自基站的配置信息，根据所述配置信息接收信道状态信息参考信号；其中，所述配置信息包括：一个A类资源块组包括的资源块数目；一个A类资源块组是由承载信道状态信息参考信号的连续资源块所构成的资源块组合，在该资源块组合内信道状态信息参考信号的所有端口仅出现一次。
通过上述步骤S302至S304，可以解决相关技术中由于信道状态信息参考信号的天线端口数目不固定增加系统复杂度的问题，通过携带有CSI-RS的所有端口的连续资源块所构成的一个A类资源块组包括的资源块数目的配置信息传输CSI-RS，降低了系统复杂度。
在一个实施例中，所述配置信息还用于指示所述A类资源块组的以下状态之一：
所述A类资源块组内资源块是连续的；
所述A类资源块组内资源块是不连续的；
所述A类资源块组间是连续的；
所述A类资源块组间是不连续的。
在一个实施例中，所述配置信息还包括所述CSI-RS的密度信息，其中，所述CSI-RS的密度信息用于指示所述A类资源块组的以下状态之一:
所述A类资源块组内资源块连续；
所述A类资源块组内资源块不连续；
所述A类资源块组间连续；
所述A类资源块组间不连续。
在一个实施例中，所述A类资源块组在传输所述CSI-RS的频域范围内间隔相等或位置差相等。
在一个实施例中，所述配置信息还包括所述A类资源块组的密度，其中，所述A类资源块组的密度在所述配置信息中被显示指示或隐式指示。
在一个实施例中，所述A类资源块组的密度通过以下方式之一方式指示：
通过指示传输所述CSI-RS的频域范围内的所述A类资源块组的数目的方式；
通过指示平均到预定数量频域单位中的所述A类资源块组的数目的方式；
通过指示相邻所述A类资源块组在频域位置上的差距的方式；
通过指示相邻所述A类资源块组在频域上的间隔距离的方式；
通过指示每M个频域资源块具有一个A类资源块组的方式，其中M为正整数；
通过指示平均在每一个所述A类资源块组大小的频域范围内具有N个所述A类资源块组的方式，其中，N为实数。
在一个实施例中，所述A类资源块组的密度用于指示所述A类资源块组在传输所述CSI-RS的频域范围内连续或不连续。
在一个实施例中，所述A类资源块组的密度通过指示传输所述CSI-RS的频域范围内的A类资源块组的数目的方式指示，其中，若所述A类资源块组的密度大于或等于预设阈值，所述A类资源块组在传输所述CSI-RS的频域范围内连续；若所述A类资源块组的密度小于所述预设阈值，所述A类资源块组在传输所述CSI-RS的频域范围内非连续。
在一个实施例中，所述CSI-RS的端口组与所述A类资源块组内资源块一一对应。
在一个实施例中，所述端口组与所述A类资源块组内资源块的对应方式包括以下之一：
所述CSI-RS的端口序号与所述A类资源块组内资源块的序号对应；
所述CSI-RS的端口序号与所述A类资源块组内资源块的频率对应；
所述CSI-RS的端口序号对所述A类资源块组内资源块数目求余得到的余数相同的端口为同一组端口。
在一个实施例中，所述配置信息还包括：B类频域宽度，其中，所述B类频域宽度用于指示所述A类资源块组包括的资源块数目，所述B类频域宽度包括以下之一：
所述终端所反馈的信道状态信息的频域宽度；
所述CSI-RS的频域宽度；
系统的带宽部分的频域宽度。
在一个实施例中，所述B类频域宽度，还用于与调整系数联合指示所述A类资源块组包括的资源块数目，其中，所述的调整系数用于调整所述A类资源块组包括的资源块数目。
在一个实施例中，所述配置信息还包括所述终端所反馈的预编码的频域颗粒度，其中，所述预编码的频域颗粒度由所述A类资源块组包括的资源块数目指示。
在一个实施例中，所述预编码的频域颗粒度通过以下方式之一由所述 A类资源块组包括的资源块数目指示：
所述预编码的频域颗粒度是所述A类资源块组包括的资源块数目的倍数；
所述预编码的频域颗粒度等于所述A类资源块组包括的资源块数目；
所述预编码的频域颗粒度由所述A类资源块组包括的资源块数目与所述CSI-RS的密度联合确定；
所述预编码的频域颗粒度与所述A类资源块组包括的资源块数目的对应关系。
在一个实施例中，所述配置信息还包括所述终端反馈信道状态信息CSI的频域范围，其中，以子带为频域颗粒度表示所述CSI的频域范围，所述子带包括的所述A类资源块组的数量为整数。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到根据上述实施例的方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，计算机，服务器，或者网络设备等)执行本发明各个实施例所述的方法。
实施例3
在本实施例中还提供了一种信道状态信息参考信号传输装置，该装置用于实现上述实施例及优选实施方式，已经进行过说明的不再赘述。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。
图4是根据本发明实施例的信道状态信息参考信号传输装置的框图一，如图4所示，包括：
第一传输模块42，设置为传输配置信息，其中，所述配置信息包括承载信道状态信息参考信号CSI-RS的所有端口的连续资源块所构成的一个A类资源块组包括的资源块数目；
第二传输模块44，设置为根据所述配置信息将所述CSI-RS传输给终端。
所述配置信息还用于指示所述A类资源块组的以下状态之一：
所述A类资源块组内资源块是连续的；
所述A类资源块组内资源块是不连续的；
所述A类资源块组间是连续的；
所述A类资源块组间是不连续的。
在一个实施例中，所述配置信息还包括所述CSI-RS的密度信息，其中，所述CSI-RS的密度信息用于指示所述A类资源块组的以下状态之一:
所述A类资源块组内资源块连续；
所述A类资源块组内资源块不连续；
所述A类资源块组间连续；
所述A类资源块组间不连续。
在另一个实施例中，所述A类资源块组在传输所述CSI-RS的频域范围内间隔相等或位置差相等。
在另一个实施例中，所述配置信息还包括所述A类资源块组的密度，其中，所述A类资源块组的密度在所述配置信息中被显示指示或隐式指示。
在另一个实施例中，所述A类资源块组的密度通过以下方式之一方式指示：
通过指示传输所述CSI-RS的频域范围内的所述A类资源块组的数目 的方式；
通过指示平均到预定数量频域单位中的所述A类资源块组的数目的方式；
通过指示相邻所述A类资源块组在频域位置上的差距的方式；
通过指示相邻所述A类资源块组在频域上的间隔距离的方式；
通过指示每M个频域资源块具有一个A类资源块组的方式，其中M为正整数；
通过指示平均在每一个所述A类资源块组大小的频域范围内具有N个所述A类资源块组的方式，其中，N为实数。
在另一个实施例中，所述A类资源块组的密度用于指示所述A类资源块组在传输所述CSI-RS的频域范围内连续或不连续。
在另一个实施例中，所述A类资源块组的密度通过指示传输所述CSI-RS的频域范围内的A类资源块组的数目的方式指示，其中，若所述A类资源块组的密度大于或等于预设阈值，所述A类资源块组在传输所述CSI-RS的频域范围内连续；若所述A类资源块组的密度小于所述预设阈值，所述A类资源块组在传输所述CSI-RS的频域范围内非连续。
在另一个实施例中，所述CSI-RS的端口组与所述A类资源块组内资源块一一对应。
在另一个实施例中，所述端口组与所述A类资源块组内资源块的对应方式包括以下之一：
所述CSI-RS的端口序号与所述A类资源块组内资源块的序号对应；
所述CSI-RS的端口序号与所述A类资源块组内资源块的频率对应；
所述CSI-RS的端口序号对所述A类资源块组内资源块数目求余得到的余数相同的端口为同一组端口。
在另一个实施例中，所述配置信息还包括：B类频域宽度，其中，所述B类频域宽度用于指示所述A类资源块组包括的资源块数目，所述B类 频域宽度包括以下之一：
所述终端所反馈的信道状态信息的频域宽度；
所述CSI-RS的频域宽度；
系统的带宽部分的频域宽度。
在另一个实施例中，所述B类频域宽度，还用于与调整系数联合指示所述A类资源块组包括的资源块数目，其中，所述的调整系数用于调整所述A类资源块组包括的资源块数目。
在另一个实施例中，所述配置信息还包括所述终端所反馈的预编码的频域颗粒度，其中，所述预编码的频域颗粒度由所述A类资源块组包括的资源块数目指示。
在另一个实施例中，所述预编码的频域颗粒度通过以下方式之一由所述A类资源块组包括的资源块数目指示：
所述预编码的频域颗粒度是所述A类资源块组包括的资源块数目的倍数；
所述预编码的频域颗粒度等于所述A类资源块组包括的资源块数目；
所述预编码的频域颗粒度由所述A类资源块组包括的资源块数目与所述CSI-RS的密度联合确定；
所述预编码的频域颗粒度与所述A类资源块组包括的资源块数目的对应关系。
在另一个实施例中，所述配置信息还包括所述终端反馈信道状态信息CSI的频域范围，其中，以子带为频域颗粒度表示所述CSI的频域范围，所述子带包括的所述A类资源块组的数量为整数。
实施例4
根据本发明实施例的另一方面，还提供了一种信道状态信息参考信号传输装置，图5是根据本发明实施例的信道状态信息参考信号传输装置的 框图二，如图5所示，包括：
第一接收模块52，设置为接收配置信息，其中，所述配置信息包括承载信道状态信息参考信号CSI-RS的所有端口的连续资源块所构成的一个A类资源块组包括的资源块数目；
第二接收模块54，设置为根据所述配置信息接收所述CSI-RS。
所述配置信息还用于指示所述A类资源块组的以下状态之一：
所述A类资源块组内资源块是连续的；
所述A类资源块组内资源块是不连续的；
所述A类资源块组间是连续的；
所述A类资源块组间是不连续的。
在一个实施例中，所述配置信息还包括所述CSI-RS的密度信息，其中，所述CSI-RS的密度信息用于指示所述A类资源块组的以下状态之一:
所述A类资源块组内资源块连续；
所述A类资源块组内资源块不连续；
所述A类资源块组间连续；
所述A类资源块组间不连续。
在另一个实施例中，所述A类资源块组在传输所述CSI-RS的频域范围内间隔相等或位置差相等。
在另一个实施例中，所述配置信息还包括所述A类资源块组的密度，其中，所述A类资源块组的密度在所述配置信息中被显示指示或隐式指示。
在另一个实施例中，所述A类资源块组的密度通过以下方式之一方式指示：
通过指示传输所述CSI-RS的频域范围内的所述A类资源块组的数目的方式；
通过指示平均到预定数量频域单位中的所述A类资源块组的数目的方 式；
通过指示相邻所述A类资源块组在频域位置上的差距的方式；
通过指示相邻所述A类资源块组在频域上的间隔距离的方式；
通过指示每M个频域资源块具有一个A类资源块组的方式，其中M为正整数；
通过指示平均在每一个所述A类资源块组大小的频域范围内具有N个所述A类资源块组的方式，其中，N为实数。
在另一个实施例中，所述A类资源块组的密度用于指示所述A类资源块组在传输所述CSI-RS的频域范围内连续或不连续。
在另一个实施例中，所述A类资源块组的密度通过指示传输所述CSI-RS的频域范围内的A类资源块组的数目的方式指示，其中，若所述A类资源块组的密度大于或等于预设阈值，所述A类资源块组在传输所述CSI-RS的频域范围内连续；若所述A类资源块组的密度小于所述预设阈值，所述A类资源块组在传输所述CSI-RS的频域范围内非连续。
在另一个实施例中，所述CSI-RS的端口组与所述A类资源块组内资源块一一对应。
在另一个实施例中，所述端口组与所述A类资源块组内资源块的对应方式包括以下之一：
所述CSI-RS的端口序号与所述A类资源块组内资源块的序号对应；
所述CSI-RS的端口序号与所述A类资源块组内资源块的频率对应；
所述CSI-RS的端口序号对所述A类资源块组内资源块数目求余得到的余数相同的端口为同一组端口。
在另一个实施例中，所述配置信息还包括：B类频域宽度，其中，所述B类频域宽度用于指示所述A类资源块组包括的资源块数目，所述B类频域宽度包括以下之一：
所述终端所反馈的信道状态信息的频域宽度；
所述CSI-RS的频域宽度；
系统的带宽部分的频域宽度。
在另一个实施例中，所述B类频域宽度，还用于与调整系数联合指示所述A类资源块组包括的资源块数目，其中，所述的调整系数用于调整所述A类资源块组包括的资源块数目。
在另一个实施例中，所述配置信息还包括所述终端所反馈的预编码的频域颗粒度，其中，所述预编码的频域颗粒度由所述A类资源块组包括的资源块数目指示。
在另一个实施例中，所述预编码的频域颗粒度通过以下方式之一由所述A类资源块组包括的资源块数目指示：
所述预编码的频域颗粒度是所述A类资源块组包括的资源块数目的倍数；
所述预编码的频域颗粒度等于所述A类资源块组包括的资源块数目；
所述预编码的频域颗粒度由所述A类资源块组包括的资源块数目与所述CSI-RS的密度联合确定；
所述预编码的频域颗粒度与所述A类资源块组包括的资源块数目的对应关系。
在另一个实施例中，所述配置信息还包括所述终端反馈信道状态信息CSI的频域范围，其中，以子带为频域颗粒度表示所述CSI的频域范围，所述子带包括的所述A类资源块组的数量为整数。
需要说明的是，上述各个模块是可以通过软件或硬件来实现的，对于后者，可以通过以下方式实现，但不限于此：上述模块均位于同一处理器中；或者，上述各个模块以任意组合的形式分别位于不同的处理器中。
实施例5
本发明的实施例还提供了一种计算机可读的存储介质，该存储介质中 存储有计算机程序，其中，该计算机程序被设置为运行时执行上述任一项方法实施例中的步骤。
在一个实施例中，在本实施例中，上述存储介质可以被设置为存储用于执行以下步骤的计算机程序：
S11，传输配置信息给终端，其中，所述配置信息包括承载信道状态信息参考信号CSI-RS的所有端口的连续资源块所构成的一个A类资源块组包括的资源块数目；
S12，根据所述配置信息将所述CSI-RS传输给所述终端。
在另一个实施例中，在本实施例中，上述存储介质还可以被设置为存储用于执行以下步骤的计算机程序：
S21，接收配置信息，其中，所述配置信息包括承载信道状态信息参考信号CSI-RS的所有端口的连续资源块所构成的一个A类资源块组包括的资源块数目；
S22，根据所述配置信息接收所述CSI-RS。
在另一个实施例中，上述存储介质可以包括但不限于：U盘、只读存储器(Read-ONly Memory，简称为ROM)、随机存取存储器(RaNdom Access Memory，简称为RAM)、移动硬盘、磁碟或者光盘等各种可以存储计算机程序的介质。
实施例6
本发明的实施例还提供了一种电子装置，包括存储器和处理器，该存储器中存储有计算机程序，该处理器被设置为运行计算机程序以执行上述任一项方法实施例中的步骤。
在一个实施例中，上述电子装置还可以包括传输设备以及输入输出设备，其中，该传输设备和上述处理器连接，该输入输出设备和上述处理器连接。
在另一实施例中，上述处理器可以被设置为通过计算机程序执行以下步骤：
S11，传输配置信息给终端，其中，所述配置信息包括承载信道状态信息参考信号CSI-RS的所有端口的连续资源块所构成的一个A类资源块组包括的资源块数目；
S12，根据所述配置信息将所述CSI-RS传输给所述终端。
在另一实施例中，上述处理器还可以被设置为通过计算机程序执行以下步骤：
S21，接收配置信息，其中，所述配置信息包括承载信道状态信息参考信号CSI-RS的所有端口的连续资源块所构成的一个A类资源块组包括的资源块数目；
S22，根据所述配置信息接收所述CSI-RS。
本实施例中的具体示例可以参考上述实施例及可选实施方式中所描述的示例，本实施例在此不再赘述。
显然，本领域的技术人员应该明白，上述的本发明的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
工业实用性
本发明实施例，应用于通信领域，可以解决相关技术中由于信道状态信息参考信号的天线端口数目不固定增加系统复杂度的问题，通过携带有CSI-RS的所有端口的连续资源块所构成的一个A类资源块组包括的资源块数目的配置信息传输CSI-RS，降低了系统复杂度。

Claims (34)

  1. 一种信道状态信息参考信号传输方法，包括：
    传输配置信息给终端，其中，所述配置信息包括承载信道状态信息参考信号CSI-RS的所有端口的连续资源块所构成的一个A类资源块组包括的资源块数目；
    根据所述配置信息将所述CSI-RS传输给所述终端。
  2. 根据权利要求1所述的方法，其中，
    所述配置信息还用于指示所述A类资源块组的以下状态之一：
    所述A类资源块组内资源块是连续的；
    所述A类资源块组内资源块是不连续的；
    所述A类资源块组间是连续的；
    所述A类资源块组间是不连续的。
  3. 根据权利要求2所述的方法，其中，
    所述配置信息还包括所述CSI-RS的密度信息，其中，所述CSI-RS的密度信息用于指示所述A类资源块组的以下状态之一:
    所述A类资源块组内资源块连续；
    所述A类资源块组内资源块不连续；
    所述A类资源块组间连续；
    所述A类资源块组间不连续。
  4. 根据权利要求1所述的方法，其中，所述A类资源块组在传输所述CSI-RS的频域范围内间隔相等或位置差相等。
  5. 根据权利要求1所述的方法，其中，所述配置信息还包括所述A类资源块组的密度，其中，所述A类资源块组的密度在所述配置信息中被显示指示或隐式指示。
  6. 根据权利要求5所述的方法，其中，所述A类资源块组的密度通过以下方式之一方式指示：
    通过指示传输所述CSI-RS的频域范围内的所述A类资源块组的数目的方式；
    通过指示平均到预定数量频域单位中的所述A类资源块组的数目的方式；
    通过指示相邻所述A类资源块组在频域位置上的差距的方式；
    通过指示相邻所述A类资源块组在频域上的间隔距离的方式；
    通过指示每M个频域资源块具有一个A类资源块组的方式，其中M为正整数；
    通过指示平均在每一个所述A类资源块组大小的频域范围内具有N个所述A类资源块组的方式，其中，N为实数。
  7. 根据权利要求5所述的方法，其中，
    所述A类资源块组的密度用于指示所述A类资源块组在传输所述CSI-RS的频域范围内连续或不连续。
  8. 根据权利要求7所述的方法，其中，所述A类资源块组的密度通过指示传输所述CSI-RS的频域范围内的A类资源块组的数目的方式指示，其中，若所述A类资源块组的密度大于或等于预设阈值，所述A类资源块组在传输所述CSI-RS的频域范围内连续；若所述A类资源块组的密度小于所述预设阈值，所述A类资源块组在传输所述 CSI-RS的频域范围内非连续。
  9. 根据权利要求1所述的方法，其中，
    所述CSI-RS的端口组与所述A类资源块组内资源块一一对应。
  10. 根据权利要求9所述的方法，其中，
    所述端口组与所述A类资源块组内资源块的对应方式包括以下之一：
    所述CSI-RS的端口序号与所述A类资源块组内资源块的序号对应；
    所述CSI-RS的端口序号与所述A类资源块组内资源块的频率对应；
    所述CSI-RS的端口序号对所述A类资源块组内资源块数目求余得到的余数相同的端口为同一组端口。
  11. 根据权利要求1至10中任一项所述的方法，其中，
    所述配置信息还包括：B类频域宽度，其中，所述B类频域宽度用于指示所述A类资源块组包括的资源块数目，所述B类频域宽度包括以下之一：
    所述终端所反馈的信道状态信息的频域宽度；
    所述CSI-RS的频域宽度；
    系统的带宽部分的频域宽度。
  12. 根据权利要求11所述的方法，其中，
    所述B类频域宽度，还用于与调整系数联合指示所述A类资源块 组包括的资源块数目，其中，所述的调整系数用于调整所述A类资源块组包括的资源块数目。
  13. 根据权利要求1至10中任一项所述的方法，其中，
    所述配置信息还包括所述终端所反馈的预编码的频域颗粒度，其中，所述预编码的频域颗粒度由所述A类资源块组包括的资源块数目指示。
  14. 根据权利要求13所述的方法，其中，
    所述预编码的频域颗粒度通过以下方式之一由所述A类资源块组包括的资源块数目指示：
    所述预编码的频域颗粒度是所述A类资源块组包括的资源块数目的倍数；
    所述预编码的频域颗粒度等于所述A类资源块组包括的资源块数目；
    所述预编码的频域颗粒度由所述A类资源块组包括的资源块数目与所述CSI-RS的密度联合确定；
    所述预编码的频域颗粒度与所述A类资源块组包括的资源块数目的对应关系。
  15. 根据权利要求1至10中任一项所述的方法，其中，
    所述配置信息还包括所述终端反馈信道状态信息CSI的频域范围，其中，以子带为频域颗粒度表示所述CSI的频域范围，所述子带包括的所述A类资源块组的数量为整数。
  16. 一种信道状态信息参考信号传输方法，包括：
    接收配置信息，其中，所述配置信息包括承载信道状态信息参考信号CSI-RS的所有端口的连续资源块所构成的一个A类资源块组包括的资源块数目；
    根据所述配置信息接收所述CSI-RS。
  17. 根据权利要求16所述的方法，其中，
    所述配置信息还用于指示所述A类资源块组的以下状态之一：
    所述A类资源块组内资源块是连续的；
    所述A类资源块组内资源块是不连续的；
    所述A类资源块组间是连续的；
    所述A类资源块组间是不连续的。
  18. 根据权利要求17所述的方法，其中，
    所述配置信息还包括所述CSI-RS的密度信息，其中，所述CSI-RS的密度信息用于指示所述A类资源块组的以下状态之一:
    所述A类资源块组内资源块连续；
    所述A类资源块组内资源块不连续；
    所述A类资源块组间连续；
    所述A类资源块组间不连续。
  19. 根据权利要求16所述的方法，其中，所述A类资源块组在传输所述CSI-RS的频域范围内间隔相等或位置差相等。
  20. 根据权利要求16所述的方法，其中，所述配置信息还包括 所述A类资源块组的密度，其中，所述A类资源块组的密度在所述配置信息中被显示指示或隐式指示。
  21. 根据权利要求20所述的方法，其中，所述A类资源块组的密度通过以下方式之一方式指示：
    通过指示传输所述CSI-RS的频域范围内的所述A类资源块组的数目的方式；
    通过指示平均到预定数量频域单位中的所述A类资源块组的数目的方式；
    通过指示相邻所述A类资源块组在频域位置上的差距的方式；
    通过指示相邻所述A类资源块组在频域上的间隔距离的方式；
    通过指示每M个频域资源块具有一个A类资源块组的方式，其中M为正整数；
    通过指示平均在每一个所述A类资源块组大小的频域范围内具有N个所述A类资源块组的方式，其中，N为实数。
  22. 根据权利要求20所述的方法，其中，
    所述A类资源块组的密度用于指示所述A类资源块组在传输所述CSI-RS的频域范围内连续或不连续。
  23. 根据权利要求22所述的方法，其中，所述A类资源块组的密度通过指示传输所述CSI-RS的频域范围内的A类资源块组的数目的方式指示，其中，若所述A类资源块组的密度大于或等于预设阈值，所述A类资源块组在传输所述CSI-RS的频域范围内连续；若所述A类资源块组的密度小于所述预设阈值，所述A类资源块组在传输所述CSI-RS的频域范围内非连续。
  24. 根据权利要求16所述的方法，其中，
    所述CSI-RS的端口组与所述A类资源块组内资源块一一对应。
  25. 根据权利要求24所述的方法，其中，
    所述端口组与所述A类资源块组内资源块的对应方式包括以下之一：
    所述CSI-RS的端口序号与所述A类资源块组内资源块的序号对应；
    所述CSI-RS的端口序号与所述A类资源块组内资源块的频率对应；
    所述CSI-RS的端口序号对所述A类资源块组内资源块数目求余得到的余数相同的端口为同一组端口。
  26. 根据权利要求16至25中任一项所述的方法，其中，
    所述配置信息还包括：B类频域宽度，其中，所述B类频域宽度用于指示所述A类资源块组包括的资源块数目，所述B类频域宽度包括以下之一：
    所述终端所反馈的信道状态信息的频域宽度；
    所述CSI-RS的频域宽度；
    系统的带宽部分的频域宽度。
  27. 根据权利要求26所述的方法，其中，
    所述B类频域宽度，还用于与调整系数联合指示所述A类资源块组包括的资源块数目，其中，所述的调整系数用于调整所述A类资源 块组包括的资源块数目。
  28. 根据权利要求16至25中任一项所述的方法，其中，
    所述配置信息还包括所述终端所反馈的预编码的频域颗粒度，其中，所述预编码的频域颗粒度由所述A类资源块组包括的资源块数目指示。
  29. 根据权利要求28所述的方法，其中，
    所述预编码的频域颗粒度通过以下方式之一由所述A类资源块组包括的资源块数目指示：
    所述预编码的频域颗粒度是所述A类资源块组包括的资源块数目的倍数；
    所述预编码的频域颗粒度等于所述A类资源块组包括的资源块数目；
    所述预编码的频域颗粒度由所述A类资源块组包括的资源块数目与所述CSI-RS的密度联合确定；
    所述预编码的频域颗粒度与所述A类资源块组包括的资源块数目的对应关系。
  30. 根据权利要求16至25中任一项所述的方法，其中，
    所述配置信息还包括所述终端反馈信道状态信息CSI的频域范围，其中，以子带为频域颗粒度表示所述CSI的频域范围，所述子带包括的所述A类资源块组的数量为整数。
  31. 一种信道状态信息参考信号传输装置，包括：
    第一传输模块，设置为传输配置信息，其中，所述配置信息包括 承载信道状态信息参考信号CSI-RS的所有端口的连续资源块所构成的一个A类资源块组包括的资源块数目；
    第二传输模块，设置为根据所述配置信息将所述CSI-RS传输给终端。
  32. 一种信道状态信息参考信号传输装置，包括：
    第一接收模块，设置为接收配置信息，其中，所述配置信息包括承载信道状态信息参考信号CSI-RS的所有端口的连续资源块所构成的一个A类资源块组包括的资源块数目；
    第二接收模块，设置为根据所述配置信息接收所述CSI-RS。
  33. 一种计算机可读的存储介质，所述存储介质中存储有计算机程序，其中，所述计算机程序被设置为运行时执行所述权利要求1至15、16至30任一项中所述的方法。
  34. 一种电子装置，包括存储器和处理器，所述存储器中存储有计算机程序，所述处理器被设置为运行所述计算机程序以执行所述权利要求1至15、16至30任一项中所述的方法。
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