Port indication information reporting method and terminal

Abstract

An embodiment of the present application provides a port indication information reporting method and a terminal. The port indication information reporting method is applied to a terminal, and includes: receiving a CSI-RS resource distributed from a network side device, the CSI-RS resource including a plurality of CSI-RS ports; selecting a plurality of target CSI-RS ports from the plurality of CSI-RS ports; and reporting port selection indication information to the network side device, the port selection indication information indicating a port identifier of the target CSI-RS port. The embodiment of the present application enables the network side device to determine which CSI-RS port the terminal has selected through the reported port indication information.

Description

[Technical field]

[0001] (CROSS REFERENCE TO RELATED APPLICATIONS) The present invention claims priority to a Chinese patent application filed with the China Patent Office on April 2, 2021, bearing application number 202110362882.6 and entitled "Port indication information reporting method and terminal", the entire contents of which are incorporated herein by reference. The present invention relates to the technical field of mobile communications, and in particular to a port indication information reporting method and terminal. [Background technology]

[0002] With the continuous development of mobile communication technology, 5G (5th Generation mobile networks) standards have already evolved from Rel-15 version to Rel-17 version.

[0003] Currently, the Rel-17 port selection codebook uses the structure of the Rel-15 or Rel-16 Type II port selection codebook, but the Rel-15 or Rel-16 Type II port selection codebook is a method of selecting consecutive L ports (L is a positive integer). On the other hand, the Re1-17 port can be freely selected for the port selection of the codebook, and is no longer limited to selecting consecutive L ports. Therefore, the original indication method for indicating the port selection of Rel-15 / 16 cannot be used for the Rel-17 port selection codebook.

[0004] As can be seen from the above, how to design a dedicated Rel-17 port selection codebook scheme has become an urgent issue to be solved. Summary of the Invention

[0005] The embodiment of the present invention provides a port indication information reporting method and terminal that realizes port selection for Rel-17.

[0006] In a first aspect, an embodiment of the present application provides a port indication information reporting method applied to a terminal, comprising: Receiving a channel state information reference signal (CSI-RS) resource distributed from a network side device, the CSI-RS resource including a plurality of CSI-RS ports; selecting a plurality of target CSI-RS ports from the plurality of CSI-RS ports; and reporting port selection indication information to the network side device for indicating a port identifier of the target CSI-RS port.

[0007] In a second aspect, the present application includes an embodiment comprising: A CSI-RS resource receiving module is configured to receive a CSI-RS resource distributed from a network side device, the CSI-RS resource including a plurality of CSI-RS ports; a target CSI-RS port selection module for selecting a plurality of target CSI-RS ports from the plurality of CSI-RS ports; A terminal is further provided, the terminal including: a port indication information reporting module for reporting port selection indication information to the network side device for indicating a port identifier of the target CSI-RS port.

[0008] In a third aspect, the present application provides a terminal including a memory, a transceiver, and a processor, The memory is for storing a computer program, and the transceiver is for transmitting and receiving data under the control of the processor, and the processor reads the computer program in the memory and an operation of causing the transceiver to be used for receiving a channel state information reference signal (CSI-RS) resource delivered from a network side device, the CSI-RS resource including a plurality of CSI-RS ports; causing the processor to be used to select a plurality of target CSI-RS ports from the plurality of CSI-RS ports; and causing the transceiver to be further used for reporting port selection indication information to the network side device for indicating a port identifier of the target CSI-RS port.

[0009] In a fourth aspect, an embodiment of the present application further provides an electronic device including a memory, a processor, and a computer program stored in the memory and operable on the processor, wherein when the computer program is executed by the processor, steps in the port indication information reporting method described in the first aspect are realized.

[0010] In a fifth aspect, an embodiment of the present application further provides a processor-readable storage medium storing a computer program, the computer program being for causing the processor to execute the above-mentioned port indication information reporting method. Effect of the Invention

[0011] In an embodiment of the present invention, a terminal receives a channel state information reference signal (CSI-RS) resource including a plurality of CSI-RS ports distributed from a network side device, thereby selecting a plurality of target CSI-RS ports from the plurality of CSI-RS ports, and reporting port selection indication information for indicating a port identifier of the target CSI-RS port to the network side device. In the embodiment of the present application, the reported port selection indication information indicates a port identifier of the selected target CSI-RS port, thereby enabling the network side device to grasp the CSI-RS port selected by the terminal.

[0012] The above description is merely an outline of the technical solution of the present invention. In order to make the technical means of the present invention more clearly understood and to implement them in accordance with the content of the specification, and to more easily understand the above and other objects, features and advantages of the present invention, the following particularly illustrates specific embodiments of the present invention. [Brief description of the drawings]

[0013] [Figure 1] 2 is a flowchart of steps of a port indication information reporting method according to a first embodiment of the present application; [Diagram 2] FIG. 2 is a structural block diagram of a terminal according to a second embodiment of the present application; [Diagram 3] FIG. 11 is a structural block diagram of a terminal according to a third embodiment of the present application; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] In the embodiments of the present application, the term "and / or" merely expresses the relationship between related objects, and indicates that there are three possible relationships. For example, A and / or B may indicate three cases: only A exists, both A and B exist, and only B exists. The symbol " / " generally indicates an "or" relationship between the related objects before and after it.

[0015] In the present application, the term "plurality" means two or more, and similarly for other quantifiers.

[0016] Hereinafter, the technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, but it is obvious that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. Based on the embodiments of the present application, other embodiments obtained by those skilled in the art without paying creative labor shall all be within the protection scope of the present invention.

[0017] In the embodiment of the present application, a port indication information report and a terminal are provided to realize switching between CUs of an IAB node.

[0018] Here, the method and the apparatus are based on the same concept, and the principles of solving the problems are similar, so the implementations of the apparatus and the method can refer to each other, and the overlapping parts will not be repeatedly described.

[0019] In addition, the technical solutions according to the embodiments of the present application may be applicable to various systems, particularly 5G systems. For example, the applicable systems may be global system of mobile communication (GSM), code division multiple access (CDMA) systems, wideband code division multiple access (WCDMA), general packet radio service (GPRS) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, long term evolution advanced (LTE-A) systems, universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) systems, 5G New Radio (NR) systems, etc. Any of these various systems may include terminal equipment and network equipment. The system may further include a core network portion, such as an Evolved Packet System (EPS), a 5G system (5GS), or the like.

[0020] The terminal equipment according to the embodiment of the present application may be an equipment providing a voice and / or data connection to a user, a handheld equipment with a wireless connection function, or other processing equipment connected to a wireless modem, etc. In different systems, the name of the terminal equipment may be different, for example, in a 5G system, the terminal equipment may be called User Equipment (UE). The wireless terminal equipment can communicate with one or more core networks (CN) through a Radio Access Network (RAN). The wireless terminal equipment may be a mobile terminal equipment such as a mobile phone (also called a "cellular" phone), and a computer having a mobile terminal equipment, for example, a portable, pocket-sized, handheld, computer-embedded or vehicle-mounted mobile device, which exchanges voice and / or data with the radio access network. For example, the wireless terminal device may be a Personal Communication Service (PCS) telephone, a cordless telephone, a Session Initiated Protocol (SIP) telephone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), etc. The wireless terminal device may be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile console, a remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, or a user device, but the embodiments of the present application are not limited thereto.

[0021] The network device according to the embodiment of the present application may be a base station, which may include multiple cells serving terminals. According to different specific application scenarios, the base station may be called an access point, or a device that communicates with wireless terminal devices through one or more sectors on the air interface in the access network, or other names. The network device may be used to convert received radio frames to Internet Protocol (IP) packets and vice versa, and be a router between the wireless terminal devices and the rest of the access network, where the rest of the access network may include an Internet Protocol (IP) communication network. The network device may coordinate attribute management for the air interface. For example, the network device according to the embodiment of the present application may be a network device (Base Transceiver Station, BTS) in Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), a network device (Node B) in Wide-band Code Division Multiple Access (WCDMA), an evolved network device (evolutionary Node B, eNB or e-NodeB) in a long term evolution (LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), a Home evolved Node B (HeNB), a relay node, a home base station (femto), a pico base station (pico), or the like, but the embodiment of the present application is not limited thereto.In some network configurations, the network equipment may include a centralized unit (CU) node and a distributed unit (DU) node, and the central unit and the distributed units may be located geographically separated.

[0022] Between the network device and the terminal device, multiple input multiple output (MIMO) transmission may be performed using one or multiple antennas, and the MIMO transmission may be single user MIMO (SU-MIMO) or multiple user MIMO (MU-MIMO). Depending on the form and number of the combination of multiple antennas, the MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, and may be diversity transmission, pre-encoding transmission, beamforming transmission, or the like.

[0023] The method of Rel-15 and Rel-16 Type II port selection codebook in the prior art will be explained as follows.

[0024] In NR Rel-15, Type II codebook is defined. It is based on linear combination of beams in an orthogonal beam group and supports Rank 1 and Rank 2 codebooks. For one subband, the Rank 1 codebook is expressed as follows:

number

number

number

number

number

number

[0025] According to the design principle of Rel-15 Type II codebook, the Rel-16 Type II codebook also uses the two-part reporting method, i.e. Part1+Part2. The overhead of Part1 is determined by the configuration of the network side, and the overhead of Part2 is determined by the value of the information field in Part1.

[0026] Part 1 of the Rel-16 Type II codebook includes parameters such as RI, wideband CQI, CQI for each subband, and the total number of non-zero coefficients in all layers, KNZ. Here, the overhead of Part 1 does not change depending on the value of RI. Note that a non-zero coefficient here means that the amplitude of the coefficient is not zero.

[0027] Part 2 of the Rel-16 Type II codebook consists of the following three sets G0 to G2 according to different discard priorities. G0: Spatial domain basis vector indication, rotation factor, strongest coefficient indication SCI for each layer G1: Frequency domain basis vector instruction, intermediate basis vector set initial value Minitial instruction (N3>19), reference amplitude, high-priority non-zero coefficient, non-zero coefficient position instruction corresponding to high-priority non-zero coefficient G2: Low-priority non-zero coefficients, non-zero coefficient position indication corresponding to low priority

[0028] Rel-15 supports semi-persistent CSI reporting including only Type II codebook Part 1, where Part 1 reporting is mainly for monitoring the rank information of Type II CSI and can be used as a reference for resource allocation of Type II codebook reported based on PUSCH. Since the overhead of Type II codebook in Rel-16 is small and there is no need to split and feed back, reporting of only Part 1 of Rel-16 Type II codebook will no longer be supported.

[0029] For the Rel-15 / 16 Type II port selection codebook, W1 of the port selection codebook is expressed as follows:

number

number

number

number

number

number

[0030] First embodiment As shown in FIG. 1, an embodiment of the present application provides a flow chart of steps of a port indication information reporting method, which is applicable to a terminal, and specifically includes the following steps 101 to 103.

[0031] Step 101 is to receive a Channel State Information Reference Signal (CSI-RS) resource delivered from a network side device, the CSI-RS resource including a plurality of CSI-RS ports.

[0032] The embodiments of the present application are applicable to the scenario of non-contiguous CSI-RS port selection for Rel-17.

[0033] CSI-RS (CSI-Reference Signal, channel state information reference signal) refers to a signal for acquiring CSI.

[0034] The network side device can select CSI-RS resources to be distributed to the terminal, and the network side device transmits the beamformed CSI-RS resources to the terminal side via X (X is a positive integer equal to or greater than 1) CSI-RS ports, where X ports means one CSI-RS resource configured by the network side, or the total number of ports or a part of the number of ports of K (K is a positive integer equal to or greater than 1) CSI-RS resources, or a part of the number of ports of each of the K CSI-RS resources.

[0035] A distributed CSI-RS resource may include multiple CSI-RS ports, and each CSI-RS port is associated with one port identifier. In a specific implementation, a network side device may pre-assign a corresponding port identifier to a CSI-RS port. For example, it is assumed that the port numbers of K CSI-RS resources are collectively numbered, that is, after multiple CSI-RS resources are sorted, the port index of each resource is uniformly numbered in ascending or descending order. For example, if the port numbers of the first and second CSI-RS resources after sorting are P1 and P2, respectively, the port index numbers of these two resources are n, n+P1-1, n+P1+1,..., n+P1+P2-1, where n represents the starting value of the port index of the first CSI-RS resource.

[0036] After the terminal receives the CSI-RS resources delivered from the network side device, it executes step 102.

[0037] Step 102 is to select a plurality of target CSI-RS ports from the plurality of CSI-RS ports.

[0038] The target CSI-RS port refers to a CSI-RS port selected by a terminal from multiple CSI-RSs included in the CSI-RS resources delivered from a network side device, and the target CSI-RS port can be used as a port for data transmission / reception between a subsequent network side device and the terminal. Here, the multiple target CSI-RS ports are non-consecutive CSI-RS ports.

[0039] After a terminal receives CSI-RS resources distributed from a network side device, it is possible to select multiple target CSI-RS ports from multiple CSI-RS ports included in the CSI-RS resources, and the specific selection method can be determined according to user needs, and this embodiment does not limit this.

[0040] After the terminal selects multiple target CSI-RS ports from the multiple CSI-RS ports, perform step 103.

[0041] Step 103 is to report port selection indication information to the network side device for indicating a port identifier of the target CSI-RS port.

[0042] The port selection indication information can be used to indicate the port identifier of the target CSI-RS port.

[0043] After the terminal selects multiple target CSI-RS ports from multiple CSI-RS ports, it can determine port selection indication information according to the target CSI-RS ports, and report the port selection indication information to the network side device. In a specific implementation, the port selection indication information may be carried in the channel state information and reported, and the channel state information may include a first part (i.e., part 1) and a second part (i.e., part 2). When reporting the port selection indication information, the port selection indication information may be carried in part 1 of the channel state information and reported, or may be carried in part 2 of the channel state information and reported. Specifically, this will be described in detail in conjunction with the following optional embodiment, and this embodiment will not be further described here.

[0044] In an embodiment of the present application, the terminal can arbitrarily select a target CSI-RS port from the CSI-RS ports delivered from the network side device and indicate the port identifier of the target CSI-RS port in the reported port selection instruction information, thereby enabling the network side device to grasp the CSI-RS port selected by the terminal.

[0045] In one alternative embodiment, reporting the port selection indication information to the network side device may include carrying the port selection indication information in a first part or a second part of channel state information and reporting it to the network side device according to an indication manner of the port selection indication information.

[0046] In this embodiment, the indication method of the port selection indication information may include a bitmap indication method and a combination number indication method. After obtaining the port selection indication information, it is possible to determine whether to include the port selection indication information in part 1 of the channel status information and report it, or to include the port selection indication information in part 2 of the channel status information, according to the indication method of the port selection indication information. Specifically, the procedure is detailed as follows:

[0047] Regarding the method of reporting the port selection indication information, the following several cases are included:

[0048] Case 1 Optionally, reporting the above-mentioned port selection indication information to the network side device includes, when the number of the target CSI-RS ports is the same as the number of ports configured by the network side device, carrying the port selection indication information in the first part or the second part of channel state information and reporting it to the network side device.

[0049] In this embodiment, if the number of transmission ports selected by the terminal is the same as the number of ports configured by the network side device, the port selection indication information can be carried in part 1 or part 2 of the channel state information and reported to the network side device. Specifically, it can be divided into the following two patterns.

[0050] Pattern 1: Port selection is layer-common (i.e., the number of CSI-RS ports on each data transmission layer is the same), the number of ports configured in the terminal by the network side equipment is P1, and a bitmap indication method or combination number indication method with a size of P (i.e., the ports selected for the two polarization directions) can be used as indication information for the port selected on the terminal side (i.e., port selection indication information), and in this case, the port selection indication information can be carried in part 1 or part 2 of the channel state information and reported.

[0051] Pattern 2: Port selection is layer-specific (i.e., the number of CSI-RS ports on each data transmission layer is different), the number of ports configured in the terminal by the network side equipment is P1, and the bitmap indication method or combination number indication method with a size of P can be used as the indication information selected on the terminal side (i.e., the port selection indication information), and in this case, the port selection indication information can be carried in part 1 or part 2 of the channel state information and reported. Here, the combination number indication method can be expressed by the following formula (1).

number

number

[0052] Optionally, the network side allows the terminal to have the same number of ports for each data transmission layer.

number

number

[0053] Part 1 may further include at least one of RI (Rank Indication), wideband CQI (Channel Quality Indicator), CQI of each subband, the total number KNZ of non-zero coefficients in all layers, and the number of frequency domain basis vectors selected by the terminal. Part 2 may further include at least one of SCI, a strongest coefficient indication SCI of each layer, a frequency domain basis vector indication, a reference amplitude, a non-zero coefficient, and a non-zero coefficient position indication.

[0054] Case 2 Optionally, the port selection indication information is carried in the first part or the second part of the channel state information according to the indication manner of the port selection indication information, and reported to the network side device; If the number of the target CSI-RS ports is different from the number of ports configured by the network side device and the number of CSI-RS ports selected on each data transmission layer is the same, carrying the port selection indication information in a first part of the channel state information and reporting it to the network side device; or When the number of the target CSI-RS ports is different from the number of ports configured by the network side device, the indication method of the port selection indication information is a combination number indication method, and the numbers of CSI-RS ports selected on each data transmission layer are the same, carrying the port selection indication information into the second part, and carrying the target port number, which is the number of the target CSI-RS ports, into the first part to report to the network side device.

[0055] In this embodiment, the number of target CSI-RS ports is different from the number of ports configured by the network side device, that is, the network side device configures the number of ports for selecting CSI-RS ports for the terminal, but the terminal does not select the target CSI-RS port according to the number configured by the network side device. In this case, it can be divided into the following two patterns:

[0056] Pattern 1: The number of CSI-RS ports selected on each data transmission layer is the same, that is, the port selection is layer-common. In this case, the port selection indication information can be carried in part 1 of the channel state information and reported. That is, the terminal

number

number

number

number

[0057] Pattern 2: The number of CSI-RS ports selected on each data transmission layer is the same, i.e., the port selection is layer-common, and the indication method of the port selection indication information is a combination number indication method (i.e., bitmap). In this case, the port selection indication information can be carried and reported in part 2 of the channel state information, and the target port number can be carried and reported in part 1 of the channel state information, where the target port number is the number of target CSI-RS ports.

[0058] Case 3 Optionally, the port selection indication information is carried in the first part or the second part of the channel state information according to the indication manner of the port selection indication information, and reported to the network side device; If the number of the target CSI-RS ports is different from the number of ports configured by the network side device, the numbers of CSI-RS ports selected on each data transmission layer are different, and the indication manner of the port selection indication information is a bitmap indication manner, carrying the port selection indication information in a first part of the channel state information and reporting it to the network side device; or If the number of the target CSI-RS ports is the same as the number of ports configured by the network side device, the number of CSI-RS ports selected on each data transmission layer is the same, and the indication manner of the port selection indication information is a combination number indication manner, carrying the port selection indication information in a first part of the channel state information and reporting it to the network side device; or When the number of the target CSI-RS ports is different from the number of ports configured by the network side device, the numbers of CSI-RS ports selected on each data transmission layer are different, and the indication method of the port selection indication information is a combination number indication method, the port selection indication information is carried in a first part of the channel state information, and the target port number is carried in a second part of the channel state information to be reported to the network side device.

[0059] In this embodiment, when the number of target CSI-RS ports is different from the number of ports configured by the network side device, i.e., the terminal does not select ports according to the number of ports configured by the network side device, but the numbers of CSI-RS ports selected on each data transmission layer are different (i.e., the port selection is layer-specific), and the indication method of the port selection indication information is a bitmap indication method (i.e., bitmap), it is possible to carry the port selection indication information in part 1 of the channel state information and report it.

[0060] When the number of target CSI-RS ports is the same as the number of ports configured by the network side device, port selection is layer-common, and the indication method of the port selection indication information is the combination number indication method, it is possible to carry the port selection indication information in part 1 of the channel state information and report it.

[0061] When the number of target CSI-RS ports is different from the number of ports configured by the network side device, the port selection is layer-specific, and the indication method of the port selection indication information is combination number indication information, it is possible to carry the port selection indication information in part 1 of the channel state information and report it, and to carry the target port number in part 2 of the channel state information and report it.

[0062] The above three cases are explained in detail with examples below.

[0063] On the network side, the number of ports for transmitting the beamformed CSI-RS of the lth layer is

number

number

[0064] Example 1: The port selection is Layer-common. The terminal side has a size of

number

number

number

[0065] Example 2: Port selection is layer-specific. For the lth layer, the terminal side selects

number

number

number

number

number

number

number

number

[0066] If a bitmap is used to indicate port selection, the port selection indication information is reported in Part 1. Alternatively, a combination number is used to indicate port selection, and the network side determines whether the terminal side has the same number of ports for each layer.

number

number

number

number

[0067] If the K CSI-RS resources are numbered independently, the terminal can determine the size of the kth resource so that the port selected by the terminal side is determined.

number

number

[0068] By using bitmap instructions, port selection instruction information

number

number

[0069] Alternatively, the number of ports to be selected on each resource may be configured by the network side, and the port selection instruction information may be provided by using the combination number instruction.

number

number

[0070] Case 4 Optionally, the step of reporting the port selection instruction information to the network side device includes: If the number of CSI-RS ports selected on each data transmission layer is the same, carrying the port selection indication information in a first part of channel state information and reporting it to the network side device; or When the numbers of CSI-RS ports selected on each data transmission layer are the same, the port selection indication information is carried in a second part of the channel state information, and the target port number is carried in a first part of the channel state information to be reported to the network side device.

[0071] In this embodiment, if the number of selected CSI-RS ports is not configured on the terminal side by the network side device, the following two patterns can be considered. Pattern 1: When port selection is Layer-common, it is possible to report port selection indication information in part 1 of the channel state information. Pattern 2: When port selection is Layer-common, it is possible to carry the port selection instruction information in part 2 of the channel state information and report it, and also to carry the target port number in part 2 of the channel state information and report it.

[0072] Case 5 Optionally, the step of reporting the port selection instruction information to the network side device includes: If the number of CSI-RS ports selected on each data transmission layer is different and the indication manner of the port selection indication information is a bitmap indication manner, carrying the port selection indication information in a first part of channel state information and reporting it to the network side device; or When the numbers of CSI-RS ports selected on each data transmission layer are different and the indication method of the port selection indication information is a combination number indication method, the port selection indication information is carried in a second part of the channel state information, and a target port number, which is the number of the target CSI-RS ports, is carried in a first part of the channel state information to be reported to the network side device.

[0073] In this embodiment, when the port selection is layer-specific and the port indication method is bitmap, the port selection indication information can be carried in part 1 of the channel state information and reported.

[0074] When port selection is layer-specific and the port indication method is the combination number indication method, it is possible to carry the port selection indication information in part 2 of the channel state information and report it, and to carry the target port number in part 1 and report it.

[0075] The above case where the terminal reports the number of ports selected by itself will be described in detail with the following example.

[0076] The number of port selections is not configured by the network side, and the terminal reports the number of ports of the target CSI-RS port selected by itself. 1) Port selection is Layer-common. The terminal side indicates P' ports selected from P ports by reporting a bitmap or combination number indication information with a size of P, and the port selection indication information is reported in Part 1. Optionally, the port selection indication information is reported in Part 2, and in order to indicate the number of selected ports P' in Part 1,

number

[0077] If a bitmap is used to indicate port selection, the port selection indication information is reported in Part 1. If a combination number is used to indicate port selection, and the terminal side is configured by the network side to select the same number of ports P' for each layer, the port selection indication information is reported in Part 1 or Part 2. Alternatively, if a combination number is used to indicate port selection, the port selection indication information is reported in Part 2, and Part 1 is used to indicate the number of ports P1 selected for each layer.

number

[0078] In this embodiment, in conjunction with the case where the target CSI-RS port belongs to a different CSI-RS, the reporting manner of the port selection indication information can also be detailed as follows.

[0079] Alternatively, when the multiple target CSI-RS ports belong to at least two CSI-RS resources, reporting the above-mentioned port selection indication information to the network side device includes reporting the port selection indication information and resource indication information for indicating the CSI-RS resource to which the target CSI-RS ports belong to the network side device.

[0080] In this embodiment, resource indication information (CRI) may be used to indicate the CSI-RS resource to which the target CSI-RS port belongs.

[0081] When multiple target CSI-RS ports belong to at least two CSI-RS resources, it is necessary to report port selection indication information and resource indication information to the network side device to inform the network side device which port has been specifically selected by the terminal and which CSI-RS resource the selected port belongs to.

[0082] Specific reporting schemes can be detailed in conjunction with optional examples below.

[0083] Optionally, reporting the port selection indication information and / or resource indication information for indicating a CSI-RS resource to which the target CSI-RS port belongs to the network side device includes: When reporting the channel state information through one configured channel state information report, the resource indication information is carried in a third part of the channel state information, and the port selection indication information is carried in a first part or a second part of the channel state information, and then reported to the network side device; or When reporting the channel state information via at least two configured channel state information reports, the method includes carrying the resource indication information in the channel state information of one channel state information report, and carrying the port selection indication information in the first part or the second part of the channel state information of another channel state information report, and reporting them to the network side device.

[0084] In this embodiment, when reporting channel state information via one configured channel state information report (CSI reporting), it is possible to carry resource indication information in the third part (i.e., part 0) of the channel state information and report it, and to carry port selection indication information in part 1 or part 2 of the channel state information and report it.

[0085] When reporting channel state information via at least two configured CSI reportings, it is possible to carry resource indication information in the channel state information of one CSI reporting and report it, and to carry port selection indication information in part 1 or part 2 of the channel state information of the other CSI reporting and report it.

[0086] Specifically, when reporting CRI and port selection indication information through one CSI reporting, the CSI report may be divided into three parts, i.e., Part0+Part1+Part2, and reported, and the CRI may be included in Part0. The port selection may be completely indicated and determined by the CRI report, or may be determined according to the port indication information reported in Part1 and / or Part2. That is, the port indication method can be determined according to the following methods: 1. The port selection indication is no longer reported, and the port selected by the terminal is the total number of ports of each resource indicated by the CRI; 2. The port selection indication information is reported in Part1 and / or Part2, and the methods described in the above cases 1 to 5 can be used as the method of reporting the port selection information, and this embodiment will not be described again here.

[0087] In this embodiment, the CSI-RS resource corresponds to an antenna interface, and the port selection indication information can be further used to indicate a target CSI-RS port in the same polarization direction, that is, the location of another target CSI-RS port in the same polarization direction is the same as the location of the target CSI-RS port in the polarization direction.

[0088] To summarize the above, in an embodiment of the present application, a terminal receives CSI-RS resources distributed from a network side device, the CSI-RS resources including a plurality of CSI-RS ports, thereby selecting a plurality of target CSI-RS ports from the plurality of CSI-RS ports, and reporting port selection instruction information for indicating the port identifiers of the target CSI-RS ports to the network side device. In the embodiment of the present application, the reported port selection instruction information indicates the port identifier of the selected target CSI-RS port, thereby enabling the network side device to grasp the CSI-RS port selected by the terminal.

[0089] The above options are described in more detail below in conjunction with the three examples.

[0090] Example 1: Port selection instruction Assume that the base station configures the UE with one CSI-RS resource including X=32 ports, or configures K=2 CSI-RS resources, and the total number of ports of the two resources is 32. Assume further that the ports selected for the two polarization directions are the same, i.e., P=X / 2=16, and the data transmission layer L=2. If K=2, the IDs of these two CSI-RS resources are 10 and 20, respectively, and the corresponding numbers of ports configured are 24 and 8, respectively, and after sorting these two resources, one resource with a resource ID of 10 is the first CSI-RS resource, and the other resource is the second CSI-RS resource, and the port starting value n of the first resource is 3000, then the ports of these two resources can be numbered together as 3000,...,3023,3024,...,3031.

[0091] (Situation 1): If the network side configures the terminal with P'=12, that is, allows the terminal to select 12 ports from one polarization direction (i.e., the selected CSI-RS port has the same position in the two polarization directions of the antenna), it is possible to indicate the port selected by the terminal with a bitmap whose size is 16 bits, for example, one polarization direction shown in the first row of Table 1, and each bit in the table corresponds to one port. In the table, "1" indicates that the port has been selected by the terminal, and "0" indicates that the port has not been selected. Then, the port selection instruction for the other polarization direction is the same as the first polarization direction, and there is no need to report the instruction.

[0092] [Table 1]

[0093] Alternatively, the selected port is indicated by the number of combinations whose size is as shown in the following formula (3) (unit: bits). The port indication information may be reported in Part 1 or in Part 2.

number

[0094] When port selection is Layer-common, the port selection instruction information instructs port selection of these two layers.

[0095] In the case where port selection is layer-specific, if the port selection instruction is a bitmap instruction, the bitmap instructions for port selection in the first and second layers are as shown in Tables 2 and 3, respectively.

[0096] [Table 2]

[0097] [Table 3]

[0098] In Part 1 or Part 2, L*P=32 bits or

number

[0099] (Situation 2): The number of ports selected and reported by the terminal is P'=12. If bitmap indication is used for port selection, the indication method is the same as that shown in Table 1 in Situation 1, and the port indication information is reported in Part 1. If the port indication information is reported in Part 2, the number of ports selected by the terminal is indicated in Part 1.

number

number

[0100] If port selection is layer-common and layer-specific, a bitmap or combination number is used to indicate port selection, and the port selection indication information is reported in Part 2, and the number of ports selected by the terminal is reported in Part 1. For layer-specific,

number

number

[0101] [Table 4]

[0102] (Situation 3): The number of ports for beamforming transmission in the first and second layers is determined by the network side.

number

[0103] [Table 5]

[0104] If the number of ports selected by the terminal is configured by the network side and the number of ports P′=8 ports, the size of the port indication information report for different port selection methods is as shown in Table 6.

[0105] [Table 6]

[0106] Example 2: port selection instruction, K=2 resources are configured, and each resource port number is independently numbered, and the number of transmission layers L=2. Assume that the network side configures K=2 CSI-RS resource IDs to be 10 and 20, respectively, the number of ports configured corresponding to them are P1=24 and P2=8, respectively, and the port numbers of these two resources are 3000, ... 3023 and 3000, ..., 30007, respectively. If a bitmap is used to indicate port selection, the indication method is the same as that described in the first embodiment. If an indication by the number of combinations is used, the difference from the first embodiment is that for each resource, indication information for indicating the port selected on the resource is reported independently. If the number of ports selected on each resource is not configured by the network side and an indication by the number of combinations is used, the port indication information can be reported only in Part 2, and the number of ports selected on each resource is indicated by the number of combinations in Part 1, respectively. If the ports of each layer are selected individually, the number of ports selected on each resource is indicated via the number of combinations indication information in Part 1, and the number of combinations is reported to indicate the port selected for each layer, respectively.

[0107] Example 3: CRI and port selection instructions If the network side configures K=4 CSI-RS resources for beamformed CSI-RS transmission in the terminal and reports them via two CSI reportings, the terminal reports the CRI and port selection indication in the following method 1.

[0108] Method 1: The terminal reports two CSI reports, one of which includes a CRI indication and the other of which includes a port selection indication. It is assumed that the first CSI reporting reports CRI indication information indicating that K'=2 CSI-RS resources have been selected by the terminal. The second CSI reporting reports a port selection indication. If the port numbers of the K'=2 CSI-RS resources are numbered collectively, the port selection indication is indicated in the manner described in the first embodiment. If the port numbers of the K'=2 CSI-RS resources are numbered independently, the port selection indication is indicated in the manner described in the second embodiment. The UE reports the CRI and the port selection indication in the following method 2 via one CSI reporting. Method 2: Report the CRI and port selection indication via one CSI reporting.

[0109] The above is a description of the method for reporting port selection indication information according to the embodiment of the present application. The following describes a terminal according to the embodiment of the present application in conjunction with the drawings.

[0110] Second embodiment As shown in FIG. 2, the embodiment of the present application further provides a structural block diagram of a terminal, the terminal comprising: A CSI-RS resource receiving module 210 for receiving a channel state information reference signal (CSI-RS) resource delivered from a network side device, the CSI-RS resource including a plurality of CSI-RS ports; a target CSI-RS port selection module 220 for selecting a plurality of target CSI-RS ports from the plurality of CSI-RS ports; and a port indication information reporting module 230 for reporting port selection indication information for indicating a port identifier of the target CSI-RS port to the network side device.

[0111] Optionally, the port indication information reporting module 230 includes a port indication information reporting unit for carrying the port selection indication information into the first part or the second part of the channel state information according to an indication manner of the port selection indication information and reporting it to the network side device.

[0112] Optionally, the port indication information reporting module 230 includes a first indication information reporting unit for carrying the port selection indication information in the first part or the second part of the channel state information and reporting it to the network side device when the number of the target CSI-RS ports and the number of ports configured by the network side device are the same.

[0113] Optionally, the port indication information reporting unit comprises: a second indication information reporting unit for carrying the port selection indication information into a first part of the channel state information and reporting it to the network side device when the number of the target CSI-RS ports is different from the number of ports configured by the network side device, the indication manner of the port selection indication information is a bitmap indication manner, and the numbers of CSI-RS ports selected on each data transmission layer are the same; or and a third indication information reporting unit for carrying the port selection indication information into the second part and carrying the target port number, which is the number of target CSI-RS ports, into the first part to report to the network side device when the number of the target CSI-RS ports is different from the number of ports configured by the network side device, the indication method of the port selection indication information is a combination number indication method, and the numbers of CSI-RS ports selected on each data transmission layer are the same.

[0114] Optionally, the port indication information reporting unit comprises: a fourth indication information reporting unit for carrying the port selection indication information into a first part of the channel state information and reporting it to the network side device when the number of the target CSI-RS ports is different from the number of ports configured by the network side device, the numbers of CSI-RS ports selected on each data transmission layer are different, and the indication manner of the port selection indication information is a bitmap indication manner; a fifth indication information reporting unit for carrying the port selection indication information into a first part of the channel state information and reporting it to the network side device, when the number of the target CSI-RS ports is the same as the number of ports configured by the network side device, the numbers of CSI-RS ports selected on each data transmission layer are the same, and the indication manner of the port selection indication information is a combination number indication manner; The channel state information reporting unit includes a sixth indication information reporting unit for carrying the port selection indication information into a first part of the channel state information and the target port number into a second part of the channel state information to report to the network side device when the number of the target CSI-RS ports is different from the number of ports configured by the network side device, the numbers of CSI-RS ports selected on each data transmission layer are different, and the indication manner of the port selection indication information is a combination number indication manner.

[0115] Optionally, the port indication information reporting module 230: a seventh indication information reporting unit for carrying the port selection indication information into a first part of the channel state information and reporting it to the network side device when the port numbers of the CSI-RS ports selected on each data transmission layer are the same; an eighth indication information reporting unit for carrying the port selection indication information into a second part of the channel state information and carrying the target port number into a first part of the channel state information to report to the network side device when the port numbers of the CSI-RS ports selected on each data transmission layer are the same; a ninth indication information reporting unit for carrying the port selection indication information into a first part of channel state information and reporting it to the network side device when the numbers of CSI-RS ports selected on each data transmission layer are different and the indication manner of the port selection indication information is a bitmap indication manner; a tenth indication information reporting unit for carrying the port selection indication information into a second part of the channel state information and a target port number, which is the number of the target CSI-RS ports, into a first part of the channel state information to report them to the network side device when the numbers of CSI-RS ports selected on each data transmission layer are different and the indication manner of the port selection indication information is a combination number indication manner.

[0116] Optionally, when the multiple target CSI-RS ports belong to at least two CSI-RS resources, the port indication information reporting module 230 includes a resource indication reporting unit for reporting the port selection indication information and / or resource indication information for indicating the CSI-RS resource to which the target CSI-RS port belongs to the network side device.

[0117] Optionally, the resource indication reporting unit comprises: a first resource indication reporting subunit for carrying the resource indication information in a third part of the channel state information and carrying the port selection indication information in the first part or the second part of the channel state information to report the channel state information to the network side device when reporting the channel state information through one configured channel state information report; When reporting channel state information through at least two configured channel state information reports, the channel state information report includes a second resource indication reporting subunit for carrying the resource indication information in the channel state information of one channel state information report, and carrying the port selection indication information in the first part or the second part of the channel state information of another channel state information report, and reporting them to the network side device.

[0118] Optionally, the CSI-RS resource corresponds to an antenna interface, and the port selection indication information is further used to indicate a target CSI-RS port in the same polarization direction.

[0119] In an embodiment of the present application, a terminal receives a channel state information reference signal (CSI-RS) resource distributed from a network side device, the CSI-RS resource including a plurality of CSI-RS ports, and can select a plurality of target CSI-RS ports from the plurality of CSI-RS ports and report port selection indication information for indicating a port identifier of the target CSI-RS port to the network side device. In the embodiment of the present application, the reported port selection indication information indicates a port identifier of the selected target CSI-RS port, so that the network side device can grasp the CSI-RS port selected by the terminal.

[0120] It should be noted that the division into units in the embodiments of the present application is merely schematic and is a division into logical functions, and other division methods may be used in actual implementation. In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist physically separately, or two or more units may be integrated into one unit. The integrated units may be implemented in the form of hardware or software functional units.

[0121] The integrated unit may be implemented in the form of a software functional unit and stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the essential part of the technical proposal of the present application, or the part that contributes to the related art, or all or a part of the technical proposal, may be embodied in the form of a software product. The computer software product is stored in a storage medium and includes some instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) or a processor to execute all or a part of the steps of the method according to each embodiment of the present application. The above storage medium includes any medium capable of storing program code, such as a USB flash drive, a portable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0122] It should be noted here that the virtual device according to the embodiment of the present application can realize all the method steps realized by the above method embodiment and can achieve the same technical effects, but the same parts and beneficial effects as those of the method embodiment in this embodiment will not be described in detail here.

[0123] An embodiment of the present application provides a terminal including a memory, a transceiver, and a processor, The memory 320 is for storing computer programs. The transceiver 310 is for transmitting and receiving data under the control of the processor 300. The processor executes the computer program in the memory. an operation of causing the transceiver 310 to be used for receiving a channel state information reference signal (CSI-RS) resource delivered from a network side device, the CSI-RS resource including a plurality of CSI-RS ports; a processor 300 reading from said plurality of CSI-RS ports to be used to select a target CSI-RS port; The terminal is further provided, wherein the transceiver 310 is for performing an operation of causing port selection indication information to be further used for reporting to the network side device for indicating a port identifier of the target CSI-RS port.

[0124] Optionally, when reporting port selection indication information to the network side device, the transceiver 310 is specifically used to carry the port selection indication information into the first part or the second part of the channel state information according to an indication manner of the port selection indication information, and report it to the network side device.

[0125] Alternatively, when reporting port selection indication information to the network side device, specifically when the number of the target CSI-RS ports is the same as the number of ports configured by the network side device, the transceiver 310 is used to carry the port selection indication information in the first part or the second part of the channel state information and report it to the network side device.

[0126] Optionally, when the transceiver 310 carries the port selection indication information in the first part or the second part of the channel state information according to the indication manner of the port selection indication information and reports it to the network side device, specifically: If the number of the target CSI-RS ports is different from the number of ports configured by the network side device, the indication manner of the port selection indication information is a bitmap indication manner, and the numbers of CSI-RS ports selected on each data transmission layer are the same, carrying the port selection indication information in a first part of the channel state information and reporting it to the network side device; or When the number of the target CSI-RS ports is different from the number of ports configured by the network side device, the indication method of the port selection indication information is a combination number indication method, and the numbers of CSI-RS ports selected on each data transmission layer are the same, the port selection indication information is carried in the second part and the target port number, which is the number of the target CSI-RS ports, is carried in the first part and reported to the network side device.

[0127] Optionally, when the transceiver 310 carries the port selection indication information in the first part or the second part of the channel state information according to the indication manner of the port selection indication information and reports it to the network side device, specifically: If the number of the target CSI-RS ports is different from the number of ports configured by the network side device, the numbers of CSI-RS ports selected on each data transmission layer are different, and the indication manner of the port selection indication information is a bitmap indication manner, carrying the port selection indication information in a first part of the channel state information and reporting it to the network side device; or If the number of the target CSI-RS ports is the same as the number of ports configured by the network side device, the number of CSI-RS ports selected on each data transmission layer is the same, and the indication manner of the port selection indication information is a combination number indication manner, carrying the port selection indication information in a first part of the channel state information and reporting it to the network side device; or When the number of the target CSI-RS ports is different from the number of ports configured by the network side device, the numbers of CSI-RS ports selected on each data transmission layer are different, and the indication method of the port selection indication information is a combination number indication method, the port selection indication information is used to carry the port selection indication information in a first part of the channel state information and the target port number in a second part of the channel state information to report to the network side device.

[0128] Optionally, when the transceiver 310 reports the port selection instruction information to the network side device, it specifically: If the number of CSI-RS ports selected on each data transmission layer is the same, the port selection indication information is carried in a first part of channel state information and reported to the network side device; or, if the number of CSI-RS ports selected on each data transmission layer is the same, the port selection indication information is carried in a second part of channel state information and the target port number is carried in the first part of the channel state information and reported to the network side device; or If the number of CSI-RS ports selected on each data transmission layer is different and the indication manner of the port selection indication information is a bitmap indication manner, carrying the port selection indication information in a first part of channel state information and reporting it to the network side device; or When the numbers of CSI-RS ports selected on each data transmission layer are different and the indication method of the port selection indication information is a combination number indication method, the port selection indication information is carried in the second part of the channel state information, and the target port number, which is the number of the target CSI-RS ports, is carried in the first part of the channel state information and used to report to the network side device.

[0129] Alternatively, when the multiple target CSI-RS ports belong to at least two CSI-RS resources, when reporting port selection indication information to the network side device, the transceiver 310 is specifically used to report the port selection indication information and / or resource indication information for indicating the CSI-RS resource to which the target CSI-RS ports belong to the network side device.

[0130] Optionally, when the transceiver 310 reports the port selection indication information and the resource indication information to the network side device, the transceiver 310 specifically: When reporting the channel state information through one configured channel state information report, the resource indication information is carried in a third part of the channel state information, and the port selection indication information is carried in a first part or a second part of the channel state information, and then reported to the network side device; or When reporting channel state information via at least two configured channel state information reports, the resource indication information is carried in the channel state information of one channel state information report, and the port selection indication information is carried in the first part or the second part of the channel state information of another channel state information report, and is used to report to the network side device.

[0131] Optionally, the CSI-RS resource corresponds to an antenna interface, and the port selection indication information is further used to indicate a target CSI-RS port in the same polarization direction.

[0132] In FIG. 3, the bus architecture may include any number of interconnected buses and bridges, specifically connecting various circuits between one or more processors, such as processor 300, and memory, such as memory 320. The bus architecture may also connect various other circuits, such as peripherals, voltage regulators, and power management circuits, which are known in the art and will not be described further herein. The bus interface provides an interface. The transceiver 310 may include multiple elements, i.e., a transmitter and a receiver, and provides a means for communicating with various other devices over a transmission medium. These transmission media include transmission media such as wireless channels, wired channels, optical cables, etc. The processor 300 is responsible for managing the bus architecture and general processing, and the memory 320 may store data used by the processor 300 when performing operations.

[0133] The processor 300 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or a complex programmable logic device (CPLD), and the processor may employ a multi-core architecture.

[0134] The processor is used to execute any of the methods according to the embodiments of the present application according to the executable instructions obtained by calling the computer program stored in the memory. The processor and the memory may be physically separated.

[0135] It should be noted here that the above-mentioned apparatus according to the embodiment of the present application can realize all the method steps realized by the above-mentioned method embodiment and can achieve the same technical effects, but the same parts and beneficial effects as those of the method embodiment in this embodiment will not be described in detail again here.

[0136] An embodiment of the present application further provides a processor-readable storage medium storing a computer program, the computer program being for causing the processor to execute a port indication information reporting method.

[0137] The processor-readable storage medium may be any available medium or data storage device that can be accessed by the processor, including, but not limited to, magnetic storage devices (e.g., floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical storage devices (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor memories (e.g., ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state drives (SSD)), etc.

[0138] It will be appreciated by those skilled in the art that the embodiments of the present application may be provided as a method, a system, or a computer program product. Thus, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Moreover, the present application may take the form of a computer program product embodied in one or more computer usable storage mediums (including, but not limited to, magnetic disk memories, optical memories, etc.) that contain computer usable program code.

[0139] The present application is described with reference to flowcharts and / or block diagrams of methods, devices (systems) and computer program products according to embodiments of the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and combinations of flows and / or blocks in the flowcharts and / or block diagrams, can be realized by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to form an apparatus, and the instructions executed by the processor of the computer or other programmable data processing device form an apparatus for implementing the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0140] These processor-executable instructions may be stored in a processor-readable memory that can cause a computer or other programmable data processing device to operate in a particular manner, with the instructions stored in the processor-readable memory forming an article of manufacture that includes an instruction apparatus that implements the functions specified in one or more flows of the flowcharts and / or one or more blocks of the block diagrams.

[0141] These processor-executable instructions may be loaded into a computer or other programmable data processing device and cause the computer or other programmable data processing device to perform a series of operational steps to form a computer-implemented process, the instructions executing on the computer or other programmable data processing device providing steps for implementing the functions specified in one or more flows of the flowcharts and / or one or more blocks of the block diagrams.

[0142] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Therefore, if these modifications and variations of the present application fall within the scope of the claims of the present application and the scope of equivalent techniques, the present application also includes these modifications and variations.

Claims

1. A port indication information reporting method applied to a terminal, comprising: Receiving a channel state information reference signal (CSI-RS) resource distributed from a network side device, the CSI-RS resource including a plurality of CSI-RS ports; selecting a plurality of target CSI-RS ports from the plurality of CSI-RS ports; Carrying port selection indication information in the first part or the second part of the channel state information and reporting it to the network side device; A port indication information reporting method, in which the port selection indication information is used to indicate a target CSI-RS port in the same polarization direction.

2. Carrying the port selection indication information in the first part or the second part of the channel state information and reporting it to the network side device, If the number of the target CSI-RS ports is different from the number of ports configured by the network side device, the indication manner of the port selection indication information is a bitmap indication manner, and the number of CSI-RS ports selected on each data transmission layer is the same, carry the port selection indication information into a first part of the channel state information and report it to the network side device; or 2. The method of claim 1, further comprising: when the number of the target CSI-RS ports is different from the number of ports configured by the network side device, the indication method of the port selection indication information is a combination number indication method, and the numbers of CSI-RS ports selected on each data transmission layer are the same, carrying the port selection indication information in the second part and carrying a target port number, which is the number of the target CSI-RS ports, in the first part to report to the network side device.

3. Carrying the port selection indication information in the first part or the second part of the channel state information and reporting it to the network side device, If the number of the target CSI-RS ports is different from the number of ports configured by the network side device, the number of CSI-RS ports selected on each data transmission layer is different, and the indication manner of the port selection indication information is a bitmap indication manner, the port selection indication information is carried in a first part of the channel state information and reported to the network side device; or If the number of the target CSI-RS ports is the same as the number of ports configured by the network side device, the number of CSI-RS ports selected on each data transmission layer is the same, and the indication manner of the port selection indication information is a combination number indication manner, the port selection indication information is carried in a first part of the channel state information and reported to the network side device; or The method of claim 1, further comprising: when the number of the target CSI-RS ports is different from the number of ports configured by the network side device, the numbers of CSI-RS ports selected on each data transmission layer are different, and the indication manner of the port selection indication information is a combination number indication manner, carrying the port selection indication information in a first part of the channel state information and carrying the target port number in a second part of the channel state information to report to the network side device.

4. Carrying the port selection indication information in the first part or the second part of the channel state information and reporting it to the network side device, If the number of CSI-RS ports selected on each data transmission layer is the same, the port selection indication information is carried in a first part of the channel state information and reported to the network side device; or If the number of CSI-RS ports selected on each data transmission layer is the same, carry the port selection indication information into the second part of the channel state information and carry the target port number into the first part of the channel state information to report to the network side device; or If the number of CSI-RS ports selected on each data transmission layer is different and the indication manner of the port selection indication information is a bitmap indication manner, the port selection indication information is carried in a first part of channel state information and reported to the network side device; or The method of claim 1, further comprising: when the numbers of CSI-RS ports selected on each data transmission layer are different and the indication manner of the port selection indication information is a combination number indication manner, carrying the port selection indication information in a second part of the channel state information, and carrying a target port number, which is the number of the target CSI-RS ports, in a first part of the channel state information to report to the network side device.

5. If the multiple target CSI-RS ports belong to at least two CSI-RS resources, The step of reporting the port selection instruction information to the network side device is as follows: The method of claim 1, further comprising: reporting to the network side device the port selection indication information and / or resource indication information for indicating the CSI-RS resource to which the target CSI-RS port belongs.

6. Carrying the port selection indication information in the first part or the second part of the channel state information and reporting it to the network side device, When reporting the channel state information through one configured channel state information report, the resource indication information is carried in a third part of the channel state information, and the port selection indication information is carried in a first part or a second part of the channel state information, and then reported to the network side device; or 6. The method according to claim 5, further comprising: when reporting channel state information via at least two configured channel state information reports, carrying the resource indication information in the channel state information of one channel state information report, and carrying the port selection indication information in the first part or the second part of the channel state information of another channel state information report, and reporting the channel state information to the network side device.

7. The method of claim 1 , wherein the CSI-RS resource corresponds to an antenna interface.

8. A terminal including a memory, a transceiver, and a processor, The memory is for storing a computer program, and the transceiver is for transmitting and receiving data under the control of the processor, and the processor reads the computer program in the memory and an operation of causing the transceiver to be used for receiving a channel state information reference signal (CSI-RS) resource distributed from a network side device, the CSI-RS resource including a plurality of CSI-RS ports; causing the processor to be used to select a plurality of target CSI-RS ports from the plurality of CSI-RS ports; and the transceiver is adapted to carry port selection indication information into the first part or the second part of channel state information for further use in reporting to the network side device; A terminal, wherein the port selection indication information is used to indicate a target CSI-RS port in the same polarization direction.

9. When the transceiver carries the port selection indication information in the first part or the second part of the channel state information and reports it to the network side device, specifically, If the number of the target CSI-RS ports is different from the number of ports configured by the network side device, the indication manner of the port selection indication information is a bitmap indication manner, and the number of CSI-RS ports selected on each data transmission layer is the same, carry the port selection indication information into a first part of the channel state information and report it to the network side device; or 9. The terminal of claim 8, wherein when the number of the target CSI-RS ports is different from the number of ports configured by the network side device, the indication method of the port selection indication information is a combination number indication method, and the numbers of CSI-RS ports selected on each data transmission layer are the same, the port selection indication information is carried in the second part, and the target port number, which is the number of the target CSI-RS ports, is carried in the first part and used to report to the network side device.

10. When the transceiver carries the port selection indication information in the first part or the second part of the channel state information and reports it to the network side device, specifically, If the number of the target CSI-RS ports is different from the number of ports configured by the network side device, the number of CSI-RS ports selected on each data transmission layer is different, and the indication manner of the port selection indication information is a bitmap indication manner, the port selection indication information is carried in a first part of the channel state information and reported to the network side device; or If the number of the target CSI-RS ports is the same as the number of ports configured by the network side device, the number of CSI-RS ports selected on each data transmission layer is the same, and the indication manner of the port selection indication information is a combination number indication manner, the port selection indication information is carried in a first part of the channel state information and reported to the network side device; or The terminal of claim 8, wherein when the number of the target CSI-RS ports is different from the number of ports configured by the network side device, the numbers of CSI-RS ports selected on each data transmission layer are different, and the indication method of the port selection indication information is a combination number indication method, the port selection indication information is carried in a first part of the channel state information and the target port number is carried in a second part of the channel state information to be reported to the network side device.

11. When the transceiver carries the port selection indication information in the first part or the second part of the channel state information and reports it to the network side device, specifically, If the number of CSI-RS ports selected on each data transmission layer is the same, the port selection indication information is carried in a first part of the channel state information and reported to the network side device; or If the number of CSI-RS ports selected on each data transmission layer is the same, carry the port selection indication information into the second part of the channel state information and carry the target port number into the first part of the channel state information to report to the network side device; or If the number of CSI-RS ports selected on each data transmission layer is different and the indication manner of the port selection indication information is a bitmap indication manner, the port selection indication information is carried in a first part of channel state information and reported to the network side device; or The terminal of claim 8, wherein when the numbers of CSI-RS ports selected on each data transmission layer are different and the indication method of the port selection indication information is a combination number indication method, the port selection indication information is carried in a second part of the channel state information, and a target port number, which is the number of the target CSI-RS ports, is carried in a first part of the channel state information and used to report to the network side device.

12. The terminal of claim 8 , wherein the CSI-RS resource corresponds to an antenna interface.

13. A processor-readable storage medium having stored thereon a computer program, the computer program being for causing the processor to execute a method according to any one of claims 1 to 7.

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