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WO2023016339A1 - Csi上报方法、接收方法、装置、终端和网络侧设备 - Google Patents

Csi上报方法、接收方法、装置、终端和网络侧设备 Download PDF

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Publication number
WO2023016339A1
WO2023016339A1 PCT/CN2022/110268 CN2022110268W WO2023016339A1 WO 2023016339 A1 WO2023016339 A1 WO 2023016339A1 CN 2022110268 W CN2022110268 W CN 2022110268W WO 2023016339 A1 WO2023016339 A1 WO 2023016339A1
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Prior art keywords
csi
variable
target
network side
target variables
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English (en)
French (fr)
Inventor
任千尧
宋扬
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports

Definitions

  • the present application belongs to the field of communication technology, and in particular relates to a channel state information (Channel State Information, CSI) reporting method, receiving method, device, terminal and network side equipment.
  • CSI Channel State Information
  • the CSI can be used by the signal sending terminal to optimize the sending of the signal, so that the signal sent by it can better match the state of the channel.
  • the network side configures the number of variables on the terminal before the terminal reports the CSI, and the number of variables corresponding to the CSI reported by the terminal is the number configured on the network side. For example, the network side configures the number L of beams, and the terminal reports the CSI corresponding to the L beams. In this way, since the variable corresponding to the CSI reported by the terminal is always the quantity configured on the network side, the flexibility of reporting the CSI by the terminal is poor.
  • Embodiments of the present application provide a CSI reporting method, a receiving method, a device, a terminal, and a network side device, so as to solve the problem of poor flexibility in reporting CSI by a terminal.
  • a method for reporting CSI including:
  • the terminal determines a first number of target variables according to channel conditions, where the first number is not greater than the second number of target variables indicated by the network side;
  • the terminal reports CSI, and the number of the target variables corresponding to the CSI is the first number.
  • a method for receiving CSI including:
  • the network side device receives the CSI, and the number of target variables corresponding to the CSI is a first number, and the first number is not greater than the second number of the target variables indicated by the network side.
  • a CSI reporting device including:
  • a determining module configured to determine a first number of target variables according to channel conditions, where the first number is not greater than the second number of target variables indicated by the network side;
  • a reporting module configured to report CSI, where the number of the target variables corresponding to the CSI is the first number.
  • a CSI receiving device including:
  • a receiving module configured to receive CSI, the number of target variables corresponding to the CSI is a first number, and the first number is not greater than the second number of target variables indicated by the network side.
  • a terminal including a processor, a memory, and a program or instruction stored in the memory and operable on the processor.
  • the program or instruction is executed by the processor, the present invention is realized.
  • the steps of the CSI reporting method provided in the embodiment of the application.
  • a terminal including a processor and a communication interface, wherein the communication interface is used to: determine a first number of target variables according to channel conditions, wherein the first number is not greater than that indicated by the network side The second quantity of the target variable; the terminal reports CSI, and the quantity of the target variable corresponding to the CSI is the first quantity.
  • a network side device including a processor, a memory, and a program or instruction stored in the memory and operable on the processor, when the program or instruction is executed by the processor.
  • a network side device including a processor and a communication interface, wherein the communication interface is used to: receive CSI, the number of target variables corresponding to the CSI is a first number, and the first number not greater than the second quantity of the target variable indicated by the network side.
  • a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by the processor, the steps of the CSI reporting method provided by the embodiment of the present application are implemented, Alternatively, when the program or instruction is executed by the processor, the steps of the CSI receiving method provided by the embodiment of the present application are implemented.
  • a computer program product is provided, the computer program product is stored in a non-volatile storage medium, and the computer program product is executed by at least one processor to implement the CSI reporting method provided by the embodiment of the present application or, the computer program product is executed by at least one processor to implement the steps of the CSI receiving method provided by the embodiment of the present application.
  • the terminal determines the first number of target variables according to channel conditions, wherein the first number is not greater than the second number of target variables indicated by the network side; the terminal reports CSI, and the CSI The corresponding quantity of the target variable is the first quantity. In this way, since the number of target variables is determined according to channel conditions, the flexibility of reporting CSI by the terminal is improved.
  • FIG. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application is applicable
  • FIG. 2 is a flow chart of a CSI reporting method provided by an embodiment of the present application.
  • FIG. 3 is a flowchart of a CSI receiving method provided in an embodiment of the present application.
  • FIG. 4 is a structural diagram of a CSI reporting device provided in an embodiment of the present application.
  • FIG. 5 is a structural diagram of a CSI receiving device provided in an embodiment of the present application.
  • FIG. 6 is a structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 7 is a structural diagram of a terminal provided in an embodiment of the present application.
  • FIG. 8 is a structural diagram of a network side device provided by an embodiment of the present application.
  • first, second and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or described herein and that "first" and “second” distinguish objects. It is usually one category, and the number of objects is not limited. For example, there may be one or more first objects.
  • “and/or” in the description and claims means at least one of the connected objects, and the character “/” generally means that the related objects are an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution-Advanced
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned system and radio technology, and can also be used for other systems and radio technologies.
  • the following description describes the New Radio (New Radio, NR) system for example purposes, and uses NR terms in most of the following descriptions. These technologies can also be applied to applications other than NR system applications, such as the 6th generation (6th Generation, 6G) communication system.
  • 6G 6th Generation
  • Fig. 1 shows a block diagram of a wireless communication system to which the embodiment of the present application is applicable.
  • the wireless communication system includes a terminal 11 and a network side device 12 .
  • the terminal 11 can also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 can be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook Computer, personal digital assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), augmented reality (augmented reality, AR )/virtual reality (virtual reality, VR) equipment, robot, wearable device (Wearable Device), vehicle equipment (Vehicle User Equipment, VUE), pedestrian terminal (Pedestrian User Equipment, PUE), smart home (with wireless communication function home devices, such as refrigerators, TVs, washing machines or furniture, etc.), wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands,
  • the network side device 12 may be a core network element or a base station, wherein the core network element may be an Access and Mobility Management Function (Access and Mobility Management Function, AMF), a Mobility Management Entity (Mobility Management Entity, MME) and the like.
  • AMF Access and Mobility Management Function
  • MME Mobility Management Entity
  • the aforementioned base stations may be referred to as Node B, evolved Node B, access point, Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (Extended Service Set, ESS), B Node, Evolved Node B (eNB), Home Node B, Home Evolved Node B, Wireless Local Area Networks (WLAN) Access Point, Wireless Fidelity, WiFi) node, Transmitting Receiving Point (Transmitting Receiving Point, TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in this application In the embodiment, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.
  • FIG. 2 is a flowchart of a CSI reporting method provided in an embodiment of the present application. As shown in FIG. 2, the following steps are included:
  • Step 201 the terminal determines a first number of target variables according to channel conditions, where the first number is not greater than the second number of target variables indicated by the network side.
  • the above-mentioned target variable may be one or more variables related to CSI reporting, for example: beam, delay path, tap, etc.
  • variables related to CSI reporting for example: beam, delay path, tap, etc.
  • the first numbers of different variables may be different, but not greater than the number indicated by the network side.
  • the second number of target variables indicated by the network side may be configured by the network side through high-layer parameters, and may be dynamically or pre-configured, which is not limited in the present disclosure.
  • step 201 can determine the first number of beams as L 0 according to the channel conditions, where L 0 is not greater than L;
  • the network side indicates the number of taps as a variable is M v , then step 201 may determine the first number of taps to be M 0 according to channel conditions, where M 0 is not greater than M v .
  • the foregoing channel conditions include actual channel conditions, such as measurement information of beams and delay paths.
  • the above-mentioned first number is not greater than the second number of the target variable indicated by the network side.
  • the first number may be smaller than the second number of the target variable indicated by the network side.
  • the first quantity may be equal to the second quantity of the target variable indicated by the network side.
  • Step S201 can be understood as determining a first number of target variables according to channel conditions.
  • Step S201 includes: according to channel conditions, determine L 0 beams, wherein the network side indicates L beams, L 0 is not greater than L; according to channel conditions, determine M 0 taps, wherein the network side indicates M v taps , M 0 is not greater than M v .
  • Step 202 the terminal reports CSI, and the number of the target variables corresponding to the CSI is the first number.
  • the quantity of the target variable corresponding to the above-mentioned CSI is the first quantity may be that the CSI is reported according to the first quantity of the above-mentioned target variable, that is, the CSI is generated and reported based on the first quantity of the target variable.
  • the number of target variables corresponding to the CSI is the above-mentioned first number, instead of directly reporting the CSI corresponding to the number indicated (or called configuration) by the network side, thereby improving the reporting of CSI by the terminal.
  • flexibility that is, to report CSI flexibly according to channel conditions.
  • this embodiment of the present application can reduce some or all of the variables corresponding to the CSI. Therefore, the overall overhead of reporting CSI by the terminal can be reduced. For example: for some invalid or inefficient beams, delay paths or taps, the embodiment of the present application can reduce the information reporting of these beams, delay paths or taps, that is, reduce the number of beams, delay paths or taps, thereby reducing CSI Overhead to avoid redundant and invalid information reporting.
  • the target variable includes at least one of the following:
  • the first variable includes at least one of the following:
  • the second variable includes at least one of the following:
  • each item corresponds to a first quantity, and the first quantity corresponding to each item is not greater than the second quantity of the item indicated by the network side.
  • the first number of at least one of beams, beam pairs, orthogonal beam pairs, SD-FD pairs, antenna ports, CSI reference signal antenna ports, delay paths, and taps is not greater than that indicated by the network side corresponds to the second number, so that the overall overhead of reporting CSI by the terminal can be reduced.
  • the above CSI includes: non-zero coefficients, the number of the non-zero coefficients is determined based on the first number of the target variables.
  • the above-mentioned non-zero coefficient may be a non-zero coefficient selected according to the first quantity of the above-mentioned target variable.
  • This embodiment can achieve: the number of non-zero coefficients included in the CSI is determined based on the first number of target variables, and since the first number of target variables is determined according to channel conditions, this can achieve flexible reporting of non-zero coefficients according to channel conditions coefficient, thereby reducing the overall overhead of the terminal reporting CSI.
  • the number of non-zero coefficients included in the CSI is not greater than the number of non-zero coefficients indicated by the network side.
  • the selected number is not greater than the number indicated by the network side, for example, in some scenarios, the selected number is smaller than the number indicated by the network side, or in some scenarios, the selected number is equal to the number indicated by the network side quantity.
  • the CSI further includes location information of the non-zero coefficients.
  • the above position information may be represented by a bitmap (bitmap), and the length of the bitmap is determined based on the first quantity of the target variables.
  • bitmap bitmap
  • the aforementioned bitmap may be that the terminal determines the length of the non-zero coefficient bitmap corresponding to each layer (layer) according to the number of selected target variables. For example, the terminal determines the length of the non-zero coefficient bitmap corresponding to each layer according to the actually selected beams and the number of delay paths.
  • the number of non-zero coefficients included in the CSI may not be greater than the number of non-zero coefficients corresponding to the length of the bitmap.
  • the length of the bitmap is determined based on the first number of target variables, the length of the bitmap can be made not greater than the length of the bitmap determined for the second number indicated by the network side, and the length of the bitmap can be reduced in some scenarios, In order to further reduce the overall overhead of reporting CSI by the terminal.
  • the method also includes:
  • the non-zero coefficients are selected based on the quantization results.
  • the above quantization result generating operation may be an operation defined in the protocol to obtain a quantization result when a non-zero coefficient is selected.
  • the quantization result generating operation includes:
  • the terminal performs precoding matrix calculation, coefficient selection, coefficient compression and quantization according to the number of selected beams and the number of delay paths, so as to obtain the above quantization result.
  • the quantization result is also obtained according to the channel condition, so that the finally selected non-zero coefficients are also selected according to the channel condition, thereby improving the reporting of non-zero coefficients. flexibility, and can also reduce the overall overhead of reporting CSI by the terminal.
  • the CSI explicitly indicates the first quantity of the target variable
  • the first quantity of the target variable is implicitly indicated in the CSI.
  • the above-mentioned implicit indication of the first quantity of the target variable may be implicitly indicated through the number of combinations, or implicitly indicated through content such as the position of a non-zero coefficient, which is not limited.
  • the network side device can analyze the number of target variables actually selected by the terminal according to the reported CSI, thereby quickly analyzing the channel state information.
  • the above CSI includes a combination number corresponding to the first number of target variables, where the combination number is used to implicitly indicate the first number of target variables.
  • the above-mentioned number of combinations may be a calculation result of the first number of the above-mentioned target variables and the second number indicated by the network side.
  • the CSI overhead can be further reduced.
  • the terminal can report the position of the selected beam through the number of combinations, and only report the number of combinations corresponding to the first number actually selected, or report the position of the selected delay path through the number of combinations, or report the selected non-zero coefficient through the bitmap
  • the network side device allows the number reported by the terminal to be less than the number indicated by the network side, and the unreported coefficients can be treated as reserved values, such as 0.
  • the channel conditions include at least one of:
  • the multiple beams may be all beams or some beams
  • the multiple delay paths may be all delay paths or some delay paths.
  • the above-mentioned measurement information includes at least one of the following: power value and concentration.
  • Effective target effects can be selected through the above measurement information, such as selecting effective beams or delay paths, etc., so that for scenarios where the number of effective target variables is less than the second number indicated by the network side, the first number of target variables can be determined is less than the second number, and for a scenario where the number of effective target variables is equal to or greater than the second number indicated by the network side, it may be determined that the first number of target variables is equal to the second number.
  • the first number of target variables can be selected according to the actual measurement information, so as to effectively reduce the CSI overhead, for example: avoid reporting information about invalid or inefficient target variables, where the inefficiency can be a protocol Definition or network-side configuration inefficiency.
  • the terminal determines the first number of target variables according to channel conditions, wherein the first number is not greater than the second number of target variables indicated by the network side; the terminal reports CSI, and the CSI The corresponding quantity of the target variable is the first quantity. In this way, since the number of target variables is determined according to channel conditions, the flexibility of reporting CSI by the terminal can be improved.
  • FIG. 3 is a flowchart of a CSI receiving method provided in an embodiment of the present application. As shown in FIG. 3, the following steps are included:
  • Step 301 The network side device receives CSI, the number of target variables corresponding to the CSI is a first number, and the first number is not greater than the second number of target variables indicated by the network side.
  • the target variable includes at least one of the following:
  • the first variable includes at least one of the following:
  • the second variable includes at least one of the following:
  • the CSI includes: non-zero coefficients, the number of the non-zero coefficients is determined based on the first number of the target variables.
  • the number of non-zero coefficients included in the CSI is not greater than the number of non-zero coefficients indicated by the network side.
  • the CSI further includes location information of the non-zero coefficients.
  • the position information is represented by a bitmap, and the length of the bitmap is determined based on the first quantity of the target variable.
  • the CSI explicitly indicates the first quantity of the target variable
  • the first quantity of the target variable is implicitly indicated in the CSI.
  • the CSI includes a combination number corresponding to the first number of target variables, where the combination number is used to implicitly indicate the first number of target variables.
  • this embodiment is an implementation manner of network-side equipment corresponding to the embodiment shown in FIG. 2 , and its specific implementation manner can refer to the relevant description of the embodiment shown in FIG. 2 , in order to avoid repeated descriptions. This embodiment will not be described in detail.
  • the target variable including the beam is used as an example for illustration, and the details may be as follows:
  • the network side calculates the channel precoding matrix according to the uplink Sounding Reference Signal (SRS) channel, and precodes the Channel State Information Reference Signal (CSI-RS) before sending it to the terminal.
  • SRS uplink Sounding Reference Signal
  • CSI-RS Channel State Information Reference Signal
  • the network side configures the number of L through the high-level parameter beam number (numberOfBeams), or configures the combination of L, Mv , and ⁇ through the high-level parameter, wherein, L is the second number of beams indicated by the network side, and Mv is indicated by the network side
  • the second number of taps, ⁇ is a real number between 0 and 1.
  • the terminal After processing the received CSI-RS channel by methods such as Singular Value Decomposition (Singular Value Decomposition, SVD) or Discrete Fourier Transform (DFT), the terminal obtains several equivalent beams, and the terminal obtains several equivalent beams according to The channel condition selects L 0 effective beams among these beams, where L 0 ⁇ L.
  • Singular Value Decomposition SVD
  • DFT Discrete Fourier Transform
  • the terminal intercepts the channel corresponding to the L 0 effective beams to obtain the equivalent channel, calculates the precoding matrix of the N 3 subbands, and then converts the frequency domain coefficients to time domain to obtain coefficients in the time domain, where N 3 is the number of subbands.
  • the terminal selects the strongest M v coefficients in the time domain coefficients for coefficient compression. For L 0 beams, each beam reports M v coefficients. After quantizing all coefficients, the length is 2L 0 *M v or L 0 A bitmap of *N 3 indicates the location of non-zero coefficients.
  • the target variable including the tap is used as an example for illustration, and the details can be as follows:
  • the network side configures the reporting number M v of time-domain taps through high-level parameters or related parameters.
  • the terminal when the terminal reports the position of M 0 paths, the number of combinations that can be used is the result of calculation of N 3 and M 0 , or the result of calculation of 2M v and M 0 , and when N 3 is greater than 19, the terminal
  • the length of the reported window is twice the Mv indicated by the base station, that is, 2Mv .
  • the base station After receiving the CSI information fed back by the terminal, the base station determines the initial position of the window M initial according to the information i 1,5 in the CSI, and then determines the number of delay paths and the delay path selected by the terminal according to the information i 1,6 in the CSI diameter position. Then calculate the actual bitmap length, and obtain data at the corresponding position according to the bitmap length.
  • the target variables including port and delay path are used as an example for illustration, and the details can be as follows:
  • M v p v *N 3 /R
  • R represents the number of sub-band precoding matrix indicators (PMI subband) in each sub-band signal quality indicator (CQI subband)
  • the terminal receives the CSI-RS and performs channel estimation to obtain channel estimation results H1, H2...HN 3 of N 3 subbands.
  • the CSI-RS here may be unprecoded or precoded.
  • the terminal selects an appropriate orthogonal beam according to the received broadband channel. If the terminal finds that the number of appropriate orthogonal beams is smaller than L, it only selects the actual appropriate number L 0 .
  • the so-called appropriate beam refers to Projections of channels of the N 3 subbands on these beams are relatively large, and are greater than a threshold set by a terminal.
  • the terminal selects an appropriate port. For a part of the codebook, the terminal selects a continuous port with a length of L 0 . For another part of the codebook, the terminal selects an appropriate L 0 port. and quantity reporting.
  • the terminal After the selection of the orthogonal base, or the selection of the CSI-RS port, or the selection of the precoded CSI-RS port (that is, the space-frequency orthogonal base), the terminal calculates the equivalent The channel of each subband is projected onto the space-frequency orthogonal basis or the channel of each subband on the selected port.
  • the terminal selects the delay path according to the equivalent channel after port selection, that is, the channels of N 3 subbands are transformed by IDFT to obtain N 3 channels of delay paths, and the channel capacity of each channel is calculated, and the selected channel has a larger capacity M v delay paths, if the terminal finds that the channel capacity of M 0 ⁇ M v delay paths is relatively large, and the channel capacity corresponding to other delay paths is significantly reduced, the terminal only uses M0 delay paths.
  • the terminal reports the selected M 0 delay paths. If N 3 is greater than 19, select M 0 paths in the window of 2*M v and report the corresponding number of combinations. If N 3 is less than or equal to 19, then in N 3 Select M 0 delay paths and report the corresponding number of combinations.
  • the terminal calculates the coefficient of each port and each delay path, and performs quantization to obtain the final reported coefficient.
  • the number of coefficients, and the position and number of non-zero coefficients are fed back through the bitmap whose length is 2*L 0 *M 0 .
  • the network side receives the CSI information fed back by the terminal, first determines the length of the bitmap according to the analyzed L 0 and M 0 , and then analyzes the bitmap according to the corresponding length to determine the position and number of non-zero coefficients, thereby completing the precoding construction.
  • FIG. 4 is a structural diagram of a CSI reporting device provided in an embodiment of the present application. As shown in FIG. 4, it includes:
  • a determining module 401 configured to determine a first number of target variables according to channel conditions, where the first number is not greater than the second number of target variables indicated by the network side;
  • the reporting module 402 is configured to report CSI, where the quantity of the target variable corresponding to the CSI is the first quantity.
  • the target variable includes at least one of the following:
  • the first variable includes at least one of the following:
  • the second variable includes at least one of the following:
  • the CSI includes: non-zero coefficients, the number of the non-zero coefficients is determined based on the first number of the target variables.
  • the number of non-zero coefficients included in the CSI is not greater than the number of non-zero coefficients indicated by the network side.
  • the CSI further includes location information of the non-zero coefficients.
  • the position information is represented by a bitmap, and the length of the bitmap is determined based on the first quantity of the target variable.
  • the device also includes:
  • a generating module configured to select the first number of target variables among a plurality of first variables, and perform a quantization result generation operation based on the first number of target variables to obtain a quantization result
  • a selection module for selecting the non-zero coefficients based on the quantization result.
  • the quantization result generating operation includes:
  • the CSI explicitly indicates the first quantity of the target variable
  • the first quantity of the target variable is implicitly indicated in the CSI.
  • the CSI includes a combination number corresponding to the first number of target variables, where the combination number is used to implicitly indicate the first number of target variables.
  • the channel conditions include at least one of:
  • the metric information includes at least one of the following:
  • the CSI reporting device in the embodiment of the present application may be a device, a device with an operating system or an electronic device, or a component, an integrated circuit, or a chip in a terminal.
  • the apparatus or electronic equipment may be a mobile terminal or a non-mobile terminal.
  • the mobile terminal may include but not limited to the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machines or self-service machines, etc., are not specifically limited in this embodiment of the present application.
  • the signal detection device provided by the embodiment of the present application can realize each process realized by the method embodiment in FIG. 2 and achieve the same technical effect. To avoid repetition, details are not repeated here.
  • FIG. 5 is a structural diagram of a CSI receiving device provided in an embodiment of the present application. As shown in FIG. 5, it includes:
  • the receiving module 501 is configured to receive CSI, the number of target variables corresponding to the CSI is a first number, and the first number is not greater than the second number of target variables indicated by the network side.
  • the target variable includes at least one of the following:
  • the first variable includes at least one of the following:
  • the second variable includes at least one of the following:
  • the CSI includes: non-zero coefficients, the number of the non-zero coefficients is determined based on the first number of the target variables.
  • the number of non-zero coefficients included in the CSI is not greater than the number of non-zero coefficients indicated by the network side.
  • the CSI further includes location information of the non-zero coefficients.
  • the position information is represented by a bitmap, and the length of the bitmap is determined based on the first quantity of the target variable.
  • the CSI explicitly indicates the first quantity of the target variable
  • the first quantity of the target variable is implicitly indicated in the CSI.
  • the CSI includes a combination number corresponding to the first number of target variables, where the combination number is used to implicitly indicate the first number of target variables.
  • the CSI receiving device in the embodiment of the present application may be a device, a device with an operating system or an electronic device, or may be a component, an integrated circuit, or a chip in a network side device.
  • the apparatus or network side equipment may be a base station.
  • the signal detection device provided by the embodiment of the present application can realize each process realized by the method embodiment in FIG. 3 and achieve the same technical effect. To avoid repetition, details are not repeated here.
  • this embodiment of the present application further provides a communication device 600, including a processor 601, a memory 602, and programs or instructions stored in the memory 602 and operable on the processor 601,
  • a communication device 600 including a processor 601, a memory 602, and programs or instructions stored in the memory 602 and operable on the processor 601
  • the communication device 600 is a network-side device
  • the program or instruction is executed by the processor 601
  • each process of the above embodiment of the CSI receiving method on the network-side device side can be realized, and the same technical effect can be achieved.
  • the communication device 600 is a terminal
  • the communication device is a terminal or a network side device.
  • the embodiment of the present application also provides a communication device, including a processor and a communication interface, wherein the communication interface is used to: determine the first number of target variables according to the channel condition, wherein the first number is not greater than the network side The second quantity of the target variable indicated; the terminal reports CSI, and the quantity of the target variable corresponding to the CSI is the first quantity.
  • the communication interface is configured to: receive CSI, the number of target variables corresponding to the CSI is a first number, and the first number is not greater than the second number of target variables indicated by the network side.
  • This communication device embodiment corresponds to the method embodiment shown in the above-mentioned Figure 2 and Figure 3, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this communication device embodiment, and can achieve the same technology Effect.
  • FIG. 7 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.
  • the terminal 700 includes but is not limited to: a radio frequency unit 701, a network module 702, an audio output unit 703, an input unit 704, a sensor 705, a display unit 706, a user input unit 707, an interface unit 708, a memory 709, and a processor 710, etc. at least some of the components.
  • the terminal 700 may also include a power supply (such as a battery) for supplying power to various components, and the power supply may be logically connected to the processor 710 through the power management system, so as to manage charging, discharging, and power consumption through the power management system. Management and other functions.
  • a power supply such as a battery
  • the terminal structure shown in FIG. 2 does not constitute a limitation on the communication device.
  • the terminal may include more or less components than shown in the figure, or combine certain components, or arrange different components, which will not be repeated here.
  • the input unit 704 may include a graphics processor (Graphics Processing Unit, GPU) 7041 and a microphone 7042, and the graphics processor 7041 is used for the image capture device (such as the image data of the still picture or video obtained by the camera) for processing.
  • the display unit 706 may include a display panel 7061, and the display panel 7061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 707 includes a touch panel 7071 and other input devices 7072 .
  • the touch panel 7071 is also called a touch screen.
  • the touch panel 7071 may include two parts, a touch detection device and a touch controller.
  • Other input devices 7072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, and joysticks, which will not be repeated here.
  • the radio frequency unit 701 receives the downlink data from the network side device, and processes it to the processor 710; in addition, sends the uplink data to the network side device.
  • the radio frequency unit 701 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • the memory 709 can be used to store software programs or instructions as well as various data.
  • the memory 709 may mainly include a program or instruction storage area and a data storage area, wherein the program or instruction storage area may store an operating system, an application program or instructions required by at least one function (such as a sound playback function, an image playback function, etc.) and the like.
  • the memory 709 may include a high-speed random access memory, and may also include a nonvolatile memory, wherein the nonvolatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • PROM erasable programmable read-only memory
  • Erasable PROM Erasable PROM
  • EPROM electrically erasable programmable read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • flash memory for example at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.
  • the processor 710 may include one or more processing units; optionally, the processor 710 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface and application programs or instructions, etc., Modem processors mainly handle wireless communications, such as baseband processors. It can be understood that the foregoing modem processor may not be integrated into the processor 710 .
  • the radio frequency unit 701 or the processor 710 is configured to determine a first number of target variables according to channel conditions, where the first number is not greater than the second number of target variables indicated by the network side;
  • the radio frequency unit 701 reports CSI, where the number of target variables corresponding to the CSI is the first number.
  • the target variable includes at least one of the following:
  • the first variable includes at least one of the following:
  • the second variable includes at least one of the following:
  • the CSI includes: non-zero coefficients, the number of the non-zero coefficients is determined based on the first number of the target variables.
  • the number of non-zero coefficients included in the CSI is not greater than the number of non-zero coefficients indicated by the network side.
  • the CSI further includes location information of the non-zero coefficients.
  • the position information is represented by a bitmap, and the length of the bitmap is determined based on the first quantity of the target variable.
  • the radio frequency unit 701 or the processor 710 is also used to:
  • the non-zero coefficients are selected based on the quantization results.
  • the quantization result generating operation includes:
  • the CSI explicitly indicates the first quantity of the target variable
  • the first quantity of the target variable is implicitly indicated in the CSI.
  • the CSI includes a combination number corresponding to the first number of target variables, where the combination number is used to implicitly indicate the first number of target variables.
  • the channel conditions include at least one of:
  • the metric information includes at least one of the following:
  • the terminal in this embodiment of the present invention also includes: instructions or programs stored in the memory 709 and operable on the processor 710, and the processor 710 calls the instructions or programs in the memory 709 to execute the functions executed by the modules shown in FIG. method, and achieve the same technical effect, in order to avoid repetition, it is not repeated here.
  • the embodiment of the present application also provides a network side device.
  • the network side device 800 includes: an antenna 801 , a radio frequency device 802 , and a baseband device 803 .
  • the antenna 801 is connected to the radio frequency device 802 .
  • the radio frequency device 802 receives information through the antenna 801, and sends the received information to the baseband device 803 for processing.
  • the baseband device 803 processes the information to be sent and sends it to the radio frequency device 802
  • the radio frequency device 802 processes the received information and sends it out through the antenna 801 .
  • the foregoing frequency band processing device may be located in the baseband device 803 , and the method performed by the network side device in the above embodiments may be implemented in the baseband device 803 , and the baseband device 803 includes a processor 804 and a memory 805 .
  • the baseband device 803 may include at least one baseband board, for example, a plurality of chips are arranged on the baseband board, as shown in FIG.
  • the baseband device 803 may also include a network interface 806 for exchanging information with the radio frequency device 802, such as a common public radio interface (CPRI for short).
  • a network interface 806 for exchanging information with the radio frequency device 802, such as a common public radio interface (CPRI for short).
  • CPRI common public radio interface
  • the radio frequency device 802 is configured to receive CSI, where the number of target variables corresponding to the CSI is a first number, and the first number is not greater than the second number of target variables indicated by the network side.
  • the target variable includes at least one of the following:
  • the first variable includes at least one of the following:
  • the second variable includes at least one of the following:
  • the CSI includes: non-zero coefficients, the number of the non-zero coefficients is determined based on the first number of the target variables.
  • the number of non-zero coefficients included in the CSI is not greater than the number of non-zero coefficients indicated by the network side.
  • the CSI further includes location information of the non-zero coefficients.
  • the position information is represented by a bitmap, and the length of the bitmap is determined based on the first quantity of the target variable.
  • the CSI explicitly indicates the first quantity of the target variable
  • the first quantity of the target variable is implicitly indicated in the CSI.
  • the CSI includes groups corresponding to the first number of target variables
  • the network-side device in this embodiment of the present invention also includes: instructions or programs stored in the memory 805 and operable on the processor 804, and the processor 804 calls the instructions or programs in the memory 805 to execute the modules shown in FIG. 5 To avoid duplication, the method of implementation and to achieve the same technical effect will not be repeated here.
  • the embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by the processor, the steps of the CSI reporting method provided in the embodiment of the present application are implemented, Alternatively, when the program or instruction is executed by the processor, the steps of the method for receiving CSI at the terminal side provided by the embodiment of the present application are implemented.
  • the processor is the processor in the terminal described in the foregoing embodiments.
  • the readable storage medium includes computer readable storage medium, such as computer read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.
  • the embodiment of the present application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the above CSI reporting method or CSI receiving
  • the chip includes a processor and a communication interface
  • the communication interface is coupled to the processor
  • the processor is used to run programs or instructions to implement the above CSI reporting method or CSI receiving
  • the chip mentioned in the embodiment of the present application may also be called a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip.
  • the term “comprising”, “comprising” or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, It also includes other elements not expressly listed, or elements inherent in the process, method, article, or device. Without further limitations, an element defined by the phrase “comprising a " does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element.
  • the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions are performed, for example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
  • the methods of the above embodiments can be implemented by means of software plus a necessary general-purpose hardware platform, and of course also by hardware, but in many cases the former is better implementation.
  • the technical solution of the present application can be embodied in the form of computer software products, which are stored in a storage medium (such as ROM/RAM, magnetic disk, etc.) , CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present application.

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Abstract

本申请提供一种CSI上报方法、接收方法、装置、终端和网络侧设备。属于通信技术领域，本申请实施例的CSI上报方法包括：终端根据信道情况，确定目标变量的第一数量，其中，所述第一数量不大于网络侧指示的所述目标变量的第二数量；所述终端上报CSI，所述CSI对应的所述目标变量的数量为所述第一数量。

Description

CSI上报方法、接收方法、装置、终端和网络侧设备
相关申请的交叉引用
本申请主张在2021年8月9日在中国提交的中国专利申请No.202110909081.7的优先权，其全部内容通过引用包含于此。
技术领域
本申请属于通信技术领域，具体涉及一种信道状态信息(Channel State Information，CSI)上报方法、接收方法、装置、终端和网络侧设备。
背景技术
CSI可以用于信号发送终端优化信号的发送，使其发送的信号更加匹配信道的状态。目前对于CSI上报，网络侧在终端上报CSI之前，向终端上配置变量的数量，终端上报CSI对应的变量的数量为网络侧配置的数量。例如：网络侧配置波束的数量L，终端则上报L个波束对应的CSI。这样由于终端上报CSI对应的变量始终为网络侧配置的数量，导致终端上报CSI的灵活性差。
发明内容
本申请实施例提供一种CSI上报方法、接收方法、装置、终端和网络侧设备，以解决终端上报CSI的灵活性差的问题。
第一方面，提供了一种CSI上报方法，包括：
终端根据信道情况，确定目标变量的第一数量，其中，所述第一数量不大于网络侧指示的所述目标变量的第二数量；
所述终端上报CSI，所述CSI对应的所述目标变量的数量为所述第一数量。
第二方面，提供了一种CSI接收方法，包括：
网络侧设备接收CSI，所述CSI对应的目标变量的数量为第一数量，所述第一数量不大于网络侧指示的所述目标变量的第二数量。
第三方面，提供了一种CSI上报装置，包括：
确定模块，用于根据信道情况，确定目标变量的第一数量，其中，所述第一数量不大于网络侧指示的所述目标变量的第二数量；
上报模块，用于上报CSI，所述CSI对应的所述目标变量的数量为所述第一数量。
第四方面，提供了一种CSI接收装置，其中，包括：
接收模块，用于接收CSI，所述CSI对应的目标变量的数量为第一数量，所述第一数量不大于网络侧指示的所述目标变量的第二数量。
第五方面，提供了一种终端，包括处理器，存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现本申请实施例提供的CSI上报方法的步骤。
第六方面，提供了一种终端，包括处理器及通信接口，其中，所述通信接口用于：根据信道情况，确定目标变量的第一数量，其中，所述第一数量不大于网络侧指示的所述目标变量的第二数量；所述终端上报CSI，所述CSI对应的所述目标变量的数量为所述第一数量。
第七方面，提供了一种网络侧设备，包括处理器，存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令，所述程序或指令被所述处理器执行时实现本申请实施例提供的CSI接收方法的步骤。
第八方面，提供了一种网络侧设备，包括处理器及通信接口，其中，所述通信接口用于：接收CSI，所述CSI对应的目标变量的数量为第一数量，所述第一数量不大于网络侧指示的所述目标变量的第二数量。
第九方面，提供了一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被所述处理器执行时实现本申请实施例提供的CSI上报方法的步骤，或者，所述程序或指令被所述处理器执行时实现本申请实施例提供的CSI接收方法的步骤。
第十方面，提供了一种计算机程序产品，所述计算机程序产品被存储在非易失的存储介质中，所述计算机程序产品被至少一个处理器执行以实现本申请实施例提供的CSI上报方法的步骤，或者，所述计算机程序产品被至少一个处理器执行以实现本申请实施例提供的CSI接收方法的步骤。
本申请实施例中，终端根据信道情况，确定目标变量的第一数量，其中，所述第一数量不大于网络侧指示的所述目标变量的第二数量；所述终端上报CSI，所述CSI对应的所述目标变量的数量为所述第一数量。这样由于是根据信道情况确定目标变量的数量，从而提高终端上报CSI的灵活性。
附图说明
图1示出本申请实施例可应用的一种无线通信系统的框图；
图2是本申请实施例提供的一种CSI上报方法的流程图；
图3是本申请实施例提供的一种CSI接收方法的流程图；
图4是本申请实施例提供的一种CSI上报装置的结构图；
图5是本申请实施例提供的一种CSI接收装置的结构图；
图6是本申请实施例提供的通信设备的结构图；
图7是本申请实施例提供的一种终端的结构图；
图8是本申请实施例提供的一种网络侧设备的结构图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施，且“第一”、“第二”所区别的对象通常为一类，并不限定对象的个数，例如第一对象可以是一个，也可以是多个。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”一般表示前后关联对象是一种“或”的关系。
值得指出的是，本申请实施例所描述的技术不限于长期演进型(Long Term Evolution，LTE)/LTE的演进(LTE-Advanced，LTE-A)系统，还可用 于其他无线通信系统，诸如码分多址(Code Division Multiple Access，CDMA)、时分多址(Time Division Multiple Access，TDMA)、频分多址(Frequency Division Multiple Access，FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access，OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access，SC-FDMA)和其他系统。本申请实施例中的术语“系统”和“网络”常被可互换地使用，所描述的技术既可用于以上提及的系统和无线电技术，也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(New Radio，NR)系统，并且在以下大部分描述中使用NR术语，这些技术也可应用于NR系统应用以外的应用，如第6代(6th Generation，6G)通信系统。
图1示出本申请实施例可应用的一种无线通信系统的框图。无线通信系统包括终端11和网络侧设备12。
其中，终端11也可以称作终端设备或者用户终端(User Equipment，UE)，终端11可以是终端11可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant，PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer，UMPC)、移动上网装置(Mobile Internet Device，MID)、增强现实(augmented reality，AR)/虚拟现实(virtual reality，VR)设备、机器人、可穿戴式设备(Wearable Device)、车载设备(Vehicle User Equipment，VUE)、行人终端(Pedestrian User Equipment，PUE)、智能家居(具有无线通信功能的家居设备，如冰箱、电视、洗衣机或者家具等)等终端侧设备，可穿戴式设备包括：智能手表、智能手环、智能耳机、智能眼镜、智能首饰(智能手镯、智能手链、智能戒指、智能项链、智能脚镯、智能脚链等)、智能腕带、智能服装、游戏机等。需要说明的是，在本申请实施例并不限定终端11的具体类型。
网络侧设备12可以是核心网网元或者基站，其中，核心网网元可以是接入和移动管理功能(Access and Mobility Management Function，AMF)、移动管理实体(Mobility Management Entity，MME)等。上述基站可被称为节点B、演进节点B、接入点、基收发机站(Base Transceiver Station，BTS)、无 线电基站、无线电收发机、基本服务集(Basic Service Set，BSS)、扩展服务集(Extended Service Set，ESS)、B节点、演进型B节点(eNB)、家用B节点、家用演进型B节点、无线局域网(Wireless Local Area Networks，WLAN)接入点、无线保真(Wireless Fidelity，WiFi)节点、发送接收点(Transmitting Receiving Point，TRP)或所述领域中其他某个合适的术语，只要达到相同的技术效果，所述基站不限于特定技术词汇，需要说明的是，在本申请实施例中仅以NR系统中的基站为例，但是并不限定基站的具体类型。
下面结合附图，通过一些实施例及其应用场景对本申请实施例提供的一种消息处理方法、装置、设备和存储介质进行详细地说明。
请参见图2，图2是本申请实施例提供的一种CSI上报方法的流程图，如图2所示，包括以下步骤：
步骤201、终端根据信道情况，确定目标变量的第一数量，其中，所述第一数量不大于网络侧指示的所述目标变量的第二数量。
其中，上述目标变量可以是与CSI上报相关的一个或者多个变量，例如：波束、时延径、抽头等，具体请参见下面详细说明。
当上述目标变量为多个变量，不同变量的第一数量可以不同，但不大于网络侧指示的数量。
上述网络侧指示的目标变量的第二数量可以是网络侧通过高层参数配置的，且可以动态或者预先配置的，对此本公开不作限定。
例如：网络侧指示波束这个变量的数量为L，则步骤201可以根据信道情况，确定波束的第一数量为L 0，其中，L 0不大于L；又例如：网络侧指示抽头这个变量的数量为M v，则步骤201可以根据信道情况，确定抽头的第一数量为M 0，其中，M 0不大于M v。
上述信道情况包括可以是实际信道情况，例如：波束、时延径的度量信息。
上述第一数量不大于网络侧指示的所述目标变量的第二数量可以理解为，在一些信道情况下，第一数量可以小于网络侧指示的目标变量的第二数量，在另一些信道情况下，第一数量可以等于网络侧指示的目标变量的第二数量。
步骤S201可以理解为，根据信道情况，确定第一数量的目标变量。例如： 步骤S201包括：根据信道情况，确定L 0个波束，其中，网络侧指示L个波束，L 0不大于L；根据信道情况，确定M 0个抽头，其中，网络侧指示M v个抽头，M 0不大于M v。
步骤202、所述终端上报CSI，所述CSI对应的所述目标变量的数量为所述第一数量。
上述CSI对应的所述目标变量的数量为所述第一数量可以是，按照上述目标变量的第一数量上报CSI，即基于第一数量的目标变量生成CSI并上报。
本申请实施例中，通过上述步骤可以实现：CSI对应的目标变量的数量为上述第一数量，而不是直接上报网络侧指示(或者称作配置)的数量对应的CSI，从而可以提高终端上报CSI的灵活性，即根据信道情况灵活上报CSI。
另外，由于上报的CSI对应的目标变量的数量为第一数量，这样相比终端上报CSI对应的变量始终为网络侧指示的数量，本申请实施例可以减少部分或者全部CSI对应的变量的数量，从而可以降低终端上报CSI的整体开销。例如：对于一些无效或低效的波束、时延径或者抽头，本申请实施例可以减少这些波束、时延径或者抽头的信息上报，即减少波束、时延径或者抽头的数量，从而降低CSI开销，避免冗余无效的信息上报。
作为一种可选的实施方式，所述目标变量包括如下至少一项：
第一变量和第二变量；
所述第一变量包括如下至少一项：
波束(beam)、波束对(beam pair)、正交波束对、空频正交基(spatial domain frequency domain pair，SD-FD pair)、天线端口、CSI参考信号天线端口(CSI-RS port)；
所述第二变量包括如下至少一项：
时延径和抽头。
其中，在上述目标变量包括波束、波束对、正交波束对、SD-FD pair、天线端口、CSI参考信号天线端口、时延径和抽头中的多项时，每一项都对应一个第一数量，且每项对应的第一数量不大于网络侧指示的该项的第二数量。
该实施方式中，可以实现波束、波束对、正交波束对、SD-FD pair、天线端口、CSI参考信号天线端口、时延径和抽头中的至少一项的第一数量不大 于网络侧指示的对应第二数量，从而可以降低终端上报CSI的整体开销。
作为一种可选的实施方式，上述CSI包括：非零系数，所述非零系数的数量基于所述目标变量的第一数量确定。
其中，上述非零系数可以是依据上述目标变量的第一数量选择的非零系数。
该实施方式可以实现：CSI包括的非零系数的数量是基于目标变量的第一数量确定的，而由于目标变量的第一数量是根据信道情况确定的，这样可以实现根据信道情况灵活上报非零系数，从而降低终端上报CSI的整体开销。
可选的，所述CSI包括的所述非零系数的数量不大于网络侧指示的非零系数数量。
该实施方式中，可以是在选择非零系数时，选择的数量不大于网络侧指示的数量，如在一些场景中选择数量小于网络侧指示的数量，或者在一些场景中选择数量等于网络侧指示的数量。
该实施方式中，可以实现根据信道情况灵活上报非零系数的数量，从而降低终端上报CSI的整体开销。
可选的，所述CSI还包括所述非零系数的位置信息。
其中，上述位置信息可以通过位图(bitmap)表示，所述bitmap的长度基于所述目标变量的第一数量确定。
上述bitmap可以是终端根据选择的目标变量的数量，确定每层(layer)对应的非零系数bitmap的长度。例如：终端根据实际选择的波束和时延径的数量，确定每个layer对应的非零系数bitmap的长度。
另外，上述CSI包括的非零系数的数量可以不大于上述bitmap长度对应的非零系数的数量。
该实施方式中，由于bitmap的长度基于目标变量的第一数量确定，从而可以使得bitmap的长度不大于是针对网络侧指示的第二数量确定的bitmap长度，可以实现在一些场景中降低bitmap长度，以进一步降低终端上报CSI的整体开销。
作为一种可选的实施方式，所述方法还包括：
在多个第一变量中选择所述第一数量的目标变量，并基于所述第一数量 的目标变量执行量化结果生成操作，得到量化结果；
基于所述量化结果选择所述非零系数。
其中，上述量化结果生成操作可以是协议中定义的在选择非零系数时获得量化结果的操作。例如：所述量化结果生成操作包括：
预编码矩阵计算、系数选择、系数压缩和量化。
如终端根据选择的波束的数量和时延径的数量进行预编码矩阵计算、系数选择、系数压缩和量化，以得到上述量化结果。
该实施方式中，由于上述第一数量是根据信道情况选择的，这样可以实现量化结果也是根据信道情况获取的，从而使得最终选择的非零系数也是根据信道情况选择的，从而提高非零系数上报的灵活性，且还可以降低终端上报CSI的整体开销。
作为一种可选的实施方式，所述CSI中显式指示所述目标变量的第一数量；或者
所述CSI中隐式指示所述目标变量的第一数量。
其中，上述隐式指示所述目标变量的第一数量可以是，通过组合数隐式指示，或者通过非零系数的位置等内容隐式指示，对此不作限定。
该实施方式中，由于显式或者隐式指示目标变量的第一数量，从而网络侧设备根据上报的CSI，可以解析终端实际选择的目标变量数目，从而快速地解析出信道状态信息。
可选的，上述CSI中包括所述目标变量的第一数量对应的组合数，所述组合数用于隐式指示所述目标变量的第一数量。
其中，上述组合数可以是上述目标变量的第一数量和网络侧指示的第二数量计算的结果。
该实施方式中，由于通过目标变量的第一数量对应的组合数隐式指示目标变量的第一数量，从而可以进一步降低CSI开销。
例如：终端可以通过组合数方式上报选择的波束的位置，只上报实际选择的第一数量对应的组合数，或者通过组合数上报选择的时延径的位置，或者通过bitmap上报选择的非零系数的位置，网络侧设备允许终端上报的数量少于网络侧指示的数量，没有上报的系数可以按照保留值处理，如0。
作为一种可选的实施方式，所述信道情况包括至少一项：
多个波束的度量信息；
多个时延径的度量信息。
其中，上述多个波束可以是所有波束或者部分波束，上述多个时延径可以是所有时延径或者部分时延径。
其中，上述度量信息包括如下至少一项：功率值和集中度。
通过上述度量信息可以选择有效的目标效果，如选择有效的波束或者时延径等，这样对于有效的目标变量的数量小于网络侧指示的第二数量的场景，则可以确定目标变量的第一数量小于第二数量，而对于有效的目标变量的数量等于或者大于网络侧指示的第二数量的场景，则可以确定目标变量的第一数量等于第二数量。
该实施方式中，可以实现根据实际的度量信息选择目标变量的第一数量，从而有利用降低CSI开销，例如：避免上报无效或低效的目标变量的相关信息，其中，这里低效可以是协议定义或者网络侧配置的低效。
本申请实施例中，终端根据信道情况，确定目标变量的第一数量，其中，所述第一数量不大于网络侧指示的所述目标变量的第二数量；所述终端上报CSI，所述CSI对应的所述目标变量的数量为所述第一数量。这样由于是根据信道情况确定目标变量的数量，从而可以提高终端上报CSI的灵活性。
请参见图3，图3是本申请实施例提供的一种CSI接收方法的流程图，如图3所示，包括以下步骤：
步骤301、网络侧设备接收CSI，所述CSI对应的目标变量的数量为第一数量，所述第一数量不大于网络侧指示的所述目标变量的第二数量。
可选的，所述目标变量包括如下至少一项：
第一变量和第二变量；
所述第一变量包括如下至少一项：
波束、波束对、正交波束对、空频正交基SD-FD pair、天线端口、CSI参考信号天线端口；
所述第二变量包括如下至少一项：
时延径和抽头。
可选的，所述CSI包括：非零系数，所述非零系数的数量基于所述目标变量的第一数量确定。
可选的，所述CSI包括的所述非零系数的数量不大于网络侧指示的非零系数数量。
可选的，所述CSI还包括所述非零系数的位置信息。
可选的，所述位置信息通过位图bitmap表示，所述bitmap的长度基于所述目标变量的第一数量确定。
可选的，所述CSI中显式指示所述目标变量的第一数量；或者
所述CSI中隐式指示所述目标变量的第一数量。
可选的，所述CSI中包括所述目标变量的第一数量对应的组合数，所述组合数用于隐式指示所述目标变量的第一数量。
需要说明的是，本实施例作为与图2所示的实施例中对应的网络侧设备的实施方式，其具体的实施方式可以参见图2所示的实施例的相关说明，以为避免重复说明，本实施例不再赘述。
下面通过三个实施例对本申请实施例提供的方法进行举例说明：
实施例一
本实施例中以目标变量包括波束进行举例说明，具体可以如下：
网络侧根据上行探测参考信号(Sounding Reference Signal，SRS)信道计算信道预编码矩阵，并对信道状态信息参考信号(Channel State Information Reference Signal，CSI-RS)进行预编码后发送给终端。
网络侧通过高层参数波束数量(numberOfBeams)配置L的个数，或者通过高层参数配置L，M v，β的组合，其中，L为网络侧指示的波束的第二数量，M v为网络侧指示的抽头的第二数量，β为0至1中的一实数。
终端在对接收到的CSI-RS信道进行奇异值分解(Singular Value Decomposition，SVD)或者离散傅里叶变换(Discrete Fourier Transform，DFT)等方法的处理之后，得到若干个等效的波束，终端根据信道情况在这些波束中选择L 0个有效的波束，其中L 0<L。
终端截取这L 0个有效的波束对应的信道得到等效信道，计算N 3个子带的预编码矩阵，然后将频域系数经过离散傅里叶逆变换(Inverse Discrete  Fourier Transform，IDFT)转换到时域，得到时域的系数，其中，N 3为子带数量。
终端在时域系数中选择最强的M v个进行系数压缩，对于L 0个波束，每个波束上报M v个系数，对所有系数进行量化后，通过长度为2L 0*M v或者L 0*N 3的bitmap指示非零系数的位置。
实施例二
本实施例中以目标变量包括抽头进行举例说明，具体可以如下：
网络侧通过高层参数或者相关参数配置了时域抽头的上报个数M v。
终端根据接收到的CSI-RS信道，进行端口选择之后，得到频域的CSI系数，经过IDFT转换到时域之后，发现时域功率都集中在M 0个径上，且M 0<M v，则终端只在N 3个抽头中选择M 0个抽头进行上报，然后根据量化后的系数，选择K0＝β*2*L*M 0个非零系数进行上报，通过长度为2*L*M 0的bitmap指示K0个非零系数的位置。
对应于一些码本，终端上报M 0个径的位置时，可以采用的组合数为N 3和M 0计算的结果，或者是2M v和M 0计算的结果，且N 3大于19时，终端上报的窗的长度是按照基站指示的M v的两倍，即2M v。
基站接收到终端反馈的CSI信息后，根据CSI中的信息i 1,5确定窗的起始位置M initial，然后根据CSI中的信息i 1,6确定终端选择的时延径个数以及时延径的位置。然后计算得到实际的bitmap长度，根据bitmap长度在对应的位置获取数据。
实施例三：
本实施例中以目标变量包括端口和时延径进行举例说明，具体可以如下：
终端根据网络侧设备配置的高层参数paramCombination，确定网络侧配置(L,p v,β)，从而确定波束的上报个数2*L，计算每个layer时延径上报个数M v，其中，M v＝p v*N 3/R，R表示是每个子带信号质量标识(CQI subband)中子带预编码矩阵指示(PMI subband)的个数，计算每个layer非零系数个数K0＝2*L*M v，以及总的非零系数上报个数2*K0。
终端接收CSI-RS，并进行信道估计，得到N 3个子带的信道估计结果H1，H2…HN 3。这里的CSI-RS可以是没有经过预编码的，也可以是经过预编码 的。
对于一些码本，终端根据接收到的宽带的信道选择合适的正交波束，如果终端发现合适的正交波束的数量比L小，则只选择实际合适的数量L 0，所谓合适的波束是指N 3个子带的信道在这些波束上的投影相对比较大，大于一个终端设定的阈值。
对于另一些码本，则终端选择合适的端口，对于一部分码本，终端选择长度为L 0的连续端口，对于另一部分码本，终端选择合适的L 0个端口，通过组合数将端口的位置和数量上报。
在正交基选择之后，或者CSI-RS端口选择之后，或者经过预编码的CSI-RS端口(即空频正交基)选择之后，终端根据选择的空频正交基或端口计算得到等效的信道，每个子带投影到空频正交基上的结果或者每个子带在选择的端口上的信道。
终端根据端口选择之后的等效信道进行时延径的选择，即将N 3个子带的信道通过IDFT变换，得到N 3个时延径的信道，计算每个信道的信道容量，选择信道容量较大的M v个时延径，如果终端发现有M 0<M v个时延径的信道容量比较大，其他的时延径对应的信道容量明显减少，则终端只使用M0个时延径。
终端上报选择的M 0个时延径，如果N 3大于19，则在2*M v的窗中选择M 0个径，上报对应的组合数，如果N 3小于等于19，则在N 3中选择M 0个时延径，上报对应的组合数。
终端计算每个端口，每个时延径的系数，并进行量化，得到最终上报的系数。
终端根据基站指示的2K0确定所有layer的非零系数的总个数不超过2K0，每个layer上报，终端计算K1＝2*L 0*M 0*β，得到每层需要上报的最大的非零系数个数，并通过长度为2*L 0*M 0的bitmap反馈非零系数的位置及数量。
网络侧接收到终端反馈的CSI信息，根据解析出来的L 0和M 0先确定bitmap的长度，然后按照对应的长度解析bitmap，确定非零系数的位置和个数，从而完成预编码构造。
请参见图4，图4是本申请实施例提供的一种CSI上报装置的结构图， 如图4所示，包括：
确定模块401，用于根据信道情况，确定目标变量的第一数量，其中，所述第一数量不大于网络侧指示的所述目标变量的第二数量；
上报模块402，用于上报CSI，所述CSI对应的所述目标变量的数量为所述第一数量。
可选的，所述目标变量包括如下至少一项：
第一变量和第二变量；
所述第一变量包括如下至少一项：
波束、波束对、正交波束对、空频正交基SD-FD pair、天线端口、CSI参考信号天线端口；
所述第二变量包括如下至少一项：
时延径和抽头。
可选的，所述CSI包括：非零系数，所述非零系数的数量基于所述目标变量的第一数量确定。
可选的，所述CSI包括的所述非零系数的数量不大于网络侧指示的非零系数数量。
可选的，所述CSI还包括所述非零系数的位置信息。
可选的，所述位置信息通过位图bitmap表示，所述bitmap的长度基于所述目标变量的第一数量确定。
可选的，所述装置还包括：
生成模块，用于在多个第一变量中选择所述第一数量的目标变量，并基于所述第一数量的目标变量执行量化结果生成操作，得到量化结果；
选择模块，用于基于所述量化结果选择所述非零系数。
可选的，所述量化结果生成操作包括：
预编码矩阵计算、系数选择、系数压缩和量化。
可选的，所述CSI中显式指示所述目标变量的第一数量；或者
所述CSI中隐式指示所述目标变量的第一数量。
可选的，所述CSI中包括所述目标变量的第一数量对应的组合数，所述组合数用于隐式指示所述目标变量的第一数量。
可选的，所述信道情况包括至少一项：
多个波束的度量信息；
多个时延径的度量信息。
可选的，所述度量信息包括如下至少一项：
功率值和集中度。
本申请实施例中的CSI上报装置可以是装置，具有操作系统的装置或电子设备，也可以是终端中的部件、集成电路、或芯片。该装置或电子设备可以是移动终端，也可以为非移动终端。示例性的，移动终端可以包括但不限于上述所列举的终端11的类型，非移动终端可以为服务器、网络附属存储器(Network Attached Storage，NAS)、个人计算机(personal computer，PC)、电视机(television，TV)、柜员机或者自助机等，本申请实施例不作具体限定。
本申请实施例提供的信号检测装置能够实现图2的方法实施例实现的各个过程，并达到相同的技术效果，为避免重复，这里不再赘述。
请参见图5，图5是本申请实施例提供的一种CSI接收装置的结构图，如图5所示，包括：
接收模块501，用于接收CSI，所述CSI对应的目标变量的数量为第一数量，所述第一数量不大于网络侧指示的所述目标变量的第二数量。
可选的，所述目标变量包括如下至少一项：
第一变量和第二变量；
所述第一变量包括如下至少一项：
波束、波束对、正交波束对、空频正交基SD-FD pair、天线端口、CSI参考信号天线端口；
所述第二变量包括如下至少一项：
时延径和抽头。
可选的，所述CSI包括：非零系数，所述非零系数的数量基于所述目标变量的第一数量确定。
可选的，所述CSI包括的所述非零系数的数量不大于网络侧指示的非零系数数量。
可选的，所述CSI还包括所述非零系数的位置信息。
可选的，所述位置信息通过位图bitmap表示，所述bitmap的长度基于所述目标变量的第一数量确定。
可选的，所述CSI中显式指示所述目标变量的第一数量；或者
所述CSI中隐式指示所述目标变量的第一数量。
可选的，所述CSI中包括所述目标变量的第一数量对应的组合数，所述组合数用于隐式指示所述目标变量的第一数量。
本申请实施例中的CSI接收装置可以是装置，具有操作系统的装置或电子设备，也可以是网络侧设备中的部件、集成电路、或芯片。该装置或网络侧设备可以是基站。
本申请实施例提供的信号检测装置能够实现图3的方法实施例实现的各个过程，并达到相同的技术效果，为避免重复，这里不再赘述。
可选的，如图6所示，本申请实施例还提供一种通信设备600，包括处理器601，存储器602，存储在存储器602上并可在所述处理器601上运行的程序或指令，例如，该通信设备600为网络侧设备时，该程序或指令被处理器601执行时实现上述网络侧设备侧的CSI接收方法实施例的各个过程，且能达到相同的技术效果。该通信设备600为终端时，该程序或指令被处理器601执行时实现上述终端侧的CSI上报方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。该通信设备为终端或者网络侧设备。
本申请实施例还提供一种通信设备，包括处理器和通信接口，其中，所述通信接口用于：根据信道情况，确定目标变量的第一数量，其中，所述第一数量不大于网络侧指示的所述目标变量的第二数量；所述终端上报CSI，所述CSI对应的所述目标变量的数量为所述第一数量。
或者，所述通信接口用于：接收CSI，所述CSI对应的目标变量的数量为第一数量，所述第一数量不大于网络侧指示的所述目标变量的第二数量。
该通信设备实施例是与上述图2和图3所示的方法实施例对应的，上述方法实施例的各个实施过程和实现方式均可适用于该通信设备实施例中，且能达到相同的技术效果。
具体地，图7为实现本申请实施例的一种终端的硬件结构示意图。
该终端700包括但不限于：射频单元701、网络模块702、音频输出单元703、输入单元704、传感器705、显示单元706、用户输入单元707、接口单元708、存储器709、以及处理器710等中的至少部分部件。
本领域技术人员可以理解，终端700还可以包括给各个部件供电的电源(比如电池)，电源可以通过电源管理系统与处理器710逻辑相连，从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图2中示出的终端结构并不构成对通信设备的限定，终端可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置，在此不再赘述。
应理解的是，本申请实施例中，输入单元704可以包括图形处理器(Graphics Processing Unit，GPU)7041和麦克风7042，图形处理器7041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元706可包括显示面板7061，可以采用液晶显示器、有机发光二极管等形式来配置显示面板7061。用户输入单元707包括触控面板7071以及其他输入设备7072。触控面板7071，也称为触摸屏。触控面板7071可包括触摸检测装置和触摸控制器两个部分。其他输入设备7072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。
本申请实施例中，射频单元701将来自网络侧设备的下行数据接收后，给处理器710处理；另外，将上行的数据发送给网络侧设备。通常，射频单元701包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器709可用于存储软件程序或指令以及各种数据。存储器709可主要包括存储程序或指令区和存储数据区，其中，存储程序或指令区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外，存储器709可以包括高速随机存取存储器，还可以包括非易失性存储器，其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器 (Electrically EPROM，EEPROM)或闪存。例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。
处理器710可包括一个或多个处理单元；可选的，处理器710可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统、用户界面和应用程序或指令等，调制解调处理器主要处理无线通信，如基带处理器。可以理解的是，上述调制解调处理器也可以不集成到处理器710中。
其中，射频单元701或者处理器710，用于根据信道情况，确定目标变量的第一数量，其中，所述第一数量不大于网络侧指示的所述目标变量的第二数量；
射频单元701上报CSI，所述CSI对应的所述目标变量的数量为所述第一数量。
可选的，所述目标变量包括如下至少一项：
第一变量和第二变量；
所述第一变量包括如下至少一项：
波束、波束对、正交波束对、空频正交基SD-FD pair、天线端口、CSI参考信号天线端口；
所述第二变量包括如下至少一项：
时延径和抽头。
可选的，所述CSI包括：非零系数，所述非零系数的数量基于所述目标变量的第一数量确定。
可选的，所述CSI包括的所述非零系数的数量不大于网络侧指示的非零系数数量。
可选的，所述CSI还包括所述非零系数的位置信息。
可选的，所述位置信息通过位图bitmap表示，所述bitmap的长度基于所述目标变量的第一数量确定。
可选的，射频单元701或者处理器710还用于：
在多个第一变量中选择所述第一数量的目标变量，并基于所述第一数量的目标变量执行量化结果生成操作，得到量化结果；
基于所述量化结果选择所述非零系数。
可选的，所述量化结果生成操作包括：
预编码矩阵计算、系数选择、系数压缩和量化。
可选的，所述CSI中显式指示所述目标变量的第一数量；或者
所述CSI中隐式指示所述目标变量的第一数量。
可选的，所述CSI中包括所述目标变量的第一数量对应的组合数，所述组合数用于隐式指示所述目标变量的第一数量。
可选的，所述信道情况包括至少一项：
多个波束的度量信息；
多个时延径的度量信息。
可选的，所述度量信息包括如下至少一项：
功率值和集中度。
具体地，本发明实施例的终端还包括：存储在存储器709上并可在处理器710上运行的指令或程序，处理器710调用存储器709中的指令或程序执行图4所示各模块执行的方法，并达到相同的技术效果，为避免重复，故不在此赘述。
具体地，本申请实施例还提供了一种网络侧设备。如图8所示，该网络侧设备800包括：天线801、射频装置802、基带装置803。天线801与射频装置802连接。在上行方向上，射频装置802通过天线801接收信息，将接收的信息发送给基带装置803进行处理。在下行方向上，基带装置803对要发送的信息进行处理，并发送给射频装置802，射频装置802对收到的信息进行处理后经过天线801发送出去。
上述频带处理装置可以位于基带装置803中，以上实施例中网络侧设备执行的方法可以在基带装置803中实现，该基带装置803包括处理器804和存储器805。
基带装置803例如可以包括至少一个基带板，该基带板上设置有多个芯片，如图8所示，其中一个芯片例如为处理器804，与存储器805连接，以调用存储器805中的程序，执行以上方法实施例中所示的网络设备操作。
该基带装置803还可以包括网络接口806，用于与射频装置802交互信息，该接口例如为通用公共无线接口(common public radio interface，简称 CPRI)。
射频装置802，用于接收CSI，所述CSI对应的目标变量的数量为第一数量，所述第一数量不大于网络侧指示的所述目标变量的第二数量。
可选的，所述目标变量包括如下至少一项：
第一变量和第二变量；
所述第一变量包括如下至少一项：
波束、波束对、正交波束对、空频正交基SD-FD pair、天线端口、CSI参考信号天线端口；
所述第二变量包括如下至少一项：
时延径和抽头。
可选的，所述CSI包括：非零系数，所述非零系数的数量基于所述目标变量的第一数量确定。
可选的，所述CSI包括的所述非零系数的数量不大于网络侧指示的非零系数数量。
可选的，所述CSI还包括所述非零系数的位置信息。
可选的，所述位置信息通过位图bitmap表示，所述bitmap的长度基于所述目标变量的第一数量确定。
可选的，所述CSI中显式指示所述目标变量的第一数量；或者
所述CSI中隐式指示所述目标变量的第一数量。
可选的，所述CSI中包括所述目标变量的第一数量对应的组
具体地，本发明实施例的网络侧设备还包括：存储在存储器805上并可在处理器804上运行的指令或程序，处理器804调用存储器805中的指令或程序执行图5所示各模块执行的方法，并达到相同的技术效果，为避免重复，故不在此赘述。
本申请实施例还提供一种可读存储介质，所述可读存储介质上存储程序或指令，所述程序或指令被所述处理器执行时实现本申请实施例提供的CSI上报方法的步骤，或者，所述程序或指令被所述处理器执行时实现本申请实施例提供的终端侧的CSI接收方法的步骤。
其中，所述处理器为上述实施例中所述的终端中的处理器。所述可读存 储介质，包括计算机可读存储介质，如计算机只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等。
本申请实施例另提供了一种芯片，所述芯片包括处理器和通信接口，所述通信接口和所述处理器耦合，所述处理器用于运行程序或指令，实现上述CSI上报方法或者CSI接收方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
应理解，本申请实施例提到的芯片还可以称为系统级芯片，系统芯片，芯片系统或片上系统芯片等。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外，需要指出的是，本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能，还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能，例如，可以按不同于所描述的次序来执行所描述的方法，并且还可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被组合。
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上述实施例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，本申请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计算机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(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求 所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (27)

  1. 一种信道状态信息CSI上报方法，包括：
    终端根据信道情况，确定目标变量的第一数量，其中，所述第一数量不大于网络侧指示的所述目标变量的第二数量；
    所述终端上报CSI，所述CSI对应的所述目标变量的数量为所述第一数量。
  2. 如权利要求1所述的方法，其中，所述目标变量包括如下至少一项：
    第一变量和第二变量；
    所述第一变量包括如下至少一项：
    波束、波束对、正交波束对、空频正交基SD-FD pair、天线端口、CSI参考信号天线端口；
    所述第二变量包括如下至少一项：
    时延径和抽头。
  3. 如权利要求1所述的方法，其中，所述CSI包括：非零系数，所述非零系数的数量基于所述目标变量的第一数量确定。
  4. 如权利要求3所述的方法，其中，所述CSI包括的所述非零系数的数量不大于网络侧指示的非零系数数量。
  5. 如权利要求3所述的方法，其中，所述CSI还包括所述非零系数的位置信息。
  6. 如权利要求5所述的方法，其中，所述位置信息通过位图bitmap表示，所述bitmap的长度基于所述目标变量的第一数量确定。
  7. 如权利要求3所述的方法，其中，所述方法还包括：
    在多个第一变量中选择所述第一数量的目标变量，并基于所述第一数量的目标变量执行量化结果生成操作，得到量化结果；
    基于所述量化结果选择所述非零系数。
  8. 如权利要求7所述的方法，其中，所述量化结果生成操作包括：
    预编码矩阵计算、系数选择、系数压缩和量化。
  9. 如权利要求1所述的方法，其中，所述CSI中显式指示所述目标变量 的第一数量；或者
    所述CSI中隐式指示所述目标变量的第一数量。
  10. 如权利要求9所述的方法，其中，所述CSI中包括所述目标变量的第一数量对应的组合数，所述组合数用于隐式指示所述目标变量的第一数量。
  11. 如权利要求1所述的方法，其中，所述信道情况包括至少一项：
    多个波束的度量信息；
    多个时延径的度量信息。
  12. 如权利要求11所述的方法，其中，所述度量信息包括如下至少一项：
    功率值和集中度。
  13. 一种信道状态信息CSI接收方法，包括：
    网络侧设备接收CSI，所述CSI对应的目标变量的数量为第一数量，所述第一数量不大于网络侧指示的所述目标变量的第二数量。
  14. 如权利要求13所述的方法，其中，所述目标变量包括如下至少一项：
    第一变量和第二变量；
    所述第一变量包括如下至少一项：
    波束、波束对、正交波束对、空频正交基SD-FD pair、天线端口、CSI参考信号天线端口；
    所述第二变量包括如下至少一项：
    时延径和抽头。
  15. 如权利要求13所述的方法，其中，所述CSI包括：非零系数，所述非零系数的数量基于所述目标变量的第一数量确定。
  16. 如权利要求15所述的方法，其中，所述CSI包括的所述非零系数的数量不大于网络侧指示的非零系数数量。
  17. 如权利要求15所述的方法，其中，所述CSI还包括所述非零系数的位置信息。
  18. 如权利要求17所述的方法，其中，所述位置信息通过位图bitmap表示，所述bitmap的长度基于所述目标变量的第一数量确定。
  19. 如权利要求13所述的方法，其中，所述CSI中显式指示所述目标变量的第一数量；或者
    所述CSI中隐式指示所述目标变量的第一数量。
  20. 如权利要求19所述的方法，其中，所述CSI中包括所述目标变量的第一数量对应的组合数，所述组合数用于隐式指示所述目标变量的第一数量。
  21. 一种信道状态信息CSI上报装置，包括：
    确定模块，用于根据信道情况，确定目标变量的第一数量，其中，所述第一数量不大于网络侧指示的所述目标变量的第二数量；
    上报模块，用于上报CSI，所述CSI对应的所述目标变量的数量为所述第一数量。
  22. 如权利要求21所述的装置，其中，所述目标变量包括如下至少一项：
    第一变量和第二变量；
    所述第一变量包括如下至少一项：
    波束、波束对、正交波束对、空频正交基SD-FD pair、天线端口、CSI参考信号天线端口；
    所述第二变量包括如下至少一项：
    时延径和抽头。
  23. 一种信道状态信息CSI接收装置，包括：
    接收模块，用于接收CSI，所述CSI对应的目标变量的数量为第一数量，所述第一数量不大于网络侧指示的所述目标变量的第二数量。
  24. 如权利要求23所述的装置，其中，所述目标变量包括如下至少一项：
    第一变量和第二变量；
    所述第一变量包括如下至少一项：
    波束、波束对、正交波束对、空频正交基SD-FD pair、天线端口、CSI参考信号天线端口；
    所述第二变量包括如下至少一项：
    时延径和抽头。
  25. 一种终端，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序或者指令，所述程序或者指令被所述处理器执行时实现如权利要求1至12中任一项所述的CSI上报方法中的步骤。
  26. 一种网络侧设备，包括：存储器、处理器及存储在所述存储器上并 可在所述处理器上运行的程序或者指令，所述程序或者指令被所述处理器执行时实现如权利要求13至20中任一项所述的CSI接收方法中的步骤。
  27. 一种可读存储介质，所述可读存储介质上存储有程序或指令，所述程序或指令被处理器执行时实现如权利要求1至12中任一项所述的CSI上报方法中的步骤，或者，所述程序或指令被处理器执行时实现如权利要求13至20中任一项所述的CSI接收方法中的步骤。
PCT/CN2022/110268 2021-08-09 2022-08-04 Csi上报方法、接收方法、装置、终端和网络侧设备 Ceased WO2023016339A1 (zh)

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