Doppler frequency offset reporting method and apparatus, terminal and network-side device

Abstract

The application discloses a Doppler frequency offset reporting method and device, a terminal and a network side equipment, and belongs to the technical field of communication. The Doppler frequency offset reporting method of the application comprises the following steps: a terminal measures a Doppler frequency offset corresponding to at least one transmission reception point (TRP); and the terminal sends Doppler frequency offset reporting information to a network side equipment according to the measurement result, wherein the Doppler frequency offset reporting information is used for indicating the Doppler frequency offset information corresponding to at least one TRP measured by the terminal.

Description

Technical Field

[0001] This application belongs to the field of communications, and specifically relates to a Doppler frequency offset reporting method, apparatus, terminal and network-side equipment. Background Technology

[0002] In scenarios with multiple transmit-receive-points (TRPs), especially in single-frequency network (SFN) transmission scenarios, multiple TRPs transmit data to the user equipment (UE, also known as the terminal). However, due to the varying distances between the UE and the multiple TRPs, the arrival time delay, phase, and Doppler frequency offset of the transmitted signals from each TRP to the UE differ. In particular, the Doppler frequency offset differences between the TRPs are significant, which can severely impact the UE's reception performance. Summary of the Invention

[0003] This application provides a Doppler frequency offset reporting method, apparatus, terminal, and network-side equipment, which can solve the problem that the transmission signal from each TRP has different arrival time delay, phase, and Doppler frequency offset when it arrives at the UE due to different distances between the UE and the TRP, thus affecting the UE's reception performance.

[0004] Firstly, a Doppler frequency offset reporting method is provided, including:

[0005] The terminal performs at least one Doppler frequency offset measurement corresponding to the transmit / receive point TRP;

[0006] Based on the measurement results, the terminal sends Doppler frequency offset reporting information to the network-side device;

[0007] The Doppler frequency offset reporting information is used to indicate the Doppler frequency offset information corresponding to at least one TRP measured by the terminal.

[0008] Secondly, a Doppler frequency offset reporting method is provided, including:

[0009] Network-side equipment receives Doppler frequency offset reporting information sent by the terminal;

[0010] The Doppler frequency offset reporting information is used to indicate the Doppler frequency offset information corresponding to at least one TRP measured by the terminal.

[0011] Thirdly, a Doppler frequency offset reporting device is provided, comprising:

[0012] The measurement module is used to perform Doppler frequency offset measurement at at least one transmit / receive point (TRP).

[0013] The first reporting module is used to send Doppler frequency offset reporting information to the network-side device based on the measurement results;

[0014] The Doppler frequency offset reporting information is used to indicate the Doppler frequency offset information corresponding to at least one TRP measured by the terminal.

[0015] Fourthly, a terminal is provided, the terminal including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method described in the first aspect.

[0016] Fifthly, a terminal is provided, including a processor and a communication interface, wherein the processor is used to perform Doppler frequency offset measurement corresponding to at least one transmit / receive point (TRP).

[0017] Based on the measurement results, send Doppler frequency offset reporting information to the network-side device;

[0018] The Doppler frequency offset reporting information is used to indicate the Doppler frequency offset information corresponding to at least one TRP measured by the terminal.

[0019] Sixthly, a network-side device is provided, comprising:

[0020] The second receiving module is used to receive Doppler frequency offset reporting information sent by the terminal;

[0021] The Doppler frequency offset reporting information is used to indicate the Doppler frequency offset information corresponding to at least one TRP measured by the terminal.

[0022] In a seventh aspect, a network-side device is provided, the network-side device including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method as described in the second aspect.

[0023] Eighthly, a network-side device is provided, including a processor and a communication interface, wherein the communication interface is used to receive Doppler frequency offset reporting information sent by a terminal;

[0024] The Doppler frequency offset reporting information is used to indicate the Doppler frequency offset information corresponding to at least one TRP measured by the terminal.

[0025] A ninth aspect provides a readable storage medium on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first aspect, or implement the steps of the method described in the second aspect.

[0026] In a tenth aspect, a chip is provided, the chip including a processor and a communication interface coupled to the processor, the processor being configured to run programs or instructions to implement the steps of the method as described in the first or second aspect.

[0027] Eleventhly, a computer program / program product is provided, the computer program / program product being stored in a non-volatile storage medium, the program / program product being executed by at least one processor to implement the steps of the method as described in the first or second aspect.

[0028] In this embodiment of the application, by performing Doppler frequency offset measurement for at least one TRP, and sending the Doppler frequency offset reporting information for at least one TRP measured by the terminal to the network-side device, the network-side device can perform preprocessing of the transmitted signal frequency based on the Doppler frequency offset reporting information reported by the terminal, thereby improving the terminal's receiving performance. Attached Figure Description

[0029] Figure 1 This is a structural diagram of a wireless communication system applicable to the embodiments of this application;

[0030] Figure 2 This is one of the flowcharts illustrating the Doppler frequency offset reporting method according to an embodiment of this application;

[0031] Figure 3 This is one of the module schematic diagrams of the Doppler frequency offset reporting device according to an embodiment of this application;

[0032] Figure 4 This is a structural block diagram of the terminal according to an embodiment of this application;

[0033] Figure 5 This is a second schematic flowchart of the Doppler frequency offset reporting method according to an embodiment of this application;

[0034] Figure 6 This is a second schematic diagram of the module of the Doppler frequency offset reporting device according to an embodiment of this application;

[0035] Figure 7 This is a structural block diagram of the network-side device according to an embodiment of this application;

[0036] Figure 8 This is a structural block diagram of a communication device according to an embodiment of this application. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0038] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0039] It is worth noting that the technologies described in this application are not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in this application are often used interchangeably, and the described technologies can be used in the systems and radio technologies mentioned above, as well as in other systems and radio technologies. The following description describes New Radio (NR) systems for illustrative purposes, and NR terminology is used in most of the following description; however, these technologies can also be applied to applications beyond NR systems, such as 6th Generation (6G) communication systems.

[0040] Figure 1This diagram illustrates a structural diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 can also be referred to as a terminal device or user equipment (UE). Terminal 11 can be a mobile phone, tablet computer, laptop computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), wearable device, vehicle-mounted device (VUE), pedestrian terminal (PUE), etc. Wearable devices include smartwatches, wristbands, headphones, glasses, etc. It should be noted that this application does not limit the specific type of terminal 11. Network-side device 12 can be a base station or a core network. The base station can be referred to as a node B, evolved node B, access point, base transceiver station (BTS), radio base station, radio transceiver, basic service set (BSS), extended service set (ESS), B node, evolved B node (eNB), home B node, home evolved B node, WLAN access point, WiFi node, transmitting and receiving point (TRP), or any 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 embodiment, only the base station in the NR system is used as an example, but the specific type of base station is not limited.

[0041] The Doppler frequency offset reporting method, apparatus, terminal, and network-side equipment provided in this application will be described in detail below with reference to the accompanying drawings and through some embodiments and application scenarios.

[0042] like Figure 2 As shown in the figure, this application provides a Doppler frequency offset reporting method, including:

[0043] Step 201: The terminal performs at least one Doppler frequency offset measurement corresponding to the transmit / receive point TRP;

[0044] Step 202: Based on the measurement results, the terminal sends Doppler frequency offset reporting information to the network-side device;

[0045] It should be noted that the Doppler frequency offset reporting information is used to indicate the Doppler frequency offset information corresponding to at least one TRP measured by the terminal.

[0046] Optionally, the Doppler frequency offset information can be a Doppler frequency offset value, a difference between Doppler frequency offset values, or the absolute value of the difference between Doppler frequency offset values.

[0047] It should be noted that the Doppler frequency offset reporting information is used to assist network-side equipment in preprocessing the transmission signal frequency. After receiving the Doppler frequency offset reporting information, the network-side equipment can perform preprocessing of the transmission signal frequency based on the Doppler frequency offset reporting information, thereby improving the terminal's reception performance.

[0048] Alternatively, one possible implementation of step 201 of this application is as follows:

[0049] Step 2011: The terminal receives the first configuration information sent by the network-side device;

[0050] The first configuration information is used to indicate the target measurement resource associated with the Doppler frequency offset reporting. The target measurement resource is used for Doppler frequency offset measurement and includes at least one target resource set.

[0051] Step 2012: Perform at least one Doppler frequency offset measurement for a TRP based on the first configuration information;

[0052] In other words, in this case, the terminal performs Doppler frequency offset measurement based on the target measurement resources associated with the Doppler frequency offset reporting configured by the network-side equipment. After performing the Doppler frequency offset measurement, the terminal can obtain the Doppler frequency offset value corresponding to each TRP.

[0053] Optionally, the target resource set includes at least one of the following:

[0054] A11, Tracking Reference Signal (TRS) resource set;

[0055] A12. Synchronization Signal and PBCH Block (SSB) Burst Set.

[0056] Optionally, the first configuration information includes at least one of the following:

[0057] B11. Target measurement resources in Channel State Information (CSI) resource configuration;

[0058] In other words, in this case, the target measurement resource is the measurement resource configured in the CSI resource setting, for example, the target measurement resource is at least one TRS resource set in the CSI resource setting.

[0059] B12, First parameter, the first parameter is used to indicate the binding relationship between the first measurement resource set and the target measurement resource in the CSI resource configuration;

[0060] It should be noted that the first measurement resource set can be divided into multiple measurement resource subsets, and each resource in each measurement resource subset is associated with a target resource set.

[0061] It should be noted that the first parameter is used to display the binding relationship between the first measurement resource set and the target measurement resource in the CSI resource configuration. For example, the first parameter is used to display the binding relationship between the first measurement resource set and the TRS resource set in the CSI resource configuration.

[0062] Application Scenario 1: Explicitly configuring the TRS resource set associated with Doppler frequency offset information reporting:

[0063] Suppose a Non-Zero Power Channel State Information Reference Signal (NZP-CSI-RS) resource set is configured in a CSI resource configuration, and the CSI resource configuration is associated with a CSI report setting. The NZP-CSI-RS resources in the NZP-CSI-RS resource set are divided into two subsets. Assume that subset 1 contains NZP-CSI-RS1 and NZP-CSI-RS2; and subset 2 contains NZP-CSI-RS3 and NZP-CSI-RS4. Network-side devices use explicit RRC parameters to specify the associated TRS resource sets TRS1, TRS2, TRS3, and TRS4 for Doppler frequency offset information measurement and reporting. In this case, the TRS resources are not directly configured as measurement resources in the CSI resource configuration, but rather indirectly configured through their association with the NZP-CSI-RS resource sets configured in the CSI resource configuration, achieving the desired Doppler frequency offset information measurement and reporting.

[0064] After receiving the configuration information from the network-side device, the NZP-CSI-RS resources in subset 1 are transmitted through TRP1. The terminal measures the CSI information related to TRP1 based on the NZP-CSI-RS resources in subset 1, including information such as Precoding Matrix Indicator (PMI), Rank Indicator (RI), and Channel Quality Indicator (CQI). TRS1 and TRS2, which are bound to TRP1, are also transmitted through TRP1. The terminal measures the Doppler frequency offset value and other information of TRP1 based on TRS1 and TRS2. The NZP-CSI-RS resources in subset 2 are transmitted through TRP2. The terminal measures the CSI information related to TRP2 based on the NZP-CSI-RS resources in subset 2, including information such as PMI, RI, and CQI. TRS3 and TRS4, ​​which are bound to TRP2, are also transmitted through TRP2. The terminal measures the Doppler frequency offset value and other information of TRP2 based on TRS3 and TRS4.

[0065] B13, the quasi-co-location (QCL) reference source corresponding to the second measurement resource set in the CSI resource configuration;

[0066] It should be noted that the second measurement resource set can be divided into multiple measurement resource subsets, and each resource in each measurement resource subset is associated with a target resource set as a QCL reference source.

[0067] Application Scenario 2: Implicitly configuring the TRS resource set associated with Doppler frequency offset information reporting:

[0068] Suppose an NZP-CSI-RS resource set is configured in a CSI resource configuration and associated with a CSI reporting configuration. The NZP-CSI-RS resources in the NZP-CSI-RS resource set are divided into two subsets; subset 1 contains NZP-CSI-RS1 and NZP-CSI-RS2; subset 2 contains NZP-CSI-RS3 and NZP-CSI-RS4. The network side configures the QCL reference sources for NZP-CSI-RS1, NZP-CSI-RS2, NZP-CSI-RS3, and NZP-CSI-RS4 as the TRS resource sets TRS1, TRS2, TRS3, and TRS4. In this case, the terminal performs Doppler frequency offset measurement and reporting based on the TRS resource sets of the NZP-CSI-RS resource QCL reference sources. In this case, the TRS resource is not directly configured as a measurement resource in the CSI resource configuration, but is indirectly configured through the QCL reference relationship between it and the NZP-CSI-RS resource set configured in the CSI resource configuration, so as to achieve the effect of Doppler frequency offset information measurement and reporting.

[0069] After receiving the configuration information from the network-side device, the NZP-CSI-RS resources in subset 1 are transmitted through TRP1. The terminal measures the CSI information related to TRP1 based on the NZP-CSI-RS resources in subset 1, including PMI / RI / CQI information. TRS1 and TRS2, which are bound to TRP1, are also transmitted through TRP1. The terminal measures the Doppler frequency offset value and other information of TRP1 based on TRS1 and TRS2. The NZP-CSI-RS resources in subset 2 are transmitted through TRP2. The terminal measures the CSI information related to TRP2 based on the NZP-CSI-RS resources in subset 2, including PMI / RI / CQI information. TRS3 and TRS4, ​​which are bound to TRP2, are also transmitted through TRP2. The terminal measures the Doppler frequency offset value and other information of TRP2 based on TRS3 and TRS4.

[0070] Optionally, one possible implementation of step 202 in this embodiment is as follows:

[0071] Step 2021: The terminal receives the second configuration information sent by the network-side device;

[0072] Step 2022: Based on the second configuration information, send Doppler frequency offset reporting information to the network-side device.

[0073] Optionally, the second configuration information is used to indicate at least one of the following:

[0074] C11. Configuration of the reporting volume of CSI reporting associated with the reporting of Leyson frequency offset information;

[0075] It should be noted that the reporting volume configuration of the CSI report associated with this Doppler frequency offset information report is used to indicate that at least one of the following is included:

[0076] C111, The terminal reports independent Doppler frequency offset information;

[0077] C112. The terminal reports Doppler frequency offset information and the first CSI reported information;

[0078] It should be noted that the first CSI reported information includes at least one of the following: CSI-RS Resource Indicator (CRI), Precoding Matrix Indicator (PMI), Rank Indicator (RI), Channel Quality Indicator (CQI), Layer Indicator (LI), Reference Signal Received Power (RSRP), and Signal-to-Noise and Interference Ratio (SINR).

[0079] Optionally, in the case of C112, prior to step 202, the method further includes:

[0080] The first reporting cycle for receiving Doppler frequency offset reporting information sent by network-side devices;

[0081] The first reporting period includes at least one of the following:

[0082] D11, Periodic values;

[0083] In other words, the first reporting period contains specific period values.

[0084] D12. The relationship between the reporting period of Doppler frequency offset information and the reporting period of the first CSI information.

[0085] It should be noted that the reporting period for Doppler frequency offset information can be the same as or different from the reporting period for the first CSI information. It should also be noted that if the terminal does not receive the first reporting period from the network-side device, the terminal defaults to the same reporting period for Doppler frequency offset information as for the first CSI information.

[0086] Application Scenario 3: The reporting cycles for CSI and Doppler frequency offset information are different.

[0087] Assume that the network-side device is configured to report CSI data at a period of A.

[0088] 1) If no additional first reporting period is configured, the default reporting period for Doppler frequency offset information measured by the TRS resource set is also A. In this case, the Doppler frequency offset reporting information and other CSI reporting information configured in the CSI reporting configuration can be reused and reported in the same PUCCH or PUSCH resource, or reported independently in different reporting resources.

[0089] 2) If an additional first reporting period is configured, the reporting period for Doppler frequency offset information measured by the TRS resource set is the reporting period B corresponding to the first reporting period. In this case, when the reporting time of Doppler frequency offset information coincides with the reporting time of other CSI reporting information configured in the CSI reporting configuration, the two can be reused and reported in the same PUCCH or PUSCH resource, or reported independently in different reporting resources; however, when the reporting time of other CSI reporting information configured in the CSI reporting configuration arrives, but the reporting time of Doppler frequency offset information has not arrived, the terminal only reports other CSI reporting information and does not report Doppler frequency offset information.

[0090] It should be further noted that the Doppler frequency offset information mentioned above includes at least one of the following forms:

[0091] C21, Doppler frequency offset;

[0092] It should be noted that when the terminal measures several TRPs, the Doppler frequency offset information will include several Doppler frequency offset values. In other words, there is a one-to-one correspondence between TRPs and Doppler frequency offset values, meaning that the Doppler frequency offset information includes at least one Doppler frequency offset value. It can be understood that the Doppler frequency offset value mentioned here and thereafter refers to at least one Doppler frequency offset value.

[0093] Optionally, in this case, the terminal reports at least one of the following:

[0094] C211. Report the differential quantization results of the Doppler frequency offset value;

[0095] It should be noted that in this case, it can be understood that one of at least one Doppler frequency offset values ​​(which can be the largest, the smallest, or any one) or one of the determined values ​​of at least one Doppler frequency offset values ​​is selected as the reference for quantization, and the other Doppler frequency offset values ​​are quantized by taking the difference from the reference.

[0096] Application scenario 3: When the terminal reports multiple Doppler frequency offset values, differential quantization is performed.

[0097] Assume that the TRS resource sets used for Doppler frequency offset information measurement and reporting are TRS1 and TRS2, respectively, and are transmitted through TRP1 and TRP2. The terminal measures the Doppler frequency offset of the signal from TRP1 based on TRS1, and measures the Doppler frequency offset of the signal from TRP2 based on TRS2. The terminal measures the Doppler frequency offset corresponding to the two TRPs to obtain Doppler frequency offset value 1 and Doppler frequency offset value 2, respectively, and reports them. To save bit overhead during reporting, differential quantization is performed on the Doppler frequency offset values ​​1 and 2 that need to be reported. The quantization method includes at least one of the following:

[0098] 1) The quantization benchmark is the larger of Doppler frequency offset values ​​1 and 2, quantized using M bits. The smaller value is quantized using only the difference between its absolute value and the larger value, quantized using N bits, where N... <M;

[0099] 2) The larger of the two Doppler frequency offset values ​​1 and 2 is used as the quantization benchmark and is quantized using M bits. The smaller value is reported only as the difference between it and the larger value and is quantized using L bits.

[0100] C212. Report the sign of the Doppler frequency offset value and the quantization result of the absolute value of the Doppler frequency offset value;

[0101] It should be noted that in this case, the positive or negative value of each Doppler frequency offset is reported. Usually, 1 bit is used to indicate the positive or negative value. Then, the absolute value of each Doppler frequency offset is quantized. The quantization method can be differential quantization, uniform quantization, non-uniform quantization, etc. Therefore, each Doppler frequency offset value includes two parts of bits: the positive or negative indication bit part and the quantization bit part. The two parts are combined into a bit sequence and then reported.

[0102] Application Scenario 4: When the terminal reports the Doppler frequency offset value, the positive or negative value of the reported Doppler frequency offset value is indicated.

[0103] Assume that the TRS resource sets used for Doppler frequency offset information measurement and reporting are TRS1 and TRS2, respectively, and are transmitted through TRP1 and TRP2 respectively. The terminal measures the Doppler frequency offset of the signal from TRP1 based on TRS1 and measures the Doppler frequency offset of the signal from TRP2 based on TRS2.

[0104] The terminal measures the Doppler frequency offsets corresponding to the two TRPs, which are designated as Doppler frequency offset 1 and Doppler frequency offset 2. Doppler frequency offset 1 is a positive value, and Doppler frequency offset 2 is a negative value. A bit '0' indicates a positive sign, and a bit '1' indicates a negative sign; the meanings of bits '0' and '1' can be interchanged. An additional X bits are used to quantize the absolute values ​​of Doppler frequency offset 1 and Doppler frequency offset 2. The quantization method for the absolute values ​​includes differential quantization, uniform quantization, and non-uniform quantization. After quantization, the terminal reports a 1-bit sign indicator for Doppler frequency offset 1 and Doppler frequency offset 2, along with X bits representing the quantization of the absolute values ​​of the Doppler frequency offsets.

[0105] C213. Report the sign of the first target Doppler frequency offset value and the differential quantization result of the Doppler frequency offset value, wherein the first target Doppler frequency offset value is the differential calculation benchmark of the differential quantization.

[0106] The differential calculation benchmark includes one of the following:

[0107] C31, the largest absolute value among the Doppler frequency offset values;

[0108] C32, the smallest absolute value among the Doppler frequency offset values;

[0109] C33, the average value of the Doppler frequency offset.

[0110] C22, at least one difference between the Doppler frequency offset value and the reference value;

[0111] It should be noted that the reference value is one of the Doppler frequency offset values. When determining the difference, the reference value is determined first and used as the minuend or subtrahend. That is, if there are X Doppler frequency offset values, then X-1 difference values ​​will be determined in the end.

[0112] Application Scenario 5: When the terminal reports a difference in Doppler frequency offset information:

[0113] Assume that the TRS resource sets used for Doppler frequency offset information measurement and reporting are TRS1 and TRS2, respectively, and are transmitted through TRP1 and TRP2. The terminal measures the Doppler frequency offset of the signal from TRP1 based on TRS1, and measures the Doppler frequency offset of the signal from TRP2 based on TRS2. The terminal obtains Doppler frequency offset value 1 and Doppler frequency offset value 2 by measuring the Doppler frequency offset corresponding to the two TRPs.

[0114] Network-side equipment indicates to the terminal, via two Transmission Configuration Index (TCI) states in the Downlink Control Information (DCI) / Media Access Control (MAC) Control Element (CE), that the QCL references for the Downlink Demodulation Reference Signal (DMRS) of the Physical Downlink Shared Channel (PDSCH) or Physical Downlink Control Channel (PDCCH) are TRS1 and TRS2. Assuming TRS1 provides the frequency offset reference for the DMRS of the PDSCH or PDCCH, then in this case, the difference in Doppler frequency offset between the network-side equipment and the terminal is calculated based on the Doppler frequency offset value 1 corresponding to the measurement result of TRS1, i.e., difference = Doppler frequency offset value 1 - Doppler frequency offset value 2, or difference = Doppler frequency offset value 2 - Doppler frequency offset value 1.

[0115] C23, the absolute value of at least one difference between the Doppler frequency offset value and the reference value;

[0116] Optionally, in this case, the terminal also needs to report the sign of the difference between the Doppler frequency offset value and the reference value.

[0117] It should be noted that the reference value is one of the Doppler frequency offset values. When determining the difference, the reference value is determined first and used as the minuend or subtrahend. That is, if there are X Doppler frequency offset values, the absolute values ​​of X-1 differences will be determined in the end, where X≥2. Since the magnitude of two Doppler frequency offset values ​​cannot be known from the absolute value, in this case, the terminal also needs to report the sign of at least one difference between the Doppler frequency offset value and the reference value. In other words, for each difference, the terminal includes two parts of bits: a sign indicator bit and an absolute value indicator bit.

[0118] Application Scenario 6: When the terminal reports the absolute value of a Doppler frequency deviation:

[0119] Assume that the TRS resource sets used for Doppler frequency offset information measurement and reporting are TRS1 and TRS2, respectively, and are transmitted through TRP1 and TRP2. The terminal measures the Doppler frequency offset of the signal from TRP1 based on TRS1, and measures the Doppler frequency offset of the signal from TRP2 based on TRS2. The terminal obtains Doppler frequency offset value 1 and Doppler frequency offset value 2 by measuring the Doppler frequency offset corresponding to the two TRPs.

[0120] The terminal calculates the absolute value of the difference between Doppler frequency offset 1 and Doppler frequency offset 2, i.e., the absolute value of the difference = |Doppler frequency offset 1 - Doppler frequency offset 2|. If the absolute value of the difference is positive, it is represented by bit '0'; if the absolute value of the difference is negative, it is represented by bit '1'. The meanings of bits '0' and '1' can be interchanged. Additionally, an extra Y bits are used to quantize the absolute value of the difference; specifically, this quantization method can be differential quantization, uniform quantization, non-uniform quantization, etc.

[0121] It should be noted that the reference values ​​in C22 and C23 above are the Doppler frequency offset values ​​measured by the target resource set that provides a frequency offset QCL reference in the Transmission Configuration Indication (TCI) state indicated by the network-side device.

[0122] Alternatively, the first reference information corresponding to the reference value is configured to the terminal by the network-side device through RRC signaling. This first reference information is used to determine the reference value. For example, the first reference information is measurement signal / configuration information, which corresponds to a specific reference value. Thus, the reference value can be determined through the first reference information.

[0123] Alternatively, the Doppler frequency offset reporting information may include first identification information, which is used to indicate second reference information corresponding to the reference value for obtaining the Doppler frequency offset value. The second reference information is used to determine the reference value. The second reference information may be measurement signal / configuration information, etc., which corresponds to a specific reference value. Thus, the reference value can be determined through the second reference information.

[0124] It should be noted that when the protocol stipulates or the higher-level configuration allows the terminal to report Doppler frequency offset information using at least two of the methods in C21-C23, the network-side device can flexibly configure the terminal to use which method to report at different times during the specific reporting process. Optionally, the method further includes:

[0125] The terminal receives a first reporting instruction information sent by the network-side device. The first reporting instruction information is used to indicate the switching of the Doppler frequency offset information reporting.

[0126] For example, if the protocol stipulates or the higher layer configures the terminal to report Doppler frequency offset information in two ways, the terminal will change the reporting method once each time it receives the first reporting instruction information; if the protocol stipulates or the higher layer configures the terminal to report Doppler frequency offset information in three ways, the first reporting information usually needs to include the reporting method after the terminal switches, and after receiving the first reporting instruction information, the terminal will switch the reporting method to the reporting method indicated in the first reporting instruction information.

[0127] For example, the protocol stipulates that the terminal can use C21 and C22 to report Doppler frequency offset information. When the network-side device is configured to use the C21 reporting method at time 1, and the network-side device wants to change the terminal's reporting method at time 2, the network-side device needs to send a first reporting instruction to the terminal. After receiving the first reporting instruction, the terminal knows that the network-side device has switched the reporting method, and then uses the C22 reporting method to report Doppler frequency offset information in the next report.

[0128] C12. Configuration of the reporting timing for CSI reporting associated with Doppler frequency offset information reporting;

[0129] Optionally, the reporting timing configuration includes at least one of the following:

[0130] Periodic reporting;

[0131] Semi-continuous reporting;

[0132] Non-periodic reporting.

[0133] In other words, under these circumstances, the terminal sends Doppler frequency offset reporting information to the network-side device at the reporting time corresponding to the Doppler frequency offset information reporting.

[0134] Optionally, it should also be noted that the terminal can also determine whether to send Doppler frequency offset reporting information based on the indication information sent by the network-side device. Optionally, the method in this application embodiment further includes:

[0135] The network-side device receives a first indication message sent via Radio Resource Control (RRC) signaling, the first indication message being used to indicate whether to report Doppler frequency offset information.

[0136] Furthermore, when the terminal receives the first indication information, if the first indication information indicates that Doppler frequency offset information needs to be reported, the terminal sends Doppler frequency offset reporting information to the network-side device at the reporting time corresponding to the Doppler frequency offset information reporting.

[0137] In other words, in this scenario, the terminal does not actively report Doppler frequency offset information. It only sends Doppler frequency offset reporting information to the network-side device when the network device indicates that it needs to obtain this information. This reduces the frequency of Doppler frequency offset reporting and lowers signaling overhead. Furthermore, if the network-side device does not support receiving Doppler frequency offset information reported by the terminal, it can still send a first indication message to the terminal.

[0138] Optionally, it should also be noted that the network-side device can determine whether Doppler frequency offset information reporting is required based on the terminal's capabilities. The method in this application embodiment further includes:

[0139] The terminal capability information is sent to the network-side equipment. This terminal capability information is used to indicate whether the terminal supports the reporting of Doppler frequency offset information.

[0140] When the network-side device receives the terminal capability information, and the terminal capability information indicates that the terminal supports the reporting of Doppler frequency offset information, the network-side device can send first indication information to the terminal, so that the terminal reports the Doppler frequency offset information after performing Doppler frequency offset measurement; or when the network-side device receives the terminal capability information, and the terminal capability information indicates that the terminal supports the reporting of Doppler frequency offset information, it sends first configuration information to instruct the terminal to perform Doppler frequency offset measurement. After performing Doppler frequency offset measurement, the terminal sends Doppler frequency offset reporting information to the network-side device at the reporting time corresponding to the Doppler frequency offset information reporting. The above methods can avoid the occurrence of the network-side device sending invalid configuration information, thereby ensuring the effectiveness of communication.

[0141] Application Scenario 8: When the terminal receives PDSCH data:

[0142] 1) The first TCI state in a certain TCI codepoint in the MAC CE is used as the reference for adjusting the downlink carrier frequency. The MAC CE is used to activate the TCI state associated with the PDSCH. The TCI state provides the DMRS of the PDSCH with a QCL reference including frequency offset.

[0143] 2) Use the TCI state associated with PDCCH DMRS as the reference for adjusting the downlink carrier frequency.

[0144] It should be noted that the MTRP Doppler frequency offset reporting method proposed in this application mainly solves the problem of deep time-domain channel attenuation in MTRP scenarios, especially in SFN transmission scenarios. After the network side obtains the Doppler frequency offset information reported by the terminal, the network side can perform preprocessing of the transmitted signal frequency based on this information, thereby effectively improving the terminal's receiving performance.

[0145] It should be noted that the Doppler frequency offset reporting method provided in this application embodiment can be executed by a Doppler frequency offset reporting device, or by a control module in the Doppler frequency offset reporting device for executing the Doppler frequency offset reporting method. This application embodiment uses the execution of the Doppler frequency offset reporting method by a Doppler frequency offset reporting device as an example to illustrate the Doppler frequency offset reporting device provided in this application embodiment.

[0146] like Figure 3 As shown, this application embodiment provides a Doppler frequency offset reporting device 300, including:

[0147] Measurement module 301 is used to perform Doppler frequency offset measurement at least one transmit / receive point TRP;

[0148] The first reporting module 302 is used to send Doppler frequency offset reporting information to the network-side device based on the measurement results;

[0149] The Doppler frequency offset reporting information is used to indicate the Doppler frequency offset information corresponding to at least one TRP measured by the terminal.

[0150] Optionally, the measurement module 301 includes:

[0151] The first receiving unit is used to receive the first configuration information sent by the network-side device;

[0152] The measurement unit is configured to perform at least one Doppler frequency offset measurement corresponding to a TRP based on the first configuration information.

[0153] The first configuration information is used to instruct the target measurement resource associated with the reporting of Doppler frequency offset information. The target measurement resource is used for Doppler frequency offset measurement and includes at least one target resource set.

[0154] Optionally, the target resource set includes at least one of the following:

[0155] Tracking Reference Signal (TRS) resource set;

[0156] Synchronization signal and physical broadcast channel block (SSB) burst set.

[0157] Optionally, the first configuration information includes at least one of the following:

[0158] Target measurement resources in Channel State Information (CSI) resource configuration;

[0159] The first parameter indicates the binding relationship between the first measurement resource set and the target resource in the CSI resource configuration.

[0160] The quasi-co-located QCL reference source corresponding to the second measurement resource set in the CSI resource configuration.

[0161] Optionally, the first measurement resource set can be divided into multiple measurement resource subsets, and each resource in each measurement resource subset is associated with a target resource set.

[0162] Optionally, the second measurement resource set can be divided into multiple measurement resource subsets, and each resource in each measurement resource subset is associated with a target resource set as a QCL reference source.

[0163] Optionally, the first reporting module 302 includes:

[0164] The second receiving unit is used to receive the second configuration information sent by the network-side device;

[0165] The first sending unit is used to send Doppler frequency offset reporting information to the network-side device according to the second configuration information.

[0166] Optionally, the second configuration information is used to indicate at least one of the following:

[0167] Configuration of the reporting volume of CSI reports associated with Doppler frequency offset information reporting;

[0168] The timing configuration for CSI reporting associated with Doppler frequency offset information reporting.

[0169] Optionally, the reporting amount configuration of the CSI reporting associated with the Doppler frequency offset information reporting is used to indicate at least one of the following:

[0170] The terminal reports independent Doppler frequency offset information;

[0171] The terminal reports Doppler frequency offset information and first CSI reporting information. The first CSI reporting information includes at least one of the following: CSI-RS resource indicator (CRI), precoding matrix indicator (PMI), rank indicator (RI), channel quality indicator (CQI), layer indicator (LI), reference signal measurement power (RSRP), and signal-to-interference-plus-noise ratio (SINR).

[0172] Optionally, the Doppler frequency offset information includes at least one of the following forms:

[0173] Doppler frequency offset;

[0174] At least one difference between the Doppler frequency offset and the reference value;

[0175] The absolute value of at least one difference between the Doppler frequency offset and the reference value;

[0176] The reference value is one of the Doppler frequency offset values.

[0177] Optionally, when reporting the Doppler frequency offset value, the terminal reports at least one of the following:

[0178] Report the differential quantization results of the Doppler frequency offset;

[0179] Report the positive or negative value of the Doppler frequency offset and the quantization results of the absolute value of the Doppler frequency offset;

[0180] The report includes the sign of the first target Doppler frequency offset value and the differential quantization result of the Doppler frequency offset value, wherein the first target Doppler frequency offset value is the differential calculation benchmark of the differential quantization.

[0181] Optionally, the differential calculation benchmark includes one of the following:

[0182] The one with the largest absolute value among the Doppler frequency offset values;

[0183] The smallest absolute value among the Doppler frequency offset values;

[0184] The average value of the Doppler frequency offset.

[0185] Optionally, the reference value is the Doppler frequency offset value measured by the target resource set that provides a frequency offset QCL reference in the Transmission Configuration Indication (TCI) state indicated by the network-side device.

[0186] Optionally, the first reference information corresponding to the reference value is configured to the terminal by the network-side device through RRC signaling, and the first reference information is used to determine the reference value.

[0187] Optionally, the Doppler frequency offset reporting information includes first identification information, which is used to indicate second reference information corresponding to the reference value for obtaining the Doppler frequency offset value, and the second reference information is used to determine the reference value.

[0188] Optionally, when reporting the absolute value of at least one difference between the Doppler frequency offset value and a reference value, the device further includes:

[0189] The second reporting module is used to report the sign of the difference between the Doppler frequency offset value and the reference value.

[0190] Optionally, the device further includes:

[0191] The third receiving module is used to receive a first reporting indication information sent by the network-side device. The first reporting indication information is used to indicate the switching of the Doppler frequency offset information reporting.

[0192] Optionally, the reporting timing configuration includes at least one of the following:

[0193] Periodic reporting;

[0194] Semi-continuous reporting;

[0195] Non-periodic reporting.

[0196] Optionally, when the reporting amount configuration of the CSI reporting associated with the Doppler frequency offset information reporting instructs the terminal to report Doppler frequency offset information and first CSI reporting information, it further includes:

[0197] The fourth receiving module is used to receive the first reporting cycle of Doppler frequency offset reporting information sent by the network-side device;

[0198] The first reporting period includes at least one of the following:

[0199] Periodic values;

[0200] The relationship between the reporting period of Doppler frequency offset information and the reporting period of the first CSI information.

[0201] Optionally, the device further includes:

[0202] The first sending module is used to send terminal capability information to the network-side device;

[0203] The terminal capability information is used to indicate whether the terminal supports the reporting of Doppler frequency offset information.

[0204] Optionally, the device further includes:

[0205] The fifth receiving module is used to receive the first indication information sent by the network-side device through Radio Resource Control (RRC) signaling;

[0206] The first indication information is used to indicate whether to report Doppler frequency offset information.

[0207] It should be noted that by performing Doppler frequency offset measurement for at least one TRP, and sending the Doppler frequency offset information corresponding to at least one TRP measured by the terminal to the network-side device, the network-side device can perform preprocessing of the transmitted signal frequency based on the Doppler frequency offset information reported by the terminal, thereby improving the terminal's receiving performance.

[0208] The Doppler frequency offset reporting device in this application embodiment can be a device, a device or electronic device with an operating system, or a component, integrated circuit, or chip in a terminal. The device or electronic device can be a mobile terminal or a non-mobile terminal. For example, a mobile terminal can include, but is not limited to, the types of terminals 11 listed above, while a non-mobile terminal can be a server, network attached storage (NAS), personal computer (PC), television (TV), ATM, or self-service machine, etc. This application embodiment does not impose specific limitations.

[0209] The Doppler frequency offset reporting device provided in this application embodiment can achieve... Figure 2 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0210] This application embodiment also provides a terminal, including a processor and a communication interface. The processor is used to perform Doppler frequency offset measurement corresponding to at least one Transmitter-Receiver Point (TRP). The communication interface is used to send Doppler frequency offset reporting information to the network-side device according to the measurement results.

[0211] The Doppler frequency offset reporting information is used to indicate the Doppler frequency offset information corresponding to at least one TRP measured by the terminal.

[0212] This terminal embodiment corresponds to the aforementioned terminal-side method embodiment. All implementation processes and methods of the aforementioned method embodiments can be applied to this terminal embodiment and achieve the same technical effect. Specifically, Figure 4 A schematic diagram of the hardware structure of a terminal to implement an embodiment of this application.

[0213] The terminal 400 includes, but is not limited to, at least some of the following components: radio frequency unit 401, network module 402, audio output unit 403, input unit 404, sensor 405, display unit 406, user input unit 407, interface unit 408, memory 409, and processor 410.

[0214] Those skilled in the art will understand that the terminal 400 may also include a power supply (such as a battery) for supplying power to various components. The power supply can be logically connected to the processor 410 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 4 The terminal structure shown does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0215] It should be understood that, in this embodiment, the input unit 404 may include a graphics processing unit (GPU) 4041 and a microphone 4042. The GPU 4041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 406 may include a display panel 4061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 407 includes a touch panel 4071 and other input devices 4072. The touch panel 4071 is also called a touch screen. The touch panel 4071 may include a touch detection device and a touch controller. Other input devices 4072 may include, but are not limited to, a physical keyboard, function keys (such as volume control buttons, power buttons, etc.), a trackball, a mouse, and a joystick, which will not be described in detail here.

[0216] In this embodiment, the radio frequency unit 401 receives downlink data from the network-side device and processes it for the processor 410; additionally, it sends uplink data to the network-side device. Typically, the radio frequency unit 401 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, etc.

[0217] The memory 409 can be used to store software programs or instructions and various data. The memory 409 may primarily include a program or instruction storage area and a data storage area. The program or instruction storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 409 may include high-speed random access memory and non-volatile memory, which may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. For example, at least one disk storage device, flash memory device, or other non-volatile solid-state storage device.

[0218] Processor 410 may include one or more processing units; optionally, processor 410 may integrate an application processor and a modem processor, wherein the application processor mainly handles the operating system, user interface, and applications or instructions, and the modem processor mainly handles wireless communication, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 410.

[0219] The processor 410 is used to implement:

[0220] Perform at least one Doppler frequency offset measurement corresponding to the transmit / receive point TRP;

[0221] The radio frequency unit 401 is used to send Doppler frequency offset reporting information to the network-side device based on the measurement results;

[0222] The Doppler frequency offset reporting information is used to indicate the Doppler frequency offset information corresponding to at least one TRP measured by the terminal.

[0223] The terminal in this application embodiment performs Doppler frequency offset measurement for at least one TRP and sends Doppler frequency offset reporting information, which indicates the Doppler frequency offset information for at least one TRP measured by the terminal, to the network-side device. This enables the network-side device to preprocess the transmitted signal frequency based on the Doppler frequency offset reporting information reported by the terminal, thereby improving the terminal's receiving performance.

[0224] Optionally, the radio frequency unit 401 is used to implement:

[0225] Receive the first configuration information sent by the network-side device;

[0226] The processor 410 is used to perform at least one Doppler frequency offset measurement corresponding to a TRP based on the first configuration information.

[0227] The first configuration information is used to instruct the target measurement resource associated with the reporting of Doppler frequency offset information. The target measurement resource is used for Doppler frequency offset measurement and includes at least one target resource set.

[0228] Optionally, the target resource set includes at least one of the following:

[0229] Tracking Reference Signal (TRS) resource set;

[0230] Synchronization signal and physical broadcast channel block (SSB) burst set.

[0231] Optionally, the radio frequency unit 401 is further configured to:

[0232] Send terminal capability information to network-side devices;

[0233] The terminal capability information is used to indicate whether the terminal supports the reporting of Doppler frequency offset information.

[0234] Optionally, the first configuration information includes at least one of the following:

[0235] Target measurement resources in Channel State Information (CSI) resource configuration;

[0236] The first parameter indicates the binding relationship between the first measurement resource set and the target measurement resource in the CSI resource configuration.

[0237] The quasi-co-located QCL reference source corresponding to the second measurement resource set in the CSI resource configuration.

[0238] Optionally, the first measurement resource set can be divided into multiple measurement resource subsets, and each resource in each measurement resource subset is associated with a target resource set.

[0239] Optionally, the second measurement resource set can be divided into multiple measurement resource subsets, and each resource in each measurement resource subset is associated with a target resource set as a QCL reference source.

[0240] Optionally, the radio frequency unit 401 is used to implement:

[0241] Receive the second configuration information sent by the network-side device;

[0242] Based on the second configuration information, Doppler frequency offset reporting information is sent to the network-side device.

[0243] Optionally, the second configuration information is used to indicate at least one of the following:

[0244] Configuration of the reporting volume of CSI reports associated with Doppler frequency offset information reporting;

[0245] The timing configuration for CSI reporting associated with Doppler frequency offset information reporting.

[0246] Optionally, the reporting amount configuration of the CSI reporting associated with the Doppler frequency offset information reporting is used to indicate at least one of the following:

[0247] The terminal reports independent Doppler frequency offset information;

[0248] The terminal reports Doppler frequency offset information and first CSI reporting information. The first CSI reporting information includes at least one of the following: CSI-RS resource indicator (CRI), precoding matrix indicator (PMI), rank indicator (RI), channel quality indicator (CQI), layer indicator (LI), reference signal measurement power (RSRP), and signal-to-interference-plus-noise ratio (SINR).

[0249] Optionally, the Doppler frequency offset information includes at least one of the following forms:

[0250] Doppler frequency offset;

[0251] At least one difference between the Doppler frequency offset and the reference value;

[0252] The absolute value of at least one difference between the Doppler frequency offset and the reference value;

[0253] The reference value is one of the Doppler frequency offset values.

[0254] Optionally, when reporting the Doppler frequency offset value, the terminal reports at least one of the following:

[0255] Report the differential quantization results of the Doppler frequency offset;

[0256] Report the positive or negative value of the Doppler frequency offset and the quantization results of the absolute value of the Doppler frequency offset;

[0257] The report includes the sign of the first target Doppler frequency offset value and the differential quantization result of the Doppler frequency offset value, wherein the first target Doppler frequency offset value is the differential calculation benchmark of the differential quantization.

[0258] Optionally, the differential calculation benchmark includes one of the following:

[0259] The one with the largest absolute value among the Doppler frequency offset values;

[0260] The smallest absolute value among the Doppler frequency offset values;

[0261] The average value of the Doppler frequency offset.

[0262] Optionally, the reference value is the Doppler frequency offset value measured by the target resource set that provides a frequency offset QCL reference in the Transmission Configuration Indication (TCI) state indicated by the network-side device.

[0263] Optionally, the first reference information corresponding to the reference value is configured to the terminal by the network-side device through RRC signaling, and the first reference information is used to determine the reference value.

[0264] Optionally, the Doppler frequency offset reporting information includes first identification information, which is used to indicate second reference information corresponding to the reference value for obtaining the Doppler frequency offset value, and the second reference information is used to determine the reference value.

[0265] Optionally, when reporting the absolute value of at least one difference between the Doppler frequency offset value and the reference value, the radio frequency unit 401 is further configured to:

[0266] Report the sign of the difference between the Doppler frequency offset value and the reference value.

[0267] Optionally, the radio frequency unit 401 is further configured to:

[0268] The device receives a first reporting instruction message sent by a network-side device. The first reporting instruction message is used to instruct the switching of the Doppler frequency offset information reporting.

[0269] Optionally, the reporting timing configuration includes at least one of the following:

[0270] Periodic reporting;

[0271] Semi-continuous reporting;

[0272] Non-periodic reporting.

[0273] Optionally, when the reporting amount configuration of the CSI reporting associated with the Doppler frequency offset information reporting instructs the terminal to report Doppler frequency offset information and first CSI reporting information, the radio frequency unit 401 is further configured to implement:

[0274] The first reporting cycle for receiving Doppler frequency offset reporting information sent by network-side devices;

[0275] The first reporting period includes at least one of the following:

[0276] Periodic values;

[0277] The relationship between the reporting period of Doppler frequency offset information and the reporting period of the first CSI information.

[0278] Optionally, the radio frequency unit 401 is used to implement:

[0279] Receive the first indication information sent by the network-side device via Radio Resource Control (RRC) signaling;

[0280] The first indication information is used to indicate whether to report Doppler frequency offset information.

[0281] Preferably, this application embodiment also provides a terminal, including a processor, a memory, and a program or instructions stored in the memory and executable on the processor. When the program or instructions are executed by the processor, they implement the various processes of the Doppler frequency offset reporting method embodiment and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0282] This application also provides a readable storage medium storing a program or instructions. When executed by a processor, the program or instructions implement the various processes of the Doppler frequency offset reporting method embodiment and achieve the same technical effect. To avoid repetition, these will not be described again here. The computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0283] like Figure 5 As shown in the embodiments of this application, a Doppler frequency offset reporting method is also provided, including:

[0284] Step 501: The network-side device receives the Doppler frequency offset reporting information sent by the terminal;

[0285] The Doppler frequency offset reporting information is used to indicate the Doppler frequency offset information corresponding to at least one TRP measured by the terminal.

[0286] Furthermore, the network-side equipment preprocesses the transmitted signal frequency based on the Doppler frequency offset reporting information, thereby improving the terminal's receiving performance.

[0287] Optionally, the method further includes:

[0288] Send first configuration information to the terminal. The first configuration information is used to instruct the target measurement resource associated with the reporting of Doppler frequency offset information. The target measurement resource is used for Doppler frequency offset measurement and includes at least one target resource set.

[0289] Optionally, the target measurement resource set includes at least one of the following:

[0290] Tracking Reference Signal (TRS) resource set;

[0291] Synchronization signal and physical broadcast channel block (SSB) resource set.

[0292] Optionally, the first configuration information includes at least one of the following:

[0293] Target measurement resources in Channel State Information (CSI) resource configuration;

[0294] The first parameter indicates the binding relationship between the first measurement resource set and the target measurement resource in the CSI resource configuration.

[0295] The quasi-co-located QCL reference source corresponding to the second measurement resource set in the CSI resource configuration.

[0296] Optionally, the first measurement resource set can be divided into multiple measurement resource subsets, and each resource in each measurement resource subset is associated with a target resource set.

[0297] Optionally, the second measurement resource set can be divided into multiple measurement resource subsets, and each resource in each measurement resource subset is associated with a target resource set as a QCL reference source.

[0298] Optionally, the Doppler frequency offset reporting information sent by the receiving terminal includes:

[0299] Send the second configuration information to the terminal;

[0300] The receiving terminal sends Doppler frequency offset reporting information based on the second configuration information.

[0301] Optionally, the second configuration information is used to indicate at least one of the following:

[0302] Configuration of the reporting volume of CSI reports associated with Doppler frequency offset information reporting;

[0303] The timing configuration for CSI reporting associated with Doppler frequency offset information reporting.

[0304] Optionally, the reporting amount configuration of the CSI reporting associated with the Doppler frequency offset information reporting is used to indicate at least one of the following:

[0305] The terminal reports independent Doppler frequency offset information;

[0306] The terminal reports Doppler frequency offset information and first CSI reporting information. The first CSI reporting information includes at least one of the following: CSI-RS resource indicator (CRI), precoding matrix indicator (PMI), rank indicator (RI), channel quality indicator (CQI), layer indicator (LI), reference signal measurement power (RSRP), and signal-to-interference-plus-noise ratio (SINR).

[0307] Optionally, the Doppler frequency offset information includes at least one of the following forms:

[0308] Doppler frequency offset;

[0309] At least one difference between the Doppler frequency offset and the reference value;

[0310] The absolute value of at least one difference between the Doppler frequency offset and the reference value;

[0311] The reference value is one of the Doppler frequency offset values.

[0312] Optionally, when receiving a Doppler frequency offset value, the network device receives at least one of the following:

[0313] Differential quantization results of received Doppler frequency offset values;

[0314] The quantization results of the positive and negative values ​​of the received Doppler frequency offset and the absolute value of the Doppler frequency offset;

[0315] The system receives the sign of the first target Doppler frequency offset value and the differential quantization result of the Doppler frequency offset value, wherein the first target Doppler frequency offset value is the differential calculation benchmark of the differential quantization.

[0316] Optionally, the differential calculation benchmark includes one of the following:

[0317] The one with the largest absolute value among the Doppler frequency offset values;

[0318] The smallest absolute value among the Doppler frequency offset values;

[0319] The average value of the Doppler frequency offset.

[0320] Optionally, the reference value is the Doppler frequency offset value measured by the target resource set that provides a frequency offset QCL reference in the Transmission Configuration Indication (TCI) state indicated by the network-side device for the terminal.

[0321] Optionally, the first reference information corresponding to the reference value is configured to the terminal via RRC signaling, and the first reference information is used to determine the reference value.

[0322] Optionally, the Doppler frequency offset reporting information includes first identification information, which is used to indicate second reference information corresponding to the reference value for obtaining the Doppler frequency offset value, and the second reference information is used to determine the reference value.

[0323] Optionally, if the absolute value of the difference between the Doppler frequency offset value and the reference value is received, the method further includes:

[0324] The sign of the difference between the received Doppler frequency offset value and the reference value.

[0325] Optionally, before the Doppler frequency offset reporting information sent by the receiving terminal, the method further includes:

[0326] Send a first reporting instruction to the terminal, the first reporting instruction being used to instruct the switching of the Doppler frequency offset information reporting.

[0327] Optionally, the reporting timing configuration includes at least one of the following:

[0328] Periodic reporting;

[0329] Semi-continuous reporting;

[0330] Non-periodic reporting.

[0331] Optionally, when the reporting amount configuration of the CSI reporting associated with the Doppler frequency offset information reporting instructs the terminal to report Doppler frequency offset information and first CSI reporting information, it further includes:

[0332] The first reporting cycle for sending Doppler frequency offset reporting information to the terminal;

[0333] The first reporting period includes at least one of the following:

[0334] Periodic values;

[0335] The relationship between the reporting period of Doppler frequency offset information and the reporting period of the first CSI information.

[0336] Optionally, the method further includes:

[0337] Receive terminal capability information sent by the receiving terminal;

[0338] The terminal capability information is used to indicate whether the terminal supports the reporting of Doppler frequency offset information.

[0339] Optionally, the method further includes:

[0340] The first indication information is sent to the terminal via Radio Resource Control (RRC) signaling;

[0341] The first indication information is used to indicate whether to report Doppler frequency offset information.

[0342] It should be noted that all descriptions of network-side devices in the above application embodiments are applicable to the Doppler frequency offset reporting method embodiments and can achieve the same technical effect, so they will not be repeated here.

[0343] like Figure 6 As shown in the figure, this application embodiment also provides a Doppler frequency offset reporting device 600, including:

[0344] The first receiving module 601 is used to receive Doppler frequency offset reporting information sent by the terminal;

[0345] The Doppler frequency offset reporting information is used to indicate the Doppler frequency offset information corresponding to at least one TRP measured by the terminal.

[0346] Optionally, the device further includes:

[0347] The second sending module is used to send first configuration information to the terminal. The first configuration information is used to indicate the target measurement resource associated with the Doppler frequency offset reporting. The target measurement resource is used for Doppler frequency offset measurement and includes at least one target resource set.

[0348] Optionally, the target resource set includes at least one of the following:

[0349] Tracking Reference Signal (TRS) resource set;

[0350] Synchronization signal and physical broadcast channel block (SSB) resource set.

[0351] Optionally, the first configuration information includes at least one of the following:

[0352] Target measurement resources in Channel State Information (CSI) resource configuration;

[0353] The first parameter indicates the binding relationship between the first measurement resource set and the target measurement resource in the CSI resource configuration.

[0354] The quasi-co-located QCL reference source corresponding to the second measurement resource set in the CSI resource configuration.

[0355] Optionally, the first measurement resource set can be divided into multiple measurement resource subsets, and each resource in each measurement resource subset is associated with a target resource set.

[0356] Optionally, the second measurement resource set can be divided into multiple measurement resource subsets, and each resource in each measurement resource subset is associated with a target resource set as a QCL reference source.

[0357] Optionally, the first receiving module 601 includes:

[0358] The second sending unit is used to send the second configuration information to the terminal;

[0359] The third receiving unit is used to receive Doppler frequency offset reporting information sent by the terminal according to the second configuration information.

[0360] Optionally, the second configuration information is used to indicate at least one of the following:

[0361] Configuration of the reporting volume of CSI reports associated with Doppler frequency offset information reporting;

[0362] The timing configuration for CSI reporting associated with Doppler frequency offset information reporting.

[0363] Optionally, the reporting amount configuration of the CSI reporting associated with the Doppler frequency offset information reporting is used to indicate at least one of the following:

[0364] The terminal reports independent Doppler frequency offset information;

[0365] The terminal reports Doppler frequency offset information and first CSI reporting information. The first CSI reporting information includes at least one of the following: CSI-RS resource indicator (CRI), precoding matrix indicator (PMI), rank indicator (RI), channel quality indicator (CQI), layer indicator (LI), reference signal measurement power (RSRP), and signal-to-interference-plus-noise ratio (SINR).

[0366] Optionally, the Doppler frequency offset information includes at least one of the following forms:

[0367] Doppler frequency offset;

[0368] At least one difference between the Doppler frequency offset and the reference value;

[0369] The absolute value of at least one difference between the Doppler frequency offset and the reference value;

[0370] The reference value is one of the Doppler frequency offset values.

[0371] Optionally, when receiving a Doppler frequency offset value, the network device receives at least one of the following:

[0372] Differential quantization results of received Doppler frequency offset values;

[0373] The quantization results of the positive and negative values ​​of the received Doppler frequency offset and the absolute value of the Doppler frequency offset;

[0374] The system receives the sign of the first target Doppler frequency offset value and the differential quantization result of the Doppler frequency offset value, wherein the first target Doppler frequency offset value is the differential calculation benchmark of the differential quantization.

[0375] Optionally, the differential calculation benchmark includes one of the following:

[0376] The one with the largest absolute value among the Doppler frequency offset values;

[0377] The smallest absolute value among the Doppler frequency offset values;

[0378] The average value of the Doppler frequency offset.

[0379] Optionally, the reference value is the Doppler frequency offset value measured by the target resource set that provides a frequency offset QCL reference in the Transmission Configuration Indication (TCI) state indicated by the network-side device for the terminal.

[0380] Optionally, the first reference information corresponding to the reference value is configured to the terminal via RRC signaling, and the first reference information is used to determine the reference value.

[0381] Optionally, the Doppler frequency offset reporting information includes first identification information, which is used to indicate second reference information corresponding to the reference value for obtaining the Doppler frequency offset value, and the second reference information is used to determine the reference value.

[0382] Optionally, when receiving the absolute value of at least one difference between the Doppler frequency offset value and a reference value, the device further includes:

[0383] The sixth receiving module is used to receive the sign of the difference between the Doppler frequency offset value and the reference value.

[0384] Optionally, the device further includes:

[0385] The third sending module is used to send a first reporting instruction information to the terminal, the first reporting instruction information being used to instruct the switching of the Doppler frequency offset information reporting.

[0386] Optionally, the reporting timing configuration includes at least one of the following:

[0387] Periodic reporting;

[0388] Semi-continuous reporting;

[0389] Non-periodic reporting.

[0390] Optionally, when the reporting amount configuration of the CSI reporting associated with the Doppler frequency offset information reporting instructs the terminal to report Doppler frequency offset information and first CSI reporting information, it further includes:

[0391] The fourth transmitting module is used to send the first reporting cycle of Doppler frequency offset reporting information to the terminal;

[0392] The first reporting period includes at least one of the following:

[0393] Periodic values;

[0394] The relationship between the reporting period of Doppler frequency offset information and the reporting period of the first CSI information.

[0395] Optionally, the device further includes:

[0396] The seventh receiving module is used to receive terminal capability information sent by the terminal.

[0397] The terminal capability information is used to indicate whether the terminal supports the reporting of Doppler frequency offset information.

[0398] Optionally, the device further includes:

[0399] The fifth transmitting module is used to send the first indication information to the terminal via Radio Resource Control (RRC) signaling;

[0400] The first indication information is used to indicate whether to report Doppler frequency offset information.

[0401] It should be noted that the embodiments of this application are devices that correspond one-to-one with the method embodiments applied to network-side devices described above. All implementation methods in the above method embodiments are applicable to this device embodiment and can achieve the same technical effect.

[0402] Preferably, this application embodiment also provides a network-side device, including a processor, a memory, and a program or instructions stored in the memory and executable on the processor. When the program or instructions are executed by the processor, they implement various processes of the Doppler frequency offset reporting method embodiment applied to the network-side device and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0403] This application also provides a readable storage medium on which a program or instruction is stored. When the program or instruction is executed by a processor, it implements various processes of the Doppler frequency offset reporting method embodiment applied to the network-side device side and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0404] The computer-readable storage medium mentioned above includes, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0405] This application embodiment also provides a network-side device, including a processor and a communication interface, wherein the communication interface is used to receive Doppler frequency offset reporting information sent by a terminal;

[0406] The Doppler frequency offset reporting information is used to indicate the Doppler frequency offset information corresponding to at least one TRP measured by the terminal.

[0407] This network-side device embodiment corresponds to the above-described network-side device method embodiment. All implementation processes and methods of the above-described method embodiment can be applied to this network-side device embodiment and can achieve the same technical effect.

[0408] Specifically, embodiments of this application also provide a network-side device. For example... Figure 7 As shown, the network-side device 700 includes an antenna 71, a radio frequency (RF) device 72, and a baseband device 73. The antenna 71 is connected to the RF device 72. In the uplink direction, the RF device 72 receives information through the antenna 71 and transmits the received information to the baseband device 73 for processing. In the downlink direction, the baseband device 73 processes the information to be transmitted and sends it to the RF device 72. The RF device 72 processes the received information and transmits it through the antenna 71.

[0409] The aforementioned frequency band processing device can be located in the baseband device 73. The method executed by the network-side device in the above embodiments can be implemented in the baseband device 73, which includes a processor 74 and a memory 75.

[0410] The baseband device 73 may include, for example, at least one baseband board on which multiple chips are disposed, such as... Figure 7 As shown, one of the chips, for example, is a processor 74, which is connected to a memory 75 to call the program in the memory 75 and execute the network-side device operations shown in the above method embodiments.

[0411] The baseband device 73 may also include a network interface 76 for exchanging information with the radio frequency device 72, such as a common public radio interface (CPRI).

[0412] Specifically, the network-side device in this embodiment of the invention further includes: instructions or programs stored in memory 75 and executable on processor 74, wherein processor 74 calls the instructions or programs in memory 75 to execute. Figure 6 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0413] Optional, such as Figure 8 As shown, this application embodiment also provides a communication device 800, including a processor 801, a memory 802, and a program or instructions stored in the memory 802 and executable on the processor 801. For example, when the communication device 800 is a terminal, the program or instructions executed by the processor 801 implement the various processes of the above-described Doppler frequency offset reporting method embodiment applied to the terminal side, and achieve the same technical effect. When the communication device 800 is a network-side device, the program or instructions executed by the processor 801 implement the various processes of the above-described Doppler frequency offset reporting embodiment applied to the network-side device, and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0414] The terminal involved in the embodiments of this application can be a device that provides voice and / or data connectivity to a user, a handheld device with wireless connectivity, or other processing devices connected to a wireless modem. The name of the terminal device may differ in different systems; for example, in a 5G system, the terminal device can be called a User Equipment (UE). The wireless terminal device can communicate with one or more core networks (CNs) via a Radio Access Network (RAN). The wireless terminal device can be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device, for example, a portable, pocket-sized, handheld, computer-embedded, or vehicle-mounted mobile device. These exchange voice and / or data with the radio access network. Examples include Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). Wireless terminal equipment can also be referred to as a system, subscriber unit, subscriber station, mobile station, mobile station, remote station, access point, remote terminal, access terminal, user terminal, user agent, or user device, but this application does not limit the terminology.

[0415] The network-side equipment involved in the embodiments of this application can be a base station (BTS) in Global System for Mobile communication (GSM) or Code Division Multiple Access (CDMA), a base station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), an evolved Node B (eNB or eNodeB) in LTE, a relay station or access point, or a base station in a future 5G network, etc., and is not limited thereto.

[0416] Network-side devices and terminals can each use one or more antennas for Multiple-Input Multiple-Output (MIMO) transmission. MIMO transmission can be Single-User MIMO (SU-MIMO) or Multiple-User MIMO (MU-MIMO). Depending on the configuration and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, and can also be diversity transmission, pre-coding transmission, or beamforming transmission, etc.

[0417] This application embodiment also provides a chip, which 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 various processes of the above-described Doppler frequency offset reporting method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0418] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0419] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0420] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0421] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A Doppler frequency offset reporting method, characterized in that, include: The terminal receives first configuration information sent by the network-side device, and the terminal performs Doppler frequency offset measurement corresponding to at least one Transmit / Receive Point (TRP) based on the first configuration information. Based on the results of the Doppler frequency offset measurement, the terminal sends Doppler frequency offset reporting information to the network-side device; The Doppler frequency offset reporting information is used to indicate the Doppler frequency offset information corresponding to at least one TRP measured by the terminal; The first configuration information is used to indicate the target measurement resource associated with the Doppler frequency offset reporting, and the target measurement resource is used for the Doppler frequency offset measurement; the first configuration information includes: The quasi-co-located QCL reference source corresponding to the second measurement resource set in the CSI resource configuration; wherein, the QCL reference source is the target measurement resource; The second measurement resource set can be divided into multiple measurement resource subsets, and each resource in each of the measurement resource subsets is associated with a target resource set as a QCL reference source. The second measurement resource set is a non-zero power channel state information reference signal (NZP-CSI-RS) resource set. The target measurement resources include at least one set of target resources.

2. The method according to claim 1, characterized in that, The target measurement resources include at least one target resource set, and the target resource set includes at least one of the following: Tracking Reference Signal (TRS) resource set; Synchronization signal and physical broadcast channel block (SSB) burst set.

3. The method according to claim 1, characterized in that, The first configuration information also includes at least one of the following: Target measurement resources in Channel State Information (CSI) resource configuration; The first parameter indicates the binding relationship between the first measurement resource set and the target measurement resource in the CSI resource configuration.

4. The method according to claim 3, characterized in that, The first measurement resource set can be divided into multiple measurement resource subsets, and each resource in each measurement resource subset is associated with a target resource set.

5. The method according to claim 1, characterized in that, Sending Doppler frequency offset reporting information to the network-side device includes: The terminal receives the second configuration information sent by the network-side device; Based on the second configuration information, Doppler frequency offset reporting information is sent to the network-side device.

6. The method according to claim 5, characterized in that, The second configuration information is used to indicate at least one of the following: Configuration of the reporting volume of CSI reports associated with Doppler frequency offset information reporting; The timing configuration for CSI reporting associated with Doppler frequency offset information reporting.

7. The method according to claim 6, characterized in that, The reporting volume configuration associated with the Doppler frequency offset information reporting and the CSI reporting is used to indicate at least one of the following: The terminal reports independent Doppler frequency offset information; The terminal reports Doppler frequency offset information and first CSI reporting information. The first CSI reporting information includes at least one of the following: CSI-RS resource indicator (CRI), precoding matrix indicator (PMI), rank indicator (RI), channel quality indicator (CQI), layer indicator (LI), reference signal measurement power (RSRP), and signal-to-interference-plus-noise ratio (SINR).

8. The method according to claim 7, characterized in that, The Doppler frequency offset information includes at least one of the following forms: Doppler frequency offset; At least one difference between the Doppler frequency offset and the reference value; The absolute value of at least one difference between the Doppler frequency offset and the reference value; The reference value is one of the Doppler frequency offset values.

9. The method according to claim 8, characterized in that, When reporting the Doppler frequency offset value, the terminal reports at least one of the following: Report the differential quantization results of the Doppler frequency offset; Report the positive or negative value of the Doppler frequency offset and the quantization results of the absolute value of the Doppler frequency offset; The report includes the sign of the first target Doppler frequency offset value and the differential quantization result of the Doppler frequency offset value, wherein the first target Doppler frequency offset value is the differential calculation benchmark of the differential quantization.

10. The method according to claim 9, characterized in that, The differential calculation benchmark includes one of the following: The one with the largest absolute value among the Doppler frequency offset values; The smallest absolute value among the Doppler frequency offset values; The average value of the Doppler frequency offset.

11. The method according to claim 8, characterized in that, The reference value is the Doppler frequency offset value measured by the target resource set that provides a frequency offset QCL reference in the Transmission Configuration Indication (TCI) state indicated by the network-side device.

12. The method according to claim 8, characterized in that, The first reference information corresponding to the reference value is configured to the terminal by the network-side device through RRC signaling, and the first reference information is used to determine the reference value.

13. The method according to claim 8, characterized in that, The Doppler frequency offset reporting information includes first identification information, which is used to indicate second reference information corresponding to the reference value for obtaining the Doppler frequency offset value, and the second reference information is used to determine the reference value.

14. The method according to claim 8, characterized in that, When reporting the absolute value of at least one difference between the Doppler frequency offset value and a reference value, the method further includes: The report indicates whether the difference between the reported Doppler frequency offset value and the reference value is positive or negative.

15. The method according to claim 8, characterized in that, Also includes: The device receives a first reporting indication message sent by a network-side device. The first reporting indication message is used to indicate the switching of the Doppler frequency offset information reporting.

16. The method according to claim 6, characterized in that, The reporting timing configuration includes at least one of the following: Periodic reporting; Semi-continuous reporting; Non-periodic reporting.

17. The method according to claim 7, characterized in that, When the reporting amount configuration of the CSI reporting associated with the Doppler frequency offset information reporting instructs the terminal to report Doppler frequency offset information and first CSI reporting information, it further includes: The first reporting cycle for receiving Doppler frequency offset reporting information sent by network-side devices; The first reporting period includes at least one of the following: Periodic values; The relationship between the reporting period of Doppler frequency offset information and the reporting period of the first CSI information.

18. The method according to claim 1, characterized in that, Also includes: Send terminal capability information to network-side devices; The terminal capability information is used to indicate whether the terminal supports the reporting of Doppler frequency offset information.

19. The method according to claim 1, characterized in that, Also includes: Receive the first indication information sent by the network-side device via Radio Resource Control (RRC) signaling; The first indication information is used to indicate whether to report Doppler frequency offset information.

20. A Doppler frequency offset reporting method, characterized in that, include: The network-side device sends first configuration information to the terminal. The first configuration information is used to instruct the target measurement resource associated with the Doppler frequency offset reporting. The target measurement resource is used for Doppler frequency offset measurement. Network-side equipment receives Doppler frequency offset reporting information sent by the terminal; The Doppler frequency offset reporting information is used to indicate the Doppler frequency offset information corresponding to at least one transmit / receive point (TRP) measured by the terminal. The first configuration information includes: The quasi-co-located QCL reference source corresponding to the second measurement resource set in the CSI resource configuration; wherein, the QCL reference source is the target measurement resource; The second measurement resource set can be divided into multiple measurement resource subsets, and each resource in each of the measurement resource subsets is associated with a target resource set as a QCL reference source. The second measurement resource set is a non-zero power channel state information reference signal (NZP-CSI-RS) resource set. The target measurement resources include at least one set of target resources.

21. The method according to claim 20, characterized in that, The target measurement resources include at least one target resource set, and the target resource set includes at least one of the following: Tracking Reference Signal (TRS) resource set; Synchronization signal and physical broadcast channel block (SSB) burst set.

22. The method according to claim 20, characterized in that, The first configuration information also includes at least one of the following: Target measurement resources in Channel State Information (CSI) resource configuration; The first parameter indicates the binding relationship between the first measurement resource set and the target measurement resource in the CSI resource configuration.

23. The method according to claim 22, characterized in that, The first measurement resource set can be divided into multiple measurement resource subsets, and each resource in each measurement resource subset is associated with a target resource set.

24. The method according to claim 20, characterized in that, The Doppler frequency offset reporting information sent by the receiving terminal includes: Send the second configuration information to the terminal; The receiving terminal sends Doppler frequency offset reporting information based on the second configuration information.

25. The method according to claim 24, characterized in that, The second configuration information is used to indicate at least one of the following: Configuration of the reporting volume of CSI reports associated with Doppler frequency offset information reporting; The timing configuration for CSI reporting associated with Doppler frequency offset information reporting.

26. The method according to claim 25, characterized in that, The reporting volume configuration associated with the Doppler frequency offset information reporting and the CSI reporting is used to indicate at least one of the following: The terminal reports independent Doppler frequency offset information; The terminal reports Doppler frequency offset information and first CSI reporting information. The first CSI reporting information includes at least one of the following: CSI-RS resource indicator (CRI), precoding matrix indicator (PMI), rank indicator (RI), channel quality indicator (CQI), layer indicator (LI), reference signal measurement power (RSRP), and signal-to-interference-plus-noise ratio (SINR).

27. The method according to claim 26, characterized in that, The Doppler frequency offset information includes at least one of the following forms: Doppler frequency offset; At least one difference between the Doppler frequency offset and the reference value; The absolute value of at least one difference between the Doppler frequency offset and the reference value; The reference value is one of the Doppler frequency offset values.

28. The method according to claim 27, characterized in that, When receiving a Doppler frequency offset value, the network-side device receives at least one of the following: Differential quantization results of received Doppler frequency offset values; The quantization results of the positive and negative values ​​of the received Doppler frequency offset and the absolute value of the Doppler frequency offset; The system receives the sign of the first target Doppler frequency offset value and the differential quantization result of the Doppler frequency offset value, wherein the first target Doppler frequency offset value is the differential calculation benchmark of the differential quantization.

29. The method according to claim 28, characterized in that, The differential calculation benchmark includes one of the following: The one with the largest absolute value among the Doppler frequency offset values; The smallest absolute value among the Doppler frequency offset values; The average value of the Doppler frequency offset.

30. The method according to claim 27, characterized in that, The reference value is the Doppler frequency offset value measured by the target resource set that provides a frequency offset QCL reference in the Transmission Configuration Indication (TCI) state indicated by the network-side device for the terminal.

31. The method according to claim 27, characterized in that, The first reference information corresponding to the reference value is configured to the terminal via RRC signaling, and the first reference information is used to determine the reference value.

32. The method according to claim 27, characterized in that, The Doppler frequency offset reporting information includes first identification information, which is used to indicate second reference information corresponding to the reference value for obtaining the Doppler frequency offset value, and the second reference information is used to determine the reference value.

33. The method according to claim 27, characterized in that, The method further includes, upon receiving the absolute value of at least one difference between the Doppler frequency offset value and a reference value: The sign of the difference between the Doppler frequency offset value and the reference value is received.

34. The method according to claim 27, characterized in that, Also includes: Send a first reporting instruction to the terminal, the first reporting instruction being used to instruct the switching of the Doppler frequency offset information reporting.

35. The method according to claim 25, characterized in that, The reporting timing configuration includes at least one of the following: Periodic reporting; Semi-continuous reporting; Non-periodic reporting.

36. The method according to claim 26, characterized in that, When the reporting amount configuration of the CSI reporting associated with the Doppler frequency offset information reporting instructs the terminal to report Doppler frequency offset information and first CSI reporting information, it further includes: The first reporting cycle for sending Doppler frequency offset reporting information to the terminal; The first reporting period includes at least one of the following: Periodic values; The relationship between the reporting period of Doppler frequency offset information and the reporting period of the first CSI information.

37. The method according to claim 20, characterized in that, Also includes: Receive terminal capability information sent by the receiving terminal; The terminal capability information is used to indicate whether the terminal supports the reporting of Doppler frequency offset information.

38. The method according to claim 20, characterized in that, Also includes: The first indication information is sent to the terminal via Radio Resource Control (RRC) signaling; The first indication information is used to indicate whether to report Doppler frequency offset information.

39. A Doppler frequency offset reporting device, characterized in that, include: The measurement module is used to receive first configuration information sent by the network-side device and perform Doppler frequency offset measurement corresponding to at least one transmit / receive point (TRP) based on the first configuration information. The first reporting module is used to send Doppler frequency offset reporting information to the network-side device based on the result of the Doppler frequency offset measurement. The Doppler frequency offset reporting information is used to indicate the Doppler frequency offset information corresponding to at least one TRP measured by the terminal; The first configuration information is used to indicate the target measurement resource associated with the Doppler frequency offset reporting, and the target measurement resource is used for the Doppler frequency offset measurement; the first configuration information includes: The quasi-co-located QCL reference source corresponding to the second measurement resource set in the CSI resource configuration; wherein, the QCL reference source is the target measurement resource; The second measurement resource set can be divided into multiple measurement resource subsets, and each resource in each of the measurement resource subsets is associated with a target resource set as a QCL reference source. The second measurement resource set is a non-zero power channel state information reference signal (NZP-CSI-RS) resource set. The target measurement resources include at least one set of target resources.

40. The apparatus according to claim 39, characterized in that, The first configuration information also includes at least one of the following: Target measurement resources in Channel State Information (CSI) resource configuration; The first parameter indicates the binding relationship between the first measurement resource set and the target measurement resource in the CSI resource configuration.

41. A terminal, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the Doppler frequency offset reporting method as described in any one of claims 1 to 19.

42. A Doppler frequency offset reporting device, characterized in that, include: The second sending module is used to send first configuration information to the terminal. The first configuration information is used to indicate the target measurement resource associated with the Doppler frequency offset reporting. The target measurement resource is used for Doppler frequency offset measurement. The first receiving module is used to receive Doppler frequency offset reporting information sent by the terminal; The Doppler frequency offset reporting information is used to indicate the Doppler frequency offset information corresponding to at least one transmit / receive point (TRP) measured by the terminal. The first configuration information includes: The quasi-co-located QCL reference source corresponding to the second measurement resource set in the CSI resource configuration; wherein, the QCL reference source is the target measurement resource; The second measurement resource set can be divided into multiple measurement resource subsets, and each resource in each of the measurement resource subsets is associated with a target resource set as a QCL reference source. The second measurement resource set is a non-zero power channel state information reference signal (NZP-CSI-RS) resource set. The target measurement resources include at least one set of target resources.

43. The apparatus according to claim 42, characterized in that, The first configuration information also includes at least one of the following: Target measurement resources in Channel State Information (CSI) resource configuration; The first parameter indicates the binding relationship between the first measurement resource set and the target measurement resource in the CSI resource configuration.

44. A network-side device, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the Doppler frequency offset reporting method as described in any one of claims 20 to 38.

45. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the Doppler frequency offset reporting method as described in any one of claims 1-38.

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