Measurement and reporting methods and equipment

Abstract

This invention provides a measurement reporting method and device. The measurement reporting method includes: receiving one or more first resource sets sent by a network-side device, wherein the first resource sets are TRS resource sets or CSI resource sets; when multiple first resource sets are received from the network-side device, measuring the resources in the multiple first resource sets to obtain measurement quantities; wherein, in the multiple first resource sets, some resources have the same QCL parameters, the same associated index values, the same corresponding resource subgroups, or different corresponding time resources; and some resources have different QCL parameters, different associated index values, different corresponding resource subgroups, or the same corresponding time resources; reporting the measurement quantities to the network-side device; wherein the measurement quantities include at least one of the following: frequency difference, delay difference, phase difference, and TDCP amplitude; when only one first resource set is received from the network-side device, measuring at least one group of resources in the first resource set to obtain measurement quantities; and reporting the measurement quantities to the network-side device, wherein the measurement quantities include PMI.

Description

Technical Field

[0001] This invention belongs to the field of communication technology, and in particular relates to a measurement reporting method and device. Prior Technology

[0002] Currently, in New Radio (NR) systems employing Coherent Joint Transmission (CJT), to mitigate the impact of time synchronization errors, frequency synchronization errors, or reciprocity errors on CJT transmission, a measurement reporting method based on the Tracking Reference Signal (TRS) can be used. This method relies on user equipment (UE) reporting to assist in error elimination. However, the TRS-based Time Domain Channel Properties (TDCP) measurement reporting method in related technologies cannot be directly applied because TDCP is only used for measurement reporting at a single Transmission Reception Point (TRP) and is not suitable for eliminating time-frequency synchronization errors or reciprocity errors between TRPs. Furthermore, in type II Doppler codebook-based measurement reporting, the network-side device configures a measurement resource set for the terminal to perform Precoding Matrix Index (PMI) measurement reporting. In this scenario, if the network-side device configures more measurement resource ports for the terminal, the measurement reporting method based on Channel State Information Reference Signal (CSI-RS) suffers from time-frequency synchronization errors. In summary, there is currently no corresponding solution for how to perform measurement reporting based on reference signals to reduce or eliminate the impact of time-frequency synchronization errors or reciprocity errors. Summary of the Invention

[0003] The purpose of this invention is to provide a measurement reporting method and device to solve the problem of how to perform measurement reporting based on reference signals in order to reduce or eliminate the influence of time-frequency synchronization error or reciprocity error.

[0004] To achieve the above objectives, in a first aspect, embodiments of the present invention provide a measurement reporting method applied to a terminal, the measurement reporting method comprising: Receive one or more first resource sets sent by the network-side device, wherein the first resource set is a Tracking Reference Signal (TRS) resource set or a Channel Status Information (CSI) resource set; When multiple first resource sets are received from the network-side device, the resources in these multiple first resource sets are measured to obtain a measurement quantity. Among these multiple first resource sets, some resources have the same QCL parameters, the same associated index value, the same corresponding resource subgroup, or different corresponding time resources; others have different QCL parameters, different associated index values, different corresponding resource subgroups, or the same corresponding time resources. The measurement quantity is reported to the network-side device. The measurement quantity includes at least one of the following: frequency difference, delay difference, phase difference, and TDCP amplitude. If the first resource set received from the network-side device is one, at least one group of resources in the first resource set is measured to obtain a measurement quantity; the measurement quantity is reported to the network-side device, and the measurement quantity includes at least the precoding matrix indicator (PMI).

[0005] Secondly, embodiments of the present invention also provide a measurement reporting method, applied to network-side equipment, the measurement reporting method comprising: One or more first resource sets for measurement are sent to the terminal. These first resource sets are either Tracking Reference Signal (TRS) resource sets or Channel Status Information (CSI) resource sets. When multiple first resource sets are sent to the terminal, some resources in these sets have the same QCL parameters, the same associated index values, the same corresponding resource subgroups, or different corresponding time resources; others have different QCL parameters, different associated index values, different corresponding resource subgroups, or the same corresponding time resources. Alternatively, when only one first resource set is sent to the terminal, at least one set of resources in this first resource set is used for measurement. Receive the measurement quantities reported by the terminal; wherein the measurement quantities include at least one of the following: frequency difference, time delay difference, phase difference, TDCP amplitude and precoding matrix indicator PMI.

[0006] Thirdly, embodiments of the present invention also provide a terminal, including: a memory, a transceiver, and a processor: the memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor, and the processor performs the following operations: Receive one or more first resource sets sent by the network-side device, wherein the first resource set is a Tracking Reference Signal (TRS) resource set or a Channel Status Information (CSI) resource set; When multiple first resource sets are received from the network-side device, the resources in these multiple first resource sets are measured to obtain a measurement quantity. Among these multiple first resource sets, some resources have the same QCL parameters, the same associated index value, the same corresponding resource subgroup, or different corresponding time resources; others have different QCL parameters, different associated index values, different corresponding resource subgroups, or the same corresponding time resources. The measurement quantity is reported to the network-side device. The measurement quantity includes at least one of the following: frequency difference, delay difference, phase difference, and TDCP amplitude. If the first resource set received from the network-side device is one, at least one group of resources in the first resource set is measured to obtain a measurement quantity; the measurement quantity is reported to the network-side device, and the measurement quantity includes at least the precoding matrix indicator (PMI).

[0007] Fourthly, embodiments of the present invention also provide a measurement reporting device, comprising: The first receiving unit is configured to receive one or more first resource sets sent by the network-side device, wherein the first resource set is a Tracking Reference Signal (TRS) resource set or a Channel Status Information (CSI) resource set; The first measurement unit is configured to measure the resources in the multiple first resource sets sent by the network-side device to obtain measurement quantities when multiple first resource sets are received; wherein, in the multiple first resource sets, some resources have the same QCL parameters, the same associated index values, the same corresponding resource subgroups, or different corresponding time resources; and some resources have different QCL parameters, different associated index values, different corresponding resource subgroups, or the same corresponding time resources. The first reporting unit is used to report the measurement to the network-side device; wherein the measurement includes at least one of the following: frequency difference, delay difference, phase difference, and TDCP amplitude; or, The second measurement unit is configured to, when receiving a first resource set sent by the network-side device, measure each resource group of at least one resource group in the first resource set to obtain a measurement quantity; The second reporting unit is used to report the measurement to the network-side device, and the measurement includes at least the precoding matrix indicator (PMI).

[0008] Fifthly, embodiments of the present invention also provide a network-side device, including: a memory, a transceiver, and a processor: the memory is used to store computer programs; the transceiver is used to send and receive data under the control of the processor, and the processor performs the following operations: One or more first resource sets for measurement are sent to the terminal. These first resource sets are either Tracking Reference Signal (TRS) resource sets or Channel Status Information (CSI) resource sets. When multiple first resource sets are sent to the terminal, some resources in these sets have the same QCL parameters, the same associated index values, the same corresponding resource subgroups, or different corresponding time resources; others have different QCL parameters, different associated index values, different corresponding resource subgroups, or the same corresponding time resources. Alternatively, when only one first resource set is sent to the terminal, at least one set of resources in this first resource set is used for measurement. Receive the measurement quantities reported by the terminal; wherein the measurement quantities include at least one of the following: frequency difference, time delay difference, phase difference, TDCP amplitude and precoding matrix indicator PMI.

[0009] Sixthly, embodiments of the present invention also provide a measurement reporting device, comprising: The first transmitting unit is configured to transmit one or more first resource sets for measurement to the terminal. The first resource sets are either Tracking Reference Signal (TRS) resource sets or Channel Status Information (CSI) resource sets. When multiple first resource sets are transmitted to the terminal, some resources in these sets have the same QCL parameters, the same associated index values, the same corresponding resource subgroups, or different corresponding time resources; other resources have different QCL parameters, different associated index values, different corresponding resource subgroups, or the same corresponding time resources. Alternatively, when only one first resource set is transmitted to the terminal, at least one set of resources in that first resource set is used for measurement. The second receiving unit is used to receive the measurement quantities reported by the terminal; wherein the measurement quantities include at least one of the following: frequency difference, time delay difference, phase difference, TDCP amplitude and precoding matrix indicator PMI.

[0010] In a seventh aspect, embodiments of the present invention also provide a processor-readable storage medium storing a computer program for causing the processor to perform the steps of the measurement reporting method described in the first aspect, or to perform the steps of the measurement reporting method described in the second aspect.

[0011] Eighthly, embodiments of the present invention also provide a computer program product, including computer instructions, which, when executed by a processor, implement the steps in the measurement reporting method described in the first aspect, or implement the steps in the measurement reporting method described in the second aspect.

[0012] The above-described technical solution of the present invention has at least the following beneficial effects: In the above technical solution of this invention embodiment, one or more first resource sets are received from a network-side device. These first resource sets are either Tracking Reference Signal (TRS) resource sets or Channel Status Information (CSI) resource sets. Then, if multiple first resource sets are received from the network-side device, the resources in these multiple first resource sets are measured to obtain measurement quantities. Among these multiple first resource sets, some resources have the same QCL parameters, the same associated index values, the same corresponding resource subgroups, or different corresponding time resources; others have different QCL parameters, different associated index values, different corresponding resource subgroups, or the same corresponding time resources. This determines the correspondence between the first resource set and the TRP, or the correspondence between the first resource set and different times. The system enables measurement reporting between multiple TRPs and measurement reporting at different times within the same TRP. Finally, it reports the measurement quantity to the network-side device. This measurement quantity includes at least one of the following: frequency difference, delay difference, phase difference, and TDCP amplitude. Alternatively, if the network-side device sends a first resource set, it measures at least one group of resources within that first resource set to obtain the measurement quantity. This determines the correspondence between each group of resources in the first resource set and the antenna port, facilitating measurement reporting from more ports. Finally, the system reports the measurement quantity to the network-side device, which includes at least a Precoding Matrix Indicator (PMI). Thus, since the measurement quantity reported by the terminal includes measurements from multiple TRPs, the network-side device is assisted in reducing or eliminating the impact of time-frequency synchronization errors or reciprocity errors based on the reported measurement quantity. Simple Explanation of the Diagram

[0013] Figure 1 is a schematic flowchart of one embodiment of the measurement reporting method of the present invention; Figure 2 is a schematic diagram corresponding to one of the embodiments of the present invention; Figure 3 is a second schematic diagram corresponding to Embodiment 1 of the present invention; Figure 4 is one of the schematic diagrams corresponding to Embodiment 2 of the present invention; Figure 5 is a schematic diagram of Embodiment 2 of the present invention; Figure 6 is a schematic diagram corresponding to Embodiment 3 of the present invention; Figure 7 is one of the schematic diagrams corresponding to Embodiment 4 of the present invention; Figure 8 is a second schematic diagram corresponding to Embodiment 4 of the present invention; Figure 9 is a schematic diagram of embodiment four of the present invention; Figure 10 is a schematic diagram of embodiment four of the present invention; Figure 11 is a schematic diagram corresponding to Embodiment 8 of the present invention; Figure 12 is a second schematic diagram corresponding to Embodiment 8 of the present invention; Figure 13 is a schematic diagram corresponding to Embodiment 9 of the present invention; Figure 14 is a second schematic flowchart of the measurement reporting method according to an embodiment of the present invention; Figure 15 is a structural block diagram of the terminal according to an embodiment of the present invention; Figure 16 is a schematic diagram of one of the modules of the measurement and reporting device according to an embodiment of the present invention; Figure 17 is a structural block diagram of the network-side device according to an embodiment of the present invention; Figure 18 is a second schematic diagram of the module of the measurement and reporting device according to an embodiment of the present invention. Implementation

[0014] In this embodiment of the invention, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0015] In the embodiments of this invention, the term "multiple" refers to two or more, and other quantifiers are similar.

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making progressive improvements are within the scope of protection of the present invention.

[0017] To facilitate understanding of the present invention, relevant content of the present invention will be introduced first.

[0018] In NR systems, TRS is used for time-frequency synchronization tracking. When reporting measurements based on TRS, one or more TRS resource sets can be associated with a reporting setting, each containing multiple TRS resources. In this case, the reporting quantity can only be configured as 'none' or 'tdcp', where TDCP reporting is used to address the impact of Doppler frequency offset on transmission. When performing TDCP reporting, the reporting setting is associated with an aperiodic or periodic resource setting, which can contain 1, 2, or 3 TRS resource sets. The UE assumes that all TRS resources in multiple TRS resource sets have the same QCL-Type A / C parameter, and the QCL-Type D parameter (if applicable).

[0019] The measurement reporting method based on TDCP is as follows: TRS Configuration: The network side configures a reporting setting for the UE for TDCP measurement reporting. The reporting device is associated with a Channel State Information (CSI) resource setting, which contains N TRS resource sets, where N=1, 2, or 3. For periodic CSI resource settings, the UE assumes that all TRS resources in the multiple TRS resource sets have the same QCL-Type A / C parameter, as well as the QCL-Type D parameter (if applicable).

[0020] The TDCP reporting method is as follows: The network side configures Y delay values ​​for the UE, with a maximum of four delay values. The UE reports the amplitude corresponding to the Y configured delay values ​​(also known as TDCP amplitude). In some embodiments, the UE reports the TDCP phase.

[0021] Specifically, the amplitude quantization method is as follows: Quantization is performed using 4 bits, and the quantization alphabet is: Where q = 0, 1, ..., 2Q-1, N = 2Q, Q = 4, .

[0022] When the number of delays Y=1, only the normalized TDCP amplitude of wideband quantization is reported; When the number of delays Y>1, report the normalized amplitude of the wideband quantization and the wideband TDCP phase for each delay; TDCP phase quantization method (4-bit uniform phase quantization): using the formula Quantification is performed, where:

[0023] When using CJT transmission, to reduce the impact of time synchronization errors, frequency synchronization errors, or reciprocity errors on CJT transmission, a TRS-based measurement reporting method can be used, with UE reporting assisting in error elimination. However, the TDCP-based measurement reporting method in related technologies cannot be directly applied because TDCP is only used for measurement reporting under a single TRP.

[0024] Furthermore, in measurement reporting based on the Type-II Doppler codebook (i.e., the Type-II codebook for predicted PMI, where the predicted precoding matrix indicates the Type-II codebook), the network-side equipment configures a set of measurement resources for the terminal to report PMI measurements. When the temporal transmission characteristics of the measurement resource set are periodic or semi-persistent, the measurement resource set contains only one measurement resource; when the temporal transmission characteristics of the measurement resource set are aperiodic, the measurement resource set contains K∈{4,8,12} measurement resources. These K measurement resources can correspond to different times.

[0025] If the network-side equipment configures more measurement resource ports for the terminal, such as a single TRP using up to 128 ports (e.g., using four 32-port CSI-RS resources to construct a 128-port CSI-RS resource), or multiple TRPs jointly using 128 or 256 ports, the CSI-RS-based measurement reporting method has a time-frequency synchronization error problem.

[0026] In summary, there is still no corresponding solution for how to perform measurement reporting based on reference signals to eliminate the effects of time-frequency synchronization errors or reciprocity errors.

[0027] To address the aforementioned technical problems, embodiments of the present invention provide a measurement reporting method and device. The method and device are based on the same application concept. Since the methods and devices solve problems in similar principles, their implementations can be mutually referenced, and repeated details will not be elaborated further.

[0028] Figure 1 shows a flowchart of the measurement reporting method provided in an embodiment of the present invention. This measurement reporting method is applied to a terminal, i.e., executed by the terminal. Specifically, the measurement reporting method includes: Step 101: Receive one or more first resource sets sent by the network-side device, wherein the first resource set is a Tracking Reference Signal (TRS) resource set or a Channel Status Information (CSI) resource set; Here, the network-side device will configure one or more first resource sets for the terminal and send them to the terminal.

[0029] The TRS resource set includes multiple TRS resources; the CSI resource set includes multiple CSI-RS resources.

[0030] Step 102: If multiple first resource sets are received from the network-side device, the resources in the multiple first resource sets are measured to obtain a measurement quantity; wherein, in the multiple first resource sets, some resources have the same QCL parameters, the same associated index value, the same corresponding resource subgroup, or different corresponding time resources; some resources have different QCL parameters, different associated index values, different corresponding resource subgroups, or the same corresponding time resources; the measurement quantity is reported to the network-side device; wherein, the measurement quantity includes at least one of the following: frequency difference, delay difference, phase difference, and TDCP amplitude.

[0031] Here, time resources can be time slots, symbols, etc.

[0032] It should be understood that among the multiple first resource sets, some resources have the same QCL parameters, the same associated index values, the same corresponding resource subgroups, or different corresponding time resources. Here, "some resources" refers to a portion of the first resource sets, and all resources within these first resource sets; and / or, it refers to a portion of the resources within a certain first resource set.

[0033] In the multiple first resource sets, some resources have different QCL parameters, different associated index values, different corresponding resource subgroups, or the same corresponding time resources. Here, "some resources" refers to a portion of the first resource sets. These first resource sets have different associated index values, different corresponding resource subgroups, the same corresponding time resources, or different QCL parameters. And / or, it refers to a portion of the resources within a certain first resource set.

[0034] In these multiple first resource sets, some resources have the same QCL parameters, the same associated index values, the same corresponding resource subgroups, or different corresponding time resources; others have different QCL parameters, different associated index values, different corresponding resource subgroups, or the same corresponding time resources. The purpose is to determine the correspondence between the first resource sets and TRPs, or to determine the correspondence between the first resource sets and different times, so as to facilitate measurement reporting between multiple TRPs and measurement reporting of the same TRP at different times. For example, some first resource sets correspond to the same TRP (e.g., based on QCL parameters, several first resource sets with the same QCL parameters correspond to the same TRP; or based on index values, first resource sets with the same associated index values ​​correspond to the same TRP), while some first resource sets correspond to different TRPs (e.g., based on QCL parameters, several first resource sets with different QCL parameters correspond to different TRPs; or based on index values, first resource sets with different associated index values ​​correspond to different TRPs). For example, some sets of first resources corresponding to the same time resource may correspond to different TRPs, and some sets of first resources corresponding to different time resources may correspond to the same TRP. Of course, the terminal can determine the correspondence with TRP or the correspondence with different times based on one or more of the above conditions.

[0035] It should be noted that the frequency difference can be the frequency difference between different TRPs or the frequency difference of the same TRP at different times; the delay difference can be the delay difference between different TRPs or the delay difference of the same TRP at different times; the phase difference can be the phase difference between different TRPs or the phase difference of the same TRP at different times.

[0036] Among them, the frequency difference or time delay difference can be represented by the first amplitude, that is, the frequency difference is a specific value or amplitude, which is used to characterize the frequency difference or time delay difference.

[0037] Here, the terminal reports measurements to the network-side device, specifically reporting at least one of the following: frequency difference, delay difference, phase difference, and TDCP amplitude. Because the measurements reported by the terminal include those between multiple TRPs, the network-side device can eliminate the effects of time-frequency synchronization errors or reciprocity errors based on these reported measurements. For example, if the reported measurement is the frequency difference or phase difference between different TRPs, frequency synchronization errors can be eliminated; if the reported measurement is the delay difference between different TRPs, time synchronization errors can be eliminated.

[0038] Step 103: If the first resource set sent by the network-side device is one, measure at least one group of resources in the first resource set to obtain a measurement quantity; report the measurement quantity to the network-side device, the measurement quantity including at least the precoding matrix indicator (PMI).

[0039] It should be understood that step 103 corresponds to the scenario in type II Doppler codebook-based measurement reporting where the network-side device configures a set of measurement resources for the terminal to perform PMI measurement reporting. Here, measuring at least one group of resources in the first resource set means measuring each group of resources in the first resource set separately, and obtaining a PMI after measuring each group of resources. By measuring at least one group of resources in the first resource set, the measurement quantity is obtained; thereby determining the correspondence between each group of resources in the first resource set and the antenna port; so as to realize measurement reporting of more ports.

[0040] In some embodiments, the plurality of first resource sets include: No. The first resource set to the first All resources in the first resource set have the same QCL parameter or the first... The first resource set to the first Each of the first resource sets corresponds to a different time resource, where i = 1, 2…K, and N and K are positive integers greater than or equal to 1; and / or, The j-th first resource set, the A first resource set, ... All resources in the j-th first resource set have the same QCL parameter, or the j-th first resource set, ... A first resource set, ... Each of the first resource sets corresponds to a different time resource, where j = 1, 2, ..., K; and / or, The (p-1)K+1th first resource set to the p×Kth first resource set correspond to the same time resource, or all resources within the same first resource set from the (p-1)K+1th to the p×Kth first resource sets have the same QCL parameter. Different first resource sets and resources have different QCL parameters, where p = 1, 2…N; and / or, The q-th first resource set, the (q+N)-th first resource set, ..., the (q+(K-1)N)-th first resource set correspond to the same time resource, or all resources within the same first resource set in the q-th first resource set, the (q+N)-th first resource set, ..., the (q+(K-1)N)-th first resource set have the same QCL parameter. The QCL parameters of resources in different first resource sets are different, where q = 1, 2, ..., N.

[0041] Multiple first resource sets that meet the above conditions are configured by the network-side device. The xth (e.g., (p-1)K+1, q, etc.) first resource set is the xth resource set configured by the network-side device, or determined in ascending order of the configured index value (ID).

[0042] Specifically, based on the limitations of the aforementioned multiple first resource sets, the association between the first resource sets and TRP, or the association between the first resource sets and different times, can be determined.

[0043] To facilitate understanding of the above embodiments, the following description will take the TRS resource set as the first resource set as an example.

[0044] When used for frequency asynchrony elimination, network-side devices can associate a resource setting with a reporting setting, where the resource setting configures K×N TRS resource sets (i.e., CSI-RS resource sets configured with the parameter trs-Info, corresponding to the higher-layer parameter NZP-CSI-RS-ResourceSet), where K represents the number of TRPs and N represents the number of TRS resource sets of a TRP at different times.

[0045] In Example 1, a reporting setting is associated with up to 4N TRS resource sets, where N = 1, 2, or 3. The network-side device first configures the TRS resource sets of a TRP at different times, and then configures multiple TRS resource sets of other TRPs. Following the configuration order of TRS resource sets, for periodic TRS, the network-side equipment configures the first to the Nth TRS resource sets, where all resources in these N TRS resource sets have the same QCL-Type A / C / D parameters; the (N+1)th to the 2Nth TRS resource sets, where all resources in these N TRS resource sets have the same QCL-Type A / C / D parameters; the (2N+1)th to the 3Nth TRS resource sets, where all resources in these N TRS resource sets have the same QCL-Type A / C / D parameters; and the (3N+1)th to the 4Nth TRS resource sets, where all resources in these N TRS resource sets have the same QCL-Type A / C / D parameters. These N TRS resource sets form a group, with all resources within the same group having the same QCL parameters, while the QCL parameters differ between groups. As shown in Figures 2 and 3, where K=4 and N=3.

[0046] During measurement, the UE determines the frequency difference, phase difference, or TDCP value based on multiple TRS resource sets with the same QCL parameters. In other words, the UE performs measurements based on multiple TRS resource sets with the same QCL parameters to obtain the frequency difference, phase difference, or TDCP value.

[0047] In some embodiments, the network-side device configures TRS resource sets for multiple TRPs at the same time interval.

[0048] To ensure that the reference time for frequency offset measurement of each TRP is the same, the network-side device can predict the channel information of multiple TRPs at the same time in the future based on the UE's report. In some embodiments, the q-th TRS resource set, the (q+N)-th TRS resource set, ..., the (q+(K-1)N)-th TRS resource set are sent to the terminal in the same time slot, where q=1, 2...N. As shown in the TRS pattern in Figure 2, TRS set 1 (the first TRS resource set), TRS set 4 (the fourth TRS resource set), TRS set 7 (the seventh TRS resource set), and TRS set 10 (the tenth TRS resource set) are sent to the terminal in the same time slot.

[0049] It should be understood that Figures 2 and 3 correspond to the configuration of the network-side equipment. The first resource set to the first There are N first resource sets. All resources in these N first resource sets have the same QCL parameter. For example, all resources in TRS set 1 (first TRS resource set) to TRS set 3 configured by the network side device for TRP1 (the first TRP) have the same QCL parameter, which is QCL parameter 1.

[0050] Figures 2 and 3 also correspond to the configuration of network-side equipment. The first resource set to the first Each first resource set corresponds to a different time resource. For example, the network-side device configures TRS set 1 (first TRS resource set) to TRS set 3 for TRP1 (the first TRP) and sends them on different time resources (such as time slots).

[0051] Figure 2 also corresponds to the qth first resource set, the q+Nth first resource set, ..., q+(K-1)Nth first resource sets configured by the network-side device, which correspond to the same time resources. For example, the TRS set 1 (the first TRS resource set) configured by the network-side device for TRP1 (the first TRP), the TRS set 4 (the fourth TRS resource set) configured by the network-side device for TRP2 (the second TRP), the TRS set 7 (the seventh TRS resource set) configured by the network-side device for TRP3 (the third TRP), and the TRS set 10 (the tenth TRS resource set) configured by the network-side device for TRP4 (the fourth TRP) are sent on the same time resource (such as a time slot).

[0052] Figures 2 and 3 also correspond to the q-th, q+N-th, ..., q+(K-1)N-th first resource sets configured by the network-side equipment. All resources within the same first resource set have the same QCL parameter. However, the QCL parameters differ between different first resource sets, meaning the QCL parameters corresponding to different first resource sets are different. For example, the network-side equipment configures TRS set 1 (the first TRS resource set) for TRP1 (the first TRP). 1. All resources in TRS set 4 (the 4th TRS resource set) configured by the network-side device for TRP2 (the 2nd TRP) have the same QCL parameter. 2. All resources in TRS set 7 (the 7th TRS resource set) configured by the network-side device for TRP3 (the 3rd TRP) have the same QCL parameter. 3. All resources in TRS set 10 (the 10th TRS resource set) configured by the network-side device for TRP4 (the 4th TRP) have the same QCL parameter.

[0053] Example 2: A reporting setting is associated with up to 3K TRS resource sets, where K=1, 2, 3 or 4. The numbering order of the TRS is different from that in Example 1. The j-th TRS resource set, the ... The first TRS resource set, the first All resources in a TRS resource set have the same QCL parameters, j=1, 2…K, as shown in Figures 4 and 5. Here, in Figures 4 and 5, j=1, 2, 3, 4; K=4.

[0054] In some embodiments, the network-side device configures TRS resource sets for multiple TRPs at the same time interval.

[0055] To ensure that the reference time for frequency offset measurements of each TRP is the same, the network-side device can predict the channel information of multiple TRPs at the same time in the future based on the UE's reports; in some embodiments, the terminal is sent the first... The first resource set to the first There is a first resource set, where i = 1, 2, ..., K. For example, the first TRS resource set to the Nth TRS resource set can be sent in the same time slot, the (N+1)th TRS resource set to the 2Nth TRS resource set can be sent in the same time slot, and the (2N+1)th TRS resource set to the 3Nth TRS resource set can be sent in the same time slot; as shown in the TRS pattern in Figure 4, TRS set 1 (the first TRS resource set), TRS set 2 (the second TRS resource set), TRS set 3 (the third TRS resource set), and TRS set 4 (the fourth TRS resource set) are sent to the terminal in the same time slot.

[0056] It should be understood that Figures 4 and 5 correspond to the network-side device configuration of the j-th first resource set and the j-th first resource set. A first resource set, ... All resources in a first resource set have the same QCL parameter. For example, all resources in TRS set 1 (the first TRS resource set), TRS set 5 (the fifth TRS resource set), and TRS set 9 (the ninth TRS resource set) configured by the network-side device for TRP1 (the first TRP) have the same QCL parameter, which is QCL parameter 1.

[0057] Figures 4 and 5 also correspond to the configuration of the j-th first resource set and the j-th first resource set on the network side device. A first resource set, ... Each first resource set corresponds to a different time resource. For example, the network-side device configures TRS set 1 (the first TRS resource set), TRS set 5 (the fifth TRS resource set), and TRS set 9 (the ninth TRS resource set) for TRP1 (the first TRP) and sends them on different time resources (such as time slots).

[0058] Figure 4 also shows that the first resource sets from the (p-1)K+1th to the p×Kthth first resource sets configured by the network-side equipment correspond to the same time resources. For example, the TRS set 1 (first TRS resource set) configured by the network-side equipment for TRP1 (the first TRP), the TRS set 2 (second TRS resource set) configured by the network-side equipment for TRP2 (the second TRP), the TRS set 3 (third TRS resource set) configured by the network-side equipment for TRP3 (the third TRP), and the TRS set 4 (fourth TRS resource set) configured by the network-side equipment for TRP4 (the fourth TRP) are sent on the same time resource (such as time slot).

[0059] Figures 4 and 5 also correspond to the configuration of network-side devices. All resources within the same first resource set from the (p-1)K+1th to the p×Kth first resource sets have the same QCL parameter. The QCL parameters of resources in different first resource sets are different, that is, the QCL parameters corresponding to different first resource sets are different. For example, all resources in TRS set 1 (the first TRS resource set) configured by the network-side device for TRP1 (the first TRP) have the same QCL parameter 1; all resources in TRS set 2 (the second TRS resource set) configured by the network-side device for TRP2 (the second TRP) have the same QCL parameter 2; all resources in TRS set 3 (the third TRS resource set) configured by the network-side device for TRP3 (the third TRP) have the same QCL parameter 3; and all resources in TRS set 4 (the fourth TRS resource set) configured by the network-side device for TRP4 (the fourth TRP) have the same QCL parameter 4.

[0060] It should be noted that, in addition to the configuration order of the TRS resource sets mentioned above, the correspondence between the TRS resource sets and TRPs or different time periods can also be determined based on the index value of the TRS resource sets. For example, the values ​​of the TRS sets in Figures 2, 3, 4, and 5 can be arranged in ascending order of the index value of the TRS resource sets. For instance, TRS set 1 represents the TRS resource set with the smallest index value among all TRS resource sets associated with a reporting setting, and TRS set 5 represents the fifth TRS resource set among all TRS resource sets associated with a reporting setting, sorted from smallest to largest index value. After determining the association between the TRS resource sets and TRPs or different time periods, the UE will measure the TRS resource sets to measure the frequency difference, phase difference, or TDCP value between multiple time periods of a TRP.

[0061] When used for time asynchrony elimination or reciprocity error elimination, network-side devices can associate a resource setting with a reporting setting, where the resource setting configures K sets of TRS resources, where K represents the number of TRPs.

[0062] Accordingly, in some embodiments: (1) All resources within the same first resource set have the same QCL parameter, while resources in different first resource sets have different QCL parameters; that is, the QCL parameters of resources contained in different first resource sets are different. The following is an illustration through Example 3: Example 3, a reporting setting is associated with a maximum of 4 TRS resource sets.

[0063] In this embodiment, the QCL-Type A / C / D parameters are different for different TRS resource sets, each corresponding to a different TRP, as shown in Figure 6. This can be used for time synchronization error measurement or reciprocity error measurement. In some embodiments, the symbol or subcarrier positions are different in each TRS resource set. This facilitates the use of different beams for transmission by multiple TRPs.

[0064] In this invention, the QCL-Type A / C / D parameter or QCL parameter corresponding to the resource set is also the QCL-Type A / C / D parameter or QCL parameter corresponding to (all) resources within the resource set.

[0065] Referring to Figure 6, the TRS resources within each TRS resource set have the same QCL-Type A / C / D parameters.

[0066] Alternatively, (2) each subset of resources within the first resource set has different QCL parameters; In some embodiments, some resources within each first resource set have different QCL parameters, wherein resources with the same QCL parameter within the same first resource set correspond to the same time resource; or, resources with different QCL parameters correspond to the same time resource within the same first resource set.

[0067] The following example illustrates this: In Example 4, a reporting setting is associated with up to 3 TRS resource sets.

[0068] Each TRS resource set has different QCL-Type A / C / D parameters, meaning that a single TRS resource set supports the transmission of multiple TRPs; the three TRS resource sets transmit in different time slots, which can be used for frequency error or time error elimination.

[0069] Scenario 1: A TRS resource set contains up to 8 TRS resources, occupying 4 or 2 slots. Each slot contains 2 or 4 TRS resources, and the transmission pattern is shown in Figures 7 and 8.

[0070] It should be understood that the resources in the first resource set corresponding to Figure 7 have different QCL parameters. Among them, resources with the same QCL parameter in the same first resource set have the same time resource. For example, TRS resource 1 and TRS resource 2 have the same QCL parameter, which is QCL parameter 1, and are transmitted in the same time slot n.

[0071] Figure 8 shows that resources within the first resource set have different QCL parameters. Within the same first resource set, resources with different QCL parameters exist at the same time. For example, TRS resource 1 and TRS resource 2 have the same QCL parameter, which is QCL parameter 1; TRS resource 3 and TRS resource 4 have the same QCL parameter, which is QCL parameter 2. Furthermore, TRS resource 1, TRS resource 2, TRS resource 3, and TRS resource 4 are transmitted in the same time slot n.

[0072] Scenario 2: A TRS resource set contains at most 4 TRS resources, occupying 4 or 2 slots, and the transmission pattern is shown in Figures 9 and 10.

[0073] In the transmission patterns of Scenarios 1 and 2 above, the TRS resources of each time slot can have different QCL-Type A / C / D parameters, or each TRS resource can have different QCL-Type A / C / D parameters. Here, for a set of TRS resources occupying 4 slots, the TRS resources of the first 2 slots and the TRS resources of the last 2 slots can also have different QCL-Type A / C / D parameters, which will not be listed in detail here.

[0074] Alternatively, (3) the same first resource set is associated with the same index value, and different first resource sets are associated with different index values; Here, the index value is used to characterize the TRP. This is illustrated below with Example 5: Example 5: A reporting setting is associated with up to P TRS resource sets. The same first resource set is associated with the same index value, that is, each TRS resource set is associated with an index value, where the index value is used to represent the TRP, and different index values ​​represent different TRPs.

[0075] When performing measurement reporting, the UE measures TRS resource sets with different index values, determines the delay difference, frequency difference, or phase difference between TRPs, and reports it; the UE measures TRS resource sets with the same index value at different times, determines the frequency difference, phase difference, or TDCP value of the same TRP at different times, and reports it.

[0076] Alternatively, (4) the same first resource set corresponds to the same resource subgroup, or the same resource subgroup corresponds to the same time resource.

[0077] Here, the same first resource set corresponds to the same resource subgroup, that is, each first resource set corresponds to one resource subgroup, and the resource subgroup is used to characterize the TRP. This is illustrated below with Example Six: Example 6: A resource setting explicitly configures K resource subgroups, each resource subgroup corresponding to a TRP (e.g., all TRS resources in a TRS resource subgroup have the same QCL parameter), or a resource setting explicitly configures N resource subgroups, each resource subgroup corresponding to a transmission time (e.g., all TRS resources in a TRS resource subgroup are transmitted within a specific time slot interval). When performing measurement reporting, the UE measures the TRS resources within the resource subgroup, determines the delay difference, frequency difference, or phase difference between TRPs, and reports it; or, the UE measures the TRS resource subgroups at different times, determines the frequency difference, phase difference, or TDCP value of the same TRP at different times, and reports it.

[0078] In some embodiments, in step 102 above, the resources in the plurality of first resource sets are measured to obtain measurement quantities, including the following A and / or B and / or C and / or D: A: Measure resources from multiple first resource sets that have the same QCL parameters, are associated with the same index value, correspond to the same resource subgroup, or correspond to different time resources to obtain the measurement quantity; It should be understood that the resources that meet the above conditions in multiple first resource sets can be resources in several first resource sets, which can correspond to the case where the network-side device configures multiple first resource sets for a TRP. In this case, the measurement quantity is the measurement quantity of the same TRP at different times.

[0079] The resources that meet the above conditions in multiple first resource sets can also be a portion of the resources in a certain first resource set. This corresponds to the scenario where the network-side device configures multiple TRPs in one resource set. In this case, the measurement quantity is the measurement quantity between different TRPs.

[0080] In some embodiments, A specifically includes: Select one or more resources as reference resources from multiple first resource sets that have the same QCL parameters, are associated with the same index value, correspond to the same resource subgroup, or correspond to different time resources; The measurement quantity is obtained by measuring other resources besides the reference resource in the reference resource and multiple first resource sets that have the same QCL parameters, are associated with the same index value, correspond to the same resource subgroup, or correspond to different time resources.

[0081] Here, the measured quantity refers to the quantity between other resources and the reference resource. For example, when the measured quantity is a frequency difference, it specifically refers to the frequency difference between other resources and the reference resource; when the measured quantity is a time delay difference, it specifically refers to the time delay difference between other resources and the reference resource; when the measured quantity is a phase difference, it specifically refers to the phase difference between other resources and the reference resource.

[0082] B: Measure the resources in multiple first resource sets that are associated with the same index value, correspond to the same resource subgroup, or correspond to different time resources to obtain the measurement quantity; It should be understood that the resource set that satisfies the above conditions among multiple first resource sets corresponds to the case where the network-side device configures multiple first resource sets for one TRP. In this case, the measurement quantity is the measurement quantity of the same TRP at different times.

[0083] In some embodiments, B specifically includes: One or more first resource sets are selected as reference resource sets from multiple first resource sets that are associated with the same index value, correspond to the same resource subgroup, or correspond to different time resources; The resources in the reference resource set and the resources in other resource sets of multiple first resource sets that are associated with the same index value, correspond to the same resource subgroup, or correspond to different time resources, are measured to obtain the measurement quantity.

[0084] C: Measure resources from multiple first resource sets that have different QCL parameters, are associated with different index values, correspond to different resource subgroups, or correspond to the same time resource, and obtain the measurement quantity; It should be understood that resources satisfying the above conditions in multiple first resource sets can be defined on a unit basis, such as all resources in each of several first resource sets having the same QCL parameter, but the corresponding QCL parameters differ between different first resource sets. In this case, the measurement quantity is the measurement quantity between different TRPs.

[0085] Resources that meet the above conditions in multiple first resource sets can also be a portion of resources in a certain first resource set. This corresponds to the scenario where the network-side device configures multiple TRPs in one resource set. In this case, the measurement quantity is the measurement quantity between different TRPs.

[0086] In some embodiments, C specifically includes: One or more resources are selected as reference resources from multiple first resource sets that have different QCL parameters, are associated with different index values, correspond to different resource subgroups, or correspond to the same time resource. The measurement quantities are obtained by measuring other resources besides the reference resource in the reference resource and multiple first resource sets that have different QCL parameters, are associated with different index values, correspond to different resource subgroups, or correspond to the same time resource.

[0087] D: Measure the resources in multiple first resource sets that are associated with different index values, different resource subgroups, or the same time resource to obtain the measurement quantity; It should be understood that the resource set that satisfies the above conditions among multiple first resource sets corresponds to the case where the network-side device allocates different first resource sets to different TRPs. In this case, the measurement quantity is the measurement quantity between different TRPs.

[0088] In some embodiments, D specifically includes: One or more resources are selected as reference resources from multiple first resource sets, which are associated with different index values, different resource subgroups, or the same time resource. The measurement quantity is obtained by measuring other resources in the reference resource set and multiple first resource sets that are associated with different index values, different resource subgroups, or the same time resource, excluding the reference resource.

[0089] In some embodiments, the reference first resource set is the first resource set with the smallest index value.

[0090] In some embodiments, the plurality of reference first resource sets include the plurality of first resource sets from which the earliest burst transmission (such as a TRS burst) occurred.

[0091] For ease of understanding, the following example, Example 7, will illustrate the point: Assuming the network-side equipment configures 8 TRS resource sets for the UE, and 4 TRPs serve the UE, then each TRP corresponds to 2 TRS resource sets. The TRS resource set (hereinafter referred to as TRS) numbers are as follows: TRP 1: TRS 1, TRS 8; TRP 2: TRS 2, TRS 3; TRP 3: TRS 9, TRS 11; TRP 4: TRS 4, TRS 6; 1) Using TRS 1 as a reference, the UE calculates and reports the measured quantities based on other TRSs and TRS 1 respectively; 2) Using TRS 1, TRS 2, TRS 9, and TRS 4 as references respectively, the UE reports the measurements between other TRS and these reference TRS.

[0092] In some embodiments, the measurement reporting method of the present invention further includes: Determine the quantization range of the measured quantity; Within this quantization range, the measurement quantity is quantized to obtain the quantized measurement quantity. Accordingly, in step 102 above, reporting the measurement to the network-side device includes: The quantized measurement is reported to the network-side device.

[0093] After quantifying the measured quantity at the terminal side, it is then reported to the network side equipment, which can save the resources occupied by data transmission.

[0094] In some embodiments, the measurement quantity includes frequency difference or time delay difference; determining the quantization range of the measurement quantity includes: Determine the phase difference corresponding to the measured quantity; The phase difference corresponding to the measured quantity is processed modulo 2π to obtain the processing result; wherein, the processing result is the remainder obtained by calculating the phase difference corresponding to the measured quantity modulo 2π.

[0095] Based on the processing results, the quantization range of the measurement quantity is determined.

[0096] Here, considering that the phase difference corresponding to the frequency difference remains unchanged after modulo 2π processing, it is not necessary to report all frequency differences. Only frequency differences with phase differences within the 2π range are reported, and the specific quantization method is related to the subcarrier spacing. This approach can be applied to network-side equipment performing pre-compensation / pre-processing based on the UE's reports to eliminate frequency asynchrony errors and make the channel time-flat.

[0097] Assuming the frequency is f, the phase corresponding to a specific delay t is ej2πft.

[0098] Considering that the phase difference corresponding to the delay difference remains unchanged after modulo 2π processing, it is unnecessary to report all delay differences. Only delay differences with phase differences within the 2π range are reported, and the specific quantization method is related to the subcarrier spacing. This approach can be applied to network-side equipment performing pre-compensation / pre-processing based on the UE's reports to eliminate timing asynchrony errors.

[0099] Assuming a subcarrier has a frequency of fi, and a specific time delay difference τ corresponds to a phase of... .

[0100] In some embodiments, the measurement quantity includes a frequency difference or a time delay difference; quantizing the measurement quantity within the quantization range to obtain the quantized measurement quantity includes: Determine the multiple and remainder of the measurement relative to the quantization range; Within this quantization range, the remainder is quantized to obtain the quantized value.

[0101] Accordingly, in step 102 above, reporting the quantized measurement to the network-side device includes: Report the multiplier value and the quantization value to the network-side device.

[0102] Specifically, the measurement includes a frequency difference; determining the frequency difference relative to a first multiple of the quantization range and a first remainder; quantizing the remainder within the quantization range to obtain a first value; When considering the absolute value of the frequency difference, i.e., when the quantized value is not modulo 2π, the frequency difference can be reported in two parts. First, the quantization range of the frequency difference is determined (for example, the maximum quantization range determined by the subcarrier spacing, center frequency, or higher-layer parameters configured on the network side). Then, the UE calculates the first multiple and the first remainder of the frequency difference relative to the maximum frequency value in the quantization range. Finally, the UE reports the first multiple as the first part and quantizes the remainder within the quantization range to obtain the first value, which is reported as the second part.

[0103] For example, the maximum quantization range determined by the subcarrier spacing or center frequency is 0-400Hz; if the measured frequency difference is 500Hz, the UE divides 500Hz by 400Hz to get a quotient of 1 and a remainder of 100Hz. The UE then determines that the first part of the reported value is 1 and the second part of the reported value is 100Hz, which is the quantized value after quantization according to the range [0, 400].

[0104] Accordingly, the above steps, including reporting the quantized frequency difference to the network-side device, include: Report the first multiplier value and the first value to the network-side device.

[0105] Using the above two-step quantization method can further save the resources occupied by data transmission.

[0106] Specifically, the measurement includes the time delay difference; determining the second multiple and the second remainder of the time delay difference relative to the quantization range; Within this quantization range, the second remainder is quantized to obtain the second value; When considering the absolute value of the delay difference, i.e., when the quantization value is not modulo 2π, the frequency difference can be reported in two parts. First, determine the quantization range of the delay difference (for example, the maximum quantized delay difference value determined based on the subcarrier spacing as mentioned above); then, the UE calculates the second multiple of the delay difference relative to the maximum delay difference value in the quantization range and the second remainder; finally, the UE reports the second multiple as the first part, and quantizes the second remainder within the quantization range to obtain the second value, which is reported as the second part.

[0107] For example, if the maximum quantization range determined by the subcarrier spacing is 2778ns, and the measured delay difference is 4000ns, then the UE divides 4000ns by 2778ns, obtaining a quotient of 1 and a remainder of 1222ns. The UE then determines the first part of the reported value to be 1, and the second part of the reported value to be 1222ns, quantized according to the range [0, 2778ns]. Correspondingly, the above steps, reporting the quantized delay difference to the network-side device, include: reporting the second multiple value and the second value to the network-side device.

[0108] Using the above two-step quantization method can further save the resources occupied by data transmission.

[0109] In one embodiment, the measurement includes a frequency difference; determining the quantization range of the frequency difference includes at least one of the following: ① Determine the quantization range of the frequency difference based on the subcarrier spacing; Assuming the unit of latency is slot level, and the minimum latency is 1 slot, then: Taking a 15kHz subcarrier spacing as an example, the time length corresponding to each time slot is 1ms. Under this case, the frequency difference can be quantized within the range of 0-1000Hz (corresponding to 1 / 1ms). With a subcarrier spacing of 30kHz and a time length of 0.5ms for each time slot, the frequency difference is quantized within the range of 0-2000Hz; With a subcarrier spacing of 60kHz, the time length corresponding to each time slot is 0.25ms, and the frequency difference is quantized within the range of 0-4000Hz. Specifically, uniform quantization can be used within a defined quantization range, such as quantization at 50Hz intervals within the range of [0, 2000Hz].

[0110] ② Determine the quantization range of the frequency difference based on the center frequency point, which can be the current center frequency point, the center frequency point configured on the network side, or a predefined center frequency point; If the frequency difference is used for TRP selection (e.g., selecting a TRP with relatively small frequency error), the selected TRP can be transmitted via CJT, which can reduce or eliminate the frequency error. In this case, the network-side equipment will pay more attention to the absolute range of the frequency difference, so the quantization value cannot be modulo 2π. In this case, the quantization range can be determined based on the center frequency.

[0111] Scenario 1: The quantization range of the frequency difference is related to the current center frequency. Different center frequencies correspond to different quantization ranges of the frequency difference. For example, in some embodiments, it is related to the maximum frequency deviation of the device. For instance, at 6 GHz, the maximum frequency deviation is 0.1 ppm, and the corresponding maximum frequency difference is 600 Hz, meaning the quantization range of the frequency difference is 0-600 Hz; similarly, at 4 GHz, the corresponding maximum frequency difference is 400 Hz, meaning the quantization range of the frequency difference is 0-400 Hz.

[0112] Scenario 2: The quantization range of the frequency difference is related to a specific center frequency (configured or predefined on the network side), such as using the same quantization range for all center frequencies. The quantization range can be determined based on the largest center frequency, such as a maximum frequency range of 6GHz (or 7.125GHz). If the maximum frequency offset is 0.05ppm, then the quantization range of the frequency difference is 0-0.05ppm*6GHz, which is 0-300Hz.

[0113] ③ Determine the quantization range of the frequency difference based on the high-layer parameters configured on the network side.

[0114] In some embodiments, the measurement includes a time delay difference, and determining the quantization range of the time delay difference includes at least one of the following: ① Determine the quantization range of the delay difference based on the subcarrier spacing; Taking a 15kHz subcarrier spacing as an example, if the minimum reporting fineness of the delay difference is 1 RB, the frequency spacing corresponding to each RB is 15kHz × 12 = 180kHz. In this case, the delay difference is quantized within 0~1 / 180kHz = 5556ns. Taking a 15kHz subcarrier spacing as an example, if the minimum reporting fineness of the delay difference is 32 RBs, the frequency interval corresponding to every 32 RBs is 15kHz×12×32=5760kHz. In this case, the delay difference is quantized within 0~1 / 5760kHz=174ns. Taking a 30kHz subcarrier spacing as an example, if the minimum reporting fineness of the delay difference is 1 RB, the frequency spacing corresponding to each RB is 30kHz×12=360kHz. In this case, the delay difference is quantized within 0~1 / 360kHz=2778ns. Taking a 30kHz subcarrier spacing as an example, if the minimum reporting fineness of the delay difference is 4RB, the frequency interval corresponding to every 4 RBs is 30kHz×12×4=1440kHz. In this case, the delay difference is quantized within 0~1 / 1440kHz=694ns.

[0115] Specifically, uniform quantization can be used within a defined quantization range, such as quantization at 100ns intervals within the range of [0, 5556ns].

[0116] ② Determine the quantification range of the delay difference based on the reported detail of the delay difference.

[0117] Here, the measured quantity includes the frequency difference. In some embodiments, this frequency difference is the sub-band frequency difference, i.e., the frequency difference obtained according to the reporting detail of CJT CSI. The network-side device performs pre-compensation based on the frequency difference of each sub-band (to reduce or eliminate the impact of frequency synchronization errors), or adjusts the CSI reporting detail according to the corresponding frequency difference. Compared to reporting only one frequency difference for the entire broadband, the pre-compensation effect after sub-band reporting is better.

[0118] In some embodiments, the measurement includes a delay difference; in other embodiments, the delay difference is the frequency difference of a sub-band, i.e., the delay difference obtained according to the reporting detail of the CJT CSI. The network-side device performs pre-compensation based on the corresponding delay difference for each sub-band, or adjusts the CSI reporting detail according to the corresponding delay difference. Compared to reporting only one delay difference for the entire broadband, pre-compensation after sub-band reporting is more effective.

[0119] An example is provided to illustrate this; assuming the phase difference change introduced by the delay difference within the four resource blocks (RBs) is less than a specific radian (or a specific threshold, such as...). (where the threshold is configured by higher layer parameters or reported by the UE), then the UE reports the delay difference corresponding to every 4 RBs, and it is considered that the channels within 4 RBs can use the same delay difference compensation.

[0120] Here, "delay" is a different concept from the delay mentioned above. Here, delay refers to the propagation delay between multiple TRPs, multipath delay, and the delay always introduced. For example, it might be less than the CP length or slightly larger than the CP length. In contrast, the delay in frequency synchronization error elimination refers to a relatively long period, such as 4 time slots or 10 time slots.

[0121] In some embodiments, the measurement includes a time delay difference; specifically, the UE determines the first phase difference based on a TRS resource set with the same two QCL parameters, or based on a TRS resource set with different two QCL parameters.

[0122] The first phase difference determined by a TRS resource set with two identical QCL parameters is the phase difference of the same TRP at two different times; the first phase difference determined by a TRS resource set with two different QCL parameters is the phase difference between two TRPs.

[0123] In some embodiments, the UE performs measurements based on one or more reference TRS resource sets, or based on one or more CSI-RS related resource units (such as CSI-RS resource ports, CSI-RS resources, or CSI-RS resource sets). Accordingly, the UE reports the phase difference between different TRS resource sets and reference TRS resource sets, or the phase difference between CSI-RS related resource units and reference CSI-RS related resource units.

[0124] The following explanation uses a TRS resource set as an example.

[0125] The reference TRS resource set can be a TRS resource set with the smallest index value among all TRS resource sets associated with the reporting settings, or it can be multiple TRS resource sets that were the earliest to experience a TRS burst transmission. Each TRP defines a reference TRS resource set.

[0126] Assuming the network-side equipment configures 8 TRS resource sets for the UE, and 4 TRPs serve the UE, then each TRP corresponds to 2 TRS resource sets. The TRS resource set (hereinafter referred to as TRS) numbers are as follows: TRP 1: TRS 1, TRS 8; TRP 2: TRS 2, TRS 3; TRP 3: TRS 9, TRS 11; TRP 4: TRS 4, TRS 6; 1) Using TRS 1 as a reference, the UE calculates and reports the phase difference between other TRSs and TRS 1 respectively. Since the phase difference between TRS 1 and TRS 1 is 0, no reporting is required. 2) Using TRS 1, TRP 2, TRP 9, and TRP 4 as references respectively, the UE reports the phase difference between other TRS and these reference TRS.

[0127] Accordingly, in step 102 above, reporting the measurement to the network-side device includes at least one of the following: 1) Report multiple first phase differences to the network-side device, where one delay value corresponds to one or more first phase differences. This delay value is configured by the network-side device and is the time interval corresponding to the reported measurement. Specifically, the delay value represents the time interval between two first phase differences, or, when the first phase difference is the first phase difference, the delay value represents the time interval between the time corresponding to the first phase difference and the reference time.

[0128] Here, it is assumed that the network-side device is configured with 6 TRS resource sets, TRS resource sets 1 to 6, which correspond to 3 TRPs respectively. Among them, TRS resource sets 1 and 2 have QCL parameter 1, TRS resource sets 3 and 4 have QCL parameter 2, and TRS resource sets 5 and 6 have QCL parameter 3. One scenario involves the network-side equipment configuring a delay value that applies to all TRPs (Transport Restricted Resource Sets). For example, if the delay value is 5 slots, the UE can perform measurements on TRS resource sets 1 and 2, which have the same QCL parameters, index values, or resource subgroups, with a 5-slot interval between the measurements. Then, the difference between the two phase values ​​is calculated to obtain the first phase difference, which is then reported. This process is repeated for other TRS resource sets, and the first phase differences between them are obtained and reported. Thus, one delay value corresponds to multiple first phase differences.

[0129] Another scenario involves the network-side device configuring multiple delay values, each applicable only to a subset of TRPs. For example, if the network-side device configures three delay values—two slots, three slots, and four slots—the UE measures TRS resource sets 1 and 2 (corresponding to one TRP) with the same QCL parameters, index values, or resource subgroups at intervals of two slots, obtaining and reporting a first phase difference. Similarly, the UE measures TRS resource sets 3 and 4 (corresponding to one TRP) with the same QCL parameters, index values, or resource subgroups at intervals of three slots, obtaining and reporting a first phase difference. Furthermore, the UE measures TRS resource sets 5 and 6 (corresponding to one TRP) with the same QCL parameters, index values, or resource subgroups at intervals of four slots, obtaining and reporting a first phase difference. Thus, one delay value corresponds to one first phase difference.

[0130] 2) Report multiple delay values ​​to the network-side device, and at least two first phase differences corresponding to each delay value, wherein the number of first phase differences corresponding to each delay value is the same; The following is an illustration using Example 8: Example 8: The network-side device uses 3 TRPs to perform CJT transmission for the UE. The UE reports 2 delay values. Taking the TRS resource set corresponding to the first TRP that sent the earliest TRS as a reference, the UE reports the phase difference between each TRP and the reference TRP (the first TRP that sent the earliest TRS) at each delay value. In this case, even if the time selectivity of multiple TRPs is different, the UE needs to jointly determine a set of delay values ​​according to the time domain channel changes of each TRP. See Figure 11. The number of phase differences corresponding to each delay value is the same.

[0131] When a specific TRP is used as a reference to calculate the phase difference, the phase difference of the TRP at different delay values ​​is caused only by Doppler frequency shift, etc., rather than by clock frequency offset. When the phase difference changes are small, the phase values ​​of the reference TRP (or reference TRS resource set) at different delay values ​​do not need to be reported, see Figure 12.

[0132] 3) Report multiple delay values ​​to the network-side device, and at least two first phase differences corresponding to each delay value, wherein the number of first phase differences corresponding to each delay value is different; Under this reporting scheme, not every TRP reports the phase difference for each delay value. For example, if a certain TRP has a small frequency offset, the phase difference for some delay values ​​may not be reported.

[0133] Example 9, as shown in Figure 13, takes TRP 1 at the reference time as a reference, and all other TRPs are received according to the receiving frequency of TRP 1. Therefore, the phase difference of TRP 1 under different delay values ​​is relatively small. Thus, under some delay values, the phase difference of TRP 1 may not be reported.

[0134] 4) Report multiple delay values ​​to the network-side device, and a precoding matrix consisting of at least two first phase differences corresponding to each delay value.

[0135] The terminal can obtain multiple first phase differences based on the TRS resource set or CSI-RS related resource units, and then quantize the multiple first phase differences according to a codebook to obtain a precoding matrix. As shown in Figure 11, the UE uses a 6*1 vector (codebook) to quantize the first phase difference, or uses two 3*1 vectors (codebooks) to quantize the first phase difference.

[0136] In some embodiments, the measurement includes a TDCP value; When reporting TDCP, the UE can report the TDCP value of the channel corresponding to the same TRP (such as two first resource sets with the same QCL parameters but different corresponding time resources) between two time points. The UE can also select a TRP (such as a TRS resource set) as a reference and report the TDCP values ​​of all TRPs and the reference TRP under multiple delay values.

[0137] Assuming the network-side equipment configures 8 TRS resource sets for the UE, and 4 TRPs serve the UE, then each TRP corresponds to 2 TRS resource sets. The TRS resource set (hereinafter referred to as TRS) numbers are as follows: TRP 1: TRS 1, TRS 8; TRP 2: TRS 2, TRS 3; TRP 3: TRS 9, TRS 11; TRP 4: TRS 4, TRS 6; The reported TDCP value can be: 1) Using TRS 1 as a reference, the UE calculates and reports the TDCP values ​​for other TRSs and TRS 1 respectively. Since the TDCP value between TRS 1 and TRS 1 is 0, no reporting is required. The UE only needs to report 7 TDCP values ​​(including TDCP amplitude and TDCP phase). 2) Using TRS 1, TRS 2, TRS 9, and TRS 4 as references respectively, the UE reports the TDCP values ​​between other TRSs and these reference TRSs; 3) The UE reports the TDCP amplitude with reference to TRS 1, TRS 2, TRS 9, and TRS 4 respectively, and reports the TDCP phase values ​​between other TRS and TRS 1 with reference to TRS 1.

[0138] Accordingly, in step 102 above, reporting the measurement to the network-side device includes at least one of the following: 1) Report multiple TDCP values ​​to the network-side device, where one latency value corresponds to one or more TDCP values. This latency value is configured by the network-side device and is the time interval corresponding to the reported measurement. Here, the delay value is configured by the network-side equipment, and the UE only reports the TDCP value corresponding to the delay value. The delay value represents the time interval between two measurements.

[0139] Assume the network-side equipment is configured with 6 TRS resource sets, TRS resource set 1 to TRS resource set 6, each corresponding to 3 TRPs. Among them, TRS resource set 1 and TRS resource set 2 have QCL parameter 1, TRS resource set 3 and TRS resource set 4 have QCL parameter 2, and TRS resource set 5 and TRS resource set 6 have QCL parameter 3. One scenario involves the network-side equipment configuring a delay value that applies to all TRPs. For example, if the delay value is 5 slots, the UE can measure TRS resource sets 1 and 2, which have the same QCL parameters, index values, or resource subgroups, at intervals of 5 slots, obtain a TDCP value (such as TDCP amplitude), and report it. Similarly, the UE can measure TRS resource sets 3 and 4, which have the same QCL parameters, index values, or subgroups, at intervals of 5 slots, obtain a TDCP value (such as TDCP amplitude), and report it. Likewise, the UE can measure TRS resource sets 5 and 6, which have the same QCL parameters, index values, or subgroups, at intervals of 5 slots, obtain a TDCP value (such as TDCP amplitude), and report it. Thus, one delay value corresponds to multiple TDCP values.

[0140] Another scenario involves the network-side equipment configuring multiple delay values, each applicable only to a subset of TRPs. For example, if the network-side equipment is configured with three delay values—two slots, three slots, and four slots—the UE will measure TRS resource sets 1 and 2 (corresponding to one TRP) with the same QCL parameters, index values, or resource subgroups at intervals of two slots, obtaining and reporting a TDCP value (e.g., TDCP amplitude). The UE will measure TRS resource sets 3 and 4 (corresponding to one TRP) with the same QCL parameters, index values, or resource subgroups at intervals of three slots, obtaining and reporting a TDCP value (e.g., TDCP amplitude). The UE will measure TRS resource sets 5 and 6 (corresponding to one TRP) with the same QCL parameters, index values, or resource subgroups at intervals of four slots, obtaining and reporting a TDCP value (e.g., TDCP amplitude). Thus, one delay value corresponds to one TDCP value.

[0141] When the delay value corresponding to each TRP exceeds 1, the UE will also report the TDCP phase.

[0142] 2) Report one or more latency values, and multiple TDCP values ​​corresponding to each latency value, to the network-side device; Because the time-varying characteristics of multiple TRPs are different, the UE can also report delay values. One delay value can correspond to multiple TDCP values ​​(TDCP amplitude and / or TDCP phase). One delay value can be used for multiple TRPs or only for a specific TRP.

[0143] In some embodiments, when the network side is configured with K×N TRS resource sets, the UE may associate a delay value with 2K TRS resource sets or with only 2 TRS resource sets.

[0144] 3) Report multiple TDCP values ​​and multiple first phase differences to the network-side equipment; If TDCP measurements are not reported between two TRPs, the reported phase between the TRPs cannot be called the TDCP phase. To distinguish it from the TDCP phase (the phase corresponding to the time-domain correlation characteristic), the phase between TRPs is called the first phase difference. The first phase difference can also be understood as the phase corresponding to the non-time-domain correlation characteristic.

[0145] To facilitate pre-compensation operations by network-side equipment (to eliminate the impact of frequency synchronization errors), in addition to reporting the TDCP value, the UE also needs to report the first phase difference between TRPs. For details on how to obtain the first phase difference between TRPs, please refer to the description in the relevant embodiments section, which will not be repeated here.

[0146] Here, the first phase difference and the TDCP phase can be quantized using the same quantization method, or different quantization methods can be used. For example, the TDCP phase can be quantized using 4 bits, and the first phase difference between TRPs can be quantized using 3 bits or 5 bits.

[0147] The UE can report the first phase difference between multiple TRPs (a set of TRS resources with the same QCL parameters, or a set of TRS resources associated with the same index value or the same resource subgroup) at the current time, and can also report the first phase difference between multiple TRPs at each delay value.

[0148] 4) Report one or more delay values ​​to the network-side device, and multiple TDCP values ​​and multiple first phase differences corresponding to each delay value.

[0149] Based on 3) above, the UE can also report an additional delay value. This delay value can be applied to the TRS resource set or CSI resource set corresponding to all TRPs, or it can be applied to the TRS resource set or CSI resource set corresponding to a specific TRP.

[0150] In some embodiments, the measurement includes time delay difference; In some embodiments, the delay difference is the frequency difference of the sub-band, i.e., the delay difference obtained according to the reporting granularity of CJT CSI. The network-side device performs pre-compensation based on the corresponding delay difference for each sub-band, or adjusts the CSI reporting granularity according to the corresponding delay difference. Compared to reporting only one delay difference for the entire broadband, the pre-compensation effect after sub-band reporting is better.

[0151] In some embodiments, the delay difference is reported according to the subtlety of the phase change corresponding to the delay. An example is provided to illustrate this; assuming the phase difference change introduced by the delay difference within four resource blocks (RBs) is less than a specific radian (or a specific threshold, such as...). (where the threshold is configured by higher layer parameters or reported by the UE), then the UE reports the delay difference corresponding to every 4 RBs, and it is considered that the channels within 4 RBs can use the same delay difference compensation.

[0152] Here, "delay" is a different concept from the delay mentioned above. Here, delay refers to the propagation delay between multiple TRPs, multipath delay, and the delay always introduced. For example, it might be less than the CP length or slightly larger than the CP length. In contrast, the delay in frequency synchronization error elimination refers to a relatively long period, such as 4 time slots or 10 time slots.

[0153] It should be noted that if the network-side equipment configures more measurement resource ports for the terminal, such as a single TRP using up to 128 ports (e.g., using four 32-port CSI-RS resources to construct a 128-port CSI-RS resource), or multiple TRPs jointly using 128 or 256 ports, then the K measurement resources need to be expanded into K groups of measurement resources. Each group can contain 2K, 3K, 4K, 8K, or even more measurement resources (e.g., KP measurement resources, where P is the number of measurement resources in each group; for example, P measurement resources can jointly construct more ports, such as KP antenna ports, where P is greater than or equal to 1). In this case, it is necessary to clarify how the UE determines which measurement resources form a group and reports measurements based on multiple CSI-RS resources within a group. For example, the UE might use a group of measurement resources to determine the PMI reporting amount at a given time, or the UE might use a group of measurement resources to determine a precoded codeword with a higher number of ports. Therefore, in some embodiments, before measuring at least one group of resources in the first resource set after receiving a first resource set from the network-side device and obtaining the measurement quantity, the measurement reporting method of the present invention further includes: If the first resource set is singular, each group of resources in the first resource set is determined based on first information; wherein the first information includes one or more of the following: Time-domain dependent parameters; Resource identifier; Measurement configuration sequence; Group information configured on network-side devices.

[0154] Specifically, the terminal can determine which resources (CSI-RS resources or TRS resources) are grouped together based on time-domain related parameters, such as the transmission slot information of the resource or the slot offset configuration.

[0155] The terminal can determine which resources are grouped together based on the resource identifier ID; for example, it can determine that each group consists of P resources in ascending order of resource ID values.

[0156] The terminal can determine which resources are grouped according to the measurement configuration order; for example, it can determine that each P resources are grouped according to the resource configuration order.

[0157] The terminal can determine multiple resources within a group based on the packet information configured by the network-side device. For example, the network-side device can configure K groups of resources in a first resource set, with each group containing P resources, that is, each group explicitly configures the resource IDs it contains.

[0158] Of course, resources can also be grouped together based on a combination of the above information. For example, the network-side device can determine the first resource in each group based on the resource ID, and then determine the other resources in each group based on the time-domain related parameters of the resources: resources whose time slot offset from the first resource in each group is less than a specific value; or the network-side device can explicitly configure the first resource in each group, and then determine the other resources in each group based on the time-domain related parameters of the resources.

[0159] In some embodiments, each group of resources has the same time slot offset value or is configured in the same time slot.

[0160] In some embodiments, the terminal determines that each group of multiple resources has different port index values. For example, during configuration, the port indices of a group of multiple CSI-RS resources are all from 0 to P-1, where P is the number of ports for each CSI-RS resource. The terminal determines that the multiple CSI-RS resources in a group jointly construct a larger number of ports, such as constructing 4P antenna ports. For example, the terminal determines that the first CSI-RS resource in a group is mapped to ports 0 to P-1 during transmission, the second CSI-RS resource is mapped to ports P to 2P-1 during transmission, the third CSI-RS resource is mapped to ports 2P to 3P-1 during transmission, and the fourth CSI-RS resource is mapped to ports 3P to 4P-1 during transmission.

[0161] In some embodiments, the terminal determines that different groups of resources have the same port index value, that is, the port index corresponding to the CSI-RS resources in the first group is 0 to 4P-1, and the port index corresponding to multiple CSI-RS resources in the second group, the third group and the fourth group is also 0 to 4P-1.

[0162] In some embodiments, the first information includes time-domain related parameters, which include transmission slot information or slot offset configuration of the resource; correspondingly, determining each group of resources in the first resource set based on the first information includes: The resources within a time slot in the first resource set are defined as a group of resources; or, Resources with the same slot offset value in the first resource set are grouped together. It should be understood that the terminal determines multiple resources within a time slot as a group, or resources configured with the same time slot offset value as a group. In some embodiments, resources in different groups are configured in different time slots, and there is a predetermined interval between each group of resources, such as one time slot or two time slots, wherein the predetermined interval is configured by the network-side device.

[0163] Alternatively, resources in the first resource set whose slot offset values ​​differ by less than a first threshold can be grouped together. For example, resources whose slot offset values ​​differ by 0 or 1 are grouped together.

[0164] In some embodiments, the time interval between the first resource in two consecutive sets of resources is greater than or equal to a first preset time slot value. For example, the interval may be one or two time slots, and this time interval is configured by the network-side device.

[0165] Specifically, the first resource is one or more of the following: The resource with the smallest identifier value in each resource group; The resource with the highest identifier value in each resource group; The first resource configured in each resource group; The resource with the smallest time slot offset value in each resource group; The resource with the largest slot offset value in each resource group.

[0166] In some embodiments, the time interval between the last resource in each group and the last resource in the previous group is greater than or equal to a second preset time slot value; or, The time interval between the first resource in each resource group and the last resource in the previous resource group is greater than or equal to the third preset time slot value; or, The time interval between the last resource in two consecutive resource groups is greater than or equal to the fourth preset time slot value.

[0167] When a group contains multiple resources, these resources can be combined to form resources with more antenna ports, used to determine the port index in the PMI. For example, the dimension of the precoding matrix is ​​v*128, where v represents the number of transmission layers and 128 represents the number of transmitting antenna ports. There is a one-to-one correspondence between the number of antenna ports corresponding to the PMI and the ports of each group of multiple measurement resources. For instance, the first resource in each group corresponds to antenna ports 0-31, used to determine the channel information and precoding weights for ports 0-31; the second resource corresponds to antenna ports 32-63, used to determine the channel information and precoding weights for ports 32-63; the third resource corresponds to antenna ports 64-95, used to determine the channel information and precoding weights for ports 64-95; and the fourth resource corresponds to antenna ports 96-127, used to determine the channel information and precoding weights for ports 96-127. For another example, the mapping relationship between the CSI-RS resource index or port index and the CSI or PMI calculation can be determined using the following method: Mapping Method 1: The order of sorting / indexing within (1st resource, 1st polarization), then (2nd resource, 1st polarization), ..., then (Kth resource, 1st polarization), then (1st resource, 2nd polarization), then (2nd resource, 2nd polarization), ..., then (Kth resource, 2nd polarization) is mapped to PMI.

[0168] Mapping Method 2: (where K*n2=N2) Order sorting / indexing: For the first polarization, (the first n2 port in the first resource, the first polarization), (the first n2 port in the second resource, the first polarization), ..., (the first n2 port in the Kth resource, the first polarization), then (the second n2 port in the first resource, the first polarization), ..., (the second n2 port in the Kth resource, the first polarization), ..., then (the N1st n2 port in the first resource, the first polarization), ..., (the N1st n2 port in the second resource, the first polarization), ..., (the N1st n2 port in the Kth resource, the first polarization), ..., (the N1st n2 port in the Kth resource, the first polarization); Then, for the second polarization, (the first n2 port in the first resource, the second polarization), (the first n2 port in the second resource, the second polarization), ..., (the first n2 port in the K resource, the second polarization), then (the second n2 port in the first resource, the second polarization), ..., (the second n2 port in the K resource, the second polarization), ..., then (the N1st n2 port in the first resource, the second polarization), ..., (the N1st n2 port in the second resource, the second polarization), ..., (the N1st n2 port in the K resource, the first polarization), ..., (the N1st n2 port in the K resource, the first polarization) are mapped onto the PMI.

[0169] N1 and N2 are high-level signaling configurations, representing the number of antenna ports in the horizontal and vertical directions, respectively, and n2 = N2 / K.

[0170] Therefore, to determine the PMI, it is necessary to identify which of the multiple resources in a group is the first resource, the second resource, the third resource, and the fourth resource, and then determine which resource is used to determine the channel information and precoding matrix weights for which port. In some embodiments, the nth resource in each group is one or more of the following: In each group of resources, the resource identifier values ​​are arranged in ascending order, and the resource is the nth one. In each group of resources, the resource identifier values ​​are arranged in descending order, and the resource is the nth one in the list; The resource in each group is arranged in the order of resource allocation, and is the nth resource. Within each group of resources, the resources are arranged in ascending order of their time slot offset values, with the nth resource being the first one in the group. The resource in each group is arranged in descending order of its time slot offset value, and is the nth resource.

[0171] The measurement reporting method of this invention receives one or more first resource sets sent by a network-side device. These first resource sets are either Tracking Reference Signal (TRS) resource sets or Channel Status Information (CSI) resource sets. Then, if multiple first resource sets are received from the network-side device, the resources in these multiple first resource sets are measured to obtain measurement quantities. Among these multiple first resource sets, some resources have the same QCL parameters, the same associated index values, the same corresponding resource subgroups, or different corresponding time resources; others have different QCL parameters, different associated index values, different corresponding resource subgroups, or the same corresponding time resources. This determines the correspondence between the first resource sets and the TRP, or the correspondence with different times, to facilitate implementation. The system first reports measurements between multiple TRPs and at different times within the same TRP. Finally, it reports the measured quantity to the network-side device. This measured quantity includes at least one of the following: frequency difference, delay difference, phase difference, and TDCP amplitude. Alternatively, if the network-side device receives a first resource set, it measures at least one group of resources within that first resource set to obtain the measured quantity. This determines the correspondence between each group of resources in the first resource set and the antenna port, facilitating measurement reporting from more ports. Finally, the measured quantity is reported to the network-side device, including the precoding matrix indicator (PMI). Thus, since the terminal reports measurements including measurements between multiple TRPs, the network-side device is assisted in reducing or eliminating the impact of time-frequency synchronization errors or reciprocity errors based on the reported measurements.

[0172] Figure 14 shows a flowchart of the measurement reporting method provided in an embodiment of the present invention. This measurement reporting method is applied to network-side devices, i.e., it is executed by the network-side devices. Specifically, the measurement reporting method includes: Step 1401: Send one or more first resource sets for measurement to the terminal. These first resource sets are either Tracking Reference Signal (TRS) resource sets or Channel Status Information (CSI) resource sets. When multiple first resource sets are sent to the terminal, some resources in these sets have the same QCL parameters, the same associated index values, the same corresponding resource subgroups, or different corresponding time resources; others have different QCL parameters, different associated index values, different corresponding resource subgroups, or the same corresponding time resources. Alternatively, when only one first resource set is sent to the terminal, at least one set of resources in this first resource set is used for measurement. Multiple first resource sets are configured by network-side devices. The TRS resource set includes multiple TRS resources; the CSI resource set includes multiple CSI-RS resources. Time resources can be time slots, symbols, etc.

[0173] It should be understood that among the multiple first resource sets, some resources have the same QCL parameters, the same associated index values, the same corresponding resource subgroups, or different corresponding time resources. Here, "some resources" refers to a portion of the first resource sets, and all resources within these first resource sets; and / or, it refers to a portion of the resources within a certain first resource set.

[0174] In the multiple first resource sets, some resources have different QCL parameters, different associated index values, different corresponding resource subgroups, or the same corresponding time resources. Here, "some resources" refers to a portion of the first resource sets. These first resource sets have different associated index values, different corresponding resource subgroups, the same corresponding time resources, or different QCL parameters. And / or, it refers to a portion of the resources within a certain first resource set.

[0175] In these multiple first resource sets, some resources have the same QCL parameters, the same associated index values, the same corresponding resource subgroups, or different corresponding time resources; others have different QCL parameters, different associated index values, different corresponding resource subgroups, or the same corresponding time resources. The purpose is to enable the terminal to determine its correspondence with a TRP, or with different time points, so as to facilitate measurement reporting between multiple TRPs and measurement reporting of the same TRP at different times. For example, some first resource sets correspond to the same TRP (e.g., based on QCL parameters, several first resource sets with the same QCL parameters correspond to the same TRP; or based on index values, first resource sets with the same associated index values ​​correspond to the same TRP), while some first resource sets correspond to different TRPs (e.g., based on QCL parameters, several first resource sets with different QCL parameters correspond to different TRPs; or based on index values, first resource sets with different associated index values ​​correspond to different TRPs). For example, some sets of first resources corresponding to the same time resource may correspond to different TRPs, and some sets of first resources corresponding to different time resources may correspond to the same TRP. Of course, the terminal can determine the correspondence with TRP or the correspondence with different times based on one or more of the above conditions.

[0176] Step 1402: Receive the measurement quantity reported by the terminal, which includes at least one of the following: frequency difference, time delay difference, phase difference, TDCP amplitude and precoding matrix indicator PMI.

[0177] It should be noted that the frequency difference can be the frequency difference between different TRPs or the frequency difference of the same TRP at different times; the delay difference can be the delay difference between different TRPs or the delay difference of the same TRP at different times; the phase difference can be the phase difference between different TRPs or the phase difference of the same TRP at different times.

[0178] The frequency difference can be represented by the first amplitude, that is, the frequency difference is a specific value or amplitude, which is used to characterize the frequency difference.

[0179] The network-side equipment receives measurements reported by the terminal and can eliminate the effects of time-frequency synchronization errors or reciprocity errors based on these measurements. For example, if the reported measurement is the frequency difference or phase difference between different TRPs, frequency synchronization errors can be eliminated; if the reported measurement is the delay difference between different TRPs, time synchronization errors can be eliminated.

[0180] In some embodiments, the measurement reporting method of the present invention further includes: Configure K×N first resource sets for this terminal, where K and N are both positive integers greater than 1; In some embodiments, the terminal is configured with K×N first resource sets, including at least one of the following: Configuration number The first resource set to the first All resources in the first resource set have the same QCL parameter or the first... The first resource set to the first Each of the first resource sets corresponds to a different time resource, where i = 1, 2…K, and N and K are positive integers greater than or equal to 1; and / or, Configure the j-th first resource set, ... A first resource set, ... All resources in the j-th first resource set have the same QCL parameter, or the j-th first resource set, ... A first resource set, ... Each of the first resource sets corresponds to a different time resource, where j = 1, 2, ..., K; and / or, Configure the (p-1)K+1th first resource set to the p×Kth first resource set to correspond to the same time resource, or configure all resources within the same first resource set from the (p-1)K+1th to the p×Kth first resource set to have the same QCL parameter. Different first resource sets and resources have different QCL parameters, where p=1, 2…N; and / or, Configure the q-th first resource set, the (q+N)-th first resource set, ..., the (q+(K-1)N)-th first resource set to correspond to the same time resource, or configure all resources within the same first resource set in the q-th first resource set, the (q+N)-th first resource set, ..., the (q+(K-1)N)-th first resource set to have the same QCL parameter. Different first resource sets and resources have different QCL parameters, where q = 1, 2, ..., N.

[0181] It should be noted that K represents the number of TRPs, and N represents the number of the first resource sets of a TRP at different times.

[0182] For a better understanding of the above embodiments, please refer to the detailed descriptions in Embodiments 1 and 2 on the terminal side; they will not be repeated here.

[0183] Alternatively, configure K first resource sets for the terminal.

[0184] In some embodiments, when K first resource sets are configured for the terminal, All resources within the same first resource set have the same QCL parameter; resources in different first resource sets have different QCL parameters; or, Each subset of resources within this first resource set has different QCL parameters; or, The same first resource set is associated with the same index value, and different first resource sets are associated with different index values; or, The same first resource set corresponds to the same resource subgroup, or the same resource subgroup corresponds to the same time resource.

[0185] For a better understanding of the above embodiments, please refer to the descriptions in Embodiments 3 to 6 on the terminal side, which will not be repeated here.

[0186] After receiving the measurement data reported by the terminal, the network-side equipment performs processing to reduce or eliminate time-frequency synchronization errors based on the reported measurement data.

[0187] When frequency synchronization errors exist among multiple TRPs, receiving signals according to the receiving frequency of one TRP will cause the channels of other TRPs to exhibit time selectivity, meaning they change rapidly in time. The UE can measure at least one of the following: frequency difference, phase difference, or TDCP value, by measuring TRS or CSI-RS and reporting it. After receiving the UE's report, the network-side equipment can reduce or eliminate the error in the following three ways: Method 1: Perform pre-compensation / pre-processing based on the UE's reports to eliminate frequency asynchrony errors and make the channel time-flattened; Method 2: Adjust the granularity of the precoding matrix based on the UE's reports, such as reducing the feedback period / interval, so that the granularity of CSI reporting matches the current time-varying channel characteristics; Method 3: Determine the serving TRP based on the UE's report (i.e., select the TRP), such as selecting the TRP with a relatively small frequency error for CJT transmission.

[0188] When time synchronization errors exist among multiple TRPs, receiving data according to the reception timing of one TRP will cause the channels of other TRPs to exhibit frequency selectivity, meaning they will change more rapidly in time. The UE can measure the delay difference or phase difference by measuring the TRS or CSI-RS and report it. After receiving the UE's report, the network-side equipment can reduce the error in the following three ways: Method 1: Perform pre-compensation / pre-processing based on the UE's reports to eliminate time asynchrony errors and make the channel frequency flat. Method 2: Adjust the nuances of the precoding matrix based on the UE's reports, such as reducing the subband nuances, so that the CSI reporting nuances match the current frequency channel characteristics.

[0189] Method 3: Determine the serving TRP based on the UE's report (i.e., select the TRP), such as selecting the TRP with a relatively small time error for CJT transmission.

[0190] In some embodiments, the measurement reporting method of the present invention further includes: Configure each group of resources in the first resource set according to the first information; wherein the first information includes one or more of the following: Time-domain dependent parameters; Resource identifier; Measurement configuration sequence; Explicitly configured group information.

[0191] When the first information includes explicitly configured group information, the network-side device configures K groups of resources in a first resource set, each group containing P resources, i.e., the resource IDs contained in each group of explicit configuration.

[0192] In some embodiments, the first information includes time-domain related parameters, which include resource transmission slot information or slot offset configuration; correspondingly, configuring each group of resources in the first resource set according to the first information includes: Configure the resources within a time slot in the first resource set as a group of resources; or, Resources with the same slot offset value in the first resource set are configured as a group of resources; or, Resources in the first resource set whose time slot offset values ​​differ from the first threshold are configured as a group of resources.

[0193] In some embodiments, each group of measurement resources has the same time slot offset value or is configured in the same time slot.

[0194] In some embodiments, the time interval between the first resource in two consecutive sets of resources is greater than or equal to a first preset time slot value.

[0195] In some embodiments, the first resource is one or more of the following: The resource with the smallest identifier value in each resource group; The resource with the highest identifier value in each resource group; The first resource configured in each resource group; The resource with the smallest time slot offset value in each resource group; The resource with the largest slot offset value in each resource group.

[0196] In some embodiments, the time interval between the last resource in each group and the last resource in the previous group is greater than or equal to a second preset time slot value; or, The time interval between the first resource in each resource group and the last resource in the previous resource group is greater than or equal to the third preset time slot value; or, The time interval between the last resource in two consecutive resource groups is greater than or equal to the fourth preset time slot value.

[0197] In some embodiments, the nth resource in each group of resources is one or more of the following: In each group of resources, the resource identifier values ​​are arranged in ascending order, and the resource is the nth one. In each group of resources, the resource identifier values ​​are arranged in descending order, and the resource is the nth one in the list; The resource in each group is arranged in the order of resource allocation, and is the nth resource. Within each group of resources, the resources are arranged in ascending order of their time slot offset values, with the nth resource being the first one in the group. The resource in each group is arranged in descending order of its time slot offset value, and is the nth resource.

[0198] The measurement reporting method of this invention sends one or more first resource sets for measurement to the terminal. These first resource sets are either Tracking Reference Signal (TRS) resource sets or Channel Status Information (CSI) resource sets. When multiple first resource sets are sent to the terminal, some resources in these sets have the same QCL parameters, the same associated index values, the same corresponding resource subgroups, or different corresponding time resources; others have different QCL parameters, different associated index values, different corresponding resource subgroups, or the same corresponding time resources. This allows the terminal to determine the correspondence between the first resource sets and the TRP, or the correspondence between the first resource sets and different time periods. This facilitates measurement reporting between multiple TRPs and measurement reporting at different times within the same TRP; or, when the first resource set sent to the terminal is one, at least one set of resources in the first resource set is used for measurement; thereby enabling the terminal to determine the correspondence between each set of resources in the first resource set and the antenna port; to facilitate measurement reporting from more ports; then, the measurement quantity reported by the terminal is received; the measurement quantity includes at least one of the following: frequency difference, delay difference, phase difference, TDCP amplitude, and precoding matrix indicator (PMI); thus, since the measurement quantity reported by the terminal includes the measurement quantity measured between multiple TRPs, the network-side equipment can eliminate the influence of time-frequency synchronization error or reciprocity error based on the reported measurement quantity.

[0199] As shown in Figure 15, this embodiment of the invention also provides a terminal, including: a memory 1520, a transceiver 1500, and a processor 1510; the memory 1520 is used to store program instructions; the transceiver 1500 is used to send and receive data under the control of the processor 1510; the processor 1510 performs the following operations: Receive one or more first resource sets sent by the network-side device, wherein the first resource set is a Tracking Reference Signal (TRS) resource set or a Channel Status Information (CSI) resource set; When multiple first resource sets are received from the network-side device, the resources in these multiple first resource sets are measured to obtain a measurement quantity. Among these multiple first resource sets, some resources have the same QCL parameters, the same associated index value, the same corresponding resource subgroup, or different corresponding time resources; others have different QCL parameters, different associated index values, different corresponding resource subgroups, or the same corresponding time resources. The measurement quantity is reported to the network-side device. The measurement quantity includes at least one of the following: frequency difference, delay difference, phase difference, and TDCP amplitude. If the first resource set received from the network-side device is one, at least one group of resources in the first resource set is measured to obtain a measurement quantity; the measurement quantity is reported to the network-side device, and the measurement quantity includes at least the precoding matrix indicator (PMI).

[0200] In Figure 15, the bus architecture may include any number of interconnected buses and bridges, specifically connecting various circuits of one or more processors represented by processor 1510 and memory represented by memory 1520. The bus architecture may also connect various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be further described here. The bus interface provides an interface. The transceiver 1500 may be multiple components, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, including wireless channels, wired channels, optical fibers, etc. For different user devices, the user interface 1530 may also be an interface capable of connecting external or internal devices, including but not limited to keypads, displays, speakers, microphones, joysticks, etc.

[0201] Processor 1510 is responsible for managing the bus architecture and general processing, while memory 1520 can store the data used by processor 1510 when performing operations.

[0202] In some embodiments, the processor 1510 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor 1510 may also adopt a multi-core architecture.

[0203] The processor 1510 executes any of the measurement reporting methods provided in this embodiment of the invention according to the obtained executable instructions by calling program instructions stored in memory. The processor 1510 and the memory 1520 may also be physically separated.

[0204] In some embodiments, the plurality of first resource sets include: No. The first resource set to the first All resources in the first resource set have the same QCL parameter or the first... The first resource set to the first Each of the first resource sets corresponds to a different time resource, where i = 1, 2…K, and N and K are positive integers greater than or equal to 1; and / or, The j-th first resource set, the A first resource set, ... All resources in the j-th first resource set have the same QCL parameter, or the j-th first resource set, ... A first resource set, ... Each of the first resource sets corresponds to a different time resource, where j = 1, 2, ..., K; and / or, The (p-1)K+1th first resource set to the p×Kth first resource set correspond to the same time resource, or all resources within the same first resource set from the (p-1)K+1th to the p×Kth first resource sets have the same QCL parameter. Different first resource sets and resources have different QCL parameters, where p = 1, 2…N; and / or, The q-th first resource set, the (q+N)-th first resource set, ..., the (q+(K-1)N)-th first resource set correspond to the same time resource, or all resources within the same first resource set in the q-th first resource set, the (q+N)-th first resource set, ..., the (q+(K-1)N)-th first resource set have the same QCL parameter. The QCL parameters of resources in different first resource sets are different, where q = 1, 2, ..., N.

[0205] In some embodiments, the plurality of first resource sets include: All resources within the same first resource set have the same QCL parameter; resources in different first resource sets have different QCL parameters; or, Each subset of resources within this first resource set has different QCL parameters; or, The same first resource set is associated with the same index value, and different first resource sets are associated with different index values; or, The same first resource set corresponds to the same resource subgroup, or the same resource subgroup corresponds to the same time resource.

[0206] In some embodiments, the processor 1510 is further configured to: Measurements are performed on resources in multiple first resource sets that have the same QCL parameters, are associated with the same index value, correspond to the same resource subgroup, or correspond to different time resources to obtain the measurement quantity; and / or, Measurements are performed on resources in multiple first resource sets that are associated with the same index value, correspond to the same resource subgroup, or correspond to different time resources, to obtain the measurement quantity; and / or, Measurements are performed on resources in multiple first resource sets that have different QCL parameters, are associated with different index values, correspond to different resource subgroups, or correspond to the same time resource, to obtain the measurement quantity; and / or, The measurement quantity is obtained by measuring resources in multiple first resource sets that are associated with different index values, different resource subgroups, or the same time resource.

[0207] In some embodiments, the processor 1510 is further configured to: Select one or more resources as reference resources from multiple first resource sets that have the same QCL parameters, are associated with the same index value, correspond to the same resource subgroup, or correspond to different time resources; The measurement quantity is obtained by measuring other resources besides the reference resource in the reference resource and multiple first resource sets that have the same QCL parameters, are associated with the same index value, correspond to the same resource subgroup, or correspond to different time resources.

[0208] In some embodiments, the processor 1510 is further configured to: One or more first resource sets are selected as reference resource sets from multiple first resource sets that are associated with the same index value, correspond to the same resource subgroup, or correspond to different time resources; The resources in the reference resource set and the resources in other resource sets of multiple first resource sets that are associated with the same index value, correspond to the same resource subgroup, or correspond to different time resources, are measured to obtain the measurement quantity.

[0209] In some embodiments, the measurement includes a phase difference, which is a first phase difference; the processor 1510 is also used for at least one of the following: Multiple first phase differences are reported to the network-side device, where one delay value corresponds to one or more first phase differences. This delay value is configured by the network-side device and is the time interval corresponding to the reported measurement. Report multiple delay values ​​to the network-side device, along with at least two first phase differences corresponding to each delay value, wherein the number of first phase differences corresponding to each delay value is the same; The network-side device reports multiple delay values, as well as at least two first phase differences corresponding to each delay value, with a different number of first phase differences corresponding to each delay value; Report multiple delay values ​​to the network-side device, as well as a precoding matrix consisting of at least two first phase differences corresponding to each delay value.

[0210] In some embodiments, the measurement includes a TDCP value, which includes TDCP amplitude and / or TDCP phase; the processor 1510 is also used for at least one of the following: Multiple TDCP values ​​are reported to the network-side device, where one latency value corresponds to one or more TDCP values. This latency value is configured by the network-side device and is the time interval corresponding to the reported measurement. Report one or more latency values, along with multiple TDCP values ​​corresponding to each latency value, to the network-side device; Report multiple TDCP values ​​and multiple first phase differences to the network-side equipment; Report one or more delay values ​​to the network-side device, and multiple TDCP values ​​and multiple first phase differences corresponding to each delay value.

[0211] In some embodiments, the processor 1510 is further configured to: Determine the quantization range of the measured quantity; Within this quantization range, the measurement quantity is quantized to obtain the quantized measurement quantity. The quantized measurement is reported to the network-side device.

[0212] In some embodiments, the measurement includes frequency difference or time delay difference; the processor 1510 is further configured to: Determine the phase difference corresponding to the measured quantity; The phase difference corresponding to the measured quantity is modulo 2π to obtain the processed result; Based on the processing results, the quantization range of the measurement quantity is determined.

[0213] In some embodiments, the measurement includes frequency difference or time delay difference; the processor 1510 is further configured to: Determine the multiple and remainder of the measurement relative to the quantization range; Within this quantization range, the remainder is quantized to obtain the quantized value; Report the multiplier value and the quantization value to the network-side device.

[0214] In some embodiments, the measurement includes a frequency difference; the processor 1510 is also used for at least one of the following: The quantization range of this frequency difference is determined based on the subcarrier spacing; Based on the center frequency, determine the quantization range of the frequency difference. This center frequency can be the current center frequency, the center frequency configured on the network side, or a predefined center frequency. The quantization range of the frequency difference is determined based on the high-layer parameters configured on the network side.

[0215] In some embodiments, the measurement includes a frequency difference; the processor 1510 is also used for at least one of the following: The quantization range of the delay difference is determined based on the subcarrier spacing; The quantification range of the delay difference is determined based on the reported detail of the delay difference.

[0216] In some embodiments, the processor 1510 is further configured to: If the first resource set is singular, each group of resources in the first resource set is determined based on first information; wherein the first information includes one or more of the following: Time-domain dependent parameters; Resource identifier; Measurement configuration sequence; Group information configured on network-side devices.

[0217] In some embodiments, the first information includes time-domain related parameters, which include resource transmission slot information or slot offset configuration; the processor 1510 is further configured to: The resources within a time slot in the first resource set are defined as a group of resources; or, Resources with the same slot offset value in the first resource set are grouped together; or, Resources in the first resource set whose configured slot offset values ​​differ from the first threshold are identified as a group of resources.

[0218] In some embodiments, each group of measurement resources has the same time slot offset value or is configured in the same time slot.

[0219] In some embodiments, the time interval between the first resource in two consecutive sets of resources is greater than or equal to a first preset time slot value.

[0220] In some embodiments, the first resource is one or more of the following: The resource with the smallest identifier value in each resource group; The resource with the highest identifier value in each resource group; The first resource configured in each resource group; The resource with the smallest time slot offset value in each resource group; The resource with the largest slot offset value in each resource group.

[0221] In some embodiments, the time interval between the last resource in each group and the last resource in the previous group is greater than or equal to a second preset time slot value; or, The time interval between the first resource in each resource group and the last resource in the previous resource group is greater than or equal to the third preset time slot value; or, The time interval between the last resource in two consecutive resource groups is greater than or equal to the fourth preset time slot value.

[0222] In some embodiments, the nth resource in each group of resources is one or more of the following: In each group of resources, the resource identifier values ​​are arranged in ascending order, and the resource is the nth one. In each group of resources, the resource identifier values ​​are arranged in descending order, and the resource is the nth one in the list; The resource in each group is arranged in the order of resource allocation, and is the nth resource. Within each group of resources, the resources are arranged in ascending order of their time slot offset values, with the nth resource being the first one in the group. The resource in each group is arranged in descending order of its time slot offset value, and is the nth resource.

[0223] The terminal in this embodiment of the invention receives one or more first resource sets sent by a network-side device. These first resource sets are either Tracking Reference Signal (TRS) resource sets or Channel Status Information (CSI) resource sets. If multiple first resource sets are received from the network-side device, the terminal measures the resources within these sets to obtain measurement quantities. In these multiple first resource sets, some resources have the same QCL parameters, the same associated index values, the same corresponding resource subgroups, or different corresponding time resources; others have different QCL parameters, different associated index values, different corresponding resource subgroups, or the same corresponding time resources. This determines the correspondence between the first resource sets and the TRP, or the correspondence with different times, to facilitate multi-time tracking. Measurement reporting between TRPs, measurement reporting at different times within the same TRP; finally, reporting the measurement quantity to the network-side device; the measurement quantity includes at least one of the following: frequency difference, delay difference, phase difference, and TDCP amplitude; or, if the first resource set sent by the network-side device is one, measuring at least one group of resources in the first resource set to obtain the measurement quantity; thereby determining the correspondence between each group of resources in the first resource set and the antenna port; so as to facilitate measurement reporting of more ports; finally, reporting the measurement quantity to the network-side device, the measurement quantity including the precoding matrix indicator (PMI); thus, since the measurement quantity reported by the terminal includes the measurement quantity measured between multiple TRPs, the network-side device is assisted in reducing or eliminating the impact of time-frequency synchronization error or reciprocity error based on the reported measurement quantity.

[0224] As shown in Figure 16, this embodiment of the invention also provides a measurement reporting device, including: The first receiving unit 1601 is configured to receive one or more first resource sets sent by the network-side device, wherein the first resource set is a Tracking Reference Signal (TRS) resource set or a Channel Status Information (CSI) resource set; The first measurement unit 1602 is configured to measure the resources in the multiple first resource sets sent by the network-side device to obtain a measurement quantity when multiple first resource sets are received; wherein, in the multiple first resource sets, some resources have the same QCL parameters, the same associated index values, the same corresponding resource subgroups, or different corresponding time resources; and some resources have different QCL parameters, different associated index values, different corresponding resource subgroups, or the same corresponding time resources. The first reporting unit 1603 is used to report the measurement quantity to the network-side device; wherein the measurement quantity includes at least one of the following: frequency difference, delay difference, phase difference, and TDCP amplitude; or, The second measurement unit 1604 is used to measure each resource group of at least one resource group in the first resource set when the first resource set sent by the network-side device is a single set, and to obtain the measurement quantity; The second reporting unit 1605 is used to report the measurement to the network-side device, the measurement including at least the precoding matrix indication (PMI).

[0225] In some embodiments, the plurality of first resource sets include: No. The first resource set to the first All resources in the first resource set have the same QCL parameter or the first... The first resource set to the first Each of the first resource sets corresponds to a different time resource, where i = 1, 2…K, and N and K are positive integers greater than or equal to 1; and / or, The j-th first resource set, the A first resource set, ... All resources in the j-th first resource set have the same QCL parameter, or the j-th first resource set, ... A first resource set, ... Each of the first resource sets corresponds to a different time resource, where j = 1, 2, ..., K; and / or, The (p-1)K+1th first resource set to the p×Kth first resource set correspond to the same time resource, or all resources within the same first resource set from the (p-1)K+1th to the p×Kth first resource sets have the same QCL parameter. Different first resource sets and resources have different QCL parameters, where p = 1, 2…N; and / or, The q-th first resource set, the (q+N)-th first resource set, ..., the (q+(K-1)N)-th first resource set correspond to the same time resource, or all resources within the same first resource set in the q-th first resource set, the (q+N)-th first resource set, ..., the (q+(K-1)N)-th first resource set have the same QCL parameter. The QCL parameters of resources in different first resource sets are different, where q = 1, 2, ..., N.

[0226] In some embodiments, the plurality of first resource sets include: All resources within the same first resource set have the same QCL parameter; resources in different first resource sets have different QCL parameters; or, Each subset of resources within this first resource set has different QCL parameters; or, The same first resource set is associated with the same index value, and different first resource sets are associated with different index values; or, The same first resource set corresponds to the same resource subgroup, or the same resource subgroup corresponds to the same time resource.

[0227] In some embodiments, the measuring unit 1602 is specifically used for: Measurements are performed on resources in multiple first resource sets that have the same QCL parameters, are associated with the same index value, correspond to the same resource subgroup, or correspond to different time resources to obtain the measurement quantity; and / or, Measurements are performed on resources in multiple first resource sets that are associated with the same index value, correspond to the same resource subgroup, or correspond to different time resources, to obtain the measurement quantity; and / or, Measurements are performed on resources in multiple first resource sets that have different QCL parameters, are associated with different index values, correspond to different resource subgroups, or correspond to the same time resource, to obtain the measurement quantity; and / or, The measurement quantity is obtained by measuring resources in multiple first resource sets that are associated with different index values, different resource subgroups, or the same time resource.

[0228] In some embodiments, the measuring unit 1602 is specifically used for: Select one or more resources as reference resources from multiple first resource sets that have the same QCL parameters, are associated with the same index value, correspond to the same resource subgroup, or correspond to different time resources; The measurement quantity is obtained by measuring other resources besides the reference resource in the reference resource and multiple first resource sets that have the same QCL parameters, are associated with the same index value, correspond to the same resource subgroup, or correspond to different time resources.

[0229] In some embodiments, the measuring unit 1602 is specifically used for: One or more first resource sets are selected as reference resource sets from multiple first resource sets that are associated with the same index value, correspond to the same resource subgroup, or correspond to different time resources; The resources in the reference resource set and the resources in other resource sets of multiple first resource sets that are associated with the same index value, correspond to the same resource subgroup, or correspond to different time resources, are measured to obtain the measurement quantity.

[0230] In some embodiments, the measurement includes a phase difference, which is a first phase difference; correspondingly, the first reporting unit 1603 is specifically used for at least one of the following: Multiple first phase differences are reported to the network-side device, where one delay value corresponds to one or more first phase differences. This delay value is configured by the network-side device and is the time interval corresponding to the reported measurement. Report multiple delay values ​​to the network-side device, along with at least two first phase differences corresponding to each delay value, wherein the number of first phase differences corresponding to each delay value is the same; The network-side device reports multiple delay values, as well as at least two first phase differences corresponding to each delay value, with a different number of first phase differences corresponding to each delay value; Report multiple delay values ​​to the network-side device, as well as a precoding matrix consisting of at least two first phase differences corresponding to each delay value.

[0231] In some embodiments, the measurement includes a TDCP value, which includes TDCP amplitude and / or TDCP phase; correspondingly, the reporting unit 1603 is specifically used for at least one of the following: Multiple TDCP values ​​are reported to the network-side device, where one latency value corresponds to one or more TDCP values. This latency value is configured by the network-side device and is the time interval corresponding to the reported measurement. Report one or more latency values, along with multiple TDCP values ​​corresponding to each latency value, to the network-side device; Report multiple TDCP values ​​and multiple first phase differences to the network-side equipment; Report one or more delay values ​​to the network-side device, and multiple TDCP values ​​and multiple first phase differences corresponding to each delay value.

[0232] In some embodiments, the apparatus of the present invention further includes: The first processing unit is used to determine the quantization range of the measured quantity; The second processing unit is used to quantize the measurement quantity within the quantization range to obtain the quantized measurement quantity. Accordingly, the first reporting unit 1603 is specifically used for: The quantized measurement is reported to the network-side device.

[0233] In some embodiments, the measurement quantity includes frequency difference or time delay difference; the first processing unit is specifically used for: Determine the phase difference corresponding to the measured quantity; The phase difference corresponding to the measured quantity is modulo 2π to obtain the processed result; Based on the processing results, the quantization range of the measurement quantity is determined.

[0234] In some embodiments, the measurement quantity includes frequency difference or time delay difference; the second processing unit is specifically used for: Determine the multiple and remainder of the measurement relative to the quantization range; Within this quantization range, the remainder is quantized to obtain the quantized value; Accordingly, the first reporting unit 1603 is specifically used for: Report the multiplier value and the quantization value to the network-side device.

[0235] In some embodiments, the measurement includes a frequency difference; the first processing unit is specifically used for at least one of the following: The quantization range of this frequency difference is determined based on the subcarrier spacing; Based on the center frequency, determine the quantization range of the frequency difference. This center frequency can be the current center frequency, the center frequency configured on the network side, or a predefined center frequency. The quantization range of the frequency difference is determined based on the high-layer parameters configured on the network side.

[0236] In some embodiments, the measurement includes a time delay difference; the first processing unit is specifically used for at least one of the following: The quantization range of the delay difference is determined based on the subcarrier spacing; The quantification range of the delay difference is determined based on the reported detail of the delay difference.

[0237] In some embodiments, the apparatus of the present invention further includes: The third processing unit is configured to, when the first resource set is one, determine each group of resources in the first resource set based on first information; wherein the first information includes one or more of the following: Time-domain dependent parameters; Resource identifier; Measurement configuration sequence; Group information configured on network-side devices.

[0238] In some embodiments, the first information includes time-domain related parameters, which include resource transmission slot information or slot offset configuration; correspondingly, the third processing unit is specifically used for: The resources within a time slot in the first resource set are defined as a group of resources; or, Resources with the same slot offset value in the first resource set are grouped together; or, Resources in the first resource set whose configured slot offset values ​​differ from the first threshold are identified as a group of resources.

[0239] In some embodiments, each group of resources has the same time slot offset value or is configured in the same time slot.

[0240] In some embodiments, the time interval between the first resource in two consecutive sets of resources is greater than or equal to a first preset time slot value.

[0241] In some embodiments, the first resource is one or more of the following: The resource with the smallest identifier value in each resource group; The resource with the highest identifier value in each resource group; The first resource configured in each resource group; The resource with the smallest time slot offset value in each resource group; The resource with the largest slot offset value in each resource group.

[0242] In some embodiments, the time interval between the last resource in each group and the last resource in the previous group is greater than or equal to a second preset time slot value; or, The time interval between the first resource in each resource group and the last resource in the previous resource group is greater than or equal to the third preset time slot value; or, The time interval between the last resource in two consecutive resource groups is greater than or equal to the fourth preset time slot value.

[0243] In some embodiments, the nth resource in each group of resources is one or more of the following: In each group of resources, the resource identifier values ​​are arranged in ascending order, and the resource is the nth one. In each group of resources, the resource identifier values ​​are arranged in descending order, and the resource is the nth one in the list; The resource in each group is arranged in the order of resource allocation, and is the nth resource. Within each group of resources, the resources are arranged in ascending order of their time slot offset values, with the nth resource being the first one in the group. The resource in each group is arranged in descending order of its time slot offset value, and is the nth resource.

[0244] The measurement reporting device of this invention receives one or more first resource sets sent by a network-side device. These first resource sets are either Tracking Reference Signal (TRS) resource sets or Channel Status Information (CSI) resource sets. If multiple first resource sets are received from the network-side device, the device measures the resources within these sets to obtain measurement quantities. In these multiple first resource sets, some resources have the same QCL parameters, the same associated index values, the same corresponding resource subgroups, or different corresponding time resources; others have different QCL parameters, different associated index values, different corresponding resource subgroups, or the same corresponding time resources. This determines the correspondence between the first resource sets and the TRP, or the correspondence between them and different times, to facilitate implementation. The measurement is reported between multiple TRPs and at different times within the same TRP. Finally, the measurement is reported to the network-side device. The measurement includes at least one of the following: frequency difference, delay difference, phase difference, and TDCP amplitude. Alternatively, if the first resource set sent by the network-side device is a single set, at least one group of resources in the first resource set is measured to obtain the measurement. This determines the correspondence between each group of resources in the first resource set and the antenna port, facilitating measurement reporting from more ports. Finally, the measurement is reported to the network-side device, and the measurement includes at least the Precoding Matrix Indicator (PMI). Thus, since the measurement reported by the terminal includes measurements between multiple TRPs, the network-side device is assisted in reducing or eliminating the impact of time-frequency synchronization errors or reciprocity errors based on the reported measurement.

[0245] It should be noted that the division of units in the embodiments of the present invention is illustrative and only represents one logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist as a separate entity, or two or more units can be integrated into one unit. The integrated units described above can be implemented in hardware or as software functional units.

[0246] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of this invention, in essence, or the part that contributes to related technologies, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the measurement reporting method described in the various embodiments of this invention. The aforementioned storage medium includes: USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, optical disks, and other media capable of storing program code.

[0247] It should be noted that the apparatus provided in this embodiment of the invention can implement all the method steps implemented in the above method embodiment and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0248] In some embodiments of the present invention, a processor-readable storage medium is also provided, which stores program instructions for causing the processor to perform the following steps: Receive one or more first resource sets sent by the network-side device, wherein the first resource set is a Tracking Reference Signal (TRS) resource set or a Channel Status Information (CSI) resource set; When multiple first resource sets are received from the network-side device, the resources in these multiple first resource sets are measured to obtain a measurement quantity. Among these multiple first resource sets, some resources have the same QCL parameters, the same associated index value, the same corresponding resource subgroup, or different corresponding time resources; others have different QCL parameters, different associated index values, different corresponding resource subgroups, or the same corresponding time resources. The measurement quantity is reported to the network-side device. The measurement quantity includes at least one of the following: frequency difference, delay difference, phase difference, and TDCP amplitude. If the first resource set received from the network-side device is one, at least one group of resources in the first resource set is measured to obtain a measurement quantity; the measurement quantity is reported to the network-side device; the measurement quantity includes at least a precoding matrix indicator (PMI).

[0249] When the program is executed by the processor, it can implement all the above-described implementation methods applied to the measurement reporting method embodiment on the terminal side as shown in Figure 1. To avoid repetition, it will not be described again here.

[0250] As shown in Figure 17, this embodiment of the invention also provides a network-side device, including: a memory 1720, a transceiver 1700, and a processor 1710: the memory 1720 is used to store computer programs; the transceiver 1700 is used to send and receive data under the control of the processor 1710, and the processor 1710 performs the following operations: One or more first resource sets for measurement are sent to the terminal. These first resource sets are either Tracking Reference Signal (TRS) resource sets or Channel Status Information (CSI) resource sets. When multiple first resource sets are sent to the terminal, some resources in these sets have the same QCL parameters, the same associated index values, the same corresponding resource subgroups, or different corresponding time resources; others have different QCL parameters, different associated index values, different corresponding resource subgroups, or the same corresponding time resources. Alternatively, when only one first resource set is sent to the terminal, at least one set of resources in this first resource set is used for measurement. Receive the measurement quantities reported by the terminal; wherein the measurement quantities include at least one of the following: frequency difference, time delay difference, phase difference, TDCP amplitude and precoding matrix indicator PMI.

[0251] In Figure 17, the bus architecture may include any number of interconnected buses and bridges, specifically various circuits connected together by one or more processors represented by processor 1710 and memory represented by memory 1720. The bus architecture may also connect various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be further described here. A bus interface provides an interface. Transceiver 1700 may be multiple components, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, including wireless channels, wired channels, optical fibers, etc. Processor 1710 is responsible for managing the bus architecture and general processing, and memory 1720 may store data used by processor 1710 during operation.

[0252] The processor 1710 can be a central processing unit (CPU), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor can also adopt a multi-core architecture.

[0253] In some embodiments, the processor 1710 is further configured to: Configure K×N first resource sets for this terminal, where K and N are both positive integers greater than 1; or, Configure K first resource sets for this terminal.

[0254] In some embodiments, the processor 1710 is also used for Configuration number The first resource set to the first All resources in the first resource set have the same QCL parameter or the first... The first resource set to the first Each of the first resource sets corresponds to a different time resource, where i = 1, 2…K, and N and K are positive integers greater than or equal to 1; and / or, Configure the j-th first resource set, ... A first resource set, ... All resources in the j-th first resource set have the same QCL parameter, or the j-th first resource set, ... A first resource set, ... Each of the first resource sets corresponds to a different time resource, where j = 1, 2, ..., K; and / or, Configure the (p-1)K+1th first resource set to the p×Kth first resource set to correspond to the same time resource, or configure all resources within the same first resource set from the (p-1)K+1th to the p×Kth first resource set to have the same QCL parameter. Different first resource sets and resources have different QCL parameters, where p=1, 2…N; and / or, Configure the q-th first resource set, the (q+N)-th first resource set, ..., the (q+(K-1)N)-th first resource set to correspond to the same time resource, or configure all resources within the same first resource set in the q-th first resource set, the (q+N)-th first resource set, ..., the (q+(K-1)N)-th first resource set to have the same QCL parameter. Different first resource sets and resources have different QCL parameters, where q = 1, 2, ..., N.

[0255] In some embodiments, when K first resource sets are configured for the terminal, all resources within the same first resource set have the same QCL parameter, while the QCL parameters of resources in different first resource sets are different; or, Each subset of resources within this first resource set has different QCL parameters; or, The same first resource set is associated with the same index value, and different first resource sets are associated with different index values; or, The same first resource set corresponds to the same resource subgroup, or the same resource subgroup corresponds to the same time resource.

[0256] In some embodiments, the processor 1710 is further configured to: Configure each group of resources in the first resource set according to the first information; wherein the first information includes one or more of the following: Time-domain dependent parameters; Resource identifier; Measurement configuration sequence; Explicitly configured group information.

[0257] In some embodiments, the first information includes time-domain related parameters, which include resource transmission slot information or slot offset configuration; the processor 1710 is further configured to: Configure the resources within a time slot in the first resource set as a group of resources; or, Resources with the same slot offset value in the first resource set are configured as a group of resources; or, Resources in the first resource set whose time slot offset values ​​differ from the first threshold are configured as a group of resources.

[0258] In some embodiments, each group of measurement resources has the same time slot offset value or is configured in the same time slot.

[0259] In some embodiments, the time interval between the first resource in two consecutive sets of resources is greater than or equal to a first preset time slot value.

[0260] In some embodiments, the first resource is one or more of the following: The resource with the smallest identifier value in each resource group; The resource with the highest identifier value in each resource group; The first resource configured in each resource group; The resource with the smallest time slot offset value in each resource group; The resource with the largest slot offset value in each resource group.

[0261] In some embodiments, the time interval between the last resource in each group and the last resource in the previous group is greater than or equal to a second preset time slot value; or, The time interval between the first resource in each resource group and the last resource in the previous resource group is greater than or equal to the third preset time slot value; or, The time interval between the last resource in two consecutive resource groups is greater than or equal to the fourth preset time slot value.

[0262] In some embodiments, the nth resource in each group of resources is one or more of the following: In each group of resources, the resource identifier values ​​are arranged in ascending order, and the resource is the nth one. In each group of resources, the resource identifier values ​​are arranged in descending order, and the resource is the nth one in the list; The resource in each group is arranged in the order of resource allocation, and is the nth resource. Within each group of resources, the resources are arranged in ascending order of their time slot offset values, with the nth resource being the first one in the group. The resource in each group is arranged in descending order of its time slot offset value, and is the nth resource.

[0263] The network-side device in this embodiment of the invention sends one or more first resource sets for measurement to the terminal. These first resource sets are either Tracking Reference Signal (TRS) resource sets or Channel Status Information (CSI) resource sets. When multiple first resource sets are sent to the terminal, some resources in these sets have the same QCL parameters, the same associated index values, the same corresponding resource subgroups, or different corresponding time resources; other resources have different QCL parameters, different associated index values, different corresponding resource subgroups, or the same corresponding time resources. This allows the terminal to determine the correspondence between the first resource set and the antenna port, facilitating measurement reporting from more ports; or, when the first resource set sent to the terminal is one, at least one set of resources in the first resource set is used for measurement; then, the measurement quantity reported by the terminal is received; the measurement quantity includes at least one of the following: frequency difference, delay difference, phase difference, TDCP amplitude, and precoding matrix indicator (PMI); thus, since the measurement quantity reported by the terminal includes measurements between multiple TRPs, the network-side equipment can eliminate the influence of time-frequency synchronization error or reciprocity error based on the reported measurement quantity.

[0264] As shown in Figure 18, this invention also provides a measurement reporting device, comprising: The first transmitting unit 1801 is configured to transmit one or more first resource sets for measurement to the terminal. The first resource sets are either Tracking Reference Signal (TRS) resource sets or Channel Status Information (CSI) resource sets. When multiple first resource sets are transmitted to the terminal, some resources in these sets have the same QCL parameters, the same associated index values, the same corresponding resource subgroups, or different corresponding time resources; other resources have different QCL parameters, different associated index values, different corresponding resource subgroups, or the same corresponding time resources. Alternatively, when only one first resource set is transmitted to the terminal, at least one set of resources in that first resource set is used for measurement. The second receiving unit 1802 is used to receive the measurement quantities reported by the terminal; wherein the measurement quantities include at least one of the following: frequency difference, time delay difference, phase difference, TDCP amplitude and precoding matrix indicator PMI.

[0265] In some embodiments, the apparatus of the present invention further includes: The first configuration unit is used to configure K×N first resource sets for the terminal, where K and N are both positive integers greater than 1; or, The second configuration unit is used to configure K first resource sets for the terminal.

[0266] In some embodiments, the first configuration unit has the following features: Configuration number The first resource set to the first All resources in the first resource set have the same QCL parameter or the first... The first resource set to the first Each of the first resource sets corresponds to a different time resource, where i = 1, 2…K, and N and K are positive integers greater than or equal to 1; and / or, Configure the j-th first resource set, ... A first resource set, ... All resources in the j-th first resource set have the same QCL parameter, or the j-th first resource set, ... A first resource set, ... Each of the first resource sets corresponds to a different time resource, where j = 1, 2, ..., K; and / or, Configure the (p-1)K+1th first resource set to the p×Kth first resource set to correspond to the same time resource, or configure all resources within the same first resource set from the (p-1)K+1th to the p×Kth first resource set to have the same QCL parameter. Different first resource sets and resources have different QCL parameters, where p=1, 2…N; and / or, Configure the q-th first resource set, the (q+N)-th first resource set, ..., the (q+(K-1)N)-th first resource set to correspond to the same time resource, or configure all resources within the same first resource set in the q-th first resource set, the (q+N)-th first resource set, ..., the (q+(K-1)N)-th first resource set to have the same QCL parameter. Different first resource sets and resources have different QCL parameters, where q = 1, 2, ..., N.

[0267] In some embodiments, when K first resource sets are configured for the terminal, All resources within the same first resource set have the same QCL parameter; resources in different first resource sets have different QCL parameters; or, Each subset of resources within this first resource set has different QCL parameters; or, The same first resource set is associated with the same index value, and different first resource sets are associated with different index values; or, The same first resource set corresponds to the same resource subgroup, or the same resource subgroup corresponds to the same time resource.

[0268] In some embodiments, the apparatus of the present invention further includes: The third configuration unit is configured to configure each group of resources in the first resource set according to the first information; wherein the first information includes one or more of the following: Time-domain dependent parameters; Resource identifier; Measurement configuration sequence; Explicitly configured group information.

[0269] In some embodiments, the first information includes time-domain related parameters, which include resource transmission slot information or slot offset configuration; correspondingly, the third configuration unit is specifically used for: Configure the resources within a time slot in the first resource set as a group of resources; or, Resources with the same slot offset value in the first resource set are configured as a group of resources; or, Resources in the first resource set whose time slot offset values ​​differ from the first threshold are configured as a group of resources.

[0270] In some embodiments, each group of measurement resources has the same time slot offset value or is configured in the same time slot.

[0271] In some embodiments, the time interval between the first resource in two consecutive sets of resources is greater than or equal to a first preset time slot value.

[0272] In some embodiments, the first resource is one or more of the following: The resource with the smallest identifier value in each resource group; The resource with the highest identifier value in each resource group; The first resource configured in each resource group; The resource with the smallest time slot offset value in each resource group; The resource with the largest slot offset value in each resource group.

[0273] In some embodiments, the time interval between the last resource in each group and the last resource in the previous group is greater than or equal to a second preset time slot value; or, The time interval between the first resource in each resource group and the last resource in the previous resource group is greater than or equal to the third preset time slot value; or, The time interval between the last resource in two consecutive resource groups is greater than or equal to the fourth preset time slot value.

[0274] In some embodiments, the nth resource in each group of resources is one or more of the following: In each group of resources, the resource identifier values ​​are arranged in ascending order, and the resource is the nth one. In each group of resources, the resource identifier values ​​are arranged in descending order, and the resource is the nth one in the list; The resource in each group is arranged in the order of resource allocation, and is the nth resource. Within each group of resources, the resources are arranged in ascending order of their time slot offset values, with the nth resource being the first one in the group. The resource in each group is arranged in descending order of its time slot offset value, and is the nth resource.

[0275] The measurement reporting device of this invention sends one or more first resource sets for measurement to a terminal. These first resource sets are either Tracking Reference Signal (TRS) resource sets or Channel Status Information (CSI) resource sets. When multiple first resource sets are sent to the terminal, some resources in these sets have the same QCL parameters, the same associated index values, the same corresponding resource subgroups, or different corresponding time resources; others have different QCL parameters, different associated index values, different corresponding resource subgroups, or the same corresponding time resources. This allows the terminal to determine the correspondence between the first resource set and the TRP, or the correspondence between the first resource set and different time periods. The system is configured to facilitate measurement reporting between multiple TRPs and measurement reporting at different times within the same TRP; or, when the first resource set sent to the terminal is one, at least one set of resources in the first resource set is used for measurement; thereby enabling the terminal to determine the correspondence between each set of resources in the first resource set and the antenna port; in order to facilitate measurement reporting for more ports; then, the measurement quantity reported by the terminal is received; the measurement quantity includes at least one of the following: frequency difference, delay difference, phase difference, TDCP amplitude, and precoding matrix indicator (PMI); thus, since the reported measurement quantity includes the measurement quantity measured between multiple TRPs, the network-side equipment can eliminate the influence of time-frequency synchronization error or reciprocity error based on the reported measurement quantity.

[0276] It should be noted that the division of units in the embodiments of the present invention is illustrative and only represents one logical functional division. In actual implementation, other division methods may be used. Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist as a separate entity, or two or more units can be integrated into one unit. The integrated units described above can be implemented in hardware or as software functional units.

[0277] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of this invention, in essence, or the part that contributes to related technologies, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the measurement reporting method described in the various embodiments of this invention. The aforementioned storage medium includes: USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, optical disks, and other media capable of storing program code.

[0278] It should be noted that the apparatus provided in this embodiment of the invention can implement all the method steps implemented in the above method embodiment and can achieve the same technical effect. Therefore, the parts and beneficial effects that are the same as those in the method embodiment will not be described in detail here.

[0279] In some embodiments of the present invention, a processor-readable storage medium is also provided, which stores program instructions for causing the processor to perform the following steps: One or more first resource sets for measurement are sent to the terminal. These first resource sets are either Tracking Reference Signal (TRS) resource sets or Channel Status Information (CSI) resource sets. When multiple first resource sets are sent to the terminal, some resources in these sets have the same QCL parameters, the same associated index values, the same corresponding resource subgroups, or different corresponding time resources; others have different QCL parameters, different associated index values, different corresponding resource subgroups, or the same corresponding time resources. Alternatively, when only one first resource set is sent to the terminal, at least one set of resources in this first resource set is used for measurement. Receive the measurement quantities reported by the terminal; wherein the measurement quantities include at least one of the following: frequency difference, time delay difference, phase difference, TDCP amplitude and precoding matrix indicator PMI.

[0280] When the program is executed by the processor, it can implement all the above-described implementation methods applied to the measurement reporting method embodiment on the network-side device side as shown in Figure 14. To avoid repetition, it will not be described again here.

[0281] In some embodiments of the present invention, a computer program product is also provided, including computer instructions. When the computer instructions are executed by a processor, they implement the various processes of the measurement reporting method embodiment shown in FIG1 or FIG14 and can achieve the same technical effect. To avoid repetition, they will not be described again here.

[0282] The technical solutions provided in this invention are applicable to a variety of systems, especially 5G and above systems. For example, applicable systems include Global System for Mobile Communication (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS), Long Term Evolution (LTE), LTE Frequency Division Duplex (FDD), LTE Time Division Duplex (TDD), Long Term Evolution Advanced (LTE-A), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX), and 5G New Radio (NR). All of these systems include terminal equipment and network equipment. The system may also include a core network component, such as an evolved packet system (EPS) or a 5G system (5GS).

[0283] The terminal device described in this embodiment of the invention 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 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, wireless 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 terminal, remote station, access point, remote terminal, access terminal, user terminal, user agent, or user device, but is not limited to these terms in this embodiment of the invention.

[0284] The network device described in this embodiment of the invention can be a base station, which may include multiple cells providing services to terminals. Depending on the specific application, a base station may also be called an access point, or a device in an access network that communicates with wireless terminal devices via one or more magnetic zones on the air interface, or other names. The network device can be used to exchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, where the rest of the access network may include an Internet Protocol (IP) communication network. The network device can also coordinate the attribute management of the air interface. For example, the network equipment described in this embodiment of the invention can be a Base Transceiver Station (BTS) in a Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA) system, a NodeB in a Wide-band Code Division Multiple Access (WCDMA) system, an evolved Node B (eNB or e-NodeB) in a Long Term Evolution (LTE) system, a 5G base station (gNB) in a next-generation 5G network architecture, a Home evolved Node B (HeNB), a relay node, a femto, a pico, etc., and is not limited in this embodiment of the invention. In some network structures, the network equipment may include Centralized Unit (CU) nodes and Distributed Unit (DU) nodes, and the Centralized Unit and Distributed Unit may be geographically separated.

[0285] Network devices and terminal devices 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 two-dimensional MIMO (2D-MIMO), three-dimensional MIMO (3D-MIMO), full-dimensional MIMO (FD-MIMO), or massive MIMO. It can also be diversity transmission, pre-coded transmission, or beamforming transmission, etc.

[0286] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, systems, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, magnetic disk memory and optical memory) containing computer-usable code.

[0287] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing device, create means for implementing the functions specified in one or more blocks of the flowchart illustrations and / or one or more blocks of the block diagrams.

[0288] These processor-executable instructions may also be stored in processor-readable memory that can instruct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means that implement the functions specified in one or more flowcharts and / or one or more block diagrams.

[0289] These processor-executable instructions can also be loaded onto a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce computer-implemented processing, such that the instructions, which execute on the computer or other programmable device, provide steps for implementing the functions specified in one or more flowcharts and / or one or more block diagrams.

[0290] It should be noted that the above division of modules is merely a logical functional division. In actual implementation, they can be fully or partially integrated into a single entity, or they can be implemented separately. These modules can be implemented entirely in software via processing elements; they can be fully implemented in hardware; or some modules can be implemented by processing elements calling software, while others are implemented in hardware. For example, a module can be a separate processing element, or it can be integrated into a chip within the aforementioned device. Alternatively, it can be stored as program code in the memory of the aforementioned device, and its functions can be called and executed by a processing element of the device. The implementation of other modules is similar. Furthermore, these modules can be fully or partially integrated together, or they can be implemented independently. The processing element mentioned here can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each of the above modules can be completed through integrated logic circuits in the hardware of the processor element or through software instructions.

[0291] For example, each module, unit, sub-unit, or sub-module can be one or more integrated circuits configured to implement the above methods, such as one or more Application Specific Integrated Circuits (ASICs), one or more digital signal processors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs). Furthermore, when a module is implemented using processing element scheduling code, the processing element can be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling the code. Additionally, these modules can be integrated together as a System-On-a-Chip (SOC).

[0292] The terms "first," "second," etc., used in the specification and claims of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such use of information can be interchanged where appropriate so that embodiments of the invention described herein are implemented, for example, in a sequence other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus. Additionally, the use of "and / or" in the specification and claims of this invention indicates at least one of the connected objects, for example, A and / or B and / or C, indicating seven possibilities: A alone, B alone, C alone, A and B both present, B and C both present, A and C both present, and A, B, and C all present. Similarly, the phrase "at least one of A and B" used in this specification and in the claims should be understood as "A alone, B alone, or both A and B are present".

[0293] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

[0294] 1500: Transceiver 1510: Processor 1520: Memory 1530: User Interface 1601: First Receiving Unit 1602: First Measurement Unit 1603: First Reporting Unit 1604: Second Measurement Unit 1605: Second Reporting Unit 1700: Transceiver 1710: Processor 1720: Memory 1801: First Transmitting Unit 1802: Second Receiving Unit 101~103: Steps 1401~1402: Steps

Claims

1. A measurement reporting method, applied to a terminal, the measurement reporting method comprising: The system receives one or more first resource sets sent by a network-side device, where the first resource set is a Tracking Reference Signal (TRS) resource set or a Channel Status Information (CSI) resource set. If multiple first resource sets are received from the network-side device, the system measures the resources in these multiple first resource sets to obtain a measurement quantity. Among these multiple first resource sets, some resources have the same QCL parameters, the same associated index value, the same corresponding resource subgroup, or different corresponding time resources; others have different QCL parameters, different associated index values, different corresponding resource subgroups, or the same corresponding time resources. The system reports the measurement quantity to the network-side device. The measurement quantity includes at least one of the following: frequency difference, delay difference, phase difference, and TDCP amplitude. If only one first resource set is received from the network-side device, the system measures at least one group of resources in the first resource set to obtain a measurement quantity. The system reports the measurement quantity to the network-side device. The measurement quantity includes at least a Precoding Matrix Indicator (PMI).

2. The measurement reporting method as described in request item 1, wherein, In the multiple first resource sets: all resources in the i-th first resource set to the i-th first resource set have the same QCL parameter, or the i-th first resource set to the i-th first resource set correspond to different time resources, where i = 1, 2…K, and N and K are positive integers greater than or equal to 1; and / or, all resources in the j-th first resource set, the j-th first resource set, the i-th first resource set, and the ... first resource set have the same QCL parameter, or the j-th first resource set, the j-th first resource set, and the ... first resource set correspond to different time resources, where j = 1, 2…K; and / or, the (p-1)K+1-th first resource set to the p×K-th first resource set correspond to the same time resource, or all resources within the same first resource set from the (p-1)K+1-th first resource set to the p×K-th first resource set have the same QCL parameter, and the QCL parameters of resources in different first resource sets are different, where p = 1, 2…N; and / or, The q-th first resource set, the (q+N)-th first resource set, ..., the (q+(K-1)N)-th first resource set correspond to the same time resource, or all resources within the same first resource set in the q-th first resource set, the (q+N)-th first resource set, ..., the (q+(K-1)N)-th first resource set have the same QCL parameter. The QCL parameters of resources in different first resource sets are different, where q = 1, 2, ..., N.

3. The measurement reporting method as described in request item 1, wherein, In the multiple first resource sets: all resources within the same first resource set have the same QCL parameter, while resources in different first resource sets have different QCL parameters; or, some resources within each first resource set have different QCL parameters; or, the same first resource set is associated with the same index value, while different first resource sets are associated with different index values; or, the same first resource set corresponds to the same resource subgroup, or the same resource subgroup corresponds to the same time resource.

4. The measurement reporting method as described in request item 1, wherein, The measurement of resources in the multiple first resource sets to obtain measurement quantities includes: measuring resources in the multiple first resource sets that have the same QCL parameter, are associated with the same index value, correspond to the same resource subgroup, or correspond to different time resources to obtain measurement quantities; and / or measuring resources in the multiple first resource sets that are associated with the same index value, correspond to the same resource subgroup, or correspond to different time resources to obtain measurement quantities; and / or measuring resources in the multiple first resource sets that have different QCL parameters, are associated with different index values, correspond to different resource subgroups, or correspond to the same time resources to obtain measurement quantities; and / or measuring resources in the multiple first resource sets that are associated with different index values, correspond to different resource subgroups, or correspond to the same time resources to obtain measurement quantities.

5. The measurement reporting method as described in request item 4, wherein, The method involves measuring resources from multiple first resource sets that have the same QCL parameter, are associated with the same index value, correspond to the same resource subgroup, or correspond to different time resources, to obtain a measurement quantity. This includes: selecting one or more resources from the multiple first resource sets that have the same QCL parameter, are associated with the same index value, correspond to the same resource subgroup, or correspond to different time resources as reference resources; and measuring the reference resource and other resources from the multiple first resource sets that have the same QCL parameter, are associated with the same index value, correspond to the same resource subgroup, or correspond to different time resources, excluding the reference resource, to obtain a measurement quantity.

6. The measurement reporting method as described in request item 1 or 4, wherein, The measurement reporting method further includes: determining the quantization range of the measurement; quantifying the measurement within the quantization range to obtain the quantized measurement; and reporting the measurement to the network-side device, including: reporting the quantized measurement to the network-side device.

7. The measurement reporting method as described in request item 6, wherein, The measurement includes a frequency difference; determining the quantization range of the measurement includes at least one of the following: determining the quantization range of the frequency difference based on the subcarrier spacing; determining the quantization range of the frequency difference based on the center frequency, which is the current center frequency, the center frequency configured on the network side, or a predefined center frequency; or determining the quantization range of the frequency difference based on higher-layer parameters configured on the network side.

8. The measurement reporting method as described in request item 6, wherein, The measurement includes a time delay difference; determining the quantization range of the measurement includes at least one of the following: determining the quantization range of the time delay difference based on the subcarrier spacing; determining the quantization range of the time delay difference based on the reporting detail of the time delay difference.

9. The measurement reporting method as described in request item 1, wherein, The measurement reporting method further includes: when the first resource set is one, determining each group of resources in the first resource set based on first information; wherein the first information includes one or more of the following: time-domain related parameters; resource identifier; measurement configuration order; and grouping information configured by network-side devices.

10. The measurement reporting method as described in claim 1 or 9, wherein, The time interval between the first resource in two consecutive resource groups is greater than or equal to the first preset time slot value.

11. The measurement reporting method as described in request item 10, wherein, The first resource is one or more of the following: the resource with the smallest identifier value in each resource group; the resource with the largest identifier value in each resource group; the first resource configured in each resource group; the resource with the smallest slot offset value in each resource group; the resource with the largest slot offset value in each resource group.

12. A measurement reporting method, applied to network-side equipment, comprising: Sending one or more first resource sets for measurement to the terminal, wherein the first resource set is a Tracking Reference Signal (TRS) resource set or a Channel Status Information (CSI) resource set; wherein, when multiple first resource sets are sent to the terminal, some resources in the multiple first resource sets have the same QCL parameters, the same associated index values, the same corresponding resource subgroups, or different corresponding time resources; and some resources have different QCL parameters, different associated index values, different corresponding resource subgroups, or the same corresponding time resources; or, when only one first resource set is sent to the terminal, at least one group of resources in the first resource set is used for measurement; receiving measurement quantities reported by the terminal; wherein the measurement quantities include at least one of the following: frequency difference, delay difference, phase difference, TDCP amplitude, and precoding matrix indicator (PMI).

13. The measurement reporting method as described in request item 12, wherein, The measurement reporting method also includes: configuring K×N first resource sets for the terminal, where K and N are both positive integers greater than 1; or, configuring K first resource sets for the terminal.

14. The measurement reporting method as described in request item 13, wherein, The terminal is configured with K×N first resource sets, including at least one of the following: configuring all resources in the i-th to i-th first resource sets to have the same QCL parameter, or configuring the i-th to i-th first resource sets to correspond to different time resources, where i = 1, 2…K, and N and K are positive integers greater than or equal to 1; and / or configuring all resources in the j-th, i-th, ..., i-th first resource sets to have the same QCL parameter, or configuring the j-th, i-th, ..., i-th first resource sets to correspond to different time resources, where j = 1, 2…K; and / or configuring the (p-1)K+1-th to p×K-th first resource sets to correspond to the same time resource, or configuring all resources within the same first resource set from the (p-1)K+1-th to p×K-th first resource sets to have the same QCL parameter, with different QCL parameters between different first resource sets, where p = 1, 2…N; and / or… Configure the q-th first resource set, the (q+N)-th first resource set, ..., the (q+(K-1)N)-th first resource set to correspond to the same time resource, or configure all resources within the same first resource set in the q-th first resource set, the (q+N)-th first resource set, ..., the (q+(K-1)N)-th first resource set to have the same QCL parameter. Different first resource sets and resources have different QCL parameters, where q = 1, 2, ..., N.

15. The measurement reporting method as described in request item 13, wherein, When configuring K first resource sets for the terminal, all resources within the same first resource set have the same QCL parameter, while resources in different first resource sets have different QCL parameters; or, some resources within each first resource set have different QCL parameters; or, the same first resource set is associated with the same index value, while different first resource sets are associated with different index values; or, the same first resource set corresponds to the same resource subgroup, or the same resource subgroup corresponds to the same time resource.

16. The measurement reporting method as described in claim 12, wherein, The measurement reporting method further includes: when the first resource set is one, configuring each group of resources in the first resource set according to first information; wherein the first information includes one or more of the following: time-domain related parameters; resource identifier; measurement configuration order; explicitly configured grouping information.

17. A terminal, comprising: Memory, transceiver, processor: This memory is used to store program instructions; The transceiver is used to send and receive data under the control of the processor, which executes the measurement reporting method as described in any one of claims 1 to 11.

18. A network-side device, comprising: Memory, transceiver, processor: This memory is used to store program instructions; The transceiver is used to send and receive data under the control of the processor, which performs the measurement reporting method as described in any one of claims 12 to 16.

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