CN115379489A

CN115379489A - Doppler frequency offset reporting method and device, terminal and network side equipment

Info

Publication number: CN115379489A
Application number: CN202110542423.6A
Authority: CN
Inventors: 郑凯立; 孙鹏; 塔玛拉卡·拉盖施
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2022-11-22
Also published as: WO2022242676A1

Abstract

The application discloses a Doppler frequency offset reporting method, a device, a terminal and network side equipment, which belong to the technical field of communication, and the Doppler frequency offset reporting method of the embodiment of the application comprises the following steps: the terminal carries out Doppler frequency offset measurement corresponding to at least one sending receiving point TRP; the terminal sends Doppler frequency offset reporting information to network side equipment according to the measurement result; the Doppler frequency offset reporting information is used for indicating Doppler frequency offset information corresponding to at least one TRP obtained by the terminal through measurement.

Description

Doppler frequency offset reporting method, device, terminal and network side equipment

Technical Field

This application is in in the field of communications, there is a need for, in particular to a method, a device, a terminal and a network side device for reporting Doppler frequency offset.

Background

In a scenario of multiple Transmission Receive Points (TRPs), especially in a Single Frequency Network (SFN) transmission scenario, there are multiple TRPs in the Network to Transmit data to a User Equipment (UE), but due to different distances between the UE and the multiple TRPs, the delay, phase and doppler Frequency offset of a transmission signal from each TRP to the UE are different. Especially, the doppler frequency offset difference corresponding to each TRP is large, which may seriously affect the reception performance of the UE.

Disclosure of Invention

The embodiment of the application provides a method, a device, a terminal and a network side device for reporting Doppler frequency offset, which can solve the problem that due to different distances between UE and TRP, the receiving performance of the UE is affected because the time delay, the phase and the Doppler frequency offset of transmission signals from each TRP reaching the UE are different.

In a first aspect, a method for reporting doppler frequency offset is provided, including:

the terminal measures the Doppler frequency offset corresponding to at least one sending receiving point TRP;

the terminal sends Doppler frequency offset reporting information to network side equipment according to the measurement result;

the Doppler frequency offset reporting information is used for indicating Doppler frequency offset information corresponding to at least one TRP obtained by the terminal through measurement.

In a second aspect, a method for reporting doppler frequency offset is provided, including:

the method comprises the steps that network side equipment receives Doppler frequency offset reporting information sent by a terminal;

In a third aspect, an apparatus for reporting doppler frequency offset is provided, including:

the measurement module is used for measuring the Doppler frequency offset corresponding to at least one sending and receiving point TRP;

the first reporting module is used for sending Doppler frequency offset reporting information to the network side equipment according to the measurement result;

the Doppler frequency shift reported information is used for indicating Doppler frequency shift information corresponding to at least one TRP obtained by the terminal through measurement.

In a fourth aspect, a terminal is provided comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the method according to the first aspect.

In a fifth aspect, a terminal is provided, which includes a processor and a communication interface, where the processor is configured to perform doppler frequency offset measurement corresponding to at least one transmission receiving point TRP;

sending Doppler frequency offset reporting information to network side equipment according to the measurement result;

In a sixth aspect, a network device is provided, which includes:

the second receiving module is used for receiving Doppler frequency offset reporting information sent by the terminal;

In a seventh aspect, a network-side device is provided, which includes a processor, a memory, and a program or an instruction stored on the memory and executable on the processor, and when executed by the processor, the program or the instruction implements the steps of the method according to the second aspect.

In an eighth aspect, a network side device is provided, which includes a processor and a communication interface, where the communication interface is configured to receive doppler frequency offset report information sent by a terminal;

In a ninth aspect, there is provided a readable storage medium on which is stored a program or instructions which, when executed by a processor, carries out the steps of the method of the first aspect or the steps of the method of the second aspect.

In a tenth aspect, a chip is provided, the chip comprising a processor and a communication interface, the communication interface being coupled to the processor, the processor being configured to execute a program or instructions to implement the steps of the method according to the first or second aspect.

In an eleventh aspect, there is provided a computer program/program product stored on a non-volatile storage medium, the program/program product being executable by at least one processor to implement the steps of the method according to the first or second aspect.

In the embodiment of the application, by performing doppler frequency offset measurement corresponding to at least one TRP and sending doppler frequency offset reporting information indicating doppler frequency offset information corresponding to at least one TRP measured by a terminal to a network side device, the network side device can perform preprocessing of a transmission signal frequency according to the doppler frequency offset reporting information reported by the terminal, thereby improving the receiving performance of the terminal.

Drawings

Fig. 1 is a block diagram of a wireless communication system to which embodiments of the present application are applicable;

fig. 2 is a flowchart illustrating a doppler frequency offset reporting method according to an embodiment of the present application;

fig. 3 is a schematic block diagram of a doppler frequency offset reporting apparatus according to an embodiment of the present application;

fig. 4 is a block diagram of a terminal according to an embodiment of the present application;

fig. 5 is a second flowchart illustrating a doppler frequency offset reporting method according to an embodiment of the present application;

fig. 6 is a second block diagram of a doppler frequency offset reporting apparatus according to an embodiment of the present invention;

FIG. 7 is a drawing of the present application examples of the invention a structural block diagram of a network side device;

FIG. 8 is a drawing of the present application examples of the invention block diagram of a communication device.

Detailed Description

The technical solutions in the embodiments of the present application will be described below clearly with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived from the embodiments given herein by a person of ordinary skill in the art are intended to be within the scope of the present disclosure.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in other sequences than those illustrated or otherwise described herein, and that the terms "first" and "second" used herein generally refer to a class and do not limit the number of objects, for example, a first object can be one or more. In addition, "and/or" in the specification and the claims means at least one of connected objects, and a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

It is noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, but may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), time Division Multiple Access (TDMA), frequency Division Multiple Access (FDMA), orthogonal Frequency Division Multiple Access (OFDMA), single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described techniques can be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for purposes of example, and NR terminology is used in much of the description below, but the techniques may also be applied to applications other than NR system applications, such as 6th generation,6g communication systems.

Fig. 1 is a block diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network-side device 12. Wherein, the terminal 11 may also be called as a terminal Device or a User Equipment (UE), the terminal 11 may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer) or a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, a super-Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), a Wearable Device (Wearable Device) or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and other terminal side devices, the Wearable Device includes: smart watches, bracelets, earphones, glasses, and the like. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network-side device 12 may be a Base Station or a core network, where the Base Station may be referred to as a node B, an enodeb, an access Point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a home node B, a home enodeb, a WLAN access Point, a WiFi node, a Transmit Receive Point (TRP), or some other suitable term in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, and it should be noted that, in the embodiment of the present application, only the Base Station in the NR system is taken as an example, but the specific type of the Base Station is not limited.

The method, the apparatus, the terminal and the network side device for reporting doppler frequency offset provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings and application scenarios thereof.

As shown in fig. 2 as shown in the drawings, the above-described, the embodiment of the application provides a method for reporting Doppler frequency offset, which comprises the following steps:

step 201, a terminal measures Doppler frequency offset corresponding to at least one sending receiving point TRP;

step 202, the terminal sends Doppler frequency offset reporting information to the network side equipment according to the measurement result;

it should be noted that the doppler frequency offset reporting information is used to indicate the doppler frequency offset information corresponding to at least one TRP measured by the terminal.

Optionally, the doppler frequency offset information may be a doppler frequency offset value, may be a difference value of the doppler frequency offset values, and may also be an absolute value of the difference value of the doppler frequency offset values.

It should be noted that the reported information of the doppler frequency offset is used to assist the network side device to perform preprocessing of the frequency of the transmitted signal; after receiving the reported information of the doppler frequency offset, the network side device may perform preprocessing of the frequency of the transmitted signal according to the reported information of the doppler frequency offset, so as to improve the receiving performance of the terminal.

Optionally, an optional implementation manner of step 201 of the present application is:

step 2011, the terminal receives first configuration information sent by the network side device;

the first configuration information is used for indicating a target measurement resource associated with doppler frequency offset reporting, where the target measurement resource is used for doppler frequency offset measurement, and the target measurement resource includes at least one target resource set.

Step 2012, performing doppler frequency offset measurement corresponding to at least one TRP according to the first configuration information;

that is to say, in this case, the terminal performs doppler frequency offset measurement according to the target measurement resource associated with the doppler frequency offset report configured by the network side device, and after performing doppler frequency offset measurement, the terminal can obtain a doppler frequency offset value corresponding to each TRP.

Optionally, the target resource set includes at least one of:

a11, tracking Reference Signal (TRS) resource set;

a12, synchronization Signal and physical broadcast channel Block (SSB) Burst (Burst) set.

Optionally, the first configuration information includes at least one of:

b11, a target measurement resource in Channel State Information (CSI) resource configuration;

that is, in this case, the target measurement resource is a measurement resource configured in a CSI resource configuration (CSI resource setting), for example, the target measurement resource is at least one TRS resource set in the CSI resource configuration.

B12, a first parameter, wherein the first parameter is used for indicating a binding relationship between a first measurement resource set and a target measurement resource in CSI resource configuration;

it should be noted that the first measurement resource set can be divided into a plurality of measurement resource subsets, and each resource in each measurement resource subset is associated with a target resource set.

It should be noted here that the first parameter is used to display a binding relationship indicating a first measurement resource set in the CSI resource configuration and a target measurement resource, for example, the first parameter is used to display a binding relationship indicating a first measurement resource set in the CSI resource configuration and a TRS resource set.

Reporting the associated TRS resource set by using the application condition I and the explicit configuration Doppler frequency offset information:

assume that a Non-Zero Power Channel State Information Reference Signal (NZP-CSI-RS) resource set is configured in a CSI resource configuration, and the CSI resource configuration is associated with a CSI reporting configuration (CSI report setting). The NZP-CSI-RS resources in the NZP-CSI-RS resource set are divided into two subsets, and the NZP-CSI-RS resources contained in the subset 1 are assumed to be NZP-CSI-RS1 and NZP-CSI-RS2; the NZP-CSI-RS resources contained in the subset 2 are NZP-CSI-RS3 and NZP-CSI-RS4. The network side equipment indicates TRS resource sets related to the NZP-CSI-RS1, the NZP-CSI-RS2, the NZP-CSI-RS3 and the NZP-CSI-RS4 to be TRS1, TRS2, TRS3 and TRS4 respectively through an explicit RRC parameter so as to be used for measuring and reporting the Doppler frequency offset information. In this case, the TRS resource is not directly configured as a measurement resource in the CSI resource configuration, but indirectly configured through an association relationship with an NZP-CSI-RS resource set configured in the CSI resource configuration, so as to achieve the effect of measuring and reporting the doppler frequency offset information.

After the terminal receives configuration information of network side equipment, the NZP-CSI-RS resource in the subset 1 is transmitted through the TRP1, the terminal measures CSI information related to the TRP1 based on the NZP-CSI-RS resource in the subset 1, the CSI information comprises information such as Precoding Matrix Indicator (PMI)/Rank Indicator (RI)/Channel Quality Indicator (CQI), the TRS1 and the TRS2 bound with the CSI information are also transmitted through the TRP1, and the terminal measures information such as Doppler frequency offset value of the TRP1 based on the TRS1 and the TRS 2; the NZP-CSI-RS resource in the subset 2 is transmitted through the TRP2, the terminal measures the CSI information related to the TRP2 based on the NZP-CSI-RS resource in the subset 2, the CSI information comprises PMI/RI/CQI and other information, the TRS3 and the TRS4 bound with the CSI information are also transmitted through the TRP2, and the terminal measures the information such as the Doppler frequency offset value of the TRP2 based on the TRS3 and the TRS4.

B13, a Quasi Co-location (QCL) reference source corresponding to a second measurement resource set in the CSI resource configuration;

it should be noted that the second measurement resource set can be divided into a plurality of measurement resource subsets, and each resource in each measurement resource subset is associated with a target resource set as a QCL reference source.

And in the second application situation, implicitly configuring Doppler frequency offset information to report the associated TRS resource set:

assume that an NZP-CSI-RS resource set is configured in one CSI resource configuration and associated with one CSI reporting configuration. The NZP-CSI-RS resources in the NZP-CSI-RS resource set are divided into two subsets; the NZP-CSI-RS resources contained in the subset 1 are assumed to be NZP-CSI-RS1 and NZP-CSI-RS2; the NZP-CSI-RS resources contained in the subset 2 are NZP-CSI-RS3 and NZP-CSI-RS4. And the QCL reference sources of the NZP-CSI-RS1, the NZP-CSI-RS2, the NZP-CSI-RS3 and the NZP-CSI-RS4 configured at the network side are TRS resource sets TRS1, TRS2, TRS3 and TRS4. Under the condition, the terminal carries out measurement and report of Doppler frequency offset based on the TRS resource set of the NZP-CSI-RS resource QCL reference source. In this case, the TRS resource is not directly configured as a measurement resource in the CSI resource configuration, but indirectly configured through a QCL reference relationship with an NZP-CSI-RS resource set configured in the CSI resource configuration, so as to achieve the effect of measuring and reporting the doppler frequency offset information.

After the terminal receives the configuration information of the network side equipment, the NZP-CSI-RS resource in the subset 1 is transmitted through the TRP1, the terminal measures the CSI information related to the TRP1 based on the NZP-CSI-RS resource in the subset 1, the CSI information comprises PMI/RI/CQI and the like, the TRS1 and the TRS2 bound with the CSI information are also transmitted through the TRP1, and the terminal measures the information such as the Doppler frequency offset value of the TRP1 based on the TRS1 and the TRS 2; the NZP-CSI-RS resource in the subset 2 is transmitted through the TRP2, the terminal measures the CSI information related to the TRP2 based on the NZP-CSI-RS resource in the subset 2, the CSI information comprises PMI/RI/CQI and the like, the TRS3 and the TRS4 bound with the CSI information are also transmitted through the TRP2, and the terminal measures the information such as the Doppler frequency offset value of the TRP2 based on the TRS3 and the TRS4.

Optionally, one implementation manner that may be adopted in step 202 of the embodiment of the present application is:

step 2021, the terminal receives the second configuration information sent by the network side device;

step 2022, sending the doppler frequency offset reporting information to the network side device according to the second configuration information.

Optionally, the second configuration information is used to indicate at least one of:

c11, reporting the report quantity configuration of the associated CSI report by the Pulley frequency offset information;

it should be noted that the reporting amount configuration of the CSI report associated with the doppler frequency offset information report is used to indicate that at least one of the following items is included:

c111, the terminal reports the independent Doppler frequency offset information;

c112, the terminal reports Doppler frequency offset information and first CSI reporting information;

it should be noted that the first CSI information includes at least one of the following: CSI-RS Resource Indicator (CRI), precoding Matrix Indicator (PMI), rank Indicator (RI), channel Quality Indicator (CQI), layer Indicator (LI), reference Signal measured Power (RSRP), and Signal-to-Noise and Interference Ratio (SINR).

Optionally, in case of C112, before step 202, the method further comprises:

receiving a first reporting period of Doppler frequency offset reporting information sent by network side equipment;

wherein the first reporting period includes at least one of:

d11, period value taking;

that is, the first reporting period includes specific period values.

And D12, a multiple relation between the reporting period of the Doppler frequency offset reporting information and the reporting period of the first CSI reporting information.

It should be noted that the reporting period of the doppler frequency offset information may be the same as or different from the reporting period of the first CSI reporting information. It should be further noted that, when the terminal does not receive the first reporting period sent by the network side device, the reporting period of the doppler frequency offset reporting information is the same as the reporting period of the first CSI reporting information.

And in the third application condition, the periods of CSI reporting and Doppler frequency offset information reporting are different

Suppose that the period of CSI reporting configured by the network side device in the CSI reporting configuration is a.

1) If the first reporting period is not configured additionally, the reporting period of the doppler frequency offset information measured by the default TRS resource set is also a. At this time, the doppler frequency offset reporting information and other CSI reporting information configured in the CSI reporting configuration may be multiplexed and reported in the same PUCCH or PUSCH resource, or may be independently reported in different reporting resources, respectively.

2) If the first reporting period is additionally configured, the reporting period of the doppler frequency offset information measured by the TRS resource set is the reporting period B corresponding to the first reporting period. At this time, when the reporting time of the doppler frequency offset information coincides with the reporting time of other CSI reporting information configured in the CSI reporting configuration, the two can be multiplexed and reported in the same PUCCH or PUSCH resource, or independently reported in different reporting resources, respectively; and when the reporting time of other CSI reporting information configured in the CSI reporting configuration comes but the reporting time of the Doppler frequency offset information does not come, the terminal only reports the other CSI reporting information and does not report the Doppler frequency offset information.

It is further noted that the above-mentioned doppler frequency offset information includes at least one of the following forms:

c21, doppler frequency offset value;

it should be noted that, when the terminal measures several TRPs, in this case, the doppler frequency offset information includes several doppler frequency offset values, that is, the TRPs and the doppler frequency offset values are in one-to-one correspondence, that is, the doppler frequency offset information includes at least one doppler frequency offset value, it can be understood that the doppler frequency offset value mentioned here and in the following refers to at least one doppler frequency offset value.

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

c211, reporting a differential quantization result of the Doppler frequency offset value;

in this case, it is understood that one of the at least one doppler bias values (which may be the largest one, the smallest one, or any one) is selected or quantized using a certain value of the at least one doppler bias value as a reference, and the other doppler bias values are quantized using a difference value from the reference.

And in the third application condition, when the terminal reports a plurality of Doppler frequency offset values, differential quantization is carried out

Assuming that the TRS resource sets for doppler frequency offset information measurement and reporting are TRS1 and TRS2, respectively, and are transmitted through TRP1 and TRP2, respectively, the terminal measures the doppler frequency offset of the signal from TRP1 based on TRS1, and measures the doppler frequency offset of the signal from TRP2 based on TRS2. And the terminal measures the Doppler frequency offsets corresponding to the two TRPs to respectively obtain a Doppler frequency offset value 1 and a Doppler frequency offset value 2, and reports the Doppler frequency offset values. In order to save the bit overhead of reporting, the doppler bias value 1 and the doppler bias value 2 to be reported are differentially quantized. The quantization method comprises at least one of the following:

1) And taking the maximum absolute value of the Doppler frequency offset value 1 and the Doppler frequency offset value 2 as a quantization reference, and quantizing the maximum absolute value by adopting M bits. The smaller absolute value only reports the absolute value difference value between the smaller absolute value and the largest absolute value, and N bits are adopted to quantize the smaller absolute value, wherein N is less than M;

2) And taking the maximum Doppler frequency offset value 1 and the maximum Doppler frequency offset value 2 as a quantization reference, quantizing the maximum Doppler frequency offset value by adopting M bits, reporting the difference value between the maximum Doppler frequency offset value and the minimum Doppler frequency offset value only when the minimum Doppler frequency offset value is smaller, and quantizing the maximum Doppler frequency offset value by adopting L bits.

C212, reporting the positive and negative of the Doppler frequency offset value and the quantification result of the absolute value of the Doppler frequency offset value;

it should be noted that, in this case, the negativity of each doppler bias value is reported, the negativity is usually indicated by 1 bit, then the absolute value of each doppler bias value is quantized, and the quantization mode may be differential quantization, uniform quantization, non-uniform quantization, and the like, so that each doppler bias value includes two bits, i.e., a positive and negative indication bit portion and a quantization bit portion, and the two portions are combined into a bit sequence and then reported.

And fourthly, reporting the positive and negative properties of the Doppler frequency offset value when the terminal reports the Doppler frequency offset value

Assuming that the TRS resource sets for doppler frequency offset information measurement and reporting are TRS1 and TRS2, respectively, and are transmitted through TRP1 and TRP2, respectively, the terminal measures the doppler frequency offset of the signal from TRP1 based on TRS1, and measures the doppler frequency offset of the signal from TRP2 based on TRS2.

The terminal measures the Doppler frequency offsets corresponding to the two TRPs as a Doppler frequency offset value 1 and a Doppler frequency offset value 2 respectively. Wherein, the Doppler frequency offset value 1 is a positive value, and the Doppler frequency offset value 2 is a negative value. The positive sign is indicated by the bit '0' and the negative sign by the bit '1', wherein the meanings of the bits '0' and '1' are interchangeable. And quantizing the absolute values of the Doppler frequency offset value 1 and the Doppler frequency offset value 2 by adopting additional X bits, wherein the quantization methods of the absolute values comprise differential quantization, uniform quantization and non-uniform quantization. And after quantization, the 1-bit sign indication of the Doppler frequency offset value 1 and the Doppler frequency offset value 2 reported by the terminal and the quantization bit of the absolute value of the X-bit Doppler frequency offset value.

And C213, reporting the positive and negative of a first target Doppler frequency offset value in the Doppler frequency offset values and a differential quantization result of the Doppler frequency offset value, wherein the first target Doppler frequency offset value is a differential calculation reference of the differential quantization.

The difference calculation reference comprises one of:

c31, the maximum absolute value of the Doppler frequency offset values;

c32, the minimum absolute value of the Doppler frequency offset values;

c33, average value of the Doppler frequency offset value.

C22, at least one difference value of the Doppler frequency offset value and the reference value;

the reference value is one of doppler frequency offset values, and when determining the difference value, a reference value is determined first, and the reference value is used as a decremented number or a decrementing number; that is, if there are X Doppler frequency offset values, it is finally determined that X-1 difference values are obtained.

And in the fifth application condition, when the terminal reports a difference value of the Doppler frequency offset information:

assuming that the TRS resource sets for doppler frequency offset information measurement and reporting are TRS1 and TRS2, respectively, and are transmitted through TRP1 and TRP2, respectively, the terminal measures the doppler frequency offset of the signal from TRP1 based on TRS1, and measures the doppler frequency offset of the signal from TRP2 based on TRS2. And the terminal measures the Doppler frequency offsets corresponding to the two TRPs to respectively obtain a Doppler frequency offset value 1 and a Doppler frequency offset value 2.

The network side device indicates the QCL of the Downlink Modulation Reference Signal (trls) of the Physical Downlink Shared Channel (PDSCH) or the Physical Downlink Control Channel (PDCCH) to the terminal as TRS1 and TRS2 through two Transmission Configuration Index (TCI) states in the Downlink Control Information (DCI)/Medium Access Control (MAC) Control Element (CE). Assume that TRS1 provides a frequency offset reference for DMRS of PDSCH or PDCCH. In this case, the difference calculation of the doppler frequency offsets of the network side device and the terminal side device takes the doppler frequency offset value 1 corresponding to the measurement result of the TRS1 as a calculation reference, i.e., the difference = doppler frequency offset value 1-doppler frequency offset value 2, or the difference = doppler frequency offset value 2-doppler frequency offset value 1.

C23, an absolute value of at least one difference value of the Doppler frequency offset value and the reference value;

optionally, in this case, the terminal further needs to report the negativity of the difference between the doppler bias value and the reference value.

The reference value is one of doppler frequency offset values, and when determining the difference value, a reference value is determined first, and the reference value is used as a decremented number or a decrementing number; that is, if there are X doppler bias values, it is finally determined that the absolute values of X-1 difference values are obtained, X ≧ 2, and since the magnitudes of the two doppler bias values are unknown through the absolute values, in this case, the terminal needs to report the positivity or negativity of the difference value between at least one doppler bias value and the reference value, that is, for each difference value, the terminal includes two parts of bits, that is, a positivity indication bit and an absolute value indication bit.

And in the sixth application condition, when the terminal reports an absolute value of a Doppler frequency offset difference value:

The terminal calculates the absolute value of the difference between the doppler frequency offset value 1 and the doppler frequency offset value 1, that is, the absolute value of the difference = | doppler frequency offset value 1-doppler frequency offset value 2|. If the absolute value of the difference is a positive value, the absolute value is represented by a bit '0'; if the absolute value of the difference is a negative value, the absolute value is represented by a bit '1'. Wherein the meaning of bits '0' and '1' may be interchanged. In addition, the absolute value of the difference is quantized with an additional Y bits, and specifically, the quantization may be differential quantization, uniform quantization, non-uniform quantization, or the like.

It should be noted that the reference values in C22 and C23 are doppler frequency offset values measured by the target resource set providing the frequency offset QCL reference in the Transmission Configuration Indication (TCI) state indicated by the network side device.

Alternatively, the first reference information corresponding to the reference value is configured to the terminal by the network side device through RRC signaling, and the first reference information is used to determine the reference value, for example, the first reference information is information such as a measurement signal/configuration, and the information such as the measurement signal/configuration corresponds to a specific reference value, so that the reference value can be determined through the first reference information.

Or the reported doppler frequency offset information includes first identification information, where the first identification information is used to indicate second reference information corresponding to a reference value for obtaining a doppler frequency offset difference, the second reference information is used to determine the reference value, the second reference information is information such as a measurement signal/configuration, and the measurement signal/configuration corresponds to a specific reference value, and then the reference value can be determined through the second reference information.

It should be noted that, when a protocol agreement or a high-level configuration terminal may use at least two manners of C21-C23 to report doppler frequency offset information, when performing specific reporting, a network side device may flexibly configure which manner the terminal uses at different times to report, and optionally, the method further includes:

and the terminal receives first reporting indication information sent by the network side equipment, wherein the first reporting indication information is used for indicating the switching of the Doppler frequency offset information reporting.

For example, if the terminal is agreed by a protocol or configured by a high layer and can adopt two modes to report doppler frequency offset information, the terminal changes a reporting mode every time it receives the first reporting indication information; if the protocol convention or the higher layer configuration terminal can adopt three modes to report the doppler frequency offset information, the first report information usually needs to include the report mode after the terminal is switched, and after receiving the first reporting indication information, the terminal switches the reporting mode to the reporting mode indicated in the first reporting indication information.

For example, the protocol agreement terminal may report doppler frequency offset information in a C21 and C22 manner, when the network side device configures the terminal to use the reporting manner of C21 at time 1, and the network side device wants to change the reporting manner of the terminal at time 2, the network side device needs to send first reporting indication information to the terminal, and after receiving the first reporting indication information, the terminal knows that the network side device performs switching of the reporting manner, and then reports doppler frequency offset information in a next reporting manner using the reporting manner of C22.

C12, reporting the reporting opportunity configuration of the associated CSI report by the Doppler frequency offset information;

optionally, the reporting opportunity configuration includes at least one of:

reporting periodically;

semi-continuous reporting;

and (5) reporting in an aperiodic way.

That is to say, under such a condition, the terminal sends the doppler frequency offset reporting information to the network side device at the reporting time corresponding to the doppler frequency offset information reporting.

Optionally, it should be noted that the terminal may further determine whether the doppler frequency offset reporting information needs to be sent according to indication information sent by the network side device, and optionally, the method in this embodiment of the present application further includes:

receiving first indication information sent by a network side device through Radio Resource Control (RRC) signaling, wherein the first indication information is used for indicating whether Doppler frequency offset information is reported or not.

Further, after the terminal receives the first indication information, if the first indication information indicates that the doppler frequency offset information needs to be reported, the terminal sends doppler frequency offset reporting information to the network side device at a reporting time corresponding to the doppler frequency offset information reporting.

That is to say, in this case, the terminal does not actively report the doppler frequency offset report information, and only when the network side device indicates that the doppler frequency offset report information needs to be obtained, the terminal sends the doppler frequency offset report information to the network side device, so that the sending frequency of the doppler frequency offset report information can be reduced, and the signaling overhead can be reduced. And when the network side equipment does not support the receiving terminal to report the Doppler frequency offset information, the network side equipment can also indicate the first indication information to the terminal.

Optionally, it should be further noted that the network side device may determine whether doppler frequency offset information reporting is needed according to the capability of the terminal, and the method in this embodiment of the present application further includes:

and sending terminal capability information to the network side equipment, wherein the terminal capability information is used for indicating whether the terminal supports the reporting of the Doppler frequency offset information.

After the network side equipment receives the terminal capability information, when the terminal capability information indicates that the terminal supports the reporting of the Doppler frequency offset information, the network side equipment can send first indication information to the terminal, so that the terminal reports the Doppler frequency offset information after the Doppler frequency offset is measured; or after the network side equipment receives the terminal capability information, when the terminal capability information indicates that the terminal supports the reporting of the Doppler frequency offset information, sending first configuration information for indicating the terminal to carry out Doppler frequency offset measurement, and after the terminal carries out the Doppler frequency offset measurement, sending Doppler frequency offset reporting information to the network side equipment at a reporting time corresponding to the Doppler frequency offset information reporting; the method can avoid the condition that the network side equipment sends invalid configuration information, thereby ensuring the effectiveness of communication.

Application case eight, when the terminal receives PDSCH data:

1) The method comprises the steps of taking a first TCI state in a TCI code point (codepoint) in an MAC CE as a reference for adjusting downlink carrier frequency, wherein the MAC CE is used for activating a TCI state associated with a PDSCH, and the TCI state provides a QCL reference including frequency offset for a DMRS of the PDSCH.

2) The TCI state associated with PDCCH DMRS is used as a reference for adjusting the downlink carrier frequency.

It should be noted that the MTRP doppler frequency offset reporting method provided in the embodiment of the present application mainly solves the problem of time domain channel deep fading in an MTRP scenario, especially in an SFN transmission scenario; after the network side acquires the Doppler frequency offset information reported by the terminal, the network side can carry out preprocessing on the frequency of the transmitted signal based on the information, so that the receiving performance of the terminal is effectively improved.

It should be noted that, in the doppler frequency offset reporting method provided in the embodiment of the present application, the execution main body may be a doppler frequency offset reporting device, or a control module in the doppler frequency offset reporting device, configured to execute the doppler frequency offset reporting method. The doppler frequency offset reporting device provided in the embodiment of the present application is described by taking an example in which the doppler frequency offset reporting device executes a doppler frequency offset reporting method.

As shown in fig. 3, an embodiment of the present application provides a doppler frequency offset reporting apparatus 300, including:

a measurement module 301, configured to perform doppler frequency offset measurement corresponding to at least one sending and receiving point TRP;

a first reporting module 302, configured to send doppler frequency offset reporting information to a network side device according to the measurement result;

Optionally, the measurement module 301 includes:

a first receiving unit, configured to receive first configuration information sent by a network side device;

a measuring unit, configured to perform doppler frequency offset measurement corresponding to at least one TRP according to the first configuration information;

the first configuration information is used for indicating Doppler frequency offset information to report associated target measurement resources, the target measurement resources are used for Doppler frequency offset measurement, and the target measurement resources include at least one target resource set.

Optionally, the target resource set includes at least one of:

tracking a set of reference signal, TRS, resources;

synchronization signals and a set of physical broadcast channel block SSB bursts.

Optionally, the first configuration information includes at least one of:

target measurement resources in Channel State Information (CSI) resource configuration;

a first parameter indicating a binding relationship between a first measurement resource set and a target resource in a CSI resource configuration;

and a quasi co-located QCL reference source corresponding to the second measurement resource set in the CSI resource configuration.

Optionally, the first measurement resource set can be divided into a plurality of measurement resource subsets, and each resource in each measurement resource subset is associated with a target resource set.

Optionally, the second measurement resource set may be divided into a plurality of measurement resource subsets, and each resource in each measurement resource subset is associated with a target resource set as a QCL reference source.

Optionally, the first reporting module 302 includes:

a second receiving unit, configured to receive second configuration information sent by a network side device;

and the first sending unit is used for sending the Doppler frequency offset reporting information to the network side equipment according to the second configuration information.

reporting the report quantity configuration of the associated CSI report by the Doppler frequency offset information;

and reporting the reporting time configuration of the associated CSI report by the Doppler frequency offset information.

Optionally, the reporting amount of the CSI report associated with the doppler frequency offset information report is configured to indicate that at least one of the following:

the terminal reports the independent Doppler frequency offset information;

the method comprises the steps that a terminal reports Doppler frequency offset information and first CSI reporting information, wherein the first CSI information comprises at least one of the following items: CSI-RS resource indication CRI, precoding matrix indication PMI, rank indication RI, channel quality indication CQI, layer indication LI, reference signal measurement power RSRP and signal to interference plus noise ratio SINR.

Optionally, the doppler frequency offset information includes at least one of the following forms:

a Doppler frequency offset value;

at least one difference between the doppler bias value and the baseline value;

an absolute value of at least one difference between the doppler frequency offset value and the reference value;

wherein the reference value is one of the Doppler frequency offset values.

Optionally, in the case of reporting the doppler frequency offset value, the terminal reports at least one of the following:

reporting a differential quantization result of the Doppler frequency offset value;

reporting the positive and negative of the Doppler frequency offset value and the quantification result of the absolute value of the Doppler frequency offset value;

and reporting the positive and negative of a first target Doppler frequency offset value in the Doppler frequency offset values and a differential quantization result of the Doppler frequency offset values, wherein the first target Doppler frequency offset value is a differential calculation reference of the differential quantization.

Optionally, the difference calculation reference comprises one of:

the maximum absolute value of the Doppler frequency offset values;

the minimum absolute value of the Doppler frequency offset values;

an average value of the doppler frequency offset values.

Optionally, the reference value is a doppler frequency offset value measured by a target resource set providing a reference of a frequency offset QCL in a transmission configuration indication TCI state indicated by the network side device.

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

Optionally, the reported information of the doppler frequency offset includes first identification information, where the first identification information is used to indicate to obtain second reference information corresponding to a reference value of a doppler frequency offset difference, and the second reference information is used to determine the reference value.

Optionally, in a case that an absolute value of at least one difference between the doppler frequency offset value and a reference value is reported, the apparatus further includes:

and the second reporting module is used for reporting the positive and negative of the difference value of the Doppler frequency offset value and the reference value.

Optionally, the apparatus further comprises:

and a third receiving module, configured to receive first reporting indication information sent by a network side device, where the first reporting indication information is used to indicate switching of reporting the doppler frequency offset information.

Optionally, the reporting time configuration includes at least one of:

reporting periodically;

semi-continuous reporting;

and (6) reporting in an aperiodic way.

Optionally, when the reporting amount configuration that the CSI report associated with the doppler frequency offset information report indicates that the terminal reports the doppler frequency offset information and the first CSI report information, the method further includes:

the fourth receiving module is used for receiving a first reporting period of the Doppler frequency offset reporting information sent by the network side equipment;

wherein the first reporting period includes at least one of:

periodically taking values;

and the reporting period of the Doppler frequency offset reporting information is in a multiple relation with the reporting period of the first CSI reporting information.

Optionally, the apparatus further comprises:

the first sending module is used for sending the terminal capability information to the network side equipment;

the terminal capability information is used for indicating whether the terminal supports the reporting of the Doppler frequency offset information.

Optionally, the apparatus further comprises:

a fifth receiving module, configured to receive first indication information sent by a network side device through a radio resource control RRC signaling;

the first indication information is used for indicating whether to report Doppler frequency offset information.

It should be noted that, by performing doppler frequency offset measurement corresponding to at least one TRP, and sending doppler frequency offset report information indicating doppler frequency offset information corresponding to at least one TRP obtained by terminal measurement to the network side device, the network side device can perform preprocessing of the frequency of the transmitted signal according to the doppler frequency offset report information reported by the terminal, thereby improving the receiving performance of the terminal.

The doppler frequency offset reporting device in the embodiment of the present application may be a device, a device with an operating system, or an electronic device, and may also be a component, an integrated circuit, or a chip in a terminal. The device or the electronic equipment can be a mobile terminal or a non-mobile terminal. For example, the mobile terminal may include, but is not limited to, the type of the terminal 11 listed above, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a television (television), a teller machine (teller machine), a self-service machine (kiosk), or the like, and the embodiments of the present application are not limited in particular.

The doppler frequency offset reporting apparatus provided in the embodiment of the present application can implement each process implemented by the method embodiment of fig. 2, and achieve the same technical effect, and for avoiding repetition, details are not repeated here.

The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the processor is used for measuring the Doppler frequency offset corresponding to at least one sending and receiving point TRP; the communication interface is used for sending Doppler frequency offset reporting information to the network side equipment according to the measurement result;

The terminal embodiment corresponds to the terminal-side method embodiment, and all implementation processes and implementation modes of the method embodiment can be applied to the terminal embodiment and can achieve the same technical effect. Specifically, fig. 4 is a schematic diagram of a hardware structure of a terminal for implementing the embodiment of the present application.

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

Those skilled in the art will appreciate that the terminal 400 may further include a power source (e.g., a battery) for supplying power to various components, and the power source may be logically connected to the processor 410 through a power management system, so as to implement functions of managing charging, discharging, and power consumption through the power management system. The terminal structure shown in fig. 4 does not constitute a limitation of the terminal, and the terminal may include more or less components than those shown, or combine some components, or have a different arrangement of components, and will not be described again here.

It should be understood that in the embodiment of the present application, the input Unit 404 may include a Graphics Processing Unit (GPU) 4041 and a microphone 4042, and the Graphics processor 4041 processes image data of a still picture or a video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 406 may include a display panel 4061, and the display panel 4061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 407 includes a touch panel 4071 and other input devices 4072. A touch panel 4071, also referred to as a touch screen. The touch panel 4071 may include two parts, a touch detection device and a touch controller. Other input devices 4072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

In this embodiment of the application, the radio frequency unit 401 receives downlink data from a network side device and then processes the downlink data to the processor 410; in addition, the uplink data is sent to the network side equipment. Typically, radio unit 401 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 409 may be used to store software programs or instructions and various data. The memory 409 may mainly include a stored program or instruction area and a stored data area, wherein the stored program or instruction area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. In addition, the Memory 409 may include a high-speed random access Memory, and may further include a nonvolatile Memory, wherein the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

Processor 410 may include one or more processing units; alternatively, the processor 410 may integrate an application processor, which primarily handles operating system, user interface, and applications or instructions, etc., and a modem processor, which primarily handles wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 410.

Wherein the processor 410 is configured to implement:

performing Doppler frequency offset measurement corresponding to at least one sending receiving point TRP;

the radio frequency unit 401 is configured to send doppler frequency offset reporting information to a network side device according to the measurement result;

The terminal of the embodiment of the application performs Doppler frequency offset measurement corresponding to at least one TRP, and sends the Doppler frequency offset report information indicating the Doppler frequency offset information corresponding to the at least one TRP obtained by the terminal measurement to the network side equipment, so that the network side equipment can perform preprocessing of the frequency of the transmitted signal according to the Doppler frequency offset report information reported by the terminal, and further, the receiving performance of the terminal is improved.

Optionally, the radio frequency unit 401 is configured to implement:

receiving first configuration information sent by network side equipment;

the processor 410 is configured to implement: performing Doppler frequency offset measurement corresponding to at least one TRP according to the first configuration information;

Optionally, the target resource set comprises at least one of:

tracking a set of reference signal, TRS, resources;

Optionally, the radio frequency unit 401 is further configured to implement:

sending terminal capability information to network side equipment;

Optionally, the first configuration information includes at least one of:

a target measurement resource in a channel state information, CSI, resource configuration;

a first parameter indicating a binding relationship between a first measurement resource set in a CSI resource configuration and a target measurement resource;

Optionally, the radio frequency unit 401 is configured to implement:

receiving second configuration information sent by the network side equipment;

and sending Doppler frequency offset reporting information to network side equipment according to the second configuration information.

the terminal reports the independent Doppler frequency offset information;

the terminal reports Doppler frequency offset information and first CSI reporting information, wherein the first CSI reporting information comprises at least one of the following items: CSI-RS resource indication CRI, precoding matrix indication PMI, rank indication RI, channel quality indication CQI, layer indication LI, reference signal measurement power RSRP and signal to interference plus noise ratio SINR.

a Doppler frequency offset value;

at least one difference between the doppler frequency offset value and the baseline value;

wherein the reference value is one of the Doppler frequency offset values.

Optionally, the difference calculation reference comprises one of:

the maximum absolute value of the Doppler frequency offset values;

the minimum absolute value among the Doppler frequency offset values;

an average value of the doppler frequency offset values.

Optionally, in a case that an absolute value of at least one difference between the doppler frequency offset value and a reference value is reported, the radio frequency unit 401 is further configured to implement:

and reporting the positive and negative of the difference value of the Doppler frequency offset value and the reference value.

Optionally, the radio frequency unit 401 is further configured to implement:

and receiving first reporting indication information sent by a network side device, wherein the first reporting indication information is used for indicating switching of reporting of the Doppler frequency offset information.

Optionally, the reporting time configuration includes at least one of:

reporting periodically;

semi-continuous reporting;

and (6) reporting in an aperiodic way.

Optionally, under the condition that the reporting amount configuration indicating terminal reports the doppler frequency offset information and the first CSI report information, the radio frequency unit 401 is further configured to implement:

wherein the first reporting period includes at least one of:

periodically taking values;

Optionally, the radio frequency unit 401 is configured to implement:

receiving first indication information sent by network side equipment through Radio Resource Control (RRC) signaling;

Preferably, an embodiment of the present application further provides a terminal, which includes a processor, a memory, and a program or an instruction stored in the memory and capable of running on the processor, where the program or the instruction, when executed by the processor, implements each process of the doppler frequency offset reporting method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

The embodiments of the present application further provide a readable storage medium, where a program or an instruction is stored, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the doppler frequency offset reporting method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

As shown in fig. 5, an embodiment of the present application further provides a doppler frequency offset reporting method, including:

step 501, a network side device receives Doppler frequency offset reporting information sent by a terminal;

Further, the network side device performs preprocessing of the frequency of the transmitted signal according to the reported doppler frequency offset information, so as to improve the receiving performance of the terminal.

Optionally, the method further comprises:

sending first configuration information to a terminal, where the first configuration information is used to indicate doppler frequency offset information to report associated target measurement resources, where the target measurement resources are used for doppler frequency offset measurement, and the target measurement resources include at least one target resource set.

Optionally, the set of target measurement resources comprises at least one of:

tracking a set of reference signal, TRS, resources;

synchronization signals and a set of physical broadcast channel block SSB resources.

Optionally, the first configuration information includes at least one of:

Optionally, the receiving the doppler frequency offset report information sent by the terminal includes:

sending second configuration information to the terminal;

and receiving Doppler frequency offset reporting information sent by the terminal according to the second configuration information.

the terminal reports the independent Doppler frequency offset information;

a Doppler frequency offset value;

wherein the reference value is one of the Doppler frequency offset values.

Optionally, in case of receiving a doppler bias value, the network device receives at least one of:

receiving a differential quantization result of the Doppler frequency offset value;

receiving the positive and negative of the Doppler frequency offset value and the quantification result of the absolute value of the Doppler frequency offset value;

and receiving the positive and negative of a first target Doppler frequency offset value in the Doppler frequency offset values and a differential quantization result of the Doppler frequency offset values, wherein the first target Doppler frequency offset value is a differential calculation reference of the differential quantization.

Optionally, the difference calculation reference comprises one of:

the maximum absolute value of the Doppler frequency offset values;

the minimum absolute value of the Doppler frequency offset values;

an average value of the doppler frequency offset values.

Optionally, the reference value is a doppler frequency offset value measured by a target resource set that provides a reference of a frequency offset QCL in a transmission configuration indication TCI state indicated by the network side device for the terminal.

Optionally, first reference information corresponding to the reference value is configured to the terminal through RRC signaling, and the first reference information is used to determine the reference value.

Optionally, the doppler frequency offset reporting information includes first identification information, where the first identification information is used to indicate second reference information corresponding to a reference value for obtaining a doppler frequency offset difference, and the second reference information is used to determine the reference value.

Optionally, in a case of receiving an absolute value of at least one difference between the doppler frequency offset value and a reference value, the method further includes:

and receiving the positive and negative of the difference value of the Doppler frequency offset value and the reference value.

Optionally, before the receiving terminal sends the doppler frequency offset report information, the method further includes:

and sending first reporting indication information to a terminal, wherein the first reporting indication information is used for indicating the switching of the Doppler frequency offset information reporting.

Optionally, the reporting time configuration includes at least one of:

reporting periodically;

semi-continuous reporting;

and (6) reporting in an aperiodic way.

sending a first reporting period of Doppler frequency offset reporting information to a terminal;

wherein the first reporting period includes at least one of:

periodically taking values;

Optionally, the method further comprises:

receiving terminal capability information sent by a terminal;

Optionally, the method further comprises:

sending first indication information to a terminal through Radio Resource Control (RRC) signaling;

It should be noted that all descriptions related to the network side device in the embodiments of the application are applicable to the embodiment of the doppler frequency offset reporting method, and can achieve the same technical effect, and are not described herein again.

As shown in fig. 6, an embodiment of the present application further provides a doppler frequency offset reporting apparatus 600, including:

a first receiving module 601, configured to receive doppler frequency offset reporting information sent by a terminal;

Optionally, the apparatus further comprises:

a second sending module, configured to send first configuration information to a terminal, where the first configuration information is used to indicate a target measurement resource associated with doppler frequency offset reporting, the target measurement resource is used for doppler frequency offset measurement, and the target measurement resource includes at least one target resource set.

Optionally, the target resource set comprises at least one of:

tracking a set of reference signal, TRS, resources;

Optionally, the first configuration information includes at least one of:

Optionally, the first receiving module 601 includes:

a second sending unit, configured to send second configuration information to the terminal;

and the third receiving unit is used for receiving the Doppler frequency offset reporting information sent by the terminal according to the second configuration information.

the terminal reports the independent Doppler frequency offset information;

a Doppler frequency offset value;

wherein the reference value is one of the Doppler frequency offset values.

Optionally, the difference calculation reference comprises one of:

the maximum absolute value of the Doppler frequency offset values;

the minimum absolute value of the Doppler frequency offset values;

an average value of the doppler frequency offset values.

Optionally, the first reference information corresponding to the reference value is configured to the terminal through RRC signaling, the first reference information is used to determine the reference value.

Optionally, in a case of receiving an absolute value of at least one difference between the doppler frequency offset value and a reference value, the apparatus further includes:

and the sixth receiving module is used for receiving the positive and negative of the difference value of the Doppler frequency offset value and the reference value.

Optionally, the apparatus further comprises:

and a third sending module, configured to send first reporting indication information to the terminal, where the first reporting indication information is used to indicate switching of reporting the doppler frequency offset information.

Optionally, the reporting time configuration includes at least one of:

reporting periodically;

semi-continuous reporting;

and (6) reporting in an aperiodic way.

Optionally, under the condition that the reporting amount configuration indication terminal that reports the associated CSI reports the doppler frequency offset information and the first CSI reporting information, the method further includes:

a fourth sending module, configured to send a first reporting period of the doppler frequency offset reporting information to the terminal;

wherein the first reporting period includes at least one of:

periodically taking values;

Optionally, the apparatus further comprises:

a seventh receiving module, configured to receive terminal capability information sent by the terminal;

Optionally, the apparatus further comprises:

a fifth sending module, configured to send the first indication information to the terminal through a radio resource control RRC signaling;

It should be noted that, the present embodiment is an apparatus corresponding to the above method embodiment applied to a network side device, and all implementation manners in the above method embodiment are applicable to the apparatus embodiment, and the same technical effect can be achieved.

Preferably, an embodiment of the present application further provides a network side device, which includes a processor, a memory, and a program or an instruction stored in the memory and executable on the processor, where the program or the instruction is executed by the processor to implement each process of the doppler frequency offset reporting method embodiment applied to the network side device, and can achieve the same technical effect, and in order to avoid repetition, the process is not described herein again.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored in the computer readable storage medium, and when executed by a processor, the program or the instruction implements each process of the doppler frequency offset reporting method applied to the network side device side, and can achieve the same technical effect, and in order to avoid repetition, the detailed description is omitted here.

The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

The embodiment of the application further provides a network side device, which comprises a processor and a communication interface, wherein the communication interface is used for receiving the Doppler frequency offset reporting information sent by the terminal;

The embodiment of the network side device corresponds to the embodiment of the method of the network side device, and all implementation processes and implementation manners of the embodiment of the method can be applied to the embodiment of the network side device and can achieve the same technical effect.

Specifically, the embodiment of the application further provides a network side device. As shown in fig. 7, the network-side device 700 includes: an antenna 71, a radio frequency device 72, a baseband device 73. The antenna 71 is connected to a radio frequency device 72. In the uplink direction, the rf device 72 receives information via the antenna 71 and sends the received information to the baseband device 73 for processing. In the downlink direction, the baseband device 73 processes information to be transmitted and transmits the information to the rf device 72, and the rf device 72 processes the received information and transmits the processed information through the antenna 71.

The above-mentioned band processing means may be located in the baseband device 73, and the method performed by the network side device in the above embodiment may be implemented in the baseband device 73, where the baseband device 73 includes a processor 74 and a memory 75.

The baseband device 73 may include, for example, at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 7, where one of the chips, for example, the processor 74, is connected to the memory 75 to call up a program in the memory 75 to execute the network-side device operation shown in the above method embodiment.

The baseband device 73 may further include a network interface 76, such as a Common Public Radio Interface (CPRI), for exchanging information with the radio frequency device 72.

Specifically, the network side device of the embodiment of the present invention further includes: the instructions or programs stored in the memory 75 and capable of being executed on the processor 74, and the processor 74 calls the instructions or programs in the memory 75 to execute the method executed by each module shown in fig. 6, and achieve the same technical effect, and are not described herein in detail to avoid repetition.

Optionally, as shown in fig. 8, an embodiment of the present application further provides a communication device 800, which includes a processor 801, a memory 802, and a program or an instruction stored in the memory 802 and executable on the processor 801, for example, when the communication device 800 is a terminal, the program or the instruction is executed by the processor 801 to implement the above-mentioned processes applied to the embodiment of the doppler frequency offset reporting method on the terminal side, and can achieve the same technical effect. When the communication device 800 is a network-side device, the program or the instruction is executed by the processor 801 to implement the above-described processes of the doppler frequency offset reporting embodiment applied to the network-side device, and the same technical effects can be achieved.

The terminal referred to in the embodiments of the present application may refer to a device providing voice and/or data connectivity to a user, a handheld device having a wireless connection function, or other processing device connected to a wireless modem. In different systems, the names of the terminal devices may be different, for example, in a 5G system, the terminal device may be referred to as a User Equipment (UE). A wireless terminal device, which may be a mobile terminal device such as a mobile phone (or called a "cellular" phone) and a computer having a mobile terminal device, for example, a portable, pocket, hand-held, computer-included or vehicle-mounted mobile device, may communicate with one or more Core Networks (CNs) via a Radio Access Network (RAN), and may exchange languages and/or data with the RAN. Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, session Initiation Protocol (SIP) phones, wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs). The wireless terminal device may also be referred to as a system, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile station), a remote station (remote station), an access point (access point), a remote terminal (remote terminal), an access terminal (access terminal), a user terminal (user terminal), a user agent (user agent), and a user device (user device), which is not limited in this embodiment.

The network side device according to the embodiment of the present application may be a Base Transceiver Station (BTS) in Global System for Mobile communication (GSM) or Code Division Multiple Access (CDMA), a Base Station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), an evolved Node B (evolved Node B, eNB or eNodeB) in LTE, a relay Station or an Access point, or a Base Station in a future 5G network, and the like, which is not limited herein.

The network side device and the terminal may each use one or more antennas to perform Multiple Input Multiple Output (MIMO) transmission, where the MIMO transmission may be Single User MIMO (SU-MIMO) or Multi-User MIMO (MU-MIMO). The MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or may be diversity transmission, precoding transmission, beamforming transmission, or the like, depending on the form and number of root antenna combinations.

The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement each process of the above doppler frequency offset reporting method embodiment, and can achieve the same technical effect, and in order to avoid repetition, the description is omitted here.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-on-chip, system-on-chip or system-on-chip, etc.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present application.

While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A Doppler frequency offset reporting method is characterized by comprising the following steps:

the terminal carries out Doppler frequency offset measurement corresponding to at least one sending receiving point TRP;

2. The method of claim 1, wherein the terminal performs at least one TRP corresponding Doppler frequency offset measurement, comprising:

a terminal receives first configuration information sent by network side equipment;

performing Doppler frequency offset measurement corresponding to at least one TRP according to the first configuration information;

3. The method of claim 2, wherein the target resource set comprises at least one of:

tracking a set of reference signal, TRS, resources;

4. The method of claim 2, wherein the first configuration information comprises at least one of:

5. The method of claim 4, wherein the first measurement resource set is partitioned into a plurality of measurement resource subsets, and wherein each resource in each measurement resource subset is associated with a target resource set.

6. The method of claim 4, wherein the second measurement resource set is partitioned into a plurality of measurement resource subsets, and wherein each resource in each measurement resource subset is associated with a target resource set as a QCL reference source.

7. The method of claim 1, wherein the sending doppler frequency offset reporting information to a network side device includes:

the terminal receives second configuration information sent by the network side equipment;

8. The method of claim 7, wherein the second configuration information is used to indicate at least one of:

9. The method of claim 8, wherein the reporting amount configuration of the associated CSI report for Doppler frequency offset information report indicates at least one of:

the terminal reports the independent Doppler frequency offset information;

10. The method of claim 9, wherein the doppler frequency offset information comprises at least one of the following forms:

a Doppler frequency offset value;

wherein the reference value is one of the Doppler frequency offset values.

11. The method of claim 10, wherein in case of reporting the doppler bias value, the terminal reports at least one of:

reporting a difference quantization result of the Doppler frequency offset value;

reporting the positive and negative of a first target Doppler frequency offset value in the Doppler frequency offset values and a differential quantization result of the Doppler frequency offset value, wherein the first target Doppler frequency offset value is a differential calculation reference of the differential quantization.

12. The method of claim 11, wherein the difference calculation reference comprises one of:

the maximum absolute value of the Doppler frequency offset values;

the minimum absolute value of the Doppler frequency offset values;

an average value of the doppler frequency offset values.

13. The method of claim 10, wherein the reference value is a doppler bias value measured by a target resource set providing a frequency offset QCL reference in a TCI state indicated by the network side device.

14. The method according to claim 10, wherein first reference information corresponding to the reference value is configured to the terminal by a network side device through RRC signaling, and the first reference information is used for determining the reference value.

15. The method according to claim 10, wherein the doppler frequency offset report information includes first identification information, the first identification information is used to indicate second reference information corresponding to a reference value for obtaining a doppler frequency offset difference, and the second reference information is used to determine the reference value.

16. The method of claim 10, wherein in case of reporting an absolute value of at least one difference of the doppler bias value and a reference value, the method further comprises:

17. The method of claim 10, further comprising:

18. The method of claim 8, wherein the reporting opportunity configuration comprises at least one of:

reporting periodically;

semi-continuous reporting;

and (6) reporting in an aperiodic way.

19. The method of claim 9, wherein in a case that the reporting amount configuration of the CSI report associated with the doppler frequency offset information report indicates that the terminal reports the doppler frequency offset information and the first CSI report information, further comprising:

wherein the first reporting period includes at least one of:

periodically taking values;

20. The method of claim 1, further comprising:

sending terminal capability information to network side equipment;

21. The method of claim 1, further comprising:

22. A Doppler frequency offset reporting method is characterized by comprising the following steps:

the Doppler frequency offset reporting information is used for indicating Doppler frequency offset information corresponding to at least one sending receiving point TRP obtained by the terminal through measurement.

23. The method of claim 22, further comprising:

sending first configuration information to a terminal, where the first configuration information is used to indicate doppler frequency offset reporting of associated target measurement resources, where the target measurement resources are used for doppler frequency offset measurement, and the target measurement resources include at least one target resource set.

24. The method of claim 23, wherein the target resource set comprises at least one of:

tracking a set of reference signal, TRS, resources;

25. The method of claim 23, wherein the first configuration information comprises at least one of:

a first parameter used for indicating a binding relationship between a first measurement resource set in a CSI resource configuration and a target measurement resource;

26. The method of claim 25, wherein the first measurement resource set is partitioned into a plurality of measurement resource subsets, and wherein each resource in each measurement resource subset is associated with a target resource set.

27. The method of claim 25, wherein the second measurement resource set is partitioned into a plurality of measurement resource subsets, and wherein each resource in each measurement resource subset is associated with a target resource set as a QCL reference source.

28. The method of claim 22, wherein the receiving the doppler frequency offset report information sent by the terminal comprises:

sending second configuration information to the terminal;

29. The method of claim 28, wherein the second configuration information is used to indicate at least one of:

reporting the reporting quantity configuration of the associated CSI reporting by the Doppler frequency offset information;

30. The method of claim 29, wherein the reporting amount configuration of the associated CSI report for doppler frequency offset information reporting is configured to indicate at least one of:

the terminal reports the independent Doppler frequency offset information;

31. The method of claim 30, wherein the doppler frequency offset information comprises at least one of the following:

a Doppler frequency offset value;

wherein the reference value is one of the Doppler frequency offset values.

32. The method of claim 31, wherein the network device receives at least one of the following in case of receiving a doppler bias value:

33. The method of claim 32, wherein the difference calculation reference comprises one of:

the maximum absolute value of the Doppler frequency offset values;

the minimum absolute value of the Doppler frequency offset values;

average value of the doppler frequency offset values.

34. The method of claim 31, wherein the reference value is a doppler frequency offset value measured by a target resource set providing a frequency offset QCL reference in a Transmission Configuration Indication (TCI) state indicated by the network side device for the terminal.

35. The method of claim 31, wherein first reference information corresponding to the reference value is configured to the terminal through RRC signaling, and the first reference information is used for determining the reference value.

36. The method of claim 31, wherein the doppler frequency offset reporting information includes first identification information, the first identification information is used to indicate second reference information corresponding to a reference value for obtaining a doppler frequency offset difference, and the second reference information is used to determine the reference value.

37. The method of claim 31, wherein in case of receiving an absolute value of at least one difference of the doppler bias value and a reference value, the method further comprises:

38. The method of claim 31, further comprising:

39. The method of claim 29, wherein the reporting timing configuration comprises at least one of:

reporting periodically;

semi-continuous reporting;

and (6) reporting in an aperiodic way.

40. The method of claim 30, wherein when the reporting amount configuration of the CSI report associated with doppler frequency offset information reporting indicates that a terminal reports doppler frequency offset information and first CSI report information, the method further comprises:

wherein the first reporting period includes at least one of:

periodically taking values;

41. The method of claim 22, further comprising:

receiving terminal capability information sent by a terminal;

42. The method of claim 22, further comprising:

43. A Doppler frequency offset reporting device is characterized by comprising:

44. A terminal comprising a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the doppler frequency shift reporting method according to any one of claims 1 to 21.

45. A Doppler frequency offset reporting device is characterized by comprising:

the first receiving module is used for receiving Doppler frequency offset reporting information sent by the terminal;

46. A network side device, comprising a processor, a memory and a program or an instruction stored in the memory and executable on the processor, wherein the program or the instruction when executed by the processor implements the steps of the Doppler frequency offset reporting method according to any one of claims 22 to 42.

47. A readable storage medium, storing thereon a program or instructions, which when executed by a processor, implement the steps of the Doppler frequency shift reporting method according to any one of claims 1-42.