CN115276937B - Method, device, terminal and storage medium for sending sounding reference signal - Google Patents

Method, device, terminal and storage medium for sending sounding reference signal Download PDF

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CN115276937B
CN115276937B CN202210844002.3A CN202210844002A CN115276937B CN 115276937 B CN115276937 B CN 115276937B CN 202210844002 A CN202210844002 A CN 202210844002A CN 115276937 B CN115276937 B CN 115276937B
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bandwidth
frequency domain
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CN115276937A (en
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邓周
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Zeku Technology Beijing Corp Ltd
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Zeku Technology Beijing Corp Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated

Abstract

The embodiment of the application discloses a method, a device, a terminal and a storage medium for sending a sounding reference signal, and belongs to the technical field of baseband chips. The method comprises the following steps: determining a target conversion parameter based on a first bandwidth configuration parameter issued by a base station; determining a frequency domain position offset value based on the target conversion parameter and a second bandwidth configuration parameter issued by the base station; determining a frequency domain starting position based on the frequency domain reference position and the frequency domain position offset value; and transmitting a sounding reference signal to the base station according to the frequency domain starting position. The division operation taking the first bandwidth configuration parameter as the divisor is converted into the non-division operation corresponding to the target conversion parameter, so that the number of complex operations such as integral division, modulus taking and the like can be reduced, the calculation complexity of the frequency domain initial position is reduced, and the signal transmission efficiency is improved.

Description

Method, device, terminal and storage medium for sending sounding reference signal
Technical Field
The embodiment of the application relates to the technical field of baseband chips, in particular to a method, a device, a terminal and a storage medium for sending a sounding reference signal.
Background
In a fifth generation mobile communication new radio (5 GNR) system, a base station estimates channel quality in an uplink direction by instructing an end user equipment (UserEquipment, UE) to transmit a sounding reference signal (SoundingReferenceSignal, SRS). In order to avoid mutual interference of different UEs during channel detection, the base station issues different configuration parameters, and the UEs need to determine information such as a frequency domain starting position of SRS transmission based on the configuration parameters and data such as signal transmission time.
In the related art, since the calculation formula of the frequency domain starting position is complex, in order to reduce the calculation complexity, a method of calculating the frequency domain starting position under various configurations in advance and constructing a lookup table is generally adopted to obtain the frequency domain starting position based on the lookup result.
However, there are 64 cell-level SRS bandwidth configuration parameters in the 5GNR system, and one cell-level SRS bandwidth configuration parameter has at most 68 frequency domain starting positions, so that the table look-up method consumes more memory resources, and increases the implementation cost of channel detection.
Disclosure of Invention
The embodiment of the application provides a method, a device, a terminal and a storage medium for sending a sounding reference signal. The technical scheme is as follows:
in one aspect, the present application provides a method for transmitting a sounding reference signal, the method being performed by a baseband chip in a terminal, the method comprising:
determining a target conversion parameter based on a first bandwidth configuration parameter issued by a base station, wherein the first bandwidth configuration parameter is used as a divisor to participate in division operation in the frequency domain position calculation process, and the target conversion parameter is a parameter used for obtaining a division operation result through non-division operation;
determining a frequency domain position offset value based on the target conversion parameter and a second bandwidth configuration parameter issued by the base station, wherein the frequency domain position offset value represents the offset of an actual frequency domain starting position relative to a frequency domain reference position indicated by the base station when a signal is transmitted;
Determining a frequency domain starting position based on the frequency domain reference position and the frequency domain position offset value;
and sending a sounding reference signal to the base station according to the frequency domain starting position.
In another aspect, the present application provides a transmitting apparatus for a sounding reference signal, the apparatus comprising:
the parameter determining module is used for determining a target conversion parameter based on a first bandwidth configuration parameter issued by the base station, wherein the first bandwidth configuration parameter is used as a divisor to participate in division operation in the frequency domain position calculation process, and the target conversion parameter is a parameter used for obtaining a division operation result through non-division operation;
the offset value determining module is used for determining a frequency domain position offset value based on the target conversion parameter and a second bandwidth configuration parameter issued by the base station, wherein the frequency domain position offset value represents the offset of an actual frequency domain starting position relative to a frequency domain reference position indicated by the base station when a signal is transmitted;
the starting position determining module is used for determining a frequency domain starting position based on the frequency domain reference position and the frequency domain position offset value;
and the signal transmitting module is used for transmitting a sounding reference signal to the base station according to the frequency domain starting position.
In another aspect, the present application provides a terminal comprising a processor and a memory; the memory stores at least one program that is loaded and executed by the processor to implement the method for transmitting a sounding reference signal according to the above aspect.
In another aspect, the present application provides a computer readable storage medium having at least one computer program stored therein, the computer program being loaded and executed by a processor to implement the method for transmitting a sounding reference signal as described in the above aspect.
According to one aspect of the present application, there is provided a computer program product comprising computer instructions stored on a computer readable storage medium. The processor of the terminal reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the terminal performs the transmission method of the sounding reference signal provided in various optional embodiments of the above aspect.
The technical scheme provided by the embodiment of the application at least comprises the following beneficial effects:
In the embodiment of the application, the calculation of the frequency domain position offset value comprises a large number of processes involving division operation such as integer division and modulus taking, and binary division operation is more complex, so that the number of complex operations such as integer division and modulus taking can be reduced by converting the division operation with the first bandwidth configuration parameter as the divisor into the non-division operation corresponding to the target conversion parameter, the calculation complexity of the frequency domain initial position is reduced, and the signal transmission efficiency is improved. Compared with the mode of pre-storing the frequency domain initial position under the condition of various parameter configuration, only a small amount of conversion parameters are needed to be stored, and storage resources are saved.
Drawings
Fig. 1 is a block diagram illustrating a structure of a signal transceiving apparatus according to an exemplary embodiment of the present application;
fig. 2 is a flowchart illustrating a method for transmitting a sounding reference signal according to an exemplary embodiment of the present application;
fig. 3 is a flowchart illustrating a method for transmitting a sounding reference signal according to another exemplary embodiment of the present application;
fig. 4 is a flowchart illustrating a method for transmitting a sounding reference signal according to another exemplary embodiment of the present application;
fig. 5 is a flowchart illustrating a method for transmitting a sounding reference signal according to another exemplary embodiment of the present application;
Fig. 6 is a block diagram illustrating a configuration of a transmission apparatus for sounding reference signals according to an exemplary embodiment of the present application;
fig. 7 is a block diagram illustrating a structure of a terminal according to an exemplary embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.
References herein to "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.
In the 5GNR system, the base station estimates channel quality of different frequency bands in the uplink direction by indicating the UE to periodically or aperiodically transmit SRS, so that the transmission of the physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) can be frequency-selectively scheduled according to the estimation result, and the service transmission quality of the uplink is improved. The SRS sounding includes two methods, namely, a method of transmitting a wideband SRS to cover the entire frequency band and a method of transmitting a plurality of narrowband SRS and hopping the frequency band, and a method of combining a plurality of hopping frequencies to cover the entire frequency band. To avoid interference between different UEs in uplink channel sounding, the third generation partnership project (3rd Generation Partnership Project,3GPP) standard employs a tree structure to divide the overall uplink bandwidth into four layers, each layer corresponding to a different sounding bandwidth configuration. Meanwhile, a frequency domain starting position calculation method of SRS is defined, so that the SRS can detect channels of different frequency bands according to a preset frequency hopping pattern. The base station may schedule SRS transmission for each UE by configuring different parameters to avoid sounding interference. And when the UE transmits the SRS, the UE needs to determine the information such as the total detection bandwidth, the detection bandwidth transmitted each time, the frequency domain starting position and the like according to the parameters configured by the base station.
In the NR system, functional modules involved in SRS transmission and reception are shown in fig. 1. The transmitter is used for transmitting wireless signals, and specifically, a ZC sequence is calculated and generated through a Zadoff-Chu (ZC) sequence generating module; modulating the subcarrier by a subcarrier mapping module, and mapping the effective data to the position of the effective subcarrier; quadrature modulation is carried out on each sub-channel through an inverse fast fourier transform (Inverse Fast Fourier Transform, IFFT) module, digital signals are converted into the amplitude and the phase of sub-carriers, and the data spectrum is expressed on the time domain; the cyclic prefix insertion module is used for inserting a symbol prefix so as to eliminate the interference among symbols; and finally, transmitting a wireless signal through a transmitter radio frequency module. The receiver receives the wireless signal through the receiver radio frequency module, and removes the symbol prefix inserted by the transmitter through the cyclic prefix removing module so as to carry out subsequent signal demodulation; converting the signal from the time domain to the frequency domain by a fast fourier transform (Fast Fourier Transform, FFT) module; converting signals transmitted in parallel through a plurality of subcarriers into complete signals in one carrier according to the frequency domain characteristics of the signals through a subcarrier demapping module; and obtaining channel information through a channel estimation module and a ZC sequence generation module so as to demodulate signals. The subcarrier mapping module of the transmitter (e.g. UE) and the demapping module of the receiver (e.g. base station) need to be responsible for calculating the information such as the starting position of the frequency domain.
The 3gpp nr standard TS 38.211 also provides a bandwidth configuration table (6.4.1.4.3-1) defining different SRS bandwidth configuration parameters for different sounding bandwidths. Wherein the number of Resource Blocks (RBs) is detectedm SRS,b All are multiples of 4, and for ease of calculation, can be uniformly divided by 4, as shown in table 1:
TABLE 1
In Table 1, C SRS The cell-level SRS bandwidth configuration parameter corresponds to the total frequency domain bandwidth allocated by the base station for SRS transmission of all the UEs in the cell. B (B) SRS The UE-level SRS bandwidth parameter corresponds to the bandwidth actually occupied by one SRS transmission of the UE. N (N) b The number of signal bands refers to the number of frequency domains in which the bandwidth of the SRS is divided. C (C) SRS And B SRS Together determine the size (m SRS,b ) Is divided into several parts (N b ). For example, in C SRS As an example of=1, referring to table 1, it is assumed that B SRS =0, then each SRS is 8RB (m SRS,0 4=2) in the frequency domain, divided into only 1 part (N 0 =1); suppose B SRS =1, the bandwidth of each SRS is 4RB (m SRS,0 /4=1) divided into 2 minutes (N 1 =2). The base station can configure different C's according to actual requirements SRS And B SRS And flexible frequency domain resource scheduling is realized for each UE in the cell, and interference of SRS transmission is avoided. The cell-level SRS bandwidth configuration has a total of 64 types (numbered 0 through 63) corresponding to a minimum of 4 RBs (i.e., m SRS,b With a value of 1) of a maximum of 272 RBs (i.e., corresponding m SRS,b A value of 68), the number of RBs included is an integer multiple of 4. For a certain cell-level SRS bandwidth configuration, the minimum of 4, 8 or 12 RBs can be corresponding to 4 SRS actual transmission bandwidths, and the maximum of the SRS bandwidth can occupy the whole cell-level SRS bandwidth. If SRS frequency hopping is enabled, the base station can also configure SRS frequency hopping bandwidth parameter b hop To determine the actual total bandwidth of the multiple frequency hopping coverage.
SRS bandwidth configuration at each cell level of NR systemIn the parameters, the maximum bandwidth of the SRS is configured to 272 RBs, and the minimum bandwidth corresponding to each transmission is 4 RBs, so that there are at most 272/4=68 possible frequency domain starting positions. The base station can configure an SRS frequency domain position index parameter n RRC Determining the frequency domain reference position of the UE, wherein the value range of the parameter is 0-n RRC And is less than or equal to 67. When frequency hopping is enabled, the actual frequency domain initial position of each SRS transmission also needs to be superimposed with a frequency hopping offset F on the frequency domain reference position b (n SRS ) Frequency hopping offset and SRS transmission timing count value n SRS And (5) correlation.
The SRS transmission frequency domain start position k is defined in detail in the standard TS38.211 0 Is calculated according to the formula:
wherein,is a frequency domain reference position,/a>Is a frequency domain position offset value.
In the frequency domain, the position offset value k Δ In the calculation formula of (c),is the number of subcarriers in each RB, +.>Has a value of 12; m is m SRS,b The SRS bandwidth corresponding to each layer of the bandwidth tree structure can be obtained based on the cell-level bandwidth configuration parameters and the UE-level bandwidth configuration parameters (e.g., when the cell-level bandwidth configuration parameters C SRS Configuration of parameters B for 0, UE-level bandwidth SRS When 0, m is as follows from the bandwidth allocation table shown in Table 1 SRS,0 With/4 being 1, i.e. m SRS,0 4; when C SRS Is 4 and B SRS When 1, m is SRS,1 And/4 is2, i.e. m SRS,1 8); n is n b Index numbers corresponding to each layer of the bandwidth tree structure are calculated as follows:
wherein, square brackets are rounding operators, mod is remainder operators. For convenience of description, when the rounding operator is in a partial form, the application refers to the operation as a dividend-to-divisor integer division operation. For exampleRepresenting the integer division of a by b.
Frequency hopping offset F b (n SRS ) The calculation formula of (2) is as follows:
in the calculation of the above formula, when b' =b hop When N is ignored b’ Is to take N bhop ＝1。
The bandwidth index number n b The calculation formula of (a) unifies the two situations of disabling frequency hopping and enabling frequency hopping, when b is configured hop ≥B SRS SRS hopping is disabled when configuration b hop ＜B SRS At this time, SRS hopping is enabled.
It can be seen that the optimization purpose of the frequency domain starting position calculation is mainly to reduce the bandwidth index number n b Frequency hopping offset F b (n SRS ) Is used for the calculation of the complexity of the calculation of (a). The calculation process involves complex calculations such as integer division, modulus taking, continuous multiplication and the like, and the realization difficulty and the cost are high. In order to reduce the computational complexity and simplify the computational process, a method based on table lookup is proposed in the related art. In the related art, a developer calculates frequency domain initial position patterns in various configurations in advance when frequency hopping is performed, a lookup table is constructed, and a terminal can obtain a frequency domain initial position based on a lookup result. However, there are 64 cell-level SRs in the NR systemS bandwidth configuration parameters, and 68 frequency domain initial positions can exist at most in one cell-level SRS bandwidth configuration parameter, and the scheme in the related technology consumes more storage resources and increases the implementation cost.
The application provides a method for transmitting a detection signal. The method for sending the detection signal provided by the embodiments of the application is applied to the terminal provided with the baseband chip, and the terminal can be a smart phone, a tablet personal computer, an electronic book reader, a personal portable computer, a desktop computer and the like.
Referring to fig. 2, a flowchart of a method for transmitting a probe signal according to an exemplary embodiment of the present application is shown. The embodiment of the application is illustrated by taking the method as an example executed by a baseband chip in the terminal. The method comprises the following steps:
Step 201, determining a target conversion parameter based on a first bandwidth configuration parameter issued by the base station, wherein the first bandwidth configuration parameter is used as a divisor to participate in division operation in the frequency domain position calculation process, and the target conversion parameter is a parameter used for obtaining a division operation result through non-division operation.
After the terminal establishes communication connection with the base station, the base station transmits bandwidth configuration parameters to the terminal. The bandwidth configuration parameters comprise first bandwidth configuration parameters, wherein the first bandwidth configuration parameters refer to parameters which are used as divisors to participate in division operation in the frequency domain position calculation process.
As can be seen from the above formula, after the base station issues the bandwidth configuration parameter, the terminal needs to calculate the frequency domain starting position based on the parameter and the data such as the timing of transmitting the SRS itself. In the frequency domain initial position calculation formula specified by the communication standard, a plurality of division operations exist, and a numerator and a denominator in the division formula are complex. However, by simplifying the frequency domain starting position calculation formula, a simple non-division operation between the conversion parameter and the dividend can be used to replace the division operation between the divisor and the dividend in the calculation formula. Taking bandwidth configuration parameters under various conditions into consideration, and taking the divisor value and the detection resource block number m SRS,b Number of signal bands N b Correlation (the calculation formula based on the frequency domain position offset value can be known, the related divisor packetDraw m SRS,b N b ). As can be seen from Table 1, the number of sounding reference blocks, m SRS,b Number of signal bands N b At the time of extracting 2 n Then, the number of the obtained odd numbers is smaller than the number of the cell-level bandwidth configuration parameters, namely m in the original table SRS,b N b The value of tens of values is extracted 2 n Only 12 values of 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, and 27 are involved (division conversion is not required when 1 is a divisor). The number of conversion parameters that the terminal needs to store is therefore smaller than the number of cell-level bandwidth configuration parameters (consider extraction 2 n For the odd reason, reference may be made to the following implementation principle of using a non-division operation instead of a division operation).
In a possible implementation manner, under the condition that various parameter configurations are prestored in the terminal, conversion parameters required in the calculation process of the frequency domain position offset value and a corresponding relation between the conversion parameters and the first bandwidth configuration parameters are stored in the terminal. The terminal determines a corresponding target conversion parameter based on a specific value of the first bandwidth configuration parameter issued by the base station. In the calculation process of the frequency domain starting position corresponding to the bandwidth configuration parameter, division operation in a calculation formula can be realized only by utilizing a part of prestored conversion parameters.
For example, the baseband chip stores 10 groups of conversion parameters, and the base station issues C SRS 7. Based on C in Table 1 SRS At 7, the divisor m involved in the calculation process SRS,b N b The values 1, 2, 3, 6 of (2) are found to be 2 in the divisor extraction n The terminal then needs at most 3 as a conversion parameter for the divisor, so the terminal determines a set of conversion parameters corresponding to the divisor 3 as the target conversion parameters (in other values of the bandwidth configuration parameters, more sets of conversion parameters may be needed).
In one possible implementation, the principle of implementing the division operation by a non-division operation using the conversion parameter instead of the divisor is as follows:
1. the unsigned integers a, b and c are provided, the remainder of q is the quotient of a divided by bc, and the remainder is r, and the method comprises the following steps:
a＝qbc+r，0≤r≤bc-1
let the quotient of r divided by b be q 'and the remainder be r', there are:
r＝q’b+r’，0≤r’≤b-1，0≤q’≤c-1
a= qbc +r= qbc +q 'b+r', and thereforeAnd (q is the integer division result).
2. Assuming a integer divisor of a divisor of d, the divisor can be decomposed into d=2 n Form c, where the divisor c is an odd number. According to the formulaIt is known that a is integer divisor of d>Can be converted into: /> Let->Then->Wherein (due to binary calculation) the integer division operation +.>This is easily achieved by performing a shift operation on a. And integer division operation- >A set of transformation parameters (N, M, L) can be pre-calculated based on the value of divisor c and the range of divisor s (due to the shift involved, the appropriate transformation parameters are selected taking into account the range of s) such that the equation>All s in the value range are true, and the conversion parameters are stored in the terminal. Schematically, for integer division operations +.>The divisor can be decomposed into 6=2 1 3, then->Wherein->Can be achieved by shifting, resulting in a result of 5, whereas +.>Can be converted into an expression based on the conversion parameters (N, M, L) corresponding to 3Such as (2, 1, 2).
In combination with the above two points, a developer can determine the value range of the dividend s in advance based on various bandwidth configuration parameters, and select appropriate conversion parameters (N, M, L) in combination with various value conditions of c, so that the terminal converts division operation into combination of non-division operations such as multiplication operation, addition operation, shift operation and the like.
Step 202, determining a frequency domain position offset value based on the target conversion parameter and a second bandwidth configuration parameter issued by the base station.
When the frequency domain position offset value characterizes signal transmission, the offset of the actual frequency domain initial position of the signal relative to the frequency domain reference position indicated by the base station.
If the terminals all transmit signals according to the frequency domain reference positions indicated by the base station, more signal interference exists when more terminals exist in the cell. By setting the frequency domain position offset value, the frequency domain offset is carried out on the basis of the frequency domain reference position when the signal is transmitted in a frequency hopping manner, so that the condition of signal interference can be effectively reduced.
The second bandwidth allocation parameter includes a parameter which is not used as a divisor parameter for division operation in the frequency domain position offset value calculation formula. After the terminal obtains the target conversion parameter, the terminal obtains the frequency domain position offset value k through non-division operation between the target conversion parameter and the second bandwidth configuration parameter Δ 。
Step 203, determining a frequency domain starting position based on the frequency domain reference position and the frequency domain position offset value.
Calculation type based on the above frequency domain initial positionThe terminal determines the bandwidth index number n b Then, the number of sub-carriers in each RB is also required to be +.>Frequency domain position offset value k Δ The RB number m obtained by inquiring in the steps SRS,b (according to C issued by base station) SRS B, B SRS Obtained by table look-up), the frequency domain initial position k when SRS is actually transmitted is calculated 0 。
Step 204, transmitting the sounding reference signal to the base station according to the frequency domain starting position.
After the terminal calculates the frequency domain initial position, the terminal sends a sounding reference signal to the base station based on the information such as the frequency domain initial position and the like which are also included in the bandwidth configuration parameters.
As can be seen from fig. 1, after receiving the SRS transmitted by the UE, the base station also needs to calculate the frequency domain starting position of the SRS through a subcarrier demapping module in the baseband chip, so as to perform subsequent operations such as channel quality estimation and frequency selective scheduling. In a possible implementation manner, the base station also stores the conversion parameters required in each case, and after receiving the SRS, the base station calculates the frequency domain starting position according to the same calculation procedure as the terminal.
In summary, in the embodiment of the present application, since the calculation of the frequency domain position offset value includes a large number of processes involving division operations, such as integer division and modulus taking, and binary division operations are relatively complex, the number of complex operations, such as integer division and modulus taking, can be reduced by converting the division operation with the first bandwidth configuration parameter as the divisor into the non-division operation corresponding to the target conversion parameter, thereby reducing the calculation complexity of the frequency domain initial position and improving the signal transmission efficiency. Compared with the mode of pre-storing the frequency domain initial position under the condition of various parameter configuration, only a small amount of conversion parameters are needed to be stored, and storage resources are saved.
The derivation process for the implementation principle of the above embodiment, the calculation of which is established, is as follows.
The formulas involved in the derivation calculation are explained first. The unsigned integers a, b and c are provided, the remainder of q is the quotient of a divided by bc, and the remainder is r, and the method comprises the following steps:
a＝qbc+r，0≤r≤bc-1
let the quotient of r divided by b be q 'and the remainder be r', there are:
r＝q’b+r’，0≤r’≤b-1，0≤q’≤c-1
a= qbc +r= qbc +q 'b+r'.
The following three formulas can be proven to hold.
Equation 1:
equation 2:
equation 3: amod b= (a mod bc) mod b
In particular, in equation 2, when b=2 n At the time, there areWherein, pair 2 n The integer division operation of (c) may be implemented by a shift operation.
Frequency domain start position k of SRS signal 0 The calculation formula of (2) is as follows:
wherein the key is the bandwidth index number n b (0≤b≤B SRS ) And n b The calculation formula when disabling frequency hopping is:
the calculation formula when frequency hopping is enabled is:
thus, the calculation formula when frequency hopping is disabled can be unified in the calculation formula when frequency hopping is enabled. As can be seen from an examination of the above formulas, the same terms exist in the formulas in both cases, where b > b h o p In the case of (2) the superimposed frequency hopping offset F b (n SRS ) And (5) performing calculation. The bandwidth can thus be indexed by the number n b The calculation is divided into two parts, i.e. n b ＝(n b,0 +n b,1 )mod N b Wherein n is b,0 For the first index operator, n b,1 Is the second index operator.
When b is less than or equal to b hop When the method is used, the following steps are included:
n b，1 ＝0
when b > b hop When the method is used, the following steps are included:
n b，1 ＝F b (n SRS )modN b
1. consider a first index operator n b,0 Is calculated by the computer.
As can be seen from Table 1, the number of sounding reference blocks, m SRS,b Are all multiples of 4 and satisfy m SRS,b-1 ＝m SRS,b N b 1.ltoreq.b.ltoreq.3, so for b=3:
for b=2, 1, it can be deduced from equation 2:
for b=0, since (table 6.4.1.4.3-1 provision of 3gpp nr standard TS 38.211) N 0 Fixed value is 1, therefore:
it can be seen that n b,0 There is an iterative relationship between them. Therefore, the first index operator n b,0 The calculation of (c) may be performed in an iterative manner. Order theq b Is the first iterative operator. The terminal calculates a first reference iterative operator firstly, then obtains the next first iterative operator based on the iterative relation between two adjacent first iterative operators, and the calculation formula is not required to be recalculatedThe iterative calculation is performed as follows:
1. at q 3 For the first reference iteration operator, the terminal first calculatesThen when b=3, 2,1, sequentially calculate:
n b，0 ＝q b mod N b ＝q b -q b-1 N b
it can be seen that the first index operator n b,0 Only the calculation of m needs to be considered SRS,b N/4 and N b The integer division of the values is realized.
Also, since the divisor is assumed to be a and the divisor is d, the divisor can be decomposed into d=2 n Form c, where the divisor c is an odd number. From equation 2, the integer division of a by dCan be converted into: />Let->ThenWherein (due to binary calculation) the integer division operation +. >This is easily achieved by performing a shift operation on a. And integer division operation->A set of transformation parameters (N, M, L) can be pre-calculated based on the value of the divisor c and the range of values of the dividend s such that the equation->Is true for all s in the value range, andthe conversion parameters are stored in the terminal. Thereby converting the integer divide operation into a combination of multiply, add, and shift operations.
Due to the first index operator n b，0 Only the calculation of m needs to be considered SRS，b N/4 and N b So that when considering the configuration parameters in all cases, the corresponding divisor c to be referred to also only needs to consider N b And m corresponding to the first reference iteration operator SRS，b Various possible values are/4. Such as when the first reference iteration operator isWhen passing through m in Table 1 SRS，3 Column corresponding to/4 and N 3 、N 2 、N 1 、N 0 The corresponding column indicates that the divisor c corresponds to only 10 values of 3, 5, 7, 9, 11, 13, 15, 17, 19, 23, so that a total of 10 sets of conversion parameters need to be stored.
2. To be used forFor the first reference iteration operator, for b=0, because N 0 The fixed value is 1, and the method comprises the following steps:
for b=1, 2, …, B SRS There are according to equation 1:
therefore, n b，0 The calculation of (2) may also be performed as follows:
First, calculating:
r′ 0 ＝n RRC mod(m SRS，0 /4)＝n RRC -q′ 0 (m SRS，0 /4)
then, sequentially iterating the computations b=1, 2, …, B SRS Time n b，0 Is a value of (2). It can be deduced from equation 3:
r′ b ＝n RRC mod(m SRS，b /4)
＝(n RRC mod(m SRS，b /4)N b )mod(m SRb，b /4)
＝(n RRC mod(m SRS，b-1 /4))mod(m SRS，b /4)
＝r′ b-1 mod(m SRS，b /4)
the iterative calculation is:
r′ b ＝r′ b-1 mod(m SRS，b /4)＝r′ b-1 -q′ b (m SRS，b /4)
obtaining n b，0 ＝q′ b ，1≤b≤B SRS 。
When the first reference iteration operator isWhen passing through m in Table 1 SRS，0 Column corresponding to/4 and N 3 、N 2 、N 1 、N 0 The corresponding columns show that the divisor c only corresponds to 13 values of 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 27, 33, so that a total of 13 conversion parameters need to be stored.
Therefore, compared with a table look-up method in the related art, the method has the advantages that the data volume required to be stored is greatly reduced, complex operations such as continuous multiplication and division are not included in required calculation, and iteration operators under various conditions can be obtained through simple iteration calculation only by calculating a reference iteration operator, so that the efficiency of signal processing and transmitting is improved.
Iterative calculations can yield n in all cases b，0 B is more than or equal to 0 and less than or equal to 3, and each signal transmission corresponds to only one configuration parameter, so that the actual calculation process of the SRS frequency domain starting position only needs to involve a part of n b，0 The value range of the corresponding B is more than or equal to 0 and less than or equal to B SRS ≤3。
2. Next consider the second index operator n b，1 Is calculated by the computer.
When b is less than or equal to b hop When n is b，1 ＝0。
When b hop ＜b≤B SRS When substituting the frequency hopping offset F b (n SRS ) N is represented by the expression of (2) b,1 Can be written as:
order theAccording to equation 1, there are:
will p b Substitution of the converted expression into n b,1 And simplify, n b,1 Can be written as:
due to p b ＜N b According to p b Parity of value, n b,1 Can be further simplified into:
order of not onlyThen there is n b,1 ＝n′ b,1 mod N b The embodiment of the application leads to n' b,1 Referred to as the third index operator. Thus, the terminal may first calculate the third index operator n' b,1 Then to N b And taking the modulus to obtain a second index number operator. Since the third index operator satisfies the relation-N b <n′ b,1 <N b So for N b The modulo operation of (2) can be discussed in terms of cases, simplified as:
the terminal only needs to be according to n' b,1 Determining n by the polarity of (2) b,1 The actual modulo operation is not required.
It can be seen that the second index number operator n b,1 In the calculation process of (2), the key point is p b Is calculated by the computer. Since b.ltoreq.b hop When n is b,1 Because of the fact that =0, the value range of b, which is actually required to be calculated, is b hop ＜b≤B SRS . For example, when b hop ＝0，B SRS When=3, according to p b Is calculated by (a) and (b)And equation 2, there is: />
p 1 ＝n SRS modN 1
Therefore, p b Iterative calculations may also be used. Here let t hop ＝n SRS When b hop ＜b≤B SRS I.e. b hop +1≤b≤B SRS At the same time, sequentially calculating:
p b ＝t b-1 modN b ＝t b-1 -t b N b
it can be seen that, similar to the calculation of the first index operator, the calculation of the second index operator only requires consideration of the iterative calculation t b In the process of (2), for N b All possible values are divided. Since the integer division implementation method is similar to the integer division implementation method in the first index operator calculation process, the derivation process thereof is not described here. According to N in Table 1 b The values of the divisor c are similarly 10 of 3, 5, 7, 9, 11, 13, 15, 17, 19, 23 (N is decomposed here) b ＝2 n C), where the divisor a has a value in the range 0.ltoreq.a.ltoreq.n SRS The terminal also needs to store 10 additional sets of conversion parameters.
3. Solving for a first index number operator n b,0 And a second index operator n b,1 After the value of (2), the terminal can calculate the bandwidth index number n b Has a value of n b ＝(n b,0 +n b,1 )modN b ,0≤b≤B SRS . Because 0.ltoreq.n b,0 ≤N b And 0.ltoreq.n b,1 ≤N b So 0.ltoreq.n b,0 +n b,1 ≤2N b . At this time, for N b The modulo operation of (2) can be simplified by a case-by-case discussion to obtain:
finally, according to the bandwidth index number n b Can calculate SRS frequency domain start position k 0 ：
The SRS transmission includes both enabling frequency hopping and disabling frequency hopping. Based on the above deduction result, in case of enabling frequency hopping, the bandwidth index n b By a first index operator n b,0 And a second index operator n b,1 The terminal needs to perform iterative operation on the first reference iterative operator and the second reference iterative operator respectively to obtain a first index number operator and a second index number operator, and further obtain a bandwidth index number. Referring to fig. 3, a flowchart of a method for transmitting a probe signal according to another exemplary embodiment of the present application is shown. The embodiment of the application is illustrated by taking the method as an example executed by a baseband chip in the terminal. In case the bandwidth configuration parameter indicates that frequency hopping is enabled, the method comprises the steps of:
Step 301, determining a target conversion parameter based on a first bandwidth configuration parameter issued by the base station, wherein the first bandwidth configuration parameter is used as a divisor to participate in division operation in the frequency domain position calculation process, and the target conversion parameter is a parameter for obtaining a division operation result through non-division operation.
In one possible implementation, the first bandwidth configuration parameter sent by the base station includes the target cell bandwidth sequence number C SRS . Terminal based on target cell bandwidth sequence number C SRS Querying the bandwidth allocation table (as shown in Table 1) can obtain a corresponding row m SRS,b N b Is a value of (a). Because in the embodiment of the application, the terminal can obtain the integer division iteration relation based on the iteration operators corresponding to the bandwidth sequence numbers of the adjacent terminals only by calculating the reference iteration operatorBandwidth index n of b under various values b . For example, calculate +.>Then, the relation is just the following>And n b,0 ＝q b mod N b ＝q b -q b-1 N b According to N b Step by step calculation of q 2 、q 1 、q 0 And a corresponding first reference iteration operator n 2,0 、n 1,0 、n 0,0 . Therefore, the terminal only needs to determine m when the terminal bandwidth serial number takes the reference value SRS,b N under condition of each terminal bandwidth serial number value b Without determining all m SRS,b Corresponding conversion parameters. The process of performing an iterative operation based on the reference iterative operator to obtain the bandwidth index number may refer to step 302 described below.
For the specific implementation of step 301, reference may be made to step 201 described above, and the embodiments of the present application are not described herein again.
Step 302, determining a bandwidth index number based on the target conversion parameter and the second bandwidth configuration parameter, wherein the bandwidth index number is used for indicating a frequency domain position in the bandwidth tree structure.
Calculation formula based on frequency domain position offset valueIt can be seen that to obtain the frequency domain position offset value, it is first necessary to calculate B under various values (i.e. terminal bandwidth sequence number B SRS Under various values) bandwidth index n b . Based on bandwidth index number n b Is>It can be seen that the bandwidth index number n b Convertible into an iterative operator q b And the number of signal bands N b And between iteration operators in the bandwidth index number calculation formula corresponding to the adjacent terminal bandwidth sequence number (q b And q b-1 Between) there is a integer division iteration relationship. For example:
n b,0 ＝q b mod N b ＝q b -q b-1 N b
therefore, the terminal can be based on m when the terminal bandwidth sequence number is the reference value SRS,b Various N b And calculating a reference iteration operator according to the corresponding target conversion parameters, and performing iteration operation to obtain bandwidth index numbers under various values.
In one possible implementation manner, the first bandwidth configuration parameter includes a target cell bandwidth sequence number, the second bandwidth configuration parameter includes a target terminal bandwidth sequence number and a frequency domain location index parameter, where the terminal bandwidth sequence number and the cell bandwidth sequence number collectively indicate the number of sounding resource blocks occupied by the sounding reference signal and the number of signal frequency bands, and the frequency domain location index parameter is used to indicate a frequency domain reference location. Step 302 specifically includes the following steps 302a to 302b:
Step 302a, determining a reference iteration operator based on the target conversion parameter and the second bandwidth configuration parameter.
The reference iteration operator refers to an iteration operator when the terminal bandwidth sequence number is the reference value, the iteration operator is an integer division operator of the frequency domain position index parameter to the number of the detection resource blocks, or an integer division operator of the sending opportunity count value to the number of the signal frequency bands, and the sending opportunity count value indicates the transmitted times of the detection reference signal.
The formula n obtained by the above simplification b ＝(n b,0 +n b,1 )mod N b It can be seen that the bandwidth index number n b Divided into two parts, i.e. first index operator n b,0 And a second index operator n b,1 . Therefore, the terminal needs to calculate the first index number operator n respectively b,0 Reference iteration operator of (2) and second index number operator n b,1 Is included.
For the first index operatorAnd a integer division iteration relation exists between the first index number operators under the adjacent terminal bandwidth sequence numbers: />n b,0 ＝q b mod N b ＝q b -q b-1 N b . Thus, an iterative operator q is calculated b Then, the adjacent iterative operators q can be calculated step by step b-1 Or q b+1 Finally obtaining a first index number operator n of b under various values b,0 . (based on Table 1, the values of b are in the ranges of 0, 1, 2, and 3).
Likewise, for the second index operator n b,1 ：
It can be seen that the second index operator n b,1 In the calculation process of (2), the key point is p b Is calculated by the computer. And p under adjacent terminal bandwidth sequence number b The integer division iteration relation exists between:p b ＝t b-1 modN b ＝t b-1 -t b N b . Thus, in calculating an iteration operator t b Then, the adjacent iterative operators t can be calculated step by step b-1 Finally obtaining a first index number operator n of b under various values b,0 。
The calculation of the reference iteration operator and the subsequent integer division iteration operation of the reference iteration operator can be realized through non-division operation corresponding to the target conversion parameter.
Step 302b, performing iterative operation on the reference iterative operator based on the iterative relation between the iterative operators of the terminal bandwidth sequence numbers under different values to obtain the bandwidth index number.
Step 303, determining a frequency domain position offset value based on the bandwidth index number.
The terminal calculates and obtains the bandwidth index number n of b under various values b Thereafter, based on bandwidth index number n b Number of subcarriers in each RB(fixing)Value 12) and b m in the case of various values SRS,b The frequency domain position deviation value can be calculated>
Step 304, determining a frequency domain starting position based on the frequency domain reference position and the frequency domain position offset value.
In step 305, a sounding reference signal is sent to the base station according to the frequency domain starting position.
For the specific implementation of step 304 to step 305, reference may be made to step 203 to step 204, and the description of the embodiment of the present application is omitted here.
In the embodiment of the application, a frequency domain position offset value calculation formula is obtained by calculating a reference iteration operator and based on the iteration relation between the iteration operators corresponding to the adjacent terminal bandwidth sequence numbersThe bandwidth index number of b under various values does not need to be completely executed in sequence. And, the calculation of the reference iterative operator and the integer division in the subsequent iterative operation can be realized by the target transformation parameter and the non-division operation. Therefore, the operation amount can be greatly reduced, and the calculation complexity is reduced.
Due to bandwidth index number n b Divided into two parts, i.e. first index operator n b,0 And a second index operator n b,1 . Therefore, the terminal needs to calculate the first index number operator n respectively b,0 Reference iteration operator of (2) and second index number operator n b,1 Is included.
Referring to fig. 4, a flowchart of a method for transmitting a probe signal according to another exemplary embodiment of the present application is shown. The embodiment of the application is illustrated by taking the method as an example executed by a baseband chip in the terminal. In case the bandwidth configuration parameter indicates that frequency hopping is enabled, the method comprises the steps of:
Step 401, determining a target conversion parameter based on a first bandwidth configuration parameter issued by the base station, wherein the first bandwidth configuration parameter is used as a divisor to participate in division operation in the frequency domain position calculation process, and the target conversion parameter is a parameter used for obtaining a division operation result through non-division operation.
For the specific implementation of step 401, reference may be made to step 201, and the description of this embodiment of the present application is omitted here.
Step 402, determining a first reference iteration operator based on the target conversion parameter and the second bandwidth configuration parameter, wherein the first reference iteration operator is an integer division operator of the frequency domain position index parameter pair detection resource block number.
First index operator n b,0 The expression of (2) isFor b=3, the following is satisfied: /> For b=2, 1, it can be deduced from equation 2: /> N1, 0=nrpcmsrs, 1/4 modn2=nrpcmsrs, 3/4/N3/N2modN1. It can be seen that an iterative relationship exists between nb,0, so that the terminal only needs to calculate a reference operator, and then the required nb,0 is obtained through iterative operation. Wherein the first iterative operator is->
Optionally, the terminal is set to q 3 Performing iterative computation for the first reference iterative operator, or the terminal performs iterative computation based on another iterative computation formula to obtain q 0 Performing iterative computation for the first reference iterative operator, or the terminal uses q in the middle based on other iterative computation formulas 1 Or q 2 Is a first reference stackAnd carrying out iterative computation by the substitution operator. The embodiment of the present application is not limited thereto. And the calculation of the first reference iteration operator can refer to a deduction process, and the division operation in the deduction process is realized by utilizing the target transformation parameters.
Schematically, the terminal is represented by q 3 And performing iterative computation for the first reference iterative operator. First, based on the number m of probing resource blocks in the bandwidth configuration parameter SRS，3 Determining divisor c and then indexing parameter n based on frequency domain position in bandwidth configuration parameters RRC Determining the dividend s and calculating based on the target conversion parameters (N, M, L) corresponding to the divisor cI.e. the first reference iteration operator q 3 Is a value of (2).
Step 403, determining a second reference iteration operator based on the target conversion parameter and the transmission opportunity count value, where the second reference iteration operator is an integer division operator of the transmission opportunity count value to the signal frequency band number.
The second reference iteration operator is an integer division operator of the signal transmission count value to the signal frequency band number.
Likewise, the second index operator n b,1 Also requiring iterative operations based on reference iterative operators. From the above derivation, the terminal uses t b For the second iterative operator, at t 0 For the second reference iteration operator, a second index number operator n is calculated b,1 Important term p in (2) b . Wherein the second reference iteration operator t 0 Equal to the signal transmission time count value n SRS . Wherein the signal transmission timing count value n SRS And determining by the terminal based on the historical SRS transmission conditions.
It should be noted that there is no strict sequence of execution between the step 402 and the step 403. The terminal may perform step 402 and then perform step 403, or may perform step 403 and then perform step 402, or perform step 402 and step 403 simultaneously, which is not limited in this embodiment of the present application.
Step 404, performing iterative operation on the first reference iterative operator based on the target transformation parameter, and determining a first index number operator.
In one possible implementation manner, the reference value corresponding to the first reference iteration operator is the maximum value in the terminal bandwidth sequence number value range, that is, the terminal bandwidth sequence number corresponding to the first reference iteration operator is 3, that is, the terminal uses q 3 The step 404 specifically includes the following steps 404a to 404b of performing an iterative operation for the first reference iterative operator:
step 404a, generating the i-1 first iteration operator based on the i-th first iteration operator and the target conversion parameter corresponding to the i-th terminal bandwidth sequence number. The ith first iteration operator is obtained by carrying out one round of iterative operation on the first reference iteration operator or the (i+1) th first iteration operator based on the target conversion parameter, and i is a positive integer.
Iterative calculation formula based on pre-derivationThe terminal iterates an operator q with a first reference 3 For the first iterative operator, calculating to obtain a second first iterative operator +.>Wherein the division operation is also realized by the target conversion parameter corresponding to the divisor c, and the divisor c satisfies N 3 ＝2 n C, the dividend s satisfying +.>Can be obtained by iterating the operator q through the first reference 3 Is obtained.
And so on, the terminal is based on the ith first iteration operator q i And the target conversion parameter corresponding to the ith terminal bandwidth sequence number (i.e. based on N i Generating an i-1 first iteration operator q according to a target conversion parameter corresponding to the obtained divisor c) i-1 。
And step 404b, determining an ith index number operator corresponding to the ith first iteration operator as a first index number operator under the condition that the value of i-1 is consistent with the bandwidth sequence number of the target terminal.
When q is calculated i-1 And i-1 and target terminal bandwidth sequence number B SRS When the two values are consistent, the terminal stops iterative operation and is based on q i-1 Determining a first index operator n i-1,0 (i.e., n to be calculated) b,0 )。n i-1,0 ＝q i -q i-1 N i 。
In another possible embodiment, the reference value corresponding to the first reference iteration operator is the minimum value in the terminal bandwidth sequence number value range, that is, the terminal bandwidth sequence number corresponding to the first reference iteration operator is 0, that is, the terminal uses q 0 The step 404 specifically includes the following steps 404c to 404d:
step 404c, generating the (i+1) th first iteration operator based on the (i) th first iteration operator and the target conversion parameter corresponding to the (i) th terminal bandwidth serial number, wherein the (i) th first iteration operator is obtained by performing one round of iterative operation on the first reference iteration operator or the (i-1) th first iteration operator based on the target conversion parameter, and i is a positive integer.
And step 404d, determining the (i+1) th index operator corresponding to the (i+1) th first iteration operator as the first index operator under the condition that the value of the (i+1) is consistent with the bandwidth sequence number of the target terminal.
In the above scheme n b,0 The iterative calculation of (a) starts from b=3, and another scheme may be adopted, starting from b=0.
For b=0, because of N 0 The fixed value is 1, and the method comprises the following steps:
for b=1, 2, …, B SRS There are according to equation 1:
therefore, n b,0 The calculation of (2) may also be performed as follows:
first, calculating:
r′ 0 ＝n RRC mod(m SRS,0 /4)＝n RRC -q′ 0 (m SRS,0 /4)
then, sequentially iterating the computations b=1, 2, …, B SRS Time n b,0 Is a value of (2). It can be deduced from equation 3:
/>
the iterative calculation is:
r′ b ＝r′ b-1 mod(m SRS，b /4)＝r′ b-1 -q′ b (m SRS，b /4)
obtaining n b,0 ＝q′ b ,1≤b≤B SRS 。
The m is considered in calculation SRS,b And/4 integer division of various values. The integer divide implementation is similar to that in the above scheme, but from table 1 it is clear that all possible divisor values to be considered are 13, 3,5,7,9, 11, 13, 15, 17, 19, 21, 23, 27, 33, thus 13 sets of integer conversion parameters need to be stored.
And step 405, performing iterative operation on the second reference iterative operator based on the target conversion parameter, and determining a second index number operator.
Based on the above derivation, the second index operator n b,1 Also, the calculation of (a) requires iterative operation based on a reference iterative operatorAnd (5) calculating. In one possible implementation, the step 405 specifically includes the following steps 405a to 405c:
and step 405a, performing iterative operation on the second reference iterative operator to generate a second iterative operator corresponding to the bandwidth sequence number of the target terminal.
Referring to the above derivation procedure, the terminal takes t as hop ＝n SRS For the second reference iterative operator, sequentially calculating based on the target transformation parametersI.e. the second iteration operator corresponding to the bandwidth sequence number of the target terminal, thereby obtaining p b ＝t b-1 modW b ＝t b-1 -t b W b . And then based on p b Obtaining a third index operator +.>
Based on the integer division implementation method provided by the application, step 405a includes the following steps:
step one, generating an ith and 1 second iteration operator based on the ith second iteration operator and a target conversion parameter corresponding to the (i+1) th terminal bandwidth serial number.
The ith second iteration operator is obtained by carrying out one-round waiting operation on the second reference iteration operator or the ith-1 second iteration operator based on the target transformation parameter, and i is a positive integer.
The terminal iterates the operator t with a second reference 0 For the first and second iterative operators, calculating to obtain a second and first iterative operatorWherein the division operation is also realized by the target conversion parameter corresponding to the divisor x, and the divisor c satisfies N 1 ＝2 n C, the dividend s satisfying +.>By iterating the operator t over a second reference 0 Is shifted by (a) to be shifted by (b)Obtained.
And so on, the terminal is based on the ith second iteration operator t i And the target conversion parameter corresponding to the ith terminal bandwidth sequence number (i.e. based on N i Generating the (i+1) th first iteration operator t according to the target conversion parameter corresponding to the obtained divisor c) i+1 。
And step two, determining a second iteration operator corresponding to the (i+1) th terminal bandwidth sequence number as a second iteration operator corresponding to the target terminal bandwidth sequence number under the condition that the value of the (i+1) is consistent with the target terminal bandwidth sequence number.
When calculating t i+1 And i+1 and target terminal bandwidth sequence number B SRS When the two values are consistent, the terminal stops iterative operation and is based on t i+1 (i.e., t to be calculated) b ) Determining a second index operator n i+1,1 (i.e., n to be calculated) b,1 )。
Step 405b, determining a third index number operator based on the second iteration operator corresponding to the target terminal bandwidth sequence number, where the third index number operator is obtained by combining the second iteration operator corresponding to the target terminal bandwidth sequence number and the target terminal bandwidth sequence number through addition, multiplication, shift and rounding.
The terminal determines a second iteration operator t corresponding to the bandwidth sequence number of the target terminal b Then, the important calculation formula p in the second index operator is obtained b ＝t b-1 modN b ＝t b-1 -t b N b And further calculating to obtain a third index number operator Wherein the integer division operation on 2 can be implemented by a simple shift operation.
Step 405c, determining a second index operator based on the positive and negative of the third index operator.
Based on the above deduction, the positive and negative properties of the third index operator determine the value of the second index operator, and step 405c includes the following steps three to four:
and step three, determining the third index operator as the second index operator under the condition that the third index operator is a non-negative number.
And step four, under the condition that the third index operator is a negative number, determining the sum of the third index operator and the bandwidth sequence number of the target terminal as the second index operator.
As a result of the fact that,thus n b,1 ＝n′ b,1 modN b . And because the third index operator satisfies the relation-N b <n′ b,1 <N b So for N b The modulo operation of (2) can be discussed in terms of cases, simplified as:
thus, in the third index operator n' b,1 In the case of non-negative numbers, the third index operator n' b,1 Determined as a second index operator n b,1 The method comprises the steps of carrying out a first treatment on the surface of the In the third index operator n' b,1 In the case of negative numbers, the third index operator n' b,1 With the target terminal bandwidth sequence number N b The sum is determined as a second index number operator n b,1 。
And step 406, determining the bandwidth index number based on the first index number operator, the second index number operator and the target signal frequency band number corresponding to the target terminal bandwidth sequence number.
Solving for a first index number operator n b,0 And a second index operator n b,1 After the value of (2), the terminal can calculate the bandwidth index number n b Has a value of n b ＝(n b,0 +n b,1 )modN b ,0≤b≤B SRS . Because 0.ltoreq.n b,0 ≤N b And 0.ltoreq.n b,1 ≤N b So 0.ltoreq.n b,0 +n b,1 ≤2N b . At this time, for N b Modulo arithmetic of (1) can be discussed by case-wiseThe way of (2) is simplified to obtain:
step 407, determining a frequency domain position offset value based on the bandwidth index number.
In step 408, a frequency domain starting position is determined based on the frequency domain reference position and the frequency domain position offset value.
Step 409, transmitting the sounding reference signal to the base station according to the frequency domain starting position.
For the specific implementation of step 407 to step 409, reference may be made to step 303 to step 305, and the embodiments of the present application are not described herein again.
In the embodiment of the application, complex division operation is realized by storing the conversion parameters and based on simple operation modes such as multiplication, addition, shift, rounding and the like between the conversion parameters and the divisor. And no matter how the value of the terminal-level configuration parameter is, the terminal can obtain the bandwidth index number by simple iterative calculation through a plurality of groups of target conversion parameters based on the reference iteration parameter, thereby greatly reducing the operand and the calculation complexity. And the terminal can meet the frequency domain initial position calculation under the values of various bandwidth configuration parameters by only storing 10 groups or 13 groups of conversion parameters, and more storage resources are not needed.
Referring to fig. 5, a flowchart of a method for transmitting a probe signal according to another exemplary embodiment of the present application is shown. The embodiment of the application is illustrated by taking the method as an example executed by a baseband chip in the terminal. In case the bandwidth configuration parameter indicates disabling of frequency hopping, the method comprises the steps of:
in step 501, a target conversion parameter is determined based on a first bandwidth configuration parameter issued by the base station, where the first bandwidth configuration parameter is used as a divisor to participate in a division operation in a frequency domain position calculation process, and the target conversion parameter is a parameter used to obtain a division operation result through a non-division operation.
Step 502, determining a first reference iteration operator based on the target conversion parameter and the second bandwidth configuration parameter, wherein the first reference iteration operator is an integer division operator of the frequency domain position index parameter pair detection resource block number.
In step 503, the first reference iteration operator is iterated based on the target transformation parameter, and a first index number operator is determined.
For the specific embodiments of step 501 to step 503, reference may be made to the above steps 401 to 404, and the embodiments of the present application are not described herein again.
Step 504, a bandwidth index number is determined based on the first index number operator.
Since the bandwidth index number n of each layer is in the case of disabling frequency hopping b ＝n b,0 The terminal therefore determines the first index operator as the bandwidth index.
Step 505, determining a frequency domain position offset value based on the bandwidth index number.
Step 506, determining a frequency domain starting position based on the frequency domain reference position and the frequency domain position offset value.
Step 507, transmitting a sounding reference signal to the base station according to the frequency domain starting position.
For the specific embodiments of step 505 to step 507, reference may be made to step 303 to step 305, and the embodiments of the present application are not described herein.
In the embodiment of the application, complex division operation is realized by storing the conversion parameters and based on simple operation modes such as multiplication, addition, shift, rounding and the like between the conversion parameters and the divisor, and the terminal can carry out simple iterative calculation to obtain the bandwidth index number through a plurality of groups of target conversion parameters based on the reference iteration parameters no matter how the value of the terminal-level configuration parameters is taken, and further simplify the calculation formula of the second index number operator based on the parity condition discussion of the parameters, thereby greatly reducing the operation amount and the calculation complexity. And the terminal can meet all bandwidth configuration parameters by only storing 10 groups or 13 groups of conversion parameters, and more storage resources are not needed.
In combination with the above embodiments, the calculation process of the SRS frequency domain starting position may be approximately summarized as the following steps:
(1) Calculating a first index number operator in an iterative manner0≤b≤B SRS 。
In this step, first of all, it can be calculatedThen when b=3, 2,1, sequentially calculate +.>n b,0 ＝q b -q b-1 N b And n is 0,0 =0. When the frequency hopping is forbidden, the bandwidth index number n of each layer b ＝n b,0 Directly jumping to the step (4); and (3) continuing to execute the step (2) when the frequency hopping is enabled. Alternatively, the step may be performed by first performing a second iterative calculationr′ 0 ＝n RRC mod(m SRS,0 /4)＝n RRC -q′ 0 (m SRS,0 4) then sequentially iterating the calculationr′ b ＝r′ b-1 mod(m SRS,b /4)＝r′ b-1 -q′ b (m SRS,b (4) obtaining n b,0 ＝q′ b 。
(2) Calculating a second index number operator n b,1 . When b is more than or equal to 0 and less than or equal to b hop When n is b,1 =0; when b hop +1≤b≤B SRS At this time, the calculation is as follows:
(2.1) iterative calculationLet t hop ＝n SRS Sequentially calculate +.>p b ＝t b-1 -t b N b 。
(2.2) calculating a third index number operator
(2.3) calculating a second index operator based on the sign of the third index operator
(3) Calculating bandwidth index number
(4) Calculating SRS frequency domain starting position
The division operation in the calculation process can be realized by performing non-division operation through the corresponding target conversion parameters.
Fig. 6 is a block diagram of a device for transmitting a probe signal according to an exemplary embodiment of the present application, where the device may implement the method for transmitting a probe signal according to any of the above embodiments by using either hardware, software, or a combination of hardware and software. The device comprises the following structure.
The parameter determining module 601 is configured to determine a target conversion parameter based on a first bandwidth configuration parameter issued by the base station, where the first bandwidth configuration parameter is used as a divisor to participate in a division operation in a frequency domain position calculation process, and the target conversion parameter is a parameter used to obtain a division operation result through a non-division operation;
an offset value determining module 602, configured to determine a frequency domain location offset value based on the target conversion parameter and a second bandwidth configuration parameter issued by the base station, where the frequency domain location offset value characterizes an offset of an actual frequency domain starting position relative to a frequency domain reference position indicated by the base station when the signal is transmitted;
a starting position determining module 603, configured to determine a frequency domain starting position based on the frequency domain reference position and the frequency domain position offset value;
and the signal sending module 604 is configured to send a sounding reference signal to the base station according to the frequency domain starting position.
Optionally, the offset value determining module 602 is further configured to:
determining a bandwidth index number based on the target conversion parameter and the second bandwidth configuration parameter, wherein the bandwidth index number is used for indicating a frequency domain position in a bandwidth tree structure;
the frequency domain position offset value is determined based on the bandwidth index number.
Optionally, the first bandwidth configuration parameter includes a target cell bandwidth sequence number, the second bandwidth configuration parameter includes a target terminal bandwidth sequence number and a frequency domain position index parameter, where the terminal bandwidth sequence number and the cell bandwidth sequence number indicate the number of sounding resource blocks occupied by the sounding reference signal and the number of signal frequency bands together, and the frequency domain position index parameter is used to indicate the frequency domain reference position;
the offset value determining module 602 is further configured to:
determining a reference iteration operator based on the target conversion parameter and the second bandwidth configuration parameter, wherein the reference iteration operator refers to an iteration operator when the terminal bandwidth sequence number is a reference value, the iteration operator is an integer division operator of the frequency domain position index parameter to the number of the detection resource blocks or an integer division operator of a sending opportunity count value to the number of the signal frequency bands, and the sending opportunity count value indicates the transmitted times of the detection reference signal;
and carrying out iterative operation on the reference iterative operator based on the iterative relation among the iterative operators of the terminal bandwidth sequence numbers under different values to obtain the bandwidth index number.
Optionally, the bandwidth configuration parameter indicates that frequency hopping is enabled;
The offset value determining module 602 is further configured to:
determining a first reference iteration operator based on the target conversion parameter and the second bandwidth configuration parameter, wherein the first reference iteration operator is an integer division operator of the frequency domain position index parameter on the number of the detection resource blocks;
determining a second reference iteration operator based on the target conversion parameter and the sending time count value, wherein the second reference iteration operator is an integer division operator of the sending time count value to the signal frequency band number;
performing iterative operation on the first reference iterative operator based on the target conversion parameter, and determining a first index number operator;
performing iterative operation on the second reference iterative operator based on the target conversion parameter to determine a second index number operator;
and determining the bandwidth index number based on the first index number operator, the second index number operator and the target signal frequency band number corresponding to the target terminal bandwidth sequence number.
Optionally, the reference value corresponding to the first reference iteration operator is the maximum value in the terminal bandwidth sequence number value range;
the offset value determining module 602 is further configured to:
generating an ith-1 first iteration operator based on the ith first iteration operator and the target conversion parameter corresponding to the ith terminal bandwidth sequence number, wherein the ith first iteration operator is obtained by performing one round of iterative operation on the first reference iteration operator or the (i+1) th first iteration operator based on the target conversion parameter, and i is a positive integer;
And under the condition that the value of i-1 is consistent with the bandwidth sequence number of the target terminal, determining an ith index operator corresponding to the ith first iteration operator as the first index operator.
Optionally, the reference value corresponding to the first reference iteration operator is the minimum value in the terminal bandwidth sequence number value range;
the offset value determining module 602 is further configured to:
generating an ith+1th first iteration operator based on the ith first iteration operator and the target conversion parameter corresponding to the ith terminal bandwidth sequence number, wherein the ith first iteration operator is obtained by performing one round of iterative operation on the first reference iteration operator or the ith-1th first iteration operator based on the target conversion parameter, and i is a positive integer;
and under the condition that the value of i+1 is consistent with the bandwidth sequence number of the target terminal, determining the (i+1) index number operator corresponding to the (i+1) th first iteration operator as the first index number operator.
Optionally, the offset value determining module 602 is further configured to:
performing iterative operation on the second reference iterative operator to generate a second iterative operator corresponding to the bandwidth sequence number of the target terminal;
determining a third index number operator based on a second iteration operator corresponding to the target terminal bandwidth sequence number, wherein the third index number operator is obtained by combining the second iteration operator corresponding to the target terminal bandwidth sequence number and the target terminal bandwidth sequence number through addition, multiplication, shift and rounding;
And determining the second index operator based on the positive and negative of the third index operator.
Optionally, the offset value determining module 602 is further configured to:
generating an ith+1th second iteration operator based on the ith second iteration operator and the target conversion parameter corresponding to the ith+1th terminal bandwidth serial number, wherein the ith second iteration operator is obtained by performing one-round waiting operation on the second reference iteration operator or the ith-1th second iteration operator based on the target conversion parameter, and i is a positive integer;
and under the condition that the value of i+1 is consistent with the target terminal bandwidth serial number, determining the second iteration operator corresponding to the i+1-th terminal bandwidth serial number as the second iteration operator corresponding to the target terminal bandwidth serial number.
Optionally, the offset value determining module 602 is further configured to:
determining the third index operator as the second index operator in the case that the third index operator is a non-negative number;
and under the condition that the third index operator is a negative number, determining the sum of the third index operator and the target terminal bandwidth serial number as the second index operator.
Optionally, the bandwidth configuration parameter indicates disabling frequency hopping;
The offset value determining module 602 is further configured to:
determining a first reference iteration operator based on the target conversion parameter and the second bandwidth configuration parameter, wherein the first reference iteration operator is an integer division operator of the frequency domain position index parameter on the number of the detection resource blocks;
performing iterative operation on the first reference iterative operator based on the target conversion parameter, and determining a first index number operator;
the bandwidth index number is determined based on the first index number operator.
Optionally, the target conversion parameter is used for obtaining the division operation result through addition operation, multiplication operation and shift operation.
Referring to fig. 7, a block diagram of an apparatus 700 according to an exemplary embodiment of the present application is shown. The apparatus 700 may be an electronic device in which an application program is installed and run, such as a smart phone, a tablet computer, an electronic book, and a portable personal computer, or may be a chip provided in the electronic device. By way of example, the apparatus 700 of the present application may comprise one or more of the following: a processor 710 and a memory 720.
Processor 710 may include one or more processing cores. The processor 710 utilizes various interfaces and lines to connect various portions of the overall apparatus 700, perform various functions of the apparatus 700, and process data by executing or executing instructions, programs, code sets, or instruction sets stored in the memory 720, and invoking data stored in the memory 720. Alternatively, the processor 710 may be implemented in hardware in at least one of digital signal processing (Digital Signal Processing, DSP), field programmable gate array (Field-Programmable Gate Array, FPGA), programmable logic array (Programmable Logic Array, PLA). The processor 710 may include a modem and may further include one or a combination of several of a central processing unit (Central Processing Unit, CPU), a graphics processing unit (Graphics Processing Unit, GPU), and the like. The CPU mainly processes an operating system, a user interface, an application program and the like; the GPU is used for rendering and drawing the content required to be displayed on the screen; the modem is used to handle wireless communications.
The Memory 720 may include a random access Memory (Random Access Memory, RAM) or a Read-Only Memory (ROM). Optionally, the memory 720 includes a non-transitory computer-readable medium (non-transitory computer-readable storage medium). Memory 720 may be used to store instructions, programs, code, sets of codes, or sets of instructions. The memory 720 may include a stored program area and a stored data area, where the stored program area may store instructions for implementing an operating system, which may be an Android system (including a system developed based on the Android system), an IOS system developed by apple corporation (including a system developed based on the IOS system depth), or other systems, instructions for implementing at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing the above-described various method embodiments, and so on. The storage data area may also store data created by the device 700 in use (e.g., phonebook, audio-video data, chat log data), etc.
In addition, those skilled in the art will appreciate that the configuration of the apparatus 700 shown in the above-described figures does not constitute a limitation of the apparatus 700, and that the terminal may include more or less components than illustrated, or may combine certain components, or may have a different arrangement of components. For example, the apparatus 700 further includes a radio frequency circuit, a shooting component, a sensor, an audio circuit, a Wi-Fi component, a power supply, a bluetooth component, and the like, which are not described herein.
Embodiments of the present application also provide a computer readable storage medium storing at least one instruction that is loaded and executed by a processor to implement the method for transmitting a sounding reference signal according to the above embodiments.
According to one aspect of the present application, there is provided a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device performs the transmission method of the sounding reference signal provided in various optional implementations of the above aspect.
Those skilled in the art will appreciate that in one or more of the examples described above, the functions described in the embodiments of the present application may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, these functions may be stored on or transmitted over as one or more instructions or code on a computer-readable storage medium. Computer-readable storage media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
It should be noted that, the information (including but not limited to user equipment information, user personal information, etc.), data (including but not limited to data for analysis, stored data, presented data, etc.), and signals related to the present application are all authorized by the user or are fully authorized by the parties, and the collection, use, and processing of the related data is required to comply with the relevant laws and regulations and standards of the relevant countries and regions. For example, the terminal identification, location information, etc. referred to in the present application are acquired under the condition of sufficient authorization.
The foregoing description of the preferred embodiments of the present application is not intended to limit the application, but rather, the application is to be construed as limited to the appended claims.

Claims (13)

1. A method for transmitting a sounding reference signal, the method being performed by a baseband chip in a terminal, the method comprising:
determining a target conversion parameter based on a first bandwidth configuration parameter issued by a base station, wherein the first bandwidth configuration parameter is used as a divisor to participate in division operation in the frequency domain position calculation process, the first bandwidth configuration parameter comprises a target cell bandwidth serial number, and the target conversion parameter is a parameter used for obtaining a division operation result through multiplication operation, addition operation and shift operation;
Determining a frequency domain position offset value based on the target conversion parameter and a second bandwidth configuration parameter issued by the base station, wherein the second bandwidth configuration parameter comprises a target terminal bandwidth sequence number and a frequency domain position index parameter, the frequency domain position offset value characterizes the offset of an actual frequency domain starting position relative to a frequency domain reference position indicated by the base station when a signal is transmitted, wherein the terminal bandwidth sequence number and a cell bandwidth sequence number jointly indicate the number of detection resource blocks occupied by the detection reference signal and the number of signal frequency bands, and the frequency domain position index parameter is used for indicating the frequency domain reference position;
determining a frequency domain starting position based on the frequency domain reference position and the frequency domain position offset value;
and sending a sounding reference signal to the base station according to the frequency domain starting position.
2. The method of claim 1, wherein the determining the frequency domain location offset value based on the target conversion parameter and the second bandwidth configuration parameter issued by the base station comprises:
determining a bandwidth index number based on the target conversion parameter and the second bandwidth configuration parameter, wherein the bandwidth index number is used for indicating a frequency domain position in a bandwidth tree structure;
The frequency domain position offset value is determined based on the bandwidth index number.
3. The method of claim 2, wherein the determining a bandwidth index number based on the target conversion parameter and the second bandwidth configuration parameter comprises:
determining a reference iteration operator based on the target conversion parameter and the second bandwidth configuration parameter, wherein the reference iteration operator refers to an iteration operator when the terminal bandwidth sequence number is a reference value, the iteration operator is an integer division operator of the frequency domain position index parameter to the number of the detection resource blocks or an integer division operator of a sending opportunity count value to the number of the signal frequency bands, and the sending opportunity count value indicates the transmitted times of the detection reference signal;
and carrying out iterative operation on the reference iterative operator based on the iterative relation among the iterative operators of the terminal bandwidth sequence numbers under different values to obtain the bandwidth index number.
4. A method according to claim 3, wherein the bandwidth configuration parameter indicates that frequency hopping is enabled;
the determining a reference iteration operator based on the target conversion parameter and the second bandwidth configuration parameter includes:
Determining a first reference iteration operator based on the target conversion parameter and the second bandwidth configuration parameter, wherein the first reference iteration operator is an integer division operator of the frequency domain position index parameter on the number of the detection resource blocks;
determining a second reference iteration operator based on the target conversion parameter and the sending time count value, wherein the second reference iteration operator is an integer division operator of the sending time count value to the signal frequency band number;
the iterative operation is carried out on the reference iterative operator based on the iterative relation among the iterative operators of the terminal bandwidth sequence numbers under different values to obtain the bandwidth index number, and the method comprises the following steps:
performing iterative operation on the first reference iterative operator based on the target conversion parameter, and determining a first index number operator;
performing iterative operation on the second reference iterative operator based on the target conversion parameter to determine a second index number operator;
and determining the bandwidth index number based on the first index number operator, the second index number operator and the target signal frequency band number corresponding to the target terminal bandwidth sequence number.
5. The method of claim 4, wherein the reference value corresponding to the first reference iteration operator is a maximum value in a terminal bandwidth sequence number value range;
Performing iterative operation on the first reference iterative operator based on the target transformation parameters to determine a first index number operator, including:
generating an ith-1 first iteration operator based on the ith first iteration operator and the target conversion parameter corresponding to the ith terminal bandwidth sequence number, wherein the ith first iteration operator is obtained by performing one round of iterative operation on the first reference iteration operator or the (i+1) th first iteration operator based on the target conversion parameter, and i is a positive integer;
and under the condition that the value of i-1 is consistent with the bandwidth sequence number of the target terminal, determining an ith index operator corresponding to the ith first iteration operator as the first index operator.
6. The method of claim 4, wherein the reference value corresponding to the first reference iteration operator is a minimum value in a terminal bandwidth sequence number value range;
performing iterative operation on the first reference iterative operator based on the target transformation parameters to determine a first index number operator, including:
generating an ith+1th first iteration operator based on the ith first iteration operator and the target conversion parameter corresponding to the ith terminal bandwidth sequence number, wherein the ith first iteration operator is obtained by performing one round of iterative operation on the first reference iteration operator or the ith-1th first iteration operator based on the target conversion parameter, and i is a positive integer;
And under the condition that the value of i+1 is consistent with the bandwidth sequence number of the target terminal, determining the (i+1) index number operator corresponding to the (i+1) th first iteration operator as the first index number operator.
7. The method of claim 4, wherein iteratively operating the second reference iteration operator based on the target transformation parameters to determine a second index number operator comprises:
performing iterative operation on the second reference iterative operator to generate a second iterative operator corresponding to the bandwidth sequence number of the target terminal;
determining a third index number operator based on a second iteration operator corresponding to the target terminal bandwidth sequence number, wherein the third index number operator is obtained by combining the second iteration operator corresponding to the target terminal bandwidth sequence number and the target terminal bandwidth sequence number through addition, multiplication, shift and rounding;
and determining the second index operator based on the positive and negative of the third index operator.
8. The method of claim 7, wherein the performing an iterative operation on the second reference iteration operator to generate a second iteration operator corresponding to the target terminal bandwidth sequence number comprises:
Generating an ith+1th second iteration operator based on the ith second iteration operator and the target conversion parameter corresponding to the ith+1th terminal bandwidth serial number, wherein the ith second iteration operator is obtained by performing one-round waiting operation on the second reference iteration operator or the ith-1th second iteration operator based on the target conversion parameter, and i is a positive integer;
and under the condition that the value of i+1 is consistent with the target terminal bandwidth serial number, determining the second iteration operator corresponding to the i+1-th terminal bandwidth serial number as the second iteration operator corresponding to the target terminal bandwidth serial number.
9. The method of claim 7, wherein the determining the second index operator based on the sign of the third index operator comprises:
determining the third index operator as the second index operator in the case that the third index operator is a non-negative number;
and under the condition that the third index operator is a negative number, determining the sum of the third index operator and the target terminal bandwidth serial number as the second index operator.
10. The method of claim 3, wherein the bandwidth configuration parameter indicates disabling frequency hopping;
The determining a reference iteration operator based on the target conversion parameter and the second bandwidth configuration parameter includes:
determining a first reference iteration operator based on the target conversion parameter and the second bandwidth configuration parameter, wherein the first reference iteration operator is an integer division operator of the frequency domain position index parameter on the number of the detection resource blocks;
the iterative operation is carried out on the reference iterative operator based on the iterative relation among the iterative operators of the terminal bandwidth sequence numbers under different values to obtain the bandwidth index number, and the method comprises the following steps:
performing iterative operation on the first reference iterative operator based on the target conversion parameter, and determining a first index number operator;
the bandwidth index number is determined based on the first index number operator.
11. A transmission apparatus for a sounding reference signal, the apparatus comprising:
the parameter determining module is used for determining a target conversion parameter based on a first bandwidth configuration parameter issued by the base station, wherein the first bandwidth configuration parameter is used as a divisor to participate in division operation in the frequency domain position calculation process, the first bandwidth configuration parameter comprises a target cell bandwidth serial number, and the target conversion parameter is a parameter used for obtaining a division operation result through multiplication operation, addition operation and shift operation;
The offset value determining module is configured to determine a frequency domain position offset value based on the target conversion parameter and a second bandwidth configuration parameter issued by the base station, where the second bandwidth configuration parameter includes a target terminal bandwidth sequence number and a frequency domain position index parameter, the frequency domain position offset value characterizes an offset of an actual frequency domain starting position relative to a frequency domain reference position indicated by the base station when a signal is sent, where the terminal bandwidth sequence number and a cell bandwidth sequence number indicate together a number of sounding resource blocks occupied by the sounding reference signal and a number of signal frequency bands, and the frequency domain position index parameter is used to indicate the frequency domain reference position;
the starting position determining module is used for determining a frequency domain starting position based on the frequency domain reference position and the frequency domain position offset value;
and the signal transmitting module is used for transmitting a sounding reference signal to the base station according to the frequency domain starting position.
12. An apparatus comprising a processor and a memory; at least one program is stored in the memory, and is loaded and executed by the processor to implement the sounding reference signal transmitting method according to any one of claims 1 to 10.
13. A computer readable storage medium, wherein at least one computer program is stored in the computer readable storage medium, and the computer program is loaded and executed by a processor to implement the method for transmitting the sounding reference signal according to any one of claims 1 to 10.
CN202210844002.3A 2022-07-18 2022-07-18 Method, device, terminal and storage medium for sending sounding reference signal Active CN115276937B (en)

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