CN114584273B - Method, device and terminal for determining resource element utilization rate - Google Patents

Method, device and terminal for determining resource element utilization rate Download PDF

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Publication number
CN114584273B
CN114584273B CN202210185488.4A CN202210185488A CN114584273B CN 114584273 B CN114584273 B CN 114584273B CN 202210185488 A CN202210185488 A CN 202210185488A CN 114584273 B CN114584273 B CN 114584273B
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signal
resource
determining
preset
resource element
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CN114584273A (en
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冯志勇
黄赛
饶洪
张平
张轶凡
张奇勋
尉志青
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Beijing University of Posts and Telecommunications
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Beijing University of Posts and Telecommunications
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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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/10—Interfaces between hierarchically different network devices between terminal device and access point, i.e. wireless air interface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application provides a method, a device and a terminal for determining resource element utilization rate, wherein the method comprises the following steps: acquiring a first signal acquired by an antenna and a receiver, and carrying out transmission identification on the first signal; when the first signal is determined to be an NR signal, acquiring a first resource matrix related to a preset transmission type in the first signal according to a preset segmentation rule; determining a threshold value of each subcarrier according to the CSI-RS in the first signal; and obtaining the resource element utilization rate of the first signal about the preset transmission type according to the threshold value and the first resource matrix. According to the method and the device, the signal is identified, noise influence is prevented, the resource elements are segmented through the preset segmentation rule, influence of the corresponding resource elements of the non-preset transmission type is avoided, accuracy of a final obtained result is guaranteed, multiple threshold values are dynamically set for different subcarriers through the CSI-RS of each half frame, and accuracy and instantaneity in processing are improved.

Description

Method, device and terminal for determining resource element utilization rate
Technical Field
The present invention relates to the field of mobile wireless communications technologies, and in particular, to a method, an apparatus, and a terminal for determining a resource element utilization rate.
Background
With the gradual commercial and deployment of the fifth generation mobile communication technology, various public mobile communication systems occupy a large amount of spectrum resources, and the current situation of spectrum resource shortage is more serious; radio resources are important non-renewable resources, and in order to better realize reasonable allocation and utilization of spectrum resources, efficient consideration needs to be given to the utilization condition of spectrum. The spectrum resource utilization condition of a New air interface (NR) of 5G is necessarily monitored, and for a 5G NR signal, according to a modulation mode of the 5G NR signal, the spectrum occupancy cannot effectively represent the service condition of the signal, and the resource elements of the signal need to be evaluated. However, there is no effective evaluation scheme for evaluating NR signals.
Disclosure of Invention
The technical aim to be achieved by the embodiment of the application is to provide a method, a device and a terminal for determining the utilization rate of resource elements, which are used for solving the problem that the utilization rate of the resource elements of an NR signal cannot be effectively evaluated at present.
In order to solve the above technical problems, an embodiment of the present application provides a method for determining a resource element utilization rate, including:
acquiring a first signal acquired by an antenna and a receiver, and carrying out transmission identification on the first signal;
when the first signal is determined to be an NR signal, acquiring a first resource matrix related to a preset transmission type in the first signal according to a preset segmentation rule;
determining a threshold value of each subcarrier according to a channel state information reference signal (Channel State Information Reference Signal, CSI-RS for short) in the first signal;
and obtaining the resource element utilization rate of the first signal about the preset transmission type according to the threshold value and the first resource matrix.
Specifically, the method as described above, for identifying the first signal, comprises:
performing primary synchronization processing on the first signal, and determining a first position of a primary synchronization signal (Primary Synchronisation Signal, PSS for short) in a time domain;
extracting a synchronization signal/physical broadcast channel signal block (Synchronization Signal and PBCH block, abbreviated SSB) of the first signal according to the first location;
performing secondary synchronization processing on the first signal according to a secondary synchronization signal (Secondary Synchronisation Signal, abbreviated as SSS) in the SSB to complete synchronization of a special demodulation reference signal (Dedicated demodulation reference signals, abbreviated as DM-RS) of a physical broadcast channel (Physical broadcast channel, abbreviated as PBCH);
extracting PBCH according to DM-RS and decoding;
when the decoding is successful, the first signal is determined to be an NR signal.
Preferably, the method as described above, after determining the first signal to be an NR signal, the method further comprises:
the first signal is spectrally modified according to the primary PSS and SSS.
Specifically, the method as described above, obtaining a first resource matrix related to a preset transmission type in a first signal according to a preset segmentation rule, includes:
determining a frequency domain range of the first signal according to a main information block (Master Indication Block, abbreviated as MIB) in the first signal, the CSI-RS and a frequency domain segmentation rule in a preset segmentation rule;
extracting orthogonal frequency division multiplexing symbols (Orthogonal Frequency Division Multiplex, abbreviated OFDM) in the first signal;
demodulating the OFDM to obtain a second resource matrix;
dividing the second resource matrix according to a time domain dividing rule in a preset dividing rule to obtain a first resource matrix, wherein the time domain dividing rule comprises: and determining the transmission type corresponding to each resource element according to the resource position and/or the resource number.
Further, according to the method described above, the second resource matrix is segmented according to a time domain segmentation rule in a preset segmentation rule, so as to obtain a first resource matrix, which includes:
when the preset transmission type is downlink transmission, determining the resource elements of the first preset number in the second resource matrix as resource elements corresponding to the downlink transmission.
Specifically, the method for obtaining the resource element utilization rate of the first signal about the preset transmission type according to the threshold value and the first resource matrix includes:
determining an effective value of a target resource element in the first resource matrix according to the threshold value, wherein the target resource element is any resource element in the first resource matrix;
and obtaining the average value of all the effective values, and determining the average value as the resource element utilization rate of the first signal relative to the preset transmission type.
Preferably, the method as described above, determining the effective value of the target resource element in the first resource matrix according to the threshold value includes:
when the target resource element has data transmission, determining that the effective value of the target resource element is 1;
when there is no data transmission on the target resource element, the effective value of the target resource element is determined to be 0.
Another embodiment of the present application further provides a control device, including:
the first processing module is used for acquiring a first signal acquired by the antenna and the receiver and carrying out transmission identification on the first signal;
the second processing module is used for acquiring a first resource matrix related to a preset transmission type in the first signal according to a preset segmentation rule when the first signal is determined to be an NR signal;
the third processing module is used for determining the threshold value of each subcarrier according to the CSI-RS in the first signal;
and the fourth processing module is used for obtaining the resource element utilization rate of the first signal about the preset transmission type according to the threshold value and the first resource matrix.
Specifically, the control device as described above, the first processing module, includes:
the first processing unit is used for carrying out primary synchronization processing on the first signal and determining a first position of the PSS in the time domain;
a second processing unit for extracting SSB of the first signal according to the first position;
the third processing unit is used for carrying out auxiliary synchronization processing on the first signal according to the SSS in the SSB to complete the synchronization of the DM-RS of the PBCH;
a fourth processing unit for extracting PBCH according to DM-RS and decoding;
and a fifth processing unit for determining that the first signal is an NR signal when the decoding is successful.
Preferably, the control device as described above further includes:
and a fifth processing module, configured to perform spectrum modification on the first signal according to the primary PSS and SSS.
Specifically, the control device, the second processing module, as described above, includes:
a sixth processing unit, configured to determine a frequency domain range in which the first signal is located according to the MIB and the CSI-RS in the first signal and a frequency domain segmentation rule in a preset segmentation rule;
a seventh processing unit, configured to extract OFDM in the first signal;
an eighth processing unit, configured to demodulate OFDM to obtain a second resource matrix;
a ninth processing unit, configured to segment the second resource matrix according to a time domain segmentation rule in a preset segmentation rule, to obtain a first resource matrix, where the time domain segmentation rule includes: and determining the transmission type corresponding to each resource element according to the resource position and/or the resource number.
Further, in the control device as described above, the ninth processing unit specifically includes:
when the preset transmission type is downlink transmission, determining the resource elements of the first preset number in the second resource matrix as resource elements corresponding to the downlink transmission.
Specifically, the control device as described above, the fourth processing module, includes:
a tenth processing unit, configured to determine an effective value of a target resource element in the first resource matrix according to the threshold value, where the target resource element is any resource element in the first resource matrix;
and the eleventh processing unit is used for acquiring the average value of all the effective values and determining the average value as the resource element utilization rate of the first signal relative to the preset transmission type.
Preferably, the control device as described above, the tenth processing unit specifically includes:
when the target resource element has data transmission, determining that the effective value of the target resource element is 1;
when there is no data transmission on the target resource element, the effective value of the target resource element is determined to be 0.
Still another embodiment of the present application provides a terminal, including: an antenna, a receiver, a display device and a control device as described above;
the control device is connected with the receiver and the display device respectively and is connected with the antenna through the receiver.
Yet another embodiment of the present application also provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method of determining resource element utilization as described above.
Compared with the prior art, the method, the device and the terminal for determining the utilization rate of the resource elements have the following beneficial effects:
according to the method and the device, the signals are identified, noise influence is prevented, the resource elements in the first signals are segmented through the preset segmentation rule, influence of the corresponding resource elements of the non-preset transmission type is avoided, accuracy of a final result is guaranteed, multiple threshold values are dynamically set for different subcarriers through the CSI-RS of each half frame, and accuracy and instantaneity in processing are improved.
Drawings
FIG. 1 is a flow chart of a method for determining resource element utilization according to the present application;
FIG. 2 is a second flow chart of a method for determining resource element utilization according to the present application;
FIG. 3 is a third flow chart of a method for determining resource element utilization according to the present application;
FIG. 4 is a flow chart of a method for determining resource element utilization of the present application;
FIG. 5 is a schematic structural view of the control device of the present application;
fig. 6 is a schematic structural diagram of a terminal of the present application;
fig. 7 is a schematic diagram of resource element division in the present application.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present application more apparent, the following detailed description will be given with reference to the accompanying drawings and the specific embodiments. In the following description, specific details such as specific configurations and components are provided merely to facilitate a thorough understanding of embodiments of the present application. It will therefore be apparent to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the application. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In various embodiments of the present application, it should be understood that the sequence numbers of the following processes do not mean the order of execution, and the order of execution of the processes should be determined by the functions and internal logic thereof, and should not constitute any limitation on the implementation process of the embodiments of the present application.
It should be understood that the term "and/or" is merely an association relationship describing the associated object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
In the examples provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B may be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may also determine B from a and/or other information.
Referring to fig. 1, a preferred embodiment of the present application provides a method for determining resource element utilization, including:
step S101, acquiring a first signal acquired by an antenna and a receiver, and carrying out transmission identification on the first signal;
step S102, when the first signal is determined to be an NR signal, a first resource matrix of the first signal about a preset transmission type is obtained according to a preset segmentation rule;
step S103, determining a threshold value of each subcarrier according to the CSI-RS in the first signal;
step S104, obtaining the resource element utilization rate of the first signal about the preset transmission type according to the threshold value and the first resource matrix.
In a specific embodiment of the present application, taking an evaluation of resource element utilization rate of an NR signal as an example, first, an antenna and a receiver are acquired to obtain a first signal, and the first signal is transmitted and identified, and whether the first signal is a signal to be evaluated, that is, an NR signal is determined, when the first signal is determined to be an NR signal, it is determined that the first signal needs to be evaluated, and because the NR signal includes, but is not limited to, uplink transmission and downlink transmission, a first resource matrix related to a preset transmission type that needs to be specifically evaluated is acquired from the first signal according to a preset segmentation rule; meanwhile, a threshold value of each subcarrier is determined for a channel state information reference signal (CSI-RS) in the first signal, wherein the calculation formula is preferably as follows: s (n) =rate RS (n); s (n) is a threshold value corresponding to the nth subcarrier; the rate is a predetermined threshold coefficient, and in a preferred embodiment, the rate is set to 0.75; RS (n) is the energy of CSI-RS. Further, according to the obtained first resource matrix and the threshold value of each subcarrier, whether each resource element in the first resource matrix is occupied or not is judged, so that the occupation condition of the resource element in the first resource matrix, namely the utilization rate of the resource element of the first signal about the preset transmission type, can be obtained.
In summary, the method and the device are beneficial to preventing noise influence by identifying the signals, segmenting the resource elements in the first signals by the preset segmentation rule, avoiding the influence of the corresponding resource elements of the non-preset transmission type, ensuring the accuracy of the final result, dynamically setting a plurality of threshold values for different subcarriers by the CSI-RS of each half frame, and improving the accuracy and instantaneity during processing.
It should be noted that, when the above-mentioned resource element utilization rate related to the preset transmission type is obtained, the resource element utilization rate may be sent to a display device to display, where the display mode is preferably graphic display by percentage display, specifically may be browsing in graphic form, and outputting the result in table form.
Referring to fig. 2, specifically, the method described above, for identifying the first signal includes:
step S201, performing primary synchronization processing on a first signal, and determining a first position of the PSS in a time domain;
step S202, extracting SSB of a first signal according to a first position;
step S203, performing auxiliary synchronization processing on the first signal according to SSS in SSB to complete synchronization of DM-RS of PBCH;
step S204, extracting PBCH according to DM-RS and decoding;
in step S205, when the decoding is successful, the first signal is determined to be an NR signal.
In an embodiment of the present application, when identifying the first signal, first, a primary synchronization process needs to be performed on the first signal, to determine a first position of the primary synchronization signal in a time domain, specifically, to perform convolution calculation on the first signal and a locally generated primary synchronization signal sequence, where a convolution calculation process is preferably as follows:
wherein r (n) is a sampled baseband signal sequence; s (n) is a locally generated PSS sequence;
d is the offset between the local reference signal and the received signal;
* To take conjugation;
N sum for the total length of the acquired signal;
n is the number of points of the OFDM symbol.
It should be noted that, the PSS sequence is 127-bit binary phase shift keying (Binary Phase Shift Keying, abbreviated as BPSK) modulated m sequence, and the m sequence is generated according to the intra-group identifierThe value is determined and the relationship is generated as follows:
dpss(n)＝1-2x(m)
0≤n≤127
wherein the x (m) sequence initialization is as follows:
x(i+7)＝(x(i+4)+x(i))mod2
[x(6)x(5)x(4)x(3)x(2)x(1)x(0)]＝[1110110]
wherein mod is a remainder function; due toThree values of 0,1,2 are taken, so three PSS sequences are generated, and therefore, after the convolution calculation is completed, a specific position, i.e., a first position, of the PSS in the time domain is determined according to the maximum value of R (d).
After the first position of the PSS is determined, accurately extracting SSB of the first signal according to the position of the PSS, wherein the SSB occupies 4 symbols in a time domain and occupies 240 subcarriers in a frequency domain; and then, SSB is processed in a secondary synchronization mode according to the secondary synchronization signal SSS, so that the synchronization of DM-RS can be completed, PBCH can be further extracted and decoded according to DM-RS, and if decoding is successful, the first signal can be determined to be NR signal.
Preferably, before extracting and decoding the PBCH, the SSB number is determined according to convolution calculation of the synchronized DM-RS and the locally generated DM-RS so as to accurately extract the PBCH; the convolution calculation process is as follows:
wherein s (n) is a DM-RS sequence generated locally, comparing the values of R (i), and determining the value of i when the SSB number is R (i) takes the maximum value.
It should be noted that, the specific process of extracting and decoding PBCH may be: after receiving data input of PBCH, performing channel estimation, determining the position of PBCH, extracting the PBCH, performing de-modulation scrambling processing through quadrature phase shift keying (Quadrature Phase Shift Keying, QPSK for short), performing de-rate matching and de-interleaving to obtain original data, decoding through Polar code decoding, and performing cyclic redundancy check (Cyclic Redundancy Check, CRC for short) and decoding to obtain basic information of MIB and NR signals, wherein the MIB comprises the following components: broadcast control channel (Broadcast Control Channel, abbreviated BCCH) -BCH-information indication, system frame number, subcarrier spacing set parameters, SSB carrier offset, reference signal location, physical downlink control channel (Physical Downlink Control Channel, abbreviated PDCCH) set, whether cell is barred and frequency reselection, etc. Basic information includes, but is not limited to: cell number, cyclic Prefix (CP) type, SSB number, etc.
Preferably, the method as described above, after determining the first signal to be an NR signal, the method further comprises:
and performing spectrum correction on the first signal according to the PSS and the SSS.
In another preferred embodiment of the present application, after determining that the first signal is an NR signal, to ensure accuracy of subsequent evaluation, the first signal is further subjected to spectrum modification according to PSS and SSS, where an algorithm of spectrum modification is preferably:
wherein θ SSS For SSS sequence phase difference, θ PSS For PSS sequences, delta T is the symbol time difference between SSS and PSS sequences, i.e. the time difference of two OFDM symbols.
Wherein r is SSS (n) is a received SSS sequence;
S SSS (n) is a locally generated SSS sequence;
r PSS (n) is the received PSS sequence;
S PSS (n) is a locally generated PSS sequence.
Referring to fig. 3, specifically, the method as described above, for obtaining a first resource matrix related to a preset transmission type in a first signal according to a preset segmentation rule, includes:
step S301, determining a frequency domain range of a first signal according to MIB, CSI-RS in the first signal and a frequency domain segmentation rule in a preset segmentation rule;
step S302, extracting OFDM in a first signal;
step S303, demodulating the OFDM to obtain a second resource matrix;
step S304, dividing the second resource matrix according to a time domain division rule in a preset division rule to obtain a first resource matrix, wherein the time domain division rule comprises: and determining the transmission type corresponding to each resource element according to the resource position and/or the resource number.
In a specific embodiment of the present application, when the first resource matrix is acquired, the time domain and the frequency domain are respectively segmented based on the first signal, where when the frequency domain is segmented, a starting position of the frequency domain of the first signal is determined according to the MIB, and a frequency domain width of the first signal is determined according to the CSI-RS, so that a frequency domain range corresponding to the first signal can be segmented from the frequency domain, and preferably, the frequency domain width of the segmented frequency domain range is greater than the frequency domain width of the first signal, so as to ensure that the frequency domain of the first signal is accurately acquired.
In addition, when the division in the time domain is performed, the OFDM in the first signal is first extracted, and then the OFDM is demodulated, so that an overall resource matrix formed by each resource element in the OFDM, that is, a second resource matrix, is obtained, wherein the demodulation process of the OFDM is not described herein again; and then dividing the second resource matrix according to a preset dividing rule to obtain the resource matrix corresponding to each transmission type, and determining the resource matrix corresponding to the preset transmission type as the first resource matrix. By dividing the resource elements, the influence of the resource elements of other transmission types on the evaluation of the resource elements of the preset transmission type can be reduced.
The above-described sequence of time domain segmentation and frequency domain segmentation may be adjusted to advance time domain segmentation and then time domain segmentation, or segmentation may be performed simultaneously.
Further, according to the method described above, the second resource matrix is segmented according to a time domain segmentation rule in a preset segmentation rule, so as to obtain a first resource matrix, which includes:
when the preset transmission type is downlink transmission, determining the resource elements of the first preset number in the second resource matrix as resource elements corresponding to the downlink transmission.
In a specific embodiment of the present application, since the numbers of the resource elements used for downlink transmission and uplink transmission in the OFDM are sequentially arranged, the resource element division can be simply performed by a sorting manner, the number, and the like, in this embodiment, the OFDM includes 140 resource elements, and the first 104 resource elements are used for downlink transmission, and the last 36 resource elements are used for uplink transmission, for example, it can be determined that the first 140 resource elements in the second resource matrix are resource elements corresponding to downlink transmission, as shown in fig. 7.
Referring to fig. 4, specifically, the method, as described above, according to the threshold value and the first resource matrix, obtains a resource element utilization rate of the first signal with respect to a preset transmission type, including:
step S401, determining the effective value of a target resource element in the first resource matrix according to the threshold value, wherein the target resource element is any resource element in the first resource matrix;
step S402, obtaining an average value of all the effective values, and determining the average value as the resource element utilization rate of the first signal with respect to the preset transmission type.
Preferably, the method as described above, determining the effective value of the target resource in the first resource matrix according to the threshold value includes:
when the target resource element has data transmission, determining that the effective value of the target resource element is 1;
when there is no data transmission on the target resource element, the effective value of the target resource element is determined to be 0.
In another specific embodiment of the present application, after determining the threshold value of the first resource matrix and each subcarrier, the validity of the resource elements in the first resource matrix may be determined according to the threshold value, and the resource elements are represented in a quantized form, specifically, when there is data transmission on the target resource element, it is determined that the target resource element is occupied, and at this time, it is determined that the valid value is 1; similarly, when no data is transmitted on the target resource element, the effective value of the target resource element can be determined to be 0; and obtaining the average value of the first signal to obtain the resource element utilization rate of the first signal about the preset transmission type. By quantifying whether the resource elements are occupied, the processing efficiency is improved.
Referring to fig. 5, another embodiment of the present application further provides a control device, including:
the first processing module 501 is configured to acquire a first signal acquired by the antenna and the receiver, and perform transmission identification on the first signal;
the second processing module 502 is configured to obtain, according to a preset segmentation rule, a first resource matrix related to a preset transmission type in the first signal when the first signal is determined to be an NR signal;
a third processing module 503, configured to determine a threshold value of each subcarrier according to the CSI-RS in the first signal;
a fourth processing module 504, configured to obtain, according to the threshold value and the first resource matrix, a resource element utilization rate of the first signal with respect to a preset transmission type.
Specifically, the control device as described above, the first processing module, includes:
the first processing unit is used for carrying out primary synchronization processing on the first signal and determining a first position of the PSS in the time domain;
a second processing unit for extracting SSB of the first signal according to the first position;
the third processing unit is used for carrying out auxiliary synchronization processing on the first signal according to the SSS in the SSB to complete the synchronization of the DM-RS of the PBCH;
a fourth processing unit for extracting PBCH according to DM-RS and decoding;
and a fifth processing unit for determining that the first signal is an NR signal when the decoding is successful.
Preferably, the control device as described above further includes:
and a fifth processing module, configured to perform spectrum modification on the first signal according to the primary PSS and SSS.
Specifically, the control device, the second processing module, as described above, includes:
a sixth processing unit, configured to determine a frequency domain range in which the first signal is located according to the MIB and the CSI-RS in the first signal and a frequency domain segmentation rule in a preset segmentation rule
A seventh processing unit, configured to extract OFDM in the first signal;
an eighth processing unit, configured to demodulate OFDM to obtain a second resource matrix;
a ninth processing unit, configured to segment the second resource matrix according to a time domain segmentation rule in a preset segmentation rule, to obtain a first resource matrix, where the time domain segmentation rule includes: and determining the transmission type corresponding to each resource according to the resource position and/or the resource number.
Further, in the control device as described above, the ninth processing unit specifically includes:
when the preset transmission type is downlink transmission, determining the resources of the first preset quantity in the second resource matrix as resources corresponding to the downlink transmission.
Specifically, the control device as described above, the fourth processing module, includes:
a tenth processing unit, configured to determine an effective value of a target resource in the first resource matrix according to the threshold value, where the target resource is any resource in the first resource matrix;
and the eleventh processing unit is used for acquiring the average value of all the effective values and determining the average value as the resource element utilization rate of the first signal relative to the preset transmission type.
Preferably, the control device as described above, the tenth processing unit specifically includes:
when the target resource has data transmission, determining that the effective value of the target resource is 1;
when there is no data transmission on the target resource, the effective value of the target resource is determined to be 0.
Referring to fig. 6, still another embodiment of the present application further provides a terminal, including an antenna 601, a receiver 602, a display device 603, and a control device 604 as described above;
wherein the control device 604 is connected to the receiver 602 and the display device 603, respectively, and is connected to the antenna 601 via the receiver 602.
Yet another embodiment of the present application also provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method of determining resource element utilization as described above.
The embodiment of the control device of the present application is a control device corresponding to the embodiment of the method for determining the resource element utilization rate, and all implementation means in the embodiment of the method are applicable to the embodiment of the control device, so that the same technical effects can be achieved.
Furthermore, the present application may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
It is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprise," "include," or any other variation thereof, are intended to cover a non-exclusive inclusion.
While the foregoing is directed to the preferred embodiments of the present application, it should be noted that modifications and adaptations to those embodiments may occur to one skilled in the art and that such modifications and adaptations are intended to be comprehended within the scope of the present application without departing from the principles set forth herein.

Claims (9)

1. A method of determining resource element utilization, comprising: acquiring a first signal acquired by an antenna and a receiver, and carrying out transmission identification on the first signal;
when the first signal is determined to be a new air interface NR signal, a first resource matrix about a preset transmission type in the first signal is obtained according to a preset segmentation rule;
determining a threshold value of each subcarrier according to a channel state information reference signal (CSI-RS) in the first signal;
obtaining the resource element utilization rate of the first signal about a preset transmission type according to the threshold value and the first resource matrix;
the obtaining a first resource matrix related to a preset transmission type in the first signal according to a preset segmentation rule includes:
determining a frequency domain range of the first signal according to a master information block MIB in the first signal, the CSI-RS and a frequency domain segmentation rule in the preset segmentation rule;
extracting an orthogonal frequency division multiplexing symbol (OFDM) in the first signal;
demodulating the OFDM to obtain a second resource matrix;
dividing the second resource matrix according to a time domain division rule in the preset division rule to obtain the first resource matrix, wherein the time domain division rule comprises: and determining the transmission type corresponding to each resource element according to the resource position and/or the resource number.
2. The method of claim 1, wherein the identifying the first signal comprises:
performing primary synchronization processing on the first signal, and determining a first position of a primary synchronization signal PSS in a time domain;
extracting a synchronization signal/physical broadcast channel signal block SSB of the first signal according to the first position;
performing secondary synchronization processing on the first signal according to a secondary synchronization signal SSS in the SSB to complete synchronization of a special demodulation reference signal DM-RS of a physical broadcast channel PBCH;
extracting the PBCH according to the DM-RS and decoding;
and when decoding is successful, determining the first signal as the NR signal.
3. The method of claim 1, wherein after determining that the first signal is the NR signal, the method further comprises:
and carrying out frequency spectrum correction on the first signal according to the PSS and the SSS.
4. The method of claim 1, wherein the dividing the second resource matrix according to the time domain division rule in the preset division rule to obtain the first resource matrix comprises:
and when the preset transmission type is downlink transmission, determining the resource elements of the first preset number in the second resource matrix as resource elements corresponding to the downlink transmission.
5. The method of claim 1, wherein the obtaining the resource element utilization of the first signal with respect to the preset transmission type according to the threshold value and the first resource matrix comprises:
determining an effective value of a target resource element in the first resource matrix according to the threshold value, wherein the target resource element is any resource element in the first resource matrix;
and obtaining the average value of all the effective values, and determining the average value as the resource element utilization rate of the first signal about the preset transmission type.
6. The method of claim 5, wherein the determining the effective value of the target resource element in the first resource matrix based on the threshold value comprises:
when the target resource element has data transmission, determining that the effective value of the target resource element is 1;
and when no data is transmitted on the target resource element, determining that the effective value of the target resource element is 0.
7. A control apparatus, characterized by comprising:
the first processing module is used for acquiring a first signal acquired by the antenna and the receiver and carrying out transmission identification on the first signal;
the second processing module is used for acquiring a first resource matrix related to a preset transmission type in the first signal according to a preset segmentation rule when the first signal is determined to be a new air interface NR signal;
a third processing module, configured to determine a threshold value of each subcarrier according to a CSI-RS in the first signal;
a fourth processing module, configured to obtain, according to the threshold value and the first resource matrix, a resource element utilization rate of the first signal with respect to a preset transmission type;
wherein the second processing module comprises:
a sixth processing unit, configured to determine a frequency domain range in which the first signal is located according to the MIB and the CSI-RS in the first signal and a frequency domain segmentation rule in a preset segmentation rule;
a seventh processing unit, configured to extract OFDM in the first signal;
an eighth processing unit, configured to demodulate OFDM to obtain a second resource matrix;
a ninth processing unit, configured to segment the second resource matrix according to a time domain segmentation rule in a preset segmentation rule, to obtain a first resource matrix, where the time domain segmentation rule includes: and determining the transmission type corresponding to each resource element according to the resource position and/or the resource number.
8. A terminal, comprising: an antenna, a receiver, a display device and a control device according to claim 7;
the control device is respectively connected with the receiver and the display device and is connected with the antenna through the receiver.
9. A computer readable storage medium, on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of the method of determining resource element utilization according to any of claims 1 to 6.
CN202210185488.4A 2022-02-28 2022-02-28 Method, device and terminal for determining resource element utilization rate Active CN114584273B (en)

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