CN112218316A - Frequency point configuration calculation method and device for 5GNR cell and storage medium - Google Patents

Frequency point configuration calculation method and device for 5GNR cell and storage medium Download PDF

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CN112218316A
CN112218316A CN202011081433.6A CN202011081433A CN112218316A CN 112218316 A CN112218316 A CN 112218316A CN 202011081433 A CN202011081433 A CN 202011081433A CN 112218316 A CN112218316 A CN 112218316A
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frequency
ssb
point
absolute
frequency point
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张小强
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Guangdong Communications and Networks Institute
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Guangdong Communications and Networks Institute
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • 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
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
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Abstract

The invention discloses a frequency point configuration calculation method of a 5GNR cell, which comprises the following steps: after a 3GPP protocol of a target cell is obtained, a reference point is generated according to the specified content of the 3GPP protocol; selecting an undetermined SSB frequency point meeting the frequency grid alignment requirement of an NR absolute frequency channel number according to the relation that the sum of the absolute frequency of the reference point, the frequency offset and the subcarrier frequency is equal to the absolute frequency of the SSB frequency point; judging whether the SSB frequency point to be determined conforms to the frequency band range of the global synchronization channel number or not; if yes, judging the SSB frequency point to be determined as an available SSB frequency point; and if not, reselecting the SSB frequency point which accords with the frequency band range of the global synchronization channel number by adjusting the frequency offset. The invention provides a frequency point configuration calculation method, a device and a storage medium of a 5GNR cell, which can quickly search available SSB frequency points meeting the frequency point configuration of 3GPP protocol specifications.

Description

Frequency point configuration calculation method and device for 5GNR cell and storage medium
Technical Field
The present invention relates to the field of wireless communication technologies, and in particular, to a method and an apparatus for calculating frequency point configuration of a 5GNR cell, and a storage medium.
Background
Currently, 5G technology is rapidly developing and beginning to build 5G base stations on a large scale. Compared with LTE, the 5G technology has further innovation and performance improvement. The SSB information is important information to be acquired in the first step of UE accessing the cell, and is more flexible than LTE, and can be moved and changed within the range of frequency bandwidth. Therefore, higher requirements are provided for the frequency point configuration of the 5G cell, the flexibility of the frequency point configuration is increased, the complexity of calculation is increased, and how to plan the frequency point configuration of the 5G cell is the first step of building a 5G communication network and is also a key step.
Disclosure of Invention
In view of the above technical problems, the present invention provides a method, an apparatus, and a storage medium for calculating frequency point configuration of a 5GNR cell, which can quickly search for an available SSB frequency point that satisfies the frequency point configuration of the 3GPP protocol specification. The technical scheme is as follows:
in a first aspect, an embodiment of the present invention provides a method for calculating a frequency point configuration of a 5GNR cell, including:
after a 3GPP protocol of a target cell is obtained, a reference point is generated according to the specified content of the 3GPP protocol;
selecting an undetermined SSB frequency point meeting the frequency grid alignment requirement of an NR absolute frequency channel number according to the relation that the sum of the absolute frequency of the reference point, the frequency offset and the subcarrier frequency is equal to the absolute frequency of the SSB frequency point;
judging whether the SSB frequency point to be determined conforms to the frequency band range of the global synchronization channel number or not;
if yes, judging the SSB frequency point to be determined as an available SSB frequency point; and if not, reselecting the SSB frequency point which accords with the frequency band range of the global synchronization channel number by adjusting the frequency offset.
In a first possible implementation manner of the first aspect of the present invention, the selecting, according to a relationship that an addition of an absolute frequency of the reference point, the frequency offset, and the subcarrier frequency is equal to an absolute frequency of an SSB frequency point, an to-be-determined SSB frequency point that meets a requirement of aligning a frequency grid of an NR absolute frequency channel number is specifically:
the formula for calculating the absolute frequency of the SSB frequency point obtained by analyzing the 3GPP protocol is as follows:
absoluteFrequencyPointA+offsetToPointA×SCS×Nsc+ssbSubcarrierOffset×SCS＝absoluteFrequencySSB-Nrb×Nsc×subCarrierSpacingSSB
wherein absoluteFrequencyPointA represents the absolute frequency of the reference point a; offsetttopointa represents the offset of the SSB frequency point relative to the resource block of the reference point A; SSB _ subanticrierffe represents the carrier offset of the SSB frequency point with respect to the reference point a; SCS represents the subcarrier spacing of the common resource; nsc represents the number of subcarriers; nrb represents the number of resource blocks; the absolute frequency of the SSB frequency point is represented by the absolute frequency of the SSB frequency point; subCarrier spacing SSB indicates the subcarrier spacing of the SSB frequency bins.
In a second possible implementation manner of the first aspect of the present invention, after obtaining available SSB frequency points, the method further includes:
and on the premise of conforming to the frequency band range of the global synchronization channel number, a new available SSB frequency point and a frequency point set consisting of a plurality of available SSB frequency points are obtained by increasing the step length on the basis of the available SSB frequency points.
In a third possible implementation manner of the first aspect of the present invention, the method for calculating frequency point configuration of a 5GNR cell further includes a manner of calculating a step size of an SSB frequency point:
determining a step constant according to the absolute frequency value range of the SSB frequency point;
and calculating the least common multiple among the step constant, the product of the subcarrier interval and the subcarrier number of the common resource block and the product of the subcarrier interval and the subcarrier number of the synchronous signal block, wherein the least common multiple is the step length of the SSB frequency point.
In a fourth possible implementation manner of the first aspect of the present invention, the determining whether the frequency point of the to-be-determined SSB matches a frequency band range of a global synchronization channel number includes:
inquiring a global synchronization channel number parameter table of a global frequency grid according to the absolute frequency value range of the SSB frequency point to obtain the function relation between the absolute frequency of the SSB point and the frequency band of the global synchronization channel number;
and calculating the global synchronization channel number of the SSB frequency point to be determined according to the absolute frequency of the SSB frequency point to be determined and the functional relation.
In a fifth possible implementation manner of the first aspect of the present invention, the method for calculating frequency point configuration of a 5GNR cell further includes an estimation manner of an absolute frequency value range of SSB frequency points:
acquiring a frequency band number selected by an operator, and determining a channel number range according to the frequency band number;
and according to the channel number range, matching the absolute frequency value range of the corresponding SSB frequency point from the NR absolute radio frequency channel number parameter table.
In a sixth possible implementation manner of the first aspect of the present invention, matching, according to the channel number range, a corresponding absolute frequency value range of an SSB frequency point from an NR absolute radio frequency channel number parameter table, further includes:
searching the corresponding grid step length, frequency offset and channel number offset from the NR absolute radio frequency channel number parameter list according to the channel number range;
the global frequency grid is multiplied by the difference between the frequency channel number and the frequency channel number offset, plus the absolute frequency offset equals the absolute frequency value.
In a sixth possible implementation manner of the first aspect of the present invention, the method for calculating frequency point configuration of a 5GNR cell further includes an obtaining manner of subcarrier spacing of the SSB frequency point:
and inquiring an available synchronous signal grid entry parameter table according to the frequency band number to obtain the subcarrier interval of the corresponding SSB frequency point.
In a second aspect, an embodiment of the present invention provides a frequency point configuration calculation apparatus for a 5GNR cell, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, where the processor implements the above-mentioned frequency point configuration calculation method for the 5GNR cell when executing the computer program.
In a third aspect, an embodiment of the present invention provides a storage medium for a frequency point configuration calculation method for a 5GNR cell, where the storage medium for the frequency point configuration calculation method for the 5GNR cell is used to store one or more computer programs, and the one or more computer programs include program codes, and when the computer programs run on a computer, the program codes are used to execute the frequency point configuration calculation method for the 5GNR cell.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
the invention provides a frequency point configuration calculation method, a device and a storage medium of a 5GNR cell, and provides an implementation scheme for calculating related parameters of a frequency reference point A (absolute frequency Point) and an SSB frequency point (absolute frequency Ssb) of the 5GNR cell based on related regulations in a 3GPP protocol, namely, a reference point is generated according to the regulated contents of the 3GPP protocol, and the SSB frequency point meeting the requirement of frequency grid alignment of an NR absolute frequency channel number is selected according to the relation that the sum of the absolute frequency of the reference point, the frequency offset and the subcarrier frequency is equal to the absolute frequency of the SSB frequency point; and the SSB frequency point which meets the frequency grid alignment requirement of a Global Synchronization Channel Number (GSCN) and an NR absolute frequency channel number (ARFCN) is quickly searched in a given frequency band by adjusting the frequency offset, so that the 5G cell frequency point which meets the 3GPP protocol specification is set.
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Fig. 1 is a flowchart of steps of a method for calculating a frequency point configuration of a 5GNR cell in an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides an exemplary embodiment of a method for calculating frequency point allocation of a 5GNR cell, including the steps of:
s101, after a 3GPP protocol of a target cell is obtained, a reference point is generated according to the specified content of the 3GPP protocol;
s102, selecting an undetermined SSB frequency point meeting the frequency grid alignment requirement of an NR absolute frequency channel number according to the relation that the sum of the absolute frequency of the reference point, the frequency offset and the subcarrier frequency is equal to the absolute frequency of the SSB frequency point;
s103, judging whether the SSB frequency point to be determined conforms to the frequency band range of the global synchronization channel number or not;
s104, if yes, judging the SSB frequency point to be determined as an available SSB frequency point; and if not, reselecting the SSB frequency point which accords with the frequency band range of the global synchronization channel number by adjusting the frequency offset.
In this embodiment, the selecting, according to the relationship that the sum of the absolute frequency of the reference point and the frequency offset and the subcarrier frequency is equal to the absolute frequency of the SSB frequency point, the to-be-determined SSB frequency point that meets the requirement of aligning the frequency grid of the NR absolute frequency channel number specifically includes:
the formula for calculating the absolute frequency of the SSB frequency point obtained by analyzing the 3GPP protocol is as follows:
absoluteFrequencyPointA+offsetToPointA×SCS×Nsc+ssbSubcarrierOffset×SCS＝absoluteFrequencySSB-Nrb×Nsc×subCarrierSpacingSSB
wherein absoluteFrequencyPointA represents the absolute frequency of the reference point a; offsetttopointa represents the offset of the SSB frequency point relative to the resource block of the reference point A; SSB _ subanticrierffe represents the carrier offset of the SSB frequency point with respect to the reference point a; SCS represents the subcarrier spacing of the common resource; nsc represents the number of subcarriers; nrb represents the number of resource blocks; the absolute frequency of the SSB frequency point is represented by the absolute frequency of the SSB frequency point; subCarrier spacing SSB indicates the subcarrier spacing of the SSB frequency bins.
In this embodiment, the method for calculating frequency point configuration of a 5GNR cell, after obtaining an available SSB frequency point, further includes:
and on the premise of conforming to the frequency band range of the global synchronization channel number, a new available SSB frequency point and a frequency point set consisting of a plurality of available SSB frequency points are obtained by increasing the step length on the basis of the available SSB frequency points.
Specifically, the step length is increased on the basis of the available SSB frequency point, and is expressed by the following formula:
absoluteFrequencySSB_n＝absoluteFrequencySSB+SSB_Step×N(N＝1,2..n)
wherein, absoluteFrequencySSB _ n represents the absolute frequency of the SSB frequency point of number n; the absolutefrequencySSB represents an absolute frequency reference value of an SSB frequency point; SSB _ Step represents the least common multiple Step size;
it should be noted that the frequency point set further includes parameters such as absoluteFrequencySSB, absoluteFrequencyPointA, offsetToPointA, and GSCN; each group corresponds to the parameters of absoluteFrequencySSB, absoluteFrequencyPointA, offsetToPointA and GSCN one by one.
The scheme provides a preferred embodiment, and the frequency point configuration calculation method for the 5GNR cell further includes a calculation mode of the step size of the SSB frequency point:
determining a step constant according to the absolute frequency value range of the SSB frequency point;
and calculating the least common multiple among the step length constant, the product of the subcarrier interval and the subcarrier number of the common resource block and the product of the subcarrier interval and the subcarrier number of the SSB frequency point, wherein the least common multiple is the step length of the SSB frequency point.
In this embodiment, the calculating the least common multiple among the step constant, the product of the subcarrier spacing and the subcarrier number of the common resource block, and the product of the subcarrier spacing and the subcarrier number of the SSB frequency point specifically includes:
the minimum common multiple Step length of the SSB frequency point is SSB _ Step;
when the absolute frequency range is 0-3000 MHz: SSB _ Step ═ 1200kHz, SCS × Nsc, Nsc × subbcarriersspacinssb ] by least common multiple;
when the absolute frequency range is 3000-: SSB _ Step ═ 1.44MHz, SCS × Nsc, Nsc × subcorrierspacinssb ] by least common multiple;
when the absolute frequency range is 24250-100000 MHz: SSB _ Step ═ 17.28MHz, SCS × Nsc, Nsc × subcorrierspacinssb ] by least common multiple;
the SCS represents the subcarrier interval of the common resource block, the Nsc represents the subcarrier number of each resource block of the SSB frequency point, and the subCrierSpacinSSB represents the subcarrier interval of the SSB frequency point.
The scheme provides a preferred embodiment, and the frequency point configuration calculation method for the 5GNR cell further includes an estimation mode of an absolute frequency value range of an SSB frequency point:
acquiring a frequency band number selected by an operator, and determining a channel number range according to the frequency band number;
and according to the channel number range, matching the absolute frequency value range of the corresponding SSB frequency point from the NR absolute radio frequency channel number parameter table.
In this embodiment, the specific implementation of obtaining the frequency band number selected by the operator and determining the channel number range according to the frequency band number may determine the channel number range by querying the following table:
application Specifications for NR Absolute frequency channel number for each Low frequency Bandwidth in Table 1-FR1
Figure BDA0002716039080000071
Figure BDA0002716039080000081
Application Specifications for NR Absolute frequency channel number for each high frequency Bandwidth in Table 2-FR2
Figure BDA0002716039080000091
The NR absolute radio frequency channel number parameter table is as follows:
TABLE 3-NR-ARFCN (NR Absolute radio frequency channel number) parameter of Global frequency grid
Figure BDA0002716039080000092
From a table look-up, when the absolute frequency range is 0-3000 MHz: FREF-off is 0MHz, Δ FGlobal is 5kHz, NREF-off is 0;
when the absolute frequency range is 3000-: FREF-off is 3000MHz, Δ FGlobal is 15kHz, NREF-off is 600000;
when the absolute frequency range is 24250-100000 MHz: FREF-off is 24250.08MHz, Δ FGlobal is 60kHz, NREF-off is 2016667;
in this embodiment, matching the corresponding range of absolute frequency values of SSB frequency points from the NR absolute radio frequency channel number parameter table according to the channel number range further includes:
searching the corresponding grid step length, frequency offset and channel number offset from the NR absolute radio frequency channel number parameter list according to the channel number range;
the global frequency grid is multiplied by the difference between the frequency channel number and the frequency channel number offset, plus the absolute frequency offset equals the absolute frequency value.
The present invention provides a preferred embodiment, and the method for calculating frequency point configuration of a 5GNR cell, where the determining whether the frequency point of the SSB to be determined matches the frequency band range of the global synchronization channel number includes:
inquiring a global synchronization channel number parameter table of a global frequency grid according to the absolute frequency value range to obtain a functional relation between the absolute frequency of the SSB point and the frequency band of the global synchronization channel number;
and calculating the global synchronization channel number of the SSB frequency point to be determined according to the absolute frequency of the SSB frequency point to be determined and the functional relation.
The global synchronization channel number parameter table of the global frequency grid is as follows:
TABLE 4 GSCN (Global synchronization channel number) parameter for Global frequency grid
Figure BDA0002716039080000101
Figure BDA0002716039080000111
The functional relation can be obtained by looking up a table:
when the absolute frequency range is 0-3000 MHz: absoluteFrequencySSB ═ N × 1200kHz + M × 50 kHz;
when the absolute frequency range is 3000-: absoluteFrequencySSB 3000MHz + N1.44 MHz;
when the absolute frequency range is 24250-100000 MHz: absoluteFrequencySSB 24250.08MHz + N17.28 MHz;
in the embodiment, the frequency band basic value range of the global synchronization channel number can be obtained by inquiring the global synchronization channel number parameter table of the global frequency grid; and if the frequency band of the global synchronization channel number conforms to the frequency band basic value range, judging that the calculation result of the frequency band of the global synchronization channel number is correct.
The present scheme provides a preferred embodiment, and the frequency point configuration calculation method for the 5GNR cell further includes an obtaining manner of the subcarrier spacing of the SSB frequency point:
and inquiring an available synchronous signal grid entry parameter table according to the frequency band number to obtain the subcarrier interval of the corresponding SSB frequency point.
The available synchronization signal trellis entry parameter table is as follows:
TABLE 5 available SS (synchronization Signal) grid entry (FR1)
Figure BDA0002716039080000112
Figure BDA0002716039080000121
Figure BDA0002716039080000131
TABLE 6 available SS (synchronization Signal) grid entry (FR2)
Figure BDA0002716039080000132
It should be noted that Nrb represents half of the number of RBs occupied by SSB; nsc denotes the number of subcarriers of an SSB single RB; and the value of the SCS is 15kHz if an FR1 table is inquired when the subcarrier interval of the SSB offset is calculated, and 60kHz if an FR2 table is inquired.
Note that the RB is defined as 12 subcarriers consecutive in the frequency domain in 3GPP 38.211. The 3GPP 38.211 original text is as follows:
4.4.4.1General
A resource block is defined as NSC RB＝12consecutive subcarriers in the frequency domain.
RB, Resource Block, is a common term in 5G protocols.
The present disclosure also provides an exemplary embodiment, an apparatus for calculating a frequency point configuration of a 5GNR cell, including a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, where the processor implements the method for calculating the frequency point configuration of the 5GNR cell as described above when executing the computer program.
The frequency point configuration calculating device of the 5GNR cell according to this embodiment may be a user equipment, an access terminal, a remote terminal, a mobile device, a wireless communication device, or the like, and may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with a wireless communication function, a computing device, or other processing devices connected to a wireless modem, a vehicle-mounted device, or a wearable device, which is not limited in this embodiment of the present application.
The present invention provides an exemplary embodiment, a storage medium of a frequency point configuration calculation method for a 5GNR cell, where the storage medium of the frequency point configuration calculation method for the 5GNR cell is used to store one or more computer programs, and the one or more computer programs include program codes, and when the computer programs run on a computer, the program codes are used to execute the frequency point configuration calculation method for the 5GNR cell.
The computer readable media of the embodiments of the present application may be computer readable signal media or computer readable storage media or any combination of the two. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable read-only memory (CDROM). Additionally, the computer-readable storage medium may even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware that is related to instructions of a program, and the program may be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode.
The present solution also provides a specific embodiment to illustrate the present solution.
The technical solutions of the above embodiments can be applied to various communication systems, for example: a fifth Generation mobile communication system (5th Generation, 5G) or a New Radio system (New Radio, NR), and various multi-mode or single-mode communication base station devices including 5 GNR. The specific implementation is as follows:
the first step, selecting a frequency band number n78, according to a lookup table 1 with the frequency band number n78, taking 30kHz as a subcarrier interval, and taking a channel number range NREF range 620000-653332;
second, from NREF range 620000- -653332, look-up Table 3, we obtain:
the absolute frequency offset FREF-Offs is 3000MHz,
the global frequency grid Δ FGlobal is 15kHz,
frequency channel number offset NREF-off 600000
The global frequency grid is multiplied by the difference between the frequency channel number and the frequency channel number offset, and the absolute frequency offset is added to the absolute frequency value to obtain the following calculation relation:
FREF＝3000MHz+0.015MHz(NREF–600000)
the NREF range can be calculated as the range of absolute frequency values FREF: 3300 MHz-3799.98 MHz is the range of the frequency point of the downlink bandwidth;
thirdly, according to the FREF range of 3300 MHz-3799.98 MHz, look-up table 4, the following can be obtained:
absoluteFrequencySSB＝3000MHz+N*1.44MHz
GSCN＝7499+N
fourthly, according to the inquiry table 5 with the frequency band number n78, the following results are obtained:
the subcarrier interval subArrierSpacinGSB of the SSB frequency point is 30 kHz;
GSCN range and step length: 7711- <1> -8051
Fifth, SSB _ Step is calculated. According to the FREF range 3300 MHz-3799.98 MHz, 3000-24250MHz is met, SSB _ Step [1.44MHz, SCS × Nsc, Nsc × subCrierSpacinSSB ] takes the least common multiple, therefore:
SSB _ Step ═ 1.44MHz,15kHz × 12,12 × 30kHz, given as the least common multiple, 1.44MHz
Sixthly, calculating the formula:
absoluteFrequencyPointA+offsetToPointA×SCS×Nsc+ssbSubcarrieroffset×SCS＝absoluteFrequencySSB-Nrb×Nsc×subCarrierSpacingSSB
and obtaining a calculation result:
absoluteFrequencyPointA＝3500.4MHz，
offsetToPointA＝24，
ssb-SubcarrierOffset＝0，
absoluteFrequencySSB＝3500.4MHz+24×15KHz×12+0×15KHz+10×12×30kHz＝3508.32MHz
and seventhly, checking and calculating the SSB frequency point:
GSCN＝7499+(absoluteFrequencySSB-3000MHz)/1.44MHz＝7499+353＝7852
GSCN meets the requirements of 7711-8051
And eighthly, obtaining a group of frequency point parameter sets:
absoluteFrequencyPointA＝3500.4MHz，
offsetToPointA＝24，
ssb-SubcarrierOffset＝0，
absoluteFrequencySSB＝3508.32MHz，
GSCN＝7852
and step nine, increasing step length on the basis of the available SSB frequency points, wherein the step length is expressed by a formula as follows:
absoluteFrequencySSB_n＝absoluteFrequencySSB+SSB_Step×N(N＝1,2..n)
the configuration of multiple SSB frequency points can be obtained quickly, as shown in table 7 below:
TABLE 7 frequency point parameter set calculated in the example
N absoluteFrequencySSB absoluteFrequencyPointA offsetToPointA GSCN
1 3509.76 3500.4 32 7853
2 3511.2 3500.4 40 7854
3 3512.64 3500.4 48 7855
4 3514.08 3500.4 56 7856
5 3515.52 3500.4 64 7857
6 3516.96 3500.4 72 7858
7 3518.4 3500.4 80 7859
8 3519.84 3500.4 88 7860
9 3521.28 3500.4 96 7861
10 3522.72 3500.4 104 7862
11 3524.16 3500.4 112 7863
The method for using the frequency point parameter set in an extended mode includes but is not limited to the following aspects: the frequency point planning of the same-frequency adjacent cells can quickly select a plurality of groups of SSB frequency points with non-overlapping SSB blocks in the frequency point set, and reduce the broadcast channel interference of the same-frequency adjacent cells. If the frequency point parameters such as N1, 4,7,10,13 are used as the frequency point planning parameter set of the adjacent cells, the SSBs of the adjacent cells can be ensured not to overlap with each other, the interference of the broadcast channel of the adjacent cells can be eliminated, and the performance of the whole system is further improved.
The invention provides a frequency point configuration calculation method, a device and a storage medium of a 5GNR cell, and provides an implementation scheme for calculating related parameters of a frequency reference point A (absolute frequency Point) and an SSB frequency point (absolute frequency Ssb) of the 5GNR cell based on related regulations in a 3GPP protocol, namely, a reference point is generated according to the regulated contents of the 3GPP protocol, and the SSB frequency point meeting the requirement of frequency grid alignment of an NR absolute frequency channel number is selected according to the relation that the sum of the absolute frequency of the reference point, the frequency offset and the subcarrier frequency is equal to the absolute frequency of the SSB frequency point; and the SSB frequency point which meets the frequency grid alignment requirement of a Global Synchronization Channel Number (GSCN) and an NR absolute frequency channel number (ARFCN) is quickly searched in a given frequency band by adjusting the frequency offset, so that the 5G cell frequency point which meets the 3GPP protocol specification is set.
In addition, according to the scheme, the SSB frequency points are searched by using a least common multiple method, once an available SSB frequency point is determined, the step length obtained by calculation with the least common multiple can be quickly calculated, and a series of available frequency point setting sets which meet the frequency grid alignment requirements of Global Synchronization Channel Numbers (GSCN) and NR absolute frequency channel numbers (ARFCN) are calculated, so that the method is simple and quick, and the efficiency of searching the SSB frequency points is improved.
The calculated frequency point parameter set can be used for frequency point planning of same-frequency adjacent cells, namely, a plurality of groups of SSB frequency points with non-overlapping SSB blocks are quickly selected in the frequency point set, so that the broadcast channel interference of the same-frequency adjacent cells is reduced, the SSBs of the adjacent cells are ensured not to be overlapped, the broadcast channel interference of the adjacent cells is eliminated, and the performance of the whole system is improved.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.

Claims (10)

1. A frequency point configuration calculation method for a 5GNR cell is characterized by comprising the following steps:
after a 3GPP protocol of a target cell is obtained, a reference point is generated according to the specified content of the 3GPP protocol;
selecting an undetermined SSB frequency point meeting the frequency grid alignment requirement of an NR absolute frequency channel number according to the relation that the sum of the absolute frequency of the reference point, the frequency offset and the subcarrier frequency is equal to the absolute frequency of the SSB frequency point;
judging whether the SSB frequency point to be determined conforms to the frequency band range of the global synchronization channel number or not;
if yes, judging the SSB frequency point to be determined as an available SSB frequency point; and if not, reselecting the SSB frequency point which accords with the frequency band range of the global synchronization channel number by adjusting the frequency offset.
2. The method according to claim 1, wherein the frequency point configuration calculation method for the 5GNR cell is characterized in that the undetermined SSB frequency point satisfying the requirement of frequency grid alignment of the NR absolute frequency channel number is selected according to the relationship that the sum of the absolute frequency of the reference point and the frequency offset and the subcarrier frequency is equal to the absolute frequency of the SSB frequency point, and specifically:
the formula for calculating the absolute frequency of the SSB frequency point obtained by analyzing the 3GPP protocol is as follows:
absoluteFrequencyPointA+offsetToPointA×SCS×Nsc+ssbsubcarrierOffset×SCS＝absoluteFrequencySSB-Nrb×Nsc×subCarrierSpacingSSB
wherein absoluteFrequencyPointA represents the absolute frequency of the reference point a; offsetttopointa represents the offset of the SSB frequency point relative to the resource block of the reference point A; SSB _ subanticrierffe represents the carrier offset of the SSB frequency point with respect to the reference point a; SCS represents the subcarrier spacing of the common resource; nsc represents the number of subcarriers; nrb represents the number of resource blocks; the absolute frequency of the SSB frequency point is represented by the absolute frequency of the SSB frequency point; subCarrier spacing SSB indicates the subcarrier spacing of the SSB frequency bins.
3. The method for calculating frequency point configuration of a 5GNR cell according to claim 1, wherein after obtaining available SSB frequency points, further comprising:
and on the premise of conforming to the frequency band range of the global synchronization channel number, a new available SSB frequency point and a frequency point set consisting of a plurality of available SSB frequency points are obtained by increasing the step length on the basis of the available SSB frequency points.
4. The method for calculating frequency point allocation of a 5GNR cell according to claim 3, further comprising a calculation mode of step size of SSB frequency points:
determining a step constant according to the absolute frequency value range of the SSB frequency point;
and calculating the least common multiple among the step constant, the product of the subcarrier interval and the subcarrier number of the common resource block and the product of the subcarrier interval and the subcarrier number of the synchronous signal block, wherein the least common multiple is the step length of the SSB frequency point.
5. The method for calculating frequency point configuration of a 5GNR cell according to claim 1, wherein the determining whether the SSB frequency point to be determined matches the frequency band range of the global synchronization channel number comprises:
inquiring a global synchronization channel number parameter table of a global frequency grid according to the absolute frequency value range of the SSB frequency point to obtain the function relation between the absolute frequency of the SSB point and the frequency band of the global synchronization channel number;
and calculating the global synchronization channel number of the SSB frequency point to be determined according to the absolute frequency of the SSB frequency point to be determined and the functional relation.
6. The method for calculating frequency bin allocation of a 5GNR cell according to claim 4 or 5, further comprising an estimation manner of the range of absolute frequency values of SSB frequency bins:
acquiring a frequency band number selected by an operator, and determining a channel number range according to the frequency band number;
and according to the channel number range, matching the absolute frequency value range of the corresponding SSB frequency point from the NR absolute radio frequency channel number parameter table.
7. The method of claim 6, wherein the frequency bin allocation calculation method for a 5GNR cell matches the corresponding range of absolute frequency values of SSB frequency bins from the NR absolute radio frequency channel number parameter table according to the channel number range, further comprising:
searching the corresponding grid step length, frequency offset and channel number offset from the NR absolute radio frequency channel number parameter list according to the channel number range;
the global frequency grid is multiplied by the difference between the frequency channel number and the frequency channel number offset, plus the absolute frequency offset equals the absolute frequency value.
8. The method for calculating frequency point configuration of 5GNR cell according to claim 2, further comprising a manner of obtaining subcarrier spacing of the SSB frequency points:
and inquiring an available synchronous signal grid entry parameter table according to the frequency band number to obtain the subcarrier interval of the corresponding SSB frequency point.
9. A frequency bin allocation calculation apparatus for a 5GNR cell, comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein the processor implements the frequency bin allocation calculation method for a 5GNR cell according to any one of claims 1 to 8 when executing the computer program.
10. A storage medium for a method for calculating a frequency bin allocation for a 5GNR cell, wherein the storage medium for the method for calculating a frequency bin allocation for a 5GNR cell is configured to store one or more computer programs, and wherein the one or more computer programs comprise program code for performing the method for calculating a frequency bin allocation for a 5GNR cell according to any of the preceding claims 1 to 8 when the computer programs are run on a computer.
CN202011081433.6A 2020-10-09 2020-10-09 Frequency point configuration calculation method and device for 5GNR cell and storage medium Pending CN112218316A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023197763A1 (en) * 2022-04-15 2023-10-19 华为技术有限公司 Communication method and apparatus

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109152041A (en) * 2017-06-16 2019-01-04 华为技术有限公司 Method, terminal device and the network equipment of information transmission
WO2019066575A1 (en) * 2017-09-28 2019-04-04 엘지전자 주식회사 Method and apparatus for transmitting or receiving wireless signal in wireless communication system
CN109587799A (en) * 2017-09-29 2019-04-05 华为技术有限公司 A kind of information transferring method and device
US20190222368A1 (en) * 2017-06-15 2019-07-18 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Method and device for transmitting synchronization signal blocks
US20190223124A1 (en) * 2017-10-27 2019-07-18 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Wireless communication method and device
CN110034891A (en) * 2018-01-12 2019-07-19 电信科学技术研究院有限公司 A kind of system information configuration method and device
US20190230550A1 (en) * 2018-04-02 2019-07-25 Intel Corporation Measurement objects in a new radio (nr) system
CN110149293A (en) * 2018-02-12 2019-08-20 维沃移动通信有限公司 A kind of OFDM baseband signal generation method and device
US20190306765A1 (en) * 2018-04-02 2019-10-03 Comcast Cable Communications, Llc Beam Failure Recovery
CN110447204A (en) * 2017-03-24 2019-11-12 瑞典爱立信有限公司 Channel grid and number
CN110445596A (en) * 2016-10-10 2019-11-12 华为技术有限公司 Sending method, method of reseptance and the device of synchronization signal
CN110495131A (en) * 2018-02-21 2019-11-22 联发科技股份有限公司 Synchronization signal block grid shifts in mobile communication
CN110784844A (en) * 2018-07-31 2020-02-11 维沃移动通信有限公司 Signal transmission method and communication device
CN111435891A (en) * 2019-01-11 2020-07-21 华为技术有限公司 Communication method and device

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110445596A (en) * 2016-10-10 2019-11-12 华为技术有限公司 Sending method, method of reseptance and the device of synchronization signal
CN110447204A (en) * 2017-03-24 2019-11-12 瑞典爱立信有限公司 Channel grid and number
US20190222368A1 (en) * 2017-06-15 2019-07-18 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Method and device for transmitting synchronization signal blocks
CN109152041A (en) * 2017-06-16 2019-01-04 华为技术有限公司 Method, terminal device and the network equipment of information transmission
WO2019066575A1 (en) * 2017-09-28 2019-04-04 엘지전자 주식회사 Method and apparatus for transmitting or receiving wireless signal in wireless communication system
CN109587799A (en) * 2017-09-29 2019-04-05 华为技术有限公司 A kind of information transferring method and device
US20190223124A1 (en) * 2017-10-27 2019-07-18 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Wireless communication method and device
CN110034891A (en) * 2018-01-12 2019-07-19 电信科学技术研究院有限公司 A kind of system information configuration method and device
CN110149293A (en) * 2018-02-12 2019-08-20 维沃移动通信有限公司 A kind of OFDM baseband signal generation method and device
CN110495131A (en) * 2018-02-21 2019-11-22 联发科技股份有限公司 Synchronization signal block grid shifts in mobile communication
US20190230550A1 (en) * 2018-04-02 2019-07-25 Intel Corporation Measurement objects in a new radio (nr) system
US20190306765A1 (en) * 2018-04-02 2019-10-03 Comcast Cable Communications, Llc Beam Failure Recovery
CN110784844A (en) * 2018-07-31 2020-02-11 维沃移动通信有限公司 Signal transmission method and communication device
CN111435891A (en) * 2019-01-11 2020-07-21 华为技术有限公司 Communication method and device

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
""R4-1904255 (R16 NR-U) SSB raster of NR-U"", 3GPP TSG_RAN\\WG4_RADIO *
""R4-1904255 (R16 NR-U) SSB raster of NR-U"", 3GPP TSG_RAN\\WG4_RADIO, 2 April 2019 (2019-04-02) *
CABLELABS: "R4-2003462 "Study of DSS in band 48/n48 channel raster"", 3GPP TSG_RAN\\WG4_RADIO, no. 4, 11 April 2020 (2020-04-11), pages 2 *
CABLELABS: "R4-2003462 "Study of DSS in band 48/n48 channel raster"", 3GPP TSG_RAN\\WG4_RADIO, no. 4, pages 2 *
何振华;颜文燕;: "NR上下行同步过程研究", 通信技术, no. 11, 10 November 2019 (2019-11-10) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023197763A1 (en) * 2022-04-15 2023-10-19 华为技术有限公司 Communication method and apparatus

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