CN114554575A

CN114554575A - IFFT/FFT point number determining method, device and storage medium

Info

Publication number: CN114554575A
Application number: CN202011326054.9A
Authority: CN
Inventors: 卜妍; 邓伟; 王桂珍
Original assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Current assignee: China Mobile Communications Group Co Ltd; China Mobile Communications Ltd Research Institute
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2022-05-27

Abstract

The invention discloses an IFFT/FFT point number determining method, a device and a storage medium, wherein the method comprises the following steps: scheduling terminals in a cell in a target BWP set, and determining a target bandwidth corresponding to the target BWP set; the target BWP set includes at least one BWP; and determining the IFFT/FFT point number corresponding to the target bandwidth based on the preset point number corresponding relation.

Description

IFFT/FFT point number determining method, device and storage medium

Technical Field

The present invention relates to the wireless field, and in particular, to a method, an apparatus, and a storage medium for determining IFFT/FFT points.

Background

Energy conservation and consumption reduction are always subjects of long-term attention and research in the communication industry, and the fifth generation mobile communication technology (5G) network brings mass data explosion and simultaneously faces the challenge of high energy consumption. The existing scheme reduces the energy consumption of the 5G base station through new materials, new processes, new chips, and other hardware technologies and software technologies such as deep dormancy, intelligent shutdown, and the like. The deep sleep means that only the most basic interface circuit is reserved to work by closing part of radio frequency and digital paths when no service exists or the load is light at night, so that the aim of reducing the average power consumption is fulfilled. The intelligent shut-off finger scheduler schedules data to a designated symbol according to the service load condition, and turns off the power amplifier power supply in the rest symbol time without effective information transmission, thereby achieving the purpose of energy conservation.

The physical layer processing is a main component of the operation of the base station, wherein Fast Fourier Transform (FFT) processing/Inverse Fast Fourier Transform (IFFT) processing is a main module of the physical layer, and when a 5G large-scale antenna base station is implemented, the number of IFFT/FFT points is large, multiple channels are provided, the amount of operation is large, a large amount of processing resources are consumed, and corresponding energy consumption is generated at the same time. In the prior art, an IFFT/FFT point number scheme is fixed according to the system bandwidth, that is, when the load of the base station becomes light, the IFFT/FFT point number cannot be dynamically adjusted, and under the condition that the system bandwidth is not changed, the IFFT/FFT point number is always calculated according to the maximum IFFT/FFT point number, which consumes large resources and energy.

Disclosure of Invention

In view of the above, the main objective of the present invention is to provide an IFFT/FFT point determining method, apparatus and storage medium.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

the embodiment of the invention provides an IFFT/FFT point number determining method, which comprises the following steps:

scheduling terminals in a cell in a target BWP set, and determining a target bandwidth corresponding to the target BWP set; the target BWP set includes at least one BWP;

and determining the IFFT/FFT point number corresponding to the target bandwidth based on the preset point number corresponding relation.

In the above solution, before scheduling the terminals in the cell into the target BWP set, the method includes:

detecting a load status of the cell;

when the load state is determined to meet the preset load requirement, determining to schedule the terminals in the cell into a target BWP set;

the load state meets the preset load requirement and represents that the load of the corresponding cell is lower than a preset threshold value.

In the foregoing solution, the determining a target bandwidth corresponding to the target BWP set includes:

determining a bandwidth of a BWP included in the target BWP set as the target bandwidth, corresponding to the target BWP set including one BWP;

and determining the sum of the bandwidths of the at least two connected BWPs as the target bandwidth, wherein the target bandwidth corresponds to the target BWP set comprising at least two connected BWPs.

In the above scheme, the preset point number correspondence includes: the corresponding relation between the bandwidth and the IFFT/FFT point number;

the determining the IFFT/FFT point number corresponding to the target bandwidth based on the preset point number corresponding relation comprises the following steps:

and inquiring the preset point corresponding relation according to the target bandwidth, and determining the IFFT/FFT point corresponding to the target bandwidth.

In the foregoing solution, the method further includes:

detecting a centralized scheduling state;

when the centralized scheduling state is determined to be an opening state, determining that the centralized scheduling function is available; the centralized scheduling function represents a function of scheduling terminals in a cell to a target BWP set.

In the above scheme, the method further comprises:

receiving a switch state instruction from network management equipment;

and adjusting the centralized scheduling state according to the switch state instruction.

The embodiment of the invention provides an IFFT/FFT point number determining device, which comprises:

a first processing module, configured to schedule a terminal in a cell in a target BWP set, and determine a target bandwidth corresponding to the target BWP set; the target BWP set includes at least one BWP;

and the second processing module is used for determining the IFFT/FFT point number corresponding to the target bandwidth based on the preset point number corresponding relation.

In the foregoing solution, the first processing module is further configured to detect a load state of the cell;

In the foregoing solution, the first processing module is configured to determine, as the target bandwidth, a bandwidth of a BWP included in the target BWP set, where the target BWP set includes one BWP;

In the above scheme, the preset point number correspondence includes: the corresponding relation between the bandwidth and the IFFT/FFT points;

the second processing module is configured to query the preset point corresponding relationship according to the target bandwidth, and determine an IFFT/FFT point corresponding to the target bandwidth.

In the above scheme, the first processing module is further configured to detect a centralized scheduling state; when the centralized scheduling state is determined to be an opening state, determining that the centralized scheduling function is available; the centralized scheduling function represents a function of scheduling terminals in a cell to a target BWP set.

In the above scheme, the first processing module is further configured to receive a switch state instruction from the network management device; and adjusting the centralized scheduling state according to the switch state instruction.

The embodiment of the invention provides an IFFT/FFT point number determining device, which comprises a memory, a processor and a computer program which is stored on the memory and can be run on the processor, wherein the processor realizes the steps of the IFFT/FFT point number determining method when executing the program.

An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the IFFT/FFT point number determination method described in any one of the above.

The embodiment of the invention provides a method, a device and a storage medium for determining IFFT/FFT point number, wherein the method comprises the following steps: scheduling terminals in a cell in a target Bandwidth Part (BWP) set, and determining a target Bandwidth corresponding to the target BWP set; the target BWP set includes at least one BWP; determining the IFFT/FFT point number corresponding to the target bandwidth based on a preset point number corresponding relation; therefore, the IFFT/FFT point number of the physical layer can be dynamically adjusted to reduce the processing amount of the physical layer, thereby saving energy consumption.

Drawings

Fig. 1 is a schematic flow chart of a method for determining IFFT/FFT point number according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a TTI configuration parameter according to an embodiment of the present invention;

fig. 3 is a schematic flow chart of another IFFT/FFT point number determination method according to the embodiment of the present invention;

fig. 4 is a schematic structural diagram of an IFFT/FFT point number determining apparatus according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of another IFFT/FFT point number determination apparatus according to an embodiment of the present invention.

Detailed Description

The method provided by the embodiment of the invention schedules the terminal in the cell in a target BWP set, and determines the target bandwidth corresponding to the target BWP set; the target BWP set includes at least one BWP; and determining the IFFT/FFT point number corresponding to the target bandwidth based on the preset point number corresponding relation.

The present invention will be described in further detail with reference to examples.

Fig. 1 is a schematic flow chart of a method for determining IFFT/FFT point number according to an embodiment of the present invention; as shown in fig. 1, the method is applied to a base station, such as an enhanced base station (eNB), a 5G base station (gNB), or an NB, and includes:

step 101, scheduling a terminal in a cell in a target BWP set, and determining a target bandwidth corresponding to the target BWP set; the target BWP set includes at least one BWP;

and 102, determining the IFFT/FFT point number corresponding to the target bandwidth based on a preset point number corresponding relation.

In some embodiments, before the scheduling of the terminals in the cell into the target BWP set, the method includes:

detecting a load status of the cell;

when the load state is determined to meet the preset load requirement, terminals in the cell are determined to be scheduled in a target BWP set;

Specifically, the preset threshold may be preset by a developer. Determining whether the terminals in the cell can be scheduled in the target BWP set according to the load status. In practice, when the load is determined to be lower than the preset threshold, it is considered that all terminals in the cell can be scheduled in the target BWP set. Wherein the load being below a preset threshold may be embodied by various features, such as: the number of users connected to the current cell is small (for example, specifically smaller than a preset user threshold), the total traffic is not large (for example, specifically smaller than a preset traffic threshold), the number of users and the total traffic are far lower than the peak value requirement (for example, the number of users is smaller than a preset user threshold, and the traffic is smaller than a preset traffic threshold), and the like.

In practical application, when the network management device of the base station controls the base station to turn on the energy saving function of the physical layer (here, the energy saving function refers to turning on the centralized scheduling function, that is, the base station can perform the function of centrally scheduling the terminals of the cell to the target BWP set), the scheduler of the base station (which can be understood as a functional module for the base station to perform the centralized scheduling) schedules all the terminals in the cell in the same BWP (for example, 20MHz) or several connected BWPs according to the current traffic load condition under the condition of light load, so as to reduce the bandwidth occupied by the signal, and at this time, the physical layer of the base station (which can be understood as another functional module for the base station to perform the centralized scheduling, specifically, a module for determining the IFFT/FFT point number) can configure the point number according to the effective bandwidth when performing the IFFT/FFT processing, without performing operation according to the maximum point number of the system bandwidth of the cell.

In some embodiments, the determining the target bandwidth corresponding to the target BWP set includes:

Here, the target BWP set includes at least one BWP, and specifically includes two cases:

the first condition is as follows: the target BWP set includes one BWP; that is, all terminals of a cell are scheduled in one BWP in a centralized manner;

case two: the target BWP set comprises at least two connected BWPs; that is, all terminals of a cell are centrally scheduled within at least two connected BWPs.

For case two, different bandwidths are corresponded due to different BWPs; after it is determined that the terminals in the cell are centrally scheduled in at least two connected BWPs, the bandwidth of each BWP in the at least two connected BWPs may be determined, the bandwidths of each BWP in the at least two connected BWPs are added to obtain the sum of the bandwidths, and the sum of the bandwidths is used as the target bandwidth. Then, based on the preset point corresponding relation, the IFFT/FFT point corresponding to the sum of the bandwidths can be determined.

In some embodiments, the method further comprises:

detecting a centralized scheduling state;

Here, the network management device of the base station may control whether the base station starts centralized scheduling, and further, the base station may detect the centralized scheduling state before performing step 101 and step 102, and when it is determined that the centralized scheduling state is the start state, it is determined that the function of starting BWP centralized scheduling of the cell terminal is started, and then BWP centralized scheduling of the cell terminal may be performed, that is, the operation of scheduling the terminal in the cell in the target BWP set may be performed.

In practical application, the network management device may be a device for managing a base station, and is located outside the base station, and the default state of the switch may be automatically set through a program of the network management device; in addition, the operation and maintenance personnel of the base station can manually configure the switch state.

Based on this, in some embodiments, the method further comprises:

receiving a switch state instruction from network management equipment;

In some embodiments, the preset point number correspondence includes: the corresponding relation between the bandwidth and the IFFT/FFT point number;

In practical application, the base station may include a scheduler and a physical layer; the scheduler is used for realizing a centralized scheduling function, and the physical layer is used for configuring corresponding IFFT/FFT points.

Based on this, in some embodiments, the scheduling terminals in the cell into the target BWP set includes:

a scheduler of a base station schedules a terminal in a cell in a target BWP set and configures Transmission Time Interval (TTI) configuration parameters;

here, the TTI configuration parameters include: the identification of the target bandwidth and the size of the target bandwidth corresponding to the target BWP set;

the scheduler determines the size of the target bandwidth corresponding to the target BWP set and determines the identifier of the corresponding target bandwidth;

correspondingly, the determining the IFFT/FFT point number corresponding to the target bandwidth based on the preset point number correspondence includes:

a physical layer of a base station receives TTI configuration parameters from a scheduler of the base station, wherein the TTI configuration parameters comprise an identification of a target bandwidth;

determining an identification of a target bandwidth corresponding to the target BWP set based on the TTI configuration parameters;

and inquiring the preset point corresponding relation according to the identification of the target bandwidth, and determining the IFFT/FFT point corresponding to the target bandwidth.

Specifically, after reading the TTI configuration parameter, the physical layer determines an identifier of a target bandwidth recorded in the TTI configuration parameter; and querying the preset point corresponding relation according to the identification of the target bandwidth, so as to determine the IFFT/FFT point corresponding to the target bandwidth.

Here, the size of the target bandwidth may be used as a kind of identifier, and the corresponding IFFT/FFT point number may be queried based on the size of the target bandwidth.

Here, the TTI configuration parameter is used to characterize a scheduling result.

The TTI configuration parameters may include: first information and second information; wherein the content of the first and second substances,

the first information is used for explaining whether a centralized scheduling function is started in the current TTI;

and the second information is used for explaining the determined target bandwidth (specifically, the identification of the target bandwidth and/or the size of the target bandwidth).

The first information and the second information in the TTI configuration parameters can be filled in by a scheduler; if the scheduler determines to start the centralized scheduling function, the start can be marked by the first information; after the scheduler implements centralized scheduling of terminals in the cell, the scheduler may determine a target bandwidth according to a bandwidth corresponding to a target BWP set that is centrally scheduled, and fill in second information corresponding to the target bandwidth.

Specifically, to implement the function of dynamically configurable IFFT/FFT points, a message may be added to the TTI configuration parameters obtained by the physical layer of the base station to notify the physical layer whether the current cell starts the function of centralized scheduling BWP, and to notify the physical layer whether the current cell starts the total bandwidth of the centralized scheduling BWP. Here, a TTI configuration parameter is provided; fig. 2 is a schematic diagram of a TTI configuration parameter according to an embodiment of the present invention; in fig. 2, R represents a reserved bit (which may occupy several bits and may be set to "0" for increasing the possibility of transmitting information later);

sch _ bwp _ en (corresponding to a first information) indicates whether the centralized scheduling function is enabled in the current TTI, and the size may be 1 bit.

When Sch _ BWP _ en is equal to "1", it indicates that all users in the current TTI schedule one BWP or at least two consecutive BWPs in a centralized manner;

when Sch _ BWP _ en is "0", it indicates that there is no centralized scheduling BWP for the current TTI.

Schedule _ bwp (corresponding to a second information) is used to mark the determined target bandwidth. Specifically, when the Sch _ BWP _ en is "1", Schedule _ BWP may be used to determine the BWP total bandwidth scheduled in the current TTI set.

The size of Schedule _ bwp may be 4 bits (bits).

The correspondence relationship regarding the configuration of Schedule _ BWP, the BWP bandwidth size, and the corresponding IFFT/FFT point number can be shown in table 1 below.

TABLE 1

And configuring the bandwidth corresponding to the BWP according to the table 1, and inquiring the IFFT/FFT point number corresponding to the matched BWP bandwidth through the target bandwidth. For example, in a 5G 20MHz bandwidth, the number of IFFT/FFT points is only required to be configured to 1024 points when a subcarrier spacing (SCS, Sub-Carrier Space) is 30 kHz; under the bandwidth of 100MHz, the number of IFFT/FFT points is 4096 points; compared with 20MHz, the IFFT/FFT module reduces the operation amount by about 3/4 by the method provided by the embodiment of the invention.

It should be noted that, when the network management device of the base station controls the base station to close the energy-saving configuration function of the physical layer, the scheduler does not start the centralized scheduling function (i.e. the unexecutable terminals in the cell are centrally scheduled in the target BWP set), and the physical layer determines that the IFFT/FFT points can perform point operation according to the system bandwidth, which is not limited herein.

The method provided by the embodiment of the invention considers that the 5G large-scale antenna array configuration has more IFFT/FFT channels, and the method can obviously reduce the processing amount of the base station, thereby achieving the effect of reducing the energy consumption.

Fig. 3 is a schematic flow chart of a method for determining IFFT/FFT point number according to an embodiment of the present invention; as shown in fig. 3, the method is applied to a terminal, and the method includes:

step 301, network management equipment of a base station configures a physical layer IFFT/FFT energy-saving switch state;

the switch state of the physical layer IFFT/FFT energy saving is equivalent to the switch state of the centralized scheduling function; that is, the network management device configures whether the base station can perform centralized scheduling.

Step 302, the base station judges the switch state; if the state is determined to be the closed state, the step 303 is entered, and if the state is determined to be the open state, the step 304 is entered;

here, the base station includes at least a scheduler, a physical layer; the determination of the switch state may be performed by a scheduler of the base station; when the scheduler determines that the current switch state is the off state, it is determined that the physical layer IFFT/FFT power saving function is not turned on (which is equivalent to the method shown in fig. 1 that the centralized scheduling function is not turned on), and step 303 is performed; when the scheduler determines that the current switch state is the on state, it considers that the physical layer IFFT/FFT power saving function is turned on (which is equivalent to turning on the centralized scheduling function in the method shown in fig. 1), and step 304 is performed;

step 303, the scheduler does not perform BWP centralized scheduling of terminals in the cell;

step 304, the scheduler performs BWP centralized scheduling of terminals in the cell according to the service load;

here, the scheduler performs BWP centralized scheduling of terminals in a cell according to traffic load, and includes:

the scheduler schedules the terminals in the cell in a target BWP set; the target BWP set includes at least one BWP.

The step 304 further comprises: and sending the scheduling result to the physical layer. The scheduling result may be presented by a TTI configuration parameter. The TTI configuration parameter may adopt the parameter structure shown in fig. 2.

Step 305, the physical layer receives the TTI configuration parameters;

step 306, extracting centralized scheduling enabling information sch _ bwp _ en by the physical layer;

step 307, determining that sch _ bwp _ en is 0 or 1, and when sch _ bwp _ en is 0, entering step 308; when sch _ bwp _ en is 1, go to step 310;

step 308, the physical layer extracts the system Bandwidth (BW) of the cell;

309, configuring the IFFT/FFT point number of the current cell by the physical layer according to the system bandwidth;

step 310, the physical layer extracts BWP bandwidth information scheduled in a cell user set (i.e. determines Schedule _ BWP);

step 311, the physical layer configures the IFFT/FFT point number of the current cell according to Schedule _ bwp.

Specifically, referring to step 306 and 311, the physical layer receives TTI configuration parameters, where the TTI configuration parameters at least include: schedule _ bwp, Schedule _ bwp _ en; determining whether centralized scheduling is carried out according to Sch _ bwp _ en; specifically, when Sch _ BWP _ en is "1", it indicates that all terminals in the current TTI schedule one BWP or at least two consecutive BWPs in a centralized manner; then, the BWP bandwidth and the IFFT/FFT points can be determined according to Schedule _ BWP; specifically, the BWP bandwidth and the IFFT/FFT point number corresponding to Schedule _ BWP are determined according to table 1 above.

When Sch _ bwp _ en is equal to "0", which indicates that users are not scheduled in a current TTI in a centralized manner, the physical layer extracts a cell system Bandwidth (BW), and configures IFFT points of a current cell according to the system bandwidth BW. Here, the system Bandwidth (BW) is the configured bandwidth of the cell, and corresponds to the unique FFT/IFFT point number. For example, if the cell is configured with 100Mhz, the number of IFFT/FFT points is 4096.

Fig. 4 is a schematic structural diagram of an IFFT/FFT point number determining apparatus according to an embodiment of the present invention; as shown in fig. 4, the apparatus is applied to a base station, and includes:

In some embodiments, the first processing module is further configured to detect a load status of the cell;

In some embodiments, the first processing module is configured to determine, as the target bandwidth, a bandwidth of a BWP included in the target BWP set, corresponding to the target BWP set including one BWP;

and the second processing module is used for inquiring the preset point corresponding relation according to the target bandwidth and determining the IFFT/FFT point corresponding to the target bandwidth.

In some embodiments, the first processing module is further configured to detect a centralized scheduling status;

In some embodiments, the first processing module is further configured to receive a switch status instruction from the network management device;

It should be noted that: when the IFFT/FFT point number determination apparatus provided in the foregoing embodiment implements the corresponding IFFT/FFT point number determination method, the division of each program module is merely used for illustration, and in practical applications, the processing may be distributed to different program modules according to needs, that is, the internal structure of the server is divided into different program modules to complete all or part of the processing described above. In addition, the apparatus provided by the above embodiment and the embodiment of the corresponding method belong to the same concept, and the specific implementation process thereof is described in the method embodiment, which is not described herein again.

Fig. 5 is a schematic structural diagram of another IFFT/FFT point number determination apparatus according to an embodiment of the present invention, and as shown in fig. 5, the apparatus 50 includes: a processor 501 and a memory 502 for storing computer programs executable on the processor; the processor 501 is configured to, when running the computer program, perform: scheduling terminals in a cell in a target BWP set, and determining a target bandwidth corresponding to the target BWP set; the target BWP set includes at least one BWP; and determining the IFFT/FFT point number corresponding to the target bandwidth based on the preset point number corresponding relation.

In an embodiment, the processor 501 is further configured to execute, when running the computer program, the following: detecting a load status of the cell; when the load state is determined to meet the preset load requirement, determining to schedule the terminals in the cell into a target BWP set; the load state meets the preset load requirement and represents that the load of the corresponding cell is lower than a preset threshold value.

In an embodiment, the processor 501 is further configured to execute, when running the computer program, the following: determining a bandwidth of a BWP included in the target BWP set as the target bandwidth, corresponding to the target BWP set including one BWP;

In an embodiment, the processor 501 is further configured to execute, when running the computer program, the following: and inquiring the preset point corresponding relation according to the target bandwidth, and determining the IFFT/FFT point corresponding to the target bandwidth.

In an embodiment, the processor 501 is further configured to, when running the computer program, perform: detecting a centralized scheduling state;

In an embodiment, the processor 501 is further configured to execute, when running the computer program, the following: receiving a switch state instruction from network management equipment;

In practical applications, the apparatus 50 may further include: at least one network interface 503. The various components in the device 50 are coupled together by a bus system 504. It is understood that the bus system 504 is used to enable communications among the components. The bus system 504 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 504 in FIG. 5. The number of the processors 501 may be at least one. The network interface 503 is used for communication between the apparatus 50 and other devices in a wired or wireless manner.

The memory 502 in embodiments of the present invention is used to store various types of data to support the operation of the device 50.

The method disclosed by the above-mentioned embodiments of the present invention may be applied to the processor 501, or implemented by the processor 501. The processor 501 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 501. The Processor 501 may be a general purpose Processor, a DiGital Signal Processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, etc. Processor 501 may implement or perform the methods, steps, and logic blocks disclosed in embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software modules may be located in a storage medium located in the memory 502, and the processor 501 reads the information in the memory 502 and performs the steps of the aforementioned methods in conjunction with its hardware.

In an exemplary embodiment, the apparatus 50 may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs), Field-Programmable Gate arrays (FPGAs), general purpose processors, controllers, Micro Controllers (MCUs), microprocessors (microprocessors), or other electronic components for performing the foregoing methods.

An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored; the computer program, when executed by a processor, performs: scheduling terminals in a cell in a target BWP set, and determining a target bandwidth corresponding to the target BWP set; the target BWP set includes at least one BWP; and determining the IFFT/FFT point number corresponding to the target bandwidth based on the preset point number corresponding relation.

In one embodiment, the computer program, when executed by the processor, performs: detecting a load status of the cell; when the load state is determined to meet the preset load requirement, determining to schedule the terminals in the cell into a target BWP set; the load state meets the preset load requirement and represents that the load of the corresponding cell is lower than a preset threshold value.

In one embodiment, the computer program, when executed by the processor, performs: determining a bandwidth of a BWP included in the target BWP set as the target bandwidth, corresponding to the target BWP set including one BWP;

In one embodiment, the computer program, when executed by the processor, performs: and inquiring the preset point corresponding relation according to the target bandwidth, and determining the IFFT/FFT point corresponding to the target bandwidth.

In one embodiment, the computer program, when executed by the processor, performs: detecting a centralized scheduling state; when the centralized scheduling state is determined to be an opening state, determining that the centralized scheduling function is available; the centralized scheduling function represents a function of scheduling terminals in a cell to a target BWP set.

In one embodiment, the computer program, when executed by the processor, performs: receiving a switch state instruction from network management equipment; and adjusting the centralized scheduling state according to the switch state instruction.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, all the functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately regarded as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: a mobile storage device, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

Alternatively, the integrated unit of the present invention may be stored in a computer-readable storage medium if it is implemented in the form of a software functional module and sold or used as a separate product. Based on such understanding, the technical solutions of the embodiments of the present invention may be essentially implemented or a part contributing to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the methods described in the embodiments of the present invention. And the aforementioned storage medium includes: a removable storage device, a ROM, a RAM, a magnetic or optical disk, or various other media that can store program code.

It should be noted that: "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

The technical means described in the embodiments of the present application may be arbitrarily combined without conflict.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. An IFFT/FFT point number determination method, the method comprising:

2. The method according to claim 1, wherein before scheduling the terminals in the cell into the target BWP set, the method comprises:

detecting a load status of the cell;

3. The method of claim 1, wherein the determining the target bandwidth for the target BWP set comprises:

determining a bandwidth of a BWP included in the target BWP set as the target bandwidth, corresponding to the target BWP set including a BWP;

4. The method according to claim 1, wherein the preset point number correspondence relationship comprises: the corresponding relation between the bandwidth and the IFFT/FFT point number;

5. The method according to any one of claims 1 to 4, further comprising:

detecting a centralized scheduling state;

6. The method of claim 5, further comprising:

receiving a switch state instruction from network management equipment;

7. An IFFT/FFT point number determination apparatus, characterized in that the apparatus comprises:

8. The apparatus of claim 7, wherein the first processing module is further configured to detect a load status of the cell;

9. The apparatus according to claim 7, wherein the first processing module is configured to determine, as the target bandwidth, a bandwidth of a BWP included in the target BWP set, corresponding to the target BWP set including one BWP;

10. The apparatus of claim 7, wherein the predetermined point number correspondence relationship comprises: the corresponding relation between the bandwidth and the IFFT/FFT point number;

11. The apparatus according to any of claims 7 to 10, wherein the first processing module is further configured to detect a centralized scheduling status; when the centralized scheduling state is determined to be an opening state, determining that the centralized scheduling function is available; the centralized scheduling function represents a function of scheduling terminals in a cell to a target BWP set.

12. The apparatus according to claim 11, wherein the first processing module is further configured to receive a switch status instruction from a network management device; and adjusting the centralized scheduling state according to the switch state instruction.

13. An IFFT/FFT point number determination apparatus comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterised in that the steps of the method of any of claims 1 to 6 are implemented when the processor executes the program.

14. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 6.