CN113115369B - Resource allocation method and device for network slices - Google Patents

Abstract

The embodiment of the invention provides a resource allocation method and device of a network slice, relates to the technical field of communication, and can improve the allocation reasonability of frequency domain resources of the network slice in a cell. The method comprises the following steps: acquiring identification information of a network slice, a frequency domain resource initial position of the network slice in a target cell and a bandwidth of the network slice, wherein the identification information of the network slice is used for determining the frequency domain resource allocation direction of the network slice in at least one cell; determining the frequency domain resource allocation direction of the network slice in the target cell according to the cell identification of the target cell and the identification information of the network slice; and determining the frequency domain resources of the network slice in the target cell according to the frequency domain resource allocation direction of the network slice in the target cell, the frequency domain resource initial position of the network slice in the target cell and the bandwidth of the network slice.

Description

Resource allocation method and device for network slices

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for resource allocation of a network slice.

Background

In a 5th generation (5G) mobile communication network system, a Network Slicing (NS) function is introduced, and air interface resources and scheduling policies thereof are uniformly defined in a network slicing manner, so that good isolation of different network slices on the air interface resources and data is ensured, and the multiplexing efficiency of the air interface resources is improved.

At present, the resource allocation method of the network slice mostly allocates resources according to the service type and the attribute information of the network slice, but the method for allocating resources only according to the service type and the attribute information of the network slice has the problem of unreasonable resource allocation.

Disclosure of Invention

The embodiment of the application provides a resource allocation method and device for a network slice, which can improve the allocation reasonability of the network slice in a cell in a frequency domain.

In a first aspect, the present application provides a resource allocation method for a network slice, where the method includes: acquiring a cell identifier of a target cell, identifier information of a network slice, a frequency domain resource initial position of the network slice in the target cell and a bandwidth of the network slice, wherein the identifier information of the network slice is used for determining a frequency domain resource allocation direction of the network slice in at least one cell; determining the frequency domain resource allocation direction of the network slice in the target cell according to the cell identification of the target cell and the identification information of the network slice; and determining the frequency domain resources of the network slice in the target cell according to the frequency domain resource allocation direction of the network slice in the target cell, the frequency domain resource initial position of the network slice in the target cell and the bandwidth of the network slice.

In the technical solution provided in the embodiment of the present application, the frequency domain resource occupied by the network slice in the target cell is determined according to the allocation direction of the frequency domain resource occupied by the network slice in the target cell, the bandwidth of the network slice, and the initial position of the frequency domain resource occupied by the network slice in the target cell. And the frequency domain resource allocation direction of the network slice in the target cell is determined according to the cell identification of the target cell and the identification information of the network slice. It should be understood that the cell identities of two neighboring cells are different, and thus the frequency domain resource allocation directions of the network slice in the two neighboring cells are likely to be different. Therefore, even if the starting positions of the frequency domain resources of the network slice in the two adjacent cells are the same, since the frequency domain resource allocation directions of the network slice in the two adjacent cells are probably different, the frequency domain resources of the network slice in the two adjacent cells can be ensured to be different, so that the signal interference between the two adjacent cells is reduced. Therefore, the technical scheme provided by the embodiment of the application can improve the distribution rationality of the frequency domain resources of the network slice in the cell.

In one possible design, the identification information of the network slice selects auxiliary information S-NSSAI for a single network slice, where S-NSSAI includes a service type SST and a slice discriminator SD, and the SD includes indication information, where the indication information is composed of N bits, each of the N bits is used to indicate a frequency domain resource allocation direction of a corresponding cell, and N is a positive integer.

In a possible design, determining a frequency domain resource allocation direction of a network slice in a target cell according to a cell identifier of the target cell and identifier information of the network slice specifically includes: determining a corresponding target bit of the target cell in the indication information according to the cell identifier of the target cell; and determining the frequency domain resource allocation direction of the network slice in the target cell according to the value of the target bit.

In this way, the frequency domain resource allocation direction of the network slice in the target cell can be determined according to the cell identifier of the target cell and the identifier information of the network slice. And the cell identities of two adjacent cells are different, so that the frequency domain resource allocation directions of the network slice in the two adjacent cells are likely to be different. Therefore, the possibility that the same network slice occupies different frequency domain resources in two adjacent cells is improved to a certain extent.

In one possible design, determining a target bit corresponding to the indication information of the target cell according to the cell identifier of the target cell specifically includes: according to formula N _c ＝N _ID ％N _cell Determining a target bit corresponding to the target cell in the indication information; wherein N is _c For the corresponding target bit in the indication information for the target cell, N _ID Is the cell identity of the target cell,% represents the remainder operation, N _cell Is a positive integer.

In one possible design, the frequency domain resource allocation direction includes an allocation direction from a low frequency to a high frequency or an allocation direction from a high frequency to a low frequency.

In a second aspect, the present application provides a communication device comprising an acquisition module and a processing module. The acquisition module is used for acquiring a cell identifier of a target cell, identifier information of a network slice, a frequency domain resource initial position of the network slice in the target cell and a bandwidth of the network slice, wherein the identifier information of the network slice is used for determining a frequency domain resource allocation direction of the network slice in at least one cell;

the processing module is used for determining the frequency domain resource allocation direction of the network slice in the target cell according to the cell identifier of the target cell and the identifier information of the network slice; and determining the frequency domain resources of the network slice in the target cell according to the frequency domain resource allocation direction of the network slice in the target cell, the frequency domain resource initial position of the network slice in the target cell and the bandwidth of the network slice.

In one possible design, the identification information of the network slice selects auxiliary information S-NSSAI for a single network slice, where the S-NSSAI includes a service type SST and a slice discriminator SD, and the SD includes indication information, where the indication information is composed of N bits, each of the N bits is used to indicate a frequency domain resource allocation direction of a corresponding cell, and N is a positive integer.

In one possible design, the processing module is further specifically configured to: determining a target bit corresponding to the target cell in the indication information according to the cell identifier of the target cell; and determining the frequency domain resource allocation direction of the network slice in the target cell according to the value of the target bit.

In one possible design, the processing module is further specifically configured to: according to formula N _c ＝N _ID ％N _cell Determining a target bit corresponding to the target cell in the indication information; wherein N is _c For the corresponding target bit, N, of the target cell in the indication information _ID For the cell identity of the target cell,% represents the remainder operation, N _cell Is a positive integer.

In one possible design, the frequency domain resource allocation direction includes an allocation direction from a low frequency to a high frequency or an allocation direction from a high frequency to a low frequency.

In a third aspect, an embodiment of the present application further provides a computer-readable storage medium, where computer instructions are stored, and when the computer instructions are executed, the method for allocating resources for a network slice in the first aspect or any one of the possible designs is implemented.

In a fourth aspect, this embodiment further provides a computer program product, which when run on a computer, causes the computer to execute the resource allocation method for network slices described in the first aspect or any one of the possible designs.

In a fifth aspect, an embodiment of the present application further provides a communication apparatus, including: a processor and a communication interface. The processor and the communication interface are adapted to implement the method for resource allocation of network slices as described in the first aspect or any one of the possible designs.

The technical effects brought by any one of the designs of the second aspect to the fifth aspect may be referred to the technical effects brought by the corresponding design of the first aspect, and are not described herein again.

Drawings

Fig. 1 is a schematic structural diagram of a communication system provided in the present application;

fig. 2 is a flowchart of a resource allocation method for a network slice provided in the present application;

Fig. 3 is a schematic diagram illustrating a resource allocation result of a network slice according to the present application;

fig. 4 is a schematic structural diagram of a communication device provided in the present application;

fig. 5 is a schematic structural diagram of another communication device provided in the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.

In the description of the present invention, "/" means "or" unless otherwise specified, for example, a/B may mean a or B. "and/or" herein is merely an association describing an associated object, and means that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. Further, "at least one" or "a plurality" means two or more.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present relevant concepts in a concrete fashion for ease of understanding.

Furthermore, the terms "including" and "having," and any variations thereof, as referred to in the description of the present application, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or modules is not limited to the listed steps or modules, but may alternatively include other steps or modules not listed or inherent to such process, method, article, or apparatus.

Technical terms related to the embodiments of the present invention are briefly described below.

1. Network slicing

5G mobile communication technology, and a network slicing function is introduced. The network slice NS is a logically isolated network for supporting specific network capabilities and network characteristics, and may be end-to-end (E2E) including the entire network, or part of the network functions may be shared among multiple network slices, which is a key technology for meeting the requirements of 5G mobile communication technology regarding network differentiation. Generally, the network characteristics of different network slices are different, and the network slices are required to be isolated from each other and not influenced by each other. For example, network slices in enhanced mobile broadband (eMBB) scenarios require large bandwidth and low delay; a network slice of an internet of things (mIOT) scene requires to support mass terminal access, but has small bandwidth and no requirement on time delay; in addition, there are ultra-reliable and ultra-low latency communication (urlllc) scenarios.

2. Single network slice selection assistance information (S-NSSAI)

The single network slice selection assistance information S-NSSAI is used to identify a specific class of network slices. The S-NSSAI includes a slice type (SST) and a Slice Differentiator (SD).

Service type SST, used to characterize the expected network slice behavior in terms of features and traffic, is 8 bits in length. SST values are defined by standards from 0 to 127, and are customized by an operator from 128-. Currently, the international standard defines 4 SST values, including an eMBB scene SST value of 1, a URLLC scene SST value of 2, a MIoT scene SST value of 3, and a vehicle networking (V2X) scene SST value of 4.

The slice discriminator SD is a complement to the network slice type, and is used to further discriminate a plurality of network slices of the same SST, and the length is 24 bits. The SD value is self-defined by an operator, and the operator can make the SD value according to the specific requirements of the actual situation on the slicing/service.

The S-NSSAI tag structure is shown in Table 1 below.

TABLE 1

Further, the S-NSSAI may be configured with an SST used in a Home Public Land Mobile Network (HPLMN), an SD used in the HPLMN, an SST used in a Visited Public Land Mobile Network (VPLMN), and an SD used in the VPLMN. The S-NSSAI may also be configured with an SST used in a Home Private Network (HPN) and a Virtual Private Network (VPN), and an SD used in the HPN. SST and SD in S-NSSAI may have different values depending on the scenario.

Exemplarily, in HPLMN and VPLMN scenarios, the value of the 1 st bit of the SST is 0; the values of the SST bits 2 to 8 are used to identify the network type, for example, 0000001 identifies an eMBB scene, 0000010 identifies a URLLC scene, 0000011 identifies an MIoT scene, and 0000100 identifies a V2X scene. Under the VPN scene, the value of the 1 st bit of the SST is 1, and the value of the 2 nd bit of the SST is 0; the values of the SST bits from 3 to 8 are used for identifying wireless slice priority, carrying hard slice/soft isolation, an Authentication Management Function (AMF) set and the like, and the values of the SST bits from 3 to 8 can also be used for distinguishing network modes of different industry networks.

For example, in VPLMN and VPN scenarios, SST is currently used only, and SD is not used for the time being. Under the HPLMN scene, the values of the bits from 9 th bit to 10 th bit of the SD are used for identifying the network type of the public land mobile network, wherein 00 identifies the public user; 01 identify public domain B2C users, such as cloud gaming users, media/live users; 10 identify private area B2C users, such as individual users of a wireless private area of a hospital, mine, etc.; the identification 11 reserves default values. The values of the 11 th bit to the 14 th bit of the SD are used for identifying the wireless slice priority, carrying hard slice/soft isolation, AMF set and the like;

Under an HPN scene, the values of bits 9 to 14 of the SD are used for identifying regions, wherein 000000 identifies a national region network slice; 000001-. 100011-111110 identifies reserved fields that can be used to identify large area network slices; 111110 identifies the default values for the reservation. The values of the 15 th bit to the 20 th bit of the SD are used for identifying industries, wherein 000000-; 111111 identifies non-differentiated industries or trial projects as default values. The values of the 21 st bit to the 32 nd bit of the SD are used for identifying companies, and 00000000-; 000010000000-; 111111111111 is used for identifying the non-difference company or the trial project, and is a default value.

3. Interference coordination

In order to coordinate interference between cells, an Inter Cell Interference Coordination (ICIC) technique is used in the interference coordination technique of 4G LTE, which controls interference as much as possible before overload occurs, and reduces the probability of overload occurrence. ICIC is the advance planning of the available time-frequency resources for each cell edge user and the limiting of the time-frequency resources for high power transmission. The service cell informs the adjacent cell which may generate interference in advance of the resource allocation condition of the edge user, so that the adjacent cell prepares in advance. The ICIC technique mainly includes a Soft Frequency Reuse (SFR) technique and a Fractional Frequency Reuse (FFR) technique, and aims to improve frequency reuse factors at cell edges, improve performance at cell edges, and reduce inter-cell interference. FFR and SFR differ in the frequency range and number of participating multiplexes. FFR is only a fraction of the frequencies multiplexed at the cell edge, whereas SFR allows all frequencies to be multiplexed at the cell edge. The two are otherwise identical.

The above is an introduction of technical terms related to the embodiments of the present invention, and details are not described below.

In the current resource allocation method for network slices, resource allocation is mostly performed based on the service type and attribute information of the network slice, and resource allocation is performed based on the service type and attribute information of the network slice only, so that two adjacent cells allocate the same frequency domain resource for the same network slice. Therefore, the current resource allocation method of the network slice has the problem of unreasonable resource allocation.

In order to solve the foregoing technical problem, embodiments of the present application provide a method and an apparatus for allocating network slice resources. The technical solution provided in the embodiments of the present application may be applied to various communication systems, for example, a New Radio (NR) communication system adopting a 5G communication technology, a future evolution system or a multiple communication convergence system, and the like. The technical scheme provided by the application can be applied to various application scenarios, for example, the scenarios such as machine to machine (M2M), macro-micro communication, eMBB, uRLLC and mMTC. As can be known to those skilled in the art, with the evolution of network architecture and the appearance of new service scenarios, the technical solution provided in the embodiments of the present application is also applicable to similar technical problems.

In a possible design, as shown in fig. 1, the technical solution provided in the embodiment of the present application may be applied to a communication device 01, where the communication device 01 is independent of an access network device 02. The communication device 01 and the access network device 02 constitute a communication system. The communication device 01 may be a slice management device or another device. The access network device 02 may be a base station or other access network devices.

In another possible design, the communication device in the embodiment of the present application may be a device inside a radio access network, such as a base station. When the communication device in the embodiment of the present application is a base station, the technical solutions provided in the embodiments of the present application are also applicable.

The technical solutions in the embodiments of the present application are described below with reference to other drawings in the embodiments of the present application.

As shown in fig. 2, an embodiment of the present application provides a resource allocation method for a network slice, where the method may include steps S201 to S203:

s201, the communication device 01 obtains a cell identifier of a target cell, identifier information of a network slice, a frequency domain resource start position of the network slice in the target cell, and a bandwidth of the network slice.

Wherein the identification information of the network slice is used for identifying the network slice. Further, in this embodiment of the present application, the identification information of the network slice is used to determine a frequency domain resource allocation direction of the network slice in at least one cell.

Optionally, step S101 may be implemented as: the communication device 01 may send request information to the base station to acquire identification information of the network slice, a frequency domain resource starting position of the network slice in the target cell, and a bandwidth of the network slice.

Alternatively, step S101 may also be implemented as: the communication device 01 may also store, in advance, the cell identifier of the target cell, the identifier information of the network slice, the frequency domain resource starting position of the network slice in the target cell, and the bandwidth of the network slice in the database; then, the communication device 01 may also directly obtain the cell identifier of the target cell, the identifier information of the network slice, the frequency domain resource starting position of the network slice in the target cell, and the bandwidth of the network slice from the database.

Optionally, the identification information of the network slice may be S-NSSAI, where the S-NSSAI includes SST and SD, and the SD includes indication information, where the indication information is composed of N bits, each of the N bits is used to indicate a frequency domain resource allocation direction of a corresponding cell, and N is a positive integer.

Optionally, the frequency domain resource allocation direction includes an allocation direction from a low frequency to a high frequency or an allocation direction from a high frequency to a low frequency.

When the frequency domain resources of the network slice in the target cell are determined according to the allocation direction from low frequency to high frequency, the starting position of the frequency domain resources of the network slice in the target cell is lower than the frequency of the ending position. Or, when the frequency domain resource of the network slice in the target cell is determined according to the allocation direction from high frequency to low frequency, the frequency domain resource of the network slice in the target cell has a starting position with a higher frequency than an ending position.

Optionally, in this embodiment, when a value of a bit in the indication information is 0, it indicates that a frequency domain resource allocation direction of a cell corresponding to the bit is an allocation direction from a low frequency to a high frequency; when the value of a bit in the indication information is 1, it indicates that the frequency domain resource allocation direction of the cell corresponding to the bit is the allocation direction from high frequency to low frequency. Or, in this embodiment of the present application, when a value of a bit in the indication information is 0, it indicates that a frequency domain resource allocation direction of a cell corresponding to the bit is an allocation direction from a high frequency to a low frequency; when the value of a bit in the indication information is 1, it indicates that the frequency domain resource allocation direction of the cell corresponding to the bit is an allocation direction from a low frequency to a high frequency. The correspondence between the value of the bit in the indication information and the frequency domain resource allocation direction is only an exemplary implementation manner provided in the embodiment of the present application, and in practical applications, a person skilled in the art may also determine the value according to actual needs, which is not limited in the present application.

In one possible design, the starting location of the frequency domain resource of the network slice in the target cell corresponds to both the allocation direction from low frequency to high frequency and the allocation direction from high frequency to low frequency. That is, regardless of whether the frequency domain resource allocation direction is an allocation direction from a low frequency to a high frequency or an allocation direction from a high frequency to a low frequency, the communication device 01 determines the frequency domain resources of the network slice in the target cell according to the same frequency domain resource start position.

In another possible design, the frequency domain resource starting position of the network slice in the target cell includes a first frequency domain resource starting position and/or a second frequency domain resource starting position. The first frequency domain resource starting position corresponds to the distribution direction from low frequency to high frequency, and the second frequency domain resource starting position corresponds to the distribution direction from high frequency channel to low frequency. Thus, when the frequency domain resource allocation direction is an allocation direction from a low frequency to a high frequency, the communication device 01 determines the frequency domain resources of the network slice in the target cell according to the first frequency domain resource starting position. When the frequency domain resource allocation direction is an allocation direction from a high channel low frequency, the communication apparatus 01 determines the frequency domain resources of the network slice in the target cell from the second frequency domain resource start position.

For example, the first frequency domain resource starting position may be PRB _start To indicate that the second frequency domain resource starting position may be PRB _upsidedown To indicate.

For example, PRB _upsidedown Without configuration, it may mean that the second frequency domain resource start position is not configured.

Also for example, PRB _start 0xFFF may indicate that the first frequency domain resource starting position is a frequency domain unit in the bandwidth of the target cell that is not allocated for use by other network slices. The frequency domain unit is the smallest unit when the cell allocates frequency domain resources to the network slice. Illustratively, the frequency domain unit may be a PRB.

As another example, PRB _start 0X32, the first frequency domain resource start position may be represented as a frequency domain unit numbered 0X 32.

S202, the communication device 01 determines the frequency domain resource allocation direction of the network slice in the target cell according to the cell identification of the target cell and the identification information of the network slice.

As a possible implementation manner, when determining the frequency domain resource allocation direction of the network slice in the target cell, the communication device 01 may first determine, according to the cell identifier of the target cell, a target bit corresponding to the target cell in the indication information; and then, determining the frequency domain resource allocation direction of the network slice in the target cell according to the value of the target bit.

Optionally, the corresponding target bit of the target cell in the indication information may be according to formula N _c ＝N _ID ％N _cell And (4) determining. Wherein N is _c For the ordering of the target bits in the indication information, N _ID Is the cell identity of the target cell,% represents the remainder operation, N _cell Is a positive integer. In addition, N is _cell The number of cells in the cell cluster may be used, or other parameters related to the cells may be used, which is not limited in the present application.

For example, it is assumed that the indication information of the network slice may be 15 th to 17 th bits of the SD, and the values of the 15 th to 17 th bits of the SD are 010, N _cell 3. Further, assuming that a bit value of 0 in the indication information indicates that the frequency domain resource allocation direction of the cell corresponding to the bit is from a low frequency to a high frequency, and a bit value of 1 in the indication information indicates that the frequency domain resource allocation direction of the cell corresponding to the bit is from a high frequency to a low frequency. In this case, with N of cell 1 _ID For example 001, according to formula N _c ＝N _ID ％N _cell It can be determined that cell 1 corresponds to the first bit in the indication information, i.e., the 15 th bit in SD. Since the 15 th bit in SD takes a value of 0, the frequency domain resource allocation direction of cell 1 can be determined to be from low frequency to high frequency.

It is to be understood that the above-mentioned manner and formula for determining the frequency domain resource allocation direction of the network slice in the target cell are merely exemplary implementations provided in this embodiment, and in practical applications, the correspondence between the cell identifier of the target cell and the target bit in the indication information may also be determined in other various manners, for example, various random algorithm formulas, which is not limited in this application.

In this way, the frequency domain resource allocation direction of the network slice in the target cell can be determined according to the cell identifier of the target cell and the identifier information of the network slice. And the cell identities of two adjacent cells are different, so that the frequency domain resource allocation directions of the network slice in the two adjacent cells are likely to be different. Therefore, the possibility that the same network slice occupies different frequency domain resources in two adjacent cells is improved to a certain extent.

S203: the communication device 01 determines the frequency domain resource of the network slice in the target cell according to the frequency domain resource allocation direction of the network slice in the target cell, the frequency domain resource starting position of the network slice in the target cell, and the bandwidth of the network slice.

Illustratively, in the embodiment of the present application, the number of target cells is 3, and N of cell 1 _ID Is 001, N of cell 2 _ID Is 002, N of cell 3 _ID Is 003. The number of the network slices is 5, and the identification information of the network slices, the frequency domain resource initial position of the network slices in the target cell, the bandwidth of the network slices, and other information are as follows.

Network slice 001: the values of the 15 th bit to the 17 th bit of the SD are 001, and the frequency domain resource starting position of the network slice in the target cell is shown in table 2 below:

TABLE 2

parameter[0](PRBstart ═ 0xFFF, prbupsid } unconfigured }
	parameter[1]{ PRBstart ═ 0x32, prbupsid } unconfigured }
parameter[2]PRBstart is not configured, prbupsid is 0xFFF }

Wherein, the parameter [0] is used for configuring the frequency domain resource starting position in the cell corresponding to the 15 th bit. parameter [1] is used to configure the frequency domain resource starting position in the cell corresponding to the 16 th bit. parameter [2] is used to configure the frequency domain resource starting position in the cell corresponding to the 17 th bit.

Network slice 002: the values of the 15 th bit to the 17 th bit of the SD are 100, and the frequency domain resource starting position of the network slice in the target cell is shown in table 3 below:

TABLE 3

parameter[0]PRBstart is not configured, prbupsid is 0xFFF }
	parameter[1]{ PRBstart ═ 0x64, prbupsid } unconfigured }
parameter[2](PRBstart ═ 0xFFF, prbupsid } unconfigured }

Network slice 003: the values of the 15 th bit to the 17 th bit of the SD are 000, and the frequency domain resource starting position of the network slice in the target cell is shown in table 4 below:

TABLE 4

parameter[0]{ PRBstart ═ 0x32, prbupsid } unconfigured }
	parameter[1]{ PRBstart ═ 0x78, prbupsid } unconfigured }
parameter[2]{ PRBstart ═ 0x64, prbupsid } unconfigured }

Network slice 004: the values of the 15 th to 17 th bits of the SD are 001, and the frequency domain resource starting position of the network slice in the target cell is shown in table 5 below:

TABLE 5

parameter[0](PRBstart ═ 0xFFF, prbupsid } unconfigured }
	parameter[1](PRBstart ═ 0xFFF, prbupsid } unconfigured }
parameter[2]PRBstart is not configured, prbupsid is 0xFFF }

Network slice 005: the values of the 15 th bit to the 17 th bit of the SD are 101, and the frequency domain resource starting position of the network slice in the target cell is shown in table 6 below:

TABLE 6

parameter[0]PRBstart is not configured, prbupsid is 0xFFF }
	parameter[1](PRBstart ═ 0xFFF, prbupsid } unconfigured }
parameter[2]PRBstart is not configured, prbupsid is 0xFFF }

Optionally, in this embodiment of the present application, first, a frequency domain resource allocation direction of a network slice in a target cell is determined according to a cell identifier of the target cell and identifier information of the network slice, as shown in table 7 below.

TABLE 7

As shown in fig. 3, in the embodiment of the present application, a schematic diagram of frequency domain resource allocation based on the identification information of the network slice and the frequency domain resource starting position of the network slice in the target cell is shown. The three cells with the cell identifications of 001, 002 and 003 respectively determine the frequency domain resource allocation direction of the network slice in the respective cell according to the cell identification of the respective cell and the identification information of the network slice, and then determine the frequency domain resource of the network slice in the respective cell by combining the value of the identification information of the network slice and the initial position of the frequency domain resource of the network slice in the respective cell. Because the attributes of different network slices are different, when the network slices with different attributes allocate the same frequency domain resource in two adjacent cells, the probability of generating interference is low, and thus the signal interference between the two adjacent cells is reduced.

Illustratively, network slice 4 is for voice-like traffic and network slice 2 is for download-like traffic. Compared with the network slice 4 occupying the same frequency domain resources in the cell 1 and the cell 2, as shown in fig. 3, the frequency domain resources occupied by the network slice 4 in the cell 1 are the same as the frequency domain resources occupied by the network slice 2 in the cell 2, so as to reduce the signal interference between two adjacent cells on the same frequency domain resources.

Based on the embodiment shown in fig. 2, the frequency domain resources occupied by the network slice in the target cell may be determined according to the allocation direction of the frequency domain resources occupied by the network slice in the target cell, the bandwidth of the network slice, and the starting position of the frequency domain resources occupied by the network slice in the target cell. And the frequency domain resource allocation direction of the network slice in the target cell is determined according to the cell identification of the target cell and the identification information of the network slice. It should be understood that the cell identities of two neighboring cells are different, and thus the frequency domain resource allocation directions of the network slice in the two neighboring cells are likely to be different. Therefore, even if the starting positions of the frequency domain resources of the network slice in the two adjacent cells are the same, since the frequency domain resource allocation directions of the network slice in the two adjacent cells are probably different, the frequency domain resources of the network slice in the two adjacent cells can be ensured to be different, so that the signal interference between the two adjacent cells is reduced. Therefore, the technical scheme provided by the embodiment of the application can improve the distribution rationality of the frequency domain resources of the network slice in the cell.

It can be seen that the foregoing describes the solution provided by the embodiments of the present application primarily from a methodological perspective. To implement the above functions, it includes hardware structures and/or software modules for performing the respective functions. Those of skill in the art will readily appreciate that the various illustrative modules and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

In the embodiment of the present application, the resource allocation apparatus of the network slice may perform the division of the function modules according to the above method example, for example, each function module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. Optionally, the division of the modules in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.

Fig. 4 is a schematic structural diagram of a resource allocation apparatus for network slice according to an embodiment of the present disclosure. The resource allocation apparatus is used for improving the reasonability of allocation of frequency domain resources in a cell by a network slice, for example, the resource allocation apparatus is used for executing a resource allocation method of the network slice shown in fig. 2, and includes: an acquisition module 401 and a processing module 402.

An obtaining module 401, configured to obtain a cell identifier of a target cell, identifier information of a network slice, a frequency domain resource starting position of the network slice in the target cell, and a bandwidth of the network slice, where the identifier information of the network slice is used to determine a frequency domain resource allocation direction of the network slice in at least one cell;

a processing module 402, configured to determine, according to the cell identifier of the target cell and the identifier information of the network slice, a frequency domain resource allocation direction of the network slice in the target cell; and determining the frequency domain resources of the network slice in the target cell according to the frequency domain resource allocation direction of the network slice in the target cell, the frequency domain resource starting position of the network slice in the target cell and the bandwidth of the network slice.

In one possible design, the identification information of the network slice selects auxiliary information S-NSSAI for a single network slice, where the S-NSSAI includes a service type SST and a slice discriminator SD, and the SD includes indication information, where the indication information is composed of N bits, each of the N bits is used to indicate a frequency domain resource allocation direction of a corresponding cell, and N is a positive integer.

In one possible design, the processing module 402 is further specifically configured to: determining a target bit corresponding to the target cell in the indication information according to the cell identifier of the target cell; and determining the frequency domain resource allocation direction of the network slice in the target cell according to the value of the target bit.

In a possible design, the processing module 402 is further specifically configured to: according to formula N _c ＝N _ID ％N _cell Determining a target bit corresponding to the target cell in the indication information; wherein N is _c Is the targetThe corresponding target bit, N, of the cell in the indication information _ID For the cell identity of the target cell,% represents the modulo operation, N _cell Is a positive integer.

In one possible design, the frequency domain resource allocation direction includes an allocation direction from a low frequency to a high frequency or an allocation direction from a high frequency to a low frequency.

Further, as shown in fig. 5, another possible structural schematic diagram of a communication device provided in the embodiment of the present application includes: a processor 502, a communication interface 503, and a bus 504. Optionally, the communication device may further comprise a memory 501.

A processor 502 for controlling and managing the actions of the communication device, e.g., performing the steps performed by the processing module 402 described above, and/or other processes for performing the techniques described herein.

A communication interface 503 for supporting communication of the communication device with other network devices, for example, in connection with the processor 502 to perform the steps performed by the processing module 402 described above, and/or to perform other processes for the techniques described herein.

The processor 502 described above may be implemented or performed with the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may be a central processing unit, general purpose processor, digital signal processor, application specific integrated circuit, field programmable gate array or other programmable logic device, transistor logic device, hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. The processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, DSPs, and microprocessors, among others.

The memory 501 is used to store program codes and data of the communication device. Wherein the memory 501 may be a memory in a communication device, which may include volatile memory, such as random access memory; the memory may also include non-volatile memory, such as read-only memory, flash memory, a hard disk, or a solid state disk; the memory may also comprise a combination of memories of the kind described above.

The bus 504 may be an Extended Industry Standard Architecture (EISA) bus or the like. The bus 504 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in FIG. 5, but this is not intended to represent only one bus or type of bus.

Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions. For the specific working processes of the system, the apparatus, and the module described above, reference may be made to the corresponding processes in the foregoing method embodiments, which are not described herein again.

The embodiment of the application also provides a computer readable storage medium. All or part of the processes in the above method embodiments may be performed by computer instructions to instruct related hardware, and the program may be stored in the above computer-readable storage medium, and when executed, may include the processes in the above method embodiments. The computer readable storage medium may be an internal storage unit of the communication device of any of the foregoing embodiments, such as a hard disk or a memory of the communication device. The computer readable storage medium may also be an external storage device of the communication apparatus, such as a plug-in hard disk, a Smart Memory Card (SMC), a Secure Digital (SD) card, a flash memory card (flash card), or the like, provided on the communication apparatus. Further, the computer-readable storage medium may include both an internal storage unit and an external storage device of the communication apparatus. The computer-readable storage medium stores the computer program and other programs and data required by the communication apparatus. The above-described computer-readable storage medium may also be used to temporarily store data that has been output or is to be output.

An embodiment of the present application further provides a computer program product, which contains a computer program, and when the computer program product runs on a computer, the computer is caused to execute the steps of the resource allocation method for network slices in the embodiment shown in fig. 2.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (9)

1. A method for resource allocation of a network slice, the method comprising:

acquiring a cell identifier of a target cell, identifier information of a network slice, a frequency domain resource starting position of the network slice in the target cell, and a bandwidth of the network slice, wherein the identifier information of the network slice is used for determining a frequency domain resource allocation direction of the network slice in at least one cell, and the frequency domain resource allocation direction comprises an allocation direction from low frequency to high frequency or an allocation direction from high frequency to low frequency;

Determining the frequency domain resource allocation direction of the network slice in the target cell according to the cell identifier of the target cell and the identifier information of the network slice;

determining the frequency domain resources of the network slice in the target cell according to the frequency domain resource allocation direction of the network slice in the target cell, the frequency domain resource starting position of the network slice in the target cell, and the bandwidth of the network slice.

2. The method according to claim 1, wherein the identification information of the network slice is single network slice selection assistance information S-NSSAI, the S-NSSAI comprises a service type SST and a slice discriminator SD, the SD comprises indication information, the indication information is composed of N bits, each of the N bits is used for indicating a frequency domain resource allocation direction of a corresponding cell, and N is a positive integer.

3. The method according to claim 2, wherein the determining, according to the cell identifier of the target cell and the identifier information of the network slice, a frequency domain resource allocation direction of the network slice in the target cell specifically includes:

Determining a target bit corresponding to the target cell in the indication information according to the cell identifier of the target cell;

and determining the frequency domain resource allocation direction of the network slice in the target cell according to the value of the target bit.

4. The method according to claim 3, wherein the determining, according to the cell identifier of the target cell, the target bit corresponding to the indication information by the target cell specifically includes:

according to formula N _c ＝N _ID ％N _cell Determining a target bit corresponding to the target cell in the indication information;

wherein N is _c For the corresponding target bit, N, of the target cell in the indication information _ID For the cell identity of the target cell,% represents the remainder operation, N _cell Is a positive integer.

5. A communications apparatus, the apparatus comprising:

an obtaining module, configured to obtain a cell identifier of a target cell, identifier information of a network slice, a frequency domain resource starting position of the network slice in the target cell, and a bandwidth of the network slice, where the identifier information of the network slice is used to determine a frequency domain resource allocation direction of the network slice in at least one cell, and the frequency domain resource allocation direction includes an allocation direction from a low frequency to a high frequency or an allocation direction from a high frequency to a low frequency;

A processing module, configured to determine, according to the cell identifier of the target cell and the identifier information of the network slice, a frequency domain resource allocation direction of the network slice in the target cell; determining the frequency domain resources of the network slice in the target cell according to the frequency domain resource allocation direction of the network slice in the target cell, the frequency domain resource starting position of the network slice in the target cell, and the bandwidth of the network slice.

6. The communication apparatus according to claim 5, wherein the identification information of the network slice is single network slice selection assistance information S-NSSAI, the S-NSSAI comprises a service type SST and a slice discriminator SD, the SD comprises indication information, the indication information is composed of N bits, each of the N bits is used for indicating a frequency domain resource allocation direction of a corresponding cell, and N is a positive integer.

7. The communications apparatus according to claim 6, wherein the processing module is further specifically configured to:

determining a target bit corresponding to the target cell in the indication information according to the cell identifier of the target cell; and determining the frequency domain resource allocation direction of the network slice in the target cell according to the value of the target bit.

8. The communications apparatus of claim 7, wherein the processing module is further specifically configured to:

according to formula N _c ＝N _ID ％N _cell Determining a target bit corresponding to the target cell in the indication information;

wherein N is _c For the corresponding target bit, N, of the target cell in the indication information _ID For the cell identity of the target cell,% represents the remainder operation, N _cell Is a positive integer.

9. A computer-readable storage medium having stored thereon computer instructions which, when executed, implement the method of any one of claims 1-4.

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