CN113453235A

CN113453235A - Method and device for allocating wireless resources

Info

Publication number: CN113453235A
Application number: CN202110644386.XA
Authority: CN
Inventors: 刘洋; 李福昌
Original assignee: China United Network Communications Group Co Ltd
Current assignee: China United Network Communications Group Co Ltd
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2021-09-28
Anticipated expiration: 2041-06-09
Also published as: CN113453235B

Abstract

The embodiment of the invention provides a method and a device for allocating wireless resources, relates to the technical field of communication, and can improve the utilization rate of the wireless resources and further improve the rationality of wireless resource allocation. The method comprises the following steps: determining the bandwidth occupancy rate of the network slice, wherein the bandwidth occupancy rate is the ratio of the bandwidth of the used resources of the network slice to the bandwidth of the static resources; under the condition that the bandwidth occupancy rate of the network slice is less than or equal to a preset threshold value, determining a first bandwidth according to the bandwidth of the static resource, the bandwidth of the semi-static resource and the bandwidth occupancy rate, wherein the first bandwidth is the bandwidth of the unused resource in the static resource and the semi-static resource; releasing the semi-static resource when the first bandwidth is larger than or equal to the bandwidth of the semi-static resource; and releasing the resources of the first bandwidth from the semi-static resources in the case that the first bandwidth is smaller than the bandwidth of the semi-static resources.

Description

Method and device for allocating wireless resources

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for allocating radio resources.

Background

In the fifth generation (5th generation, 5G) mobile communication network system, a network slicing function is introduced. The network slices are isolated from each other, and the congestion, overload and configuration adjustment of any one network slice do not affect other network slices. The system can create different network slices according to different services and characteristics of application scenes, and realize different network architectures by using proper resource allocation modes, control management mechanisms and operation strategies, thereby ensuring the performance requirements of the application scenes and improving the user experience and the network resource utilization rate.

At present, a wireless resource allocation method for network slices mainly adopts a static resource allocation mode and mainly adopts a dynamic resource allocation mode. In the static resource allocation scheme, radio resources are fixedly allocated to each specific network slice for a long time. Therefore, on one hand, when the service of a certain network slice bursts, the burst service cannot occupy more wireless resources, so that the service resource requirement cannot be met; on the other hand, the traffic of some network slices is small, wireless resources do not need to be occupied for a long time, but the occupied wireless resources cannot be released to other network slice users, and wireless resource waste is caused. In the dynamic resource allocation manner, a large amount of radio resources may be occupied by a large traffic slice in a certain period, and resource scheduling cannot be obtained in real time when the traffic of other network slices increases, which affects user experience. Therefore, both the static resource allocation method and the dynamic resource allocation method have the problems of radio resource waste and unreasonable allocation.

Disclosure of Invention

The embodiment of the application provides a method and a device for allocating wireless resources, which improve the utilization rate of the wireless resources and further improve the rationality of wireless resource allocation.

In a first aspect, the present application provides a method for allocating radio resources, including: determining the bandwidth occupancy rate of the network slice, wherein the bandwidth occupancy rate is the ratio of the bandwidth of the used resources of the network slice to the bandwidth of the static resources; under the condition that the bandwidth occupancy rate of the network slice is less than or equal to a preset threshold value, determining a first bandwidth according to the bandwidth of the static resource, the bandwidth of the semi-static resource and the bandwidth occupancy rate, wherein the first bandwidth is the bandwidth of the unused resource in the static resource and the semi-static resource; releasing the semi-static resource when the first bandwidth is larger than or equal to the bandwidth of the semi-static resource; and releasing the resources of the first bandwidth from the semi-static resources in the case that the first bandwidth is smaller than the bandwidth of the semi-static resources.

According to the technical scheme, static resources and semi-static resources are allocated to the network slices at the same time, so that the static resources and the semi-static resources can be jointly scheduled, different bandwidth requirements of the network slices are met, and the reasonability of wireless resource allocation is improved. And under the condition that the bandwidth occupancy rate of the network slice is less than or equal to the preset threshold value, namely under the condition that unused resources exist in the semi-static resources, determining the bandwidth of the unused resources, and comparing the bandwidth with the bandwidth of the semi-static resources, so that the method and the device can release all or part of the resources in the semi-static resources, realize the reallocation of the unused resources in the semi-static resources, meet more wireless resource requirements, improve the utilization rate of the wireless resources and further improve the rationality of the wireless resource allocation.

In one possible design, determining the first bandwidth according to the bandwidth of the static resource, the bandwidth of the semi-static resource, and the bandwidth occupancy includes: determining the bandwidth of the used resource of the network slice according to the bandwidth and the bandwidth occupancy rate of the static resource; and determining the first bandwidth according to the bandwidth of the static resource, the bandwidth of the semi-static resource and the bandwidth of the used resource.

In one possible design, the method further includes: determining a first uplink bandwidth of a network slice, wherein the first uplink bandwidth is an average bandwidth of uplink resources used by uplink services of the network slice in a historical time period; determining a first downlink bandwidth of the network slice, wherein the first downlink bandwidth is an average bandwidth of downlink resources used by downlink services of the network slice in a historical time period; and determining the bandwidth of the static resource according to the first uplink bandwidth and the first downlink bandwidth.

In one possible design, the method further includes: determining a second uplink bandwidth and a second downlink bandwidth of the network slice, wherein the second uplink bandwidth is the bandwidth of uplink resources expected to be needed by the network slice, and the second downlink bandwidth is the bandwidth of downlink resources expected to be needed by the network slice; and determining the bandwidth of the semi-static resource according to the second uplink bandwidth, the second downlink bandwidth and the bandwidth of the static resource.

In one possible design, determining a second uplink bandwidth and a second downlink bandwidth of the network slice includes: determining a second uplink bandwidth of the network slice according to a first formula; determining a second downlink bandwidth of the network slice according to a second formula; the first formula is:

wherein R is_ssmUL′＝R_smUL×N_E；R_ssUL′＝∑R_ssmUL′；R_ssmULIs a second uplink bandwidth; r_ssmUL' is a predicted value of the second upstream bandwidth; r_smULIs a first uplink bandwidth; n is a radical of_EThe uplink estimation coefficient is used for estimating the bandwidth of the uplink resource expected to be needed by the network slice in the busy hour period; r_ssULThe sum of the estimated values of the second uplink bandwidths of all the network slices in the system is used for indicating the bandwidth of uplink resources expected to be needed by all the network slices in the system during the busy hour period; and R is the system bandwidth.

The second formula is:

wherein R is_ssmDL′＝R_smDL×N_E；R_ssDL′＝∑R_ssmDL′；R_ssmDLIs a second downlink bandwidth; r_ssmDL' is an estimated value of the second downlink bandwidth; r_smDLIs a first downlink bandwidth; n is a radical of_EThe downlink estimation coefficient is used for estimating the bandwidth of downlink resources expected to be needed by the network slice in the busy hour period; r_ssDLThe sum of the estimated values of the second downlink bandwidths of all the network slices in the system is used for indicating the bandwidth of downlink resources expected to be needed by all the network slices in the system during the busy hour period; and R is the system bandwidth.

In one possible design, determining the bandwidth of the semi-static resource according to the second uplink bandwidth, the second downlink bandwidth, and the bandwidth of the static resource includes: according to the formula R_ssm＝max{R_ssmUL，R_ssmDL}-R_smDetermining a semi-static stateA bandwidth of the resource; wherein R is_ssmRepresenting bandwidth of semi-static resources, R_smIs the bandwidth of the static resource.

In one possible design, after releasing the semi-static resources, or after releasing the resources of the first bandwidth from the semi-static resources, the method further includes: and under the condition that the released resources in the semi-static resources of the network slice meet the bandwidth requirement of the terminal, distributing the resources for the terminal in the released resources according to the bandwidth requirement of the terminal.

In a second aspect, an embodiment of the present application further provides a communication apparatus, including: and a processing module. The processing module is used for determining the bandwidth occupancy rate of the network slice, wherein the bandwidth occupancy rate is the ratio of the bandwidth of the used resource of the network slice to the bandwidth of the static resource; under the condition that the bandwidth occupancy rate of the network slice is less than or equal to a preset threshold value, determining a first bandwidth according to the bandwidth of the static resource, the bandwidth of the semi-static resource and the bandwidth occupancy rate, wherein the first bandwidth is the bandwidth of the unused resource in the static resource and the semi-static resource; releasing the semi-static resource when the first bandwidth is larger than or equal to the bandwidth of the semi-static resource; and releasing the resources of the first bandwidth from the semi-static resources in the case that the first bandwidth is smaller than the bandwidth of the semi-static resources.

In one possible design, the processing module is specifically configured to determine the bandwidth of the used resource of the network slice according to the bandwidth and the bandwidth occupancy rate of the static resource; and determining the first bandwidth according to the bandwidth of the static resource, the bandwidth of the semi-static resource and the bandwidth of the used resource.

In one possible design, the processing module is further configured to determine a first uplink bandwidth of the network slice, where the first uplink bandwidth is an average bandwidth of uplink resources used by an uplink service of the network slice in a historical time period; determining a first downlink bandwidth of the network slice, wherein the first downlink bandwidth is an average bandwidth of downlink resources used by downlink services of the network slice in a historical time period; and determining the bandwidth of the static resource according to the first uplink bandwidth and the first downlink bandwidth.

In one possible design, the processing module is further configured to determine a second uplink bandwidth and a second downlink bandwidth of the network slice, where the second uplink bandwidth is a bandwidth of an uplink resource expected to be needed by the network slice, and the second downlink bandwidth is a bandwidth of a downlink resource expected to be needed by the network slice; and determining the bandwidth of the semi-static resource according to the second uplink bandwidth, the second downlink bandwidth and the bandwidth of the static resource.

In one possible design, the processing module is specifically configured to determine a second uplink bandwidth of the network slice according to a first formula; determining a second downlink bandwidth of the network slice according to a second formula; the first formula is:

The second formula is:

wherein R is_ssmDL′＝R_smDL×N_E；R_ssDL′＝∑R_ssmDL′；R_ssmDLIs a second downlink bandwidth; r_ssmDL' is an estimated value of the second downlink bandwidth; r_smDLIs a first downlink bandwidth; n is a radical of_EThe downlink estimation coefficient is used for estimating the bandwidth of downlink resources expected to be needed by the network slice in the busy hour period; r_ssDL' all networks in the SystemThe estimated value sum of the second downlink bandwidth of the slices is used for indicating the bandwidth of downlink resources expected to be needed by all network slices in a busy hour period in the system; and R is the system bandwidth.

In one possible design, the processing module is specifically configured to determine a bandwidth of the semi-static resource according to the second uplink bandwidth, the second downlink bandwidth, and a bandwidth of the static resource, and includes: according to the formula R_ssm＝max{R_ssmUL，R_ssmDL}-R_smDetermining the bandwidth of the semi-static resource; wherein R is_ssmRepresenting bandwidth of semi-static resources, R_smIs the bandwidth of the static resource.

In one possible design, the processing module is further configured to, when the released resources in the semi-static resources of the network slice meet the bandwidth requirement of the terminal, allocate resources to the terminal in the released resources according to the bandwidth requirement of the terminal.

In a third aspect, an embodiment of the present application further provides a communication apparatus, including: a processor. The processor is configured to implement the method for allocating radio resources according to the first aspect or any one of the possible designs.

In a fourth 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 radio resources described in the first aspect or any one of the possible designs is implemented.

In a fifth aspect, this embodiment further provides a computer program product, which when run on a computer, causes the computer to perform the method for allocating radio resources according to 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 device according to an embodiment of the present disclosure;

fig. 2 is a flowchart of a method for allocating radio resources according to an embodiment of the present application;

fig. 3 is a diagram illustrating a result of a method for allocating radio resources according to an embodiment of the present application;

fig. 4 is a flowchart of another method for allocating radio resources according to an embodiment of the present application;

fig. 5 is a flowchart of another method for allocating radio resources according to an embodiment of the present application;

fig. 6 is a flowchart of another method for allocating radio resources according to an embodiment of the present application;

fig. 7 is a diagram illustrating a result of another method for allocating radio resources according to an embodiment of the present application;

fig. 8 is a flowchart of another method for allocating radio resources according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of another communication device according to an embodiment of 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. The terms "first", "second", and the like do not necessarily limit the number and execution order, and the terms "first", "second", and the like do not necessarily limit the difference.

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.

A brief description of some concepts involved in embodiments of the present invention follows.

1. Network slicing

In a 5G mobile communication network system, a variety of application scenarios emerge, wherein three typical application scenarios are an enhanced mobile broadband (eMBB) scenario, a large-scale machine type communication (mtc) scenario, and a Critical Machine Type Communication (CMTC) scenario. Different application scenarios have different requirements in mobility, security, time delay, reliability and other aspects.

At present, the network is difficult to meet the requirements of all application scenes, and if constructing a plurality of different physical networks for different application scenes is not practical, the huge cost generated by constructing the plurality of different physical networks cannot be accepted by operators. In the background, a concept of network slicing is introduced, that is, on one physical infrastructure, different network slices are constructed as needed by using technologies such as Software Defined Networking (SDN) and Network Function Virtualization (NFV). The network slice can be created according to the characteristics of different services and application scenes, and is configured with proper resource allocation modes, control management mechanisms and operation strategies to realize different network architectures, so that the performance requirements of the application scenes are ensured, and the user experience and the network resource utilization rate are improved. The network slice comprises a wireless access network slice, a core network slice and a transmission network slice connecting the wireless access network slice and the core network slice, thereby fully utilizing the advantages of the network slice technology. The wireless access network slice runs on a wireless cloud platform (comprising wireless hardware and a baseband resource pool), and a dedicated and customized logic network is constructed by utilizing virtualized resources, wherein the virtualization of one base station into a plurality of virtual base stations is an essential link, and wireless resources, such as time slots, frequency spectrums, signal processing and the like, are allocated to different virtual base stations according to a certain principle. For the virtual base station, the network slice configures various parameters of the air interface, such as symbol length, subcarrier spacing, cyclic prefix length, and parameters of hybrid automatic repeat request, for it to implement different service models.

In the above wireless network virtualization environment, radio resource allocation is given a new meaning. First, conventional resource scheduling is in units of base stations, and radio resources of the same base station are allocated to some users attached to the base station under the action of a scheduler. The schedulers of the different base stations may not interact at all or may interact coarsely through some signaling. In the new architecture, the network-level radio resource allocation is possible due to the implementation of virtualization and centralization. In the management of radio resources in network slices, a mobile operator needs to deploy an efficient and flexible scheduling technique in order to flexibly allocate radio resources to different network slices.

2. Radio resource allocation

The radio resource allocation technology is a key factor for realizing efficient resource utilization, and network slices can be isolated from each other, for example, air interface congestion of one network slice does not affect other network slices. There are currently three possible schemes to achieve radio resource allocation for network slices. Static resource allocation, semi-static resource allocation and dynamic resource allocation.

Static resource allocation scheme: radio resources (e.g., frequency domain resources and/or time domain resources) are fixedly allocated to each particular network slice, i.e., each particular network slice corresponds to a particular static resource. Once resources are configured, the network slice may last for a long time, and the terminal device may access the target network slice according to the pre-configuration of radio resources and radio access technology information.

Semi-static resource allocation scheme: radio resources are semi-statically assigned to each particular network slice. The bandwidth and/or time slots occupied by each network slice vary with the amount of traffic. In this case, a more flexible mechanism may be devised to help the user determine the radio resource and radio access technology information of the target network slice.

Dynamic resource allocation scheme: the radio resources are dynamically allocated among the network slices, i.e. all network slices share the whole radio resources, and the radio resources are dynamically allocated to each network slice. For example, bandwidth and/or slot occupancy is determined by real-time packet arrival conditions of the network slice. The common scheduler of the network slices realizes dynamic resource allocation and ensures fairness among the network slices.

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

The current radio resource allocation scheme is mainly a static resource allocation scheme, frequency resources and time resources are fixedly allocated to each specific network slice, and the network slice connects to the network based on the corresponding static resources to complete the service. Therefore, on one hand, once static resources are configured, a network slice can be continuously owned for a long time, but when network slice service bursts and the wireless resource demand exceeds the static resources, the burst service cannot occupy more wireless resources due to the fixed static resource allocation in the static resource allocation scheme, and therefore the service resource demand cannot be met, and user experience is affected. On the other hand, when the traffic of the network slice is small, most of the wireless resources corresponding to the network slice occupy for a long time and cannot be released to other network slice users, which causes wireless resource waste. In the dynamic resource allocation scheme, a large amount of wireless resources may be occupied by a large-traffic network slice in a certain period, and when traffic of other slices increases, the resources cannot be scheduled in real time because the resources are already occupied by the large-traffic slice, which affects user experience. Therefore, both the static resource allocation mode and the dynamic resource allocation mode have the problems of radio resource waste, low radio resource utilization rate and unreasonable allocation.

In order to solve the above technical problem, an embodiment of the present application provides a method for allocating radio 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, scenarios such as machine to machine (M2M), macro-micro communication, eMBB, mtc, and CMTC. As can be known to those skilled in the art, with the evolution of network architecture and the emergence of new service scenarios, the technical solution provided in the embodiments of the present application is also applicable to similar technical problems.

In order to implement the method for allocating radio resources provided in the embodiments of the present application, an embodiment of the present application provides a communication device for executing the method for allocating radio resources, and fig. 1 is a schematic structural diagram of a communication device provided in the embodiments of the present application. As shown in fig. 1, the communication device 100 includes at least one processor 101, a communication line 102, and at least one communication interface 104, and may further include a memory 103. The processor 101, the memory 103 and the communication interface 104 may be connected via a communication line 102.

The processor 101 may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement embodiments of the present application, such as: one or more Digital Signal Processors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs).

The communication link 102 may include a path for communicating information between the aforementioned components.

The communication interface 104 is used for communicating with other devices or a communication network, and may use any transceiver or the like, such as ethernet, Radio Access Network (RAN), Wireless Local Area Network (WLAN), and the like.

The memory 103 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that may store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that may store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to include or store desired program code in the form of instructions or data structures and that can be accessed by a computer.

In a possible design, the memory 103 may exist independently from the processor 101, that is, the memory 103 may be a memory external to the processor 101, in which case, the memory 103 may be connected to the processor 101 through the communication line 102, and is used for storing execution instructions or application program codes, and is controlled by the processor 101 to execute, so as to implement the communication method provided by the following embodiments of the present application. In yet another possible design, the memory 103 may also be integrated with the processor 101, that is, the memory 103 may be an internal memory of the processor 101, for example, the memory 103 is a cache memory, and may be used for temporarily storing some data and instruction information.

As one implementation, the processor 101 may include one or more CPUs, such as CPU0 and CPU1 of FIG. 1. As another implementation, the communication device 100 may include multiple processors, such as the processor 101 and the processor 107 of fig. 1. As yet another implementable manner, the communication apparatus 100 may further include an output device 105 and an input device 106.

As shown in fig. 2, an embodiment of the present application provides a method for allocating radio resources, which is applied to the communication apparatus 100 in fig. 1, and the method includes:

s201, the communication device determines the bandwidth of the static resource of the network slice.

Wherein the communication device can allocate static resources for each of at least one network slice in the system. The static resource of the network slice may also be referred to as a dedicated resource of the network slice, and only supports the traffic of the network slice, but not supports the traffic of other network slices.

As a possible implementation, the communication device may reallocate the static resources of each network slice in the system according to the period T1, that is, periodically change the bandwidth of the static resources of the network slice to meet the bandwidth requirements of different time periods. Illustratively, the period T1 may be 20 days or 30 days.

S202, the communication device determines a bandwidth of the semi-static resource of the network slice.

Wherein the communication device may allocate semi-static resources for each of at least one network slice in the system. The semi-static resource of the network slice is the reserved resource of the network slice, and can support the service of the network slice and the service of other network slices. For example, when unused resources exist in the semi-static resources of the network slice, all or part of the semi-static resources may be released, and the released resources may support the traffic of other network slices.

As a possible implementation, the communication device may reallocate the semi-static resources of each network slice in the system according to the period T2, that is, periodically change the bandwidth of the semi-static resources of the network slice to meet different bandwidth requirements. Illustratively, the period T2 may be 1 second or 2 seconds. The period T1 is greater than the period T2.

It can be understood that the communication device periodically calculates and reallocates the static resources and the semi-static resources of the network slice, so that the static resources and the semi-static resources of the network slice can be periodically changed, and the continuously changing bandwidth requirements of the network slice are met. And because the allocation period T1 of the static resource is far greater than the allocation period T2 of the semi-static resource, the static resource and the semi-static resource are jointly scheduled, the static resource can meet the bandwidth requirement of the general service of the network slice, and the semi-static resource can meet the bandwidth requirement of the burst service of the network slice. Therefore, the scheme of the static resource and semi-static resource combined scheduling of the network slice improves the resource utilization rate and improves the rationality of wireless resource allocation.

S203, the communication device determines the bandwidth of the dynamic resource.

Wherein, the dynamic resource refers to the residual resource which is not allocated to any network slice in the system. In one possible design, the communication device may allocate radio resources for the network slice on dynamic resources according to the actual requirements of the network slice. In another possible design, the communications apparatus may also allocate radio resources for the network slice on the dynamic resources according to a priority of the network slice. Therefore, the scheme provided by the embodiment of the application can further meet more wireless resource requirements, and the reasonability of wireless resource allocation is further improved.

As shown in fig. 3, a diagram of a result of the foregoing method for allocating radio resources according to the embodiment of the present application is provided. The communication device allocates static resources and semi-static resources for each of the n network slices, respectively. The communication device can carry out combined scheduling on the basis of the static resources and the semi-static resources of the network slices, meet different bandwidth requirements of the network slices, and improve the reasonability of wireless resource allocation. And the communication device takes the residual resources which are not allocated to the network slice in the system as dynamic resources so as to meet more wireless resource requirements and further improve the rationality of wireless resource allocation.

Optionally, based on the embodiment shown in fig. 2, as shown in fig. 4, step S201 may be specifically implemented as: steps S201a-S201 c.

S201a, the communications device determines a first uplink bandwidth of the network slice, where the first uplink bandwidth is an average bandwidth of uplink resources used by uplink traffic of the network slice in a historical time period.

The history time period may be a time period before the time when the communication apparatus executes step S201a, which is the cut-off point. The time length of the history time period may be set according to actual demand, for example, the history time period may be set to 1 week or 2 weeks before the communication apparatus performs step S201 a. For example, the average bandwidth of the uplink resource used by the uplink traffic of the network slice in the historical time period may be the average bandwidth of the uplink resource used by the uplink traffic of the network slice in 1 week before the step S201a is executed, or may also be the average bandwidth of the uplink resource used by the uplink traffic of the network slice in 2 weeks before the step S201a is executed.

It should be noted that before the communication apparatus performs step S201a, the communication apparatus may send a request message to the base station to obtain the resource usage of the network slice in the historical time period.

Alternatively, the communication device may store the resource usage of the network slice in the historical time period in advance in the memory, and then directly acquire the resource usage of the network slice in the historical time period from the memory.

Optionally, the unit of the first uplink bandwidth of the network slice may be kilohertz (khz), or may also be a frequency unit, such as a Physical Resource Block (PRB), M_prbFor indicating the bandwidth of a single physical resource block. The selection can be made by those skilled in the art according to the actual requirement, and the application is not limited to this.

S201b, the communications device determines a first downlink bandwidth of the network slice, where the first downlink bandwidth is an average bandwidth of downlink resources used by downlink traffic of the network slice in a historical time period.

The history time period may be a time period before the time when the communication apparatus executes step S201a, which is the cut-off point. The time length of the history time period may be set according to actual needs, for example, the history time period may be set to 1 week or two weeks before the communication apparatus performs step S201 a. For example, the average bandwidth of the uplink resource used by the downlink traffic of the network slice in the historical time period may be the average bandwidth of the downlink resource used by the downlink traffic of the network slice in 1 week before the step S201a is executed, or may also be the average bandwidth of the downlink resource used by the downlink traffic of the network slice in 2 weeks before the step S201a is executed.

Alternatively, the communication device may also store in advance in the memory the resource usage of the network slice during the historical time period; the communication device then retrieves the resource usage of the network slice over the historical time period directly from the memory.

Optionally, the unit of the first downlink bandwidth of the network slice may be kilohertz (khz), or may also be a frequency unit, such as a Physical Resource Block (PRB), M_prbFor indicating the bandwidth of a single physical resource block. The selection can be made by those skilled in the art according to the actual requirement, and the application is not limited to this.

S201c, the communication device determines the bandwidth of the static resource according to the first uplink bandwidth and the first downlink bandwidth.

As a possible implementation, the communication device may determine a maximum value of the first uplink bandwidth and the first downlink bandwidth as the bandwidth of the static resource. For example, the communication device may be in accordance with formula R_sm＝max{R_smUL，R_smDLAnd determining the bandwidth of the static resource. Wherein R is_smFor static resource bandwidth, max is a function of the maximum value, R_smULFor the first uplink bandwidth, R_smDLIs the first downlink bandwidth.

As another possible implementation, the communication device may further determine an average value of the first uplink bandwidth and the first downlink bandwidth as the bandwidth of the static resource. For example, the communication device may be in accordance with formula R_sm＝avg{R_smUL，R_smDLAnd determining the bandwidth of the static resource. Where avg represents the averaging function.

It is to be understood that, as another possible implementation manner, the communication device may further perform a weight calculation process on the first uplink bandwidth and the first downlink bandwidth to determine the bandwidth of the static resource, which is not limited in this application.

Optionally, based on the embodiment shown in fig. 2, as shown in fig. 5, step S202 may be specifically implemented as: steps S202a-S202 c.

S202a, the communications device determines a second uplink bandwidth of the network slice, where the second uplink bandwidth is a bandwidth of an uplink resource expected to be needed by the network slice.

And the bandwidth of the uplink resource expected to be needed by the network slice is used for determining the sum of the bandwidth of the static resource and the bandwidth of the semi-static resource of the network slice.

As a possible implementation, the communication device may determine the second upstream bandwidth of the network slice according to the first formula.

The first formula is:

wherein R is_ssmUL′＝R_smUL×N_EUL；R_ssUL′＝∑R_ssmUL′；R_ssmULIs a second uplink bandwidth; r_ssmUL' is a predicted value of the second upstream bandwidth; r_smULIs a first uplink bandwidth; n is a radical of_EULThe uplink estimation coefficient is used for estimating the bandwidth of the uplink resource expected to be needed by the network slice in the busy hour period; r_ssULThe sum of the estimated values of the second uplink bandwidths of all the network slices in the system is used for indicating the bandwidth of uplink resources expected to be needed by all the network slices in the system during the busy hour period; and R is the system bandwidth.

It should be noted that the uplink prediction coefficient may be a coefficient related to the traffic volume of the uplink traffic. Exemplary, N_EULUpstream traffic that can be sliced for a network at historical timesThe ratio of the average value of the traffic in the busy hour period in the period to the average value of the traffic in the whole period. In one possible design, the communication device may be based on formula N_EUL＝E_{BDLm busy hour}/E_{BDLm total}Determining the value of the uplink estimation coefficient, wherein E_{BDLm busy hour}Average value of traffic volume of uplink traffic of network slice in busy hour period in historical time period, E_{BDLm total}The average value of the total time interval traffic of the uplink traffic of the network slice in the historical time period.

The history time period may be a time period before the time when the communication device executes step S202a, which is the cut-off point. The time length of the history time period may be set according to actual needs, for example, the history time period may be set to 1 week or two weeks before the communication apparatus performs step S202 a.

The historical time period may include a plurality of time windows, which may be 1 day, i.e., 24 hours in length. The busy hour period may be one or more hours within each time window. For example, the busy hour period may be determined according to the traffic volume of the network slice in the whole period of the historical time period, for example, the busy hour period may be determined according to the traffic volume historical data of the network slice. Assuming that the average of the uplink traffic volume per hour of 19:00 to 23:00 per day is high, 19:00 to 23:00 per day may be set as the busy hour period. Or the busy hour period can be determined according to the fact that the traffic of the network slice meets the preset condition. For example: and setting the time interval when the traffic of the network slice is greater than the preset threshold value as a busy hour time interval.

As a possible implementation, the communication device may obtain a sum of the traffic volume of the uplink traffic of the network slice per hour in the historical time period. The communication device calculates an average value of the total hourly traffic volume in the historical time period so as to obtain the average value of the total hourly traffic volume of the uplink traffic of the network slice in the historical time period. The communication device calculates an average value of the sum of the traffic volume of each hour in the busy hour period in the historical time period so as to obtain the average value of the traffic volume of the uplink traffic of the network slice in the busy hour period in the historical time period.

Alternatively, the communication device may also obtain the sum of the traffic volume of the uplink traffic of the network slice every half hour in the historical time period. The communication device calculates the average value of the total traffic volume of the uplink traffic of the network slice in the historical time period by calculating the average value of the total traffic volume of every half hour in the historical time period. The communication device calculates an average value of the sum of the traffic volume of every half hour of the busy hour period in the historical time period so as to obtain the average value of the traffic volume of the uplink traffic of the network slice in the busy hour period in the historical time period.

It should be noted that the specific position of the busy hour period in the time window may be determined according to the resource usage of the network slice. The resource usage of the network slice is different for different service models. Thus, the specific location of the busy hour period within the time window corresponds to a traffic model. Thus, N_EULIs also associated with a business model, different business models N_EULHave different values.

S202b, the communications device determines a second downlink bandwidth of the network slice, where the second downlink bandwidth is a bandwidth of a downlink resource expected to be needed by the network slice.

And the bandwidth of the downlink resource expected to be needed by the network slice is used for determining the sum of the bandwidth of the static resource and the bandwidth of the semi-static resource of the network slice.

As a possible implementation, the communication device may determine the second downlink bandwidth of the network slice according to a second formula.

The second formula is:

wherein R is_ssBDL′＝R_smDL×N_EDL；R_ssDL′＝∑R_ssmDL′；R_ssmDLIs a second downlink bandwidth; r_ssmDL' is an estimated value of the second downlink bandwidth; r_smDLIs a first downlink bandwidth; n is a radical of_EDLIs a downlink estimation coefficient used for estimating the expected requirement of the network slice in the busy hour periodA bandwidth of the line resource; r_ssDLThe sum of the estimated values of the second downlink bandwidths of all the network slices in the system is used for indicating the bandwidth of downlink resources expected to be needed by all the network slices in the system during the busy hour period; and R is the system bandwidth.

It should be noted that the downlink prediction coefficient may be a coefficient related to the traffic volume of the downlink traffic. Exemplary, N_EDLThe ratio of the average traffic of the downlink traffic of the network slice in the busy hour period in the historical time period to the average traffic of the whole time period can be obtained. In one possible design, the communication device may be based on formula N_EDL＝E_{BDLm busy hour}/E_{BDLm total}Determining the value of the downlink estimation coefficient, wherein E_{B DLm busy hour}Mean value of traffic volume of network sliced downlink traffic in busy hour period in historical time period, E_{BDLm total}The average value of the traffic of the downlink traffic of the network slice in the whole period of the historical time.

The historical time period may include a plurality of time windows, which may be 1 day, i.e., 24 hours in length. The busy hour period may be one or more hours within each time window. For example, the busy hour period may be determined according to the traffic volume of the network slice in the whole period of the historical time period, for example, the busy hour period may be determined according to the traffic volume historical data of the network slice. Assuming that the average of the downlink traffic volume per hour of 19:00 to 23:00 per day is high, 19:00 to 23:00 per day may be set as the busy hour period. Or the busy hour period can be determined according to the fact that the traffic of the network slice meets the preset condition. For example: and setting the time interval when the traffic of the network slice is greater than the preset threshold value as a busy hour time interval.

As a possible implementation, the communication device may obtain a sum of traffic volumes per hour of downlink traffic of the network slice in a historical time period. The communication device calculates an average value of the total hourly traffic of the whole period in the historical time period to obtain the average value of the total hourly traffic of the downlink traffic of the network slice in the historical time period. The communication device calculates an average value of the sum of the traffic volume of each hour in the busy hour period in the historical time period so as to obtain the average value of the traffic volume of the downlink traffic of the network slice in the busy hour period in the historical time period.

Or, the communication device can also acquire the sum of the traffic volume of the downlink traffic of the network slice in each half hour in the historical time period. The communication device calculates the average value of the total traffic volume of every half hour in the whole period of the historical time period so as to obtain the average value of the total traffic volume of the downlink traffic of the network slice in the historical time period. The communication device calculates an average value of the total traffic volume of every half hour of the busy hour period in the historical time period so as to obtain the average value of the traffic volume of the downlink traffic of the network slice in the busy hour period in the historical time period.

It should be noted that the specific position of the busy hour period in the time window may be determined according to the resource usage of the network slice. For different service models, the resource usage of the network slice is different, and therefore, the specific position corresponding to the busy hour period in the time window is related to the service model. Thus, N_EDLIs also associated with a business model, different business models N_EDLHave different values.

S202c, the communication device determines the bandwidth of the semi-static resource according to the second uplink bandwidth, the second downlink bandwidth, and the bandwidth of the static resource.

As a possible implementation manner, the communication device may determine the bandwidth expected to be required by the network slice according to the second uplink bandwidth and the second downlink bandwidth; and determining the bandwidth of the semi-static resource according to the bandwidth expected to be needed by the network slice and the bandwidth of the static resource.

In one possible design, the bandwidth expected to be required by the network slice may be the maximum of the second upstream bandwidth and the second downstream bandwidth. Alternatively, the bandwidth expected to be required by the network slice may also be an average of the second upstream bandwidth and the second downstream bandwidth. Alternatively, the communication device may perform a weight calculation process on the first uplink bandwidth and the first downlink bandwidth to determine the bandwidth expected to be required by the network slice, which is not limited in this application.

Illustratively, the communication device may be according to the formula R_ssm＝max{R_ssmUL，R_ssmDL}-R_smAnd determining the bandwidth of the semi-static resource, wherein max represents a function of taking the maximum value.

As yet another example, the communication device may also be based on the formula R_ssm＝avg{R_ssmUL，R_ssmDL}-R_smAnd determining the bandwidth of the semi-static resource, wherein avg represents an averaging function.

Optionally, based on the embodiment shown in fig. 2, as shown in fig. 6, another method for allocating radio resources provided in the embodiment of the present application includes:

s301, the communication device determines the bandwidth occupancy rate of the network slice.

The bandwidth occupancy rate is the ratio of the bandwidth of the used resource of the network slice to the bandwidth of the static resource of the network slice.

For example, the bandwidth of the used resource of the network slice may be the maximum of the bandwidth of the used resource at all time slots in the last T2 period.

For example, the communication device may be in accordance with formula O_m＝max{O_m1，O_m2，……，O_m1，……，O_mpAnd determining the bandwidth of the used resources of the network slice, wherein p is the number of time slots in the last T2 period.

Alternatively, the bandwidth of the used resource of the network slice may be an average of the bandwidths of the used resources at all the time slots in the last period T2. For example, the communication device may be in accordance with formula O_m＝avg{O_m1，O_m2，……，O_m1，……，O_mpDetermine bandwidth of used resources of the network slice.

It should be noted that, before the communication apparatus performs step S301, the communication apparatus may send a request message to the base station to obtain the bandwidth of the static resource and the bandwidth of the semi-static resource of the network slice in the current period.

Alternatively, the communication device may also determine the bandwidth of the static resource and the bandwidth of the semi-static resource of the network slice in the current period according to S201 and S202.

Alternatively, the communication device may also store the bandwidth of the static resource and the bandwidth of the semi-static resource of the network slice in the current period in the memory in advance, and then directly acquire the bandwidth of the static resource and the bandwidth of the semi-static resource of the network slice in the current period from the memory.

S302, under the condition that the bandwidth occupancy rate is less than or equal to the preset threshold value, determining a first bandwidth according to the bandwidth of the static resource, the bandwidth of the semi-static resource and the bandwidth occupancy rate, wherein the first bandwidth is the bandwidth of the unused resource in the static resource and the semi-static resource.

Since the bandwidth occupancy is a ratio of the bandwidth of the used resource of the network slice to the bandwidth of the static resource of the network slice, the bandwidth occupancy may also represent a proportion of the unused resource in the static resource and the semi-static resource, that is, the smaller the value of the bandwidth occupancy, the larger the proportion of the unused resource in the static resource and the semi-static resource. Therefore, under the condition that the bandwidth occupancy rate is less than or equal to the preset threshold, the bandwidth of the unused resource in the static resource and the semi-static resource meets the preset condition. The communication device can release the wireless resources corresponding to the bandwidth of the unused resources in the static resources and the semi-static resources, and realize the reallocation of the unused resources in the semi-static resources, thereby meeting the requirements of more wireless resources and improving the utilization rate of the wireless resources. The preset threshold may be a bandwidth occupancy threshold C_m，0<C_m≤1。

As one possible implementation, the communication device may determine the bandwidth of the used resource of the network slice according to the bandwidth and the bandwidth occupancy of the static resource, and after determining the bandwidth of the used resource of the network slice, the communication device may determine the first bandwidth according to the bandwidth of the static resource, the bandwidth of the semi-static resource, and the bandwidth of the used resource.

Illustratively, the communication device may be according to formula Y_m＝R_sm×O_m×α_mDetermining bandwidth of used resources of the network slice, and according to formula Z_m＝R_sm+R_ssm-Y_mThe first bandwidth is determined. Wherein, Y_mBandwidth of used resources, R, sliced for a network_smBandwidth for static resources, O_mFor bandwidth occupancy, α_mEstimating the coefficient, α, for the bandwidth_m≥1，Z_mIs a first bandwidth.

In addition, α is_mFor estimating the bandwidth of the used resources of the network slice. Alpha is alpha_mThe value of (a) is related to the peak-to-average ratio of resource occupation in the service model, and the higher the peak-to-average ratio of resource occupation in the service model is, the higher the alpha value is_mThe smaller. Different service models have different peak-to-average ratios of resource occupancy.

And S303, releasing the semi-static resource when the first bandwidth is larger than or equal to the bandwidth of the semi-static resource.

In the case where the first bandwidth is greater than or equal to the bandwidth of the semi-static resource, i.e. Z_m≥R_ssmAnd the bandwidth of the unused resource in the static resource and the semi-static resource is greater than or equal to the bandwidth of the semi-static resource. At this time, all the semi-static resources are not used, and the communication device may release all the semi-static resources of the network slice, that is, release the bandwidth R from the semi-static resources_ssmThe resource of (2). The communication device can reallocate the released semi-static resources, thereby meeting the requirements of more wireless resources and improving the utilization rate of the wireless resources.

S304, when the first bandwidth is smaller than the bandwidth of the semi-static resource, releasing the resource of the first bandwidth from the semi-static resource.

In the case where the first bandwidth is less than the bandwidth of the semi-static resource, i.e. Z_m<R_ssmAnd the bandwidth of the unused resource in the static resource and the semi-static resource is less than that of the semi-static resource. At this point, there are some semi-static resources unused and the communication device can release the network sliceI.e. the bandwidth released from the semi-static resources is the first bandwidth Z_mThe resource of (2). The communication device can reallocate the released semi-static resources, thereby meeting the requirements of more wireless resources and improving the utilization rate of the wireless resources.

It is to be understood that the radio resource may include a start position and a stop position, wherein the start position corresponds to a frequency that is less than a frequency corresponding to the stop position.

As a possible implementation manner, the communication device may determine a starting position of the resource of the first bandwidth as a starting position of the semi-static resource, and release the resource of the first bandwidth from the semi-static resource. As another possible implementation manner, the communication device may further determine an ending position of the resource of the first bandwidth as an ending position of the semi-static resource, and release the resource of the first bandwidth from the semi-static resource. As another possible implementation manner, the communication device may further determine an ending position of the resource of the first bandwidth as an arbitrary position between the starting position and the ending position of the semi-static resource, and release the resource of the first bandwidth from the semi-static resource, which is not limited in this application.

Based on the embodiment shown in fig. 6, as shown in fig. 7, a result diagram of a method for allocating radio resources according to the embodiment of the present application is provided. Illustratively, the communication device slices the network into m a first bandwidth Z_mCorresponding resource release such that the first bandwidth Z in the network slice m_mThe corresponding resource may be used by other network slices than network slice m. Therefore, the embodiments provided herein enable the reallocation of unused resources among semi-static resources of network slice m.

Optionally, as shown in fig. 8, a method for allocating radio resources according to an embodiment of the present invention includes:

s401, the communication device receives resource demand information sent by a terminal, wherein the resource demand information is used for indicating bandwidth demanded by the terminal of the first network slice.

The unit of the bandwidth required by the terminal may be kilohertz (khz), or may also be a frequency unit, such as Physical Resource Block (PRB), M_prbFor indicating the bandwidth of a single physical resource block. The selection can be made by those skilled in the art according to the actual requirement, and the application is not limited to this.

In some embodiments, the terminal of the first network slice may also be expressed as a terminal corresponding to the first network slice, and the first network slice may correspond to a plurality of terminals that implement network connection using the radio resource allocated for the first network slice.

S402, the communication device judges whether the bandwidth of the unused resource in the static resource of the first network slice is larger than or equal to the bandwidth required by the terminal.

If yes, executing S403; if not, go to S404.

And S403, if so, the communication device allocates resources for the terminal in the static resources of the first network slice.

For example, it is assumed that the bandwidth of the static resource of the first network slice is 20PRB, the bandwidth of the resource used in the static resource is 15PRB, the bandwidth of the resource unused in the static resource is 5PRB, and the bandwidth requirement of the terminal is 3 PRB. At this time, if the bandwidth of the unused resource in the static resources is greater than the terminal requirement, the communication device allocates the resource to the terminal in the static resources of the first network slice.

For another example, assume that the bandwidth of the static resource of the first network slice is 20PRB, the bandwidth of the resource used in the static resource is 18PRB, the bandwidth of the resource unused in the static resource is 2PRB, and the bandwidth requirement of the terminal is 3 PRB. At this time, if the bandwidth of the unused resource in the static resource is smaller than the terminal requirement, the communication apparatus executes step S404.

S404, if not, the communication device judges whether the bandwidth of the unused resource in the semi-static resource of the first network slice is larger than or equal to the bandwidth required by the terminal.

If yes, go to S405; if not, go to step S406.

And S405, if so, the communication device allocates resources for the terminal in the semi-static resources of the first network slice.

For example, it is assumed that the bandwidth of the semi-static resource of the first network slice is 15PRB, the bandwidth of the used resource in the semi-static resource is 10PRB, the bandwidth of the unused resource in the semi-static resource is 5PRB, and the bandwidth requirement of the terminal is 3 PRB. At this time, the bandwidth of the unused resource in the semi-static resources is greater than the bandwidth required by the terminal, and the communication device allocates the resource to the terminal in the semi-static resources of the first network slice.

For another example, assume that the bandwidth of the semi-static resource of the first network slice is 15PRB, the bandwidth of the used resource in the semi-static resource is 14PRB, the bandwidth of the unused resource in the semi-static resource is 1PRB, and the bandwidth requirement of the terminal is 3 PRB. At this time, if the bandwidth of the unused resource among the semi-static resources is smaller than the bandwidth required by the terminal, the communication apparatus performs step S406.

S406, if not, the communication device judges whether the bandwidth of the unused resource in the dynamic resource is larger than or equal to the bandwidth required by the terminal.

If yes, executing S407; if not, go to step S408.

S407, if so, the communication apparatus allocates resources to the terminal among the dynamic resources.

Based on the descriptions of S301 to S304 in the embodiment of the present application, the communication device may release all or part of the semi-static resources of the network slice to reallocate the released semi-static resources, thereby satisfying more wireless resource requirements and improving the utilization rate of the wireless resources. Because the first network slice is the network slice corresponding to the terminal, the communication device can preferentially analyze the released resources in the semi-static resources of the first network slice in the process of allocating the resources to the terminal by the dynamic resources. And under the condition that the released resources in the semi-static resources of the first network slice meet the bandwidth requirement of the terminal, the communication device allocates the resources to the terminal in the released resources in the semi-static resources of the first network slice according to the bandwidth requirement of the terminal.

It is understood that, during the process of allocating the resource for the terminal by the communication device through the dynamic resource, the communication device may further analyze the released resource in the semi-static resources of other network slices besides the first network slice. And under the condition that the released resources in the semi-static resources of the other network slices except the first network slice meet the bandwidth requirement of the terminal, the communication device allocates the resources to the terminal in the released resources in the semi-static resources of the other network slices except the first network slice according to the bandwidth requirement of the terminal. Therefore, the full utilization of wireless resources is realized, and the utilization rate of the wireless resources is further improved.

For example, it is assumed that the bandwidth of the dynamic resource is 30PRB, the bandwidth of the resource used in the dynamic resource is 20PRB, the bandwidth of the resource unused in the dynamic resource is 10PRB, and the bandwidth requirement of the terminal is 3 PRB. In this case, the bandwidth of the unused resource in the dynamic resource is larger than the bandwidth required by the terminal, and the communication device allocates the resource to the terminal in the dynamic resource.

For another example, assume that the bandwidth of the dynamic resource is 30PRB, the bandwidth of the resource used in the dynamic resource is 28PRB, the bandwidth of the resource unused in the dynamic resource is 2PRB, and the bandwidth requirement of the terminal is 3 PRB. At this time, if the bandwidth of the unused resource among the dynamic resources is smaller than the bandwidth required by the terminal, the communication device performs step S408.

S408, the communication device allocates resources to the terminal after the other terminal releases the resources.

And under the condition that the static resources, the semi-static resources and the dynamic resources of the first network slice do not meet the bandwidth requirement of the terminal, the terminal enters a waiting queue. After the other terminals release the resources, the communication apparatus allocates the resources to the terminals. The other terminal may be a terminal corresponding to the first network slice, or the other terminal may also be a terminal corresponding to another network slice except the first network slice, which is not limited herein.

As a possible implementation manner, the communication device may determine the sequence of the terminal in the queue sequence of the waiting queue according to the service priority of the terminal, so that the communication device may allocate resources to the terminal according to the sequence in the waiting queue. For example, the communication apparatus may preferentially allocate resources to the terminal that is in the wait queue in the first order.

As another possible implementation manner, the communication device may determine the sequence of the terminal in the queue sequence in the waiting queue according to the sending time of the resource requirement information of the terminal, so that the communication device may allocate the resource to the terminal according to the sequence in the waiting queue. For example, the communication apparatus may preferentially allocate resources to the terminal that is in the wait queue in the first order.

Based on the embodiment shown in fig. 8, as shown in fig. 7, it is assumed that the communication device receives the resource requirement information transmitted by the terminal corresponding to the network slice 2. The communication device determines whether or not the bandwidth of an unused resource among the static resources of the network slice 2 is greater than or equal to the bandwidth required by the terminal. If so, the communication device allocates resources to the terminal among the static resources of network slice 2. If not, the communication device judges whether the bandwidth of the unused resource in the semi-static resources of the network slice 2 is larger than or equal to the bandwidth required by the terminal. If so, the communication device allocates resources for the terminal in the semi-static resources of network slice 2. If not, the communication device judges whether the bandwidth of the unused resource in the dynamic resource is larger than or equal to the bandwidth required by the terminal. If so, the communication device allocates resources to the terminal in the dynamic resources. If not, the communication device allocates the resources for the terminal after the other terminals release the resources.

Illustratively, as shown in FIG. 7, Z_mThe corresponding resource is a resource released from the semi-static resource of the network slice m. At Z_mIn the case where the bandwidth of the corresponding resource satisfies the bandwidth required by the terminal corresponding to the network slice 2, the communication apparatus may perform the operation in Z_mAnd allocating resources for the terminal corresponding to the network slice 2 in the corresponding resources. Therefore, the technical scheme provided by the application releases all or part of unused resources in the semi-static resources of the network slice and provides the unused resources to other terminals with resource requirements, so that the unused resources in the semi-static resources are reallocated, more wireless resource requirements are met, and the utilization rate of the wireless resources and the reasonability of wireless resource allocation are improved.

It can be seen that the technical solutions provided in the embodiments of the present application are mainly introduced from the perspective of methods. 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 communication apparatus may be divided into the functional modules according to the method example, for example, each functional module may be divided according 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. 9 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device includes: a processing module 502.

A processing module 502, configured to determine a bandwidth occupancy rate of a network slice, where the bandwidth occupancy rate is a ratio of a bandwidth of a used resource of the network slice to a bandwidth of a static resource of the network slice; under the condition that the bandwidth occupancy rate of the network slice is less than or equal to a preset threshold value, determining a first bandwidth according to the bandwidth of the static resource, the bandwidth of the semi-static resource and the bandwidth occupancy rate, wherein the first bandwidth is the bandwidth of the unused resource in the static resource and the semi-static resource; releasing the semi-static resource when the first bandwidth is larger than or equal to the bandwidth of the semi-static resource; and releasing the resources of the first bandwidth from the semi-static resources in the case that the first bandwidth is smaller than the bandwidth of the semi-static resources.

In one possible design, the processing module 502 is specifically configured to determine the bandwidth of the used resource of the network slice according to the bandwidth and the bandwidth occupancy of the static resource; and determining the first bandwidth according to the bandwidth of the static resource, the bandwidth of the semi-static resource and the bandwidth of the used resource.

In one possible design, the processing module 502 is further configured to determine a first uplink bandwidth of the network slice, where the first uplink bandwidth is an average bandwidth of uplink resources used by an uplink service of the network slice in a historical time period; determining a first downlink bandwidth of the network slice, wherein the first downlink bandwidth is an average bandwidth of downlink resources used by downlink services of the network slice in a historical time period; and determining the bandwidth of the static resource according to the first uplink bandwidth and the first downlink bandwidth.

In one possible design, the processing module 502 is further configured to determine a second uplink bandwidth and a second downlink bandwidth of the network slice, where the second uplink bandwidth is a bandwidth of an uplink resource expected to be needed by the network slice, and the second downlink bandwidth is a bandwidth of a downlink resource expected to be needed by the network slice; and determining the bandwidth of the semi-static resource according to the second uplink bandwidth, the second downlink bandwidth and the bandwidth of the static resource.

In one possible design, the processing module 502 is specifically configured to determine a second uplink bandwidth of the network slice according to a first formula; determining a second downlink bandwidth of the network slice according to a second formula; the first formula is:

The second formula is:

In one possible design, the processing module 502 is specifically configured to perform the following operation according to the formula R_ssm＝max{R_ssmUL，R_ssmDL}-R_smDetermining the bandwidth of the semi-static resource; wherein R is_ssmRepresenting bandwidth of semi-static resources, R_smIs the bandwidth of the static resource.

In one possible design, the processing module 502 is further configured to, in a case that the released resources in the semi-static resources of the network slice meet the bandwidth requirement of the terminal, allocate resources to the terminal in the released resources according to the bandwidth requirement of the terminal.

Optionally, the communication apparatus may further include a communication module 501, and the communication module 501 is used for the communication apparatus to communicate with other devices or networks. For example, the communication device may interact with a base station through the communication module 501.

Optionally, the communication device may further comprise a storage module for storing program code and/or data of the communication device.

The processing module 502 may be a processor or a controller, among others. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. A processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, a DSP and a microprocessor, or the like. The communication module 501 may be a transceiver circuit or a communication interface, etc. The storage module may be a memory. When the processing module 502 is a processor, the communication module 501 is a communication interface, and the storage module is a memory, the communication device according to the embodiment of the present application may be the communication device shown in fig. 1.

In still another embodiment of the present application, there is provided a communication apparatus, which may include: a processor and a memory; the memory is used for storing computer execution instructions, and when the communication device runs, the processor executes the computer execution instructions stored by the memory, so that the communication device executes the communication method provided by the embodiment.

Through the description of the above 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 foregoing function distribution may be completed by different functional modules according to needs, that is, the internal structure of the network node is divided into different functional modules to complete all or part of the above described functions. For the specific working processes of the system, the module and the network node 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 of any of the embodiments described above or a memory. 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.

The embodiments of the present application also provide a computer program product, which contains a computer program, when the computer program product runs on a computer, the computer is caused to execute the steps of the allocation method of radio resources in the above embodiments.

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

1. A method for allocating radio resources, the method comprising:

determining the bandwidth occupancy rate of a network slice, wherein the bandwidth occupancy rate is the ratio of the bandwidth of used resources to the bandwidth of static resources of the network slice;

under the condition that the bandwidth occupancy rate of the network slice is less than or equal to a preset threshold value, determining a first bandwidth according to the bandwidth of the static resource, the bandwidth of a semi-static resource and the bandwidth occupancy rate, wherein the first bandwidth is the bandwidth of an unused resource in the static resource and the semi-static resource;

releasing the semi-static resource if the first bandwidth is greater than or equal to the bandwidth of the semi-static resource;

releasing the resources of the first bandwidth from the semi-static resources if the first bandwidth is less than the bandwidth of the semi-static resources.

2. The method of claim 1, wherein the determining a first bandwidth according to the bandwidth of the static resource, the bandwidth of the semi-static resource, and the bandwidth occupancy comprises:

determining the bandwidth of the used resource of the network slice according to the bandwidth of the static resource and the bandwidth occupancy rate;

and determining a first bandwidth according to the bandwidth of the static resource, the bandwidth of the semi-static resource and the bandwidth of the used resource.

3. The method of claim 1, further comprising:

determining a first uplink bandwidth of the network slice, wherein the first uplink bandwidth is an average bandwidth of uplink resources used by uplink services of the network slice in a historical time period;

determining a first downlink bandwidth of the network slice, wherein the first downlink bandwidth is an average bandwidth of downlink resources used by downlink services of the network slice in a historical time period;

and determining the bandwidth of the static resource according to the first uplink bandwidth and the first downlink bandwidth.

4. The method of claim 3, further comprising:

determining a second uplink bandwidth and a second downlink bandwidth of the network slice, wherein the second uplink bandwidth is a bandwidth of an uplink resource expected to be needed by the network slice, and the second downlink bandwidth is a bandwidth of a downlink resource expected to be needed by the network slice;

and determining the bandwidth of the semi-static resource according to the second uplink bandwidth, the second downlink bandwidth and the bandwidth of the static resource.

5. The method of claim 4, wherein determining a second upstream bandwidth and a second downstream bandwidth of the network slice comprises:

determining a second uplink bandwidth of the network slice according to a first formula;

determining a second downlink bandwidth of the network slice according to a second formula;

the first formula is:

wherein R is_ssmuL′＝R_smUL×N_E；R_ssUL′＝∑R_ssmUL′；R_ssmULIs a second uplink bandwidth; r_ssmUL' is a predicted value of the second upstream bandwidth; r_smULIs a first uplink bandwidth; n is a radical of_EThe uplink estimation coefficient is used for estimating the bandwidth of the uplink resource expected to be needed by the network slice in the busy hour period; r_ssULThe sum of the estimated values of the second uplink bandwidths of all the network slices in the system is used for indicating the bandwidth of uplink resources expected to be needed by all the network slices in the system during the busy hour period; r is the system bandwidth;

the second formula is:

wherein R is_ssmDL′＝R_smDL×N_E；R_ssDL′＝∑R_ssmDL′；R_ssmDLIs a second downlink bandwidth; r_ssmDL' is an estimated value of the second downlink bandwidth; r_smDLIs a first downlink bandwidth; n is a radical of_EThe downlink estimation coefficient is used for estimating the bandwidth of downlink resources expected to be needed by the network slice in a busy hour period; r_ssDLThe sum of the estimated values of the second downlink bandwidths of all the network slices in the system is used for indicating the bandwidth of downlink resources expected to be needed by all the network slices in the system during the busy hour period; and R is the system bandwidth.

6. The method of claim 5, wherein determining the bandwidth of the semi-static resource according to the second uplink bandwidth, the second downlink bandwidth, and the bandwidth of the static resource comprises:

according to the formula R_ssm＝max{R_ssmUL，R_ssmDL}-R_smDetermining the bandwidth of the semi-static resource; wherein R is_ssmRepresenting the bandwidth, R, of said semi-static resource_smIs the bandwidth of the static resource.

7. The method according to any of claims 1 to 6, wherein after said releasing said semi-static resources or after releasing said resources of said first bandwidth from said semi-static resources, said method further comprises:

and under the condition that the released resources in the semi-static resources of the network slice meet the bandwidth requirement of the terminal, distributing the resources for the terminal in the released resources according to the bandwidth requirement of the terminal.

8. A communication apparatus, characterized in that the communication apparatus comprises: a processing module;

the processing module is configured to determine a bandwidth occupancy rate of a network slice, where the bandwidth occupancy rate is a ratio of a bandwidth of a used resource of the network slice to a bandwidth of a static resource; under the condition that the bandwidth occupancy rate of the network slice is less than or equal to a preset threshold value, determining a first bandwidth according to the bandwidth of the static resource, the bandwidth of a semi-static resource and the bandwidth occupancy rate, wherein the first bandwidth is the bandwidth of an unused resource in the static resource and the semi-static resource; releasing the semi-static resource if the first bandwidth is greater than or equal to the bandwidth of the semi-static resource; releasing the resources of the first bandwidth from the semi-static resources if the first bandwidth is less than the bandwidth of the semi-static resources.

9. A communication apparatus comprising a processor configured to perform the method for allocating radio resources according to any one of claims 1 to 7.

10. A computer-readable storage medium having stored thereon computer instructions which, when executed, implement the method of any one of claims 1-7.