CN114339773A - Fair 4G and 5G network dynamic frequency allocation method - Google Patents

Abstract

The invention discloses a fair 4G and 5G network dynamic frequency allocation method, which comprises the following steps: step 1, starting or initializing a 4G and 5G frequency dynamic sharing base station system, wherein the base station system performs initial allocation on wireless resources; step 2, after the 4G and 5G frequency dynamic sharing base station operates for a period of time, the base station system dynamically allocates part of wireless resources based on the historical throughput of the ultra-reliable and low-delay communication service, combines the network bearing capacity and the wireless resource utilization rate, and dynamically allocates the rest wireless resources of the system in proportion based on the historical throughput conditions of the 4G and 5G networks to realize the reallocation of all the wireless resources; and 3, after the base station is dynamically shared by the 4G and 5G frequencies at intervals, repeating the step 2 and continuously dynamically adjusting the wireless resources.

Description

Fair 4G and 5G network dynamic frequency allocation method

Technical Field

The invention relates to a network frequency allocation method, in particular to a fair 4G and 5G network dynamic frequency allocation method.

Background

With the implementation of a series of national major strategies such as network strengthening, manufacturing strengthening and the like, the deep integration of a new generation information technology represented by mobile internet, internet of things and cloud computing and the traditional industry, various industries put forward new requirements on frequency spectrum resources, and the problem of structural shortage of radio frequency spectrum resources in China is more prominent. With the large-scale deployment and wide application of the 5G mobile communication system, the demand of the mobile communication system on the frequency spectrum resources will be greatly increased in the future, so in the 5G era, a more advanced frequency spectrum resource management method is adopted, the frequency spectrum utilization rate is improved, and the contradiction between supply and demand is relieved.

(1) Overview of Spectrum sharing

The spectrum sharing has a plurality of classification modes, and can be divided into license-free spectrum sharing and authorized spectrum sharing based on a spectrum resource authorization mode; the method can be divided into static sharing and dynamic sharing based on a spectrum resource allocation mode; based on spectrum resource allocation behavior, coexistence sharing and non-cooperative sharing can be divided.

(2)4G/5G spectrum sharing technology

The 4G/5G spectrum sharing can be divided into two types of static spectrum sharing and dynamic spectrum sharing. Static spectrum sharing refers to dividing the spectrum into two sections with fixed misalignment, and allocating the two sections to be used by 4G (or LTE) and 5G (or NR), respectively. The dynamic spectrum sharing means that the LTE/NR can dynamically share frequency resources according to service requirements. There may be two ways of dynamic spectrum sharing, carrier level spectrum sharing and PRB/TTI level spectrum sharing.

Carrier-level spectrum sharing: the main advantages are no collision between LTE and NR channels and less interference; within the allocated bandwidth, the scheduling is not limited. The main disadvantages are that the LTE frequency spectrum resource is limited, and performance loss can be caused by allocating partial bandwidth for NR use; the resource scheduling is not flexible; limited bandwidth resources and limited capacity.

PRB/TTI level spectrum sharing: the main advantage is the full use of spectrum resources on demand. The main disadvantage is that there is a collision between LTE and NR channels, causing performance loss; to avoid interference, scheduling is limited, and the rate is limited; the requirements on the base station and the terminal are high.

(3) Dynamic spectrum sharing implementation technology

1) Cognitive radio

In non-cooperative, filling, interleaving, adjacent dynamic spectrum allocation and fragmented dynamic spectrum allocation sharing modes, a user is required to sense a wireless electromagnetic spectrum to determine an idle spectrum, and meanwhile, strong software and hardware reconfigurable capability is required to complete adjustment of radio parameters. The technology that can accomplish this is known as cognitive (cognitive) radio technology. The cognitive radio technology carries out spectrum sensing by receiving wireless electromagnetic information of a wireless electromagnetic environment, analyzes and predicts a spectrum use state to determine an idle spectrum, and further adaptively adjusts radio characteristic parameters such as power, frequency, modulation and coding to transmit wireless electromagnetic signals. Therefore, on the premise of not generating harmful interference to the master user, the utilization rate of the whole frequency spectrum is improved by utilizing the master user idle frequency spectrum.

2) Frequency spectrum pool

The spectrum pool is formed by gathering idle spectrums of different users through a spectrum management system. The user providing the idle frequency spectrum in the frequency spectrum pool system is the primary user, and the user applying and applying the frequency spectrum is the secondary user. The main user is mostly authorized spectrum user, its frequency spectrum is more, and the accessible is free to be leased and is given the secondary user and use and obtain certain profit, and secondary user self frequency spectrum is not enough, needs extra spectrum resource. The secondary users may be unauthorized spectrum users or authorized users without idle spectrum, and the spectrum pool system effectively allocates spectrum resources through a mobile market means. But a third-party spectrum management system is needed to manage the whole system.

The spectrum utilization effect can be better improved by combining multiple modes and implementation technologies of spectrum sharing, for example, the utilization rate of spectrum resources can be improved to a greater extent by setting private and public spectrum pools for each system, combining time division dynamic spectrum sharing and space division dynamic spectrum sharing, cognitive radio schemes based on the spectrum pools and the like.

When the 4G and 5G dynamic frequency sharing schemes are adopted, if a certain network (4G or 5G network) is busy in service, a large amount of wireless resources (frequency resources) must be occupied for a long time, and when another network has a new service to initiate a wireless resource request, the wireless resources (frequency resources) are occupied, so that service cannot be obtained, and the fairness problem exists. In addition, for ultra-reliable and low-delay communication (urrllc) services introduced in a 5G network, requirements on network performance are mainly reflected in low-delay and high-reliability aspects. The bandwidth requirement is small, but the requirement on network performance is high, and the requirement on radio resources (frequency resources) needs to be guaranteed preferentially, while the radio resource (frequency resource) requirement of the urrllc service is rarely considered separately by the existing dynamic frequency sharing method.

When the 4G and 5G dynamic frequencies share frequency allocation, on one hand, a part of radio resources (frequency resources) need to be dynamically reserved so as to preferentially guarantee the bearing requirements of the urrllc service; on the other hand, it is necessary to dynamically allocate an idle radio resource (frequency resource) based on the historical system throughput of the 4G and 5G networks. Therefore, on one hand, the network bearing resource requirement of the uRLLC service is ensured; on the other hand, because the dynamic frequency allocation is carried out based on the actual service bearing resource requirements of the 4G and 5G networks, the utilization rate of wireless resources (frequency resources) of the 4G and 5G networks can be balanced to the greatest extent, and the requirements of fair access of the 4G and 5G networks are guaranteed.

Disclosure of Invention

The purpose of the invention is as follows: the technical problem to be solved by the present invention is to provide a fair dynamic frequency allocation method for 4G and 5G networks, aiming at the defects of the prior art.

In order to solve the technical problem, the invention discloses a fair 4G and 5G network dynamic frequency allocation method, which comprises the following steps:

step 1, starting or initializing a 4G and 5G frequency dynamic sharing base station system, wherein the base station system performs initial allocation on wireless resources;

step 2, after the 4G and 5G frequency dynamic sharing base station operates for a period of time, the base station system dynamically allocates part of wireless resources based on the historical throughput of the ultra-reliable and low-delay communication service, combines the network bearing capacity and the wireless resource utilization rate, and dynamically allocates the rest wireless resources of the system in proportion based on the historical throughput conditions of the 4G and 5G networks to realize the reallocation of all the wireless resources;

and 3, after the base station is dynamically shared by the 4G and 5G frequencies at intervals, repeating the step 2 and continuously dynamically adjusting the wireless resources.

The method for initially allocating the wireless resources in the step 1 of the invention comprises the following steps:

setting the total wireless resource quantity of the 4G and 5G frequency dynamic sharing base station system as N, using RB as the representation, wherein RB is the resource block of the system, and performing dynamic wireless resource allocation according to the following steps:

RB_u＝CO_u*N (1)

RB_4G＝CO_4G*N (2)

RB_5G＝CO_5G*N (3)

wherein: setting the total wireless resource quantity of the 4G and 5G frequency dynamic sharing base station system as N, and adopting RB as the resource block of the system_uRadio resources, RB, allocated to ultra-reliable and low-delay communication services for an initial phase_4GRadio resources, RB, allocated to non-ultra-reliable and low-delay traffic in 4G networks for initial phase_5GRadio resources, CO, allocated to non-ultra-reliable and low-delay traffic in a 5G network for an initial phase_uRadio resource allocation coefficient, CO, for ultra-reliable and low-delay communication services_4GFor 4G radio resource allocation coefficient, CO_5GAnd allocating coefficients for the 5G wireless resources.

The step 2 of the invention comprises the following steps:

step 2-1, carrying out discretization processing on the throughput of the ultra-reliable and low-delay communication service in continuous time;

step 2-2, calculating equivalent throughput of non-ultra-reliable and low-delay communication services in the 4G network within the continuous time;

step 2-3, calculating equivalent throughput of non-ultra-reliable and low-delay communication services in the 5G network in the continuous time;

step 2-4, calculating the dynamic wireless resource distribution coefficients of the non-ultra-reliable and low-delay communication services in the 4G and 5G networks;

and 2-5, calculating the dynamic wireless resource allocation quantity of the non-ultra-reliable and low-delay communication services in the 4G and 5G networks.

Step 2-1 of the invention the throughput TBS for ultra-reliable and low-delay communication services within a continuous time T_uPerforming discretization, and expressing the discretization by numerical value in unit time, so that the discretized TBS at the ith time_uCan be expressed as:

TBS_u-i，i∈[1,T]

in the continuous time T, the throughput per unit time TBS_u-iMaximum value of (D) is TBS_u-maxNamely:

TBS_u-max＝MAX(TBS_u-i) (5)

wherein, MAX () is a maximum value taking function;

in unit time, based on network bearing capacity RB_pNetwork bearer throughput is TBS_u-maxThe number of radio resources required for the service of (1) is RB_TBS-u-maxNamely:

RB_TBS-u-max＝TBS_u-max/RB_p (6)

wherein the network bearer capability RB_pMeans the throughput that a single RB can carry per unit time;

when the network operates stably, the utilization rate of the wireless resources is required to be less than U, and the U is the maximum wireless resource utilization rate allowed when the network operates stably; is ultraDynamic allocation of radio resources for reliable and low latency communication services as RBs_u-dThe calculation is performed according to the following equation (7):

RB_u-d＝RB_TBS-u-max/U (7)

wherein if RB_u-dSatisfies the following formula (8):

RB_u-d≤N*U (8)

the radio resource dynamically allocated by the base station for the ultra-reliable and low-delay communication service is RB_u-d；

If the above formula (8) is not satisfied, the radio resources dynamically allocated by the base station for the ultra-reliable and low-delay communication services are N × U, that is, RB_u-d＝N*U。

In step 2-2 of the invention, the equivalent throughput TBS of the non-ultra-reliable and low-delay communication service in the 4G network in the continuous time T is calculated_4G-dThe method comprises the following steps:

throughput TBS for non-ultra-reliable and low-delay traffic in 4G networks over a continuous time T_4GWhen the discretization process is performed and the value is expressed in a unit time, the discretized TBS is performed at the ith time_4GCan be expressed as: TBS_4G-i，i∈[1,T]；

TBS for each unit time of non-ultra-reliable and low-delay communication service in 4G network in continuous time T_4GHas an arithmetic mean of TBS_4G-avNamely:

by sigma_4GTo express TBS in each unit time_4GThe variance of (2) is calculated as follows:

then the equivalent throughput of non-ultra-reliable and low-delay traffic in the 4G network is TBS for the continuous time T_4G-dNamely:

TBS_4G-d＝TBS_4G-av-σ_4G (11)。

in step 2-3 of the invention, the equivalent throughput TBS of the non-ultra-reliable and low-delay communication service in the 5G network in the continuous time T is calculated_5G-dThe method comprises the following steps:

throughput TBS for non-ultra-reliable and low-delay traffic in a 5G network over a continuous time T_5GThe discretization process is performed and expressed by numerical values in unit time, that is: TBS_5G-i，i∈[1,T]；

TBS in each unit time of non-ultra-reliable and low-delay communication service in 5G network in time T_5GHas an arithmetic mean of TBS_5G-avNamely:

by sigma_5GTo express TBS in each unit time_5GThe variance of (2) is calculated as follows:

then the equivalent throughput of non-ultra-reliable and low-delay traffic in the 5G network is TBS during time T_5G-dNamely:

TBS_5G-d＝TBS_5G-av+σ_5G (14)。

in step 2-4 of the invention, calculating the dynamic wireless resource distribution coefficients of the non-ultra-reliable and low-delay communication services in the 4G and 5G networks, and respectively using CQ_4G-dAnd CO_5G-dIs shown, in which:

in steps 2-5 of the invention: calculating the number of dynamic radio resource allocations for non-ultra-reliable and low-delay traffic in a 4G network using RBs_u-4GIs represented as follows:

RB_u-4G＝CO_4G-d*(N-RB_u-d) (17)。

in steps 2-5 of the invention: calculating the number of dynamic radio resource allocations for non-ultra-reliable and low-delay traffic in a 5G network using RBs_u-5GIs represented as follows:

RB_u-5G＝CO_5G-d*(N-RB_u-d) (18)。

the ultra-reliable and low-delay communication service wireless resource distribution coefficient CO in step 1 of the invention_u4G radio resource distribution coefficient CO_4GAnd 5G radio resource allocation coefficient CO_5GSatisfies the following formula (4):

CO_u+CO_4G+CO_5G＝1 (4)

wherein, CO_4G、CO_5GAnd CO_uThe value of (A) is determined by the throughput ratio of the 4G and 5G and ultra-reliable and low-delay communication services of the whole network.

Has the advantages that: the method can dynamically distribute the frequency according to the actual bearing requirements of the 4G and 5G networks while ensuring the performance of the uRLLC service network, thereby ensuring the fair access requirements of the 4G and 5G networks.

Drawings

The foregoing and/or other advantages of the invention will become further apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.

FIG. 1 is a schematic flow diagram of the present invention.

Detailed Description

The fair dynamic frequency allocation method for the 4G and 5G networks can dynamically allocate the frequency according to the actual bearing requirements of the 4G and 5G networks while ensuring the performance of the uRLLC service network, and ensure the fair access requirements of the 4G and 5G networks.

(1) Principle of the scheme

In the 4G and 5G dynamic frequency sharing systems, firstly, based on the historical throughput condition of the uRLLC (ultra-reliable and low-delay communication) service, combining the network bearing capacity and the utilization rate of radio resources, and dynamically allocating partial radio resources (frequency resources) so as to ensure the radio resources required by the bearing of the uRLLC service; secondly, the rest wireless resources (frequency resources) of the system are allocated dynamically according to the proportion based on the historical throughput conditions of the 4G and 5G networks.

(2) Detailed description of the protocol

Assuming that the total number of radio resources (here, denoted by RB, which is the resource block of the system) of a certain 4G and 5G frequency dynamic shared base station system is N, as shown in fig. 1, dynamic radio resource allocation is performed according to the following steps.

Step 1: because the base station system does not have the historical throughput information of the 4G, 5G and uRLLC services in the starting or initialization stage of the base station system, the wireless resources are initially allocated according to the formulas (1), (2) and (3).

RB_u＝CO_u*N (1)

RB_4G＝CO_4G*N (2)

RB_5G＝CO_5G*N (3)

Wherein: RB (radio B)_uRadio resources, RB, allocated to uRLLC services for an initial phase_4GRadio resources, RB, allocated to non-uRLLC services in 4G networks for an initial phase_5GThe radio resources allocated to the non-urrllc service in the 5G network for the initial phase. CO 2_uAllocating coefficients, CO, for uRLLC service radio resources_4GAnd allocating coefficients for the 4G wireless resources. CO 2_5GAnd allocating coefficients for the 5G wireless resources, and meeting the requirement of the formula (4).

CO_u+CO_4G+CO_5G＝1 (4)

For CO_u、CO_4G、CO_5GThe value of (3) can be determined by network operation enterprises, and can also be determined based on the throughput ratio of the whole network 4G and 5G, uRLLC services.

Step 2: after the base station operates for a period of time T, RB needs to be carried according to the actual service bearing condition of the base station_u、RB_4G、RB_5GAnd dynamically adjusts (reallocates).

Step 2.1: for the convenience of calculation, the throughput TBS of the uRLLC service in continuous time T is needed_uDiscretization processing is performed, and the discretization processing is expressed by numerical values in unit time, namely: TBS_u-i，i∈[1,T]. Then in time T, each unit time TBS_uMaximum value of (D) is TBS_u-maxNamely:

TBS_u-max＝MAX(TBS_u-i) (5)

wherein, MAX () is a maximum value taking function.

In unit time, based on network bearing capacity RB_pNetwork bearer throughput is TBS_u-maxThe number of radio resources required for the service of (1) is RB_TBS-u-maxNamely:

RB_TBS-u-max＝TBS_u-max/RB_p(6)

wherein the network bearer capability RB_pMeaning the throughput that a single RB can carry per unit time.

Considering that the radio resource utilization rate is generally less than U (to ensure stable operation of the network, the radio resource utilization rate may be 60% in general, or may be set by a network operation enterprise according to actual conditions of the network), when the network operates stably, the radio resource planned to be dynamically allocated for the urrllc service is RB_u-dThe calculation can be made according to equation (7), i.e.:

RB_u-d＝RB_TBS-u-max/U (7)

here, if RB_u-dThe value of (c) satisfies the formula (8),

RB_u-d≤N*U (8)

the radio resource dynamically allocated by the base station for the uRLLC service is RB_u-dIf formula (8) is not satisfied, the radio resource actually dynamically allocated by the base station for the urrllc service is N × U, that is, RB_u-d＝N*U。

Step 2.2: calculating equivalent throughput TBS of non-uRLLC service in 4G network within time T_4G-d。

For non-in 4G network in continuous time TThroughput TBS for uRLLC service_4GThe discretization process is performed and expressed by numerical values in unit time, that is: TBS_4G-i，i∈[1,T]。

TBS in each unit time of non-uRLLC service in 4G network in time T_4GHas an arithmetic mean of TBS_4G-avNamely:

σ_4Gfor each unit time of TBS_4GThe variance of (c) can be calculated by the following formula.

Then the equivalent throughput of non-urlllc traffic in the 4G network is TBS during time T_4G-dI.e. by

TBS_4G-d＝TBS_4G-av-σ_4G (11)

Step 2.3: calculating equivalent throughput TBS of non-uRLLC service in 5G network in time T_5G-d。

Throughput TBS for non-uRLLC service in 5G network for continuous time T_5GThe discretization process is performed and expressed by numerical values in unit time, that is: TBS_5G-i，i∈[1,T]。

TBS in each unit time of non-uRLLC service in 5G network in time T_5GHas an arithmetic mean of TBS_5G-avNamely:

σ_5Gfor each unit time of TBS_5GThe variance of (c) can be calculated by the following formula.

Then the equivalent throughput of non-urlllc traffic in the 5G network is TBS during time T_5G-dI.e. by

TBS_5G-d＝TBS_5G-av+σ_5G (14)

Step 2.4: calculating the dynamic wireless resource distribution coefficients of non-uRLLC service in 4G and 5G networks, respectively using CO_4G-dAnd CO_5G-dAnd (4) showing. Wherein:

CO_4G-d＝TBS_4G-d/(TBS_4G-d+TBS_5G-d) (15)

CO_5G-d＝TBS_5G-d/(TBS_4G-d+TBS_5G-d) (16)

step 2.5: calculating the dynamic radio resource allocation quantity of the non-uRLLC service in the 4G and 5G networks, and respectively using RB_u-4GAnd RB_u-5GAnd (4) showing. Namely:

RB_u-4G＝CO_4G-d*(N-RB_u-d) (17)

RB_u-5G＝CO_5G-d*(N-RB_u-d) (18)

and step 3: after waiting a period of time T, step 2 is performed.

The present invention provides a fair 4G and 5G network dynamic frequency allocation method, and a method and a system for implementing the method, and the method and the system are many, and the above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and embellishments can be made without departing from the principle of the present invention, and these improvements and embellishments should also be regarded as the protection scope of the present invention. All the components not specified in the present embodiment can be realized by the prior art.

Claims (10)

1. A fair 4G and 5G network dynamic frequency allocation method is characterized by comprising the following steps:

step 1, starting or initializing a 4G and 5G frequency dynamic sharing base station system, wherein the base station system performs initial allocation on wireless resources;

step 2, after the 4G and 5G frequency dynamic sharing base station operates for a period of time, the base station system dynamically allocates part of wireless resources based on the historical throughput of the ultra-reliable and low-delay communication service, combines the network bearing capacity and the wireless resource utilization rate, and dynamically allocates the rest wireless resources of the system in proportion based on the historical throughput conditions of the 4G and 5G networks to realize the reallocation of all the wireless resources;

and 3, after the base station is dynamically shared by the 4G and 5G frequencies at intervals, repeating the step 2 and continuously dynamically adjusting the wireless resources.

2. A fair 4G and 5G network dynamic frequency allocation method as defined in claim 1, wherein the method for initially allocating radio resources in step 1 is as follows:

setting the total wireless resource quantity of the 4G and 5G frequency dynamic sharing base station system as N, using RB as the representation, wherein RB is the resource block of the system, and performing dynamic wireless resource allocation according to the following steps:

RB_u＝CO_u*N (1)

RB_4G＝CO_4G*N (2)

RB_5G＝CO_5G*N (3)

wherein: setting the total wireless resource quantity of the 4G and 5G frequency dynamic sharing base station system as N, and adopting RB as the resource block of the system_uRadio resources, RB, allocated to ultra-reliable and low-delay communication services for an initial phase_4GRadio resources, RB, allocated to non-ultra-reliable and low-delay traffic in 4G networks for initial phase_5GRadio resources, CO, allocated to non-ultra-reliable and low-delay traffic in a 5G network for an initial phase_uRadio resource allocation coefficient, CO, for ultra-reliable and low-delay communication services_4GFor 4G radio resource allocation coefficient, CO_5GAnd allocating coefficients for the 5G wireless resources.

3. A fair 4G and 5G network dynamic frequency allocation method as defined in claim 2 wherein step 2 comprises the steps of:

step 2-1, carrying out discretization processing on the throughput of the ultra-reliable and low-delay communication service in continuous time;

step 2-2, calculating equivalent throughput of non-ultra-reliable and low-delay communication services in the 4G network within the continuous time;

step 2-3, calculating equivalent throughput of non-ultra-reliable and low-delay communication services in the 5G network in the continuous time;

step 2-4, calculating the dynamic wireless resource distribution coefficients of the non-ultra-reliable and low-delay communication services in the 4G and 5G networks;

and 2-5, calculating the dynamic wireless resource allocation quantity of the non-ultra-reliable and low-delay communication services in the 4G and 5G networks.

4. A fair 4G and 5G network dynamic frequency allocation method as defined in claim 3 wherein in step 2-1 the throughput TBS for ultra-reliable and low-delay traffic in a continuous time T_uPerforming discretization, and expressing the discretization by numerical value in unit time, so that the discretized TBS at the ith time_uCan be expressed as:

TBS_u-i，i∈[1，T]

in the continuous time T, the throughput per unit time TBS_u-iMaximum value of (D) is TBS_u-maxNamely:

TBS_u-max＝MAX(TBS_u-i) (5)

wherein, MAX () is a maximum value taking function;

in unit time, based on network bearing capacity RB_pNetwork bearer throughput is TBS_u-maxThe number of radio resources required for the service of (1) is RB_TBS-u-maxNamely:

RB_TBs-u-max＝TBS_u-max/RB_p (6)

wherein the network bearer capability RB_pMeans the throughput that a single RB can carry per unit time;

when the network operates stably, the utilization rate of wireless resources is less than U, and U is the maximum allowed when the network operates stablyA radio resource utilization rate; the radio resource dynamically allocated for the ultra-reliable and low-delay communication service is RB_u-dThe calculation is performed according to the following equation (7):

RB_u-d＝RB_TBS-u-max/U (7)

wherein if RB_u-dSatisfies the following formula (8):

RB_u-d≤N*U (8)

the radio resource dynamically allocated by the base station for the ultra-reliable and low-delay communication service is RB_u-d；

If the above formula (8) is not satisfied, the radio resources dynamically allocated by the base station for the ultra-reliable and low-delay communication services are N × U, that is, RB_u-d＝N*U。

5. A fair 4G and 5G network dynamic frequency allocation method as defined in claim 4 wherein in step 2-2, the equivalent throughput TBS of the non-super-reliable and low-delay traffic in the 4G network in the continuous time T is calculated_4G-dThe method comprises the following steps:

throughput TBS for non-ultra-reliable and low-delay traffic in 4G networks over a continuous time T_4GWhen the discretization process is performed and the value is expressed in a unit time, the discretized TBS is performed at the ith time_4GCan be expressed as: TBS_4G-i，i∈[1，T]；

TBS for each unit time of non-ultra-reliable and low-delay communication service in 4G network in continuous time T_4GHas an arithmetic mean of TBS_4G-avNamely:

by sigma_4GTo express TBS in each unit time_4GThe variance of (2) is calculated as follows:

then the equivalent throughput of non-ultra-reliable and low-delay traffic in the 4G network is TBS for the continuous time T_4G-dNamely:

TBS_4G-d＝TBS_4G-av-σ_4G (11)。

6. a fair 4G and 5G network dynamic frequency allocation method as defined in claim 5 wherein in step 2-3, the equivalent throughput TBS of the non-super reliable and low delay traffic in the 5G network in the continuous time T is calculated_5G-dThe method comprises the following steps:

throughput TBS for non-ultra-reliable and low-delay traffic in a 5G network over a continuous time T_5GThe discretization process is performed and expressed by numerical values in unit time, that is: TBS_5G-i，i∈[1，T]；

TBS in each unit time of non-ultra-reliable and low-delay communication service in 5G network in time T_5GHas an arithmetic mean of TBS_5G-avNamely:

by sigma_5GTo express TBS in each unit time_5GThe variance of (2) is calculated as follows:

then the equivalent throughput of non-ultra-reliable and low-delay traffic in the 5G network is TBS during time T_5G-dNamely:

TBS_5G-d＝TBS_5G-av+σ_5G (14)。

7. a fair 4G and 5G network dynamic frequency allocation method as defined in claim 6 wherein in steps 2-4, non-super reliable and low delay traffic in 4G and 5G networks is calculatedRespectively using CO_4G-dAnd CO_5G-dIs shown, in which:

8. a fair 4G and 5G network dynamic frequency allocation method as defined in claim 7, wherein in steps 2-5: calculating the number of dynamic radio resource allocations for non-ultra-reliable and low-delay traffic in a 4G network using RBs_u-4GIs represented as follows:

RB_u-4G＝CO_4G-d*(N-RB_u-d) (17)。

9. a fair 4G and 5G network dynamic frequency allocation method as defined in claim 8, wherein in steps 2-5: calculating the number of dynamic radio resource allocations for non-ultra-reliable and low-delay traffic in a 5G network using RBs_u-5GIs represented as follows:

RB_u-5G＝CO_5G-d*(N-RB_u-d) (18)。

10. a fair 4G and 5G network dynamic frequency allocation method as defined in claim 9 wherein the radio resource allocation coefficient CO of the ultra-reliable and low-delay communication service in step 1_u4G radio resource distribution coefficient CO_4GAnd 5G radio resource allocation coefficient CO_5GSatisfies the following formula (4):

CO_u+CO_4G+CO_5G＝1 (4)

wherein, CO_4G、CO_5GAnd CO_uThe value of (A) is determined by the throughput ratio of the 4G and 5G and ultra-reliable and low-delay communication services of the whole network.

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