A fair method for dynamic frequency allocation in 4G and 5G networks

Abstract

The present invention discloses a fair 4G and 5G network dynamic frequency allocation method, comprising the following steps: step 1, 4G and 5G frequency dynamic sharing base station system startup or initialization stage, the base station system initially allocates wireless resources; step 2, after the 4G and 5G frequency dynamic sharing base station has been running for a period of time, the base station system dynamically allocates part of the wireless resources based on the historical throughput of ultra-reliable and low-latency communication services, combined with the network carrying capacity and wireless resource utilization, and dynamically allocates the remaining wireless resources of the system in proportion based on the historical throughput of the 4G and 5G networks, so as to realize the reallocation of all wireless resources; step 3, the 4G and 5G frequency dynamic sharing base station repeats step 2 after a period of time, and continuously dynamically adjusts the wireless resources.

Description

Technical Field

[0001] The present invention relates to a network frequency allocation method, in particular to a fair 4G and 5G network dynamic frequency allocation method. Background Art

[0002] With the implementation of a series of major national strategies such as building a strong network and manufacturing power, the deep integration of new generation information technology represented by mobile Internet, Internet of Things, and cloud computing with traditional industries has put forward new demands for spectrum resources in various industries, and the structural shortage of radio spectrum resources in my country has become more prominent. With the large-scale deployment and widespread application of 5G mobile communication systems, the demand for spectrum resources in future mobile communication systems will increase significantly. Therefore, in the 5G era, more advanced spectrum resource management methods should be adopted to improve spectrum utilization and alleviate the contradiction between supply and demand.

[0003] (1) Overview of Spectrum Sharing

[0004] There are many ways to classify spectrum sharing. Based on the spectrum resource authorization method, it can be divided into unlicensed spectrum sharing and authorized spectrum sharing; based on the spectrum resource allocation method, it can be divided into static sharing and dynamic sharing; based on the spectrum resource allocation behavior, it can be divided into co-existence sharing and non-collaborative sharing.

[0005] (2) 4G / 5G spectrum sharing technology

[0006] 4G / 5G spectrum sharing can be divided into two categories: static spectrum sharing and dynamic spectrum sharing. Static spectrum sharing means dividing the spectrum into two fixed, non-overlapping segments, which are allocated to 4G (or LTE) and 5G (or NR) respectively. Dynamic spectrum sharing means that LTE / NR can dynamically share frequency resources according to business needs. There are two ways of dynamic spectrum sharing: carrier-level spectrum sharing and PRB / TTI-level spectrum sharing.

[0007] Carrier-level spectrum sharing: The main advantages are that there is no collision between LTE and NR channels, and the interference is small; within the allocated bandwidth, scheduling is not restricted. The main disadvantages are that LTE spectrum resources are limited, and allocating part of the bandwidth to NR will cause performance loss; resource scheduling is not flexible; bandwidth resources are limited, and capacity is limited.

[0008] PRB / TTI-level spectrum sharing: The main advantage is to fully use spectrum resources on demand. The main disadvantages are that there is a collision between LTE and NR channels, resulting in performance loss; in order to avoid interference, scheduling is limited, and the rate is limited; it has high requirements for base stations and terminals.

[0009] (3) Dynamic spectrum sharing implementation technology

[0010] 1) Cognitive Radio

[0011] In the non-cooperative, cooperative, filling, interleaved, adjacent dynamic spectrum allocation and sliced ​​dynamic spectrum allocation sharing modes, users are required to sense the radio electromagnetic spectrum to determine the idle spectrum, and powerful software and hardware reconfiguration capabilities are required to complete the adjustment of radio parameters. The technology that can complete this task is called cognitive (perceptual) radio technology. Cognitive radio technology performs spectrum sensing by receiving radio electromagnetic information of the radio electromagnetic environment, analyzes and predicts the spectrum usage status to determine the idle spectrum, and further adaptively adjusts the radio characteristic parameters such as power, frequency, modulation, and coding to transmit the radio electromagnetic signal. Therefore, without causing harmful interference to the primary user, the idle spectrum of the primary user is used to improve the overall spectrum utilization.

[0012] 2) Spectrum Pool

[0013] Spectrum pooling refers to the use of a spectrum management system to gather idle spectrum from different users to form a resource pool. In the spectrum pool system, users who provide idle spectrum are primary users, and users who apply for and use spectrum are secondary users. Primary users are mostly licensed spectrum users, who have more spectrum and can rent it out to secondary users for use and obtain certain income. Secondary users do not have enough spectrum themselves and need additional spectrum resources. Secondary users may be unlicensed spectrum users or authorized users with no idle spectrum. The spectrum pool system effectively configures spectrum resources through mobile market means. However, a third-party spectrum management system is required to manage the entire system.

[0014] Combining various spectrum sharing methods and implementation technologies can better improve spectrum utilization. For example, setting up private and public spectrum pools for each system, combining time-division dynamic spectrum sharing with space-division dynamic spectrum sharing, and using cognitive radio solutions based on spectrum pools can further improve the utilization of spectrum resources.

[0015] When using 4G and 5G dynamic frequency sharing solutions, if a certain network (4G or 5G network) is busy, it will occupy a large amount of wireless resources (frequency resources) for a long time, and when another network has a new service initiating a wireless resource request, the wireless resources (frequency resources) have been occupied, resulting in the inability to obtain services, which poses a fairness problem. In addition, for the ultra-reliable and low-latency communication (uRLLC) service introduced in the 5G network, the requirements for network performance are mainly reflected in low latency and high reliability. Its bandwidth requirements are small, but its requirements for network performance are high, and its wireless resource (frequency resource) requirements need to be guaranteed first. However, the existing dynamic frequency sharing methods rarely consider the wireless resource (frequency resource) requirements of uRLLC services separately.

[0016] When 4G and 5G dynamically share frequency allocation, on the one hand, it is necessary to dynamically reserve some wireless resources (frequency resources) to give priority to the uRLLC service carrying demand; on the other hand, it is necessary to dynamically allocate idle wireless resources (frequency resources) based on the historical system throughput of the 4G and 5G networks. In this way, on the one hand, the network carrying resource demand of the uRLLC service is guaranteed; on the other hand, since dynamic frequency allocation is based on the actual service carrying resource demand of the 4G and 5G networks, the utilization rate of the wireless resources (frequency resources) of the 4G and 5G networks can be balanced to the greatest extent, and the fair access demand of the 4G and 5G networks can be guaranteed. Summary of the invention

[0017] Purpose of the invention: The technical problem to be solved by the present invention is to provide a fair dynamic frequency allocation method for 4G and 5G networks in view of the shortcomings of the prior art.

[0018] In order to solve the above technical problems, the present invention discloses a fair 4G and 5G network dynamic frequency allocation method, comprising the following steps:

[0019] Step 1, the 4G and 5G frequency dynamic sharing base station system startup or initialization phase, the base station system initially allocates wireless resources;

[0020] Step 2: After the 4G and 5G frequency dynamic shared base stations have been running for a period of time, the base station system dynamically allocates part of the wireless resources based on the historical throughput of ultra-reliable and low-latency communication services, combined with the network carrying capacity and wireless resource utilization, and dynamically allocates the remaining wireless resources of the system in proportion to the historical throughput of the 4G and 5G networks, thereby realizing the reallocation of all wireless resources.

[0021] Step 3: The 4G and 5G frequency dynamic sharing base stations repeat step 2 after a period of time to continuously and dynamically adjust the wireless resources.

[0022] The method for initially allocating wireless resources in step 1 of the present invention is as follows:

[0023] Assume that the total number of wireless resources in the 4G and 5G frequency dynamic shared base station system is N, represented by RB, where RB is the resource block of the system, and perform dynamic wireless resource allocation according to the following steps:

[0024] RB u =CO u *N (1)

[0025] RB 4G =CO 4G *N (2)

[0026] RB 5G =CO 5G*N (3)

[0027] Where: Assume that the total number of wireless resources of the 4G and 5G frequency dynamic sharing base station system is N, and RB is used to represent the resource block of the system. u The wireless resources allocated to ultra-reliable and low-latency communication services in the initial stage, RB 4G The radio resources allocated to non-ultra-reliable and low-latency communication services in the 4G network in the initial stage, RB 5G The radio resources allocated to non-ultra-reliable and low-latency communication services in the 5G network in the initial stage, CO u The wireless resource allocation coefficient for ultra-reliable and low-latency communication services, CO 4G is the 4G wireless resource allocation coefficient, CO 5G is the 5G wireless resource allocation coefficient.

[0028] Step 2 of the present invention comprises the following steps:

[0029] Step 2-1, discretizing the throughput of ultra-reliable and low-latency communication services in continuous time;

[0030] Step 2-2, calculating the equivalent throughput of non-ultra-reliable and low-latency communication services in the 4G network within the continuous time;

[0031] Step 2-3, calculating the equivalent throughput of non-ultra-reliable and low-latency communication services in the 5G network within the continuous time;

[0032] Step 2-4, calculating the dynamic radio resource allocation coefficients for non-ultra-reliable and low-latency communication services in 4G and 5G networks;

[0033] Step 2-5, calculate the number of dynamic wireless resource allocations for non-ultra-reliable and low-latency communication services in 4G and 5G networks.

[0034] The throughput TBS of the ultra-reliable and low-latency communication service in the continuous time T in step 2-1 of the present invention is u After discretization, the value is expressed as a value per unit time. Then the TBS after discretization at the i-th moment is u It can be expressed as:

[0035] TBS u-i , i∈[1,T]

[0036] In continuous time T, the throughput per unit time TBS u-i The maximum value is TBS u-max ,Right now:

[0037] TBS u-max =MAX(TBS u-i ) (5)

[0038] Among them, MAX() is the maximum value function;

[0039] In unit time, based on network carrying capacity RB p , the network throughput is TBS u-max When the service is running, the number of wireless resources required is RB TBS-u-max ,Right now:

[0040] RB TBS-u-max =TBS u-max / RB p (6)

[0041] The network carrying capacity RB p The meaning is the throughput that a single RB can carry in a unit time;

[0042] When the network is running stably, the wireless resource utilization rate must be less than U, where U is the maximum wireless resource utilization rate allowed to maintain stable network operation; the wireless resource dynamically allocated for ultra-reliable and low-latency communication services is RB u-d , calculated according to the following formula (7):

[0043] RB u-d =RB TBS-u-max / U (7)

[0044] Among them, if RB u-d The value of satisfies the following formula (8):

[0045] RB u-d ≤N*U (8)

[0046] The wireless resources dynamically allocated by the base station for ultra-reliable and low-latency communication services are RB u-d ;

[0047] If the above formula (8) is not satisfied, the wireless resources dynamically allocated by the base station for ultra-reliable and low-latency communication services are N*U, that is, RB u-d =N*U.

[0048] In step 2-2 of the present invention, the equivalent throughput TBS of non-ultra-reliable and low-latency communication services in the 4G network within the continuous time T is calculated. 4G-d , the method is as follows:

[0049] The throughput TBS of non-ultra-reliable and low-latency communication services in 4G networks within a continuous time T 4G , discretized and expressed as a value per unit time, then the TBS after discretization at the i-th moment is 4G It can be expressed as: TBS 4G-i , i∈[1,T];

[0050] In the continuous time T, TBS of non-ultra-reliable and low-latency communication services in 4G network per unit time 4G The arithmetic mean is TBS 4G-av ,Right now:

[0051]

[0052] Use σ 4G To represent TBS in each unit time 4G The variance of is calculated as follows:

[0053]

[0054] Then, in the continuous time T, the equivalent throughput of non-ultra-reliable and low-latency communication services in the 4G network is TBS 4G-d ,Right now:

[0055] TBS 4G-d =TBS 4G-av -σ 4G (11).

[0056] In step 2-3 of the present invention, the equivalent throughput TBS of non-ultra-reliable and low-latency communication services in the 5G network within the continuous time T is calculated. 5G-d Here’s how:

[0057] The throughput TBS of non-ultra-reliable and low-latency communication services in 5G networks within continuous time T 5G , discretized and expressed as a value per unit time, namely: TBS 5G-i , i∈[1,T];

[0058] In time T, TBS of non-ultra-reliable and low-latency communication services in 5G network per unit time 5G The arithmetic mean is TBS 5G-av ,Right now:

[0059]

[0060] Use σ 5G To represent TBS in each unit time 5G The variance of is calculated as follows:

[0061]

[0062] Then, within time T, the equivalent throughput of non-ultra-reliable and low-latency communication services in the 5G network is TBS 5G-d ,Right now:

[0063] TBS 5G-d =TBS 5G-av +σ5G (14).

[0064] In step 2-4 of the present invention, the dynamic wireless resource allocation coefficients of non-ultra-reliable and low-latency communication services in 4G and 5G networks are calculated, respectively using CQ 4G-d and CO 5G-d represents, where:

[0065]

[0066]

[0067] In step 2-5 of the present invention: the number of dynamic wireless resource allocations for non-ultra-reliable and low-latency communication services in the 4G network is calculated, and RB u-4G It is expressed as follows:

[0068] RB u-4G =CO 4G-d *(N-RB u-d ) (17).

[0069] In step 2-5 of the present invention: Calculate the number of dynamic wireless resource allocations for non-ultra-reliable and low-latency communication services in the 5G network, using RB u-5G It is expressed as follows:

[0070] RB u-5G =CO 5G-d *(N-RB u-d ) (18).

[0071] The ultra-reliable and low-delay communication service wireless resource allocation coefficient CO in step 1 of the present invention u 、4G wireless resource allocation coefficient CO 4G And 5G wireless resource allocation coefficient CO 5G The following formula (4) is satisfied:

[0072] CO u +CO 4G +CO 5G =1 (4)

[0073] Among them, CO 4G , CO 5G and CO u The value is determined by the throughput ratio of 4G, 5G and ultra-reliable and low-latency communication services in the entire network.

[0074] Beneficial effects: While ensuring the performance of the uRLLC service network, frequency allocation can be dynamically performed according to the actual carrying requirements of 4G and 5G networks to ensure fair access to 4G and 5G networks. BRIEF DESCRIPTION OF THE DRAWINGS

[0075] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, and the above and / or other advantages of the present invention will become more clear.

[0076] Figure 1 It is a schematic diagram of the process of the present invention. DETAILED DESCRIPTION

[0077] The present invention proposes a fair 4G and 5G network dynamic frequency allocation method, which can dynamically allocate frequencies according to the actual carrying requirements of 4G and 5G networks while ensuring the performance of the uRLLC service network, thereby ensuring fair access requirements for 4G and 5G networks.

[0078] (1) Principle of the solution

[0079] In the 4G and 5G dynamic frequency sharing system, firstly, based on the historical throughput of the uRLLC (ultra-reliable and low-latency communication) service, combined with the network carrying capacity and wireless resource utilization, part of the wireless resources (frequency resources) are dynamically allocated to ensure the wireless resources required to carry the uRLLC service; secondly, the remaining wireless resources (frequency resources) of the system are dynamically allocated in proportion based on the historical throughput of the 4G and 5G networks.

[0080] (2) Detailed description of the scheme

[0081] Assume that the total number of wireless resources (here represented by RB, RB is the resource block of the system) of a 4G and 5G frequency dynamic sharing base station system is N, such as Figure 1 As shown, dynamic wireless resource allocation is performed according to the following steps.

[0082] Step 1: Since the base station system is in the startup or initialization stage, the base station system has no historical throughput information of 4G, 5G and uRLLC services. Therefore, the wireless resources are initially allocated according to formulas (1), (2) and (3).

[0083] RB u =CO u *N (1)

[0084] RB 4G =CO 4G *N (2)

[0085] RB 5G =CO 5G *N (3)

[0086] Among them: RB u RB is the wireless resource allocated to the uRLLC service in the initial stage. 4G The radio resources allocated to non-uRLLC services in the 4G network in the initial stage, RB 5GIt is the radio resources allocated to non-uRLLC services in the 5G network in the initial stage. u is the radio resource allocation coefficient for uRLLC service, CO 4G is the 4G wireless resource allocation coefficient. 5G is the 5G wireless resource allocation coefficient and meets the requirements of formula (4).

[0087] CO u +CO 4G +CO 5G =1 (4)

[0088] For CO u , CO 4G , CO 5G The value of can be determined by network operators themselves or based on the throughput ratio of 4G, 5G, and uRLLC services in the entire network.

[0089] Step 2: After the base station has been running for a period of time T, the RB u , RB 4G , RB 5G , make dynamic adjustments (reallocation).

[0090] Step 2.1: For the convenience of calculation, the throughput TBS of the uRLLC service in the continuous time T is required u Discretize it and express it as a value per unit time, that is: TBS u-i , i∈[1,T]. Then within time T, each unit time TBS u The maximum value is TBS u-max ,Right now:

[0091] TBS u-max =MAX(TBS u-i ) (5)

[0092] Among them, MAX() is the maximum value function.

[0093] In unit time, based on network carrying capacity RB p , the network throughput is TBS u-max When the service is running, the number of wireless resources required is RB TBS-u-max ,Right now:

[0094] RB TBS-u-max =TBS u-max / RB p (6)

[0095] The network carrying capacity RB p It means the throughput that a single RB can carry in unit time.

[0096] Considering that when the network is running stably, the wireless resource utilization rate is generally less than U (in order to ensure the stable operation of the network, the wireless resource utilization rate can generally be 60%, or it can be set by the network operator according to the actual situation of the network). The wireless resource dynamically allocated for the uRLLC service is RB u-d , can be calculated according to formula (7), namely:

[0097] RB u-d =RB TBS-u-max / U (7)

[0098] Here, if RB u-d The value of satisfies formula (8),

[0099] RB u-d ≤N*U (8)

[0100] The actual wireless resource dynamically allocated by the base station for the uRLLC service is RB u-d If formula (8) is not satisfied, the actual wireless resources dynamically allocated by the base station for the uRLLC service are N*U, that is, RB u-d =N*U.

[0101] Step 2.2: Calculate the equivalent throughput TBS of non-uRLLC services in the 4G network within time T 4G-d .

[0102] The throughput TBS of non-uRLLC services in 4G network within continuous time T 4G , discretized and expressed as a value per unit time, namely: TBS 4G-i , i∈[1,T].

[0103] In the time T, the non-uRLLC service in the 4G network has a TBS per unit time. 4G The arithmetic mean is TBS 4G-av ,Right now:

[0104]

[0105] σ 4G TBS per unit time 4G The variance can be calculated using the following formula.

[0106]

[0107] Then, within time T, the equivalent throughput of non-uRLLC services in the 4G network is TBS 4G-d ,Right now

[0108] TBS 4G-d=TBS 4G-av -σ 4G (11)

[0109] Step 2.3: Calculate the equivalent throughput TBS of non-uRLLC services in the 5G network within time T 5G-d .

[0110] The throughput TBS of non-uRLLC services in 5G network within continuous time T 5G , discretized and expressed as a value per unit time, namely: TBS 5G-i , i∈[1,T].

[0111] In the time T, TBS of non-uRLLC services in 5G network in each unit time 5G The arithmetic mean is TBS 5G-av ,Right now:

[0112]

[0113] σ 5G TBS per unit time 5G The variance can be calculated using the following formula.

[0114]

[0115] Then, within time T, the equivalent throughput of non-uRLLC services in the 5G network is TBS 5G-d ,Right now

[0116] TBS 5G-d =TBS 5G-av +σ 5G (14)

[0117] Step 2.4: Calculate the dynamic radio resource allocation coefficients for non-uRLLC services in 4G and 5G networks, using CO 4G-d and CO 5G-d Indicates. Among them:

[0118] CO 4G-d =TBS 4G-d / (TBS 4G-d +TBS 5G-d ) (15)

[0119] CO 5G-d =TBS 5G-d / (TBS 4G-d +TBS 5G-d ) (16)

[0120] Step 2.5: Calculate the number of dynamic radio resource allocations for non-uRLLC services in 4G and 5G networks, using RBu-4G and RB u-5G Indicates. That is:

[0121] RB u-4G =CO 4G-d *(N-RB u-d ) (17)

[0122] RB u-5G =CO 5G-d *(N-RB u-d ) (18)

[0123] Step 3: After waiting for a period of time T, execute step 2.

[0124] The present invention provides a fair 4G and 5G network dynamic frequency allocation method and method. There are many methods and ways to implement the technical solution. The above is only a preferred implementation of the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A fair 4G and 5G network dynamic frequency allocation method, characterized in that: The following steps are involved: Step 1, the 4G and 5G frequency dynamic sharing base station system startup or initialization phase, the base station system initially allocates wireless resources; Step 2: After the 4G and 5G frequency dynamic shared base stations have been running for a period of time, the base station system dynamically allocates part of the wireless resources based on the historical throughput of ultra-reliable and low-latency communication services, combined with the network carrying capacity and wireless resource utilization, and dynamically allocates the remaining wireless resources of the system in proportion to the historical throughput of the 4G and 5G networks, thereby realizing the reallocation of all wireless resources. Step 3: The 4G and 5G frequency dynamic sharing base stations repeat step 2 after a certain period of time to continuously dynamically adjust the wireless resources; Wherein, step 2 comprises the following steps: Step 2-1, discretizing the throughput of ultra-reliable and low-latency communication services in continuous time; Step 2-2, calculating the equivalent throughput of non-ultra-reliable and low-latency communication services in the 4G network within the continuous time; Step 2-3, calculating the equivalent throughput of non-ultra-reliable and low-latency communication services in the 5G network within the continuous time; Step 2-4, calculating the dynamic radio resource allocation coefficients for non-ultra-reliable and low-latency communication services in 4G and 5G networks; Step 2-5, calculating the number of dynamic radio resource allocations for non-ultra-reliable and low-latency communication services in 4G and 5G networks; The throughput TBS of the ultra-reliable and low-latency communication service in the continuous time T in step 2-1 is u After discretization, the value is expressed as a value per unit time. Then the TBS after discretization at the i-th moment is u It can be expressed as: TBS u-i ,i∈[1,T] In continuous time T, the throughput per unit time TBS u-i The maximum value is TBS u-max ,Right now: TBS u-max =MAX(TBS u-i ) (5) Among them, MAX() is the maximum value function; In unit time, based on network carrying capacity RB p , the network throughput is TBS u-max When the service is running, the number of wireless resources required is RB TBS-u-max ,Right now: RB TBS-u-max =TBS u-max / RB p (6) The network carrying capacity RB p The meaning is the throughput that a single RB can carry in a unit time; When the network is running stably, the wireless resource utilization rate must be less than U, where U is the maximum wireless resource utilization rate allowed to maintain stable network operation; the wireless resource dynamically allocated for ultra-reliable and low-latency communication services is RB u-d , calculated according to the following formula (7): RB u-d =RB TBS-u-max / U (7) Among them, if RB u-d The value of satisfies the following formula (8): RB u-d ≤N*U (8) The wireless resources dynamically allocated by the base station for ultra-reliable and low-latency communication services are RB u-d ; If the above formula (8) is not satisfied, the wireless resources dynamically allocated by the base station for ultra-reliable and low-latency communication services are N*U, that is, RB u-d =N*U; In step 2-2, the equivalent throughput TBS of non-ultra-reliable and low-latency communication services in the 4G network within the continuous time T is calculated 4G-d , the method is as follows: The throughput TBS of non-ultra-reliable and low-latency communication services in 4G networks within a continuous time T 4G , discretized and expressed as a value per unit time, then the TBS after discretization at the i-th moment is 4G It can be expressed as: TBS 4G-i , i∈[1,T]; In the continuous time T, TBS of non-ultra-reliable and low-latency communication services in 4G network per unit time 4G The arithmetic mean is TBS 4G-av ,Right now: Use σ 4G To represent TBS in each unit time 4G The variance of is calculated as follows: Then, in the continuous time T, the equivalent throughput of non-ultra-reliable and low-latency communication services in the 4G network is TBS 4G-d ,Right now: TBS 4G-d =TBS 4G-av -σ 4G (11) In step 2-3, the equivalent throughput TBS of non-ultra-reliable and low-latency communication services in the 5G network within the continuous time T is calculated 5G-d Here’s how: The throughput TBS of non-ultra-reliable and low-latency communication services in 5G networks within continuous time T 5G , discretized and expressed as a value per unit time, namely: TBS 5G-i , i∈[1,T]; In time T, TBS of non-ultra-reliable and low-latency communication services in 5G network per unit time 5G The arithmetic mean is TBS 5G-av ,Right now: Use σ 5G To represent TBS in each unit time 5G The variance of is calculated as follows: Then, within time T, the equivalent throughput of non-ultra-reliable and low-latency communication services in the 5G network is TBS 5G-d ,Right now: TBS 5G-d =TBS 5G-av +σ 5G (14) In step 2-4, the dynamic wireless resource allocation coefficients for non-ultra-reliable and low-latency communication services in 4G and 5G networks are calculated, using CO 4G-d and CO 5G-d represents, where: In step 2-5: Calculate the number of dynamic radio resource allocations for non-ultra-reliable and low-latency communication services in the 4G network, using RB u-4G It is expressed as follows: RB u-4G =WHAT 4G-d *(N-RB u-d ) (17) In step 2-5: Calculate the number of dynamic radio resource allocations for non-ultra-reliable and low-latency communication services in the 5G network, using RB u-5G It is expressed as follows: RB u-5G =WHAT 5G-d *(N-RB u-d ) (18)。 2. A fair 4G and 5G network dynamic frequency allocation method according to claim 1, characterized in that: The method for initially allocating wireless resources in step 1 is as follows: Assume that the total number of wireless resources in the 4G and 5G frequency dynamic shared base station system is N, represented by RB, where RB is the resource block of the system, and perform dynamic wireless resource allocation according to the following steps: RB u =WHAT u *N(1) RB 4G =WHAT 4G *N(2) RB 5G =WHAT 5G *N(3) Where: Assume that the total number of wireless resources of the 4G and 5G frequency dynamic sharing base station system is N, and RB is used to represent the resource block of the system. u The wireless resources allocated to ultra-reliable and low-latency communication services in the initial stage, RB 4G The radio resources allocated to non-ultra-reliable and low-latency communication services in the 4G network in the initial stage, RB 5G The radio resources allocated to non-ultra-reliable and low-latency communication services in the 5G network in the initial stage, CO u The wireless resource allocation coefficient for ultra-reliable and low-latency communication services, CO 4G is the 4G wireless resource allocation coefficient, CO 5G is the 5G wireless resource allocation coefficient.

3. A fair 4G and 5G network dynamic frequency allocation method according to claim 2, characterized in that: The radio resource allocation coefficient CO of the ultra-reliable and low-delay communication service described in step 1 u 、4G wireless resource allocation coefficient CO 4G And 5G wireless resource allocation coefficient CO 5G The following formula (4) is satisfied: WHAT u +WHAT 4G +WHAT 5G =1 (4) Among them, CO 4G , CO 5G and CO u The value is determined by the throughput ratio of 4G, 5G and ultra-reliable and low-latency communication services in the entire network.

Images