WO2021027498A1 - Traffic allocation management method, apparatus, base station, and storage medium - Google Patents

Abstract

A traffic allocation management method, an apparatus, a base station, and a storage medium. The method comprises: determining a traffic division factor of a main cell for a target terminal and a traffic division factor of an auxiliary cell for the target terminal (S102); and according to a traffic allocation ratio composed of the traffic division factors of the main cell and the auxiliary cell, allocating downlink traffic of the target terminal in the main cell and the auxiliary cell (S104).

Description

Traffic distribution management method, device, base station and storage medium

Cross references to related applications

This application is filed based on a Chinese patent application with an application number of 201910745286.9 and an application date of August 13, 2019, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated into this application by reference.

Technical field

The present invention relates to the field of communications, and in particular to a flow distribution management method, device, base station and storage medium.

Background technique

With the rapid development of wireless communication technology, dual connection technology has become a very important current wireless communication technology. The so-called dual connection means that a terminal is connected to the primary cell and the secondary cell at the same time by air interface, and the downlink traffic of a terminal can be transmitted to it through the primary cell and the secondary cell at the same time. However, the traffic management strategy in the dual-connection scenario still uses the single-cell downlink traffic distribution management scheme. For example, for the primary cell, how much traffic it transmits to a terminal at the current moment depends on the actual transmission to the terminal at the previous moment. The same is true for the secondary cell.

In this traffic management scheme, the downlink traffic of a terminal in a cell is only related to that cell and not to another cell. Therefore, the traffic distribution does not consider the traffic transmission of the terminal in another cell, and the primary cell and the secondary cell are isolated. , It is easy to cause unreasonable terminal traffic distribution in the primary cell and secondary cell, affect the service experience of the terminal side, and cause the problem of low traffic on the base station side.

Summary of the invention

The traffic distribution management method, device, base station, and storage medium provided by the embodiments of the present invention are intended to solve at least to a certain extent. In some cases, the traffic distribution strategies of the primary cell and the secondary cell are isolated, causing the terminal to be in the primary cell and the secondary cell. The traffic distribution of the cell is unreasonable, which affects the service experience on the terminal side and restricts the problem of downlink traffic transmission on the base station side.

In view of this, an embodiment of the present invention provides a traffic allocation management method, including: determining the offload factor of the primary cell to the target terminal and the offload factor of the secondary cell to the target terminal, where the offload factor is based on the cell downlink resource information of the cell And the downlink channel condition information and downlink service quality information of the target terminal in the cell are determined; the target terminal is allocated between the primary cell and the primary cell according to the traffic distribution ratio formed by the offload factors of the primary cell and the secondary cell. Downlink traffic of the secondary cell.

An embodiment of the present invention also provides a traffic allocation management device, including: a ratio determination module, configured to determine the offload factor of the primary cell to the target terminal and the offload factor of the secondary cell to the target terminal, the offload factor being based on the cell of the cell Downlink resource information and the downlink channel condition information and downlink service quality information of the target terminal in the cell are determined; a traffic allocation module is configured to allocate the target according to the traffic allocation ratio formed by the offload factors of the primary cell and the secondary cell The downlink traffic of the terminal in the primary cell and the secondary cell.

An embodiment of the present invention also provides a base station, the base station includes a processor, a memory, and a communication bus; the communication bus is used to realize the connection and communication between the processor and the memory; the processor is used to execute a Or multiple procedures to implement the steps of the above-mentioned traffic distribution management method.

The embodiment of the present invention also provides a storage medium, the storage medium stores one or more programs, and the one or more programs can be executed by one or more processors to implement the steps of the above-mentioned traffic distribution management method.

Other features and corresponding beneficial effects of the present invention are described in the latter part of the specification, and it should be understood that at least some of the beneficial effects will become apparent from the description in the specification of the present invention.

Description of the drawings

FIG. 1 is a flowchart of a method for traffic distribution management provided in Embodiment 1 of the present invention;

2 is a schematic diagram of the communication system shown in Embodiment 1 of the present invention;

3 is a flowchart of determining a target terminal provided in Embodiment 1 of the present invention;

FIG. 4 is a flowchart of a traffic distribution management method provided in Embodiment 2 of the present invention;

5 is a schematic structural diagram of a traffic distribution management device provided in Embodiment 4 of the present invention;

6 is a schematic diagram of another structure of a traffic distribution management device provided in Embodiment 4 of the present invention;

FIG. 7 is a schematic diagram of a hardware structure of a base station provided in Embodiment 5 of the present invention.

detailed description

In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the embodiments of the present invention in detail through specific implementations in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

Example one:

In order to solve to a certain extent, in some cases, dual connection scenarios still use isolated traffic distribution management solutions for primary and secondary cells, resulting in unreasonable traffic distribution for a terminal in primary and secondary cells, affecting terminal user experience and causing base stations For the problem of low traffic, this embodiment provides a traffic distribution management method. The traffic distribution management method is applied to the primary cell and is implemented by the base station on the primary cell side. Please refer to Figure 1:

S102: Determine the offload factor of the primary cell to the target terminal and the offload factor of the secondary cell to the target terminal.

In some examples of this embodiment, the base station where the primary cell is located can separately obtain and determine the offload factors of the primary cell and the secondary cell. For a target terminal, the offload factor of the primary cell can be recorded as a _primary and the offload factor of the secondary cell can be recorded It is a _secondary , a _primary : a _secondary is the traffic distribution ratio formed by the flow factor of the primary subdivision and the flow factor of the secondary subdivision. It represents the total downlink traffic of the target terminal. The primary cell will be divided into a _primary /(a _primary + a _auxiliary ), and the auxiliary cell will get a _auxiliary /(a _main + a _auxiliary ).

In this embodiment, the offload factor of a cell to a terminal can be determined based on the cell downlink resource information of the cell and the downlink channel condition information and downlink service quality information of the terminal in the cell, for example, the offload factor of the primary cell to a terminal a _Master can be determined according to the cell downlink resource information of the primary cell and the downlink channel condition information and downlink service quality information of the terminal in the primary cell. The offload factor a _{secondary of the} secondary cell for a terminal can be determined according to the cell downlink resource information of the secondary cell and the downlink channel condition information and downlink service quality information of the terminal in the secondary cell.

When determining the offload factor of the primary cell to the target terminal, the base station can obtain the primary cell’s own cell downlink resource information collected by the primary cell, as well as the primary cell’s downlink channel information and downlink service command information of the target terminal in the primary cell. , And then determine the offload factor of the primary cell to the target terminal based on this information.

When determining the offload factor of the secondary cell to the target terminal, the base station can also obtain the secondary cell’s own cell downlink resource information collected by the secondary cell, as well as the secondary cell’s downlink channel information and downlink service instructions of the target terminal in the secondary cell. Information, and then determine the offload factor of the secondary cell to the target terminal based on this information. However, in some other examples of this embodiment, after the secondary cell collects relevant information, it can directly calculate the offload factor of the secondary cell to the target terminal, and then send the offload factor to the base station so that the base station on the primary cell side The offload factor of the secondary cell to the target terminal is obtained.

In the related protocol, although the primary cell and the secondary cell can communicate directly, the direct communication relies on the communication interface specified in the existing protocol, and it is not determined in the related protocol that these communication interfaces can transmit the offload factor of the secondary cell to a terminal Or it is to transmit information used to determine the offload factor of the secondary cell to the terminal. Therefore, in some examples of this embodiment, the cell downlink resource information sent by the secondary cell to the base station on the primary cell side, and the target terminal collected by the secondary cell is in the secondary cell. The downlink channel condition information and downlink service command information can be sent to the primary cell side through the network management system. Similarly, the offload factor of the secondary cell to the target terminal calculated by the secondary cell itself can also be sent to the primary cell through the network management system. Please refer to a schematic diagram of the communication system shown in FIG. 2. In FIG. 2, the primary and secondary cells belong to different base stations. The primary base station 21 and the secondary base station 22 can communicate through the network management system 23. If the secondary base station 22 The next secondary cell determines the offload factor of the secondary cell to the target terminal after information collection, then the secondary cell can transmit the calculated secondary cell flow factor to the primary base station 21 through the network management system 23, so that the primary base station 21 can obtain The shunt factor to the secondary cell. If the secondary cell under the secondary base station 22 only collects information, and the primary cell determines the offload factor of the primary cell and the offload factor of the secondary cell according to the collected information, then the secondary base station 22 can collect the secondary cell itself from the secondary cell. The downlink resource information of the cell, the downlink channel condition information of the target terminal in the secondary cell, and the downlink service quality information are sent to the primary base station 21 through the network management system 23.

In some examples of this embodiment, the downlink resource information of the cell includes but is not limited to the PRB (Physical Resource Block, physical resource block) utilization rate of the cell. In addition, it may also include any of the CPU utilization and memory utilization on the base station side.

The so-called downlink channel condition information may include the terminal's MCS (Modulation and Coding Scheme), SNR (Signal-to-Noise Ratio), SINR (Signal to Interference plus Noise Ratio), RSRP At least one of (Reference Signal Received Power), RSRQ (Reference Signal Received Quality, Reference Signal Received Quality), and CQI (Channel Quality Indicator, Channel Quality Indicator). In some examples of this embodiment, the downlink channel condition of the target terminal may be characterized by the MCS of the target terminal. Therefore, the downlink channel condition information corresponding to the target terminal is MCS.

The downlink service quality information includes but is not less than the BLER (Block error ratio, downlink block error rate) of the terminal.

In some examples of this embodiment, the cell downlink resource information includes the cell PRB utilization, the downlink channel condition information includes the downlink MCS of the target terminal in the corresponding cell, and the downlink service quality information includes the downlink BLER of the target terminal in the corresponding cell; The shunt factor a of the target terminal is _main :

The offload factor a of the _secondary cell to the target terminal _secondary :

Among them, SE _primary is the spectrum efficiency corresponding to the MCS of the target terminal in the primary cell; BLER _primary is the downlink BLER of the target terminal in the primary cell; cell PRB utilization is the _primary cell PRB utilization; SE _secondary is the target terminal in the secondary cell The spectrum efficiency corresponding to the MCS of the cell; BLER is _supplemented by the downlink BLER of the target terminal in the secondary cell; the cell PRB utilization rate is supplemented by the PRB utilization rate of the _secondary cell;

f1, f2, and f3 are calculation factors, and the values can be set by network administrators based on experience values. In some examples of this embodiment, the values of f1, f2, and f3 are fixed, but in other examples of this embodiment, the network administrator can adjust the values of f1, f2, and f3 according to the actual situation. That is, in different calculation processes, f1, f2, and f3 may be different.

It is understandable that after determining the offload factor of the primary cell to the target terminal and the offload factor of the secondary cell to the target terminal, the traffic allocation ratio of the target terminal in the primary cell and the secondary cell is determined. In some examples, before determining the offload factor of the primary cell to the target terminal and the offload factor of the secondary cell to the target terminal in the foregoing manner, the base station on the primary cell side may first determine whether there is at least one current load in the primary cell and the secondary cell. Whether it exceeds the limit, if the judgment result is no, that is, the current load of the primary cell and the secondary cell are both over-limit, the base station where the primary cell is located can determine the offload factor of the primary cell and the offload factor of the secondary cell in the aforementioned manner, but if If the judgment result is yes, it means that the current load of at least one of the primary cell and the secondary cell exceeds the limit. Therefore, the base station can determine the traffic distribution ratio of the target terminal in the primary cell to the secondary cell in other ways, for example, in one of the examples , According to the cell downlink resource information of the primary cell and the downlink resource information of the secondary cell to determine the traffic allocation ratio of the primary cell and the secondary cell to the target terminal. For example, if the downlink resource information of the cell is the cell PRB, the traffic allocation ratio between the primary cell and the secondary cell of the target terminal may be _primary cell PRB utilization rate: _secondary cell PRB utilization rate.

S104: Allocate the downlink traffic of the target terminal in the primary cell and the secondary cell according to the traffic distribution ratio formed by the offload factors of the primary cell and the secondary cell.

After determining the target terminal's traffic allocation ratio in the primary cell and the secondary cell, the primary cell can control the target terminal's downlink traffic allocation according to the traffic allocation ratio, so that the target terminal's traffic allocation in the primary cell and the secondary cell conforms to the primary cell With the resources of the secondary cell itself, it also takes into account the service quality and channel conditions of the target terminal in the primary cell, thereby enabling the target terminal’s downlink traffic to be effectively transmitted, improving the transmission efficiency of the target terminal’s downlink traffic, and enhancing the users on the target terminal side Experience. At the same time, the total traffic carried by the primary cell and the secondary cell is increased, and the throughput of the communication system is improved.

It is understandable that if the primary cell and secondary cell originally transmit a lot of traffic and have reached the desired level, the primary cell does not need to adjust the target terminal's traffic in the primary cell according to the newly determined traffic distribution ratio. And the traffic in the secondary cell. That is, the original traffic distribution strategy is already relatively good, and there is no need to adjust according to the newly determined traffic distribution strategy, and only the current traffic distribution strategy needs to be maintained. Therefore, in some examples of this embodiment, if the actual total downlink traffic of the primary cell and the secondary cell have reached the corresponding expected total downlink traffic, that is, the actual total downlink traffic of the primary cell reaches the expected total downlink traffic corresponding to the primary cell. If the actual total downlink traffic of the secondary cell reaches the expected total downlink traffic corresponding to the secondary cell, there is no need to adjust the traffic distribution of the target terminal in the primary cell and the secondary cell according to the newly determined traffic distribution strategy. However, if the actual total downlink traffic of at least one of the primary cell and the secondary cell does not reach the corresponding expected total downlink traffic, the primary cell can allocate the target terminal to the primary cell and the secondary cell according to the traffic distribution ratio determined according to the offload factor. Downstream traffic.

It is understandable that the primary cell and the secondary cell in the dual-connection scenario do not serve a certain terminal. Under normal circumstances, the primary cell and the secondary cell are connected to multiple terminals at the same time. In some examples in this embodiment, the primary cell The cell can use these terminals as target terminals, determine the offload factor of the primary cell and the secondary cell to each target terminal, and then control and manage the traffic of each target terminal in the primary cell and the secondary cell according to the traffic distribution ratio. However, considering the huge number of terminals in a cell, if the traffic allocation of the primary cell to each terminal is adjusted in the aforementioned manner, the burden on the primary cell will be relatively high, and the effect after one adjustment is good or bad It cannot be completely determined before the adjustment. Therefore, after the adjustment, the problem of poor adjustment effect may occur. Therefore, in some examples of this embodiment, when determining the offload factor of the primary cell to the target terminal and the secondary cell to the target terminal Prior to the offload factor, the primary cell will first determine the target terminal. Please refer to a flowchart for determining the target terminal shown in Figure 3:

S302: Acquire terminal downlink resource information of each terminal in the primary cell and the secondary cell.

In some examples of this embodiment, the terminal downlink resource information may refer to the PRB utilization rate of the terminal. Of course, those skilled in the art can understand that the terminal downlink resource information may also be other information of the terminal, such as the CPU of the terminal. Utilization, or memory utilization, etc.

S304: Determine the target terminal from each terminal according to the terminal downlink resource information of each terminal in the primary cell and the secondary cell.

After acquiring the terminal downlink resource information of each terminal in the primary cell and the secondary cell, the base station may select a target terminal from each terminal according to the terminal downlink resource information of each terminal. For example, if the downlink resource information of the terminal is the PRB utilization rate of the terminal, the base station may preferentially select the terminal with a higher PRB utilization rate among the terminals as the target terminal: In an example of this embodiment, the base station may use the PRB according to the terminal PRB utilization rate. Select 10 terminals as target terminals in the order of selection from high to low rate. In this example, the base station determines the target terminal according to the preset number. However, in other examples of this embodiment, the base station can select the previous terminal according to the selection order of terminal PRB utilization from high to low. 10% of the terminals are used as target terminals.

It is understandable that the process of adjusting the terminal traffic distribution strategy by the primary cell is not only performed once, but may be executed cyclically. Therefore, after adjusting the traffic distribution strategy of some terminals according to the corresponding traffic distribution ratio, These terminals can be marked as "adjusted terminals". In the next adjustment process, when selecting the target terminal, the base station can select the terminal that has not been marked as adjusted terminal as the target terminal, which can avoid the traffic always targeting some terminals The allocation is adjusted, but another part of the terminal is always unable to get the opportunity to adjust the flow allocation. If the base station finds that all terminals have been marked as adjusted terminals when determining the target terminal, the base station can remove the adjusted mark of each terminal, select the target terminal from all the terminals again, and perform the adjustment on the adjusted terminal. Mark again.

The traffic allocation management method provided in this embodiment can determine the cell-to-terminal offload factor based on the cell's cell downlink resource information, the terminal's downlink channel condition information in the cell, and the downlink service quality information, and then based on each cell-to-terminal The offload factor determines the traffic allocation ratio between the primary cell and the secondary cell, and then adjusts the downlink traffic of the terminal in the primary and secondary cells according to the traffic allocation ratio, so that when the primary and secondary cells allocate traffic, the primary and secondary cells are comprehensively considered The resource situation, as well as the channel situation and service quality of the terminal in the primary and secondary cells, improve the rationality of the primary cell to terminal traffic allocation plan, enhance the transmission efficiency of terminal downlink traffic, and ensure that the total traffic of the primary and secondary cells is increased .

Embodiment two:

This embodiment will continue to describe the foregoing traffic distribution management method in combination with examples. Please refer to the flowchart shown in FIG. 4:

S402: Periodically collect the cell PRB utilization rate of the primary cell and the downlink MCS, downlink BLER and terminal PRB utilization rates of each terminal in the primary cell.

In this embodiment, the base station periodically selects some terminals to adjust the traffic distribution ratio. Therefore, the primary cell will periodically collect information for each terminal under it. The collected information includes the terminal's downlink MCS, downlink BLER, and terminal PRB utilization. On the other hand, the primary cell will also periodically collect its own cell PRB resource utilization.

S404: Periodically receive the cell PRB utilization rate of the secondary cell and the downlink MCS, downlink BLER and terminal PRB utilization rate of each terminal in the secondary cell sent by the secondary cell through the network management system.

It is understandable that in order for the base station on the primary cell side to comprehensively determine the traffic allocation ratio of the terminal based on the downlink resource situation of the primary and secondary cells, the service quality situation and channel conditions of the terminal in the two cells, the secondary cell will also Periodically collect information for each terminal under it, and the collected information includes the terminal's downlink MCS, downlink BLER, and terminal PRB utilization. On the other hand, the secondary cell will also periodically collect its own cell PRB resource utilization.

After collecting this information, the secondary cell does not need to determine the offload factor of the secondary cell to the terminal by itself, but transmits this information to the base station on the primary cell side, and the base station calculates the offload factor of the secondary cell to the terminal. In some examples of this embodiment, the secondary cell can send the information collected by itself to the base station on the primary cell side through the network management system.

There is no doubt that in this embodiment, although the base station first obtains the information of the primary cell and the terminal in the primary cell, and then obtains the information of the secondary cell and the terminal in the secondary cell through the network management system, the timing of these two processes It is not limited to this. In some other examples, the two processes can be performed simultaneously, or the latter process can be performed first, and then the former process.

S406: Determine whether the actual total downlink traffic of the primary cell and the secondary cell both reach the corresponding expected total downlink traffic.

If the judgment result is yes, the process is ended, otherwise, S408 is executed.

The actual total downlink traffic can be directly obtained by the primary cell and the secondary cell in the process of information collection. In this embodiment, the expected total downlink traffic of a cell can be determined in the following manner:

The base station determines the downlink MCS of all terminals in the cell and counts the number of terminals using various downlink MCSs. For example, for type A MCS, there are k1 terminals used, for type B MCS, there are k2 terminals used, and for type C There are k3 terminals using the MCS... Then, the base station selects the first m MCS to be used from among them, determines the spectral efficiency corresponding to these MCS, and then calculates the average spectral efficiency of the cell. Then the base station determines the corresponding expected total downlink traffic according to the average value of the spectral efficiency of the cell and the corresponding downlink bandwidth and expectation factor. For example, for the primary cell, the expected total downlink traffic is:

T _exp ＝SE _{average main} *downlink bandwidth _main *f ₄

Among them, T _{exp is} the expected total downlink traffic of the _primary cell, SE _{average is the average} spectral efficiency of the _primary primary cell, the downlink bandwidth is the _primary downlink bandwidth of the _primary cell, and f _{4 is} the expected factor corresponding to the primary cell.

For the secondary cell, the expected total downlink traffic is:

T _exp ＝SE _{average auxiliary} *downlink bandwidth _auxiliary *f ₅

Among them, T _{exp is} the expected total downlink traffic of the secondary cell, SE _{average is the average} spectral efficiency of the secondary cell, the downlink bandwidth is the downlink bandwidth of the _secondary cell, and f _{5 is} the expectation factor corresponding to the secondary cell.

S408: Select a terminal from each terminal that has not been marked as an adjusted terminal as a target candidate terminal.

In some examples of this embodiment, when the base station selects the target terminal, it first eliminates the terminals that have been marked as adjusted terminals, and only uses the remaining terminals as candidate target terminals. It is understandable that, in this case, the terminal currently marked as the adjusted terminal cannot be selected as the target terminal.

S410: Determine whether the number of target candidate terminals is zero.

If the judgment result is yes, execute S412; otherwise, it means that all terminals are currently marked as adjusted terminals. Therefore, S414 needs to be executed.

S412: Remove the adjusted marks of all terminals.

Since all terminals have been adjusted in the previous process of adjusting the traffic distribution ratio one or more times, the current round of adjustment can be completely restarted, that is, the base station can remove the adjusted flag of each terminal.

After removing the adjusted flag of each terminal, the base station can continue to perform S408. At this time, all terminals will be selected as candidate target terminals.

S414: Select a target terminal from candidate target terminals according to the PRB utilization rate of each terminal in the primary cell and the secondary cell.

After the candidate target terminal is selected, the base station can select the target terminal for this round of adjustments from the candidate target terminals based on the terminal PRB utilization rate of each terminal. It can be understood that in some cases, the same terminal is in the PRB of the primary cell. The utilization rate is not equal to the terminal PRB utilization rate in the secondary cell. Naturally, the terminal PRB utilization rate ranking sequence number of the same terminal in the primary cell and the terminal PRB utilization rate ranking sequence number in the secondary cell are also different. Therefore, in some examples of this embodiment, when selecting a target terminal from candidate target terminals, the average PRB utilization rate of each candidate target terminal can be determined first, that is, the terminal PRB utilization of a terminal in the primary cell and the terminal PRB utilization in the secondary cell The average value of the terminal PRB utilization rate. Then, the average PRB utilization rate of each candidate target terminal is sorted from high to low, and the preset number n of candidate target terminals ranked in front is selected as the final target terminal.

Of course, it can be understood that, in some other examples of this embodiment, after the average PRB utilization of each candidate target terminal is sorted from high to low, the q% of the candidate targets ranked in the front may be selected. The terminal serves as the final target terminal.

In addition, in this embodiment, when the target terminal is selected from the candidate target terminals, it is performed by combining the terminal PRB utilization rate of the candidate target terminal in the primary cell and its terminal PRB utilization rate in the secondary cell. However, in this embodiment In some other examples, when the base station selects the target terminal, it can also select only based on the terminal PRB utilization rate of the candidate target terminal in the primary cell, or only based on the terminal PRB utilization rate of the candidate target terminal in the secondary primary cell.

S416: Judge whether the current loads of the primary cell and the secondary cell are within limits.

If the judgment result is no, go to S418, otherwise go to S420.

In some examples of this embodiment, regardless of the primary cell or the secondary cell, the corresponding load threshold is set to the cell PRB utilization rate of 80%. If the cell PRB utilization rate of any one of the primary cell and the secondary cell reaches 80%, then The judgment result is no.

S418: Determine the traffic allocation ratio between the primary cell and the secondary cell according to the cell PRB utilization rates of the primary cell and the secondary cell.

If the cell PRB utilization rate of any one of the primary cell and the secondary cell reaches the load threshold, the base station will reduce the cell PRB utilization rate of each cell under the condition that the total value of the cell PRB utilization rate of the two cells remains unchanged. Below the load threshold, the ratio of the adjusted cell PRB utilization rate of the primary cell and the secondary cell is then used as the traffic distribution ratio. That is, the traffic distribution ratio is equal to the adjusted cell PRB utilization rate of the primary cell: the cell PRB utilization rate of the secondary cell.

S420: determining the primary cell of the target terminal is a _main factor of the shunt, the secondary cell and a _secondary bypass factor of the target terminal, the flow distribution ratio of the primary and secondary cell and a _secondary cell is determined according to a _master.

In this embodiment, the offload factor a of the _primary cell to the target terminal is _primary :

The offload factor a of the _secondary cell to the target terminal _secondary :

Among them, SE _primary is the spectrum efficiency corresponding to the MCS of the target terminal in the primary cell; BLER _primary is the downlink BLER of the target terminal in the primary cell; cell PRB utilization is the _primary cell PRB utilization; SE _secondary is the target terminal in the secondary cell The spectrum efficiency corresponding to the MCS of the cell; BLER is _supplemented by the downlink BLER of the target terminal in the secondary cell; and the cell PRB utilization rate is supplemented by the PRB utilization rate of the _secondary cell.

It can be seen from the above formula that for a cell, the spectrum efficiency of the MCS used by the target terminal in the cell is positively correlated with the offload factor of the cell to the target terminal: the higher the spectrum efficiency of the MCS used by the target terminal in the cell, The larger the value of the offload factor of the cell for the target terminal is, the smaller it is on the contrary.

The downlink BLER of the target terminal in the cell and the cell PRB utilization of the cell are negatively correlated with the offload factor of the cell to the target terminal: the larger the downlink BLER of the target terminal in a cell, the offload of the cell to the target terminal The smaller the value of the factor, the larger on the contrary; the larger the cell PRB utilization rate of a cell, the smaller the value of the offload factor for the target terminal of the cell.

S422: Adjust the downlink traffic distribution of the target terminal in the primary cell and the secondary cell according to the traffic distribution ratio.

After determining the traffic distribution ratio of each target terminal, the primary cell can adjust the downlink traffic distribution of the target terminal between the primary cell and the secondary cell according to the corresponding traffic distribution ratio.

S424: Mark the target terminal as an adjusted terminal.

After adjusting the traffic distribution of the target terminal in the primary cell and the secondary cell, the base station on the primary cell side can mark these target terminals as adjusted terminals, and wait for the arrival of the next cycle to re-execute the flow of FIG. 4.

Example three:

In order to make those skilled in the art more clear about the advantages and details of the foregoing traffic distribution management method, this embodiment will introduce the foregoing traffic distribution management method with specific examples:

Example 1:

Assuming that both the primary cell and the secondary cell are working normally, the 256QAM coding is not enabled, and a UE1 accesses the primary cell and the secondary cell in the form of dual connectivity, and the UE1 is currently performing downlink packet filling services. In addition, both the primary cell and the secondary cell set a load threshold at 80% of the PRB utilization.

The collected information of UE1 in the primary cell and secondary cell is shown in Table 1:

Table 1

The cell PRB utilization rates of the primary cell and secondary cell are respectively: 20% and 100%.

After the primary cell and the secondary cell respectively process the information of UE1, the information to UE1 and the cell is shown in Table 2:

Table 2

Community category	Shunt factor	Residential PRB utilization	UE1's adjustment priority
Main cell	0.27	20%	1
Auxiliary cell	0.27	100%	1

The aforementioned adjustment priority refers to the ranking of the terminal PRB utilization rate of the UE1 in the order of terminal PRB utilization rate from high to low. The adjustment priority of UE1 is 1, which means that when the target terminal is selected, the probability of UE1 being selected is basically 100%.

Since the load threshold of the primary cell and the secondary cell is 80%, and the cell PRB utilization of the secondary cell in Table 2 is already 100%, which exceeds the 80% compliance threshold, the primary cell side will no longer determine the traffic allocation based on the offload factor Instead, the ratio of the cell PRB utilization ratio of the primary cell and the secondary cell is directly used as the traffic allocation ratio. For example, the total cell PRB utilization ratio of the primary cell and the secondary cell is 120%, in order to reduce the cell PRB utilization of the secondary cell It is reduced to meet the requirements of the load threshold. Therefore, the cell PRB utilization rate of the secondary cell can be set to 80%. At the same time, to ensure that the total value of the PRB utilization rate of the primary cell and the secondary cell remains unchanged, naturally, the cell PRB utilization of the primary cell The rate will be set to 40%.

Therefore, in this case, the offload ratio of the primary cell and the secondary cell to UE1 is 4:8.

Example 2:

Assuming that the current primary cell and secondary cell are working normally, 256QAM coding is not enabled, two UEs (UE1 and UE2) are connected to the primary cell and secondary cell in a dual connection mode, and these two UEs are currently performing downlink packet filling services .

The collected information of UE1 and UE2 in the primary cell and secondary cell is shown in Table 3:

table 3

The cell PRB utilization rates of the primary cell and the secondary cell are 100% and 100%, respectively.

After the primary cell and the secondary cell respectively process the information of UE1, the information to UE1 and the cell is shown in Table 4:

Table 4

Therefore, for UE1, the offload ratio between primary and secondary cells is 0.27:0.27, which is 1:1; for UE2, the offload ratio between primary and secondary cells is 0.27:0.03, which is 9:1.

Example 3:

Assuming that the current primary cell and secondary cell are working normally, 256QAM coding is not enabled, two UEs (UE1 and UE2) are connected to the primary cell and secondary cell in a dual connection mode, and these two UEs are currently performing downlink packet filling services .

The collected information of UE1 and UE2 in the primary cell and the secondary cell is shown in Table 5.

table 5

The cell PRB utilization rates of the primary cell and the secondary cell are 100% and 100%, respectively.

After the primary cell and the secondary cell respectively process the information of UE1, the information to UE1 and the cell is shown in Table 6:

Table 6

Therefore, for UE1, the offload ratio between the primary cell and the secondary cell is 0.04:0.27, which is 4:27; for UE2, the offload ratio between the primary cell and the secondary cell is 0.27:0.03, which is 9:1.

Embodiment four:

This embodiment provides a traffic distribution management device capable of implementing the foregoing traffic distribution management method, please refer to FIG. 5:

The flow allocation management device 50 includes a ratio determination module 502 and a flow allocation module 504. The ratio determination module 502 is used to determine the offload factor of the primary cell to the target terminal and the offload factor of the secondary cell to the target terminal. The offload factor is based on the cell downlink The resource information and the downlink channel condition information of the target terminal in the cell and the downlink service quality information are determined; the traffic allocation module 504 is used to allocate the target terminal in the downlink of the primary cell and the secondary cell according to the traffic allocation ratio formed by the offload factor of the primary cell and the secondary cell flow.

In some examples of this embodiment, the ratio determining module 502 can separately obtain and determine the offload factors of the primary cell and the secondary cell. For a target terminal, the offload factor of the primary cell can be recorded as a _primary , and the offload factor of the secondary cell can be recorded as a _secondary , a _primary : a _secondary is the traffic distribution ratio composed of the primary subdivision flow factor and the secondary subdivision flow factor, which represents the total downlink traffic of the target terminal, the primary cell will be divided into a _primary /(a _primary + a _Auxiliary ), and the auxiliary cell will get a _auxiliary /(a _main + a _auxiliary ).

In this embodiment, the offload factor of a cell to a terminal can be determined based on the cell downlink resource information of the cell and the downlink channel condition information and downlink service quality information of the terminal in the cell, for example, the offload factor of the primary cell to a terminal a _Master can be determined according to the cell downlink resource information of the primary cell and the downlink channel condition information and downlink service quality information of the terminal in the primary cell. The offload factor a _{secondary of the} secondary cell for a terminal can be determined according to the cell downlink resource information of the secondary cell and the downlink channel condition information and downlink service quality information of the terminal in the secondary cell.

When determining the offload factor of the primary cell to the target terminal, the ratio determining module 502 can obtain the primary cell’s own cell downlink resource information collected by the primary cell, as well as the primary cell’s collected downlink channel information and downlink channel information of the target terminal in the primary cell. Service instruction information, and then determine the offload factor of the primary cell to the target terminal based on this information.

When determining the offload factor of the secondary cell to the target terminal, the ratio determining module 502 can also obtain the secondary cell’s own cell downlink resource information collected by the secondary cell, and the secondary cell’s collected downlink channel information of the target terminal in the secondary cell and Downlink service instruction information, and then determine the offload factor of the secondary cell to the target terminal based on this information. However, in some other examples of this embodiment, after the secondary cell collects relevant information, it can directly calculate the offload factor of the secondary cell to the target terminal, and then send the offload factor to the ratio determination module 502, so that the ratio is determined The module 502 obtains the offload factor of the secondary cell to the target terminal.

In the related protocol, although the primary cell and the secondary cell can communicate directly, the direct communication relies on the communication interface specified in the existing protocol, and it is not determined in the related protocol that these communication interfaces can transmit the offload factor of the secondary cell to a terminal Or it transmits information used to determine the offload factor of the secondary cell to the terminal. Therefore, in some examples of this embodiment, the cell downlink resource information sent by the secondary cell to the ratio determination module 502, and the target terminal collected by the secondary cell is in the secondary cell The downlink channel condition information and downlink service command information can be sent to the primary cell side through the network management system. Similarly, the offload factor of the secondary cell to the target terminal calculated by the secondary cell itself can also be sent to the primary cell through the network management system. Please refer to a schematic diagram of the communication system shown in FIG. 2. In FIG. 2, the primary and secondary cells belong to different base stations, and the traffic distribution management device 50 is deployed on the primary base station 21, between the primary base station 21 and the secondary base station 22 Communication can be carried out through the network management system 23. If the secondary cell under the secondary base station 22 determines the offload factor of the secondary cell to the target terminal after information collection, the secondary cell can pass the calculated secondary subdivision flow factor through the network management system 23. It is transmitted to the primary base station 21, so that the ratio determination module 502 on the primary base station 21 side obtains the offload factor of the secondary cell. If the secondary cell under the secondary base station 22 only collects information, and the primary cell determines the offload factor of the primary cell and the offload factor of the secondary cell according to the collected information, then the secondary base station 22 can collect the secondary cell itself from the secondary cell. The downlink resource information of the cell, as well as the downlink channel condition information and downlink service quality information of the target terminal in the secondary cell are sent to the primary base station 21 through the network management system 23, so that the ratio determination module 502 can obtain the relevant information.

In some examples of this embodiment, the downlink resource information of the cell includes but is not limited to the PRB utilization rate of the cell. In addition, it may also include any of the CPU utilization and memory utilization on the base station side.

The so-called downlink channel condition information may include at least one of MCS, SNR, SINR, RSRP, RSRQ, and CQI of the terminal. In some examples of this embodiment, the downlink channel condition of the target terminal may be characterized by the MCS of the target terminal. Therefore, the downlink channel condition information corresponding to the target terminal is MCS.

The downlink service quality information includes but is not less than the BLER of the terminal.

In some examples of this embodiment, the cell downlink resource information includes the cell PRB utilization, the downlink channel condition information includes the downlink MCS of the target terminal in the corresponding cell, and the downlink service quality information includes the downlink BLER of the target terminal in the corresponding cell; The shunt factor a of the target terminal is _main :

The offload factor a of the _secondary cell to the target terminal _secondary :

Among them, SE _primary is the spectrum efficiency corresponding to the MCS of the target terminal in the primary cell; BLER _primary is the downlink BLER of the target terminal in the primary cell; cell PRB utilization is the _primary cell PRB utilization; SE _secondary is the target terminal in the secondary cell The spectrum efficiency corresponding to the MCS of the cell; BLER is _supplemented by the downlink BLER of the target terminal in the secondary cell; the cell PRB utilization rate is supplemented by the PRB utilization rate of the _secondary cell;

f1, f2, and f3 are calculation factors, and the values can be set by network administrators based on experience values. In some examples of this embodiment, the values of f1, f2, and f3 are fixed, but in other examples of this embodiment, the network administrator can adjust the values of f1, f2, and f3 according to the actual situation. That is, in different calculation processes, f1, f2, and f3 may be different.

It is understandable that after the ratio determining module 502 determines the offload factor of the primary cell to the target terminal and the offload factor of the secondary cell to the target terminal, it determines the traffic allocation ratio of the target terminal in the primary cell and the secondary cell. In some examples, before determining the offload factor of the primary cell to the target terminal and the offload factor of the secondary cell to the target terminal in the foregoing manner, the ratio determination module 502 may first determine whether there is at least one current load in the primary cell and the secondary cell. Overrun, if the judgment result is no, that is, the current load of the primary cell and secondary cell are both overrun, the ratio determination module 502 can determine the primary cell's offload factor and the secondary cell's offload factor in the aforementioned manner, but if the judgment result If yes, it means that the current load of at least one of the primary cell and the secondary cell exceeds the limit. Therefore, the ratio determination module 502 can determine the traffic distribution ratio of the target terminal in the primary cell and the secondary cell in other ways, for example, in one of the examples Among them, the traffic allocation ratio of the primary cell and the secondary cell to the target terminal is determined according to the downlink resource information of the primary cell and the downlink resource information of the secondary cell. For example, if the downlink resource information of the cell is the cell PRB, the traffic allocation ratio between the primary cell and the secondary cell of the target terminal may be _primary cell PRB utilization rate: _secondary cell PRB utilization rate.

After the ratio determining module 502 determines the traffic allocation ratio of the target terminal in the primary cell and the secondary cell, the traffic allocation module 504 can control the downlink traffic allocation of the target terminal according to the traffic allocation ratio, so that the target terminal is in the primary cell and the secondary cell. The traffic allocation conforms to the resources of the primary cell and the secondary cell, and also takes into account the service quality and channel conditions of the target terminal in the primary cell, so that the downlink traffic of the target terminal can be effectively transmitted, and the transmission efficiency of the target terminal’s downlink traffic is improved. Enhance the user experience on the target terminal side. At the same time, the total traffic carried by the primary cell and the secondary cell is increased, and the throughput of the communication system is improved.

It is understandable that if the primary cell and secondary cell originally transmit a lot of traffic and have reached the desired level, the primary cell does not need to adjust the target terminal's traffic in the primary cell according to the newly determined traffic distribution ratio. And the traffic in the secondary cell. That is, the original traffic distribution strategy is already relatively good, and there is no need to adjust according to the newly determined traffic distribution strategy, and only the current traffic distribution strategy needs to be maintained. Therefore, in some examples of this embodiment, if the actual total downlink traffic of the primary cell and the secondary cell have reached the corresponding expected total downlink traffic, that is, the actual total downlink traffic of the primary cell reaches the expected total downlink traffic corresponding to the primary cell. If the actual total downlink traffic of the secondary cell reaches the expected total downlink traffic corresponding to the secondary cell, there is no need to adjust the traffic distribution of the target terminal in the primary cell and the secondary cell according to the newly determined traffic distribution strategy. However, if the actual total downlink traffic of at least one of the primary cell and the secondary cell does not reach the corresponding expected total downlink traffic, the primary cell can allocate the target terminal to the primary cell and the secondary cell according to the traffic distribution ratio determined according to the offload factor. Downstream traffic.

It is understandable that the primary cell and the secondary cell in the dual-connection scenario do not serve a certain terminal. Under normal circumstances, the primary cell and the secondary cell are connected to multiple terminals at the same time. In some examples in this embodiment, the primary cell The cell can use these terminals as target terminals, determine the offload factor of the primary cell and the secondary cell to each target terminal, and then control and manage the traffic of each target terminal in the primary cell and the secondary cell according to the traffic distribution ratio. However, considering the huge number of terminals in a cell, if the traffic allocation of the primary cell to each terminal is adjusted in the aforementioned manner, the burden on the primary cell will be relatively high, and the effect after one adjustment is good or bad It cannot be completely determined before the adjustment. Therefore, after the adjustment, the problem of poor adjustment effect may also occur. Therefore, in some examples of this embodiment, see FIG. 6, the flow distribution management device 50 includes a ratio determination module 502 In addition to the traffic distribution module 504, it also includes a terminal selection module 500. Before determining the offload factor of the primary cell to the target terminal and the offload factor of the secondary cell to the target terminal, the terminal selection module 500 first determines the target terminal:

First, the terminal selection module 500 obtains the terminal downlink resource information of each terminal in the primary cell and the secondary cell. In some examples of this embodiment, the terminal downlink resource information may refer to the PRB utilization rate of the terminal. Of course, those skilled in the art can understand that the terminal downlink resource information may also be other information of the terminal, such as the CPU of the terminal. Utilization, or memory utilization, etc.

After acquiring the terminal downlink resource information of each terminal in the primary cell and the secondary cell, the terminal selection module 500 may select a target terminal from each terminal according to the terminal downlink resource information of each terminal. For example, if the downlink resource information of the terminal is the PRB utilization rate of the terminal, the terminal selection module 500 may preferentially select the terminal with a higher PRB utilization rate among the terminals as the target terminal: in an example of this embodiment, the terminal selection module 500 can select 10 terminals as target terminals according to the selection order of terminal PRB utilization from high to low. In this example, when the terminal selection module 500 determines the target terminal, it is determined according to a preset number. However, in other examples of this embodiment, the terminal selection module 500 can vary from high to high according to the terminal PRB utilization rate. The low selection order selects the top 10% terminals as target terminals.

It is understandable that the process of adjusting the terminal traffic distribution strategy by the primary cell is not only performed once, but may be executed cyclically. Therefore, after adjusting the traffic distribution strategy of some terminals according to the corresponding traffic distribution ratio, These terminals can be marked as "adjusted terminals". In the next adjustment process, when the target terminal is selected, the terminal selection module 500 can select a terminal that has not been marked as an adjusted terminal as the target terminal, which can avoid always targeting some The terminal's traffic distribution is adjusted, and another part of the terminal always does not get the opportunity of traffic distribution adjustment. If the terminal selection module 500 finds that all the terminals have been marked as adjusted terminals when determining the target terminal, the terminal selection module 500 may remove the adjusted marks of each terminal, and reselect the target terminal from all terminals, And mark the adjusted terminal again.

The traffic distribution management apparatus 50 provided in this embodiment can be deployed on the main base station side, and the functions of the ratio determination module and the traffic distribution module can be implemented by the processor and the communication unit on the main base station side.

The traffic allocation management device provided in this embodiment can determine the cell-to-terminal offload factor based on the cell's cell downlink resource information, the terminal's downlink channel condition information in the cell, and the downlink service quality information, and then based on each cell-to-terminal The offload factor determines the traffic allocation ratio between the primary cell and the secondary cell, and then adjusts the downlink traffic of the terminal in the primary and secondary cells according to the traffic allocation ratio, so that when the primary and secondary cells allocate traffic, the primary and secondary cells are comprehensively considered The resource situation, as well as the channel situation and service quality of the terminal in the primary and secondary cells, improve the rationality of the primary cell to terminal traffic allocation plan, enhance the transmission efficiency of terminal downlink traffic, and ensure that the total traffic of the primary and secondary cells is increased .

Embodiment five:

This embodiment provides a storage medium that can store one or more computer programs that can be read, compiled, and executed by one or more processors. In this embodiment, the storage medium can store A flow distribution management program, which can be used by one or more processors to execute a process for implementing any one of the flow distribution management methods introduced in the foregoing embodiments.

In addition, this embodiment provides a base station, as shown in FIG. 7: the base station 70 includes a processor 71, a memory 72, and a communication bus 73 for connecting the processor 71 and the memory 72, where the memory 72 may store traffic distribution for the aforementioned storage. The storage medium of the management program. The processor 71 may read the flow distribution management program, compile and execute the flow of the flow distribution management method introduced in the foregoing embodiment:

The processor 71 first determines the offload factor of the primary cell to the target terminal and the offload factor of the secondary cell to the target terminal, where the offload factor is determined according to the cell downlink resource information of the cell and the downlink channel condition information and downlink service quality information of the target terminal in the cell; Then, the processor 71 allocates the downlink traffic of the target terminal in the primary cell and the secondary cell according to the traffic distribution ratio formed by the offload factors of the primary cell and the secondary cell.

In some examples of this embodiment, when the processor 71 determines the offload factor of the primary cell to the target terminal and the offload factor of the secondary cell to the target terminal, it may first obtain the cell downlink resource information of the primary cell and the secondary cell, and the primary cell and The downlink channel condition information and downlink service quality information of each terminal in the secondary cell; then, the offload of the primary cell to the target terminal is determined according to the cell downlink resource information of the primary cell, the target terminal’s downlink channel condition information in the primary cell and the downlink service quality information Factor; and determine the offload factor of the secondary cell to the target terminal according to the cell downlink resource information of the secondary cell, the downlink channel condition information of the target terminal in the secondary cell, and the downlink service quality information.

In some examples of this embodiment, when the processor 71 obtains the cell downlink resource information of the primary cell and the secondary cell, it can collect the cell downlink resource information of the primary cell and the downlink channel condition information and downlink service quality of each terminal in the primary cell. Information; and, receiving the cell downlink resource information of the secondary cell collected by the secondary cell and the downlink channel condition information and downlink service quality information of each terminal in the secondary cell.

It is understandable that the cell downlink resource information of the secondary cell collected by the receiving secondary cell and the downlink channel condition information and downlink service quality information of each terminal in the secondary cell include:

The processor 71 receives the cell downlink resource information of the secondary cell and the downlink channel condition information and downlink service quality information of each terminal in the secondary cell sent by the secondary cell through the network management system.

In some examples of this embodiment, when the processor 71 determines the offload factor of the primary cell to the target terminal, it can obtain the cell downlink resource information of the primary cell, as well as the downlink channel condition information and downlink service quality information of each terminal in the primary cell; Then, determine the offload factor of the primary cell to the target terminal according to the cell downlink resource information of the primary cell, the downlink channel condition information of the target terminal in the primary cell, and the downlink service quality information;

When the processor 71 determines the offload factor of the target terminal in the secondary cell, it may directly receive the offload factor of the secondary cell to the target terminal sent by the secondary cell.

In some examples of this embodiment, before the processor 71 determines the offload factor of the primary cell to the target terminal and the offload factor of the secondary cell to the target terminal, it may also first obtain terminal downlink resource information of each terminal in the primary cell and the secondary cell; The target terminal is determined from each terminal according to the terminal downlink resource information of each terminal in the primary cell and the secondary cell.

In some examples of this embodiment, the terminal downlink resource information includes the terminal PRB utilization rate. When the processor 71 determines the target terminal among the terminals according to the terminal downlink resource information, it can select from high to low according to the terminal PRB utilization rate. Select a preset number or a preset proportion of terminals as target terminals in sequence.

In some examples of this embodiment, the processor 71 selects a preset number or a preset ratio of terminals as the target terminal from the terminals that have not been marked as adjusted terminals according to the selection order of terminal PRB utilization from high to low.

In some examples of this embodiment, the processor 71 allocates the target terminal according to the traffic distribution ratio formed by the offload factors of the primary cell and the secondary cell before the downlink traffic of the primary cell and the secondary cell, and may also determine the primary cell and the secondary cell. The actual total downlink traffic of at least one does not reach the corresponding expected total downlink traffic.

In some examples of this embodiment, before the processor 71 determines the offload factor of the primary cell to the target terminal and the offload factor of the secondary cell to the target terminal, it may also determine that the cell loads of the primary cell and the secondary cell have not exceeded the limit.

If it is determined that the load of at least one of the primary cell and the secondary cell is still over the limit, the traffic allocation ratio of the primary cell and the secondary cell to the target terminal is determined according to the downlink resource information of the primary cell and the downlink resource information of the secondary cell.

In some examples of this embodiment, the cell downlink resource information includes the cell PRB utilization, the downlink channel condition information includes the MCS of the target terminal in the corresponding cell, and the downlink service quality information includes the downlink BLER of the target terminal in the corresponding cell; The shunt factor a of the terminal is _main :

The offload factor a of the _secondary cell to the target terminal _secondary :

Among them, SE _primary is the spectrum efficiency corresponding to the MCS of the target terminal in the primary cell; BLER _primary is the downlink BLER of the target terminal in the primary cell; cell PRB utilization is the _primary cell PRB utilization; SE _secondary is the target terminal in the secondary cell The spectrum efficiency corresponding to the MCS of the cell; BLER is _supplemented by the downlink BLER of the target terminal in the secondary cell; the cell PRB utilization rate is supplemented by the PRB utilization rate of the _secondary cell;

f1, f2, and f3 are calculation factors.

The beneficial effects of the present invention are:

The traffic distribution management method, device, base station, and storage medium provided by the embodiments of the present invention determine the offload factor of the primary cell to the target terminal and the offload factor of the secondary cell to the target terminal, and the traffic is formed according to the offload factor of the primary cell and the secondary cell The allocation ratio allocates the downlink traffic of the target terminal in the primary cell and the secondary cell. Since the offload factor of the target terminal in a cell is determined based on the cell downlink resource information and the downlink channel condition information and downlink service quality information of the target terminal in the cell, the offload factor of the target terminal in the primary cell and the secondary cell are determined. When considering the offload factor of the primary cell and secondary cell, as well as the target terminal’s own downlink resources and channel conditions in the primary cell and secondary cell, the traffic allocation ratio determined by combining these factors can be more reasonable to the primary cell, The secondary cell allocates the downlink traffic of the target terminal, so that the primary cell and the secondary cell can more efficiently transmit the downlink traffic of the target terminal, and improve the traffic throughput of the base station.

It can be understood that the technical means in the various embodiments of the present invention can be used in combination without conflict.

Obviously, those skilled in the art should understand that all or some of the steps in the method disclosed above, the functional modules/units in the system, and the device can be implemented as software (which can be implemented by program code executable by a computing device) , Firmware, hardware and their appropriate combination. In hardware implementations, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may consist of several physical components. The components are executed cooperatively. Some physical components or all physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit . Such software may be distributed on a computer-readable medium and executed by a computing device, and in some cases, the steps shown or described may be executed in a different order than here. The computer-readable medium may include computer storage Medium (or non-transitory medium) and communication medium (or temporary medium). As is well known to those of ordinary skill in the art, the term computer storage medium includes volatile and non-volatile memory implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Flexible, removable and non-removable media. Computer storage media include but are not limited to RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cassette, tape, magnetic disk storage or other magnetic storage devices, or Any other medium used to store desired information and that can be accessed by a computer. In addition, as is well known to those of ordinary skill in the art, communication media usually contain computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as carrier waves or other transmission mechanisms, and may include any information delivery media . Therefore, the present invention is not limited to any specific combination of hardware and software.

The above content is a further detailed description of the embodiments of the present invention in combination with specific implementations, and it cannot be considered that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims (15)

1. A flow distribution management method, including:

   Determine the offload factor of the primary cell to the target terminal and the offload factor of the secondary cell to the target terminal. The offload factor is based on the cell downlink resource information of the cell and the downlink channel information and downlink service quality of the target terminal in the cell Information confirmed;

   Allocate the downlink traffic of the target terminal in the primary cell and the secondary cell according to the traffic distribution ratio formed by the offload factors of the primary cell and the secondary cell.
2. The traffic distribution management method according to claim 1, wherein said determining the offload factor of the primary cell to the target terminal and the offload factor of the secondary cell to the target terminal comprises:

   Acquiring cell downlink resource information of the primary cell and the secondary cell, and downlink channel condition information and downlink service quality information of each terminal in the primary cell and the secondary cell;

   Determine the offload factor of the primary cell to the target terminal according to the cell downlink resource information of the primary cell, the downlink channel condition information of the target terminal in the primary cell, and the downlink service quality information; and according to the cell of the secondary cell The downlink resource information, the downlink channel condition information of the target terminal in the secondary cell, and the downlink service quality information determine the offload factor of the secondary cell to the target terminal.
3. The traffic allocation management method according to claim 2, wherein said obtaining cell downlink resource information of the primary cell and the secondary cell comprises:

   Collect the cell downlink resource information of the primary cell and the downlink channel condition information and downlink service quality information of each terminal in the primary cell; and, receive the secondary cell to collect the cell downlink resource information of the secondary cell and each terminal Downlink channel condition information and downlink service quality information in the secondary cell.
4. The traffic distribution management method according to claim 3, wherein said receiving said secondary cell collects cell downlink resource information of said secondary cell and downlink channel condition information and downlink service quality information of each terminal in said secondary cell include:

   Receive cell downlink resource information of the secondary cell and downlink channel condition information and downlink service quality information of each terminal in the secondary cell that are sent by the secondary cell through a network management system.
5. The traffic distribution management method according to claim 1, wherein the determining the offload factor of the primary cell to the target terminal comprises:

   Acquiring cell downlink resource information of the primary cell, as well as downlink channel condition information and downlink service quality information of each terminal in the primary cell;

   Determine the offload factor of the primary cell to the target terminal according to the cell downlink resource information of the primary cell, the downlink channel condition information of the target terminal in the primary cell, and the downlink service quality information;

   The determining the offload factor of the target terminal in the secondary cell includes:

   Receiving the offload factor of the secondary cell to the target terminal sent by the secondary cell.
6. 5. The traffic distribution management method according to any one of claims 1-5, wherein before the determining the offload factor of the primary cell to the target terminal and the offload factor of the secondary cell to the target terminal, the method further comprises:

   Acquiring terminal downlink resource information of each terminal in the primary cell and the secondary cell;

   The target terminal is determined from each terminal according to the terminal downlink resource information of each terminal in the primary cell and the secondary cell.
7. The method for traffic allocation management according to claim 6, wherein the terminal downlink resource information includes a terminal physical resource block (PRB) utilization rate, and then the target terminal determined from each of the terminals according to the terminal downlink resource information includes :

   A preset number or a preset proportion of terminals are selected as target terminals according to the selection order of the terminal PRB utilization rate from high to low.
8. 7. The traffic distribution management method according to claim 7, wherein the selecting a preset number or a preset ratio of terminals as the target terminal according to the selection order of the terminal PRB utilization rate from high to low comprises:

   A preset number or a preset proportion of terminals are selected as target terminals from the terminals that have not been marked as adjusted terminals according to the selection sequence of the terminal PRB utilization rate from high to low.
9. 5. The traffic distribution management method according to any one of claims 1 to 5, wherein the distribution of the target terminal between the primary cell and the primary cell is based on the traffic distribution ratio constituted by the offload factors of the primary cell and the secondary cell. Before the downlink traffic of the secondary cell, it also includes:

   It is determined that the actual total downlink traffic of at least one of the primary cell and the secondary cell does not reach the corresponding expected total downlink traffic.
10. 5. The traffic distribution management method according to any one of claims 1-5, wherein before the determining the offload factor of the primary cell to the target terminal and the offload factor of the secondary cell to the target terminal, the method further comprises:

    It is determined that the cell loads of the primary cell and the secondary cell have not exceeded the limit.
11. 10. The traffic distribution management method of claim 10, wherein the traffic distribution management method further comprises:

    If it is determined that the load of at least one of the primary cell and the secondary cell is still beyond the limit, determine the pair of the primary cell and the secondary cell according to the cell downlink resource information of the primary cell and the downlink resource information of the secondary cell The traffic distribution ratio of the target terminal.
12. The traffic allocation management method according to any one of claims 1 to 5, wherein the cell downlink resource information includes cell PRB utilization, and the downlink channel condition information includes the modulation and coding mode MCS of the target terminal in the corresponding cell, so said downlink quality information service terminal includes a target cell in a downlink block error rate corresponding to the BLER; shunting the primary factor of the target cell is a _main terminal:

    

    The offload factor a of the secondary cell to the target terminal is _secondary :

    

    Wherein, SE _main terminal of the target cell in the primary MCS corresponding to the spectrum efficiency; BLER _primary downlink BLER to the target terminal in the primary cell; PRB usage in _{the major} cell is the primary cell PRB Utilization; SE _secondary is the spectrum efficiency corresponding to the MCS of the target terminal in the secondary cell; BLER _secondary is the downlink BLER of the target terminal in the secondary cell; cell PRB utilization _secondary is that of the secondary cell PRB utilization rate;

    The f1, f2, and f3 are calculation factors.
13. A flow distribution management device, including:

    The ratio determination module is used to determine the offload factor of the primary cell to the target terminal and the offload factor of the secondary cell to the target terminal, the offload factor being based on the cell downlink resource information of the cell and the downlink channel of the target terminal in the cell Situation information and downlink service quality information determination;

    The traffic distribution module is configured to distribute the downlink traffic of the target terminal in the primary cell and the secondary cell according to the traffic distribution ratio formed by the offload factors of the primary cell and the secondary cell.
14. A base station, including a processor, a memory, and a communication bus; among them,

    The communication bus is used to realize connection and communication between the processor and the memory;

    The processor is configured to execute one or more programs stored in the memory to implement the steps of the traffic distribution management method according to any one of claims 1 to 12.
15. A storage medium storing one or more programs, wherein the one or more programs can be executed by one or more processors to implement the traffic distribution management according to any one of claims 1 to 12 Method steps.

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