CN112399481A - Flow distribution management method, device, base station and storage medium - Google Patents

Flow distribution management method, device, base station and storage medium Download PDF

Info

Publication number
CN112399481A
CN112399481A CN201910745286.9A CN201910745286A CN112399481A CN 112399481 A CN112399481 A CN 112399481A CN 201910745286 A CN201910745286 A CN 201910745286A CN 112399481 A CN112399481 A CN 112399481A
Authority
CN
China
Prior art keywords
cell
downlink
target terminal
terminal
secondary cell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910745286.9A
Other languages
Chinese (zh)
Inventor
张勇
郭松
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Priority to CN201910745286.9A priority Critical patent/CN112399481A/en
Priority to PCT/CN2020/103085 priority patent/WO2021027498A1/en
Publication of CN112399481A publication Critical patent/CN112399481A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/08—Load balancing or load distribution
    • H04W28/082—Load balancing or load distribution among bearers or channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/08—Load balancing or load distribution

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention provides a traffic distribution management method, a traffic distribution management device, a base station and a storage medium, wherein downlink traffic of a target terminal in a primary cell and downlink traffic of a target terminal in a secondary cell are distributed according to a traffic distribution proportion formed by the traffic distribution factors of the primary cell and the secondary cell by determining the traffic distribution factor of the primary cell to the target terminal and the traffic distribution factor of the secondary cell to the target terminal. When determining the splitting factor of the target terminal in the primary cell and the splitting factor of the target terminal in the secondary cell, the downlink resources of the primary cell and the secondary cell are considered, and the downlink resources and channel conditions of the target terminal in the primary cell and the secondary cell are considered, so that the downlink flow of the target terminal can be more reasonably distributed to the primary cell and the secondary cell by combining the flow distribution proportion determined by the factors, the transmission of the downlink flow of the target terminal can be more effectively realized by the primary cell and the secondary cell, and the flow throughput of the base station is improved.

Description

Flow distribution management method, device, base station and storage medium
Technical Field
The present invention relates to the field of communications, and in particular, to a method and an apparatus for traffic distribution management, a base station, and a storage medium.
Background
With the rapid development of wireless communication technology, dual connectivity technology is currently a very important wireless communication technology. The dual connectivity means that one terminal simultaneously connects to the primary cell and the secondary cell over the air interface, and downlink traffic of the terminal can be transmitted to the terminal through the primary cell and the secondary cell simultaneously. However, the traffic management strategy in the dual connectivity 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 time depends on how much traffic it actually transmits to the terminal at the previous time, and also for the secondary cell.
In the traffic management scheme, the downlink traffic of the terminal in one cell is only related to the cell and is unrelated to another cell, so that the traffic distribution does not consider the traffic transmission situation of the terminal in another cell, the primary cell is isolated from the secondary cell, the traffic distribution of the terminal in the primary cell and the secondary cell is not reasonable, the service experience of the terminal side is affected, and the traffic of the base station side is not high.
Disclosure of Invention
The traffic distribution management method, the traffic distribution management device, the base station and the storage medium provided by the embodiment of the invention mainly solve the technical problems that traffic distribution strategies of a main cell and an auxiliary cell in the related technology are isolated, so that the traffic distribution of a terminal in the main cell and the auxiliary cell is unreasonable, and the service experience of the terminal side is influenced to limit downlink traffic transmission of the base station side.
To solve the foregoing technical problem, an embodiment of the present invention provides a traffic distribution management method, including:
determining a distribution factor of a main cell to a target terminal and a distribution factor of an auxiliary cell to the target terminal, wherein the distribution factors are determined according to cell downlink resource information of the cell, downlink channel condition information of the target terminal in the cell and downlink service quality information;
and distributing the downlink flow of the target terminal in the main cell and the auxiliary cell according to a flow distribution proportion formed by the flow distribution factors of the main cell and the auxiliary cell.
An embodiment of the present invention further provides a traffic distribution management apparatus, including:
the system comprises a proportion determining module, a distributing module and a distributing module, wherein the proportion determining module is used for determining a distributing factor of a main cell to a target terminal and a distributing factor of an auxiliary cell to the target terminal, and the distributing factors are determined according to cell downlink resource information of the cell, downlink channel condition information of the target terminal in the cell and downlink service quality information;
and the flow distribution module is used for distributing the downlink flow of the target terminal in the primary cell and the secondary cell according to a flow distribution proportion formed by the flow distribution factors of the primary cell and the secondary cell.
The embodiment of the invention also provides a base station, which comprises a processor, a memory and a communication bus;
the communication bus is used for realizing connection 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 described above.
An embodiment of the present invention further provides a storage medium, where one or more programs are stored, and the one or more programs may be executed by one or more processors to implement the steps of the traffic distribution management method.
The invention has the beneficial effects that:
according to the traffic distribution management method, device, base station and storage medium provided by the embodiment of the invention, the downlink traffic of the target terminal in the primary cell and the downlink traffic of the target terminal in the secondary cell are distributed according to the traffic distribution proportion formed by the flow distribution factors of the primary cell and the secondary cell by determining the flow distribution factor of the primary cell to the target terminal and the flow distribution factor of the secondary cell to the target terminal. The flow distribution proportion determined by combining the factors can distribute the downlink flow of the target terminal to the main cell and the auxiliary cell more reasonably, so that the main cell and the auxiliary cell can more effectively realize the transmission of the downlink flow of the target terminal, and the flow throughput of the base station is improved.
Additional features and corresponding advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a flowchart of a traffic distribution management method according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a communication system shown in a first embodiment of the present invention;
fig. 3 is a flowchart of determining a target terminal according to a first embodiment of the present invention;
fig. 4 is a flowchart of a traffic distribution management method according to a second embodiment of the present invention;
fig. 5 is a schematic structural diagram of a traffic distribution management apparatus according to a fourth embodiment of the present invention;
fig. 6 is a schematic structural diagram of a traffic distribution management apparatus according to a fourth embodiment of the present invention;
fig. 7 is a schematic hardware structure diagram of a base station according to a fifth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention are described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The first embodiment is as follows:
in order to solve the problem that in the related art, an isolated traffic distribution management scheme is still used for a primary cell and a secondary cell in a dual connectivity scenario, which causes unreasonable traffic distribution of a terminal in the primary cell and the secondary cell, affects user experience of the terminal, and causes low traffic of a base station, the embodiment provides a traffic distribution management method, which is applied to the primary cell and implemented by the base station on the primary cell side, and please refer to fig. 1:
s102: and determining the distribution factor of the main cell to the target terminal and the distribution factor of the auxiliary cell to the target terminal.
In this embodimentIn some examples, a base station where the primary cell is located may obtain and determine the splitting factors of the primary cell and the secondary cell, respectively, and for one target terminal, the splitting factor of the primary cell may be denoted as aMaster and slaveThe splitting factor of the secondary cell can be recorded as aAuxiliary device，aMaster and slave：aAuxiliary deviceThat is, the flow distribution proportion formed by the primary cell flow factor and the secondary cell flow factor represents the total downlink flow of the target terminal, and the primary cell will be divided into aMaster and slave/(aMaster and slave+aAuxiliary device) And the secondary cell will be divided into aAuxiliary device/(aMaster and slave+aAuxiliary device)。
In this embodiment, the splitting factor of one cell to one terminal may be determined according to the cell downlink resource information of the cell, the downlink channel condition information of the terminal in the cell, and the downlink service quality information, for example, the splitting factor a of the main cell to one terminalMaster and slaveThe downlink resource information of the main cell and the downlink channel condition information and the downlink service quality information of the terminal in the main cell can be determined. And the shunting factor a of the secondary cell to one terminalAuxiliary deviceThe downlink resource information of the secondary cell and the downlink channel condition information and the downlink service quality information of the terminal in the secondary cell can be determined.
When determining the distribution factor of the main cell to the target terminal, the base station may obtain cell downlink resource information of the main cell itself, which is acquired by the main cell, and downlink channel condition information and downlink service instruction information of the target terminal in the main cell, which are acquired by the main cell, and then determine the distribution factor of the main cell to the target terminal according to the information.
When determining the distribution factor of the target terminal by the secondary cell, the base station may also obtain cell downlink resource information of the secondary cell itself, which is acquired by the secondary cell, and downlink channel condition information and downlink service instruction information of the target terminal in the secondary cell, which are acquired by the secondary cell, and then determine the distribution factor of the target terminal by the secondary cell according to the information. However, in some other examples of this embodiment, after the secondary cell acquires the relevant information, the secondary cell may directly calculate the splitting factor of the secondary cell to the target terminal, and then send the splitting factor to the base station, so that the base station on the primary cell side obtains the splitting factor of the secondary cell to the target terminal.
In the relevant protocol, although the primary cell and the secondary cell can communicate directly, the direct communication depends on the communication interfaces specified by the existing protocol, and it is not determined in the relevant protocol that these communication interfaces can transmit the splitting factor of the secondary cell to a terminal or transmit information for determining the splitting factor of the secondary cell to the terminal, so 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 downlink channel condition information and the downlink service instruction information of the target terminal in the secondary cell acquired by the secondary cell can be sent to the primary cell side through the network management system, and similarly, the splitting 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. Referring to a schematic diagram of the communication system shown in fig. 2, a main cell and a secondary cell belong to different base stations, the main base station 21 and the secondary base station 22 may communicate through the network management system 23, and if the secondary cell under the secondary base station 22 determines the splitting factor of the secondary cell to the target terminal after information acquisition is performed, the secondary cell may transmit the calculated splitting factor of the secondary cell to the main base station 21 through the network management system 23, so that the main base station 21 obtains the splitting factor of the secondary cell. If the secondary cell under the secondary base station 22 only performs information acquisition, and the primary cell determines the splitting factor of the primary cell and the splitting factor of the secondary cell according to the acquired information, the secondary base station 22 may send the cell downlink resource information of the secondary cell acquired by the secondary cell, and the downlink channel condition information and the downlink service quality information of the target terminal in the secondary cell to the primary base station 21 through the network management system 23.
In some examples of this embodiment, the cell downlink Resource information includes, but is not limited to, PRB (Physical Resource Block) utilization of the cell. In addition, the method may further include any one of CPU utilization, memory utilization, and the like on the base station side.
The downlink Channel condition information may include at least one of Modulation and Coding Scheme (MCS), Signal-to-Noise Ratio (SNR), Signal-to-Interference Noise Ratio (SINR), Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), Channel Quality Indicator (CQI), and the like 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, a Block error rate (BLER) of the terminal.
In some examples of this embodiment, the cell downlink resource information includes a cell PRB utilization, the downlink channel condition information includes a downlink MCS of the target terminal in the corresponding cell, and the downlink service quality information includes a downlink BLER of the target terminal in the corresponding cell; shunting factor a of main cell to target terminalMaster and slave：
Figure BDA0002165352440000051
Shunting factor a of secondary cell to target terminalAuxiliary device：
Figure BDA0002165352440000061
Wherein SEMaster and slaveThe spectrum efficiency corresponding to the MCS of the target terminal in the main cell is obtained; BLERMaster and slaveA downlink BLER of a target terminal in a main cell; cell PRB utilizationMaster and slavePRB utilization for the primary cell; SEAuxiliary deviceThe spectrum efficiency corresponding to the MCS of the target terminal in the auxiliary cell is obtained; BLERAuxiliary deviceA downlink BLER of a target terminal in an auxiliary cell; cell PRB utilizationAuxiliary devicePRB utilization rate of the secondary cell;
f1, f2 and f3 are calculation factors, and values can be set by network management personnel according to empirical values. In some examples of the present embodiment, the values of f1, f2, and f3 are fixed, but in other examples of the present embodiment, network management personnel may adjust the values of f1, f2, and f3 according to actual situations, that is, in different calculation processes, f1, f2, and f3 may be different.
It can be understood that, after determining the splitting factor of the primary cell to the target terminal and the splitting factor of the secondary cell to the target terminal, the flow allocation proportion of the target terminal in the primary cell and the secondary cell is determined. In some examples, before determining the splitting factor of the primary cell for the target terminal and the splitting factor of the secondary cell for the target terminal in the foregoing manner, the base station on the primary cell side may determine whether at least one current load in the primary cell and the secondary cell is over-limit or not, if the determination result is no, that is, the current loads of the primary cell and the secondary cell are both over-limit, the base station in which the primary cell is located may determine the splitting factor of the primary cell and the splitting factor of the secondary cell in the foregoing manner, but if the determination result is yes, it indicates that at least one of the primary cell and the secondary cell is currently overloaded, and therefore, the base station may determine the traffic allocation ratio of the target terminal between the primary cell and the secondary cell in other manners, for example, in one example, the traffic allocation ratio of the primary cell and the secondary cell to the target terminal is determined according to the cell downlink resource information of the primary cell and the downlink resource information of the secondary cell. For example, if the cell downlink resource information is the cell PRB, the traffic allocation ratio of the target terminal in the primary cell and the secondary cell may be the cell PRB utilization ratioMaster and slave: cell PRB utilizationAuxiliary device。
S104: and distributing the downlink flow of the target terminal in the primary cell and the secondary cell according to the flow distribution proportion formed by the flow distribution factors of the primary cell and the secondary cell.
After the flow distribution proportion of the target terminal in the main cell and the auxiliary cell is determined, the main cell can control the downlink flow distribution of the target terminal according to the flow distribution proportion, so that the flow distribution of the target terminal in the main cell and the auxiliary cell accords with the resource condition of the main cell and the auxiliary cell, the service quality and the channel condition of the target terminal in the main cell are also considered, the downlink flow of the target terminal can be effectively transmitted, the transmission efficiency of the downlink flow of the target terminal is improved, and the user experience of the target terminal side is enhanced. Meanwhile, the total flow borne by the main cell and the auxiliary cell is improved, and the throughput of the communication system is improved.
It can be understood that, if the original transmitted traffic of the primary cell and the secondary cell is definitely very large and has reached the desired level, the primary cell may not adjust the traffic of the target terminal in the primary cell and the traffic in the secondary cell according to the newly determined traffic distribution ratio. That is, the original traffic distribution policy is already excellent, and only the current traffic distribution policy needs to be maintained without adjusting according to the newly determined traffic distribution policy. Therefore, in some examples of this embodiment, if the actual total downlink traffic of the primary cell and the secondary cell has already reached the corresponding desired total downlink traffic, that is, the actual total downlink traffic of the primary cell reaches the desired total downlink traffic corresponding to the primary cell, and the actual total downlink traffic of the secondary cell reaches the desired total downlink traffic corresponding to the secondary cell, it is not necessary to adjust the traffic distribution of the target terminal in the primary cell and the secondary cell according to the newly determined traffic distribution policy. However, if the actual total downlink traffic of at least one of the primary cell and the secondary cell does not reach the corresponding desired total downlink traffic, the primary cell may allocate the downlink traffic of the target terminal in the primary cell and the secondary cell according to the traffic allocation proportion determined according to the splitting factor.
It can be understood that the primary cell and the secondary cell in the dual connectivity scenario do not serve a certain terminal, and in a normal case, the primary cell and the secondary cell may connect multiple terminals at the same time. However, considering that the number of terminals in a cell is large, if the primary cell adjusts the traffic distribution of each terminal in the cell in the foregoing manner, the load of the primary cell is relatively high, and the effect after one adjustment cannot be completely determined before the adjustment, so that the problem of poor adjustment effect may also occur after the adjustment, and in some examples of this embodiment, before determining the splitting factor of the primary cell to the target terminal and the splitting factor of the secondary cell to the target terminal, the primary cell determines the target terminal first, please refer to a flowchart of determining the target terminal shown in fig. 3:
s302: and acquiring terminal downlink resource information of each terminal in the main cell and the auxiliary cell.
In some examples of this embodiment, the terminal downlink resource information may refer to a PRB utilization rate of the terminal, and of course, a person skilled in the art may understand that the terminal downlink resource information may also be other information of the terminal, such as a CPU utilization rate or a memory utilization rate of the terminal.
S304: and determining a target terminal from each terminal according to the terminal downlink resource information of each terminal in the main cell and the auxiliary 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 terminal downlink resource information is the PRB utilization of the terminal, the base station may preferentially select a terminal with a higher terminal PRB utilization as the target terminal: in an example of the embodiment, the base station may select 10 terminals as target terminals in the order of selection from high to low of the terminal PRB utilization. In this example, the base station determines the target terminal according to a preset number, but in other examples of the embodiment, the base station may select the first 10% of the terminals as the target terminals according to a selection order of the terminal PRB utilization from high to low.
It can be understood that, because the process of adjusting the terminal traffic allocation policy by the primary cell is not performed only once, but may be performed in a cyclic manner, after the traffic allocation policies of some terminals are adjusted according to the corresponding traffic allocation proportions, the terminals may be marked as "adjusted terminals", and in the next adjustment process, when selecting a target terminal, the base station may select a terminal that is not marked as an adjusted terminal as the target terminal, so that the problem that the traffic allocation of some terminals is always adjusted, and another part of terminals always cannot get a traffic allocation adjustment opportunity can be avoided. If the base station finds that all the terminals are marked as the adjusted terminals when determining the target terminal, the base station can remove the adjusted marks of all the terminals, reselect the target terminal from all the terminals, and mark the adjusted terminal again.
The traffic distribution management method provided in this embodiment may determine, based on cell downlink resource information of a cell, downlink channel condition information of a terminal in the cell, and downlink service quality information, a splitting factor of the cell to the terminal, further determine a traffic distribution ratio of a primary cell and a secondary cell based on the splitting factor of each cell to the terminal, and then adjust downlink traffic of the terminal in the primary cell and the secondary cell according to the traffic distribution ratio, so that when performing traffic distribution in the primary cell and the secondary cell, resource conditions of the primary cell and the secondary cell, and channel conditions and service quality conditions of the terminal in the primary cell and the secondary cell are comprehensively considered, thereby improving rationality of the terminal traffic distribution scheme in the primary cell, enhancing transmission efficiency of downlink traffic of the terminal, and ensuring that the total traffic of the primary cell and the secondary cell is improved.
Example two:
the present embodiment will continue to describe the foregoing traffic distribution management method with reference to an example, please refer to a flowchart shown in fig. 4:
s402: and periodically acquiring the utilization rate of the PRB of the main cell and the downlink MCS, the downlink BLER and the utilization rate of the PRB of each terminal in the main cell.
In this embodiment, the base station periodically selects a part of the terminals to adjust the traffic allocation ratio, so that the primary cell periodically collects information about each terminal thereunder, where the collected information includes the downlink MCS, downlink BLER, and the terminal PRB utilization of the terminal. On the other hand, the main cell also periodically acquires the utilization rate of the PRB resources of the cell.
S404: and periodically receiving the cell PRB utilization rate of the auxiliary cell sent by the auxiliary cell and the downlink MCS, downlink BLER and terminal PRB utilization rate of each terminal in the auxiliary cell through a network management system.
It can be understood that, in order to enable the base station on the primary cell side to comprehensively determine the traffic allocation proportion of the terminal based on the downlink resource condition of the primary and secondary cells, the service quality condition and the channel condition of the terminal in the two cells, the secondary cell also periodically collects information of each terminal therebelow, where the collected information includes the downlink MCS, the downlink BLER and the terminal PRB utilization rate of the terminal. On the other hand, the auxiliary cell can also periodically acquire the utilization rate of the PRB resources of the cell.
After the information is collected, the secondary cell does not need to determine the shunting factor of the secondary cell to the terminal, but the information is transmitted to the base station at the side of the primary cell, and the base station calculates the shunting factor of the secondary cell to the terminal. In some examples of this embodiment, the secondary cell may send the information collected by itself to the base station on the primary cell side through the network management system.
It is needless to say that, in this embodiment, although the base station acquires the information of the primary cell and the information of the terminal in the primary cell first, and then acquires the information of the secondary cell and the information of the terminal in the secondary cell through the network management system, the timing sequence of the two processes is not limited to this, and in other examples, the two processes may be performed simultaneously, or the subsequent process may be performed first, and then the previous process is performed.
S406: and judging whether the actual total downlink flow of the main cell and the actual total downlink flow of the auxiliary cell reach the corresponding expected total downlink flow.
If yes, the process is ended, otherwise, S408 is executed.
For the actual total downlink traffic, the actual total downlink traffic can be directly acquired by the primary cell and the secondary cell in the information acquisition process. In this embodiment, the expected total downlink traffic of a cell may be determined by:
the base station determines the downlink MCS of all the terminals in the cell, and counts the number of terminals used by various downlink MCSs, for example, for the MCS of type A, there are k1 terminals used, for the MCS of type B, there are k2 terminals used, for the MCS of type C, there are k3 terminals used … …, and then the base station selects the MCS with the number of the first m from the MCS, determines the spectrum efficiency corresponding to the MCS, and then calculates the average value of the spectrum efficiency of the cell. Then, the base station determines a corresponding expected total downlink traffic according to the average spectral efficiency of the cell, the corresponding downlink bandwidth, and the expected factor, for example, for the primary cell, the expected total downlink traffic is:
Texp＝SEaverage masterBandwidth of downlinkMaster and slave*f4
Wherein, TexpIs the desired total downlink traffic, SE, of the primary cellaverage masterIs the average value of the frequency spectrum efficiency and the downlink bandwidth of the main cellMaster and slaveDownlink bandwidth of primary cell, f4The expected factor corresponding to the primary cell.
For the secondary cell, the expected total downlink traffic is:
Texp＝SEaverage assistantBandwidth of downlinkAuxiliary device*f5
Wherein, TexpDesired total downlink traffic, SE, for secondary cellsaverage assistantAs the mean value of the frequency spectrum efficiency of the auxiliary cell, the downlink bandwidthAuxiliary deviceDownlink bandwidth, f, for secondary cell5And the expected factor is corresponding to the secondary cell.
S408: and selecting the terminal which is not marked as the adjusted terminal from the terminals as a target candidate terminal.
In some examples of this embodiment, when the base station selects the target terminal, the terminal that has been marked as the adjusted terminal is first removed, and only the remaining terminals are taken as candidate target terminals. It will be appreciated that in this case, a terminal that has currently been marked as an adjusted terminal may not be selected as the target terminal.
S410: it is determined whether the number of target candidate terminals is 0.
If yes, S412 is executed, otherwise, it indicates that all the terminals are currently marked as adjusted terminals, and therefore S414 needs to be executed.
S412: the adjusted labels of all terminals are removed.
Since all terminals have been adjusted during the previous one or more adjustments of the traffic allocation ratio, the adjustment round can be completely restarted, i.e. the base station can remove the adjusted flags of the terminals.
After removing the adjusted labels of the terminals, the base station may continue to perform S408, at which point all terminals are selected as candidate target terminals.
S414: and selecting a target terminal from the candidate target terminals according to the terminal PRB utilization rate of each terminal in the main cell and the auxiliary cell.
After the candidate target terminals are selected, the base station may select the target terminal adjusted in this round from the candidate target terminals based on the terminal PRB utilization rate of each terminal, and it can be understood that, in some cases, the terminal PRB utilization rate of the same terminal in the primary cell is not equal to the terminal PRB utilization rate in the secondary cell, and naturally, the terminal PRB utilization rate ranking sequence number of the same terminal in the primary cell is also different from the terminal PRB utilization rate ranking sequence number of the same terminal in the secondary cell. Therefore, in some examples of this embodiment, when selecting a target terminal from candidate target terminals, an average PRB utilization rate of each candidate target terminal, that is, an average of the PRB utilization rate of a terminal in the primary cell and the PRB utilization rate of a terminal in the secondary cell, may be determined. And then sorting the average PRB utilization rate of each candidate target terminal from high to low, and selecting the candidate target terminals with the preset number n arranged in the front as final target terminals.
It is understood that, in some other examples of this embodiment, after sorting the average PRB utilization of each candidate target terminal from high to low, the candidate target terminals that are ranked in the top q% may be selected as the final target terminal.
In addition, in this embodiment, when selecting a target terminal from candidate target terminals, the target terminal is selected in combination with the terminal PRB utilization rate of the candidate target terminal in the primary cell and the terminal PRB utilization rate of the candidate target terminal in the secondary cell.
S416: and judging whether the current loads of the main cell and the auxiliary cell are not out of limit.
If the determination result is no, the process proceeds to S418, otherwise, the process proceeds to S420.
In some examples of this embodiment, whether the primary cell or the secondary cell is, the corresponding load threshold is set to be the cell PRB utilization rate of 80%, and if the cell PRB utilization rate of any one of the primary cell and the secondary cell reaches 80%, the determination result is no.
S418: and determining the flow distribution proportion of the primary cell and the secondary cell according to the PRB utilization rate of the primary cell and the secondary cell.
If the PRB utilization rate of any one of the main cell and the auxiliary cell reaches the load threshold, the base station can reduce the PRB utilization rate of each cell to be below the load threshold under the condition of ensuring that the total PRB utilization rate of the two cells is not changed, and then the ratio of the PRB utilization rates of the cells after the adjustment of the main cell and the auxiliary cell is used as the flow distribution proportion. That is, the flow distribution proportion is equal to the cell PRB utilization ratio of the adjusted primary cell: the cell PRB utilization of the secondary cell.
S420: determining the shunting factor a of the main cell to the target terminalMaster and slaveAnd the distribution factor a of the secondary cell to the target terminalAuxiliary deviceAccording to aMaster and slaveAnd aAuxiliary deviceAnd determining the flow distribution proportion of the primary cell and the secondary cell.
In this embodiment, the splitting factor a of the primary cell to the target terminalMaster and slave：
Figure BDA0002165352440000121
Shunting factor a of secondary cell to target terminalAuxiliary device：
Figure BDA0002165352440000122
Wherein SEMaster and slaveThe spectrum efficiency corresponding to the MCS of the target terminal in the main cell is obtained; BLERMaster and slaveA downlink BLER of a target terminal in a main cell; cell PRB utilizationMaster and slavePRB utilization for the primary cell; SEAuxiliary deviceThe spectrum efficiency corresponding to the MCS of the target terminal in the auxiliary cell is obtained; BLERAuxiliary deviceA downlink BLER of a target terminal in an auxiliary cell; cell PRB utilizationAuxiliary deviceIs the PRB utilization of the secondary cell.
According to the above formula, for a cell, the spectrum efficiency of the MCS used by the target terminal in the cell is in a positive correlation with the splitting factor of the cell to the target terminal: the higher the spectrum efficiency of the MCS used by the target terminal in the cell is, the larger the value of the splitting factor of the cell to the target terminal is, and otherwise, the smaller the value is.
The downlink BLER of the target terminal in the cell and the PRB utilization rate of the cell are in negative correlation with the shunting factor of the cell to the target terminal: the larger the downlink BLER of a target terminal in a cell is, the smaller the value of the shunting factor of the cell to the target terminal is, and otherwise, the larger the value is; the larger the utilization rate of the PRB of a cell is, the smaller the value of the distribution factor of the cell to the target terminal is.
S422: and adjusting the downlink flow distribution of the target terminal in the main cell and the auxiliary cell according to the flow distribution proportion.
After the traffic distribution proportion of each target terminal is determined, the primary cell may adjust downlink traffic distribution of the target terminal in the primary cell and the secondary cell according to the corresponding traffic distribution.
S424: and marking the target terminal as the adjusted terminal.
After adjusting the traffic distribution of the target terminals in the primary cell and the secondary cell, the base station on the primary cell side may mark the target terminals as adjusted terminals, and wait for the next period to arrive before re-executing the flow of fig. 4.
Example three:
in order to make the advantages and details of the foregoing traffic distribution management method more clear to those skilled in the art, the present embodiment will be described with reference to specific examples:
example 1:
assuming that the current primary cell and the current secondary cell both work normally, 256QAM coding is not enabled, one UE1 accesses the primary cell and the secondary cell in a dual-connection manner, and the UE1 is currently performing downlink packet-filling service. And, the load threshold is set to 80% of the PRB utilization by both the primary cell and the secondary cell.
The collected information of the UE1 in the primary cell and the secondary cell is shown in table 1:
TABLE 1
Figure BDA0002165352440000131
The cell PRB utilization rates of the main cell and the auxiliary cell are respectively as follows: 20% and 100%.
After the primary cell and the secondary cell respectively process the information of the UE1, the information to the UE1 and the cell is as shown in table 2:
TABLE 2
Cell classes Diversion factor Cell PRB utilization Adjustment priority of UE1
Primary cell 0.27 20％ 1
Secondary cell 0.27 100％ 1
The above-mentioned adjustment of the priority is ranking of the terminal PRB usage of the UE1 in order of the terminal PRB usage from high to low. If the adjustment priority of the UE1 is 1, it means that the probability that the UE1 is selected is substantially 100% when selecting the target terminal.
Because the load thresholds of the primary cell and the secondary cell are 80%, and the PRB utilization rate of the secondary cell in table 2 is already 100%, and exceeds the 80% compliance threshold, the primary cell side does not determine the traffic distribution ratio according to the splitting factor, but directly uses the ratio of the PRB utilization rates of the primary cell and the secondary cell as the traffic distribution ratio, for example, the total value of the PRB utilization rates of the primary cell and the secondary cell is 120%, and in order to reduce the PRB utilization rate of the secondary cell to meet the requirement of the load threshold, therefore, the PRB utilization rate of the secondary cell can be set to 80%, and meanwhile, in order to ensure that the total value of the PRB utilization rates of the primary cell and the secondary cell is not changed, naturally, the PRB utilization rate of the primary cell is set to 40%.
So, in this case, the split ratio of the primary and secondary cells to the UE1 is 4: 8.
Example 2:
assuming that the current primary cell and the current secondary cell both work normally, 256QAM coding is not enabled, and two UEs (UE1 and UE2) access the primary cell and the secondary cell in a dual-connection manner, and the two UEs are currently performing downlink flooding service.
The collected information of the UE1 and the UE2 in the primary cell and the secondary cell is shown in table 3:
TABLE 3
Figure BDA0002165352440000141
The cell PRB utilization rates of the main cell and the auxiliary cell are respectively as follows: 100% and 100%.
After the primary cell and the secondary cell respectively process the information of the UE1, the information to the UE1 and the cell is as shown in table 4:
TABLE 4
Figure BDA0002165352440000142
Therefore, for UE1, the split ratio of primary cell to secondary cell is 0.27:0.27, i.e., 1: 1; for UE2, the split ratio of primary cell to secondary cell is 0.27:0.03, i.e., 9: 1.
Example 3:
assuming that the current primary cell and the current secondary cell both work normally, 256QAM coding is not enabled, and two UEs (UE1 and UE2) access the primary cell and the secondary cell in a dual-connection manner, and the two UEs are currently performing downlink flooding service.
The collected information of the UE1 and the UE2 in the primary cell and the secondary cell is shown in table 5:
TABLE 5
Figure BDA0002165352440000151
The cell PRB utilization rates of the main cell and the auxiliary cell are respectively as follows: 100% and 100%.
After the primary cell and the secondary cell respectively process the information of the UE1, the information to the UE1 and the cell is as shown in table 6:
TABLE 6
Figure BDA0002165352440000152
Therefore, for UE1, the split ratio of primary cell to secondary cell is 0.04:0.27, i.e. 4: 27; for UE2, the split ratio of primary cell to secondary cell is 0.27:0.03, i.e., 9: 1.
Example four:
the present embodiment provides a traffic distribution management apparatus capable of implementing the aforementioned traffic distribution management method, please refer to fig. 5:
the traffic distribution management device 50 includes a proportion determining module 502 and a traffic distribution module 504, where the proportion determining module 502 is configured to determine a distribution factor of a primary cell to a target terminal and a distribution factor of a secondary cell to the target terminal, and the distribution factors are determined according to cell downlink resource information of the cell and downlink channel condition information and downlink service quality information of the target terminal in the cell; the traffic distribution module 504 is configured to distribute downlink traffic of the target terminal in the primary cell and the secondary cell according to a traffic distribution ratio formed by the splitting factors of the primary cell and the secondary cell.
In some examples of this embodiment, the ratio determining module 502 may obtain the splitting factors of the primary cell and the secondary cell respectively, and for one target terminal, the splitting factor of the primary cell may be denoted as aMaster and slaveThe splitting factor of the secondary cell can be recorded as aAuxiliary device，aMaster and slave：aAuxiliary deviceThat is, the flow distribution proportion formed by the primary cell flow factor and the secondary cell flow factor represents the total downlink flow of the target terminal, and the primary cell will be divided into aMaster and slave/(aMaster and slave+aAuxiliary device) And the secondary cell will be divided into aAuxiliary device/(aMaster and slave+aAuxiliary device)。
In this embodiment, the splitting factor of one cell to one terminal may be determined according to the cell downlink resource information of the cell, the downlink channel condition information of the terminal in the cell, and the downlink service quality information, for example, the splitting factor a of the main cell to one terminalMaster and slaveThe downlink resource information of the main cell and the downlink channel condition information and the downlink service quality information of the terminal in the main cell can be determined. And the shunting factor a of the secondary cell to one terminalAuxiliary deviceAccording to the cell downlink resource information of the auxiliary cell and the downlink channel condition information and the downlink service quality of the terminal in the auxiliary cellAnd (5) information determination.
When determining the distribution factor of the main cell to the target terminal, the proportion determining module 502 may obtain cell downlink resource information of the main cell itself, which is acquired by the main cell, and downlink channel condition information and downlink service instruction information of the target terminal in the main cell, which are acquired by the main cell, and then determine the distribution factor of the main cell to the target terminal according to the information.
When determining the distribution factor of the secondary cell to the target terminal, the proportion determining module 502 may also obtain cell downlink resource information of the secondary cell itself, which is acquired by the secondary cell, and downlink channel condition information and downlink service instruction information of the target terminal in the secondary cell, which are acquired by the secondary cell, and then determine the distribution factor of the secondary cell to the target terminal according to the information. However, in some other examples of this embodiment, after the secondary cell acquires the relevant information, the splitting factor of the secondary cell to the target terminal may be directly calculated, and then the splitting factor is sent to the proportion determining module 502, so that the proportion determining module 502 obtains the splitting factor of the secondary cell to the target terminal.
In the relevant protocol, although the primary cell and the secondary cell may communicate directly, the direct communication depends on the communication interfaces specified by the existing protocol, and it is not determined in the relevant protocol that these communication interfaces can transmit the splitting factor of the secondary cell to a terminal or transmit information for determining the splitting factor of the secondary cell to the terminal, so in some examples of this embodiment, the cell downlink resource information sent by the secondary cell to the proportion determining module 502, and the downlink channel condition information and the downlink service instruction information of the target terminal in the secondary cell acquired by the secondary cell may be sent to the primary cell side through the network management system, and similarly, the splitting factor of the secondary cell to the target terminal calculated by the secondary cell itself may also be sent to the primary cell through the network management system. Referring to a schematic diagram of the communication system shown in fig. 2, a main cell and an auxiliary cell belong to different base stations, a traffic distribution management device 50 is deployed on the main base station 21, the main base station 21 and the auxiliary base station 22 can communicate through a network management system 23, if the auxiliary cell under the auxiliary base station 22 determines a distribution factor of the auxiliary cell to a target terminal after information acquisition, the auxiliary cell can transmit the calculated distribution factor of the auxiliary cell to the main base station 21 through the network management system 23, so that a proportion determining module 502 on the side of the main base station 21 obtains the distribution factor of the auxiliary cell. If the secondary cell under the secondary base station 22 only performs information acquisition, and the primary cell determines the splitting factor of the primary cell and the splitting factor of the secondary cell according to the acquired information, the secondary base station 22 may send the cell downlink resource information of the secondary cell acquired by the secondary cell, and the downlink channel condition information and the downlink service quality information of the target terminal in the secondary cell to the primary base station 21 through the network management system 23, so that the ratio determining module 502 obtains the relevant information.
In some examples of this embodiment, the cell downlink resource information includes, but is not limited to, PRB utilization of the cell. In addition, the method may further include any one of CPU utilization, memory utilization, and the like on the base station side.
The downlink channel condition information may include at least one of MCS, SNR, SINR, RSRP, RSRQ, CQI, and the like 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 a cell PRB utilization, the downlink channel condition information includes a downlink MCS of the target terminal in the corresponding cell, and the downlink service quality information includes a downlink BLER of the target terminal in the corresponding cell; shunting factor a of main cell to target terminalMaster and slave：
Figure BDA0002165352440000171
Shunting factor a of secondary cell to target terminalAuxiliary device：
Figure BDA0002165352440000181
Wherein SEMaster and slaveThe spectrum efficiency corresponding to the MCS of the target terminal in the main cell is obtained; BLERMaster and slaveA downlink BLER of a target terminal in a main cell; cell PRB utilizationMaster and slavePRB utilization for the primary cell; SEAuxiliary deviceThe spectrum efficiency corresponding to the MCS of the target terminal in the auxiliary cell is obtained; BLERAuxiliary deviceA downlink BLER of a target terminal in an auxiliary cell; cell PRB utilizationAuxiliary devicePRB utilization rate of the secondary cell;
f1, f2 and f3 are calculation factors, and values can be set by network management personnel according to empirical values. In some examples of the present embodiment, the values of f1, f2, and f3 are fixed, but in other examples of the present embodiment, network management personnel may adjust the values of f1, f2, and f3 according to actual situations, that is, in different calculation processes, f1, f2, and f3 may be different.
It can be understood that, after the proportion determining module 502 determines the splitting factor of the primary cell to the target terminal and the splitting factor of the secondary cell to the target terminal, the traffic distribution proportion of the target terminal in the primary cell and the secondary cell is determined. In some examples, prior to determining the splitting factor of the primary cell for the target terminal and the splitting factor of the secondary cell for the target terminal in the foregoing manner, the proportion determining module 502 may first determine whether at least one current load in the primary cell and the secondary cell is over-limit, if the determination result is negative, that is, the current loads of the primary cell and the secondary cell are both over-limit, the proportion determining module 502 may determine the splitting factor of the primary cell and the splitting factor of the secondary cell according to the foregoing manner, but if the determination result is positive, it indicates that at least one of the primary cell and the secondary cell is currently overloaded, and therefore, the proportion determining module 502 may determine the traffic allocation proportion of the target terminal between the primary cell and the secondary cell in other manners, for example, in one example, the primary cell and the secondary cell pair are determined according to cell downlink resource information of the primary cell and downlink resource information of the secondary cell.And the flow distribution proportion of the target terminal. For example, if the cell downlink resource information is the cell PRB, the traffic allocation ratio of the target terminal in the primary cell and the secondary cell may be the cell PRB utilization ratioMaster and slave: cell PRB utilizationAuxiliary device。
After the proportion determining module 502 determines the flow distribution proportion of the target terminal in the primary cell and the secondary cell, the flow distribution module 504 may control the downlink flow distribution of the target terminal according to the flow distribution proportion, so that the flow distribution of the target terminal in the primary cell and the secondary cell conforms to the resource condition of the primary cell and the secondary cell, and the service quality and channel condition of the target terminal in the primary cell are also considered, thereby the downlink flow of the target terminal can be effectively transmitted, the transmission efficiency of the downlink flow of the target terminal is improved, and the user experience at the target terminal side is enhanced. Meanwhile, the total flow borne by the main cell and the auxiliary cell is improved, and the throughput of the communication system is improved.
It can be understood that, if the original transmitted traffic of the primary cell and the secondary cell is definitely very large and has reached the desired level, the primary cell may not adjust the traffic of the target terminal in the primary cell and the traffic in the secondary cell according to the newly determined traffic distribution ratio. That is, the original traffic distribution policy is already excellent, and only the current traffic distribution policy needs to be maintained without adjusting according to the newly determined traffic distribution policy. Therefore, in some examples of this embodiment, if the actual total downlink traffic of the primary cell and the secondary cell has already reached the corresponding desired total downlink traffic, that is, the actual total downlink traffic of the primary cell reaches the desired total downlink traffic corresponding to the primary cell, and the actual total downlink traffic of the secondary cell reaches the desired total downlink traffic corresponding to the secondary cell, it is not necessary to adjust the traffic distribution of the target terminal in the primary cell and the secondary cell according to the newly determined traffic distribution policy. However, if the actual total downlink traffic of at least one of the primary cell and the secondary cell does not reach the corresponding desired total downlink traffic, the primary cell may allocate the downlink traffic of the target terminal in the primary cell and the secondary cell according to the traffic allocation proportion determined according to the splitting factor.
It can be understood that the primary cell and the secondary cell in the dual connectivity scenario do not serve a certain terminal, and in a normal case, the primary cell and the secondary cell may connect multiple terminals at the same time. However, considering that the number of terminals in a cell is large, if the primary cell adjusts the traffic distribution of each terminal in the cell in the foregoing manner, the load of the primary cell is relatively high, and the effect after one adjustment cannot be completely determined before the adjustment, so that the problem of poor adjustment effect may also occur after the adjustment, in some examples of this embodiment, referring to fig. 6, the traffic distribution management apparatus 50 further includes a terminal selection module 500 in addition to the proportion determination module 502 and the traffic distribution module 504, and before determining the splitting factor of the primary cell to the target terminal and the splitting factor of the secondary cell to the target terminal, the terminal selection module 500 determines the target terminal:
first, the terminal selection module 500 obtains 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 a PRB utilization rate of the terminal, and of course, a person skilled in the art may understand that the terminal downlink resource information may also be other information of the terminal, such as a CPU utilization rate or a memory utilization rate of the terminal.
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 terminal downlink resource information is the PRB utilization of the terminal, the terminal selection module 500 may preferentially select a terminal with a higher terminal PRB utilization as the target terminal: in an example of this embodiment, the terminal selection module 500 may select 10 terminals as the target terminals according to a selection order from high to low of the terminal PRB utilization. In this example, the terminal selection module 500 determines the target terminal according to a preset number, but in another example of the embodiment, the terminal selection module 500 may select the first 10% terminals as the target terminals according to a selection order of the terminal PRB utilization from high to low.
It can be understood that, because the process of adjusting the terminal traffic distribution policy by the primary cell is not performed only once, but may be performed in a cyclic manner, after the traffic distribution policies of some terminals are adjusted according to the corresponding traffic distribution proportions, the terminals may be marked as "adjusted terminals," and in the next adjustment process, when selecting a target terminal, the terminal selection module 500 may select a terminal that is not marked as an adjusted terminal as the target terminal, so that the problem that the traffic distribution of some terminals is always adjusted, and some other terminals always do not get a traffic distribution adjustment opportunity can be avoided. If the terminal selection module 500 finds that all terminals have been marked as adjusted terminals when determining the target terminal, the terminal selection module 500 may remove the adjusted marks of the terminals, re-select the target terminal from all the terminals, and re-mark the adjusted terminal.
The traffic distribution management apparatus 50 provided in this embodiment may be deployed on the main base station side, and the functions of the proportion determining module and the traffic distribution module may be implemented together by the processor and the communication unit on the main base station side.
The traffic distribution management apparatus provided in this embodiment may determine, based on cell downlink resource information of a cell, downlink channel condition information of a terminal in the cell, and downlink service quality information, a splitting factor of the cell to the terminal, further determine a traffic distribution ratio of a primary cell and a secondary cell based on the splitting factor of each cell to the terminal, and then adjust downlink traffic of the terminal in the primary cell and the secondary cell according to the traffic distribution ratio, so that when the primary cell and the secondary cell perform traffic distribution, resource conditions of the primary cell and the secondary cell are comprehensively considered, and channel conditions and service quality conditions of the terminal in the primary cell and the secondary cell are considered, thereby improving rationality of the terminal traffic distribution scheme in the primary cell, enhancing transmission efficiency of downlink traffic of the terminal, and ensuring that the total traffic of the primary cell and the secondary cell is improved.
Example five:
the present embodiment provides a storage medium, in which one or more computer programs that can be read, compiled and executed by one or more processors are stored, and in the present embodiment, the storage medium may store a traffic distribution management program, and the traffic distribution management program can be used by one or more processors to execute a process for implementing any one of the traffic distribution management methods described in the foregoing embodiments.
In addition, the present 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, wherein the memory 72 may be the aforementioned storage medium storing the traffic allocation management program. The processor 71 may read the flow distribution management program, compile and execute the flow implementing the flow distribution management method described in the foregoing embodiment:
the processor 71 firstly determines a distribution factor of the primary cell to the target terminal and a distribution factor of the secondary cell to the target terminal, wherein the distribution factors are determined according to cell downlink resource information of the cell, downlink channel condition information of the target terminal in the cell and downlink service quality information; then, the processor 71 allocates the downlink traffic of the target terminal in the primary cell and the secondary cell according to the traffic allocation ratio formed by the splitting factors of the primary cell and the secondary cell.
In some examples of this embodiment, when determining the splitting factor of the primary cell to the target terminal and the splitting factor of the secondary cell to the target terminal, the processor 71 may first obtain 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; then, determining a distribution factor of the main cell to the target terminal according to the cell downlink resource information of the main cell, the downlink channel condition information of the target terminal in the main cell and the downlink service quality information; and determining the distribution factor of the auxiliary cell to the target terminal according to the cell downlink resource information of the auxiliary cell, the downlink channel condition information of the target terminal in the auxiliary cell and the downlink service quality information.
Optionally, when acquiring the cell downlink resource information of the primary cell and the secondary cell, the processor 71 may acquire the cell downlink resource information of the primary cell, and downlink channel condition information and downlink service quality information of each terminal in the primary cell; and receiving cell downlink resource information of the secondary cell acquired by the secondary cell, and downlink channel condition information and downlink service quality information of each terminal in the secondary cell.
It can be understood that the receiving of the cell downlink resource information of the secondary cell acquired by the secondary cell, the downlink channel condition information and the downlink service quality information of each terminal in the secondary cell includes:
the processor 71 receives the cell downlink resource information of the secondary cell, the downlink channel condition information and the downlink service quality information of each terminal in the secondary cell, which are sent by the secondary cell through the network management system.
In some examples of this embodiment, when determining the splitting factor of the primary cell to the target terminal, the processor 71 may obtain cell downlink resource information of the primary cell, and downlink channel condition information and downlink service quality information of each terminal in the primary cell; then, determining a distribution factor of the main cell to the target terminal according to the cell downlink resource information of the main cell, the downlink channel condition information of the target terminal in the main cell and the downlink service quality information;
when determining the splitting factor of the target terminal in the secondary cell, the processor 71 may directly receive the splitting factor of the target terminal from the secondary cell sent by the secondary cell.
Optionally, before the processor 71 determines the splitting factor of the primary cell to the target terminal and the splitting factor of the secondary cell to the target terminal, terminal downlink resource information of each terminal in the primary cell and the secondary cell may also be obtained first; and determining a target terminal from each terminal according to the terminal downlink resource information of each terminal in the main cell and the auxiliary cell.
Optionally, the terminal downlink resource information includes a terminal PRB utilization rate, and when the processor 71 determines that a target terminal is determined from the terminals according to the terminal downlink resource information, the terminals with a preset number or a preset proportion may be selected as the target terminal according to a selection sequence from high to low of the terminal PRB utilization rate.
In some examples of this embodiment, the processor 71 selects a preset number or a preset proportion of terminals as target terminals from terminals that have not been marked as adjusted terminals in the selection order of the terminal PRB utilization from high to low.
Optionally, the processor 71 may further determine that the actual total downlink traffic of at least one of the primary cell and the secondary cell does not reach the corresponding desired total downlink traffic before allocating the downlink traffic of the target terminal in the primary cell and the secondary cell according to the traffic allocation ratio formed by the splitting factors of the primary cell and the secondary cell.
In some examples of this embodiment, before the processor 71 determines the splitting factor of the primary cell to the target terminal and the splitting factor of the secondary cell to the target terminal, it may also be determined that cell loads of both the primary cell and the secondary cell have not exceeded limits.
And if at least one of the load of the main cell and the load of the auxiliary cell are determined to be over-limit, determining the flow distribution proportion of the main cell and the auxiliary cell to the target terminal according to the cell downlink resource information of the main cell and the downlink resource information of the auxiliary cell.
In some examples of this embodiment, the cell downlink resource information includes a cell PRB utilization, the downlink channel condition information includes an MCS of the target terminal in the corresponding cell, and the downlink service quality information includes a downlink BLER of the target terminal in the corresponding cell; shunting factor a of main cell to target terminalMaster and slave：
Figure BDA0002165352440000231
Shunting factor a of secondary cell to target terminalAuxiliary device：
Figure BDA0002165352440000232
Wherein SEMaster and slaveThe spectrum efficiency corresponding to the MCS of the target terminal in the main cell is obtained; BLERMaster and slaveA downlink BLER of a target terminal in a main cell; cell PRB utilizationMaster and slavePRB utilization for the primary cell; SEAuxiliary deviceThe spectrum efficiency corresponding to the MCS of the target terminal in the auxiliary cell is obtained; BLERAuxiliary deviceA downlink BLER of a target terminal in an auxiliary cell; cell PRB utilizationAuxiliary devicePRB utilization rate of the secondary cell;
f1, f2 and f3 are calculation factors.
The flow distribution proportion determined by combining the factors can distribute the downlink flow of the target terminal to the main cell and the auxiliary cell more reasonably, so that the main cell and the auxiliary cell can more effectively realize the transmission of the downlink flow of the target terminal, and the flow throughput of the base station is improved.
It is to be understood that the technical means in the embodiments of the present invention can be used in combination without conflict.
It will be apparent to those skilled in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software (which may be implemented in program code executable by a computing device), firmware, hardware, and suitable combinations thereof. In a hardware implementation, 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 be performed by several physical components in cooperation. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed over computer-readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media), executed by a computing device, and in some cases may perform the steps shown or described in a different order than here. The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art. Thus, the present invention is not limited to any specific combination of hardware and software.
The foregoing is a more detailed description of embodiments of the present invention, and the present invention is not to be considered limited to such descriptions. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.

Claims (15)

1. A traffic distribution management method, comprising:
determining a distribution factor of a main cell to a target terminal and a distribution factor of an auxiliary cell to the target terminal, wherein the distribution factors are determined according to cell downlink resource information of the cell, downlink channel condition information of the target terminal in the cell and downlink service quality information;
and distributing the downlink flow of the target terminal in the main cell and the auxiliary cell according to a flow distribution proportion formed by the flow distribution factors of the main cell and the auxiliary cell.
2. The traffic distribution management method according to claim 1, wherein the determining the splitting factor of the primary cell to the target terminal and the splitting factor of the secondary cell to the target terminal includes:
acquiring cell downlink resource information of the main cell and the auxiliary cell, and downlink channel condition information and downlink service quality information of each terminal in the main cell and the auxiliary cell;
determining a distribution factor of the main cell to the target terminal according to the cell downlink resource information of the main cell, the downlink channel condition information of the target terminal in the main cell and the downlink service quality information; and determining the distribution factor of the auxiliary cell to the target terminal according to the cell downlink resource information of the auxiliary cell, the downlink channel condition information of the target terminal in the auxiliary cell and the downlink service quality information.
3. The traffic distribution management method according to claim 2, wherein the obtaining cell downlink resource information of the primary cell and the secondary cell comprises:
acquiring cell downlink resource information of the main cell and downlink channel condition information and downlink service quality information of each terminal in the main cell; and receiving the cell downlink resource information of the auxiliary cell acquired by the auxiliary cell and downlink channel condition information and downlink service quality information of each terminal in the auxiliary cell.
4. The traffic distribution management method according to claim 3, wherein the receiving the cell downlink resource information of the secondary cell acquired by the secondary cell and the downlink channel condition information and the downlink service quality information of each terminal in the secondary cell comprises:
and receiving the cell downlink resource information of the auxiliary cell, the downlink channel condition information and the downlink service quality information of each terminal in the auxiliary cell, which are sent by the auxiliary cell through a network management system.
5. The traffic distribution management method according to claim 1, wherein the determining the splitting factor of the primary cell to the target terminal comprises:
acquiring cell downlink resource information of the main cell, and downlink channel condition information and downlink service quality information of each terminal in the main cell;
determining a distribution factor of the main cell to the target terminal according to the cell downlink resource information of the main cell, the downlink channel condition information of the target terminal in the main cell and the downlink service quality information;
the determining of the splitting factor of the target terminal in the secondary cell includes:
and receiving the distribution factor of the target terminal sent by the secondary cell.
6. The traffic distribution management method according to any one of claims 1 to 5, wherein before determining the splitting factor of the primary cell to the target terminal and the splitting factor of the secondary cell to the target terminal, the method further comprises:
acquiring terminal downlink resource information of each terminal in the main cell and the auxiliary cell;
and determining a target terminal from each terminal according to the terminal downlink resource information of each terminal in the main cell and the auxiliary cell.
7. The traffic allocation management method according to claim 6, wherein the terminal downlink resource information includes a terminal physical resource block PRB utilization, and the determining, according to the terminal downlink resource information, a target terminal in each of the terminals includes:
and selecting terminals with preset number or preset proportion as target terminals according to the selection sequence of the PRB utilization rate of the terminals from high to low.
8. The traffic allocation management method according to claim 7, wherein the selecting a preset number or a preset proportion of terminals as target terminals according to a selection order of terminal PRB utilization from high to low comprises:
and selecting terminals with preset number or preset proportion from the terminals which are not marked as the adjusted terminals as target terminals according to the selection sequence of the PRB utilization rate of the terminals from high to low.
9. The traffic distribution management method according to any one of claims 1 to 5, wherein the allocating the target terminal according to the traffic distribution ratio formed by the splitting factors of the primary cell and the secondary cell before the downlink traffic of the primary cell and the secondary cell further includes:
and determining 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. The traffic distribution management method according to any one of claims 1 to 5, wherein before determining the splitting factor of the primary cell to the target terminal and the splitting factor of the secondary cell to the target terminal, the method further comprises:
determining that the cell loads of the primary cell and the secondary cell have not exceeded limits.
11. The traffic distribution management method according to claim 10, characterized in that the traffic distribution management method further comprises:
and if at least one of the main cell and the auxiliary cell is determined to be overloaded, determining the flow distribution proportion of the main cell and the auxiliary cell to the target terminal according to the cell downlink resource information of the main cell and the downlink resource information of the auxiliary cell.
12. Traffic distribution manager according to any of claims 1-5The method is characterized in that the cell downlink resource information comprises the cell PRB utilization rate, the downlink channel condition information comprises the modulation coding mode MCS of the target terminal in the corresponding cell, and the downlink service quality information comprises the downlink block error rate BLER of the target terminal in the corresponding cell; the shunting factor a of the main cell to the target terminalMaster and slave：
Figure FDA0002165352430000031
The flow distribution factor a of the auxiliary cell to the target terminalAuxiliary device：
Figure FDA0002165352430000032
Wherein SEMaster and slaveThe spectrum efficiency corresponding to the MCS of the target terminal in the main cell is obtained; BLERMaster and slaveA downlink BLER of the target terminal in the main cell; cell PRB utilizationMaster and slaveA PRB utilization for the primary cell; SEAuxiliary deviceThe spectrum efficiency corresponding to the MCS of the target terminal in the secondary cell is obtained; BLERAuxiliary deviceA downlink BLER of the target terminal in the auxiliary cell; cell PRB utilizationAuxiliary deviceThe PRB utilization rate of the secondary cell is set;
the f1, f2 and f3 are calculation factors.
13. A traffic distribution management device, comprising:
the system comprises a proportion determining module, a distributing module and a distributing module, wherein the proportion determining module is used for determining a distributing factor of a main cell to a target terminal and a distributing factor of an auxiliary cell to the target terminal, and the distributing factors are determined according to cell downlink resource information of the cell, downlink channel condition information of the target terminal in the cell and downlink service quality information;
and the flow distribution module is used for distributing the downlink flow of the target terminal in the primary cell and the secondary cell according to a flow distribution proportion formed by the flow distribution factors of the primary cell and the secondary cell.
14. A base station comprising a processor, a memory, and a communication bus;
the communication bus is used for realizing connection 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 of claims 1 to 12.
15. A storage medium storing one or more programs, the one or more programs being executable by one or more processors to implement the steps of the traffic distribution management method according to any one of claims 1 to 12.
CN201910745286.9A 2019-08-13 2019-08-13 Flow distribution management method, device, base station and storage medium Pending CN112399481A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201910745286.9A CN112399481A (en) 2019-08-13 2019-08-13 Flow distribution management method, device, base station and storage medium
PCT/CN2020/103085 WO2021027498A1 (en) 2019-08-13 2020-07-20 Traffic allocation management method, apparatus, base station, and storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910745286.9A CN112399481A (en) 2019-08-13 2019-08-13 Flow distribution management method, device, base station and storage medium

Publications (1)

Publication Number Publication Date
CN112399481A true CN112399481A (en) 2021-02-23

Family

ID=74570508

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910745286.9A Pending CN112399481A (en) 2019-08-13 2019-08-13 Flow distribution management method, device, base station and storage medium

Country Status (2)

Country Link
CN (1) CN112399481A (en)
WO (1) WO2021027498A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114255585A (en) * 2021-12-07 2022-03-29 广东惠科信息技术有限公司 Target area crowd diversion method and device based on 5G base station and storage medium
WO2023072092A1 (en) * 2021-10-29 2023-05-04 中兴通讯股份有限公司 Data offloading method and apparatus, electronic device, and storage medium

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116170815A (en) * 2021-11-24 2023-05-26 中国移动通信集团设计院有限公司 Method, device and equipment for processing cell traffic

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103906105B (en) * 2012-12-28 2017-07-28 普天信息技术研究院有限公司 A kind of management method of carrier wave
JP6376790B2 (en) * 2014-03-20 2018-08-22 株式会社Ｎｔｔドコモ Base station and transmission / reception start determination method
MX367986B (en) * 2014-05-16 2019-09-13 Lg Electronics Inc Method and apparatus for performing traffic steering for carrier aggregation and dual connectivity in wireless communication system.
CN105208602B (en) * 2015-10-16 2018-12-11 中国联合网络通信集团有限公司 A kind of method and device of load balancing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023072092A1 (en) * 2021-10-29 2023-05-04 中兴通讯股份有限公司 Data offloading method and apparatus, electronic device, and storage medium
CN114255585A (en) * 2021-12-07 2022-03-29 广东惠科信息技术有限公司 Target area crowd diversion method and device based on 5G base station and storage medium
CN114255585B (en) * 2021-12-07 2023-12-22 广东惠科信息技术有限公司 Target area crowd diversion method and device based on 5G base station and storage medium

Also Published As

Publication number Publication date
WO2021027498A1 (en) 2021-02-18

Similar Documents

Publication Publication Date Title
WO2021027498A1 (en) Traffic allocation management method, apparatus, base station, and storage medium
JP5322906B2 (en) Base station apparatus and scheduling method
US10194338B2 (en) Network optimization method and apparatus, and base station
US20150312923A1 (en) Data transmission/receiving method and device
US11595136B2 (en) Communication control device, communication control method and information processing apparatus
US20120033570A1 (en) Downlink inter-cell interference coordination method and enb
US10404599B2 (en) Method for operating a radio communication network or a network element thereof using baseband unit selection
CN110121213B (en) Multi-service resource scheduling method and device
CN111836306B (en) Power coordination method and device
US9144080B2 (en) Selecting transmission parameters for downlink transmissions based on retransmission rates
US20160360538A1 (en) Small cell system and method for allocating resource thereof
US20200128577A1 (en) Resource Indication Method, User Equipment, Network Device and Computer Storage Medium
CN104902431A (en) Cross-cell D2D communication spectrum distributing method in LTE network
CN110366217B (en) Carrier switching method, device and medium based on asymmetric uplink carrier aggregation
CN109803365B (en) Power control method, device, equipment and computer readable storage medium
CN107995312B (en) Boundary network service flow distribution system and dynamic distribution method
EP2912798B1 (en) Queue splitting for parallel carrier aggregation scheduling
US9705657B2 (en) Method and apparatus for scheduling in wireless communication system for coordinated scheduling
CN108243449B (en) User terminal grouping scheduling method and device
US10432352B2 (en) Fast initialization of downlink adaptation
CN112770339B (en) Cooperative cell determination method and device
CN104244260B (en) A kind of resource allocation methods and device
KR20140075476A (en) Method and apparatus for dynamic resource allocation
CN103188815A (en) Downlink dispatching method and device
CN115278913B (en) Resource allocation method and device, electronic equipment and storage medium

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination