CN110831052A - Load balancing method and device based on periodic measurement report - Google Patents
Load balancing method and device based on periodic measurement report Download PDFInfo
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- CN110831052A CN110831052A CN201810893197.4A CN201810893197A CN110831052A CN 110831052 A CN110831052 A CN 110831052A CN 201810893197 A CN201810893197 A CN 201810893197A CN 110831052 A CN110831052 A CN 110831052A
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Abstract
The embodiment of the invention discloses a load balancing method and a device based on periodic measurement reports, wherein the method comprises the following steps: the base station receives periodic MR data reported by the terminal and records the level value of the local cell in the periodic MR data; if the load of the cell is greater than the threshold value, determining the target user needing to be balanced at this time according to the load condition of the same-coverage adjacent cell; screening target users according to a load balancing user selection strategy and periodic MR data configured by a base station, generating a candidate list of balancing users, and sequentially carrying out load balancing on the users in the candidate list; and the periodic MR data is obtained by processing the periodic MR measurement and control message and the measurement frequency point according to the period configured in the periodic MR measurement and control message. The base station records periodic measurement report data, so that a central user can be selected more effectively, the effect of load balancing is achieved, the situation that high load occurs in an adjacent cell due to balancing is reduced, the number of times that the user repeatedly performs balancing among cells in a network is reduced, and the use efficiency of the user is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a load balancing method and device based on periodic measurement reports.
Background
With the explosive growth of mobile internet applications, users' acceptance of services such as mobile phone internet access, video on demand, sending and receiving mails, downloading and the like is changed into dependence, and mobile operators must provide larger bandwidth and capacity to meet the requirements of users. With the gradual increase of 4G network users, the single carrier and the dual carrier in the hot spot region cannot meet the requirements of users on large bandwidth and high capacity. However, from the view of actual network load, users are concentrated in one or two cells in a station in many scenarios, and there are fewer users in other cells in the station covered by the same network, and meanwhile, the number of users in some base stations covered by the same network is different by 9-11 times, and a method for controlling the number of users by parameter adjustment on site is almost not feasible. There is a need to achieve intra-site and inter-site cell load balancing.
The part of the TD-LTE (Time Division Long Term evolution) system is balanced with the covered load, a base station firstly needs to select a proper adjacent cell, then selects a certain number of users to configure the measurement configuration of the frequency point of the adjacent cell A4 (the measurement event of load balancing, and the measurement configuration is reported when the adjacent cell is higher than the threshold), and when the terminal reports the MR (measurement report), the base station switches the user to the adjacent cell; when the user selects at present, the A2 (when the pilot frequency starts a measurement event, the serving cell reports when the serving cell is lower than the threshold) measurement report (when the pilot frequency measurement threshold is started, the measurement report is reported) is considered as an edge user, and the A2 measurement report which is not reported is considered as a center user. In an actual network scene, the selected user is often difficult to report an a4 measurement report of a neighboring frequency point, so that the user cannot be balanced, and the load balance among cells cannot be completed.
The equalization method in the prior art comprises the following steps: firstly, when the selection reaches high load, firstly selecting a balanced adjacent cell; secondly, configuring the user selection of measurement, reporting the user which is not reported as a central user and is measured by A2, reporting the user which is measured by A2 as an edge user, preferentially selecting the measurement of central user configuration A4, and selecting the measurement of edge user configuration A4 when the central user can not select enough users; thirdly, user sorting: 1) load balancing based on PRB (Physical Resource Block): sorting the priority levels from low to high according to QCI (QoS Class identifier, wherein QoS represents Quality of Service) established by a user, namely, the priority level is low in priority balance; sequencing the PRB utilization rate of the users from high to low with the same priority, namely preferentially balancing the users with low QCI priority and high PRB utilization rate; 2) load balancing based on the number of users: sorting the priority levels of the QCIs established by the user from low to high, namely, balancing the priority levels with low priority levels; sequencing the PRB utilization rates of the users with the same priority from low to high, namely preferentially balancing the users with low QCI priority and low PRB utilization rate; the aim is to balance more users as much as possible; fourthly, carrying out A4 measurement configuration of load balancing on the selected users; fifthly, carrying out load balancing switching on the users reporting the A4 measurement; and sixthly, completing the load balancing process.
In the above-mentioned existing method, under the same coverage scenario in part of the inter-station stations, the base station distinguishes between the central user and the edge user by reporting a2 measurement, but the external field a2 measurement configuration belongs to the optimized parameter, different configuration values in different cities are different, even if the configuration difference of different base stations in the same city is large, when the configuration values in a2 are different, the effect of load balancing is directly affected, for example: when the configuration value of A2 is-95 dB, the A2 threshold is not easy to meet, users reporting A2 measurement reports in a cell are fewer, and a central user is easy to select; the A4 configured with load balancing is easier to report after measurement, and the load balancing can be realized. When the configuration value of a2 is-80 dB, the threshold of a2 is easily met, users reporting a2 measurement report in a cell are more and are not easy to select a central user, and at this time, the users reporting a2 measurement report need to select from the users reporting a2 measurement report, and under this condition, RSRP (Reference Signal Receiving Power, i.e., level value) of the users reporting a2 measurement report is between-80 dB and-110 dB, the users are randomly selected for the base station, and a user configured with load balance a4 of about-100 dB is likely to be selected, so that the user is difficult to report an a4 measurement report normally when the user is at the edge of the cell, and the user cannot be balanced, and the load balance between cells cannot be completed, so that the use of the user is affected by a long-time high-load state of the cell.
Disclosure of Invention
Because the existing method has the above problems, the embodiments of the present invention provide a load balancing method and apparatus based on periodic measurement reports.
In a first aspect, an embodiment of the present invention provides a load balancing method based on a periodic measurement report, including:
if the base station judges that the measurement switch of the periodic measurement report MR is turned on, configuring a periodic MR measurement and control message to the terminal according to the reconfiguration message;
receiving periodic MR data reported by the terminal, and recording the level value of the local cell in the periodic MR data into the context of the terminal;
if the load of the cell is judged and known to be larger than the threshold value, determining a target neighbor cell of the balancing process according to the load condition of the same-coverage neighbor cell, and calculating to obtain a target user needing balancing according to the load condition of the target neighbor cell;
screening the target user according to a load balancing user selection strategy configured by a base station and the periodic MR data to generate a candidate list of balancing users, and sequentially carrying out load balancing on the users in the candidate list;
the periodic MR data is obtained by the terminal according to the period configured in the periodic MR measurement and control message and the measurement frequency point;
the reconfiguration message is a message sent by the base station to the terminal.
Optionally, after receiving the periodic MR data reported by the terminal and recording the level value of the cell in the periodic MR data into the context of the terminal, the method further includes:
and if the terminal reports the periodic MR data again, updating the level value of the cell in the periodic MR data reported again by the terminal to the level value in the context of the terminal.
Optionally, the load balancing user selection policy includes any combination of: whether the base station is configured with a QoS scale value QCI for prohibiting equalization, whether a corresponding scene is selected according to the set prohibited QCI value, whether the base station is configured with a CA (Carrier Aggregation) user, whether the base station is configured with a user for prohibiting equalization, whether the base station is configured with a user for filtering the auxiliary Carrier, whether the base station is configured with the user for filtering the auxiliary Carrier according to a position selection switch, and whether the number of the selected users is more than or equal to the number of the target users.
Optionally, the screening the target user according to the load balancing user selection policy configured by the base station and the periodic MR data to generate a candidate list of balanced users, and sequentially performing load balancing on the users in the candidate list, specifically including:
screening the target user according to a load balancing user selection strategy configured by a base station and the periodic MR data to generate a candidate list of balancing users, sorting the candidate list according to a QoS scale value QCI priority, a physical resource block PRB occupancy rate and a reference signal received power RSRP level value, and sequentially carrying out load balancing on the users in the sorted candidate list.
Optionally, the determining, according to the load condition of the cells in the same coverage area, a target cell in the current balancing process, and calculating, according to the load condition of the target cell, to obtain a target user needing balancing this time specifically includes:
and sequencing according to the load conditions of the same-coverage adjacent cells from low to high, selecting the previous preset number of same-coverage adjacent cells as target adjacent cells of the balancing process, and calculating according to the load conditions of the target adjacent cells to obtain the target user needing balancing.
Optionally, the method further comprises:
estimating the PRB occupancy of the user in the candidate list, if the sum of the PRB occupancy of the user in the candidate list and the current PRB occupancy of the neighbor cell is greater than or equal to the PRB load threshold of the neighbor cell, determining that the user in the candidate list can cause high downlink load of the neighbor cell after being balanced into the neighbor cell, or else determining that the user in the candidate list cannot cause high downlink load of the neighbor cell after being balanced into the neighbor cell;
and estimating the uplink PRB occupation amount of the users in the candidate list, if the sum of the uplink PRB occupation amount of the users in the candidate list and the current neighbor uplink PRB occupation amount is more than or equal to a neighbor uplink PRB load threshold, determining that the uplink high load of the neighbor can be caused after the users in the candidate list enter the neighbor in a balanced manner, and otherwise determining that the uplink high load of the neighbor cannot be caused after the users in the candidate list enter the neighbor in a balanced manner.
In a second aspect, an embodiment of the present invention further provides a load balancing apparatus based on a periodic measurement report, including:
the message configuration module is used for configuring a periodic measurement report MR measurement and control message to the terminal according to the reconfiguration message if the measurement switch of the MR is judged to be turned on;
the level value recording module is used for receiving periodic MR data reported by the terminal and recording the level value of the local cell in the periodic MR data into the context of the terminal;
the target user determining module is used for determining a target neighbor cell in the balancing process according to the load condition of the same coverage neighbor cell if the load of the cell is judged and known to be larger than the threshold value, and calculating to obtain the target user needing balancing according to the load condition of the target neighbor cell;
the load balancing module is used for screening the target user according to a load balancing user selection strategy configured by the base station and the periodic MR data, generating a candidate list of balanced users and sequentially carrying out load balancing on the users in the candidate list;
the periodic MR data is obtained by the terminal according to the period configured in the periodic MR measurement and control message and the measurement frequency point;
the reconfiguration message is a message sent by the base station to the terminal.
Optionally, the apparatus further comprises:
and the level value updating module is used for updating the level value of the cell in the periodic MR data reported again by the terminal to the level value in the context of the terminal if the periodic MR data reported again by the terminal.
Optionally, the load balancing user selection policy includes any combination of: whether the base station is configured with a QoS scale value QCI for prohibiting equalization, whether a corresponding scene is selected according to the set prohibited QCI value, whether the base station is configured with a CA user prohibiting equalization carrier aggregation, filtering users configured with auxiliary carriers, filtering the users according to a position selection switch, and whether the number of the selected users is larger than or equal to the number of the target users.
In a third aspect, an embodiment of the present invention further provides an electronic device, including:
at least one processor; and
at least one memory communicatively coupled to the processor, wherein:
the memory stores program instructions executable by the processor, which when called by the processor are capable of performing the above-described methods.
In a fourth aspect, an embodiment of the present invention further provides a non-transitory computer-readable storage medium storing a computer program, which causes the computer to execute the above method.
According to the technical scheme, the base station records the periodic measurement report data, the central user can be effectively selected, the effect of load balancing is achieved, the situation that high load occurs in the adjacent cell due to balancing is reduced, the number of times that the user repeatedly balances among the cells in the network is reduced, and the use efficiency of the user is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic flowchart of a load balancing method based on periodic measurement reports according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a user sorting process according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of storing periodic MR measurement data according to an embodiment of the present invention;
FIG. 4 is a flowchart illustrating a user selection process according to an embodiment of the present invention;
fig. 5 is a schematic flowchart illustrating a process of load balancing for periodic MR measurement data according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a load balancing apparatus based on periodic measurement reports according to an embodiment of the present invention;
fig. 7 is a logic block diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Fig. 1 shows a flowchart of a load balancing method based on periodic measurement reports according to this embodiment, where the method includes:
s101, if the base station judges that the measurement switch of the period MR is turned on, the base station configures a period MR measurement and control message for the terminal according to the reconfiguration message.
Specifically, after the user successfully accesses the network, the base station judges whether the periodic MR measurement switch is turned on, and if the periodic MR measurement switch is turned on, the periodic MR measurement and control message is configured for the terminal according to the reconfiguration message; if the periodic MR measurement switch is off, the recording of periodic MR data in S102 need not be performed.
S102, receiving periodic MR data reported by the terminal, and recording the level value of the local cell in the periodic MR data into the context of the terminal.
The periodic MR data is obtained by the terminal according to the period configured in the periodic MR measurement and control message and the measurement frequency point; and the content of the periodic MR measurement and control message is sent to the terminal in a reconfiguration message mode.
The reconfiguration message is a message sent by the base station to the terminal.
Specifically, the terminal reports the MR data according to the period and the measurement frequency point configured in the reconfiguration message; the MR reporting period unit is ms level, is generally configured within 1s and can be configured randomly; and the base station records the level value of the cell in the MR reported by the terminal into the context of the terminal and only records the level value of the cell.
S103, if the load of the cell is judged and known to be larger than the threshold value, determining a target neighbor cell of the current balancing process according to the load condition of the same-coverage neighbor cell, and calculating to obtain the target user needing balancing according to the load condition of the target neighbor cell.
Specifically, when a cell meets a high load threshold, a partial same-coverage load balancing process is triggered to start, and a target neighbor cell of the balancing process is selected according to the load condition of partial same-coverage neighbor cells; and simultaneously, according to the load condition of the adjacent cell, obtaining the target user needing to be balanced at this time through calculation.
For example, sorting the same-coverage neighboring cells from low to high, selecting the first 3 same-coverage neighboring cells as target neighboring cells of the current balancing process, that is, target neighboring cell 1, target neighboring cell 2, and target neighboring cell 3, if users with numbers of A, B and C that can be respectively loaded by target neighboring cell 1, target neighboring cell 2, and target neighboring cell 3 are obtained according to the load conditions of target neighboring cell 1, target neighboring cell 2, and target neighboring cell 3, calculating to obtain the number of target users needing balancing this time as a + B + C, and obtaining a corresponding number of target users from the cell.
S104, screening the target user according to a load balancing user selection strategy configured by the base station and the periodic MR data, generating a candidate list of balancing users, and sequentially carrying out load balancing on the users in the candidate list.
Wherein the load balancing user selection policy comprises any combination of: whether the base station is configured with a QoS scale value QCI for prohibiting equalization, whether a corresponding scene is selected according to the set prohibited QCI value, whether the base station is configured with a CA user prohibiting equalization carrier aggregation, filtering users configured with auxiliary carriers, filtering the users according to a position selection switch, and whether the number of the selected users is larger than or equal to the number of the target users.
Specifically, when selecting balanced users, the following 6 strategies are specifically classified, see fig. 2:
1) judging whether the base station is configured with QCI for prohibiting equalization, and dividing the conditions into two conditions:
entering 3 if the QCI for prohibiting equalization is configured;
if no QCI for prohibiting equalization is configured, entering 4;
2) filtering users according to the set forbidden QCI value, wherein the forbidden QCI value can be configured in a range of 1-9, and the common scenes are configured in 1 and 2, namely, the voice and video users are not balanced, so that the user perception can be ensured;
3) judging whether a base station is configured with a user prohibiting balancing CA, and dividing the conditions into two conditions:
if the CA user for forbidding the balance is configured, entering 5;
if no CA user prohibiting equalization is configured, entering 6;
4) filtering out users configured with auxiliary carriers according to the setting, wherein the users comprise users configured with uplink auxiliary carriers and downlink auxiliary carriers;
5) filtering users according to a position selection switch, configuring a balance center user by the position selection switch, and simultaneously configuring a level value to distinguish a center user from an edge user, wherein the level value is configured to be-90 dB by default; when the central user is not enough, sequentially decreasing by 1 dB to select the user; until a sufficient number of users is selected;
6) judging whether the selected user number is more than or equal to N, and dividing the conditions into two conditions:
if the number of the selected users is more than or equal to N, entering 8;
if the number of selected users is less than N, return to 6.
According to the embodiment, the base station records periodic measurement report data, so that the central user can be selected more effectively, the effect of load balancing is achieved, the situation that high load occurs in the adjacent cell due to balancing is reduced, the number of times that the user repeatedly performs balancing among the cells in the network is reduced, and the use efficiency of the user is improved.
Further, on the basis of the above embodiment of the method, after S102, the method further includes:
and S1023, if the terminal reports the periodic MR data again, updating the level value of the local cell in the periodic MR data reported again by the terminal to the level value in the context of the terminal.
The method comprises the following steps that the position of a user is determined by using periodic MR data, so that the load balancing process of part of the same coverage scene is optimized, the periodic MR measurement data needs to be stored, referring to fig. 3, after a terminal is initially accessed to a network, a base station configures the periodic MR data for the terminal, the reporting period is millisecond level and is generally configured within 1 second, and meanwhile, the level value of a cell is added in the terminal context stored at the base station side, and the method specifically comprises the following steps:
s1, the user successfully accesses the network;
s2, the base station judges whether the periodic MR measurement switch is opened or not, and the two conditions are as follows:
if the periodic MR measurement switch is on, go to step S3;
if the periodic MR measurement switch is off, go to step S8;
s3, configuring periodic MR measurement and control information to the terminal through the reconfiguration information, and receiving the transmitted reconfiguration completion information;
s4, the terminal reports MR data according to the configured period and the measurement frequency point in the reconfiguration message; the MR reporting period unit is ms level, is generally configured within 1s and can be configured randomly;
s5, the base station records the level value of the MR cell reported by the terminal into the context of the terminal, and only records the level value of the cell;
s6, judging whether the terminal reports the periodic MR data again, and dividing the two conditions into two conditions:
if the terminal reports the periodic MR data again, the step S7 is carried out;
if the terminal does not report the periodic MR data again, the step S8 is carried out;
s7, the base station updates the level value in the terminal context according to the level value of the cell reported again by the terminal;
s8, finishing storage;
further, on the basis of the above method embodiment, S104 specifically includes:
screening the target user according to a load balancing user selection strategy configured by a base station and the periodic MR data to generate a candidate list of balancing users, sorting the candidate list according to a QoS scale value QCI priority, a physical resource block PRB occupancy rate and a reference signal received power RSRP level value, and sequentially carrying out load balancing on the users in the sorted candidate list.
Specifically, when the user sorts the candidate list, the sorting is mainly divided into three conditions, which are shown in fig. 4:
firstly, the priority of QCI is sorted from low to high, and the priority of the users with low priority of QCI is balanced in the front; the priority value of QCI is low is high. When a User has multiple QCIs, it is determined whether a DRB (Data Radio Bearer) with a QCI of 5 exists in a UE (User Equipment), and if the DRB does not exist, a QCI with a minimum priority value (highest priority) among all QCIs of the User is selected as the QCI of the User. If the user has a DRB with QCI of 5, further determining whether the user has a DRB with QCI not equal to 5, and if so, selecting the QCI with the smallest priority value (highest priority) from the remaining QCIs as the QCI of the user. Otherwise, if the user does not have other DRBs with QCI not equal to 5, then QCI 5 is selected as the user's QCI.
Secondly, sorting the PRB occupancy rates from high to low or from low to high under the condition that the QCI priorities are the same, and sorting the PRB occupancy rates from high to low if the process is based on the load balancing process of the PRBs, so as to reduce the PRB occupancy rate of the cell as fast as possible; if the load balancing process is based on the number of users, the PRB occupancy rates are sorted from low to high, and the aim is to balance the users as much as possible without causing high load of the adjacent cells.
Thirdly, under the condition that QCI priorities are the same and PRB occupancy rates are the same, the RSRP level values are sorted from high to low, and the purpose is to ensure that a user can report a load-balanced A4 measurement report as much as possible to achieve the effect of load balancing;
further, on the basis of the above embodiment of the method, the method further comprises:
s105, estimating the PRB occupancy of the user in the candidate list, if the sum of the PRB occupancy of the user in the candidate list and the current PRB occupancy of the neighbor cell is greater than or equal to a PRB load threshold of the neighbor cell, determining that the user in the candidate list can cause high downlink load of the neighbor cell after being balanced into the neighbor cell, and otherwise determining that the user in the candidate list cannot cause high downlink load of the neighbor cell after being balanced into the neighbor cell;
s106, the uplink PRB occupation amount of the user in the candidate list is estimated, if the sum of the uplink PRB occupation amount of the user in the candidate list and the current neighbor uplink PRB occupation amount is larger than or equal to a neighbor uplink PRB load threshold, it is determined that the uplink high load of the neighbor can be caused after the user in the candidate list is balanced into the neighbor, and otherwise, it is determined that the uplink high load of the neighbor cannot be caused after the user in the candidate list is balanced into the neighbor.
Specifically, the process of load balancing using periodic MR measurement data is shown in fig. 5, and includes the following steps:
b1, when the cell meets the high load threshold, triggering the load balancing process of the same part and the same cover to start;
b2, selecting a target neighbor cell in the balancing process according to the load condition of part of the same coverage neighbor cells; meanwhile, according to the load condition of the adjacent cell, the number N of users needing to be balanced at this time is obtained through calculation;
b3, screening users according to the load balancing user selection strategy configured by the base station, generating a candidate list of balancing users, and completing the selection of N users, wherein a specific flow chart is shown in FIG. 2;
b4, sorting according to the load balancing user sorting strategy set by the base station, that is, sorting the users in the balancing user candidate list according to the sorting strategy, wherein the specific flow chart is shown in fig. 4;
b5, selecting users in sequence, sending A4 measurement configuration information, and receiving configuration completion information sent by the users;
b6, sequentially selecting a candidate user from the balanced user candidate list according to the sorting priority to prepare for balancing, and sequentially selecting the user reporting the measurement report of the load balancing A4 to balance;
b7, judging whether a PRB load balancing algorithm switch is opened in a part of the same-coverage adjacent cells, and dividing the conditions into two conditions:
if the PRB load balancing algorithm switch is turned on, entering step B8;
if the PRB load balancing algorithm switch is closed, performing step B10;
b8, deleting the A4 measurement of the user, and selecting the next user reporting load balance A4 according to the sequence;
b9, pre-judging whether the user will cause high downlink load of the adjacent cell after balanced entering the adjacent cell, and dividing into two conditions:
if the user can cause high downlink load of the adjacent cell after balancing the user into the adjacent cell, the step B7 is carried out;
if the user does not cause high downlink load of the adjacent cell after balancing the user into the adjacent cell, performing step B10;
the prejudging method comprises the following steps: estimating the occupancy of the downlink PRB of the selected user to be balanced, and acquiring the occupancy of the downlink RRB of the current adjacent cell through interaction with the adjacent cell, wherein if the occupancy of the downlink PRB of the selected user to be balanced is a, the occupancy of the downlink PRB of the current adjacent cell is b, and the load threshold of the downlink PRB of the adjacent cell is c, when a + b is greater than c, the user can cause high downlink load of the adjacent cell after being balanced into the adjacent cell, and when a + b is less than c, the user can not cause high downlink load of the adjacent cell after being balanced into the adjacent cell;
b10, pre-judging whether the user will cause the high load of the uplink of the adjacent cell after balanced entering the adjacent cell, and dividing into two conditions:
if the user can cause the uplink high load of the adjacent cell after balancing the user into the adjacent cell, the step B8 is carried out;
if the user does not cause the uplink high load of the adjacent cell after balancing the user into the adjacent cell, performing step B11;
the prejudging method comprises the following steps: estimating the occupancy of the uplink PRB of the selected user to be balanced, and acquiring the occupancy of the uplink RRB of the current adjacent cell through interaction with the adjacent cell, wherein if the occupancy of the uplink PRB of the selected user to be balanced is A, the occupancy of the current uplink PRB of the adjacent cell is B, and the uplink PRB load threshold of the adjacent cell is C, when A + B is greater than C, the user can cause high load of the uplink of the adjacent cell after being balanced into the adjacent cell, and when A + B is less than C, the user can not cause high load of the uplink of the adjacent cell after being balanced into the adjacent cell;
b11, judging whether the current cell load is larger than the recovery threshold, and dividing into two conditions:
if the current cell load is greater than the recovery threshold, entering step B12;
if the current cell load is lower than the recovery threshold, performing step B13;
b12, balancing the users to the same coverage neighbor cells;
b13, finishing the balancing process;
by using the position in the periodic MR data judgment, the ENB (Evolved Node B) can more effectively select the user capable of balancing when carrying out load balancing, thereby providing the effect of load and simultaneously ensuring the perception of the user.
In this embodiment, the base station stores periodic MR data, and updates the level value of the location of the user to the context of the user, for use in the load balancing process; when the base station selects the user, the position of the terminal can be confirmed according to the level value of the online user, and the central user can be selected more effectively; the base station sequences the selected users in different strategies, wherein the strategies comprise QCIs of the users, PRBs of the users and level values of cells where the users are located, so that the balance is more effective; in addition, when load balancing is carried out in a scene partially covered by the same time, when a PRB-based load balancing switch is turned on in an adjacent region, whether downlink and uplink high loads of the adjacent region can be caused after user balancing is carried out is judged in advance before user balancing, if the high loads are achieved, A4 measurement configuration of the user for load balancing is deleted, and the next user is selected for balancing according to user sequencing.
Fig. 6 is a schematic structural diagram of a load balancing apparatus based on periodic measurement reports according to this embodiment, where the apparatus includes: a message configuration module 601, a level value recording module 602, a target user determination module 603, and a load balancing module 604, wherein:
the message configuration module 601 is configured to configure a periodic measurement report MR measurement and control message to the terminal according to the reconfiguration message if it is determined that the measurement switch of the MR is turned on;
the level value recording module 602 is configured to receive periodic MR data reported by the terminal, and record a level value of a local cell in the periodic MR data into a context of the terminal;
the target user determining module 603 is configured to determine a target neighboring cell in the current balancing process according to a load condition of a same-coverage neighboring cell if it is determined that the load of the local cell is greater than the threshold, and calculate a target user needing balancing according to the load condition of the target neighboring cell;
the load balancing module 604 is configured to filter the target user according to a load balancing user selection policy configured by the base station and the periodic MR data, generate a candidate list of balanced users, and sequentially perform load balancing on the users in the candidate list;
the periodic MR data is obtained by the terminal according to the period configured in the periodic MR measurement and control message and the measurement frequency point;
the reconfiguration message is a message sent by the base station to the terminal.
Specifically, if the message configuration module 601 judges that the measurement switch of the periodic measurement report MR is turned on, the periodic MR measurement and control message is configured for the terminal according to the reconfiguration message; the level value recording module 602 receives periodic MR data reported by the terminal according to the period configured in the periodic MR measurement and control message and the measurement frequency point, and records the level value of the cell in the periodic MR data into the context of the terminal; if the target user determining module 603 determines that the load of the cell is greater than the threshold, determining a target neighboring cell in the current balancing process according to the load condition of the same-coverage neighboring cell, and calculating to obtain a target user needing balancing according to the load condition of the target neighboring cell; the load balancing module 604 filters the target user according to the load balancing user selection policy configured by the base station and the periodic MR data, generates a candidate list of balanced users, and sequentially performs load balancing on the users in the candidate list.
According to the embodiment, the base station records periodic measurement report data, so that the central user can be selected more effectively, the effect of load balancing is achieved, the situation that high load occurs in the adjacent cell due to balancing is reduced, the number of times that the user repeatedly performs balancing among the cells in the network is reduced, and the use efficiency of the user is improved.
Further, on the basis of the above embodiment of the apparatus, the apparatus further comprises:
and the level value updating module is used for updating the level value of the cell in the periodic MR data reported again by the terminal to the level value in the context of the terminal if the periodic MR data reported again by the terminal.
Further, on the basis of the above device embodiment, the load balancing user selection policy includes any combination of the following: whether the base station is configured with a QoS scale value QCI for prohibiting equalization, whether a corresponding scene is selected according to the set prohibited QCI value, whether the base station is configured with a CA user prohibiting equalization carrier aggregation, filtering users configured with auxiliary carriers, filtering the users according to a position selection switch, and whether the number of the selected users is larger than or equal to the number of the target users.
Further, on the basis of the above apparatus embodiment, the load balancing module is specifically configured to:
screening the target user according to a load balancing user selection strategy configured by a base station and the periodic MR data to generate a candidate list of balancing users, sorting the candidate list according to a QoS scale value QCI priority, a physical resource block PRB occupancy rate and a reference signal received power RSRP level value, and sequentially carrying out load balancing on the users in the sorted candidate list.
Further, on the basis of the above embodiment of the apparatus, the apparatus further comprises:
the first judgment module is used for estimating the PRB occupancy of the user in the candidate list, if the sum of the PRB occupancy of the user in the candidate list and the PRB occupancy of the current neighbor cell is greater than or equal to a PRB load threshold of the neighbor cell, determining that the user in the candidate list can cause the high downlink load of the neighbor cell after entering the neighbor cell in a balanced manner, and otherwise determining that the user in the candidate list cannot cause the high downlink load of the neighbor cell after entering the neighbor cell in a balanced manner;
and the second judgment module is used for estimating the uplink PRB occupation amount of the user in the candidate list, if the sum of the uplink PRB occupation amount of the user in the candidate list and the current neighbor uplink PRB occupation amount is more than or equal to a neighbor uplink PRB load threshold, determining that the uplink high load of the neighbor can be caused after the user in the candidate list is balanced into the neighbor, and otherwise, determining that the uplink high load of the neighbor cannot be caused after the user in the candidate list is balanced into the neighbor.
The load balancing apparatus based on the periodic measurement report according to this embodiment may be used to implement the method embodiments, and the principle and the technical effect are similar, which are not described herein again.
Referring to fig. 7, the electronic device includes: a processor (processor)701, a memory (memory)702, and a bus 703;
wherein the content of the first and second substances,
the processor 701 and the memory 702 complete communication with each other through the bus 703;
the processor 701 is configured to call the program instructions in the memory 702 to execute the methods provided by the above-described method embodiments.
The present embodiments disclose a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, enable the computer to perform the methods provided by the above-described method embodiments.
The present embodiments provide a non-transitory computer-readable storage medium storing computer instructions that cause the computer to perform the methods provided by the method embodiments described above.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
It should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A load balancing method based on periodic measurement reports is characterized by comprising the following steps:
if the base station judges that the measurement switch of the periodic measurement report MR is turned on, configuring a periodic MR measurement and control message to the terminal according to the reconfiguration message;
receiving periodic MR data reported by the terminal, and recording the level value of the local cell in the periodic MR data into the context of the terminal;
if the load of the cell is judged and known to be larger than the threshold value, determining a target neighbor cell of the balancing process according to the load condition of the same-coverage neighbor cell, and calculating to obtain a target user needing balancing according to the load condition of the target neighbor cell;
screening the target user according to a load balancing user selection strategy configured by a base station and the periodic MR data to generate a candidate list of balancing users, and sequentially carrying out load balancing on the users in the candidate list;
and the periodic MR data is obtained by processing the terminal according to the period configured in the periodic MR measurement and control message and the measurement frequency point.
2. The method according to claim 1, wherein after receiving the periodic MR data reported by the terminal and recording the level value of the local cell in the periodic MR data into the context of the terminal, the method further comprises:
and if the terminal reports the periodic MR data again, updating the level value of the cell in the periodic MR data reported again by the terminal to the level value in the context of the terminal.
3. The method of claim 1, wherein the load balancing user selection policy comprises any combination of: whether the base station is configured with a QoS (quality of service) scale value QCI (quality of service) for prohibiting equalization, selecting a corresponding scene according to the set prohibited QCI value, whether the base station is configured with a CA (Carrier aggregation) user prohibiting equalization, filtering users configured with auxiliary carriers, filtering the users according to a position selection switch, and whether the number of the selected users is more than or equal to the number of the target users.
4. The method according to claim 1, wherein the screening the target user according to the load balancing user selection policy configured by the base station and the periodic MR data to generate a candidate list of balanced users, and sequentially performing load balancing on the users in the candidate list comprises:
screening the target user according to a load balancing user selection strategy configured by a base station and the periodic MR data to generate a candidate list of balancing users, sorting the candidate list according to a QoS scale value QCI priority, a physical resource block PRB occupancy rate and a reference signal received power RSRP level value, and sequentially carrying out load balancing on the users in the sorted candidate list.
5. The method according to any one of claims 1 to 4, wherein the determining a target neighboring cell in the current balancing process according to the load condition of the same-coverage neighboring cell, and calculating to obtain a target user needing balancing according to the load condition of the target neighboring cell specifically includes:
and sequencing according to the load conditions of the same-coverage adjacent cells from low to high, selecting the previous preset number of same-coverage adjacent cells as target adjacent cells of the balancing process, and calculating according to the load conditions of the target adjacent cells to obtain the target user needing balancing.
6. The method according to any one of claims 1-4, further comprising:
estimating the PRB occupancy of the user in the candidate list, if the sum of the PRB occupancy of the user in the candidate list and the current PRB occupancy of the neighbor cell is greater than or equal to the PRB load threshold of the neighbor cell, determining that the user in the candidate list can cause high downlink load of the neighbor cell after being balanced into the neighbor cell, or else determining that the user in the candidate list cannot cause high downlink load of the neighbor cell after being balanced into the neighbor cell;
and estimating the uplink PRB occupation amount of the users in the candidate list, if the sum of the uplink PRB occupation amount of the users in the candidate list and the current neighbor uplink PRB occupation amount is more than or equal to a neighbor uplink PRB load threshold, determining that the uplink high load of the neighbor can be caused after the users in the candidate list enter the neighbor in a balanced manner, and otherwise determining that the uplink high load of the neighbor cannot be caused after the users in the candidate list enter the neighbor in a balanced manner.
7. A load balancing apparatus based on periodic measurement reports, comprising:
the message configuration module is used for configuring a periodic measurement report MR measurement and control message to the terminal according to the reconfiguration message if the measurement switch of the MR is judged to be turned on;
the level value recording module is used for receiving periodic MR data reported by the terminal and recording the level value of the local cell in the periodic MR data into the context of the terminal;
the target user determining module is used for determining a target neighbor cell in the balancing process according to the load condition of the same coverage neighbor cell if the load of the cell is judged and known to be larger than the threshold value, and calculating to obtain the target user needing balancing according to the load condition of the target neighbor cell;
the load balancing module is used for screening the target user according to a load balancing user selection strategy configured by the base station and the periodic MR data, generating a candidate list of balanced users and sequentially carrying out load balancing on the users in the candidate list;
and the periodic MR data is obtained by processing the terminal according to the period configured in the periodic MR measurement and control message and the measurement frequency point.
8. The apparatus of claim 7, further comprising:
and the level value updating module is used for updating the level value of the cell in the periodic MR data reported again by the terminal to the level value in the context of the terminal if the periodic MR data reported again by the terminal.
9. An electronic device, comprising:
at least one processor; and
at least one memory communicatively coupled to the processor, wherein:
the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform the method of any of claims 1 to 6.
10. A non-transitory computer-readable storage medium storing a computer program that causes a computer to perform the method according to any one of claims 1 to 6.
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