CN104105135B

CN104105135B - A kind of mobility load balance, utilization rate of air interface resource statistical method and equipment

Info

Publication number: CN104105135B
Application number: CN201310113045.5A
Authority: CN
Inventors: 鲍炜; 王彦; 刘爱娟
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2013-04-02
Filing date: 2013-04-02
Publication date: 2019-02-01
Anticipated expiration: 2033-04-02
Also published as: CN104105135A

Abstract

The invention discloses a kind of mobility load balance, utilization rate of air interface resource statistical method and equipment, this method comprises: target BS utilizes QoS demand corresponding to data flow, statistic of classification interface-free resources service condition；Target BS generates the cell radio bearers information comprising interface-free resources service condition；Cell radio bearers information is sent to source base station by target BS；Source base station executes mobility load balance using cell radio bearers information.In the embodiment of the present invention, target BS can be based on the QoS demand corresponding to data flow, statistic of classification interface-free resources service condition, and interface-free resources service condition is notified to source base station, source base station executes mobility load balance using the interface-free resources service condition that data flow corresponds to QoS, it is more and/or allow to be preempted business and occupy cell more than resource as the Target cell for being supported equilibrium to preferentially select low service priority to occupy resource, the efficiency of load balancing is improved, influence of the load balancing to user experience is reduced.

Description

Mobile load balancing and air interface resource utilization rate statistical method and equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for mobility load balancing and air interface resource utilization statistics.

Background

A Physical Resource Block (PRB) is the minimum granularity for Resource allocation of an LTE (Long Term Evolution) system, and a time-frequency Resource Block with a time length of 1ms and a frequency bandwidth of 180kHz corresponds to one PRB. GBR (Guaranteed Bit Rate) services refer to a class of services in which a network needs to reserve resources to guarantee a specified service Rate. An NGBR (Non Guaranteed Bit Rate) service refers to a class of services in which a network does not need to reserve resources and does not promise a service Rate, and the network only needs to perform service transmission in a best effort manner, that is, if the network has resources, the service transmission is scheduled; if the network has no resources, the traffic transmission is not scheduled.

The mobile load balancing technology is used for a scene of unbalanced distribution of Service loads among multiple cells, and changes the distribution of the Service loads in different cells by adjusting mobility parameters among the cells, so that the utilization rate of wireless resources of different cells is relatively even, and the Quality of Service (QoS) of established services is ensured. Based on the mobile load balancing technology, when the load of a certain cell is judged to be too high, part of users enter a low-load cell from a high-load cell by adjusting switching and cell reselection parameters, so that the aim of guiding the load from the high-load cell to the low-load cell is fulfilled.

The mobile load balancing process includes the steps of load interaction, parameter negotiation/adjustment, and the like, and the load interaction process can be further divided into a load interaction triggering/configuration process and a load information reporting process.

In the load interaction triggering/configuration process, a source base station (namely, a source eNB) sends a resource state request message to a target base station (namely, a target eNB); if the Registration Request carried in the resource state Request message is set as start, the target base station completes the initialization of load measurement according to the relevant parameters; if the RegistrationRequest is set to stop, the target base station terminates the load measurement and reporting procedure. The resource status request message may carry a measurement type for indicating a measurement quantity that the target base station needs to report; and the report period is used for indicating the interval of the subsequent load measurement report of the target base station, and the period defined by the protocol is (1 second, 2 seconds, 5 seconds, 10 seconds or longer). Further, if the target base station successfully initializes the designated load measurement, a resource state response message is returned to the source base station, otherwise, a resource state error message is returned and carries an error reason.

In the process of reporting the load information, the target base station periodically reports the load information of the target base station to the source base station, wherein the load information specifically comprises: (1) cell radio load: the method comprises the steps that in a statistical time period, UL/DL GBR PRB usage (the percentage of PRBs used by uplink/downlink GBR services to the total available uplink/downlink PRBs of a system); UL/DL non-GBR PRusage (the percentage of PRBs used by the uplink/downlink NGBR traffic to the total available uplink/downlink PRBs of the system); UL/DL Total PRBlock (the percentage of Total PRBs used by the uplink/downlink traffic to the Total available uplink/downlink PRBs of the system). (2) Hardware load information of the target base station: it includes hardware utilization, such as CPU (Central Processing Unit) utilization. (3) TNL (Transport Network Layer) load indication information of the target base station: the load of the bandwidth of the transmission network connected with the target base station, the sub-high load, the medium load, the low load and the like are included. (4) Remaining capacity of cell: the method comprehensively considers the conditions of the wireless load of the cell, the hardware load information of the target base station and the TNL load indication information of the target base station, and comprises two parts of the cell capacity level and the percentage of the residual capacity.

In the process of implementing the invention, the inventor finds that at least the following problems exist in the prior art:

at present, the statistics of the wireless load of the cell only roughly calculate UL/DL GBR PRB usage, UL/DL non-GBR PRB usage, UL/DL Total PRB usage and the like, thereby causing the situation that the load balancing effect is not ideal. The following is a detailed description with reference to specific examples.

The utilization rate of the air interface downlink resource of the Cell a under the base station a is 80%, and the detailed conditions are as follows: DL GBR PRusage is 20%, DL non-GBR PRusage is 60%, and DL Total PRusage is 80%. In 60% of resources used by the NGBR service, 50% of PRBs are occupied by the video service, and 10% of PRBs are occupied by the FTP (File Transfer Protocol) service. The utilization rate of the downlink resource of the air interface of the Cell B under the base station B is 90%, and the detailed conditions are as follows: DL GBR PRBusage is 20%, DL non-GBR PRusage is 70%, and DL Total PRusage is 90%. In 70% of resources used by the NGBR service, the video service occupies 10% of the PRBs, and the FTP service occupies 60% of the PRBs.

When the load of a Cell C in a common adjacent Cell of the Cell A and the Cell B is too high and partial load needs to be transferred to the adjacent Cell, the eNB where the Cell C is located may determine that the load of the Cell A is lighter according to DL GBR PRusage, DL non-GBR PRB usage and DL Total PRBusage of the Cell A and the Cell B, and preferentially adjust mobility parameters between the Cell C and the Cell A, so as to guide UE (User Equipment) to be switched/reselected to the Cell A.

In the above example, a large amount of resources in Cell B are allocated to a preemptible service (i.e. FTP service, the reason why FTP service can be preempted is that when the bandwidth of FTP service is decreased, the user download rate is decreased, but generally there is no great influence on user experience, when system resources are limited and a high-priority new service is to be accessed, the network will release part of resources by using the method of decreasing the rate of FTP service to admit new service), while a large amount of resources in Cell a are allocated to a non-preemptible service (i.e. video service, the reason why video service is not preemptable is that when the bandwidth of video service is decreased, the user download rate is decreased, which may cause interruption (data buffering) of video service, which generally causes great influence on user experience, and when system resources are limited, generally the resources of the network can be preempted by priority, to admit new high priority traffic); in summary, although the air interface resource occupancy rate of Cell B is slightly higher than that of Cell a, Cell B may be a better load transfer target Cell from the perspective of ensuring the overall system performance and user experience.

Disclosure of Invention

Embodiments of the present invention provide a method and an apparatus for mobility load balancing and air interface resource utilization statistics, so as to transfer a load to a most appropriate target cell in a mobility load balancing process.

In order to achieve the above object, an embodiment of the present invention provides a mobile load balancing method, including:

the target base station classifies and counts the use condition of air interface resources by using the QoS (quality of service) requirement corresponding to the data stream;

the target base station generates cell wireless load information containing the air interface resource use condition;

the target base station sends the cell wireless load information to a source base station; performing, by the source base station, mobility load balancing using the cell radio load information.

The embodiment of the invention provides a mobile load balancing method, which comprises the following steps:

a source base station receives cell wireless load information from a target base station, wherein the cell wireless load information comprises air interface resource use conditions which are classified and counted according to quality of service (QoS) requirements corresponding to data flows;

and the source base station performs mobile load balancing by using the cell wireless load information.

An embodiment of the present invention provides a base station device, including:

the statistical module is used for carrying out classified statistics on the service condition of the air interface resources by utilizing the service quality QoS requirement corresponding to the data stream;

a generating module, configured to generate cell radio load information including the usage of the air interface resource;

a sending module, configured to send the cell radio load information to a source base station; performing, by the source base station, mobility load balancing using the cell radio load information.

a receiving module, configured to receive cell wireless load information from a target base station, where the cell wireless load information includes air interface resource usage conditions classified and counted according to quality of service (QoS) requirements corresponding to data streams;

and the processing module is used for executing mobile load balancing by utilizing the cell wireless load information.

The embodiment of the invention provides a method for counting utilization rate of air interface resources, which comprises the following steps:

the base station equipment classifies and counts the use condition of air interface resources by using the QoS (quality of service) requirement corresponding to the data stream; the QoS requirements corresponding to the data flows include: the QoS classification indicates QCI, and/or preempts/maintains priority ARP; the QCI is used for indicating the scheduling priority of the data stream, the comprehensive attributes of a delay index and a packet loss/error rate index; ARP is used to indicate the priority of a data flow, the ability to preempt other services, and the attributes of whether it can be preempted by other services.

the statistical module is used for carrying out classified statistics on the service condition of the air interface resources by utilizing the service quality QoS requirement corresponding to the data stream; the QoS requirements corresponding to the data flows include: the QoS classification indicates QCI, and/or preempts/maintains priority ARP; the QCI is used for indicating the scheduling priority of the data stream, the comprehensive attributes of a delay index and a packet loss/error rate index; ARP is used to indicate the priority of a data flow, the ability to preempt other services, and the attributes of whether it can be preempted by other services.

Compared with the prior art, the embodiment of the invention at least has the following advantages: in the embodiment of the invention, the target base station can classify and count the using condition of the air interface resources based on the QoS requirements corresponding to the data stream, and inform the source base station of the using condition of the air interface resources, and the source base station performs mobile load balancing by using the using condition of the air interface resources corresponding to the QoS of the data stream, so that a cell with more resources occupied by low service priority and/or more resources allowed to be occupied by the preempted service can be preferentially selected as a target cell with balanced load, the load is transferred to the most appropriate target cell, the load balancing efficiency is improved, and the influence of the load balancing on user experience is reduced.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without inventive labor.

Fig. 1 is a schematic flow chart of a mobile load balancing method according to an embodiment of the present invention;

fig. 2 is a schematic flow chart of a mobile load balancing method according to a second embodiment of the present invention;

fig. 3 is a schematic flow chart of a mobile load balancing method according to a third embodiment of the present invention;

fig. 4 is a schematic flow chart of a mobile load balancing method according to a fourth embodiment of the present invention;

fig. 5 is a schematic structural diagram of a base station device (target base station) according to a seventh embodiment of the present invention;

fig. 6 is a schematic structural diagram of a base station device (source base station) according to an eighth embodiment of the present invention.

Detailed Description

The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

The mobile load balancing means that the source base station transfers part of services of the administered heavy load cell to other adjacent or same-covered light load cells by automatically adjusting the mobility parameters so as to realize reasonable distribution of service loads among the cells. In the LTE system, the mobile load balancing mechanism is applicable to network deployment scenarios of Intra-LTE (i.e., between LTE base station devices) and Inter-RAT (i.e., between LTE base station devices and other system access network nodes); in the implementation process of mobile load balancing, a source base station monitors the load state of a subordinate cell, interacts load information with an adjacent target base station through an X2 or S1 interface, and enables a UE (user equipment) served by the source base station to be more easily switched or reselected to an adjacent light-load cell by adjusting the mobility parameter of an overloaded cell according to the obtained load information.

In view of the problems in the prior art, an embodiment of the present invention provides a mobile load balancing method, where a source base station may preferentially select a cell with a low service priority and occupying more resources and/or allowing a preempted service to occupy more resources as a target cell to be load balanced, so as to transfer a load to a most appropriate target cell (a so-called appropriate target cell is a cell that, in a mobile load balancing process, leads a load to the target cell, which causes a reduction in performance of the entire system and overall user experience), thereby improving load balancing efficiency and reducing an influence of load balancing on user experience.

As shown in fig. 1, the mobile load balancing method may include the following steps:

and step 101, the target base station classifies and counts the use condition of air interface resources by using the QoS requirement corresponding to the data stream. In the embodiment of the present invention, the QoS requirements corresponding to the data stream specifically include, but are not limited to: QCI (QoS ClassIdentifier, QoS class indication); and/or, ARP (Allocation/Retention Priority); the QCI is a number and is used for indicating the scheduling priority of a data stream, the comprehensive attributes of a delay index and a packet loss/error rate index; the ARP is used to indicate the priority of the data stream, the ability to preempt other services, and the attributes of whether the data stream can be preempted by other services.

In the embodiment of the present invention, the target base station classifies and counts the usage of air interface resources by using QoS requirements (QCI and/or ARP) corresponding to data streams, which specifically includes, but is not limited to, the following ways:

in the first mode, when the QoS requirement corresponding to the data stream is QCI, the target base station classifies and counts the number of PRBs used by each QCI by using the QCI corresponding to each data stream in the counting time period, and calculates the percentage of the number of PRBs used by each QCI to the total available number of PRBs in the counting time period according to the counting result. Specifically, the target base station determines a QCI corresponding to the scheduled data stream and the number of PRBs used by the QCI within a statistical time period, and accumulates the determination result to the number of PRBs used by the QCI; when different QCI data of the same UE are multiplexed and scheduled together, the target base station determines the number of PRBs used by each QCI according to the size proportion of a data packet corresponding to each QCI; when the counting time period is over, the target base station divides the total available PRB number in the counting time period by the PRB number used by each QCI to obtain the average number of the air interface resources occupied by each QCI (namely the air interface resource use condition).

And secondly, when the QoS requirement corresponding to the data stream is ARP, the target base station utilizes the ARP corresponding to each data stream to classify and count the PRB number used by each ARP in a counting time period, and calculates the percentage of the PRB number used by each ARP in the total available PRB number in the counting time period according to the counting result. Specifically, the target base station determines an ARP corresponding to the scheduled data stream and the number of PRBs used by the ARP within a statistical time period, and adds the determination result to the number of PRBs used by the ARP; when different ARP data of the same UE are multiplexed and scheduled together, the target base station determines the number of PRBs used by each ARP according to the size proportion of the data packet corresponding to each ARP; when the counting time period is over, the target base station divides the total available PRB number in the counting time period by the PRB number used by each ARP to obtain the average number of the air interface resources occupied by each ARP (namely the air interface resource use condition).

In the embodiment of the present invention, the number of PRBs used by each ARP counted by the target base station specifically includes, but is not limited to: the ARP is the priority of the data flow, the capability of preempting other services and the number of PRBs used by the data flow which can be preempted by other services or not.

For example, ARP is the number of PRBs used by a data stream that has the capability of preempting other services and cannot be preempted by other services; ARP is the number of PRBs used by the data stream which has the capability of seizing other services and can be seized by other services; ARP is the number of PRBs used by a data stream which does not have the capacity of seizing other services and cannot be seized by other services; ARP is the number of PRBs used by a data stream that does not have the ability to preempt other traffic and that can be preempted by other traffic.

Taking ARP priority 1 and ARP priority 2 as examples, the number of PRBs used by a data stream having ARP priority 1, the capability of preempting other services, and the inability to be preempted by other services; the number of PRBs used by a data stream with the ARP priority of 1, which has the capability of seizing other services and can be seized by other services; by analogy, the number of PRBs used by the data stream with the ARP priority of 2, which has the capability of seizing other services and cannot be seized by other services; the number of PRBs used by a data stream having an ARP priority of 2, which has the capability of preempting other services and can be preempted by other services.

And thirdly, when the QoS requirement corresponding to the data stream is the combination of the QCIs and the ARP, the target base station classifies and counts the number of the PRBs used by the combination of the ARP and the QCIs according to the combination of the ARP and the QCIs corresponding to the data stream in the counting time period, and calculates the percentage of the number of the PRBs used by the combination of the ARP and the QCIs in the total available PRBs in the counting time period according to the counting result.

Specifically, the target base station determines, within a statistical time period, a combination of an ARP and a QCI corresponding to the scheduled data stream and the number of PRBs used by the combination of the ARP and the QCI, and adds a determination result to the number of PRBs used by the combination of the ARP and the QCI; when the data of different ARP and QCI combinations of the same UE are multiplexed and scheduled together, the target base station determines the number of PRBs used by each ARP and QCI combination according to the size proportion of the data packets corresponding to each ARP and QCI combination; further, when the counting time period is over, the target base station needs to divide the number of PRBs used by the combination of the ARP and the QCI by the total number of available PRBs in the counting time period to obtain the average number of air interface resources occupied by the combination of the ARP and the QCI (i.e., the usage of the air interface resources).

In the embodiment of the present invention, the number of PRBs used by each ARP and QCI combination counted by the target base station specifically includes, but is not limited to: for each data flow of QCI, the ARP can be counted as the priority of the data flow, the ability to preempt other services, and the number of PRBs used by the data flow which can be preempted by other services. For example, the data flow of each QCI can be divided into the following cases to count the number of PRBs, and ARP is the number of PRBs used by the data flow which has the capability of seizing other services and cannot be seized by other services; ARP is the number of PRBs used by the data stream which has the capability of seizing other services and can be seized by other services; ARP is the number of PRBs used by a data stream which does not have the capacity of seizing other services and cannot be seized by other services; ARP is the number of PRBs used by a data stream that does not have the ability to preempt other traffic and that can be preempted by other traffic.

Step 102, the target base station generates cell wireless load information containing air interface resource use conditions.

In this embodiment of the present invention, the cell radio load information at least includes a usage situation of air interface resources corresponding to the cell (that is, the cell radio load information counted in this embodiment of the present invention, such as a percentage of the number of PRBs used by ARP and/or QCI to the total number of available PRBs in the counted time period).

And 103, the target base station sends the cell wireless load information to the source base station.

And 104, the source base station receives cell wireless load information from the target base station, wherein the cell wireless load information comprises air interface resource use conditions classified and counted according to QoS requirements corresponding to the data streams.

And 105, the source base station performs mobile load balancing by using the cell wireless load information.

In the embodiment of the present invention, the process of performing mobile load balancing by a source base station using cell radio load information specifically includes: after determining that the load of a cell under the jurisdiction of the base station exceeds a specified threshold (which can be set according to an actual experience value), the source base station determines a plurality of candidate cells having an adjacent relation with the cell under the jurisdiction; the source base station determines cell wireless load information corresponding to each candidate cell, and determines load conditions and air interface resource use conditions corresponding to each candidate cell; when the load condition corresponding to each candidate cell meets a first load type (namely, the candidate cells with loads much lighter than those of other candidate cells), the source base station selects the candidate cell with the lightest load as a target cell by using the load condition corresponding to each candidate cell, and performs mobile load balancing between the subordinate cell and the target cell; and/or, when the load condition corresponding to each candidate cell meets a second load type (that is, there are no candidate cells with loads much lighter than those of other candidate cells, the load conditions between the candidate cells are not much different, and the load conditions of the candidate cells are all less than a certain threshold, such as 60%), the source base station selects a target cell from the candidate cells by using the QoS-based air interface resource usage condition corresponding to each candidate cell, and performs mobile load balancing between the subordinate cell and the target cell; and/or when the load condition corresponding to each candidate cell meets a third load type (that is, there are no candidate cells with loads much lighter than those of other candidate cells, the load conditions between the candidate cells are not much different, and the load conditions of the candidate cells are all greater than a certain threshold, for example, 80%), the source base station selects a target cell from the candidate cells by using the QoS-based air interface resource usage condition corresponding to each candidate cell, and performs mobile load balancing between the subordinate cell and the target cell.

In another specific implementation manner of the embodiment of the present invention, when the source base station (i.e. the base station device to which the heavily loaded cell (the cell to which the load needs to be split) belongs) determines that the load condition corresponding to each candidate cell satisfies the third load type, when the source base station determines that no suitable neighbor cell for load distribution is available (for example, the loads of the neighbor cells are all heavy (for example, more than 80%, or more than the load of the heavily loaded cell to be load distributed), and the QoS requirement of the service is higher than the QoS requirement of the heavily loaded cell (for example, the minimum QoS of the neighbor cell is higher than the QoS of the service of the cell to be load distributed, or the minimum QoS of the neighbor cell is equal to the minimum QoS of the heavily loaded cell to be load distributed, and the number of PRBs occupied by the QoS service of the neighbor cell is less than the number of PRBs occupied by the QoS service of the heavily loaded cell to be load distributed), the source base station may also release the low QoS service in the heavily loaded cell to be load distributed to ensure the quality of service of the high QoS service.

In the embodiment of the present invention, the determining, by the source base station, the load condition corresponding to each candidate cell specifically includes: when the cell wireless load information comprises the load condition corresponding to each candidate cell and the air interface resource use condition, the source base station directly obtains the load condition corresponding to each candidate cell from the cell wireless load information; when the cell radio load information includes the air interface resource usage corresponding to each candidate cell, the source base station may calculate the load condition corresponding to each candidate cell by using the air interface resource usage corresponding to each candidate cell; the load condition is the wireless load information of the existing cell, such as UL/DL GBR PRB usage, UL/DL non-GBR PRB usage, UL/DL Total PRB usage, and the like.

In the embodiment of the present invention, the source base station selects the target cell from each candidate cell by using the QoS-based air interface resource usage corresponding to each candidate cell, which specifically includes, but is not limited to, the following manners:

when the air interface resource use condition based on the QoS is the condition that each QCI grade service occupies air interface resources, the source base station determines the air interface resource use condition of the service with low QCI grade in each candidate cell and preferentially selects the candidate cell with low QCI grade service occupying more air interface resources as a target cell; or, when the air interface resource usage based on the QoS is the air interface resource usage occupied by each ARP attribute service, the source base station determines that the ARP attribute in each candidate cell is the air interface resource usage of a service that can be preempted by other services, and preferentially selects the candidate cell whose ARP attribute is that the service that can be preempted by other services occupies a large amount of air interface resources as the target cell; or, when the QoS-based air interface resource usage is that each ARP attribute service occupies an air interface resource under each QCI level, the source base station determines that the QCI level in each candidate cell is lower than the QCI level of the service to be distributed, and the ARP attribute is the air interface resource usage of the service that can be occupied by other services, and preferentially selects the candidate cell whose QCI level is lower than the QCI level of the service to be distributed, and the ARP attribute is that the candidate cell that can be occupied by the service that can be occupied by other services occupies a large amount of air interface resources as the target cell.

when the number of the services with high QCI level in the subordinate cell is larger than a preset first numerical value (set according to an actual experience value, namely the number of the services with high QCI level is large), the source base station determines the use condition of air interface resources of the services with low QCI level in each candidate cell, and preferentially selects the candidate cell with low QCI level occupying more air interface resources as a target cell; or, when the ARP attribute in the subordinate cell is that the number of services having the capability of preempting other services is greater than a preset second value (set according to an actual experience value, that is, the ARP attribute is that the number of services having the capability of preempting other services is large), the source base station determines the usage of air interface resources of the services having the ARP attribute capable of being preempted by other services in each candidate cell, and preferentially selects the candidate cell having the ARP attribute capable of being preempted by other services and occupying a large amount of air interface resources as the target cell.

In the embodiment of the present invention, the process of performing mobile load balancing between the subordinate cell and the target cell by the source base station specifically includes: the source base station and a target base station corresponding to the target cell carry out mobility parameter negotiation, and if the parameter negotiation is successful, the source base station needs to adjust mobility parameters so that the UE can be more easily switched from the cell under jurisdiction or reselected to the target cell; the mobility parameters specifically include, but are not limited to: switching signal threshold, reselecting signal threshold, and the time threshold that the signals from the serving cell and the target cell received by the UE satisfy the signal threshold.

In this embodiment of the present invention, before step 101, the source base station may further determine a statistical manner of the target base station, and notify the statistical manner of the target base station to the target base station through the report type configuration message, and the target base station performs statistics on the usage of the air interface resource according to the statistical manner (i.e., step 101 is executed). The statistical method of the target base station specifically indicates the target base station to count the air interface resource use condition of the QCI, or count the air interface resource use condition of the ARP, or count the air interface resource use condition of the combination of the ARP and the QCI; for example, when the report type configuration message carries the number 1, the target base station is instructed to count the air interface resource usage of the QCI; when the report type configuration message carries the number 2, indicating the target base station to count the air interface resource use condition of the ARP; and when the report type configuration message carries the number 3, indicating the target base station to count the air interface resource use condition of the combination of the ARP and the QCI.

The technical solutions provided by the embodiments of the present invention are described in detail below with reference to specific embodiments.

Example two

In the embodiment of the present invention, a QoS requirement is taken as an example to explain, that is, a target base station needs to perform a classified statistics on the number of PRBs occupied by various QCI data according to different QCIs of data streams; the QCI is a number and is used for indicating the scheduling priority of a data stream, the comprehensive attributes of a delay index and a packet loss/error rate index; for example, a data stream with QCI of 1 may be defined, the corresponding scheduling priority is 2, the maximum tolerable delay is 100ms, and the maximum loss/packet error rate is 0.01.

As shown in fig. 2, the mobile load balancing method may include the steps of:

step 201, in the statistical time period, when the target base station performs resource scheduling, according to the difference of QCI attributes of each data stream, performing classified statistics on the number of PRBs used by each uplink and downlink QCI.

Specifically, the target base station sets a statistical repetition period as T, and the setting of the period T may be matched with the transmission period of the resource interaction message between the target base station and the source base station, if the two are set to be the same; in a statistical period (namely a statistical time period of the period), the target base station makes statistics on the scheduling condition of each cell under the jurisdiction: and for the scheduled data packet, determining the QCI attribute corresponding to the data packet and the number of PRBs used by the QCI, and accumulating the determination result to the number of PRBs used by the QCI.

It should be noted that, when different QCI data of the same UE are multiplexed and scheduled together, the target base station needs to determine the number of PRBs used by each QCI according to the size ratio of the data packet corresponding to each QCI. For example, at a certain time, 200 bits of QCI =1 packets and 300 bits of QCI =2 packets are scheduled, the network allocates 8 PRBs to the UE, and then 3.2 PRBs are occupied by QCI =1 packets; the data packet of QCI =2 occupies 4.8 PRBs.

Step 202, the target base station calculates the percentage of the number of PRBs used by each QCI to the total available number of PRBs in the statistical time period according to the statistical result.

Specifically, when the counting time period is over (i.e., when the counting period is over), the target base station divides the total available PRB number of the cell in the counting time period by the PRB number used by each QCI to obtain the average number of air interface resources occupied by each QCI (i.e., the usage of the air interface resources).

In step 203, the target base station generates cell radio load information including the usage of the air interface resource (i.e., the percentage of the number of PRBs used by each QCI to the total number of available PRBs in the statistical time period), and sends the cell radio load information including the usage of the air interface resource to the source base station.

The target base station may multiplex an existing Resource status update message to send cell radio load information including air interface Resource usage to the source base station; or, defining a new signaling and sending the cell wireless load information containing the air interface resource use condition to the source base station.

In step 204, the source base station receives the cell wireless load information from the target base station, and performs mobile load balancing by using the cell wireless load information. Wherein, the cell radio load information at least includes the air interface resource usage corresponding to the cell.

Specifically, after the load of a Cell under jurisdiction (such as Cell x) of a source base station exceeds a specified threshold, a plurality of candidate cells having an adjacent relation with the Cell under jurisdiction (Cell x) are determined; then, the source base station determines Cell wireless load information corresponding to each candidate Cell (namely, a Cell having an adjacent relation with the Cell x) and load conditions corresponding to each candidate Cell (when the Cell wireless load information includes the load conditions corresponding to each candidate Cell, the Cell wireless load information can be directly determined by using the content carried in the Cell wireless load information; otherwise, the load conditions corresponding to each candidate Cell can be calculated by using the air interface resource use conditions corresponding to each candidate Cell) according to the received Cell wireless load information from each target base station; if a candidate cell with the lightest load (which should be lighter than the load of the cell under jurisdiction) exists, selecting the candidate cell with the lightest load as a target cell; if the candidate cell with the lightest load is a plurality of candidate cells with similar loads, and the load condition of each candidate cell is smaller than a certain threshold (such as 60%), the candidate cell with lower QCI grade and more air interface resources occupied by the service is preferentially selected as the target cell, and the QCI grade of the selected target cell is lower than the QCI grade of the service transferred to the target cell in the cell under jurisdiction.

If the candidate cell with the lightest load is a plurality of candidate cells with similar loads, and the load condition of each candidate cell is larger than a certain threshold (such as 80%), preferentially selecting the candidate cell with lower QCI grade and more air interface resources occupied by the service as the target cell, wherein the QCI grade of the selected target cell is lower than the QCI grade of the service transferred to the target cell in the cell under jurisdiction; or, determining that there is no suitable neighbor cell for offloading the load, and releasing the low QoS traffic (low QCI level) in the heavily loaded cell to be offloaded (i.e., the above-mentioned subordinate cell) to ensure the quality of service of the high QoS traffic (high QCI level).

In the embodiment of the present invention, after the source base station selects the target cell, the source base station further needs to perform mobility load balancing between the cell under jurisdiction (such as Cellx) and the target cell. Specifically, the source base station and the target base station corresponding to the target cell perform mobility parameter negotiation. If the parameter negotiation is successful, the source base station needs to adjust the mobility parameters so that the UE can be more easily switched or reselected from the subordinate cell to the target cell; the mobility parameters specifically include, but are not limited to: a handover signal threshold, a reselection signal threshold (e.g., a difference threshold of signal quality received by the UE from the target cell and the current serving cell), a handover time threshold (e.g., a time required for the difference between the current serving cell and the target cell to exceed the threshold before handover reporting trigger), and so on. If the negotiation is not successful, the source base station needs to reselect the target cell from the candidate cells and re-perform the mobile load balancing process.

In the embodiment of the present invention, if the source base station corresponds to more high-QCI-level services and needs to perform mobile load balancing, the source base station may select a candidate cell that occupies more resources for a low-QCI-level service (e.g., a service corresponding to a QCI that has a low scheduling priority for a data stream, can endure a maximum time delay, and has a high maximum packet loss/error rate) as a target cell for mobile load balancing. For example: and if the PRB occupied by the data of which the QCI is lower than a corresponding to the Cell m is larger than the PRB occupied by the data of which the QCI is lower than a corresponding to the Cell n, the Cell m is selected as the target Cell for executing the mobile load balancing.

In the embodiment of the invention, the relative priorities among different QCIs can be specified for each target base station through OAM, so that the target cell can be selected when the source base station performs mobile load balancing.

EXAMPLE III

In the embodiment of the invention, QoS requirements are taken as an example for explaining the ARP, namely, a target base station needs to classify and count the number of PRBs occupied by various ARP data according to different ARP of data streams; the ARP is used to indicate the priority of the data stream, the capability of preempting other services, and the attribute of whether the data stream can be preempted by other services. For example, in consideration of user experience and network efficiency, an operator usually sets data transmission related to real-time services as a high priority, and has the capability of preempting low-priority service resources, and occupied resources cannot be preempted by other services; and the non-real-time service, such as the data transmission related to the periodic email receiving and sending, is set to be in low priority, so that the capacity of occupying other service resources is not provided, and the occupied resources can be occupied by other services.

As shown in fig. 3, the mobile load balancing method may include the steps of:

step 301, in the statistical time period, when the target base station performs resource scheduling, according to the different ARP attributes of each data stream, performing a classified statistics on the number of PRBs used by each ARP in uplink and downlink.

Specifically, the target base station sets a statistical repetition period as T, and the setting of the period T may be matched with the transmission period of the resource interaction message between the target base station and the source base station, if the two are set to be the same; in a statistical period (namely a statistical time period of the period), the target base station makes statistics on the scheduling condition of each cell under the jurisdiction: for the scheduled data packet, determining the ARP attribute corresponding to the data packet and the number of PRBs used by the ARP, and adding the determination result to the number of PRBs used by the ARP.

It should be noted that, when different ARP data of the same UE are multiplexed and scheduled together, the target base station needs to determine the number of PRBs used by each ARP according to the size ratio of the data packet corresponding to each ARP. For example, at a certain time, when a 200bit packet with a first type ARP attribute and a 300bit packet with a second type ARP attribute are scheduled, and the network allocates 8 PRBs to the UE, it is counted that the packet with the first type ARP attribute occupies 3.2 PRBs; and 4.8 PRBs are occupied by the data packet with the second type of ARP attribute.

For example, the ARP attribute is the number of PRBs used by a data stream that has the capability of preempting other services and cannot be preempted by other services; the ARP attribute is the number of PRBs used by a data stream which has the capacity of seizing other services and can be seized by other services; the ARP attribute is the number of PRBs used by a data stream which does not have the capacity of seizing other services and cannot be seized by other services; the ARP attribute is the number of PRBs used by a data stream that does not have the capability of preempting other services and that can be preempted by other services.

Step 302, the target base station calculates the percentage of the number of the PRBs used by each ARP to the total available number of PRBs in the statistical time period according to the statistical result.

Specifically, when the statistical time period ends (i.e., when the statistical period ends), the target base station obtains the average number of air interface resources occupied by each ARP (i.e., the usage of the air interface resources) by dividing the number of PRBs used by each ARP by the total number of available PRBs in the current cell in the statistical time period.

Step 303, the target base station generates cell radio load information including the usage of the air interface resource (i.e. the percentage of the number of PRBs used by each ARP to the total number of available PRBs in the statistical time period), and sends the cell radio load information including the usage of the air interface resource to the source base station.

The target base station can multiplex the existing Resource status update message to send the cell wireless load information containing the air interface Resource use condition to the source base station; or, defining a new signaling and sending the cell wireless load information containing the air interface resource use condition to the source base station.

In step 304, the source base station receives the cell wireless load information from the target base station, and performs mobile load balancing using the cell wireless load information. Wherein, the cell radio load information at least includes the air interface resource usage corresponding to the cell.

Specifically, after the load of a Cell under jurisdiction (such as Cell x) of a source base station exceeds a specified threshold, a plurality of candidate cells having an adjacent relation with the Cell under jurisdiction (Cell x) are determined; then, the source base station determines Cell wireless load information corresponding to each candidate Cell (namely, a Cell having an adjacent relation with the Cell x) and load conditions corresponding to each candidate Cell (when the Cell wireless load information includes the load conditions corresponding to each candidate Cell, the Cell wireless load information can be directly determined by using the content carried in the Cell wireless load information; otherwise, the load conditions corresponding to each candidate Cell can be calculated by using the air interface resource use conditions corresponding to each candidate Cell) according to the received Cell wireless load information from each target base station; if a candidate cell with the lightest load (which should be lighter than the load of the cell under jurisdiction) exists, selecting the candidate cell with the lightest load as a target cell; if the candidate cell with the lightest load is a plurality of candidate cells with similar loads, and the load condition of each candidate cell is smaller than a certain threshold (such as 60%), the candidate cell with the ARP attribute as the target cell which can be preempted and occupies more air interface resources is preferentially selected.

If the candidate cell with the lightest load is a plurality of candidate cells with similar loads, and the load condition of each candidate cell is greater than a certain threshold (such as 80%), preferentially selecting the candidate cell with the ARP attribute as the target cell, wherein the candidate cell occupies more air interface resources for the preempted service; or, determining that there is no suitable neighbor cell for shunting the load, and releasing the low QoS service (ARP attribute is occupied by the preemptible service) in the heavy load cell (i.e., the subordinate cell) to be shunted to ensure the quality of service of the high QoS service (ARP attribute is occupied by the non-preemptible service).

In the embodiment of the invention, if the source base station corresponds to more services with the ability of triggering preemption and needs to perform mobile load balancing, the source base station can select the candidate cell with more resources occupied by the preempted services as the target cell for mobile load balancing. For example: when Cell x is overloaded and a source base station needs to distribute a service with preemption capability to a target Cell, the source base station compares the number of PRBs occupied by the preemptible service respectively corresponding to a candidate Cell m and a candidate Cell n, and if the number of PRBs occupied by the preemptible service corresponding to Cell m is found to be larger than the number of PRBs occupied by the preemptible service corresponding to Cell n, Cell m is selected as the target Cell for executing mobile load balancing.

Example four

In the embodiment of the present invention, a QoS requirement is taken as an ARP and QCI combination as an example for description, that is, a target base station needs to perform classified statistics on the number of PRBs occupied by various ARP and QCI combination data according to different ARP and QCI combinations of data streams.

As shown in fig. 4, the mobile load balancing method may include the steps of:

step 401, in the statistical time period, when the target base station performs resource scheduling, according to the combination of the ARP attribute and the QCI attribute corresponding to each data stream, performing a classified statistics on the number of PRBs used by the combination of the ARP attribute and the QCI attribute in the uplink and downlink.

Specifically, the target base station sets a statistical repetition period as T, and the setting of the period T may be matched with the transmission period of the resource interaction message between the target base station and the source base station, if the two are set to be the same; in a statistical period (namely a statistical time period of the period), the target base station makes statistics on the scheduling condition of each cell under the jurisdiction: and for the scheduled data packet, determining the combination of the ARP attribute and the QCI attribute corresponding to the data packet and the number of PRBs used by the combination of the ARP attribute and the QCI attribute, and accumulating the determination result to the number of PRBs used by the combination of the ARP attribute and the QCI attribute.

It should be noted that, when data of different ARP attributes and QCI attributes of the same UE are multiplexed together for scheduling, the target base station needs to determine the number of PRBs used by each combination of ARP and QCI according to the size ratio of the data packet corresponding to each combination of ARP and QCI. For example, at a certain time, a packet 200bit with a first ARP attribute of QCI =1 and a packet 300bit with a second ARP attribute of QCI =2 are scheduled, and the network allocates 8 PRBs to the UE, so that the packet with the first ARP attribute of QCI =1 occupies 3.2 PRBs; and 4.8 PRBs are occupied by the packets with the second type ARP attribute of QCI = 2.

In the embodiment of the present invention, the number of PRBs used by each ARP and QCI combination counted by the target base station specifically includes, but is not limited to: for each data flow of QCI, the ARP is the priority of the data flow, the ability of preempting other services and the number of PRBs used by the data flow which can be preempted by other services or not are counted. For example, ARP is the number of PRBs used by a data stream that has the capability of preempting other services and cannot be preempted by other services; ARP is the number of PRBs used by the data stream which has the capability of seizing other services and can be seized by other services; ARP is the number of PRBs used by a data stream which does not have the capacity of seizing other services and cannot be seized by other services; ARP is the number of PRBs used by a data stream that does not have the ability to preempt other traffic and that can be preempted by other traffic.

Step 402, the target base station calculates the percentage of the number of PRBs used by each combination of the ARP attribute and the QCI attribute in the total available number of PRBs in the statistical time period according to the statistical result.

Specifically, when the counting time period is over (i.e., when the counting period is over), the target base station needs to divide the number of PRBs used by the combination of the ARP attribute and the QCI attribute by the total number of available PRBs in the cell in the counting time period to obtain the average number of air interface resources occupied by the combination of the ARP attribute and the QCI attribute (i.e., the usage of the air interface resources).

In step 403, the target base station generates cell radio load information including the usage of the air interface resource (i.e. the percentage of the number of PRBs used by each combination of ARP and QCI to the total number of available PRBs in the statistical time period), and sends the cell radio load information including the usage of the air interface resource to the source base station.

In step 404, the source base station receives the cell radio load information from the target base station, and performs mobility load balancing using the cell radio load information. Wherein, the cell radio load information at least includes the air interface resource usage corresponding to the cell.

Specifically, after the load of a Cell under jurisdiction (such as Cell x) of a source base station exceeds a specified threshold, a plurality of candidate cells having an adjacent relation with the Cell under jurisdiction (Cell x) are determined; then, the source base station determines Cell wireless load information corresponding to each candidate Cell (namely, a Cell having an adjacent relation with the Cell x) and load conditions corresponding to each candidate Cell (when the Cell wireless load information includes the load conditions corresponding to each candidate Cell, the Cell wireless load information can be directly determined by using the content carried in the Cell wireless load information; otherwise, the load conditions corresponding to each candidate Cell can be calculated by using the air interface resource use conditions corresponding to each candidate Cell) according to the received Cell wireless load information from each target base station; if a candidate cell with the lightest load (which should be lighter than the load of the cell under jurisdiction) exists, selecting the candidate cell with the lightest load as a target cell; if the candidate cell with the lightest load is a plurality of candidate cells with similar loads, and the load condition of each candidate cell is smaller than a certain threshold (such as 60%), the candidate cell with the QCI priority lower than the QCI priority of the service which is expected to be distributed (namely the QCI level of the service to be distributed) and the ARP attribute is the candidate cell which occupies more air interface resources for the preempted service and is used as the target cell is preferentially selected.

If the candidate cell with the lightest load is a plurality of candidate cells with similar loads, and the load condition of each candidate cell is larger than a certain threshold (such as 80%), preferentially selecting the candidate cell with the QCI priority lower than the QCI priority of the service which is expected to be distributed (namely the QCI grade of the service to be distributed), and the ARP attribute is that the candidate cell which occupies more air interface resources for the preempted service is taken as the target cell; or, it is determined that there is no suitable neighbor cell for offloading the load, and the low QoS service (low QCI level, ARP attribute is occupied by the preemptible service) in the heavy load cell (i.e. the above subordinate cell) to be offloaded is released to ensure the quality of service of the high QoS service (high QCI level, ARP attribute is not occupied by the preemptible service).

In the embodiment of the present invention, when the source base station selects the target cell with balanced mobile load, if the number of PRBs used by each QCI data in the two candidate cells is similar, the number of PRBs used by different ARP data under the same QCI may be further compared, so as to select a more suitable candidate cell as the target cell with balanced mobile load. For example: when Cell x is overloaded and a source base station needs to shunt a service with QCI = a to a target Cell, if the number of PRBs used by QCI data in candidate Cell m and candidate Cell n is similar, the source base station compares the number of PRBs occupied by a preemptible service with QCI lower than a corresponding to candidate Cell m and candidate Cell n, and if the number of PRBs occupied by a preemptible service with QCI lower than a corresponding to Cell m is found to be larger than the number of PRBs occupied by a preemptible service with QCI lower than a corresponding to Cell n, Cell m is selected as the target Cell for performing mobile load balancing.

EXAMPLE five

In order to perform resource interaction, the source base station may further configure a statistical manner of the target base station, and notify the statistical manner of the target base station to the target base station through the report type configuration message, so that the target base station can determine what statistical manner the air interface resource usage needs to be classified and counted.

The statistical method of the target base station specifically indicates the target base station to count the air interface resource use condition of the QCI, or count the air interface resource use condition of the ARP, or count the air interface resource use condition of the combination of the ARP and the QCI; for example, the source base station uses an enumeration type to notify the number of the statistical mode to the target base station through a report type configuration message; when the report type configuration message carries the number 1, indicating the target base station to count the air interface resource use condition of the QCI; when the report type configuration message carries the number 2, indicating the target base station to count the air interface resource use condition of the ARP; and when the report type configuration message carries the number 3, indicating the target base station to count the air interface resource use condition of the combination of the ARP and the QCI.

In the embodiment of the invention, after the target base station receives the report type configuration message, if the target base station supports the statistical mode of the source base station configuration, a report configuration success response is returned to the source base station; otherwise, a report configuration failure response is returned to the source base station, and the report configuration failure response can carry the failure reason indication.

EXAMPLE six

For the process that the target base station sends the cell wireless load information to the source base station, the target base station can send the cell wireless load information containing the air interface resource use condition to the source base station through the cell load reporting message. In the cell load report message, the target base station takes the numbers of QCI and ARP as the sequence numbers, for example:

(1) numbered QCI: number 1: occupies PRB10% (corresponding to QCI = 1); number 2: occupied PRB20% (corresponding to QCI = 2); number 3: occupies PRB0% (corresponding to QCI = 3).

(2) Number ARP: number 1: occupies 10% of PRB (corresponding to ARP: priority 0, can trigger preemption, can be preempted); number 2: 20% of occupied PRB (corresponding ARP: priority 0, not triggerable to preempt; preemptable); number 3: occupies 0% of PRB (corresponding ARP: priority 1, not triggerable to preempt; preemptable); by analogy, the introduction of the subsequent numbering is not described again.

It should be noted that the report number information of the statistics (i.e. the numbers of the QCI and the ARP) may be configured in the report type configuration message, or may be configured by the OAM, which is not described herein again.

EXAMPLE seven

Based on the same inventive concept as the above method, an embodiment of the present invention further provides a base station apparatus, as shown in fig. 5, where the base station apparatus includes:

a statistic module 11, configured to perform classified statistics on the usage of air interface resources according to quality of service QoS requirements corresponding to data streams;

a generating module 12, configured to generate cell radio load information including the usage of the air interface resource;

a sending module 13, configured to send the cell radio load information to a source base station; performing, by the source base station, mobility load balancing using the cell radio load information.

In this embodiment of the present invention, the QoS requirements corresponding to the data stream include: the QoS classification indicates QCI, and/or preempts/maintains priority ARP; the QCI is used for indicating the scheduling priority of the data stream, the comprehensive attributes of a delay index and a packet loss/error rate index; ARP is used to indicate the priority of a data flow, the ability to preempt other services, and the attributes of whether it can be preempted by other services.

The counting module 11 is specifically configured to, when the QoS requirement corresponding to the data stream is a QCI, count, in a counting time period, the number of PRBs of the physical resource block used by each QCI by using the QCI corresponding to each data stream in a classified manner, and calculate, according to a statistical result, the percentage of the number of PRBs used by each QCI in the total available number of PRBs in the counting time period; or when the QoS requirement corresponding to the data stream is specifically ARP, in a statistical time period, utilizing the ARP corresponding to each data stream to perform classified statistics on the number of PRBs used by each ARP, and calculating the percentage of the number of PRBs used by each ARP in the total available PRBs in the statistical time period according to a statistical result; or when the QoS requirement corresponding to the data stream is specifically a combination of the QCI and the ARP, in a statistical time period, performing classification statistics on the number of PRBs used by the combination of the ARP and the QCI corresponding to each data stream by using the combination of the ARP and the QCI; and calculating the percentage of the PRB number used by each ARP and QCI combination to the total available PRB number in the statistical time period according to the statistical result.

The statistic module 11 is further configured to, when the QoS requirement corresponding to the data flow is specifically a QCI, determine, in a statistic time period, a QCI corresponding to a scheduled data flow and the number of PRBs used by the QCI, and add the determination result to the number of PRBs used by the QCI; when different QCI data of the same user equipment are multiplexed and scheduled together, determining the number of PRBs (physical resource blocks) used by each QCI according to the size proportion of a data packet corresponding to each QCI; when the counting time period is over, dividing the number of PRBs used by each QCI by the total number of available PRBs in the counting time period to obtain the average number of air interface resources occupied by each QCI; or when the QoS requirement corresponding to the data stream is specifically ARP, determining the ARP corresponding to the scheduled data stream and the number of PRBs used by the ARP within a statistical time period, and adding the determination result to the number of PRBs used by the ARP; when different ARP data of the same user equipment are multiplexed and scheduled together, determining the number of PRBs (physical resource blocks) used by each ARP (address resolution protocol) according to the size proportion of a data packet corresponding to each ARP; when the statistical time period is over, dividing the number of PRBs used by each ARP by the total number of available PRBs in the statistical time period to obtain the average number of air interface resources occupied by each ARP; or when the QoS requirement corresponding to the data flow is specifically a combination of the QCI and the ARP, determining, within a statistical time period, a combination of the ARP and the QCI corresponding to the scheduled data flow and the number of PRBs used by the combination of the ARP and the QCI, and adding a determination result to the number of PRBs used by the combination of the ARP and the QCI; when data of different ARP and QCI combinations of the same user equipment are multiplexed and scheduled together, determining the number of PRBs (physical resource blocks) used by each ARP and QCI combination according to the size proportion of a data packet corresponding to each ARP and QCI combination; and when the counting time period is ended, dividing the number of PRBs used by the combination of each ARP and QCI by the total number of available PRBs in the counting time period to obtain the average number of the air interface resources occupied by the combination of each ARP and QCI.

The number of PRBs used by each ARP counted by the counting module 11 is specifically: the ARP is the priority of the data flow, the capability of preempting other services and the number of PRBs used by the data flow which can be preempted by other services or not.

The statistics module 11 is specifically configured to receive a report type configuration message from the source base station, where the report type configuration message carries a statistics manner of the base station, and perform statistics on an air interface resource usage according to the statistics manner; the statistical method specifically indicates that the base station counts the usage of the air interface resource of the QCI, or counts the usage of the air interface resource of the ARP, or counts the usage of the air interface resource of the combination of the ARP and the QCI.

The modules of the device can be integrated into a whole or can be separately deployed. The modules can be combined into one module, and can also be further split into a plurality of sub-modules.

Example eight

Based on the same inventive concept as the above method, an embodiment of the present invention further provides a base station apparatus, as shown in fig. 6, where the base station apparatus includes:

a receiving module 21, configured to receive cell wireless load information from a target base station, where the cell wireless load information includes air interface resource usage conditions classified and counted according to quality of service QoS requirements corresponding to data streams;

a processing module 22, configured to perform mobility load balancing by using the cell radio load information.

In the embodiment of the present invention, the QoS requirements corresponding to the data stream include: the QoS classification indicates QCI, and/or preempts/maintains priority ARP; the QCI is used for indicating the scheduling priority of the data stream, the comprehensive attributes of a delay index and a packet loss/error rate index; ARP is used to indicate the priority of a data flow, the ability to preempt other services, and the attributes of whether it can be preempted by other services.

The processing module 22 is specifically configured to determine, after determining that a load of a cell under the jurisdiction of the base station exceeds a specified threshold, a plurality of candidate cells having an adjacent relationship with the cell under the jurisdiction; determining cell wireless load information corresponding to each candidate cell, and determining load conditions corresponding to each candidate cell; when the load condition corresponding to each candidate cell meets a first load type, selecting the candidate cell with the lightest load as a target cell by using the load condition corresponding to each candidate cell, and executing mobile load balance between the subordinate cell and the target cell; and/or when the load condition corresponding to each candidate cell meets a second load type, selecting a target cell from each candidate cell by using the air interface resource use condition based on QoS corresponding to each candidate cell, and performing mobile load balancing between the subordinate cell and the target cell; and/or when the load condition corresponding to each candidate cell meets the third load type, selecting a target cell from each candidate cell by using the air interface resource use condition based on QoS corresponding to each candidate cell, and performing mobile load balancing between the subordinate cell and the target cell.

The processing module 22 is specifically configured to determine the usage condition of the air interface resources of the service with a low QCI level in each candidate cell when the usage condition of the air interface resources based on the QoS is that the service with the low QCI level occupies the air interface resources, and preferentially select the candidate cell with the low QCI level and occupying more air interface resources as the target cell; or when the air interface resource usage based on QoS is that each ARP attribute service occupies air interface resources, determining that the ARP attribute in each candidate cell is the air interface resource usage of the service capable of being preempted by other services, and preferentially selecting the candidate cell with the ARP attribute being that the service capable of being preempted by other services occupies more air interface resources as a target cell; or when the air interface resource usage based on the QoS is the air interface resource usage occupied by each ARP attribute service under each QCI level, determining that the QCI level in each candidate cell is lower than the QCI level of the service to be distributed, the ARP attribute is the air interface resource usage of the service that can be occupied by other services, preferentially selecting the QCI level that is lower than the QCI level of the service to be distributed, and the ARP attribute is the candidate cell that can be occupied by the service that can be occupied by other services and occupies a large amount of air interface resources as the target cell.

The processing module 22 is specifically configured to determine the usage of air interface resources of services with low QCI levels in each candidate cell when the number of services with high QCI levels in the subordinate cell is greater than a preset first value, and preferentially select a candidate cell with high air interface resources occupied by services with low QCI levels as a target cell; or, when the ARP attribute in the subordinate cell is that the number of services with the capacity of preempting other services is larger than a preset second value, determining the air interface resource use condition of the service with the ARP attribute capable of being preempted by other services in each candidate cell, and preferentially selecting the candidate cell with the ARP attribute capable of being preempted by other services and occupying more air interface resources as the target cell.

The processing module 22 is specifically configured to perform mobility parameter negotiation with a target base station corresponding to the target cell, and if the parameter negotiation is successful, adjust a mobility parameter so that the user equipment can switch from the subordinate cell or reselect to the target cell; wherein the mobility parameters include: switching a signal threshold, reselecting the signal threshold, wherein the signals received by the user equipment from the serving cell and the target cell meet a time threshold corresponding to the signal threshold.

The base station apparatus further includes:

a determining module 23, configured to determine a statistical manner of the target base station, where the statistical manner specifically indicates that the target base station counts the usage of the air interface resource of the QCI, or counts the usage of the air interface resource of the ARP, or counts the usage of the air interface resource of a combination of the ARP and the QCI;

a sending module 24, configured to notify the target base station of the statistical manner of the target base station through the report type configuration message, and perform statistics on the usage of the air interface resource by the target base station according to the statistical manner.

Example nine

Based on the same inventive concept as the above method, an embodiment of the present invention further provides a base station device, where the base station device includes: the statistical module is used for carrying out classified statistics on the service condition of the air interface resources by utilizing the service quality QoS requirement corresponding to the data stream; the QoS requirements corresponding to the data flows include: the QoS classification indicates QCI, and/or preempts/maintains priority ARP; the QCI is used for indicating the scheduling priority of the data stream, the comprehensive attributes of a delay index and a packet loss/error rate index; ARP is used to indicate the priority of a data flow, the ability to preempt other services, and the attributes of whether it can be preempted by other services.

The counting module is specifically configured to, when the QoS requirement corresponding to the data stream is a QCI, count, within a counting time period, the number of PRBs of the physical resource block used by each QCI by using the QCI corresponding to each data stream in a classified manner, and calculate, according to a statistical result, the percentage of the number of PRBs used by each QCI in the total available number of PRBs within the counting time period; or when the QoS requirement corresponding to the data stream is specifically ARP, in a statistical time period, utilizing the ARP corresponding to each data stream to perform classified statistics on the number of PRBs used by each ARP, and calculating the percentage of the number of PRBs used by each ARP in the total available PRBs in the statistical time period according to a statistical result; or, when the QoS requirement corresponding to the data stream is specifically a combination of the QCI and the ARP, in a statistical time period, the number of PRBs used by the combination of the ARP and the QCI corresponding to each data stream is counted by using the ARP and QCI combination classification, and the percentage of the number of PRBs used by the ARP and QCI combination to the total available number of PRBs in the statistical time period is calculated according to the statistical result.

The statistic module is further configured to, when the QoS requirement corresponding to the data flow is specifically a QCI, determine, within a statistic time period, a QCI corresponding to a scheduled data flow and the number of PRBs used by the QCI, and accumulate a determination result to the number of PRBs used by the QCI; when different QCI data of the same user equipment are multiplexed and scheduled together, determining the number of PRBs (physical resource blocks) used by each QCI according to the size proportion of a data packet corresponding to each QCI; when the counting time period is over, dividing the number of PRBs used by each QCI by the total number of available PRBs in the counting time period to obtain the average number of air interface resources occupied by each QCI; or when the QoS requirement corresponding to the data stream is specifically ARP, determining the ARP corresponding to the scheduled data stream and the number of PRBs used by the ARP within a statistical time period, and adding the determination result to the number of PRBs used by the ARP; when different ARP data of the same user equipment are multiplexed and scheduled together, determining the number of PRBs used by each ARP according to the size proportion of a data packet corresponding to each ARP; when the statistical time period is over, dividing the number of PRBs used by each ARP by the total number of available PRBs in the statistical time period to obtain the average number of air interface resources occupied by each ARP; or when the QoS requirement corresponding to the data flow is specifically a combination of the QCI and the ARP, determining, within a statistical time period, a combination of the ARP and the QCI corresponding to the scheduled data flow and the number of PRBs used by the combination of the ARP and the QCI, and adding a determination result to the number of PRBs used by the combination of the ARP and the QCI; when data of different ARP and QCI combinations of the same user equipment are multiplexed and scheduled together, determining the number of PRBs (physical resource blocks) used by each ARP and QCI combination according to the size proportion of a data packet corresponding to each ARP and QCI combination; and when the counting time period is ended, dividing the number of PRBs used by the combination of each ARP and QCI by the total number of available PRBs in the counting time period to obtain the average number of the air interface resources occupied by the combination of each ARP and QCI.

Through the above description of the embodiments, those skilled in the art will clearly understand that the present invention may be implemented by software plus a necessary general hardware platform, and certainly may also be implemented by hardware, but in many cases, the former is a better embodiment. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute the methods according to the embodiments of the present invention.

Those skilled in the art will appreciate that the drawings are merely schematic representations of one preferred embodiment and that the blocks or flow diagrams in the drawings are not necessarily required to practice the present invention.

Those skilled in the art will appreciate that the modules in the devices in the embodiments may be distributed in the devices in the embodiments according to the description of the embodiments, and may be correspondingly changed in one or more devices different from the embodiments. The modules of the above embodiments may be combined into one module, or further split into multiple sub-modules.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

The above disclosure is only for a few specific embodiments of the present invention, but the present invention is not limited thereto, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.

Claims

1. A mobile load balancing method, comprising:

the target base station sends the cell wireless load information to a source base station; performing, by the source base station, mobility load balancing using the cell radio load information;

wherein, the QoS requirement corresponding to the data flow includes: the QoS classification indicates QCI, and/or preempts/maintains priority ARP; the QCI is used for indicating the scheduling priority of the data stream, the comprehensive attributes of a delay index and a packet loss/error rate index; ARP is used for indicating the priority of data flow, the ability of seizing other services and the attribute whether the data flow can be seized by other services;

the process of performing mobile load balancing by the source base station using the cell radio load information specifically includes:

after determining that the load of a cell under the jurisdiction of the base station exceeds a specified threshold, the source base station determines a plurality of candidate cells which have an adjacent relation with the cell under the jurisdiction;

the source base station determines cell wireless load information corresponding to each candidate cell and determines load conditions corresponding to each candidate cell;

when the load condition corresponding to each candidate cell meets a second load type, the source base station selects a target cell from each candidate cell by using the air interface resource use condition based on QoS corresponding to each candidate cell, and performs mobile load balancing between the subordinate cell and the target cell; and/or the presence of a gas in the gas,

when the load condition corresponding to each candidate cell meets a third load type, the source base station selects a target cell from each candidate cell by using the air interface resource use condition based on QoS corresponding to each candidate cell, and performs mobile load balancing between the subordinate cell and the target cell;

the source base station selects a target cell from each candidate cell by using the air interface resource use condition based on QoS corresponding to each candidate cell, and the method comprises the following steps:

when the air interface resource use condition based on the QoS is the condition that each QCI grade service occupies the air interface resource, the source base station determines the air interface resource use condition of the service with low QCI grade in each candidate cell and preferentially selects the candidate cell with low QCI grade service occupying more air interface resources as a target cell; or,

when the air interface resource usage based on QoS is the situation that each ARP attribute service occupies air interface resources, the source base station determines the air interface resource usage of the service which can be preempted by other services and in each candidate cell, and preferentially selects the candidate cell which has the ARP attribute that the service which can be preempted by other services occupies more air interface resources as a target cell; or,

and when the air interface resource use condition based on the QoS is the condition that each ARP attribute service occupies the air interface resource under each QCI level, the source base station determines that the QCI level in each candidate cell is lower than the QCI level of the service to be distributed, the ARP attribute is the air interface resource use condition of the service capable of being preempted by other services, preferentially selects the candidate cell with the QCI level lower than the QCI level of the service to be distributed, and the ARP attribute is the candidate cell which occupies more air interface resources by the service capable of being preempted by other services and is the target cell.

2. The method of claim 1, wherein when the QoS requirement corresponding to the data flow is specifically QCI, the classifying and counting the usage of air interface resources by the target base station according to the QoS requirement corresponding to the data flow includes:

and the target base station classifies and counts the number of PRBs (physical resource blocks) used by each QCI by using the QCI corresponding to each data stream in a counting time period, and calculates the percentage of the number of PRBs used by each QCI in the total available PRBs in the counting time period according to a counting result.

3. The method of claim 2, wherein the target base station classifies and counts usage of air interface resources according to quality of service (QoS) requirements corresponding to data streams, and further comprising:

the target base station determines a QCI corresponding to the scheduled data stream and the number of PRBs used by the QCI in a statistical time period, and accumulates the determination result to the number of PRBs used by the QCI; when different QCI data of the same user equipment are multiplexed and scheduled together, the target base station determines the number of PRBs used by each QCI according to the size proportion of a data packet corresponding to each QCI;

and when the counting time period is over, the target base station divides the number of PRBs used by each QCI by the total number of available PRBs in the counting time period to obtain the average number of the air interface resources occupied by each QCI.

4. The method of claim 1, wherein when the QoS requirement corresponding to the data flow is specifically ARP, the classifying and counting the usage of air interface resources by the target base station according to the QoS requirement corresponding to the data flow includes:

and the target base station utilizes the ARP corresponding to each data stream to classify and count the number of PRBs used by each ARP in a statistical time period, and calculates the percentage of the number of PRBs used by each ARP in the total available PRBs in the statistical time period according to the statistical result.

5. The method of claim 4, wherein the target base station classifies and counts the usage of air interface resources according to quality of service (QoS) requirements corresponding to data streams, and further comprising:

the target base station determines the ARP corresponding to the scheduled data stream and the number of PRBs used by the ARP within a statistical time period, and adds the determination result to the number of PRBs used by the ARP; when different ARP data of the same user equipment are multiplexed and scheduled together, the target base station determines the number of PRBs used by each ARP according to the size proportion of a data packet corresponding to each ARP;

and when the counting time period is over, the target base station divides the total available PRB number in the counting time period by the PRB number used by each ARP to obtain the average number of the air interface resources occupied by each ARP.

6. The method of claim 1, wherein when the QoS requirement corresponding to the data flow is specifically a combination of QCI and ARP, the classifying and counting the usage of air interface resources by the target base station according to the QoS requirement corresponding to the data flow comprises:

the target base station classifies and counts the number of PRBs used by each ARP and QCI combination by using the ARP and QCI combination corresponding to each data stream in a statistical time period;

and the target base station calculates the percentage of the PRB number used by each ARP and QCI combination to the total available PRB number in the statistical time period according to the statistical result.

7. The method of claim 6, wherein the target base station classifies and counts air interface resource usage by using quality of service (QoS) requirements corresponding to data streams, further comprising:

the target base station determines the combination of ARP and QCI corresponding to the scheduled data stream and the number of PRBs used by the combination of ARP and QCI in a statistical time period, and adds the determination result to the number of PRBs used by the combination of ARP and QCI; when data of different ARP and QCI combinations of the same user equipment are multiplexed and scheduled together, the target base station determines the number of PRBs used by each ARP and QCI combination according to the size proportion of data packets corresponding to each ARP and QCI combination;

and when the counting time period is over, the target base station divides the total available PRB number in the counting time period by the PRB number used by the combination of each ARP and QCI to obtain the average number of the air interface resources occupied by the combination of each ARP and QCI.

8. The method according to claim 4 or 6, wherein the counting of the number of PRBs used by each ARP by the target base station specifically includes:

the ARP is the priority of the data flow, the capability of preempting other services and the number of PRBs used by the data flow which can be preempted by other services or not.

9. The method of claim 1, wherein before the target base station classifies and counts the usage of air interface resources according to the QoS requirements corresponding to the data streams, the method further comprises:

the target base station receives a report type configuration message from the source base station, the report type configuration message carries a statistical mode of the target base station, and the target base station carries out statistics on the use condition of the air interface resources according to the statistical mode; the statistical method specifically indicates that the target base station counts the usage of the air interface resource of the QCI, or counts the usage of the air interface resource of the ARP, or counts the usage of the air interface resource of a combination of the ARP and the QCI.

10. A mobile load balancing method, comprising:

the source base station performs mobile load balancing by using the cell wireless load information;

11. The method of claim 10, wherein the selecting, by the source base station, the target cell from the candidate cells using the QoS-based air interface resource usage corresponding to the candidate cells comprises:

when the number of the services with high QCI levels in the cell under the jurisdiction is larger than a preset first numerical value, the source base station determines the air interface resource use condition of the services with low QCI levels in each candidate cell, and preferentially selects the candidate cell with low QCI levels occupying more air interface resources as a target cell; or,

and when the ARP attribute in the subordinate cell is that the number of services with the capacity of preempting other services is larger than a preset second value, the source base station determines the air interface resource use condition of the services with the ARP attribute capable of being preempted by other services in each candidate cell, and preferentially selects the candidate cell with the ARP attribute capable of being preempted by other services and occupying more air interface resources as the target cell.

12. The method of claim 10, wherein said source base station performs mobility load balancing between said jurisdictional cell and said target cell, specifically comprising:

the source base station and a target base station corresponding to the target cell carry out mobility parameter negotiation, and if the parameter negotiation is successful, the source base station adjusts mobility parameters so that user equipment can be switched or reselected from the cell under jurisdiction to the target cell; wherein the mobility parameters include: switching a signal threshold, reselecting the signal threshold, wherein the signals received by the user equipment from the serving cell and the target cell meet a time threshold corresponding to the signal threshold.

13. The method of claim 10, wherein prior to the source base station receiving cell radio load information from a target base station, the method further comprises:

the source base station determines a statistical mode of a target base station, wherein the statistical mode is specifically to instruct the target base station to count the air interface resource use condition of QCI, or count the air interface resource use condition of ARP, or count the air interface resource use condition of a combination of ARP and QCI;

and the source base station informs the target base station of the statistical mode of the target base station through a report type configuration message, and the target base station carries out the statistics of the air interface resource use condition according to the statistical mode.

14. A base station apparatus, comprising:

a sending module, configured to send the cell radio load information to a source base station; performing, by the source base station, mobility load balancing using the cell radio load information;

15. The base station apparatus of claim 14,

the counting module is specifically configured to, when the QoS requirement corresponding to the data stream is a QCI, count, within a counting time period, the number of PRBs of the physical resource block used by each QCI by using the QCI corresponding to each data stream in a classified manner, and calculate, according to a statistical result, the percentage of the number of PRBs used by each QCI in the total available number of PRBs within the counting time period; or,

when the QoS requirement corresponding to the data stream is specifically ARP, in a statistical time period, utilizing the ARP corresponding to each data stream to perform classified statistics on the number of PRBs used by each ARP, and calculating the percentage of the number of PRBs used by each ARP in the total available PRBs in the statistical time period according to a statistical result; or,

when the QoS requirement corresponding to the data flow is specifically the combination of QCI and ARP, in a statistical time period, the PRB number used by the combination of ARP and QCI corresponding to each data flow is classified and counted by the combination of ARP and QCI; and calculating the percentage of the PRB number used by each ARP and QCI combination to the total available PRB number in the statistical time period according to the statistical result.

16. The base station apparatus of claim 15,

the statistic module is further configured to, when the QoS requirement corresponding to the data flow is specifically a QCI, determine, within a statistic time period, a QCI corresponding to a scheduled data flow and the number of PRBs used by the QCI, and accumulate a determination result to the number of PRBs used by the QCI; when different QCI data of the same user equipment are multiplexed and scheduled together, determining the number of PRBs (physical resource blocks) used by each QCI according to the size proportion of a data packet corresponding to each QCI; when the counting time period is over, dividing the number of PRBs used by each QCI by the total number of available PRBs in the counting time period to obtain the average number of air interface resources occupied by each QCI; or,

when the QoS requirement corresponding to the data stream is specifically ARP, determining the ARP corresponding to the scheduled data stream and the number of PRBs used by the ARP within a statistical time period, and accumulating the determination result to the number of PRBs used by the ARP; when different ARP data of the same user equipment are multiplexed and scheduled together, determining the number of PRBs (physical resource blocks) used by each ARP (address resolution protocol) according to the size proportion of a data packet corresponding to each ARP; when the statistical time period is over, dividing the number of PRBs used by each ARP by the total number of available PRBs in the statistical time period to obtain the average number of air interface resources occupied by each ARP; or,

when the QoS requirement corresponding to the data stream is specifically a combination of QCI and ARP, determining the combination of ARP and QCI corresponding to the scheduled data stream and the number of PRBs used by the combination of ARP and QCI in a statistical time period, and accumulating the determination result to the number of PRBs used by the combination of ARP and QCI; when data of different ARP and QCI combinations of the same user equipment are multiplexed and scheduled together, determining the number of PRBs (physical resource blocks) used by each ARP and QCI combination according to the size proportion of a data packet corresponding to each ARP and QCI combination; and when the counting time period is ended, dividing the number of PRBs used by the combination of each ARP and QCI by the total number of available PRBs in the counting time period to obtain the average number of the air interface resources occupied by the combination of each ARP and QCI.

17. The base station device of claim 15, wherein the number of PRBs used by each ARP counted by the counting module is specifically: the ARP is the priority of the data flow, the capability of preempting other services and the number of PRBs used by the data flow which can be preempted by other services or not.

18. The base station apparatus of claim 14,

the statistics module is specifically configured to receive a report type configuration message from the source base station, where the report type configuration message carries a statistics manner of the base station, and perform statistics on an air interface resource usage according to the statistics manner; the statistical method specifically indicates that the base station counts the usage of the air interface resource of the QCI, or counts the usage of the air interface resource of the ARP, or counts the usage of the air interface resource of the combination of the ARP and the QCI.

19. A base station apparatus, comprising:

a processing module, configured to perform mobility load balancing using the cell radio load information;

the processing module is specifically configured to determine, after determining that a load of a subordinate cell of the base station exceeds a specified threshold, a plurality of candidate cells having an adjacent relationship with the subordinate cell;

determining cell wireless load information corresponding to each candidate cell, and determining load conditions corresponding to each candidate cell;

when the load condition corresponding to each candidate cell meets a second load type, selecting a target cell from each candidate cell by using the air interface resource use condition based on QoS corresponding to each candidate cell, and executing mobile load balancing between the subordinate cell and the target cell; and/or the presence of a gas in the gas,

when the load condition corresponding to each candidate cell meets a third load type, selecting a target cell from each candidate cell by using the air interface resource use condition based on QoS corresponding to each candidate cell, and executing mobile load balancing between the subordinate cell and the target cell;

the processing module is specifically configured to determine the usage of air interface resources of services with low QCI levels in each candidate cell when the usage of air interface resources based on QoS is a situation in which each QCI level service occupies air interface resources, and preferentially select a candidate cell with low QCI level service occupying a large amount of air interface resources as a target cell; or, when the air interface resource usage based on the QoS is the air interface resource usage of each ARP attribute service, determining that the ARP attribute in each candidate cell is the air interface resource usage of a service that can be preempted by other services, and preferentially selecting the candidate cell whose ARP attribute is that the service that can be preempted by other services occupies a large amount of air interface resources as a target cell; or when the air interface resource usage based on the QoS is the air interface resource usage occupied by each ARP attribute service under each QCI level, determining that the QCI level in each candidate cell is lower than the QCI level of the service to be distributed, the ARP attribute is the air interface resource usage of the service that can be occupied by other services, and preferentially selecting the candidate cell with the QCI level lower than the QCI level of the service to be distributed, and the ARP attribute is the candidate cell with more air interface resources occupied by the service that can be occupied by other services as the target cell.

20. The base station apparatus of claim 19,

the processing module is specifically configured to determine the use condition of air interface resources of the service with the low QCI level in each candidate cell when the number of the services with the high QCI level in the subordinate cell is greater than a preset first value, and preferentially select the candidate cell with the low QCI level occupying a large amount of air interface resources as the target cell; or,

and when the ARP attribute in the subordinate cell is that the number of services with the capacity of preempting other services is larger than a preset second value, determining the air interface resource use condition of the services with the ARP attribute capable of being preempted by other services in each candidate cell, and preferentially selecting the candidate cell with the ARP attribute capable of being preempted by other services and occupying more air interface resources as the target cell.

21. The base station apparatus of claim 19,

the processing module is specifically configured to perform mobility parameter negotiation with a target base station corresponding to the target cell, and if the parameter negotiation is successful, adjust a mobility parameter so that the user equipment can switch from the subordinate cell or reselect to the target cell; wherein the mobility parameters include: switching a signal threshold, reselecting the signal threshold, wherein the signals received by the user equipment from the serving cell and the target cell meet a time threshold corresponding to the signal threshold.

22. The base station apparatus of claim 19, further comprising:

a determining module, configured to determine a statistical manner of a target base station, where the statistical manner is to instruct the target base station to count a usage situation of an air interface resource of a QCI, or to count a usage situation of an air interface resource of an ARP, or to count a usage situation of an air interface resource of a combination of an ARP and a QCI;

and the sending module is used for informing the target base station of the statistical mode of the target base station through the report type configuration message, and the target base station carries out the statistics of the air interface resource use condition according to the statistical mode.