CN105612781A - Load balancing method, apparatus and communication system - Google Patents
Load balancing method, apparatus and communication system Download PDFInfo
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- CN105612781A CN105612781A CN201480055277.2A CN201480055277A CN105612781A CN 105612781 A CN105612781 A CN 105612781A CN 201480055277 A CN201480055277 A CN 201480055277A CN 105612781 A CN105612781 A CN 105612781A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/08—Load balancing or load distribution
- H04W28/086—Load balancing or load distribution among access entities
- H04W28/0861—Load balancing or load distribution among access entities between base stations
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Abstract
Embodiments of the present invention provide a load balancing method, an apparatus and a communication system. The method comprises: a first base station sending a request message to a second base station, and through the request message, requesting the second base station to provide information related to that the second base station or a cell of the second base station accepts a load of an operator indicated by the request message; and the first base station receiving an update message returned by the second base station, and based on the update message, obtaining the information related to that the second base station or the cell of the second base station accepts the load of the operator indicated by the request message. Through the method of the embodiments of the present invention, operator-level load balancing is implemented.
Description
Load-balancing method, device and art communication systems field
The present invention relates to the communications field, more particularly to a kind of load-balancing method, device and communication system.Background technology
Existing Long Term Evolution（LTE, Long Term Evolution) or enhanced Long Term Evolution（LTE-A, LTE-Advance) in system, the resource of a cell may be shared by multiple operators, and each operator can be allocated a certain proportion of local resource according to agreement.But, existing load-balancing mechanism is intended merely to realize the load balance of minizone, and the load for not accounting for each operator is also required to balance in minizone.
In currently existing scheme, the load state of its cell controlled can be interacted between adjacent base station, when inter-cell load level is unbalance, the load balancing of minizone can be carried out by the cell switching user from high capacity to the cell of low-load.But, when the resource of a cell is shared by multiple operators, existing base station can not share the ratio of local resource to realize the other load balancing of carrier-class according to each operator.
It should be noted that the introduction to technical background is intended merely to the convenient explanation clear, complete to technical scheme progress above, and facilitates the understanding of those skilled in the art and illustrate.Can not be merely because these schemes be set forth in the background section of the present invention and think that above-mentioned technical proposal is known to those skilled in the art.The content of the invention
The embodiment of the present invention provides a kind of load-balancing method, device and communication system, to realize the other load balancing of carrier-class.
First aspect according to embodiments of the present invention there is provided a kind of load-balancing method, wherein, methods described includes:First base station sends request message to the second base station, and the relevant information of the load of the operator of the cell receiving of second base station or second base station request message instruction is provided by the second base station described in the request message requests；
The first base station receives the new information that second base station is returned, and the relevant information of the load of the operator of the cell receiving of second base station or second base station request message instruction is obtained according to the new information.
Second aspect according to embodiments of the present invention there is provided a kind of load-balancing method, wherein, methods described includes:Second base station receives the request message that first base station is sent, and determines that the first base station please according to the request message
Second base station asked or the cell of second base station receive the relevant information of the load for the operator that the request message is indicated；
Second base station sends new information to the first base station, provides the relevant information of the load of the operator of the cell receiving of second base station or second base station request message instruction to the first base station by the new information.
The third aspect according to embodiments of the present invention is applied to first base station there is provided a kind of load balancing apparatus, described device, wherein, described device includes：
Transmitting element, it sends request message to the second base station, and the relevant information of its load for receiving the operator that the request message is indicated is provided by the second base station described in the request message requests；
First receiving unit, it receives the new information that second base station is returned, and the relevant information of the load of the operator of the cell receiving of second base station or second base station request message instruction is obtained according to the new information.
Fourth aspect according to embodiments of the present invention is applied to the second base station there is provided a kind of load balancing apparatus, described device, wherein, described device includes：
Receiving unit, it receives the request message that first base station is sent, and the relevant information of the load of the operator of the cell receiving request message instruction of second base station or second base station that the first base station is asked is determined according to the request message；
First transmitting element, it sends new information to the first base station, provides the relevant information of the load of the operator of the cell receiving of second base station or second base station request message instruction to the first base station by the new information.
There is provided a kind of base station in terms of according to embodiments of the present invention the 5th, wherein, the base station includes foregoing negative 6th aspect according to embodiments of the present invention there is provided a kind of communication system, and the communication system includes first base station and the second base station, wherein,
The first base station sends request message to second base station, and the relevant information of the load of the operator of the cell receiving of second base station or second base station request message instruction is provided by the second base station described in the request message requests；
Second base station receives the request message, and sends new information to the first base station, and the cell for providing second base station or second base station to the first base station by the new information receives the request message
The relevant information of the load of the operator of instruction.
Other side according to embodiments of the present invention is there is provided a kind of computer-readable program, wherein when performing described program in a base station, described program causes computer to perform foregoing load-balancing method in the base station.
Other side according to embodiments of the present invention is there is provided a kind of storage medium for the computer-readable program that is stored with, wherein the computer-readable program causes computer to perform foregoing load-balancing method in a base station.
The beneficial effect of the embodiment of the present invention is：By the method for the embodiment of the present invention, the other load balancing of carrier-class is realized.
With reference to explanation hereinafter and accompanying drawing, only certain exemplary embodiments of this invention is disclose in detail, the principle for specifying the present invention can be in adopted mode.It should be understood that embodiments of the present invention are not so limited in scope.In the range of the spirit and terms of appended claims, embodiments of the present invention include many changes, modifications and equivalent.
Described for a kind of embodiment and/or the feature that shows can be used in same or similar mode in one or more other embodiments, it is combined with feature in other embodiment, or substitute the feature in other embodiment.
It should be emphasized that term " include/include " refers to the presence of feature, one integral piece, step or component when being used herein, but it is not precluded from the presence or additional of one or more further features, one integral piece, step or component.Brief description of the drawings
Included accompanying drawing is used for providing and being further understood from the embodiment of the present invention, which constitutes a part for specification, for illustrating embodiments of the present invention, and the principle for the explaination present invention that comes together with word description.It should be evident that drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, without having to pay creative labor, other accompanying drawings can also be obtained according to these accompanying drawings.In the accompanying drawings：Fig. 1 is the flow chart of an embodiment of the load-balancing method of the embodiment of the present invention；
Fig. 2 is the composition schematic diagram of an embodiment of the load balancing apparatus of the embodiment of the present invention；
Fig. 3 is the composition schematic diagram of an embodiment of the base station of the embodiment of the present invention；
Fig. 4 is the flow chart of another embodiment of the load-balancing method of the embodiment of the present invention；
Fig. 5 is the Signalling exchange flow chart for the embodiment that two base stations carry out information exchange；
Fig. 6 is the Signalling exchange flow chart for another embodiment that two base stations carry out information exchange；
Fig. 7 is the composition schematic diagram of another embodiment of the load balancing apparatus of the embodiment of the present invention；Fig. 8 is the composition schematic diagram of another embodiment of the base station of the embodiment of the present invention；
Fig. 9 is the configuration diagram of an embodiment of the communication system of the embodiment of the present invention；Figure 10 is the configuration diagram of another embodiment of the communication system of the embodiment of the present invention.Embodiment
Referring to the drawings, by following specification, foregoing and further feature of the invention will be apparent.In the specification and illustrated in the drawings, specifically disclose only certain exemplary embodiments of this invention, which show some embodiments for the principle that can wherein use the present invention, it will be appreciated that, the invention is not restricted to described embodiment, on the contrary, the present invention includes whole modifications, modification and the equivalent fallen within the scope of the appended claims.The various embodiments to the present invention are illustrated below in conjunction with the accompanying drawings.These embodiments are exemplary, are not limitations of the present invention.
Embodiment 1
The embodiments of the invention provide a kind of load-balancing method, Fig. 1 is the flow chart of this method, refer to Fig. 1, and this method includes：
Step 101:First base station sends request message to the second base station, and the relevant information of the load of the operator of the cell receiving of second base station or second base station request message instruction is provided by the second base station described in the request message requests；
Step 103:The first base station receives the new information that second base station is returned, and the relevant information of the load of the operator of the cell receiving of second base station or second base station request message instruction is obtained according to the new information.
In a step 101, the information that the request message is asked is, for example,：Can the cell of second base station or second base station receive the load of the operator；And/or, the cell of second base station or second base station can receive the load capacity of the load of the operator；And/or, the cell of second base station or second base station can receive the available resources of the load of the operator；And/or, the cell of second base station or second base station can receive the residual capacity of the load of the operator.The first base station to the second base station by sending request message, to ask second base station to provide above- mentioned information.
In a step 101, request message can include cell identifier and/or operator's configured information and/or available resources configured information.
For cell identifier, it indicates the relevant information that the cell that first base station asks the second base station to provide indicated by the cell identifier receives the load of operator.For example, the cell that the cell identifier is indicated can receive the load of which operator, and receive the available resources and/or load capacity and/or residual capacity etc. of the load of these operators.
Wherein, if the request message only includes cell identifier, operator so indicated by the request message can be the operator that is supported of cell of first base station or first base station, can also be the operator that the cell on the second base station indicated by the cell identifier is supported, but the present embodiment is not in this, as limitation.
For operator's configured information, can it, which indicates first base station, asks the second base station to provide the cell of second base station or second base station receive the load of the operator indicated by operator's configured information.
In one embodiment, operator's configured information is Operator ID, and the Operator ID, which indicates first base station, wishes to know the load for the operator that can the cell of the second base station or the second base station receive Operator ID instruction.
In the present embodiment, the operator can be physical operator or virtual operator, and its identifier can be a public land mobile network（PLMN, Public Land Mobile Network) identify or one group of PLMN mark, it can also be and represent mark that one group of PLMN is identified, etc..If table 1 below is the example that the request message includes Operator ID：
Table 1
As shown in table 1, in this example, first base station wishes that can the cell that know the second base station or the second base station receive the load of operator 1 to operator 6.
In another embodiment, operator's configured information indicates for operator, and the operator indicates first base station and wishes that can the cell that know the second base station or the second base station receive the load that the operator indicates indicated operator.
In the present embodiment, the operator indicates that a string of bit symbols can be used（Bitmap) represent, in the bitmap, an operator in one cell of each bit one operator of correspondence or correspondence second base station, each bit value indicates whether that can the cell that second base station be needed to confirm second base station or second base station receive the load of the operator corresponding to the bit, namely the value of each bit indicates whether first base station wishes to know whether the second base station can receive the load of the corresponding operator of the bit.
For example, in the cell information of existing service（Served cell information) in, first base station is known that the list of the operator that each cell of the second base station can be supported or PLMN marks.Bitmap indicates corresponding operator according to the order of the list with corresponding bit, and with the value of each bit（As 1 or 0) represent first base station whether wish to know that can the cell of the second base station or the second base station receive the load of the corresponding operator of the bit.Table 2 is the example of the operator list of the cell information of service.
Table 2
Operator 6 of 1 operator of operator, 2 operator, 3 operator, 4 operator 5 represents to wish to know using bit value as " 1 ", bit value is that " 0 " represents to be not intended to exemplified by knowing, if the bitmap in request message is " 001001 ", show that first base station wishes to know that can the cell of the second base station or the second base station receive the load of operator 3 and operator 6.
For another example according to the information of each cell（Such as " served cell information "), first base station is known that the operator list supported in each cell.A bitmap can be generated according to these information, each bit of the bitmap has corresponded to an operator in a cell of the second base station, the value of each bit（As 1 or 0) represent first base station whether wish to know the bit indicated by the second base station cell can receive bit instruction operator load.One example of the list for the operator that table 3 is supported by all cells of the second base station.
Table 3
Still represent to wish to know using bit value as " 1 ", bit value is that " 0 " represents to be not intended to exemplified by knowing, if the bitmap in request message is " 100010 ", then show that first base station wishes that can the cell 1 that know the second base station receive the load of operator 1, and can the cell 3 of the second base station receive the load of operator 4.
For available resources configured information, it indicates the available resources and/or load capacity and/or residual capacity of the load of all operators indicated by cell receiving operator's configured information of the second base station of first base station request the second base station of offer or the second base station；Or indicate available resources and/or load capacity and/or residual capacity that the cell that first base station asks the second base station to provide second base station or second base station receives the load of one or more operators indicated by operator's configured information.
In one embodiment, the available resources configured information is indicated by implicit.For example, if including above-mentioned operator's configured information in request message, the available resources configured information shows that first base station wishes to know the load capacity of the load for the operator that the cell of the second base station or the second base station receive indicated by above-mentioned operator's configured information（Can be the load capacity or total load capacity of difference）, and/or receive the load of these operators available resources (can be difference available resources or total available resources）, and/or receive the residual capacity of the load of these operators（Can be the residual capacity or total residual capacity of difference）.Again for example, if the cell of the second base station or the second base station can receive the load of the operator indicated by one or more above-mentioned operator's configured informations, then the available resources configured information indicates that first base station wishes to know that the cell of the second base station or the second base station receive the load capacity of the load from these operators（Can be the load capacity or total load capacity of difference）, and or receive these operators load available resources（Can be difference available resources or it is total can
Use resource）, and or receive these operators load residual capacity（Can be the residual capacity or total residual capacity of difference）.
In another embodiment, the available resources configured information is indicated by explicit way.For example, a new instruction defined in request message, shows that first base station wishes to know that the cell of the second base station or the second base station receive the load capacity of the load from the operator indicated by above-mentioned operator's configured information by the new instruction（Can be the load capacity or total load capacity of difference）, and/or receive the available resources of the load of these operators（Can be the available resources or total available resources of difference）, and/or receive the load of these operators residual capacity (can be difference residual capacity or total residual capacity）.Again for example, again by a new instruction defined in request message, if the cell of the second base station or the second base station can receive the load of the operator indicated by one or more above-mentioned operator's configured informations, then the new instruction shows that first base station wishes to know the load capacity of load of the cell receiving from these operators of the second base station or the second base station（Can be the load capacity or total load capacity of difference）, and or receive these operators load available resources（Can be the available resources or total available resources of difference）, and or receive these operators load residual capacity（Can be the residual capacity or total residual capacity of difference）.
In step 103, second base station is in the case of the part or all of information asked in can providing request message, new information is returned to first base station, notified the relevant information for the load for receiving operator in the cell of second base station or second base station by the new information/it is supplied to first base station.Here, the information that second base station is provided to first base station can be all or part of in the information that the request message that first base station is sent is asked, the load which operator indicated by request message can for example, be received and the available resources and/or load capacity and/or residual capacity etc. of the load for receiving these operators, will specifically be illustrated below in an example.Optionally, the information that second base station is provided to first base station can also not asked and the information related to the load that the cell of the second base station or the second base station receives operator that the second base station can be provided further comprising the first base station, and operator here is the operator not indicated in the request message of first base station transmission.Thus, first base station, which is able to know that, to be transferred to the second base station by the load of which operator, realize the other load balancing of carrier-class.
In step 103, the new information can periodically be sent according to the cycle set in request message, can also event triggering.Possible event is retransmited when the load at least one operator that the cell of the second base station or the second base station can receive first base station.Certainly, the present embodiment is not in this, as limitation.
In the present embodiment, in order to which the request message to step 101 is responded, the second base station can also return to answer message to first base station, then this method can also include：
Step 102:The first base station receives the answer message that second base station is returned, and determines that second base station can provide which of information that the request message is asked according to the answer message；
In a step 102, second base station is after the above-mentioned request message of first base station transmission is received, according to the loading condition of oneself or other strategies, answer message is replied to first base station, informing first base station by the answer message, it can provide which information for needing to know in the request message, can be all or part of information asked in request message；In the case of any information asked in can not providing request message, it is failure that second base station can reply request of the failed message to show first base station to first base station.In this way, the answer message that first base station is returned according to the second base station can determine that second base station can provide which of information that request message is asked.
In the present embodiment, request message can be the resource status request of existing LTE system（Resource status request) message；Answer message/failed message can be that the resource status in existing LTE system is replied（Resource status response) message；New information can be that the resource status in existing LTE system updates（Resource status update) message, but the present embodiment, not in this, as limitation, in other embodiments, the request message, the answer message/failed message and the new information can also be other message.
Pass through the method for the embodiment of the present invention, the load that first base station will be intended to be subsequently transferred to some operators of the second base station informs the second base station by request message, the relevant information that second base station is possible to the load of the operator received again feeds back to first base station by new information, thus first base station, which is known that, to be transferred to the second base station by the load of which operator, thus achieve the other load balancing of carrier-class.
The embodiment of the present invention additionally provides a kind of load balancing apparatus, as described in the following examples 2, because the principle that the device solves problem is similar with the method for embodiment 1, therefore its specific implementation is referred to the implementation of the method for embodiment 1, and explanation is not repeated in content something in common.
Embodiment 2
The embodiments of the invention provide a kind of load balancing apparatus, the device can apply to base station, in the present embodiment, for convenience of explanation, referred to as first base station.Fig. 2 is the composition schematic diagram of the device, refer to Fig. 2, and the device 200 includes：
Transmitting element 201, it sends request message to the second base station, and the relevant information of the load of the operator of the cell receiving of second base station or second base station request message instruction is provided by the second base station described in the request message requests；
First receiving unit 202, it receives the new information that second base station is returned, and the load of the operator of the cell receiving of second base station or second base station request message instruction is obtained according to the new information
Relevant information.
In an embodiment of the present embodiment, the device also includes：
Second receiving unit 203, it receives the answer message that second base station is returned, determines that second base station can provide which of information that the request message is asked according to the answer message；
In the present embodiment, the information that the request message that transmitting element 201 is sent is asked includes：Can the cell of second base station or second base station receive the load of the operator；And/or, the cell of second base station or second base station can receive the load capacity of the operator；And/or, the cell of second base station or second base station can receive the available resources of the load of the operator；And/or, the cell of second base station or second base station can receive the residual capacity of the load of the operator.
In the present embodiment, the request message that transmitting element 201 is sent includes：Cell identifier, and/or operator's configured information, and/or available resources configured information.
Wherein, the cell identifier indicates the relevant information for the load that first base station asks the cell that provides indicated by the cell identifier of the second base station to receive operator.
Wherein, can operator's configured information indicate first base station and ask the second base station to provide the cell of second base station or second base station and receive the load of the operator indicated by operator's configured information.
Wherein, the available resources configured information indicates the available resources and/or load capacity and/or residual capacity that the cell that first base station asks the second base station to provide the second base station or the second base station receives the load of all operators indicated by operator's configured information；Or indicate available resources and/or load capacity and/or residual capacity that the cell that first base station asks the second base station to provide the second base station or the second base station receives the load of one or more operators indicated by operator's configured information.
In the present embodiment, operator's configured information is that Operator ID or operator indicate.
Wherein, the Operator ID is public land mobile network（PLMN) identify, either one group of PLMN identifies or represented the mark of one group of PLMN mark.
Wherein, the operator is designated as a string of bit symbols, an operator in one cell of each bit one operator of correspondence or correspondence second base station, each bit value indicates whether first base station asks second base station to confirm that can the cell of second base station or second base station receive the load of the operator corresponding to the bit.
Pass through the device of the embodiment of the present invention, it would be desirable to which the load for being transferred to some operators of the second base station informs the second base station by request message, and the relevant information that the second base station is possible to the load of the operator received again passes through new information
Feed back, it is possible thereby to which the second base station can be transferred to by the load of which operator by knowing, realize the other load balancing of carrier-class.
Embodiment 3
The embodiment of the present invention provides a kind of base station, and the base station includes load balancing apparatus as described in Example 2.Fig. 3 is a composition schematic diagram of the base station of the embodiment of the present invention.As shown in figure 3, base station 300 can include：Central processing unit（CPU) 301 and memory 302;Memory 302 is coupled to central processing unit 301.Wherein the memory 302 can store various data；The additionally program of storage information processing, and the program is performed under the control of central processing unit 301, to receive the various information of user equipment transmission and send solicited message to user equipment.
In one embodiment, the function of load balancing apparatus can be integrated into central processing unit 301.Wherein, central processing unit 301 can be configured as：Request message is sent to the second base station, the relevant information of the load of the operator of the cell receiving of the second base station or the second base station request message instruction is provided by the second base station described in the request message requests；The new information that second base station is returned is received, the relevant information of the load of the operator of the cell receiving of second base station or second base station request message instruction is obtained according to the new information.
Optionally, the central processing unit 301 is additionally configured to：The answer message that second base station is returned is received, determines that second base station can provide which of information that the request message is asked according to the answer message；Optionally, the information that the request message is asked includes：Can the cell of second base station or second base station receive the load of the operator；And/or, the cell of second base station or second base station can receive the load capacity of the operator；And/or, the cell of second base station or second base station can receive the available resources of the load of the operator；And/or, the cell of second base station or second base station can receive the residual capacity of the load of the operator.
Optionally, the request message includes：Cell identifier, and/or operator's configured information, and/or available resources configured information.
Wherein, the cell identifier indicates the relevant information for the load that first base station asks the cell indicated by the second base station offer cell identifier to receive operator.
Wherein, can operator's configured information indicates the cell of first base station request the second base station offer second base station or second base station receive the load of the operator indicated by operator's configured information.
Wherein, the available resources configured information indicate the cell that first base station asks second base station to provide the second base station or the second base station receive all operators indicated by operator's configured information load available resources and/
Or load capacity and/or residual capacity；Or indicate available resources and/or load capacity and/or residual capacity that the cell that first base station asks second base station to provide the second base station or the second base station receives the load of one or more operators indicated by operator's configured information.
Optionally, operator's configured information is that Operator ID or operator indicate.
Wherein, the Operator ID is public land mobile network（PLMN) identify, either one group of PLMN identifies or represented the mark of one group of PLMN mark.
Wherein, the operator is designated as a string of bit symbols, an operator in one cell of each bit one operator of correspondence or correspondence second base station, each bit value indicates whether first base station asks second base station to confirm that can the cell of second base station or second base station receive the load of the operator corresponding to the bit.
In another embodiment, load balancing apparatus can be with the separate configuration of central processing unit 301, load balancing apparatus can be for example configured to the chip being connected with central processing unit 301, the function of load balancing apparatus is realized by the control of central processing unit 301.
In addition, as shown in figure 3, base station 300 can also include：Transceiver 303 and antenna 304 etc.；Wherein, similarly to the prior art, here is omitted for the function of above-mentioned part.It is worth noting that, base station 300 is also not necessary to include all parts shown in Fig. 3；In addition, base station 300 can also include the part being not shown in Fig. 3, prior art may be referred to.
Pass through the base station of the embodiment of the present invention, the load that some operators of the second base station will be intended to be subsequently transferred to informs the second base station by request message, the relevant information that second base station is possible to the load of the operator received again is fed back by new information, it is possible thereby to which the second base station can be transferred to by the load of which operator by knowing, the other load balancing of carrier-class is realized.
Embodiment 4
The embodiment of the present invention additionally provides a kind of load-balancing method, and this method is the processing of second base station side corresponding with the method for embodiment 1.Fig. 4 is the flow chart of this method, refer to Fig. 4, and this method includes：
Step 401:Second base station receives the request message that first base station is sent, and the relevant information of the load of the operator of the cell receiving request message instruction of second base station or second base station that the first base station is asked is determined according to the request message；
Wherein, the request message is asked information and the content included are elaborated in embodiment 1, and its content is incorporated in this, will not be repeated here.
Step 403:Second base station sends new information to the first base station, provides the relevant information of the load of the operator of the cell receiving of second base station or second base station request message instruction to the first base station by the new information.
Wherein, the new information informs that the cell of the base station of first base station second or the second base station can receive the load of which operator indicated by request message, and the load of receptible operator load capacity and/or the relevant information such as available resources and/or residual capacity.
Wherein, the new information is replied in the second base station in the case of the load that can receive some operators indicated by request message to first base station.
Wherein, the content that corresponding requests message is included, the new information can include Operator ID and/or operator indicates and/or available resource information.
Similar with the Operator ID in request message for Operator ID, it indicates the cell of the second base station or the second base station（The cell corresponding to cell identifier in request message）Can（Or can not）Receive the load of the operator indicated by the Operator ID.
If for example, containing the identifier of operator 1 and operator 4 in new information, the cell or the second base station for showing the second base station can receive the load from the two operators.
Wherein, the Operator ID identifies for PLMN, and either one group of PLMN identifies or represented the mark of one group of PLMN mark.
Indicate that similar with operator's instruction in request message, it indicates the cell of the second base station or the second base station for operator（The cell corresponding to cell identifier in request message）Can（Or can not）Receive the load that the operator indicates indicated operator.
Likewise, the operator indicates it can is an operator in a string of bit symbols, a cell of the second base station of each bit one operator of correspondence or correspondence, each bit value（Such as " 1 " or " 0 ") indicate second base station or the cell of second base station can（Or can not）Receive the load of the operator corresponding to the bit.
By taking the operator list in the request message shown in table 1 as an example, if the second base station replies Bit String " 001000 ", the cell or the second base station for showing the second base station can receive the load from operator 3 in first base station.
By taking the operator list in the request message shown in table 2 as an example, if have received Bit String " 001001 " in request message, second base station replies Bit String " 000001 ", then the cell or the second base station for showing the second base station can receive the load from operator 6 in first base station.
By taking the operator list in the request message shown in table 3 as an example, if have received Bit String " 100010 " in request message, second base station replies Bit String " 100000 ", then the load from operator 1 in first base station can be received by showing the cell 1 of the second base station.
For available resource information, it is similar with the available resources configured information in request message, its cell for indicating the second base station or the second base station receives the available resources and/or load capacity and/or residual capacity of the load of all operators indicated in request message, for example, the cell of the second base station or the second base station receive the load capacity of operator indicated in request message（Can be the load capacity or total load capacity of difference）, and or receive in request message indicated operator load available resources（Can be the available resources or total available resources of difference）, and or receive in request message indicated operator load residual capacity（Can be the residual capacity or total residual capacity of difference）；Or indicate the second base station or the second base station cell receive one or more operators indicated in request message load available resources and/or load capacity and/or residual capacity, for example, if the cell of the second base station or the second base station can receive the load of the operator indicated by one or more request messages, the available resource information provides the cell of the second base station or the second base station receives the load capacity from these operators（Can be the load capacity or total load capacity of difference）, and or receive these operators load available resources (can be difference available resources or total available resources）, and or receive these operators load residual capacity（Can be the residual capacity or total residual capacity of difference）.
In the present embodiment, the available resource information can be multiplexed existing information word（IE, Information Element) " Composite available capacity group " (TS36.423) structure, content indicated by the information is for operator, rather than cell.It is identical with existing standard for the structure of " the Composite available capacity group ", it will not be repeated here.
In an embodiment of the present embodiment, the step 102 of correspondence embodiment 1, this method can also include：Step 402:Second base station sends answer message to the first base station, and which of information that the request message is included can be provided by being replied by the answer message to the first base station；
Wherein, second base station is after the request message of first base station transmission is received, reply first base station can provide which information for needing to know in the request message by answer message according to oneself loading condition or predetermined policy, can be all or part of information asked in request message；In the case of any information asked during request message can not be provided, failed message is replied to first base station, to inform that its request of first base station fails.
In the present embodiment, first base station and the second base station can interact above-mentioned request message, answer message and new information by X2 interface, and above-mentioned request message, answer message and new information can also be interacted by S1 interfaces.
Fig. 5 is the signaling process figure that above-mentioned message is interacted by X2 interface, and Fig. 6 is the signaling process figure that above-mentioned message is interacted by S1 interfaces.If using S1 interfaces, first base station and the second base station pass through mobility management entity（MME, Mobility Management Entity) carry out the interaction of signaling.
Pass through the method for the embodiment of the present invention, the relevant information for being possible to the load of the operator of receiving feeds back to the first base station for sending request by new information, thus first base station, which is known that, to be transferred to the second base station by the load of which operator, realize the other load balancing of carrier-class.
The embodiment of the present invention additionally provides a kind of load balancing apparatus, as described in the following examples 5, because the principle that the device solves problem is similar with the method for embodiment 4, therefore its specific implementation is referred to the implementation of the method for embodiment 4, and explanation is not repeated in content something in common.
Embodiment 5
The embodiments of the invention provide a kind of load balancing apparatus, the device can apply to base station, for convenience of explanation, referred to as the second base station.Fig. 7 is the composition schematic diagram of the device, refer to Fig. 7, and the device 700 includes：
Receiving unit 701, it receives the request message that first base station is sent, and the relevant information of the load of the operator of the cell receiving request message instruction of second base station or second base station that the first base station is asked is determined according to the request message；
First transmitting element 702, it sends new information to the first base station, provides the relevant information of the load of the operator of the cell receiving of second base station or second base station request message instruction to the first base station by the new information.
In the present embodiment, the information that the new information is provided is, for example, that the cell of the second base station or the second base station can receive the load of which operator of request message instruction；And/or, receive the available resources and/or load capacity and/or residual capacity of the load of these operators.
In the present embodiment, the new information that the first transmitting element 702 is sent can include Operator ID and/or operator indicates and/or available resource information.
Wherein, Operator ID indicates the second base station or the cell of the second base station can（Or can not）Receive the load of the operator indicated by the Operator ID.
Wherein, operator indicates the second base station or the cell of the second base station can（Or can not）Receive the load that the operator indicates indicated operator.
Wherein, available resource information indicate the second base station or the second base station cell receive request message instruction all operators load available resources and/or load capacity and/or residual capacity；Or indicate the second base station or the second base
The cell stood receives the available resources and/or load capacity and/or residual capacity of the load of one or more operators of request message instruction.
In the present embodiment, the Operator ID identifies for PLMN, and either one group of PLMN identifies or represented the mark of one group of PLMN mark.
In the present embodiment, the operator is designated as a string of bit symbols, an operator in a cell of the second base station of each bit one operator of correspondence or correspondence, and each bit value indicates the second base station or the cell of the second base station can（Or can not）Receive the load of the operator corresponding to the bit.
In an embodiment of the present embodiment, the device also includes：
Second transmitting element 703, it sends answer message to the first base station, and which of information indicated by the request message can be provided to first base station reply by the answer message.
Pass through the device of the embodiment of the present invention, the relevant information for being possible to the load of the operator of receiving feeds back to the first base station for sending request by new information, thus first base station, which is known that, to be transferred to the second base station by the load of which operator, realize the other load balancing of carrier-class.
Embodiment 6
The embodiment of the present invention additionally provides a kind of base station, and the base station includes load balancing apparatus as described in Example 5.Fig. 8 is a composition schematic diagram of the base station of the embodiment of the present invention.As shown in figure 8, base station 800 can include：Central processing unit（CPU) 801 and memory 802;Memory 802 is coupled to central processing unit 801.Wherein the memory 802 can store various data；The additionally program of storage information processing, and the program is performed under the control of central processing unit 801, to receive the various information of user equipment transmission and send solicited message to user equipment.
In one embodiment, the function of load balancing apparatus can be integrated into central processing unit 801.Wherein, central processing unit 801 can be configured as：The request message that first base station is sent is received, the relevant information of the load of the operator of the cell receiving request message instruction of the second base station or the second base station that the first base station is asked is determined according to the request message；New information is sent to the first base station, the relevant information of the load of the operator of the cell receiving of second base station or second base station request message instruction is provided by the new information to the first base station.
Optionally, the central processing unit 801 is additionally configured to：Answer message is sent to the first base station, which of information that the request message is asked can be provided by being replied by the answer message to the first base station.
Optionally, the new information provides following information：The cell of second base station or the second base station can receive request and disappear
Cease the load of which operator indicated；And/or, the cell of the second base station or the second base station receives the available resources and/or load capacity and/or residual capacity of the load of the operator of request message instruction.
Optionally, new information includes：Operator ID and/or operator indicate and/or available resource information.Wherein, Operator ID indicates the second base station or the cell of the second base station can（Or can not）Receive the load of the operator indicated by the Operator ID.
Wherein, operator indicates the second base station or the cell of the second base station can（Or can not）Receive the load that the operator indicates indicated operator.
Wherein, available resource information indicate the second base station or the second base station cell receive request message instruction all operators load available resources and/or load capacity and/or residual capacity；Or indicate the second base station or the second base station cell receive request message instruction one or more operators load available resources and/or load capacity and/or residual capacity.
Optionally, the Operator ID identifies for PLMN, and either one group of PLMN identifies or represented the mark of one group of PLMN mark.
Optionally, the operator is designated as a string of bit symbols, an operator in a cell of the second base station of each bit one operator of correspondence or correspondence, and each bit value indicates the second base station or the cell of the second base station can（Or can not）Receive the load of the operator corresponding to the bit.
In another embodiment, load balancing apparatus can be with the separate configuration of central processing unit 801, load balancing apparatus can be for example configured to the chip being connected with central processing unit 801, the function of load balancing apparatus is realized by the control of central processing unit 801.
In addition, as shown in figure 8, base station 800 can also include：Transceiver 803 and antenna 804 etc.；Wherein, similarly to the prior art, here is omitted for the function of above-mentioned part.It is worth noting that, base station 800 is also not necessary to include all parts shown in Fig. 8；In addition, base station 800 can also include the part being not shown in Fig. 8, prior art may be referred to.
Pass through the base station of the embodiment of the present invention, the relevant information for being possible to the load of the operator of receiving feeds back to the first base station for sending request by new information, thus first base station, which is known that, to be transferred to the second base station by the load of which operator, realize the other load balancing of carrier-class.
Embodiment 7
The embodiment of the present invention additionally provides a kind of communication system, and the communication system includes the first base station described in embodiment 3 and the second base station described in embodiment 6.
Fig. 9 is a composition schematic diagram of the communication system of the embodiment of the present invention, as shown in figure 9, the communication system 900 includes the base station 902 of first base station 901 and second.Wherein,
First base station 901 sends request message to the second base station 902, and the relevant information of the load of the operator of the cell receiving of second base station or the second base station request message instruction is provided by the base station of request message requests second；
Second base station 902 receives the request message, and new information is sent to first base station 901, receive the relevant information of the load for the operator that the request message is indicated to the cell of the second base station 902 of offer of first base station 901 or the second base station 902 by new information.
Optionally, second base station 902 can also send answer message to first base station 901, and which of described relevant information can be provided by being replied by the answer message to first base station 901.
Wherein, first base station and the second base station interact above-mentioned message by X2 interface.
In the present embodiment, first base station 901 can be the base station 300 described in embodiment 3;Second base station 902 can be the second base station 800 described in embodiment 6.Its content is incorporated in this, will not be repeated here.
Figure 10 is another composition schematic diagram of the communication system of the present embodiment, as shown in Figure 10, and the communication system 1000 is in addition to including the communication system identical first base station 901 and the second base station 902 with Fig. 9, in addition to a mobility management entity（MME) 903.Wherein,
The request message that first base station 901 is sent is transmitted to the second base station 902, and the answer message for sending the second base station 902 by S1 interfaces by the MME by S1 interfaces（Optionally）First base station 901 is transmitted to new information.
Pass through the communication system of the embodiment of the present invention, the load that first base station will be intended to be subsequently transferred to some operators of the second base station informs the second base station by request message, the relevant information that second base station is possible to the load of the operator received again feeds back to first base station by new information, thus first base station, which is known that, to be transferred to the second base station by the load of which operator, thus achieve the other load balancing of carrier-class.
The embodiment of the present invention also provides a kind of computer-readable program, wherein when performing described program in a base station, described program causes computer to perform embodiment 1 or the load-balancing method described in embodiment 4 in the base station.
The embodiment of the present invention also provides a kind of storage medium for the computer-readable program that is stored with, wherein the computer-readable program causes computer to perform embodiment 1 or the load-balancing method described in embodiment 4 in a base station.
Apparatus and method more than of the invention can be realized by hardware, can also be realized by combination of hardware software.The present invention relates to such computer-readable program, it when the program is performed by logical block, can realize the logical block
Devices described above or component parts, or the logical block is realized various methods or step described above.Logical block is such as the processor used in field programmable logic part, microprocessor, computer.The invention further relates to the storage medium for storing procedure above, such as hard disk, disk, CD, DVD, flash memory.
Above in association with specific embodiment, invention has been described, it will be appreciated by those skilled in the art that these descriptions are all exemplary, it is not limiting the scope of the invention.Those skilled in the art can make various variants and modifications to the present invention according to spirit and principles of the present invention, and these variants and modifications are also within the scope of the invention.
Claims (1)
- Claims1st, a kind of load balancing apparatus, described device is applied to first base station, wherein, described device includes：Transmitting element, it sends request message to the second base station, and the relevant information of its load for receiving the operator that the request message is indicated is provided by the second base station described in the request message requests；First receiving unit, it receives the new information that second base station is returned, and the relevant information of the load of the operator of the cell receiving of second base station or second base station request message instruction is obtained according to the new information.2nd, device according to claim 1, wherein, described device also includes：Second receiving unit, it receives the answer message that second base station is returned, determines that second base station can provide which of information that the request message is asked according to the answer message.3rd, device according to claim 1, wherein, the information that the request message that the transmitting element is sent is asked includes：Can the cell of second base station or second base station receive the load of the operator；And/or the cell of second base station or second base station receive the load capacity of the load of the operator；And/or the cell of second base station or second base station receive the available resources of the load of the operator；Receive the residual capacity of the load of the operator with the cell of/second base station or second base station.4th, device according to claim 1, wherein, the request message that the transmitting element is sent includes:Cell identifier, and/or operator's configured information, and/or available resources configured information.5th, device according to claim 4, wherein, the cell identifier indicates the relevant information for the load that the first base station asks the cell indicated by the second base station offer cell identifier to receive operator.6th, device according to claim 4, wherein, can operator's configured information indicates the cell of the first base station request the second base station offer second base station or second base station receive the load of the operator indicated by operator's configured information.7th, device according to claim 4, wherein, the available resources configured information indicates the available resources and/or load capacity and/or residual capacity of the load of all operators indicated by cell receiving operator's configured information of first base station request the second base station offer second base station or second base station；Or indicate the first base station and ask that second base station provides second base station or the cell of second base station receives institute State the available resources and/or load capacity and/or residual capacity of the load of one or more operators indicated by operator's configured information.8th, device according to claim 4, wherein, operator's configured information is that Operator ID or operator indicate.9th, device according to claim 8, wherein, the Operator ID is public land mobile network(PLMN) identify, either one group of PLMN identifies or represented the mark of one group of PLMN mark.10th, device according to claim 8, wherein, the operator is designated as a string of bit symbols, an operator in one cell of each bit one operator of correspondence or correspondence second base station, each bit value indicates whether the first base station asks second base station to confirm that can the cell of second base station or second base station receive the load of the operator corresponding to the bit.11st, a kind of load balancing apparatus, described device is applied to the second base station, wherein, described device includes：Receiving unit, it receives the request message that first base station is sent, and the relevant information of the load of the operator of the cell receiving request message instruction of second base station or second base station that the first base station is asked is determined according to the request message；First transmitting element, it sends new information to the first base station, provides the relevant information of the load of the operator of the cell receiving of second base station or second base station request message instruction to the first base station by the new information.12nd, device according to claim 11, wherein, described device also includes：Second transmitting element, it sends answer message to the first base station, and which of information that the request message is asked can be provided by being replied by the answer message to the first base station.13rd, device according to claim 11, wherein, the information that the new information that second transmitting element is sent is provided includes：The cell of second base station or second base station can receive or can not receive the load for which operator that the request message is indicated；And/orThe cell of second base station or second base station receives the available resources and/or load capacity and/or residual capacity of the load for the operator that the request message is indicated.14th, device according to claim 11, wherein, the new information that second transmitting element is sent includes：Operator ID and/or operator indicate and/or available resource information.15th, device according to claim 14, wherein, the Operator ID indicates second base Stand or the cell of second base station or can not receive the load of the operator indicated by the Operator ID.16th, device according to claim 14, wherein, operator's configured information, which indicates second base station or the cell of second base station, or can not receive the load of the operator indicated by operator's configured information.17th, device according to claim 14, wherein, the available resource information indicates the available resources and/or load capacity and/or residual capacity of the load of all operators of the cell receiving of second base station or second base station request message instruction；Or indicate the available resources and/or load capacity and/or residual capacity of the load of one or more operators of the cell receiving of second base station or second base station request message instruction.18th, device according to claim 14, wherein, the Operator ID identifies for PLMN, and either one group of PLMN identifies or represented the mark of one group of PLMN mark.19th, device according to claim 18, wherein, the operator is designated as a string of bit symbols, an operator in one cell of each bit one operator of correspondence or correspondence second base station, each bit value, which indicates second base station or the cell of second base station, or can not receive the load of the operator corresponding to the bit.20th, a kind of communication system, the communication system includes first base station and the second base station, wherein,The first base station sends request message to second base station, and the relevant information of the load of the operator of the cell receiving of second base station or second base station request message instruction is provided by the second base station described in the request message requests；Second base station receives the request message, and new information is sent to the first base station, the relevant information of the load of the operator of the cell receiving of second base station or second base station request message instruction is provided by the new information to the first base station.
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| PCT/CN2014/071676 WO2015113208A1 (en) | 2014-01-28 | 2014-01-28 | Load balancing method, apparatus and communication system |
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| US20130084835A1 (en) * | 2006-05-25 | 2013-04-04 | Wefi, Inc. | Method and System for Selecting a Wireless Network for Offloading |
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| US20130084835A1 (en) * | 2006-05-25 | 2013-04-04 | Wefi, Inc. | Method and System for Selecting a Wireless Network for Offloading |
| CN101801029A (en) * | 2009-02-06 | 2010-08-11 | 华为技术有限公司 | Method, device and system for managing cell |
| CN102256304A (en) * | 2010-05-19 | 2011-11-23 | 电信科学技术研究院 | Base station communication method and base station |
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