The management method of local resource in the mobile communication system
Technical field
The present invention relates to mobile communication system, more particularly, the present invention relates to the management method of local resource in the mobile communication system.
The prior art background
Usually, as shown in Figure 1, utilize subscriber equipment (hereinafter to be referred as UE) 30, UTRAN 20 and core net (hereinafter to be referred as CN) 10 to make up the UMTS structure.
Fig. 2 is illustrated in the UMTS basic structure being connected and the block diagram of the basic structure of UTRAN 20 between the CN 10 and UTRAN 20.
Please refer to Fig. 2, UTRAN 20 comprises the RNS (hereinafter to be referred as RNS) 21 and 22 that links to each other with CN10 by the logic interfacing that is called as Iu respectively.
RNS 21/22 comprises radio network controller (hereinafter to be referred as RNC) 21a/22a and at least one logical node 21b, 21c, 22b and 22c respectively.
The various UE 30 that each logical node (hereinafter to be referred as Node B) 21b, 21c, 22b and 22c are responsible for being positioned at its service area carry out wireless transmission, and by being called as the interface of Iub, Node B is connected to RNC 21a or RNC22a in its RNS 21 or the RNS 22.
RNC 21a or RNC 22a are responsible for using Radio Resource and its integrality are controlled, also be responsible for shifting various UE are carried out the requirement of signal processing, they comprise assembling/decomposition function piece, are used to support a large amount of diversity between different nodes B 21b, 21c, 22b and the 22c.
RNC 21a and the RNC 22a of different RNS 21 and RNS 22 are connected to each other by the logic interfacing that is called as Iur in the UTRAN 20, and each RNS is responsible for its local resource is managed.
When being applicable to RNC 21a and RNC 22a as the home cell that is installed in the equipment of Node B 21b, 21c, 22b and 22c with the structure sub-district, then in the home cell that Node B 21b, 21c, 22b and 22c are responsible for, RNC 21a and RNC 22a set up sub-district, public physic channel and common transmission channel.
Fig. 3 is illustrated in the state transitions schematic diagram of the base station home cell that passes through the Iub interface between the control base station in the UTRAN.
Fig. 4 illustrates the process that the base station sends to the resource status report message control station.
With reference to figure 3 and Fig. 4, when when Node B generates home cell, by the resource status report message that send base station shown in Figure 4, Node B with home cell can with message send to RNC.
When Node B can not be used home cell, the base station sends to RNC with the removed message of home cell, and RNC just discharges the various resources that home cell is distributed like this.
Fig. 5 explanation is according to the content of the resource status report message of prior art.
Please refer to Fig. 5, the information that relates to Node B should comprise information unit or the global size credit (Capacity Credit) of DL, and common signal channel capacity consumption rule and dedicated channel capacity consumption rule can also select to comprise UL capacity credit amount.
The information that relates to home cell should comprise home cell ID, interpolation/deletion designator and maximum DL power capacity.When adding home cell, information should comprise DL or global size credit, and common signal channel capacity consumption rule and dedicated channel capacity consumption rule can also select to comprise UL capacity credit amount.
Home cell ID is the local district identification symbol information of the report unit relevant with the base station of transmitting the resource status report message.
According to the information that relates to Node B and home cell, RNC sets up sub-district, public physic channel CPCH and Common transport channel CTCH at node corresponding B.
In the prior art, utilize home cell unit or Node B, report this resource status report message, so just produced following point to RNC.
At first, because DL and the UL capacity credit amount in the resource status report message of Node B report of being included in is to be distributed by the respective sectors of the identical UARFCN of corresponding base station, so RNC just can not notify the information change of this DL capacity credit amount and UL capacity credit amount.Therefore be difficult to local resource is managed.
In addition, the home cell that sector number that home cell uses and UARFCN number are Node B adds information, and irrelevant with RNC, but in RNC with this information of NBAP protocol report.Up to the present, the standard according to prior art does not also comprise this information unit.Therefore, RNC can not provide about the sector number that can be handled by base station at random and the information of UARFCN number.Distributors should access node B and RNC.
The present invention's general introduction
Therefore, the present invention relates to a kind of method of managing local resource in mobile communication system, this method can solve because one or more problems that the limitation of prior art or defective produce.
An object of the present invention is to provide a kind of method of managing local resource in mobile communication system, this method can make RNC utilize frequency cells that the resource of Node B is managed.
Another object of the present invention provides the method for management local resource in mobile communication system, and this method can make RNC avoid the resource of Node B is carried out dual command.
To partly describe in the following description other advantage of the present invention, purpose and feature, and by following content is studied, for those skilled in the art, other advantage of the present invention, purpose and feature will become more obvious, and also can know other advantage of the present invention, purpose and feature in realizing process of the present invention.Utilize specifically noted structure in printed instructions and claim thereof and the accompanying drawing, can realize purpose of the present invention and other advantage.
In order to realize these purposes and other advantage and according to purposes of the present invention, as this summary and broad description, in the RRM between base station and control station, the method for management local resource comprises the steps: to utilize the home cell unit with same frequency to receive the resource status report message from the base station in the UMTS system according to the present invention; Control station produces the sub-district with the sector number equal number of being realized according to the resource status report message; And the cell unit that the control station utilization produces manages base station wireless resource.
The resource status report message preferably includes: have the information of the home cell element identifier (element ID) of same frequency, relevant same frequency in the base station, to the effective sector number in base station and about the information of sector number that the base station is realized.
Preferably make up, produce the local district identification corresponding and accord with the sub-district that produces by identifier with the sector of home cell element identifier (element ID) and realization.
This method further preferably includes following steps: be provided with between base station and control station and the same number of common signal channel of sector number and the dedicated channel that realize.
The resource status report message preferably includes the Radio Resource capacity that the base station allows to offer up link and down link.
Control station preferably manages the Radio Resource capacity according to the resource status report message, and is public or special-purpose for the same frequency unit.
According to another aspect of the present invention, in the RRM between base station and control station, the method of management local resource comprises step in the UMTS system: the resource status report message that comprises the information of relevant institute's dividing frequency and base station section is sent to control station, utilize institute dividing frequency unit then, receive the resource of distributing from the sub-district that maps to the home cell that produces according to the quantity identical with number of sectors.
Obviously, above-mentioned is exemplary to general remark of the present invention and following detailed description, its objective is the further explanation that the invention provides that claim is limited.
Brief description of drawings
Introduce the application and help further to understand the present invention as the accompanying drawing of the application's part, accompanying drawing illustrates the embodiment of the invention, and it is used from the explanation principle of the invention with explanation one.Accompanying drawing comprises:
Fig. 1 illustrates the UMTS structure;
Fig. 2 illustrates the structure of the UTRAN in the UMTS;
Fig. 3 is illustrated in the state transitions schematic diagram of the base station home cell that passes through the Iub interface between the control base station in the UTRAN;
Fig. 4 illustrates the process that the base station sends to the resource status report message control station;
Fig. 5 illustrates the content according to the resource status report message of prior art;
Fig. 6 illustrates the content according to resource status report message of the present invention; And
Fig. 7 illustrates the flow chart that is produced base station cell according to the present invention by control station.
Detailed description of the present invention
Now, will be to a preferred embodiment of the present invention will be described in detail, its example is shown in accompanying drawing.
The present invention is characterised in that, utilizes CDMA absolute frequency unit, comprises the resource status report message of UARFCN information and sector relevant information to the control station report from the base station, and control station just can utilize frequency cells that base station resource is managed like this.
In addition, feature of the present invention also is, by the NBAP agreement, more base station home cell is set, and need not the realization O﹠amp relevant with the sector with the UARFCN of the home cell that adds the base station to; M (Implementation O﹠amp; M) message.
Fig. 6 illustrates the content according to resource status report message of the present invention.
Please refer to Fig. 6, the information relevant with Node B comprises DL (down link) or global size credit, common signal channel capacity consumption rule and dedicated channel capacity consumption rule.And the information that relates to Node B further can select to comprise UL (up link) capacity credit amount.
DL or global size credit are can be by the information that the base station provided that transmits the resource status report message in down link, or total Radio Resource capacity information.
Common signal channel capacity consumption rule and dedicated channel capacity consumption rule are that the base station sends the employed radio resource consumption information of resource status report message in order to set up common signal channel and dedicated channel.
UL capacity credit amount is the Radio Resource capacity information of up link, and the wireless base station that this Radio Resource capacity is the transmission resources status report messages can provide.
The information relevant with the home cell group should comprise the sector and the maximum DL power capacity of home cell ID, interpolation/deletion designator, UARACN, sector user, realization.When adding home cell, information should comprise DL or global size credit, common signal channel capacity consumption rule and dedicated channel capacity consumption rule, and further selects to comprise UL capacity credit amount.
Home cell group ID is that Node B is passed through the identifier information that it sends the report unit of resource status report message.That is, because utilize { FA number * sector number } to determine the home cell number, wherein FA is frequency assignment, is divided into one group so have the home cell of identical UARFCN.Therefore, home cell group ID represents the identifier information of the cell set of dividing.
Interpolation/deletion designator is to send that the resource status report message represents that the home cell group is affixed to relevant base station or by the information from the relevant base station deletion by the base station.
Maximum DL power capacity is the maximum available transmission power when base station down sends the resource status report message.
UARACN is about send in the resource status report message process information to the absolute frequency of home cell set of dispense in the base station.The sector operating position is to the effective sector number information in base station.Realize that the sector is the sector number information about realizing.
Promptly, in the present invention, append to the unit information that is called as the home cell group by the sector number with UARFCN, available sector number and realization, the base station provides UL capacity credit amount and the DL capacity credit amount that can be used by the UARFCN information of base station assigns and each UARFCN to control station.According to following process shown in Figure 7, the RNC that receives this information produces the sub-district.
Fig. 7 illustrates the flow chart that is produced base station cell according to the present invention by control station.
With reference to figure 7, RNC receives from Node B and comprises content shown in Figure 6, the resource status report message (S20) relevant with home cell group (home cell with identical UFRACN).
RNC allows the sector (sector of realization) of the UARFCN information in the resource status report message and effective sector number (sector operating position) and current realization is discerned, and the quantity (UL/DL capacity credit amount) of the public and special-purpose Radio Resource in UARFCN unit is managed.
For this reason, at first, RNC produces the nearly sub-district of the sector number of realization of quantity.In this example, append to sector ID by ID with the home cell group, obtain the home cell ID (S21) of the sub-district that produces.That is, the ID with the home cell group is produced home cell ID mutually with the ID of the sector of realization.Like this, RNC organizes the sub-district.
RNC utilizes Node B realize to produce the process of sub-district, common signal channel and dedicated channel, the sector number identical (S22, S23) of the number of the sub-district that is produced, common signal channel and dedicated channel and the unit realization that utilizes home cell ID.If the sub-district can not be organized the home cell group fully, then RNC produces home cell ID (S21) again.
Therefore, the present invention utilizes Node B with such form, promptly utilize the UARFCN unit sector to be divided and utilized UARFCN dynamic assignment Radio Resource between the sector, therefore, can reduce overlapping probability, it is low that this overlapping possibility beguine utilizes cell unit to manage the overlapping possibility of generation according to prior art.Therefore help to carry out resource management.
In addition, the present invention can also set up more a plurality of home cells to the base station, need not to transmit between RNC and Node B to realize O﹠amp; M message.
Moreover, the present invention can also be applied to add the situation of sub-district between RNC and Node B in the IMT-2000 of DS method system.
The foregoing description only has illustrative, and the present invention is not had restricted meaning.Content of the present invention can easily be applied to the device of other type.Explanation of the present invention is only had descriptive sense, do not limit essential scope of the present invention.Obviously, the those of skill in the art in the present technique field can carry out many conversion, adjustment and variation.