CN1893682A - Method for managing wireless resource in multi-carrier-wave high-speed down-link grouped accessing system - Google Patents
Method for managing wireless resource in multi-carrier-wave high-speed down-link grouped accessing system Download PDFInfo
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Abstract
The method includes steps: base station collocates resource pool of carrier wave for each cell of supporting high speed down packet access (HSDPA); reporting information of resource pool of carrier wave possessed by each cell to radio network controller RNC; when user equipment (UE) accesses, based on information of resource pool of carrier wave, and multicarrier capability for HSDPA supported by UE, RNC collocates and manages resource of carrier wave of system. The invention manages frequency resources of cell precisely effectively, gives full play of HSDPA capability of multicarrier in cell and UE so as to raise transmission performance of system.
Description
Technical field
The present invention relates to the mobile communication technology field, be specifically related to a kind of method of managing Radio Resource in the multi-carrier-wave high-speed down-link grouped accessing system.
Background technology
HSDPA (high speed downlink packet access) is that 3GPP (third generation partnership project) is organized in a kind of new technology of introducing in Rlease 5 versions, it is by AMC (adaptive coding and modulating) and HARQ technology such as (mixing automatic request retransmission), can improve the message transmission rate of Packet Service down direction effectively, improve the band efficiency of system.
In the mobile radio system that adopts the HSDPA technology, by Iub interface (interface between base station node B and the radio network controller (RNC)) message, RNC can obtain the HSDPA ability and the related resource mode of operation of home cell/sub-district among the Node B.
In Iub interface agreement 25433-5c0, stipulate:
Become existence if having the home cell of HSDPA ability; Perhaps the HSDPA ability of home cell changes; Perhaps HS-DSCH (high speed descending sharing channel) related resource mode of operation changes.When any took place in these three kinds of situations, Node B will be by RESOURCE STATUSINDIC ATION (resource status indication) message informing RNC.
When RNC need be with Node B synchronous logic resource status, RNC sent AUDITREQUEST (audit request) message to Node B.After Node B receives the audit request message, respond AUDIT RESPONSE (audit response) message to RNC, in this message, Node B will report whether home cell has the ability of supporting HSDPA to RNC, and the resource operation state of the HS-DSCH of sub-district and upstate (if HSDPA is supported in this sub-district).Because existing HSDPA technology is based on single-carrier cell, so these information all are unit with the sub-district.RNC can carry out RRM according to these information that obtain, distribute the HSDPA related resource.
In order further to promote transmission of packet data speed, strengthen the superiority of HSDPA system on Packet data service, can adopt the multi-carrier HSDPA technology, promptly data can be simultaneously by a plurality of carrier waves to same user device transmissions.And can only report at present the information of the relevant HSDPA in whole home cell/sub-district in Iub mouth NBAP (the Node B application protocol) message, can not reflect that the multicarrier binding that Node B is supported uses the ability and the corresponding resource operation state of (be which resource can by unified scheduling).Like this, RNC just can not understand under the multi-frequency-point community, and which frequency can be by the unified scheduling of Node B.There is blindness in RNC when distribution follows DPCH (DPCH) to select frequency.Such as, to a UE (subscriber equipment) who supports multifrequency point HSDPA, distributing when following DPCH, the frequency of choosing can only be dispatched separately, can not bring into play the ability of this UE multi-carrier HSDPA.
Summary of the invention
The purpose of this invention is to provide a kind of method of managing Radio Resource in the multi-carrier-wave high-speed down-link grouped accessing system, to overcome the information that can only obtain the relevant HSDPA in whole home cell/sub-district in the prior art by Iub mouth NBAP message RNC, and can't know the ability of the multicarrier binding use that Node B is supported and the shortcoming of corresponding resource operation state, manage the frequency resource of sub-district accurately, rationally, effectively, give full play to the multi-carrier HSDPA ability of sub-district and UE.
For this reason, the invention provides following technical scheme:
A kind of method of managing Radio Resource in the multi-carrier-wave high-speed down-link grouped accessing system, described method comprises step:
The cell configuration carrier resource pond of high-speed downlink packet access HSDPA is supported for each in A, base station;
B, base station report radio network controller (RNC) with the carrier resource pond information that it has;
C, when subscriber equipment inserts, the HSDPA multi-carrier capability that RNC supports according to described carrier resource pond information and described subscriber equipment is distributed and is managed described system resource.
Described method also comprises step:
RNC sets up request message indication base station by the sub-district and sets up the sub-district, can specify the carrier resource pond of each carrier wave correspondence in this message;
RNC can put the corresponding relation that request message is revised carrier resource pond and carrier wave by cell re-configuration.
Described step B is specially:
B1, become existence when home cell with HSDPA ability; Perhaps the HSDPA ability of home cell changes; When perhaps high speed downlink shared channel HS-DSCH related resource mode of operation changed, the base station reported radio network controller (RNC) by the resource status Indication message with the carrier resource pond information that it has.
Described step B1 comprises:
In the home cell information of described resource status Indication message and cell information field, increase described carrier resource pond information;
The resource status Indication message that the base station will comprise described carrier resource pond information sends to RNC.
Described step B is specially:
B2, when the base station receive control RNC audit request AUDIT REQUEST message the time, the base station reports radio network controller (RNC) by checking response message with the carrier resource pond information that it has.
Described step B2 comprises:
In the home cell information of described checking response message and cell information field, increase described carrier resource pond information;
The checking response message that will comprise described carrier resource pond information sends to RNC.
Preferably, described carrier resource pond information comprises: carrier resource pond sign, the carrier number of support, mode of operation and upstate information.
Carrier wave in the same carrier resource of the unified scheduling pond, base station.
Described method also comprises step:
D, when needs carry out the measurement of high-speed downlink shared channel HS-DSCH transmission rate, specify the carrier resource pond under it.
Described step D comprises:
In public-measurement initialization request message, increase described carrier resource pond information;
The public-measurement initialization request message that RNC will comprise described carrier resource pond information sends to the base station.
By above technical scheme provided by the invention as can be seen, the present invention passes through to introduce HSDPA carrier resource pond, and the relevant NBAP message of Iub mouth is made corresponding modify, adds HSDPA resource pool relevant information in the resource status Indication message; In checking response message, increase described carrier resource pond information; Put the corresponding relation of specifying its frequency and HSDPA carrier resource pond in the request message at sub-district foundation request, cell re-configuration, promptly specify the affiliated HSDPA carrier resource pond of frequency (UARFCN); In public-measurement initialization request message, increase described carrier resource pond information.Like this, make RNC can obtain the relevant information in HSDPA carrier resource pond in the multi-frequency-point community, and carry out more accurate, more rational RRM thus, give full play to the multi-carrier HSDPA ability of sub-district and UE, further improve the system transmissions performance.
Description of drawings
Fig. 1 is the realization flow figure of the inventive method;
Fig. 2 is a NBAP message interaction process between RNC and Node B.
Embodiment
Core of the present invention is for the sub-district of supporting multicarrier, Node B can be unified the HSDPA carrier resource of scheduling and put into a HSDPA carrier resource pond, for setting an identification number in each carrier resource pond.Simultaneously, the relevant NBAP message of Iub mouth is made corresponding modify, in the resource status Indication message, add HSDPA resource pool relevant information; In checking response message, increase described carrier resource pond information; Put the corresponding relation of specifying its frequency and HSDPA carrier resource pond in the request message at sub-district foundation request, cell re-configuration, promptly specify the affiliated HSDPA carrier resource pond of frequency (UARFCN); In public-measurement initialization request message, increase described carrier resource pond information.RNC follows the required carrier wave of DPCH according to these information distribution then by the relevant information in HSDPA carrier resource pond in these message acquisition multi-frequency-point communities.
The present technique field personnel know, RNC is used to control the Radio Resource on UTRAN (Universal Terrestrial Radio Access Network road), is responsible for the Radio Resource of the sub-district of its control is managed.Node B links to each other with RNC by Iub interface, therefore, make RNC know the carrier resource pond information of Node B, so that according to these information carrier resource is managed, just need transmit by Iub interface message.
For this reason, the present invention does following the modification to the relevant NBAP message of Iub interface:
1. in resource status indication (Resource Status Indication) message, add HSDPA carrier resource pond relevant information:
In the existing message, the IE " HSDPA Capability (HSDPA ability) " of an expression HSDPA ability is arranged under Local Cell Information (home cell information) field, this can only illustrate whether whole LocalCell supports HSDPA.
In the present invention, in this field, increase HSDPA carrier resource pond information, comprise its identification number and ability thereof, schematically as follows shown in the table 2:
Table 2:
| Local Cell Information (home cell information) |
| Local Cell ID (local district identification number) |
| /*partly omitted*/ |
| HSDPA Capability (HSDPA ability) |
| HSDPA Carrier Resource Pool Information LCR (spreading rate is hanged down in HSDPA carrier resource pond) |
| HSDPA Carrier Resource Pool ID (HSDPA carrier resource pond identification number) |
| HSDPA Carrier Resource Pool Capability (HSDPA carrier resource pond ability) |
In the existing message, " HS-DSCH ResourcesInformation " (high speed descending sharing channel resource information) can be represented the resource operation state of HS-DSCH in each sub-district under the Cell Information (cell information).
In the present invention, in this field, increase the resource status and the upstate information of HSDPA carrier resource pond information, schematically as follows shown in the table 3:
Table 3:
| Cell Information (cell information) |
| C-ID (Cell Identity CI) |
| /*partly omitted*/ |
| HS-DSCH Resources Information (HS-DSCH resource information) |
| Resource Operational State (resource user mode) |
| Availability Status (effective status) |
| HSDPA Carrier Resource Pool Information LCR (spreading rate is hanged down in HSDPA carrier resource pond) |
| HSDPA Carrier Resource Pool ID (HSDPA carrier resource pond identification number) |
| Resource Operational State (resource user mode) |
| Availability Status (effective status) |
2. set up the corresponding relation of specifying its frequency and HSDPA carrier resource pond in request (Cell Setup Request), the cell re-configuration request of putting (CellReconfiguration Request) message in the sub-district, promptly specify the affiliated HSDPA carrier resource pond of frequency (UARFCN).Schematically as follows shown in the table 4:
Table 4:
| UARFCN (appointment frequency) |
| HSDPA Carrier Resource Pool ID (HSDPA carrier resource pond identification number) |
3. in Local Cell Information (home cell information) field of audit response (Audit Response) message, increase HSDPA carrier resource pond information, comprise its identification number and ability thereof; In CellInformation (cell information) field, increase the resource status and the upstate information of HSDPA carrier resource pond information.Corresponding modify and Resource Status Indication classes of messages seemingly are not described in detail at this.By Audit Response message, Node B can report RNC with the HSDPA carrier resource pond relevant information of sub-district.
4. the public-measurement type to " HS-DSCH Provided Bit Rate " (high-speed downlink shared channel transmission rate) redefines, and makes it can distinguish different HSDPA carrier resources pond.That is to say, one or more carrier resources pond is arranged in each sub-district, therefore in the time need carrying out the measurement of HS-DSCH transmission rate, need to specify its affiliated carrier resource pond, so that measure accordingly for multi-frequency-point community.
The definition of " HS-DSCH Provided Bit Rate ": to the multi-carrier HSDPA system, each priority under each HSDPA carrier resource pond, in last measuring period, the measured Node B MAC-hs of MAC-hs (MAC-hs refers to handle the MAC entity of HS-DSCH) entity thinks that total bit number of MAC-d (handling the MAC entity of the dedicated transmission channel) PDU (protocol Data Unit) that sends in the success of eating dishes without rice or wine is divided by measuring period.
5. when specifying the public-measurement object in public-measurement initialization request (the Common Measurement Initiation Request) message, the measurement to " HS-DSCH Provided Bit Rate " also needs the designated carrier resource pool.Therefore in this message, increase carrier resource pond identification number, schematically as follows shown in the table 5:
Table 5:
| CHOICE Common Measurement Object Type (the public-measurement object type of selection) |
| Cell (sub-district) |
| C-ID (Cell Identity CI) |
| Time Slot (time slot) |
| Time Slot LCR (time slot hangs down spreading rate) |
| HSDPA Carrier Resource Pool ID (HSDPA carrier resource pond identification number) |
By above-mentioned amended NBAP message, RNC can obtain HSDPA carrier resource pond situation in the multi-frequency-point community, and carries out more accurate, more rational RRM thus.
In order to make those skilled in the art person understand the present invention program better, the present invention is described in further detail below in conjunction with drawings and embodiments.
With reference to Fig. 1, Fig. 1 is the realization flow figure of the inventive method, may further comprise the steps:
Step 101: the base station to this sub-district multi-carrier HSDPA dispatching, is configured to one or more according to the base station for each cell configuration carrier resource pond of supporting high-speed downlink packet access HSDPA.
HSDPA carrier resource pond among the present invention is meant that in a multi-frequency-point community HSDPA carrier resource that Node B can unify scheduling all is classified as a HSDPA carrier resource pond, and the resource in different HSDPA carrier resources pond can not be by unified scheduling.The unified scheduling of so-called carrier wave, be meant that the base station is when distributing the interface-free resources of HSDPA transfer of data for UE, selection when the carrier wave in HSDPA carrier resource pond can be as base station scheduling, base station distribute a plurality of carrier resources in this HSDPA carrier resource pond can for certain UE simultaneously.
Be respectively each HSDPA carrier resource pond and set an identification number, can be in home cell/sub-district a HSDPA carrier resource of unique identification pond, but also have the attribute of this resource pool ability of expression, the carrier number that can unify to dispatch.A multi-frequency-point community can have one or more HSDPA carrier resource pond.Implicit its in single-frequency point sub-district has only a HSDPA carrier resource pond, and the carrier number that HSDPA carrier resource pond can be unified to dispatch is 1.
For example, two sub-districts are arranged, its carrier resource pond, each carrier resource pond can unify the scheduling carrier number as shown in table 6 below:
Table 6:
| Sub-district 0 | HSDPA carrier resource pond 0 | Frequency 00 |
| HSDPA carrier resource pond 1 | Frequency 01 | |
| HSDPA carrier resource pond 2 | Frequency 02 | |
| HSDPA carrier resource pond 3 | Frequency 03 | |
| HSDPA carrier resource pond 4 | Frequency 04 | |
| HSDPA | Frequency 05 | |
| Sub-district 1 | HSDPA carrier resource pond 0 | Frequency 10 |
| | ||
| | ||
| HSDPA carrier resource pond 1 | | |
| Frequency 14 | ||
| Frequency 15 |
Step 102: the base station reports radio network controller (RNC) with the carrier resource pond information that it has.
When the home cell with HSDPA ability becomes existence; Perhaps the HSDPA ability of home cell changes; When perhaps HS-DSCH (high speed descending sharing channel) related resource mode of operation changes, Node B need send resource status Indication message Resource Status Indication to RNC, and the base station is by resource status Indication message Resource Status Indication.By the modification to the resource status Indication message recited above, in the home cell information of resource status Indication message and cell information field, increase carrier resource pond information; Then, the resource status Indication message that will comprise described carrier resource pond information sends to RNC.
Receive the audit request message AUDIT REQUEST of RNC as Node B after, need send checking response message AUDIT RESPONSE,, reach the resource operation state of the HS-DSCH of Cell (sub-district) to the ability that RNC report home cell is supported to RNC.By the modification to checking response message Audit Response recited above, in the home cell information of checking response message and cell information field, increase carrier resource pond information, then, the checking response message that will comprise described carrier resource pond information sends to RNC.
Carrier resource pond information comprises: carrier resource pond sign, the carrier number of support, mode of operation and upstate information.
Step 103:RNC sets up the HSDPA carrier resource pond that request message is given base station designated carrier correspondence by the sub-district; Put request message by cell re-configuration and revise its corresponding relation.
When RNC receives after the indication home cell has been ready in the resource status Indication message that the base station reports, RNC sets up request message indication base station by the sub-district and sets up the sub-district, can specify the carrier resource pond of each carrier wave correspondence in this message.When needs carried out the local resource adjustment, RNC can put the corresponding relation that request message is revised carrier resource pond and carrier wave by cell re-configuration.
Step 104: when subscriber equipment inserted, RNC distributed the also carrier resource of management system according to the HSDPA multi-carrier capability of described carrier resource pond information and the support of described subscriber equipment.
Further specify the present invention below with reference to NBAP message interaction process between RNC shown in Figure 2 and Node B.
1.Node B sends the resource status Indication message to RNC, by this message, RNC obtains the HSDPA carrier resource pond relevant information of Node B.
For example, report the HSDPA carrier resource pond information of Local Cell 0 as shown in table 7 below at Resource Status Indication message Node B:
Table 7:
| /*partly omitted*/ | |
| >>Local Cell Information | |
| >>>Local Cell ID | 0 |
| >>>HSDPA Capability | HSDPA Capable |
| /*partly omitted*/ | |
| >>>HSDPA Carrier Resource Pool Information LCR | (2 HSDPA resource pools are arranged) |
| >>>>HSDPA Carrier Resource Pool ID | 0 |
| >>>>HSDPA Carrier Resource Pool Capability | 1 |
| >>>>HSDPA Carrier Resource Pool ID | l |
| >>>>HSDPA Carrier Resource Pool Capability | 3 |
| /*partly omitted*/ |
RNC can know that Local Cell 0 (home cell 0) has two HSDPA carrier resource ponds like this, and wherein 1 carrier wave is supported in HSDP carrier resource pond 0, and 3 carrier waves are supported in HSDPA carrier resource pond 1.
2.RNC by the corresponding relation in Cell Setup Request message informing Node B correlated carrier wave and HSDPA carrier resource pond, RNC can control the binding relationship of each carrier wave.Like this, if a plurality of carrier waves that require binding to use are continuous, RNC can be with continuous a plurality of frequency point allocation in the HSDPA carrier resource pond that possesses respective capabilities.
For example, after the Resource Status Indication message of RNC shown on receive, as shown in table 8 below to Cell Setup Request message (partial content) configuration that NodeB sends out:
Table 8:
| /*partly omitted*/ | |
| Local Cell ID | 0 |
| C-ID | 0 |
| /*partly omitted*/ | |
| UARFCN | F0 (main carrier frequency) |
| HSDPA Carrier Resource Pool ID | 0 |
| /*partly omitted*/ | |
| UARFCN Information LCR | (3 shop carrier frequency are arranged) |
| >UARFCN | f1 |
| >HSDPA Carrier Resource Pool ID | 1 |
| /*partly omitted*/ | |
| >UARFCN | f2 |
| >HSDPA Carrier Resource Pool ID | 1 |
| /*partly omitted*/ | |
| >UARFCN | f3 |
| >HSDPA Carrier Resource Pool ID | 1 |
| /*partly omitted*/ |
Like this, RNC just is configured to main carrier frequency f0 on the HSDPA carrier resource pond 0, and minor carrier f1, f2, f3 are configured on the HSDPA carrier resource pond 1.Carrier wave f0 resource can only be dispatched separately under this sub-district, and carrier wave f1, f2, f3 resource can be unified scheduling.
3.Node B responds Cell Setup Response message to RNC.
4.RNC send Common Transport Channel Setup Request (Common transport channel is set up request) message to Node B.
5.Node B responds Common Transport Channel Setup Response (Common transport channel is set up response) message to RNC.
6.RNC distribute the relevant physical channel resources of HSDPA by Physical Shared Channel Reconfiguration Request (the capable reconfiguration request of Physical Shared Channel) message.
7.Node B responds Physical Shared Channel Reconfiguration Response (Physical Shared Channel capable reshuffle response) message to RNC.
8. when needs were measured the HS-DSCH transmission rate, RNC sent CommonMeasurement Initiation Request (public-measurement initialization request) message to Node B, comprises carrier resource pond information in this message.
9.Node B responds Common Measurement Initiation Response (public-measurement initialization response) message to RNC.
10.Node B measures corresponding carrier wave according to the carrier resource pond information of indicating in the Common Measurement Initiation Request message, and sends Common MeasurementReport (public-measurement report) to RNC.
11. when user (UE) inserted, RNC sent Radio Link Setup Request (Radio Link is set up request) message to Node B.
According to previously described process, RNC has obtained the multi-frequency-point community HSDPA carrier resource pond information controlled, when the user inserts, supports the HSDPA multi-carrier capability according to resulting UE again, just can carry out accurately rational RRM and distribution.
12.Node B responds Radio Link Setup Response (Radio Link is set up response) message to RNC.
13. when RNC need be with Node B synchronous logic resource status, RNC sent AuditRequest (audit request) message to Node B.
14.Node B responds Audit Response (audit response) message to RNC, in this message, comprises the carrier resource pond information of Node B.
15. when needs are readjusted the sub-district related resource, RNC sends CellReconfiguration Request (the cell re-configuration request of putting) message to Node B, in this message, RNC can reassign the corresponding relation in each frequency and carrier resource pond, promptly specifies the affiliated carrier resource pond of frequency.
16.Node B responds Cell Reconfiguration Response (cell re-configuration is put response) message to RNC.
With the sub-district of setting up above is example, and two HSDPA carrier resource ponds are arranged under this sub-district, wherein has only a carrier wave f0 on the HSDPA carrier resource pond 0, and three carrier wave f1, f2, f3 are arranged on the HSDPA carrier resource pond 1.
The user who supposes current access supports three carrier HSDPAs, the RNC RRM can at first be selected the resource on the HSDPA carrier resource pond 1, after judging that resource satisfies condition, RNC can be chosen in the DPCH that follows of this UE on the frequency in the HSDPA carrier resource pond 1.Like this, Node B just can distribute the resource of three carrier waves (f1, f2, f3) simultaneously when being this UE scheduling resource, make this UE enjoy the high-speed down data service of multicarrier.
And if the RNC RRM does not obtain HSDPA carrier resource pond information, so when following DPCH for this UE distribution, will compare blindly, if chosen on the carrier wave f0, the result is exactly: UE has the ability of supporting three carrier HSDPAs, and network side also has corresponding resource (f1, f2, f3), and this UE can only use the resource of a carrier wave (f0), and can not use three carrier waves (f1, f2, f3) resource simultaneously, therefore can not get higher downstream rate.
Though described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, wish that appended claim comprises these distortion and variation and do not break away from spirit of the present invention.
Claims (10)
1, a kind of method of managing Radio Resource in the multi-carrier-wave high-speed down-link grouped accessing system is characterized in that, described method comprises step:
The cell configuration carrier resource pond of high-speed downlink packet access HSDPA is supported for each in A, base station;
B, base station report radio network controller (RNC) with the carrier resource pond information that it has;
C, when subscriber equipment inserts, the HSDPA multi-carrier capability that RNC supports according to described carrier resource pond information and described subscriber equipment is distributed and is managed described system resource.
2, method according to claim 1 is characterized in that, described method also comprises step:
RNC sets up request message indication base station by the sub-district and sets up the sub-district, can specify the carrier resource pond of each carrier wave correspondence in this message;
RNC can put the corresponding relation that request message is revised carrier resource pond and carrier wave by cell re-configuration.
3, method according to claim 1 and 2 is characterized in that, described step B is specially:
B 1, become existence when home cell with HSDPA ability; Perhaps the HSDPA ability of home cell changes; When perhaps high speed downlink shared channel HS-DSCH related resource mode of operation changed, the base station reported radio network controller (RNC) by the resource status Indication message with the carrier resource pond information that it has.
4, method according to claim 3 is characterized in that, described step B1 comprises:
In the home cell information of described resource status Indication message and cell information field, increase described carrier resource pond information;
The resource status Indication message that the base station will comprise described carrier resource pond information sends to RNC.
5, method according to claim 1 and 2 is characterized in that, described step B is specially:
B2, when the base station receive control RNC audit request AUDIT REQUEST message the time, the base station reports radio network controller (RNC) by checking response message with the carrier resource pond information that it has.
6, method according to claim 5 is characterized in that, described step B2 comprises:
In the home cell information of described checking response message and cell information field, increase described carrier resource pond information;
The checking response message that will comprise described carrier resource pond information sends to RNC.
7, method according to claim 1 is characterized in that, described carrier resource pond information comprises: carrier resource pond sign, the carrier number of support, mode of operation and upstate information.
8, method according to claim 1 is characterized in that, the carrier wave in the same carrier resource of the unified scheduling pond, base station.
9, method according to claim 1 and 2 is characterized in that, described method also comprises step:
D, when needs carry out the measurement of high-speed downlink shared channel HS-DSCH transmission rate, specify the carrier resource pond under it.
10, method according to claim 9 is characterized in that, described step D comprises:
In public-measurement initialization request message, increase described carrier resource pond information;
The public-measurement initialization request message that RNC will comprise described carrier resource pond information sends to the base station.
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