CN104219715A - Control method and device - Google Patents
Control method and device Download PDFInfo
- Publication number
- CN104219715A CN104219715A CN201310213294.1A CN201310213294A CN104219715A CN 104219715 A CN104219715 A CN 104219715A CN 201310213294 A CN201310213294 A CN 201310213294A CN 104219715 A CN104219715 A CN 104219715A
- Authority
- CN
- China
- Prior art keywords
- lpn
- coverage
- macro station
- access
- current
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention provides a control method and device for controlling the working state of a low power node (LPN) in a heterogeneous network. The method comprises the following steps: when no user equipment (UE) accesses to the LPN at present, detecting whether first UE exists in the coverage of the LPN or not, wherein the first UE is any UE in UE which accesses to a macro station at present; and if the first UE exists in the coverage of the LPN, controlling the LPN to be in a working mode. According to the control method and device provided by the invention, a technical scheme of detecting whether the first UE which is in the coverage of the LPN exists in user equipment which accesses the macro station at present if no user equipment accesses to the LPN at present and controlling the LPN to be in the working mode if the first UE which is in the coverage of the LPN exists in the user equipment is adopted in order to realize effective control of the current working state of the LPN, so that communication failure is avoided.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of control method and device.
Background technology
Along with popularizing of smart mobile phone, the demand of mobile subscriber to mobile data services presents high speed development situation.Existing heterogeneous network (Heterogeneous Networks, be called for short HetNet) can realize the terminal switch of access macro station in running order low power nodes (Low Power Node, be called for short LPN), carry out the transmission of upward signal and downstream signal, thus reduce macro station load.
In actual applications, be deployed with the region of LPN, may be no man's land in a certain period, and focus telephone traffic region may be become in another period, such as, city central square etc.At this moment with regard to needing, the operating state of LPN is controlled accordingly.But also not to the method that the operating state of LPN control effectively in existing scheme, this just may cause the generation of communication failure.Such as, when the region that certain is deployed with LPN becomes focus telephone traffic region from no man's land, if described LPN is now still in non-operating mode, then the communication failure of this district's intra domain user may be caused.
Summary of the invention
The invention provides a kind of control method and device, cannot control effectively and cause the problem of communication failure the operating state of low power nodes (Low Power Node is called for short LPN) for solving in prior art.
First aspect, the invention provides a kind of control method, and for controlling the operating state of low power nodes LPN in heterogeneous network, described heterogeneous network comprises: macro station and LPN, comprising:
When described LPN is current do not have user equipment (UE) to access time, whether there is a UE in the coverage detecting described LPN, wherein, a described UE is the arbitrary UE in the UE of the described macro station of current access; If there is a described UE in the coverage of described LPN, then control described LPN and be in mode of operation.
According to first aspect, in the first embodiment of first aspect, the described LPN of described control also comprises after being in mode of operation: start timer; If described timer expires, and when described timer expires, there is UE to access described LPN, then restart described timer.
According to the first embodiment of first aspect, in the second embodiment of first aspect, after described startup timer, also comprise: if described timer expires, and when described timer expires, do not have UE to access described LPN, then whether there is the step of a described UE in the coverage again performing the described LPN of described detection; If exist, then restart described timer; If do not exist, then control described LPN and enter non-operating mode.
According to first aspect, in the third embodiment of first aspect, after whether there is a UE in the coverage of the described LPN of described detection, also comprise: if there is not a described UE in the coverage of described LPN, then control described LPN and be in non-operating mode.
One of embodiment is planted according to first three of first aspect or first aspect, in the 4th kind of embodiment of first aspect, whether there is a UE in the coverage of the described LPN of described detection, comprising: the current location information being obtained the UE of described current access macro station by wireless access technology; Determine the coverage of described LPN; According to the current location information of UE and the coverage of described LPN of described current access macro station, in the coverage judging described LPN, whether there is a described UE.
One of embodiment is planted according to first three of first aspect or first aspect, in the 5th kind of embodiment of first aspect, a UE whether is there is in the coverage of the described LPN of described detection, comprise: the first intensity level obtaining the upward signal of the relatively described macro station of UE of described current access macro station, and the second intensity level of the upward signal of the relatively described LPN of UE of described current access macro station; Described second intensity level is deducted described first intensity level, obtains uplink signal strength difference; If described uplink signal strength difference is greater than default threshold value, then there is a described UE in the coverage judging described LPN; If described uplink signal strength difference is less than or equal to described threshold value, then judge in described LPN coverage, to there is not a described UE; Wherein, described threshold value obtains according to the difference of the maximum transmit power of described macro station and the maximum transmit power of described LPN.
Second aspect, the invention provides a kind of control device, and for controlling the operating state of low power nodes LPN in heterogeneous network, described heterogeneous network comprises: macro station and LPN, comprising:
Processing module, for when described LPN is current do not have user equipment (UE) to access time, whether there is a UE in the coverage detecting described LPN, wherein, a described UE is the arbitrary UE in the UE of the described macro station of current access; Control module, if there is a described UE in the coverage for described LPN, then controls described LPN and is in mode of operation.
According to second aspect, in the first embodiment of second aspect, described device also comprises: time block, for starting timer; Described control module, if also expire for described timer, and when described timer expires, has UE to access described LPN, then indicates described time block to restart described timer.
According to the first embodiment of second aspect, in the second embodiment of second aspect, described processing module, if also expire for described timer, and when described timer expires, do not have UE to access described LPN, then whether there is the step of a described UE in the coverage again performing the described LPN of described detection; Described control module, if also for existing, then indicate described time block to restart described timer; If do not exist, then control described LPN and enter non-operating mode.
According to second aspect, in the third embodiment of second aspect, described control module, if also for there is not a described UE in the coverage of described LPN, then control described LPN and be in non-operating mode.
One of embodiment is planted according to first three of second aspect or second aspect, in the 4th kind of embodiment of second aspect, described processing module comprises: the first acquiring unit, if access described LPN for the current UE of not having, then obtained the current location information of a described UE by wireless access technology; Second acquisition unit, also for determining the coverage of described LPN; Whether the first detecting unit, for according to the described current location information of a UE and the coverage of described LPN, exist a described UE in the coverage judging described LPN.
One of embodiment is planted according to first three of second aspect or second aspect, in the 5th kind of embodiment of second aspect, described processing module comprises: the 3rd acquiring unit, if access described LPN for the current UE of not having, then obtain the first intensity level of the upward signal of the relatively described macro station of UE of described current access macro station, and the second intensity level of the upward signal of the relatively described LPN of UE of described current access macro station; 4th acquiring unit, for described second intensity level is deducted described first intensity level, obtains uplink signal strength difference; , if be greater than default threshold value for described uplink signal strength difference, then there is a described UE in the coverage judging described LPN in the second detecting unit; If described uplink signal strength difference is less than or equal to described threshold value, then judge in described LPN coverage, to there is not a described UE; Wherein, described threshold value obtains according to the difference of the maximum transmit power of described macro station and the maximum transmit power of described LPN.
Control method provided by the invention and device, if there is no subscriber equipment (User Equipment by current, be called for short UE) access LPN, then detect in the UE of current access macro station the UE whether existing and be in LPN coverage, if exist, then control the technical scheme that described LPN is in mode of operation, realize controling effectively to the current operating state of LPN, thus avoid communication failure.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The schematic flow sheet of a kind of control method that Fig. 1 provides for the embodiment of the present invention one;
The schematic flow sheet of a kind of control method that Fig. 2 provides for the embodiment of the present invention two;
The schematic flow sheet of a kind of control method that Fig. 3 provides for the embodiment of the present invention three;
The schematic flow sheet of a kind of control method that Fig. 4 provides for the embodiment of the present invention four;
The schematic flow sheet of a kind of control method that Fig. 5 provides for the embodiment of the present invention five;
The structural representation of a kind of control device that Fig. 6 provides for the embodiment of the present invention six;
The structural representation of a kind of control device that Fig. 7 provides for the embodiment of the present invention seven.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The schematic flow sheet of a kind of control method that Fig. 1 provides for the embodiment of the present invention one, described method is for controlling the operating state of low power nodes in heterogeneous network (Low Power Node is called for short LPN), and described heterogeneous network comprises: macro station and LPN, as shown in Figure 1, described method comprises:
101, when described LPN is current do not have subscriber equipment (User Equipment, be called for short UE) to access time, whether there is a UE in the coverage detecting described LPN, wherein, a described UE is the arbitrary UE in the UE of the described macro station of current access;
If there is a described UE in the coverage of 102 described LPN, then control described LPN and be in mode of operation.
Wherein, described LPN is in the coverage of described macro station.The executive agent of the present embodiment can be control device, described LPN or radio network controller (Radio Network Controller is called for short RNC), and wherein, described control device can be arranged in described LPN or RNC.Concrete, when described LPN is in mode of operation, described LPN provides the service comprising the upward signal sending descending common signal and receiving terminal transmission to terminal; When described LPN is in non-operating mode, described LPN does not provide the service of the upward signal sending descending common signal and receiving terminal transmission to terminal, closes different from usually said LPN, and LPN closes the power supply referring to and close LPN.Such as, when LPN is in non-operating mode, still can obtain uplink signal strength and the positional information of terminal.
Concrete, when executive agent is described LPN, then whether current have terminal to access described LPN, can carry out detection determine by the equipment of itself of described LPN; When executive agent is RNC, whether then current have terminal to access described LPN, specifically can send inquiry request by described RNC to described LPN, and receive the Query Result returned after described LPN detects according to inquiry request, determine currently whether have terminal to access described LPN.
Optionally, when executive agent is described RNC, 102 can comprise:
If there is a described UE in the coverage of described LPN, then described RNC sends mode of operation control command to described LPN, is in non-operating mode to make described LPN.
Optionally, when executive agent is described RNC, 102 specifically can comprise:
If there is a described UE in the coverage of described LPN, then described RNC obtains the current state of described LPN;
If described LPN is current be in mode of operation, then described RNC sends state hold instruction to described LPN, keeps current state to make described LPN.
Optionally, after described RNC obtains the current state of described LPN, can also comprise:
If described LPN is current be in non-operating mode, then described RNC sends mode of operation control command to described LPN, enters mode of operation to make described LPN.
Optionally, when executive agent is described LPN, 102 can comprise:
If there is a described UE in the coverage of described LPN, then described LPN controls equipment of itself and is in mode of operation.
Optionally, when executive agent is described LPN, 102 specifically can comprise:
If there is a described UE in the coverage of described LPN, then described LPN detects the current state of equipment of itself;
If described LPN is current be in mode of operation, then described LPN controls equipment of itself maintenance current state.
Optionally, described LPN can also comprise after detecting the current state of equipment of itself:
If described LPN is current be in non-operating mode, then described LPN controls equipment of itself and enters mode of operation.
Optionally, can also comprise after 101:
If there is not a described UE in the coverage of described LPN, then control described LPN and be in non-operating mode.
By present embodiment, effectively can reduce the interference that the Signal transmissions of LPN to the terminal of the contiguous macro station of access causes, and reduce the equipment power dissipation of LPN self generation
Concrete, after the described LPN of described control is in non-operating mode, execution 101 can be returned.
Optionally, when executive agent is described RNC, then the described LPN of described control is in non-operating mode and specifically can comprises:
If there is not a described UE in the coverage of described LPN, then described RNC sends working state control instruction to described LPN, is in non-operating mode to make described LPN.
Optionally, when executive agent is described RNC, the described LPN of described control is in non-operating mode and specifically can comprises:
If there is not a described UE in the coverage of described LPN, then described RNC obtains the current state of described LPN;
If described LPN is current be in non-operating mode, then described RNC sends state hold instruction to described LPN, keeps current state to make described LPN.
Optionally, after described RNC obtains the current state of described LPN, can also comprise:
If described LPN is current in running order, then described RNC sends non-operating mode control command to described LPN, enters non-operating mode to make described LPN.
Concrete, when executive agent is described LPN, the described LPN of described control is in non-operating mode and can comprises:
If there is not a described UE in the coverage of described LPN, then described LPN controls equipment of itself and is in non-operating mode.
Optionally, when executive agent is described LPN, the described LPN of described control is in non-operating mode and specifically can comprises:
If there is not a described UE in the coverage of described LPN, then described LPN detects the current state of equipment of itself;
If described LPN is current be in non-operating mode, then described LPN controls equipment of itself maintenance current state.
Optionally, described LPN can also comprise after detecting the current state of equipment of itself:
If described LPN is current be in mode of operation, then described LPN controls equipment of itself and enters non-operating mode.
The control method that the present embodiment provides, if do not have UE to access LPN by current, then detect in the UE of current access macro station the UE whether existing and be in LPN coverage, if exist, then control the technical scheme that described LPN is in mode of operation, realize controling effectively to the current state of LPN, thus avoid communication failure.
The schematic flow sheet of a kind of control method that Fig. 2 provides for the embodiment of the present invention two, as shown in Figure 2, according to the described control method of embodiment one, if there is a described UE in the coverage of described LPN, then described method can also comprise:
201, timer is started.
Wherein, the executive agent of the present embodiment and aftermentioned any embodiment can be described LPN or described RNC.Concrete, 201 can perform 102 after, or perform with 102 simultaneously, and what provide in figure is wherein a kind of concrete execution mode, and is not limited.
Particularly, the timing cycle of described timer can set as required, and such as, the timing cycle setting described timer is 100 seconds, and the present embodiment is not limited at this.
If 202 described timers expire, and when described timer expires, there is UE to access described LPN, then restart described timer.
Optionally, after 201, described method can also comprise:
If 203 described timers expire, and when described timer expires, do not have UE to access described LPN, then whether there is the step of a described UE in the coverage again performing the described LPN of described detection; .
Optionally, after 203, can also comprise:
If 204 exist, then restart described timer; If do not exist, then control described LPN and enter non-operating mode.
That is, in the terminal current access macro station being detected, there is be in LPN coverage terminal, and control after described LPN is in mode of operation, opening timing device, and before the timer expires, keep described LPN to be in mode of operation.When the timer has lapsed, a kind of scene is, if the current UE of having accesses described LPN, then restarts timer, is appreciated that described LPN will keep mode of operation, namely realizes controlling described LPN and is in mode of operation; Another kind of scene does not have terminal to access described LPN, then whether there is the step of a described UE in the coverage again performing the described LPN of described detection, if exist, then restart described timer, keep current state to make described LPN; Otherwise, control described LPN and enter non-operating mode.It should be noted that, when the timer has lapsed, if do not restart described timer, then described timer stops timing.
Present embodiment is passed through, after control LPN is in mode of operation, opening timing device, and when timer expires, currently do not have UE to access LPN if again perform, then whether there is the technical scheme of a described UE in the coverage detecting described LPN, effectively avoiding when there is no UE access LPN, if the UE of an access macro station frequently passes in and out inside and outside the coverage border of LPN, cause the frequent switching of LPN between mode of operation and non-operating mode.
The control method that the present embodiment provides, if do not have terminal to access LPN by current, then detect the terminal whether existing in the terminal of current access macro station and be in described LPN coverage, and described LPN is in the coverage of described macro station, if exist, then control the technical scheme that described LPN is in running order, realizing effective interference reducing the Signal transmissions of LPN to the terminal of the contiguous macro station of access and cause, and while reducing the equipment power dissipation of LPN self generation, avoid, because LPN is not in running order, causing user cannot access described LPN.
The schematic flow sheet of the control method that Fig. 3 provides for the embodiment of the present invention three, as shown in Figure 3, the control method according to embodiment one or embodiment two, 101 specifically can comprise:
301, the current location information of a described UE is obtained by wireless access technology;
302, the coverage of described LPN is determined;
303, according to the described current location information of a UE and the coverage of described LPN, in the coverage judging described LPN, whether there is a described UE.
Wherein, the executive agent of the present embodiment can be RNC, described LPN or described macro station.Concrete, the form of positional information described in the present embodiment can be geographical coordinate.Described wireless access technology includes but not limited to, Wi-Fi technology, global positioning system (Global Positioning System is called for short GPS) technology and bluetooth Bluetooth technology.
Optionally, in an embodiment of the present embodiment, 302 specifically can comprise:
Obtain the positional information of described LPN;
Centered by the position of described LPN, determine the coverage of described LPN according to the radius value preset.
Accordingly, in the present embodiment, 303 specifically can comprise:
According to the current location information of UE and the positional information of described LPN of described current access macro station, calculate the distance between the UE of described current access macro station and described LPN;
Whether the distance detected between the UE of described current access macro station and described LPN is greater than described radius value, if be greater than, then the UE of described current access macro station is not in the coverage of described LPN, otherwise the UE of described current access macro station is in the coverage of described LPN.
Wherein, described radius value can be determined according to the network planning of reality, and such as, according to the position of described LPN relative to described macro station and the maximum transmit power of described LPN, determine that described radius value is 100 meters, the present embodiment is not limited at this.
Optionally, the positional information of the described LPN of described acquisition, specifically can comprise: the positional information obtaining the described LPN prestored.Concrete, in actual applications, the base station equipments such as described LPN and macro station are after planning Network Based is built up, and its position is generally changeless, therefore can prestore the positional information of described LPN.
Present embodiment is using the position of LPN as center, the coverage of described LPN is determined according to the radius value preset, thus according to the Distance geometry between described LPN and the UE of current access macro station radius value, whether there is a described UE in the coverage determining LPN quickly and easily.
Optionally, in the another kind of execution mode of the present embodiment, 302 specifically can comprise:
The positional information of the multiple descending balance point of described LPN is obtained by field survey, according to the positional information of described multiple descending balance point, obtain the function that described multiple descending balance point is corresponding, determine the border of the coverage of described LPN, thus determine the coverage of described LPN.
Wherein, when UE is in position corresponding to arbitrary described descending balance point, the downstream signal intensity of the described LPN that the downstream signal intensity of the described macro station that described UE receives and described UE receive is equal.
Optionally, in present embodiment or aforesaid execution mode, 303 can pass through accomplished in many ways, concrete example, and 303 can comprise:
Detect the arbitrary ray being starting point with the UE of described current access macro station, whether odd number is with the intersection point number on the border of the coverage of described LPN, if, then the UE of described current access macro station is in the coverage of described LPN, otherwise the UE of described current access macro station is not in the coverage of described LPN.
Present embodiment determines the border of the coverage of described LPN by field survey, thus whether there is a described UE in the coverage realizing more accurately detecting LPN.
It should be noted that, whether the present embodiment is in the coverage of described LPN by detecting the UE of current access macro station, whether there is a described UE in the coverage determining LPN., if equipment Inspection is in the coverage of described LPN to the UE of certain access macro station current, then there is a described UE in the coverage determining described LPN in concrete example; If equipment Inspection is not all in the coverage of described LPN to all UE of current access macro station, then there is not a described UE in the coverage determining described LPN.
The control method that the present embodiment provides, if do not have terminal to access LPN by current, then obtain the current location information of the UE of described current access macro station, determine the coverage of described LPN, the technical scheme of a described UE whether is there is in the coverage detecting described LPN, realize controling effectively to the current state of LPN, thus avoid communication failure.
The schematic flow sheet of the control method that Fig. 4 provides for the embodiment of the present invention four, as shown in Figure 4, whether the control method according to embodiment one or embodiment two, exist a UE in the coverage detecting described LPN and specifically can comprise described in 101:
401, the first intensity level of the upward signal of the relatively described macro station of UE of described current access macro station is obtained, and the second intensity level of the upward signal of the relatively described LPN of UE of described current access macro station;
402, described second intensity level is deducted described first intensity level, obtain uplink signal strength difference;
If 403 described uplink signal strength differences are greater than default threshold value, then there is a described UE in the coverage judging described LPN;
If 404 described uplink signal strength differences are less than or equal to described threshold value, then judge in described LPN coverage, to there is not a described UE.
Wherein, described threshold value obtains according to the difference of the maximum transmit power of described macro station and the maximum transmit power of described LPN.
It should be noted that, whether the present embodiment is in the coverage of described LPN by the UE detecting current access macro station equally, whether there is a UE in the coverage detecting described LPN, its detailed process is similar to the related content in embodiment three, and the present embodiment does not repeat them here.
Optionally, in an embodiment of the present embodiment, the executive agent of above-mentioned steps can be RNC, then 401 specifically can comprise:
RNC sends first information inquiry request to described macro station, to make described macro station according to the channel information of the UE of the described current access macro station of described first information inquiry request acquisition and described first intensity level;
Described RNC receives the first information inquiry response that described macro station returns, and described first information inquiry response comprises the channel information of the UE of described current access macro station and described first intensity level;
Described RNC sends second information inquiring request of carrying the channel information of the UE of described current access macro station to described LPN, obtain described second intensity level to indicate described LPN according to the channel information of the UE of described current access macro station;
Described RNC receives the second information inquiry response that described LPN returns, and described second information inquiry response comprises described second intensity level.
Optionally, in the another kind of execution mode of the present embodiment, the executive agent of above-mentioned steps can also be described LPN, then the first intensity level obtaining the upward signal of the relatively described macro station of UE of described current access macro station described in 401 specifically can comprise:
Described LPN sends the 3rd information inquiring request to described macro station, obtains described first intensity level to make described macro station according to described 3rd information inquiring request;
Described LPN receives the 3rd information inquiry response that described macro station returns, and described 3rd information inquiry response comprises described first intensity level.
Wherein, the concrete form of described first intensity level and described second intensity level can be decibel value.The concrete grammar of described LPN described first intensity level of acquisition and described second intensity level can by the accomplished in many ways in the communications field, and the present embodiment is no longer specifically set forth at this.
Wherein, the concrete form of the maximum transmit power of described macro station and the maximum transmit power of described LPN also can be decibel value, and the maximum transmit power of the maximum transmit power of described macro station and described LPN can be determined according to the running parameter of described macro station and described LPN respectively, concrete example, if the maximum transmit power of described macro station is 43 dBms (being called for short dBm), the maximum transmit power of described LPN is 37dBm, then described threshold value is 6dBm.
Optionally, according to the difference of the maximum transmit power of described macro station and the maximum transmit power of described LPN, obtaining described threshold value can comprise:
Using the difference of the maximum transmit power of the maximum transmit power of described macro station and described LPN as described threshold value; Or,
The maximum transmit power of described macro station is added with the adjusted value preset with the difference of the maximum transmit power of described LPN, obtains described threshold value.
Concrete example, if the maximum transmit power of described macro station is 43 dBms (being called for short dBm), the maximum transmit power of described LPN is 37dBm, if adjusted value is 3dBm, then described threshold value is 6dBm; If adjusted value is-3dBm, then described threshold value is 3dBm.Present embodiment by the described adjusted value of setting, adjust, and then adjustment can be used for the coverage of the described LPN compared with uplink signal strength difference to threshold value.
The control method that the present embodiment provides, by obtaining described first intensity level and described second intensity level, and according to the technical scheme that difference and the threshold value of described first intensity level and described second intensity level compare, a UE whether is there is in the coverage determining described LPN more effectively and accurately, and then realize more effectively and accurately controling effectively to the current state of LPN, avoid communication failure.
The schematic flow sheet of a kind of control method that Fig. 5 provides for the embodiment of the present invention five, as shown in Figure 5, described method comprises:
501, when described LPN is current do not have user equipment (UE) to access time, whether there is a UE in the coverage detecting described LPN, wherein, a described UE is the arbitrary UE in the UE of the described macro station of current access;
502, the first intensity level of the upward signal of the relatively described macro station of UE of described current access macro station is obtained, and the second intensity level of the upward signal of the relatively described LPN of UE of described current access macro station;
503, according to described first intensity level, described second intensity level and threshold value, whether there is a UE in the coverage detecting described LPN, if so, then perform 505, otherwise perform 504;
504, control described LPN and be in non-operating mode, and return execution 501;
505, control described LPN and be in mode of operation, opening timing device;
506, detect described timer whether to expire, if so, then perform 507, otherwise repeat 506;
507, detect and currently whether have UE to access described LPN, if then return execution 505, otherwise return execution 501;
It should be noted that, the concrete grammar that in the present embodiment, each step performs can refer to the related content in foregoing embodiments, therefore the present embodiment does not repeat them here.
The control method that the present embodiment provides, by obtaining the difference of described first intensity level and described second intensity level, and described difference and threshold value are compared, whether there is the scheme of a UE in the coverage detecting described LPN, realize controling effectively to the current state of LPN, thus avoid communication failure.
A kind of control device that Fig. 6 provides for the embodiment of the present invention six, for controlling the operating state of low power nodes LPN in heterogeneous network, described heterogeneous network comprises: macro station and LPN, and as shown in Figure 6, described device comprises:
Processing module 61, for when described LPN is current do not have subscriber equipment (User Equipment, be called for short UE) to access time, whether there is a UE in the coverage detecting described LPN, wherein, a described UE is the arbitrary UE in the UE of the described macro station of current access;
Control module 62, if there is a described UE in the coverage for described LPN, then controls described LPN and is in mode of operation.
Optionally, control module 62, if also for there is not a described UE in the coverage of described LPN, then control described LPN and be in non-operating mode.
Optional again, in an embodiment of the present embodiment, if there is a described UE in the coverage of described LPN, then described device can also comprise:
Time block, for starting timer; Accordingly, control module 62, if also expire for described timer, and when described timer expires, has UE to access described LPN, then indicates described time block to restart described timer.
Particularly, the timing cycle of described timer can set as required.
Optionally, in the above-described embodiment, processing module 61, if also expire for described timer, and when described timer expires, do not have UE to access described LPN, then whether there is the step of a described UE in the coverage again performing the described LPN of described detection;
Accordingly, control module 62, if also for existing, then indicate described time block to restart described timer; If do not exist, then control described LPN and enter non-operating mode.
That is, when there is a described UE in the coverage that processing module 61 detects described LPN, then control module 62 controls described LPN and is in mode of operation, described time block opening timing device; Before the timer expires, described LPN is in mode of operation.When described timer expires, a kind of scene is, if the current UE of having accesses described LPN, then control module 62 indicates described time block to restart timer, is appreciated that described LPN will keep mode of operation; Another kind of scene is, if the current UE of not having accesses described LPN, then whether there is a UE in the coverage that processing module 61 detects described LPN again, if exist, then control module 62 indicates described time block to restart described timer, keeps current state to make described LPN; Otherwise control module 62 controls described LPN and enters non-operating mode.It should be noted that, when the timer has lapsed, if do not restart described timer, then described timer stops timing.
Present embodiment is passed through, if there is a described UE in the coverage of described LPN, then opening timing device, and when timer expires, not having if current terminal to access LPN, then again perform the technical scheme that whether there is a UE in the coverage detecting described LPN, effectively avoiding when not having UE to access LPN, if the UE of an access macro station frequently passes in and out inside and outside the coverage border of LPN, cause the frequent switching of LPN between mode of operation and non-operating mode.
The control device that the present embodiment provides, if do not have UE to access LPN by current, then detect in the UE of current access macro station the UE whether existing and be in LPN coverage, if exist, then control the technical scheme that described LPN is in mode of operation, realize controling effectively to the current state of LPN, thus avoid communication failure.
Optionally, in above-mentioned arbitrary execution mode, processing module 61 can comprise:
First acquiring unit, if access described LPN for the current UE of not having, then obtains the current location information of a described UE by wireless access technology;
Second acquisition unit, also for determining the coverage of described LPN;
Whether the first detecting unit, for according to the described current location information of a UE and the coverage of described LPN, exist a described UE in the coverage judging described LPN.
Optional again, in above-mentioned arbitrary execution mode, processing module 61 can comprise:
3rd acquiring unit, if access described LPN for the current UE of not having, then obtains the first intensity level of the upward signal of the relatively described macro station of UE of described current access macro station, and the second intensity level of the upward signal of the relatively described LPN of UE of described current access macro station;
4th acquiring unit, for described second intensity level is deducted described first intensity level, obtains uplink signal strength difference;
, if be greater than default threshold value for described uplink signal strength difference, then there is a described UE in the coverage judging described LPN in the second detecting unit; If described uplink signal strength difference is less than or equal to described threshold value, then judge in described LPN coverage, to there is not a described UE.
Wherein, described threshold value obtains according to the difference of the maximum transmit power of described macro station and the maximum transmit power of described LPN.
Wherein, described control device can be arranged in described LPN or RNC.
Optionally, described device can also comprise: sending module and receiver module.
Accordingly, if described control device is arranged in the rnc, then described 3rd acquiring unit, specifically may be used for indicating described sending module to send first information inquiry request to described macro station, to make described macro station according to the channel information of the UE of the described current access macro station of described first information inquiry request acquisition and described first intensity level;
Described receiver module, for receiving and transmitting to described 4th acquiring unit the first information inquiry response that described macro station returns, described first information inquiry response comprises the channel information of the UE of described current access macro station and described first intensity level;
Described 3rd acquiring unit, also can be specifically for, indicate described sending module to send second information inquiring request of carrying the channel information of the UE of described current access macro station to described LPN, obtain described second intensity level to indicate described LPN according to the channel information of the UE of described current access macro station;
Described receiver module, also for receiving and transmitting to described 4th acquiring unit the second information inquiry response that described LPN returns, described second information inquiry response comprises described second intensity level.
Optionally, if described control device is arranged in described LPN, then described 3rd acquiring unit, specifically may be used for indicating described sending module to send the 3rd information inquiring request to described macro station, obtains described first intensity level to make described macro station according to described 3rd information inquiring request;
Described receiver module, for receiving and transmitting to described 4th acquiring unit the 3rd information inquiry response that described macro station returns, described 3rd information inquiry response comprises described first intensity level.
Wherein, the concrete grammar of described macro station described first intensity level of acquisition and described second intensity level of described LPN acquisition can by the accomplished in many ways in the communications field, and the present embodiment is no longer specifically set forth at this.
The LPN control device that the present embodiment provides, by obtaining the UE of described current access macro station to described macro station and the uplink signal strength value to described LPN, and according to the technical scheme that difference and the threshold value of described two intensity levels compare, whether there is a described UE in the coverage determining described LPN more effectively and accurately, and then realize more effectively and accurately controling effectively to the current state of LPN.
The structural representation of a kind of control device that Fig. 7 provides for the embodiment of the present invention seven, as shown in Figure 7, described device comprises:
Memory 71, for depositing program.Particularly, program can comprise program code, and described program code comprises computer-managed instruction.Memory 71 may comprise high-speed RAM memory, still may comprise nonvolatile memory (non-volatile memory), such as at least one magnetic disc store.
Processor 72, the program that execute store 71 is deposited, for: when described LPN is current do not have user equipment (UE) to access time, whether there is a UE in the coverage detecting described LPN; If there is a described UE in the coverage of described LPN, then control described LPN and be in mode of operation; Wherein, a described UE is the arbitrary UE in the UE of the described macro station of current access.
Optionally, based on the program that memory 71 is deposited, processor 72, if there is a described UE in the coverage also for described LPN, then starts timer; If described timer expires, and when described timer expires, there is UE to access described LPN, then restart described timer.
Wherein, processor 72 may be a central processing unit (Central Processing Unit, referred to as CPU), or specific integrated circuit (Application Specific Integrated Circuit, referred to as ASIC), or be configured to the one or more integrated circuits implementing the embodiment of the present invention.
Optionally, based on the program that memory 71 is deposited, in above-mentioned arbitrary execution mode, processor 72, if also expire for described timer, and when described timer expires, do not have UE to access described LPN, then whether there is the step of a described UE in the coverage again performing the described LPN of described detection, if exist, then restart described timer, if do not exist, then control described LPN and enter non-operating mode.
By above-mentioned execution mode, effectively can avoiding when not having UE to access LPN, if the UE of an access macro station frequently passes in and out inside and outside the coverage border of LPN, causing the frequent switching of LPN between mode of operation and non-operating mode.
Optionally, processor 72, if also for there is not a described UE in the coverage of described LPN, then control described LPN and be in non-operating mode.
Concrete, in order to detect described LPN coverage in whether there is a described UE, optionally, based on the program that memory 71 is deposited, in above-mentioned arbitrary execution mode,
Processor 72, specifically for, if the current UE of not having accesses described LPN, then obtained the current location information of the UE of described current access macro station by wireless access technology; Determine the coverage of described LPN; According to the current location information of UE and the coverage of described LPN of described current access macro station, in the coverage judging described LPN, whether there is a described UE.
A described UE whether is there is in the coverage that can be detected described LPN by present embodiment quickly and easily.
Also for ease of detect described LPN coverage in whether there is a described UE, optionally, based on the program that memory 71 is deposited, in above-mentioned arbitrary execution mode, described device also comprises:
Communication interface 73, if access described LPN for the current UE of not having, then obtains the first intensity level of the upward signal of the relatively described macro station of UE of described current access macro station, and the second intensity level of the upward signal of the relatively described LPN of UE of described current access macro station;
Accordingly, processor 72, specifically for described first intensity level that obtains according to communication interface 73 and described second intensity level, deducts described first intensity level by described second intensity level, obtains uplink signal strength difference; If described uplink signal strength difference is greater than default threshold value, then there is a described UE in the coverage judging described LPN; If described uplink signal strength difference is less than or equal to described threshold value, then judge in described LPN coverage, to there is not a described UE; Wherein, described threshold value obtains according to the difference of the maximum transmit power of described macro station and the maximum transmit power of described LPN.
In the present embodiment, described control device can be arranged in RNC or described LPN.
Concrete, if described control device is arranged in the rnc, then communication interface 73, specifically for sending first information inquiry request to described macro station, to make described macro station according to the channel information of the UE of the described current access macro station of described first information inquiry request acquisition and described first intensity level; Receive the first information inquiry response that described macro station returns, described first information inquiry response comprises the channel information of the UE of described current access macro station and described first intensity level;
Communication interface 73, also specifically for sending second information inquiring request of carrying the channel information of the UE of described current access macro station to described LPN, obtains described second intensity level to indicate described LPN according to the channel information of the UE of described current access macro station; Communication interface 73, also specifically for receiving the second information inquiry response that described LPN returns, described second information inquiry response comprises described second intensity level.
Concrete, if described control device is arranged in described LPN, then communication interface 73, specifically for sending the 3rd information inquiring request to described macro station, obtains described first intensity level to make described macro station according to described 3rd information inquiring request; Receive the 3rd information inquiry response that described macro station returns, described 3rd information inquiry response comprises described first intensity level.
By present embodiment, whether there is a described UE in the coverage can determining described LPN more effectively and accurately, and then realize more effectively and accurately controling effectively to the current state of LPN, thus avoid communication failure.
Optionally, in specific implementation, realize if memory 71, processor 72 and communication interface 73 are independent, then memory 71, processor 72 and communication interface 73 can be interconnected by bus and complete mutual communicating.Described bus can be industry standard architecture (Industry Standard Architecture, referred to as ISA) bus, peripheral component interconnect (Peripheral Component, referred to as PCI) bus or extended industry-standard architecture (Extended Industry Standard Architecture, referred to as EISA) bus etc.Described bus can be divided into address bus, data/address bus, control bus etc.For ease of representing, only representing with a thick line in Fig. 7, but not representing the bus only having a bus or a type.
Optionally, in specific implementation, if memory 71, processor 72 and communication interface 73 is integrated realizes on one chip, then memory 71, processor 72 and communication interface 73 can complete mutual communicating by internal interface.
The control device that the present embodiment provides, if do not have subscriber equipment to access LPN by current, then detect in the subscriber equipment of current access macro station the UE whether existing and be in LPN coverage, if exist, then control the technical scheme that described LPN is in mode of operation, realize controling effectively to the current operating state of LPN, thus avoid communication failure.
Those skilled in the art can be well understood to, and for convenience and simplicity of description, the specific works process of the device of foregoing description, with reference to the corresponding process in preceding method embodiment, can not repeat them here.
One of ordinary skill in the art will appreciate that: all or part of step realizing above-mentioned each embodiment of the method can have been come by the hardware that program command is relevant.Aforesaid program can be stored in a computer read/write memory medium.This program, when performing, performs the step comprising above-mentioned each embodiment of the method; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (12)
1. a control method, for controlling the operating state of low power nodes LPN in heterogeneous network, described heterogeneous network comprises: macro station and LPN, is characterized in that, comprising:
When described LPN is current do not have user equipment (UE) to access time, whether there is a UE in the coverage detecting described LPN, wherein, a described UE is the arbitrary UE in the UE of the described macro station of current access;
If there is a described UE in the coverage of described LPN, then control described LPN and be in mode of operation.
2. method according to claim 1, is characterized in that, the described LPN of described control also comprises after being in mode of operation:
Start timer;
If described timer expires, and when described timer expires, there is UE to access described LPN, then restart described timer.
3. method according to claim 2, is characterized in that, after described startup timer, also comprises:
If described timer expires, and when described timer expires, do not have UE to access described LPN, then whether there is the step of a described UE in the coverage again performing the described LPN of described detection;
If exist, then restart described timer;
If do not exist, then control described LPN and enter non-operating mode.
4. method according to claim 1, is characterized in that, after whether there is a UE, also comprises in the coverage of the described LPN of described detection:
If there is not a described UE in the coverage of described LPN, then control described LPN and be in non-operating mode.
5. the method according to any one of claim 1-4, is characterized in that, whether there is a UE, comprising in the coverage of the described LPN of described detection:
The current location information of the UE of described current access macro station is obtained by wireless access technology;
Determine the coverage of described LPN;
According to the current location information of UE and the coverage of described LPN of described current access macro station, in the coverage judging described LPN, whether there is a described UE.
6. the method according to any one of claim 1-4, is characterized in that, whether there is a UE, comprising in the coverage of the described LPN of described detection:
Obtain the first intensity level of the upward signal of the relatively described macro station of UE of described current access macro station, and the second intensity level of the upward signal of the relatively described LPN of UE of described current access macro station;
Described second intensity level is deducted described first intensity level, obtains uplink signal strength difference;
If described uplink signal strength difference is greater than default threshold value, then there is a described UE in the coverage judging described LPN;
If described uplink signal strength difference is less than or equal to described threshold value, then judge in described LPN coverage, to there is not a described UE;
Wherein, described threshold value obtains according to the difference of the maximum transmit power of described macro station and the maximum transmit power of described LPN.
7. a control device, for controlling the operating state of low power nodes LPN in heterogeneous network, described heterogeneous network comprises: macro station and LPN, is characterized in that, comprising:
Processing module, for when described LPN is current do not have user equipment (UE) to access time, whether there is a UE in the coverage detecting described LPN, wherein, a described UE is the arbitrary UE in the UE of the described macro station of current access;
Control module, if there is a described UE in the coverage for described LPN, then controls described LPN and is in mode of operation.
8. device according to claim 7, is characterized in that, described device also comprises:
Time block, for starting timer;
Described control module, if also expire for described timer, and when described timer expires, has UE to access described LPN, then indicates described time block to restart described timer.
9. device according to claim 8, is characterized in that,
Described processing module, if also expire for described timer, and when described timer expires, does not have UE to access described LPN, then whether there is the step of a described UE in the coverage again performing the described LPN of described detection;
Described control module, if also for existing, then indicate described time block to restart described timer; If do not exist, then control described LPN and enter non-operating mode.
10. device according to claim 7, is characterized in that,
Described control module, if also for there is not a described UE in the coverage of described LPN, then control described LPN and be in non-operating mode.
11. devices according to any one of claim 7-10, it is characterized in that, described processing module comprises:
First acquiring unit, if access described LPN for the current UE of not having, then obtains the current location information of a described UE by wireless access technology;
Second acquisition unit, also for determining the coverage of described LPN;
Whether the first detecting unit, for according to the described current location information of a UE and the coverage of described LPN, exist a described UE in the coverage judging described LPN.
12. devices according to any one of claim 7-10, it is characterized in that, described processing module comprises:
3rd acquiring unit, if access described LPN for the current UE of not having, then obtains the first intensity level of the upward signal of the relatively described macro station of UE of described current access macro station, and the second intensity level of the upward signal of the relatively described LPN of UE of described current access macro station;
4th acquiring unit, for described second intensity level is deducted described first intensity level, obtains uplink signal strength difference;
, if be greater than default threshold value for described uplink signal strength difference, then there is a described UE in the coverage judging described LPN in the second detecting unit; If described uplink signal strength difference is less than or equal to described threshold value, then judge in described LPN coverage, to there is not a described UE;
Wherein, described threshold value obtains according to the difference of the maximum transmit power of described macro station and the maximum transmit power of described LPN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310213294.1A CN104219715B (en) | 2013-05-31 | 2013-05-31 | control method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310213294.1A CN104219715B (en) | 2013-05-31 | 2013-05-31 | control method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104219715A true CN104219715A (en) | 2014-12-17 |
| CN104219715B CN104219715B (en) | 2018-06-05 |
Family
ID=52100764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310213294.1A Active CN104219715B (en) | 2013-05-31 | 2013-05-31 | control method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104219715B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113891417A (en) * | 2021-10-25 | 2022-01-04 | 中国联合网络通信集团有限公司 | Path selection method, device and equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005002270A1 (en) * | 2003-06-25 | 2005-01-06 | Nec Corporation | Mobile communication system and access control method |
| CN101902788A (en) * | 2009-05-26 | 2010-12-01 | 鼎桥通信技术有限公司 | Method for enabling macro base station UE to access home base station and method for controlling interference of home base station |
| CN102045807A (en) * | 2009-10-16 | 2011-05-04 | 株式会社泛泰 | Small base station and method for controlling operation thereof |
| CN102077659A (en) * | 2008-07-02 | 2011-05-25 | 高通股份有限公司 | Low power modes for femto cells |
| CN102461267A (en) * | 2009-06-15 | 2012-05-16 | 日本电气株式会社 | Wireless communication system and wireless communication method |
| CN202799171U (en) * | 2012-07-05 | 2013-03-13 | 淮安信息职业技术学院 | System for supporting discontinuous transmission (DTX) in wireless communication system |
-
2013
- 2013-05-31 CN CN201310213294.1A patent/CN104219715B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005002270A1 (en) * | 2003-06-25 | 2005-01-06 | Nec Corporation | Mobile communication system and access control method |
| CN102077659A (en) * | 2008-07-02 | 2011-05-25 | 高通股份有限公司 | Low power modes for femto cells |
| CN101902788A (en) * | 2009-05-26 | 2010-12-01 | 鼎桥通信技术有限公司 | Method for enabling macro base station UE to access home base station and method for controlling interference of home base station |
| CN102461267A (en) * | 2009-06-15 | 2012-05-16 | 日本电气株式会社 | Wireless communication system and wireless communication method |
| CN102045807A (en) * | 2009-10-16 | 2011-05-04 | 株式会社泛泰 | Small base station and method for controlling operation thereof |
| CN202799171U (en) * | 2012-07-05 | 2013-03-13 | 淮安信息职业技术学院 | System for supporting discontinuous transmission (DTX) in wireless communication system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113891417A (en) * | 2021-10-25 | 2022-01-04 | 中国联合网络通信集团有限公司 | Path selection method, device and equipment |
| CN113891417B (en) * | 2021-10-25 | 2023-11-03 | 中国联合网络通信集团有限公司 | Path selection method, device and equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104219715B (en) | 2018-06-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112188533B (en) | Method and device for reporting network performance | |
| CN102938917B (en) | Non high-speed rail user switching method and radio network controller (RNC) | |
| CN107409292B (en) | Side link information transmission method, device and communication system | |
| JP6019233B2 (en) | Terminal access method, system, and terminal | |
| CN111556536B (en) | BWP switching method and communication device | |
| CN108377577B (en) | Method and device for recovering downlink radio link failure | |
| KR101604937B1 (en) | Base station, radio terminal, radio communication system, and radio communication method | |
| RU2742143C1 (en) | Method for configuring measurement interval and corresponding apparatus, device, terminal device and system | |
| EP3200544A1 (en) | Random access signalling sending method and apparatus | |
| KR20070081050A (en) | Methdo and system for setting tracking area in a wireless communication system | |
| JP2012519450A (en) | Method and apparatus for supporting discontinuous operation of base station in wireless communication system, and control system therefor | |
| CN103428748A (en) | Frequency band measuring method, device and system | |
| TWI746595B (en) | Communication method for device-to-device and terminal equipment | |
| WO2021017728A1 (en) | Resource selection method and terminal device | |
| CN105101280A (en) | Transmission point identifying and RRM (radio resource management) measuring method, equipment and system | |
| EP2907343A2 (en) | Method, apparatus, computer program product, computer readable medium and system for cell reselection | |
| CN107548113B (en) | Wireless service providing method and device | |
| US20160316499A1 (en) | Identification of a broadband connection | |
| CN104219715A (en) | Control method and device | |
| US9736811B1 (en) | Determining a customized paging area | |
| JP5136783B2 (en) | Dead zone detection method and apparatus in wireless communication system | |
| CN104349428A (en) | A message sending method and apparatus | |
| US20210410025A1 (en) | Dynamic triggering of minimum periodic search timer | |
| CN111787584B (en) | Data acquisition method and system based on Internet of things | |
| JP6060709B2 (en) | Mobile station apparatus, radio communication system, radio communication method, and program |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210427 Address after: Unit 3401, unit a, building 6, Shenye Zhongcheng, No. 8089, Hongli West Road, Donghai community, Xiangmihu street, Futian District, Shenzhen, Guangdong 518040 Patentee after: Honor Device Co.,Ltd. Address before: 518129 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee before: HUAWEI TECHNOLOGIES Co.,Ltd. |