CN104105184A - Interference control method and device between macro base station and low frequency node - Google Patents
Interference control method and device between macro base station and low frequency node Download PDFInfo
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- CN104105184A CN104105184A CN201310115958.0A CN201310115958A CN104105184A CN 104105184 A CN104105184 A CN 104105184A CN 201310115958 A CN201310115958 A CN 201310115958A CN 104105184 A CN104105184 A CN 104105184A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
- H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
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- 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
Abstract
The invention provides an interference control method between a macro base station and a low frequency node, comprising steps of determining the user which is in an unbalance area in a macro cell, transmitting a user identifier of the macro cell user to the low power node, receiving load alarm information transmitted by the low power node, wherein the load alarm information carries the user identifier of the user of the unbalance area to be regulated and controlled, and transmitting down-regulated uplink authorization information to the macro base station, wherein the down-regulated uplink authorization information carries the user identifier of the user in the unbalance area to be regulated and controlled and the macro base station can reduce the uplink power. The invention can effectively control the interference of the unbalance area user on the low power small area user between the macro control base station and the low power node.
Description
Technical field
The present invention relates to the communications field, relate in particular to interference control method and device between a kind of macro base station and low power nodes.
Background technology
Along with the fast development of mobile broadband service, there is the application of blowout formula in the data service of various 3GPP standard intelligent terminals (mobile phone, data card, iPad etc.).This application situation directly causes hot zones data traffic to present explosive growth trend.Only be difficult to meet Data Growth demand completely by strengthening traditional macrocell performance, need to provide new Networking Solutions & provisioned at former traditional macro station network foundation.Mobile communications industry has been reached highly common recognition, by disposing with low power nodes (LPN, Lower Power Node) frequently and solve burgeoning data traffic demand in macrocell, as shown in Figure 1.LPN comprises Micro, Pico, Metro base station etc.But because dimension base station may be applied in focus or hot-zone covering, cause following multiple interference problem to occur.
Because the power output of macro base station and LPN differs greatly, and uplink receiving power difference is little, causes up covering border and descending covering border between macro base station and LPN to differ larger, has the uneven district of so-called larger up-downgoing, as shown in Figure 2.In the time that the user uplink loading demand of the descending area of coverage of LPN is higher, can be subject to the uplink interference from user in uneven district.User in the uncontrollable uneven district of LPN, causes the descending area of coverage user of LPN to be subject to uneven district user's severe jamming and to affect service feature.
As shown in Figure 3, in descending switch area between macro base station and LPN, the HSDPA user of macrocell for Serving cell, because uplink power control is subject to the control of LPN, make its HS-DPCCH uplink feedback channel power lower, channel quality CQI variation, HARQ ACK/NACK replys decoding error and HS-PDSCH number of retransmissions increases, and causes these users' the descending degradation of HSDPA.
When the ascending power of the descending area of coverage UE of LPN is larger, may disturb up the causing of macrocell, especially in macrocell, more LPN disposes user's user's access that macrocell is even blocked in up larger interference to macrocell that may cause LPN.
Summary of the invention
The invention provides interference control method and device between a kind of macro base station and low power nodes, to solve all kinds of interference problems between macro base station and the low power nodes occurring in prior art.
Embodiments of the invention provide the interference control method between a kind of macro base station and low power nodes, comprising: determine the user in non-equilibrium district in macrocell; Send macrocell user's user ID to low power nodes; Receive the load alarm information that low power nodes sends, in load alarm information, carry non-equilibrium district user's to be regulated and controled user ID; Send and lower uplink authorization message to macro base station, lower the user ID of carrying non-equilibrium district user to be regulated and controled in uplink authorization message, lower ascending power for macro base station for this user.
Determine that the step of locating the user in non-equilibrium district in macrocell comprises: the macrocell user's that the macro base station that reception macro base station sends measures ascending power; Macrocell user's uplink scrambling code and time slot format are sent to low power nodes; The macrocell user's that the low power nodes that reception low power nodes sends measures ascending power; For certain user, when the difference that the ascending power measuring when low power nodes deducts the ascending power that macro base station measures is greater than zero, determine that this user is in non-equilibrium district.
In load alarm information and downward uplink authorization message, also carry load accounting sequencing information, lower ascending power according to load accounting sequencing information for this user for macro base station.Load accounting sequencing information comprises R99 business classified information; According to load accounting, sequence is carried out uplink power control to this user R99 business.
Receive load alarm elimination message or load normal messages that low power nodes sends; Send normal uplink authorization message to macro base station.
Method also comprises: in the time that the HS-DSCH Serving cell that soft handover and user occur user is macrocell, the descending DPCCH of notice low power nodes does not send downlink power control order; In the time that the HS-DSCH Serving cell that soft handover and user occur user is low power cell, the descending DPCCH of notice low power nodes sends downlink power control order.
The embodiment of the present invention also provides the control device of the interference between a kind of macro base station and low power nodes, comprising:
User's determining unit, for determining the user of macrocell in non-equilibrium district;
Transmitting element, for sending macrocell user's user ID to low power nodes; Send and lower uplink authorization message to macro base station, lower the user ID of carrying non-equilibrium district user to be regulated and controled in uplink authorization message, lower ascending power for macro base station for this user;
Receiving element, for receiving the load alarm information of low power nodes transmission, carries non-equilibrium district user's to be regulated and controled user ID in load alarm information.
User's determining unit comprises: computing module, the ascending power that calculates the macrocell user that measures of low power nodes deducts the difference comparison module of the macrocell user's that macro base station measures ascending power, in the time that difference is greater than zero, determine that this user is in non-equilibrium district; Wherein, the macrocell user's that low power nodes measures ascending power and the macrocell user's that macro base station measures ascending power sends and is received the macrocell user's that macro base station measures ascending power by receiving element from low power nodes and macro base station respectively; Uplink scrambling code and time slot format that low power nodes is measured the required macrocell user of macrocell user's ascending power send to low power nodes to be sent by transmitting element.
In load alarm information and downward uplink authorization message, also carry load accounting sequencing information, lower ascending power according to load accounting sequencing information for this user for macro base station.
This device can also comprise control unit, and for sorting this user R99 business is carried out to uplink power control according to load accounting, load accounting sequencing information comprises R99 business classified information.
When message or load normal messages are eliminated in the load alarm that receiving element reception low power nodes sends, transmitting element sends normal uplink authorization message to macro base station.
This device can also comprise notification unit, and when there is soft handover (Soft Handover) as user and when user's HS-DSCH Serving cell is macrocell, the descending DPCCH of notice low power nodes does not send downlink power control order; In the time that soft handover (Soft Handover) occurs user and when user's HS-DSCH Serving cell is low power cell, the descending DPCCH of notice low power nodes sends downlink power control order.
The HSDPA that the embodiment of the present invention can effectively be controlled interference to low power cell user of non-equilibrium district user between macro base station and low power nodes and macrocell user is subject to the power control of low power nodes and disturbs.
Brief description of the drawings
Inventive concept of the present invention will describe in detail in conjunction with the drawings and introduce below, and wherein accompanying drawing comprises:
Fig. 1 is the deployment networking diagram of macro base station and low power base station;
Fig. 2 is the upper row bound of macro base station and low power nodes and the boundary schematic diagram of descending boundary;
Fig. 3 is administration's networking diagram that low power nodes is deployed in middle part, macro base station switch area;
Fig. 4 A is the flow chart of the interference control method between macro base station and the low power nodes of the embodiment of the present invention one;
Fig. 4 B is the interaction diagrams of the interference control method between macro base station and the low power nodes of the embodiment of the present invention one control non-equilibrium district user to low power cell user's interference in system time;
Fig. 5 A is that the HS-DSCH Serving cell that the interference control method between macro base station and the low power nodes of the embodiment of the present invention one is applied in user is the execution schematic diagram under macrocell sight;
Fig. 5 B is that user's HS-DSCH Serving cell is the order time slot map of the LPN under macrocell application;
Fig. 5 C is that user's HS-DSCH Serving cell is the protocol architecture figure of the wireless link process under macrocell application; ;
Fig. 5 D is that the HS-DSCH Serving cell that the interference control method between macro base station and the low power nodes of the embodiment of the present invention one is applied in user is the execution schematic diagram under the sight of low power cell;
Fig. 5 E is that user's HS-DSCH Serving cell is the order time slot map of the LPN under the application of low power cell;
Fig. 5 F is that user's HS-DSCH Serving cell is the protocol architecture figure of the wireless link process under the application of low power cell;
Fig. 6 is the structural representation of the interference control device between macro base station and the low power nodes of the embodiment of the present invention two.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, the preferred embodiment that this part is described, only for description and interpretation the present invention, is not intended to limit the present invention.Wherein non-equilibrium district is the non-equilibrium district between macrocell and low power nodes.Macrocell is the region that macro base station covers.Low power cell is the region that low power nodes covers.
Embodiment mono-
The present embodiment provides the interference control method between a kind of macro base station and low power nodes, and the method is applied to radio network controller (RNC, Radio Network Controller).As shown in Fig. 4 A and 4B, the method comprises:
Step S410: determine the user in non-equilibrium district in macrocell;
In this step, the macrocell user's that the macro base station that RNC reception macro base station sends measures ascending power, sends to LPN by macrocell user's uplink scrambling code and time slot format, the macrocell user's that the LPN that reception LPN sends measures ascending power.Wherein, ascending power can be user's special physical controlling channel of upward (DPCCH, Dedicated Physical Control Channel) received signal code power (RSCP, Received Signal Code Power) etc. of pilot tone (pilot tone Pilot).For certain user, when the difference that the ascending power measuring as LPN deducts the ascending power that macro base station measures is greater than zero, determine that this user is in non-equilibrium district.
Step S420: the user ID that sends macrocell user to low power nodes;
Step S430: receive the load alarm information that low power nodes sends, carry non-equilibrium district user's to be regulated and controled user ID in load alarm information;
In this step, LPN ascending load comprises the ascending power from the ascending power of the non-equilibrium district UE between macro base station and LPN and the descending area of coverage UE of LPN.LPN searches for demodulation and calculates the ascending power of non-equilibrium district UE according to non-equilibrium district UE uplink scrambling code used and time slot format, also calculate the ascending power from the descending area of coverage UE of LPN.Then, LPN compares the load Upper threshold of the ascending load calculating and setting.If ascending load is higher than load Upper threshold, LPN can calculate UE(that multiple duty ratio anharmonic ratioes are higher, and it may use HSUPA business, also may use R99 upstream data service).LPN sends load alarm information to RNC, and this load warning information carries multiple UE marks in the heavier non-equilibrium district of proportion simultaneously, comprises proportion sequencing information simultaneously.
In load alarm information and downward uplink authorization message, also carry load accounting sequencing information, lower ascending power according to load accounting sequencing information for this user for macro base station.Load accounting sequencing information comprises R99 business classified information; According to load accounting, sequence is carried out uplink power control to this user R99 business.Step S440: send and lower uplink authorization message to macro base station, lower the user ID of carrying non-equilibrium district user to be regulated and controled in uplink authorization message, lower ascending power for macro base station for this user.
In load alarm information and downward uplink authorization message, also carry load accounting sequencing information, lower ascending power according to load accounting sequencing information for this user for macro base station.The non-equilibrium district UE mark that macro base station sends according to RNC is carried out uplink power control, the UE that macro base station priority treatment dispatching priority is lower, in the situation that dispatching priority is identical, the heavier UE of the shared load ratio of priority treatment, controls these UE and reduces transmitting power.
When load accounting sequencing information comprises R99 business classified information, the load warning information that RNC sends according to low power base station carries out uplink power control to non-equilibrium district UE R99 business, the heavier UE of the shared load ratio of RNC priority treatment, up PS business the up PS business reorganization of R99 at a high speed to low speed, such as being up PS144kbps originally, adjust to the uplink service of up PS32kbp or PS16kbps low speed.
In addition, when RNC receives load alarm elimination message or the load normal messages that LPN sends; Send normal uplink authorization message to macro base station.
As shown in Figure 5 A and 5B, in the time that soft handover (Soft Handover) occurs user and when the Serving cell of user's HS-DSCH is macrocell, the descending DPCCH of RNC notice LPN does not send downlink power control order.Such as but not limited to, extended field in wireless link request (the RADIO LINK SETUP REQUEST) message between RNC and LPN, increases descending DPCCH TPC mode of operation instruction, is set to " closing " (TPC OFF MODE) state.Concrete with reference to figure 5C, increase FDD TPC DL Mode at the DL DPCH Information of RADIO LINK SETUP REQUEST, FDD TPC DL Mode=TPC OFF MODE is set.
As shown in Fig. 5 D and 5E, in the time that soft handover (Soft Handover) occurs user and when the Serving cell of user's HS-DSCH is low power cell, the descending DPCCH of RNC notice LPN sends downlink power control order.Such as but not limited to this, in wireless link reconfigured standard (RADIO LINK RECONFIGURATION PREPARE) between RNC and LPN, extended field increases descending DPCCH TPC mode of operation instruction, is set to " closing " (TPC OFF MODE) state.Concrete with reference to figure 5F, increase FDD TPC DL Mode at the DL DPCH Information of RADIO LINK SETUP REQUEST, FDD TPC DL Mode=TPC ON MODE is set.
The HSDPA that the present embodiment can effectively be controlled interference to low power cell user of non-equilibrium district user between macro base station and low power nodes and macrocell user is subject to the power control of low power nodes and disturbs.
Embodiment bis-
The present embodiment provides the control device of the interference between a kind of macro base station and low power nodes, for example RNC.As shown in Figure 6, this device comprises:
User's determining unit 610, for determining the user of macrocell in non-equilibrium district;
Transmitting element 620, for sending macrocell user's user ID to low power nodes; Send and lower uplink authorization message to macro base station, lower the user ID of carrying non-equilibrium district user to be regulated and controled in uplink authorization message, lower ascending power for macro base station for this user;
Receiving element 630, for receiving the load alarm information of low power nodes transmission, carries non-equilibrium district user's to be regulated and controled user ID in load alarm information.
User's determining unit 610 comprises: computing module, the ascending power that calculates the macrocell user that measures of low power nodes deducts the difference comparison module of the macrocell user's that macro base station measures ascending power, in the time that difference is greater than zero, determine that this user is in non-equilibrium district.Wherein, ascending power can be user's special physical controlling channel of upward (DPCCH, Dedicated Physical Control Channel) received signal code power (RSCP, Received Signal Code Power) etc. of pilot tone (pilot tone Pilot).The macrocell user's that low power nodes measures ascending power and the macrocell user's that macro base station measures ascending power sends and is received the macrocell user's that macro base station measures ascending power by receiving element 630 from LPN and macro base station respectively; Uplink scrambling code and time slot format that low power nodes is measured the required macrocell user of macrocell user's ascending power send to low power nodes to be sent by transmitting element 620.
PN ascending load comprises the ascending power from the ascending power of the non-equilibrium district UE between macro base station and LPN and the descending area of coverage UE of LPN.LPN searches for demodulation and calculates the ascending power of non-equilibrium district UE according to non-equilibrium district UE uplink scrambling code used and time slot format, also calculate the ascending power from the descending area of coverage UE of LPN.Then, LPN compares the load Upper threshold of the ascending load calculating and setting.If ascending load is higher than load Upper threshold, LPN can calculate UE(that multiple duty ratio anharmonic ratioes are higher, and it may use HSUPA business, also may use R99 upstream data service).LPN sends load alarm information to RNC, and this load warning information carries multiple UE marks in the heavier non-equilibrium district of proportion simultaneously, comprises proportion sequencing information simultaneously.
In load alarm information and downward uplink authorization message, also carry load accounting sequencing information, lower ascending power according to load accounting sequencing information for this user for macro base station.
The non-equilibrium district UE mark that macro base station sends according to RNC is carried out uplink power control, the UE that macro base station priority treatment dispatching priority is lower, in the situation that dispatching priority is identical, the heavier UE of the shared load ratio of priority treatment, controls these UE and reduces transmitting power.
This device can also comprise control unit 640, and for sorting this user R99 business is carried out to uplink power control according to load accounting, load accounting sequencing information comprises R99 business classified information; Or carry out uplink power control for the R99 business to macrocell and low power nodes.Specifically, the load warning information that RNC sends according to low power base station carries out uplink power control to non-equilibrium district UE R99 business, the heavier UE of the shared load ratio of RNC priority treatment, up PS business the up PS business reorganization of R99 at a high speed to low speed, such as being up PS144kbps originally, adjust to the uplink service of up PS32kbp or PS16kbps low speed.
Receiving element 630 receives load alarm that low power nodes sends while eliminating message or load normal messages, and transmitting element sends normal uplink authorization message to macro base station.
This device can also comprise notification unit 650.In the time there is soft handover (Soft Handover) in user and when the Serving cell of user's HS-DSCH is macrocell, notification unit 650 notify the descending DPCCH of low power nodes do not send downlink power control order such as but not limited to, extended field in wireless link request (RADIO LINK SETUP REQUEST) message between RNC and LPN, increase descending DPCCH TPC mode of operation instruction, be set to " closing " (TPC OFF MODE) state.Concrete with reference to figure 5C, increase FDD TPC DL Mode at the DL DPCH Information of RADIO LINK SETUP REQUEST, FDD TPC DL Mode=TPC OFF MODE is set.In the time that soft handover (Soft Handover) occurs user and when the Serving cell of user's HS-DSCH is low power cell, notification unit 650 notifies the descending DPCCH of low power nodes to send downlink power control order.Such as but not limited to this, in wireless link reconfigured standard (RADIO LINK RECONFIGURATION PREPARE) between RNC and LPN, extended field increases descending DPCCH TPC mode of operation instruction, is set to " closing " (TPC OFF MODE) state.Concrete with reference to figure 5F, increase FDD TPC DL Mode at the DL DPCH Information of RADIO LINK SETUP REQUEST, FDD TPC DL Mode=TPC ON MODE is set.
The HSDPA that the embodiment of the present invention can effectively be controlled interference to low power cell user of non-equilibrium district user between macro base station and low power nodes and macrocell user is subject to the power control of low power nodes and disturbs.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (12)
1. the interference control method between macro base station and low power nodes, is characterized in that, the method comprises:
Determine the user in non-equilibrium district in macrocell;
Send macrocell user's user ID to low power nodes;
Receive the load alarm information that low power nodes sends, in described load alarm information, carry non-equilibrium district user's to be regulated and controled user ID;
Send and lower uplink authorization message to macro base station, described in carrying in described downward uplink authorization message, non-equilibrium district user's to be regulated and controled user ID, lowers ascending power for macro base station for this user.
2. the interference control method between macro base station according to claim 1 and low power nodes, is characterized in that, determines that the step of the user in non-equilibrium district in macrocell comprises:
The macrocell user's that the macro base station that reception macro base station sends measures ascending power;
Macrocell user's uplink scrambling code and time slot format are sent to low power nodes;
The macrocell user's that the low power nodes that reception low power nodes sends measures ascending power;
For certain user, when the difference that the ascending power measuring when low power nodes deducts the ascending power that macro base station measures is greater than zero, determine that this user is in non-equilibrium district.
3. the interference control method between macro base station according to claim 1 and low power nodes, is characterized in that:
In described load alarm information and downward uplink authorization message, also carry load accounting sequencing information, lower ascending power according to described load accounting sequencing information for this user for macro base station.
4. the interference control method between macro base station according to claim 3 and low power nodes, is characterized in that:
Described load accounting sequencing information comprises R99 business classified information;
According to described load accounting sequence, this user R99 business is carried out to uplink power control.
5. the interference control method between macro base station according to claim 1 and low power nodes, is characterized in that:
Receive load alarm elimination message or load normal messages that low power nodes sends;
Send normal uplink authorization message to macro base station.
6. the interference control method between macro base station according to claim 1 and low power nodes, is characterized in that, also comprises:
In the time that the HS-DSCH Serving cell that soft handover and user occur user is macrocell, the descending DPCCH of notice low power nodes does not send downlink power control order;
In the time that the HS-DSCH Serving cell that soft handover and user occur user is low power cell, the descending DPCCH of notice low power nodes sends downlink power control order.
7. the interference control device between macro base station and low power nodes, is characterized in that, this device comprises:
User's determining unit, for determining the user of macrocell in non-equilibrium district;
Transmitting element, for sending macrocell user's user ID to low power nodes; Send and lower uplink authorization message to macro base station, described in carrying in described downward uplink authorization message, non-equilibrium district user's to be regulated and controled user ID, lowers ascending power for macro base station for this user;
Receiving element, for receiving the load alarm information of low power nodes transmission, carries non-equilibrium district user's to be regulated and controled user ID in described load alarm information.
8. the interference control device between macro base station according to claim 7 and low power nodes, is characterized in that, described user's determining unit comprises:
Computing module, the ascending power that calculates the macrocell user that measures of low power nodes deducts the difference of the macrocell user's that macro base station measures ascending power;
Comparison module, in the time that described difference is greater than zero, determines that this user is in non-equilibrium district;
Wherein, the macrocell user's that described low power nodes measures ascending power and the macrocell user's that macro base station measures ascending power send and are received by described receiving element from low power nodes and macro base station respectively;
Uplink scrambling code and time slot format that low power nodes is measured the required macrocell user of macrocell user's ascending power send to low power nodes to be sent by described transmitting element.
9. the interference control device between macro base station according to claim 7 and low power nodes, is characterized in that:
In described load alarm information and downward uplink authorization message, also carry load accounting sequencing information, lower ascending power according to described load accounting sequencing information for this user for macro base station.
10. the interference control device between macro base station according to claim 9 and low power nodes, is characterized in that, also comprises:
Control unit, for sorting this user R99 business is carried out to uplink power control according to load accounting,
Described load accounting sequencing information comprises R99 business classified information.
Interference control device between 11. macro base stations according to claim 7 and low power nodes, is characterized in that:
When message or load normal messages are eliminated in the load alarm that described receiving element reception low power nodes sends, described transmitting element sends normal uplink authorization message to macro base station.
Interference control device between 12. macro base stations according to claim 7 and low power nodes, is characterized in that, also comprises:
Notification unit, while being macrocell for there is soft handover and user's HS-DSCH Serving cell as user, the descending DPCCH of notice low power nodes does not send downlink power control order; When the HS-DSCH Serving cell that soft handover and user occur user is low power cell, the descending DPCCH of notice low power nodes sends downlink power control order.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310115958.0A CN104105184B (en) | 2013-04-03 | 2013-04-03 | Interference control method and device between macro base station and low power nodes |
| PCT/CN2013/081648 WO2013189345A2 (en) | 2013-04-03 | 2013-08-16 | Method and apparatus for controlling interference between macro base station and low power node |
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| CN201310115958.0A CN104105184B (en) | 2013-04-03 | 2013-04-03 | Interference control method and device between macro base station and low power nodes |
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| CN106686713A (en) * | 2015-11-10 | 2017-05-17 | 中兴通讯股份有限公司 | Method and device for controlling uplink interference |
| CN106686713B (en) * | 2015-11-10 | 2021-06-25 | 中兴通讯股份有限公司 | Uplink interference control method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104105184B (en) | 2019-01-11 |
| WO2013189345A2 (en) | 2013-12-27 |
| WO2013189345A3 (en) | 2014-02-27 |
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