CN101137240A - User equipment and method to improve high speed downlink shared control channel cell change - Google Patents
User equipment and method to improve high speed downlink shared control channel cell change Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/02—Buffering or recovering information during reselection ; Modification of the traffic flow during hand-off
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/02—Buffering or recovering information during reselection ; Modification of the traffic flow during hand-off
- H04W36/023—Buffering or recovering information during reselection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/34—Reselection control
- H04W36/36—Reselection control by user or terminal equipment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W92/00—Interfaces specially adapted for wireless communication networks
- H04W92/04—Interfaces between hierarchically different network devices
- H04W92/10—Interfaces between hierarchically different network devices between terminal device and access point, i.e. wireless air interface
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Abstract
A radio resource control (RRC) message is received by a radio resource control (RRC) device of a user equipment (UE). The RRC message notifies the FDD UE of a high speed dedicated shared channel (HS-DSCH) inter-Node B cell change. A reordering buffers of a medium access controller-high speed (MAC-hs) is flushed in response to the receiving the RRC message. A status report is generated for each acknowledge mode (AM) RLC instance mapped to the HS-DSCH by a radio link control (RLC) device after the MAC-hs flushes the reordering buffer. Each status report indicates missing AM RLC packet data units (PDUs). The RRC device sends a ''TRANSPORT CHANNEL RECONFIGURATION COMPLETE'' message on a DCCH after the RLC device generates each status report.
Description
Related application
The application is that application number is 03807731.0 (the PCT international application no is PCT/US03/10037), the applying date to be the dividing an application of Chinese invention patent application on April 2nd, 2003.
Technical field
The present invention relates to the field of radio communication.More specifically say, after the present invention relates in the wireless system that distributes from the data of intermediate point, switch to the efficient recovery that has of the data of buffering.Have the telecommunication network controller (RNC) that is coupled to one or more Node B and utilize adaptive modulation and coding (AMC) and the third generation (3G) system that hybrid automatic repeat requests (H-ARQ) technology wirelessly is coupled to a plurality of subscriber equipmenies (UE) successively only is an example of this system.
Background technology
3G Universal Terrestrial Radio Access Network network (UTRAN) comprises several RNC, and wherein each RNC all can be coupled on several Node B.Node B is the entity that comprises one or more base stations, and wherein each BTS management is for the business of one or more sub-districts.
3G FDD and TDD system typically use RNC to cushion and scheduled transmission to the data of UE.Yet, with regard to the IA High Speed Channel of 3G cellular system, be by Node B cushion and data dispatching be used for the transmission.One in these IA High Speed Channel for example is high-speed downlink shared channel (HS-DSCH).Because data are to be distributed by Node B, the data buffering that must will be used for transmitting is at Node B.Such system causes RNC can not obtain the last state of the Node B that Packet Data Unit (PDU) controlled.Therefore, in case when switching, then must coordinate to have the scheduling of the transfer of data of cell change in the minizone.Otherwise, behind cell change, need again the loss of data that synchrodata transmitted to avoid or repeat transmission.In 3G network, by the switching between the RNC control sub-district.Therefore the control RNC that comprises the sub-district of UE can change, so data might be lost or repeat because of this switching.Because each RNC is associated with several Node B in this system, causes this problem more serious.Because switch the UE sub-district, therefore mobile UE needs the possibility of Node B change to need the RNC change to be greater more than it.
HS-DSCH utilizes AMC to make it possible to high speed transmission data, and utilizes H-ARQ to increase the possibility of successful Data transmission.When this UE must change the cell associated of the UTRAN access point of carrying out transmission and reception service HS-DSCH radio link, service HS-DSCH cell change.When physical channel conditions that has realized in the sub-district of replacing improving and/or physical capacity, then call service HS-SDCH cell change.The RNC place of other channel in UTRAN that is different from the 3G network stops, and HS-DSCH stops at Node B place.
The type that has two kinds of HS-DSCH cell changes.When UE with two sub-districts that identical Node B is associated between when changing, then be the service HS-DSCH cell change in the Node B.When this UE with two sub-districts that different N ode B is associated between when changing, then be the service HS-DSCH cell change between the Node B.In the cell change between Node B, the Node B before this service HS-DSCH cell change is called source Node B, and will serve the HS-DSCH cell change after Node B be called target Node B.
Equal radio link control (RLC) entity is all arranged among RNC and the UE, be provided for automatic re-send request may (ARQ) function of the transmission of data.This transmission RLC entity transmits Sequence Number (SN) with signal in the PDU header, receives the RLC entity and utilizes this sequence number not lose PDU to guarantee current transmission.If between current transmission period, lost PDU (because of not transmitting in order due to the PDU), then receive RLC entity status report PDU, some PDU has lost with notice transmission RLC entity.Utilize the state of this status report PDU with the explanation transfer of data.Wherein this status report PDU identifies the SN of the PDU that loses or receive.If lose PDU, the duplicate that then sends the PDU that the RLC entity can lose this is transferred to again and receives RLC.
Send the RLC entity and also may perhaps periodically generate status report from receiving RLC entity polling status report PDU.The function of described poll provides a kind of mechanism, for the state that sends the described PDU transmission of RLC entity requests.
H-ARQ function among the Node B also provides the transmission again of failed transmission.Though H-ARQ moves the success rate that the transmission of some failure is removed and improves Data transmission, what assure success transmission at last but is the rlc protocol layer.
Since the dynamic change of propagation conditions, thus the HS-DSCH cell change must be carried out apace, to keep the quality of service.During service HS-DSCH cell change, UE may stop transmission and reception in the cell-of-origin before current all PDU that store are successfully transmitted in the Node B of source.Because source Node B operation dispatching and buffered data, and because described data rate very high (for example 10Mb/ second or higher), therefore when this UE carries out service HS-DSCH cell change (the particularly switching between the NodeB), the data that are buffered in a large number among the Node B of source might be lost.One of this loss of data is former because do not provide any mechanism in order to the buffered data on the Node B of source is transferred to target Node B in the UTRAN structure.In case the HS-DSCH cell change, then owing to fail to give notice RNCNode B data transmission scheduling, so this RNC does not know that how many loss of datas are arranged (if the words that have), and this RNC does not know whether UE has successfully confirmed this transmission yet.Therefore, when the HS-DSCH cell change data buffering when keeping the transmission of no data loss, this RNC RLC must recover these data in the Node B of source.
At present, prior art systems has two kinds of preferred modes to recover the data of buffering on the Node B of source.Behind the HS-DSCH cell change: 1) RNC can be clearly to UE solicited status PDU; Or 2) the RNC place of can be only ending in the cell-of-origin begin transmission, and not transmitting in order of recognizing of UE will generate status PDU.
In first kind of situation, wherein to ask a status PDU clearly, this RNC must at first wait for up to set up physical channel in new sub-district till RNC by poll UE.Then, this status PDU request is sent out and is received and handle by UE.UE generates status PDU, and this status PDU is sent back to RNC, and this RNC handles this status PDU and judges which PDU needs transmission again.
In second kind of situation, wherein RNC only begins to transmit PDU from stopping place the cell-of-origin, and this UE recognizes the data of not transmitting in order and generates a status PDU and transfers back to RNC.This RNC handles this status PDU and knows which PDU needs transmission again.
In above-mentioned two kinds of situations any recovers the data that cushion if desired in the Node B of source, can handle a status PDU, yet but seriously incured loss through delay the time that the correct reception of this UE is transmitted data again.This is to produce the time of this PDU state because of having incured loss through delay this UE, thereby has incured loss through delay the time that this RNC receives this PDU state.
If when carrying out transmission under the RLC answer-mode, data can not be passed to high-rise up to carrying out Data transmission in order.Therefore, UE is required the not sequenced data of buffering, till can transmitting the PDU that is lost again.So not only caused the delay of transmission, and require this UE have enough large memories with buffered data up to can successfully transmitting the data that are stored among the Node B of source.Otherwise effective speed can be lowered, thereby influences service quality.Because memory is very expensive, so this is undesirable design limit.
Therefore, the first art methods of recovering this buffered data can produce unexpected consequence before the data that cushion in source Node B were transferred to target Node B.Need a kind of system and method that the buffered data of this source of efficient recovery Node B can more be arranged in the short period of time, with suitable maintenance customer's service quality demand.
Summary of the invention
Purpose of the present invention is implemented a succession of action so that shorten the stand-by period and prevent losing of PDU transmission potentially during this service HS-DSCH cell changing procedure for providing a kind of.Introduce a new criterion produces RLC PDU for UE status report.After having notified the indicated HS-DSCH cell change of this RRC changeover program, this UE just automatically produces the status report of PDU as early as possible, more effectively to recover the buffered data of source Node B.Can be each answer-mode (AM) RLC example that is associated with this HS-DSCH transfer channel and transmit the PDU state with signal.
According to an aspect of the present invention, provide a kind of UE that is used to promote the HS-DSCH cell change, this UE comprises: be used to receive the device of wireless signal, radio resource control (RRC) request message that this wireless signal carrying is relevant with the HS-DSCH cell change; High speed media access control (MAC-hs) device; The rearrangement buffer related with described MAC-hs device; Wherein, this UE also comprises: be used for removing in response to the first information related with the RRC request message device of described rearrangement buffer, the MAC-hs device provides expression UE to receive second information of HS-DSCH PDU; And the device that is used for generating in response to described second information status report, this status report is corresponding to the AM RLC example that is mapped to HS-DSCH, the HS-DSCH PDU that this status report indication UE loses.
According to a further aspect in the invention, a kind of method that is used to promote the HS-DSCH cell change carried out by UE is provided, described UE comprises MAC-hs device and the rearrangement buffer related with MAC-hs, and this method comprises the wireless signal that utilizes UE to receive the carrying RRC request message related with the HS-DSCH cell change; Wherein, this method comprises following subsequent step: empty described rearrangement buffer in response to the first information related with the RRC request message, described MAC-hs device provides expression UE to receive second information of HS-DSCH PDU; And generating status report in response to described second information, this status report is corresponding to the AM RLC example that is mapped to HS-DSCH, the HS-DSCH PDU that this status report indication UE loses.
Description of drawings
Fig. 1 for according to behind the HS-DSCH of the being used for cell change of the present invention to the flow chart of the effective procedure that efficient recovery is arranged of Node B buffered data;
Fig. 2 is the flow chart of replacement method, wherein this RNC wait state PDU before the transmission of beginning new data in Target cell.
Embodiment
Preferred implementation of the present invention will illustrate with reference to the accompanying drawings, wherein the assembly of same number TYP in institute's drawings attached.
According to the present invention, RNC obtains the state of PDU and the stand-by period of the data recovering to cushion among the Node B of this source in order to shorten, so behind this service HS-DSCH cell change, and then this UE just automatically sends to described RNC in the notice back of the indicated HS-DSCH cell change of RRC process with the state of PDU.The generation of status PDU can be applied to each with AM RLC example that this HS-DSCH transfer channel is associated on.
With reference to the flow chart of figure 1, show a kind of according to the method 10 that the buffered data of efficient recovery Node B is arranged of the present invention.This RNC identifies the needs (step 12) for service HS-DSCH cell change.Then, notify this Node B should serve HS-DSCH cell change (step 14).As indicated via the RRC request message, notice UE service HS-DSCH cell change (step 16).Note that also may be before step 14 first invocation step 16, and do not have any disadvantageous consequence.
In case UE has received the RRC request message in step 18, time of delay when shortening the data that cushion among the Node B of recovery source, and then this UE generates the status report (step 20) of an indication RLC PDU state after the notice of the indicated HS-DSCH cell change of RRC process as early as possible automatically.This UE does not wait for the triggering (for example this RNC request produces a status PDU or this UE detects the data of not transmitting in order) in order to generate status PDU in arbitrary prior art.
In UE, have that many UE can implement after service HS-DSCH cell change with the different alternative method of the generation of triggering PDU status report.Yet several examples are proposed here.Preferably, first selects, in case when the buffering area of its rearrangement of this MAC-hs notice RLC empties.Second is chosen as the 3rd layer of (L3) RRC process that RRC notice RLC indicates this service HS-DSCH cell change.The 3rd, physical layer can notify RLC to receive HS-DSCH control channel in this Target cell, in case perhaps this physical layer can notify this RLC HS-DSCH to control transitions to this Target cell.Those skilled in the art must can be appreciated that the method that also has other can treat to be sent to from this UE the RLC PDU status message of RNC in order to triggering.Because this process causes producing in the short period of time this PDU state and this PDU state is sent to RNC (step 22), thereby causes more effectively recovering the buffered data of source NodeB.
According to step 22, there are some kinds of replacement methods can supply this UE that the status report of PDU is sent to RNC.These methods that send this status PDU are the example how the PDU state transmits with signal to RNC from UE, and are not main affairs of the present invention, and it relates to based on new criterion and generates status PDU.Preferably, UE generates the RLC status report for the AM RLC example that each is mapped to the HS-DSCH transfer channel.
In second kind of replacement method, in case obtain status report, UE just sends the PDU status report to RNC via the first existing uplink message from this UE.For the Serving cell in the Node B changes (and supposing that this HS-DSCH transfer channel and radio bearer parameter do not change), this message is " physical channel reconfigures and finishes " on DCCH.If HS-DSCH transfer channel and radio bearer parameter change and/or change for the Serving cell between the Node B, this message is " transfer channel reconfigures and finishes " on DCCH.The PDU state can identify in arbitrary RRC signaling message.Then, the state of the described PDU of RNC RRC entity notice RLC is to restart to the transmission of target Node B.
In the third replacement method, UE sends the status report of the new L3 signaling message on this relevant DCCH to this RNC from this UE.This new information sends the rrc layer of this RNC to from radio resource control (RRC) layer of this UE.Then, this RNC notifies the state of the described PDU of this rlc layer, to restart to the transmission of target Node B.In this case, the PDU status message shown in Fig. 1 can comprise two independent message: " RRC finishes " and " RLC state ".
Should be noted that the specific format of the status report of this PDU can change.For example, the form of the status report of described PDU can comprise: the 1) sequence number of last PDU that successfully transmits (SN) in the sequence; 2) the highest SN of the PDU that successfully receives; 3) there is not the SN of the PDU (PDU that promptly loses) that successfully receives, paramount the highest SN to the PDU that successfully receives; 4) or the tabulation of the SN of the PDU that successfully receives.
In case when RNC receives the message of carrying PDU state, then handle this PDU status message (step 24), with the PDU that determines to be lost by this RNC RLC.This RNC recognizes the data of losing because of this cell change now, and the data that this can be lost are transferred to this UE (step 26) again.Should be noted that described message can have many kinds to replace, and is not limited to only carry the PDU status report.
Be to be further noted that in embodiments of the present invention RNC can continue to transmit the data that will be transferred to this UE in the Target cell between step 16 and 24.Successfully transmit because if fail during buffered data on the active Node B order of data will disorderly fall, therefore can force this UE RLC to cushion this data, make data can be delivered to high level in order.This requires UE to have the memory of the chaotic PDU of the described order of enough storages.After the data of having lost any order, transmission is restricted to the memory capabilities of this UE, till the data of successfully having transmitted the order of losing.
Refer now to the flow chart of Fig. 2, show a kind of according to the present invention the method 40 of the buffered data that efficient recovery Node B is arranged of another execution mode.This method 40 is similar to method shown in Figure 1 10, and identical with the step of the step of Fig. 1 same tag and Fig. 1 among Fig. 2.Yet according to the embodiment of the present invention, this method 40 comprises a new step 17, and wherein this RNC suspends all down link HS-DSCH transmission to UE, up to handled described PDU status message in step 24 till.This execution mode has minimized the delay of transmission again of the buffered data of source Node B, and has limited the data volume that must cushion on UE.
With regard to this minimum latency, Node B does not also know the transmission sequence number of RLC, and the transmitting and scheduling in the Node B is based on first in first out (FIFO).Therefore, if data are to be transmitted before this PDU state is processed by the RNC in the Target cell, then these data can at first be sent.Such data queue among the Node B can cause the further delay of transmission again of possible source Node B buffered data.
The present invention is applicable to the HS-DSCH cell change in the cell change in cell change between the Node B and the Node B.Because in the situation in Node B, come because indoor design problem and can not be for Node B, so RNC can indicate the needs for the generation of the PDU state of two kinds of situations the HS-DSCH data of buffering target goal sub-district again.This UE also possibly can't pick out cell change between the Node B still be cell change in the Node B, this will cause the generation for the PDU state of two kinds of situations between the Node B and in the Node B.For between the Node B that buffered data can't be switched to Target cell or for the situation of the cell change in the Node B, transmit status PDU is useful by this way.
Though the present invention has been described in detail in detail, will be appreciated that the present invention does not limit to be formed on this, and can do various changes to it to the present invention in the defined spirit and scope not breaking away from claims.
Claims (7)
1. user equipment (UE) that is used to promote high-speed downlink shared channel HS-DSCH cell change, this UE comprises:
Be used to receive the device of wireless signal, the radio resource control RRC request message that this wireless signal carrying is relevant with the HS-DSCH cell change;
High speed media access control MAC-hs device;
The rearrangement buffer related with described MAC-hs device;
It is characterized in that this UE also comprises:
Be used for removing in response to the first information related with the RRC request message device of described rearrangement buffer, the MAC-hs device provides expression UE to receive second information of HS-DSCH Packet Data Unit PDU; And
Be used for generating in response to described second information device of status report, this status report is corresponding to the answer-mode radio link control AM RLC example that is mapped to HS-DSCH, the HS-DSCH PDU that this status report indication UE loses.
2. UE according to claim 1, wherein be used to generate the device provisioning additivity report of status report, described additivity report is related with other AM RLC examples that are mapped to HS-DSCH, the additional HS-DSCH PDU that this additivity report indication UE loses.
3. UE according to claim 1, wherein said UE comprise radio link control RLC device, and this RLC device comprises the device that is used to generate status report.
4. method that is used to promote the high-speed downlink shared channel HS-DSCH cell change carried out by user equipment (UE), described UE comprises high speed media access control MAC-hs device and the rearrangement buffer related with MAC-hs, and this method comprises the wireless signal that utilizes UE to receive the carrying radio resource control RRC request message related with the HS-DSCH cell change; It is characterized in that this method comprises following subsequent step:
Empty described rearrangement buffer in response to the first information related with the RRC request message, described MAC-hs device provides expression UE to receive second information of HS-DSCH Packet Data Unit PDU; And
Generate status report in response to described second information, this status report is corresponding to the answer-mode radio link control AM RLC example that is mapped to HS-DSCH, the HS-DSCH PDU that this status report indication UE loses.
5. method according to claim 4 comprises also generating the additivity report that described additivity report is related with other AM RLC examples that are mapped to HS-DSCH, the additional HS-DSCH PDU that this additivity report indication UE loses.
6. method according to claim 4, wherein UE generates described status report automatically.
7. according to each described method among the claim 4-6, wherein UE comprises radio link control RLC device, and this RLC device is implemented the generation of described status report.
Applications Claiming Priority (4)
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|---|---|---|---|
| US37074002P | 2002-04-05 | 2002-04-05 | |
| US60/370,740 | 2002-04-05 | ||
| US10/334,489 US6717927B2 (en) | 2002-04-05 | 2002-12-30 | System for efficient recovery of node B buffered data following serving high speed downlink shared channel cell change |
| US10/334,489 | 2002-12-30 |
Related Parent Applications (1)
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|---|---|---|---|
| CNB038077310A Division CN100559902C (en) | 2002-04-05 | 2003-04-02 | The subscriber equipment and the method that help high speed-downlink shared channel cell change |
Publications (2)
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|---|---|
| CN101137240A true CN101137240A (en) | 2008-03-05 |
| CN101137240B CN101137240B (en) | 2011-01-26 |
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| CN2007101538149A Expired - Lifetime CN101137241B (en) | 2002-04-05 | 2003-04-02 | User equipment and method to improve high speed downlink shared control channel cell change |
| CN200910174624.4A Expired - Lifetime CN101662801B (en) | 2002-04-05 | 2003-04-02 | User equipment and method which facilitate high speed-downlink shared channel cell change |
| CN2007101538134A Expired - Lifetime CN101137240B (en) | 2002-04-05 | 2003-04-02 | User equipment and method to improve high speed downlink shared control channel cell change |
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| CN2009101746259A Expired - Lifetime CN101662803B (en) | 2002-04-05 | 2003-04-02 | System and method which facilitate high speed-downlink shared channel cell change |
| CN2007101538149A Expired - Lifetime CN101137241B (en) | 2002-04-05 | 2003-04-02 | User equipment and method to improve high speed downlink shared control channel cell change |
| CN200910174624.4A Expired - Lifetime CN101662801B (en) | 2002-04-05 | 2003-04-02 | User equipment and method which facilitate high speed-downlink shared channel cell change |
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| WO2009122831A1 (en) * | 2008-03-31 | 2009-10-08 | 日本電気株式会社 | Concealment processing device, concealment processing method, and concealment processing program |
| KR101613342B1 (en) | 2009-06-17 | 2016-04-18 | 인터디지탈 패튼 홀딩스, 인크 | Method and apparatus for performing handover with a relay node |
| US8867494B2 (en) * | 2009-11-09 | 2014-10-21 | Qualcomm Incorporated | System and method for single frequency dual cell high speed downlink packet access |
| CN104811997B (en) * | 2014-01-26 | 2019-07-05 | 中兴通讯股份有限公司 | Configuration status management method, radio network controller and the base station of user equipment |
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| US5751719A (en) * | 1995-11-30 | 1998-05-12 | Lucent Technologies Inc. | Method and system for data transfer in the presence of disconnects |
| US5987326A (en) * | 1997-02-11 | 1999-11-16 | Qualcomm Incorporated | Transmit power reduction for a high speed CDMA link in soft handoff |
| US6230013B1 (en) * | 1997-11-26 | 2001-05-08 | Telefonaktiebolaget Lm Ericsson (Publ) | Diversity handling moveover for CDMA mobile telecommunications |
| US6445917B1 (en) * | 1999-05-19 | 2002-09-03 | Telefonaktiebolaget Lm Ericsson (Publ) | Mobile station measurements with event-based reporting |
| US6301479B1 (en) * | 1999-07-08 | 2001-10-09 | Telefonaktiebolaget Lm Ericsson | Technique for providing a secure link in a mobile communication system |
| SE516727C2 (en) * | 2000-04-11 | 2002-02-19 | Ericsson Telefon Ab L M | Method and apparatus for reducing the amount of hand-related signal traffic in a telecommunications system |
| FR2809577B1 (en) * | 2000-05-25 | 2002-10-18 | Mitsubishi Electric Inf Tech | DATA TRANSMISSION METHOD COMBATING THE DEGRADATION OF QUALITY OF SERVICE |
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2003
- 2003-04-02 CN CN2009101746259A patent/CN101662803B/en not_active Expired - Lifetime
- 2003-04-02 CN CN2007101538149A patent/CN101137241B/en not_active Expired - Lifetime
- 2003-04-02 CN CN200910174624.4A patent/CN101662801B/en not_active Expired - Lifetime
- 2003-04-02 CN CN2007101538134A patent/CN101137240B/en not_active Expired - Lifetime
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2015
- 2015-10-12 NO NO20151369A patent/NO339864B1/en not_active IP Right Cessation
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| Publication number | Publication date |
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| CN101137241A (en) | 2008-03-05 |
| CN101137240B (en) | 2011-01-26 |
| CN101662801B (en) | 2014-02-26 |
| CN101662803B (en) | 2013-01-02 |
| CN101662803A (en) | 2010-03-03 |
| CN101137241B (en) | 2012-04-25 |
| CN101662801A (en) | 2010-03-03 |
| NO20151369L (en) | 2004-10-04 |
| NO339864B1 (en) | 2017-02-13 |
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