CN101656568B - User equipment for wireless hybrid TDMA/CDMA - Google Patents
User equipment for wireless hybrid TDMA/CDMA Download PDFInfo
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- CN101656568B CN101656568B CN 200910167264 CN200910167264A CN101656568B CN 101656568 B CN101656568 B CN 101656568B CN 200910167264 CN200910167264 CN 200910167264 CN 200910167264 A CN200910167264 A CN 200910167264A CN 101656568 B CN101656568 B CN 101656568B
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Abstract
A wireless hybrid time division multiple access/code division multiple access (TDMA/CDMA) user equipment (UE) includes a signaling receiver and a data detection device in communication with the signaling receiver. The signaling receiver is configured to receive and recover signaled information of code and timeslot assignments of the UE to support an RF communication. The data detection device is configured to recover from the signaling information an identifier of a plurality of assigned timeslots and an indication of a first and last code of a set of consecutive codes. The last code is identified by an identifier associated with the last code, and the same set of consecutive codes are assigned to each of the plurality of assigned timeslots.
Description
The application is the dividing an application for the Chinese patent application 02809882.X of " minimizing the method and apparatus with signaling code and time slot allocation desired data amount " that be on May 13rd, 2002, denomination of invention the applying date.
Technical field
The present invention relates generally to wireless hybrid TDMA (TDMA)/code division multiple access (CDMA) communication system.More particularly, the present invention relates to configures physical channel in described system.
Background technology
Wireless communication system is just from delivering initial voice and paging information to delivering for example wireless Internet data evolution of voice, paging and other data message.Huge variation has occured in the bandwidth of the informational needs of all these data types.Some data in the described data need wider bandwidth than traditional voice and paging information.
In cdma communication system, multiple communication is sent out in the frequency spectrum of sharing, and these communications are to be distinguished by their channel code.In order more effectively to use the frequency spectrum of sharing, hybrid TDMA/cdma communication system is the repeating frame with particular time-slot number with the frequency range time division of sharing.Communication is by using one or more time slots and one or more code to be sent out in described system.A kind of in the described system is global mobile communication system (UMTS) time division duplex (TDD) communication system of using the CDMA of 15 time slots.In TDD, the time slot of specific cell only is used to up link or downlink communication.
Need the problem of different bandwidth for processing different communication, used adaptive modulation and coding (AM﹠amp; C).At AM﹠amp; Among the C, the modulation and the encoding scheme that are used for the transmission of data are changed more effectively to use radio resource.Illustrate, the modulation that is used for data can be changed, and for example uses binary phase shift keying (BPSK), Quadrature Phase Shift Keying (QPSK), or M rank (M-ary) quadrature amplitude modulation etc.In addition, data can be dispensed in the single code of a time slot, in a plurality of codes of a time slot, in the single code of a plurality of time slots or in a plurality of codes in a plurality of time slot.
Because the data that are transferred to the data of special user equipment (UE) or transmit from particular UE can send with more modulation, time slot and encoding scheme, so described modulation/time slot/coded message must be delivered to UE.Such information is typically sent or is broadcast to UE with signal, and typically carries out with the low speed control channel.Send described information with signal and used useful expense and air resource.Because AM﹠amp; C typically is not applied to control channel, so the air resource that any information that transmits by control channel is used is than passing through to use AM﹠amp; The air resource that needs in the situation of the channel transmission information of C is more.Yet, no matter whether use AM﹠amp; C expects to reduce signaling consumption.
Therefore, expectation is by using AM﹠amp; The channel of C transmits modulation/time slot as much as possible/coded message.In addition, expectation reduces time slot and coding assignment signaling.
Summary of the invention
The invention provides a kind of wireless hybrid TDMA/CDMA (TDMA/CDMA) subscriber equipment (UE), this UE comprises:
The signaling receiver, be configured to receive with the information with the signal transmission of the code that recovers described UE and time slot allocation and communicate by letter with support RF, and recover the identifier of time slot of a plurality of distribution and first yard and the indication of last code of one group of continuation code from the described information that sends with signal, should be identified by an identifier that is associated with this last code by last code, and same group of continuation code is assigned to each time slot in the time slot of described a plurality of distribution; And
Data detection device is communicated by letter with described signaling receiver.
The code of one order is provided to the potential distribution for the user who gives wireless hybrid TDMA/cdma communication system.At least one (1) individual time slot is selected to support described communication.For each selected time slot, at least one (1) individual code is selected.Be selected if having more than a code, then this code is selected continuously.For at least one (1) the individual time slot in the selected time slot, the identifier of first of selected continuation code and last code is sent with signal.This user receives the identifier that sends with signal, and uses according to the selected continuity code of sign and support communication.
Description of drawings
Fig. 1 is the sketch for the wireless physical channel configuration signal system of down link.
Fig. 2 is the sketch for the described system of up link.
Fig. 3 is the flow chart that uses the signaling of continuation code.
Fig. 4 is the explanation form that uses the distribution of continuation code.
Fig. 5 is the flow chart that uses the signaling of public continuation code.
Fig. 6 is the explanation form that uses the distribution of public continuation code.
Fig. 7 is the flow chart that uses the signaling of the public continuation code that is arranged in continuous slot.
Fig. 8 is the explanation form that uses the distribution of the public continuation code that is arranged in continuous slot.
Fig. 9 is the flow chart that uses the signaling of complete time slot allocation.
Figure 10 is the explanation form of complete time slot allocation.
Figure 11 is the flow chart that uses the signaling of continuous complete time slot.
Figure 12 is the explanation form of continuous complete time slot allocation.
Figure 13 be summarize with signal send be used for 16 codes and 12 available the time slot sytem the form of the required bit of code/time slot allocation.
Figure 14 is the flow chart of method that all continuation codes in all time slots are numbered.
Figure 15 is the form that the explanation continuation code distributes.
Embodiment
The present invention is described with reference to the accompanying drawing of drawing, and wherein numeral waits expression to run through the element of full text.
According to the present invention, a kind of method 53 for code being distributed to time slot is used continuation codes, and is described with reference to the flow chart of Fig. 3, and the simple description that described code minute is used in UE A, UE B and UE C is shown in Figure 4.In Fig. 4, show ten two (12) individual potential time slots and ten six (16) individual potential codes, but the present invention is not limited to time slot and/or the code of given number.
Each time slot can be assigned with to potentiality predetermined number object code, for example 16 codes.This predetermined number object code is assigned with an order or order, for example from 0 to 15, (step 54).For specific UE, only continuous code is assigned to the UE in given time slot, (step 56).In order to describe, with reference to figure 4, UE A is dispensed on the code 4-8 in the time slot 2. Code 1,3 and 4 does not allow to be assigned to UE A, unless code 2 also is assigned to UE A.Similarly, UE A has been assigned with a yard 6-9 in time slot 6; UE B has been assigned with yard 9-12 and has been assigned with a yard 0-13 in time slot 9 in time slot 2; And UE C has been assigned with a yard 1-5 in time slot 11.
Return with reference to figure 3, for this allocative decision is sent to UE with signal, for the time slot of each distribution, need first yard and the indication of last code of continuation code, (step 58) for ten six (16) individual potential code orders, needs eight (8) individual bits.Four (4) individual bit indication initial codes (code 0 to 15), and the number (code 0 to 15) of four (4) the last codes of individual bit indication or continuation code, or the number of continuation code (1 to 16).For the system of ten two (12) time slots, need 96 bits, (every time slot eight (8) individual bits multiply by ten two (12) individual time slots).
A kind of method for reducing the bit number in the downlink transmission in the control channel is the fraction that only sends assignment information by control channel with signal, (hereinafter referred to as " information that sends with signal first "), and send the remainder of assignment information with down link data, (hereinafter referred to as " information that sends with signal afterwards ") will experience the AM﹠amp identical with described data with the rear information that sends with signal that down link data sends together; C processes, and has therefore reduced significantly by control channel and has transmitted the required air resource of assignment information.
In typical system, spend two (2) time slots recovering data, this is because this control information must be received and then processed to prepare to receive the data of reality.To be used for transmitting down link data, this information that sends with signal first comprises the designator for four (4) bits of the first time slot that uses to this essential therefore relaying of information that sends with signal first for the assignment information of the first two (2) individual time slot; The designator that is used for four (4) bits of next time slot; And each first and the designator at last yard that is used for the time slot that uses, (each time slot two (2) bit).Thereby, only have mostly to be ten six (16) bits most and to be used to send the information that sends with signal first with signal.Remaining assignment information is to be sent out together with down link data as the rear information that sends with signal.As a result, for ten six (16) yards and slot sytem ten two (12) time, only having ten six (16) bits is the information that sends with signal first, is sent with signal with down link data and send information with signal after the residue.
An advantage of this method is its use that allows any several object codes in the when gap in office.Yet this method need to be used for typically at least two time slot allocation, and the signaling of distribution that may all time slots.Although this has limited for the code of continuation code and has selected, with the use of code reallocation, this restriction is not remarkable.If best reallocation needs discontinuous code, then the use of this time slot UE code can be encapsulated to allow continuation code is only distributed to all UE again.
The second method 80 that is used for assigned code and time slot is used common continuation code, and reference flow sheet Fig. 5, and the simple declaration to the distribution of UE A, UE B and UE C code is described in Fig. 6.Each time slot is distributed the predetermined number object code potentially, for example ten six (16) individual codes.The predetermined number of code is assigned with an order or order, for example from 0 to 15, (step 82).The phase continuation code on the same group of distributing to a time slot must be assigned to all time slots for particular UE, (step 84).In order to use Fig. 6 to describe, UE A assigned slot 2,3 and 11, and in each time slot, be assigned with a yard 2-4.Yet because UE A has been assigned with code 2-4 in time slot 2, it can not only be assigned with code 2 or code 2-5 in other time slot.Similarly, UE B is assigned with a yard 0-13 in time slot 8 and 9; And UE C is assigned with code 11 in time slot 11 and 12.
In order to send this allocative decision with signal to UE, need this continuously first and the indication of last code and designator (step 86) of employed time slot of group.For the system of Fig. 6, for continuation code, need eight (8) bits, (four (4) bits are used for the number that first yard and four (4) bits are used for last code or code), and ten two (12) bits are used for the time slot of sign use).Each bit is corresponding to a time slot.Plant in the execution mode one (1), one (1) bit value indicates this time slot to be used, and zero (0) bit value indicates it not to be used.Therefore need altogether 20 (20) individual bits.
Send information and the rear use that sends information and method 80 with signal with signal first and reduced first number with signal transmission bit.This sends first and the last code that information must be indicated the first use time slot and back to back time slot and public order with signal first.For the system of Fig. 6, eight (8) bits are indicated the first two (2) time slot (four (4) bits are indicated each time slot) of this ten two (12) time slot, and eight (8) bits are used for the number of this starting and ending code or code.So, need first altogether ten six (16) bits of the information that sends with signal.
In order to reduce further the bit of this information that sends with signal first, five (5) bits can be used to the first two (2) individual time slot.Four (4) bits are indicated this first time slot that uses, and the 15 bit represents whether time slot then is used.As a result, ten six (16) or ten three (13) bits are the information that sends with signal first, and the information that then sends with signal is maximum ten (10) bits.
An advantage of second method is its number that has reduced first the information that sends with signal.A shortcoming is its flexibility that has reduced code and time slot allocation, and this is because each time slot that particular UE is used must be assigned with identical code.
The third method 90 that is used for code and time slot allocation is used the common continuation code of continuous slot, and reference flow sheet Fig. 7, and is described for this yard simple declaration that is distributed among Fig. 8 of UE A, UE B and UE C.Each time slot is distributed the predetermined number object code potentially, for example ten six (16) yards.This predetermined number object code is assigned with an order or order, for example from 0 to 15, (step 92).In this method, not only same code is assigned to each employed time slot, and only has continuous time slot can be assigned with (step 94).In order to use Fig. 8 to describe, UE A is dispensed on the code 2-4 among the time slot 5-7.Yet UE A can not be dispensed on the code 2-4 in the time slot 5,6 and 8, unless time slot 7 also is assigned with.Similarly, UE B is dispensed on the code 0-13 in time slot 8 and 9.UEB can not be dispensed in any other time slot still less or the code of greater number, can not be dispensed in time slot 11 or 12 the code 0-13, unless time slot 10 is assigned with.UE C is dispensed on the code 11 in the time slot 11.
In order to send this allocative decision with signal to UE, the indication (or number) of first and last time slot of the indication (or number) of first and last assigned code of the assigned code in the time slot of each distribution and the time slot that distributes is sent (step 96) with signal.System for Fig. 8, need eight (8) bits to be used for the distribution of code and the distribution that eight (8) bits are used for time slot, (four (4) individually are used for the first time slot and four (4) individual for last time slot, or the number of time slot), altogether ten six (16) individual bits.
The use of the information that sends with signal first and the rear information that sends with signal and the method 90 has reduced first the number with the bit of signal transmission.In the method 90, ten three (13) bits must be sent with signal first before data, (eight (8) the individual codes that use for time slot, four (4) individually are used for first and use time slot, and whether one (1) bit indicates other time slot to be used).If other time slot is used, then indicates four (4) bits of the number of last time slot or time slot to be used as the rear information and date one that sends with signal and reinstate signal and send.
This third method has limited the quantity of signaling, but take the flexibility of the distribution of code/time slot as cost.
The 4th kind of method 100 that is used for assigned code and time slot distributed to UE with all codes of time slot, and reference flow sheet Fig. 9 and in Figure 10 the simple declaration for this distribution of UE A, UE B and UE C be described.In the method, the codes of all in the described UE assigned slot (step 102).Use Figure 10 describes, and UE A is assigned with the code of all time slots 2 and 5, UE B assigned slot 8 and 9 all the code, and UE C assigned slot 11 all the code.
In order to send this allocative decision with signal to UE, the designator of time slot that needs distribute, (step 104).For the system of Figure 10, this designator is ten two (12) bit fields, has each bit and represents whether a specific time slot is used.Typically, UE knows the maximum number of code in the time slot.Yet if do not know the maximum number of code, the designator of the number of code is sent out, (also being the part of step 104), and for example four (4) bits indication maximum quantity is the code of scope from 0 to 16.
The use of the information that sends with signal first and the rear information that sends with signal and the method 100 has reduced first the number with the bit of signal transmission.In the method 100, the designator of this first two time slot that uses is sent with signal.For the system of Figure 10, these two time slot designators are eight (8) bits.Residue distributes the designator of time slot to be sent with signal as the rear data of information in the first time slot that send with signal.Replacedly, in order further to reduce the number of the bit that sends, can use first five (5) bits of the information that sends with signal.Whether four (4) bits indicate this first time slot and the 5th bit to indicate ensuing time slot to be used.
In order to send this allocative decision with signal to UE, the designator (or number) of first and last time slot of the time slot of use is sent (step 114) with signal.For the system of Figure 11, need eight (8) bits, (four (4) individual the first time slots that uses and four (4) individual for last time slot or the number of time slot that is used for).
The use of the information that sends with signal first and the rear information that sends with signal and the method 110 has reduced first the number with the bit of signal transmission.In the method 110, only five (5) individual bits are as being sent out with the information of signal transmission first.Whether the code that four (4) individual bit indications first are used and the 5th bit indication time slot then are used (step 74).If should be used by time slot then, then four (4) bits are sent to indicate last time slot or the number of time slot as the rear information that sends with signal with the down link data of transmission with signal.
All codes in 120 pairs of all time slots of the 6th kind of method are numbering continuously, and is described with reference to the simple declaration that distributes for this code of UE A, UE B and UE C among the flow chart of Figure 14 and Figure 15.In the method 120, all codes in all time slots are numbered (step 122) continuously, and then this UE is assigned with needs number object code (step 124).In order to use Figure 15 to describe, UE A is assigned with a yard 69-99, and UE B is assigned with yard 129-142 and UE C is assigned with a yard 162-181.
For this allocative decision is sent to UE with signal, need this first and the indication (step 126) of last code.For the system of Figure 15, this designator is ten six (16) bits, (eight (8) bits are used for this first yard and eight (8) bits and are used for last yard).Replacedly, this designator of first yard can be sent with signal with the number of code; Especially at the number of this yard hour.
The use of the information that sends with signal first and the rear information that sends with signal and the method 120 has reduced before the number with the bit of signal transmission, in the method 120, ten three (13) bits must be sent with signal as the information that sends with signal first, (eight (8) bits be used for first yard and five (5) bits are used for the number of the code of the first two (2) time slot).If more yards are used, then the counting of code can be replaced in the rear information that sends with signal.
Summarize in the table of Figure 13 with signal and send the required bit of code/time slot allocation for six (6) kind schemes of ten six (16) yards and ten two (12) slot sytems when available.
Although the present invention can be implemented by a lot of physical systems, a kind ofly describe with reference to Fig. 1 be used to implementing system of the present invention, Fig. 1 illustrates a kind of simple wireless hybrid TDMA/cdma communication system for the physical channel configuration signal.Preferred embodiment be used to the data of downlink transmission, high speed downlink channels for example, but the physical channel configuration signal also can be used to other execution mode, for example up link.
The down link data that is conveyed to specific UE 24 is distributed at least one code and at least one time slot by resource management apparatus 28.This resource management apparatus 28 can be arranged in radio network controller (RNC) or node-b 20.This resource management apparatus 28 comes assigned code and time slot in the mode of hereinafter describing in detail.The code that distributes and time slot are sent to signalling transmitter 30 and the AM﹠amp in the base station 22; C controller 32.This signalling transmitter 30 also comes layout transmission code and gap information in the mode of hereinafter describing in detail.
Down link data in Data Modulation and transmission device 34 modulation, propagation and the time-division multiplex transmission time slot and the code that is distributed by resource management apparatus 28.Data of modulating and broadcast via wireless radio channels 26 by antenna 36 or antenna array with the information that signal sends.
In specific UE 24, the down link data of transmission and the information that sends with signal are received by antenna 38.Signaling receiver 40 recovers the information that sends with signal and is relayed to AM﹠amp; C controller 42.This AM﹠amp; C controller 42 determines that modulation and the indication that will use are used for to code and the time slot of the down link data of data detection device 44.A kind of potential data detection device 44 is the relevant checkout gears that use channel estimating apparatus, but other data detection device also can be used.This data detection device 44 uses from AM﹠amp; The time slot of C controller 42 and code information are recovered down link data.
Fig. 2 illustrates a kind of single system for the uplink physical channel configuration signal.This resource management apparatus 28 assigned code/time slot is to be used for the uplink data of particular UE.This assigned code/time slot is sent to the signalling transmitter 30 in the base station 22.Code and gap information that this signalling transmitter 30 comes layout to be transmitted in the mode of hereinafter describing in detail.This information exchange that sends with signal is crossed transducer 48 or separator transmission and is propagated by wireless radio channels 26 by antenna 36 or antenna array.
This particular UE 24 receives the information that sends with signal.Received information is delivered to signaling receiver 40 by transducer 50 or separator.Recovered by signaling receiver 40 with the information that signal sends, and be relayed to AM﹠amp; C controller 42.This AM﹠amp; C controller 42 relay uplink codes and time slot allocation are to Data Modulation and transmission device 52.This Data Modulation and transmission device 52 are according to by AM﹠amp in the time slot; The guiding of C controller 42 and with the code modulation that is sent by base station 22 usefulness signals, propagate and the time-division multiplex transfer uplink data, the data of modulating by UE antenna 38 via wireless radio channels 26 by transducer 50 or separator transmits and propagated by wireless radio channels 26 by UE antenna 38.
The data of transmitting are received by antenna for base station 36 or antenna array.The data communication device that receives crosses transducer 48 or separator is passed to data detection device 46.A kind of possible data detection device 34 is the relevant checkout gears that use channel estimating apparatus, but other checkout gear also can be used.Base station AM﹠amp; C controller 32 receives code and the time slot allocation from resource management apparatus 28.The code that data detection device 46 uses distribute and time slot are by AM﹠amp; 32 guiding of C controller recover uplink data from the uplink signal that receives.
Although according to preferred embodiment describing, the variation of within the scope of the present invention other it will be apparent to those skilled in the art that in the present invention.
Claims (5)
1. wireless hybrid TDMA/CDMA TDMA/CDMA user equipment (UE), this UE comprises:
The signaling receiver, be configured to receive with the information with the signal transmission of the code that recovers described UE and time slot allocation and communicate by letter with support RF, and recover the identifier of time slot of a plurality of distribution and first yard and the indication of last code of one group of continuation code from the described information that sends with signal, should be identified by an identifier that is associated with this last code by last code, and same group of continuation code is assigned to each time slot in the time slot of described a plurality of distribution; And
Data detection device is communicated by letter with described signaling receiver.
2. UE according to claim 1, the wherein said information that sends with signal comprises the time slot mark symbol for each selected time slot.
3. UE according to claim 2, wherein said time slot mark symbol is one group of bit, each bit is associated with a time slot.
4. UE according to claim 1, the communication of wherein supporting is the communication in the down link.
5. UE according to claim 1, the communication of wherein supporting is the communication in the up link.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US29071701P | 2001-05-14 | 2001-05-14 | |
| US60/290,717 | 2001-05-14 | ||
| US10/029,651 | 2001-12-21 | ||
| US10/029,651 US6973064B2 (en) | 2001-05-14 | 2001-12-21 | Method and apparatus for minimizing the amount of data necessary to signal code and timeslot assignments |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02809882.XA Division CN100568768C (en) | 2001-05-14 | 2002-05-13 | Minimize method and apparatus with signaling code and time slot allocation desired data amount |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101656568A CN101656568A (en) | 2010-02-24 |
| CN101656568B true CN101656568B (en) | 2013-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910167264 Expired - Lifetime CN101656568B (en) | 2001-05-14 | 2002-05-13 | User equipment for wireless hybrid TDMA/CDMA |
| CN 200910167265 Expired - Lifetime CN101656569B (en) | 2001-05-14 | 2002-05-13 | Method and apparatus for minimizing data amount needed by signaling code and time slot assignments |
| CN 200910167263 Expired - Lifetime CN101656567B (en) | 2001-05-14 | 2002-05-13 | Method and transmitter for signaling code and time slot assignments |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910167265 Expired - Lifetime CN101656569B (en) | 2001-05-14 | 2002-05-13 | Method and apparatus for minimizing data amount needed by signaling code and time slot assignments |
| CN 200910167263 Expired - Lifetime CN101656567B (en) | 2001-05-14 | 2002-05-13 | Method and transmitter for signaling code and time slot assignments |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993015573A1 (en) * | 1992-01-29 | 1993-08-05 | Millicom Holdings (Uk) Ltd | Cdma/tdma communication system |
| US5481533A (en) * | 1994-05-12 | 1996-01-02 | Bell Communications Research, Inc. | Hybrid intra-cell TDMA/inter-cell CDMA for wireless networks |
| CN1232328A (en) * | 1998-03-06 | 1999-10-20 | 朗迅科技公司 | Time division multiple access communication system |
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2002
- 2002-05-13 CN CN 200910167264 patent/CN101656568B/en not_active Expired - Lifetime
- 2002-05-13 CN CN 200910167265 patent/CN101656569B/en not_active Expired - Lifetime
- 2002-05-13 CN CN 200910167263 patent/CN101656567B/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993015573A1 (en) * | 1992-01-29 | 1993-08-05 | Millicom Holdings (Uk) Ltd | Cdma/tdma communication system |
| US5481533A (en) * | 1994-05-12 | 1996-01-02 | Bell Communications Research, Inc. | Hybrid intra-cell TDMA/inter-cell CDMA for wireless networks |
| CN1232328A (en) * | 1998-03-06 | 1999-10-20 | 朗迅科技公司 | Time division multiple access communication system |
Non-Patent Citations (2)
| Title |
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| Motorola.High Speed Downlink Packet Access (HSDPA) Overview.《TSG-RAN Working Group 1 and 2 Adhoc TSGR1/R2-12A010020》.2001, * |
| Nokia.HSDPA related signaling parameters in downlink.《TSG-RAN WG1/WG2 adhoc on HSDPA-Tdoc 12A010005》.2001, * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101656567A (en) | 2010-02-24 |
| CN101656568A (en) | 2010-02-24 |
| CN101656569B (en) | 2013-08-14 |
| CN101656567B (en) | 2012-12-19 |
| CN101656569A (en) | 2010-02-24 |
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