CN101502158B - Base station, user device and method used in mobile communication system - Google Patents
Base station, user device and method used in mobile communication system Download PDFInfo
- Publication number
- CN101502158B CN101502158B CN200780029328.4A CN200780029328A CN101502158B CN 101502158 B CN101502158 B CN 101502158B CN 200780029328 A CN200780029328 A CN 200780029328A CN 101502158 B CN101502158 B CN 101502158B
- Authority
- CN
- China
- Prior art keywords
- user
- resource block
- control channel
- channel
- base station
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
A base station used in a mobile communication system employing a single carrier scheme for uplink transmission is disclosed. The base station includes a scheduler configured to allocate one or more uplink resource blocks to a user device according to uplink channel conditions of the user device; and a reporting unit configured to report scheduling information indicating the allocation result to the user device. An uplink control channel of the user device is mapped to a resource block in a transmission frame including multiple resource blocks according to a hopping pattern based on the scheduling information; and the uplink control channel is mapped to a resource block according to the same hopping pattern regardless of whether the uplink control channel is associated with a user data channel.
Description
Technical field
The present invention relates to the technical field of mobile communication, particularly the base station in the mobile communication system and method.
Background technology
In this technical field, the research and development of relevant follow-on communication system are developing rapidly.In the communication system of current anticipation, from suppressing peak power and average power ratio (PAPR:Peak-to-Average Power Ratio), the viewpoint of expand the coverage area simultaneously (coverage) is used the single carrier mode to up link.
With the form of the channel (shared channel) that shares between a plurality of users, suitably distribute up and down link Radio Resource according to each user's channel status etc.Determine to distribute the processing of content to be called as scheduling.In order suitably to carry out the scheduling of up link, each user's set sends to the base station with pilot channel, and the channel status of up link is estimated in the base station according to its quality of reception.In addition, for the scheduling of down link, the base station sends pilot channel to user's set, and user's set will represent the information (channel quality indicator CQI: Channel Quality Indicator) report to the base station of the quality of reception of this pilot channel.Based on the CQI from each user's set report, the channel status of down link is estimated in the base station.Relevantly carry out frequency scheduling so that the employed resource of the control channel of certain user's set (time and frequency) is comply with the technology of the saltus step pattern (hopping pattern) of regulation, for example be documented in 3GPP, R1-060320, " L1/L2 ControlChannel Structure for E-UTRA Uplink " is among the 2006.2.13.
Summary of the invention
The problem that invention will solve
In ascending control channel, the control information (the 2nd control information) that the control information that must transmit in uplink data channels with the road (must control information or the 1st control information) is arranged and have or not uplink data channels all to be transmitted.In the 1st control information, indispensable information in the demodulation of the data channel that modulation system, channel encoding rate that comprises data channel etc. is such.In the 2nd control information, comprise the information of the transmission confirmation (ACK/NACK), resource allocation request etc. of CQI information, downstream data channel.At above-mentioned 3GPP, R1-060320, " L1/L2 Control Channel Structure for E-UTRAUplink ", 2006.2.13 in, as principle, the ascending control channel that comprises the 2nd control information of certain user's set, saltus step pattern according to the rules was transmitted with various times and frequency.But, in the situation that this user device transmission uplink data channels comprises the ascending control channel Resource Block transmission identical with data channel of the 1st control information.At this moment, the control channel that comprises the 1st control information is not comply with the saltus step pattern of regulation, is sent simply in the transmission of data channel with the road.
, with the different in kind of the data channel that can expect to retransmit, in the situation that just in case well demodulation, the control channel that comprises the 1st and the 2nd control information is difficult to expectation and retransmits.With regard to high-quality and the necessity transmitted reliably, control channel is larger than the necessity of data channel.
Even when the scheduling of uplink data channels, it is good that relevant this user's set is judged as certain Resource Block, and distribute, and communication conditions is perhaps different when in fact sending from user's set later on.That is, namely use the Resource Block identical with uplink data channels to transmit ascending control channel, ascending control channel also not necessarily can transmit as expectation well.
Problem of the present invention is in the mobile communication system to up link employing single carrier mode, to improve ascending control channel with the reliability of required mass transport.
Be used for solving the scheme of problem
In the present invention, be provided at up link is adopted the base station of using in the mobile communication system of single carrier mode.The base station comprises: according to the up channel state of relevant each user's set, the more than one resource block assignments of up link is given the scheduler of each user's set; And the schedule information that will represent the planning content that resource is distributed is notified the parts to user's set.The ascending control channel of certain user's set is mapped according to described schedule information, to import the saltus step pattern of (draw) regulation in comprising the transmission frame of a plurality of Resource Block.Described ascending control channel no matter whether with the road in user data channel, all by with identical saltus step mode map.
The invention effect
According to the present invention, up link is adopted in the mobile communication system of single carrier mode, can improve ascending control channel with the reliability of required mass transport.
Description of drawings
Fig. 1 is the user's set that uses in one embodiment of the invention of expression and the figure of base station.
Fig. 2 is the figure that utilizes example of the frequency band that uses in the mobile communication system of expression.
Fig. 3 is the figure that utilizes example of the frequency band that uses in the mobile communication system of expression.
Fig. 4 be expression by one embodiment of the invention transmission, the control channel of certain user's set and the figure of data channel.
Fig. 5 is the chart of the correlation between expression resource block size, dispatching effect, signaling consumption and the level of resources utilization.
Fig. 6 is the figure that utilizes example of the frequency band that uses in the mobile communication system of expression.
Fig. 7 is the figure that utilizes example of the frequency band that uses in the mobile communication system of expression.
Fig. 8 is the block diagram of transmitting element of the relevant base station of expression one embodiment of the invention.
Fig. 9 is the block diagram of the user's set of expression one embodiment of the invention.
Figure 10 is the block diagram of transmitting element of the relevant user's set of expression one embodiment of the invention.
Figure 11 is the figure that utilizes example of the frequency band that uses in the mobile communication system of expression.
Figure 12 is the figure that utilizes example of the frequency band that uses in the mobile communication system of expression.
Figure 13 is the figure of expression transmission frame example.
Figure 14 is the figure of the frame structure example of expression up link.
Label declaration
21 send the bandwidth determining means
22 send the frequency band determining means
23 send the frequency band administrative unit
24 yards allocation units
25 yards administrative units
31 transmission buffers
The 32OFDM transmitting element
33 schedulers
34 pattern determining meanss
35 memories
The 41OFDM receiving element
42 resource discriminating unit
43 configuration mode identifying units
44 memories
The 45CQI determination unit
46 transmitting elements
131 transmitted signal sequence output units
132 discrete Fourier transform unit
133 data-mapping unit
134 inverse fourier transform unit
135 send frame timing adjustment unit
231 pilot channel generation units
233 shared control channel generation units
234 shared data channel generation units
235 Multiplexing Units
236,241 discrete Fourier transform unit
237,242 map unit
238,243 invert fast fourier transformation unit
244 separative elements
The 246CQI determination unit
247 schedulers
Embodiment
In the embodiment of following explanation, with the various channels of ul transmissions.These channels roughly are divided into: (A) up shared data channel, (B) shared control channel reach (C) pilot channel.
(A) [up shared data channel] (Uplink Shared Data Channel)
Up shared data channel (or uplink data channels) comprises both sides or a side of the control message of business datum and the 3rd layer.In control message, also can include information, the repeating transmission of closing switching (handover) and control required information etc.In up shared data channel, according to time and frequency both sides' scheduling, distribute more than one Resource Block (being also referred to as frequency chunks (frequency chunks)).In this case, distributed by base station planning (scheduling) resource, with in time domain or time and both zones of frequency, the user who is associated with better propagation path (channel) can preferentially send grouping.
(B) [up shared control channel] (Uplink Shared Control Channel)
The control message (FFS) of up shared control channel (or ascending control channel) transmitting physical control message and the second layer.Therefore, ascending control channel is also referred to as the L1/L2 control channel.Dispatch the base station, with to each user's set distributes resource blocks, avoids the contention (contention) of shared control channel.For up shared control channel, the base station depends on number of users and dispatches.In order to keep packet error rate low, high-precision transmission power control is carried out in expectation.In addition, send up shared control channel in wider frequency range, with acquisition frequency diversity effect, thereby expectation realizes receiving the high-quality of grouping.
Specifically, up shared control channel comprise in the following control information more than one: control information, (3) of the descending shared data channel that the relevant scheduling in control information, (2) of the up shared data channel that (1) relevant scheduling is complete is complete are used for changing the control information that the control information of content of scheduling of up shared data channel and (4) are used for carrying out the scheduling of descending shared data channel.
(1) relevant control information of dispatching complete up shared data channel is only sent in this up shared data channel with the road when sending up shared data channel.This control information is also referred to as associated control channel (associated control channel) or essential control information, it comprises for the information (modulation system, channel encoding rate etc.) of shared data channel being carried out necessity of demodulation, relevant transmission block size (size), retransmits the information of control etc., for example perhaps only just can show with the amount of information about 14 bits.In retransmitting control information, such as also comprising expression by the information of the using method that is grouped into packet retransmission or the information of new grouping, expression packet retransmission of up shared data channel transmission etc.For example, the 1st using method is, the data of packet retransmission are identical with the data (for example, sending for the first time data) of the grouping that sent in the past, and in the 2nd using method the data of packet retransmission also can from before the data of grouping of transmission different.In the latter case, can together divide with the redundant information of error correction coding and be combined into.
(2) in the complete descending shared data channel of relevant scheduling with the control information on road, only under travelling carriage receives the situation of the descending shared data channel that sends from the base station, be sent to the base station.Can this control information represent suitably receive grouping (ACK/NACK) with down link, available 1 bit performance in the simplest situation.
(3) control information of content that is used for changing the scheduling of up shared data channel is sent out, in order to buffer sizes (buffer size) and/or the transmitted power of travelling carriage are notified to the base station.This control information also can regularly or aperiodically be sent out.For example, can send from travelling carriage in the moment of buffer sizes and/or transmitted power change.The scheduling content also can be changed according to such changed condition of travelling carriage in the base station.The situation of buffer sizes and transmitted power, the amount of information performance about for example perhaps can enough 10 bits.
(4) control information that is used for carrying out the scheduling of descending shared data channel is sent out, so that (channel quality indicator CQI: channel quality indicator) notice is to the base station with the channel quality information of down link.CQI for example also can be the reception SIR that is measured to by travelling carriage.This information also can regularly or aperiodically be sent.For example can report to the base station in the moment that channel quality changes.The amount of information performance of this control information about for example perhaps can enough 5 bits.
(C) [pilot channel]
Pilot channel can send from travelling carriage with time division multiplexing (TDM), frequency division multiplexing (FDM), code division multiplexing (CDM) or their compound mode.But from reducing the viewpoint of peak power and average power ratio (PAPR), the TDM mode is used in expectation.By making pilot channel and data channel with TDM mode quadrature, can correctly separate pilot channel at receiving terminal, can help to improve precision of channel estimation.
Below, the present invention is divided into several embodiment and illustrates, but the differentiation of each embodiment is not internal in the present invention, can use as required plural embodiment yet.
Fig. 1 represents the user's set (UE:user equipment) of one embodiment of the invention and the general block diagram of base station (NodeB).In Fig. 1, describe pilot channel generation unit 231, shared control channel generation unit 233, shared data channel generation unit 234, Multiplexing Unit 235, discrete Fourier transform unit (DFT) 236, map unit 237 and invert fast fourier transformation unit 238 are arranged.
Pilot channel generation unit 231 generates the pilot channel that is used by up link.
Shared control channel generation unit 233 generates the shared control channel that can comprise various control informations.As mentioned above, in shared control channel, comprise: (1) essential control information; (2) correctness of the reception of expression down channel is the information of positive response (ACK) and negative response (NACK); (3) for the information that changes the content of dispatching; And the channel condition information (CQI) of the quality of reception of (4) expression downlink pilot frequency channel etc.
Shared data channel generation unit 234 generates the shared data channel that sends with up link.Shared data channel and shared control channel are carried out Data Modulation with the modulation system of indication, are carried out chnnel coding with the coded system of indication.
Multiplexing Unit 235 is according to the schedule information from the base station notice, various more than one channels are carried out multiplexing, and output (schedule information also is notified to the unit 231,233,234 that forms each channel).Can carry out various channel mappings in up link, therefore not necessarily need multiplexing illustrated all channels, as required, more than one channel is re-used.Generally in illustrated example, Multiplexing Unit 235 carries out time-multiplexed processing, the allocation process that map unit 237 is carried out to frequency component.
The signal (being the signal after multiplexing in illustrated example) that discrete Fourier transform unit (DFT) 236 will be input in it carries out Fourier transform.In this stage that signal is processed, signal is for discrete digital value, so carry out discrete Fourier transform (DFT).Thus, a series of burst of arranging with time sequencing in the frequency domain performance.
Signal component after invert fast fourier transformation unit 238 will shine upon is carried out invert fast fourier transformation, exports a succession of burst of arranging with time sequencing.
The general configuration that has also represented the base station of one embodiment of the invention among Fig. 1.In the base station of Fig. 1, comprise discrete Fourier transform unit (DFT) 241, map unit 242, invert fast fourier transformation unit 243, Multiplexing Unit 244, CQI determination unit 246 and scheduler 247.
The signal (being the reception signal in the illustrated example) that discrete Fourier transform unit (DFT) 241 will be input in it carries out Fourier transform.Thus, a series of burst of arranging with time sequencing in the frequency domain performance.
Extract the subcarrier component of regulation the signal of map unit 242 behind Fourier transform.Thus, separation has for example been carried out multiplexing signal with local formula FDM or distributed FDM mode.
Signal component after invert fast fourier transformation unit 243 will separate is carried out invert fast fourier transformation, exports a succession of burst of arranging with time sequencing.
The more than one channel that the generation unit of each channel of user's set generates is input to DFT 236 by Multiplexing Unit 235 time-multiplexed (by suitably switching), is transformed to the signal of frequency domain.Signal after the conversion suitably is mapped as frequency component by map unit 237, is input to IFFT 238, is transformed to clock signal (time-series signal).After, via the such processing components of not shown radio-cell by wireless transmission.This signal is received by the base station.Receive signal and be imported into DFT 241, be transformed to the signal of frequency domain.Signal after the conversion is the signal that is mapped as frequency component, but by separating the signal before map unit 242 is separated into mapping.Signal after the separation is transformed to clock signal by IFFT 243, and the burst after time-multiplexed is suitably separated by separative element 244, carries out further demodulation process etc. by not shown processing components.Based on the pilot channel that receives, measure the up channel state, carry out the scheduling of up link, and the expression resource distributes the schedule information of content to be notified to user's set.
Fig. 2 represents the frequency band that certain mobile system uses.The frequency band (being also referred to as Whole frequency band or band system band) that offers system comprises a plurality of system frequency pieces, and the more than one Resource Block that user's set can use the system frequency piece to comprise communicates.In illustrated example, band system band is 10MHz, and the system frequency piece is 5MHz, comprises two system frequency pieces in the band system band.For simplicity of illustration, there is not descriptive system frequency chunks 2.Resource Block is 1.25MHz, and a system frequency piece comprises four Resource Block.Can use in two system frequency pieces which for user's set, be decided according to being in number of users in the communication etc. in the bandwidth of communicating by letter of user's set and the system by the base station.The frequency band that the bandwidth of system frequency piece can be communicated by letter as all user's sets that the possibility of communicating is arranged in the system designs.In other words, the bandwidth of system frequency piece decides as the maximum transmission frequency band for other user's set of lowermost level of envisioning.Therefore, can only only be assigned with the user's set of the frequency bands for communication of 5MHz either party system frequency piece, but also can allocated frequency band, so that the user's set of the frequency bands for communication of available 10MHz can use both sides' system frequency piece.User's set uses the more than one Resource Block that comprises in the system frequency piece that distributes to send ascending pilot channel.The base station determines based on the incoming level of ascending pilot channel which (scheduling) the more than one Resource Block that user's set uses in the transmission of shared data channel is.The content (schedule information) of scheduling with descending shared control channel or other channel notification to terminal.User's set uses the Resource Block that distributes to send up shared data channel.
Fig. 3 represents that certain user's set sends the time dependent example of Resource Block of shared control channel.In the drawings, the up shared control channel of this user's set is sent with the part with hypographous Resource Block.The spendable Resource Block of this user's set follow by to the lower right to certain frequency hopping pattern of representing of arrow, the content of saltus step pattern is just known before can beginning to communicate by letter between base station and user's set, also can notify to user's set from the base station as required.Owing to carrying out frequency hopping, not only using specific Resource Block, and use various Resource Block, so can keep the average signal quality of up shared control channel.Illustrated frequency hopping pattern only is a simple example, also can adopt various patterns.In addition, not only prepare the candidate of the frequency hopping pattern of a kind, and can prepare the candidate of the frequency hopping pattern of a plurality of kinds, suitably change pattern.
In illustrated example, the 3rd the 3rd subframe on time sequencing (unit's of being also referred to as transmission time interval (TTI)), this user's set is except must also all sending control information the control information.In the 3rd subframe, use the Resource Block of right-hand member to send up shared data channel, also send shared control channel with this Resource Block.In the 3rd subframe, use the Resource Block different from the frequency hopping pattern, but from the base station with the information of shared control channel notice about such change.Also can by whether uplink data channels have been distributed Resource Block, thus determine in advance with special-purpose Resource Block transmitting uplink control channel, or transmit with uplink data channels.
, as mentioned above, must control information with the character of the control channel of in addition control information (the 1st and the 2nd control information) from can expect that the data channel of retransmitting is different, its be difficult in the situation that just in case well demodulation expectation retransmit.With regard to high-quality and reliably the transmission necessity, control channel is larger than the necessity of data channel.
Even relevant this user's set is judged as certain Resource Block when good when the scheduling of uplink data channels, and distributes, communication conditions difference perhaps when in fact sending from user's set later on.That is, namely use the Resource Block identical with uplink data channels to transmit ascending control channel, ascending control channel also not necessarily can transmit as expectation well.
Fig. 4 represents to utilize control channel that embodiments of the invention transmit and the situation of data channel.The situation that the ascending control channel of certain user's set saltus step pattern according to the rules is transmitted is identical with situation shown in Figure 3.The 4th Resource Block has been assigned with the situation of data channel also the example with shown in Figure 3 is identical in the 3rd subframe.But in the 3rd subframe, control channel is different from the example of Fig. 4 by the aspect of transmitting with the 3rd Resource Block according to the saltus step pattern.This control channel also comprise by the 4th Resource Block transmission, with the essential control information of road in uplink data channels, and also comprise as required in addition control information.In the present embodiment, no matter have or not uplink data channels, always according to the rules saltus step mode transfer ascending control channel.At first determine the saltus step pattern, with by at various frequencies and time transmitting control channel, disperse thereby the interference that this channel is subject to reaches the interference that other channels are produced, control channel transmits with required quality reliably.As the present embodiment, by adhering to the saltus step pattern, the effect that can guarantee to be expected by saltus step (making the interference that this channel is subject to and the effect that the interference that other channels produce is disperseed).Shown in the 3rd subframe of Fig. 4, if different between the transmission period of control channel and data channel, then by carrier frequency being switched to the frequency of the 4th Resource Block in the 3rd subframe from the frequency of the 3rd Resource Block, thereby user's set can suitably send these channels with the single carrier mode.
Be fixed to one at existing resources in mobile communication system block size.The present inventor is conceived to the correlation between resource block size, dispatching effect, signaling consumption and the level of resources utilization in basic research of the present invention.
Fig. 5 is the chart of this correlation of expression.Shown in the 1st row of chart, if resource block size is less, then can be according to the quality of channel status distributes resource blocks meticulously, can greatly expect the raising effect as the throughput of entire system.On the contrary, if resource block size is larger, then be difficult to fine distributes resource blocks, diminish as the raising degree of the throughput of entire system.Usually, channel variation is larger than the change of time orientation in the change of frequency direction, but for the relation between resource block size and the throughput, the whichever direction all produces same tendency.
Shown in the 2nd row of chart, in the situation that resource block size is less, owing to there being a plurality of Resource Block, increase so represent the amount of information of the schedule information which Resource Block is used by which user.That is, worry that signaling consumption increases.With respect to this, in the situation that resource block size is larger, because number of resource blocks is also few, so also can make signaling consumption little.
Shown in the 3rd row of chart, in the situation of the transfer of data of carrying out less data volume (for example, the transfer of data of control channel), if resource block size is larger, then worry to produce the waste of resource.This is because a Resource Block is used by a user.In this respect, if resource block size is moderately little, then also can make such waste few.
For example, as shown in Figure 6, suppose that the control channel of certain user's set is with being with hypographous Resource Block transmission.The amount of information of control channel is generally less, so worry too to waste resource in each Resource Block.And the resource that data channel distributes also reduces.However, as shown in Figure 7, reducing number of resource blocks or the allocation frequency that the ascending control channel of certain user's set distributes neither good plan.If reduce the allocation frequency of Resource Block, then hindered and promptly sent ascending control channel, thereby worried that the transmission that transmits the such control information that is required instantaneity of confirmation (ACK/NACK) regularly is delayed, data transmission efficiency reduces.
So, from the comprehensive viewpoint such as the minimizing of the raising effect of the throughput of entire system, signaling consumption and the level of resources utilization, be difficult to determine suitable resource block size.The 2nd embodiment of the present invention also processes such problem.Specifically, the Resource Block by preparing to vary in size suitably separately uses them, thereby signaling consumption is reduced, and realizes simultaneously raising and the efficient utilization of resource of the data transfer efficient of various size.
Fig. 8 represents the block diagram of transmitting element of the relevant base station of one embodiment of the invention.Transmission buffer 31, OFDM transmitting element 32, scheduler 33, pattern determining means 34 and memory 35 have been described in Fig. 8.
The descending transmission data of transmission buffer 31 storages, and according to schedule information output transmission data.
Pattern determining means 34 is based on the data volume (data size) that sends data and both or the side of CQI, adjustresources block size.Prepared in the present embodiment the Resource Block of two kinds of sizes, each user's set has been distributed one of them or boths' Resource Block.
The configuration mode of memory 35 storage resources pieces.The back is discussed the configuration mode of relevant Resource Block and is used example.
Fig. 9 represents the block diagram of receiving element of the relevant user's set of one embodiment of the invention.In Fig. 9, OFDM receiving element 41, resource discriminating unit 42, configuration mode identifying unit 43, memory 44, CQI determination unit 45 and transmitting element 46 have been described.
Configuration mode identifying unit 43 from memory 44, extract with from configuration mode corresponding to the mode number of base station notice, and with its context notification to resource discriminating unit 42.
Transmitting element 46 forms from the transmitted signal of the up link of antenna wireless transmission.
Figure 10 represents the detailed functional block diagram of transmitting element 46.In Figure 10, describe transmitted signal sequence output unit 131, discrete Fourier transform unit (DFT) 132, data-mapping unit 133, inverse fourier transform unit 134 and sent frame timing adjustment unit 135.
Transmitted signal sequence output unit 131 generates or output transmitted signal sequence.In the transmitted signal sequence, also can comprise any channel by ul transmissions.Especially, in the present embodiment, transmitted signal sequence output unit 131 output ascending control channel and uplink data channels.Comprising in control channel must be with the control channel of road in uplink data channels (must control channel or the 1st control channel) and the control channel (the 2nd control channel) that has or not uplink data channels all to be transmitted.Illustrated CQI, ACK/NACK belong to the 2nd control channel.
132 pairs of transmitted signals of discrete Fourier transform unit (DFT) are carried out Fourier transform, the signal of time domain are transformed to the signal of frequency domain.
Data-mapping unit 133 shines upon according to indication parameter, so that transmitted signal has the component of expectation at frequency domain.Comprise in the indication parameter and send bandwidth, transmission frequency band (frequency), repeat factor etc.Data-mapping unit 133 is mapped to transmitting signal components on the frequency axis, so that the transmitted signal of the different user's set of bandwidth is by distributed FDM mode quadrature reciprocally.
The signal that inverse fourier transform unit 134 will have the frequency component of expectation carries out invert fast fourier transformation, and it is transformed to the signal of time domain.
Send frame timing adjustment unit 135 and adjust the transmission timing of transmitted signal, output transmitted signal.Especially, in the situation that carry out time division multiplexing (TDM), the sending time slots by this adjustment unit 135 and our station carries out suitably signal and sends.
Below with reference to Fig. 8, Fig. 9 and Figure 10 action is described.Descending transmission data are stored in the transmission buffer 31, be imported into the OFDM transmitting element according to down dispatch information, via chnnel coding, Data Modulation, to processing such as the mapping of Resource Block, invert fast fourier transformations and be transformed to the transmitted signal that wireless transmission is used, and be sent out.The schedule information of the scheduling of relevant up link is notified to user's set by down control channel.For any link up and down, schedule information is allocated channel coded system, data modulation and Resource Block etc. all.In this case, use as required in the present embodiment the Resource Block that varies in size.
User's set is based on the employed configuration mode in base station, restores to received signal and forms transmitted signal.Use the configuration mode of which type of Resource Block, determined by the pattern determining means 34 of the base station of Fig. 8, determine that context notification is to scheduler 33.Then, this information (specifically, mode number) and schedule information are notified to user's set by suitable control channel.The control channel that user's set receives by recovery extracts mode number and schedule information.Mode number offers the configuration mode identifying unit 43 of Fig. 9.Configuration mode identifying unit 43 is notified the information with the relevant configuration mode of this number appointment to resource discriminating unit 42 based on the mode number of notice.Resource discriminating unit 42 has determined to comprise the Resource Block of the data that mail to our station according to the downstream arrangements pattern and the down dispatch information that are determined, and notice is to OFDM receiving element 41.In addition, resource discriminating unit 42 is determined the Resource Block by the up link use according to the up configuration mode and the uplink scheduling information that are determined, and notice is to transmitting element 46.OFDM receiving element 41 extracts the data channel that mails to our station according to this information, and with its recovery.Transmitting element 46 forms transmitted signal based on uplink scheduling information and up map information.
Figure 11 represents the configuration mode example of up link.In illustrated example, having prepared data volume is the Resource Block of two kinds of sizes.Larger Resource Block has the bandwidth of 1.25MHz and the duration of 0.5ms.Less Resource Block has the bandwidth of 375kHz and the duration of 0.5ms.The numerical value of the number of resource blocks that varies in size and relevant size only is a simple example, also can use suitable any number.Resource Block is arranged five in the frequency axis direction, end about less Resource Block is configured in, and the configuration mode in each subframe is identical.But the configuration mode of the Resource Block that varies in size can arrange variedly, and is known just passable the transmitting and receiving terminal both sides.In illustrated example, carry out the scheduling of up link, in during the part in larger Resource Block (the 2nd, the 3rd and the 4th Resource Block), in the transmit ascending data channel with the control channel (the 1st control channel) on road and transmit as required the 2nd control channel, with less Resource Block (the 1st or the 5th Resource Block), the control channel (the 2nd control channel) that transmission has or not uplink data channels all to be transmitted.Control channel in the larger Resource Block and the time scale of data channel also can depend on the suitably change and to need not to be all user's set all identical of the required control information amount of each user's set.And the 2nd control channel of certain user's set transmits with two less Resource Block.In illustrated example, use respectively the 2nd control channel of the 5th and the 1st Resource Block transmission user device A in the 2nd and the 3rd subframe.Similarly, use respectively the 2nd control channel of the 5th and the 1st Resource Block transmission user device B in the 3rd and the 4th subframe.So, because the saltus step (hop) on one side on frequency axis and time shaft direction of the 2nd control channel so can obtain the frequency diversity effect, can increase by the 2nd control channel by the base station reliability of demodulation suitably Yi Bian be transmitted.In illustrated example, as typical use example, transmit the 1st control channel with larger Resource Block, transmit the 2nd control channel with less Resource Block, but not necessarily carry out in the present invention separately using of such Resource Block, Resource Block also can be used for any control channel.
Relevant less Resource Block in Figure 11 is as ' be described the control A ', so that this Resource Block all monopolized by user's set A, but such using method in the present invention not necessarily.Also can be by a plurality of user's set common source pieces.For example, the 5th Resource Block of the 2nd subframe also can be shared by user's set A and C.Typically, so a plurality of user's sets also can share a Resource Block with frequency multiplexing mode.
Figure 12 represents other configuration mode examples of up link.Same with the situation of Figure 11, having prepared data volume is the Resource Block of two kinds of sizes.In the present embodiment, for less Resource Block (the 1st and the 5th Resource Block), TRB was set with (sub-period) during two sons by further two minutes during the subframe.In illustrated example, the 2nd control channel of user's set A (first half of subframe and latter half) during the 1st and the 2nd son of the 3rd subframe transmits with the 5th and the 1st Resource Block respectively.The 2nd control channel of user's set B transmits with the 1st and the 5th Resource Block respectively during the 1st and the 2nd son of the 3rd subframe.Like this, on one side the saltus step on one side on frequency axis and time shaft direction of the 2nd control channel is transmitted, so can obtain the frequency diversity effect, can increase by the 2nd control channel by the base station reliability of demodulation suitably.And the transmission of the control channel of user's set A is finished in during 1 subframe, and the transmission of the control channel of user's set B is finished in also during 1 subframe.Therefore, the present embodiment is better from the viewpoint of the transmission delay of shortening ascending control channel.
About Figure 12, Resource Block also can be shared by a plurality of user's sets.For example, the 5th Resource Block during the 1st son of the 3rd subframe also can be shared by user's set A and C.Typically, so a plurality of user's sets also can share a Resource Block with frequency multiplexing mode.
Think that in theory the number during the son that comprises in the subframe also can be than more than 2.The frame that uses among Figure 12 typically has structure shown in Figure 13.Comprise respectively pilot channel among the both sides during the 1st and the 2nd son.Therefore also can use the pilot channel that during this son, comprises suitably to carry out channel compensation etc. with the data of transmitting during arbitrary son (control channel).But if this frame is split into during three sons, then generation does not comprise during the son of pilot channel, is difficult to for suitably carrying out channel compensation etc. at the channel that sends during this period.Therefore, expect that it is the insertion number of pilot channel at the most that number during the son of every subframe is suppressed to.
As mentioned above, in ascending control channel, have in the uplink data channels with the control information on road and the control information that has or not uplink data channels all to be transmitted.In the latter, data volume less and the ferocious information of request instantaneity and high reliability and so more weak information of request are arranged.The former typical case is the transmission confirmation (ACK/NACK) of downstream data channel.The CQI that the frequency that comprises to stipulate in the latter is reported to the base station etc.Transmitting confirmation is the important information that has key effect in retransmitting control.According to being the repeating transmission that ACK or NACK carry out or do not divide into groups, so transmit the content of confirmation data throughput and generation time of delay are greatly affected.Therefore, expect that especially this content is by the transmission of high reliability ground.On the other hand, transmit confirmation and get final product with the less data volume that 1 bit just enough represents in principle, but this situation is difficult to expect to obtain higher error correcting capability by error correction coding.Therefore, similarly transmit even transmit other larger control informations of confirmation and data volume, can not expect certain high reliability that obtains with other control information same degree.
From such viewpoint, in the 4th embodiment of the present invention, as shown in figure 14, in uplink transmission frame, comprise the control channel and other the channel that transmit confirmation (ACK/NACK) and carry out code division multiplexing, transmit confirmation control channel in addition and carry out multiplexing with frequency division multiplexing and/or time division multiplexing mode.The transmission confirmation (ACK/NACK) of less amount of information is sent out by larger spread spectrum rate spread spectrum, so spreading gain is larger.This situation is transferred to the base station from transmitting confirmation reliability highland viewpoint has been situation.In addition, aspect favourable, even to other channels (for example, data channel) of code division multiplexing, only produce less noise with the signal behind so larger spread spectrum rate spread spectrum, so the harmful effect that code division multiplexing causes is few.
The Resource Block that transmits the code division multiplexing of confirmation does not need to be fixed, and can carry out code division multiplexing with various Resource Block.The Resource Block that carries out code division multiplexing also can change at any time according to any saltus step pattern.
Such method is not limited to ACK/NACK, little (for example in transmitted data amount, can suitably set with not enough number bit, less than 10 bits), require in the situation of the information of instantaneity and high reliability and information in addition, by the former and other channels are carried out code division multiplexing, the latter is carried out frequency division multiplexing and/or time division multiplexing is transmitted, can expand commodiously.
Relevant example shown in Figure 3, from the viewpoint of the quality deterioration that suppresses ascending control channel as far as possible, in the embodiment shown in fig. 4 the ascending control channel that comprises the 2nd control information of certain user's set whether with the road in uplink data channels all by with identical saltus step mode transfer.But the problem of relevant example shown in Figure 3 also can be under certain conditions processed the data channel transmission distributes resource blocks by forbidding.
For example, in Figure 12, in the situation that certain user's set does not have uplink data channels (perhaps not being assigned with the situation of resource), suppose ascending control channel (the 2nd control information of this user's set, particularly ACK/NACK or CQI) transmit with the less Resource Block of data volume (the 1st and the 5th Resource Block), distributed at the uplink data channels to this user's set in the situation of more than one Resource Block of the 2nd to the 4th Resource Block, with this Resource Block transmitting uplink control channel.
For the method for the present embodiment is described, for example, replace the ascending control channel (the 2nd control channel) that transmits certain user's set among Figure 12 with the 5th and the 1st Resource Block of the 3rd subframe, and the 2nd Resource Block (with wider frequency band and between short-term) of investigating with the 3rd subframe transmits this control channel.In the situation with the 5th and the 1st Resource Block transmitting uplink control channel of the 3rd subframe, frequency band is only narrower and can send with higher power instantaneously, and carries out saltus step with the 1st and the 5th Resource Block, so can expect the frequency diversity effect.Therefore, the quality of reception that certain degree is above can be expected in the base station.But, in the situation that with between the 2nd Resource Block broadband short-term transmitting control channel, only the frequency band average power of wide band instantaneity diminishes, the frequency diversity effect weakens, and in the imperfect situation of channel status, necessarily worries the quality deterioration of control channel.Especially, for the user's set of high-speed mobile, be positioned at the user's set of cell edge, worry the quality deterioration of the control channel that the transmission (having distributed the 2nd～the 5th Resource Block) of license uplink data channels causes.As mentioned above, control channel can not be retransmitted, so from just being required for the first time high-quality.Especially, be the important parameter of direct relation data throughout for the transmission confirmation (ACK/NACK) of downstream data channel, need correctly and promptly be transferred to the base station.
From such viewpoint, in the 5th embodiment of the present invention, new judgment standard is appended in the scheduling of the up link in the base station.Ground same, uplink link status is estimated based on the quality of the quality of reception (CQI) of the pilot channel that sends from user's set in the base station.In addition, in the present embodiment, calculate the mobility of user's set and apart from the distance of base station.Can derive mobility by measuring Doppler frequency.Doppler frequency is larger, represents that this user's set is mobile at high speed.User's set can be estimated with the path loss of the impact that greatly is subject to the distance change apart from the distance of base station.Path loss is larger, means that this user's set is far away apart from the base station.For example, whether the scheduler of base station well screens the candidate's who becomes the resource distribution user's set from the channel status (CQI) of up link.In the user's set that filters out, the user's set that mobility and/or the smaller user's set of distance are larger than mobility and/or distance is preferential.For example, even two user's sets have been reported the channel status good (CQI) of same degree, preferentially divide the resource that is used in data channel to the user's set that moves with low speed more.In addition, even two user's sets have been reported the channel status good (CQI) of same degree, preferentially divide the resource that is used in data channel to being positioned at the nearer user's set in base station.In other words, forbid dividing the resource that is used in data channel to channel status user's set so not good, in the high-speed mobile or the user's set of cell edge.Thus, can avoid permitting the quality deterioration of the control channel that the transmission (having distributed the 2nd～the 5th Resource Block) of uplink data channels causes.
Above, with reference to specific embodiment the present invention has been described, but each embodiment only is simple illustration, those skilled in the art understand various variation, fixed case, alternative, permutations etc. certainly.Use concrete numerical example to be illustrated for the understanding that promotes invention, but be not limited to this, these numerical value only are simple examples, also can use suitable any value.The differentiation of each embodiment is not internal in the present invention, as required, can use plural embodiment yet.For convenience of explanation, the device of embodiments of the invention uses functional-block diagram to be illustrated, but such device also can be realized with hardware, software or their combination.The invention is not restricted to above-described embodiment, various variation, fixed case, alternative, permutations etc. comprise and break away from the present invention and not spirit of the present invention.
This international application requirement is based on the priority of the Japanese patent application of Japanese patent application 2006-169427 number of on June 19th, 2006 application and application on August 22nd, 2006 2006-225918 number, their full content is incorporated in this world applies for.
Claims (18)
1. one kind is being adopted the base station of using in the mobile communication system of single carrier mode to up link, it is characterized in that having:
According to the up channel state of relevant each user's set, the more than one resource block assignments of up link is given the scheduler of each user's set; And
The schedule information of the planning content that the expression resource is distributed is notified the parts to user's set,
The ascending control channel of certain user's set no matter whether with the road in user data channel, all shine upon according to the described schedule information that is used for importing at the transmission frame that comprises a plurality of Resource Block the saltus step pattern of regulation.
2. base station as claimed in claim 1 is characterized in that,
In described transmission frame, the ascending control channel that comprises in the identical Resource Block and upstream user data are by time division multiplexing.
3. base station as claimed in claim 1 is characterized in that,
According in certain subframe with the 1st Resource Block, in next subframe, be used in the mode that the 2nd adjacent with the 1st Resource Block on frequency Resource Block transmits the ascending control channel of certain user's set and determine the saltus step pattern.
4. base station as claimed in claim 1 is characterized in that,
The more than one Resource Block that data volume is different is assigned to each user's set.
5. base station as claimed in claim 4 is characterized in that,
Prepare two kinds of Resource Block of big data quantity and small data quantity in advance, described transmission frame is made of a plurality of time subframes, the ascending control channel of same user's set has been assigned with a plurality of Resource Block, and described a plurality of Resource Block are the Resource Block that belong at least two different time subframes and have the small data quantity of at least two different frequency bands.
6. base station as claimed in claim 4 is characterized in that,
Prepare two kinds of Resource Block of big data quantity and small data quantity in advance, described transmission frame is made of a plurality of time subframes, be subdivided into during the plural son during each time subframe of a plurality of Resource Block of described small data quantity, be assigned to the ascending control channel of different user's sets during each described plural son.
7. base station as claimed in claim 1 is characterized in that,
According to make comprise send to confirmation channel by code division multiplexing mode and other channel multiplexing, send to control channel beyond the confirmation and carry out multiplexing mode by time-division multiplex mode and/or frequency division multiplexing mode and determine described schedule information.
8. a method of using in the base station of the mobile communication system that up link is adopted the single carrier mode is characterized in that, comprising:
According to the up channel state of relevant each user's set, the more than one resource block assignments of up link is given the scheduling step of each user's set; And
The schedule information of the planning content that the expression resource is distributed is notified the step to user's set,
The ascending control channel of certain user's set no matter whether with the road in user data channel, all shine upon according to the described schedule information that is used for importing at the transmission frame that comprises a plurality of Resource Block the saltus step pattern of regulation.
9. a user's set that uses in the mobile communication system to up link employing single carrier mode is characterized in that, comprising:
Receive the parts of down control channel;
Extraction is according to the parts of the schedule information of the distribution content of the up channel state more than one Resource Block that distribute, the expression up link of this user's set from described down control channel; And
According to described schedule information, send at least the parts of ascending control channel,
Described ascending control channel no matter whether with the road in user data channel, all shine upon according to being used for the described schedule information that in comprising the transmission frame of a plurality of Resource Block, imports the saltus step pattern of regulation.
10. user's set as claimed in claim 9 is characterized in that,
In described transmission frame, the ascending control channel that comprises in the identical Resource Block and upstream user data are by time division multiplexing.
11. user's set as claimed in claim 9 is characterized in that,
According in certain subframe with the 1st Resource Block, in next subframe, be used in the mode that the 2nd adjacent with the 1st Resource Block on frequency Resource Block transmits described ascending control channel and determine the saltus step pattern.
12. user's set as claimed in claim 9 is characterized in that,
The more than one Resource Block that data volume is different is assigned to each user's set.
13. user's set as claimed in claim 12 is characterized in that,
Prepare two kinds of Resource Block of big data quantity and small data quantity in advance, described transmission frame is made of a plurality of time subframes, the ascending control channel of same user's set has been assigned with a plurality of Resource Block, and described a plurality of Resource Block are the Resource Block that belong at least two time subframes and have the small data quantity of at least two frequency bands.
14. user's set as claimed in claim 12 is characterized in that,
Prepare two kinds of Resource Block of big data quantity and small data quantity in advance, be subdivided into during the plural son during each time subframe of a plurality of Resource Block of described small data quantity, resource is assigned with, so that the ascending control channel of this user's set during certain height by the frequency transmission with certain Resource Block, and during other son by the frequency transmission of Resource Block with other.
15. user's set as claimed in claim 12 is characterized in that,
Send in such a way described ascending control channel: comprise send to confirmation channel by code division multiplexing mode and other channel multiplexing, and the control channel of sending to beyond the confirmation is undertaken multiplexing by time-division multiplex mode and/or frequency division multiplexing mode.
16. a method of using in the user's set of the mobile communication system that up link is adopted the single carrier mode is characterized in that, comprising:
Receive the step of down control channel;
Extraction is according to the step of the schedule information of the distribution content of the more than one Resource Block up channel state assignment, the expression up link of this user's set from described down control channel; And
According to described schedule information, send at least the step of ascending control channel,
Described ascending control channel no matter whether with the road in user data channel, all shine upon according to the described schedule information that is used for importing at the transmission frame that comprises a plurality of Resource Block the saltus step pattern of regulation.
17. a base station of using in the mobile communication system to up link employing single carrier mode is characterized in that, comprising:
According to the up channel state of relevant each user's set, will be for the data volume of up link different more than one resource block assignments is given the scheduler of each user's set; And
The schedule information of the planning content that the expression resource is distributed is notified the parts to user's set,
Schedule information is generated, so that having distributed at the uplink data channels to this user's set in the situation of Resource Block, the ascending control channel of certain user's set transmitted with this Resource Block, and do not have at the uplink data channels to this user's set in the situation of distributes resource blocks, by the Resource Block transmission with the ascending control channel special use
Prepare two kinds of Resource Block of big data quantity and small data quantity in advance, the Resource Block of described special use belong at least two different during and a plurality of Resource Block at least two different frequency bands, described small data quantity,
At the mobility of the user's set situation larger than setting or user's set in the distance of the base station situation larger than setting, and in the situation of up channel state than the rank difference of regulation for this user's set, be under an embargo to the uplink data channels distributes resource blocks of this user's set.
18. a method of using in the base station of the mobile communication system that up link is adopted the single carrier mode is characterized in that, comprising:
According to the up channel state of relevant each user's set, the more than one resource block assignments of up link is given the scheduling step of each user's set; And
The schedule information of the planning content that the expression resource is distributed is notified the step to user's set,
Schedule information is generated, so that having distributed at the uplink data channels to this user's set in the situation of Resource Block, the ascending control channel of certain user's set transmitted with this Resource Block, and do not have at the uplink data channels to this user's set in the situation of distributes resource blocks, by the Resource Block transmission with the ascending control channel special use
Prepare two kinds of Resource Block of big data quantity and small data quantity in advance, the Resource Block of described special use belong at least two different during and a plurality of Resource Block at least two different frequency bands, described small data quantity,
At the mobility of the user's set situation larger than setting or user's set in the distance of the base station situation larger than setting, and in the situation of up channel state than the rank difference of regulation for this user's set, be under an embargo to the uplink data channels distributes resource blocks of this user's set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210566648.6A CN103220805B (en) | 2006-06-19 | 2007-06-13 | Base station and method of reseptance |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP169427/2006 | 2006-06-19 | ||
| JP2006169427 | 2006-06-19 | ||
| JP2006225918A JP4430052B2 (en) | 2006-06-19 | 2006-08-22 | Mobile communication system, user apparatus and transmission method |
| JP225918/2006 | 2006-08-22 | ||
| PCT/JP2007/061931 WO2007148583A1 (en) | 2006-06-19 | 2007-06-13 | Base station, user device and method used in mobile communication system |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010611817.4A Division CN102088345B (en) | 2006-06-19 | 2007-06-13 | Mobile communication system, user device and transmission method used in mobile communication system |
| CN201210566648.6A Division CN103220805B (en) | 2006-06-19 | 2007-06-13 | Base station and method of reseptance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101502158A CN101502158A (en) | 2009-08-05 |
| CN101502158B true CN101502158B (en) | 2013-02-13 |
Family
ID=40947548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200780029328.4A Expired - Fee Related CN101502158B (en) | 2006-06-19 | 2007-06-13 | Base station, user device and method used in mobile communication system |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4850939B2 (en) |
| CN (1) | CN101502158B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8379583B2 (en) * | 2009-01-30 | 2013-02-19 | Qualcomm Incorporated | Method and apparatus for multiplexing legacy long term evolution user equipment with advanced long term evolution user equipment |
| EP3905771A1 (en) | 2009-04-21 | 2021-11-03 | Optis Wireless Technology, LLC | Terminal apparatus and retransmission control method |
| HUE040655T2 (en) * | 2009-08-07 | 2019-03-28 | Sun Patent Trust | Terminal device and retransmission control method |
| WO2011084020A2 (en) * | 2010-01-08 | 2011-07-14 | 엘지전자 주식회사 | Method and apparatus for transmitting uplink control information in wireless communication system for supporting multi-carriers |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1627845A (en) * | 2003-12-11 | 2005-06-15 | 北京三星通信技术研究有限公司 | Dispatching method controlled from base station for enhancing up going shared channel in mobile communication system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4567628B2 (en) * | 2005-06-14 | 2010-10-20 | 株式会社エヌ・ティ・ティ・ドコモ | Mobile station, transmission method and communication system |
-
2007
- 2007-06-13 CN CN200780029328.4A patent/CN101502158B/en not_active Expired - Fee Related
-
2009
- 2009-08-20 JP JP2009191390A patent/JP4850939B2/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1627845A (en) * | 2003-12-11 | 2005-06-15 | 北京三星通信技术研究有限公司 | Dispatching method controlled from base station for enhancing up going shared channel in mobile communication system |
Non-Patent Citations (1)
| Title |
|---|
| NTT DoCoMo,NEC,Sharp,Toshiba Corporation.L1/L2 Control Channel Structure for E-UTRA Uplink.《3GPP TSG-RAN WG1 Meeting＃44 R1-060320》.2006,第1-7页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2009273171A (en) | 2009-11-19 |
| CN101502158A (en) | 2009-08-05 |
| JP4850939B2 (en) | 2012-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102088345B (en) | Mobile communication system, user device and transmission method used in mobile communication system | |
| CN102348285B (en) | Mobile station, base station and communications method | |
| US8457055B2 (en) | Radio base station used in mobile communication system | |
| CN102932126B (en) | Base station, communication terminal, communication system, sending method and reception method | |
| AU2007246533B2 (en) | Transmission apparatus and reception apparatus | |
| CN102883474B (en) | Base station and transmission method | |
| CN102523078B (en) | Base station, sending method and communication method | |
| CN102368872B (en) | Transmission device and transmission method | |
| CN101682880B (en) | User device, base station device, and method in mobile communication system | |
| CN101617559A (en) | Base station, communication terminal, sending method and method of reseptance | |
| CN103428880A (en) | User apparatus | |
| CN101502158B (en) | Base station, user device and method used in mobile communication system | |
| CN101405950A (en) | Base station, communication terminal, transmission method and reception method | |
| Yan et al. | Mcs analysis for 5g-nr v2x sidelink broadcast communication |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20160613 |