CN101778394B - Method and device for mapping resources - Google Patents
Method and device for mapping resources Download PDFInfo
- Publication number
- CN101778394B CN101778394B CN 200910076642 CN200910076642A CN101778394B CN 101778394 B CN101778394 B CN 101778394B CN 200910076642 CN200910076642 CN 200910076642 CN 200910076642 A CN200910076642 A CN 200910076642A CN 101778394 B CN101778394 B CN 101778394B
- Authority
- CN
- China
- Prior art keywords
- virtual resource
- resource blocks
- carrier wave
- block
- interleaver
- 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.)
- Active
Links
- 238000013507 mapping Methods 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000012545 processing Methods 0.000 claims description 14
- 230000005540 biological transmission Effects 0.000 claims description 13
- 230000008707 rearrangement Effects 0.000 claims description 7
- 238000012546 transfer Methods 0.000 claims description 6
- 230000011664 signaling Effects 0.000 claims description 4
- 239000000969 carrier Substances 0.000 abstract description 8
- 230000007423 decrease Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 7
- 125000004122 cyclic group Chemical group 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000007774 longterm Effects 0.000 description 4
- 238000002679 ablation Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 239000006249 magnetic particle Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
Images
Abstract
The invention relates to a method and a device for mapping resources. The method comprises the following steps of: separately interlacing a virtual resource block on each carrier in a plurality of carriers, interlacing between the carriers by using a first and a second virtual resource blocks of each carrier in the carriers acquired by interlacing as an integrate body, and mapping the rearranged virtual resource blocks onto a physical resource block after the interlacing is finished. The method and the device of the invention can map resources in an LTE-A system under a big band width condition, increases the frequency diversity, decreases the influence on the LTE system by partially using a downlink distribution type resource mapping mode of the current LTE, and ensures the system compatibility.
Description
Technical field
The present invention relates to the mobile communication technology field, relate in particular to a kind of method and apparatus of realizing resource mapping.
Background technology
In existing LTE (Long Term Evolution, Long Term Evolution) system, often continue to twist transmission by single carrier when sending downlink data at present; Thereby when the allocation of downlink resource, can adopt not frequency-hopping mode and frequency-hopping mode, be LVRB (Localized Virtual Resource Block, the localization virtual resource blocks) mode and DVRB (Distributed Virtual Resource Block, distributed virtual resource block) mode;
Wherein, LVRB divides timing, the distribution of directly carrying out Physical Resource Block according to virtual resource blocks gets final product, be VRB (the Virtual Resource Block of its distribution, virtual resource blocks) numbering and PRB (Physical Resource Block, Physical Resource Block) numbering is consistent, and former and later two time slots too; And DVRB divides timing, two time slots have a displacement on the frequency, the VRB numbering of its distribution is not identical with the PRB numbering, and the PRB of two time slots numbering is also different, thereby at the VRB of Resources allocation to the again process of mapping that interweaves is arranged between the actual PRB: the numbering of VRB enters interleaver, reading rear its order from interleaver is upset, obtain thus the physical resource position of first time slot, carry out the physical resource position that a cyclic shift can obtain second time slot according to the position of first time slot, can realize that with this data are distributed in the frequency hopping of a plurality of frequency bands; The detailed process that interweaves is as follows:
At first determine the gap value according to downlink bandwidth, the corresponding relation between concrete downlink bandwidth and the gap value is existing the description in wireless communication standard, do not repeat them here; Described gap value be VRB be mapped to through interweaving PRB upper after, the spacing between the identical VRB number;
After definite gap value, for N
Gap=N
Gap, 1, according to formula
Obtain the maximum bandwidth of DVRB, namely RB (Resource Block, Resource Block) counts, for gap value N
Gap=N
Gap, 2, according to formula
Obtain the maximum bandwidth of DVRB, again basis
Obtain the size of interleaver, wherein interleaver is to fix 4 row, and line number is
And the value of P can be determined according to the mapping table in the bandwidth usage existing communication standard, repeats no more herein;
In the maximum bandwidth of having determined DVRB
After, can determine has in this bandwidth
Individual interleaver unit; And interleaver unit according to its size half namely
Can be divided into two parts, (this deviant is that the gap value deducts usually to have a deviant between these two parts
), can obtain thus the method for salary distribution of even number time slot, and the odd number time slot can get final product by the method for salary distribution of even number time slot being carried out half interleave unit size of cyclic shift; Concrete, VRB is write this interleaver according to row, obtain the position distribution of first time slot after reading by row, and the position distribution of second time slot is by cyclic shift is carried out in the position of first time slot
Obtain, namely by two part switches about first time slot are obtained second time slot; This moment, first time slot and second time slot formed a subframe, and between left and right sides two parts of subframe an interval being arranged is Offset, and its value is half poor of the gap value determined and interleaver size; Finish interweave after, left-hand component, Offset compartment and the right-hand component that obtains is mapped to actual Physical Resource Block, namely all on the downlink bandwidths, can finish resource mapping.
But the maximum system bandwidth of present LTE system support is 20Mhz, thereby the maximum bandwidth that current interleaver is supported is 110RB, and at LTE-A (Long Term Evolution-Advance, long-term evolution upgrading) in the system, owing to used carrier aggregation technology (as shown in Figure 1), a plurality of LTE carrier resources are coupled together use, thereby support the bandwidth wider than LTE system, such as 100MHz; But support that at present maximum bandwidth is that the interleaver of 110RB can not satisfy the requirement of large bandwidth (a plurality of member carriers make up), namely can't under large bandwidth, realize the distributed resource mapping at the existing mapping mode that interweaves.
Summary of the invention
In view of this, the present invention solves is that frame structure configuration relation when adopting the single carrier transfer of data can't be implemented in the problem of carrying out transfer of data in the multicarrier system.
For addressing the above problem, technical scheme provided by the invention is as follows:
A kind of method that realizes resource mapping comprises:
Virtual resource blocks on each carrier wave in a plurality of carrier waves is interweaved separately;
The deviant that obtains after the first and second virtual resource blocks part of each carrier wave in a plurality of carrier waves that obtain of will interweaving and the virtual resource on each carrier wave interweave is carried out interweaving of intercarrier respectively as a whole;
Interweave and the virtual resource blocks of resetting is mapped on the Physical Resource Block after finishing.
A kind of data transmission method is applied in the LTE-A system, and the method comprises:
The base station adopts the method for realization resource mapping as claimed in claim 1 to determine the actual physical resources of the transmission of data, and notice UE is number and the downlink bandwidth of the resource of its distribution and the interval between the identical virtual resource blocks, multicarrier;
Described UE distributes the interval between indication, the identical virtual resource blocks, number and the downlink bandwidth of multicarrier according to the resource that receives, and adopts the method for the realization resource mapping identical with the base station to determine the actual physical resources piece of the transmission of data;
Base station and UE utilize the Physical Resource Block the transmission of data of the reality of determining.
A kind of device of realizing resource mapping comprises: the first interleave unit, the second interleave unit and map unit; Wherein, described the first interleave unit is used for the virtual resource blocks on each carrier wave of a plurality of carrier waves is interweaved separately; The deviant that obtains after the first and second virtual resource blocks part of a plurality of each carrier wave of carrier wave that described the second interleave unit obtains for described the first interleave unit is interweaved and the virtual resource on each carrier wave interweave is carried out interweaving of intercarrier; The virtual resource blocks of rearrangement was mapped to Physical Resource Block after described map unit was finished for described the second interleave unit is interweaved.
A kind of LTE-A system comprises: base station and user terminal, and described base station comprises: the first interleaving block, the second interleaving block, mapping block, indicating module and the first transport module; Wherein, described the first interleaving block is used for the virtual resource blocks on each carrier wave of a plurality of carrier waves is interweaved separately; The first and second virtual resource blocks of a plurality of each carrier wave of carrier wave that described the second interleaving block obtains for described the first interleaving block is interweaved partly carry out interweaving of intercarrier; The virtual resource blocks of rearrangement was mapped to Physical Resource Block after described mapping block was finished for described the second interleaving block is interweaved; Described indicating module be used for resource that notice UE is its distribution and virtual resource blocks to interval, number and the downlink bandwidth of multicarrier; Actual physical resources piece and user terminal that described the first transport module is used for utilizing described mapping block to determine carry out data transfer;
Described user terminal comprises: receiver module, the 3rd interleaving block, the 4th interleaving block, mapping block and the second transport module; Wherein, the described receiver module resource that be used for to receive the base station notice distribute indication, virtual resource blocks to interval, number and the downlink bandwidth of multicarrier; The parameter that described the 3rd interleaving block is used for utilizing described receiver module to receive interweaves separately to the virtual resource blocks on each carrier wave of a plurality of carrier waves; The first and second virtual resource blocks of a plurality of each carrier wave of carrier wave that described the 4th interleaving block obtains for described the 3rd interleaving block is interweaved partly carry out interweaving of intercarrier; The virtual resource blocks of rearrangement was mapped to Physical Resource Block after described mapping block was finished for described the 4th interleaving block is interweaved, to determine the actual physical resources piece of the transmission of data; Data transfer is carried out in actual physical resources piece and base station that described the second transport module is used for utilizing described mapping block to determine.
Can find out, adopt method and apparatus of the present invention, for a plurality of member carriers among the LTE-A, virtual resource blocks on each member carrier interweaves separately, then the different virtual Resource Block part of each carrier wave of obtaining of will interweaving is carried out interweaving of intercarrier respectively as a whole, interweave and the virtual resource blocks of resetting is mapped on the Physical Resource Block after finishing, thereby so that the LTE-A system can realize resource mapping under the environment of large bandwidth, increased simultaneously the frequency diversity degree, and since the part employing the descending distributed resource mapping mode of existing LTE, thereby reduced the impact on the LTE system, guaranteed the compatibility of system.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is carrier aggregation schematic diagram of the prior art;
Fig. 2 is the method flow schematic diagram of the embodiment of the invention 1;
Fig. 3 is the schematic diagram that single carrier interweaves in the embodiment of the invention 1;
Fig. 4 is the first schematic diagram that intercarrier interweaves in the embodiment of the invention 1;
Fig. 5 is the second schematic diagram that intercarrier interweaves in the embodiment of the invention 1;
Fig. 6 is the 3rd schematic diagram that intercarrier interweaves in the embodiment of the invention 1;
Fig. 7 is the 4th schematic diagram that intercarrier interweaves in the embodiment of the invention 1;
Fig. 8 is the 5th schematic diagram that intercarrier interweaves in the embodiment of the invention 1;
Fig. 9 is the apparatus structure schematic diagram of the embodiment of the invention 3.
Embodiment
Basic thought of the present invention is for a plurality of member carriers among the LTE-A, virtual resource blocks on each member carrier interweaves separately, then the different virtual Resource Block part of each carrier wave of obtaining of will interweaving is carried out interweaving of intercarrier respectively as a whole, interweave and the virtual resource blocks of resetting is mapped on the Physical Resource Block after finishing, thereby so that the LTE-A system can realize resource mapping under the environment of large bandwidth, increased simultaneously the frequency diversity degree, and since the part employing the descending distributed resource mapping mode of existing LTE, thereby reduced the impact on the LTE system, guaranteed the compatibility of system.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described; Obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The embodiment of the invention 1 provides the method that realizes resource mapping, and as shown in Figure 2, the method comprises:
In step 201, the virtual resource blocks on each carrier wave in a plurality of carrier waves is interweaved separately;
Concrete, at first determine the spacing value (being the gap value) of same virtual resource interblock according to downlink bandwidth, recycle described downlink bandwidth and described gap value is identified for the maximum bandwidth of distributed virtual resource block and the size of interleaver, then virtual resource blocks is write in lines behind the described interleaver again apportion and read, can finish and interweave; Certainly, interweave separately for each carrier wave among a plurality of carrier wave members and can adopt the mode of prior art, for example, take downlink bandwidth as example as 28RB, as shown in Figure 3:
1), at first, according to the downlink bandwidth of 28RB, determine the gap value by searching in the existing standard mapping table between the downlink bandwidth and gap value, as shown in table 1; Described gap value be virtual resource blocks between the interval, be the interval of 0 virtual resource interblock such as two labels 3. locating among Fig. 3, two labels are that 0 virtual resource blocks is called virtual resource blocks pair;
Table 1
As can be seen from Table 1, when downlink bandwidth was 28RB, its unique gap value that can select was 18; And when the gap value is 18, according to formula
The maximum bandwidth that can be identified for DVRB is 20; Again according to formula
The size that obtains interleaver also is 20, and interleaver commonly used is fixed as 4 row, determines parameter P and at first search corresponding table according to downlink bandwidth when determining the line number of interleaver, and as shown in table 2, this table also has description in the prior art, does not repeat them here;
Table 2
When downlink bandwidth is 28, tables look-up and determine that the P value is 3, according to formula
Can obtain the line number of interleaver, be 6 herein; It should be noted that interleaver mentioned in the present embodiment is a kind of structure of permutation and combination or the matrix that a kind of virtual resource blocks is arranged, and can with reference to the description in the existing standard, not repeat them here;
2), VRB is write this interleaver in lines, read (ignoring NULL) by row, obtain the number designation position that first time slot of 2. locating among Fig. 3 is namely gone up by delegation; Wherein, the number of the NULL in the interleaver is
Insert secondary series and the 4th row of interleaver, every row N
Null/ 2 NULL, i.e. N among the figure; Position distribution that it should be noted that second time slot 2. locating among Fig. 3 is by cyclic shift is carried out in the position of first time slot
Obtain, herein
Be 10, be about to that two part switches obtain second time slot about first time slot, as 2. locating two 0 position relationship among the figure;
3), this moment first time slot and second time slot form a subframe, between two virtual resource blocks parts an interval is arranged about subframe, the Offset that namely 3. locates among the figure, its value deducts half of interleaver size for definite gap value, namely
Certainly, this spacing value may be 0, may be not 0 also, is determined on a case-by-case basis; So, the right-hand component (i.e. the second virtual resource blocks part) of the left-hand component of the virtual resource blocks after can obtaining interweaving (i.e. the first virtual resource blocks part), Offset interval and virtual resource blocks is hinted obliquely at those parts on the Resource Block of 3. locating among Fig. 3 again; Especially it should be noted that in the present embodiment, owing to need the secondary interlace operation could determine final actual physical resources piece, so be considered as too virtual resource blocks at this time Resource Block that is mapped to after finishing that interweaves.
In addition, if 1 determine that gap value has two according to downlink bandwidth by tabling look-up, then when single carrier interweaves separately, can use two interleavers this moment, and not have offset to be offset between the different virtual resource blocks part in two interleavers after finishing of interweaving; For example, when downlink bandwidth is 52RB, define two gap values by tabling look-up, be respectively 27 and 9, two interleavers are then namely arranged this moment.Concrete interleaving process is similar to the above, does not repeat them here.
In step 202, the first and second virtual resource blocks of each carrier wave part is carried out interweaving of intercarrier respectively as a whole in a plurality of carrier waves that obtain that will interweave; In step 203, interweaving is mapped to the virtual resource blocks of resetting on the Physical Resource Block after finishing.
Concrete, the interleaving process of intercarrier can have various ways, and present embodiment proposes to adopt following dual mode, but is not limited to this; Wherein, have two to classify example as with interleaver, equally also be not limited to this, and line number decided on the number of the interleave unit of each member carrier:
1), as shown in Figure 4, the first and second virtual resource blocks part with each carrier wave in a plurality of carrier waves writes respectively total interleaver in lines; Apportion is read in a plurality of carrier waves the first and second virtual resource blocks of each carrier wave and is partly reset from total interleaver; It should be noted that when adopting this kind mode to carry out interweaving of intercarrier, do not consider not lead to the skew between carrier wave the first and second virtual resource blocks part; Wherein, each provisional capital is that a carrier wave is finished the virtual resource blocks after interweaving, and first row is the first half of this virtual resource blocks after finishing that interweaves for the first time, and secondary series is the latter half of this virtual resource blocks after finishing that interweaves for the first time.
2) deviant that, obtains after the virtual resource on each carrier wave in the first and second virtual resource blocks of each carrier wave in a plurality of carrier waves part and a plurality of carrier wave is interweaved respectively branch writes in total interleaver; Apportion is read each carrier wave in a plurality of carrier waves from total interleaver the first and second virtual resource blocks parts and deviant are reset; And based on the difference of the position of deviant, the mode that writes total interleaver has multiple; Take three member carriers as example, virtual resource blocks first half and latter half after first member carrier A interweaved are made as respectively A0 and A1, and deviant is offsetA; Same virtual resource blocks first half and latter half after second member carrier B interweaved is made as respectively B0 and B1, and deviant is offsetB; Virtual resource blocks first half and latter half after first member carrier C interweaved are made as respectively C0 and C1, and deviant is offset C; During implementation, if certain carrier wave its interleaver number when interweaving surpasses at 1 o'clock, the deviant after then interweaving is 0;
A, the deviant of a plurality of carrier waves is sequentially added the end of described total interleaver, if fill out discontented total interleaver, then fill NULL, when reading, ignore; As shown in Figure 5, virtual resource blocks first half A0 and latter half A1 after carrier wave A interweaved write the first row successively, virtual resource blocks first half B0 and latter half B1 after carrier wave B interweaved write the second row successively, and virtual resource blocks first half C0 and latter half C1 after carrier wave C is interweaved write the second row successively; Deviant offset A, offset B and offset C are write fourth line and fifth line successively; Read A0, B0, C0, offset A, offset C and A1, B1, C1 and offset B at apportion, finish interweaving of intercarrier;
B, the deviant of a plurality of carrier waves is added respectively the end of described total interleaver as independent rows, as shown in Figure 6, wherein ablation process is except adopting mode shown in Figure 6, and other and above-mentioned A mode are similar, repeat no more;
C, with the deviant of a plurality of carrier waves respectively as the staggered centre that adds described total interleaver of independent rows, as shown in Figure 7, wherein ablation process is except adopting mode shown in Figure 7, other and above-mentioned A mode are similar, repeat no more;
D, the synthetic line interlacing of the set of offset value of a plurality of carrier waves is added the centre of described total interleaver, as shown in Figure 8, wherein ablation process is except adopting as shown in Figure 8 mode, and other and above-mentioned A mode are similar, repeat no more;
After adopting aforesaid way to finish interweaving of intercarrier, the virtual resource blocks of resetting is mapped on the actual Physical Resource Block, has namely finished the resource mapping under large bandwidth environment.
Can find out, adopt the method for the embodiment of the invention, for a plurality of member carriers among the LTE-A, virtual resource blocks on each member carrier interweaves separately, then the different virtual Resource Block part of each carrier wave of obtaining of will interweaving is carried out interweaving of intercarrier respectively as a whole, interweave and the virtual resource blocks of resetting is mapped on the Physical Resource Block after finishing, thereby so that the LTE-A system can realize resource mapping under the environment of large bandwidth, increased simultaneously the frequency diversity degree, and since the part employing the descending distributed resource mapping mode of existing LTE, thereby reduced the impact on the LTE system, guaranteed the compatibility of system.
In addition, the embodiment of the invention 2 has also proposed a kind of data transmission method, and it is mainly used in the LTE-A system, wherein,
For base station side:
Actual physical resources when utilizing the method for above-described embodiment to determine the transmission of data, specifically content as described above repeats no more herein; Notify to described UE by the gap value that indication signaling will be distributed to the resource of UE and utilize downlink bandwidth to determine; Simultaneously, utilize broadcast or indication signaling that number and the bandwidth of member carrier are notified to described UE; It should be noted that and indicate the UE relevant parameter also can realize by other modes of the prior art, be not described in detail in this;
And for end side:
The resource that receives the base station notice is distributed gap value, member carrier number and the downlink bandwidth of indicating, determining; Know interleaver size and described deviant size according to the gap value that receives; For example when knowing the gap value, utilize
With
Determine can be used for the bandwidth of distributed mapping DVRB, again basis
Determine the size of interleaver, and the large I of deviant by
Determine; Then distribute indication, gap value, interleave unit size to determine the position of actual physical resources according to resource, definite mode is identical with base station side, all can adopt the mode of above-described embodiment 1, does not repeat them here.
Based on above-mentioned thought, the embodiment of the invention 3 has proposed again a kind of device of realizing resource mapping, and as shown in Figure 9, this device 900 comprises: the first interleave unit 901, the second interleave unit 902 and map unit 903; Wherein,
Described the first interleave unit 901 is used for the virtual resource blocks on each carrier wave of a plurality of carrier waves is interweaved separately;
The first and second virtual resource blocks of a plurality of each carrier wave of carrier wave that described the second interleave unit 902 obtains for described the first interleave unit 901 is interweaved partly carry out interweaving of intercarrier;
The virtual resource blocks of rearrangement was mapped to Physical Resource Block after described map unit 903 was finished for described the second interleave unit 902 is interweaved.
Wherein, described the first interleave unit comprises: the first processing module, the second processing module and the 3rd processing module; Described the first processing module be used for according to downlink bandwidth determine virtual resource blocks between spacing value; Described the second processing module is used for utilizing described downlink bandwidth and described spacing value to be identified for the maximum bandwidth of distributed virtual resource block and the size of interleaver; Described the 3rd processing module is used for described virtual resource blocks is write the interleaver that described the second processing module is determined in lines, and apportion is read again.
It should be noted that described the second interleave unit comprises: the first writing module and the first read through model perhaps comprise the second writing module and the second read through model; Wherein,
Described the first writing module is used for described the first and second virtual resource blocks part is write total interleaver in lines; Described the first read through model is used for reading described the first and second virtual resource blocks from described total interleaver apportion and partly resets.
Described the second writing module is used for described the first and second virtual resource blocks part and the deviant that obtains after interweaving writes respectively total interleaver in lines; Described the second read through model is reset for read described the first and second virtual resource blocks part and described deviant from total interleaver apportion.
Certainly; those skilled in the art understand; realize in above-described embodiment 3 that the device of resource mapping also can be regarded as the part of base station or user terminal in the specific implementation: this base station also comprises the unit that the device described in above-described embodiment comprises when comprising each parts that ordinary base station comprises; namely comprising the base station of each unit of said apparatus and terminal also should be included within the scope that the present invention protects; but be not limited to this, do not repeat them here.
It will be understood by those skilled in the art that and to represent information, message and signal with many different techniques and in the technology any one.For example, the message of mentioning in the above-mentioned explanation, information can be expressed as voltage, electric current, electromagnetic wave, magnetic field or magnetic particle, light field or above combination in any.
The professional can also further should be able to recognize, unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software clearly is described, composition and the step of each example described in general manner according to function in the above description.These functions are carried out with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.The professional and technical personnel can specifically should be used for realizing described function with distinct methods to each, but this realization should not thought and exceeds scope of the present invention.
The method of describing in conjunction with embodiment disclosed herein or the step of algorithm can directly use the software module of hardware, processor execution, and perhaps the combination of the two is implemented.Software module can place the storage medium of any other form known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or the technical field.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can in the situation that does not break away from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a method that realizes resource mapping is characterized in that, comprising:
Virtual resource blocks on each carrier wave in a plurality of carrier waves is interweaved separately;
The deviant that obtains after the first and second virtual resource blocks part of each carrier wave in a plurality of carrier waves that obtain of will interweaving and the virtual resource on each carrier wave interweave is carried out interweaving of intercarrier respectively as a whole;
Interweave and the virtual resource blocks of resetting is mapped on the Physical Resource Block after finishing.
2. method according to claim 1 is characterized in that, interweaving of the virtual resource blocks on described each carrier wave realizes by following steps:
Determine the spacing value of virtual resource interblock according to downlink bandwidth;
Utilize described downlink bandwidth and described spacing value to be identified for the maximum bandwidth of distributed virtual resource block and the size of interleaver;
After virtual resource blocks write described interleaver in lines, apportion was read again, finishes to interweave.
3. method according to claim 1 is characterized in that, interweaving of described intercarrier realizes by following steps:
The deviant that obtains after virtual resource on each carrier wave in the first and second virtual resource blocks of each carrier wave in a plurality of carrier waves part and a plurality of carrier wave interweaved respectively branch writes in total interleaver;
Apportion is read each carrier wave in a plurality of carrier waves from total interleaver the first and second virtual resource blocks parts and deviant are reset.
4. method according to claim 3 is characterized in that:
The end that the deviant of a plurality of carrier waves is sequentially added described total interleaver; Perhaps,
The end that the deviant of a plurality of carrier waves is added respectively described total interleaver as independent rows; Perhaps,
With the deviant of a plurality of carrier waves respectively as the staggered centre that adds described total interleaver of independent rows; Perhaps, the centre that the synthetic line interlacing of the set of offset value of a plurality of carrier waves is added described total interleaver.
5. method according to claim 4, it is characterized in that: described total interleaver has two row.
6. a data transmission method is applied to it is characterized in that in the LTE-A system, comprising:
The base station adopts the method for realization resource mapping as claimed in claim 1 to determine the actual physical resources of the transmission of data, and notice UE is number and the downlink bandwidth of the resource of its distribution and the interval between the identical virtual resource blocks, multicarrier;
Described UE distributes the interval between indication, the identical virtual resource blocks, number and the downlink bandwidth of multicarrier according to the resource that receives, and adopts the method for the realization resource mapping identical with the base station to determine the actual physical resources piece of the transmission of data;
Base station and UE utilize the Physical Resource Block the transmission of data of the reality of determining.
7. method according to claim 6 is characterized in that:
Resource and the described spacing value of described UE for its distribution are notified by indication signaling in described base station, notify simultaneously number and the downlink bandwidth of described UE multicarrier by indication signaling or broadcast.
8. a device of realizing resource mapping is characterized in that, comprising: the first interleave unit, the second interleave unit and map unit; Wherein,
Described the first interleave unit is used for the virtual resource blocks on each carrier wave of a plurality of carrier waves is interweaved separately;
The deviant that obtains after the first and second virtual resource blocks part of a plurality of each carrier wave of carrier wave that described the second interleave unit obtains for described the first interleave unit is interweaved and the virtual resource on each carrier wave interweave is carried out interweaving of intercarrier;
The virtual resource blocks of rearrangement was mapped to Physical Resource Block after described map unit was finished for described the second interleave unit is interweaved.
9. device according to claim 8 is characterized in that, described the first interleave unit comprises: the first processing module, the second processing module and the 3rd processing module; Wherein,
Described the first processing module is used for determining according to downlink bandwidth the spacing value of virtual resource interblock;
Described the second processing module is used for utilizing described downlink bandwidth and described spacing value to be identified for the maximum bandwidth of distributed virtual resource block and the size of interleaver;
Described the 3rd processing module is used for described virtual resource blocks is write the interleaver that described the second processing module is determined in lines, and apportion is read again.
10. device according to claim 8 is characterized in that, described the second interleave unit comprises: the second writing module and the second read through model; Wherein,
Described the second writing module is used for described the first and second virtual resource blocks part and the deviant that obtains after interweaving writes respectively total interleaver in lines;
Described the second read through model is reset for read described the first and second virtual resource blocks part and described deviant from total interleaver apportion.
11. a LTE-A system comprises: base station and user terminal, it is characterized in that,
Described base station comprises: the first interleaving block, the second interleaving block, the first mapping block, indicating module and the first transport module; Wherein,
Described the first interleaving block is used for the virtual resource blocks on each carrier wave of a plurality of carrier waves is interweaved separately;
The first and second virtual resource blocks of a plurality of each carrier wave of carrier wave that described the second interleaving block obtains for described the first interleaving block is interweaved partly carry out interweaving of intercarrier;
The virtual resource blocks of rearrangement was mapped to Physical Resource Block after described the first mapping block was finished for described the second interleaving block is interweaved;
It is the resource of its distribution and the interval of virtual resource interblock, number and the downlink bandwidth of multicarrier that described indicating module is used for notice UE;
Actual physical resources piece and user terminal that described the first transport module is used for utilizing described the first mapping block to determine carry out data transfer;
Described user terminal comprises: receiver module, the 3rd interleaving block, the 4th interleaving block, the second mapping block and the second transport module; Wherein,
Described receiver module is used for receiving the resource distribution indication of base station notice, the interval of virtual resource interblock, number and the downlink bandwidth of multicarrier;
The parameter that described the 3rd interleaving block is used for utilizing described receiver module to receive interweaves separately to the virtual resource blocks on each carrier wave of a plurality of carrier waves;
The first and second virtual resource blocks of a plurality of each carrier wave of carrier wave that described the 4th interleaving block obtains for described the 3rd interleaving block is interweaved partly carry out interweaving of intercarrier;
The virtual resource blocks of rearrangement was mapped to Physical Resource Block after described the second mapping block was finished for described the 4th interleaving block is interweaved, to determine the actual physical resources piece of the transmission of data;
Data transfer is carried out in actual physical resources piece and base station that described the second transport module is used for utilizing described the second mapping block to determine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910076642 CN101778394B (en) | 2009-01-12 | 2009-01-12 | Method and device for mapping resources |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910076642 CN101778394B (en) | 2009-01-12 | 2009-01-12 | Method and device for mapping resources |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101778394A CN101778394A (en) | 2010-07-14 |
| CN101778394B true CN101778394B (en) | 2013-04-24 |
Family
ID=42514672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910076642 Active CN101778394B (en) | 2009-01-12 | 2009-01-12 | Method and device for mapping resources |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101778394B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102412951B (en) * | 2011-11-17 | 2014-06-11 | 武汉邮电科学研究院 | Method and device for mapping distributed virtual resource blocks to physical resource blocks in LTE (Long Term Evolution) |
| EP2816769B1 (en) * | 2012-03-19 | 2018-02-21 | Huawei Technologies Co., Ltd. | Transmitting control channel |
| CN110380838B (en) * | 2013-03-28 | 2021-08-03 | 华为技术有限公司 | Bandwidth allocation method and device, user equipment and base station |
| GB2548922B (en) * | 2016-04-01 | 2018-09-12 | Tcl Communication Ltd | Resource block allocation for uplink communications |
| CN108886690B (en) * | 2016-04-01 | 2021-02-12 | 华为技术有限公司 | Method, equipment and system for indicating resource allocation |
| US11019626B2 (en) | 2016-05-25 | 2021-05-25 | Huawei Technologies Co., Ltd. | Allocating virtual resource blocks |
| CN108347776B (en) * | 2017-01-25 | 2023-11-10 | 华为技术有限公司 | Method and equipment for resource allocation in communication system |
| CN109803412B (en) | 2017-11-17 | 2021-01-29 | 维沃移动通信有限公司 | Resource mapping method, resource determining method, network side equipment and user terminal |
| CN110034888A (en) | 2018-01-12 | 2019-07-19 | 华为技术有限公司 | A kind of wireless communication device and wireless communications method |
| CN111130687B (en) * | 2018-11-01 | 2022-08-02 | 中兴通讯股份有限公司 | Wireless data communication method and device, storage medium and electronic device |
| CN113765525A (en) * | 2020-06-02 | 2021-12-07 | 华为技术有限公司 | Interleaving and subcarrier mapping method supporting unequal modulation and related device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1638287A (en) * | 2004-02-03 | 2005-07-13 | 上海奇普科技有限公司 | Convolution interleaving and de-interleaving method in digital transmission |
| CN101247382A (en) * | 2008-03-25 | 2008-08-20 | 中兴通讯股份有限公司 | Distributed transmission resource mapping method and apparatus based on OFDM system |
-
2009
- 2009-01-12 CN CN 200910076642 patent/CN101778394B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1638287A (en) * | 2004-02-03 | 2005-07-13 | 上海奇普科技有限公司 | Convolution interleaving and de-interleaving method in digital transmission |
| CN101247382A (en) * | 2008-03-25 | 2008-08-20 | 中兴通讯股份有限公司 | Distributed transmission resource mapping method and apparatus based on OFDM system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101778394A (en) | 2010-07-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101778394B (en) | Method and device for mapping resources | |
| US10631321B2 (en) | Method and apparatus for determining allocation of communication resources | |
| CN110679109B (en) | Communication method and device | |
| CN103326846B (en) | Method for scheduling distributed virtual resource blocks | |
| KR100904433B1 (en) | A method for scheduling of distributed virtual resource blocks | |
| US10327225B2 (en) | Broadcast message transmission method, base station and user equipment | |
| CN104125186A (en) | Method, system and device for selecting demodulation reference signal (DMRS) pattern information | |
| CN101836412A (en) | Method for configurating basic signal allocation unit and method for transmitting signals using the same | |
| CN108632011B (en) | Method and device for data transmission | |
| CN103314631A (en) | Method for sending sounding reference symbol, e-nodeb and user equipment | |
| CN101087481A (en) | Channel quality reporting in an orthogonal frequency division multiplexing system | |
| CN101102142A (en) | A distributed transmission resource mapping method based on OFDM system | |
| CN102148791A (en) | Communication device and receiving method | |
| CN103957090A (en) | Vectorization achieving method and device of LTE system resource mapping | |
| CN104348774B (en) | The method and apparatus for accessing channel | |
| CN102025677B (en) | Method for transmitting pilot signal in multi-carrier wireless transmission system | |
| CN101675636B (en) | Method and device for allocating resources in OFDM network | |
| TWI566562B (en) | Hew communication station and method for communicating longer duration ofdm symbols using minimum bandwidth units having tone allocations | |
| JP5863864B2 (en) | Scheduling method for distributed virtual resource block | |
| KR20120109564A (en) | Method and base station for coding resource index in wireless communication system | |
| RU2468512C2 (en) | Method for planning of distributed units of virtual resources | |
| JP6167212B2 (en) | Scheduling method for distributed virtual resource block | |
| CN106921479B (en) | Channel estimation method, sending end equipment and receiving end equipment | |
| RU2518934C2 (en) | Method of transmitting/receiving downlink data using resource blocks in wireless mobile communication system and device therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: INST OF TELECOMMUNICATION SCIENCE AND TECHNOLGOY Free format text: FORMER OWNER: DATANG MOBILE COMMUNICATION EQUIPMENT CO., LTD. Effective date: 20110504 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100083 NO. 29, XUEYUAN ROAD, HAIDIAN DISTRICT, BEIJING TO: 100083 NO. 40, XUEYUAN ROAD, HAIDIAN DISTRICT, BEIJING |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20110504 Address after: 100083 No. 40, Haidian District, Beijing, Xueyuan Road Applicant after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100083 Haidian District, Xueyuan Road, No. 29, Applicant before: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100083 No. 40, Haidian District, Beijing, Xueyuan Road Patentee after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100083 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210608 Address after: 100085 1st floor, building 1, yard 5, Shangdi East Road, Haidian District, Beijing Patentee after: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. Address before: 100083 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |