CN101170526A - Method, network side device and user terminal for mapping distributed sub-carrier to physical resource blocks - Google Patents
Method, network side device and user terminal for mapping distributed sub-carrier to physical resource blocks Download PDFInfo
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Abstract
The invention discloses the method that a distribution type sub-carrier maps on a physical resource block. The method comprises the following steps: the mapping regulation of the physical resource block mapped on by the distribution type sub-carrier in each data subframe of data frame is preset in the network side and the user terminal; the network side maps the distribution type sub-carrier on the corresponding physical resource block in each data frame according to the mapping regulations and transmits the data frame to the user terminal. After receiving the data frame, the user terminal confirms the physical resource block mapped on by the distribution type sub-carrier in each data subframe according to the mapping regulations. The invention also discloses the corresponding network side equipment and the user terminal. The physical resource block in the invention mapped by the distribution type sub-carrier can change with different subframe and hence has frequency hopping diversity.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of method and network equipment and user terminal of mapping distributed sub-carrier to physical resource blocks.
Background technology
The distributed sub-carrier allocation majority is used in transmitting control message and the high-speed mobile environment, comes allocation of subcarriers because at this moment be difficult to according to user's channel quality.The distributed sub-carrier allocation mode makes the subcarrier in each subchannel be distributed on the whole system bandwidth, thereby can obtain the best frequency diversity effect and the interference of equalization minizone.Centralized sub-carrier distribution manner can be selected best sub-channel for each user according to user's channel response, thereby obtains optimum multi-user diversity gain.
Long Term Evolution (Long Term Evolution, LTE) proposing centralized and distributed in the standard formulation process especially is to adopt frequency division multiplexing (Frequency Division Multiplex, FDM) mode, promptly Transmission Time Interval (Transmission Time Interval, TTI) in existing centralised allocation the subcarrier of distributed allocation is also arranged.Wherein, Resource Block (Resource Block, RB) the distributed method of salary distribution of level is much lower unlike the performance of the distributed method of salary distribution of subcarrier level, and the distributed method of salary distribution of RB level can reduce the scheduling complexity, so the distributed method of salary distribution method of RB level is adopted in suggestion.
The concrete distributed distribution method of RB level is as follows:
N
DAlso can be understood as the sub-piece number that a Physical Resource Block is divided into, wherein each sub-piece belongs to different distributed virtual resource block; The number N of Physical Resource Block
PRBExpression, then being spaced apart between these Physical Resource Block
Use N
D-PRBExpression virtual resource blocks group, wherein, 0≤N
D-PRB≤ C, then distributed virtual resource block number N
DVRBCalculate by following formula (1):
N
DVRB=N
D-PRB* N
DFormula (1)
The position K of distributed virtual resource block correspondence is determined by following formula (2):
Formula (2)
I=0 wherein ..., N
D-1 and j=0 ..., N
D-PRB-1.
Above-mentioned distributed virtual resource block is used to carry distributed sub-carrier, that is to say, distributed sub-carrier is mapped on the corresponding Physical Resource Block that index value is K.Shown in Figure 1A, Figure 1B.
Among Figure 1A, N
DVRB=2, N
D=2, then K equals 0 and 6, represents that promptly it is on 0 and 6 the corresponding Physical Resource Block that distributed sub-carrier is mapped to index value.Physical Resource Block " 0 " (the expression index value is the corresponding Physical Resource Block of " 0 ", and below statement is identical) and Physical Resource Block " 6 " are formed one group of virtual resource blocks; Among Figure 1A, have two distributed virtual resource block, wherein:
Distributed virtual resource block " 0 " takies a part of resource of Physical Resource Block " 0 " and Physical Resource Block " 6 ";
Distributed virtual resource block " 6 " takies the remainder resource of Physical Resource Block " 0 " and Physical Resource Block " 6 ".
Among Figure 1B, N
DVRB=4, N
D=2, then K equals 0,3,6,9, represents that promptly distributed sub-carrier is mapped to index value to be respectively on 0,3,6,9 the corresponding Physical Resource Block.Physical Resource Block " 0 " and Physical Resource Block " 6 " are formed one group of virtual resource blocks; Physical Resource Block " 3 " and Physical Resource Block " 9 " are formed another group virtual resource blocks; Among Figure 1B, have four distributed virtual resource block, wherein:
Distributed virtual resource block " 0 " takies a part of resource of Physical Resource Block " 0 " and Physical Resource Block " 6 ";
Distributed virtual resource block " 3 " takies a part of resource of Physical Resource Block " 3 " and Physical Resource Block " 9 ".
Distributed virtual resource block " 6 " takies the remainder resource of Physical Resource Block " 0 " and Physical Resource Block " 6 ";
Distributed virtual resource block " 9 " takies the remainder resource of Physical Resource Block " 3 " and Physical Resource Block " 9 ".
Above-mentioned distributed sub-carrier allocation method has realized the purpose of distributed virtual resource block and the multiplexing same data burst of Physical Resource Block, the Physical Resource Block that is used in distributed sub-carrier allocation simultaneously separates as much as possible, reach the effect of frequency diversity, also less aspect signaling consumption.But also there is following shortcoming:
By foregoing description as can be known: in case N
D-PRB, N
DParameter is determined, the Physical Resource Block that is used for distributed sub-carrier allocation is just fixing, be that the Physical Resource Block that distributed sub-carrier is mapped in each data burst is fixed, can not change, can not obtain the effect of frequency hopping diversity well along with the variation of data burst.
Summary of the invention
The invention provides a kind of method and network equipment and user terminal of mapping distributed sub-carrier to physical resource blocks, in order to solve exist in the prior art with mapping distributed sub-carrier to physical resource blocks the time can not obtain the problem of frequency hopping diversity.
The present invention includes:
The mapping ruler of mapping distributed sub-carrier to physical resource blocks in each data burst of preliminary setting data frame in network side and user terminal;
Described network side is mapped to distributed sub-carrier in the corresponding physical Resource Block in each data burst according to described mapping ruler, sends Frame to described user terminal;
After described user terminal receives described Frame, determine the Physical Resource Block that distributed sub-carrier shone upon in each data burst according to described mapping ruler.
The present invention provides a kind of network equipment in addition, comprises the first input/output interface module, also comprises:
The first mapping ruler memory module, the mapping ruler of mapping distributed sub-carrier to physical resource blocks in each data burst of store frames of data;
The distributed sub-carrier mapping block, according to the mapping ruler of storing in the described first mapping ruler memory module, in each data burst, distributed sub-carrier is mapped in the corresponding physical Resource Block, sends Frame to user terminal by the described first input/output interface module.
The present invention also provides a kind of user terminal, comprises the second input/output interface module, also comprises:
The second mapping ruler memory module, the mapping ruler of mapping distributed sub-carrier to physical resource blocks in each data burst of store frames of data;
Distributed sub-carrier is separated mapping block, receive the Frame that the base station sends by the described second input/output interface module, according to the mapping ruler of storing in the described second mapping ruler memory module, determine the Physical Resource Block that distributed sub-carrier shone upon in each data burst.
Beneficial effect of the present invention is as follows:
The mapping ruler of mapping distributed sub-carrier to physical resource blocks in each data burst of embodiment of the invention employing preliminary setting data frame in network side base station and user terminal; The network side base station is mapped to distributed sub-carrier in the corresponding physical Resource Block in each data burst according to described mapping ruler, sends Frame to user terminal; After user terminal receives Frame, determine the Physical Resource Block that distributed sub-carrier shone upon in each data burst according to identical mapping ruler.Like this, just can be so that the corresponding Physical Resource Block that distributed sub-carrier is mapped in each data burst differ from one another, thus obtain frequency hopping diversity.
The embodiment of the invention discloses a kind of mapping method that adopts frequency hop sequences, base station and user terminal mapping method are routinely added frequency hop sequences corresponding element value after calculating the Physical Resource Block index value of distributed sub-carrier mapping, determine the actual physical resources piece position of distributed sub-carrier mapping in each data burst.This method realizes simple, and can adopt different frequency hop sequences in each sub-district, effectively avoids presence of intercell interference.
The embodiment of the invention also discloses a kind of mapping method that adopts conversion table, in base station and user terminal,, comprise in the conversion table: Physical Resource Block index value before the conversion and conversion back corresponding virtual index value in advance at each data burst storage conversion table; Base station and user terminal mapping mode are routinely searched the corresponding conversion table after calculating the Physical Resource Block index value of distributed sub-carrier mapping, obtain the virtual index value, with the actual physical resources piece of described virtual index value corresponding physical Resource Block as the distributed sub-carrier mapping, thereby make the corresponding Physical Resource Block that distributed sub-carrier is mapped in each data burst differ from one another, obtain frequency hopping diversity.
Description of drawings
Figure 1A, Figure 1B are for adopting the position view of art methods with mapping distributed sub-carrier to physical resource blocks;
Fig. 2 is the position view of the embodiment of the invention one with mapping distributed sub-carrier to physical resource blocks;
Fig. 3 is the position view of the embodiment of the invention two with mapping distributed sub-carrier to physical resource blocks;
Block Error Rate comparison curves coordinate diagram when Fig. 4 carries out the distributed sub-carrier mapping for adopting embodiment of the invention method and art methods;
Throughput comparison curves coordinate diagram when Fig. 5 carries out the distributed sub-carrier mapping for adopting embodiment of the invention method and art methods;
The network equipment structural representation that Fig. 6 provides for the embodiment of the invention;
The user terminal structural representation that Fig. 7 provides for the embodiment of the invention.
Embodiment
The method of the mapping distributed sub-carrier to physical resource blocks that the embodiment of the invention provides comprises:
The mapping ruler of mapping distributed sub-carrier to physical resource blocks in each data burst of preliminary setting data frame in network side and user terminal;
Network side is mapped to distributed sub-carrier in the corresponding physical Resource Block in each data burst according to described mapping ruler, sends Frame to user terminal;
After user terminal receives described Frame, determine the Physical Resource Block that distributed sub-carrier shone upon in each data burst according to described mapping ruler.
Below in conjunction with accompanying drawing, described in detail.
Embodiment one:
Realize that with the network side base station distributed sub-carrier is mapped as example, store frequency hop sequences in advance in base station and user terminal, the element number that frequency hop sequences comprises equals the data burst number that comprises in the frame data;
The Physical Resource Block index value of distributed sub-carrier mapping is provided by the distributed sub-carrier mapping method that provides in the above-mentioned prior art for base station and user terminal, it is the K value, add frequency hop sequences corresponding element value, finally determine the actual physical resources piece position of distributed sub-carrier mapping in each data burst.
For example: establish frequency hop sequences x (n)=0,3,1,4,2,5}; This frequency hop sequences comprises six elements, and the element value of each element correspondence is respectively: 0,3,1,4,2,5; Other parameter of distributed sub-carrier mapping is respectively: N
D-PRB=1, N
D=2, N
PRB=12; Then calculate the Physical Resource Block corresponding index value K of distributed sub-carrier mapping by following formula (3);
In the formula (3)
For under round, mod represents delivery, i=0 wherein ..., N
D-1 and j=0 ..., N
D-PRB-1.
Can calculate by formula (3):
In first data burst, the value of x (n) is 0, and the corresponding Physical Resource Block of distributed sub-carrier mapping is Physical Resource Block " 0 " and Physical Resource Block " 6 ";
In second data subframe, the value of x (n) is 3, and the corresponding Physical Resource Block of distributed sub-carrier mapping is Physical Resource Block " 3 " and Physical Resource Block " 9 ";
In the 3rd the data subframe, the value of x (n) is 1, and the corresponding Physical Resource Block of distributed sub-carrier mapping is Physical Resource Block " 1 " and Physical Resource Block " 7 ";
In the 4th the data subframe, the value of x (n) is 4, and the corresponding Physical Resource Block of distributed sub-carrier mapping is Physical Resource Block " 4 " and Physical Resource Block " 10 ";
In the 5th the data subframe, the value of x (n) is 2, and the corresponding Physical Resource Block of distributed sub-carrier mapping is Physical Resource Block " 2 " and Physical Resource Block " 8 ";
In the 6th the data subframe, the value of x (n) is 5, and the corresponding Physical Resource Block of distributed sub-carrier mapping is Physical Resource Block " 5 " and Physical Resource Block " 11 ".
Adopt behind this frequency hop sequences in each data burst the corresponding Physical Resource Block schematic diagram of distributed sub-carrier mapping shown in Fig. 2 light color block.
From the foregoing description one as can be known, when each element value that comprises when frequency hop sequences differed from one another, the corresponding Physical Resource Block that distributed sub-carrier shone upon in each subframe was also different, thereby obtained frequency hopping diversity.
For fear of presence of intercell interference, can use different frequency hop sequences between the user terminal of base station and different districts.
In actual applications, also can use a plurality of frequency hop sequences, the use order of each frequency hop sequences of making an appointment between the user terminal of base station.For example: define three frequency hop sequences, be respectively frequency hop sequences A, frequency hop sequences B and frequency hop sequences C; The use of base station and user terminal agreement frequency hop sequences is in proper order: first sequence A, sequence B, sequence C more again, get back to sequence A then; So circulation repeats.
Embodiment two:
Realize that with the network side base station distributed sub-carrier is mapped as example, in base station and user terminal,, in conversion table, comprise: Physical Resource Block index value before the conversion and conversion back corresponding virtual index value in advance at each data burst storage conversion table;
Base station and user terminal mapping mode routinely calculate the Physical Resource Block index value that distributed sub-carrier shines upon, search the corresponding conversion table, obtain the corresponding virtual index value, with the actual physical resources piece of virtual index value corresponding physical Resource Block as the distributed sub-carrier mapping.
For example: N
D-PRB=1, N
D=2, N
PRB=12, comprising six subframes with Frame is example:
The conversion table of first data burst correspondence is:
Table 1
The Physical Resource |
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
The |
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 0 |
The conversion table of second data subframe correspondence is:
Table 2
The Physical Resource |
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
The |
2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 0 | 1 |
The conversion table of the 3rd data subframe correspondence is:
Table 3
The Physical Resource |
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
The |
3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 0 | 1 | 2 |
The conversion table of the 4th data subframe correspondence is:
Table 4
The Physical Resource |
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
The |
4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 0 | 1 | 2 | 3 |
The conversion table of the 5th data subframe correspondence is:
Table 5
The Physical Resource |
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
The |
5 | 6 | 7 | 8 | 9 | 10 | 11 | 0 | 1 | 2 | 3 | 4 |
The conversion table of the 6th data subframe correspondence is:
Table 6
The Physical Resource |
0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 |
The |
6 | 7 | 8 | 9 | 10 | 11 | 0 | 1 | 2 | 3 | 4 | 5 |
According to formula of the prior art (2), obtain Physical Resource Block index value K and be respectively " 0 " and " 6 ", look-up table 1, the corresponding virtual index value is respectively " 1 " and " 7 ", then in first data burst, the corresponding Physical Resource Block of distributed sub-carrier mapping is Physical Resource Block " 1 " and Physical Resource Block " 7 ";
In like manner, look-up table 2, corresponding virtual index value are respectively " 2 " and " 8 ", and then in second data subframe, the corresponding Physical Resource Block of distributed sub-carrier mapping is Physical Resource Block " 2 " and Physical Resource Block " 8 ";
In like manner, look-up table 3, corresponding virtual index value are respectively " 3 " and " 9 ", and then in the 3rd data subframe, the corresponding Physical Resource Block of distributed sub-carrier mapping is Physical Resource Block " 3 " and Physical Resource Block " 9 ";
In like manner, look-up table 4, corresponding virtual index value are respectively " 4 " and " 10 ", and then in the 4th data subframe, the corresponding Physical Resource Block of distributed sub-carrier mapping is Physical Resource Block " 4 " and Physical Resource Block " 10 ";
In like manner, look-up table 5, corresponding virtual index value are respectively " 5 " and " 11 ", and then in the 5th data subframe, the corresponding Physical Resource Block of distributed sub-carrier mapping is Physical Resource Block " 5 " and Physical Resource Block " 11 ";
In like manner, look-up table 6, corresponding virtual index value are respectively " 6 " and " 0 ", and then in the 6th data subframe, the corresponding Physical Resource Block of distributed sub-carrier mapping is Physical Resource Block " 6 " and Physical Resource Block " 0 ".
After adopting above-mentioned conversion table, the corresponding Physical Resource Block schematic diagram of distributed sub-carrier mapping is shown in Fig. 3 light color block in each data burst.
By the foregoing description two as can be known, when the conversion table of each data burst correspondence differed from one another, the corresponding Physical Resource Block that distributed sub-carrier shone upon in each subframe was also different, thereby obtained frequency hopping diversity.
Equally, for fear of the interference between the sub-district, can be so that the pairing mapping table of data burst of the same position of the user terminal of base station and different districts storage differs from one another.
Adopt the said method of the embodiment of the invention, particularly (HybridAutomatic Repeat Request HARQ) has corresponding gain among the user mixing automatic repeat requests.Multimedia broadcast multi-broadcasting business (Multimedia Broadcast Multicast Service, MBMS), corresponding gain is also arranged in the broadcast.Fig. 4 and Fig. 5 are the simulation results under following table 7 listed simulation parameters, wherein, Block Error Rate comparison curves coordinate diagram when Fig. 4 carries out the distributed sub-carrier mapping for adopting embodiment of the invention method and art methods, the throughput comparison curves coordinate diagram when Fig. 5 carries out the distributed sub-carrier mapping for adopting embodiment of the invention method and art methods.
Table 7
Transmission bandwidth | 10MHz |
Carrier frequency | 2GHz |
Subframe lengths | 0.60ms |
Subcarrier spacing | 10kHz |
FFT counts | 1024 |
Channel estimating | Ideal communication channel is estimated |
Chnnel coding | CC1/2 |
Modulation system | 16QAM |
Channel circumstance | Typical Urban typical urban environment/6 footpaths |
Translational speed | 30 kilometers/hour |
The HARQ process | Chase merges |
|
6 subframes |
Power control | Desirable power control |
|
3 |
The RB size | 24 subcarriers |
By Fig. 4, Fig. 5 as can be known, adopt the embodiment of the invention to reduce Block Error Rate, improved throughput.
According to the said method of the embodiment of the invention, the embodiment of the invention provides a kind of network equipment 10, and its structural representation comprises as shown in Figure 6:
The first input/output interface module 101 is used for the input and output of signaling/data;
The first mapping ruler memory module 102, the mapping ruler of mapping distributed sub-carrier to physical resource blocks in each data burst of store frames of data;
Distributed sub-carrier mapping block 103, mapping ruler according to storage in the first mapping ruler memory module 102, in each data burst, distributed sub-carrier is mapped in the corresponding physical Resource Block, sends Frame to user terminal by the first input/output interface module 101.
Comprise first sub module stored 1021 in the first mapping ruler memory module 102, store a plurality of frequency hop sequences and with the corresponding relation of each sub-district;
Distributed sub-carrier mapping block 103 comprises first mapping submodule 1031, calculate the Physical Resource Block index value of distributed sub-carrier mapping by the conventional mapping method of prior art, add the corresponding element value of the corresponding frequency hop sequences of this sub-district, determine the actual physical resources piece position of distributed sub-carrier mapping in each data burst.
Can also comprise second sub module stored 1022 in the first mapping ruler memory module 102, be each sub-district storage conversion table corresponding with each data burst; Comprise in the described conversion table: Physical Resource Block index value before the conversion and conversion back corresponding virtual index value;
Can also comprise second mapping submodule 1032 in the distributed sub-carrier mapping block 103, calculate the Physical Resource Block index value of distributed sub-carrier mapping by the conventional mapping mode of prior art, search relevant conversion table, obtain the corresponding virtual index value, with the actual physical resources piece of virtual index value corresponding physical Resource Block as the distributed sub-carrier mapping.
Above-mentioned network equipment 10 provided by the invention is the network side base station.
The embodiment of the invention also provides a kind of user terminal 20, and its structural representation comprises the second input/output interface module 201 as shown in Figure 7, also comprises:
The second mapping ruler memory module 202, the mapping ruler of mapping distributed sub-carrier to physical resource blocks in each data burst of store frames of data;
Distributed sub-carrier is separated mapping block 203, receive the Frame that the base station sends by the second input/output interface module 201, according to the mapping ruler of storage in the second mapping ruler memory module 202, determine the Physical Resource Block that distributed sub-carrier shone upon in each data burst.
Comprise the 3rd sub module stored 2021 in the second mapping ruler memory module 202, store one or more frequency hop sequences;
Distributed sub-carrier is separated mapping block 203 and is comprised that first separates mapping submodule 2031, calculate the Physical Resource Block index value of distributed sub-carrier mapping by the conventional mapping method of prior art, add the corresponding element value of employed frequency hop sequences, determine the actual physical resources piece position of distributed sub-carrier mapping in each data burst.
Can also comprise the 4th sub module stored 2022 in the second mapping ruler memory module 202, store the conversion table corresponding with each data burst; Comprise in the described conversion table: Physical Resource Block index value before the conversion and conversion back corresponding virtual index value;
Distributed sub-carrier is separated and can also be comprised in the mapping block 203 that second separates mapping submodule 2032, calculate the Physical Resource Block index value of distributed sub-carrier mapping by the conventional mapping mode of prior art, search the corresponding conversion table, obtain the corresponding virtual index value, with the actual physical resources piece of virtual index value corresponding physical Resource Block as the distributed sub-carrier mapping.
In sum, the embodiment of the invention is by the mapping ruler of mapping distributed sub-carrier to physical resource blocks in each data burst of preliminary setting data frame in base station and user terminal; The base station is mapped to distributed sub-carrier in the corresponding physical Resource Block in each data burst according to described mapping ruler, sends Frame to user terminal; After user terminal receives Frame, determine the Physical Resource Block that distributed sub-carrier shone upon in each data burst according to identical mapping ruler.Like this, just can be so that the corresponding Physical Resource Block that distributed sub-carrier is mapped in each data burst differ from one another, thus obtain frequency hopping diversity.
The embodiment of the invention one discloses a kind of mapping method that adopts frequency hop sequences, base station and user terminal mapping method are routinely added frequency hop sequences corresponding element value after calculating the Physical Resource Block index value of distributed sub-carrier mapping, determine the actual physical resources piece position of distributed sub-carrier mapping in each data burst.This method realizes simple, and can adopt different frequency hop sequences in each sub-district, effectively avoids presence of intercell interference.
The embodiment of the invention two also discloses a kind of mapping method that adopts conversion table, in base station and user terminal,, comprise in the conversion table: Physical Resource Block index value before the conversion and conversion back corresponding virtual index value in advance at each data burst storage conversion table; Base station and user terminal mapping mode are routinely searched the corresponding conversion table after calculating the Physical Resource Block index value of distributed sub-carrier mapping, obtain the virtual index value, with the actual physical resources piece of described virtual index value corresponding physical Resource Block as the distributed sub-carrier mapping, thereby make the corresponding Physical Resource Block that distributed sub-carrier is mapped in each data burst differ from one another, obtain frequency hopping diversity.
Obviously, those skilled in the art can carry out various changes and modification to the embodiment of the invention and not break away from the spirit and scope of the present invention.Like this, if these of the embodiment of the invention are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (15)
1. the method for a mapping distributed sub-carrier to physical resource blocks is characterized in that, comprising:
The mapping ruler of mapping distributed sub-carrier to physical resource blocks in each data burst of preliminary setting data frame in network side and user terminal;
Described network side is mapped to distributed sub-carrier in the corresponding physical Resource Block in each data burst according to described mapping ruler, sends Frame to described user terminal;
After described user terminal receives described Frame, determine the Physical Resource Block that distributed sub-carrier shone upon in each data burst according to described mapping ruler.
2. the method for claim 1 is characterized in that, stores frequency hop sequences in described network side and user terminal in advance, and the element number that described frequency hop sequences comprises equals the data burst number that described Frame comprises;
Described network side and user terminal mapping method routinely calculate the Physical Resource Block index value that distributed sub-carrier shines upon, add described frequency hop sequences corresponding element value, determine the actual physical resources piece position of distributed sub-carrier mapping in each data burst.
3. method as claimed in claim 2 is characterized in that, each element value that described frequency hop sequences comprises differs from one another.
4. method as claimed in claim 2 is characterized in that, uses different frequency hop sequences between the user terminal of described network side and different districts.
5. method as claimed in claim 2 is characterized in that, uses the pre-sequence of a plurality of jumpings between the user terminal of described network side and same sub-district, and the use of each frequency hop sequences of making an appointment order.
6. the method for claim 1, it is characterized in that, in described network side and user terminal,, comprise in the described conversion table: Physical Resource Block index value before the conversion and conversion back corresponding virtual index value in advance at each data burst storage conversion table;
Described network side and user terminal mapping mode routinely calculate the Physical Resource Block index value that distributed sub-carrier shines upon, search described conversion table, obtain the corresponding virtual index value, with the actual physical resources piece of described virtual index value corresponding physical Resource Block as the distributed sub-carrier mapping.
7. method as claimed in claim 6 is characterized in that the conversion table of each data burst correspondence differs from one another.
8. method as claimed in claim 6 is characterized in that, the pairing conversion table of data burst of the same position of the user terminal storage of described network side and different districts differs from one another.
9. a network equipment comprises the first input/output interface module, it is characterized in that, also comprises:
The first mapping ruler memory module, the mapping ruler of mapping distributed sub-carrier to physical resource blocks in each data burst of store frames of data;
The distributed sub-carrier mapping block, according to the mapping ruler of storing in the described first mapping ruler memory module, in each data burst, distributed sub-carrier is mapped in the corresponding physical Resource Block, sends Frame to user terminal by the described first input/output interface module.
10. network equipment as claimed in claim 9 is characterized in that, comprises first sub module stored in the described first mapping ruler memory module, store a plurality of frequency hop sequences and with the corresponding relation of each sub-district;
Described distributed sub-carrier mapping block comprises first mapping submodule, mapping method calculates the Physical Resource Block index value of distributed sub-carrier mapping routinely, add the corresponding element value of the corresponding frequency hop sequences of this sub-district, determine the actual physical resources piece position of distributed sub-carrier mapping in each data burst.
11. network equipment as claimed in claim 9 is characterized in that, comprises second sub module stored in the described first mapping ruler memory module, is each sub-district storage conversion table corresponding with each data burst; Comprise in the described conversion table: Physical Resource Block index value before the conversion and conversion back corresponding virtual index value;
Described distributed sub-carrier mapping block comprises second mapping submodule, mapping mode calculates the Physical Resource Block index value of distributed sub-carrier mapping routinely, search relevant conversion table, obtain the corresponding virtual index value, with the actual physical resources piece of described virtual index value corresponding physical Resource Block as the distributed sub-carrier mapping.
12., it is characterized in that described network equipment is the network side base station as the described network equipment of any claim of claim 9-11.
13. a user terminal comprises the second input/output interface module, it is characterized in that, also comprises:
The second mapping ruler memory module, the mapping ruler of mapping distributed sub-carrier to physical resource blocks in each data burst of store frames of data;
Distributed sub-carrier is separated mapping block, receive the Frame that the base station sends by the described second input/output interface module, according to the mapping ruler of storing in the described second mapping ruler memory module, determine the Physical Resource Block that distributed sub-carrier shone upon in each data burst.
14. user terminal as claimed in claim 13 is characterized in that, comprises the 3rd sub module stored in the described second mapping ruler memory module, stores one or more frequency hop sequences;
Described distributed sub-carrier is separated mapping block and is comprised that first separates mapping submodule, mapping method calculates the Physical Resource Block index value of distributed sub-carrier mapping routinely, add the corresponding element value of employed frequency hop sequences, determine the actual physical resources piece position of distributed sub-carrier mapping in each data burst.
15. user terminal as claimed in claim 13 is characterized in that, comprises the 4th sub module stored in the described second mapping ruler memory module, stores the conversion table corresponding with each data burst; Comprise in the described conversion table: Physical Resource Block index value before the conversion and conversion back corresponding virtual index value;
Described distributed sub-carrier is separated mapping block and is comprised that second separates mapping submodule, mapping mode calculates the Physical Resource Block index value of distributed sub-carrier mapping routinely, search the corresponding conversion table, obtain the corresponding virtual index value, with the actual physical resources piece of described virtual index value corresponding physical Resource Block as the distributed sub-carrier mapping.
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