CN101043495A - Device and method for dividing resource blocks of wireless communication system - Google Patents
Device and method for dividing resource blocks of wireless communication system Download PDFInfo
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- CN101043495A CN101043495A CN 200610067596 CN200610067596A CN101043495A CN 101043495 A CN101043495 A CN 101043495A CN 200610067596 CN200610067596 CN 200610067596 CN 200610067596 A CN200610067596 A CN 200610067596A CN 101043495 A CN101043495 A CN 101043495A
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Abstract
The division method for channel resource in a wireless communication system comprises: pre-dividing some resource from system physical time-frequency source to carry at least one distributed physical resource unit for distributed transmission, setting the number as n; dividing the residual resource into (N-n) local physical resource units for local distributed transmission; and mapping the distributed/local virtual resource block to the distributed/local physical resource unit, respectively. This invention can provide well frequency diversity effect, and affects little to local transmission user.
Description
Technical field
The present invention relates to wireless communication system, relate to a kind of equipment and method of in wireless communication system, dividing channel resource in particular.
Background technology
Now, 3GPP standardization body has set about beginning its existing system standard is carried out long-term evolution (LTE, Long Term Evolution).In the middle of numerous physical layer transmission technology, OFDM (OFDM, Orthogonal Frequency Division Multiplexing) technology is with its higher availability of frequency spectrum, and lower processing complexity becomes in all descending schemes more promising a kind of.Be a kind of multi-carrier modulation communication technology on the OFDM technological essence, its basic principle is the data flow of a two-forty to be decomposed into several rate data streams transmit simultaneously on one group of mutually orthogonal subcarrier.The OFDM technology is because its multicarrier character has performance advantage aspect a lot.
According to existing discussion result about LTE, as shown in Figure 1, Radio Resource in the LTE system is meant time and the frequency resource that system or subscriber equipment can take, can (101-103) do differentiation with radio frames (radio frame) for unit, the time span of radio frames is identical with the time span of the radio frames of WCDMA system, and promptly its time length is 10ms; Each frame is subdivided into a plurality of subframes (sub-frame) (104-107), and present hypothesis is that each radio frames comprises 20 subframes, and the time span of subframe is 0.5ms; Each subframe comprises a plurality of OFDM symbols again, according to present hypothesis, the time span of effective OFDM symbol is about 66.7 μ s in the LTE system, the time span of its CP can have two kinds, promptly the time span of short CP is approximately 4.8 μ s, the about 16.7 μ s of the time span of long CP, long CP subframe is used for many Cell Broadcast CB/multicasts and the very large situation of radius of society.Short CP subframe (108) comprises 7 OFDM symbols, and long CP subframe (109) comprises 6 OFDM symbols.In the LTE system, the minimum transfer time interval, (TTI) just equaled the time span of subframe.
In ofdm system, the mode that has two kinds of basic channel resources to divide.First kind is local formula transmission channel, promptly some adjacent subcarriers is divided into a channel as Resource Block, and this method helps utilizing multi-user diversity, thereby higher throughput of system is provided.Another kind is the distributed transmission channel, the resource of promptly distributing to some users be distributed to whole with certain rules or partial-band in, thereby the gain of frequency diversity is bigger.These two kinds of channel distribution modes respectively have superiority and replenish mutually, can be applied to simultaneously in the same subframe, thereby in a subframe some users be obtained multi-user diversity gain, and the user obtains frequency diversity gain to other.
In current discussion, the notion of Physical Resource Block (Physical resource block) and virtual resource blocks (Virtual resource block) has been proposed about LTE channel resource dividing mode.Physical Resource Block comprises M continuous sub-carriers on frequency domain, comprise N continuous OFDM symbol simultaneously in time.Virtual resource blocks is abstract to channel resource on Physical Resource Block, and virtual resource blocks is divided into distributed virtual resource block and local formula virtual resource blocks.Distributed virtual resource block is corresponding to the resource of distributed transmission channel, and local formula virtual resource blocks is corresponding to the resource of local formula transmission channel.
According to current discussion result, mainly contain two classes are divided distributed transmission channel resource and local formula transmission channel resources simultaneously in same subframe method:
1) method of priority allocation distributed channel resource
System is preferably the user equipment allocation channel resource of distributed transmission, in order to maximize the effect of diversity, the channel resource that distributed virtual resource block is distributed is evenly distributed in the system time frequency resource, that is to say that the resource of each distributed virtual resource block is by punching uniformly obtains to each Physical Resource Block.The resource of Sheng Xia Physical Resource Block is divided into a plurality of local formula virtual resource blocks continuously then.Can comprise two kinds of diverse ways when dividing, a kind of processing method is no matter there are how many running time-frequency resources to be perforated as distributed transmission, the invariable number of local formula virtual resource blocks, promptly local formula virtual resource blocks are mapped to the remaining resource in Physical Resource Block punching back one by one; Another kind of processing method is the virtual resource blocks invariable number that keeps total, when the number of distributed virtual resource block increases, the local formula virtual resource blocks number that remaining resource division becomes reduces, when the decreased number of distributed virtual resource block, the local formula virtual resource blocks number that remaining resource division becomes increases.This processing method is by expanding on frequency domain the Physical Resource Block that is perforated, the running time-frequency resource of destroying during compensation assignment profile formula virtual resource blocks, thus the number of resources that guarantees each local formula virtual resource blocks is constant.In the method for this priority allocation distributed channel resource, the resource of distributed virtual resource block and local formula virtual resource blocks will be mapped in the same Physical Resource Block.
2) method of the local formula channel resource of priority allocation
System is preferably the user equipment allocation channel resource of local formula transmission, and local formula virtual resource blocks directly is mapped to a part of Physical Resource Block one by one in subframe.Distributed virtual resource block is then by another part Physical Resource Block carrying, and when distributed virtual resource block has when a plurality of, a plurality of distributed virtual resource block are mapped to a part of resource of each Physical Resource Block equably.When each Physical Resource Block of mapping distributed virtual resource block was separated by enough far on frequency domain, its diversity was better.In the method for the local formula channel resource of this priority allocation, a Physical Resource Block can not carry distributed virtual resource block and local formula virtual resource blocks simultaneously.
There is certain problem in the above-mentioned method of mentioning of dividing distributed transmission channel resource and local formula transmission channel resources in same subframe simultaneously:
1) for the method for priority allocation distributed channel resource, when system is the local formula virtual resource blocks of fixed number to remaining resource division, along with the variation of the number of the distributed virtual resource block of distributing, the number of the running time-frequency resource that each local formula virtual resource blocks occupies changes thereupon; And when the distributed virtual resource block of system assignment is many, the running time-frequency resource number of each local formula virtual resource blocks is fewer, this will influence local formula transmission performances, and with respect to each local formula virtual resource blocks data quantity transmitted, descending control signaling expense and uplink signal-channel quality (CQI) are reported expense and are all increased;
2) for the method for priority allocation distributed channel resource, when system when the number of the local formula virtual resource blocks of remaining resource division changes with the variation of the number of distributed virtual resource block, although can guarantee total virtual resource blocks invariable number, be used for channel quality (CQI) measurement of local formula virtual resource blocks and the frequency bandwidth of reporting and change thereupon; And when the distributed virtual resource block of system assignment is many, the running time-frequency resource of each local formula virtual resource blocks will be crossed over very big frequency bandwidth, at this moment adopt the gain of frequency scheduling to descend;
3) for the method for the local formula channel resource of priority allocation, when the distributed virtual resource block number that needs distribute fewer, just be used for the Physical Resource Block number of distributed transmission when fewer, the effect of frequency diversity is relatively poor, especially when only needing to distribute to adopt a distributed virtual resource block, it can only be mapped to a Physical Resource Block, and its diversity is the poorest.
Summary of the invention
The present invention is directed to the problem that existing method exists, propose equipment and method that a kind of line communication system is divided channel resource.
According to an aspect of of the present present invention, a kind of wireless communication system is divided the method for channel resource, comprises the steps:
A) divide a part of running time-frequency resource in advance on the system physical running time-frequency resource, be used to carry the distributed physical resource unit of at least one suitable distributed transmission, remember that its number is n;
B) Sheng Xia system physical running time-frequency resource is divided into the local formula physical resource unit of (N-n) individual suitable local formula transmission;
C) distributed virtual resource block and local formula virtual resource blocks are mapped to distributed physical resource unit and local formula physical resource unit respectively.
According to another aspect of the present invention, the equipment of a kind of base station multiplexing multiple-user data comprises:
A) subcarrier mapping block is used for the subcarrier of the data map of the data of distributed transmission subscriber equipment and local formula transmission user equipment to the virtual resource blocks correspondence of its distribution;
B) OFDM modulation module is used for the signal after the mapping is carried out the OFDM modulation;
According to another aspect of the present invention, a kind of equipment of its data of subscriber equipment demultiplexing comprises:
A) OFDM demodulation module, the data that are used for the base station is sent are carried out the OFDM demodulation;
B) separate the subcarrier mapping block, be used for subscriber equipment and give in base station assigns and must arrive the base station on its subcarrier of virtual resource blocks correspondence and send to its signal
Adopt the method for the division channel resource that the present invention proposes, the number that can make the running time-frequency resource that each virtual resource blocks comprises does not change with the variation of the number of distributed virtual resource block.When the subscriber equipment of the employing of the needs in system distributed transmission is fewer, each distributed virtual resource block can provide frequency diversity effect preferably, less to the influence of adopting local formula transmission user simultaneously, smaller to the signaling requirement of system uplink channel quality report.
Description of drawings
Fig. 1: the frame structure of LTE system;
The pre-assigned physical resource unit distribution map of Fig. 2: embodiment one system;
Physical resource unit distribution diagram when Fig. 3: embodiment one divides two distributed virtual resource block;
Physical resource unit distribution diagram when Fig. 4: embodiment one divides three distributed virtual resource block;
Fig. 5: the pre-assigned physical resource unit distribution map of embodiment two system;
Physical resource unit distribution diagram when Fig. 6: embodiment two divides two distributed resource blocks;
Physical resource unit distribution diagram when Fig. 7: embodiment two divides three distributed resource blocks;
Fig. 8 a: example of base station transmitter hardware block diagram;
Fig. 9 a: example of subscriber equipment receiver hardware block diagram;
Figure 10: the equipment drawing of base station multiplexing multiple-user data;
Figure 11: the equipment drawing of its data of subscriber equipment demultiplexing;
Embodiment
The present invention proposes the method that a kind of wireless communication system is divided channel resource.The present invention has used the notion of physical resource unit in description, it be equivalent to current LTE discuss in the notion of employed Physical Resource Block, difference is in the present invention to have distributed physical resource unit and local formula physical resource unit simultaneously according to the forms of distribution of physical layer resources.The supposing the system resource division is a N virtual resource blocks, and physical resource unit of the present invention and virtual resource blocks division methods comprise the steps:
A) divide a part of running time-frequency resource in advance on the system physical running time-frequency resource, the distance of time-frequency lattice on frequency domain of this part physics running time-frequency resource is bigger, is used to carry the distributed physical resource unit of at least one suitable distributed transmission, remembers that its number is n;
B) Sheng Xia system physical running time-frequency resource is divided into the local formula physical resource unit of (N-n) individual suitable local formula transmission;
C) distributed virtual resource block and local formula virtual resource blocks are mapped to distributed physical resource unit and local formula physical resource unit respectively.
For method of the present invention, when the distributed virtual resource block number of actual needs in the system equaled n, distributed virtual resource block was mapped to distributed physical resource unit one by one; Local formula virtual resource blocks is mapped to local formula physical resource unit one by one; When the distributed virtual resource block number of actual needs in the system during less than n, distributed virtual resource block is mapped to a part of distributed physical resource unit; The local formula virtual resource blocks of a part is mapped to the distributed physical resource unit that the remaining formula that is not distributed virtual resource blocks uses, and other local formula virtual resource blocks are mapped to local formula physical resource unit; When the distributed virtual resource block number of actual needs in the system during greater than n, each distributed virtual resource block is mapped on the resource of the resource of the pre-assigned distributed physical resource unit of system and a part of local formula physical resource unit uniformly; Local formula virtual resource blocks is mapped to the local formula physical resource unit that the remaining formula that is not distributed virtual resource blocks uses.
For method of the present invention, a kind of method is to make each physical resource unit comprise the running time-frequency resource of fixed number; Another method is to make each physical resource unit comprise the running time-frequency resource that number equates substantially; Another processing method is to determine the number of running time-frequency resource in each physical resource unit according to system requirements.
For method of the present invention, the number n of its distributed physical resource unit can fixedly install in the network planning stage, also can be in network operation process semi-static adjustment.
Method to the present invention's proposition, whether distributed physical resource unit and local formula physical resource unit according to system divides be interlaced, be whether distributed physical resource unit can be thought to be further divided into two kinds of structures by local formula physical resource unit punching is obtained.
For distributed physical resource unit and local formula physical resource unit can be interlaced situation, above-mentioned steps a) in the resource of a kind of processing method each distributed physical resource unit that is system divides be distributed to uniformly on the whole frequency band, in subframe, be that unit divides distributed resource promptly with the subcarrier; Another kind of processing method is that the resource of each distributed physical resource unit of system divides is distributed on all symbols in whole frequency band and the subframe uniformly.
There is not interlaced situation for distributed resource blocks and local formula Resource Block, above-mentioned steps a) the resource of the distributed physical resource unit of middle system divides becomes being distributed on some interior subcarriers of system bandwidth of piece, promptly in subframe be that unit divides distributed resource, and guarantee that remaining subcarrier can be divided into the continuous local formula physical resource unit of experimental process carrier wave with the subcarrier.System guarantees that as far as possible the distance of subcarrier spacing of distributed physical resource unit is bigger, thereby the frequency diversity effect is relatively good.
Step c) to method of the present invention, when the number of the distributed virtual resource block of actual needs in the system during greater than n, remember that its number is individual for (N+m), system is used for distributed transmission to the resource of the part in (N-n) the local formula physical resource unit of dividing (m) physical resource unit, in the resource set of the n that the resource of this part local formula physical resource unit and system set in advance a distributed physical resource unit and uniform distribution give (n+m) individual distributed virtual resource block.When allowing between subframe frequency hopping or mixing the retransmission operation that retransmits (HARQ) automatically, system is used for m physical resource unit of distributed transmission in can the local formula physical resource unit of conversion (N-n).
Figure 10 is the equipment drawing of base station of the present invention multiplexing multiple-user data.As shown in the figure, the base station is the subcarrier (1001) of the data map of the data of distributed transmission subscriber equipment and local formula transmission user equipment to the corresponding physical resource unit of virtual resource blocks of its distribution, the data of distributed transmission subscriber equipment are carried in system with distributed virtual resource block, the data of carrying local formula transmission user equipment with local formula virtual resource blocks, and each virtual resource blocks is mapped to its corresponding physical Resource Unit; Signal after the base station is shone upon subcarrier is then carried out OFDM modulation (1002) and is carried out subsequent operation.
Figure 11 is the equipment drawing of its data of subscriber equipment demultiplexing of the present invention.OFDM demodulation (FFT) (1101) is carried out in the data processing premenstruum (premenstrua) back that the base station sends; Then, subscriber equipment obtains its signal (1102) and carries out subsequent treatment on the subcarrier of base station assigns to its virtual resource blocks corresponding physical Resource Unit.
Embodiment
This part has provided two embodiment of this invention, and supposing the system is allocated a distributed physical resource unit in advance here, and the situation of allocating a plurality of distributed physical resource unit in advance can realize with similar method.Too tediously long for fear of the description that makes this patent, in the following description, omitted the detailed description of function that the public is known or device etc.
First embodiment:
In the present embodiment, the supposing the system resource division is 12 physical resource unit, each physical resource unit comprises the running time-frequency resource of equal number, and the resource of the hypothesis distributed physical resource unit of distributing evenly spreads on all symbols of system bandwidth and subframe, and promptly the resource of the distributed physical resource unit of system divides and local formula physical resource unit is interlaced.In order to draw conveniently, the resource distribution pattern of distributed physical resource unit is an example among Fig. 2 ~ Fig. 4.
Fig. 2 is the pre-assigned physical resource unit distribution map of the system under this mode.As shown in the figure, each homodisperse running time-frequency resource has been formed the distributed physical resource unit (200) of a suitable distributed transmission; Sheng Xia running time-frequency resource is divided into 11 local formula physical resource unit (201 ~ 211) that are fit to local formula transmission continuously then; The number of the running time-frequency resource in each physical resource unit (200 ~ 211) equates that DC component (212) is not used in the transmission data.When reality in the system only needs a distributed virtual resource block, distributed physical resource unit (200) carrying distributed virtual resource block; Local formula physical resource unit (201 ~ 211) is used to carry local formula virtual resource blocks.
Fig. 3 is the physical resource unit distribution diagram when two distributed virtual resource block of actual needs in the system under this mode.Identical with Fig. 2, system has allocated a distributed physical resource unit in advance, i.e. the running time-frequency resource of each dispersion has been formed a distributed physical resource unit (300); Sheng Xia running time-frequency resource is divided into 11 local formula physical resource unit (301 ~ 311) that are fit to local formula transmission continuously then; The number of running time-frequency resource equates in the physical resource unit (300 ~ 311), and DC component (312) is not used for transmitting data.In order to support two distributed virtual resource block, as shown in Figure 3, the resource of a physical resource unit in the resource of distributed physical resource unit (300) and the local formula physical resource unit (301 ~ 311) (being 301 among the figure) is used for distributed transmission, and two distributed virtual resource block are shared the resource in distributed physical resource unit (300) and the local formula physical resource unit (301) uniformly; Local formula physical resource unit (302 ~ 311) is used to carry local formula virtual resource blocks.In different subframes, when frequency hopping or mixing retransmit the retransmission operation of (HARQ) automatically between the permission subframe, can adopt the resource of the different physical resource unit in the physical resource unit (301 ~ 311) to be used for distributed transmission.
Fig. 4 is the physical resource unit distribution diagram when three distributed virtual resource block of actual needs in the system under this mode.Identical with Fig. 2, system has allocated a distributed physical resource unit in advance, i.e. the running time-frequency resource of each dispersion has been formed a distributed physical resource unit (400); Sheng Xia running time-frequency resource is divided into 11 local formula physical resource unit (401 ~ 411) that are fit to local formula transmission continuously then; The number of running time-frequency resource equates in the physical resource unit (400 ~ 411), and DC component (412) is not used for transmitting data.In order to support three distributed virtual resource block, as shown in Figure 4, the resource of two physical resource unit in the resource of distributed physical resource unit (400) and the local formula physical resource unit (401 ~ 411) (being 401 and 411 among the figure) is used for distributed transmission, three distributed virtual resource block are shared the resource in the physical resource unit (400,401 and 411) uniformly; Local formula physical resource unit (402 ~ 410) is used to carry local formula virtual resource blocks.In different subframes, when frequency hopping or mixing retransmit the retransmission operation of (HARQ) automatically between the permission subframe, can adopt the resource of the different physical resource unit in the local formula physical resource unit (401 ~ 411) to be used for distributed transmission.
Fig. 8 is an example of base station transmitter hardware block diagram of the present invention.As shown in the figure, coded modulation (803) is carried out to the data (801) of distributed transmission subscriber equipment in the base station, simultaneously the data (802) of local formula transmission user equipment is carried out coded modulation (804); Then, the base station is mapped to the modulated signal of each subscriber equipment the subcarrier (805) of the virtual resource blocks corresponding physical Resource Unit of its distribution; Next OFDM modulation (IFFT) (806) are carried out in the base station, add Cyclic Prefix (807), steering D/A conversion (808) is at last by radio frequency sending set (809) and antenna (810) emission.
Fig. 9 is an example of subscriber equipment receiver hardware block diagram of the present invention.Subscriber equipment receives from signal of base station by antenna (900) and radio-frequency transmitter (901), through mould/transformation of variables (902), removes Cyclic Prefix (903), carries out OFDM demodulation (FFT) (904); Then, subscriber equipment is given in base station assigns on its subcarrier of virtual resource blocks corresponding physical Resource Unit and is obtained its signal (905), and it is carried out demodulation sign indicating number (906) thus obtain the data (907) that the base station sends.
Second embodiment:
In the present embodiment, the supposing the system resource need be divided into 12 physical resource Resource Units, each physical resource unit comprises the running time-frequency resource of equal number, and the resource of the resource of the hypothesis distributed physical resource unit of distributing and local formula physical resource unit do not exist interlacedly, separates fully on frequency domain.
Fig. 5 is the pre-assigned physical resource unit distribution map of the system under this mode.As shown in the figure, the number of resources that resource fritter (5000) and resource fritter (5001) comprise equates or is equal substantially that they form a distributed physical resource unit (500) that is applicable to distributed transmission jointly; Sheng Xia resource is divided into the local formula physical resource unit (501 ~ 511) of 11 suitable local formula transmission continuously then; The number of running time-frequency resource equates in the physical resource unit (500 ~ 511), and DC component (512) is not used for transmitting data.When reality in the system only needed a distributed virtual resource block, distributed physical resource unit (500) was used to carry distributed virtual resource block; Local formula physical resource unit (501 ~ 511) is used to carry local formula virtual resource blocks.
Fig. 6 is the physical resource unit distribution diagram when two distributed virtual resource block of actual needs in the system under this mode.Identical with Fig. 5, system has allocated a distributed physical resource unit in advance, and promptly resource fritter (6000) and resource fritter (6001) have been formed a distributed physical resource unit (600); Sheng Xia resource is divided into 11 physical resource unit (601 ~ 611) that are fit to local formula transmission continuously then; The number of running time-frequency resource equates in the physical resource unit (600 ~ 611), and DC component (612) is not used for transmitting data.In order to support two distributed virtual resource block, as shown in Figure 6, the resource of a physical resource unit in the resource of distributed physical resource unit (600) and the local formula physical resource unit (601 ~ 611) (being 606 among the figure) is used for distributed transmission, and two distributed virtual resource block are shared the resource in distributed physical resource unit (600) and the local formula physical resource unit (606) uniformly; Local formula physical resource unit (601 ~ 605,607～611) is used to carry local formula virtual resource blocks.In different subframes, when frequency hopping or mixing retransmit the retransmission operation of (HARQ) automatically between the permission subframe, can adopt the resource of the different physical resource unit in the local formula physical resource unit (601 ~ 611) to be used for distributed transmission.
Fig. 7 is the physical resource unit distribution diagram when three distributed virtual resource block of actual needs in the system under this mode.Identical with Fig. 5, system has allocated a distributed physical resource unit in advance, and promptly resource fritter (7000) and resource fritter (7001) have been formed a distributed physical resource unit (700); Sheng Xia running time-frequency resource is divided into 11 distributed physical resource unit (701 ~ 711) that are fit to local formula transmission continuously then; The number of running time-frequency resource equates in the physical resource unit (700 ~ 711), and DC component (712) is not used for transmitting data.In order to support three distributed virtual resource block, as shown in Figure 7, the resource of two local formula physical resource unit in the resource of distributed physical resource unit (700) and the local formula physical resource unit (701 ~ 711) (being 704 and 708 among the figure) is used for distributed transmission, three distributed virtual resource block are shared the resource in the physical resource unit (700,704 and 708) uniformly; Local formula physical resource unit (701 ~ 703,705～707,709～711) is used to carry local formula virtual resource blocks.In different subframes, when frequency hopping or mixing retransmit the retransmission operation of (HARQ) automatically between the permission subframe, can adopt the resource of the different physical resource unit in the local formula physical resource unit (701 ~ 711) to be used for distributed transmission.
Claims (22)
1. the method that wireless communication system is divided channel resource comprises the steps:
A) divide a part of running time-frequency resource in advance on the system physical running time-frequency resource, be used to carry the distributed physical resource unit of at least one suitable distributed transmission, remember that its number is n;
B) Sheng Xia system physical running time-frequency resource is divided into the local formula physical resource unit of (N-n) individual suitable local formula transmission;
C) distributed virtual resource block and local formula virtual resource blocks are mapped to distributed physical resource unit and local formula physical resource unit respectively.
2. method according to claim 1, it is characterized in that when the distributed virtual resource block number of actual needs in the system equals n, distributed virtual resource block is mapped to distributed physical resource unit one by one, and local formula virtual resource blocks is mapped to local formula physical resource unit one by one.
3. method according to claim 1, when it is characterized in that distributed virtual resource block number when actual needs in the system is less than n, distributed virtual resource block is mapped to a part of distributed physical resource unit, the local formula virtual resource blocks of a part is mapped to the distributed physical resource unit that the remaining formula that is not distributed virtual resource blocks uses, and other local formula virtual resource blocks are mapped to local formula physical resource unit.
4. method according to claim 1, when it is characterized in that distributed virtual resource block number when actual needs in the system is greater than n, each distributed virtual resource block is mapped on the resource of the resource of the pre-assigned distributed physical resource unit of system and a part of local formula physical resource unit uniformly, and local formula virtual resource blocks is mapped to the local formula physical resource unit that the remaining formula that is not distributed virtual resource blocks uses.
5. method according to claim 1 is characterized in that each physical resource unit comprises the running time-frequency resource of fixed number.
6. method according to claim 1 is characterized in that each physical resource unit comprises the running time-frequency resource that number equates substantially.
7. method according to claim 1 is characterized in that determining according to system requirements the number of running time-frequency resource in each physical resource unit.
8. method according to claim 1 is characterized in that the number n of distributed physical resource unit fixedly installs during the stage in the network planning.
9. the semi-static adjustment in network operation process of method according to claim 1, the number n that it is characterized in that distributed physical resource unit.
10. method according to claim 1 is characterized in that system divides gives the running time-frequency resource of distributed physical resource unit and local formula physical resource unit interlaced.
11. method according to claim 10 is characterized in that system is that the resource of the unit distributed physical resource unit of dividing is distributed on the whole frequency band uniformly with the subcarrier.
12. method according to claim 10, the resource that it is characterized in that the distributed physical resource unit of system divides are distributed on all symbols in whole frequency band and the subframe uniformly.
13. method according to claim 1 is characterized in that system divides gives the running time-frequency resource of distributed physical resource unit and local formula physical resource unit not interlaced.
14. method according to claim 13 is characterized in that system is that unit becomes division some sub carrier group in piece ground to become distributed physical resource unit with the subcarrier in system bandwidth.
15. method according to claim 13 is characterized in that system guarantees the subcarrier of the distributed physical resource unit bigger distance of being separated by as much as possible on frequency domain.
16. method according to claim 13 is characterized in that system guarantees that remaining subcarrier can be divided into the continuous local formula physical resource unit of experimental process carrier wave.
17. method according to claim 4, when it is characterized in that distributed virtual resource block number when actual needs in the system is greater than n, it is individual to be designated as (n+m), and system is used to carry distributed virtual resource block to the resource of the part in (N-n) the local formula physical resource unit of dividing (m) physical resource unit.
18. method according to claim 17 is characterized in that in the resource set of the resource of described m local formula physical resource unit and n the distributed physical resource unit that system sets in advance and (n+m) individual distributed virtual resource block is given in uniform distribution.
19. method according to claim 17, it is characterized in that when allowing between subframe frequency hopping or mixing the retransmission operation that retransmits (HARQ) automatically system is used to carry m physical resource unit of distributed virtual resource block in can the local formula physical resource unit of conversion (N-n).
20. the equipment of base station multiplexing multiple-user data comprises:
A) subcarrier mapping block is used for the subcarrier of the data map of the data of distributed transmission subscriber equipment and local formula transmission user equipment to the virtual resource blocks corresponding physical Resource Unit of its distribution;
B) OFDM modulation module is used for the signal after the mapping is carried out the OFDM modulation.
21. equipment according to claim 20, it is characterized in that the data of system with distributed virtual resource block carrying distributed transmission subscriber equipment, the data of carrying local formula transmission user equipment with local formula virtual resource blocks, and each virtual resource blocks is mapped to its corresponding physical Resource Unit.
22. the equipment of its data of subscriber equipment demultiplexing comprises:
A) OFDM demodulation module is carried out the OFDM demodulation to the data from the place to go cyclic prefix module;
B) subcarrier is separated mapping block, is used for subscriber equipment and gives in base station assigns and must arrive the base station on its subcarrier of virtual resource blocks corresponding physical Resource Unit and send to its signal.
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