CN101080081B

CN101080081B - Allocation and indication method of system resource

Info

Publication number: CN101080081B
Application number: CN 200610060844
Authority: CN
Inventors: 蒋培刚; 刘斌
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2006-05-25
Filing date: 2006-05-25
Publication date: 2012-12-12
Anticipated expiration: 2026-05-25
Also published as: CN101080081A

Abstract

This invention relates to a distribution and instruction method for system resources including: applying a resource DVRB continuous distribution method for the dispatched scattered UE from the given simple mapping from DVRB to PRB and indicating a first UE to occupy the start position of the DVRB and all UE to occupy the length of the DVRB when instructing each UE to distribute the resource, or distributing the continuous resource from long to short according to the length occupied by UE so as to minimize the spending of the DVRB resource distribution instruction signaling in the way of combined coding of control signaling of scattered users then to determine physical resource occupied by UE according to the mapping relation from DVRB to PRB.

Description

The distribution of system resource and indicating means

Technical field

The present invention relates to the communication technology, relate in particular to the resource allocation and the indication technology of communication system.

Background technology

At present, in the communication system, for improving system of broadband wireless communication capacity and spectrum utilization efficiency, often adopt multi-transceiver technology, its basic thought is that a bandwidth carrier is divided into a plurality of subcarriers, and on a plurality of subcarriers, transmits data simultaneously.In application, require the coherence bandwidth of the width of subcarrier less than system channel, the decline on each subcarrier is a flat fading like this, thereby can reduce intersymbol interference, and does not need complicated channel equalization, is fit to the transmission of high-speed data.

Multi-transceiver technology has various ways; Like OFDM (OFDM; Orthogonal FrequencyDivision Multiplexing), CDMA multiple carrier (MC-CDMA; Multicarrier-Code DivisionMultiple Access), multicarrier is directly expanded CDMA (MC-DS-CDMA; Multicarrier-DirectSequence-Code Division Multiple Access), multi-tone CDMA (MT-CDMA; Multitone-Code Division Multiple Access), multicarrier TDMA (MC-TDMA, Multicarrier-Time Division Multiple Access), time-frequency domain two-dimensional expansion and the multiple expansion technique on above basis.

Wherein, The OFDM technology is more representational a kind of technology in the multi-transceiver technology; This technology is in frequency domain, given channel to be divided into many orthogonal sub-channels; And allow subcarrier spectrum to overlap,, just can isolate data-signal from the subcarrier of aliasing as long as satisfy between subcarrier mutually orthogonally.

For effectively utilizing limited frequency spectrum resources; Communication network is usually in different geographical frequency reuse resource; Be that wireless communication system utilizes the geographic area to distinguish, each communication zone in the wireless communication system can be called as a sub-district (cell), for example cellular radio Communication system.Different sub-districts obtains different frequencies, the frequency non-overlapping copies of neighbor cell, and the data transmission interference of the user terminal UE of neighbor cell (User Equipment) just significantly reduces like this.

Not only can carry out channeling to frequency spectrum resource; Also can carry out the time-domain multiplexed of similar channeling to time-domain resource; Be different user terminals and distribute the mode of different running time-frequency resources to realize that multiple users is multiplexing, like orthogonal frequency division multiplex OFDM and single-carrier frequency division multiple access SC-FDMA (Single Carrier-Frequency Division Multiple Access).

In the SC-FDMA communication system; Being adopted as different user terminals distributes the mode of different running time-frequency resources to realize that multiple users is multiplexing; The Resource Block (RB, Resource Block) that the running time-frequency resource that distributes is formed with a plurality of continuous sub-carriers usually is as elementary cell.For reducing the peak-to-average force ratio of multi-carrier transmission; The resource of distributing to each user terminal is one or more continuous Resource Block RB; For any concrete user terminal, its resource that takies can be distributing (Distributed), also can be centralized (Localized); Centralized for user terminal takies continuous frequency, and distributing takies discontinuous frequency.

As shown in Figure 1, a square is represented a time RB among the figure, and the time that UE_1, UE_3, UE_3 take is a distributing; The time that UE_4, UE_5, UE_6 take is centralized.

The base station identifies (ID) comprising the UE that is scheduled for, and is used to transmit the resource allocation information of data through sending control corresponding signaling UE current resource distribution condition.In the sub-district all users all to receive and this part signaling of demodulation to know own current whether being scheduled for, if be dispatched to, confirm that then the base station is the resource location of its distribution.

The coded system of resource allocation control signaling has two kinds:

(1) absolute coding: the ID of each UE and its resource allocation indication information absolute coding.

(2) combined coding: the ID of a plurality of UE and its resource allocation indication information combined coding.

Combined coding can increase the length of encoding block, improves coding gain, under combined coding mode situation, can remove redundant information through the concrete signaling indication method of design, reduces signaling consumption.

As shown in Figure 2, for a kind of ascending resource of prior art distributes the sketch map of indicating means, resource allocation methods is the continuous Resource Block of each CU, then only need indicate its resource original position and length to get final product to the indication of CU resource.Under the combined coding mode; With user UE_ID according to taking the resource block location sequence arrangement; Only need first user's of indication the original position and the length of each CU Resource Block this moment; UE combines UE ID to put in order according to the resource indication signaling that receives again, can obtain taking resource situation.But this indicating means, owing to need the length of each CU Resource Block of indication, so signaling consumption is still bigger.

Support distributing and centralized resource distribution mode in the link that in 3GPP TR 25.814 V1.2.1, proposes; Provide VRB (Virtual Resource Block; Virtual resource blocks) notion; VRB is a virtual Resource Block, comprises some actual physical resources, has following two characteristics:

The size of 1 VRB is represented with RB;

2 VRB can be centralized or distributings, are expressed as LVRB (Localized VRB, localized virtual resource block) and DVRB (Distributed VRB, Distributed Virtual Resource Block) respectively.

Then corresponding virtual resource blocks VRB and PRB (Physical Resource Block; Physical Resource Block) mapping method does; The data of at first supposing a PRB only comprise localized virtual resource block (LVRB) or Distributed Virtual Resource Block (DVRB), do not comprise the two data simultaneously, and the size of establishing VRB is PRB; Then mapping mode is: a localized virtual resource block LVRB is mapped on the LPRB (LocalizedPhysical Resource Block concentrates Physical Resource Block).

And can be described below to the mapping mode of DPRB (Distributed Physical ResourceBlock, distributing Physical Resource Block) to Distributed Virtual Resource Block DVRB, establish N _LVRBBe total RB number that the centralized user that is dispatched in the frame accounts for, available physics RB number is N _PRB, the total RB number that therefore is used for the distributing user is:

N _DPRB＝N _PRB-N _LVRB

If the equal and opposite in direction of the size of DVRB and PRB, N _DVRBIndividual DVRB is denoted as i=0, and 1,2, Λ N _DVRB-1, each DVRB is divided into N _DVRBPart, each part of DVRB places N respectively _DPRBAmong among the individual PRB each.Definition P _{I, j}The j part of representing i. DVRB.Represent P with modulation symbol _{I, j}The big or small S of part _{I, j}, S then _{I, j}Can provide by following formula:

Wherein, S _DVRBThe size of the DVRB that expression is represented with modulation symbol.

J the PRB that DVRB is mapped to comprises N _DVRBIndividual P _{I, j}(i=0,1,2, Λ N _DVRB-1), P _{I, j}Skew in this PRB equals the subscript i of this DVRB, and Fig. 3 is the mapping sketch map of DVRB to PRB.

A fixing N _DPRBIndividual DVRB not only can have good frequency diversity effect to the mapping relations of PRB, and can reduce signaling consumption.If DPRB is spaced apart S, then it can be defined as:

So to distributed N _DPRBIndividual DPRB subscript i=0,1,2, Λ N _DPRB-1, it is mapped to the subscript j of PRB:

J=mod (iS, N _PRB-1) i is other values

For example, if N _PRB=12, to N _DPRBIndividual DVRB is mapped to the subscript of PRB can be by shown in the following table bit diagram:

Table 1N _PRBPRB bit diagram indication in=12 o'clock

N_DPRB	S	Bitmap
			1	12	100000000000
2	6	100000100000
			3	4	100010001000
4	3	100100100100
			5	3	110100100100
6	2	101010101010
			7	2	111010101010
8	2	111110101010
			9	2	111111101010
10	2	111111111010
			11	2	111111111110
12	1	111111111111

In the prior art, with after the simple rule completion mapping, the distributing UE that is dispatched to is distributed continuous DVRB resource between DVRB and the PRB; Take order according to DVRB, arrange UE ID, when indicating; Each UE user is sent a bit diagram indication, and it uses the DVRB situation, therefore, and when the DVRB Resource Block is N; The UE number is K, then needs KN signaling bit altogether.

Can know by foregoing description, in the prior art, the Resource Block that each CU is continuous, corresponding each UE user sends a bit diagram indication, and it uses the DVRB situation, and signaling consumption is bigger.

Summary of the invention

In view of this, the present invention proposes a kind of distribution method and indicating means of distributing CU DVRB resource, to reduce signaling consumption.

A kind of method for distributing system resource wherein, comprising:

Steps A, Distributed Virtual Resource Block DVRB is mapped on the Physical Resource Block PRB;

Step B is to the distributing user UE that is dispatched to, according to the continuous DVRB resource of length descending order distribution of CU DVRB.

Among the said step B, distribute continuous DVRB resource, also comprise according to DVRB taking order, arrange UE ID to behind the above-mentioned UE.

Behind the said step B, also comprise producing the DVRB indication signaling, and the DVRB indication signaling is carried out sending to UE behind the combined coding.

A kind of indicating means of system resource allocation wherein, comprising:

Steps A is after Distributed Virtual Resource Block DVRB is mapped to Physical Resource Block PRB, to the distributing user UE that is dispatched to, according to the continuous DVRB resource of length descending order distribution of CU DVRB;

Step B produces the DVRB indication signaling according to distribution condition, indicates all UE to take DVRB length.

Be 1 user for taking resource size among the said step B, do not indicate.

Said DVRB indication signaling also indicates first UE to take the original position of DVRB.

Be denoted as 0 DVRB if first UE takies all the time, then said DVRB indication signaling only indicates each UE to take the length of DVRB.

Take the signaling that DVRB original position and all UE take DVRB length at first UE of said generation indication; Or only produce under two kinds of situation of the signaling of indicating each UE to take DVRB length, if the DVRB Resource Block is N, the UE number is K, wherein N, K are the integer greater than 1, to first CU DVRB starting position and length L ₁After, to the Length Indication distribution log of second CU DVRB ₂(N-L ₁) bit, by that analogy, the Length Indication of i CU DVRB distributes

Bit, L _jBe the length of j CU DVRB resource.

Take the signaling that DVRB original position and all UE take DVRB length at first UE of said generation indication; Or only produce under two kinds of situation of the signaling of indicating each UE to take DVRB length, if the DVRB Resource Block is N, the UE number is K, and wherein N, K are the integer greater than 1, and to first user's indication signaling, it takies DVRB length is log ₂The N bit, establishing its resource size that takies DVRB is L ₁, then the Length Indication of second CU DVRB is log ₂[min (L ₁, N-L ₁)] bit, wherein (a, b) for getting the function of smaller value between a, b, by that analogy, the Length Indication of i CU DVRB does min Bit, L _jBe the length of j CU DVRB resource.

A kind of indicating means of system resource allocation wherein, comprising:

Steps A, after Distributed Virtual Resource Block DVRB was mapped to Physical Resource Block PRB, the distributing user UE to being dispatched to distributed continuous DVRB resource, and took order according to DVRB, arranged UE ID;

Step B produces the DVRB indication signaling, indicates first UE to take the original position of DVRB and the length that all UE take DVRB.

Be denoted as 0 DVRB if first UE takies all the time, then step B is: said DVRB indication signaling only indicates each UE to take the length of DVRB.

Take the signaling that DVRB original position and all UE take DVRB length at first UE of said generation indication; Or only produce under two kinds of situation of the signaling of indicating each UE to take DVRB length, if the DVRB Resource Block is N, the UE number is K, wherein N, K are the integer greater than 1, to first CU DVRB starting position and length L ₁After the indication, to the Length Indication distribution log of second CU DVRB ₂(N-L ₁) bit, by that analogy, the Length Indication of i CU DVRB distributes

Bit, L _jBe the length of j CU DVRB resource.

Behind the said step B, also comprise the DVRB indication signaling is carried out sending to UE behind the combined coding.

Compared with prior art, since the present invention at given DVRB after the simple mapping of PRB, to the distributing user UE that is dispatched to; Adopt the distribution method of distributing continuous DVRB resource; When each UE of indication distributed the DVRB resource situation, the original position that adopts first UE of indication to take DVRB took the indicating means of the length of DVRB with all UE, or only indicates all UE to take the indicating means of the length of DVRB; So control under the signaling united code the distributing user; DVRB resource allocation indication signaling expense is minimized,, confirm the physical resource of CU then according to the mapping relations of DVRB to PRB.

Description of drawings

Fig. 1 is that the telecommunication system resources of prior art distributes sketch map.

Fig. 2 is a kind of resource allocation indicating method of prior art.

Fig. 3 is the mapping sketch map of the DVRB of prior art to PRB.

Fig. 4 distributes and the indicating means sketch map for the DVRB of the present invention's preferable first execution mode.

Fig. 5 distributes and the indicating means sketch map for the DVRB of the present invention's preferable second execution mode.

Embodiment

For making the object of the invention, technical scheme and advantage clearer,, the present invention is done further detailed explanation below in conjunction with embodiment and accompanying drawing.

Core concept of the present invention is, after the simple mapping of PRB, each UE is distributed continuous DVRB resource at given DVRB; The indicating means that adopts continuous resource to distribute; Promptly CU DVRB resource is distributed continuously, when then distribution being indicated, only need indication current scheduling UE ID; Initial and end position with the continuous DVRB Resource Block that distributes for each UE; UE just can confirm the DVRB resource block location of getting, and UE obtains the actual physical resources situation that it takies according to the mapping of DVRB to PRB then.

Below in conjunction with accompanying drawing, resource allocation methods of the present invention and indicating means are described in detail.

As follows, the resource allocation methods and the concrete course of work of indicating means for preferable first execution mode of the present invention mainly comprise the steps.

Step 101 is accomplished mapping with certain rule between DVRB and the PRB;

Mapping method can be as follows between DVRB and the PRB; The data of at first supposing a PRB only comprise localized virtual resource block (LVRB) or Distributed Virtual Resource Block (DVRB); Do not comprise the two data simultaneously; And the size of establishing VRB is PRB, and then localized virtual resource block LVRB mapping mode is: a localized virtual resource block LVRB is mapped on the LPRB.

And can be described below to the mapping mode of DPRB to Distributed Virtual Resource Block DVRB, establish N _LVRBBe total RB number that the centralized user that is dispatched in the frame accounts for, available physics RB number is N _PRB, the total RB number that therefore is used for the distributing user is:

N _DPRB＝N _PRB-N _LVRB

If the equal and opposite in direction of the size of DVRB and PRB, N _DVRBIndividual DVRB is denoted as i=0, and 1,2, Λ N _DVRB-1, each DVRB is divided into N _DVRBPart, each part of DVRB places N respectively _DPRBAmong among the individual PRB each.Definition P _{I, j}The j part of representing i DVRB.Represent P with modulation symbol _{I, j}The big or small S of part _{I, j}, S then _{I, j}Can provide by following formula:

J the PRB that DVRB is mapped to comprises N _DVRBIndividual P _{I, j}(i=0,1,2, Λ N _DVRB-1), P _{I, j}Skew in this PRB equals the subscript i of this DVRB.

J=mod (iS, N _PRB-1) i is other values

Step 102 is distributed continuous DVRB resource to the distributing UE that is dispatched to, and takies order according to DVRB, arranges UE ID;

Suppose that the whole system transmission bandwidth is divided into N

DVRB Resource Block

0,1, Λ (N-1), need distribute to k UE and carry out transfer of data, and wherein N is the integer greater than 1, and k is the integer greater than 1.N Resource Block is divided into k part, and each part is made up of one or more continuous DVRB Resource Block, and each part is distributed to a UE.

As shown in Figure 4; If the whole system transmission bandwidth is divided into 10 DVRB Resource Block:

DVRB Resource Block

1,2 ..., 10; The distributing user who is dispatched to has 6: UE_1, UE_2, UE_3, UE_4, UE_5, UE_6 need be divided into 6 parts with 10 DVRB Resource Block.

When then 10 continuous DVRB Resource Block being distributed to 6 above-mentioned users in order, each user's order is also uncertain, as long as after guaranteeing the DVRB resource block assignments, the order of each DVRB Resource Block also is continuous.As shown in Figure 4; Its distribution method specifically can be for distributing to UE_1 with DVRB Resource Block 1; Continuous

DVRB Resource Block

2,3,4 is distributed to UE_2, and continuous

DVRB Resource Block

5,6 is distributed to UE_3, and DVRB Resource Block 7 is distributed to UE_4; Continuous

DVRB Resource Block

8,9 is distributed to UE_5, and DVRB Resource Block 10 is distributed to UE_6.

To above-mentioned 6 distributing users that are dispatched to, according to the order that takies the DVRB Resource Block separately, arrange UE ID then, then UE ID is UE_1, UE_2, UE_3, UE_4, UE_5, UE_6 in proper order.

Step 103 is according to the distribution generation DVRB indication signaling of DVRB Resource Block;

According to above-mentioned DVRB resource allocation methods, the UE ID that is dispatched to according to its DVRB sequence arrangement that takies, and is produced indication signaling.

Then distribute the indication signaling production method to do accordingly, produce first UE of indication and take the signaling that DVRB original position and all UE take DVRB length.Be denoted as 0 DVRB if first UE takies all the time, then do not produce the information that first UE of indication takies the original position of DVRB, only produce the signaling that each UE of indication takies DVRB length.

Describe through following analysis, but the knowledge capital preferred embodiments can reduce signaling consumption, as to establish the DVRB Resource Block be N that the UE number is K, in the prior art, each UE user is sent a bit diagram indication, and it uses the DVRB situation, then needs KN signaling bit altogether.And in this preferred embodiments, always from the 0th DVRB Resources allocation, each user's length needs log ₂N, then total signaling consumption is Klog ₂N bit obviously practiced thrift KN-Klog ₂N signaling bit.

Can also improve said method, reducing signaling consumption, take the signaling that DVRB original position and all UE take DVRB length producing first UE of indication; If or first UE takies all the time and is denoted as 0 DVRB; Then do not produce the information that first UE of indication takies the original position of DVRB; Only produce under two kinds of situation of the signaling of indicating each UE to take DVRB length, all can be to first CU DVRB starting position and length L ₁After the indication, the Length Indication of second CU DVRB is only needed log ₂(N-L ₁) bit, by that analogy, the Length Indication of i CU DVRB only needs

Bit, L _jBe the length of j CU DVRB resource, signaling consumption can further reduce like this.

Step 104 is with DVRB indication signaling combined coding and transmission;

DVRB resource indication signaling to each UE carries out combined coding, sends first UE and takies the original position of DVRB and the length that all UE take DVRB.Be denoted as 0 DVRB if first UE takies all the time, then need not indicate first UE to take the original position of DVRB, only need each UE of indication to take the length of DVRB, promptly send the indication that each UE takies the length of DVRB.

Step 105, UE receives and demodulation indication signaling information, obtains the situation of oneself using DVRB;

UE receives indication signaling; And demodulate all indication signaling information; This UE is according to its oneself UE ID and take the DVRB resource size, can obtain original position and the end position of own shared DVRB, can obtain the resource of oneself distribution then to the mapping relations of PRB according to DVRB.

Step 106, UE obtains the physical resource situation that takies of oneself according to DVRB operating position of oneself and the corresponding mapping relations between DVRB and the PRB.

As follows, the resource allocation methods and the concrete course of work of indicating means for preferable second execution mode of the present invention mainly comprise the steps.

Step 201 is accomplished mapping with certain rule between DVRB and the PRB;

DVRB of this preferable second execution mode and the mapping method that the mapping method between the PRB can adopt above-mentioned preferable first execution mode repeat no more at this.

Step 202 to the distributing UE that is dispatched to, is given above-mentioned user according to the continuous DVRB resource of the descending order assignment of CU DVRB resource block length, takies order according to DVRB then, arranges UE ID;

Suppose that the whole system transmission bandwidth is divided into N

DVRB Resource Block

As shown in Figure 5; If the whole system transmission bandwidth is divided into 10 DVRB Resource Block:

DVRB Resource Block

When then 10 continuous DVRB Resource Block being distributed to 6 above-mentioned users in order; According to CU DVRB resource block length; Order is from big to small distributed to each user successively with continuous DVRB Resource Block, and promptly after the DVRB resource block assignments, the order of each DVRB Resource Block should still be continuous; Guarantee again to take the maximum user of resource since the 0th DVRB Resource Block, and the like.As shown in Figure 5; Its distribution method specifically can be for distributing to UE_2 with continuous

DVRB Resource Block

1,2,3; Continuous

DVRB Resource Block

4,5 is distributed to UE_3, and continuous

DVRB Resource Block

6,7 is distributed to UE_5, and DVRB Resource Block 8 is distributed to UE_1; DVRB Resource Block 9 is distributed to UE_4, and DVRB Resource Block 10 is distributed to UE_6.

To above-mentioned 6 distributing users that are dispatched to, according to the order that takies the DVRB Resource Block separately, arrange UE ID then, then UE ID is UE_2, UE_3, UE_5, UE_1, UE_4, UE_6 in proper order.

Therefore, the Resource Block that concentration of transmissions is distributed to UE is that frequency domain is continuous, and the Resource Block that disperses transmission to distribute to UE also is continuous according to predefined order.

Step 203 is according to the distribution generation DVRB indication signaling of DVRB Resource Block;

This step 203 can adopt the indicating means of the step 103 of preferable first execution mode, and then follow-up step can adopt the follow-up step of the step 103 of preferable first execution mode.

But the resource distribution mode of this execution mode is a kind of special method of salary distribution of preferable first execution mode, so can also adopt other a kind of indicating means, mainly is described below.

In step 202, because when distributing the DVRB resource, be that the length descending order according to CU DVRB distributes, take the maximum user of resource since the 0th DVRB resource, UE ID carries out corresponding sequencing.

So distribute the indication signaling production method to do accordingly, only produce the signaling that all UE of indication take DVRB length.

Take the signaling that DVRB original position and all UE take DVRB length producing first UE of indication; Or only produce under two kinds of situation of the signaling of indicating each UE to take DVRB length, all can indicate it to take DVRB length to first user needs log ₂The N bit, establishing its resource size that takies DVRB is L ₁, then indicate the length of second CU DVRB only to need log ₂[min (L ₁, N-L ₁) bit, wherein (a, b) for getting the function of smaller value between a, b, by that analogy, the Length Indication of i CU DVRB only needs min

Bit, L _jBe the length of j CU DVRB resource, so signaling consumption can further reduce like this.

According to resource allocation conditions shown in Figure 5, can obtain indication information as stated above and be: 0010011000.To UE2, it takies the DVRB number of resources by preceding 4 bits " 0010 " indication, is 3 so it takies number of resources; To UE3, it takies the DVRB number of resources and is not more than number of resources that previous user UE2 takies and the smaller between the surplus resources number, is 3 in this execution mode, by the indication of 2 bits " 01 " behind the UE2, is 2 so it takies the DVRB number of resources; By that analogy, to UE5, it takies 1 bit " 1 " indication of DVRB number of resources after by UE3, is 2 so it takies number of resources; For UE1, it takies 1 bit " 0 " indication of DVRB number of resources after by UE5, is 1 so it takies number of resources; For UE4, it takies 1 bit " 0 " indication of DVRB number of resources after by UE1, is 1 so it takies number of resources; For UE6, it takies 1 bit " 0 " indication of DVRB number of resources after by UE4, is 1 so it takies number of resources.

Further, be 1 user for taking resource size, can indicate, for resource allocation conditions shown in Figure 5, its resource allocation indication information is: 0010011.

Step 204 is with also sending behind the DVRB indication signaling combined coding;

Step 205, UE receives and demodulation indication signaling information, obtains the situation of oneself using DVRB;

UE receives above-mentioned indication signaling, demodulates all signaling informations, according to ID and the signaling Indication message of oneself, can confirm the starting and ending position of own shared DVRB Resource Block, obtains the situation of oneself using DVRB;

Being specially UE receives and the above-mentioned indication signaling of demodulation; Each UE takies resource size according to its own UE ID and all UE; Original position and the end position of own shared DVRB can be obtained, the resource of oneself distribution can be obtained then according to DVRB to the mapping of PRB.

Further, if be 1 user, do not indicate for taking resource size; Then after the UE demodulation signaling; Total UE ID number is deducted the UE number that indexed resource distributes, promptly get the UE number of indexed resource not (equal to take resource size be 1 UE number), combine other CU number of resources and total resources N again; Begin from the next position of the end position of signaling indexed resource; Each not the UE that distributes of indexed resource put in order according to its ID, take a Resource Block successively, each UE obtains the Resource Block situation that takies of oneself like this.

Step 206, UE obtains the physical resource situation that takies of oneself according to DVRB operating position of oneself and the corresponding mapping relations between DVRB and the PRB.

But above-mentionedly be merely preferred embodiments of the present invention; Be not to be used to limit protection scope of the present invention; Any technical staff who is familiar with the present technique field will be appreciated that; All within spirit of the present invention and principle scope, any modification of being done, equivalence replacement, improvement etc. all should be included within the rights protection scope of the present invention.

Claims

1. a method for distributing system resource is characterized in that, comprising:

Step B, to the distributing user UE that is dispatched to, the length descending order that goes out according to CU DVI distributes continuous DVRB resource;

Take order according to DVRB, arrange UE ID;

Produce the DVRB indication signaling, indicate first UE to take the original position of DVRB and the length that all UE take DVRB.

2. a kind of method for distributing system resource as claimed in claim 1 is characterized in that: behind the step B, also comprise the DVRB indication signaling is carried out sending to UE behind the combined coding.

3. the indicating means of a kind of system resource allocation as claimed in claim 1, it is characterized in that: be denoted as 0 DVIRB if first UE takies all the time, said DVRB indication signaling only indicates each UE to take the length of DVRB.

4. the indicating means of a kind of system resource allocation as claimed in claim 1; It is characterized in that: if the DVRB Resource Block is N; The UE number is K; Wherein N, K are the integer greater than 1, after first CU DVRB starting position and length L 1 indication, to the Length Indication distribution log of second CU DVRB ₂(N-L ₁) bit, by that analogy, the Length Indication of i CU DVRB distributes

Bit, L _jBe the length of j CU DVRB resource.

5. the indicating means of a system resource allocation is characterized in that, comprising:

Take order according to DVRB, arrange UE ID;

Step B produces the DVRB indication signaling according to distribution condition, and the original position of indicating first UE to take DVRB takies DVRB length with all UE.

6. the indicating means of a kind of system resource allocation as claimed in claim 5 is characterized in that: be 1 user for taking resource size among the said step B, do not indicate.

7. the indicating means of a kind of system resource allocation as claimed in claim 5, it is characterized in that: be denoted as 0 DVRB if first UE takies all the time, then said DVRB indication signaling only indicates each UE to take the length of DVRB.

8. like the indicating means of claim 5 or 7 each described a kind of system resource allocation; It is characterized in that: if the DVRB Resource Block is N; The UE number is K; Wherein N, K are the integer greater than 1, after first CU DVRB starting position and length L 1 indication, to the Length Indication distribution log of second CU DVRB ₂(N-L ₁) bit, by that analogy, the Length Indication of i CU DVRB distributes

Bit, L _jBe the length of j CU DVRB resource.

9. like the indicating means of claim 5 or 7 each described a kind of system resource allocation, it is characterized in that: if the DVRB Resource Block is N, the UE number is K, and wherein N, K are the integer greater than 1, and to first user's indication signaling, it takies DVRB length is log ₂The N bit, establishing its resource size that takies DVRB is L ₁, then the Length Indication of second CU DVRB is log ₂[min (L ₁, N-L ₁)] bit, wherein (a, b) for getting the function of smaller value between a, b, by that analogy, the Length Indication of i CU DVRB does min

Bit, L _jBe the length of j CU DVRB resource.