CN102215571B - Method and device for allocating resources for physical hybrid automatic repeat request indicator channel - Google Patents

Abstract

The invention provides a method and a device for allocating resources for a physical hybrid automatic repeat request indicator channel. The method comprises the following steps of: acquiring a physical resource block number offset corresponding to a minimum physical resource block number according to a group number, a sequence number, the number of a plurality of component carriers and the number of first component carriers, and acquiring a first group number and a first orthogonal sequence number according to the group number, the sequence number, the physical resource block number offset, the minimum physical resource block number and a first demodulation reference signal cycle offset. Because the physical resource block number offset is related to the number of the first component carriers, the physical resource block number offset corresponds to different component carriers, even if the minimum physical resource block number is the same, corresponding physical resource block number offsets are different, and a group number and an orthogonal sequence number of the corresponding resource allocation result can be different. In the mode, when total resources to be allocated are enough, the resource allocation conflict of different component carriers due to the same minimum physical resource block number can be avoided.

Description

For method and the device of physical hybrid automatic repeat request indicator channel Resources allocation

Technical field

The resource that the application relates in wireless communication system is distributed, and relates in particular to method and device into physical hybrid automatic repeat request indicator channel Resources allocation.

Background technology

LTE-Advanced (Long Term Evolution system-Advanced) mobile communication system will be supported the higher spectral bandwidth than LTE Rel-8 (Release 8), these frequency spectrums may be dispersed in a lot of scattered passages, these frequency spectrums need to be gathered to use.Carrier aggregation technology can address this problem, and system can be according to the practical capacity of oneself simultaneously in the upper transmission of multiple component carriers (component carrier) or reception data.About the application of carrier aggregation technology, reach following common recognition, support symmetrical and asymmetrical carrier aggregation; And, from user's angle, corresponding a transmission block (TB, transport block) and a HARQ (Hybrid Automatic Repeat request, mixed automatic retransfer request) entity on each component carrier (without spatial reuse time).

According to above-mentioned common recognition, in carrier aggregation system, Physical Uplink Shared Channel (the PUSCH existing on multiple upstream components carrier waves as user, Physical Uplink SharedCHannel) when transmission, downlink component carrier need to transmit multiple ACK/NACK (positive acknowledgement/Negative Acknowledgement) signal.Under symmetrical carrier aggregation scene, downlink component carrier and upstream components carrier wave can keep one-to-one relationship, as shown in Figure 1.Now can directly expand physical hybrid automatic repeat request indicator channel (PHICH, the Physical HARQindicator CHannel) design of Rel-8, on each downlink component carrier, transmit the ack/nack signal of corresponding upstream components carrier wave.But, under asymmetric carrier aggregation scene, as shown in Figure 2 a and 2 b, downlink component carrier and upstream components carrier wave no longer have one-to-one relationship, can not directly apply the design of Rel-8, especially in the time that upstream components carrier number is greater than downlink component carrier number, a downlink component carrier must be supported the ack/nack signal transmission of multiple upstream components carrier waves.In addition, on single downlink component carrier, transmit the ack/nack signal of multiple upstream components carrier waves, can also meet the requirement of different bandwidth class user, can effectively support the interference coordination in heterogeneous network (Heterogeneous Network).

In the design of LTE Rel-8, the ACK/NACK bit that user uplink PUSCH is corresponding is transmitted by PHICH after BPSK repeated encoding.Multiple PHICH are mapped on identical physics running time-frequency resource, form a PHICH group, between the PHICH on the same group, make a distinction by orthogonal Walsh sequence extension again.The resource that PHICH occupies is by two parameter (n _pHICH ^group, n _pHICH ^seq) represent n _pHICH ^grouprepresent PHICH group #, n _pHICH ^seqorthogonal sequence numbering in expression group.For fdd mode, PHICH group number N _pHICH ^groupfixing in all subframes, by downlink bandwidth N _rB ^dLn with high level outfit _gdetermine.

Minimum PRB (Physical Resource Block, Physical Resource Block) the numbering I of first time slot (slot) that PHICH resource is transmitted by PUSCH _{pRB_RA} ^lowest_indexuplink demodulation reference signal (DM RS, Demodulation Reference Signal) circulation skew n with 3 bits _dMRSassociating decision.For subscriber terminal equipment, I _{pRB_RA} ^lowest_indexand n _dMRSall instructions in DCI (DownlinkControl Information, Downlink Control Information) format 0, the PHICH group # n that PHICH resource is occupied _pHICH ^groupwith orthogonal sequence numbering n _pHICH ^seqbe expressed as:

$n_{\mathrm{PHICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{lowest}\_\mathrm{index}}+n_{\mathrm{DMRS}})\mathrm{mod}{N}_{\mathrm{PHICH}}^{\mathrm{group}}+I_{\mathrm{PHICH}}{N}_{\mathrm{PHICH}}^{\mathrm{group}}$ Formula 1

formula 2

In formula 1 and 2, N _sF ^pHICHfor the sequence spreading size using in signal processing, for FDD (Frequency Division Duplex, Frequency Division Duplexing (FDD)) pattern, I _pHICHbe 0.

Summary of the invention

The present inventor recognizes, if the method that adopts the PHICH resource of LTE Rel-8 definition to distribute in carrier aggregation system, different upstream components carrier waves can have identical minimum PRB numbering, can be assigned to identical resource corresponding to the PHICH of different upstream components carrier waves, thereby cause resource contention.

Based on the understanding to background technology and the problems referred to above, if the conflict that can provide a kind of resource allocation methods to reduce the resource being assigned with corresponding to the PHICH of different upstream components carrier waves will be very important as far as possible.

In order better to solve above-mentioned considering, an embodiment according to a first aspect of the invention, provides a kind of method that is used to a physical hybrid automatic repeat request indicator channel Resources allocation in a network equipment.This network equipment is provided with receive channel on multiple component carriers, and this physical hybrid automatic repeat request indicator channel is a business datum transmitting channel on first component carrier in described multiple component carriers corresponding to a subscriber terminal equipment.The method comprises the following steps:

A. obtain a group number, its expression can be used for the number of the multiple running time-frequency resources that distribute;

B. obtain a sequence number, it represents the number of the corresponding multiple orthogonal sequences of each running time-frequency resource;

C. obtain a minimal physical Resource Block numbering at described business datum transmitting channel;

D. a numbering of number and described the first component carrier by described group of number, described sequence number, described multiple component carriers, obtains a physical resource block number skew corresponding to described minimal physical Resource Block numbering;

E. obtain a first demodulated reference signal circulation skew; And

F. by described group of number, described sequence number, the skew of described physical resource block number, described minimal physical Resource Block numbering and described the first demodulated reference signal circulation skew, obtain first group # and a first orthogonal sequence numbering, described the first group # is used to indicate first running time-frequency resource in described multiple running time-frequency resources, and described the first orthogonal sequence numbering is used to indicate corresponding to first orthogonal sequence in multiple orthogonal sequences of this running time-frequency resource.

Because the skew of physical resource block number is relevant to the numbering of the first component carrier, corresponding to different component carriers, even if least resource block number is identical, due to the numbering difference of respective component carrier wave, corresponding physical resource block number skew is also just different, and the group # of corresponding resource allocation result and orthogonal sequence numbering also just may be different.In this way, in the time that distributable total resources number is abundant, just can avoid different component carriers due to the identical resource allocation conflict causing of minimal physical Resource Block numbering; Even if distributable total resources number is limited, also can reduce the resource allocation conflict due to the identical different component carriers that cause of minimal physical Resource Block numbering as far as possible.

An embodiment according to a second aspect of the invention, provide a kind of in a subscriber terminal equipment for determining the method for resource of the physical hybrid automatic repeat request indicator channel that network equipment sends.This network equipment is provided with receive channel on multiple component carriers, and this physical hybrid automatic repeat request indicator channel is a business datum transmitting channel on first component carrier in described multiple component carriers corresponding to a subscriber terminal equipment.The method comprises the following steps:

A. obtain a group number, its expression can be used for the number of the multiple running time-frequency resources that distribute;

B. obtain a sequence number, it represents the number of the corresponding multiple orthogonal sequences of each running time-frequency resource;

C. obtain a minimal physical Resource Block numbering at described business datum transmitting channel;

D. a numbering of number and described the first component carrier by described group of number, described sequence number, described multiple component carriers, obtains a physical resource block number skew corresponding to described minimal physical Resource Block numbering;

E. obtain a first demodulated reference signal circulation skew; And

F. by described group of number, described sequence number, the skew of described physical resource block number, described minimal physical Resource Block numbering and described the first demodulated reference signal circulation skew, obtain first group # and a first orthogonal sequence numbering, described the first group # is used to indicate first running time-frequency resource in described multiple running time-frequency resources, and described the first orthogonal sequence numbering is used to indicate corresponding to first orthogonal sequence in multiple orthogonal sequences of this running time-frequency resource.

An embodiment according to a third aspect of the invention we, provides a kind of resource allocation device that is used to a physical hybrid automatic repeat request indicator channel Resources allocation in a network equipment.This network equipment is provided with receive channel on multiple component carriers, and this physical hybrid automatic repeat request indicator channel is a business datum transmitting channel on first component carrier in described multiple component carriers corresponding to a subscriber terminal equipment.This resource allocation device comprises:

An acquisition device, its for

-obtain a group number, its expression can be used for the number of the multiple running time-frequency resources that distribute;

-obtaining a sequence number, it represents the number of the corresponding multiple orthogonal sequences of each running time-frequency resource;

-obtain at a minimal physical Resource Block of described business datum transmitting channel and number; And

-obtain a first demodulated reference signal circulation to be offset;

A processor, its for

A numbering of-number and described the first component carrier by described group of number, described sequence number, described multiple component carriers, obtains a physical resource block number skew corresponding to described minimal physical Resource Block numbering; And

-by described group of number, described sequence number, the skew of described physical resource block number, described minimal physical Resource Block numbering and described the first demodulated reference signal circulation skew, obtain first group # and a first orthogonal sequence numbering, described the first group # is used to indicate first running time-frequency resource in described multiple running time-frequency resources, and described the first orthogonal sequence numbering is used to indicate corresponding to first orthogonal sequence in multiple orthogonal sequences of this running time-frequency resource.

An embodiment according to a forth aspect of the invention, a kind of resource determining device of resource used of the physical hybrid automatic repeat request indicator channel sending for definite network equipment in a subscriber terminal equipment is provided, this network equipment is provided with receive channel on multiple component carriers, this physical hybrid automatic repeat request indicator channel is a business datum transmitting channel on first component carrier in described multiple component carriers corresponding to a subscriber terminal equipment, and this resource determining device comprises:

An acquisition device, its for

-obtain a group number, its expression can be used for the number of the multiple running time-frequency resources that distribute;

-obtaining a sequence number, it represents the number of the corresponding multiple orthogonal sequences of each running time-frequency resource;

-obtain at a minimal physical Resource Block of described business datum transmitting channel and number; And

-obtain a first demodulated reference signal circulation to be offset;

A processor, its for

A numbering of-number and described the first component carrier by described group of number, described sequence number, described multiple component carriers, obtains a physical resource block number skew corresponding to described minimal physical Resource Block numbering; And

-by described group of number, described sequence number, the skew of described physical resource block number, described minimal physical Resource Block numbering and described the first demodulated reference signal circulation skew, obtain first group # and a first orthogonal sequence numbering, described the first group # is used to indicate first running time-frequency resource in described multiple running time-frequency resources, and described the first orthogonal sequence numbering is used to indicate corresponding to first orthogonal sequence in multiple orthogonal sequences of this running time-frequency resource.

Various aspects of the present invention are by the explanation of the specific embodiment by hereinafter and more clear.

Brief description of the drawings

By reading the detailed description that non-limiting example is done of doing with reference to the following drawings, above-mentioned and other feature of the present invention will become more apparent:

Fig. 1 is the schematic diagram of symmetrical carrier aggregation scene;

The schematic diagram that Fig. 2 a and Fig. 2 b are asymmetrical carrier aggregation scene;

Fig. 3 is the flow chart of the method that is used to physical hybrid automatic repeat request indicator channel Resources allocation in the network equipment according to an embodiment of the invention;

Fig. 4 is the schematic diagram of the result that is used to physical hybrid automatic repeat request indicator channel Resources allocation in the network equipment according to an embodiment of the invention;

Fig. 5 is the flow chart of the method that is used to physical hybrid automatic repeat request indicator channel Resources allocation in the network equipment according to still another embodiment of the invention;

Fig. 6 is the flow chart of the method for the resource of the physical hybrid automatic repeat request indicator channel sending for definite network equipment in subscriber terminal equipment according to an embodiment of the invention;

Fig. 7 is the schematic diagram of the resource allocation device that is used to physical hybrid automatic repeat request indicator channel Resources allocation in the network equipment according to an embodiment of the invention; And

Fig. 8 is the schematic diagram of the resource determining device of the resource used of the physical hybrid automatic repeat request indicator channel sending for definite network equipment in subscriber terminal equipment according to an embodiment of the invention.

Embodiment

Below in conjunction with accompanying drawing, the present invention is described in further detail.

Fig. 3 is the flow chart of the method that is used to physical hybrid automatic repeat request indicator channel Resources allocation in the network equipment according to an embodiment of the invention.

According to first aspect present invention embodiment, provide a kind of method that is used to a physical hybrid automatic repeat request indicator channel Resources allocation in a network equipment.The network equipment is provided with receive channel on multiple component carriers.Physical hybrid automatic repeat request indicator channel is a business datum transmitting channel on first component carrier in multiple component carriers corresponding to a subscriber terminal equipment.The network equipment can be realized in several ways, such as base station or relay station etc.The network equipment comes to send the ack/nack signal corresponding to business datum transmitting channel (as PUSCH) to subscriber terminal equipment by physical hybrid automatic repeat request indicator channel (as PHICH).

With reference to Fig. 3, the method comprising the steps of 310, and the network equipment obtains a group number, and its expression can be used for the number of the multiple running time-frequency resources that distribute.Each running time-frequency resource is identified by time domain and frequency domain resource, and for example a running time-frequency resource is 16 Resource Block (RB, ResourceBlock), wherein 1 RB can corresponding to time 1 time slot of length of field and frequency domain width 180kHz.The network equipment can obtain group number in several ways, for example, from directly reception group of high level number.And for example, receive the parameter relevant to group number from high level, then calculate group number by the parameter relevant to group number.

The method also comprises step 320, and the network equipment obtains a sequence number, and it represents the number of the corresponding multiple orthogonal sequences of each running time-frequency resource.The network equipment can obtain sequence number in several ways, for example, from directly reception group of high level number.And for example, the spreading factor size that receives orthogonal sequence from high level is (as the N of table 1 _sF ^pHICH), then carry out sequence of calculation number (if sequence number is N by the size of spreading factor _sF ^pHICH2 times).

Table 1

The method also comprises step 330, and the network equipment obtains a minimal physical Resource Block numbering at business datum transmitting channel.Minimal physical Resource Block is numbered the minimum physical resource block number on first time period (as first time slot) that can be business datum transmitting channel.

The method also comprises step 340, and the network equipment, by group number, sequence number, the number of multiple component carriers and a numbering of the first component carrier, obtains a physical resource block number skew corresponding to minimal physical Resource Block numbering.

The network equipment can obtain the skew of physical resource block number in several ways.

In one embodiment, the network equipment can obtain the skew of physical resource block number by formula 3.

$I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{Lowest}\_\mathrm{index}\_\mathrm{offset}}=\frac{J_{\mathrm{CC}}\·2N_{\mathrm{SF}}^{\mathrm{PHICH}}\·N_{\mathrm{PHICH}}^{\mathrm{group}}}{M}$ Formula 3

In formula 3, I _{pRB_RA} ^{lowest_index_offset}for the skew of physical resource block number, the number that M is multiple component carriers, J _cCbe the numbering (0≤J of the first component carrier _cC≤ M-1), N _pHICH ^groupfor group number; 2N _sF ^pHICHfor sequence number, N _sF ^pHICHfor the size of the spreading factor of each sequence.In formula 3, multiple component carriers are to be numbered according to the number of multiple component carriers.

In yet another embodiment, the network equipment can obtain the skew of physical resource block number by formula 4.

$I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{Lowest}\_\mathrm{index}\_\mathrm{offset}}=\frac{\left(J_{\mathrm{CC}}\mathrm{mod}M\right)\·2N_{\mathrm{SF}}^{\mathrm{PHICH}}\·N_{\mathrm{PHICH}}^{\mathrm{group}}}{M}$ Formula 4

In formula 4, I _{pRB_RA} ^{lowest_index_offset}for the skew of physical resource block number, the number that M is multiple component carriers, J _cCbe the numbering of the first component carrier, N _pHICH ^groupfor group number; 2N _sF ^pHICHfor sequence number, N _sF ^pHICHfor the size of the spreading factor of each sequence.In formula 4, the numbering of multiple component carriers is not limited, as long as no identical numbering.

In above-mentioned two embodiment, for different component carriers, the numbering of respective component carrier wave is also different, and therefore, corresponding physical resource block number skew is also different.

The method also comprises step 350, and the network equipment obtains a first demodulated reference signal circulation skew.The network equipment can obtain the first demodulated reference signal circulation skew in several ways.For example, the network equipment receives the first demodulated reference signal circulation skew from high level.And for example, the network equipment is according to a predetermined demodulated reference signal circulation skew form, and random selection the first demodulated reference signal circulation is offset.For another example, the network equipment is according to adjust the first demodulated reference signal circulation skew for the allocation result of physical hybrid automatic repeat request indicator channel Resources allocation, to avoid the situation of resource allocation conflict.

The method also comprises step 360, and the network equipment, by group number, sequence number, the skew of physical resource block number, minimal physical Resource Block numbering and the first demodulated reference signal circulation skew, obtains first group # and a first orthogonal sequence numbering.The first group # is used to indicate first running time-frequency resource in multiple running time-frequency resources, and the first orthogonal sequence numbering is used to indicate corresponding to first orthogonal sequence in multiple orthogonal sequences of this running time-frequency resource.

The network equipment can obtain the first group # and the first orthogonal sequence numbering in several ways.

In one embodiment, the network equipment obtains the first group # and the first orthogonal sequence numbering by formula 5 and formula 6.

$n_{\mathrm{PHICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{lowest}\_\mathrm{index}}+I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{Lowest}\_\mathrm{index}\_\mathrm{offset}}+n_{\mathrm{DMRS}})\mathrm{mod}(N_{\mathrm{PHICH}}^{\mathrm{group}}/2)+$

formula 5

formula 6

In formula 5 and formula 6, n _pHICH ^groupbe the first group #, n _pHICH ^seqit is the first orthogonal sequence numbering; I _{pRB_RA} ^{lowest_index_offset}for the skew of physical resource block number; N _pHICH ^groupfor group number; 2N _sF ^pHICHfor sequence number, N _sF ^pHICHfor the size of the spreading factor of each sequence; I _{pRB_RA} ^lowest_indexfor minimal physical Resource Block numbering; And n _dMRSit is the first demodulated reference signal circulation skew.

By formula 5, the resource that the network equipment distributes for physical hybrid automatic repeat request indicator channel is first in the first half of multiple running time-frequency resources, to carry out, and then in the later half of multiple running time-frequency resources, carries out.

Optionally, the network equipment obtains the first group # and the first orthogonal sequence numbering by formula 5, formula 6 and formula 7.

$I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{Lowest}\_\mathrm{index}\_\mathrm{offset}}=\frac{J_{\mathrm{CC}}\·2N_{\mathrm{SF}}^{\mathrm{PHICH}}\·m_j\·(N_{\mathrm{PHICH}}^{\mathrm{group}}/2)}{M}$ Formula 7

The network equipment is from the high level m that gets parms _jand N _pHICH ^group/ 2, work as m _j=1 o'clock, corresponding to the asymmetric situation of up-downgoing carrier wave, the resource of distributing for physical hybrid automatic repeat request indicator channel was at N _pHICH ^groupin/2 running time-frequency resources, carry out, work as m _j=2 o'clock, corresponding to the situation of up-downgoing carrier wave symmetry, the resource of distributing for physical hybrid automatic repeat request indicator channel was at N _pHICH ^groupin individual running time-frequency resource, carry out.Therefore, can realize the resource distribution in up-downgoing carrier wave symmetry and asymmetric situation with same group of formula, thereby simplify the design of system, simplify the control signal of system, thereby improved the efficiency of system.

In yet another embodiment, the network equipment obtains the first group # and the first orthogonal sequence numbering by formula 8 and formula 9.

$n_{\mathrm{PHICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{lowest}\_\mathrm{index}}+I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{Lowest}\_\mathrm{index}\_\mathrm{offset}}+n_{\mathrm{DMRS}})\mathrm{mod}\left(N_{\mathrm{PHICH}}^{\mathrm{group}}\right)$ Formula 8

formula 9

In formula 8 and formula 9, n _pHICH ^groupit is the first group #; n _pHICH ^seqit is the first orthogonal sequence numbering; I _{pRB_RA} ^{lowest_index_offset}for the skew of physical resource block number; N _pHICH ^groupfor group number; 2N _sF ^pHICHfor sequence number, N _sF ^pHICHfor the size of the spreading factor of each sequence; I _{pRB_RA} ^lowest_indexfor minimal physical Resource Block numbering; And n _dMRSit is the first demodulated reference signal circulation skew.

In above-mentioned multiple formula, AmodB represents to ask the computing of mould, calculates the remainder of A divided by B, represent to round downwards.

In the above-described embodiments, because the skew of physical resource block number is relevant to the numbering of the first component carrier, corresponding to different component carriers, even if least resource block number is identical, due to the numbering difference of respective component carrier wave, corresponding physical resource block number skew is also just different, and the group # of corresponding resource allocation result and orthogonal sequence numbering also just may be different.In this way, in the time that distributable total resources number is abundant, just can avoid different component carriers due to the identical resource allocation conflict causing of minimal physical Resource Block numbering; Even if distributable total resources number is limited, also can reduce the resource allocation conflict due to the identical different component carriers that cause of minimal physical Resource Block numbering as far as possible.

Fig. 4 is the schematic diagram of the result that is used to physical hybrid automatic repeat request indicator channel Resources allocation in the network equipment according to an embodiment of the invention.

With reference to Fig. 4, the number of multiple running time-frequency resources is 8, and the network equipment is provided with receive channel on 4 component carriers, the numbering of component carrier from 0 to 4.For the PUSCH on No. 0 component carrier, minimal physical Resource Block is numbered 1, and demodulated reference signal circulation skew is 2; For the PUSCH on No. 1 component carrier, minimal physical Resource Block is numbered 2, and demodulated reference signal circulation skew is 2; For the PUSCH on No. 2 component carriers, minimal physical Resource Block is numbered 1, and demodulated reference signal circulation skew is 2; For the PUSCH on No. 3 component carriers, minimal physical Resource Block is numbered 2, and demodulated reference signal circulation skew is 2.By formula 3, formula 5 and formula 6, can draw, the PUSCH on corresponding No. 0 component carrier, the group # of the PHICH resource of distributing is 3, orthogonal sequence is numbered 2, i.e. resource 11 in Fig. 4; PUSCH on corresponding No. 1 component carrier, the group # of the PHICH resource of distributing is 0, orthogonal sequence is numbered 6, i.e. resource 24 in Fig. 4; PUSCH on corresponding No. 2 component carriers, the group # of the PHICH resource of distributing is 7, orthogonal sequence is numbered 2, i.e. resource 43 in Fig. 4; PUSCH on corresponding No. 3 component carriers, the group # of the PHICH resource of distributing is 4, orthogonal sequence is numbered 6, i.e. resource 56 in Fig. 4.For the PUSCH on different component carriers, even if minimal physical Resource Block is numbered, also can not there is the situation of resource contention.

Fig. 5 is the flow chart of the method that is used to physical hybrid automatic repeat request indicator channel Resources allocation in the network equipment according to still another embodiment of the invention.

With reference to Fig. 5, after step 310, the method also comprises step 510, and the network equipment determines that the first group # and the first orthogonal sequence number the resource whether indicated resource distributed with the network equipment and conflict mutually.The resource that the network equipment has distributed is the resource that the corresponding physical hybrid automatic repeat request indicator channel of business datum transmitting channel on the network equipment other component carriers that are this subscriber terminal equipment distributes, or the resource of distributing for the corresponding physical hybrid automatic repeat request indicator channel of business datum transmitting channel of other subscriber terminal equipments.Resource is conflicted mutually, and to be the resource of distributing corresponding to the corresponding physical hybrid automatic repeat request indicator channel of different business data transmitting channel identical.

If there is conflict, the method also comprises step 520, and the network equipment obtains a second demodulated reference signal circulation skew; And step 530, the network equipment, by group number, sequence number, the skew of physical resource block number, minimal physical Resource Block numbering and the second demodulated reference signal circulation skew, obtains second group # and a second orthogonal sequence numbering.The second group # is used to indicate second running time-frequency resource in multiple running time-frequency resources, and the second orthogonal sequence numbering is used to indicate corresponding to second orthogonal sequence in multiple orthogonal sequences of this running time-frequency resource.

In step 520, the network equipment can obtain the second demodulated reference signal circulation skew that is different from the first demodulated reference signal circulation skew in several ways.For example, the network equipment receives the second demodulated reference signal circulation skew from high level.And for example, the network equipment is according to a predetermined demodulated reference signal circulation skew form, and random selection the second demodulated reference signal circulation is offset.

In step 530, the network equipment can obtain the second group # and the second orthogonal sequence numbering in several ways.For example, by formula 5,6 or by formula 8,9, wherein, n _pHICH ^groupbe the second group #, n _pHICH ^seqbe the second orthogonal sequence numbering, the implication of other parameters is constant.

In this way, just can reduce the even problem of solving resource distribution conflict.

Fig. 6 is the flow chart of the method for the resource of the physical hybrid automatic repeat request indicator channel sending for definite network equipment in subscriber terminal equipment according to an embodiment of the invention.

An embodiment according to a second aspect of the invention, provide a kind of in a subscriber terminal equipment for determining the method for resource of the physical hybrid automatic repeat request indicator channel that network equipment sends.This network equipment is provided with receive channel on multiple component carriers.This physical hybrid automatic repeat request indicator channel is a business datum transmitting channel on first component carrier in multiple component carriers corresponding to a subscriber terminal equipment.Subscriber terminal equipment can be realized in several ways, such as mobile phone, notebook computer etc.

With reference to Fig. 6, the method comprising the steps of 610, and subscriber terminal equipment obtains a group number, and its expression can be used for the number of the multiple running time-frequency resources that distribute.User terminal can obtain group number in several ways, for example, receives or receive from the network equipment parameter of instruction group number from the network equipment.

The method also comprises step 620, and subscriber terminal equipment obtains a sequence number, and it represents the number of the corresponding multiple orthogonal sequences of each running time-frequency resource.User terminal can obtain sequence number in several ways, and for example, the parameter that receives indicator sequence number from network equipment Receiving Order columns or from the network equipment is (as N _sF ^pHICH).

The method also comprises step 630, and subscriber terminal equipment obtains a minimal physical Resource Block numbering at business datum transmitting channel.Because business datum transmitting channel is that subscriber terminal equipment sends, so subscriber terminal equipment can send after business datum, minimal physical Resource Block numbering is stored in subscriber terminal equipment.

The method also comprises step 640, and subscriber terminal equipment, by group number, sequence number, the number of multiple component carriers and a numbering of the first component carrier, obtains a physical resource block number skew corresponding to described minimal physical Resource Block numbering.Subscriber terminal equipment can obtain the skew of physical resource block number in several ways, for example, and by formula 3 or formula 4.

The method also comprises step 650, and subscriber terminal equipment obtains a first demodulated reference signal circulation skew.Subscriber terminal equipment can obtain the first demodulated reference signal circulation skew n in several ways _dMRS, for example, obtain the first demodulated reference signal circulation skew by the descending control information format 0 shown in table 2 (DCIformat 0).

Table 2

DCI format 0 DMRS circulation skew	n DMRS
		000	0
001	1
		010	2
011	3
		100	4
101	5
		110	6
111	7

The method also comprises step 660, subscriber terminal equipment, by group number, sequence number, the skew of physical resource block number, minimal physical Resource Block numbering and the first demodulated reference signal circulation skew, obtains first group # and a first orthogonal sequence numbering.The first group # is used to indicate first running time-frequency resource in multiple running time-frequency resources, and the first orthogonal sequence numbering is used to indicate corresponding to first orthogonal sequence in multiple orthogonal sequences of this running time-frequency resource.

Subscriber terminal equipment can obtain the first group # and the first orthogonal sequence numbering in several ways.For example,, by formula 5,6 or by formula 8,9.

Fig. 7 is the schematic diagram of the resource allocation device that is used to physical hybrid automatic repeat request indicator channel Resources allocation in the network equipment according to an embodiment of the invention.

An embodiment according to a third aspect of the invention we, provides a kind of resource allocation device that is used to a physical hybrid automatic repeat request indicator channel Resources allocation in a network equipment.This network equipment is provided with receive channel on multiple component carriers, and this physical hybrid automatic repeat request indicator channel is a business datum transmitting channel on first component carrier in multiple component carriers corresponding to a subscriber terminal equipment.

With reference to Fig. 7, resource allocation device 700 comprises an acquisition device 710 and a processor 720.

Acquisition device 710 is for obtaining a group number, and its expression can be used for the number of the multiple running time-frequency resources that distribute.Acquisition device 710 is also for obtaining a sequence number, and it represents the number of the corresponding multiple orthogonal sequences of each running time-frequency resource.Acquisition device 710 is also for obtaining a minimal physical Resource Block numbering at business datum transmitting channel.Acquisition device 710 is also for obtaining a first demodulated reference signal circulation skew.

Processor 720, for by group number, sequence number, the number of multiple component carriers and a numbering of the first component carrier, obtains a physical resource block number skew corresponding to minimal physical Resource Block numbering.Acquisition device 710 can obtain the skew of physical resource block number in several ways, for example, by formula 3 or formula 4.

Processor 720 is also for the skew that circulates by group number, sequence number, the skew of physical resource block number, minimal physical Resource Block numbering and the first demodulated reference signal, obtain first group # and a first orthogonal sequence numbering, the first group # is used to indicate first running time-frequency resource in multiple running time-frequency resources, and the first orthogonal sequence numbering is used to indicate corresponding to first orthogonal sequence in multiple orthogonal sequences of this running time-frequency resource.Processor 720 can obtain the first group # and the first orthogonal sequence numbering in several ways.For example,, by formula 5,6 or by formula 8,9.

Processor 720 is also for determining that the first group # and the first orthogonal sequence number the resource whether indicated resource distributed with the network equipment and conflict mutually.If there is conflict, acquisition device 710 is also for obtaining a second demodulated reference signal circulation skew; And processor 720 is also for the skew that circulates by group number, sequence number, the skew of physical resource block number, minimal physical Resource Block numbering and the second demodulated reference signal, obtain second group # and a second orthogonal sequence numbering, the second group # is used to indicate second running time-frequency resource in multiple running time-frequency resources, and the second orthogonal sequence numbering is used to indicate corresponding to second orthogonal sequence in multiple orthogonal sequences of this running time-frequency resource.Processor 720 can obtain the second group # and the second orthogonal sequence numbering in several ways.For example,, by formula 5,6 or by formula 8,9.

Fig. 8 is the schematic diagram of the resource determining device of the resource used of the physical hybrid automatic repeat request indicator channel sending for definite network equipment in subscriber terminal equipment according to an embodiment of the invention.

An embodiment according to a forth aspect of the invention, provide a kind of in a subscriber terminal equipment for determining the resource determining device of resource used of the physical hybrid automatic repeat request indicator channel that network equipment sends.This network equipment is provided with receive channel on multiple component carriers, and this physical hybrid automatic repeat request indicator channel is a business datum transmitting channel on first component carrier in multiple component carriers corresponding to a subscriber terminal equipment.

With reference to Fig. 8, this resource determining device 800 comprises an acquisition device 810 and a processor 820.

Acquisition device 810 is for obtaining a group number, and its expression can be used for the number of the multiple running time-frequency resources that distribute.Acquisition device 810 is also for obtaining a sequence number, and it represents the number of the corresponding multiple orthogonal sequences of each running time-frequency resource.Acquisition device 810 is also for obtaining a minimal physical Resource Block numbering at business datum transmitting channel.Acquisition device 810 is also for obtaining a first demodulated reference signal circulation skew.

Processor 820, for by group number, sequence number, the number of multiple component carriers and a numbering of the first component carrier, obtains a physical resource block number skew corresponding to minimal physical Resource Block numbering.Acquisition device 810 can obtain the skew of physical resource block number in several ways, for example, by formula 3 or formula 4.

Processor 820 is also for the skew that circulates by group number, sequence number, the skew of physical resource block number, minimal physical Resource Block numbering and the first demodulated reference signal, obtain first group # and a first orthogonal sequence numbering, the first group # is used to indicate first running time-frequency resource in multiple running time-frequency resources, and the first orthogonal sequence numbering is used to indicate corresponding to first orthogonal sequence in multiple orthogonal sequences of this running time-frequency resource.Processor 820 can obtain the first group # and the first orthogonal sequence numbering in several ways.For example,, by formula 5,6 or by formula 8,9.

The various embodiments described above can be applicable in various wireless communication systems, as adopted system or the heterogeneous network etc. of carrier aggregation technology.

To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned example embodiment, and in the situation that not deviating from spirit of the present invention or essential characteristic, can realize the present invention with other concrete form.Therefore, no matter from which point, all should regard embodiment as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, is therefore intended to all changes that drop in the implication and the scope that are equal to important document of claim to include in the present invention.Any Reference numeral in claim should be considered as limiting related claim.In addition, obviously other unit or step do not got rid of in " comprising " word, and odd number is not got rid of plural number.Multiple unit of stating in system claim or device also can be realized by software or hardware by a unit or device.The first, the second word such as grade is used for representing title, and does not represent any specific order.

Claims (6)

1. one kind is used to the method for a physical hybrid automatic repeat request indicator channel Resources allocation in a network equipment, this network equipment is provided with receive channel on multiple component carriers, this physical hybrid automatic repeat request indicator channel is a business datum transmitting channel on first component carrier in described multiple component carriers corresponding to a subscriber terminal equipment, and the method comprises the following steps:

A. obtain a group number, its expression can be used for the number of the multiple running time-frequency resources that distribute;

B. obtain a sequence number, it represents the number of the corresponding multiple orthogonal sequences of each running time-frequency resource;

C. obtain a minimal physical Resource Block numbering at described business datum transmitting channel;

D. a numbering of number and described the first component carrier by described group of number, described sequence number, described multiple component carriers, obtains a physical resource block number skew corresponding to described minimal physical Resource Block numbering; Wherein, described step D realizes by following formula: $I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{Lowest}\_\mathrm{index}\_\mathrm{offset}}=\frac{J_{\mathrm{CC}}\·2N_{\mathrm{SF}}^{\mathrm{PHICH}}\·N_{\mathrm{PHICH}}^{\mathrm{group}}}{M},$ Wherein,

for described physical resource block number skew;

M is the number of described multiple component carriers;

J _cCfor the described numbering of described the first component carrier, and 0≤J _cC≤ M-1;

for described group of number; And

for described sequence number, for the size of the spreading factor of each sequence;

E. obtain a first demodulated reference signal circulation skew; And

F. by described group of number, described sequence number, the skew of described physical resource block number, described minimal physical Resource Block numbering and described the first demodulated reference signal circulation skew, obtain first group # and a first orthogonal sequence numbering, described the first group # is used to indicate first running time-frequency resource in described multiple running time-frequency resources, and described the first orthogonal sequence numbering is used to indicate corresponding to first orthogonal sequence in multiple orthogonal sequences of this running time-frequency resource; Wherein,

Described step F is passed through formula one:

Or formula two:

$n_{\mathrm{PHICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{lowest}\_\mathrm{index}}+I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{Lowest}\_\mathrm{index}\_\mathrm{offset}}+n_{\mathrm{DMRS}})\mathrm{mod}\left(N_{\mathrm{PHICH}}^{\mathrm{group}}\right),$

realize, wherein,

for described the first group #;

for described the first orthogonal sequence numbering;

for described physical resource block number skew;

for described group of number;

for described sequence number, for the size of the spreading factor of each sequence;

for described minimal physical Resource Block numbering; And

N _dMRSfor described the first demodulated reference signal circulation skew.

2. method according to claim 1, wherein, after described step F, further comprising the steps of:

-determine that described the first group # and described the first orthogonal sequence number the resource whether indicated resource distributed with the described network equipment and conflict mutually;

If there is conflict,

-obtain a second demodulated reference signal circulation to be offset; And

-by described group of number, described sequence number, the skew of described physical resource block number, described minimal physical Resource Block numbering and described the second demodulated reference signal circulation skew, obtain second group # and a second orthogonal sequence numbering, described the second group # is used to indicate second running time-frequency resource in described multiple running time-frequency resources, and described the second orthogonal sequence numbering is used to indicate corresponding to second orthogonal sequence in multiple orthogonal sequences of this running time-frequency resource.

3. the method for the resource of the physical hybrid automatic repeat request indicator channel sending for definite network equipment in a subscriber terminal equipment, this network equipment is provided with receive channel on multiple component carriers, this physical hybrid automatic repeat request indicator channel is a business datum transmitting channel on first component carrier in described multiple component carriers corresponding to a subscriber terminal equipment, and the method comprises the following steps:

A. obtain a group number, its expression can be used for the number of the multiple running time-frequency resources that distribute;

B. obtain a sequence number, it represents the number of the corresponding multiple orthogonal sequences of each running time-frequency resource;

C. obtain a minimal physical Resource Block numbering at described business datum transmitting channel;

D. a numbering of number and described the first component carrier by described group of number, described sequence number, described multiple component carriers, obtains a physical resource block number skew corresponding to described minimal physical Resource Block numbering; Wherein, described steps d realizes by following formula: $I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{Lowest}\_\mathrm{index}\_\mathrm{offset}}=\frac{J_{\mathrm{CC}}\·2N_{\mathrm{SF}}^{\mathrm{PHICH}}\·N_{\mathrm{PHICH}}^{\mathrm{group}}}{M},$ Wherein,

for described physical resource block number skew;

M is the number of described multiple component carriers;

J _cCfor the described numbering of described the first component carrier, and 0≤J _cC≤ M-1;

for described group of number; And

for described sequence number, for the size of the spreading factor of each sequence;

E. obtain a first demodulated reference signal circulation skew; And

F. by described group of number, described sequence number, the skew of described physical resource block number, described minimal physical Resource Block numbering and described the first demodulated reference signal circulation skew, obtain first group # and a first orthogonal sequence numbering, described the first group # is used to indicate first running time-frequency resource in described multiple running time-frequency resources, and described the first orthogonal sequence numbering is used to indicate corresponding to first orthogonal sequence in multiple orthogonal sequences of this running time-frequency resource; Wherein,

Described step f passes through formula one:

Or formula two:

$n_{\mathrm{PHICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{lowest}\_\mathrm{index}}+I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{Lowest}\_\mathrm{index}\_\mathrm{offset}}+n_{\mathrm{DMRS}})\mathrm{mod}\left(N_{\mathrm{PHICH}}^{\mathrm{group}}\right),$

realize, wherein,

for described the first group #;

for described the first orthogonal sequence numbering;

for the certainly numbering skew of described physical resource;

for described group of number;

for described sequence number, for the size of the spreading factor of each sequence;

for described minimal physical Resource Block numbering; And

N _dMRSfor described the first demodulated reference signal circulation skew.

4. one kind is used to the resource allocation device of a physical hybrid automatic repeat request indicator channel Resources allocation in a network equipment, this network equipment is provided with receive channel on multiple component carriers, this physical hybrid automatic repeat request indicator channel is a business datum transmitting channel on first component carrier in described multiple component carriers corresponding to a subscriber terminal equipment, and this resource allocation device comprises:

An acquisition device, its for

-obtain a group number, its expression can be used for the number of the multiple running time-frequency resources that distribute;

-obtaining a sequence number, it represents the number of the corresponding multiple orthogonal sequences of each running time-frequency resource;

-obtain at a minimal physical Resource Block of described business datum transmitting channel and number; And

-obtain a first demodulated reference signal circulation to be offset;

A processor, its for

A numbering of-number and described the first component carrier by described group of number, described sequence number, described multiple component carriers, obtains a physical resource block number skew corresponding to described minimal physical Resource Block numbering; Wherein, obtain described physical resource block number skew by following formula:

$I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{Lowest}\_\mathrm{index}\_\mathrm{offset}}=\frac{J_{\mathrm{CC}}\·2N_{\mathrm{SF}}^{\mathrm{PHICH}}\·N_{\mathrm{PHICH}}^{\mathrm{group}}}{M},$ Wherein,

for described physical resource block number skew;

M is the number of described multiple component carriers;

J _cCfor the described numbering of described the first component carrier, and 0≤J _cC≤ M-1;

for described group of number; And

for described sequence number, for the size of the spreading factor of each sequence; And

-by described group of number, described sequence number, the skew of described physical resource block number, described minimal physical Resource Block numbering and described the first demodulated reference signal circulation skew, obtain first group # and a first orthogonal sequence numbering, described the first group # is used to indicate first running time-frequency resource in described multiple running time-frequency resources, and described the first orthogonal sequence numbering is used to indicate corresponding to first orthogonal sequence in multiple orthogonal sequences of this running time-frequency resource; Wherein,

By formula one:

Or formula two:

$n_{\mathrm{PHICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{lowest}\_\mathrm{index}}+I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{Lowest}\_\mathrm{index}\_\mathrm{offset}}+n_{\mathrm{DMRS}})\mathrm{mod}\left(N_{\mathrm{PHICH}}^{\mathrm{group}}\right),$

obtain described the first group # and described the first orthogonal sequence numbering, wherein,

for described the first group #;

for described the first orthogonal sequence numbering;

for described physical resource block number skew;

for described group of number;

for described sequence number, for the size of the spreading factor of each sequence;

for described minimal physical Resource Block numbering; And

N _dMRSfor described the first demodulated reference signal circulation skew.

5. resource allocation device according to claim 4, wherein, described processor also for:

-determine that described the first group # and described the first orthogonal sequence number the resource whether indicated resource distributed with the described network equipment and conflict mutually;

If there is conflict,

Described acquisition device is also for obtaining a second demodulated reference signal circulation skew; And

Described processor is also for being offset by described group of number, described sequence number, the skew of described physical resource block number, described minimal physical Resource Block numbering and described the second demodulated reference signal circulation, obtain second group # and a second orthogonal sequence numbering, described the second group # is used to indicate second running time-frequency resource in described multiple running time-frequency resources, and described the second orthogonal sequence numbering is used to indicate corresponding to second orthogonal sequence in multiple orthogonal sequences of this running time-frequency resource.

6. the resource determining device of the resource used of the physical hybrid automatic repeat request indicator channel sending for definite network equipment in a subscriber terminal equipment, this network equipment is provided with receive channel on multiple component carriers, this physical hybrid automatic repeat request indicator channel is a business datum transmitting channel on first component carrier in described multiple component carriers corresponding to a subscriber terminal equipment, and this resource determining device comprises:

An acquisition device, its for

-obtain a group number, its expression can be used for the number of the multiple running time-frequency resources that distribute;

-obtaining a sequence number, it represents the number of the corresponding multiple orthogonal sequences of each running time-frequency resource;

-obtain at a minimal physical Resource Block of described business datum transmitting channel and number; And

-obtain a first demodulated reference signal circulation to be offset;

A processor, its for

A numbering of-number and described the first component carrier by described group of number, described sequence number, described multiple component carriers, obtains a physical resource block number skew corresponding to described minimal physical Resource Block numbering; Wherein, obtain described physical resource block number skew by following formula:

$I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{Lowest}\_\mathrm{index}\_\mathrm{offset}}=\frac{J_{\mathrm{CC}}\·2N_{\mathrm{SF}}^{\mathrm{PHICH}}\·N_{\mathrm{PHICH}}^{\mathrm{group}}}{M},$ Wherein,

for described physical resource block number skew;

M is the number of described multiple component carriers;

J _cCfor the described numbering of described the first component carrier, and 0≤J _cC≤ M-1;

for described group of number; And

for described sequence number, for the size of the spreading factor of each sequence; And

-by described group of number, described sequence number, the skew of described physical resource block number, described minimal physical Resource Block numbering and described the first demodulated reference signal circulation skew, obtain first group # and a first orthogonal sequence numbering, described the first group # is used to indicate first running time-frequency resource in described multiple running time-frequency resources, and described the first orthogonal sequence numbering is used to indicate corresponding to first orthogonal sequence in multiple orthogonal sequences of this running time-frequency resource; Wherein,

By formula one:

Or formula two:

$n_{\mathrm{PHICH}}^{\mathrm{group}}=(I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{lowest}\_\mathrm{index}}+I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{Lowest}\_\mathrm{index}\_\mathrm{offset}}+n_{\mathrm{DMRS}})\mathrm{mod}\left(N_{\mathrm{PHICH}}^{\mathrm{group}}\right),$

obtain described the first group # and described the first orthogonal sequence numbering, wherein,

for described the first group #;

for described the first orthogonal sequence numbering;

for described physical resource block number skew;

for described group of number;

for described sequence number, for the size of the spreading factor of each sequence;

for described minimal physical Resource Block numbering; And

N _dMRSfor described the first demodulated reference signal circulation skew.