CN102076094A - Method and equipment for determining PHICH ( Physical Hybrid ARQ Indicator Channel) resources in band spread system - Google Patents

Abstract

The invention discloses a method and equipment for determining PHICH ( Physical Hybrid ARQ Indicator Channel) resources in a band spread system. In the method, bandwidth resources supporting backward compatible are spread in advance; and the method comprises the following steps of: A. indexing identifications of PRBs (Physical Resource Blocks) contained in the spread bandwidth resources in sequence; and B. distributing PUSCH (Physical Uplink Shared Channel) resources and determining PHICH resources according to an index with the minimum value in the PRB related to the PUSCH resources. By using the invention, the PHICH resources in the band spread system can be determined.

Description

Definite method and apparatus of PHICH resource in a kind of band spreading system

Technical field

The present invention relates to wireless communication system, definite method and apparatus of the automatic request retransmission indicating channel of physical mixed (PHICH) resource in the particularly a kind of band spreading system.

Background technology

Strengthen in (LTE-A:LTE-Advanced) system at LTE, in order to guarantee that the LTE terminal can be linked in the LTE-A system, a kind of mode is to supporting the carrier wave of backward compatibility to expand in the LTE system, can in the LTE system, support the end expansion of the carrier wave of backward compatibility during specific implementation, also can in the LTE system, support the two ends expansion of the carrier wave of backward compatibility simultaneously.Usually, in the LTE system, carrier wave is that unit distributes with Physical Resource Block (PRB), such as, on 25 PRB, these 25 PRB can support backward compatibility as if the LTE system works, then can expand, perhaps, the two ends of these 25 PRB be expanded simultaneously the end of these 25 PRB.

Wherein, the PRB in the LTE system still works according to the mode of LTE, to the UE of LTE system as seen; And the PRB of expansion as carrier block only to the UE of LTE-A system as seen.For ease of describing, the PRB outside the PRB that exceeds the LTE system (being essentially the PRB of expansion) is called carrier block (Carrier Segment) here.Referring to Fig. 1, the upstream bandwidth expansion schematic diagram that Fig. 1 obtains for the above-mentioned extended mode of available technology adopting.As shown in Figure 1, the overall system bandwidth after the expansion is B MHz, and wherein the B0 MHz in the middle of the bandwidth is the bandwidth that the LTE system is supported, it to the UE of LTE system as seen; Segment1 and Segment1 be the bandwidth that the LTE system is supported is expanded resulting, only as seen to the UE of LTE-A system.

In order to guarantee the reliability of transmitting uplink data, transmission of uplink data is based on mixing automatic repeat requests (HARQ:Hybrid-ARQ) system and carries out, wherein, definite method of ACK/NACK feedback channel PHICH resource when the LTE system provides based on the HARQ transmit ascending data, definite method of this PHICH resource are to utilize the minimum PRB index of up shared data channel (PUSCH) resource and the circulation skew of uplink reference signals to determine.With LTE bandwidth shown in Figure 1 is the B0 example, if the PRB number that comprises in this upstream bandwidth B0 is

Then each PRB of upstream bandwidth B0 being carried out index successively is

Promptly utilize the minimum PRB index of PUSCH can be

As can be seen, the method of definite PHICH resource that the LTE system provides can only be determined the PHICH resource of the upstream bandwidth of LTE system support such as upstream bandwidth B0 correspondence shown in Figure 1, all upstream bandwidths after can not determining to expand are such as the PHICH resource of upstream bandwidth B correspondence shown in Figure 1, therefore, the upstream bandwidth after a kind of definite expansion is the current technical problem that needs to be resolved hurrily such as the method for the PHICH resource of upstream bandwidth B correspondence shown in Figure 1.

Summary of the invention

The invention provides definite method and apparatus of PHICH resource in a kind of band spreading system, so that determine the PHICH resource of the upstream bandwidth of expansion such as upstream bandwidth B correspondence shown in Figure 1.

Definite method of PHICH resource in a kind of band spreading system is expanded the bandwidth resources of supporting backward compatibility in advance, and this method may further comprise the steps:

A, the Physical Resource Block PRB that bandwidth resources comprised that described expansion is obtained carries out the index sign successively;

B distributes up shared data channel PUSCH resource, and the PHICH resource determined in the index of value minimum among the PRB that relates to according to described PUSCH resource.

PHICH resource locking equipment really in a kind of band spreading system, this equipment comprises:

Expanding element is used in advance the bandwidth resources of supporting backward compatibility being expanded,

Identify unit is used for the Physical Resource Block PRB that bandwidth resources comprised that described expanding element expansion obtains is carried out the index sign successively;

Determining unit is used to distribute up shared data channel PUSCH resource, and the PHICH resource determined in the index of value minimum among the PRB that relates to according to described PUSCH resource.

As can be seen, in the scheme provided by the invention, carry out the index sign successively by the PRB that bandwidth resources comprised that expansion is obtained; Distribute the PUSCH resource, the PHICH resource determined in the index of value minimum among the PRB that relates to according to described PUSCH resource, can realize determining the purpose of the PHICH resource of the actual bandwidth correspondence that obtains after the expansion in the band spreading system;

Further, the present invention can guarantee that LTE-A UE is consistent with the method for the PRB mapping PHICH of LTE UE on the backward compatibility part of system bandwidth because the PRB that bandwidth resources comprised that expansion is obtained unifies the index sign.

Description of drawings

The upstream bandwidth expansion schematic diagram that Fig. 1 obtains for the above-mentioned extended mode of available technology adopting;

The basic flow sheet that Fig. 2 provides for the embodiment of the invention;

The bandwidth resources schematic diagram that the expansion that Fig. 3 a provides for the embodiment of the invention obtains;

First schematic diagram that the PRB that bandwidth resources comprised that expansion is obtained that Fig. 3 b provides for the embodiment of the invention is numbered successively;

Second schematic diagram that the PRB that bandwidth resources comprised that expansion is obtained that Fig. 3 c provides for the embodiment of the invention is numbered successively;

The structure chart of the equipment that Fig. 4 provides for the embodiment of the invention.

Embodiment

In order to make the purpose, technical solutions and advantages of the present invention clearer, describe the present invention below in conjunction with the drawings and specific embodiments.

In the prior art, owing to only provide the system bandwidth that LTE is supported to be numbered, therefore, can only determine the PHICH resource of the upstream bandwidth of LTE system support such as upstream bandwidth B0 correspondence shown in Figure 1, can not determine the actual bandwidth that obtains after the expansion PHICH resource such as upstream bandwidth B correspondence shown in Figure 1, based on this, the inventor obtains definite method of PHICH resource in the band spreading system that the embodiment of the invention provides according to the characteristics of LTE system and LTE-A system being carried out creative work, specifically referring to shown in Figure 2.

Referring to Fig. 2, the basic flow sheet that Fig. 2 provides for the embodiment of the invention.In the present embodiment, if the bandwidth resources that the method for the backward compatibility that provides according to prior art is supported LTE (also for supporting the bandwidth resources of backward compatibility) are expanded, bandwidth resources after being expanded (also are current in esse bandwidth resources, such as upstream bandwidth B shown in Figure 1), afterwards, as shown in Figure 2, this flow process can may further comprise the steps:

Step 201, the PRB that bandwidth resources comprised that expansion is obtained carries out the index sign successively.

Here, bandwidth resources normally are that unit divides with PRB, and so, this step can be carried out the index sign successively at all PRB that bandwidth resources comprised that expansion obtains.

During specific implementation, step 201 can comprise: the PRB that bandwidth resources comprised that described expansion is obtained is numbered successively, the numbering of PRB is determined the index of this PRB.

If the bandwidth resources I0 that supports backward compatibility is expanded the bandwidth resources I1 that obtains shown in Fig. 3 a, wherein, mid portion is for supporting the bandwidth resources I0 of backward compatibility, two example parts are respectively the first carrier piece I01 of expansion and the second carrier block I02 of expansion, because the first carrier piece I01 and the second carrier block I02 are the extended resources that the bandwidth resources I0 that supports backward compatibility is expanded, therefore, as can be seen, the first carrier piece I01 and the second carrier block I02 are adjacent with the bandwidth resources I0 that supports backward compatibility respectively.If the frequency of first carrier piece is greater than the frequency of second carrier block, then in the present embodiment, the PRB that bandwidth resources comprised that described expansion is obtained is numbered successively when specific implementation can multiple way of realization, for ease of understanding, is that example is described with two kinds of forms only below.

First kind of mode:

At first, the PRB that bandwidth resources I0 comprised that supports backward compatibility is numbered successively since first preset numbers; Wherein, first preset numbers can be 0, perhaps is other predefined values, such as 1 etc., does not limit here.With first preset numbers is 0 to be example, and then hypothesis supports the number of the PRB that the bandwidth resources I0 of backward compatibility comprises to be

Then support the index of each PRB that bandwidth resources I0 comprised of backward compatibility to be followed successively by

Afterwards, the PRB that first carrier piece I01 is comprised is numbered, and is specially: the PRB adjacent with the bandwidth resources I0 that supports backward compatibility begins the PRB the first carrier piece is numbered from the next one numbering of the numbering of last PRB of the bandwidth resources I0 that supports backward compatibility successively in first carrier piece I01.Such as, if support being numbered of last PRB of the bandwidth resources I0 of backward compatibility

Then from

Beginning PRB adjacent with the bandwidth resources I0 that supports backward compatibility in first carrier piece I01 is numbered successively, if the PRB number is in the first carrier piece

Then the numbering that the PRB adjacent with the bandwidth resources I0 that supports backward compatibility rises in the first carrier piece is followed successively by

At last, PRB among the second carrier block I02 is numbered, is specially: PRB adjacent with the bandwidth resources I0 that supports backward compatibility in the second carrier block I02 is numbered the PRB in second carrier block since a last numbering of first preset numbers successively.Such as, if first preset numbers is 0, then be numbered successively, if the PRB number is in second carrier block from-1 beginning PRB adjacent from the second carrier block I02 with the bandwidth resources I0 that supports backward compatibility

Then the numbering that the PRB adjacent with the bandwidth resources I0 that supports backward compatibility rises in second carrier block is followed successively by

So far,, can realize flow process that the PRB that bandwidth resources comprised that expansion obtains is numbered successively by aforesaid operations, specifically can be referring to shown in Fig. 3 b.As can be seen, can unify numbering such as the PRB that first carrier piece and second carrier block comprise to the carrier block of the bandwidth resources of supporting backward compatibility and expansion in this way, if first preset numbers is 0, the index of the PRB that bandwidth resources comprised that then can guarantee to support backward compatibility meets the rule of LTE system since 0.

The second way:

This mode is fairly simple for first kind of mode, it need not be numbered respectively at the bandwidth resources of supporting backward compatibility and the carrier block of expansion, but each PRB that the bandwidth resources that successively expansion obtained such as V since second preset numbers comprise carries out serial number, the bandwidth resources that obtain with the expansion shown in Fig. 3 a are example, if begin the bandwidth resources that the expansion shown in Fig. 3 a obtains are numbered, then can obtain the schematic diagram shown in Fig. 3 c from preset value V.Here, V can be predefined numerical value, perhaps determines that with the method for semi-static configuration the embodiment of the invention does not specifically limit.

Need to prove that in the present embodiment, the bandwidth resources that obtain with the expansion shown in Fig. 3 a are example, if V gets negative resulting value for the sum of PRB that second carrier block is comprised, such as, the PRB number is in second carrier block

The value that then obtains is Like this, as can be seen, the second way in fact with first kind of mode in first preset numbers be that 0 o'clock situation is of equal value.

So far, also can realize flow process that the PRB that bandwidth resources comprised that expansion obtains is numbered successively by the second way, this mode is simpler than first kind of mode in implementation process.

Step 202 is distributed up shared data channel PUSCH resource, and the PHICH resource determined in the index of value minimum among the PRB that relates to according to described PUSCH resource.

Here, step 201 to the operation in the step 202 is all carried out by the base station, and wherein, the branch timing of base station in carrying out this step 202 can distribute according to actual conditions.

Here, can be in the PUSCH resource of current needs the numbering of value minimum among the PRB in first time slot among the PRB that described PUSCH resource relates to during the index specific implementation of value minimum, wherein, the PHICH resource of determining is by the PHICH group #

With PHICH orthogonal sequence index

Sign, described

With described Determine by following formula 1 respectively:

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

Wherein, n _DMRSIt is the circulation skew of uplink reference signals;

It is the spreading factor of PHICH channel; Be the PHICH group number of semi-static configuration, described

Be the numbering of numbering value minimum among the PRB in first time slot in the PUSCH resource of current needs, if described PUSCH resource is to be used for the subframe 4 of up/downstream arrangements 0 of TDD or the PUSCH resource in the subframe 9, then described I _PHICHBe 1, otherwise, described I _PHICHBe 0.

Need to prove, in the present embodiment, the numbering of value minimum can be the numbering of the value minimum that operation obtains according to the numbering in the step 201 among the PRB in first time slot in the PUSCH resource among the PRB in the PUSCH resource of current needs in first time slot, and the numbering that also can be the value minimum that operation obtains according to the numbering in the step 201 among the PRB in first time slot in the PUSCH resource is carried out the numbering after the conversion.

Preferably, in the present embodiment, if the bandwidth resources of supporting backward compatibility are numbered since 0, then the numbering of numbering value minimum among the PRB in first time slot in the PUSCH resource directly is defined as in the PUSCH resource of current needs the numbering of numbering value minimum among the PRB in first time slot; Such as first preset numbers in first kind of mode is 0 o'clock, then directly will number the numbering of value minimum among the PRB in first time slot in the PUSCH resource as parameter

Bringing top formula 1 into gets final product.

Certainly, if support the bandwidth resources of backward compatibility to begin to be numbered from the value except that 0, the index that can cause expanding the PRB that the bandwidth resources of supporting backward compatibility in the bandwidth resources (system bandwidth) that obtain comprise like this is different to LTE-A UE with LTE UE, thereby can cause complicated restriction to base station dispatcher, for avoiding this problem, can carry out conversion since 0 principle that is numbered to the numbering of value minimum among the PRB in first time slot in the described PUSCH resource according to the bandwidth resources of supporting backward compatibility, the numbering that obtains after the conversion is defined as in the PUSCH resource of current needs the numbering of 1 value minimum among the PRB in first time slot.Such as adopting the second way described in the step 201 that PRB is numbered, then shown in Fig. 3 c, the PRB in the actual bandwidth is from V (if equaling 0) beginning serial number, and promptly the index of the PRB in the actual bandwidth is

So, among the PRB in determining the PUSCH resource of current needs in first time slot during the numbering of value minimum, determine in the described PUSCH resource numbering n of value minimum among the PRB in first time slot earlier _PRB, afterwards, since 0 principle that is numbered the numbering of value minimum among the PRB in first time slot in the described PUSCH resource is carried out conversion according to the bandwidth resources of supporting backward compatibility, specifically be transformed to: with n _PRBDeduct total number of the PRB that second carrier block comprised, obtain the numbering after the conversion, formula specific as follows:

Afterwards, numbering after the conversion that obtains is defined as in the PUSCH resource of current needs the numbering of value minimum among the PRB in first time slot, directly as parameter

Bringing formula 1 into gets final product.Need to prove, in the present embodiment,, also can not adopt above-mentioned map function, but directly solve by the cyclic shift of selecting suitable uplink reference signals if support the bandwidth resources of backward compatibility to begin to be numbered from the value except that 0.As can be seen, above-mentioned is a kind of giving an example, and the application of the non-limiting embodiment of the invention.

So far, by above-mentioned steps, can realize the flow process that the embodiment of the invention provides.Afterwards, after the base station receives PUSCH, the PHICH resource feedback HARQ ACK/NACK information that can determine.

Above-mentioned is that the method that the embodiment of the invention provides is described, and the equipment that the embodiment of the invention is provided is described below.

Referring to Fig. 4, the structure chart of the equipment that Fig. 4 provides for the embodiment of the invention.As shown in Figure 4, this equipment can comprise:

Expanding element 401 is used for the bandwidth resources of supporting backward compatibility are expanded,

Identify unit 402 is used for the Physical Resource Block PRB that bandwidth resources comprised that 401 expansions obtain to expanding element and carries out the index sign successively;

Determining unit 403 is used to distribute the PUSCH resource, and the PHICH resource determined in the index of value minimum among the PRB that relates to according to described PUSCH resource.

Preferably, the PRB that bandwidth resources comprised that 401 expansions of 402 pairs of expanding elements of identify unit obtain is numbered successively, the numbering of PRB is defined as the index of this PRB.

Wherein, the bandwidth resources that expanding element 401 expansions obtain comprise: bandwidth resources, the first carrier piece of expansion and second carrier block of expansion of supporting backward compatibility, the bandwidth resources with described support backward compatibility are adjacent respectively for described first carrier piece and described second carrier block, and the frequency of first carrier piece is greater than the frequency of second carrier block;

So, identify unit 402 is used for the PRB that bandwidth resources comprised that described expansion obtains is numbered successively since second preset numbers; Described second preset numbers is 0 or gets negative resulting value for the sum of PRB that described second carrier block is comprised.

Preferably, identify unit 402 also can identify by the another kind of mode PRB that bandwidth resources comprised that 401 expansions obtain to expanding element, and be specially: as shown in Figure 4, identify unit 402 comprises

The first numbering subelement 4021 is used for the PRB that bandwidth resources comprised of described support backward compatibility is numbered successively since first preset numbers; Described first preset numbers is 0 or is other values;

The second numbering subelement 4022, be used for from the described first carrier piece PRB adjacent, and successively the PRB the described first carrier piece be numbered from the next one numbering beginning of the numbering of last PRB of the bandwidth resources of described support backward compatibility with the bandwidth resources of described support backward compatibility;

The 3rd numbering subelement 4023 is used for from described second carrier block PRB adjacent with the bandwidth resources of described support backward compatibility, and successively the PRB described second carrier block is numbered from a last numbering beginning of described first preset numbers.

In the present embodiment, the index of value minimum is the numbering of value minimum among the PRB in first time slot in the PUSCH resource of current needs among the PRB that the PUSCH resource relates to;

Wherein, the PHICH resource determined of determining unit 403 is by the PHICH group #

With PHICH orthogonal sequence index

Sign is determined described respectively by following formula

With described

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

Wherein, n _DMRSIt is the circulation skew of uplink reference signals;

It is the spreading factor of PHICH channel;

Be the PHICH group number of semi-static configuration, described

Be the numbering of value minimum among the PRB in first time slot in the PUSCH resource of current needs, if described PUSCH resource is to be used for the subframe 4 of up/downstream arrangements 0 of TDD or the PUSCH resource in the subframe 9, then described I _PHICHBe 1, otherwise, described I _PHICHBe 0.

Preferably, if support the bandwidth resources of backward compatibility to begin to be numbered from the value except that 0, then determining unit 403 is carried out conversion since 0 principle that is numbered to the numbering of value minimum among the PRB in first time slot in the described PUSCH resource according to the bandwidth resources of supporting backward compatibility, the numbering that obtains after the conversion is defined as in the PUSCH resource of current needs the numbering of value minimum among the PRB in first time slot.

As can be seen, in the scheme that the embodiment of the invention provides, carry out the index sign successively by the PRB that bandwidth resources comprised that described expansion is obtained; Distribute the PUSCH resource, the PHICH resource determined in the index of value minimum among the PRB that relates to according to described PUSCH resource, can realize determining the PHICH resource in the system of bandwidth expansion;

Further, the present invention can guarantee that LTE-A UE is consistent with the method for the PRB mapping PHICH of LTE UE on the backward compatibility part of system bandwidth because the PRB that bandwidth resources comprised that expansion is obtained unifies the index sign.

The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope of protection of the invention.

Claims (12)

1. definite method of PHICH resource in the band spreading system is expanded the bandwidth resources of supporting backward compatibility in advance, it is characterized in that this method may further comprise the steps:

A, the Physical Resource Block PRB that bandwidth resources comprised that described expansion is obtained carries out the index sign successively;

B distributes up shared data channel PUSCH resource, and the automatic request retransmission indicating channel of physical mixed PHICH resource determined in the index of value minimum among the PRB that relates to according to described PUSCH resource.

2. method according to claim 1 is characterized in that, described steps A is:

The PRB that bandwidth resources comprised that described expansion is obtained is numbered successively, the numbering of PRB is defined as the index of this PRB.

3. method according to claim 2, it is characterized in that, the bandwidth resources that described expansion obtains comprise: bandwidth resources, the first carrier piece of expansion and second carrier block of expansion of supporting backward compatibility, the bandwidth resources with described support backward compatibility are adjacent respectively for described first carrier piece and described second carrier block, and the frequency of first carrier piece is greater than the frequency of second carrier block;

The described Physical Resource Block PRB that bandwidth resources comprised that expansion is obtained is numbered successively and comprises:

The PRB that bandwidth resources comprised to described support backward compatibility is numbered successively since first preset numbers; Described first preset numbers is 0 or is other values;

The PRB adjacent in described first carrier piece with the bandwidth resources of described support backward compatibility, and successively the PRB the described first carrier piece is numbered from the next one numbering beginning of the numbering of last PRB of the bandwidth resources of described support backward compatibility;

The PRB adjacent in described second carrier block with the bandwidth resources of described support backward compatibility, and successively the PRB described second carrier block is numbered from a last numbering beginning of described first preset numbers.

4. method according to claim 2, it is characterized in that, the bandwidth resources that described expansion obtains comprise: bandwidth resources, the first carrier piece of expansion and second carrier block of expansion of supporting backward compatibility, the bandwidth resources with described support backward compatibility are adjacent respectively for described first carrier piece and described second carrier block, and the frequency of first carrier piece is greater than the frequency of second carrier block;

The described Physical Resource Block PRB that bandwidth resources comprised that expansion is obtained is numbered successively and comprises:

The Physical Resource Block PRB that comprises from second carrier block, and since second preset numbers all Physical Resource Block PRB that bandwidth resources comprised that described expansion obtains are numbered successively; Described second preset numbers is 0 or gets negative resulting value for the sum of PRB that described second carrier block is comprised.

5. according to claim 3 or 4 described methods, it is characterized in that the index of value minimum is the numbering of value minimum among the PRB in first time slot in the PUSCH resource of current needs among the PRB that described PUSCH resource relates to;

Described definite PHICH resource is by the PHICH group #

With PHICH orthogonal sequence index

Sign, described With described

Determine by following formula respectively:

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

Wherein, n _DMRSIt is the circulation skew of uplink reference signals;

It is the spreading factor of PHICH channel; Be the PHICH group number of semi-static configuration, described

Be the numbering of value minimum among the PRB in first time slot in the PUSCH resource of current needs, if described PUSCH resource is to be used for the subframe 4 of up/downstream arrangements 0 of TDD or the PUSCH resource in the subframe 9, then described I _PHICHBe 1, otherwise, described I _PHICHBe 0.

6. method according to claim 5, it is characterized in that, if support the bandwidth resources of backward compatibility to begin to be numbered from the value except that 0, then since 0 principle that is numbered the numbering of value minimum among the PRB in first time slot in the described PUSCH resource is carried out conversion, the numbering that obtains after the conversion is defined as in the PUSCH resource of current needs the numbering of numbering value minimum among the PRB in first time slot according to the bandwidth resources of supporting backward compatibility.

7. PHICH resource locking equipment really in the band spreading system is characterized in that this equipment comprises:

Expanding element is used for the bandwidth resources of supporting backward compatibility are expanded;

Identify unit is used for the Physical Resource Block PRB that bandwidth resources comprised that described expanding element expansion obtains is carried out the index sign successively;

Determining unit is used to distribute up shared data channel PUSCH resource, and the PHICH resource determined in the index of value minimum among the PRB that relates to according to described PUSCH resource.

8. equipment according to claim 7 is characterized in that, described identify unit is numbered successively to the PRB that bandwidth resources comprised that described expanding element expansion obtains, and the numbering of PRB is defined as the index of this PRB.

9. equipment according to claim 8, it is characterized in that, the bandwidth resources that described expansion obtains comprise: bandwidth resources, the first carrier piece of expansion and second carrier block of expansion of supporting backward compatibility, the bandwidth resources with described support backward compatibility are adjacent respectively for described first carrier piece and described second carrier block, and the frequency of first carrier piece is greater than the frequency of second carrier block;

Described identify unit is used for the Physical Resource Block PRB that bandwidth resources comprised that described expansion obtains is numbered successively since second preset numbers; Described second preset numbers is 0 or gets negative resulting value for the sum of PRB that described second carrier block is comprised.

10. equipment according to claim 8, it is characterized in that, the bandwidth resources that described expansion obtains comprise: bandwidth resources, the first carrier piece of expansion and second carrier block of expansion of supporting backward compatibility, the bandwidth resources with described support backward compatibility are adjacent respectively for described first carrier piece and described second carrier block, and the frequency of first carrier piece is greater than the frequency of second carrier block;

Described identify unit comprises:

The first numbering subelement is used for the PRB that bandwidth resources comprised of described support backward compatibility is numbered successively since first preset numbers; Described first preset numbers is 0 or is other values;

The second numbering subelement, be used for from the described first carrier piece PRB adjacent, and successively the PRB the described first carrier piece be numbered from the next one numbering beginning of the numbering of last PRB of the bandwidth resources of described support backward compatibility with the bandwidth resources of described support backward compatibility;

The 3rd numbering subelement is used for from described second carrier block PRB adjacent with the bandwidth resources of described support backward compatibility, and successively the PRB described second carrier block is numbered from a last numbering beginning of described first preset numbers.

11., it is characterized in that the index of value minimum is the numbering of value minimum among the PRB in first time slot in the PUSCH resource of current needs among the PRB that described PUSCH resource relates to according to claim 9 or 10 described equipment;

The PHICH resource that described determining unit is determined is by the PHICH group #

With PHICH orthogonal sequence index

Sign is determined described respectively by following formula

With described

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

Wherein, n _DMRSIt is the circulation skew of uplink reference signals; It is the spreading factor of PHICH channel;

Be the PHICH group number of semi-static configuration, described

Be the numbering of value minimum among the PRB in first time slot in the PUSCH resource of current needs, if described PUSCH resource is to be used for the subframe 4 of up/downstream arrangements 0 of TDD or the PUSCH resource in the subframe 9, then described I _PHICHBe 1, otherwise, described I _PHICHBe 0.

12. equipment according to claim 11, it is characterized in that, if support the bandwidth resources of backward compatibility to begin to be numbered from the value except that 0, then described determining unit is carried out conversion since 0 principle that is numbered to the numbering of value minimum among the PRB in first time slot in the described PUSCH resource according to the bandwidth resources of supporting backward compatibility, the numbering that obtains after the conversion is defined as in the PUSCH resource of current needs the numbering of value minimum among the PRB in first time slot.

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