CN101702644B - Transmission method of physical mixed retransmission indicating channel (PHICH) and device thereof - Google Patents

Abstract

The invention discloses a transmission method of a physical mixed retransmission indicating channel (PHICH) and a device thereof, and has the advantages of good adjusting flexibility and less resources cost. The method is suitable for a scene that multi-uplink component carrier waves respond to a downlink component carrier wave. The method comprises the steps of: rearranging index of a physical resource block in the uplink component carrier waves; confirming the resource of the physical mixed retransmission indicating channel (PHICH) in the downlink component carrier wave according to the rearranged index; and transmitting the PHICH which has feedback information of uplink transmit data according to the PHICH resource by a base station.

Description

A kind of transmission method of physical mixing retransmission indicating chanel and device

Technical field

The present invention relates to the communications field, be specifically related to transmission method and the device of a kind of physical mixing retransmission indicating chanel (PhysicalHybrid ARQ Indicator Channel, referred to as PHICH).

Background technology

Long Term Evolution (Long Term Evolution, referred to as LTE) system is the essential planning of third generation partnership.When LTE system adopts regular circulation prefix, a upstream or downstream symbol that time slot comprises 7 length, when LTE system adopts extended cyclic prefix, a upstream or downstream symbol that time slot comprises 6 length.Fig. 1 is the structural representation of the Physical Resource Block of the system bandwidth of LTE system while being 5MHz, as shown in Figure 1, a Resource Unit (Resource Element, referred to as RE) be a subcarrier in an OFDM symbol, and a downlink resource piece (Resource Block, referred to as RB) is made up of continuous 12 subcarriers and 7 continuous (when extended cyclic prefix being 6) OFDM symbols.A Resource Unit is 180kHz on frequency domain, is the time span of a general time slot in time domain, carries out resource and divides timing, can distribute taking Resource Block as base unit.In sub-frame of uplink, Physical Uplink Control Channel (Physical Uplink Control Channel, PUCCH) be positioned on two sidebands of whole frequency band, middle for transmitting physical Uplink Shared Channel (Physical Uplink SharedChannel, PUSCH), this channel is used for carrying upstream data, as shown in Figure 2.

LTE system definition following several physical channels:

Physical Broadcast Channel (Physical broadcast channel, referred to as PBCH): the information of this channel bearing comprises the frame number of system, the downlink bandwidth of system, the cycle of physical mixing retransmission indicating chanel, and for determining the parameter N of physical mixing retransmission indicating chanel (Physical hybrid ARQ indicator channel, referred to as PHICH) channel group number _g∈ { 1/6,1/2,1,2}.

PDCCH: for bearing downlink control information, comprising: uplink and downlink schedule information, and uplink power control information.

The form of Downlink Control Information (Downlink Control Information, referred to as DCI) is divided into following several: DCI format 0,1,1A, 1B, 1C, 1D, 2,2A, 3,3A etc.; Wherein, format 0 is used to indicate the scheduling of Physical Uplink Shared Channel (Physical uplink shared channel, referred to as PUSCH); DCI format 1,1A, 1B, 1C, 1D is for the different transmission mode of the Physical Downlink Shared Channel (Physical Downlink Shared Channel, referred to as PDSCH) of single transport piece; DCI format 2,2A is for the different transmission mode of space division multiplexing; DCI format 3,3A is for the transmission of the power control instruction of Physical Uplink Control Channel (Physical uplink control channel, referred to as PUCCH) and PUSCH.

The corresponding 4 kinds of grades of PDCCH (Level), also be referred to as 4 kinds of PDCCH Format, respectively corresponding 1 CCE (Control Channel Element, control channel unit), 2 CCE, 4 CCE, 8 CCE, wherein, corresponding 9 REG (the Resource-element group of CCE, resource unit group), corresponding 4 RE of REG (Resource element, Resource Unit).

Physical Uplink Shared Channel: for carrying uplink transmission data.The resource that this channel is relevant is distributed, modulation and encoding scheme, the control informations such as the Cyclic shift (cyclic shift) of demodulated reference signal (Demodulation Reference Signal, referred to as DMRS) are arranged with DCI format 0 by UL grant (uplink authorization).

Physical mixing retransmission indicating chanel (Physical Hybrid ARQ Indicator Channel, referred to as PHICH): for carrying the ACK/NACK feedback information of uplink transmission data.The number of PHICH channel group, duration (duration), determined by the system message in the PBCH of the descending carrier at place, the time-frequency position of PHICH is by the number of PHICH channel group, duration, the antenna configuration of community PBCH, community ID, and in the group number of PHICH and group, sequence index determines.

For the frame structure 1 of standard definition, the number N of PHICH group _pHICH ^groupdetermined by following formula:

N _g{ 1/6,1/2,1,2} is determined by the system message in the PBCH of the DL carrier (Downlink carrier, descending carrier) at place ∈, n _pHICH ^groupfrom 0 to N _pHICH ^group-1 numbering;

N _rB ^dLit is the bandwidth of the descending carrier at PHICH place;

For the frame structure 2 of standard definition, the every subframe of number of PHICH group is m _in _pHICH ^group, wherein m _idetermined by table 1.

Table 1

PHICH resource is by (n _pHICH ^group, n _pHICH ^seq) determine, wherein: n _pHICH ^groupfor the group number of PHICH, n _pHICH ^seqbe the index of orthogonal sequence in group, defined by following formula:

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

N _dMRSit is the cyclic shift amount of the demodulated reference signal (Demodulation ReferenceSignal, referred to as DMRS) of definition in DCI format 0;

N _sF ^pHICHit is the spreading factor of PHICH modulation;

I _{pRB_RA} ^lowest_indexthe minimum index of the Physical Resource Block (Physical Resource Block, referred to as PRB) of ascending resource distribution, i.e. the minimum index of the PRB of PUSCH;

LTE Release-8 has defined 6 kinds of bandwidth: 1.4MHz, 3MHz, 5MHz, 10MHz, 15MHz and 20MHz.

Advanced long-term evolution system (Long-Term Evolution Advanced, referred to as LTE-Advance) is the evolution version of LTE Release-8.Except meeting or exceeding third generation partner program (3rd Generation Partnership Project, referred to as 3GPP) TR 25.913: outside all related needs of " Requirements for Evolved UTRA (E-UTRA) and Evolved UTRAN (E-UTRAN) ", also to meet or exceed International Telecommunication Union's radio communication group (International Telecommunications Union-Radio communication sector, referred to as ITU-R) propose senior international wireless communication system (International MobileTelecommunication Advanced, referred to as IMT-Advanced) demand.Wherein, refer to the demand of LTERelease-8 backward compatibility: the terminal of LTE Release-8 can be worked in the network of LTE-Advanced; The terminal of LTE-Advanced can be worked in the network of LTE Release-8.In addition, LTE-Advanced should be able to be at the spectrum disposition of different sizes, comprises work under the spectrum disposition wider than LTE Release-8 (as the continuous frequency spectrum resource of 100MHz), to reach higher performance and target peak speed.Consider and the compatibility of LTE Release-8, for the bandwidth that is greater than 20MHz, adopt the mode of spectrum aggregation (Carrier aggregation), that is:

Two or more component carriers (component carrier) is assembled the downstream transmission bandwidth to support to be greater than 20MHz.

Terminal can receive one or more component carriers by its ability simultaneously:

There is the LTE-A terminal that exceedes 20MHz receiving ability can receive the transmission on multiple component carriers simultaneously.LTE Rel-8 terminal can only receive the transmission on one-component carrier wave, as the structure of this component carrier is followed Rel-8 specification.

Due to different spectrum application scenes, likely there is the scene of the corresponding descending carrier of multiple upstream components carrier waves, that is to say, on multiple upstream components carrier waves, the corresponding ACK/NACK feedback information of each upstream components carrier wave is carried on different physical mixing retransmission indicating chanel (PHICH) transmission of same descending carrier, therefore, need to define a kind of sending method of new physical mixing retransmission indicating chanel, physical mixing retransmission indicating chanel assignment problem when solving the corresponding descending carrier of multiple upstream components carrier waves.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of transmission method and device of physical mixing retransmission indicating chanel, and dispatching flexibility is good, and resource overhead is little.

For solving the problems of the technologies described above, the invention provides a kind of sending method of physical mixing retransmission indicating chanel, be applicable to the scene of the corresponding downlink component carrier of multiple upstream components carrier waves, described method comprises:

Rearrange the index of the Physical Resource Block in upstream components carrier wave, determine the resource of physical mixing retransmission indicating chanel in downlink component carrier (PHICH) according to the described index rearranging; Base station sends the PHICH of carrying uplink transmission data feedback information according to described PHICH resource.

Further, determine one of in the following ways the resource of PHICH in downlink component carrier:

(1) determine according to the cyclic shift amount of the index of Physical Resource Block that uplink transmission data is distributed and corresponding demodulated reference signal;

(2) determine according to the cyclic shift amount of the index of the index of upstream components carrier wave and Physical Resource Block that uplink transmission data is distributed and corresponding demodulated reference signal;

(3) determine according to the cyclic shift amount of the index of the index of upstream components carrier wave and side-play amount and Physical Resource Block that uplink transmission data is distributed and corresponding demodulated reference signal;

Wherein, the index of Physical Resource Block that described uplink transmission data is distributed by the minimum index of distribution Physical Resource Block, or, distribute the highest index of Physical Resource Block.

Further, the method that rearranges the Physical Resource Block in upstream components carrier wave described in is that continuous ascending physical signal Resource Block is carried out to overall cyclic shift.

Further, when upstream components number of carriers is n, and the maximum of this upstream components carrier wave or minimum bandwidth be p Resource Block, and the index of described upstream components carrier wave is i, and the cyclic shift amount of each upstream components carrier wave is or or or wherein p _ifor physical resource number of blocks corresponding to upstream components carrier wave i; Or configure this cyclic shift amount by high-level signaling.

Further, described in rearrange the Physical Resource Block in upstream components carrier wave method can also be that continuous ascending physical signal Resource Block is divided into two continuous ascending physical signal Resource Block groups, by two groups of displacement position.

Further, group technology can be evenly to divide, and, ensure that the Physical Resource Block index in each group is continuous, if Physical Resource Block adds up to odd number, the Physical Resource Block that can not on average divide is divided to any one group.

Further, while rearranging the index of the Physical Resource Block in upstream components carrier wave, can be first rearrange from the index of the Physical Resource Block of upstream components carrier wave, again the Physical Resource Block of all upstream components carrier waves is together in series and carries out the arrangement of index, and according to former head's upstream components carrier wave, after from the order series connection of upstream components carrier wave.

Further, only the Physical Resource Block index of one or more upstream components carrier wave from upstream components carrier wave is rearranged.

For solving the problems of the technologies described above, the present invention also provides a kind of sending method of physical mixing retransmission indicating chanel, comprise,

On LTE R8 basis, increase physical mixing retransmission indicating chanel (PHICH) resource, newly-increased resource is k times that in LTE R8, PHICH reserves resource, and wherein, k is positive number.

Further, in described LTE R8, the reserved resource of PHICH is the reserved resource of the current configuration of LTE R8, or the configurable maximum of LTE R8 is reserved resource, or the configurable maximum of LTE R8 FDD system is reserved resource.

Further, described newly-increased resource is for carrying from the feedback information of upstream components carrier wave.

Further, described newly-increased resource is last m CCE in the control channel unit (CCE) of all Physical Downlink Control Channel of transmission (PDCCH), and the value of m is definite according to newly-increased PHICH resource quantity.

Further, in described newly-increased PHICH resource, each PHICH group is corresponding to 3 the resource groups (REG) in a CCE who organizes as PHICH; Described 3 REG are 3 REG continuous in described CCE, or, be equally spaced 3 REG.

For solving the problems of the technologies described above, the present invention also provides a kind of dispensing device of physical mixing retransmission indicating chanel, comprises index determining unit, and transmitting element, wherein:

Described index determining unit, for rearranging the index of the Physical Resource Block in upstream components carrier wave, determines the resource of physical mixing retransmission indicating chanel in downlink component carrier (PHICH) according to the described index rearranging;

Described transmitting element, sends the PHICH that carries uplink transmission data feedback information according to described PHICH resource.

For solving the problems of the technologies described above, the present invention also provides a kind of receiving system of physical mixing retransmission indicating chanel, comprises index determining unit, and receiving element, wherein:

Described index determining unit, for rearranging the index of the Physical Resource Block in upstream components carrier wave, determines the resource of physical mixing retransmission indicating chanel in downlink component carrier (PHICH) according to the described index rearranging;

Described receiving element, receives the PHICH that carries uplink transmission data feedback information according to described PHICH resource.

The present invention is applicable to the scene of the corresponding downlink component carrier of multiple upstream components carrier waves.By the present invention, utilize the difference of the shared physical resource position of PUCCH and PUSCH, substantially physical mixing retransmission indicating chanel assignment problem while having solved the corresponding descending carrier of multiple upstream components carrier waves, avoid as far as possible the ACK/NACK feedback information of different up-link carriers to correspond on same physical mixing retransmission indicating chanel, improved accordingly dispatching flexibility and the throughput of LTE-Advanced system.And the present invention does not need for each UE configures separately, saving signaling expense.

Brief description of the drawings

Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:

Fig. 1 is that bandwidth is the LTE system Physical Resource Block schematic diagram of 5MHz;

Fig. 2 is LTE system PUCCH and the position view of PUSCH on physical resource;

Fig. 3 is the schematic diagram of existing solution upstream components carrier wave series system.

Fig. 4 is the schematic diagram that solution Physical Resource Block of the present invention is reset.

Embodiment

Because Physical Uplink Control Channel in a upstream components carrier wave is positioned on two sidebands of this component carrier physical resource, the intermediate physical resource of this component carrier is for transmitting physical Uplink Shared Channel, this channel is used for carrying upstream data, the present invention has utilized said structure, the index of having reset Physical Resource Block in upstream components carrier wave, corresponds on not same physical mixing retransmission indicating chanel the ACK/NACK feedback information of different up-link carriers.

The sending method of physical mixing retransmission indicating chanel of the present invention comprises: in the scene of the corresponding downlink component carrier of multiple upstream components carrier waves, rearrange the index of the Physical Resource Block in upstream components carrier wave, determine the resource of physical mixing retransmission indicating chanel in downlink component carrier (PHICH) according to the described index rearranging; Base station sends the PHICH of carrying uplink transmission data feedback information according to described PHICH resource.

After rearrangement, result is to make the index of the Physical Resource Block that at least two Physical Uplink Control Channel in upstream components carrier wave are corresponding at least have a difference intuitively.Preferably, can make at least two Physical Resource Block index differences that the Physical Uplink Control Channel original position in upstream components carrier wave is corresponding.As long as ensure that the Physical Uplink Control Channel in each upstream components carrier wave is staggered.When the Physical Uplink Control Channel of two upstream components carrier waves staggered, thereby can make the Physical Uplink Shared Channel in two upstream components carrier waves also can stagger,, make the corresponding relation of index of the Physical Resource Block that the index of Physical Resource Block of Your Majesty's row component carrier is corresponding from PHICH different, and the corresponding relation of the index of at least one index from the Physical Resource Block of upstream components carrier wave Physical Resource Block corresponding from PHICH is different, thereby avoid occurring the problem of index conflict.Described Your Majesty's row component carrier refers to the upstream components carrier wave that LTE R8 terminal is corresponding; Described is upstream components carrier wave corresponding to non-LTE R8 terminal from upstream components carrier wave.

Preferably, one of can be in the following ways determine the index of physical mixing retransmission indicating chanel in downlink component carrier:

(1) be that the index of PUSCH and the cyclic shift amount of corresponding demodulated reference signal are determined according to Physical Resource Block that uplink transmission data is distributed;

(2) be that the index of PUSCH and the cyclic shift amount of corresponding demodulated reference signal are determined according to the index of upstream components carrier wave and Physical Resource Block that uplink transmission data is distributed;

(3) be that the index of PUSCH and the cyclic shift amount of corresponding demodulated reference signal are determined according to the index of upstream components carrier wave, side-play amount and Physical Resource Block that uplink transmission data is distributed, side-play amount can be configured by high-level signaling.

Wherein, the index of Physical Resource Block that described uplink transmission data is distributed by distribution Physical Resource Block be the minimum index of PUSCH, or, to distribute Physical Resource Block be the highest index of PUSCH.The index of Physical Resource Block that described uplink transmission data is distributed refers to the index after renumbeing.

Preferably, the method that rearranges the Physical Resource Block in upstream components carrier wave described in is that continuous ascending physical signal Resource Block is carried out to overall cyclic shift.Preferably, when upstream components number of carriers is n, and the maximum of this upstream components carrier wave or minimum bandwidth be p Resource Block, and the index of described upstream components carrier wave is i, and the cyclic shift amount of each upstream components carrier wave is or or or wherein p _ifor physical resource number of blocks corresponding to upstream components carrier wave i; Or configure this cyclic shift amount by high-level signaling.

The described method that rearranges the Physical Resource Block in upstream components carrier wave can also be that continuous ascending physical signal Resource Block is divided into two continuous ascending physical signal Resource Block groups, by two groups of displacement position.Group technology can be evenly to divide, and, ensure that the Physical Resource Block index in each group is continuous, if Physical Resource Block adds up to odd number, the Physical Resource Block that can not on average divide is divided to any one group.

Preferably, while rearranging the index of the Physical Resource Block in upstream components carrier wave, can be first rearrange from the index of the Physical Resource Block of upstream components carrier wave, again the Physical Resource Block of all upstream components carrier waves is together in series, and according to former head's upstream components carrier wave, after from the order series connection of upstream components carrier wave, the object of series connection is that conflict appears in the index of avoiding compiled.

Preferably, described Your Majesty's row component carrier refers to the upstream components carrier wave that LTE R8 terminal is corresponding, or, described Your Majesty's row component carrier and being configured by base station from upstream components carrier wave.

Preferably, for with LTE R8 system compatible, Your Majesty's row component carrier can not reset,, only reset upstream components carrier wave corresponding to non-LTE R8 terminal, only the Physical Resource Block index of one or more upstream components carrier wave from upstream components carrier wave is rearranged.

Except adopting the method for resetting, renumbering, can also avoid by increasing PHICH resource the collision problem of index, comprising:

On LTE R8 basis, increase PHICH resource, newly-increased resource is k times of the reserved resource of LTE R8 PHICH, and k is positive number.Wherein, the reserved resource of described LTE R8 PHICH can be the reserved resource of the current configuration of LTE R8, can be also the reserved resource of maximum that LTE R8 can configure, or, the reserved resource of maximum that LTE R8 FDD system can configure; The value of k can be fixed value, also can pass through signal deployment, can determine with reference to number of users.

Preferably, newly-increased resource is for carrying from the feedback information of upstream components carrier wave.

Preferably, newly-increased resource is last m CCE in the control channel unit (CCE) of all PDCCH of transmission (Physical Downlink Control Channel), and the value of m is determined according to newly-increased PHICH resource quantity.

Preferably, in newly-increased PHICH resource, each PHICH group, corresponding to three the resource groups (REG) in a CCE, can be three REG continuous in a CCE, can be also equally spaced three REG.

Below in conjunction with example, the implementation procedure of the embodiment of the present invention is described in detail.It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the application can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.

Suppose there be n upstream components carrier wave (c ₀, c ₁..., c _n-1) a corresponding downlink component carrier (d ₀), wherein upstream components carrier wave c ₀for Your Majesty's row component carrier, upstream components carrier wave c _i(i ≠ 0) is from upstream components carrier wave, the upstream components carrier wave that non-LTE R8 terminal can access; Upstream components carrier wave c _icorresponding Physical Resource Block is RB ₀, RB ₁..., wherein, p is from the maximum of upstream components carrier wave or minimum bandwidth, p _ifor the bandwidth of i Physical Resource Block in this upstream components carrier wave, at upstream components carrier wave c _ithe minimum index of the Physical Resource Block of upper distribution is r _i;

Embodiment 1

Upstream components carrier wave c ₀the PHICH method for channel allocation of upper correspondence is consistent with LTE R8, upstream components carrier wave c _i(i ≠ 0) adopts the method for shining upon again after Physical Resource Block cyclic shift.

PHICH resource is by (n _pHICH ^group, n _pHICH ^seq) determine n _pHICH ^groupfor the group number of PHICH, n _pHICH ^seqbe the index of orthogonal sequence in group, defined by following formula:

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

N _dMRSit is the cyclic shift amount of the demodulated reference signal of definition in DCI format 0;

N _sF ^pHICHit is the spreading factor of PHICH modulation;

When ascending resource distribute Physical Resource Block at upstream components carrier wave c ₀when upper,

I _{pRB_RA} ^lowest_indexthe minimum index r of the Physical Resource Block of ascending resource distribution _i;

When ascending resource distribute Physical Resource Block at upstream components carrier wave c _iwhen (i ≠ 0) is upper,

$I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{lowest}\_\mathrm{index}}=(r_i+\mathrm{shift})\mathrm{mod}{p}_i,$ Wherein, cyclic shift amount shift is or, or, or, maximum (or minimum) bandwidth of described n upstream components carrier wave is p Resource Block, p _ifor the bandwidth of i Physical Resource Block from upstream components carrier wave.

Embodiment 2

Upstream components carrier wave c ₀the PHICH method for channel allocation of upper correspondence is consistent with LTE R8, upstream components carrier wave c _i(i ≠ 0) adopts the method for shining upon again after Physical Resource Block cyclic shift, and, upstream components carrier wave c _iintegral shift again after renumbeing, this shift amount offset is configured by high-level signaling;

PHICH resource is by (n _pHICH ^group, n _pHICH ^seq) determine n _pHICH ^groupfor the group number of PHICH, n _pHICH ^seqbe the index of orthogonal sequence in group, defined by following formula:

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

N _dMRSit is the cyclic shift amount of the demodulated reference signal of definition in DCI format 0;

N _sF ^pHICHit is the spreading factor of PHICH modulation;

When ascending resource distribute Physical Resource Block at upstream components carrier wave c ₀when upper,

I _{pRB_RA} ^lowest_indexthe minimum index r of the Physical Resource Block of ascending resource distribution _i;

When ascending resource distribute Physical Resource Block at upstream components carrier wave c _iwhen (i ≠ 0) is upper,

$I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{lowest}\_\mathrm{index}}=(r_i+\mathrm{shift})\mathrm{mod}{p}_i+\mathrm{offset},$ Wherein, cyclic shift amount shift is or, or, or, maximum (or minimum) bandwidth of described n upstream components carrier wave is p Resource Block, p _ifor the bandwidth of i Physical Resource Block from upstream components carrier wave.Offest is more than or equal to zero.

Embodiment 3

Upstream components carrier wave c ₀the PHICH method for channel allocation of upper correspondence is consistent with LTE R8, upstream components carrier wave c _i(i ≠ 0) adopts the method for shining upon again after Physical Resource Block cyclic shift, and, upstream components carrier wave c _iafter renumbeing, according to the order of upstream components carrier index i, the Physical Resource Block of all upstream components carrier waves is together in series again;

PHICH resource is by (n _pHICH ^group, n _pHICH ^seq) determine n _pHICH ^groupfor the group number of PHICH, n _pHICH ^seqbe the index of orthogonal sequence in group, defined by following formula:

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

N _dMRSit is the cyclic shift amount of the demodulated reference signal of definition in DCI format 0;

N _sF ^pHICHit is the spreading factor of PHICH modulation;

When ascending resource distribute Physical Resource Block at upstream components carrier wave c ₀when upper,

I _{pRB_RA} ^lowest_indexthe minimum index r of the Physical Resource Block of ascending resource distribution _i;

When ascending resource distribute Physical Resource Block at upstream components carrier wave c _iwhen (i ≠ 0) is upper,

$I_{\mathrm{PRB}\_\mathrm{RA}}^{\mathrm{lowest}\_\mathrm{index}}=(r_i+\mathrm{shift})\mathrm{mod}{p}_i+s_i,$ Cyclic shift amount shift is or, or, or, maximum (or minimum) bandwidth of described n upstream components carrier wave is p Resource Block, wherein, and S _ifor first Physical Resource Block index position in all upstream components carrier wave Physical Resource Block of current upstream components carrier wave, $s_i=\underset{h=0}{\overset{i-1}{\mathrm{\Σ}}}{p}_k,$ Or, s _i=p × (i-1), or, s _i=p _i× (i-1), or, s _ifor high-level signaling configuration.

Embodiment 4

On LTE R8 basis, increase PHICH resource, newly-increased resource is k times of the reserved resource of LTE R8 PHICH, wherein, the reserved resource of described LTE R8 PHICH can be the reserved resource of the current configuration of LTE R8, also can be the reserved resource of maximum that LTE R8 can configure, or, the reserved resource of maximum that LTE R8 FDD system can configure; The value of k can be fixed value, for example: 2 etc., also can pass through signal deployment; For example: by 2 bits or 1 bit signalling notice.

Newly-increased resource is the feedback information from upstream components carrier wave as carrying, i.e. the feedback information of upstream components carrier wave corresponding to non-LTE R8 terminal.

Newly-increased resource is last m CCE in the control channel unit (CCE) of all PDCCH of transmission, and the value of m is definite according to newly-increased PHICH resource quantity;

A PHICH group is corresponding to three the resource groups (REG) in a CCE;

It can be three REG continuous in a CCE that a PHICH organizes corresponding 3 REG, for example: and 1,2,3, or, 4,5,6, or, 7,8,9; Also can be equally spaced three REG, for example: Isosorbide-5-Nitrae, 7, or, 2,5,8, or, 3,6,9.

The dispensing device of realizing said method comprises index determining unit, and transmitting element, wherein:

Described index determining unit, for rearranging the index of the Physical Resource Block in upstream components carrier wave, determines the resource of physical mixing retransmission indicating chanel in downlink component carrier (PHICH) according to the described index rearranging;

Described transmitting element, sends the PHICH that carries uplink transmission data feedback information according to described PHICH resource.

The receiving system of realizing said method comprises index determining unit, and receiving element, wherein:

Described index determining unit, for rearranging the index of the Physical Resource Block in upstream components carrier wave, determines the resource of physical mixing retransmission indicating chanel in downlink component carrier (PHICH) according to the described index rearranging;

Described receiving element, receives the PHICH that carries uplink transmission data feedback information according to described PHICH resource.

To sum up, according to the abovementioned embodiments of the present invention, the work of the UE that has ensured LTE-A in spectrum aggregation mode, is conducive to the compatibility of LTE-Advanced and LTE Release-8, is conducive to improve dispatching flexibility and the throughput of LTE-Advanced system.

Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on the network that multiple calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, or they are made into respectively to each integrated circuit modules, or the multiple modules in them or step are made into single integrated circuit module to be realized.Like this, the present invention is not restricted to any specific hardware and software combination.

These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (10)

1. a sending method for physical mixing retransmission indicating chanel, is applicable to multiple upstream components carrier waves pair

Answer the scene of a downlink component carrier, described method comprises:

Rearrange the index of the Physical Resource Block in upstream components carrier wave, determine the resource of physical mixing retransmission indicating chanel in downlink component carrier (PHICH) according to the described index rearranging, make the index of the Physical Resource Block that at least two Physical Uplink Control Channel in upstream components carrier wave are corresponding at least have a difference; Base station sends the PHICH of carrying uplink transmission data feedback information according to described PHICH resource.

2. the method for claim 1, is characterized in that,

Determine one of in the following ways the resource of PHICH in downlink component carrier:

(1) determine according to the cyclic shift amount of the index of Physical Resource Block that uplink transmission data is distributed and corresponding demodulated reference signal;

(2) determine according to the cyclic shift amount of the index of the index of upstream components carrier wave and Physical Resource Block that uplink transmission data is distributed and corresponding demodulated reference signal;

(3) determine according to the cyclic shift amount of the index of the index of upstream components carrier wave and side-play amount and Physical Resource Block that uplink transmission data is distributed and corresponding demodulated reference signal;

Wherein, the index of Physical Resource Block that described uplink transmission data is distributed by the minimum index of distribution Physical Resource Block, or, distribute the highest index of Physical Resource Block.

3. the method for claim 1, is characterized in that,

The described method that rearranges the Physical Resource Block in upstream components carrier wave is that continuous ascending physical signal Resource Block is carried out to overall cyclic shift.

4. method as claimed in claim 3, is characterized in that,

When upstream components number of carriers is n, and the maximum of this upstream components carrier wave or minimum bandwidth be p Resource Block, and the index of described upstream components carrier wave is i, and the cyclic shift amount of each upstream components carrier wave is or or or wherein p _ifor physical resource number of blocks corresponding to upstream components carrier wave i; Or configure this cyclic shift amount by high-level signaling.

5. the method for claim 1, is characterized in that,

The described method that rearranges the Physical Resource Block in upstream components carrier wave can also be that continuous ascending physical signal Resource Block is divided into two continuous ascending physical signal Resource Block groups, by two groups of displacement position.

6. method as claimed in claim 5, is characterized in that,

Group technology can be evenly to divide, and, ensure that the Physical Resource Block index in each group is continuous, if Physical Resource Block adds up to odd number, the Physical Resource Block that can not on average divide is divided to any one group.

7. the method for claim 1, is characterized in that,

While rearranging the index of the Physical Resource Block in upstream components carrier wave, can be first rearrange from the index of the Physical Resource Block of upstream components carrier wave, again the Physical Resource Block of all upstream components carrier waves is together in series and carries out the arrangement of index, and according to former head's upstream components carrier wave, after from the order series connection of upstream components carrier wave.

8. the method for claim 1, is characterized in that,

Only the Physical Resource Block index of one or more upstream components carrier wave from upstream components carrier wave is rearranged.

9. a dispensing device for physical mixing retransmission indicating chanel, is applicable to multiple upstream components carrier waves pair

Answer the scene of a downlink component carrier, comprise index determining unit, and transmitting element, wherein:

Described index determining unit, for rearranging the index of the Physical Resource Block in upstream components carrier wave, determine the resource of physical mixing retransmission indicating chanel in downlink component carrier (PHICH) according to the described index rearranging, make the index of the Physical Resource Block that at least two Physical Uplink Control Channel in upstream components carrier wave are corresponding at least have a difference;

Described transmitting element, sends the PHICH that carries uplink transmission data feedback information according to described PHICH resource.

10. a receiving system for physical mixing retransmission indicating chanel, is applicable to multiple upstream components carrier waves

The scene of a corresponding downlink component carrier, comprises index determining unit, and receiving element, its

In:

Described index determining unit, for rearranging the index of the Physical Resource Block in upstream components carrier wave, determine the resource of physical mixing retransmission indicating chanel in downlink component carrier (PHICH) according to the described index rearranging, make the index of the Physical Resource Block that at least two Physical Uplink Control Channel in upstream components carrier wave are corresponding at least have a difference;

Described receiving element, receives the PHICH that carries uplink transmission data feedback information according to described PHICH resource.