CN101702644A - 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 the transmission method and the device of a kind of physical mixing retransmission indicating chanel (PhysicalHybrid ARQ Indicator Channel abbreviates PHICH as).

Background technology

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

LTE system definition following several physical channels:

Physical Broadcast Channel (Physical broadcast channel, abbreviate PBCH as): 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 the parameter N that is used for determining physical mixing retransmission indicating chanel (Physical hybrid ARQ indicator channel abbreviates PHICH as) channel group number _g∈ 1/6,1/2,1,2}.

PDCCH: be used for the bearing downlink control information, comprise: uplink and downlink schedule information, and uplink power control information.

The form of Downlink Control Information (Downlink Control Information abbreviates DCI as) 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 abbreviates PUSCH as); DCI format 1,1A, 1B, 1C, 1D are used for the different transmission mode of the Physical Downlink Shared Channel (Physical Downlink Shared Channel abbreviates PDSCH as) of single transport piece; DCI format 2,2A are used for the different transmission mode of space division multiplexing; DCI format 3,3A are used for the transmission of the power control instruction of Physical Uplink Control Channel (Physical uplink control channel abbreviates PUCCH as) and PUSCH.

The corresponding 4 kinds of grades (Level) of PDCCH, 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 (Resource element, Resource Unit) of REG.

Physical Uplink Shared Channel: be used to carry uplink transmission data.The resource allocation that this channel is relevant, modulation and encoding scheme, the Cyclic shift control informations such as (cyclic shifts) of demodulated reference signal (Demodulation Reference Signal abbreviates DMRS as) is provided with DCI format 0 by UL grant (uplink authorization).

Physical mixing retransmission indicating chanel (Physical Hybrid ARQ Indicator Channel abbreviates PHICH as): the ACK/NACK feedback information that is used to carry uplink transmission data.The number of PHICH channel group, duration (duration), determine by the system message among 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 configurations of sub-district PBCH, sub-district ID, and sequence index decision in the group number of PHICH and the group.

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

N _g{ 1/6,1/2,1,2} is determined by the system message among 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, m wherein _iDetermine by table 1.

Table 1

The PHICH resource is by (n _PHICH ^Group, n _PHICH ^Seq) determine, wherein: n _PHICH ^GroupBe the group number of PHICH, n _PHICH ^SeqBe the index of orthogonal sequence in the group, define 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 abbreviates DMRS as) of definition among the DCI format 0;

N _SF ^PHICHIt is the spreading factor of PHICH modulation;

I _{PRB_RA} ^Lowest_indexBe the minimum index of the Physical Resource Block (Physical Resource Block abbreviates PRB as) of ascending resource distribution, the i.e. 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 abbreviates LTE-Advance as) is the evolution version of LTE Release-8.Remove to satisfy or surpass third generation partner program (3rd Generation Partnership Project, abbreviate 3GPP as) 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 Telecommunications Union's radio communication group (International Telecommunications Union-Radio communication sector, abbreviate ITU-R as) demand of the senior international wireless communication system (International MobileTelecommunication Advanced abbreviates IMT-Advanced as) that proposes.Wherein, the demand with the LTERelease-8 backward compatibility is meant: 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 comprise frequency spectrum configuration (as the continuous frequency spectrum resource of 100MHz) the down work wideer than LTE Release-8, to reach higher performance and target peak speed in the frequency spectrum configuration of different sizes.Consider and the compatibility of LTE Release-8,, adopt the mode of spectrum aggregation (Carrier aggregation), that is: for bandwidth greater than 20MHz

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

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

There is the LTE-A terminal that surpasses the 20MHz receiving ability can receive transmission on a plurality of component carriers simultaneously.LTE Rel-8 terminal can only receive the transmission on the one-component carrier wave, follows the Rel-8 standard as the structure of this component carrier.

Because different spectrum application scene, the scene that the corresponding descending carrier of a plurality of upstream components carrier waves might occur, that is to say, 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 on a plurality of upstream components carrier waves, therefore, the sending method that needs a kind of new physical mixing retransmission indicating chanel of definition, physical mixing retransmission indicating chanel assignment problem when solving the corresponding descending carrier of a plurality of upstream components carrier waves.

Summary of the invention

The technical problem to be solved in the present invention provides 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 a plurality of upstream components carrier waves, described method comprises:

Rearrange the index of the Physical Resource Block in the upstream components carrier wave, determine the resource of physical mixing retransmission indicating chanel in the downlink component carrier (PHICH) according to the described index that rearranges; The 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 the downlink component carrier:

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

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

(3) determine according to 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 the cyclic shift amount of 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, perhaps, distribute the highest index of Physical Resource Block.

Further, the described method of the Physical Resource Block in the upstream components carrier wave that rearranges is for to carry out whole cyclic shift with continuous ascending physical signal Resource Block.

Further, when the 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 then the cyclic shift amount of each upstream components carrier wave is

Perhaps

Perhaps

Perhaps

P wherein _iBe upstream components carrier wave i corresponding physical Resource Block quantity; Perhaps dispose this cyclic shift amount by high-level signaling.

Further, the described method that rearranges the Physical Resource Block in the 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, with two groups of displacement position.

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

Further, when rearranging the index of the Physical Resource Block in the upstream components carrier wave, can be earlier 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, the back is 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 the 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,

Increase physical mixing retransmission indicating chanel (PHICH) resource on LTE R8 basis, newly-increased resource is k a times of PHICH reserved resource among the LTE R8, and wherein, k is a positive number.

Further, the PHICH reserved resource is the reserved resource of the current configuration of LTE R8 among the described LTE R8, perhaps, and the configurable maximum reserved resource of LTE R8, perhaps, the configurable maximum reserved resource of LTE R8 FDD system.

Further, described newly-increased resource is used to carry the feedback information from the upstream components carrier wave.

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

Further, in the described newly-increased PHICH resource, each PHICH organizes corresponding to one as 3 the resource groups (REG) among the CCE of PHICH group; Described 3 REG are 3 continuous among described CCE REG, perhaps, are 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 the index determining unit, and transmitting element, wherein:

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

Described transmitting element sends the PHICH that carries the 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 the index determining unit, and receiving element, wherein:

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

Described receiving element receives the PHICH that carries the 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 a plurality of upstream components carrier waves.By the present invention, utilize the different of the shared physical resource position of PUCCH and PUSCH, physical mixing retransmission indicating chanel assignment problem when having solved descending carrier of a plurality of upstream components carrier waves correspondences basically, avoid the ACK/NACK feedback information of different up-link carriers to correspond on the same physical mixing retransmission indicating chanel as far as possible, improved the dispatching flexibility and the throughput of LTE-Advanced system accordingly.And the present invention does not need for each UE disposes separately, the saving signaling expense.

Description of drawings

Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification 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 PUCCH of LTE system 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 is positioned on two sidebands of this component carrier physical resource in a upstream components carrier wave, the intermediate physical resource of this component carrier is used for the transmitting physical Uplink Shared Channel, this channel is used to carry upstream data, the present invention has utilized said structure, reset the index of Physical Resource Block in the upstream components carrier wave, made the ACK/NACK feedback information of different up-link carriers correspond on the not same physical mixing retransmission indicating chanel.

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

After the rearrangement, visualized result is to make the index of at least two Physical Uplink Control Channel corresponding physical Resource Block in the upstream components carrier wave have a difference at least.Preferably, can make at least two Physical Uplink Control Channel original position corresponding physical Resource Block index differences in the upstream components carrier wave.As long as guarantee 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 be so that the Physical Uplink Shared Channel in the two upstream components carrier waves also can stagger, promptly, make that the index of Physical Resource Block of Your Majesty row component carrier is different with the corresponding relation of the index of PHICH corresponding physical Resource Block, and at least one is different with the corresponding relation of the index of PHICH corresponding physical Resource Block from the index of the Physical Resource Block of upstream components carrier wave, thereby avoids occurring the problem of index conflict.Described Your Majesty's row component carrier is meant the upstream components carrier wave of LTE R8 terminal correspondence; Described is the upstream components carrier wave of non-LTE R8 terminal correspondence from the upstream components carrier wave.

Preferably, the index of one of can be in the following ways determining physical mixing retransmission indicating chanel in the 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) index, side-play amount and the Physical Resource Block that uplink transmission data is distributed according to the upstream components carrier wave is that the index of PUSCH and the cyclic shift amount of corresponding demodulated reference signal determine that side-play amount can be disposed by high-level signaling.

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

Preferably, the described method of the Physical Resource Block in the upstream components carrier wave that rearranges is for to carry out whole cyclic shift with continuous ascending physical signal Resource Block.Preferably, when the 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 then the cyclic shift amount of each upstream components carrier wave is Perhaps

Perhaps

Perhaps

P wherein _iBe upstream components carrier wave i corresponding physical Resource Block quantity; Perhaps dispose this cyclic shift amount by high-level signaling.

The described method that rearranges the Physical Resource Block in the 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, with two groups of displacement position.Group technology can be even division, and, guarantee that the Physical Resource Block index in each group is continuous, if Physical Resource Block adds up to odd number, then the Physical Resource Block that can not on average divide is divided to any one group.

Preferably, when rearranging the index of the Physical Resource Block in the upstream components carrier wave, can be earlier rearrange from the index of the Physical Resource Block of upstream components carrier wave, Physical Resource Block with all upstream components carrier waves is together in series again, and according to former head's upstream components carrier wave, the back is from the order series connection of upstream components carrier wave, and the purpose of series connection is that conflict appears in the index of avoiding being compiled.

Preferably, described Your Majesty row component carrier is meant the upstream components carrier wave of LTE R8 terminal correspondence, perhaps, described Your Majesty's row component carrier and from the upstream components carrier wave by base station configuration.

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

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

Increase the PHICH resource on LTE R8 basis, newly-increased resource is k a times of LTE R8 PHICH reserved resource, and k is a positive number.Wherein, described LTE R8 PHICH reserved resource can be the reserved resource of the current configuration of LTE R8, also can be the maximum reserved resource that LTE R8 can dispose, perhaps, and the maximum reserved resource that LTE R8 FDD system can dispose; The value of k can be a fixed value, also can dispose by signaling, can determine with reference to number of users.

Preferably, newly-increased resource is used to carry the feedback information from the 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 the newly-increased PHICH resource, each PHICH group can be three continuous among CCE REG corresponding to three the resource groups (REG) among the CCE, also can be equally spaced three REG.

Be described in detail below in conjunction with the implementation procedure of example the embodiment of the invention.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.

Suppose that n upstream components carrier wave (c arranged ₀, c ₁..., c _N-1) corresponding downlink component carrier (d ₀), upstream components carrier wave c wherein ₀Be Your Majesty's row component carrier, upstream components carrier wave c _i(i ≠ 0) is from the upstream components carrier wave, the upstream components carrier wave that promptly non-LTE R8 terminal can insert; 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 last distribution is r _i

Embodiment 1

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

The PHICH resource is by (n _PHICH ^Group, n _PHICH ^Seq) determine n _PHICH ^GroupBe the group number of PHICH, n _PHICH ^SeqBe the index of orthogonal sequence in the group, define 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 among the DCI format 0;

N _SF ^PHICHIt is the spreading factor of PHICH modulation;

The Physical Resource Block that distributes when ascending resource is at upstream components carrier wave c ₀When last,

I _{PRB_RA} ^Lowest_indexBe the minimum index r of the Physical Resource Block of ascending resource distribution _i

The Physical Resource Block that distributes when ascending resource is at upstream components carrier wave c _iWhen go up (i ≠ 0),

Wherein, cyclic shift amount shift is

Perhaps,

Perhaps,

Perhaps,

The maximum of described n upstream components carrier wave (perhaps minimum) bandwidth is a p Resource Block, p _iBandwidth for i Physical Resource Block from the upstream components carrier wave.

Embodiment 2

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

The PHICH resource is by (n _PHICH ^Group, n _PHICH ^Seq) determine n _PHICH ^GroupBe the group number of PHICH, n _PHICH ^SeqBe the index of orthogonal sequence in the group, define 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 among the DCI format 0;

N _SF ^PHICHIt is the spreading factor of PHICH modulation;

The Physical Resource Block that distributes when ascending resource is at upstream components carrier wave c ₀When last,

I _{PRB_RA} ^Lowest_indexBe the minimum index r of the Physical Resource Block of ascending resource distribution _i

The Physical Resource Block that distributes when ascending resource is at upstream components carrier wave c _iWhen go up (i ≠ 0),

Wherein, cyclic shift amount shift is

Perhaps,

Perhaps,

Perhaps,

The maximum of described n upstream components carrier wave (perhaps minimum) bandwidth is a p Resource Block, p _iBandwidth for i Physical Resource Block from the upstream components carrier wave.Offest is more than or equal to zero.

Embodiment 3

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

The PHICH resource is by (n _PHICH ^Group, n _PHICH ^Seq) determine n _PHICH ^GroupBe the group number of PHICH, n _PHICH ^SeqBe the index of orthogonal sequence in the group, define 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 among the DCI format 0;

N _SF ^PHICHIt is the spreading factor of PHICH modulation;

The Physical Resource Block that distributes when ascending resource is at upstream components carrier wave c ₀When last,

I _{PRB_RA} ^Lowest_indexBe the minimum index r of the Physical Resource Block of ascending resource distribution _i

The Physical Resource Block that distributes when ascending resource is at upstream components carrier wave c _iWhen go up (i ≠ 0),

Cyclic shift amount shift is

Perhaps,

Perhaps,

Perhaps,

The maximum of described n upstream components carrier wave (perhaps minimum) bandwidth is a p Resource Block, wherein, and S _iBe first Physical Resource Block index position in all upstream components carrier wave Physical Resource Block of current upstream components carrier wave,

Perhaps, s _i=p * (i-1), perhaps, s _i=p _i* (i-1), and perhaps, s _iBe the high-level signaling configuration.

Embodiment 4

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

Newly-increased resource is as the feedback information of carrying from the upstream components carrier wave, the feedback information of the upstream components carrier wave of promptly non-LTE R8 terminal correspondence.

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

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

It can be three continuous among CCE REG that a PHICH organizes pairing 3 REG, for example: and 1,2,3, perhaps, 4,5,6, perhaps, 7,8,9; Also can be equally spaced three REG, for example: 1,4,7, perhaps, 2,5,8, perhaps, 3,6,9.

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

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

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

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

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

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

To sum up, according to the abovementioned embodiments of the present invention, guarantee the work of UE in the spectrum aggregation mode of LTE-A, helped the compatibility of LTE-Advanced and LTE Release-8, helped improving the dispatching flexibility and the throughput of LTE-Advanced system.

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

Be the preferred embodiments of the present invention only below, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (15)

1. the sending method of a physical mixing retransmission indicating chanel is applicable to the scene of the corresponding downlink component carrier of a plurality of upstream components carrier waves, and described method comprises:

Rearrange the index of the Physical Resource Block in the upstream components carrier wave, determine the resource of physical mixing retransmission indicating chanel in the downlink component carrier (PHICH) according to the described index that rearranges; The 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 the downlink component carrier:

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

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

(3) determine according to 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 the cyclic shift amount of 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, perhaps, distribute the highest index of Physical Resource Block.

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

The described method of the Physical Resource Block in the upstream components carrier wave that rearranges is for to carry out whole cyclic shift with continuous ascending physical signal Resource Block.

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

When the 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 then the cyclic shift amount of each upstream components carrier wave is

Perhaps

Perhaps Perhaps

P wherein _iBe upstream components carrier wave i corresponding physical Resource Block quantity; Perhaps dispose 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 the 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, with two groups of displacement position.

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

Group technology can be even division, and, guarantee that the Physical Resource Block index in each group is continuous, if Physical Resource Block adds up to odd number, then 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,

When rearranging the index of the Physical Resource Block in the upstream components carrier wave, can be earlier 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, the back is 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 to one or more upstream components carrier wave from the upstream components carrier wave rearranges.

9. the sending method of a physical mixing retransmission indicating chanel comprises,

Increase physical mixing retransmission indicating chanel (PHICH) resource on LTE R8 basis, newly-increased resource is k a times of PHICH reserved resource among the LTE R8, and wherein, k is a positive number.

10. method as claimed in claim 9 is characterized in that,

The PHICH reserved resource is the reserved resource of the current configuration of LTE R8 among the described LTE R8, perhaps, and the configurable maximum reserved resource of LTE R8, perhaps, the configurable maximum reserved resource of LTE R8FDD system.

11. method as claimed in claim 9 is characterized in that,

Described newly-increased resource is used to carry the feedback information from the upstream components carrier wave.

12. method as claimed in claim 9 is characterized in that,

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

13. method as claimed in claim 12 is characterized in that,

In the described newly-increased PHICH resource, each PHICH organizes corresponding to one as 3 the resource groups (REG) among the CCE of PHICH group; Described 3 REG are 3 continuous among described CCE REG, perhaps, are equally spaced 3 REG.

14. the dispensing device of a physical mixing retransmission indicating chanel comprises the index determining unit, and transmitting element, wherein:

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

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

15. the receiving system of a physical mixing retransmission indicating chanel comprises the index determining unit, and receiving element, wherein:

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

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

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