CN102088776A - Method and equipment for scheduling feedback information resources - Google Patents

Abstract

The invention provides a method for scheduling feedback information resources. The method comprises the following steps: after receiving UL SPS (uplink semi-persistent scheduling) information in the current DL CC (downlink component carrier) sent by a base station (BS), a terminal transmits a UL SPS PUSCH (physical uplink shared channel) on a UL Primary CC according to transmission attributes indicated in the UL SPS scheduling information; if the carrier indicator field (CIF) of the current DL CC is available, a DMRS (demodulation reference signal) is determined according to a CS (cyclic shift) value of the DMRS indicated by the information field (INF) of the CIF or a DMRS CS value indicated by a DMRS CS INF; and the terminal monitors a corresponding PHICH (physical hybrid-automatic repeat request (ARQ) indicator channel) thereof on a DL ACK (acknowledgement)/NAK (negative acknowledgment) feedback sub-frame corresponding to the UL SPS PUSCH, and PHICH resources are calculated according to a resource indication INF in the UL SPS information and the corresponding DMRS CS value. The technical scheme provided by the invention has the advantages that a PHICH resource mapping method in the existing LTE (long term evolution) R8 version is not changed, reliability of a UL SPS PDCCH (physical downlink control channel) is not affected, and PHICH resource conflict can be effectively avoided in the case of UL SPS transmission.

Description

A kind of method and apparatus of scheduling of resource of feedback information

Technical field

The present invention relates to moving communicating field, particularly, the present invention relates to a kind of method and apparatus of scheduling of resource of feedback information.

Background technology

Move the developing direction that becomes modern communication technology with the broadband, 3GPP (3rd GenerationPartnership Project, third generation partner program) be devoted to the evolution of 3G system, target is development 3GPP wireless access technology towards high data rate, lowly postpones and optimize the evolution of packet data application direction.3GPP is at LTE (Long Term Evolution, Long Term Evolution) and LTE-A (LongTerm Evolution-Advanced, Long Term Evolution is senior) in the system, for PUSCH (PhysicalUplink Shared Channel, Physical Uplink Shared Channel) transmission of feedback information ACK/NACK is to be undertaken by PHICH (Physical hybrid-ARQ Indicator Channel, the automatic request retransmission indicating channel of physical mixed).Usually, the resource of PHICH is to (n by a parameter _PHICH ^Group, n _PHICH ^Seq) indication, wherein n _PHICH ^GroupBe the numbering of PHICH group, n _PHICH ^SeqBe the index of orthogonal sequence, these two parameters can calculate by the aggregate information of resource allocation information in the schedule information of PUSCH and DMRS sequence.

For the ease of understanding the present invention, below the related definition of the PHICH in the LTE system is done simple the introduction.

PHICH is used to carry the feedback information ACK/NACK of uplink service.The resource indication of a PHICH channel is main passes through a parameter to (n _PHICH ^Group, n _PHICH ^Seq) indication, wherein n _PHICH ^GroupBe the numbering of PHICHgroup, n _PHICH ^SeqIt is the index of orthogonal sequence.The mode that the transmission of PHICH channel adopts frequency division+sign indicating number to divide is transmitted.

The notion of PHICH group refers to the set of one group of RE (Resource Element, Resource Unit), can transmit a plurality of PHICH channels in the set of this RE, and each PHICH interchannel is distinguished by orthogonal sequence.For conventional CP (Normal Cyclic Prefix), 8 orthogonal sequences are arranged, among a PHICH group 8 PHICH channels are arranged so.For expansion CP (Extended Cyclic Prefix), 4 orthogonal sequences are arranged, among a PHICH group 4 PHICH channels are arranged so.

For the FDD system, frame structure Class1 just, PHICH fixes the position in all subframes, and provides by following expression:

The N in the formula wherein _g{ 1/6,1/2,1,2} is provided by high level ∈, index n _PHICH ^GroupNumbering be to N from 0 _PHICH ^Group-1.

For the TDD system, just the frame structure type 2, and the number of PHICH group can be different in each descending sub frame, and pass through m _iN _PHICH ^GroupProvide, wherein m _iProvide N by following table 1 _PHICH ^GroupMake by the expression formula (1) that provides in the top frame structure Class1 and calculate index n _PHICH ^GroupNumbering be to m from 0 _iN _PHICH ^Group-1.

Table 1: m in the frame structure type 2 _iThe definition of the factor

When UE sends upstream data at PUSCH, carry among the PHICH of its feedback information ACK/NACK in descending sub frame.For the PUSCH transmission of dispatching in subframe n, its ACK/NACK feedback information is at subframe n+k _PHICHIn the PHICH resource of correspondence in transmit the k of FDD system wherein _PHICH=4, for the k of TDD system _PHICHProvide by following table 2.

The k of table 2 TDD system _PHICHConfiguration

1			4	6				4	6
											2			6					6
3			6	6	6
											4			6	6
5			6
											6			4	6	6			4	7

The resource of PHICH channel is that the cyclic shift of the up DMRS (Demodulation Reference signal, demodulated reference signal) of PRB sequence number minimum in the resource according to the PUSCH that indicates in the PUSCH schedule information in the DCI form 0 of PDCCH and the indication of 3 bits determines jointly.

The PHICH resource by a parameter to (n _PHICH ^Group, n _PHICH ^Seq) indication, the concrete computing formula of these two parameters is:

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

Wherein, n _DMRSBe the index value of the DMRS cyclically shifted sequences that uses in the uplink corresponding, by bit information mapping in the DMRS territory among the DCI format 0, shown in specific as follows the table 4 with PHICH; N _SF ^PHICHIt is the spreading factor size of the PHICH modulation of definition in 3GPP TS 36.211; I _{PRB_RA} ^Lowest_indexIt is the minimum PRB sequence number of up PUSCH transmission; N _PHICH ^GroupIt is PHICH group number by the high-level signaling configuration; When TDD UL/DL (Time Division DuplexUplink/Downlink, time division duplex is up/descending) is configured to 0 pattern and PUSCH when subframe 4 or 9 carryings, I _PHICHBe 1, otherwise be 0 that TDD UL/DL configuration mode is as shown in table 3.

Table 3 TDD uplink-downlink configuration

Wherein the D in the form represents descendingly, and U represents up, and S represents special subframe, has provided detailed explanation in 3GPP TS36.211.

Table 4 n _DMRSBit mapping relations with DMRS territory among the DCI format 0

The CS of DCI format 0 DMRS (Cyclic Shift, cyclic shift)	n DMRS
		000	0
001	1
		010	2
011	3
		100	4
101	5
		110	6
111	7

In above-mentioned formula, n _PHICH ^SeqWith N _SF ^PHICHPhysical relationship as shown in table 5.

The frequency expansion sequence of table 5 PHICH [w (0) ... w (N _SF ^PHICH-1)]

Yet, considering the simultaneous scene of a plurality of users, may there be the conflict of resource in each user's PHICH.

For example, for the LTE system, be configured to bandwidth 20MHz, have under the condition of 100PRB, Ng=1 is under conventional CP (Normal Cyclic Prefix) situation, if having 4 users, 4 users' I _{PRB_RA} ^Lowest_indexAnd n _DMRSValue is as shown in table 6, and according to the computation rule of existing system, 4 users' PHICH resource all is (1,1), and the conflict of PHICH resource will take place like this.

The example of table 6 PHICH resource contention

For the LTE-A system, for supporting the system bandwidth wideer,, need be called member carrier again by with a plurality of LTE carrier waves such as 100MHz than LTE system, couple together use.

Determined to introduce in the LTE-A system notion of Primary CC (PrimaryComponent Carrier, main member carrier) during 3GPP discusses at present, each user need dispose a DL PrimaryCC and a UL Primary CC.Determine that simultaneously a UE has only a UL SPS (Semi-Persistent Scheduling, semi-persistent scheduling) transmission and a DL SPS transmission at most.

What mainly consider for the problem of PHICH resource contention is under the UL SPS transmission situation, because CS (the Cyclic Shift of the DMRS of the transmission of the present UL SPS of definition in present LTE, cyclic shift) be 0, referring to the description in 9.2 chapters and sections among the 3GPP TS 36.213, can't carry out avoiding of PHICH resource contention by the mode of DMRSCS scheduling.If in LTE-A, continue to use the definition in the existing LTE, as the UL SPS of two UE of a DL CC scheduling, if these two UL SPS are positioned at different UL CC, its I of while _{PRB_RA} ^Lowest_indexAll be 0, the PHICH resource will clash so.

Therefore be necessary to propose a kind of technical scheme,,, solve the problem that the ACK/NACK conflict of the PUSCH under up SPS transmission situation is avoided by reasonable distribution PHICH resource when in the system during a plurality of field feedback.

Summary of the invention

Purpose of the present invention is intended to solve at least the problem of the ACK/NACK resource contention of the PUSCH under the up SPS transmission situation in one of above-mentioned technological deficiency, particularly resolution system, thereby can be to PHICH resource reasonable distribution, optimization system performance.

In order to achieve the above object, one aspect of the present invention has proposed a kind of method of scheduling of resource of feedback information, may further comprise the steps:

After the UL SPS schedule information among the current DL CC that terminal reception base station sends, described terminal is transmitted UL SPSPUSCH according to the transmission property of indicating in the UL SPS schedule information on UL Primary CC, if but the carrier wave of the current DL CC indication territory CIF time spent, the DMRS signal is determined according to the DMRS CS value of CIF information field indication or is determined according to the DMRS CS value of DMRS CS information field indication;

Described terminal is monitored its corresponding PHICH channel in the descending ACK/NAK feedback subframe of described UL SPS PUSCH correspondence, and described PHICH channel resource calculates according to resource indication information territory in the UL SPS schedule information and corresponding described DMRS CS value.

The present invention has also proposed a kind of method of scheduling of resource of feedback information on the other hand, may further comprise the steps:

The base station is dispatched described terminal and is carried out UL SPS transmission to terminal transmits information;

Described base station sends the ACK/NAK feedback information of UL SPS PUSCH on corresponding PHICH channel resource to described terminal, described PHICH channel resource calculates according to resource indication information territory in the UL SPS schedule information and corresponding described DMRS CS value, if but the carrier wave of the current DLCC of the described terminal indication territory CIF time spent, described DMRS signal is determined according to the DMRS CS value of CIF information field indication or is determined according to the DMRS CS value of DMRS CS information field indication.

The present invention has also proposed a kind of terminal on the other hand, comprises receiver module, computing module and sending module,

Described receiver module, be used for receiving the UL SPS schedule information of the current DL CC that the base station sends after;

Described sending module, the transmission property that is used for indicating according to UL SPS schedule information on UL Primary CC transmits UL SPS PUSCH, if but the carrier wave of the current DL CC indication territory CIF time spent, the DMRS signal is determined according to the DMRS CS value of CIF information field indication or is determined according to the DMRS CS value of DMRS CS information field indication;

Described computing module, be used to calculate corresponding PHICH channel resource, described PHICH channel resource calculates according to resource indication information territory in the UL SPS schedule information and corresponding described DMRS CS value, and described receiver module is monitored the ACK/NAK feedback subframe of described UL SPS PUSCH at described PHICH channel resource.

The present invention has also proposed a kind of base station on the other hand, comprises sending module, resource distribution module and receiver module,

Described sending module is used for to terminal transmits information, dispatches described terminal and carries out UL SPS transmission;

Described receiver module is used for receiving the UL SPS PUSCH of the transmission property transmission that described terminal indicates according to UL SPS schedule information on UL Primary CC;

Described resource distribution module, be used to the corresponding PHICH channel resource of described terminal distribution, described sending module sends the ACK/NAK feedback information of UL SPS PUSCH on described PHICH channel resource to described terminal, described PHICH channel resource calculates according to resource indication information territory in the UL SPS schedule information and corresponding described DMRS CS value, if but the carrier wave of the current DL CC of the described terminal indication territory CIF time spent, described DMRS signal is determined according to the DMRSCS value of CIF information field indication or is determined according to the DMRS CS value of DMRS CS information field indication.

The technical scheme that proposes according to the present invention has solved the problem of the ACK/NACK resource contention of the PUSCH under the up SPS transmission situation in the system, thereby can be to PHICH resource reasonable distribution, optimization system performance.The technique scheme that the present invention proposes, do not change in the existing LTE R8 version about the PHICH method for mapping resource, and do not influence among the R8 reliability for the PDCCH of UL SPS scheduling, can effectively carry out the avoiding of PHICH resource contention of UL SPS transmission simultaneously.In addition, the technical scheme that the present invention proposes, very little to the change of existing system, can not influence the compatibility of system, and realize simple, efficient.

Aspect that the present invention adds and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.

Description of drawings

Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:

Fig. 1 is a kind of CIF indication schematic diagram;

Fig. 2 is a PHICH resource reservation schematic diagram;

The method flow diagram of the scheduling of resource of a kind of feedback information of Fig. 3 embodiment of the invention;

The method flow diagram of the scheduling of resource of a kind of feedback information of Fig. 4 another embodiment of the present invention;

Fig. 5 is the structural representation of embodiment of the invention terminal;

Fig. 6 is the structural representation of embodiment of the invention base station;

Fig. 7 is the schematic diagram of a kind of PDCCH indication PUSCH;

Fig. 8 is the schematic diagram of another kind of PDCCH indication PUSCH.

Embodiment

Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment that is described with reference to the drawings is exemplary, only is used to explain the present invention, and can not be interpreted as limitation of the present invention.

For the ease of understanding the present invention, at first the background context among the present LTE-A is done simple the introduction.

Conclusion about PDCCH control comprises at present: PDCCH need support to stride carrier dispatching; Striding carrier dispatching realizes by CIF (Carrier Indicator Field, the carrier wave indication territory) information field that increases by one 3 bit in DCI; Whether the CIF information field appears, this be one based on UE, be based on simultaneously the member carrier configuration again; There is not the DCI of CIF information field can only dispatch PDSCH of this carrier wave or the PUSCH in the uplink member carrier related with this downlink member carrier.

For specifying as shown in Figure 1 of CIF: system configuration 3 uplink member carrier and three downlink member carriers, wherein UL CC1 and DL CC1, UL CC2 and DL CC2, UL CC3 and DL CC3 have the incidence relation of Cell-specific respectively, as shown in the figure, user has disposed DL CC1 and DL CC2 as its PDCCH CC, DL CC1 can only dispatch DL CC1 and ULCC1, and DL CC2 can dispatch DL CC2, DL CC3, ULCC2 and ULCC3.So, for the active user, DL CC1 does not support to stride the member carrier scheduling, do not need the CIF information field, be not the member carrier of a CIF enable, DL CC2 need support to stride the member carrier scheduling, so DL CC2 is the member carrier of a CIF enable.

At present in the discussion of LTE-A, the transmission of having determined PHICH is identical with the CC of transmission uplink scheduling information, as shown in Figure 2, the PUSCH transmission of DL CC1 scheduling UL CC2, transmit in the PHICH resource of ACK/NACK feedback for PUSCH on the UL CC2 so by DL CC1, the mode of PHICH resource reservation is identical with LTE simultaneously, and the mode that keeps the DMRS CS scheduling in the existing LTE is carried out the conflict processing of PHICH resource.

Therefore, (Primary Component Carrier: notion main member carrier), each user need dispose a DL primary CC and a UL primary CC to have determined to introduce in the LTE-A system Primary CC during 3GPP discusses at present.Determine that simultaneously a UE has only a UL SPS transmission and a DL SPS transmission at most.

What mainly consider for the problem of PHICH resource contention is under the UL SPS transmission situation, because the CS of the DMRS of the transmission of the present UL SPS of definition is 0 in LTE at present, can't carry out avoiding of PHICH resource contention by the mode of DMRS CS scheduling.If in LTE-A, continue to use the definition in the existing LTE, as the UL SPS of two UE of a DL CC scheduling, if these two UL SPS are positioned at different UL CC, its I of while _{PRB_RAlowest_index}All be 0, the PHICH resource will clash so, at present for the solution of this situation mainly by following three kinds:

Method one: carry out avoiding of PHICH resource contention by the PRB resource that scheduling UL SPS takies, this meeting influences the flexibility of UL SPS scheduling to a certain extent;

Method two: under state of carrier aggregation, couple together by PRB numbering each member carrier, for example: CC1 has 100 PRB, CC2 has 100 PRB, original PRB numbering is each member carrier independent numbering, it is respectively 0～99, if carrier index couples together, the PRB of CC1 is numbered 0～99 so, the PRB of CC2 is numbered 100～199, avoiding of PRB resource can not effectively be carried out in this as can be seen position that has just changed the resource number of PHICH conflict from formula (2);

Method three: change the definition in the existing LTE about UL SPS schedule information, make that its DMRS CS can not be 0, can realize that so also the PHICH resource contention avoids, but can make that so on the one hand LTE and LTE-A are incompatible, can have influence on the reliability of UL SPS schedule information on the other hand.

Do not change in the existing LTE R8 version about the PHICH method for mapping resource, and the reliability that does not influence the PDCCH that dispatches for UL SPS among the R8, the conflict of PHICH resource in the time of can effectively avoiding simultaneously UL SPS transmission, the present invention proposes solution of the above problems, its core thinking is:

The UL SPS transmission of a UE of restriction can only be transmitted on its UL primary CC, what mainly consider is that a UE has only a UL SPS transmission and a DL SPS transmission at most, a UE must guarantee that at connected state a pair of DL/UL primary CC is arranged simultaneously, the UL SPS transmission of a UE of restriction can only be transmitted on its UL primary CC, can not have influence on the transmission configuration of UL SPS because of the change of PUSCH CC set;

If it is CIF enable that current UE is used to dispatch the DL CC of UL SPS transmission, following operation is arranged so:

Mode A: 3 bit CIF information fields in its UL SPS schedule information are used to indicate the DMRS CS of current ULSPS transmission, thereby avoid the PHICH resource contention.This is because known its UL Primary CC of user, the member carrier numbering of CIF information field indication is repetition or inoperative information in the UL SPS schedule information so, the indication of DMRS CS also is the information of 3 bits simultaneously, and the CIF that therefore can reuse its 3 bit indicates the DMRS CS of current UL SPS transmission;

Mode B: 3 bit CIF information fields in its UL SPS schedule information are made as fixing value, for example: " 111 ", testing conditions as UL SPS schedule information, the value that DMRS CS indication information territory in original its UL SPS schedule information can not be fixed as DMRS CS in " 000 " is variable, need not be fixed as " 000 ".

Therefore, in end side:

If mode A, after the ULSPS schedule information of the SPS-RNTI scrambling of terminal in receiving current DL CC, if current DL CC is CIF enable, UE transmits UL SPS PUSCH according to the transmission property of indicating in the UL SPS schedule information on UL PrimaryCC so, transmission property comprises resource indication information, modulation system etc., and its DMRS signal is determined according to DMRS CS indication in the CIF information field.Terminal is monitored corresponding PHICH channel in follow-up ACK/NAK feedback subframe for this UL SPS PUSCH, its PHICH channel resource need be according to the DMRS CS information calculations of indicating in resource indication information territory in the UL SPS schedule information and the CIF information field, according to the computational methods in the formula 2, n _DMRSValue be value according to the DMRS CS of CIF information field indication.

If mode B, after the ULSPS schedule information of the SPS-RNTI scrambling of terminal in receiving current DL CC, if current DL CC is CIF enable, UE transmits UL SPS PUSCH according to the transmission property of indicating in the UL SPS schedule information on UL primaryCC so, transmission property comprises resource indication information, modulation system etc., and its DMRS signal is determined according to DMRS CS indication in the DMRS CS information field.Terminal is monitored corresponding PHICH channel in follow-up ACK/NAK feedback subframe for this UL SPS PUSCH, its PHICH channel resource need be according to the DMRS CS information calculations of indicating in resource indication information territory in the UL SPS schedule information and the DMRS CS information field, according to the computational methods in the formula 2, the fixing value of CIF information field wherein, for example: " 111 " are used for the detection of the PDCCH of UL SPS schedule information.

In base station side:

If mode A, base station side is when the UL SPS of scheduling UE transmits, if it is CIF enable that current UE is used to dispatch the DL CC of UL SPS, CIF information field in the then current UL SPS schedule information is used to indicate the DMRS CS of UL SPSPUSCH, the base station is used for the PHICH resource of the ACK/NACK feedback subframe of current UL SPS PUSCH according to the DMRS CS information calculations of indicating in resource indication information territory in the current UL SPS schedule information and the CIF information field simultaneously, according to the computational methods in the formula 2, n _DMRSValue be value according to the DMRS CS of CIF information field indication.The concrete value of the DMRS CS that indicates in its CIF information field need consider that the PHICH resource contention avoids.

If mode B, base station side is when the UL SPS of scheduling UE transmits, if it is CIF enable that current UE is used to dispatch the DL CC of UL SPS, CIF information field in the then current UL SPS schedule information is made as fixing value, for example: " 111 ", its DMRS CS information field is used to indicate the DMRS CS of UL SPSPUSCH, simultaneously the base station is used for the PHICH resource of the ACK/NACK feedback subframe of current UL SPS PUSCH according to the DMRS CS information calculations of indicating in resource indication information territory in the current UL SPS schedule information and the DMRS CS information field, according to the computational methods in the formula 2.The concrete value of the DMRS CS that indicates in its DMRS information field need consider that the PHICH resource contention avoids.

As shown in Figure 3, the method flow diagram for the scheduling of resource of a kind of feedback information of the embodiment of the invention may further comprise the steps:

S110: after terminal receives UL SPS schedule information, transmission UL SPSPUSCH on UL Primary CC.

In step S110, after the UL SPS schedule information among the current DL CC that terminal reception base station sends, terminal is transmitted UL SPS PUSCH according to the transmission property of indicating in the UL SPS schedule information on UL Primary CC, if but the carrier wave of the current DL CC indication territory CIF time spent, the DMRS signal is determined according to the DMRS CS value of CIF information field indication or is determined according to the DMRS CS value of DMRS CS information field indication.

S120: terminal is monitored its corresponding PHICH channel in the descending ACK/NAK feedback subframe of UL SPS PUSCH correspondence.

In step S120, terminal is monitored its corresponding PHICH channel in the descending ACK/NAK feedback subframe of UL SPS PUSCH correspondence, and the PHICH channel resource calculates according to resource indication information territory in the UL SPS schedule information and corresponding D MRS CS value.

Particularly, the PHICH channel resource calculates according to resource indication information territory in the UL SPS schedule information and corresponding D MRS CS value, if but the CIF time spent of the current DL CC of terminal, the DMRS cyclic shift value n that uses in the uplink of its PHICH correspondence _DMRSIndicating mode comprises:

When the DMRS signal according to the CIF information field in DMRS CS indication when determining, the DMRS cyclic shift value n that uses in the uplink of PHICH correspondence _DMRSIt is DMRS CS value according to the indication of CIF information field; Perhaps

When the DMRS signal is determined according to the DMRS CS value of DMRS CS information field indication, the DMRS cyclic shift value n that uses in the uplink of PHICH correspondence _DMRSBe DMRS CS value, and the CIF information field is fixed value, is used for the detection of UL SPS schedule information PDCCH according to DMRS CS information field indication.

Particularly, the PHICH channel resource calculates and comprises:

The PHICH channel resource by a parameter to (n _PHICH ^Group, n _PHICH ^Seq) indication,

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

N wherein _SF ^PHICHBe the spreading factor size of PHICH modulation, N _PHICH ^GroupBe PHICH group number by the high-level signaling configuration, when TDD UL/DL is configured to 0 pattern and PUSCH in subframe 4 or 9 carryings, I _PHICHBe 1, otherwise be 0,

Expression is to I _{PRB_RA} ^Lowest_index/ N _PHICH ^GroupRound downwards.

As shown in Figure 4, the method flow diagram for the scheduling of resource of a kind of feedback information of another embodiment of the present invention may further comprise the steps:

S210: the base station is to terminal transmits information, and UL SPS transmission is carried out in scheduling.

S220: the base station sends the ACK/NAK feedback information of UL SPS PUSCH on corresponding PHICH channel resource to terminal.

In step S220, the base station sends the ACK/NAK feedback information of UL SPSPUSCH on corresponding PHICH channel resource to terminal, the PHICH channel resource calculates according to resource indication information territory in the UL SPS schedule information and corresponding D MRS CS value, if but the carrier wave of the current DL CC of the terminal indication territory CIF time spent, the DMRS signal is determined according to the DMRS CS value of CIF information field indication or is determined according to the DMRS CS value of DMRS CS information field indication.

Particularly, the PHICH channel resource calculates according to resource indication information territory in the UL SPS schedule information and corresponding D MRS CS value, if but the CIF time spent of the current DL CC of terminal, the DMRS cyclic shift value n that uses in the uplink of its PHICH correspondence _DMRSIndicating mode comprises:

When the DMRS signal according to the CIF information field in DMRS CS indication when determining, the DMRS cyclic shift value n that uses in the uplink of PHICH correspondence _DMRSIt is DMRS CS value according to the indication of CIF information field; Perhaps

When the DMRS signal is determined according to the DMRS CS value of DMRS CS information field indication, the DMRS cyclic shift value n that uses in the uplink of PHICH correspondence _DMRSBe DMRS CS value, and the CIF information field is fixed value, is used for the detection of UL SPS schedule information PDCCH according to DMRS CS information field indication.

Particularly, the PHICH channel resource calculates and comprises:

The PHICH channel resource by a parameter to (n _PHICH ^Group, n _PHICH ^Seq) indication,

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

N wherein _SF ^PHICHBe the spreading factor size of PHICH modulation, N _PHICH ^GroupBe PHICH group number by the high-level signaling configuration, when TDD UL/DL is configured to 0 pattern and PUSCH in subframe 4 or 9 carryings, I _PHICHBe 1, otherwise be 0,

Expression is to I _{PRB_RA} ^Lowest_index/ N _PHICH ^GroupRound downwards.

Corresponding to said method, as shown in Figure 5, the invention allows for a kind of terminal 100, comprise receiver module 110, computing module 120 and sending module 130.

Wherein, after receiver module 110 is used for receiving the UL SPS schedule information of the current DL CC that the base station sends.

Sending module 130 is used for indicating according to UL SPS schedule information on UL Primary CC transmission property transmits UL SPS PUSCH, if but the carrier wave of the current DL CC indication territory CIF time spent, the DMRS signal is determined according to the DMRS CS value of CIF information field indication or is determined according to the DMRS CS value of DMRS CS information field indication.

Computing module 120 is used to calculate corresponding PHICH channel resource, the PHICH channel resource calculates according to resource indication information territory in the UL SPS schedule information and corresponding D MRS CS value, and receiver module 110 is monitored the ACK/NAK feedback subframe of UL SPS PUSCH at the PHICH channel resource.

Particularly, computing module 120 calculates the PHICH channel resource according to resource indication information territory in the UL SPS schedule information and corresponding D MRS CS value, but if the CIF time spent of the current DL CC of terminal, the DMRS cyclic shift value n that uses in the uplink of its PHICH correspondence _DMRSIndicating mode comprises:

When the DMRS signal according to the CIF information field in DMRS CS indication when determining, the DMRS cyclic shift value n that uses in the uplink of PHICH correspondence _DMRSIt is DMRS CS value according to the indication of CIF information field; Perhaps

When the DMRS signal is determined according to the DMRS CS value of DMRS CS information field indication, the DMRS cyclic shift value n that uses in the uplink of PHICH correspondence _DMRSBe DMRS CS value, and the CIF information field is fixed value, is used for the detection of UL SPS schedule information PDCCH according to DMRS CS information field indication.

Particularly, computing module 120 calculating PHICH channel resources comprise:

The PHICH channel resource by a parameter to (n _PHICH ^Group, n _PHICH ^Seq) indication,

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

N wherein _SF ^PHICHBe the spreading factor size of PHICH modulation, N _PHICH ^GroupBe PHICH group number by the high-level signaling configuration, when TDD UL/DL is configured to 0 pattern and PUSCH in subframe 4 or 9 carryings, I _PHICHBe 1, otherwise be 0,

Expression is to I _{PRB_RA} ^Lowest_index/ N _PHICH ^GroupRound downwards.

Corresponding to said method, as shown in Figure 6, the invention allows for a kind of base station 200, comprise sending module 210, resource distribution module 220 and receiver module 230.

Sending module 210 is used for to terminal transmits information, and dispatch terminal carries out UL SPS transmission.

Receiver module 230 is used for the UL SPS PUSCH of the transmission property transmission that receiving terminal indicates according to UL SPS schedule information on UL Primary CC.

Resource distribution module 220 is used to the corresponding PHICH channel resource of terminal distribution, sending module 210 sends the ACK/NAK feedback information of UL SPS PUSCH on the PHICH channel resource to terminal, the PHICH channel resource calculates according to resource indication information territory in the UL SPS schedule information and corresponding D MRS CS value, if but the carrier wave of the current DL CC of the terminal indication territory CIF time spent, the DMRS signal is determined according to the DMRS CS value of CIF information field indication or is determined according to the DMRS CS value of DMRS CS information field indication.

Particularly, resource distribution module 220 calculates the PHICH channel resource according to resource indication information territory in the UL SPS schedule information and corresponding D MRS CS value, but if the CIF time spent of the current DL CC of terminal, the DMRS cyclic shift value n that uses in the uplink of its PHICH correspondence _DMRSIndicating mode comprises:

When the DMRS signal according to the CIF information field in DMRS CS indication when determining, the DMRS cyclic shift value n that uses in the uplink of PHICH correspondence _DMRSIt is DMRS CS value according to the indication of CIF information field; Perhaps

When the DMRS signal is determined according to the DMRS CS value of DMRS CS information field indication, the DMRS cyclic shift value n that uses in the uplink of PHICH correspondence _DMRSBe DMRS CS value, and the CIF information field is fixed value, is used for the detection of UL SPS schedule information PDCCH according to DMRS CS information field indication.

Particularly, resource distribution module 220 calculating PHICH channel resources comprise:

The PHICH channel resource by a parameter to (n _PHICH ^Group, n _PHICH ^Seq) indication,

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

N wherein _SF ^PHICHBe the spreading factor size of PHICH modulation, N _PHICH ^GroupBe PHICH group number by the high-level signaling configuration, when TDD UL/DL is configured to 0 pattern and PUSCH in subframe 4 or 9 carryings, I _PHICHBe 1, otherwise be 0,

Expression is to I _{PRB_RA} ^Lowest_index/ N _PHICH ^GroupRound downwards.

Further set forth the present invention below for example, as shown in Figure 7, if the UL primaryCC of two UE is identical, all be UL CC1, its UL SPS PUSCH is by PDCCH indication among the DL CC1, be to have provided analysis, the description that specifically sees the following form under the situation of enable or disable according to UE1 and UE2 for DL CC1:

?CIF?disable

The CIF information field of UE1 can be used to indicate DMRS CS, carries out the conflict of PHICH and avoids

The situation of conflicting with the PHICH of UL SPS among the LTER8 is consistent, can continue to use the mechanism among the R8

As shown in Figure 8, if the UL primary CC difference of two UE, be respectively UL CC1 and UL CC2, its UL SPS PUSCH is by PDCCH indication among the DL CC1, incidence relation according to the DL/UL CC of cell-specific, the CIF at DL CC1 of UE 2 must be enable, and it is analyzed as follows shown in the table:

Wherein, N/A represents this situation can not occur.

The technical scheme that proposes according to the present invention has solved the problem of the ACK/NACK resource contention of the PUSCH under the up SPS transmission situation in the system, thereby can be to PHICH resource reasonable distribution, optimization system performance.The technique scheme that the present invention proposes, do not change in the existing LTE R8 version about the PHICH method for mapping resource, and do not influence among the R8 reliability for the PDCCH of UL SPS scheduling, can effectively carry out the avoiding of PHICH resource contention of UL SPS transmission simultaneously.In addition, the technical scheme that the present invention proposes, very little to the change of existing system, can not influence the compatibility of system, and realize simple, efficient.

One of ordinary skill in the art will appreciate that and realize that all or part of step that the foregoing description method is carried is to instruct relevant hardware to finish by program, described program can be stored in a kind of computer-readable recording medium, this program comprises one of step or its combination of method embodiment when carrying out.

In addition, each functional unit in each embodiment of the present invention can be integrated in the processing module, also can be that the independent physics in each unit exists, and also can be integrated in the module two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, also can adopt the form of software function module to realize.If described integrated module realizes with the form of software function module and during as independently production marketing or use, also can be stored in the computer read/write memory medium.

The above-mentioned storage medium of mentioning can be a read-only memory, disk or CD etc.

The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (12)

1. the method for the scheduling of resource of a feedback information is characterized in that, may further comprise the steps:

After the UL SPS schedule information among the current DL CC that terminal reception base station sends, described terminal is transmitted UL SPSPUSCH according to the transmission property of indicating in the UL SPS schedule information on UL Primary CC, if but the carrier wave of the current DL CC indication territory CIF time spent, the DMRS signal is determined according to the DMRS CS value of CIF information field indication or is determined according to the DMRS CS value of DMRS CS information field indication;

Described terminal is monitored its corresponding PHICH channel in the descending ACK/NAK feedback subframe of described UL SPS PUSCH correspondence, and described PHICH channel resource calculates according to resource indication information territory in the UL SPS schedule information and corresponding described DMRS CS value.

2. the method for the scheduling of resource of feedback information as claimed in claim 1, it is characterized in that, described PHICH channel resource calculates according to resource indication information territory in the UL SPS schedule information and corresponding described DMRS CS value, but if the CIF time spent of the current DL CC of terminal, the DMRS cyclic shift value n that uses in the uplink of its PHICH correspondence _DMRSIndicating mode comprises:

When described DMRS signal according to the CIF information field in DMRS CS indication when determining, the DMRS cyclic shift value n that uses in the uplink of PHICH correspondence _DMRSIt is DMRS CS value according to the indication of CIF information field; Perhaps

When described DMRS signal is determined according to the DMRS CS value of DMRS CS information field indication, the DMRS cyclic shift value n that uses in the uplink of PHICH correspondence _DMRSBe DMRS CS value, and the CIF information field is fixed value, is used for the detection of UL SPS schedule information PDCCH according to DMRS CS information field indication.

3. the method for the scheduling of resource of feedback information as claimed in claim 2 is characterized in that, described PHICH channel resource calculates and comprises:

Described PHICH channel resource by a parameter to (n _PHICH ^Group, n _PHICH ^Seq) indication,

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

N wherein _SF ^PHICHBe the spreading factor size of PHICH modulation, N _PHICH ^GroupBe PHICH group number by the high-level signaling configuration, when TDD UL/DL is configured to 0 pattern and PUSCH in subframe 4 or 9 carryings, I _PHICHBe 1, otherwise be 0,

Expression is to I _{PRB_RA} ^Lowest_index/ N _PHICH ^GroupRound downwards.

4. the method for the scheduling of resource of a feedback information is characterized in that, may further comprise the steps:

The base station is dispatched described terminal and is carried out UL SPS transmission to terminal transmits information;

Described base station sends the ACK/NAK feedback information of UL SPS PUSCH on corresponding PHICH channel resource to described terminal, described PHICH channel resource calculates according to resource indication information territory in the UL SPS schedule information and corresponding described DMRS CS value, if but the carrier wave of the current DLCC of the described terminal indication territory CIF time spent, described DMRS signal is determined according to the DMRS CS value of CIF information field indication or is determined according to the DMRS CS value of DMRS CS information field indication.

5. the method for the scheduling of resource of feedback information as claimed in claim 4, it is characterized in that, described PHICH channel resource calculates according to resource indication information territory in the UL SPS schedule information and corresponding described DMRS CS value, but if the CIF time spent of the current DL CC of terminal, the DMRS cyclic shift value n that uses in the uplink of its PHICH correspondence _DMRSIndicating mode comprises:

When described DMRS signal according to the CIF information field in DMRS CS indication when determining, the DMRS cyclic shift value n that uses in the uplink of PHICH correspondence _DMRSIt is DMRS CS value according to the indication of CIF information field; Perhaps

When described DMRS signal is determined according to the DMRS CS value of DMRS CS information field indication, the DMRS cyclic shift value n that uses in the uplink of PHICH correspondence _DMRSBe DMRS CS value, and the CIF information field is fixed value, is used for the detection of UL SPS schedule information PDCCH according to DMRS CS information field indication.

6. the method for the scheduling of resource of feedback information as claimed in claim 5 is characterized in that, described PHICH channel resource calculates and comprises:

Described PHICH channel resource by a parameter to (n _PHICH ^Group, n _PHICH ^Seq) indication,

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

N wherein _SF ^PHICHBe the spreading factor size of PHICH modulation, N _PHICH ^GroupBe PHICH group number by the high-level signaling configuration, when TDD UL/DL is configured to 0 pattern and PUSCH in subframe 4 or 9 carryings, I _PHICHBe 1, otherwise be 0,

Expression is to I _{PRB_RA} ^Lowest_index/ N _PHICH ^GroupRound downwards.

7. a terminal is characterized in that, comprises receiver module, computing module and sending module, described receiver module, be used for receiving the UL SPS schedule information of the current DL CC that the base station sends after;

Described sending module, the transmission property that is used for indicating according to UL SPS schedule information on UL Primary CC transmits UL SPS PUSCH, if but the carrier wave of the current DL CC indication territory CIF time spent, the DMRS signal is determined according to the DMRS CS value of CIF information field indication or is determined according to the DMRS CS value of DMRS CS information field indication;

Described computing module, be used to calculate corresponding PHICH channel resource, described PHICH channel resource calculates according to resource indication information territory in the UL SPS schedule information and corresponding described DMRS CS value, and described receiver module is monitored the ACK/NAK feedback subframe of described UL SPS PUSCH at described PHICH channel resource.

8. terminal as claimed in claim 7, it is characterized in that, described computing module calculates described PHICH channel resource according to resource indication information territory in the UL SPS schedule information and corresponding described DMRS CS value, but if the CIF time spent of the current DL CC of terminal, the DMRS cyclic shift value n that uses in the uplink of its PHICH correspondence _DMRSIndicating mode comprises:

When described DMRS signal according to the CIF information field in DMRS CS indication when determining, the DMRS cyclic shift value n that uses in the uplink of PHICH correspondence _DMRSIt is DMRS CS value according to the indication of CIF information field; Perhaps

When described DMRS signal is determined according to the DMRS CS value of DMRS CS information field indication, the DMRS cyclic shift value n that uses in the uplink of PHICH correspondence _DMRSBe DMRS CS value, and the CIF information field is fixed value, is used for the detection of UL SPS schedule information PDCCH according to DMRS CS information field indication.

9. terminal as claimed in claim 8 is characterized in that, described computing module calculates described PHICH channel resource and comprises:

Described PHICH channel resource by a parameter to (n _PHICH ^Group, n _PHICH ^Seq) indication,

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

N wherein _SF ^PHICHBe the spreading factor size of PHICH modulation, N _PHICH ^GroupBe PHICH group number by the high-level signaling configuration, when TDD UL/DL is configured to 0 pattern and PUSCH in subframe 4 or 9 carryings, I _PHICHBe 1, otherwise be 0, Expression is to I _{PRB_RA} ^Lowest_index/ N _PHICH ^GroupRound downwards.

10. a base station is characterized in that, comprises sending module, resource distribution module and receiver module,

Described sending module is used for to terminal transmits information, dispatches described terminal and carries out UL SPS transmission;

Described receiver module is used for receiving the UL SPS PUSCH of the transmission property transmission that described terminal indicates according to UL SPS schedule information on UL Primary CC;

Described resource distribution module, be used to the corresponding PHICH channel resource of described terminal distribution, described sending module sends the ACK/NAK feedback information of UL SPS PUSCH on described PHICH channel resource to described terminal, described PHICH channel resource calculates according to resource indication information territory in the UL SPS schedule information and corresponding described DMRS CS value, if but the carrier wave of the current DL CC of the described terminal indication territory CIF time spent, described DMRS signal is determined according to the DMRSCS value of CIF information field indication or is determined according to the DMRS CS value of DMRS CS information field indication.

11. base station as claimed in claim 10, it is characterized in that, described resource distribution module calculates described PHICH channel resource according to resource indication information territory in the UL SPS schedule information and corresponding described DMRS CS value, but if the CIF time spent of the current DL CC of terminal, the DMRS cyclic shift value n that uses in the uplink of its PHICH correspondence _DMRSIndicating mode comprises:

When described DMRS signal according to the CIF information field in DMRS CS indication when determining, the DMRS cyclic shift value n that uses in the uplink of PHICH correspondence _DMRSIt is DMRS CS value according to the indication of CIF information field; Perhaps

When described DMRS signal is determined according to the DMRS CS value of DMRS CS information field indication, the DMRS cyclic shift value n that uses in the uplink of PHICH correspondence _DMRSBe DMRS CS value, and the CIF information field is fixed value, is used for the detection of UL SPS schedule information PDCCH according to DMRS CS information field indication.

12. the method for the scheduling of resource of feedback information as claimed in claim 11 is characterized in that, described resource distribution module calculates described PHICH channel resource and comprises:

Described PHICH channel resource by a parameter to (n _PHICH ^Group, n _PHICH ^Seq) indication,

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

N wherein _SF ^PHICHBe the spreading factor size of PHICH modulation, N _PHICH ^GroupBe PHICH group number by the high-level signaling configuration, when TDD UL/DL is configured to 0 pattern and PUSCH in subframe 4 or 9 carryings, I _PHICHBe 1, otherwise be 0,

Expression is to I _{PRB_RA} ^Lowest_index/ N _PHICH ^GroupRound downwards.

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