CN104144509A - Multi-subframe dispatching implementation method and device for PDSCH - Google Patents

Multi-subframe dispatching implementation method and device for PDSCH Download PDF

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CN104144509A
CN104144509A CN201310170764.0A CN201310170764A CN104144509A CN 104144509 A CN104144509 A CN 104144509A CN 201310170764 A CN201310170764 A CN 201310170764A CN 104144509 A CN104144509 A CN 104144509A
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subframe
pdcch
pdsch
many
schedulings
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CN201310170764.0A
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CN104144509B (en
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付景兴
李迎阳
孙程君
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北京三星通信技术研究有限公司
三星电子株式会社
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Abstract

The invention discloses a multi-subframe dispatching implementation method for a PDSCH. The method includes the steps that UE receives configuration information from a base station, and the UE is configured to work in a multi-subframe dispatching working mode through the configuration information; the UE receives a PDCCH from a subframe set of PDCCH blind detection of the configured multi-subframe dispatching working mode, and analyzes out multi-subframe dispatching control information from the received PDCCH; the UE receives PDSCH data according to the multi-subframe dispatching control information obtained through analysis, and feeds back HARQ-ACK information according to the corresponding HARQ-ACK timing relationship. The invention further discloses a terminal. By application of the technical scheme, the purpose that a PDCCH of one subframe dispatches PDSCHs of multiple subframes can be achieved.

Description

The implementation method of many subframe schedulings of Physical Downlink Shared Channel and device

Technical field

The application relates to the dispatching method of the Physical Downlink Shared Channel (PDSCH) in wireless communication system, the particularly implementation method of many subframe schedulings of Physical Downlink Shared Channel and device.

Background technology

The Long Term Evolution of 3GPP standardization body (LTE) system is supported Frequency Division Duplexing (FDD) (FDD) and two kinds of duplex modes of time division duplex (TDD).For above-mentioned two kinds of modes, the length of each radio frames is 10ms, comprises the subframe that 10 length are 1ms, and the time slot that is 0.5ms by two continuous length forms, and k subframe comprises time slot 2k and time slot 2k+1.

For LTE FDD system, upstream and downstream transmission is carried by two symmetrical frequency ranges, and therefore, at each constantly, upstream and downstream subframe exists simultaneously.For LTE TDD system; upstream and downstream transmission is to be carried by same frequency range; pass through timing separation; according to difference configuration, by the different subframe definition in a system-frame, be sub-frame of uplink, descending sub frame or special subframe (subframe being formed by descending pilot frequency time slot, protection interval and uplink pilot time slot).Present LTE TDD system is supported 7 kinds of different upstream and downstream configurations, and as shown in table 1, wherein, the D in table 1 represents descending sub frame, and U represents sub-frame of uplink, and S represents special subframe.

Table 1TDD uplink-downlink configuration

In LTE system, downlink transfer is all that the scheduling by eNB realizes.

For downlink transfer, at subframe n-k, receive downlink physical control channel (PDCCH) and Physical Downlink Shared Channel (PDSCH), and at sub-frame of uplink n, feed back the mixed automatic retransfer request-reply (HARQ-ACK) of this PDSCH, wherein for FDD system, the value of k is constantly equal to 4, for TDD system, the value of k is determined by the uplink-downlink configuration of TDD, as shown in table 2.

Table 2TDD system descending relation integration index K:{k0, k1 ... kM-1}

Along with the raising of user to transfer of data rate requirement, people have proposed again enhancing (LTE-A) technology of LTE.In LTE-A, many subframe schedulings technology receives increasing concern.So-called many subframe schedulings, i.e. dispatch command and to be scheduled between subframe be no longer relation one to one, but a dispatch command can be dispatched one or more descending sub frames simultaneously, as shown in Figure 1.By this technology, can save the resource overhead of scheduling indication.

But in many subframe schedulings, the PDCCH of a subframe will dispatch the transmission of the PDSCH of a plurality of subframes, and define according to existing standard, the PDCCH of a descending sub frame can only dispatch the PDSCH of a subframe, the control information of current PDCCH can not meet the demand that the PDCCH of a subframe dispatches the PDSCH of a plurality of subframes simultaneously, therefore, need to, according to the feature of many subframe schedulings, rethink the control information transmission problem in PDCCH.

Summary of the invention

The application provides implementation method and the device of many subframe schedulings of PDSCH, the object of dispatching the PDSCH of a plurality of subframes to realize the PDCCH of a subframe.

The application discloses a kind of implementation method of many subframe schedulings of Physical Downlink Shared Channel, comprising:

UE receives configuration information from base station, and described configuration information configuration UE works in many subframe schedulings mode of operation;

UE receives PDCCH on the subframe collection of Physical Downlink Control Channel (PDCCH) blind Detecting of many subframe schedulings mode of operation of configuration, and resolves the control information of many subframe schedulings from the PDCCH receiving;

Many subframe schedulings control information that UE obtains according to parsing receives Physical Downlink Shared Channel (PDSCH) data, and according to corresponding HARQ-ACK timing relationship feedback HARQ-ACK information.

Preferably, described configuration information further the described PDCCH blind Detecting of configuration subframe collection, the maximum PDSCH number of sub-frames of each PDCCH scheduling, the PDSCH subframe collection of the many subframe schedulings of PDCCH of each subframe in the subframe collection of PDCCH blind Detecting;

Describedly from the PDCCH receiving, resolve the control information of many subframe schedulings and comprise: according to the maximum PDSCH number of sub-frames of each PDCCH scheduling, determine the length of many subframe schedulings control information, the territory at many subframe schedulings control information place obtains the control information of many subframe schedulings from PDCCH.

Preferably, UE configures subframe collection, the maximum PDSCH number of sub-frames of each PDCCH scheduling, the PDSCH subframe collection of the many subframe schedulings of PDCCH of each subframe in the subframe collection of PDCCH blind Detecting of described PDCCH blind Detecting by predefined mode;

Describedly from the PDCCH receiving, resolve the control information of many subframe schedulings and comprise: according to the maximum PDSCH number of sub-frames of each PDCCH scheduling, determine the length of many subframe schedulings control information, the territory at many subframe schedulings control information place obtains the control information of many subframe schedulings from PDCCH.

The PDSCH of each subframe that preferably, UE receives is that the PDCCH by a subframe carries out many subframe schedulings;

Or the PDSCH of each subframe that UE receives is that the PDCCH by a subframe or a plurality of subframes carries out many subframe schedulings.

Preferably, many subframe schedulings control information that described UE obtains according to parsing receives PDSCH data and comprises:

PDSCH for a plurality of subframes of the PDCCH scheduling of same subframe receives PDSCH data in identical PDSCH resource; Wherein, to the PDSCH of described a plurality of subframes, use identical through-put power to control (TPC), the modulation coding method identical to the same data block of the PDSCH of described a plurality of subframes (MCS), identical new data are indicated (NDI) and identical redundancy versions (RV), the PDSCH of described a plurality of subframes is used to same HARQ process identifier, and be new biography transmission of data or data retransmission by the data of NDI value judgement PDSCH transmission.

Preferably, a plurality of subframes of the PDCCH of described same subframe scheduling belong to the descending relation integration of same HARQ-ACK;

Or a plurality of subframes of the PDCCH scheduling of described same subframe belong to the different descending relation integrations of HARQ-ACK, and described PDCCH has dispatched all descending sub frames in the descending relation integration of described different HARQ-ACK.

Preferably, described UE from base station reception configuration information is: it is the configuration information of PDCCH form 1A that UE receives transformat from base station;

Described UE receives PDCCH on the subframe collection of PDCCH blind Detecting of many subframe schedulings mode of operation of configuration: UE is according to many subframe schedulings mode of operation, in the subframe of the PDCCH blind Detecting of configuration, integrates and receives transformat as the PDCCH of PDCCH form 1/1B/1D/2/2A/2B/2C/2D.

Preferably, describedly according to corresponding HARQ-ACK timing relationship feedback HARQ-ACK information, be:

According to the moment that receives PDSCH data, determine the moment of the HARQ-ACK information of the described PDSCH data of feedback, in the determined moment, feed back the HARQ-ACK information of described PDSCH data.

Disclosed herein as well is a kind of device, for realizing many subframe schedulings of Physical Downlink Shared Channel, comprising:

Configuration module, for receive configuration information from base station, described configuration information configuration UE works in many subframe schedulings mode of operation;

Receiver module, receives PDCCH on the subframe collection of Physical Downlink Control Channel (PDCCH) blind Detecting for the many subframe schedulings mode of operation in configuration, and resolve the control information of many subframe schedulings from the PDCCH receiving; And receive Physical Downlink Shared Channel (PDSCH) data for the many subframe schedulings control information obtaining according to parsing;

Feedback module, for feeding back HARQ-ACK information according to corresponding HARQ-ACK timing relationship.

As seen from the above technical solution, the implementation of many subframe schedulings of the PDSCH that the application provides is by being configured to UE to work in many subframe schedulings mode of operation, and on the subframe collection of the PDCCH blind Detecting of many subframe schedulings mode of operation of configuration, receive PDCCH by UE, and from the PDCCH receiving, resolve the control information of many subframe schedulings, many subframe schedulings control information that last UE obtains according to parsing receives PDSCH data, has realized the object that the PDCCH of a subframe dispatches the PDSCH of a plurality of subframes.

Accompanying drawing explanation

Fig. 1 is the contrast schematic diagram of single sub-frame scheduling and many subframe schedulings;

Fig. 2 is the schematic flow sheet of many subframe scheduling methods of a kind of PDSCH of the application;

Fig. 3 is that the control information of many subframe schedulings of the application adopts the mode of bit mapping to indicate the schematic diagram of the subframe being scheduled;

Fig. 4 is that in the embodiment of the present application one, the control information of many subframe schedulings adopts the mode of bit mapping to indicate the schematic diagram of the subframe being scheduled;

Fig. 5 is that the data of using NDI value indication PDSCH to transmit in the embodiment of the present application three are new biography transmission of data or the schematic diagram of data retransmission;

Fig. 6 is the schematic diagram of the same position of the same HARQ process of the application;

Fig. 7 is situation 1 schematic diagram that the PDCCH of a subframe in the embodiment of the present application four dispatches a plurality of descending sub frames;

Fig. 8 is situation 2 schematic diagrames that the PDCCH of a subframe in the embodiment of the present application four dispatches a plurality of descending sub frames;

Fig. 9 is situation 2 schematic diagrames that the PDCCH of a subframe in the embodiment of the present application four dispatches a plurality of descending sub frames;

Figure 10 is the composition structural representation of the application's one better terminal.

Embodiment

For making the application's object, technical scheme and advantage clearer, referring to the accompanying drawing embodiment that develops simultaneously, the application is described in further detail.

In many subframe schedulings system, because change has occurred the corresponding relation between descending scheduling instruction and the descending sub frame that is scheduled, therefore in existing standard, the dispatching method of PDSCH is no longer applicable, in order effectively to dispatch PDSCH, need to, for the feature of many subframe schedulings system, the dispatching method of new PDSCH be proposed.

Fig. 2 is the schematic flow sheet of many subframe scheduling methods of a kind of PDSCH of the application, comprises the following steps:

Step 201:UE receives configuration information from base station, and described configuration information configuration UE works in many subframe schedulings mode of operation.

The configuration information configuration UE that UE receives from base station works in many subframe schedulings mode of operation, this configuration information can configure the subframe collection of the PDCCH blind Detecting of many subframe schedulings mode of operation simultaneously, the subframe collection of described PDCCH blind Detecting can be the set of all descending sub frame, may be also the subset of all descending sub frame set.The subframe collection of the PDCCH blind Detecting of many subframe schedulings mode of operation also can define in agreement.

Step 202:UE receives PDCCH on the subframe collection of the PDCCH blind Detecting of configured many subframe schedulings mode of operation, and resolves the control information of many subframe schedulings from the PDCCH receiving.

Many subframe schedulings control information that step 203:UE obtains according to parsing receives PDSCH data, and according to corresponding HARQ-ACK timing relationship feedback HARQ-ACK information.

Shown in Fig. 2, in step 202, need to from the PDCCH receiving, resolve the control information of many subframe schedulings, below concrete analytic method be described.

At present, for each transmission mode, the distinctive PDCCH of UE has two kinds of transformats: a kind of transformat is PDCCH form 1A, and another kind of transformat is PDCCH form 1/1B/1D/2/2A/2B/2C/2D.Can stipulate: PDCCH form 1A does not support many subframe schedulings mode of operation, and PDCCH form 1/1B/1D/2/2A/2B/2C/2D supports many subframe schedulings mode of operation, like this, can issue configuration information by PDCCH form 1A, configuration UE works in many subframe schedulings mode of operation, like this, UE will be according to many subframe schedulings mode of operation, in the subframe of the PDCCH blind Detecting of configuration, integrates and receives transformat as the PDCCH of PDCCH form 1/1B/1D/2/2A/2B/2C/2D.

Or, can stipulate: PDCCH form 1A and PDCCH form 1/1B/1D/2/2A/2B/2C/2D all support many subframe schedulings mode of operation, in this case, need configuration UE by other means to work in many subframe schedulings mode of operation, for example: by system information, be configured.

Described many subframe schedulings control information can be a territory in PDCCH, and this territory can be the bit newly increasing, and also can redefine existing bit or define existing filling bit, and concrete indicating means the application does not limit.For example, can adopt the method for bit mapping in this territory, to indicate the PDSCH subframe of PDCCH scheduling, the application is follow-up will take this indicating means and describe as example.The length of many subframe schedulings control information is the number of sub-frames of the PDCCH PDSCH that may dispatch, and UE can determine the length of many subframe schedulings control information or can directly be provided by 3GPP agreement the length of this control information by receiving high-level signaling.Fig. 3 is that the control information of many subframe schedulings of the application adopts the mode of bit mapping to indicate the schematic diagram of the subframe being scheduled, according to Fig. 3, if many subframe schedulings control information bit corresponding to subframe is " 1 ", represent that this subframe is scheduled, if many subframe schedulings control information bit corresponding to subframe is " 0 ", represent that this subframe is not scheduled.

Below by embodiment, describe many subframe scheduling methods of the application PDSCH in detail, described in the application, many subframe scheduling methods are applicable to PDCCH form 1/1B/1D/2/2A/2B/2C/2D or are applicable to PDCCH form 1/1A/1B/1D/2/2A/2B/2C/2D, and the PDCCH form 2C of take below describes as example.

Embodiment mono-:

In the present embodiment, the position of the PDCCH that UE detects under many subframe schedulings mode of operation is configured by high-level signaling, the PDSCH of each subframe can only carry out many subframe schedulings by the PDCCH of a subframe, the high-level signaling that UE receives comprises the information of three parts: first is the maximum PDSCH number of sub-frames of each PDCCH scheduling, second portion is the subframe collection of the PDCCH blind Detecting of many subframe schedulings mode of operation, and third part is the PDSCH subframe collection of the many subframe schedulings of PDCCH of each subframe in the subframe collection of PDCCH blind Detecting.

The maximum PDSCH number of sub-frames of PDCCH scheduling of take is below illustrated as 2, and the maximum PDSCH number of sub-frames of a PDCCH scheduling is not limited to 2, as 3,4 or more, does not elaborate here.

For the UE that is configured to FDD, suppose that the subframe collection of PDCCH blind Detecting of many subframe schedulings mode of operation of configuration is { 0,2,4,6,8}, and UE determines that by receiving high-level signaling the length of many subframe schedulings control information is 2, in the present embodiment, UE is at the subframe collection { 0 of the PDCCH of many subframe schedulings mode of operation blind Detecting, 2,4,6, subframe n in 8} detects the PDCCH of many subframe schedulings, and the PDSCH subframe collection of the PDCCH scheduling of subframe n is in Table 3.According to shown in table 3, two descending sub frames of each descending sub frame scheduling, for example: the PDCCH that UE detects in subframe 0 may dispatch subframe 0 and subframe 1, in conjunction with indicating mode shown in Fig. 3, if the many subframe schedulings control information in the PDCCH detecting in subframe 0 is " 01 ", so, owing to indicating many subframe schedulings control information bit of subframe 0, be " 0 ", representing that subframe 0 is not scheduled, is " 1 " owing to indicating many subframe schedulings control information bit of subframe 1, represents that subframe 1 is scheduled.

Table 3

Subframe sequence number n The PDSCH subframe collection of the PDCCH scheduling of subframe n 0 {0,1} 2 {2,3} 4 {4,5} 6 {6,7} 8 {8,9}

For the UE that is configured to TDD, the TDD upstream and downstream of supposing UE is configured to TDD upstream and downstream configuration 5, the subframe collection of the PDCCH blind Detecting of many subframe schedulings mode of operation of configuration is { 9,1,3,5,7}, and, UE determines that by receiving high-level signaling the length of many subframe schedulings control information is 2, in the present embodiment, UE is at the subframe collection { 9,1 of the PDCCH of many subframe schedulings mode of operation blind Detecting, 3, subframe sequence number n in 5,7} detects the PDCCH of many subframe schedulings, and the PDSCH subframe collection of the PDCCH scheduling of subframe sequence number n is in Table 4.According to shown in table 4, in subframe 9,3,5,7, two descending sub frames of each descending sub frame scheduling, in subframe 1, a descending sub frame of each descending sub frame scheduling.For example: the PDCCH scheduling subframe 1 that UE detects in subframe 1, suppose that the control information of many subframe schedulings adopts the mode of bit mapping to indicate the subframe being scheduled, if the many subframe schedulings control information in the PDCCH detecting in subframe 1 is " 0x ", the many subframe schedulings control information bit due to indication subframe 1 is " 0 ", represents that subframe 1 is not scheduled; If the many subframe schedulings control information in the PDCCH detecting at subframe 1 place is " 1x ", the many subframe schedulings control information bit due to indication subframe 1 is " 1 ", represents that subframe 1 is scheduled, as shown in Figure 4.

Table 4

Subframe sequence number n The PDSCH subframe collection of the PDCCH scheduling of subframe n 9 (radio frames M-1) {9,0} 1 (radio frames M) {1} 3 (radio frames M) {3,4} 5 (radio frames M) {5,6} 7 (radio frames M) {7,8}

Embodiment bis-:

The position of the PDCCH that UE detects under many subframe schedulings mode of operation is configured by high-level signaling, the PDSCH of each subframe may carry out many subframe schedulings by the PDCCH of a subframe or a plurality of subframes, the high-level signaling that UE receives comprises the information of following three parts: first is the maximum PDSCH number of sub-frames of each PDCCH scheduling, second portion is the subframe collection of the PDCCH blind Detecting of many subframe schedulings mode of operation, and third part is the PDSCH subframe collection of the many subframe schedulings of PDCCH of each subframe in the subframe collection of PDCCH blind Detecting.

The maximum PDSCH number of sub-frames of PDCCH scheduling of take is below illustrated as 2, and the maximum PDSCH number of sub-frames of a PDCCH scheduling is not limited to 2, as 3,4 or more, does not elaborate here.

For the UE that is configured to FDD, suppose that the subframe collection that high-level signaling that UE receives configures the PDCCH blind Detecting of many subframe schedulings mode of operation is { 0,1,2,3,4,5,6,7,8,9}, and, UE determines that by receiving high-level signaling the length of many subframe schedulings control information is 2, and in the present embodiment, UE is at the subframe collection { 0 of the PDCCH of many subframe schedulings mode of operation blind Detecting, 1,2,3,4,5,6,7,8, subframe sequence number n in 9} detects the PDCCH of many subframe schedulings, and the PDSCH subframe collection of the PDCCH scheduling of subframe sequence number n is in Table 5.According to shown in table 5, two descending sub frames of each descending sub frame scheduling, and each descending sub frame can carry out many subframe schedulings by the PDCCH of a plurality of subframes, for example: the PDCCH that UE detects in subframe 6 may dispatch subframe 6,7, the PDCCH detecting in subframe 7 may dispatch subframe 7,8, and subframe 7 can be carried out many subframe schedulings by the PDCCH of subframe 6 or subframe 7.

Table 5

Subframe sequence number n The PDSCH subframe collection of the PDCCH scheduling of subframe n 0 {0,1} 1 {1,2} 2 {2,3} 3 {3,4} 4 {4,5} 5 {5,6} 6 {6,7} 7 {7,8} 8 {8,9} 9 {9,0}

For the UE that is configured to TDD, suppose that the subframe collection that high-level signaling that UE receives configures the PDCCH blind Detecting of many subframe schedulings mode of operation is { 9,0,1,3,4,5,6,7,8}, and UE determines that by receiving high-level signaling the length of many subframe schedulings control information is 2, in the present embodiment, UE is at the subframe collection { 9 of the PDCCH of many subframe schedulings mode of operation blind Detecting, 0,1,3,4,5,6,7, subframe sequence number n in 8} detects the PDCCH of many subframe schedulings, and the PDSCH subframe collection of the PDCCH scheduling of subframe sequence number n is in Table 6.According to shown in table 6, in subframe 9,0,1,3,4,5,6,7, two descending sub frames of each descending sub frame scheduling, in subframe 8, a descending sub frame of each descending sub frame scheduling, this is because subframe 8 and subframe below 9 do not belong to same HARQ-ACK bundled window.For example: the PDCCH that UE detects in subframe 6 may dispatch subframe 6,7.

Table 6

Subframe sequence number n The PDSCH subframe collection of the PDCCH scheduling of subframe n 9 (radio frames M-1) {9,0} 0 (radio frames M) {0,1} 1 (radio frames M) {1,3} 3 (radio frames M) {3,4} 4 (radio frames M) {4,5} 5 (radio frames M) {5,6} 6 (radio frames M) {6,7} 7 (radio frames M) {7,8} 8 (radio frames M) {8}

Embodiment tri-:

In the present embodiment, all subframes in the PDSCH subframe collection of the PDCCH of descending sub frame scheduling belong to same HARQ process, share a HARQ process identifier.

The indicating mode of the PDCCH form of a kind of PDSCH of scheduling is: the PDSCH resource of a plurality of descending sub frames of the PDCCH scheduling of same descending sub frame is distributed identical, through-put power is controlled (Transmission power control, TPC) identical, the same transmission block of all subframes is used same modulation coding method (modulation and coding scheme, MCS), same new data indication (new data indicator, NDI) and same redundancy versions (redundancy version, RV), as shown in table 7.

Table 7

The PDSCH of a plurality of subframes of the PDCCH scheduling of same subframe belongs to same HARQ process, utilize 1 HARQ process ID indication, the PDSCH of a plurality of subframes of same HARQ process indication is according to the position of the PDSCH that may dispatch at same PDCCH one to one, the PDSCH that is each subframe in same HARQ process is in the same position transmission corresponding to this HARQ process, follow-uply will describe the expressed implication of same position in detail.

For example, as shown in Figure 3, if the many subframes control information in the PDCCH that UE detects in subframe 2 is " 11 ", the PDSCH of subframe 2 and subframe 3 is scheduled, the resource of subframe 2 and the PDSCH of subframe 3 is distributed identical, the PDSCH of subframe 2 and subframe 3 belongs to same HARQ process, share same HARQ process ID, the same data block of the PDSCH of subframe 2 and subframe 3 is used same MCS, same RV and same NDI, uses same NDI to determine that the data of the PDSCH transmission of subframe 2 and subframe 3 are new biography transmission of data or data retransmission.Particularly:

If the NDI value of same position is compared upset has been occurred in the same HARQ process of NDI value and last scheduled, the data of the PDSCH of subframe 2 and subframe 3 transmission are new biography transmission of data, if the NDI value of same position is not compared and do not overturn in the same HARQ process of NDI value and last scheduled, the data of the PDSCH of subframe 2 and subframe 3 transmission are the data retransmissions of data of the same position of last scheduled.If the subframe of same position is not scheduled in the same HARQ process of last scheduled, NDI value in the same HARQ process NDI value and the last time being scheduled in the PDCCH of same position compares, and deciding the data of PDSCH transmission is new biography transmission of data or data retransmission.

Referring to Fig. 5, many subframe schedulings control information in the PDCCH that UE detects at subframe Y is " 10 ", the PDSCH of subframe Y is scheduled, NDI in the PDCCH that subframe Y detects is 1, the PDCCH of the last time scheduling of same HARQ process is at subframe X, NDI in the PDCCH that subframe X place detects is 0, and upset has occurred the NDI in the PDCCH detecting with subframe Y place, and the data of the PDSCH of subframe Y transmission are new datas.Many subframe schedulings control information in the PDCCH that UE detects at subframe Z place is " 01 ", the PDSCH of subframe Z+1 is scheduled, NDI in the PDCCH that subframe Z place detects is 0, the PDCCH of the last time scheduling of same HARQ process is at subframe Y, but the PDCCH at subframe Y place does not dispatch the subframe Y+1 that belongs to same position with subframe Z+1, therefore the subframe of the same position of the last time of same HARQ process scheduling is subframe X+1, NDI in the PDCCH detecting due to subframe X place is 0, NDI in the PDCCH detecting with subframe Z place compares, do not overturn, therefore, the PDSCH of subframe Z+1 is the data retransmission of the data of subframe X+1.

Foregoing same position refers to: the ordinal position of the PDSCH dispatching at the PDCCH of same HARQ process ID is identical.Referring to Fig. 6, first position of the PDCCH scheduling of the PDSCH of the subframe 2 that the PDCCH that radio frames n subframe 2 places detect dispatches in this HARQ process ID, second position of the PDCCH scheduling of the PDSCH of the subframe 3 that the PDCCH that radio frames n subframe 2 places detect dispatches in this HARQ process ID, the PDSCH in first position that the PDCCH of the HARQ process ID that the employing that detects at radio frames n+1 subframe 4 places is identical dispatches is the PDSCH of subframe 4, the PDSCH in second position that the PDCCH of the HARQ process ID that the employing that detects at radio frames n+1 subframe 4 places is identical dispatches is the PDSCH of subframe 5, the PDSCH of the PDSCH of radio frames n subframe 2 and radio frames n+1 subframe 4 is same positions of same HARQ process, the PDSCH of the PDSCH of radio frames n subframe 3 and radio frames n+1 subframe 5 is same positions of same HARQ process.

Embodiment tetra-:

UE detects the PDCCH of many subframe schedulings at subframe position n, a plurality of descending sub frames of the PDCCH scheduling of a subframe meet one of two things below:

A plurality of descending sub frames of situation 1:PDCCH scheduling belong to the descending relation integration of same HARQ-ACK.Described descending relation integration (Downlink Associate set) has detailed explanation in 3GPP36.213, and the set that sends all descending sub frames of HARQ-ACK feedback information at the PUCCH of same sub-frame of uplink is called descending relation integration.

For example: as shown in Figure 7, the TDD upstream and downstream that UE adopts is configured to TDD upstream and downstream configuration 2, according to the HARQ-ACK timing relationship of TDD upstream and downstream configuration 2, the subframe 9 of radio frames n-1, the subframe 0 of radio frames n, subframe 1, subframe 3 are fed back HARQ-ACK information in the subframe 7 of radio frames n, and the subframe 9 of radio frames n-1, the subframe 0 of radio frames n, subframe 1, subframe 3 are elements of a descending relation integration.Therefore, the subframe 9 of radio frames n-1 and the subframe 0 of radio frames n belong to same descending relation integration, and the subframe 9 of the subframe of radio frames n-1 subframe scheduling more than 9 radio frames n-1 and the subframe 0 of radio frames n meet this principle.

A plurality of descending sub frames of situation 2:PDCCH scheduling belong to the different descending relation integrations of HARQ-ACK, and have dispatched all descending sub frames in the descending relation integration of described different HARQ-ACK.

For example: as shown in Figure 8, the TDD upstream and downstream that UE adopts is configured to TDD upstream and downstream configuration 1, according to the HARQ-ACK timing relationship of TDD upstream and downstream configuration 1:

The subframe 0 of radio frames n, subframe 1 are fed back HARQ-ACK information in the subframe 7 of radio frames n, and the subframe 0 of radio frames n, subframe 1 belong to same descending relation integration;

The subframe 4 that the subframe 4 of radio frames n is fed back HARQ-ACK information, radio frames n in the subframe 8 of radio frames n belongs to the element of a descending relation integration.

Subframe 0, the subframe 1 of radio frames n and the subframe 4 of radio frames n of the subframe of radio frames n subframe scheduling more than 0 radio frames n, the subframe 0 of radio frames n of the PDCCH scheduling of the subframe 0 of radio frames n is, the subframe 4 of the subframe 1 of radio frames n and radio frames n belongs to two descending relation integrations of different HARQ-ACK, but the subframe 4 of the subframe 0 of radio frames n, the subframe 1 of radio frames n and radio frames n is all elements in institute's dispatching downlink relation integration, belongs to this situation.

Again for example, as shown in Figure 9, UE is FDD configuration, according to the HARQ-ACK timing relationship of FDD:

The subframe 0 of radio frames n is fed back HARQ-ACK information in the subframe 4 of radio frames n, and the subframe 0 of radio frames n belongs to a descending relation integration;

The subframe 1 of radio frames n is fed back HARQ-ACK information in the subframe 5 of radio frames n, and the subframe 1 of radio frames n belongs to another descending relation integration.

The subframe 0 of the subframe of radio frames n subframe scheduling more than 0 radio frames n and the subframe 1 of radio frames n, the subframe 0 of radio frames n of the PDCCH scheduling of the subframe 0 of radio frames n is, the subframe 1 of radio frames n belongs to two descending relation integrations of different HARQ-ACK, but the subframe 0 of radio frames n, the subframe of radio frames n 1 are all elements in dispatched two descending relation integrations, belong to this situation.

For situation 1, the PDSCH dispatching due to a PDCCH belongs to 1 descending relation integration, and the DAI in PDCCH can correctly work, and guarantees for the bit of the HARQ-ACK feedback information feeding back identical in the understanding of base station and terminal; For situation 2, because a PDCCH has dispatched all elements in descending relation integration, now do not need the scheduling situation with the PDSCH of DAI indicating downlink subframe, base station and terminal can not produce different understanding to the bit of HARQ-ACK feedback information yet.

Preferably, in above-mentioned steps 203, HARQ-ACK timing relationship when non-many subframe schedulings are followed in the HARQ-ACK of PDSCH transmission, the transmission time of the HARQ-ACK information of PDSCH is determined by the transmission time of PDSCH, have nothing to do with the transmission time of dispatching the PDCCH of PDSCH, as shown in Figure 9.The PDCCH scheduling subframe 0 of subframe 0 and/or the PDSCH of subframe 1, the HARQ-ACK information of the PDSCH of subframe 0 is in subframe 4 feedbacks, the HARQ-ACK information of the PDSCH of subframe 1 is in subframe 5 feedbacks, the resource that the resource that the PDSCH of subframe 0 is used in the HARQ-ACK information of subframe 4 feedback and the PDSCH of subframe 1 are used in the HARQ-ACK information of subframe 5 feedbacks is dispatched the PDSCH of subframe 0 and/or the subframe 1 minimum control channel element (CCE) of PDCCH in using subframe 0 draws or by mixed automatic retransfer, replys resource indication (ARI) and indicate and draw, and the resource that the PDSCH of subframe 0 is used in the HARQ-ACK information of subframe 4 feedbacks is identical with the position of the resource that the PDSCH of subframe 1 is used in the HARQ-ACK information of subframe 5 feedbacks.

Corresponding to said method, the application discloses a kind of terminal, and as shown in figure 10, this terminal, for realizing many subframe schedulings of Physical Downlink Shared Channel, comprising:

Configuration module, for receive configuration information from base station, described configuration information configuration UE works in many subframe schedulings mode of operation;

Receiver module, receives PDCCH on the subframe collection of Physical Downlink Control Channel (PDCCH) blind Detecting for the many subframe schedulings mode of operation in configuration, and resolve the control information of many subframe schedulings from the PDCCH receiving; And receive Physical Downlink Shared Channel (PDSCH) data for the many subframe schedulings control information obtaining according to parsing;

Feedback module, for feeding back HARQ-ACK information according to corresponding HARQ-ACK timing relationship.

The foregoing is only the application's preferred embodiment, not in order to limit the application, all within the application's spirit and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in the scope of the application's protection.

Claims (9)

1. an implementation method for many subframe schedulings of Physical Downlink Shared Channel, is characterized in that, comprising:
UE receives configuration information from base station, and described configuration information configuration UE works in many subframe schedulings mode of operation;
UE receives PDCCH on the subframe collection of Physical Downlink Control Channel (PDCCH) blind Detecting of many subframe schedulings mode of operation of configuration, and resolves the control information of many subframe schedulings from the PDCCH receiving;
Many subframe schedulings control information that UE obtains according to parsing receives Physical Downlink Shared Channel (PDSCH) data, and according to corresponding HARQ-ACK timing relationship feedback HARQ-ACK information.
2. method according to claim 1, is characterized in that:
Described configuration information is subframe collection, the maximum PDSCH number of sub-frames of each PDCCH scheduling, the PDSCH subframe collection of the many subframe schedulings of PDCCH of each subframe in the subframe collection of PDCCH blind Detecting of the described PDCCH blind Detecting of configuration further;
Describedly from the PDCCH receiving, resolve the control information of many subframe schedulings and comprise: according to the maximum PDSCH number of sub-frames of each PDCCH scheduling, determine the length of many subframe schedulings control information, the territory at many subframe schedulings control information place obtains the control information of many subframe schedulings from PDCCH.
3. method according to claim 1, is characterized in that:
UE configures subframe collection, the maximum PDSCH number of sub-frames of each PDCCH scheduling, the PDSCH subframe collection of the many subframe schedulings of PDCCH of each subframe in the subframe collection of PDCCH blind Detecting of described PDCCH blind Detecting by predefined mode;
Describedly from the PDCCH receiving, resolve the control information of many subframe schedulings and comprise: according to the maximum PDSCH number of sub-frames of each PDCCH scheduling, determine the length of many subframe schedulings control information, the territory at many subframe schedulings control information place obtains the control information of many subframe schedulings from PDCCH.
4. according to the method described in claims 1 to 3 any one, it is characterized in that:
The PDSCH of each subframe that UE receives is that the PDCCH by a subframe carries out many subframe schedulings;
Or the PDSCH of each subframe that UE receives is that the PDCCH by a subframe or a plurality of subframes carries out many subframe schedulings.
5. according to the method described in claims 1 to 3 any one, it is characterized in that, many subframe schedulings control information that described UE obtains according to parsing receives PDSCH data and comprises:
PDSCH for a plurality of subframes of the PDCCH scheduling of same subframe receives PDSCH data in identical PDSCH resource; Wherein, to the PDSCH of described a plurality of subframes, use identical through-put power to control (TPC), the modulation coding method identical to the same data block of the PDSCH of described a plurality of subframes (MCS), identical new data are indicated (NDI) and identical redundancy versions (RV), the PDSCH of described a plurality of subframes is used to same HARQ process identifier, and be new biography transmission of data or data retransmission by the data of NDI value judgement PDSCH transmission.
6. method according to claim 5, is characterized in that:
A plurality of subframes of the PDCCH scheduling of described same subframe belong to the descending relation integration of same HARQ-ACK;
Or a plurality of subframes of the PDCCH scheduling of described same subframe belong to the different descending relation integrations of HARQ-ACK, and described PDCCH has dispatched all descending sub frames in the descending relation integration of described different HARQ-ACK.
7. according to the method described in claims 1 to 3 any one, it is characterized in that:
Described UE receives configuration information from base station: it is the configuration information of PDCCH form 1A that UE receives transformat from base station;
Described UE receives PDCCH on the subframe collection of PDCCH blind Detecting of many subframe schedulings mode of operation of configuration: UE is according to many subframe schedulings mode of operation, in the subframe of the PDCCH blind Detecting of configuration, integrates and receives transformat as the PDCCH of PDCCH form 1/1B/1D/2/2A/2B/2C/2D.
8. according to the method described in claims 1 to 3 any one, it is characterized in that, describedly according to corresponding HARQ-ACK timing relationship feedback HARQ-ACK information, be:
According to the moment that receives PDSCH data, determine the moment of the HARQ-ACK information of the described PDSCH data of feedback, in the determined moment, feed back the HARQ-ACK information of described PDSCH data.
9. a device, for realizing many subframe schedulings of Physical Downlink Shared Channel, is characterized in that, comprising:
Configuration module, for receive configuration information from base station, described configuration information configuration UE works in many subframe schedulings mode of operation;
Receiver module, receives PDCCH on the subframe collection of Physical Downlink Control Channel (PDCCH) blind Detecting for the many subframe schedulings mode of operation in configuration, and resolve the control information of many subframe schedulings from the PDCCH receiving; And receive Physical Downlink Shared Channel (PDSCH) data for the many subframe schedulings control information obtaining according to parsing;
Feedback module, for feeding back HARQ-ACK information according to corresponding HARQ-ACK timing relationship.
CN201310170764.0A 2013-05-10 2013-05-10 The implementation method and device of more subframe schedulings of Physical Downlink Shared Channel CN104144509B (en)

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WO2016090964A1 (en) * 2014-12-10 2016-06-16 中兴通讯股份有限公司 Method and device for realizing downlink coordinated multiple point transmission
CN105722239A (en) * 2016-02-05 2016-06-29 宇龙计算机通信科技(深圳)有限公司 Method for detecting dispatching instruction and terminal
CN105764146A (en) * 2016-02-05 2016-07-13 宇龙计算机通信科技(深圳)有限公司 Subframe configuration method, data transmission method and related equipment and system
CN108401486A (en) * 2017-11-17 2018-08-14 北京小米移动软件有限公司 The instruction of hybrid automatic repeat-request feedback, feedback method and device and base station
WO2019127250A1 (en) * 2017-12-28 2019-07-04 北京小米移动软件有限公司 Data transmission method, device and system, and computer readable storage medium
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