CN109565811A - A kind of data dispatching method and device, computer storage medium - Google Patents

A kind of data dispatching method and device, computer storage medium Download PDF

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Publication number
CN109565811A
CN109565811A CN201780047644.8A CN201780047644A CN109565811A CN 109565811 A CN109565811 A CN 109565811A CN 201780047644 A CN201780047644 A CN 201780047644A CN 109565811 A CN109565811 A CN 109565811A
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stti
pdcch
indication information
resource indication
different
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CN201780047644.8A
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CN109565811B (en
Inventor
唐海
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Priority to PCT/CN2017/096285 priority Critical patent/WO2019028619A1/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management, e.g. wireless traffic scheduling or selection or allocation of wireless resources
    • H04W72/12Dynamic Wireless traffic scheduling ; Dynamically scheduled allocation on shared channel
    • H04W72/14Dynamic Wireless traffic scheduling ; Dynamically scheduled allocation on shared channel using a grant or specific channel

Abstract

The embodiment of the present application discloses a kind of data dispatching method and device, computer storage medium, which comprises terminal receives the PDCCH that base station is sent;The terminal is based on the PDCCH, determines resource indication information, wherein the resource indication information and the time-domain position for the sTTI for being used for transmission data have corresponding relationship;The terminal is based on the resource indication information, determines the time-domain position for the sTTI that transmission data use.

Description

A kind of data dispatching method and device, computer storage medium Technical field
The present invention relates to the data dispatching methods and device, computer storage medium in vehicle networking technical field more particularly to a kind of car networking.
Background technique
In car networking system, car-mounted terminal is used based on long term evolution-vehicle to vehicle (LTE-V2V, Long Term Evaluation-Vehicle to Vehicle) sidelink (SL, Sidelink) transmission technology, carry out the transmission of data.Different by way of receiving or send base station from communication data in traditional LTE system, car networking system has higher spectrum efficiency and lower propagation delay time by the way of terminal-to-terminal service direct communication.
Car networking technology is standardized in third generation partner program (3GPP, 3rd Generation Partnership Project) Rel-14, defines two kinds of transmission modes.In both transmission modes, the content that car-mounted terminal transmits on sidelink includes sidelink control information (SCI, Sidelink Control Information) and data.
Short transmission time interval (sTTI is introduced in 3GPP Rel-15, short Transmission Time Interval), here, sTTI indicates that the data of user utilize M orthogonal frequency division multiplexing (OFDM, Orthogonal Frequency Division Multiplexing) symbol transmitted, rather than a complete subframe, such as M=4 or M=7.
In order to be compatible in Rel-15 using user's common source pond in the user and Rel-14 of sTTI, the user of Rel-15 needs to send three kinds of information, it is respectively as follows: normal Scheduling assistance information (SA, Scheduling Assignment), the data of short SA, sTTI, wherein, that carry in SA and short SA is SCI.In this case, if the scheduling information of base station is scheduled based on subframe, how base station is that the terminal distribution resource carried out data transmission using sTTI is problem to be solved.
Summary of the invention
In order to solve the above technical problems, the embodiment of the invention provides a kind of data dispatching method and devices, computer storage medium.
Data dispatching method provided in an embodiment of the present invention, comprising:
Terminal receives the PDCCH that base station is sent;
The terminal is based on the PDCCH, determines resource indication information, wherein the resource indication information and the time-domain position for the sTTI for being used for transmission data have corresponding relationship;
The terminal is based on the resource indication information, determines the time-domain position for the sTTI that transmission data use.
Another embodiment of the present invention provides data dispatching method, comprising:
Base station is terminal distribution transfer resource, and determines resource indication information corresponding with the transfer resource, wherein the resource indication information and the time-domain position for the sTTI for being used for transmission data have corresponding relationship;
The base station is based on the resource indication information and sends PDCCH to terminal, so that the terminal determines the time-domain position of the sTTI of transmission data use based on the PDCCH.
Data scheduling device provided in an embodiment of the present invention, comprising:
Receiving unit is configured to receive the PDCCH that base station is sent;
First determination unit is configured to the PDCCH, determines resource indication information, wherein the resource indication information and the time-domain position for the sTTI for being used for transmission data have corresponding relationship;
Second determination unit is configured to the resource indication information, determines the time-domain position for the sTTI that transmission data use.
Another embodiment of the present invention provides data scheduling device, comprising:
Determination unit is configured to as terminal distribution transfer resource, and determines resource indication information corresponding with the transfer resource, wherein the time-domain position of the resource indication information and the sTTI for being used for transmission data are with corresponding relationship;
Transmission unit is configured to the resource indication information to terminal and sends PDCCH, so that the terminal determines the time-domain position of the sTTI of transmission data use based on the PDCCH.
Computer executable instructions are stored in computer storage medium provided in an embodiment of the present invention, the computer executable instructions are performed the data dispatching method for realizing the embodiment of the present invention.
In the technical solution of the embodiment of the present invention, terminal receives the PDCCH that base station is sent;The terminal is based on the PDCCH, determines resource indication information, wherein the resource indication information and the time-domain position for the short transmission time interval sTTI for being used for transmission data have corresponding relationship;The terminal is based on the resource indication information, determines the time-domain position for the sTTI that transmission data use.Using the technical solution of the embodiment of the present invention, realizing using the DCI being carried in PDCCH is the terminal distribution transfer resource that data are transmitted using sTTI, or utilizing the search space of PDCCH is the terminal distribution transfer resource that data are transmitted using sTTI.
Detailed description of the invention
Fig. 1 is the scene figure of the transmission mode 3 of the car-mounted terminal of the embodiment of the present invention;
Fig. 2 is the scene figure of the transmission mode 4 of the car-mounted terminal of the embodiment of the present invention;
Fig. 3 is that the sTTI of the present embodiment occupies the schematic diagram that a time slot carries out data transmission;
Fig. 4 is the flow diagram one of the data dispatching method of the embodiment of the present invention;
Fig. 5 is the structure chart of the subframe of the embodiment of the present invention;
Fig. 6 is the flow diagram two of the data dispatching method of the embodiment of the present invention;
Fig. 7 is the structure composition schematic diagram one of the data scheduling device of the embodiment of the present invention;
Fig. 8 is the structure composition schematic diagram two of the data scheduling device of the embodiment of the present invention;
Fig. 9 is the structure chart of the terminal of the embodiment of the present invention;
Figure 10 is the structure chart of the base station of the embodiment of the present invention.
Specific embodiment
The characteristics of in order to more fully hereinafter understand the embodiment of the present invention and technology contents, below with reference to The realization of the embodiment of the present invention is described in detail in attached drawing, appended attached drawing purposes of discussion only for reference, is not used to limit the embodiment of the present invention.
The following are the explanations of the relevant Key Term of the embodiment of the present invention:
LTE:Long Term Evaluation, long term evolution
V2V:Vehicle to Vehicle, vehicle to vehicle
V2X:Vehicle to Everything, vehicle to other equipment
D2D:Device to Device, terminal-to-terminal service
SA:Scheduling Assignment, dispatching distribution
DCI:Downlink Control Information, down link control information
SCI:Sidelink Control Information, sidelink control information
SFBC:Space Frequency Block Code, space-time/frequency block code
STBC:Space Time Block Code, Space-Time Block Coding
CDD:Cyclic Delay Diversity, cyclic delay diversity
DMRS:Demodulation Reference Signal, demodulated reference signal
STTI:short Transmission Time Interval, short transmission time interval
PDCCH:Physical Downlink Control Channel, downlink control channel
Car networking technology is standardized in 3GPP Rel-14, two kinds of transmission modes is defined, is respectively as follows: mode 3 and mode 4.Wherein,
For mode 3: the transfer resource of car-mounted terminal is distributed by base station (such as evolved node B (eNB, evolved NodeB)), as shown in Figure 1, the resource that car-mounted terminal is distributed according to base station carries out the transmission of data on sidelink;Base station can be the resource of terminal distribution single transmission, or the resource of the semi-static transmission of terminal distribution.
In mode 3, base station is that car-mounted terminal distributes resource by DCI, if terminal receives DCI in subframe n, first available subframe after n+4 carries out data transmission.In Rel-14, base station uses DCI format 5A for the transfer resource of terminal distribution V2X.
For mode 4: car-mounted terminal is using the transmission mode for listening to (sensing)+reserved (reservation).As shown in Fig. 2, car-mounted terminal obtains available sets of transmission resources in resource pool by way of listening to, terminal randomly selects the transmission that a resource carries out data from the sets of transmission resources.Since the business in car networking system has periodic feature, therefore terminal generallys use the mode of semi-static transmission, after i.e. terminal chooses a transfer resource, the use resource that will be lasting in multiple transmission cycles, to reduce the probability of resource gravity treatment and resource contention.Terminal can carry the information of reserved next transfer resource in the SCI of this transmission, so that other terminals can judge whether this block resource is reserved and used by the user by detecting the SCI of the user, achieve the purpose that reduce resource contention.
In car networking system, the content that car-mounted terminal transmits on sidelink is SCI+ data, wherein, what is carried in SCI is that data transmit corresponding control information, such as modulating-coding strategy (MCS, Modulation and Coding Scheme), time-frequency resource allocating information, resource reservation information etc., running time-frequency resource position and reserved information etc. that terminal obtains data by detection SCI are received, so as to judge which resource is available and which resource is unavailable.If car-mounted terminal cannot successfully detect SCI, the energy on each transfer resource can be measured, and all transfer resources are ranked up according to energy height, it is preferential choose the low resource of energy carry out using.
STTI is introduced in Rel-15, sTTI indicates that the data of user are transmitted using M OFDM symbol, rather than a complete subframe, for example, M=4;M=7.And it is required that the user of the sTTI of Rel-15 and user's common source pond of Rel-14, there cannot be large effect to the process that Rel-14 user resources are listened to and are chosen, therefore the user of Rel-14 is needed to be able to detect the SCI of Rel-15 user, the occupation condition of Rel-15 is known, to carry out listening to and choosing for resource.This just forces the SCI that the user of Rel-15 sends and Rel-14 is compatible, here, SCI compatible with Rel-14 in Rel-15 is known as normal SA, while in order to achieve the purpose that reduce Rel-15 time delay, the user of Rel-15 also needs to send short control information, here, short control information is known as short SA (sSA, short SA).The terminal of Rel-15 can know that data control information accordingly by detecting sSA, carry out the detection of data accordingly, without that could detect normal SA after the subframe (i.e. 1ms), therefore Time delay can be reduced.And the occupation condition that the terminal of Rel-14 knows the user of Rel-15 by detecting normal SA, to be listened to and be chosen.Therefore, the user of Rel-15 needs to send three kinds of information: normal SA, short SA, sTTI data.Fig. 3 is that the sTTI of the present embodiment occupies the schematic diagram that a time slot carries out data transmission, as shown in figure 3, sTTI occupies a time slot namely sTTI occupies 7 OFDM symbols, terminal needs to send three kinds of information: normal SA, short SA, sTTI data.
As shown in Figure 3, sTTI can take up first time slot of subframe, either second time slot, if the scheduling information (carrying in DCI) of base station is scheduled based on subframe, it is the problem of embodiment of the present invention aims to solve the problem that how base station, which is using the terminal distribution resource of sTTI transmission data using DCI,.
Fig. 4 is the flow diagram one of the data dispatching method of the embodiment of the present invention, and the data dispatching method in this example is applied to terminal side, as shown in figure 4, the data dispatching method the following steps are included:
Step 401: terminal receives the PDCCH that base station is sent.
In the embodiment of the present invention, terminal receives the PDCCH that base station is sent, and here, terminal can be implemented in a variety of manners.Such as, terminal described in the embodiment of the present invention may include such as mobile unit, mobile phone, tablet computer, laptop, palm PC, personal digital assistant (Personal Digital Assistant, PDA), the mobile terminals such as portable media player (Portable Media Player, PMP), navigation device, wearable device, Intelligent bracelet, pedometer.Base station can implement in a variety of manners.For example, base station described in the embodiment of the present invention may include the base station equipment in eNB and future 5G system.
In the embodiment of the present invention, PDCCH refers to that the down control channel of terminal is issued in base station, DCI is carried in PDCCH, DCI includes the resource allocation information of uplink and downlink, hybrid automatic repeat-request (HARQ, Hybrid Automatic Repeat reQuest) information, power control information etc..
Step 402: the terminal is based on the PDCCH, determines resource indication information, wherein the resource indication information and the time-domain position for the sTTI for being used for transmission data have corresponding relationship.
In the embodiment of the present invention, resource indication information can be realized by following three kinds of modes:
Mode one: the resource indication information is characterized by the N bits in the DCI that is carried in the PDCCH, N is positive integer, wherein different bit informations corresponds to the time-domain position of different sTTI.
Based on this, terminal is based on the PDCCH, determine resource indication information, specifically refer to: the terminal detects the PDCCH, the information for obtaining being carried on the N bits in the DCI in the PDCCH based on testing result, using the information of the N bits as the resource indication information.
Mode two: the resource indication information is characterized by mask that the PDCCH is carried, wherein different masks corresponds to the time-domain position of different sTTI.
Based on this, the terminal be based on the PDCCH, determine resource indication information, in particular to: the terminal detects the PDCCH, and the mask carried in the PDCCH is obtained based on testing result, using the mask as the resource indication information.
Here, the bit information of bit information and cyclic redundancy check based on the DCI, obtains the first bit sequence;Based on first bit sequence, scrambler sequence and mask code sequence, the DCI is obtained through scrambling code and scrambled code treated sequence.
Mode three: the resource indication information is characterized by the search space of the PDCCH, wherein different search spaces corresponds to the time-domain position of different sTTI.
Based on this, the terminal be based on the PDCCH, determine resource indication information, in particular to: the terminal determines the search space of the PDCCH, using the search space of the PDCCH as the resource indication information.
Here, search space includes: the proprietary search space of terminal, public search space, wherein the proprietary search space of terminal or the public search space can be divided into multiple subspaces again.
The different search space refers to:
The proprietary search space of terminal and public search space belong to different search spaces;Alternatively,
Different subspace in the proprietary search space of terminal belongs to different search spaces;Alternatively,
Different subspace in the public search space belongs to different search spaces.
In the above scheme of the embodiment of the present invention, subframe includes M1 time slot, wherein each time slot characterizes a sTTI, and correspondingly, the time-domain position of the sTTI is characterized by corresponding slot index, and M1 is positive integer;Alternatively, subframe includes M2 sTTI, k-th of sTTI in the M2 sTTI includes Lk OFDM symbol, and correspondingly, the time-domain position of the sTTI is characterized by corresponding sTTI serial number, wherein M2, and k, Lk are positive integer, 1≤k≤M2,1≤Lk≤14.
Step 403: the terminal is based on the resource indication information, determines the time-domain position for the sTTI that transmission data use.
It is described further below with reference to technical solution of the concrete application scene to the embodiment of the present invention.
Application scenarios one
Specific bit position is for describing resource indication information in DCI, specifically, the position for the sTTI that transmission data use namely the time-domain resource of sTTI is characterized by the N bits in DCI.
For example, N=1, for timeslot-based sTTI, indicate DCI scheduling with 1 bit information in DCI is first time slot or second time slot in subframe, as shown in table 1 below:
Resource indication information (1 bit) The position of sTTI in subframe
0 First time slot
1 Second time slot
Table 1
Wherein, if resource indication information is 0, show that the position of sTTI is first time slot in subframe, if resource indication information is 1, show that the position of sTTI is second time slot in subframe.
For example, N=2, a subframe includes 4 sTTI (as shown in Figure 5), and that indicate DCI scheduling with 2 bit informations in DCI is which sTTI in subframe, as shown in table 2 below:
Resource indication information (2 bit) The position of sTTI in subframe
00 sTTI 0
01 sTTI 1
10 sTTI 2
11 sTTI 3
Table 2
Wherein, if resource indication information is 00, the position for then showing sTTI is the sTTI 0 in subframe, if resource indication information is 01, the position for then showing sTTI is the sTTI 1 in subframe, if resource indication information is 10, shows that the position of sTTI is the sTTI 2 in subframe, if resource indication information is 11, show that the position of sTTI is the sTTI 3 in subframe.
Application scenarios two
The position for the sTTI that transmission data use is characterized by different masks, specifically, DCI information is by adding cyclic redundancy check (CRC, Cyclic Redundancy Check) after information, recycle radio network temporary identifier (RNTI, Radio Network Tempory Identity) sequence scrambling and by mask code sequence progress mask processing, obtain by scrambling code and the processed DCI information of mask.That DCI scheduling is indicated by different masks is which sTTI in subframe.
Such as: timeslot-based sTTI, DCI scheduling is indicated using mask as shown in table 3 below is which time slot in subframe:
Table 3
Such as: if a subframe includes 4 sTTI, that DCI scheduling can be indicated by mask as shown in table 4 below is which sTTI in subframe:
Table 4
It is worth noting that, the present embodiment does not limit specific mask code sequence, different time slots can be distinguished using other mask code sequences.
In above scheme, following treatment process can be used to the processing of DCI information:
1) bit information of DCI indicates are as follows: a0,a1,a2,a3,...,aA-1, the bit information of CRC check is p0,p1,p2,p3,...,pL-1, wherein A indicates that the bit length of information, L indicate check bit length.By adding the bit sequence (namely first bit sequence) of CRC to be expressed as b0,b1,b2,b3,...,bB-1, wherein B=A+L, specifically:
When k=0,1,2 ..., A-1, bk=ak
When k=A, A+1, A+2 ..., A+L-1, bk=pk-A
2) to adding the bit sequence after CRC scramble and add mask processing, in the present embodiment, scrambler sequence is by corresponding RNTI namely xrnti,0,xrnti,1,...,xrnti,15It determines, mask code sequence xmask, it is scrambled and plus mask processing after sequence be c0,c1,c2,c3,...,cB-1, wherein
When k=0,1,2 ..., A-1, ck=bk
When k=A, A+1, A+2 ..., A+15, ck=(bk+xrnti,k-A+xmask,k-A)mod2
Application scenarios three
The position for the sTTI that transmission data use is characterized by PDCCH different search spaces.Here, search space is divided into the proprietary search space of terminal (UE-specific search space) and public search space (Common search space).That base station can use the mode of the transmission PDCCH in different search spaces to indicate PDCCH scheduling is which sTTI in subframe.Terminal can also be determined by the search space where PDCCH the PDCCH scheduling be in subframe which sTTI。
Such as: timeslot-based sTTI can indicate first sTTI in scheduling subframe by sending PDCCH in proprietary search space, PDCCH is sent in public search space to indicate second sTTI in scheduling subframe, as shown in table 5 below:
  The position of sTTI in subframe
Proprietary search space First time slot
Public search space Second time slot
Table 5
Such as: a subframe includes four sTTI, it can be four sub-spaces by public search space or the proprietary search space partition of terminal, wherein k-th of the sTTI in PDCCH instruction scheduling subframe sent in k-th of subspace, k=1,2,3,4, as shown in table 6 below:
  The position of sTTI in subframe
Subspace 0 sTTI 0
Subspace 1 sTTI 1
Subspace 2 sTTI 2
Subspace 3 sTTI 3
Table 6
The above scheme of the embodiment of the present invention is illustrated so that a subframe includes 2 or 4 sTTI as an example, it will be appreciated by those skilled in the art that can also include the sTTI of other numbers in subframe.
Fig. 6 is the flow diagram two of the data dispatching method of the embodiment of the present invention, and the data dispatching method in this example is applied to base station side, as shown in fig. 6, the data dispatching method the following steps are included:
Step 601: base station is terminal distribution transfer resource, and determines resource indication information corresponding with the transfer resource, wherein the resource indication information and the time-domain position for the sTTI for being used for transmission data have corresponding relationship.
In the embodiment of the present invention, base station is that terminal distribution transfer resource namely base station determine first first It is used for transmission the time-domain position of the sTTI of data, later, determines resource indication information corresponding with the transfer resource.
In one embodiment, subframe includes M1 time slot, wherein each time slot characterizes a sTTI, and correspondingly, the time-domain position of the sTTI is characterized by corresponding slot index, and M1 is positive integer.
In another embodiment, subframe includes M2 sTTI, and k-th of sTTI in the M2 sTTI includes Lk OFDM symbol, correspondingly, the time-domain position of the sTTI is characterized by corresponding sTTI serial number, wherein M2, k, Lk is positive integer, 1≤k≤M2,1≤Lk≤14.
Step 602: the base station is based on the resource indication information and sends PDCCH to terminal, so that the terminal determines the time-domain position of the sTTI of transmission data use based on the PDCCH.
In the embodiment of the present invention, resource indication information can be realized by following three kinds of modes:
Mode one: the resource indication information is characterized by the N bits in the DCI that is carried in the PDCCH, and N is positive integer, wherein different bit informations corresponds to the time-domain position of different sTTI.
Correspondingly, the resource indication information is arranged in base station in the DCI by N bits;The PDCCH for carrying the DCI is sent to the terminal by base station.
Mode two: the resource indication information is characterized by the mask that the PDCCH is carried, wherein different masks corresponds to the time-domain position of different sTTI.
Here, the bit information of bit information and cyclic redundancy check based on the DCI, obtains the first bit sequence;Based on first bit sequence, scrambler sequence and mask code sequence, the DCI is obtained through scrambling code and adds mask treated sequence.
Correspondingly, the mask for characterizing the resource indication information is arranged in base station in the PDCCH;The PDCCH for carrying the mask is sent to the terminal by base station.
Mode three: the resource indication information is characterized by the search space of the PDCCH, wherein different search spaces corresponds to the time-domain position of different sTTI.
Correspondingly, base station sends the PDCCH to the terminal in the search space of selection.
Here, different search spaces refers to:
The proprietary search space of terminal and public search space belong to different search spaces;Alternatively,
Different subspace in the proprietary search space of terminal belongs to different search spaces;Alternatively,
Different subspace in the public search space belongs to different search spaces.
Fig. 7 is the structure composition schematic diagram one of the data scheduling device of the embodiment of the present invention, and the data scheduling device in this example is applied to terminal side, as shown in fig. 7, described device includes:
Receiving unit 701 is configured to receive the PDCCH that base station is sent;
First determination unit 702, configuration are based on the PDCCH, determine resource indication information, wherein the resource indication information and the time-domain position for the sTTI for being used for transmission data have corresponding relationship;
Second determination unit 703 is configured to the resource indication information, determines the time-domain position for the sTTI that transmission data use.
In the embodiment of the present invention, the resource indication information is characterized by the N bits in the down link control information DCI that is carried in the PDCCH, N is positive integer, wherein different bit informations corresponds to the time-domain position of different sTTI.
First determination unit 702, concrete configuration are as follows: the PDCCH is detected, obtains being carried on the information of the N bits in the DCI in the PDCCH based on testing result, using the information of the N bits as the resource indication information.
In the embodiment of the present invention, the resource indication information is characterized by mask that the PDCCH is carried, wherein different masks corresponds to the time-domain position of different sTTI.
First determination unit 702, concrete configuration are as follows: the PDCCH is detected, the mask carried in the PDCCH is obtained based on testing result, using the mask as the resource indication information.
Here, the bit information of bit information and cyclic redundancy check based on the DCI, obtains the first bit sequence;Based on first bit sequence, scrambler sequence and mask code sequence, the DCI is obtained through scrambling code and adds mask treated sequence.
In the embodiment of the present invention, the resource indication information is characterized by the search space of the PDCCH, wherein different search spaces corresponds to the time-domain position of different sTTI.
First determination unit 702, concrete configuration are as follows: the search space for determining the PDCCH, using the search space of the PDCCH as the resource indication information.
Here, the different search space refers to:
The proprietary search space of terminal and public search space belong to different search spaces;Alternatively,
Different subspace in the proprietary search space of terminal belongs to different search spaces;Alternatively,
Different subspace in the public search space belongs to different search spaces.
In the above scheme of the embodiment of the present invention, subframe includes M1 time slot, wherein each time slot characterizes a sTTI, and correspondingly, the time-domain position of the sTTI is characterized by corresponding slot index, and M1 is positive integer;Alternatively, subframe includes M2 sTTI, k-th of sTTI in the M2 sTTI includes Lk OFDM symbol, and correspondingly, the time-domain position of the sTTI is characterized by corresponding sTTI serial number, wherein M2, and k, Lk are positive integer, 1≤k≤M2,1≤Lk≤14.
It will be appreciated by those skilled in the art that the realization function of each unit in device shown in Fig. 7 can refer to the associated description of preceding method and understand.The function of each unit in device shown in Fig. 7 can be realized and running on the program on processor, can also be realized by specific logic circuit.
Fig. 8 is the structure composition schematic diagram two of the data scheduling device of the embodiment of the present invention, and the data scheduling device in this example is applied to base station side, as shown in figure 8, described device includes:
Determination unit 801 is configured to as terminal distribution transfer resource, and determines resource indication information corresponding with the transfer resource, wherein the time-domain position of the resource indication information and the sTTI for being used for transmission data are with corresponding relationship;
Transmission unit 802 is configured to the resource indication information to terminal and sends PDCCH, so that the terminal determines the time-domain position of the sTTI of transmission data use based on the PDCCH.
In the embodiment of the present invention, the resource indication information is characterized by the N bits in the DCI that is carried in the PDCCH, and N is positive integer, wherein different bit informations is corresponding different STTI time-domain position.
Described device further include: processing unit (not shown) is configured to that the resource indication information is arranged by N bits in the DCI;
The transmission unit 802, concrete configuration are as follows: the PDCCH for carrying the DCI is sent to the terminal.
In the embodiment of the present invention, the resource indication information is characterized by the mask that the PDCCH is carried, wherein different masks corresponds to the time-domain position of different sTTI.
The processing unit is configured to the mask that the setting in the PDCCH characterizes the resource indication information;
The transmission unit 802, concrete configuration are as follows: the PDCCH for carrying the mask is sent to the terminal.
The processing unit is additionally configured to the bit information of bit information and cyclic redundancy check based on the DCI, obtains the first bit sequence;Based on first bit sequence, scrambler sequence and mask code sequence, the DCI is obtained through scrambling code and adds mask treated sequence.
In the embodiment of the present invention, the resource indication information is characterized by the search space of the PDCCH, wherein different search spaces corresponds to the time-domain position of different sTTI.
The transmission unit 802, concrete configuration are as follows: send the PDCCH to the terminal in the search space of selection.
Here, the different search space refers to:
The proprietary search space of terminal and public search space belong to different search spaces;Alternatively,
Different subspace in the proprietary search space of terminal belongs to different search spaces;Alternatively,
Different subspace in the public search space belongs to different search spaces.
In the embodiment of the present invention, subframe includes M1 time slot, wherein each time slot characterizes a sTTI, and correspondingly, the time-domain position of the sTTI is characterized by corresponding slot index, and M1 is positive integer;Alternatively, subframe includes M2 sTTI, k-th of sTTI in the M2 sTTI Including Lk OFDM symbol, correspondingly, the time-domain position of the sTTI is characterized by corresponding sTTI serial number, wherein M2, and k, Lk are positive integer, 1≤k≤M2,1≤Lk≤14.
It will be appreciated by those skilled in the art that the realization function of each unit in device shown in Fig. 8 can refer to the associated description of preceding method and understand.The function of each unit in device shown in Fig. 8 can be realized and running on the program on processor, can also be realized by specific logic circuit.
The embodiment of the invention also provides a kind of terminals, as shown in figure 9, the terminal includes: at least one processor 901, memory 902, at least one network interface 904 and user interface 903.Various components in terminal are coupled by bus system 905.It is understood that bus system 905 is for realizing the connection communication between these components.Bus system 905 further includes power bus, control bus and status signal bus in addition in addition to including data/address bus.But for the sake of clear explanation, various buses are all designated as bus system 905 in Fig. 9.
Wherein, user interface 903 may include display, keyboard, key or pointing device, for example, mouse, trace ball (trackball), touch-sensitive plate or touch screen etc..
It it is appreciated that the memory 902 in the embodiment of the present invention can be volatile memory or nonvolatile memory, or may include both volatile and non-volatile memories.
In some embodiments, memory 902 stores following element, executable modules or data structures perhaps their subset or their superset:
Operating system 9021 and application program 9022.
In embodiments of the present invention, the processor 901, which is configured that, receives the PDCCH that base station is sent;Based on the PDCCH, resource indication information is determined, wherein the resource indication information and the time-domain position for the sTTI for being used for transmission data have corresponding relationship;Based on the resource indication information, the time-domain position for the sTTI that transmission data use is determined.
The embodiment of the invention also provides a kind of base stations, and as shown in Figure 10, which includes: at least one processor 1001, memory 1002, at least one network interface 1003.Various components in base station are coupled by bus system 1004.It is understood that bus system 1004 is for realizing these groups Connection communication between part.Bus system 84 further includes power bus, control bus and status signal bus in addition in addition to including data/address bus.But for the sake of clear explanation, various buses are all designated as bus system 1004 in Figure 10.
It it is appreciated that the memory 1002 in the embodiment of the present invention can be volatile memory or nonvolatile memory, or may include both volatile and non-volatile memories.
In some embodiments, memory 1002 stores following element, executable modules or data structures perhaps their subset or their superset:
Operating system 10021 and application program 10022.
Wherein, the processor 1001 is configured that as terminal distribution transfer resource, and determines resource indication information corresponding with the transfer resource, wherein the time-domain position of the resource indication information and the sTTI for being used for transmission data are with corresponding relationship;PDCCH is sent to terminal based on the resource indication information, so that the terminal determines the time-domain position of the sTTI of transmission data use based on the PDCCH.
If above-mentioned apparatus of the embodiment of the present invention is realized and when sold or used as an independent product in the form of software function module, also can store in a computer readable storage medium.Based on this understanding, substantially the part that contributes to existing technology can be embodied in the form of software products the technical solution of the embodiment of the present invention in other words, the computer software product is stored in a storage medium, and is used including some instructions so that a computer equipment (can be personal computer, server or network equipment etc.) executes all or part of each embodiment the method for the present invention.And storage medium above-mentioned includes: the various media that can store program code such as USB flash disk, mobile hard disk, read-only memory (ROM, Read Only Memory), magnetic or disk.It is combined in this way, the embodiment of the present invention is not limited to any specific hardware and software.
Correspondingly, the embodiment of the present invention also provides a kind of computer storage medium, wherein being stored with computer program, which is configured to execute the data dispatching method of the embodiment of the present invention.
Although for illustrative purposes, the preferred embodiment of the present invention, those skilled in the art has been disclosed Member will recognize it is various improve, increase and replace be also it is possible, therefore, the scope of the present invention should be not limited to the above embodiments.

Claims (27)

  1. A kind of data dispatching method, which comprises
    Terminal receives the downlink control channel PDCCH that base station is sent;
    The terminal is based on the PDCCH, determines resource indication information, wherein the resource indication information and the time-domain position for the short transmission time interval sTTI for being used for transmission data have corresponding relationship;
    The terminal is based on the resource indication information, determines the time-domain position for the sTTI that transmission data use.
  2. Data dispatching method according to claim 1, wherein, the resource indication information is characterized by the N bits in the down link control information DCI that is carried in the PDCCH, N is positive integer, wherein, different bit informations corresponds to the time-domain position of different sTTI.
  3. Data dispatching method according to claim 2, wherein the terminal is based on the PDCCH, determines resource indication information, comprising:
    The terminal detects the PDCCH, obtains being carried on the information of the N bits in the DCI in the PDCCH based on testing result, using the information of the N bits as the resource indication information.
  4. Data dispatching method according to claim 1, wherein the resource indication information is characterized by mask that the PDCCH is carried, wherein different masks corresponds to the time-domain position of different sTTI.
  5. Data dispatching method according to claim 4, wherein the terminal is based on the PDCCH, determines resource indication information, comprising:
    The terminal detects the PDCCH, and the mask carried in the PDCCH is obtained based on testing result, using the mask as the resource indication information.
  6. Data dispatching method according to claim 1, wherein pass through the PDCCH Search space characterize the resource indication information, wherein different search spaces corresponds to the time-domain position of different sTTI.
  7. Data dispatching method according to claim 6, wherein the terminal is based on the PDCCH, determines resource indication information, comprising:
    The terminal determines the search space of the PDCCH, using the search space of the PDCCH as the resource indication information.
  8. Data dispatching method according to claim 6, wherein the different search space refers to:
    The proprietary search space of terminal and public search space belong to different search spaces;Alternatively,
    Different subspace in the proprietary search space of terminal belongs to different search spaces;Alternatively,
    Different subspace in the public search space belongs to different search spaces.
  9. Data dispatching method according to any one of claims 1 to 8, wherein
    Subframe includes M1 time slot, wherein each time slot characterizes a sTTI, and correspondingly, the time-domain position of the sTTI is characterized by corresponding slot index, and M1 is positive integer;Alternatively,
    Subframe includes M2 sTTI, and k-th of sTTI in the M2 sTTI includes Lk OFDM symbol, and correspondingly, the time-domain position of the sTTI is characterized by corresponding sTTI serial number, wherein M2, and k, Lk are positive integer, 1≤k≤M2,1≤Lk≤14.
  10. A kind of data dispatching method, which comprises
    Base station is terminal distribution transfer resource, and determines resource indication information corresponding with the transfer resource, wherein the resource indication information and the time-domain position for the sTTI for being used for transmission data have corresponding relationship;
    The base station is based on the resource indication information and sends PDCCH to terminal, so that the terminal determines the time-domain position of the sTTI of transmission data use based on the PDCCH.
  11. Data dispatching method according to claim 10, wherein the resource indication information is characterized by the N bits in the DCI that is carried in the PDCCH, and N is positive whole Number, wherein different bit informations corresponds to the time-domain position of different sTTI.
  12. Data dispatching method according to claim 11, wherein the base station sends PDCCH to terminal according to the resource indication information, comprising:
    The resource indication information is arranged by N bits in the DCI in the base station;
    The PDCCH for carrying the DCI is sent to the terminal by the base station.
  13. Data dispatching method according to claim 10, wherein the resource indication information is characterized by the mask that the PDCCH is carried, wherein different masks corresponds to the time-domain position of different sTTI.
  14. Data dispatching method according to claim 13, wherein the base station sends PDCCH to terminal according to the resource indication information, comprising:
    The mask for characterizing the resource indication information is arranged in the base station in the PDCCH;
    The PDCCH for carrying the mask is sent to the terminal by the base station.
  15. Data dispatching method according to claim 10, wherein the resource indication information is characterized by the search space of the PDCCH, wherein different search spaces corresponds to the time-domain position of different sTTI.
  16. Data dispatching method according to claim 15, wherein the base station sends PDCCH to terminal according to the resource indication information, comprising:
    The base station sends the PDCCH to the terminal in the search space of selection.
  17. Data dispatching method according to claim 15, wherein the different search space refers to:
    The proprietary search space of terminal and public search space belong to different search spaces;Alternatively,
    Different subspace in the proprietary search space of terminal belongs to different search spaces;Alternatively,
    Different subspace in the public search space belongs to different search spaces.
  18. Data dispatching method according to any one of claims 10 to 17, wherein
    Subframe includes M1 time slot, wherein each time slot characterizes a sTTI, correspondingly, institute The time-domain position for stating sTTI is characterized by corresponding slot index, and M1 is positive integer;Alternatively,
    Subframe includes M2 sTTI, and k-th of sTTI in the M2 sTTI includes Lk OFDM symbol, and correspondingly, the time-domain position of the sTTI is characterized by corresponding sTTI serial number, wherein M2, and k, Lk are positive integer, 1≤k≤M2,1≤Lk≤14.
  19. A kind of data scheduling device, described device include:
    Receiving unit is configured to receive the PDCCH that base station is sent;
    First determination unit is configured to the PDCCH, determines resource indication information, wherein the resource indication information and the time-domain position for the sTTI for being used for transmission data have corresponding relationship;
    Second determination unit is configured to the resource indication information, determines the time-domain position for the sTTI that transmission data use.
  20. Data scheduling device according to claim 19, wherein characterize the resource indication information by the N bits in the DCI that is carried in the PDCCH, N is positive integer, wherein different bit informations corresponds to the time-domain position of different sTTI.
  21. Data scheduling device according to claim 19, wherein the resource indication information is characterized by mask that the PDCCH is carried, wherein different masks corresponds to the time-domain position of different sTTI.
  22. Data scheduling device according to claim 19, wherein the resource indication information is characterized by the search space of the PDCCH, wherein different search spaces corresponds to the time-domain position of different sTTI.
  23. A kind of data scheduling device, described device include:
    Determination unit is configured to as terminal distribution transfer resource, and determines resource indication information corresponding with the transfer resource, wherein the time-domain position of the resource indication information and the sTTI for being used for transmission data are with corresponding relationship;
    Transmission unit is configured to the resource indication information to terminal and sends PDCCH, so that the terminal determines the time-domain position of the sTTI of transmission data use based on the PDCCH.
  24. Data scheduling device according to claim 23, wherein the resource indication information is characterized by the N bits in the DCI that is carried in the PDCCH, and N is positive integer, wherein different bit informations corresponds to the time-domain position of different sTTI.
  25. Data scheduling device according to claim 23, wherein the resource indication information is characterized by the mask that the PDCCH is carried, wherein different masks corresponds to the time-domain position of different sTTI.
  26. Data scheduling device according to claim 23, wherein the resource indication information is characterized by the search space of the PDCCH, wherein different search spaces corresponds to the time-domain position of different sTTI.
  27. A kind of computer storage medium, the computer storage medium are stored with computer executable instructions, and the computer executable instructions, which are performed, realizes the described in any item method and steps of claim 1 to 18.
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