CN108811106A

CN108811106A - A kind of scheduled transmission method and apparatus

Info

Publication number: CN108811106A
Application number: CN201710309351.4A
Authority: CN
Inventors: 林祥利; 高雪娟; 潘学明
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2017-05-04
Filing date: 2017-05-04
Publication date: 2018-11-13
Anticipated expiration: 2037-05-04
Also published as: CN108811106B

Abstract

The present embodiments relate to a kind of field of communication technology more particularly to scheduled transmission method, base station and terminals, including：The resource scheduling request that base station is sent according to terminal, it is determined as the occupied symbol quantity of Transmission Time Interval TTI quantity N and each TTI of terminal scheduling, the TTI is short TTI and the length of the TTI is less than an occupied symbolic number of subframe, and N is positive integer and N > 1；The base station determines the reference signal pattern of the terminal according to the occupied symbolic number of quantity N and each TTI of the TTI；The base station is based on the reference signal pattern, receives the reference signal that the terminal is sent.It can be seen that, base station is according to the occupied symbolic number of quantity N and each TTI of TTI, it can directly determine the reference signal pattern of terminal, and it is based on the reference signal pattern, receive the reference signal that the terminal is sent, and without distributing indication signaling for each TTI, so as to reduce the expense of indication signaling.

Description

A kind of scheduled transmission method and apparatus

Technical field

The present embodiments relate to the communications field more particularly to a kind of scheduled transmission method and apparatus.

Background technology

Existing LTE (Long Term Evolution, long term evolution) FDD (Frequency Division Dual, frequency division Duplex) frame structure Class1 (frame structure type 1, abbreviation FS1) is used in system, structure is as shown in Figure 1.? In FDD system, uplink and downlink transmission uses different carrier frequencies, uplink and downlink transmission to use identical frame structure. On each carrier, the radio frames of a 10ms length include 10 1ms subframes, and each subframe is interior by being divided into two 0.5ms Long time slot.A length of 1ms when the TTI that uplink and downlink data are sent.

Existing LTE (Long Term Evolution, long term evolution) TDD ((Time Division Duplexing, when Point duplex) frame structure type 2 (frame structure type 2, abbreviation FS2) is used in system, as shown in Figure 2.In TDD In system, uplink and downlink transmission uses the different subframes or different time-gap in identical frequency.Subframe in FS2 is divided into three Class：Downlink subframe, sub-frame of uplink and special subframe, each special subframe is by downlink transfer time slot (DwPTS, Downlink Pilot Time Slot), protection interval (GP, Guard Perid) and upstream transmission time slot (UpPTS, Uplink Pilot Time Slot) three parts composition.Include at least one downlink subframe and at least one sub-frame of uplink, and at most 1 in each field A special subframe.

With the development and change of mobile communication business demand, ITU (International Telecommunications Union, International Telecommunications Union) etc. multiple tissues higher user plane delay performance both defined to future mobile communication system want It asks.One of the main method for shortening user's delay performance is to reduce TTI (Transmission Time Interval, when transmission Between be spaced) length.May include multiple short TTI transmission in a conventional subframe, when base station continuously dispatch multiple short TTI into When row transmission, scheduled multiple TTI be how transmission data and DMRS (DeModulation Reference Signal, solution Adjust DRS (Dedicated Reference Signal)) there is presently no specific solutions.

Due in existing LTE system, the solution of clearly not multiple short TTI continuously dispatched, therefore, when multiple When the scheduled transmission of the short TTI of uplink, if base station is indicated respectively for the transmission structure of each scheduled short TTI, need Want many indication signaling expenses.

To sum up, how to reduce indication signaling expense in multiple short TTI scheduling becomes technical problem urgently to be resolved hurrily.

Invention content

A kind of scheduled transmission method of offer of the embodiment of the present invention, base station and terminal, to realize in multiple short TTI scheduling Reduce the expense of indication signaling.

The embodiment of the present invention provides a kind of scheduled transmission method, including：

The resource scheduling request that base station is sent according to terminal is determined as the Transmission Time Interval TTI numbers of the terminal scheduling N and the occupied symbol quantities of each TTI are measured, the TTI is short TTI and the length of the TTI is less than shared by a subframe Symbolic number, N are positive integer and N > 1；

The base station determines the ginseng of the terminal according to the occupied symbolic number of quantity N and each TTI of the TTI Examine signal pattern；

The base station is based on the reference signal pattern, receives the reference signal that the terminal is sent.

Preferably, the base station determines the end according to the occupied symbolic number of quantity N and each TTI of the TTI The reference signal pattern at end, including：

The base station is according to the occupied symbolic number of quantity N and each TTI of the TTI, from pre-defined reference The reference signal pattern of the terminal is determined in signal pattern set；

The base station generates scheduling instruction information and is sent to the terminal, the tune according to the reference signal pattern Degree instruction information is used to indicate the terminal and chooses reference signal pattern from the reference pattern set.

Preferably, pre-defining the reference signal pattern set in the following manner：

According to the subframe structure belonging to the short TTI symbol numbers occupied and short TTI, the quantity of TTI to be scheduled is determined X, X are positive integer and X > 1；

Y seed ginsengs are set according to reference signal setting rule for the occupied symbol quantities of each TTI in X TTI Signal pattern is examined, the reference signal setting rule carrys out transmission of reference signals for a symbol is at most arranged in each TTI, and One symbol is at least set in the X TTI and carrys out transmission of reference signals, Y is positive integer and Y > 1；

Signal pattern is referred to according to the Y kinds of setting, predefines reference signal pattern set.

Preferably, the reference signal setting rule further includes：

When in the subframe structure that the occupied symbols of the last one TTI in the X TTI are belonging to the short TTI When last symbol, the occupied last symbols of the last one TTI are not used in transmission demodulation DRS (Dedicated Reference Signal) DMRS。

Terminal receives the dispatch that base station is sent, and it is the terminal scheduling that the base station is carried in the dispatch The occupied symbol quantity of Transmission Time Interval TTI quantity N and each TTI, the TTI are the length of short TTI and the TTI Less than the one occupied symbolic number of subframe, N are positive integer and N > 1；

The terminal determines reference signal pattern according to the dispatch；

The terminal sends reference signal according to the reference signal pattern, to the base station.

Preferably, the terminal determines reference signal pattern according to the dispatch, including：

The terminal determines the ginseng of the terminal according to the TTI quantity N and the occupied symbol quantities of each TTI Examine signal pattern；Or,

The dispatch further includes scheduling instruction information, and the scheduling indicates that information is used to indicate the terminal from advance Reference signal pattern is chosen in the reference pattern set of definition；

The terminal indicates information according to the scheduling, and reference signal pattern is chosen from the reference pattern set.

The embodiment of the present invention also provides a kind of base station, including：

First determining module, the resource scheduling request for being sent according to terminal, is determined as the transmission of the terminal scheduling The occupied symbol quantity of time interval TTI quantity N and each TTI, the TTI is short TTI and the length of the TTI is less than One occupied symbolic number of subframe, N are positive integer and N > 1；

It is additionally operable to the occupied symbolic number of quantity N and each TTI according to the TTI, determines the reference of the terminal Signal pattern；

First receiving module receives the reference signal that the terminal is sent for being based on the reference signal pattern.

Preferably, first determining module, is specifically used for：

The occupied symbols of the last one TTI in the X TTI are in the subframe structure belonging to the short TTI When last symbol, the occupied last symbols of the last one TTI are not used in transmission demodulation DRS (Dedicated Reference Signal) DMRS。

The embodiment of the present invention also provides a kind of terminal, including：

Second receiving module, the dispatch for receiving base station transmission, carrying the base station in the dispatch is The occupied symbol quantity of Transmission Time Interval TTI quantity N and each TTI of the terminal scheduling, the TTI are short TTI And the length of the TTI is less than an occupied symbolic number of subframe, N is positive integer and N > 1；

Second determining module, for according to the dispatch, determining reference signal pattern；

Sending module, for according to the reference signal pattern, reference signal to be sent to the base station.

Preferably, second determining module, is specifically used for：

According to the TTI quantity N and the occupied symbol quantities of each TTI, the reference signal figure of the terminal is determined Sample；Or,

Information is indicated according to the scheduling, and reference signal pattern is chosen from the reference pattern set.

The scheduled transmission method and base station that above-described embodiment provides, including：Base station is asked according to the scheduling of resource that terminal is sent It asks, is determined as the occupied symbol quantity of Transmission Time Interval TTI quantity N and each TTI of the terminal scheduling, it is described TTI is short TTI and the length of the TTI is less than an occupied symbolic number of subframe, and N is positive integer and N > 1；The base station According to the quantity N of the TTI and the occupied symbolic numbers of each TTI, the reference signal pattern of the terminal is determined；The base It stands and is based on the reference signal pattern, receive the reference signal that the terminal is sent.As can be seen that quantity N of the base station according to TTI And the occupied symbolic numbers of each TTI, it can directly determine the reference signal pattern of terminal, and be based on the reference signal figure Sample receives the reference signal that the terminal is sent, and without distributing indication signaling for each TTI, so as to reduce The expense of indication signaling.

The kind scheduled transmission method and terminal that above-described embodiment provides, including：Terminal receives the dispatch that base station is sent, It is carried in the dispatch shared by Transmission Time Interval the TTI quantity N and each TTI that the base station is the terminal scheduling Symbol quantity, the TTI is short TTI and the length of the TTI is less than an occupied symbolic number of subframe, and N is just whole Number and N > 1；The terminal determines reference signal pattern according to the dispatch；The terminal is according to the reference signal figure Sample sends reference signal to the base station.As can be seen that terminal according to dispatch, can directly determine reference signal pattern, and According to the reference signal pattern, reference signal is sent to the base station, therefore, base station does not have to distribute instruction for each TTI Signaling, so as to reduce the expense of indication signaling.

Description of the drawings

To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment Attached drawing is briefly introduced.

Fig. 1 is the structural schematic diagram of frame structure Class1 in LTE system in the prior art；

Fig. 2 is the structural schematic diagram of frame structure type 2 in LTE system in the prior art；

Fig. 3 is a kind of flow diagram of scheduled transmission method provided in an embodiment of the present invention；

Fig. 4 is the method flow schematic diagram of pre-defined reference signal pattern set provided in an embodiment of the present invention；

Fig. 5 is the structural schematic diagram of the subframe structure belonging to short TTI provided in an embodiment of the present invention；

Fig. 6 is the structural schematic diagram of the subframe structure belonging to the short TTI of another kind provided in an embodiment of the present invention；

Fig. 7 is the structural schematic diagram of the subframe structure belonging to the short TTI of another kind provided in an embodiment of the present invention；

Fig. 8 is the flow diagram of another scheduled transmission method provided in an embodiment of the present invention；

Fig. 9 is the structural representation of DMRS patterns set provided by Embodiment 2 of the present invention；

Figure 10 is the structural representation for the DMRS pattern set that the embodiment of the present invention three provides；

Figure 11 is the structural representation for the DMRS pattern set that the embodiment of the present invention four provides；

Figure 12 is the structural representation for the DMRS patterns that the embodiment of the present invention five provides；

Figure 13 is the structural representation for the DMRS patterns that the embodiment of the present invention six provides；

Figure 14 is the structural representation for the base station that the embodiment of the present invention six provides；

Figure 15 is the structural representation for the terminal that the embodiment of the present invention six provides.

Specific implementation mode

In order to make the purpose of the present invention, technical solution and advantageous effect be more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used to explain this hair It is bright, it is not intended to limit the present invention.

Embodiment one

Fig. 3 illustrates a kind of flow diagram of scheduled transmission method provided in an embodiment of the present invention, such as Fig. 3 institutes Show, this method may include：

The resource scheduling request that S301, base station are sent according to terminal is determined as the Transmission Time Interval TTI of the terminal scheduling Quantity N and the occupied symbol quantities of each TTI, wherein TTI is short TTI and the length of TTI is less than occupied by a subframe Symbolic number, N be positive integer and N > 1.

S302, base station determine the ginseng of the terminal according to the occupied symbolic number of quantity N and each TTI of the TTI Examine signal pattern.

S303, base station are based on the reference signal pattern, receive the reference signal that terminal is sent.

Specifically, in above-mentioned steps S302, base station is in the occupied symbol of quantity N and each TTI according to the TTI The following two kinds mode can be used when determining the reference signal pattern of the terminal in number：

Mode one

Base station is according to the occupied symbolic number of quantity N and each TTI of TTI, from pre-defined reference signal pattern The reference signal pattern of terminal is determined in set, then base station generates scheduling and refer to according to the reference signal pattern of determining terminal Show information and be sent to terminal, the scheduling instruction information is used to indicate terminal and chooses the reference letter from reference pattern set Number pattern.

Mode two

Base station directly determines the reference signal figure of terminal according to the occupied symbolic number of quantity N and each TTI of TTI Sample.

As can be seen that when determining the reference signal pattern of terminal using aforesaid way two, base station is not needed to terminal Scheduling instruction information is sent, therefore, it is possible to further decrease the expense of indication signaling.

Optionally, when determining the reference signal pattern of terminal using aforesaid way one, base station can also be according to channel for base station The instruction terminals such as quality information, UE speed, modulation system choose certain reference from pre-defined reference signal pattern set Signal pattern is transmitted.

Reference signal pattern can be uplink reference signals DMRS patterns, naturally it is also possible to be other types of reference signal Pattern, the embodiment of the present invention is to the type of reference signal without any restriction.

Wherein, the used method of reference signal pattern set is pre-defined, reference can be made to method flow shown in Fig. 4.

S401, the subframe structure belonging to the short TTI symbol numbers occupied and short TTI, determine TTI numbers to be scheduled X is measured, X is positive integer and X > 1.

S402, Y is set according to reference signal setting rule for the occupied symbol quantities of each TTI in X TTI Kind refers to signal pattern, and the reference signal setting rule refers to letter for a symbol is at most arranged in each TTI to transmit Number, and a symbol is at least set in X TTI and carrys out transmission of reference signals, Y is positive integer and Y > 1.

S403, signal pattern is referred to according to the Y kinds of setting, predefines reference signal pattern set.

In predefined reference signal pattern set, for the occupied symbols of the last one TTI in X TTI, and When last symbol in the subframe structure belonging to short TTI, for the occupied symbols of the last one TTI in X TTI Other types of reference signal can be transmitted, for example, the last symbol of the last one TTI in X TTI can be reserved To possible SRS (Sounding Reference Signal, detection reference signal, then in predefined reference signal pattern, For the last symbol in the occupied symbols of the last one TTI in X TTI and the subframe structure belonging to short TTI Such case, then at this point, the last symbol of the last one TTI in X TTI be not used in transmission demodulation dedicated reference Signal DMRS.

In the specific implementation, the symbol numbers that short TTI is occupied can be 2,3,4,7 symbols, certainly, occupied by short TTI Symbol numbers can also be other symbol numbers for being included less than 1ms conventional subframes.For example, under LTE communication standard, it is short The symbol numbers that TTI is occupied can be 2,3,4,7 OFDM symbols or SC-FDMA symbols, certainly, the symbol that short TTI is occupied Number can also be other symbol numbers for being included less than 1ms conventional subframes.

When the symbol numbers that short TTI is occupied are 2 symbols or 3 symbols, the structure of the subframe structure belonging to short TTI is shown It is intended to, reference can be made to Fig. 5.

From figure 5 it can be seen that a subframe belonging to short TTI may include 6 continuous TTI, and shared by each TTI Symbol numbers are 2 symbols or 3 symbols.

When the symbol numbers that short TTI is occupied are 3 symbols or 4 symbols, the structure of the subframe structure belonging to short TTI Schematic diagram, reference can be made to Fig. 6.

From fig. 6 it can be seen that a subframe belonging to short TTI may include 4 continuous TTI, and shared by each TTI Symbol numbers are 3 symbols or 4 symbols.

When the symbol numbers that short TTI is occupied are 7 symbols, the structural schematic diagram of the subframe structure belonging to short TTI can join See Fig. 7.

It can be seen from figure 7 that a subframe belonging to short TTI may include 2 continuous TTI, and shared by each TTI Symbol numbers are 7 symbols.

Another scheduled transmission method that the embodiment of the present invention also provides, as shown in figure 8, this method may include：

S801, terminal receive the dispatch that base station is sent, and the transmission that base station is terminal scheduling is carried in the dispatch The occupied symbol quantity of time interval TTI quantity N and each TTI, wherein TTI is short TTI and the length of TTI is less than one A occupied symbolic number of subframe, N are positive integer and N > 1.

S802, terminal determine reference signal pattern according to the dispatch.

S803, terminal send reference signal according to the reference signal pattern to base station.

Optionally, scheduling instruction information can be also carried in the dispatch that base station is sent, scheduling instruction information is for referring to Show that terminal chooses reference signal pattern from pre-defined reference pattern set.

In above-mentioned steps S802, terminal, can be according to dispatch when determining reference signal pattern according to dispatch The occupied symbol quantity of TTI quantity N and each TTI of middle carrying directly determines reference signal pattern；It also can be according to scheduling The instruction information carried in signaling can choose reference signal pattern in reference pattern set.

Below based on the subframe structure belonging to above-mentioned short TTI shown in fig. 5, by taking reference signal is DMRS as an example, by several A specific embodiment carries out detailed explanation to above-mentioned method.

Implement two

The scene that 2 uplink TTI transmission are continuously dispatched for base station, then based on the subframe knot belonging to short TTI shown in fig. 5 Structure, it may be determined that as follows there are three kinds of different TTI：

1, the first TTI structure

In the first TTI structure, n-th of TTI occupies 3 symbols, and (n+1)th TTI occupies 2 symbols, be denoted as TTI (3,2).

2, second of TTI structure

In second of TTI structure, n-th of TTI occupies 2 symbols, and (n+1)th TTI occupies 2 symbols, be denoted as TTI (2,2).

3, the third TTI structure

In the third TTI structure, n-th of TTI occupies 2 symbols, and (n+1)th TTI occupies 3 symbols, be denoted as TTI (2,3).

For the first TTI structure in the present embodiment, that is, it is directed to TTI (3,2), since the present embodiment is connected for base station The scene of 2 uplink TTI transmission of continuous scheduling, therefore, according to scheduled in n-th of TTI and (n+1)th occupied symbol of TTI DMRS quantity be at most 2, at least 1 principle can then predefine 11 kinds of DMRS patterns, referring in Fig. 9 TTI (3, 2), predefined 11 kinds of DMRS patterns, it is as follows：

1st kind of DMRS pattern：DMRS is only transmitted on the 1st symbol in n-th of TTI, and is uploaded in remaining symbol Transmission of data.

2nd kind of DMRS pattern：DMRS is only transmitted on the 2nd symbol in n-th of TTI, and is uploaded in remaining symbol Transmission of data.

3rd kind of DMRS pattern：DMRS is only transmitted on the 3rd symbol in n-th of TTI, and is uploaded in remaining symbol Transmission of data.

4th kind of DMRS pattern：DMRS only is transmitted on the 1st symbol in (n+1)th TTI, and on remaining symbol Transmission data.

5th kind of DMRS pattern：DMRS only is configured on the 2nd symbol in (n+1)th TTI, and on remaining symbol Transmission data.

6th kind of DMRS pattern：Respectively on the 1st symbol in the 1st symbol and (n+1)th TTI in n-th of TTI DMRS is transmitted, and in remaining symbol transmitting data.

7th kind of DMRS pattern：Respectively on the 1st symbol in the 2nd symbol and (n+1)th TTI in n-th of TTI DMRS is transmitted, and in remaining symbol transmitting data.

8th kind of DMRS pattern：Respectively on the 1st symbol in the 3rd symbol and (n+1)th TTI in n-th of TTI DMRS is transmitted, and in remaining symbol transmitting data.

9th kind of DMRS pattern：Respectively on the 2nd symbol in the 1st symbol and (n+1)th TTI in n-th of TTI DMRS is transmitted, and in remaining symbol transmitting data.

10th kind of DMRS pattern：Respectively on the 2nd symbol in the 2nd symbol and (n+1)th TTI in n-th of TTI DMRS is transmitted, and in remaining symbol transmitting data.

11st kind of DMRS pattern：Respectively on the 2nd symbol in the 3rd symbol and (n+1)th TTI in n-th of TTI DMRS is transmitted, and in remaining symbol transmitting data.

For second of TTI structure in the present embodiment, that is, it is directed to TTI (2,2), since the present embodiment is connected for base station The scene of 2 uplink TTI transmission of continuous scheduling, therefore, according to scheduled in n-th of TTI and (n+1)th occupied symbol of TTI DMRS quantity be at most 2, at least 1 principle can then predefine 8 kinds of DMRS patterns, referring in Fig. 9 TTI (2, 2), predefined 8 kinds of DMRS patterns, it is as follows：

3rd kind of DMRS pattern：DMRS only is transmitted on the 1st symbol in (n+1)th TTI, and on remaining symbol Configuration data.

4th kind of DMRS pattern：DMRS only is configured on the 2nd symbol in (n+1)th TTI, and on remaining symbol Transmission data.

5th kind of DMRS pattern：Respectively on the 1st symbol in the 1st symbol and (n+1)th TTI in n-th of TTI DMRS is transmitted, and in remaining symbol transmitting data.

6th kind of DMRS pattern：Respectively on the 1st symbol in the 2nd symbol and (n+1)th TTI in n-th of TTI DMRS is transmitted, and in remaining symbol transmitting data.

7th kind of DMRS pattern：Respectively on the 2nd symbol in the 1st symbol and (n+1)th TTI in n-th of TTI DMRS is transmitted, and in remaining symbol transmitting data.

8th kind of DMRS pattern：Respectively on the 2nd symbol in the 2nd symbol and (n+1)th TTI in n-th of TTI DMRS is transmitted, and in remaining symbol transmitting data.

For the third TTI structure in the present embodiment, that is, it is directed to TTI (2,3), since the present embodiment is connected for base station The scene of 2 uplink TTI transmission of continuous scheduling, and since the last symbol of (n+1)th TTI in TTI (2,3) is also Fig. 5 Shown in the last symbol of subframe structure therefore adjusted according in n-th of TTI and (n+1)th occupied symbol of TTI The DMRS quantity of degree is at most that 2, at least 1 and the last symbol in (n+1)th TTI do not transmit DMRS as original Then, then 8 kinds of DMRS patterns can be predefined, referring to the TTI (2,3) in Fig. 9, predefined 8 kinds of DMRS patterns are as follows：

1st kind of DMRS pattern：DMRS only is transmitted on the 1st symbol in n-th of TTI, and will be in (n+1)th TTI The 3rd symbol keep for possible SRS, do not transmit DMRS, and in remaining symbol transmitting data.

2nd kind of DMRS pattern：DMRS only is transmitted on the 2nd symbol in n-th of TTI, and will be in (n+1)th TTI The 3rd symbol keep for possible SRS, do not transmit DMRS, and in remaining symbol transmitting data.

3rd kind of DMRS pattern：Only transmit DMRS on the 1st symbol in (n+1)th TTI, and by (n+1)th TTI In the 3rd symbol keep for possible SRS, do not transmit DMRS, and the configuration data on remaining symbol.

4th kind of DMRS pattern：Only transmit DMRS on the 2nd symbol in (n+1)th TTI, and by (n+1)th TTI In the 3rd symbol keep for possible SRS, do not transmit DMRS, and in remaining symbol transmitting data.

5th kind of DMRS pattern：Respectively on the 1st symbol in the 1st symbol and (n+1)th TTI in n-th of TTI DMRS is transmitted, and the 3rd symbol in (n+1)th TTI is kept for into possible SRS, does not transmit DMRS, and in remaining symbol Number transmitting data.

6th kind of DMRS pattern：Respectively on the 1st symbol in the 2nd symbol and (n+1)th TTI in n-th of TTI DMRS is transmitted, and the 3rd symbol in (n+1)th TTI is kept for into possible SRS, does not transmit DMRS, and in remaining symbol Number transmitting data.

7th kind of DMRS pattern：Respectively on the 2nd symbol in the 1st symbol and (n+1)th TTI in n-th of TTI DMRS is transmitted, and the 3rd symbol in (n+1)th TTI is kept for into possible SRS, does not transmit DMRS, and in remaining symbol Number transmitting data.

8th kind of DMRS pattern：Respectively on the 2nd symbol in the 2nd symbol and (n+1)th TTI in n-th of TTI DMRS is transmitted, and the 3rd symbol in (n+1)th TTI is kept for into possible SRS, does not transmit DMRS, and in remaining symbol Number transmitting data.

To sum up, the scene that the short TTI transmission of 2 uplinks is continuously dispatched for base station, due to being directed to the pattern collection of TTI (3,2) 11 kinds of DMRS patterns are predefined in conjunction, for 8 kinds of DMRS patterns are predefined in the pattern set of TTI (2,2), for TI structures 8 kinds of DMRS patterns are predefined in the pattern set of (2,3), therefore, in this embodiment, base station only needs in dispatch The instruction information of 4bit (bit) can instruction terminal choose DMRS patterns from DMRS pattern set, and without for each TTI distributes indication signaling, so as to reduce the expense of indication signaling.

Embodiment three

In order to be further reduced the expense of indication signaling, the scene of the short TTI transmission of 2 uplinks is continuously dispatched for base station, The number of the DMRS patterns in DMRS pattern set can be also further reduced.

Specifically, for the base station scene that continuously 2 uplink TTI of scheduling are transmitted, then it is based on belonging to short TTI shown in fig. 5 Subframe structure, it may be determined that it is as follows there are three kinds of different TTI structures：

1, the first TTI structure

2, second of TTI structure

3, the third TTI structure

For the first TTI structure in the present embodiment, that is, it is directed to TTI (3,2), since the present embodiment is connected for base station The scene of 2 uplink TTI transmission of continuous scheduling, therefore, according to scheduled in n-th of TTI and (n+1)th occupied symbol of TTI DMRS quantity be at most 2, at least 1 principle can then predefine 8 kinds of DMRS patterns, referring in Figure 10 TTI (3, 2), predefined 11 kinds of DMRS patterns, it is as follows：

4th kind of DMRS pattern：Respectively on the 1st symbol in the 1st symbol and (n+1)th TTI in n-th of TTI DMRS is transmitted, and in remaining symbol transmitting data.

5th kind of DMRS pattern：Respectively on the 1st symbol in the 2nd symbol and (n+1)th TTI in n-th of TTI DMRS is transmitted, and in remaining symbol transmitting data.

6th kind of DMRS pattern：Respectively on the 2nd symbol in the 1st symbol and (n+1)th TTI in n-th of TTI DMRS is transmitted, and in remaining symbol transmitting data.

7th kind of DMRS pattern：Respectively on the 2nd symbol in the 2nd symbol and (n+1)th TTI in n-th of TTI DMRS is transmitted, and in remaining symbol transmitting data.

8th kind of DMRS pattern：Respectively on the 2nd symbol in the 3rd symbol and (n+1)th TTI in n-th of TTI DMRS is transmitted, and in remaining symbol transmitting data.

For second of TTI structure in the present embodiment, that is, it is directed to TTI (2,2), since the present embodiment is connected for base station The scene of 2 uplink TTI transmission of continuous scheduling, therefore, according to scheduled in n-th of TTI and (n+1)th occupied symbol of TTI DMRS quantity be at most 2, at least 1 principle can then predefine 8 kinds of DMRS patterns, referring in Figure 10 TTI (2, 2), predefined 8 kinds of DMRS patterns are as follows：

For the third TTI structure in the present embodiment, that is, it is directed to TTI (2,3), since the present embodiment is connected for base station The scene of 2 uplink TTI transmission of continuous scheduling, and since the last symbol of (n+1)th TTI in TTI (2,3) is also Fig. 5 Shown in the last symbol of subframe structure therefore adjusted according in n-th of TTI and (n+1)th occupied symbol of TTI The DMRS quantity of degree is at most that 2, at least 1 and the last symbol in (n+1)th TTI do not transmit DMRS as original Then, then 8 kinds of DMRS patterns can be predefined, referring to the TTI (2,3) in Figure 10, predefined 8 kinds of DMRS patterns are as follows：

To sum up, the scene that the short TTI transmission of 2 uplinks is continuously dispatched for base station, due to being directed to the pattern collection of TTI (3,2) In conjunction predefine 8 kinds of DMRS patterns, in the pattern set of TTI (2,2) predefine 8 kinds of DMRS patterns, for TI structures (2, 3) 8 kinds of DMRS patterns are predefined in pattern set, therefore, in this embodiment, base station only needs 3bit in dispatch Instruction information can instruction terminal DMRS patterns are chosen from DMRS pattern set, and refer to without being transmitted for each TTI Show signaling, so as to be further reduced the expense of indication signaling.

Example IV

The scene that 3 uplink TTI transmission are continuously dispatched for base station, then based on the subframe knot belonging to short TTI shown in fig. 5 Structure, it may be determined that as follows there are two different TTI structures：

1, the first TTI structure

In the first TTI structure, n-th of TTI 3 symbol of occupancy, (n+1)th TTI 2 symbol of occupancy, the n-th+2 TTI occupies 2 symbols, is denoted as TTI (3,2,2).

2, second of TTI structure

In second of TTI structure, n-th of TTI 2 symbol of occupancy, (n+1)th TTI 2 symbol of occupancy, the n-th+2 TTI occupies 3 symbols, is denoted as TTI (2,2,3).

For the first TTI structure in the present embodiment, that is, it is directed to TTI (3,2,2), since the present embodiment is to be directed to base station The scene of 3 uplink TTI transmission of continuous scheduling, therefore, according to shared by n-th of TTI, (n+1)th TTI and the n-th+2 TTI DMRS quantity scheduled in symbol is at most 3, at least 1 principle, then can predefine 31 kinds of DMRS patterns, referring to TTI (3,2,2) in Figure 11, predefined 31 kinds of DMRS patterns are as follows：

5th kind of DMRS pattern：Respectively on the 2nd symbol in the 1st symbol and (n+1)th TTI in n-th of TTI DMRS is transmitted, and in remaining symbol transmitting data.

6th kind of DMRS pattern：Respectively on the 1st symbol in the 1st symbol and the n-th+2 TTI in n-th of TTI DMRS is transmitted, and in remaining symbol transmitting data.

7th kind of DMRS pattern：Respectively on the 2nd symbol in the 1st symbol and the n-th+2 TTI in n-th of TTI DMRS is transmitted, and in remaining symbol transmitting data.

8th kind of DMRS pattern：Respectively on the 1st symbol in the 2nd symbol and (n+1)th TTI in n-th of TTI DMRS is transmitted, and in remaining symbol transmitting data.

9th kind of DMRS pattern：Respectively on the 2nd symbol in the 2nd symbol and (n+1)th TTI in n-th of TTI DMRS is transmitted, and in remaining symbol transmitting data.

10th kind of DMRS pattern：Respectively on the 1st symbol in the 2nd symbol and the n-th+2 TTI in n-th of TTI DMRS is transmitted, and in remaining symbol transmitting data.

11st kind of DMRS pattern：Respectively on the 2nd symbol in the 2nd symbol and the n-th+2 TTI in n-th of TTI DMRS is transmitted, and in remaining symbol transmitting data.

12nd kind of DMRS pattern：Respectively on the 1st symbol in the 3rd symbol and (n+1)th TTI in n-th of TTI DMRS is transmitted, and in remaining symbol transmitting data.

13rd kind of DMRS pattern：Respectively on the 2nd symbol in the 3rd symbol and (n+1)th TTI in n-th of TTI DMRS is transmitted, and in remaining symbol transmitting data.

14th kind of DMRS pattern：Respectively on the 1st symbol in the 3rd symbol and the n-th+2 TTI in n-th of TTI DMRS is transmitted, and in remaining symbol transmitting data.

15th kind of DMRS pattern：Respectively on the 2nd symbol in the 3rd symbol and the n-th+2 TTI in n-th of TTI DMRS is transmitted, and in remaining symbol transmitting data.

16th kind of DMRS pattern：The 1st symbol in n-th of TTI, the 1st symbol in (n+1)th TTI, respectively DMRS is transmitted on the 2nd symbol in n+2 TTI, and in remaining symbol transmitting data.

17th kind of DMRS pattern：The 1st symbol in n-th of TTI, the 2nd symbol in (n+1)th TTI, respectively DMRS is transmitted on the 1st symbol in n+2 TTI, and in remaining symbol transmitting data.

18th kind of DMRS pattern：The 1st symbol in n-th of TTI, the 2nd symbol in (n+1)th TTI, respectively DMRS is transmitted on the 2nd symbol in n+2 TTI, and in remaining symbol transmitting data.

19th kind of DMRS pattern：The 1st symbol in n-th of TTI, the 1st symbol in (n+1)th TTI, respectively DMRS is transmitted on the 1st symbol in n+2 TTI, and in remaining symbol transmitting data.

20th kind of DMRS pattern：The 2nd symbol in n-th of TTI, the 1st symbol in (n+1)th TTI, respectively DMRS is transmitted on the 2nd symbol in n+2 TTI, and in remaining symbol transmitting data.

21st kind of DMRS pattern：The 2nd symbol in n-th of TTI, the 2nd symbol in (n+1)th TTI, respectively DMRS is transmitted on the 1st symbol in n+2 TTI, and in remaining symbol transmitting data.

22nd kind of DMRS pattern：The 2nd symbol in n-th of TTI, the 2nd symbol in (n+1)th TTI, respectively DMRS is transmitted on the 2nd symbol in n+2 TTI, and in remaining symbol transmitting data.

23rd kind of DMRS pattern：The 2nd symbol in n-th of TTI, the 1st symbol in (n+1)th TTI, respectively DMRS is transmitted on the 1st symbol in n+2 TTI, and in remaining symbol transmitting data.

24th kind of DMRS pattern：The 3rd symbol in n-th of TTI, the 1st symbol in (n+1)th TTI, respectively DMRS is transmitted on the 2nd symbol in n+2 TTI, and in remaining symbol transmitting data.

25th kind of DMRS pattern：The 3rd symbol in n-th of TTI, the 2nd symbol in (n+1)th TTI, respectively DMRS is transmitted on the 1st symbol in n+2 TTI, and in remaining symbol transmitting data.

26th kind of DMRS pattern：The 3rd symbol in n-th of TTI, the 2nd symbol in (n+1)th TTI, respectively DMRS is transmitted on the 2nd symbol in n+2 TTI, and in remaining symbol transmitting data.

27th kind of DMRS pattern：The 3rd symbol in n-th of TTI, the 1st symbol in (n+1)th TTI, respectively DMRS is transmitted on the 1st symbol in n+2 TTI, and in remaining symbol transmitting data.

28th kind of DMRS pattern：DMRS only is transmitted on the 1st symbol in (n+1)th TTI, and on remaining symbol Transmission data.

29th kind of DMRS pattern：DMRS only is transmitted on the 2nd symbol in (n+1)th TTI, and on remaining symbol Transmission data.

30th kind of DMRS pattern：DMRS only is transmitted on the 1st symbol in the n-th+2 TTI, and on remaining symbol Transmission data.

31st kind of DMRS pattern：DMRS only is transmitted on the 2nd symbol in the n-th+2 TTI, and on remaining symbol Transmission data.

For second of TTI structure in the present embodiment, that is, it is directed to TTI (2,2,3), since the present embodiment is to be directed to base station The scene of 3 uplink TTI transmission of continuous scheduling, and since the last symbol of the n-th+2 TTI in TTI (2,2,3) is also The last symbol of subframe structure shown in fig. 5, therefore, according in n-th of TTI, (n+1)th TTI and the n-th+2 TTI DMRS quantity scheduled in occupied symbol is at most 3, at least 1 and the last one symbol in the n-th+2 TTI It is principle number not transmit DMRS, then can predefine 26 kinds of DMRS patterns, referring to the TTI (2,2,3) in Figure 11, predefined 26 kinds DMRS patterns, it is as follows：

1st kind of DMRS pattern：DMRS only is transmitted on the 1st symbol in n-th of TTI, and will be in the n-th+2 TTI The 3rd symbol keep for possible SRS, do not transmit DMRS, and in remaining symbol transmitting data.

2nd kind of DMRS pattern：DMRS only is transmitted on the 2nd symbol in n-th of TTI, and will be in the n-th+2 TTI The 3rd symbol keep for possible SRS, do not transmit DMRS, and in remaining symbol transmitting data.

3rd kind of DMRS pattern：Only transmit DMRS on the 1st symbol in (n+1)th TTI, and by the n-th+2 TTI In the 3rd symbol keep for possible SRS, do not transmit DMRS, and in remaining symbol transmitting data.

4th kind of DMRS pattern：Only transmit DMRS on the 2nd symbol in (n+1)th TTI, and by the n-th+2 TTI In the 3rd symbol keep for possible SRS, do not transmit DMRS, and in remaining symbol transmitting data.

5th kind of DMRS pattern：Respectively on the 2nd symbol in the 1st symbol and (n+1)th TTI in n-th of TTI DMRS is transmitted, and the 3rd symbol in the n-th+2 TTI is kept for into possible SRS, does not transmit DMRS, and in remaining symbol Number transmitting data.

6th kind of DMRS pattern：Respectively on the 1st symbol in the 2nd symbol and (n+1)th TTI in n-th of TTI DMRS is transmitted, and the 3rd symbol in the n-th+2 TTI is kept for into possible SRS, does not transmit DMRS, and in remaining symbol Number transmitting data.

7th kind of DMRS pattern：Respectively on the 2nd symbol in the 2nd symbol and (n+1)th TTI in n-th of TTI DMRS is transmitted, and the 3rd symbol in the n-th+2 TTI is kept for into possible SRS, does not transmit DMRS, and in remaining symbol Number transmitting data.

8th kind of DMRS pattern：Respectively on the 1st symbol in the 1st symbol and (n+1)th TTI in n-th of TTI DMRS is transmitted, and the 3rd symbol in the n-th+2 TTI is kept for into possible SRS, does not transmit DMRS, and in remaining symbol Number transmitting data.

9th kind of DMRS pattern：Respectively on the 1st symbol in the 1st symbol and the n-th+2 TTI in n-th of TTI DMRS is transmitted, and the 3rd symbol in the n-th+2 TTI is kept for into possible SRS, does not transmit DMRS, and in remaining symbol Number transmitting data.

10th kind of DMRS pattern：Respectively on the 1st symbol in the 2nd symbol and the n-th+2 TTI in n-th of TTI DMRS is transmitted, and the 3rd symbol in the n-th+2 TTI is kept for into possible SRS, does not transmit DMRS, and in remaining symbol Number transmitting data.

11st kind of DMRS pattern：The 1st symbol in the 1st symbol and the n-th+2 TTI in (n+1)th TTI respectively Upper transmission DMRS, and the 3rd symbol in the n-th+2 TTI is kept for into possible SRS, DMRS is not transmitted, and at remaining Symbol transmitting data.

12nd kind of DMRS pattern：The 1st symbol in the 2nd symbol and the n-th+2 TTI in (n+1)th TTI respectively Upper transmission DMRS, and the 3rd symbol in the n-th+2 TTI is kept for into possible SRS, DMRS is not transmitted, and at remaining Symbol transmitting data.

13rd kind of DMRS pattern：Respectively on the 2nd symbol in the 1st symbol and the n-th+2 TTI in n-th of TTI DMRS is transmitted, and the 3rd symbol in the n-th+2 TTI is kept for into possible SRS, does not transmit DMRS, and in remaining symbol Number transmitting data.

14th kind of DMRS pattern：Respectively on the 2nd symbol in the 2nd symbol and the n-th+2 TTI in n-th of TTI DMRS is transmitted, and the 3rd symbol in the n-th+2 TTI is kept for into possible SRS, does not transmit DMRS, and in remaining symbol Number transmitting data.

15th kind of DMRS pattern：The 2nd symbol in the 1st symbol and the n-th+2 TTI in (n+1)th TTI respectively Upper transmission DMRS, and the 3rd symbol in the n-th+2 TTI is kept for into possible SRS, DMRS is not transmitted, and at remaining Symbol transmitting data.

16th kind of DMRS pattern：The 2nd symbol in the 2nd symbol and the n-th+2 TTI in (n+1)th TTI respectively Upper transmission DMRS, and the 3rd symbol in the n-th+2 TTI is kept for into possible SRS, DMRS is not transmitted, and at remaining Symbol transmitting data.

17th kind of DMRS pattern：The 1st symbol in n-th of TTI, the 2nd symbol in (n+1)th TTI, respectively DMRS is transmitted on the 1st symbol in n+2 TTI, and the 3rd symbol in the n-th+2 TTI is kept for into possible SRS, DMRS is not transmitted, and in remaining symbol transmitting data.

18th kind of DMRS pattern：The 2nd symbol in n-th of TTI, the 1st symbol in (n+1)th TTI, respectively DMRS is transmitted on the 1st symbol in n+2 TTI, and the 3rd symbol in the n-th+2 TTI is kept for into possible SRS, DMRS is not transmitted, and in remaining symbol transmitting data.

19th kind of DMRS pattern：The 2nd symbol in n-th of TTI, the 2nd symbol in (n+1)th TTI, respectively DMRS is transmitted on the 1st symbol in n+2 TTI, and the 3rd symbol in the n-th+2 TTI is kept for into possible SRS, DMRS is not transmitted, and in remaining symbol transmitting data.

20th kind of DMRS pattern：The 1st symbol in n-th of TTI, the 1st symbol in (n+1)th TTI, respectively DMRS is transmitted on the 1st symbol in n+2 TTI, and the 3rd symbol in the n-th+2 TTI is kept for into possible SRS, DMRS is not transmitted, and in remaining symbol transmitting data.

21st kind of DMRS pattern：The 1st symbol in n-th of TTI, the 1st symbol in (n+1)th TTI, respectively DMRS is transmitted on the 2nd symbol in n+2 TTI, and the 3rd symbol in the n-th+2 TTI is kept for into possible SRS, DMRS is not transmitted, and in remaining symbol transmitting data.

22nd kind of DMRS pattern：The 2nd symbol in n-th of TTI, the 1st symbol in (n+1)th TTI, respectively DMRS is transmitted on the 2nd symbol in n+2 TTI, and the 3rd symbol in the n-th+2 TTI is kept for into possible SRS, DMRS is not transmitted, and in remaining symbol transmitting data.

23rd kind of DMRS pattern：The 2nd symbol in n-th of TTI, the 2nd symbol in (n+1)th TTI, respectively DMRS is transmitted on the 2nd symbol in n+2 TTI, and the 3rd symbol in the n-th+2 TTI is kept for into possible SRS, DMRS is not transmitted, and in remaining symbol transmitting data.

24th kind of DMRS pattern：The 1st symbol in n-th of TTI, the 1st symbol in (n+1)th TTI, respectively DMRS is transmitted on the 1st symbol in n+2 TTI, and the 3rd symbol in the n-th+2 TTI is kept for into possible SRS, DMRS is not transmitted, and in remaining symbol transmitting data.

25th kind of DMRS pattern：Only transmit DMRS on the 1st symbol in the n-th+2 TTI, and by the n-th+2 TTI In the 3rd symbol keep for possible SRS, do not transmit DMRS, and in remaining symbol transmitting data.

26th kind of DMRS pattern：Only transmit DMRS on the 2nd symbol in the n-th+2 TTI, and by the n-th+2 TTI In the 3rd symbol keep for possible SRS, do not transmit DMRS, and in remaining symbol transmitting data.

To sum up, the scene that the short TTI transmission of 3 uplinks is continuously dispatched for base station, due to being directed to the pattern of (3,2,2) TTI 31 kinds of DMRS patterns are predefined in set, for 26 kinds of DMRS patterns are predefined in the pattern set of TTI (2,2,3), therefore, In the embodiment, base station only needed in dispatch 5bit instruction information can instruction terminal selected from DMRS pattern set DMRS patterns are taken, and without transmitting indication signaling for each TTI, so as to reduce the expense of indication signaling.

Embodiment five

In order to further decrease the expense of indication signaling, base station can not also send scheduling instruction information, terminal to terminal Based on pre-defined reference signal pattern, reference signal pattern can be directly determined.

The scene that the short TTI transmission of 2 uplinks is continuously dispatched below for base station, then based on belonging to short TTI shown in fig. 5 Subframe structure, it may be determined that as follows there are three kinds of different TTI structures：

1, the first TTI structure

2, second of TTI structure

3, the third TTI structure

For the first TTI structure in the present embodiment, that is, it is directed to TTI (3,2), using n-th of TTI and (n+1)th TTI DMRS quantity scheduled in occupied symbol is at most 2, at least 1 principle, only predefines a kind of DMRS patterns, ginseng See the TTI (3,2) in Figure 12, it is as follows for a kind of predefined DMRS patterns of TTI (3,2)：

The corresponding DMRS patterns of TTI (3,2)：DMRS only is transmitted on the 1st symbol in n-th of TTI, and at remaining Symbol transmitting data.

Therefore, when determined in the dispatch that terminal is sent according to base station need to continuously transmit two short TTI of uplink with And after corresponding structure is TTI (3,2), the corresponding DMRS patterns of predefined TTI (2,3) can be used directly and be transmitted, by In terminal according to the quantity of determining TTI and the structure of TTI, corresponding DMRS patterns can be used directly and be transmitted, therefore, It does not need to base station and transmits indication signaling for each TTI, so as to further reduce the expense of indication signaling.

For second of TTI structure in the present embodiment, that is, it is directed to TTI (2,2), using n-th of TTI and (n+1)th TTI DMRS quantity scheduled in occupied symbol is at most 2, at least 1 principle, only predefines a kind of DMRS patterns, ginseng See the TTI (2,2) in Figure 12, it is as follows for a kind of predefined DMRS patterns of TTI (2,2)：

The corresponding DMRS patterns of TTI (2,2)：DMRS only is transmitted on the 1st symbol in n-th of TTI, and at remaining Symbol transmitting data.

Therefore, when determined in the dispatch that terminal is sent according to base station need to continuously transmit two short TTI of uplink with And after corresponding structure is TTI (2,2), the corresponding DMRS patterns of predefined TTI (2,2) can be used directly and be transmitted, by In terminal according to the quantity of determining TTI and the structure of TTI, corresponding DMRS patterns can be used directly and be transmitted, therefore, It does not need to base station and transmits indication signaling for each TTI, so as to further reduce the expense of indication signaling.

For the third TTI structure in the present embodiment, that is, it is directed to TTI (2,3), only predefines a kind of DMRS patterns, ginseng See the TTI (2,3) in Figure 12, it is as follows for a kind of predefined DMRS patterns of TTI (2,3)：

The corresponding DMRS patterns of TTI (2,3)：DMRS only is transmitted on the 1st symbol in n-th of TTI, and at remaining Symbol transmitting data.

Therefore, when determined in the dispatch that terminal is sent according to base station need to continuously transmit two short TTI of uplink with And after corresponding structure is TTI (2,3), the corresponding DMRS patterns of predefined TTI (2,3) can be used directly and be transmitted, by In terminal according to the quantity of determining TTI and the structure of TTI, corresponding DMRS patterns can be used directly and be transmitted, therefore, It does not need to base station and transmits indication signaling for each TTI, so as to further reduce the expense of indication signaling.

Embodiment six

The scene that the short TTI transmission of 3 uplinks is continuously dispatched below for base station, then based on belonging to short TTI shown in fig. 5 Subframe structure, it may be determined that as follows there are two different TTI structures：

1, the first TTI structure

2, second of TTI structure

For the first TTI structure in the present embodiment, that is, be directed to TTI (3,2,2), according to n-th of TTI, (n+1)th DMRS quantity scheduled in TTI and the occupied symbols of the n-th+2 TTI is at most 3, and at least 1 is principle, only pre- A kind of DMRS patterns are defined, referring to the TTI (3,2,2) in Figure 13, for a kind of predefined DMRS patterns of TTI (3,2,2), such as Under：

The corresponding DMRS patterns of TTI (3,2,2)：The 1st symbol in n-th of TTI and the 2nd of (n+1)th symbol respectively DMRS is transmitted on number, and in remaining symbol transmitting data.

Therefore, when determined in the dispatch that terminal is sent according to base station need to continuously transmit three short TTI of uplink with And after corresponding structure is TTI (3,2,2), the corresponding DMRS patterns of predefined TTI (3,2,2) can be used directly and passed It is defeated, since terminal is according to the quantity of determining TTI and the structure of TTI, corresponding DMRS patterns can be used directly and be transmitted, Therefore, it does not need to base station and transmits indication signaling for each TTI, so as to further reduce opening for indication signaling Pin.

For second of TTI structure in the present embodiment, that is, it is directed to TTI (2,2,3), since the present embodiment is to be directed to base station The scene of 3 uplink TTI transmission of continuous scheduling, and since the last symbol of the n-th+2 TTI in TTI (2,2,3) is also The last symbol of subframe structure shown in fig. 5, therefore, according to n-th of TTI, (n+1)th TTI and the n-th+2 TTI institutes DMRS quantity scheduled in the symbol of occupancy is at most 3, at least 1 and the last symbol in the n-th+2 TTI It is principle not transmit DMRS, only predefines a kind of DMRS patterns, pre- for TTI (2,2,3) referring to the TTI (2,2,3) in Figure 13 A kind of DMRS patterns of definition, it is as follows：

The corresponding DMRS patterns of TTI (3,2,2)：The 1st symbol in n-th of TTI and the 1st of n-th+2 symbol respectively DMRS is transmitted on number, and the 3rd symbol in the n-th+2 TTI is kept for into possible SRS, does not transmit DMRS, and at remaining Symbol transmitting data.

According to the above as can be seen that base station is when dispatching multiple TTI in the embodiment of the present invention, for quantification TTI and the TTI structures of determination, can pre-define corresponding reference signal pattern set, at this point, base station only needs transmitting and scheduling to refer to Show information, do not need to transmit indication signaling for each TTI, terminal is first according to the TTI of quantification and determination TTI structures determine reference signal pattern set, are then based on scheduling instruction information, ginseng is chosen from reference signal pattern set Signal pattern is examined, and based on determining reference signal pattern, reference signal is sent to base station, therefore, it is possible to reduce indication signaling Expense.And the TTI structures of the TTI and determination for quantification, also a kind of reference signal pattern can be only predefined, this When, base station indicates information without transmitting and scheduling, transmits indication signaling without for each TTI, terminal is according to quantification TTI and determination TTI structures, directly determine reference signal pattern, and based on determining reference signal pattern, sent out to base station Reference signal is sent, therefore the expense of indication signaling can be reduced.It directly determines reference signal pattern, and is believed based on determining reference Number pattern sends reference signal, therefore, it is possible to further reduce the expense of indication signaling to base station.

Based on the same technical idea, the embodiment of the present invention also provides a kind of base station, as shown in figure 14, base station Ke Bao It includes：

First determining module 1401, the resource scheduling request for being sent according to terminal, is determined as the terminal scheduling The occupied symbol quantity of Transmission Time Interval TTI quantity N and each TTI, the TTI are the length of short TTI and the TTI Less than the one occupied symbolic number of subframe, N are positive integer and N > 1；

First receiving module 1402 receives the reference signal that the terminal is sent for being based on the reference signal pattern.

Preferably, the first determining module 1401, is specifically used for：

The embodiment of the present invention also provides a kind of terminal, and as shown in figure 15, which includes：

Second receiving module 1501, the dispatch for receiving base station transmission carry the base in the dispatch The occupied symbol quantity of Transmission Time Interval TTI quantity N and each TTI stood as the terminal scheduling, the TTI are short The length of TTI and the TTI are less than an occupied symbolic number of subframe, and N is positive integer and N > 1；

Second determining module 1502, for according to the dispatch, determining reference signal pattern；

Sending module 1503, for according to the reference signal pattern, reference signal to be sent to the base station.

Preferably, the second determining module 1502, is specifically used for：

Various aspects are described herein in connection with terminal and/or base station.Terminal refers to and provides a user voice and/or data The equipment (device) of connectivity, including wireless terminal or catv terminal.Wireless terminal can have wireless connecting function Portable equipment or other processing equipments for being connected to radio modem, through wireless access network and one or more cores The mobile terminal that net is communicated.For example, wireless terminal can be mobile phone (or being " honeycomb " phone) and have movement The computer of terminal.For another example, wireless terminal can also be portable, pocket, hand-held, built-in computer or it is vehicle-mounted Mobile device.For another example, wireless terminal can be movement station (mobile station), access point (access point) or use A part for family equipment (user equipment, abbreviation UE).

The applicable communication standard of the embodiment of the present invention includes but not limited to：Global system for mobile communications (Global System Of Mobile communication, GSM), CDMA (Code Division Multiple Access, CDMA) IS- 95, CDMA (Code Division Multiple Access, CDMA) 2000, TD SDMA (Time Division-Synchronous Code Division Multiple Access, TD-SCDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA), time division duplex-long term evolution (Time Division Duplexing-Long Term Evolution, TDD LTE), frequency division duplex-long term evolution (Frequency Division Duplexing-Long Term Evolution, FDD LTE), long term evolution-enhancing (Long Term Evolution-Advanced, LTE-advanced), personal handyphone system (Personal Handy-phone System, PHS), Wireless Fidelity (Wireless Fidelity, WiFi), worldwide interoperability for microwave as defined in 802.11 serial protocols Access (Worldwide Interoperability for Microwave Access, WiMAX), and the following evolution are each Kind wireless communication system.

To sum up, scheduled transmission method provided in an embodiment of the present invention and base station, including：The resource that base station is sent according to terminal Scheduling request is determined as the occupied symbol quantity of Transmission Time Interval TTI quantity N and each TTI of the terminal scheduling, The TTI is short TTI and the length of the TTI is less than an occupied symbolic number of subframe, and N is positive integer and N > 1；It is described Base station determines the reference signal pattern of the terminal according to the occupied symbolic number of quantity N and each TTI of the TTI；Institute It states base station and is based on the reference signal pattern, receive the reference signal that the terminal is sent.As can be seen that base station is according to TTI's Quantity N and the occupied symbolic numbers of each TTI can directly determine the reference signal pattern of terminal, and based on described with reference to letter Number pattern receives the reference signal that the terminal is sent, and without distributing indication signaling for each TTI, so as to Reduce the expense of indication signaling.

Provided in an embodiment of the present invention kind of scheduled transmission method and terminal, including：Terminal receives the scheduling letter that base station is sent It enables, Transmission Time Interval the TTI quantity N and each TTI that the base station is the terminal scheduling is carried in the dispatch Occupied symbol quantity, the TTI is short TTI and the length of the TTI is less than an occupied symbolic number of subframe, and N is Positive integer and N > 1；The terminal determines reference signal pattern according to the dispatch；The terminal is according to described with reference to letter Number pattern sends reference signal to the base station.As can be seen that terminal according to dispatch, can directly determine reference signal figure Sample, and according to the reference signal pattern, reference signal is sent to the base station, therefore, base station does not have to distribute for each TTI Indication signaling, so as to reduce the expense of indication signaling.

It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method or computer program product. Therefore, complete hardware embodiment, complete software embodiment or embodiment combining software and hardware aspects can be used in the present invention Form.It is deposited moreover, the present invention can be used to can be used in the computer that one or more wherein includes computer usable program code The shape for the computer program product implemented on storage media (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) Formula.

The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that can be realized by computer program instructions every first-class in flowchart and/or the block diagram The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided Instruct the processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine so that the instruction executed by computer or the processor of other programmable data processing devices is generated for real The device for the function of being specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.

These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works so that instruction generation stored in the computer readable memory includes referring to Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or The function of being specified in multiple boxes.

These computer program instructions also can be loaded onto a computer or other programmable data processing device so that count Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, in computer or The instruction executed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one The step of function of being specified in a box or multiple boxes.

Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as It selects embodiment and falls into all change and modification of the scope of the invention.

Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies Within, then the present invention is also intended to include these modifications and variations.

Claims

1. a kind of scheduled transmission method, which is characterized in that including：

The resource scheduling request that base station is sent according to terminal, be determined as the Transmission Time Interval TTI quantity N of the terminal scheduling with And the occupied symbol quantities of each TTI, the TTI is short TTI and the length of the TTI is less than an occupied symbol of subframe Number, N are positive integer and N > 1；

The base station determines the reference letter of the terminal according to the occupied symbolic number of quantity N and each TTI of the TTI Number pattern；

2. the method as described in claim 1, which is characterized in that the base station is according to the quantity N and each TTI of the TTI Occupied symbolic number determines the reference signal pattern of the terminal, including：

The base station is according to the occupied symbolic number of quantity N and each TTI of the TTI, from pre-defined reference signal The reference signal pattern of the terminal is determined in pattern set；

The base station generates scheduling instruction information and is sent to the terminal, the scheduling refers to according to the reference signal pattern Show that information is used to indicate the terminal and chooses reference signal pattern from the reference pattern set.

3. method as claimed in claim 2, which is characterized in that pre-define the reference signal pattern collection in the following manner It closes：

According to the subframe structure belonging to the short TTI symbol numbers occupied and short TTI, determine that the quantity X, X of TTI to be scheduled is Positive integer and X > 1；

For the occupied symbol quantities of each TTI in X TTI, according to reference signal setting rule, setting Y kinds are with reference to letter Number pattern, the reference signal setting rule carry out transmission of reference signals for a symbol is at most arranged in each TTI, and in institute It states and a symbol is at least set in X TTI carrys out transmission of reference signals, Y is positive integer and Y > 1；

4. method as claimed in claim 3, which is characterized in that the reference signal sets rule and further includes：

When last in the subframe structure that the occupied symbols of the last one TTI in the X TTI are belonging to the short TTI When one symbol, the occupied last symbols of the last one TTI are not used in transmission demodulation DRS (Dedicated Reference Signal) DMRS.

5. a kind of scheduled transmission method, which is characterized in that including：

Terminal receives the dispatch that base station is sent, and the transmission that the base station is the terminal scheduling is carried in the dispatch The occupied symbol quantity of time interval TTI quantity N and each TTI, the TTI is short TTI and the length of the TTI is less than One occupied symbolic number of subframe, N are positive integer and N > 1；

The terminal determines reference signal pattern according to the dispatch；

6. method as claimed in claim 5, which is characterized in that the terminal determines reference signal according to the dispatch Pattern, including：

The terminal determines the reference letter of the terminal according to the TTI quantity N and the occupied symbol quantities of each TTI Number pattern；Or,

The dispatch further includes scheduling instruction information, and scheduling instruction information is used to indicate the terminal from pre-defining Reference pattern set in choose reference signal pattern；

7. a kind of base station, which is characterized in that including：

First determining module, the resource scheduling request for being sent according to terminal, is determined as the transmission time of the terminal scheduling It is spaced TTI quantity N and the occupied symbol quantities of each TTI, the TTI is short TTI and the length of the TTI is less than one The occupied symbolic number of subframe, N are positive integer and N > 1；

It is additionally operable to the occupied symbolic number of quantity N and each TTI according to the TTI, determines the reference signal of the terminal Pattern；

8. base station as claimed in claim 7, which is characterized in that first determining module is specifically used for：

9. base station as claimed in claim 8, which is characterized in that first determining module is specifically used for：

10. base station as claimed in claim 9, which is characterized in that first determining module is specifically used for：

The occupied symbols of the last one TTI in the X TTI are last in the subframe structure belonging to the short TTI When one symbol, the occupied last symbols of the last one TTI are not used in transmission demodulation DRS (Dedicated Reference Signal) DMRS.

11. a kind of terminal, which is characterized in that including：

Second receiving module, the dispatch for receiving base station transmission, it is described to carry the base station in the dispatch The occupied symbol quantity of Transmission Time Interval TTI quantity N and each TTI of terminal scheduling, the TTI are short TTI and institute The length for stating TTI is less than an occupied symbolic number of subframe, and N is positive integer and N > 1；

12. terminal as claimed in claim 11, which is characterized in that second determining module is specifically used for：

According to the TTI quantity N and the occupied symbol quantities of each TTI, the reference signal pattern of the terminal is determined； Or,