CN107872879B

CN107872879B - Data transmission indication and processing method and device

Info

Publication number: CN107872879B
Application number: CN201610848319.9A
Authority: CN
Inventors: 林祥利; 潘学明; 高雪娟
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2016-09-23
Filing date: 2016-09-23
Publication date: 2020-03-24
Anticipated expiration: 2036-09-23
Also published as: WO2018054115A1; CN107872879A

Abstract

The invention discloses a method and a device for indicating and processing data transmission, which comprise the following steps: in uplink, sending uplink scheduling information to a terminal at a base station side for scheduling a physical uplink shared channel for uplink transmission by using a first transmission time interval length; and after the uplink scheduling information is sent, sending an uplink notification signaling to the terminal to instruct the terminal to execute punching on the physical uplink shared channel which uses the first transmission time interval length for uplink transmission according to the uplink notification signaling. And when the downlink is carried out, the base station side carries out the punching and sends a downlink notification signaling to the terminal to indicate the terminal to determine the symbol which is subjected to the punching on the physical downlink shared channel which carries out the downlink transmission by using the first transmission time interval length according to the downlink notification signaling. By adopting the invention, the problem of conflict that data with different transmission time intervals are transmitted simultaneously in the same subframe and the same carrier wave is solved, and the receiving performance of a receiving end can be improved.

Description

Data transmission indication and processing method and device

Technical Field

The present invention relates to the field of wireless communication technologies, and in particular, to a method and an apparatus for indicating and processing data transmission.

Background

After a short TTI (Transmission time interval) is introduced into an LTE (Long Term Evolution) system, a problem may occur that short TTI data and 1ms TTI data are transmitted simultaneously on the same carrier in the same subframe.

Fig. 1 is a schematic diagram of a conventional time-delay terminal 1 and a low-delay terminal 2 simultaneously scheduling in the same subframe and the same carrier, for example, in fig. 1, a base station transmits UL grant _1 (Uplink scheduling information) in a subframe n to schedule a terminal 1 to perform PUSCH (Physical Uplink Shared Channel) transmission in a subframe n +4, at this time, there is a requirement that the low-delay terminal 2 has Uplink transmission in the subframe n + k, or the terminal 1 has a requirement that Uplink short TTI transmission is performed in the subframe n + k, and then in the subframe n +3, the base station transmits UL grant _2 to schedule the low-delay terminal 2 or the terminal 1 to transmit a short PUSCH (short PUSCH) in the subframe n + k. If there are no additional resources available for terminal 2 to schedule, the transmission data of terminal 1 and the short TTI data collide.

That is, the prior art has a disadvantage that when the short TTI data and the 1ms TTI data are transmitted simultaneously on the same carrier in the same subframe, the short TTI data and the 1ms TTI data collide with each other, however, there is no solution to avoid this problem.

Disclosure of Invention

The invention provides a data transmission indicating and processing method and device, which are used for solving the problem that TTI data with different lengths can generate conflict when the TTI data with different lengths are transmitted simultaneously in the same subframe and the same carrier.

The embodiment of the invention provides an uplink data transmission indicating method, which comprises the following steps:

sending a UL grant _1 to a terminal at a base station side for scheduling a PUSCH (physical uplink shared channel) which uses a first TTI length for uplink transmission;

and after the UL grant _1 is sent, sending an uplink notification signaling to the terminal to instruct the terminal to execute a puncuture on the PUSCH which uses the first TTI length for uplink transmission according to the uplink notification signaling.

In an implementation, the method further comprises the following steps:

if the base station side determines that a PUSCH transmitted by using the second TTI length exists in the time domain position where the PUSCH transmitted by using the first TTI length is located, all or part of frequency domain resources of the PUSCH transmitted by using the second TTI length are overlapped with the PUSCH transmitted by using the first TTI length, and the second TTI length is smaller than the first TTI length, after the UL grant _1 is sent, an uplink notification signaling is sent to the terminal to indicate the terminal to execute the puncuture on the PUSCH which is subjected to uplink transmission by using the first TTI length according to the uplink notification signaling.

In implementation, if the base station side is to send a UL grant _2 for scheduling a PUSCH for uplink transmission using a second TTI length, the base station side determines that a PUSCH transmitted using the second TTI length exists in a time domain position where the PUSCH transmitted using the first TTI length is located;

and/or if other base stations transmit the PUSCH with the second TTI length, the base station side determines that the PUSCH transmitted with the second TTI length exists in the time domain position of the PUSCH transmitted with the first TTI length.

In an implementation, the UL grant _2 is transmitted from the base station side to the terminal or other terminals.

In implementation, the PUSCH transmitted using the first TTI length is the terminal;

the PUSCH transmitted using the second TTI length is the terminal or other terminals.

In implementation, the uplink notification signaling sent to the terminal or other terminals is carried in a downlink control channel.

In implementation, the uplink notification signaling is sent in a legacy control region or in a control region of a PUSCH for scheduling transmission of the second TTI length.

In an implementation, the legacy control region is a subframe where the PUSCH transmitted using the first TTI length is located or a legacy control region before the subframe.

In an implementation, the executing the schema includes: and setting the mapping data on the corresponding time domain and frequency domain resources as 0.

In an implementation, the uplink notification signaling is further used to notify a frequency domain resource executing the punture.

The embodiment of the invention provides an uplink data transmission processing method, which comprises the following steps:

receiving a UL grant _1 sent by a base station side to a terminal, and determining a PUSCH (physical uplink shared channel) scheduled by the UL grant _1 and using a first TTI (transmission time interval) length for uplink transmission;

after receiving the UL grant _1, detecting an uplink notification signaling, wherein the uplink notification signaling is used for instructing a terminal to execute a punture on the PUSCH which performs uplink transmission by using the first TTI length according to the uplink notification signaling;

and after the uplink notification signaling is detected, executing the punture on the PUSCH which uses the first TTI length for uplink transmission according to the uplink notification signaling.

In implementation, the uplink notification signaling is carried in a downlink control channel.

The embodiment of the invention provides a downlink data transmission indicating method, which comprises the following steps:

transmitting DL grant _1 to a terminal at a base station side for scheduling a PDSCH which uses a first TTI length for downlink transmission;

and executing the drift and sending a downlink notification signaling to the terminal to indicate the terminal to determine the symbol of the drift on the PDSCH which performs downlink transmission by using the first TTI length according to the downlink notification signaling.

In an implementation, the method further comprises the following steps:

if the base station side determines that a PDSCH transmitted by using the second TTI length exists in the time domain position of the PDSCH transmitted by using the first TTI length, all or part of frequency domain resources of the PDSCH transmitted by using the second TTI length are overlapped with the PDSCH transmitted by using the first TTI length, and the second TTI length is smaller than the first TTI length, the base station side executes the puncuture and sends a downlink notification signaling to the terminal to indicate the terminal to determine that the symbols of the puncuture are executed on the PDSCH which is subjected to downlink transmission by using the first TTI length according to the downlink notification signaling.

In implementation, if the base station side is to send a DL grant _2 for scheduling a PDSCH downlink transmitted using a second TTI length, the base station side determines that a PDSCH transmitted using the second TTI length exists in a time domain location where the PDSCH transmitted using the first TTI length is located;

and/or if other base stations transmit the PDSCH by using the second TTI length, the base station side determines that one PDSCH transmitted by using the second TTI length exists in the time domain position of the PDSCH transmitted by using the first TTI length.

In an implementation, the DL grant _2 is transmitted from the base station side to the terminal or other terminals.

In an implementation, the PDSCH transmitted using the first TTI length is the terminal;

the PDSCH transmitted using the second TTI length is the terminal or other terminals.

In implementation, the downlink notification signaling sent by the base station to the terminal or other terminals is carried in a downlink control channel.

In implementation, the downlink notification signaling is sent in a legacy control region or in a control region of the PDSCH for scheduling the transmission of the second TTI length.

In an implementation, the legacy control region is a subframe in which the PDSCH transmitted with the first TTI length is located or a legacy control region before the subframe.

In an implementation, the symbol with the performed future is a symbol with mapping data on corresponding time domain and frequency domain resources set to 0.

In an implementation, the downlink notification signaling is further used to notify the frequency domain resource of the symbol for which the performance is determined.

The embodiment of the invention provides a downlink data transmission processing method, which comprises the following steps:

receiving DL grant _1 sent by a base station side to a terminal;

receiving the PDSCH which is scheduled by the DL grant _1 and carries out downlink transmission by using a first TTI length;

detecting a downlink notification signaling, wherein the downlink notification signaling is used for indicating a terminal to determine a symbol with a serving on the PDSCH which performs downlink transmission by using the first TTI length according to the downlink notification signaling;

and after the downlink notification signaling is detected, determining that the symbols of the serving are executed on the PDSCH which performs downlink transmission by using the first TTI length according to the downlink notification signaling.

In implementation, the downlink notification signaling is carried in a downlink control channel.

The embodiment of the invention provides an uplink data transmission indicating device, which comprises:

an uplink transmission module, configured to send a UL grant _1 to a terminal at a base station side to schedule a PUSCH for performing uplink transmission using a first TTI length;

and the uplink notification module is used for sending an uplink notification signaling to the terminal after sending the UL grant _1 so as to instruct the terminal to execute a punture on the PUSCH for performing uplink transmission by using the first TTI length according to the uplink notification signaling.

In an implementation, the uplink notification module is further configured to send, after sending the UL grant _1, an uplink notification signaling to the terminal to instruct the terminal to execute a punture on the PUSCH for performing uplink transmission using the first TTI length according to the uplink notification signaling, if the base station determines that a PUSCH transmitted using the second TTI length exists in the time domain location where the PUSCH transmitted using the first TTI length is located, and all or part of frequency domain resources of the PUSCH transmitted using the second TTI length overlap with the PUSCH transmitted using the first TTI length, and the second TTI length is smaller than the first TTI length.

In implementation, the uplink notification module is further configured to determine that a PUSCH transmitted with a second TTI length exists in a time domain location where the PUSCH transmitted with the first TTI length is located, if the base station side is to transmit UL grant _2 to schedule a PUSCH transmitted with the second TTI length for uplink transmission; and/or if other base stations transmit the PUSCH by using the second TTI length, determining that the PUSCH transmitted by using the second TTI length exists in the time domain position of the PUSCH transmitted by using the first TTI length.

In implementation, the uplink notification module is further configured to carry the uplink notification signaling sent to the terminal or another terminal in a downlink control channel.

In an implementation, the uplink notification module is further configured to send the uplink notification signaling in a legacy control region or in a control region of a PUSCH for scheduling transmission of the second TTI length.

The embodiment of the invention provides an uplink data transmission processing device, which comprises:

an uplink receiving module, configured to receive a UL grant _1 sent by a base station to a terminal, and determine a PUSCH scheduled by the UL grant _1 and using a first TTI length for uplink transmission;

an uplink detection module, configured to detect an uplink notification signaling after receiving the UL grant _1, where the uplink notification signaling is used to instruct the terminal to execute a puncute on the PUSCH for performing uplink transmission according to the uplink notification signaling, where the PUSCH uses the first TTI length;

and the uplink punching module is used for executing the puncuture on the PUSCH which uses the first TTI length for uplink transmission according to the uplink notification signaling after the uplink notification signaling is detected.

The embodiment of the invention provides a downlink data transmission indicating device, which comprises:

a downlink transmission module, configured to transmit a DL grant _1 to a terminal at a base station side for scheduling a PDSCH that uses a first TTI length for downlink transmission;

and the downlink notification module is used for executing the downlink and sending a downlink notification signaling to the terminal to indicate the terminal to determine the symbol on which the downlink is executed on the PDSCH which uses the first TTI length for downlink transmission according to the downlink notification signaling.

In an implementation, the downlink notification module is further configured to execute the puncuture and send a downlink notification signaling to the terminal to indicate the terminal to determine, according to the downlink notification signaling, that a symbol of the puncuture has been executed on the PDSCH subjected to downlink transmission using the first TTI length, if the base station side determines that the PDSCH transmitted using the second TTI length exists in the time domain location where the PDSCH transmitted using the first TTI length is located, and all or part of frequency domain resources of the PDSCH transmitted using the second TTI length overlap with the PDSCH transmitted using the first TTI length, and the second TTI length is smaller than the first TTI length.

In implementation, the downlink notification module is further configured to determine that a PDSCH transmitted with a second TTI length exists in a time domain location where the PDSCH transmitted with the first TTI length is located, if the base station side is to transmit a DL grant _2 for scheduling a PDSCH transmitted in downlink with the second TTI length; and/or if other base stations transmit the PDSCH by using the second TTI length, determining that the PDSCH transmitted by using the second TTI length exists in the time domain position where the PDSCH transmitted by using the first TTI length is located.

In implementation, the downlink notification module is further configured to carry the downlink notification signaling sent to the terminal or another terminal in a downlink control channel.

In an implementation, the downlink notification module is further configured to send the downlink notification signaling in a legacy control region or in a control region of the PDSCH for scheduling transmission of the second TTI length.

The embodiment of the invention provides a downlink data transmission processing device, which comprises:

a downlink receiving module, configured to receive a DL grant _1 sent by a base station to a terminal;

the downlink receiving module is further configured to receive the PDSCH scheduled by the DL grant _1 and performing downlink transmission using the first TTI length;

a downlink detection module, configured to detect a downlink notification signaling, where the downlink notification signaling is used to instruct a terminal to determine, according to the downlink notification signaling, a symbol on which a grant has been executed on the PDSCH that performs downlink transmission using the first TTI length;

and a downlink determining module, configured to determine, according to the downlink notification signaling, a symbol on which a punture has been performed on the PDSCH that performs downlink transmission using the first TTI length after detecting the downlink notification signaling.

The invention has the following beneficial effects:

in the technical solution provided in the embodiment of the present invention, the base station side may send a notification signaling to the terminal to instruct the terminal to execute a puncuture on a PUSCH or a downlink PDSCH that performs uplink transmission using a first TTI length of a certain length according to the notification signaling. The base station can indicate the terminal to carry out the calculation of the TTI data and indicate the position of the calculation resource, so that the terminal can carry out the calculation according to the calculation, and the problem of the conflict that the TTI data with different lengths are simultaneously transmitted in the same sub-frame and the same carrier wave is solved.

Furthermore, the influence of collision on data demodulation is reduced, so that the receiving performance of a receiving end can be improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic diagram of a conventional delay terminal 1 and a low delay terminal 2 in the background art that are simultaneously scheduled in the same subframe and the same carrier;

fig. 2 is a schematic flow chart illustrating an implementation of a method for indicating uplink data transmission at a base station side according to an embodiment of the present invention;

fig. 3 is a schematic flow chart illustrating an implementation of a method for processing uplink data transmission on a terminal side according to an embodiment of the present invention;

fig. 4 is a schematic flow chart illustrating an implementation of a downlink data transmission indication method on a base station side according to an embodiment of the present invention;

fig. 5 is a schematic flow chart illustrating an implementation of a method for processing downlink data transmission on a terminal side according to an embodiment of the present invention;

fig. 6 is a schematic diagram of a PUSCH of a base station indication terminal 1 according to embodiment 1 of the present invention as a push configuration;

fig. 7 is a schematic diagram of a PUSCH of a base station indication terminal 1 according to embodiment 2 of the present invention as a push configuration;

fig. 8 is a schematic diagram of a PUSCH of a base station indication terminal 1 according to embodiment 3 of the present invention as a push configuration;

fig. 9 is a schematic diagram of a PUSCH of a base station indication terminal 1 according to embodiment 4 of the present invention as a push configuration;

fig. 10 is a schematic diagram of indicating the punch of the PDSCH by the base station according to embodiment 5 of the present invention;

fig. 11 is a schematic diagram of indicating the downlink PDSCH of the base station according to embodiment 6 of the present invention;

fig. 12 is a schematic structural diagram of an uplink data transmission indicating device on the base station side according to an embodiment of the present invention;

fig. 13 is a schematic structural diagram of a terminal-side upstream data transmission processing apparatus according to an embodiment of the present invention;

fig. 14 is a schematic structural diagram of a downlink data transmission indicating apparatus on a base station side according to an embodiment of the present invention;

fig. 15 is a schematic structural diagram of a terminal-side downlink data transmission processing apparatus according to an embodiment of the present invention;

fig. 16 is a schematic structural diagram of a first base station in an embodiment of the present invention;

fig. 17 is a schematic structural diagram of a first terminal according to an embodiment of the present invention;

fig. 18 is a schematic structural diagram of a second base station in the embodiment of the present invention;

fig. 19 is a schematic structural diagram of a second terminal according to an embodiment of the present invention.

Detailed Description

With the development and change of the mobile communication service demand, a plurality of organizations such as ITU (International telecommunications union) define higher user plane delay performance requirements for future mobile communication systems. One of the main methods to reduce user time-delay performance is to reduce the transmission time interval length. But the inventor notices in the process of invention that:

after the short TTI is introduced, the problem that the short TTI data and the 1ms data terminal are transmitted simultaneously on the same carrier in the same subframe occurs, and one of the solutions is to puncture the 1ms TTI data at the conflicting resource location without transmitting the already prepared data, which is called a punch method. However, in the existing LTE system, the base station does not specifically instruct the terminal 1 to perform the notification signaling and processing procedure of the puncuture. When the terminal 1 does not perform the puncuture, the 1ms TTI data and the short TTI (short TTI) data collide with each other, which affects the transmission performance of both the 1ms TTI data and the short TTI data.

That is, there is no specific scheme for the base station to instruct the terminal to perform the forwarding of the 1ms TTI data and to instruct the location of the forwarding resource. Based on this, the embodiment of the present invention provides a solution for solving the conflict between the short TTI data and the 1ms TTI data. The following describes embodiments of the present invention with reference to the drawings.

In the description, the embodiments from the base station side and the terminal side will be described, and the embodiments of the uplink and the downlink will be described. Examples of the cooperation of the two in the upstream and downstream implementations will then also be given to better understand the implementation of the scheme given in the embodiments of the present invention. However, such an explanation does not mean that both must be implemented in cooperation or separately, and actually, when the terminal and the base station are implemented separately, it is possible to solve the problems on the terminal side and the base station side, respectively, and when both are used in combination, a better technical effect is obtained.

It should be noted that, since the behaviors of the base station side and the terminal side are generally corresponding, and there are corresponding parts in the uplink and downlink implementations in the present application, the base station side and the uplink side will be mainly described for the sake of simplicity, but this does not mean that there is no corresponding implementation in the other side and the downlink that are not described, and a person skilled in the art should be able to understand the corresponding implementation in the one side and the downlink based on common knowledge.

The following describes embodiments of the present invention with reference to the drawings.

Fig. 2 is a schematic flow chart of an implementation of a method for indicating uplink data transmission on a base station side, as shown in the figure, the method may include:

step 201, sending a UL grant _1 to a terminal at a base station side for scheduling a PUSCH for uplink transmission using a first TTI length;

step 202, after sending the UL grant _1, sending an uplink notification signaling to the terminal to instruct the terminal to execute a serving on the PUSCH for performing uplink transmission using the first TTI length according to the uplink notification signaling.

Specifically, the base station sends a UL grant _1 to schedule a PUSCH transmitted with the first TTI length, and sends a notification signaling P (for better understanding of the embodiment, convenience of description, and no ambiguity, the uplink notification signaling is also referred to as notification signaling P in this application), where the notification signaling is used for the terminal to determine which part of symbols in the PUSCH transmitted with the first TTI length to perform the forwarding.

In a specific implementation, a case may be that, no matter whether or not the puncing is needed, the base station sends the notification signaling P, if the punishing is not needed, the base station indicates that the content does not need to be expressed, and if the punishing is needed, the content is indicated as a punishing resource, at this time, the notification signaling may be unicast or multicast, and then the behavior of UL grant2 or the behavior of the base station determining whether to overlap may be further selected;

another situation may be that the base station sends the notification signaling P only when it needs to perform forwarding, where the notification signaling is unicast only, and the behavior of UL grant2 or the behavior of the base station determining whether to overlap is the processing performed first when sending the notification signaling.

As described above, the implementation may further include:

Specifically, the signaling P for sending notification may be: a base station sends a UL grant _2 to schedule a PUSCH transmitted by using a second TTI length, wherein the time domain position of the PUSCH transmitted by using the second TTI length is contained in the time domain position of the PUSCH transmitted by using the first TTI length, all or part of frequency domain resources of the PUSCH transmitted by using the second TTI length are overlapped with the PUSCH transmitted by using the first TTI length, and the second TTI length is smaller than the first TTI length;

or the base station determines that a PUSCH transmitted by using the second TTI length exists in the time domain position of the PUSCH transmitted by using the first TTI length, and all or part of the frequency domain resources of the PUSCH transmitted by using the second TTI length are overlapped with the PUSCH transmitted by using the first TTI length.

Specifically, the implementation may be in two cases, one is that the grants are all sent by the same base station, and the other is that the grants are sent by different base stations; this behavior determined by the base station can be achieved by inter-base station interaction if it is transmitted by different base stations.

Specifically, the UL grant _1 and the UL grant _2 correspond to the same or different terminals, or the PUSCH transmitted using the first TTI length and the PUSCH transmitted using the second TTI length are of the same terminal or different terminals.

Specifically, the notification signaling P may be carried in a Downlink Control channel, for example, sent in a DCI (Downlink Control Information) format of the Downlink Control channel, and may carry notification Information of one or more terminals.

In an implementation, the uplink notification signaling is sent in legacy control region or in a control region of PUSCH for scheduling transmissions of the second TTI length.

In a specific implementation, the legacy control region is a subframe where the PUSCH transmitted according to the first TTI length is located or a legacy control region before the subframe.

Specifically, the notification signaling P is sent in a legacy control region or in a control region of a PUSCH for scheduling transmission of the second TTI length; the legacy control region is a subframe where the PUSCH transmitted by using the first TTI length is located or a legacy control region before the subframe.

Specifically, the puncuture behavior sets mapping data on corresponding time domain and frequency domain resources to 0.

Specifically, the notification signaling P may further notify the frequency domain resources on the partial symbol, and the terminal only performs the serving on the notified frequency domain resources.

In the following, a description is given of a terminal-side implementation, wherein, for the sake of brevity, reference may be made to a base station-side implementation according to corresponding principles.

Fig. 3 is a schematic flow chart of an implementation of a method for processing uplink data transmission on a terminal side, as shown in the figure, the method may include:

step 301, receiving a UL grant _1 sent by a base station side to a terminal, and determining a PUSCH scheduled by the UL grant _1 and using a first TTI length for uplink transmission;

step 302, after receiving the UL grant _1, detecting an uplink notification signaling, where the uplink notification signaling is used to instruct the terminal to execute a punture on the PUSCH for performing uplink transmission using the first TTI length according to the uplink notification signaling;

and 303, after detecting the uplink notification signaling, executing a punture on the PUSCH for performing uplink transmission by using the first TTI length according to the uplink notification signaling.

Specifically, the terminal receives a UL grant _1, and determines to transmit a PUSCH using a first TTI length at a first time position; the terminal detects a notification signaling P, wherein the notification signaling is used for determining which part of symbols in the PUSCH using the first TTI length are used for carrying out the serving; when the terminal detects the notification signaling P, performing a puncuture on the information on the corresponding resource in the PUSCH using the first TTI length determined based on the notification signaling P.

The following describes the implementation of the downlink, wherein for simplicity, the technical means similar to the uplink can be referred to the implementation of the uplink.

Fig. 4 is a schematic flow chart of an implementation of a downlink data transmission indication method on a base station side, as shown in the figure, the method may include:

step 401, sending a DL grant _1 to a terminal at a base station side for scheduling a PDSCH downlink transmitted using a first TTI length;

step 402, executing the pungency and sending a downlink notification signaling to the terminal to instruct the terminal to determine, according to the downlink notification signaling, a symbol on which the pungency is executed on the PDSCH which performs downlink transmission using the first TTI length.

Specifically, the base station transmits DL grant _1 (Downlink scheduling information) to schedule a PDSCH (Physical Downlink Shared Channel) transmitted with the first TTI length; the base station always transmits a notification signaling P for the terminal to determine which part of symbols in the PDSCH transmitted using the first TTI length to proceed with the serving, or when it is determined that the following condition is satisfied.

In the implementation, the method can further comprise the following steps:

Specifically, the signaling P for sending notification may be: a base station sends DL grant _2 to schedule a PDSCH transmitted by using the second TTI length, the time domain position of the PDSCH transmitted by using the second TTI length is contained in the time domain position of the PDSCH transmitted by using the first TTI length, all or part of frequency domain resources of the PDSCH transmitted by using the second TTI length are overlapped with the PDSCH transmitted by using the first TTI length, and the second TTI length is smaller than the first TTI length; or the base station determines that a PDSCH transmitted by using the second TTI length exists in the time domain position of the PDSCH transmitted by using the first TTI length, and all or part of frequency domain resources of the PDSCH transmitted by using the second TTI length are overlapped with the PDSCH transmitted by using the first TTI length.

Fig. 5 is a schematic flow chart of an implementation of a method for processing downlink data transmission on a terminal side, as shown in the figure, the method may include:

step 501, receiving a DL grant _1 sent by a base station side to a terminal;

step 502, receiving the PDSCH scheduled by the DL grant _1 and using the first TTI length for downlink transmission;

step 503, detecting a downlink notification signaling, where the downlink notification signaling is used to instruct the terminal to determine, according to the downlink notification signaling, a symbol on which a punture has been executed on the PDSCH that performs downlink transmission using the first TTI length;

step 504, after the downlink notification signaling is detected, determining a symbol on which a punture has been performed on the PDSCH which performs downlink transmission using the first TTI length according to the downlink notification signaling.

Specifically, the terminal receives a DL grant _1, and receives a PDSCH scheduled by the DL grant _1 and using a first TTI length; the terminal detects a notification signaling P, wherein the notification signaling is used for determining which part of symbols in the PDSCH using the first TTI length is used for carrying out the serving; when the terminal detects the notification signaling P, performing a puncuture on information on corresponding resources in the PDSCH using the first TTI length determined based on the notification signaling P.

The following description will be made by using examples, and for better explanation, the terminal 1 and the terminal 2 will be taken as examples in the description.

Example 1:

fig. 6 is a schematic diagram of indicating a PUSCH of a terminal 1 to be a puncture by a base station in embodiment 1, as shown in the figure, it is assumed that the base station sends a UL grant _1 in a conventional control region (occupying first 1-4 OFDM (Orthogonal frequency division multiplexing) symbols of a subframe) of a downlink subframe n to indicate that the terminal 1 schedules a PUSCH transmitted in a TTI of 1ms length, it is assumed that the UL grant _1 is transmitted in an uplink subframe n +4 according to a TTI PUSCH of 1ms length scheduled by a certain scheduling timing, the base station sends a TTI of 2 symbols in the downlink subframe n +3 by using short DCI (short DCI) and transmits the PUSCH transmitted in a TTI of 2 symbols, and the short TTI data is transmitted in symbol positions 8 and 9 of the TTI of the uplink subframe n +4, and frequency resources are completely overlapped.

The base station selects to send the UL grant _2 on the downlink subframe n +3 and simultaneously sends a notification signaling P, an indication field of the notification signaling P is information of 6 bits, the first 4 bits indicate starting symbol positions of the punture, and can indicate 1-14 different starting symbol positions, the last 2 bits indicate symbol lengths of the punture, and can indicate three different symbol lengths of 2, 4 and 7. Suppose the notification signaling sent by the base station indicates that the 2-symbol-length punch operation is started at the 8 th symbol.

After receiving the UL grant _1, the terminal 1 determines to transmit the PUSCH with the TTI length of 1ms on the uplink subframe n + 4. Assuming that the terminal 1 supports blind detection of the legacy control region and the short DCI region, the terminal 1 starts to detect the notification signaling after receiving the UL grant _1, and the ending position of the detection time window is determined by the processing capability of the terminal 1. Assuming that the 1 st to 14 th symbols of the uplink subframe are allowed to proceed with the future, the detection time window ending position plus the time for the terminal 1 to process the notification signaling P cannot exceed the starting position of the 13 th symbol of the subframe n + 4. After detecting the notification signaling P, the terminal 1 determines, according to the indication information of 6 bits, that the puncuture is performed at the 8 th and 9 th symbol positions of the PUSCH with the TTI length of 1ms in the uplink subframe n +4, that is, the mapping data on these symbols is set to 0.

In the example, the notification signaling P can be sent at a position before the UL grant _2, and the base station only needs to know in advance that there is a scheduling behavior of UL grant _ 2; the notification signaling P may be transmitted at a position after the transmission of the UL grant _2, as long as the position does not exceed the aforementioned end position of the time window.

Example 2:

fig. 7 is a schematic diagram of indicating, by the base station, the PUSCH of the terminal 1 as a puncuture in embodiment 2, and as shown in fig. 7, it is assumed that the base station sends a UL grant _1 in a conventional control region of a downlink subframe n to indicate that the terminal 1 schedules a PUSCH transmitted in a TTI of 1ms length, and it is assumed that the UL grant _1 is transmitted in an uplink subframe n +4 according to a TTI PUSCH of 1ms length scheduled by a certain scheduling timing sequence, the base station sends a UL grant _2 in a conventional control region of the downlink subframe n +3 to schedule a TTI of 2 symbols to transmit a PUSCH, and this short TTI data is transmitted at symbol positions 13 and 14 of a TTI of 1ms length of the uplink subframe n +4, and frequency resources are completely overlapped. The base station selects to send the UL grant _2 in the downlink subframe n +3 traditional control area and simultaneously sends a notification signaling P, the indication domain of the notification signaling P is information of 6 bits, the first 4 bits indicate the starting symbol position of the punture, and can indicate 1-14 different starting symbol positions, the second 2 bits indicate the symbol length of the punture, and can indicate three different symbol lengths of 2, 4 and 7. Suppose that the notification signaling sent by the base station indicates that the 2-symbol-length punch operation is started at the 13 th symbol.

After receiving the UL grant _1, the terminal 1 determines to transmit the PUSCH with the TTI length of 1ms on the uplink subframe n + 4. Assuming that the terminal 1 can only support blind detection of the conventional control region, the terminal 1 starts to detect the notification signaling in the next downlink subframe after receiving the UL grant _1, and only detects the conventional control region of each downlink subframe, where the ending position of the detection time window is determined by the processing capability of the terminal 1 and is the ending position of the conventional control region of the downlink subframe. Assuming that the 1 st to 14 th symbols of the uplink subframe are allowed to perform the punture, the detection time window ending position plus the time for the terminal 1 to process the notification signaling P cannot exceed the starting position of the 13 th symbol of the subframe n +4, where the starting position of the time window is the starting position of the subframe n +1 and the ending position is the ending position of the conventional control region of the subframe n +4 as shown in fig. 3. After detecting the notification signaling P, the terminal 1 determines, according to the indication information of 6 bits, that 13 th and 14 th symbol positions of the PUSCH with the TTI length of 1ms in the uplink subframe n +4 are processed, that is, the mapping data on these symbols are set to 0.

In this example, the notification signaling P may be sent in the conventional control region before the UL grant _2, and the base station only needs to know in advance that there is a scheduling behavior of the UL grant _ 2; the notification signaling P may also be sent in the legacy control region after the UL grant _2 is sent, as long as the end position of the time window described above is not exceeded.

Example 3:

fig. 8 is a schematic diagram of the base station indicating the PUSCH of the terminal 1 to be processed in the future according to embodiment 3, as shown in fig. 8, it is assumed that the base station sends UL grant _1 in the legacy control region of the downlink subframe n to instruct the terminal 1 to schedule a PUSCH transmitted in a TTI of 1ms length, it is assumed that the UL grant _1 is transmitted in the uplink subframe n +4 according to a 1ms TTI PUSCH scheduled by a certain scheduling timing, the base station sends UL grant _2 in the short DCI of the downlink subframe n +1 to schedule 1 TTI of 2 symbols in length to transmit the PUSCH, the TTI data is transmitted at the 6 th and 7 th symbol positions of 1ms TTI of the uplink subframe n +4, the frequency resources are completely overlapped, the base station transmits 1 TTI with the length of 2 symbols to transmit PUSCH in the short DCI of the downlink subframe n +2 to the UL grant _3, the TTI data is transmitted at the 9 th and 10 th symbol positions of 1ms TTI of the uplink subframe n +4, and the frequency resources are completely overlapped. The base station selects the shortened DCI of the downlink subframe n +3 to send a notification signaling P, the notification signaling P comprises two pieces of information with an indication domain of 6 bits, the two pieces of information have 12-bit indication information in total, in each piece of indication information with 6 bits, the first 4 bits indicate the starting symbol position of the pure, 1-14 different starting symbol positions can be indicated, the second 2 bits indicate the symbol length of the pure, and three different symbol lengths of 2, 4 and 7 can be indicated. It is assumed that the notification signaling sent by the base station indicates that the puncuture is performed on the 6 th, 7 th and 9 th, 10 th symbols.

After receiving the UL grant _1, the terminal 1 determines to transmit the PUSCH with the TTI length of 1ms on the uplink subframe n + 4. Assuming that the terminal 1 supports blind detection of a legacy control region (occupying the first 1-4 OFDM symbols of a subframe) and a short DCI region, the terminal 1 starts to detect the notification signaling after receiving the UL grant _1, and the end position of the detection time window is determined by the processing capability of the terminal 1. Assuming that the 1 st to 14 th symbols of the uplink subframe are allowed to proceed with the future, the detection time window ending position plus the time for the terminal 1 to process the notification signaling P cannot exceed the starting position of the 13 th symbol of the subframe n + 4. After detecting the notification signaling P, the terminal 1 determines, according to the indication information of the first 6 bits, to perform puncturing at the 6 th and 7 th symbol positions of the PUSCH with the TTI length of 1ms in the uplink subframe n +4, that is, to set the mapping data on these symbols to 0, and determines, according to the indication information of the last 6 bits, to perform puncturing at the 9 th and 10 th symbol positions of the PUSCH with the TTI length of 1ms in the uplink subframe n +4, that is, to set the mapping data on these symbols to 0.

In an example, two notification signaling corresponding to UL grant _2 and UL grant _3 may also be sent respectively, where the two notification signaling respectively carry 6-bit location information corresponding to two forwarding operations.

Example 4:

fig. 9 is a schematic diagram of indicating, by the base station, the PUSCH of the terminal 1 to be processed with a puncuture in embodiment 4, as shown in fig. 9, it is assumed that the base station sends a UL grant _1 in a conventional control region of a downlink subframe n to indicate that the terminal 1 schedules a PUSCH transmitted in a TTI with a length of 7 symbols, and it is assumed that the UL grant _1 schedules a PUSCH transmitted in a TTI with a length of 2 symbols in a first slot on an uplink subframe n +2 according to a certain scheduling timing, and the base station sends a TTI PUSCH transmitted in a TTI with a length of 2 symbols in the downlink subframe n +1 using a shortened DCI, and this short TTI data is transmitted in symbol positions 5 and 6 of the TTI with a length of 7 symbols in the uplink subframe n +2, and frequency resources are completely overlapped.

The base station selects to send the UL grant _2 on the downlink subframe n +2 and simultaneously sends a notification signaling P, an indication field of the notification signaling P is information of 6 bits, the first 4 bits indicate starting symbol positions of the punture, and can indicate 1-14 different starting symbol positions, the last 2 bits indicate symbol lengths of the punture, and can indicate three different symbol lengths of 2, 4 and 7. Suppose the notification signaling sent by the base station indicates that the 2-symbol-length punch operation is started at the 5 th symbol.

After receiving the UL grant _1, the terminal 1 determines to transmit the PUSCH with the TTI length of 1ms on the uplink subframe n + 2. Assuming that the terminal 1 supports the blind detection of the legacy control region (occupying the first 1-4 OFDM symbols of a subframe) and the short DCI, the terminal 1 starts to detect the notification signaling after receiving the UL grant _1, and the end position of the detection time window is determined by the processing capability of the terminal 1. Assuming that 1-7 symbols of the scheduled 7 symbol length TTI PUSCH are allowed to proceed with the punture, the detection time window end position plus the time that terminal 1 processes the notification signaling P cannot exceed the start position of the 6 th symbol of the scheduled 7 symbol length TTI PUSCH. After detecting the notification signaling P, the terminal 1 determines, according to the indication information of 6 bits, to perform a punture at the 5 th and 6 th symbol positions of the TTI PUSCH with a length of 7 symbols of the uplink subframe n +2, that is, sets the mapping data on these symbols to 0.

Example 5:

fig. 10 is a schematic diagram of indicating the downlink of the PDSCH by the base station in embodiment 5, and as shown in fig. 10, it is assumed that the base station sends a DL grant _1 in the conventional control region of the downlink subframe n to indicate that the terminal 1 receives a PDSCH transmitted in a TTI of 1ms length, the PDSCH of 1ms length is transmitted in the downlink subframe n, the base station sends a DL grant _2 in a short DCI of the downlink subframe n to schedule 1 TTI of 2 symbols for PDSCH transmission, the short TTI data is transmitted in the 9 th and 10 th symbol positions of the TTI of 1ms length, and frequency resources are completely overlapped. The base station selects to send a notification signaling P on the legacy control region of the downlink subframe n, where the notification signaling instructs the terminal 1 to determine the 9 th and 10 th symbols in the PDSCH transmitted in the TTI of 1ms length to proceed with the forwarding.

After receiving the DL grant _1, the terminal 1 determines to receive the PDSCH of TTI length 1ms on the uplink subframe n, and at the same time, detects the notification signaling P in the subframe n, and after detecting the notification signaling P in the conventional control region, the terminal 1 determines to perform the punture at the 9 th and 10 th symbol positions of the PDSCH of TTI length 1ms in the subframe n, and determines all the data bits received at these symbol positions to be 0 or 1.

Example 6:

fig. 11 is a schematic diagram of indicating the puncuture of the PDSCH by the base station in embodiment 6, and as shown in fig. 11, it is assumed that the base station sends a DL grant _1 in the conventional control region of the downlink subframe n to indicate that the terminal 1 receives a PDSCH transmitted in a TTI of 1ms length, the PDSCH of 1ms length is transmitted in the downlink subframe n, the base station sends a DL grant _2 in a short DCI of the downlink subframe n to schedule 1 TTI of 2 symbols for PDSCH transmission, the short TTI data is transmitted in the 9 th and 10 th symbol positions of the TTI of 1ms length, and frequency resources are completely overlapped. The base station selects to transmit a notification signaling P at the same time as the DL grant _2, the notification signaling instructing the terminal 1 to determine that the 9 th and 10 th symbols in the PDSCH transmitted in the 1ms length TTI of the subframe n are to be processed.

After receiving the DL grant _1, the terminal 1 determines to receive the PDSCH of TTI length 1ms on the uplink subframe n, and at the same time, the terminal 1 detects the notification signaling P on the subframe n, and after detecting the notification signaling P, the terminal 1 determines to perform the punture at the 9 th and 10 th symbol positions of the PDSCH of TTI length 1ms on the subframe n, and determines all the data bits received at these symbol positions to be 0 or 1.

Based on the same inventive concept, embodiments of the present invention further provide an uplink data transmission indicating device, an uplink data transmission processing device, a downlink data transmission indicating device, and a downlink data transmission processing device, and because the principles of solving the problems of these devices are similar to an uplink data transmission indicating method, an uplink data transmission processing method, a downlink data transmission indicating method, and a downlink data transmission processing method, the implementation of these devices may refer to the implementation of the methods, and the repeated parts are not described again.

Fig. 12 is a schematic structural diagram of an uplink data transmission indicating device on a base station side, as shown in the figure, the uplink data transmission indicating device may include:

an uplink sending module 1201, configured to send, to the terminal at the base station side, a UL grant _1 for scheduling a PUSCH for uplink transmission using the first TTI length;

an uplink notification module 1202, configured to send an uplink notification signaling to the terminal after sending the UL grant _1, so as to instruct the terminal to execute a punture on the PUSCH for performing uplink transmission according to the uplink notification signaling.

Fig. 13 is a schematic structural diagram of a terminal-side upstream data transmission processing apparatus, as shown in the figure, the apparatus may include:

an uplink receiving module 1301, configured to receive an UL grant _1 sent by a base station to a terminal, and determine a PUSCH scheduled by the UL grant _1 and performing uplink transmission using a first TTI length;

an uplink detection module 1302, configured to detect an uplink notification signaling after receiving the UL grant _1, where the uplink notification signaling is used to instruct the terminal to execute a puncute on the PUSCH performing uplink transmission according to the uplink notification signaling, where the PUSCH uses the first TTI length;

and an uplink puncturing module 1303, configured to execute a puncuture on the PUSCH for performing uplink transmission according to the first TTI length according to the uplink notification signaling after the uplink notification signaling is detected.

Fig. 14 is a schematic structural diagram of a downlink data transmission indicating apparatus on a base station side, as shown in the figure, the downlink data transmission indicating apparatus may include:

a downlink transmission module 1401, configured to transmit, to the terminal at the base station side, a DL grant _1 for scheduling a PDSCH that uses the first TTI length for downlink transmission;

a downlink notification module 1402, configured to execute the serving and send a downlink notification signaling to the terminal to instruct the terminal to determine, according to the downlink notification signaling, a symbol on the PDSCH that performs downlink transmission using the first TTI length and on which the serving is already executed.

Fig. 15 is a schematic structural diagram of a terminal-side downlink data transmission processing apparatus, as shown in the figure, the apparatus may include:

a downlink receiving module 1501, configured to receive a DL grant _1 sent by a base station to a terminal;

a downlink detection module 1502, configured to detect a downlink notification signaling, where the downlink notification signaling is used to instruct a terminal to determine, according to the downlink notification signaling, a symbol on which a grant has been executed on the PDSCH that performs downlink transmission using the first TTI length;

a downlink determining module 1503, configured to determine, according to the downlink notification signaling after detecting the downlink notification signaling, a symbol on which a puncuture has been executed on the PDSCH that performs downlink transmission using the first TTI length.

For convenience of description, each part of the above-described apparatus is separately described as being functionally divided into various modules or units. Of course, the functionality of the various modules or units may be implemented in the same one or more pieces of software or hardware in practicing the invention.

When the technical scheme provided by the embodiment of the invention is implemented, the implementation can be carried out as follows.

Fig. 16 is a schematic structural diagram of a first base station, as shown, the base station includes:

the processor 1600, which is used to read the program in the memory 1620, executes the following processes:

processing data according to the requirement of the transceiver;

a transceiver 1610 configured to receive and transmit data under the control of the processor 1600, the following processes being performed:

In an implementation, the method further comprises the following steps:

In fig. 16, among other things, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by the processor 1600 and various circuits of the memory represented by the memory 1620 linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1610 can be a plurality of elements including a transmitter and a transceiver providing a means for communicating with various other apparatus over a transmission medium. The processor 1600 is responsible for managing the bus architecture and general processing, and the memory 1620 may store data used by the processor 1600 in performing operations.

Fig. 17 is a schematic structural diagram of a first terminal, and as shown in the figure, the terminal includes:

a processor 1700 configured to read the program in the memory 1720 and execute the following processes:

after the uplink notification signaling is detected, executing a punture on the PUSCH which uses the first TTI length for uplink transmission according to the uplink notification signaling;

a transceiver 1710 for receiving and transmitting data under the control of the processor 1700, performing the following processes:

and receiving a UL grant _1 sent by a base station side to a terminal, and determining a PUSCH (physical uplink shared channel) scheduled by the UL grant _1 and using a first TTI (transmission time interval) length for uplink transmission.

In fig. 17, among other things, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 1700 and various circuits of memory represented by memory 1720 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1710 may be a number of elements including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium. The user interface 1730 may also be an interface capable of interfacing with a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 1700 is responsible for managing the bus architecture and general processing, and the memory 1720 may store data used by the processor 1700 in performing operations.

Fig. 18 is a schematic structural diagram of a second base station, as shown in the figure, the base station includes:

the processor 1800, which reads the program stored in the memory 1820, executes the following processes:

processing data according to the requirement of the transceiver;

a transceiver 1810 for receiving and transmitting data under the control of the processor 1800, the following processes being performed:

In an implementation, the method further comprises the following steps:

In fig. 18, among other things, the bus architecture may include any number of interconnected buses and bridges with various circuits including one or more processors, represented by the processor 1800, and memory, represented by the memory 1820. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1810 may be a plurality of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 1800 is responsible for managing the bus architecture and general processing, and the memory 1820 may store data used by the processor 1800 in performing operations.

Fig. 19 is a schematic structural diagram of a second terminal, as shown in the figure, the terminal includes:

the processor 1900, which reads the program in the memory 1920, executes the following processes:

after the downlink notification signaling is detected, determining symbols with the performance of the downlink transmission on the PDSCH using the first TTI length according to the downlink notification signaling;

a transceiver 1910 for receiving and transmitting data under the control of the processor 1900, performing the following processes:

receiving DL grant _1 sent by a base station side to a terminal;

and receiving the PDSCH which is scheduled by the DL grant _1 and carries out downlink transmission by using the first TTI length.

In fig. 19, among other things, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 1900 and various circuits of memory represented by memory 1920 linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1910 may be multiple elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium. User interface 1930 may also be an interface to connect externally to a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 1900 is responsible for managing the bus architecture and general processing, and the memory 1920 may store data used by the processor 1900 when performing operations.

In summary, in the technical solution provided in the embodiment of the present invention, a behavior scheme is provided for controlling a terminal that is ready to transmit TTI data of a certain length by sending an announcement signaling through a base station, so that a collision problem that TTI data of different lengths are transmitted simultaneously in the same subframe and the same carrier is solved, an influence of the collision on data demodulation is reduced, and a receiving performance of a receiving end is improved.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. An uplink data transmission indication method, comprising:

sending uplink scheduling information UL grant _1 to a terminal at a base station side to schedule a Physical Uplink Shared Channel (PUSCH) which uses a first Transmission Time Interval (TTI) length for uplink transmission;

after sending the UL grant _1, sending an uplink notification signaling to the terminal to instruct the terminal to execute a punching punch on the PUSCH which uses the first TTI length for uplink transmission according to the uplink notification signaling;

2. The method of claim 1, wherein if the base station side is going to send UL grant _2 for scheduling a PUSCH for uplink transmission using the second TTI length, the base station side determines that there is a PUSCH for transmission using the second TTI length within a time domain location where the PUSCH for transmission using the first TTI length is located;

3. The method of claim 2, wherein the UL grant _2 is transmitted from the base station side to the terminal or other terminals.

4. The method of claim 1, wherein the PUSCH transmitted using the first TTI length is the terminal;

5. The method of claim 1, wherein the uplink notification signaling sent to the terminal or other terminals is carried in a downlink control channel.

6. The method of claim 1, wherein the uplink notification signaling is sent in a legacy control region or in a control region of a PUSCH used to schedule transmissions of a second TTI length.

7. The method of claim 6, wherein the legacy control region is a subframe in which the PUSCH transmitted using the first TTI length is located or a legacy control region preceding the subframe.

8. The method of claim 1, wherein said executing a puncuture comprises: and setting the mapping data on the corresponding time domain and frequency domain resources as 0.

9. The method of any of claims 1 to 8, wherein the uplink signaling is further used to inform frequency domain resources for performing a punture.

10. An uplink data transmission processing method, comprising:

and the base station side determines that a PUSCH transmitted by using the second TTI length exists in the time domain position where the PUSCH transmitted by using the first TTI length is located during the uplink notification signaling, and transmits all or part of frequency domain resources of the PUSCH transmitted by using the second TTI length when the PUSCH transmitted by using the first TTI length is overlapped with the PUSCH transmitted by using the first TTI length, wherein the second TTI length is smaller than the first TTI length.

11. The method of claim 10, wherein the uplink notification signaling is carried in a downlink control channel.

12. The method of claim 10, wherein the uplink notification signaling is sent in a legacy control region or in a control region of a PUSCH for scheduling transmissions of a second TTI length.

13. The method of claim 12, wherein the legacy control region is a subframe in which the PUSCH transmitted using the first TTI length is located or a legacy control region before the subframe.

14. The method of claim 10, wherein said executing a puncuture comprises: and setting the mapping data on the corresponding time domain and frequency domain resources as 0.

15. The method of any of claims 10 to 14, wherein the uplink signaling is further used to inform frequency domain resources for performing a punture.

16. A downlink data transmission indication method is characterized by comprising the following steps:

sending downlink scheduling information DL grant _1 to a terminal at a base station side to schedule a Physical Downlink Shared Channel (PDSCH) which uses a first TTI length for downlink transmission;

executing the drift and sending a downlink notification signaling to the terminal to indicate the terminal to determine a symbol on which the drift is executed on the PDSCH which performs downlink transmission by using the first TTI length according to the downlink notification signaling;

17. The method of claim 16, wherein if the base station side is going to transmit DL grant _2 for scheduling a PDSCH downlink transmission using the second TTI length, the base station side determines that a PDSCH transmitted using the second TTI length exists in a time domain location where the PDSCH transmitted using the first TTI length is located;

18. The method of claim 17, wherein the DL grant _2 is transmitted from the base station side to the terminal or other terminals.

19. The method of claim 16, wherein the PDSCH transmitted using the first TTI length is the terminal;

20. The method of claim 16, wherein the downlink notification signaling sent by the base station to the terminal or other terminals is carried in a downlink control channel.

21. The method of claim 16, wherein the downlink notification signaling is sent in a legacy control region or in a control region of a PDSCH scheduling transmissions of the second TTI length.

22. The method of claim 21, wherein the legacy control region is a subframe or a legacy control region preceding the subframe in which the PDSCH transmitted using the first TTI length is located.

23. The method of claim 16, wherein the symbol on which the puncuture has been performed is a symbol in which mapping data on corresponding time and frequency domain resources is set to 0.

24. The method of any of claims 16 to 23, wherein the downlink signaling is further used to inform frequency domain resources for determining symbols for which a pure is performed.

25. A downlink data transmission processing method is characterized by comprising the following steps:

receiving DL grant _1 sent by a base station side to a terminal;

the downlink notification signaling is sent when the base station side determines that a PDSCH transmitted by using the second TTI length exists in a time domain position where the PDSCH transmitted by using the first TTI length is located, and all or part of frequency domain resources of the PDSCH transmitted by using the second TTI length are overlapped with the PDSCH transmitted by using the first TTI length, and the second TTI length is smaller than the first TTI length.

26. The method of claim 25, wherein the downlink notification signaling is carried in a downlink control channel.

27. The method of claim 25, wherein the downlink notification signaling is sent in a legacy control region or in a control region of a PDSCH scheduling transmissions of the second TTI length.

28. The method of claim 27, wherein the legacy control region is a subframe or a legacy control region preceding the subframe in which the PDSCH transmitted using the first TTI length is located.

29. The method of claim 25, wherein the symbol on which the puncuture has been performed is a symbol in which mapping data on corresponding time and frequency domain resources is set to 0.

30. The method of any of claims 25 to 29, wherein the downlink signaling is further used to inform frequency domain resources for determining symbols for which a pure is performed.

31. An uplink data transmission indicating device, comprising:

an uplink notification module, configured to send an uplink notification signaling to the terminal after sending the UL grant _1, so as to instruct the terminal to execute a punture on the PUSCH for performing uplink transmission according to the uplink notification signaling, where the PUSCH uses the first TTI length;

the uplink notification module is further configured to send, after sending the UL grant _1, an uplink notification signaling to the terminal to instruct the terminal to execute a puncuture on the PUSCH for performing uplink transmission using the first TTI length according to the uplink notification signaling, if the base station side determines that a PUSCH transmitted using the second TTI length exists in the time domain position where the PUSCH transmitted using the first TTI length is located, and all or part of frequency domain resources of the PUSCH transmitted using the second TTI length overlap with the PUSCH transmitted using the first TTI length, and the second TTI length is smaller than the first TTI length.

32. The apparatus of claim 31, wherein the uplink notifying module is further configured to determine that there is a PUSCH transmitted with a second TTI length within a time domain location where the PUSCH transmitted with the first TTI length is located, if the base station side is to transmit UL grant _2 for scheduling a PUSCH transmitted with an uplink transmission with the second TTI length; and/or if other base stations transmit the PUSCH by using the second TTI length, determining that the PUSCH transmitted by using the second TTI length exists in the time domain position of the PUSCH transmitted by using the first TTI length.

33. The apparatus of claim 32, wherein the UL grant _2 is transmitted from a base station side to the terminal or other terminals.

34. The apparatus of claim 31, wherein the PUSCH transmitted using the first TTI length is the terminal;

35. The apparatus of claim 31, wherein the uplink notification module is further configured to send the uplink notification signaling to the terminal or other terminals to be carried in a downlink control channel.

36. The apparatus of claim 31, wherein the uplink notification module is further for transmitting the uplink notification signaling in a legacy control region or in a control region of a PUSCH for scheduling transmissions of the second TTI length.

37. The apparatus of claim 36, wherein the legacy control region is a subframe or a legacy control region preceding the subframe in which the PUSCH transmitted using the first TTI length is located.

38. The apparatus of claim 31, wherein the executing the pure comprises: and setting the mapping data on the corresponding time domain and frequency domain resources as 0.

39. The apparatus of any of claims 31 to 38, wherein the uplink signaling is further configured to notify frequency domain resources for performing a punture.

40. An uplink data transmission processing apparatus, comprising:

an uplink punching module, configured to, after detecting the uplink notification signaling, execute a punture on the PUSCH for performing uplink transmission using the first TTI length according to the uplink notification signaling;

41. The apparatus of claim 40, wherein the uplink notification signaling is carried in a downlink control channel.

42. The apparatus of claim 40, wherein the uplink notification signaling is sent in a legacy control region or in a control region of a PUSCH used to schedule transmissions of a second TTI length.

43. The apparatus of claim 42, wherein the legacy control region is a subframe or a legacy control region preceding the subframe in which the PUSCH transmitted using the first TTI length is located.

44. The apparatus of claim 40, wherein the executing the schema comprises: and setting the mapping data on the corresponding time domain and frequency domain resources as 0.

45. The apparatus of any of claims 40 to 44, wherein the uplink signaling is further configured to notify frequency domain resources for performing a punture.

46. A downlink data transmission indicating device, comprising:

a downlink notification module, configured to execute a downlink and send a downlink notification signaling to the terminal to indicate that the terminal determines, according to the downlink notification signaling, a symbol on the PDSCH that performs downlink transmission using the first TTI length and on which the downlink has been executed;

the downlink notification module is further configured to execute the puncuture and send a downlink notification signaling to the terminal to indicate the terminal to determine, according to the downlink notification signaling, that a symbol of the puncuture has been executed on the PDSCH which is subjected to downlink transmission using the first TTI length is determined, if the base station side determines that the PDSCH which is transmitted using the second TTI length exists in the time domain location where the PDSCH which is transmitted using the first TTI length is located, and all or part of frequency domain resources of the PDSCH which is transmitted using the second TTI length overlap with the PDSCH which is transmitted using the first TTI length, and the second TTI length is smaller than the first TTI length.

47. The apparatus of claim 46, wherein the downlink notification module is further configured to determine that there is a PDSCH transmitted with a second TTI length in a time domain location where the PDSCH transmitted with the first TTI length is located, if the base station side is to transmit DL grant _2 for scheduling a PDSCH transmitted in downlink with the second TTI length; and/or if other base stations transmit the PDSCH by using the second TTI length, determining that the PDSCH transmitted by using the second TTI length exists in the time domain position where the PDSCH transmitted by using the first TTI length is located.

48. The apparatus of claim 46, wherein the DL grant _2 is transmitted from a base station side to the terminal or other terminals.

49. The apparatus of claim 46, wherein the PDSCH transmitted using the first TTI length is the terminal;

50. The apparatus of claim 46, wherein the downlink notification module is further configured to send the downlink notification signaling to the terminal or other terminals to be carried in a downlink control channel.

51. The apparatus of claim 46, wherein the downlink notification module is further for transmitting the downlink notification signaling in a legacy control region or in a control region for a PDSCH scheduling transmissions of the second TTI length.

52. The apparatus of claim 51, wherein the legacy control region is a subframe or a legacy control region preceding the subframe in which the PDSCH transmitted using the first TTI length is located.

53. The apparatus of claim 46, wherein the symbol for which a puncutre has been performed is a symbol for which mapping data on corresponding time and frequency domain resources is set to 0.

54. The apparatus of any of claims 46 to 53, wherein the downlink signaling is further used to inform frequency domain resources for determining symbols for which a pure is performed.

55. A downlink data transmission processing apparatus, comprising:

a downlink determining module, configured to determine, according to the downlink notification signaling, a symbol on which a punture has been performed on the PDSCH that performs downlink transmission using the first TTI length after detecting the downlink notification signaling;

56. The apparatus of claim 55, wherein the downlink notification signaling is carried in a downlink control channel.

57. The apparatus of claim 55, wherein the downlink notification signaling is sent in a legacy control region or in a control region of a PDSCH used to schedule transmissions of the second TTI length.

58. The apparatus of claim 57, wherein the legacy control region is a subframe or a legacy control region preceding the subframe in which the PDSCH transmitted using the first TTI length is located.

59. The apparatus of claim 55, wherein the symbol for which a puncutre has been performed is a symbol for which mapping data on corresponding time and frequency domain resources is set to 0.

60. The apparatus of any of claims 55 to 59, wherein the downlink signaling is further used to inform frequency domain resources for determining symbols for which a pure is performed.