WO2019154274A1 - Data transmission method, device and equipment, and computer-readable storage medium - Google Patents

Abstract

A data transmission method, device and equipment, and a computer-readable storage medium, the data transmission method comprising: acquiring transmission mode configuration information (101); and when the transmission mode configuration information indicates that it is necessary to carry out data transmission by using consecutive transmission time interval (TTIs), transmitting data to be transmitted to a receiving end by using M consecutive TTIs on the same carrier (102), wherein the last symbol of the first TTI to the M-1th TTI in the M consecutive TTIs is subject to data mapping, and the last symbol of the Mth TTI is used as a guard period (GP), M being an integer greater than or equal to 2.

Description

Data transmission method, device, device and computer readable storage medium

Cross-reference to related applications

The present application claims priority to Chinese Patent Application No. 201101136188.0, filed on Jan.

Technical field

The embodiments of the present disclosure relate to the field of communications technologies, and in particular, to a data transmission method, apparatus, device, and computer readable storage medium.

Background technique

In the related art, LTE (Long Term Evolution) V2X (Vehicle to X, Vehicle to X, X stands for Infrastructure, Vehicle, Pedestrian, etc., X can also be any possible In the "Everything" technology (such as Rel-14 LTE V2X technology), the PC5 interface (also known as the through link, described as Sidelink) that transmits data between the V2X terminal and the V2X terminal is already available. Supports the transmission of basic road safety-based services, which are mainly for the service packet size between 50-1200 bytes, and the reliability of the required service packets within the specified coverage is greater than 95%.

With the further development of the Internet of Vehicles technology, the emergence of new application scenarios such as vehicle formation, advanced driving, sensor information sharing, and remote control has placed higher demands on the straight-through links between V2X terminals and V2X terminals. The data packets carried are larger, the transmission reliability is higher (some applications need to transmit 99.999% reliability), and the transmission distance is farther.

In R16 NR (New Radio), the system bandwidth may be large, and one symbol can carry more data, and NR has higher requirements on data rate. However, in the data transmission method in the related art, the symbols of the sub-frames are not properly utilized, and thus it is impossible to adapt to future data.

Summary of the invention

In view of this, embodiments of the present disclosure provide a data transmission method, apparatus, device, and computer readable storage medium for increasing data transmission rate.

In order to solve the above technical problem, in a first aspect, an embodiment of the present disclosure provides a data transmission method, which is applied to a V2X terminal as a transmitting end, and includes:

Obtain transmission mode configuration information;

When the transmission mode configuration information indicates that the data transmission needs to be performed by using the continuous transmission time interval TTI, the M consecutive TTIs are used to transmit the data to be transmitted to the receiving end on the same carrier;

Wherein, in the M consecutive TTIs, the last symbol of the first TTI to the M-1th TTI is data-mapped, and the last symbol of the Mth TTI is used as a guard interval (GP), M Is an integer and M ≥ 2.

The obtaining the transmission mode configuration information includes:

Obtain the transmission mode configuration information sent by the network side device; or

Obtain the transmission mode configuration information of the system configuration.

The sending the data to be transmitted to the receiving end by using the M consecutive TTIs on the same carrier, including:

And in the case that the transmission mode configuration information indicates that the target service class or the target direct communication packet priority PPPP or the target quality of service QoS must use the continuous TTI for data transmission, for the target service class or the target PPPP or the target quality of service QoS Data to be transmitted, using M consecutive TTIs to transmit data to be transmitted on the same carrier; and/or

In the case that the transmission mode configuration information indicates that the target resource pool must use the continuous TTI for data transmission, when data transmission is performed by using the target resource pool, the data to be transmitted is transmitted by using M consecutive TTIs on the same carrier.

In the case that the transmission mode configuration information indicates that the target service class or the target PPPP or the target quality of service QoS can be transmitted by using a continuous TTI, the method further includes:

Sending transmission mode indication information to the receiving end;

The transmission mode indication information is used to indicate a target traffic class or a target PPPP or a target quality of service QoS or whether data transmission is performed using a continuous TTI in the target resource pool.

The sending the transmission mode indication information to the receiving end includes:

Transmitting the transmission mode indication information to the receiving end by using the target information in the scheduling allocation SA; and/or

Transmitting the transmission mode indication information to the receiving end by using the reserved bit in the SA;

The target information is information for indicating the transmission capability of the V2X terminal as the transmitting end.

The method further includes: before or after the obtaining the transmission mode configuration information, the method further includes:

Select consecutive M TTIs for data transmission.

The selecting the M MTIs for data transmission includes:

Obtaining the set number of transmissions N, where N is an integer, and N≥2;

In the candidate resources, searching for an idle TTI that satisfies consecutive M transmissions, and using an idle TTI that satisfies M transmissions as consecutive M TTIs for data transmission;

Where M<N;

The M consecutive TTIs have the same or different frequency domain resources; or for the same V2X terminal, the M consecutive TTIs correspond to the same transport block TB or different TBs.

Wherein the M consecutive TTIs have the same or different frequency domain resources; or

For the same V2X terminal, the M consecutive TTIs correspond to the same transport block TB or different TBs; or

For the same TB of the same V2X terminal, the continuous TTI is preferentially used for data transmission.

In a second aspect, an embodiment of the present disclosure provides a data transmission method, which is applied to a V2X as a receiving end, and includes:

Receiving data sent by the sender;

Determining whether the transmitting end utilizes a continuous TTI for data transmission;

If it is determined that the transmitting end uses the continuous TTI for data transmission, the data transmitted by the M consecutive TTIs on the same carrier in the data is combined and processed;

Wherein, in the M consecutive TTIs, the last symbol of the first TTI to the M-1th TTI is data-mapped, and the last symbol of the Mth TTI is used as GP, M is an integer and M≥2.

The determining whether the sending end utilizes a continuous TTI for data transmission includes:

Obtaining the transmission mode configuration information sent by the network side device, or obtaining the transmission mode configuration information configured by the system, or acquiring the transmission mode indication information sent by the sending end;

When the transmission mode configuration information or the transmission mode indication information indicates that the transmitting end uses a continuous TTI for data transmission, it is determined that the transmitting end uses a continuous TTI for data transmission.

In the case that the transmission mode configuration information indicates that the transmitting end uses a continuous TTI for data transmission, it is determined that the transmitting end uses a continuous TTI for data transmission, including:

In the case that the transmission mode configuration information indicates that the target service or the target service class or the target PPPP or the target quality of service QoS needs to use the continuous TTI for data transmission, it is determined that the transmitting end uses the continuous TTI for data transmission; and / or

In the case that the transmission mode configuration information indicates that the target resource pool needs to use a continuous TTI for data transmission, it is determined that the transmitting end uses a continuous TTI for data transmission.

When the transmission mode indication information indicates that the transmitting end uses a continuous TTI for data transmission, it is determined that the transmitting end uses a continuous TTI for data transmission, including:

When the target information in the SA is preset information and/or the reserved bit in the SA is a preset value, it is determined that the sending end uses a continuous TTI for data transmission;

The target information is information used to indicate the transmission capability of the transmitting end.

The determining whether the sending end utilizes a continuous TTI for data transmission includes:

If the information in the SA indicates that the time interval between the resources is 1, the received data is blindly detected; wherein the blind detection result includes a first blind detection result and a second blind detection result, the first blind detection The result is a blind detection result when data mapping is performed on the last symbol of the first TTI to the M-1th TTI, and the second blind detection result is the last of the assumption of the first TTI to the M-1th TTI. Blind detection result when a symbol is not mapped;

Performing verification on the first blind detection result and the second blind detection result respectively;

When the verification of the first blind detection result is accurate, determining that the transmitting end uses a continuous TTI for data transmission; and if the verification of the second blind detection result is accurate, determining the location The transmitting end does not utilize continuous TTI for data transmission.

In a third aspect, an embodiment of the present disclosure provides a data transmission method, which is applied to a network side device, and includes:

Selecting a TTI to be allocated for data transmission; wherein the selected TTI to be allocated is a continuous TTI;

Transmitting mode configuration information is sent to the terminal according to the selected TTI to be allocated, and the transmission mode configuration information indicates that data transmission needs to be performed by using a continuous TTI.

The selecting a TTI to be allocated for data transmission includes:

Obtaining the set number of transmissions N, where N is an integer, and N≥2;

In the candidate resource, the idle TTI that satisfies consecutive P transmissions is searched as the TTI to be allocated, where P is an integer and 2≤P≤N; in the process of selecting P, the difference between N and the selected P is preferentially selected. The smallest value.

Wherein consecutive TTIs have the same or different frequency domain resources; or consecutive TTIs correspond to the same TB or different TBs.

In a fourth aspect, an embodiment of the present disclosure provides a data transmission apparatus, including:

The obtaining module is configured to obtain transmission mode configuration information;

a transmission module, configured to: when the transmission mode configuration information indicates that data transmission is to be performed by using a continuous transmission time interval TTI, send the data to be transmitted to the receiving end by using M consecutive TTIs on the same carrier;

Wherein, in the M consecutive TTIs, the last symbol of the first TTI to the M-1th TTI is data-mapped, and the last symbol of the Mth TTI is used as GP, M is an integer and M≥2.

The acquiring module is specifically configured to acquire transmission mode configuration information sent by the network side device, or obtain transmission mode configuration information configured by the system.

In a fifth aspect, an embodiment of the present disclosure provides a data transmission apparatus, including:

a receiving module, configured to receive data sent by the sending end;

a determining module, configured to determine whether the transmitting end utilizes a continuous TTI for data transmission;

a processing module, configured to perform a combining process on the data that is transmitted by the M consecutive TTIs on the same carrier in the data, if the sending end uses the continuous TTI to perform data transmission;

Wherein, in the M consecutive TTIs, the last symbol of the first TTI to the M-1th TTI is data-mapped, and the last symbol of the Mth TTI is used as GP, M is an integer and M≥2.

The determining module includes:

Obtaining a sub-module, which is used to obtain the transmission mode configuration information sent by the network side device, or obtain the transmission mode configuration information configured by the system, or obtain the transmission mode indication information sent by the sending end;

Determining, by the determining, the submodule, in the case that the transmission mode configuration information or the transmission mode indication information indicates that the transmitting end uses a continuous TTI for data transmission, determining that the transmitting end uses a continuous TTI for data transmission. .

In a sixth aspect, an embodiment of the present disclosure provides a data transmission device, including: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor; the processor is configured to: Read the program in memory and perform the following process:

Obtaining transmission mode configuration information by using the transceiver; in the case that the transmission mode configuration information indicates that data transmission is to be performed by using a continuous transmission time interval TTI, transmitting, by using M consecutive TTIs on the same carrier, to the receiving end data;

Wherein, in the M consecutive TTIs, the last symbol of the first TTI to the M-1th TTI is data-mapped, and the last symbol of the Mth TTI is used as GP, M is an integer and M≥2.

The processor is further configured to read a program in the memory and perform the following process:

Obtain the transmission mode configuration information sent by the network side device; or obtain the transmission mode configuration information configured by the system.

The processor is further configured to read a program in the memory and perform the following process:

In the case that the transmission mode configuration information indicates that the target traffic class or the target PPPP or the target quality of service QoS must use the continuous TTI for data transmission, the data to be transmitted for the target traffic class or the target PPPP or the target quality of service QoS is the same Transmitting data to be transmitted using M consecutive TTIs on the carrier; and/or

In the case that the transmission mode configuration information indicates that the target resource pool must use the continuous TTI for data transmission, when data transmission is performed by using the target resource pool, the data to be transmitted is transmitted by using M consecutive TTIs on the same carrier.

The processor is further configured to read a program in the memory and perform the following process:

Sending transmission mode indication information to the receiving end;

The transmission mode indication information is used to indicate a target traffic class or a target PPPP or a target quality of service QoS or whether data transmission is performed using a continuous TTI in the target resource pool.

The processor is further configured to read a program in the memory and perform the following process:

Transmitting the transmission mode indication information to the receiving end by using the target information in the scheduling allocation SA; and/or

Transmitting the transmission mode indication information to the receiving end by using the reserved bit in the SA;

The target information is information for indicating the transmission capability of the V2X terminal as the transmitting end.

The processor is further configured to read a program in the memory and perform the following process:

Select consecutive M TTIs for data transmission.

The processor is further configured to read a program in the memory and perform the following process:

Obtaining the set number of transmissions N, where N is an integer, and N≥2;

In the candidate resources, searching for an idle TTI that satisfies consecutive M transmissions, and using an idle TTI that satisfies M transmissions as consecutive M TTIs for data transmission;

Where M<N;

The M consecutive TTIs have the same or different frequency domain resources; or for the same V2X terminal, the M consecutive TTIs correspond to the same transport block TB or different TBs.

Wherein the M consecutive TTIs have the same or different frequency domain resources; or

For the same V2X terminal, the M consecutive TTIs correspond to the same transport block TB or different TBs; or

For the same TB of the same V2X terminal, the continuous TTI is preferentially used for data transmission.

In a seventh aspect, an embodiment of the present disclosure provides a data transmission device, including: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor; the processor is configured to: Read the program in memory and perform the following process:

Receiving, by the transceiver, data sent by the transmitting end, determining whether the transmitting end uses a continuous TTI for data transmission, and determining that the transmitting end uses a continuous TTI for data transmission, The transmitting end performs data combining on the same carrier by using M consecutive TTI data transmissions; wherein, among the M consecutive TTIs, the last symbol of the first TTI to the M-1th TTI is data-mapped. The last symbol of the Mth TTI is used as GP, M is an integer and M≥2.

The processor is further configured to read a program in the memory and perform the following process:

Obtaining the transmission mode configuration information sent by the network side device, or obtaining the transmission mode configuration information configured by the system, or acquiring the transmission mode indication information sent by the sending end;

When the transmission mode configuration information or the transmission mode indication information indicates that the transmitting end uses a continuous TTI for data transmission, it is determined that the transmitting end uses a continuous TTI for data transmission.

The processor is further configured to read a program in the memory and perform the following process:

In the case that the transmission mode configuration information indicates that the target service or the target service class or the target PPPP or the target quality of service QoS needs to use the continuous TTI for data transmission, it is determined that the transmitting end uses the continuous TTI for data transmission; and / or

In the case that the transmission mode configuration information indicates that the target resource pool needs to use a continuous TTI for data transmission, it is determined that the transmitting end uses a continuous TTI for data transmission.

The processor is further configured to read a program in the memory and perform the following process:

When the target information in the SA is preset information and/or the reserved bit in the SA is a preset value, it is determined that the sending end uses a continuous TTI for data transmission;

The target information is information used to indicate the transmission capability of the transmitting end.

The processor is further configured to read a program in the memory and perform the following process:

If the information in the SA indicates that the time interval between the resources is 1, the received data is blindly detected; wherein the blind detection result includes a first blind detection result and a second blind detection result, the first blind detection The result is a blind detection result when data mapping is performed on the last symbol of the first TTI to the M-1th TTI, and the second blind detection result is the last of the assumption of the first TTI to the M-1th TTI. Blind detection result when a symbol is not mapped;

Performing verification on the first blind detection result and the second blind detection result respectively;

When the verification of the first blind detection result is accurate, determining that the transmitting end uses a continuous TTI for data transmission; and if the verification of the second blind detection result is accurate, determining the location The transmitting end does not utilize continuous TTI for data transmission.

In an eighth aspect, an embodiment of the present disclosure provides a data transmission apparatus, including:

a selection module, configured to select a TTI to be allocated for data transmission; wherein the selected TTI to be allocated is a continuous TTI;

And a sending module, configured to send, according to the selected TTI to be allocated, transmission mode configuration information, where the transmission mode configuration information indicates that data transmission needs to be performed by using a continuous TTI.

Wherein, the selection module is specifically used,

Obtaining the set number of transmissions N, where N is an integer, and N≥2;

In the candidate resource, the idle TTI that satisfies consecutive P transmissions is searched as the TTI to be allocated, where P is an integer and 2≤P≤N; in the process of selecting P, the difference between N and the selected P is preferentially selected. The smallest value.

A ninth aspect, an embodiment of the present disclosure provides a data transmission device, including: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor; the processor is configured to: Read the program in memory and perform the following process:

Selecting a TTI to be allocated for data transmission; wherein the selected TTI to be allocated is a continuous TTI;

Transmitting mode configuration information is sent to the terminal according to the selected TTI to be allocated, and the transmission mode configuration information indicates that data transmission needs to be performed by using a continuous TTI.

The processor is further configured to read a program in the memory and perform the following process:

Obtaining the set number of transmissions N, where N is an integer, and N≥2;

In the candidate resource, the idle TTI that satisfies consecutive P transmissions is searched as the TTI to be allocated, where P is an integer and 2≤P≤N; in the process of selecting P, the difference between N and the selected P is preferentially selected. The smallest value.

Wherein consecutive TTIs have the same or different frequency domain resources; or

Continuous TTIs correspond to the same TB or different TBs.

According to a tenth aspect, an embodiment of the present disclosure provides a computer readable storage medium for storing a program, where the program is executed by a processor to implement steps in the method according to the first aspect; or the program is processed The steps in the method as described in the second aspect are implemented when the device is executed; or the steps in the method as described in the third aspect are implemented when the program is executed by the processor.

The beneficial effects of the above technical solutions of the embodiments of the present disclosure are as follows:

In the embodiment of the present disclosure, in the M consecutive TTIs, the last symbol of the first TTI to the M-1th TTI is data mapped, and the last symbol of the Mth TTI is used as the GP, and M The TTI is continuously transmitted, so that more data can be carried on one symbol, and the data transmission rate is improved.

DRAWINGS

1 is a flowchart of a data transmission method according to an embodiment of the present disclosure;

2 is a flowchart of a data transmission method according to an embodiment of the present disclosure;

3 is a flowchart of a data transmission method according to an embodiment of the present disclosure;

4 is a schematic diagram of simultaneous transmission of two consecutive TTIs in an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of a data transmission apparatus according to an embodiment of the present disclosure; FIG.

FIG. 6 is a structural diagram of a data transmission apparatus according to an embodiment of the present disclosure;

FIG. 7 is a second schematic diagram of a data transmission apparatus according to an embodiment of the present disclosure;

FIG. 8 is a schematic diagram of a data transmission apparatus according to an embodiment of the present disclosure; FIG.

FIG. 9 is a schematic diagram of a data transmission apparatus according to an embodiment of the present disclosure; FIG.

FIG. 10 is a schematic diagram of a data transmission device according to an embodiment of the present disclosure; FIG.

11 is a schematic diagram of a data transmission device according to an embodiment of the present disclosure;

FIG. 12 is a schematic diagram of a data transmission device according to an embodiment of the present disclosure.

Detailed ways

Specific embodiments of the present disclosure will be further described in detail below with reference to the drawings and embodiments. The following examples are intended to illustrate the disclosure, but are not intended to limit the scope of the disclosure.

In the R14 V2X PSCCH (Physical Sidelink Shared Channel)/PSSCH frame structure, the last symbol of the subframe is used as the GP.

As shown in FIG. 1, the data transmission method of the embodiment of the present disclosure is applied to a V2X terminal as a transmitting end, and includes steps 101 to 102.

Step 101: Obtain transmission mode configuration information.

In the embodiment of the present disclosure, the transmitting end may acquire the transmission mode configuration information sent by the network side device, or obtain the transmission mode configuration information configured by the system.

The transmission mode configuration information may indicate which TTIs can be continuously transmitted, which service types, which PPPPs (ProSe Per-Packet Priority), or which QoS (Quality of Service) The data can be transmitted using a continuous TTI (Transmission Time Interval).

Step 102: When the transmission mode configuration information indicates that data transmission is to be performed by using a continuous transmission time interval TTI, the M to be transmitted is transmitted to the receiving end by using M consecutive TTIs on the same carrier.

Wherein, in the M consecutive TTIs, the last symbol of the first TTI to the M-1th TTI is data-mapped, and the last symbol of the Mth TTI is used as GP, M is an integer and M≥2.

In the embodiment of the present disclosure, “requires continuous transmission time interval TTI for data transmission” may have two meanings: first, the transmitting end must perform data transmission according to the transmission mode configuration information; second, the transmitting end Data transmission can be performed according to the transmission configuration information.

If it is the first meaning above, that is, in the case where the transmission mode configuration information indicates that the target service class or the target PPPP or the target quality of service QoS must use the continuous TTI for data transmission, for the target service class or the target PPPP or The data to be transmitted of the target QoS, the transmitting end transmits the data to be transmitted by using M consecutive TTIs on the same carrier. And/or, in the case that the transmission mode configuration information indicates that the target resource pool must use the continuous TTI for data transmission, when using the target resource pool for data transmission, the transmitting end uses M consecutive on the same carrier. The TTI sends the data to be transmitted.

Among them, the target service category, the target PPPP, or the target QoS can be arbitrarily set.

If the second meaning is the above, the sender also needs to indicate to the receiving end whether it has sent according to the transmission configuration information. At this time, the transmitting end may send the transmission mode indication information to the receiving end, where the transmission mode indication information is used to indicate the target service class or the target PPPP or the target quality of service QoS or whether the target resource pool uses the continuous TTI for data transmission. .

Specifically, the sending end may use the target information in the SA (Scheduling Assignment) to send the transmission mode indication information to the receiving end; and/or use the reserved bit in the SA to send the transmission mode indication information to the receiving end; The target information is information for indicating the transmission capability of the V2X terminal as the transmitting end.

For example, if the reserved bit is 1, it means that the transmitting end performs data transmission according to the transmission mode configuration information; otherwise, it indicates that the transmitting end does not perform data transmission according to the transmission mode configuration information.

In the embodiment of the present disclosure, in the M consecutive TTIs, the last symbol of the first TTI to the M-1th TTI is data mapped, and the last symbol of the Mth TTI is used as the GP, and M The TTI is continuously transmitted, so that more data can be carried on one symbol, and the data transmission rate is improved.

Based on the above embodiment, before or after step 101, the transmitting end may also select consecutive M TTIs for data transmission. Specifically, the sending end acquires the set number of transmissions N, where N is an integer, and N≥2; in the candidate resources, searching for an idle TTI that satisfies consecutive M times of transmission, and using the idle TTI that satisfies M times as data for Continuous M TTIs transmitted;

Wherein M<N; wherein the M consecutive TTIs have the same or different frequency domain resources; or for the same V2X terminal, the M consecutive TTIs correspond to the same TB (transport block) or Different TB.

For example, if the number of transmissions N is 3, then, among the candidate resources, when selecting a resource from the candidate resource set that satisfies the delay requirement, first, it is searched whether the idle resource that can be continuously transmitted 3 times, if any, is satisfied. The idle resource set is randomly selected; if there is no idle resource that satisfies 3 consecutive transmissions, the idle resource that is sent twice consecutively is selected.

In the foregoing embodiment, if the transmitting end does not select the resource itself but uses the resource allocated by the network side device, the resource allocated by the network side device finds the same, and the M consecutive TTIs have the same or different frequency domain resources. Or for the same V2X terminal, the M consecutive TTIs correspond to the same transport block TB or different TBs; or for the same TB of the same V2X terminal, the continuous TTI is preferentially used for data transmission.

As shown in FIG. 2, the data transmission method of the embodiment of the present disclosure is applied to a V2X terminal as a receiving end, and includes steps 201 to 203.

Step 201: Receive data sent by the sending end.

Step 202: Determine whether the transmitting end utilizes a continuous TTI for data transmission.

Specifically, in this step, obtaining the transmission mode configuration information sent by the network side device, or acquiring the transmission mode configuration information configured by the system, or acquiring the transmission mode indication information sent by the sending end; Or the transmission mode indication information indicates that the transmitting end uses a continuous TTI for data transmission, and determines that the transmitting end uses a continuous TTI for data transmission.

In the case that the transmission mode configuration information indicates that the transmitting end uses a continuous TTI for data transmission, the receiving end determines that the transmission mode configuration information indicates a target service or a target service class or a target PPPP or a target quality of service QoS. In the case of data transmission using continuous TTI, it is determined that the transmitting end utilizes continuous TTI for data transmission; and/or in the case where it is determined that the transmission mode configuration information indicates that the target resource pool needs to use a continuous TTI for data transmission. Next, it is determined that the transmitting end utilizes a continuous TTI for data transmission.

When the transmission mode indication information indicates that the transmitting end uses a continuous TTI for data transmission, when the target information in the SA is preset information and/or the reserved bit in the SA is a preset value, determining The transmitting end utilizes a continuous TTI for data transmission; wherein the target information is information indicating a transmission capability of the transmitting end. The preset value is a value pre-agreed by the terminal and the network side device.

Alternatively, in the case that the transmitting end does not perform any indication, the receiving end may perform blind detection on the received data when the information in the SA indicates that the time interval between the resources is 1, wherein the blind detection result includes the first a blind detection result and a second blind detection result, wherein the first blind detection result is a blind detection result when data mapping is performed on the last symbol of the first TTI to the M-1th TTI, the second blindness The result of the check is a blind check result when the last symbol of the first TTI to the M-1th TTI is not subjected to data mapping. Then, the first blind detection result and the second blind detection result are respectively verified. When the verification of the first blind detection result is accurate, determining that the transmitting end uses a continuous TTI for data transmission; and if the verification of the second blind detection result is accurate, determining the location The transmitting end does not utilize continuous TTI for data transmission.

Step 203: If it is determined that the transmitting end uses a continuous TTI for data transmission, perform data combining processing on the data that is transmitted by the M consecutive TTIs on the same carrier in the data.

Wherein, in the M consecutive TTIs, the last symbol of the first TTI to the M-1th TTI is data-mapped, and the last symbol of the Mth TTI is used as GP, M is an integer and M≥2.

In the embodiment of the present disclosure, in the M consecutive TTIs, the last symbol of the first TTI to the M-1th TTI is data mapped, and the last symbol of the Mth TTI is used as the GP, and M The TTI is continuously transmitted, so that more data can be carried on one symbol, and the data transmission rate is improved.

As shown in FIG. 3, the data transmission method of the embodiment of the present disclosure is applied to a network side device, and includes steps 301 to 302.

Step 301: Select a TTI to be allocated for data transmission, where the selected TTI to be allocated is a continuous TTI.

In this step, the network side device acquires the set number of transmissions N, where N is an integer, and N≥2. Then, among the candidate resources, the idle TTI that satisfies consecutive P transmissions is searched as the TTI to be allocated, where P is an integer and 2≤P≤N; in the process of selecting P, the preference is made to make N and the selected P The smallest difference.

Wherein consecutive TTIs have the same or different frequency domain resources; or consecutive TTIs correspond to the same TB or different TBs.

Step 302: Send transmission mode configuration information to the terminal according to the selected TTI to be allocated, where the transmission mode configuration information indicates that data transmission needs to be performed by using a continuous TTI.

In the embodiment of the present disclosure, in the M consecutive TTIs, the last symbol of the first TTI to the M-1th TTI is data mapped, and the last symbol of the Mth TTI is used as the GP, and M The TTI is continuously transmitted, so that more data can be carried on one symbol, and the data transmission rate is improved.

In the R14 V2X PSCCH (Physical Sidelink Shared Channel)/PSSCH frame structure in the related art, the last symbol of the subframe is used as a GP, and no data mapping is performed. Considering that the system bandwidth under R16 NR may be large, more data can be carried on one symbol, and NR has higher requirements on data rate, so a more efficient transmission mode can be considered.

Therefore, in the disclosed embodiment, consecutive M (M is an integer and M≥2) TTIs are simultaneously transmitted on the same carrier. In M consecutive TTIs, the last symbol of the 1st TTI to the M-1th TTI is data mapped, and the last symbol of the Mth TTI is used as the GP. FIG. 4 shows a schematic diagram of simultaneous transmission of two TTIs simultaneously. When multiple TTIs are continuously transmitted simultaneously, if the TTI is continuously transmitted, the time domain gap of the two resources is 1.

In practical applications, in a plurality of consecutive TTIs, the frequency domain resources on each TTI are not limited, and may be the same frequency domain resource or different frequency domain resources. In a plurality of consecutive TTIs, the transmission attributes of each TTI are also unrestricted. For the same V2X terminal, the same TB or different TBs may be used; either the first transmission or the retransmission may be First pass and retransmission. For the same TB of the same V2X terminal, priority is given to ensuring that all transmissions are continuous. If it is not guaranteed that all the transmissions are continuous, then it is also possible that the partial transmission is continuous; in short, the principle is to ensure that the transmission is continuous as many times as possible.

In addition, in practical applications, in the centralized scheduling mode, it is possible to ensure that there is no collision, and the continuous transmission mode of the embodiment of the present disclosure can be selected as much as possible to increase the data rate. In the distributed mode, in order to avoid simultaneous collisions, a certain randomness is ensured as much as possible, that is, the continuous transmission mode of the embodiment of the present disclosure needs to be considered on the basis of a certain randomness.

In the related art, at present, R14 itself has gap=1, that is, for different transmissions of the same TB, the resource continuous transmission necessarily has gap=1, but in the case of gap=1, it is not necessarily continuously transmitted. Therefore, the transmitting end can indicate to the receiving end whether it utilizes a continuous TTI for data transmission. The indication method of the transmitting end and the receiving method of the receiving end can be summarized as follows.

Method 1: The sender implicitly indicates:

The sender is distinguished from the perspective of the SA user. In the related art, the information contained in the SA (Scheduling Assignment) is mainly as follows:

Priority (8 types): 3 bits.

Resource reservation period index value: 4 bits, used to indicate the reservation period of the resource, and the resource indicated by the current SA will continue to be used in the next reservation period. The correspondence between the resource reservation period index value and the resource reservation period is configured by the high layer signaling.

The frequency domain resource location (starting point/length) occupied by the retransmission: <=8 bits, used to indicate the frequency resource occupied by the initial transmission and retransmission data indicated by the current SA.

The interval of the initial transmission/retransmission: 4 bits. When there is only one transmission, the current bit information bits are all set to 0.

Modulation and coding: 5 bits. Retransmission indication: 1 bit, indicating whether the data associated with the current SA is initial transmission or retransmission.

Reserved / padding bits: The information contained in >= 7 bits is mainly as follows:

In the embodiment of the present disclosure, the transmitting end may use the information indicating the transmission capability of the transmitting end in the SA to indicate whether the continuous transmission mode is adopted. If the information indicating the transmission capability of the transmitting end is the agreed value, then the transmitting end of the manual can adopt the method of continuous transmission. At this time, if the receiving end can determine that the transmitting end is a non-R14 user by using a transmission mode or the like, for example, using 64QAM (Quadrature Amplitude Modulation), using TxD, etc., the receiving end can consider that the V2X terminal adopts The way to send continuously.

Mode 2: The sending end does not indicate whether it adopts the continuous sending mode.

That is to say, in this case, the transmitting end does not indicate whether it adopts the continuous transmission mode, but the receiving end determines whether the transmitting end adopts the continuous transmission mode.

For the TB with gap=1, the V2X terminal performs two reception and merge processing according to whether the GP maps data. When the receiving end determines gap=1, it cannot determine whether the GP has done data mapping. Therefore, the receiving end performs blind detection processing. This time is equivalent to one TB corresponding to two HARQ (Hybrid Automatic Repeat reQuest) receiving processes, one receiving end thinks that there is no data mapping, and one receiving end thinks that data mapping is done. Then, for the result of the two blind detections, the receiving end confirms which transmission mode is specifically adopted by the transmitting end by using a CRC (Cyclic Redundancy Check) check. If the result of the GP mapping is not correct, then it can be determined that the GP has not done data mapping; if the result of the GP mapping is correct, then it can be determined that the GP has done data mapping.

Manner 3: Bind with the service, or with the service type (target ID), or with the PPPP, or with the QoS (Quality of Service) category.

That is, for a certain service, a certain service type, a certain PPPP, a certain QoS, through the network side indication or system configuration, the sender must or can use continuous TTI to transmit its corresponding data.

In this case, if the network side indicates or the system configuration sender must use continuous TTI to transmit its corresponding data, then the sender only needs to use continuous TTI for data transmission according to the indication or system configuration information. That is, in this case, the transmitting end and the receiving end have reached an agreement according to the network side indication or the configuration of the system. For the receiving end, the data transmitted on the continuous TTI may be merged according to the network side indication or the system configuration information.

If the network side indicates or the system configuration sender can use continuous TTI to transmit its corresponding data, then it may occur: (1) the transmitting end uses the continuous TTI to transmit its corresponding data according to the network side indication or the system configuration; The transmitting end does not transmit its corresponding data by using a continuous TTI according to the network side indication or the system configuration. For the first case, the processing manner is different from the above “network side indication or system configuration sender must use continuous TTI to transmit its corresponding data”. In the first case, if the transmitting end does not use the continuous TTI for transmission according to the network side indication or the system configuration, the transmitting end needs to further indicate to the receiving end that it adopts continuous TTI transmission. At this time, the receiving end merges the data transmitted on the continuous TTI according to the further indication sent.

Method 4: Distinguish from the perspective of resource pool.

In a specific application, different resource pools may adopt different transmission mechanisms. Some resource pools allow TTIs to be continuously transmitted. Some resource pools do not allow TTIs to be continuously sent. Then, whether a TTI is continuously transmitted for a certain resource pool may be determined by a pre-configuration or a SIB (System Information Block) 21 or a fixed configuration of the system. For example, if the sender and the R14 user share the resource pool, continuous transmission is not considered; if the resource pool is not shared with the R14 user, continuous transmission may be considered. In this manner, the receiving end can determine whether data mapping is performed in the case of gap=1 according to the corresponding receiving resource pool.

Method 5: Display the indication.

In this mode, the sender uses the reserved bit indication in the SA. For example, if the reserved bit is 1, the receiving end can consider that the transmitting end uses a continuous TTI for transmission, otherwise it can be considered that the continuous TTI is not used for transmission. The continuous transmission here can be the same TB or different TB resources.

Of course, the above is just a few examples of possible indications, and in practical applications, it is not limited by the above manner.

Hereinafter, the resource allocation manner in the embodiment of the present disclosure will be described in combination with different application scenarios.

Application scenario 1: Centralized allocation & same TB initial transmission\retransmission.

In the centralized allocation mode of the base station, whether the V2X vehicle is a unicast, multicast, or broadcast service, when allocating resources for a certain TB, a continuous TTI may be considered for the initial transmission and retransmission of the TB.

Considering the existence of zoning and non-logical sub-frames, and the existence of some reserved resources under SPS (Semi-Persistent Scheduling) resource allocation, sometimes there is no guarantee that the initial transmission and all retransmissions are continuous. However, such resources can be allocated as much as possible.

For example, in practical applications, it is guaranteed that all or part of the transmission is in a continuous TTI. For example, the following distribution methods can be guaranteed: (1) initial transmission + retransmission + xxxxx + retransmission; (2) initial transmission + retransmission; (3) initial transmission + retransmission + retransmission; (4) initial transmission + xxxxx + heavy Pass + retransmit. In the first and second modes, the initial transmission and the first retransmission are continuously transmitted; in the third mode, the initial transmission and all the retransmissions are continuously transmitted; in the fourth mode, the two retransmissions are consecutively transmitted. Here, xxxxx represents that the middle is not allocated to the TTI resource for transmitting the TB; from the perspective of the frequency domain, the same frequency domain resource may be a different frequency domain resource.

The DCI (Downlink Control Information) of the resource allocated by the base station to the V2X terminal indicates the corresponding resource. The PC5 V2X terminal only needs to indicate these resources. When the gap=1, the GP maps the data. It is related to the specific indication method. For example, if it is related to the business, gap=1 has done data mapping.

The centralized allocation of base stations here can also be equivalently replaced by the first car in the fleet to allocate resources to the members of the fleet.

Application scenario 2: Centralized allocation & different TB.

In the centralized allocation mode of the base station, whether the V2X vehicle is unicast, multicast, or broadcast, the base station allocation cannot meet the BSR (Buffer Status Report) reporting the transmission requirement of a logical channel buffer; or cannot be reused in the same In the case of a MAC (Media Access Control) PDU (Protocol Data Unit), such as different target IDs or service size restrictions, or different resource trigger conditions, these services cannot be reused. In the case of different TBs, it may be considered to allocate on different time slot resources, for example, continuous time slot resources may be considered, that is, consecutive TTI transmissions are allocated for different TBs.

Assume 2 TBs, and allocate initial resources for 2 TBs: initial transmission 1 + initial transmission 2.

Considering retransmission, similarly, similar application scenario 1, considering the existence of zoning and non-logical subframes, and the existence of some reserved resources under SPS resource allocation, sometimes there is no guarantee that the initial transmission and all retransmissions are continuous, but , such resources can be allocated as much as possible.

Application scenario 3: Distributed & different TBs for the same carrier.

When the vehicle needs to select two resources, for example, it cannot be multiplexed in the same MAC PDU (such as different target ID or service size limit, or different resource trigger conditions). At this time, it may be selected at the same time, or it may be a non-same time selection, but there is still a grant that is still available in the future.

For example, there is service 1 in the current cache, and the corresponding resource is the 5th TTI of the initial transmission resource, and the 10th TTI of the retransmission resource (this restriction binding is not performed on the initial transmission and retransmission of the same TB, and the related technology implements this method. , gap=1, non-active selection, less probability); assuming that a new service is coming, the resource selection needs to be triggered. Here, the priority selection process can be added on the basis of ensuring randomness.

For example, try to ensure that one of the resources and one of the previous resources can be sent continuously. For example, if you select 2 resources, you can choose 4TTI, 6TTI, 9TTI, 11TTI, and another option according to the existing implementation. Guarantee randomness.

Application scenario 4: The perspective of resource selection.

Whether it is centralized allocation & the same TB initial transmission / retransmission, or centralized allocation & different TB, from the perspective of selecting resources, when selecting resources from the candidate resource set, select the priority initial transmission and retransmission resources as continuous as possible. Resources.

For example, when the number of transmissions is determined to be 3, when the base station allocates resources, when selecting a resource from the candidate resource set that satisfies the delay requirement, first, it is searched whether it can satisfy three consecutive idle resources, and if any, the satisfied idle resources. Random selection in the set; if there are no idle resources satisfying 3 consecutive transmissions, the idle resources sent consecutively are selected twice. Specifically, it may be that the first transmission and the first retransmission are continuous, or two retransmissions may be consecutive.

As shown in FIG. 5, the data transmission apparatus of the embodiment of the present disclosure includes:

The obtaining module 501 is configured to obtain transmission mode configuration information, where the transmission module 502 is configured to use M consecutive uplinks on the same carrier when the transmission mode configuration information indicates that data transmission is to be performed by using a continuous transmission time interval TTI. The TTI sends the data to be transmitted to the receiving end; wherein, among the M consecutive TTIs, the last symbol of the first TTI to the M-1th TTI is data-mapped, and the last symbol of the Mth TTI is used as the GP. , M is an integer and M ≥ 2.

The obtaining module 501 is specifically configured to acquire transmission mode configuration information sent by the network side device, or obtain transmission mode configuration information configured by the system.

The transmission module 502 is specifically configured to:

In the case that the transmission mode configuration information indicates that the target traffic class or the target PPPP or the target quality of service QoS must use the continuous TTI for data transmission, the data to be transmitted for the target traffic class or the target PPPP or the target quality of service QoS is the same Transmitting data to be transmitted using M consecutive TTIs on the carrier; and/or when the transmission mode configuration information indicates that the target resource pool must use a continuous TTI for data transmission, when data transmission is performed by using the target resource pool Transmitting data to be transmitted using M consecutive TTIs on the same carrier.

The apparatus may further include: a sending module 503, configured to send transmission mode indication information to the receiving end, where the transmission mode indication information is used to indicate a target service class or a target PPPP or a target quality of service QoS. Or whether the data is transmitted in the target resource pool using continuous TTI. Specifically, the sending module 503 sends the transmission mode indication information to the receiving end by using the target information in the SA; and/or sends the transmission mode indication information to the receiving end by using the reserved bit in the SA; wherein the target information is used to indicate Information about the transmission capability of the V2X terminal at the transmitting end.

If the resources are allocated by the network side device, the M consecutive TTIs have the same or different frequency domain resources among the resources allocated by the network side device; or the M consecutive TTIs correspond to the same for the same V2X terminal. Transport block TB or a different TB; or for the same TB of the same V2X terminal, the continuous TTI is used for data transmission.

Wherein, as shown in FIG. 7, the apparatus may further include: a selecting module 504, configured to select consecutive M TTIs for data transmission. Specifically, the selecting module 504 is configured to: obtain the set number of transmissions N, where N is an integer, and N≥2; in the candidate resources, find an idle TTI that satisfies consecutive M times of transmission, and satisfy the idleness of M times of transmission. TTI as a continuous M TTI for data transmission; wherein M<N; wherein the M consecutive TTIs have the same or different frequency domain resources; or for the same V2X terminal, the M consecutive TTIs Corresponds to the same transport block TB or a different TB.

The working principle of the device of the present disclosure can be referred to the description of the foregoing method embodiments.

In the embodiment of the present disclosure, in the M consecutive TTIs, the last symbol of the first TTI to the M-1th TTI is data mapped, and the last symbol of the Mth TTI is used as the GP, and M The TTI is continuously transmitted, so that more data can be carried on one symbol, and the data transmission rate is improved.

As shown in FIG. 8, the data transmission apparatus of the embodiment of the present disclosure includes:

The receiving module 801 is configured to receive data sent by the sending end, and the determining module 802 is configured to determine whether the sending end uses a continuous TTI for data transmission, and the processing module 803 is configured to: if it is determined that the sending end uses continuous The data transmission is performed by the TTI, and the data transmitted by the M consecutive TTIs on the same carrier in the data is combined; wherein, among the M consecutive TTIs, the first TTI to the Mth - The last symbol of 1 TTI is data mapped, the last symbol of the Mth TTI is used as GP, M is an integer and M ≥ 2.

The determining module 802 includes: an obtaining submodule, configured to acquire transmission mode configuration information sent by the network side device, or obtain transmission mode configuration information configured by the system, or obtain transmission mode indication information sent by the sending end; Determining, by the determining, the submodule, in the case that the transmission mode configuration information or the transmission mode indication information indicates that the transmitting end uses a continuous TTI for data transmission, determining that the transmitting end uses a continuous TTI for data transmission. .

The determining sub-module is specifically configured to: when the transmission mode configuration information indicates that the transmitting end uses a continuous TTI for data transmission, where the transmission mode configuration information indicates a target service or a target service class or a target PPPP Or the target quality of service QoS needs to use continuous TTI for data transmission, determining that the transmitting end utilizes continuous TTI for data transmission; and/or that the transmission mode configuration information indicates that the target resource pool needs to utilize continuous TTI In the case of data transmission, it is determined that the transmitting end utilizes a continuous TTI for data transmission.

The determining sub-module is specifically configured to: when the transmitting mode indication information indicates that the sending end uses a continuous TTI for data transmission, when the target information in the SA is preset information and/or the pre-in the SA The reserved bit is a preset value, and it is determined that the transmitting end uses a continuous TTI for data transmission; wherein the target information is information used to indicate the transmission capability of the transmitting end.

The determining module 802 includes:

a detecting submodule, configured to perform blind detection on the received data when the information in the SA indicates that the time interval between the resources is 1, wherein the blind detection result includes a first blind detection result and a second blind detection result, The first blind detection result is a blind detection result when data mapping is performed on the last symbol of the first TTI to the M-1th TTI, and the second blind detection result is assumed to be the first TTI to the Mth. - a blind detection result when data mapping is not performed on the last symbol of the TTI; a verification submodule for respectively verifying the first blind detection result and the second blind detection result; determining a submodule for When the verification of the first blind detection result is accurate, determining that the transmitting end uses a continuous TTI for data transmission; and if the verification of the second blind detection result is accurate, determining the location The transmitting end does not utilize continuous TTI for data transmission.

The working principle of the device of the present disclosure can be referred to the description of the foregoing method embodiments.

In the embodiment of the present disclosure, in the M consecutive TTIs, the last symbol of the first TTI to the M-1th TTI is data mapped, and the last symbol of the Mth TTI is used as the GP, and M The TTI is continuously transmitted, so that more data can be carried on one symbol, and the data transmission rate is improved.

As shown in FIG. 9, the data transmission apparatus of the embodiment of the present disclosure includes:

The selecting module 901 is configured to select a TTI to be allocated for data transmission, where the selected TTI to be allocated is a continuous TTI, and the sending module 902 is configured to send, according to the selected TTI to be allocated, transmission mode configuration information to the terminal. The transmission mode configuration information indicates that a continuous TTI is required for data transmission.

The selection module 901 is specifically configured to: obtain a set number of transmissions N, where N is an integer, and N ≥ 2; in the candidate resources, search for an idle TTI that satisfies consecutive P transmissions as a to-be-assigned TTI, where P It is an integer, and 2 ≤ P ≤ N; in the process of selecting P, a value that minimizes the difference between N and the selected P is preferentially selected.

Wherein consecutive TTIs have the same or different frequency domain resources; or consecutive TTIs correspond to the same TB or different TBs.

The working principle of the device of the present disclosure can be referred to the description of the foregoing method embodiments.

In the embodiment of the present disclosure, in the M consecutive TTIs, the last symbol of the first TTI to the M-1th TTI is data mapped, and the last symbol of the Mth TTI is used as the GP, and M The TTI is continuously transmitted, so that more data can be carried on one symbol, and the data transmission rate is improved.

As shown in FIG. 10, the data transmission device of the embodiment of the present disclosure includes:

The processor 1000 is configured to read a program in the memory 1020, and perform the following process: selecting a TTI to be allocated for data transmission; wherein the selected TTI to be allocated is a continuous TTI; according to the selected TTI to be allocated, through the transceiver 1010 sends transmission mode configuration information to the terminal, where the transmission mode configuration information indicates that data transmission needs to be performed by using a continuous TTI.

The transceiver 1010 is configured to receive and transmit data under the control of the processor 1000.

In FIG. 10, the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 1000 and various circuits of memory represented by memory 1020. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. The transceiver 1010 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium. The processor 1000 is responsible for managing the bus architecture and general processing, and the memory 1020 can store data used by the processor 1000 in performing operations.

The processor 1000 is responsible for managing the bus architecture and general processing, and the memory 1020 can store data used by the processor 1000 in performing operations.

The processor 1000 is further configured to read the computer program, and perform the following steps:

Obtaining the set number of transmissions N, where N is an integer, and N≥2;

Among the candidate resources, the idle TTI that satisfies consecutive P transmissions is searched as the TTI to be allocated, where P is an integer and 2≤P≤N; in the process of selecting P, the difference between N and the selected P is preferentially selected. The smallest value.

Wherein consecutive TTIs have the same or different frequency domain resources; or consecutive TTIs correspond to the same TB or different TBs.

As shown in FIG. 11, the data transmission device of the embodiment of the present disclosure includes:

The processor 1100 is configured to read a program in the memory 1120 and perform the following process:

Obtaining transmission mode configuration information; in the case that the transmission mode configuration information indicates that data transmission is to be performed by using a continuous transmission time interval TTI, the transceiver 1110 transmits the data to be transmitted to the receiving end by using M consecutive TTIs on the same carrier. Wherein, in the M consecutive TTIs, the last symbol of the 1st TTI to the M-1th TTI is data mapped, the last symbol of the Mth TTI is used as GP, M is an integer and M≥2 . The transceiver 1110 is configured to receive and transmit data under the control of the processor 1100.

The transceiver 1110 is configured to receive and transmit data under the control of the processor 1100.

Wherein, in FIG. 11, the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 1100 and various circuits of memory represented by memory 1120. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. The transceiver 1110 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium. For different user equipments, the user interface 1130 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

The processor 1100 is responsible for managing the bus architecture and general processing, and the memory 1120 can store data used by the processor 1100 in performing operations.

The processor 1100 is further configured to read the computer program, and perform the following steps:

Obtain the transmission mode configuration information sent by the network side device; or obtain the transmission mode configuration information configured by the system.

The processor 1100 is further configured to read the computer program, and perform the following steps:

In the case that the transmission mode configuration information indicates that the target traffic class or the target PPPP or the target quality of service QoS must use the continuous TTI for data transmission, the data to be transmitted for the target traffic class or the target PPPP or the target quality of service QoS is the same Transmitting data to be transmitted using M consecutive TTIs on the carrier; and/or when the transmission mode configuration information indicates that the target resource pool must use a continuous TTI for data transmission, when data transmission is performed by using the target resource pool Transmitting data to be transmitted using M consecutive TTIs on the same carrier.

The processor 1100 is further configured to read the computer program, and perform the following steps:

Sending transmission mode indication information to the receiving end;

The transmission mode indication information is used to indicate a target traffic class or a target PPPP or a target quality of service QoS or whether data transmission is performed using a continuous TTI in the target resource pool.

The processor 1100 is further configured to read the computer program, and perform the following steps:

Transmitting the transmission mode indication information to the receiving end by using the target information in the scheduling allocation SA; and/or

Transmitting the transmission mode indication information to the receiving end by using the reserved bit in the SA;

The target information is information for indicating the transmission capability of the V2X terminal as the transmitting end.

The processor 1100 is further configured to read the computer program, and perform the following steps:

Select consecutive M TTIs for data transmission.

The processor 1100 is further configured to read the computer program, and perform the following steps:

Obtaining the set number of transmissions N, where N is an integer, and N≥2;

In the candidate resources, searching for an idle TTI that satisfies consecutive M transmissions, and using an idle TTI that satisfies M transmissions as consecutive M TTIs for data transmission;

Where M<N;

The M consecutive TTIs have the same or different frequency domain resources; or for the same V2X terminal, the M consecutive TTIs correspond to the same transport block TB or different TBs.

Wherein the M consecutive TTIs have the same or different frequency domain resources; or

For the same V2X terminal, the M consecutive TTIs correspond to the same transport block TB or different TBs; or

For the same TB of the same V2X terminal, the continuous TTI is preferentially used for data transmission.

As shown in FIG. 12, the data transmission device of the embodiment of the present disclosure includes:

The processor 1200 is configured to read a program in the memory 1220 and perform the following process:

Receiving, by the transceiver 1210, the data sent by the sending end; determining whether the transmitting end uses the continuous TTI for data transmission; if it is determined that the transmitting end uses the continuous TTI for data transmission, The transmitting end performs data combining on the same carrier by using M consecutive TTI data transmissions. Among the M consecutive TTIs, the last symbol of the first TTI to the M-1th TTI is data mapped. The last symbol of the M TTIs is used as GP, M is an integer and M ≥ 2.

The transceiver 1210 is configured to receive and transmit data under the control of the processor 1200.

In FIG. 12, the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 1200 and various circuits of memory represented by memory 1220. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. Transceiver 1210 may be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium. For different user equipments, the user interface 1230 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

The processor 1200 is responsible for managing the bus architecture and general processing, and the memory 1220 can store data used by the processor 1200 in performing operations.

The processor 1200 is further configured to read the computer program, and perform the following steps:

Obtaining the transmission mode configuration information sent by the network side device, or obtaining the transmission mode configuration information configured by the system, or acquiring the transmission mode indication information sent by the sending end;

When the transmission mode configuration information or the transmission mode indication information indicates that the transmitting end uses a continuous TTI for data transmission, it is determined that the transmitting end uses a continuous TTI for data transmission.

The processor 1200 is further configured to read the computer program, and perform the following steps:

In the case that the transmission mode configuration information indicates that the target service or the target service class or the target PPPP or the target quality of service QoS needs to use the continuous TTI for data transmission, it is determined that the transmitting end uses the continuous TTI for data transmission; and / or

In the case that the transmission mode configuration information indicates that the target resource pool needs to use a continuous TTI for data transmission, it is determined that the transmitting end uses a continuous TTI for data transmission.

The processor 1200 is further configured to read the computer program, and perform the following steps:

When the target information in the SA is preset information and/or the reserved bit in the SA is a preset value, it is determined that the sending end uses a continuous TTI for data transmission;

The target information is information used to indicate the transmission capability of the transmitting end.

The processor 1200 is further configured to read the computer program, and perform the following steps:

If the information in the SA indicates that the time interval between the resources is 1, the received data is blindly detected; wherein the blind detection result includes a first blind detection result and a second blind detection result, the first blind detection The result is a blind detection result when data mapping is performed on the last symbol of the first TTI to the M-1th TTI, and the second blind detection result is the last of the assumption of the first TTI to the M-1th TTI. Blind detection result when a symbol is not mapped;

Performing verification on the first blind detection result and the second blind detection result respectively;

When the verification of the first blind detection result is accurate, determining that the transmitting end uses a continuous TTI for data transmission; and if the verification of the second blind detection result is accurate, determining the location The transmitting end does not utilize continuous TTI for data transmission.

Furthermore, a computer readable storage medium of an embodiment of the present disclosure is configured to store a computer program executable by a processor to implement the following steps:

Obtain transmission mode configuration information;

When the transmission mode configuration information indicates that the data transmission needs to be performed by using the continuous transmission time interval TTI, the M consecutive TTIs are used to transmit the data to be transmitted to the receiving end on the same carrier;

Wherein, in the M consecutive TTIs, the last symbol of the first TTI to the M-1th TTI is data-mapped, and the last symbol of the Mth TTI is used as GP, M is an integer and M≥2.

The obtaining the transmission mode configuration information includes:

Obtain the transmission mode configuration information sent by the network side device; or

Obtain the transmission mode configuration information of the system configuration.

The sending the data to be transmitted to the receiving end by using the M consecutive TTIs on the same carrier, including:

And in the case that the transmission mode configuration information indicates that the target service class or the target direct communication packet priority PPPP or the target quality of service QoS must use the continuous TTI for data transmission, for the target service class or the target PPPP or the target quality of service QoS Data to be transmitted, using M consecutive TTIs to transmit data to be transmitted on the same carrier; and/or

In the case that the transmission mode configuration information indicates that the target resource pool must use the continuous TTI for data transmission, when data transmission is performed by using the target resource pool, the data to be transmitted is transmitted by using M consecutive TTIs on the same carrier.

In the case that the transmission mode configuration information indicates that the target service class or the target PPPP or the target quality of service QoS can be transmitted by using a continuous TTI, the method further includes:

Sending transmission mode indication information to the receiving end;

The transmission mode indication information is used to indicate a target traffic class or a target PPPP or a target quality of service QoS or whether data transmission is performed using a continuous TTI in the target resource pool.

The sending the transmission mode indication information to the receiving end includes:

Transmitting the transmission mode indication information to the receiving end by using the target information in the scheduling allocation SA; and/or

Transmitting the transmission mode indication information to the receiving end by using the reserved bit in the SA;

The target information is information for indicating the transmission capability of the V2X terminal as the transmitting end.

The method further includes: before or after the obtaining the transmission mode configuration information, the method further includes:

Select consecutive M TTIs for data transmission.

The selecting the M MTIs for data transmission includes:

Obtaining the set number of transmissions N, where N is an integer, and N≥2;

In the candidate resources, searching for an idle TTI that satisfies consecutive M transmissions, and using an idle TTI that satisfies M transmissions as consecutive M TTIs for data transmission;

Where M<N;

The M consecutive TTIs have the same or different frequency domain resources; or for the same V2X terminal, the M consecutive TTIs correspond to the same transport block TB or different TBs.

Wherein the M consecutive TTIs have the same or different frequency domain resources; or

For the same V2X terminal, the M consecutive TTIs correspond to the same transport block TB or different TBs; or

For the same TB of the same V2X terminal, the continuous TTI is preferentially used for data transmission.

Furthermore, a computer readable storage medium of an embodiment of the present disclosure is configured to store a computer program executable by a processor to implement the following steps:

Receiving data sent by the sender;

Determining whether the transmitting end utilizes a continuous TTI for data transmission;

If it is determined that the transmitting end uses the continuous TTI for data transmission, the data transmitted by the M consecutive TTIs on the same carrier in the data is combined and processed;

Wherein, in the M consecutive TTIs, the last symbol of the first TTI to the M-1th TTI is data-mapped, and the last symbol of the Mth TTI is used as GP, M is an integer and M≥2.

The determining whether the sending end utilizes a continuous TTI for data transmission includes:

Obtaining the transmission mode configuration information sent by the network side device, or obtaining the transmission mode configuration information configured by the system, or acquiring the transmission mode indication information sent by the sending end;

When the transmission mode configuration information or the transmission mode indication information indicates that the transmitting end uses a continuous TTI for data transmission, it is determined that the transmitting end uses a continuous TTI for data transmission.

In the case that the transmission mode configuration information indicates that the transmitting end uses a continuous TTI for data transmission, it is determined that the transmitting end uses a continuous TTI for data transmission, including:

In the case that the transmission mode configuration information indicates that the target service or the target service class or the target PPPP or the target quality of service QoS needs to use the continuous TTI for data transmission, it is determined that the transmitting end uses the continuous TTI for data transmission; and / or

In the case that the transmission mode configuration information indicates that the target resource pool needs to use a continuous TTI for data transmission, it is determined that the transmitting end uses a continuous TTI for data transmission.

When the transmission mode indication information indicates that the transmitting end uses a continuous TTI for data transmission, it is determined that the transmitting end uses a continuous TTI for data transmission, including:

When the target information in the SA is preset information and/or the reserved bit in the SA is a preset value, it is determined that the sending end uses a continuous TTI for data transmission;

The target information is information used to indicate the transmission capability of the transmitting end.

The determining whether the sending end utilizes a continuous TTI for data transmission includes:

If the information in the SA indicates that the time interval between the resources is 1, the received data is blindly detected; wherein the blind detection result includes a first blind detection result and a second blind detection result, the first blind detection The result is a blind detection result when data mapping is performed on the last symbol of the first TTI to the M-1th TTI, and the second blind detection result is the last of the assumption of the first TTI to the M-1th TTI. Blind detection result when a symbol is not mapped;

Performing verification on the first blind detection result and the second blind detection result respectively;

When the verification of the first blind detection result is accurate, determining that the transmitting end uses a continuous TTI for data transmission; and if the verification of the second blind detection result is accurate, determining the location The transmitting end does not utilize continuous TTI for data transmission.

Furthermore, a computer readable storage medium of an embodiment of the present disclosure is configured to store a computer program executable by a processor to implement the following steps:

Selecting a TTI to be allocated for data transmission; wherein the selected TTI to be allocated is a continuous TTI;

Transmitting mode configuration information is sent to the terminal according to the selected TTI to be allocated, and the transmission mode configuration information indicates that data transmission needs to be performed by using a continuous TTI.

The selecting a TTI to be allocated for data transmission includes:

Obtaining the set number of transmissions N, where N is an integer, and N≥2;

In the candidate resource, the idle TTI that satisfies consecutive P transmissions is searched as the TTI to be allocated, where P is an integer and 2≤P≤N; in the process of selecting P, the difference between N and the selected P is preferentially selected. The smallest value.

Wherein consecutive TTIs have the same or different frequency domain resources; or consecutive TTIs correspond to the same TB or different TBs.

In the several embodiments provided by the present disclosure, it should be understood that the disclosed method and apparatus may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

In addition, each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

The above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium. The above software functional units are stored in a storage medium and include a number of instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform some of the steps of the method of transmitting and receiving described in various embodiments of the present disclosure. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, and the program code can be stored. Medium.

The above is an alternative embodiment of the present disclosure, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present disclosure. It should also be considered as the scope of protection of the present disclosure.

Claims (39)

1. A data transmission method is applied to a V2X terminal as a transmitting end, including:

   Obtain transmission mode configuration information;

   When the transmission mode configuration information indicates that the data transmission needs to be performed by using the continuous transmission time interval TTI, the M consecutive TTIs are used to transmit the data to be transmitted to the receiving end on the same carrier;

   Wherein, in the M consecutive TTIs, the last symbol of the first TTI to the M-1th TTI is data-mapped, and the last symbol of the Mth TTI is used as the guard interval GP, M is an integer and M≥ 2.
2. The method of claim 1, wherein the obtaining transmission mode configuration information comprises:

   Obtain the transmission mode configuration information sent by the network side device; or

   Obtain the transmission mode configuration information of the system configuration.
3. The method of claim 1, wherein the transmitting the data to be transmitted to the receiving end by using the M consecutive TTIs on the same carrier comprises:

   And in the case that the transmission mode configuration information indicates that the target service class or the target direct communication packet priority PPPP or the target quality of service QoS must use the continuous TTI for data transmission, for the target service class or the target PPPP or the target quality of service QoS Data to be transmitted, using M consecutive TTIs to transmit data to be transmitted on the same carrier; and/or

   In the case that the transmission mode configuration information indicates that the target resource pool must use the continuous TTI for data transmission, when data transmission is performed by using the target resource pool, the data to be transmitted is transmitted by using M consecutive TTIs on the same carrier.
4. The method according to claim 1 or 3, wherein, in the case that the transmission mode configuration information indicates that the target service class or the target PPPP or the target quality of service QoS can be transmitted by using a continuous TTI, the method further includes:

   Sending transmission mode indication information to the receiving end;

   The transmission mode indication information is used to indicate a target traffic class or a target PPPP or a target quality of service QoS or whether data transmission is performed using a continuous TTI in the target resource pool.
5. The method of claim 4, wherein the transmitting the transmission mode indication information to the receiving end comprises:

   Transmitting the transmission mode indication information to the receiving end by using the target information in the scheduling allocation SA; and/or

   Transmitting the transmission mode indication information to the receiving end by using the reserved bit in the SA;

   The target information is information for indicating the transmission capability of the V2X terminal as the transmitting end.
6. The method according to any one of claims 1 to 3, wherein before or after the obtaining the transmission mode configuration information, the method further comprises:

   Select consecutive M TTIs for data transmission.
7. The method of claim 6 wherein said selecting said consecutive M TTIs for data transmission comprises:

   Obtaining the set number of transmissions N, where N is an integer, and N≥2;

   In the candidate resources, searching for an idle TTI that satisfies consecutive M transmissions, and using an idle TTI that satisfies M transmissions as consecutive M TTIs for data transmission;

   Where M<N;

   The M consecutive TTIs have the same or different frequency domain resources; or for the same V2X terminal, the M consecutive TTIs correspond to the same transport block TB or different TBs.
8. The method of claim 1 wherein

   The M consecutive TTIs have the same or different frequency domain resources; or

   For the same V2X terminal, the M consecutive TTIs correspond to the same transport block TB or different TBs; or

   For the same TB of the same V2X terminal, the continuous TTI is preferentially used for data transmission.
9. A data transmission method applied to a V2X as a receiving end, comprising:

   Receiving data sent by the sender;

   Determining whether the transmitting end utilizes a continuous TTI for data transmission;

   If it is determined that the transmitting end uses the continuous TTI for data transmission, the data transmitted by the M consecutive TTIs on the same carrier in the data is combined and processed;

   Wherein, in the M consecutive TTIs, the last symbol of the first TTI to the M-1th TTI is data-mapped, and the last symbol of the Mth TTI is used as the guard interval GP, M is an integer and M≥ 2.
10. The method according to claim 9, wherein the determining whether the transmitting end utilizes a continuous TTI for data transmission comprises:

    Obtaining the transmission mode configuration information sent by the network side device, or obtaining the transmission mode configuration information configured by the system, or acquiring the transmission mode indication information sent by the sending end;

    When the transmission mode configuration information or the transmission mode indication information indicates that the transmitting end uses a continuous TTI for data transmission, it is determined that the transmitting end uses a continuous TTI for data transmission.
11. The method according to claim 10, wherein, in the case that the transmission mode configuration information indicates that the transmitting end utilizes consecutive TTIs for data transmission, it is determined that the transmitting end utilizes consecutive TTIs for data transmission, including :

    In the case that the transmission mode configuration information indicates that the target service or the target service class or the target PPPP or the target quality of service QoS needs to use the continuous TTI for data transmission, it is determined that the transmitting end uses the continuous TTI for data transmission; and / or

    In the case that the transmission mode configuration information indicates that the target resource pool needs to use a continuous TTI for data transmission, it is determined that the transmitting end uses a continuous TTI for data transmission.
12. The method according to claim 10, wherein, when the transmission mode indication information indicates that the transmitting end utilizes a continuous TTI for data transmission, determining that the transmitting end utilizes consecutive TTIs for data transmission, including:

    When the target information in the SA is preset information and/or the reserved bit in the SA is a preset value, it is determined that the sending end uses a continuous TTI for data transmission;

    The target information is information used to indicate the transmission capability of the transmitting end.
13. The method according to claim 9, wherein the determining whether the transmitting end utilizes a continuous TTI for data transmission comprises:

    If the information in the SA indicates that the time interval between the resources is 1, the received data is blindly detected; wherein the blind detection result includes a first blind detection result and a second blind detection result, the first blind detection The result is a blind detection result when data mapping is performed on the last symbol of the first TTI to the M-1th TTI, and the second blind detection result is the last of the assumption of the first TTI to the M-1th TTI. Blind detection result when a symbol is not mapped;

    Performing verification on the first blind detection result and the second blind detection result respectively;

    When the verification of the first blind detection result is accurate, determining that the transmitting end uses a continuous TTI for data transmission; and if the verification of the second blind detection result is accurate, determining the location The transmitting end does not utilize continuous TTI for data transmission.
14. A data transmission method is applied to a network side device, including:

    Selecting a TTI to be allocated for data transmission; wherein the selected TTI to be allocated is a continuous TTI;

    Transmitting mode configuration information is sent to the terminal according to the selected TTI to be allocated, and the transmission mode configuration information indicates that data transmission needs to be performed by using a continuous TTI.
15. The method of claim 14, wherein said selecting a TTI to be allocated for data transmission comprises:

    Obtaining the set number of transmissions N, where N is an integer, and N≥2;

    In the candidate resource, the idle TTI that satisfies consecutive P transmissions is searched as the TTI to be allocated, where P is an integer and 2≤P≤N; in the process of selecting P, the difference between N and the selected P is preferentially selected. The smallest value.
16. The method of claim 14 wherein

    Continuous TTIs have the same or different frequency domain resources; or

    Continuous TTIs correspond to the same TB or different TBs.
17. A data transmission device comprising:

    The obtaining module is configured to obtain transmission mode configuration information;

    a transmission module, configured to: when the transmission mode configuration information indicates that data transmission is to be performed by using a continuous transmission time interval TTI, send the data to be transmitted to the receiving end by using M consecutive TTIs on the same carrier;

    Wherein, in the M consecutive TTIs, the last symbol of the first TTI to the M-1th TTI is data-mapped, and the last symbol of the Mth TTI is used as the guard interval GP, M is an integer and M≥ 2.
18. The device according to claim 17, wherein the obtaining module is configured to acquire transmission mode configuration information sent by the network side device, or obtain transmission mode configuration information configured by the system.
19. A data transmission device comprising:

    a receiving module, configured to receive data sent by the sending end;

    a determining module, configured to determine whether the transmitting end utilizes a continuous TTI for data transmission;

    a processing module, configured to perform a combining process on the data that is transmitted by the M consecutive TTIs on the same carrier in the data, if the sending end uses the continuous TTI to perform data transmission;

    Wherein, in the M consecutive TTIs, the last symbol of the first TTI to the M-1th TTI is data-mapped, and the last symbol of the Mth TTI is used as the guard interval GP, M is an integer and M≥ 2.
20. The apparatus of claim 19, wherein the determining module comprises:

    Obtaining a sub-module, which is used to obtain the transmission mode configuration information sent by the network side device, or obtain the transmission mode configuration information configured by the system, or obtain the transmission mode indication information sent by the sending end;

    Determining, by the determining, the submodule, in the case that the transmission mode configuration information or the transmission mode indication information indicates that the transmitting end uses a continuous TTI for data transmission, determining that the transmitting end uses a continuous TTI for data transmission. .
21. A data transmission device includes: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor; wherein the processor is configured to read a program in the memory, Perform the following process:

    Obtaining transmission mode configuration information by using the transceiver; in the case that the transmission mode configuration information indicates that data transmission is to be performed by using a continuous transmission time interval TTI, transmitting, by using M consecutive TTIs on the same carrier, to the receiving end data;

    Wherein, in the M consecutive TTIs, the last symbol of the first TTI to the M-1th TTI is data-mapped, and the last symbol of the Mth TTI is used as the guard interval GP, M is an integer and M≥ 2.
22. The apparatus according to claim 21, wherein said processor is further configured to read a program in the memory and perform the following process:

    Obtain the transmission mode configuration information sent by the network side device; or obtain the transmission mode configuration information configured by the system.
23. The apparatus according to claim 21, wherein said processor is further configured to read a program in the memory and perform the following process:

    In the case that the transmission mode configuration information indicates that the target traffic class or the target PPPP or the target quality of service QoS must use the continuous TTI for data transmission, the data to be transmitted for the target traffic class or the target PPPP or the target quality of service QoS is the same Transmitting data to be transmitted using M consecutive TTIs on the carrier; and/or

    In the case that the transmission mode configuration information indicates that the target resource pool must use the continuous TTI for data transmission, when data transmission is performed by using the target resource pool, the data to be transmitted is transmitted by using M consecutive TTIs on the same carrier.
24. The apparatus according to claim 21 or 23, wherein said processor is further configured to read a program in the memory and perform the following process:

    Sending transmission mode indication information to the receiving end;

    The transmission mode indication information is used to indicate a target traffic class or a target PPPP or a target quality of service QoS or whether data transmission is performed using a continuous TTI in the target resource pool.
25. The apparatus according to claim 24, wherein said processor is further configured to read a program in the memory and perform the following process:

    Transmitting the transmission mode indication information to the receiving end by using the target information in the scheduling allocation SA; and/or

    Transmitting the transmission mode indication information to the receiving end by using the reserved bit in the SA;

    The target information is information for indicating the transmission capability of the V2X terminal as the transmitting end.
26. The apparatus according to any one of claims 21 to 23, wherein the processor is further configured to read a program in the memory and perform the following process:

    Select consecutive M TTIs for data transmission.
27. The apparatus according to claim 26, wherein said processor is further configured to read a program in the memory and perform the following process:

    Obtaining the set number of transmissions N, where N is an integer, and N≥2;

    In the candidate resources, searching for an idle TTI that satisfies consecutive M transmissions, and using an idle TTI that satisfies M transmissions as consecutive M TTIs for data transmission;

    Where M<N;

    The M consecutive TTIs have the same or different frequency domain resources; or for the same V2X terminal, the M consecutive TTIs correspond to the same transport block TB or different TBs.
28. The apparatus according to claim 21, wherein

    The M consecutive TTIs have the same or different frequency domain resources; or

    For the same V2X terminal, the M consecutive TTIs correspond to the same transport block TB or different TBs; or

    For the same TB of the same V2X terminal, the continuous TTI is preferentially used for data transmission.
29. A data transmission device includes: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor; wherein the processor is configured to read a program in the memory, Perform the following process:

    Receiving, by the transceiver, data sent by the transmitting end, determining whether the transmitting end uses a continuous TTI for data transmission, and determining that the transmitting end uses a continuous TTI for data transmission, The transmitting end performs data combining on the same carrier by using M consecutive TTI data transmissions; wherein, among the M consecutive TTIs, the last symbol of the first TTI to the M-1th TTI is data-mapped. The last symbol of the Mth TTI is used as the guard interval GP, M is an integer and M ≥ 2.
30. The apparatus according to claim 29, wherein said processor is further configured to read a program in the memory and perform the following process:

    Obtaining the transmission mode configuration information sent by the network side device, or obtaining the transmission mode configuration information configured by the system, or acquiring the transmission mode indication information sent by the sending end;

    When the transmission mode configuration information or the transmission mode indication information indicates that the transmitting end uses a continuous TTI for data transmission, it is determined that the transmitting end uses a continuous TTI for data transmission.
31. The apparatus according to claim 30, wherein said processor is further configured to read a program in the memory and perform the following process:

    In the case that the transmission mode configuration information indicates that the target service or the target service class or the target PPPP or the target quality of service QoS needs to use the continuous TTI for data transmission, it is determined that the transmitting end uses the continuous TTI for data transmission; and / or

    In the case that the transmission mode configuration information indicates that the target resource pool needs to use a continuous TTI for data transmission, it is determined that the transmitting end uses a continuous TTI for data transmission.
32. The apparatus according to claim 30, wherein said processor is further configured to read a program in the memory and perform the following process:

    When the target information in the SA is preset information and/or the reserved bit in the SA is a preset value, it is determined that the sending end uses a continuous TTI for data transmission;

    The target information is information used to indicate the transmission capability of the transmitting end.
33. The apparatus according to claim 31, wherein said processor is further configured to read a program in the memory and perform the following process:

    If the information in the SA indicates that the time interval between the resources is 1, the received data is blindly detected; wherein the blind detection result includes a first blind detection result and a second blind detection result, the first blind detection The result is a blind detection result when data mapping is performed on the last symbol of the first TTI to the M-1th TTI, and the second blind detection result is the last of the assumption of the first TTI to the M-1th TTI. Blind detection result when a symbol is not mapped;

    Performing verification on the first blind detection result and the second blind detection result respectively;

    When the verification of the first blind detection result is accurate, determining that the transmitting end uses a continuous TTI for data transmission; and if the verification of the second blind detection result is accurate, determining the location The transmitting end does not utilize continuous TTI for data transmission.
34. A data transmission device comprising:

    a selection module, configured to select a TTI to be allocated for data transmission; wherein the selected TTI to be allocated is a continuous TTI;

    And a sending module, configured to send, according to the selected TTI to be allocated, transmission mode configuration information, where the transmission mode configuration information indicates that data transmission needs to be performed by using a continuous TTI.
35. The apparatus according to claim 34, wherein said selection module is specifically for,

    Obtaining the set number of transmissions N, where N is an integer, and N≥2;

    In the candidate resource, the idle TTI that satisfies consecutive P transmissions is searched as the TTI to be allocated, where P is an integer and 2≤P≤N; in the process of selecting P, the difference between N and the selected P is preferentially selected. The smallest value.
36. A data transmission device includes: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor; wherein the processor is configured to read a program in the memory, Perform the following process:

    Selecting a TTI to be allocated for data transmission; wherein the selected TTI to be allocated is a continuous TTI;

    Transmitting mode configuration information is sent to the terminal according to the selected TTI to be allocated, and the transmission mode configuration information indicates that data transmission needs to be performed by using a continuous TTI.
37. The apparatus according to claim 36, wherein said processor is further configured to read a program in the memory and perform the following process:

    Obtaining the set number of transmissions N, where N is an integer, and N≥2;

    In the candidate resource, the idle TTI that satisfies consecutive P transmissions is searched as the TTI to be allocated, where P is an integer and 2≤P≤N; in the process of selecting P, the difference between N and the selected P is preferentially selected. The smallest value.
38. The apparatus according to claim 36, wherein

    Continuous TTIs have the same or different frequency domain resources; or

    Continuous TTIs correspond to the same TB or different TBs.
39. A computer readable storage medium for storing a program, wherein the program is executed by a processor to implement the steps of the method of any one of claims 1 to 8; or the program is processed by a processor The steps of the method of any one of claims 14 to 13 are carried out when executed by the processor; or the steps of the method of any one of claims 14 to 16 are carried out when the program is executed by the processor.

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