WO2019127250A1

WO2019127250A1 - Data transmission method, device and system, and computer readable storage medium

Info

Publication number: WO2019127250A1
Application number: PCT/CN2017/119518
Authority: WO
Inventors: 刘洋
Original assignee: 北京小米移动软件有限公司
Priority date: 2017-12-28
Filing date: 2017-12-28
Publication date: 2019-07-04
Also published as: CN108702262B; CN108702262A

Abstract

A data transmission method, device and system, and a computer readable storage medium, belonging to the technical field of communications. The method comprises: receiving first scheduling information sent by a base station by means of a first downlink resource, wherein the first scheduling information is used for indicating that the first downlink resource and at least one second downlink resource bear the same target communication data; receiving, based on the first scheduling information, target communication data on the first downlink resource; and when the target communication data is not correctly received on the first downlink resource, sequentially receiving, based on the first scheduling information, the target communication data on the at least one second downlink resource. According to this disclosure, the reliability of a communication service can be improved.

Description

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

Technical field

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

Background technique

Currently, many communication services (eg, telemedicine services, car networking services, and industrial control services) have higher reliability requirements. The reliability can be characterized by the probability that the receiving end correctly receives the communication data sent by the transmitting end. Generally, for a service with high reliability requirements, the above probability needs to reach 99.9999% or more. At present, there is a need for a data transmission method for improving the reliability of a communication service to ensure the normal operation of the above communication service.

Public content

The present disclosure provides a data transmission method, apparatus, system, and computer readable storage medium capable of improving the reliability of a communication service.

According to a first aspect of an embodiment of the present disclosure, a data transmission method is provided, including:

Receiving first scheduling information that is sent by the base station by using the first downlink resource, where the first scheduling information is used to indicate that the first downlink resource and the at least one second downlink resource carry the same target communication data;

Receiving the target communication data on the first downlink resource based on the first scheduling information;

And when the target communication data is not correctly received on the first downlink resource, the target communication data is sequentially received on the at least one second downlink resource based on the first scheduling information.

Optionally, the method further includes:

When the target communication data is correctly received on the first downlink resource, the target communication data is prohibited from being received on the at least one second downlink resource.

Optionally, the first downlink resource and the second downlink resource are both sub-slot resources, or the first downlink resource and the second downlink resource are time slot resources.

Optionally, the first scheduling information includes first time-frequency position indication information, and the receiving, by the first scheduling information, the target communication data on the first downlink resource, including:

Determining, in the first downlink resource, a first target time-frequency location based on the first time-frequency position indication information;

The target communication data is received at the first target time-frequency location.

Optionally, the first scheduling information includes retransmission times indication information, and the receiving the target communication data on the at least one second downlink resource in sequence based on the first scheduling information, including:

Determining, according to the retransmission number indication information, the number n of the at least one second downlink resource, where n is a positive integer greater than or equal to 1;

Determining a time-frequency location of the at least one second downlink resource based on the number n of the at least one second downlink resource and the time-frequency location of the first downlink resource;

And receiving, according to the time-frequency position of the at least one second downlink resource, the target communication data on the at least one second downlink resource.

Optionally, the first downlink resource and the at least one second downlink resource are located in a first subframe, where the number n of the at least one second downlink resource is based on the first downlink resource Determining the location of the at least one second downlink resource, including:

And determining, by the n downlink resources that are adjacent to the first downlink resource in the first subframe, the at least one second downlink resource.

Optionally, the first downlink resource is located in a second subframe, and the at least one second downlink resource and the first downlink resource are respectively located in different subframes, where the at least one is based on the at least one Determining the location of the at least one second downlink resource by the number n of the downlink resources and the time-frequency location of the first downlink resource, including:

Determining, by the n subframes adjacent to the second subframe, a target subframe, where each of the target subframes includes one of the second downlink resources;

Obtaining a time-frequency position of the first downlink resource in the second subframe;

Determining, according to the time-frequency position of the first downlink resource in the second subframe, a time-frequency location of each of the second downlink resources in the target subframe to which the second downlink resource belongs.

Optionally, the first scheduling information includes first time-frequency position indication information, and the receiving the target communication data on the at least one second downlink resource in sequence based on the first scheduling information, including:

For the i-th second downlink resource of the at least one second downlink resource, when the target communication data is not correctly received on the i-1th second downlink resource, based on the first time-frequency location The indication information determines a second target time-frequency position in the ith second downlink resource, where 2≤i≤n, n is the number of the at least one second downlink resource, and n is greater than or equal to 2 Integer

The target communication data is received at the second target time-frequency location.

Optionally, the first scheduling information is downlink control information DCI or short downlink control information sDCI, and the first scheduling information that is sent by the receiving base station by using the first downlink resource includes:

And performing blind detection on the physical downlink control channel PDCCH that is carried by the first downlink resource, to obtain the first scheduling information, and the blind detection information corresponding to the first scheduling information, from the PDCCH.

Optionally, the receiving the target communication data on the at least one second downlink resource in sequence based on the first scheduling information, including:

For the i-th second downlink resource of the at least one second downlink resource, when the target communication data is not correctly received on the i-1th second downlink resource, based on the blind detection information, Obtaining second scheduling information in the PDCCH carried by the ith second downlink resource, where the second scheduling information includes second time-frequency position indication information, the type of the second scheduling information, and the first scheduling information The same type, 2 ≤ i ≤ n, n is the number of the at least one second downlink resource, and n is a positive integer greater than or equal to 2;

Determining, according to the second time-frequency position indication information, a third target time-frequency position in the i-th second downlink resource;

The target communication data is received at the third target time-frequency location.

Optionally, the retransmission times indication information is configured by a physical layer or a radio downlink resource control layer of the base station.

Optionally, the retransmission frequency indication information is configured by the base station according to a probability that the user equipment UE correctly receives information in a single time.

According to a second aspect of the embodiments of the present disclosure, a data transmission method is provided, including:

Generating first scheduling information, where the first scheduling information is used to indicate that the first downlink resource and the at least one second downlink resource carry the same target communication data;

Transmitting the first scheduling information and the target communication data by using the first downlink resource, and sending the target communication data by using the at least one second downlink resource, so that the user equipment UE is based on the first scheduling The information sequentially receives the target communication data on the first downlink resource and the at least one second downlink resource.

Optionally, the first scheduling information includes first time-frequency position indication information, where the first time-frequency position indication information is used to indicate that the first downlink resource carries the first target of the target communication data. Time-frequency position.

Optionally, the first time-frequency position indication information is further used to indicate a second target time-frequency location in which the target communication data is carried in each of the second downlink resources.

Optionally, the first scheduling information includes retransmission times indication information, where the retransmission times indication information is used to indicate the number of the at least one second downlink resource, so that the UE is configured according to the at least one The number of the two downlink resources and the time-frequency position of the first downlink resource determine a time-frequency location of the at least one second downlink resource.

Optionally, the retransmission times indication information is configured by a physical layer of the base station or a radio downlink resource control layer.

Optionally, the retransmission times indication information is configured by the base station according to a probability that the UE correctly receives information in a single time.

Optionally, the first scheduling information is downlink control information DCI or short downlink control information sDCI;

The second downlink scheduling information is carried in the physical downlink control channel PDCCH that is carried by the second downlink resource, and the type of the second scheduling information is the same as the type of the first scheduling information, where the first scheduling information is The blind detection information is the same as the blind detection information corresponding to the second scheduling information;

The second scheduling information includes second time-frequency position indication information, where the second time-frequency position indication information is used to indicate a third target time-frequency position in which the target communication data is carried in the second downlink resource.

According to a third aspect of the embodiments of the present disclosure, a data transmission apparatus is provided, including:

The scheduling information receiving module is configured to receive first scheduling information that is sent by the base station by using the first downlink resource, where the first scheduling information is used to indicate that the first downlink resource and the at least one second downlink resource carry the same Target communication data;

a first data receiving module, configured to receive the target communication data on the first downlink resource based on the first scheduling information;

a second data receiving module, configured to receive, according to the first scheduling information, the at least one second downlink resource, according to the first scheduling information, when the target communication data is not correctly received on the first downlink resource. Target communication data.

Optionally, the device further includes:

And a prohibiting module, configured to prohibit receiving the target communication data on the at least one second downlink resource when the target communication data is correctly received on the first downlink resource.

Optionally, the first scheduling information includes first time-frequency position indication information, and the first data receiving module is configured to:

Optionally, the first scheduling information includes retransmission times indication information, and the second data receiving module is configured to:

Optionally, the first downlink resource and the at least one second downlink resource are located in a first subframe, and the second data receiving module is configured to:

Optionally, the first downlink resource is located in a second subframe, and the at least one second downlink resource and the first downlink resource are respectively located in different subframes, where the second data receiving module is configured, Used for:

Optionally, the first scheduling information includes first time-frequency position indication information, and the second data receiving module is configured to:

Optionally, the first scheduling information is downlink control information DCI or short downlink control information sDCI, and the scheduling information receiving module is configured to:

Optionally, the second data receiving module is configured to:

According to a fourth aspect of the embodiments of the present disclosure, a data transmission apparatus is provided, including:

a generating module, configured to generate first scheduling information, where the first scheduling information is used to indicate that the first downlink resource and the at least one second downlink resource carry the same target communication data;

a sending module, configured to send the first scheduling information and the target communication data by using the first downlink resource, and send the target communication data by using the at least one second downlink resource, so that the user equipment UE is based on The first scheduling information sequentially receives the target communication data on the first downlink resource and the at least one second downlink resource.

Optionally, the retransmission times indication information is configured by a physical layer of a base station or a radio downlink resource control layer.

According to a fifth aspect of the embodiments of the present disclosure, a data transmission apparatus is provided, including:

processor;

a memory for storing instructions executable by the processor;

Wherein the processor is configured to:

According to a sixth aspect of the embodiments of the present disclosure, a data transmission apparatus is provided, including:

processor;

a memory for storing instructions executable by the processor;

Wherein the processor is configured to:

According to a seventh aspect of the embodiments of the present disclosure, there is provided a data transmission system comprising the data transmission device according to any of the above third aspects, and the data transmission according to any of the above fourth aspects Device.

According to an eighth aspect of the embodiments of the present disclosure, there is provided a computer readable storage medium having stored therein a computer program, the stored computer program being executable by a processing component capable of implementing the first aspect described above Any of the described data transmission methods; or,

The stored computer program can be implemented by the processing component to implement the data transfer method of any of the above second aspects.

The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects:

Receiving the first scheduling information that is sent by the base station, where the first scheduling information is used to indicate that the first downlink resource and the at least one second downlink resource carry the same target communication data, and then the UE may sequentially be based on the first scheduling information. Receiving the target communication data on the first downlink resource and the at least one second downlink resource, until the target communication data is correctly received, because the base station repeatedly sends the same target on the first downlink resource and the at least one second downlink resource. The communication data, so that the UE can continue to receive the target communication data on the at least one second downlink resource even if the target communication data is not correctly received on the first downlink resource, so that the probability that the UE correctly receives the target communication data can be improved. In order to ensure the reliability of the communication business.

The above general description and the following detailed description are intended to be illustrative and not restrictive.

DRAWINGS

The accompanying drawings, which are incorporated in the specification

FIG. 1 is a schematic diagram of an implementation environment, according to an exemplary embodiment.

FIG. 2 is a flowchart of a data transmission method according to an exemplary embodiment.

FIG. 3 is a flowchart of a data transmission method according to an exemplary embodiment.

FIG. 4 is a flowchart of a data transmission method according to an exemplary embodiment.

FIG. 5 is a block diagram of a data transmission apparatus according to an exemplary embodiment.

FIG. 6 is a block diagram of a data transmission apparatus according to an exemplary embodiment.

FIG. 7 is a block diagram of a data transmission apparatus according to an exemplary embodiment.

FIG. 8 is a block diagram of a data transmission apparatus according to an exemplary embodiment.

FIG. 9 is a block diagram of a data transmission apparatus according to an exemplary embodiment.

FIG. 10 is a block diagram of a data transmission system, according to an exemplary embodiment.

Detailed ways

The embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. The following description refers to the same or similar elements in the different figures unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with aspects of the present disclosure as detailed in the appended claims.

In order to make the technical solutions provided by the embodiments of the present disclosure easy to understand, the technical concepts involved in the embodiments of the present disclosure will be explained below.

1. Time slot (English: slot) and sub-time slot (English: subslot):

In an LTE (Long Term Evolution) communication system, one radio frame may generally include 10 subframes, and each subframe may include 2 slots, where each subframe has a length of 1 ms, and the length of each slot. It can usually be 0.5ms.

In the current standardization discussion of the 5G (The Fifth Generation Mobile Communication Technology) communication system, in order to reduce the communication delay, the structure of the subframe is redesigned, and the redesigned subframe may include 2 More than one sub-slot, for example, one subframe may include 6 sub-slots and the like. Among them, the length of each sub-frame after redesign is still 1ms.

2. PDCCH (Physical Downlink Control Channel) and PDSCH (Physical Downlink Shared Channel):

The PDCCH and the PDSCH may be carried in each time slot or each sub-time slot in the subframe, where the PDCCH carried in the time slot carries DCI (Downlink Control Information), and is carried in the sub-timeslot. The PDCCH carries the sDCI (short downlink control information), and the PDSCH carried in the time slot or the subslot carries the communication data.

In a practical application, the PDCCH may be configured to carry multiple DCIs or multiple sDCIs, and the multiple DCIs or multiple sDCIs are used to schedule different UEs (User Equipments), and a certain UE may perform blind detection on the PDCCH. To obtain the DCI or sDCI of the certain UE, the DCI or the sDCI belonging to the certain UE may indicate the time-frequency location on the PDSCH, and the certain UE may receive the base station to send to the UE at the time-frequency location. Communication data.

The implementation environment involved in the embodiments of the present disclosure is as follows: As shown in FIG. 1 , the implementation environment involved in the embodiments of the present disclosure includes a base station 10 and a UE 20, and the base station 10 and the UE 20 can be connected through a communication network. The UE 20 is any one of the cells served by the base station 10, wherein the communication network may be an LTE communication network and/or a 5G communication network, or other communication similar to the foregoing LTE communication network and/or 5G communication network. The internet.

FIG. 2 is a flowchart of a data transmission method according to an exemplary embodiment. As shown in FIG. 2, the data transmission method is used in the UE 20 shown in FIG. 1, and the data transmission method includes the following steps.

Step 201: The UE receives the first scheduling information that is sent by the base station by using the first downlink resource, where the first scheduling information is used to indicate that the first downlink resource and the at least one second downlink resource carry the same target communication data.

Step 202: The UE receives the target communication data on the first downlink resource based on the first scheduling information.

Step 203: When the target communication data is not correctly received on the first downlink resource, the UE sequentially receives the target communication data on the at least one second downlink resource according to the first scheduling information.

In summary, the data transmission method provided by the embodiment of the present disclosure receives the first scheduling information sent by the base station, where the first scheduling information is used to indicate that the first downlink resource and the at least one second downlink resource carry the same Target communication data, and then the UE may sequentially receive the target communication data on the first downlink resource and the at least one second downlink resource based on the first scheduling information, until the target communication data is correctly received, because the base station is in the first The same target communication data is repeatedly sent on the line resource and the at least one second downlink resource, so that the UE can continue to receive the target on the at least one second downlink resource even if the target communication data is not correctly received on the first downlink resource. The communication data can improve the probability that the UE correctly receives the target communication data, thereby ensuring the reliability of the communication service.

FIG. 3 is a flowchart of a data transmission method according to an exemplary embodiment. As shown in FIG. 3, the data transmission method is used in the base station shown in FIG. 1. The data transmission method includes the following steps.

Step 301: The base station generates first scheduling information, where the first scheduling information is used to indicate that the first downlink resource and the at least one second downlink resource carry the same target communication data.

Step 302: The base station sends the first scheduling information and the target communication data by using the first downlink resource, and sends the target communication data by using the at least one second downlink resource, so that the user equipment UE is sequentially in the first according to the first scheduling information. The target communication data is received on the row resource and the at least one second downlink resource.

In summary, the embodiment of the present disclosure provides a data transmission method, where the first scheduling information is generated by the base station, where the first scheduling information is used to indicate that the first downlink resource and the at least one second downlink resource carry the same target communication. Data, the base station may send the first scheduling information and the target communication data by using the first downlink resource, and send the target communication data by using the second downlink resource, so that the UE may sequentially perform the first downlink based on the first scheduling information. Receiving the target communication data on the resource and the at least one second downlink resource, until the target communication data is correctly received, because the base station repeatedly transmits the same target communication data on the first downlink resource and the at least one second downlink resource, The UE may continue to receive the target communication data on the at least one second downlink resource even if the target communication data is not correctly received on the first downlink resource, so that the probability that the UE correctly receives the target communication data is improved, thereby ensuring communication. Business reliability.

FIG. 4 is a flowchart of a data transmission method according to an exemplary embodiment. As shown in FIG. 4, the data transmission method is used in the implementation environment shown in FIG. 1, and the data transmission method includes the following steps.

Step 401: The base station generates first scheduling information.

The first scheduling information may be DCI or sDCI, and the first scheduling information may indicate that the first downlink resource and the at least one second downlink resource carry the same target communication data.

When the data transmission method is applied to the 5G communication system, the first scheduling information is the sDCI, and the first downlink resource and the at least one second downlink resource may be the sub-slot resources.

When the data transmission method is applied to the LTE communication system, the first scheduling information is the DCI. In this case, the first downlink resource and the at least one second downlink resource may all be time slot resources.

Optionally, the foregoing first downlink resource and the at least one second downlink resource may be located in the same subframe, or may be located in different subframes.

In actual implementation, the foregoing first scheduling information may include first time-frequency position indication information and retransmission times indication information.

The first time-frequency position indication information may be used to schedule the first downlink resource, and may also be used to schedule the first downlink resource and the at least one second downlink resource. When the first time-frequency position indication information is used to schedule the first downlink resource, the first time-frequency position indication information may indicate that the first target time-frequency position of the first downlink resource carries the target communication data, as described above. The PDSCH carried in the time slot or the sub-slot carries the communication data. In other words, the target communication data is generally carried on the PDSCH. Therefore, the first target time-frequency position indicated by the first time-frequency position indication information is It may be located in the PDSCH carried by the first downlink resource. When the first time-frequency position indication information is used to schedule the first downlink resource and the at least one second downlink resource, the first time-frequency position indication information may indicate each of the first target time-frequency positions. a second target time-frequency location carrying the target communication data in the second downlink resource, and the second target time-frequency location in the second target downlink resource may be located in the same manner as the first target time-frequency location described above The PDSCH carried by the certain second downlink resource.

The retransmission times indication information may be used to indicate the number n of the at least one second downlink resource, where n is a positive integer greater than or equal to 1, and the retransmission times indication information may be performed by a physical layer of the base station or a radio downlink resource control layer. Configure it.

In an actual application, the retransmission times indication information may be configured by the base station according to the probability that the UE correctly receives the information in a single time. Optionally, the base station may configure the retransmission times indication information according to the following formula:

n=Ceiling(log _(1-b%) (1-a%)-1).

Where n is the number of at least one second downlink resource indicated by the retransmission number indication information, and a% is a probability that the communication service with high reliability requirement requires the UE to correctly receive the information, and b% is that the UE can be correctly used once. The probability of receiving the information, Ceiling is the rounding up operation.

For example, the probability that the UE can receive the information correctly in a single time is 99%, and the probability that the communication service with the high reliability requirement requires the UE to correctly receive the information is 99.9999%, and the number of the at least one second downlink resource may be: n=log _0.01 0.000001-1=2, the base station may configure retransmission times indication information based on the number of the at least one second downlink resource.

It should be noted that the above formulas provided by the embodiments of the present disclosure are merely exemplary, and are not intended to limit the scope of the disclosure.

Step 402: The base station sends the first scheduling information and the target communication data by using the first downlink resource.

The base station may send the first scheduling information by using the PDCCH carried by the first downlink resource, and the base station may send the target communication data by using the PDSCH carried by the first downlink resource.

Step 403: The base station sends the target communication data by using at least one second downlink resource.

Similarly, the base station may send the target communication data by using a PDSCH carried by each of the at least one second downlink resource.

As described above, the first time-frequency position indication information may be used only for scheduling the first downlink resource, and in this case, the PDCCH in the second downlink resource bearer may also carry the second scheduling information, where each The second scheduling information is used to schedule the second downlink resource corresponding to the second scheduling information. For example, if the PDCCH in the second downlink resource that is carried by the second downlink resource carries the second scheduling information, the second scheduling information is used. It can be used to schedule the second downlink resource.

Optionally, each second scheduling information may include second time-frequency position indication information, where the second time-frequency position indication information may indicate that the second downlink resource corresponding to the second scheduling information carries the target communication data. The third target time-frequency location is the same as the above description. The third target time-frequency location is located in the PDSCH carried by the second downlink resource corresponding to the second scheduling information. In actual implementation, the third target time-frequency positions in different second downlink resources may be the same or different.

It should be noted that the second scheduling information and the first scheduling information may be of the same type, that is, when the first scheduling information is DCI, the second scheduling information is also DCI, and when the first scheduling information is sDCI, The second scheduling information can also be sDCI. In addition, the blind detection information corresponding to the first scheduling information may be the same as the blind detection information corresponding to the second scheduling information, so that after the UE obtains the first scheduling information by blindly detecting the PDCCH from the first downlink resource, The PDCCH of each second downlink resource bearer may be blindly checked to obtain the second scheduling information, so that the UE can blindly reduce the PDCCH carried by each second downlink resource by using the blind detection information corresponding to the first scheduling information. The delay of the inspection.

Certainly, when the first time-frequency position indication information is used to schedule the first downlink resource and the at least one second downlink resource, the PDCCH in the second downlink resource bearer may not need to carry the second scheduling information.

Step 404: The UE receives first scheduling information that is sent by the base station by using the first downlink resource.

The UE may perform a blind check on the PDCCH carried by the first downlink resource to obtain the first scheduling information, and the UE may also obtain the blind detection information corresponding to the first scheduling information, for example, the blind detection information may be an aggregation level, etc. information.

Step 405: The UE receives target communication data on the first downlink resource according to the first scheduling information.

As described above, the first scheduling information may include first time-frequency position indication information, where the first time-frequency position indication information may indicate a first target time-frequency location in which the target downlink data is carried in the first downlink resource, and therefore, the UE After acquiring the first scheduling information, the target communication data may be received at the first target time-frequency location according to the indication of the first scheduling information.

Step 406: When the target communication data is not correctly received on the first downlink resource, the UE sequentially receives the target communication data on the at least one second downlink resource based on the first scheduling information, until the target communication data is correctly received.

In practical applications, the probability that the UE correctly receives the communication data in a single time is generally 100%, that is, in actual implementation, the UE may not be able to correctly receive the target communication data on the first downlink resource. In this case, the UE needs to receive the target communication data on the at least one second downlink resource in sequence until the target communication data is correctly received.

Optionally, the UE may determine, according to the retransmission number indication information in the first scheduling information, the number n of the at least one second downlink resource, and based on the number n of the at least one second downlink resource and the time of the first downlink resource. The frequency location determines a time-frequency location of the at least one second downlink resource, and the UE may sequentially receive the target communication data on the at least one second downlink resource based on the time-frequency location of the at least one second downlink resource, until the target communication is correctly received. The data is up.

As described above, the first downlink resource and the at least one second downlink resource may be located in the same subframe, or may be located in different subframes. In the following, the embodiment of the present disclosure will be based on the UE in at least two cases. A technical process of determining the time-frequency position of at least one second downlink resource by the number n of the second downlink resource and the time-frequency position of the first downlink resource is described:

In the first case, the first downlink resource and the at least one second downlink resource are located in the same subframe (the same subframe is the first subframe). In this case, the UE may use the first subframe and the first subframe. The n downlink resources that are adjacent to one downlink resource are determined as at least one second downlink resource. For example, when the first downlink resource is the first sub-time slot in the first subframe, and n is 2, the UE may The second sub-slot and the third sub-slot in one subframe are determined to be at least one second downlink resource.

In the second case, the first downlink resource and the at least one second downlink resource are respectively located in different subframes. In this case, the UE may use the subframe corresponding to the first downlink resource (referred to as the second subframe). The subframes are determined to be target subframes, where each target subframe may include a second downlink resource, and then the UE may acquire a time-frequency location of the first downlink resource in the second subframe. And determining, according to the time-frequency position of the first downlink resource in the second subframe, a time-frequency location of each second downlink resource in the target subframe to which the second downlink resource belongs, that is, the UE may The time-frequency position in the second subframe is determined as the time-frequency position of each second downlink resource in the associated target subframe. For example, when the first downlink resource is the first sub-slot in the second subframe, and n is 2, the UE may be adjacent to the second subframe and located after the second subframe in the time domain. The two subframes are determined as target subframes, wherein each target subframe may include a second downlink resource, and then the UE may determine the first subframe in each target subframe as the second downlink resource.

As described above, the first scheduling information may be used to schedule only the first downlink resource, and may also be used to schedule the first downlink resource and the at least one second downlink resource. In the following two embodiments, The technical process of the UE receiving the target communication data on the at least one second downlink resource in sequence until the target communication data is correctly received is described:

In the first case, the first scheduling information is used to schedule the first downlink resource and the at least one second downlink resource. In this case, when n is equal to 1, that is, when the number of the at least one second downlink resource is 1, the UE may determine the bearer in the second downlink resource indicated by the first time-frequency position indication information. Having a second target time-frequency location of the target communication data, and then the UE may receive the target communication data at the second target time-frequency position in the second downlink resource; when n is a positive integer greater than or equal to 2, that is, when When the number of the at least one second downlink resource is a positive integer greater than or equal to 2, for the ith (2≤i≤n) second downlink resources in the at least one second downlink resource, when the UE is in When the target communication data is not correctly received on the i-1th second downlink resource, the UE may determine that the second target of the target communication data is carried in the i-th second downlink resource indicated by the first time-frequency position indication information. a frequency location, and then the UE may receive the target communication data at the second target time-frequency location. When the UE correctly receives the target communication data on the i-1th second downlink resource, the UE may not need to be in the ith Number of destination communication received on the second downlink resource according to.

In the second case, the first scheduling information is only used to schedule the first downlink resource. In this case, when n is equal to 1, that is, when the number of the at least one second downlink resource is 1, the UE may perform the PDCCH carried in the second downlink resource based on the blind detection information acquired in step 404. Performing a blind check to obtain the second scheduling information carried in the PDCCH, and then determining, by the UE, the third target time-frequency location of the second downlink resource that is instructed by the second scheduling information to carry the target communication data, and Receiving target communication data at the third target time-frequency position; when n is a positive integer greater than or equal to 2, that is, when the number of the at least one second downlink resource is a positive integer greater than or equal to 2, for at least For the i-th (2 ≤ i ≤ n) second downlink resources in a second downlink resource, when the UE does not correctly receive the target communication data on the i-1th second downlink resource, the UE may be based on the step The blind detection information obtained in the 404 is used to perform blind detection on the PDCCH of the ith second downlink resource to obtain the second scheduling information, and then the UE may determine the ith second downlink indicated by the second scheduling information. The number of target communications carried in the resource According to the third target time-frequency position, and receiving the target communication data at the third target time-frequency position, and similarly, when the UE correctly receives the target communication data on the i-1th second downlink resource, the UE It may not be necessary to receive the target communication data on the ith second downlink resource.

Step 407: When the target communication data is correctly received on the first downlink resource, the UE prohibits receiving the target communication data on the at least one second downlink resource.

When the target communication data is correctly received on the first downlink resource, the UE may not receive the target communication data on the at least one second downlink resource.

FIG. 5 is a block diagram of a data transmission device 500, which may be the UE 20 shown in FIG. 1, according to an exemplary embodiment. Referring to FIG. 5, the data transmission device 500 includes a scheduling information receiving module 501, a first data receiving module 502, and a second data receiving module 503.

The scheduling information receiving module 501 is configured to receive first scheduling information that is sent by the base station by using the first downlink resource, where the first scheduling information is used to indicate that the first downlink resource and the at least one second downlink resource carry the same Target communication data.

The first data receiving module 502 is configured to receive the target communication data on the first downlink resource based on the first scheduling information.

The second data receiving module 503 is configured to receive the target communication data on the at least one second downlink resource in sequence based on the first scheduling information when the target communication data is not correctly received on the first downlink resource. .

In an embodiment of the present disclosure, the first downlink resource and the second downlink resource are both sub-slot resources, or the first downlink resource and the second downlink resource are time slot resources.

In an embodiment of the present disclosure, the first scheduling information includes first time-frequency position indication information, where the first data receiving module 502 is configured to be in the first downlink resource based on the first time-frequency position indication information. Determining a first target time-frequency location; receiving the target communication data at the first target time-frequency location.

In an embodiment of the present disclosure, the first scheduling information includes retransmission times indication information, and the second data receiving module 503 is configured to determine, according to the retransmission number indication information, the number of the at least one second downlink resource. And n is a positive integer greater than or equal to 1; determining a time-frequency location of the at least one second downlink resource based on the number n of the at least one second downlink resource and a time-frequency location of the first downlink resource; The time-frequency position of the at least one second downlink resource sequentially receives the target communication data on the at least one second downlink resource until the target communication data is correctly received.

In an embodiment of the present disclosure, the first downlink resource and the at least one second downlink resource are located in a first subframe, and the second data receiving module 503 is configured to use the first subframe and the first subframe. The n downlink resources adjacent to a downlink resource are determined as the at least one second downlink resource.

In an embodiment of the present disclosure, the first downlink resource is located in a second subframe, and the at least one second downlink resource and the first downlink resource are respectively located in different subframes, and the second data receiving module is 503. The N subframes that are adjacent to the second subframe are determined as target subframes, where the target subframe includes one second downlink resource, and the first downlink resource is obtained in the second subframe. And determining a time-frequency position of each of the second downlink resources in the associated target subframe according to the time-frequency position of the first downlink resource in the second subframe.

In an embodiment of the present disclosure, the first scheduling information includes first time-frequency position indication information, and the second data receiving module 503 is configured to use, for the ith second downlink resource in the at least one second downlink resource. And determining, when the target communication data is not correctly received on the i-1th second downlink resource, determining, according to the first time-frequency position indication information, a second target time-frequency location in the i-th second downlink resource, 2 ≤ i ≤ n, n is the number of the at least one second downlink resource, and n is a positive integer greater than or equal to 2; the target communication data is received at the second target time-frequency location.

In an embodiment of the present disclosure, the first scheduling information is DCI or sDCI, and the scheduling information receiving module 501 is configured to perform blind detection on the PDCCH carried by the first downlink resource to obtain the PDCCH from the PDCCH. First scheduling information, and blind detection information corresponding to the first scheduling information.

In an embodiment of the present disclosure, the second data receiving module 503 is configured to: when there is no ith second downlink resource in the at least one second downlink resource, on the i-1th second downlink resource. When the target communication data is correctly received, the second scheduling information is obtained from the PDCCH of the ith second downlink resource, and the second scheduling information includes second time-frequency position indication information, where the The type of the second scheduling information is the same as the type of the first scheduling information, 2≤i≤n, n is the number of the at least one second downlink resource, and n is a positive integer greater than or equal to 2; The frequency position indication information determines a third target time-frequency position in the i-th second downlink resource;

In an embodiment of the present disclosure, the retransmission frequency indication information is configured by a physical layer of the base station or a radio downlink resource control layer.

In an embodiment of the present disclosure, the retransmission frequency indication information is configured by the base station according to a probability that the UE correctly receives information in a single time.

The embodiment of the present disclosure further provides another data transmission device 600. In addition to the modules included in the data transmission device 500, the data transmission device 600 may further include a prohibition module 504.

The prohibiting module 504 is configured to prohibit receiving the target communication data on the at least one second downlink resource when the target communication data is correctly received on the first downlink resource.

In summary, the data transmission apparatus provided by the embodiment of the present disclosure receives the first scheduling information sent by the base station, where the first scheduling information is used to indicate that the first downlink resource and the at least one second downlink resource carry the same Target communication data, and then receiving the target communication data on the first downlink resource and the at least one second downlink resource in sequence based on the first scheduling information, until the target communication data is correctly received, because the base station is in the first downlink resource. And transmitting the same target communication data repeatedly on the at least one second downlink resource, so that the target communication data may continue to be received on the at least one second downlink resource even if the target communication data is not correctly received on the first downlink resource, In this way, the probability of correctly receiving the target communication data can be improved, thereby ensuring the reliability of the communication service.

With regard to the apparatus in the above embodiments, the specific manner in which the respective modules perform the operations has been described in detail in the embodiment relating to the method, and will not be explained in detail herein.

FIG. 7 is a block diagram of a data transmission apparatus 700, which may be the base station 10 shown in FIG. 1, according to an exemplary embodiment. Referring to FIG. 7, the data transmission device 700 includes a generation module 701 and a transmission module 702.

The generating module 701 is configured to generate first scheduling information, where the first scheduling information is used to indicate that the first downlink resource and the at least one second downlink resource carry the same target communication data.

The sending module 702 is configured to send the first scheduling information and the target communication data by using the first downlink resource, and send the target communication data by using the at least one second downlink resource, so that the UE is based on the first scheduling information. The target communication data is sequentially received on the first downlink resource and the at least one second downlink resource.

In an embodiment of the present disclosure, the first scheduling information includes first time-frequency position indication information, where the first time-frequency position indication information is used to indicate that the first downlink resource carries the first target communication data. Target time-frequency position.

In an embodiment of the present disclosure, the first time-frequency position indication information is further used to indicate a second target time-frequency position in which the target communication data is carried in each of the second downlink resources.

In an embodiment of the present disclosure, the first scheduling information includes retransmission times indication information, where the retransmission times indication information is used to indicate the number of the at least one second downlink resource, so that the UE is configured according to the at least one The number of the two downlink resources and the time-frequency position of the first downlink resource determine a time-frequency location of the at least one second downlink resource.

In an embodiment of the present disclosure, the retransmission frequency indication information is configured by a physical layer of a base station or a radio downlink resource control layer.

In an embodiment of the present disclosure, the retransmission frequency indication information is configured by the base station according to a probability that the UE correctly receives the information in a single time.

In an embodiment of the present disclosure, the first scheduling information is a DCI or an sDCI; the physical downlink control channel PDCCH carried by the second downlink resource carries a second scheduling information, and the type of the second scheduling information is The first scheduling information is of the same type, and the blind detection information corresponding to the first scheduling information is the same as the blind detection information corresponding to the second scheduling information; the second scheduling information includes second time-frequency position indication information, and the second The time-frequency location indication information is used to indicate a third target time-frequency location in the second downlink resource that carries the target communication data.

In summary, the data transmission apparatus provided by the embodiment of the present disclosure generates the first scheduling information, where the first scheduling information is used to indicate that the first downlink resource and the at least one second downlink resource carry the same target communication. Data, and then transmitting the first scheduling information and the target communication data by using the first downlink resource, and sending the target communication data by using the second downlink resource, so that the UE may sequentially perform the first downlink resource and based on the first scheduling information. Receiving the target communication data on the at least one second downlink resource until the target communication data is correctly received, because the UE transmits the same target communication data repeatedly on the first downlink resource and the at least one second downlink resource, The target communication data is not correctly received on the first downlink resource, and the target communication data may be continuously received on the at least one second downlink resource, so that the probability that the UE correctly receives the target communication data is improved, thereby ensuring reliable communication service. Sex.

FIG. 8 is a block diagram of a data transmission device 800, according to an exemplary embodiment. For example, device 800 can be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a gaming console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.

Referring to Figure 8, device 800 can include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, And a communication component 816.

Processing component 802 typically controls the overall operation of device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. Processing component 802 can include one or more processors 820 to execute instructions to perform all or part of the steps of the above described methods. Moreover, processing component 802 can include one or more modules to facilitate interaction between component 802 and other components. For example, processing component 802 can include a multimedia module to facilitate interaction between multimedia component 808 and processing component 802.

Memory 804 is configured to store various types of data to support operation at device 800. Examples of such data include instructions for any application or method operating on device 800, contact data, phone book data, messages, pictures, videos, and the like. The memory 804 can be implemented by any type of volatile or non-volatile storage device, or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable. Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Disk or Optical Disk.

Power component 806 provides power to various components of device 800. Power component 806 can include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for device 800.

The multimedia component 808 includes a screen between the device 800 and the user that provides an output interface. In some embodiments, the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, slides, and gestures on the touch panel. The touch sensor may sense not only the boundary of the touch or sliding action, but also the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front camera and/or a rear camera. The front camera and/or the rear camera can receive external multimedia data when the device 800 is in an operational mode, such as a shooting mode or a video mode. Each front and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.

The audio component 810 is configured to output and/or input an audio signal. For example, the audio component 810 includes a microphone (MIC) that is configured to receive an external audio signal when the device 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal may be further stored in memory 804 or transmitted via communication component 816. In some embodiments, the audio component 810 also includes a speaker for outputting an audio signal.

The I/O interface 812 provides an interface between the processing component 802 and the peripheral interface module, which may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to, a home button, a volume button, a start button, and a lock button.

Sensor assembly 814 includes one or more sensors for providing device 800 with a status assessment of various aspects. For example, sensor assembly 814 can detect an open/closed state of device 800, relative positioning of components, such as the display and keypad of device 800, and sensor component 814 can also detect a change in position of one component of device 800 or device 800. The presence or absence of user contact with device 800, device 800 orientation or acceleration/deceleration, and temperature variation of device 800. Sensor assembly 814 can include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 can also include an acceleration sensor, a gyro sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

Communication component 816 is configured to facilitate wired or wireless communication between device 800 and other devices. The device 800 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives broadcast signals or broadcast associated information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, device 800 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), a controller, a microcontroller, a microprocessor, or other electronic component implementation is used to perform the method performed by the UE in the data transmission method provided by the embodiments of the present disclosure.

In an exemplary embodiment, there is also provided a non-transitory computer readable storage medium comprising instructions, such as a memory 804 comprising instructions executable by processor 820 of apparatus 800 to perform the data provided by embodiments of the present disclosure. The method performed by the UE in the transmission method. For example, the non-transitory computer readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, and an optical data storage device.

FIG. 9 is a block diagram of a data transmission device 900, according to an exemplary embodiment. For example, data transmission device 900 can be a base station. As shown in FIG. 9, the data transmission device 900 can include a processor 901, a receiver 902, a transmitter 903, and a memory 904. Receiver 902, transmitter 903, and memory 904 are coupled to processor 901 via a bus, respectively.

The processor 901 includes one or more processing cores, and the processor 901 executes the method executed by the base station in the data transmission method provided by the embodiment of the present disclosure by running a software program and a module. Memory 904 can be used to store software programs as well as modules. Specifically, the memory 904 can store an application module 9042 required by the operating system 9041 and at least one function. The receiver 902 is configured to receive target communication data transmitted by other devices, and the transmitter 903 is configured to transmit target communication data to other devices.

FIG. 10 is a block diagram of a data transmission system 1000, as shown in FIG. 10, including a base station 1001 and a UE 1002, according to an exemplary embodiment.

The base station 1001 is configured to perform a data transmission method performed by a base station in the embodiment shown in FIG.

The UE 1002 is configured to perform a data transmission method performed by the UE in the embodiment shown in FIG.

In an exemplary embodiment, there is also provided a computer readable storage medium having stored therein a computer program capable of implementing a data transmission method when executed by a processing component, for example, The data transmission method may be: receiving first scheduling information that is sent by the base station by using the first downlink resource, where the first scheduling information is used to indicate that the first downlink resource and the at least one second downlink resource carry the same target communication data. Receiving the target communication data on the first downlink resource based on the first scheduling information, and when the target communication data is not correctly received on the first downlink resource, the at least the first scheduling information is sequentially based on the first scheduling information. Receiving the target communication data on a second downlink resource;

Alternatively, the data transmission method may be: generating first scheduling information, where the first scheduling information is used to indicate that the first downlink resource and the at least one second downlink resource carry the same target communication data, and the first downlink is used. The resource sends the first scheduling information and the target communication data, and sends the target communication data by using the at least one second downlink resource, so that the user equipment UE sequentially performs the first downlink resource and the at least based on the first scheduling information. The target communication data is received on a second downlink resource.

Other embodiments of the present disclosure will be readily apparent to those skilled in the <RTIgt; The present application is intended to cover any variations, uses, or adaptations of the present disclosure, which are in accordance with the general principles of the disclosure and include common general knowledge or common technical means in the art that are not disclosed in the present disclosure. . The specification and examples are to be regarded as illustrative only,

It is to be understood that the invention is not limited to the details of the details and The scope of the disclosure is to be limited only by the appended claims.

Claims

A data transmission method, characterized in that the method comprises:

Receiving first scheduling information that is sent by the base station by using the first downlink resource, where the first scheduling information is used to indicate that the first downlink resource and the at least one second downlink resource carry the same target communication data;

Receiving the target communication data on the first downlink resource based on the first scheduling information;

And when the target communication data is not correctly received on the first downlink resource, the target communication data is sequentially received on the at least one second downlink resource based on the first scheduling information.
The method of claim 1 further comprising:

When the target communication data is correctly received on the first downlink resource, the target communication data is prohibited from being received on the at least one second downlink resource.
The method according to claim 1, wherein the first downlink resource and the second downlink resource are both sub-slot resources, or the first downlink resource and the second downlink resource All are time slot resources.
The method according to claim 1, wherein the first scheduling information comprises first time-frequency position indication information, and the receiving the target on the first downlink resource based on the first scheduling information Communication data, including:

Determining, in the first downlink resource, a first target time-frequency location based on the first time-frequency position indication information;

The target communication data is received at the first target time-frequency location.
The method according to claim 1, wherein the first scheduling information comprises retransmission times indication information, and the receiving the target on the at least one second downlink resource in sequence based on the first scheduling information Communication data, including:

Determining, according to the retransmission number indication information, the number n of the at least one second downlink resource, where n is a positive integer greater than or equal to 1;

Determining a time-frequency location of the at least one second downlink resource based on the number n of the at least one second downlink resource and the time-frequency location of the first downlink resource;

And receiving, according to the time-frequency position of the at least one second downlink resource, the target communication data on the at least one second downlink resource.
The method according to claim 5, wherein the first downlink resource and the at least one second downlink resource are located in a first subframe, and the number of the at least one second downlink resource is based on And determining, by the time-frequency position of the first downlink resource, a location of the at least one second downlink resource, including:

And determining, by the n downlink resources that are adjacent to the first downlink resource in the first subframe, the at least one second downlink resource.
The method according to claim 5, wherein the first downlink resource is located in a second subframe, and the at least one second downlink resource and the first downlink resource are respectively located in different subframes. Determining the location of the at least one second downlink resource based on the number n of the at least one second downlink resource and the time-frequency location of the first downlink resource, including:

Determining, by the n subframes adjacent to the second subframe, a target subframe, where each of the target subframes includes one of the second downlink resources;

Obtaining a time-frequency position of the first downlink resource in the second subframe;

Determining, according to the time-frequency position of the first downlink resource in the second subframe, a time-frequency location of each of the second downlink resources in the target subframe to which the second downlink resource belongs.
The method according to claim 1, wherein the first scheduling information comprises first time-frequency position indication information, and the receiving, according to the first scheduling information, sequentially on the at least one second downlink resource Target communication data, including:

For the i-th second downlink resource of the at least one second downlink resource, when the target communication data is not correctly received on the i-1th second downlink resource, based on the first time-frequency location The indication information determines a second target time-frequency position in the ith second downlink resource, where 2≤i≤n, n is the number of the at least one second downlink resource, and n is greater than or equal to 2 Integer

The target communication data is received at the second target time-frequency location.
The method according to claim 1, wherein the first scheduling information is downlink control information DCI or short downlink control information sDCI, and the first scheduling information that is sent by the receiving base station by using the first downlink resource includes:

And performing blind detection on the physical downlink control channel PDCCH that is carried by the first downlink resource, to obtain the first scheduling information, and the blind detection information corresponding to the first scheduling information, from the PDCCH.
The method according to claim 9, wherein the receiving the target communication data on the at least one second downlink resource in sequence based on the first scheduling information comprises:

For the i-th second downlink resource of the at least one second downlink resource, when the target communication data is not correctly received on the i-1th second downlink resource, based on the blind detection information, Obtaining second scheduling information in the PDCCH carried by the ith second downlink resource, where the second scheduling information includes second time-frequency position indication information, the type of the second scheduling information, and the first scheduling information The same type, 2 ≤ i ≤ n, n is the number of the at least one second downlink resource, and n is a positive integer greater than or equal to 2;

Determining, according to the second time-frequency position indication information, a third target time-frequency position in the i-th second downlink resource;

The target communication data is received at the third target time-frequency location.
The method according to claim 5, wherein the retransmission order indication information is configured by a physical layer of the base station or a radio downlink resource control layer.
The method according to claim 5, wherein the retransmission frequency indication information is configured by the base station according to a probability that the user equipment UE correctly receives information a single time.
A data transmission method, characterized in that the method comprises:

Generating first scheduling information, where the first scheduling information is used to indicate that the first downlink resource and the at least one second downlink resource carry the same target communication data;

Transmitting the first scheduling information and the target communication data by using the first downlink resource, and sending the target communication data by using the at least one second downlink resource, so that the user equipment UE is based on the first scheduling The information sequentially receives the target communication data on the first downlink resource and the at least one second downlink resource.
The method according to claim 13, wherein the first downlink resource and the second downlink resource are both sub-slot resources, or the first downlink resource and the second downlink resource All are time slot resources.
The method according to claim 13, wherein the first scheduling information includes first time-frequency position indication information, and the first time-frequency position indication information is used to indicate that the first downlink resource carries a first target time-frequency location of the target communication data.
The method according to claim 15, wherein the first time-frequency position indication information is further used to indicate a second target time-frequency position in which the target communication data is carried in each of the second downlink resources.
The method according to claim 13, wherein the first scheduling information includes retransmission times indication information, and the retransmission times indication information is used to indicate the number of the at least one second downlink resource, so that The UE determines a time-frequency location of the at least one second downlink resource according to the number of the at least one second downlink resource and the time-frequency location of the first downlink resource.
The method according to claim 17, wherein the retransmission order indication information is configured by a physical layer of a base station or a radio downlink resource control layer.
The method according to claim 17, wherein the retransmission number indication information is configured by the base station according to a probability that the UE correctly receives the information in a single time.
The method according to claim 13, wherein the first scheduling information is downlink control information DCI or short downlink control information sDCI;

The second downlink scheduling information is carried in the physical downlink control channel PDCCH that is carried by the second downlink resource, and the type of the second scheduling information is the same as the type of the first scheduling information, where the first scheduling information is The blind detection information is the same as the blind detection information corresponding to the second scheduling information;

The second scheduling information includes second time-frequency position indication information, where the second time-frequency position indication information is used to indicate a third target time-frequency position in which the target communication data is carried in the second downlink resource.
A data transmission device, characterized in that the device comprises:

The scheduling information receiving module is configured to receive first scheduling information that is sent by the base station by using the first downlink resource, where the first scheduling information is used to indicate that the first downlink resource and the at least one second downlink resource carry the same Target communication data;

a first data receiving module, configured to receive the target communication data on the first downlink resource based on the first scheduling information;

a second data receiving module, configured to receive, according to the first scheduling information, the at least one second downlink resource, according to the first scheduling information, when the target communication data is not correctly received on the first downlink resource. Target communication data.
The device of claim 21, wherein the device further comprises:

And a prohibiting module, configured to prohibit receiving the target communication data on the at least one second downlink resource when the target communication data is correctly received on the first downlink resource.
The device according to claim 21, wherein the first downlink resource and the second downlink resource are both sub-slot resources, or the first downlink resource and the second downlink resource All are time slot resources.
The device according to claim 21, wherein the first scheduling information comprises first time-frequency position indication information, and the first data receiving module is configured to:

Determining, in the first downlink resource, a first target time-frequency location based on the first time-frequency position indication information;

The target communication data is received at the first target time-frequency location.
The device according to claim 21, wherein the first scheduling information comprises retransmission times indication information, and the second data receiving module is configured to:

Determining, according to the retransmission number indication information, the number n of the at least one second downlink resource, where n is a positive integer greater than or equal to 1;

Determining a time-frequency location of the at least one second downlink resource based on the number n of the at least one second downlink resource and the time-frequency location of the first downlink resource;

And receiving, according to the time-frequency position of the at least one second downlink resource, the target communication data on the at least one second downlink resource.
The apparatus according to claim 25, wherein the first downlink resource and the at least one second downlink resource are located in a first subframe, and the second data receiving module is configured to:

And determining, by the n downlink resources that are adjacent to the first downlink resource in the first subframe, the at least one second downlink resource.
The apparatus according to claim 25, wherein the first downlink resource is located in a second subframe, and the at least one second downlink resource and the first downlink resource are respectively located in different subframes. The second data receiving module is configured to:

Determining, by the n subframes adjacent to the second subframe, a target subframe, where each of the target subframes includes one of the second downlink resources;

Obtaining a time-frequency position of the first downlink resource in the second subframe;

Determining, according to the time-frequency position of the first downlink resource in the second subframe, a time-frequency location of each of the second downlink resources in the target subframe to which the second downlink resource belongs.
The device according to claim 21, wherein the first scheduling information comprises first time-frequency position indication information, and the second data receiving module is configured to:

For the i-th second downlink resource of the at least one second downlink resource, when the target communication data is not correctly received on the i-1th second downlink resource, based on the first time-frequency location The indication information determines a second target time-frequency position in the ith second downlink resource, where 2≤i≤n, n is the number of the at least one second downlink resource, and n is greater than or equal to 2 Integer

The target communication data is received at the second target time-frequency location.
The device according to claim 21, wherein the first scheduling information is downlink control information DCI or short downlink control information sDCI, and the scheduling information receiving module is configured to:

And performing blind detection on the physical downlink control channel PDCCH that is carried by the first downlink resource, to obtain the first scheduling information, and the blind detection information corresponding to the first scheduling information, from the PDCCH.
The device according to claim 29, wherein the second data receiving module is configured to:

For the i-th second downlink resource of the at least one second downlink resource, when the target communication data is not correctly received on the i-1th second downlink resource, based on the blind detection information, Obtaining second scheduling information in the PDCCH carried by the ith second downlink resource, where the second scheduling information includes second time-frequency position indication information, the type of the second scheduling information, and the first scheduling information The same type, 2 ≤ i ≤ n, n is the number of the at least one second downlink resource, and n is a positive integer greater than or equal to 2;

Determining, according to the second time-frequency position indication information, a third target time-frequency position in the i-th second downlink resource;

The target communication data is received at the third target time-frequency location.
The apparatus according to claim 25, wherein the retransmission frequency indication information is configured by a physical layer of the base station or a radio downlink resource control layer.
The apparatus according to claim 25, wherein the retransmission number indication information is configured by the base station according to a probability that the user equipment UE correctly receives information a single time.
An information transmission device, characterized in that the device comprises:

a generating module, configured to generate first scheduling information, where the first scheduling information is used to indicate that the first downlink resource and the at least one second downlink resource carry the same target communication data;

a sending module, configured to send the first scheduling information and the target communication data by using the first downlink resource, and send the target communication data by using the at least one second downlink resource, so that the user equipment UE is based on The first scheduling information sequentially receives the target communication data on the first downlink resource and the at least one second downlink resource.
The device according to claim 33, wherein the first downlink resource and the second downlink resource are both sub-slot resources, or the first downlink resource and the second downlink resource All are time slot resources.
The device according to claim 33, wherein the first scheduling information comprises first time-frequency position indication information, and the first time-frequency position indication information is used to indicate that the first downlink resource is carried in a first target time-frequency location of the target communication data.
The apparatus according to claim 35, wherein the first time-frequency position indication information is further used to indicate a second target time-frequency position in which the target communication data is carried in each of the second downlink resources.
The apparatus according to claim 33, wherein the first scheduling information includes retransmission times indication information, and the retransmission number indication information is used to indicate the number of the at least one second downlink resource, so that The UE determines a time-frequency location of the at least one second downlink resource according to the number of the at least one second downlink resource and the time-frequency location of the first downlink resource.
The apparatus according to claim 37, wherein the retransmission number indication information is configured by a physical layer of a base station or a radio downlink resource control layer.
The apparatus according to claim 37, wherein the retransmission number indication information is configured by the base station according to a probability that the UE correctly receives the information in a single time.
The apparatus according to claim 33, wherein the first scheduling information is downlink control information DCI or short downlink control information sDCI;

The second downlink scheduling information is carried in the physical downlink control channel PDCCH that is carried by the second downlink resource, and the type of the second scheduling information is the same as the type of the first scheduling information, where the first scheduling information is The blind detection information is the same as the blind detection information corresponding to the second scheduling information;

The second scheduling information includes second time-frequency position indication information, where the second time-frequency position indication information is used to indicate a third target time-frequency position in which the target communication data is carried in the second downlink resource.
A data transmission device, comprising:

processor;

a memory for storing instructions executable by the processor;

Wherein the processor is configured to:

Receiving first scheduling information that is sent by the base station by using the first downlink resource, where the first scheduling information is used to indicate that the first downlink resource and the at least one second downlink resource carry the same target communication data;

Receiving the target communication data on the first downlink resource based on the first scheduling information;

And when the target communication data is not correctly received on the first downlink resource, the target communication data is sequentially received on the at least one second downlink resource based on the first scheduling information.
A data transmission device, comprising:

processor;

a memory for storing instructions executable by the processor;

Wherein the processor is configured to:

Generating first scheduling information, where the first scheduling information is used to indicate that the first downlink resource and the at least one second downlink resource carry the same target communication data;

Transmitting the first scheduling information and the target communication data by using the first downlink resource, and sending the target communication data by using the at least one second downlink resource, so that the user equipment UE is based on the first scheduling The information sequentially receives the target communication data on the first downlink resource and the at least one second downlink resource.
A data transmission system, characterized in that the data transmission system comprises the data transmission device according to any one of claims 21 to 32 and the data transmission device according to any one of claims 33 to 40.
A computer readable storage medium, wherein the computer readable storage medium stores a computer program, and the stored computer program is executable by the processing component to implement the data according to any one of claims 1 to 12. Transmission method; or,

The stored computer program can be implemented by the processing component to implement the data transmission method according to any one of claims 13 to 20.