WO2018126410A1

WO2018126410A1 - Data transmission method, and terminal and network device

Info

Publication number: WO2018126410A1
Application number: PCT/CN2017/070322
Authority: WO
Inventors: 李军; 焦淑蓉; 花梦
Original assignee: 华为技术有限公司
Priority date: 2017-01-05
Filing date: 2017-01-05
Publication date: 2018-07-12
Also published as: CN109964517A

Abstract

Provided are a data transmission method, and a terminal and a network device. The method comprises: sending first uplink data to a network device in a scheduling-free manner; receiving feedback information fed back according to the first uplink data of the network device; if the feedback information is first transmission feedback information, determining a first sending manner according to the condition that scheduling information is received from the network device within a pre-set first time period; and sending second uplink data in the first sending manner. With the method, terminal and network device provided in the embodiments of the present application, after receiving the uplink data sent by the terminal device, the network device performs uplink scheduling on the terminal device as required, thereby reducing the number of terminals to send uplink data in the scheduling-free manner and reducing the possibility of collisions occurring again during uplink data transmission.

Description

Data transmission method and terminal and network equipment

Technical field

The present application relates to the field of wireless communications, and in particular, to a data transmission method, a terminal, and a network device.

Background technique

In a wireless communication system, uplink data transmission is usually performed between a terminal and a network device based on a grant-based manner. When the uplink data needs to be sent, the terminal first sends a service request (SR) information to the network device to request the network device to allocate time-frequency resources for uplink data transmission; after receiving the SR, the network device sends the The terminal sends a grant, and the grant is used to indicate the time-frequency resource allocated by the network device to the terminal. After receiving the grant, the terminal sends the uplink data by using the time-frequency resource indicated by the grant.

In order to reduce the delay of uplink data transmission, the terminal and the network device may also perform uplink data transmission in a grand-free manner. That is, when the terminal needs to send uplink data, it can directly select the available time-frequency resources for uplink data transmission, and does not need to request the network device to perform uplink scheduling, thereby reducing the transmission delay caused by the scheduling process. When the uplink data is sent in the unscheduled mode, the time-frequency resources used for uplink data transmission are selected by the network device. Therefore, when multiple terminals use the unscheduled mode for uplink data transmission, multiple different The terminal selects the same time-frequency resource to send uplink data. Different terminals use the same time-frequency resources to send uplink data, which will cause collisions between uplink data transmissions of different terminals. When the possibility of collision between uplink data transmissions of different terminals is high, uplink data transmission will be seriously affected. Reliability.

Summary of the invention

The application provides a data transmission method and a terminal and a network device to reduce the possibility of collision between uplink data transmissions of different terminals.

In a first aspect, the present application provides a data transmission method, including: sending a first uplink data to a network device by using a scheduling-free manner; and receiving feedback information of the network device according to the first uplink data feedback; The feedback information is the first transmission feedback information, according to the network from the network within a preset first time period. The first transmission mode is determined by the device receiving the authorization scheduling information, where the first transmission feedback information is information that is detected after the network device detects the first uplink data and successfully receives the first uplink data; The first transmission mode transmits the second uplink data.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the first sending manner is determined according to a situation in which the authorization scheduling information is received from the network device in a preset first time period, including: Receiving the authorization scheduling information from the network device in the first time period, the sending manner indicated by the authorization scheduling information is used as the first sending manner; or, if there is no secondary in the first time period When the network device receives the authorization scheduling information, the unscheduled transmission mode is used as the first sending manner.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the method further includes: if the feedback information is the second transmission feedback information, according to the preset Determining, by the network device, the second scheduling mode, where the second transmission mode is that the network device detects the first uplink data but fails to receive the Information fed back after the first uplink data; retransmitting the first uplink data or transmitting the second uplink data by using the second sending manner.

With reference to the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, determining, by using the network device that the authorization scheduling information is received in the preset second time period, determining the second The sending manner includes: if the authorization scheduling information is received from the network device in the second time period, the sending manner indicated by the authorization scheduling information is used as the second sending manner; or, if If the authorization scheduling information is not received from the network device in the second time period, the unscheduled transmission mode is used as the second transmission mode.

With reference to the first aspect or the first possible implementation manner of the first aspect, in the fourth possible implementation manner of the first aspect, if the feedback information is the second transmission feedback information, The second transmission mode, where the second transmission feedback information is information that is detected after the network device detects the first uplink data but fails to receive the first uplink data, and adopts the second sending manner. Retransmitting the first uplink data or transmitting the second uplink data.

With reference to the first aspect, or any one of the first to fourth possible implementation manners of the first aspect, in a fifth possible implementation manner of the first aspect, receiving, by the network device, feedback according to the first uplink data feedback The information includes: receiving the feedback information in a first receiving time window, where the first receiving time window corresponds to a sending time of the first uplink data.

In a second aspect, the present application provides another data transmission method, where the method includes: sending a first uplink data to a network device by using a scheduling-free manner; and receiving a feedback signal of the network device according to the first uplink data feedback. If the feedback information includes the first transmission feedback information and the first indication information, determining a first sending manner according to the first indication information, where the first transmission feedback information is that the network device detects the The information fed back after the uplink data is successfully received and the second uplink data is sent by using the first sending manner.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the determining, by the first indication information, the first sending manner, includes: when the sending manner indicated by the first indication information is a scheduling-free mode, The scheduling mode is used as the first sending mode; or when the sending mode indicated by the first indication information is the authorized scheduling mode, the scheduling authorization scheduling is received from the network device according to the preset first time period. In the case of information, the first transmission mode is determined.

With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the receiving, by the network device, the scheduling authorization scheduling information, in the preset first time period, includes: If the authorization scheduling information is received from the network device in the first time period, the sending manner indicated by the authorization scheduling information is used as the first sending manner; if there is no slave in the first time period When the network device receives the authorization scheduling information, the unscheduled transmission mode is used as the first sending manner.

With reference to the second aspect or the first or the second possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the method further includes: if the feedback information includes the second transmission feedback information and the second indication information Determining, according to the second indication information, a second sending manner, where the second transmission feedback information is fed back after the network device detects the first uplink data but fails to successfully receive the first uplink data. And retransmitting the first uplink data or transmitting the second uplink data by using the second sending manner.

With reference to the third possible implementation manner of the second aspect, in a fourth possible implementation manner of the second aspect, the determining, by the second indication information, the second sending manner, the sending, by the second indication information, When the mode is the scheduling-free mode, the scheduling mode is used as the second sending mode; or when the sending mode indicated by the second indication information is the authorized scheduling mode, according to the preset second time period The network device receives the scheduling authorization scheduling information, and determines the second sending manner.

With reference to the fourth possible implementation manner of the second aspect, in a fifth possible implementation manner of the second aspect, the receiving, by the network device, the scheduling authorization scheduling information, in the preset second time period, includes: If the authorization scheduling information is received from the network device in the second time period, the sending manner indicated by the authorization scheduling information is used as the second sending manner; if there is no slave in the second time period When the network device receives the authorization scheduling information, the unscheduled transmission mode is used as the second sending manner.

Combining the second aspect or the first or second possible implementation of the second aspect, the sixth possible aspect in the second aspect In an implementation manner, if the feedback information is the second transmission feedback information, the unscheduled transmission mode is used as the first transmission mode, and the second transmission feedback information is that the network device detects the first uplink data but The information fed back after the first uplink data is not successfully received; the second uplink data is sent by using the first sending manner.

With reference to the second aspect or the first or the sixth possible implementation manner of the second aspect, in the seventh possible implementation manner of the second aspect, the receiving, by the network device, the feedback information according to the first uplink data feedback includes: Receiving the feedback information in a first receiving time window, where the first receiving time window corresponds to a sending time of the first uplink data.

In a third aspect, the present application provides another data transmission method, including: sending a first uplink data to a network device by using a scheduling-free manner; and determining a second receiving time corresponding to a sending moment of the first uplink data. a first transmission mode is determined according to a situation in which the feedback information is received from the network device in the second receiving time window; and the second uplink data is sent by using the first sending mode.

With reference to the third aspect, in a first possible implementation manner of the third aspect, the first sending manner is determined according to a situation that the feedback information is received from the network device in the second receiving time window, including: In the second receiving time window, when the first transmission feedback information or the second transmission feedback information is received from the network device, and the authorization scheduling information is not received from the network device, determining that the unscheduled transmission mode is the first sending manner Or, if the first transmission feedback information or the second transmission feedback information is not received from the network device in the second reception time window, but the authorization scheduling information is received from the network device, determining the transmission of the authorization scheduling information indication The mode is the first sending mode; or, if the first transmission feedback information or the second transmission feedback information is received from the network device in the second receiving time window, and the authorization scheduling information is received from the network device, Then determining the transmission mode indicated by the authorization scheduling information is the first transmission mode; or if the second reception time window is If the first transmission feedback information or the second transmission feedback information is not received from the network device, and the authorization scheduling information is not received from the network device, determining that the unscheduled transmission mode is the first transmission mode; The first transmission feedback information is information that is detected after the network device detects the first uplink data and successfully receives the first uplink data; and the second transmission feedback information is that the network device detects the The information fed back after an uplink data but fails to receive the first uplink data.

In a fourth aspect, the present application provides another data transmission method, including: receiving first uplink data; and if it is possible to determine a terminal that sends the first uplink data, and successfully decoding the first uplink data, Determining whether to send the authorization scheduling information to the terminal device in a preset second preset time period, so that the terminal determines to retransmit the first uplink data according to the situation that the authorization scheduling information is received within the preset first time period. Time And adopting a second sending manner; and sending the first transmission feedback information to the terminal, where the first transmission feedback information is used to indicate that the first uplink data has been correctly received.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the method further includes: sending the authorization scheduling information to the terminal in a preset first time period.

With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the method further includes: if the terminal that sends the first uplink data is determined, but is not successfully decoded Determining, by the first uplink data, whether the authorization scheduling information is sent to the terminal device in a preset second preset time period, so that the terminal according to the received authorization scheduling information in the preset second time period And determining, by the second transmission mode, the second transmission mode is used to retransmit the first uplink data, and sending the second transmission feedback information to the terminal, where the second transmission feedback information is used to indicate that the second uplink data is not Receive correctly.

With reference to the second possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect, the authorization scheduling information is sent to the terminal in a preset second time period.

In a fifth aspect, the present application provides another data transmission method, including: receiving first uplink data; and if it is possible to determine a terminal that sends the first uplink data, and successfully decoding the first uplink data, Sending the first transmission feedback information and the first indication to the terminal, where the first transmission feedback information is used to indicate that the first uplink data has been correctly received, and the first indication information is used to instruct the terminal to send the second uplink. The first method of transmission used in data.

With reference to the fifth aspect, in a first possible implementation manner of the fifth aspect, the sending manner indicated by the first indication information is a scheduling mode or an authorized scheduling mode.

With reference to the fifth aspect, in a second possible implementation manner of the fifth aspect, the method further includes: when the sending manner indicated by the first indication information is an authorized scheduling manner, to the terminal in a preset first time period Send authorization scheduling information.

With reference to the fifth aspect, or any one of the first or the second possible implementation manners of the fifth aspect, in a third possible implementation manner of the fifth aspect, the method further includes: if the terminal that sends the first uplink data can be determined If the first uplink data is not successfully decoded, the second transmission feedback information and the second indication information are sent to the terminal, where the second transmission feedback information is used to indicate that the second uplink data is not The second indication information is used to indicate that the terminal retransmits the first uplink data or sends the second uplink data.

With reference to the third possible implementation manner of the fifth aspect, in a fourth possible implementation manner of the fifth aspect, the sending manner indicated by the second indication information is a scheduling mode or an authorized scheduling mode.

With reference to the fourth possible implementation manner of the fifth aspect, in a fifth possible implementation manner of the fifth aspect, when the sending manner indicated by the second indication information is an authorized scheduling manner, in a preset second time period The authorization scheduling information is sent to the terminal.

In a sixth aspect, the present application provides another data transmission method, the method includes: receiving first uplink data; and if determining, by using a sending terminal that sends the first uplink data, decoding, according to the first uplink data, In the case, the feedback information is sent to the terminal in a preset transmission time window, where the feedback information is used to indicate that the terminal sends the second uplink data transmission manner in the preset second time period.

With reference to the sixth aspect, in a first possible implementation manner of the sixth aspect, the feedback information is sent to the terminal that sends the first uplink data in the sending time window according to the receiving status of the first uplink data, The method includes: if the first uplink data can be correctly decoded, sending feedback information including the first transmission feedback information and the first indication information; if the first uplink data is not correctly decoded, transmitting the second transmission feedback information And the feedback information of the second indication information, where the first transmission feedback information is used to indicate that the first uplink data has been correctly received, and the first indication information is used to indicate that the terminal uses the second uplink data a sending mode, the second transmitting feedback information is used to indicate that the second uplink data is not correctly received, and the second indication information is used to indicate that the terminal retransmits the first uplink data or sends the second uplink data The second transmission method used.

With reference to the first possible implementation manner of the sixth aspect, in a second possible implementation manner of the sixth aspect, the sending manner indicated by the first indication information includes an unscheduled mode or an authorized scheduling manner; The sending mode of the indication includes an unscheduled mode or an authorized scheduling mode.

With reference to the second possible implementation manner of the sixth aspect, in a third possible implementation manner of the sixth aspect, the method further includes: when the first indication information indicates that the sending manner is an authorized scheduling manner or the second indication information When the indication transmission mode is the authorization scheduling mode, the authorization scheduling information is sent to the terminal in the sending time window.

In a seventh aspect, the present application further provides a terminal, where the terminal device may include a sending unit, a receiving unit, a processing unit, and the like, for performing the method steps in the foregoing implementation manners of the first to third aspects. The sending unit may be implemented by a transceiver of the terminal, or may be implemented by a processor of the terminal; the processing unit may be implemented by the processor; Implemented by the transceiver of the terminal or by the processor of the terminal.

In an eighth aspect, the present application further provides a network device, where the network device device may include a sending unit, a receiving unit, a processing unit, and the like for performing the method steps in the foregoing implementation manners of the first to third aspects. The sending unit may be implemented by a transceiver of the network device, or may be implemented by a processor of the network device; the processing unit may be implemented by the processor; the receiving unit The transceiver implementation may also be implemented by a transceiver of the network device or by a processor of the network device.

In a ninth aspect, the present application further provides a storage medium, where the computer storage medium can store a program, and when executed, the program can implement all or part of the method steps in each embodiment of the data transmission method of the present application.

With the method, the terminal, and the network device provided by the embodiment of the present application, after receiving the uplink data sent by the terminal device, the network device performs uplink scheduling on the terminal device as needed, thereby reducing the terminal that sends the uplink data in the unscheduled manner. The number, which reduces the possibility of collisions in the uplink data transmission process.

DRAWINGS

In order to more clearly illustrate the technical solutions of the present application, the drawings used in the embodiments will be briefly described below. Obviously, for those skilled in the art, without any creative labor, Other drawings can also be obtained from these figures.

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

2 is a schematic flowchart of another embodiment of a data transmission method according to the present application;

3 is a schematic flowchart of another embodiment of a data transmission method according to the present application;

4 is a schematic flowchart of another embodiment of a data transmission method according to the present application;

FIG. 5 is a schematic flowchart diagram of another embodiment of a data transmission method according to the present application;

6 is a schematic flowchart of another embodiment of a data transmission method according to the present application;

7 is a schematic structural diagram of an embodiment of a terminal according to the present application;

8 is a schematic structural diagram of an embodiment of a network device according to the present application;

9 is a schematic structural diagram of another embodiment of a terminal according to the present application;

FIG. 10 is a schematic structural diagram of another embodiment of a network device according to the present application;

detailed description

In order to improve the reliability of the data transmission, after the collision between the uplink data transmissions of different terminals, the network device and the terminal may adopt a feedback retransmission mechanism to perform uplink data retransmission. For example, if the network device can complete the uplink data for decoding, the network device can send an acknowledgement to the terminal that sends the uplink data, and the acknowledgement indicates that the uplink data has been correctly received by the network device. After receiving the positive response, the terminal may start to use the grant-free mode for the next uplink data transmission.

If the network device can determine the terminal that sends the uplink data by decoding the uplink data, but the data content of the uplink data is not correctly decoded, the network device may send a negative response to the terminal, and the negative response indicates the uplink data. Not yet received correctly by the network device. After receiving the negative acknowledgement, the terminal may retransmit the uplink data in a grand-free manner to improve the reliability of the uplink data transmission.

However, when there are many terminals, if multiple terminals receive a negative response in the same time period, or if multiple devices use the grant-free mode for the next uplink data transmission, multiple terminals will appear again. The case of uplink data transmission in the same time period. In this case, the uplink data transmission process still has a large possibility of collision, which still affects the reliability of the uplink data transmission and affects the transmission efficiency of the uplink data.

In order to reduce the possibility of collision in the uplink data transmission process, the network device may send different feedback information according to the transmission and reception status of the uplink data, and the terminal may determine, according to the received feedback information, that the uplink transmission is used again. How to send.

It should be noted that, in various embodiments of the present application, the feedback information may be the first transmission feedback information or the second transmission feedback information, where the first transmission feedback information is that the network device detects the first uplink data and The information fed back after the first uplink data is successfully received is used to indicate that the first uplink data has been correctly received. The second transmission feedback information is that the network device detects the first uplink data but fails to succeed. The information fed back after receiving the first uplink data is used to indicate that the first uplink data is not correctly received.

Since the network device may need to use the same time-frequency resource to send feedback information to different terminals, the feedback information may carry the identity of the terminal. For example, the first transmission feedback information may be an acknowledgement (ACK) carrying the identity of the terminal; the second transmission feedback information may be a negative acknowledgement (Negative acknowledgement, referred to as NACK) ).

1 is a schematic flowchart of an embodiment of a data sending method according to the present application.

Step 101: The terminal sends the first uplink data to the network device in a scheduling-free manner.

When the terminal needs to perform the first uplink data transmission, the terminal may send the first uplink data to the network device in a scheduling-free manner. That is, when the terminal needs to send the first uplink data, the terminal may directly select the available radio resource to send the data packet carrying the first uplink data, without waiting for the network device to send the uplink scheduling information. The available radio resources may be pre-assigned to the terminal by the network device.

Since the uplink data transmission is not scheduled by the network device, in the data packet sent by the terminal, in addition to the first uplink data, the identity of the terminal needs to be carried, so that the network device receives the data identifier. After the first uplink data, it is determined that the first uplink data is from the terminal.

The identity of the terminal may be carried by a multiple access signature (MA signature), where the MA signature may be a preamble, a demodulation reference signal (DMRS), or other reference. Reference signal (referred to as RS).

For example, if the network device allocates the preamble sequence to the terminal as the first preamble sequence, the terminal may send the preamble sequence as the first preamble sequence and the load is the first uplink data when the first uplink data is sent by the terminal. Packet. Therefore, the network device can learn, according to the first preamble sequence, that the first uplink data is from the terminal.

Step 102: The terminal receives feedback information that is sent by the network device according to the first uplink data.

Since the available radio resources allocated by the network device to different terminals may be the same or all of the same, if the terminal sends the uplink data in the unscheduled manner, multiple uplink terminals may use the same time-frequency resource for the uplink data transmission. If other terminals and the terminal use the same time-frequency resource for uplink data transmission, the uplink data sent by other terminals may collide with the uplink data sent by the terminal. The network device may send different feedback information according to the case of decoding the first uplink data. Correspondingly, the terminal may receive the feedback information fed back by the network device according to the decoding status of the first uplink data. Depending on the degree of collision, the network device decodes the first uplink data differently, and the network device sends feedback information to the terminal.

If the network device can not only decode the identity of the terminal, but also can decode the first uplink data, that is, the uplink data transmission of the terminal does not collide with the uplink data transmission of other terminals. Then, the feedback information that the network device can send to the terminal may be the first transmission feedback information.

If the network device can decode the identity of the terminal but cannot decode the first uplink data, that is, the uplink data transmission of the terminal partially collides with the uplink data transmission of other terminals. Then because of It is sufficient to know that the terminal sends the first uplink data, but the first uplink data is not correctly received. Therefore, the feedback information sent by the network device to the terminal may be the second transmission feedback information.

If the network device can neither decode the identity of the terminal nor decode the first uplink data, that is, the uplink data transmission of the terminal completely collides with the uplink data transmission of other terminals. Then, since it is impossible to determine which terminal to send feedback information, the network device may not send any feedback information, so as not to affect the data transmission of other network devices.

In addition to the feedback information, if the terminal further needs to send the second uplink data or retransmit the first uplink data, and there is a radio resource available for the second uplink data transmission or the first uplink data retransmission, the network The device can also send authorization scheduling information to the terminal. When the authorization scheduling information needs to be sent, the network device may jointly send the feedback information and the authorization scheduling information, or may separately send the feedback information and the authorization scheduling information, and the application does not Make a limit.

Since the sending manner of the first uplink data is a scheduling-free manner, the terminal may know whether the feedback information is received, so the terminal may receive the feedback information only in the first receiving time window, where the first receiving time window is The transmission time of the first uplink data corresponds to. Generally, the time difference between the start time of the first receiving time window and the transmission completion time of the first uplink data is a fixed value, and the length of the first receiving time window is a predetermined length.

Step 103: If the feedback information is the first transmission feedback information, determine the first transmission mode according to the situation that the authorization scheduling information is received from the network device within a preset first time period.

If the feedback information is the first transmission feedback information, it indicates that the first uplink data has been correctly received by the network device. If the terminal further needs to send the second uplink data, the first used when sending the second uplink data may be determined according to the situation that the authorization scheduling information is received from the network device within a preset first time period. sending method.

Optionally, if the authorization scheduling information is received from the network device in the first time period, the terminal may use the sending manner indicated by the authorization scheduling information as the first sending manner; If the authorization scheduling information is not received from the network device in the first time period, the terminal may use the unscheduled transmission mode as the first sending mode.

The starting time of the first time period may be determined by the sending time of the first uplink data, or by the receiving time of the transmission feedback information. For example, the start time of the first time period may be separated from the time when the first uplink data is transmitted by a predetermined time; or the start time of the first time period may be The time interval at which the feedback information is received is separated by a predetermined duration; the duration of the first time period may be a predetermined length agreed by the protocol, or may be configured by the network device to the terminal.

Step 104: Send the second uplink data by using the first sending manner.

After the first sending mode is determined, the terminal may send the second uplink data by using the first sending manner. For example, if the first sending mode is the sending mode indicated by the authorization scheduling information, the terminal may send the second uplink data by using a sending manner indicated by the authorization scheduling information; if the first sending mode is In the scheduling mode, the terminal can send the second uplink data in a scheduling-free manner.

Step 105: If the feedback information is the second transmission feedback information, determine the second transmission mode according to the situation that the authorization scheduling information is received from the network device within a preset second time period.

If the feedback information is the second transmission feedback information, it indicates that the first uplink data has been correctly detected by the network device but is not correctly received, and the terminal further needs to retransmit the first uplink data. In this case, the terminal may determine a second sending manner for retransmitting the first uplink data according to the situation that the authorization scheduling information is received from the network device within a preset first time period.

Optionally, if the authorization scheduling information is received from the network device in the second time period, the sending manner indicated by the authorization scheduling information is used as the second sending manner; If the authorization scheduling information is not received from the network device in the segment, the unscheduled transmission mode is used as the second transmission mode.

Alternatively, after receiving the second transmission feedback information, the terminal may directly use the unscheduled transmission mode as the second transmission mode.

The start time of the second time period may be determined by the sending time of the first uplink data, or by the receiving time of the transmission feedback information. For example, the start time of the second time period may be separated from the time when the first uplink data is transmitted by a predetermined time; or the start time of the second time period may be the time when the feedback information is received. The duration of the second time period may be a predetermined length agreed by the protocol, or may be configured by the network device to the terminal.

Step 106: Retransmit the first uplink data or send the second uplink data by using the second sending manner.

After the second sending mode is determined, the terminal may send the retransmission data of the first uplink data by using the second sending manner. If the number of retransmissions of the first uplink data exceeds the limit, the terminal may send by using the second sending manner. Second uplink data. For example, if the second sending mode is the sending mode indicated by the authorization scheduling information, the terminal may resend the first uplink by using a sending manner indicated by the authorized scheduling information. Data; if the second sending mode is the unscheduled mode, the terminal may resend the first uplink data in a scheduling-free manner.

With this embodiment, the terminal can reduce the number of times the uplink data is sent in the unscheduled manner, thereby reducing the possibility of collision again during the uplink data transmission.

In addition to the first transmission feedback information or the second transmission feedback information, the network device may further send indication information to the terminal, so that the terminal may determine, according to the indication information, when the second uplink data is sent. The first transmission mode used or the second transmission mode for retransmitting the first uplink data.

Referring to FIG. 2, it is a schematic flowchart of another embodiment of a data sending method according to the present application.

Step 201: The terminal sends the first uplink data to the network device in a scheduling-free manner.

Step 202: The terminal receives feedback information that is sent by the network device according to the first uplink data.

If the uplink data transmission of the terminal does not collide with the uplink data transmission of the other terminal, the feedback information may include the first transmission feedback information and the first indication information. The sending manner indicated by the first indication information may be an unscheduled manner or an authorized scheduling manner.

If the uplink data transmission of the terminal partially collides with the uplink data transmission of the other terminal, the feedback information may include the second transmission feedback information and the second indication information. The sending manner indicated by the second indication information may be an unscheduled manner or an authorized scheduling manner.

If the uplink data transmission of the terminal completely collides with the uplink data transmission of other terminals. The network device can also not send any feedback information, so as not to affect the data transmission of other network devices.

The network device may combine to send the first transmission feedback information and the first indication information, or may separately send the first transmission feedback information and the first indication information. Similarly, the network device may combine and send the second transmission feedback information. And the second indication information, or the second transmission feedback information and the second indication information may be separately sent, which is not limited in this application.

Step 203: If the feedback information includes the first transmission feedback information and the first indication information, determine the first sending manner according to the first indication information.

When the sending manner indicated by the first indication information is the unscheduled mode, the terminal may use the unscheduled mode as the first sending mode; when the sending mode indicated by the first indication information is the authorized scheduling mode, the terminal The first sending manner may be determined according to a situation in which scheduling authorization scheduling information is received from the network device within a preset first time period.

If the authorization scheduling information is received from the network device in the first time period, the terminal may use the sending mode indicated by the authorization scheduling information as the first sending mode; if in the first time period The terminal does not receive the authorization scheduling information from the network device, and the terminal may use the unscheduled transmission mode as the first sending mode.

Step 204: Send the second uplink data by using the first sending manner.

Step 205: If the feedback information includes the second transmission feedback information and the second indication information, determine the second sending manner according to the second indication information.

When the sending mode indicated by the second indication information is the unscheduled mode, the terminal may use the unscheduled mode as the second sending mode; when the sending mode indicated by the second indication information is the authorized scheduling mode, the terminal The second sending manner may be determined according to a situation in which scheduling authorization scheduling information is received from the network device within a preset second time period.

Alternatively, the terminal may also receive the second transmission feedback information, and directly use the unscheduled transmission mode as the second transmission mode.

If the authorization scheduling information is received from the network device in the second time period, the terminal may use the sending mode indicated by the authorization scheduling information as the second sending mode; if in the second time period The terminal does not receive the authorization scheduling information from the network device, and the terminal may use the unscheduled transmission mode as the second sending mode.

If the terminal does not receive the first transmission feedback information and the first indication information, and does not receive the second transmission feedback information and the second indication information, the unscheduled transmission mode may be directly used as the second sending. the way.

Step 206: Retransmit the first uplink data or send the second uplink data by using the second sending manner.

After the second sending mode is determined, the terminal may send the retransmission data of the first uplink data or send the second uplink data by using the second sending manner. For example, if the second sending mode is the sending mode indicated by the authorization scheduling information, the terminal may resend the sending mode indicated by the authorization scheduling information. The first uplink data is used; if the second sending mode is the unscheduled mode, the terminal may resend the first uplink data in a scheduling-free manner.

The network device may not send any feedback information when the uplink data transmission of the terminal completely collides with the uplink data transmission of other terminals. Therefore, the terminal may also determine a transmission mode when the uplink data is retransmitted according to the situation that the feedback information is received within a certain period of time after the first uplink data transmission is completed.

Referring to FIG. 3, it is a schematic flowchart of another embodiment of a data sending method according to the present application.

Step 301: The terminal sends the first uplink data to the network device in a scheduling-free manner.

Step 302: The terminal determines a transmission time window corresponding to the transmission time of the first uplink data.

The starting time of the sending time window may be determined by the sending time of the first uplink data. For example, the start time of the transmission time window may be separated from the time when the first uplink data is transmitted by a predetermined time. The duration of the sending time window may be a predetermined length agreed by the protocol, or may be configured by the network device to the terminal.

Step 303: The terminal determines, according to a situation that the feedback information is received from the network device in the sending time window, the first sending manner.

Optionally, if the first transmission feedback information or the second transmission feedback information is received from the network device in the sending time window, and the authorization scheduling information is not received from the network device, determining that the unscheduled transmission mode is The first transmission method is described.

Optionally, if the first transmission feedback information or the second transmission feedback information is not received from the network device in the sending time window, but the authorization scheduling information is received from the network device, determining the sending manner of the authorization scheduling information indication For the first transmission mode.

Optionally, if the first transmission feedback information or the second transmission feedback information is received from the network device in the sending time window, and the authorization scheduling information is received from the network device, determining the sending manner of the authorization scheduling information indication For the first transmission mode.

Optionally, if the first transmission feedback information or the second transmission feedback information is not received from the network device, and the authorization scheduling information is not received from the network device, the unscheduled transmission mode is determined. For the first transmission mode.

Step 304: The terminal sends the second uplink data by using the first sending manner.

The second uplink data may be retransmission data of the first uplink data, or may be other uplink data except the retransmission data of the first uplink data, for example, the second uplink data in the foregoing embodiment. E.g, If the terminal receives the second transmission feedback information, the second uplink data may be the retransmission data of the first uplink data; if the terminal receives the first transmission feedback information, the second uplink data may be the second uplink. data.

The application is further described below from the network device side.

Referring to FIG. 4, it is a schematic flowchart of another embodiment of a data sending method according to the present application.

Step 401: Receive first uplink data.

Step 402: If the terminal that sends the first uplink data can be determined, and the first uplink data can be successfully decoded, the first transmission feedback information is sent to the terminal.

In addition to sending the first feedback information, the network device may further determine whether to send to the terminal device within a preset first preset time period according to whether there is a radio resource available for uplink data transmission and whether there is a scheduling requirement. Send authorization scheduling information.

If the terminal that sends the first uplink data can be determined, and the first uplink data can be successfully decoded, the network device can also send the authorization scheduling information to the terminal within a preset first time period, so that the terminal can And transmitting second uplink data according to the scheduling of the authorization scheduling information.

The starting time of the first time period may be determined by the sending time of the first uplink data, or by the receiving time of the transmission feedback information. For example, the start time of the first time period may be separated from the time when the first uplink data is transmitted by a predetermined time; or the start time of the first time period may be the time when the feedback information is received. The duration of the first time period may be a predetermined length agreed by the protocol, or may be configured by the network device to the terminal. It should be noted that the first time period and the first time period may be the same time period or different time periods.

Step 403: If the terminal that sends the first uplink data can be determined but fails to successfully decode the first uplink data, send the second transmission feedback information to the terminal.

In addition to sending the second feedback information, the network device may further determine whether to send to the terminal device within a preset second preset time period according to whether there is a radio resource available for uplink data transmission, whether there is a scheduling requirement, or the like. Send authorization scheduling information.

If the terminal that sends the first uplink data is determined but fails to successfully decode the first uplink data, the network device may further send the authorization scheduling information to the terminal within a preset second time period, thereby enabling the terminal to The uplink data may be retransmitted according to the scheduling of the authorization scheduling information.

The start time of the second time period may be determined by the sending time of the first uplink data, or by the receiving time of the transmission feedback information. For example, the start time of the second time period may be separated from the time when the first uplink data is transmitted by a predetermined time; or the start time of the second time period may be the time when the feedback information is received. The duration of the second time period may be a predetermined length agreed by the protocol, or may be configured by the network device to the terminal. It should be noted that the second time period and the second time period may be the same time period or different time periods.

Referring to FIG. 5, it is a schematic flowchart of another embodiment of a data sending method according to the present application.

Step 501: The network device receives the first uplink data.

Step 502: If the terminal that sends the first uplink data is determined, and the first uplink data can be successfully decoded, the network device sends the first transmission feedback information and the first indication information to the terminal.

In addition to sending the first feedback information and the first indication information, the network device may further determine whether the second preset is preset according to whether there is a radio resource available for uplink data transmission and whether there is a scheduling requirement. The authorization scheduling information is sent to the terminal device within a time period.

When the sending mode indicated by the first indication information is the authorized scheduling mode, the device sends the authorization scheduling information to the terminal in a preset first time period, so that the terminal can send the second uplink according to the scheduling of the authorized scheduling information. data.

Step 503: If the network device can determine the terminal that sends the first uplink data, but fails to successfully decode the first uplink data, send the second transmission feedback information and the second indication information to the terminal, where The second transmission feedback information is used to indicate that the second uplink data is not correctly received, and the second indication information is used to indicate that the terminal retransmits the first uplink data or uses the second uplink data. sending method. The sending manner indicated by the second indication information may also be a scheduling mode or an authorized scheduling mode.

And when the sending manner indicated by the second indication information is an authorized scheduling mode, sending, to the terminal, the authorization scheduling information in a preset second time period, so that the terminal may retransmit the according to the scheduling of the authorized scheduling information. Upstream data.

FIG. 6 is a schematic flowchart diagram of another embodiment of a data sending method according to the present application.

Step 601: The network device receives the first uplink data.

Step 602: If the sending terminal that sends the first uplink data is determined, the network device sends feedback information to the terminal in a preset sending time window according to the case of decoding the first uplink data, where The feedback information is used to indicate that the terminal sends the sending manner of the second uplink data in the preset second time period.

If the first uplink data can be correctly decoded, the network device may send feedback information including the first transmission feedback information and the first indication information; if the first uplink data is not correctly decoded, the network device may send The feedback information including the second transmission feedback information and the second indication information.

The sending manner indicated by the first indication information may include an unscheduled manner or an authorized scheduling manner; and the sending manner indicated by the second indication information may also include an unscheduled manner or an authorized scheduling manner.

When the first indication information indicates that the transmission mode is the authorization scheduling mode or the transmission mode indicated by the second indication information is the authorization scheduling mode, the authorization scheduling information is sent to the terminal in the sending time window.

The start time of the transmission time window may be determined by the time of receiving the first uplink data. For example, the start time of the transmission time window may be separated from the time when the first uplink data is transmitted by a predetermined time. The duration of the sending time window may be a predetermined length agreed by the protocol, or may be configured by the network device to the terminal. Generally, the length of the transmission window is the same as the length of the second reception window in the foregoing embodiment, but the transmission window start time is earlier than the second reception window, and the length of time is The data transmission delay between the network device and the terminal.

Corresponding to the foregoing method, the present application also provides a terminal and a network device. The embodiments of the present application can be applied to a wireless communication system including a terminal device or a terminal device. For example, an LTE system, or other wireless communication system using various radio access technologies, for example, using code division multiple access, frequency division multiple access, time division multiple access, orthogonal frequency division multiple access, single carrier frequency division multiple access, etc. Into the technology system, the subsequent evolution system, such as the fifth generation (5G) system.

Specifically, the embodiment of the present application is applicable to data transmission between a terminal and a network device, data is transmitted between the terminal and the terminal, or data is transmitted between the network device and the network device. The terminal can be a device that provides voice and or data connectivity to the user, a handheld device with wireless connectivity, or other processing device that is connected to the wireless modem. The wireless terminal can communicate with one or more core networks via a radio access network (RAN), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a mobile terminal. The computer, for example, can be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges language and or data with the wireless access network. For example, personal communication service (PCS) telephone, cordless telephone, session initiation protocol (SIP) telephone, wireless local loop (WLL) station, personal digital assistant (personal Digital assistant, PDA for short. A wireless terminal may also be referred to as a system, a subscriber unit (SU), a subscriber station (SS), a mobile station (MS), a remote station (RS), an access point. (access Point, referred to as AP), remote terminal (RT), access terminal (AT), user terminal (UT), user agent (UA), user equipment Or user equipment (UE).

The network device involved in the embodiment of the present application may be a base station, or an access point, or may refer to a device in the access network that communicates with the wireless terminal through one or more sectors on the air interface. The base station can be used to convert the received air frame and the IP packet into a router between the wireless terminal and the rest of the access network, wherein the rest of the access network can include an Internet Protocol (IP) network. . The base station can also coordinate attribute management of the air interface. For example, the base station may be a Base Transceiver Station (BTS) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved base station (eNodeB) in LTE. The application is not limited.

FIG. 7 is a schematic structural diagram of an embodiment of a terminal according to the present application. As shown in FIG. 7, the terminal may include: a receiving unit 701, a processing unit 702, and a sending unit 703.

In an implementation manner, the sending unit 703 is configured to send the first uplink data to the network device in a non-scheduled manner, and the receiving unit 701 is configured to receive feedback information that is sent by the network device according to the first uplink data. The unit 702 is configured to determine, according to the case that the feedback information is the first transmission feedback information, the first sending manner, where the first transmission mode is determined according to a situation that the authorization scheduling information is received from the network device in a preset first time period. The feedback information is information that is sent by the network device after detecting the first uplink data and successfully receiving the first uplink data, and the sending unit 703 is configured to send the second uplink data by using the first sending manner.

Optionally, the processing unit 702 is specifically configured to: if the authorization scheduling information is received from the network device in the first time period, send the indication manner indicated by the authorization scheduling information as the first sending Alternatively, if the authorization scheduling information is not received from the network device in the first time period, the unscheduled transmission mode is used as the first transmission mode.

Optionally, the processing unit 702 is further configured to: if the feedback information is the second transmission feedback information, determine, according to a situation that the authorization scheduling information is received from the network device in a preset second time period, In the second sending mode, the second transmission feedback information is information that is sent by the network device after detecting the first uplink data but fails to receive the first uplink data. The sending unit 703 is further configured to: Retransmitting the first uplink data or transmitting the second uplink data by using the second sending manner.

Optionally, the processing unit 702 is specifically configured to: if the authorization scheduling information is received from the network device in the second time period, send the indication manner indicated by the authorization scheduling information as the second sending Or; if the authorization scheduling information is not received from the network device during the second time period, the scheduling is not sent. The delivery method is the second transmission method.

Optionally, the processing unit 702 is further configured to: if the feedback information is the second transmission feedback information, use the unscheduled transmission mode as the second transmission mode, and the second transmission feedback information is the And the information that is sent by the network device after the first uplink data is successfully received but is not successfully received; the sending unit 703 is further configured to retransmit the first uplink by using the second sending manner Data or send the second uplink data.

Optionally, the receiving unit 701 is configured to receive the feedback information in a first receiving time window, where the first receiving time window corresponds to a sending time of the first uplink data.

In another implementation manner, the sending unit 703 is configured to send the first uplink data to the network device in a non-scheduled manner, and the receiving unit 701 is configured to receive feedback information that is sent by the network device according to the first uplink data. The processing unit 702 is configured to determine, according to the first indication information, a first sending manner, where the feedback information includes the first transmission feedback information and the first indication information, where the first transmission feedback information is detected by the network device The information fed back to the first uplink data and successfully received the first uplink data; the sending unit 703 is further configured to send the second uplink data by using the first sending manner.

Optionally, the processing unit 702 is configured to: when the sending manner indicated by the first indication information is a scheduling-free mode, use the scheduling-free mode as the first sending manner; or, when the first indication is When the sending manner of the information indication is the authorized scheduling mode, the first sending manner is determined according to the situation that the scheduling authorization scheduling information is received from the network device within a preset first time period.

Optionally, the processing unit 702 is further configured to: if the authorization scheduling information is received from the network device in the first time period, send the manner indicated by the authorization scheduling information as the first sending Alternatively, if the authorization scheduling information is not received from the network device in the first time period, the unscheduled transmission mode is used as the first transmission mode.

Optionally, the processing unit 702 is further configured to: if the feedback information includes the second transmission feedback information and the second indication information, determine, according to the second indication information, a second sending manner, where the second transmission feedback The information is information that is sent by the network device after the first uplink data is detected but fails to receive the first uplink data. The sending unit 703 is further configured to use the second sending mode to retransmit the information. Decoding the first uplink data or transmitting the second uplink data.

Optionally, the processing unit 702 is specifically configured to: when the sending manner indicated by the second indication information is a scheduling-free mode, use the scheduling-free mode as the second sending manner; or, when the second indication is Information indication When the sending mode is the authorized scheduling mode, the second sending mode is determined according to the situation that the scheduling authorization scheduling information is received from the network device within a preset second time period.

Optionally, the processing unit 702 is specifically configured to: if the authorization scheduling information is received from the network device in the second time period, send the indication manner indicated by the authorization scheduling information as the second sending Alternatively, if the authorization scheduling information is not received from the network device in the second time period, the unscheduled transmission mode is used as the second transmission mode.

Optionally, the processing unit 702 is further configured to: if the feedback information is the second transmission feedback information, use the unscheduled transmission mode as the first transmission mode, and the second transmission feedback information is the negative response information; The sending unit 703 is further configured to send the second uplink data by using the first sending manner.

In a further implementation, the sending unit 703 is configured to send the first uplink data to the network device in a scheduling-free manner, and the receiving unit 701 is configured to determine a sending time window corresponding to the sending moment of the first uplink data. The processing unit 702 is configured to determine a first sending manner according to a situation that the feedback information is received from the network device in the sending time window, and the sending unit 703 is further configured to send the first sending manner by using the first sending manner. Two uplink data.

Optionally, the processing unit 702 is specifically configured to: if the receiving unit 701 receives the first transmission feedback information or the second transmission feedback information from the network device in the sending time window, and does not receive from the network device Determining the unscheduled transmission mode to the first transmission mode; or, if the receiving unit 701 is within the transmission time window, not receiving the first transmission feedback information or the second from the network device Transmitting feedback information, but receiving the authorization scheduling information from the network device, determining that the transmission mode indicated by the authorization scheduling information is the first transmission mode; or, if the receiving unit 701 is in the transmission time window, both from the network Receiving the first transmission feedback information or the second transmission feedback information, and receiving the authorization scheduling information from the network device, determining that the transmission mode indicated by the authorization scheduling information is the first sending manner; or, if the receiving unit 701 In the sending time window, neither the first transmission feedback information nor the second transmission feedback information is received from the network device. If the authorization scheduling information is not received from the network device, the first transmission mode is determined, and the first transmission feedback information is that the network device detects the first uplink data and succeeds. Information that is fed back after receiving the first uplink data; the second transmission feedback information is information that is feedback after the network device detects the first uplink data but fails to successfully receive the first uplink data.

FIG. 8 is a schematic structural diagram of an embodiment of a network device according to the present application. As shown in FIG. 8, the network device may include: a receiving unit 801, a processing unit 802, and a sending unit 803.

In an implementation manner, the receiving unit 801 is configured to receive the first uplink data, and the sending unit 803 is configured to: if the terminal that sends the first uplink data can be determined, and successfully decode the first uplink data, Sending the first transmission feedback information to the terminal, where the first transmission feedback information is used to indicate that the first uplink data has been correctly received, and is used to indicate that the terminal is in accordance with the preset first time period. The case where the network device receives the authorization scheduling information determines the first transmission mode used when transmitting the second uplink data.

Optionally, the sending unit 803 is further configured to send the authorization scheduling information to the terminal in a preset first time period.

Optionally, the sending unit 803 is further configured to: if the terminal that sends the first uplink data is determined but fails to successfully decode the first uplink data, send the second transmission feedback information to the terminal, where The second transmission feedback information is used to indicate that the second uplink data is not correctly received, and is used to indicate that the terminal determines that the terminal receives the authorization scheduling information from the network device within a preset second time period. The second transmission mode used when transmitting the first uplink data.

Optionally, the sending unit 803 is further configured to send the authorization scheduling information to the terminal in a preset second time period.

In another implementation, the receiving unit 801 is configured to receive the first uplink data, and the processing unit 802 is configured to determine whether to send the authorization scheduling information to the terminal device within a preset second preset time period, so that And determining, by the terminal, a second sending manner that is used when the first uplink data is retransmitted according to the situation that the first time data is received in the preset first time period; the sending unit 803 is configured to send the first transmission feedback to the terminal. Information, wherein the first transmission feedback information is used to indicate that the first uplink data has been correctly received.

Optionally, the sending manner indicated by the first indication information is a scheduling mode or an authorized scheduling mode.

Optionally, the sending unit 803 is further configured to: when the sending manner indicated by the first indication information is an authorized scheduling manner, send the authorization scheduling information to the terminal in a preset first time period.

Optionally, the processing unit 802 is further configured to: determine whether to send authorization scheduling information to the terminal device in a preset second preset time period, so that the terminal receives the data according to the preset second time period. The second transmission mode is used to determine the second transmission mode when the first uplink data is retransmitted; the sending unit 803 is further configured to send the second transmission feedback information to the terminal, where the second transmission The feedback information is used to indicate that the second uplink data is not correctly received.

Optionally, the sending manner indicated by the second indication information is a scheduling mode or an authorized scheduling mode.

Optionally, the sending unit 803 is further configured to: when the sending manner indicated by the second indication information is an authorized scheduling manner, send the authorization scheduling information to the terminal in a preset second time period.

In a further implementation, the receiving unit 801 is configured to receive the first uplink data, and the sending unit 803 is configured to: if the sending terminal that sends the first uplink data is determined, decode the first uplink data according to the decoding In the case of the preset transmission window, the feedback information is sent to the terminal, where the feedback information is used to indicate that the terminal sends the second uplink data in a preset second time period.

Optionally, the sending unit 803 is specifically configured to: if the first uplink data can be correctly decoded, send feedback information including the first transmission feedback information and the first indication information; or, if the first uplink data is not correctly decoded, And transmitting, by the first uplink data, feedback information that includes the second transmission feedback information and the second indication information, where the first transmission feedback information is used to indicate that the first uplink data has been correctly received, and the first indication information is used by The first transmission mode used by the terminal to transmit the second uplink data, the second transmission feedback information is used to indicate that the second uplink data is not correctly received, and the second indication information is used to instruct the terminal to retransmit the The first uplink data or the second transmission mode used when transmitting the second uplink data.

Optionally, the sending manner indicated by the first indication information may include an unscheduled manner or an authorized scheduling manner; and the sending manner indicated by the second indication information may include an unscheduled manner or an authorized scheduling manner.

Optionally, the sending unit 803 is further configured to: when the sending manner indicated by the first indication information is an authorized scheduling manner, or the sending manner indicated by the second indication information is an authorized scheduling manner, when the sending manner is performed, The authorization scheduling information is sent to the terminal in the window.

FIG. 9 is a schematic structural diagram of an embodiment of a terminal according to the present application. The terminal may be a terminal in any of the foregoing embodiments, and may be used to perform any method step in the embodiment corresponding to FIG. 1 to FIG.

As shown in FIG. 9, the terminal may include a processor 901, a memory 902, and a transceiver 903. The transceiver 903 may include components such as a receiver 9031, a transmitter 9032, and an antenna 9033. The terminal may also include more or less components, or a combination of certain components, or different component arrangements, which is not limited in this application.

The processor 901 is a control center of the terminal, and connects various parts of the entire terminal by using various interfaces and lines, by executing or executing software programs and/or modules stored in the memory 902, and calling data stored in the memory to execute Various functions of the terminal and/or processing data. The processor 901 may be composed of an integrated circuit (IC), for example, may be composed of a single packaged IC, or may be connected by It is composed of a plurality of package ICs with the same function or different functions. For example, the processor may include only a central processing unit (CPU), or may be a GPU, a digital signal processor (DSP), and a control chip in the transceiver 903 (for example, a baseband). A combination of chips). In the embodiment of the present application, the CPU may be a single operation core, and may also include a multi-operation core.

The transceiver 903 is configured to establish a communication channel, and enable the terminal to connect to the receiving device through the communication channel, thereby implementing data transmission between the terminals. The transceiver 903 may include a wireless local area network (WLAN) module, a Bluetooth module, a baseband module, and the like, and a radio frequency (RF) circuit corresponding to the communication module. Used for wireless local area network communication, Bluetooth communication, infrared communication, and/or cellular communication system communication, such as wideband code division multiple access (WCDMA) and/or high speed downlink packet access (high speed) Downlink packet access (HSDPA). The transceiver 903 is used to control communication of components in the terminal and can support direct memory access.

In various embodiments of the present application, the various transceivers 903 in the transceiver 903 generally appear in the form of integrated circuit chips, and can be selectively combined without including all the transceivers 903 and Corresponding antenna group. For example, the transceiver 903 can include only a baseband chip, a radio frequency chip, and a corresponding antenna to provide communication functionality in a cellular communication system. The wireless communication connection established via the transceiver 903, such as wireless local area network access or WCDMA access, may be connected to a cellular network or the internet. In some optional implementations of the present application, a communication module, such as a baseband module, in the transceiver 903 can be integrated into the processor, typically an APQ+MDM series platform such as that provided by Qualcomm. The radio frequency circuit is used for receiving and transmitting signals during information transmission and reception or during a call. For example, after the downlink information of the network device is received, it is processed by the processor; in addition, the data designed for the uplink is sent to the network device. Generally, the radio frequency circuit includes well-known circuits for performing these functions, including but not limited to an antenna system, a radio frequency transceiver, one or more amplifiers, a tuner, one or more oscillators, a digital signal processor, a codec. (codec) chipset, Subscriber Identity Module (SIM) card, memory, etc. In addition, the RF circuit can communicate with the network and other devices through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to a global system of mobile communication (GSM), a general packet radio service (gprs), and code division multiple access. (code division multiple access, CDMA for short), wideband code division multiple access (WCDMA), high speed uplink packet access (HSUPA), long-term evolution (long) Term evolution (LTE), e-mail, short messaging service (SMS), etc.

In the embodiment of the present application, the terminal may be used to implement various method steps of the channel state information reference signal receiving method in the foregoing embodiment. The function to be implemented by the receiving unit 701 may be implemented by the transceiver 903 of the terminal or by the transceiver 903 controlled by the processor 901; the function to be implemented by the sending unit 703 may also be implemented by the transceiver of the terminal. 903 is implemented, or may be implemented by the transceiver 903 controlled by the processor 901; the functions to be implemented by the processing unit 902 may be implemented by the processor 701.

FIG. 10 is a schematic structural diagram of another embodiment of a network device according to the present application. The network device in this embodiment may be used to perform any method steps that may be used to perform the operations in the embodiments corresponding to FIGS. 4-6. As shown in FIG. 10, the network device may be composed of a processor 1001, a memory 1002, a transceiver 1003, and the like.

The processor 1001 is a control center of the network device, and connects various parts of the entire network device by using various interfaces and lines, by running or executing software programs and/or modules stored in the memory, and calling data stored in the memory, Perform various functions of the network device and/or process data. The processor may be a central processing unit (CPU), a network processor (NP) or a combination of a CPU and an NP. The processor may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD) or a combination thereof. The PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general array logic (GAL) or any combination.

The memory 1002 may include a volatile memory, such as a random access memory (RAM); and may also include a non-volatile memory, such as a flash memory (flash) Memory), hard disk drive (HDD) or solid-state drive (SSD); the memory may also include a combination of the above types of memory. A program or code may be stored in the memory, and the processor in the network element may implement the function of the network element by executing the program or code.

In the embodiment of the present application, the network device may be used to implement various steps of the channel state information reference signal sending method in the foregoing embodiment. The function to be implemented by the receiving unit 801 may be implemented by the transceiver 1003 of the terminal, or implemented by the transceiver 1003 controlled by the processor 1001; the function to be implemented by the sending unit 803 may also be performed by the terminal. The transceiver 1003 is implemented or may also be implemented by the transceiver 1003 controlled by the processor 1001; the functions to be implemented by the processing unit 802 may be implemented by the processor 1001.

In a specific implementation, the present application further provides a computer storage medium, wherein the computer storage medium may store a program, and the program may include some or all of the steps in various embodiments of the calling method provided by the application. The storage medium may be a magnetic disk, an optical disk, a read-only memory (English: read-only memory, abbreviated as: ROM) or a random access memory (English: random access memory, abbreviation: RAM).

Those skilled in the art can clearly understand that the technology in the embodiments of the present application can be implemented by means of software plus a necessary general hardware platform. Based on such understanding, the technical solution in the embodiments of the present application may be embodied in the form of a software product in essence or in the form of a software product, and the computer software product may be stored in a storage medium such as a ROM/RAM. , a diskette, an optical disk, etc., including instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present application or portions of the embodiments.

The same and similar parts between the various embodiments in this specification can be referred to each other. In particular, for the terminal and the network device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant places can be referred to the description in the method embodiment.

The embodiments of the present application described above are not intended to limit the scope of the present application.

Claims

A data sending method, comprising:

Sending the first uplink data to the network device in a scheduling-free manner;

Receiving feedback information of the network device according to the first uplink data feedback;

If the feedback information is the first transmission feedback information, determining, according to a situation that the authorization scheduling information is received from the network device in a preset first time period, the first transmission feedback information is Information that is fed back after the network device detects the first uplink data and successfully receives the first uplink data;

Transmitting the second uplink data by using the first sending manner.
The method of claim 1, wherein determining the first sending mode according to the case of receiving the authorization scheduling information from the network device in the preset first time period comprises:

And if the authorization scheduling information is received from the network device in the first time period, the sending manner indicated by the authorization scheduling information is used as the first sending manner; or

If the authorization scheduling information is not received from the network device in the first time period, the scheduling mode is used as the first sending mode.
The method of claim 1 or 2, further comprising:

And if the feedback information is the second transmission feedback information, determining, according to the situation that the authorization scheduling information is received from the network device in a preset second time period, determining the second sending manner, where the second transmission feedback information is The information fed back by the network device after detecting the first uplink data but failing to successfully receive the first uplink data;

Retransmitting the first uplink data or transmitting the second uplink data by using the second sending manner.
The method of claim 3, determining the second sending mode according to the case of receiving the authorization scheduling information from the network device in a preset second time period, comprising:

And if the authorization scheduling information is received from the network device in the second time period, the sending manner indicated by the authorization scheduling information is used as the second sending manner; or

If the authorization scheduling information is not received from the network device in the second time period, the unscheduled transmission mode is used as the second transmission mode.
The method of claim 1 or 2, further comprising:

If the feedback information is the second transmission feedback information, the unscheduled transmission mode is used as the second transmission mode, and the second transmission feedback information is that the network device detects the first uplink data but fails to Information that is fed back after successfully receiving the first uplink data;

Retransmitting the first uplink data or transmitting the second uplink data by using the second sending manner.
The method according to any one of claims 1 to 5, wherein receiving feedback information of the network device according to the first uplink data feedback comprises:

Receiving the feedback information in a first receiving time window, where the first receiving time window corresponds to a sending time of the first uplink data.
A data sending method, comprising:

Sending the first uplink data to the network device in a scheduling-free manner;

Receiving feedback information of the network device according to the first uplink data feedback;

If the feedback information includes the first transmission feedback information and the first indication information, determining, according to the first indication information, a first sending manner, where the first transmission feedback information is that the network device detects the first uplink Data and information fed back after successfully receiving the first uplink data;

Transmitting the second uplink data by using the first sending manner.
The method of claim 7, wherein determining the first sending mode according to the first indication information comprises:

When the sending mode indicated by the first indication information is the scheduling mode, the scheduling mode is used as the first sending mode; or

When the sending manner indicated by the first indication information is the authorized scheduling mode, determining the first sending manner according to the situation that the scheduling authorization scheduling information is received from the network device within a preset first time period.
The method of claim 8, wherein the receiving the scheduling authorization scheduling information from the network device according to the preset first time period comprises:

And if the authorization scheduling information is received from the network device in the first time period, the sending manner indicated by the authorization scheduling information is used as the first sending manner;

If the authorization scheduling information is not received from the network device in the first time period, the unscheduled transmission mode is used as the first sending mode.
The method of any of claims 7 to 9, further comprising:

If the feedback information includes the second transmission feedback information and the second indication information, determining, according to the second indication information, a second sending manner, where the second transmission feedback information is that the network device detects the first uplink Data but failed to successfully receive the information fed back after the first uplink data;

Retransmitting the first uplink data or transmitting the second uplink data by using the second sending manner.
The method of claim 10, wherein determining the second sending mode according to the second indication information comprises:

When the sending manner indicated by the second indication information is the scheduling-free mode, the scheduling-free mode is used as the second sending manner; or

When the sending mode indicated by the second indication information is the authorized scheduling mode, determining the second sending mode according to the situation that the scheduling authorization scheduling information is received from the network device within a preset second time period.
The method of claim 11, wherein the receiving the scheduling authorization scheduling information from the network device according to the preset second time period comprises:

And if the authorization scheduling information is received from the network device in the second time period, the sending manner indicated by the authorization scheduling information is used as the second sending manner;

If the authorization scheduling information is not received from the network device in the second time period, the unscheduled transmission mode is used as the second transmission mode.
A method according to any one of claims 7 to 9, wherein

If the feedback information is the second transmission feedback information, the unscheduled transmission mode is used as the first transmission mode, and the second transmission feedback information is that the network device detects the first uplink data but fails to receive the data. Information fed back after the first uplink data;

Transmitting the second uplink data by using the first sending manner.
The method according to any one of claims 7 to 13, wherein receiving feedback information of the network device according to the first uplink data feedback comprises:

Receiving the feedback information in a first receiving time window, where the first receiving time window corresponds to a sending time of the first uplink data.
A data sending method, comprising:

Sending the first uplink data to the network device in a scheduling-free manner;

Determining a second receiving time window corresponding to a sending moment of the first uplink data;

Determining a first transmission mode according to a situation in which feedback information is received from the network device in the second receiving time window;

Transmitting the second uplink data by using the first sending manner.
The method according to claim 15, wherein determining the first sending mode according to the case of receiving feedback information from the network device in the second receiving time window comprises:

If the first transmission feedback information or the second transmission feedback information is received from the network device in the second receiving time window, and the authorization scheduling information is not received from the network device, determining that the unscheduled transmission mode is the a method of sending; or,

If the first transmission feedback information or the second transmission feedback information is not received from the network device in the second receiving time window, but the authorization scheduling information is received from the network device, determining that the authorization scheduling information indicates that the sending manner is Describe the first method of transmission; or,

If, in the second receiving time window, the first transmission feedback information or the second transmission feedback information is received from the network device, and the authorization scheduling information is received from the network device, determining that the authorization scheduling information indication is sent is Describe the first method of transmission; or,

If the first transmission feedback information or the second transmission feedback information is not received from the network device and the authorization scheduling information is not received from the network device, the unscheduled transmission mode is determined to be Describe the first transmission method;

The first transmission feedback information is information that is detected after the network device detects the first uplink data and successfully receives the first uplink data, and the second transmission feedback information is detected by the network device. Information fed back to the first uplink data but failed to successfully receive the first uplink data.
A data transmission method, characterized in that it comprises:

Receiving first uplink data;

If the terminal that sends the first uplink data can be determined, and the first uplink data can be successfully decoded, send the first transmission feedback information to the terminal, and determine whether it is at a preset first preset time. Sending the authorization scheduling information to the terminal device in the segment; wherein the first transmission feedback information is used to indicate that the first uplink data has been correctly received.
The method of claim 17 further comprising:

Authorization scheduling information is sent to the terminal within a preset first time period.
The method of claim 17 or 18, further comprising:

If the terminal that sends the first uplink data can be determined but fails to successfully decode the first uplink data, send the second transmission feedback information to the terminal, and determine whether it is in a preset second preset time period. And transmitting the authorization scheduling information to the terminal device, where the second transmission feedback information is used to indicate that the second uplink data is not correctly received.
The method of claim 19, further comprising:

Authorization scheduling information is sent to the terminal within a preset second time period.
A data transmission method, characterized in that it comprises:

Receiving first uplink data;

If the terminal that sends the first uplink data is determined, and the first uplink data is successfully decoded, the first transmission feedback information and the first indication are sent to the terminal, where the first transmission feedback information is used by The first indication information is used to indicate that the first uplink data has been correctly received, and the first indication information is used to indicate a first sending manner that is used when the terminal sends the second uplink data.
The method of claim 21 wherein

The sending manner indicated by the first indication information is a scheduling mode or an authorized scheduling mode.
The method of claim 22, further comprising:

And when the sending manner indicated by the first indication information is an authorized scheduling manner, the authorization scheduling information is sent to the terminal in a preset first time period.
The method of any of claims 21 to 23, further comprising:

If the terminal that sends the first uplink data is determined, but the first uplink data is not successfully decoded, the second transmission feedback information and the second indication information are sent to the terminal, where the second The transmission feedback information is used to indicate that the second uplink data is not correctly received, and the second indication information is used to indicate a second sending manner that is used when the terminal retransmits the first uplink data or sends the second uplink data.
The method of claim 24 wherein

The sending manner indicated by the second indication information is a scheduling mode or an authorized scheduling mode.
The method of claim 25, further comprising:

And when the sending manner indicated by the second indication information is an authorized scheduling manner, the authorization scheduling information is sent to the terminal in a preset second time period.
A data sending method, comprising:

Receiving first uplink data;

If the sending terminal that sends the first uplink data is determined, the feedback information is sent to the terminal in a preset sending time window according to the case of decoding the first uplink data, where the feedback information is used for Instructing the terminal to send the sending manner of the second uplink data in the preset second time period.
The method of claim 27, wherein the sending the feedback information to the terminal that sent the first uplink data in the sending time window according to the receiving status of the first uplink data comprises:

If the first uplink data can be correctly decoded, sending feedback information including the first transmission feedback information and the first indication information;

If the first uplink data is not correctly decoded, sending feedback information including the second transmission feedback information and the second indication information;

The first transmission feedback information is used to indicate that the first uplink data has been correctly received, and the first indication information is used to indicate a first transmission mode used by the terminal to send the second uplink data; the second transmission The feedback information is used to indicate that the second uplink data is not correctly received, and the second indication information is used to indicate a second sending manner that is used when the terminal retransmits the first uplink data or sends the second uplink data.
The method of claim 28, further comprising:

The sending manner indicated by the first indication information includes an unscheduled mode or an authorized scheduling manner;

The sending manner indicated by the second indication information includes an unscheduled manner or an authorized scheduling manner.
The method of claim 29, further comprising:

When the first indication information indicates that the transmission mode is the authorization scheduling mode or the transmission mode indicated by the second indication information is the authorization scheduling mode, the authorization scheduling information is sent to the terminal in the sending time window.
A terminal, comprising:

a sending unit, configured to send, by using a scheduling-free manner, the first uplink data to the network device;

a receiving unit, configured to receive feedback information that is sent by the network device according to the first uplink data;

a processing unit, configured to determine, according to the first transmission feedback information, a first sending manner, where the first transmission mode is received according to a situation that the authorization scheduling information is received from the network device in a preset first time period, the first transmission The feedback information is information that is feedback after the network device detects the first uplink data and successfully receives the first uplink data.

And a sending unit, configured to send the second uplink data by using the first sending manner.
The terminal of claim 31, wherein

The processing unit is configured to: if the authorization scheduling information is received from the network device in the first time period, use the sending manner indicated by the authorization scheduling information as the first sending manner; or If the authorization scheduling information is not received from the network device in the first time period, the unscheduled transmission mode is used as the first transmission mode.
A terminal according to claim 31 or 32, characterized in that

The processing unit is further configured to: if the feedback information is the second transmission feedback information, determine the second sending manner according to the situation that the authorization scheduling information is received from the network device within a preset second time period, The second transmission feedback information is information that is feedback after the network device detects the first uplink data but fails to successfully receive the first uplink data;

The sending unit is further configured to retransmit the first uplink data or send the second uplink data by using the second sending manner.
The terminal of claim 33,

The processing unit is configured to: if the authorization scheduling information is received from the network device in the second time period, the sending manner indicated by the authorization scheduling information is used as the second sending manner; or If the authorization scheduling information is not received from the network device during the second time period, the scheduling is not sent. The delivery method is the second transmission method.
A terminal according to claim 31 or 32, characterized in that

The processing unit is further configured to: if the feedback information is the second transmission feedback information, use the unscheduled transmission mode as the second transmission mode, where the second transmission feedback information is detected by the network device The information fed back after the first uplink data is not successfully received after receiving the first uplink data;

The sending unit is further configured to retransmit the first uplink data or send the second uplink data by using the second sending manner.
A terminal according to any one of claims 31 to 35, characterized in that

The receiving unit is configured to receive the feedback information in a first receiving time window, where the first receiving time window corresponds to a sending time of the first uplink data.
A terminal, comprising:

a sending unit, configured to send, by using a scheduling-free manner, the first uplink data to the network device;

a receiving unit, configured to receive feedback information that is sent by the network device according to the first uplink data;

a processing unit, configured to determine, according to the first indication information, a first sending manner, where the feedback information includes the first transmission feedback information and the first indication information, where the first transmission feedback information is detected by the network device The first uplink data and the information fed back after successfully receiving the first uplink data;

The sending unit is further configured to send the second uplink data by using the first sending manner.
The terminal of claim 37, wherein:

The processing unit is configured to: when the sending manner indicated by the first indication information is a scheduling-free mode, use the scheduling-free mode as the first sending manner; or, when the first indication information indicates the sending manner When the scheduling mode is authorized, the first sending mode is determined according to the situation that the scheduling authorization scheduling information is received from the network device within a preset first time period.
The terminal of claim 38, wherein

The processing unit is further configured to: if the authorization scheduling information is received from the network device in the first time period, use the sending manner indicated by the authorization scheduling information as the first sending manner; or And if the authorization scheduling information is not received from the network device in the first time period, the unscheduled transmission mode is used as the first sending manner.
A terminal according to any one of claims 37 to 39, characterized in that

The processing unit is further configured to: if the feedback information includes the second transmission feedback information and the second indication information, determine a second sending manner according to the second indication information, where the second transmission feedback information is the network Information that is detected after the device detects the first uplink data but fails to receive the first uplink data;

The sending unit is further configured to retransmit the first uplink data or send the second uplink data by using the second sending manner.
The terminal of claim 40, wherein

The processing unit is configured to: when the sending manner indicated by the second indication information is a scheduling-free mode, use the scheduling-free mode as the second sending manner; or, when the second indication information indicates the sending manner When the scheduling mode is authorized, the second sending mode is determined according to the situation that the scheduling authorization scheduling information is received from the network device within a preset second time period.
The terminal of claim 41, wherein:

The processing unit is configured to: if the authorization scheduling information is received from the network device in the second time period, the sending manner indicated by the authorization scheduling information is used as the second sending manner; or And if the authorization scheduling information is not received from the network device in the second time period, the unscheduled transmission mode is used as the second sending manner.
A terminal according to any one of claims 37 to 39, characterized in that

The processing unit is further configured to: if the feedback information is the second transmission feedback information, use the unscheduled transmission mode as the first transmission mode, and the second transmission feedback information is the negative response information;

The sending unit is further configured to send the second uplink data by using the first sending manner.
A terminal according to any one of claims 37 to 43 wherein:

The receiving unit is configured to receive the feedback information in a first receiving time window, where the first receiving time window corresponds to a sending time of the first uplink data.
A terminal, comprising:

a sending unit, configured to send, by using a scheduling-free manner, the first uplink data to the network device;

a receiving unit, configured to determine a sending time window corresponding to a sending moment of the first uplink data;

a processing unit, configured to determine, according to a situation that the feedback information is received from the network device in the sending time window, the first sending manner;

The sending unit is further configured to send the second uplink data by using the first sending manner.
The terminal of claim 45, wherein:

The processing unit is specifically configured to: if the receiving unit receives the first transmission feedback information or the second transmission feedback information from the network device in the sending time window, and does not receive the authorization scheduling information from the network device, Determining the unscheduled transmission mode is the third transmission mode first transmission mode; or, if the receiving unit is within the transmission time window, not receiving the first transmission feedback information or the second transmission feedback information from the network device Receiving the authorization scheduling information from the network device, determining that the transmission mode indicated by the authorization scheduling information is the first transmission mode of the third transmission mode; or, if the receiving unit is within the transmission time window, both from the network Receiving the first transmission feedback information or the second transmission feedback information, and receiving the authorization scheduling information from the network device, determining that the transmission mode indicated by the authorization scheduling information is the first sending mode of the third sending mode; or The receiving unit does not receive the first transmission feedback information from the network device in the sending time window. A second transmission feedback information is not received from another network device to grant scheduling information, the scheduler determines free transmission mode is a first transmission method transmitting a third embodiment;

The first transmission feedback information is information that is detected after the network device detects the first uplink data and successfully receives the first uplink data, and the second transmission feedback information is detected by the network device. Information fed back to the first uplink data but failed to successfully receive the first uplink data.
A network device, comprising:

a receiving unit, configured to receive first uplink data;

a processing unit, configured to determine whether to send authorization scheduling information to the terminal device within a preset second preset time period;

And a sending unit, configured to send the first transmission feedback information to the terminal, where the first transmission feedback information is used to indicate that the first uplink data has been correctly received.
A network device according to claim 47, wherein

The sending unit is further configured to send the authorization scheduling information to the terminal within a preset first time period.
A network device according to claim 47 or 48, wherein

The processing unit is further configured to determine whether to send authorization scheduling information to the terminal device within a preset second preset time period;

The sending unit is further configured to send second transmission feedback information to the terminal, where the second transmission feedback information is used to indicate that the second uplink data is not correctly received.
A network device according to claim 49, wherein

The sending unit is further configured to send the authorization scheduling information to the terminal within a preset second time period.
A network device, comprising:

a receiving unit, configured to receive first uplink data;

a sending unit, configured to send the first transmission feedback information and the first indication to the terminal, if the terminal that sends the first uplink data can be determined, and the first uplink data can be successfully decoded, where the A transmission feedback information is used to indicate that the first uplink data has been correctly received, and the first indication information is used to indicate a first sending manner that is used when the terminal sends the second uplink data.
A network device according to claim 51, wherein

The sending manner indicated by the first indication information is a scheduling mode or an authorized scheduling mode.
A network device according to claim 52, wherein

The sending unit is further configured to: when the sending manner indicated by the first indication information is an authorized scheduling manner, send the authorization scheduling information to the terminal in a preset first time period.
The network device according to any one of claims 51 to 53, further comprising:

The sending unit is further configured to: if the terminal that sends the first uplink data is determined but fails to successfully decode the first uplink data, send the second transmission feedback information and the second indication information to the terminal, The second transmission feedback information is used to indicate that the second uplink data is not correctly received, and the second indication information is used to indicate that the terminal retransmits the first uplink data or sends the second uplink data. The second way to send.
A network device according to claim 54, wherein

The sending manner indicated by the second indication information is a scheduling mode or an authorized scheduling mode.
The network device of claim 55, further comprising:

The sending unit is further configured to: when the sending manner indicated by the second indication information is an authorized scheduling manner, send the authorization scheduling information to the terminal in a preset second time period.
A network device, comprising:

a receiving unit, configured to receive first uplink data;

a sending unit, configured to: if the sending terminal that sends the first uplink data is determined, send feedback information to the terminal in a preset sending time window according to the case of decoding the first uplink data, where The feedback information is used to indicate that the terminal sends the sending manner of the second uplink data in the preset second time period.
A network device according to claim 57, wherein

The sending unit is specifically configured to: if the first uplink data can be correctly decoded, send feedback information including the first transmission feedback information and the first indication information; or, if the first uplink data is not correctly decoded, Sending feedback information including the second transmission feedback information and the second indication information;

The first transmission feedback information is used to indicate that the first uplink data has been correctly received, and the first indication information is used to indicate a first transmission mode used by the terminal to send the second uplink data; the second transmission The feedback information is used to indicate that the second uplink data is not correctly received, and the second indication information is used to indicate a second sending manner that is used when the terminal retransmits the first uplink data or sends the second uplink data.
The network device of claim 58, further comprising:

The sending manner indicated by the first indication information may include an unscheduled manner or an authorized scheduling manner;

The sending manner indicated by the second indication information may include an unscheduled manner or an authorized scheduling manner.
A network device according to claim 59, wherein

The sending unit is further configured to: when the sending manner indicated by the first indication information is an authorized scheduling manner, or the sending manner indicated by the second indication information is an authorized scheduling manner, to the terminal in the sending time window Send authorization scheduling information.