WO2019085740A1

WO2019085740A1 - Buffer status reporting method, terminal and computer-readable storage medium

Info

Publication number: WO2019085740A1
Application number: PCT/CN2018/110456
Authority: WO
Inventors: 赵亚利; 伯特兰⋅皮埃尔; 谌丽
Original assignee: 电信科学技术研究院有限公司
Priority date: 2017-11-03
Filing date: 2018-10-16
Publication date: 2019-05-09
Also published as: CN109756987B; CN109756987A

Abstract

The present disclosure relates to the technical field of communications, and provided thereby are a buffer status reporting method, a terminal, and a computer-readable storage medium. The buffer status reporting method comprises: if a terminal receives a plurality of uplink scheduling grants of different lengths which are for the same preset period of time and which are sent from a base station, then determining a first uplink scheduling grant for buffer status reporting from among the plurality of uplink scheduling grants; and transmitting, to the base station, buffer status reporting information on a resource scheduled by the first uplink scheduling grant, wherein the buffer status reporting information comprises: regular buffer status reporting (BSR) or periodic BSR.

Description

Buffer status reporting method, terminal and computer readable storage medium

Cross-reference to related applications

The present application claims priority to Chinese Patent Application No. 201711072947.3, filed on Jan.

Technical field

The present disclosure relates to the field of communications technologies, and in particular, to a buffer status reporting method, a terminal, and a computer readable storage medium.

Background technique

The 3GPP (3rd Generation Partnership Project) Long Term Evolution (LTE) system is a scheduling-based system. The base station allocates time-frequency resources required for data transmission to the terminal device, and the terminal performs downlink data reception according to the scheduling command of the base station. Uplink data is sent. The uplink data transmission is scheduled by the base station, and the base station scheduler notifies the terminal by using an uplink grant permission (UL grant) after determining the uplink resource allocation situation. The basis for the uplink resource allocation by the base station scheduler is the amount of uplink data to be sent by the terminal, that is, the buffer status of the terminal. Because the cache is on the terminal side, the base station needs to obtain the Buffer Status Reporting (BSR) to the base station in order to obtain the buffer status information. The BSR mechanism in the LTE Rel-11 and the previous version includes: the granularity of the BSR reporting and the BSR-related radio resource control (RRC) layer parameter configuration. The BSR reporting of the LTE system is based on the logical channel group. (Logical Channel Group, LCG), a total of four LCGs are defined. The LCG ID corresponding to the bearer/logical channel is configured when the bearer is established.

BSRs are usually divided into: regular BSR (Regular BSR), periodic BSR (Periodic BSR), and piggyback BSR (Padding BSR).

The scheduling of the LTE system is based on a fixed length transmission time interval (TTI). The BSR reports the following rules: A maximum of one Regular BSR is transmitted to each Medium Access Control (MAC) entity terminal in one TTI. Or Periodic BSR. The BSR reported at the same time can be selected by any UL grant. Regardless of whether it is a Regular BSR or a Periodic BSR or a Padding BSR, the buffer status corresponding to the same logical channel group should be the same.

However, for the New Radio (NR) system, the length of the TTI corresponding to each scheduling is flexible, and it is possible for the same terminal to receive multiple UL grants for different time periods of the same time period. For example, as shown in FIG. 1, the terminal receives three UL grants for the same time period, and each rectangular box in the figure represents the time domain location of the resources scheduled by the UL grant of different TTI lengths.

In this case, if the terminal has a regular BSR or a periodic BSR, the end time of the scheduling resource corresponding to the different UL grants is different. Therefore, the value of the corresponding buffer state is different when different UL grants are used to carry the Regular BSR or the Periodic BSR. However, the value of the different buffer status information will affect the subsequent scheduling decision of the base station; however, the related art does not implement how to perform BSR reporting in this case.

Summary of the invention

The embodiment of the present disclosure provides a buffer status reporting method, a terminal, and a computer readable storage medium, so as to solve the problem in the NR system, when the terminal receives multiple UL grants for the same time period with different TTI lengths, the terminal cannot determine how to determine how to BSR does not guarantee the reliability of network communication.

In order to solve the above technical problem, an embodiment of the present disclosure provides a buffer status reporting method, including:

If the terminal receives the uplink scheduling permission for the same preset time period that is sent by the base station, the first uplink scheduling permission for performing buffer status reporting is determined in the multiple uplink scheduling grants;

Transmitting buffer status report information to the base station on the resource of the first uplink scheduling grant scheduling;

The buffer status report information includes: reporting a BSR or a periodic BSR in a normal buffer status.

Further, the determining, by the plurality of uplink scheduling grants, the first uplink scheduling permission for performing buffer status reporting, includes:

Determining, as the first uplink scheduling permission, the latest uplink scheduling permission of the scheduling resource ending time in the plurality of uplink scheduling grants; or

Determining, as the first uplink scheduling permission, the earliest uplink scheduling permission at the end of the scheduling resource in the plurality of uplink scheduling grants; or

At least two uplink scheduling grants are determined as the first uplink scheduling grant among the plurality of uplink scheduling grants.

Further, the sending the buffer status report information to the base station on the resource of the first uplink scheduling grant scheduling, including:

Determining the value of the buffer state corresponding to the logical channel or logical channel group carried in the buffer status report information;

The buffer status report information that includes the buffer state corresponding to the logical channel or the logical channel group is sent to the base station by using the resource scheduled by the first uplink scheduling grant.

Further, the determining, by the buffer state, the buffer state corresponding to the logical channel or the logical channel group carried in the buffer status report information, including:

And determining, according to the scheduling resource end time corresponding to the first uplink scheduling permission, a value of a buffer state corresponding to the logical channel or the logical channel group that is to be carried in the buffer status report information.

Further, the buffer status reporting method further includes:

If there is a piggybacking BSR, the piggybacked BSR is sent to the base station by using the resource scheduled by the second uplink scheduling grant;

The second uplink scheduling grant is an uplink scheduling grant of the plurality of uplink scheduling grants except the first uplink scheduling grant.

Further, the step of transmitting the piggybacking BSR to the base station by using the resource of the second uplink scheduling grant scheduling includes:

Determining a buffer state corresponding to a logical channel or a logical channel group carried in the piggybacking BSR;

The piggybacking BSR including the buffer state corresponding to the logical channel or the logical channel group is sent to the base station by using the resource scheduled by the second uplink scheduling grant.

Further, the determining, by the value of the buffer state corresponding to the logical channel or the logical channel group carried in the piggybacking BSR, includes:

The buffer state value corresponding to the logical channel or the logical channel group that needs to be carried in the piggybacking BSR is determined according to the scheduling resource end time corresponding to the second uplink scheduling grant.

Embodiments of the present disclosure also provide a terminal, including a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor; wherein the processor is configured to read a program in the memory , perform the following process:

The transceiver is configured to send buffer status report information to the base station on the first uplink scheduling grant scheduling resource;

Further, the processor is configured to read a program in the memory and perform the following process:

The transceiver is configured to send, by using the first uplink scheduling grant scheduling resource, a buffer status report information that includes a value of a buffer state corresponding to the logical channel or a logical channel group to a base station.

Further, in the terminal, the transceiver is used to:

The transceiver is configured to send, by the piggyback BSR that takes the buffer state corresponding to the logical channel or the logical channel group, the resource scheduled by the second uplink scheduling grant to the base station.

The value of the buffer state corresponding to the logical channel or the logical channel group that needs to be carried in the piggybacking BSR is determined according to the scheduling resource ending time corresponding to the second uplink scheduling grant.

The embodiment of the present disclosure further provides a computer readable storage medium having stored thereon a computer program, wherein the computer program is executed by a processor to implement the step of the buffer status reporting method.

The embodiment of the present disclosure further provides a terminal, including:

a determining module, configured to determine, according to the multiple uplink scheduling grants for the same preset time period that are sent by the base station, the first uplink scheduling permission for performing buffer status reporting in the multiple uplink scheduling grants ;

a first sending module, configured to send buffer status report information to the base station on the resource of the first uplink scheduling grant scheduling;

Further, the determining module is configured to:

Further, the first sending module includes:

a first determining unit, configured to determine a value of a buffer state corresponding to a logical channel or a logical channel group that needs to be carried in the buffer status report information;

The first sending unit is configured to send the buffer status report information that includes the buffer state corresponding to the logical channel or the logical channel group to the base station by using the resource scheduled by the first uplink scheduling permission.

Further, the first determining unit is configured to:

Further, the terminal further includes:

a second sending module, configured to: if the piggybacking BSR exists, send the piggybacking BSR to the base station by using the resource scheduled by the second uplink scheduling grant;

Further, the second sending module includes:

a second determining unit, configured to determine a buffer state value corresponding to the logical channel or the logical channel group that needs to be carried in the piggybacking BSR;

And a second sending unit, configured to send, by the piggyback BSR that takes the buffer state corresponding to the logical channel or the logical channel group, the resource scheduled by the second uplink scheduling grant to the base station.

Further, the second determining unit is configured to:

The beneficial effects of the present disclosure are:

In the foregoing solution, when the terminal receives the uplink scheduling grants for the same preset time period that are sent by the base station, the first uplink scheduling grant for performing buffer status reporting is first determined in the multiple uplink scheduling grants. And then sending the buffer status report information to the base station on the resource of the first uplink scheduling grant scheduling; thereby solving the problem of how to use multiple uplink scheduling grant transmission buffer status reporting information with different lengths to improve the network communication process. It avoids affecting the subsequent scheduling decisions of the base station and ensures the reliability of network communication.

DRAWINGS

FIG. 1 is a schematic diagram showing the location of time domain resources of different UL grant scheduling;

FIG. 2 is a schematic flowchart diagram of a buffer status reporting method according to an embodiment of the present disclosure;

3 is a block diagram showing a terminal of an embodiment of the present disclosure;

FIG. 4 shows a structural diagram of a terminal of an embodiment of the present disclosure.

Detailed ways

The present disclosure will be described in detail below with reference to the drawings and specific embodiments.

In the NR system, when the terminal receives multiple UL grants for different time periods with different TTI lengths, the terminal cannot determine how to perform BSR, and cannot guarantee the reliability of network communication, and provides a buffer status reporting method. , terminal and computer readable storage medium.

As shown in FIG. 2, a buffer status reporting method according to an embodiment of the present disclosure is applied to a terminal, including:

Step 21: If the terminal receives the uplink scheduling permission for the same preset time period that is sent by the base station, the terminal determines the first uplink scheduling permission for performing the buffer status reporting in the multiple uplink scheduling grants.

It should be noted that, in this embodiment, the terminal is configured to receive, by the terminal, multiple uplink grants (UL grants) for different preset lengths sent by the base station, for example, when the situation occurs, the terminal first It is to determine which of the uplink scheduling grants (the plurality of uplink scheduling grants referred to herein refer to at least two uplink scheduling grants), which uplink scheduling grants (ie, the first uplink scheduling grants mentioned above) are scheduled. The resource performs buffer status reporting, where an uplink scheduling grant may be determined by multiple uplink scheduling grants, that is, the first uplink scheduling grant includes only one uplink scheduling grant; and at least two uplink scheduling may be determined among multiple uplink scheduling grants. The license, that is, the first uplink scheduling license includes at least two uplink scheduling grants.

The difference in length mentioned above means that the length of the TTI of the uplink scheduling grant is different.

Step 22: Send buffer status report information to the base station on the resource of the first uplink scheduling grant scheduling.

It should be noted that the buffer status report information sent by the first uplink scheduling permission includes: reporting a BSR or a periodic BSR in a normal buffer state. The priority of the regular BSR is the same as the priority of the periodic BSR when performing BSR prioritization. If multiple BSRs are triggered at the same time, only the highest priority is reported. For the regular BSR and the periodic BSR, the content of all the available data in the buffer is the same, and the reporting format is the same. You can choose one of them to report.

In the embodiment of the present disclosure, when the terminal receives the uplink scheduling grants for the same preset time period that are sent by the base station, the terminal first determines the first uplink for reporting the buffer status in the multiple uplink scheduling grants. Scheduling the license, and then sending the buffer status report information to the base station on the resource of the first uplink scheduling grant scheduling; thereby solving the problem of how to use multiple uplink scheduling grant transmission buffer status reporting information with different lengths to improve network communication The process avoids affecting the subsequent scheduling decisions of the base station and ensures the reliability of the network communication.

Specifically, step 11 may be implemented by using any one of the following implementation manners, that is, the determining principle of the first uplink scheduling grant:

1. The latest uplink scheduling permission of the scheduling resource ending time in the multiple uplink scheduling grants is determined as the first uplink scheduling permission;

It should be noted that the implementation may be such that the buffer status (BS) information reported by the regular BSR or the periodic BSR can reflect the status of the BS of the terminal after all the uplink scheduling grants are completed, so that the subsequent scheduling is more accurate. To avoid waste of base station scheduling resources.

2. The uplink scheduling grant with the earliest scheduling resource ending time in the plurality of uplink scheduling grants is determined as the first uplink scheduling grant;

It should be noted that the implementation manner can enable the network side to know the buffer status information of the terminal as soon as possible. If the service with high requirement and large amount of data is delayed, the subsequent scheduling can be performed as soon as possible.

3. Determining at least two uplink scheduling grants as the first uplink scheduling grant in the multiple uplink scheduling grants;

It should be noted that, in this implementation manner, the reliability of the BSR report can be improved by selecting multiple uplink scheduling grants for reporting the regular BSR or the periodic BSR.

It should be noted that, in practical applications, the first uplink scheduling grant may be determined by flexibly selecting an implementation manner that satisfies the usage requirement according to the actual use requirements of the network.

It should be noted that, since the reporting in the buffer state is performed according to the logical channel or the logical channel group, the reporting information needs to carry the logical channel to be reported or the buffer state corresponding to the logical channel group to be reported. Specifically, the implementation of step 22 is as follows:

Specifically, the manner of determining the buffer state corresponding to the logical channel or the logical channel group carried in the buffer status report information is:

It should be noted that, in the reporting process of the regular BSR or the periodic BSR, if there is a Padding bit in the UL grant, the piggybacking BSR may be sent to the base station. Specifically, the implementation manner is:

It should be noted that, because a MAC protocol data unit (PDU) includes at most one BSR, the piggyback BSR cannot be transmitted in a MAC PDU with a regular BSR (or a periodic BSR). For better differentiation, the piggybacking BSR is transmitted in resources that do not transmit the regular scheduling grant scheduling of the regular BSR or the periodic BSR.

Similarly, the piggybacking BSR is also performed according to the logical channel or the logical channel group. Therefore, the reporting information needs to carry the logical channel to be reported or the buffer state corresponding to the logical channel group to be reported. Specifically, the second uplink scheduling is used. The specific implementation manner in which the licensed scheduling resource sends the piggybacking BSR to the base station is:

And transmitting, by the piggybacking BSR that takes the buffer state corresponding to the logical channel or the logical channel group, the resource scheduled by the second uplink scheduling grant to the base station.

Further, the manner of determining the buffer state corresponding to the logical channel or the logical channel group that needs to be carried in the piggybacking BSR is:

In the following, in the actual application, the specific implementation of the embodiment of the present disclosure is exemplified as follows according to the determination principle of each different first uplink scheduling permission. It should be noted that the following examples all receive the same for the terminal. Three UL grants in the T period (as shown in Figure 1), and before the T period, the terminal has a regular BSR or a periodic BSR trigger as an example.

Situation 1,

The selection principle of the first uplink scheduling permission for reporting the buffer status is as follows: selecting the earliest uplink scheduling permission at the end of the scheduling resource in the plurality of uplink scheduling grants as the first uplink scheduling permission, thereby performing regular BSR or periodicity The report of the BSR. The purpose of this is to let the network side know the buffer status information of the terminal as soon as possible. If the service with high demand and large amount of data is delayed, the subsequent scheduling can be performed as soon as possible. Based on this principle, the terminal should select UL grant 2 for regular BSR or periodic BSR reporting.

At the same time, the BS information calculation principle of the logical channel or the logical channel group that needs to be carried in the regular BSR or the periodic BSR is: determining the logical channel to be carried in the regular BSR or the periodic BSR according to the end time of the resource scheduled by the UL grant 2 Or the buffer status corresponding to the logical channel group takes a value.

If there is a piggyback BSR, the Padding BSR can be carried in a MAC PDU without a regular BSR or a periodic BSR, as shown in Figure 1, that is, in the MAC PDU corresponding to the resources scheduled by UL grant 1 and UL grant 3. Carry the Padding BSR (provided that there are redundant padding in the resources scheduled by UL grant 1 and UL grant 3). The value of the buffer state corresponding to the logical channel or the logical channel group carried in the Padding BSR may be the same as the value of the buffer state corresponding to the logical channel or logical channel group carried in the regular BSR or the periodic BSR. different. The calculation principle of the buffer state corresponding to the logical channel or the logical channel group carried in the Padding BSR is to determine the logical channel or logic to be carried in the piggybacking BSR according to the end time of the resource scheduled by the UL grant in which the Padding BSR is located. The value of the buffer state corresponding to the logical channel or logical channel group carried in the Padding BSR and the logical channel or logical channel group to be carried in the regular BSR or periodic BSR. The corresponding buffer status values are different.

Case 2

The selection principle of the first uplink scheduling permission for reporting the buffer status is as follows: selecting the latest uplink scheduling permission at the end of the scheduling resource in the multiple uplink scheduling grants as the first uplink scheduling grant, thereby performing the regular BSR or period Report of sexual BSR. The purpose of this is to enable the BS information reported by the regular BSR or the periodic BSR to reflect the situation of the terminal BS after the current UL grant is completed, so that the subsequent scheduling is more accurate and the waste of the base station scheduling resources is avoided. Therefore, the terminal should select the UL grant 1 (because the end times of the scheduling resources of the UL grant 1 and the UL grant 3 are the same, and one of them can be randomly selected) to perform regular BSR or periodic BSR reporting.

At the same time, the BS information calculation principle of the logical channel or the logical channel group that needs to be carried in the regular BSR or the periodic BSR is: determining the logical channel to be carried in the regular BSR or the periodic BSR according to the end time of the resource scheduled by the UL grant 1. Or the buffer status corresponding to the logical channel group takes a value.

If there is a Padding BSR, the Padding BSR can be carried in a MAC PDU without a regular BSR or a periodic BSR. As shown in FIG. 1 , the Padding BSR is carried in the MAC PDU corresponding to the resources scheduled by the UL grant 2 and the UL grant 3. The premise is that there are redundant padding in the resources scheduled by UL grant 2 and UL grant 3. The value of the buffer state corresponding to the logical channel or the logical channel group carried in the Padding BSR may be the same as the value of the buffer state corresponding to the logical channel or logical channel group carried in the regular BSR or the periodic BSR. different. The calculation principle of the buffer state corresponding to the logical channel or the logical channel group carried in the Padding BSR is to determine the logical channel or logic to be carried in the piggybacking BSR according to the end time of the resource scheduled by the UL grant in which the Padding BSR is located. The value of the buffer state corresponding to the logical channel or logical channel group carried in the Padding BSR and the logical channel or logical channel group to be carried in the regular BSR or periodic BSR. The corresponding buffer status values are different.

Case 3,

The selection principle of the first uplink scheduling grant for reporting the buffer status is as follows: selecting at least two uplink scheduling grants as the first uplink scheduling grant among the multiple uplink scheduling grants, thereby reporting the regular BSR or the periodic BSR. . The purpose of this is to improve the reliability of BSR reporting. For example, based on the principle, the terminal should select the UL grant 1 and the UL grant 3 for regular BSR or periodic BSR reporting.

Similarly, the BS information calculation principle of the logical channel or logical channel group that needs to be carried in the regular BSR or the periodic BSR is: determining the need to utilize the resource transmission scheduled in the UL grant 1 according to the end time of the resource scheduled by the UL grant 1 in the conventional The buffer state corresponding to the logical channel or the logical channel group carried in the BSR or the periodic BSR takes the value; the end time of the resource scheduled according to the UL grant 3 determines the need to use the resource transmission scheduled in the UL grant 3 in the regular BSR or periodicity. The buffer state corresponding to the logical channel or logical channel group carried in the BSR takes the value.

If there is a Padding BSR, the Padding BSR can be carried in a MAC PDU without a regular BSR or a periodic BSR. As shown in Figure 1, the Padding BSR is carried in the MAC PDU corresponding to the resource scheduled by the UL grant 2. 2 There are extra padding in the scheduled resources). The value of the buffer state corresponding to the logical channel or the logical channel group carried in the Padding BSR may be the same as the value of the buffer state corresponding to the logical channel or logical channel group carried in the regular BSR or the periodic BSR. different. The calculation principle of the buffer state corresponding to the logical channel or the logical channel group carried in the Padding BSR is to determine the logical channel or logic to be carried in the piggybacking BSR according to the end time of the resource scheduled by the UL grant in which the Padding BSR is located. The value of the buffer state corresponding to the logical channel or logical channel group carried in the Padding BSR and the logical channel or logical channel group to be carried in the regular BSR or periodic BSR. The corresponding buffer status values are different.

It should be noted that the embodiment of the present disclosure can ensure that the terminal performs BSR reporting according to the requirements of the network, ensures the reliability of the base station to obtain the BS information, facilitates the subsequent scheduling of the base station, and ensures the reliability of the network communication.

As shown in FIG. 3, an embodiment of the present disclosure further provides a terminal 30, including:

The determining module 31 is configured to: if the terminal receives the uplink scheduling grants for the same preset time period that are sent by the base station, determine the first uplink scheduling for performing buffer status reporting in the multiple uplink scheduling grants. license;

The first sending module 32 is configured to send buffer status report information to the base station on the first uplink scheduling grant scheduling resource;

Further, the determining module 31 is configured to:

Further, the first sending module 32 includes:

Specifically, the first determining unit is configured to:

Further, the terminal further includes:

Further, the second sending module includes:

And a second sending unit, configured to send the piggyback BSR that includes the buffer state corresponding to the logical channel or the logical channel group to the base station by using the resource scheduled by the second uplink scheduling grant.

Further, the second determining unit is configured to:

It should be noted that the terminal embodiment is a terminal corresponding to the foregoing method embodiment. All the implementation manners in the foregoing method embodiments are applicable to the embodiment of the terminal, and the same technical effects can be achieved.

As shown in FIG. 4, an embodiment of the present disclosure further provides a terminal 40, including a processor 41, a transceiver 42, a memory 43, and a program stored on the memory 43 and executable on the processor 41; The transceiver 42 is coupled to the processor 41 and the memory 43 via a bus interface, wherein the processor 41 is configured to read a program in the memory and perform the following process:

The transceiver 42 is configured to send buffer status report information to the base station on the first uplink scheduling grant scheduling resource;

It should be noted that in FIG. 4, the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 41 and various circuits of memory represented by memory 43. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. Transceiver 42 may be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium. For different terminals, the user interface 44 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like. The processor 41 is responsible for managing the bus architecture and the usual processing, and the memory 43 can store data used by the processor 41 when performing operations.

Optionally, the processor 41 is configured to read a program in the memory 43 and perform the following process:

The transceiver 42 is configured to send, by using the first uplink scheduling grant scheduling resource, the buffer status report information that includes the buffer state corresponding to the logical channel or the logical channel group to the base station.

Further, the transceiver 42 is further configured to:

The transceiver 42 is configured to send, by the piggyback BSR that takes the buffer state corresponding to the logical channel or the logical channel group, the resource scheduled by the second uplink scheduling grant to the base station.

When receiving the uplink scheduling grants for the same preset time period that are different in length, the terminal in the embodiment of the present disclosure first determines the first uplink used for buffer status reporting in the multiple uplink scheduling grants. Scheduling the license, and then sending the buffer status report information to the base station on the resource of the first uplink scheduling grant scheduling; thereby solving the problem of how to use multiple uplink scheduling grant transmission buffer status reporting information with different lengths to improve network communication The process avoids affecting the subsequent scheduling decisions of the base station and ensures the reliability of the network communication.

An embodiment of the present disclosure further provides a computer readable storage medium having stored thereon a computer program, wherein the computer program is executed by a processor to implement the following steps:

Optionally, the computer program is executed by the processor to implement the following steps:

The above is a preferred embodiment of the present disclosure, and it should be noted that those skilled in the art can also make several improvements and refinements without departing from the principles of the present disclosure. Within the scope of public protection.

Claims

A buffer status reporting method includes:

If the terminal receives the uplink scheduling permission for the same preset time period that is sent by the base station, the first uplink scheduling permission for performing buffer status reporting is determined in the multiple uplink scheduling grants;

Transmitting buffer status report information to the base station on the resource of the first uplink scheduling grant scheduling;

The buffer status report information includes: reporting a BSR or a periodic BSR in a normal buffer status.
The buffer status reporting method according to claim 1, wherein the determining, by the plurality of uplink scheduling grants, the first uplink scheduling permission for performing buffer status reporting comprises:

Determining, as the first uplink scheduling permission, the latest uplink scheduling permission of the scheduling resource ending time in the plurality of uplink scheduling grants; or

Determining, as the first uplink scheduling permission, the earliest uplink scheduling permission at the end of the scheduling resource in the plurality of uplink scheduling grants; or

At least two uplink scheduling grants are determined as the first uplink scheduling grant among the plurality of uplink scheduling grants.
The buffer status reporting method according to claim 1, wherein the sending the buffer status report information to the base station on the resource of the first uplink scheduling grant scheduling includes:

Determining the value of the buffer state corresponding to the logical channel or logical channel group carried in the buffer status report information;

The buffer status report information that includes the buffer state corresponding to the logical channel or the logical channel group is sent to the base station by using the resource scheduled by the first uplink scheduling grant.
The buffer status reporting method according to claim 3, wherein the determining a value of a buffer state corresponding to a logical channel or a logical channel group carried in the buffer status report information includes:

And determining, according to the scheduling resource end time corresponding to the first uplink scheduling permission, a value of a buffer state corresponding to the logical channel or the logical channel group that is to be carried in the buffer status report information.
The buffer status reporting method according to claim 1, further comprising:

If there is a piggybacking BSR, the piggybacked BSR is sent to the base station by using the resource scheduled by the second uplink scheduling grant;

The second uplink scheduling grant is an uplink scheduling grant of the plurality of uplink scheduling grants except the first uplink scheduling grant.
The buffer status reporting method according to claim 5, wherein the using the resource of the second uplink scheduling grant scheduling to send the piggybacking BSR to the base station comprises:

Determining a buffer state corresponding to a logical channel or a logical channel group carried in the piggybacking BSR;

The piggybacking BSR including the buffer state corresponding to the logical channel or the logical channel group is sent to the base station by using the resource scheduled by the second uplink scheduling grant.
The buffer status reporting method according to claim 6, wherein the determining a buffer status corresponding to a logical channel or a logical channel group carried in the piggybacking BSR includes:

The value of the buffer state corresponding to the logical channel or the logical channel group that needs to be carried in the piggybacking BSR is determined according to the scheduling resource ending time corresponding to the second uplink scheduling grant.
A terminal includes a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor; wherein the processor is configured to read a program in the memory and perform the following process:

If the terminal receives the uplink scheduling permission for the same preset time period that is sent by the base station, the first uplink scheduling permission for performing buffer status reporting is determined in the multiple uplink scheduling grants;

The transceiver is configured to send buffer status report information to the base station on the first uplink scheduling grant scheduling resource;

The buffer status report information includes: reporting a BSR or a periodic BSR in a normal buffer status.
The terminal of claim 8, wherein the processor is configured to read a program in the memory and perform the following process:

Determining, as the first uplink scheduling permission, the latest uplink scheduling permission of the scheduling resource ending time in the plurality of uplink scheduling grants; or

Determining, as the first uplink scheduling permission, the earliest uplink scheduling permission at the end of the scheduling resource in the plurality of uplink scheduling grants; or

At least two uplink scheduling grants are determined as the first uplink scheduling grant among the plurality of uplink scheduling grants.
The terminal of claim 8, wherein the processor is configured to read a program in the memory and perform the following process:

Determining the value of the buffer state corresponding to the logical channel or logical channel group carried in the buffer status report information;

The transceiver is configured to send, by using the first uplink scheduling grant scheduling resource, a buffer status report information that includes a value of a buffer state corresponding to the logical channel or a logical channel group to a base station.
The terminal of claim 10, wherein the processor is configured to read a program in the memory and perform the following process:

And determining, according to the scheduling resource end time corresponding to the first uplink scheduling permission, a value of a buffer state corresponding to the logical channel or the logical channel group that is to be carried in the buffer status report information.
The terminal of claim 8 wherein said transceiver is for:

If there is a piggybacking BSR, the piggybacked BSR is sent to the base station by using the resource scheduled by the second uplink scheduling grant;

The second uplink scheduling grant is an uplink scheduling grant of the plurality of uplink scheduling grants except the first uplink scheduling grant.
The terminal of claim 12, wherein the processor is configured to read a program in the memory and perform the following process:

Determining a buffer state corresponding to a logical channel or a logical channel group carried in the piggybacking BSR;

The transceiver is configured to send, by the piggyback BSR that takes the buffer state corresponding to the logical channel or the logical channel group, the resource scheduled by the second uplink scheduling grant to the base station.
The terminal of claim 13, wherein said processor is operative to read a program in the memory and perform the following process:

The value of the buffer state corresponding to the logical channel or the logical channel group that needs to be carried in the piggybacking BSR is determined according to the scheduling resource ending time corresponding to the second uplink scheduling grant.
A computer readable storage medium having stored thereon a computer program, wherein the computer program is executed by a processor to implement the steps of the buffer status reporting method according to any one of claims 1 to 7.
A terminal comprising:

a determining module, configured to determine, according to the multiple uplink scheduling grants for the same preset time period that are sent by the base station, the first uplink scheduling permission for performing buffer status reporting in the multiple uplink scheduling grants ;

a first sending module, configured to send buffer status report information to the base station on the resource of the first uplink scheduling grant scheduling;

The buffer status report information includes: reporting a BSR or a periodic BSR in a normal buffer status.
The terminal of claim 16, wherein the determining module is configured to:

Determining, as the first uplink scheduling permission, the latest uplink scheduling permission of the scheduling resource ending time in the plurality of uplink scheduling grants; or

Determining, as the first uplink scheduling permission, the earliest uplink scheduling permission at the end of the scheduling resource in the plurality of uplink scheduling grants; or

At least two uplink scheduling grants are determined as the first uplink scheduling grant among the plurality of uplink scheduling grants.
The terminal according to claim 16, wherein the first sending module comprises:

a first determining unit, configured to determine a value of a buffer state corresponding to a logical channel or a logical channel group that needs to be carried in the buffer status report information;

The first sending unit is configured to send the buffer status report information that includes the buffer state corresponding to the logical channel or the logical channel group to the base station by using the resource scheduled by the first uplink scheduling permission.
The terminal of claim 18, wherein the first determining unit is configured to:

And determining, according to the scheduling resource end time corresponding to the first uplink scheduling permission, a value of a buffer state corresponding to the logical channel or the logical channel group that is to be carried in the buffer status report information.
The terminal of claim 16, further comprising:

a second sending module, configured to: if the piggybacking BSR exists, send the piggybacking BSR to the base station by using the resource scheduled by the second uplink scheduling grant;

The second uplink scheduling grant is an uplink scheduling grant of the plurality of uplink scheduling grants except the first uplink scheduling grant.
The terminal of claim 20, wherein the second sending module comprises:

a second determining unit, configured to determine a buffer state value corresponding to the logical channel or the logical channel group that needs to be carried in the piggybacking BSR;

And a second sending unit, configured to send, by the piggyback BSR that takes the buffer state corresponding to the logical channel or the logical channel group, the resource scheduled by the second uplink scheduling grant to the base station.
The terminal according to claim 21, wherein said second determining unit is configured to:

The value of the buffer state corresponding to the logical channel or the logical channel group that needs to be carried in the piggybacking BSR is determined according to the scheduling resource ending time corresponding to the second uplink scheduling grant.