WO2018133802A1

WO2018133802A1 - Resource scheduling method, and base station and terminal

Info

Publication number: WO2018133802A1
Application number: PCT/CN2018/073085
Authority: WO
Inventors: 孙立新; 丁颖哲; 周明宇; 刘桂栋
Original assignee: 北京佰才邦技术有限公司
Priority date: 2017-01-17
Filing date: 2018-01-17
Publication date: 2018-07-26
Also published as: CN106550476A

Abstract

Provided are a resource scheduling method, and a base station and a terminal. The method comprises: receiving a resource scheduling request of a terminal, with the request comprising the size of an expectedly requested transmission block and an expectedly requested physical resource block; when a time interval between the current time and the last resource allocation time is within a pre-set period, or when the channel quality of the terminal changes within a pre-set range from the current time to the last resource allocation time, allocating a physical resource block to the terminal according to the situation of a coding and modulation mode of the last allocation, the size of the expectedly requested transmission block and the expectedly requested physical resource block, and a currently valid physical resource block; and when the time interval between the current time and the last resource allocation time exceeds the pre-set period, and when the channel quality changes beyond the pre-set range, executing a link self-adaptation algorithm so as to allocate resources to the terminal. According to the present application, when the channel quality changes within a pre-set range, scheduling information about the last link self-adaptation is multiplexed to allocate resources to a terminal, thereby reducing the time needed for allocating the resources to the terminal.

Description

Resource scheduling method and base station and terminal

This application claims the priority of the Chinese Patent Application filed on Jan. 17, 2017, the application number of the Japanese Patent Application No. 201710036279.2, entitled "A Resource Scheduling Method and Base Station and Terminal", the entire contents of which are incorporated herein by reference. In the application.

Technical field

The present application relates to communications technologies, and in particular, to a resource scheduling method, a base station, and a terminal.

Background technique

Mobile operators use small stations, such as Evolved Node B (eNB), to extend coverage and increase network capacity. In indoor deployment, the application scenarios of small stations are roughly divided into three categories: family, enterprise, and public area. When deploying a small station in a home, it generally does not pay attention to the number of user accesses, nor does it pay attention to coverage requirements. Enterprises or public areas, such as schools, government, corporate offices, cafes, shopping malls, libraries, hotels, these places are crowded, access is large, and coverage is generally required to be within 10 to 100 meters.

In the process of implementing the present application, the applicant found that the prior art has at least the following problems:

Due to the limited hardware of the small station, the number of users that can be served by each small station is relatively small, and the delay of a large number of users requesting the service at the same time is relatively long. In order to solve such problems, it is often to increase the network capacity by increasing the number of sites. However, increasing site deployment results in large inter-cell interference and increases installation and maintenance costs. Therefore, the service quality of the small stations in the prior art is poor and cannot meet the needs of users.

Application content

The purpose of the present application is to provide a resource scheduling method, a base station, and a terminal, which effectively increase the number of users scheduled by the small station and reduce the scheduled delay of the user. purpose.

To achieve the foregoing, the embodiment of the present application provides a resource scheduling method, including:

Receiving a resource scheduling request of the terminal, where the resource scheduling application includes a transport block size of an expected application and a physical resource block of an expected application;

The time interval between the current time and the last resource allocation time is within a preset period, or the channel quality change of the terminal between the current time and the last resource allocation time is within a preset range, according to the last allocated The coding and modulation scheme, the transport block size of the desired application, and the physical resource block of the desired application and the currently valid physical resource block are allocated physical resource blocks for the terminal.

Optionally, the physical resource block is allocated to the terminal according to the last allocated coding and modulation mode, the transmission block size of the application, the physical resource block of the application, and the currently valid physical resource block, including:

If the currently valid physical resource block satisfies the physical resource block of the expected application, determining that the physical resource block allocated for the terminal is a physical resource block that is expected to be applied, and determining the currently used modulation and coding mode and the last time allocating resources for the terminal The modulation used is the same as the encoding.

Optionally, if the currently valid physical resource block does not satisfy the physical resource block of the expected application, determine the terminal allocation according to the last allocated modulation and coding mode, the expected transport block size, and the currently valid physical resource block. The physical resource block and transport block size, and determine that the modulation and coding mode currently used is the same as the modulation and coding used when the resource was last allocated to the terminal.

Optionally, after receiving the resource scheduling application of the user, the method further includes:

If the difference between the signal-to-noise ratio of the current time and the signal-to-noise ratio of the last resource allocation time is greater than the first preset value, or is less than the second preset value, determining that the terminal is from the current time The channel quality change between the last resource allocation time exceeded the preset range.

Optionally, the signal to interference and noise ratio of the terminal at the current time is determined according to noise and interference, power headroom reporting, and outer loop adjustment.

To achieve the above objective, in another aspect, an embodiment of the present application provides a base station, including:

a transmission module, configured to receive a resource scheduling application of the terminal, a transport block size of the expected application, and a physical resource block that is expected to be applied;

a processing module, configured to: when a time interval between a current time and a last resource allocation time is within a preset period, or when a channel quality change of the terminal is between a preset time and a current resource allocation time, The physical resource block is allocated to the terminal according to the last assigned coding and modulation mode, the transport block size of the desired application, and the physical resource block of the desired application and the currently valid physical resource block.

Optionally, the processing module is further used to

If the currently valid physical resource block satisfies the physical resource block of the expected application, determining that the physical resource block allocated for the terminal is a physical resource block that is expected to be applied, and determining the currently used modulation and coding mode and the last time allocating resources for the terminal The modulation used is the same as the encoding;

If the currently valid physical resource block does not satisfy the physical resource block of the expected application, determine the physical resource allocated for the terminal according to the modulation and coding mode that was last allocated, the transport block size of the desired application, and the currently valid physical resource block. The block and transport block sizes are determined and the modulation and coding scheme currently used is the same as the modulation and coding used when the resource was last allocated to the terminal.

Optionally, the processing module is further configured to: if the channel quality change of the terminal from the current time to the last resource allocation time is within a preset range; the signal to interference and noise ratio of the terminal at the current time and the last resource The difference between the signal to interference and noise ratio of the allocated time is greater than the first preset value, or is less than the second preset value, and the channel quality change between the current time and the last resource allocation time of the terminal is determined to exceed the preset range.

Optionally, the processing module is further configured to determine a signal to interference and noise ratio of the terminal at a current time according to noise and interference, power headroom reporting, and outer loop adjustment.

In order to achieve the above object, an embodiment of the present application further provides a base station, including: a transmitter, a receiver, a memory, and a processor respectively connected to the transmitter, the receiver, and the memory; wherein the memory stores one Group program code, and the processor is configured to call program code stored in the memory,

The receiver is configured to acquire a resource scheduling application of the terminal, where the resource scheduling includes a transport block size of an expected application and a physical resource block that is expected to be applied;

The processor is further configured to: perform a time interval between a current time and a last resource allocation time in a preset period, or a channel quality change of the terminal from a current time to a last resource allocation time When in the preset range, the terminal is allocated a physical resource block according to the last assigned coding and modulation mode, the transport block size of the desired application, the physical resource block of the desired application, and the currently valid physical resource block.

Optionally, the processor is further configured to: if the currently valid physical resource block satisfies the physical resource block of the expected application, determine that the physical resource block allocated for the terminal is a physical resource block that is expected to be applied, and It is determined that the modulation and coding method currently used is the same as the modulation and coding method used when the resource was last allocated to the terminal.

Optionally, the processor is further configured to: if the currently valid physical resource block does not satisfy the physical resource block of the expected application, according to a modulation and coding manner that is allocated last time, a transport block size that is expected to be applied, and The currently valid physical resource block determines the physical resource block and transport block size allocated for the terminal, and determines that the currently used modulation and coding mode is the same as the modulation and coding mode used when the resource was last allocated for the terminal.

Optionally, the processor is further configured to: if the difference between the signal to interference and noise ratio of the terminal at the current time and the signal to interference and noise ratio of the last resource allocation time is greater than the first preset value, Or, less than the second preset value, determining that the channel quality change between the current time and the last resource allocation time of the terminal exceeds a preset range.

Optionally, the processor is further configured to: determine a signal to interference and noise ratio of the terminal at a current time according to noise and interference, power headroom reporting, and outer loop adjustment.

In order to achieve the above object, the embodiment of the present application further provides another resource scheduling method, including:

Sending a resource scheduling request to the base station, where the resource scheduling request includes a transport block size of an expected application and a physical resource block of an expected application;

Receiving, by the base station, a resource allocation message, where the resource allocation message includes a physical resource block allocated to the terminal, where a time interval between the current time and the last resource allocation time is within a preset period, or When the channel quality change of the terminal between the time and the last resource allocation time is within a preset range, the base station is valid according to the last allocated coding and modulation mode, the transport block size of the desired application, and the physical resource block of the desired application. a physical resource block, determining to allocate a physical resource block for the terminal.

Optionally, if the currently valid physical resource block satisfies the physical resource block of the expected application, the physical resource block allocated for the terminal is a physical resource block that is expected to be applied, and the currently used modulation and coding mode is last used as a terminal. The modulation used in the allocation of resources is the same as the encoding.

Optionally, if the currently valid physical resource block does not satisfy the physical resource block of the expected application, the physical resource block and the transport block size allocated for the terminal, according to the modulation and coding manner allocated last time, and the transport block size of the desired application. And the currently valid physical resource block is determined, and the currently used modulation and coding mode is the same as the modulation and coding method used when the resource was last allocated to the terminal.

Optionally, if the difference between the signal to interference and noise ratio of the current time and the signal to interference and noise ratio of the last resource allocation time is greater than the first preset value, or is less than the second preset value, determining The channel quality change between the current time and the last resource allocation time of the terminal exceeds a preset range.

In order to achieve the above object, in another aspect, an embodiment of the present application further provides a terminal, including: a transmitter, a receiver, a memory, and a processor respectively connected to a transmitter, a receiver, and a memory; wherein the memory is stored a set of program code, and the processor is configured to call program code stored in the memory;

The transmitter is configured to send a resource scheduling request to a base station, where the resource scheduling request includes a transport block size of a desired application and a physical resource block that is expected to be applied;

The receiver is configured to receive a resource allocation message sent by the base station, where the resource allocation message includes a physical resource block allocated to the terminal, where a time interval between the current time and the last resource allocation time is preset During the period, or when the channel quality change of the terminal between the current time and the last resource allocation time is within a preset range, the base station according to the last allocated coding and modulation mode, the expected transmission block size and the expected application The physical resource block and the currently valid physical resource block determine to allocate a physical resource block for the terminal.

Optionally, if the currently valid physical resource block satisfies the physical resource block of the expected application, the physical resource block allocated to the terminal if the currently valid physical resource block does not satisfy the physical resource block of the expected application, and the physical allocated to the terminal The resource block and the transport block size are determined according to the modulation and coding mode allocated last time, the transport block size expected to be applied, and the currently valid physical resource block, and the currently used modulation and coding scheme is used when the resource is allocated for the terminal last time. Modulation is the same as encoding.

Optionally, if the currently valid physical resource block satisfies the physical resource block of the expected application, the information assigned to the terminal is a signal to interference and noise ratio of the terminal at the current time, the signal to interference and noise ratio and the last resource allocation time. The difference between the difference between the current time and the last resource allocation time is greater than the preset value.

In order to achieve the above object, the embodiment of the present application further provides another resource scheduling apparatus, including:

An application module, configured to send a resource scheduling request to the base station, where the resource scheduling application includes a transport block size of an expected application and a physical resource block that is expected to be applied;

a receiving module, configured to receive a resource allocation message sent by the base station, where the resource allocation message includes a physical resource block allocated to the terminal, where a time interval between the current time and the last resource allocation time is within a preset period Or, when the channel quality change of the terminal between the current time and the last resource allocation time is within a preset range, the base station according to the last allocated coding and modulation mode, the expected transmission block size, and the physical expected application The resource block and the currently valid physical resource block determine to allocate a physical resource block for the terminal.

In the technical solution provided by the present application, when the scheduling time interval is within a preset period and the channel quality changes within a preset range, the scheduling information of the last link adaptation is multiplexed to allocate resources for the terminal, and the link does not need to be re-executed. The adaptation algorithm improves the number of users scheduled for each transmission time interval TTI, increases the number of users per site service, reduces the delay for users to wait for scheduling, improves the quality of service for end users, and reduces the number of sites deployed. Reduce maintenance costs; reduce system requirements for hardware resources such as CPU, thereby reducing the cost of the entire site.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present application. One of ordinary skill in the art can also obtain other drawings based on these drawings without paying for inventive labor.

1 is a schematic flowchart of a resource scheduling method provided by the present application;

2 is a schematic flowchart of another resource scheduling method provided by the present application;

FIG. 3 is a schematic structural diagram of a base station provided by the present application; FIG.

4 is a schematic structural diagram of another base station provided by the present application;

FIG. 5 is a schematic flowchart of still another resource scheduling method provided by the present application;

FIG. 6 is a schematic structural diagram of a terminal provided by the present application; FIG.

FIG. 7 is a schematic structural diagram of another terminal provided by the present application.

detailed description

For a better understanding of the technical solutions of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

It should be understood that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present application.

The terms used in the embodiments of the present application are for the purpose of describing particular embodiments only, and are not intended to limit the application. The singular forms "a", "the", and "the"

In the process of implementing the present application, the applicant can know that the coverage of the small station is small, the service user has the characteristics of poor mobility, and the quality of the user channel in the small station is almost unchanged or the change is relatively slow. When the user channel quality variation is within a preset range, the scheduling information of the last link adaptation may be multiplexed to reduce the time for each terminal to allocate resources, thereby increasing the number of users scheduled by each child. The number of users scheduled by each child is increased, which can reduce the delay of waiting for scheduling and increase the number of users that can be served. Therefore, the problem of poor user experience can be solved, and installation and maintenance costs can be avoided by avoiding deploying too many small stations.

FIG. 1 is a schematic flowchart of a resource scheduling method provided by the present application. The execution body of this embodiment may be a type of base station such as a small station, a micro base station, or a macro base station. As shown in FIG. 1, the method provided in this embodiment includes:

Step 101: Receive a resource scheduling application of a terminal, where the application includes a physical resource block of an expected application and a transport block size of an expected application.

Step 102: When the time interval between the current time and the last resource allocation time is within a preset period, or when the channel quality change of the terminal between the current time and the last resource allocation time is within a preset range, The physical resource block is allocated to the terminal according to the last assigned coding and modulation mode, the transport block size of the desired application, and the physical resource block of the desired application and the currently valid physical resource block.

The last resource allocation time is the time when the resource was last allocated to the terminal.

The time interval between the current time and the last resource allocation time is within a preset period, indicating that the time for the last time to allocate resources to the terminal is shorter. To avoid frequent calculations, the scheduling information of the last link adaptation may be multiplexed. There is no need to re-execute the link adaptation algorithm. The channel quality change of the terminal from the current time to the last resource allocation time is within a preset range, indicating that the channel of the terminal is almost unchanged or changes slowly from the current time to the last resource allocation time, in order to reduce the time for allocating resources to the terminal, The scheduling information of the last link adaptation may be multiplexed. Specifically, if the PRB resources are sufficient, the PRB and the MCS are multiplexed. If the PRB resources are insufficient, only the MCS is multiplexed, and the link adaptation algorithm is not required to be re-executed.

The physical resource block is allocated to the terminal according to the last assigned coding and modulation scheme, the transport block size expected to be applied, and the physical resource block of the desired application and the currently valid physical resource block. Specifically, it can be:

Determining whether the currently valid physical resource block satisfies the physical resource block of the expected application; if yes, allocate sufficient physical resource blocks (PRBs) for the terminal, that is, allocate the physics of the desired application to the terminal. Resource block. If not, the physical resource block is allocated to the terminal according to the modulation and coding mode of the last allocation, the Transmission Block Size (TBS) and the currently valid physical resource block.

When the time interval between the current time and the last resource allocation time exceeds a preset period, and the channel quality changes exceed the preset range, performing a link adaptation algorithm to perform resource allocation for the terminal.

The link adaptation algorithm is a prior art, which determines the capacity of the current channel according to the channel condition, and then changes the symbol rate, the transmission rate, and the Modulation and Coding Scheme (MCS) parameters of the transmission information. The transmission format of the MCS includes parameters such as the transmission data encoding rate and modulation mode. A link adaptation algorithm is implemented to obtain a transmission resource block, a transport block size, and an MCS, and allocate resources for the terminal.

In the method provided in this embodiment, when the channel quality change is within a preset range, the scheduling information of the last link adaptation is multiplexed to allocate resources for the terminal, and the link adaptation algorithm does not need to be re-executed, thereby reducing the central processor. The consumption of resources reduces the time for allocating resources to the terminal, thereby increasing the number of users scheduled for each child and improving the quality of service for the terminal users. The number of users scheduled by each child is increased, which can reduce the delay of waiting for scheduling and increase the number of users that can be served, and can avoid deploying too many small stations.

FIG. 2 is a schematic flowchart of another resource scheduling method provided by the present application. As shown in FIG. 2, the method provided in this embodiment includes:

Step 200: Cycle all terminals that can be scheduled one by one until all terminals are scheduled.

Step 201: Determine, for the terminal that can be scheduled currently, whether the time interval Δtime between the current time and the last resource allocation time is within a preset period. If it is within the preset period, step 202 is performed, otherwise step 206 is performed.

The last resource allocation time LastTime refers to the time when the resource was last allocated to the terminal. It is judged whether the time interval Δtime between the current time CurrentTime and the time when the resource was last allocated to the terminal is within a preset period. If it is within the preset period, it is further determined whether the channel quality change of the terminal is within a preset range. If not in the preset period, the link adaptation algorithm is re-executed to allocate resources to the terminal.

Step 202: The time interval between the current time and the last resource allocation time is within a preset period, and the terminal is determined according to the signal to interference and noise ratio of the terminal at the current time and the signal to interference and noise ratio of the last resource allocation time. Whether the channel quality change from the current time to the last resource allocation time is within a preset range. If it is within the preset range, step 203 is performed, otherwise step 206 is performed.

The Signal to Interference and Noise Ratio (SINR) of the terminal at the current time is determined according to the noise and interference, the Power Headroom Report (PHR), and the outer loop adjustment.

The difference Δsinr between the signal to interference and noise ratio CurrentSinr of the current time and the signal to interference and noise ratio LastSinr of the last resource allocation time is greater than the first preset difference value Δ1, or smaller than the second preset difference value Δ2, Then it is determined that the channel quality changes exceed the preset range. Determining the channel quality between the first preset difference Δ1 and the second preset difference Δ2 by the difference between the signal to interference and noise ratio of the current time and the signal to interference and noise ratio of the last resource allocation time The change does not exceed the preset range, that is, there is no change or change slowly. The difference between the signal to interference and noise ratio of the current time and the signal to interference and noise ratio of the last resource allocation time is greater than the first preset difference Δ1, indicating that the channel quality is better; less than the second preset difference Δ2, indicating The channel quality is degraded. The introduction of the first preset difference Δ1 and the second preset difference Δ2 is to avoid a ping-pong scene of SINR.

Step 203: Determine whether the currently valid physical resource block Aprb satisfies the physical resource block (Eprb) of the desired application; if yes, execute step 204, otherwise perform step 205.

Step 204: If yes, determine that the physical resource block finally allocated for the terminal is a physical resource block that is expected to be applied, and determine that the current MCS is the same as the modulation and coding mode MCS used when the resource is allocated for the terminal last time.

If the currently valid physical resource block Aprb satisfies the physical resource block Eprb of the desired application, the physical resource block Cprb finally allocated for the terminal is the physical resource block Eprb of the desired application, and the current MCS multiplexes the last used resource allocation for the terminal. Modulation and coding mode MCS. Thereafter, returning to step 200, the next available terminal is cycled until it is cycled to all terminals that can be scheduled.

Step 205: If not satisfied, determine the physical resource block and the transport block size finally allocated for the terminal according to the last allocated modulation and coding mode MCS case, the transport block size Etbs of the desired application, and the currently valid physical resource block Aprb, and It is determined that the current MCS is the same as the modulation and coding mode MCS used when the resource was last allocated to the terminal. Thereafter, returning to step 200, the next available terminal is cycled until it is cycled to all terminals that can be scheduled.

When the currently valid physical resource block Aprb meets the physical resource block Eprb of the desired application, the physical resource block allocated for the terminal is the physical resource block to be applied for, and the last resource allocation time is the MCS allocated by the terminal; currently valid When the physical resource block Aprb does not satisfy the physical resource block Eprb of the desired application, only the MCS allocated by the last resource allocation time is multiplexed, and the physical resource block and the transport block size allocated for the terminal are recalculated.

Step 206: When the time interval between the current time and the last resource allocation time exceeds a preset period, and the channel quality changes exceed the preset range, performing a link adaptation algorithm to obtain a physical resource block and a transport block size allocated for the terminal And MCS. Thereafter, returning to step 200, the next available terminal is cycled until it is cycled to all terminals that can be scheduled.

In the method provided in this embodiment, when the scheduling time interval is within a preset period and the channel quality changes within a preset range, the scheduling information of the last link adaptation is multiplexed to allocate resources for the terminal, and the link does not need to be re-executed. The adaptation algorithm improves the number of users scheduled for each transmission time interval TTI, increases the number of users per site service, reduces the delay for users to wait for scheduling, improves the quality of service for end users, and reduces the number of sites deployed. Reduce maintenance costs; reduce system requirements for hardware resources such as CPU, thereby reducing the cost of the entire site.

FIG. 3 is a schematic structural diagram of a base station provided by the present application. As shown in FIG. 3, the base station provided in this embodiment includes: a transmission module 31 and a processing module 32.

The transmission module 31 is configured to receive a resource scheduling application of the terminal, a transport block size of the expected application, and a physical resource block that is expected to be applied;

The processing module 32 is configured to: when the time interval between the current time and the last resource allocation time is within a preset period, or when the channel quality change of the current time to the last resource allocation time is within a preset range, according to the last time The allocated coding and modulation scheme, the transport block size of the desired application, and the physical resource block of the desired application and the currently valid physical resource block are allocated physical resource blocks for the terminal.

Optionally, the processing module is further configured to: when the time interval between the current time and the last resource allocation time exceeds a preset period, and the channel quality changes exceed the preset range, performing a link adaptation algorithm is The terminal performs resource allocation.

Optionally, the processing module 32 is further configured to: if the currently valid physical resource block meets the physical resource block of the expected application, determine that the physical resource block allocated to the terminal is a physical resource block that is expected to be applied, and determine the current The modulation and coding method used is the same as the modulation and coding method used when the resource was last allocated to the terminal;

Optionally, the processing module 32 is further configured to: if the currently valid physical resource block does not satisfy the physical resource block of the expected application, according to a modulation and coding manner that is allocated last time, a transport block size that is expected to be applied, and a current valid The physical resource block determines the physical resource block and the transport block size allocated for the terminal, and determines that the currently used modulation and coding mode is the same as the modulation and coding mode used when the resource was last allocated for the terminal.

Optionally, the processing module 32 is further configured to: if the channel quality change of the terminal from the current time to the last resource allocation time is within a preset range; the signal to interference and noise ratio of the terminal at the current time and the last time The difference between the signal-to-noise ratio of the resource allocation time is greater than the first preset value, or is less than the second preset value, and the channel quality change of the current time of the terminal to the last resource allocation time is determined to exceed the preset range. Specifically, the processing module 32 is further configured to: after receiving the resource scheduling application of the user, determine, according to the signal to interference and noise ratio of the terminal at the current time and the signal to interference and noise ratio of the last resource allocation time, Whether the channel quality change from the current time to the last resource allocation time is within a preset range; the difference between the signal to interference and noise ratio of the terminal at the current time and the signal to interference and noise ratio of the last resource allocation time is greater than the first pre-predetermined range The value is set, or is less than the second preset value, and the channel quality change is determined to exceed the preset range.

Optionally, the processing module 32 is further configured to determine a signal to interference and noise ratio of the terminal at a current time according to noise and interference, power headroom reporting, and outer loop adjustment. Specifically, the processing module 32 is further configured to: determine, according to a signal to interference and noise ratio of the terminal at a current time, a signal to interference and noise ratio, the current time from the current time to the last resource allocation time. Before the channel quality change is within the preset range, the signal to interference and noise ratio of the terminal at the current time is determined according to noise and interference, power headroom reporting and outer loop adjustment.

The base station provided by the present application, when the scheduling time interval is within a preset period and the channel quality changes within a preset range, multiplexing the last link adaptive scheduling information to allocate resources for the terminal, and does not need to re-execute the link adaptation algorithm. The number of users scheduled for each transmission time interval TTI is increased, the number of users per site service is increased, the delay of waiting for scheduling is reduced, the quality of service for the end user is improved, and the number of sites deployed is reduced to reduce maintenance. Cost; reduce the system's requirements for hardware resources such as CPU, thereby reducing the cost of the entire site.

As shown in FIG. 4, the embodiment of the present application further provides a base station, including: a transmitter 422, a receiver 421, a memory 423, and a processor 424 respectively connected to a transmitter, a receiver, and a memory; wherein, in the memory Storing a set of program code, and the processor is configured to call program code stored in the memory,

The receiver is configured to acquire a resource scheduling request of a terminal, where the resource scheduling includes a transport block size of an expected application and a physical resource block that is expected to be applied;

Optionally, the processor is further configured to:

As shown in FIG. 5, the embodiment of the present application further provides another resource scheduling method, including:

Step 501: Send a resource scheduling application to the base station, where the resource scheduling application includes a transport block size of an expected application and a physical resource block that is expected to be applied;

Step 502: Receive a resource allocation message sent by the base station, where the resource allocation message includes a physical resource block allocated to the terminal, where a time interval between the current time and the last resource allocation time is within a preset period, or The base station according to the last assigned coding and modulation mode, the expected transmission block size, and the physical resource block of the desired application, when the channel quality change of the terminal is between the current time and the last resource allocation time. And the currently valid physical resource block, determining to allocate a physical resource block for the terminal.

As shown in FIG. 6, the embodiment of the present application further provides a terminal, including: a transmitter 621, a receiver 622, a memory 623, and a processor 624 respectively connected to a transmitter, a receiver, and a memory; wherein, in the memory Storing a set of program code, and the processor is configured to call program code stored in the memory;

As shown in FIG. 7, the embodiment of the present application further provides another resource scheduling apparatus, including:

The application module 701 is configured to send a resource scheduling request to the base station, where the resource scheduling application includes a transport block size of the desired application and a physical resource block of the desired application;

The receiving module 702 is configured to receive a resource allocation message sent by the base station, where the resource allocation message includes a physical resource block allocated to the terminal, where a time interval between the current time and the last resource allocation time is in a preset period. Or, when the channel quality change of the terminal between the current time and the last resource allocation time is within a preset range, the base station according to the last allocated coding and modulation mode, the expected transmission block size, and the desired application The physical resource block and the currently valid physical resource block determine to allocate a physical resource block for the terminal.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

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

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

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

The above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform the methods of the various embodiments of the present application. Part of the steps. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

Finally, it should be noted that the above embodiments are only for explaining the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present application. range.

Claims

A resource scheduling method, comprising:

Obtaining a resource scheduling request of the terminal, where the resource scheduling includes a transport block size of an expected application and a physical resource block of an expected application;

The time interval between the current time and the last resource allocation time is within a preset period, or the channel quality change of the terminal between the current time and the last resource allocation time is within a preset range, according to the last allocated The coding and modulation scheme, the transport block size of the desired application, and the physical resource block of the desired application and the currently valid physical resource block are allocated physical resource blocks for the terminal.
The method according to claim 1, wherein the terminal is allocated a physical according to the last assigned coding and modulation mode, the transport block size of the desired application, the physical resource block of the desired application, and the currently valid physical resource block. Resource blocks, including:

If the currently valid physical resource block satisfies the physical resource block of the expected application,

It is determined that the physical resource block allocated for the terminal is a physical resource block that is expected to be applied, and it is determined that the currently used modulation and coding mode is the same as the modulation and coding mode used when the resource is allocated for the terminal last time.
The method according to claim 1 or 2, wherein, according to the last assigned coding and modulation mode, the transport block size of the desired application, the physical resource block of the desired application, and the currently valid physical resource block, The terminal allocates physical resource blocks, including:

If the currently valid physical resource block does not satisfy the physical resource block of the desired application, determine the physical resource block allocated for the terminal according to the modulation and coding mode that was last allocated, the transport block size that is expected to be applied, and the currently valid physical resource block. And transport block size, and determine that the modulation and coding method currently used is the same as the modulation and coding used when the resource was last allocated to the terminal.
The method according to claim 1 or 2, further comprising: after acquiring the resource scheduling application of the user, the method further comprising:

If the difference between the signal-to-noise ratio of the current time and the signal-to-noise ratio of the last resource allocation time is greater than the first preset value, or is less than the second preset value, determining that the terminal is from the current time The channel quality change between the last resource allocation time exceeded the preset range.
The method according to claim 4, further comprising: determining a signal to interference and noise ratio of the terminal at a current time according to noise and interference, power headroom reporting, and outer loop adjustment.
A resource scheduling device, comprising:

a transmission module, configured to receive a resource scheduling application of the terminal, where the resource scheduling includes a transport block size that is expected to be applied and a physical resource block that is expected to be applied;

a processing module, configured to: when a time interval between a current time and a last resource allocation time is within a preset period, or when a channel quality change of the terminal is between a preset time and a current resource allocation time, The physical resource block is allocated to the terminal according to the last assigned coding and modulation mode, the transport block size of the desired application, and the physical resource block of the desired application and the currently valid physical resource block.
The apparatus according to claim 6, wherein said processing module is further configured to

If the currently valid physical resource block satisfies the physical resource block of the desired application, if it is satisfied, the physical resource block allocated to the terminal is determined to be a physical resource block to be applied for, and the currently used modulation and coding mode is determined to be the last time The modulation used by the terminal to allocate resources is the same as the encoding.
The device according to claim 6 or 7, wherein the processing module is further used for

If the currently valid physical resource block does not satisfy the physical resource block of the desired application, determine the physical resource block allocated for the terminal according to the modulation and coding mode that was last allocated, the transport block size that is expected to be applied, and the currently valid physical resource block. And transport block size, and determine that the modulation and coding mode currently used is the same as the modulation and coding used when the resource was last allocated to the terminal.
The device according to claim 6 or 7, wherein the processing module is further configured to: after receiving the resource scheduling request of the user, if the terminal has a signal to interference and noise ratio at the current time and the last resource allocation time The difference between the signal to interference and noise ratio is greater than the first preset value, or is less than the second preset value, and determines that the channel quality change between the current time and the last resource allocation time of the terminal exceeds a preset range.
The apparatus according to claim 9, wherein the processing module is further configured to determine a signal to interference and noise ratio of the terminal at a current time according to noise and interference, power headroom reporting, and outer loop adjustment.
A base station, comprising: a transmitter, a receiver, a memory, and a processor respectively connected to the transmitter, the receiver, and the memory; wherein the memory stores a set of program codes, and the processor is used by the processor Calling the program code stored in the memory,

The receiver is configured to acquire a resource scheduling request of a terminal, where the resource scheduling includes a transport block size of an expected application and a physical resource block that is expected to be applied;

The processor is further configured to: perform a time interval between a current time and a last resource allocation time in a preset period, or a channel quality change of the terminal from a current time to a last resource allocation time When in the preset range, the terminal is allocated a physical resource block according to the last assigned coding and modulation mode, the transport block size of the desired application, the physical resource block of the desired application, and the currently valid physical resource block.
The base station according to claim 11, wherein the processor is further configured to:

If the currently valid physical resource block satisfies the physical resource block of the expected application, determining that the physical resource block allocated for the terminal is a physical resource block that is expected to be applied, and determining the currently used modulation and coding mode and the last time allocating resources for the terminal The modulation used is the same as the encoding.
The base station according to claim 11 or 12, wherein the processor is further configured to: if the currently valid physical resource block does not satisfy the physical resource block of the expected application, according to the last allocated modulation Determining the physical resource block and the transport block size allocated for the terminal, and determining the currently used modulation and coding mode and the last used resource allocation for the terminal, together with the coding mode, the transport block size of the desired application, and the currently valid physical resource block. Modulation is the same as encoding.
The base station according to claim 11 or 12, wherein the processor is further configured to: if the signal to interference and noise ratio of the terminal at the current time and the last resource allocation time, The difference between the difference is greater than the first preset value, or is less than the second preset value, and the channel quality change between the current time and the last resource allocation time of the terminal is determined to exceed a preset range.
The base station according to claim 11 or 12, wherein the processor is further configured to: determine, according to noise and interference, power headroom reporting and outer loop adjustment, the terminal at the current time Noise ratio.
A resource scheduling method, comprising:

Sending a resource scheduling request to the base station, where the resource scheduling request includes a transport block size of an expected application and a physical resource block of an expected application;

Receiving, by the base station, a resource allocation message, where the resource allocation message includes a physical resource block allocated to the terminal, where a time interval between the current time and the last resource allocation time is within a preset period, or When the channel quality change of the terminal between the time and the last resource allocation time is within a preset range, the base station is valid according to the last allocated coding and modulation mode, the transport block size of the desired application, and the physical resource block of the desired application. a physical resource block, determining to allocate a physical resource block for the terminal.
The method according to claim 16, wherein if the currently valid physical resource block satisfies the physical resource block of the expected application, the physical resource block allocated for the terminal is a physical resource block that is expected to be applied, and is currently used. The modulation and coding scheme is the same as the modulation and coding method used when the resource was last allocated to the terminal.
The method according to claim 16 or 17, wherein if the currently valid physical resource block does not satisfy the physical resource block of the expected application, the physical resource block and the transport block size allocated for the terminal are based on the last allocated The modulation and coding scheme, the transport block size of the desired application, and the currently valid physical resource block are determined, and the modulation and coding scheme currently used is the same as the modulation and coding scheme used when the resource was last allocated for the terminal.
The method according to claim 16 or 17, wherein if the difference between the signal to interference and noise ratio of the terminal at the current time and the signal to interference and noise ratio of the last resource allocation time is greater than the first preset value, Or, less than the second preset value, determining that the channel quality change between the current time and the last resource allocation time of the terminal exceeds a preset range.
A terminal, comprising: a transmitter, a receiver, a memory, and a processor respectively connected to the transmitter, the receiver, and the memory; wherein the memory stores a set of program codes, and the processor is used by the processor Calling program code stored in the memory;

The transmitter is configured to send a resource scheduling request to a base station, where the resource scheduling request includes a transport block size of a desired application and a physical resource block that is expected to be applied;

The receiver is configured to receive a resource allocation message sent by the base station, where the resource allocation message includes a physical resource block allocated to the terminal, where a time interval between the current time and the last resource allocation time is preset During the period, or when the channel quality change of the terminal between the current time and the last resource allocation time is within a preset range, the base station according to the last allocated coding and modulation mode, the expected transmission block size and the expected application The physical resource block and the currently valid physical resource block determine to allocate a physical resource block for the terminal.
The terminal according to claim 20, wherein if the currently valid physical resource block satisfies the physical resource block of the expected application, the physical resource block allocated for the terminal is a physical resource block that is expected to be applied, and is currently used. The modulation and coding scheme is the same as the modulation and coding method used when the resource was last allocated to the terminal.
The terminal according to claim 20 or 21, wherein if the currently valid physical resource block does not satisfy the physical resource block of the expected application, the physical resource block and the transport block size allocated for the terminal are based on the last allocated The modulation and coding scheme, the transport block size of the desired application, and the currently valid physical resource block are determined, and the modulation and coding scheme currently used is the same as the modulation and coding scheme used when the resource was last allocated for the terminal.
The terminal according to claim 20 or 21, wherein if the difference between the signal to interference and noise ratio of the terminal at the current time and the signal to interference and noise ratio of the last resource allocation time is greater than the first preset value, Or, less than the second preset value, determining that the channel quality change between the current time and the last resource allocation time of the terminal exceeds a preset range.
A resource scheduling device, comprising:

An application module, configured to send a resource scheduling request to the base station, where the resource scheduling application includes a transport block size of an expected application and a physical resource block that is expected to be applied;

a receiving module, configured to receive a resource allocation message sent by the base station, where the resource allocation message includes a physical resource block allocated to the terminal, where a time interval between the current time and the last resource allocation time is within a preset period Or, when the channel quality change of the terminal between the current time and the last resource allocation time is within a preset range, the base station according to the last allocated coding and modulation mode, the expected transmission block size, and the physical expected application The resource block and the currently valid physical resource block determine to allocate a physical resource block for the terminal.
The device according to claim 24, wherein if the currently valid physical resource block satisfies the physical resource block of the expected application, the physical resource block allocated for the terminal is a physical resource block that is expected to be applied, and is currently used. The modulation and coding scheme is the same as the modulation and coding method used when the resource was last allocated to the terminal.
The apparatus according to claim 24 or 25, wherein if the currently valid physical resource block does not satisfy the physical resource block of the desired application, the physical resource block and the transport block size allocated for the terminal are based on the last allocated The modulation and coding scheme, the transport block size of the desired application, and the currently valid physical resource block are determined, and the modulation and coding scheme currently used is the same as the modulation and coding scheme used when the resource was last allocated for the terminal.
The device according to claim 24 or 25, wherein if the difference between the signal to interference and noise ratio of the terminal at the current time and the signal to interference and noise ratio of the last resource allocation time is greater than the first preset value, Or, less than the second preset value, determining that the channel quality change between the current time and the last resource allocation time of the terminal exceeds a preset range.