WO2017020162A1

WO2017020162A1 - Resource scheduling method, device and base station

Info

Publication number: WO2017020162A1
Application number: PCT/CN2015/085690
Authority: WO
Inventors: 赵振山; 于峰
Original assignee: 华为技术有限公司
Priority date: 2015-07-31
Filing date: 2015-07-31
Publication date: 2017-02-09
Also published as: CN107113840B; CN107113840A

Abstract

Embodiments of the present invention relates to a resource scheduling method, a device and a base station, the method being used for scheduling resources for multiple terminals adopting a Device to Device (D2D) communication mode in a current cell. The method comprises: acquiring the number of users to be scheduled in a neighbor cell of the current cell in a next scheduling period; according to the number of the users to be scheduled in the neighbor cell, determining, among the transmission resources of the neighbor cell, a first transmission resource required by scheduling the number of the users to be scheduled in the neighbor cell; when the next scheduling period comes, according to the determined first transmission resource, scheduling each terminal of the multiple terminals to the transmission resources of the current cell except the first transmission resource. Therefore, in the resource scheduling method provided by the embodiments of the present invention, each terminal of the multiple terminals is scheduled to a resource that is not used by the neighbor cell as much as possible, thus inter-cell interference is reduced and a system resource utilization rate is improved.

Description

Resource scheduling method, device and base station

Technical field

The present invention relates to the field of wireless communications, and in particular, to a resource scheduling method, apparatus, and base station.

Background technique

The Device to Device (D2D) communication technology is a kind of end-to-end direct communication technology. The biggest difference from the traditional cellular communication technology is that the communication between the terminal and the terminal no longer needs the transfer of the base station. For communication, the base station can perform resource configuration, scheduling, coordination, etc., and directly communicate with the auxiliary terminals.

Currently, the Long Term Evolution (LTE) technology is adopted in the D2D communication technology, and the orthogonal frequency division multiple access (OFDMA) technology is adopted in the LTE technology, and the orthogonality between frequencies is utilized by the OFDMA technology. As a way of distinguishing users, the user's information is carried on different carriers that are orthogonal to each other, which can effectively resist frequency selective fading. In addition, since the frequencies used by the users in the cell are orthogonal to each other, all the interferences are from other cells, which can greatly improve the signal to interference plus noise ratio (SINR) of the cell center user, thereby Provide higher data rates and better quality of service. For the user at the cell edge, because the user who occupies the same carrier resource in the neighboring cell has a relatively large interference, and the distance from the base station is relatively small, the SINR is relatively small, resulting in a higher cell throughput but the cell edge. The user service quality is poor and the throughput is low. Therefore, intra-cell interference in the D2D system is small, and the main interference affecting system performance comes from inter-cell interference.

In order to solve the problem that the D2D system has serious interference at the cell edge, in the prior art, when performing resource scheduling on the terminal, interference coordination/avoidance techniques are adopted, for example, partial frequency reuse. (Fractional Frequency Reuse, FFR) Inter-cell interference coordination algorithm, Partial Time Reuse (FTR) inter-cell interference coordination algorithm. The basic idea of the interference coordination/avoidance technique is to allocate orthogonal time resources or orthogonal frequency resources to terminals at the cell edge, and reduce interference between terminals at the cell edge, thereby improving the overall performance of the cell.

However, since FFR or FTR is a semi-static interference coordination algorithm, the resource starting position of each cell is pre-configured. When the load between cells is not balanced, the resource scheduling method in the prior art may cause resources. The utilization rate is not high.

Summary of the invention

Embodiments of the present invention provide a resource scheduling method, apparatus, and base station to improve system resource utilization.

The first aspect provides a resource scheduling method, where the method is used to perform resource scheduling on multiple terminals in a D2D communication mode in a current cell, where the method includes:

Obtaining, to obtain, the number of users to be scheduled of the neighboring cell of the current cell in the next scheduling period;

Determining, according to the number of users to be scheduled of the neighboring cell, a first transmission resource required to schedule the number of users to be scheduled of the neighboring cell in a transmission resource of the neighboring cell;

Dispatching each of the plurality of terminals to the transmission resource of the current cell that does not belong to the first transmission resource, according to the determined first transmission resource, when the next scheduling period comes. Resources.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the transmission resource of the current cell includes a first primary resource portion and a first secondary resource portion, where the transmission resources of the neighboring cell include a second primary resource portion and a second secondary resource portion, the first primary resource portion being orthogonal to the second primary resource portion, the first secondary resource portion being partially multiplexed with the second secondary resource portion ;

And the scheduling, according to the determined first transmission resource, each of the multiple terminals to the resources of the current cell that are not in the first transmission resource, including:

Obtaining Reference Signal Receiving Power (RSRP) of each of the plurality of terminals;

Each of the plurality of terminals is sequentially scheduled to different resources in the first primary resource portion in accordance with an order of RSRP from low to high, when resources in the first primary resource portion are allocated Allocating, among the plurality of terminals, the remaining terminals except the part of the terminal to the first secondary resource part, wherein, when scheduling the remaining terminals to the first secondary resource part, according to Determining the first transmission resource, and scheduling the remaining terminals to resources in the first secondary resource part that are not in the first transmission resource.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the acquiring, by the neighboring cell of the current cell, in a next scheduling period, to be scheduled Number of users, including:

Determining whether a scheduling priority of a neighboring cell of the current cell is higher than a scheduling priority of the current cell;

When the result of the determination is that the scheduling priority of the neighboring cell of the current cell is higher than the scheduling priority of the current cell, the number of users to be scheduled of the neighboring cell of the current cell in the next scheduling period is obtained.

With reference to the first aspect, or the first possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the number of users to be scheduled according to the neighboring cell, in the neighboring The first transmission resource required to schedule the number of to-be-scheduled users of the neighboring cell, including:

Determining whether the number of users to be scheduled in the neighboring cell is smaller than the number of users to be scheduled in the current cell;

When the result of the determination is that the number of users to be scheduled in the neighboring cell is smaller than the number of users to be scheduled in the current cell, the number of users to be scheduled in the neighboring cell is determined in the transmission resources of the neighboring cell. Scheduling a first transmission resource required by the number of users to be scheduled of the neighboring cell.

In a second aspect, a resource scheduling apparatus is provided, the apparatus being used for adopting in a current cell A plurality of terminals in the D2D communication mode perform resource scheduling, and the device includes:

An acquiring unit, configured to acquire a number of users to be scheduled of a neighboring cell of the current cell in a next scheduling period;

a determining unit, configured to determine, according to the number of users to be scheduled of the neighboring cell acquired by the acquiring unit, in a transmission resource of the neighboring cell, a number required to schedule a number of users to be scheduled in the neighboring cell a transmission resource;

a scheduling unit, configured to, when the next scheduling period comes, schedule each terminal of the multiple terminals to the transmission resource of the current cell according to the first transmission resource determined by the determining unit A resource that does not belong to the first transmission resource.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the transmission resource of the current cell that is scheduled by the scheduling unit includes a first primary resource portion and a first secondary resource portion, and the determining unit The determined transmission resource of the neighboring cell includes a second primary resource part and a second secondary resource part, the first primary resource part is orthogonal to the second primary resource part, and the first secondary resource part is Partially multiplexed with the second secondary resource portion;

The scheduling unit includes:

Obtaining a subunit, configured to acquire an RSRP of each of the plurality of terminals;

a scheduling sub-unit, configured to sequentially schedule each of the multiple terminals to different resources in the first main resource part according to an order of the RSRP acquired by the obtaining sub-unit from low to high, when When the resources in the first main resource part are allocated, the remaining terminals except the part of the plurality of terminals are scheduled to the first secondary resource part, wherein the remaining terminals are Dispatching the remaining terminals to the first secondary resource portion that does not belong to the first transmission resource according to the first transmission resource determined by the determining unit, when scheduling to the first secondary resource portion resource of.

With reference to the second aspect, or the first possible implementation manner of the second aspect, in the second possible implementation manner of the second aspect, the acquiring unit includes:

a determining subunit, configured to determine whether a scheduling priority of a neighboring cell of the current cell is higher than a The scheduling priority of the current cell;

Obtaining a sub-unit, configured to: when the judgment result of the determining sub-unit is that the scheduling priority of the neighboring cell of the current cell is higher than the scheduling priority of the current cell, acquiring the current cell in the next scheduling period The number of users to be scheduled in the neighboring cell.

With reference to the second aspect or the first possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the determining unit includes:

a determining subunit, configured to determine whether the number of users to be scheduled in the neighboring cell is smaller than the number of users to be scheduled in the current cell;

Determining a subunit, configured to: when the judgment result of the judging subunit is that the number of users to be scheduled of the neighboring cell is smaller than the number of users to be scheduled in the current cell, according to the number of users to be scheduled of the neighboring cell, And determining, by the transmission resource of the neighboring cell, a first transmission resource required for scheduling the number of users to be scheduled of the neighboring cell.

A third aspect provides a base station, where the base station is configured to perform resource scheduling on multiple terminals in a D2D communication mode in a current cell, where the base station includes:

Memory

processor;

First interface circuit;

The memory is configured to store program instructions;

The processor is configured to perform the following operations according to program instructions stored in the memory:

Acquiring, by the first interface circuit, the number of users to be scheduled of the neighboring cell of the current cell in the next scheduling period;

With reference to the third aspect, in a first possible implementation manner of the third aspect, the transmission resource of the current cell includes a first primary resource portion and a first secondary resource portion, where the transmission resources of the neighboring cell include a second primary resource portion and a second secondary resource portion, the first primary resource portion being orthogonal to the second primary resource portion, the first secondary resource portion being partially multiplexed with the second secondary resource portion ;

The base station further includes a second interface circuit;

The processor performs, according to the determined first transmission resource, an operation of scheduling each terminal of the multiple terminals to a resource of the current cell that does not belong to the first transmission resource. ,include:

Acquiring, by the second interface circuit, an RSRP of each of the multiple terminals;

With reference to the third aspect, or the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the processor performs the acquiring the next scheduling period by using the first interface circuit The operation of the number of users to be scheduled in the neighboring cell of the current cell, including:

When the result of the determination is that the scheduling priority of the neighboring cell of the current cell is higher than the scheduling priority of the current cell, the first interface circuit acquires the neighboring cell of the current cell in the next scheduling period. The number of users to be scheduled.

With the third aspect or the first possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the processor performs the to-be-scheduled user according to the neighboring cell And determining, in the transmission resource of the neighboring cell, an operation of scheduling the first transmission resource required for scheduling the number of users to be scheduled in the neighboring cell, including:

The embodiment of the present invention provides a resource scheduling method, which is used to perform resource scheduling on multiple terminals in a D2D communication mode in a current cell, and when performing resource scheduling, first acquires a phase of the current cell in a next scheduling period. The number of users to be scheduled in the neighboring cell, and then determining, according to the number of users to be scheduled in the neighboring cell, the first transmission resource required to schedule the number of users to be scheduled in the neighboring cell in the transmission resource of the neighboring cell, when When the next scheduling period comes, each of the multiple terminals is scheduled to be used by the neighboring cell according to the determined first transmission resource, thereby reducing inter-cell interference and improving system resource utilization. .

DRAWINGS

FIG. 1 is a schematic diagram of an application scenario on which a resource scheduling method according to an embodiment of the present invention is based;

2 is a schematic diagram of resource scheduling when no inter-cell interference coordination technology is adopted;

FIG. 3 is a flowchart of a resource scheduling method according to Embodiment 1 of the present invention;

4 is a schematic diagram of resource scheduling according to Embodiment 1 of the present invention;

FIG. 5 is a schematic diagram of another resource scheduling according to Embodiment 1 of the present invention; FIG.

6 is a schematic diagram of resource scheduling using an FFR semi-static interference coordination algorithm;

7 is a schematic diagram of resource scheduling using an FTR semi-static interference coordination algorithm;

FIG. 8 is a structural diagram of a resource scheduling apparatus according to Embodiment 2 of the present invention;

FIG. 9 is a structural diagram of a base station according to Embodiment 3 of the present invention.

detailed description

The technical solutions in the embodiments of the present invention will be described below in conjunction with the accompanying drawings in the embodiments of the present invention.

FIG. 1 is a schematic diagram of an application scenario based on a resource scheduling method according to an embodiment of the present invention. Referring to FIG. 1, a cell 1 (Cell 1) and a cell 2 (Cell 2) are neighboring cells, and a cell 1 is covered by a base station 1. Covered by the base station 2, the terminal U1 and the terminal U6 belong to the cell 1, the terminal U2, the terminal U3, the terminal U4 and the terminal U5 belong to the cell 2, and the terminal U1, the terminal U2, the terminal U3, the terminal U4, the terminal U5 and the terminal U6 all adopt D2D. In the communication mode, when the base station 1 performs resource scheduling on the terminal U1 and the terminal U6 in the cell 1, the number of users to be scheduled of the cell 2 is obtained from the base station 2, and the resources used by the cell 2 are estimated according to the number of users to be scheduled. That is to say, the resources to be used by the cell 2 in the next scheduling period are determined according to the number of users to be scheduled, and the terminals U1 and U6 in the cell 1 are scheduled to resources not used by the cell 2.

In the embodiment of the present invention, the meaning of the user and the terminal is the same, and the number of users to be scheduled can be understood as the number of terminals to be scheduled.

It should be noted that the foregoing application scenario is only for illustration, and is not used to limit the present invention. In the embodiment of the present invention, the current cell may have one neighboring cell or multiple neighboring cells, and the foregoing multiple are at least Two. If the current cell has multiple neighboring cells, when the base station performs resource scheduling for the terminal of the current cell, the base station may estimate the resources used by one of the neighboring cells, and schedule the terminal in the current cell to be not used by the neighboring cell. Or the resources used by each of the neighboring cells may be estimated, and the terminals in the current cell are scheduled to resources that are not used by any of the neighboring cells.

The resource mentioned in the embodiment of the present invention is a transmission resource, and may be a time resource, or a frequency resource, or a time resource and a frequency resource.

2 is a schematic diagram of resource scheduling when no inter-cell interference coordination technology is adopted. Referring to FIG. 2, if there is no interference coordination between two cells, resources between terminals may conflict with each other, and the left figure shows a base station covering cell 1. 1 The resources allocated to the terminal U1, the right figure shows the base of the coverage cell 2. The station 2 allocates resources to the terminal U2, the terminal U3, the terminal U4, and the terminal U5. When the terminal U1 performs D2D data transmission in the form of a broadcast in the cell 1, since the terminal U2, the terminal U3, the terminal U4, and the terminal U5 in the cell 2 may transmit data on the same resource, The data sent by the terminal U1 generates interference, which causes the terminal U6 to receive the strong interference of the data of the terminal U1, so that the receiving performance of the cell edge terminal is degraded. The resource scheduling method of the embodiment of the present invention can effectively improve the receiving performance of the cell edge terminal. .

FIG. 3 is a flowchart of a resource scheduling method according to Embodiment 1 of the present invention. The method is used for performing resource scheduling on multiple terminals in a D2D communication mode in a current cell, and the method is performed by a base station that covers a current cell. include:

Step 301: The base station acquires the number of users to be scheduled of the neighboring cell of the current cell in the next scheduling period.

The neighboring cells can exchange the number of users to be scheduled in the next scheduling period through the interface between the evolved base stations (The interface between eNodeBs, X2).

In the embodiment of the present invention, when the neighboring cell meets certain conditions, the number of users to be scheduled of the neighboring cell of the current cell in the next scheduling period may be acquired, otherwise, no acquisition is required. Specifically, a scheduling priority is set for each cell in advance, for example, a scheduling priority is set for each cell according to a category of the cell, or a scheduling priority is set according to an identifier (Cell ID) of each cell, in the pair When the current cell performs resource scheduling, it is determined whether the scheduling priority of the neighboring cell of the current cell is higher than the scheduling priority of the current cell, and the judgment result is that the scheduling priority of the neighboring cell of the current cell is higher than the scheduling priority of the current cell. The number of to-be-scheduled users of the neighboring cell of the current cell in the next scheduling period is obtained, so that the resources used by the neighboring cell can be estimated later, and the resource of the terminal of the current cell is scheduled according to the resource used by the neighboring cell.

For example, when the scheduling of a certain type of cell (such as Cell A) is used as a reference, the base stations of other cells estimate the resource usage of the cell when scheduling the users of the cell, specifically, Cell A, Cell B, and Cell C is a neighboring cell. The scheduling priority of Cell A is higher than that of Cell B. The scheduling priority of Cell B is higher than the scheduling priority of Cell C. Refer to Figure 4 A resource scheduling diagram is shown. When the base station that covers the Cell A performs resource scheduling on the terminal of the Cell A, the scheduling priority of the Cell A is the highest, so there is no need to acquire the number of users to be scheduled in the neighboring cell. The scheduling is performed in the normal order. When the base station that covers the Cell B performs resource scheduling for the terminal of the Cell B, the resource usage of the Cell A is estimated according to the number of users to be scheduled for the Cell A that is exchanged by the X2, and the terminal is scheduled to be unsuccessful. The resource used by the Cell A. When the base station that covers the Cell C performs resource scheduling for the terminal of the Cell C, it estimates the resource usage of the Cell A according to the number of users to be scheduled for the Cell A exchanged by the X2, and interacts according to the X2. Cell B's number of users to be scheduled, and the resource usage of Cell B is estimated, so that the terminal is scheduled to resources that are not used by Cell A and Cell B.

Step 302: Estimate resources used by neighboring cells according to the number of users to be scheduled in the neighboring cell. In the embodiment of the present invention, the resources used by the neighboring cells may be directly estimated according to the number of users to be scheduled in the neighboring cell; or the number of users to be scheduled in the neighboring cell is determined to be smaller than the number of users to be scheduled in the current cell. As a result, when the number of users to be scheduled in the neighboring cell is smaller than the number of users to be scheduled in the current cell, the resources used by the neighboring cell are estimated according to the number of users to be scheduled in the neighboring cell.

For example, the cell with the smallest number of users to be scheduled is used as the reference cell. When the base station of the other cell performs resource scheduling on the terminal of the cell, the resource usage of the reference cell is estimated, so that the terminal of the cell is scheduled to be not the reference cell. Resources used. Specifically, Cell A, Cell B, and Cell C are adjacent cells, and the number of users to be scheduled is lower than the number of users to be scheduled in Cell C. The number of users to be scheduled in Cell C is less than the number of users to be scheduled in Cell A. Since Cell B has the fewest number of users to be scheduled, Cell B is used as the reference cell, and Cell B scheduling is used as a reference. Referring to another resource scheduling diagram shown in FIG. 5, when the base station that covers the Cell B performs resource scheduling on the terminal of the Cell B, the number of users to be scheduled is the least in the case of the Cell B. Scheduling sequence scheduling, regardless of the scheduling situation of other cells; when the base station covering Cell C performs resource scheduling for the terminal of Cell C, it estimates the resource usage of Cell B according to the number of users to be scheduled by Cell B that X2 interacts with. In this case, the terminal is scheduled to resources that are not used by the Cell B. When the base station that covers the Cell A performs resource scheduling on the terminal of the Cell A, the root will be rooted. According to the number of users to be scheduled by the X2 interacting with the Cell B, the resource usage of the Cell B is estimated, and the resource usage of the Cell C is estimated according to the number of users to be scheduled of the Cell C exchanged by the X2, thereby scheduling the terminal to the Resources used by Cell B and Cell C.

Generally, when the base station performs resource scheduling on the intra-cell terminal, the FFR or FTR semi-static interference coordination algorithm is adopted. 6 is a schematic diagram of resource scheduling using a FFR semi-static interference coordination algorithm. In the FFR scheme, the entire frequency domain resource is divided into a main part (Major part) and a secondary resource part (Minor part), and adjacent cells The Major part is orthogonal, and the users in each cell are assigned to the Major part according to the low-to-high priority of the Reference Signal Receiving Power (RSRP), and then assigned to the Minorit part, so that the edge user is preferentially Assigned to the major part, the users in the cell center are assigned to the Minor part, so that the resources of the edge users between adjacent cells are orthogonal to each other, and the purpose of reducing inter-cell interference can be achieved. Cell A allocates resources from the lowest frequency band, and allocates resources according to the size of RSRP from low to high. Cell B and Cell C adopt a similar allocation scheme, except that the resource starting positions are 1/3 band and 2/3 band respectively. When resources are allocated to the highest frequency band, allocation starts from the lowest frequency band from low to high. FIG. 7 is a schematic diagram of resource scheduling using the FTR semi-static interference coordination algorithm. The FTR scheme is similar to FFR, except that resource allocation starts from the lowest time resource.

The resource starting position of each cell is pre-configured, and the preset resource scheduling method is adopted. Therefore, after acquiring the number of users to be scheduled in the neighboring cell, the number of users to be scheduled in the neighboring cell may be pre- Estimate the resources used by neighboring cells.

Step 303: When the next scheduling period comes, each of the multiple terminals is scheduled to be used by the neighboring cell according to the estimated resource used by the neighboring cell.

The resource of the cell includes a primary resource part and a secondary resource part. The main resource part of the current cell is orthogonal to the main resource part of the neighboring cell, and the secondary resource part of the current cell and the secondary resource part of the neighboring cell are partially restored. use.

In the embodiment of the present invention, the RSRP of each terminal of the multiple terminals is first acquired, and then some of the multiple terminals are scheduled to the main resources of the current cell according to the order of the RSRP from low to high. Part of scheduling the remaining terminals of the plurality of terminals to the secondary resource portion of the current cell, wherein, when scheduling the remaining terminals to the secondary resource portion of the current cell, according to the estimated resources used by the neighboring cells, the rest The terminal schedules resources to be used by neighboring cells.

The step 302 is equivalent to the following description: determining, according to the number of users to be scheduled of the neighboring cell, the first transmission resource required to schedule the number of users to be scheduled of the neighboring cell in the transmission resource of the neighboring cell. Correspondingly, step 303 may be equivalent to the following description: when the next scheduling period comes, each of the plurality of terminals is scheduled to be in the transmission resource of the current cell according to the determined first transmission resource, and does not belong to the first transmission resource. resource of.

The embodiment of the present invention provides a resource scheduling method, which is used to perform resource scheduling on multiple terminals in a D2D communication mode in a current cell, and when performing resource scheduling, first acquires a neighbor of a current cell in a next scheduling period. The number of users to be scheduled in the cell, and then estimating the resources used by the neighboring cell according to the number of users to be scheduled in the neighboring cell. When the next scheduling period comes, according to the estimated resources used by the neighboring cell, Each of the plurality of terminals is scheduled to resources that are not used by the neighboring cell, thereby reducing inter-cell interference and improving system resource utilization.

FIG. 8 is a structural diagram of a resource scheduling apparatus according to Embodiment 2 of the present invention. The apparatus is configured to perform resource scheduling on a plurality of terminals in a D2D communication mode in a current cell, and may be used to perform a resource scheduling method according to Embodiment 1 of the present invention. The device includes:

The obtaining unit 801 is configured to acquire the number of users to be scheduled of the neighboring cell of the current cell in the next scheduling period;

The determining unit 802 is configured to determine, according to the number of users to be scheduled of the neighboring cell that are acquired by the acquiring unit 801, in the transmission resources of the neighboring cell, determine the number of users to be scheduled in the neighboring cell. First transmission resource;

The scheduling unit 803 is configured to, when the next scheduling period comes, schedule each of the multiple terminals to transmit to the current cell according to the first transmission resource determined by the determining unit 802. A resource in the resource that does not belong to the first transmission resource.

Optionally, the transmission resource of the current cell scheduled by the scheduling unit includes a first primary resource. a source part and a first secondary resource part, wherein the transmission resource of the neighboring cell determined by the determining unit includes a second primary resource part and a second secondary resource part, the first primary resource part and the second The main resource parts are orthogonal, and the first secondary resource part is partially multiplexed with the second secondary resource part;

The scheduling unit 803 includes:

The obtaining subunit 8031 is configured to acquire an RSRP of each of the multiple terminals.

The scheduling sub-unit 8032 is configured to sequentially schedule each of the multiple terminals to different resources in the first main resource part according to the order of the RSRP acquired by the obtaining sub-unit 8031 from low to high. And allocating, after the resources in the first main resource part, the remaining terminals except the part of the plurality of terminals to the first secondary resource part, where When the remaining terminals are scheduled to the first secondary resource part, according to the first transmission resource determined by the determining unit 802, scheduling the remaining terminals to the first secondary resource part does not belong to the first A resource that transmits resources.

Optionally, the obtaining unit 801 includes:

a determining sub-unit 8011, configured to determine whether a scheduling priority of a neighboring cell of the current cell is higher than a scheduling priority of the current cell;

The obtaining sub-unit 8012 is configured to: when the determining result of the determining sub-unit 8011 is that the scheduling priority of the neighboring cell of the current cell is higher than the scheduling priority of the current cell, acquiring the next scheduling period The number of users to be scheduled of the neighboring cell of the current cell.

Optionally, the determining unit 802 includes:

a determining sub-unit 8021, configured to determine whether the number of users to be scheduled in the neighboring cell is smaller than the number of users to be scheduled in the current cell;

a determining sub-unit 8022, configured to: when the determining result of the determining sub-unit 8021 is that the number of users to be scheduled in the neighboring cell is smaller than the number of users to be scheduled in the current cell, according to the to-be-scheduled user of the neighboring cell And determining, in the transmission resource of the neighboring cell, a first transmission resource required to schedule the number of users to be scheduled of the neighboring cell.

FIG. 9 is a structural diagram of a base station according to Embodiment 3 of the present invention. The base station is configured to perform resource scheduling on multiple terminals in a D2D communication mode in a current cell, and may be used to perform a resource scheduling method according to Embodiment 1 of the present invention. include:

Memory 901;

The processor 902;

a first interface circuit 903;

The memory 901 is configured to store program instructions;

The processor 902 is configured to perform the following operations according to the program instructions stored in the memory 901:

Acquiring, by the first interface circuit 903, the number of users to be scheduled of the neighboring cell of the current cell in the next scheduling period;

Optionally, the transmission resource of the current cell includes a first primary resource part and a first secondary resource part, where the transmission resource of the neighboring cell includes a second primary resource part and a second secondary resource part, where the a primary resource portion is orthogonal to the second primary resource portion, and the first secondary resource portion is partially multiplexed with the second secondary resource portion;

The base station further includes a second interface circuit 904;

The processor 902 performs, according to the determined first transmission resource, scheduling each terminal of the multiple terminals to a resource of the current cell that does not belong to the first transmission resource. Operations, including:

Acquiring, by the second interface circuit 904, an RSRP of each of the plurality of terminals;

Each of the plurality of terminals is sequentially scheduled to the order of RSRP from low to high Different resources in the first main resource part, when the resources in the first main resource part are allocated, scheduling the remaining terminals of the plurality of terminals except the part of the terminal to the a primary resource portion, wherein, when the remaining terminals are scheduled to the first secondary resource portion, the remaining terminals are scheduled to the first secondary resource according to the determined first transmission resource A resource in the portion that does not belong to the first transmission resource.

Optionally, the performing, by the processor 902, the acquiring, by the first interface circuit 903, the number of users to be scheduled of the neighboring cell of the current cell in the next scheduling period, including:

When the judgment result is that the scheduling priority of the neighboring cell of the current cell is higher than the scheduling priority of the current cell, the first interface circuit 903 acquires the neighboring cell of the current cell in the next scheduling period. The number of users to be scheduled.

Optionally, the processor 902 performs, according to the number of users to be scheduled according to the neighboring cell, determining, in a transmission resource of the neighboring cell, a required number of users to be scheduled in the neighboring cell. The operation of the first transmission resource includes:

A person skilled in the art should further appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both, in order to clearly illustrate hardware and software. Interchangeability, the composition and steps of the various examples have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. Professionals can use different methods to implement the described functions for each specific application, but this implementation should not be considered Beyond the scope of the invention.

It will be understood by those skilled in the art that all or part of the steps of implementing the above embodiments may be performed by a program, and the program may be stored in a computer readable storage medium, which is non-transitory ( English: non-transitory) media, such as random access memory, read-only memory, flash memory, hard disk, solid state disk, magnetic tape (English: magnetic tape), floppy disk (English: floppy disk), CD (English: optical disc) And any combination thereof.

The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or within the technical scope disclosed by the present invention. Alternatives are intended to be covered by the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

A resource scheduling method, wherein the method is used for resource scheduling of a plurality of terminals in a terminal to a terminal D2D communication mode in a current cell, where the method includes:

Obtaining, to obtain, the number of users to be scheduled of the neighboring cell of the current cell in the next scheduling period;

Determining, according to the number of users to be scheduled of the neighboring cell, a first transmission resource required to schedule the number of users to be scheduled of the neighboring cell in a transmission resource of the neighboring cell;

Dispatching each of the plurality of terminals to the transmission resource of the current cell that does not belong to the first transmission resource, according to the determined first transmission resource, when the next scheduling period comes. Resources.
The method according to claim 1, wherein the transmission resource of the current cell comprises a first primary resource part and a first secondary resource part, and the transmission resource of the neighboring cell comprises a second primary resource part and a a secondary resource portion, the first primary resource portion is orthogonal to the second primary resource portion, and the first secondary resource portion is partially multiplexed with the second secondary resource portion;

And the scheduling, according to the determined first transmission resource, each of the multiple terminals to the resources of the current cell that are not in the first transmission resource, including:

Obtaining a reference signal received power RSRP of each of the plurality of terminals;

Each of the plurality of terminals is sequentially scheduled to different resources in the first primary resource portion in accordance with an order of RSRP from low to high, when resources in the first primary resource portion are allocated Allocating, among the plurality of terminals, the remaining terminals except the part of the terminal to the first secondary resource part, wherein, when scheduling the remaining terminals to the first secondary resource part, according to Determining the first transmission resource, and scheduling the remaining terminals to resources in the first secondary resource part that are not in the first transmission resource.
The method according to claim 1 or 2, wherein the acquiring the number of users to be scheduled of the neighboring cell of the current cell in the next scheduling period includes:

Determining whether a scheduling priority of a neighboring cell of the current cell is higher than a scheduling priority of the current cell;

When the result of the determination is that the scheduling priority of the neighboring cell of the current cell is higher than the scheduling priority of the current cell, the number of users to be scheduled of the neighboring cell of the current cell in the next scheduling period is obtained.
The method according to claim 1 or 2, wherein the determining, according to the number of users to be scheduled of the neighboring cell, the scheduling of the neighboring cell to be scheduled in the transmission resource of the neighboring cell The first transmission resource required by the number of users, including:

Determining whether the number of users to be scheduled in the neighboring cell is smaller than the number of users to be scheduled in the current cell;

When the result of the determination is that the number of users to be scheduled in the neighboring cell is smaller than the number of users to be scheduled in the current cell, the number of users to be scheduled in the neighboring cell is determined in the transmission resources of the neighboring cell. Scheduling a first transmission resource required by the number of users to be scheduled of the neighboring cell.
A resource scheduling apparatus, wherein the apparatus is configured to perform resource scheduling on a plurality of terminals that use a terminal-to-terminal D2D communication mode in a current cell, where the apparatus includes:

An acquiring unit, configured to acquire a number of users to be scheduled of a neighboring cell of the current cell in a next scheduling period;

a determining unit, configured to determine, according to the number of users to be scheduled of the neighboring cell acquired by the acquiring unit, in a transmission resource of the neighboring cell, a number required to schedule a number of users to be scheduled in the neighboring cell a transmission resource;

a scheduling unit, configured to, when the next scheduling period comes, schedule each terminal of the multiple terminals to the transmission resource of the current cell according to the first transmission resource determined by the determining unit A resource that does not belong to the first transmission resource.
The apparatus according to claim 5, wherein the transmission resource of the current cell scheduled by the scheduling unit comprises a first primary resource part and a first secondary resource part, and the neighbor determined by the determining unit The transmission resource of the cell includes a second primary resource portion and a second secondary resource portion, the first primary resource portion being orthogonal to the second primary resource portion, the first secondary resource portion and the second secondary portion Partial reuse of resources;

The scheduling unit includes:

Obtaining a subunit, configured to acquire a reference signal received power RSRP of each of the plurality of terminals;

a scheduling sub-unit, configured to sequentially schedule each of the multiple terminals to different resources in the first main resource part according to an order of the RSRP acquired by the obtaining sub-unit from low to high, when When the resources in the first main resource part are allocated, the remaining terminals except the part of the plurality of terminals are scheduled to the first secondary resource part, wherein the remaining terminals are Dispatching the remaining terminals to the first secondary resource portion that does not belong to the first transmission resource according to the first transmission resource determined by the determining unit, when scheduling to the first secondary resource portion resource of.
The device according to claim 5 or 6, wherein the obtaining unit comprises:

a determining subunit, configured to determine whether a scheduling priority of a neighboring cell of the current cell is higher than a scheduling priority of the current cell;

Obtaining a sub-unit, configured to: when the judgment result of the determining sub-unit is that the scheduling priority of the neighboring cell of the current cell is higher than the scheduling priority of the current cell, acquiring the current cell in the next scheduling period The number of users to be scheduled in the neighboring cell.
The apparatus according to claim 5 or 6, wherein the determining unit comprises:

a determining subunit, configured to determine whether the number of users to be scheduled in the neighboring cell is smaller than the number of users to be scheduled in the current cell;

Determining a subunit, configured to: when the judgment result of the judging subunit is that the number of users to be scheduled of the neighboring cell is smaller than the number of users to be scheduled in the current cell, according to the number of users to be scheduled of the neighboring cell, And determining, by the transmission resource of the neighboring cell, a first transmission resource required for scheduling the number of users to be scheduled of the neighboring cell.
A base station is configured to perform resource scheduling on a plurality of terminals in a current cell using a terminal-to-terminal D2D communication mode, where the base station includes:

Memory

processor;

First interface circuit;

The memory is configured to store program instructions;

The processor is configured to perform the following operations according to program instructions stored in the memory:

Acquiring, by the first interface circuit, the number of users to be scheduled of the neighboring cell of the current cell in the next scheduling period;

Determining, according to the number of users to be scheduled of the neighboring cell, a first transmission resource required to schedule the number of users to be scheduled of the neighboring cell in a transmission resource of the neighboring cell;

Dispatching each of the plurality of terminals to the transmission resource of the current cell that does not belong to the first transmission resource, according to the determined first transmission resource, when the next scheduling period comes. Resources.
The base station according to claim 9, wherein the transmission resource of the current cell comprises a first primary resource part and a first secondary resource part, and the transmission resource of the neighboring cell comprises a second primary resource part and a a secondary resource portion, the first primary resource portion is orthogonal to the second primary resource portion, and the first secondary resource portion is partially multiplexed with the second secondary resource portion;

The base station further includes a second interface circuit;

The processor performs, according to the determined first transmission resource, an operation of scheduling each terminal of the multiple terminals to a resource of the current cell that does not belong to the first transmission resource. ,include:

Obtaining a reference signal received power RSRP of each of the plurality of terminals by using the second interface circuit;

Each of the plurality of terminals is sequentially scheduled to different resources in the first primary resource portion in accordance with an order of RSRP from low to high, when resources in the first primary resource portion are allocated Allocating, among the plurality of terminals, the remaining terminals except the partial terminal to the first secondary resource portion, wherein the remaining terminals are scheduled to the first secondary resource portion And, according to the determined first transmission resource, scheduling the remaining terminals to resources in the first secondary resource portion that are not in the first transmission resource.
The base station according to claim 9 or 10, wherein the processor performs the operation of acquiring, by the first interface circuit, the number of users to be scheduled of a neighboring cell of the current cell in a next scheduling period. ,include:

Determining whether a scheduling priority of a neighboring cell of the current cell is higher than a scheduling priority of the current cell;

When the result of the determination is that the scheduling priority of the neighboring cell of the current cell is higher than the scheduling priority of the current cell, the first interface circuit acquires the neighboring cell of the current cell in the next scheduling period. The number of users to be scheduled.
The base station according to claim 9 or 10, wherein the processor performs the scheduling of the phase in the transmission resources of the neighboring cell according to the number of users to be scheduled according to the neighboring cell. The operation of the first transmission resource required by the number of users to be scheduled in the neighboring cell, including:

Determining whether the number of users to be scheduled in the neighboring cell is smaller than the number of users to be scheduled in the current cell;

When the result of the determination is that the number of users to be scheduled in the neighboring cell is smaller than the number of users to be scheduled in the current cell, the number of users to be scheduled in the neighboring cell is determined in the transmission resources of the neighboring cell. Scheduling a first transmission resource required by the number of users to be scheduled of the neighboring cell.