CN105557010A

CN105557010A - Resource allocation method, base station and system

Info

Publication number: CN105557010A
Application number: CN201480036752.1A
Authority: CN
Inventors: 徐立; 代建设; 杨安全; 张健; 顾紫龙; 王庆文
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2014-07-11
Filing date: 2014-07-11
Publication date: 2016-05-04
Anticipated expiration: 2034-07-11
Also published as: WO2016004630A1; CN105557010B

Abstract

The present invention belongs to the technical field of communications. Disclosed are a resource allocation method, a base station and a system. The method is applied to a serving cell and an interference cell, the serving cell and the interference cell are configured with the same parameters, and the parameters comprise at least a PCI. In the method, time-frequency resources are allocated to all UEs in the serving cell at a subframe time point at which the serving cell can allocate time-frequency resources to users, and an obtained first allocation result is sent to the interference cell; time-frequency resources are allocated by the interference cell to non-edge UEs in the interference cell according to the first allocation result; time-frequency resources are allocated by the interference cell to all UEs in the interference cell at a subframe time point at which the interference cell can allocate time-frequency resources to users, and an obtained second allocation result is sent to the serving cell; and time-frequency resources are allocated by the serving cell to non-edge UEs in the serving cell according to the second allocation result. Besides, because there is no need to arrange an additional centralized control node to allocate video resources to user equipment, the efficiency of resource allocation is high.

Description

Resource allocation method, base station and system

Resource allocation method, base station and system technical field

The present invention relates to the field of communications technologies, and in particular, to a resource allocation method, a base station, and a system. Background

With the development of the current communication technology, the coverage area of the communication network is wider and wider. The area covered by each base station is called a physical cell, and the physical cell to which the user equipment belongs is called a serving cell. When the ue is located at the edge of the serving cell, the quality of the signal received by the ue is poor due to signal attenuation and interference from neighboring interfering cells. In order to solve the above problem, the quality of a signal received by a user equipment is generally improved by using a mode that a serving cell and an adjacent cell jointly transmit a signal to the user equipment. When performing the joint transmission, time-frequency resources need to be allocated to the user equipments in the serving cell and the neighboring cell to avoid time-frequency collision when transmitting signals. Therefore, how to allocate the time-frequency resources is a key to improve the communication efficiency.

In the method, a plurality of physical cells are combined into a Single Frequency Network (SFN), and a centralized control node is set in the SFN, and the centralized control node allocates time-Frequency resources to user equipments in all physical cells in the SFN in a unified manner, so as to avoid time-Frequency collision when the physical cells in the SFN send signals to a plurality of user equipments.

In the process of implementing the invention, the inventor finds that the method at least has the following problems: because a centralized control node needs to be set to allocate the time-frequency resources of the user equipment in all the physical cells in the SFN, when there are many physical cells in the SFN, there are many corresponding user equipment, so that there are many hardware resources occupied when allocating the time-frequency resources to the user equipment. Hardware resources are usually limited, and the SFN cell can be combined in a limited physical cell. Therefore, the efficiency of resource allocation is low. Disclosure of Invention

In order to solve the problems in the prior art, embodiments of the present invention provide a resource allocation method, a base station, and a system. The technical scheme is as follows:

in a first aspect, a base station is provided, where the base station is located in a serving Cell, the serving Cell and an interfering Cell are configured with the same parameters, and the parameters at least include a Physical Cell Identifier (PCI), and the base station includes:

a processing unit, configured to determine a subframe in which user time-frequency resources can be allocated to the serving cell and the interfering cell in a next cycle;

a base station interface, configured to notify the interfering cell of a subframe to which user time-frequency resources can be allocated in the interfering cell in the next period;

the processing unit is further configured to perform time-frequency resource allocation on edge User Equipment (UE) and non-edge UE in the serving cell at a subframe time when the serving cell may allocate User time-frequency resources, so as to obtain a first allocation result;

the base station interface is further configured to send the first allocation result to the interfering cell, and the interfering cell allocates, according to the first allocation result, a time-frequency resource different from that of the edge UE of the serving cell to the non-edge UE in the interfering cell;

the base station interface is further configured to receive a second allocation result of the interference cell allocating time-frequency resources to edge UEs and non-edge UEs in the interference cell at a subframe time when the interference cell may allocate user time-frequency resources;

the processing unit is further configured to allocate, according to the second allocation result, time-frequency resources, which are different from the edge UE of the interfering cell, to the non-edge UE in the serving cell.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the processing unit is further configured to count an average number of edge UEs to be scheduled per subframe and a total number of UEs in the serving cell in a current period;

the base station interface is further configured to obtain the number of edge UEs to be scheduled per subframe and the total number of UEs in the interference cell in the current period;

the processing unit is further configured to determine, when the average number of edge UEs to be scheduled per subframe of the serving cell in the current period is greater than a first preset width, or when the average number of edge UEs to be scheduled per subframe of the interfering cell in the current period is greater than a second preset width, a subframe in which user time-frequency resources can be allocated to the serving cell and the interfering cell in a next period according to a ratio of the average number of edge UEs to be scheduled per subframe of the serving cell and the interfering cell in the current period to the total number of UEs to be scheduled per subframe of the serving cell and the interfering cell in the current period.

With Reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the base station interface is further configured to control the interfering cell to measure, in a current period, first uplink Reference Signal Receiving frequencies (RSRPs) of all UEs in the serving cell;

the base station interface is further configured to receive first uplink RSRPs of all UEs in the serving cell, which are sent after the interference cell measurement;

the processing unit is further configured to measure, in a current period, second uplink RSRP of all UEs in the serving cell;

the processing unit is further configured to determine whether each UE in the serving cell in the current period is an edge UE in the serving cell according to a first uplink RSRP and a second uplink RSRP of each UE in the serving cell in the current period, obtain all edge UEs in the serving cell in the current period, and count the number of edge UEs to be scheduled in each subframe of the serving cell in the current period on average in all the edge UEs in the serving cell in the current period.

With reference to any one of the first aspect to the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the processing unit is further configured to measure, according to the control of the interfering cell, third uplink RSRPs of all UEs in the interfering cell in a current period;

the base station interface is further configured to send the measured third RSRPs of all UEs in the interfering cell to the interfering cell, and after the interfering cell measures fourth uplink RSRPs of all UEs in the interfering cell in a current period, determine whether each UE in the interfering cell in the current period is an edge UE in the interfering cell according to the third uplink RSRP and the fourth uplink RSRP of each UE in the interfering cell, so as to obtain all edge UEs in the interfering cell.

In a second aspect, a base station is provided, where the base station is located in an interfering cell, and the interfering cell and a serving cell are configured with the same parameters, where the parameters at least include a PCI, and the base station includes:

a base station interface, configured to receive a notification of a subframe, where a user time-frequency resource can be allocated in a next period, sent by the serving cell;

the processing unit is used for determining a subframe which can distribute the time-frequency resources of the user in the next period according to the notification sent by the service cell;

the base station interface is further configured to obtain a first allocation result of the serving cell allocating time-frequency resources for edge UEs and non-edge UEs in the serving cell at a subframe time when the serving cell may allocate user time-frequency resources;

the processing unit is further configured to allocate, according to the first allocation result, a time-frequency resource different from an edge UE of the serving cell to a non-edge UE in the interfering cell;

the processing unit is further configured to perform time-frequency resource allocation on edge UEs and non-edge UEs in the interfering cell at a subframe time when the interfering cell can allocate user time-frequency resources, so as to obtain a second allocation result;

and the base station interface is further configured to send the second allocation result to the serving cell, and the serving cell allocates, according to the second allocation result, time-frequency resources different from the edge UE of the interfering cell to the non-edge UE in the serving cell.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the processing unit is further configured to count an average number of edge UEs to be scheduled per subframe of the interfering cell in a current period and a total number of UEs;

and the base station interface is further configured to send the statistical result to the serving cell, and the serving cell determines that the number of edge UEs to be scheduled in each subframe of the serving cell is greater than a first preset width, or when the number of edge UEs to be scheduled in each subframe of the interfering cell is greater than a second preset width, determines, according to a ratio of the number of total UEs to be scheduled in each subframe of the serving cell and the interfering cell, subframes in which user time-frequency resources can be allocated in a next cycle to the serving cell and the interfering cell. With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the processing unit is further configured to control the serving cell to measure, in a current period, third uplink RSRPs of all UEs in the interfering cell;

the base station interface is further configured to receive a third uplink RSRP of all UEs in the interfering cell, which is sent after the serving cell is measured;

the processing unit is further configured to measure, in a current period, fourth uplink RSRP of all UEs in the interfering cell;

the processing unit is further configured to determine whether each UE in the interfering cell in the current period is an edge UE in the interfering cell according to a third uplink RSRP and a fourth uplink RSRP of each UE in the interfering cell in the current period, so as to obtain all edge UEs in the interfering cell;

counting the number of the edge UE to be scheduled in each sub-frame of the interference cell in the current period on average in all the edge UE in the interference cell in the current period.

With reference to any one of the second aspect to the second possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the processing unit is further configured to measure, according to the control of the serving cell, first uplink RSRPs of all UEs in the serving cell in a current period;

the base station interface is further configured to send the measured first RSRPs of all UEs in the serving cell to the serving cell, and after the serving cell measures second uplink RSRPs of all UEs in the serving cell in a current period, determine whether each UE in the serving cell in the current period is an edge UE in the serving cell according to the first uplink RSRP and the second uplink RSRP of each UE in the serving cell in the current period, so as to obtain all edge UEs in the serving cell.

In a third aspect, a resource allocation method is provided, where the method is applied to a serving cell and an interfering cell, where the serving cell and the interfering cell are configured with the same parameter, and the parameter at least includes a PCI, and the method includes:

determining a subframe of the service cell and the interference cell which can allocate user time-frequency resources in the next period; informing the interference cell of the sub-frame of the allocable user time-frequency resource of the interference cell in the next period; performing time-frequency resource allocation on edge UE and non-edge UE in the serving cell at a subframe time when the serving cell can allocate user time-frequency resources to obtain a first allocation result; sending the first allocation result to the interference cell, and allocating, by the interference cell, a time-frequency resource different from that of the edge UE of the serving cell to the non-edge UE in the interference cell according to the first allocation result;

receiving a second distribution result of time-frequency resources distributed by the interference cell for edge UE and non-edge UE in the interference cell at the time of a subframe where the user time-frequency resources can be distributed by the interference cell; and allocating time-frequency resources different from the edge UE of the interference cell to the non-edge UE in the service cell according to the second allocation result.

With reference to the third aspect, in a first possible implementation manner of the third aspect, the determining subframes in which the serving cell and the interfering cell may allocate user time-frequency resources in a next cycle includes:

counting the number of the edge UEs to be scheduled in each sub-frame of the average serving cell in the current period and the total number of the UEs to be scheduled in each sub-frame of the average serving cell in the current period, and acquiring the number of the edge UEs to be scheduled in each sub-frame of the average interfering cell in the current period and the total number of the UEs;

if the average number of edge UEs to be scheduled per subframe of the service cell in the current period is greater than a first preset width, or the average number of edge UEs to be scheduled per subframe of the interference cell in the current period is greater than a second preset width, the average total number of edge UEs to be scheduled per subframe of the service cell and the interference cell in the current period is determined according to the total number of the edge UEs to be scheduled per subframe of the service cell and the interference cell in the current period

And determining the subframe of the service cell and the interference cell which can distribute the user time-frequency resources in the next period according to the proportion of the UE quantity.

With reference to the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, before the counting the average number of edge UEs to be scheduled per subframe of the serving cell in the current period, the method further includes:

controlling an interference cell to measure first uplink RSRPs of all UE in the service cell in the current period, and receiving the first uplink RSRPs of all UE in the service cell sent after the interference cell is measured;

the counting the number of the edge UEs to be scheduled per subframe of the serving cell in the current period includes: according to the current period, the first uplink RSRP and the second uplink RSRP of each UE in the service cell

The RSRP determines whether each UE in the serving cell in the current period is an edge UE in the serving cell or not, and all edge UEs in the serving cell in the current period are obtained;

and counting the number of the edge UE to be scheduled in each subframe of the serving cell in the current period on average in all the edge UE in the serving cell in the current period.

With reference to any one of the third aspect to the second possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, before determining a subframe in which user time-frequency resources can be allocated to the serving cell and the interfering cell in a next cycle, the method further includes:

measuring third uplink RSRP of all UE in the interference cell in the current period according to the control of the interference cell;

and sending the measured third RSRP of all the UE in the interference cell to the interference cell, and after the interference cell measures the fourth uplink RSRP of all the UE in the interference cell in the current period, determining whether each UE in the interference cell in the current period is the edge UE in the interference cell according to the third uplink RSRP and the fourth uplink RSRP of each UE in the interference cell, so as to obtain all the edge UE in the interference cell.

In a fourth aspect, a resource allocation method is provided, where the method is applied to a serving cell and an interfering cell, where the serving cell and the interfering cell are configured with the same parameters, and the parameters at least include a PCI, and the method includes:

receiving a notice of a sub-frame which can distribute user time-frequency resources in the next period and is sent by the serving cell; determining a subframe capable of allocating user time-frequency resources in the next period according to the notification sent by the serving cell; acquiring a first distribution result of time-frequency resources distributed by the serving cell to edge UE and non-edge UE in the serving cell at the time of a subframe of the time-frequency resources distributed by the serving cell, and distributing the non-edge UE in the interfering cell to the edge of the serving cell according to the first distribution result

Different time-frequency resources of the UE;

performing time-frequency resource allocation on edge UE and non-edge UE in the interference cell at the time of the subframe at which the user time-frequency resource can be allocated to the interference cell to obtain a second allocation result; and sending the second distribution result to the serving cell, and distributing time-frequency resources different from the edge UE of the interference cell to the non-edge UE in the serving cell by the serving cell according to the second distribution result. With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, before the receiving the notification that the subframe of the user time-frequency resource can be allocated in the next period sent by the serving cell, the method further includes:

counting the average number of edge UEs to be scheduled per subframe and the total number of UEs in the interference cell in the current period;

and sending the statistical result to the service cell, determining that the number of the edge UEs to be scheduled in each subframe of the service cell is larger than a first preset width value by the service cell, or determining the subframe of the time-frequency resource allocable for the user in the service cell and the interference cell in the next period according to the proportion of the number of the total UEs to be scheduled in each subframe of the service cell and the interference cell when the number of the edge UEs to be scheduled in each subframe of the interference cell is larger than a second preset width value.

With reference to the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, before the counting the number of edge UEs to be scheduled per subframe of the interfering cell in the current period, the method further includes:

controlling the serving cell to measure third uplink RSRPs of all UE in the interfering cell in the current period, and receiving the third uplink RSRPs of all UE in the interfering cell sent after the serving cell is measured;

measuring fourth uplink RSRP of all UE in the interference cell in the current period;

the counting the number of the edge UEs to be scheduled per subframe of the average interference cell in the current period includes: determining whether each UE in the interference cell in the current period is an edge UE in the interference cell according to a third uplink RSRP and a fourth uplink RSRP of each UE in the interference cell in the current period, and obtaining all edge UEs in the interference cell;

With reference to any one of the fourth aspect to the second possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect, before the receiving the notification that the next cycle may allocate a subframe of user time-frequency resources, which is sent by the serving cell, the method further includes:

measuring first uplink RSRP of all UE in the serving cell in a current period according to the control of the serving cell;

and after the serving cell measures second uplink RSRPs of all the UE in the serving cell in the current period, determining whether each UE in the serving cell in the current period is an edge UE in the serving cell according to the first uplink RSRP and the second uplink RSRP of each UE in the serving cell in the current period, and obtaining all the edge UE in the serving cell.

The technical scheme provided by the embodiment of the invention has the following beneficial effects:

the method comprises the steps of allocating time-frequency resources to edge UE and non-edge UE in a serving cell at the time of a subframe at which the user time-frequency resources can be allocated in the serving cell, sending an obtained first allocation result to an interference cell, allocating the time-frequency resources to the non-edge UE in the interference cell by the interference cell according to the first allocation result, allocating the time-frequency resources to the edge UE and the non-edge UE in the interference cell by the interference cell at the time of the subframe at which the user time-frequency resources can be allocated in the interference cell, sending an obtained second allocation result to the serving cell, and allocating the time-frequency resources to the non-edge UE in the serving cell by the serving cell according to the second allocation result, so that the time-frequency resources are allocated in a time-division multiplexing manner, and avoiding the problem that when the time-frequency resources are jointly transmitted, and the time-frequency resource conflict occurs between the user equipment in the service cell and the user equipment in the interference cell. In addition, as no additional centralized control node is needed to be arranged to allocate the video resources for the user equipment, the resource allocation efficiency is high. Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic diagram of an implementation environment of a resource allocation method according to an embodiment of the present invention; fig. 2 is a schematic structural diagram of a base station according to another embodiment of the present invention;

fig. 3 is a schematic structural diagram of a base station according to another embodiment of the present invention;

fig. 4 is a flowchart of a resource allocation method according to another embodiment of the present invention; fig. 5 is a flowchart of a resource allocation method according to another embodiment of the present invention; fig. 6 is a flowchart of a resource allocation method according to another embodiment of the present invention;

fig. 7 is a schematic structural diagram of a resource allocation system according to another embodiment of the present invention. Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Schematic representation. As shown in fig. 1, the implementation environment includes a first base station 101, a second base station 102, and a user equipment 103. The first base station 101 may be a base station in a serving cell, and the second base station 102 is a base station in an interfering cell. The user device 103 may be a smart phone, a tablet computer, a laptop portable computer, etc., which is not limited in this embodiment. Through the implementation environment shown in fig. 1, the first base station 101 and the user equipment 103 may communicate with each other through a wireless network, the second base station 102 and the user equipment 103 may communicate with each other through a wireless network, and the first base station 101 and the second base station 102 may also communicate with each other through a wireless network.

For ease of illustration, fig. 1 shows only one user device 103, with the user device 103 representing only one of the plurality of user devices. The following embodiments will be illustrated by a source allocation method between the first base station 101 and the second base station 102. An embodiment of the present invention provides a base station, where the base station is configured to perform functions performed by a serving cell in a resource allocation method provided in the following embodiments corresponding to fig. 4 to fig. 6. In addition, the base station is located in a serving cell, the serving cell and an interfering cell are configured with the same parameters, and the parameters at least include a PCI. Referring to fig. 2, the base station comprises a processing unit 201 and a base station interface 202.

A processing unit 201, configured to determine a subframe in which a serving cell and an interfering cell in a next period can allocate user time-frequency resources; a base station interface 202, configured to notify the interfering cell of a subframe to which user time-frequency resources can be allocated in the interfering cell of the next period;

the processing unit 201 is further configured to perform time-frequency resource allocation on edge UEs and non-edge UEs in the serving cell at a subframe time when the serving cell may allocate user time-frequency resources, so as to obtain a first allocation result; the base station interface 202 is further configured to send the first allocation result to the interfering cell, and the interfering cell allocates, according to the first allocation result, a time-frequency resource different from that of the edge UE of the serving cell to the non-edge UE in the interfering cell;

the base station interface 202 is further configured to receive a second allocation result of the interfering cell allocating time-frequency resources to edge UEs and non-edge UEs in the interfering cell at a subframe time when the interfering cell may allocate time-frequency resources for users;

the processing unit 201 is further configured to allocate, according to the second allocation result, time-frequency resources, which are different from the edge UEs of the interfering cell, to the non-edge UEs in the serving cell.

In an optional embodiment, the processing unit 201 is further configured to count the number of edge UEs to be scheduled per subframe of an average serving cell in a current period and the total number of UEs;

the base station interface 202 is further configured to obtain the number of edge UEs to be scheduled per subframe and the total number of UEs in the average interference cell in the current period;

the processing unit 201 is further configured to determine, when the average number of edge UEs to be scheduled per subframe of the serving cell in the current period is greater than a first preset width, or when the average number of edge UEs to be scheduled per subframe of the interfering cell in the current period is greater than a second preset width, a subframe of time-frequency resources allocable for users of the serving cell and the interfering cell in the next period according to a ratio of the average number of edge UEs to be scheduled per subframe of the serving cell and the interfering cell in the current period to the total number of UEs to be scheduled per subframe of the serving cell and the interfering cell in the current period.

In an optional embodiment, the base station interface 202 is further configured to control the interfering cell to measure, in a current period, first uplink RSRP of all UEs in the serving cell;

the base station interface 202 is further configured to receive a first uplink RSRP of all UEs in the serving cell, which is sent after the interference cell measurement;

the processing unit 201 is further configured to measure a second uplink RSRP of all UEs in the serving cell in the current period;

the processing unit 201 is further configured to determine whether each UE in the current periodic serving cell is an edge UE in the serving cell according to the first uplink RSRP and the second uplink RSRP of each UE in the current periodic serving cell, to obtain all edge UEs in the current periodic serving cell, and count the average number of edge UEs to be scheduled per subframe in the current periodic serving cell among all edge UEs in the current periodic serving cell.

In an optional embodiment, the processing unit 201 is further configured to measure, according to the control of the interfering cell, third uplink RSRP of all UEs in the interfering cell in the current period;

the base station interface 202 is further configured to send the measured third RSRPs of all UEs in the interfering cell to the interfering cell, and after the interfering cell measures the fourth uplink RSRPs of all UEs in the interfering cell in the current period, determine whether each UE in the interfering cell in the current period is an edge UE in the interfering cell according to the third uplink RSRP and the fourth uplink RSRP of each UE in the interfering cell, so as to obtain all edge UEs in the interfering cell.

In the embodiment of the present invention, the specific structure of the processing unit 201 may be various types. For example, the present invention may be a general-purpose processor, a special-purpose processor, a processing circuit, etc., which are not particularly limited in this respect.

In the base station provided in this embodiment, time-frequency resource allocation is performed on edge UEs and non-edge UEs in a serving cell at a subframe time when the serving cell can allocate user time-frequency resources, an obtained first allocation result is sent to an interfering cell, the interfering cell allocates time-frequency resources to the non-edge UEs in the interfering cell according to the first allocation result, the interfering cell allocates time-frequency resources to the edge UEs and the non-edge UEs in the interfering cell at the subframe time when the interfering cell can allocate user time-frequency resources, an obtained second allocation result is sent to the serving cell, and the serving cell allocates time-frequency resources to the non-edge UEs in the serving cell according to the second allocation result, so that time-frequency resource allocation is performed in a time division multiplexing manner, and a situation that time-frequency resource collision occurs between the serving cell and user equipment in the interfering cell during joint transmission is avoided. In addition, as no additional centralized control node is needed to be arranged to allocate the video resources for the user equipment, the resource allocation efficiency is high. An embodiment of the present invention provides a base station, where the base station is configured to perform functions performed by an interfering cell in a resource allocation method provided in the following embodiments corresponding to fig. 4 to fig. 6. In addition, the base station is located in an interfering cell, the serving cell and the interfering cell are configured with the same parameters, and the parameters at least include a PCI. Referring to fig. 3, the base station comprises a processing unit 301 and a base station interface 302.

A base station interface 302, configured to receive a notification of a subframe, which is sent by a serving cell and in which a user time-frequency resource can be allocated in a next period;

a processing unit 301, configured to determine, according to a notification sent by a serving cell, a subframe to which a user time-frequency resource can be allocated in a next period;

the base station interface 302 is further configured to obtain a first allocation result of the serving cell allocating time-frequency resources for edge UEs and non-edge UEs in the serving cell at a subframe time when the serving cell may allocate user time-frequency resources;

the processing unit 301 is further configured to allocate, according to the first allocation result, time-frequency resources, which are different from the edge UE of the serving cell, to the non-edge UE in the interfering cell;

the processing unit 301 is further configured to perform time-frequency resource allocation on edge UEs and non-edge UEs in the interfering cell at a subframe time when the interfering cell can allocate user time-frequency resources, so as to obtain a second allocation result; the base station interface 302 is further configured to send the second allocation result to the serving cell, and the serving cell allocates, according to the second allocation result, time-frequency resources different from the edge UE of the interfering cell to the non-edge UE in the serving cell.

In an optional embodiment, the processing unit 301 is further configured to count the number of edge UEs to be scheduled per subframe of an average interference cell in a current period and the total number of UEs;

the base station interface 302 is further configured to send the statistical result to the serving cell, and the serving cell determines that the average number of edge UEs to be scheduled per subframe of the serving cell is greater than a first preset width, or when the average number of edge UEs to be scheduled per subframe of the interfering cell is greater than a second preset width, determines a subframe of user time-frequency resources allocable to the serving cell and the interfering cell in a next cycle according to a ratio of the average number of total UEs to be scheduled per subframe of the serving cell and the interfering cell.

In an optional embodiment, the base station interface 302 is further configured to control the serving cell to measure, in a current period, third uplink RSRP of all UEs in the interfering cell;

the base station interface 302 is further configured to receive a third uplink RSRP of all UEs in the interfering cell, which is sent after the serving cell measurement;

the processing unit 301 is further configured to measure fourth uplink RSRP of all UEs in the interfering cell in the current period;

the processing unit 301 is further configured to determine whether each UE in the current periodic interference cell is an edge UE in the interference cell according to a third uplink RSRP and a fourth uplink RSRP of each UE in the current periodic interference cell, so as to obtain all edge UEs in the interference cell;

counting the number of the edge UEs to be scheduled in each subframe of the current period interference cell in all the edge UEs in the current period interference cell.

In an optional embodiment, the processing unit 301 is further configured to measure, according to the control of the serving cell, first uplink RSRP of all UEs in the serving cell in a current period;

the base station interface 302 is further configured to send the measured first RSRPs of all UEs in the serving cell to the serving cell, and after the serving cell measures the second uplink RSRPs of all UEs in the serving cell in the current period, determine whether each UE in the serving cell in the current period is an edge UE in the serving cell according to the first uplink RSRP and the second uplink RSRP of each UE in the serving cell in the current period, so as to obtain all edge UEs in the serving cell.

In the embodiment of the present invention, the specific structure of the processing unit 301 may be various types of computers. For example, the present invention may be a general-purpose processor, a special-purpose processor, a processing circuit, etc., which are not particularly limited in this respect.

In the base station provided in this embodiment, time-frequency resource allocation is performed on edge UEs and non-edge UEs in a serving cell at a subframe time when the serving cell can allocate user time-frequency resources, an obtained first allocation result is sent to an interfering cell, the interfering cell allocates time-frequency resources to the non-edge UEs in the interfering cell according to the first allocation result, the interfering cell allocates time-frequency resources to the edge UEs and the non-edge UEs in the interfering cell at the subframe time when the interfering cell can allocate user time-frequency resources, an obtained second allocation result is sent to the serving cell, and the serving cell allocates time-frequency resources to the non-edge UEs in the serving cell according to the second allocation result, so that time-frequency resource allocation is performed in a time division multiplexing manner, and a situation that time-frequency resource collision occurs between the serving cell and user equipment in the interfering cell during joint transmission is avoided. In addition, as no additional centralized control node is needed to be arranged to allocate the video resources for the user equipment, the resource allocation efficiency is high. In the related art, when resource allocation is performed, a centralized control node needs to be set to allocate time-frequency resources of user equipment in all physical cells in the SFN, and when there are many physical cells in the SFN, there are many corresponding user equipment, so that there are many hardware resources occupied when allocating the time-frequency resources to the user equipment. Hardware resources are usually limited, and the SFN cell can be combined in a limited physical cell. Therefore, the efficiency of resource allocation is low.

To prevent this, the efficiency of resource allocation is improved. With reference to fig. 1 and the above-mentioned implementation environment, an embodiment of the present invention provides a resource allocation method, which is applied to a serving cell and an interfering cell, where the serving cell and the interfering cell are configured with the same parameters, and the parameters at least include a PCI. Referring to fig. 4, the method flow provided by this embodiment includes:

401, determining a subframe which can distribute user time frequency resources for a service cell and an interference cell of a next period; in an optional embodiment, determining a subframe in which a next periodic serving cell and an interfering cell can allocate user time-frequency resources includes:

counting the number of the edge UEs to be scheduled in each subframe and the total number of the UEs in the average serving cell in the current period, and acquiring the number of the edge UEs to be scheduled in each subframe and the total number of the UEs in the average interfering cell in the current period;

if the average number of the edge UEs to be scheduled in each subframe of the current period service cell is larger than a first preset broad value, or the average number of the edge UEs to be scheduled in each subframe of the current period interference cell is larger than a second preset broad value, determining the subframe of user time-frequency resources allocable to the next period service cell and the interference cell according to the proportion of the average number of the total UEs to be scheduled in each subframe of the current period service cell and the interference cell.

In an optional embodiment, before counting the average number of edge UEs to be scheduled per subframe of the serving cell in the current period, the method further includes: controlling an interference cell to measure first uplink RSRPs of all UE in a service cell in a current period, and receiving the first uplink RSRPs of all UE in the service cell sent after the interference cell is measured;

measuring second uplink RSRP of all UE in the serving cell in the current period;

counting the number of edge UEs to be scheduled in each subframe of the average serving cell in the current period, wherein the counting comprises the following steps: determining whether each UE in the current periodic service cell is an edge UE in the service cell according to a first uplink RSRP and a second uplink RSRP of each UE in the current periodic service cell to obtain all edge UEs in the current periodic service cell;

counting the number of the edge UE to be scheduled in each subframe of the current period serving cell in average among all the edge UE in the current period serving cell.

Informing the sub-frame of the allocable user time-frequency resource of the next period interference cell to the interference cell 402;

403, performing time-frequency resource allocation on edge UE and non-edge UE in the serving cell at the time of the subframe when the serving cell can allocate user time-frequency resources, and obtaining a first allocation result;

404, sending the first allocation result to an interference cell, and allocating, by the interference cell, time-frequency resources different from the edge UE of the serving cell to the non-edge UE in the interference cell according to the first allocation result;

405, receiving a second distribution result of the interference cell distributing the time-frequency resources for the edge UE and the non-edge UE in the interference cell at the time of the subframe of the interference cell distributing the time-frequency resources for the user;

and 406, allocating time-frequency resources different from the edge UE of the interference cell for the non-edge UE in the serving cell according to the second allocation result.

In an optional embodiment, before determining that the next periodic serving cell and the interfering cell can allocate subframes of user time-frequency resources, the method further includes:

and sending the measured third RSRP of all the UE in the interference cell to the interference cell, and after measuring the fourth uplink RSRP of all the UE in the interference cell in the current period by the interference cell, determining whether each UE in the interference cell in the current period is the edge UE in the interference cell according to the third uplink RSRP and the fourth uplink RSRP of each UE in the interference cell, so as to obtain all the edge UE in the interference cell. In the method provided by this embodiment, time-frequency resource allocation is performed on edge UEs and non-edge UEs in a serving cell at a subframe time when the serving cell can allocate user time-frequency resources, an obtained first allocation result is sent to an interfering cell, the interfering cell allocates time-frequency resources to the non-edge UEs in the interfering cell according to the first allocation result, the interfering cell allocates time-frequency resources to the edge UEs and the non-edge UEs in the interfering cell at the subframe time when the interfering cell can allocate user time-frequency resources, an obtained second allocation result is sent to the serving cell, and the serving cell allocates time-frequency resources to the non-edge UEs in the serving cell according to the second allocation result, so that time-frequency resource allocation is performed in a time-division multiplexing manner, and a situation that time-frequency resource collision occurs between the serving cell and user equipment in the interfering cell during joint transmission is avoided. In addition, as no additional centralized control node is needed to be arranged to allocate the video resources for the user equipment, the resource allocation efficiency is high. With reference to fig. 1 and the foregoing embodiments, a resource allocation method is provided in an embodiment of the present invention, and the method is applied to a serving cell and an interfering cell, where the serving cell and the interfering cell are configured with the same parameters, and the parameters at least include a PCI. Referring to fig. 5, the method flow provided by this embodiment includes:

501, receiving a notice of a sub-frame which can distribute user time-frequency resources in the next period and is sent by a service cell;

502, determining the sub-frame of the time-frequency resource of the allocable user in the next period according to the notice sent by the service cell;

503, acquiring a first distribution result of the serving cell distributing the time-frequency resources for the edge UE and the non-edge UE in the serving cell at the time of the subframe of the serving cell where the user time-frequency resources can be distributed;

allocating time-frequency resources different from the edge UE of the service cell to the non-edge UE in the interference cell according to the first allocation result 504;

505, at the time of the subframe when the user time-frequency resource can be allocated to the interference cell, performing time-frequency resource allocation on the edge UE and the non-edge UE in the interference cell to obtain a second allocation result;

and 506, sending the second distribution result to the serving cell, and distributing time-frequency resources different from the edge UE of the interference cell to the non-edge UE in the serving cell by the serving cell according to the second distribution result.

In an optional embodiment, before receiving the notification that the next cycle of the subframe of the allocable user time-frequency resource sent by the serving cell, the method further includes: counting the average number of edge UEs to be scheduled per subframe and the total number of UEs in the interference cell in the current period; and sending the statistical result to a service cell, determining that the average number of the edge UEs to be scheduled in each subframe of the service cell is greater than a first preset broad value by the service cell, or determining the subframe of the allocable user time-frequency resource of the service cell and the interference cell in the next period according to the proportion of the average number of the edge UEs to be scheduled in each subframe of the interference cell to the total number of the edge UEs to be scheduled in each subframe of the service cell and the interference cell when the average number of the edge UEs to be scheduled in each subframe of the service cell is greater than a second preset broad value by the service cell.

In an optional embodiment, before counting the average number of edge UEs to be scheduled per subframe of the current periodic interfering cell, the method further includes:

controlling the serving cell to measure third uplink RSRPs of all UE in the interference cell in the current period, and receiving the third uplink RSRPs of all UE in the interference cell sent after the serving cell is measured;

counting the number of edge UEs to be scheduled in each average subframe of the interference cell in the current period, wherein the counting comprises the following steps: determining whether each UE in the current periodic interference cell is an edge UE in the interference cell according to a third uplink RSRP and a fourth uplink RSRP of each UE in the current periodic interference cell to obtain all edge UEs in the interference cell;

In an optional embodiment, before receiving the notification that the next cycle of the subframe of the allocable user time-frequency resource sent by the serving cell, the method further includes:

measuring first uplink RSRP of all UE in the serving cell in the current period according to the control of the serving cell;

and after the serving cell measures second uplink RSRPs of all the UE in the serving cell in the current period, determining whether each UE in the serving cell in the current period is an edge UE in the serving cell according to the first uplink RSRP and the second uplink RSRP of each UE in the serving cell in the current period, and obtaining all the edge UEs in the serving cell.

In the method provided by this embodiment, time-frequency resource allocation is performed on edge UEs and non-edge UEs in a serving cell at a subframe time when the serving cell can allocate user time-frequency resources, an obtained first allocation result is sent to an interfering cell, the interfering cell allocates time-frequency resources to the non-edge UEs in the interfering cell according to the first allocation result, the interfering cell allocates time-frequency resources to the edge UEs and the non-edge UEs in the interfering cell at the subframe time when the interfering cell can allocate user time-frequency resources, an obtained second allocation result is sent to the serving cell, and the serving cell allocates time-frequency resources to the non-edge UEs in the serving cell according to the second allocation result, so that time-frequency resource allocation is performed in a time-division multiplexing manner, and a situation that time-frequency resource collision occurs between the serving cell and user equipment in the interfering cell during joint transmission is avoided. In addition, as no additional centralized control node is needed to be arranged to allocate the video resources for the user equipment, the resource allocation efficiency is high. With reference to fig. 1 and the foregoing embodiments, an embodiment of the present invention provides a resource allocation method, which is applied to a serving cell and an interfering cell, where the serving cell and the interfering cell are configured with the same parameters, and the parameters at least include a PCI. The method provided by the present embodiment is exemplified by combining the contents in the above embodiments. Referring to fig. 6, the method flow provided by this embodiment includes:

a serving cell determines a subframe which can distribute user time-frequency resources to a serving cell and an interference cell in the next period;

the embodiment does not specifically limit the method for determining, by a serving cell, a subframe to which a user time-frequency resource can be allocated to a serving cell and an interfering cell in a next period, and includes, but is not limited to: counting the average number of edge UEs to be scheduled per subframe and the total number of UEs in a current period service cell, and acquiring the average number of edge UEs to be scheduled per subframe and the total number of UEs in a current period interference cell; if the average number of the edge UEs to be scheduled in each subframe of the current period service cell is larger than a first preset width value, or the average number of the edge UEs to be scheduled in each subframe of the current period interference cell is larger than a second preset width value, determining the subframe of the next period service cell and the interference cell, which can distribute user time-frequency resources, according to the proportion of the average number of the total UEs to be scheduled in each subframe of the current period service cell and the interference cell.

The serving cell can count the number of edge UEs to be scheduled per subframe in average in the serving cell in the current period after determining which UEs in the serving cell are edge UEs. The embodiment does not specifically limit the method for counting the average number of edge UEs to be scheduled per subframe of the serving cell in the current period, and before this, the method may include, but is not limited to: the method comprises the steps of controlling an interference cell to measure first uplink RSRPs of all UE in a service cell in a current period, receiving the first uplink RSRPs of all UE in the service cell sent after the interference cell is measured, and measuring second uplink RSRPs of all UE in the service cell in the current period. Specifically, when counting the number of edge UEs to be scheduled per subframe in the average serving cell in the current period, the method includes, but is not limited to: the method comprises the steps of determining whether each UE in a current period service cell is an edge UE in the service cell according to a first uplink RSRP and a second uplink RSRP of each UE in the current period service cell to obtain all edge UEs in the current period service cell, and counting the number of the edge UEs to be scheduled in each subframe of the current period service cell in all the edge UEs in the current period service cell.

The method for controlling the interfering cell to measure the first uplink RSRP of all UEs in the serving cell in the current period is not specifically limited in this embodiment, and includes but is not limited to: the serving cell pre-allocates SRS (Sounding Reference Signal) resources to all UEs in the serving cell; and the interference cell receives the SRS sent by all the UE in the service cell and measures the first uplink RSRP of all the UE in the service cell.

After measuring the first uplink RSRPs of all UEs in the current periodic serving cell, the interfering cell may send the measured first RSRPs of all UEs in the current periodic serving cell to the serving cell, and the serving cell may receive the first uplink RSRPs of all UEs in the serving cell sent after the interference cell is measured. Meanwhile, the serving cell may also measure the second uplink RSRPs of all UEs in the serving cell in the current period, and the embodiment does not specifically limit the way in which the serving cell measures the second uplink RSRPs of all UEs in the serving cell, including but not limited to: and the serving cell receives the SRS sent by all the UE in the serving cell and measures second uplink RSRP of all the UE in the serving cell.

After the serving cell obtains the first uplink RSRP and the second uplink RSRP of all UEs in the serving cell, whether each UE in the serving cell of the current period is an edge UE in the serving cell may be determined according to the first uplink RSRP and the second uplink RSRP of each UE in the serving cell of the current period, so as to obtain all edge UEs in the serving cell of the current period. The embodiment is not particularly limited to the manner of determining whether each UE in the current periodic serving cell is an edge UE in the serving cell according to the first uplink RSRP and the second uplink RSRP of each UE in the current periodic serving cell, and includes but is not limited to: the first uplink RSRP and the second uplink RSRP of each UE are subjected to difference; comparing the difference value between the first uplink RSRP and the second uplink RSRP of each UE with a preset broad value; and determining whether each UE in the serving cell is an edge UE in the serving cell according to the comparison result.

For example, take a UE in a serving cell as an example. And determining that the first uplink RSRP of the UE is-lOOdBm, the second uplink RSRP is-90 dBm and the preset broad value is 15dBm according to the process. Where dBm is in decibels and milliwatts of power. And (3) making a difference value between the first uplink RSRP and the second uplink RSRP of the UE, wherein the absolute value of the obtained difference value is 10 dBm.

If the comparison rule is that the UE is determined to be edge UE in the serving cell when the absolute value of the difference is greater than a preset width, and the UE is determined not to be edge UE in the serving cell when the absolute value of the difference is less than the preset width. Since the absolute value of the difference value of 10 dBm is less than the preset broad value of 15dBm, it is determined that the UE is not an edge UE in the serving cell. Of course, there may be other comparison results according to the specific comparison rule and the preset width, and the present embodiment does not limit the specific comparison rule and the preset width.

Through the above process, which UEs in all UEs in the current periodic serving cell are edge UEs can be determined, and then the number of edge UEs to be scheduled per subframe in the current periodic serving cell can be counted in all edge UEs in the current periodic serving cell. In addition, in this step, it is further required to obtain the average number of edge UEs to be scheduled per subframe and the total number of UEs of the interfering cell in the current period, and regarding the manner of obtaining the average number of edge UEs to be scheduled per subframe and the total number of UEs of the interfering cell in the current period, this embodiment does not specifically limit this, and includes but is not limited to: the interference cell counts the average total UE number to be scheduled and the edge UE number of each subframe of the interference cell in the current period; sending the statistical result to a serving cell; and the serving cell receives the statistical result sent by the interference cell, so that the average number of edge UEs to be scheduled per subframe and the total number of UEs in the interference cell in the current period are obtained according to the statistical result.

The interference cell can count the number of edge UEs to be scheduled per subframe in average in the interference cell of the current period after determining which UEs in the interference cell of the current period are edge UEs. The embodiment does not specifically limit the method for the interfering cell to count the average total number of UEs to be scheduled per subframe and the average number of edge UEs in the interfering cell in the current period, and before this, the method may include, but is not limited to: and controlling the serving cell to measure third uplink RSRPs of all the UE in the interference cell in the current period, and receiving the third uplink RSRPs of all the UE in the interference cell sent after the serving cell is measured. And measuring fourth uplink RSRP of all the UEs in the interference cell in the current period. Specifically, when counting the average total number of UEs to be scheduled per subframe and the number of edge UEs in the interfering cell in the current period, the method may include, but is not limited to: the method comprises the steps of determining whether each UE in a current period interference cell is an edge UE in the interference cell according to a third uplink RSRP and a fourth uplink RSRP of each UE in the current period interference cell to obtain all edge UEs in the interference cell, and counting the number of the edge UEs to be scheduled in each subframe of the current period interference cell in all the edge UEs in the current period interference cell.

In this embodiment, no specific limitation is imposed on the manner in which the interfering cell controls the serving cell to measure the third uplink RSRPs of all UEs in the interfering cell in the current period, and a specific process may refer to the manner in which the serving cell controls the interfering cell to measure the first uplink RSRPs of all UEs in the serving cell in the current period in the above process, which is not described herein again.

After measuring the third uplink RSRPs of all UEs in the interfering cell, the serving cell may send the measured third RSRPs of all UEs in the interfering cell to the interfering cell, and the interfering cell may receive the third uplink RSRPs of all UEs in the interfering cell sent after the serving cell measures. Meanwhile, the interfering cell may also measure fourth uplink RSRPs of all UEs in the interfering cell in the current period, and this embodiment does not specifically limit the manner in which the interfering cell measures the fourth uplink RSRPs of all UEs in the interfering cell in the current period.

After the interfering cell obtains the third uplink RSRP and the fourth uplink RSRP of all UEs in the interfering cell, whether each UE in the interfering cell in the current period is an edge UE in the interfering cell may be determined according to the third uplink RSRP and the fourth uplink RSRP of each UE in the interfering cell in the current period, so as to obtain all edge UEs in the interfering cell. In this embodiment, a specific process may refer to a manner in which the serving cell determines whether each UE in the serving cell of the current period is an edge UE in the serving cell according to the first uplink RSRP and the second uplink RSRP of each UE in the serving cell of the current period, and details are not repeated here.

Through the above process, which UEs in all UEs in the serving cell in the current period are edge UEs are determined, and after which UEs in all UEs in the interfering cell in the current period are determined, the serving cell may count the total number of UEs to be scheduled per subframe in average in the serving cell in the current period, and count the number of edge UEs to be scheduled per subframe in average in the serving cell in the current period in all edge UEs in the serving cell in the current period. The interference cell can count the average total number of UE to be scheduled per subframe of the interference cell in the current period, and count the average number of edge UE to be scheduled per subframe of the interference cell in the current period among all the edge UE in the interference cell in the current period. The present embodiment is not specifically limited in this respect, regarding a manner in which the serving cell counts the average total number of UEs to be scheduled per subframe and the number of edge UEs in the serving cell in the current period, including but not limited to: determining the number of sub-frames divided by a wireless frame in the current period; determining the total UE quantity and the edge UE quantity to be scheduled of each subframe in the current period; and determining the average total UE number to be scheduled and the edge UE number to be scheduled per subframe of the service cell in the current period according to the number of the divided subframes, the total UE number to be scheduled per subframe and the edge UE number.

For example, the length of the radio frame is 9ms (millisecond), and the number of subframes divided by the radio frame in the current period is 3. The divided three subframes are respectively a first subframe, a second subframe and a third subframe, and the length of each subframe is 3 ms.

Determining that the total number of the UEs to be scheduled in the first subframe is 5, wherein the number of the edge UEs to be scheduled is 3. And determining that the total number of the UEs to be scheduled in the second subframe is 4, wherein the number of the edge UEs to be scheduled is 2. The total number of UEs to be scheduled in the third subframe is 3, wherein the number of edge UEs to be scheduled is 1. Accordingly, it may be determined that the average total number of UEs to be scheduled per subframe of the current periodic serving cell is (5 +4+ 3)/3 =4, and the average number of edge UEs to be scheduled per subframe is (3 +2+ 1)/3 = 2.

In addition, regarding the way for the interfering cell to count the total number of UEs to be scheduled per subframe and the number of edge UEs in the interfering cell in the current period, this embodiment is also not specifically limited, and the specific process may refer to the way for the serving cell to count the total number of UEs to be scheduled per subframe and the number of edge UEs in the serving cell in the current period in the above process, which is not described herein again.

After determining the average total number of UEs to be scheduled per subframe and the average number of edge UEs in the serving cell in the current period and the average total number of UEs to be scheduled per subframe and the average number of edge UEs in the interfering cell in the current period, the serving cell may determine whether the average number of edge UEs to be scheduled per subframe in the serving cell in the current period is greater than a first preset width, or determine whether the average number of edge UEs to be scheduled per subframe in the interfering cell in the current period is greater than a second preset width. After judging that the average number of edge UEs to be scheduled per subframe of the serving cell in the current period is greater than a first preset width, or the average number of edge UEs to be scheduled per subframe of the interfering cell in the current period is greater than a second preset width, determining a subframe in which user time-frequency resources can be allocated to the serving cell and the interfering cell in the next period according to the ratio of the average number of total UEs to be scheduled per subframe of the serving cell and the interfering cell in the current period.

The embodiment is not specifically limited in this respect, and includes but is not limited to the following steps: comparing the average number of edge UEs to be scheduled in each subframe of the current period serving cell with a first preset breadth value; and judging whether the average number of the edge UEs to be scheduled in each subframe of the service cell in the current period is larger than a first preset width value or not according to the comparison result.

For example, the average number of edge UEs to be scheduled per subframe in the serving cell in the current period is 4, and the first preset breadth is 3. Comparing the two, the number 4 of edge UEs to be scheduled per subframe of the serving cell in the current period can be determined to be greater than the first preset width 3.

The embodiment is also not specifically limited to the method for determining whether the number of the edge UEs to be scheduled in each subframe of the average serving cell in the current period is greater than the second preset width, and the specific process may refer to the method for determining, by the serving cell, whether the number of the edge UEs to be scheduled in each subframe of the average serving cell in the current period is greater than the first preset width in the above manner, which is not described herein again. It should be noted that the first preset width and the second preset width may be set according to requirements, and the values of the first preset width and the second preset width may be the same or different, which is not specifically limited in this embodiment. In addition, regarding a manner of determining, according to a ratio of the average total number of UEs to be scheduled per subframe of the serving cell and the interfering cell in the current period, subframes in which user time-frequency resources can be allocated to the serving cell and the interfering cell in the next period, this embodiment is not particularly limited to this, and includes but is not limited to: determining the total length of a wireless frame in the next period; and dividing the wireless frame according to the proportion of the number of the total UE to be scheduled in each subframe of the current period serving cell and the interference cell, so as to determine the subframe of the time-frequency resource of the user which can be allocated to the next period serving cell and the interference cell.

For example, the total length of the radio frame in the following period is 10 ms. If the average total number of UEs to be scheduled per subframe of the serving cell in the current period is 9 and the average total number of UEs to be scheduled per subframe of the interfering cell in the current period is 6, it may be determined that the ratio of the average total number of UEs to be scheduled per subframe of the serving cell and the interfering cell in the current period is 3: 2. And dividing the radio frame into 10 subframes according to the proportion of the total quantity of the UE to be scheduled in each subframe of the current period serving cell and the interference cell. Wherein the length of each subframe is lms.

Since the ratio of the number of the total UEs to be scheduled per subframe of the serving cell and the interfering cell in the current period is 3: 2, it can be determined that the number of subframes in which the user time-frequency resources can be allocated to the serving cell in the next period is 6, and the number of subframes in which the user time-frequency resources can be allocated to the interfering cell in the next period is 4.

It should be noted that, because the radio frame in the next period is divided into 10 subframes, any 6 subframes in the 10 subframes may be used as the subframes where the user time-frequency resources may be allocated to the serving cell in the next period when the subframes are specifically allocated, and the remaining 4 subframes are used as the subframes where the user time-frequency resources may be allocated to the interfering cell in the next period. For example, the first 6 subframes of the radio frame may be used as the subframes where the serving cell in the next period may allocate the user time-frequency resources, and the last 4 subframes may be used as the subframes where the serving cell in the next period may allocate the user time-frequency resources.

A serving cell informs the interference cell of a subframe of user time-frequency resources which can be allocated to the interference cell in the next period 602;

through the above step 601, after determining that the interference cell can allocate the subframe of the user time-frequency resource, the serving cell may notify the interference cell of the subframe of the user time-frequency resource allocable by the interference cell in the next period. Specifically, the notification may be performed in the form of a data packet transmitted through a wireless network, which is not specifically limited in this embodiment. 603, the interference cell receives the notice of the sub-frame which can distribute the user time frequency resource in the next period and is sent by the service cell;

the present embodiment does not specifically limit the manner in which the interfering cell receives the notification of the subframe in which the user time-frequency resource can be allocated in the next period sent by the serving cell, including but not limited to receiving the notification according to the manner in which the serving cell sends the notification in step 602, and is not described herein again.

604, the interference cell determines the sub-frame of the time-frequency resource which can be allocated to the user in the next period according to the notice sent by the service cell;

according to the step 602, since the serving cell determines the subframe to which the serving cell and the interfering cell in the next period can allocate the user time-frequency resource, the interfering cell can determine the subframe to which the user time-frequency resource can be allocated in the next period after receiving the notification sent by the serving cell. For example, in the above steps, the serving cell determines that the subframe to which the serving cell can allocate the user time-frequency resource in the next period is the first 6 subframes in the radio frame, and the interfering cell determines that the subframe to which the user time-frequency resource can be allocated in the next period is the last 4 subframes in the radio frame in the next period after receiving the notification sent by the serving cell. If the cycle length of the radio frame is 10ms, it can be determined that time-frequency resources need to be allocated to the user in the last 4ms of the radio frame.

605, at the time of a subframe when the serving cell can distribute user time-frequency resources, the serving cell distributes the time-frequency resources to edge UEs and non-edge UEs in the serving cell to obtain a first distribution result;

the embodiment does not specifically limit the way in which the serving cell performs time-frequency resource allocation for the edge UE and the non-edge UE in the serving cell, and includes but is not limited to: a Physical Downlink Control Channel (PDCCH) for transmitting Control information is allocated to the edge UE and the non-edge UE in the serving cell, and a Physical Downlink Shared Channel (PDSCH) for transmitting Shared information is allocated to the edge UE and the non-edge UE in the serving cell.

The PDCCH may be allocated to each edge UE and non-edge UE in the serving cell, the serving cell may issue control information through the PDCCH allocated to each UE, and may also allocate a PDSCH to each edge UE and non-edge UE in the serving cell, and the serving cell may issue shared information through the PDSCH allocated to each UE, which is not specifically limited in this embodiment. In addition, both the PDCCH and the PDSCH allocated are a certain frequency within the available frequency range, and may be allocated according to the specific implementation environment, which is not specifically limited in this embodiment.

The serving cell sends the first allocation result to the interfering cell 606;

in this embodiment, a specific manner for the serving cell to send the first allocation result to the interfering cell is not specifically defined, and the specific process may refer to the manner for the serving cell to send the notification to the interfering cell in step 602, which is not described herein again.

607, the interference cell obtains the first distribution result of the time-frequency resource distributed by the service cell for the edge UE and the non-edge UE in the service cell;

in this embodiment, a way for the interfering cell to obtain the first allocation result of the time-frequency resource allocated by the serving cell to the edge UE and the non-edge UE in the serving cell is not specifically limited, and the specific process may refer to a way for the interfering cell to receive the notification sent by the serving cell in step 603, which is not described herein again.

608, the interference cell allocates time frequency resources different from the edge UE of the service cell for the non-edge UE in the interference cell according to the first allocation result;

in this embodiment, a specific manner in which the interfering cell allocates time-frequency resources, which are different from the time-frequency resources allocated by the serving cell to the non-edge UE in the interfering cell according to the first allocation result, is not specifically limited, and a specific process may refer to the manner in which the serving cell allocates time-frequency resources to the edge UE and the non-edge UE in the serving cell in step 605, which is not described herein again.

It should be noted that, in the method provided in this embodiment, after allocating time-frequency resources to non-edge UEs in an interfering cell and after allocating different time-frequency resources to edge UEs of a serving cell, an interfering cell and the serving cell may jointly send a signal to the edge UEs of the serving cell, so as to reduce the influence caused by signal attenuation and interference of the interfering cell when the edge UEs of the serving cell receive the signal, and further improve the quality of the signal received by the edge UEs of the serving cell.

Since the interfering cell may need to send signals to the non-edge UE in the interfering cell in addition to the edge UE of the serving cell during the joint sending, a collision may occur between the time-frequency resource used by the interfering cell when sending signals to the edge UE of the serving cell and the time-frequency resource used by the interfering cell when sending signals to the non-edge UE of the interfering cell. Based on the above principle, when the interfering cell allocates time-frequency resources to the non-edge UE in the interfering cell, it needs to allocate time-frequency resources, which are different from the edge UE in the serving cell, to the non-edge UE in the interfering cell according to the first allocation result, so as to avoid the occurrence of the above conflict and the failure of sending signals. For example, the interfering cell may allocate a PDCCH and a PDSCH different from edge UEs of the serving cell to non-edge UEs within the interfering cell.

609, at the time of the subframe when the interference cell can distribute the user time-frequency resources, the interference cell distributes the time-frequency resources to the edge UE and the non-edge UE in the interference cell to obtain a second distribution result;

in this embodiment, a specific limitation is not imposed on the way in which the interfering cell performs time-frequency resource allocation on the edge UE and the non-edge UE in the interfering cell, and the specific process may refer to the way in which the serving cell performs time-frequency resource allocation on the edge UE and the non-edge UE in the serving cell in step 605, which is not described herein again.

The interference cell sends the second distribution result to the service cell 610;

in this embodiment, a specific manner for the interfering cell to send the second allocation result to the serving cell is not specifically defined, and the specific process may refer to the manner for the serving cell to send the first allocation result to the interfering cell in step 606, which is not described herein again.

611, the serving cell receives a second allocation result of time-frequency resources allocated by the interfering cell to the edge UE and the non-edge UE in the interfering cell;

in this embodiment, a specific manner for the serving cell to receive the second allocation result of the time-frequency resource allocated by the interfering cell to the edge UE and the non-edge UE in the interfering cell is not specifically limited, and the specific process may refer to the manner in which the interfering cell obtains the first allocation result of the time-frequency resource allocated by the serving cell to the edge UE and the non-edge UE in the serving cell in the above step, and details are not repeated here.

And 612, the serving cell allocates time-frequency resources, which are different from the edge UE of the interference cell, to the non-edge UE in the serving cell according to the second allocation result.

In this embodiment, a specific manner in which the serving cell allocates time-frequency resources, which are different from the time-frequency resources, to the non-edge UEs in the serving cell according to the second allocation result is not specifically limited, and a specific process may refer to the manner in which the interfering cell allocates time-frequency resources, which are different from the time-frequency resources, to the non-edge UEs in the interfering cell according to the first allocation result in step 608, and details are not repeated here.

It should be noted that, in the above steps 605 to 608, the serving cell and the interfering cell respectively perform the time-frequency resource allocation process for the edge UE and the non-edge UE in the belonging range at the time of the subframe where the serving cell can allocate the user time-frequency resource, and in the steps 609 to 612, the serving cell and the interfering cell respectively perform the time-frequency resource allocation process for the edge UE and the non-edge UE in the belonging range at the time of the subframe where the interfering cell can allocate the user time-frequency resource. As can be known from the content in step 601, when the subframes are allocated, a certain number of arbitrary subframes in all subframes may be used as subframes in which the serving cell in the current period may allocate user time-frequency resources, and therefore, the execution processes in steps 605 to 608 and steps 609 to 612 are not necessarily the above sequential execution process, and in a specific case, the method processes in steps 609 to 612 may be executed first, and the method processes in steps 605 to 608 are executed later, which is not specifically limited in the present embodiment.

For example, when allocating subframes, the first 4 subframes of the 10 subframes of the radio frame are used as subframes where user time-frequency resources can be allocated to the interference cell in the current period, and the remaining last 6 subframes are used as subframes where user time-frequency resources can be allocated to the serving cell in the current period. Of course, other execution flows may be possible according to actual situations, and are not described herein again.

Optionally, through the above method and process, after the serving cell allocates time-frequency resources to the edge UE in the serving cell, and the interfering cell allocates time-frequency resources to the edge UE in the serving cell, the interfering cell and the serving cell may jointly send a signal to the edge UE in the serving cell by using the time-frequency resources allocated to the interfering cell and, for example, send different information through the allocated PDCCH and PDSCH, so as to reduce the influence caused by signal attenuation and interference of the interfering cell when the edge UE in the serving cell receives the signal, and improve the received signal quality.

In addition, the present embodiment does not specifically limit the types of serving cells and interfering cells, including but not limited to SFN cells combined by a plurality of physical cells. Based on the principle, the method provided by this embodiment may be applied to a high-speed rail scene, and the time-frequency resources of the UEs in the SFN cells are allocated by configuring a plurality of SFN cells combined along the high-speed rail to the same parameters such as PCI. Certainly, the method can also be applied to indoor scenes, and the time-frequency resources of the UE in the SFN cells are distributed by configuring a plurality of combined SFN cells of each layer in a high-rise building into the same parameters such as the PCI. Besides the above application scenarios, there may be other application scenarios, and the present embodiment does not specifically limit the application scenarios to be used. By adopting the method provided by the embodiment, the quality of the UE receiving signals in the SFN cell can be effectively improved, and the user experience is improved.

In the method provided by this embodiment, time-frequency resource allocation is performed on edge UEs and non-edge UEs in a serving cell at a subframe time when the serving cell can allocate user time-frequency resources, an obtained first allocation result is sent to an interfering cell, the interfering cell allocates time-frequency resources to the non-edge UEs in the interfering cell according to the first allocation result, the interfering cell allocates time-frequency resources to the edge UEs and the non-edge UEs in the interfering cell at the subframe time when the interfering cell can allocate user time-frequency resources, an obtained second allocation result is sent to the serving cell, and the serving cell allocates time-frequency resources to the non-edge UEs in the serving cell according to the second allocation result, so that time-frequency resource allocation is performed in a time-division multiplexing manner, and a situation that time-frequency resource collision occurs between the serving cell and user equipment in the interfering cell during joint transmission is avoided. In addition, as no additional centralized control node is needed to be arranged to allocate the video resources for the user equipment, the resource allocation efficiency is high. Fig. 7 is a block diagram of a resource allocation system according to an exemplary embodiment. Referring to fig. 7, the system includes a source first base station 701 and a second base station 702. Wherein the content of the first and second substances,

the first base station 701 is a base station in the embodiment corresponding to fig. 2, and details of the embodiment corresponding to fig. 2 are specifically described, and are not repeated herein;

the second base station 702 is a base station in the embodiment corresponding to fig. 3, and details of the embodiment corresponding to fig. 3 are specifically described, and are not repeated herein;

according to the system provided by the embodiment of the invention, time-frequency resource allocation is carried out on edge UE and non-edge UE in a service cell at the time of a subframe when the service cell can allocate user time-frequency resources, an obtained first allocation result is sent to an interference cell, the interference cell allocates the time-frequency resources for the non-edge UE in the interference cell according to the first allocation result, the interference cell allocates the time-frequency resources for the edge UE and the non-edge UE in the interference cell at the time of the subframe when the interference cell can allocate the user time-frequency resources, an obtained second allocation result is sent to the service cell, and the service cell allocates the time-frequency resources for the non-edge UE in the service cell according to the second allocation result, so that the time-frequency resources are allocated in a time-division multiplexing mode, and the condition that the user equipment in the service cell and the interference time-frequency cell have resource conflict during combined transmission is avoided. In addition, the video resources are distributed to the user equipment without arranging an additional centralized control node, so that the resource distribution efficiency is high.

It should be noted that: in the foregoing embodiment, when allocating resources to a user equipment, the base station is described by way of example only by dividing the functional modules, and in practical application, the function allocation may be completed by different functional modules according to needs, that is, an internal structure of the base station is divided into different functional modules to complete all or part of the functions described above. In addition, the embodiments of the base station and the resource allocation method provided in the foregoing embodiments belong to the same concept, and specific implementation processes thereof are detailed in the embodiments of the method and will not be described herein again.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

Claims book

1. A base station, wherein the base station is located in a serving cell, and the serving cell and an interfering cell are configured with the same parameters, and the parameters at least include a physical cell identity PCI, and the base station comprises: a processing unit, configured to determine a subframe in which user time-frequency resources can be allocated to the serving cell and the interfering cell in a next cycle;

a base station interface, configured to notify the interfering cell of a subframe to which user time-frequency resources can be allocated in the interfering cell in the next period;

the processing unit is further configured to perform time-frequency resource allocation on edge User Equipment (UE) and non-edge UE in the serving cell at a subframe time when the serving cell can allocate user time-frequency resources, so as to obtain a first allocation result;

the base station interface is further configured to send the first allocation result to the interfering cell, and the interfering cell allocates, according to the first allocation result, a time-frequency resource different from that of the edge UE of the serving cell to the non-edge UE in the interfering cell;

the base station interface is further configured to receive a second allocation result of the interference cell allocating time-frequency resources to edge UEs and non-edge UEs in the interference cell at a subframe time when the interference cell may allocate user time-frequency resources;

the processing unit is further configured to allocate, according to the second allocation result, time-frequency resources, which are different from the edge UE of the interfering cell, to the non-edge UE in the serving cell.

2. The base station according to claim 1, wherein the processing unit is further configured to count the number of edge UEs to be scheduled per subframe in the serving cell in the current period and the total number of UEs;

the base station interface is further configured to obtain the number of edge UEs to be scheduled per subframe and the total number of UEs in the interference cell in the current period;

the processing unit is further configured to determine, when the average number of edge UEs to be scheduled per subframe of the serving cell in the current period is greater than a first preset width, or when the average number of edge UEs to be scheduled per subframe of the interfering cell in the current period is greater than a second preset width, a subframe in which user time-frequency resources can be allocated to the serving cell and the interfering cell in a next period according to a ratio of the average number of edge UEs to be scheduled per subframe of the serving cell and the interfering cell in the current period to the total number of UEs to be scheduled per subframe of the serving cell and the interfering cell in the current period.

3. The base station of claim 2, wherein the base station interface is further configured to control the interfering cell to measure, in a current period, first uplink reference signal received frequencies RSRP of all UEs in the serving cell;

the base station interface is further configured to receive first uplink RSRPs of all UEs in the serving cell, which are sent after the interference cell measurement;

the processing unit is further configured to measure, in a current period, second uplink RSRP of all UEs in the serving cell;

the processing unit is further configured to determine whether each UE in the serving cell in the current period is an edge UE in the serving cell according to a first uplink RSRP and a second uplink RSRP of each UE in the serving cell in the current period, obtain all edge UEs in the serving cell in the current period, and count the number of edge UEs to be scheduled in each subframe of the serving cell in the current period in all edge UEs in the serving cell in the current period.

4. The base station according to any of claims 1 to 3, wherein the processing unit is further configured to measure, at a current period according to the control of the interfering cell, third uplink reference signal received frequencies (RSRP) of all UEs in the interfering cell;

the base station interface is further configured to send the measured third RSRPs of all UEs in the interfering cell to the interfering cell, and after the interfering cell measures fourth uplink RSRPs of all UEs in the interfering cell in a current period, determine whether each UE in the interfering cell in the current period is an edge UE in the interfering cell according to the third uplink RSRP and the fourth uplink RSRP of each UE in the interfering cell, so as to obtain all edge UEs in the interfering cell. 5. A base station, wherein the base station is located in an interfering cell, and the interfering cell and a serving cell are configured with the same parameters, and the parameters at least include a physical cell identity PCI, and the base station comprises: a base station interface, configured to receive a notification of a subframe, where a user time-frequency resource can be allocated in a next period, sent by the serving cell;

the processing unit is used for determining a subframe which can distribute the time-frequency resources of the user in the next period according to the notification sent by the service cell;

the base station interface is further configured to obtain a first allocation result of the serving cell allocating time-frequency resources to edge User Equipment (UE) and non-edge UE in the serving cell at a subframe time when the serving cell may allocate the time-frequency resources of the user;

the processing unit is further configured to allocate, according to the first allocation result, a time-frequency resource different from an edge UE of the serving cell to a non-edge UE in the interfering cell;

the processing unit is further configured to perform time-frequency resource allocation on edge UEs and non-edge UEs in the interfering cell at a subframe time when the interfering cell can allocate user time-frequency resources, so as to obtain a second allocation result;

and the base station interface is further configured to send the second allocation result to the serving cell, and the serving cell allocates, according to the second allocation result, time-frequency resources different from the edge UE of the interfering cell to the non-edge UE in the serving cell.

6. The base station according to claim 5, wherein the processing unit is further configured to count the number of edge UEs to be scheduled per subframe and the total number of UEs to be scheduled in the interfering cell in the current period;

and the base station interface is further configured to send the statistical result to the serving cell, and the serving cell determines that the number of edge UEs to be scheduled in each subframe of the serving cell is greater than a first preset width, or when the number of edge UEs to be scheduled in each subframe of the interfering cell is greater than a second preset width, determines a subframe of user time-frequency resources allocable to the serving cell and the interfering cell in a next period according to a ratio of the number of total UEs to be scheduled in each subframe of the serving cell and the interfering cell. 7. The base station of claim 6, wherein the processing unit is further configured to control the serving cell to measure, in a current period, third uplink reference signal receiving frequencies RSRP of all UEs in the interfering cell;

the base station interface is further configured to receive a third uplink RSRP of all UEs in the interfering cell, which is sent after the serving cell is measured;

the processing unit is further configured to measure fourth uplink RSRP of all UEs in the interfering cell in a current period;

the processing unit is further configured to determine whether each UE in the interfering cell in the current period is an edge UE in the interfering cell according to a third uplink RSRP and a fourth uplink RSRP of each UE in the interfering cell in the current period, so as to obtain all edge UEs in the interfering cell;

counting the number of the edge UE to be scheduled in each sub-frame of the interference cell in the current period on average in all the edge UE in the interference cell in the current period.

8. The base station according to any of claims 6 to 7, wherein the processing unit is further configured to measure, at a current period according to the control of the serving cell, first uplink reference signal received frequencies, RSRPs, of all UEs in the serving cell;

the base station interface is further configured to send the measured first RSRPs of all UEs in the serving cell to the serving cell, and after the serving cell measures second uplink RSRPs of all UEs in the serving cell in a current period, determine whether each UE in the serving cell in the current period is an edge UE in the serving cell according to the first uplink RSRP and the second uplink RSRP of each UE in the serving cell in the current period, so as to obtain all edge UEs in the serving cell.

9. A resource allocation method is applied to a serving cell and an interfering cell, wherein the serving cell and the interfering cell are configured with the same parameters, and the parameters at least include a Physical Cell Identity (PCI), and the method comprises the following steps:

determining a subframe of the service cell and the interference cell which can allocate user time-frequency resources in the next period; informing the interference cell of the sub-frame of the allocable user time-frequency resource of the interference cell in the next period; performing time-frequency resource allocation on edge User Equipment (UE) and non-edge UE in the serving cell at the time of the subframe at which the user time-frequency resource can be allocated to the serving cell to obtain a first allocation result; sending the first allocation result to the interference cell, and allocating, by the interference cell, a time-frequency resource different from that of the edge UE of the serving cell to the non-edge UE in the interference cell according to the first allocation result; receiving a second distribution result of time-frequency resources distributed by the interference cell for edge UE and non-edge UE in the interference cell at the time of a subframe where the user time-frequency resources can be distributed by the interference cell; and allocating time-frequency resources different from the edge UE of the interference cell to the non-edge UE in the service cell according to the second allocation result.

10. The method of claim 9, wherein the determining a subframe of user time-frequency resources that can be allocated to the serving cell and the interfering cell in a next cycle comprises:

counting the number of the edge UEs to be scheduled per subframe and the total number of the UEs of the serving cell in the current period, and acquiring the number of the edge UEs to be scheduled per subframe and the total number of the UEs of the interfering cell in the current period; if the number of the edge UEs to be scheduled in each subframe of the average serving cell in the current period is greater than a first preset value, or the number of the edge UEs to be scheduled in each subframe of the average interfering cell in the current period is greater than a second preset value, determining the subframe of the time-frequency resource allocable for users of the serving cell and the interfering cell in the next period according to the proportion of the number of the total UEs to be scheduled in each subframe of the average serving cell and the interfering cell in the current period.

11. The method of claim 10, wherein before counting the number of edge UEs to be scheduled per subframe in the serving cell in the current period, the method further comprises:

controlling an interference cell to measure first uplink reference signal receiving frequencies (RSRPs) of all UE in the serving cell in a current period, and receiving the first uplink RSRPs of all UE in the serving cell sent after the interference cell is measured;

the method comprises the following steps of measuring second uplink RSRP of all UE in the service cell in the current period, and counting the average number of edge UE to be scheduled per subframe of the service cell in the current period, wherein the counting comprises the following steps: determining whether each UE in the serving cell in the current period is an edge UE in the serving cell according to a first uplink RSRP and a second uplink RSRP of each UE in the serving cell in the current period, and obtaining all edge UEs in the serving cell in the current period;

and counting the number of the edge UE to be scheduled in each subframe of the serving cell in the current period on average in all the edge UE in the serving cell in the current period.

12. The method according to any of claims 9 to 11, wherein said determining a next period before the subframe in which the serving cell and the interfering cell can allocate user time-frequency resources further comprises:

measuring third uplink reference signal receiving frequencies (RSRP) of all UE in the interference cell in a current period according to the control of the interference cell;

and sending the measured third RSRP of all the UE in the interference cell to the interference cell, and after the interference cell measures the fourth uplink RSRP of all the UE in the interference cell in the current period, determining whether each UE in the interference cell in the current period is an edge UE in the interference cell according to the third uplink RSRP and the fourth uplink RSRP of each UE in the interference cell, so as to obtain all the edge UE in the interference cell.

13. A resource allocation method is applied to a serving cell and an interfering cell, wherein the serving cell and the interfering cell are configured with the same parameters, and the parameters at least include physical' J and a cell identity (PCI), and the method comprises the following steps:

receiving a notice of a sub-frame which can distribute user time-frequency resources in the next period and is sent by the serving cell; determining a subframe capable of allocating user time-frequency resources in the next period according to the notification sent by the serving cell; acquiring a first distribution result of time-frequency resources distributed by the serving cell to edge User Equipment (UE) and non-edge UE in the serving cell at a subframe time when the serving cell can distribute the time-frequency resources of users, and distributing time-frequency resources different from the edge UE of the serving cell to the non-edge UE in the interference cell according to the first distribution result;

performing time-frequency resource allocation on edge UE and non-edge UE in the interference cell at the time of the subframe at which the user time-frequency resource can be allocated to the interference cell to obtain a second allocation result; and sending the second distribution result to the serving cell, and distributing time-frequency resources, which are different from the edge UE of the interference cell, to the non-edge UE in the serving cell by the serving cell according to the second distribution result.

14. The method of claim 13, wherein before the receiving the notification of the next periodic sub-frame of allocable user time-frequency resources sent by the serving cell, further comprising:

counting the average number of edge UEs to be scheduled per subframe and the total number of UEs in the interference cell in the current period;

and sending the statistical result to the service cell, determining that the average number of the edge UEs to be scheduled in each subframe of the service cell is greater than a first preset broad value by the service cell, or determining the subframe of user time-frequency resources allocable to the service cell and the interference cell in the next period according to the proportion of the average number of the edge UEs to be scheduled in each subframe of the interference cell to the total number of the edge UEs to be scheduled in each subframe of the service cell and the interference cell when the average number of the edge UEs to be scheduled in each subframe of the interference cell is greater than a second preset broad value.

15. The method of claim 14, wherein before counting the average number of edge UEs to be scheduled per subframe in the interfering cell in the current period, the method further comprises:

controlling the serving cell to measure third uplink reference signal receiving frequencies (RSRPs) of all UE in the interfering cell in a current period, and receiving the third uplink RSRPs of all UE in the interfering cell, which are sent after the serving cell is measured;

measuring fourth uplink RSRP of all UE in the interference cell in the current period;

the counting the number of the edge UEs to be scheduled per subframe of the average interference cell in the current period includes: the method according to any of claims 13 to 15, wherein before receiving the notification of the subframe of the next cycle allocable user time-frequency resource sent by the serving cell, the method further comprises:

measuring first uplink reference signal receiving frequencies (RSRP) of all UE in the serving cell in a current period according to the control of the serving cell;

and after the serving cell measures second uplink RSRPs of all the UE in the serving cell in the current period, determining whether each UE in the serving cell in the current period is an edge UE in the serving cell according to the first uplink RSRP and the second uplink RSRP of each UE in the serving cell in the current period, and obtaining all the edge UE in the serving cell.

17. A resource allocation system, characterized in that the system comprises a first base station and a second base station, wherein the first base station is a base station according to any one of claims 1 to 4;

the second base station is as claimed in any one of claims 5 to 8.