CN102118844B - Dispatching method, dispatching device and base station - Google Patents

Abstract

The invention discloses a scheduling method, equipment and a base station. The method includes: determining the user terminal at the cell edge in the cell; acquiring the service quality of the user terminal at the cell edge and the user terminal in the interfering neighboring cell Quality of service, the interfering neighboring cell is an adjacent cell causing interference to the user terminal; when the quality of service of the user terminal at the edge of the cell is lower than the quality of service of the user terminal in at least one interfering neighboring cell, when scheduling the When the user terminal is at the cell edge, control to reduce the maximum transmit power of the at least one interfering neighboring cell. The present invention can reduce the maximum transmission power of the interfering adjacent cell when scheduling the user terminal, thereby reducing the interference of the interfering adjacent cell to the user terminal and improving the service quality of the user terminal.

Description

Scheduling method, device and base station

technical field

The present invention relates to the technical field of mobile communication, in particular to a scheduling method, equipment and base station.

Background technique

In self-interfering communication systems, such as Universal Mobile Telecommunications System (UMTS), users using the same frequency interfere with each other.

In the UMTS system, a base station usually uses one carrier frequency to establish three cells. Adjacent cells use the same frequency, causing mutual interference between them. User terminals at the edge of the cell receive the most interference, and their service quality is the best in the cell. Usually at a low level. In addition, between cells belonging to different base stations, if the carrier frequency is the same, their signals also constitute mutual interference.

In the process of researching the prior art, the inventor found that user terminals at the edge of a cell suffer relatively large interference.

Contents of the invention

The present invention provides a scheduling method, equipment and base station, which can reduce the interference of cell edge user terminals from interfering adjacent cells.

In order to solve the above technical problems, the embodiments of the present invention are achieved through the following technical solutions:

The scheduling method provided by the embodiment of the present invention includes:

Determining the user terminal at the edge of the cell in the cell;

Acquiring the quality of service of the user terminal at the edge of the cell and the quality of service of the user terminal in an interfering adjacent cell, where the interfering adjacent cell is an adjacent cell that interferes with the user terminal at the edge of the cell;

When the service quality of the user terminal at the edge of the cell is lower than the service quality of the user terminal in at least one interfering neighboring cell, when scheduling the user terminal at the cell edge, control the reduction of the maximum transmit power of the at least one interfering neighboring cell .

The embodiment of the present invention also provides a scheduling device, including:

a user terminal determining unit, configured to determine a user terminal at the edge of the cell in the cell;

A quality of service acquiring unit, configured to acquire the quality of service of the user terminal at the edge of the cell and the quality of service of the user terminal in an interfering neighboring cell, where the interfering neighboring cell is a neighboring cell causing interference to the user terminal;

a judging unit, configured to judge whether the quality of service of the user terminal at the edge of the cell is lower than the quality of service of the user terminal in at least one interfering neighboring cell;

A power adjustment unit, configured to control reducing the maximum transmission power of the at least one interfering neighboring cell when the judgment result of the judging unit is yes, when scheduling the user terminal at the edge of the cell.

An embodiment of the present invention also provides a base station, where the base station includes the above scheduling device.

In the scheduling method provided by the embodiment of the present invention, when it is judged that the interfering neighboring cell will cause greater interference to the user terminal in the local cell, that is, when it is judged that the quality of service of the user terminal in the local cell is lower than the service quality of the interfering neighboring cell, When scheduling the user terminal, the maximum transmission power of the interfering neighboring cell is reduced, thereby reducing the interference of the interfering neighboring cell to the user terminal and improving the service quality of the user terminal.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the prior art and the accompanying drawings that need to be used in the embodiments. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 is a flowchart of a scheduling method provided by an embodiment of the present invention;

Fig. 2 is a flowchart of a scheduling method provided by another embodiment of the present invention;

FIG. 3 is an application scenario diagram of a scheduling method provided by an embodiment of the present invention;

Fig. 4 is a flowchart of a scheduling method provided by another embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a scheduling device provided by an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a user terminal determining unit in a scheduling device provided by an embodiment of the present invention;

Fig. 7 is a schematic structural diagram of a quality of service acquisition unit in a scheduling device provided by an embodiment of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The invention provides a scheduling method, equipment and base station. In order to better understand the technical solutions of the present invention, the embodiments provided by the present invention will be described in detail below in conjunction with the accompanying drawings.

Referring to Fig. 1, Fig. 1 is a flowchart of a scheduling method provided by an embodiment of the present invention, the method may include:

101. Determine the user terminal at the edge of the cell in the current cell.

Specifically, the scheduling device (located in the base station or the evolved base station) can determine the user terminal at the edge of the cell in the current cell. Among them, the base station can determine whether the user terminal is at the edge of the cell in a variety of ways, for example, determine whether the user terminal is at the edge of the cell according to the quality parameters of the own cell and neighboring cells included in the measurement report of the user terminal, which is not done in this embodiment limited.

102. Acquire the service quality of the user terminal at the cell edge and the service quality of the user terminal in an interfering neighboring cell, where the interfering neighboring cell is an adjacent cell causing interference to the user terminal at the cell edge.

Specifically, after the user terminal at the edge of the cell in the current cell is determined. For each user equipment at the edge of the cell, the scheduling device may also obtain the quality of service Q1 of the user terminal at the cell edge and the quality of service Q2 of the user equipment in the interfering neighboring cell of the user terminal, and then perform step 103 .

Wherein, the interfering adjacent cell is an adjacent cell causing interference to the user terminal at the edge of the cell. The cell where the user terminal is located may physically have multiple neighboring cells, but the neighboring cell that interferes with the user terminal is an interfering neighboring cell. The embodiment of the present invention can determine whether the quality parameter value of the adjacent cell of the user terminal at the cell edge is greater than a preset threshold, and if so, the adjacent cell is an interfering neighboring cell of the user terminal at the cell edge.

The interfering neighboring cell may belong to the same base station or a different base station from the cell where the user terminal currently resides. For a user terminal at the edge of the cell, there may be one or more interfering neighboring cells. The scheduling device can acquire the service quality of any user terminal in the interfering neighboring cell.

In addition, the scheduling device may also acquire the service quality of the user terminal at the cell edge and the service quality of the user terminal in the interfering neighboring cell with the same user priority or the same service type as the user terminal at the cell edge.

103. When the service quality of the user terminal at the cell edge is lower than the service quality of the user terminal in at least one interfering neighboring cell, when scheduling the user terminal at the cell edge, control to reduce the maximum transmit power of the at least one interfering neighboring cell.

Specifically, the user terminal at the edge of the cell is user terminal A, and the scheduling device obtains the service quality Q1 of user terminal A, and there are two interfering adjacent cells of user terminal A: cell 1 and cell 2, assuming that cell 2 and If the service quality Q2 of user terminal B with the same priority as user terminal A is greater than Q1, it means that cell 2 will cause greater interference to user terminal A. When scheduling user terminal A, the scheduling device can control and reduce the maximum transmit power of cell 2.

In the scheduling method provided by the embodiment of the present invention, when it is judged that the interfering neighboring cell will cause greater interference to the user terminal at the cell edge, it is judged that the service quality of the cell edge user terminal in this cell is lower than that of at least one interfering neighboring cell. In the case of the quality of service of the user terminal at the edge of the cell, the maximum transmit power of the interfering neighboring cell that causes greater interference to the user terminal at the cell edge can be reduced when scheduling the user terminal at the cell edge, thereby reducing the impact of the interfering neighboring cell on The interference of the user terminal improves the service quality of the user terminal.

In the scheduling method provided by the embodiment of the present invention, the adjacent cell that causes interference to the user terminal at the cell edge is the adjacent cell of the user terminal at the cell edge whose quality parameter value is greater than a preset threshold.

In the embodiment of the present invention, the quality of service of the user terminal can be characterized by the following parameters:

1) The service rate obtained by the user terminal.

Specifically, the service rate obtained by the user terminal may be the downlink transmission rate of the user terminal.

2) The ratio of the service rate obtained by the user terminal to the requested service rate.

Specifically, the scheduling device may obtain the service rate requested by the user terminal, and then use the obtained service rate and the requested service rate to represent the service quality of the user terminal.

It should be pointed out that only two parameters representing the quality of service are given above, and those skilled in the art may also use other parameters to represent the quality of service of the user terminal.

Referring to FIG. 2, FIG. 2 is a flow chart of a scheduling method provided by another embodiment of the present invention, the method may include:

201. Receive a measurement report sent by a user terminal in the current cell, where the measurement report carries quality parameters of neighboring cells.

Specifically, the user terminal in the communication network may send a measurement report to the scheduling device, and the policy report carries the value of the quality parameter of the adjacent cell of the cell where the user terminal is located.

Among them, the quality parameter of the cell can be the received signal code power (ReceivedSignal Code Power, RSCP) of the pilot channel or the received energy/power density per chip (Received energy perchip divided by the power density in the band, Ec/No) or other.

202. If the value of the quality parameter of the neighboring cell is greater than the preset threshold, determine the user terminal as the user terminal at the edge of the cell.

Specifically, the scheduling device judges whether the value of the quality parameter of the adjacent cell is greater than a preset threshold, and judges whether the adjacent cell and the current cell belong to the same base station, and if the judgment results are both yes, it means that the user terminal is at the edge of the cell. The adjacent cell is an interfering adjacent cell, and the interfering adjacent cell and the cell where the user terminal currently resides belong to the same cell. Wherein, the interfering neighboring cell and the current cell may also belong to different base stations, and the preset threshold may be flexibly set according to actual conditions.

It should be noted that, in the embodiment of the present invention, it is also possible to determine whether the user terminal is at the edge of the cell according to other methods, which is not limited in the embodiment of the present invention.

203. Acquire the service quality of the user terminal at the cell edge according to the measurement report sent by the user terminal at the cell edge.

Specifically, the measurement report sent by the user terminal at the cell edge carries the service quality Q3 of the user terminal. The scheduling device acquires the service quality Q3 of the user terminal at the edge of the cell in the current cell according to the measurement report.

204. Acquire the service quality of the user terminal interfering with the adjacent cell.

In the embodiment of the present invention, if the interfering neighboring cell and the current cell belong to the same base station, the scheduling device can directly obtain the service quality Q4 of the user terminal in the interfering neighboring cell. If the interfering neighboring cell and the own cell belong to different base stations, the scheduling device may acquire the service quality Q4 of the user terminal in the interfering neighboring cell from the base station where the interfering neighboring cell is located through the base station controller. In the embodiment of the present invention, the base station corresponding to the interfering neighboring cell and the base station corresponding to the current cell may be located within the jurisdiction of the same base station controller. In addition, when the base station corresponding to the interfering neighboring cell and the base station corresponding to the own cell are within the jurisdiction of different base station controllers, the quality of service of the user terminal in the interfering neighboring cell can also be obtained through information exchange, for example, through the base station controller or Information exchange between base stations.

Wherein, step 203 and step 204 are irrelevant to the time sequence, that is, in this embodiment, the time sequence for executing steps 203 and 204 is not limited.

In the embodiment of the present invention, the scheduling device can acquire the service quality Q3 of the user terminal at the cell edge and the service quality Q4 of the user terminal with the same user priority or the same service type as the user terminal at the cell edge in the interfering neighboring cell.

205. Determine whether the service quality of the user terminal at the edge of the cell is lower than the service quality of the user terminal interfering with neighboring cells.

Specifically, the scheduling device may determine whether Q3 is smaller than Q4, and if so, it means that the interfering neighboring cell will cause relatively large interference to the user terminal, and step 206 is executed.

Wherein, the scheduling device can judge whether the service quality of the user terminal is lower than the service quality of the user terminal with the same user priority or the same service type in the interfering adjacent cell.

206. If yes, control to reduce the maximum transmit power of the interfering adjacent cell when scheduling the user terminal at the edge of the cell.

In the embodiment of the present invention, if the interfering neighboring cell and the current cell belong to the same base station, the scheduling device directly reduces the maximum transmit power of the interfering neighboring cell when scheduling user terminals at the edge of the cell.

In the embodiment of the present invention, when it is judged that the interfering neighboring cells in the same cell will cause greater interference to the user terminal, that is, when it is judged that the quality of service of the user terminal at the edge of the cell is lower than that of the interfering neighboring cell, the scheduling cell When the user terminal is at the edge of the cell, the maximum transmit power of the interfering neighboring cell is reduced, so that the interference of the interfering neighboring cell in the interfering neighboring cell to the user terminal can be reduced, and the service quality of the user terminal at the cell edge can be improved.

In the embodiment of the present invention, if the interfering neighboring cell and the cell where the user terminal is located are located in different base stations, the step of reducing the maximum transmit power of the interfering neighboring cell may be implemented by sending instruction information to the base station where the interfering neighboring cell is located. Wherein, the instruction information is used to instruct the base station to reduce the maximum transmission power of the interfering neighboring cell, and may carry the reduction amount of the maximum transmission power (in dB), and the reduction amount of the maximum transmission power may be based on the user terminal at the edge of the cell. To determine the quality of service. After receiving the indication information, the base station interfering with the neighboring cell lowers the service quality of the cell.

The scheduling method provided by the embodiment of the present invention has been described in detail above. In order to understand the embodiment of the present invention in more detail, specific application scenarios of the scheduling method in the embodiment of the present invention are given below.

Referring to FIG. 3, FIG. 3 is an application scenario diagram of the scheduling method provided by the embodiment of the present invention.

In the application scenario of this method embodiment, base station A in the UMTS network has established three cells, namely A1, A2, and A3, and there are five user terminals distributed under base station A, and the cells in base station A are all deployed with high-speed Downlink Packet Access (High Speed Downlink Packages Access, HSDPA). Base station B in the UMTS network has three cells, namely B1, B2, and B3. There are two user terminals distributed under base station B. The cells in base station B are all deployed with HADPA.

The embodiment of the present invention takes the scheduling process of the cell A3 under the base station A as an example to illustrate the scheduling method provided by another embodiment of the present invention.

Referring to FIG. 4, FIG. 4 is a flow chart of a scheduling method provided by another embodiment of the present invention.

The scheduling method provided by the embodiment of the present invention mainly includes:

401. Receive measurement reports sent by user terminals 1, 3, and 4, where the measurement reports carry quality parameter values and service qualities of neighboring cells.

Specifically, the scheduling device in base station A receives the measurement report reported by the user terminal. The measurement report carries the values of the quality parameters of the adjacent cells of the user terminal 1, 3, and 4. Among them, the adjacent cells of user terminal 1 include cells A1, A2, B1, and B3, the adjacent cells of user terminal 3 include cells A1, A2, B1, and B3, and the adjacent cells of user terminal 4 include cells A1, A2, and B1. and B3.

402. Determine the user terminal at the edge of the cell according to the measurement report.

In the embodiment of the present invention, if the value of the quality parameter of the adjacent cell of the user terminal 1 is smaller than the preset threshold, it means that the user terminal 1 is not at the cell edge. The value of the quality parameter of the adjacent cell A1 of the user terminal 3 is greater than the preset threshold, and the value of the quality parameter of the adjacent cell B1 of the user terminal 4 is greater than the preset threshold, then the user terminals 3 and 4 are determined to be users at the edge of the cell terminal, and cells A1 and B1 are interfering neighboring cells of user terminals 3 and 4 respectively.

Wherein, the interfering neighbor cell of user terminal 3 is cell A1, and A1 and A3 belong to the same base station. The interfering neighbor cell of user terminal 4 is cell B1, B1 and A3 belong to different base stations, and base station A and base station B belong to the jurisdiction of the same base station controller.

403. Obtain the QoS of the user terminals 3 and 4 and the QoS of the user terminals 5 and 7 having the same service type in the interfering neighboring cell, respectively.

In the embodiment of the present invention, the scheduling device can acquire the service quality of the user terminals 3 and 4 according to the measurement report. The scheduling device directly obtains the service quality of the user terminal 5 in the cell A1. The scheduling device also acquires the service quality of the user terminal 7 in the cell B1 under the base station B through the base station controller.

Wherein, user terminals 3 and 5 may be user terminals with the same service type, or user terminals with the same priority, and user terminals 3 and 5 may be collectively referred to as corresponding users. User terminals 4 and 7 may be user terminals with the same service type, or user terminals with the same priority.

404. Determine whether the service quality of the user terminal 3 is lower than the service quality of the user terminal 5, and determine whether the service quality of the user terminal 4 is lower than the service quality of the user terminal 7.

In the embodiment of the present invention, it is judged that the service quality of the user terminal 3 is lower than the service quality of the user terminal 5 interfering with the adjacent cell, and the step 405 is performed; it is judged whether the service quality of the user terminal 4 is lower than the service quality of the user terminal 7, and the step 406 is performed.

405. When scheduling user terminal 3, reduce the maximum transmit power of cell A1.

Specifically, when scheduling the user terminal 3, for example, when sending data to the user terminal 3, the scheduling device reduces the maximum transmission power of the cell A1, and the reduction amount of the maximum transmission power may be, for example, 1-5 dB.

406. When scheduling the user terminal 4, reduce the maximum transmit power of the cell B1.

Specifically, when scheduling the user terminal 4, for example, when sending data to the user terminal 4, the scheduling device reduces the maximum transmission power of the cell B1, and the reduction amount of the maximum transmission power may be, for example, 1-5 dB. It should be noted that there is no time sequence between step 405 and step 406, that is to say, this embodiment does not limit the execution order of steps 405 and 406.

The scheduling method provided by the embodiment of the present invention has been described in detail above, and the embodiment of the present invention also provides a device corresponding to the above scheduling method.

Referring to FIG. 5, FIG. 5 is a schematic structural diagram of a scheduling device provided by an embodiment of the present invention.

The scheduling device provided by the embodiment of the present invention includes:

A user terminal determining unit 510, configured to determine a user terminal at the edge of the cell in the current cell;

The quality of service acquisition unit 520 is configured to acquire the quality of service of the user terminal at the edge of the cell and the quality of service of the user terminal in the interfering neighboring cell, where the interfering neighboring cell is an adjacent cell that interferes with the user terminal at the cell edge;

A judging unit 530, configured to judge whether the quality of service of the user terminal at the edge of the cell is lower than the quality of service of the user terminal in at least one interfering neighboring cell;

The power adjustment unit 540 is configured to control reducing the maximum transmit power of at least one interfering neighboring cell when the judgment result of the judging unit 530 is yes, when scheduling the user terminal at the edge of the cell.

In the scheduling device provided by the embodiment of the present invention, the adjacent cell that causes interference to the user terminal at the cell edge is the adjacent cell of the user terminal at the cell edge whose quality parameter value is greater than a preset threshold.

The embodiment provided by the embodiment of the present invention can be used in the foregoing embodiment of the scheduling method shown in FIG. 1 . For details, refer to the description of the foregoing embodiment. The scheduling equipment provided by the embodiments of the present invention may be included in a base station, where the base station is collectively referred to, for example, it may be a base station (NodeB) in a Wideband Code Division Multiple Access (WCDMA) system, or it may be An evolved base station (Evolve NodeB, eNodeB) in a Long Term Evolution (LongTerm Evolution, LTE) system.

Further, in the scheduling device provided by the embodiment of the present invention, the quality of service acquisition unit 520 may acquire the quality of service of the user terminal at the edge of the cell and the same user priority or the same service type as the user terminal at the edge of the cell in the adjacent cell The quality of service of the user terminal.

Referring to FIG. 6, FIG. 6 is a schematic structural diagram of a user terminal determining unit in a scheduling device provided by an embodiment of the present invention.

In the scheduling device provided in the embodiment of the present invention, the user terminal determining unit 510 includes:

The measurement report receiving subunit 511 is configured to receive the measurement report sent by the user terminal, the measurement report carrying the value of the quality parameter of the neighboring cell;

The determination subunit 512 is configured to determine the user terminal as a user terminal at the cell edge in the current cell when the value of the quality parameter of the adjacent cell is greater than a preset threshold.

Further, the process for the QoS acquiring unit 520 to acquire the QoS of the user terminal at the cell edge may include:

The service quality acquisition unit 520 acquires the service quality of the cell edge user terminal according to the measurement report sent by the cell edge user terminal.

Referring to FIG. 7, FIG. 7 is a schematic structural diagram of a quality of service acquisition unit in a scheduling device provided by an embodiment of the present invention.

In the scheduling device provided in the embodiment of the present invention, the quality of service acquiring unit 520 may further include:

The first obtaining subunit 521 is configured to obtain the service rate obtained by the user terminal at the edge of the cell and the service rate obtained by the user terminal in the interfering neighboring cell; or,

The second obtaining subunit 522 is configured to obtain the ratio of the service rate obtained by the user terminal at the edge of the cell to the requested service rate and the ratio of the service rate obtained by the user terminal in the adjacent cell to the requested service rate.

Further, the power adjustment unit 540 in the scheduling device provided by the embodiment of the present invention may include:

a sending subunit, configured to send indication information to the base station where the interfering neighbor cell is located if the interfering neighboring cell and the own cell belong to different base stations, and the indication information is used to instruct the base station where the interfering neighboring cell is located to reduce the The maximum transmit power of the interfering neighboring cell mentioned above.

It should be noted that the information interaction and execution process between the units in the above scheduling device are based on the same concept as the method embodiment of the present invention, and the specific content can refer to the description in the method embodiment of the present invention, and will not be repeated here. repeat.

Finally, an embodiment of the present invention further provides a base station, and the base station includes a scheduling device. Wherein, for the detailed structure of the scheduling device in the base station, refer to the relevant descriptions of the foregoing embodiments of the scheduling device, and will not be repeated here.

The scheduling method, equipment and base station provided by the embodiments of the present invention can be used in systems with co-frequency interference, such as Global System for Mobile Communications (Global System for Mobile Communications, GSM), Code Division Multiple Access (Code Division Multiple Access, CDMA ) system, WCDMA system, Time Division Synchronization Code Division Multiple Access (Time Division-Synchronization Code Division Multiple Access, TD-SCDMA), LTE system, etc.

Those of ordinary skill in the art can understand that the realization of all or part of the processes in the methods of the above embodiments can be completed by instructing related hardware through a computer program, and the program can be stored in a computer-readable storage medium. When the program is executed , may include the processes of the embodiments of the above-mentioned methods. Wherein, the storage medium may be a magnetic disk, an optical disk, a read-only memory (Read-Only Memory, ROM) or a random access memory (Random Access Memory, RAM), etc.

The scheduling method, equipment, and base station provided by the embodiment of the present invention have been introduced in detail above. For those of ordinary skill in the art, according to the idea of the embodiment of the present invention, there will be changes in the specific implementation and application scope. The content of the description should not be construed as limiting the present invention.

Claims (14)

1. A scheduling method, characterized in that, comprising: Determining the user terminal at the edge of the cell in the cell; Acquiring the quality of service of the user terminal at the edge of the cell and the quality of service of the user terminal in an interfering adjacent cell, where the interfering adjacent cell is an adjacent cell that interferes with the user terminal at the edge of the cell; When the service quality of the user terminal at the edge of the cell is lower than the service quality of the user terminal in at least one interfering neighboring cell, when scheduling the user terminal at the cell edge, control the reduction of the maximum transmit power of the at least one interfering neighboring cell . 2. The method according to claim 1, wherein said obtaining the quality of service of the user terminal at the edge of the cell and the quality of service of the user terminal interfering with the adjacent cell comprises: The quality of service of the user terminal at the edge of the cell and the quality of service of the user terminal with the same user priority or the same service type as the user terminal at the edge of the cell in the interfering adjacent cell are acquired. 3. The method according to claim 1 or 2, wherein said obtaining the quality of service of the user terminal at the edge of the cell and the quality of service of the user terminal of the interfering adjacent cell comprises: Obtaining the service rate obtained by the user terminal at the edge of the cell and the service rate obtained by the user terminal in the interfering neighboring cell; or, Obtaining the ratio of the service rate obtained by the user terminal at the edge of the cell to the requested service rate and the ratio of the service rate obtained by the user terminal in the adjacent cell to the requested service rate. 4. The method according to claim 1 or 2, wherein the determining the user terminal at the edge of the cell in the cell comprises: If the value of the quality parameter of the interfering neighboring cell of the user terminal is greater than the preset threshold, the user terminal is determined as a user terminal at the edge of the cell. 5. The method according to claim 1 or 2, wherein the controlling to reduce the maximum transmission power of the interfering neighboring cell comprises: If the interfering neighboring cell and this cell belong to different base stations, send instruction information to the base station where the interfering neighboring cell is located, and the instruction information is used to instruct the base station where the interfering neighboring cell is located to reduce the maximum transmit power. 6. The method according to claim 1 or 2, characterized in that, The reduction amount of the maximum transmit power of the interfering neighboring cell is determined according to the service quality of the user terminal at the edge of the cell. 7. The method according to claim 1, wherein the adjacent cell causing interference to the user terminal at the cell edge is a neighboring cell of the user terminal at the cell edge whose quality parameter value is greater than a preset threshold. 8. A scheduling device, characterized in that, comprising: a user terminal determining unit, configured to determine a user terminal at the edge of the cell in the cell; A quality of service acquiring unit, configured to acquire the quality of service of the user terminal at the edge of the cell and the quality of service of the user terminal in an interfering neighboring cell, where the interfering neighboring cell is a neighboring cell that interferes with the user terminal at the cell edge Community; a judging unit, configured to judge whether the quality of service of the user terminal at the edge of the cell is lower than the quality of service of the user terminal in at least one interfering neighboring cell; A power adjustment unit, configured to control reducing the maximum transmission power of the at least one interfering neighboring cell when the judgment result of the judging unit is yes, when scheduling the user terminal at the edge of the cell. 9. The scheduling device according to claim 8, wherein the quality of service acquisition unit acquires the quality of service of the user terminal at the edge of the cell and the quality of service of the user terminal interfering with the adjacent cell, comprising: The quality of service acquiring unit acquires the quality of service of the user terminal at the edge of the cell and the quality of service of the user terminal in the adjacent cell with the same user priority or the same service type as the user terminal at the edge of the cell. 10. The scheduling device according to claim 8 or 9, wherein the user terminal determining unit comprises: The measurement report receiving subunit is used to receive the measurement report sent by the user terminal, and the measurement report carries the value of the quality parameter of the neighboring cell; The determining subunit is configured to determine the user terminal as a user terminal at the edge of the cell in the current cell if the value of the quality parameter of the adjacent cell is greater than a preset threshold. 11. The scheduling device according to claim 8 or 9, wherein the quality of service obtaining unit comprises: The first obtaining subunit is configured to obtain the service rate obtained by the user terminal at the edge of the cell and the service rate obtained by the user terminal in the interfering neighboring cell; or, The second acquisition subunit is configured to acquire the ratio of the service rate obtained by the user terminal at the edge of the cell to the requested service rate and the ratio of the service rate obtained by the user terminal in the adjacent cell to the requested service rate. 12. The scheduling device according to claim 8 or 9, wherein the power adjustment unit comprises: a sending subunit, configured to send indication information to the base station where the interfering neighbor cell is located if the interfering neighboring cell and the own cell belong to different base stations, and the indication information is used to instruct the base station where the interfering neighboring cell is located to reduce the The maximum transmit power of the interfering neighboring cell mentioned above. 13. The scheduling device according to claim 8, wherein the adjacent cell causing interference to the user terminal at the cell edge is the adjacent cell of the user terminal at the cell edge whose quality parameter value is greater than a preset threshold . 14. A base station, characterized in that the base station comprises the scheduling device according to any one of claims 8-13.

Images