WO2015131518A1

WO2015131518A1 - Inter-cell interference coordination method and device and computer storage medium

Info

Publication number: WO2015131518A1
Application number: PCT/CN2014/087194
Authority: WO
Inventors: 伍丹
Original assignee: 中兴通讯股份有限公司
Priority date: 2014-03-07
Filing date: 2014-09-23
Publication date: 2015-09-11
Also published as: CN104902496B; CN104902496A

Abstract

The present invention provides an inter-cell interference coordination method and device and a computer storage medium. The method comprises: determining that a cell supports a trunking service; and sending an RBG activation bitmap of the cell to a neighboring cell of the cell through a base station to which the cell belongs, so that an LTE cell in the neighboring cell of the cell performs resource allocation according to the RBG activation bitmap and reference signal receive power (RSRP) information that is reported by a terminal in the LTE cell, so as to avoid inter-cell interference.

Description

Inter-cell interference coordination method, device and computer storage medium

Technical field

The present invention relates to the field of communications, and in particular, to a method and device for coordinating interference between cells and a computer storage medium.

Background technique

LTE is the 3GPP (The 3rd Generaton Partnership Project) long-term evolution project, and is the largest new technology development project initiated by 3GPP in the past two years. The professional cluster system based on CDMA2000 has been widely used in the past few years. When the CDMA2000 network and the LTE network coexist in the future, the cluster system based on the LTE system has become a development trend.

The common LTE system is based on the same frequency networking. Therefore, how to control the co-channel interference problem between cells is a subject worth studying. Inter-Cell Interference Coordination (ICIC) is introduced in Release 8/9 of the 3GPP LTE standard. The basic concept of ICIC is to preserve interference between cells by means of Radio Resource Management (RRM). By defining a series of processing mechanisms, including: according to the edge user (CEU, Cell Edge User), central user (CCU, Cell Center User), outer circle (OC, Outer Cell), inner circle (IC, Inter Cell), etc. Wireless resources. At the same time, the reference signal received power (RSRP, Reference Signal Reveive Power) and the corresponding Relative Narrow-band Transimit Power (RNTP) are reported by the user to calculate the comprehensive RNTP indication of the neighboring cell. Power control and resource allocation to reduce co-channel interference between cells and enhance system performance and user experience.

The cluster system is served by a group. However, the current group terminal cannot report the RSRP value of the neighboring area in time, so it is impossible to perform accurate and timely frequency band adjustment. In LTE and cluster systems In the common network and the cluster private network, if the RSRP value of the neighboring area cannot be predicted in time, the large RSRP will be caused, causing inter-cell interference of the effective signal on the resource particle (RE) containing the reference signal, thereby affecting the service quality of the terminal service.

Summary of the invention

In order to solve the above technical problem, an embodiment of the present invention provides a method, an apparatus, and a computer storage medium for inter-cell interference coordination.

In order to achieve the above object, an embodiment of the present invention provides a method for coordinating interference between cells, where the method includes: determining that a cell supports a cluster service; and activating a resource block group (RBG) of the cell by using a base station to which the cell belongs. The bitmap is sent to the neighboring cell of the cell, so that the LTE cell in the neighboring cell of the cell performs resource allocation according to the RBG activation bitmap and the RSRP information in the LTE cell to avoid inter-cell interference.

In the foregoing solution, before the sending, by the base station to which the cell belongs, the RBG activation bitmap of the cell to the neighboring cell of the cell, the method further includes: when the cell supports the cluster service, The RBG activation bitmap of the cell is converted into RNTP information of the cell;

Correspondingly, the transmitting, by the base station to which the cell belongs, the RBG activation bitmap of the cell to the neighboring cell of the cell: sending, by the base station to which the cell belongs, RNTP information of the cell to the cell Neighboring community.

In the above solution, when the cell supports the cluster service, the method further includes: when determining that the user attribute of the cluster terminal in the cell changes, according to the changed user attribute of the cluster terminal in the cell, and the The RBG activation bitmap of the cell performs resource configuration, and notifies the cluster terminal to perform power reconfiguration according to the changed user attribute.

In the above solution, the determining that the user attribute of the cluster terminal in the cell is changed is: receiving, for each cluster terminal, channel quality indication (CQI) information reported by the cluster terminal; according to the CQI The information and the pre-stored user attributes of the cluster terminal determine that the user attribute of the cluster terminal changes.

In the above solution, the determining, according to the CQI information and the pre-stored user attributes of the cluster terminal, that the user attribute of the cluster terminal changes: when the CQI value is greater than the first CQI threshold and pre-storing When the user attribute of the cluster terminal is an edge user type, determining that the user attribute of the cluster terminal changes, and adjusting the user attribute of the cluster terminal to a central user type; when the CQI value is smaller than the second CQI gate And determining, when the user attribute of the cluster terminal is a central user type, the user attribute of the cluster terminal is changed, and the user attribute of the cluster terminal is adjusted to an edge user type; A CQI threshold is greater than the second CQI threshold.

The embodiment of the present invention further provides an inter-cell interference coordination device, where the device includes: a first judging module and an interference coordination module;

The first determining module is configured to: when the cell supports the cluster service, trigger the interference coordination module; the interference coordination module is configured to: after receiving the trigger of the first determining module, pass the base station to which the cell belongs Transmitting the RBG activation bitmap of the cell to the neighboring cell of the cell, so that the LTE cell in the neighboring cell of the cell is performed according to the RBG activation bitmap and the RSRP information reported by the terminal in the LTE cell. Resource configuration to avoid interference between cells.

In the above solution, the device further includes: a conversion module, configured to: when the cell supports the cluster service, convert the RBG activation bitmap of the cell into the RNTP information of the cell; accordingly, the interference coordination module And configuring, by the base station to which the cell belongs, the RNTP information of the cell to be sent to the neighboring cell of the cell, so that the LTE cell in the neighboring cell of the cell is based on the RNTP information and the LTE cell The RSRP information reported by the terminal performs resource configuration to avoid interference between cells.

In the above solution, when the cell is a cell supporting the cluster service, the device further includes: a second determining module and a resource configuration module; wherein the second determining module is configured to determine a cluster terminal in the cell When the user attribute changes, the resource configuration module is triggered; the resource configuration module is configured to receive the trigger of the second determining module, according to the cell The changed user attribute of the intra-cluster terminal and the RBG activation bitmap of the cell perform resource configuration, and notify the cluster terminal to perform power reconfiguration according to the changed user attribute.

In the foregoing solution, the second determining module further includes: a receiving unit, configured to receive channel quality indication CQI information reported by the cluster terminal for each cluster terminal; and a determining unit configured to perform, according to the CQI information, and pre-storage The user attribute of the cluster terminal triggers the resource configuration module when it is determined that the user attribute of the cluster terminal changes.

In the foregoing solution, the determining unit includes: a first determining subunit, configured to determine, when the CQI value is greater than a first CQI threshold and the user attribute of the pre-stored cluster terminal is an edge user type, The user attribute of the cluster terminal is changed, and the user attribute of the cluster terminal is adjusted to a central user type. The second determining subunit is configured to pre-store the cluster when the CQI value is smaller than the second CQI threshold. When the user attribute of the terminal is the central user type, the user attribute of the cluster terminal is changed, and the user attribute of the cluster terminal is adjusted to an edge user type. The first CQI threshold is greater than the first Two CQI thresholds.

The embodiment of the present invention further provides a computer storage medium, the computer storage medium comprising a set of instructions, when executed, causing at least one processor to perform the inter-cell interference coordination method.

The beneficial effects of the above technical solutions of the embodiments of the present invention are as follows:

The technical solution provided by the embodiment of the present invention implements interference coordination between cells by using the RBG activation bitmap of the cell, and avoids the problem that the inter-cell interference affects the service quality of the terminal service.

DRAWINGS

In the drawings, which are not necessarily to scale, the Like reference numerals with different letter suffixes may indicate different examples of similar components. The drawings generally illustrate the various embodiments discussed herein by way of example and not limitation.

1 is a flowchart of a method for coordinating interference between cells according to Embodiment 1 of the present invention;

2 is a schematic structural diagram of an inter-cell interference coordination apparatus according to Embodiment 1 of the present invention;

3 is a flowchart of a method for coordinating interference between cells according to Embodiment 2 of the present invention;

FIG. 4 is a flowchart of a change in user attributes of a cluster terminal according to Embodiment 2 of the present invention.

detailed description

The technical problems, the technical solutions, and the advantages of the present invention will be more clearly described in the following description.

In the prior art, when inter-cell interference coordination is performed, the interference coordination is implemented by the RSRP information reported by the terminal in the coverage of the cell and the related interference information of the neighboring cell of the cell, and the cluster terminal cannot report the RSRP information, thereby causing In the various embodiments of the present invention, the interference between the cells is achieved by using the configuration information RBG of the cell to activate the interference coordination, and avoiding the problem that the cell in the cluster terminal cannot perform interference coordination. The interference between cells affects the quality of service of the terminal service.

Example 1

FIG. 1 is a flowchart of a method for coordinating interference between cells according to Embodiment 1 of the present invention. As shown, the method includes:

Step S100, determining whether the cell supports the cluster service;

In step S102, when the cell supports the cluster service, the RBG activation bitmap of the cell is sent to the neighboring cell of the cell by the base station to which the cell belongs, so that the LTE cell in the neighboring cell of the cell is based on The RBG activation bitmap and the RSRP information reported by the terminal in the LTE cell perform resource configuration to avoid inter-cell interference.

In the foregoing technical solution, first determining whether the cell supports the cluster service, and when the cell supports the cluster service, the RBG activation bitmap of the cell may be sent to the neighboring cell of the cell by using the base station to which the cell belongs, so that The LTE cell in the neighboring cell of the cell can be used according to the RBG activation bitmap and the RSRP information reported by the terminal in the coverage of the LTE cell. Source allocation, thereby avoiding interference between cells. The terminal in the coverage of the LTE cell can report the RSRP information, and the LTE cell can perform interference coordination between the cells according to the RSRP information reported by the terminal in the coverage area and the related interference information of the received neighboring cell, and the LTE cell can adjust the LTE cell. RBG activates bitmaps to achieve interference coordination between cells. When the neighboring cell does not support the trunking service, that is, the neighboring cell is an LTE cell, the related interference information of the neighboring cell may be RNTP information; and when the neighboring cell supports the clustering service, the related interference information of the neighboring cell is replaced by the RBG activated bitmap. Since each bit in the RBG activation bitmap represents a resource block group, the RBG activation bitmap indicates the resource allocation. Therefore, an LTE cell receives the RBG activation bitmap sent by the neighboring cell, and can know the resources of the neighboring cell. In the case of the allocation, the RNTP information of the neighboring cell can be obtained. Further, the LTE cell can implement interference coordination between the cells according to the resource allocation of the neighboring cell and the RSRP information reported by the terminal in the coverage.

In an embodiment, before the sending, by the base station to which the cell belongs, the RBG activation bitmap of the cell to the neighboring cell of the cell, the method may further include:

When the cell supports the cluster service, converting the RBG activation bitmap of the cell to the RNTP information of the cell;

Correspondingly, the sending, by the base station to which the cell belongs, the RBG activation bitmap of the cell to the neighboring cell of the cell is:

Sending, by the base station to which the cell belongs, the RNTP information of the cell to the neighboring cell of the cell, so that the LTE cell in the neighboring cell of the cell is reported according to the RNTP information and the terminal in the LTE cell. RSRP information is used to configure resources to avoid interference between cells.

In the foregoing technical solution, the RBG activation bitmap of the cell is first converted into the RNTP information of the cell, and then the RNTP information is sent to the neighboring cell of the cell for processing. The RBG activation bitmap is converted to RNTP information as an example:

For the bandwidth of 100M, the RBG activation bitmap corresponding to the resource block (RB) group can be represented by 25 bits, wherein each RB group corresponds to 4 RBs; and the RNTP information corresponds to each RB. Therefore, it can be represented by 100 bits, that is, 1 bit of the RBG represents 4 RBs, if the bit "0" is converted to RNTP, it is 4 bits "0000", and when the bit "1" is converted to RNTP, it is "1111". . Therefore, the conversion of the RBG activation bitmap and the RNTP information is implemented.

As the environment in the cell changes or the location of the cluster terminal in the coverage of the cell changes, the user attributes of the cluster terminal change. The cluster terminals of different attributes have different resource requirements. Therefore, the resource needs to be based on the user attributes of the cluster terminal. Configure it.

In an embodiment, when there is a cluster terminal in the cell coverage, the method may further include: determining whether a user attribute of the cluster terminal in the cell changes; when a user attribute of any cluster terminal in the cell When the change occurs, resource allocation is performed according to the changed user attribute of the cluster terminal in the cell and the RBG activation bitmap of the cell, and the cluster terminal is notified to perform power reconfiguration according to the changed user attribute.

In the foregoing technical solution, it is first determined whether the user attribute of the cluster terminal in the cell has changed. When the user attribute of any cluster terminal changes, the resource configuration needs to be performed according to the changed user attribute of the cluster terminal and the RBG activation bitmap. . In the RBG activation bitmap, 1 bit indicates an RBG. When the bit is 1, it indicates that the RBG is an OC band. When the bit is 0, it indicates that the RBG is an IC band. When a cluster terminal is an edge user terminal, It needs to be assigned an RBG frequency resource with a value of 1, otherwise it will affect the quality of service of the cluster terminal. When the cluster terminal is a central user terminal, it can be assigned an RBG frequency resource with a value of 1 or a value of 0. Therefore, according to the current RBG activation bitmap of the cell and the received user attribute of the cluster terminal in its coverage, resource configuration may be performed; and the cluster terminal is notified to perform power reconfiguration according to the changed user attribute, so that Non-clustered terminals within the coverage have a high quality of service.

In an embodiment, the determining whether the user attribute of the cluster terminal in the cell changes may be: receiving, for each cluster terminal, CQI information reported by the cluster terminal; according to the CQI information and pre-storing The user attribute of the cluster terminal determines whether the user attribute of the cluster terminal changes.

In the above technical solution, the user attribute of the cluster terminal is stored in advance, and it is determined whether the user attribute of the cluster terminal has changed according to the CQI information reported by the cluster terminal and the user attribute of the cluster terminal stored in advance.

In an embodiment, the determining, according to the CQI information, the attribute of the cluster terminal may be specifically: when the CQI value is greater than a first CQI threshold, and pre-stored user attributes of the cluster terminal are edge users. When the type is determined, the user attribute of the cluster terminal is changed to be a central user type; when the CQI value is less than the second CQI threshold and the user attribute of the pre-stored cluster terminal is the central user type, determining The user attribute of the cluster terminal is changed to be an edge user type, where the first CQI threshold is greater than the second CQI threshold.

In the foregoing technical solution, the user attribute of the cluster terminal is pre-stored and the CQI threshold value, the first CQI threshold value and the second CQI threshold value are set, and the user attribute pre-stored by the cluster terminal is an edge user type. When the CQI value of the cluster terminal is greater than the first CQI threshold, the user attribute of the cluster terminal needs to be changed to the central user type, and the user attribute pre-stored by the cluster terminal is the central user type, and the CQI value of the cluster terminal is smaller than When the second CQI threshold is used, it may be determined that the cluster terminal needs to be changed to the edge user type, where the first CQI threshold is greater than the second CQI threshold, and in other cases, the user attribute of the cluster terminal is not adjusted.

2 is a schematic structural diagram of an inter-cell interference coordination apparatus according to Embodiment 1 of the present invention. As shown in the figure, the inter-cell interference coordination apparatus 20 includes: a first judging module 21 and an interference coordination module 22;

The first determining module 21 is configured to trigger the interference coordination module 22 when the cell supports the cluster service;

The interference coordination module 22 is configured to: after receiving the trigger of the first determining module 21, send, by using a base station to which the cell belongs, an RBG activation bitmap of the cell to a neighboring cell of the cell, so that the The LTE cell in the neighboring cell of the cell according to the RBG activation bitmap and the The RSRP information reported by the terminal in the LTE cell performs resource configuration to avoid interference between cells.

In an embodiment, the apparatus may further include: a conversion module configured to convert the RBG activation bitmap of the cell into RNTP information of the cell when the cell supports the cluster service;

Correspondingly, the interference coordination module 22 is configured to send the RNTP information of the cell to the neighboring cell of the cell by using the base station to which the cell belongs, so that the LTE cell in the neighboring cell of the cell is according to the RNTP. The information and the RSRP information reported by the terminal in the LTE cell are configured to avoid interference between cells.

In an embodiment, when the cell is a cell that supports the cluster service, the inter-cell interference coordination device further includes: a second determining module and a resource configuration module;

The second determining module is configured to trigger the resource configuration module when determining that a user attribute of the cluster terminal in the cell changes;

The resource configuration module is configured to perform resource configuration according to the changed user attribute of the cluster terminal in the cell and the RBG activation bitmap of the cell after receiving the trigger of the second determining module.

In an embodiment, the second determining module includes: a receiving unit configured to receive CQI information reported by the cluster terminal for each cluster terminal; and a determining unit configured to use the CQI information and the pre-stored The resource configuration module is triggered when the user attribute of the cluster terminal is changed, and the user attribute of the cluster terminal is changed.

In an embodiment, the determining unit includes: a first determining subunit, configured to: when the CQI value is greater than the first CQI threshold and the pre-stored user attribute of the cluster terminal is an edge user type, The user attribute of the cluster terminal is changed, and the user attribute of the cluster terminal is adjusted to a central user type; and the second determining subunit is configured to: when the CQI value is smaller than the second CQI threshold and pre-stored When the user attribute of the cluster terminal is the central user type, it is determined that the user attribute of the cluster terminal changes, and the user of the cluster terminal is The adjustment is an edge user type; wherein the first CQI threshold is greater than the second CQI threshold.

In a practical application, the first determining module and the converting module may be a central processing unit (CPU), a digital signal processor (DSP), or a digital signal processor (DSP) in the interference coordination device between the cells. The Field-Programmable Gate Array (FPGA) is implemented; the interference coordination module may be implemented by a CPU, DSP or FPGA in the inter-cell interference coordination device in combination with the transceiver.

Example 2

FIG. 3 is a flowchart of a method for coordinating interference between cells according to Embodiment 2 of the present invention. As shown in the figure, the method includes:

Step S300, configuring an ICIC mode of the cell to be enabled;

Here, when the ICIC mode of the cell is in the enable mode, the cell can be regarded as having the interference coordination switch, that is, the interference coordination can be performed. When the ICIC mode of the cell is disabled, the cell can be regarded as the cell off interference. Coordinated switches, ie no interference coordination.

Step S302, determining the type of the cell, according to the type of the cell, respectively proceeds to step S304 or step S308;

Here, when the cell does not support the cluster service, the cell is an LTE cell. When the cell supports only the cluster service, the cell is a cluster cell. When the cell supports both the LTE service and the cluster service, the cell is a hybrid cell.

Step S304, the cell is an LTE cell, determining whether the RNTP adjustment timer of the cell arrives, and when the timer arrives, the process proceeds to step S306;

Here, the cell is configured with an RNTP adjustment timer, which is configured to perform inter-cell interference coordination periodically. That is, when the ICIC mode of the cell is in the enable mode, inter-cell interference coordination needs to be performed at intervals.

Step S306, according to the interference related information sent by the neighboring cell received by the LTE cell Inter-cell interference coordination is performed on the RSRP information reported by the terminal in the coverage of the LTE cell, and proceeds to step S304 to wait for the arrival time of the next RNTP adjustment timer again;

Step S308, when the cell is a cluster cell or a hybrid cell, the RBG activation bitmap of the cell is converted into the RNTP value of the cell.

Step S310, determining whether the RNTP adjustment timer of the cell arrives, and when the timer arrives, the process proceeds to step S312;

Here, the cell is configured with an RNTP adjustment timer, which is configured to periodically send the RNTP information of the cell to its neighboring cell, so that the LTE cell in its neighboring cell performs interference coordination between cells.

Step S312, the RNTP value of the cell is sent to the neighboring cell of the cell through the RRM module, so that the LTE cell in the neighboring cell of the cell can perform interference coordination between cells, and proceeds to step S310 to wait for the next RNTP adjustment timer. Arrival time.

4 is a flowchart of a change in user attributes of a cluster terminal according to Embodiment 2 of the present invention. As shown in the figure, the process includes:

Step S400, configuring a first CQI threshold CQI1 and a second CQI threshold CQI2, and CQI1 is greater than CQI2;

Here, for example, CQI1 is set to 11 and CQI2 is 9.

Step S402, storing a user attribute type of the cluster terminal in the coverage of the cell;

Here, the user attribute type of the cluster terminal may be a central user type or an edge user type.

Step S404, receiving a CQI value reported by the cluster terminal in the coverage area of the cell;

Step S406, whether the current user attribute of the cluster terminal is an edge user and the CQI value is greater than CQI1, if yes, proceed to step S408, otherwise proceed to step S410;

Step S408, adjusting the user attribute of the cluster terminal as a central user, and storing, proceeds to step S416;

Step S410, whether the current user attribute of the cluster terminal is a central user and the CQI value is less than CQI2, if yes, proceeds to step S412, otherwise proceeds to step S414;

Step S412, adjusting the user attribute of the cluster terminal as an edge user, and storing, proceeds to step S416;

Step S414, maintaining the current user attribute;

Step S416: Perform resource configuration according to the changed user attribute of the cluster terminal in the cell and the RBG activation bitmap of the cell, and notify the cluster terminal to perform power reconfiguration through the RRM module.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded into a computer or other programmable data processing device Having a series of operational steps performed on a computer or other programmable device to produce computer-implemented processing such that instructions executed on a computer or other programmable device are provided for implementing one or more processes in a flowchart and/or Or block diagram the steps of a function specified in a box or multiple boxes.

The above is a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It should be considered as the scope of protection of the present invention.

Claims

An inter-cell interference coordination method, the method comprising:

Determining the cell support cluster service;

Transmitting, by the base station to which the cell belongs, the resource block group RBG activation bitmap of the cell to the neighboring cell of the cell, so that the LTE cell in the neighboring cell of the cell is activated according to the RBG and the The reference signal reported by the terminal in the LTE cell receives the power RSRP information to perform resource configuration to avoid interference between cells.
The method of claim 1, wherein the method further comprises: before the transmitting, by the base station to which the cell belongs, the RBG activation bitmap of the cell to the neighboring cell of the cell, the method further includes:

When the cell supports the cluster service, converting the RBG activation bitmap of the cell to the relative narrowband transmit power RNTP information of the cell;

Correspondingly, the neighboring cell that sends the RBG activation bitmap of the cell to the cell by using the cell to which the cell belongs is:

Sending RNTP information of the cell to a neighboring cell of the cell by using a base station to which the cell belongs.
The method of claim 1, wherein when the cell supports the cluster service, the method further includes:

When the user attribute of the cluster terminal in the cell is changed, the resource configuration is performed according to the changed user attribute of the cluster terminal in the cell and the RBG activation bitmap of the cell, and the cluster terminal is notified according to the change. User attributes for power reconfiguration.
The method of claim 3, wherein said determining a user attribute of a cluster terminal within said cell changes to:

Receiving channel quality indication CQI information reported by the cluster terminal for each cluster terminal;

Determining, according to the CQI information and the pre-stored user attributes of the cluster terminal, that the user attribute of the cluster terminal changes.
The method of claim 4, wherein the determining, according to the CQI information and the pre-stored user attributes of the cluster terminal, that the user attribute of the cluster terminal changes is:

When the CQI value is greater than the first CQI threshold and the user attribute of the pre-stored cluster terminal is an edge user type, determining that the user attribute of the cluster terminal changes, and adjusting the user attribute of the cluster terminal Central user type;

When the CQI value is smaller than the second CQI threshold and the pre-stored user attribute of the cluster terminal is the central user type, determining that the user attribute of the cluster terminal changes, and adjusting the user attribute of the cluster terminal For edge user types;

The first CQI threshold is greater than the second CQI threshold.
An inter-cell interference coordination device, where the device includes: a first judging module and an interference coordination module; wherein

The first determining module is configured to: when the cell supports the cluster service, trigger the interference coordination module;

The interference coordination module is configured to: after receiving the trigger of the first determining module, send, by using a base station to which the cell belongs, a resource block group RBG activation bitmap of the cell to a neighboring cell of the cell, so that The LTE cell in the neighboring cell of the cell performs resource configuration according to the RBG activation bitmap and the reference signal received power RSRP information reported by the terminal in the LTE cell to avoid inter-cell interference.
The apparatus of claim 6 wherein said apparatus further comprises:

a conversion module, configured to convert, when the cell supports the cluster service, the RBG activation bitmap of the cell to the relative narrowband transmit power RNTP information of the cell;

Correspondingly, the interference coordination module is configured to send the RNTP information of the cell to the neighboring cell of the cell by using the base station to which the cell belongs, so that the LTE cell in the neighboring cell of the cell is according to the RNTP The information and the RSRP information reported by the terminal in the LTE cell are configured to avoid interference between cells.
The device of claim 6, wherein when the cell is a cell supporting a cluster service, the device further includes: a second determining module and a resource configuration module;

The second determining module is configured to trigger the resource configuration module when determining that a user attribute of the cluster terminal in the cell changes;

The resource configuration module is configured to: after receiving the trigger of the second determining module, perform resource configuration according to the changed user attribute of the cluster terminal in the cell and the RBG activation bitmap of the cell, and notify the cluster The terminal performs power reconfiguration according to the changed user attribute.
The apparatus of claim 8 wherein said second determining module comprises:

a receiving unit, configured to receive, for each cluster terminal, channel quality indication CQI information reported by the cluster terminal;

The determining unit is configured to trigger the resource configuration module when determining that the user attribute of the cluster terminal changes according to the CQI information and the pre-stored user attribute of the cluster terminal.
The apparatus of claim 9, wherein the determining unit comprises:

Determining, by the first determining subunit, that when the CQI value is greater than the first CQI threshold and the user attribute of the pre-stored cluster terminal is an edge user type, determining that the user attribute of the cluster terminal changes, and The user attribute of the cluster terminal is adjusted to a central user type;

a second determining subunit, configured to: when the CQI value is less than the second CQI threshold and the pre-stored user attribute of the cluster terminal is a central user type, determining that the user attribute of the cluster terminal changes, and The user attribute of the cluster terminal is adjusted to an edge user type;

The first CQI threshold is greater than the second CQI threshold.
A computer storage medium comprising a set of instructions that, when executed, cause at least one processor to perform the inter-cell interference coordination method of any one of claims 1 to 5.