WO2017071390A1

WO2017071390A1 - Interference reporting method and apparatus

Info

Publication number: WO2017071390A1
Application number: PCT/CN2016/096432
Authority: WO
Inventors: 解芳
Original assignee: 普天信息技术有限公司
Priority date: 2015-10-26
Filing date: 2016-08-23
Publication date: 2017-05-04
Also published as: CN106612520A

Abstract

Provided are an interference reporting method and apparatus. The interference reporting method comprises: when interference is detected, a base station acquiring interference source information, and reporting interference information to a central device of the base station or an adjacent base station, wherein the interference information comprises the interference source information. In the present invention, not only whether the present cell is subjected to interference is reported, but also an interference source cell of the present cell is reported, thereby facilitating rapidly and accurately discovering an interference source, reducing an interference control range, effectively adopting an interference control strategy and improving system throughputs.

Description

Method and device for interference reporting

cross reference

The present application is hereby incorporated by reference in its entirety in its entirety in its entirety in its entirety in its entirety in the the the the the the the the the the

Technical field

The present invention relates to the field of communications technologies, and in particular, to a method and apparatus for interference reporting.

Background technique

The Long Term Evolution (LTE) system adopts Orthogonal Frequency Division Multiplexing (OFDM) technology. OFDM technology uses orthogonality between frequencies as a way to distinguish users, and carries user information in mutual Orthogonal different carriers can effectively combat frequency selective fading. In addition, since the frequencies used by users in the cell are orthogonal to each other, all interferences are from other cells, that is, inter-cell interference.

5G ultra-dense network has a large number of interference sources due to dense cell distribution. Compared with traditional networks, 5G networks have less strong interference, more weak interference, lower interference ratio, and many interference sources. The interference caused by each interference source is roughly equivalent. At the same time, with the increase of the number of small stations, after the network is dense, the overlapping area of the cell increases, the interference of the neighboring area increases, the number of interfering cells increases, and the network dynamics increase, which makes the interference management more challenging.

The Inter Cell Interference Coordination (ICIC) and the Enhanced Inter-Cell Interference Coordination (eICIC) strategy in the traditional solution cannot completely solve the interference problem of dense network deployment. The traditional interference coordination method is based on the time domain and the frequency domain, and avoids interference by orthogonality in the time domain and the frequency domain. However, the resource utilization rate of the interference coordination method is low. The highly dynamic change characteristics of interference in ultra-dense networks require a more flexible interference coordination method.

Under the condition of ultra-dense network networking, the number of interference sources increases. Once the interference of neighboring cells increases, the interference will increase. It will spread rapidly, and how to conduct timely and effective control of interference becomes a primary issue.

Summary of the invention

One aspect of the present invention provides a method for interference reporting, the method comprising:

When detecting the interference, the base station acquires the interference source information, and reports the interference information to the central device or the neighboring base station of the base station, where the interference information includes the interference source information.

Optionally, before the reporting the interference information to the central device or the neighboring base station of the base station, the method further includes:

Receiving configuration information of the interference reporting period;

And configuring the interference reporting period according to the configuration information of the interference reporting period;

Correspondingly, the interference information is reported to the central device or the neighboring base station of the base station, specifically:

The interference information is reported to the central device or the neighboring base station of the base station according to the interference reporting period.

Optionally, the interference information is reported to the central device or the neighboring base station of the base station according to the interference reporting period, including:

If the interference reporting period comes, and the base station does not detect the interference, the interference information is reported to the central device or the neighboring base station of the base station, where the interference information includes: status information that the interference is not detected.

Optionally, before acquiring the interference source information, the method further includes:

Detecting the interference power of the local cell, and acquiring the value of the interference power of the local cell;

Comparing the value of the interference power of the local cell with the value of the received interference power threshold, if the value of the interference power of the local cell is greater than the value of the received interference power threshold, determining that the interference is detected.

If the interference is detected, respectively obtain the identifiers of the reference signals in the uplink signals of each neighboring cell of the cell;

The interference source information of the local cell is determined according to the identifier of the reference signal.

In another aspect, the present invention also provides an apparatus for interference reporting, the apparatus comprising:

The interference source information acquiring module is configured to acquire interference source information when the base station detects the interference;

The interference reporting module is configured to report interference information to a central device or a neighboring base station of the base station, where the interference information includes interference source information and status information that is not interfered.

Optionally, the device further includes:

The interference reporting period configuration module is configured to receive the configuration information of the interference reporting period, and configure the interference reporting period according to the configuration information of the interference reporting period;

Correspondingly, the interference reporting module is configured to report interference information to a central device or a neighboring base station of the base station according to an interference reporting period.

Optionally, the device further includes:

An interference power detection module, configured to detect interference power of the local cell, and obtain a value of interference power of the local cell;

And a comparison module, configured to compare a value of the interference power of the local cell with a value of a value of the received interference power threshold, and if the value of the interference power of the local cell is greater than a value of the received interference power threshold, determine that the interference is detected.

Optionally, the device further includes:

a reference signal acquiring module, configured to separately obtain an identifier of a reference signal in an uplink signal of each neighboring cell of the cell;

The interference source information acquiring module is configured to acquire interference source information according to the identifier of the reference signal.

The present invention also provides a base station, including the above apparatus for interference reporting.

The invention also provides an apparatus for interference reporting, comprising:

Processor, memory and bus;

Wherein the processor and the memory complete communication with each other through the bus;

The processor is configured to invoke logic instructions in the memory to perform the following method;

When the interference is detected, the interference source information is acquired, and the interference information is reported to the central device or the neighboring base station of the base station, where the interference information includes the interference source information.

The invention also proposes a computer program comprising program code for performing the following operations:

When interference is detected, the interference source information is acquired and directed to the central device or adjacent base of the base station The station reports interference information, and the interference information includes interference source information.

Embodiments of the present invention also provide a storage medium for storing the above computer program.

The invention not only reports whether the cell is interfered, but also reports the interference source cell of the cell, which is convenient for quickly and accurately detecting the interference source, narrowing the interference control range, effectively adopting the interference control strategy, and improving the system throughput.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. Obviously, the drawings in the following description It is a certain embodiment of the present invention, and other drawings can be obtained from those skilled in the art without any creative work.

1 is a flow chart of a method for interference reporting according to a first embodiment of the present invention;

2 is a flow chart of a method for interference reporting according to a second embodiment of the present invention;

3 is a flow chart of a method for interference reporting according to a third embodiment of the present invention;

4 is a schematic structural diagram of an apparatus for interference reporting according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an apparatus for interference reporting according to another embodiment of the present invention; FIG.

FIG. 6 is a logic block diagram of an interference reporting apparatus according to an embodiment of the present invention.

detailed description

The present invention will be clearly and completely described in the following with reference to the drawings in the embodiments of the present invention. Embodiments, but not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

1 is a flow chart of a method of interference reporting according to a first embodiment of the present invention. As shown in Figure 1, the method includes:

S1: When detecting the interference, the base station acquires the interference source information, and reports the interference information to the central device or the neighboring base station of the base station, where the interference information includes the interference source information.

In this embodiment, not only the local cell is reported to be interfered, but also the interference source reported in the cell is small. The area is beneficial for quickly and accurately finding the interference source, narrowing the interference control range, effectively adopting the interference control strategy, and improving the system throughput.

2 is a flowchart of a method for interference reporting according to a second embodiment of the present invention, which shows an interference reporting method in a centralized network architecture (ie, a centralized controller in a network architecture), a centralized controller or a base station itself The periodic configuration module configures an interference reporting period for the base station, and the central device of the interference reporting system is a centralized controller, and the base station reports the uplink interference information to the centralized controller according to the period of reporting the interference.

As shown in Figure 2, the method includes:

S201: Receive configuration information of an interference reporting period sent by the centralized controller or the self-period configuration module.

S202: The base station detects the interference power of the local cell, and obtains a value of the interference power of the local cell.

S203: The base station compares the value of the interference power of the local cell with the value of the value of the received interference power threshold. If the value of the interference power of the local cell is greater than the value of the received interference power threshold, it is determined that the interference is detected, and S204 is performed; Otherwise, execute S205;

S204: The base station separately obtains identifiers of reference signals in uplink signals of each neighboring cell of the local cell.

Determining, by the base station, interference source information of the local cell according to the identifier of the reference signal;

In a specific network architecture, the neighboring cell of the current cell is known, and the reference signal in the uplink signal of the neighboring cell includes a sequence configuration, and the interference source information can be determined according to the identifier of the reference signal, the interference source The information includes whether a neighboring cell of the cell is an interference source of the cell and an interference strength of the interference source;

In an actual application, the interference source cell of each RB of the local cell may also be determined according to the identifier of the reference signal. In this case, the interference source information includes an interference source cell of the local cell and a corresponding domain of each interference source cell. The number or serial number of RBs of the cell;

For example, the number of the current cell is 1, the neighboring cell of the current cell includes the cell 2, and the cell 3; the cell 1 includes 100 RBs, 20 of which are interfered by the cell 2, and 80 of the RBs are interfered by the cell 3, The interference source information of the interference reporting method in the embodiment is: the interference source cell of the cell is the cell 2 and the cell 3, wherein the cell 2 causes the 20 RBs of the cell 1 to be dry. Interference, cell 3 causes interference to 80 RBs of cell 1;

The base station reports the interference status information to the centralized controller, where the bit information is 1, and the local cell is interfered with; the base station reports the interference source information to the centralized controller, where the interference source information includes: the interference source cell of the local cell and the interference of each interference source cell strength;

S205: The base station reports the interference status information to the centralized controller, where the bit information is 0, and the current cell is not interfered.

The present embodiment provides a method for reporting interference, which not only reports whether the cell is interfered, but also reports the interference source cell of the cell, which is convenient for quickly and accurately detecting the interference source, narrowing the interference control range, effectively adopting the interference control strategy, and improving the system. Throughput.

3 is a flow chart of a method of interference reporting according to a third embodiment of the present invention. Figure 3 shows a method for reporting interference in a distributed network architecture (that is, a centralized controller is not included in the network architecture). The base station's own periodic configuration module configures an interference reporting period, and the base station reports uplink interference information to neighboring base stations according to the period of reporting interference. .

As shown in FIG. 3, the method includes:

S301: Receive configuration information of an interference reporting period sent by the periodic configuration module.

S302: The base station detects the interference power of the local cell, and obtains a value of the interference power of the local cell.

S303: The base station compares the value of the interference power of the local cell with the value of the value of the received interference power threshold. If the value of the interference power of the local cell is greater than the value of the received interference power threshold, it is determined that the interference is detected, and S304 is performed; Otherwise, execute S305;

S304: The base station separately obtains an identifier of a reference signal in an uplink signal of each neighboring cell of the local cell.

The base station reports the interference status information to the neighboring base station, the bit information is 1, and the local cell is interfered with; the base station reports the interference source information to the neighboring base station, where the interference source information includes: the interference source cell of the local cell and the interference of each interference source cell strength;

S305: The base station reports the interference status information to the neighboring base station, where the bit information is 0, and the current cell is not interfered. 4 is a schematic structural diagram of an apparatus for interference reporting according to an embodiment of the present invention. As shown in FIG. 4, the apparatus for reporting interference in the embodiment includes:

The interference source information acquiring module 41 is configured to acquire interference source information when the base station detects the interference;

The interference reporting module 42 is configured to report interference information to a central device or a neighboring base station of the base station, where the interference information includes interference source information and status information that is not interfered.

The apparatus for performing the interference reporting described in this embodiment may be used to perform the foregoing method embodiments, and the principles and technical effects thereof are similar, and details are not described herein again.

FIG. 5 is a schematic structural diagram of an apparatus for interference reporting according to another embodiment of the present invention. As shown in FIG. 5, the apparatus for reporting interference in the embodiment includes:

The interference reporting period configuration module 51 is configured to receive the configuration information of the interference reporting period, and configure the interference reporting period according to the configuration information of the interference reporting period;

The interference power detection module 52 is configured to detect the interference power of the local cell, and obtain the value of the interference power of the local cell.

The comparison module 53 is configured to compare the value of the interference power of the local cell with the value of the received interference power threshold, and if the value of the interference power of the local cell is greater than the value of the received interference power threshold, determine that the interference is detected;

The reference signal obtaining module 54 is configured to separately obtain identifiers of reference signals in uplink signals of each neighboring cell of the cell;

The interference source information obtaining module 55 is configured to acquire interference source information according to the identifier of the reference signal.

The interference reporting module 56 is configured to report interference information to the central device or the neighboring base station of the base station according to the interference reporting period, where the interference information includes interference source information and status information that is not interfered.

Further, the interference source information includes:

The interference source of the cell and the interference strength of each interference source cell;

as well as,

The location or sequence number of the RB interfered by the own cell corresponding to each interference source cell.

The embodiment of the present invention further provides a base station, including the foregoing apparatus for reporting interference.

The embodiment of the invention provides a method and a device for reporting interference, not only reporting the local cell but Whether it is interfered with and reported to the interference source cell of the cell at the same time is beneficial to quickly and accurately discover the interference source, narrow the interference control range, effectively adopt the interference control strategy, and improve the system throughput. FIG. 6 is a logic block diagram of an interference reporting apparatus according to an embodiment of the present invention. As shown in FIG. 6, the interference reporting apparatus includes:

a processor 61, a memory 62, and a bus 63;

Wherein, the processor 61 and the memory 62 complete communication with each other through the bus 63;

The processor 61 is configured to invoke logic instructions in the memory to perform the following method;

The embodiment of the invention further provides a computer program, comprising program code, wherein the program code is used to perform the following operations:

A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to the program instructions. The foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

The embodiments of the method and apparatus for interference reporting described above are merely illustrative, wherein the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be Physical units can be located in one place or distributed to multiple network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. Those of ordinary skill in the art can understand and implement without deliberate labor.

Through the description of the above embodiments, those skilled in the art can clearly understand that the various embodiments can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware. Based on this understanding, the above technical solutions essentially or tribute to the prior art The portion may be embodied in the form of a software product, which may be stored in a computer readable storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, etc., including instructions for causing a computer device (may be A personal computer, server, or network device, etc.) performs the methods described in various embodiments or portions of the embodiments.

It should be noted that the above embodiments are only used to explain the technical solutions of the embodiments of the present invention, and are not limited thereto; although the embodiments of the present invention are described in detail with reference to the foregoing embodiments, those skilled in the art It should be understood that the technical solutions described in the foregoing embodiments may be modified, or some of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. The spirit and scope of the programme.

Claims

A method for interference reporting, comprising:

When detecting the interference, the base station acquires the interference source information, and reports the interference information to the central device or the neighboring base station of the base station, where the interference information includes the interference source information.
The method of claim 1, wherein the method further comprises: before reporting interference information to a central device or a neighboring base station of the base station, the method further comprising:

Receiving configuration information of the interference reporting period;

And configuring the interference reporting period according to the configuration information of the interference reporting period;

Correspondingly, the interference information is reported to the central device or the neighboring base station of the base station, specifically:

The interference information is reported to the central device or the neighboring base station of the base station according to the interference reporting period.
The method of claim 2, wherein the reporting of the interference information to the central device or the neighboring base station of the base station according to the interference reporting period comprises:

If the interference reporting period comes, and the base station does not detect the interference, the interference information is reported to the central device or the neighboring base station of the base station, where the interference information includes: status information that the interference is not detected.
The method of claim 1, wherein the method further comprises: before acquiring the interference source information, the method further comprising:

Detecting the interference power of the local cell, and acquiring the value of the interference power of the local cell;

Comparing the value of the interference power of the local cell with the value of the received interference power threshold, if the value of the interference power of the local cell is greater than the value of the received interference power threshold, determining that the interference is detected.
The method of claim 4, wherein the method further comprises: before reporting the interference information to the central device of the base station, the method further comprising:

If the interference is detected, respectively obtain the identifiers of the reference signals in the uplink signals of each neighboring cell of the cell;

The interference source information of the local cell is determined according to the identifier of the reference signal.
A device for interference reporting, comprising:

The interference source information acquiring module is configured to acquire interference source information when the base station detects the interference;

The interference reporting module is configured to report interference information to a central device of the base station or a neighboring base station, where The interference information includes interference source information and status information that is not interfered with;

The interference source information includes:

The interference source of the cell and the interference strength of each interference source cell;

as well as,

The location or sequence number of the RB interfered by the own cell corresponding to each interference source cell.
The device for reporting interference according to claim 6, further comprising:

The interference reporting period configuration module is configured to receive the configuration information of the interference reporting period, and configure the interference reporting period according to the configuration information of the interference reporting period;

Correspondingly, the interference reporting module is configured to report interference information to a central device or a neighboring base station of the base station according to an interference reporting period.
The device for reporting interference according to claim 6, further comprising:

An interference power detection module, configured to detect interference power of the local cell, and obtain a value of interference power of the local cell;

And a comparison module, configured to compare a value of the interference power of the local cell with a value of a value of the received interference power threshold, and if the value of the interference power of the local cell is greater than a value of the received interference power threshold, determine that the interference is detected.
The device for reporting interference according to claim 6, further comprising:

a reference signal acquiring module, configured to separately obtain an identifier of a reference signal in an uplink signal of each neighboring cell of the cell;

The interference source information acquiring module is configured to acquire interference source information according to the identifier of the reference signal.
A base station, comprising the apparatus for interference reporting according to any one of claims 6-9.
A device for interference reporting, comprising:

Processor, memory and bus;

Wherein the processor and the memory complete communication with each other through the bus;

The processor is configured to invoke logic instructions in the memory to perform the following method;

When the interference is detected, the interference source information is acquired, and the interference information is reported to the central device or the neighboring base station of the base station, where the interference information includes the interference source information.
A computer program comprising program code for performing the following operations:

When the interference is detected, the interference source information is acquired, and the interference information is reported to the central device or the neighboring base station of the base station, where the interference information includes the interference source information.
A storage medium for storing the computer program of claim 12.