CN111800808A

CN111800808A - Method and device for detecting far-end interference source

Info

Publication number: CN111800808A
Application number: CN201910279388.6A
Authority: CN
Inventors: 陈先国
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2019-04-09
Filing date: 2019-04-09
Publication date: 2020-10-20
Anticipated expiration: 2039-04-09
Also published as: CN111800808B

Abstract

The application discloses a method and a device for detecting a far-end interference source. The method for detecting the far-end interference source comprises the following steps: determining a first base station by operation, maintenance and management (OAM) equipment; the first base station is any one of all base stations affected by far-end interference, and the base stations affected by the far-end interference comprise interfered stations and/or interference applying stations; the OAM configures a first reference signal configuration information ID for a first base station; the first reference signal configuration information ID is used to determine a first reference signal sequence and time-frequency information of the first reference signal sequence, so that the first base station transmits the first reference signal sequence on the time-frequency information of the first reference signal sequence based on the first reference signal configuration information ID under the condition that the first reference signal sequence is transmitted.

Description

Method and device for detecting far-end interference source

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for detecting a far-end interference source.

Background

Under certain meteorological conditions, a layer with inverse temperature or water vapor sharply reduced along with height exists in the atmospheric troposphere, electric waves in the layer form super-refraction propagation, propagation loss is small, ultra-long distance propagation can be achieved, most of electric wave radiation is limited in the layer and is similar to the propagation in a waveguide, and the phenomenon is called atmospheric waveguide propagation of electromagnetic waves. When atmospheric waveguide occurs in a Time Division Duplex (TDD) wireless network, a downlink signal of a far-end base station still has high strength after being transmitted over an ultra-long distance of tens of kilometers or hundreds of kilometers, and a signal propagation delay exceeds the length of a Guard Period (GP) of an uplink Time slot and falls into an uplink subframe of a near-end base station, so that severe uplink interference is caused, which is called far-end interference or atmospheric waveguide interference.

In the prior art, a method for identifying a far-end interference base station based on a reference signal sequence needs to send a longer characteristic sequence, the identification method is complex, the detection period is long, real-time detection cannot be performed, and timeliness and accuracy of interference avoidance are affected.

Disclosure of Invention

The embodiment of the application provides a method and a device for detecting a far-end interference source, which are used for reducing the complexity of detection of the far-end interference and improving the efficiency of determining the far-end interference source.

The embodiment of the invention provides a method for detecting a far-end interference source, which comprises the following steps:

an Operation, Maintenance and management (OAM) device determines a first base station; the first base station is any one of all base stations affected by far-end interference, and the base stations affected by the far-end interference comprise interfered stations and/or interference applying stations;

the OAM configures a first reference signal configuration information ID for a first base station; the first reference signal configuration information Identifier (ID) is configured to determine a first reference signal sequence and time-frequency information of the first reference signal sequence, so that the first base station sends the first reference signal sequence on the time-frequency information of the first reference signal sequence based on the first reference signal configuration information ID under a condition that the first reference signal sequence is sent.

In one possible implementation, the method further includes:

the OAM receives a second reference signal configuration information ID sent by a second base station; the second reference signal configuration information ID is the first reference signal sequence and time-frequency information thereof sent by the first base station, which are detected by the second base station based on the OAM configuration information; and is determined according to the detected first reference signal sequence and the time-frequency information thereof; the second reference signal configuration information ID is the reference signal configuration information ID of the interference station;

and the OAM determines the base station ID of the interference station based on the second reference signal configuration information ID according to the mapping relation between the preset reference signal configuration information ID and the base station ID, so that the remote interference source is accurately positioned.

One possible implementation manner, where the OAM configures a first reference signal configuration information ID for a first base station, includes:

the OAM determines a plurality of reference signal sequences in the area range according to the area range of the possible far-end interference where the base station is located;

the OAM determining a first reference signal sequence ID from the plurality of reference signal sequences;

and the OAM determines the first reference signal configuration information ID according to the first reference signal sequence ID and the time-frequency information of the first reference signal sequence.

In one possible implementation manner, the time-frequency information of the first reference signal sequence and the second reference signal sequence respectively includes but is not limited to:

radio frame number, time slot configuration information, and frequency domain resource configuration information.

In a possible implementation manner, the mapping relationship between the reference signal configuration information ID and the base station ID is a one-to-many mapping or a one-to-one mapping, and the mapping relationship is configured uniformly by OAM.

In one possible implementation, the method further includes:

the OAM configures a transmission period of the first reference signal sequence for the first base station.

if the sending period of the reference signal sequence configured by the OAM is less than or equal to a system frame period, the radio frame number of the first reference signal sequence determined by the first reference signal configuration information ID is a system frame number;

if the sending period of the first reference signal sequence configured by the OAM is greater than the system frame period, the radio frame number of the first reference signal sequence determined by the first reference signal configuration information ID is an expanded radio frame number; the expanded radio frame number is the radio frame number of which the maximum value of the frame number is greater than the maximum value of the system frame number.

a first base station acquires a first reference configuration information ID configured by OAM, wherein the first reference configuration information ID is used for determining a first reference signal sequence and time-frequency information of the first reference signal sequence;

and if the first base station determines that the condition for sending the first reference signal sequence is met, sending the first reference signal sequence on the time-frequency information of the first reference signal sequence.

the second base station detects a second reference signal sequence and time-frequency information thereof;

the second base station determines a second reference configuration information ID according to the second reference signal sequence and the time-frequency information of the second reference signal sequence;

and the second base station sends the second reference configuration information ID to OAM, so that the OAM determines the base station ID of the interference station corresponding to the second reference configuration information ID according to the corresponding relation between the reference configuration information ID and the base station ID.

The embodiment of the invention provides a detection device of a far-end interference source, which comprises:

a processing unit for determining a first base station; the first base station is any one of all base stations affected by far-end interference, and the base stations affected by the far-end interference comprise interfered stations and/or interference applying stations;

a transceiver unit, configured to configure a first reference signal configuration information ID for a first base station; the first reference signal configuration information ID is used to determine a first reference signal sequence and time-frequency information of the first reference signal sequence and the first reference signal sequence; therefore, the first base station sends the first reference signal sequence on the time-frequency resource of the first reference signal sequence based on the first reference signal configuration information ID under the condition that the first reference signal sequence is sent.

a transceiver unit, configured to acquire a first reference configuration information ID configured by OAM, where the first reference configuration information ID is used to determine a first reference signal sequence and time-frequency information of the first reference signal sequence;

and the processing unit is used for sending the first reference signal sequence on the time-frequency information of the first reference signal sequence when the condition of sending the first reference signal sequence is determined to be met.

a processing unit for detecting a second reference signal sequence; determining a second reference configuration information ID according to the second reference signal sequence and the time-frequency information of the second reference signal sequence;

and the transceiver unit is used for sending the second reference configuration information ID to the OAM so that the OAM determines the base station ID of the interference station corresponding to the second reference configuration information ID according to the corresponding relation between the reference configuration information ID and the base station ID.

Another embodiment of the present application provides a computing device, which includes a memory and a processor, wherein the memory is used for storing program instructions, and the processor is used for calling the program instructions stored in the memory and executing any one of the above methods according to the obtained program.

Another embodiment of the present application provides a computer storage medium having stored thereon computer-executable instructions for causing a computer to perform any one of the methods described above.

In the embodiment of the invention, the first reference signal sequence sent by the first base station and the time-frequency information for sending the first reference signal sequence are completely determined by OAM, so that the OAM can conveniently and uniformly control the behavior of sending the first reference signal sequence by the first base station, and the configuration information ID of the first reference signal can be configured according to needs, thereby avoiding the problems that the base station needs to carry out a large amount of blind detection on each symbol and each characteristic sequence in a detection window in the process of determining the base station ID of an interference source due to the binding of the reference signal sequence and the base station ID, the complexity of a detection algorithm is overhigh, and the resource consumption of the base station is very high.

Drawings

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

Fig. 1 is a schematic flowchart of a method for detecting a remote interference source according to an embodiment of the present disclosure;

fig. 2 is a schematic flowchart of a method for detecting a remote interference source according to an embodiment of the present disclosure;

fig. 3 is a schematic flowchart of a method for detecting a remote interference source according to an embodiment of the present disclosure;

fig. 4a is a schematic structural diagram of a detection apparatus for a remote interference source provided at a victim station side according to an embodiment of the present application;

fig. 4b is a schematic structural diagram of a detection apparatus for a remote interference source provided at a victim station side according to an embodiment of the present application;

fig. 5a is a schematic structural diagram of a detection apparatus for a remote interference source provided at a victim station side according to an embodiment of the present application;

fig. 5b is a schematic structural diagram of a detection apparatus of a remote interference source provided at a victim station side according to an embodiment of the present application;

fig. 6a is a schematic structural diagram of a detection apparatus for a remote interference source provided at a site of an interfering station according to an embodiment of the present application;

fig. 6b is a schematic structural diagram of a detection apparatus for a far-end interference source provided at a site side of a perturbation station according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical scheme provided by the embodiment of the application can be suitable for various systems, particularly 5G systems. For example, suitable systems may be global system for mobile communications (GSM) systems, Code Division Multiple Access (CDMA) systems, Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS) systems, Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD) systems, Universal Mobile Telecommunications System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) systems, 5G systems, and 5G radio Access (3 GPP) systems. These various systems include terminal devices and network devices.

The terminal device referred to in the embodiments of the present application may refer to a device providing voice and/or data connectivity to a user, a handheld device having a wireless connection function, or other processing device connected to a wireless modem. The names of the terminal devices may also be different in different systems, for example, in a 5G system, the terminal devices may be referred to as User Equipments (UEs). Wireless terminal devices, which may be mobile terminal devices such as mobile telephones (or "cellular" telephones) and computers with mobile terminal devices, e.g., mobile devices that may be portable, pocket, hand-held, computer-included, or vehicle-mounted, communicate with one or more core networks via the RAN. Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and the like. The wireless terminal device may also be referred to as a system, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile), a remote station (remote station), an access point (access point), a remote terminal device (remote terminal), an access terminal device (access terminal), a user terminal device (user terminal), a user agent (user agent), and a user device (user device), which are not limited in this embodiment.

The network device according to the embodiment of the present application may be a base station, and the base station may include a plurality of cells. A base station may also be referred to as an access point, or a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or by other names, depending on the particular application. The network device may be configured to interconvert received air frames with Internet Protocol (IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiment of the present application may be a Base Transceiver Station (BTS) in a global system for mobile communications (GSM) or a Code Division Multiple Access (CDMA), may also be a network device (NodeB) in a Wideband Code Division Multiple Access (WCDMA), may also be an evolved network device (eNB or e-NodeB) in a long term evolution (long term evolution, LTE) system, a 5G base station in a 5G network architecture (next generation system), or may also be a home evolved node B (HeNB), a relay node (HeNB), a home base station (femto), a pico base station (pico), and the like, which are not limited in the embodiments of the present application.

Various embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the display sequence of the embodiment of the present application only represents the sequence of the embodiment, and does not represent the merits of the technical solutions provided by the embodiments.

Far-end interference widely exists in a TDD (Time Division duplex) wireless network, and once the far-end interference occurs, the far-end interference has a great influence on the performance of the existing network, because the prior art has the following problems:

the base station detects the far-end interference by sending a reference signal sequence, because the detectable characteristic information ID for identifying the interference source is fixedly bound with the base station ID, the interference source base station ID needs to be detected, the base station needs to carry out a large amount of blind detection on each symbol and each characteristic sequence in a detection window, the complexity of a detection algorithm is overhigh, and the resource consumption of base station equipment is very high; the base station needs to detect and identify all far-end interference sources, so that the detection period is too long, real-time detection cannot be realized, and the timeliness of interference avoidance is influenced; the complexity of the detection algorithm is extremely high, the detection period is very long, and the real-time performance of interference avoidance is poor due to the long detection period. In addition, the detectable characteristic information ID for identifying the interference source is fixedly bound to the base station ID, so that the detection method has poor flexibility, and it is difficult to uniformly implement the subsequent processing of the interference source.

Based on the above problems in the prior art, the present application provides a method and an apparatus for detecting a far-end interference source, and the following embodiments are specifically implemented.

And transmitting the reference signal sequence.

As shown in fig. 1, an embodiment of the present invention provides a method for detecting a far-end interference source, where the method includes:

step 101: the OAM determines a first base station;

the first base station is any one of all base stations affected by far-end interference, and the base stations affected by the far-end interference comprise interfered stations and/or interference applying stations;

step 102: the OAM configures a first reference signal configuration information ID for the first base station;

the first reference signal configuration information ID is used to determine a first reference signal sequence and time-frequency information of the first reference signal sequence. Therefore, the first base station sends the first reference signal sequence on the time-frequency information of the first reference signal sequence based on the first reference signal configuration information ID under the condition that the first reference signal sequence is sent.

In particular implementations, the reference signal sequence may be a spread spectrum Gold sequence, a Zadoff-Chu (ZC) sequence, or other pseudo-random sequence.

In a possible implementation manner, the time-frequency information of the first reference signal sequence may include a radio frame number, timeslot configuration information, and frequency domain resource configuration information.

The reference signal sequence sent by the base station and the wireless frame, time slot, symbol and period in which the reference signal sequence is sent can be determined by OAM, so that the OAM can conveniently and uniformly control the behavior of the base station for sending the reference signal sequence. The sending period of the reference signal sequence can be uniformly configured by OAM, and the complexity of a detection algorithm can be obviously reduced, so that the real-time performance of remote interference detection can be effectively ensured.

In a specific implementation process, the radio frame number, the time slot and the time slot format configuration information where the base station sends the reference signal sequence may be determined by the reference signal configuration information ID, and the reference signal configuration information ID is allocated to each base station by OAM. The reference signal configuration information ID is described as follows:

the reference signal configuration information ID contains all information required by the base station to transmit the reference signal, including: the reference signal configuration information ID is an integer formed by combining each bit segment of the information.

Wherein the reference signal sequence ID is used to uniquely identify the reference signal sequence. For example, if the total number of reference signal sequences is 64, the total number of radio frames in a system frame period is 1024, and the number of downlink/uplink switching periods in one radio frame is 4, that is, there are 4 slot formats for transmitting reference signal sequences, the bit length that these information can construct is: if 6+10+2+2 is 20, the reference signal configuration information ID is a 20-bit long number.

In a possible implementation manner, the correspondence between the reference signal configuration information ID and the base station ID is a one-to-many mapping or a one-to-one mapping. The corresponding relation is formulated and managed by OAM, thus the interference source and the base station are not fixed binding relation but can be defined and managed by OAM, and the method is very flexible.

In step 102, after the reference signal configuration information IDs are collectively allocated by the OAM, the configured reference signal configuration information IDs are allocated to the respective base stations.

One possible implementation manner may be that a Self-Organizing Network (SON) is automatically allocated to each base station, or the first reference signal configuration information ID is sent to the base station by using dynamic signaling.

Furthermore, in order to ensure that different base stations transmit reference signal sequences on different wireless frames and avoid higher false detection rate caused by non-aligned superposition of the same reference signals on the same symbol of a receiving end, OAM can allocate fewer reference signal sequences to the base stations on the premise of ensuring the positioning accuracy of an interference source according to the scale range and the region condition of the occurrence of far-end interference, thereby significantly reducing the complexity of a base station detection algorithm and improving the real-time performance of far-end interference detection.

Specifically, the method may include:

firstly, determining a plurality of reference signal sequences in an area range according to the area range of possible far-end interference where a base station is located by OAM;

secondly, determining a first reference signal sequence from a plurality of reference signal sequences by OAM;

and thirdly, determining the first reference signal configuration information ID according to the first reference signal sequence and the time frequency information of the first reference signal sequence by the OAM.

According to a possible implementation manner, the OAM may be configured such that the base station sends a fixed reference signal sequence, so that the base station does not need to perform blind detection on multiple reference signal sequences, and the complexity of a detection algorithm may be greatly reduced.

In order to ensure the positioning accuracy of the interference source, one-to-one mapping between the reference signal configuration information ID and the base station may be required, but the bit number of the reference signal configuration information ID is relatively long, and the increase of the timeslot number and timeslot format configuration for transmitting the reference signal is limited, so the number of reference signal sequences needs to be increased, which may greatly increase the complexity of the detection algorithm, and the technical scheme may significantly reduce the complexity of the detection algorithm, and the method is as follows:

1) if the area range of the far-end interference is small (the occurrence scale of the far-end interference is mainly judged according to the area size of a fragmented cell affected by the far-end interference), and the probability of non-aligned superposition of the same reference signal sequence on the same symbol of a receiving end is low, OAM only needs to distribute a small number of reference signal sequences to each base station, so that the base station does not need to blindly detect excessive reference signal sequences, and the complexity of a detection algorithm is remarkably reduced.

In a specific implementation process, which reference signal sequence is used by each base station can be determined by reference signal configuration information ID, and reference signal sequence identification can be configured for the reference signal sequence in the reference signal configuration information ID; OAM controls the distribution of the reference signal sequence through distributing the reference signal sequence identification; the specific method can comprise the following steps: the OAM allocates a uniquely identified sequence identifier to each reference signal sequence, and when the OAM configures the reference signal sequence for the base station, the reference signal sequence identifier can be obtained by mapping a fixed bit segment of the reference signal configuration information ID.

2) If the area range where the far-end interference occurs is large, the maximum value of the reference signal configuration information ID is generally much larger than the system frame period value, and the probability that the same reference signal is superimposed on the same symbol of the receiving end is high, which may cause a high false detection rate or a high false detection rate, so OAM needs to configure multiple reference signal sequences for all base stations to use. At this time, in order to reduce the complexity of the detection algorithm, OAM may allocate a smaller number of reference signal sequences to each base station based on the network region information where the far-end interference occurs.

Because the remote interference propagation distance is a limited distance, each base station only needs to detect the reference signal sequence sent by the base station within a specified distance (for example, within 500 km), and there is no need to detect a larger range or even the whole network, so although the total number of the reference signal sequences can be more in the area range where the interference occurs, the OAM can allocate a smaller number of reference signal sequences to each base station based on the network region information where the remote interference occurs, thereby significantly reducing the complexity of the detection algorithm.

For example, if the total number of the selected reference signals is 64, considering that only part of the area has far-end interference, only 1 to 4 reference signal sequences may be needed for each province actually allocated to the area having far-end interference, the number of the reference signal sequences allocated to each base station may be at most 2 to 4, the complexity of blind detection is not high, but it can be ensured that the bit number of the reference signal configuration information ID meets the requirement, so that the reference signal configuration information ID and the base stations can be mapped one by one, and the positioning accuracy of the interference source is ensured.

In addition, the period for the base station to transmit the reference signal may also be determined by OAM configuration, and specifically, the OAM determines the transmission period of the first reference signal sequence and transmits it to the base station.

In a possible configuration mode, if the OAM determines that the sending period of the first reference signal sequence is the period of a system frame, the OAM configures the radio frame number as the system frame number; i.e. the base station transmits the reference signal only once within the system frame period.

Furthermore, on the premise of ensuring that the bit number of the reference signal configuration information ID is not changed, the wireless frame number is expanded to an expanded wireless frame number with a larger range, so that the number of reference signal sequences can be reduced, and the complexity of a detection algorithm is reduced.

Specifically, if the OAM determines that the sending period of the first reference signal sequence is greater than the period of the system frame, the radio frame number is configured as an extended radio frame number; the expanded radio frame number has a mapping relation with the system frame number.

In one possible implementation, the expanded radio frame number is a radio frame number whose maximum frame number is greater than the maximum system frame number.

In the specific implementation process, when the base station sends the reference signal sequence, the base station needs to map the expanded radio frame number as the actual radio frame number, and the maximum frame number value is greater than the maximum value of the conventional system frame number, so that the number of the reference signal sequence can be reduced on the premise of ensuring that the bit number of the reference signal configuration information ID is unchanged, and the complexity of the detection algorithm is reduced.

2. Detection of far-end interference.

In the time domain, the base station blindly detects the reference signal sequence on all uplink symbols in the detection window; blindly detecting a reference signal sequence on all frequency subbands in a full bandwidth range in a frequency domain; on the code domain, if the OAM configures multiple reference signal sequences, all the reference signal sequences need to be traversed and blindly detected.

The base station detects the far-end interference based on the far-end interference characteristic and the reference signal, and the method is implemented as follows:

if the base station detects suspected far-end interference based on the far-end interference characteristics (namely, the base station judges that a reference signal sequence needs to be sent based on the far-end interference characteristics) within the set T1 time, or continuously detects the reference signal sequence of the far-end base station, starting sending of the reference signal sequence;

if the base station continuously detects the reference signal sequence within the set time T2, determining that the determined far-end interference is detected;

and if the base station cannot continuously detect the reference signal sequence and cannot detect the suspected far-end interference within the set time T3, judging that the far-end interference disappears and stopping sending the reference signal sequence.

In summary, at the sending end, an embodiment of the present application provides a method for detecting a far-end interference source, referring to fig. 2, including:

step 201: a first base station acquires first reference signal configuration information ID configured by OAM;

wherein the first reference signal configuration information ID comprises a first reference signal sequence and time-frequency information of the first reference signal sequence;

step 202: and if the first base station determines that the condition for sending the first reference signal sequence is met, sending the first reference signal sequence on the time-frequency information of the first reference signal sequence.

Specifically, the first base station judges that a first reference signal sequence needs to be sent based on the far-end interference characteristics; the second base station identifies far-end interference by detecting the reference signal sequence. For example, the detailed implementation of the transmission part of the reference signal sequence in the embodiment of the present application.

An embodiment of the present application provides a method for determining a far-end interference source, with reference to fig. 3, including:

step 301: the second base station detects a first reference signal sequence and time-frequency information thereof sent by the first base station;

in a specific implementation process, the second base station may detect the first reference signal sequence and time-frequency information thereof sent by the first base station based on configuration information of OAM, that is, a first reference signal configuration information ID configured for the first base station, so as to reduce resource consumption of blind detection.

Here, the second reference signal configuration information ID is the reference signal configuration information ID of the interfering station. Specifically, the second base station is a victim station, and can detect a second reference signal sequence sent on a special time slot;

step 302: the second base station determines second reference signal configuration information ID according to the detected first reference signal sequence and time frequency information thereof;

specifically, when the base station detects the reference signal sequence, it may determine the reference signal configuration information ID associated with the reference signal sequence, determine the reference signal sequence identifier, and the radio frame number, the timeslot number, and the timeslot format configuration information associated with the reference signal sequence.

Step 303: and the second base station sends the second reference signal configuration information ID to OAM, so that the OAM determines the base station ID of the interference station according to the corresponding relation between the reference signal configuration information ID and the base station ID, and further determines a far-end interference source.

According to a possible implementation manner, the victim station may further determine the interfering station corresponding to the second reference signal configuration information ID according to the correspondence between the reference signal configuration information ID and the base station ID, so as to directly determine the interfering station. The corresponding relationship between the reference signal configuration information ID and the base station ID may be that OAM is issued to the victim station.

Step 304: and the OAM determines an interference source base station or an interference base station set according to the corresponding relation between the reference signal configuration information ID and the base station ID so as to identify the interference source.

Specifically, the method may include:

step one, OAM receives a second reference signal configuration information ID sent by a second base station;

wherein the second reference signal configuration information ID is determined by the second base station based on the detected first reference signal sequence and time-frequency information of the first reference signal sequence;

and step two, the OAM determines the interference station corresponding to the second reference signal configuration information ID according to the corresponding relation between the reference signal configuration information ID and the base station ID.

And determining that the far-end interference exists according to the reference signal sequence, thereby realizing accurate positioning of the far-end interference source. The specific implementation is seen in the detection part of the far-end interference in the embodiment of the application.

The reference signal sequence sent by the base station and the time-frequency information of the reference signal sequence are completely determined by OAM, so that the OAM can conveniently and uniformly control the behaviors of the base station for sending and detecting the reference signal sequence. The sending period of the reference signal sequence is uniformly configured by OAM, and the complexity of a detection algorithm can be obviously reduced, so that the real-time performance of remote interference detection can be ensured.

In addition, OAM pertinently and adaptively allocates a specific reference signal sequence and corresponding configuration information to the base station according to the scale and the regional situation of the occurrence of the remote interference, so that the complexity of a detection algorithm at the base station side can be obviously reduced. The OAM can flexibly make and adjust the mapping rule of the reference signal configuration information ID (corresponding to the interference source ID) and the base station ID according to the regional situation of the occurrence of the far-end interference, thereby flexibly controlling the positioning precision of the interference source and the complexity of a base station side detection algorithm.

Based on the same inventive concept, an embodiment of the present invention provides a detection apparatus for a far-end interference source, as shown in fig. 4a, including:

a processing unit 401 configured to determine a first base station; the first base station is any one of all base stations affected by far-end interference, and the base stations affected by the far-end interference comprise interfered stations and/or interference applying stations;

a transceiving unit 402, configured to configure a first reference signal configuration information ID for a first base station; the first reference signal configuration information ID is used to determine a first reference signal sequence and time-frequency information of the first reference signal sequence, so that the first base station transmits the first reference signal sequence on the time-frequency information of the first reference signal sequence based on the first reference signal configuration information ID under the condition that the first reference signal sequence is transmitted.

In a possible implementation manner, the transceiver unit 402 is further configured to receive a second reference signal configuration information ID sent by a second base station; the second reference signal configuration information ID is the first reference signal sequence and time-frequency information thereof sent by the first base station, which are detected by the second base station based on the OAM configuration information; and is determined according to the detected first reference signal sequence and the time-frequency information thereof; the second reference signal configuration information ID is the reference signal configuration information ID of the interference station;

the processing unit 401 is further configured to determine, based on the second reference signal configuration information ID, a base station ID of the interfering station according to a mapping relationship between a preset reference signal configuration information ID and the base station ID, so as to determine a far-end interference source.

In a possible implementation manner, the processing unit 401 is specifically configured to:

determining a plurality of reference signal sequences in the area range according to the area range of the possible far-end interference where the base station is located; determining a first reference signal sequence ID from the plurality of reference signal sequences; and determining the first reference signal configuration information ID according to the first reference signal sequence ID and the time-frequency information of the first reference signal sequence.

In one possible implementation manner, the time-frequency information of the first reference signal sequence and the second reference signal sequence respectively includes but is not limited to: radio frame number, time slot configuration information, and frequency domain resource configuration information.

In one possible implementation, the processing unit 401 is further configured to:

configuring a transmission period of the first reference signal sequence for the first base station.

In one possible implementation, the processing unit 402 is further configured to:

Based on the same inventive concept, an embodiment of the present invention provides a detection apparatus for a far-end interference source, as shown in fig. 5a, including:

a transceiver unit 501, configured to acquire a first reference configuration information ID configured by OAM, where the first reference configuration information ID is used to determine a first reference signal sequence and time-frequency information of the first reference signal sequence;

a processor 502, configured to determine that a condition for sending the first reference signal sequence is satisfied, and send the first reference signal sequence on time-frequency information of the first reference signal sequence.

Based on the same inventive concept, an embodiment of the present invention provides a detection apparatus for a far-end interference source, as shown in fig. 6a, including:

a transceiver 601, configured to detect a second reference signal sequence and time-frequency information thereof; and sending the second reference configuration information ID to OAM, so that the OAM determines the base station ID of the interference station corresponding to the second reference configuration information ID according to the corresponding relation between the reference configuration information ID and the base station ID, thereby determining a far-end interference source.

A processing unit 602, configured to determine a second reference configuration information ID according to the second reference signal sequence and the time-frequency information of the second reference signal sequence.

The embodiment of the present application provides a computing device, which may specifically be a desktop computer, a portable computer, a smart phone, a tablet computer, a Personal Digital Assistant (PDA), and the like. The computing device may include a Central Processing Unit (CPU), memory, input/output devices, etc., the input devices may include a keyboard, mouse, touch screen, etc., and the output devices may include a Display device, such as a Liquid Crystal Display (LCD), a Cathode Ray Tube (CRT), etc.

The memory may include Read Only Memory (ROM) and Random Access Memory (RAM), and provides the processor with program instructions and data stored in the memory. In the embodiments of the present application, the memory may be used for storing a program of any one of the methods provided by the embodiments of the present application.

The processor is used for executing any one of the methods provided by the embodiment of the application according to the obtained program instructions by calling the program instructions stored in the memory.

An embodiment of the present application provides a detection apparatus for a far-end interference source, see fig. 4b, including:

a processor 400 for reading the program in the memory 420 to determine a first base station; the first base station is any one of all base stations affected by far-end interference, and the base stations affected by the far-end interference comprise interfered stations and/or interference applying stations;

configuring, by the transceiver 410, a first reference signal configuration information ID for the first base station; the first reference signal configuration information ID is used to determine a first reference signal sequence and time-frequency information of the first reference signal sequence, so that the first base station transmits the first reference signal sequence on the time-frequency information of the first reference signal sequence based on the first reference signal configuration information ID under the condition that the first reference signal sequence is transmitted.

In a possible implementation manner, the transceiver 410 is further configured to receive a second reference signal configuration information ID sent by the second base station; the second reference signal configuration information ID is the first reference signal sequence and time-frequency information thereof sent by the first base station, which are detected by the second base station based on the OAM configuration information; and is determined according to the detected first reference signal sequence and the time-frequency information thereof; the second reference signal configuration information ID is the reference signal configuration information ID of the interference station;

the processor 400 is further configured to determine, based on the second reference signal configuration information ID, a base station ID of the interfering station according to a mapping relationship between a preset reference signal configuration information ID and the base station ID, so as to determine a far-end interference source.

In one possible implementation, the processor 400 is specifically configured to:

In a possible implementation manner, the mapping relationship between the reference signal configuration information ID and the base station ID is a one-to-many mapping or a one-to-one mapping, and the mapping relationship is configured by the OAM in a unified manner.

In one possible implementation, the processor 400 is further configured to: configuring a transmission period of the first reference signal sequence for the first base station.

In one possible implementation, the processor 400 is further configured to:

An embodiment of the present application provides a detection apparatus for a far-end interference source, see fig. 5b, including:

a transceiver 510, configured to obtain a first reference configuration information ID of OAM configuration, where the first reference configuration information ID is used to determine a first reference signal sequence and time-frequency information of the first reference signal sequence; a processor 500, configured to send the first reference signal sequence on the time-frequency information of the first reference signal sequence if it is determined that the condition for sending the first reference signal sequence is satisfied.

An embodiment of the present application provides a detection apparatus for a far-end interference source, see fig. 6b, including:

a transceiver 610, configured to detect a second reference signal sequence and time-frequency information thereof; and sending the second reference configuration information ID to OAM, so that the OAM determines the base station ID of the interference station corresponding to the second reference configuration information ID according to the corresponding relation between the reference configuration information ID and the base station ID, thereby determining a far-end interference source.

A processor 600 configured to determine a second reference configuration information ID according to the second reference signal sequence and the time-frequency information of the second reference signal sequence.

4b, 5b, and 6b, the bus architecture may include any number of interconnected buses and bridges, particularly one or more processors represented by processor 400 and

memory

400 and 620 linked together by various circuits. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The

transceiver

410 and 610 may be multiple elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The

processor

400 and 600 are responsible for managing the bus architecture and general processing, and the

memory

420 and 620 can store data used by the

processor

400 and 600 in performing operations.

The

processor

400, 600 may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or a Complex Programmable Logic Device (CPLD).

Embodiments of the present application provide a computer storage medium for storing computer program instructions for an apparatus provided in the embodiments of the present application, which includes a program for executing any one of the methods provided in the embodiments of the present application.

The computer storage media may be any available media or data storage device that can be accessed by a computer, including, but not limited to, magnetic memory (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memory (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor memory (e.g., ROMs, EPROMs, EEPROMs, non-volatile memory (NAND FLASH), Solid State Disks (SSDs)), etc.

The method provided by the embodiment of the application can be applied to terminal equipment and also can be applied to network equipment.

The Terminal device may also be referred to as a User Equipment (User Equipment, abbreviated as "UE"), a Mobile Station (Mobile Station, abbreviated as "MS"), a Mobile Terminal (Mobile Terminal), or the like, and optionally, the Terminal may have a capability of communicating with one or more core networks through a Radio Access Network (RAN), for example, the Terminal may be a Mobile phone (or referred to as a "cellular" phone), a computer with Mobile property, or the like, and for example, the Terminal may also be a portable, pocket, hand-held, computer-built-in, or vehicle-mounted Mobile device.

A network device may be a base station (e.g., access point) that refers to a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminals. The base station may be configured to interconvert received air frames and IP packets as a router between the wireless terminal and the rest of the access network, which may include an Internet Protocol (IP) network. The base station may also coordinate management of attributes for the air interface. For example, the base Station may be a Base Transceiver Station (BTS) in GSM or CDMA, a base Station (NodeB) in WCDMA, an evolved Node B (NodeB or eNB or e-NodeB) in LTE, or a gNB in 5G system. The embodiments of the present application are not limited.

The above method process flow may be implemented by a software program, which may be stored in a storage medium, and when the stored software program is called, the above method steps are performed.

In summary, compared with the prior art, the method has the following advantages:

in the prior art, the detection period is too long, the detection real-time performance is poor, and the effectiveness of interference avoidance is influenced. The method only requires to detect the far-end interference, and does not need to detect and identify all far-end interference sources, so that the sending period and the detection period of the reference signal are system frame periods, and the detection is relatively real-time, so that the interference avoidance has real-time performance;

the detection algorithm in the prior art has the disadvantages of high complexity, high resource consumption of base station equipment and poor real-time performance. The technical scheme of the application is as follows: the reference signal sequence transmitted by the base station and the time-frequency information of the transmitted reference signal sequence are completely determined by OAM (Operation Administration and Maintenance, Operation Maintenance and management), which is convenient for the OAM to uniformly control the behavior of the base station transmitting and detecting the reference signal sequence. The sending period of the reference signal sequence is uniformly configured by OAM, and the complexity of a detection algorithm can be obviously reduced, so that the real-time performance of remote interference detection can be ensured. In addition, OAM pertinently and adaptively allocates a specific reference signal sequence and corresponding configuration information to the base station according to the scale and the regional situation of the occurrence of the remote interference, so that the complexity of a detection algorithm at the base station side can be obviously reduced. The OAM can flexibly formulate and adjust the mapping relation between the reference signal configuration information ID and the base station ID according to the regional situation of the occurrence of the remote interference, thereby flexibly controlling the positioning precision of the interference source and the complexity of a base station side detection algorithm.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A method for detecting a remote interference source, the method comprising:

determining a first base station by operation, maintenance and management (OAM) equipment; the first base station is any one of all base stations affected by far-end interference, and the base stations affected by the far-end interference comprise interfered stations and/or interference applying stations;

the OAM configures a first reference signal configuration information identifier ID for a first base station; the first reference signal configuration information ID is used to determine a first reference signal sequence and time-frequency information of the first reference signal sequence, so that the first base station transmits the first reference signal sequence on the time-frequency information of the first reference signal sequence based on the first reference signal configuration information ID under the condition that the first reference signal sequence is transmitted.

2. The method of claim 1, further comprising:

the OAM receives a second reference signal configuration information ID sent by a second base station; the second reference signal configuration information ID is the first reference signal sequence and time-frequency information thereof sent by the first base station, which are detected by the second base station based on the OAM configuration information; and is determined according to the detected first reference signal sequence and time-frequency information thereof; the second reference signal configuration information ID is the reference signal configuration information ID of the interference station;

and the OAM determines the base station ID of the interference station according to the mapping relation between the preset reference signal configuration information ID and the base station ID based on the second reference signal configuration information ID, so as to determine a far-end interference source.

3. The method of claim 1, wherein the OAM configures a first reference signal configuration Information (ID) for the first base station, comprising:

4. The method according to any of claims 1-3, wherein the time-frequency information of the first reference signal sequence and the second reference signal sequence respectively includes but is not limited to:

5. The method of claim 4, wherein the mapping relationship between the reference signal configuration information ID and the base station ID is a one-to-many mapping or a one-to-one mapping, and the mapping relationship is configured by OAM uniformly.

6. The method of claim 4, further comprising:

7. The method of claim 6, wherein the OAM configures the first reference signal configuration Information (ID) for the first base station, and wherein the configuring comprises:

8. A method for detecting a remote interference source, the method comprising:

9. A method for detecting a remote interference source, the method comprising:

and the second base station sends the second reference configuration information ID to OAM, so that the OAM determines the base station ID of the interference station corresponding to the second reference configuration information ID according to the corresponding relation between the reference configuration information ID and the base station ID, thereby determining a far-end interference source.

10. An apparatus for detecting a remote interference source, comprising:

a transceiver unit, configured to configure a reference signal configuration information ID for a first base station; the first reference signal configuration information ID is used to determine a first reference signal sequence and time-frequency information of the first reference signal sequence; therefore, the first base station sends the first reference signal sequence on the time-frequency resource of the first reference signal sequence based on the first reference signal configuration information ID under the condition that the first reference signal sequence is sent.

11. The apparatus of claim 10,

the transceiver unit is further configured to receive a second reference signal configuration information ID sent by a second base station; the second reference signal configuration information ID is the first reference signal sequence and time-frequency information thereof sent by the first base station, which are detected by the second base station based on the OAM configuration information; and is determined according to the detected first reference signal sequence and time-frequency information thereof; the second reference signal configuration information ID is the reference signal configuration information ID of the interference station;

the processing unit is further configured to determine, based on the second reference signal configuration information ID, a base station ID of the interfering station according to a mapping relationship between a preset reference signal configuration information ID and the base station ID, so as to determine a far-end interference source.

12. The apparatus according to claim 10, wherein the processing unit is specifically configured to:

13. The apparatus of any of claims 11-12, wherein the time-frequency information of the first reference signal sequence and the second reference signal sequence respectively comprises but is not limited to: radio frame number, time slot configuration information, and frequency domain resource configuration information.

14. The apparatus of claim 12, wherein the mapping relationship between the reference signal configuration information ID and the base station ID is a one-to-many mapping or a one-to-one mapping, and the mapping relationship is configured by OAM uniformly.

15. The apparatus of claim 13, wherein the processing unit is further configured to configure a transmission period of the first reference signal sequence for the first base station.

16. The apparatus according to claim 15, wherein the processing unit is specifically configured to:

if the sending period of the reference signal sequence configured by the OAM is less than or equal to a system frame period, the radio frame number of the first reference signal sequence determined by the first reference signal configuration information ID is a system frame number; if the sending period of the first reference signal sequence configured by the OAM is greater than the system frame period, the radio frame number of the first reference signal sequence determined by the first reference signal configuration information ID is an expanded radio frame number; the expanded radio frame number is the radio frame number of which the maximum value of the frame number is greater than the maximum value of the system frame number.

17. An apparatus for detecting a remote interference source, comprising:

and the processing unit is used for sending the first reference signal sequence on the time-frequency information of the first reference signal sequence if the condition of sending the first reference signal sequence is determined to be met.

18. An apparatus for detecting a remote interference source, comprising:

and the transceiver unit is configured to send the second reference configuration information ID to the OAM, so that the OAM determines, according to a correspondence between the reference configuration information ID and the base station ID, the base station ID of the interfering station corresponding to the second reference configuration information ID, thereby determining a far-end interference source.

19. A computing device, comprising:

a memory for storing program instructions;

a processor for calling program instructions stored in said memory, for performing the method of any one of claims 1 to 7 or for performing the method of claim 8 or claim 9 in accordance with the obtained program.

20. A computer storage medium storing computer-executable instructions for causing a computer to perform the method of any one of claims 1 to 7 or to perform the method of claim 8 or claim 9.