CN110536414B - Interference positioning method and device, computer equipment and storage medium - Google Patents
Interference positioning method and device, computer equipment and storage medium Download PDFInfo
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Abstract
The invention relates to an interference positioning method, an interference positioning device, computer equipment and a storage medium. The method comprises the following steps: detecting signal power in a plurality of uplink idle subframes of each radio frequency remote unit in a preset time period according to a preset physical frame format; then determining the maximum value and/or the average value of the signal power in a plurality of uplink idle subframes of each radio frequency remote unit; and then positioning the interference signal according to the maximum value and/or the average value. Since the uplink idle sub-frame does not transmit any service data sent by the UE, if a signal with a certain power exists in the uplink idle sub-frame, the uplink idle sub-frame can be determined as an interference signal, and therefore, the interference can be located by detecting the signal power in the idle sub-frame. The interference positioning method does not need the baseband unit to decode the superposed signals of a plurality of radio frequency remote units, is simple to use and easy to realize, and further improves the popularization and application of the distributed base station system.
Description
Technical Field
The present application relates to the field of mobile communications technologies, and in particular, to an interference positioning method and apparatus, a computer device, and a storage medium.
Background
With the continuous development of mobile communication technology, base station products are more and more abundant, and a distributed base station becomes a modernized product covered by an indoor deep network, which is widely popularized by operators due to the advantages of flexible deployment, high performance-to-cost ratio, strong environmental adaptability and the like, and is widely applied to various indoor scenes such as markets, office buildings, schools and the like.
At present, due to the randomness of the address selection of the base station, the problem of co-channel interference is often encountered in the process of equipment deployment and station opening, and the service experience of a user is greatly influenced by the serious co-channel interference. Therefore, it is important to accurately locate the position of the interference for operation and maintenance of the base station. At present, a distributed base station generally processes uplink data of a plurality of remote ends in a direct superposition manner, that is, multi-path data of the plurality of remote ends are combined first, then the superposed signals are subjected to unified demodulation and decoding processing, then a baseband unit performs interference detection, channel estimation and the like on the data, and then the position of the interference is located by analyzing the demodulated and decoded data.
However, in practical applications, it is difficult to locate the position of the interference through the demodulated data of the base station, so that the popularity of the distributed base station system is low.
Disclosure of Invention
In view of the foregoing, it is desirable to provide an interference positioning method, an apparatus, a computer device and a storage medium for a base station to accurately position a location of an interference signal.
In a first aspect, a method of interference localization, the method comprising:
detecting signal power in a plurality of uplink idle subframes of each radio frequency remote unit in a preset time period according to a preset physical frame format; the preset physical frame format comprises at least one uplink idle subframe;
determining the maximum value and/or the average value of the signal power in a plurality of uplink idle subframes of each radio frequency remote unit;
and positioning the interference signal according to the maximum value and/or the average value.
In one embodiment, the physical frame format is used to instruct the UE to stop uploading the first traffic data in at least one uplink idle subframe; the first traffic data comprises traffic data transmitted on a physical access channel, PRACH.
In one embodiment, the physical frame format is used to instruct the UE to stop uploading the channel state information CSI in at least one uplink idle subframe.
In one embodiment, the physical frame format is used to instruct the UE to stop uploading scheduling requests SR in at least one uplink idle frame.
In one embodiment, the physical frame format is used for instructing the base station to stop issuing scheduling information to the UE in the issued subframe, and the scheduling information is used for instructing the UE to upload second service data in an uplink idle subframe; the second traffic data comprises traffic data transmitted on a shared channel, PUSCH.
In one embodiment, the physical frame format is further used to instruct the base station to send a retransmission stop instruction to the UE in the downlink subframe, where the retransmission stop instruction is used to instruct the UE to stop retransmitting the second service data in at least one uplink idle subframe.
In one embodiment, the base station includes a baseband unit and a radio frequency remote unit, and locates the interference signal according to each maximum value and/or average value, including:
each radio frequency remote unit sends the maximum value and/or the average value of the signal power in a plurality of uplink idle subframes in a preset time period to a baseband unit;
and the baseband unit determines the position of the radio frequency remote unit corresponding to the maximum value and/or the average value which is greater than the preset interference threshold value as the position of the interference signal.
In a second aspect, an interference localization apparatus, the apparatus comprising:
the detection module is used for detecting the signal power in a plurality of uplink idle subframes of each radio frequency remote unit in a preset time period according to a preset physical frame format; the preset physical frame format comprises at least one uplink idle subframe;
a determining module, configured to determine a maximum value and/or an average value of signal power in a plurality of uplink idle subframes of each radio frequency remote unit;
and the positioning module is used for positioning the interference signal according to each maximum value and/or average value.
In a third aspect, a computer device includes a memory and a processor, where the memory stores a computer program, and the processor implements the interference positioning method according to any one of the embodiments of the first aspect when executing the computer program.
In a fourth aspect, a computer-readable storage medium has stored thereon a computer program which, when being executed by a processor, implements the interference localization method according to any one of the embodiments of the first aspect.
The application provides an interference positioning method, an interference positioning device, computer equipment and a storage medium, wherein the interference positioning method comprises the following steps: detecting signal power in a plurality of uplink idle subframes of each radio frequency remote unit in a preset time period according to a preset physical frame format; then determining the maximum value and/or the average value of the signal power in a plurality of uplink idle subframes of each radio frequency remote unit; and then positioning the interference signal according to the maximum value and/or the average value. Since the uplink idle sub-frame does not transmit any service data sent by the UE, if a signal with a certain power exists in the uplink idle sub-frame, the uplink idle sub-frame can be determined as an interference signal, and therefore, the interference can be located by detecting the signal power in the idle sub-frame. The interference positioning method does not need the baseband unit to decode the superposed signals of a plurality of radio frequency remote units, is simple to use and easy to realize, and further improves the popularization and application of the distributed base station system.
Drawings
Fig. 1 is a schematic diagram of a distributed base station system according to an embodiment;
fig. 2 is a flowchart of an interference positioning method according to an embodiment;
fig. 3 is a schematic structural diagram of a physical frame format according to an embodiment;
fig. 4 is a schematic structural diagram of a physical frame format according to an embodiment;
fig. 5 is a schematic structural diagram of a physical frame format according to an embodiment;
fig. 6 is a flowchart of an interference location method according to an embodiment;
fig. 7 is a schematic structural diagram of an interference locator according to an embodiment;
fig. 8 is a schematic structural diagram of an interference locator according to an embodiment;
fig. 9 is a schematic internal structural diagram of a computer device according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The interference positioning method provided by the present application can be applied to a distributed base station system as shown in fig. 1, where a base station communicates with a plurality of user UEs through a network, and the base station includes a baseband unit, an extension unit, and a radio frequency remote unit. Wherein, the UE may be, but is not limited to, various personal computers, laptops, smartphones, tablets, and portable wearable devices. It should be noted that the present solution is not limited to the base station, and may be a micro base station, a pico station, and the like.
The following describes in detail the technical solutions of the present application and how the technical solutions of the present application solve the above technical problems by embodiments and with reference to the drawings. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.
Fig. 2 is a flowchart of an interference positioning method according to an embodiment, where an execution subject of the method is the base station in fig. 1, and the method relates to a specific process of the base station performing interference positioning by detecting signal power in an uplink idle subframe. As shown in fig. 2, the method specifically includes the following steps:
s101, detecting signal power in a plurality of uplink idle subframes of each radio frequency remote unit in a preset time period according to a preset physical frame format; the preset physical frame format comprises at least one uplink idle subframe.
The physical frame format is obtained by configuring cell parameters and UE parameters in advance by a base station, wherein the cell parameters mainly comprise preamble parameters, and the UE parameters mainly comprise related parameters of periodic Channel State Information (CSI) and related parameters of a Scheduling Request (SR). The physical frame format includes at least one uplink idle subframe, and the uplink idle subframe does not transmit any service data uploaded by the UE, where the service data may include service data that the UE needs to send on a physical access channel PRACH when accessing the cell, or may include service data that the UE needs to send on a shared channel PUSCH after accessing the cell, or service data sent on other types of channels. Optionally, the physical frame format may also include at least one special subframe, and the special subframe may be used to transmit any service data sent by the UE, so that the service data that needs to be uploaded in the original uplink idle subframe may be uploaded in the special subframe. The physical frame format may adopt any one of the formats, for example, for a Time Division Duplex (TDD) physical frame format type, the physical frame format may adopt physical frame formats of different formats such as format0, format1, format2, format3, format4, and format 5. This embodiment is not limited as long as the physical frame format in this embodiment includes at least one uplink idle subframe.
For example, taking a TDD frame format as an example, as shown in fig. 3, the physical frame format is a physical frame format of format4 of TDD, and the ratio of uplink to downlink is 3:1, where 1S and 6S are special subframes, and 2U and/or 7U are uplink idle subframes. The base station sets the physical frame format in advance by configuring the PRACH parameter, the CSI parameter and the SR parameter, so that the UE does not transmit any information related to the PRACH, the CSI and the SR when at least one uplink idle subframe (2U and/or 7U) in the physical frame format performs service data interaction with the UE later.
In this embodiment, when the base station normally performs service operation, each radio frequency remote unit in the base station detects signal power in a time slot in which an uplink idle subframe is located, and if a signal with a certain numerical power can be detected, it indicates that there may be interference, and if a signal with a certain numerical power cannot be detected, it indicates that there is no interference. In the actual detection process, each radio frequency remote unit may detect signal powers in a plurality of uplink idle subframes within a preset time period, where the preset time period represents a time required for detection, and may be determined in advance by the base station according to an actual detection requirement, for example, a period in which the UE sends a signal is set to 80ms, and accordingly, the preset time period may be set to any time period greater than 80ms, for example, 1000ms, 4000ms, and the like.
S102, determining the maximum value and/or the average value of the signal power in a plurality of uplink idle sub-frames of each radio frequency remote unit.
When each rf remote unit acquires the signal powers in multiple uplink idle subframes based on the step of S101, an average value of the multiple signal powers may be further calculated according to the multiple signal powers, or the multiple signal powers may be compared to determine a maximum value thereof.
S103, positioning the interference signal according to the maximum value and/or the average value.
When the base station obtains the maximum value and/or the average value of the signal power in the plurality of uplink idle subframes detected by each radio frequency remote unit, the interference signal can be further positioned by judging the height of each maximum value, or by judging the height of each average value. Optionally, the base station may further perform preliminary positioning on the interference signal by determining the height of each maximum value, and then perform final positioning on the interference signal by determining the height of each average value; optionally, the base station may further perform preliminary positioning on the interference signal by determining the height of each average value, and then perform final positioning on the interference signal by determining the height of each maximum value.
The interference positioning method provided in the above embodiment detects, according to a preset physical frame format, signal powers in a plurality of uplink idle subframes of each radio frequency remote unit within a preset time period; then determining the maximum value and/or the average value of the signal power in a plurality of uplink idle subframes of each radio frequency remote unit; and then positioning the interference signal according to the maximum value and/or the average value. Since the uplink idle sub-frame does not transmit any service data sent by the UE, if a signal with a certain power exists in the uplink idle sub-frame, the uplink idle sub-frame can be determined as an interference signal, and therefore, the interference can be located by detecting the signal power in the idle sub-frame. The interference positioning method does not need the baseband unit to decode the superposed signals of a plurality of radio frequency remote units, is simple to use and easy to realize, and further improves the popularization and application of the distributed base station system.
Based on the description of the above embodiments, no service data sent by the UE is transmitted in the uplink idle subframe in the physical frame format, and there are multiple application scenarios according to the type of the service data.
First application scenario: the service data is first service data, and specifically, the first service data includes service data transmitted on a physical access channel PRACH. In this application scenario, the physical frame format is used to instruct the UE to stop uploading the first service data in at least one uplink idle subframe.
Based on the above application scenario, when it is assumed that the UE sends the service data in the physical frame format as shown in fig. 3, the UE stops uploading the first service data in the idle subframe 2U and/or the idle subframe 7U in the physical frame format, and uploads the first service data in the special subframe 1S and/or the special subframe 6S, so that the base station can normally access the UE, and at least one uplink idle subframe can be reserved, so that the base station can detect the interference signal according to the uplink idle subframe later.
Second application scenario: the service data is Channel State Information (CSI), the application scenario describes a scenario that a base station needs to send CSI to a User Equipment (UE) when performing channel quality detection, and in the application scenario, the physical frame format is used for indicating the UE to stop uploading the CSI in at least one uplink idle subframe.
Based on the above application scenario, when the UE is assumed to send CSI in the physical frame format as shown in fig. 3, the UE stops uploading CSI in the idle subframe 2U and/or the idle subframe 7U in the physical frame format, that is, the function of reporting CSI is turned off, so as to reserve at least one uplink idle subframe, so that the base station can detect an interference signal according to the uplink idle subframe later. It should be noted that the CSI is not necessary in the service process, so that the CSI report of the UE is closed in the actual operation, and the normal transmission of other service data is not affected.
The third application scenario: the service data is a scheduling request SR, the application scenario describes a scenario when the UE uploads the SR to request the base station to allocate uplink resources, and in the application scenario, the physical frame format is used to instruct the UE to stop uploading the scheduling request SR in at least one uplink idle frame.
Based on the application scenario, when it is assumed that the UE sends the service data in the physical frame format as shown in fig. 3, the UE stops uploading the SR in the idle subframe 2U and/or 7U in the physical frame format, so that the base station does not allocate uplink resources on the idle subframe 2U and/or 7U according to the SR, so as to reserve at least one uplink idle subframe, and then the base station detects the interference signal according to the uplink idle subframe. It should be noted that, if the UE sends a signal periodically, it needs to determine which uplink subframes in a period are used as uplink idle subframes first by configuring parameters of a cell and the UE, and then detect signal power of the uplink idle subframes in the period, and it is particularly noted that, in a plurality of physical frames included in the signal in the period, any one of the physical frames may be set according to a preset physical frame format, that is, includes the uplink idle subframes, and other physical frames may not include the uplink idle subframes but include the uplink subframes for normally transmitting service data.
For example, as shown in fig. 4, assuming that a period in which the UE transmits a signal is 80ms and each physical frame is 10ms, 16 uplink subframes (uplink subframes # 1 to #16 in fig. 4) exist in the period, and the base station uses the uplink subframes # 1 and #2 in the first physical frame as reserved uplink idle subframes, so that the uplink subframes # 1 and #2 do not upload related information of the SR in an actual service process, but the uplink subframes #3 to #16 normally upload related information of the SR, so that the UE can normally upload related service data to the base station and simultaneously detect an interference signal through the uplink idle subframes.
A fourth application scenario: the service data is second service data, and specifically, the second service data includes service data transmitted on a shared channel PUSCH. The application scenario describes a scenario in which the base station issues scheduling information to the UE, so that the UE requests to allocate a PUSCH according to the scheduling information, and uploads second service data in the PUSCH. In the application scenario, the physical frame format is used to instruct the base station to stop issuing scheduling information to the UE in the issued subframe, where the scheduling information is used to instruct the UE to upload second service data in at least one uplink idle subframe.
Based on the above application scenario, when it is assumed that the base station and the UE transmit and upload data in the physical frame format shown in fig. 5, the base station may stop transmitting scheduling information (UL-DCI in the figure) to the UE in a transmission subframe (e.g., the first 3D in the figure) in the physical frame format, so that the UE does not receive the scheduling information, and does not perform initial transmission of second service data in an uplink idle subframe (the first 7U in the figure). The scheduling information is used to instruct the UE to upload the second service data in the uplink idle subframe (the first 7U in the figure), so that when the base station does not issue the scheduling information to the UE, the UE does not upload the second service data in the uplink idle subframe (the first 7U in the figure). It should be noted that the delivered subframe 3D in the figure is only an example, and the base station may also deliver the scheduling information in 4D and 5D or stop delivering the scheduling information.
Fifth application scenario: the service data is second service data. The application scenario describes a scenario that the ACK/NACK bit in the PUSCH is decoded incorrectly at the base station, and the UE needs to upload the second service data in the PUSCH again. In the application scenario, the physical frame format is further used to instruct the base station to send a retransmission stop instruction to the UE in the downlink subframe, where the retransmission stop instruction is used to instruct the UE to stop retransmitting the second service data in at least one uplink idle subframe.
Based on the above application scenario, when it is assumed that the base station and the UE transmit and upload data in the physical frame format shown in fig. 5, the base station sends a retransmission stop instruction to the UE in a transmission subframe (the first 3D in the figure) in the physical frame format, where the retransmission stop instruction is used to instruct the UE to stop retransmitting the second service data in an uplink idle subframe (the first 7U in the figure). It should be noted that the issue subframe 3D and the uplink idle subframe 7U in the figure are only examples, the base station may also issue a retransmission instruction or stop a retransmission instruction in 4D and 5D, and the uplink idle subframe may also be other uplink subframes in the figure, such as 2U, the second 7U, the third 7U, and the like.
In practical applications, the base station sets a Physical Hybrid ARQ Indicator Channel (PHICH) to implement transmission of the retransmission stop instruction, for example, when the PHICH is 1, the base station instructs the UE to stop retransmitting the service data in the next uplink subframe, and when the PHICH is 0, the base station instructs the UE to retransmit the service data in the next uplink subframe. For example, in fig. 5, if the first 7U subframe is an uplink idle subframe, the base station may issue a retransmission stop instruction to the UE in the first 3D subframe or other downlink subframes, specifically, make the PHICH equal to 1, and transmit the value to the UE, so that the UE determines that the second service data does not need to be retransmitted in the first 7U subframe according to the value.
When the interference positioning method described in any of the above embodiments is implemented by using the distributed base station application system shown in fig. 1, the present application further provides an implementation manner of S104 in the embodiment of fig. 2, specifically, the S104 "locates the interference signal according to each maximum value and/or average value", as shown in fig. 6, including:
s201, each radio frequency remote unit sends the maximum value and/or the average value of the signal power in a plurality of uplink idle sub-frames in a preset time period to a baseband unit.
In practical application, the baseband unit configures a preset time period in advance, and sends the preset time period to each radio frequency remote unit, so that each radio frequency remote unit detects signal power in a plurality of uplink idle subframes within the preset time period, and further counts the maximum value and/or the average value of the signal power values in the plurality of uplink idle subframes. And then sending the statistical result to the baseband unit so that the baseband unit can execute subsequent operation according to the statistical result.
S202, the base band unit determines the position of the radio frequency remote unit corresponding to the maximum value and/or the average value larger than the preset interference threshold value as the position of the interference signal.
The preset interference threshold may represent a maximum power threshold or a maximum average power threshold, where a signal corresponding to a power greater than the maximum power threshold is an interference signal, or a signal corresponding to a power greater than the maximum average power threshold is an interference signal. When the baseband unit receives the maximum value sent by the radio frequency remote unit, the preset interference threshold is the maximum power threshold, and when the baseband unit receives the average value sent by the video remote unit, the preset interference threshold is the maximum average power threshold.
In this embodiment, when the baseband unit receives the maximum value and/or the average value sent by each radio frequency remote unit based on the foregoing S201, the location of the interference signal may be further determined by determining whether each maximum value is greater than the preset interference threshold, specifically: and if the maximum value is larger than the interference preset threshold value, determining the position of the radio frequency remote unit corresponding to the maximum value larger than the interference preset threshold value as the position of the interference signal. If the maximum value is smaller than or equal to the preset interference threshold, it indicates that no interference signal exists at the position of the radio frequency remote unit corresponding to the maximum value smaller than or equal to the preset interference threshold. Optionally, the baseband unit may further determine the location of the interference signal by determining whether each average value is greater than a preset interference threshold, specifically: and if the average value is larger than the interference preset threshold value, determining the position of the radio frequency remote unit corresponding to the average value larger than the interference preset threshold value as the position of the interference signal. If the average value is smaller than or equal to the preset interference threshold, it indicates that no interference signal exists at the position of the radio frequency remote unit corresponding to the average value smaller than or equal to the preset interference threshold. Optionally, when the radio frequency remote unit reports the maximum value and the average value to the baseband unit at the same time, the baseband unit may determine the location of the interference signal primarily by determining whether each maximum value is greater than the preset interference threshold, and then further determine whether each average value is greater than the preset interference threshold, and finally determine the location of the interference signal. Optionally, the baseband unit may also preliminarily determine the location of the interference signal by determining whether each average value is greater than the preset interference threshold, and further determine whether each maximum value is greater than the preset interference threshold to preliminarily and finally determine the location of the interference signal.
An exemplary illustration is as follows: for example, assuming that 10 radio frequency remote units are connected in the application system shown in fig. 1 in total, and each radio frequency remote unit reports the maximum value and the average value of power within a preset time period, the baseband unit stores the maximum value and the average value reported by each radio frequency remote unit within the preset time period, and may specifically be marked as: p _ max _ dp1, P _ max _ dp2 … P _ max _ dp 10; p _ mean _ dp1, P _ mean _ dp2 … P _ mean _ dp 10. Then the baseband unit compares the 10 maximum power values with a maximum power threshold T1, compares the 10 average power values with a preset average power threshold T2, and determines that there is interference at the location of the radio frequency remote unit if a certain maximum power value is greater than T1 or the average power value is greater than T2. Of course, other determination methods may be adopted, and this embodiment is not limited thereto. It should be noted that, in practical applications, the maximum value and/or the average value in each period may also be counted, and the maximum value and/or the average value in each period is recorded, so that the position of the interference can be more accurately determined, and the interference signal can also be continuously located.
It should be understood that although the steps in the flowcharts of fig. 2 and 6 are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and described, and may be performed in other orders, unless explicitly stated otherwise. Moreover, at least some of the steps in fig. 2 and 6 may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, and the order of performance of the sub-steps or stages is not necessarily sequential.
In one embodiment, as shown in fig. 7, there is provided an interference localization apparatus comprising: a detection module 11, a determination module 12 and a positioning module 13, wherein:
the detection module 11 is configured to detect, according to a preset physical frame format, signal powers in a plurality of uplink idle subframes of each radio frequency remote unit in a preset time period; the preset physical frame format comprises at least one uplink idle subframe;
a determining module 12, configured to determine a maximum value and/or an average value of signal power in a plurality of uplink idle subframes of each radio frequency remote unit;
and a positioning module 13, configured to position the interference signal according to each maximum value and/or average value.
In an embodiment, the physical frame format is used to instruct the UE to stop uploading first traffic data in at least one of the uplink idle subframes; the first traffic data comprises traffic data transmitted on a physical access channel, PRACH.
In an embodiment, the above physical frame format is used to instruct the UE to stop uploading channel state information CSI in at least one of the uplink idle subframes.
In an embodiment, the physical frame format is used to instruct a base station to stop transmitting scheduling information to the UE in a transmitted subframe, where the scheduling information is used to instruct the UE to upload second service data in at least one uplink idle subframe; the second traffic data comprises traffic data transmitted on a shared channel, PUSCH.
In an embodiment, the physical frame format is further configured to instruct the base station to send a retransmission stop instruction to the UE in a downlink subframe, where the retransmission stop instruction is used to instruct the UE to stop retransmitting the second service data in at least one uplink idle subframe.
In one embodiment, as shown in fig. 8, the positioning module 13 includes:
a counting unit 131, where each radio frequency remote unit is configured to send a maximum value and/or an average value of signal powers in the uplink idle subframes in the preset time period to the baseband unit;
and a positioning unit 132, configured to determine, as the location of the interference signal, the location of the radio frequency remote unit corresponding to the maximum value and/or the average value greater than the preset interference threshold.
For the specific definition of the interference localization means, reference may be made to the above definition of an interference localization method, which is not described herein again. The various modules in the interference localization apparatus described above may be implemented in whole or in part by software, hardware, and combinations thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In one embodiment, a computer device is provided, which may be a user terminal, and its internal structure diagram may be as shown in fig. 9. The computer device includes a processor, a memory, a network interface, a display screen, and an input device connected by a system bus. Wherein the processor of the computer device is configured to provide computing and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The network interface of the computer device is used for communicating with an external user terminal through network connection. The computer program is executed by a processor to implement an interference localization method. The display screen of the computer equipment can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer equipment can be a touch layer covered on the display screen, a key, a track ball or a touch pad arranged on the shell of the computer equipment, an external keyboard, a touch pad or a mouse and the like.
Those skilled in the art will appreciate that the architecture shown in fig. 9 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, a computer device is provided, comprising a memory and a processor, the memory having a computer program stored therein, the processor implementing the following steps when executing the computer program:
detecting signal power in a plurality of uplink idle subframes of each radio frequency remote unit in a preset time period according to a preset physical frame format; the preset physical frame format comprises at least one uplink idle subframe;
determining the maximum value and/or the average value of signal power in a plurality of uplink idle subframes of each radio frequency remote unit;
and positioning the interference signal according to each maximum value and/or average value.
The implementation principle and technical effect of the computer device provided by the above embodiment are similar to those of the above method embodiment, and are not described herein again.
In one embodiment, a computer-readable storage medium is provided, having a computer program stored thereon, the computer program, when executed by a processor, further implementing the steps of:
detecting signal power in a plurality of uplink idle subframes of each radio frequency remote unit in a preset time period according to a preset physical frame format; the preset physical frame format comprises at least one uplink idle subframe;
determining the maximum value and/or the average value of signal power in a plurality of uplink idle subframes of each radio frequency remote unit;
and positioning the interference signal according to each maximum value and/or average value.
The implementation principle and technical effect of the computer-readable storage medium provided by the above embodiments are similar to those of the above method embodiments, and are not described herein again.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), synchronous Link (Synchlink) DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and bus dynamic RAM (RDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. An interference localization method, comprising:
detecting signal power in a plurality of uplink idle subframes of each radio frequency remote unit in a preset time period according to a preset physical frame format; the preset physical frame format comprises at least one uplink idle subframe; the uplink idle subframe does not transmit any service data uploaded by the UE; the physical frame format is a physical frame format which is obtained by a base station through configuring cell parameters and UE parameters in advance and is used for detecting interference signals;
determining the maximum value and/or the average value of signal power in a plurality of uplink idle subframes of each radio frequency remote unit;
and positioning the interference signal according to each maximum value and/or average value.
2. The method of claim 1, wherein the physical frame format is used to instruct the UE to stop uploading first traffic data in at least one of the uplink idle subframes; the first traffic data comprises traffic data transmitted on a physical access channel, PRACH.
3. The method according to claim 1 or 2, wherein the physical frame format is used to instruct the UE to stop uploading channel state information, CSI, in at least one of the uplink idle subframes.
4. The method according to claim 3, wherein the physical frame format is used to instruct the UE to stop uploading Scheduling Requests (SRs) in at least one of the uplink idle frames.
5. The method of claim 4, wherein the physical frame format is used to instruct a base station to stop sending scheduling information to the UE in a sent-down subframe, and the scheduling information is used to instruct the UE to upload second traffic data in at least one uplink idle subframe; the second traffic data comprises traffic data transmitted on a shared channel, PUSCH.
6. The method of claim 4, wherein the physical frame format is further used to instruct a base station to send a retransmission stop instruction to the UE in a downlink subframe, and the retransmission stop instruction is used to instruct the UE to stop retransmitting the second service data in at least one uplink idle subframe.
7. The method of claim 1, wherein the base station comprises a baseband unit and the rf remote unit, and wherein locating the interfering signal according to each of the maximum values and/or average values comprises:
each radio frequency remote unit sends the maximum value and/or the average value of the signal power in the plurality of uplink idle subframes in the preset time period to the baseband unit;
and the baseband unit determines the position of the radio frequency far-end unit corresponding to the maximum value and/or the average value which is greater than the preset interference threshold value as the position of the interference signal.
8. An interference localization apparatus, the apparatus comprising:
the detection module is used for detecting the signal power in a plurality of uplink idle subframes of each radio frequency remote unit in a preset time period according to a preset physical frame format; the preset physical frame format comprises at least one uplink idle subframe; the uplink idle subframe does not transmit any service data uploaded by the UE; the physical frame format is a physical frame format which is obtained by a base station through configuring cell parameters and UE parameters in advance and is used for detecting interference signals;
a determining module, configured to determine a maximum value and/or an average value of signal power in a plurality of uplink idle subframes of each radio frequency remote unit;
and the positioning module is used for positioning the interference signal according to each maximum value and/or average value.
9. A computer device comprising a memory and a processor, the memory storing a computer program, wherein the processor implements the steps of the method of any one of claims 1 to 7 when executing the computer program.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 7.
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| CN114125913B (en) * | 2021-11-08 | 2023-12-08 | 中信科移动通信技术股份有限公司 | Distributed pico-base station interference positioning method and system |
| CN114465644A (en) * | 2021-12-31 | 2022-05-10 | 华为技术有限公司 | Interference avoidance method, device and system |
| CN115333655B (en) * | 2022-10-10 | 2024-03-26 | 华安中云股份有限公司 | Method and device for automatically detecting interference, knapsack base station and storage medium |
| CN117812617B (en) * | 2024-02-23 | 2024-05-07 | 山东浪潮数据库技术有限公司 | Method for identifying subnet interference in wireless ad hoc network |
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