CN106559817B - Cell interference detection method and device - Google Patents
Cell interference detection method and device Download PDFInfo
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- CN106559817B CN106559817B CN201510634350.8A CN201510634350A CN106559817B CN 106559817 B CN106559817 B CN 106559817B CN 201510634350 A CN201510634350 A CN 201510634350A CN 106559817 B CN106559817 B CN 106559817B
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- H04W24/02—Arrangements for optimising operational condition
Abstract
The invention provides a cell interference detection method and a device, wherein the method comprises the following steps: receiving a detection task, wherein the detection task at least carries the following information: cell identification, detection mode and reporting period of a cell to be detected; acquiring interference data detected by a radio bearer corresponding to a cell to be detected according to a detection mode; and reporting the interference data according to a reporting period to obtain the interference position of the cell to be detected. The invention solves the problem of lower detection accuracy caused by the existing detection mode, and further achieves the effect of detecting the uplink interference in the cell from different dimensions on the premise of not influencing the cell service.
Description
Technical Field
The invention relates to the field of communication, in particular to a cell interference detection method and a cell interference detection device.
Background
In communication equipment, uplink interference is a very critical problem affecting equipment stability, and affecting user call completing rate and service quality. Therefore, how to quickly and conveniently locate the interference position of the cell interference is a great concern for many operators and after-sales maintenance.
At present, in the existing interference detection device, a background generally designates a frequency sweeping range, and interference detection is performed on different frequency bands by continuously moving frequency points of frequency sweeping. However, in this way, the normal communication service of the cell will be inevitably affected. Furthermore, since the detection method is single, accurate detection cannot be performed for different dimensions. Thus, there may be a problem that the accuracy of the detection result is low.
In view of the problems set forth above, no effective solution has been proposed.
Disclosure of Invention
The invention provides a cell interference detection method and a cell interference detection device, which at least solve the problem of low detection accuracy caused by the existing detection mode in the related art.
According to an aspect of the present invention, a cell interference detection method is provided, including: receiving a detection task, wherein the detection task at least carries the following information: cell identification, detection mode and reporting period of a cell to be detected; acquiring interference data detected by a radio bearer corresponding to the cell to be detected according to the detection mode; and reporting the interference data according to the reporting period to obtain the interference position of the cell to be detected.
Optionally, the obtaining interference data detected by the radio bearer corresponding to the cell to be detected according to the detection mode includes: acquiring interference data detected by the radio bearer on a target uplink subframe according to the detection mode at intervals of a preset transmission interval, wherein the radio bearer comprises N uplink subframes within each preset transmission interval, N is greater than or equal to 1, and the uplink subframes transmitted on the radio bearer comprise: and the target uplink subframe.
Optionally, the obtaining, at every predetermined transmission interval, interference data detected by the radio bearer on the target uplink subframe according to the detection mode includes: and acquiring the interference data detected by the radio bearer on the ith uplink subframe every the predetermined transmission interval in each reporting period, wherein i is more than or equal to 1 and less than or equal to N.
Optionally, the obtaining, at every predetermined transmission interval, interference data detected by the radio bearer on the target uplink subframe according to the detection mode includes: and acquiring the interference data detected by the radio bearer on the same preset uplink subframe every the preset transmission interval in each reporting period, wherein the preset uplink subframes in two adjacent reporting periods are different.
Optionally, the predetermined uplink subframes in the two adjacent reporting periods are different from each other by: and under the condition that the preset uplink subframe in the current reporting period is the jth uplink subframe, the preset uplink subframe in the next reporting period adjacent to the current reporting period is the (j + 1)% N uplink subframe, wherein j is more than or equal to 1 and less than or equal to N.
Optionally, the obtaining, at every predetermined transmission interval, interference data detected by the radio bearer on the target uplink subframe according to the detection mode includes: and acquiring the interference data detected by the radio bearer on the same preset multiple uplink subframes every the preset transmission interval in each reporting period.
Optionally, the obtaining, in each reporting period, interference data detected by the radio bearer on the same predetermined multiple uplink subframes at every predetermined transmission interval includes: and acquiring the interference data detected by the radio bearer on all the N uplink subframes every the preset transmission interval in each reporting period.
Optionally, the reporting the interference data according to the reporting period to obtain the interference position of the cell to be detected includes: and when the reporting time indicated by the reporting period is reached, reporting the maximum value and the average value of the interference data acquired on each radio bearer in the reporting period as reported interference data.
Optionally, the interference data includes: interference NI value of uplink subframe.
According to another aspect of the present invention, there is provided a cell interference detecting apparatus, including: a receiving unit, configured to receive a detection task, where the detection task at least carries the following information: cell identification, detection mode and reporting period of a cell to be detected; an obtaining unit, configured to obtain interference data detected by a radio bearer corresponding to the cell to be detected according to the detection mode; and a reporting unit, configured to report the interference data according to the reporting period, so as to obtain an interference location of the cell to be detected.
Optionally, the obtaining unit includes: an obtaining module, configured to obtain, at intervals of a predetermined transmission interval, interference data detected by the radio bearer on a target uplink subframe according to the detection mode, where the radio bearer includes N uplink subframes in each predetermined transmission interval, N is greater than or equal to 1, and the uplink subframe transmitted on the radio bearer includes: and the target uplink subframe.
Optionally, the obtaining module includes: and a first obtaining submodule, configured to obtain, in each reporting period, interference data detected by the radio bearer on an ith uplink subframe every the predetermined transmission interval, where i is greater than or equal to 1 and is less than or equal to N.
Optionally, the obtaining module includes: and a second obtaining sub-module, configured to obtain, in each reporting period, interference data detected by the radio bearer on the same predetermined uplink subframe every other predetermined transmission interval, where the predetermined uplink subframes in two adjacent reporting periods are different.
Optionally, the predetermined uplink subframes in the two adjacent reporting periods are different from each other by: and under the condition that the preset uplink subframe in the current reporting period is the jth uplink subframe, the preset uplink subframe in the next reporting period adjacent to the current reporting period is the (j + 1)% N uplink subframe, wherein j is more than or equal to 1 and less than or equal to N.
Optionally, the obtaining module includes: and a third obtaining sub-module, configured to obtain, in each reporting period, interference data detected by the radio bearer on the same predetermined multiple uplink subframes at every predetermined transmission interval.
Optionally, the obtaining, by the third obtaining sub-module, interference data detected by the radio bearer on the same predetermined multiple uplink subframes every other predetermined transmission interval in each reporting period includes:
and acquiring the interference data detected by the radio bearer on all the N uplink subframes every the preset transmission interval in each reporting period.
Optionally, the reporting unit includes: and a reporting module, configured to report, when the reporting time indicated by the reporting period arrives, the maximum value and the average value of the interference data acquired on each radio bearer in the reporting period as reported interference data.
Optionally, the interference data includes: interference NI value of uplink subframe.
According to the invention, after the detection task is received, the interference data detected by the radio bearer corresponding to the cell to be detected indicated by the detection task according to the detection mode is obtained, so that the corresponding interference data is obtained aiming at different dimensionalities, and therefore, when the interference data is reported according to the reporting period, the problems of lower detection accuracy caused by the fact that the detection mode adopted in the prior art is single and the accurate detection cannot be carried out aiming at the time and space dimensionality can be solved, and further, the uplink interference in the cell can be detected from different dimensionalities on the premise of not influencing the cell service.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a flow chart of an alternative cell interference detection method according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating an application of an alternative cell interference detection method according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a detection mode of an alternative cell interference detection method according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a detection mode of another alternative cell interference detection method according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a detection mode of another alternative cell interference detection method according to an embodiment of the present invention;
fig. 6 is a schematic diagram of an alternative cell interference detection apparatus according to an embodiment of the present invention; and
fig. 7 is a schematic diagram of another alternative cell interference detection apparatus according to an embodiment of the present invention.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
Example 1
In this embodiment, a method for detecting cell interference is provided, and fig. 1 is a flowchart of a method for detecting cell interference according to an embodiment of the present invention, as shown in fig. 1, the flowchart includes the following steps:
step S102, receiving a detection task, wherein the detection task at least carries the following information: cell identification, detection mode and reporting period of a cell to be detected;
step S104, acquiring interference data detected by a radio bearer corresponding to a cell to be detected according to a detection mode;
and step S106, reporting the interference data according to the reporting period to obtain the interference position of the cell to be detected.
Optionally, in this embodiment, the cell interference detection method may be applied to, but not limited to, a Time Division Duplex (TDD) system, perform uplink interference detection in a cell, and report interference data obtained by the detection to a network manager, so that the network manager displays the reported interference data to a user in a data or graphic manner, so as to perform interference analysis on the user, thereby accurately finding an interference position where interference occurs in a cell uplink transmission process. Optionally, in this embodiment, the interference data may include, but is not limited to: interference (NI, Noise Interference) value of uplink subframe. The gateway includes an Operation and Maintenance Center (OMC).
Specifically, an Operations, Maintenance and Administration (OAM) center may receive, but is not limited to receiving, a detection task on a task channel provided by the OMC, where the detection task may include, but is not limited to: cell identification, detection mode and reporting period of the cell to be detected. After the OAM obtains the interference data from the physical layer (PHY) side according to the indication of the detection mode to the appointed cell to be detected according to the detection task, when the reporting time indicated by the reporting period is reached, the obtained interference data is reported so that the user can analyze the interference position.
Optionally, in this embodiment, the detection mode is used to acquire corresponding interference data from different dimensions, where the detection mode may include, but is not limited to, at least one of the following: fixed sweep, polling sweep, total sweep. The frequency sweep may be a frequency spectrum sweep, which is a method for locating the uplink interference position.
It should be noted that the fixed frequency sweep is used for sweeping a frequency of a designated subframe of a designated cell; polling sweep frequency, which is used for sweeping frequency of all subframes of a designated cell and reporting the frequency in sequence; and all frequency sweeping is used for sweeping the frequency of the designated cell without distinguishing subframes. The above is merely an example, and the present embodiment is not limited to this.
Optionally, in this embodiment, the radio bearer corresponding to the cell to be detected may include, but is not limited to: one or more Radio Bearers (RBs) for each radio bearer. It should be noted that the interference data on the RB may be, but is not limited to, buffered on the PHY side, that is, the interference data of the corresponding RB may be read from the buffer of the target uplink subframe on the PHY side. The target uplink subframe may be, but is not limited to, an uplink subframe for performing frequency sweep detection indicated by the detection mode.
Optionally, in this embodiment, the interference data reported according to the reporting period may be, but is not limited to, a maximum value and/or an average value of the interference NI value.
Specifically, as described with reference to fig. 2, the OMC 202 provides a frequency scanning interface for setting a detection task, so that a user can set information of the detection task, such as a cell identifier (i.e., a cell ID) of a cell to be detected, a detection mode, and a reporting period. Further, as shown in step S202 in fig. 2, the OMC 202 issues a detection task to the base station OAM 204, and then the base station OAM 204 forwards the detection task to the baseband module 206, as shown in step S204. After receiving the detection task, the baseband module 206 parses the cell ID, the detection mode, and the reporting period from the detection task, and starts to acquire the interference data, which is acquired by the radio bearer corresponding to the cell to be detected according to the detection mode, from the interference buffer of the PHY 208 on the cell to be detected in step S206. When the reporting time of the reporting period is reached, the baseband module 206 reports the acquired interference data to the OMC 202, in step S208. And after receiving the interference data, the OMC caches the data according to a reporting format. If the user selects the graphical presentation, the OMC graphically presents the acquired interference data. For example, the horizontal axis represents RB or bin and the vertical axis represents NI.
It should be noted that, when acquiring interference data acquired by a radio bearer corresponding to a cell to be detected according to a detection mode, if the detection mode indicates a fixed frequency sweep, only NI values of all radio bearers RB of a specified uplink subframe are acquired; if the detection mode indication is polling sweep frequency, sequentially collecting all NI values of each uplink subframe in each reporting period; if the detection mode indicates full sweep, the NI value over all radio bearers RB is collected every predetermined Transmission Interval (TTI).
According to the embodiment provided by the application, after the detection task is received, the interference data detected by the radio bearer corresponding to the cell to be detected indicated by the detection task according to the detection mode is acquired, so that the corresponding interference data can be acquired aiming at different dimensionalities, and therefore when the interference data are reported according to the reporting period, the problems that the detection mode adopted in the prior art is single, and the detection accuracy is low due to the fact that accurate detection cannot be carried out aiming at time and space dimensionalities can be solved, and further the uplink interference in the cell can be detected from different dimensionalities on the premise that the cell service is not influenced.
As an optional scheme, the obtaining interference data detected by a radio bearer corresponding to a cell to be detected according to a detection mode includes:
s1, acquiring, every predetermined transmission interval, interference data detected by the radio bearer on the target uplink subframe according to the detection mode, where the radio bearer in each predetermined transmission interval includes N uplink subframes, N is greater than or equal to 1, and the uplink subframe transmitted on the radio bearer includes: and a target uplink subframe.
Optionally, in this embodiment, the predetermined transmission interval TTI may be, but is not limited to, smaller than the reporting period.
Optionally, in this embodiment, the radio bearer in each predetermined transmission interval TTI may include N uplink subframes, and interference data is collected by the N uplink subframes and is used as interference data detected by the radio bearer, so that the baseband module may read the interference data detected on a corresponding subframe from a buffer of the PHY.
It should be noted that the target uplink subframe may be, but is not limited to, corresponding to different uplink subframes according to different detection modes. For example, in a fixed sweep frequency, an uplink target uplink subframe is a designated subframe in a designated cell; in the polling sweep frequency, the target uplink subframe is a subframe corresponding to each reporting period in a specified cell, and different reporting periods correspond to different target uplink subframes; and all frequency sweeping is carried out, and the target uplink subframes are all subframes of the designated cell in different reporting periods. The above is merely an example, and the present embodiment is not limited to this.
According to the embodiment provided by the application, the interference data detected by the radio bearer on the target uplink subframe is obtained according to the detection mode at each preset transmission interval in the reporting period, so that the position of the subframe with interference is accurately positioned, and the interference position where the interference is positioned is accurately positioned.
As an optional scheme, acquiring, at every predetermined transmission interval, interference data detected by the radio bearer on the target uplink subframe according to the detection mode includes:
s1, acquiring the interference data detected by the radio bearer on the ith uplink subframe at intervals of predetermined transmission in each reporting period, wherein i is more than or equal to 1 and less than or equal to N.
Optionally, in this embodiment, the ith subframe may be, but is not limited to, a fixed subframe preconfigured in different reporting periods. That is to say, the interference data on the same subframe is obtained every predetermined transmission interval in each reporting period, so that whether the interference exists on the subframe is accurately judged.
Specifically, the following example is used for explanation, as shown in fig. 3, assuming that the cell to be detected is a 20M cell (cell ID ═ 1), i ═ 5, and the detection means is frequency sweeping, the method for detecting whether there is interference on the fixed subframe 5 in the cell is as follows:
s1, selecting a cell to be detected as a 20M cell 1 on the OMC, wherein the detection mode is fixed sweep frequency, the fixed uplink subframe is a 5 th uplink subframe, and the reporting period is 5 minutes;
s2, triggering the detection task under the OMC;
s3, after receiving the detection task forwarded by OAM, the baseband module starts to collect interference data of the cell 1;
s4, reading interference data (e.g. interference NI value) of 100 radio bearers RB from the buffer of subframe 5 of the PHY every TTI;
s5, taking the maximum value and the average value of the read interference data;
s6, when the reporting time of 5 minutes of the reporting period is reached, reporting the maximum value and the average value of each RB to the OMC, wherein the total number of the maximum value and the average value is 200;
s7, starting to collect data of the next period;
and S8, the OMC receives the data reported by the base station, caches the data and graphically displays the data according to the sub-frames.
In this example, the interference data collected in the drawing, that is, the interference data detected on the radio bearer, are expressed in the same meaning, and do not limit the present embodiment.
By the embodiment provided by the application, the cell to be detected acquires the interference data on the fixed uplink subframe according to the detection mode in different reporting periods, so that whether the fixed uplink subframe generates interference or not is accurately judged, and the accuracy of cell interference detection is improved.
As an optional scheme, acquiring, at every predetermined transmission interval, interference data detected by the radio bearer on the target uplink subframe according to the detection mode includes:
and S1, acquiring the interference data detected by the radio bearer on the same preset uplink subframe at intervals of preset transmission intervals in each reporting period, wherein the preset uplink subframes in two adjacent reporting periods are different.
Optionally, in this embodiment, the different predetermined uplink subframes in the two adjacent reporting periods include: and under the condition that the preset uplink subframe in the current reporting period is the jth uplink subframe, the preset uplink subframe in the next reporting period adjacent to the current reporting period is the (j + 1)% N uplink subframe, wherein j is more than or equal to 1 and less than or equal to N. For example, as shown in fig. 4, when the reporting time indicated by the 1 st reporting period reaches, the interference data of the 1 st uplink subframe (i.e., uplink subframe 0) are all reported, when the reporting time indicated by the 2 nd reporting period reaches, the interference data of the 2 nd uplink subframe (i.e., uplink subframe 1) are all reported, and so on, the predetermined uplink subframes in two adjacent reporting periods are different.
Specifically, the following example is combined to describe, as shown in fig. 4, assuming that the cell to be detected is a 15M cell (cell ID ═ 2), the detection means is frequency sweeping, and the method for detecting whether there is interference in the cell is as follows:
s1, selecting a cell to be detected as a 15M cell 2 on the OMC, wherein the detection mode is polling sweep frequency and the reporting period is 5 minutes;
s2, triggering the detection task under the OMC;
s3, after receiving the detection task forwarded by OAM, the baseband module starts to collect interference data of the cell 2;
s4, reading interference data (e.g., interference NI value) of 75 RBs from the buffer of subframe 0 of the PHY in the first TTI;
s5, taking the maximum value and the average value of the read interference data;
s6, when the reporting time of 5 minutes of the reporting period is reached, reporting 150 data of the maximum value and the average value of each RB to the OMC;
s7, starting the next reporting period, and performing interference data acquisition on the uplink subframe 1, where as shown in fig. 4, the polling is performed in sequence according to the subframes, each period is one subframe, and when the interference data of the uplink subframe 9 is acquired, the polling is performed from the uplink subframe 0 again;
and S8, the OMC receives the data reported by the base station, caches the data and graphically displays the data according to the sub-frames.
In this example, the interference data collected in the drawing, that is, the interference data detected on the radio bearer, are expressed in the same meaning, and do not limit the present embodiment.
According to the embodiment provided by the application, the interference data on different uplink subframes are acquired by the cell to be detected according to the detection mode in different reporting periods, so that the specific frame of the uplink subframe with interference is accurately positioned, and the effect of improving the accuracy of cell interference detection is achieved.
As an optional scheme, acquiring, at every predetermined transmission interval, interference data detected by the radio bearer on the target uplink subframe according to the detection mode includes:
s1, acquiring, every predetermined transmission interval in each reporting period, interference data detected by the radio bearer on the same predetermined multiple uplink subframes.
Optionally, in this embodiment, the obtaining, at every predetermined transmission interval in each reporting period, interference data detected by a radio bearer on a same predetermined plurality of uplink subframes includes: and acquiring the interference data detected by the radio bearer on all the N uplink subframes at a preset transmission interval in each reporting period.
Specifically, the following example is combined to describe, as shown in fig. 5, assuming that the cell to be detected is a 10M cell (cell ID ═ 3), the detection means is frequency sweeping, and the method for detecting whether there is interference in the cell is as follows:
s1, selecting a cell to be detected as a 10M cell 3 on the OMC, wherein the detection mode is all frequency sweeping and the reporting period is 5 minutes;
s2, triggering the detection task under the OMC;
s3, after receiving the detection task forwarded by OAM, the baseband module starts to collect interference data of the cell 3;
s4, reading interference data (such as interference NI values) of 50 RBs in the buffer from sub-frame 0 to sub-frame 9 of the PHY in each TTI, averaging the interference data, and taking the average value as the interference data acquired at this time;
s5, taking the maximum value and the average value of the read interference data and the interference data collected last time;
s6, when the reporting time of 5 minutes of the reporting period is reached, reporting 100 data of the maximum value and the average value of each RB to the OMC;
s7, starting the next reporting period, and continuing to read interference data (e.g., interference NI value) from the buffer of the sub-frame 0 to the sub-frame 9 of the PHY in each TTI;
and S8, after receiving the interference data reported by the base station OAM, the OMC caches the interference data and graphically displays the interference data according to the RB.
In this example, the interference data collected in the drawing, that is, the interference data detected on the radio bearer, are expressed in the same meaning, and do not limit the present embodiment.
According to the embodiment provided by the application, all interference data on different radio bearer RBs are acquired by the cell to be detected according to the detection mode in different reporting periods, so that the radio bearer RB on which interference exists is accurately positioned, and the effect of improving the accuracy of cell interference detection is achieved.
As an optional scheme, reporting the interference data according to the reporting period to obtain the interference position of the cell to be detected includes:
and S1, when the reporting time indicated by the reporting period is reached, reporting the maximum value and the average value of the interference data acquired on each radio bearer in the reporting period as the reported interference data.
Optionally, in this embodiment, the interference data may include, but is not limited to: interference NI value of uplink subframe. And taking the maximum value and the average value of the acquired interference NI values as interference data reported by each radio bearer in a reporting period.
According to the embodiment provided by the application, the maximum value and the average value of the acquired interference data are used as the reported interference data to be reported, so that the accuracy of the reported interference data is ensured.
Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
Example 2
In this embodiment, a cell interference detection apparatus is further provided, and the apparatus is used to implement the foregoing embodiments and preferred embodiments, and details of which have been already described are omitted. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 6 is a schematic diagram of a cell interference detection apparatus according to an embodiment of the present invention, as shown in fig. 6, the apparatus includes:
1) a receiving unit 602, configured to receive a detection task, where the detection task at least carries the following information: cell identification, detection mode and reporting period of a cell to be detected;
2) an obtaining unit 604, configured to obtain interference data detected by a radio bearer corresponding to a cell to be detected according to a detection mode;
3) a reporting unit 606, configured to report the interference data according to a reporting period to obtain an interference location of the cell to be detected.
Optionally, in this embodiment, the cell interference detection method may be applied to, but not limited to, a Time Division Duplex (TDD) system, perform uplink interference detection in a cell, and report interference data obtained by the detection to a network manager, so that the network manager displays the reported interference data to a user in a data or graphic manner, so as to perform interference analysis on the user, thereby accurately finding an interference position where interference occurs in a cell uplink transmission process. Optionally, in this embodiment, the interference data may include, but is not limited to: interference (NI, Noise Interference) value of uplink subframe. The gateway includes an Operation and Maintenance Center (OMC).
Specifically, an Operations, Maintenance and Administration (OAM) center may receive, but is not limited to receiving, a detection task on a task channel provided by the OMC, where the detection task may include, but is not limited to: cell identification, detection mode and reporting period of the cell to be detected. After the OAM obtains the interference data from the physical layer (PHY) side according to the indication of the detection mode to the appointed cell to be detected according to the detection task, when the reporting time indicated by the reporting period is reached, the obtained interference data is reported so that the user can analyze the interference position.
Optionally, in this embodiment, the detection mode is used to acquire corresponding interference data from different dimensions, where the detection mode may include, but is not limited to, at least one of the following: fixed sweep, polling sweep, total sweep. The frequency sweep may be a frequency spectrum sweep, which is a method for locating the uplink interference position.
It should be noted that the fixed frequency sweep is used for sweeping a frequency of a designated subframe of a designated cell; polling sweep frequency, which is used for sweeping frequency of all subframes of a designated cell and reporting the frequency in sequence; and all frequency sweeping is used for sweeping the frequency of the designated cell without distinguishing subframes. The above is merely an example, and the present embodiment is not limited to this.
Optionally, in this embodiment, the radio bearer corresponding to the cell to be detected may include, but is not limited to: one or more Radio Bearers (RBs) for each radio bearer. It should be noted that the interference data on the RB may be, but is not limited to, buffered on the PHY side, that is, the interference data of the corresponding RB may be read from the buffer of the target uplink subframe on the PHY side. The target uplink subframe may be, but is not limited to, an uplink subframe for performing frequency sweep detection indicated by the detection mode.
Optionally, in this embodiment, the interference data reported according to the reporting period may be, but is not limited to, a maximum value and/or an average value of the interference NI value.
Specifically, as described with reference to fig. 2, the OMC 202 provides a frequency scanning interface for setting a detection task, so that a user can set information of the detection task, such as a cell identifier (i.e., a cell ID) of a cell to be detected, a detection mode, and a reporting period. Further, as shown in step S202 in fig. 2, the OMC 202 issues a detection task to the base station OAM 204, and then the base station OAM 204 forwards the detection task to the baseband module 206, as shown in step S204. After receiving the detection task, the baseband module 206 parses the cell ID, the detection mode, and the reporting period from the detection task, and starts to acquire the interference data, which is acquired by the radio bearer corresponding to the cell to be detected according to the detection mode, from the interference buffer of the PHY 208 on the cell to be detected in step S206. When the reporting time of the reporting period is reached, the baseband module 206 reports the acquired interference data to the OMC 202, in step S208. And after receiving the interference data, the OMC caches the data according to a reporting format. If the user selects the graphical presentation, the OMC graphically presents the acquired interference data. For example, the horizontal axis represents RB or bin and the vertical axis represents NI.
It should be noted that, when acquiring interference data acquired by a radio bearer corresponding to a cell to be detected according to a detection mode, if the detection mode indicates a fixed frequency sweep, only NI values of all radio bearers RB of a specified uplink subframe are acquired; if the detection mode indication is polling sweep frequency, sequentially collecting all NI values of each uplink subframe in each reporting period; if the detection mode indicates full sweep, the NI value over all radio bearers RB is collected every predetermined Transmission Interval (TTI).
Through the embodiment provided by the application, after the detection task is received, the interference data detected according to the detection mode by the radio bearer corresponding to the cell to be detected indicated by the detection task is acquired, so that the corresponding interference data can be acquired aiming at different dimensionalities, and therefore when the interference data are reported according to the reporting period, the problems that the detection mode adopted in the prior art is single, and the detection accuracy is low due to the fact that accurate detection cannot be carried out aiming at the time and space dimensionalities can be solved, and the accuracy of cell interference detection is improved, so that the accurate interference position can be obtained.
As an alternative, as shown in fig. 7, the obtaining unit 604 includes:
1) an obtaining module 702, configured to obtain, every predetermined transmission interval, interference data detected by a radio bearer on a target uplink subframe according to a detection mode, where the radio bearer in each predetermined transmission interval includes N uplink subframes, N is greater than or equal to 1, and the uplink subframe transmitted on the radio bearer includes: and a target uplink subframe.
Optionally, in this embodiment, the predetermined transmission interval TTI may be, but is not limited to, smaller than the reporting period.
Optionally, in this embodiment, the radio bearer in each predetermined transmission interval TTI may include N uplink subframes, and interference data is collected by the N uplink subframes and is used as interference data detected by the radio bearer, so that the baseband module may read the interference data detected on a corresponding subframe from a buffer of the PHY.
It should be noted that the target uplink subframe may be, but is not limited to, corresponding to different uplink subframes according to different detection modes. For example, in a fixed sweep frequency, an uplink target uplink subframe is a designated subframe in a designated cell; in the polling sweep frequency, the target uplink subframe is a subframe corresponding to each reporting period in a specified cell, and different reporting periods correspond to different target uplink subframes; and all frequency sweeping is carried out, and the target uplink subframes are all subframes of the designated cell in different reporting periods. The above is merely an example, and the present embodiment is not limited to this.
According to the embodiment provided by the application, the interference data detected by the radio bearer on the target uplink subframe is obtained according to the detection mode at each preset transmission interval in the reporting period, so that the position of the subframe with interference is accurately positioned, and the interference position where the interference is positioned is accurately positioned.
As an optional solution, the obtaining module 702 includes:
1) and the first obtaining submodule is used for obtaining the interference data detected by the radio bearer on the ith uplink subframe at intervals of preset transmission intervals in each reporting period, wherein i is more than or equal to 1 and is less than or equal to N.
Optionally, in this embodiment, the ith subframe may be, but is not limited to, a fixed subframe preconfigured in different reporting periods. That is to say, the interference data on the same subframe is obtained every predetermined transmission interval in each reporting period, so that whether the interference exists on the subframe is accurately judged.
Specifically, the following example is used for explanation, as shown in fig. 3, assuming that the cell to be detected is a 20M cell (cell ID ═ 1), i ═ 5, and the detection means is frequency sweeping, the method for detecting whether there is interference on the fixed subframe 5 in the cell is as follows:
s1, selecting a cell to be detected as a 20M cell 1 on the OMC, wherein the detection mode is fixed sweep frequency, the fixed uplink subframe is a 5 th uplink subframe, and the reporting period is 5 minutes;
s2, triggering the detection task under the OMC;
s3, after receiving the detection task forwarded by OAM, the baseband module starts to collect interference data of the cell 1;
s4, reading interference data (e.g. interference NI value) of 100 radio bearers RB from the buffer of subframe 5 of the PHY every TTI;
s5, taking the maximum value and the average value of the read interference data;
s6, when the reporting time of 5 minutes of the reporting period is reached, reporting the maximum value and the average value of each RB to the OMC, wherein the total number of the maximum value and the average value is 200;
s7, starting to collect data of the next period;
and S8, the OMC receives the data reported by the base station, caches the data and graphically displays the data according to the sub-frames.
In this example, the interference data collected in the drawing, that is, the interference data detected on the radio bearer, are expressed in the same meaning, and do not limit the present embodiment.
By the embodiment provided by the application, the cell to be detected acquires the interference data on the fixed uplink subframe according to the detection mode in different reporting periods, so that whether the fixed uplink subframe generates interference or not is accurately judged, and the accuracy of cell interference detection is improved.
As an optional solution, the obtaining module 702 includes:
1) and the second obtaining submodule is used for obtaining the interference data detected by the radio bearer on the same preset uplink subframe at intervals of preset transmission intervals in each reporting period, wherein the preset uplink subframes in two adjacent reporting periods are different.
Optionally, in this embodiment, the different predetermined uplink subframes in the two adjacent reporting periods include: and under the condition that the preset uplink subframe in the current reporting period is the jth uplink subframe, the preset uplink subframe in the next reporting period adjacent to the current reporting period is the (j + 1)% N uplink subframe, wherein j is more than or equal to 1 and less than or equal to N. For example, as shown in fig. 4, when the reporting time indicated by the 1 st reporting period reaches, the interference data of the 1 st uplink subframe (i.e., uplink subframe 0) are all reported, when the reporting time indicated by the 2 nd reporting period reaches, the interference data of the 2 nd uplink subframe (i.e., uplink subframe 1) are all reported, and so on, the predetermined uplink subframes in two adjacent reporting periods are different.
Specifically, the following example is combined to describe, as shown in fig. 4, assuming that the cell to be detected is a 15M cell (cell ID ═ 2), the detection means is frequency sweeping, and the method for detecting whether there is interference in the cell is as follows:
s1, selecting a cell to be detected as a 15M cell 2 on the OMC, wherein the detection mode is polling sweep frequency and the reporting period is 5 minutes;
s2, triggering the detection task under the OMC;
s3, after receiving the detection task forwarded by OAM, the baseband module starts to collect interference data of the cell 2;
s4, reading interference data (e.g., interference NI value) of 75 RBs from the buffer of subframe 0 of the PHY in the first TTI;
s5, taking the maximum value and the average value of the read interference data;
s6, when the reporting time of 5 minutes of the reporting period is reached, reporting 150 data of the maximum value and the average value of each RB to the OMC;
s7, starting the next reporting period, and performing interference data acquisition on the uplink subframe 1, where as shown in fig. 4, the polling is performed in sequence according to the subframes, each period is one subframe, and when the interference data of the uplink subframe 9 is acquired, the polling is performed from the uplink subframe 0 again;
and S8, the OMC receives the data reported by the base station, caches the data and graphically displays the data according to the sub-frames.
In this example, the interference data collected in the drawing, that is, the interference data detected on the radio bearer, are expressed in the same meaning, and do not limit the present embodiment.
According to the embodiment provided by the application, the interference data on different uplink subframes are acquired by the cell to be detected according to the detection mode in different reporting periods, so that the specific frame of the uplink subframe with interference is accurately positioned, and the effect of improving the accuracy of cell interference detection is achieved.
As an optional solution, the obtaining module 702 includes:
1) and the third obtaining submodule is used for obtaining the interference data detected by the radio bearer on the same preset multiple uplink subframes at intervals of preset transmission intervals in each reporting period.
Optionally, in this embodiment, the obtaining, by the third obtaining sub-module, interference data detected by the radio bearer on the same predetermined multiple uplink subframes at every predetermined transmission interval in each reporting period includes: and acquiring the interference data detected by the radio bearer on all the N uplink subframes at a preset transmission interval in each reporting period.
Specifically, the following example is combined to describe, as shown in fig. 5, assuming that the cell to be detected is a 10M cell (cell ID ═ 3), the detection means is frequency sweeping, and the method for detecting whether there is interference in the cell is as follows:
s1, selecting a cell to be detected as a 10M cell 3 on the OMC, wherein the detection mode is all frequency sweeping and the reporting period is 5 minutes;
s2, triggering the detection task under the OMC;
s3, after receiving the detection task forwarded by OAM, the baseband module starts to collect interference data of the cell 3;
s4, reading interference data (such as interference NI values) of 50 RBs in the buffer from sub-frame 0 to sub-frame 9 of the PHY in each TTI, averaging the interference data, and taking the average value as the interference data acquired at this time;
s5, taking the maximum value and the average value of the read interference data and the interference data collected last time;
s6, when the reporting time of 5 minutes of the reporting period is reached, reporting 100 data of the maximum value and the average value of each RB to the OMC;
s7, starting the next reporting period, and continuing to read interference data (e.g., interference NI value) from the buffer of the sub-frame 0 to the sub-frame 9 of the PHY in each TTI;
and S8, after receiving the interference data reported by the base station OAM, the OMC caches the interference data and graphically displays the interference data according to the RB.
In this example, the interference data collected in the drawing, that is, the interference data detected on the radio bearer, are expressed in the same meaning, and do not limit the present embodiment.
According to the embodiment provided by the application, all interference data on different radio bearer RBs are acquired by the cell to be detected according to the detection mode in different reporting periods, so that the radio bearer RB on which interference exists is accurately positioned, and the effect of improving the accuracy of cell interference detection is achieved.
As an optional scheme, the reporting unit 606 includes:
1) and the reporting module is used for reporting the maximum value and the average value of the interference data acquired on each radio bearer in the reporting period as the reported interference data when the reporting time indicated by the reporting period is reached.
Optionally, in this embodiment, the interference data may include, but is not limited to: interference NI value of uplink subframe. And taking the maximum value and the average value of the acquired interference NI values as interference data reported by each radio bearer in a reporting period.
According to the embodiment provided by the application, the maximum value and the average value of the acquired interference data are used as the reported interference data to be reported, so that the accuracy of the reported interference data is ensured.
It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are respectively located in a plurality of processors.
Example 3
The embodiment of the invention also provides a storage medium. Alternatively, in the present embodiment, the storage medium may be configured to store program codes for performing the following steps:
s1, receiving a detection task, wherein the detection task at least carries the following information: cell identification, detection mode and reporting period of a cell to be detected;
s2, acquiring interference data detected by a radio bearer corresponding to a cell to be detected according to a detection mode;
and S3, reporting the interference data according to the reporting period to obtain the interference position of the cell to be detected.
Optionally, in this embodiment, the storage medium may include, but is not limited to: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
Optionally, for specific examples in this embodiment, reference may be made to the examples described in embodiment 1 and embodiment 2 and their optional implementations, which are not described herein again.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (16)
1. A method for cell interference detection, comprising:
receiving a detection task, wherein the detection task at least carries the following information: cell identification, detection mode and reporting period of a cell to be detected;
acquiring interference data detected by a radio bearer corresponding to the cell to be detected on a target uplink subframe according to the detection mode at intervals of a preset transmission interval, wherein the interference data comprises the following steps: acquiring interference data detected by the radio bearer on the same preset uplink subframe every other preset transmission interval in each reporting period, wherein the preset uplink subframes in two adjacent reporting periods are different;
and reporting the interference data according to the reporting period to obtain the interference position of the cell to be detected.
2. The method according to claim 1, wherein the obtaining of the interference data detected by the radio bearer corresponding to the cell to be detected on the target uplink subframe according to the detection mode is performed at intervals of a predetermined transmission interval, where the radio bearer includes N uplink subframes in each predetermined transmission interval, N is greater than or equal to 1, and the uplink subframe transmitted on the radio bearer includes: and the target uplink subframe.
3. The method of claim 1, wherein the obtaining, at every predetermined transmission interval, interference data detected by the radio bearer corresponding to the cell to be detected on a target uplink subframe according to the detection mode comprises:
and acquiring the interference data detected by the radio bearer on the ith uplink subframe every other predetermined transmission interval in each reporting period, wherein i is more than or equal to 1 and less than or equal to N.
4. The method according to claim 1, wherein the different predetermined uplink subframes in the two adjacent reporting periods comprise:
and under the condition that the preset uplink subframe in the current reporting period is the jth uplink subframe, the preset uplink subframe in the next reporting period adjacent to the current reporting period is the (j + 1)% N uplink subframe, wherein j is more than or equal to 1 and less than or equal to N.
5. The method of claim 1, wherein the obtaining, at every predetermined transmission interval, interference data detected by the radio bearer corresponding to the cell to be detected on a target uplink subframe according to the detection mode comprises:
and acquiring the interference data detected by the radio bearer on the same preset multiple uplink subframes every other preset transmission interval in each reporting period.
6. The method of claim 5, wherein obtaining the interference data detected by the radio bearer on the same predetermined multiple uplink subframes at every predetermined transmission interval in each reporting period comprises:
and acquiring the interference data detected by the radio bearer on all the N uplink subframes every other predetermined transmission interval in each reporting period.
7. The method according to any one of claims 1 to 6, wherein the reporting the interference data according to the reporting period to obtain the interference location of the cell to be detected comprises:
and when the reporting time indicated by the reporting period is reached, reporting the maximum value and the average value of the interference data acquired on each radio bearer in the reporting period as reported interference data.
8. The method of any of claims 1-6, wherein the interference data comprises: interference NI value of uplink subframe.
9. A cell interference detecting apparatus, comprising:
a receiving unit, configured to receive a detection task, where the detection task at least carries the following information: cell identification, detection mode and reporting period of a cell to be detected;
an obtaining module, configured to obtain, every predetermined transmission interval, interference data detected by a radio bearer corresponding to the cell to be detected on a target uplink subframe according to the detection mode, where the obtaining module includes a second obtaining submodule, configured to obtain, every predetermined transmission interval in each reporting period, interference data detected by the radio bearer on the same predetermined uplink subframe, where the predetermined uplink subframes in two adjacent reporting periods are different;
and a reporting unit, configured to report the interference data according to the reporting period, so as to obtain an interference position of the cell to be detected.
10. The apparatus of claim 9, wherein the obtaining module is configured to obtain the interference data detected by the radio bearer on the target uplink subframe according to the detection pattern every predetermined transmission interval, where the radio bearer includes N uplink subframes in each predetermined transmission interval, N is greater than or equal to 1, and the uplink subframes transmitted on the radio bearer include: and the target uplink subframe.
11. The apparatus of claim 10, wherein the obtaining module comprises:
and the first obtaining submodule is used for obtaining the interference data detected by the radio bearer on the ith uplink subframe every the predetermined transmission interval in each reporting period, wherein i is more than or equal to 1 and is less than or equal to N.
12. The apparatus of claim 11, wherein the different predetermined uplink subframes in the two adjacent reporting periods comprise:
and under the condition that the preset uplink subframe in the current reporting period is the jth uplink subframe, the preset uplink subframe in the next reporting period adjacent to the current reporting period is the (j + 1)% N uplink subframe, wherein j is more than or equal to 1 and less than or equal to N.
13. The apparatus of claim 9, wherein the obtaining module comprises:
and a third obtaining sub-module, configured to obtain, in each reporting period, interference data detected by the radio bearer on the same predetermined multiple uplink subframes every other predetermined transmission interval.
14. The apparatus according to claim 13, wherein the third obtaining sub-module obtains the interference data detected by the radio bearer on the same predetermined multiple uplink subframes every other predetermined transmission interval in each reporting period by:
and acquiring the interference data detected by the radio bearer on all the N uplink subframes every other predetermined transmission interval in each reporting period.
15. The apparatus according to any of claims 9 to 14, wherein the reporting unit comprises:
and a reporting module, configured to report, when the reporting time indicated by the reporting period arrives, the maximum value and the average value of the interference data acquired on each radio bearer in the reporting period as reported interference data.
16. The apparatus of any of claims 9-14, wherein the interference data comprises: interference NI value of uplink subframe.
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| PCT/CN2016/076538 WO2016177122A1 (en) | 2015-09-29 | 2016-03-16 | Small cell interference detection method and apparatus |
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| CN102468927B (en) * | 2010-11-15 | 2014-04-30 | 华为技术有限公司 | Method, equipment and system for reporting signal channel state |
| CN102368697B (en) * | 2011-09-30 | 2018-04-03 | 中兴通讯股份有限公司 | Interferometry signals, interferometry and feedback method and its device |
| US9398480B2 (en) * | 2012-11-02 | 2016-07-19 | Telefonaktiebolaget L M Ericsson (Publ) | Methods of obtaining measurements in the presence of strong and/or highly varying interference |
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