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CN104581790B - A kind of interruption detection method and device of low-power wireless access node - Google Patents

A kind of interruption detection method and device of low-power wireless access node Download PDF

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Publication number
CN104581790B
CN104581790B CN201510062420.7A CN201510062420A CN104581790B CN 104581790 B CN104581790 B CN 104581790B CN 201510062420 A CN201510062420 A CN 201510062420A CN 104581790 B CN104581790 B CN 104581790B
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Prior art keywords
abn
information
small cell
user terminal
node
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CN104581790A (en
Inventor
滕颖蕾
满毅
宋梅
张勇
郭达
王莉
冯琬蓉
刘梦婷
马跃
刘宁宁
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Beijing University of Posts and Telecommunications
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Beijing University of Posts and Telecommunications
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention discloses a kind of interruption detection method and device of low-power wireless access node, wherein, the above method includes：Acquisition is designated as SCabnThe small cell in abnormality nodal information；According to the nodal information and default node selection algorithm obtained, in the small cell that current macrocell is included, it is determined that and SCabnNeighbouring small cell；Abnormal information is sent to identified small cell；SC status information of equipment that small cell determined by reception are sent, the small cell institutes served user terminals equipment；Obtain the MC status information of equipment of current macrocell institutes served user terminals equipment；According to above-mentioned each correlation information, SC is detectedabnWhether interrupt.Using scheme provided in an embodiment of the present invention, cost on network communication can be reduced.

Description

Interrupt detection method and device for low-power wireless access node
Technical Field
The present invention relates to the field of mobile communications technologies, and in particular, to a method and an apparatus for detecting an interruption of a low power wireless access node.
Background
As the performance of the mobile terminal becomes stronger, the demand of the user for communication and access to the mobile network through the mobile terminal becomes stronger, and therefore, in the cellular heterogeneous network, if a high-quality communication service can be provided for the mobile terminal, better user experience is undoubtedly brought to the user.
In a cellular heterogeneous network, one macro cell includes a plurality of small cells (low power radio access nodes), so that the number of small cells in the cellular heterogeneous network is large, and the probability of interruption of the small cells is increased, which may seriously affect communication quality.
In practical application, in order to ensure the communication quality, the macrocell needs to detect the small cell which is interrupted in time and perform corresponding processing on the small cell. In the prior art, when a macro cell detects whether a small cell is interrupted, correlation between user terminal equipment served by each small cell in the current macro cell and a plurality of small cells around the small cell needs to be obtained, and the small cell interrupted in the current macro cell is detected according to the obtained correlation. In this case, the amount of information required to be obtained by the macro cell is large, which increases the overhead of network communication, and in addition, all small cells in the macro cell need to feed back information to the macro cell, thereby reducing the service performance of the small cells.
Disclosure of Invention
The embodiment of the invention discloses a terminal detection method and a terminal detection device of a low-power wireless access node, which are used for reducing the cost of network communication and improving the service performance of a small cell.
In order to achieve the above object, an embodiment of the present invention discloses an interruption detection method for a low power wireless access node, which is applied to a macro cell, where one macro cell includes a plurality of low power wireless access node small cells, and the method includes:
is obtained as SCabnNode information of the small cell in the abnormal state;
according to the obtained node information and a preset node selection algorithm, determining the SC in the smallcell contained in the current macrocellabnA neighboring small cell;
sending abnormal information to the determined small cell, wherein the abnormal information comprises: the SCabnNode information of (2);
receiving SC equipment state information of user terminal equipment served by the small cell, which is sent by the determined small cell, wherein the SC equipment state information carries the user terminal equipment served by the determined small cell and the SCabnCorrelation information between;
obtaining MC device state information of user terminal devices served by a current macro cell, wherein the MC device state information comprises: user terminal equipment of current macro cell service and SCabnCorrelation information between;
detecting the SC according to the correlation information carried in the SC equipment state information and the correlation information included in the MC equipment state informationabnWhether an interrupt occurs.
In a specific implementation manner of the present invention, the obtaining is recorded as SCabnThe node information of the smallcell in the abnormal state comprises the following steps:
receiving node correlation information sent by user terminal equipment, wherein the node correlation information comprises: the correlation information between the user terminal equipment and each small cell adjacent to the user terminal equipment;
determining that a small cell corresponding to the node correlation satisfying the following relational expression in the node correlation information is an abnormal small cell, and recording the abnormal small cell as: SC (Single chip computer)abn，
|Rc-Rd|>Th1
Wherein R iscMarking the user terminal equipment contained in the node correlation information and one adjacent to the user terminal equipment as SCaR, the correlation information between small cellsdThe user terminal equipment recorded in a preset database and the SCaCorrelation information between, Th1Is a preset first threshold value;
obtaining the SCabnNode information of (2).
In a specific implementation manner of the present invention, the obtaining is recorded as SCabnThe node information of the smallcell in the abnormal state comprises the following steps:
receiving a small cell sent by a user terminal device and recorded as SCabnNode information of the small cell in the abnormal state;
wherein, the small cell providing service for the user terminal equipment obtains the SC by the following modeabnNode information of (2):
receiving node correlation information sent by user terminal equipment by a small cell providing service for the user terminal equipment, wherein the node correlation information comprises: the correlation information between the user terminal equipment and each small cell adjacent to the user terminal equipment;
determining that a small cell corresponding to the node correlation satisfying the following relational expression in the node correlation information is an abnormal small cell, and recording the abnormal small cell as: SC (Single chip computer)abn，
|Rc-Rd|>Th2
Wherein R iscMarking the user terminal equipment contained in the node correlation information and one adjacent to the user terminal equipment as SCaR, the correlation information between small cellsdThe user terminal equipment recorded in a preset database and the SCaCorrelation information between, Th2Is a preset second threshold value;
obtaining the SCabnNode information of (2).
In a specific implementation manner of the present invention, the SC is determined in a small cell included in the current macro cell according to the obtained node information and a preset node selection algorithmabnA neighboring small cell comprising:
the small cells contained in the current macro cell are connected with the SC according to each small cellabnThe distances between the two are sorted from near to far;
determining a first preset number of small cells ranked at the top as the SCabnA neighboring small cell.
In a specific implementation manner of the present invention, the SC is detected according to the correlation information carried in the SC device status information and the correlation information included in the MC device status informationabnWhether an interrupt occurs, including:
the correlation information carried in the SC equipment state information is processedAnd the related information included in the MC equipment state information according to the geographical position of the user terminal equipment and the SCabnThe distances between the two are sorted from near to far;
according to a second preset number of user terminal equipment and the SC which are ranked in the frontabnDetecting the SCabnWhether an interrupt occurs.
In a specific implementation manner of the present invention, the second preset number of user terminal devices and the SC are sorted in the top orderabnDetecting the SCabnWhether an interrupt occurs, including:
according to a second preset number of user terminal equipment and the SC which are ranked in the frontabnThe correlation between the SCs is calculatedabnWherein the likelihood ratio is used to represent PraAnd PrnRatio between, PraFor representing user terminal and the SCabnThe value of the correlation between them is at the SCabnProbability of occurrence in abnormal state, PrnFor representing user terminal and the SCabnThe value of the correlation between them is at the SCabnProbability of occurrence in a normal state;
judging whether the likelihood ratio is greater than a preset third threshold value or not;
if not, determining the SCabnAn interrupt occurs.
In order to achieve the above object, an embodiment of the present invention discloses an apparatus for detecting an interruption of a low power radio access node, which is applied to a macro cell, where one macro cell includes a plurality of small cells of the low power radio access node, and the apparatus includes:
a node information obtaining module for obtaining and marking as SCabnThe node information of the small cell in the abnormal state, wherein the SCabnIs as follows;
neighboring nodeA determining module, configured to determine, according to the obtained node information and a preset node selection algorithm, the SC in the small cell included in the current macro cellabnA neighboring small cell;
an abnormal information sending module, configured to send abnormal information to the determined small cell, where the abnormal information includes: the SCabnNode information of (2);
a device state information receiving module, configured to receive SC device state information, sent by the determined small cell, of the user terminal device served by the small cell, where the SC device state information carries the user terminal device served by the determined small cell and the SC deviceabnCorrelation information between;
a device status information obtaining module, configured to obtain MC device status information of a user equipment served by a current macro cell, where the MC device status information includes: user terminal equipment of current macro cell service and SCabnCorrelation information between;
an interrupt detection module, configured to detect the SC according to the correlation information carried in the SC device state information and the correlation information included in the MC device state informationabnWhether an interrupt occurs.
In a specific implementation manner of the present invention, the neighboring node determining module includes:
a node sorting submodule, configured to sort the small cells included in the current macro cell according to each small cell and the SCabnThe distances between the two are sorted from near to far;
a neighboring node determination submodule, configured to determine a first preset number of small cells ranked at the top as the SCabnA neighboring small cell.
In a specific implementation manner of the present invention, the interrupt detection module includes:
a correlation information sorting submodule, configured to sort the correlation information carried in the SC device state information and the correlation information included in the MC device state information according to the geographic location of the user terminal device and the SCabnThe distances between the two are sorted from near to far;
an interrupt detection submodule for detecting the interrupt according to a second preset number of user terminal devices and the SC which are ranked in the frontabnDetecting the SCabnWhether an interrupt occurs.
In a specific implementation manner of the present invention, the interrupt detection submodule includes:
a likelihood ratio calculation unit for calculating the likelihood ratio between the SC and the user terminal devices according to a second preset number of the user terminal devices in the top rankingabnThe correlation between the SCs is calculatedabnWherein the likelihood ratio is used to represent PraAnd PrnRatio between, PraFor representing user terminal and the SCabnThe value of the correlation between them is at the SCabnProbability of occurrence in abnormal state, PrnFor representing user terminal and the SCabnThe value of the correlation between them is at the SCabnProbability of occurrence in a normal state;
a likelihood ratio judging unit for judging whether the likelihood ratio is greater than a preset third threshold value;
an interruption determination unit configured to determine the SC if a determination result of the likelihood ratio determination unit is yesabnAn interrupt occurs.
As can be seen from the above, in the scheme provided in the embodiment of the present invention, after the node information of a small cell in an abnormal state is obtained, a small cell adjacent to the small cell is determined, and whether the small cell in the abnormal state is interrupted or not is determined according to the device state information of the user terminal device served by the determined small cell and the device state information of the user terminal device served by the current macro cell. Therefore, in the scheme provided by the embodiment of the invention, the small cell of the terminal in the current macro cell can be detected only by obtaining the equipment state of the user terminal equipment served by the small cell adjacent to the abnormal small cell and the equipment state information of the user terminal equipment served by the current macro cell, and the equipment state information of the user terminal equipment served by all small cells in the current macro cell does not need to be obtained, so that the network communication overhead can be reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a first flowchart illustrating an interruption detection method for a low power radio access node according to an embodiment of the present invention;
fig. 2 is a second flowchart illustrating an interruption detection method for a low power radio access node according to an embodiment of the present invention;
fig. 3 is a third flowchart illustrating an interruption detection method for a low power radio access node according to an embodiment of the present invention;
fig. 4 is a schematic flowchart of a method for a small cell to obtain node information according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an apparatus for detecting an interruption of a low power radio access node according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic flowchart of an interruption detection method for a low power radio access node according to an embodiment of the present invention, where the method is applied to a macro cell, and one macro cell may include multiple low power radio access node small cells, and specifically includes:
s101: is obtained as SCabnNode information of the small cell in the abnormal state.
The above SCabnThe node information of (2) may include: SC (Single chip computer)abnNumber of (2), SCabnThe geographic location, etc., and the application does not limit this.
Specifically, the current macro cell can be according to SCabnNumber of (2) obtaining SCabnThe geographic location of the location, etc.
The small cell in the abnormal state in the current macro cell may be determined by the current macro cell, or may be determined by each small cell in the current macro cell, which may specifically refer to the embodiments shown in fig. 2 and fig. 3.
S102: according to the obtained node information and a preset node selection algorithm, determining and SC in a small cell contained in the current macro cellabnA neighboring small cell.
It is well known to those skilled in the art that the closer the distance between the user terminal equipment and the small cell is, the shadow fading is applied to the equipment state information of the user terminal equipmentThe smaller the influence of environmental factors and user activities, etc.; the more the state information of the user terminal equipment for interruption detection is, the more beneficial the accuracy of detecting whether the interruption occurs to the small cell in the abnormal state is, so that the distance SC can be obtainedabnObtaining and SC from state information of near multiple user terminal devicesabnRelated information, and further detect SC based on the obtained informationabnWhether an interrupt occurs.
The device state information of the ue may include information about correlation between the ue and a specific smallcell, for example, SCabnCorrelation information between them, etc.
In addition, the coverage range of each small cell is smaller, generally in the range of 10 meters to 200 meters, and the number of user terminal devices which can be served by each small cell is smaller, so that in practical application, the distance SC in the current macro cell can be usedabnObtaining the distances SC of a plurality of closer small cellsabnDevice state information of a plurality of user terminal devices that are closer.
In view of the above, determining and SCabnWhen an adjacent small cell is used, the small cell contained in the current macro cell may be firstly processed according to each small cell and SCabnThe distances between the small cells are sequentially sorted from near to far, and then a first preset number of small cells which are sorted in front are determined as SCabnA neighboring small cell.
S103: and sending abnormal information to the determined small cell.
Wherein, the above exception information at least includes: SC (Single chip computer)abnNode information of (2).
S104: and receiving SC equipment state information of the user terminal equipment served by the small cell, which is sent by the determined small cell.
Wherein, the SC equipment state information at least needs to carry the user terminal equipment and SC of the determined small cell serviceabnInformation on the correlation between them whenHowever, other information may also be carried, for example, the determined geographical location information of the user terminal device served by the small cell, and the like, which is not limited in this application.
In particular, user terminal equipment and SCabnThe correlation information between the user terminal equipment and the SC can be obtained through the user terminal equipmentabnThe RSRP (Reference Signal Receiving Power) value between the two values can be used to represent the user terminal equipment and the SC in practical applicationabnThe value of the correlation information between is not limited to the RSRP value described above.
As can be seen from the foregoing description, the determined small cell may be multiple small cells, in this case, each small cell respectively obtains SC device state information of the user terminal device served by each small cell, and then each small cell respectively sends the obtained SC device state information to the current macro cell.
S105: and obtaining MC equipment state information of the user terminal equipment served by the current macro cell.
In the process of accessing the network by the user terminal equipment, the user terminal equipment can access the network through the small cell contained in the current macrocell or can access the network through the current macrocell, that is, the current macrocell and the small cell contained in the current macrocell both have corresponding served user terminal equipment, so that the SC is detectedabnIn the process of whether the interrupt occurs, the MC device state information may be obtained in addition to the SC device state information described above.
The MC device status information may include: user terminal equipment and SC (service center) of current macrocell serviceabnCorrelation information between them. Similar to the SC device status information, the MC device status information may also include other information, for example, the geographical location information of the user terminal device currently served by the macro cell, and the like.
S106: setting according to the correlation information and MC carried in the SC equipment state informationDetecting SC by correlation information included in the standby state informationabnWhether an interrupt occurs.
Because each piece of correlation information carried in the SC equipment state information and each piece of correlation information included in the MC equipment state information respectively correspond to the user terminal equipment and the SCabnThe distances between them are different, and as can be seen from the foregoing description, the user terminal device distance SCabnThe closer the user terminal equipment is to the SCabnThe smaller the influence of the environmental factors such as shadow fading and the like and the user activity on the correlation information between them, the more preferable the use of the distance SC is in practical useabnNear subscriber terminal equipment and SCabnCorrelation information detection SC betweenabnWhether an interrupt occurs.
Specifically, the correlation information carried in the SC device status information and the correlation information included in the MC device status information may be first determined according to the geographical location of the user terminal device and the SCabnThe distances between the user terminal equipment and the SC are sorted from near to far, and then according to a second preset number of user terminal equipment and SC which are sorted in frontabnCorrelation between them, detecting SCabnWhether an interrupt occurs.
Optionally, according to a second preset number of user terminal devices and SCs in the top rankingabnCorrelation between them, detecting SCabnWhen the interrupt occurs, the method can be realized by the following steps:
according to the second preset number of user terminal equipment and SC which are ranked in the frontabnCorrelation between them, calculating SCabnA likelihood ratio of (d);
judging whether the likelihood ratio is larger than a preset third threshold value or not;
if not, then SC is judgedabnAn interrupt occurs.
Wherein the likelihood ratio is used to represent PraAnd PrnRatio between, PraFor indicating user terminal and SCabnThe value of the correlation between them is SCabnProbability of occurrence in abnormal state, PrnFor indicating user terminal and SCabnThe value of the correlation between them is SCabnProbability of occurrence in the normal state.
In particular, SC may be calculated by Bayesian criterionabnOf course, in practical application, the likelihood ratio of (2) is not limited to the calculation of SC by Bayesian criterionabnLikelihood ratios, and one skilled in the art can select other criteria for calculation according to the specific meaning of the likelihood ratios, which are not listed here.
It should be noted that the solutions provided in the foregoing embodiments only illustrate how to detect whether an interrupt occurs in one small cell in an abnormal state in the current macro cell, and in practical applications, it may also be necessary to detect whether multiple small cells in abnormal states have an interrupt at the same time, and the solutions provided in the foregoing embodiments may be used for detecting each small cell in an abnormal state.
Because the geographic positions of the user terminal devices are different, the user terminal devices may access the network through the current macro cell and may also access the network through any small cell contained in the current macro cell, so that the current macro cell may receive information sent by the user terminal devices served by the current macro cell, the small cells may receive information sent by the user terminal devices served by the current macro cell, and the current macro cell and the small cells may determine the small cells in abnormal states according to the respective received information. How the current macrocell and small cell determine the small cell in the abnormal state is described by two specific embodiments.
In an embodiment of the present invention, referring to fig. 2, a schematic flow chart of another interrupt detection method for a low power radio access node is provided, and compared with the foregoing embodiment, in this embodiment, the foregoing S101 includes:
S101A: and receiving the node correlation information sent by the user terminal equipment.
The node correlation information at least includes correlation information between the ue and each small cell in the vicinity of the ue, and of course, the node correlation information may also include other information, for example, geographical location information where the ue is located.
S101B: determining that the small cell corresponding to the node correlation meeting the relational expression in the node correlation information is an abnormal small cell, and recording as follows: SC (Single chip computer)abn。
Specifically, the relationship may be: | Rc-Rd|>Th1，
Wherein R iscMarking as SC for the user terminal equipment contained in the node correlation information and the adjacent oneaR, the correlation information between small cellsdFor the user terminal equipment and SC recorded in the preset databaseaCorrelation information between, Th1Is a preset first threshold value.
S101C: obtaining SCabnNode information of (2).
In a communication network, each small cell has a unique identifier, such as a small cell number, and the SC is determined at S101BabnLater, the current macro cell can be according to SCabnThe unique identification of the small cell is further obtained, the geographic position information of the small cell is further obtained, and the like, and then the SC is obtainedabnComplete node information.
In another embodiment of the present invention, referring to fig. 3, a signaling flow diagram of a method for detecting an interruption of a low power radio access node is provided, and compared with the previous embodiment, in this embodiment,
is obtained as SCabnThe node information of the small cell in the abnormal state (S101) may specifically be:
S101D: receiving a small cell sent by a user terminal device and recorded as SCabnIn an abnormal stateNode information of the small cell.
It should be noted that, unlike the embodiment shown in fig. 2, in this embodiment, an SC is obtained by a small cell that provides service for a user terminal deviceabnNode information of (2).
Specifically, referring to fig. 4, fig. 4 provides a schematic flow chart of a method for a small cell to obtain node information, where a small cell serving a user terminal device may obtain an SC by the methodabnThe node information of (2), comprising:
S107A: and receiving the node correlation information sent by the user terminal equipment by the small cell providing service for the user terminal equipment.
The node correlation information at least comprises correlation information between the user terminal equipment and each small cell adjacent to the user terminal equipment.
S107B: determining that the small cell corresponding to the node correlation meeting the relational expression in the node correlation information is an abnormal small cell, and recording as follows: SC (Single chip computer)abn。
Specifically, the relationship may be: | Rc-Rd|>Th2，
Wherein R iscMarking as SC for the user terminal equipment contained in the node correlation information and the adjacent oneaR, the correlation information between small cellsdFor the user terminal equipment and SC recorded in the preset databaseaCorrelation information between, Th2Is a preset second threshold value.
S107C: obtaining SCabnNode information of (2).
As can be seen from the above, in the solutions provided in the foregoing embodiments, after the node information of a small cell in an abnormal state is obtained, a small cell adjacent to the small cell is determined, and whether the small cell in the abnormal state is interrupted or not is determined according to the device state information of the user terminal device served by the determined small cell and the device state information of the user terminal device served by the current macro cell. It can be seen that, in the solutions provided in the foregoing embodiments, it is only necessary to obtain the device state of the ue served by the small cell adjacent to the abnormal-state small cell and the device state information of the ue served by the current macro cell, that is, it is able to detect the small cell in which the terminal occurs in the current macro cell, and it is not necessary to obtain the device state information of the ues served by all the small cells in the current macro cell.
The method for detecting the interruption of the low power wireless access node is described in the following with an embodiment.
Suppose that a user terminal device u accesses a network through a small cell in a current macro cell, and the small cell is recorded as SCuThe small cell around u includes: SC (Single chip computer)1、SC2……SCNAnd N in total.
S107A: u direction SCuTransmitting node correlation information including at least u and SC1、SC2……SCNThe correlation information between them is recorded as: ru；
Wherein the correlation information between u and small cells is represented by RSRP values between u and small cells;
Ru＝[rsc1rsc2…… rsci…… rscN]，
rscifor the current time u and SCiRSRP values in between.
S107B: calculation of RuThe variation amount DeltaR corresponding to each element in theu；
Wherein,
ΔRu＝[Δrsc1Δrsc2…… Δrsci…… ΔrscN]＝|Ru-R'u|，
Δrsci＝|rsci-r’sci|，R'ufor a predetermined database record with RuCorresponding data;
if Δ rsciIf it is greater than the preset threshold, SC may be determinediIs a small cell in an abnormal state;
let us assume, Δ rsc1If it is greater than the preset threshold, SC1For small cells in abnormal state, SC is connected1Is marked as SCabn。
Note that Δ rsc1、Δrsc2……ΔrscNThe threshold values may correspond to different preset threshold values, and of course, the threshold values may also correspond to one same preset threshold value.
S107C: obtaining SCabnI.e. obtaining SC1Node information of (2).
S101D：SCuWill SCabnThe node information of the current macro cell is sent to the current macro cell.
S102: according to SCabnThe distance SC in the current macro cell is selectedabnThe latest L small cel are AND SCabnA neighboring small cell.
S103: sending abnormal information to the L small cells determined by the S102, wherein the abnormal information at least comprises the following components: the node information obtained at S107C.
S104: the L small cells determined by the S102 respectively send SC equipment state information of the user terminal equipment served by each small cell to the current macro cell;
the above-mentioned SC device state information carries the user terminal device and SC of the small cell service determined by S102abnRSRP values in between.
S105: acquiring MC equipment state information of user terminal equipment served by a current macro cell;
the MC device status information includes the user terminal device and SC of the current macro cell serviceabnRSRP values in between.
S106: the data obtained by combining the SC device state information obtained in S104 and the MC device state information obtained in S105 is recorded as: rfIt is assumed that the numbers of the user terminal devices served by the L small cells determined in S102 are M respectively1、M2……MAThe number of the user terminal devices served by the current user terminal device served by the macro cell is MB；
Rf＝[rsc1rsc2…… rsci…… rscM]，
M is according to M1、M2……MAAnd MBThe calculated values are, for example:
M＝M1+M2+……+MA+MB；
selecting distance SC from the M user terminal devicesabnNearest C user terminal equipments, the C user terminal equipments and SCabnRSRP value in between is noted as:
wherein,
calculating SC based on Bayesian criterionabnThe likelihood ratio of (a) is,
is at H0Or H1Subscriber terminal equipment and SC under the conditionabnA joint probability density of RSRP values in between, where k is 0 or 1, H0Represents SCabnIn a normal state, H1Represents SCabnIs in an abnormal state.
SC can be detected based on the calculated lambda valueabnIf the interruption occurs, specifically, if λ is greater than a preset threshold, determining SCabnAn interrupt occurs, otherwise, SC is decidedabnNo interruption occurred.
Corresponding to the interrupt detection method of the low-power wireless access node, the embodiment of the invention also provides an interrupt detection device of the low-power wireless access node.
Fig. 5 is a schematic structural diagram of an interruption detection apparatus for a low power radio access node according to an embodiment of the present invention, where the apparatus is applied to a macro cell, and one macro cell includes a plurality of low power radio access nodes smallcell, and includes: a node information obtaining module 501, a neighboring node determining module 502, an abnormal information sending module 503, a device state information receiving module 504, a device state information obtaining module 505, and an interrupt detecting module 506.
Wherein, the node information obtaining module 501 is configured to obtain and record as SCabnNode information of the small cell in the abnormal state;
a neighboring node determining module 502, configured to determine the SC in the small cell included in the current macro cell according to the obtained node information and a preset node selection algorithmabnA neighboring small cell;
an abnormal information sending module 503, configured to send abnormal information to the determined small cell, where the abnormal information includes: the SCabnNode information of (2);
device statusAn information receiving module 504, configured to receive SC device state information of the ue served by the small cell, where the SC device state information carries the ue served by the small cell and the SC deviceabnCorrelation information between;
a device status information obtaining module 505, configured to obtain MC device status information of a user equipment served by a current macro cell, where the MC device status information includes: user terminal equipment of current macro cell service and SCabnCorrelation information between;
an interruption detection module 506, configured to detect the SC according to the correlation information carried in the SC device state information and the correlation information included in the MC device state informationabnWhether an interrupt occurs.
Specifically, the neighboring node determining module 502 may include: a node ordering submodule and a neighboring node determination submodule (not shown in the figure).
The node sorting submodule is used for sorting small cells contained in the current macro cell according to each small cell and the SCabnThe distances between the two are sorted from near to far;
a neighboring node determination submodule, configured to determine a first preset number of small cells ranked at the top as the SCabnA neighboring small cell.
Specifically, the interrupt detection module 506 may include: a dependency information ordering sub-module and an interrupt detection sub-module (not shown).
Wherein, the correlation information sorting submodule is used for sorting the correlation information carried in the SC equipment state information and the correlation information included in the MC equipment state information according to the geographical position of the user terminal equipment and the SCabnThe distances between the two are sorted from near to far;
an interrupt detection submodule for detecting the interrupt according to a second preset number of user terminal devices and the SC which are ranked in the frontabnDetecting the SCabnWhether an interrupt occurs.
Optionally, the interrupt detection sub-module may include: a likelihood ratio calculation unit, a likelihood ratio judgment unit, and an interruption determination unit (not shown in the figure).
Wherein, the likelihood ratio calculating unit is used for calculating the likelihood ratio between the SC and the user terminal equipment according to a second preset number of user terminal equipment in the front of the sequenceabnThe correlation between the SCs is calculatedabnWherein the likelihood ratio is used to represent PraAnd PrnRatio between, PraFor representing user terminal and the SCabnThe value of the correlation between them is at the SCabnProbability of occurrence in abnormal state, PrnFor representing user terminal and the SCabnThe value of the correlation between them is at the SCabnProbability of occurrence in a normal state;
a likelihood ratio judging unit for judging whether the likelihood ratio is greater than a preset third threshold value;
an interruption determination unit configured to determine the SC if a determination result of the likelihood ratio determination unit is yesabnAn interrupt occurs.
Because the geographic positions of the user terminal devices are different, the user terminal devices may access the network through the current macro cell and may also access the network through any small cell contained in the current macro cell, so that the current macro cell may receive information sent by the user terminal devices served by the current macro cell, the small cells may receive information sent by the user terminal devices served by the current macro cell, and the current macro cell and the small cells may determine the small cells in abnormal states according to the respective received information. How the current macrocell and small cell determine the small cell in the abnormal state is described by two specific embodiments.
In an embodiment of the invention, the node information obtaining module 501 includes: a node correlation information receiving sub-module, an abnormal node determining sub-module, and a node information obtaining sub-module (not shown in the figure).
The node correlation information receiving submodule is configured to receive node correlation information sent by a user terminal device, where the node correlation information includes: the correlation information between the user terminal equipment and each small cell adjacent to the user terminal equipment;
an abnormal node determining submodule, configured to determine that, in the node correlation information, a small cell corresponding to the node correlation that satisfies the following relational expression is a small cell in an abnormal state, and records the small cell as: SC (Single chip computer)abn，
|Rc-Rd|>Th1
Wherein R iscMarking the user terminal equipment contained in the node correlation information and one adjacent to the user terminal equipment as SCaR, the correlation information between small cellsdThe user terminal equipment recorded in a preset database and the SCaCorrelation information between, Th1Is a preset first threshold value;
a node information obtaining submodule for obtaining the SCabnNode information of (2).
In another embodiment of the present invention, the node information obtaining module 501 is specifically configured to receive a small cell that provides a service for a user terminal device and is marked as an SCabnNode information of the small cell in the abnormal state;
wherein, the small cell providing service for the user terminal equipment obtains the SC by the following modeabnNode information of (2):
receiving node correlation information sent by user terminal equipment by a small cell providing service for the user terminal equipment, wherein the node correlation information comprises: the correlation information between the user terminal equipment and each small cell adjacent to the user terminal equipment;
determining that a small cell corresponding to the node correlation satisfying the following relational expression in the node correlation information is an abnormal small cell, and recording the abnormal small cell as: SC (Single chip computer)abn，
|Rc-Rd|>Th2
Wherein R iscMarking the user terminal equipment contained in the node correlation information and one adjacent to the user terminal equipment as SCaR, the correlation information between small cellsdThe user terminal equipment recorded in a preset database and the SCaCorrelation information between, Th2Is a preset second threshold value;
obtaining the SCabnNode information of (2).
As can be seen from the above, in the solutions provided in the foregoing embodiments, after the node information of a small cell in an abnormal state is obtained, a small cell adjacent to the small cell is determined, and whether the small cell in the abnormal state is interrupted or not is determined according to the device state information of the user terminal device served by the determined small cell and the device state information of the user terminal device served by the current macro cell. It can be seen that, in the solutions provided in the foregoing embodiments, it is only necessary to obtain the device state of the ue served by the small cell adjacent to the abnormal-state small cell and the device state information of the ue served by the current macro cell, that is, it is able to detect the small cell in which the terminal occurs in the current macro cell, and it is not necessary to obtain the device state information of the ues served by all the small cells in the current macro cell.
For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Those skilled in the art will appreciate that all or part of the steps in the above method embodiments may be implemented by a program to instruct relevant hardware to perform the steps, and the program may be stored in a computer-readable storage medium, which is referred to herein as a storage medium, such as: ROM/RAM, magnetic disk, optical disk, etc.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims (6)

1. A method for detecting interruption of a low-power wireless access node is applied to a macro cell, wherein one macro cell comprises a plurality of small cells of the low-power wireless access node, and the method comprises the following steps:
is obtained as SCabnNode information of the small cell in the abnormal state;
according to the obtained node information and a preset node selection algorithm, determining the SC in the small cell contained in the current macrocellabnA neighboring small cell;
sending abnormal information to the determined small cell, wherein the abnormal information comprises: the SCabnNode information of (2);
receiving SC equipment state information of user terminal equipment served by the small cell, which is sent by the determined small cell, wherein the SC equipment state information carries the user terminal equipment served by the determined small cell and the SCabnCorrelation information between;
obtaining MC device state information of user terminal devices served by a current macro cell, wherein the MC device state information comprises: user terminal equipment of current macro cell service and SCabnCorrelation information between;
the correlation information carried in the SC equipment state information and the correlation information included in the MC equipment state information are processed according to the geographical position of the user terminal equipment and the SCabnThe distances between the two are sorted from near to far;
according to a second preset number of user terminal equipment and the SC which are ranked in the frontabnThe correlation between the SCs is calculatedabnWherein the likelihood ratio is used to represent PraAnd PrnRatio between, PraFor representing user terminal and the SCabnThe value of the correlation between them is at the SCabnProbability of occurrence in abnormal state, PrnFor representing user terminal and the SCabnThe value of the correlation between them is at the SCabnProbability of occurrence in a normal state;
judging whether the likelihood ratio is greater than a preset third threshold value or not;
if not, determining the SCabnAn interrupt occurs.
2. The method of claim 1, wherein the obtaining is denoted as SCabnThe node information of the small cell in the abnormal state comprises the following steps:
receiving node correlation information sent by user terminal equipment, wherein the node correlation information comprises: the correlation information between the user terminal equipment and each smallcell adjacent to the user terminal equipment;
determining that a small cell corresponding to the node correlation satisfying the following relational expression in the node correlation information is an abnormal small cell, and recording the abnormal small cell as: SC (Single chip computer)abn，
|Rc-Rd|＞Th1
Wherein R iscMarking the user terminal equipment contained in the node correlation information and one adjacent to the user terminal equipment as SCaR, the correlation information between small cellsdThe user terminal equipment recorded in a preset database and the SCaCorrelation information between, Th1Is a preset first threshold value;
obtaining the SCabnNode information of (2).
3. The method of claim 1, wherein the obtaining is denoted as SCabnThe node information of the small cell in the abnormal state comprises the following steps:
receiving a small cell sent by a user terminal device and recorded as SCabnNode information of the small cell in the abnormal state;
wherein, the small cell providing service for the user terminal equipment obtains the SC by the following modeabnNode information of (2):
receiving node correlation information sent by user terminal equipment by a small cell providing service for the user terminal equipment, wherein the node correlation information comprises: the correlation information between the user terminal equipment and each small cell adjacent to the user terminal equipment;
determining that a small cell corresponding to the node correlation satisfying the following relational expression in the node correlation information is an abnormal small cell, and recording the abnormal small cell as: SC (Single chip computer)abn，
|Rc-Rd|＞Th2
Wherein R iscFor the user terminal equipment contained in the node correlation information to be adjacent to the node correlation informationOne is marked as SCaR, the correlation information between small cellsdThe user terminal equipment recorded in a preset database and the SCaCorrelation information between, Th2Is a preset second threshold value;
obtaining the SCabnNode information of (2).
4. The method according to any one of claims 1-3, wherein said determining and said SC in the smallcell contained in the current macro cell according to the obtained node information and the preset node selection algorithmabnA neighboring smallcell comprising:
the small cells contained in the current macro cell are connected with the SC according to each small cellabnThe distances between the two are sorted from near to far;
determining a first preset number of small cells ranked at the top as the SCabnA neighboring small cell.
5. An apparatus for detecting interruption of a low power radio access node, which is applied to a macro cell, wherein one macro cell comprises a plurality of small cells of the low power radio access node, the apparatus comprising:
a node information obtaining module for obtaining and marking as SCabnThe node information of the small cell in the abnormal state, wherein the SCabnIs as follows;
a neighboring node determining module, configured to determine, according to the obtained node information and a preset node selection algorithm, a neighboring node in a small cell included in the current macro cell, where the neighboring node is associated with the SCabnA neighboring small cell;
an abnormal information sending module, configured to send abnormal information to the determined small cell, where the abnormal information includes: the SCabnNode information of (2);
a device state information receiving module, configured to receive SC device state information, sent by the determined small cell, of the user terminal device served by the small cell, where the SC device state information is sent by the determined small cell, where the SC device state information is sent by the user terminal device served by the small cellIn the message, the user terminal equipment carrying the determined small cell service and the SCabnCorrelation information between;
a device status information obtaining module, configured to obtain MC device status information of a user equipment served by a current macro cell, where the MC device status information includes: user terminal equipment of current macro cell service and SCabnCorrelation information between;
the interrupt detection module comprises a correlation information sequencing submodule and an interrupt detection submodule;
a correlation information sorting submodule, configured to sort the correlation information carried in the SC device state information and the correlation information included in the MC device state information according to the geographic location of the user terminal device and the SCabnThe distances between the two are sorted from near to far;
the interrupt detection submodule comprises a likelihood ratio calculation unit, a likelihood ratio judgment unit and an interrupt judgment unit;
a likelihood ratio calculation unit for calculating the likelihood ratio between the SC and the user terminal devices according to a second preset number of the user terminal devices in the top rankingabnThe correlation between the SCs is calculatedabnWherein the likelihood ratio is used to represent PraAnd PrnRatio between, PraFor representing user terminal and the SCabnThe value of the correlation between them is at the SCabnProbability of occurrence in abnormal state, PrnFor representing user terminal and the SCabnThe value of the correlation between them is at the SCabnProbability of occurrence in a normal state;
a likelihood ratio judging unit for judging whether the likelihood ratio is greater than a preset third threshold value;
an interruption determination unit configured to determine the SC if a determination result of the likelihood ratio determination unit is yesabnAn interrupt occurs.
6. The apparatus of claim 5, wherein the neighboring node determining module comprises:
a node sorting submodule, configured to sort the small cells included in the current macro cell according to each small cell and the SCabnThe distances between the two are sorted from near to far;
a neighboring node determination submodule, configured to determine a first preset number of small cells ranked at the top as the SCabnA neighboring small cell.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101394355A (en) * 2008-10-29 2009-03-25 北京大学 Routing link detection method and device for mobile Ad hoc network
EP2624619A1 (en) * 2012-01-31 2013-08-07 Alcatel Lucent Network configuration
CN103269494A (en) * 2013-04-24 2013-08-28 北京邮电大学 Method and system for interruption compensating in wireless access network cell
CN103517308A (en) * 2013-10-11 2014-01-15 清华大学 Cell interrupt detecting method based on neighbor cell reference signal receiving power list

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101394355A (en) * 2008-10-29 2009-03-25 北京大学 Routing link detection method and device for mobile Ad hoc network
EP2624619A1 (en) * 2012-01-31 2013-08-07 Alcatel Lucent Network configuration
CN103269494A (en) * 2013-04-24 2013-08-28 北京邮电大学 Method and system for interruption compensating in wireless access network cell
CN103517308A (en) * 2013-10-11 2014-01-15 清华大学 Cell interrupt detecting method based on neighbor cell reference signal receiving power list

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Cell Outage Detection and Compensation in Two-Tier Heterogenous Networks;Wenqian Xue, Hengzhi Zhang, Yong Li;《International Journal of Antenna and Propagation》;20140513;第1-2章，第3章第3.1节，附图1 *

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