CN114040430B - Method for distinguishing access equipment in wireless network - Google Patents
Method for distinguishing access equipment in wireless network Download PDFInfo
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- CN114040430B CN114040430B CN202110904466.4A CN202110904466A CN114040430B CN 114040430 B CN114040430 B CN 114040430B CN 202110904466 A CN202110904466 A CN 202110904466A CN 114040430 B CN114040430 B CN 114040430B
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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
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- 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
Abstract
The invention relates to the technical field of communication, in particular to a method for distinguishing access equipment in a wireless network, which sets at least one distance threshold value in advance according to a direct coverage distance range of a service cell, and further comprises the following steps: calculating the transmission distance of a signal sent by the mobile terminal according to the transmission time delay in the call record of the user; and calling a corresponding distance threshold value from at least one distance threshold value according to the type of the hung-down equipment, and comparing the transmission distance with the corresponding distance threshold value to judge the equipment accessed by the mobile terminal in the call. The invention has the beneficial effects that: based on basic data and service data of operators, calculating whether the mobile terminal is accessed through a service cell or through a down-hanging device of the service cell by using transmission delay of electromagnetic waves in different types of repeater devices through a threshold classification judging method; at the same time, the invention keeps the cost of developing and deploying the application low, and no special auxiliary equipment is needed to be added.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method for distinguishing access devices in a wireless network.
Background
With the rapid development of the communication technology field, the use of mobile terminals has been popularized. In order to meet the complex and diverse access scenarios of mobile terminals, a large number of down-hanging devices, such as down-hanging repeaters, exist in a mobile network of a telecom operator, and macro base stations of the down-hanging repeaters and other devices are called donor base stations, and cells of the down-hanging repeaters and other devices are called donor cells. Under the regulation of the mobile specification, the hanging devices such as the repeater do not have own independent network identification in the mobile network, and the hanging devices only serve as a signal amplifier to use the network identification of the donor cell, and mainly comprise: cell identification (e.g., cell ID), sector number (e.g., SEC), physical identifier of the cell (e.g., PN, PCI), etc. This results in that it is not possible to directly distinguish whether a call of a mobile terminal is accessed through the donor cell or through an underhung device of the donor cell, such as a repeater.
In the prior art, in some working scenarios such as network optimization, network operation and market development, there is a need to distinguish whether a mobile terminal is accessed through a donor cell itself or through an underhung device (e.g., a repeater) thereof. Such as location positioning of mobile terminals, market front-end statistics of how many users a business has attracted, etc. Taking mobile terminal positioning as an example, in the works of network optimization and market development of telecommunication, a popular mobile phone positioning method is to calculate the mobile phone position by using available multi-paths of a cell reported by a user call detail record. For the cell of the hanging repeater, the available multipath from the cell reported by the call detail record cannot distinguish whether the mobile terminal of the call is accessed through the repeater or the donor cell. The distance between the repeater and the donor cell is basically from tens of meters to tens of kilometers, which causes an error of tens of meters to tens of kilometers to be additionally caused to the positioning result of the mobile terminal, and the error is often not enough to meet the requirement of work, so that it is necessary to distinguish whether the call signal is accessed through the donor cell or the downloading equipment in the wireless network.
Disclosure of Invention
In view of the foregoing problems in the prior art, a method for distinguishing access devices in a wireless network is now provided.
The specific technical scheme is as follows:
the invention includes a method for distinguishing access equipment in a wireless network, which is used for distinguishing the current access equipment as a service cell or a down-hanging equipment of the service cell in the wireless network, and setting at least one distance threshold value according to the direct coverage distance range of the service cell in advance, and further includes:
collecting a user call record of a mobile terminal, and obtaining the service cell of the call from the user call record;
calculating the transmission distance of the signal sent by the mobile terminal according to the transmission time delay in the user call record;
inquiring basic data corresponding to the service cell of the call, inquiring whether the service cell has the hanging equipment or not according to the basic data, and continuously inquiring the type of the hanging equipment when the service cell is inquired that the hanging equipment exists;
according to the type of the hanging equipment, the corresponding distance threshold value is called from the at least one distance threshold value, and the transmission distance is compared with the corresponding distance threshold value:
if the transmission distance is greater than or equal to the distance threshold value, the current call of the mobile terminal is accessed by the hanging-down equipment;
and if the transmission distance is smaller than the distance threshold value, indicating that the call of the mobile terminal is directly accessed by the service cell.
Optionally, the at least one distance threshold is greater than a maximum coverage distance in a direct coverage distance range of the serving cell.
Optionally, the base data includes base station data and/or outdoor repeater data and/or indoor coverage site data.
Optionally, the base station data includes a base station identification and/or a base station type and/or a base station longitude and latitude and/or a physical identifier of the serving cell.
Optionally, the outdoor repeater data includes an outdoor repeater identifier and/or an outdoor repeater type and/or a donor base station and/or a donor sector of the outdoor repeater and/or a longitude and latitude of the outdoor repeater.
Optionally, the indoor coverage site data includes indoor coverage site identification and/or indoor coverage site type and/or indoor coverage site longitude and latitude and/or indoor distribution coverage.
Optionally, the main field of the user call record includes a mobile terminal identifier and/or a timestamp of a network event and/or physical identifiers of a serving network element and a non-serving network element and/or a serving cell and a non-serving cell and/or a transmission delay of a network event and/or a serving cell and a non-serving cell signal reaching the mobile terminal.
Optionally, the at least one distance threshold value includes a first distance threshold value and a second distance threshold value;
when the type of the hanging equipment is a portable repeater or a radio frequency repeater, comparing the transmission distance with the first distance threshold value, and judging the equipment accessed by the call according to the first distance threshold value; or (b)
And when the type of the down-hanging equipment is an optical fiber repeater, comparing the transmission distance with the second distance threshold value, and judging the equipment accessed by the call according to the second distance threshold value.
The technical scheme of the invention has the following advantages or beneficial effects: based on basic data and service data of operators, calculating whether the mobile terminal is accessed through a service cell or through a down-hanging device of the service cell by utilizing transmission time delay of electromagnetic waves in different types of repeater devices through a threshold classification judging method so as to adapt to more application scenes; meanwhile, the invention keeps the low cost of developing and deploying the application, does not need to add any special auxiliary equipment, and can judge by only using telecommunication basic data and business data.
Drawings
Embodiments of the present invention will now be described more fully with reference to the accompanying drawings. The drawings, however, are for illustration and description only and are not intended as a definition of the limits of the invention.
Fig. 1 is a flow chart of a method of distinguishing access devices in a wireless network in an embodiment of the present invention;
fig. 2 is a schematic diagram of the working principle of a donor cell and its underhung device in an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The invention is further described below with reference to the drawings and specific examples, which are not intended to be limiting.
The invention includes a method for distinguishing access equipment in a wireless network, which is used for distinguishing the current access equipment as a service cell or a down-hanging equipment of the service cell in the wireless network, as shown in fig. 1, at least one distance threshold value is set in advance according to a direct coverage distance range of the service cell, and the method further includes:
step S1, collecting a user call record of a mobile terminal, and acquiring a service cell of the call from the user call record;
step S2, calculating the transmission distance of the signal sent by the mobile terminal according to the transmission time delay in the user call record;
step S3, inquiring basic data corresponding to the service cell of the call, inquiring whether the service cell has the down-hanging equipment according to the basic data, and continuously inquiring the type of the down-hanging equipment when the down-hanging equipment exists in the service cell;
step S4, a corresponding distance threshold value is called from at least one distance threshold value according to the type of the hanging equipment, and the transmission distance is compared with the corresponding distance threshold value:
if the transmission distance is greater than or equal to the distance threshold value, the call of the mobile terminal is accessed by the hanging-down equipment;
and if the transmission distance is smaller than the distance threshold value, indicating that the call of the mobile terminal is directly accessed by the service cell.
In particular, since the underhung devices of the serving cell (e.g., repeater) tend to be several tens of meters to several tens of kilometers away from the base station of the serving cell, both have previously propagated through optical fiber, feeder, air interface, etc. mediums. Electromagnetic waves propagate in these media with their inherent propagation velocity, so that the propagation delay (essentially time) of multipath can be used to derive the transmission distance of the signal sent by the mobile terminal from the propagation velocity multiplied by the propagation delay.
Further, as shown in fig. 2, since the coverage range of the serving cell 1 (donor cell) is limited, for the mobile terminal 2 beyond the coverage range of the donor cell, access through the down-hanging device of the donor cell, for example, access through the repeater 3 is required. Presetting at least one distance threshold according to the direct coverage distance range of the donor cell, wherein the distance threshold should be larger than the maximum distance in the direct coverage distance range of the donor cell, and judging that the mobile terminal is accessed through the hanging repeater of the donor cell if the transmission distance of signals sent by the mobile terminal is larger than or equal to the distance threshold; if the transmission distance is less than the distance threshold, it can be determined that the donor cell is directly accessed.
Through the technical scheme, the invention mainly uses the user call record, namely the service data, and the basic data in the telecommunication network to judge, and does not need to additionally increase hardware equipment, so that low-cost deployment can be realized, and the application scene of the mobile terminal is enriched.
As an alternative embodiment, the base data comprises base station data and/or outdoor repeater data and/or indoor coverage site data. Wherein the base station data includes base station identifications such as bs ID, eNode BID, gmodeb ID; base station types, such as outdoor base station and indoor base station; longitude and latitude of the base station; physical identifiers of the serving cell, such as PN, PCI. The outdoor repeater data includes outdoor repeater identification, such as a station number, etc.; outdoor repeater types, such as portable repeater, radio frequency repeater, fiber repeater (including macro-station coupling and microcell coupling), etc.; a donor base station and a donor sector of the outdoor repeater; longitude and latitude of the outdoor repeater. The indoor coverage site data comprises indoor division base station identifiers; indoor coverage site types such as microcells, fiber optic repeater, radio frequency repeater, macro station coupling, microcell coupling, and the like; latitude and longitude of the indoor station; indoor distribution coverage, such as basements, elevators, specific floors, etc.
As an alternative embodiment, the main fields of the user call record include the mobile terminal identity and/or the timestamp of the network event and/or the physical identifiers of the serving and non-serving network elements and/or the serving and non-serving cells and/or the transmission delays of the network event and/or the serving and non-serving cell signals to the mobile terminal.
Specifically, each call of the mobile terminal generates a user call record (in some scenarios, even without a call, a user call detail record, such as MRO data reported by periodic measurements, is generated). The user call detail record can report the information of the calling service cell, non-service cell, transmission delay and the like, and can be used for judging the network element of the mobile terminal access network. The user call records include wireless side user call detail records such as CDR (call-detail record), MRO (measurement report), and core side user call records such as CHR (call history report ).
The main fields of the user call record include: mobile terminal identification, such as MDN, IMSI, IMEI, S1AP ID, GUTI MTMSI, etc.; a timestamp of a network event, such as a call date, a start timestamp, an end timestamp, a measurement report timestamp, etc.; serving network elements and non-serving network elements, such as base station identities, cell identities, sector numbers, etc.; physical identifiers of serving and non-serving cells, such as PN, PCI, etc.; network events such as first measurement report first PSMM/RUM/MRO and last measurement report last PSMM/RUM/MRO; the transmission delays of the serving cell and non-serving cell signals to the mobile terminal, such as round-trip delay (round-trip delay), time advance TA, time advance fitted by RSRP, etc.
As an alternative embodiment, the at least one distance threshold value comprises a first distance threshold value and a second distance threshold value;
when the type of the down-hanging equipment is a portable repeater or a radio frequency repeater, comparing the transmission distance with a first distance threshold value, and judging the equipment accessed by the call according to the first distance threshold value; or (b)
When the type of the down-hung equipment is an optical fiber repeater, comparing the transmission distance with a second distance threshold value, and judging the equipment accessed by the call according to the second distance threshold value.
Specifically, in the embodiment of the present invention, different distance threshold values need to be set according to different types of the hanging equipment of the donor cell. The distance threshold value is set according to the actual condition of the local built current network, and is set by comprehensively considering the station spacing, the time delay of repeater equipment, the distance between the repeater and the donor base station, the feeder length and the like in a typical coverage scene. Taking a 2G network as an example, when the downlink device is a radio frequency repeater and a portable repeater, the one-way delay of devices of the radio frequency repeater and the portable repeater is generally 5us, the round trip delay is 5/0.813×2=12.3 (chip), and then the first distance threshold value may be set to be equal to the round trip delay of devices of the radio frequency repeater and the portable repeater, that is, the first distance threshold value is expressed by the first distance threshold value, namely, thres1=12.3×8=130.4 (chip). In the judging process of the system, the general principle is that the signal delay of the mobile terminal accessed by the radio frequency repeater or the portable repeater is basically larger than the delay of repeater equipment, the distance between the repeater and the donor base station and the feeder length. Therefore, in this embodiment, if the signal delay of the mobile terminal is greater than or equal to 130.4 (chip), it is determined that the mobile terminal is connected to the downlink device, i.e., the radio frequency repeater or the portable repeater, by the call; if the signal delay of the mobile terminal is less than 130.4 (chip), the mobile terminal is judged to be accessed to the donor base station by the call.
When the type of the down-hanging equipment is an optical fiber repeater, for example, a 2G network is taken as an example, the single-pass time delay of a device of the optical fiber repeater is 13us, and the round trip time delay is 13/0.813 x 2 = 32 (chip); let threg2=32×8=256 (chip), and threg2 is used to represent the second distance threshold. If the signal time delay of the mobile terminal is greater than or equal to 256 (chip), judging that the call of the mobile terminal is accessed to a down-hanging device, namely an optical fiber repeater; if the signal delay of the mobile terminal is less than 256 (chip), the mobile terminal is judged to be accessed to the donor base station by the call.
The technical scheme of the invention has the following advantages or beneficial effects: based on basic data and service data of operators, calculating whether the mobile terminal is accessed through a service cell or through a down-hanging device of the service cell by utilizing transmission time delay of electromagnetic waves in different types of repeater devices through a threshold classification judging method so as to adapt to more application scenes; meanwhile, the invention keeps the low cost of developing and deploying the application, does not need to add any special auxiliary equipment, and can judge by only using telecommunication basic data and business data.
The foregoing description is only illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, and it will be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present invention, and are intended to be included within the scope of the present invention.
Claims (8)
1. A method for distinguishing access devices in a wireless network, for distinguishing a current access device in the wireless network as a serving cell or a down-hanging device of the serving cell, characterized in that at least one distance threshold value is set in advance according to a direct coverage distance range of the serving cell, further comprising:
collecting a user call record of a mobile terminal, and obtaining the service cell of the call from the user call record;
calculating the transmission distance of the signal sent by the mobile terminal according to the transmission time delay in the user call record;
inquiring basic data corresponding to the service cell of the call, inquiring whether the service cell has the hanging equipment or not according to the basic data, and continuously inquiring the type of the hanging equipment when the service cell is inquired that the hanging equipment exists;
according to the type of the hanging equipment, the corresponding distance threshold value is called from the at least one distance threshold value, and the transmission distance is compared with the corresponding distance threshold value:
if the transmission distance is greater than or equal to the distance threshold value, the current call of the mobile terminal is accessed by the hanging-down equipment;
and if the transmission distance is smaller than the distance threshold value, indicating that the call of the mobile terminal is directly accessed by the service cell.
2. The method of claim 1, wherein the at least one distance threshold is greater than a maximum coverage distance in a direct coverage distance range of the serving cell.
3. The method according to claim 1, wherein the base data comprises base station data and/or outdoor repeater data and/or indoor coverage site data.
4. A method according to claim 3, characterized in that the base station data comprises a base station identity and/or a base station type and/or a base station latitude and longitude and/or a physical identifier of the serving cell.
5. A method according to claim 3, characterized in that the outdoor repeater data comprises an outdoor repeater identity and/or an outdoor repeater type and/or a donor base station and/or donor sector of an outdoor repeater and/or a latitude and longitude of an outdoor repeater.
6. A method according to claim 3, characterized in that the indoor coverage site data comprises indoor coverage site identity and/or indoor coverage site type and/or indoor coverage site latitude and longitude and/or indoor distribution coverage.
7. Method according to claim 1, characterized in that the main fields of the subscriber call record comprise a mobile terminal identification and/or a timestamp of a network event and/or physical identifiers of a serving network element and a non-serving network element and/or a serving cell and a non-serving cell and/or a network event and/or a transmission delay of a serving cell and a non-serving cell signal to the mobile terminal.
8. The method of claim 1, wherein the at least one distance threshold value comprises a first distance threshold value and a second distance threshold value;
when the type of the hanging equipment is a portable repeater or a radio frequency repeater, comparing the transmission distance with the first distance threshold value, and judging the equipment accessed by the call according to the first distance threshold value; or (b)
And when the type of the down-hanging equipment is an optical fiber repeater, comparing the transmission distance with the second distance threshold value, and judging the equipment accessed by the call according to the second distance threshold value.
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