WO2016086643A1 - Procédé et appareil d'acquisition de distance de couverture - Google Patents

Procédé et appareil d'acquisition de distance de couverture Download PDF

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Publication number
WO2016086643A1
WO2016086643A1 PCT/CN2015/081578 CN2015081578W WO2016086643A1 WO 2016086643 A1 WO2016086643 A1 WO 2016086643A1 CN 2015081578 W CN2015081578 W CN 2015081578W WO 2016086643 A1 WO2016086643 A1 WO 2016086643A1
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Prior art keywords
coverage
test
rate
distance
reference rate
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PCT/CN2015/081578
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English (en)
Chinese (zh)
Inventor
姬舒平
赵黎波
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中兴通讯股份有限公司
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Publication of WO2016086643A1 publication Critical patent/WO2016086643A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements

Definitions

  • the present invention relates to the field of communications, and in particular to a method and apparatus for acquiring coverage distance.
  • single-cell coverage remote testing is used to judge communication system capabilities (such as Time Division Long Term Evolution (TD-LTE) systems), system equipment capabilities (such as “baseband processing unit (Building Base) Band Unit (BBU) + Radio Remote Unit (RRU) + antenna "), terminal equipment capabilities (such as User Equipment (UE)) and wireless environment propagation models are of great significance.
  • system equipment capabilities such as “baseband processing unit (Building Base) Band Unit (BBU) + Radio Remote Unit (RRU) + antenna "
  • terminal equipment capabilities such as User Equipment (UE)
  • UE User Equipment
  • BLER Block Error Ratio
  • the embodiment of the invention provides a method and a device for acquiring coverage distance, so as to at least solve the problem of lacking the criterion for determining the coverage capability of a cell in the prior art.
  • a method for obtaining a coverage distance includes: determining, according to a correspondence between a test rate and a coverage distance of a pre-acquired single cell coverage test, that the i-th test rate in the coverage test is less than a reference The cumulative percentage of the rate P i , where P i is the ratio of the cumulative sum of the distance from the first to the i-th test rate in the coverage test to be less than the reference rate, and the test distance when the i-th test rate is greater than the reference rate; Obtaining the cell line coverage rate P clc , determining whether P i is greater than P clc ; if the determination result is yes, determining that the distance id of the i-th test rate in the coverage distance in the coverage test is less than the reference rate is single cell coverage The coverage distance of the test.
  • the cumulative percentage P i when the i-th test rate in the coverage test is less than the reference rate is determined according to the corresponding relationship by using the following formula, including:
  • D iu is the distance of the i-th test rate in the coverage test that is greater than the reference rate, used to subtract from D id , and the subtracted difference is summed by i from 1 to n, and the summed value is obtained. Divided by D iu to obtain P i .
  • the method further includes: if the determination result is negative, if D (i+1) u does not exist, determining D (i+1)d is the coverage distance of the single cell coverage test, i ⁇ i+1.
  • the method further includes: acquiring a reference rate and a cell line coverage P clc , wherein the reference rate includes at least one of the following: an uplink reference rate R u , downlink reference rate R d .
  • the method further includes: obtaining a test rate and a coverage distance by using a single cell coverage test; and determining a correspondence between the test rate and the coverage distance according to the reference rate.
  • an apparatus for acquiring a coverage distance including: a first determining module, configured to determine a coverage test according to a correspondence between a test rate and a coverage distance of a pre-acquired single cell coverage test.
  • the cumulative percentage P i of the i-th test rate is less than the reference rate, where P i is the distance cumulative sum of the first to the i-th test rate in the coverage test less than the reference rate, and when the i-th test rate is greater than the reference rate measuring a distance ratio; determining module, provided the cell line P clc coverage based on a pre-acquired, it is determined whether P i is greater than P clc; the case where a first processing module, is provided as a result of the determination, the test coverage is determined
  • the distance D id of the i-th test rate in the coverage distance that is less than the reference rate is the coverage distance of the single-cell coverage test.
  • the first determining module is configured to determine, according to the corresponding relationship, the cumulative percentage P i when the i-th test rate in the coverage test is less than the reference rate by using the following formula, including:
  • D iu is the distance of the i-th test rate in the coverage test that is greater than the reference rate, used to subtract from D id , and the subtracted difference is summed by i from 1 to n, and the summed value is obtained. Divided by D iu to obtain P i .
  • the apparatus further includes: a second processing module, configured to determine, according to the pre-acquired cell line coverage rate P clc , whether P i is greater than P clc , and if the determination result is negative, if D (i+ 1) If u does not exist, it is determined that D (i+1)d is the coverage distance of the single cell coverage test, i ⁇ i+1.
  • a second processing module configured to determine, according to the pre-acquired cell line coverage rate P clc , whether P i is greater than P clc , and if the determination result is negative, if D (i+ 1) If u does not exist, it is determined that D (i+1)d is the coverage distance of the single cell coverage test, i ⁇ i+1.
  • the foregoing apparatus further includes: a first acquiring module, configured to acquire a reference rate and a cell line coverage P clc before the correspondence between the test rate and the coverage distance according to the pre-acquired single cell coverage test, where the reference rate At least one of the following: an uplink reference rate Ru and a downlink reference rate Rd .
  • a first acquiring module configured to acquire a reference rate and a cell line coverage P clc before the correspondence between the test rate and the coverage distance according to the pre-acquired single cell coverage test, where the reference rate At least one of the following: an uplink reference rate Ru and a downlink reference rate Rd .
  • the foregoing apparatus further includes: a second acquiring module, configured to acquire a test rate and a coverage distance by using a single cell coverage test after acquiring the reference rate and the cell line coverage P clc ; and the second determining module is configured to be based on the reference Rate, which determines the correspondence between the test rate and the coverage distance.
  • a second acquiring module configured to acquire a test rate and a coverage distance by using a single cell coverage test after acquiring the reference rate and the cell line coverage P clc ; and the second determining module is configured to be based on the reference Rate, which determines the correspondence between the test rate and the coverage distance.
  • the cumulative ratio P i of the i-th test rate in the coverage test is less than the reference rate is determined according to the corresponding relationship between the test rate and the coverage distance of the pre-acquired single cell coverage test, where P i is the coverage test.
  • the ratio of the cumulative sum of the distance from the first to the i-th test rate is less than the reference rate, and the ratio of the test distance when the i-th test rate is greater than the reference rate; whether P i is greater than or greater than the pre-acquired cell line coverage P clc P clc ;
  • the judgment result is YES
  • FIG. 1 is a flow chart of a method for acquiring a coverage distance according to an embodiment of the present invention
  • FIG. 2 is a structural block diagram of an apparatus for acquiring a coverage distance according to an embodiment of the present invention
  • FIG. 3 is a structural block diagram of an apparatus for acquiring a coverage distance according to an embodiment of the present invention.
  • FIG. 4 is a block diagram showing the structure of an apparatus for acquiring a coverage distance according to a preferred embodiment of the present invention
  • FIG. 5 is a flow chart of a method of acquiring coverage distance in accordance with a preferred embodiment of the present invention.
  • FIG. 1 is a flowchart of a method for acquiring coverage distance according to an embodiment of the present invention. As shown in FIG. 1 , the process includes the following steps:
  • Step S102 determining, according to the corresponding relationship between the test rate and the coverage distance of the pre-acquired single cell coverage test, the cumulative percentage P i when the i-th test rate in the coverage test is less than the reference rate;
  • P i is the ratio of the cumulative sum of the distance from the first to the i-th test rate in the coverage test to be less than the reference rate, and the test distance when the i-th test rate is greater than the reference rate.
  • Step S104 based on coverage cell line P clc acquired in advance, it is determined whether P i is greater than P clc;
  • step S106 if the determination result is yes, it is determined that the distance D id of the i-th test rate in the coverage distance in the coverage test is less than the reference rate is the coverage distance of the single-cell coverage test.
  • the cumulative percentage P i of the i-th test rate in the coverage test is less than the reference rate is determined according to the corresponding relationship between the test rate and the coverage distance of the pre-acquired single-cell coverage test, where P i is the coverage test.
  • the pre-acquired Cell Line Coverage Probability (P clc ) is used to measure that the i-th test rate in the coverage test is less than the reference rate. Whether the cumulative percentage P i is greater than the P clc , if greater than, the distance D id of the i-th test rate in the coverage test is less than the reference rate as a criterion for measuring the coverage capability of the cell, that is, using D id as the coverage distance of a cell .
  • the determining manner of the Pi is different.
  • the following formula may be determined, but is not limited thereto:
  • D iu is the distance of the i-th test rate in the coverage test that is greater than the reference rate, used to subtract from D id , and the subtracted difference is summed by i from 1 to n, and the summed value is obtained. Divided by D iu to obtain P i .
  • D iu is based on the reference rate.
  • the i-th test rate is greater than the reference rate, that is, the distance when the i-th test rate is higher than the reference rate; similarly, D id To measure the distance at which the i-th test rate is less than the reference rate in a coverage test based on the reference rate, that is, the distance at which the i-th test rate is lower than the reference rate.
  • the coverage distance of the single cell coverage test may also be determined by the following steps:
  • step S108 if the result of the determination is no, if D (i+1)u does not exist, it is determined that D (i+1)d is the coverage distance of the single cell coverage test.
  • the current i+1th D (i+1)d is the coverage distance of the single cell coverage test, where i ⁇ i+1.
  • the following processing steps may be performed:
  • Step S94 obtaining a reference rate and a cell line coverage P clc , wherein the reference rate includes at least one of the following: an uplink reference rate R u and a downlink reference rate R d .
  • the reference rate is based on the uplink reference rate and the downlink reference rate provided by the actual operator, and the method for obtaining the coverage distance provided by the embodiment of the present invention is adopted, which is not limited.
  • the following processing steps may also be included:
  • Step S96 obtaining a test rate and a coverage distance by using a single cell coverage test
  • Step S98 determining a correspondence between the test rate and the coverage distance according to the reference rate.
  • determining the correspondence between the test rate and the coverage distance may display the correspondence between the test rate and the coverage distance through an excel table or a graph.
  • the correspondence between the test rate and the coverage distance is determined as follows:
  • the test rate will first fading, that is, the test rate is less than 2Mbps, and the distance 3.1km is recorded as D 1d ; if it is 3.2km from the test point, the test rate is greater than 2Mbps for the first time, record the distance 3.2 Km is D 1u ; similarly, the distance D id of the subsequent i-th time less than 2 Mbps and the distance D iu , i>1 of the i-th time greater than 2 Mbps are recorded; from the above records, the correspondence between the test rate and the coverage distance is obtained by collation.
  • the uplink rate test is the same as the above, and is not described here. The difference from the downlink rate test is that
  • an apparatus for acquiring a coverage distance is also provided, and the apparatus is configured to implement the foregoing embodiments and preferred embodiments, and details are not described herein.
  • the term "module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • the apparatus includes: a first determining module 22, a determining module 24, and a first processing module 26, where
  • the first determining module 22 is configured to determine, according to the corresponding relationship between the test rate and the coverage distance of the pre-acquired single cell coverage test, the cumulative percentage P i when the i-th test rate in the coverage test is less than the reference rate, where P i is the coverage The ratio of the cumulative sum of the distance from the first to the i-th test rate less than the reference rate in the test, and the test distance when the i-th test rate is greater than the reference rate;
  • Determining module 24 connected to the establishment of the first determination module 22, provided the cell line P clc coverage based on a pre-acquired, it is determined whether P i is greater than P clc;
  • the first processing module 26 establishes a connection with the determining module 24, and is configured to determine that the distance D id of the i-th test rate in the coverage distance in the coverage test is less than the reference rate is a single-cell coverage test if the determination result is yes. Coverage distance.
  • the first determining module 22 is configured to determine, according to the corresponding relationship, the cumulative percentage P i when the i-th test rate in the coverage test is less than the reference rate by using the following formula, including:
  • D iu is the distance of the i-th test rate in the coverage test that is greater than the reference rate, used to subtract from D id , and the subtracted difference is summed by i from 1 to n, and the summed value is obtained. Divided by D iu to obtain P i .
  • FIG. 3 is a structural block diagram of an apparatus for acquiring a coverage distance according to an embodiment of the present invention.
  • the apparatus includes, in addition to all the modules shown in FIG.
  • the second processing module 28 establishes a connection with the determining module 24, and is configured to determine whether P i is greater than P clc according to the pre-acquired cell line coverage rate P clc , and if the determination result is negative, if D (i+ 1) If u does not exist, it is determined that D (i+1)d is the coverage distance of the single cell coverage test, i ⁇ i+1.
  • FIG. 4 is a structural block diagram of an apparatus for acquiring a coverage distance according to a preferred embodiment of the present invention.
  • the apparatus further includes:
  • the first obtaining module 19 is configured to obtain a reference rate and a cell line coverage P clc before the correspondence between the test rate and the coverage distance according to the pre-acquired single cell coverage test, where the reference rate includes at least one of the following: Base rate R u , downlink reference rate R d .
  • the foregoing apparatus further includes:
  • the second obtaining module 20 establishes a connection with the first obtaining module 19, and is configured to obtain a test rate and a coverage distance by using a single cell coverage test after acquiring the reference rate and the cell line coverage P clc ;
  • the second determining module 21 establishes a connection with the second obtaining module 20, and is configured to determine a correspondence between the test rate and the coverage distance according to the reference rate.
  • the Long Term Evolution (LTE) system is based on packet services in the overall architecture. The most intuitive experience for packet services is the download and upload rate. Therefore, some operators define the rate in the LTE system.
  • the threshold is 20M bandwidth downlink 1Mb/s and uplink 256kb/s as the rate standard for network quality measurement.
  • the rate will repeatedly fluctuate above and below the threshold, taking the test rate of the single cell coverage as an example, from the relationship between the amplification rate and the distance. It can be clearly seen that when the distance is greater than 6 kilometers, the rate fluctuates repeatedly around the reference rate. At the same time, due to the influence of the test environment, the results of each test will be very different. In the actual test, 10 Even 11 kilometers away, the signal quality can be found in the test.
  • the uplink and downlink rates far exceed the above rate threshold. So, what is the distance point that falls to the rate threshold as an effective cell radius or call drop point?
  • the wireless network planning cannot achieve the 100% satisfactory signal quality requirement, so the Cell Area Coverage Probability is proposed.
  • Concepts, different wireless environments and different user scale densities, living standards, etc. can be set to different values, such as the current rural coverage scenario in China, taking into account the user's living standards, the rural population population and other general set area coverage rate of 90% That is, in the deployment network, 10% of the area area within the coverage of the cell is allowed to not satisfy the signal quality (for example, the currently widely defined signal quality standard is RSRP > -105dbm, SINR > -3db).
  • this parameter is also the basic condition for model calculation in the wireless link propagation model.
  • the embodiment of the present invention introduces a Cell Line Coverage Probability concept P clc in the LTE single-station coverage remote, as a projection of the cell area coverage rate on the test route, that is, The test distance allowed for the (1-P clc ) ratio on the cell coverage remote test route does not meet the signal quality requirements (eg, the rate threshold for the downlink signal quality requirements is used as an indicator).
  • the specific calculation method is as follows:
  • D id is taken as the coverage distance of the single cell coverage test.
  • D iu When D iu does not exist, D id is taken as the coverage distance of the single cell coverage test.
  • i is the sequence number whose rate is less than the reference rate (R d or R u ), and the value starts from 1.
  • R d downlink reference rate (in bps)
  • R u uplink reference rate (in bps)
  • the distance corresponding to the i-th uplink test rate and the distance corresponding to the i-th downlink test rate are obtained according to the reference rate.
  • Step S501 setting a reference rate and a cell line coverage rate
  • Step S502 single station remote testing
  • Step S503 drawing a relationship diagram between the test rate and the coverage distance
  • Step S504 marking the intersection of the test rate and the reference rate fluctuation, and calculating Pi;
  • Step S505 determining whether pi is greater than Pclc
  • Step S506 Determine the coverage distance of the cell according to Formula 1.
  • FIG. 5 The flowchart of the above embodiment of the present invention is shown in FIG. 5.
  • the embodiment of the present invention proposes a criterion for determining a single cell coverage radius in an LTE system, and provides a basis for comparing different devices and different technologies to the coverage radius of the cell.
  • the standard can also be used in network remote testing to judge whether the entire network coverage meets the design requirements.
  • a storage medium is further provided, wherein the software includes the above-mentioned software, including but not limited to: an optical disk, a floppy disk, a hard disk, an erasable memory, and the like.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the method and apparatus for acquiring the coverage distance provided by the embodiment of the present invention have the following beneficial effects: the criterion for determining the coverage radius of a single cell in the LTE system proposed by the embodiment of the present invention can compare different devices and different technical pairs. The influence of the coverage radius of the cell provides a basis for determination. In addition, the standard can also be applied to network remote testing to assess whether the entire network coverage meets the design requirements.

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

Abstract

L'invention concerne un procédé et un appareil d'acquisition de distance de couverture. Le procédé consiste à : déterminer, selon une correspondance pré-acquise entre des taux d'essai et des distances de couverture dans des essais de couverture de cellule unique, un pourcentage cumulatif Pi lorsqu'un iième taux d'essai est inférieur à un taux de référence dans les essais de couverture, Pi étant le rapport d'une somme cumulative de distances auxquelles un premier taux d'essai à un iième taux d'essai sont inférieurs aux taux de référence à une distance d'essai à laquelle le iième taux d'essai est supérieur au taux de référence dans les essais de couverture ; déterminer, selon un taux de couverture de ligne de cellule pré-acquis Pclc, si Pi est ou non supérieur à Pclc ; et si le résultat de détermination est oui, déterminer qu'une distance Did à laquelle le iième taux d'essai est inférieur au taux de référence dans des distances de couverture dans les essais de couverture est une distance de couverture des essais de couverture de cellule unique. Par utilisation du schéma technique fourni dans la présente invention, le problème de manque d'un critère pour déterminer une capacité de couverture de cellule dans l'état de la technique associé est résolu.
PCT/CN2015/081578 2014-12-05 2015-06-16 Procédé et appareil d'acquisition de distance de couverture WO2016086643A1 (fr)

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CN113115219A (zh) * 2021-03-16 2021-07-13 中国联合网络通信集团有限公司 一种覆盖距离确定方法及装置
CN113115220B (zh) * 2021-03-16 2022-07-08 中国联合网络通信集团有限公司 一种覆盖距离确定方法、装置及存储介质

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