WO2011140886A1 - 一种系统间重选频次统计方法及装置 - Google Patents

一种系统间重选频次统计方法及装置 Download PDF

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Publication number
WO2011140886A1
WO2011140886A1 PCT/CN2011/073008 CN2011073008W WO2011140886A1 WO 2011140886 A1 WO2011140886 A1 WO 2011140886A1 CN 2011073008 W CN2011073008 W CN 2011073008W WO 2011140886 A1 WO2011140886 A1 WO 2011140886A1
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Prior art keywords
area update
inter
location area
routing area
user
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PCT/CN2011/073008
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English (en)
French (fr)
Inventor
李群
赵明鹤
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中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US13/696,342 priority Critical patent/US8831558B2/en
Priority to EP11780107.6A priority patent/EP2571314A4/en
Priority to JP2013509436A priority patent/JP5636494B2/ja
Publication of WO2011140886A1 publication Critical patent/WO2011140886A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/18—Network planning tools
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • 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

Definitions

  • the present invention relates to data collection and statistics techniques in a wireless communication system, and more particularly to a method and apparatus for statistically reselecting frequency between systems. Background technique
  • 3G Third-generation mobile communication technology
  • 2G second-generation mobile communication technology
  • the TD-SCDMA network Since the commercial network was built in the first phase of the city in 2007, the TD-SCDMA network has been committed to the network operation based on the evaluation of the network quality KPI (Key Performance Indicators) system, and continuously improves and optimizes the network equipment and network environment.
  • KPI Key Performance Indicators
  • the existing network KPI indicators continue to improve, the user perception has not been improved simultaneously, which directly reflects the fact that there are many customer complaints and the growth of network traffic is slow.
  • User service usage perception is the basis of user perception evaluation. It is an intuitive feeling of the user's performance and quality. If the real feeling is far from the expected value, the user may give up using the product.
  • the dual-mode user equipment adapts to the requirements to support users to smoothly interoperate in different 2/3G networks.
  • the interoperation mainly includes two aspects of reselection and handover. Re-election can be considered to be empty The behavior of changing cells between systems in idle state; switching is the behavior of changing cells between systems in the connected state.
  • TD-SCDMA/GSM interoperability the main problems of TD-SCDMA/GSM interoperability are: Frequent reselection between TD-SCDMA and GSM network systems, and too long reselection time. In the system reselection time, most of the time is unreachable for users. Time; The current test found that: TD-SCDMA and GSM reselection time is about 6 to 10 seconds, if it is under some imperfect terminals and networks, the reselection time may be longer, reaching more than 20 seconds, which means It is inaccessible in 6 to 10 seconds and cannot be called.
  • the test and location area update caused the user to be unreachable, reaching more than 20% of the total number of invalid calls, and 20% of the failures were caused by TD-SCDMA and GSM reselection or location update of the handover process. Frequent reselection of TD-SCDMA and GSM can cause terminal dead or off-network.
  • measures such as network layout and network convergence are proposed.
  • the network layout should be as continuous as possible in the hotspot area. Reducing the problem of reselection due to frequent handover between TD-SCDMA and GSM network systems, reducing the frequency of reselection between systems through hotspot coverage and area coverage; network convergence is achieved through wireless network convergence, and switching can be saved through innovative interfaces. Time, thereby increasing user perception.
  • the main object of the present invention is to provide a method and device for counting inter-system reselection frequency, which is used to realize dual mode in 3G network construction in the case where 2G and 3G networks are planned to be in different location areas in the initial stage of network construction.
  • An inter-system reselection frequency statistical method comprising: The radio network controller (RNC) collects the user log of the whole network user call process as a location area update and/or a routing area update process; the user log at least includes: a location area identification (LAI) of the calling cell And corresponding location area update information and/or a routing area identification (RAI) and corresponding routing area update information, a calling cell identifier, a call origination time, and a user identifier; and the location area update information Carrying the location area update type and the original LAI before the update, the routing area update information carries the routing area update type and the original RAI before the update;
  • LAI location area identification
  • RAI routing area identification
  • the RNC supports decoding of a non-access stratum location area update message and/or a non-access stratum routing area update message.
  • the RNC only collects the user logs whose location area update type is the normal location area update type and/or the routing area update type is the normal routing area update type.
  • the statistics of the inter-system reselection frequency are performed only by the location area update information.
  • the method for updating the location area in the statistical user log belongs to the inter-system LAI update and/or the routing area update process belongs to the inter-system RAI update inter-system reselection times as follows: respectively, searching in the inter-system network standard comparison table The system network standard corresponding to the original LAI in the call originating cell LAI and the location area update information in the user log, if the system network format corresponding to the two is different, the statistical value of the reselection frequency between the systems is accumulated;
  • the method further includes: Performing inter-system reselection frequency statistics for each user for the given time period, and generating a statistical result record for each user; if the user system reselection frequency statistics value exceeds the specified time period.
  • the preset different warning thresholds are given corresponding expert prompts in the statistical result record.
  • the method further includes: the RNC-based network-wide user call process is a user log of the location area update and/or the routing area update process, and the statistical result record, performing cell, cell group, terminal type, User groups or time periods are multi-dimensional classification statistics for keywords.
  • the present invention also provides an inter-system reselection frequency counting device, the device comprising:
  • the collection module is located at the RNC, and is used for collecting user logs of the whole network user call process for the location area update and/or the routing area update process;
  • the user log at least includes: the calling cell belonging LAI and the corresponding location area update information And/or the originating cell RAI and the corresponding routing area update information, the calling cell identifier, the calling time and the user identifier;
  • the location area update information carries the location area update type and the original LAI before the update, the routing area
  • the update information carries the routing area update type and the original RAI before the update;
  • a frequency statistics module configured to: in a given time period, the location area update process in the user log belongs to the inter-system LAI update and/or the routing area update process belongs to the inter-system RAI update inter-system reselection times, obtained in the given The inter-system reselection frequency statistics within a fixed time period.
  • the collection module only collects user logs whose location area update type is a normal location area update type and/or a routing area update type is a normal routing area update type;
  • the frequency statistics module performs statistics of the inter-system reselection frequency only by the location area update information.
  • the frequency statistics module calculates that the location area update process in the user log belongs to the inter-system LAI update and/or the routing area update process belongs to the inter-system RAI update inter-system reselection times:
  • the frequency statistics module respectively searches the system network standard corresponding to the original LAI in the calling cell LAI and the location area update information in the user log in the inter-system network standard comparison table, and determines whether the system network format corresponding to the two is the same. When the data is different, the statistical value of the reselection frequency between the systems is accumulated;
  • the frequency statistics module respectively searches the system network standard corresponding to the original RAI in the calling cell RAI and the routing area update information in the user log in the inter-system network standard comparison table, and determines whether the system network systems corresponding to the two are the same, When the same is the same, the inter-system reselection frequency statistics are accumulated.
  • the frequency statistics module is further configured to perform inter-system reselection frequency statistics in the given time period for each user, and generate a statistical result record for each user; if the given time period If the statistic value of the reselection frequency between the user systems exceeds the preset different alarm threshold, the corresponding expert prompt is given in the statistical result record.
  • the device further includes:
  • a classification and statistics module wherein the network-wide user call process based on the collection module is a user log of a location area update and/or a routing area update process, and a statistical result record generated by a frequency statistics module, for performing a cell, a cell group, and a terminal Type, user group, or time period is a multi-dimensional classification statistic for keywords.
  • the invention aims to perform statistical analysis on the UE location area or the routing area update log based on the wireless network control system when the 2G and 3G networks are planned to be different location areas in the initial stage of network construction, and monitor and analyze through the network side signaling.
  • the system performs multi-dimensional classification, which statistically reflects the distribution of re-selection frequency between dual-mode user equipment systems in 3G network construction, thereby guiding network coverage and network convergence construction planning, and improving user perception.
  • FIG. 1 is a schematic flow chart of a method for counting frequency of reselection between systems according to the present invention
  • 2 is a schematic flowchart of a method for counting frequency of reselection between systems according to an embodiment of the present invention
  • 3 is a schematic diagram of a reselection frequency statistics algorithm of the present invention
  • FIG. 4 is a schematic diagram showing the logical structure of an inter-system reselection frequency analysis apparatus according to the present invention. detailed description
  • the radio network controller acts as an intermediate link between the network side system equipment and is responsible for the radio resources of the Uu interface (interface between the RNC and the UE) and the Iub (interface between the RNC and the base station Node B), Iu (the RNC and the core network CN). Inter-interface), Iur port (interface between RNC and RNC) for the management and allocation of terrestrial transmission bearer resources.
  • the RNC can record and track the signaling and data bearer establishment and transmission process of the user's call process in the network, and the RNC is directed to users of different terminal types throughout the network. Therefore, data collection can be performed through the RNC.
  • the signaling monitoring and analysis system processes the collected data to quickly and accurately locate network-side system equipment, user equipment, and wireless environment coverage.
  • the basic idea of the present invention is that the user logs are collected by the RNC, and the network side signaling monitoring and analysis system performs statistical analysis on the user logs. Based on the situation that the 2G and 3G networks are planned to be in different location areas during the initial network construction, the location area is generated by the user. Whether the network format corresponding to the LAI or RAI before and after the update is the same to determine whether the user has re-selected between systems, and the statistics of the re-selection frequency between the systems are statistically analyzed, and the probability distribution of the re-selection frequency between systems in a certain area is reflected from the statistical point of view to guide Network layout and network integration planning and construction.
  • FIG. 1 is a schematic flowchart of a method for counting frequency of reselection between systems according to the present invention, where the method specifically includes:
  • Step 102 The radio network controller collects the entire network user call process is a user log of the location area update and/or the routing area update process, where each user log at least includes: a calling cell home location area identifier (LAI) and corresponding Location area update information and/or originating cell home routing area identifier (RAI) and corresponding routing area update information, originating cell identity, originating time and user identification
  • LAI calling cell home location area identifier
  • RAI originating cell home routing area identifier
  • the location area update information carries a location area update type and an original LAI before the update;
  • the location area update type includes a normal location area update, a periodic location area update, and an International Mobile Subscriber Identity (IMSI) attached location area update.
  • IMSI International Mobile Subscriber Identity
  • the routing area update information carries the routing area update type and the original RAI before the update; the routing area update type includes three types: normal routing area update, periodic routing area update, and IMSI attached routing area update.
  • the RNC only collects the user log whose location area update type is the normal location area update type and the routing area update type is the normal routing area update type;
  • the caller cell identifier refers to an identifier of a serving cell when the user calls for access; wherein the user identifier includes an IMSI, an International Mobile Equipment Identity (IMEI), and the like; wherein, the originating time refers to an RNC Receiving the time of the RRC connection request sent by the UE; preferably, the radio network controller supports decoding of the non-access stratum location area update and/or the non-access stratum routing area update message, and acquiring and saving the location area update information And routing area update information.
  • IMEI International Mobile Equipment Identity
  • Step 104 Perform segmentation at an inter-system reselection frequency statistical interval in a given time period.
  • the location area update process in the user log in each segment belongs to the frequency of inter-system LAI update and/or the routing area update process belongs to The frequency of inter-system RAI updates, generating inter-system reselection frequency statistics for segments, and accumulating inter-system reselection frequency statistics within all inter-system reselection frequency statistical interval segments, thereby obtaining the given time at the given time Inter-system reselection frequency statistics within the segment.
  • the inter-system reselection frequency statistics interval refers to a length of time in which inter-system reselection cannot be tolerated.
  • the method for identifying the LAI update between the systems is: searching the system network standard corresponding to the original LAI in the calling cell LAI and the location area update information in the user log in the inter-system network standard comparison table, respectively, if If the corresponding system network system is different, it is considered that the location area update process in the user log belongs to the inter-system LAI update;
  • the method for identifying the RAI update between the systems is: searching the system network standard corresponding to the original RAI in the calling cell RAI and the location area update information in the user log in the inter-system network standard comparison table, respectively, if the two correspond to The system network system is different, and it is considered that the routing area update process in the user log belongs to the inter-system RAI update;
  • the inter-system network standard comparison table to which the LAI or RAI belongs is maintained and managed by the network side signaling monitoring and analysis system.
  • the inter-system reselection frequency statistics are only performed according to the circuit domain location area update information.
  • the step performs, for each user, an inter-system reselection frequency statistic within the given time period and the inter-system reselection frequency statistical interval segment, and generates a statistical result record for each user, the statistic
  • the result record includes at least a user identifier and an inter-system reselection frequency statistic value within the given time period and the inter-system reselection frequency statistical interval segment, and the statistical result record is used for subsequent classification statistics.
  • Step 106 The RNC-based network-wide user call process is a user log of a location area update and/or a routing area update process, and a statistical result record generated in step 104, performed by a cell, a cell group, a terminal type, a user group, or
  • the time period is the multi-dimensional classification statistics of the keywords, thereby obtaining an inter-system reselection frequency probability distribution based on the network area, the user equipment type, or the time interval, and guiding the network layout optimization and the terminal performance optimization warning prompt.
  • the user equipment type is based on the first eight digits in the user identifier, and the number includes the TAC (Type Approval Code) and the FAC (Final Assembly Code) information indicating the user equipment. Type identity.
  • FIG. 2 is a schematic flow chart of a specific example of a method for counting frequency of reselection between systems according to the present invention, which mainly includes the following steps:
  • Step 201 The RNC collects the entire network user call process is a user log of the location area update or the routing area update process;
  • the generated user log includes: the calling cell home LAI and RAI, the routing area update information and the location area update information, the calling cell, the originating time, and the user identity.
  • the UE initiates a call to the network side to initiate a radio resource control (RRC, Radio Resource Conctrol) connection request.
  • RRC Radio Resource Control
  • the RNC supports standard signaling decoding of non-access stratum location area update messages and/or routing area update messages, and saves location area updates and routing area update information.
  • the originating cell belongs to both the LAI and the RAI, and the LAI and RAI to which the serving cell belongs when the UE establishes an RRC connection request with the wireless network;
  • the identification information of the UE may be one of the following identifiers: a user telephone number, an International Mobile Subscriber Identity (IMSI), an International Mobile Identity (IMEI), a Radio Network Temporary Identity (U-RNTI), and a Cell Radio Network Temporary Identity (C) -RNTI), a packet domain temporary identity code (P-TMSI) and a temporary identity code (TMSI).
  • IMSI International Mobile Subscriber Identity
  • IMEI International Mobile Identity
  • U-RNTI Radio Network Temporary Identity
  • C Cell Radio Network Temporary Identity
  • P-TMSI packet domain temporary identity code
  • TMSI temporary identity code
  • the identity information of the UE may also include only one of them;
  • Step 202 The network side signaling monitoring and analysis system performs initialization before re-selection frequency statistics between user systems, and sets an inter-system reselection frequency statistical period T1, an inter-system reselection frequency statistical interval T2, and an inter-system reselection frequency warning. Threshold or interval, counter ⁇ for T1 and counter B(i) for each statistical interval, and initialize the above variable parameters;
  • the network side signaling monitoring and analysis system supports an inter-system network standard comparison table for maintaining the location area or the routing area, and is used for the retrieval of the network standard between the LAI or the RAI belonging to different systems.
  • T1 the time unit of T1 can be days;
  • the given time period T1 is set, and the interval is segmented by T2; T2 means that the length of inter-system reselection cannot be tolerated, and T1 is an integral multiple of T2.
  • Step 203 The network side signaling monitoring and analysis system selects each T2(i) interval in the T1 time period, according to the user log of the network, according to the first user log record in each T2(i), if the retrieval occurs, m
  • the user log of the secondary normal location area update process wherein the original LAI of the originating cell home LAI and the location area update information belongs to different system network standards, and the inter-system reselection frequency counter B(i) of the user in T2(i) is equal to m
  • the inter-system reselection frequency of the user in T2(i) Counter B(i) is equal to n;
  • the inter-system reselection frequency statistics are only performed according to the circuit domain location area update information, that is, if the T2(i) time period is retrieved, When m normal position area update and n normal routing area update occur, the inter-system reselection frequency counter B(i) of the user in T2(i) should be less than or equal to m+n.
  • Step 204 Accumulate the counter B(i) in the (( T1/T2 ) - 1 ) all T2 time interval as the counter B, and obtain the statistics of the inter-system reselection frequency of the UE in the T1 time period;
  • Step 205 Compare each user's counter B of the T1 time period with T3, or determine whether it falls within the T3-T4 interval. If the counter B is greater than T3 or falls within T3-T4, an expert prompt is given, and a corresponding
  • the statistical result record includes at least a user identifier, an inter-system reselection frequency statistics value of each T2 interval, and/or an inter-system reselection frequency statistics value in a T1 time period.
  • Step 206 The network side signaling monitoring and analysis system can obtain the above statistical result record and use Based on the user log, the statistics are classified according to the cell, the cell group, the terminal type, and the time; since the IMEI reflects the terminal model and the manufacturer. Therefore, it is reflected from different angles that the coverage of the network area is unreasonable, resulting in abnormal performance of the area or user equipment, and frequent reselection between systems.
  • Step 207 The network side signaling monitoring and analysis system displays the statistical result.
  • the present invention provides an inter-system reselection frequency statistics device.
  • the device includes: a collection module, a frequency statistics module, and a classification and statistics module, and the specific description is as follows:
  • the collection module is located at the RNC, and is used for collecting user logs of the whole network user call process for the location area update and/or the routing area update process;
  • the user log at least includes: the calling cell belonging LAI and the corresponding location area update information And/or the originating cell RAI and the corresponding routing area update information, the routing area update information and/or the location area update information, the originating cell identity, the originating time and the user identity; the location area update information carrying the location area update Type and the original LAI before the update, the routing area update information carries the routing area update type and the original RAI before the update;
  • the frequency statistics module is located in the signaling monitoring and analysis system, and is used for counting the location area update process in the user log within a given time period, belonging to the inter-system LAI update and/or the routing area update process belonging to the inter-system RAI update system. The number of reselections obtains the statistics of the inter-system reselection frequency within the given time period.
  • the collection module only collects the user log whose location location update type is the normal location area update type and/or the routing area update type is the normal routing area update type, thereby saving the space occupied by the RNC for saving the user log. , improve the efficiency of collection;
  • the frequency statistics module performs the statistics of the inter-system reselection frequency only by the location area update information.
  • the frequency statistics module collects a system in which the location area update process in the user log belongs to the inter-system LAI update and/or the routing area update process belongs to the inter-system RAI update system. Number of re-elections:
  • the frequency statistics module respectively searches the system network standard corresponding to the original LAI in the calling cell LAI and the location area update information in the user log in the inter-system network standard comparison table, and determines whether the system network format corresponding to the two is the same. When the data is different, the statistical value of the reselection frequency between the systems is accumulated;
  • the frequency statistics module respectively searches the system network standard corresponding to the original RAI in the calling cell RAI and the location area update information in the user log in the inter-system network standard comparison table, and determines whether the system network systems corresponding to the two are the same, When the same is the same, the inter-system reselection frequency statistics are accumulated.
  • the frequency statistics module is further configured to perform inter-system reselection frequency statistics in the given time period for each user, and generate a statistical result record for each user; if the user within the given time period If the inter-system reselection frequency statistics exceed the preset different alarm thresholds, the corresponding expert prompts are given in the statistical result records.
  • the classification and statistics module is located in the signaling monitoring and analysis system, and the user-wide call process based on the collection module is a user log of the location area update and/or routing area update process and a statistical result record generated by the frequency statistics module. Perform multi-dimensional classification statistics with cells, cell groups, terminal types, user groups, or time segments as keywords.
  • the invention collects the user logs of the call process of the entire network through the RNC.
  • the signaling monitoring and analysis system classifies statistics from multiple dimensions according to the statistical algorithm of the present invention, and acquires the system based on the network area or the user equipment type in a certain statistical period. Re-select the frequency distribution trend with frequent frequency, and guide the network layout optimization and terminal performance optimization warning prompts.
  • the analysis granularity of the invention can reach the cell level, and is more conducive to guiding the network area coverage layout and the network convergence construction planning, and improving user perception.

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Abstract

本发明公开了一种系统间重选频次统计方法及装置，用于实现在建网初期2G和3G网络规划为不同位置区的情况下，3G网络建设中对双模用户设备系统间重选频次的统计分析。本发明针对建网初期2G和3G网络规划为不同位置区的情况下，基于无线网络控制系统进行数据采集，对UE位置区或路由区更新日志进行统计分析，通过网络侧信令监测和分析系统进行多维度分类，从统计意义上反映用户在3G网络建设中双模用户设备系统间重选频次的分布，从而指导网络区域覆盖布局以及网络融合建设规划，提高用户感知。

Description

一种系统间重选频次统计方法及装置 技术领域
本发明涉及无线通信系统中的数据釆集和统计技术， 尤其涉及一种系 统间重选频次统计方法及装置。 背景技术
随着我国第三代移动通讯技术（3G )运营牌照的发放， 宣告 3G进入 商用时代， 与第二代移动通讯技术（2G ) 网络相比， 3G网络和设备的商用 成熟化在建网初期面临着很大挑战。 一方面需要优化网络配置、 提升网络 侧系统设备和用户终端（ User Equipment , UE )性能； 另一方面需要从用户 感知角度出发， 提升用户的对业务使用感知、 业务服务感知以及业务计费 感知。
TD-SCDMA网络从 2007年一期城市建网商用至今， 一直致力于网络 运行依据网络质量 KPI (关键性能指标 )体系的评价， 对网络设备和网络环 境不断改进和优化。 然而在现有网络 KPI指标不断提升圓满的同时， 用户 感知度并没有得到同步的提升， 直接反映是客户投诉多， 网络话务量增长 迟緩。
用户业务使用感知是用户感知评价基础， 它是用户对产品的性能、 质 量的一种直观感受， 如果真实感觉与期望值相隔甚远， 用户可能会放弃使 用该产品。
3G网和 2G网建设相比覆盖难免会有一些盲点， 在网络建设初期需要 借助于 GSM网络的覆盖优势来完善 TD的覆盖， 因此， 3G网和 2G网的互 操作技术得到发展。 双模用户设备适应需求支持用户在不同 2/3G网平滑互 操作， 所述互操作主要包括重选和切换两个方面。 重选可以认为它是在空 闲状态下在系统间更换小区的行为； 切换是在连接状态下， 在系统间变更 小区的行为。
目前 TD-SCDMA/GSM互操作主要存在的问题是： TD-SCDMA和 GSM 网络系统间重选频繁、 每次重选时间过长， 在系统重选时间里， 艮大部分 时间是用户不可及的时间； 目前测试发现： TD-SCDMA和 GSM重选时长 在 6到 10秒左右， 如果是在某些不完善的终端和网络下， 重选时间可能会 更长， 达到 20秒以上， 也就意味着在 6到 10秒时间内都不可及， 无法被 叫。 根据测试结果统计， 由于测试和位置区更新导致用户不可及， 达到无 法呼叫总数的 20%以上， 20%的未接通都是由于 TD-SCDMA和 GSM重选 或切换过程位置更新造成的。 TD-SCDMA和 GSM频繁重选会诱发终端死 机或脱网。
针对上述问题提出了网络布局、 网络融合等措施。 为了减少系统间频 繁的互操作， 网络布局时应该尽可能做到热点区域的连续覆盖。 减少由于 TD-SCDMA和 GSM网络系统间频繁切换导致重选的问题， 通过热点覆盖 和区域覆盖减少系统间重选的频次； 网络融合通过无线网融合的方式实现， 通过创新型接口， 可以节省切换时间， 从而提高用户的感知。
但如何基于网络数据釆集对系统间重选频次进行分析， 从而指导网络 区域覆盖布局以及网络融合建设规划， 提高用户感知， 现有技术中还没有 具体的实现方案。 发明内容
有鉴于此， 本发明的主要目的在于提供一种系统间重选频次统计方法 及装置， 用于实现在建网初期 2G和 3G网络规划为不同位置区的情况下， 3G网络建设中对双模用户设备系统间重选频次的统计分析。
为达到上述目的， 本发明的技术方案是这样实现的：
一种系统间重选频次统计方法， 该方法包括： 无线网络控制器 （RNC )釆集全网用户呼叫过程为位置区更新和 /或路 由区更新过程的用户日志； 所述用户日志至少包含： 起呼小区归属位置区 标识（ Location Area Identification, LAI )及相应的位置区更新信息和 /或起 呼小区归属路由区标识 ( Routing Area Identification, RAI )及相应的路由区 更新信息、 起呼小区标识、 起呼时刻和用户标识； 所述位置区更新信息携 带位置区更新类型及更新前的原 LAI, 所述路由区更新信息携带路由区更 新类型及更新前的原 RAI;
在给定时间段内，统计所述用户日志中位置区更新过程属于系统间 LAI 更新和 /或路由区更新过程属于系统间 RAI更新的系统间重选次数， 获得在 所述给定时间段内的系统间重选频次统计值。
进一步地，所述 RNC支持非接入层位置区更新消息和 /或非接入层路由 区更新消息的解码。
进一步地， 所述 RNC只釆集位置区更新类型为正常位置区更新类型和 /或路由区更新类型为正常路由区更新类型的用户日志。
进一步地， 当用户日志同时包含路由区更新信息和位置区更新信息时， 只按位置区更新信息进行所述系统间重选频次的统计。
进一步地， 所述统计用户日志中位置区更新过程属于系统间 LAI更新 和 /或路由区更新过程属于系统间 RAI更新的系统间重选次数的方法为： 分别在系统间网络制式对照表中检索用户日志中的起呼小区归属 LAI 和位置区更新信息中更新前原 LAI对应的系统网络制式， 若两者对应的系 统网络制式不相同， 则累加所述系统间重选频次统计值；
分别在系统间网络制式对照表中检索用户日志中起呼小区归属 RAI和 路由区更新信息中更新前原 RAI对应的系统网络制式， 若两者对应的系统 网络制式不相同， 则累加所述系统间重选频次统计值。
进一步地， 所述方法还包括： 针对每个用户进行在所述给定时间段内的系统间重选频次统计， 并生 成针对每个用户的统计结果记录； 若所述给定时间段内的用户系统间重选 频次统计值超过预设的不同预警门限， 则在所述统计结果记录中给出相应 的专家提示。
进一步地， 所述方法还包括： 基于 RNC釆集的全网用户呼叫过程是位 置区更新和 /或路由区更新过程的用户日志及所述统计结果记录， 进行以小 区、 小区组、 终端类型、 用户组或时间段为关键字的多维度分类统计。
基于上述方法， 本发明还提出一种系统间重选频次统计装置， 该装置 包括：
釆集模块， 位于 RNC , 用于釆集全网用户呼叫过程为位置区更新和 / 或路由区更新过程的用户日志； 所述用户日志至少包含：起呼小区归属 LAI 及相应的位置区更新信息和 /或起呼小区归属 RAI及相应的路由区更新信 息、 起呼小区标识、 起呼时刻和用户标识； 所述位置区更新信息携带位置 区更新类型及更新前的原 LAI, 所述路由区更新信息携带路由区更新类型 及更新前的原 RAI;
频次统计模块， 用于在给定时间段内， 统计用户日志中位置区更新过 程属于系统间 LAI更新和 /或路由区更新过程属于系统间 RAI更新的系统间 重选次数， 获得在所述给定时间段内的系统间重选频次统计值。
进一步地， 所述釆集模块只釆集位置区更新类型为正常位置区更新类 型和 /或路由区更新类型为正常路由区更新类型的用户日志；
若所述用户日志同时包含路由区更新信息和位置区更新信息， 则所述 频次统计模块只按位置区更新信息进行所述系统间重选频次的统计。
进一步地， 所述频次统计模块统计用户日志中位置区更新过程属于系 统间 LAI更新和 /或路由区更新过程属于系统间 RAI更新的系统间重选次数 的方法为： 所述频次统计模块分别在系统间网络制式对照表中检索用户日志中的 起呼小区归属 LAI和位置区更新信息中更新前原 LAI对应的系统网络制式， 判断两者对应的系统网络制式是否相同， 不相同时累加所述系统间重选频 次统计值；
所述频次统计模块分别在系统间网络制式对照表中检索用户日志中起 呼小区归属 RAI和路由区更新信息中更新前原 RAI对应的系统网络制式， 判断两者对应的系统网络制式是否相同， 不相同时累加所述系统间重选频 次统计值。
进一步地， 所述频次统计模块还用于针对每个用户进行在所述给定时 间段内的系统间重选频次统计， 并生成针对每个用户的统计结果记录； 若 所述给定时间段内的用户系统间重选频次统计值超过预设的不同预警门 限， 则在所述统计结果记录中给出相应的专家提示。
进一步地， 所述装置还包括：
分类统计模块， 用于基于釆集模块釆集的全网用户呼叫过程是位置区 更新和 /或路由区更新过程的用户日志以及频次统计模块生成的统计结果记 录， 进行以小区、 小区组、 终端类型、 用户组或时间段为关键字的多维度 分类统计。
本发明针对建网初期 2G和 3G网络规划为不同位置区的情况下， 基于 无线网络控制系统进行数据釆集，对 UE位置区或路由区更新日志进行统计 分析， 通过网络侧信令监测和分析系统进行多维度分类， 从统计意义上反 映用户在 3G网络建设中双模用户设备系统间重选频次的分布，从而指导网 络区域覆盖布局以及网络融合建设规划， 提高用户感知。 附图说明
图 1为本发明系统间重选频次统计方法的流程示意图；
图 2为本发明具体实施例中系统间重选频次统计方法的流程示意图； 图 3为本发明重选频次统计算法示意图；
图 4为本发明系统间重选频次分析装置的逻辑结构示意图。 具体实施方式
以下首先对本发明的实现原理和基本思想进行描述；
无线网络控制器 ( RNC )作为网络侧系统设备的中间环节， 负责 Uu 口 （ RNC和 UE之间接口）无线资源以及 Iub ( RNC和基站 Node B之间接 口）、 Iu ( RNC和核心网 CN之间接口）、 Iur口 （ RNC和 RNC之间接口） 的地面传输承载资源的管理和分配。 用户呼叫过程在网络中的信令和数据 承载建立以及传输过程， RNC都能进行记录和跟踪， 而且 RNC面向的是全 网不同终端类型用户， 因此， 可通过 RNC进行数据釆集， 由网络侧信令监 测和分析系统对釆集数据进行处理， 以快速、 准确地定位网络侧系统设备、 用户设备以及无线环境覆盖的问题。
本发明的基本思想是， 由 RNC釆集用户日志， 网络侧信令监测和分析 系统对用户日志进行统计分析， 基于建网初期 2G和 3G网络规划为不同位 置区的情况， 通过用户发生位置区更新之前和之后的 LAI或 RAI对应的网 络制式是否相同来判断用户是否发生了系统间重选， 对系统间重选频次进 行统计， 从统计角度反映一定区域系统间重选频次概率分布， 以指导网络 布局和网络融合规划建设。
下面结合附图对技术方案的实施作进一步的详细描述。
图 1 为本发明系统间重选频次统计方法的流程示意图， 该方法具体包 括：
步骤 102: 无线网络控制器釆集全网用户呼叫过程是位置区更新和 /或 路由区更新过程的用户日志， 其中， 每个用户日志至少包含： 起呼小区归 属位置区标识 （LAI )及相应的位置区更新信息和 /或起呼小区归属路由区 标识（ RAI )及相应的路由区更新信息、 起呼小区标识、 起呼时刻和用户标 其中， 所述位置区更新信息携带位置区更新类型及更新前的原 LAI; 所述位置区更新类型包括正常位置区更新、 周期性位置区更新和国际移动 用户识别码（IMSI ) 附着位置区更新三种类型；
所述路由区更新信息携带路由区更新类型及更新前的原 RAI; 所述路 由区更新类型包括正常路由区更新、周期性路由区更新和 IMSI附着路由区 更新三种类型；
优选地， RNC只釆集位置区更新类型为正常位置区更新类型、 路由区 更新类型为正常路由区更新类型的用户日志；
其中， 所述起呼小区标识指用户呼叫接入时的服务小区的标识； 其中， 所述用户标识包含 IMSI、 国际移动设备身份识别码（IMEI )等； 其中， 所述起呼时刻是指 RNC收到 UE发送的 RRC连接请求的时刻； 优选地， 无线网络控制器支持非接入层位置区更新和 /或非接入层路由 区更新消息的解码， 并获取和保存所述位置区更新信息和路由区更新信息。
步骤 104: 在给定时间段， 以系统间重选频次统计间隔进行分段， 在每 个分段内统计用户日志中位置区更新过程属于系统间 LAI更新的频次和 /或 路由区更新过程属于系统间 RAI更新的频次， 生成针对分段的系统间重选 频次统计值， 并累加所有系统间重选频次统计间隔分段内的系统间重选频 次统计值， 从而获得在所述给定时间段内的系统间重选频次统计值。
其中， 所述系统间重选频次统计间隔是指不能容忍出现系统间重选的 时长。
其中， 所述系统间 LAI更新的识别方法为： 分别在系统间网络制式对 照表中检索用户日志中的起呼小区归属 LAI和位置区更新信息中更新前原 LAI对应的系统网络制式， 若两者对应的系统网络制式不相同， 则认为用 户日志中位置区更新过程属于系统间 LAI更新； 其中 , 所述系统间 RAI更新的识别方法为： 分别在系统间网络制式对 照表中检索用户日志中起呼小区归属 RAI 和位置区更新信息中更新前原 RAI对应的系统网络制式， 若两者对应的系统网络制式不相同， 则认为用 户日志中路由区更新过程属于系统间 RAI更新；
其中， LAI或 RAI归属的系统间网络制式对照表由网络侧信令监测和 分析系统负责维护和管理。
优选地， 当用户日志同时包含分组域路由区更新信息和电路域位置区 更新信息时， 只按电路域位置区更新信息进行系统间重选频次统计。
优选地， 该步骤针对每个用户进行在所述给定时间段及系统间重选频 次统计间隔分段内的系统间重选频次统计， 并生成针对每个用户的统计结 果记录， 所述统计结果记录至少包括用户标识及所述给定时间段及系统间 重选频次统计间隔分段内的系统间重选频次统计值， 所述统计结果记录用 于后续的分类统计。
步骤 106: 基于 RNC釆集的全网用户呼叫过程是位置区更新和 /或路由 区更新过程的用户日志， 及步骤 104生成的统计结果记录， 进行以小区、 小区组、 终端类型、 用户组或时间段为关键字的多维度分类统计， 从而获 得基于网络区域、 用户设备类型、 或时间区间的系统间重选频次概率分布， 指导网络布局优化和终端性能优化的预警提示。
其中， 用户设备类型是基于用户标识中的 ΙΜΕΙ前八位数字， 该数字包 含了 TAC ( Type Approval Code , 为设备型号核准号码） 和 FAC ( Final Assembly Code, 为最后装配号码）信息， 表明用户设备的类型身份。
图 2为本发明系统间重选频次统计方法的具体实例流程示意图， 主要 包括以下步骤：
步骤 201 : RNC釆集全网用户呼叫过程是位置区更新或路由区更新过 程的用户日志； 本发明中， 生成的用户日志包含： 起呼小区归属 LAI和 RAI、 路由区 更新信息和位置区更新信息、 起呼小区、 起呼时刻和用户标识。
在 3G网络中， UE发起呼叫指向网络侧发起无线资源控制（ RRC, Radio Resource Conctrol )连接请求。 RNC支持非接入层位置区更新消息和 /或路 由区更新消息的标准信令解码， 并保存位置区更新和路由区更新信息。
起呼小区归属 LAI和 RAI都是指示 UE同无线网络建立 RRC连接请求 时 , 服务小区归属的 LAI和 RAI;
UE的标识信息可以为以下标识之一： 用户电话号码、 国际移动用户识 别码（ IMSI )、国际移动身份识别码 ( IMEI )、无线网络暂时标识（ U-RNTI )、 小区无线网络暂时标识 （C-RNTI )、 分组域临时身份识别码 ( P-TMSI )和 临时身份识别码（ TMSI ), 对于 P-TMSI和 TMSI, UE的标识信息也可仅包 含二者之一；
步骤 202: 网络侧信令监测和分析系统执行用户系统间重选频次统计之 前的初始化 , 设定系统间重选频次统计时间段 T1、 系统间重选频次统计间 隔 T2、 系统间重选频次预警门限或区间、 针对 T1的计数器 Β和针对每个 统计间隔的计数器 B(i), 并初始化上述变量参数；
网络侧信令监测和分析系统支持维护位置区或路由区归属的系统间网 络制式对照表， 用于 LAI或 RAI归属不同系统间网络制式的检索。
设置系统间重选频次统计时间段 T1 , 并以以系统间重选频次统计间隔 T2进行分段， 例如： T1的时间单位可为天；
如图 3所示， 设置给定时间段 T1 , 以间隔 T2进行分段； T2是指不能 容忍出现系统间重选的时长， 且 T1是 T2的整数倍。
设置用户系统间重选频次预警门限 T3或区间 T3-T4, 并针对不同的预 警门限或预警门限区间， 当单个用户在 T1或 T2统计时间段内的系统间重 选频次累积值超过预警门限或落入预警门限区间时， 在统计结果记录中给 出专家提示， 所述专家提示如： 频次正常、 频次较高和频次过高。
设置针对 T1的用户系统间重选频次计数器 B, 及针对每个 T2间隔的 用户系统间重选频次计数器 B(i), i = 0.... ( ( T1/T2 ) -1 ), 在起始统计时都 初始 为 o。
步骤 203: 网络侧信令监测和分析系统选定 T1时间段内每 T2(i)间隔， 根据网络的用户日志， 按照每 T2(i)内首个用户日志记录生成后， 若检索发 生了 m次正常位置区更新过程的用户日志， 其中起呼小区归属 LAI和位置 区更新信息中原 LAI归属不同系统网络制式， 则 T2(i)内用户的系统间重选 频次计数器 B(i)等于 m, 同理，若检索发生了 n次正常路由区更新过程的用 户日志， 其中起呼小区归属 RAI和路由区更新信息中原 RAI归属不同系统 网络制式， 则 T2(i)内用户的系统间重选频次计数器 B(i)等于 n;
若用户日志同时包含分组域路由区更新信息和电路域位置区更新信息 时， 只按电路域位置区更新信息进行系统间重选频次统计， 即， 若在 T2(i) 时间段内， 检索到发生了 m次正常位置区更新和 n次正常路由区更新， 则 T2(i)内用户的系统间重选频次计数器 B(i)应小于等于 m+n。
该步骤中， 网络侧信令监测和分析系统循环执行每个 T2(i)间隔内的系 统间重选频次的统计， 直到 i = ( ( T1/T2 ) - 1 ) 时循环结束。
步骤 204: 将（（ T1/T2 ) - 1 )个所有 T2时间间隔内计数器 B(i)累加结 果为计数器 B, 得到 T1时间段的 UE系统间重选频次统计值；
步骤 205: 将每个用户该 T1时间段的计数器 B同 T3比较， 或判决是 否落在 T3-T4区间，如果计数器 B大于 T3或落在 T3-T4，则给出专家提示， 并生成相应的统计结果记录， 所述统计结果记录中至少包含用户标识、 每 个 T2间隔的系统间重选频次统计值和 /或 T1时间段内的系统间重选频次统 计值。
步骤 206: 网络侧信令监测和分析系统可在获得上述统计结果记录及用 户日志的基础上， 按照小区、 小区组、 终端类型和时间进行分类统计； 由 于 IMEI是反映终端型号和厂家的。 因此， 从不同角度来反映网络区域覆盖 布局不合理导致区域或用户设备性能异常， 频发系统间重选的现象。
步骤 207: 网络侧信令监测和分析系统对统计结果进行展示。
基于上述方法， 本发明提出一种系统间重选频次统计装置， 如图 4所 示， 该装置包括： 釆集模块、 频次统计模块及分类统计模块， 具体描述如 下：
釆集模块， 位于 RNC , 用于釆集全网用户呼叫过程为位置区更新和 / 或路由区更新过程的用户日志； 所述用户日志至少包含：起呼小区归属 LAI 及相应的位置区更新信息和 /或起呼小区归属 RAI及相应的路由区更新信 息、 路由区更新信息和 /或位置区更新信息、 起呼小区标识、 起呼时刻和用 户标识； 所述位置区更新信息携带位置区更新类型及更新前的原 LAI, 所 述路由区更新信息携带路由区更新类型及更新前的原 RAI;
频次统计模块， 位于信令监测和分析系统中， 用于在给定时间段内， 统计用户日志中位置区更新过程属于系统间 LAI更新和 /或路由区更新过程 属于系统间 RAI更新的系统间重选次数， 获得在所述给定时间段内的系统 间重选频次统计值。
进一步地， 所述釆集模块只釆集位置区更新类型为正常位置区更新类 型和 /或路由区更新类型为正常路由区更新类型的用户日志，从而节省 RNC 用于保存用户日志所占用的空间， 提高釆集效率；
进一步地， 当所述用户日志同时包含路由区更新信息和位置区更新信 息时， 所述频次统计模块只按位置区更新信息进行所述系统间重选频次的 统计。
进一步地， 所述频次统计模块通过如下方式统计用户日志中位置区更 新过程属于系统间 LAI更新和 /或路由区更新过程属于系统间 RAI更新的系 统间重选次数：
所述频次统计模块分别在系统间网络制式对照表中检索用户日志中的 起呼小区归属 LAI和位置区更新信息中更新前原 LAI对应的系统网络制式， 判断两者对应的系统网络制式是否相同， 不相同时累加所述系统间重选频 次统计值；
所述频次统计模块分别在系统间网络制式对照表中检索用户日志中起 呼小区归属 RAI和位置区更新信息中更新前原 RAI对应的系统网络制式， 判断两者对应的系统网络制式是否相同， 不相同时累加所述系统间重选频 次统计值。
所述频次统计模块还用于针对每个用户进行在所述给定时间段内的系 统间重选频次统计， 并生成针对每个用户的统计结果记录； 若所述给定时 间段内的用户系统间重选频次统计值超过预设的不同预警门限， 则在所述 统计结果记录中给出相应的专家提示。
分类统计模块， 位于信令监测和分析系统中， 用于基于釆集模块釆集 的全网用户呼叫过程是位置区更新和 /或路由区更新过程的用户日志以及频 次统计模块生成的统计结果记录， 进行以小区、 小区组、 终端类型、 用户 组或时间段为关键字的多维度分类统计。
本发明通过 RNC对全网用户呼叫过程的用户日志釆集， 信令监测和分 析系统根据本发明统计算法， 从多种维度分类统计， 在一定统计周期获取 基于网络区域或用户设备类型的系统间重选频次频繁的概率分布趋势， 指 导网络布局优化和终端性能优化的预警提示。 同基于核心网数据釆集分析 相比， 本发明分析粒度可到小区级， 更有利于指导网络区域覆盖布局以及 网络融合建设规划， 提高用户感知。
以上所述， 仅为本发明的较佳实施例而已， 并非用于限定本发明的保 护范围。

Claims

权利要求书
1、 一种系统间重选频次统计方法， 其特征在于， 该方法包括： 无线网络控制器 RNC 釆集全网用户呼叫过程为位置区更新和 /或路由 区更新过程的用户日志； 所述用户日志至少包含： 起呼小区归属位置区标 识 LAI及相应的位置区更新信息和 /或起呼小区归属路由区标识 RAI及相应 的路由区更新信息、 起呼小区标识、 起呼时刻、 用户标识； 所述位置区更 新信息携带位置区更新类型及更新前的原位置区标识 LAI, 所述路由区更 新信息携带路由区更新类型及更新前的原路由区标识 RAI;
在给定时间段内， 统计所述用户日志中位置区更新过程属于系统间位 置区标识 LAI更新和 /或路由区更新过程属于系统间路由区标识 RAI更新的 系统间重选次数， 获得在所述给定时间段内的系统间重选频次统计值。
2、 根据权利要求 1 所述的方法， 其特征在于， 所述无线网络控制器 RNC支持非接入层位置区更新消息和 /或非接入层路由区更新消息的解码。
3、 根据权利要求 1 所述的方法， 其特征在于， 所述无线网络控制器 RNC 只釆集位置区更新类型为正常位置区更新类型和 /或路由区更新类型 为正常路由区更新类型的用户曰志。
4、 根据权利要求 1、 2或 3所述的方法， 其特征在于， 当用户日志同 时包含路由区更新信息和位置区更新信息时， 只按位置区更新信息进行所 述系统间重选频次的统计。
5、 根据权利要求 1所述的方法， 其特征在于， 所述统计用户日志中位 置区更新过程属于系统间位置区标识 LAI更新和 /或路由区更新过程属于系 统间路由区标识 RAI更新的系统间重选次数的方法为：
分别在系统间网络制式对照表中检索用户日志中的起呼小区归属位置 区标识 LAI和位置区更新信息中更新前原位置区标识 LAI对应的系统网络 制式， 若两者对应的系统网络制式不相同， 则累加所述系统间重选频次统 计值；
分别在系统间网络制式对照表中检索用户日志中起呼小区归属路由区 标识 RAI和路由区更新信息中更新前原路由区标识 RAI对应的系统网络制 式， 若两者对应的系统网络制式不相同， 则累加所述系统间重选频次统计 值。
6、 根据权利要求 1所述的方法， 其特征在于， 所述方法还包括： 针对每个用户进行在所述给定时间段内的系统间重选频次统计， 并生 成针对每个用户的统计结果记录；
若所述给定时间段内的用户系统间重选频次统计值超过预设的不同预 警门限， 则在所述统计结果记录中给出相应的专家提示。
7、 根据权利要求 6所述的方法， 其特征在于， 所述方法还包括： 基于无线网络控制器 RNC 釆集的全网用户呼叫过程是位置区更新和 / 或路由区更新过程的用户日志及所述统计结果记录， 进行以小区、 小区组、 终端类型、 用户组或时间段为关键字的多维度分类统计。
8、 一种系统间重选频次统计装置， 其特征在于， 该装置包括： 釆集模块， 位于无线网络控制器 RNC , 用于釆集全网用户呼叫过程为 位置区更新和 /或路由区更新过程的用户日志； 所述用户日志至少包含： 起 呼小区归属位置区标识 LAI及相应的位置区更新信息和 /或起呼小区归属路 由区标识 RAI及相应的路由区更新信息、 起呼小区标识、 起呼时刻和用户 标识； 所述位置区更新信息携带位置区更新类型及更新前的原位置区标识 LAI, 所述路由区更新信息携带路由区更新类型及更新前的原路由区标识 RAI;
频次统计模块， 用于在给定时间段内， 统计用户日志中位置区更新过 程属于系统间位置区标识 LAI更新和 /或路由区更新过程属于系统间路由区 标识 RAI更新的系统间重选次数， 获得在所述给定时间段内的系统间重选 频次统计值。
9、 根据权利要求 8所述的装置， 其特征在于， 所述釆集模块只釆集位 置区更新类型为正常位置区更新类型和 /或路由区更新类型为正常路由区更 新类型的用户日志；
若所述用户日志同时包含路由区更新信息和位置区更新信息， 则所述 频次统计模块只按位置区更新信息进行所述系统间重选频次的统计。
10、 根据权利要求 8所述的装置， 其特征在于， 所述频次统计模块统 计用户日志中位置区更新过程属于系统间位置区标识 LAI更新和 /或路由区 更新过程属于系统间路由区标识 RAI更新的系统间重选次数的方法为： 所述频次统计模块分别在系统间网络制式对照表中检索用户日志中的 起呼小区归属位置区标识 LAI 和位置区更新信息中更新前原位置区标识 LAI对应的系统网络制式， 判断两者对应的系统网络制式是否相同， 不相 同时累加所述系统间重选频次统计值；
所述频次统计模块分别在系统间网络制式对照表中检索用户日志中起 呼小区归属路由区标识 RAI和路由区更新信息中更新前原路由区标识 RAI 对应的系统网络制式， 判断两者对应的系统网络制式是否相同， 不相同时 累加所述系统间重选频次统计值。
11、 根据权利要求 8 所述的装置， 其特征在于， 所述频次统计模块还 用于针对每个用户进行在所述给定时间段内的系统间重选频次统计， 并生 成针对每个用户的统计结果记录； 若所述给定时间段内的用户系统间重选 频次统计值超过预设的不同预警门限， 则在所述统计结果记录中给出相应 的专家提示。
12、 根据权利要求 11所述的装置， 其特征在于， 所述装置还包括： 分类统计模块， 用于基于釆集模块釆集的全网用户呼叫过程是位置区更新 和 /或路由区更新过程的用户日志以及频次统计模块生成的统计结果记录， 进行以小区、 小区组、 终端类型、 用户组或时间段为关键字的多维度分类 统计。
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