WO2012146040A1 - 一种实现自动邻区关系测量的方法及系统 - Google Patents

一种实现自动邻区关系测量的方法及系统 Download PDF

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Publication number
WO2012146040A1
WO2012146040A1 PCT/CN2011/084675 CN2011084675W WO2012146040A1 WO 2012146040 A1 WO2012146040 A1 WO 2012146040A1 CN 2011084675 W CN2011084675 W CN 2011084675W WO 2012146040 A1 WO2012146040 A1 WO 2012146040A1
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anr
measurement
anr measurement
different types
cell
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PCT/CN2011/084675
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English (en)
French (fr)
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杨立
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中兴通讯股份有限公司
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/02Arrangements for optimising operational condition
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0083Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085Hand-off measurements

Definitions

  • the invention relates to an automatic neighboring relationship (ANRF) technology, in particular to a method and a system for realizing automatic neighbor relationship (ANR) measurement.
  • ANRF automatic neighboring relationship
  • ANR automatic neighbor relationship
  • FIG. 1 is a schematic diagram of a system architecture of an existing UTRA.
  • a UTRA network that is, a Universal Terrestrial Radio Access Network (UTRAN)
  • RNC Radio Network Controller
  • NodeB base station
  • the correct neighborhood relationship in the small interval is very important for network performance. For example: to achieve mobile users, user terminals (UE) optimal switching, to ensure its service continuity, to help the network achieve load balancing, capacity allocation, energy saving and other multiple purposes.
  • the network side notifies the neighboring area relationship that has been configured in advance by the system broadcast message or the proprietary control message to the UE.
  • the UE further stores and utilizes the received cell neighbor relationship.
  • this kind of neighbor relationship configured from the network side in advance may be outdated and cannot truly reflect the real-time neighbor relationship. It may cause the UE to switch incorrectly, or even drop calls, which reduces network performance.
  • Step 200 The UE resides in a source cell or a current serving cell in the source RNC.
  • the source RNC selects a suitable UE in the source cell to perform one or several types of ANR measurement tasks.
  • the ANR measurement task types are divided into four basic categories: UTRA ANR Intra-frequency ANR logging, UTRA ANR ANR logging, and Inter-RAT LTE ANR logging. ), as well as cross-GSM ANR logging (Inter-RAT GSM ANR logging).
  • Step 201 The source RNC sends a RRC Message with ANR Configurations carrying the ANRF configuration parameter to the previously selected UE performing the ANRF task in the source cell, and the Logging Measurement is performed by the UTRA ANR.
  • the ANRF configuration parameters include: ANR logging duration timer, ANR logging range, and Inter-frequency ANR logging, Inter-frequency ANR logging, Inter-RAT LTE ANR logging
  • the ANR logging absolute threshold (ANR logging relative threshold ) is the four basic ANR measurement types related to Inter-RAT GSM ANR logging. The UE saves the received ANRF configuration parameters to be used after entering the ANR measurement appropriate state.
  • Step 202 After a certain radio resource control (RRC, Radio Resource Control) signaling interaction, the UE enters a state suitable for performing ANR measurement, and uses the previously saved state.
  • the ANRF configuration parameters are prepared for the measurement of a certain class or classes of neighboring unknown detection cells.
  • the current protocol specification, the state suitable for performing ANR measurement may be an idle state (Idle mode), a registered zone level paging state (URA_PCH), and a cell level paging state (Cell_PCH).
  • Step 203 The UE performs the cell measurement task in the regular neighbor list related to the non-ANR measurement task for the cell reselection due to the possible mobility of the UE itself or other reasons.
  • the UE saves according to the previous
  • the ANRF configuration parameter performs one or several types of measurement tasks of the ANRF, and records an unknown neighboring detection cell (including physical layer information, layer 2 information above the physical layer, etc.) that satisfies the log condition, and records the ANR inside the UE.
  • the log table ANR Logging Table
  • the recording behavior in this step is abbreviated as ANR Logging or Logging, which refers to the recording action after the UE performs the ANR measurement.
  • ANR Logging refers to the recording action after the UE performs the ANR measurement.
  • Step 204 Suppose the UE selects a target cell in a neighbor list and reselects the entry. If the UE already has valid logging content in its internal ANR table, it sends it to the target RNC where the target cell is located. In an RRC uplink message, it indicates that its ANR measurement result is already owned and can be reported.
  • the RRC uplink message used to indicate that the ANR measurement result already exists and can be reported may be: RRC Connection Setup Complete message, Cell Update message, URA Update message , Measurement Reports, etc.
  • Step 205 Optionally, after the UE performs a certain radio resource control (RRC, Radio Resource Control) signaling interaction, the UE enters a state suitable for performing ANR measurement result reporting. And prepare for reporting.
  • the reporting status may be a Cell_DCH or a Cell_FACH state.
  • the process described above is an ANR Logging Results Retrieval RRC downlink message may be a UE Information Request.
  • Step 207 According to the request of the target RNC, the UE reports the ANR measurement previously saved in the ANR table by using some RRC uplink message. result.
  • the RRC uplink message may be a UE Information Response message.
  • Step 208 The target RNC maintains its related Neighbor Relation Table (NRT) according to the obtained ANR measurement result.
  • NRT Neighbor Relation Table
  • step 203 is a critical step.
  • the source cell For a UE performing ANR measurement in a paging channel (PCH, Paging CHannd) state, the source cell utilizes a discontinuous reception idle period (UTRAN DRX Cycle DRX Off) in the UTRAN discontinuous reception period defined in the PCH state, adjacent to The unknown cell performs ANR measurement, and once the UE measures that the unknown neighboring cell meets certain recording conditions, it records (log); for the UE that performs ANR measurement in the Idle state, the core defined by the Idle state in the source cell The CN domain specific DRX cycle Off in the specific discontinuous reception period of the different domain of the network, and performing ANR measurement on the neighboring unknown detection cell.
  • PCH paging channel
  • Paging CHannd Paging CHannd
  • the discontinuous reception idle period (DRX Cycle Off, hereinafter referred to as DRX Cycle Off idle period) in the discontinuous reception period of the PCH state or the Idle state is relatively long, and the UE does not perform any of the serving cells during this period.
  • the control data or the reception of the user data therefore, the UE can fully perform measurement and cell quality evaluation on the adjacent known physical layer (L1) signals of the known cell.
  • the UE In the ANR measurement, in addition to the measurement of the known neighboring cell, the UE also needs to measure the physical signal of the neighboring unknown detecting cell and the cell quality evaluation, and if necessary, the log condition is also met.
  • the system message block (SIB) of the detected cell is read to obtain the necessary layer 2 (L2) information such as the cell global identity and the like.
  • L2 layer 2
  • the control configuration information related to the ANR measurement is started in the ANR measurement.
  • the UE Previously issued by the RNC and saved by the UE, the UE then uses these ANR configuration parameters to perform ANR measurements reasonably while complying with the original cell reselection rules. All ANR measurements are locally scheduled by the UE, and are performed in the best effort. The success rate of receiving Paging by the UE cannot be sacrificed, and the original rules and behaviors of the cell reselection in the regular neighbor list are not damaged. Therefore, the Log ANR scheme of the existing UTRA system may cause the following problems:
  • the network may simultaneously release one or more of the intra-frequency, frequency (multiple frequency), cross-LTE and cross-GSM four-class ANR tasks (this is a problem that the RNC issues ANR configuration parameters). If the network only issues one type of ANR task at a time, then the UE performs a single type of ANR measurement, and the way to schedule the use of the DRX Cycle Off idle period is clear. For example, the network is only configured to perform ANR measurement on a frequency point outside the frequency.
  • the UE uses the DRX Cycle Off idle period except for the DRX Cycle Off idle period for the measurement of the known neighboring cell in the regular neighbor list, for the ANR measurement for that frequency point, that is, at that frequency point Performing a search for an unknown cell; if the network sends multiple types of ANR tasks simultaneously for each task, different UEs may have different ANR measurement scheduling methods. For example, mode 1: according to different priority points of UMTS and different priority levels of LTE/GSM frequency, start ANR measurement from the highest priority frequency, after a period of time (may be absolute time length or UE has searched for N) The neighboring unknown cells) perform the ANR task on the low priority frequency point, which is a way for the UE to schedule ANR measurements.
  • mode 1 according to different priority points of UMTS and different priority levels of LTE/GSM frequency, start ANR measurement from the highest priority frequency, after a period of time (may be absolute time length or UE has searched for N) The neighboring unknown cells) perform the ANR task on the low priority
  • Manner 2 The UE performs various types of tasks interleaving, that is, first performs intra-frequency ANR measurement by using N DRX cycles, then performs extra-frequency ANR measurement by using M DRX cycles, and performs ANR measurement across GSM by using L DRX cycles, and the like. After a large period, repeat the previous measurement execution sequence, which is another way for the UE to schedule ANR measurements.
  • Method 3 According to the original UE The cell reselection tendency in the neighboring cell list is performed, and some type of ANR measurement is performed, for example, when the UE intra-frequency cell reselection measurement is triggered, all available DRX cycle Off idle periods are used, and ANR is performed on the unknown cell in the frequency. measuring. When the UE is triggered across GSM cell reselection measurements, all available DRX cycle Off idle periods are utilized, ANR measurements are made for unknown cells of the GSM system, and so on.
  • the UE schedules the DRX Cycle Off idle period to perform ANR measurements it is a relatively UE-local behavior, if the network does not know at all how the UE schedules the DRX cycle Off idle period to perform ANR measurements, and it is even less known that the UE is in a long DRX cycle.
  • the duration of the off idle time state can last for a long time. Then, the network side cannot predict the new neighbor relationship of the ANR measurement after the UE has passed the period of time. That is, the performance of the current ANR scheme is only one. The work of Best Effort.
  • the neighboring area relationship between different frequency networks of the network is poor (missing, mismatching), and the neighboring area between the intra-frequency cells is better, then the network should have a tendency to 4 more.
  • the DRX Cycle Off idle time is used for ANR measurement between different frequencies, and fully records the unknown neighboring cells outside the frequency that the log really needs, so that the ANR measurement needs to have certain quality assurance.
  • the main object of the present invention is to provide a method and system for realizing automatic neighbor relationship measurement, which can improve the performance of ANR measurement and perform quality-assured ANR measurement.
  • the technical solution of the present invention is achieved as follows:
  • a method for implementing automatic neighbor relationship measurement includes: before the user terminal UE performs automatic neighbor relationship ANR measurement, the network side includes ANR measurement control configuration parameters for different types of ANR measurement scheduling related control parameters, and sends the parameters to the UE; When the ANR measurement is performed, different types of neighboring unknown cells are measured according to the received control parameters related to different types of ANR measurement scheduling.
  • the method further includes: the UE reporting to the network side that the UE is a UE with quality assurance ANR measurement capability.
  • the UE reporting the UE with the quality assurance ANR measurement capability includes: the UE newly added to notify the radio resource connection establishment completion message or the UE radio access capability cell included in the UE capability information message
  • the RNC UE has sub-cells that support quality-assured ANR measurement capabilities.
  • control parameters related to different types of ANR measurement scheduling include:
  • the method further includes: the UE presetting variables locally: a percentage variable of the DRX Cycle Off idle period of the out-of-band ANR measurement, a percentage variable of the DRX Cycle Off idle period of the intra-frequency ANR measurement, and a DRX Cycle measured across the LTE ANR Off the percentage variable of the idle period, the percentage variable of the DRX Cycle Off idle period measured across the GSM ANR, the initial values of the variables are all empty; when the UE receives the control parameters related to different types of ANR measurement scheduling When the ANR measures the control configuration parameters, the corresponding value is assigned to the corresponding variable.
  • the measuring, according to the received different control parameters for different types of ANR measurement scheduling, for different types of neighboring unknown cells includes:
  • the UE is in the PCH state, and the source cell uses the DRX cycle in the PCH state, periodically according to the percentage of the received ANR measurement control configuration parameters for different types of ANR measurement scheduling related control parameters, and different types of neighboring unknown cells. Performing measurements, once the UE measures that the unknown neighboring cell meets the recording conditions and records;
  • the UE is in the Idle state, and uses the DRX cycle in the Idle state in the source cell to periodically compare the proportions of the received ANR measurement control configuration parameters for different types of ANR measurement scheduling control parameters to different types of neighboring unknown cells. Measurements are made once the UE measures that the unknown neighboring cell meets the recording conditions and records.
  • the method further includes the UE simultaneously performing a conventional neighbor cell measurement in a neighbor list prepared for cell reselection.
  • the method further includes: when the UE enters a state suitable for performing reporting of the ANR measurement result, reporting the ANR measurement result to the network; the UE may use the DRX_rate_intra_freq variable, and/or the DRX_rate_inter_freq variable, and/or the DRX_rate_inter_LTE variable, and/or The value of the DRX_rate_inter_GSM variable is cleared.
  • the UE reports the ANR measurement result in the target cell indication by using the cell update procedure; or the UE sends an RRC connection request procedure to indicate that a valid ANR measurement result has been recorded.
  • a system for implementing automatic neighbor relationship measurement includes at least a network side and a UE, where the network side is configured to include an ANR measurement control configuration parameter for controlling parameters related to different types of ANR measurement scheduling before the UE performs ANR measurement. Send to the UE;
  • the UE is configured to perform measurement on different types of neighboring unknown cells according to the received control parameters related to different types of ANR measurement when performing ANR measurement.
  • the UE is further configured to save the received ANR measurement control configuration parameter.
  • the UE is further configured to report to the network side that the UE is a UE with quality assurance ANR measurement capability.
  • the UE is further configured to report the ANR measurement result to the network when entering a state suitable for performing ANR measurement result reporting.
  • the network side before the UE performs the ANR measurement, the network side includes the ANR measurement control configuration parameters for the different types of ANR measurement scheduling related control parameters, and sends the parameters to the UE.
  • the different types of neighboring unknown cells are measured according to the received control parameters related to different types of ANR measurement scheduling.
  • the UE performs measurement on different types of neighboring unknown cells according to the ratio of received ANR measurement control configuration parameters for different types of ANR measurement scheduling related control parameters.
  • the UE performs ANR measurements more specifically under certain network expectations, instead of purely following Best Effort, thereby improving the performance of ANR measurements and performing quality-assured ANR measurements.
  • the present invention provides a mechanism for the network to better coordinate the UE's measurement behavior for different types of ANRs by being able to configure parameters through the ANR.
  • Figure 1 is a schematic diagram of a system architecture of an existing UTRA
  • FIG. 2 is a schematic flow chart of a conventional method for implementing ANR measurement
  • FIG. 3 is a schematic flow chart of a method for implementing ANR measurement according to the present invention.
  • FIG. 4 is a schematic diagram of a system for implementing ANR measurement according to the present invention.
  • FIG. 5 is a schematic flowchart diagram of a first embodiment of implementing ANR measurement according to the present invention.
  • FIG. 6 is a schematic flow chart of a second embodiment of implementing ANR measurement according to the present invention. detailed description
  • FIG. 3 is a flowchart of a method for implementing ANR measurement according to the present invention. As shown in FIG. 3, the method includes the following steps: Step 300: Before the UE performs ANR measurement, the network side includes a different type of ANR. The ANR measurement control configuration parameters of the quantity scheduling related control parameters are sent to the UE.
  • the cell structure of the control parameters related to different types of ANR measurement scheduling is as shown in Table 1.
  • the UE has the following 4 sub-messages for different types of options. If this cell is not encoded by the REL-10 ANR (OP) element. Contains, indicating that the UE is completely in this version 10 DRX cycle off vacant space for different types of idle periods than for ANR measurements, for example (DRX Cycle in the current best effort mode)
  • the intra-frequency ANR idle period is used for frequency measurement.
  • the ANR measurement in the DRX Cycle, 0% Off The percentage of the idle period indicates that the intra-frequency ratio is not used.
  • the frequency is used for the frequency measurement.
  • the DRN Cycle is used for frequency measurement.
  • the ANR 0 % Off The percentage of the idle period indicates that the out-of-band ratio is not used.
  • 100% means the round-to-round rotation, and each weekly DRX Cycle Off period is used for DRX across ANR measurements across LTE idle periods.
  • % indicates the percentage that does not span.
  • Inter-GSM Inter-GSM 75 , 50 , 25 , 0
  • DRX is used for cross-ANR measurement across GSM idle periods during each weekly DRX Cycle Off period.
  • % indicates the percentage that does not span.
  • the sum of the four sub-cells ie, the out-of-frequency, intra-frequency, cross-LTE and cross-GSM sub-cells, should be 100%.
  • the ratios shown in Table 1 are for reference only and may be referenced to other values.
  • the one cycle length of different types of ANR measurements can be a DRX Cycle (Discontinuous Reception Cycle) by default.
  • sub-cells in Table 1 can also take other forms, but the core ideas of the design are: network to intra-frequency, extra-frequency (multiple different frequency points), cross-LTE (multiple different frequency points)
  • the four types of ANR basic tasks across GSM (multiple different frequency points), different priority levels are compiled according to the objective needs of the network, or the usage of DRX cycles Off idle time periods for different types of ANR measurements are differently weighted. Configuration, so that the network can achieve the desired ANR measurement content.
  • the UE further saves the received ANR measurement control configuration parameter, which specifically includes:
  • UE local preset variables DRX Cycle Off of the out-of-band ANR measurement (DRX_rate_intra_freq) variable, DRX Cycle Off of the intra-frequency ANR measurement (DRX_rate_inter_freq) variable, DRX Cycle Off idle time measured across the LTE ANR
  • the percentage (DRX_rate_inter_LTE) variable, the percentage of the DRX Cycle Off idle period (DRX_rate_inter_GSM) variable measured across the GSM ANR, and the initial value of these variables is null (null).
  • the method further includes: the UE reporting to the network side that the UE is a UE with quality assurance ANR measurement capability.
  • the specific implementation includes: completing the establishment of the radio resource connection (RRC connection) Setup complete)
  • the message, or the UE capability information (UP) message is added to the UE Radio Access Capability (UE) cell, which is named as: A support of non best effort ANR sub-cell for the UE to notify the RNC that it has the ability to support quality assurance ANR measurements. If the sub-cell is not included in the UE radio access capability cell, it indicates that the UE does not support quality-assured ANR measurement capability.
  • Step 301 When performing the ANR measurement by the UE, the UE performs measurement on different types of adjacent unknown 'j, the area according to the received control parameter for different types of ANR measurement scheduling.
  • the step specifically includes: the UE in the PCH state, using the DRX cycle defined in the PCH state in the source cell, periodically according to the ratio of the received ANR measurement control configuration parameters for different types of ANR measurement scheduling control parameters, for different types
  • the neighboring unknown cell performs measurement, and once the UE measures that the unknown neighboring cell meets certain recording conditions, it logs it;
  • the UE in the Idle state uses the DRX cycle defined in the Idle state in the source cell to periodically compare the proportion of the received ANR measurement control configuration parameters to different types of ANR measurement scheduling control parameters, and to different types of neighboring unknown cells. The measurement is performed, and once the UE measures that the unknown neighboring cell meets certain recording conditions, it logs it.
  • the foregoing certain recording conditions may be: the measured wireless signal quality or strength of the unknown neighboring cell, and the absolute threshold and the relative threshold delivered by the network side in the ANR configuration parameter.
  • the UE simultaneously performs the conventional neighbor cell measurement in the neighbor list prepared for cell reselection.
  • the implementation of this point is consistent with the prior art, and will not be described in detail here. It is emphasized that: according to the received ANR measurement control configuration parameters of different types of ANR measurement scheduling control parameters, for different types of neighbors Unknown cells are measured. In this way, the UE performs the ANR measurement more specifically under certain network expectations, instead of purely according to the Best Effort, thereby improving the performance of the ANR measurement and performing the quality. A guaranteed ANR measurement.
  • the method of the present invention may further include the step 302: when the UE enters a state suitable for performing the reporting of the ANR measurement result, the ANR measurement result is reported to the network, and the specific implementation belongs to the prior art, and details are not described herein again.
  • the UE clears the values of the internal variables, namely the DRX_rate_intra_freq variable, and/or the DRX_rate_inter_freq variable, and/or the DRX_rate_inter_LTE variable, and/or the DRX_rate_inter_GSM variable, to Null.
  • a system for implementing ANR measurement is also provided. As shown in FIG. 4, at least a network side, a UE, where
  • the network side is configured to send, to the UE, an ANR measurement control configuration parameter that includes control parameters related to different types of ANR measurement scheduling before the UE performs the ANR measurement;
  • the UE is configured to perform measurement on different types of neighboring unknown cells according to the received control parameters related to different types of ANR measurement when performing ANR measurement.
  • the UE is also used to enter the state suitable for performing ANR measurement report, and then the ANR measurement result is sent to the network.
  • the UE is also used to save the received ANR measurement control configuration parameters.
  • FIG. 5 is a schematic flowchart of a first embodiment of implementing ANR measurement according to the present invention.
  • a UE with quality assurance ANR measurement capability is in a source cell (Cell_DCH).
  • the data transmission status, and the ANR measurement configuration parameters are obtained at the same time, and then the data transmission ends into the CelLPCH state, and the source RNC where the source cell is located selects to perform the intra-frequency and out-of-band ANR measurement tasks without performing ANR measurement across LTE and GSM.
  • the specific includes:
  • Step 500 The RNC learns that the UE is capable of supporting the ANR measurement control with quality assurance of the network.
  • cells for indicating scheduling control related parameters for different types of ANR are included in the ANR measurement control configuration parameters.
  • these cells are assumed to be assigned as follows: DRX Cycle Usage ratio for different ANR measurements ⁇ intra-freq: 50%, inter-freq: 50%, inter-LTE: 0%, Inter-GSM: 0% ⁇ o
  • Step 502 The UE performs measurement of the neighboring cell in the neighbor cell list prepared for cell reselection in the Cdl_PCH state, and performs measurement of the unknown neighbor cell related to the ANR. Specifically: During an ANR measurement DRX Cycle, 50% of the DRX Cycle Off idle time is used for intra-frequency ANR measurements and 50% of the DRX cycle is used for extra-frequency ANR measurements. In this embodiment, it is assumed that one intra-frequency unknown neighboring cell and one out-of-frequency unknown neighboring cell are successively found and recorded, and the log is recorded in the local ANR Log table.
  • Step 503 The UE completes the normal cell reselection, and the UE reports the ANR logs record result indication in the target cell indication by using the cell update procedure (Cell Update).
  • the UE still needs to perform cell reselection measurement evaluation on the LTE/GSM cell in the neighbor list, but does not perform ANR measurement on the LTE/GSM cell outside the neighbor list.
  • FIG. 6 is a schematic flowchart of a second embodiment of implementing ANR measurement according to the present invention.
  • a UE having quality assurance ANR measurement capability is in a source cell (Cdl_DCH).
  • the call state the call ends to enter the Idle state, and the source RNC where the source cell is located selects to perform the intra-frequency, cross-LTE, and cross-GSM ANR tasks, and it is desirable to obtain more unknown neighbor cell relationships across the GSM.
  • the following steps are specifically included:
  • Step 600 The RNC learns that the UE supports the network with quality assurance ANR measurement control. Ability.
  • Step 601 The source RNC sends the ANR measurement control configuration parameter to the UE before the UE enters the Idle state by sending a Logged Measurement Configuration message.
  • cells for indicating scheduling control related parameters for different types of ANR are included in the ANR measurement control configuration parameter.
  • these cells are assumed to be assigned as follows: DRX Cycle Usage ratio for different ANR measurements ⁇ intra-freq: 25%, inter-freq: 0%, inter-LTE: 25%, Inter-GSM: 50% ⁇ .
  • Step 602 The UE performs the measurement of the neighboring cell in the neighboring cell list prepared for the cell reselection while performing the measurement of the unknown neighboring cell related to the ANR in the Idle state. Specifically: During an ANR measurement DRX Cycle, 25 % of the DRX Cycle Off idle periods are used for intra-frequency ANR measurements, 25 % of DRX Cycle Off idle periods are used for LTE ANR measurements, and 50% of DRX Cycle Off idle periods Used for cross GSM ANR measurements. In this embodiment, it is assumed that 0 intra-frequency unknown neighbor cells and one LTE unknown neighbor cell and two GSM unknown neighbor cells are successively found and recorded, and the log is in the local ANR Log table.
  • Step 603 It is assumed that the UE has a request for an uplink call in the target cell, and the UE sends an RRC Connection Request procedure, indicating that a valid ANR measurement result has been recorded. After entering the Cell_DCH, the UE reports the ANR logs record in the target cell. result.

Description

一种实现自动邻区关系测量的方法及系统 技术领域
本发明涉及自动邻区关系功能( ANRF, Automatic Neighbor Relation Functionality )技术,尤指一种实现自动邻区关系( ANR, Automatic Neighbor Relation ) 测量的方法及系统。 背景技术
随着蜂窝移动通信系统运营商用户数的增多和用户对服务需求的提 高, 蜂窝网络的规模不断扩大, 基站数不断增多, 各种制式的蜂窝移动通 信系统不断加深彼此协同操作。 相伴随地, 蜂窝网络中小区的邻区关系管 理和维护成为越来越繁瑣的工作, 于是期望过去纯手工的邻区关系管理能 够被系统自动化。不例外地,通用陆地无线接入( UTRA, Universal Terrestrial Radio Access ) 网络运行商非常渴求其网络小区的邻区关系实现自动管理。
图 1为现有 UTRA的系统架构示意图, 如图 1所示, 在 UTRA网络、 即通用陆地无线接入网 ( UTRAN , Universal Terrestrial Radio Access Network ) 中, 包括无线网络控制器( RNC, Radio Network Controller )和 基站(NodeB ) 两种基本网元。 成百上千的 NodeB下众多小区间的邻区关 系, 会随着网络规划优化的需要和所处无线环境的变化而动态地变化。
在 UTRA网络中, 小区间正确的邻区关系对网络性能非常重要。 比如: 实现移动用户, 用户终端 (UE )最优切换, 保证其服务连续性, 帮助网络 实现负载均衡, 容量调配, 节能等多重目的。 在纯手工邻区编排下, 网络 侧将已提前配置好的邻区关系通过系统广播消息或者专有控制消息通知给 UE, UE进一步存储和利用收到的小区邻区关系。 但是, 这种来自网络侧 提前配置好的邻区关系可能是过时的, 不能真正反映实时的邻区关系, 从 而可能造成 UE的错误切换, 甚至掉话, 降低了网络性能。
在 UTRA系统中, 3GPP版本 10 ( RdeaselO ) 引入了一种基于最大努 力完成方式( Best Effort to do ) 的 ANRF。 该方案借用最小化路测 (MDT, Minimize Driving Test )技术 简称 Log ANR方案, 具体流程如图 2所示, 包括以下步驟:
步驟 200: UE驻留在源 RNC下某源小区 (Source cell )或称为当前服 务小区 ( Serving cell ) 中。 源 RNC在源小区中选择某个合适的 UE执行某 一类或者几类 ANR测量任务。
这里, ANR 测量任务类型分为基本 4 类: UTRA ANR 频内测量 ( Intra-frequency ANR logging )、 UTRA ANR频夕卜测量 ( Inter-frequency ANR logging )、跨 LTE ANR测量( Inter-RAT LTE ANR logging ),以及跨 GSM ANR 测量( Inter-RAT GSM ANR logging )。
步驟 201: 源 RNC在源小区中向之前选定的执行 ANRF任务的 UE, 发送携带有 ANRF 配置参数的 RRC 下行消息 (DL Message with ANR Configurations ) , 比^口 UTRA ANR 测量 己置 ( Logged Measurement
Configuration ) 消息。
其中 , ANRF配置参数包括: ANR测量限时参数( ANR logging duration timer )、 ANR 测量范围限制参数 ( ANR logging detection range ), 以及与 Intra-frequency ANR logging , Inter-frequency ANR logging , Inter-RAT LTE ANR logging、 Inter-RAT GSM ANR logging这 4种基本 ANR测量类型相关 的小区信号评估的参数 ( ANR logging absolute threshold, ANR logging relative threshold )。 UE保存接收到的 ANRF配置参数, 以待进入到 ANR测 量合适状态后使用。
步驟 202: UE经过一定的无线资源控制( RRC, Radio Resource Control ) 信令交互后, 进入到了某个适合执行 ANR测量的状态, 使用之前保存的 ANRF配置参数为某一类或者几类的相邻未知检测小区的测量做好准备。 目前协议规范, 适合执行 ANR测量的状态可以是空闲态(Idle mode )、 注册区级寻呼态 (URA_PCH )、 小区级寻呼态 (Cell_PCH )。
步驟 203: 由于 UE本身可能的移动性或者其他原因, UE—方面进行 非 ANR测量任务相关的常规的邻区列表内的小区测量任务, 为小区重选做 准备; 另一方面, UE按照之前保存的 ANRF配置参数, 执行 ANRF某一 类或者几类测量任务, 并且将满足记录 log条件的未知相邻检测小区(包括 物理层信息、 物理层之上的层 2信息等)记录在 UE内部的 ANR log表中 ( ANR Logging Table )。
本步驟中的记录行为简称为 ANR Logging或者 Logging,是指 UE执行 完 ANR测量后的记录动作。 当 UE常规的邻区列表内的某相邻小区满足小 区重选条件时, UE仍然按照已有的模式重选到那个邻区列表内的目标小区 中, 并不会受到 ANR测量的干扰, 也就是说, ANR测量任务是附带伴随 着 UE常规小区重选行为的, UE的小区重选性能不受到 ANR测量的影响, UE执行 ANR测量是尽可能地最大努力方式(best effort ) 实现的。
步驟 204: 假设 UE选定了某个邻区列表内的目标小区并且重选进入, 如果 UE在其内部的 ANR表中已经存在有有效的 logging内容, 就在其发 送给目标小区所在的目标 RNC的某 RRC上行消息中,指示其 ANR测量结 果已经拥有并且可以进行上报。
本步驟中,用于指示 ANR测量结果已经拥有并且可以进行上报的 RRC 上行消息可以是: RRC连接建立完成( RRC Connection Setup Complete )消 息、 小区更新 ( Cell Update ) 消息、 URA更新 ( URA Update ) 消息、 测量 才艮告 ( Measurement Report ) 消息等。
步驟 205:可选地, UE经过一定的无线资源控制( RRC, Radio Resource Control )信令交互后, 进入到了某个适合执行 ANR测量结果上报的状态, 并且做好上报准备。 上报状态具体可以是 Cell_DCH、 Cell_FACH状态。 步驟 206: 目标小区所在的目标 RNC通过某种 RRC下行消息, 要求 UE 进行 ANR 测量结果上艮。 称上述这个过程为 ANR Logging Results Retrieval RRC下行消息可以是 UE信息请求( UE Information Request )消 步驟 207: 根据目标 RNC的请求, UE通过某种 RRC上行消息上报其 之前保存在 ANR表中的 ANR测量结果。 RRC上行消息可以是 UE信息响 应 ( UE Information Response ) 消息。
步驟 208: 目标 RNC根据获得的 ANR测量结果, 维护其相关的邻区 关系列表 ( NRT , Neighbor Relation Table )。
图 2所示现有 UTRA系统的 Log ANR方案中,步驟 203是关键的一步。 对于处于寻呼信道(PCH, Paging CHannd )态执行 ANR测量的 UE, 在源 小区利用 PCH态下定义的 UTRAN不连续接收周期中的不连续接收空闲时 段( UTRAN DRX Cycle DRX Off ), 对相邻未知小区进行 ANR测量, 一旦 UE测量到未知相邻检测小区满足一定的记录条件, 就将其记录(log ) 下; 对于处于 Idle态执行 ANR测量的 UE, 在源小区利用 Idle态下定义的核心 网不同域特定的不连续接收周期中的不连续接收空闲时段 ( CN domain specific DRX cycle Off ), 对相邻未知检测小区进行 ANR测量, 一旦 UE测 量到未知相邻小区满足一定的记录条件, 就将其记录下。 无论是 PCH态或 者是 Idle态的不连续接收周期中的不连续接收空闲时段( DRX Cycle Off , 下文简称为 DRX Cycle Off空闲时段 )都是比较长的, UE在此时段不进行 本服务小区任何的控制数据或者用户数据的接收, 所以, UE能够充分对相 邻已知小区物理层(L1 )信号进行测量和小区质量评估。
在 ANR测量中, 除了对已知相邻小区测量, UE还需要对相邻未知检 测小区物理信号进行测量和小区质量评估, 必要时,还需要对满足 log条件 的检测小区的系统消息块(SIB )进行读取, 以便获得必要的层 2 ( L2 )信 息如小区全球标识等等。 如前所述, UE进入 PCH或者 Idle态后, 不再接 收来自 RNC 除寻呼 (Paging ), 系统消息外的任何的控制数据, 因此, 与 ANR测量相关的控制配置信息都是在 ANR测量启动之前由 RNC发出并由 UE保存的,然后 UE在遵守原有小区重选规则的同时,合理地使用这些 ANR 配置参数进行 ANR测量, 一切 ANR测量由 UE本地调度, 以最大努力去 做的形式进行, 不能牺牲 UE接收 Paging的成功率, 不破坏 UE对常规邻 区列表内小区重选原有的规则和行为, 于是, 现有 UTRA系统的 Log ANR 方案可能造成以下问题:
网络可能同时下达频内、频夕卜(多个频点)、跨 LTE和跨 GSM四类 ANR 任务中的一类或者多类(这是 RNC下达 ANR配置参数实现的问题)。 如果 网络每次只下发一类 ANR任务, 那么 UE执行单一类型的 ANR测量中, 调度使用 DRX Cycle Off空闲时段的方式很明确, 比如: 网络只配置了对频 外某频率点上进行 ANR测量, 则 UE将除了用于常规邻区列表内已知相邻 小区的测量的 DRX Cycle Off空闲时段外的其他 DRX Cycle Off空闲时段, 用于对那个频率点的 ANR测量, 即在那个频率点上进行未知小区的搜索; 如果网络每次任务同时发送多类 ANR任务, 不同的 UE可能会有不同 的 ANR测量调度处理方式。例如,方式 1:根据 UMTS不同频点和 LTE/GSM 频点不同的优先级别, 从优先级最高的频点开始 ANR测量, 执行完一段时 间后(可能是绝对时间长度或是 UE已经搜索到了 N个相邻未知小区), 再 执行低优先级频点上的 ANR任务, 这是一种 UE调度 ANR测量的方式。 方式 2: UE交织地执行各类任务, 即先利用 N个 DRX cycle执行频内 ANR 测量,再利用 M个 DRX cycle执行频外 ANR测量,再利用 L个 DRX cycle 执行跨 GSM的 ANR测量等等, 在一个大周期后, 再重复之前的测量执行 顺序, 这是另一种 UE调度 ANR测量的方式。 方式 3: 根据 UE本来的常 规邻区列表内小区重选倾向性, 执行某类 ANR测量, 比如: 当 UE频内小 区重选测量被触发时, 就利用所有可用的 DRX cycle Off空闲时段, 对频内 的未知小区进行 ANR测量。 当 UE跨 GSM小区重选测量被触发时, 就利 用所有可用的 DRX cycle Off空闲时段,对 GSM系统的未知小区进行 ANR 测量, 以此类推。
由于 UE如何调度 DRX Cycle Off空闲时段去执行 ANR测量, 是一个 相对 UE本地的行为, 如果网络完全不知道 UE如何调度 DRX cycle Off空 闲时段去执行 ANR测量, 且更不知道 UE处于拥有长 DRX cycle Off空闲 时段状态的时间到底能持续多久,那么, 网络侧就无法预期到 UE经过一段 时间后, ANR测量到底能够记录 log到哪些新邻区关系, 也就是说, 目前 ANR方案的性能仅仅是一种最大努力(Best Effort )的工作。 比如: 可能在 某个区域, 网络不同频率小区间邻区关系较差(漏配, 错配), 而同频内小 区间邻区关系较好, 那么网络应该有倾向性地 4巴更多的 DRX Cycle Off 空 闲时段用于不同频率间的 ANR测量, 充分记录 log真正所需的频外的未知 相邻小区, 从而 ANR测量结果是需要有一定质量保证的。
但是, 由于现有如何调度 DRX Cycle Off空闲时段去执行 ANR测量, 是一个相对 UE本地的行为, 因此, 网络侧不能将更多的 DRX Cycle Off 空 闲时段用于不同频率间的 ANR测量, 不能更好地充分记录 log真正所需的 频外的未知相邻小区, 从而不能确保 ANR测量结果是有一定质量保证的。
基于上述描述, 为了提高 ANR测量的性能, 做有质量保证的 ANR测 量。 UE应该能够在一定的网络期望下, 更加有针对性的去做 ANR测量, 而不是纯粹的 Best Effort进行。 而现有却没有相关实现方案。 发明内容
有鉴于此, 本发明的主要目的在于提供一种实现自动邻区关系测量的 方法及系统, 能够提高 ANR测量的性能, 执行有质量保证的 ANR测量。 为达到上述目的, 本发明的技术方案是这样实现的:
一种实现自动邻区关系测量的方法, 包括: 用户终端 UE执行自动邻区 关系 ANR测量前, 网络侧将包含对不同类型 ANR测量调度相关控制参数 的 ANR测量控制配置参数, 发送给 UE; UE执行 ANR测量时, 按照接收 到的对不同类型 ANR测量调度相关控制参数对不同类型的相邻未知小区进 行测量。
所述方法之前还包括: 所述 UE 向网络侧上报自身为具备有质量保证 ANR测量能力的 UE。
所述 UE上报自身为具备有质量保证 ANR测量能力的 UE包括: 所述 UE在无线资源连接建立完成消息、 或者 UE能力信息消息中所含的 UE无 线接入能力信元中新增用于通知 RNC UE具备支持有质量保证 ANR测量能 力的子信元。
所述对不同类型 ANR测量调度相关控制参数包括:
频外 ANR测量的不连续接收周期中的不连续接收空闲时段 DRX Cycle Off的百分比, 和 /或,
频内 ANR测量的 DRX Cycle Off 空闲时段的百分比, 和 /或, 跨 LTE ANR测量的 DRX Cycle Off 空闲时段的百分比, 和 /或, 跨 GSM ANR测量的 DRX Cycle Off 空闲时段的百分比。
所述方法还包括: 所述 UE在本地预先设置变量: 频外 ANR测量的 DRX Cycle Off 空闲时段的百分比变量, 频内 ANR测量的 DRX Cycle Off 空闲时段的百分比变量,跨 LTE ANR测量的 DRX Cycle Off 空闲时段的百 分比变量, 跨 GSM ANR测量的 DRX Cycle Off 空闲时段的百分比变量, 所述各变量的初始值均为空; 当所述 UE接收到包含有对不同类型 ANR测 量调度相关控制参数的 ANR测量控制配置参数时,将相应的值赋给对应的 变量。 所述按照接收到的对不同类型 ANR测量调度相关控制参数对不同类型 的相邻未知小区进行测量包括:
所述 UE处于 PCH态, 在源小区利用 PCH态下的 DRX cycle , 周期地 按照接收到的对不同类型 ANR测量调度相关控制参数的 ANR测量控制配 置参数的百分比,对不同类型的相邻未知小区进行测量,一旦 UE测量到未 知相邻小区满足记录条件并记录;
所述 UE处于 Idle态, 在源小区利用 Idle态下的 DRX cycle, 周期地按 照接收到的对不同类型 ANR测量调度相关控制参数的 ANR测量控制配置 参数的比例,对不同类型的相邻未知小区进行测量,一旦 UE测量到未知相 邻小区满足记录条件并记录。
所述方法还包括:所述 UE同时执行常规的为小区重选而准备的邻区列 表内相邻小区测量。
所述方法还包括: UE进入到适合执行 ANR测量结果上报的状态时, 向网络上报 ANR测量结果; 所述 UE将所述 DRX_rate_intra_freq变量、 和 /或 DRX_rate_inter_freq 变量、 和 /或 DRX_rate_inter_LTE 变量、 和 /或 DRX_rate_inter_GSM变量的值清空。
所述 UE通过小区更新流程在目标小区指示上报 ANR测量结果;或者, 所述 UE通过发送 RRC连接请求流程, 指示已经记录到有效的 ANR 测量结果。
一种实现自动邻区关系测量的系统, 至少包括网络侧、 UE, 其中, 网络侧, 用于在 UE执行 ANR测量前, 将包含有对不同类型 ANR测 量调度相关控制参数的 ANR测量控制配置参数发送给 UE;
UE, 用于在执行 ANR测量时, 按照接收到的对不同类型 ANR测量调 度相关控制参数对不同类型的相邻未知小区进行测量。
所述 UE, 还用于保存接收到的 ANR测量控制配置参数。 所述 UE, 还用于向网络侧上报自身为具备有质量保证 ANR测量能力 的 UE。
所述 UE, 还用于进入到了适合执行 ANR测量结果上报的状态时, 向 网络上报 ANR测量结果。
从上述本发明提供的技术方案可以看出, 包括 UE执行 ANR测量前, 网络侧将包含有对不同类型 ANR测量调度相关控制参数的 ANR测量控制 配置参数, 发送给 UE, UE执行 ANR测量时, 按照接收到的对不同类型 ANR测量调度相关控制参数对不同类型的相邻未知小区进行测量。 本发明 中, UE按照接收的对不同类型 ANR测量调度相关控制参数的 ANR测量控 制配置参数的比例, 对不同类型的相邻未知小区进行测量。 这样, UE是在 一定的网络期望下, 更加有针对性的去执行 ANR测量, 而不是纯粹的按照 Best Effort 从而提高了 ANR测量的性能, 执行了有质量保证的 ANR 测量。根据以上描述可见,本发明提供了一种机制,使网络在能够通过 ANR 配置参数, 更好地协调 UE对不同类型 ANR测量行为。 附图说明
图 1为现有 UTRA的系统架构示意图;
图 2为现有实现 ANR测量的方法的流程示意图;
图 3为本发明实现 ANR测量的方法的流程示意图;
图 4为本发明实现 ANR测量的系统的示意图;
图 5为本发明实现 ANR测量的第一实施例的流程示意图;
图 6为本发明实现 ANR测量的第二实施例的流程示意图。 具体实施方式
图 3为本发明实现 ANR测量的方法的流程图, 如图 3所示, 包括: 步驟 300: UE执行 ANR测量前, 网络侧将包含有对不同类型 ANR测 量调度相关控制参数的 ANR测量控制配置参数, 发送给 UE。
其中,对不同类型 ANR测量调度相关控制参数的信元体结构如表 1所
UE 对不同类型 可选项 包含下面 4个子信 如果这个信元不被包 REL-10 ANR 测 量 的 ( OP ) 元。 含, 表明 UE完全本 版本 10 DRX cycle off 空 地的进行不同类型 闲时段的使用比 ANR测量间的调度, 例 ( DRX Cycle 以现有最大努力方式
Usage ratio for 进行。 ( The absence of different ANR this IE indicates that measurements ) the UE will schedule
the different ANR measurement types purely locally. )
- > 频 内 必选项 Enumerate (100%, 表示 UE将周期性地
( Intra-frequency ( MP ) 75%,50 ,25 ,0%) 在不同类型 ANR 测
) 其中, 100 %表示全 量间轮循, 且每个周
部 DRX Cycle Off 期内用于频内 ANR 空闲时段都用于频 测量的 DRX Cycle 内 ANR测量, 0 % Off 空闲时段的百分 表示不进行频内 比。
ANR测量。
- > 频 夕卜 MP Enumerate (100%, 表示 UE将周期性地
( Inter-frequency 75%,50%,25%,0%) 在不同类型 ANR 测
) 其中, 100 %表示全 量间轮循, 且每个周
部 DRX Cycle Off 期内用于频外 ANR 空闲时段都用于频 测量的 DRX Cycle 夕卜 ANR 0 % Off 空闲时段的百分 表示不进行频外 比。
ANR测量。
- 〉 跨 LTE MP Enumerate (100%, 表示 UE将周期性地
( Inter-LTE ) 75 ,50 ,25 ,0 ) 在不同类型 ANR 测
其中, 100 %表示全 量间轮循, 且每个周 部 DRX Cycle Off 期 内 用 于跨 LTE 空闲时段都用于跨 ANR 测量的 DRX
LTEANR 测量, 0 Cycle Off 空闲时段
%表示不进行跨 的百分比。
LTE ANR测量。
_ > 跨 GSM MP Enumerate (100%, 表示 UE将周期性地
( Inter-GSM ) 75 ,50 ,25 ,0 ) 在不同类型 ANR 测
其中, 100 %表示全 量间轮循, 且每个周 部 DRX Cycle Off 期内 用 于跨 GSM 空闲时段都用于跨 ANR 测量的 DRX GSM ANR测量, 0 Cycle Off 空闲时段
%表示不进行跨 的百分比。
GSM 的 ANR 测
里。
表 1
表 1中, 4个子信元即频外、 频内、 跨 LTE和跨 GSM子信元所占比例 之和应该为 100 %。表 1中所示的比例取值仅仅是为了说明而作为参考性的, 具体枚举的取值范围可以是其它值。 表 1中, 不同类型 ANR测量的一个周 期长度默认可以是一个非连续接收周期 (DRX Cycle , Discontinuous Reception Cycle )。
需要说明的是, 表 1 中的子信元也可以采取其他的形式, 但设计的核 心思想是: 网络对频内、 频外(多个不同频点)、 跨 LTE (多个不同频点)、 跨 GSM (多个不同频点)这 4类 ANR基本任务, 根据网络的客观需要进 行不同的优先级编制, 或者对用于不同类型 ANR测量的 DRX cycles Off空 闲时段的使用量进行不同的权重配置, 这样网络便可以实现有倾向性地获 得想要的 ANR测量内容。
本步驟中, 还包括 UE保存接收到的 ANR测量控制配置参数, 具体包 括:
UE本地预先设置变量: 频外 ANR测量的 DRX Cycle Off 空闲时段的 百分比( DRX_rate_intra_freq ) 变量, 频内 ANR测量的 DRX Cycle Off 空 闲时段的百分比( DRX_rate_inter_freq )变量,跨 LTE ANR测量的 DRX Cycle Off 空闲时段的百分比( DRX_rate_inter_LTE )变量, 跨 GSM ANR测量的 DRX Cycle Off 空闲时段的百分比( DRX_rate_inter_GSM ) 变量, 这些变 量的初始值为空( Null )。 当 UE接收到包含有对不同类型 ANR测量调度相 关控制参数的 ANR测量控制配置参数, 将相应的值赋给对应的变量。
步驟 300之前还包括: UE向网络侧上报自身为具备有质量保证 ANR 测量能力的 UE。具体实现包括:在无线资源连接建立完成(RRC connection setup complete ) 消息、 或者 UE能力信息 ( UE capability Information )上行 消息中所含的信元即 UE无线接入能力 ( UE Radio Access Capability )信元 中增加新子信元, 比如命名为: 具备有质量保证 ANR测量能力(support of non best effort ANR ) 子信元, 用于 UE通知 RNC, 其具备支持有质量保证 ANR测量能力。 如果该子信元不被包含在 UE无线接入能力信元中, 则表 明 UE不支持有质量保证的 ANR测量能力。
步驟 301: UE执行 ANR测量时, 按照接收到的对不同类型 ANR测量 调度相关控制参数对不同类型的相邻未知 ' j、区进行测量。 本步驟具体包括: 处于 PCH态的 UE, 在源小区利用 PCH态下定义的 DRX cycle, 周期 地按照接收到的对不同类型 ANR测量调度相关控制参数的 ANR测量控制 配置参数的比例,对不同类型的相邻未知小区进行测量,一旦 UE测量到未 知相邻小区满足一定的记录条件, 就将其 log下;
处于 Idle态的 UE, 在源小区利用 Idle态下定义的 DRX cycle, 周期地 按照接收到的对不同类型 ANR测量调度相关控制参数的 ANR测量控制配 置参数的比例,对不同类型的相邻未知小区进行测量,一旦 UE测量到未知 相邻小区满足一定的记录条件, 就将其 log下。
上述一定的记录条件可以是: 测量到的未知相邻小区的无线信号质量 或者强度, 同时满足网络侧在 ANR配置参数中下发的绝对门限和相对门限 时。
需要说明的是, 与此同时, UE同时执行着常规的为小区重选而准备的 邻区列表内相邻小区测量。 这点的实现与现有技术是一致的, 这里不再详 述, 而强调的是: 按照接收的对不同类型 ANR 测量调度相关控制参数的 ANR测量控制配置参数的比例, 对不同类型的相邻未知小区进行测量。 这 样, UE是在一定的网络期望下, 更加有针对性的去执行 ANR测量, 而不 是纯粹的按照 Best Effort进行, 从而提高了 ANR测量的性能, 执行了有质 量保证的 ANR测量。
本发明方法还可以包括步驟 302: UE进入到了某个适合执行 ANR测 量结果上报的状态时,向网络上报 ANR测量结果,具体实现属于现有技术, 这里不再赘述。 同时, UE将内部变量即 DRX_rate_intra_freq变量、 和 /或 DRX_rate_inter_freq 变量、 和 /或 DRX_rate_inter_LTE 变量、 和 /或 DRX_rate_inter_GSM变量的值清空, 还原为 Null。
针对本发明方法, 还提供一种实现 ANR测量的系统, 如图 4所示, 至 少包括网络侧、 UE, 其中,
网络侧, 用于在 UE执行 ANR测量前, 将包含有对不同类型 ANR测 量调度相关控制参数的 ANR测量控制配置参数发送给 UE;
UE, 用于在执行 ANR测量时, 按照接收到的对不同类型 ANR测量调 度相关控制参数对不同类型的相邻未知小区进行测量。
UE, 还用于进入到适合执行 ANR测量结果上报的状态时, 向网络上 才艮 ANR测量结果。
UE, 还用于保存接收到的 ANR测量控制配置参数。
UE,还用于向网络侧上报自身为具备有质量保证 ANR测量能力的 UE。 图 5为本发明实现 ANR测量的第一实施例的流程示意图,如图 5所示, 第一实施例中, 假设某具备有质量保证 ANR测量能力的 UE在某源小区 ( Source cell )处于 Cell_DCH数据传输状态,同时获得 ANR测量配置参数, 然后数据传输结束进入 CelLPCH状态, 被源小区所在的源 RNC选择去执 行频内、 频外的 ANR测量任务, 而不做跨 LTE和跨 GSM的 ANR测量。 如图 5所示, 具体包括:
步驟 500: RNC获知 UE为支持接受网络有质量保证的 ANR测量控制 的能力。 步驟 501 : 源 RNC 通过下发记录测量配置 (Logged Measurement Configuration ) 消息, 将 ANR测量控制配置参数发送给 UE。
本步驟中,在 ANR测量控制配置参数中包括用于表示对不同类型 ANR 测量调度相关控制参数的信元, 在第一实施例中, 假设这些信元赋值如下: DRX Cycle Usage ratio for different ANR measurements {intra-freq: 50%, inter-freq: 50%, inter-LTE: 0%, Inter-GSM: 0%} o UE保存接收到的信元值到 本地变量中, 即 DRX_rate_intra_freq = 50%, DRX_rate_inter_freq = 50%, DRX_rate_inter_LTE = 0% , DRX_rate_inter_GSM =0%。
步驟 502: UE在 Cdl_PCH 态, 一边执行为小区重选而准备的邻区列 表内相邻小区测量, 一边执行 ANR相关的未知相邻小区的测量。 具体地: 在一个 ANR测量 DRX Cycle周期内, 50 %的 DRX Cycle Off 空闲时段用于 频内 ANR测量, 50 %的 DRX cycle用于频外 ANR测量。 本实施例中, 假 设, 先后发现并且记录了 1个同频未知相邻小区和 1个频外未知相邻小区, 并将其记录 log在本地 ANR Log表中。
步驟 503: UE完成常规小区重选, UE通过小区更新流程 ( Cell Update ) 在目标小区指示上报 ANR logs记录结果指示。
需要说明的是,第一实施例中, UE仍然需要对邻区列表内的 LTE/GSM 小区进行小区重选测量评估,但不对邻区列表外的 LTE/GSM小区进行 ANR 测量。
图 6为本发明实现 ANR测量的第二实施例的流程示意图,如图 6所示, 第二实施例中, 假设某具备有质量保证 ANR测量能力的 UE在某源小区 ( Source cell )处于 Cdl_DCH通话状态, 通话结束进入 Idle状态, 被源小 区所在的源 RNC选择执行频内、跨 LTE、 和跨 GSM的 ANR任务, 其中希 望能更多地获取跨 GSM的未知相邻小区关系。 如图 6所示, 具体包括以下 步驟:
步驟 600: RNC获知 UE为支持接受网络有质量保证的 ANR测量控制 的能力。
步驟 601 : 源 RNC 通过下发记录测量配置 (Logged Measurement Configuration ) 消息, 将 ANR测量控制配置参数在 UE进入 Idle态前发送 给 UE。
本步驟中,在 ANR测量控制配置参数中包括用于表示对不同类型 ANR 测量调度相关控制参数的信元, 在第二实施例中, 假设这些信元赋值如下: DRX Cycle Usage ratio for different ANR measurements {intra-freq: 25%, inter-freq: 0%, inter-LTE: 25%, Inter-GSM: 50%}。 UE保存接收到的信元值到 本地变量中, 即 DRX_rate_intra_freq=25% , DRX_rate_inter_freq=0% , DRX_rate_inter_LTE = 25%, DRX_rate_inter_GSM =50%。
步驟 602: UE在 Idle 态, 一边执行为小区重选而准备的邻区列表内相 邻小区测量, 一边执行 ANR相关的未知相邻小区的测量。 具体地: 在一个 ANR测量 DRX Cycle周期内, 25 %的 DRX Cycle Off 空闲时段用于频内 ANR测量, 25 %的 DRX Cycle Off 空闲时段用于跨 LTE ANR测量, 50 % 的 DRX Cycle Off 空闲时段用于跨 GSM ANR测量。 本实施例中, 假设, 先后发现并且记录了 0个同频未知相邻小区和 1个跨 LTE未知相邻小区, 2 个跨 GSM未知相邻小区, 并将其 log在本地 ANR Log表中。
步驟 603:假设 UE在目标小区中,存在上行通话的需求, UE发送 RRC 连接请求(RRC Connection Request ) 流程, 指示已经记录到有效的 ANR 测量结果, 进入 Cell_DCH后, UE在目标小区上报 ANR logs记录结果。
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, 凡在本发明的精神和原则之内所作的任何修改、 等同替换和改进 等, 均应包含在本发明的保护范围之内。

Claims

权利要求书
1、 一种实现自动邻区关系测量的方法, 其特征在于, 包括:
用户终端 UE执行自动邻区关系 ANR测量前, 网络侧将包含对不同类 型 ANR测量调度相关控制参数的 ANR测量控制配置参数, 发送给 UE;
UE执行 ANR测量时,按照接收到的对不同类型 ANR测量调度相关控 制参数对不同类型的相邻未知小区进行测量。
2、 根据权利要求 1所述的方法, 其特征在于, 该方法之前还包括: 所 述 UE向网络侧上报自身为具备有质量保证 ANR测量能力的 UE。
3、 根据权利要求 2所述的方法, 其特征在于, 所述 UE上报自身为具 备有质量保证 ANR测量能力的 UE包括:
所述 UE在无线资源连接建立完成消息、或者 UE能力信息消息中所含 的 UE无线接入能力信元中新增用于通知 RNC UE具备支持有质量保证 ANR测量能力的子信元。
4、 根据权利要求 2所述的方法, 其特征在于, 所述对不同类型 ANR 测量调度相关控制参数包括:
频外 ANR测量的不连续接收周期中的不连续接收空闲时段 DRX Cycle Off的百分比, 和 /或,
频内 ANR测量的 DRX Cycle Off 空闲时段的百分比, 和 /或, 跨 LTE ANR测量的 DRX Cycle Off 空闲时段的百分比, 和 /或, 跨 GSM ANR测量的 DRX Cycle Off 空闲时段的百分比。
5、 根据权利要求 4所述的方法, 其特征在于, 该方法还包括: 所述 UE在本地预先设置变量: 频外 ANR测量的 DRX Cycle Off 空闲 时段的百分比变量,频内 ANR测量的 DRX Cycle Off 空闲时段的百分比变 量, 跨 LTE ANR测量的 DRX Cycle Off 空闲时段的百分比变量, 跨 GSM ANR测量的 DRX Cycle Off 空闲时段的百分比变量, 所述各变量的初始值 均为空;
当所述 UE接收到包含有对不同类型 ANR测量调度相关控制参数的 ANR测量控制配置参数时, 将相应的值赋给对应的变量。
6、 根据权利要求 2所述的方法, 其特征在于, 所述按照接收到的对不 同类型 ANR测量调度相关控制参数对不同类型的相邻未知小区进行测量包 括:
所述 UE处于 PCH态, 在源小区利用 PCH态下的 DRX cycle , 周期地 按照接收到的对不同类型 ANR测量调度相关控制参数的 ANR测量控制配 置参数的比例,对不同类型的相邻未知小区进行测量,一旦 UE测量到未知 相邻小区满足记录条件并记录;
所述 UE处于 Idle态, 在源小区利用 Idle态下的 DRX cycle, 周期地按 照接收到的对不同类型 ANR测量调度相关控制参数的 ANR测量控制配置 参数的比例,对不同类型的相邻未知小区进行测量,一旦 UE测量到未知相 邻小区满足记录条件并记录。
7、 根据权利要求 6 所述的方法, 其特征在于, 该方法还包括: 所述
UE同时执行常规的为小区重选而准备的邻区列表内相邻 d、区测量。
8、 根据权利要求 5所述的方法, 其特征在于, 该方法还包括:
UE进入到适合执行 ANR测量结果上报的状态时,向网络上报 ANR测 量结果;
所述 UE将所述 DRX_rate_intra_freq变量、 和 /或 DRX_rate_inter_freq 变量、 和 /或 DRX_rate_inter_LTE变量、 和 /或 DRX_rate_inter_GSM变量的 值清空。
9、 根据权利要求 8所述的方法, 其特征在于,
所述 UE通过小区更新流程在目标小区指示上报 ANR测量结果;或者, 所述 UE通过发送 RRC连接请求流程, 指示已经记录到有效的 ANR 测量结果。
10、 一种实现自动邻区关系测量的系统, 其特征在于, 至少包括网络 侧、 UE, 其中,
网络侧, 用于在 UE执行 ANR测量前, 将包含有对不同类型 ANR测 量调度相关控制参数的 ANR测量控制配置参数发送给 UE;
UE, 用于在执行 ANR测量时, 按照接收到的对不同类型 ANR测量调 度相关控制参数对不同类型的相邻未知小区进行测量。
11、 根据权利要求 10所述的系统, 其特征在于, 所述 UE, 还用于保 存接收到的 ANR测量控制配置参数。
12、 根据权利要求 11所述的系统, 其特征在于, 所述 UE, 还用于向 网络侧上报自身为具备有质量保证 ANR测量能力的 UE。
13、根据权利要求 10至 12任一项所述的系统,其特征在于,所述 UE, 还用于进入到了适合执行 ANR测量结果上报的状态时, 向网络上报 ANR 测量结果。
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