WO2009086793A1 - 优化相邻小区关系列表的方法、系统及相关设备 - Google Patents

优化相邻小区关系列表的方法、系统及相关设备 Download PDF

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Publication number
WO2009086793A1
WO2009086793A1 PCT/CN2009/070011 CN2009070011W WO2009086793A1 WO 2009086793 A1 WO2009086793 A1 WO 2009086793A1 CN 2009070011 W CN2009070011 W CN 2009070011W WO 2009086793 A1 WO2009086793 A1 WO 2009086793A1
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WIPO (PCT)
Prior art keywords
base station
cell
information
link
neighboring cell
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PCT/CN2009/070011
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English (en)
French (fr)
Inventor
Li Yang
Yinghua Huang
Weiguo Niu
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Shanghai Huawei Technologies Co., Ltd.
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Publication date
Application filed by Shanghai Huawei Technologies Co., Ltd. filed Critical Shanghai Huawei Technologies Co., Ltd.
Publication of WO2009086793A1 publication Critical patent/WO2009086793A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/005Discovery of network devices, e.g. terminals
    • 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
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, system and related device for optimizing a neighbor cell relationship list.
  • the bottom layer is a different network element, belonging to the managed device; the middle layer is the network element management system (EMS), which manages various activities of the network element; and the upper layer is the network management system (NMS).
  • EMS network element management system
  • NMS network management system
  • the activity of the network element is monitored and controlled by the network element management system.
  • the network element management system configures corresponding parameters to the network element.
  • the activity of the network element must be run within the scope of the network element management system configuration.
  • the network layout phase various parameters in the network need to be configured according to the layout of the network and the strategy of the operator; in the network operation phase, actual operation conditions are needed, and the performance parameters of the network are analyzed.
  • the network configuration is updated to optimize network performance and provide better service.
  • the Neighbor Cell Relationship List (NCL) is an important network parameter information, which describes the relationship between the cells.
  • the user terminal UE, hereinafter referred to as the terminal
  • UE can determine which cells need to be measured based on the parameter information. Based on this information, the performance parameters of the network are counted to reflect the quality of the network.
  • the neighbor cell relationship list is an important aspect, which has a great impact on the operator's operating cost and network performance.
  • the optimization of the neighbor cell relationship list in the cell is performed by manually collecting corresponding parameters, analyzing the results of the parameters, and manually updating.
  • the maintenance personnel of the operator analyze the fault data through the planning tool, the configuration information of the neighboring cells, and the corresponding parameters.
  • the test is performed in various parts of the network and the data obtained by the test is recorded to perform the relationship of the neighboring cells. Optimization analysis of the list.
  • the neighbor cell relationship of the cell is manually updated according to the result of the analysis.
  • Such an optimized method will consume a lot of manpower and material resources, and requires people with professional knowledge to participate.
  • the cost of network operation is greatly increased; from the results, the current optimization methods are relatively static, and the network performance cannot be updated in time. When there is a change in the wireless environment and network planning, this method cannot reflect the network changes in time and affect the service quality of the entire network.
  • the embodiment of the invention provides a method, a system and a related device for optimizing a neighbor cell relationship list, automatically updating and updating adjacent cells, establishing a connection between adjacent cells, and greatly reducing manpower and material resources. It can be updated in real time, reflecting changes in the network in a timely manner, and improving the service quality of the entire network.
  • a method for optimizing a neighbor cell relationship list includes the following steps:
  • the base station sends a message to the terminal for indicating the measurement of the neighboring cell
  • the base station receives the measurement information sent by the UE, where the measurement information includes a global identifier of the neighboring cell; and updates the neighbor cell relationship list according to the measurement information of the UE.
  • An X2 link establishing method comprising:
  • the base station sends a message to the terminal for indicating the measurement of the neighboring cell
  • the base station receives measurement information sent by the UE, where the measurement information includes a global identifier of the neighboring cell, and updates the X2 link between the base station and the target base station to which the neighboring cell belongs according to the global identifier.
  • the embodiment of the invention further provides a base station, including:
  • a neighboring cell discovery unit configured to send a measurement indication message to the terminal, and receive measurement information of the neighboring cell sent by the terminal, where the measurement information includes a global ID of the neighboring cell;
  • a neighboring cell relationship establishing unit configured to establish, according to the measurement information, a neighbor cell relationship of the neighbor cell relationship list.
  • the embodiment of the invention further provides an automatic optimization device, including:
  • a statistical data receiving unit configured to receive statistical data on the base station
  • the determining notification unit is configured to: if it is determined according to the statistical data and the planning data information, that the neighboring cell relationship list of the base station needs to be updated, notify the base station to update the neighbor cell relationship list.
  • the embodiment of the invention further provides a system for optimizing a neighbor cell relationship list, including:
  • the base station is configured to instruct the terminal to perform measurement on the neighboring cell, and the measurement information of the global identifier including the neighboring area sent by the receiving terminal is further used to receive the update of the neighboring cell relationship according to the global identifier of the neighboring area sent by the automatic optimization device.
  • the notification message is also used to update the neighbor cell relationship list according to the notification message.
  • the method, the system and the related device for optimizing the neighbor cell relationship list provided by the embodiment of the present invention automatically optimize and update the neighboring cells through the network for analyzing the statistical data, and establish a relationship between the neighboring cells.
  • Greatly reduced manpower and material resources Reduce the operating costs of the network. It can update in real time, reflect changes in the network in a timely manner, and improve the service quality of the entire network.
  • FIG. 1 is a flowchart of a method for optimizing a neighbor cell relationship list according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a first method for discovering a neighbor cell according to an embodiment of the present invention
  • FIG. 4 is a flowchart of a third method for discovering a neighboring cell according to an embodiment of the present invention
  • FIG. 5 is a fourth method for discovering a neighboring cell according to an embodiment of the present invention
  • FIG. 6 is a flowchart of a first method for updating a neighbor cell relationship according to an embodiment of the present invention
  • FIG. 1 is a flowchart of a method for optimizing a neighbor cell relationship list according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a first method for discovering a neighbor cell according to an embodiment of the present invention
  • FIG. 4 is a flowchart of a third method for discovering a neighboring cell according to an embodiment of the present invention
  • FIG. 5 is a fourth method for discovering a
  • FIG. 7 is a flowchart of a second method for updating a neighbor cell relationship according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of a first automatic optimization device according to an embodiment of the present invention
  • FIG. 12 is a schematic structural diagram of a second automatic optimization device according to an embodiment of the present invention
  • FIG. 14 is a schematic structural diagram of a terminal according to an embodiment of the present invention
  • FIG. 15 is a schematic structural diagram of a system for optimizing a neighbor cell relationship list according to an embodiment of the present invention.
  • FIG. 1 is a flowchart of a method for optimizing a neighbor cell relationship list according to an embodiment of the present invention
  • the method of relationship list including: Step 10: The base station (eg, the eNodeB, the evolved base station) discovers the neighboring cell; Step 11: The automatic optimization device updates the relationship of the neighboring cell according to the information discovered by the base station; Step 12: According to the update, the base station according to the update Update the neighbor cell relationship of the neighbor cell relationship list, and the update includes establishment and deletion.
  • the base station eg, the eNodeB, the evolved base station
  • the automatic optimization device updates the relationship of the neighboring cell according to the information discovered by the base station
  • Step 12 According to the update, the base station according to the update Update the neighbor cell relationship of the neighbor cell relationship list, and the update includes establishment and deletion.
  • FIG. 2 is a flowchart of a first method for discovering a neighboring cell according to an embodiment of the present invention. referring to the figure, the first method for discovering a neighboring cell includes:
  • Step 20 The base station sends an indication message for measuring the neighboring cell to the terminal.
  • the base station does not need to specify information such as frequency points;
  • the base station may specify that the terminal needs to measure the frequency of the neighboring cell, or may not specify;
  • the base station may specify that the terminal needs to measure the frequency of the neighboring cell, or may not specify;
  • the base station instructs the terminal to measure certain specific target cells according to actual needs.
  • the indication message sent by the base station may include the physical identifier (ID) of the specific target cell.
  • Step 21 The terminal performs measurement on the neighboring cell according to the indication message.
  • the terminal measures the neighboring cell according to the frequency point;
  • the terminal scans the neighboring cells of all frequency points to perform measurement.
  • Step 22 The terminal reports the measurement information of the neighboring cell to the base station, and the identifier information of the adjacent cell in the measurement information is physical.
  • Step 23 After receiving the neighbor cell measurement report of the terminal, the base station first searches for the neighbor cell relationship list according to the neighbor cell physical ID. If the cell exists in the local neighbor cell relationship list, the base station does not need to be established. If the neighboring cell is not found in the local neighbor cell relationship list, step 24 is performed.
  • Step 24 The base station instructs the terminal to listen to the broadcast information of the neighboring cell.
  • Step 25 The terminal listens to the broadcast information of the neighboring cell, and obtains a global ID of the neighboring cell from the broadcast information.
  • Step 26 The terminal reports the global ID of the neighboring cell that is detected to the base station.
  • FIG. 3 is a flowchart of a method for discovering a neighboring cell according to an embodiment of the present invention. referring to the figure, a second method for discovering a neighboring cell includes:
  • Step 30 The base station sends an indication message for measuring the neighboring cell to the terminal, and instructs the terminal to report the global ID of the neighboring cell.
  • the base station does not need to specify information such as frequency points;
  • the base station may specify the neighboring cell frequency point that the terminal needs to measure, or may not specify;
  • the base station may specify the neighboring cell frequency points that the terminal needs to measure, or may not specify;
  • the base station instructs the terminal to measure certain specific target cells according to actual needs.
  • the information indicated by the base station may include the physical ID of the specific target cell.
  • Step 31 The terminal performs measurement on the neighboring cell according to the measurement indication message, and listens to the broadcast information of the neighboring cell, and obtains the global ID of the neighbor cell from the broadcast information.
  • the terminal measures the neighboring cell according to the frequency point;
  • the terminal scans the neighboring cells of all frequency points to perform measurement.
  • Step 32 The measurement information of the neighboring cell on the terminal is sent to the base station, where the measurement information carries the global ID of the measured neighboring cell.
  • FIG. 4 is a flowchart of a third method for discovering neighboring cells according to an embodiment of the present invention. referring to the figure, a third method for discovering neighboring cells includes:
  • the default setting is that the terminal reports the global ID of the neighboring cell in the report of the measurement information.
  • the base station indicates in the broadcast message that the terminal does not report the global ID of the neighboring cell.
  • Step 40 The base station sends an indication message for measuring the neighboring cell to the terminal.
  • the base station does not need to specify information such as frequency points;
  • the base station may specify a neighboring cell frequency point that the terminal needs to measure, Can also not be specified;
  • the base station may specify the frequency of the adjacent cell that the terminal needs to measure, or may not specify;
  • the base station instructs the terminal to measure certain specific target cells according to actual needs, and the information indicated by the base station may include the physical ID of the specific target cell.
  • Step 41 The terminal listens to the broadcast information of the neighboring cell, and obtains the global ID of the neighboring cell from the broadcast information of the neighboring cell. If the local cell does not indicate the global ID of the neighboring cell, the terminal does not read the neighboring cell. Widely sigh
  • Step 42 The terminal uses the measurement indication message to measure the neighboring cell.
  • the terminal measures the neighboring cell according to the frequency point;
  • the terminal scans the neighboring cells of all frequency points and performs measurement.
  • Step 43 The terminal reports the measurement result of the neighboring cell to the base station, where the measurement report carries the global ID of the measured neighboring cell.
  • FIG. 5 is a flowchart of a fourth method for discovering neighboring cells according to an embodiment of the present invention. referring to the figure, a fourth method for discovering neighboring cells includes:
  • Step 50 The default setting of the terminal is that the terminal does not report the global ID of the neighboring cell in the reported measurement information, and the base station indicates the terminal when the broadcast message of the terminal indicates that the terminal needs to report the global ID of the neighboring cell. The global ID of the neighboring cell needs to be reported;
  • Step 51 The base station sends an indication message for measuring the neighboring cell to the terminal.
  • the base station does not need to specify information such as frequency points;
  • the base station may specify the neighboring cell frequency point that the terminal needs to measure, or may not specify;
  • the base station may specify the neighboring cell frequency points that the terminal needs to measure, or may not specify;
  • the base station instructs the terminal to measure certain specific target cells according to actual needs, and the information indicated by the base station may include a specific target cell. ID.
  • Step 52 The terminal acquires the global ID of the neighboring cell from the neighboring area broadcast information according to the indication of the broadcast message.
  • Step 53 The terminal performs measurement on the neighboring cell according to the measurement indication message.
  • the terminal measures the neighboring cell according to the frequency point
  • the terminal scans the neighboring cell that does not specify the frequency point, and performs measurement.
  • Step 54 The measurement information of the neighboring cell on the terminal is sent to the base station, and the measurement information carries the global ID of the measured neighboring cell.
  • FIG. 6 is a flowchart of a first method for updating a neighbor cell relationship according to an embodiment of the present invention.
  • the method for updating a neighbor cell relationship is performed by an automatic optimization device, including:
  • Step 61 The base station performs statistics on measurement information of the terminal.
  • Step 62 The base station reports the measurement to the automatic optimization device, where the measurement information includes the measurement information of the terminal and the other statistics of the base station, such as: switching the corresponding statistics, etc.;
  • Step 63 automatically optimizing the device according to the measurement statistics Data, network planning data (planning data) information (may also include some of the operator's policy information), etc., to determine whether it is necessary to update the neighbor cell relationship list of the base station; if the update is required, step 64;
  • Step 64 The automatic optimization device notifies the base station to update the neighbor cell relationship list.
  • Step 65 The base station updates the local neighbor cell relationship list according to the notification of the automatic optimization device.
  • the X2 link between the neighboring base stations may be updated according to the result of the update of the neighbor cell relationship list, including the following steps:
  • Step 66 The automatic optimization device determines, according to the updated neighbor cell relationship, whether an X2 link between the neighboring base stations (a contact interface between the base stations) needs to be updated (including establishing, deleting, or modifying bandwidth). Then perform step 67;
  • Step 67 The automatic optimization device triggers the base station to update the corresponding X2 link, indicating that the base station is more New related X2 link;
  • Step 68 The base station updates the related X2 link according to the decision of the automatic optimization device.
  • FIG. 7 is a flowchart of a method for updating a relationship between neighboring cells according to an embodiment of the present invention.
  • the method for updating a neighbor cell relationship is jointly performed by a base station and an automatic optimization device, and includes:
  • Step 71 The base station performs statistics on measurement information of the terminal.
  • Step 72 The base station determines, according to the measurement statistics, the planning data information (including some policies of the operator), whether to update the neighbor cell relationship list (including establishment or deletion) of the evolved base station, and if the update is required, perform the steps. 73;
  • the planningData information here needs to be automatically sent to the base station by the automatic optimization device or the base station actively requests the automatic optimization device to obtain;
  • Step 73 The base station reports the decision information and the measurement statistics to the automatic optimization device.
  • the cell relationship list is updated;
  • Step 75 The base station updates the local neighbor cell relationship list according to the decision of the automatic optimization device.
  • the X2 link between the neighboring base stations may be updated according to the result of the update of the neighbor cell relationship list, including the following steps:
  • Step 76 The automatic optimization device determines, according to the updated neighboring cell relationship, whether the X2 link between the neighboring base stations needs to be updated (including establishing, deleting, or modifying the bandwidth); if the update is required, step 77 is performed;
  • Step 77 The automatic optimization device triggers the base station to update the corresponding X2 link, and instructs the base station to update the related X2 link.
  • Step 78 The base station updates the related X2 link according to the decision of the automatic optimization device.
  • FIG. 8 is a flowchart of a third method for updating a neighbor cell relationship according to an embodiment of the present invention.
  • the method for updating a neighbor cell relationship is performed by a base station, including:
  • Step 81 The base station performs statistics on measurement information of the terminal.
  • Step 82 The base station determines, according to the measurement statistics, the planning data information (including some strategies of the operator), whether to optimize the neighbor cell relationship list (including establishment or deletion) of the update base station, and if the update is required, perform the steps.
  • the planning data information here needs to be automatically sent to the base station by the automatic optimization device or the base station actively requests the automatic optimization device to obtain;
  • Step 84 The base station determines, according to the updated neighboring cell relationship, whether the X2 link between the neighboring base stations needs to be updated (including establishing, deleting, or modifying the bandwidth), if the update is required, step 85 is performed;
  • Step 85 The base station requests the automatic optimization device to configure corresponding information of the X2 link, such as address information of the base station at both ends of the link, where the corresponding information carries information updated by the neighbor cell relationship list;
  • Step 86 Automatically optimize the device to update the local neighbor cell relationship list configuration, and configure the corresponding X2 link according to the request of the base station;
  • Step 87 The automatic optimization device returns the configuration information of the X2 link to the base station, and instructs the base station to update the related X2 link.
  • Step 88 The base station updates and updates the related X2 link according to the previous X2 link update decision result and the configuration of the automatic optimization device.
  • the method for updating the neighboring cell is described in detail above.
  • the principle of optimizing the neighbor cell relationship list is described in detail below. Specifically, the measurement information statistics, the deletion of the neighbor cell relationship, the establishment of the neighbor cell relationship, the processing of the special cell, and The neighbor cell relationship list function is described in detail.
  • the network side collects statistics on the measurement information of the terminal, including the statistics of the number of times the terminal measures a certain cell, and the statistics of the handover status of the terminal. For each corresponding cell, there is a measurement and statistics item on the network side that measures the measurement information of the terminal to record the statistics of the measurement information of the cell.
  • the network side periodically checks the measurement information statistics of each cell. If, during the set time, the network side counts that the number of times a certain cell is measured is greater than the set threshold, it is first determined whether the cell is in the local neighbor cell relationship list, if not in the local neighbor cell relationship list. Further, the operator's restrictions are further considered, such as whether the cell prohibits handover of the cell, is subject to geographical restrictions, and the like. If there is no restriction, the cell is established into the local cell neighbor cell relationship list. If it already exists in the local cell neighbor cell relationship list, the cell does not need to be established in the local cell neighbor cell relationship list. 3. Deletion of neighboring cell relationships
  • the network side For each cell, the network side has a corresponding measurement statistic item, which is used to record the measurement statistics of the cell.
  • the network side cycle checks the measurement statistics of each cell. If, during the set time, a certain measurement statistic of a certain cell of the network side is greater than the set threshold, the network side considers that the cell is not suitable as the neighboring cell of the source cell, and is in the neighbor cell relationship list. Delete the neighbor cell relationship of the cell.
  • the measurement statistics items of the network side to determine whether to delete the neighbor cell relationship include but are not limited to the following cases: (1) handover failure statistics
  • the network side statistics the failure of switching to the target cell. If the number of failures of the source cell to the target cell or the handover failure rate reaches the set threshold within the set time, the cell is considered to be unsuitable as the neighboring cell of the source cell, and the phase is deleted from the neighbor cell relationship list. Neighbor relationship.
  • the network side If the number of radio link failures reaches the set threshold within the set time after the terminal is switched to the target cell, the network side considers that the target cell is not suitable as the neighboring cell of the source cell, from the neighbor cell relationship list. Delete the neighbor cell relationship.
  • the handover can be considered as a fast sequential handover. If the number of fast handovers from cell A to cell B to cell C is greater than the set threshold within a set time, the neighbor cell relationship of cell A and B may be deleted, and the phase of cell A and cell C may be established. The neighbor cell relationship causes the terminal to directly switch from cell A to cell B.
  • the network side deletes the neighboring cell relationship that should exist.
  • the network side can join the neighbor cell relationship list by establishing the neighbor cell relationship.
  • such neighboring cell relationships may be deleted and then established, such as in a tunnel on a highway.
  • the specific cell can be made a specific indication by the network, that is, the neighbor cell relationship of the cell is not allowed to be modified. There are two methods for determining such a special cell: 1.
  • the cell is configured as a special cell when the network is deployed, and the network indicates that modification of the relationship of the neighboring cell is prohibited;
  • the special cell is determined according to the performance data statistics of the network operation phase: If a cell is deleted and established multiple times in the same neighbor cell relationship within a certain period of time, if the threshold is exceeded, the network side It is determined that the cell belongs to a special cell, and modification of the neighbor cell relationship of the cell is prohibited.
  • the usage of the neighbor cell relationship list can be divided into two cases:
  • the neighbor cell relationship list is used to limit the measurement and handover target of the terminal; when the terminal is performing measurement and handover of the neighboring cell, for the selection of the target cell, the neighbor cell relationship list is mainly What is saved is the neighbor cell relationship with the switching relationship. For example, after the terminal switches to a certain cell, the radio link fails quickly, indicating that the cell is not suitable as the neighboring cell of the source cell, and the neighbor cell relationship list of the source cell should be the prohibited cell handover cell; For another example: After the terminal switches from cell A to cell B, it immediately switches to cell C.
  • the terminal can be directly switched from cell A to cell C without having to go through cell B, then the phase in cell A Cell B should be used as a forbidden handover cell in the neighbor cell relationship list.
  • the terminal performs measurement and handover, according to such a cell neighbor cell relationship list, the measurement is not performed on these forbidden handover cells.
  • the neighbor cell relationship list is used to establish an X2 link, and exchanges radio resource management (RM) information; the neighbor cell relationship list stores neighbors of cells with mutual influence factors. Community relationship.
  • the base station/automatic optimization device may establish an X2 link between the base stations to which the cells with neighboring cell relationships belong according to the neighbor cell relationship list, and exchange RRM information.
  • the neighbor cell relationship list is distinguished from the neighbor cell relationship list for the terminal. Regardless of whether there is a handover relationship between cells, as long as there is an influence between each other, such as interference, such as radio resources, they can be used as neighbor cells. .
  • the base station In the process of establishing a neighboring cell relationship, the base station knows only the global ID of the target cell. To establish the neighbor cell relationship of the cell, the base station needs to know the corresponding attribute information of the target cell. For the base station, the neighboring cell relationship of the cell is established, and the most important thing is to acquire the information of the target cell. There are several methods for obtaining information of a target cell and establishing a relationship of a neighboring cell. 1. There is corresponding information of the target cell in the source base station.
  • the target cell may be one of the cells of the source base station, and the source base station may store the information of the target cell. In this case, the source base station may directly obtain the information of the target cell.
  • Solution 1 The source base station queries the neighboring target base station through the X2 link to obtain information about the target cell. Specifically, the source base station acquires the corresponding information of the target base station according to the base station identifier in the global ID of the target cell. If an X2 link exists between the source base station and the target base station, the source base station queries the target base station through the X2 link to obtain the target. The information of the cell, thereby establishing the relationship between the neighboring cell of the source cell and the target cell.
  • Solution 2 The source base station queries the target base station by using a Mobility Management Entity (MME) to obtain information about the target cell:
  • MME Mobility Management Entity
  • the source base station obtains the corresponding information of the target base station according to the base station identifier in the global ID of the target cell. If there is no X2 link between the source base station and the target base station, the source base station can find the target base station through the MME, and obtain the information of the target cell. Establishing a neighbor cell relationship between the source cell and the target cell.
  • Solution 3 The source base station obtains the target cell information by automatically optimizing the device:
  • the source base station obtains the information of the target cell by using the automatic optimization device according to the global ID of the target cell: the source base station sends the target cell query request, or notifies the automatic optimization device to which the source base station belongs, carries the global ID of the target cell, and requests the query target.
  • the cell information is automatically optimized according to the global ID of the target cell, and is first searched locally. If the target cell is not within the scope of the automatic optimization device management, the device automatically optimizes the device according to the target base station identifier in the target cell global ID.
  • the address/name server obtains the automatic optimization device information of the target cell, and obtains the information of the target cell by using the horizontal interface between the source automatic optimization device and the target automatic optimization device, thereby establishing a neighbor cell relationship between the source cell and the target cell.
  • the source base station obtains the target cell information by using the handover indication information sent by the MME.
  • the MME In the terminal handover process triggered by the source base station, if there is no X2 link between the source base station and the target base station, the MME is required to complete the handover process. .
  • the MME needs to forward the handover response message of the target base station to the terminal, and the source base station serves as a forwarding node, and can use the acquired The handover response message is used to obtain information about the target cell, thereby establishing a neighbor cell relationship between the source cell and the target cell.
  • the source base station obtains the target cell information by establishing the X2 link with the target base station: when the source base station establishes the neighbor cell relationship between the source cell and the target cell, the source base station may first establish an X2 link between the source base station and the target base station. Through the established X2 link, the information of the target cell is queried, and the relationship between the neighboring cell of the source cell and the target cell is established.
  • the X2 link between the neighboring cells can be further established. There are four solutions for completing the X2 link establishment process.
  • the X2 link is determined by the automatic optimization device.
  • the automatic optimization device determines to establish an X2 link between the source base station and the target base station, and the automatic optimization device directly sends the source and destination base station address information and the X2 link configuration information directly to the corresponding source and target base stations of the X2 link.
  • the source and target base stations establish an X2 link according to the configuration information of the automatic optimization device.
  • the process of automatically optimizing the device to determine the address of the target base station and the configuration information of the X2 link includes: 1) the automatic optimization device first searches for the address of the target base station locally according to the identification information of the target base station (ie: ID); if there is no target locally
  • the source automatic optimization device searches for the automatic optimization device corresponding to the target base station according to the identifier of the target base station, and automatically obtains information such as the address of the target base station by automatically optimizing the horizontal interface between the devices.
  • the automatic optimization device directly queries the corresponding address/name server according to the identification information of the target base station, and obtains the address information of the target base station.
  • Solution 2 The base station decides to establish an X2 link.
  • the source base station reports the decision status to the automatic optimization device, and the automatic optimization device searches for the address information of the target base station, performs the configuration of the X2 link, and sends the information to the source and target base stations to complete the establishment of the X2 link.
  • the process of the automatic optimization device determining the address of the target base station and the configuration information of the X2 link includes: 1) the automatic optimization device first searches for the address of the target base station locally according to the identification information of the target base station; if there is no information such as the address of the target base station locally
  • the source automatic optimization device searches for the target automatic optimization device corresponding to the target base station according to the identification information of the target base station, and obtains information such as the address of the target base station through the horizontal interface between the source automatic optimization device and the target automatic optimization device.
  • the automatic optimization device directly queries the corresponding address/name server according to the identification information of the target base station, and obtains the address information of the target base station.
  • the source base station searches for the address information of the target base station, and automatically optimizes the device by determining the X2 link and the address information of the target base station, and the X2 link is configured by the automatic optimization device, and the configuration is performed.
  • the information, the address information, and the decision information are sent to the source and the target base station to complete the establishment of the X2 link.
  • the source base station searches for the address information of the target base station, finds the target base station by using the address information, completes the establishment of the X2 link according to the configuration information of the default X2 link, and reports the configuration information to the automatic optimization device.
  • the source base station searches for the address information of the target base station, which may be: 1.
  • the source base station automatically optimizes the device query according to the identifier information of the target base station; 2.
  • the source base station according to the identifier of the target base station Query by the MME; 3.
  • the source base station queries by the address/name server according to the identifier of the target base station.
  • the default configuration of the X2 link needs to be set in the source base station beforehand.
  • FIG. 9 is a schematic structural diagram of the base station according to an embodiment of the present invention.
  • the base station includes:
  • a neighboring cell discovery unit 90 configured to discover neighboring cells
  • the neighboring cell relationship establishing unit 91 is configured to establish a neighbor cell relationship of the neighbor cell relationship list. Further, the neighboring cell discovery unit 90 is further configured to: send a measurement indication message to the terminal, and then receive a report of the measurement information of the neighboring cell sent by the terminal, where the information carries the global ID of the measured neighboring cell. , that is, the neighboring cell is found.
  • an embodiment of the present invention provides another base station, where the base station includes:
  • the neighboring cell discovery unit 100 is configured to discover the neighboring cell. Specifically, the method sends a measurement indication message to the terminal, and then receives a report of the measurement information of the neighboring cell sent by the terminal, where the information carries the measured neighboring cell.
  • the global ID that is, the neighboring cell is found.
  • the measurement information statistic unit 101 performs statistics on the measurement information of the terminal 108, and is specifically used for statistics on handover failure of the terminal 108, radio link failure statistics after handover, and fast handover statistics.
  • the information reporting unit 102 is configured to report the statistical data to the automatic optimization device 107.
  • the notification receiving unit 103 is configured to receive the automatic optimization device 107 to notify the base station to update the adjacent small Area relationship list;
  • the list updating unit 104 updates the local neighbor cell relationship list according to the notification of the automatic optimization device 107, that is, updates the local neighbor cell relationship list, and the update includes establishment or deletion.
  • the first interface updating unit 105 updates the corresponding X2 link according to the decision of the automatic optimization device 107, that is, updates the corresponding X2 link, and the update includes establishing or deleting.
  • the neighbor cell relationship establishing unit 106 is configured to establish a neighbor cell relationship of the neighbor cell relationship list.
  • the neighbor cell relationship establishing unit 106 is mainly used to acquire information of the target cell. There are several ways to obtain information about the target cell:
  • the target cell may be one of the cells of the source base station, and the source cell may store the information of the target cell.
  • the source base station may directly obtain the information of the target cell.
  • Solution 1 The source base station queries the neighboring base station through the X2 link to obtain the information of the target cell.
  • the source base station acquires the corresponding information of the target base station according to the base station identifier in the global ID of the target cell, if the source base station and the target base station exist.
  • the source base station queries the target base station through the X2 link to obtain information about the target cell, thereby establishing a neighbor cell relationship between the source cell and the target cell.
  • the source base station obtains the information of the target cell by using the MME to query the target base station: the source base station acquires the corresponding information of the target base station according to the base station identifier in the global ID of the target cell, if there is no X2 link between the source base station and the target base station. Then, the source base station can find the target base station through the MME, and obtain information about the target cell, thereby establishing a neighbor cell relationship between the source cell and the target cell.
  • Solution 3 The source base station obtains the target cell information by automatically optimizing the device:
  • the source base station obtains the information of the target cell by using the automatic optimization device according to the global ID of the target cell: the source base station sends the target cell query request or the notification to the automatic optimization device to which the source base station belongs, carries the global ID of the target cell, and requests to query the target cell.
  • the automatic optimization device searches for the local cell first according to the global ID of the target cell. If the target cell is not within the scope of the automatic optimization device management, the device automatically optimizes the target base station identifier according to the target cell global ID, and queries the corresponding address. /name
  • the server obtains the target automatic optimization device information of the target cell, and obtains the information of the target cell by using the horizontal interface between the source automatic optimization device and the target automatic optimization device, thereby establishing a neighbor cell relationship between the source cell and the target cell.
  • the source base station obtains the target cell information by using the handover indication information sent by the MME.
  • the MME In the terminal handover process triggered by the source base station, if there is no X2 link between the source base station and the target base station, the MME is required to complete the handover process. .
  • the MME needs to forward the handover response message of the target base station to the terminal, and the source base station, as a forwarding node, can obtain the information of the target cell by using the obtained handover response message, thereby establishing the phase of the source cell and the target cell. Neighbor relationship.
  • the source base station acquires the target cell information by establishing an X2 link with the target base station: When establishing the neighbor cell relationship between the source cell and the target cell, the source base station first establishes an X2 link between the source base station and the target base station, and adopts The established X2 link queries the information of the target cell and establishes the relationship between the neighboring cell of the source cell and the target cell.
  • FIG. 11 is a schematic structural diagram of the automatic optimization device according to an embodiment of the present invention.
  • the automatic optimization device includes: a cell update unit 115, Used to update the relationship of neighboring cells.
  • the cell update unit 115 further includes:
  • the statistical data receiving unit 110 receives the statistical data reported by the base station 114;
  • the determining notification unit 111 determines whether it is necessary to update the neighbor cell relationship list of the base station 114, and notifies the base station 114 to update the neighbor cell relationship list; or, further includes:
  • the second interface update unit 112 determines whether it is necessary to update the X2 link between the adjacent base stations 114 according to the updated neighbor cell relationship.
  • the update trigger unit 113 triggers the base station 114 to update the corresponding X2 link.
  • the automatic optimization device includes a cell update unit 125, configured to update a relationship of neighboring cells.
  • the cell update unit 125 further includes: an information receiving unit 120, configured to receive the decision information and statistics reported by the base station 124.
  • the second update triggering unit 121 updates the local neighbor cell relationship list according to the determination of the base station 124, and triggers Corresponding neighboring cells, updating the neighbor cell relationship list of the cell; Or, it also includes:
  • the third interface update unit 122 determines whether it is necessary to update the X2 link between the adjacent base stations 124 according to the updated neighbor cell relationship.
  • the update message transmitting unit 123 transmits a decision of the X2 link update to the base station 124.
  • the third embodiment of the present invention further provides a third automatic optimization device.
  • the automatic optimization device includes a cell update unit 134 for updating the relationship of neighboring cells.
  • the cell update unit 134 further includes: a configuration information receiving unit 130, configured to receive information corresponding to the requesting configuration X2 link sent by the base station 133, where the information carries information updated by the neighbor cell relationship list;
  • the configuration update unit 131 is configured to update the configuration of the local neighbor cell relationship list, specifically: configuring the corresponding X2 link according to the request of the base station 133;
  • the configuration information returning unit 132 returns the configuration information of the X2 link to the base station 133.
  • FIG. 14 is a schematic structural diagram of the terminal according to an embodiment of the present invention.
  • the terminal 144 includes:
  • the measurement indication information receiving unit 140 receives the measurement indication information sent by the base station 143;
  • the measuring unit 141 the neighboring cell is measured according to the measurement indication information; and the broadcast information of the neighboring cell is also intercepted according to the indication information, and the global ID of the neighboring cell is obtained;
  • the measurement information reporting unit 142 reports the measured information of the measured neighboring cell to the base station 143. If the measuring unit 141 acquires the global ID of the neighboring cell, the reporting information includes the global ID of the neighboring cell.
  • the first embodiment of the present invention further provides a system for optimizing a neighbor cell relationship list
  • FIG. 15 is a schematic structural diagram of a system for optimizing a neighbor cell relationship list according to an embodiment of the present invention.
  • the system includes a terminal 150, a base station 151, and an automatic optimization device 152. among them:
  • the base station 151 is configured to discover a neighboring cell. Specifically, the base station 151 sends a measurement indication message to the terminal 150. The terminal 150 receives the indication information, performs measurement on the neighboring cell according to the indication message, and measures the neighboring cell. The information is reported to the base station 151. The base station 151 performs statistics on the measurement information reported by the terminal 150, and reports the statistical data to the automatic optimization device 152;
  • the automatic optimization device 152 is configured to update the neighboring cell according to the information about the neighboring cell discovered by the terminal. Specifically, according to the statistical data and the planning data information, determine whether to update the neighbor cell relationship list of the base station 151, and if updated, notify the The base station 151 performs an update of the neighbor cell relationship list; The base station 151 then establishes a neighbor cell relationship of the neighbor cell relationship list according to the update of the automatic optimization device 152.
  • the automatic optimization device 152 further determines whether the X2 link between the adjacent base stations 151 needs to be updated according to the updated neighbor cell relationship; if updated, the base station 151 is triggered to update the corresponding X2 link;
  • the base station 151 updates the corresponding X2 link according to the decision of the automatic optimization device 152.
  • the embodiment of the present invention provides a second system for optimizing a neighbor cell relationship list.
  • the structure of the system is shown in FIG. 15.
  • the system includes:
  • the base station 151 instructs the terminal 150 to perform measurement on the neighboring cell, and performs measurement on the measurement information of the terminal 150, and determines whether to update the neighbor cell relationship list of the base station 151 according to the statistical data and the planning data information; if updated, according to the local The neighbor cell relationship list is updated, and the decision information and the statistics data are reported to the automatic optimization device 152;
  • the automatic optimization device 152 updates the local neighbor cell relationship list according to the determination of the base station 151, and triggers the corresponding neighboring cell to update the cell neighbor cell relationship, and determines whether the neighboring base station needs to be used according to the updated neighbor cell relationship.
  • the X2 link between 151 is updated, and the update decision information described by the X2 link is sent to the base station 151;
  • the base station 151 updates the corresponding X2 link according to the decision of the automatic optimization device 152.
  • the embodiment of the present invention provides a second system for optimizing a neighbor cell relationship list.
  • the structure of the system is shown in FIG. 15.
  • the system includes:
  • the base station 151 instructs the terminal 150 to perform measurement on the neighboring cell, and collects statistics on the measurement information of the terminal 150. Based on the statistical data and the information of the planning data, it is determined whether to update the neighbor cell relationship list of the base station 151. If the base station 151 updates, the base station 151 The decision is made to update the local neighbor cell relationship list, and the base station 151 determines whether it is necessary to update the X2 link between the neighboring base stations according to the updated neighbor cell relationship. If updated, the base station 151 requests the configuration from the automatic optimization device 152. The information corresponding to the X2 link carries the information updated by the neighbor cell relationship list;
  • the base station 151 performs the corresponding X2 link according to the determination and configuration of the X2 link update. New.
  • the update in all of the above embodiments includes an update, i.e., updating the neighbor cell relationship list or X2 link.
  • the automatic optimization device in all of the above embodiments may be an EMS or a separate node.
  • the method, the system, and the related device for optimizing the neighbor cell relationship list provided by the embodiments of the present invention are described in detail.
  • the embodiments of the present invention in the specific implementation manner and application, There is a change in scope, and the contents of the embodiments of the present specification are not to be construed as limiting the invention.

Description

优化相邻小区关系列表的方法、 系统及相关设备 本申请要求于 2008 年 01 月 04 日提交中国专利局、 申请号为 200810032354.9、 发明名称为 "优化相邻小区关系列表的方法、 系统及相关设 备" 的中国专利申请的优先权, 其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信领域,特别涉及优化相邻小区关系列表的方法、 系统及相 关设备。
背景技术
在移动通讯网络的结构中, 底层为不同的网元, 属于被管设备; 中间层为 网元管理系统(EMS ), 管理网元的各种活动; 上层为网络管理系统(NMS )。 在这个管理体系结构中, 网元的活动受网元管理系统监视和控制, 网元管理系 统配置相应的参数给网元, 网元的活动必须在网元管理系统配置的范围内运 行。
在移动通讯网络中,在网络的布置阶段, 需要根据网络的布局情况以及运 营商的策略来配置网络中的各种参数;在网络运行阶段,需要实际的运行情况, 分析网络的性能参数, 对网络配置进行更新, 优化网络的性能, 提供更好得服 务。
相邻小区关系列表( NCL )是一个重要的网络参数信息, 它描述了小区之 间的相互关系, 用户终端 (UE, 以下简称终端)可以基于此参数信息确定需 要对哪些小区进行测量, 网络可以基于此信息来统计网络的性能参数,反映网 络的质量。
在对网络配置参数进行更新,优化网络性能的过程中,相邻小区关系列表 是一个很重要的方面, 对于运营商的运营成本、 网络的性能有很大的影响。
在目前的移动通信网络中,对小区中相邻小区关系列表的优化, 都是通过 人工收集相应参数, 分析参数的结果, 人工的进行更新。运营商的维护人员通 过规划工具、相邻小区的配置信息和相应参数分析故障数据,有时候甚至通过 路测等方法在网络内各处进行测试并记录测试所得的数据从而进行相邻小区 的关系列表的优化分析。 然后根据分析的结果手工地更新小区的相邻小区关 系。 这样优化的方法会耗费大量的人力物力, 需要有专业知识的人员来参与, 大大的增加了网络运营的成本; 从结果上来说, 目前优化的方法都是相对静态 的, 无法做到对网络性能的及时更新。在无线环境和网络规划时有发生变化的 时候, 这种方式不能及时地反映网络的变化, 影响整个网络的服务质量。
发明内容
本发明实施例提供了一种优化相邻小区关系列表的方法、 系统及相关设 备, 自动地优化更新相邻小区, 建立相邻小区之间的联系, 大大减轻了人力和 物力。 并能实时的进行更新, 及时反映网络的变化, 提高了整个网络的服务质 量。
本发明实施例所提供的优化相邻小区关系列表的方法、系统及相关设备是 通过以下技术方案实现的:
一种优化相邻小区关系列表的方法 , 包括以下步骤:
基站向终端发送用于指示测量邻区的消息;
所述基站接收 UE发送的测量信息 , 该测量信息包含邻区的全局标识; 根据所述 UE的测量信息更新相邻小区关系列表。
一种 X2链路建立方法, 其特征在于, 包括:
基站向终端发送用于指示测量邻区的消息;
所述基站接收 UE发送的测量信息 , 该测量信息包含邻区的全局标识; 才艮据所述全局标识更新所述基站与所述邻区所属目标基站之间的 X2链 路。
本发明实施例还提供一种基站, 包括:
相邻小区发现单元, 用于向终端发送测量指示消息,接收终端发送的相邻 小区的测量信息, 所述的测量信息包含所述相邻小区的全局 ID;
相邻小区关系建立单元 ,用于根据所述测量信息建立相邻小区关系列表的 相邻小区关系。
本发明实施例还提供一种自动优化设备, 包括:
统计数据接收单元 , 用于接收基站上 ^艮的统计数据;
决定通知单元, 用于如果根据所述的统计数据、 planning Data信息, 决定 需要更新所述基站的相邻小区关系列表, 通知基站更新相邻小区关系列表。
本发明实施例还提供一种优化相邻小区关系列表的系统, 包括: 基站, 用于指示终端对相邻小区进行测量,接收终端发送的包含邻区的全 局标识的测量信息,还用于接收自动优化设备发送的根据所述邻区的全局标识 确定更新相邻小区关系的通知消息,还用于才 据该通知消息更新相邻小区关系 列表。
本发明实施例所提供的优化相邻小区关系列表的方法、 系统及相关设备, 通过网络对于统计数据的分析, 自动地优化更新相邻小区, 建立相邻小区之间 的联系。 大大减轻了人力和物力。 减少了网络的运营成本。 并能实时的进行更 新, 及时反映网络的变化, 提高了整个网络的服务质量。
附图说明
图 1为本发明实施例提供的优化相邻小区关系列表的方法流程图; 图 2为本发明实施例提供的第一种发现相邻小区方法的流程图; 图 3为本发明实施例提供的第二种发现相邻小区方法的流程图; 图 4为本发明实施例提供的第三种发现相邻小区方法的流程图; 图 5为本发明实施例提供的第四种发现相邻小区方法的流程图; 图 6为本发明实施例提供的第一种更新相邻小区关系方法的流程图; 图 7为本发明实施例提供的第二种更新相邻小区关系方法的流程图; 图 8为本发明实施例提供的第三种更新相邻小区关系方法的流程图; 图 9为本发明实施例提供的一种基站的结构示意图;
图 10为本发明实施例提供的另一种基站的结构示意图;
图 11为本发明实施例提供的第一种自动优化设备的结构示意图; 图 12为本发明实施例提供的第二种自动优化设备的结构示意图; 图 13为本发明实施例提供的第三种自动优化设备的结构示意图; 图 14为本发明实施例提供的一种终端的结构示意图;
图 15为本发明实施例提供的一种优化相邻小区关系列表的系统结构示意 图。
具体实施方式
下面结合附图和实施例, 对本发明的具体实施方式作进一步详细描述: 图 1为本发明实施例提供的一种优化相邻小区关系列表的方法流程图; 参照该图, 该优化相邻小区关系列表的方法, 包括: 步骤 10、 基站(如: eNodeB, —种演进的基站)发现相邻小区; 步骤 11、 自动优化设备根据所述基站发现的信息更新相邻小区的关系; 步骤 12、 基站根据所述的更新, 更新相邻小区关系列表的相邻小区关系, 所述的更新包括建立和删除。
下面具体描述基站怎样发现相邻小区。图 2为本发明实施例提供的第一种 发现相邻小区方法的流程图; 参见该图, 第一种发现相邻小区方法包括:
步骤 20、 基站向终端发送测量相邻小区的指示消息;
( 1 )对于同频相邻小区, 基站不需要指定频点等信息;
( 2 )对于异频相邻小区, 基站可以指定终端需要测量相邻小区的频点, 也可以不指定;
( 3 )对于系统间相邻小区 ,基站可以指定终端需要测量相邻小区的频点, 也可以不指定;
( 4 )对于一些特殊的情况(例如隧道等) 时, 基站根据实际需要指示终 端测量某些特定的目标小区,基站发送的指示消息中可能包含特定的目标小区 的物理标识(ID )。
步骤 21、 终端根据所述指示消息, 对相邻小区进行测量;
( 1 )如果异频相邻小区或者系统间相邻小区测量指示消息中指定相邻小 区频点的 , 终端根据所述的频点对相邻小区进行测量;
( 2 )如果异频相邻小区或者系统间相邻小区测量指示消息中没有指定相 邻小区的频点, 终端扫描所有频点的相邻小区, 进行测量。
步骤 22、 终端上报对相邻小区的测量信息给基站, 测量信息中的相邻小 区标识信息为物理 Π
步骤 23、基站收到终端的相邻小区测量报告之后, 首先根据相邻小区物理 ID在本地相邻小区关系列表中查找,如果在本地相邻小区关系列表中存在该小 区, 则不需要建立该小区列表; 如果基站在本地相邻小区关系列表中没有发现 该相邻小区, 则执行步骤 24。
步骤 24、 基站指示终端侦听该相邻小区的广播信息;
步骤 25、终端侦听该相邻小区的广播信息,从该广播信息中获取该相邻小 区的全局 ID; 步骤 26、 终端上报所侦听到的相邻小区的全局 ID给基站。
图 3 为本发明实施例提供的第二种发现相邻小区方法的流程图; 参见该 图, 第二种发现相邻小区方法包括:
步骤 30、 基站向终端发送测量相邻小区的指示消息, 指示终端报告相邻 小区的全局 ID。
( 1 )对于同频相邻小区, 基站不需要指定频点等信息;
( 2 )对于异频相邻小区, 基站可以指定终端需要测量的相邻小区频点, 也可以不指定;
( 3 )对于系统间相邻小区,基站可以指定终端需要测量的相邻小区频点, 也可以不指定;
( 4 )对于一些特殊的情况(例如隧道等) 时, 基站根据实际需要指示终 端测量某些特定的目标小区 ,基站指示的信息中可能包含特定的目标小区的物 理 ID。
步骤 31、 终端 据测量指示消息, 对相邻小区进行测量, 并侦听相邻小 区的广播信息, 从所述的广播信息中获 目邻小区的全局 ID。
( 1 )如果异频相邻小区或者系统间相邻小区测量指示消息中指定相邻小 区频点的 , 终端根据频点对相邻小区进行测量;
( 2 )如果异频相邻小区或者系统间相邻小区测量指示消息中没有指定相 邻小区频点的, 终端扫描所有频点的相邻小区, 进行测量。
步骤 32、 终端上 对相邻小区的测量信息给基站, 该测量信息中携带所 测量的相邻小区的全局 ID。
图 4 为本发明实施例提供的第三种发现相邻小区方法的流程图; 参见该 图, 第三种发现相邻小区方法包括:
本实施例中 , 默认设置为终端在测量信息的报告中上报相邻小区的全局 ID, 对于不需要相邻小区全局 ID的情况, 基站在广播消息中指示终端不上报 相邻小区的全局 ID;
步骤 40、 基站向终端发送测量相邻小区的指示消息;
( 1 )对于同频相邻小区, 基站不需要指定频点等信息;
( 2 )对于异频相邻小区, 基站可以指定终端需要测量的相邻小区频点, 也可以不指定;
( 3 )对于系统间小区, 基站可以指定终端需要测量的相邻小区频点, 也 可以不指定;
( 4 )对于一些特殊的情况(例如隧道等) 时, 基站根据实际需要指示终 端测量某些特定的目标小区,基站指示的信息中可能包含特定的目标小区的物 理 ID。
步骤 41、 终端侦听相邻小区的广播信息, 从相邻小区广播信息中获取相 邻小区的全局 ID, 如果本小区指示不上 ^艮相邻小区的全局 ID, 则终端不读相 邻小区广 ί言息;
步骤 42、 终端 ^居测量指示消息, 对相邻小区进行测量;
( 1 )如果异频相邻小区或者系统间相邻小区测量指示消息中指定相邻小 区频点的 , 终端根据频点对相邻小区进行测量;
( 2 )对于测量指示消息中没有指定相邻小区频点的异频相邻小区或者系 统间相邻小区, 终端扫描所有频点的相邻小区, 进行测量。
步骤 43、 终端上报对相邻小区的测量结果给基站, 测量报告中携带所测 相邻小区的全局 ID。
图 5 为本发明实施例提供的第四种发现相邻小区方法的流程图; 参见该 图, 第四种发现相邻小区方法包括:
步骤 50、 终端默认的设置为终端在上报的测量信息中不上报相邻小区的 全局 ID, 而基站对终端的广播消息中指示需要终端上报相邻小区的全局 ID的 情况下, 则基站指示终端需要上报相邻小区的全局 ID;
步骤 51、 基站向终端发送测量相邻小区的指示消息;
( 1 )对于同频相邻小区, 基站不需要指定频点等信息;
( 2 )对于异频相邻小区, 基站可以指定终端需要测量的相邻小区频点, 也可以不指定;
( 3 )对于系统间相邻小区,基站可以指定终端需要测量的相邻小区频点, 也可以不指定;
( 4 )对于一些特殊的情况(例如隧道等) 时, 基站根据实际需要指示终 端测量某些特定的目标小区,基站指示的信息中可能包含特定的目标小区的物 理 ID。
步骤 52、 终端根据广播消息的指示, 从邻区广播信息获取相邻小区的全 局 ID;
步骤 53、 终端根据测量指示消息, 对相邻小区进行测量;
( 1 )如果同频相邻小区和测量指示消息中指定了相邻小区频点的情况, 终端根据频点对相邻小区进行测量;
( 2 )对于测量指示消息中没有指定相邻小区频点的异频邻区或者系统间 相邻小区, 终端扫描未指定频点的相邻小区, 进行测量。
步骤 54、 终端上 对相邻小区的测量信息给基站, 测量信息中携带所测 相邻小区的全局 ID。
上述对基站发现小区方法进行了详细的描述,下面结合附图详细描述自动 优化设备更新相邻小区关系的方法。
图 6为本发明实施例提供的第一种更新相邻小区关系方法的流程图;参见 该图, 该更新相邻小区关系方法由自动优化设备完成, 包括:
步骤 61、 基站对终端的测量信息进行统计;
步骤 62、 基站将测量向自动优化设备上报, 所述的测量信息包括基站统 计的终端的测量信息和基站统计的一些其他信息, 如: 切换相应的统计等; 步骤 63、 自动优化设备根据测量统计数据、 网络规划数据(planning Data ) 信息(也可能包括运营商的一些策略信息)等, 决定是否需要更新基站的相邻 小区关系列表; 如果需要更新, 则执行步骤 64;
步骤 64、 自动优化设备通知基站更新相邻小区关系列表;
步骤 65、 基站根据自动优化设备的通知对本地相邻小区关系列表进行更 新;
进一步的, 可以根据相邻小区关系列表更新的结果对相邻基站之间的 X2 链路进行更新, 包括以下步骤:
步骤 66、 自动优化设备根据更新的相邻小区关系决定是否需要对相邻基 站之间的 X2链路(基站之间的联络接口)进行更新 (包括建立、 删除或者修 改带宽), 如果需要更新, 则执行步骤 67;
步骤 67、 自动优化设备触发基站对相应的 X2链路进行更新 , 指示基站更 新相关的 X2链路;
步骤 68、 基站根据自动优化设备的决定, 更新相关 X2链路。
图 7为本发明实施例提供的第二种更新相邻小区关系方法的流程图;参见 该图, 该更新相邻小区关系方法由基站和自动优化设备共同完成, 包括:
步骤 71、 基站对终端的测量信息进行统计;
步骤 72、 基站根据测量统计数据、 planning Data信息 (也可能包括运营 商的一些策略)等, 决定是否需要更新演进基站的相邻小区关系列表(包括建 立或者删除), 如果需要更新, 则执行步骤 73; 这里的 planningData信息需要 自动优化设备下发给基站或者基站主动向自动优化设备请求获得;
步骤 73、 基站将决定信息、 测量统计信息上报给自动优化设备; 步骤 74、 自动优化设备根据基站上报的决定信息, 更新本地相邻小区关 系列表, 并触发相应的相邻小区对小区的相邻小区关系列表进行更新;
步骤 75、 基站根据自动优化设备的决定对本地相邻小区关系列表进行更 新;
进一步的, 可以根据相邻小区关系列表更新的结果对相邻基站之间的 X2 链路进行更新, 包括以下步骤:
步骤 76、 自动优化设备根据更新的相邻小区关系决定是否需要对相邻基 站之间的 X2链路进行更新(包括建立、 删除或者修改带宽); 如果需要更新, 则执行步骤 77;
步骤 77、 自动优化设备触发基站对相应的 X2链路进行更新 , 指示基站更 新相关的 X2链路;
步骤 78、 基站根据自动优化设备的决定, 更新相关的 X2链路。
图 8为本发明实施例提供的第三种更新相邻小区关系方法的流程图;参见 该图, 该更新相邻小区关系方法由基站完成, 包括:
步骤 81、 基站对终端的测量信息进行统计;
步骤 82、 基站根据测量统计数据、 planning Data信息 (也可能包括运营 商的一些策略)等, 决定是否需要优化更新基站的相邻小区关系列表(包括建 立或者删除), 如果需要更新, 则执行步骤 83; 这里的 planning Data信息需要 自动优化设备下发给基站或者基站主动向自动优化设备请求获得; 步骤 83、 基站根据所述的决定对本地相邻小区关系列表进行更新; 进一步的, 可以根据相邻小区关系列表更新的结果对相邻基站之间的 X2 链路进行更新, 包括以下步骤:
步骤 84、 基站根据更新的相邻小区关系决定是否需要对相邻基站之间的 X2链路进行更新(包括建立、 删除或者修改带宽), 如果需要更新, 则执行步 骤 85;
步骤 85、基站向自动优化设备请求配置 X2链路相应的信息, 如链路两端 基站的地址信息 , 所述的相应的信息携带相邻小区关系列表更新的信息;
步骤 86、 自动优化设备更新本地的相邻小区关系列表配置, 并根据基站 的请求, 配置相应的 X2链路;
步骤 87、 自动优化设备将 X2链路的配置信息返回给基站, 指示基站更新 相关的 X2链路;
步骤 88、 基站根据前面的 X2链路更新决定结果和自动优化设备的配置, 对相应 X2链路进行更新 , 更新相关的 X2链路。
上面详细描述了更新相邻小区方法,下面详细描述对优化相邻小区关系列 表原则, 具体是描述: 测量信息的统计、 相邻小区关系的删除、相邻小区关系 的建立、 特殊小区的处理及相邻小区关系列表作用做伴细的描述。
1、 测量信息的统计
网络侧对终端的测量信息进行统计,包括终端测量到某一小区的次数的统 计、 终端的切换情况的统计等。 对于每一个相应的小区, 都有一个网络侧对终 端的测量信息进行统计的测量统计项, 以记录该小区的测量信息的统计情况。
2、 相邻小区关系的建立
网络侧周期地检查每个小区的测量信息统计情况。 如果在设定的时间内 , 网络侧统计到某个小区被测量的次数大于设定的门限,则首先判断该小区是否 在本地的相邻小区关系列表中, 如果不在本地的相邻小区关系列表中,进一步 考虑运营商的限制条件,比如该小区是否禁止切换小区、受到地理条件限制等。 如果不受任何限制, 则将该小区建立到本地小区相邻小区关系列表中。如果已 经存在于本地小区相邻小区关系列表中 ,则不用将该小区建立到本地小区相邻 小区关系列表中。 3、 相邻小区关系的删除
网络侧对于每一个小区, 都有一个相应的测量统计项, 用来记录小区的测 量统计数据。
网络侧周期的检查每个小区的测量统计数据。如果在设定的时间内, 网络 侧统计的某个小区的某项测量统计数据大于设定的门限,则网络侧认为该小区 不适合作为源小区的相邻小区,在相邻小区关系列表中,删除该小区的相邻小 区关系。
网络侧判断是否删除相邻小区关系的测量统计项包括但不限于如下情况: ( 1 )切换失败统计
网络侧统计切换到目标小区的失败情况。在设定时间内,如果源小区切换 到目标小区的失败次数或者切换失败率达到设定的门限,则认为该小区不适合 作为源小区的相邻小区 , 从相邻小区关系列表中删除此相邻小区关系。
( 2 )切换之后的无线链路失败统计
如果终端在切换到目标小区之后,在设定的时间内, 无线链路失败次数达 到设定的门限, 则网络侧认为目标小区不适合作为源小区的相邻小区,从相邻 小区关系列表中删除该相邻小区关系。
( 3 )快速切换的统计
如果终端从小区 A切换到小区 B之后,很快又切换到小区 C,那么此切换可 以认为是一次快速顺序切换。 如果在设定的时间内, 从小区 A到小区 B再到小 区 C的快速切换的次数大于设定的门限, 则可以删除小区 A与 B的相邻小区关 系,建立小区 A与小区 C的相邻小区关系,使得终端直接的从小区 A切换到小区 B。
4、 特殊小区的处理
可能会出现一些特殊的情况,比如由于目标小区的特殊原因引起的切换失 败或者切换之后的无线链路失败, 或者由于特殊原因引起的快速切换等情况, 网络侧删除应该存在的相邻小区关系。在这种情况下, 网络侧可以通过相邻小 区关系的建立再将其加入到相邻小区关系列表中。
在某种情况下,这种相邻小区关系先删除然后又建立的情形可能会经常出 现, 比如高速公路上的隧道中的小区。 为了避免频繁的小区相邻小区关系的删 除与建立,可以对这种特殊的小区由网络做一个特定的指示, 即不允许对该小 区的相邻小区关系进行修改。 确定这种特殊小区有两种方法: 一、在网络规划 的时候就已经确定,在布置网络时就将该小区作为特殊小区来配置, 由网络指 示禁止修改该相邻小区关系的; 二、在布置好网络之后, 根据网络运营阶段的 性能数据统计来确定特殊小区: 如果一个小区在一段时间内,发生了多次同一 相邻小区关系的删除与建立,如果超出设定的门限, 则网络侧认定该小区属于 特殊小区 , 禁止对该小区的相邻小区关系进行修改。
5、 在对相邻小区关系列表进行优化时, 相邻小区关系列表的用途可以分 为两种情况:
一种情况是针对终端 ,该相邻小区关系列表是用来限制终端的测量和切换 目标的; 当终端在进行相邻小区的测量和切换时, 对于目标小区的选择, 相邻 小区关系列表主要保存的是有切换关系的相邻小区关系。 比如: 当终端切换到 某个小区之后,很快导致无线链路失败, 则说明该小区不适合作为源小区的相 邻小区,源小区的相邻小区关系列表应该将该小区作为禁止切换小区;又比如: 当终端从小区 A切换到小区 B之后, 马上又切换到小区 C, 在这种情况下, 可以 让终端从小区 A直接切换到小区 C而不必经过小区 B, 那么在小区 A的相邻小区 关系列表中应该将小区 B作为禁止切换小区。 终端在进行测量和切换时, 根据 这样的小区相邻小区关系列表, 不对这些禁止切换小区进行测量。
另一种情况是针对基站, 该相邻小区关系列表是用于建立 X2链路, 交换 无线资源管理(R M )信息的; 这个相邻小区关系列表保存的是有相互影响 因素的小区的相邻小区关系。基站 /自动优化设备可以根据相邻小区关系列表, 在有相邻小区关系的小区所属的基站之间建立 X2链路, 交换 RRM信息。 这个 相邻小区关系列表区别于针对终端的相邻小区关系列表,不管小区之间是否有 切换关系, 只要相互之间有影响, 如: 干扰等无线资源的影响, 那么他们就可 以作为相邻小区。
建立相邻小区关系的过程中,基站知道的只是目标小区的全局 ID,要建立 小区的相邻小区关系, 基站需要知道目标小区的相应属性信息。 对基站来说, 建立小区的相邻小区关系, 最主要的就是获取目标小区的信息。有以下几种获 取目标小区的信息的方法以及建立相邻小区关系的。 1、 在源基站中有目标小区的相应信息
目标小区可能是源基站的小区之一,也有可能源基站中保存有目标小区的 信息, 这种情况下, 源基站可以直接获取目标小区的信息。
2、 在源基站中没有目标小区的相应信息, 有五种方案:
( 1 ) 当存在 X2链路时:
方案一、 源基站通过 X2链路查询相邻的目标基站, 获取目标小区的信息。 具体是: 源基站根据目标小区的全局 ID中的基站标识,获取目标基站的相 应信息, 如果源基站与目标基站之间存在 X2链路, 则源基站通过 X2链路, 查 询目标基站,获取目标小区的信息,从而建立源小区与目标小区的相邻小区关 系。
( 2 ) 当不存在 X2链路时:
方案二、源基站通过移动性管理实体( Mobility Management Entity, MME ) 查询目标基站来获取目标小区的信息:
源基站根据目标小区的全局 ID中的基站标识 , 获取目标基站的相应信息 , 如果源基站与目标基站之间不存在 X2链路, 则源基站可以通过 MME, 找到目 标基站, 获取目标小区的信息, 建立源小区与目标小区的相邻小区关系。
方案三、 源基站通过自动优化设备获取目标小区信息:
源基站 ^^据目标小区的全局 ID, 通过自动优化设备获取目标小区的信息: 源基站发送目标小区查询请求 /或者通知到源基站所属的自动优化设备, 携带 目标小区的全局 ID,请求查询目标小区信息; 自动优化设备^ ^据目标小区的全 局 ID, 首先在本地查找, 如果目标小区不在本自动优化设备管理的范围内, 则 自动优化设备根据目标小区全局 ID中的目标基站标识, 查询相应地址 /名称服 务器,获取目标小区所属的自动优化设备信息,通过源自动优化设备与目标自 动优化设备之间的水平接口,获取目标小区的信息,从而建立源小区与目标小 区的相邻小区关系。
方案四、 源基站通过 MME下发的切换指示信息获取目标小区信息: 在源基站触发的终端切换过程中 , 如果源基站与目标基站之间不存在 X2 链路, 则需要通过 MME来完成切换过程。 在切换过程中, MME需要转发目标 基站的切换响应消息给终端, 源基站作为一个转发的节点, 可以利用获取的该 切换响应消息,从中获取目标小区的信息,从而建立源小区与目标小区的相邻 小区关系。
方案五、 源基站通过建立与目标基站的 X2链路获取目标小区信息: 源基站在建立源小区与目标小区的相邻小区关系时,可首先建立源基站与 目标基站之间的 X2链路, 通过建立的 X2链路, 查询目标小区的信息, 建立源 小区与目标小区的相邻小区关系。
在建立相邻小区关系后, 进一步可以建立相邻小区间的 X2链路, 完成该 X2链路的建立过程有四种方案。
方案一、 由自动优化设备决定建立 X2链路
自动优化设备决定在源基站和目标基站之间建立 X2链路, 自动优化设备 直接将源、 目标基站的地址信息、 X2链路的配置信息直接下发给 X2链路相应 的源、 目标基站, 源、 目标基站根据自动优化设备的配置信息, 建立 X2链路。
自动优化设备确定目标基站的地址及 X2链路的配置信息的过程包括: 1 ) 自动优化设备根据目标基站的标识信息(即: ID ), 首先在本地查找目标基站 的地址; 如果在本地没有目标基站的地址等信息 , 则源自动优化设备根据目标 基站的标识, 查找目标基站对应的自动优化设备, 通过自动优化设备之间的水 平接口, 获取目标基站的地址等信息。 2 ) 自动优化设备直接根据目标基站的 标识信息, 查询相应的地址 /名称服务器, 获取目标基站的地址信息。
方案二、 由基站决定建立 X2链路
( 1 ) 源基站将决定情况报告给自动优化设备, 由自动优化设备查找目标 基站的地址信息, 进行 X2链路的配置, 下发给源、 目标基站, 完成 X2链路的 建立。
自动优化设备确定目标基站的地址及 X2链路的配置信息的过程包括: 1 ) 自动优化设备根据目标基站的标识信息, 首先在本地查找目标基站的地址; 如 果在本地没有目标基站的地址等信息 ,则源自动优化设备根据目标基站的标识 信息 , 查找目标基站对应的目标自动优化设备,通过源自动优化设备和目标自 动优化设备之间的水平接口, 获取目标基站的地址等信息。 2 ) 自动优化设备 直接根据目标基站的标识信息, 查询相应的地址 /名称服务器, 获取目标基站 的地址信息。 ( 2 )源基站查找目标基站的地址信息, 并将建立 X2链路的决定信息和目 标基站的地址信息一并上 自动优化设备, 由自动优化设备完成 X2链路的配 置, 将所述的配置信息、 地址信息和决定信息下发给源、 目标基站, 完成 X2 链路的建立;
( 3 ) 源基站查找目标基站的地址信息 , 通过该地址信息找到目标基站 , 根据默认的 X2链路的配置信息, 完成 X2链路的建立, 并将所述的配置信息上 报给自动优化设备。
在上面的相邻小区关系建立的过程中 , 源基站查找目标基站的地址信息 , 可以是: 一、 源基站根据目标基站的标识信息, 通过自动优化设备查询; 二、 源基站 据目标基站的标识, 通过 MME查询; 三、 源基站 据目标基站的标 识, 通过地址 /名称服务器查询。 在根据默认配置信息建立 X2链路时, X2链路 的默认配置, 需要事先在源基站设置好。
以上对优化相邻小区关系列表的方法的实现进行了详细的描述,本发明实 施例还提供一种应用在上述方法中的基站,图 9为本发明实施例提供的该基站 的结构示意图; 参见该图, 该基站包括:
相邻小区发现单元 90, 用于发现相邻小区;
相邻小区关系建立单元 91, 用于建立相邻小区关系列表的相邻小区关系。 进一步的, 相邻小区发现单元 90, 还用于: 向终端发送测量指示消息, 然后接收终端发送的对相邻小区的测量信息的报告,所述的信息中携带所测相 邻小区的全局 ID, 即发现相邻小区。
为了更好的实现本发明的目的,参见图 10,本发明实施例提供另一种基站, 该基站包括:
相邻小区发现单元 100, 用于发现相邻小区; 具体是: 向终端发送测量指 示消息, 然后接收终端发送的对相邻小区的测量信息的报告, 所述的信息中携 带所测相邻小区的全局 ID, 即发现相邻小区。
测量信息统计单元 101,对终端 108的测量信息进行统计,具体用于对终端 108的切换失败的统计、 切换之后的无线链路失败统计和快速切换的统计。
信息上报单元 102, 用于将统计的数据向自动优化设备 107上报;
通知接收单元 103 ,用于接收自动优化设备 107通知该基站进行更新相邻小 区关系列表;
列表更新单元 104 ,根据自动优化设备 107的通知对本地相邻小区关系列表 进行更新,即对本地相邻小区关系列表进行更新,所述的更新包括建立或删除。
第一接口更新单元 105, 根据自动优化设备 107的决定, 对相应 X2链路进 行更新, 即对相应 X2链路进行更新, 所述的更新包括建立或删除。
相邻小区关系建立单元 106,用于建立相邻小区关系列表的相邻小区关系。 在建立相邻小区关系列表的相邻小区关系, 相邻小区关系建立单元 106主要用 于获取目标小区的信息。 获取目标小区的信息的途径有以下几种:
1、 在源基站中有目标小区的相应信息
可能目标小区是源基站的小区之一,也有可能源基站中保存有目标小区的 信息, 这种情况下, 源基站可以直接获取目标小区的信息。
2、 在源基站中没有目标小区的相应信息, 有五种方案建立源小区与目标 小区的相邻关系。
( 1 )存在 X2链路的情况
方案一、 源基站通过 X2链路查询相邻的基站, 获取目标小区的信息: 源基站根据目标小区的全局 ID中的基站标识 , 获取目标基站的相应信息 , 如果源基站与目标基站之间存在 X2链路, 则源基站通过 X2链路, 查询目标基 站, 获取目标小区的信息, 从而建立源小区与目标小区的相邻小区关系。
( 2 ) 不存在 X2链路的情况
方案二、 源基站通过 MME查询目标基站来获取目标小区的信息: 源基站根据目标小区的全局 ID中的基站标识, 获取目标基站的相应信息, 如果源基站与目标基站之间不存在 X2链路, 则源基站可以通过 MME, 找到目 标基站, 获取目标小区的信息, 从而建立源小区与目标小区的相邻小区关系。
方案三、 源基站通过自动优化设备获取目标小区信息:
源基站才 据目标小区的全局 ID, 通过自动优化设备获取目标小区的信息: 源基站发送目标小区查询请求 /或者通知到源基站所属的自动优化设备, 携带 目标小区的全局 ID,请求查询目标小区信息; 自动优化设备根据目标小区的全 局 ID,首先在本地小区查找,如果目标小区不在本自动优化设备管理的范围内 , 则自动优化设备才 据目标小区全局 ID中的目标基站标识, 查询相应地址 /名称 服务器, 获取目标小区所属的目标自动优化设备信息,通过源自动优化设备与 目标自动优化设备之间的水平接口,获取目标小区的信息,从而建立源小区与 目标小区的相邻小区关系。
方案四、 源基站通过 MME下发的切换指示信息获取目标小区信息: 在源基站触发的终端切换过程中 , 如果源基站与目标基站之间不存在 X2 链路, 则需要通过 MME来完成切换过程。 在切换过程中, MME需要转发目标 基站的切换响应消息给终端, 源基站作为一个转发的节点, 可以利用获取的该 切换响应消息,从中获取目标小区的信息,从而建立源小区与目标小区的相邻 小区关系。
方案五、 源基站通过建立与目标基站的 X2链路获取目标小区信息: 源基站在建立源小区与目标小区的相邻小区关系时,首先建立源基站与目 标基站之间的 X2链路, 通过建立的 X2链路, 查询目标小区的信息, 建立源小 区与目标小区的相邻小区关系。
本发明实施例还提供一种应用在上述方法中的自动优化设备,图 11为本发 明实施例提供的该自动优化设备的结构示意图; 参见该图,该自动优化设备包 括: 小区更新单元 115, 用于更新相邻小区的关系。 该小区更新单元 115, 还包 括:
统计数据接收单元 110, 接收基站 114上报的统计数据;
决定通知单元 111, 根据所述的统计数据、 planning Data信息, 决定是否需 要更新基站 114的相邻小区关系列表, 通知基站 114更新相邻小区关系列表; 或者, 还包括:
第二接口更新单元 112, 根据更新的相邻小区关系, 决定是否需要对相邻 基站 114之间的 X2链路进行更新;
更新触发单元 113, 触发基站 114对相应的 X2链路进行更新。
本发明实施例还提供第二种自动优化设备, 参见图 12,该自动优化设备包 括小区更新单元 125,用于更新相邻小区的关系。该小区更新单元 125,还包括: 信息接收单元 120, 用于接收基站 124上报的决定信息、 统计数据; 第二更新触发单元 121 ,根据基站 124的决定,更新本地相邻小区关系列表, 并触发相应的相邻小区, 对小区的相邻小区关系列表进行更新; 或者, 还包括:
第三接口更新单元 122, 根据更新的相邻小区关系, 决定是否需要对相邻 基站 124之间的 X2链路进行更新;
更新消息发送单元 123 , 向基站 124发送 X2链路更新的决定。
本发明实施例还提供第三种自动优化设备, 参见图 13 ,该自动优化设备包 括小区更新单元 134,用于更新相邻小区的关系。该小区更新单元 134,还包括: 配置信息接收单元 130, 接收基站 133发送的请求配置 X2链路相应的信息, 所述的信息携带相邻小区关系列表更新的信息;
配置更新单元 131 , 更新本地的相邻小区关系列表的配置, 具体是: 根据 基站 133的请求, 配置相应的 X2链路;
配置信息返回单元 132, 返回 X2链路的配置信息给基站 133。
本发明实施例还提供一种应用在上述方法中的终端, 图 14为本发明实施 例提供的该终端的结构示意图; 参见该图, 该终端 144包括:
测量指示信息接收单元 140, 接收基站 143发出的测量指示信息;
测量单元 141, 根据所述的测量指示信息对相邻小区进行测量; 还可以根 据指示信息侦听相邻小区的广播信息, 获取相邻小区的全局 ID;
测量信息上报单元 142, 向基站 143上报所测得相邻小区的测量信息, 如果 所述的测量单元 141获取了相邻小区的全局 ID; 则所述的上报信息包括相邻小 区的全局 ID。
本发明实施例还提供的第一种优化相邻小区关系列表的系统, 图 15为本 发明实施例提供的优化相邻小区关系列表的系统的结构示意图。参见该图,该 系统包括终端 150、 基站 151和自动优化设备 152。 其中:
基站 151, 用于发现相邻小区; 具体是: 基站 151向终端 150发送测量指示 消息; 终端 150接收所述的指示信息, 据指示消息, 对相邻小区进行测量, 并将对相邻小区测量信息上报给所述的基站 151。 基站 151对终端 150上报的测 量信息进行统计, 将所述的统计数据向自动优化设备上报 152;
自动优化设备 152, 用于根据终端发现的相邻小区的信息更新相邻小区; 具体根据所述的统计数据、 planning Data信息, 决定是否更新基站 151的相邻 小区关系列表, 如果更新, 则通知基站 151进行更新相邻小区关系列表; 然后基站 151根据所述自动优化设备 152的更新 ,建立相邻小区关系列表的 相邻小区关系。
所述的自动优化设备 152再根据更新的相邻小区关系, 决定是否需要对相 邻基站 151之间的 X2链路进行更新; 如果更新, 则触发基站 151对相应的 X2链 路进行更新;
所述的基站 151, 根据自动优化设备 152的决定, 对相应 X2链路进行更 新。
本发明实施例提供第二种优化相邻小区关系列表的系统 ,该系统的结构示 意图参见图 15, 该系统包括:
基站 151, 指示终端 150对相邻小区进行测量, 对终端 150的测量信息进行 统计, 根据统计数据、 planning Data的信息, 决定是否更新基站 151的相邻小 区关系列表; 如果更新, 则根据对本地相邻小区关系列表进行更新, 将决定信 息、 统计数据向自动优化设备上报 152;
自动优化设备 152, 根据基站 151的决定, 更新本地相邻小区关系列表, 并 触发相应的相邻小区对小区相邻小区关系进行更新, 根据更新的相邻小区关 系, 决定是否需要对相邻基站 151之间的 X2链路进行更新, 向基站 151发送 X2 链路所述的更新决定信息;
基站 151, 根据自动优化设备 152的决定, 对相应 X2链路进行更新。
本发明实施例提供第二种优化相邻小区关系列表的系统 ,该系统的结构示 意图参见图 15, 该系统包括:
基站 151, 指示终端 150对相邻小区进行测量, 对终端 150的测量信息进行 统计, 根据统计数据、 planning Data的信息, 决定是否更新基站 151的相邻小 区关系列表, 如果更新, 基站 151根据所述的决定对本地相邻小区关系列表进 行更新 , 基站 151根据更新的相邻小区关系决定是否需要对相邻基站之间的 X2 链路进行更新, 如果更新, 基站 151向自动优化设备 152请求配置 X2链路相应 的信息, 携带相邻小区关系列表更新的信息;
自动优化设备 152, 更新本地的相邻小区关系列表配置,根据基站 151的请 求, 配置相应的 X2链路, 返回 X2链路的配置信息给基站 151;
基站 151,根据所述的对 X2链路更新的决定和配置,对相应 X2链路进行更 新。
上述所有的实施例中的更新包括更新 , 即更新所述的相邻小区关系列表 或 X2链路。
上述所有的实施例中的自动优化设备可以是 EMS ,也可以是单独的节点。 以上对本发明实施例所提供的一种优化相邻小区关系列表的方法、系统及 相关设备进行了详细介绍,对于本领域的一般技术人员,依据本发明实施例的 思想, 在具体实施方式及应用范围上均会有改变之处, 综上所述, 本说明书实 施例的内容不应理解为对本发明的限制。

Claims

权 利 要 求
1、 一种相邻小区关系优化方法, 其特征在于, 包括:
基站向终端发送用于指示测量邻区的消息;
所述基站接收 UE发送的测量信息 , 该测量信息包含邻区的全局标识; 根据所述 UE的测量信息更新相邻小区关系列表。
2、 如权利要求 1所述的方法, 其特征在于, 所述还包括: 基站对所述终 端的测量信息进行统计;
所述 据所述 UE的测量信息更新邻区关系列表具体为:
所述基站才 据统计数据和 /或网络规划数据 planning Data更新相邻小区关 系列表; 或者,
所述基站将统计数据上报给自动优化设备,接收自动优化设备根据所述统 计数据和 /或 planning Data确定需要更新基站的相邻小区关系列表的通知消息, 并根据所述通知消息更新相邻小区关系列表; 或者,
如果所述基站 据统计数据和 /或 planning Data确定更新相邻小区关系列 表, 将确定信息、 统计数据向自动优化设备上报, 接收所述自动优化设备发送 的更新相邻小区关系列表的通知消息, 并更新相邻小区关系列表。
3、 如权利要求 2所述的方法, 其特征在于, 所述更新相邻小区关系列表 进一步包括:
如果在设定的时间内, 终端测量到所述邻区的次数大于设定的门限, 并且 该邻区不在相邻小区关系列表中,获取该邻区的相关信息,建立相邻小区关系; 或者,
如果在设定的时间内 ,网络侧对所述邻区的预置测量统计数据大于设定的 门限, 在本地相邻小区关系列表中删除该相邻小区关系。
4、 如权利要求 3所述的方法, 其特征在于, 所述网络侧对所述邻区的预置 测量统计数据具体为: 所述终端切换到所述邻区的失败次数,或者切换到所述 邻区之后的无线链路失败次数, 或者快速切换次数。
5、 如权利要求 3所述的方法, 其特征在于, 所述获取该相邻小区的信息具 体包括:
所述基站获取所述相邻小区的全局标识,并根据方法一或者方法二或者方 法三获取相邻小区的信息;
所述方法一具体为:如果所述基站与所述相邻小区所属的目标基站之间存 在 X2链接, 所述基站 ^居所述相邻小区的全局标识中的基站标识, 通过 X2链 路从所述目标基站获取相邻小区的信息;
所述方法二具体为:如果所述基站与所述相邻小区所属的目标基站之间不 存在 X2链接, 所述基站根据所述相邻小区的全局标识中的基站标识, 通过移 动管理实体 MME获取相邻小区的信息;
所述方法三具体为:所述基站向所述基站所属的自动优化设备发送相邻小 区查询消息,该查询消息携带所述相邻小区的全局标识, 所述自动优化设备根 据相邻小区的全局 ID获取相邻小区的信息并发送给所述基站。
6、 如权利要求 1-5中任意一项权利要求所述的方法, 其特征在于, 所述用 于指示测量相邻小区的消息包含以下参数的任意组合: 异频相邻小区的频点、 相邻小区的物理标识。
7、 如权利要求 1-6中任意一项权利要求所述的方法, 其特征在于, 所述的 相邻小区关系列表具体保存:与终端所在小区具有切换关系的小区的相邻小区 关系 , 或者保存对终端所在小区有无线资源影响的小区的相邻小区关系。
8、 一种 X2链路建立方法, 其特征在于, 包括:
基站向终端发送用于指示测量邻区的消息;
所述基站接收 UE发送的测量信息 , 该测量信息包含邻区的全局标识; 根据所述全局标识更新所述基站与所述邻区所属目标基站之间的 X2链 路。
9、 如权利要求 8所述的方法, 其特征在于, 根据所述全局标识更新所述基 站与所述目标基站之间的 X2链路具体包括:
基站根据所述邻区的全局标识确定需要更新与所述目标基站之间的 X2链 路, 获取用于更新所述 X2链路的信息, 并根据该信息更新相应 X2链路; 或者, 自动优化设备 据所述邻区的全局标识确定更新所述基站和所述目标基 站之间的 X2链路, 向所述基站发送用于指示更新 X2链路的消息, 该消息包含 用于更新所述 X2链路的信息。
10、 如权利要求 8或 9所述的方法, 其特征在于, 所述根据所述全局标识更 新所述基站与所述目标基站之间的 X2链路具体为: 建立或删除所述基站与所 述目标基站间的 X2链路, 或者修改所述基站与所述目标基站之间的 X2链路的 带宽。
11、 如权利要求 10所述的方法, 其特征在于, 如果建立所述基站与所述目 标基站间的 X2链路, 所述用于更新所述 X2链路的信息包含 X2链路配置消息以 及所述目标基站的地址。
12、 如权利要求 11所述的方法, 其特征在于, 如果所述基站从所述自动优 化设备获取所述目标基站的地址, 所述方法还包括:
所述自动优化设备从本地保存的地址信息获取目标基站的地址; 或者 , 所述自动优化设备根据所述目标基站的标识获取所述目标基站所属的自 动优化设备, 并从所述目标基站所属的自动优化设备获取目标基站的地址; 或 者,
所述自动优化设备根据所述目标基站的标识信息从地址服务器或名称服 务器获取目标基站的地址。
13、 如权利要求 11所述的方法, 其特征在于, 该方法还包括: 所述基站 根据所述目标基站的标识从 MME, 或者地址服务器, 或者名称服务器获取该 目标基站的地址。
14、 一种基站, 其特征在于, 包括:
相邻小区发现单元, 用于向终端发送测量指示消息,接收终端发送的相邻 小区的测量信息, 所述的测量信息包含所述相邻小区的全局 ID;
相邻小区关系建立单元 ,用于根据所述测量信息建立相邻小区关系列表的 相邻小区关系。
15、 如权利要求 14所述的基站, 其特征在于, 所述的基站还包括: 测量信息统计单元, 对终端的测量信息进行统计;
信息上报单元, 将统计的数据向自动优化设备上报;
通知接收单元, 用于接收自动优化设备进行更新相邻小区关系列表的通 知;
列表更新单元,根据自动优化设备的通知对本地相邻小区关系列表进行更 新; 第一接口更新单元, 根据自动优化设备更新 X2链路的决定, 对相应 X2链 路进行更新。
16、 一种自动优化设备, 其特征在于, 包括:
统计数据接收单元, 用于接收基站上4艮的统计数据;
决定通知单元, 用于如果根据所述的统计数据、 planning Data信息, 决定 需要更新所述基站的相邻小区关系列表, 通知基站更新相邻小区关系列表。
17、 如权利要求 16所述的自动优化设备, 其特征在于, 还包括:
用于根据更新的相邻小区关系, 决定是否对相邻基站之间的 X2链路进行 更新的第二接口更新单元, 以及用于触发基站对相应的 X2链路进行更新的第 一更新触发单元; 或者,
用于根据更新的相邻小区关系 , 决定是否需要对相邻基站之间的 X2链路 进行更新的第三接口更新单元, 和用于向基站发送 X2链路更新的决定的更新 消息发送单元。
18、 如权利要求 16所述的自动优化设备, 其特征在于, 所述自动优化设备 还包括:
配置信息接收单元, 接收基站发送的请求配置 X2链路的信息, 所述的信 息携带相邻小区关系列表更新的信息;
配置更新单元, 更新本地的相邻小区关系列表的配置, 根据基站的请求, 配置相应的 X2链路;
配置信息返回单元, 将 X2链路的配置信息返回给基站。
19、 一种优化相邻小区关系列表的系统, 其特征在于, 包括:
基站, 用于指示终端对相邻小区进行测量,接收终端发送的包含邻区的全 局标识的测量信息,还用于接收自动优化设备发送的根据所述邻区的全局标识 确定更新相邻小区关系的通知消息,还用于才 据该通知消息更新相邻小区关系 列表。
20、 如权利要求 19所述的系统, 其特征在于, 还包括:
基站,指示终端对相邻小区进行测量,并对终端上报的测量信息进行统计, 将所述的统计数据向自动优化设备上报;
自动优化设备, 据统计数据、 planning Data信息, 决定是否更新基站的 相邻小区关系列表的相邻小区关系,如果更新,通知基站更新相邻小区关系列 表;
所述的基站, 根据自动优化设备的通知对本地相邻小区关系列表进行更 新;
所述的自动优化设备,根据更新的相邻小区关系, 决定是否需要对相邻基 站之间的 X2链路进行更新; 如果更新, 则触发基站对相应的 X2链路进行更新; 所述的基站, 根据自动优化设备的决定, 对相应 X2链路进行更新。
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