WO2016141651A1 - 一种移动通信系统中盲切换或盲重定向的方法及装置 - Google Patents
一种移动通信系统中盲切换或盲重定向的方法及装置 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000010295 mobile communication Methods 0.000 title claims abstract description 16
- 238000005259 measurement Methods 0.000 claims abstract description 66
- 238000001514 detection method Methods 0.000 claims abstract description 8
- 230000006854 communication Effects 0.000 description 9
- 238000004891 communication Methods 0.000 description 8
- 230000011664 signaling Effects 0.000 description 4
- 201000004569 Blindness Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
- H04W36/322—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data by location data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/34—Reselection control
- H04W36/38—Reselection control by fixed network equipment
Definitions
- This document relates to the field of wireless communications, and in particular, to a method and apparatus for blind handover and blind redirection in a mobile communication system.
- the wireless communication network In the wireless communication network, most of the deployment methods use a cellular network topology.
- the characteristics of the network structure are that there are many neighboring cells around a cell covered by one base station, and in these adjacent cells, Usually only one or several cells are suitable as the target cell for handover or redirection of the mobile terminal, and since the handover or redirection is dominated by the network side base station, the base station needs to be correctly implemented in these neighboring cells. s Choice.
- the technical solution of the cell handover in the related art is that when the mobile terminal sends a handover request to the base station, the base station requests the mobile terminal to perform signal quality measurement on several neighboring cells around the mobile terminal, and then reports the measurement result to the base station, and the base station according to the The information reported by the mobile terminal, the network load, and the like selects an appropriate cell to initiate a handover or redirection command to the mobile terminal.
- multiple signaling interactions such as measurement control, measurement report, handover command, and handover confirmation are performed between the mobile terminal and the base station.
- the mobile terminal needs to obtain a certain idle time in the communication process, and the receiver switches to the frequency of the target cell for measurement, and in the idle time at which the measurement is performed, The receiver stops receiving the signal of the cell.
- the compressed mode is usually used to obtain an idle time. In the compressed mode, the base station compresses the data to be transmitted in time, and transmits the originally transmitted data in a shorter time, thereby affecting the communication quality.
- the above switching may encounter some problems in the actual use process, for example, when the mobile terminal suddenly accelerates after entering the switching area, since the process of measuring control and measurement report needs to be introduced at this time, the switching speed is delayed, resulting in switching or heavy The orientation is not timely and affects the user experience. In addition, this situation additionally increases the signaling load of the base station, so that the performance of the base station is degraded.
- blind handover or blind redirection is also widely used in wireless communication networks.
- the blind handover or the blind redirection means that the base station does not require the mobile terminal to measure and report the neighboring cell, but directly commands the mobile terminal to switch or redirect to the designated target cell.
- the target cell selected by the base station may not be suitable for the mobile terminal to perform handover, which may result in the blindness of the base station when selecting the target cell, which may easily lead to blind handover or blind redirection. Failure, the mobile terminal will appear dropped calls, disconnected the network, affecting the user experience. If blind or blind redirection is unsuccessful, it will also consume network resources, which is a disadvantage inherent in blind handover or blind redirection.
- the embodiment of the invention provides a method and a device for blind handover and blind redirection in a mobile communication system, which can solve the problem that the communication quality of the mobile terminal is poor due to handover and redirection, and the network resource consumption is seriously caused by blind handover or blind redirection.
- An embodiment of the present invention provides a method for blind handover or blind redirection in a mobile communication system, including:
- the current cell on the network side performs real-time measurement on the signal strength of all neighboring cells in the blind handover or blind redirection area at the edge of the cell;
- the current cell on the network side determines whether the mobile terminal enters the blind handover or blind redirection area by detecting the location of the mobile terminal in the local cell.
- the network side current cell includes:
- the current cell on the network side sorts all neighboring cells in the measurement result according to the measured signal strength of all neighboring cells in the blind handover or blind redirection area;
- the neighboring cells in the measurement result are updated by periodically measuring the signal strengths of all the neighboring cells.
- the step of determining, by the network side current cell, the location of the mobile terminal in the current cell, whether the mobile terminal enters the blind handover or the blind redirection area includes:
- the step of performing handover of the mobile terminal according to the measured signal strength of all neighboring cells includes:
- the current cell on the network side uses the first neighboring cell with the highest signal strength in the measurement result as the first target cell, and sends a blind handover or blind redirection command including the first target cell information to the mobile terminal, so as to The mobile terminal performs blind handover or blind redirection to the first target cell according to the first target cell information in the blind handover or blind redirection command.
- the step of performing the handover of the mobile terminal according to the measured signal strength of all neighboring cells further includes:
- the second neighboring cell with the highest signal strength in the measurement result is used as the second target cell, and the blind handover or blind redirection command including the second target cell information is included. Sending to the mobile terminal, so that the mobile terminal blindly switches or blindly redirects to the second target cell according to the second target cell information in the blind handover or blind redirection command.
- the embodiment of the invention further provides a device for blind handover or blind redirection in a mobile communication system, including:
- the measuring module is configured to perform real-time measurement on the signal strength of all neighboring cells in the blind handover or blind redirection area at the current cell edge of the network side;
- a detecting module configured to determine, by detecting a location of the mobile terminal in the current cell on the network side, whether the mobile terminal enters the blind handover or blind redirection area
- a switching module configured to: when the detecting module determines that the mobile terminal has entered the blind handover or blind redirection area according to the detection result, according to signal strengths of all neighboring cells measured by the measurement module The handover of the mobile terminal.
- the device further includes:
- a sorting module configured to be a blind switching or blind redirecting area measured according to the measuring module
- the signal strength of all neighboring cells in the sequence sorts all neighboring cells in the measurement result
- an update module configured to update neighboring cell rankings in the measurement result by periodically measuring signal strengths of all neighboring cells.
- the detecting module includes:
- Obtaining a submodule configured to acquire a current location of the mobile terminal after obtaining a blind handover or blind redirect request from the mobile terminal;
- the determining sub-module is configured to determine, according to the preset cell coverage information, whether the current location of the mobile terminal acquired by the acquiring sub-module is covered by the neighboring cell, and if it is covered by the neighboring cell, determining that the mobile terminal is in a blind handover Or the blind redirecting area, if not covered by the neighboring cell, determining that the mobile terminal is not in a blind handover or blind redirecting area.
- the switching module includes:
- a first switching submodule configured to use a first neighboring cell with the highest signal strength in the measurement result as a first target cell, and send a blind handover or blind redirection command including the first target cell information to the mobile terminal.
- the switching module further includes:
- a second switching submodule configured to: if the mobile terminal fails to handoff, use a second neighboring cell with the highest signal strength in the measurement result as the second target cell, and include the second target cell information
- the blind or blind redirect command is sent to the mobile terminal.
- the embodiment of the invention further provides a computer readable storage medium storing program instructions, which can be implemented when the program instructions are executed.
- the embodiment of the present invention provides a method for determining, by the network side, the signal quality of its neighboring cell, and then determining when to issue a blind handover or blind redirection command to the mobile terminal according to the location of the mobile terminal, so that the mobile terminal is When switching between cells, the process of measuring and reporting by the mobile terminal is omitted, the signaling load of the base station is reduced, and the communication quality at the time of handover is improved.
- the mobile terminal can also select the most suitable target cell to initiate the handover, which effectively reduces the probability of the dropped call, repeated blind handover or blind redirection consuming network resources caused by the unsuitable target cell of the blind handover or the blind redirection. .
- FIG. 1 is a flowchart of a method for blind handover and blind redirection in a mobile communication system according to Embodiment 1 of the present invention
- FIG. 2 is a schematic structural diagram of an apparatus for blind handover and blind redirection in a mobile communication system according to Embodiment 2 of the present invention
- FIG. 3 is a flowchart of a new module of a base station for blind handover and blind redirection in a mobile communication system according to Embodiment 3 of the present invention
- FIG. 4 is a flowchart of execution of blind handover or blind redirection of blind handover and blind redirection in a mobile communication system according to Embodiment 4 of the present invention.
- FIG. 1 is a flowchart of a method for blind handover and blind redirection in a mobile communication system according to an embodiment of the present invention. As shown in FIG. 1 , the steps are as follows:
- Step S101 The current cell on the network side performs real-time measurement on the signal strength of all neighboring cells in the blind handover or blind redirection area at the edge of the cell;
- the network side current cell includes:
- the current cell on the network side sorts all neighboring cells in the measurement result according to the measured signal strength of all neighboring cells in the blind handover or blind redirection area;
- the neighboring cells in the measurement result are updated by periodically measuring the signal strengths of all the neighboring cells.
- Step S102 The current cell on the network side detects whether the mobile terminal enters the blind handover or blind redirection area by detecting the location of the mobile terminal in the local cell.
- step S102 when the current cell on the network side acquires the blind cut from the mobile terminal After the change or blind redirect request, the current location of the mobile terminal is obtained; determining, according to the preset cell coverage information, whether the acquired current location of the mobile terminal is covered by the neighboring cell, and if it is covered by the neighboring cell, determining the location The mobile terminal is in a blind handover or blind redirection area. If it is not covered by the neighboring cell, it is determined that the mobile terminal is not in a blind handover or blind redirection area.
- Step S103 When the current cell on the network side determines that the mobile terminal has entered the blind handover or blind redirection area according to the detection result, perform handover of the mobile terminal according to the measured signal strength of all neighboring cells. Switch.
- step S103 the step of performing handover of the mobile terminal according to the measured signal strengths of all neighboring cells includes:
- the current cell on the network side uses the first neighboring cell with the highest signal strength in the measurement result as the first target cell, and sends a blind handover or blind redirection command including the first target cell information to the mobile terminal, so as to The mobile terminal performs blind handover or blind redirection to the first target cell according to the first target cell information in the blind handover or blind redirection command.
- the step of performing the handover of the mobile terminal according to the measured signal strength of all neighboring cells further includes:
- the second neighboring cell with the highest signal strength in the measurement result is used as the second target cell, and the blind handover or blind redirection command including the second target cell information is included. Sending to the mobile terminal, so that the mobile terminal blindly switches or blindly redirects to the second target cell according to the second target cell information in the blind handover or blind redirection command.
- the network side does not select the same cell as the target cell for the mobile terminal.
- the network side may be marked, and a second neighboring cell with the highest signal strength is selected as the new target cell from the measurement results.
- FIG. 2 is a schematic structural diagram of a device for blind handover and blind redirection in a mobile communication system according to an embodiment of the present invention. As shown in FIG. 2, the method includes: a measurement module 21, a detection module 22, and a switching module 23, where:
- the measuring module 21 is configured to perform real-time measurement on signal strength of all neighboring cells in a blind handover or blind redirection area at a current cell edge of the network side;
- the detecting module 22 is configured to determine whether the mobile terminal enters the blind handover or blind redirection area by detecting a location of the mobile terminal in the current cell on the network side;
- the detecting module 22 includes an obtaining submodule 221 and a determining submodule 222, where the obtaining submodule 221 of the detecting module 22 is configured to: after obtaining a blind handover or blind redirect request from the mobile terminal, Acquiring the current location of the mobile terminal; the determining sub-module 222 of the detecting module 22 is configured to determine, according to the preset cell coverage information, whether the current location of the mobile terminal acquired by the acquiring sub-module 221 is covered by a neighboring cell, If it is covered by the neighboring cell, it is determined that the mobile terminal is in a blind handover or blind redirection area, and if not covered by the neighboring cell, it is determined that the mobile terminal is not in a blind handover or blind redirection area;
- the switching module 23 is configured to: when the detecting module 22 determines that the mobile terminal has entered the blind handover or blind redirection area according to the detection result, according to all neighboring cells measured by the measurement module 21 The signal strength is used for handoff of the mobile terminal.
- the switching module 23 includes a first switching submodule 231, where the first switching submodule 231 of the switching module 23 is configured to use the first neighboring cell with the highest signal strength in the measurement result as the first a target cell, and the blind handover or blind redirection command including the first target cell information is sent to the mobile terminal; optionally, the switching module 23 further includes a second handover submodule 232, and the handover module 23
- the second switching sub-module 232 is configured to: if the mobile terminal fails to handover, the second neighboring cell with the highest signal strength in the measurement result is used as the second target cell, and the second target cell is included A blind or blind redirect command for information is sent to the mobile terminal.
- the apparatus further includes a sorting module 24 and an update module 25, wherein:
- the sorting module 24 is configured to sort all neighboring cells in the measurement result according to signal strengths of all neighboring cells in the blind handover or blind redirection area measured by the measurement module 21;
- the updating module 25 is configured to update the neighboring cells in the measurement result by periodically measuring the signal strengths of all the neighboring cells.
- FIG. 3 is a flowchart of a new module of a base station for blind handover and blind redirection in a mobile communication system according to an embodiment of the present invention.
- a cell signal measurement module 31 is added to a base station side.
- the cell signal measurement module 31 periodically measures the signal quality of the neighboring cells (inter-frequency, same-frequency, and different modes) under the current base station, and transmits the measurement result to the measurement result storage module 32 for storage or update;
- the measurement result storage module 32 is configured to store measurement results of neighboring cells measured by the base station (including the same frequency, different frequency, and different standards), and sort the measurement results according to certain rules, usually according to the signal quality from good to bad;
- mobile terminal location The query module 33 periodically acquires the location of the mobile terminal that is currently in the base station network.
- the mobile terminal location query module 33 queries the mobile terminal to enter the area of blind handover or blind redirection, it sends a message to the cell signal measurement module 31 to inform the current
- the mobile terminal has entered the area of blind handover or blind redirection, and satisfies the blind handover or blind redirection condition;
- the cell signal measurement module 31 queries the measurement result storage module 32, and then selects a signal strength from the measurement result storage module 32. Covering the cell of the mobile terminal and initiating blindness containing relevant information of the cell
- the switching or blind redirection command is sent to the mobile terminal to command the mobile terminal to switch, thereby improving the success rate of the blind handover or the blind redirection, and improving the user experience.
- the cell signal measurement module 31 the signal quality of each cell changes in real time, but the fluctuation under normal conditions is generally not too large. Therefore, the cell signal measurement module 31 periodically monitors the signal quality of the neighboring cells. And the measurement result storage module 32 is notified to update its cell record.
- the network side acquires a cell blind handover or blind redirection requirement of the mobile terminal; the network side determines, according to the pre-configured cell coverage information, whether the target cell can cover the current location of the mobile terminal, and if yes, the mobile terminal Blind or blind redirection To the target cell.
- the steps are as follows:
- Step S401 start;
- Step S402 Whether there is a cell covered by the current cell and can cover the mobile terminal, that is, whether the current cell can be covered by other cells, and if there is a cell covered by the current cell and can cover the mobile terminal, the process proceeds to step S403. Otherwise proceeding to step S404;
- Step S403 Select a target cell with the best signal according to the cell information stored by the base station, that is, if there is other cell coverage, select a cell with the best signal from the measurement result storage module 32, and if the mobile terminal blindly switches or If the blind redirection is unsuccessful, the second good cell is selected from the measurement result storage module 32 to issue a blind handover or a blind redirection command to the mobile terminal until the terminal handover succeeds, and the process proceeds to step S406;
- Step S404 performing blind switching or blind redirection according to a conventional method
- Step S405 successfully found and access, proceeds to step S408;
- Step S406 command the terminal to perform blind handover or blind redirection to the selected target cell, that is, issue a blind handover or blind redirection command to the mobile terminal;
- Step S407 determining whether the blind handover or blind redirection is successful, if successful, proceeding to step S408, otherwise returning to step S403;
- Step S408 End.
- the base station that issues the blind handover or the blind redirection command has very accurate measurement results for the neighboring cell, as long as the mobile terminal enters an area that satisfies the blind handover or the blind redirection, then The probability of successful handover is greatly increased, thereby increasing the success rate of blind handover or blind redirection. Because the success rate of blind handover or blind redirection is improved, the probability of occurrence of events such as dropped calls and network disconnections is reduced, and the user experience is improved.
- the signal quality of the neighboring cell is measured by the base station, and then the base station sends a handover command to the mobile terminal, so that the one-time handover success rate is greatly improved. If the handover or redirection fails, the mobile terminal will continue to select other target cells to repeatedly switch or redirect, which will consume a lot of network resources.
- Adopt After the solution proposed by the embodiment of the present invention increases the probability of selecting the appropriate target cell for the first time, thereby saving network resources.
- the embodiment of the present invention provides a method for determining, by the network side, the signal quality of its neighboring cell, and then determining when to issue a blind handover or blind redirection command to the mobile terminal according to the location of the mobile terminal, so that the mobile terminal is When switching between cells, the process of measuring and reporting by the mobile terminal is omitted, the signaling load of the base station is reduced, and the communication quality at the time of handover is improved.
- the mobile terminal can also select the most suitable target cell to initiate the handover, which effectively reduces the probability of the dropped call, repeated blind handover or blind redirection consuming network resources caused by the unsuitable target cell of the blind handover or the blind redirection. .
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Abstract
一种移动通信系统中盲切换和盲重定向的方法及装置，所述方法包括：网络侧当前小区对处于本小区边缘的盲切换或盲重定向区域中所有相邻小区的信号强度进行实时测量；网络侧当前小区通过对本小区中的移动终端的位置进行检测，确定所述移动终端是否进入所述盲切换或盲重定向区域；当网络侧当前小区根据所述检测结果确定所述移动终端已经进入所述盲切换或盲重定向区域时，根据所测量的所有相邻小区的信号强度进行所述移动终端的越区切换。
Description
本文涉及无线通信领域，尤其涉及一种移动通信系统中盲切换和盲重定向的方法及装置。
在无线通信网络中，布网方式大多数采用的是蜂窝网拓扑结构，这种布网结构的特点是一个基站覆盖的小区周围存在很多相邻的其他小区，而在这些相邻的小区中，通常只有其中的一个或几个小区适合作为移动终端切换或重定向的目标小区，又因为切换或重定向都是以网络侧基站主导进行的，这就需要基站在这些相邻小区中做出正确的选择。
相关技术中小区切换的技术方案为，当移动终端向基站发出切换请求时，基站会要求移动终端对其周围的几个相邻的小区进行信号质量测量，然后把测量结果上报给基站，基站根据移动终端上报的结果、网络负载等信息选择合适的小区向移动终端发起切换或重定向命令。在一次正常的切换中，移动终端和基站之间要进行测量控制、测量报告、切换命令、切换确认等多条信令交互。若移动终端的相邻小区使用的频率和当前小区的频率不同时，移动终端需要在通信过程中得到一定的空闲时间，把接收机切换到目标小区的频率进行测量，在进行测量的空闲时刻，接收机停止接收本小区信号。通常使用压缩模式来获得空闲时刻，在压缩模式下，基站对要传送的数据进行时间上的压缩，把原来正常传输的数据在更短的时间内发送出去，影响通信质量。而上述切换在实际使用过程中会遇到一些问题，如当移动终端在进入切换区域后突然加速，由于此时需要引入测量控制和测量报告等流程，这样就延迟了切换速度，导致切换或重定向不及时而影响用户体验，此外这种情况还额外增加了基站的信令负载，使得基站性能下降。
基于上述因素的影响，盲切换或盲重定向也被广泛应用在无线通信网络中。盲切换或盲重定向是指基站不要求移动终端测量相邻小区并上报，而是直接命令移动终端切换或重定向到指定的目标小区。在无线通信领域中进行
盲切换或盲重定向时，基站发起的盲切换或盲重定向有可能选择的目标小区并不适合移动终端做切换，从而导致基站在选择目标小区时比较盲目，容易导致盲切换或盲重定向失败，移动终端会出现掉话、断网，影响用户体验。如果盲切换或盲重定向多次不成功，还会消耗网络资源，这是盲切换或盲重定向所固有的缺点。
发明内容
本发明实施例提供一种移动通信系统中盲切换和盲重定向的方法及装置，能够解决切换和重定向导致移动终端通信质量差，以及盲切换或盲重定向导致网络资源耗损严重的问题。
本发明实施例提供了一种移动通信系统中盲切换或盲重定向的方法，包括：
网络侧当前小区对处于本小区边缘的盲切换或盲重定向区域中所有相邻小区的信号强度进行实时测量；
网络侧当前小区通过对本小区中的移动终端的位置进行检测，确定所述移动终端是否进入所述盲切换或盲重定向区域；
当网络侧当前小区根据所述检测结果确定所述移动终端已经进入所述盲切换或盲重定向区域时，根据所测量的所有相邻小区的信号强度进行所述移动终端的越区切换。
可选地，所述网络侧当前小区对处于本小区边缘的盲切换或盲重定向区域中所有相邻小区的信号强度进行实时测量的步骤之后还包括：
网络侧当前小区根据测量得到的盲切换或盲重定向区域中所有相邻小区的信号强度对测量结果中的所有相邻小区进行排序；
通过对所述所有相邻小区的信号强度进行周期性测量，对测量结果中的相邻小区排序进行更新。
可选地，所述网络侧当前小区通过对本小区中的移动终端的位置进行检测，确定所述移动终端是否进入所述盲切换或盲重定向区域的步骤包括：
当网络侧当前小区获取到来自移动终端的盲切换或盲重定向请求后，获
取所述移动终端的当前位置；
根据预置的小区覆盖信息判断所获取的移动终端的当前位置是否被相邻小区覆盖，若被相邻小区覆盖，则确定所述移动终端处于盲切换或盲重定向区域，若不被相邻小区覆盖，则确定所述移动终端未处于盲切换或盲重定向区域。
可选地，所述根据所测量的所有相邻小区的信号强度进行所述移动终端的越区切换的步骤包括：
网络侧当前小区将所述测量结果中信号强度最大的第一相邻小区作为第一目标小区，并将包含所述第一目标小区信息的盲切换或盲重定向命令发送给移动终端，以便所述移动终端根据所述盲切换或盲重定向命令中的第一目标小区信息盲切换或盲重定向至第一目标小区。
可选地，所述根据所测量的所有相邻小区的信号强度进行所述移动终端的越区切换的步骤还包括：
若所述移动终端越区切换失败，则将所述测量结果中信号强度最大的第二相邻小区作为第二目标小区，并将包含所述第二目标小区信息的盲切换或盲重定向命令发送给移动终端，以便所述移动终端根据所述盲切换或盲重定向命令中的第二目标小区信息盲切换或盲重定向至第二目标小区。
本发明实施例还提供了一种移动通信系统中盲切换或盲重定向的装置，包括：
测量模块，设置为对处于网络侧当前小区边缘的盲切换或盲重定向区域中所有相邻小区的信号强度进行实时测量；
检测模块，设置为通过对网络侧当前小区中的移动终端的位置进行检测，确定所述移动终端是否进入所述盲切换或盲重定向区域；以及
切换模块，设置为当所述检测模块根据所述检测结果确定所述移动终端已经进入所述盲切换或盲重定向区域时，根据所述测量模块所测量的所有相邻小区的信号强度进行所述移动终端的越区切换。
可选地，所述装置还包括：
排序模块，设置为根据所述测量模块测量得到的盲切换或盲重定向区域
中所有相邻小区的信号强度对测量结果中的所有相邻小区进行排序；以及
更新模块，设置为通过对所述所有相邻小区的信号强度进行周期性测量，对测量结果中的相邻小区排序进行更新。
可选地，所述检测模块包括：
获取子模块，设置为当获取到来自移动终端的盲切换或盲重定向请求后，获取所述移动终端的当前位置；
判断子模块，设置为根据预置的小区覆盖信息判断所述获取子模块所获取的移动终端的当前位置是否被相邻小区覆盖，若被相邻小区覆盖，则确定所述移动终端处于盲切换或盲重定向区域，若不被相邻小区覆盖，则确定所述移动终端未处于盲切换或盲重定向区域。
可选地，所述切换模块包括：
第一切换子模块，设置为将所述测量结果中信号强度最大的第一相邻小区作为第一目标小区，并将包含所述第一目标小区信息的盲切换或盲重定向命令发送给移动终端。
可选地，所述切换模块还包括：
第二切换子模块，设置为若所述移动终端越区切换失败，则将所述测量结果中信号强度最大的第二相邻小区作为第二目标小区，并将包含所述第二目标小区信息的盲切换或盲重定向命令发送给移动终端。
本发明实施例还提供一种计算机可读存储介质，存储有程序指令，当该程序指令被执行时可实现上述方法。
本发明实施例通过提供一种由网络侧测量其相邻小区的信号质量，再根据移动终端所处的位置来确定何时向移动终端发出盲切换或盲重定向命令的方法，使得移动终端在小区之间切换时，省去了移动终端测量上报的过程，降低了基站的信令负载，并提高了切换时的通信质量。此外，还可以帮助移动终端选择最适合的目标小区发起切换，有效地减少了因为盲切换或盲重定向的目标小区不适合而导致的掉话、反复盲切换或盲重定向消耗网络资源的概率。
附图概述
图1是本发明实施例一提供的移动通信系统中盲切换和盲重定向的方法流程图；
图2是本发明实施例二提供的移动通信系统中盲切换和盲重定向的装置结构示意图；
图3是本发明实施例三提供的移动通信系统中盲切换和盲重定向的基站新增模块的工作流程图；
图4是本发明实施例四提供的移动通信系统中盲切换和盲重定向的盲切换或盲重定向的执行流程图。
以下结合附图对本发明实施例进行详细说明。
实施例一
图1是本发明实施例提供的移动通信系统中盲切换和盲重定向的方法流程图，如图1所示，包括步骤如下：
步骤S101：网络侧当前小区对处于本小区边缘的盲切换或盲重定向区域中所有相邻小区的信号强度进行实时测量；
可选地，在步骤S101中，所述的网络侧当前小区对处于本小区边缘的盲切换或盲重定向区域中所有相邻小区的信号强度进行实时测量的步骤之后还包括：
网络侧当前小区根据测量得到的盲切换或盲重定向区域中所有相邻小区的信号强度对测量结果中的所有相邻小区进行排序；
通过对所述所有相邻小区的信号强度进行周期性测量，对测量结果中的相邻小区排序进行更新。
步骤S102：网络侧当前小区通过对本小区中的移动终端的位置进行检测，确定所述移动终端是否进入所述盲切换或盲重定向区域；
可选地，在步骤S102中，当网络侧当前小区获取到来自移动终端的盲切
换或盲重定向请求后，获取所述移动终端的当前位置；根据预置的小区覆盖信息判断所获取的移动终端的当前位置是否被相邻小区覆盖，若被相邻小区覆盖，则确定所述移动终端处于盲切换或盲重定向区域，若不被相邻小区覆盖，则确定所述移动终端未处于盲切换或盲重定向区域。
步骤S103：当网络侧当前小区根据所述检测结果确定所述移动终端已经进入所述盲切换或盲重定向区域时，根据所测量的所有相邻小区的信号强度进行所述移动终端的越区切换。
可选地，在步骤S103中，所述的根据所测量的所有相邻小区的信号强度进行所述移动终端的越区切换的步骤包括：
网络侧当前小区将所述测量结果中信号强度最大的第一相邻小区作为第一目标小区，并将包含所述第一目标小区信息的盲切换或盲重定向命令发送给移动终端，以便所述移动终端根据所述盲切换或盲重定向命令中的第一目标小区信息盲切换或盲重定向至第一目标小区。
可选地，所述的根据所测量的所有相邻小区的信号强度进行所述移动终端的越区切换的步骤还包括：
若所述移动终端越区切换失败，则将所述测量结果中信号强度最大的第二相邻小区作为第二目标小区，并将包含所述第二目标小区信息的盲切换或盲重定向命令发送给移动终端，以便所述移动终端根据所述盲切换或盲重定向命令中的第二目标小区信息盲切换或盲重定向至第二目标小区。
在一次盲切换或盲重定向过程中，网络侧不会为所述移动终端选择相同的小区作为目标小区，当首次选择第一相邻小区作为目标小区，且移动终端越区切换失败，网络侧可标记该第一相邻小区，并从测量结果中选择信号强度最大的第二相邻小区作为新的目标小区。
实施例二
图2是本发明实施例提供的移动通信系统中盲切换和盲重定向的装置结构示意图，如图2所示，包括：测量模块21、检测模块22和切换模块23，其中：
所述测量模块21，设置为对处于网络侧当前小区边缘的盲切换或盲重定向区域中所有相邻小区的信号强度进行实时测量；
所述检测模块22，设置为通过对网络侧当前小区中的移动终端的位置进行检测，确定所述移动终端是否进入所述盲切换或盲重定向区域；
可选地，所述检测模块22包括获取子模块221和判断子模块222，其中，所述检测模块22的获取子模块221设置为当获取到来自移动终端的盲切换或盲重定向请求后，获取所述移动终端的当前位置；所述检测模块22的判断子模块222设置为根据预置的小区覆盖信息判断所述获取子模块221所获取的移动终端的当前位置是否被相邻小区覆盖，若被相邻小区覆盖，则确定所述移动终端处于盲切换或盲重定向区域，若不被相邻小区覆盖，则确定所述移动终端未处于盲切换或盲重定向区域；
所述切换模块23，设置为当所述检测模块22根据所述检测结果确定所述移动终端已经进入所述盲切换或盲重定向区域时，根据所述测量模块21所测量的所有相邻小区的信号强度进行所述移动终端的越区切换。
可选地，所述切换模块23包括第一切换子模块231，其中，所述切换模块23的第一切换子模块231设置为将所述测量结果中信号强度最大的第一相邻小区作为第一目标小区，并将包含所述第一目标小区信息的盲切换或盲重定向命令发送给移动终端；可选地，所述切换模块23还包括第二切换子模块232，所述切换模块23的第二切换子模块232设置为若所述移动终端越区切换失败，则将所述测量结果中信号强度最大的第二相邻小区作为第二目标小区，并将包含所述第二目标小区信息的盲切换或盲重定向命令发送给移动终端。
可选地，所述装置还包括排序模块24和更新模块25，其中：
所述排序模块24，设置为根据所述测量模块21测量得到的盲切换或盲重定向区域中所有相邻小区的信号强度对测量结果中的所有相邻小区进行排序；
所述更新模块25，设置为通过对所述所有相邻小区的信号强度进行周期性测量，对测量结果中的相邻小区排序进行更新。
实施例三
图3是本发明实施例提供的移动通信系统中盲切换和盲重定向的基站新增模块的工作流程图，如图3所示，在本实施例中，在基站侧增加小区信号测量模块31，测量结果存储模块32和移动终端位置查询模块33。小区信号测量模块31定时测量覆盖到当前基站下相邻小区(异频、同频和不同制式)的信号质量，并将测量到结果传递给测量结果存储模块32进行存储或更新；测量结果存储模块32设置为存储基站测量到的相邻小区的测量结果(包括同频、异频和不同制式)，并对测量结果按照一定的规则进行排序，通常按信号质量从好到差排序；移动终端位置查询模块33定时获取移动终端当前处于基站网络中的位置，如果移动终端位置查询模块33查询到移动终端进入到盲切换或盲重定向的区域，则向小区信号测量模块31发送消息告知其当前的移动终端已经进入到盲切换或盲重定向的区域，满足盲切换或盲重定向条件；小区信号测量模块31查询测量结果存储模块32，然后从测量结果存储模块32中选择一个信号强度最好且覆盖到移动终端的小区，并发起包含该小区的相关信息的盲切换或盲重定向命令给移动终端，命令移动终端进行切换，从而提高盲切换或盲重定向的成功率，提高用户体验。
其中，在网络布局完成后，其结构相对比较固定，网络中的基站位置和小区参数一般也不会变化。因此，基站间相邻小区也相对固定，进行大规模网络升级或重新规划的可能性也比较小。此外，对于小区信号测量模块31来说，每个小区的信号质量是实时变化的，但是正常情况下波动一般不会太大，因此，小区信号测量模块31周期性地监测相邻小区的信号质量并通知测量结果存储模块32对其小区记录进行更新。
实施例四
图4是本发明实施例提供的移动通信系统中盲切换和盲重定向的盲切换或盲重定向的执行流程图。如图4所示，网络侧获取移动终端的小区盲切换或盲重定向需求；网络侧根据预先配置的小区覆盖范围信息，判断目标小区是否能够覆盖移动终端的当前位置，如果是则将移动终端盲切换或盲重定向
至该目标小区。包括步骤如下：
步骤S401：开始；
步骤S402：是否有与当前小区覆盖的小区且能覆盖到移动终端，即，判断当前小区是否有其他小区能覆盖到，如果有与当前小区覆盖的小区且能覆盖到移动终端，进入步骤S403，反之进入步骤S404；
步骤S403：根据基站存储的小区信息，选择一个信号最好的目标小区，即，如果有其他小区覆盖到则从测量结果存储模块32选择信号最好的一个小区，此外，如果移动终端盲切换或盲重定向不成功，则从测量结果存储模块32选择信号第二好的小区向移动终端发出盲切换或盲重定向命令，直到终端切换成功为止，进入步骤S406；
步骤S404：按照传统的方法进行盲切换或盲重定向；
步骤S405：成功找到并接入，进入步骤S408；
步骤S406：命令终端向所选目标小区盲切换或盲重定向，即，向移动终端发出盲切换或盲重定向命令；
步骤S407：判断盲切换或盲重定向是否成功，如果成功进入步骤S408，反之返回步骤S403；
步骤S408：结束。
综上所述，采用本发明实施例：
一方面可以提高用户体验。采用本发明实施例所提出的方案后，因为发出盲切换或盲重定向命令的基站对相邻小区都有非常准确的测量结果，只要移动终端进入了满足盲切换或盲重定向的区域，那么其切换成功的可能性就会大大地增加，从而提高了盲切换或盲重定向的成功率。因为盲切换或盲重定向的成功率提高了，也就减少了掉话、断网等事件的发生概率，提高了用户体验。
另一方面可以节省网络资源。本发明实施例通过基站测量相邻小区的信号质量，然后由基站向移动终端下发切换命令，这样一次性切换成功率会大大提高。如果在切换或重定向失败时，移动终端还会继续选择其它目标小区反复进行切换或重定向的过程，这样反复就会消耗了大量的网络资源。采用
本发明实施例提出的方案后，增加了第一次就选择到合适目标小区的概率，从而节省了网络资源。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序来指令相关硬件完成，上述程序可以存储于计算机可读存储介质中，如只读存储器、磁盘或光盘等。可选地，上述实施例的全部或部分步骤也可以使用一个或多个集成电路来实现。相应地，上述实施例中的各模块/单元可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。本发明实施例不限制于任何特定形式的硬件和软件的结合。
本发明实施例通过提供一种由网络侧测量其相邻小区的信号质量，再根据移动终端所处的位置来确定何时向移动终端发出盲切换或盲重定向命令的方法，使得移动终端在小区之间切换时，省去了移动终端测量上报的过程，降低了基站的信令负载，并提高了切换时的通信质量。此外，还可以帮助移动终端选择最适合的目标小区发起切换，有效地减少了因为盲切换或盲重定向的目标小区不适合而导致的掉话、反复盲切换或盲重定向消耗网络资源的概率。
Claims (11)
- 一种移动通信系统中盲切换或盲重定向的方法，包括：网络侧当前小区对处于本小区边缘的盲切换或盲重定向区域中所有相邻小区的信号强度进行实时测量；网络侧当前小区通过对本小区中的移动终端的位置进行检测，确定所述移动终端是否进入所述盲切换或盲重定向区域；当网络侧当前小区根据所述检测结果确定所述移动终端已经进入所述盲切换或盲重定向区域时，根据所测量的所有相邻小区的信号强度进行所述移动终端的越区切换。
- 根据权利要求1所述的方法，所述网络侧当前小区对处于本小区边缘的盲切换或盲重定向区域中所有相邻小区的信号强度进行实时测量的步骤之后，所述方法还包括：网络侧当前小区根据测量得到的盲切换或盲重定向区域中所有相邻小区的信号强度对测量结果中的所有相邻小区进行排序；通过对所述所有相邻小区的信号强度进行周期性测量，对测量结果中的相邻小区排序进行更新。
- 根据权利要求1所述的方法，其中，所述网络侧当前小区通过对本小区中的移动终端的位置进行检测，确定所述移动终端是否进入所述盲切换或盲重定向区域的步骤包括：当网络侧当前小区获取到来自移动终端的盲切换或盲重定向请求后，获取所述移动终端的当前位置；根据预置的小区覆盖信息判断所获取的移动终端的当前位置是否被相邻小区覆盖，若被相邻小区覆盖，则确定所述移动终端处于盲切换或盲重定向区域，若不被相邻小区覆盖，则确定所述移动终端未处于盲切换或盲重定向区域。
- 根据权利要求2或3所述的方法，其中，所述根据所测量的所有相邻小区的信号强度进行所述移动终端的越区切换的步骤包括：网络侧当前小区将所述测量结果中信号强度最大的第一相邻小区作为第一目标小区，并将包含所述第一目标小区信息的盲切换或盲重定向命令发送给移动终端。
- 根据权利要求4所述的方法，其中，所述的根据所测量的所有相邻小区的信号强度进行所述移动终端的越区切换的步骤还包括：若所述移动终端越区切换失败，则将所述测量结果中信号强度最大的第二相邻小区作为第二目标小区，并将包含所述第二目标小区信息的盲切换或盲重定向命令发送给移动终端。
- 一种移动通信系统中盲切换或盲重定向的装置，包括：测量模块，设置为对处于网络侧当前小区边缘的盲切换或盲重定向区域中所有相邻小区的信号强度进行实时测量；检测模块，设置为通过对网络侧当前小区中的移动终端的位置进行检测，确定所述移动终端是否进入所述盲切换或盲重定向区域；以及切换模块，设置为当所述检测模块根据所述检测结果确定所述移动终端已经进入所述盲切换或盲重定向区域时，根据所述测量模块所测量的所有相邻小区的信号强度进行所述移动终端的越区切换。
- 根据权利要求6所述的装置，所述装置还包括：排序模块，设置为根据所述测量模块测量得到的盲切换或盲重定向区域中所有相邻小区的信号强度对测量结果中的所有相邻小区进行排序；以及更新模块，设置为通过对所述所有相邻小区的信号强度进行周期性测量，对测量结果中的相邻小区排序进行更新。
- 根据权利要求6所述的装置，其中，所述检测模块包括：获取子模块，设置为当获取到来自移动终端的盲切换或盲重定向请求后，获取所述移动终端的当前位置；以及判断子模块，设置为根据预置的小区覆盖信息判断所述获取子模块所获取的移动终端的当前位置是否被相邻小区覆盖，若被相邻小区覆盖，则确定所述移动终端处于盲切换或盲重定向区域，若不被相邻小区覆盖，则确定所述移动终端未处于盲切换或盲重定向区域。
- 根据权利要求6所述的装置，其中，所述切换模块包括：第一切换子模块，设置为将所述测量结果中信号强度最大的第一相邻小区作为第一目标小区，并将包含所述第一目标小区信息的盲切换或盲重定向命令发送给移动终端。
- 根据权利要求9所述的装置，所述切换模块还包括：第二切换子模块，设置为在若所述移动终端越区切换失败，则将所述测量结果中信号强度最大的第二相邻小区作为第二目标小区，并将包含所述第二目标小区信息的盲切换或盲重定向命令发送给移动终端。
- 一种计算机可读存储介质，存储有程序指令，当该程序指令被执行时可实现权利要求1-5任一项所述的方法。
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