WO2008040143A1 - A base station and method for adjusting the down tilt angle of the antenna - Google Patents
A base station and method for adjusting the down tilt angle of the antenna Download PDFInfo
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- WO2008040143A1 WO2008040143A1 PCT/CN2007/002597 CN2007002597W WO2008040143A1 WO 2008040143 A1 WO2008040143 A1 WO 2008040143A1 CN 2007002597 W CN2007002597 W CN 2007002597W WO 2008040143 A1 WO2008040143 A1 WO 2008040143A1
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- WIPO (PCT)
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- downtilt angle
- antenna
- normal
- base station
- downtilt
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/246—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for base stations
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/005—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using remotely controlled antenna positioning or scanning
Definitions
- the present invention relates to the field of mobile communications, and in particular to an antenna adjustment technique for a base station. Background technique
- Mobile communication means that at least one of the two parties communicates information during the movement, such as communication between the mobile body and the fixed point, and communication between the mobile body and the mobile body belongs to the mobile communication category.
- 3G Mobile communication technology has developed rapidly in recent years and has now evolved into the Third Generation Mobile Telephony, or 3G. Compared with the first generation analog system and the second generation of Global System for Mobile communication (“GSM”), Time Division Multiple Access (“TDMA”) and other digital mobile communication technologies, 3G refers to A new generation mobile communication system that combines wireless communication with multimedia communication such as the Internet.
- GSM Global System for Mobile communication
- TDMA Time Division Multiple Access
- 3G refers to A new generation mobile communication system that combines wireless communication with multimedia communication such as the Internet.
- the 2000 version of the 3rd Generation Partnership Project (3GPP) also includes three 3G technologies: Wideband Code Division Multiple Access (Wideband) for Frequency Division Duplex (FDD) Code Division Multiple Access (WCDMA), Time Division Duplex (TDD) Time Division Synchronous Code Division Multiple Access (TD-SCDMA) and time division Time Division Code Division Multiple Access (“TD-CDMA”).
- Wideband Code Division Multiple Access for Frequency Division Duplex (FDD) Code Division Multiple Access (WCDMA), Time Division Duplex (TDD) Time Division Synchronous Code Division Multiple Access (TD-SCDMA) and time division Time Division Code Division Multiple Access (“TD-CDMA”).
- WCDMA Frequency Division Duplex
- TDD Time Division Duplex
- TD-SCDMA Time Division Synchronous Code Division Multiple Access
- TD-CDMA time division Time Division Code Division Multiple Access
- the base station is an important functional component, responsible for the transmission and reception of radio frequency signals, and the access of wireless signals to the mobile switch center. In some systems, there may also be control functions such as channel allocation and cell management. A base station controls one or several cells.
- the base station antenna should be reasonably selected according to the actual coverage of the network, such as coverage requirements, traffic distribution, anti-interference requirements and network service quality. Since the choice of antenna type is closely related to terrain, ground objects, and traffic distribution, the antenna usage environment can be roughly divided into five types: urban areas, dense urban areas, suburbs, rural areas, and traffic trunks. In addition, during the setting process of the base station antenna, it is necessary to consider parameters such as the downtilt angle, the direction angle, the antenna hanging height, the antenna diversity distance, and the isolation distance.
- properly setting the antenna downtilt can not only reduce the influence of co-channel interference, but also effectively control the coverage of the base station and the soft handover ratio of the entire network, and can enhance the signal strength in the coverage area of the base station.
- the setting of the antenna downtilt is focused on two aspects, namely, focusing on interference suppression and focusing on strengthening the cover. These two aspects focus on different downtilt algorithms. In general, areas with densely distributed base stations should focus on interference suppression, while areas with sparse base stations are focused on considering enhanced coverage.
- the antenna gain decreases slowly due to the half power angle of the base station antenna. After exceeding the half power angle, the antenna gain (especially the upper lobe) decays very quickly. Therefore, from the viewpoint of controlling interference, it can be considered that the intersection of the extension line of the half power angle to the ground (point B) is the actual coverage edge of the base station.
- the antenna downtilt setting does not need to consider the influence of factors such as the vertical half power angle due to the fact that the base station is sparsely distributed. Therefore, in order to ensure that there is a sufficiently strong signal at the edge of the coverage area, the intersection of the extension line of the antenna main lobe to the ground (point B) is considered to be the actual coverage edge of the base station.
- the antenna downtilt setting must also consider the reflection and blocking of nearby mountains, water surfaces and tall glass walls. Therefore, the downtilt angle of a specific base station can be determined by using the above method while being combined with a specific environment.
- the network staff checks the down-tilt angle of each antenna of the base station one by one, and adjusts the antenna with abnormal tilt angle to adjust the down-tilt angle to the expected configuration value.
- the main reason for this is that the antenna tilt angle of each base station is manually queried to adjust the antenna with abnormal tilt angle. Not only makes the manual maintenance workload relatively large, but also The adjustment of the abnormally-adjusted ESC antenna depends on the time of artificially active inquiry. If there is no manual inquiry for a long period of time, it may be that the antenna signal coverage is incorrect during this period, which may affect the service communication index. . That is to say, when the external irresistible force (such as typhoon, earthquake, etc.) or human factors (such as artificially reinstalling the ESC antenna) causes the downslope of the base station's ESC antenna to be abnormal, it cannot be guaranteed to be adjusted as soon as possible. For the normal downtilt angle, the stability of the business communication indicators cannot be guaranteed. Summary of the invention
- the main object of the present invention is to provide a method for adjusting a downtilt angle of a base station and an antenna thereof, so that the signal coverage of the base station antenna can be ensured correctly, and the stability of the service communication index is improved.
- the present invention provides an antenna downtilt adjustment method, including the following steps:
- the base station periodically queries the downtilt angle of the electronically adjustable antenna, and if the inquired downtilt angle is inconsistent with the normal downtilt angle, The downtilt angle of the tunable antenna is adjusted to the normal downtilt angle.
- the base station queries the downtilt angle of the ESC antenna by interacting with the information of the ESC antenna.
- the base station adjusts a downtilt angle of the electrical tune antenna to the normal downtilt angle by:
- the ESC antenna After receiving the message, the ESC antenna adjusts the current downtilt angle to a normal downtilt angle carried in the message.
- the method further includes the following steps:
- the electronically adjustable antenna After adjusting the current downtilt angle to the normal downtilt angle, the electronically adjustable antenna returns a response message to adjust the downtilt angle success to the base station.
- the normal downtilt angle is pre-stored in the base station, and the base station is further in the method, the base station periodically queries the downtilt angle of the electronically modulated antenna by: Degree:
- the base station sets a timer, queries the downtilt angle of the ESC antenna when the timer expires, and restarts the timer.
- the invention also provides a base station, comprising:
- a module for adjusting a downtilt angle of the electrically adjustable antenna to the normal downtilt angle when the inquired downtilt angle is inconsistent with a normal downtilt angle is inconsistent with a normal downtilt angle.
- the module for periodically querying the downtilt angle of the electrical tune antenna interacts with the information of the electrically adjustable antenna to query a downtilt angle of the electrical tune antenna.
- the ESC antenna After receiving the message, the ESC antenna adjusts the current downtilt angle to a normal downtilt angle carried in the message.
- a module for storing the normal downtilt angle is also included;
- the module that compares the inquired downtilt angle with the normal downtilt angle compares the inquired downtilt angle with the saved normal downtilt angle.
- the base station periodically queries the downtilt angle of the electronically adjustable antenna, and if the inquired downtilt angle is inconsistent with the normal downtilt angle, The downtilt angle of the ESC antenna is adjusted to the normal downtilt angle. It solves the problem that the downtilt angle of some actual operation of the ESC antenna in the operation of the base station is inconsistent with the expected downtilt angle of the configuration, thereby ensuring the correctness of the signal coverage of the base station antenna and improving the stability of the service communication index. .
- the base station interacts with the information of the ESC antenna to query the downtilt angle of the ESC antenna, and queries
- a message for adjusting the downtilt angle is sent to the electronically adjustable antenna, and the normal downtilt angle value is carried in the message, and the current downtilt angle is adjusted by the electronically adjustable antenna to The normal downtilt angle carried in the message.
- the function of inquiring and adjusting the downtilt angle by the electric adjustment antenna makes the solution of the invention easy to implement.
- FIG. 1 is a flow chart of an antenna downtilt adjustment method according to a first embodiment of the present invention. detailed description
- the core of the present invention is that the base station periodically queries the ESC antenna for the current downtilt angle by setting a timer, and compares the queried downtilt angle with the saved normal downtilt angle. Sending a message for adjusting the downtilt angle to the ESC antenna, and carrying a normal downtilt angle value in the message, after receiving the message, the ESC antenna adjusts the current downtilt angle to a normal downtilt angle.
- the core of the present invention has been described above, and the antenna downtilt adjustment method of the first embodiment of the present invention will be described in detail below based on this principle.
- step 101 the base station determines whether the timer has timed out. Specifically, a timer is preset in the base station to periodically inquire about the downtilt angle of the electronically tuned antenna. For example, set the timer to 1 hour, and when the timer expires, that is, every 1 hour, query the current downtilt angle of the ESC antenna. Therefore, if it is determined in this step that the timer expires, then go to step 102 to query the current downtilt angle of the ESC antenna. Otherwise, continue to judge whether the timer has timed out.
- a timer is preset in the base station to periodically inquire about the downtilt angle of the electronically tuned antenna. For example, set the timer to 1 hour, and when the timer expires, that is, every 1 hour, query the current downtilt angle of the ESC antenna. Therefore, if it is determined in this step that the timer expires, then go to step 102 to query the current downtilt angle of the ESC antenna. Otherwise, continue to judge
- the base station waits for the timer to time out.
- a timer is preset in the base station to periodically inquire about the downtilt angle of the electronically tuned antenna. For example, if the timer is set to 1 hour, the timer triggers the base station to query the current downtilt angle of the ESC antenna every 1 hour, and proceeds to step 102. After one trigger operation, the base station continues to wait for the timer to time out. In step 102, the base station queries the ESC antenna for the current downtilt angle and restarts the timer.
- the base station actively sends a request message for querying the current downtilt angle of the electronically adjustable antenna to the electronically controlled antenna control portion, and after the electronically controlled antenna control portion receives the request message for querying the down-tilt angle of the electronically adjustable antenna of the base station, the electrical adjustment antenna according to the The current state calculates the current actual downtilt angle, and returns the downtilt angle to the base station.
- the base station restarts the timer while querying the current downtilt angle of the ESC antenna, so as to query the downtilt angle of the ESC antenna again after a period of time, and realize periodic inquiry of the downtilt angle of the ESC antenna.
- the base station By periodically querying the downtilt angle of the ESC antenna, it is avoided that the base station cannot perform corresponding operations because it does not know that the downtilt angle of the ESC antenna is abnormal, thereby ensuring the correctness of the signal coverage of the base station antenna and improving The stability of business communication indicators.
- step 103 the base station compares the queried downtilt angle with the normal downtilt angle to determine whether the two are consistent. If not, the process proceeds to step 104. Otherwise, the process returns to step 101. Specifically, the base station compares the queried downtilt angle with the normal downtilt angle configured by the user and saved in the configuration database. For example, the base station interacts with the information of the electronically tuned antenna, and the current actual downtilt angle is A, and the expected pitch of the electronically tuned antenna that is configured by the user and stored in the base station software is B.
- step 101 it is determined whether the timer has timed out.
- the normal downtilt angle configured by the user and stored in the base station software may be a specific value &, or may be a smaller range, such as (a - ⁇ , a + ⁇ ), where ⁇ For a small amount, such as 1 degree, the angle within the range is a normal downtilt angle to avoid being too sensitive to the adjustment of the down-tilt angle of the ESC antenna.
- step 104 the base station adjusts the downtilt angle of the electronically adjustable antenna to a normal downtilt angle by an electrical adjustment antenna.
- the base station sends a message for adjusting the downtilt angle of the antenna to the electronically controlled antenna control portion, and
- the message carries a normal downtilt angle. Since the ESC antenna can adjust its antenna downtilt angle by an electrical signal, when the ESC antenna control section receives the message, the downtilt angle of the antenna is adjusted to a normal downtilt angle by the self motor system.
- the base station sends a message for adjusting the downtilt angle of the antenna to the electronically controlled antenna control part, and in the message, the actual downtilt angle of the electronically adjustable antenna is adjusted to the expected downturn angle of the original electronically configured antenna in the base station software.
- the ESC antenna control section receives the message, the actual downtilt angle of the antenna is adjusted to the downtilt angle B by its own motor system, and the downtilt adjustment success response is returned to the base station after the adjustment is completed.
- the downtilt angle and expected configuration of some actual operation of the ESC antenna that may occur during the operation of the base station are solved.
- the problem of inconsistent down-tilt angles ensures that the antenna signal coverage is consistent with the original expectations, and the impact on the services of the local part of the radio access network is avoided.
- the function of inquiring and adjusting the downtilt angle by the ESC antenna is utilized, making the present embodiment easier to implement.
- the base station includes: a module for periodically querying a downtilt angle of the electric adjustable antenna; a module for storing a normal downtilt angle; and comparing whether the inquired downtilt angle and the normal downtilt angle are compared A consistent module; and a module for adjusting the downtilt angle of the ESC antenna to a normal downtilt angle when the inquired downtilt angle is inconsistent with the normal downtilt angle.
- the module for periodically querying the downtilt angle of the ESC antenna periodically interrogates the downtilt angle of the ESC antenna by interacting with the information of the ESC antenna. If the module for comparison determines that the downtilt angle of the query is inconsistent with the normal downtilt angle saved in the module for saving the normal downtilt angle, the module that adjusts the downtilt angle of the electronically adjustable antenna to the normal downtilt angle is Sending a message to adjust the downtilt angle to the ESC antenna, and carrying the normal downtilt angle value in the message, after receiving the message, the ESC antenna adjusts the current downtilt angle to the normal downtilt angle carried in the message.
- the signal coverage of the base station antenna is guaranteed to be consistent with the expected, and the impact on the services of the local part of the radio access network is avoided.
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Abstract
A base station and method for adjusting the down tilt angle of the antenna, which may guarantee a exactness signal coverage area of the antenna of a base station, and improve the stability of parameters of operation communication. The base station periodically queries down tilt angle of the electric regulating antenna. If the down tilt angle, then adjust the down tilt angle of the electric regulating antenna to the normal down tilt angle. The base station queries the down tilt angle of the electric regulating antenna by commuting information with the electric regulating antenna, and sends message for adjusting the down tilt angle to the electric regulating antenna when the down tilt angle queried is not identical with the normal down tilt angle. The message carries the normal down tilt angle value, and the electric regulating antenna adjusts current down tilt angle to the normal down tilt angle carried by the message.
Description
一种基站及其天线的下倾角调整方法 Down-tilt angle adjustment method for base station and antenna thereof
技术领域 Technical field
本发明涉及移动通信领域， 特别涉及基站的天线调整技术。 背景技术 The present invention relates to the field of mobile communications, and in particular to an antenna adjustment technique for a base station. Background technique
移动通信是指通信双方至少有一方在运动中进行信息交互， 如移动体与固 定点之间的通信， 移动体与移动体之间的通信， 都归属于移动通信范畴。 Mobile communication means that at least one of the two parties communicates information during the movement, such as communication between the mobile body and the fixed point, and communication between the mobile body and the mobile body belongs to the mobile communication category.
移动通信技术近年来得到了迅速发展， 目前已经发展到第三代移动通信技 术（ Third Generation Mobile Telephony ), 即 3G。 相对第一代模拟制式和第二代 全球移动通信***（ Global System for Mobile communication, 简称 "GSM" )、 时分多址 （Time DivisionM ultiple Access, 简称 "TDMA" ) 等数字移动通信技 术， 3G是指将无线通信与互联网等多媒体通信结合的新一代移动通信***。 Mobile communication technology has developed rapidly in recent years and has now evolved into the Third Generation Mobile Telephony, or 3G. Compared with the first generation analog system and the second generation of Global System for Mobile communication ("GSM"), Time Division Multiple Access ("TDMA") and other digital mobile communication technologies, 3G refers to A new generation mobile communication system that combines wireless communication with multimedia communication such as the Internet.
第三代合作伙伴项目 （3rd Generation Partnership Project, 简称 "3GPP" )的 2000版本也已经包含三种 3G技术： 频分双工 （ Frequency Division Duplex, 简称 "FDD" ) 的宽带码分多址 （Wideband Code Division Multiple Access , 简称 "WCDMA" ), 时分双工 ( Time Division Duplex, 简称 "TDD" ) 的时分同步码 分多址 ( Time Division Synchronous Code Division Multiple Access , 筒称 "TD-SCDMA" )与时分码分多址（ Time Division Code Division Multiple Access, 简称 "TD-CDMA" )。 The 2000 version of the 3rd Generation Partnership Project (3GPP) also includes three 3G technologies: Wideband Code Division Multiple Access (Wideband) for Frequency Division Duplex (FDD) Code Division Multiple Access (WCDMA), Time Division Duplex (TDD) Time Division Synchronous Code Division Multiple Access (TD-SCDMA) and time division Time Division Code Division Multiple Access ("TD-CDMA").
在移动网络中， 基站是重要的功能部件， 负责射频信号的发送和接收， 以 及无线信号至移动交换机中心的接入， 在某些***中还可以有信道分配、 蜂窝 小区管理等控制功能， 一般一个基站控制一个或数个蜂窝小区。 In the mobile network, the base station is an important functional component, responsible for the transmission and reception of radio frequency signals, and the access of wireless signals to the mobile switch center. In some systems, there may also be control functions such as channel allocation and cell management. A base station controls one or several cells.
在移动通信网工程设计中， 应该根据网络的覆盖要求、 话务量分布、 抗干 扰要求和网络服务质量等实际情况来合理的选择基站天线。 由于天线类型的选 择与地形、 地物， 以及话务量分布紧密相关， 可以将天线使用环境大致分为五 种类型： 城区、 密集城区、 郊区、 农村地区、 交通干线等。
此外， 基站天线设置过程中， 需要重点考虑下倾角、 方向角、 天线挂高、 天线分集距离和隔离距离等参数。 In the mobile communication network engineering design, the base station antenna should be reasonably selected according to the actual coverage of the network, such as coverage requirements, traffic distribution, anti-interference requirements and network service quality. Since the choice of antenna type is closely related to terrain, ground objects, and traffic distribution, the antenna usage environment can be roughly divided into five types: urban areas, dense urban areas, suburbs, rural areas, and traffic trunks. In addition, during the setting process of the base station antenna, it is necessary to consider parameters such as the downtilt angle, the direction angle, the antenna hanging height, the antenna diversity distance, and the isolation distance.
具体地说， 合理设置天线下倾角不但可以降低同频干扰的影响， 有效控制 基站的覆盖范围和整网的软切换比例， 而且可以加强本基站覆盖区内的信号强 度。 Specifically, properly setting the antenna downtilt can not only reduce the influence of co-channel interference, but also effectively control the coverage of the base station and the soft handover ratio of the entire network, and can enhance the signal strength in the coverage area of the base station.
通常天线下倾角的设定有两方面侧重， 即侧重于干扰抑制和侧重于加强覆 盖。 这两方面侧重分别对应不同的下倾角算法。 一般而言， 对基站分布密集的 地区应侧重于考虑干扰抑制， 而基站分布较稀疏的地区则侧重于考虑加强覆盖。 Usually, the setting of the antenna downtilt is focused on two aspects, namely, focusing on interference suppression and focusing on strengthening the cover. These two aspects focus on different downtilt algorithms. In general, areas with densely distributed base stations should focus on interference suppression, while areas with sparse base stations are focused on considering enhanced coverage.
在考虑侧重于干扰抑制的下倾角时， 由于在基站天线半功率角范围内， 天 线增益下降緩慢， 超过半功率角后， 天线增益 （尤其是上波瓣） 衰减很快。 因 此从控制干扰的角度考虑， 可认为半功率角的延长线到地面的交点（B点）为该 基站的实际覆盖边缘。 When considering the downtilt focusing on interference suppression, the antenna gain decreases slowly due to the half power angle of the base station antenna. After exceeding the half power angle, the antenna gain (especially the upper lobe) decays very quickly. Therefore, from the viewpoint of controlling interference, it can be considered that the intersection of the extension line of the half power angle to the ground (point B) is the actual coverage edge of the base station.
在考虑侧重于加强覆盖的下倾角时， 由于在基站分布较稀疏的地区， 天线 下倾角设定无需考虑垂直半功率角等因素的影响。 因此为保证覆盖区边缘有足 够强的信号， 可认为天线主瓣方向延长线到地面的交点（B点）为该基站的实际 覆盖边缘。 When considering the downtilt angle that focuses on the enhanced coverage, the antenna downtilt setting does not need to consider the influence of factors such as the vertical half power angle due to the fact that the base station is sparsely distributed. Therefore, in order to ensure that there is a sufficiently strong signal at the edge of the coverage area, the intersection of the extension line of the antenna main lobe to the ground (point B) is considered to be the actual coverage edge of the base station.
由于基站周围环境十分复杂， 天线下倾角设定还必须考虑附近山体、 水面 和高大玻璃幕墙的反射和阻挡。 因此具体基站的下倾角可利用上述方法， 同时 结合具体环境最终取定。 Due to the complexity of the surrounding environment of the base station, the antenna downtilt setting must also consider the reflection and blocking of nearby mountains, water surfaces and tall glass walls. Therefore, the downtilt angle of a specific base station can be determined by using the above method while being combined with a specific environment.
由此可见， 为了实现降低同频干扰影响与加强基站覆盖区内的信号质量等 目的， 确保基站天线的下倾角处于预期配置值是非常重要的。 It can be seen that in order to achieve the purpose of reducing the influence of co-channel interference and enhancing the signal quality in the coverage area of the base station, it is very important to ensure that the downtilt angle of the base station antenna is at the expected configuration value.
目前， 由网络工作人员逐一检查每个基站的电调天线下倾角， 并对倾角不 正常的天线进行调整， 将其下倾角度调整为预期配置值。 At present, the network staff checks the down-tilt angle of each antenna of the base station one by one, and adjusts the antenna with abnormal tilt angle to adjust the down-tilt angle to the expected configuration value.
在实际应用中， 存在以下问题： 维护工作量比较大， 而且无法保证业务通 讯指标的稳定性。 In practical applications, the following problems exist: The maintenance workload is relatively large, and the stability of the business communication indicators cannot be guaranteed.
造成这种情况的主要原因在于， 由人工查询每个基站的电调天线下倾角， 对倾角不正常的天线进行调整。 不但使得人工维护工作量比较大， 而且， 对倾
角不正常的电调天线的调整取决于人为地主动查询的时间， 如果有相当长一段 时间没有人工查询的话， 则有可能这段时间内天线信号覆盖范围就不正确， 进 而可能影响业务通讯指标。 也就是说， 当外部不可抗拒作用力 （如台风、 地震 等） 或人为因素 （如人为重新安装了电调天线） 导致基站的电调天线下倾角不 正常时， 无法保证能尽快地将其调整为正常的下倾角度， 从而无法保证业务通 讯指标的稳定性。 发明内容 The main reason for this is that the antenna tilt angle of each base station is manually queried to adjust the antenna with abnormal tilt angle. Not only makes the manual maintenance workload relatively large, but also The adjustment of the abnormally-adjusted ESC antenna depends on the time of artificially active inquiry. If there is no manual inquiry for a long period of time, it may be that the antenna signal coverage is incorrect during this period, which may affect the service communication index. . That is to say, when the external irresistible force (such as typhoon, earthquake, etc.) or human factors (such as artificially reinstalling the ESC antenna) causes the downslope of the base station's ESC antenna to be abnormal, it cannot be guaranteed to be adjusted as soon as possible. For the normal downtilt angle, the stability of the business communication indicators cannot be guaranteed. Summary of the invention
有鉴于此， 本发明的主要目的在于提供一种基站及其天线的下倾角调整方 法， 使得基站天线的信号覆盖范围能保证正确， 提高业务通讯指标的稳定性。 In view of this, the main object of the present invention is to provide a method for adjusting a downtilt angle of a base station and an antenna thereof, so that the signal coverage of the base station antenna can be ensured correctly, and the stability of the service communication index is improved.
为实现上述目的， 本发明提供了一种天线下倾角调整方法， 包含以下步骤： 基站周期性查询电调天线的下倾角度， 如果查询到的下倾角度与正常下倾 角度不一致， 则将该电调天线的下倾角度调整到所述正常下倾角度。 To achieve the above object, the present invention provides an antenna downtilt adjustment method, including the following steps: The base station periodically queries the downtilt angle of the electronically adjustable antenna, and if the inquired downtilt angle is inconsistent with the normal downtilt angle, The downtilt angle of the tunable antenna is adjusted to the normal downtilt angle.
其中， 所述基站通过与所述电调天线的信息交互， 查询该电调天线的下倾 角度。 The base station queries the downtilt angle of the ESC antenna by interacting with the information of the ESC antenna.
此外在所述方法中， 所述基站通过以下方式将所述电调天线的下倾角度调 整到所述正常下倾角度： In addition, in the method, the base station adjusts a downtilt angle of the electrical tune antenna to the normal downtilt angle by:
向所述电调天线发送调整下倾角度的消息， 并在该消息中携带所述正常下 倾角度值； Sending a message for adjusting the downtilt angle to the electrical adjustment antenna, and carrying the normal downtilt angle value in the message;
所述电调天线收到所述消息后， 将当前的下倾角度调整到该消息中携带的 正常下倾角度。 After receiving the message, the ESC antenna adjusts the current downtilt angle to a normal downtilt angle carried in the message.
此外在所述方法中， 还包含以下步骤： In addition, in the method, the method further includes the following steps:
所述电调天线将当前的下倾角度调整到正常下倾角度后， 向所述基站返回 调整下倾角度成功的响应消息。 After adjusting the current downtilt angle to the normal downtilt angle, the electronically adjustable antenna returns a response message to adjust the downtilt angle success to the base station.
此外在所述方法中， 所述正常下倾角度预先保存在所述基站中， 该基站将 此外在所述方法中， 所述基站通过以下方式周期性查询电调天线的下倾角
度： In addition, in the method, the normal downtilt angle is pre-stored in the base station, and the base station is further in the method, the base station periodically queries the downtilt angle of the electronically modulated antenna by: Degree:
所述基站设置定时器， 当定时器超时时查询所述电调天线的下倾角度， 并 重新启动该定时器。 The base station sets a timer, queries the downtilt angle of the ESC antenna when the timer expires, and restarts the timer.
本发明还提供了一种基站， 包含： The invention also provides a base station, comprising:
用于周期性查询电调天线的下倾角度的模块； a module for periodically querying a downtilt angle of an electrical adjustment antenna;
用于比较查询到的下倾角度与正常下倾角度是否一致的模块； a module for comparing whether the slanted downtilt angle is consistent with a normal downtilt angle;
和用于在查询到的下倾角度与正常下倾角度不一致时， 将所述电调天线的 下倾角度调整到所述正常下倾角度的模块。 And a module for adjusting a downtilt angle of the electrically adjustable antenna to the normal downtilt angle when the inquired downtilt angle is inconsistent with a normal downtilt angle.
其中， 所述周期性查询电调天线的下倾角度的模块通过与所述电调天线的 所述信息交互， 查询该电调天线的下倾角度。 The module for periodically querying the downtilt angle of the electrical tune antenna interacts with the information of the electrically adjustable antenna to query a downtilt angle of the electrical tune antenna.
此外， 所述在查询到的下倾角度与正常下倾角度不一致时， 将所述电调天 线的下倾角度调整到所述正常下倾角度的模块通过以下方式将该电调天线的下 倾角度调整到所述正常下倾角度： In addition, when the inquired downtilt angle is inconsistent with the normal downtilt angle, the module that adjusts the downtilt angle of the electrically adjustable antenna to the normal downtilt angle downwards the electrical tow antenna by: Adjust the angle to the normal downtilt angle:
向所述电调天线发送调整下倾角度的消息， 并在该消息中携带所述正常下 倾角度值； Sending a message for adjusting the downtilt angle to the electrical adjustment antenna, and carrying the normal downtilt angle value in the message;
所述电调天线收到所述消息后， 将当前的下倾角度调整到该消息中携带的 正常下倾角度。 After receiving the message, the ESC antenna adjusts the current downtilt angle to a normal downtilt angle carried in the message.
此外， 还包含用于保存所述正常下倾角度的模块； In addition, a module for storing the normal downtilt angle is also included;
所述比较查询到的下倾角度与正常下倾角度是否一致的模块将查询到的下 倾角度与所述保存的正常下倾角度进行比较。 The module that compares the inquired downtilt angle with the normal downtilt angle compares the inquired downtilt angle with the saved normal downtilt angle.
通过比较可以发现， 本发明的技术方案与现有技术的主要区别在于， 由基 站周期性地查询电调天线的下倾角度， 如果查询到的下倾角度与正常下倾角度 不一致， 则将该电调天线的下倾角度调整到正常下倾角度。 解决了基站运行中 可能出现的一些电调天线实际运行的下倾角度和预期配置的下倾角度不一致的 问题， 从而保证了基站天线的信号覆盖范围的正确性， 提高了业务通讯指标的 稳定性。 By comparison, it can be found that the main difference between the technical solution of the present invention and the prior art is that the base station periodically queries the downtilt angle of the electronically adjustable antenna, and if the inquired downtilt angle is inconsistent with the normal downtilt angle, The downtilt angle of the ESC antenna is adjusted to the normal downtilt angle. It solves the problem that the downtilt angle of some actual operation of the ESC antenna in the operation of the base station is inconsistent with the expected downtilt angle of the configuration, thereby ensuring the correctness of the signal coverage of the base station antenna and improving the stability of the service communication index. .
基站通过与电调天线的信息交互， 查询该电调天线的下倾角度， 并在查询
到的下倾角度与正常下倾角度不一致时， 向该电调天线发送调整下倾角度的消 息， 在该消息中携带正常下倾角度值， 由该电调天线将当前的下倾角度调整到 该消息中携带的正常下倾角度。 利用了电调天线查询和调整下倾角度的功能， 使得本发明方案易于实现。 附图说明 The base station interacts with the information of the ESC antenna to query the downtilt angle of the ESC antenna, and queries When the downtilt angle of the arrival is inconsistent with the normal downtilt angle, a message for adjusting the downtilt angle is sent to the electronically adjustable antenna, and the normal downtilt angle value is carried in the message, and the current downtilt angle is adjusted by the electronically adjustable antenna to The normal downtilt angle carried in the message. The function of inquiring and adjusting the downtilt angle by the electric adjustment antenna makes the solution of the invention easy to implement. DRAWINGS
图 1是根据本发明第一实施方式的天线下倾角调整方法流程图。 具体实施方式 1 is a flow chart of an antenna downtilt adjustment method according to a first embodiment of the present invention. detailed description
为使本发明的目的、 技术方案和优点更加清楚， 下面将结合附图对本发明 作进一步地详细描述。 The present invention will be further described in detail below with reference to the accompanying drawings.
本发明的核心在于， 基站通过设置定时器， 周期性地向电调天线查询当前 的下倾角度， 并将查询到的下倾角度与所保存的正常的下倾角度进行比较， 如 果不一致， 则向该电调天线发送调整下倾角度的消息， 并在该消息中携带正常 的下倾角度值， 该电调天线收到该消息后， 将当前的下倾角度调整为正常的下 倾角度。 The core of the present invention is that the base station periodically queries the ESC antenna for the current downtilt angle by setting a timer, and compares the queried downtilt angle with the saved normal downtilt angle. Sending a message for adjusting the downtilt angle to the ESC antenna, and carrying a normal downtilt angle value in the message, after receiving the message, the ESC antenna adjusts the current downtilt angle to a normal downtilt angle.
以上对本发明的核心进行了筒单说明， 下面根据该原理， 对本发明的第一 实施方式天线下倾角调整方法进行详细阐述。 The core of the present invention has been described above, and the antenna downtilt adjustment method of the first embodiment of the present invention will be described in detail below based on this principle.
如图 1所示， 在步骤 101中， 基站判断定时器是否超时。 具体地说， 在基站 中预先设置定时器， 以便周期性地查询电调天线的下倾角。 比如说， 将定时器 设置为 1小时， 当定时器超时时， 即每隔 1小时， 查询电调天线当前的下倾角。 因此， 如果在本步骤中判定该定时器超时， 则进入步骤 102, 查询电调天线当前 的下倾角， 否则， 继续判断定时器是否超时。 As shown in FIG. 1, in step 101, the base station determines whether the timer has timed out. Specifically, a timer is preset in the base station to periodically inquire about the downtilt angle of the electronically tuned antenna. For example, set the timer to 1 hour, and when the timer expires, that is, every 1 hour, query the current downtilt angle of the ESC antenna. Therefore, if it is determined in this step that the timer expires, then go to step 102 to query the current downtilt angle of the ESC antenna. Otherwise, continue to judge whether the timer has timed out.
或者， 在步骤 101中， 基站等待定时器超时。 具体地说， 在基站中预先设置 定时器， 以便周期性地查询电调天线的下倾角。 比如说， 将定时器设置为 1小时， 定时器每隔 1小时触发基站查询电调天线当前的下倾角， 进入步骤 102。 一次触 发操作后， 基站继续等待定时器超时。
在步骤 102中， 基站向电调天线查询当前的下倾角， 并重启定时器。 具体地 说， 基站主动向电调天线控制部分发送查询电调天线当前下倾角的请求消息， 当电调天线控制部分接收到基站的查询电调天线下倾角的请求消息后， 电调天 线根据其自身状态计算出当前实际的下倾角度， 将该下倾角度返回给基站。 Alternatively, in step 101, the base station waits for the timer to time out. Specifically, a timer is preset in the base station to periodically inquire about the downtilt angle of the electronically tuned antenna. For example, if the timer is set to 1 hour, the timer triggers the base station to query the current downtilt angle of the ESC antenna every 1 hour, and proceeds to step 102. After one trigger operation, the base station continues to wait for the timer to time out. In step 102, the base station queries the ESC antenna for the current downtilt angle and restarts the timer. Specifically, the base station actively sends a request message for querying the current downtilt angle of the electronically adjustable antenna to the electronically controlled antenna control portion, and after the electronically controlled antenna control portion receives the request message for querying the down-tilt angle of the electronically adjustable antenna of the base station, the electrical adjustment antenna according to the The current state calculates the current actual downtilt angle, and returns the downtilt angle to the base station.
基站在向电调天线查询当前的下倾角的同时， 重新启动定时器， 以便在一 段时间后再次查询电调天线的下倾角， 实现对电调天线下倾角的周期性查询。 通过周期性地查询电调天线的下倾角， 避免了基站由于不知道电调天线的下倾 角度已不正常而无法采取相应操作的情况， 从而保证了基站天线的信号覆盖范 围的正确性， 提高了业务通讯指标的稳定性。 The base station restarts the timer while querying the current downtilt angle of the ESC antenna, so as to query the downtilt angle of the ESC antenna again after a period of time, and realize periodic inquiry of the downtilt angle of the ESC antenna. By periodically querying the downtilt angle of the ESC antenna, it is avoided that the base station cannot perform corresponding operations because it does not know that the downtilt angle of the ESC antenna is abnormal, thereby ensuring the correctness of the signal coverage of the base station antenna and improving The stability of business communication indicators.
在步骤 103中， 基站比较查询到的下倾角度与正常的下倾角度， 判断两者是 否一致， 如果不一致， 则进入步骤 104 , 否则， 返回步骤 101。 具体地说， 基站 将查询到的下倾角度与由用户配置并保存在配置数据库中的正常的下倾角度进 行比较。 比如说， 基站通过与电调天线的信息交互， 查询到的当前实际的下倾 角度为 A, 由用户配置并保存在基站软件中的预期电调天线下倾角度为 B。 如果 A与 B不一致， 则说明该电调天线可能由于某种外部不可抗拒作用力 （如台风、 地震等）或人为因素（如人为重新安装了电调天线）， 当前的下倾角度已不正常， 进入步骤 104, 将该电调天线的下倾角度调整为预期的电调天线下倾角度， 以保 证天线信号覆盖范围正常， 提高业务通讯指标的稳定性； 如果 A与 B—致， 则说 明该电调天线的下倾角度正常， 无需进行调整， 返回步骤 101， 判断定时器是否 超时。 In step 103, the base station compares the queried downtilt angle with the normal downtilt angle to determine whether the two are consistent. If not, the process proceeds to step 104. Otherwise, the process returns to step 101. Specifically, the base station compares the queried downtilt angle with the normal downtilt angle configured by the user and saved in the configuration database. For example, the base station interacts with the information of the electronically tuned antenna, and the current actual downtilt angle is A, and the expected pitch of the electronically tuned antenna that is configured by the user and stored in the base station software is B. If A and B are inconsistent, it means that the ESC antenna may be abnormal due to some external irresistible force (such as typhoon, earthquake, etc.) or human factors (such as artificially reinstalling the ESC antenna). The current downtilt angle is abnormal. Go to step 104, adjust the downtilt angle of the ESC antenna to the expected down-tilt angle of the ESC antenna to ensure normal coverage of the antenna signal and improve the stability of the service communication index. If A and B are the same, then The down-tilt angle of the ESC antenna is normal, and no adjustment is needed. Returning to step 101, it is determined whether the timer has timed out.
需要说明的是， 由用户配置并保存在基站软件中的正常的下倾角度可以是 一个具体的数值&， 也可以是一个较小的范围， 如 （a - Δ ， a + Δ ), 其中 Δ为 一个小量， 如 1度， 在该范围内的角度均属于正常的下倾角度， 以避免对该电调 天线下倾角的调整过于敏感。 It should be noted that the normal downtilt angle configured by the user and stored in the base station software may be a specific value &, or may be a smaller range, such as (a - Δ, a + Δ ), where Δ For a small amount, such as 1 degree, the angle within the range is a normal downtilt angle to avoid being too sensitive to the adjustment of the down-tilt angle of the ESC antenna.
在步骤 104中， 基站通过电调天线将该电调天线的下倾角度调整为正常的下 倾角度。 In step 104, the base station adjusts the downtilt angle of the electronically adjustable antenna to a normal downtilt angle by an electrical adjustment antenna.
具体地说， 基站向电调天线控制部分发送调整天线下倾角的消息， 并在该
消息中携带正常的下倾角度。 由于电调天线可通过电信号调整其天线下倾角， 因此， 当该电调天线控制部分收到该消息时， 通过自身马达***将天线的下倾 角度调整为正常的下倾角度。 针对上述案例， 基站向电调天线控制部分发送调 整天线下倾角的消息， 在该消息中指定将电调天线的实际下倾角度调整为原先 用户配置在基站软件中的预期电调天线下倾角度 B。 当电调天线控制部分收到该 消息时， 通过自身马达***将天线的实际下倾角度调整到下倾角度 B, 并在调整 结束后向基站返回下倾角调整成功响应。 Specifically, the base station sends a message for adjusting the downtilt angle of the antenna to the electronically controlled antenna control portion, and The message carries a normal downtilt angle. Since the ESC antenna can adjust its antenna downtilt angle by an electrical signal, when the ESC antenna control section receives the message, the downtilt angle of the antenna is adjusted to a normal downtilt angle by the self motor system. For the above case, the base station sends a message for adjusting the downtilt angle of the antenna to the electronically controlled antenna control part, and in the message, the actual downtilt angle of the electronically adjustable antenna is adjusted to the expected downturn angle of the original electronically configured antenna in the base station software. B. When the ESC antenna control section receives the message, the actual downtilt angle of the antenna is adjusted to the downtilt angle B by its own motor system, and the downtilt adjustment success response is returned to the base station after the adjustment is completed.
通过周期性地查询电调天线的下倾角度， 并在该电调天线的下倾角度不正 常时进行调整， 解决了基站运行中可能出现的一些电调天线实际运行的下倾角 度和预期配置的下倾角度不一致的问题， 从而保证了天线信号覆盖范围与原先 预期的一致， 避免了对无线接入网局部部分的业务的影响。 而且， 在本实施方 式中， 利用了电调天线查询和调整下倾角度的功能， 使得本实施方案更易于实 现。 By periodically querying the downtilt angle of the ESC antenna and adjusting when the downtilt angle of the ESC antenna is abnormal, the downtilt angle and expected configuration of some actual operation of the ESC antenna that may occur during the operation of the base station are solved. The problem of inconsistent down-tilt angles ensures that the antenna signal coverage is consistent with the original expectations, and the impact on the services of the local part of the radio access network is avoided. Moreover, in the present embodiment, the function of inquiring and adjusting the downtilt angle by the ESC antenna is utilized, making the present embodiment easier to implement.
本发明第二实施方式的基站包含： 用于周期性查询电调天线的下倾角度的 模块； 用于保存正常下倾角度的模块； 用于比较查询到的下倾角度与正常下倾 角度是否一致的模块； 和用于在查询到的下倾角度与正常下倾角度不一致时， 将电调天线的下倾角度调整到正常下倾角度的模块。 The base station according to the second embodiment of the present invention includes: a module for periodically querying a downtilt angle of the electric adjustable antenna; a module for storing a normal downtilt angle; and comparing whether the inquired downtilt angle and the normal downtilt angle are compared A consistent module; and a module for adjusting the downtilt angle of the ESC antenna to a normal downtilt angle when the inquired downtilt angle is inconsistent with the normal downtilt angle.
具体地说， 用于周期性查询电调天线的下倾角度的模块通过与电调天线的 信息交互， 周期性查询该电调天线的下倾角度。 如果用于比较的模块判定查询 到的下倾角度与用于保存正常下倾角度的模块中所保存的正常下倾角度不一 致， 则将电调天线的下倾角度调整到正常下倾角度的模块向电调天线发送调整 下倾角度的消息， 并在该消息中携带正常下倾角度值， 电调天线收到该消息后， 将当前的下倾角度调整到该消息中携带的正常下倾角度， 保证基站天线的信号 覆盖范围与预期的一致， 避免了对无线接入网局部部分的业务的影响。 Specifically, the module for periodically querying the downtilt angle of the ESC antenna periodically interrogates the downtilt angle of the ESC antenna by interacting with the information of the ESC antenna. If the module for comparison determines that the downtilt angle of the query is inconsistent with the normal downtilt angle saved in the module for saving the normal downtilt angle, the module that adjusts the downtilt angle of the electronically adjustable antenna to the normal downtilt angle is Sending a message to adjust the downtilt angle to the ESC antenna, and carrying the normal downtilt angle value in the message, after receiving the message, the ESC antenna adjusts the current downtilt angle to the normal downtilt angle carried in the message. The signal coverage of the base station antenna is guaranteed to be consistent with the expected, and the impact on the services of the local part of the radio access network is avoided.
虽然通过参照本发明的某些优选实施方式， 已经对本发明进行了图示和描 述， 但本领域的普通技术人员应该明白， 可以在形式上和细节上对其作各种改 变， 而不偏离本发明的精神和范围。
While the invention has been illustrated and described with reference to the preferred embodiments embodiments The spirit and scope of the invention.
Claims
1、 一种天线下倾角调整方法， 其特征在于， 包含以下步驟： A method for adjusting an antenna downtilt angle, comprising the steps of:
基站周期性查询电调天线的下倾角度， 如果查询到的下倾角度与正常下倾 角度不一致， 则将该电调天线的下倾角度调整到所述正常下倾角度。 The base station periodically queries the downtilt angle of the ESC antenna. If the inquired downtilt angle is different from the normal downtilt angle, the downtilt angle of the ESC antenna is adjusted to the normal downtilt angle.
2、 根据权利要求 1所述的天线下倾角调整方法， 其特征在于， 所述基站通 过与所述电调天线的信息交互， 查询该电调天线的下倾角度。 The method for adjusting an antenna downtilt angle according to claim 1, wherein the base station queries the downtilt angle of the electronically tuned antenna by interacting with information of the electronically tuned antenna.
3、 根据权利要求 1所述的天线下倾角调整方法， 其特征在于， 所述基站通 过以下方式将所述电调天线的下倾角度调整到所述正常下倾角度： The antenna downtilt angle adjustment method according to claim 1, wherein the base station adjusts a downtilt angle of the electronically adjustable antenna to the normal downtilt angle by:
向所述电调天线发送调整下倾角度的消息， 并在该消息中携带所述正常下 倾角度值； Sending a message for adjusting the downtilt angle to the electrical adjustment antenna, and carrying the normal downtilt angle value in the message;
所述电调天线收到所述消息后， 将当前的下倾角度调整到该消息中携带的 正常下倾角度。 After receiving the message, the ESC antenna adjusts the current downtilt angle to a normal downtilt angle carried in the message.
4、 根据权利要求 3所述的天线下倾角调整方法， 其特征在于， 还包含以下 步骤： 4. The antenna downtilt adjustment method according to claim 3, further comprising the steps of:
所述电调天线将当前的下倾角度调整到正常下倾角度后， 向所述基站返回 调整下倾角度成功的响应消息。 After adjusting the current downtilt angle to the normal downtilt angle, the electronically adjustable antenna returns a response message to adjust the downtilt angle success to the base station.
5、 根据权利要求 1所述的天线下倾角调整方法， 其特征在于， 所述正常下 倾角度预先保存在所述基站中， 该基站将所述查询到的下倾角度与预先保存的 所述正常下倾角度进行比较。 The antenna downtilt angle adjustment method according to claim 1, wherein the normal downtilt angle is pre-stored in the base station, and the base station compares the queried downtilt angle with the pre-saved The normal downtilt angle is compared.
6、根据权利要求 1至 5中任一项所述的天线下倾角调整方法，其特征在于， 所述基站通过以下方式周期性查询电调天线的下倾角度： The antenna downtilt angle adjustment method according to any one of claims 1 to 5, wherein the base station periodically queries the downtilt angle of the electrical adjustment antenna by:
所述基站设置定时器， 当定时器超时时查询所述电调天线的下倾角度， 并 重新启动该定时器。 The base station sets a timer, queries the downtilt angle of the ESC antenna when the timer expires, and restarts the timer.
7、 一种基站， 其特征在于， 包含： 7. A base station, comprising:
用于周期性查询电调天线的下倾角度的模块； a module for periodically querying a downtilt angle of an electrical adjustment antenna;
用于比较查询到的下倾角度与正常下倾角度是否一致的模块；
和用于在查询到的下倾角度与正常下倾角度不一致时， 将所述电调天线的 下倾角度调整到所述正常下倾角度的模块。 a module for comparing whether the slanted downtilt angle is consistent with a normal downtilt angle; And a module for adjusting a downtilt angle of the electrically adjustable antenna to the normal downtilt angle when the inquired downtilt angle is inconsistent with a normal downtilt angle.
8、 根据权利要求 7所述的基站， 其特征在于， 所述周期性查询电调天线的 下倾角度的模块通过与所述电调天线的信息交互， 查询该电调天线的下倾角度。 The base station according to claim 7, wherein the module for periodically querying the downtilt angle of the electrical tune antenna queries the downtilt angle of the electrical tune antenna by interacting with the information of the electrically adjustable antenna.
9、 根据权利要求 7所述的基站， 其特征在于， 所述在查询到的下倾角度与 正常下倾角度不一致时， 将所述电调天线的下倾角度调整到所述正常下倾角度 的模块通过以下方式将该电调天线的下倾角度调整到所述正常下倾角度： The base station according to claim 7, wherein the downtilt angle of the electronically adjustable antenna is adjusted to the normal downtilt angle when the inquired downtilt angle is different from the normal downtilt angle The module adjusts the downtilt angle of the electrical adjustment antenna to the normal downtilt angle by:
向所述电调天线发送调整下倾角度的消息， 并在该消息中携带所述正常下 倾角度值； Sending a message for adjusting the downtilt angle to the electrical adjustment antenna, and carrying the normal downtilt angle value in the message;
所述电调天线收到所述消息后， 将当前的下倾角度调整到该消息中携带的 正常下倾角度。 After receiving the message, the ESC antenna adjusts the current downtilt angle to a normal downtilt angle carried in the message.
10、 根据权利要求 7至 9中任一项所述的基站， 其特征在于， 还包含用于 保存所述正常下倾角度的模块； The base station according to any one of claims 7 to 9, further comprising a module for saving the normal downtilt angle;
所述比较查询到的下倾角度与正常下倾角度是否一致的模块将查询到的下 倾角度与所述保存的正常下倾角度进行比较。
The module that compares the inquired downtilt angle with the normal downtilt angle compares the inquired downtilt angle with the saved normal downtilt angle.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101532097A CN1937803A (en) | 2006-09-06 | 2006-09-06 | Base station and its antenna downdip adjusting method |
| CN200610153209.7 | 2006-09-06 |
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| WO2008040143A1 true WO2008040143A1 (en) | 2008-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/CN2007/002597 WO2008040143A1 (en) | 2006-09-06 | 2007-08-29 | A base station and method for adjusting the down tilt angle of the antenna |
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| CN (1) | CN1937803A (en) |
| WO (1) | WO2008040143A1 (en) |
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| CN1937803A (en) | 2007-03-28 |
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