WO2010097030A1 - 小区分集模式切换指示及小区分集模式切换方法和装置 - Google Patents

小区分集模式切换指示及小区分集模式切换方法和装置 Download PDF

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Publication number
WO2010097030A1
WO2010097030A1 PCT/CN2010/070613 CN2010070613W WO2010097030A1 WO 2010097030 A1 WO2010097030 A1 WO 2010097030A1 CN 2010070613 W CN2010070613 W CN 2010070613W WO 2010097030 A1 WO2010097030 A1 WO 2010097030A1
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Prior art keywords
cell
diversity
diversity mode
indication
network controller
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PCT/CN2010/070613
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English (en)
French (fr)
Inventor
徐旭华
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华为技术有限公司
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Publication of WO2010097030A1 publication Critical patent/WO2010097030A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems

Definitions

  • the embodiments of the present invention relate to the field of communications technologies, and in particular, to a cell diversity mode switching indication and a cell diversity mode switching method and apparatus. Background technique
  • the Wideband Code Division Multiple Access (WCDMA) system adopts the diversity reception technology in the uplink, and actually uses the diversity technology in the downlink, which is called the downlink transmit diversity technology. Due to the harshness of the wireless communication environment, in mobile communication, the base station's transmitted signal often arrives at the receiving end of the mobile station after multiple reflections, scattering, and refraction, which easily causes multipath fading of the signal. In a fading environment, multi-antenna diversity techniques can effectively improve the performance of wireless communication systems.
  • the signal is transmitted through a plurality of spatially separated antennas to achieve spatial diversity.
  • the cell can be established as a transmit diversity mode, which can improve the receiving performance of the mobile terminal and increase the coverage of the cell, but since the transmit diversity configuration requires two power amplifiers, there are two The channel transmits data, so any one of the transmission channels will be damaged and the system performance will be reduced. Summary of the invention
  • the embodiment of the present invention provides a cell diversity mode switching indication method, including: detecting a cell transmission channel, and obtaining available information of the transmission channel; And transmitting, according to the available information, an indication message for instructing the radio network controller to perform cell diversity mode switching on the cell to the radio network controller.
  • the embodiment of the present invention provides a cell diversity mode switching method, including: receiving an indication message sent by a base station, where the indication message is used to instruct a radio network controller to perform cell diversity mode switching on a cell;
  • a cell that has undergone cell diversity mode switching is established according to the indication message.
  • an embodiment of the present invention provides a base station, including:
  • a detecting module configured to detect a cell transmission channel, and obtain available information of the transmitting channel
  • an indication module configured to send, according to the available information obtained by the detecting module, an indication message for instructing the radio network controller to perform cell diversity mode switching on the cell to the radio network controller.
  • an embodiment of the present invention provides a radio network controller, including:
  • a receiving module configured to receive an indication message sent by the base station, where the indication message is used to instruct the radio network controller to perform cell diversity mode switching on the cell;
  • a re-establishment module configured to establish, according to the indication information received by the receiving module, a cell that is switched by using a cell diversity mode.
  • an embodiment of the present invention provides a communication system including the foregoing base station and a wireless network controller.
  • the cell diversity mode switching indication and the cell diversity mode switching method and apparatus provided by the embodiments of the present invention by the cooperation of the base station and the radio network controller, the entire system can reduce manual intervention when the fault occurs, quickly recover the service, and greatly improve the transmit diversity cell. Reliability, improve system performance, and ensure communication quality.
  • FIG. 1 is a flowchart of Embodiment 1 of a cell diversity mode switching indication method according to the present invention
  • 2 is a flowchart of Embodiment 2 of a cell diversity mode switching indication method according to the present invention
  • FIG. 3 is a flowchart of Embodiment 1 of a cell diversity mode switching method according to the present invention
  • Embodiment 4 is a flowchart of Embodiment 2 of a method for switching a cell diversity mode according to the present invention
  • FIG. 5 is a schematic structural diagram of an embodiment of a base station according to the present invention.
  • FIG. 6 is a schematic structural diagram of an embodiment of a radio network controller according to the present invention.
  • FIG. 7 is a schematic structural diagram of an embodiment of a communication system according to the present invention. detailed description
  • a cell may be set to a transmit diversity mode, which may improve UE reception performance and increase cell coverage, but use a transmit diversity mode to establish a cell. If one of the two transmit channels fails, it will be severe. Affect system performance.
  • the WCDMA system is used as an example to provide a solution for switching the transmit diversity mode of the established cell according to the actual operation of the network device, thereby avoiding system performance degradation and improving communication reliability. It can be understood that the method and apparatus provided by the present invention can also be applied to other wireless systems, such as Global System For Mobile Communication (hereinafter referred to as GSM), Code Division Multiple Access (hereinafter referred to as Code Division Multiple Access; : CDMA) or radar communication.
  • GSM Global System For Mobile Communication
  • CDMA Code Division Multiple Access
  • the embodiment provides a cell diversity mode switching indication method, which includes a base station (NodeB) detecting a resource of a cell, for example, detecting all the links from the baseband data to the antenna port, including a baseband data source and a cell transmission channel.
  • the cell transmission channel is detected to obtain the available information of the transmission channel.
  • the base station sends, according to the available information, a radio network controller (Radio Network Controller; RNC) to indicate the radio network controller.
  • RNC Radio Network Controller
  • the indication message that the cell performs the cell diversity mode switching specifically, the NodeB detects the usage of the transmission channel of the cell, and obtains the available information of the actual use of the current transmission channel; if the usage status of the transmission channel is different from the diversity mode of the cell If the match is sent, the RNC sends an indication message to the RNC to change the diversity mode of the cell to adapt to the current use of the transmit channel, and improve the system. Performance, guarantee communication quality.
  • FIG. 1 is a flowchart of Embodiment 1 of a cell diversity mode switching indication method according to the present invention. As shown in FIG. 1 , the method includes:
  • Step 100 Perform detection on a transmit channel of the transmit diversity cell, and obtain available information of the transmit channel.
  • the current cell may be a transmit diversity cell, that is, the cell is established by the RNC according to the transmit diversity mode.
  • the NodeB detects the resource status of the current transmit diversity cell, and detects the two transmit channels of the transmit diversity cell.
  • the detection mode may be performed according to a predetermined period, or may be performed according to a predetermined time. If one of the two transmission channels corresponding to the transmitting diversity cell fails to work normally, the other transmitting channel can still complete the data. Transfer.
  • Step 101 Send, to the radio network controller, an indication message for instructing the radio network controller to perform cell diversity mode switching on the transmit diversity cell, where the indication message includes indication information that does not support the transmit diversity mode.
  • the NodeB will initiate a handover procedure for the cell diversity mode to switch from the transmit diversity mode to the transmit diversity mode to the RNC, that is, send an indication message to the RNC, and the indication message is used to instruct the RNC to perform cell diversity on the transmit diversity cell.
  • Mode switching that is, instructing the RNC to re-establish a cell in which the application is set up in a non-diversity mode.
  • the indication message is used to notify the RNC cell that the current diversity capability has changed.
  • the NodeB in the indication message carries the indication information that the base station does not support the transmit diversity mode, and is used to instruct the RNC to re-establish the cell according to the transmit diversity mode.
  • the transmit power of the transmit channel corresponding to the non-diversity cell may be set according to the maximum power information corresponding to the transmit channel currently used by the transmit diversity cell, where the maximum power information may be reported by the base station to the ReNB when the base station sends the indication message to the RNC. RNC.
  • Step 200 Perform detection on a transmit channel of a non-diversity cell, and obtain available information of the transmit channel.
  • the NodeB performs the detection of the cell resource according to the set periodicity or the timing of the re-established non-diversity cell. If the two transmission channels of the non-diversity cell are known to be available, the fault channel of the NodeB is repaired. Both transmit channels can be used to transmit data.
  • Step 201 Send, to the radio network controller, an indication message, used to instruct the radio network controller to perform cell diversity mode switching on the transmit diversity mode, where the indication message includes indication information that supports a transmit diversity mode.
  • the NodeB After the NodeB learns that the two transmission channels corresponding to the non-diversity cell are available, the NodeB will initiate a handover procedure for the cell diversity mode to switch from the non-diversity mode to the transmit diversity mode, that is, send an indication message to the RNC, and the indication message is sent to the RNC. It is used to instruct the RNC to perform cell diversity mode switching on the non-diversity cell, that is, instruct the RNC to re-establish a cell in which the application transmit diversity mode is established.
  • the indication message sent by the NodeB to the RNC carries the indication information that the base station supports the transmit diversity mode, and the RNC can re-establish a transmit diversity cell according to the information.
  • the transmit power of the two transmit channels corresponding to the transmit diversity cell may be set according to the predetermined configuration power information, and the power information may also be reported by the base station to the RNC while the base station sends the indication message to the RNC.
  • the NodeB sends an indication message to the RNC to instruct the RNC to perform the handover of the cell diversity mode
  • the indication message may be an NB AP (NodeB Application Part) signaling message, such as an audit response message (AUDIT RESPONSE), and
  • NB AP NodeB Application Part
  • AUDIT RESPONSE an audit response message
  • the diversity capability information of the cell is added in the audit response message, and of course, other BAP signaling messages can be modified to achieve this purpose.
  • the IUB standard interface cannot report the change of the diversity capability. You can modify the IUB standard interface, such as the audit response interface. The modification method is shown in Table 1.
  • IE/Group Name indicates the cell name
  • Presence indicates whether the cell is optional
  • 0 indicates optional
  • IE Type and Reference indicates the cell type reference.
  • the NodeB when the one channel of the cell is faulty, the NodeB sends an indication message to the RNC to instruct the RNC to switch the cell from the transmit diversity to the non-diversity set; and when the channel failure of the cell is restored, , the RNC may be instructed to restore the cell to use for transmit diversity.
  • the reliability of the transmit diversity cell can be greatly provided, and the reliability is reduced due to the increase of the cell device such as the power amplifier, the system performance is improved, and the communication quality is ensured.
  • the embodiment of the present invention further provides a cell diversity mode switching method, where the RNC receives an indication message that is sent by the base station to indicate that the RNC performs cell diversity mode switching on the cell, and re-establishes the cell that is switched by the cell diversity mode according to the indication message. .
  • the RNC After receiving the indication message sent by the NodeB, the RNC performs cell reconstruction according to the diversity capability information of the cell carried in the indication message, so that the cell mode is adapted to the hardware condition of the base station, and the system performance is improved.
  • FIG. 3 is a flowchart of Embodiment 1 of a cell diversity mode switching method according to the present invention. As shown in FIG. 3, the method includes:
  • Step 300 Receive an indication message that is sent by the base station to instruct the radio network controller to perform cell diversity mode switching on the transmit diversity cell, where the indication message includes indication information that does not support the diversity mode.
  • the NodeB When the NodeB performs periodic or timing detection on the transmit diversity cell, it is known that one of the two transmit channels corresponding to the transmit diversity cell cannot be used normally due to the base station failure, and the other one can still be used. And transmitting, to the RNC, an indication message for instructing the RNC to perform cell diversity mode switching on the transmit diversity cell, where the indication message includes indication information that the base station does not support the diversity mode.
  • the maximum power information corresponding to the one of the transmit channels currently used by the transmit diversity cell may be further sent to the RNC for use by the RNC to establish a non-diversity cell.
  • Step 301 After deleting the sending diversity cell according to the indication information that does not support the diversity mode, establishing a non-diversity cell.
  • the RNC may perform a handover process in which the cell diversity mode is switched from the transmit diversity mode to the transmit diversity mode. Specifically, the RNC may find that the cell diversity capability in the operation changes, that is, the transmit diversity is changed to the transmit diversity. Then, the currently existing transmit diversity cell is deleted, and the cell is re-established in the non-diversity mode, and the maximum power of the built cell can be processed according to the maximum power reported by the NodeB.
  • the RNC may automatically perform a cell mode switching procedure according to the setting, that is, automatically deleting the transmitting diversity cell according to the indication information that does not support the diversity mode, and automatically establishing a non-diversity set according to the maximum power information.
  • the automatic switching or recovery can be determined according to the user configuration, and the flexibility of the post-system fault processing is provided.
  • the user is configured to perform fault processing according to the operator's operation instruction, for example, after receiving the indication message.
  • the fault recovery that is, after receiving the handover operation command, the RNC deletes the transmit diversity cell according to the indication information that does not support the diversity mode, and establishes a non-diversity cell according to the maximum power information.
  • FIG. 4 is a flowchart of Embodiment 2 of a cell diversity mode switching method according to the present invention. As shown in FIG. 4, the method includes:
  • Step 400 Receive an indication message that is sent by the base station to instruct the radio network controller to perform cell diversity mode switching on the non-diversity cell, where the indication message includes indication information that supports a diversity mode.
  • the NodeB After the RNC reconstructs a non-diversity cell according to the indication message of the NodeB, the NodeB can also perform cell resource detection on the non-diversity cell according to the set periodicity or timing. When the NodeB fault is repaired, both the transmission channels can be used. Sending to the RNC to indicate that the RNC is not involved The indication message that the cell performs the cell diversity mode switching, and the indication message includes indication information that the base station supports the diversity mode.
  • Step 401 After deleting the non-diversity cell according to the indication information of the support diversity mode, establish a transmit diversity cell.
  • the RNC may perform a handover process in which the cell diversity mode is switched from the non-diversity mode to the transmit diversity mode. Specifically, the RNC finds that the cell diversity capability in the operation changes, that is, the transmission does not divide into a transmit diversity. Then, the currently existing non-diversity cell is deleted, and the cell is re-established according to the transmit diversity mode, and the transmit power of the built-in diversity cell can be set according to the predetermined configuration power information, wherein the power information can also be sent by the base station to the RNC while the indication message is sent by the base station. Reported to the RNC.
  • the RNC may automatically perform a cell mode switching procedure according to the setting, that is, automatically delete the non-diversity cell according to the indication information of the support diversity mode, and automatically establish the transmit diversity according to the predetermined configuration power information.
  • Cell or considering the stability of the service, automatic switching or recovery can be determined according to the user configuration, whether to automatically do, to provide flexibility after the system failure, by the user configuration, for example, after receiving the indication message, according to the operator's operation instructions Fault processing and fault recovery, that is, after receiving the handover operation instruction, deleting the non-diversity cell according to the indication information supporting the diversity mode, and establishing a transmission diversity cell according to the predetermined configuration power information.
  • the method for switching the cell diversity mode can automatically switch from the transmit diversity to the transmit/disaggregate when the channel of the cell is faulty, and can automatically resume the use of the transmit diversity after the channel fault of the cell is restored.
  • Fast recovery of services and reduction of manual intervention can greatly improve the reliability of the transmit diversity cell and avoid reliability degradation due to the increase of cell devices such as power amplifiers.
  • the coverage of the common channel can be reduced, the transmission data rate on the HSDPA channel can be improved, the power of the dedicated channel can be improved, and the system load can be reduced.
  • the newly activated mobile terminal is synchronized with the cell, which facilitates the residence and access of the mobile terminal.
  • the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk or an optical disk.
  • FIG. 5 is a schematic structural diagram of an embodiment of a base station according to the present invention.
  • the base station includes a detection module 11 and an indication module 12, where the detection module 11 is configured to detect a cell transmission channel, and obtain available information of the transmission channel.
  • the indication module 12 sends an indication message for instructing the radio network controller to perform cell diversity mode switching on the cell according to the available information obtained by the detection module 11 to the radio network controller.
  • the detecting module 11 in the base station detects the resources of the cell, for example, detects the usage of the transmitting channel of the cell, and obtains the available information of the actual use of the current transmitting channel; if the usage status of the transmitting channel and the diversity mode of the cell If the matching does not match, the indication module 12 sends an indication message to the RNC, instructing the RNC to change the diversity mode of the cell to adapt to the current usage status of the transmission channel, improve system performance, and ensure communication quality.
  • the indication module 12 may send a different indication message to the RNC according to the actual situation, and instruct the RNC to switch the diversity mode of the cell, and accordingly, the indication module 12 includes the first indication submodule 121 and/or the second indication submodule 122.
  • the following corresponding functions are respectively implemented, and the following may be as follows:
  • the first indication sub-module 121 is configured to learn, according to the available information of the transmission channel detected by the detection module 11, that one of the transmission channels corresponding to the transmit diversity cell is unavailable, and then send an indication to the RNC to indicate the RNC.
  • an indication message that performs cell diversity mode switching on the transmit diversity cell, where the indication message includes indication information that does not support the transmit diversity mode.
  • the base station completes the indication by the first indication sub-module 121 that the RNC switches the diversity mode of the cell from the transmit diversity mode to the transmit diversity mode.
  • the second indication sub-module 122 is configured to: if the two-way transmission channel corresponding to the non-diversity cell is available, according to the available information of the transmission channel detected by the detection module 11, send the RNC to the RNC to instruct the RNC to perform the non-diversity cell
  • the indication message of the small diversity mode switching, the indication message includes indication information supporting the transmission diversity mode.
  • the base station completes by the second indication sub-module 122 to instruct the RNC to switch the diversity mode of the cell from the transmit-non-diversity mode to the transmit-diversity mode.
  • the first indicator sub-module 121 is further configured to send, to the RNC, maximum power information corresponding to the currently used transmit channel of the cell, for the RNC to re-establish the cell.
  • the base station provided by the embodiment may be configured to: when the cell is faulty, the RNC sends an indication message to the RNC to indicate that the RNC switches the cell from the transmit diversity to the transmit and receive diversity; and when the channel fault of the cell recovers, the RNC may be indicated.
  • the cell is restored to the transmit diversity. In this way, the reliability of the transmit diversity cell can be greatly improved, and the reliability is reduced due to the increase of the cell device such as the power amplifier, the system performance is improved, and the communication quality is ensured.
  • FIG. 6 is a schematic structural diagram of an embodiment of a radio network controller according to the present invention.
  • the radio network controller includes a receiving module 21 and a reestablishing module 22, where the receiving module 21 is configured to receive an indication message sent by the base station, where the indication is The message is used to indicate that the radio network controller performs cell diversity mode switching on the cell.
  • the re-establishment module 22 re-establishes the cell that has undergone cell diversity mode switching according to the indication information received by the receiving module 21.
  • the reconstruction module 22 After the receiving module 21 in the RNC receives the indication message sent by the NodeB, the reconstruction module 22 performs cell reconstruction according to the diversity capability information of the cell carried in the indication message sent by the receiving module 21, so that the cell mode is compatible with the hardware condition of the base station. Improve system performance.
  • the re-establishment module 22 may perform the cell diversity mode switching according to the actual situation, that is, according to the different indication content in the indication message, and accordingly, the first reconstruction sub-module 221 and/or the second reconstruction sub-module 222 included in the reconstruction module 22 respectively Complete the following corresponding functions, as follows:
  • the indication message received by the receiving module 21 is an indication message for instructing the RNC to perform cell diversity mode switching on the current transmit diversity cell, where the indication message includes indication information that does not support the diversity mode
  • the first reconstruction submodule 221 according to the The indication information of the diversity mode is deleted, and the current transmit diversity cell is deleted, and then the non-diversity cell is established, and the transmit power of the transmit channel that generates the non-diversity cell can be set according to the maximum power information corresponding to the currently used transmit channel of the diversity cell, where The maximum power information may be reported by the base station to the RNC while the base station sends the indication message to the RNC.
  • the RNC completes the handover of the diversity mode of the cell from the transmit diversity mode to the transmit diversity mode through the first reconstruction submodule.
  • the indication message received by the receiving module 21 is used to indicate that the RNC sends a non-diversity cell to the current
  • the indication message of the cell diversity mode switching is performed, where the indication message includes the indication information of the support diversity mode, and the second reconstruction sub-module 222 deletes the current non-diversity cell according to the indication information of the support diversity mode, and establishes a transmission diversity cell.
  • the transmit power of the diversity cell is processed according to the predetermined configuration power information, and the power information may also be reported by the base station to the RNC while the base station sends the indication message to the RNC.
  • the RNC completes the handover of the diversity mode of the cell from the non-diversity mode to the transmit diversity mode by using the second re-establishment sub-module.
  • the foregoing first re-establishment sub-module 221 and/or the second re-establishment sub-module 222 may automatically perform cell diversity mode switching after receiving the indication message sent by the NodeB, or may perform cell diversity mode after receiving the operation instruction. Switching makes the system operation more flexible.
  • the radio network controller provided by the embodiment of the present invention can automatically switch from the transmit diversity to the transmit/disaggregate according to the indication of the base station when the channel of the cell is faulty, and can automatically recover after the channel fault of the cell is restored.
  • the use of diversity generation, fast recovery of services, and reduction of manual intervention can greatly improve the reliability of the transmit diversity cell and avoid reliability degradation due to the increase of cell devices such as power amplifiers.
  • FIG. 7 is a schematic structural diagram of an embodiment of a communication system according to the present invention.
  • the communication system includes a base station 1 and a radio network controller 2, where the base station 1 is configured to detect a cell transmission channel to obtain available information of the transmission channel. And sending, to the radio network controller 2, an indication message for instructing the radio network controller 2 to perform cell diversity mode switching on the cell according to the available information; the radio network controller 2 is configured to receive, by the base station 1, for indicating the wireless network. The controller 2 performs an indication message of cell diversity mode switching on the cell, and re-establishes the cell according to the indication information.
  • the base station and the radio network controller involved in the communication system provided in this embodiment may use the base station and the radio network controller provided in the foregoing embodiments, and details are not described herein again.
  • the base station when detecting a channel failure of the cell, the base station sends an indication message to the RNC to instruct the RNC to switch the cell from the transmit diversity to the transmit and receive diversity, and the radio network controller constructs according to the indication of the base station.
  • the cell is switched from the transmit diversity to the transmit diversity.
  • the base station can instruct the RNC to restore the cell to the transmit diversity
  • the line network controller can restore the cell to transmit diversity according to the indication of the base station.

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Description

小区分集模式切换指示及小区分集模式切换方法和装置 本申请要求于 2009 年 2 月 26 日提交中国专利局、 申请号为 200910078372.5、发明名称为"小区分集模式切换指示及小区分集模式切换 方法和装置"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
本发明实施例涉及通信技术领域， 尤其涉及一种小区分集模式切换指 示及小区分集模式切换方法和装置。 背景技术
宽带码分多址 (Wideband Code Division Multiple Access; 以下简称： WCDMA)系统中在上行采用了分集接收技术，实际上在下行也采用了分集 技术即称为下行发射分集技术。由于无线传播环境的恶劣，在移动通信中， 基站的发射信号往往是经过多次反射、散射和折射才到达移动台的接收端 的， 这样很容易就造成了信号的多径衰落。 在衰落环境中， 多天线分集技 术可以有效地改善无线通信系统的性能。信号通过多个空间上分开足够远 的天线发射出去， 实现空间分集。
现有技术中， 由于在 WCDMA 系统中应用发射分集技术， 小区可以 建立为发分集模式， 这样可以提高移动终端接收性能以及增加小区覆盖范 围， 但由于发分集配置需要有两个功率放大器， 存在两路通道发射数据， 因此任何一路发射通道发生损坏， 系统性能将降低。 发明内容
一方面， 本发明实施例提供一种小区分集模式切换指示方法， 包括： 对小区发射通道进行检测， 获得所述发射通道的可用信息； 根据所述可用信息向无线网络控制器发送用于指示所述无线网络控制器 对所述小区进行小区分集模式切换的指示消息。
又一方面， 本发明实施例提供一种小区分集模式切换方法， 包括： 接收基站发送的指示消息， 所述指示消息用于指示无线网络控制器对小 区进行小区分集模式切换；
根据所述指示消息建立经过小区分集模式切换的小区。
另一方面， 本发明实施例提供一种基站， 包括：
检测模块， 用于对小区发射通道进行检测， 获得所述发射通道的可用信 息；
指示模块， 用于根据所述检测模块获得的可用信息向无线网络控制器发 送用于指示所述无线网络控制器对所述小区进行小区分集模式切换的指示消 息。
另一方面， 本发明实施例提供一种无线网络控制器， 包括：
接收模块， 用于接收基站发送的指示消息， 所述指示消息用于指示无线 网络控制器对小区进行小区分集模式切换；
重建模块， 用于根据所述接收模块接收的指示信息建立经过小区分集模 式切换的小区。
另一方面本发明实施例提供一种通信系统， 包括上述基站和无线网络控 制器。
本发明实施例提供的小区分集模式切换指示及小区分集模式切换方法 和装置， 通过基站与无线网络控制器的配合， 整个系统在出现故障时可以减 少人工干预， 快速恢复业务， 大大提高发分集小区的可靠性， 提高系统性能， 保证通信质量。 附图说明
图 1为本发明小区分集模式切换指示方法实施例一流程图； 图 2为本发明小区分集模式切换指示方法实施例二流程图； 图 3为本发明小区分集模式切换方法实施例一流程图；
图 4为本发明小区分集模式切换方法实施例二流程图；
图 5为本发明基站实施例结构示意图；
图 6为本发明无线网络控制器实施例结构示意图；
图 7为本发明通信系统实施例结构示意图。 具体实施方式
下面结合附图和具体实施例进一步说明本发明实施例的技术方案。
在现有通信系统中， 小区可以建立为发分集模式， 这样可以提高 UE接 收性能以及增加小区覆盖范围， 但应用发分集模式建立小区， 若两条发射通 道中的其中一路发生故障， 则将严重影响系统性能。 本发明各实施例以 WCDMA系统为例提供一种根据网络设备实际运行情况， 按需对建立的小区 的发分集模式进行切换， 避免系统性能降低， 提高通信可靠性的解决方案。 可以理解的是， 本发明提供的方法和装置也可以应用于其它无线系统中， 例 如全球移动通信 (Global System For Mobile Communication; 以下简称： GSM)、 码分多址 (Code Division Multiple Access; 以下简称： CDMA)或雷达通讯等。
本实施例提供一种小区分集模式切换指示方法， 包括基站 （NodeB )对 小区的资源进行检测， 如对从基带数据一直到天线口的各个环节进行检测， 包括基带数据源和小区发射通道等。 本实施例中涉及对小区发射通道进行检 测， 获得发射通道的可用信息； 基站根据可用信息向无线网络控制器（Radio Network Controller; 以下简称： RNC)发送用于指示所述无线网络控制器对 所述小区进行小区分集模式切换的指示消息， 具体地， NodeB对小区的发射 通道的使用情况进行检测， 得到当前发射通道的实际使用的可用信息； 若发 射通道的使用状况与小区的分集模式不相匹配， 则向 RNC发送指示消息， 指 示 RNC改变该小区的分集模式使其适应当前发射通道的使用状况，提高系统 性能， 保证通信质量。
图 1为本发明小区分集模式切换指示方法实施例一流程图，如图 1所示， 该方法包括：
步骤 100， 对发分集小区发射通道进行检测， 获得所述发射通道的可用 信息；
本实施例中， 当前小区可以为发分集小区， 即该小区是 RNC按照发分集 模式建立的。 NodeB检测当前发分集小区的资源状况， 对发分集小区的两条 发射通道进行检测， 检测方式可以是按照预定的周期进行， 也可以是按照预 定时间进行等。 若通过检测发现有其中一路发射通道故障， 但另一条发射通 道可用， 也就是说对应于发分集小区的两条发射通道中的一条已经因故障无 法正常工作， 但另一条发射通道仍能够完成数据传送。
步骤 101 , 向所述无线网络控制器发送用于指示所述无线网络控制器对 所述发分集小区进行小区分集模式切换的指示消息， 所述指示消息包括不支 持发分集模式的指示信息。
在此种情况下， NodeB将向 RNC发起小区分集模式从发分集模式切换到 发不分集模式的切换流程， 即向 RNC 发送指示消息， 该指示消息用于指示 RNC对该发分集小区进行小区分集模式切换， 即指示 RNC重新建立一个应 用发不分集模式建立的小区。要通过该指示消息通知 RNC小区当前分集能力 发生变化。 具体地， NodeB在指示消息中携带基站不支持发分集模式的指示 信息用于指示 RNC按照发不分集模式重新建立小区。发不分集小区对应的发 射通道的发射功率可以根据发分集小区当前所用的发射通道对应的最大功率 信息而设置，其中所述最大功率信息可以是在基站向 RNC发送指示消息的同 时由基站上报给 RNC的。
图 2 为本发明小区分集模式切换指示方法实施例二流程图， RNC 根据 NodeB的不支持发分集模式的指示信息重建一个发不分集小区后， 对该发不 分集小区进行检测， 保证业务稳定性， 如图 2所示， 该方法包括： 步骤 200, 对发不分集小区发射通道进行检测， 获得所述发射通道的可 用信息；
NodeB对重新建立的发不分集小区也根据设定周期性或定时性进行该小 区资源的检测， 若通过检测获知该发不分集小区的两路发射通道均可用， 即 NodeB的故障通道得到修复， 两路发射通道均可用来传送数据。
步骤 201 , 向所述无线网络控制器发送用于指示所述无线网络控制器对 所述发不分集小区进行小区分集模式切换的指示消息， 所述指示消息包括支 持发分集模式的指示信息。
NodeB根据可用信息获知发不分集小区对应的两路发射通道均可用后， 将向 RNC发起小区分集模式从发不分集模式切换到发分集模式的切换流程， 即向 RNC发送指示消息， 该指示消息用于指示 RNC对该发不分集小区进行 小区分集模式切换， 即指示 RNC重新建立一个应用发分集模式建立的小区。 NodeB 向 RNC发送的指示消息中携带有基站支持发分集模式的指示信息， RNC可以根据该信息重新建立一个发分集小区。 对于发分集小区对应的两条 发射通道的发射功率可以按预定配置功率信息设置， 其中功率信息也可以在 基站向 RNC发送指示消息的同时由基站上报给 RNC：。
上述实施例中， NodeB向 RNC发送指示消息指示 RNC进行小区分集模 式的切换， 指示消息可以是 NB AP ( NodeB Application Part, 基站应用部分协 议）信令消息例如审计响应消息（ AUDIT RESPONSE ) 中， 并在审计响应消 息中增加小区的分集能力信息， 当然也可以通过修改其它 BAP信令消息来 达到此目的。 目前 IUB标准接口上无法上报分集能力的变化， 可以对 IUB标 准接口如审计响应接口进行修改， 修改方式如表 1所示。
表 1
Figure imgf000007_0001
τχ 0 ENUM(E ENABLE― YES ignore
Diversity NABLE， 支持发射分
Capability DISABLE) 集模式
DISABLE
一不支持发
射分集模式
上表中, "IE/Group Name" 表示信元名称, "Presence" 表示该信元是 否为可选， "0" 表示可选； "IE Type and Reference " 表示信元类型参考，
"Semantics Description " 信元取值说明。
本实施例提供的小区分集模式切换指示方法， 可以当小区的一路通道故 障时， NodeB通过向 RNC发送指示消息指示 RNC将小区由发分集切换为发不 分集使用； 而当小区的通道故障恢复后， 可以指示 RNC将小区再恢复为发分 集使用。 这样， 可以大大提供发分集小区的可靠性， 避免由于小区器件例如 功放的增加导致可靠性降低， 提高系统性能， 保证通信质量。
本发明实施例还提供一种小区分集模式切换方法， 包括 RNC接收基站发 送的、 用于指示 RNC对小区进行小区分集模式切换的指示消息， 并根据该指 示消息重新建立经过小区分集模式切换的小区。 RNC接收 NodeB发送的指示 消息后， 根据该指示消息中携带的小区的分集能力信息进行小区的重建， 使 得小区模式与基站硬件条件相适应， 提高系统性能。
图 3为本发明小区分集模式切换方法实施例一流程图， 如图 3所示， 该方 法包括：
步驟 300, 接收基站发送的、 用于指示无线网络控制器对发分集小区进 行小区分集模式切换的指示消息， 所述指示消息包括不支持分集模式的指示 信息；
当 NodeB通过对发分集小区进行周期或定时检测而获知发分集小区对应 的两条发射通道中一条因基站故障而无法正常使用， 而另一条仍可以使用， 则向 RNC发送用于指示 RNC对发分集小区进行小区分集模式切换的指示消 息， 该指示消息包括基站不支持分集模式的指示信息。 也可以进一步向 RNC 发送该发分集小区当前所用的那一条发射通道对应的最大功率信息， 用于 RNC建立发不分集小区所用。
步骤 301 , 根据所述不支持分集模式的指示信息删除所述发分集小区后， 建立发不分集小区。
RNC接收该指示消息后， 可以进行小区分集模式从发分集模式切换到发 不分集模式的切换流程， 具体可以为， RNC发现运行中的小区分集能力发生 变化， 即由发分集变为发不分集， 则删除当前存在的发分集小区， 重新按发 不分集模式建立小区， 所建小区的最大功率可以按 NodeB上报的最大功率处 理。
本实施例中， RNC在接收到指示消息后， 可以根据设定自动进行小区模 式切换流程， 即根据不支持分集模式的指示信息自动删除发分集小区后， 并 根据最大功率信息自动建立发不分集小区。 考虑到业务的稳定性， 自动切换 或恢复可以根据用户配置决定是否自动做， 提供系统故障后处理的灵活性， 由用户配置例如在接收到指示消息后要根据操作员的操作指示进行故障处理 及故障恢复， 即 RNC在接收到切换操作指令后， 根据不支持分集模式的指示 信息删除该发分集小区后， 并根据最大功率信息建立发不分集小区。
图 4为本发明小区分集模式切换方法实施例二流程图， 如图 4所示， 该方 法包括：
步骤 400， 接收基站发送的、 用于指示无线网络控制器对所述发不分集 小区进行小区分集模式切换的指示消息， 所述指示消息包括支持分集模式的 指示信息；
RNC在根据 NodeB的指示消息重建一个发不分集小区后， NodeB还可以根 据设定周期性或定时对该发不分集小区进行小区资源检测， 当 NodeB故障得 到修复， 两条发射通道都可以使用时， 则向 RNC发送用于指示 RNC对发不分 集小区进行小区分集模式切换的指示消息， 该指示消息包括基站支持分集模 式的指示信息。
步骤 401 , 根据所述支持分集模式的指示信息删除所述发不分集小区后， 建立发分集小区。
RNC接收该指示消息后， 可以进行小区分集模式从发不分集模式切换到 发分集模式的切换流程， 具体为， RNC发现运行中的小区分集能力发生变化， 即由发不分集变为发分集， 则删除当前存在的发不分集小区， 重新按发分集 模式建立小区， 所建发分集小区的发射功率可以按预定配置功率信息设置， 其中功率信息也可以在基站向 RNC发送指示消息的同时由基站上报给 RNC 的。
本实施例中， RNC在接收到指示消息后， 可以根据设定自动进行小区模 式切换流程， 即根据支持分集模式的指示信息自动删除发不分集小区后， 并 根据预定配置功率信息自动建立发分集小区； 或考虑到业务的稳定性， 自动 切换或恢复可以根据用户配置决定是否自动做， 提供系统故障后处理的灵活 性， 由用户配置例如在接收到指示消息后要根据操作员的操作指示进行故障 处理及故障恢复， 即在接收到切换操作指令后， 根据支持分集模式的指示信 息删除发不分集小区后， 并根据预定配置功率信息建立发分集小区。
本发明实施例提供的小区分集模式切换方法， 可以当小区的一路通道故 障时， 自动由发分集切换为发不分集使用， 而当小区的通道故障恢复后， 也 能自动恢复为发分集使用， 快速恢复业务， 减少人工干预， 可以大大提高发 分集小区的可靠性， 避免由于小区器件例如功放的增加导致可靠性降低。 并 且可以避免公共信道覆盖范围的縮小， 提高 HSDPA信道上的发射数据速率， 提升专用信道的功率， 降低系统负载； 保证新开机的移动终端与小区同步， 便于移动终端的驻留和接入。
本领域普通技术人员可以理解： 实现上述方法实施例的全部或部分步骤 可以通过程序指令相关的硬件来完成， 前述的程序可以存储于一计算机可读 取存储介质中， 该程序在执行时， 执行包括上述方法实施例的步骤； 而前述 的存储介质包括： ROM, RAM, 磁碟或者光盘等各种可以存储程序代码的介 质。
图 5为本发明基站实施例结构示意图， 如图 5所示， 该基站包括检测模 块 11和指示模块 12, 其中检测模块 11用于对小区发射通道进行检测， 获得 所述发射通道的可用信息； 指示模块 12根据检测模块 11获得的可用信息向 无线网络控制器发送用于指示无线网络控制器对该小区进行小区分集模式切 换的指示消息。
具体地， 基站中的检测模块 11对小区的资源进行检测， 例如对小区的发 射通道的使用情况进行检测， 得到当前发射通道的实际使用的可用信息； 若 发射通道的使用状况与小区的分集模式不相匹配，则通过指示模块 12给 RNC 发送指示消息，指示 RNC改变该小区的分集模式使其适应当前发射通道的使 用状况， 提高系统性能， 保证通信质量。
进一步地，指示模块 12可以根据实际情况向 RNC发送不同的指示消息， 指示 RNC对小区的分集模式进行切换， 相应地指示模块 12中包括第一指示 子模块 121和 /或第二指示子模块 122分别完成以下相应功能，具体可以如下： 第一指示子模块 121用于根据检测模块 11检测得到的发射通道的可用信 息获知发分集小区对应的一路发射通道不可用，则向 RNC发送用于指示 RNC 对该发分集小区进行小区分集模式切换的指示消息， 指示消息包括不支持发 分集模式的指示信息。基站通过第一指示子模块 121完成指示 RNC将小区的 分集模式从发分集模式切换到发不分集模式。
第二指示子模块 122用于若根据检测模块 11检测得到的发射通道的可用 信息获知发不分集小区对应的两路发射通道均可用，则向 RNC发送用于指示 RNC对该发不分集小区进行小区分集模式切换的指示消息， 所述指示消息包 括支持发分集模式的指示信息。 基站通过第二指示子模块 122完成指示 RNC 将小区的分集模式从发不分集模式切换到发分集模式。 上述实施例中，第一指示子模块 121还可以用于向 RNC发送所述小区当 前所用的发射通道对应的最大功率信息， 供 RNC重建小区用。
本实施例提供的基站，可以在检测出小区的一路通道故障时，通过向 RNC 发送指示消息指示 RNC将小区由发分集切换为发不分集使用； 而当小区的通 道故障恢复后， 可以指示 RNC将小区再恢复为发分集使用。 这样， 可以大大 提高发分集小区的可靠性， 避免由于小区器件例如功放的增加导致可靠性降 低， 提高系统性能， 保证通信质量。
图 6为本发明无线网络控制器实施例结构示意图， 如图 6所示， 该无线网 络控制器包括接收模块 21和重建模块 22 , 其中接收模块 21用于接收基站发送 的指示消息， 所述指示消息用于指示无线网络控制器对小区进行小区分集模 式切换； 重建模块 22根据接收模块 21接收的指示信息重新建立经过小区分集 模式切换的小区。 RNC中的接收模块 21接收到 NodeB发送的指示消息后， 重 建模块 22根据接收模块 21发来的指示消息中携带的小区的分集能力信息进行 小区的重建， 使得小区模式与基站硬件条件相适应， 提高系统性能。
进一步地，重建模块 22可以根据实际情况即根据指示消息中不同的指示 内容进行小区分集模式的切换，相应地重建模块 22中包括的第一重建子模块 221和 /或第二重建子模块 222分别完成以下相应功能， 具体如下：
若接收模块 21接收的指示消息为用于指示 RNC对当前的发分集小区进 行小区分集模式切换的指示消息， 该指示消息包括不支持分集模式的指示信 息， 则第一重建子模块 221根据该不支持分集模式的指示信息删除当前的发 分集小区， 然后建立发不分集小区， 建立发不分集小区的发射通道的发射功 率可以根据分集小区当前所用的发射通道对应的最大功率信息而设置， 其中 所述最大功率信息可以在基站向 RNC 发送指示消息的同时由基站上报给 RNC的。 RNC通过第一重建子模块完成将小区的分集模式从发分集模式到发 不分集模式的切换。
若接收模块 21接收的指示消息为用于指示 RNC对当前的发不分集小区 进行小区分集模式切换的指示消息， 该指示消息包括支持分集模式的指示信 息， 则第二重建子模块 222根据支持分集模式的指示信息删除当前发不分集 小区后， 建立发分集小区， 所建发分集小区的发射功率按预定配置功率信息 处理，其中功率信息也可以在基站向 RNC发送指示消息的同时由基站上报给 RNC。 RNC通过第二重建子模块完成将小区的分集模式从发不分集模式到发 分集模式的切换。
上述的第一重建子模块 221 和 /或第二重建子模块 222 可以是在接收到 NodeB发送的指示消息后自动进行小区分集模式的切换， 也可以是在接收操 作指令后再进行小区分集模式的切换 , 使得系统操作更加灵活。
本发明实施例提供的无线网络控制器， 可以在小区的一路通道故障时， 根据基站的指示能自动由发分集切换为发不分集使用， 而当小区的通道故障 恢复后， 也能自动恢复为发分集使用， 快速恢复业务， 减少人工干预， 可以 大大提高发分集小区的可靠性， 避免由于小区器件例如功放的增加导致可靠 性降低。
图 7为本发明通信系统实施例结构示意图， 如图 7所示， 该通信系统包 括基站 1和无线网络控制器 2, 其中基站 1用于对小区发射通道进行检测获 得所述发射通道的可用信息， 并根据可用信息向无线网络控制器 2发送用于 指示无线网络控制器 2对该小区进行小区分集模式切换的指示消息； 无线网 络控制器 2用于接收基站 1发送的、 用于指示无线网络控制器 2对小区进行 小区分集模式切换的指示消息， 根据该指示信息重新建立小区。
本实施例提供的通信系统中涉及的基站和无线网絡控制器， 均可以采用 上述各实施例提供的基站和无线网络控制器， 此处不再赘述。
本实施例提供的通信系统， 基站在检测出小区的一路通道故障时， 通过 向 RNC发送指示消息指示 RNC将小区由发分集切换为发不分集使用， 无线 网络控制器根据基站的指示将所建小区由发分集切换为发不分集使用； 而当 小区的通道故障恢复后， 基站可以指示 RNC将小区再恢复为发分集使用， 无 线网络控制器可以根据基站指示将小区恢复为发分集使用。 通过基站与无线 网络控制器的配合， 系统在出现故障时可以减少人工干预， 快速恢复业务， 可以大大提供发分集小区的可靠性， 提高系统性能， 保证通信质量。
本发明实施例中所提及的序号用于使描述更为清楚， 并不标识方案的 优劣。 最后应说明的是： 以上实施例仅用以说明本发明的技术方案， 而非 对其限制； 尽管参照前述实施例对本发明进行了详细的说明， 本领域的普 通技术人员应当理解： 其依然可以对前述各实施例所记载的技术方案进行 修改， 或者对其中部分技术特征进行等同替换； 而这些修改或者替换， 并 不使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims

权 利 要 求 书
1、 一种小区分集模式切换指示方法， 其特征在于， 包括：
对小区发射通道进行检测， 获得所述发射通道的可用信息；
根据所述可用信息向无线网絡控制器发送用于指示所述无线网络控制器 对所述小区进行小区分集模式切换的指示消息。
2、 根据权利要求 1所述的小区分集模式切换指示方法， 其特征在于， 所 述根据所述可用信息向无线网络控制器发送用于指示所述无线网络控制器对 所述小区进行小区分集模式切换的指示消息包括：
若根据所述可用信息获知发分集小区对应的一路发射通道不可用， 则向 所述无线网络控制器发送用于指示所述无线网络控制器对所述发分集小区进 行小区分集模式切换的指示消息， 所述指示消息包括不支持发分集模式的指 示信息； 或
若 #居所述可用信息获知发不分集小区对应的两路发射通道均可用， 则 向所述无线网络控制器发送用于指示所述无线网络控制器对所述发不分集小 区进行小区分集模式切换的指示消息， 所述指示消息包括支持发分集模式的 指示信息。
3、根据权利要求 1或 2所述的小区分集模式切换指示方法，其特征在于， 所述对小区发射通道进行检测包括：
按照预定周期对小区发射通道进行检测； 或
按照预定时间对小区发射通道进行检测。
4、 根据权利要求 1所述的小区分集模式切换指示方法， 其特征在于， 所 述指示消息为 NBAP消息。
5、 根据权利要求 4所述的小区分集模式切换指示方法， 其特征在于， 所 述 NBAP消息为审计响应消息。
6、 根据权利要求 5所述的小区分集模式切换指示方法， 其特征在于， 所 述指示消息中包括小区的分集能力信息。
7、 根据权利要求 2所述的小区分集模式切换指示方法， 其特征在于， 若 根据所述可用信息获知发分集小区对应的一路发射通道不可用， 还包括： 向所述无线网络控制器发送所述小区当前所用的发射通道对应的最大功 率信息。
8、 一种小区分集模式切换方法， 其特征在于， 包括：
接收基站发送的指示消息， 所述指示消息用于指示无线网络控制器对小 区进行小区分集模式切换；
根据所述指示消息建立经过小区分集模式切换的小区。
9、 根据权利要求 8所述的小区分集模式切换方法， 其特征在于， 所述接 收基站发送的指示消息， 所述指示消息用于指示无线网络控制器对小区进行 小区分集模式切换， 根据所述指示消息建立经过小区分集模式切换的小区包 括：
接收基站发送的、 用于指示无线网络控制器对发分集小区进行小区分集 模式切换的指示消息， 所述指示消息包括不支持分集模式的指示信息；
根据所述不支持分集模式的指示信息删除所述发分集小区后， 建立发不 分集小区；
或者包括：
接收基站发送的、 用于指示无线网络控制器对所述发不分集小区进行小 区分集模式切换的指示消息 , 所述指示消息包括支持分集模式的指示信息； 根据所述支持分集模式的指示信息删除所述发不分集小区后， 建立发分 集小区。
10、 根据权利要求 9所述的小区分集模式切换方法， 其特征在于， 所述 建立发不分集小区之前， 还包括：
接收所述基站发送的、 所述小区当前所用的发射通道对应的最大功率信 息， 以根据所述最大功率信息建立发不分集小区。
11、 一种基站， 其特征在于， 包括： 检测模块， 用于对小区发射通道进行检测， 获得所述发射通道的可用信 息；
指示模块， 用于根据所述检测模块获得的可用信息向无线网络控制器发 送用于指示所述无线网络控制器对所述小区进行小区分集模式切换的指示消 息。
12、 根据权利要求 11所述的基站， 其特征在于， 所述指示模块包括： 第一指示子模块， 用于若根据所述检测模块获得的可用信息获知发分集 小区对应的一路发射通道不可用， 向所述无线网絡控制器发送用于指示所述 无线网络控制器对所述发分集小区进行小区分集模式切换的指示消息， 所述 指示消息包括不支持发分集模式的指示信息； 和 /或
第二指示子模块， 用于若根据所述检测模块获得的可用信息获知发不分 集小区对应的两路发射通道均可用， 向所述无线网络控制器发送用于指示所 述无线网络控制器对所述发不分集小区进行小区分集模式切换的指示消息， 所述指示消息包括支持发分集模式的指示信息。
13、 根据权利要求 12所述的基站， 其特征在于， 若所述指示模块包括第 一指示子模块， 所述第一指示子模块还用于向所述无线网络控制器发送所述 小区当前所用的发射通道对应的最大功率信息。
14、 一种无线网络控制器， 其特征在于， 包括：
接收模块， 用于接收基站发送的指示消息， 所述指示消息用于指示无线 网络控制器对小区进行小区分集模式切换；
重建模块， 用于根据所述接收模块接收的指示信息建立经过小区分集模 式切换的小区。
15、 根据权利要求 14所述的无线网络控制器， 其特征在于， 所述重建模 块包括：
第一重建子模块， 用于若所述接收模块接收的指示消息为用于指示无线 网络控制器对发分集小区进行小区分集模式切换的指示消息， 所述指示消息 包括不支持分集模式的指示信息， 则根据所述不支持分集模式的指示信息删 除所述发分集小区后， 建立发不分集小区； 和 /或
第二重建子模块， 用于若所述接收模块接收的指示消息为用于指示无线 网络控制器对所述发不分集小区进行小区分集模式切换的指示消息， 所述指 示消息包括支持分集模式的指示信息， 则根据所述支持分集模式的指示信息 删除所述发不分集小区后， 建立发分集小区。
16、 根据权利要求 15所述的无线网络控制器， 其特征在于， 若所述重建 模块包括第一重建子模块，所述第一重建子模块还用于接收所述基站发送的、 所述小区当前所用的发射通道对应的最大功率信息， 以根据所述最大功率信 息建立发不分集小区。
17、 一种通信系统， 包括如权利要求 11-13任意一项所述的基站和如 权利要求 14-16任意一项所述的无线网络控制器。
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EP1107474A2 (en) * 1999-12-06 2001-06-13 Matsushita Electric Industrial Co., Ltd. Wireless communication base station
CN1445945A (zh) * 2002-03-18 2003-10-01 华为技术有限公司 一种发射分集与非发射分集的自动切换方法
CN1445944A (zh) * 2002-03-18 2003-10-01 华为技术有限公司 一种发射分集与非发射分集的自动切换方法

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CN1445945A (zh) * 2002-03-18 2003-10-01 华为技术有限公司 一种发射分集与非发射分集的自动切换方法
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