WO2020124445A1 - 一种处理网络异常的方法、通信系统及相关处理单元 - Google Patents

一种处理网络异常的方法、通信系统及相关处理单元 Download PDF

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Publication number
WO2020124445A1
WO2020124445A1 PCT/CN2018/122129 CN2018122129W WO2020124445A1 WO 2020124445 A1 WO2020124445 A1 WO 2020124445A1 CN 2018122129 W CN2018122129 W CN 2018122129W WO 2020124445 A1 WO2020124445 A1 WO 2020124445A1
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bbu
rru
rrus
service channel
rru set
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English (en)
French (fr)
Inventor
李长庚
陈寒
焦富强
陈浩
李鹏
李华栋
项根星
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Hytera Communications Corp Ltd
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Hytera Communications Corp Ltd
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Priority to PCT/CN2018/122129 priority Critical patent/WO2020124445A1/zh
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/04—Arrangements for maintaining operational condition

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  • the present application relates to the field of communications, and in particular, to a method for handling network abnormalities, a communication system, and related processing units.
  • the reliability of communications is of utmost importance, while in the rail transit industry, the reliability of communications is more stringent.
  • the backup mode of A/B dual network is mostly used.
  • the current communication mode two sets of links and two sets of baseband processing devices and The remote radio unit, so it can be seen that although the current A/B dual network backup mode communication system ensures the reliability of communication, it greatly increases the cost of constructing the communication system in the implementation mode. Therefore, there is an urgent need for a communication system that can guarantee the reliability of communication and can save the realization cost.
  • the main technical problem solved by this application is how to reduce the cost of constructing a communication system while ensuring communication reliability.
  • a technical solution adopted by the present application is to provide a communication system including a plurality of baseband processing units BBU and a plurality of radio frequency remote units RRU, wherein,
  • the primary BBU is used to establish a first service channel with all the RRUs in the RRU set to transmit service data; the standby BBU is used when the first service channel is abnormal, Establishing a second service channel with at least part of the RRUs in the RRU set to transmit service data, wherein the at least part of RRUs includes RRUs that cannot communicate with the main BBU due to an abnormality of the first service channel.
  • another technical solution adopted by the present application is to provide a method for handling network abnormalities: the method is applied to a communication network system including multiple baseband processing units BBU and multiple radio frequencies Remote unit RRU, wherein the multiple RRUs are divided into at least one RRU set, the RRUs in each RRU set are connected in sequence, and the first and last RRUs of the RRU set are connected to the main BBU and the RRU set respectively Prepare BBU;
  • the method includes:
  • the standby BBU detects that the first service channel established by the main BBU and the corresponding RRU set for transmitting service data is abnormal;
  • Another technical solution adopted by the present application is to provide a method for handling network anomalies.
  • the method is applied to a communication network system including multiple baseband processing units BBU and multiple radio frequency Remote unit RRU, wherein the multiple RRUs are divided into at least one RRU set, the RRUs in each RRU set are connected in sequence, and the head and tail RRUs of the RRU set are connected to the main BBU and backup of the RRU set, respectively BBU;
  • the method includes:
  • the RRU monitors whether the first service channel established by the RRU set and the corresponding main BBU for transmitting service data is abnormal;
  • abnormal information is reported to the standby BBU corresponding to the RRU set, so that the standby BBU is established with at least part of RRUs in the RRU set when receiving the abnormal information
  • a second service channel to transmit service data wherein the at least part of the RRU includes an RRU that cannot receive the main BBU signal due to an abnormality of the first service channel.
  • the device includes: a processor, a memory, and a communication interface.
  • the processor and the memory and the communication interface are mutually connected. connection;
  • the communication interface is connected to the remote radio unit to communicate with the remote radio unit in response to instructions from the processor;
  • the memory is used to store program data
  • the processor is used to run the program data to perform the method for handling network abnormalities as described above.
  • a radio frequency remote unit including: a processor, a memory, and a communication interface, and the processor is connected to the memory and the communication interface;
  • the communication interface is connected to an adjacent radio frequency remote unit or a baseband processing unit, and is used to communicate with the adjacent radio frequency remote unit or a baseband processing unit connected thereto;
  • the memory is used to store program data
  • the processor is used to run the program data to perform the method as described above.
  • the above solution by providing a communication system including a plurality of baseband processing units BBU and a plurality of remote radio unit RRUs, can realize that when the first service channel established by the RRU in the communication system is abnormal, it is set by the communication system
  • the backup BBU and RRU concentrate at least part of the RRU to establish a second service channel to ensure the normal transmission of the service, which can effectively achieve the normal operation of the transmission service when the service channel is abnormal, and the reliability of the communication.
  • the provided communication system can realize the communication reliability of the communication network under abnormal conditions only by using the BBU and a simple control method, the cost of constructing the communication system is also reduced.
  • FIG. 1 is a schematic structural diagram of an embodiment of a communication system of the present application.
  • FIG. 2 is a schematic diagram of an application scenario of another embodiment of a communication system of the present application.
  • FIG. 3 is a schematic diagram of an application scenario of yet another embodiment of a communication system of the present application.
  • FIG. 4 is a schematic flowchart of an embodiment of a method for processing network abnormalities of the present application
  • FIG. 5 is a schematic flowchart of an embodiment of a method for processing a network exception according to the present application
  • FIG. 6 is a schematic structural diagram of an embodiment of a baseband processing unit of the present application.
  • FIG. 7 is a schematic structural diagram of an embodiment of a radio frequency remote unit according to the present application.
  • the communication system provided in this application is mainly used in the rail transit industry, and can maintain normal business data transmission even when the network fails.
  • the RRU set 101 includes multiple RRUs (where multiple RRUs are omitted between RRU 1013 and RRU 1014), a main BBU 102, and a standby BBU 103.
  • the number of RRUs included in the RRU set 101 is at least one. Specifically, the number included in different embodiments is set according to communication needs and requirements, but each RRU is set with a BBU in the first and last positions. One of them defines its working mode as the main working mode, that is, the main BBU, and the other is defined as the standby BBU, and starts working when needed. Therefore, it can be seen from the above that the distinction between the main BBU and the standby BBU is based on its working mode.
  • the standby BBU is used to establish a second service channel for transmission of service data when an abnormality occurs in the first service channel established by the main BBU and the RRU set.
  • an abnormality occurs in the first service channel, it means that complete service data transmission cannot be performed in the RRU set, that is, at least one device in the main BBU or all RRUs is abnormal and cannot work normally. Therefore, at least part of the RRUs include RRUs that cannot communicate with the main BBU due to the abnormality of the first service channel.
  • each RRU in the RRU set can communicate directly or indirectly with the main BBU, it will follow the first
  • the service channel feeds back the link status message to the standby BBU to inform the standby BBU that the current RRU can work normally in the first service channel.
  • the RRU When direct or indirect communication with the primary BBU is not possible, the RRU will report abnormalities to the standby BBU along the subordinate RRU Respond to signaling to inform the current RRU that it cannot communicate with the main BBU.
  • the link status message fed back will contain the current RRU number and location information.
  • the BBU will analyze the statistics of the received link status messages to clearly and accurately determine which part of the first service channel has a failure, so that the specific cause of the current abnormality in the first service channel can be quickly analyzed .
  • a primary BBU 102 and a backup BBU 103 are provided at the beginning and end of each RRU set 101.
  • the primary BBU 102 establishes a first service channel with all the RRUs in the RRU set 101 for transmission of services Data, when an abnormality occurs in the established first service channel, the standby BBU 103 is activated, and a second service channel is established with an RRU that is at least partially unable to communicate with the main BBU due to the abnormality of the first service channel to transmit service data.
  • At least one BBU connected to an adjacent RRU set is in the same baseband processing device.
  • a plurality of independent baseband processing units BBUs are provided in the baseband processing device, and the selected BBUs in adjacent RRU sets can communicate and interact, but process the baseband signals independently from each other and to different The baseband signals sent by the RRU collectively.
  • the main BBU in the RRU set and the standby BBU in the adjacent RRU set are integrated BBUs in the same baseband processing device. It should be noted that, in the communication system provided by the present application, there is no limitation on how to arrange the BBUs in each adjacent RRU set in the communication system, but only needs to satisfy one RRU set in the head and tail positions to set a main BBU and a backup BBU respectively That's it.
  • the main BBU in the RRU set and the standby BBU in the adjacent RRU set may be different BBUs or the same BBU.
  • the master BBU in the RRU set and the standby BBU in the neighboring RRU set may be independent multiple BBUs integrated in the same baseband processing device, so that the master and standby BBUs in the same RRU set are integrated in different ways in this way.
  • the baseband processing equipment improves the reliability of the system and simplifies the deployment of the system; the main BBU in the RRU set and the standby BBU in the adjacent RRU set can also be the same BBU and the main BBU in the RRU set and its adjacent
  • the RRU sets up spare BBUs, thereby reducing the number of required BBUs and reducing the cost of system deployment.
  • the transmission of service data between adjacent RRU sets is through adjacent main and standby BBUs, and the communication between adjacent main BBU units may be through the core of the base station to which they are connected.
  • Internet or the Internet.
  • FIG. 2 is a schematic diagram of an application scenario of an embodiment of a communication system 200 provided by this application.
  • the embodiment shown in FIG. 2 refers to the abnormality of the first service channel, specifically the failure of the main BBU 202, which causes RRU, RRU, RRU, and RRU to fail to communicate with the main BBU 301, so it cannot provide terminals in this area.
  • the standby BBU 205 establishes a second service channel with all RRUs in the RRU set 201 when the first service channel in this situation is abnormal.
  • the main BBU in FIG. 2, that is, the cross in the 202 box in the figure, indicates that the current main BBU 202 is faulty, and the baseband signal cannot be processed normally.
  • all RRUs between the main BBU 202 and the standby BBU 205 are Cannot perform normal business data transmission with the main BBU 202, that is, the standby BBU 205 obtains feedback from the RRU 2011 directly connected to the BBU 202, indicating an abnormal link status message (in other embodiments, the The link status message is divided into the first abnormal information and the second abnormal information), it is judged that the current first service channel is abnormal due to the failure of the main BBU 202, where the failure includes the failure of the main BBU 202 itself, and also includes the main BBU 202 Failure of the connection with the adjacent RRU 2011. At this time, the standby BBU 205 will transition from the listening state to the working state, and construct a second service channel to ensure normal communication.
  • the second service channel constructed by the standby BBU 205 includes: all RRUs except the main BBU 202 in the RRU set 201. Since the standby BBU 205 is enabled as a working state, the RRU data in the current RRU set 201 at this time The flow direction has changed, the original downstream end of the RRU now becomes the upstream end, and the original upstream end becomes the current downstream end. It should be noted that, in the communication system provided by the present application, the transmission of data services between adjacent RRU sets is independent, and does not interfere with or affect each other.
  • FIG. 3 is a schematic diagram of an application scenario of a communication system 300 provided in this application in another embodiment.
  • the embodiment shown in FIG. 3 is that when the abnormality of the first service channel is specifically a failure of the link between the RRUs in the RRU set 301, that is, RRU 3013 and RRU 3014, the standby BBU is specifically used when the first service channel is abnormal.
  • the listening state is converted to the working state, and a second service channel is established with at least a part of RRUs that cannot communicate with the main BBU.
  • the main BBU 302 in the current RRU set 301 is also used to maintain when the first service channel is abnormal Part of the service channel between RRU 3011 and RRU 3012 in RRU set 301 that can communicate with the main BBU.
  • the failure of the link between the RRUs in the RRU set 301 specifically includes: the connection between the adjacent RRU 3012 and the RRU 3013 is broken, and one or more RRU devices in the RRU set 301 have internal failures (Figure (Not shown), unable to become a signal transmission node in the first service channel, resulting in that the RRU in the downstream direction of the RRU cannot normally communicate with the main BBU.
  • the standby BBU in the communication system determines that the first service channel is abnormal through the received abnormal link status message of the RRU, while constructing the second service channel .
  • the specific information of the fault contained in the abnormal link status message will be reported to the management center, so that the first service channel can be restored to normal work in time, and the communication system can be quickly repaired.
  • the location information in the abnormal response signaling may be obtained according to the pre-stored in the RRU, or may be obtained according to the RRU number association, or may be obtained according to the positioning information carried by the RRU itself, without any specific limitation.
  • the standby BBU detects that the first service channel established by the main BBU and the corresponding RRU set for transmitting service data is abnormal.
  • the standby BBU cannot receive the normal link status message fed back by each RRU and can communicate normally with the main BBU, or it receives the abnormal link status message fed back from the RRU connected to the main BBU in the RRU set
  • the main BBU is faulty, that is, the main BBU cannot process the baseband signal, or the connection between the main BBU and the adjacent RRU is abnormal, so that the main BBU and the corresponding RRU set are used to establish The first service channel transmitting service data is abnormal.
  • the normal link status message is that when the RRU in the RRU set can communicate with the main BBU normally, the downlink RRU feeds back the signaling to the standby BBU.
  • the abnormal link status message is that the RRU in the RRU set cannot communicate with the main BBU.
  • the downstream RRU feeds back the signaling to the standby BBU.
  • the upstream and downstream in this application refer to the definition according to the current data flow direction, the same as the data flow direction is the downstream direction, and the reverse to the data flow direction is the upstream direction.
  • each RRU in the RRU set in the communication system is numbered to mark its identity information and stored in the RRU in association with the corresponding location information, which is used to call when sending a link status message. Sent to the standby BBU to quickly determine abnormal location information.
  • the standby BBU when the standby BBU receives an abnormal link status message fed back by a certain RRU in the RRU set, the standby BBU determines that the first service channel is faulty, and then based on the received abnormal link status The information contained in the message further reports the current abnormality to the management center to inform the management personnel that a certain RRU in the first service channel has failed and what the specific location information is. Then, based on the obtained information, the management personnel can go to the corresponding location or notify the maintenance personnel corresponding to the fault location to carry out refurbishment adjustment.
  • the corresponding identity information is saved in the RRU, and the corresponding location information is saved to the BBU or the management center, which is specifically set according to the actual requirements of the communication system.
  • S120 Establish a second service channel with at least some RRUs in the RRU set to transmit service data.
  • at least part of the RRUs include RRUs that cannot receive the main BBU signal due to the abnormality of the first service channel.
  • the standby BBU When it is determined that the first service channel is abnormal, the standby BBU will further establish a second service channel with at least part of the RRUs to transmit service data through the established second service channel. It should be noted that the role of the service data transmission performed by the established second service channel is the same as that of the main BBU, and both provide communication services for the terminal connected to the RRU.
  • establishing the second service channel with at least a part of the RRUs in the RRU set includes: establishing a second service channel with all RRUs in the RRU set Second business channel.
  • the main BBU does not transmit work and data services. Since the main BBU and the standby BBU are respectively connected in the head-to-tail direction of the RRU set, the data flow direction of the second service channel constructed at this time is opposite to the data flow direction constructed by the previous master BBU.
  • detecting that the first service channel established by the main BBU and the corresponding RRU set for transmitting service data is abnormal includes receiving the first abnormal information reported by the RRU in the corresponding RRU set.
  • the first abnormal information is information reported when the RRU does not detect the link detection message sent by the main BBU, and is specifically embodied in the information contained in the abnormal link status message fed back by the RRU at this time.
  • the main BBU in the first service channel will send a link detection message to the RRU in the RRU set to detect whether the RRU in the first service channel is normal Work, or detect whether the RRU is normally in the first service channel.
  • detecting that an abnormality occurs in the first service channel established by the main BBU and the corresponding RRU set for transmitting service data includes: receiving second abnormality information reported by the RRU in the corresponding RRU set.
  • the second abnormality information is information reported when the RRU does not detect the link status message sent by the RRU to which it is connected. In the current embodiment, it is specifically embodied in the information contained in the abnormal link status message fed back when the RRU cannot detect the service data sent by the upstream RRU connected to it.
  • the link status message is a link status message reported by the RRU to the master BBU or the standby BBU after receiving the link detection message sent by the BBU, or a link status message that the RRU periodically reports under the setting.
  • FIG. 5 is a schematic flowchart of an embodiment of a method for processing a network exception according to the present application.
  • the method provided in FIG. 5 is applied to a communication network system.
  • the communication network system includes multiple baseband processing units BBU and multiple remote radio unit RRUs, where the multiple RRUs are divided into at least one RRU set, and the RRUs in each RRU set are based on Connected in sequence, and the first and last RRU of the RRU set are connected to the main BBU and standby BBU of the RRU set, respectively.
  • the method shown in FIG. 5 is explained by the RRU in the communication system as the execution subject.
  • the method includes:
  • S510 The RRU monitors whether the first service channel established by the RRU set and the corresponding main BBU for transmitting service data is abnormal.
  • the RRU will monitor whether the first service channel established by the main BBU corresponding to the RRU set to transmit service data is abnormal includes: monitoring whether it can communicate with the main BBU and monitoring the subordinate Whether RRU can communicate with it and so on. If any of the above situations cannot be performed normally, it is determined that the first service channel is abnormal. At the same time, in addition to the above, the RRU also monitors whether it can normally accept the communication request of the terminal, and is used to determine whether the current RRU has an abnormality in communication acceptance capability.
  • S520 When an abnormality is detected in the first service channel, report abnormal information to the standby BBU corresponding to the RRU set, so that the standby BBU establishes a second with at least a part of RRUs in the RRU set when receiving the abnormal information Business channel to transmit business data.
  • at least part of the RRUs include RRUs that cannot receive the main BBU signal due to the abnormality of the first service channel.
  • the reported abnormal information includes: abnormal number and/or location information. The type of exception can also be included if necessary.
  • the abnormal types include: abnormal main BBU, abnormal RRU link connection or abnormal RRU, etc.
  • the communication interface 603 is connected to the remote radio unit RRU to communicate with the remote radio unit in response to the instruction of the processor 601.
  • the communication mode between the baseband processing unit and the remote radio unit includes two types: when the current baseband processing unit 600 is the standby BBU in the current RRU set, the current baseband processing unit 600 and the remote radio unit
  • the inter-communication is in the listening mode, that is, the baseband processing unit 600 only receives the link status message sent by the remote radio unit, and does not actively send the baseband signal to the remote radio unit.
  • the second working mode of the baseband processing unit 600 is that when the baseband processing unit 600 receives the first abnormal information or the second abnormal information sent by the RRU in the RRU set, it is constructed with an RRU in the RRU set that is at least partially unable to communicate with the main BBU
  • the second service channel starts processing the baseband signal and sends it to the RRU directly connected to it to ensure a stable and reliable communication method and provide a reliable communication system.
  • the memory 602 is used to store program data, and the processor 601 is used to run the program data stored in the memory 602 to perform the method described in the embodiment corresponding to FIG. 4 above.
  • the communication interface 703 is connected to the adjacent radio remote unit RRU or the adjacent baseband processing unit BBU to communicate with the radio remote unit or the baseband processing unit BBU in response to the instruction of the processor 601.
  • the memory 602 is used to store program data, and the processor 601 is used to run the program data stored in the memory 602 to perform the method described in the embodiment corresponding to FIG. 5 above.

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Abstract

本申请公开了一种通信系统，该系统包括多个基带处理单元BBU和多个射频拉远单元RRU，其中，多个RRU划分为至少一个RRU集，每个RRU集中的RRU依序连接，且位于RRU集首尾的RRU分别连接于RRU集主BBU和备BBU；对于每个RRU集，主BBU用于与RRU集建立第一业务通道以传输业务数据；备BBU用于在第一业务通道异常时，与RRU集中的至少部分RRU建立第二业务通道以传输业务数据，其中，至少部分RRU包括由于第一业务通道异常导致无法与主BBU通信的RRU。本申请所提供的通信系统，通过所设置的连接在RRU集首尾的主BBU和备BBU，实现提供一种更为可靠成本较低的通信系统。本申请还提供一种处理网络异常的方法及相关处理单元。

Description

一种处理网络异常的方法、通信系统及相关处理单元 技术领域
本申请涉及通信领域，特别是涉及一种处理网络异常的方法、通信系统及相关处理单元。
背景技术
在专网通信领域中，通信的可靠性是至关重要的，而在轨道交通行业中对于通信的可靠性要求更为严格。现有技术中，为保证轨道交通中的通信可靠性，所采用的多是A/B双网的备份模式，但是由于在当前通信模式中，采用了两套链路和两套基带处理装置和射频拉远单元，所以可知当前所采用的A/B双网的备份模式的通信系统虽然保证了通信的可靠性，但是在实现方式上大大增加了构建通信系统的成本投入。因而，现在急需一种即可保证通信可靠性且可以节约实现成本的通信系统。
发明内容
本申请主要解决的技术问题是如何在保证通信可靠性的同时，减少构建通信系统的成本。
为解决上述技术问题，本申请采用的一个技术方案是：提供一种通信系统，该系统包括多个基带处理单元BBU和多个射频拉远单元RRU，其中，
所述多个RRU划分为至少一个RRU集，每个所述RRU集中的RRU依序连接，且位于所述RRU集首尾的RRU分别连接于所述RRU集的主BBU和备BBU；
对于每个所述RRU集，所述主BBU用于与所述RRU集中的所有所述RRU建立第一业务通道以传输业务数据；所述备BBU用于在所述第一业务通道异常时，与所述RRU集中的至少部分RRU建立第二业务通道以传输业务数据，其中，所述至少部分RRU包括由于所述第一业务通道异常导致无法与所述主BBU通信的RRU。
为解决上述技术问题，本申请采用的另一个技术方案是：提供一种 处理网络异常的方法：所述方法应用与通信网络系统，所述通信网络系统包括多个基带处理单元BBU和多个射频拉远单元RRU，其中，所述多个RRU划分为至少一个RRU集，每个所述RRU集中的RRU依序连接，且所述RRU集的首尾RRU分别连接于所述RRU集的主BBU和备BBU；
所述方法包括：
备BBU检测到主BBU与对应RRU集建立的用于传输业务数据的第一业务通道出现异常；
与所述RRU集中的至少部分RRU建立第二业务通道以传输业务数据，其中，所述至少部分RRU包括由于所述第一业务通道异常导致无法接收所述主BBU信号的RRU。
为解决上述技术问题，本申请采用的又一个技术方案：提供一种处理网络异常的方法，所述方法应用于通信网络系统，所述通信网络系统包括多个基带处理单元BBU和多个射频拉远单元RRU，其中，所述多个RRU划分为至少一个RRU集，每个所述RRU集中的RRU依序连接，且所述RRU集的首尾RRU分别连接于所述RRU集的主BBU和备BBU；
所述方法包括：
所述RRU监测所在RRU集与对应的所述主BBU建立的用于传输业务数据的第一业务通道是否出现异常；
当监测到所述第一业务通道出现异常时，向所在RRU集对应的备BBU上报异常信息，以使所述备BBU在接收到所述异常信息时，与所述RRU集中的至少部分RRU建立第二业务通道以传输业务数据，其中，所述至少部分RRU包括由于所述第一业务通道异常导致无法接收所述主BBU信号的RRU。
为解决上述技术问题，本申请采用的又一个技术方案是：提供一种基带处理单元，所述装置包括：处理器、存储器和通信接口，所述处理器与所述存储器和所述通信接口相互连接；
其中，所述通信接口与射频拉远单元连接，以响应所述处理器的指令与所述射频拉远单元进行通信；
所述存储器用于存储程序数据；
所述处理器用于运行所述程序数据，以执行如上所述的处理网络异常的方法。
为解决上述技术问题，本申请采用的又一个技术方案是：提供一种射频拉远单元包括：处理器、存储器和通信接口，所述处理器与所述存储器和所述通信接口相互连接；
其中，所述通信接口与相邻的射频拉远单元或基带处理单元连接，用于与相邻的所述射频拉远单元或者是与之相连的基带处理单元进行通信；
所述存储器用于存储程序数据；
所述处理器用于运行所述程序数据，以执行如上所述的方法。以上方案，通过提供一种包括多个基带处理单元BBU和多个射频拉远单元RRU的通信系统，可实现在通信系统中RRU所建立的第一业务通道出现异常时，由通信系统中所设置的备BBU与RRU集中至少部分RRU建立第二业务通道以保证传输业务正常进行，可有效实现在业务通道发生异常时，依然保证传输业务的正常进行，保证通信的可靠性，在实现上述有益效果的同时，由于所提供的通信系统仅是利用备BBU及简单的控制方法即可实现保证通信网络在异常状态下的通信可靠性，所以还减少了构建通信系统的成本投入。
附图说明
图1是本申请一种通信系统一实施例的结构示意图；
图2是本申请一种通信系统另一实施例的应用场景示意图；
图3是本申请一种通信系统又一实施例的应用场景示意图；
图4是本申请一种处理网络异常的方法一实施例的流程示意图；
图5是本申请一种处理网络异常的方法一实施例的流程示意图；
图6是本申请一种基带处理单元的一实施例结构示意图；
图7是本申请一种射频拉远单元的一实施例结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。可以理解的是，此处所描述的具体实施例仅用于解释本申请，而非对本申请的限定。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
本申请所提供的通信系统主要是应用于轨道交通行业，可在网络发生故障时仍能维持正常的业务数据的传输。
请参见图1，为本申请提供的一种通信系统100在一实施例中的结构示意图。在当前实施例中，本申请所提供的通信系统100包括：多个基带处理单元BBU和多个射频拉远单元RRU。
其中，多个RRU(1011、1012、1013和1014)以及对应的主BBU02和备BBU03划分为至少一个RRU集101，每个RRU集中的RRU依序连接，且位于RRU集101首尾的RRU分别连接于RRU集101的主BBU102和备BBU 103，在RRU集101中相邻的两个RRU或者是BBU与RRU是可以进行数据业务的传输的。
如图1所示，RRU集101中包括多个RRU(其中，RRU 1013和RRU 1014之间省略多个RRU)、一个主BBU 102和一个备BBU 103。需要说明的是，RRU集101中所包含的RRU的数量至少为一个，具体 在不同实施例中所包含的数量依据通信的需要及要求设置，但是每个RRU集中在首尾位置分别设置一个BBU，其中一个定义其工作模式为主工作模式，即主BBU，另一个则定义为备BBU，在需要时启动工作。故由上可知，主BBU和备BBU的区分依据在于其工作模式。本申请所定义的RRU集中主BBU以及所有的RRU构建的业务通道称之为第一业务通道。在本申请中，将在第一业务通道正常工作时所启用的BBU定义为主BBU，将在第一业务通道发生异常时才启用的BBU定义为备BBU。主BBU和备BBU在实质上均是可以进行基带信号的处理和数据存储的设备，除去工作模式的不同，对于基带信号的处理和数据存储的功能均是相同的；RRU是用于在远端将基带信号转换成射频信号并传送出去的设备。
对于每个RRU集，主BBU用于与RRU集中的所有RRU共同建立第一业务通道以传输业务数据。主BBU和RRU集中的RRU所建立的第一业务通道的工作流程如下：主BBU通过与其相连的基站核心网络获取到所需向下行RRU传输的数据，并处理得到承载数据的基带信号，并将基带信号传输至与之直接连接的RRU处，RRU在接收到主BBU所传输的基带信号后，会将基带信号转换成射频信号，并传送出去，具体的传送是指向当前RRU的下一级RRU或是与之相连的终端处，以通过RRU向终端发送该所需传输的数据信息。同理，当终端需要向上行方向发送数据时，则会先向与终端所连接的RRU发送数据，然后与终端所连接的RRU通过其上级RRU这样一级一级向上传输该数据至主BBU处，主BBU则会响应处理所接收到的数据。需要说明的是，当某一RRU在可正常或无法正常与主BBU进行通信时，均会通过下级的各个RRU将链路状态消息发送至备BBU处，以告知第一业务通道中RRU的是否正常在第一通道中。
备BBU用于在主BBU与RRU集所建立的第一业务通道发生异常时，备BBU与RRU集中至少部分RRU建立第二业务通道以传输业务数据。第一业务通道发生异常时，是指RRU集中无法进行完整的业务数据的传输，即至少在主BBU或者所有的RRU中有至少一个设备发生 异常，无法正常工作。故其中，至少部分RRU包括由于第一业务通道异常导致无法与主BBU通信的RRU。
在当前实施例中，当本申请所提供的通信系统中的RRU集中的主BBU与RRU集所建立的第一业务通道正常工作时，备BBU处于侦听状态，即仅关注所建立的第一业务通道是否正常工作，但是并不处理基带信号。仅是在判断第一业务通道出现异常时，由侦听状态切换为工作状态，与由于第一业务通道异常导致无法与主BBU进行通信的RRU组件第二业务通道，以保证在发生异常时，同样可以保证正常的通信。其中，备BBU在侦听状态时，会关注是否可以收到RRU集中RRU反馈的链路状态消息，RRU集中每个RRU在可正常与主BBU进行直接或间接通信时，均会沿着第一业务通道向备BBU反馈链路状态消息以告知备BBU当前的RRU可正常在第一业务通道中工作，当无法与主BBU进行直接或间接的通信时，RRU会沿下级RRU向备BBU反馈异常回应信令，以告知当前的RRU无法与主BBU进行通信。同时所反馈的链路状态消息中会包含当前RRU的编号和位置信息。被BBU在会对所接收到的链路状态消息进行分析统计，以清楚准确地判断第一业务通道中哪一个部分出现了故障，从而可以快速分析得到当前第一业务通道中发生异常的具体原因。
当前实施例中，本申请所提供的通信系统中通过在每个RRU集101首尾设置主BBU 102和备BBU 103，主BBU 102与RRU集101中所有的RRU建立第一业务通道用于传输业务数据，在所建立的第一业务通道发生异常时，备BBU 103会启用，与至少部分因第一业务通道异常而无法与主BBU进行通信的RRU建立第二业务通道，以传输业务数据。即仅通过在一个RRU集中设置一个备BBU及简单的控制方法，即可实现构建一种保证通信可靠性的通信系统，实现在业务通道发生异常时依旧可以提供可靠稳定的通信，实现备份通信网络的同时，还极大的减少构建可靠稳定的通信系统的成本。
在另一实施例中，本申请所提供的通信系统中，相邻的RRU集所连接的BBU至少有一个处于同一基带处理设备中的。在当前实施例中， 基带处理设备中设置有多个独立的基带处理单元BBU，相邻的RRU集中所选用的BBU之间是可进行通信和交互的，但相互独立地处理基带信号并向不同RRU集中发送的基带信号。如：
当一实施例中，通信系统仅有两个RRU集，则相邻的RRU集中处于同一基带处理设备中的BBU可以是两个RRU集中的主BBU，也可以是两个RRU集中的备BBU，也可以是两个RRU集中的其中一个的主BBU和另一个的备BBU，具体不做限定。
当一实施例中，当通信系统中包含多个RRU集时，RRU集中的主BBU与其相邻的RRU集的备BBU为同一基带处理设备中所集成的BBU。需要说明的是，在本申请所提供的通信系统中，对于通信系统中各个相邻的RRU集中的BBU如何排列不做限定，只需要满足一个RRU集中在首尾位置分别设置一个主BBU和备BBU即可。
可以理解，上述的RRU集中的主BBU与其相邻的RRU集的备BBU可以是不同的BBU或是相同的BBU。也就是说，RRU集中的主BBU与其相邻的RRU集的备BBU可以是集成在同一基带处理设备中的独立的多个BBU，从而通过这种方式将同一RRU集中的主备BBU集成在不同的基带处理设备来提高系统的可靠性，并且简化了系统的部署；RRU集中的主BBU与其相邻的RRU集的备BBU也可以是同一个BBU同时用作RRU集中的主BBU与其相邻的RRU集的备BBU，从而减少所需BBU的数量，减少系统部署成本。
需要说明的是，在当前实施例中，相邻的RRU集间的业务数据的传输是通过相邻的主备BBU，相邻的主BBU单元之间的通信可以是通过其所连接的基站核心网，或者是互联网。
具体的，请参见图2，为本申请所提供的通信系统200在一实施例中应用场景示意图。图2所示的实施例，是指第一业务通道异常具体为主BBU 202出现故障，导致RRU、RRU、RRU和RRU无法与主BBU 301进行通信，故也就无法为这个区域内的终端提供通信服务时，备BBU 205在这种情况的第一业务通道异常时，与RRU集201中的所有RRU建立第二业务通道。图2中的主BBU即图中202框中的叉号代表当前的主 BBU 202出现故障，无法正常处理基带信号，在当前实施例中，则主BBU 202与备BBU 205之间的所有RRU均无法与主BBU 202进行正常的业务数据传输，即备BBU 205中获得与BBU 202直接连接的RRU 2011的反馈的表示异常的链路状态消息(在其他实施例中，也可将不同状态下的链路状态消息分为第一异常信息和第二异常信息)，则判断当前的第一业务通道因主BBU 202故障出现异常，这里的故障包括主BBU 202的自身的故障，也包括主BBU 202与相邻的RRU 2011之间的连接的故障。此时备BBU 205会从侦听状态转换为工作状态，构建第二业务通道，以保证正常的通信。此时的备BBU 205所构建的第二业务通道包括：RRU集201中除去主BBU 202之外的所有RRU，由于备BBU 205启用为工作状态，此时当前的RRU集201中的RRU的数据流方向发生了改变，RRU原来的下行端现在变成上行端，原来的上行端变成了现在的下行端。需要说明的是，在本申请所提供的通信系统中，相邻的RRU集之间的数据业务的传输是独立的，不相互干扰的和影响的。
请参见图3，为本申请所提供的通信系统300在又一实施例中的应用场景示意图。图3所示实施例是当第一业务通道异常具体为RRU集301中的RRU之间链路出现故障，即RRU 3013和RRU 3014时，备BBU具体用于在第一业务通道异常时，由侦听状态转换为工作状态，与至少部分RRU集中无法与主BBU通信的RRU建立第二业务通道。且在当前实施例中，在备BBU与至少部分RRU集中无法与主BBU通信的RRU建立第二业务通道后，当前RRU集301中的主BBU 302还用于在第一业务通道异常时，维持与RRU集301中能够与主BBU通信的RRU 3011和RRU 3012之间的部分业务通道。其中，RRU集301中的RRU之间链路出现故障具体包括：相邻的RRU 3012和RRU 3013之间的连接线断掉、RRU集301中的某一或多个RRU设备内部出现故障(图未示意)，无法成为第一业务通道中的一个信号的传输节点，从而导致该RRU下行方向部分的RRU无法正常与主BBU进行通信。
结合图2和图3所对应的实施例，当通信系统中的备BBU通过所接收到的RRU的异常的链路状态消息，判断第一业务通道发生异常时， 在构建第二业务通道的同时，会将通过异常链路状态消息中所包含的故障具体信息上报至管理中心，以使第一业务通道及时恢复正常工作，保证通信系统的快速抢修。异常回应信令中的位置信息的获取可以是根据预先存储在RRU中的，也可以是根据RRU编号关联获取到的，还可以是根据RRU自身携带的定位信息获取的，具体不做任何限定。
请参见图4，为本申请所提供的一种处理网络异常的方法在一实施例中的流程示意图。
需要首先说明的是：图4所示的方法应用于通信网络系统，通信网络系统包括多个基带处理单元BBU和多个射频拉远单元RRU，其中，多个RRU划分为至少一个RRU集，每个RRU集中的RRU依序连接，且RRU集的首尾RRU分别连接于RRU集的主BBU和备BBU。在当前实施例中，图4所示实施例中的一种处理网络异常的方法所适用的主体是上图1至图3任一实施例所示意的通信系统中。
具体的，本申请所提供的方法包括：
S110：备BBU检测到主BBU与对应RRU集建立的用于传输业务数据的第一业务通道出现异常。
在当前实施例中，通信系统中的备BBU在第一业务通道正常工作时，保持对第一业务通道中各个RRU及主BBU侦听的状态，关注各个部分的工作是否正常，即会对第一业务通道是否出现异常进行检测。
其中，当备BBU无法接收到每一个RRU反馈的可与主BBU正常通信的正常的链路状态消息时，或者是收到来自RRU集中的与主BBU连接的RRU反馈的异常的链路状态消息时，则判断主BBU发生故障，即主BBU无法进行基带信号的处理，或者是主BBU与相邻的RRU之间的连接出现了异常，从而判断主BBU与对应的RRU集所建立的用于传输业务数据的第一业务通道出现异常。其中，正常的链路状态消息是RRU集中RRU可与主BBU进行正常通信时，通过下行的RRU反馈至备BBU的信令，同理，异常的链路状态消息是RRU集中的RRU无法与主BBU进行正常通信时，通过下行的RRU反馈至备BBU的信令。本申请中所说的上行和下行是指依据当前的数据流向定义的，与数据流 方向相同的是下行，与数据流方向反向的是上行方向。
在其他实施例中，又或者备BBU检测到无法接收到部分RRU反馈的与主BBU正常通信的正常回应指令时，或者收到RRU集中非与主BBU直接连接的RRU的异常回应指令时，则判断RRU集中RRU设备或者时RRU与RRU之间的连接出现故障。在本申请中，会对通信系统中的RRU集中的每个RRU进行编号，以标记其身份信息，并与对应的位置信息关联保存至RRU中，用于在发送链路状态消息时调用，一起发送给备BBU，用以快速判断出异常位置信息。例如：在一实施例中，备BBU在接收到RRU集中某一RRU反馈的异常的链路状态消息时，备BBU判断第一业务通道发生故障之后，会依据所接收到的异常的链路状态消息中所包含的信息进一步将当前的异常上报至管理中心，以告知管理人员第一业务通道中某一RRU发生故障，具体的位置信息是什么等。然后，管理人员可以基于所获得的信息，去对应的位置或者是通知故障位置对应的维修人员进行整修调整。当然在其他实施例中，RRU中仅保存其对应的身份信息，会将其对应的位置信息保存至BBU或者是管理中心处，具体依据通信系统的实际要求进行设定。
S120：与RRU集中的至少部分RRU建立第二业务通道以传输业务数据。其中，至少部分RRU包括由于第一业务通道异常导致无法接收主BBU信号的RRU。
当判断第一业务通道发生异常时，备BBU会进一步与RRU中的至少部分RRU建立第二业务通道，用以通过所建立的第二业务通道传输业务数据。需要说明的，所建立的第二业务通道所进行的传输业务数据的作用与主BBU是一致的，均是为与RRU所连接的终端提供通信服务的。
在当前实施例中，当第一业务通道异常具体为主BBU出现故障，RRU集中的RRU均是正常时，与RRU集中的至少部分RRU建立第二业务通道包括：与RRU集中的所有RRU建立第二业务通道。此时的主BBU是不进行工作和数据业务的传输。由于主BBU和备BBU分别连接在RRU集首尾方向，所以此时的所构建的第二业务通道中的数据流向 与之前主BBU所构建的数据流方向是相反的。
进一步的，检测到主BBU与对应的RRU集建立的用于传输业务数据的第一业务通道出现异常包括：接收到对应RRU集中的RRU上报的第一异常信息。其中，第一异常信息为RRU未检测到主BBU发送的链路检测消息时而上报的信息，具体体现为此时RRU所反馈的异常的链路状态消息中所包含的信息。其中，无论第一业务通道中是否有业务数据在传输，第一业务通道中的主BBU均会下发链路检测消息至RRU集中的RRU处，以检测整个第一业务通道中的RRU是否正常工作，又或者是检测RRU是否是正常处于第一业务通道中。
在另一实施例中，当第一业务通道异常具体为RRU集中的RRU之间链路出现故障时，与RRU集中至少部分RRU建立第二业务通道包括：与RRU集中的至少部分无法与主BBU通信的RRU建立第二业务通道。此时，主BBU还会保持可与其进行正常通信的RRU间的通信。
进一步的，检测到主BBU与对应RRU集建立的用于传输业务数据的第一业务通道出现异常，包括：接收到对应RRU集中的RRU上报的第二异常信息。其中，第二异常信息为RRU未检测到其连接的RRU发送的链路状态消息时而上报的信息。在当前实施例，具体体现为RRU无法检测到与其相连的上行RRU发送的业务数据时所反馈的异常的链路状态消息中所包含的信息。链路状态消息是RRU在接收到BBU发送的链路检测消息后上报至主BBU或备BBU的链路状态消息，或者是RRU在设定下定期上报的链路状态消息。
请参见图5，为本申请一种处理网络异常的方法在一实施例中的流程示意图。图5所提供的方法应用于通信网络系统，通信网络系统包括多个基带处理单元BBU和多个射频拉远单元RRU，其中，多个RRU划分为至少一个RRU集，每个RRU集中的RRU依序连接，且RRU集的首尾RRU分别连接于RRU集的主BBU和备BBU。图5所示的方法是由通信系统中的RRU为执行主体进行阐述。
所述方法包括：
S510：RRU监测所在RRU集与对应的主BBU建立的用于传输业 务数据的第一业务通道是否出现异常。
具体的，RRU在工作的过程中会监测所在的RRU集对应的主BBU建立的用于传输业务数据的第一业务通道是否出现异常包括：监测自身是否可以与主BBU进行通信、监测上下级的RRU是否可以与之进行沟通通信等等。上述情况有任意一个无法正常进行时，则就判断第一业务通道出现异常。同时，除去上述内容，RRU同时还会监测自身是否可以正常受理终端的通信请求，用于判断当前的RRU是否具备通信受理能力上的异常。
S520：当监测到第一业务通道出现异常时，向所在RRU集对应的备BBU上报异常信息，以使所述备BBU在接收到所述异常信息时，与RRU集中的至少部分RRU建立第二业务通道以传输业务数据。其中，至少部分RRU包括由于第一业务通道异常导致无法接收主BBU信号的RRU。其中，上报的异常信息包括：异常的编号和/或位置信息。必要时也可以包括异常的类型。其中异常的类型包括：主BBU异常、RRU链路连接异常或RRU异常等等。
请参见图6，为本申请一种基带处理单元600(BBU)的结构示意图。该基带处理单元600包括：处理器601、存储器602和通信接口603。处理器601与存储器602和通信接口603相互连接。
其中，通信接口603与射频拉远单元RRU连接，以响应所述处理器601的指令与所述射频拉远单元进行通信。具体的，在基带处理单元中与射频拉远单元之间的通信模式包括两种：当当前基带处理单元600是在当前的RRU集中是备BBU时，当前的基带处理单元600与射频拉远单元间的通信是侦听模式的，即基带处理单元600仅接收关注射频拉远单元所发送的链路状态消息，并不会主动发送基带信号至射频拉远单元。基带处理单元600的第二种工作模式是，当基带处理单元600接收RRU集中RRU发送的第一异常信息或第二异常信息时，与RRU集中至少部分无法与主BBU进行通信的RRU进行构建的第二业务通道，启动处理基带信号并发送至与其直接相连的RRU处，以保证稳定可靠的通信方式，提供一种可靠的通信系统。
存储器602用于存储程序数据，处理器601用于运行存储器602存储的程序数据，以执行如上图4对应的实施例所述的方法。
请参见图7，为本申请一种射频拉远单元700(BBU)的结构示意图。射频拉远单元700包括：处理器701、存储器702和通信接口703。处理器701与存储器702和通信接口703相互连接。
其中，通信接口703与相邻的射频拉远单元RRU或相邻的基带处理单元BBU连接，以响应所述处理器601的指令与射频拉远单元或基带处理单元BBU进行通信。存储器602用于存储程序数据，处理器601用于运行存储器602存储的程序数据，以执行如上图5对应的实施例所述的方法。
以上所述仅为本申请的实施方式，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。

Claims (11)

  1. 一种通信系统，其特征在于，该系统包括多个基带处理单元BBU和多个射频拉远单元RRU，其中，
    所述多个RRU划分为至少一个RRU集，每个所述RRU集中的RRU依序连接，且位于所述RRU集首尾的RRU分别连接于所述RRU集的主BBU和备BBU；
    对于每个所述RRU集，所述主BBU用于与所述RRU集中的所有所述RRU建立第一业务通道以传输业务数据；所述备BBU用于在所述第一业务通道异常时，与所述RRU集中的至少部分RRU建立第二业务通道以传输业务数据，其中，所述至少部分RRU包括由于所述第一业务通道异常导致无法与所述主BBU通信的RRU。
  2. 根据权利要求的1所述的系统，其特征在于，相邻的所述RRU集所连接的BBU至少有一个处于同一基带处理设备中，所述基带处理设备为承载了基带处理单元BBU的设备。
  3. 根据权利要求2所述的系统，其特征在于，所述RRU集的主BBU与其相邻的RRU集的备BBU为同一基带处理设备中所集成的BBU或同一BBU。
  4. 根据权利要求1所述的系统，其特征在于，当所述第一业务通道异常具体为所述主BBU出现故障时，所述备BBU具体用于在所述第一业务通道异常时，与所述RRU集中的所有RRU建立第二业务通道；和/或
    当所述第一业务通道异常具体为所述RRU集中的RRU之间链路出现故障时，所述备BBU具体用于在所述第一业务通道异常时，与至少部分所述RRU集中无法与所述主BBU通信的RRU建立第二业务通道，且所述主BBU还用于在所述第一业务通道异常时，维持与所述RRU集中能够与所述主BBU通信的RRU之间的业务通道部分。
  5. 一种处理网络异常的方法，其特征在于，所述方法应用于通信网络系统，所述通信网络系统包括多个基带处理单元BBU和多个射频拉 远单元RRU，其中，所述多个RRU划分为至少一个RRU集，每个所述RRU集中的RRU依序连接，且所述RRU集的首尾RRU分别连接于所述RRU集的主BBU和备BBU；
    所述方法包括：
    备BBU检测到主BBU与对应RRU集建立的用于传输业务数据的第一业务通道出现异常；
    与所述RRU集中的至少部分RRU建立第二业务通道以传输业务数据，其中，所述至少部分RRU包括由于所述第一业务通道异常导致无法接收所述主BBU信号的RRU。
  6. 根据权利要求5所述的方法，其特征在于，当所述第一业务通道异常具体为所述主BBU出现故障时，
    所述与所述RRU集中的至少部分RRU建立第二业务通道包括：与所述RRU集中的所有RRU建立所述第二业务通道；和或
    所述检测到主BBU与对应RRU集建立的用于传输业务数据的第一业务通道出现异常，包括：
    接收到对应RRU集中的RRU上报的第一异常信息，其中，所述第一异常信息为所述RRU未检测到所述主BBU发送的链路检测消息时而上报的。
  7. 根据权利要求5所述的方法，其特征在于，当所述第一业务通道异常具体为所述RRU集中的RRU之间链路出现故障时，
    所述与所述RRU集中的至少部分RRU建立第二业务通道包括：与所述RRU集中至少部分无法与所述主BBU通信的RRU建立所述第二业务通道；和/或
    所述检测到主BBU与对应RRU集建立的用于传输业务数据的第一业务通道出现异常，包括：
    接收到对应RRU集中的RRU上报的第二异常信息，其中，所述第二异常信息为所述RRU未检测到其连接的RRU发送的链路状态消息时而上报的。
  8. 根据权利要求5所述的方法，其特征在于，所述当判断所述第一 业务通道发生异常之后，所述方法还包括：将所述异常通过所述通信系统上报至管理中心，以告知管理人员所述第一业务通道发生故障。
  9. 一种处理网络异常的方法，其特征在于，所述方法应用于通信网络系统，所述通信网络系统包括多个基带处理单元BBU和多个射频拉远单元RRU，其中，所述多个RRU划分为至少一个RRU集，每个所述RRU集中的RRU依序连接，且所述RRU集的首尾RRU分别连接于所述RRU集的主BBU和备BBU；
    所述方法包括：
    所述RRU监测所在RRU集与对应的所述主BBU建立的用于传输业务数据的第一业务通道是否出现异常；
    当监测到所述第一业务通道出现异常时，向所在RRU集对应的备BBU上报异常信息，以使所述备BBU在接收到所述异常信息时，与所述RRU集中的至少部分RRU建立第二业务通道以传输业务数据，其中，所述至少部分RRU包括由于所述第一业务通道异常导致无法接收所述主BBU信号的RRU。
  10. 一种基带处理单元，其特征在于，所述基带处理单元包括：处理器、存储器和通信接口，所述处理器与所述存储器和所述通信接口相互连接；
    其中，所述通信接口与射频拉远单元连接，以响应所述处理器的指令与所述射频拉远单元进行通信；
    所述存储器用于存储程序数据；
    所述处理器用于运行所述程序数据，以执行如权利要求5至8任一项所述的方法。
  11. 一种射频拉远单元包括：处理器、存储器和通信接口，所述处理器与所述存储器和所述通信接口相互连接；
    其中，所述通信接口与相邻的射频拉远单元或基带处理单元连接，用于与相邻的所述射频拉远单元或者是与之相连的基带处理单元进行通信；
    所述存储器用于存储程序数据；
    所述处理器用于运行所述程序数据，以执行如权利要求9所述的方法。
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