WO2019237648A1 - 分布式Femto基站组网系统 - Google Patents

分布式Femto基站组网系统 Download PDF

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Publication number
WO2019237648A1
WO2019237648A1 PCT/CN2018/115084 CN2018115084W WO2019237648A1 WO 2019237648 A1 WO2019237648 A1 WO 2019237648A1 CN 2018115084 W CN2018115084 W CN 2018115084W WO 2019237648 A1 WO2019237648 A1 WO 2019237648A1
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WIPO (PCT)
Prior art keywords
unit
base station
femto base
control module
centralized control
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PCT/CN2018/115084
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English (en)
French (fr)
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孔博文
叶祖铨
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京信通信系统（中国）有限公司
京信通信系统（广州）有限公司
京信通信技术(广州)有限公司
天津京信通信系统有限公司
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Publication of WO2019237648A1 publication Critical patent/WO2019237648A1/zh
Priority to PH12020552110A priority Critical patent/PH12020552110A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/18—Network planning tools
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/50—Address allocation
    • H04L61/5007—Internet protocol [IP] addresses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/50—Address allocation
    • H04L61/5061—Pools of addresses

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a distributed Femto base station networking system.
  • the Femto base station can access the backhaul network through a standard wired connection and further connect to the operator's core network to provide wireless access services for various services for indoor or outdoor users. Can increase the system capacity of the entire network, and provide high-speed service business, as well as a better user experience. With the widespread popularity of Internet broadband services, broadband access is becoming more and more convenient, and Femto's applications will become more and more widely, including hotspot coverage, enterprise internal coverage, and home coverage.
  • the transmission power of a single Femto is small, and the coverage range is limited, which cannot meet the coverage requirements of large scenes in indoor and outdoor, and thus the application of distributed coverage using Femto is generated.
  • the traditional distributed Femto networking architecture is complex. The distributed Femto networking will increase the overhead of reselection, switching, and spectrum resources, and cannot effectively achieve indoor and outdoor large-scale communication coverage.
  • a distributed Femto base station networking system includes a Femto base station unit pool, a centralized control module, an indoor coverage module, and an outdoor coverage module, and the Femto base station unit pool includes multiple Femto base station units;
  • Each of the Femto base station units is connected to the centralized control module, the indoor coverage module and the outdoor coverage module are connected to the centralized control module, each of the Femto base station units is connected to an external core network, and a system is provided.
  • the centralized control module sends its own optical port parameters to the indoor coverage module, the outdoor coverage module, and each of the Femto base station units, and the indoor coverage module, the outdoor coverage module, and each of the femto base station units are respectively based on
  • the received optical port parameters and the information of the number of cascaded stages of the cascade are used to obtain an IP address for communication with the centralized control module from a preset IP address planning pool.
  • the centralized control module is loaded with a universal public radio interface protocol.
  • the Femto base station unit includes a first routing unit, a protocol data processing unit, and a first baseband data processing unit;
  • the first routing unit is connected to the external core network and the femto base station unit at a lower level, and the protocol data processing unit is connected to the first routing unit.
  • the Femto base station unit further includes a first monitoring unit.
  • the first routing unit is connected to the first baseband data processing unit through the first monitoring unit, and the first monitoring unit is connected to the first baseband data processing unit.
  • the protocol data processing unit is connected.
  • the Femto base station unit further includes a first clock unit, and the first clock unit is connected to the first baseband data processing unit.
  • the centralized control module includes a second routing unit and a second baseband data processing unit connected to each other;
  • the second baseband data processing unit is connected to the first baseband data processing unit, and the second routing unit is connected to the external core network.
  • the centralized control module further includes a second clock unit and a second monitoring unit, the second clock unit is connected to the second baseband data processing unit, and the second monitoring unit is separately connected to all The second routing unit and the second baseband data processing unit are connected.
  • the indoor coverage module includes a plurality of distributed indoor switching units
  • the outdoor coverage module includes a plurality of distributed outdoor exchange units.
  • the Femto base station unit is configured to send self-supported communication system information to the centralized control module when establishing communication with the centralized control module; the centralized control module is further configured to communicate with The optical port parameters connected to the Femto base station unit and the communication modes supported by each of the Femto base station units, the cell number of each of the Femto base station units, and the cell processing capabilities of each of the indoor exchange units and each of the outdoor exchange units , Configure a Femto base station unit cell number that supports transmission with each of the indoor switching unit and each of the outdoor switching unit.
  • the Femto base station unit is further configured to send an activation status message to the centralized control module when activated; the centralized control module is further configured to traverse the access when receiving the activation status message.
  • the Femto base station unit cell number configured by the indoor switching unit or the outdoor switching unit to determine whether the currently connected Femto base station unit cell configured by the indoor switching unit or the outdoor switching unit includes the current sending activation status message.
  • the Femto base station unit if it is, sends the cell parameters, delay calibration parameters, and control parameters of the Femto base station unit currently sending the activation status message to the indoor switching unit or the outdoor switching unit, and if not, sends
  • the Femto base station unit cell configured by the indoor switching unit or outdoor switching unit that is accessed next time is returned as the Femto base station unit cell configured by the indoor switching unit or outdoor switching unit that is currently accessed, and returned to the The Fe that determines whether the indoor exchange unit or the outdoor exchange unit is currently connected is configured. whether the mto base station unit cell includes an operation of
  • the Femto base station unit has a built-in first routing unit, and the first routing unit is used to provide a backhaul channel for uplink and downlink IP backhaul data, and is a cascaded next-level Femto base station unit. Provide a channel for uplink and downlink IP backhaul data, and when there are multiple Femto base station units for multi-standard mixed networking or capacity expansion, the first-level Femto base station unit uniformly accesses the backhaul network to construct the first backhaul routing;
  • the centralized control module has a built-in second routing unit.
  • the second routing unit accesses the backhaul network to form a second backhaul route.
  • the centralized control module connects the second routing unit and the backhaul in real time.
  • the connectivity status of the transmission network is notified to each of the Femto base station units.
  • each of the Femto base station units detects that the first backhaul route is unreachable and the second backhaul route is connected, sends the IP backhaul data to the centralized control module. Forwarded to the backhaul network by a centralized control module.
  • the above-mentioned distributed Femto base station networking system includes a Femto base station unit pool, a centralized control module, an indoor coverage module, and an outdoor coverage module.
  • the Femto base station unit pool includes multiple Femto base station units, and the centralized control module sends its own optical port parameters to all The indoor coverage module, the outdoor coverage module, and each of the Femto base station units, the indoor coverage module, the outdoor coverage module, and each of the Femto base station units are respectively based on the received optical port parameters and the cascaded level of the same.
  • the centralized control module can control each Femto base station unit, indoor coverage module, and The outdoor coverage module efficiently implements communication coverage in indoor and outdoor large and medium scenarios.
  • FIG. 1 is a schematic structural diagram of one embodiment of the foregoing distributed Femto base station networking system
  • FIG. 2 is a schematic structural diagram of a Femto base station unit and a centralized control module in one embodiment of the distributed Femto base station networking system;
  • FIG. 3 is a schematic diagram of a backhaul routing architecture in one embodiment of the distributed Femto base station networking system
  • FIG. 4 is a schematic diagram of a parameter configuration process in one embodiment of the foregoing distributed Femto base station networking system.
  • a distributed Femto base station networking system includes a Femto base station unit pool 100, a centralized control module 200, an indoor coverage module 300, and an outdoor coverage module 400.
  • the Femto base station unit pool 100 includes multiple Femto base station units;
  • Each Femto base station unit is connected to the centralized control module 200, the indoor coverage module 300 and the outdoor coverage module 400 are connected to the centralized control module 200, and each Femto base station unit is connected to an external core network, respectively;
  • the centralized control module 200 sends its own optical port parameters to the indoor coverage module 300, outdoor coverage module 400, and each Femto base station unit.
  • the indoor coverage module 300, outdoor coverage module 400, and each Femto base station unit are respectively based on the received optical port parameters and their own level.
  • the serial number information is obtained from a preset IP address planning pool for an IP address that communicates with the centralized control module 200.
  • the entire distributed Femto base station networking system can be divided into a capacity side and a coverage side.
  • the capacity side includes a Femto base station unit pool and a centralized control module 200.
  • the coverage side includes an indoor coverage module 300 and an outdoor coverage module 400. The side is used to meet the user's capacity needs, and the coverage side is used to provide indoor and outdoor coverage needs.
  • the Femto base station unit pool includes a plurality of Femto base station units, and these Femto base station units are respectively connected to the centralized control module 200 and independently implement their respective functions.
  • the Femto base station unit establishes a connection with the external core network via the backhaul network, and is used to provide baseband signals of a certain communication system. By upgrading the software, it can provide the required communication system source and communication system. It can include time division multiple access, frequency division multiple access, code division multiple access, TD-LTE, FD-LTE, etc.
  • Different Femto base station units can support different communication systems, thereby achieving the coverage of multiple communication systems.
  • Femto The communication system parameters supported by the base station unit can be stored in the centralized control module 200 in association with their identification identifiers, so that the centralized control module 200 can well control multiple Femto base station units.
  • the Femto base station unit is used to receive the downlink IP backhaul data sent by the core network, and perform downlink protocol and baseband processing on the downlink IP backhaul data to obtain the downlink baseband signal, which will obtain the downlink baseband signal.
  • the Femto base station unit is used to perform uplink baseband and protocol processing on the received uplink baseband signal to obtain uplink IP backhaul data and send it to the core network through the backhaul network.
  • the centralized control module 200 is used to manage and control other components (including a plurality of Femto base station units, an indoor coverage module 300, and an outdoor coverage module 400), and coordinately control them to implement their respective functions. Specifically, the centralized control module 200 sends its own optical port parameters (such as the optical port number) to the indoor coverage module 300, outdoor coverage module 400, and each Femto base station unit, and the indoor coverage module 300, outdoor coverage module 400, and each Femto base station unit respectively According to the received optical port parameters and the information of the number of cascades, it obtains an IP address to communicate with the centralized control module 200 from the preset IP address planning pool, and each component establishes communication with the centralized control module 200 according to the obtained IP address. .
  • optical port parameters such as the optical port number
  • the centralized control module 200 may be connected to a plurality of Femto base station units through a specific medium, for example, it may be through an optical fiber or a category 5/6 category network cable / cable.
  • the centralized control module 200 is used for downlink baseband signals of multiple Femto base station units, and after combining the multiple downlink baseband signals according to the actual cell configuration, it is sent to the corresponding indoor coverage module 300 and Outdoor coverage module 400;
  • the centralized control module 200 is configured to receive the uplink baseband signals of the indoor coverage module 300 and the outdoor coverage module 400 according to the actual cell configuration, and will belong to the uplink baseband of the same Femto base station unit.
  • the centralized control module 200 uses a standard CPRI (Common Public Radio Interface) protocol to implement uplink and downlink baseband signals with the Femto base station unit, the indoor coverage module 300, and the outdoor coverage module 400. 2. Processing of upper and lower IP backhaul data and monitoring data.
  • CPRI Common Public Radio Interface
  • the indoor coverage module 300 is used to provide indoor coverage requirements.
  • the indoor coverage module 300 may include multiple indoor exchange units and multiple indoor remote units.
  • a single indoor exchange unit is connected to multiple indoor remote units.
  • it may include M indoor exchange units, and each indoor exchange unit is connected to N indoor units.
  • the remote unit is connected, that is, the indoor coverage module 300 includes M indoor switching units and MN indoor remote units.
  • the indoor switching unit is used to take out the required downlink Femto baseband signal from the combined downlink baseband signal according to the supported actual working Femto base station unit cell number, and send it after relevant processing. Give the corresponding indoor remote unit to achieve indoor coverage.
  • the indoor exchange unit is used to receive multiple indoor remote units and the next-level indoor exchange unit according to the supported actual working Femto base station unit cell number.
  • the uplink baseband signal is sent to the centralized control module 200 after being combined, and the indoor remote unit is used to convert the uplink radio frequency signal received from the terminal device into an uplink baseband signal and send it to the indoor switching unit.
  • the outdoor coverage module 400 is used to provide outdoor coverage requirements.
  • the outdoor cover module 400 may include multiple outdoor switching units and multiple outdoor remote units.
  • a single outdoor switching unit is connected to multiple outdoor remote units.
  • it may include P outdoor switching units, and each outdoor switching unit is connected to Q outdoor units.
  • the remote unit is connected, that is, the outdoor cover module 400 includes P outdoor switching units and PQ outdoor remote units.
  • the outdoor switching unit is used to take out the required downlink Femto baseband signal from the combined downlink baseband signal according to the supported actual working Femto base station unit cell number, and send it after relevant processing.
  • the outdoor switching unit is used to receive multiple outdoor remote units and the next
  • the uplink baseband signal of the outdoor switching unit is sent to the centralized control module 200 after being combined for processing.
  • the outdoor remote unit is used to convert the received uplink RF signal of the terminal device into an uplink baseband signal after processing and send it to Outdoor exchange unit.
  • the above-mentioned distributed Femto base station networking system includes a Femto base station unit pool, a centralized control module 200, an indoor coverage module 300, and an outdoor coverage module 400.
  • the Femto base station unit pool includes multiple Femto base station units, and the centralized control module 200 sends its own optical port parameters.
  • To the indoor coverage module 300, outdoor coverage module 400, and each Femto base station unit, the indoor coverage module 300, outdoor coverage module 400, and each Femto base station unit are preset from presets based on the received optical port parameters and their cascaded level information.
  • the IP address planning pool obtains an IP address that communicates with the centralized control module 200, and establishes communication with the centralized control module 200 through the obtained IP addresses.
  • the centralized control module 200 can control each Femto base station unit, indoor coverage module 300, and outdoor coverage module 400. Efficiently achieve indoor and outdoor medium and large scene communication coverage.
  • the centralized control module 200 in the distributed Femto base station networking system mentioned above numbers all its optical ports and sends the control word of the CPRI protocol to the connected Femto base station units, indoor switching units, and In the outdoor switching unit, after each network element obtains the position information of the optical port connected to the control module, the corresponding communication IP obtained from the planned IP address pool is combined with the information of the cascade connected to it to obtain the corresponding communication IP. After that, the communication IP is used to establish a TCP (Transmission Control Protocol) communication connection with a custom protocol with the centralized control module 200, and the entire information interaction process is completed through request and response methods to increase the reliability of information transmission.
  • the interactive information includes device status, cell parameters, delay calibration, and control parameters.
  • the Femto base station unit is configured to send the information of the communication system supporting the centralized control module 200 to the centralized control module 200 when establishing communication with the centralized control module 200; Interface parameters, and each Femto base unit supports the communication system.
  • Cell numbers are assigned to each Femto base unit, and according to the cell processing capabilities of each indoor exchange unit and each outdoor exchange unit, it is configured to support transmission with each indoor exchange unit and each outdoor exchange unit. Femto base unit cell number.
  • the above-mentioned distributed Femto base station networking system can also achieve the coverage of different communication standards.
  • the Femto base station unit After the Femto base station unit establishes a communication connection with the centralized control module 200, it informs the centralized control module 200 of the communication standard information, and the centralized control module 200 Connected optical port location and cell format information, cell number the Femto base station unit, and configure the Femto base station unit cell number supported by the indoor switch unit and outdoor switch unit for transmission based on the cell processing capabilities supported by the indoor switch unit and outdoor switch unit To provide information sources required by each of the indoor exchange units and each of the outdoor exchange units.
  • the centralized control module 200 configures the indoor coverage module 300 to support the actual working Femto base station unit cell number according to the communication system supported by the indoor coverage module 300.
  • the centralized control module 200 configures the outdoor coverage according to the communication system supported by the outdoor coverage module 400.
  • the module 400 supports the actual working Femto base station unit cell, thereby achieving Femto communication signal coverage of the indoor coverage module 300 and the outdoor coverage module 400 corresponding to the standard.
  • the centralized control module 200 combines the corresponding Femto downlink baseband signals according to the cell number of the Femto base station unit supported by the indoor switching unit and sends it to the indoor switching unit; the centralized control module 200 according to the outdoor
  • the Femto base station unit cell number supported by the switching unit combines the corresponding Femto downlink baseband signals and sends them to the outdoor switching unit.
  • the indoor switching unit sends the downlink baseband signals from the combination according to the actual working Femto base station unit cell number supported. In the process, the required downlink Femto baseband signal is taken out and sent to the corresponding indoor remote unit to achieve indoor coverage after relevant processing.
  • the outdoor switching unit starts from the combined downlink baseband based on the supported Femto base station unit cell number. Among the signals, the required downlink Femto baseband signal is taken out and sent to the corresponding outdoor remote unit after relevant processing to achieve outdoor coverage.
  • the indoor remote unit converts the received uplink radio frequency signal of the terminal device into an uplink baseband signal and sends it to the indoor switching unit; the indoor switching unit works according to the actual supported Femto base station unit Cell number, which will receive the uplink baseband signals of multiple indoor remote units and the next-level indoor switching unit, and send them to the centralized control module 200 after combined processing.
  • the outdoor remote unit will receive the received terminal equipment.
  • the uplink RF signal is processed into an uplink baseband signal and sent to an outdoor switching unit.
  • the outdoor switching unit based on the actual working Femto base station unit cell number, will receive multiple outdoor remote units and the next one.
  • the uplink baseband signal of the outdoor switching unit at the first stage is sent to the centralized control module 200 after being combined.
  • the centralized control module 200 After receiving the uplink baseband signals from the indoor switching unit and outdoor switching unit, the centralized control module 200 performs The unit supports the Femto base station unit cell number to be transmitted, and the corresponding combination is performed. After the treatment, the base unit transmits to the corresponding Femto; after Femto base unit, the received uplink signal to baseband uplink baseband and protocol processing to the uplink backhaul IP data and transmits to the core network via the backhaul network.
  • the Femto base station unit includes a first routing unit, a protocol data processing unit, and a first baseband data processing unit.
  • the first routing unit is connected to the external core network and the next-level Femto base station unit.
  • the protocol data processing unit is connected to the first routing unit.
  • the first routing unit is configured to receive downlink IP backhaul data from the core network and send uplink IP backhaul data to the core network.
  • the protocol data processing unit is used to receive uplink and downlink IP backhaul data and perform uplink and downlink IP backhaul data.
  • the first baseband data processing unit is configured to receive uplink and downlink baseband data and process the uplink and downlink baseband data.
  • the Femto base station unit further includes a first monitoring unit.
  • the first routing unit is connected to the first baseband data processing unit through the first monitoring unit, and the first monitoring unit is connected to the protocol data processing unit. connection.
  • the first monitoring unit is configured to perform real-time monitoring and operation on the first routing unit, the protocol data processing unit, and the first baseband data processing unit.
  • the Femto base station unit further includes a first clock unit, and the first clock unit is connected to the first baseband data processing unit.
  • the first clock unit is configured to provide a system working clock for the first baseband data processing unit.
  • the first monitoring unit is further configured to monitor and operate the first clock unit in real time.
  • the centralized control module 200 includes a second routing unit and a second baseband data processing unit connected to each other.
  • the second baseband data processing unit is connected to the first baseband data processing unit.
  • the routing unit is connected to the external core network.
  • the second routing unit is configured to provide a second backhaul route for the Femto base station unit.
  • the second baseband data processing unit is configured to receive uplink and downlink baseband data and process the uplink and downlink baseband data.
  • the centralized control module 200 further includes a second clock unit and a second monitoring unit.
  • the second clock unit is connected to the second baseband data processing unit, and the second monitoring unit is connected to the second The routing unit and the second baseband data processing unit are connected.
  • the second clock unit is configured to provide a system working clock for the second baseband data processing unit.
  • the second monitoring unit is configured to perform status monitoring and operation on the second routing unit, the second baseband data processing unit, and the second clock unit in real time.
  • each Femto base station unit can provide its own backhaul channel for uplink and downlink IP backhaul data through its own routing unit, and can also provide cascaded next-level Femto base station units.
  • the channel for the uplink and downlink IP backhaul data When there are multiple Femto base station units for multi-standard mixed networking or capacity expansion, the Femto base station units are cascaded through a specific medium, and the Femto base station unit of the centralized control center provides unified access for backhaul.
  • the network can realize the uplink and downlink IP backhaul data backhaul of each Femto base station unit. This is the first backhaul route.
  • the centralized control module 200 also includes a routing unit, which can communicate with the backhaul network. This is the second backhaul route.
  • the centralized control module 200 reports its connection status with the backhaul network to each Femto base station unit in real time.
  • the unit detects that the first backhaul route is unreachable and the second backhaul route is connected, the unit returns the I through the IP backhaul channel in the CPRI of the centralized control module 200.
  • the P backhaul data is sent to the centralized control module 200 and forwarded by the centralized control module 200 to the backhaul network, thereby realizing the transmission of the backhaul data and improving the robustness of the network backhaul of the entire system.
  • the Femto base station unit is further configured to send an activation status message to the centralized control module 200 during activation; the centralized control module 200 is further configured to traverse the indoor switching unit or outdoor that has been accessed when receiving the activation status message.
  • the Femto base station unit cell configured by the switching unit determines whether the Femto base station unit cell currently configured by the indoor switching unit or outdoor switching unit currently connected includes the Femto base station unit that currently sends the activation status message.
  • the cell parameters, delay calibration parameters, and control parameters of the Femto base station unit are sent to the indoor exchange unit or outdoor exchange unit. If not, the Femto base unit unit configured by the next accessed indoor exchange unit or outdoor exchange unit is re-used.
  • the Femto base unit unit configured by the currently connected indoor or outdoor exchange unit returns a judgment to determine whether the Femto base unit unit configured by the currently connected indoor or outdoor exchange unit includes the Femto base unit currently sending the activation status message Operation.
  • the activation status is notified to the centralized control module 200.
  • the centralized control module 200 traverses the established TCP communication one by one.
  • the Femto working cell configuration of the connected indoor or outdoor switching unit determines whether the Femto working cell configured by the indoor or outdoor switching unit includes the Femto base station activated by the cell; if not, it traverses the next indoor or outdoor switching unit or outdoor.
  • the cell parameters, delay calibration parameters and control parameters of the Femto base station unit activated by the cell are issued to the traversed indoor exchange unit or outdoor exchange unit, indoor exchange unit or outdoor exchange
  • the unit forwards the received parameters to the corresponding remote unit, and finally achieves indoor or outdoor signal coverage of the Femto base station unit.
  • the first-level Femto base station unit can provide a backhaul channel for uplink and downlink IP backhaul data through its first routing unit, and can also provide a cascaded next-level Femto base station unit.
  • the channel for uplink and downlink IP backhaul data When there are multiple Femto base units for multi-standard mixed networking or expansion, the Femto base units are cascaded through a specific medium, and the first-level Femto base unit provides unified access for backhaul.
  • the second control module centrally
  • the routing unit can also communicate with the backhaul network. This is the second backhaul route.
  • the centralized control module reports its connection status with the backhaul network to each Femto base station unit in real time. Each Femto base station unit detects the first backhaul route.
  • the IP return data can be sent through the IP return channel in the common public radio interface protocol with the centralized control module.
  • Centralized control module forwarded by the central control module to the backhaul network, transmission of return data, improve the robustness of the network backhaul.
  • the distributed Femto base station networking system described above has effectively integrated the Femto base station unit pool, indoor coverage system, and outdoor coverage system by introducing a centralized control center, and achieved multi-standard indoor and outdoor co-coverage based on Femto. system.
  • a centralized control center you can select the Femto base station unit corresponding to the standard according to the standard supported by the indoor and outdoor coverage system.
  • the existing indoor and outdoor systems can make full use of the existing indoor and outdoor systems, and only need to upgrade the existing indoor and outdoor coverage systems to transform the deployed indoor or outdoor systems based on coupled macro network signals into indoors based on Femto. Or an outdoor coverage system, docking with a centralized control unit, to achieve an outdoor indoor and outdoor coverage system based on a Femto source. In this case, there is no need to repeat the deployment and construction, and the existing resources can be used more effectively. Under the condition of ensuring the existing investment, the user capacity of the entire system can be expanded to meet the coverage requirements of medium and large scenarios.

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Abstract

本申请提供一种分布式Femto基站组网系统，包括Femto基站单元池、集中控制模块、室内覆盖模块以及室外覆盖模块，所述Femto基站单元池包括多个Femto基站单元，集中控制模块发送自身光口参数至所述室内覆盖模块、所述室外覆盖模块以及各所述Femto基站单元，所述室内覆盖模块、所述室外覆盖模块以及各所述Femto基站单元分别根据接收到的光口参数以及自身级连的级数信息，从预设IP地址规划池中获取与所述集中控制模块通信的IP地址，分别通过获取的IP地址与集中控制模块建立通信，集中控制模块可以控制各Femto基站单元、室内覆盖模块以及室外覆盖模块高效实现室内室外中大场景通信覆盖。

Description

分布式Femto基站组网系统 技术领域
本申请涉及通信技术领域，特别是涉及一种分布式Femto基站组网系统。
背景技术
随着无线通信技术的快速发展，在目前的无线通信领域中，形成了2G/3G/4G并存的局面。但是，在地下商场、隧道、城中村等场所，无论是室内还是室外覆盖场景，都还存在着大量的信号盲区和弱区网络覆盖问题。Femto基站作为一种低功率的无线接入节点，可通过标准的有线连接接入回传网络，并进一步连接到运营商的核心网，为室内或室外用户提供各种业务的无线接入服务，可以提高整个网络的系统容量，并提供高速率的服务业务，以及更好的用户体验。而随着互联网宽带业务的广泛普及，宽带接入越来越方便，Femto的应用也会越来越广，包括热点覆盖、企业内部覆盖以及家庭覆盖等。
但是，单个Femto的发射功率小，所覆盖的范围有限，无法满足室内室外中大场景的覆盖需求，由此产生了利用Femto进行分布式覆盖的应用。然而传统的分布式Femto组网架构复杂，形成的分布式Femto组网会增加重选、切换、频谱资源等开销，无法高效实现室内室外中大场景通信覆盖。
发明内容
基于此，有必要针对上述技术问题，提供一种可以高效实现室内室外中大场景通信覆盖的分布式Femto基站组网系统。
一种分布式Femto基站组网系统，包括Femto基站单元池、集中控制模块、室内覆盖模块以及室外覆盖模块，所述Femto基站单元池包括多个Femto基站单元；
各所述Femto基站单元分别与所述集中控制模块连接，所述室内覆盖模块以及所述室外覆盖模块分别与所述集中控制模块连接，各所述Femto基站单元分别与外部核心网连接，提供系统所需通信制式的信源；
所述集中控制模块发送自身光口参数至所述室内覆盖模块、所述室外覆盖模块以及各所述Femto基站单元，所述室内覆盖模块、所述室外覆盖模块以及各所述Femto基站单元分别根据接收到的光口参数以及自身级连的级数信息，从预设IP地址规划池中获取与所述集中控制模块通信的IP地址。
在其中一个实施例中，所述集中控制模块加载有通用公共无线电接口协议。
在其中一个实施例中，所述Femto基站单元包括第一路由单元、协议数据处理单元以及第一基带数据处理单元；
所述第一路由单元与所述外部核心网以及下一级所述Femto基站单元连接，所述协议数据处理单元与所述第一路由单元连接。
在其中一个实施例中，所述Femto基站单元还包括第一监控单元，所述第一路由单元通过所述第一监控单元与所述第一基带数据处理单元连接，所述第一监控单元与所述协议数据处理单元连接。
在其中一个实施例中，所述Femto基站单元还包括第一时钟单元，所述第一时钟单元与所述第一基带数据处理单元连接。
在其中一个实施例中，所述集中控制模块包括相互连接的第二路由单元以及第二基带数据处理单元；
所述第二基带数据处理单元与所述第一基带数据处理单元连接，所述第二路由单元与所述外部核心网连接。
在其中一个实施例中，所述集中控制模块还包括第二时钟单元和第二监控单元，所述第二时钟单元与所述第二基带数据处理单元连接，所述第二监控单元分别与所述第二路由单元以及所述第二基带数据处理单元连接。
在其中一个实施例中，所述室内覆盖模块包括多个分布式设置的室内交换单元，所述室外覆盖模块包括多个分布式设置的室外交换单元。
在其中一个实施例中，所述Femto基站单元用于当与所述集中控制模块建立通信时，发送自身支持通信制式信息至所述集中控制模块；所述集中控制模块还用于根据与各所述Femto基站单元连接的光口参数以及各所述Femto基站单元支持通信制式，对各所述Femto基站单元进行小区编号，并根据各所述室内交换单元以及各所述室外交换单元的小区处理能力，配置与各所述室内交换 单元以及各所述室外交换单元支持传输的Femto基站单元小区编号。
在其中一个实施例中，所述Femto基站单元还用于激活时，发送激活状态消息至所述集中控制模块；所述集中控制模块还用于当接收所述激活状态消息时，遍历已接入的所述室内交换单元或所述室外交换单元配置的Femto基站单元小区编号，判断当前已接入的所述室内交换单元或所述室外交换单元配置的Femto基站单元小区是否包括当前发送激活状态消息的所述Femto基站单元，若是，则将当前发送激活状态消息的Femto基站单元的小区参数、时延校准参数和控制参数发送至所述室内交换单元或所述室外交换单元，若否，则将下一个已接入的所述室内交换单元或所述室外交换单元配置的Femto基站单元小区重新作为当前已接入的所述室内交换单元或所述室外交换单元配置的Femto基站单元小区，返回所述判断当前已接入的所述室内交换单元或所述室外交换单元配置的Femto基站单元小区是否包括当前发送激活状态消息的所述Femto基站单元的操作；
在其中一个实施例中，所述Femto基站单元内置有第一路由单元，所述第一路由单元用于提供上下行IP回传数据的回传通道，并为级连的下一级Femto基站单元提供上下行IP回传数据的通道，且当存在多个所述Femto基站单元进行多制式混合组网或扩容时，由第一级的Femto基站单元统一接入回传网络，构建第一回传路由；
所述集中控制模块内置有第二路由单元，所述第二路由单元接入所述回传网络，构成第二回传路由，所述集中控制模块实时将所述第二路由单元与所述回传网络的连通状态告之各所述Femto基站单元，当各所述Femto基站单元检测到第一回传路由不通，且第二回传路由连通时，将IP回传数据发送到集中控制模块，由集中控制模块转发至所述回传网络。
上述分布式Femto基站组网系统，包括Femto基站单元池、集中控制模块、室内覆盖模块以及室外覆盖模块，所述Femto基站单元池包括多个Femto基站单元，集中控制模块发送自身光口参数至所述室内覆盖模块、所述室外覆盖模块以及各所述Femto基站单元，所述室内覆盖模块、所述室外覆盖模块以及各所述Femto基站单元分别根据接收到的光口参数以及自身级连的级数信息，从 预设IP地址规划池中获取与所述集中控制模块通信的IP地址，分别通过获取的IP地址与集中控制模块建立通信，集中控制模块可以控制各Femto基站单元、室内覆盖模块以及室外覆盖模块高效实现室内室外中大场景通信覆盖。
附图说明
图1为上述分布式Femto基站组网系统其中一个实施例的结构示意图；
图2为上述分布式Femto基站组网系统其中一个实施例中Femto基站单元和集中控制模块结构示意图；
图3为上述分布式Femto基站组网系统其中一个实施例中回传路由架构示意图；
图4为上述分布式Femto基站组网系统其中一个实施例中参数配置流程示意图。
具体实施方式
如图1所示，一种分布式Femto基站组网系统，包括Femto基站单元池100、集中控制模块200、室内覆盖模块300以及室外覆盖模块400，Femto基站单元池100包括多个Femto基站单元；
各Femto基站单元分别与集中控制模块200连接，室内覆盖模块300以及室外覆盖模块400分别与集中控制模块200连接，各Femto基站单元分别与外部核心网连接；
集中控制模块200发送自身光口参数至室内覆盖模块300、室外覆盖模块400以及各Femto基站单元，室内覆盖模块300、室外覆盖模块400以及各Femto基站单元分别根据接收到的光口参数以及自身级连的级数信息，从预设IP地址规划池中获取与集中控制模块200通信的IP地址。
简单来说，整个分布式Femto基站组网系统可以划分为容量侧和覆盖侧，容量侧包括Femto基站单元池和集中控制模块200，覆盖侧包括室内覆盖模块300以及室外覆盖模块400，其中，容量侧用于满足用户的容量需求，覆盖侧用于提供室内和室外的覆盖需求。
Femto基站单元池中包括有多个Femto基站单元，这些Femto基站单元分别与集中控制模块200连接，独立实现各自的功能。在实际应用中，Femto基站单元，经回传网络，与外部核心网建立连接，用于提供某一通信制式的基带信号，并且通过升级软件，即可提供所需的通信制式信源，通信制式可以包括时分多址、频分多址、码分多址、TD-LTE、FD-LTE等，不同的Femto基站单元可以分别支持不同的通信制式，从而实现多种通信制式的覆盖，另外，Femto基站单元支持的通信制式参数可以与其身份识别标识关联存储于集中控制模块200，以便集中控制模块200对多个Femto基站单元良好管控。更进一步的，在下行链路中，Femto基站单元用于接收核心网络发送的下行IP回传数据，并对下行IP回传数据进行下行协议和基带处理，得到下行基带信号，将得到下行基带信号发送到集中控制模块200；在上行链路中，Femto基站单元用于将接收的上行基带信号进行上行基带和协议处理后，得到上行IP回传数据，并通过回传网络发送给核心网。
集中控制模块200用于对其他组件(包括多个Femto基站单元、室内覆盖模块300以及室外覆盖模块400)进行管控，协调控制其实现各自功能。具体来说，集中控制模块200发送自身光口参数(例如光口编号)至室内覆盖模块300、室外覆盖模块400以及各Femto基站单元，室内覆盖模块300、室外覆盖模块400以及各Femto基站单元分别根据接收到的光口参数以及自身级连的级数信息，从预设IP地址规划池中获取与集中控制模块200通信的IP地址，各组件根据获取到的IP地址与集中控制模块200建立通信。在实际应用中，集中控制模块200可以通过特定介质与多个Femto基站单元连接，例如可以通过光纤或5类/6类网线/电缆等。在下行链路中，集中控制模块200用于多个Femto基站单元的下行基带信号，并根据实际的小区配置，将多个下行基带信号进行合路处理后，发送到对应的室内覆盖模块300以及室外覆盖模块400；在上行链路中，集中控制模块200用于将接收到的室内覆盖模块300以及室外覆盖模块400的上行基带信号，根据实际的小区配置，将属于同一Femto基站单元的上行基带信号合路后，发送给对应的Femto基站单元。在其中一个实施例中，集中控制模块200使用标准的CPRI(Common Public Radio Interface，通用公共无线电接口) 协议，用于实现与Femto基站单元、室内覆盖模块300以及室外覆盖模块400进行上下行基带信号、上下IP回传数据和监控数据的处理。
室内覆盖模块300用于提供室内覆盖需求。室内覆盖模块300可以包括多个室内交换单元和多个室内远端单元，单个室内交换单元与多个室内远端单元连接，例如可以包括M个室内交换单元，每个室内交换单元与N个室内远端单元连接，即室内覆盖模块300包括M个室内交换单元和MN个室内远端单元。具体来说，在下行链路中，室内交换单元用于根据支持的实际工作Femto基站单元小区编号，从合路的下行基带信号中，取出所需的下行Femto基带信号，经过相关处理后，发送给到对应的室内远端单元，实现室内覆盖；在上行链路中，室内交换单元用于根据支持的实际工作Femto基站单元小区编号，将接收多个室内远端单元和下一级室内交换单元的上行基带信号，经过合路处理后，发送到集中控制模块200，室内远端单元用于将接收到终端设备的上行射频信号经过处理后，转换为上行基带信号，发送到室内交换单元。
室外覆盖模块400用于提供室外覆盖需求。室外覆盖模块400可以包括多个室外交换单元和多个室外远端单元，单个室外交换单元与多个室外远端单元连接，例如可以包括P个室外交换单元，每个室外交换单元与Q个室外远端单元连接，即室外覆盖模块400包括P个室外交换单元和PQ个室外远端单元。具体来说，在下行链路中，室外交换单元用于根据支持的实际工作Femto基站单元小区编号，从合路的下行基带信号中，取出所需的下行Femto基带信号，经过相关处理后，发送给到对应的室外远端单元，实现室外覆盖；在上行链路中，室外交换单元用于根据支持的实际工作Femto基站单元小区编号，将接收到的多个室外远端单元和下一级的室外交换单元的上行基带信号，经过合路处理后，发送到集中控制模块200，室外远端单元用于将接收到的终端设备的上行射频信号，经过处理后，转换为上行基带信号，发送到的室外交换单元。
上述分布式Femto基站组网系统，包括Femto基站单元池、集中控制模块200、室内覆盖模块300以及室外覆盖模块400，Femto基站单元池包括多个Femto基站单元，集中控制模块200发送自身光口参数至室内覆盖模块300、室外覆盖模块400以及各Femto基站单元，室内覆盖模块300、室外覆盖模块400以及各 Femto基站单元分别根据接收到的光口参数以及自身级连的级数信息，从预设IP地址规划池中获取与集中控制模块200通信的IP地址，分别通过获取的IP地址与集中控制模块200建立通信，集中控制模块200可以控制各Femto基站单元、室内覆盖模块300以及室外覆盖模块400高效实现室内室外中大场景通信覆盖。
在实际应用中，上述分布式Femto基站组网系统中集中控制模块200，对自身所有的光口进行编号，并且通过CPRI协议的控制字下发到与其连接的的Femto基站单元、室内交换单元和室外交换单元，各网元获取到与控制模块所连接的光口位置信息后，结合自身所级连的级数信息，从规划IP地址池中获取的对应的通信IP，获取到对应的通信IP后，用该通信IP与集中控制模块200建立自定义协议的TCP(Transmission Control Protocol，传输控制协议)通信连接，通过请求和响应的方式，完成整个信息的交互过程，增加信息传送的可靠性，交互的信息包括设备状态、小区参数、时延校准和控制参数。
在其中一个实施例中，Femto基站单元用于当与集中控制模块200建立通信时，发送自身支持通信制式信息至集中控制模块200；集中控制模块200还用于根据与各Femto基站单元连接的光口参数以及各Femto基站单元支持通信制式，对各Femto基站单元进行小区编号，并根据各室内交换单元以及各室外交换单元的小区处理能力，配置与各室内交换单元以及各室外交换单元支持传输的Femto基站单元小区编号。上述分布式Femto基站组网系统还可以实现不同通信制式的覆盖，Femto基站单元与集中控制模块200建立通信连接后，将通信制式信息告之集中控制模块200，集中控制模块200根据Femto基站单元与其连接的光口位置和小区制式信息，对Femto基站单元进行小区编号，并且根据室内交换单元和室外交换单元支持的小区处理能力，配置与室内交换单元和室外交换单元支持传输的Femto基站单元小区编号，以提供各所述室内交换单元以及各所述室外交换单元所需的信源。集中控制模块200根据室内覆盖模块300所支持的通信制式，配置该室内覆盖模块300支持实际的工作Femto基站单元小区编号，集中控制模块200根据室外覆盖模块400所支持的通信制式，配置该室外覆盖模块400支持实际的工作Femto基站单元小区，从而实现室内覆盖模块300和室外覆盖模块400对应制式的Femto通信信号覆盖。
具体来说，在下行链路：集中控制模块200根据室内交换单元支持传输的Femto基站单元小区编号，将对应的Femto下行基带信号合路处理后，发送到室内交换单元；集中控制模块200根据室外交换单元支持传输的Femto基站单元小区编号，将对应的Femto下行基带信号合路处理后，发送给室外交换单元；室内交换单元根据支持的实际工作Femto基站单元小区编号，从合路的下行基带信号中，取出所需的下行Femto基带信号，经过相关处理后，发送给到对应的室内远端单元，实现室内覆盖；室外交换单元根据支持的实际工作Femto基站单元小区编号，从合路的下行基带信号中，取出所需的下行Femto基带信号，经过相关处理后，发送给到对应的室外远端单元，实现室外覆盖。在上行链路：的室内远端单元，将接收到终端设备的上行射频信号经过处理后，转换为上行基带信号，发送到的室内交换单元；的室内交换单元，根据支持的实际工作Femto基站单元小区编号，将接收多个室内远端单元和下一级的室内交换单元的上行基带信号，经过合路处理后，发送到集中控制模块200；的室外远端单元，将接收到的终端设备的上行射频信号，经过处理后，转换为上行基带信号，发送到的室外交换单元；的室外交换单元，根据支持的实际工作Femto基站单元小区编号，将接收到的多个室外远端单元和下一级的室外交换单元的上行基带信号，经过合路处理后，发送到集中控制模块200；集中控制模块200接收到室内交换单元和室外交换单元到的上行基带信号后，根据室内交换单元和室外交换单元支持传输的Femto基站单元小区编号，进行相应的合路处理后，发送给对应的Femto基站单元；Femto基站单元，将接收到的上行基带信号进行上行基带和协议处理后，得到上行IP回传数据，并通过回传网络发送给核心网。
如图2所示，在其中一个实施例中，Femto基站单元包括第一路由单元、协议数据处理单元以及第一基带数据处理单元，第一路由单元与外部核心网以及下一级Femto基站单元连接，协议数据处理单元与第一路由单元连接。
第一路由单元用于接收核心网的下行IP回传数据以及将上行IP回传数据发送到核心网，协议数据处理单元用于接收上下行IP回传数据，并对上下行IP回传数据进行协议处理，第一基带数据处理单元用于接收上下行基带数据，并对上下行基带数据进行处理。
如图2所示，在其中一个实施例中，Femto基站单元还包括第一监控单元，第一路由单元通过第一监控单元与第一基带数据处理单元连接，第一监控单元与协议数据处理单元连接。
第一监控单元用于实时对第一路由单元、协议数据处理单元、第一基带数据处理单元进行状态监控和操作。
如图2所示，在其中一个实施例中，Femto基站单元还包括第一时钟单元，第一时钟单元与第一基带数据处理单元连接。
第一时钟单元用于为第一基带数据处理单元提供系统工作时钟。非必要的，第一监控单元还用于实时对第一时钟单元进行状态监控和操作。
如图2所示，在其中一个实施例中，集中控制模块200包括相互连接的第二路由单元以及第二基带数据处理单元，第二基带数据处理单元与第一基带数据处理单元连接，第二路由单元与外部核心网连接。
第二路由单元用于为Femto基站单元提供第二回传路由。第二基带数据处理单元用于接收上下行基带数据，并对上下行基带数据进行处理。
如图2所示，在其中一个实施例中，集中控制模块200还包括第二时钟单元和第二监控单元，第二时钟单元与第二基带数据处理单元连接，第二监控单元分别与第二路由单元以及第二基带数据处理单元连接。
第二时钟单元用于为第二基带数据处理单元提供系统工作时钟。第二监控单元用于实时对第二路由单元、第二基带数据处理单元以及第二时钟单元进行状态监控和操作。
如图3所示，在实际应用中，每个Femto基站单元通过自身的路由单元，可为自身提供上下行IP回传数据的回传通道，还可为级连的下一级Femto基站单元提供上下行IP回传数据的通道，在存在多个Femto基站单元进行多制式混合组网或扩容时，Femto基站单元通过特定介质进行级连，由集中控制中心的Femto基站单元，统一接入回传网络，实现各个Femto基站单元的上下行IP回传数据回传，此为第一回传路由；同时，为保障回传通道的可靠性，避免出现由于第一回传路由故障导致的整个系统异常情况，集中控制模块200也包括路由单元，可与回传网络连通，此为第二回传路由；集中控制模块200实时将其 与回传网络的连通状态告之各Femto基站单元，在Femto基站单元检测到第一回传路由不通，且第二回传路由连通的情况下，则通过与集中控制模块200的CPRI中的IP回传通道，将IP回传数据发送到集中控制模块200，由集中控制模块200转发到回传网络，从而实现回传数据的传输，提高整个系统网络回传的鲁棒性。
在其中一个实施例中，Femto基站单元还用于激活时，发送激活状态消息至集中控制模块200；集中控制模块200还用于当接收激活状态消息时，遍历已接入的室内交换单元或室外交换单元配置的Femto基站单元小区，判断当前已接入的室内交换单元或室外交换单元配置的Femto基站单元小区是否包括当前发送激活状态消息的Femto基站单元，若是，则将当前发送激活状态消息的Femto基站单元的小区参数、时延校准参数和控制参数发送至室内交换单元或室外交换单元，若否，则将下一个已接入的室内交换单元或室外交换单元配置的Femto基站单元小区重新作为当前已接入的室内交换单元或室外交换单元配置的Femto基站单元小区，返回判断当前已接入的室内交换单元或室外交换单元配置的Femto基站单元小区是否包括当前发送激活状态消息的Femto基站单元的操作。
如图4所示，在上述实施例中，Femto基站单元小区激活后，将激活状态告之集中控制模块200，集中控制模块200接收到Femto基站单元的小区激活指示后，逐个遍历已建立TCP通信连接的室内交换单元或室外交换单元的Femto工作小区配置，判断室内交换单元或室外交换单元配置的Femto工作小区是否包括该小区激活的Femto基站单元；若否，则遍历下一个室内交换单元或室外交换单元，直到全部遍历结束；若是，则将该小区激活的Femto基站单元的小区参数、时延校准参数和控制参数，下发给遍历的室内交换单元或室外交换单元，室内交换单元或室外交换单元将接收到的参数转发到对应的远端单元，最后实现该Femto基站单元室内或室外的信号覆盖。
在其中一个实施例中，第一级的Femto基站单元可通过自身的第一路由单元，为自身提供上下行IP回传数据的回传通道，还可为级连的下一级Femto基站单元提供上下行IP回传数据的通道，在存在多个Femto基站单元进行多制式 混合组网或扩容时，Femto基站元通过特定介质进行级连，由第一级的Femto基站单元，统一接入回传网络，实现各Femto基站单元的上下行IP回传数据回传，此为第一回传路由；同时，为避免出现由于第一回传路由故障导致的整个系统异常情况，集中控制模块的第二路由单元，也可与回传网络连通，此为第二回传路由；集中控制模块实时将其与回传网络的连通状态告之各Femto基站单元，各Femto基站单元检测到第一回传路由不通，且第二回传路由连通的情况下，可通过与集中控制模块的通用公共无线电接口协议中的IP回传通道，将IP回传数据发送到集中控制模块，由集中控制模块转发到回传网络，实现回传数据的传输，提高系统网络回传的鲁棒性。
整体来说，上述分布式Femto基站组网系统，通过引入集中控制中心，将Femto基站单元池、室内覆盖系统和室外覆盖系统进行了有效的融合，实现了基于Femto的多制式室内外共覆盖的系统。通过集中控制中心，可以根据室内室外覆盖系统支持的制式，选择对应制式的Femto基站单元，也可以根据扩容的需求，增加Femto基站单元，避免了需要多套系统进行多制式覆盖和扩容，所带来的设备、布网、施工和维护成本的浪费，节省运营商的系统部署成本。同时，可充分利用现有的室内室外系统，仅需对现有的室内和室外覆盖系统进行软件升级，即可将已部署的基于耦合宏网信号的室内或室外系统，改造为基于Femto的室内或室外覆盖系统，与集中控制单元实现的对接，实现基于Femto信源的室外内室外覆盖系统。在这种情况下，不需再重复进行部署施工，可更加有效的利用已有资源，在保障已有投资的情况下，扩大整个系统用户容量，满足中大场景的覆盖需求。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (11)

  1. 一种分布式Femto基站组网系统，其特征在于，包括Femto基站单元池、集中控制模块、室内覆盖模块以及室外覆盖模块，所述Femto基站单元池包括多个Femto基站单元；
    各所述Femto基站单元分别与所述集中控制模块连接，所述室内覆盖模块以及所述室外覆盖模块分别与所述集中控制模块连接，各所述Femto基站单元分别与外部核心网连接，提供系统所需通信制式的信源；
    所述集中控制模块发送自身光口参数至所述室内覆盖模块、所述室外覆盖模块以及各所述Femto基站单元，所述室内覆盖模块、所述室外覆盖模块以及各所述Femto基站单元分别根据接收到的光口参数以及自身级连的级数信息，从预设IP地址规划池中获取与所述集中控制模块通信的IP地址。
  2. 根据权利要求1分布式Femto基站组网系统，其特征在于，所述集中控制模块加载有通用公共无线电接口协议。
  3. 根据权利要求1分布式Femto基站组网系统，其特征在于，所述Femto基站单元包括第一路由单元、协议数据处理单元以及第一基带数据处理单元；
    所述第一路由单元与所述外部核心网以及下一级所述Femto基站单元连接，所述协议数据处理单元与所述第一路由单元连接。
  4. 根据权利要求3分布式Femto基站组网系统，其特征在于，所述Femto基站单元还包括第一监控单元，所述第一路由单元通过所述第一监控单元与所述第一基带数据处理单元连接，所述第一监控单元与所述协议数据处理单元连接。
  5. 根据权利要求3或4分布式Femto基站组网系统，其特征在于，所述Femto基站单元还包括第一时钟单元，所述第一时钟单元与所述第一基带数据处理单元连接。
  6. 根据权利要求3分布式Femto基站组网系统，其特征在于，所述集中控制模块包括相互连接的第二路由单元以及第二基带数据处理单元；
    所述第二基带数据处理单元与所述第一基带数据处理单元连接，所述第二路由单元与所述外部核心网连接。
  7. 根据权利要求6分布式Femto基站组网系统，其特征在于，所述集中控制模块还包括第二时钟单元和第二监控单元，所述第二时钟单元与所述第二基带数据处理单元连接，所述第二监控单元分别与所述第二路由单元以及所述第二基带数据处理单元连接。
  8. 根据权利要求1分布式Femto基站组网系统，其特征在于，所述室内覆盖模块包括多个分布式设置的室内交换单元，所述室外覆盖模块包括多个分布式设置的室外交换单元。
  9. 根据权利要求8分布式Femto基站组网系统，其特征在于，所述Femto基站单元用于当与所述集中控制模块建立通信时，发送自身支持通信制式信息至所述集中控制模块；所述集中控制模块还用于根据与各所述Femto基站单元连接的光口参数以及各所述Femto基站单元支持通信制式，对各所述Femto基站单元进行小区编号，并根据各所述室内交换单元以及各所述室外交换单元的小区处理能力，配置与各所述室内交换单元以及各所述室外交换单元支持传输的Femto基站单元小区编号。
  10. 根据权利要求9分布式Femto基站组网系统，其特征在于，所述Femto基站单元还用于激活时，发送激活状态消息至所述集中控制模块；所述集中控制模块还用于当接收所述激活状态消息时，遍历已接入的所述室内交换单元或所述室外交换单元配置的Femto基站单元小区编号，判断当前已接入的所述室内交换单元或所述室外交换单元配置的Femto基站单元小区是否包括当前发送激活状态消息的所述Femto基站单元，若是，则将当前发送激活状态消息的Femto基站单元的小区参数、时延校准参数和控制参数发送至所述室内交换单元或所述室外交换单元，若否，则将下一个已接入的所述室内交换单元或所述室外交换单元配置的Femto基站单元小区重新作为当前已接入的所述室内交换单元或所述室外交换单元配置的Femto基站单元小区，返回所述判断当前已接入的所述室内交换单元或所述室外交换单元配置的Femto基站单元小区是否包括当前发送激活状态消息的所述Femto基站单元的操作。
  11. 根据权利要求8分布式Femto基站组网系统，其特征在于，所述Femto基站单元内置有第一路由单元，所述第一路由单元用于提供上下行IP回传数据 的回传通道，并为级连的下一级Femto基站单元提供上下行IP回传数据的通道，且当存在多个所述Femto基站单元进行多制式混合组网或扩容时，由第一级的Femto基站单元统一接入回传网络，构建第一回传路由；
    所述集中控制模块内置有第二路由单元，所述第二路由单元接入所述回传网络，构成第二回传路由，所述集中控制模块实时将所述第二路由单元与所述回传网络的连通状态告之各所述Femto基站单元，当各所述Femto基站单元检测到所述第一回传路由不通，且所述第二回传路由连通时，将IP回传数据发送到集中控制模块，由集中控制模块转发至所述回传网络。
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