WO2011137621A1

WO2011137621A1 - Method and apparatus for managing distributed base station

Info

Publication number: WO2011137621A1
Application number: PCT/CN2010/077271
Authority: WO
Inventors: 罗亚军
Original assignee: 中兴通讯股份有限公司
Priority date: 2010-05-07
Filing date: 2010-09-25
Publication date: 2011-11-10
Also published as: CN102238594B; CN102238594A

Abstract

The present invention relates to wireless communication field and discloses a method and an apparatus for managing distributed base station which are used to solve the problem in the prior art that the operation and maintenance cost for managing distributed base station is exorbitant. The method includes the following steps: sending equipment identifier (ID) generation strategy to a Remote Radio Unit (RRU) of the distributed base station (101); obtaining an equipment ID generated by the RRU of the distributed base station based on the equipment ID generation strategy (102); determining the topology between the RRU of the distributed base station and locale based on the equipment ID of the RRU of the distributed base station and the equipment ID generation strategy(103); managing the RRU of the distributed base station based on the topology between the RRU of the distributed base station and locale (104). The technical solution provided by the present invention can be applied to the equipment management in mobile communication system.

Description

Method and apparatus for managing distributed base stations

Technical field

The present invention relates to the field of wireless communications, and in particular, to a method and apparatus for managing a distributed base station.

Background technique

The mobile communication technology has evolved to the LTE (Long Term Evolution) project stage. The number of eNBs (Evolved Node Bs) will be many. The traditional manual maintenance methods are used, and the workload of installation, configuration, and maintenance is extremely high. Large, high cost, and operators pay more and more attention to operation and maintenance costs, so operators have proposed the concept of SON (Self-Organized Network). The so-called self-organizing network is a mobile communication network that can provide automatic installation, configuration, and maintenance functions, reduce manual maintenance workload, and greatly reduce operator operating costs.

The current distributed base station is generally divided into two parts: a BBU (Base Band Unit) and a Remote Radio Unit (RRU). The interface between the two follows the CPRI (Common Public Radio Interface). Interfaces, which can form a chain, star, etc. network according to the actual networking scenario.

At present, the SON-related standard explicitly mentions the self-established requirement of the base station, that is, the base station is required to be powered on to the designated location and then complete the connection with the network management unit. However, for the above-mentioned system in which the BBU and the RRU are separated, if the requirements of the self-organizing network are to be met, in addition to the automatic building of the BBU, the automatic discovery of the RRU device and the automatic identification of the topology relationship, and the automatic BBU and RRU are required. Building links and other functions. In the process of implementing the present invention, the inventor has found that in the prior art, the BBU cannot automatically discover the RRU, and thus the topology relationship between the BBU and the RRU cannot be obtained. Only the background connection between the BBU and the RRU device can be manually added in the background. The self-establishment of the base station is completed, and the operation and maintenance cost is high.

Summary of the invention

The present invention provides a method and an apparatus for managing a distributed base station to solve the problem of excessive operation and maintenance cost of managing distributed base stations in the prior art. In order to solve the above technical problem, the present invention provides the following technical solutions:

A method of managing a distributed base station, comprising:

Transmitting a device identification value (ID) generation policy to a radio remote unit (RRU) in the distributed base station;

The RRU in the distributed base station generates its own device according to the device ID generation policy

After the ID, acquiring a device ID of the RRU in the distributed base station;

Determining, according to the device ID of the RRU and the device ID generation policy in the distributed base station, the RRU and the local topology relationship in the distributed base station;

And managing the RRUs in the distributed base station according to the RRU in the distributed base station and the local topology relationship.

Preferably, the device ID generation policy includes a pre-configured device ID and a preset device ID value change policy; the step of the RRU in the distributed base station generating the device ID of the device according to the device ID generation policy includes: receiving the device ID generation policy Afterwards, the RRU in the distributed base station uses the device ID in the device ID generation policy as its own device ID, and generates a new device ID according to the device ID value change policy in the device ID generation policy. The new device ID and device ID value change policy is sent to the next RRU that is cascaded with itself.

Preferably, the device ID generation policy is sent to the RRU in the distributed base station via the general public radio interface control word.

Preferably, the relationship between the RRU and the local topology in the distributed base station is determined by: obtaining a baseband unit that locally receives the device ID of the RRU in the distributed base station, and an optical port of the baseband unit, obtaining local and distributed a baseband unit connected to the RRU in the base station and an optical port of the baseband unit; comparing a value of a device ID of the RRU in the distributed base station with a device ID generation policy, to obtain a baseband unit connected to the RRU in the distributed base station, and the baseband The cascade position of the RRU on the optical port of the unit.

Preferably, the device ID of the RRU in the distributed base station is sent by the RRU in the distributed base station by using the communication connection establishment request; the method further includes: establishing the RRU in the local and distributed base station after receiving the communication connection establishment request The communication connection and the resource information and/or capability information of the RRU in the distributed base station are obtained by using the established communication connection. The present invention also provides an apparatus for managing a distributed base station, including:

a sending module, configured to send a device ID generation policy to the RRU in the distributed base station; a first acquiring module, connected to the sending module, and configured as a device ID of the RRU in the distributed base station;

a determining module, configured to be connected to the first acquiring module, and configured to determine an RRU and a local topology in the distributed base station according to a device ID of the RRU in the distributed base station and a device ID generation policy Relationship

And a management module, configured to be connected to the determining module, and configured to manage the RRU in the distributed base station according to an RRU in the distributed base station and a local topology relationship.

Preferably, the device ID generation policy sent by the sending module includes a pre-configured device ID and a preset device ID value change policy; the device ID of the RRU in the distributed base station acquired by the first obtaining module is generated by: After receiving the device ID generation policy, the device ID value change policy set by the distributed base first generates a new device ID by using the device ID in the device ID generation policy, and sends a new device ID and device ID value change policy. Give the next RRU that is cascaded with itself. The word is sent to the RRU in the distributed base station.

Preferably, the determining module includes: a first acquiring unit, configured to acquire a baseband unit that locally receives the device ID of the RRU in the distributed base station, and an optical port of the baseband unit, to obtain a local connection with the RRU in the distributed base station The baseband unit and the optical port of the baseband unit, thereby enabling the determining module to determine the RRU in the distributed base station and the local topology relationship; the second obtaining unit is configured to set the value of the device ID of the RRU in the distributed base station Comparing with the device ID generation policy, obtaining a baseband unit connected to the RRU in the distributed base station and a cascade location of the RRU on the optical port of the baseband unit, so that the determining module can determine the RRU and the local topology in the distributed base station relationship.

Preferably, the apparatus further includes an establishing module and a second acquiring module; the first obtaining module is configured to obtain by acquiring a communication connection establishment request including a device ID of the RRU in the distributed base station a device ID of the RRU in the distributed base station; the establishing module is connected to the first acquiring module, and is configured to establish a communication connection between the local and the RRU in the distributed base station; the second obtaining module is connected to the establishing module, and is configured to use the communication The connection acquires resource information and/or capability information of the RRU in the distributed base station.

The one or more embodiments provided by the present invention obtain the device ID generated by the RRU according to the device ID generation policy in the distributed base station, and combine the device ID generation policy to determine the topology relationship between the RRU and the local in the distributed base station, and implement automatic acquisition. The topology relationship and the obtained topology relationship are used to manage the RRUs in the distributed base station, which solves the problem of high cost of operation and maintenance of the manually configured topology relationship in the prior art, reduces operation and maintenance costs, and is simple to implement.

BRIEF abstract

1 is a schematic flowchart of a method for managing a distributed base station according to the present invention; FIG. 2 is a schematic structural diagram of a distributed base station according to an application example of the present invention;

3 is a schematic flowchart of an application example of a method for managing a distributed base station according to the present invention; FIG. 4 is a schematic flowchart of an apparatus for managing a distributed base station according to the present invention; FIG. 5 is a determining module 403 in the apparatus embodiment shown in FIG. Schematic diagram of the structure;

Figure 6 is a schematic view showing another structure of the apparatus in the embodiment of the apparatus shown in Figure 4.

Preferred embodiment of the invention

The present invention will be further described in detail below with reference to the drawings and specific embodiments.

FIG. 1 is a schematic flowchart of a method for managing a distributed base station according to the present invention. The method shown in Figure 1 includes:

Step 101: Send a device identity value (ID) generation policy to the RRU in the distributed base station; Step 102: Obtain a device ID generated by the RRU according to the device ID generation policy in the distributed base station;

Step 103: Generate a policy according to the device ID of the RRU in the distributed base station and the device ID. Slightly determining the topology relationship between the RRU and the local in the distributed base station;

Step 104: Manage RRUs in the distributed base station according to the topology relationship between the RRU and the local in the distributed base station.

The method provided by the embodiment of the present invention obtains the device ID generated by the RRU according to the device ID generation policy in the distributed base station, and combines the device ID generation policy to determine the topology relationship between the RRU and the local in the distributed base station, thereby realizing automatic acquisition of the topology relationship. Then, the RUP is used to manage the RRU in the distributed base station, which solves the problem of high cost of operation and maintenance of the manually configured topological relationship in the prior art, reduces the operation and maintenance cost, and is simple to implement.

The embodiments of the present invention are further described below:

2 is a schematic structural diagram of a distributed base station in an application example of the present invention. The distributed base station shown in FIG. 2 includes a BBU and a plurality of RRUs, wherein the BBU mainly includes a main control unit and a plurality of baseband processing units, wherein the baseband processing unit includes a plurality of optical ports, and is connected to the RRU through a CPRI optical port, where RRUs can be cascaded together.

FIG. 3 is a schematic flowchart of an application example of a method for managing a distributed base station according to the present invention. In the structure shown in FIG. 2, in combination with the method shown in FIG. 1, the method of this application example specifically includes:

Step 301: The BBU obtains a device ID generation policy.

Specifically, the device ID generation policy in this application example includes:

After the BBU is powered on, the first-level RRU device ID that is connected to the optical port of each baseband unit is initialized. The length of the device ID is 16 bits, and the lower 8 bits is used to indicate the cascading number of the RRU. After each initialization, the initial device ID of the BBU may be the same or different. The cascading number is 0, and the value change policy indicating the device ID in the device ID generation policy is incremented by 1, that is, the device ID is increased by 1. The cascading number is incremented by 1, and then transferred to the next RRU and incremented by 1, and transmitted through the agreed CPRI control word.

For example, the device ID of each level RRU can be set to 100000000; the device ID of the second level RRU is 100000001, indicating that the cascading number of the second level RRU is 1; the device ID of the third level RRU is 100000010 , indicating that the cascading number of the third-level RRU is 2; and so on.

For example, the device ID of the first-level RRU may be set to be 100000000 and 10000000000. The method for generating the device ID of the cascading RRU is similar to the previous example, and is not described here. Step 302: The BBU sends a device ID generation policy to the RRU.

Specifically, the BBU sends the device ID generation policy to the RRU in the distributed base station through the CPRI control word.

Step 303: The RRU uses the device ID generation policy to generate its own device ID.

Specifically, the RRU of the first level receives the device ID generation policy sent by the BBU, and the device is

The device ID in the ID generation policy is used as its own device ID, and the device ID is incremented by 1 and passed to the next-level RRU through the CPRI control word. The lower-level RRU sequentially reads the device ID and records the current cascading number. The device ID is incremented and then passed to the next level; and so on.

Step 304: The RRU notifies the BBU of its own device ID.

Specifically, in order to save the exchange process, the application instance sends a request for the communication link to the BBU to send its own device ID. Under the premise of implementing the notification device ID, the establishment of the communication connection is initiated at the same time, facilitating the transmission of subsequent information.

Step 305: The BBU generates a policy according to the device ID and the device ID of the RRU, and obtains a topology relationship between the BBU and the RRU.

Specifically, the BBU obtains a baseband unit that receives the device ID of the RRU in the distributed base station and an optical port of the baseband unit, and obtains a baseband unit that is connected to the RRU in the distributed base station and an optical port of the baseband unit. Comparing the value of the RRU device ID with the device ID generation policy, and obtaining a cascading location of the RRU connected to the RRU of the distributed base station and the optical port of the baseband unit, thereby obtaining the RRU and the BBU. Topological connection relationship.

In this application example, if the value change policy of the device ID in the device ID generation policy is incremented by 1, if the value in the lower 8 bits of the device ID is 1, it indicates that the RRU corresponding to the device ID is in the second level.

Step 306: The BBU establishes a communication connection with the RRU.

Specifically, the BBU can obtain the device ID of the RRU, and the communication link can be established. The method for establishing the communication connection in the prior art is applicable to this step, and details are not described herein.

Step 307: The RRU reports the resource information and capability information of the BBU to the BBU by using the communication connection. The resource information may be one or more of the following: device manufacturer identification information, version information, and hardware specifications; the capability information is the RF channel capability and/or frequency band capability supported by the RRU itself. Step 308: The BBU constructs the device entity and the topology connection relationship of the RRU according to the information reported by the RRU.

The topology connection relationship is the slot, optical port, and cascading of the interface board frame connected to the RRU and the BBU. After the RRU device entity and the topology connection relationship are obtained, the BBU reports the device entity and the topology connection relationship of the RRU to the background, so that the RRU device model and the topology connection relationship are synchronously constructed according to the foregoing information, thereby completing the RRU device. The process of discovery.

It should be noted that the device ID generation policy provided by the present invention is not limited thereto, as long as the device ID value generated in the cascade state is regular, and the regular BBU also knows that the RRU topology relationship can be known and then established. The communication is connected to manage the RRU. For example, the BBU or other device configures multiple device IDs for the optical ports of each baseband unit of the BBU, which are numbered from 1 to 50, and the device ID generation policy selects the nth device ID as the nth RRU on the optical port. Device ID, where n=l, 2, ... 50. In practical applications, the value of n should be greater than the largest cascading number in the distributed base station.

The method provided by the application example of the present invention can automatically discover the RRU device connected to the BBU according to the network topology relationship, and automatically establish the device resource and the topology connection relationship to ensure that the requirements of the SON self-organizing network are met.

4 is a schematic structural diagram of an apparatus for managing a distributed base station according to the present invention. Referring to the methods shown in FIG. 1 and FIG. 3, the apparatus shown in FIG. 4 includes:

a sending module 401, configured to send a device ID generation policy to an RRU in the distributed base station;

a first obtaining module 402, which is connected to the sending module 401, and configured to acquire the sub-determination module 403, which is connected to the first obtaining module 402, and configured to be based on the RRU device in the distributed base station. ID and the device ID generation policy, determining a topological relationship between the RRU and the local in the distributed base station;

The management module 404 is connected to the determining module 403 and configured to manage the RRUs in the distributed base station according to the RRU and the local topology relationship in the distributed base station.

The device ID generation policy sent by the sending module 401 includes a pre-configured device. ID and pre-set device ID value change strategy;

After receiving the device ID generation policy, the RRU in the distributed base station uses the device ID in the device ID generation policy as its own device ID, and changes the standby ID and the device ID value according to the preset device ID value. The change policy is sent to the next RRU that is cascaded with itself. The electrical interface control word is sent to the RRU in the distributed base station.

FIG. 5 is a schematic structural diagram of the determining module 403 in the apparatus embodiment shown in FIG. The determining module 403 shown in FIG. 5 includes:

a first acquiring unit 501, configured to acquire a baseband unit that locally receives the device ID of the RRU in the distributed base station, and an optical port of the baseband unit, to obtain a baseband unit and the baseband that are locally connected to the RRU in the distributed base station The optical port of the unit;

a second obtaining unit 502, configured to compare the value of the RRU device ID with the device ID generation policy, to obtain a baseband unit connected to the RRU in the distributed base station and a level of the RRU on the optical port of the baseband unit Joint location.

Figure 6 is a schematic view showing another structure of the apparatus in the embodiment of the apparatus shown in Figure 4. The device also includes an establishing module and a second acquiring module:

The first obtaining module 402 is configured to acquire a device ID of the RRU in the distributed base station by acquiring a communication connection establishment request including a device ID of the RRU in the distributed base station;

The establishing module 601 is connected to the first obtaining module 402, and is configured to establish a local communication connection with the RRU in the distributed base station;

The second obtaining module 602 is connected to the establishing module 601, and is configured to acquire resource information and/or capability information of the RRU in the distributed base station by using the communication connection.

The device provided by the embodiment of the present invention obtains the device ID generated by the RRU according to the device ID generation policy in the distributed base station, and combines the device ID generation policy to determine the topology relationship between the RRU and the local in the distributed base station, thereby realizing automatic acquisition of the topology relationship. Then, the RUP is used to manage the RRU in the distributed base station, which solves the problem of high cost of operation and maintenance of the manually configured topological relationship in the prior art, reduces the operation and maintenance cost, and is simple to implement. It will be understood by those skilled in the art that all or part of the steps of the above embodiments may be implemented using a computer program flow, which may be stored in a computer readable storage medium, such as on a corresponding hardware platform (eg, The system, device, device, device, etc. are executed, and when executed, include one or a combination of the steps of the method embodiments.

Optionally, all or part of the steps of the foregoing embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve. Thus, the invention is not limited to any particular combination of hardware and software.

The various devices or functional modules or functional units in the above-described embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.

When the devices or functional modules or functional units in the above embodiments are implemented in the form of software functional modules and sold or used as separate products, they may be stored in a computer readable storage medium. The above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Industrial applicability

Compared with the prior art, the present invention can solve the problem of high manual cost of manual configuration topology relationship operation in the prior art, reduce operation and maintenance cost, and is simple to implement.

Claims

Claim

A method for managing a distributed base station, comprising:

Sending a device identity value ID generation policy to the radio remote unit RRU in the distributed base station; after the RRU in the distributed base station generates its own device ID according to the device ID generation policy, acquiring the distributed base station Device ID of the RRU in the middle;

2. The method according to claim 1, wherein

The device ID generation policy includes a pre-configured device ID and a preset device ID value change policy;

The step of the RRU in the distributed base station generating the device ID of the device according to the device ID generation policy includes: after receiving the device ID generation policy, the RRU in the distributed base station generates the device ID generation policy The device ID in the device ID is used as its own device ID, and the new device ID and the device ID value change policy are sent to the next RRU cascading with itself according to the device ID.

3. The method according to claim 1 or 2, wherein

In the step of transmitting a device identity value ID generation policy to the RRU in the distributed base station, the device ID generation policy is sent to the RRU in the distributed base station through a general public radio interface CPRI control word.

4. The method according to claim 1, wherein

The steps of determining the relationship between the RRU and the local topology in the distributed base station include:

Acquiring a baseband unit that receives the device ID of the RRU in the distributed base station and an optical port of the baseband unit, to obtain a baseband unit that is locally connected to the RRU in the distributed base station, and an optical port of the baseband unit; Comparing the value of the device ID of the RRU in the distributed base station with the device ID generation policy, to obtain a baseband unit connected to the RRU in the distributed base station and a cascade location of the RRU on the optical port of the baseband unit .

5. The method according to claim 1, wherein

In the step of acquiring the device ID of the RRU in the distributed base station, the device ID of the RRU in the distributed base station is sent by the RRU in the distributed base station by using a communication connection establishment request;

The method further includes: after receiving the communication connection establishment request, establishing a local communication connection with the RRU in the distributed base station, and acquiring the RRU in the distributed base station by using the established communication connection Resource information and/or capability information.

6. A device for managing a distributed base station, comprising:

7. The apparatus according to claim 6, wherein

The device ID generation policy sent by the sending module includes a pre-configured device ID and a preset device ID value change policy;

The device ID of the RRU in the distributed base station that is acquired by the first acquiring module is generated by: after receiving the device ID generation policy, the RRU in the distributed base station generates the device ID The device ID in the device ID is used as its own device ID, and the new device ID and the device ID value change policy are sent to the next one that is cascaded with itself according to the device ID. RRU„

8. The apparatus according to claim 6 or 7, wherein

The transmitting module is configured to transmit the device ID generation policy to the RRU in the distributed base station via a universal public radio interface CPRI control word.

9. The device according to claim 6, wherein the determining module comprises:

a first acquiring unit, configured to acquire a baseband unit that locally receives the device ID of the RRU in the distributed base station, and an optical port of the baseband unit, to obtain a baseband unit locally connected to the RRU in the distributed base station, and the baseband unit An optical port of the baseband unit, thereby enabling the determining module to determine an RRU in the distributed base station and a local topology relationship;

a second acquiring unit, configured to compare a value of a device ID of the RRU in the distributed base station with the device ID generation policy, to obtain a baseband unit connected to the RRU in the distributed base station, and a baseband unit A cascading location of the RRU on the optical port, thereby enabling the determining module to determine an RRU in the distributed base station and a local topology relationship.

10. The apparatus according to claim 6, further comprising an establishing module and a second acquiring module, wherein

The first obtaining module is configured to acquire a device ID of the RRU in the distributed base station by acquiring a communication connection establishment request including a device ID of the RRU in the distributed base station;

The establishing module is connected to the first acquiring module, and is configured to establish a local communication connection with an RRU in the distributed base station;

The second obtaining module is connected to the establishing module, and is configured to obtain resource information and/or capability information of the RRU in the distributed base station by using a communication connection established by the establishing module.