CN106385688A - Baseband resource distribution method and system, and controller - Google Patents

Abstract

The embodiment of the present invention provides a baseband resource distribution method and system, and a controller, and relates to the communication technology field. The problem is solved that the whole utilization rate of the baseband source in the source pool is low in the prior art. The method comprises: the controller obtains the source overload early warning message reported by a first BBU through a switch; the controller requires source occupancy rate reported by other BBUs except the first BBU in the source pool through the switch according to the source overload early warning message; and the controller determines a target BBU according to the source occupancy rate reported by other BBUs and switches the RRU on the first BBU to the target BBU through the switch. The controller is connected with the switch, the first group of the interfaces of the switch is connected with a plurality of baseband processing units (BBU), and the second group of the interfaces of the switch is connected with a plurality of remote radio units. The baseband resource distribution method and system, and the controller are applied to the distribution of the baseband source.

Description

Method and system for allocating baseband resources, and controller

technical field

The present invention relates to the field of communication technology, in particular to a baseband resource allocation method, system and controller.

Background technique

With the widespread popularity of smart terminals and the rapid development of the mobile Internet, mobile data services have grown exponentially in recent years, which means that operators' mobile networks need to bear greater data pressure. In order to cope with this new trend, a network architecture of a baseband resource pool that meets new data service development requirements and reduces costs and energy consumption emerges as the times require.

As shown in FIG. 1 , it is a network architecture diagram of a baseband resource pool provided in the prior art. Specifically, the baseband processing unit (English: Base Band Unit, abbreviated: BBU) in the resource pool is usually connected to a fixed number of radio remote units (English: Radio Remote Unit, abbreviated: RRU), wherein each RRU can Process the sending and receiving signals of the cell where it is located, and the processing capability of each BBU is used by users in the cell it serves. In the network architecture of the baseband resource pool, a large number of BBUs are centrally placed in the central computer room, and the RRUs are placed at the remote location close to the antenna. The BBUs and RRUs are connected through optical fibers, which can be in the form of one-to-one or one-to-many, so that the above-mentioned The network architecture can greatly save the BBU computer room site and supporting resources, and the BBU can be managed and maintained in a centralized manner, which can greatly save space, energy consumption and maintenance costs.

However, the inventors found that using the above-mentioned network structure cannot cope with the tidal effect in the network, so that the overall utilization rate of resources in the baseband resource pool is low. Specifically, since each BBU in the existing network architecture is connected to a fixed number of RRUs, the BBU can only be used by users in its own area, so that during working hours, the BBUs in residential areas are idle, and the BBUs in business areas are idle. The BBUs in the resource pool are overloaded; during off-duty hours, the BBUs in the residential area are overloaded, and the BBUs in the business area are idle, so that the BBUs in the resource pool cannot be fully utilized, resulting in a low overall utilization rate of baseband resources in the resource pool.

Contents of the invention

Embodiments of the present invention provide a baseband resource allocation method, system, and controller to solve the problem of low overall utilization of baseband resources in a resource pool in the prior art.

In order to achieve the above object, embodiments of the present invention adopt the following technical solutions:

In the first aspect, a method for allocating baseband resources is provided, which is applied to a controller, and the controller is connected to a switch, wherein the first group of interfaces of the switch is connected to a plurality of baseband processing units BBU, and the second group of interfaces of the switch The interface is connected to multiple radio remote units RRU, and the method includes:

The controller obtains the resource overload warning message reported by the first BBU through the switch;

The controller requests other BBUs in the resource pool except the first BBU to report resource occupancy rates through the switch according to the resource overload warning message;

The controller determines the target BBU according to the resource occupancy rates reported by the other BBUs, and switches the RRU on the first BBU to the target BBU through the switch.

Further, the obtaining by the controller of the resource overload warning message reported by the first BBU through the switch specifically includes:

When the resource occupancy rate of the first BBU meets a first preset condition, the first BBU reports a resource overload warning message to the switch;

The controller acquires the resource overload warning message reported by the first BBU through the switch;

Wherein, the first preset condition is that the resource occupancy rate of the BBUs in the resource pool is greater than a first preset threshold, and the first BBU is any one of the BBUs in the resource pool.

Optionally, before the controller determines the target BBU according to the resource occupancy rates reported by the other BBUs, and before switching the RRU on the first BBU to the target BBU through the switch, the method further includes:

The controller receives the resource occupancy rates reported by the other BBUs through the switch.

Further, the controller determines the target BBU according to the resource occupancy rates reported by the other BBUs, specifically including:

When the controller determines that the resource occupancy rate of the second BBU satisfies a second preset condition, then determine that the second BBU is a target BBU;

Wherein, the second preset condition is that the occupancy rate of other BBUs in the resource pool is less than a second preset threshold, and the second BBU is any one or more of the other BBUs in the resource pool.

Further, when there are multiple second BBUs, the controller selects the target BBU with the smallest resource occupancy rate among the second BBUs.

In a second aspect, a controller is provided, the controller is connected to a switch, wherein the first group of interfaces of the switch is connected to a plurality of baseband processing units BBU, and the second group of interfaces of the switch is connected to a plurality of radio remote Unit RRU, the controller includes:

An acquisition module, configured to acquire a resource overload warning message reported by the first BBU through the switch;

A request module, configured to request other BBUs in the resource pool except the first BBU to report resource occupancy rates through the switch according to the resource overload warning message;

A processing module, configured to determine a target BBU according to resource occupancy rates reported by the other BBUs, and switch the RRU on the first BBU to the target BBU through the switch.

Further, the acquisition module is specifically used for:

When the resource occupancy rate of the first BBU meets a first preset condition, the first BBU reports a resource overload warning message to the switch;

Obtaining the resource overload warning message reported by the first BBU through the switch;

Wherein, the first preset condition is that the resource occupancy rate of the BBUs in the resource pool is greater than a first preset threshold, and the first BBU is any one of the BBUs in the resource pool.

Optionally, the controller also includes:

A receiving module, configured to receive, through the switch, the resource occupancy rates reported by the other BBUs.

Further, the processing module determines the target BBU according to the resource occupancy rates reported by the other BBUs, specifically for:

When determining that the resource occupancy rate of the second BBU satisfies a second preset condition, then determining that the second BBU is the target BBU;

Wherein, the second preset condition is that the occupancy rate of other BBUs in the resource pool is less than a second preset threshold, and the second BBU is any one or more of the other BBUs in the resource pool.

Optionally, the controller also includes:

A selecting module, configured to select the target BBU with the smallest resource occupancy rate among the second BBUs when there are multiple second BBUs.

In a third aspect, a baseband resource allocation system is provided, including the controller and the switch described in the second aspect, the controller is connected to the switch, and the first interface of the switch is connected to a plurality of baseband processing units BBU, so The second group of interfaces of the switch is connected to multiple remote radio units RRU.

Compared with the prior art, in this solution, the BBU is connected to the RRU through the switch, and the controller controls the switch to dynamically connect the BBU and the RRU in the resource pool. During working hours, due to the large number of users in the business district, the resources of the BBUs in the business district will be overloaded. When the resources of the first BBU in the business district are overloaded, the controller will For example, the resource occupancy rate of the BBU in the living area determines the target BBU, and the RRU on the first BBU in the business area is switched to the target BBU through a switch, so that the BBUs in the resource pool can share resources and improve the resource pool. overall resource utilization. In addition, the controller switches the RRU on the first BBU to the target BBU through the switch, so that each BBU in the resource pool can normally serve the cell, so that the cell operates normally.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 is a schematic diagram of a network structure of a baseband resource pool provided by the prior art;

FIG. 2 is a method flowchart of a baseband resource allocation method provided by an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a controller provided by an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of another controller provided by an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a baseband resource allocation system provided by an embodiment of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The radio remote unit (English: Radio Remote Unit, abbreviated: RRU) and the baseband processing unit (English: Base Band Unit, abbreviated: BBU) involved in the embodiment of the present invention form a distributed base transceiver station (English: BaseTransceiver Station , referred to as: BTS), and BTS and base station controller (English: Base Station Controller, referred to as: BSC) these two logical nodes form a base station subsystem (English: Base Station System, referred to as: BSS), where: the BSS is the global A wireless access network device in a mobile communication system (English: Global System for Mobile Communication, GSM for short). Therefore, it can be known that the BBU and the RRU in the embodiment of the present invention are two processing units in the GSM, and are used to process network services. Wherein, the above-mentioned BBU includes an interface unit, a control unit and a baseband unit, and the above-mentioned RRU includes an interface unit, a control unit and a radio frequency unit.

The descriptions such as "first" and "second" mentioned in this embodiment should be understood as merely used for distinction, unless they really express the order according to the context.

An embodiment of the present invention provides a method for allocating baseband resources, which is applied to a controller, and the controller is connected to a switch, wherein the first group of interfaces of the switch is connected to a plurality of baseband processing units BBU, and the second group of interfaces of the switch is connected to a plurality of radio frequency pull The remote unit RRU, as shown in Figure 2, the method includes:

101. The controller obtains the resource overload warning message reported by the first BBU through the switch.

Exemplarily, the foregoing resource overload warning message includes, but is not limited to: the number parameter of the first BBU, the resource occupancy rate of the first BBU, and the overload warning time of the first BBU.

Exemplarily, step 101 specifically includes the following content:

101a. When the resource occupancy rate of the first BBU meets a first preset condition, the first BBU reports a resource overload warning message to the switch.

101b. The controller acquires the resource overload warning message reported by the first BBU through the switch.

Wherein, the above-mentioned first preset condition is that the resource occupancy rate of the BBUs in the resource pool is greater than a first preset threshold, and the first BBU is any one of the BBUs in the resource pool.

It should be noted that the above-mentioned first preset threshold is configured by the controller, and the specific value of the first preset threshold is not limited here, for example, it can be set to 80%, or 90% or 95%, etc., here By way of example only. The first BBU mentioned in step 101b is any one of the BBUs in the resource pool, which is just an example and is not limited here.

Exemplarily, based on the baseband resource architecture diagram shown in Figure 2, since the controller is not directly connected to the BBU, the specific process for the controller to obtain the resource overload warning message of the first BBU is: when the resource occupancy rate of the first BBU When the value is greater than the first preset threshold, the first BBU reports a resource overload warning message to the switch, and the controller acquires the resource overload message of the first BBU from the switch.

102. The controller requests other BBUs in the resource pool except the first BBU to report resource occupancy rates through the switch according to the resource overload warning message.

Exemplarily, step 102 specifically includes the following content: first, the controller sends a request to the switch according to the resource overload warning message, and then the switch sends the request to other BBUs except the first BBU, and then the other BBUs except the first BBU Report resource usage to the switch. Wherein: the above request includes: the serial number parameter of the first BBU, the resource occupancy rate of the first BBU, and the resource overload time of the first BBU.

103. The controller determines the target BBU according to the resource occupancy rates reported by other BBUs, and switches the RRU on the first BBU to the target BBU through the switch.

Exemplarily, before step 103, the method further includes:

103a. The controller receives resource occupancy rates reported by other BBUs through the switch.

Exemplarily, in step 103, the controller determines the target BBU according to the resource occupancy rates reported by other BBUs, specifically including the following:

A1. When the controller determines that the resource occupancy rate of the second BBU satisfies the second preset condition, it determines that the second BBU is the target BBU.

Wherein, the above-mentioned second preset condition is that the occupancy rate of other BBUs in the resource pool is less than a second preset threshold, and the second BBU is any one or more of the other BBUs in the resource pool.

It should be noted that the above-mentioned second preset threshold is configured by the controller, and the specific value of the second preset threshold is not limited here, for example, it can be set to 10%, or 20% or 30%, etc., here By way of example only.

Exemplarily, when the number of the second BBU that satisfies the above-mentioned second preset condition is one, the target BBU determined by the controller is the second BBU, and the controller acquires the position of the target BBU, and formulates a new baseband resource The distribution strategy is to formulate routing information for handover from one RRU on the first BBU to the target BBU. The switching device automatically switches an RRU connected to the first BBU to the target BBU according to the new routing information. In this way, the RRU, the switching device and the target BBU establish a new connection to perform normal communication.

Exemplarily, when there are multiple second BBUs satisfying the above-mentioned second preset condition, the controller selects the target BBU with the smallest resource occupancy rate among the second BBUs. The controller obtains the target BBU number and location. The controller formulates a new baseband resource allocation strategy, that is, formulates routing information for switching an RRU on the first BBU to a target BBU. The switching device automatically switches an RRU connected to the first BBU to the target BBU according to the new routing information. The RRU, the switching device and the target BBU establish a new connection for normal communication.

Exemplarily, if there is no second BBU that meets the above-mentioned second preset condition, that is, the controller cannot find the target BBU, the controller sends an overload warning message to the switch through the known position information of the first BBU, The switch transparently transmits the message to the first BBU. The first BBU does not perform any operation, and waits for the next warning overload message.

It should be noted that the number of the first BBU in this solution may be any one in the resource pool, or may be multiple in the resource pool. Since there may be multiple first BBUs satisfying the first preset condition at the same time, the number of first BBUs in this solution may also be multiple BBUs in the resource pool. For the process of how to obtain the target BBU when the number of the first BBU is one, this solution has been described in the above-mentioned embodiment by using an example, and details are not repeated here. However, when there are multiple first BBUs, the idea of this solution is still adopted. Just find one more target BBU when looking for the target BBU. For example, when the number of the first BBU is two (denoted as BBU1 and BBU2), the controller selects two target BBUs (denoted as the first target BBU and the second target BBU), and the controller passes the switch according to preset rules Switch the RRU on BBU1 to the first target BBU (or switch the RRU on BBU1 to the second target BBU), switch the RRU on BBU2 to the second target BBU (or switch the RRU on BBU2 to the first target BBU ). The preset rule mentioned here is that the preset BBU1 corresponds to the first target BBU, and BBU2 corresponds to the second target BBU (or BBU1 corresponds to the second target BBU, and BBU2 corresponds to the first target BBU).

Compared with the prior art, in this solution, the BBU is connected to the RRU through the switch, and the controller controls the switch to dynamically connect the BBU and the RRU in the resource pool. During working hours, due to the large number of users in the business district, the resources of the BBUs in the business district will be overloaded. When the resources of the first BBU in the business district are overloaded, the controller will For example, the resource occupancy rate of the BBU in the living area determines the target BBU, and the RRU on the first BBU in the business area is switched to the target BBU through a switch, so that the BBUs in the resource pool can share resources and improve the resource pool. overall resource utilization. In addition, the controller switches the RRU on the first BBU to the target BBU through the switch, so that each BBU in the resource pool can normally serve the cell, so that the cell operates normally.

A controller provided in an embodiment of the present invention will be introduced below based on the relevant description in the embodiment of the baseband resource allocation method corresponding to FIG. 1 . For descriptions of technical terms, concepts, etc. related to the above-mentioned embodiments in the following embodiments, reference may be made to the above-mentioned embodiments, and details are not repeated here.

An embodiment of the present invention provides a controller, which is connected to a switch, wherein the first group of interfaces of the switch is connected to multiple baseband processing units BBU, and the second group of interfaces of the switch is connected to multiple remote radio units RRU, such as As shown in FIG. 3, the above-mentioned controller 3 includes: an acquisition module 31, a request module 32 and a processing module 33, wherein:

The obtaining module 31 is configured to obtain the resource overload warning message reported by the first BBU through the switch.

The request module 32 is configured to request other BBUs in the resource pool except the first BBU to report resource occupancy rates through the switch according to the resource overload warning message.

The processing module 33 is configured to determine the target BBU according to the resource occupancy rates reported by other BBUs, and switch the RRU on the first BBU to the target BBU through the switch.

Exemplarily, the above acquisition module 31 is specifically used for:

When the resource occupancy rate of the first BBU meets the first preset condition, the first BBU reports a resource overload warning message to the switch.

Obtain the resource overload warning message reported by the first BBU through the switch.

Exemplarily, the above-mentioned first preset condition is that the resource occupancy rate of the BBUs in the resource pool is greater than a first preset threshold, and the first BBU is any one of the BBUs in the resource pool.

Optionally, as shown in FIG. 4, the above-mentioned controller 3 further includes: a receiving module 34, wherein:

The receiving module 34 is configured to receive resource occupancy rates reported by other BBUs through the switch.

Exemplarily, the above-mentioned processing module 33 determines the target BBU according to the resource occupancy rate reported by other BBUs, specifically for:

When it is determined that the resource occupancy rate of the second BBU satisfies the second preset condition, it is determined that the second BBU is the target BBU.

Exemplarily, the aforementioned second preset condition is that the occupancy rate of other BBUs in the resource pool is less than a second preset threshold, and the second BBU is any one or more of the other BBUs in the resource pool.

Further, as shown in FIG. 4, the above-mentioned controller 3 also includes: a selection module 35, wherein:

The selection module 35 is configured to select the one with the smallest resource occupancy rate among the second BBUs as the target BBU when there are multiple second BBUs.

Compared with the prior art, in this solution, the BBU is connected to the RRU through the switch, and the controller controls the switch to dynamically connect the BBU and the RRU in the resource pool. During working hours, due to the large number of users in the business district, the resources of the BBUs in the business district will be overloaded. When the resources of the first BBU in the business district are overloaded, the controller will For example, the resource occupancy rate of the BBU in the living area determines the target BBU, and the RRU on the first BBU in the business area is switched to the target BBU through a switch, so that the BBUs in the resource pool can share resources and improve the resource pool. overall resource utilization. In addition, the controller switches the RRU on the first BBU to the target BBU through the switch, so that each BBU in the resource pool can normally serve the cell, so that the cell operates normally.

The baseband resource allocation system provided by the embodiment of the present invention will be introduced below based on the relevant description in the embodiment of the controller corresponding to FIG. 2 . For descriptions of technical terms, concepts, etc. related to the above-mentioned embodiments in the following embodiments, reference may be made to the above-mentioned embodiments, and details are not repeated here.

An embodiment of the present invention provides a baseband resource allocation system. As shown in FIG. 5 , the system includes the above-mentioned controller and a switch, the controller is connected to the switch, the first interface of the switch is connected to multiple BBUs, and the second group of switches The interface connects multiple RRUs.

Compared with the schematic diagram of a baseband resource pool network structure shown in FIG. 1 provided in the prior art, the baseband resource pool allocation system provided in the embodiment of the present invention includes multiple BBUs, multiple RRUs, switches, and controllers, wherein : The controller is connected to a switch, the first interface of the switch is connected to multiple BBUs, and the second interface of the switch is connected to multiple RRUs. The controller dynamically allocates BBU resources to the RRU by controlling the switch, thereby realizing the sharing of baseband resources in the resource pool and improving the utilization rate of the baseband resources in the resource pool.

In the several embodiments provided in this application, it should be understood that the disclosed baseband resource allocation method, system and controller can be implemented in other ways. For example, the embodiments of the controller described above are only illustrative. For example, the division of the modules is only a logical function division. In actual implementation, there may be other division methods. For example, multiple modules or components can be Incorporation may either be integrated into another system, or some features may be omitted, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of base stations or modules may be in electrical, mechanical or other forms.

The modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional module in each embodiment of the present invention can be integrated into one processing unit, or each module can be physically included separately, or two or more modules can be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware, or in the form of hardware plus software functional units.

The above-mentioned integrated units implemented in the form of software functional units may be stored in a computer-readable storage medium. The above-mentioned software functional units are stored in a storage medium, and include several instructions to enable a computer device (which may be a personal computer, server, or network device, etc.) to execute some steps of the methods described in various embodiments of the present invention. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM for short), random access memory (Random Access Memory, RAM for short), magnetic disk or optical disk, etc., which can store program codes. medium.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (11)

1. it is characterised in that being applied to controller, described controller is connected a kind of base-band resource distribution method with switch, its In, the first group interface of described switch connects multiple baseband processing unit BBU, and the second group interface connection of described switch is many Individual radio frequency remote unit RRU, methods described includes：

Described controller obtains, by described switch, the resource overload early warning information that a BBU reports；

Described controller according to described resource overload early warning information by switch ask resource pool in addition to a described BBU Other BBU report resources occupation rate；

Described controller determines target BBU according to the resources occupation rate that other BBU described report, and by described switch by institute The RRU stating on a BBU switches in target BBU.

2. method according to claim 1 obtains a BBU it is characterised in that described controller passes through described switch The resource overload early warning information reporting specifically includes：

When a BBU resources occupation rate meet first pre-conditioned when, a described BBU reports resource mistake to described switch Carry early warning information；

Described controller obtains, by described switch, the resource overload early warning information that a described BBU reports；

Wherein, the described first pre-conditioned resources occupation rate for the BBU in resource pool be more than the first predetermined threshold value, described first BBU is any one in the BBU in described resource pool.

3. method according to claim 1 is it is characterised in that the resource that reported according to other BBU described of described controller Occupancy determines target BBU, and before being switched to the RRU on a described BBU in target BBU by described switch, also Including：

Described controller receives, by described switch, the resources occupation rate that other BBU described report.

4. method according to claim 1 is it is characterised in that the resource that reported according to other BBU described of described controller Occupancy determines target BBU, specifically includes：

Controller determine the 2nd BBU resources occupation rate meet second pre-conditioned when it is determined that described 2nd BBU be target BBU；

Wherein, the described second pre-conditioned occupancy for other BBU in resource pool be less than the second predetermined threshold value, described second BBU is any one or more in other BBU in resource pool.

5. method according to claim 4 it is characterised in that

When described 2nd BBU is multiple, described controller select resources occupation rate in the 2nd BBU minimum for described target BBU.

6. it is characterised in that described controller is connected with switch, wherein, first group of described switch connects a kind of controller Mouth connects multiple baseband processing unit BBU, and the second group interface of described switch connects multiple radio frequency remote unit RRU, described Controller includes：

Acquisition module, for obtaining, by described switch, the resource overload early warning information that a BBU reports；

Request module, for asking to remove a described BBU according to described resource overload early warning information in resource pool by switch Other BBU in addition report resources occupation rate；

Processing module, for determining target BBU according to the resources occupation rate that other BBU described report, and passes through described switch RRU on a described BBU is switched in target BBU.

7. controller according to claim 6 it is characterised in that described acquisition module specifically for：

When a BBU resources occupation rate meet first pre-conditioned when, a described BBU reports resource mistake to described switch Carry early warning information；

The resource overload early warning information that a described BBU reports is obtained by described switch；

Wherein, the described first pre-conditioned resources occupation rate for the BBU in resource pool be more than the first predetermined threshold value, described first BBU is any one in the BBU in described resource pool.

8. controller according to claim 6 is it is characterised in that described controller also includes：

Receiver module, for receiving, by described switch, the resources occupation rate that other BBU described report.

9. controller according to claim 6 is it is characterised in that described processing module reports according to other BBU described Resources occupation rate determine target BBU, specifically for：

Determine the 2nd BBU resources occupation rate meet second pre-conditioned when it is determined that described 2nd BBU be target BBU；

Wherein, the described second pre-conditioned occupancy for other BBU in resource pool be less than the second predetermined threshold value, described second BBU is any one or more in other BBU in resource pool.

10. controller according to claim 9 is it is characterised in that described controller also includes：

Selecting module, for when described 2nd BBU is multiple, select resources occupation rate in the 2nd BBU minimum for described mesh Mark BBU.

A kind of 11. base-band resource distribution systems it is characterised in that include any one of claim 6-10 described in controller and Switch, described controller is connected with described switch, and the first interface of described switch connects multiple baseband processing units BBU, the second group interface of described switch connects multiple radio frequency remote unit RRU.