WO2014101217A1

WO2014101217A1 - Networking system and network device based on common bcch frequency point

Info

Publication number: WO2014101217A1
Application number: PCT/CN2012/088108
Authority: WO
Inventors: 刘敬全; 王志伟; 杨静; 冯振杰
Original assignee: 华为技术有限公司
Priority date: 2012-12-31
Filing date: 2012-12-31
Publication date: 2014-07-03
Also published as: CN103250443A; CN103250443B

Abstract

Embodiments of the present invention provide a networking system and a network device based on a common BCCH frequency point, which can implement effective networking in the case of inadequate BCCH frequency points. The system comprises: at least three base station groups, wherein one base station group consists of at least two base stations, all base stations in each base station group use the same BCCH frequency point, and neighboring base station groups use different BCCH frequency points; and at least one base station controller, for communicating with the base stations in the base station groups. The embodiments of the present invention support a wider range of networking, thereby saving the BCCH bandwidth, reducing network interference, and improving network capacity, so that networking can be implemented in a closer frequency mode, and operating bandwidth is further saved.

Description

Networking system and network equipment sharing BCCH frequency

Technical field

The embodiments of the present invention relate to the field of wireless communications, and more specifically, to a networking system and a network device based on a frequency of a broadcast control channel (Broadcast Control Channel, hereinafter referred to as "BCCH"). Background technique

With the rapid development of the Universal Mobile Telecommunications System (UMTS) / Long Term Evolution (LTE), more and more operators are considering deploying UMTS/LTE networks. However, the operator's own spectrum is limited, and even some operators have not yet obtained the corresponding frequency bands. Therefore, operators will consider the presence of some of the Global System for Mobile communications ("GSM") frequency bands for deploying UMTS or LTE, but this will make GSM's own frequency less and less, making GSM Faced with the problem of not being able to effectively network at a small number of frequencies.

The existing scheme for saving the BCCH frequency point is to make the radio remote unit under the same base station

(Radio Remote Unit, RRU) / Radio Frequency Unit (RFU) transmits the same BCCH frequency information, and evolves the normal three sectors with three sectors and one sector using one BCCH frequency point. To the cell, the omni-directional cell only needs to use one BCCH frequency point, thereby achieving BCCH frequency point saving. However, the scheme has limited savings on the BCCH frequency, and in the absence of BCCH resources, effective networking is still not possible. Summary of the invention

The embodiment of the invention provides a system and a network device for sharing a BCCH frequency point network, which can save the BCCH frequency.

In a first aspect, a system for sharing a BCCH frequency point network is provided, the system comprising: at least three base station groups, one of the base station groups being composed of at least two base stations, each of the base stations in the base station group using the same The BCCH frequency, the adjacent base station group uses different BCCH frequency points; at least one base station controller, the base station controller communicates with the base station in the base station group.

In a first possible implementation, synchronization is maintained between all base stations in each of the base station groups. In a second possible implementation manner, in combination with the first aspect or the first possible implementation manner of the first aspect, each base station in the base station group includes a baseband processing unit BBU, and further includes Containing at least one radio remote unit RRU or at least one radio unit RFU.

In a third possible implementation manner, in combination with the first aspect or the first or second possible implementation manner of the first aspect, when the downlink data is sent, the method includes: configuring the one of the base stations in each of the base station groups The baseband processing unit receives the information sent by the base station controller, and the specified baseband processing unit sends the information sent by the controller to each baseband processing unit of another base station in the same base station group, and each of the other base stations in the same base station group The baseband processing unit then transmits the information to the RRU or RFU to which the respective connection is connected; or the baseband processing unit in each of the base stations receives system information transmitted by the base station controller, and the baseband processing unit transmits the information to each The RRU or RFU to which the baseband processing unit is connected.

In a fourth possible implementation, in combination with the first aspect or the first or the second possible implementation manner of the first aspect, when the uplink data is sent, the method includes: The baseband processing unit receives information transmitted by the RRU or RFU connected to the baseband processing unit, and each of the baseband processing units transmits the received information to a designated one of the base station groups of the base station where the baseband processing unit is located. a baseband processing unit in the base station, wherein the baseband processing unit of the designated base station transmits the received information to the base station controller; or the baseband processing unit in each of the base stations in the base station group receives Information transmitted by the RRU or RFU connected to the baseband processing unit, each of the baseband processing units transmitting the received information to the base station controller.

In a second aspect, a base station is provided, the base station using a BCCH frequency point; the base station and at least one base station adjacent to the base station use the same BCCH frequency point as the base station.

In a first possible implementation, the base station and the base station using the same BCCH frequency and the neighboring base station are synchronized with the base station.

In a second possible implementation, in combination with the second aspect or the first possible implementation manner of the second aspect, the base station includes a baseband processing unit BBU, and further includes at least one radio remote unit RRU or at least one radio unit RFU.

In a third possible implementation, in combination with the second aspect or the first or second possible implementation of the second aspect, the base station communicates with the base station controller.

In a third aspect, a base station group is provided, the base station group being constituted by at least two base stations in the first to third possible implementations of the second aspect or the second aspect.

In a first possible implementation manner, all the base stations in the base station group are synchronized. In a second possible implementation, combining the third aspect or the first possible aspect of the third aspect In an implementation manner, the base station group communicates with the base station controller, including: when the downlink data is sent, the baseband processing unit in the designated one of the base stations in the base station group receives the information sent by the base station controller, by the designated baseband processing unit Transmitting the information sent by the controller to each baseband processing unit of another base station in the same base station group, and each baseband processing unit of the other base stations in the same base station group sends the information to the RRU or RFU connected to each other; or each The baseband processing unit in the base station receives the system information sent by the base station controller, and the baseband processing unit sends the information to the RRU or the RFU connected to each of the baseband processing units; when the uplink data is sent, the method includes: The baseband processing unit in each of the base stations in the base station group receives information transmitted by the RRU or RFU connected to the baseband processing unit, and each of the baseband processing units transmits the received information to the baseband processing. a baseband processing unit in a base station specified in a base station group to which the base station of the unit is located, and then designated by the baseband The baseband processing unit of the base station transmits the received information to the base station controller; or the baseband processing unit in each of the base stations in the base station group receives the RRU or RFU connected to the baseband processing unit The transmitted information, each of the baseband processing units transmits the received information to the base station controller.

According to a fourth aspect, a base station controller is provided, where the base station controller performs connection communication with the base station in the first to third possible implementation manners of the second aspect or the second aspect; or The base station group in the aspect or the first or second possible implementation manner of the third aspect performs connection communication.

The fifth aspect provides a baseband processing unit, including: a receiving module, configured to receive information sent by an RRU or an RFU in the baseband processing unit where the receiving module is located, and to receive information sent by the base station controller. And being used for receiving information sent by another baseband processing unit; the sending module is configured to send information to the RRU or the RFU in the baseband processing unit where the sending module is located, and is further configured to send a message to the base station controller, Used to send information to other baseband processing units.

In a first possible implementation, the baseband processing unit is located in the base station in any of the first to fourth aspects and any one of the first to fourth aspects.

In the embodiment of the present invention, a plurality of base stations form a base station group, and multiple base station groups use different BCCH frequency points, the maximum range saves the BCCH frequency point, and because the same BCCH frequency point is used in a wider range, The interference of the same frequency and adjacent frequency is further reduced. DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention, Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

1 is a schematic diagram of networking of a shared BCCH frequency point according to an embodiment of the present invention;

2 is a schematic diagram of networking of multiple base station groups of a base station group in which three base stations form one base station group according to an embodiment of the present invention;

3 is a communication flowchart of a base station group and a base station controller in which three base stations constitute one base station group according to an embodiment of the present invention;

4 is a further communication flowchart of a base station group and a base station controller in which three base stations constitute one base station group according to an embodiment of the present invention;

FIG. 5 is a schematic block diagram of a baseband processing unit according to an embodiment of the present invention; FIG.

6 is a schematic block diagram of a baseband processing unit in accordance with another embodiment of the present invention. detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without making creative labor are within the scope of the present invention.

1 shows a schematic diagram of a networking system that shares BCCH frequencies in accordance with an embodiment of the present invention. As shown in Figure 1, the networking system includes:

At least three base station groups, one of which is composed of at least two base stations, each of the base stations in the base station group uses the same BCCH frequency point, and the adjacent base station group uses different BCCH frequency points;

At least one base station controller, the base station controller in communication with the base station in the base station group.

In the embodiment of the present invention, a plurality of base stations form a base station group, and multiple base station groups use different BCCH frequency points, the maximum range saves the BCCH frequency point, and because the same BCCH frequency point is used in a wider range, Further, the effect of reducing interference of the same frequency and adjacent frequency is achieved.

As shown in FIG. 1, the system includes at least three base station groups, and the base station group is not a separate network. The device, the base station group is composed of a plurality of base stations, is a type of packet division for multiple base stations, and each base station group is composed of how many base stations, depending on the number of existing BCCH frequency resources and the need to achieve the saved BCCH frequency. The effect is that BCCH frequency resources are extremely scarce, or when more BCCH frequency points are needed, each base station group is composed of more base stations; BCCH frequency resources are relatively scarce, or less BCCH frequency points need to be saved. Next, each base station group is composed of fewer base stations.

In a networking system, a plurality of base station groups are included, and the number of base station groups in one system is determined by the range to be covered by the networking and the number of base stations constituting each base station group. Within a certain networking range, the coverage of each base station is determined, so the number of base stations is also determined. Then, when the number of base stations constituting each base station group is determined as needed, the number of base station groups is also determined within a certain network range.

All base stations in each base station group use the same BCCH frequency point, that is, the sectors covered by each base station in each base station group use the same BCCH frequency point, and each base station also uses the same BCCH frequency point, one base station All sectors in the group use the same BCCH frequency.

Adjacent base station groups use different BCCH frequencies. Within a certain network range, the number of base station groups can be determined. The allocation of the BCCH frequency is determined according to the number of BCCH frequencies used. The allocation of BCCH frequencies refers specifically to how many base station groups share a BCCH frequency. Within a certain network range, there are a certain number of available BCCH frequencies, and the number of base station groups is also determined.

When the number of networking ranges and the number of BCCH frequencies determines that one BCCH frequency can only be used by one base station group, each base station group uses different BCCH frequency points, that is, adjacent base station groups use different BCCH frequencies. Point; When the number of networking ranges and the number of BCCH frequencies determines that one BCCH frequency point needs to be used by multiple base station groups, when the BCCH frequency is allocated, the same base station group cannot use the same BCCH frequency.

The number of base station controllers is at least one, and one base station controller and multiple sets of base stations perform connection communication. The number of base station controllers is determined according to the network coverage and other networking requirements. When the networking system has only one base station controller, the base station controller and all the base station groups perform connection communication; when the networking system has two or more base station controllers, each base station controller can be allocated according to requirements. A group of base stations connected to the communication.

Optionally, synchronization is maintained between all base stations in each of the base station groups.

Specifically, synchronization is maintained between all base stations in each base station group.

Alternatively, a Global Position System (GPS) can be used. The clock synchronization method keeps synchronization between all base stations in each base station group and configures them in the communication network.

The GPS clock system on the base station side of the GPS positioning device receives the information transmitted by the GPS satellite, obtains the pulse signal with the progress of 1PPS and the absolute time of the GPS; the base station clock circuit tracks the signal of the 1PPS to obtain the reference clock, and obtains more signals based on the reference clock. The base station in each network adjusts the frame number according to the absolute number of frames, and the absolute frame number is obtained by the GPS absolute time estimation received by the base station.

Alternatively, airlink soft synchronization techniques can be used to maintain synchronization between all base stations within each base station group. Specifically, the frame number is adjusted by collecting the frame offset information calculated by the mobile station during the asynchronous handover, and the base station under the same base station controller is synchronized by using the slot number and the bit offset between the slots.

Optionally, each base station in each base station group may include one baseband processing unit, and optionally, only one radio remote unit RRU or at least one radio frequency unit RFU, where the RRU or RFU mainly completes the intermediate frequency of the signal. Processing, such as digital I / Q modulation and demodulation, up and down frequency conversion, digital analog signal conversion, RF processing, duplex and other functions.

Optionally, the base station controller communicates with the base station in the base station group, including: when downlink data is transmitted,

Optionally, the baseband processing unit in the designated one of the base stations in each base station receives the information sent by the base station controller, and the information sent by the controller is sent by the designated baseband processing unit to each baseband processing unit of the other base stations in the same base station group. The baseband processing units of other base stations in the same base station group then send information to the respective connected RRUs or RFUs.

Optionally, the baseband processing unit in each base station receives system information sent by the base station controller, and the baseband processing unit sends the information to the RRU or RFU connected to each baseband processing unit.

Optionally, the base station controller communicates with the base station in the base station group, including: when uplink data is transmitted,

Optionally, the baseband processing unit in each base station in each base station group receives information sent by the RRU or RFU connected to the baseband processing unit, and each baseband processing unit sends the received information to the base station where the baseband processing unit is located. The baseband processing unit in one of the designated base stations in the associated base station group transmits the received information to the base station controller by the baseband processing unit of the designated base station.

Optionally, the baseband processing unit in each base station in each base station group receives information sent by the RRU or RFU connected to the baseband processing unit, and each baseband processing unit transmits the received information to the base station controller.

In the embodiment of the present invention, the designated baseband processing unit may optionally be in a base station group. Specify any baseband processing unit as the designated baseband processing unit.

Optionally, the uplink data may include information such as level, power, TA value, and receiving angle. Alternatively, the downlink data may include system information and the like.

In an implementation scenario of the embodiment of the present invention, FIG. 2 is a network diagram of a base station group in a shared BCCH frequency point system, where the system is composed of one base station controller, as shown in FIG. 2, and 20 networking systems are also provided. The base station group is configured such that each small circle and three surrounding areas of the same pattern are enough to cover an area covered by a base station, and the area covered by the base station adjacent to the same pattern constitutes an area covered by a base station group; The base station group is composed of three base stations; as shown in FIG. 3, all the cells covered by each of the three base station groups form a cluster, and the three base station groups are three base station groups with the same pattern in the figure, and each base station group in the cluster The covered cells share one BCCH frequency point, and each of the three base station groups in each cluster uses three BCCH frequency points, and the three BCCH frequency points constitute one frequency point set, and the same frequency point set is used between the cluster and the cluster. That is, all the cells covered by the 60 base stations use a total of three BCCH frequency points, and the cells covered by the three base stations in each cluster respectively use the three different BCCH frequency points, and the same frequency point set is used between the cluster and the cluster.

The baseband processing unit in the base station corresponding to any cell in each base station group serves as a designated base station control unit. When the downlink data is transmitted, the designated baseband processing unit is configured to receive system broadcast information or service information sent by the base station controller, and the designated baseband processing unit forwards to the other two baseband processing in the base station used by the other group in the same group. a unit, each baseband processing unit receives the information forwarded by the designated baseband processing unit, and then forwards the information to the RRUs connected to each other; when the uplink data is transmitted, the baseband processing units in all the base stations in each group of base stations receive the RRUs sent by the connected RRUs. The uplink data information is forwarded to the designated base station control unit in each group, and the designated baseband processing unit in each group of base stations receives uplink data information forwarded by other baseband processing units in the same group, and then the designated baseband processing unit will The uplink data information is forwarded to the base station controller. The uplink data information includes information such as level, power, TA value, and reception angle.

In this embodiment, the base station group is created, so that all the base stations in the base station group use the same BCCH frequency point, and the same anti-interference effect as the embodiment is required, compared with the existing technology for saving the BCCH frequency point. The BCCH frequency point is used in the embodiment of the present invention. Therefore, the embodiment of the present invention achieves the effect of saving the BCCH frequency. The embodiment of the present invention reduces the same frequency and adjacent frequency interference, and does not use the base station group structure in this embodiment. In this embodiment, when the networking is performed in the same coverage area and the same three BCCH frequency points are used in this embodiment, in this embodiment, a single BCCH frequency point covers a larger range, and the number of interference sources per unit area. Greatly reduced, at the same time, the same frequency of the BCCH frequency, The network space isolation between the adjacent frequency cells is greatly increased, and the interference energy between the two is greatly reduced. Therefore, the embodiment of the present invention also effectively reduces the same frequency and adjacent frequency interference of the BCCH frequency network.

In another embodiment of the present invention, a base station is provided, the base station uses a BCCH frequency point, and the base station and at least one base station adjacent to the base station use the same BCCH frequency point as the base station.

Specifically, all the cells covered by the base station use one BCCH channel, and at least one of the base stations adjacent to the base station of the base station uses the same BCCH channel as the base station.

Optionally, the base station is synchronized with a base station adjacent to the base station and using the same BCCH frequency point as the base station.

Optionally, the global positioning system (GPS) clock synchronization method may be used to keep the base stations synchronized, and the GPS positioning system on the base station side of the GPS positioning device is configured in the communication network to receive the information sent by the GPS satellites. Obtaining a pulse signal with a progress of 1PPS and an absolute time of the GPS; the base station clock circuit tracks the signal of the 1PPS to obtain a reference clock, and obtains more signals based on the reference clock; the base station in each network adjusts the frame number according to the absolute number of frames, The absolute number of frames is obtained from the GPS absolute time estimate received by the base station.

Alternatively, the air interface soft synchronization technique can be used to keep the base stations synchronized. Specifically, the frame number is adjusted by collecting the frame offset information calculated by the mobile station during the asynchronous handover, and the slot number between the time slot and the time slot is used to achieve the synchronization effect of the base station under the same base station controller.

Optionally, the base station may include a BBU baseband processing unit, and optionally, at least one RRU or at least one RFU.

The base station in the embodiment of the present invention can implement the functions of the base station in the system embodiment of the present invention sharing the BCCH frequency.

In the base station of the embodiment of the present invention, the cell covered by the base station uses the same BCCH frequency point, and the same BCCH frequency point is used by the base station adjacent to the base station, so that the same BCCH frequency point covers a larger range, so that The BCCH frequency is saved within a fixed network range.

In another embodiment of the present invention, a base station group is provided, which is composed of at least two base stations in the base station embodiment provided by the present invention.

The base station group is not a single network device. The base station group is composed of multiple base stations. It is a kind of packet division for multiple base stations. How many base stations are formed by each base station group depends on the number of existing BCCH frequency resources and The effect of saving the BCCH frequency, the BCCH frequency resource is extremely scarce, or the need to save more BCCH frequency, then each base station group is composed of more base stations; BCCH frequency resources are relatively scarce, or need Save less BCCH frequency, then every The base station group consists of fewer base stations.

Optionally, synchronization is maintained between all base stations in the base station group.

Optionally, a Global Position System (GPS) clock synchronization method may be used to synchronize all base stations in the base station group, and a GPS positioning system on the base station side of the GPS positioning device is configured in the communication network. The information transmitted by the GPS satellite obtains the pulse signal of the progress of 1PPS and the absolute time of the GPS; the base station clock circuit tracks the signal of the 1PPS to obtain the reference clock, and obtains more signals based on the reference clock; the base station in each network is based on the absolute frame The number is adjusted by the frame number, and the absolute number of frames is obtained by the GPS absolute time estimation received by the base station.

Alternatively, air interface soft synchronization techniques can be used to maintain synchronization between all base stations within the base station group. Specifically, the frame number is adjusted by collecting the frame offset information calculated by the mobile station during the asynchronous handover, and the slot number and the bit offset between the slots are used to achieve the synchronization effect of the base station under the same base station controller.

Optionally, as shown in FIG. 3 and FIG. 4, a communication diagram of a base station group composed of three base stations is shown. As shown in the figure, a baseband processing unit in FIG. 3 and FIG. 4 is connected to the baseband processing unit. The three RRUs/RFUs form a base station and the BSC is a base station controller.

Optionally, as shown in FIG. 3, the baseband processing unit in the designated one base station in each base station group receives the information sent by the base station controller, and the information sent by the controller is sent by the designated baseband processing unit to the other base station group. Each baseband processing unit of the base station, and each baseband processing unit of other base stations in the same base station group sends information to the respective connected RRU or RFU.

Optionally, as shown in Figure 4, the baseband processing unit in each base station receives system information transmitted by the base station controller, and the baseband processing unit transmits the information to the RRU or RFU to which each baseband processing unit is connected.

Optionally, as shown in FIG. 3, the baseband processing unit in each base station in each base station group receives information sent by the RRU or RFU connected to the baseband processing unit, and each baseband processing unit sends the received information. The baseband processing unit in one of the designated base stations in the group of the base station to which the baseband processing unit is located is sent to the base station controller by the baseband processing unit of the designated base station. Optionally, as shown in FIG. 4, the baseband processing unit in each base station in each base station group receives information sent by the RRU or RFU connected to the baseband processing unit, and each baseband processing unit sends the received information. Give the base station controller.

In the embodiment of the present invention, the designated baseband processing unit may optionally specify any one of the baseband processing units as a designated baseband processing unit in one base station group.

In the embodiment of the present invention, the cells covered by the base station group use the same BCCH frequency point, so that the same BCCH frequency point covers a larger range, so that the BCCH frequency point is saved within a fixed networking range.

FIG. 5 shows a schematic block diagram of a baseband processing unit in accordance with an embodiment of the present invention. As shown in FIG. 5, the baseband processing unit includes:

a receiving module, configured to receive information sent by an RRU or an RFU in the baseband processing unit where the receiving module is located, to receive information sent by the base station controller, and to receive information sent by another baseband processing unit;

And a sending module, configured to send information to the RRU or RFU in the baseband processing unit where the sending module is located, to send a message to the base station controller, and to send information to other baseband processing units.

Alternatively, the baseband processing unit may be located in a base station in an embodiment of the system of the invention or in a base station embodiment or a base station group embodiment.

In the embodiment of the present invention, the baseband processor can communicate with other base stations in addition to communicating with the base station controller, so that the base station where the baseband processor is located can communicate with other base stations, so that different base stations are configured to use the same. The base station group of the BCCH frequency thus saves the BCCH frequency.

FIG. 6 shows a schematic block diagram of a baseband processing unit in accordance with an embodiment of the present invention. As shown in FIG. 6, the baseband processing unit includes:

a receiver, configured to receive information sent by an RRU or an RFU in the baseband processing unit where the receiver is located, to receive information sent by the base station controller, and to receive information sent by other baseband processing units;

And a transmitter, configured to send information to the RRU or RFU in the baseband processing unit where the transmitter is located, to send a message to the base station controller, and to send information to other baseband processing units.

Optionally, the baseband processing unit may be located in the system embodiment or base station embodiment or base of the present invention. In the base station in the station group embodiment.

It should be understood that in the embodiment of the present invention, the term "and/or" is merely an association describing the associated object, indicating that there may be three relationships. For example, A and / or B, can mean: A exists separately, there are A and B, and there are three cases of B alone. In addition, the character "/" in this article generally indicates that the contextual object is an "or" relationship.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both, for clarity of hardware and software. Interchangeability, the composition and steps of the various examples have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.

A person skilled in the art can clearly understand that, for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the several embodiments provided herein, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection. The components displayed for the unit may or may not be physical units, ie may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.

In addition, each functional unit in various embodiments of the present invention may be integrated into one processing unit In addition, each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.

The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention contributes in essence or to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention. The foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and the like. The medium of the code.

The above is only the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any equivalent person can be easily conceived within the technical scope of the present invention. Modifications or substitutions are intended to be included within the scope of the invention. Therefore, the scope of the invention should be determined by the scope of the claims.

Claims

Rights request

A system based on a shared broadcast control channel BCCH frequency point network, wherein the system includes:

At least three base station groups, each of the base station groups includes at least two base stations, each base station group uses the same BCCH frequency point, and the adjacent two base station groups of the at least three base station groups BCCH frequency is different;

At least one base station controller, the at least one base station controller for communicating with the base station within the group of base stations.

2. The system of claim 1 wherein synchronization is maintained between base stations within each of said set of base stations.

The system according to claim 1 or 2, wherein each of the base stations in the group of base stations comprises a baseband processing unit BBU, and each of the base stations in the group of base stations further comprises at least one The radio remote unit RRU or at least one radio unit RFU.

The system according to any one of claims 1 to 3, wherein each of the base station groups specifies a baseband processing unit in a base station, and the designated baseband processing unit is configured to receive the The information sent by the base station controller is further used to send information sent by the controller to each baseband processing unit of another base station in the same base station group, and each baseband processing unit of another base station in the same base station group is used to The information is sent to the RRU or RFU to which the respective connection is connected; or the baseband processing unit in each of the base stations is configured to receive information sent by the base station controller, and the baseband processing unit is configured to send the information to And the RRU or RFU connected to each of the baseband processing units.

The system according to any one of claims 1 to 3, characterized in that

The baseband processing unit in each of the base stations in each of the base station groups is configured to receive information sent by the RRU or RFU to which the baseband processing unit is connected, each of the baseband processing units being used for And transmitting the received information to a baseband processing unit in a designated base station in a base station group of the base station where the baseband processing unit is located, where the baseband processing unit of the designated base station is used to receive the received Sending the information to the base station controller; or

The baseband processing unit in each of the base stations in each of the base station groups is configured to receive information sent by the RRU or RFU to which the baseband processing unit is connected, each of the baseband processing units being used for The received information is sent to the base station controller.

6. A baseband processing unit, comprising: a receiving module, configured to receive information sent by an RRU or an RFU in the baseband processing unit where the receiving module is located, to receive information sent by a base station controller, and to receive information sent by another baseband processing unit. information;

7. A base station, characterized in that

The base station uses a BCCH frequency point;

The base station and at least one base station adjacent to the base station use the same BCCH frequency point as the base station.

8. The base station according to claim 7, wherein the base station and the base station using the same BCCH frequency point and the base station are synchronized with each other.

The base station according to claim 7 or 8, wherein the base station comprises a baseband processing unit BBU according to claim 7, further comprising at least one radio remote unit RRU or at least one radio unit RFU.

The base station according to any one of claims 7 to 9, wherein the base station communicates with a base station controller.

A base station group, characterized in that the base station group is constituted by at least two base stations according to any one of claims 7 to 10.

The base station group according to claim 11, wherein all base stations in the base station group are synchronized.

The base station group according to any one of claims 11 to 12, wherein the base station group communicates with the base station controller, including: when downlink data is transmitted,

And the baseband processing unit in the designated one of the base stations in the base station group receives the information sent by the base station controller, and sends the information sent by the controller to the same base station group by the designated baseband processing unit. Each baseband processing unit of the base station, each baseband processing unit of another base station in the same base station group sends the information to the RRU or RFU to which the respective connection is connected; or

The baseband processing unit in each of the base stations receives system information transmitted by the base station controller, and the baseband processing unit transmits the information to the RRU or RFU connected to each of the baseband processing units ; When sending uplink data, it includes:

The baseband processing unit in each of the base stations in each of the base station groups receives information transmitted by the RRU or RFU connected to the baseband processing unit, and each of the baseband processing units will receive Sending the information to a baseband processing unit in a base station designated by a base station group of the base station where the baseband processing unit is located, and transmitting, by the baseband processing unit of the designated base station, the received information. Giving the base station controller; or

The baseband processing unit in each of the base stations in each of the base station groups receives information transmitted by the RRU or RFU connected to the baseband processing unit, and each of the baseband processing units will receive The information is sent to the base station controller.

A base station controller, characterized in that the base station controller performs connection communication with the base station according to any one of claims 7 to 10; or with the base station group according to any one of claims 11 to 13 Make connection communication.