CN105393592B

CN105393592B - Base station system, equipment and multi-point cooperative processing method

Info

Publication number: CN105393592B
Application number: CN201480033578.5A
Authority: CN
Inventors: 王珏平; 王建春; 蒋亚军; 何勇
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2014-05-05
Filing date: 2014-05-05
Publication date: 2019-08-16
Anticipated expiration: 2034-05-05
Also published as: WO2015168839A1; CN105393592A

Abstract

The embodiment of the present invention provides a kind of base station system, equipment and multi-point cooperative processing method, the system includes: the first radio-frequency unit, the second radio-frequency unit and digital processing unit, first radio-frequency unit, for exporting the first base band data, first base band data is sent to the digital processing unit, the type of first base band data includes time domain I/Q data, frequency domain I/Q data, hard bit data or L2 data；The digital processing unit, first base band data sent for receiving first radio-frequency unit, is sent to second radio-frequency unit for first base band data；Second radio-frequency unit, first base band data sent for receiving the digital processing unit realize that the multi-point cooperative CoMP in base station is handled according to first base band data.Based on above scheme, the exchange of base band data is carried out between radio-frequency unit by digital processing unit, multi-point cooperative is handled between realizing sector, to effectively improve gain.

Description

Base station system, equipment and multi-point cooperative processing method

Technical field

The present embodiments relate to fields of communication technology, and more particularly, to base station system, equipment and multi-point cooperative Processing method.

Background technique

Base station is the important equipment in wireless access network, creates and connects with user equipment, is used for transmission wireless signal, base station It include mainly RU (Radio Unit, radio frequency unit) and BBU (Base Band Unite, baseband processing unit), wherein RU is used for Uplink receiving and downlink may include RRU (Radio Remote Unite, Remote Radio Unit) or RFU (Radio Frequency Unit, radio frequency unit), BBU is used to carry out Base-Band Processing to the data of transmission, realizes that master control transmission and clock are same Step.

In centralized base station (All in one) framework, RXU and BBU are integrated, and externally provide S1 and X2 interface. For more sector sites, the website of each sector includes integrated RRU and BBU, and the website of each sector all independently carries out Data transmission and processing, therefore, it is impossible to the multi-point cooperative (coordinated multiple point, CoMP) between realizing sector Processing.

Summary of the invention

The embodiment of the present invention provides a kind of base station system, equipment and multi-point cooperative processing method, can be realized multi-point cooperative Processing improves gain.

In a first aspect, providing a kind of base station system, which includes: the first radio-frequency unit, the second radio-frequency unit sum number Word processing device, first radio-frequency unit and the second radio-frequency unit respectively correspond two sector sites in the same base station, First base band data is sent to the digital processing and filled by first radio-frequency unit for exporting the first base band data It sets, the type of first base band data includes time domain inphase quadrature I/Q data, frequency domain I/Q data, hard bit data or L2 number According to；The digital processing unit, first base band data sent for receiving first radio-frequency unit, by described first Base band data is sent to second radio-frequency unit；Second radio-frequency unit is sent for receiving the digital processing unit First base band data, according to first base band data realize base station in multi-point cooperative CoMP handle.

With reference to first aspect, in another implementation of first aspect, first radio-frequency unit is further used for The first data are received from user equipment, export first base band data according to first data；Second radio-frequency unit, It is further used for receiving the first data from the user equipment, exports the second base band data according to first data, merge institute It states the second base band data and first base band data and obtains synergistic data, Base-Band Processing output the is carried out to the synergistic data One user face data, wherein first base band data and second base band data are identical base band data type.

Any implementation with reference to first aspect and its in above-mentioned implementation is realized in the another kind of first aspect In mode, second radio-frequency unit, specifically for successively carrying out the low L1-Low of baseband layer 1 processing, layer 1 to the synergistic data High L1-High processing, the processing of layer 2 and the processing of layer 3 export first user face data；Or second radio-frequency unit, Specifically for successively being carried out to the synergistic data described in the L1-High high processing of baseband layer 1, the processing of layer 2 and the processing output of layer 3 First user face data；Or second radio-frequency unit, it is handled specifically for successively carrying out baseband layer 2 to the synergistic data First user face data is exported with the processing of layer 3；Or second radio-frequency unit, be specifically used for the synergistic data into The processing of row baseband layer 3 exports first user face data.

Any implementation with reference to first aspect and its in above-mentioned implementation is realized in the another kind of first aspect In mode, second radio-frequency unit is also used to for first user face data of output to be sent to the digital processing dress It sets；The digital processing unit is also used to receive first user face data that second radio-frequency unit is sent, passes through biography Defeated agreement is by first user plane data transfer to core net.

Any implementation with reference to first aspect and its in above-mentioned implementation is realized in the another kind of first aspect In mode, the digital processing unit is also used to for second user face data to be sent to first radio-frequency unit；Described first Radio-frequency unit is further used for receiving the second user face data from the digital processing unit, to the second user face Data export first base band data after carrying out Base-Band Processing；Second radio-frequency unit, is further used for described first Base band data continues Base-Band Processing and carries out radio frequency processing the second data of output or carry out to first base band data Radio frequency processing exports the second data, and second data are sent to user equipment.

Any implementation with reference to first aspect and its in above-mentioned implementation is realized in the another kind of first aspect In mode, the digital processing unit, when being also used to carry out with first radio-frequency unit and second radio-frequency unit respectively Between it is synchronous.

Any implementation with reference to first aspect and its in above-mentioned implementation is realized in the another kind of first aspect In mode, the digital processing unit, the cooperative scheduling between the cooperative scheduling for being also used to realize between sector or base station.

Second aspect provides a kind of radio-frequency unit, which includes: receiving unit, for receiving digital processing The first base band data that device is sent, wherein first base band data is exported by the first radio-frequency unit, first base Type with data includes time domain inphase quadrature I/Q data, frequency domain I/Q data, hard bit data or L2 data；Processing unit is used The multi-point cooperative CoMP processing in base station is realized in first base band data received according to the receiving unit.

In conjunction with second aspect, in another implementation of second aspect, the receiving unit is also used to from the use Family equipment receives the first data, exports the second base band data according to first data；The processing unit is specifically used for: merging Second base band data and first base band data obtain synergistic data, carry out Base-Band Processing output to the synergistic data First user face data, wherein first base band data and second base band data are identical base band data type.

In conjunction with any implementation in second aspect and its above-mentioned implementation, realized in the another kind of second aspect In mode, the processing unit is specifically used for: the synergistic data is successively carried out the low L1-Low of baseband layer 1 processing, layer 1 it is high L1-High processing, the processing of layer 2 and the processing of layer 3 export first user face data；Or the processing unit is specifically used In: the L1-High high processing of baseband layer 1, the processing of layer 2 and the processing of layer 3 output described first are successively carried out to the synergistic data User face data；Or the processing unit is specifically used for: is successively carried out at the processing of baseband layer 2 and layer 3 to the synergistic data Reason exports first user face data；Or the processing unit is specifically used for: carrying out at baseband layer 3 to the synergistic data Reason exports first user face data.

In conjunction with any implementation in second aspect and its above-mentioned implementation, realized in the another kind of second aspect In mode, the radio-frequency unit further includes the first transmission unit, first transmission unit, and described first for that will export is used Family face data is sent to the digital processing unit, so as to the digital processing unit by transport protocol by first user Face data is transmitted to core net.

In conjunction with any implementation in second aspect and its above-mentioned implementation, realized in the another kind of second aspect In mode, the radio-frequency unit further includes the second sending module, and the processing unit is specifically used for: to first base band data Continue Base-Band Processing and carries out radio frequency processing the second data of output or radio frequency processing is carried out to first base band data Export the second data；Second sending module, for second data to be sent to user equipment；Wherein, described first Base band data, which is first radio-frequency unit, carries out base band according to from the received second user face data of the digital processing unit It is exported after processing.

The third aspect provides a kind of radio-frequency unit, processing unit, for exporting the first base band data, first base Type with data includes time domain inphase quadrature I/Q data, frequency domain I/Q data, hard bit data or L2 data；Transmission unit is used It is sent to digital processing unit in first base band data for exporting the processing unit, so as to the digital processing unit First base band data is sent to second radio-frequency unit, second radio-frequency unit is according to first base band data Realize the multi-point cooperative CoMP processing in base station.

In conjunction with the third aspect, in another implementation of the third aspect, the radio-frequency unit further includes the first reception Unit, first receiving unit, for receiving the first data from user equipment；The processing unit is specifically used for: according to institute It states received first data of receiving unit and exports first base band data.

In conjunction with any implementation in the third aspect and its above-mentioned implementation, realized in the another kind of the third aspect In mode, the radio-frequency unit further includes the second receiving unit, second receiving unit, is used for from the digital processing unit Receive second user face data；The processing unit is specifically used for: to the received second user of second receiving unit Face data exports first base band data after carrying out Base-Band Processing.

Fourth aspect provides a kind of digital processing unit, which includes receiving unit, for receiving the The first base band data that one radio-frequency unit is exported and sent, the type of first base band data include time domain inphase quadrature IQ number According to, frequency domain I/Q data, hard bit data or L2 data；Transmission unit is used for received first base of the receiving unit Band data be sent to the second radio frequency penetrate it is standby, so as to second radio-frequency unit according to first base band data realize base station in Multi-point cooperative CoMP processing.

In conjunction with fourth aspect, in another implementation of the 5th aspect, the receiving unit is also used to receive described The first user face data that second radio-frequency unit is sent, first user face data is that second radio-frequency unit is set from user It is standby to receive the first data, the second base band data is exported according to first data, merges second base band data and described the One base band data obtains synergistic data, Base-Band Processing output is carried out to the synergistic data, wherein first base band data It is identical base band data type with second base band data.The transmission unit, being also used to will be described by transport protocol First user plane data transfer is to core net.

In conjunction with any implementation in fourth aspect and its above-mentioned implementation, another at the 5th aspect is realized In mode, the transmission unit is also used to for second user face data to be sent to first radio-frequency unit, so as to described first Radio-frequency unit exports first base band data after carrying out Base-Band Processing to the second user face data.

In conjunction with any implementation in fourth aspect and its above-mentioned implementation, another at the 5th aspect is realized In mode, the digital processing unit further includes synchronization unit, the synchronization unit, for respectively with first radio-frequency unit Time synchronization is carried out with second radio-frequency unit.

In conjunction with any implementation in fourth aspect and its above-mentioned implementation, another at the 5th aspect is realized In mode, the digital processing unit further include collaboration unit, the collaboration unit, for realizing between sector cooperative scheduling or Cooperative scheduling between base station.

5th aspect, provides a kind of multi-point cooperative processing method, and this method includes that the first radio-frequency unit exports the first base Band data, are sent to digital processing unit for first base band data, the type of first base band data includes that time domain is same Mutually orthogonal I/Q data, frequency domain I/Q data, hard bit data or L2 data；The digital processing unit receives the first radio frequency dress First base band data is sent to the second radio-frequency unit, the first radio frequency dress by first base band data for setting transmission Set two sector sites respectively corresponded in the same base station with the second radio-frequency unit；Second radio-frequency unit receives the number First base band data that word processing device is sent realizes the multi-point cooperative CoMP in base station according to first base band data Processing.

In conjunction with the 5th aspect, in another implementation of the 5th aspect, first radio-frequency unit exports the first base Band data, comprising: first radio-frequency unit receives the first data from user equipment, according to first data output described the One base band data；Second radio-frequency unit realizes that the multi-point cooperative CoMP in base station is handled according to first base band data, Include: second radio-frequency unit from the user equipment the first data of reception, exports the second base band according to first data Data, merge second base band data and first base band data obtains synergistic data, carry out base to the synergistic data Tape handling exports the first user face data, wherein first base band data and second base band data are identical base band number According to type.

In conjunction with any implementation in the 5th aspect and its above-mentioned implementation, another at the 5th aspect is realized In mode, second radio-frequency unit carries out Base-Band Processing to the synergistic data and exports the first user face data, comprising: described Second radio-frequency unit successively carries out the low L1-Low of baseband layer 1 processing, the L1-High high processing of layer 1 to the synergistic data, at layer 2 Reason and the processing of layer 3 export first user face data；Or second radio-frequency unit to the synergistic data successively into The L1-High high processing of row baseband layer 1, the processing of layer 2 and the processing of layer 3 export first user face data；Or described second Radio-frequency unit successively carries out the processing of baseband layer 2 to the synergistic data and the processing of layer 3 exports first user face data；Or Second radio-frequency unit carries out the processing of baseband layer 3 to the synergistic data and exports first user face data.

In conjunction with any implementation in the 5th aspect and its above-mentioned implementation, another at the 5th aspect is realized In mode, the method also includes: first user face data of output is sent to the number by second radio-frequency unit Word processing device；The digital processing unit receives first user face data that second radio-frequency unit is sent, and passes through Transport protocol is by first user plane data transfer to core net.

In conjunction with any implementation in the 5th aspect and its above-mentioned implementation, another at the 5th aspect is realized In mode, the method also includes: second user face data is sent to first radio-frequency unit by the digital processing unit； First radio-frequency unit exports the first base band data, comprising: first radio-frequency unit is received from the digital processing unit The second user face data exports first base band data after carrying out Base-Band Processing to the second user face data；Institute It states the second radio-frequency unit and realizes that the multi-point cooperative CoMP in base station is handled according to first base band data, comprising: described second Radio-frequency unit continues Base-Band Processing to first base band data and carries out radio frequency processing to export the second data or to institute It states the first base band data and carries out radio frequency processing the second data of output, second data are sent to user equipment.

In conjunction with any implementation in the 5th aspect and its above-mentioned implementation, another at the 5th aspect is realized In mode, the method also includes: the digital processing unit is filled with first radio-frequency unit and second radio frequency respectively Set carry out time synchronization.

In conjunction with any implementation in the 5th aspect and its above-mentioned implementation, another at the 5th aspect is realized In mode, the method also includes: the digital processing unit realizes the cooperative scheduling between sector or the cooperative scheduling between base station.

The base station system of the embodiment of the present invention includes the first radio-frequency unit, the second radio-frequency unit and digital processing unit, the One radio-frequency unit and the second radio-frequency unit respectively correspond two sector sites in the same base station, and digital processing unit is by first First base band data of radio-frequency unit output is sent to the second radio-frequency unit, wherein the type of the first base band data includes that time domain is same Mutually orthogonal I/Q data, frequency domain I/Q data, hard bit data or L2 data, the second radio-frequency unit realize base according to the first base band data CoMP processing in standing.Based on above scheme, the exchange of base band data is carried out between radio-frequency unit by digital processing unit, it is real Multi-point cooperative is handled between existing sector, to effectively improve gain.

Detailed description of the invention

In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be in embodiment or description of the prior art Required attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the invention Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings Obtain other attached drawings.

Fig. 1 is the schematic block diagram of the base station system of one embodiment of the invention；

Fig. 2 is the schematic block diagram of the base station system of another embodiment of the present invention；

Fig. 3 is the schematic block diagram of the base station system of further embodiment of the present invention；

Fig. 4 is the schematic block diagram of the radio-frequency unit of one embodiment of the invention；

Fig. 5 is the schematic block diagram of the radio-frequency unit of one embodiment of the invention；

Fig. 6 is the schematic block diagram of the digital processing unit of one embodiment of the invention；

Fig. 7 is the schematic block diagram of the radio-frequency unit of another embodiment of the present invention；

Fig. 8 is the schematic block diagram of the radio-frequency unit of another embodiment of the present invention；

Fig. 9 is the schematic block diagram of the digital processing unit of another embodiment of the present invention；

Figure 10 is the schematic flow chart of the multi-point cooperative processing method of one embodiment of the invention.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts Example, shall fall within the protection scope of the present invention.

It should be understood that the technical solution of the embodiment of the present invention can be applied to various communication systems, and such as: GSM (Global System for Mobile Communications, global mobile communication) system, CDMA (Code Division Multiple Access, CDMA) system, WCDMA (Wideband Code Division Multiple Access, it is wide Band CDMA) system, GPRS (General Packet Radio Service, General Packet Radio Service), LTE system, LTE FDD (Frequency Division Duplex, frequency division duplex) system, LTE TDD (Time Division Duplex, Time division duplex), UMTS (Universal Mobile Telecommunications System, Universal Mobile Communication System) Deng.It should be understood that the present invention does not limit this.

In embodiments of the present invention, UE can be referred to as terminal (Terminal), MS (Mobile Station, mobile station), Mobile terminal (Mobile Terminal) etc., the user equipment can be through RAN (Radio Access Network, wireless access Net) communicated with one or more core nets, for example, user equipment can be mobile phone (or for " honeycomb " phone), Computer etc. with mobile terminal, for example, user equipment can also be portable, pocket, hand-held, built-in computer Or vehicle-mounted mobile device, they exchange voice and/or data with wireless access network.

In embodiments of the present invention, the connection between a component and another component, it may include wiredly and/or wirelessly mode Connection.Wired mode may include but be not limited to the cable that various media are constituted, such as optical fiber, conductor cable or semiconductor circuits Deng；Or including other forms, such as internal bus, circuit, backboard.Wireless mode is that by the connection side of wireless communication Formula, including but not limited to radio frequency, infrared ray, bluetooth etc..Internal or external interface, the interface may be present between two components It can be physical interface or logic interfacing.

Fig. 1 is the schematic block diagram of the base station system of one embodiment of the invention.The base station system 100 of Fig. 1 includes number Processing unit 103, the first radio-frequency unit 101 and the second radio-frequency unit 102, digital processing unit 103 are filled with the first radio frequency respectively 101 are set to be connected with the second radio-frequency unit 102.

First base band data is sent to digital processing unit for exporting the first base band data by the first radio-frequency unit 101 103。

Digital processing unit 103, for receiving the first base band data of the first radio-frequency unit 101 transmission, by the first base band Data are sent to the second radio-frequency unit 102.

Second radio-frequency unit 102, for receiving the first base band data of the transmission of digital processing unit 103, according to the first base The CoMP processing in base station is realized with data.

The type of first base band data may include time domain IQ (In-phase Quadrature, inphase quadrature) data, frequency Domain I/Q data, hard bit data or L2 (layer 2) data.

It should be pointed out that the radio-frequency unit of the embodiment of the present invention be referred to as intensified radio-frequency unit (eRU) can Realize radio frequency processing (such as middle radio frequency processing) function and base band L1/L2/L3 (1/ layer 2/ layer 3 of layer) processing function.Digital processing dress It sets and is referred to as simplified digital processing element (sDU) for realizing the base band data exchange between radio-frequency unit, it can be with Realize the functions such as base band cooperative scheduling function, master control transmission or clock processing.Radio-frequency receiving-transmitting and Base-Band Processing in radio-frequency unit Function can be by Single-Chip Integration on a physical entity, in such manner, it is possible to reduce system cost.It should be understood that the present invention is real It applies example and this is not limited, can also be not integrated on a physical entity.In addition, the radio-frequency unit of the embodiment of the present invention can be with All it is high-power RF device, can also is all small-power radio-frequency unit, high-power RF can be used with portion radio frequency device Device, portion radio frequency device use small-power radio-frequency unit.

Interface between digital processing unit and radio frequency handling device is in addition to that can also include: including above-mentioned base band data User face data, clock data, control face data (including management and signaling etc.) or scheduling data etc..

As another embodiment of the invention, base station system 100 can also further expand its function.

Illustratively, the first radio-frequency unit 101 can be further used for receiving the first data from user equipment, according to first Data export the first base band data.Second radio-frequency unit 102 can be further used for receiving the first data from user equipment, according to First data export the second base band data, merge the second base band data and the first base band data obtains synergistic data, to collaboration number The first user face data is exported according to Base-Band Processing is carried out, wherein the first base band data and the second base band data are identical base band number According to type.Realize uplink CoMP processing.

It should be understood that the embodiment of the present invention is not construed as limiting the number of radio-frequency unit, it can be two or more, more Under sector site scene, the corresponding radio-frequency unit of each sector site.It should also be understood that carrying out penetrating for uplink multi-point cooperative processing Frequency device can be two or more.For example, the second radio-frequency unit can receive what other 1 the first radio-frequency unit were sent 1 the first base band data merges the second base band data of 1 the first base band data and second radio-frequency unit output, Also multiple base band datas corresponding with multiple radio-frequency unit that other any number of radio-frequency units are sent be can receive, it will Second base band data and multiple base band data merge.In addition, the first base band data of the first radio-frequency unit output can also To be after synergistic data is carried out Base-Band Processing by multi-point cooperative treated data or the second radio-frequency unit, through digital processing Device is sent to other radio-frequency units in addition to the first radio-frequency unit, continues multi-point cooperative by other radio-frequency units Reason.The embodiment of the present invention does not limit this.

In order to facilitate understanding, the embodiment of the present invention will be illustrated so that the multi-point cooperative of two radio-frequency units is handled as an example.

It is described in detail below with reference to the schematic architecture of Fig. 2.Portion may be implemented in corresponding first radio-frequency unit in sector 1 Divided data interface only carries out radio frequency processing to data or carries out part Base-Band Processing.

Specifically, the second radio-frequency unit can be low (L1-Low) specifically for successively carrying out baseband layer 1 to synergistic data Processing, layer 1 high (L1-High) processing, layer 2 (L2) processing and layer 3 (L3) processing the first user face data of output.For example, with Corresponding second radio-frequency unit of corresponding first radio-frequency unit in the first data sector 1 and sector 2 that family equipment is sent can receive It arrives, the first radio-frequency unit 201 can be used for carrying out radio frequency processing and the first base of output to from received first data of user equipment Band data, as time domain I/Q data, are sent to the second radio-frequency unit 202 for the first base band data by digital processing unit 203. Second radio-frequency unit 202 can be used for carrying out radio frequency processing and the second base band of output to from received first data of user equipment The first base band data that data, also reception digital processing unit 203 are sent, after merging the first base band data and the second base band data Subsequent base band L1 (including L1-Low and L1-High), L2 and L3 processing are carried out, the first user face data is exported, passes through number Processing unit 203 is transmitted to core net.

Alternatively, the second radio-frequency unit can be specifically used for synergistic data is successively carried out baseband layer 1 it is L1-High high processing, 2 processing of layer and processing the first user face data of output of layer 3.It is merged into the first base band data and the second base band of synergistic data The base band data type of data is frequency domain I/Q data.For example, corresponding first radio frequency in the first data sector 1 that user equipment is sent Corresponding second radio-frequency unit of device and sector 2 can receive, and the first radio-frequency unit 201 can be used for connecing to from user equipment The first data received carry out radio frequency and L1-Low handles and export the first base band data, as frequency domain I/Q data, at number It manages device 203 and first base band data is sent to the second radio-frequency unit 202.Second radio-frequency unit 202 can be used for from Equipment received first data in family carry out radio frequency and L1-Low is handled and exported the second base band data, also reception digital processing unit 203 the first base band datas sent, merge carry out after the first base band data and the second base band data subsequent base band L1-High, L2 and L3 processing the first user face data of output, is transmitted to core net by digital processing unit 203.

Alternatively, the second radio-frequency unit can be specifically used for synergistic data is successively carried out baseband layer 2 processing and layer 3 handle it is defeated The base band data type of first user face data out, that is, the first base band data and the second base band data that are merged into synergistic data is Hard bit data.Similar example can be with reference to above-mentioned, and details are not described herein again.

Alternatively, the second radio-frequency unit can be specifically used for carrying out synergistic data in first user face of the processing output of baseband layer 3 Data, that is, the base band data type of the first base band data and the second base band data that are merged into synergistic data are L2 data.It is similar Example can be with reference to above-mentioned, details are not described herein again.

Further, digital processing unit 203 can be also used for receiving the first user face that the second radio-frequency unit 202 is sent First user face data is sent to core net by transport protocol by data.

Illustratively, digital processing unit 103 can be also used for second user face data being sent to the first radio-frequency unit 101.First radio-frequency unit 101 can be further used for receiving second user face data from digital processing unit 103, use second Family face data exports the first base band data after carrying out Base-Band Processing.Second radio-frequency unit 102 can be further used for the first base Band data continue Base-Band Processing and carry out radio frequency processing the second data of output or carry out at radio frequency to the first base band data Second data are sent to user equipment by reason the second data of output.Realize downlink CoMP processing.

It should be understood that the embodiment of the present invention is not construed as limiting the number of radio-frequency unit, it can be two or more, more Under sector site scene, the corresponding radio-frequency unit of each sector site.It should also be understood that carrying out penetrating for downlink multi-point cooperative processing Frequency device can be two or more.For example, the first radio-frequency unit can receive by the other of digital processing unit forwarding The base band data of radio-frequency unit, the first radio-frequency unit export the first base band data and are transmitted to the second radio frequency dress through digital processing unit It sets.Or second radio-frequency unit received first base band data exported into the second base band data after Base-Band Processing, pass through number Processing unit is transmitted to other radio-frequency units.

Specifically, the second radio-frequency unit can be specifically used for carrying out L3 processing to received first radio-frequency unit that has been subjected to The first base band data successively carry out baseband layer 2 processing, layer 1 it is L1-High high processing, the low L1-Low of layer 1 processing and radio frequency at Reason the second data of output.That is the base band data type of the first base band data is L2 data.

Alternatively, the second radio-frequency unit can be specifically used for carrying out L3 and L2 processing to received first radio-frequency unit that has been subjected to The first base band data successively carry out base band L1-High processing, L1-Low processing and radio frequency processing export the second data.Close And at the base band data type of the first base band data of synergistic data and the second base band data be hard bit data.

Alternatively, the second radio-frequency unit can be specifically used for carrying out L3, L2 processing to received first radio-frequency unit that has been subjected to Base band L1-Low processing is successively carried out with the first base band data of L1-High processing and radio frequency processing exports the second data.I.e. The base band data type of one base band data is frequency domain I/Q data.

Alternatively, the second radio-frequency unit can be specifically used for carrying out L3, L2 processing to received first radio-frequency unit that has been subjected to Radio frequency processing, which is carried out, with the first base band data that L1-High and L1-Low is handled exports the second data.That is the first base band data Base band data type is time domain I/Q data.

Illustratively, ETH (Ethernet, ether can be passed through between digital processing unit 103 and each radio-frequency unit Net) interface is connected.

Illustratively, digital processing unit 103 can be also used for respectively with the first radio-frequency unit and the second radio-frequency unit into Row time synchronization, it is possible to further for carrying out time synchronization by synchronous ethernet mode.

In addition, digital processing unit 103 can be also used for realizing the cooperative scheduling between sector or the cooperative scheduling between base station. The realization of coordinated scheduling function is uniformly scheduled processing for example, the information of each sector can be collected, and then issues scheduling Each radio-frequency unit is ordered, specifically, traffic order can indicate that radio-frequency unit carries out CoMP processing.

Illustratively, digital processing unit 103 can be also used for realizing the OM (Operation of base station system Management, operation and maintenance) processing, for example, being configured, being updated, loaded or safeguard to inside of base station data etc. and operated.

Therefore, multiple radio-frequency units can share a digital processing unit transmitted, Operation and Maintenance and the function such as synchronous Can, a corresponding digital processing unit is configured without each radio-frequency unit, to reduce the cost of system.

Illustratively, digital processing unit 103 can be also used for through transport protocol, such as including IPSEC security protocol The data interaction of user face or control plane is carried out with core net.Specifically, it can be interacted by S1 interface or X2 interface.

Illustratively, base station system 100 can also externally provide baseband interface, can be deployed in digital processing unit 103 In, schematically as shown in figure 3, base station 1 includes 3 sectors, each sector corresponds to a radio-frequency unit, and 3 radio-frequency units are total With a digital processing unit, digital processing unit controls the data between SW (Switch, exchange) unit realization radio-frequency unit Interaction, the interaction between transport protocol processing, realization and core net can be carried out or carry out time synchronization etc., it can also externally mention For baseband interface, base band data in base station 1, including but not limited to time domain I/Q data, frequency domain I/Q data or L2 data etc. can be with It is exported by the baseband interface, realizes the interaction with the base band datas of other base stations through Switching Module, such as the interaction of base station 2, i.e., Realize the cooperative transmission between base station.

Fig. 4 is the schematic block diagram of the radio-frequency unit of one embodiment of the invention.The radio-frequency unit 400 of Fig. 4 is above-mentioned base An example of the second radio-frequency unit in system of standing, radio-frequency unit 400 include receiving unit 401 and processing unit 402.

Receiving unit 401 is used to receive the first base band data of digital processing unit transmission, wherein the first base band data is By the output of the first radio-frequency unit.

Processing unit 402 is used to realize that the CoMP in base station is handled according to received first base band data of receiving unit 401.

The type of first base band data may include time domain I/Q data, frequency domain I/Q data, hard bit data or L2 data.

It should be pointed out that the radio-frequency unit of the embodiment of the present invention be referred to as intensified radio-frequency unit (eRU) can Realize radio frequency processing (such as middle radio frequency processing) function and base band L1/L2/L3 (1/ layer 2/ layer 3 of layer) processing function.Digital processing dress It sets and is referred to as simplified digital processing element (sDU) for realizing the base band data exchange between radio-frequency unit, it can be with Realize the functions such as base band cooperative scheduling function, master control transmission or clock processing.Radio-frequency receiving-transmitting and Base-Band Processing in radio-frequency unit Function can be by Single-Chip Integration on a physical entity, in such manner, it is possible to reduce system cost.It should be understood that the present invention is real It applies example and this is not limited, can also be not integrated on a physical entity.Between digital processing unit and each radio-frequency unit It can be connected by ETH interface.In addition, the radio-frequency unit of the embodiment of the present invention can all be high-power RF device, it can also To be all small-power radio-frequency unit, high-power RF device can be used with portion radio frequency device, portion radio frequency device is using small Power RF device.

The first base band that the second radio-frequency unit of the embodiment of the present invention is forwarded according to data processing module from the first radio-frequency unit Data realize the CoMP processing in base station.Based on above scheme, base band number is carried out by digital processing unit between radio-frequency unit According to exchange, realize sector between multi-point cooperative handle, to effectively improve gain.

The radio-frequency unit 400 can be realized the function that the second radio-frequency unit is related in above-mentioned base station system, to avoid repeating, The description similar with above-mentioned base station system is omitted by appropriate.

Optionally, as one embodiment, receiving unit 401 can be also used for receiving the first data, root from user equipment The second base band data is exported according to the first data.Processing unit 402 can be specifically used for merging the second base band data and the first base band Data obtain synergistic data, to synergistic data carry out Base-Band Processing export the first user face data, wherein the first base band data and Second base band data is identical base band data type.Realize uplink CoMP processing.

It should be understood that the embodiment of the present invention is not construed as limiting the number of radio-frequency unit, it can be two or more, more Under sector site scene, the corresponding radio-frequency unit of each sector site.It should also be understood that carrying out penetrating for uplink multi-point cooperative processing Frequency device can be two or more.For example, the second radio-frequency unit can receive what other 1 the first radio-frequency unit were sent 1 the first base band data merges the second base band data of 1 the first base band data and second radio-frequency unit output, Also multiple base band datas corresponding with multiple radio-frequency unit that other any number of radio-frequency units are sent be can receive, it will Second base band data and multiple base band data merge.In order to facilitate understanding, the embodiment of the present invention will be filled with two radio frequencies It is illustrated for the multi-point cooperative processing set.

Optionally, processing unit 402 can be specifically used for successively carrying out synergistic data base band L1-Low processing, L1- High processing, the processing of layer 2 and processing the first user face data of output of layer 3.Or processing unit 402 can be specifically used for association Base band L1-High processing, the processing of layer 2 and processing the first user face data of output of layer 3 are successively carried out with data.Alternatively, processing Unit 402 can be specifically used for successively carrying out synergistic data the processing of baseband layer 2 and processing the first user face data of output of layer 3. Alternatively, processing unit 402 can be specifically used for carrying out synergistic data processing the first user face data of output of baseband layer 3.Specifically Example can be with reference to above-mentioned, details are not described herein again.

Further, radio-frequency unit 400 can also include the first transmission unit 403.First transmission unit 403 is used for will be defeated The first user face data out is sent to digital processing unit, so that digital processing unit passes through transport protocol for the first user face Data are transmitted to core net.

Optionally, as another embodiment, processing unit 402 can be specifically used for continuing the first base band data Base-Band Processing simultaneously carries out radio frequency processing the second data of output or carries out radio frequency processing the second data of output to the first base band data. Radio-frequency unit 400 can also include the first transmission unit 403, and the second data are sent to user equipment by the second transmission unit 403. Wherein, to be the first radio-frequency unit carry out base band according to from the received second user face data of digital processing unit to the first base band data It is exported after processing.Realize downlink CoMP processing.

It should be understood that the embodiment of the present invention is not construed as limiting the number of radio-frequency unit, it can be two or more, more Under sector site scene, the corresponding radio-frequency unit of each sector site.It should also be understood that carrying out penetrating for downlink multi-point cooperative processing Frequency device can be two or more.For example, the second radio-frequency unit is by received first base band data after Base-Band Processing The base band data of output is transmitted to other radio-frequency units by digital processing unit.Specific example can be with reference to above-mentioned, herein It repeats no more.

Fig. 5 is the schematic block diagram of the radio-frequency unit of one embodiment of the invention.The radio-frequency unit 500 of Fig. 5 is above-mentioned base An example of the first radio-frequency unit in system of standing, radio-frequency unit 500 include processing unit 501 and transmission unit 502.

Processing unit 501 is for exporting the first base band data.

Transmission unit 502, the first base band data for exporting processing unit 501 are sent to digital processing unit, with Just the first base band data is sent to the second radio-frequency unit by digital processing unit, and the second radio-frequency unit is according to the first base band data reality CoMP processing in existing base station.

It should be pointed out that the radio-frequency unit of the embodiment of the present invention be referred to as intensified radio-frequency unit (eRU) can Realize radio frequency processing (such as middle radio frequency processing) function and base band L1/L2/L3 (1/ layer 2/ layer 3 of layer) processing function.Digital processing dress It sets and is referred to as simplified digital processing element (sDU) for realizing the base band data exchange between radio-frequency unit, it can be with Realize the functions such as base band cooperative scheduling function, master control transmission or clock processing.Radio-frequency receiving-transmitting and Base-Band Processing in radio-frequency unit Function can be by Single-Chip Integration on a physical entity, in such manner, it is possible to reduce system cost.It should be understood that the present invention is real It applies example and this is not limited, can also be not integrated on a physical entity.Between digital processing unit and each radio-frequency unit It can be connected by ETH interface.

The first radio-frequency unit of the embodiment of the present invention exports the first base band data, is filled by data processing module second radio frequency It sets to realize that the CoMP in base station is handled.Based on above scheme, base band number is carried out by digital processing unit between radio-frequency unit According to exchange, realize sector between multi-point cooperative handle, to effectively improve gain.

The radio-frequency unit 500 can be realized the function that the first radio-frequency unit is related in above-mentioned base station system, to avoid repeating, The description similar with above-mentioned base station system is omitted by appropriate.

Optionally, as one embodiment, radio-frequency unit 500 can also include the first receiving unit 503, and first receives list For receiving the first data from user equipment, processing unit 501 can be specifically used for member 503: received according to receiving unit 503 First data export the first base band data.Subsequent second radio-frequency unit can merge the second base band data and first base band data Synergistic data is obtained, Base-Band Processing is carried out to synergistic data and exports the first user face data, wherein the first base band data and second Base band data is identical base band data type.Realize uplink CoMP processing.

It should be understood that the embodiment of the present invention carry out the processing of uplink multi-point cooperative radio-frequency unit can be two or two with On.For example, the first radio-frequency unit can receive the base band data sent by other processing modules forwarded from digital processing unit, Merge the base band data of the same type of the first radio-frequency unit, then Base-Band Processing is carried out by the first radio-frequency unit and exports the first base band number According to.

Optionally, as another embodiment, radio-frequency unit 500 can also include the second receiving unit 504, and second receives Unit 504 is used to receive second user face data from digital processing unit；Processing unit 501 can be specifically used for receiving to second The received second user face data of unit 504 exports the first base band data, subsequent second radio-frequency unit pair after carrying out Base-Band Processing First base band data continues Base-Band Processing.Realize downlink CoMP processing.

It should be understood that the embodiment of the present invention is not construed as limiting the number of radio-frequency unit, it can be two or more, more Under sector site scene, the corresponding radio-frequency unit of each sector site.It should also be understood that carrying out penetrating for downlink multi-point cooperative processing Frequency device can be two or more.For example, the first radio-frequency unit can receive by the other of digital processing unit forwarding The base band data of radio-frequency unit, the first radio-frequency unit export the first base band data and are transmitted to the second radio frequency dress through digital processing unit It sets.Specific example can be with reference to above-mentioned, and details are not described herein again.

Fig. 6 is the schematic block diagram of the digital processing unit of one embodiment of the invention.The digital processing unit 600 of Fig. 6 It is an example of digital processing unit in above-mentioned base station system, digital processing unit 600 includes receiving unit 601 and sends single Member 602.

Receiving unit 601 is for receiving the first base band data that the first radio-frequency unit is exported and sent.

Transmission unit 602 be used for by received first base band data of receiving unit 601 be sent to the second radio frequency penetrate it is standby, so as to Second radio-frequency unit realizes that the CoMP in base station is handled according to the first base band data.

The first base band number that data processing module of the embodiment of the present invention exports the first radio-frequency unit is transmitted to the second radio frequency Device come realize the CoMP in base station handle.Based on above scheme, base band is carried out by digital processing unit between radio-frequency unit The exchange of data, multi-point cooperative is handled between realizing sector, to effectively improve gain.

Digital processing unit 600 can be realized the function that digital processing unit is related in above-mentioned base station system, to avoid going to live in the household of one's in-laws on getting married It states, omits the description similar with above-mentioned base station system for appropriate.

Digital processing unit can be used to implement the OM processing of base station system, for example, inside of base station data are configured, The operations such as update, load or maintenance.Therefore, multiple radio-frequency units can share a digital processing unit and be transmitted, be operated Safeguard with the functions such as synchronous, a corresponding digital processing unit is configured without each radio-frequency unit, to reduce system Cost.

Optionally, as one embodiment, receiving unit 601 can be also used for receiving the second radio-frequency unit is sent first User face data, the first user face data is the second radio-frequency unit from user equipment the first data of reception, defeated according to the first data Second base band data out, merges the second base band data and the first base band data obtains synergistic data, carries out base band to synergistic data Processing output, wherein the first base band data and the second base band data are identical base band data type.Realize uplink CoMP Processing.Further, transmission unit 602 can be also used for the first user plane data transfer to core net through transport protocol.

Optionally, as another embodiment, transmission unit 602 can be also used for for second user face data being sent to One radio-frequency unit exports the first base band data after carrying out Base-Band Processing to second user face data so as to the first radio-frequency unit.Afterwards Continuous second radio-frequency unit continues Base-Band Processing to the first base band data and exports the second data.Realize uplink CoMP processing.

Specific embodiment can be with reference to above-mentioned, and details are not described herein again.

Optionally, as another embodiment, digital processing unit 600 can also include synchronization unit 603, synchronization unit 603 for carrying out time synchronization with the first radio-frequency unit and the second radio-frequency unit respectively.It is possible to further for passing through synchronization Ether net mode carries out time synchronization.

Optionally, as another embodiment, digital processing unit 600 can also include collaboration unit 604, cooperate with unit 604 for realizing the cooperative scheduling between sector or the cooperative scheduling between base station.The realization of coordinated scheduling function, for example, collaboration is single Member 604 can be used for collecting the information of each sector, is uniformly scheduled processing, then issues traffic order and fill to each radio frequency It sets, specifically, traffic order can indicate that radio-frequency unit carries out CoMP processing.Baseband interface can also be externally provided, through exchanging Module realizes the interaction with the base band data of other base stations, i.e. cooperative transmission between realization base station.

Fig. 7 is the schematic diagram of the radio-frequency unit of another embodiment of the present invention.On the radio-frequency unit 700 of Fig. 7 is An example of the second radio-frequency unit in base station system is stated, which includes processor 701, memory 702 and transmitting-receiving Device 703.Processor 701 controls the operation of equipment 700, and processor 701 can also be known as CPU (Central Processing Unit, central processing unit).Memory 702 may include read-only memory and random access memory, and to processor 701 Instruction and data is provided.The a part of of memory 702 can also include non-volatile row random access memory (NVRAM).Processing Device 701, memory 702 and transceiver 703 are coupled by bus system 710, and it includes data that wherein bus system 710, which is removed, It further include power bus, control bus and status signal bus in addition except bus.It, will in figure but for the sake of clear explanation Various buses are all designated as bus system 710.

Wherein, processor 701 may be a kind of IC chip, the processing capacity with signal.During realization, Each step of the above method can be complete by the integrated logic circuit of the hardware in processor 701 or the instruction of software form At.Above-mentioned processor 701 can be general processor, including CPU, NP etc.；Can also be DSP, ASIC, FPGA or other Programmable logic device, discrete gate or transistor logic, discrete hardware components.It may be implemented or execute and is of the invention real Apply disclosed each method, step and the logic diagram in example.General processor can be microprocessor or the processor can also To be any conventional processor etc..

In this embodiment, transceiver 703 is used to receive the first base band data of digital processing unit transmission, wherein first Base band data is exported by the first radio-frequency unit.Processor 701 is used for real according to received first base band data of transceiver 703 CoMP processing in existing base station.Wherein the type of the first base band data may include time domain I/Q data, frequency domain I/Q data, hard bit Data or L2 data.

The radio-frequency unit 700 can be realized the function that the second radio-frequency unit is related in above-mentioned base station system, to avoid repeating, It is not described in detail herein.

Optionally, as one embodiment, transceiver 703 can be also used for receiving the first data from user equipment, according to First data export the second base band data.Processor 701 can be specifically used for merging the second base band data and the first base band data Synergistic data is obtained, Base-Band Processing is carried out to synergistic data and exports the first user face data, wherein the first base band data and second Base band data is identical base band data type.Realize uplink CoMP processing.

Optionally, processor 701 can be specifically used for successively carrying out synergistic data base band L1-Low processing, L1-High Processing, the processing of layer 2 and processing the first user face data of output of layer 3.Or processor 701 can be specifically used for synergistic data Successively carry out base band L1-High processing, the processing of layer 2 and processing the first user face data of output of layer 3.Alternatively, processor 701 can To be specifically used for successively carrying out synergistic data the processing of baseband layer 2 and processing the first user face data of output of layer 3.Alternatively, processing Device 701 can be specifically used for carrying out synergistic data processing the first user face data of output of baseband layer 3.Specific example can join It is admitted to and states, details are not described herein again.

Further, the first user face data that transceiver 703 can be also used for export is sent to digital processing unit, So that digital processing unit passes through transport protocol for the first user plane data transfer to core net.

Optionally, as another embodiment, processor 701 can be specifically used for continuing base to the first base band data Tape handling simultaneously carries out radio frequency processing the second data of output or carries out radio frequency processing the second data of output to the first base band data.It receives Hair device 703 can be also used for the second data being sent to user equipment.Wherein, the first base band data be the first radio-frequency unit according to It is exported after carrying out Base-Band Processing from the received second user face data of digital processing unit.Realize downlink CoMP processing.

Fig. 8 is the schematic diagram of the radio-frequency unit of another embodiment of the present invention.On the radio-frequency unit 800 of Fig. 8 is An example of the first radio-frequency unit in base station system is stated, which includes processor 801, memory 802 and transmitting-receiving Device 803.Processor 801 controls the operation of equipment 800, and processor 801 can also be known as CPU.Memory 802 may include read-only Memory and random access memory, and instruction and data is provided to processor 801.The a part of of memory 802 can also wrap Include non-volatile row random access memory (NVRAM).Processor 801, memory 802 and transceiver 803 pass through bus system 810 It is coupled, wherein bus system 810 further includes power bus, control bus and state letter in addition to including data/address bus Number bus.But for the sake of clear explanation, various buses are all designated as bus system 810 in figure.

Wherein, processor 801 may be a kind of IC chip, the processing capacity with signal.During realization, Each step of the above method can be complete by the integrated logic circuit of the hardware in processor 801 or the instruction of software form At.Above-mentioned processor 801 can be general processor, including CPU, NP etc.；Can also be DSP, ASIC, FPGA or other Programmable logic device, discrete gate or transistor logic, discrete hardware components.It may be implemented or execute and is of the invention real Apply disclosed each method, step and the logic diagram in example.General processor can be microprocessor or the processor can also To be any conventional processor etc..

In this embodiment, processor 801 is for exporting the first base band data.Transceiver 803 is used for processor 801 is defeated The first base band data out is sent to digital processing unit, penetrates so that the first base band data is sent to second by digital processing unit Frequency device, the second radio-frequency unit realize that the CoMP in base station is handled according to the first base band data.The type of first base band data can To include time domain I/Q data, frequency domain I/Q data, hard bit data or L2 data.

The radio-frequency unit 800 can be realized the function that the first radio-frequency unit is related in above-mentioned base station system, to avoid repeating, It is not described in detail herein.

Optionally, as one embodiment, transceiver 803 can be also used for receiving the first data, processing from user equipment Device 801 can be specifically used for: export the first base band data according to received first data of transceiver 803.Subsequent second radio frequency dress The second base band data and first base band data acquisition synergistic data can be merged by setting, and carry out Base-Band Processing output to synergistic data First user face data, wherein the first base band data and the second base band data are identical base band data type.Realize uplink CoMP processing.

Optionally, as another embodiment, transceiver 803 can be also used for receiving second user from digital processing unit Face data；Processor 801 can be specifically used for exporting after carrying out Base-Band Processing to the received second user face data of transceiver 803 First base band data, subsequent second radio-frequency unit continue Base-Band Processing to the first base band data.Realize downlink CoMP processing.

Fig. 9 is the schematic diagram of the digital processing unit of another embodiment of the present invention.The digital processing unit of Fig. 9 900 be an example of digital processing unit in above-mentioned base station system, which includes processor 901, storage Device 902 and transceiver 903.Processor 901 controls the operation of equipment 900, and processor 901 can also be known as CPU.Memory 902 It may include read-only memory and random access memory, and provide instruction and data to processor 901.The one of memory 902 Part can also include non-volatile row random access memory (NVRAM).Processor 901, memory 902 and transceiver 903 are logical It crosses bus system 910 to be coupled, wherein bus system 910 further includes power bus, control in addition to including data/address bus Bus and status signal bus in addition.But for the sake of clear explanation, various buses are all designated as bus system 910 in figure.

Wherein, processor 901 may be a kind of IC chip, the processing capacity with signal.During realization, Each step of the above method can be complete by the integrated logic circuit of the hardware in processor 901 or the instruction of software form At.Above-mentioned processor 901 can be general processor, including CPU, NP etc.；Can also be DSP, ASIC, FPGA or other Programmable logic device, discrete gate or transistor logic, discrete hardware components.It may be implemented or execute and is of the invention real Apply disclosed each method, step and the logic diagram in example.General processor can be microprocessor or the processor can also To be any conventional processor etc..

In this embodiment, transceiver 903 is for receiving the first base band data that the first radio-frequency unit is exported and sent.Also For according to transceiver 903 by received first base band data be sent to the second radio frequency penetrate it is standby, so as to the second radio-frequency unit according to First base band data realizes the CoMP processing in base station.Wherein the type of the first base band data may include time domain I/Q data, frequency Domain I/Q data, hard bit data or L2 data.

Digital processing unit 900 can be realized the function that digital processing unit is related in above-mentioned base station system, to avoid going to live in the household of one's in-laws on getting married It states, is not described in detail herein.

Processor 901 can be used to implement the OM processing of base station system, for example, being configured to inside of base station data, more Newly, the operation such as load or maintenance.Therefore, multiple radio-frequency units can share a digital processing unit and be transmitted, operate dimension Protect with the functions such as synchronous, configure a corresponding digital processing unit without each radio-frequency unit, thus reduce system at This.

Optionally, as one embodiment, transceiver 903 can be also used for receiving the first use that the second radio-frequency unit is sent Family face data, the first user face data are the second radio-frequency units from user equipment the first data of reception, are exported according to the first data Second base band data, merges the second base band data and the first base band data obtains synergistic data, carries out at base band to synergistic data Reason output, wherein the first base band data and the second base band data are identical base band data type.Realize at uplink CoMP Reason.Further, transceiver 903 can be also used for the first user plane data transfer to core net through transport protocol.

Optionally, as another embodiment, transceiver 903 can be also used for second user face data being sent to first Radio-frequency unit exports the first base band data after carrying out Base-Band Processing to second user face data so as to the first radio-frequency unit.It is subsequent Second radio-frequency unit continues Base-Band Processing to the first base band data and exports the second data.Realize uplink CoMP processing.

Optionally, as another embodiment, processor 901 can be used for respectively with the first radio-frequency unit and the second radio frequency Device carries out time synchronization.It is possible to further for carrying out time synchronization by synchronous ethernet mode.

Optionally, as another embodiment, processor 901 can be used for the cooperative scheduling between sector or the association between base station With scheduling.Baseband interface can also be externally provided, the interaction through Switching Module realization and the base band data of other base stations is realized Cooperative transmission between base station.

Figure 10 is the schematic flow chart of the multi-point cooperative processing method of one embodiment of the invention.This method can be by upper State base station system execution.

1001, the first radio-frequency unit exports the first base band data, and the first base band data is sent to digital processing unit.

1002, digital processing unit receives the first base band data that the first radio-frequency unit is sent, and the first base band data is sent out The second radio-frequency unit is given, the first radio-frequency unit and the second radio-frequency unit respectively correspond two sectors station in the same base station Point.

1003, the second radio-frequency unit receives the first base band data that digital processing unit is sent, according to the first base band data Realize the CoMP processing in base station.

It should be pointed out that the radio-frequency unit of the embodiment of the present invention be referred to as intensified radio-frequency unit (eRU) can Realize radio frequency processing (such as middle radio frequency processing) function and base band L1/L2/L3 (1/ layer 2/ layer 3 of layer) processing function.Digital processing dress Set and be referred to as simplified digital processing element sDU) for realizing the base band data exchange between radio-frequency unit, it can also be real The functions such as existing base band cooperative scheduling function, master control transmission or clock processing.Radio-frequency receiving-transmitting and Base-Band Processing function in radio-frequency unit Energy can be by Single-Chip Integration on a physical entity, in such manner, it is possible to reduce system cost.It should be understood that the present invention is implemented Example does not limit this, can also be not integrated on a physical entity.It can between digital processing unit and each radio-frequency unit To be connected by ETH interface.It, can also be in addition, the radio-frequency unit of the embodiment of the present invention can all be high-power RF device All it is small-power radio-frequency unit, high-power RF device can be used with portion radio frequency device, portion radio frequency device uses small function Rate radio-frequency unit.

The first base band data that digital processing unit of the embodiment of the present invention exports the first radio-frequency unit is sent to second and penetrates Frequency device, wherein the type of the first base band data includes time domain inphase quadrature I/Q data, frequency domain I/Q data, hard bit data or L2 Data, the second radio-frequency unit realize that the CoMP in base station is handled according to the first base band data.Based on above scheme, radio-frequency unit it Between by digital processing unit carry out base band data exchange, realize sector between multi-point cooperative handle, to effectively improve increasing Benefit.

The method of Figure 10 can be realized by the base station system in Fig. 1, to avoid repeating, be not described in detail herein.

Optionally, as one embodiment, in step 1001, the first radio-frequency unit can receive first from user equipment Data export first base band data according to a data.In step 1003, the second radio-frequency unit can connect from user equipment The first data are received, export the second base band data according to the first data, merges the second base band data and the first base band data is assisted Same data carry out Base-Band Processing to synergistic data and export the first user face data, wherein the first base band data and the second base band number According to for identical base band data type.Realize uplink CoMP processing.

Specifically, the second radio-frequency unit can successively carry out base band L1-Low processing, at L1-High to synergistic data Reason, L2 processing and L3 processing the first user face data of output.Alternatively, the second radio-frequency unit can successively carry out synergistic data Base band L1-High processing, L2 processing and L3 processing the first user face data of output.It is merged into the first base band of synergistic data Data and the base band data type of the second base band data are frequency domain I/Q data.Alternatively, the second radio-frequency unit can be to synergistic data Successively carry out base band L2 processing and L3 processing output the first user face data, that is, be merged into synergistic data the first base band data and The base band data type of second base band data is hard bit data.Alternatively, the second radio-frequency unit can carry out base to synergistic data Band L3 processing the first user face data of output, that is, be merged into the first base band data of synergistic data and the base band of the second base band data Data type is L2 data.

Further, the first user face data of output is sent to digital processing unit by the second radio-frequency unit, at number Reason device can also receive the first user face data of the second radio-frequency unit transmission, by transport protocol by the first user face data It is sent to core net.

Optionally, as another embodiment, second user face data can also be sent to first by digital processing unit Radio-frequency unit.First radio-frequency unit can also receive second user face data from digital processing unit, in step 1001, to the Two user face datas export the first base band data after carrying out Base-Band Processing.In step 1003, the second radio-frequency unit can be to One base band data continues Base-Band Processing and carries out radio frequency processing the second data of output or penetrate to the first base band data Second data are sent to user equipment by frequency processing the second data of output.Realize downlink CoMP processing.

Optionally, as another embodiment, digital processing unit can also be penetrated with the first radio-frequency unit and second respectively Frequency device carries out time synchronization, it is possible to further for carrying out time synchronization by synchronous ethernet mode.

Optionally, as another embodiment, digital processing unit can also realize cooperative scheduling or base station between sector Between cooperative scheduling.Baseband interface can also be externally provided, realize the interaction with the base band data of other base stations through Switching Module, Realize the cooperative transmission between base station.

Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed The scope of the present invention.

It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description, The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.

In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the unit It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components It can be combined or can be integrated into another system, or some features can be ignored or not executed.Another point, it is shown or The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit It closes or communicates to connect, can be electrical property, mechanical or other forms.

The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme 's.

It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit It is that each unit physically exists alone, can also be integrated in one unit with two or more units.

It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention. And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.

The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. a kind of base station system, which is characterized in that including the first radio-frequency unit, the second radio-frequency unit and digital processing unit, institute It states the first radio-frequency unit and the second radio-frequency unit respectively corresponds two sector sites in the same base station,

First base band data is sent at the number by first radio-frequency unit for exporting the first base band data Device is managed, the type of first base band data includes time domain inphase quadrature I/Q data, frequency domain I/Q data, hard bit data or L2 Data；

The digital processing unit, first base band data sent for receiving first radio-frequency unit, by described the One base band data is sent to second radio-frequency unit；

Second radio-frequency unit, first base band data sent for receiving the digital processing unit, according to described First base band data realizes the multi-point cooperative CoMP processing in base station；

Wherein, first radio-frequency unit is further used for receiving the first data from user equipment, defeated according to first data First base band data out；

Second radio-frequency unit is further used for receiving the first data from the user equipment, defeated according to first data Second base band data out, merges second base band data and first base band data obtains synergistic data, to the collaboration Data carry out Base-Band Processing and export the first user face data, wherein first base band data and second base band data are phase Same base band data type.

2. the system as claimed in claim 1, which is characterized in that

Second radio-frequency unit, specifically for the synergistic data is successively carried out the low L1-Low of baseband layer 1 processing, layer 1 it is high L1-High processing, the processing of layer 2 and the processing of layer 3 export first user face data；Or

Second radio-frequency unit, specifically for successively carrying out to the synergistic data, baseband layer 1 is L1-High high to be handled, at layer 2 Reason and the processing of layer 3 export first user face data；Or

Second radio-frequency unit, specifically for successively carrying out the processing of baseband layer 2 and the processing output of layer 3 institute to the synergistic data State the first user face data；Or

Second radio-frequency unit is specifically used for carrying out the synergistic data in the processing output of baseband layer 3 first user face Data.

3. system as claimed in claim 1 or 2, which is characterized in that

Second radio-frequency unit is also used to first user face data of output being sent to the digital processing unit；

The digital processing unit is also used to receive first user face data that second radio-frequency unit is sent, passes through Transport protocol is by first user plane data transfer to core net.

4. the system as claimed in claim 1, which is characterized in that

The digital processing unit is also used to for second user face data to be sent to first radio-frequency unit；

First radio-frequency unit is further used for receiving the second user face data from the digital processing unit, to institute It states after second user face data carries out Base-Band Processing and exports first base band data；

Second radio-frequency unit is further used for continuing Base-Band Processing to first base band data and carry out at radio frequency Reason the second data of output carry out radio frequency processing the second data of output to first base band data, and second data are sent out Give user equipment.

5. system as claimed in claim 1 or 2, which is characterized in that

The digital processing unit is also used to carry out the time with first radio-frequency unit and second radio-frequency unit respectively same Step.

6. system as claimed in claim 1 or 2, which is characterized in that

The digital processing unit, the cooperative scheduling between the cooperative scheduling for being also used to realize between sector or base station.

7. a kind of radio-frequency unit characterized by comprising

Receiving unit, for receive digital processing unit transmission the first base band data, wherein first base band data be by The output of first radio-frequency unit, the type of first base band data includes time domain inphase quadrature I/Q data, frequency domain I/Q data, hard Bit data or L2 data；

Processing unit, for realizing the multi-point cooperative in base station according to received first base band data of the receiving unit CoMP processing；

Wherein, the receiving unit, is also used to receive the first data from user equipment, exports the second base according to first data Band data；

The processing unit is specifically used for: merges second base band data and first base band data obtains synergistic data, Base-Band Processing is carried out to the synergistic data and exports the first user face data, wherein first base band data and second base Band data are identical base band data type.

8. radio-frequency unit as claimed in claim 7, which is characterized in that

The processing unit is specifically used for: the synergistic data is successively carried out the low L1-Low of baseband layer 1 processing, layer 1 it is L1- high High processing, the processing of layer 2 and the processing of layer 3 export first user face data；Or

The processing unit is specifically used for: the synergistic data is successively carried out baseband layer 1 it is L1-High high processing, layer 2 processing with And the processing of layer 3 exports first user face data；Or

The processing unit is specifically used for: the processing of baseband layer 2 and the processing of layer 3 output described the are successively carried out to the synergistic data One user face data；Or

The processing unit is specifically used for: carrying out the processing of baseband layer 3 to the synergistic data and exports first user face data.

9. radio-frequency unit as claimed in claim 7 or 8, which is characterized in that the radio-frequency unit further includes the first transmission unit,

First transmission unit, for first user face data of output to be sent to the digital processing unit, with Toilet states digital processing unit by transport protocol for first user plane data transfer to core net.

10. radio-frequency unit as claimed in claim 7, which is characterized in that the radio-frequency unit further includes the second sending module,

The processing unit is specifically used for: continuing Base-Band Processing to first base band data and carries out radio frequency processing output Second data carry out radio frequency processing the second data of output to first base band data；

Second sending module, for second data to be sent to user equipment；

Wherein, first base band data is that first radio-frequency unit is used according to from the digital processing unit received second It is exported after family face data progress Base-Band Processing.

11. a kind of radio-frequency unit characterized by comprising

Processing unit, for exporting the first base band data, the type of first base band data includes time domain inphase quadrature IQ number According to, frequency domain I/Q data, hard bit data or L2 data；

Transmission unit, first base band data for exporting the processing unit are sent to digital processing unit, so as to First base band data is sent to the second radio-frequency unit by the digital processing unit, and second radio-frequency unit is according to First base band data realizes the multi-point cooperative CoMP processing in base station；

Wherein, the radio-frequency unit further includes the first receiving unit, first receiving unit, for receiving the from user equipment One data；

The processing unit is specifically used for: exporting the first base band number according to received first data of the receiving unit According to.

12. radio-frequency unit as claimed in claim 11, which is characterized in that the radio-frequency unit further includes the second receiving unit,

Second receiving unit, for receiving second user face data from the digital processing unit；

The processing unit is specifically used for: the second user face data received to second receiving unit carries out at base band First base band data is exported after reason.

13. a kind of digital processing unit characterized by comprising

Receiving unit, the first base band data for exporting and sending for receiving the first radio-frequency unit, first base band data Type includes time domain inphase quadrature I/Q data, frequency domain I/Q data, hard bit data or L2 data；

Transmission unit, for by received first base band data of the receiving unit be sent to the second radio frequency penetrate it is standby, so as to Second radio-frequency unit realizes that the multi-point cooperative CoMP in base station is handled according to first base band data.

14. digital processing unit as claimed in claim 13, which is characterized in that

The receiving unit is also used to receive the first user face data that second radio-frequency unit is sent, first user Face data is second radio-frequency unit from user equipment the first data of reception, exports the second base band number according to first data According to merging second base band data and first base band data obtain synergistic data, carry out base band to the synergistic data Processing output, wherein first base band data and second base band data are identical base band data type；

The transmission unit is also used to first user plane data transfer to core net through transport protocol.

15. digital processing unit as claimed in claim 13, which is characterized in that

The transmission unit is also used to for second user face data to be sent to first radio-frequency unit, penetrates so as to described first Frequency device exports first base band data after carrying out Base-Band Processing to the second user face data.

16. such as the described in any item digital processing units of claim 13-15, which is characterized in that the digital processing unit is also Including synchronization unit,

The synchronization unit, for carrying out time synchronization with first radio-frequency unit and second radio-frequency unit respectively.

17. such as the described in any item digital processing units of claim 13-15, which is characterized in that the digital processing unit is also Including cooperateing with unit,

The collaboration unit, for realizing the cooperative scheduling between sector or the cooperative scheduling between base station.

18. a kind of multi-point cooperative processing method characterized by comprising

First radio-frequency unit exports the first base band data, and first base band data is sent to digital processing unit, and described the The type of one base band data includes time domain inphase quadrature I/Q data, frequency domain I/Q data, hard bit data or L2 data；

The digital processing unit receives first base band data that first radio-frequency unit is sent, by first base band Data are sent to the second radio-frequency unit, and first radio-frequency unit and the second radio-frequency unit respectively correspond two in the same base station A sector site；

Second radio-frequency unit receives first base band data that the digital processing unit is sent, according to first base The multi-point cooperative CoMP processing in base station is realized with data；

Wherein, first radio-frequency unit exports the first base band data, comprising:

First radio-frequency unit receives the first data from user equipment, exports the first base band number according to first data According to；

Second radio-frequency unit realizes that the multi-point cooperative CoMP in base station is handled according to first base band data, comprising:

Second radio-frequency unit receives the first data from the user equipment, exports the second base band number according to first data According to merging second base band data and first base band data obtain synergistic data, carry out base band to the synergistic data Processing the first user face data of output, wherein first base band data and second base band data are identical base band data Type.

19. method as claimed in claim 18, which is characterized in that second radio-frequency unit carries out base to the synergistic data Tape handling exports the first user face data, comprising:

Second radio-frequency unit synergistic data is successively carried out the low L1-Low of baseband layer 1 processing, layer 1 it is L1-High high at Reason, the processing of layer 2 and the processing of layer 3 export first user face data；Or

Second radio-frequency unit successively carries out the L1-High high processing of baseband layer 1, the processing of layer 2 and layer 3 to the synergistic data Processing exports first user face data；Or

Second radio-frequency unit successively carries out the processing of baseband layer 2 to the synergistic data and the processing of layer 3 output described first is used Family face data；Or

Second radio-frequency unit carries out the processing of baseband layer 3 to the synergistic data and exports first user face data.

20. the method as described in claim 18 or 19, which is characterized in that the method also includes:

First user face data of output is sent to the digital processing unit by second radio-frequency unit；

The digital processing unit receives first user face data that second radio-frequency unit is sent, and passes through transport protocol By first user plane data transfer to core net.

21. method as claimed in claim 20, which is characterized in that the method also includes:

Second user face data is sent to first radio-frequency unit by the digital processing unit；

First radio-frequency unit exports the first base band data, comprising:

First radio-frequency unit receives the second user face data from the digital processing unit, to the second user face Data export first base band data after carrying out Base-Band Processing；

Second radio-frequency unit continues Base-Band Processing to first base band data and carries out radio frequency processing output second Data carry out radio frequency processing the second data of output to first base band data, and second data are sent to user and are set It is standby.

22. the method as described in claim 18 or 19, which is characterized in that the method also includes:

The digital processing unit carries out time synchronization with first radio-frequency unit and second radio-frequency unit respectively.

23. the method as described in claim 18 or 19, which is characterized in that the method also includes:

The digital processing unit realizes the cooperative scheduling between sector or the cooperative scheduling between base station.