CN105393592A

CN105393592A - Base station system and device and coordinated multiple point processing method

Info

Publication number: CN105393592A
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: 2016-03-09
Anticipated expiration: 2034-05-05
Also published as: CN105393592B; WO2015168839A1

Abstract

Provided are a base station system and device and a coordinated multiple point processing method. The system comprises: a first radio frequency device, a second radio frequency device and a digital processing device. The first radio frequency device is used for outputting first baseband data and sending the first baseband data to the digital processing device, wherein the types of the first baseband data comprise time domain IQ data, frequency domain IQ data, hard bit data or L2 data; the digital processing device is used for receiving the first baseband data sent by the first radio frequency device, and sending the first baseband data to the second radio frequency device; the second radio frequency device is used for receiving the first baseband data sent by the digital processing device, and realizing coordinated multiple point (CoMP) processing in a base station according to the first baseband data. Based on the above-mentioned solution, baseband data exchange between the radio frequency devices is performed via the digital processing device, which realizes coordinated multiple point processing between sectors and thus effectively improves the gain.

Description

Base station system and device and coordinated multiple point processing method

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

The present embodiments relate to communication technical field, and more particularly, to base station system, equipment and multi-point cooperative processing method.Background technology

Base station is the visual plant in wireless access network, creates and is connected with user equipment, and for transmitting wireless signal, base station mainly includes RU (Radio Unit, radio frequency unit）With BBU (Base Band Unite, baseband processing unit；), wherein RU is used for uplink receiving and downlink, can 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 synchronous.

In centralized base station (All in one) framework, RXU and BBU are integrated, and externally provide S1 and X2 interface.For many 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 handled, therefore, it is impossible to the multi-point cooperative between realizing sector（Coordinated multiple point, CoMP) processing.The content of the invention

The embodiment of the present invention provides a kind of base station system, equipment and multi-point cooperative processing method, can realize that multi-point cooperative is handled, improve gain.

First aspect includes there is provided a kind of base station system, the system：First radio-frequency unit, the second radio-frequency unit and digital processing unit, first radio-frequency unit and the second radio-frequency unit correspond to two sector sites in same base station respectively, 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 inphase quadrature I/Q data, frequency domain I/Q data, hard bit data or L2 data；The digital processing unit, for receiving first base band data that first radio-frequency unit is sent, second radio-frequency unit is sent to by first base band data；Second radio-frequency unit, for receiving first base band data that the digital processing unit is sent, the multi-point cooperative CoMP processing in base station is realized according to first base band data.

With reference in a first aspect, in another implementation of first aspect, first radio-frequency unit is further used for receiving the first data, the first base band according to first data output from user equipment Data；Second radio-frequency unit, it is further used for receiving the first data from the user equipment, according to the base band data of the first data output second, merge 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.

With reference to any of first aspect and its above-mentioned implementation implementation, in another implementation of first aspect, second radio-frequency unit, specifically for carrying out the low Ll-Low processing of baseband layer 1, the high Ll-High processing of layer 1 successively to the synergistic data, layer 2 is handled and the processing of layer 3 exports first user face data；Or second radio-frequency unit, handled and the processing output of layer 3 first user face data specifically for carrying out the high Ll-High processing of baseband layer 1, layer 2 successively to the synergistic data；Or second radio-frequency unit, handled and the processing output of layer 3 first user face data specifically for carrying out baseband layer 2 successively to the synergistic data；Or second radio-frequency unit, specifically for carrying out the processing output of baseband layer 3 first user face data to the synergistic data.

With reference to any of first aspect and its above-mentioned implementation implementation, in another implementation of first aspect, second radio-frequency unit is additionally operable to first user face data of output being sent to the digital processing unit；The digital processing unit, is additionally operable to receive first user face data that second radio-frequency unit is sent, by host-host protocol by first user plane data transfer to core net.

With reference to any of first aspect and its above-mentioned implementation implementation, in another implementation of first aspect, the digital processing unit is additionally operable to second user face data being sent to first radio-frequency unit；First radio-frequency unit, is further used for receiving second user face data from the digital processing unit, first base band data is exported after carrying out Base-Band Processing to second user face data；Second radio-frequency unit, it is further used for proceeding Base-Band Processing to first base band data and carries out radio frequency processing the second data of output or radio frequency processing the second data of output are carried out to first base band data, second data is sent to user equipment.

With reference to any of first aspect and its above-mentioned implementation implementation, in another implementation of first aspect, the digital processing unit is additionally operable to carry out time synchronized with first radio-frequency unit and second radio-frequency unit respectively.

With reference to any of first aspect and its above-mentioned implementation implementation, in another implementation of first aspect, the digital processing unit is additionally operable to realize the cooperative scheduling between sector or the cooperative scheduling between base station.

Second aspect includes there is provided a kind of radio-frequency unit, the radio-frequency unit：Receiving unit, for connecing Receive the first base band data that digital processing unit is sent, wherein described first base band data is exported by the first radio-frequency unit, and the type of first base band data includes time domain inphase quadrature I/Q data, frequency domain IQ data, hard bit data or L2 data；Processing unit, first base band data for being received according to the receiving unit realizes the multi-point cooperative CoMP processing in base station.

With reference to second aspect, in another implementation of second aspect, the receiving unit is additionally operable to receive the first data from the user equipment, according to the base band data of the first data output second；The processing unit specifically for：Merge second base band data and first base band data obtains synergistic data, carrying out Base-Band Processing to the synergistic data exports the first user face data, wherein first base band data and second base band data are identical base band data type.

With reference to any of second aspect and its above-mentioned implementation implementation, in another implementation of second aspect, the processing unit specifically for：Carry out the low Ll-Low processing of baseband layer 1, the high Ll-High processing of layer 1 successively to the synergistic data, layer 2 is handled and the processing of layer 3 exports first user face data；Or the processing unit specifically for：The high Ll-High processing of baseband layer 1, layer 2 is carried out successively to the synergistic data to handle and the processing output of layer 3 first user face data；Or the processing unit specifically for：Baseband layer 2 is carried out successively to the synergistic data to handle and the processing output of layer 3 first user face data；Or the processing unit specifically for：The processing output of baseband layer 3 first user face data is carried out to the synergistic data.

With reference to any of second aspect and its above-mentioned implementation implementation, in another implementation of second aspect, the radio-frequency unit also includes the first transmitting element, first transmitting element, for first user face data of output to be sent into the digital processing unit, so as to the digital processing unit by host-host protocol by first user plane data transfer to core net.

With reference to any of second aspect and its above-mentioned implementation implementation, in another implementation of second aspect, the radio-frequency unit also include the second sending module, the processing unit specifically for：Base-Band Processing is proceeded to first base band data and carries out radio frequency processing the second data of output or radio frequency processing the second data of output is carried out to first base band data；Second sending module, for second data to be sent into user equipment；Wherein, first base band data is exported after first radio-frequency unit carries out Base-Band Processing according to the second user face data received from the digital processing unit.

The third aspect is there is provided a kind of radio-frequency unit, processing unit, and for exporting the first base band data, 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；Transmitting element, for first base band data for exporting the processing unit Digital processing unit is sent to, so that first base band data is sent to second radio-frequency unit by the digital processing unit, second radio-frequency unit realizes the multi-point cooperative CoMP processing in base station according to first base band data.

With reference to the third aspect, in another implementation of the third aspect, the radio-frequency unit also includes the first receiving unit, first receiving unit, for receiving the first data from user equipment；The processing unit specifically for：First base band data described in first data output received according to the receiving unit.

With reference to any of the third aspect and its above-mentioned implementation implementation, in another implementation of the third aspect, the radio-frequency unit also includes the second receiving unit, second receiving unit, for receiving second user face data from the digital processing unit；The processing unit specifically for：First base band data is exported after carrying out Base-Band Processing to the second user face data that second receiving unit is received.

Fourth aspect, there is provided a kind of digital processing unit, the digital processing unit includes receiving unit, for receiving the first base band data that the first radio-frequency unit is exported and sent, 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；Transmitting element, first base band data for the receiving unit to be received is sent to the second radio frequency and penetrates standby, realizes the multi-point cooperative CoMP processing in base station according to first base band data so as to second radio-frequency unit.

With reference to fourth aspect, in another implementation of the 5th aspect, the receiving unit, it is additionally operable to receive the first user face data that second radio-frequency unit is sent, first user face data is that second radio-frequency unit receives the first data from user equipment, according to the base band data of the first data output second, merge second base band data and first base band data obtains synergistic data, Base-Band Processing output is carried out to the synergistic data, wherein described first base band data and second base band data are identical base band data type.The transmitting element, is additionally operable to first user plane data transfer to core net by host-host protocol.

With reference to any of fourth aspect and its above-mentioned implementation implementation, in another implementation of the 5th aspect, the transmitting element, it is additionally operable to second user face data being sent to first radio-frequency unit, first base band data is exported after carrying out Base-Band Processing to second user face data so as to first radio-frequency unit.

With reference to any of fourth aspect and its above-mentioned implementation implementation, in another implementation of the 5th aspect, the digital processing unit also includes synchronization unit, and the synchronization unit is used for Respectively time synchronized is carried out with first radio-frequency unit and second radio-frequency unit.

With reference to any of fourth aspect and its above-mentioned implementation implementation, in another implementation of the 5th aspect, the digital processing unit also includes collaboration unit, the collaboration unit, for realizing the cooperative scheduling between sector or the cooperative scheduling between base station.

5th aspect, there is provided a kind of multi-point cooperative processing method, this method includes the first radio-frequency unit and exports the first base band data, first base band data is sent to digital processing 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；The digital processing unit receives first base band data that first radio-frequency unit is sent, first base band data is sent to the second radio-frequency unit, first radio-frequency unit and the second radio-frequency unit correspond to two sector sites in same base station respectively；Second radio-frequency unit receives first base band data that the digital processing unit is sent, and the multi-point cooperative CoMP processing in base station is realized according to first base band data.

With reference to the 5th aspect, in another implementation of the 5th aspect, first radio-frequency unit exports the first base band data, including：First radio-frequency unit receives the first data, the first base band data according to first data output from user equipment；Second radio-frequency unit realizes the multi-point cooperative CoMP processing in base station according to first base band data, including：Second radio-frequency unit receives the first data from the user equipment, according to the base band data of the first data output second, merge 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.

With reference to any of the 5th aspect and its above-mentioned implementation implementation, in another implementation of the 5th aspect, second radio-frequency unit carries out Base-Band Processing to the synergistic data and exports the first user face data, including：Second radio-frequency unit carries out the low Ll-Low processing of baseband layer 1, the high Ll-High processing of layer 1 to the synergistic data successively, layer 2 is handled and the processing of layer 3 exports first user face data；Or second radio-frequency unit carries out the high Ll-High processing of baseband layer 1, layer 2 to the synergistic data and handled and the processing output of layer 3 first user face data successively；Or second radio-frequency unit carries out baseband layer 2 to the synergistic data and handled and the processing output of layer 3 first user face data successively；Or second radio-frequency unit carries out the processing output of baseband layer 3 first user face data to the synergistic data.

With reference to any of the 5th aspect and its above-mentioned implementation implementation, in another implementation of the 5th aspect, methods described also includes：Second radio-frequency unit is used described the first of output Family face data are sent to the digital processing unit；The digital processing unit receives first user face data that second radio-frequency unit is sent, by host-host protocol by first user plane data transfer to core net.

With reference to any of the 5th aspect and its above-mentioned implementation implementation, in another implementation of the 5th aspect, methods described also includes：Second user face data are sent to first radio-frequency unit by the digital processing unit；First radio-frequency unit exports the first base band data, including：First radio-frequency unit receives second user face data from the digital processing unit, and first base band data is exported after carrying out Base-Band Processing to second user face data；Second radio-frequency unit realizes the multi-point cooperative CoMP processing in base station according to first base band data, including：Second radio-frequency unit proceeds Base-Band Processing to first base band data and carries out radio frequency processing the second data of output or radio frequency processing the second data of output are carried out to first base band data, and second data are sent into user equipment.

With reference to any of the 5th aspect and its above-mentioned implementation implementation, in another implementation of the 5th aspect, methods described also includes：The digital processing unit carries out time synchronized with first radio-frequency unit and second radio-frequency unit respectively.

With reference to any of the 5th aspect and its above-mentioned implementation implementation, in another implementation of the 5th aspect, methods described 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, first radio-frequency unit and the second radio-frequency unit correspond to two sector sites in same base station respectively, the first base band data that first radio-frequency unit is exported is sent to the second radio-frequency unit by digital processing unit, 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, and the second radio-frequency unit realizes the CoMP processing in base station according to the first base band data.Based on such 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, so as to effectively improve gain.Brief description of the drawings

Technical scheme in order to illustrate the embodiments of the present invention more clearly, the required accompanying drawing used in embodiment or description of the prior art will be briefly described below, apparently, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying 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 indicative flowchart of the multi-point cooperative processing method of one embodiment of the invention.Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.

It should be understood that the technical scheme of the embodiment of the present invention can apply to various communication systems, 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, WCDMA）System, GPRS (General Packet Radio Service, GPRS）, LTE systems, LTE FDD (Frequency Division Duplex, FDD）System, LTE TDD (Time Division Duplex, time division duplex）, UMTS (Universal Mobile Telecommunications System, UMTS) etc..It should be understood that the present invention is not limited 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 network）Communicated with one or more core nets, for example, user equipment can be mobile phone（Or be " honeycomb " phone）, computer with mobile terminal etc., 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 part and another part, it may include it is wired and/ Conductor cable or semiconductor circuits etc.；Or including other forms, such as internal bus, circuit, backboard.Wireless mode is that by the connected mode of radio communication, including but not limited to radio frequency, infrared ray, bluetooth etc..Internal or external interface may be present between two parts, the interface 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.Fig. 1 base station system 100 includes digital processing unit 103, the first radio-frequency unit 101 and the second radio-frequency unit 102, and digital processing unit 103 is connected with the first radio-frequency unit 101 and the second radio-frequency unit 102 respectively.

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

Digital processing unit 103, for receiving the first base band data that the first radio-frequency unit 101 is sent, the second radio-frequency unit 102 is sent to by the first base band data.

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

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

It is pointed out that the radio-frequency unit of the embodiment of the present invention, which is 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 (2/ layer 3 of layer 1/ layer) processing function.Digital processing unit is referred to as simplified digital processing element（SDU) it is used to realize that the base band data between radio-frequency unit is exchanged, the functions such as base band cooperative scheduling function, master control transmission or clock processing can also be realized.Radio-frequency receiving-transmitting and Base-Band Processing function in radio-frequency unit can be by Single-Chip Integrations on a physical entity, in such manner, it is possible to reduce system cost.It should be understood that the embodiment of the present invention is not limited this, it can also be not integrated on a physical entity.In addition, the radio-frequency unit of the embodiment of the present invention can all be high-power RF device, it can also all be small-power radio-frequency unit, high-power RF device can be used with portion radio frequency device, portion radio frequency device uses small-power radio-frequency unit.

Interface between digital processing unit and radio frequency handling device is except that including above-mentioned base band data, can also include：User face data, clock data, chain of command data（Including management and signaling etc.）Or scheduling data etc..

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, first radio-frequency unit and the second radio-frequency unit correspond to two sector sites in same base station respectively, and the first base band data that the first radio-frequency unit is exported is sent to the second radio frequency and filled by digital processing unit Put, 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 realizes the CoMP processing in base station according to the first base band data.Based on such 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, so as to effectively improve gain.

As an alternative embodiment of the invention, base station system 100 can also further expand its function.Exemplary, the first radio-frequency unit 101 can be further used for receiving the first data from user equipment, according to first the first base band data of data output.Second radio-frequency unit 102 can be further used for receiving the first data from user equipment, according to first the second base band data of data output, merge the second base band data and the first base band data obtains synergistic data, Base-Band Processing is carried out to synergistic data and exports the first user face data, wherein the first base band data and the second base band data are identical base band data type.Realize up CoMP processing.

It should be understood that the embodiment of the present invention is not construed as limiting to the number of radio-frequency unit, and can be two or more, under many sector site scenes, one radio-frequency unit of each sector site correspondence.It should also be understood that the radio-frequency unit for carrying out up multi-point cooperative processing can be two or more.For example, second radio-frequency unit can receive 1 the first base band data that other 1 the first radio-frequency unit are sent, the second base band data that 1 the first base band data and second radio-frequency unit are exported is merged, multiple base band datas corresponding with the plurality of radio-frequency unit difference that other any number of radio-frequency units are sent can also be received, the second base band data and the plurality of base band data are merged.In addition, first base band data of the first radio-frequency unit output can also be the data after multi-point cooperative processing, or second radio-frequency unit by synergistic data carry out Base-Band Processing after, other radio-frequency units in addition to the first radio-frequency unit are sent to through digital processing unit, multi-point cooperative processing is proceeded by other radio-frequency units.The embodiment of the present invention is not limited this.

Understand for convenience, the embodiment of the present invention is illustrated exemplified by being handled by the multi-point cooperative of two radio-frequency units.

It is described in detail with reference to Fig. 2 schematic architecture.Corresponding first radio-frequency unit in sector 1 can realize partial data interface, i.e., data are only carried out with radio frequency processing or part Base-Band Processing is carried out.

Specifically, the second radio-frequency unit can specifically for synergistic data is carried out successively baseband layer 1 low (Ll-Low) processing, layer 1 it is high（Ll-High) processing, layer 2 (L2) processing and layer 3 (L3) processing the first user face data of output.For example, corresponding second radio-frequency unit of corresponding first radio-frequency unit in the first data sector 1 and sector 2 that user equipment is sent can be received, first radio-frequency unit 201 can be used for carrying out radio frequency processing to the first data received from user equipment and export the first base band data, as time domain I/Q data, is sent to the second radio frequency by the first base band data by digital processing unit 203 and fills Put 202.Second radio-frequency unit 202 can be used for carrying out radio frequency processing to the first data received from user equipment and export the second base band data, also receive the first base band data that digital processing unit 203 is sent, merge and follow-up base band L1 (including Ll-Low and Ll-High), L2 and L3 processing are carried out after the first base band data and the second base band data, the first user face data is exported, is transmitted by digital processing unit 203 to core net.

Or, the second radio-frequency unit can be handled and processing the first user face data of output of layer 3 specifically for carrying out the high Ll-High processing of baseband layer 1, layer 2 successively to synergistic data.The base band data type of the first base band data and the second base band data that are merged into synergistic data is frequency domain I/Q data.For example, corresponding second radio-frequency unit of corresponding first radio-frequency unit in the first data sector 1 and sector 2 that user equipment is sent can be received, first radio-frequency unit 201 can be used for carrying out the first data received from user equipment radio frequency and Ll-Low is handled and exported the first base band data, as frequency domain I/Q data, the second radio-frequency unit 202 is sent to by digital processing unit 203 by the first base band data.Second radio-frequency unit 202 can be used for carrying out the first data received from user equipment radio frequency and Ll-Low is handled and exported the second base band data, also receive the first base band data that digital processing unit 203 is sent, merge and follow-up base band Ll-High, L2 and L3 processing the first user face data of output is carried out after the first base band data and the second base band data, transmitted by digital processing unit 203 to core net.

Or, second radio-frequency unit can be handled and processing the first user face data of output of layer 3 specifically for carrying out baseband layer 2 successively to synergistic 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 is hard bit data.Similar example may be referred to above-mentioned, and here is omitted.

Or, the second radio-frequency unit can be specifically for carrying out processing the first user face data of output of baseband layer 3 to synergistic 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 is L2 data.Similar example may be referred to above-mentioned, and here is omitted.

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

Exemplary, 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, and the first base band data is exported after carrying out Base-Band Processing to second user face data.Second radio-frequency unit 102 can be further used for proceeding the first base band data Base-Band Processing and carry out radio frequency processing the second data of output or radio frequency processing the second data of output be carried out to the first base band data, and the second data are sent into user equipment.Realize descending CoMP processing. It should be understood that the embodiment of the present invention is not construed as limiting to the number of radio-frequency unit, and can be two or more, under many sector site scenes, one radio-frequency unit of each sector site correspondence.It should also be understood that the radio-frequency unit for carrying out descending multi-point cooperative processing can be two or more.For example, the first radio-frequency unit can receive the base band data of the other radio-frequency units forwarded by digital processing unit, the first radio-frequency unit exports the first base band data and is transmitted to the second radio-frequency unit through digital processing unit.Or second radio-frequency unit the first base band data of reception is exported into the second base band data after Base-Band Processing, other radio-frequency units are transmitted to by digital processing unit.

Specifically, the second radio-frequency unit can specifically for reception by the first radio-frequency unit carry out L3 processing the first base band data carry out successively baseband layer 2 handle, the high Ll-High processing of layer 1, the low Ll-Low processing of layer 1 and radio frequency processing output the second data.That is the base band data type of the first base band data is L2 data.

Or, the second radio-frequency unit can carry out base band Ll-High processing, Ll-Low processing and radio frequency processing successively specifically for the first base band data for having carried out L3 and L2 processing by the first radio-frequency unit to reception and export the second data.The base band data type of the first base band data and the second base band data that are merged into synergistic data is hard bit data.

Or, the second radio-frequency unit can carry out base band Ll-Low processing and radio frequency processing the second data of output successively specifically for the first base band data for having carried out L3, L2 processing and Ll-High processing by the first radio-frequency unit to reception.That is the base band data type of the first base band data is frequency domain I/Q data.

Or, the second radio-frequency unit can export the second data specifically for the first base band data progress radio frequency processing for having carried out L3, L2 processing and Ll-High and Ll-Low processing by the first radio-frequency unit to reception.That is the base band data type of the first base band data is time domain I/Q data.

Exemplary, ETH (Ethernet, Ethernet can be passed through between digital processing unit 103 and each radio-frequency unit）Interface is connected.

Exemplary, digital processing unit 103 can be also used for carrying out time synchronized with the first radio-frequency unit and the second radio-frequency unit respectively, it is possible to further for carrying out time synchronized 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, for example, the information of each sector can be collected, is uniformly scheduled processing, then issues traffic order to each radio-frequency unit, specifically, traffic order can indicate that radio-frequency unit carries out CoMP processing.

Exemplary, digital processing unit 103 can be also used for realizing the OM (Operation of base station system Management, operation and maintenance）Processing, for example, inside of base station data being configured, updating, load or being safeguarded etc. and operate.

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

Exemplary, digital processing unit 103 can be also used for, by host-host protocol, such as including the data interaction that IPSEC security protocols carry out user plane or chain of command with core net.Specifically, it can be interacted by S1 interfaces or X2 interface.

Exemplary, base station system 100 can also externally provide baseband interface, it can be deployed in digital processing unit 103, it is schematically as shown in Figure 3, base station 1 includes 3 sectors, and one radio-frequency unit of each sector correspondence, 3 radio-frequency units share a digital processing unit, (Switch is exchanged digital processing unit control SW）Unit realizes the data interaction between radio-frequency unit, interacting between protocol processes, realization and core net can be transmitted or time synchronized etc. is carried out, baseband interface can also be externally provided, 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 exported by the baseband interface, are realized and are interacted with the base band data of other base stations through Switching Module, such as the interaction of base station 2, that is, 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.Fig. 4 radio-frequency unit 400 is an example of the second radio-frequency unit in above-mentioned base station system, and radio-frequency unit 400 includes receiving unit 401 and processing unit 402.

Receiving unit 401 is used for the first base band data for receiving digital processing unit transmission, wherein the first base band data is exported by the first radio-frequency unit.

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

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

It is pointed out that the radio-frequency unit of the embodiment of the present invention, which is 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 (2/ layer 3 of layer 1/ layer) processing function.Digital processing unit is referred to as simplified digital processing element（SDU) it is used to realize that the base band data between radio-frequency unit is exchanged, the functions such as base band cooperative scheduling function, master control transmission or clock processing can also be realized.Radio-frequency receiving-transmitting and Base-Band Processing function in radio-frequency unit can be by Single-Chip Integrations on a physical entity, in such manner, it is possible to reduce system cost.It should be understood that of the invention Embodiment is not limited this, can also be not integrated on a physical entity.It can be connected between digital processing unit and each radio-frequency unit by ETH interfaces.In addition, the radio-frequency unit of the embodiment of the present invention can all be high-power RF device, it can also all be small-power radio-frequency unit, high-power RF device can be used with portion radio frequency device, portion radio frequency device uses small-power radio-frequency unit.

The first base band data that the radio-frequency unit of the embodiment of the present invention second is forwarded according to data processing module from the first radio-frequency unit realizes the CoMP processing in base station.Based on such 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, so as to effectively improve gain.

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

Alternatively, as one embodiment, receiving unit 401 can be also used for receiving the first data from user equipment, according to first the second base band data of data output.Processing unit 402 can obtain synergistic data specifically for merging the second base band data and the first base band data, Base-Band Processing is carried out to synergistic data and exports the first user face data, wherein the first base band data and the second base band data are identical base band data type.Realize up CoMP processing.

It should be understood that the embodiment of the present invention is not construed as limiting to the number of radio-frequency unit, and can be two or more, under many sector site scenes, one radio-frequency unit of each sector site correspondence.It should also be understood that the radio-frequency unit for carrying out up multi-point cooperative processing can be two or more.For example, second radio-frequency unit can receive 1 the first base band data that other 1 the first radio-frequency unit are sent, the second base band data that 1 the first base band data and second radio-frequency unit are exported is merged, multiple base band datas corresponding with the plurality of radio-frequency unit difference that other any number of radio-frequency units are sent can also be received, the second base band data and the plurality of base band data are merged.Understand for convenience, the embodiment of the present invention is illustrated exemplified by being handled by the multi-point cooperative of two radio-frequency units.

Alternatively, processing unit 402 can be handled and processing the first user face data of output of layer 3 specifically for carrying out base band Ll-Low processing, Ll-High processing, layer 2 successively to synergistic data.Or processing unit 402 can be handled and processing the first user face data of output of layer 3 specifically for carrying out base band Ll-High processing, layer 2 successively to synergistic data.Or, processing unit 402 can be handled and processing the first user face data of output of layer 3 specifically for carrying out baseband layer 2 successively to synergistic data.Or, processing Unit 402 can be specifically for carrying out processing the first user face data of output of baseband layer 3 to synergistic data.Specific example may be referred to above-mentioned, and here is omitted.

Further, radio-frequency unit 400 can also include the first transmitting element 403.First transmitting element 403 is used to the first user face data of output being sent to digital processing unit, so as to digital processing unit by host-host protocol by the first user plane data transfer to core net.

Alternatively, as another embodiment, processing unit 402 can export the second data or to the first base band data progress radio frequency processing the second data of output specifically for proceeding Base-Band Processing to the first base band data and carrying out radio frequency processing.Radio-frequency unit 400 can also include the first transmitting element 403, and the second data are sent to user equipment by the second transmitting element 403.Wherein, the first base band data is exported after the first radio-frequency unit carries out Base-Band Processing according to the second user face data received from digital processing unit.Realize descending CoMP processing.

It should be understood that the embodiment of the present invention is not construed as limiting to the number of radio-frequency unit, and can be two or more, under many sector site scenes, one radio-frequency unit of each sector site correspondence.It should also be understood that the radio-frequency unit for carrying out descending multi-point cooperative processing can be two or more.For example, the base band data that the second radio-frequency unit exports the first base band data of reception after Base-Band Processing, other radio-frequency units are transmitted to by digital processing unit.Specific example may be referred to above-mentioned, and here is omitted.

Fig. 5 is the schematic block diagram of the radio-frequency unit of one embodiment of the invention.Fig. 5 radio-frequency unit 500 is an example of the first radio-frequency unit in above-mentioned base station system, and radio-frequency unit 500 includes processing unit 501 and transmitting element 502.

Processing unit 501 is used to export the first base band data.

Transmitting element 502, the first base band data for processing unit 501 to be exported is sent to digital processing unit, so that the first base band data is sent to the second radio-frequency unit by digital processing unit, the second radio-frequency unit realizes the CoMP processing in base station according to the first base band data.

It is pointed out that the radio-frequency unit of the embodiment of the present invention, which is 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 (2/ layer 3 of layer 1/ layer) processing function.Digital processing unit is referred to as simplified digital processing element（SDU) it is used to realize that the base band data between radio-frequency unit is exchanged, the functions such as base band cooperative scheduling function, master control transmission or clock processing can also be realized.Radio-frequency receiving-transmitting and Base-Band Processing function in radio-frequency unit can be by Single-Chip Integrations on a physical entity, in such manner, it is possible to reduce system cost.It should be understood that of the invention Embodiment is not limited this, can also be not integrated on a physical entity.It can be connected between digital processing unit and each radio-frequency unit by ETH interfaces.

The radio-frequency unit of the embodiment of the present invention first exports the first base band data, and the CoMP processing in base station is realized by data processing module second radio-frequency unit.Based on such 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, so as to effectively improve gain.

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

Alternatively, as one embodiment, radio-frequency unit 500 can also include the first receiving unit 503, and the first receiving unit 503 is used to receive the first data from user equipment, and processing unit 501 can be specifically for：First the first base band data of data output received according to receiving unit 503.Follow-up second radio-frequency unit can merge the second base band data and first base band data obtains synergistic data, Base-Band Processing is carried out to synergistic data and exports the first user face data, wherein the first base band data and the second base band data are identical base band data type.Realize up CoMP processing.

It should be understood that the radio-frequency unit that the embodiment of the present invention carries out up multi-point cooperative processing can be two or more.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 the first base band data of output is carried out by the first radio-frequency unit.

Alternatively, as another embodiment, radio-frequency unit 500 can also include the second receiving unit 504, and the second receiving unit 504 is used to receive second user face data from digital processing unit；Processing unit 501 exports the first base band data after can carrying out Base-Band Processing specifically for the second user face data received to the second receiving unit 504, and follow-up second radio-frequency unit proceeds Base-Band Processing to the first base band data.Realize descending CoMP processing.

It should be understood that the embodiment of the present invention is not construed as limiting to the number of radio-frequency unit, and can be two or more, under many sector site scenes, one radio-frequency unit of each sector site correspondence.It should also be understood that the radio-frequency unit for carrying out descending multi-point cooperative processing can be two or more.For example, the first radio-frequency unit can receive the base band data of the other radio-frequency units forwarded by digital processing unit, the first radio-frequency unit exports the first base band data and is transmitted to the second radio-frequency unit through digital processing unit.Specific example may be referred to above-mentioned, and here is omitted.

Fig. 6 is the schematic block diagram of the digital processing unit of one embodiment of the invention.Fig. 6 digital processing unit 600 is an example of digital processing unit in above-mentioned base station system, digital processing unit 600 Including receiving unit 601 and transmitting element 602.

Receiving unit 601 is used to receive the first base band data that the first radio-frequency unit is exported and sent.

Transmitting element 602 is used to the first base band data for receiving receiving unit 601 and is sent to the second radio frequency penetrating standby, realizes the CoMP processing in base station according to the first base band data so as to the second radio-frequency unit.

It is pointed out that the radio-frequency unit of the embodiment of the present invention, which is 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 (2/ layer 3 of layer 1/ layer) processing function.Digital processing unit is referred to as simplified digital processing element（SDU) it is used to realize that the base band data between radio-frequency unit is exchanged, the functions such as base band cooperative scheduling function, master control transmission or clock processing can also be realized.Radio-frequency receiving-transmitting and Base-Band Processing function in radio-frequency unit can be by Single-Chip Integrations on a physical entity, in such manner, it is possible to reduce system cost.It should be understood that the embodiment of the present invention is not limited this, it can also be not integrated on a physical entity.It can be connected between digital processing unit and each radio-frequency unit by ETH interfaces.

The first base band number that first radio-frequency unit is exported is transmitted to the second radio-frequency unit to realize the CoMP processing in base station by data processing module of the embodiment of the present invention.Based on such 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, so as to effectively improve gain.

Digital processing unit 600 can realize the function that digital processing unit is related in above-mentioned base station system, to avoid repeating, and be omitted appropriate and description similar in above-mentioned base station system.

Digital processing unit can be used for the OM processing for realizing base station system, for example, inside of base station data are configured, updated, loaded or safeguarded etc. with operation.Therefore, multiple radio-frequency units can share a digital processing unit be transmitted, Operation and Maintenance and the function such as synchronous, a corresponding digital processing unit is configured without each radio-frequency unit, so as to reduce the cost of system.

Alternatively, it is used as one embodiment, receiving unit 601 can be also used for receiving the first user face data that the second radio-frequency unit is sent, first user face data is that the second radio-frequency unit receives the first data from user equipment, according to first the second base band data of data output, merge the second base band data and the first base band data obtains synergistic data, Base-Band Processing output is carried out to synergistic data, wherein the first base band data and the second base band data are identical base band data type.Realize up CoMP processing.Further, transmitting element 602 can be also used for the first user plane data transfer to core net by host-host protocol.

Alternatively, as another embodiment, transmitting element 602 can be also used for second user face number According to the first radio-frequency unit is sent to, the first base band data is exported after carrying out Base-Band Processing to second user face data so as to the first radio-frequency unit.Follow-up second radio-frequency unit proceeds Base-Band Processing to the first base band data and exports the second data.Realize up CoMP processing.

Specific embodiment may be referred to above-mentioned, and here is omitted.

Alternatively, as another embodiment, digital processing unit 600 can also include synchronization unit 603, and synchronization unit 603 is used to carry out time synchronized with the first radio-frequency unit and the second radio-frequency unit respectively.It is possible to further for carrying out time synchronized by synchronous ethernet mode.

Alternatively, as another embodiment, digital processing unit 600 can also include collaboration unit 604, and collaboration unit 604 is used to realize the cooperative scheduling between sector or the cooperative scheduling between base station.The realization of coordinated scheduling function, for example, collaboration unit 604 can be used for the information for collecting each sector, uniformly it is scheduled processing, then traffic order is issued to each radio-frequency unit, and specifically, traffic order can indicate that radio-frequency unit carries out CoMP processing.Baseband interface can also be externally provided, realize and interacted with the base band data of other base stations through Switching Module, that is, realize the cooperative transmission between base station.

Fig. 7 is the schematic diagram of the radio-frequency unit of another embodiment of the present invention.Fig. 7 radio-frequency unit 700 is an example of the second radio-frequency unit in above-mentioned base station system, and the radio-frequency unit 700 includes processor 701, memory 702 and transceiver 703.The operation of the control device 700 of processor 701, processor 701 can also be referred to as CPU (Central Processing Unit, CPU）.Memory 702 can include read-only storage and random access memory, and provide instruction and data to processor 701.The a part of of memory 702 can also include non-volatile row random access memory（NVRAM ).Processor 701, memory 702 and transceiver 703 are coupled by bus system 710, and wherein bus system 710 is in addition to including data/address bus, in addition to power bus, controlling bus and status signal bus in addition.But for the sake of clear explanation, various buses are all designated as bus system 710 in figure.

Wherein, processor 701 is probably a kind of IC chip, the disposal ability with signal.In implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware in processor 701 or the instruction of software form.Above-mentioned processor 701 can be general processor, including CPU, NP etc.；It can also be DSP, ASIC, FPGA or other PLDs, discrete gate or transistor logic, discrete hardware components.It can realize or perform disclosed each method, step and the logic diagram in the embodiment of the present invention.General processor can be microprocessor or the processor can also be any conventional processor etc..

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

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

Alternatively, as one embodiment, transceiver 703 can be also used for receiving the first data from user equipment, according to first the second base band data of data output.Processor 701 can obtain synergistic data specifically for merging the second base band data and the first base band data, and carrying out Base-Band Processing to synergistic data exports the first user face data, wherein the first base band data and the second base band data are identical base band data type.Realize up CoMP processing.

Alternatively, processor 701 can be handled and processing the first user face data of output of layer 3 specifically for carrying out base band Ll-Low processing, Ll-High processing, layer 2 successively to synergistic data.Or processor 701 can be handled and processing the first user face data of output of layer 3 specifically for carrying out base band Ll-High processing, layer 2 successively to synergistic data.Or, processor 701 can be handled and processing the first user face data of output of layer 3 specifically for carrying out baseband layer 2 successively to synergistic data.Or, processor 701 can be specifically for carrying out processing the first user face data of output of baseband layer 3 to synergistic data.Specific example may be referred to above-mentioned, and here is omitted.

Further, transceiver 703 can be also used for the first user face data of output being sent to digital processing unit, so as to digital processing unit by host-host protocol by the first user plane data transfer to core net.

Alternatively, as another embodiment, processor 701 can export the second data or to the first base band data progress radio frequency processing the second data of output specifically for proceeding Base-Band Processing to the first base band data and carrying out radio frequency processing.Transceiver 703 can be also used for the second data being sent to user equipment.Wherein, the first base band data is exported after the first radio-frequency unit carries out Base-Band Processing according to the second user face data received from digital processing unit.Realize descending CoMP processing.

Fig. 8 is the schematic diagram of the radio-frequency unit of another embodiment of the present invention.Fig. 8 radio-frequency unit 800 is an example of the first radio-frequency unit in above-mentioned base station system, and the radio-frequency unit 800 includes processor 801, memory 802 and transceiver 803.The operation of the control device 800 of processor 801, place Reason device 801 can also be referred to as CPU.Memory 802 can include read-only storage and random access memory, and provide instruction and data to processor 801.The a part of of memory 802 can also include non-volatile row random access memory（ NVRAM ).Processor 801, memory 802 and transceiver 803 are coupled by bus system 810, and wherein bus system 810 is in addition to including data/address bus, in addition to power bus, controlling bus and status signal bus in addition.But for the sake of clear explanation, various buses are all designated as bus system 810 in figure.

Wherein, processor 801 is probably a kind of IC chip, the disposal ability with signal.In implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware in processor 801 or the instruction of software form.Above-mentioned processor 801 can be general processor, including CPU, NP etc.；It can also be DSP, ASIC, FPGA or other PLDs, discrete gate or transistor logic, discrete hardware components.It can realize or perform disclosed each method, step and the logic diagram in the embodiment of the present invention.General processor can be microprocessor or the processor can also be any conventional processor etc..

In this embodiment, processor 801 is used to export the first base band data.The first base band data that transceiver 803 is used to export processor 801 is sent to digital processing unit, so that the first base band data is sent to the second radio-frequency unit by digital processing unit, the second radio-frequency unit realizes the CoMP processing in base station according to the first base band data.The type of first base band data can include time domain I/Q data, frequency domain I/Q data, hard bit data or L2 data.

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

Alternatively, as one embodiment, transceiver 803 can be also used for receiving the first data from user equipment, and processor 801 can be specifically for：First the first base band data of data output received according to transceiver 803.Follow-up second radio-frequency unit can merge the second base band data and first base band data obtains synergistic data, Base-Band Processing is carried out to synergistic data and exports the first user face data, wherein the first base band data and the second base band data are identical base band data type.Realize up CoMP processing.

Alternatively, as another embodiment, transceiver 803 can be also used for receiving second user face data from digital processing unit；Processor 801 can be specifically for the second user that is received to transceiver 803 Face data export the first base band data after carrying out Base-Band Processing, and follow-up second radio-frequency unit proceeds Base-Band Processing to the first base band data.Realize descending CoMP processing.

Fig. 9 is the schematic diagram of the digital processing unit of another embodiment of the present invention.Fig. 9 digital processing unit 900 is an example of digital processing unit in above-mentioned base station system, and the digital processing unit 900 includes processor 901, memory 902 and transceiver 903.The operation of the control device 900 of processor 901, processor 901 can also be referred to as CPU.Memory 902 can include read-only storage and random access memory, and provide instruction and data to processor 901.The a part of of memory 902 can also include non-volatile row random access memory（ NVRAM ).Processor 901, memory 902 and transceiver 903 are coupled by bus system 910, and wherein bus system 910 is in addition to including data/address bus, in addition to power bus, controlling 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 is probably a kind of IC chip, the disposal ability with signal.In implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware in processor 901 or the instruction of software form.Above-mentioned processor 901 can be general processor, including CPU, NP etc.；It can also be DSP, ASIC, FPGA or other PLDs, discrete gate or transistor logic, discrete hardware components.It can realize or perform disclosed each method, step and the logic diagram in the embodiment of the present invention.General processor can be microprocessor or the processor can also be any conventional processor etc..

In this embodiment, transceiver 903 is used to receive the first base band data that the first radio-frequency unit is exported and sent.It is additionally operable to first base band data of reception is sent into the second radio frequency according to transceiver 903 and penetrates standby, realizes the CoMP processing in base station according to the first base band data so as to the second radio-frequency unit.Wherein the type of the first base band data can include time domain I/Q data, frequency domain I/Q data, hard bit data or L2 data.

Digital processing unit 900 can realize the function that digital processing unit is related in above-mentioned base station system, to avoid repeating, be not described in detail herein.

Processor 901 can be used for the OM processing for realizing base station system, for example, inside of base station data are configured, updated, loaded or safeguarded etc. with operation.Therefore, multiple radio-frequency units can share a digital processing unit be transmitted, Operation and Maintenance and the function such as synchronous, match somebody with somebody without each radio-frequency unit A corresponding digital processing unit is put, so as to reduce the cost of system.

Alternatively, it is used as one embodiment, transceiver 903 can be also used for receiving the first user face data that the second radio-frequency unit is sent, first user face data is that the second radio-frequency unit receives the first data from user equipment, according to first the second base band data of data output, merge the second base band data and the first base band data obtains synergistic data, Base-Band Processing output is carried out to synergistic data, wherein the first base band data and the second base band data are identical base band data type.Realize up CoMP processing.Further, transceiver 903 can be also used for the first user plane data transfer to core net by host-host protocol.

Alternatively, as another embodiment, transceiver 903 be can be also used for second user face data being sent to the first radio-frequency unit, and the first base band data is exported after carrying out Base-Band Processing to second user face data so as to the first radio-frequency unit.Follow-up second radio-frequency unit proceeds Base-Band Processing to the first base band data and exports the second data.Realize up CoMP processing.

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

Alternatively, as another embodiment, processor 901 can be used for the cooperative scheduling between sector or the cooperative scheduling between base station.Baseband interface can also be externally provided, realize and interacted with the base band data of other base stations through Switching Module, that is, realize the cooperative transmission between base station.

Figure 10 is the indicative flowchart of the multi-point cooperative processing method of one embodiment of the invention.This method can be performed by above-mentioned base station system.

1001, the first radio-frequency unit exports the first base band data, and the first base band data is sent into 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 into the second radio-frequency unit, the first radio-frequency unit and the second radio-frequency unit correspond to two sector sites in same base station respectively.

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

It is pointed out that the radio-frequency unit of the embodiment of the present invention, which is 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 (2/ layer 3 of layer 1/ layer) processing function.Digital processing unit is referred to as simplified digital processing element sDU) For realizing that the base band data between radio-frequency unit is exchanged, the functions such as base band cooperative scheduling function, master control transmission or clock processing can also be realized.Radio-frequency receiving-transmitting and Base-Band Processing function in radio-frequency unit can be by Single-Chip Integrations on a physical entity, in such manner, it is possible to reduce system cost.It should be understood that the embodiment of the present invention is not limited this, it can also be not integrated on a physical entity.It can be connected between digital processing unit and each radio-frequency unit by ETH interfaces.In addition, the radio-frequency unit of the embodiment of the present invention can all be high-power RF device, it can also all be small-power radio-frequency unit, high-power RF device can be used with portion radio frequency device, portion radio frequency device uses small-power radio-frequency unit.

The first base band data that first radio-frequency unit is exported is sent to the second radio-frequency unit by digital processing unit of the embodiment of the present invention, 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, and the second radio-frequency unit realizes the CoMP processing in base station according to the first base band data.Based on such 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, so as to effectively improve gain.

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

Alternatively, as one embodiment, in step 1001, the first radio-frequency unit can receive the first data, the first base band data according to a data output from user equipment.In step 1003, second radio-frequency unit can receive the first data from user equipment, according to first the second base band data of data output, merge the second base band data and the first base band data obtains synergistic data, Base-Band Processing is carried out to synergistic data and exports the first user face data, wherein the first base band data and the second base band data are identical base band data type.Realize up CoMP processing.

Specifically, the second radio-frequency unit can carry out base band Ll-Low processing, Ll-High processing, L2 processing and L3 processing the first user face datas of output successively to synergistic data.Or, the second radio-frequency unit can carry out base band Ll-High processing, L2 processing and L3 processing the first user face datas of output successively to synergistic data.The base band data type of the first base band data and the second base band data that are merged into synergistic data is frequency domain I/Q data.Or, the second radio-frequency unit can carry out base band L2 processing and L3 processing the first user face datas of output successively to synergistic 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 is hard bit data.Or, the second radio-frequency unit can carry out base band L3 processing the first user face data of output to synergistic data, that is, be merged into the of synergistic data The base band data type of one base band data and the second base band data is L2 data.

Further, first user face data of output is sent to digital processing unit by the second radio-frequency unit, digital processing unit can also receive the first user face data of the second radio-frequency unit transmission, and the first user face data is sent into core net by host-host protocol.

Alternatively, as another embodiment, second user face data can also be sent to the first radio-frequency unit by digital processing unit.First radio-frequency unit can also receive second user face data from digital processing unit, and in step 1001, the first base band data is exported after carrying out Base-Band Processing to second user face data.In step 1003, the second radio-frequency unit can proceed Base-Band Processing to the first base band data and carry out radio frequency processing the second data of output or radio frequency processing the second data of output be carried out to the first base band data, and the second data are sent into user equipment.Realize descending CoMP processing.

Alternatively, as another embodiment, digital processing unit can also carry out time synchronized with the first radio-frequency unit and the second radio-frequency unit respectively, it is possible to further for carrying out time synchronized by synchronous ethernet mode.

Alternatively, as another embodiment, digital processing unit can also realize the cooperative scheduling between sector or the cooperative scheduling between base station.Baseband interface can also be externally provided, realize and interacted with the base band data of other base stations through Switching Module, that is, realize the cooperative transmission between base station.

Those of ordinary skill in the art are it is to be appreciated that the unit and algorithm steps of each example described with reference to the embodiments described herein, can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are performed with hardware or software mode actually, depending on the application-specific and design constraint of technical scheme.Professional and technical personnel can realize described function to each specific application using distinct methods, but this realization is it is not considered that beyond the scope of this invention.

It is apparent to those skilled in the art that, for convenience and simplicity of description, the specific work process of the system of foregoing description, device and unit may be referred to the corresponding process in preceding method embodiment, will not be repeated here.

In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can realize by another way.For example, device embodiment described above is only schematical, for example, the division of the unit, it is only a kind of division of logic function, there can be other dividing mode when actually realizing, such as multiple units or component can combine or be desirably integrated into another system, or some features can be ignored, or do not perform.It is another, shown or discussed coupling each other or direct close or communication connection can be can be electrical, machinery or other forms by some interfaces, the INDIRECT COUPLING or communication connection of device or unit. It can be for the part that unit is shown or may not be physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Some or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.

In addition, each functional unit in each of the invention embodiment can be integrated in a processing unit or unit is individually physically present, can also two or more units it is integrated in a unit.

If the function is realized using in the form of SFU software functional unit and as independent production marketing or in use, can be stored in a computer read/write memory medium.Understood based on such, the part or the part of the technical scheme that technical scheme substantially contributes to prior art in other words can be embodied in the form of software product, the computer software product is stored in a storage medium, including some instructions are to cause a computer equipment（Can be personal computer, server, or network equipment etc.）Perform all or part of step of each embodiment methods described of the invention.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage（ROM, Read-Only Memory), random access memory（RAM, Random Access Memory), magnetic disc or CD etc. are various can be with the medium of store program codes.

It is described above; only embodiment of the invention, but protection scope of the present invention is not limited thereto, any one skilled in the art the invention discloses technical scope in; change or replacement can be readily occurred in, should be all included within the scope of the present invention.Therefore, protection scope of the present invention described should be defined by scope of the claims.

Claims

Claim

1st, a kind of base station system, it is characterised in that including the first radio-frequency unit, the second radio-frequency unit and digital processing unit, first radio-frequency unit and the second radio-frequency unit correspond to two sector sites in same base station respectively,

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 inphase quadrature I/Q data, frequency domain I/Q data, hard bit data or L2 data；

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

Second radio-frequency unit, for receiving first base band data that the digital processing unit is sent, the multi-point cooperative CoMP processing in base station is realized according to first base band data.

2nd, the system as claimed in claim 1, it is characterised in that

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

Second radio-frequency unit, it is further used for receiving the first data from the user equipment, according to the base band data of the first data output second, merge 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.

3rd, system as claimed in claim 2, it is characterised in that

Second radio-frequency unit, specifically for carrying out the low Ll-Low processing of baseband layer 1, the high Ll-High processing of layer 1 successively to the synergistic data, layer 2 is handled and the processing of layer 3 exports first user face data；Or

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

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

Second radio-frequency unit, specifically for carrying out the processing output of baseband layer 3 first user face data to the synergistic data.

4th, system as claimed in claim 2 or claim 3, it is characterised in that

Second radio-frequency unit, is additionally operable to first user face data of output being sent to the number Word processing device；

The digital processing unit, is additionally operable to receive first user face data that second radio-frequency unit is sent, by host-host protocol by first user plane data transfer to core net.

5th, the system as claimed in claim 1, it is characterised in that

The digital processing unit, is additionally operable to second user face data being sent to first radio-frequency unit；

First radio-frequency unit, is further used for receiving second user face data from the digital processing unit, first base band data is exported after carrying out Base-Band Processing to second user face data；Second radio-frequency unit, it is further used for proceeding Base-Band Processing to first base band data and carries out radio frequency processing the second data of output or radio frequency processing the second data of output are carried out to first base band data, second data is sent to user equipment.

6th, the system as described in claim any one of 1-5, it is characterised in that

The digital processing unit, is additionally operable to carry out time synchronized with first radio-frequency unit and second radio-frequency unit respectively.

7th, the system as described in claim any one of 1-6, it is characterised in that

The digital processing unit, is additionally operable to realize the cooperative scheduling between sector or the cooperative scheduling between base station.

8th, a kind of radio-frequency unit, it is characterised in that including：

Receiving unit, the first base band data for receiving digital processing unit transmission, wherein described first base band data is exported by the first radio-frequency unit, and 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, first base band data for being received according to the receiving unit realizes the multi-point cooperative CoMP processing in base station.

9th, radio-frequency unit as claimed in claim 8, it is characterised in that

The receiving unit, is additionally operable to receive the first data from the user equipment, according to the base band data of the first data output second；

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

10th, radio-frequency unit as claimed in claim 9, it is characterised in that

The processing unit specifically for：Carry out the low Ll-Low of baseband layer 1 successively to the synergistic data Processing, the high Ll-High processing of layer 1, layer 2 are handled and the processing output of layer 3 first user face data；Or

The processing unit specifically for：The high Ll-High processing of baseband layer 1, layer 2 is carried out successively to the synergistic data to handle and the processing output of layer 3 first user face data；Or

The processing unit specifically for：Baseband layer 2 is carried out successively to the synergistic data to handle and the processing output of layer 3 first user face data；Or

The processing unit specifically for：The processing output of baseband layer 3 first user face data is carried out to the synergistic data.

11st, the radio-frequency unit as described in claim 9 or 10, it is characterised in that the radio-frequency unit also includes the first transmitting element,

First transmitting element, for first user face data of output to be sent into the digital processing unit, so as to the digital processing unit by host-host protocol by first user plane data transfer to core net.

12nd, radio-frequency unit as claimed in claim 8, it is characterised in that the radio-frequency unit also includes the second sending module,

The processing unit specifically for：Base-Band Processing is proceeded to first base band data and carries out radio frequency processing the second data of output or radio frequency processing the second data of output is carried out to first base band data；

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

Wherein, first base band data is exported after first radio-frequency unit carries out Base-Band Processing according to the second user face data received from the digital processing unit.

13rd, a kind of radio-frequency unit, it is characterised in that including：

Processing unit, for exporting the first base band data, 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；

Transmitting element, first base band data for the processing unit to be exported is sent to digital processing unit, so that first base band data is sent to second radio-frequency unit by the digital processing unit, second radio-frequency unit realizes the multi-point cooperative CoMP processing in base station according to first base band data.

14th, radio-frequency unit as claimed in claim 13, it is characterised in that the radio-frequency unit also includes the first receiving unit,

First receiving unit, for receiving the first data from user equipment； The processing unit specifically for：First base band data described in first data output received according to the receiving unit.

15th, radio-frequency unit as claimed in claim 13, it is characterised in that the radio-frequency unit also includes the second receiving unit,

Second receiving unit, for receiving second user face data from the digital processing unit；The processing unit specifically for：First base band data is exported after carrying out Base-Band Processing to the second user face data that second receiving unit is received.

16th, a kind of digital processing unit, it is characterised in that including：

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

Transmitting element, first base band data for the receiving unit to be received is sent to the second radio frequency and penetrates standby, realizes the multi-point cooperative CoMP processing in base station according to first base band data so as to second radio-frequency unit.

17th, digital processing unit as claimed in claim 16, it is characterised in that

The receiving unit, it is additionally operable to receive the first user face data that second radio-frequency unit is sent, first user face data is that second radio-frequency unit receives the first data from user equipment, according to the base band data of the first data output second, merge second base band data and first base band data obtains synergistic data, Base-Band Processing output is carried out to the synergistic data, wherein first base band data and second base band data are identical base band data type.

The transmitting element, is additionally operable to first user plane data transfer to core net by host-host protocol.

18th, the digital processing unit as described in any one of claim 16, it is characterized in that, the transmitting element, it is additionally operable to second user face data being sent to first radio-frequency unit, first base band data is exported after carrying out Base-Band Processing to second user face data so as to first radio-frequency unit.

19th, the digital processing unit as described in claim any one of 16-18, it is characterised in that the digital processing unit also includes synchronization unit,

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

20th, the digital processing unit as described in claim any one of 16-19, it is characterised in that described Digital processing unit also includes collaboration unit,

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

21st, a kind of multi-point cooperative processing method, it is characterised in that including：

First radio-frequency unit exports the first base band data, and first base band data is sent into digital processing unit, and 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 receives first base band data that first radio-frequency unit is sent, first base band data is sent to the second radio-frequency unit, first radio-frequency unit and the second radio-frequency unit correspond to two sector sites in same base station respectively；

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

22nd, the method as described in claim 21, it is characterised in that first radio-frequency unit exports the first base band data, including：

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

Second radio-frequency unit realizes the multi-point cooperative CoMP processing in base station according to first base band data, including：

Second radio-frequency unit receives the first data from the user equipment, according to the base band data of the first data output second, merge 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.

23rd, method as claimed in claim 22, it is characterised in that second radio-frequency unit carries out Base-Band Processing to the synergistic data and exports the first user face data, including：

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

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

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

Second radio-frequency unit carries out the processing output of baseband layer 3 first user to the synergistic data Face data.

24th, the method as described in claim 22 or 23, it is characterised in that methods described 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, by host-host protocol by first user plane data transfer to core net.

25th, method as claimed in claim 21, it is characterised in that methods described also includes：Second user face data are sent to first radio-frequency unit by the digital processing unit；First radio-frequency unit exports the first base band data, including：

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

Second radio-frequency unit realizes the multi-point cooperative CoMP processing in base station according to first base band data, including：

Second radio-frequency unit proceeds Base-Band Processing to first base band data and carries out radio frequency processing the second data of output or radio frequency processing the second data of output are carried out to first base band data, and second data are sent into user equipment.

26th, the method as described in claim any one of 21-25, it is characterised in that methods described also includes：

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

27th, the method as described in claim any one of 21-26, it is characterised in that methods described also includes：

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