CN102594829A - Baseband switching equipment and switching method thereof - Google Patents
Baseband switching equipment and switching method thereof Download PDFInfo
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- CN102594829A CN102594829A CN2012100508611A CN201210050861A CN102594829A CN 102594829 A CN102594829 A CN 102594829A CN 2012100508611 A CN2012100508611 A CN 2012100508611A CN 201210050861 A CN201210050861 A CN 201210050861A CN 102594829 A CN102594829 A CN 102594829A
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Abstract
The embodiment of the invention relates to the technical field of wireless communication, in particular to baseband switching equipment and a switching method of the baseband switching equipment, which are used for solving the problem existing in the prior art that a baseband unit cannot be connected with test equipment, thereby restricting the development time of the baseband unit, and adding difficulty in positioning an error unit after an error occurs. The baseband switching equipment in the embodiment of the invention comprises a baseband data conversion module for converting baseband data received from equipment to be tested through a wireless baseband interface module to an interface protocol of the test equipment, and transmitting the interface protocol to the test equipment through a test baseband interface module, and converting baseband data received from the test equipment through the test baseband interface module into an interface protocol of the equipment to be tested, and transmitting the interface protocol to the equipment to be tested through the wireless baseband interface module. Since the baseband unit can be connected with the test unit, the development time for the baseband unit is shortened, and the difficulty in positioning the error unit after the error occurs is reduced.
Description
Technical field
The present invention relates to wireless communication technology field, particularly a kind of baseband interconnection equipment and the method for transferring thereof.
Background technology
In the process of Wireless Telecom Equipment exploitation, for the progress of accelerating to develop, need to use a lot of testers that equipment or part unit in the exploitation are tested, comprise functional verification, performance test, location of mistake etc.Tester commonly used has frequency spectrograph, signal analyzer, signal source, oscilloscope, channel simulator etc.
The common method of attachment of present Wireless Telecom Equipment use test instrument mainly is to connect base station radio-frequency unit (Remote Radio Unit through the radio frequency cable line; The radio frequency interface of radio frequency interface RRU) (antennal interface) and tester, method of attachment is shown in Figure 1A.
Mainly (Base Band Unit BBU) forms with radio frequency unit two parts Wireless Telecom Equipment, and both distinguish development& testing in earlier stage for Base Band Unit and radio frequency unit in the equipment development process, and then the uniting and adjustment test by Base Band Unit.The testing authentication of equipment all needs the use test instrument to test; Because the relatively standard interface of tester commonly used in the market all is the radiofrequency signal interface; Therefore present Wireless Telecom Equipment is if use these general testers to test, and can only all develop to accomplish at Base Band Unit and radio frequency unit and just can test later on.
The baseband signal interface that is limited to universal test instrument in the market can't directly directly link to each other with the baseband signal interface of Base Band Unit; Before radio frequency unit is not developed completion; The Base Band Unit of base station has no idea to use general tester to test separately; Verify the function correctness of Base Band Unit in advance, thus the development time of having limited Base Band Unit.And, when Base Band Unit and radio frequency unit are tested together,, need long time to judge that this mistake (BUG) is that which unit causes in case wrong (BUG) occurred, increased the difficulty of positioning problems.
In sum, can only be connected with testing equipment by radio frequency unit in the present metering system, Base Band Unit can not be connected with testing equipment, thereby has limited the development time of Base Band Unit, and occurs having increased the difficulty of locating error unit after the mistake.
Summary of the invention
A kind of baseband interconnection equipment that the embodiment of the invention provides and the method for transferring thereof; Can not be connected with testing equipment in order to solve the Base Band Unit that exists in the prior art; Thereby limited the development time of Base Band Unit, and occurred having increased the problem of locating the error unit difficulty after the mistake.
A kind of baseband interconnection equipment that the embodiment of the invention provides comprises:
Field programmable gate array base band data modular converter; Be used for to convert to through the base band data that the radio base band interface module receives the interface protocol of testing equipment from equipment under test; And through the base band data of test baseband interface module after testing equipment is sent conversion; And the interface protocol that will convert equipment under test to, and through the base band data of radio base band interface module after equipment under test sends conversion through the base band data that comes self-testing device that test baseband interface module receives;
The radio base band interface module is used between base band data modular converter and equipment under test, transmitting the base band data of transmission;
Test baseband interface module is used between base band data modular converter and testing equipment, transmitting the base band data of transmission.
A kind of method of carrying out the baseband digital signal switching that the embodiment of the invention provides comprises:
Convert the base band data that receives to the interface protocol of testing equipment and the base band data after testing equipment is sent conversion from equipment under test; And
Convert the base band data that comes self-testing device that receives to the interface protocol of equipment under test and the base band data after equipment under test sends conversion.
Owing to can realize that Base Band Unit is connected with testing equipment, thereby shorten the development time of Base Band Unit, drop to the difficulty that location, wrong back error unit occurs;
Further, present method of attachment requires tester must have radio frequency unit, thereby has improved the cost of tester, has increased the cost of equipment vendors' use test instruments.Because the embodiment of the invention can realize transmitting through baseband signal between tester and the equipment under test, thereby reduced the cost of tester.
Description of drawings
Figure 1A is that baseband signal connects sketch map in the background technology;
Figure 1B connects sketch map for embodiment of the invention baseband signal;
Fig. 2 is the structural representation of first kind of baseband interconnection equipment of the embodiment of the invention;
Fig. 3 is the structural representation of second kind of baseband interconnection equipment of the embodiment of the invention;
Fig. 4 is the structural representation of the third baseband interconnection equipment of the embodiment of the invention;
Fig. 5 is the structural representation of embodiment of the invention equipment under test;
Fig. 6 is the structural representation of embodiment of the invention testing equipment;
Fig. 7 carries out the method flow sketch map of baseband digital signal switching for the embodiment of the invention.
Embodiment
Base band data modular converter in the embodiment of the invention baseband interconnection equipment will convert the interface protocol of testing equipment through the base band data from equipment under test that the radio base band interface module receives to; And through the base band data of test baseband interface module after testing equipment is sent conversion; And the interface protocol that will convert equipment under test to, and through the base band data of radio base band interface module after equipment under test sends conversion through the base band data that comes self-testing device that test baseband interface module receives.Owing to can realize that Base Band Unit is connected with testing equipment, thereby shorten the development time of Base Band Unit, drop to the difficulty that location, wrong back error unit occurs.
In force, the signal that transmits between equipment to be tested and the baseband interconnection equipment is a baseband digital signal; And/or the signal that transmits between testing equipment and the baseband interconnection equipment is a baseband digital signal;
Accordingly, baseband interconnection equipment obtains base band data from baseband digital signal.
Below in conjunction with Figure of description the embodiment of the invention is described in further detail.
Shown in Figure 1B, embodiment of the invention baseband signal connects in the sketch map, and baseband interconnection equipment links to each other with equipment under test through multifiber or other data wires; Be connected with testing equipment through data wire.The baseband interconnection equipment of the embodiment of the invention can connect TDD (Time division duplex; Time division duplex) Wireless Telecom Equipment of pattern also can connect the Wireless Telecom Equipment of FDD (Frequency division duplex, FDD) pattern; Simultaneously can support full-duplex mode; Support to connect the Wireless Telecom Equipment that possesses many antenna functions, at this time base band data has multichannel data, the data of the corresponding antenna in each road.
As shown in Figure 2, first kind of baseband interconnection equipment of the embodiment of the invention comprises: base band data modular converter 20, radio base band interface module 21 and test baseband interface module 22.
Base band data modular converter 20; Be used for to convert to through the base band data that radio base band interface module 21 receives the interface protocol of testing equipment from equipment under test; And through the base band data of test baseband interface module 22 after testing equipment is sent conversion; And the interface protocol that will convert equipment under test to, and through the base band data of radio base band interface module 21 after equipment under test sends conversion through the base band data that comes self-testing device that test baseband interface module 22 receives;
Radio base band interface module 21 is used between base band data modular converter 20 and equipment under test, transmitting the base band data of transmission;
Test baseband interface module 22 is used between base band data modular converter 20 and testing equipment, transmitting the base band data of transmission.
Wherein, The base band data modular converter 20 of the embodiment of the invention can be a kind of programming device or special-purpose integrated circuit (ASIC); Such as FPGA (Field-Programmable Gate Array; Field programmable gate array) module, DSP (Digital Signal Processor, Digital Signal Processing) module.
Preferably, the agreement of radio base band interface module 21 supports includes but not limited to following agreement:
TD-SCDMA IR (TD SDMA digital mobile cellular telecommunication net distributed base station IR) interface protocol, CPRI (Common Public Radio Interface; Common public radio interface) PCIe interface and the Base Band Unit of Wireless Telecom Equipment and other interface protocols of radio frequency unit of the DU equipment of TD-LTE IR (the TD SDMA Long Term Evolution digital mobile cellular telecommunication net distributed base station IR) interface protocol of agreement, CCSA (China Communications Standards Association, CCSA) definition, DigRF interface protocol (interface protocol between the base band of portable terminal and the radio frequency IC), connection C-RAN.
Preferably, the agreement of test baseband interface module 22 supports includes but not limited to following agreement:
SCSI (Small Computer System Interface, small computer system interface) agreement and Z-DOK+ interface protocol.
Wherein, test baseband interface module 22 can be that the short distance digital data transmission interface of using always is any, can be serial or parallel.In force, can select the corresponding matched interface according to the interface type that tester is supported.
Preferably, can also sending function and the receiving function in the test baseband interface module 22 be divided into two modules.Concrete, as shown in Figure 3, test baseband interface module 22 can further include: test base band input interface module 220 and test base band output interface module 221.
Test base band input interface module 220 is used for giving base band data modular converter 20 with the transfer of data of testing equipment;
Test base band output interface module 221 is used for giving testing equipment with the transfer of data of base band data modular converter 20.
Preferably; Base band data modular converter 20 is according to conversion parameter; To convert the agreement that the testing equipment interface is supported from the base band data of equipment under test to, and according to conversion parameter, the base band data of self-testing device converts the agreement that the equipment under test interface is supported in the future.
Interface protocol with equipment under test is the CPRI agreement below, and the supported protocol of testing equipment interface is that the SCSI agreement is an example, and the function of base band data modular converter 20 is elaborated.
Need to prove that the conversion between conversion between other agreements and CPRI agreement and the SCSI agreement is similar, repeats no more at this.
Base band data modular converter 20 is resolved through data and I/Q data in (Control & Management, control and management) passage of the C&M in the base band data of radio base band interface module reception and the S passage according to conversion parameter; According to conversion parameter, the I/Q data are divided into a plurality of groups, wherein every group of data belong to same radio-frequency channel; To one group of data, these group data are sent through corresponding interface in the test baseband interface module; And
According to conversion parameter, will form the I/Q data through the base band data that each interface in the test baseband interface module is received; Fill the data in C&M passage and the S passage according to CPRI protocol data form; And data in C&M passage and the S passage and I/Q data are sent through tested baseband interface module.
Preferably, the conversion parameter that uses of base band data modular converter 20 include but not limited in the following message partly or entirely:
The number of antenna of equipment under test, the interface rate of each agreement, base station side or end side.
Concrete, CPRI agreement layer 2 (data link layer) provides the service interface of three kinds of data: SAP
IQ, SAP
CMAnd SAP
S, SAP
CMAnd SAP
SInterface is also referred to as C&M passage, S passage.SAP
IQBe the business datum interface, business datum is sent through this service interface and is accepted; SAP
CMBe control and management data interface, the data of control and management are sent through this service interface and are accepted; SAP
SBe synchronous data interface, the data that the device synchronization at CPRI interface two ends need be transmitted are sent through this service interface and are accepted.
SAP
IQThe data array of data-interface is following:
Wherein
Represent a pair of I, the Q data of a radio-frequency channel, a representes the radio-frequency channel sequence number (supposing 1≤a≤8) of wireless device, and each is right
Data comprise I, two integer datas of Q, the bit bit wide M of each data (specifically can select the size of M as required).
With M=15 is example, the I/Q data is divided into a plurality of groups comprises:
At first the SAP of CPRI agreement
IQThe data of data-interface are divided into 8 parts, specifically can be referring to table 1;
Then, base band data modular converter 20 is exported to test baseband interface module 22 with 8 partial datas, and every partial data is corresponding one road SCSI respectively.
In the corresponding relation of data b it and SCSI pin, because each data is made up of M bit, each is right
Data have 2*M bit, are expressed as I
M-1, I
M-2, I
M-3..., I
2, I
1, I
0, Q
M-1, Q
M-2, Q
M-3..., Q
2, Q
1, Q
0Guarantee that generally the quantity that scsi interface is used for transmitting the pin of data is no less than 2*M; If bit quantity (the altogether bit number of the bit quantitaes a pair of I/Q data here of number of pins more than
; Here hypothesis is 2M); Respectively I, two data of Q are carried out sign extended so earlier, bit quantity is equated with number of pins.The corresponding relation of data b it and SCSI pin (S representes the symbol data of sign extended) as shown in table 2.
Need to prove that table 2 just illustrates, can both have at least one pin corresponding as long as can guarantee each bit of data, the corresponding relation of any data b it and SCSI pin all is suitable for the embodiment of the invention.
It is above-mentioned inverse process that the scsi data format conversion becomes the process of CPRI data format; Wherein for the data in C&M passage and the S passage; Base band data modular converter 20 need be filled according to the data format of CPRI, and the content of filling can be provided with, such as being the data according to the control and the management of CPRI protocol requirement; Perhaps the feedback data of CPRI protocol streams range request also can be other any data; The data format of CPRI can be referring to " CPRI Specification V4.2 " agreement.
Table 1
| The pin title | The Bit data |
| I_DATA(0) | I0 |
| I_DATA(1) | I1 |
| ...... | ...... |
| I_DATA(M-1) | IM-1 |
| I_DATA(M) | S |
| Q_DATA(0) | Q0 |
| Q_DATA(1) | Q1 |
| ...... | ...... |
| Q_DATA(M-1) | QM-1 |
| Q_DATA(M) | S |
Table 2
Preferably, the conversion parameter of base band data modular converter 20 uses can store in the base band data modular converter 20 in advance; Also can be provided with as required.
If be provided with, concrete, as shown in Figure 4, the third baseband interconnection equipment of the embodiment of the invention comprises: control and synchronization module 23.
Control and synchronization module 23 are used for according to configuration information, are base band data modular converter 20 configuration transitions parameters.
In force, the tester inputs to control and synchronization module 23 through the configuration information that human-computer interaction interface will comprise conversion parameter.After control and synchronization module 23 are received configuration information, just can be base band data modular converter 20 configuration transitions parameters.
Preferably; If configuration information comprises the interface protocol of equipment under test support and the interface protocol that testing equipment is supported; Then control and synchronization module 23 also are used for according to configuration information, the agreement that the agreement of supporting for the interface of base band data modular converter 20 configuration equipment under tests and the interface of testing equipment are supported; Accordingly, base band data modular converter 20 carries out confirming the agreement that the interface of equipment under test and testing equipment is supported respectively according to configuration information before the base band data conversion.
Preferably, control and synchronization module 23 can carry out synchronously through the synchrodata (being the data in the S passage) in the base band data of radio base band interface module reception according to base band data modular converter 20;
Control and synchronization module 23 can also carry out according to the synchronizing signal of receiving through sync cap synchronously.
The baseband interconnection equipment of the embodiment of the invention can also comprise that the built-in power module is used to baseband interconnection equipment and supplies power; Can also directly adopt external power supply is the baseband interconnection power devices.
In force, the baseband interconnection equipment of the embodiment of the invention can be equipment under test or testing equipment.
Accordingly; Base band data modular converter 20 will convert the interface protocol of opposite equip. through the base band data that the internal interface module receives to; And through the base band data of external interface module after opposite equip. sends conversion; And the interface protocol that will convert internal support to, and through the base band data after the internal interface module transmission conversion through the base band data that external interface module receives from opposite equip.;
External interface module is used between baseband interconnection equipment and opposite equip., transmitting the base band data of transmission.
If baseband interconnection equipment is equipment under test, opposite equip. is a testing equipment, and external interface module is test baseband interface module 21, and is as shown in Figure 5;
If baseband interconnection equipment is testing equipment, opposite equip. is an equipment under test, and external interface module is that radio base band interface module 22 is as shown in Figure 6.
Accordingly; Base band data modular converter 20 is according to conversion parameter; To convert the interface protocol of opposite equip. through the base band data that the internal interface module receives to; And, will convert the interface protocol of internal support to through the base band data that external interface module receives from opposite equip. according to conversion parameter.
Accordingly, if baseband interconnection equipment is equipment under test, and external interface module is the SCSI agreement;
Base band data modular converter 20 is resolved C&M passage and data in the S passage and I/Q data in the base band data that receives through the internal interface module according to conversion parameter; According to conversion parameter, the I/Q data are divided into a plurality of groups, wherein every group of data belong to same radio-frequency channel; To one group of data, these group data are sent through interface corresponding in the external interface module; And, will form the I/Q data through the base band data that each interface in the external interface module is received according to conversion parameter; Fill the data in C&M passage and the S passage according to CPRI protocol data form; And the data in C&M passage and the S passage and I/Q data are sent through the internal interface module.
Accordingly, if baseband interconnection equipment is testing equipment, and external interface module is the CPRI agreement; Base band data modular converter 20 is resolved C&M passage and data in the S passage and I/Q data in the base band data that receives through external interface module according to conversion parameter; According to conversion parameter, the I/Q data are divided into a plurality of groups, wherein every group of data belong to same radio-frequency channel; To one group of data, these group data are sent through interface corresponding in the internal interface module; And, will form the I/Q data through the base band data that each interface in the internal interface module is received according to conversion parameter; Fill the data in C&M passage and the S passage according to CPRI protocol data form; And the data in C&M passage and the S passage and I/Q data are sent through external interface module.
Accordingly, control and synchronization module 23 are base band data modular converter 20 configuration transitions parameters according to configuration information;
Accordingly, if baseband interconnection equipment is equipment under test, control and synchronization module 23 be according to configuration information, the agreement of supporting for the interface of base band data modular converter configuration testing equipment;
If baseband interconnection equipment is testing equipment, control and synchronization module 23 dispose the agreement of the interface support of equipment under test according to configuration information for the base band data modular converter.
Present method of attachment can only directly be tested and measure the radiofrequency signal of equipment under test, and can't directly test and measure the baseband signal of equipment under test.This makes the thermometrically of Base Band Unit equipment receive the influence of the development progress of radio frequency unit, influences the Products Development cycle to a certain extent.Because the embodiment of the invention can realize that Base Band Unit is connected with testing equipment, thereby has shortened the development time of Base Band Unit
Present method of attachment can't be carried out thermometrically to Base Band Unit separately, can only carry out thermometrically to the integral body of Base Band Unit and radio frequency unit, can not effectively position mistake or deviation, increases the time of test position fix.Because the embodiment of the invention can realize that Base Band Unit is connected with testing equipment, dropped to the difficulty that location, wrong back error unit occurs.
Present method of attachment requires tester must have radio frequency unit, thereby has improved the cost of tester, has increased the cost of equipment vendors' use test instruments.Because the embodiment of the invention can realize transmitting through baseband signal between tester and the equipment under test, thereby reduced the cost of tester.
Based on same inventive concept; A kind of method of transferring also is provided in the embodiment of the invention; Because principle and embodiment of the invention baseband interconnection unit affinity that this method is dealt with problems, so the enforcement of this method can repeat part and repeat no more referring to the enforcement of equipment.
As shown in Figure 7, the method that the embodiment of the invention is transferred comprises the following steps:
Wherein, do not have inevitable sequential relationship between step 701 and the step 702, if receive the base band data of equipment under test, then execution in step 701; If receive the base band data of testing equipment, then execution in step 702.That is to say that step 701 and step 702 can be carried out simultaneously, also can first execution in step 701, also can first execution in step 702.
Preferably, in the step 701,, will convert the agreement that the testing equipment interface is supported to from the base band data of equipment under test according to conversion parameter;
Preferably, in the step 702, according to conversion parameter, the base band data of self-testing device converts the agreement that the equipment under test interface is supported in the future.
If the interface protocol of equipment under test is the CPRI agreement, the supported protocol of testing equipment interface is the SCSI agreement:
Preferably, in the step 701, according to conversion parameter, resolve to receive from the C&M passage in the base band data of equipment under test and data in the S passage and I/Q data; According to conversion parameter, the I/Q data are divided into a plurality of groups, wherein every group of data belong to same radio-frequency channel; Every group of data are sent to testing equipment respectively.
If the interface protocol of equipment under test is the CPRI agreement, the supported protocol of testing equipment interface is the SCSI agreement:
Preferably, in the step 701,, the multi-group data of receiving that comes self-testing device is formed the I/Q data according to conversion parameter; Fill the data in C&M passage and the S passage according to CPRI protocol data form; Data in C&M passage and the S passage and I/Q data are sent to equipment under test.
Preferably, this method also comprises:
Carry out synchronously from the synchrodata in the base band data of equipment under test according to what receive; Or
Carry out synchronously according to the synchronizing signal of receiving.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (25)
1. a baseband interconnection equipment is characterized in that, this equipment comprises:
The base band data modular converter; Be used for to convert to through the base band data that the radio base band interface module receives the interface protocol of testing equipment from equipment under test; And through the base band data of test baseband interface module after testing equipment is sent conversion; And the interface protocol that will convert equipment under test to, and through the base band data of radio base band interface module after equipment under test sends conversion through the base band data that comes self-testing device that test baseband interface module receives;
The radio base band interface module is used between base band data modular converter and equipment under test, transmitting the base band data of transmission;
Test baseband interface module is used between base band data modular converter and testing equipment, transmitting the base band data of transmission.
2. equipment as claimed in claim 1 is characterized in that, said test baseband interface module comprises:
Test base band output interface module is used for giving testing equipment with the transfer of data of base band data modular converter;
Test base band input interface module is used for giving the base band data modular converter with the transfer of data of testing equipment.
3. equipment as claimed in claim 1 is characterized in that, said base band data modular converter specifically is used for:
According to conversion parameter, will convert the agreement that the testing equipment interface is supported from the base band data of equipment under test to, and according to said conversion parameter, the base band data of self-testing device converts the agreement that the equipment under test interface is supported in the future.
4. equipment as claimed in claim 3 is characterized in that, the agreement of said radio base band interface module support comprises:
The TD SDMA Long Term Evolution digital mobile cellular telecommunication net distributed base station IR interface protocol of TD SDMA digital mobile cellular telecommunication net distributed base station IR interface protocol, common public radio interface CPRI agreement, the CCSA of CCSA definition, the base band of portable terminal and the interface protocol between the radio frequency IC and the PCIe interface that connects the DU equipment of C-RAN;
The agreement of said test baseband interface module support comprises: small computer system interface SCSI agreement and Z-DOK+ interface protocol.
5. equipment as claimed in claim 4 is characterized in that, the interface protocol of said equipment under test is the CPRI agreement, and the supported protocol of said testing equipment interface is the SCSI agreement;
Said base band data modular converter specifically is used for:
According to conversion parameter, resolve C&M passage and data in the S passage and I/Q data in the base band data that receives through the radio base band interface module; According to conversion parameter, the I/Q data are divided into a plurality of groups, wherein every group of data belong to same radio-frequency channel; To one group of data, these group data are sent through corresponding interface in the test baseband interface module; And
According to conversion parameter, will form the I/Q data through the base band data that each interface in the test baseband interface module is received; Fill the data in C&M passage and the S passage according to CPRI protocol data form; And the data in C&M passage and the S passage and I/Q data are sent through the radio base band interface module.
6. like the arbitrary described equipment of claim 3～5, it is characterized in that said equipment also comprises:
Control and synchronization module are used for according to configuration information, are said base band data modular converter configuration transitions parameter.
7. equipment as claimed in claim 6 is characterized in that, said control and synchronization module also are used for:
According to configuration information, the agreement that the agreement of supporting for the interface of said base band data modular converter configuration equipment under test and the interface of testing equipment are supported.
Said base band data modular converter also is used for:
Carry out confirming the agreement that the interface of equipment under test and testing equipment is supported respectively according to configuration information before the base band data conversion.
8. equipment as claimed in claim 6 is characterized in that, said control and synchronization module also are used for:
Carry out synchronously through the synchrodata in the base band data of radio base band interface module reception according to the base band data modular converter; Or
Carry out synchronously according to the synchronizing signal of receiving.
9. like the arbitrary described equipment of claim 1～5, it is characterized in that the signal that transmits between said equipment to be tested and the said baseband interconnection equipment is a baseband digital signal; And/or
The signal that transmits between said testing equipment and the said baseband interconnection equipment is a baseband digital signal.
10. a baseband interconnection equipment is characterized in that, this equipment comprises:
The base band data modular converter; Be used for to convert to through the base band data that the internal interface module receives the interface protocol of opposite equip.; And through the base band data of external interface module after opposite equip. sends conversion; And the interface protocol that will convert internal support to, and through the base band data after the internal interface module transmission conversion through the base band data that external interface module receives from opposite equip.;
External interface module is used between baseband interconnection equipment and opposite equip., transmitting the base band data of transmission.
11. equipment as claimed in claim 10 is characterized in that, if said baseband interconnection equipment is equipment under test, said opposite equip. is a testing equipment, and said external interface module is a test baseband interface module;
If said baseband interconnection equipment is testing equipment, said opposite equip. is an equipment under test, and said external interface module is the radio base band interface module.
12. equipment as claimed in claim 11 is characterized in that, said test baseband interface module comprises:
Test base band output interface module is used for giving testing equipment with the transfer of data of base band data modular converter;
Test base band input interface module is used for giving the base band data modular converter with the transfer of data of testing equipment.
13. equipment as claimed in claim 11 is characterized in that, the agreement of said radio base band interface module support comprises:
The TD SDMA Long Term Evolution digital mobile cellular telecommunication net distributed base station IR interface protocol of TD SDMA digital mobile cellular telecommunication net distributed base station IR interface protocol, common public radio interface CPRI agreement, the CCSA of CCSA definition, the base band of portable terminal and the interface protocol between the radio frequency IC and the PCIe interface that connects the DU equipment of C-RAN;
The agreement of said test baseband interface module support comprises: small computer system interface SCSI agreement and Z-DOK+ interface protocol.
14. equipment as claimed in claim 10 is characterized in that, said base band data modular converter specifically is used for:
According to conversion parameter; To convert the interface protocol of opposite equip. through the base band data that the internal interface module receives to; And, will convert the interface protocol of internal support to through the base band data that external interface module receives from opposite equip. according to said conversion parameter.
15. equipment as claimed in claim 14 is characterized in that, if said baseband interconnection equipment is equipment under test, and said external interface module is the SCSI agreement;
Said base band data modular converter specifically is used for:
According to conversion parameter, resolve C&M passage and data in the S passage and I/Q data in the base band data that receives through the internal interface module; According to conversion parameter, the I/Q data are divided into a plurality of groups, wherein every group of data belong to same radio-frequency channel; To one group of data, these group data are sent through interface corresponding in the external interface module; And
According to conversion parameter, will form the I/Q data through the base band data that each interface in the external interface module is received; Fill the data in C&M passage and the S passage according to CPRI protocol data form; And the data in C&M passage and the S passage and I/Q data are sent through the internal interface module.
16. equipment as claimed in claim 14 is characterized in that, if said baseband interconnection equipment is testing equipment, and said external interface module is the CPRI agreement;
Said base band data modular converter specifically is used for:
According to conversion parameter, resolve C&M passage and data in the S passage and I/Q data in the base band data that receives through external interface module; According to conversion parameter, the I/Q data are divided into a plurality of groups, wherein every group of data belong to same radio-frequency channel; To one group of data, these group data are sent through interface corresponding in the internal interface module; And
According to conversion parameter, will form the I/Q data through the base band data that each interface in the internal interface module is received; Fill the data in C&M passage and the S passage according to CPRI protocol data form; And the data in C&M passage and the S passage and I/Q data are sent through external interface module.
17., it is characterized in that said equipment also comprises like the arbitrary described equipment of claim 14～16:
Control and synchronization module are used for according to configuration information, are said base band data modular converter configuration transitions parameter.
18. equipment as claimed in claim 17 is characterized in that, if said baseband interconnection equipment is equipment under test, said control and synchronization module also are used for:
According to configuration information, the agreement of supporting for the interface of said base band data modular converter configuration testing equipment;
If said baseband interconnection equipment is testing equipment, said control and synchronization module also are used for:
According to configuration information, dispose the agreement of the interface support of equipment under test for said base band data modular converter.
19. equipment as claimed in claim 17 is characterized in that, said control and synchronization module also are used for:
Carry out synchronously through the synchrodata in the base band data of radio base band interface module reception according to the base band data modular converter; Or
Carry out synchronously according to the synchronizing signal of receiving.
20. a method of carrying out the baseband digital signal switching is characterized in that this method comprises:
Convert the base band data that receives to the interface protocol of testing equipment and the base band data after testing equipment is sent conversion from equipment under test; And
Convert the base band data that comes self-testing device that receives to the interface protocol of equipment under test and the base band data after equipment under test sends conversion.
21. method as claimed in claim 20 is characterized in that, the interface protocol that the said base band data from equipment under test that will receive converts testing equipment to comprises:
According to conversion parameter, will convert the agreement that the testing equipment interface is supported to from the base band data of equipment under test;
The interface protocol that the said base band data that comes self-testing device that will receive converts equipment under test to comprises:
According to said conversion parameter, the base band data of self-testing device converts the agreement that the equipment under test interface is supported in the future.
22. method as claimed in claim 21 is characterized in that, the agreement of said radio base band interface module support comprises:
TD-LTE IR interface protocol, the DigRF interface protocol of TD-IR agreement, CPRI agreement, CCSA definition and the PCIe interface that connects the DU equipment of C-RAN;
The agreement of said test baseband interface module support comprises: scsi interface agreement and Z-DOK+ interface protocol.
23. method as claimed in claim 22 is characterized in that, the interface protocol of said equipment under test is the CPRI agreement, and the supported protocol of said testing equipment interface is the SCSI agreement;
The interface protocol that the said base band data from equipment under test that will receive converts testing equipment to comprises:
According to conversion parameter, resolve to receive from the C&M passage in the base band data of equipment under test and data in the S passage and I/Q data;
According to conversion parameter, the I/Q data are divided into a plurality of groups, wherein every group of data belong to same radio-frequency channel;
Said base band data after testing equipment is sent conversion comprises:
Every group of data are sent to testing equipment respectively.
24. method as claimed in claim 22 is characterized in that, the interface protocol of said equipment under test is the CPRI agreement, and the supported protocol of said testing equipment interface is the SCSI agreement;
The interface protocol that the said base band data that comes self-testing device that will receive converts equipment under test to comprises:
According to conversion parameter, the multi-group data of receiving that comes self-testing device is formed the I/Q data;
Fill the data in C&M passage and the S passage according to CPRI protocol data form;
Said base band data after equipment under test sends conversion comprises:
Data in C&M passage and the S passage and I/Q data are sent to equipment under test.
25., it is characterized in that this method also comprises like the arbitrary described equipment of claim 20～24:
Carry out synchronously from the synchrodata in the base band data of equipment under test according to what receive; Or
Carry out synchronously according to the synchronizing signal of receiving.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210050861.1A CN102594829B (en) | 2012-02-29 | 2012-02-29 | Baseband switching equipment and switching method thereof |
| PCT/CN2013/071870 WO2013127321A1 (en) | 2012-02-29 | 2013-02-26 | Base band switching device and switching method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210050861.1A CN102594829B (en) | 2012-02-29 | 2012-02-29 | Baseband switching equipment and switching method thereof |
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| CN102594829A true CN102594829A (en) | 2012-07-18 |
| CN102594829B CN102594829B (en) | 2014-08-06 |
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| CN (1) | CN102594829B (en) |
| WO (1) | WO2013127321A1 (en) |
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| WO2013127321A1 (en) * | 2012-02-29 | 2013-09-06 | 电信科学技术研究院 | Base band switching device and switching method thereof |
| CN104994090A (en) * | 2015-06-29 | 2015-10-21 | 上海华为技术有限公司 | Data frame conversion method and device, communication node and communication system |
| EP3151607A4 (en) * | 2014-05-29 | 2017-11-01 | Datang Mobile Communications Equipment Co., Ltd. | Fpga-based self-adaption method and apparatus for remote radio unit (rru) interface protocol |
| CN109257117A (en) * | 2018-09-26 | 2019-01-22 | 郑州云海信息技术有限公司 | A kind of common public radio interface test method and system |
| CN110062437A (en) * | 2018-01-19 | 2019-07-26 | 大唐移动通信设备有限公司 | A kind of radio frequency remote unit RRU quickly accesses method and the base station of base station |
| CN113395715A (en) * | 2020-03-12 | 2021-09-14 | 中移(成都)信息通信科技有限公司 | Method, device and equipment for testing physical layer of base station and storage medium |
| CN115001600A (en) * | 2022-05-30 | 2022-09-02 | Oppo广东移动通信有限公司 | Method, system and equipment for testing radio frequency emission system |
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| WO2013127321A1 (en) * | 2012-02-29 | 2013-09-06 | 电信科学技术研究院 | Base band switching device and switching method thereof |
| EP3151607A4 (en) * | 2014-05-29 | 2017-11-01 | Datang Mobile Communications Equipment Co., Ltd. | Fpga-based self-adaption method and apparatus for remote radio unit (rru) interface protocol |
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| CN109257117A (en) * | 2018-09-26 | 2019-01-22 | 郑州云海信息技术有限公司 | A kind of common public radio interface test method and system |
| CN113395715A (en) * | 2020-03-12 | 2021-09-14 | 中移(成都)信息通信科技有限公司 | Method, device and equipment for testing physical layer of base station and storage medium |
| CN115001600A (en) * | 2022-05-30 | 2022-09-02 | Oppo广东移动通信有限公司 | Method, system and equipment for testing radio frequency emission system |
Also Published As
| Publication number | Publication date |
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| WO2013127321A1 (en) | 2013-09-06 |
| CN102594829B (en) | 2014-08-06 |
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