CN201657019U - Dynamic detecting device of parameters of CMMB timeslot - Google Patents
Dynamic detecting device of parameters of CMMB timeslot Download PDFInfo
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- CN201657019U CN201657019U CN2009201600534U CN200920160053U CN201657019U CN 201657019 U CN201657019 U CN 201657019U CN 2009201600534 U CN2009201600534 U CN 2009201600534U CN 200920160053 U CN200920160053 U CN 200920160053U CN 201657019 U CN201657019 U CN 201657019U
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Abstract
The utility model discloses a parallel-testing device of characteristic parameters of a business timeslot, comprising an RF radio frequency processing unit, an A/D analog-to-digital conversion unit, a control timeslot unit, a business timeslot unit, a data storage unit and a data display unit, wherein the control timeslot unit consists of an OFDM demodulation module 0, a descrambling module 0, a de-constellation-mapping module 0, a de-interleaving module 0, an LDPC decoding module 0, an RS decoding module 0, a control timeslot analysis module and a control channel parameter configuration module; and the business timeslot unit consists of an OFDM demodulation module n, a descrambling module n, a de-constellation-mapping module n, a data cache module, a de-interleaving module n, an LDPC decoding module n, an RS decoding module n and a business channel parameter configuration module. Under the premise of not increasing the cost of hardware modules, the parallel-testing device realizes simultaneous decoding and measurement of a plurality of businesses by addition of the data cache module among the modules and a reasonable control solution, thus improving the detecting efficiency of system performances.
Description
Technical field
The present invention relates to a kind of mobile digital multimedia broadcast system.Be particularly related to CMMB minislot parameter device for dynamically detecting.
Background technology
In mobile digital multimedia broadcast system, comprise some sub-districts or the wireless zone that cover a known geographical area, the transmitter and the mobile receiver of sub-district are set up wireless communication link, and the communication link that passes through to be set up sends digital multimedia broadcasting signal by transmitter to mobile receiving device.The construction of mobile digital multi-media broadcast network and optimization are exactly in order to provide the service of high-quality audio/video and data broadcast service to the user.And in order to guarantee the quality of network, need the various parameters of network be tested, confirm every performance index of network, for networking and optimization provide basic data.
For upper-layer service provides broadcast channel, the physical layer logic channel is divided into control logic channel (CLCH) and service logical channels (SLCH) to the broadcast channel physical layer of CMMB by physical layer logic channel (PLCH).The control logic channel is used to carry the broadcast system control information, and service logical channels is used to carry broadcasting service.Physical layer has a fixing control logic channel, 40 time slots are arranged in each physical layer bandwidth, each service logical channels takies an integer time slot, that is to say, sending in the frame (Frame) of digital multimedia broadcasting signal to mobile communication equipment of the broadcast system of CMMB by transmitter, 40 time slots (Slots) are arranged, be used to transmit several Service (programs, also can be called business), each program (Service) is different according to modulation and coded system, can take several Slots, be CMMB SLOT schematic diagram as Fig. 1.
Different with other most of Digital Television, in order to economize on electricity, CMMB has adopted time division way to follow the tracks of a TV programme, as shown in Figure 2, in a frame, only need the time slot that it is occupied to selected program to receive, for example, for program receiving 1, when program 1, when occupying 3,4,5 time slots, we only need 3,4, and 5 time slots receive, in all the other times, the reception of radio frequency is in holding state.
In the CMMB networking and optimizing, cover, the important indicator that the audio/video quality of reception etc. are estimated, can with BER (error rate), believe/make an uproar than etc. parameter test and assess, in order to analyze the transmission characteristic of whole system, need test the physical characteristic parameter of all time slots, like this, require a kind of testing apparatus that the function that the parameter of each service is measured/followed the tracks of must be arranged.
At present in mobile digital multimedia broadcast system, two kinds of solutions are arranged, a kind of is in cdma system, because of each Service transmits in the section at one time, and, each Service has identical modulation system, and as long as Service of test just can test out the situation of other Service, as shown in Figure 3.
Another kind of scheme is, in time-sharing format, can only test separately the time slot that contains video, audio frequency, data channel respectively, and as shown in Figure 4, test philosophy figure as shown in Figure 5.
Wherein, control time slot unit receives the radiofrequency signal after the A/D analog-to-digital conversion, when the control channel parameter configuration module is carried out parameter configuration to baseband processing module, de-interleaving block, demultiplexing module, after passing through the processing of baseband processing module, de-interleaving block, demultiplexing module successively, the data of output control time slot; Control time slot data are resolved through control time slot parsing module, the time slot that obtains professional m (natural number of m 〉=0) is formed information, time slot configuration information, is reached the shared timeslot number rate information of time slot modulation system information, professional m of professional m, and these information are sent to the business time-slot unit; The data message that the Traffic Channel parameter configuration module of business time-slot unit is resolved according to control time slot parsing module, baseband processing module in the business time-slot unit, de-interleaving block, demultiplexing module are carried out the business time-slot parameter configuration, simultaneously, the business time-slot unit receives and handles each professional radiofrequency signal of hanging oneself after the A/D analog-to-digital conversion respectively; Each professional radiofrequency signal obtains test data through the processing of baseband processing module, de-interleaving block, demultiplexing module successively through A/D data after A signal, and (test data comprises the data of the fixedly time slot of professional m is analyzed, as Block Error Rate, the error rate etc.), test data can show through display unit, also can be stored in the memory cell, so that at any time test data is called.
More than be that each business takies under the situation of a time slot, a business (time slot that contains the professional m of video or audio frequency or data channel) can only handled in the section sometime in the business time-slot unit.So existing testing apparatus and method of testing can only independently be tested the time slot that contains video, audio frequency, data channel respectively.
The CMMB system has adopted the OFDM mode, 52 symbols are arranged in each time slot, sending signal sends through after the band spectrum modulation, because the CMMB system is different in the modulation system of each time slot, modulation system is based on Service, like this, each Service takies different time slots, so, it has different modulation systems the Service that is transmitted, in order to analyze the transmission characteristic of whole system, need simultaneously the physical characteristic parameter of all time slots to be carried out concurrent testing, present scheme can't address this problem.
The utility model content
In order to address the above problem, improve the efficient that systematic function is detected, the utility model provides a kind of device that can carry out concurrent testing simultaneously to the physical characteristic parameter (as: planisphere MER, EVM, POWER, frequency deviation) of all business time-slots in each frame;
Simultaneously in order to save cost, the utility model is also by improving above-mentioned testing apparatus, provide a kind of can be simultaneously to physical characteristic parameter (as: planisphere MER, the EVM of all business time-slots in each frame, POWER, frequency deviation) carries out the device of concurrent testing.
A kind of CMMB minislot parameter device for dynamically detecting, comprise: RF RF processing unit, A/D AD conversion unit, control time slot unit, business time-slot unit, data storage cell, data display unit, it is characterized in that, control time slot unit by OFDM demodulation module 0, descrambling module 0, separate constellation mapping module 0, de-interleaving block 0, LDPC decoder module 0, RS decoder module 0, control time slot parsing module and control channel parameter configuration module and form; The business time-slot unit by OFDM demodulation module n, descrambling module n, separate constellation mapping module n, data cache module, de-interleaving block n, LDPC decoder module n, RS decoder module n, Traffic Channel parameter configuration module and form; Described control time slot unit receives the signal after the A/D analog-to-digital conversion, the control channel parameter configuration module to OFDM demodulation module 0, descrambling module 0, separate constellation mapping module 0, de-interleaving block 0, LDPC decoder module 0, RS decoder module 0 and control under the configuration of minislot parameter, with signal successively through OFDM demodulation module 0, descrambling module 0, separate the processing of constellation mapping module 0, de-interleaving block 0, LDPC decoder module 0, RS decoder module 0 after, the data of output control time slot; Described control time slot data are resolved through control time slot parsing module, the time slot that obtains professional m is formed information, time slot configuration information, and the LDPC/RS encoding rate information of the shared time slot of time slot modulation system information, the professional m of professional m, and these information is sent to the Traffic Channel parameter configuration module of business time-slot unit; The data message that the Traffic Channel parameter configuration module of described business time-slot unit is resolved according to control time slot parsing module, to OFDM demodulation module n, descrambling module n in the business time-slot unit, separate the parameter configuration that constellation mapping module n, data cache module, de-interleaving block n, LDPC decoder module n, RS decoder module n carry out business time-slot, simultaneously, the business time-slot unit receives and handles the signal of hanging oneself after the A/D analog-to-digital conversion respectively by OFDM demodulation module n; Described signal after the A/D analog-to-digital conversion is successively through OFDM demodulation module n, descrambling module n, separate constellation mapping module n, data cache module, de-interleaving block n, LDPC decoder module n, the processing of RS decoder module n, obtain the test data of each time slot parallel processing, described data cache module is connected in separates between constellation mapping module n and the de-interleaving block n, be subjected to the control of Traffic Channel demodulation parameter configuration module, make at a time slot in the processing time, parallel processing occupies the business of two time slots, and decoding and measuring when realizing a plurality of business
Wherein, m 〉=0, m is certain business of receiving feature parameter testing.
Described data cache module, receive the control signal of Traffic Channel demodulation parameter configuration module, make the business datum signal of this time slot pass through de-interleaving block n successively, LDPC decoder module n, before RS decoder module n disposes, stop the business datum signal of this time slot time slot afterwards to take this resource module, and the time slot services data-signal after this time slot passed through OFDM demodulation module n successively, descrambling module n, after separating constellation mapping module n, be temporarily stored in data cache module, pass through de-interleaving block n successively up to this time slot services data-signal, LDPC decoder module n, till RS decoder module n disposes.
A kind of CMMB minislot parameter device for dynamically detecting, comprise the RF RF processing unit, the A/D AD conversion unit, control and business time-slot unit, data storage cell, data display unit, it is characterized in that, described control and business time-slot unit comprise: the OFDM demodulation module, descrambling module, separate the constellation mapping module, de-interleaving block, the LDPC decoder module, the RS decoder module, control time slot parsing module, control and Traffic Channel parameter configuration module, between RS decoder module and control time slot parsing module, be connected a time slot judge module, be used to judge that from the data of RS decoder module output be control time slot data or business time-slot data, when the data of RS decoder module output are control time slot data, control time slot data are resolved through control time slot parsing module, the time slot that obtains professional m is formed information, time slot configuration information, and the time slot modulation system information of professional m, the LDPC/RS encoding rate information of the time slot that professional m is shared, and send these information to control and Traffic Channel parameter configuration module; The data message that control and Traffic Channel parameter configuration module are resolved according to control time slot parsing module, to OFDM demodulation module, descrambling module in control and the business time-slot unit, separate constellation mapping module, data cache module, de-interleaving block, LDPC decoder module, RS decoder module and carry out the configuration of business time-slot parameter, simultaneously, control and business time-slot unit receive and handle the signal of hanging oneself after the A/D analog-to-digital conversion respectively by the OFDM demodulation module; Successively through OFDM demodulation module, descrambling module, the processing of separating constellation mapping module, data cache module, de-interleaving block, LDPC decoder module, RS decoder module, obtain the test data of each time slot parallel processing through A/D data after A signal; When the time slot judge module judges that the data of RS decoder module output are the business time-slot data, can be to the concurrent testing of business time-slot characterisitic parameter of output, described data cache module is connected in separates between constellation mapping module n and the de-interleaving block n, be subjected to the control of Traffic Channel demodulation parameter configuration module, make at a time slot in the processing time, parallel processing occupies the business of two time slots, and decoding and measuring when realizing a plurality of business
Wherein, m 〉=0, m is certain business of receiving feature parameter testing.
Described data cache module, receive the control signal of Traffic Channel demodulation parameter configuration module, make the business datum signal of this time slot pass through de-interleaving block successively, the LDPC decoder module, before the RS decoder module disposes, stop the business datum signal of this time slot time slot afterwards to take this resource module, make this time slot time slot services data-signal afterwards pass through the OFDM demodulation module successively, descrambling module, after separating the constellation mapping module, be temporarily stored in the data cache module, pass through de-interleaving block successively up to this time slot services data-signal, the LDPC decoder module, till the RS decoder module disposes.
Main feature of the present utility model is under the prerequisite that does not increase the hardware module cost, to decode and measurement when intermodular data cache module and rational controlling schemes realize a plurality of business by increasing.
Description of drawings
The present invention is described in further detail below in conjunction with drawings and embodiments
Fig. 1 CMMB SLOT schematic diagram;
The business time-slot that Fig. 2 CMMB receives occupies schematic diagram;
The professional transmission of Fig. 3 cdma system schematic diagram;
Fig. 4 CMMB business time-slot is tested schematic diagram separately;
Fig. 5 prior art testing apparatus schematic diagram;
Fig. 6 the utility model testing apparatus one;
The time relationship of a plurality of time slot parallel processings of Fig. 7;
Fig. 8 the utility model testing apparatus two.
Embodiment
Implement and understand the utility model for the ease of persons skilled in the art, below respectively in conjunction with the realization of above-mentioned this testing apparatus of annexed drawings set forth.
In order to realize a kind of device one that can carry out concurrent testing simultaneously to all business time-slots in each frame, the utility model is on the basis of device shown in Figure 5, has done and has improved as shown in Figure 6.
This testing apparatus comprises: RF RF processing unit, A/D AD conversion unit, control time slot unit, business time-slot unit, data storage cell, data display unit; Wherein, control time slot unit by OFDM demodulation module 0, descrambling module 0, separate constellation mapping module 0, de-interleaving block 0, LDPC decoder module 0, RS decoder module 0, control time slot parsing module and control channel parameter configuration module and form; The business time-slot unit by OFDM demodulation module n, descrambling module n, separate constellation mapping module n, data cache module, de-interleaving block n, LDPC decoder module n, RS decoder module n, and the Traffic Channel parameter configuration module form; Control time slot unit receives the radiofrequency signal after the A/D analog-to-digital conversion, the control channel parameter configuration module to OFDM demodulation module 0, descrambling module 0, separate constellation mapping module 0, de-interleaving block 0, LDPC decoder module 0, RS decoder module 0 and control under the configuration of minislot parameter, successively through OFDM demodulation module 0, descrambling module 0, separate the processing of constellation mapping module 0, de-interleaving block 0, LDPC decoder module 0, RS decoder module 0 after, the data of output control time slot; Control time slot data are resolved through control time slot parsing module, obtain professional m (m 〉=0, be natural number) time slot form information, time slot configuration information, and the LDPC/RS encoding rate information of the shared time slot of time slot modulation system information, the professional m of professional m, and these information are sent to the Traffic Channel parameter configuration module of business time-slot unit; The data message that the Traffic Channel parameter configuration module of business time-slot unit is resolved according to control time slot parsing module, to OFDM demodulation module n, descrambling module n in the business time-slot unit, separate the parameter configuration that constellation mapping module n, data cache module, de-interleaving block n, LDPC decoder module n, RS decoder module n carry out business time-slot, simultaneously, the business time-slot unit receives and handles each professional radiofrequency signal of hanging oneself after the A/D analog-to-digital conversion respectively by OFDM demodulation module n; Each business through A/D data after A signal successively through OFDM demodulation module n, descrambling module n, the processing of separating constellation mapping module n, data cache module, de-interleaving block n, LDPC decoder module n, RS decoder module n, (test data comprises the data of the fixedly time slot of professional m is analyzed to obtain the test data of each time slot parallel processing, as Block Error Rate, the error rate etc.), test data can show through display unit, also can be stored in the memory cell, so that at any time test data is called.Wherein, when same business takies different time-gap, or each traffic handling time is during greater than a time slot, in order to guarantee at a time slot in the processing time, parallel processing occupies the business of two time slots, and decoding and measuring when realizing a plurality of business, separating data cache module of increase between constellation mapping module n and the de-interleaving block n, data cache module is subjected to the control of Traffic Channel demodulation parameter configuration module, passing through de-interleaving block n successively so that make the business datum of this time slot, LDPC decoder module n, before RS decoder module n disposes, stop the business datum of this time slot time slot afterwards to take this resource module, and the time slot services data after this time slot are being passed through OFDM demodulation module n successively, descrambling module n, after separating constellation mapping module n processing, be temporarily stored in data cache module, pass through de-interleaving block n successively up to this time slot services data, LDPC decoder module n, till RS decoder module n disposes.This testing apparatus also provides the measurement that each is comprised the Service of a plurality of time slots simultaneously, and can Dynamic Selection measure all relevant time slots of each Service, also can specify wherein the part time slot to measure as required.
Below by Fig. 7, further specify the time relationship of a plurality of time slot parallel processings, the module that vertical line is separated by in the utility model is unique, is the module that is subjected to the control of Traffic Channel demodulation parameter.The module that the present invention requires to be separated by among Fig. 8 in the vertical line disposes in a time slot, as require deinterleaving, separate LDPC reconciliation RS and finish in the time of a time slot TSN (natural number of N 〉=0), this module can continue decoding when the data of next time slot TSN+1 arrive like this.The module in the vertical line of being separated by in data cache module, is given next module in the vertical line of being separated by with storage.
In order to save the cost of hardware module, another embodiment of the utility model as shown in Figure 8, a kind of decoding and the device measured when realizing a plurality of business, this testing apparatus is on the basis of testing apparatus shown in Figure 6, the merging of time slot unit and business time-slot unit be will control and control and business time-slot unit become, realize sharing of hardware module, its hardware module of sharing comprises: the OFDM demodulation module, descrambling module, separate the constellation mapping module, de-interleaving block, the LDPC decoder module, the RS decoder module, and the merging of control channel parameter configuration module and Traffic Channel parameter configuration module become control and Traffic Channel parameter configuration module, increased a time slot judge module at RS decoder module and control time slot parsing module simultaneously, be used to judge that from the data of RS decoder module output be control time slot data or business time-slot data.When the data of RS decoder module output are control time slot data, control time slot data are resolved through control time slot parsing module, obtain professional m (m 〉=0, be natural number) time slot form information, time slot configuration information, and the LDPC/RS encoding rate information of the shared time slot of time slot modulation system information, the professional m of professional m, and send these information to control and Traffic Channel parameter configuration module; The data message that control and Traffic Channel parameter configuration module are resolved according to control time slot parsing module, to OFDM demodulation module, descrambling module in control and the business time-slot unit, separate constellation mapping module, data cache module, de-interleaving block, LDPC decoder module, RS decoder module and carry out the configuration of business time-slot parameter, simultaneously, control and business time-slot unit receive and handle each professional radiofrequency signal of hanging oneself after the A/D analog-to-digital conversion respectively by the OFDM demodulation module; Each professional radiofrequency signal through A/D data after A signal successively through OFDM demodulation module, descrambling module, the processing of separating constellation mapping module, data cache module, de-interleaving block, LDPC decoder module, RS decoder module, (test data comprises the data of the fixedly time slot of professional m is analyzed to obtain the test data of each time slot parallel processing, as Block Error Rate, the error rate etc.); When the time slot judge module judges that the data of RS decoder module output are the business time-slot data, can test the business time-slot data of output, test data can show through display unit, also can be stored in the memory cell, so that at any time test data is called.Wherein, when same business takies different time-gap, or each traffic handling time is during greater than a time slot, in order to guarantee at a time slot in the processing time, the business of two time slots of parallel processing, and decoding and measuring when realizing a plurality of business, separating a data cache module that increases between constellation mapping module and the de-interleaving block, the control of the controlled and Traffic Channel demodulation parameter configuration module of data cache module, so that the business datum of this time slot is being passed through de-interleaving block successively, the LDPC decoder module, before the RS decoder module disposes, stop the business datum of this time slot time slot afterwards to take this resource module, and the time slot services data after this time slot are being passed through the OFDM demodulation module successively, descrambling module, after separating the constellation mapping resume module, be temporarily stored in the data cache module, pass through de-interleaving block successively up to this time slot services data, the LDPC decoder module, till the RS decoder module disposes.
Main feature of the present utility model is under the prerequisite that does not increase the hardware module cost, to decode and measurement when intermodular data cache module and rational control program realize a plurality of business by increasing.
Although will be specifically described the present invention as an example of the ofdm system that is applied to CMMB example in the superincumbent narration, one of ordinary skill in the art knows that the present invention can be applied among the CDMA and other similar DMB wireless communication systems of CMMB.
Claims (6)
1. CMMB minislot parameter device for dynamically detecting, comprise: RF RF processing unit, A/D AD conversion unit, control time slot unit, business time-slot unit, data storage cell, data display unit, it is characterized in that, control time slot unit by OFDM demodulation module 0, descrambling module 0, separate constellation mapping module 0, de-interleaving block 0, LDPC decoder module 0, RS decoder module 0, control time slot parsing module and control channel parameter configuration module and form; The business time-slot unit by OFDM demodulation module n, descrambling module n, separate constellation mapping module n, data cache module, de-interleaving block n, LDPC decoder module n, RS decoder module n, Traffic Channel parameter configuration module and form; Described control time slot unit receives the signal after the A/D analog-to-digital conversion, the control channel parameter configuration module to OFDM demodulation module 0, descrambling module 0, separate constellation mapping module 0, de-interleaving block 0, LDPC decoder module 0, RS decoder module 0 and control under the configuration of minislot parameter, with signal successively through OFDM demodulation module 0, descrambling module 0, separate the processing of constellation mapping module 0, de-interleaving block 0, LDPC decoder module 0, RS decoder module 0 after, the data of output control time slot; Described control time slot data are resolved through control time slot parsing module, the time slot that obtains professional m is formed information, time slot configuration information, and the LDPC/RS encoding rate information of the shared time slot of time slot modulation system information, the professional m of professional m, and these information is sent to the Traffic Channel parameter configuration module of business time-slot unit; The data message that the Traffic Channel parameter configuration module of described business time-slot unit is resolved according to control time slot parsing module, to OFDM demodulation module n, descrambling module n in the business time-slot unit, separate the parameter configuration that constellation mapping module n, data cache module, de-interleaving block n, LDPC decoder module n, RS decoder module n carry out business time-slot, simultaneously, the business time-slot unit receives and handles the signal of hanging oneself after the A/D analog-to-digital conversion respectively by OFDM demodulation module n; Described signal after the A/D analog-to-digital conversion is successively through OFDM demodulation module n, descrambling module n, separate constellation mapping module n, data cache module, de-interleaving block n, LDPC decoder module n, the processing of RS decoder module n, obtain the test data of time slot parallel processing, described data cache module is connected in separates between constellation mapping module n and the de-interleaving block n, be subjected to the control of Traffic Channel demodulation parameter configuration module, make at a time slot in the processing time, parallel processing occupies the business of two time slots, and decoding and measuring when realizing a plurality of business
Wherein, m 〉=0, m is certain business of receiving feature parameter testing.
2. the device of a kind of business time-slot characterisitic parameter concurrent testing according to claim 1, it is characterized in that described data cache module, receive the control signal of Traffic Channel demodulation parameter configuration module, make the business datum signal of this time slot pass through de-interleaving block n successively, LDPC decoder module n, before RS decoder module n disposes, stop the business datum signal of this time slot time slot afterwards to take this resource module, and the time slot services data-signal after this time slot passed through OFDM demodulation module n successively, descrambling module n, after separating constellation mapping module n, be temporarily stored in data cache module, pass through de-interleaving block n successively up to this time slot services data-signal, LDPC decoder module n, till RS decoder module n disposes.
3. the device of a kind of business time-slot characterisitic parameter concurrent testing according to claim 1 and 2, it is characterized in that, described testing apparatus, under the control of Traffic Channel demodulation parameter configuration module, the measurement that each is comprised the business of a plurality of time slots can be provided, and can Dynamic Selection measure each professional all relevant time slot, also can specify wherein the part time slot to measure as required.
4. CMMB minislot parameter device for dynamically detecting, comprise the RF RF processing unit, the A/D AD conversion unit, control and business time-slot unit, data storage cell, data display unit, it is characterized in that, described control and business time-slot unit comprise: the OFDM demodulation module, descrambling module, separate the constellation mapping module, de-interleaving block, the LDPC decoder module, the RS decoder module, control time slot parsing module, control and Traffic Channel parameter configuration module, between RS decoder module and control time slot parsing module, be connected a time slot judge module, be used to judge that from the data of RS decoder module output be control time slot data or business time-slot data, when the data of RS decoder module output are control time slot data, control time slot data are resolved through control time slot parsing module, the time slot that obtains professional m is formed information, time slot configuration information, and the time slot modulation system information of professional m, the LDPC/RS encoding rate information of the time slot that professional m is shared, and send these information to control and Traffic Channel parameter configuration module; The data message that control and Traffic Channel parameter configuration module control time slot parsing module are resolved, to OFDM demodulation module, descrambling module in control and the business time-slot unit, separate constellation mapping module, data cache module, de-interleaving block, LDPC decoder module, RS decoder module and carry out the configuration of business time-slot parameter, simultaneously, control and business time-slot unit receive and handle the signal of hanging oneself after the A/D analog-to-digital conversion respectively by the OFDM demodulation module; Successively through OFDM demodulation module, descrambling module, the processing of separating constellation mapping module, data cache module, de-interleaving block, LDPC decoder module, RS decoder module, obtain the test data of time slot parallel processing through A/D data after A signal; When the time slot judge module judges that the data of RS decoder module output are the business time-slot data, can be to the concurrent testing of business time-slot characterisitic parameter of output, described data cache module is connected in separates between constellation mapping module n and the de-interleaving block n, be subjected to the control of Traffic Channel demodulation parameter configuration module, make at a time slot in the processing time, parallel processing occupies the business of two time slots, and decoding and measuring when realizing a plurality of business
Wherein, m 〉=0, m is certain business of receiving feature parameter testing.
5. the device of a kind of business time-slot characterisitic parameter concurrent testing according to claim 4, it is characterized in that, described data cache module, receive the control signal of Traffic Channel demodulation parameter configuration module, make the business datum signal of this time slot pass through de-interleaving block successively, the LDPC decoder module, before the RS decoder module disposes, stop the business datum signal of this time slot time slot afterwards to take this resource module, make this time slot time slot services data-signal afterwards pass through the OFDM demodulation module successively, descrambling module, after separating the constellation mapping module, be temporarily stored in the data cache module, pass through de-interleaving block successively up to this time slot services data-signal, the LDPC decoder module, till the RS decoder module disposes.
6. according to the device of claim 4 or 5 described a kind of business time-slot characterisitic parameter concurrent testings, it is characterized in that, described testing apparatus, under the control of Traffic Channel demodulation parameter configuration module, the measurement that each is comprised the business of a plurality of time slots can be provided, and can Dynamic Selection measure each professional all relevant time slot, also can specify wherein the part time slot to measure as required.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401641A (en) * | 2013-07-29 | 2013-11-20 | 武汉邮电科学研究院 | Descrambling method of placeholder y in LTE UCI coding information and system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401641A (en) * | 2013-07-29 | 2013-11-20 | 武汉邮电科学研究院 | Descrambling method of placeholder y in LTE UCI coding information and system |
| CN103401641B (en) * | 2013-07-29 | 2016-06-08 | 武汉邮电科学研究院 | Placeholder y de-scrambling method in LTE UCI coding information and system |
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