CN1905396A - Multi-path searching and energy measuring apparatus and receiver - Google Patents
Multi-path searching and energy measuring apparatus and receiver Download PDFInfo
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- CN1905396A CN1905396A CNA2006100618813A CN200610061881A CN1905396A CN 1905396 A CN1905396 A CN 1905396A CN A2006100618813 A CNA2006100618813 A CN A2006100618813A CN 200610061881 A CN200610061881 A CN 200610061881A CN 1905396 A CN1905396 A CN 1905396A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The invention is applied to wireless communication field, providing a multipath searching and energy measuring device and receiver. And the device comprises: plural searching units, each making coherent and noncoherent calculation on fore-stage input data according to upper- layer configured parameters and outputting calculated results; and a multipath selecting unit, arranging all calculated results by time- sharing and outputting one or plural paths obtained by each searching unit and corresponding energies. And it is simpler in hardware and can implement more flexible configuring modes and saves resources all the more. Additionally, it gives a certain help to reduce power consumption of user equipment.
Description
Technical field
The invention belongs to wireless communication field, relate in particular to a kind of Multipath searching and energy measuring apparatus and receiver.
Background technology
Code division multiple access (Code Division Multiple Access, CDMA) to have a capacity big for communication system, antijamming capability is strong, advantage such as good confidentiality and being widely used, the prerequisite that realizes above-mentioned premium properties is to guarantee that the pseudo noise code in local receiver pseudo noise code that produces and the signal that receives keeps strict synchronism.Multipath searching makes that the local pseudo noise code that produces of receiver can be with through the pseudo noise code maintenance in the signal that arrives receiver behind the different path delay synchronously.Multipath searching provides the deferred message of each paths for demodulation, if omission or false retrieval with reducing the performance of demodulation, will make demodulation normally not carry out when serious, therefore occupies very consequence in the design of receiver.
Fig. 1 shows the structural principle of typical receiver, and the radiofrequency signal that transmitter 11 sends arrives receivers 13 through multipath channel 12, and A/D modular converter 131 is converted to digital signal with analog baseband signal.Multipath searching and energy measurement module 132 detect the multipath signal propagation delay from the digital baseband data of A/D modular converter 131 outputs, positional information and the energy of exporting each active path use for subsequent module, keep synchronously with the pseudo noise code in the signal of adjusting the local pseudo noise code that produces and receiving.133 pairs of signals of Rake receiver demodulation module carry out processing such as descrambling and de-spreading, recover the raw information that transmitter 11 sends.
Energy measurement mainly is to Common Pilot Channel (Common Pilot Channel, CPICH) carry out, the demodulation CPICH of elder generation channel obtains the multipath energy of the base band of CPICH channel, then the base band energy is carried out the power that the mathematics conversion obtains each chip of the CPICH of antenna connector place.It is similar substantially wherein CPICH to be carried out the process of the process of demodulation and Multipath searching, therefore on hardware is realized usually with Multipath searching and the multiplexing same set of hardware of these two functional modules of energy measurement, as shown in Figure 2.
At present, the window width of Multipath searching and energy measurement all is fixed as 192 chips (chip), and when soft handover, because a plurality of sub-districts are arranged, if the Multipath searching in turn of 192 chip window widths is carried out in each sub-district, excessive cycle influences systematic function.
Summary of the invention
The object of the present invention is to provide a kind of Multipath searching and energy measuring apparatus, be intended to solve exist in the prior art because the Multipath searching excessive cycle, influence the problem of systematic function.
Another object of the present invention is to provide a kind of receiver.
The present invention is achieved in that a kind of Multipath searching and energy measuring apparatus, and described device comprises:
A plurality of search units, each search unit is concerned with and incoherent computing to prime input data according to upper-layer configured parameters, the output operation result; And
A multipath selected cell is used for timesharing the operation result of described a plurality of search units output is sorted, and exports one or more the strongest path that each search unit obtains and the energy of described path correspondence.
Described upper-layer configured parameters comprises that search enables, main scrambler first phase, CPICH frame head position, search window original position be with respect to the skew of CPICH frame head, space-time emission diversity indication, coherent accumulation length and the noncoherent accumulation length of CPICH.
Described search unit comprises:
Status control module is used for producing operating control signal according to the residing state of system;
Scrambling generator, the main scrambler first phase, CPICH frame head position, the search window original position that are used for according to upper-layer configured produce scrambler;
Symbol coherent accumulation module is used for the base band data of input and the scrambler of scrambling generator output are carried out related operation, and the correlated results in the symbol is carried out coherent accumulation;
Full accumulator module is used for the symbol coherent accumulation value of prime symbol coherent accumulation module output being added up output I/Q two-way operation result according to the coherent accumulation length of configuration and the space-time emission diversity indication of CPICH;
The energy computing module, the I/Q two-way operation result that is used for full accumulator module is obtained carries out summed square, the output energy value; And
The noncoherent accumulation module is used for the energy value of energy computing module output is added up according to the noncoherent accumulation length that disposes.
Described symbol coherent accumulation module is by a plurality of relevant unit cascaded forming of adding up, the quantity y=m/x of the relevant unit that adds up, and m is the window width of each search unit, x is a clock rate.
The described relevant unit that adds up comprises:
The scrambler shift register is used to deposit x the scrambler that scrambling generator produces;
Data register is used to deposit I/Q two-way sampling number certificate;
Clock counter is used to produce the clock count value;
First MUX, the clock count value that is used for producing according to clock counter is selected the corresponding scrambler of output from the scrambler shift register;
A plurality of multipliers are used for the data that the scrambler and the data register of the output of first MUX are deposited are carried out multiple multiplication;
A plurality of adders are used for the multiple multiplication result of multiplier output being carried out adding up in the symbol, output intermediate object program;
The scratch-pad storage that adds up is used to store the intermediate object program of a plurality of adders outputs; And
Second MUX is used for selecting the current data accumulated of each adder from the scratch-pad storage that adds up.
The described relevant unit that adds up further comprises:
Concatenation module is input to the scratch-pad storage that adds up after being used for the intermediate object program of a plurality of adders output spliced.
Described state comprises Idle state, wait time slot head status, correlation behavior and waits for the ordering completion status;
When system reset, be in Idle state, receive to enter after the enabling signal and wait for the time slot head status; When any one time slot head of sub-district arrives, enter correlation behavior, carry out at this state that symbol adds up, adds up entirely, energy calculates and the noncoherent accumulation operation; Satisfy the coherent accumulation and noncoherent accumulation length of configuration when correlation length after, send the ordering request, enter simultaneously and wait for the ordering completion status; Finish ordering back according to current be that search operation or measuring operation enter and wait for the time slot head status or reenter Idle state.
A kind of receiver comprises Multipath searching and energy measuring apparatus, is used for detecting the multipath signal propagation delay from base band data, exports the positional information and the energy in one or more the strongest paths, and described device comprises:
A plurality of search units, each search unit is concerned with and incoherent computing to prime input data according to upper-layer configured parameters, the output operation result; And
A multipath selected cell is used for timesharing the operation result of described a plurality of search units output is sorted, and exports one or more the strongest path that each search unit obtains and the energy of described path correspondence.
Described upper-layer configured parameters comprises that search enables, main scrambler first phase, CPICH frame head position, search window original position be with respect to the skew of CPICH frame head, space-time emission diversity indication, coherent accumulation length and the noncoherent accumulation length of CPICH.
Described search unit comprises:
Status control module is used for producing operating control signal according to the residing state of system;
Scrambling generator, the main scrambler first phase, CPICH frame head position, the search window original position that are used for according to upper-layer configured produce scrambler;
Symbol coherent accumulation module is used for the base band data of input and the scrambler of scrambling generator output are carried out related operation, and the correlated results in the symbol is carried out coherent accumulation;
Full accumulator module is used for the symbol coherent accumulation value of prime symbol coherent accumulation module output being added up output I/Q two-way operation result according to the coherent accumulation length of configuration and the space-time emission diversity indication of CPICH;
The energy computing module, the I/Q two-way operation result that is used for full accumulator module is obtained carries out summed square, the output energy value; And
The noncoherent accumulation module is used for the energy value of energy computing module output is added up according to the noncoherent accumulation length that disposes.
Described symbol coherent accumulation module is by a plurality of relevant unit cascaded forming of adding up, the quantity y=m/x of the relevant unit that adds up, and m is the window width of each search unit, x is a clock rate.
The described relevant unit that adds up comprises:
The scrambler shift register is used to deposit x the scrambler that scrambling generator produces;
Data register is used to deposit I/Q two-way sampling number certificate;
Clock counter is used to produce the clock count value;
First MUX, the clock count value that is used for producing according to clock counter is selected the corresponding scrambler of output from the scrambler shift register;
A plurality of multipliers are used for the data that the scrambler and the data register of the output of first MUX are deposited are carried out multiple multiplication;
A plurality of adders are used for the multiple multiplication result of multiplier output being carried out adding up in the symbol, output intermediate object program;
The scratch-pad storage that adds up is used to store the intermediate object program of a plurality of adders outputs; And
Second MUX is used for selecting the current data accumulated of each adder from the scratch-pad storage that adds up.
Among the present invention, the hardware resource pool structure is adopted in Multipath searching and energy measurement, and the resource pool unit that a plurality of search window widths are the m chip lengths can form the various searchers of different window widths by any flexible dispatching of software, adapt to application scenario more widely, save power consumption of user equipment simultaneously.The coherent accumulation of each resource pool unit and noncoherent accumulation length also can freely dispose according to demand, and greater flexibility is provided.In correlation calculation unit, adopt the scrambler displacement to select the structure of cumulative data, under the suitable situation of operational capability, significantly reduced the quantity of adder.Simultaneously, support has been shortened the relevant stand-by period greatly from the related operation that any time slot head begins.
Description of drawings
Fig. 1 is the structure principle chart of receiver;
Fig. 2 is the structured flowchart of Multipath searching and energy measurement in the prior art;
Fig. 3 is the structure chart of Multipath searching provided by the invention and energy measuring apparatus;
Fig. 4 is the structure chart of search unit provided by the invention;
Fig. 5 is the control transformation schematic diagram of state machine provided by the invention;
Fig. 6 is a symbol coherent accumulation process schematic diagram provided by the invention;
Fig. 7 is the structure chart of symbol coherent accumulation module provided by the invention;
Fig. 8 is the structure chart of the relevant unit that adds up provided by the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage more clear,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
In the present invention, the structure of hardware resource pool is adopted in Multipath searching and energy measurement, a plurality of search window widths are the resource pool unit of m chip lengths can be by any flexible dispatching of software, form the various searchers of different window widths, adapt to application scenario more widely, save power consumption of user equipment simultaneously.
As shown in Figure 3, Multipath searching and energy measuring apparatus are made up of the individual independently search unit 31.0～31.n-1 of n, and the search window width of each search unit is a m chip, n 〉=1, m 〉=1, and n, m be integer, and the value of n and m can be adjusted according to different performance requirements.Each search unit can independently carry out the search of a sub-district to be measured, and also can carry out splicing between the window by software arrangements, forms the search or the measurement structure of different window widths.
The data of the shared prime input of n search unit, according to upper-layer configured parameters after finishing relevant and incoherent computing, the result be stored in separately noncoherent accumulation random access memory (Random AccessMemory, RAM) in.32 timesharing of multipath selected cell are sorted to the operation result of search unit output, export one or more the strongest path that each search unit obtains and the energy of path correspondence, (Central Processing Unit CPU) carries out subsequent treatment can to report CPU.The upper-layer configured parameter of input Multipath searching and energy measuring apparatus has the n cover, respectively corresponding search unit, comprise that search enables, main scrambler first phase, CPICH frame head position, search window original position be with respect to the skew of CPICH frame head, the space-time emission diversity of CPICH (Space Time Transmit Diversity, STTD) indication, coherent accumulation length and noncoherent accumulation length etc.
Multipath searching and energy measuring apparatus can (User Equipment, different conditions UE) be adjusted window width, realizes the more function selection according to subscriber equipment.Under UE is in connection status, the Multipath searching of 192 chip window widths is done in the search unit splicing that can to dispose 3 window widths be 64 chips, and the search unit that disposes 1 64 chip window width is in addition done measurement, because for energy measurement, usually only need littler window width can satisfy performance requirement, the window width of measuring is fixed as 192 chips, can cause the wasting of resources, suitable with existing scheme on the performance like this, can satisfy the search Testing requirement fully, and reduce the resource that is consumed when energy measurement is fixed as 192 chips.Simultaneously, be under standby or the paging state at most of the time UE, can not do search, and be used for doing the parallel measurement of n sub-district, can reduce Measuring Time, idle search unit can be turned off clock and save power consumption.Under the UE holding state, account for very big power consumption owing to measure, therefore reduce Measuring Time and just reduce the time that radio frequency is opened, the power consumption that reduces UE also is very helpful.In addition, under case of soft handover, can dispose the parallel Multipath searching that 1～n search window carried out a plurality of sub-districts, reduce the delay of search.
Fig. 4 shows the structure of search unit, and each search unit comprises status control module 41, scrambling generator 42, symbol coherent accumulation module 43, full accumulator module 44, energy computing module 45 and noncoherent accumulation module 46 totally 6 function sub-modules.
Status control module 41 produces the operating control signal of each function sub-modules in the whole search unit by state machine shown in Figure 5, control other each module startup, stop etc.When system reset, state machine is in Idle state, receives to enter after the enabling signal and waits for the time slot head status.When any one time slot head of sub-district arrives, enter correlation behavior, carry out at this state that symbol adds up, adds up entirely, energy calculates and the noncoherent accumulation operation.Satisfy the coherent accumulation and noncoherent accumulation length of configuration when correlation length after, send the ordering request, enter simultaneously and wait for the ordering completion status.State machine finish ordering back according to current be that search operation or measuring operation decision enter and wait for the time slot head status or reenter Idle state.
Scrambling generator 42 produces scrambler according to parameters such as the main scrambler first phase of upper-layer configured, CPICH frame head position, search window original positions.Relevant in order to support from any time slot head startup of sub-district, scrambling generator 42 can begin to produce scrambler from any time slot head, specifically can realize by select different taps on the shift register of scrambling generator 42.
Symbol coherent accumulation module 43 is finished the related operation of 256 chip width between the scrambler of the base band data (being specially I circuit-switched data and Q circuit-switched data) of input and scrambling generator 42 outputs, and finishes the coherent accumulation computing of the correlated results in the symbol.
The symbol coherent accumulation value that full accumulator module 44 is finished 43 outputs of prime symbol coherent accumulation module adds up according to the coherent accumulation length of configuration and the space-time emission diversity indication of CPICH, output I/Q two-way operation result.
Energy computing module 45 carries out summed square with the I/Q two-way result that full accumulator module obtains, and obtains energy value.
The energy value of 46 pairs of energy computing modules of noncoherent accumulation module, 45 outputs carries out smoothing processing, and processing procedure is exactly that the noncoherent accumulation length of energy value according to configuration is added up.
As shown in Figure 6, the tentation data list entries is Di, and scrambler sequence is Si, and it is the i.e. coherent accumulation result of 256 chips of 1 symbol that symbol coherent accumulation module 43 is calculated a length, and the setting search window width is m, promptly calculates following formula:
Phase place 0:sum
0=D
0* S
0+ D
1* S
1+ D
2* S
2+ D
3* S
3... ... ..+D
255* S
255
Phase place 1:sum
1=D
1* S
0+ D
2* S
1+ D
3* S
2+ D
4* S
3... ... ..+D
256* S
255
Phase place 2:sum
2=D
2* S
0+ D
3* S
1+ D
4* S
2+ D
5* S
3... ... ..+D
257* S
255
......
Phase place m-1:sum
M-1=D
M-1* S
0+ D
m* S
1+ D
M+1* S
2+ D
M+2* S
3... ...+D
M+254* S
255
In the formula, Di represents the data of i phase place, and Si represents the scrambler of i phase place, all is divided into the I/Q two-way.
Add up formula as can be known by above-mentioned summation, and except preceding m-1 data of first symbol, each input Di needs to multiply each other with m scrambler.Simultaneously, import a Di, the scrambling code phase that correspondence multiplies each other all can move one at every turn, can take the mode of scrambler shift LD to handle this process.
Fig. 7 shows the structure of symbol coherent accumulation module 43, form by a plurality of relevant unit 71.0～71.y-1 cascades that add up, the quantity y of the relevant unit that adds up is by the window width m (unit is a chip) and clock rate x (i.e. clock number that chip the is interior) decision of each search unit, y=m/x.Like this, in different systems, can adjust the structure of the relevant unit that adds up according to clock rates and search unit window width.
Fig. 8 shows the structure of the relevant unit that adds up, suppose that clock frequency is an x spreading rate doubly, because each chip data all is two samplings, therefore actual is two groups of data (I0 of parallel processing when handling, Q0), (I1, Q1), the individual number average of adder 85 and multiplier 86 is identical with the way of data register 82 dateouts.Scrambling generator 42 produces the input of a new scrambler as scrambler shift register 81 at each chip, and simultaneously, data register 82 (I0, Q0, I1, Q1) is also imported new data.In each chip duration, x organizes the value 0,1 of scrambler according to clock counter 83 ..., x-1 carries out multiple multiplication successively by first MUX 84 by the multiplier 85 and the dateout of data register 82.The result that multiple multiplication obtains is input to and carries out adding up in the symbol in the adder 86, and intermediate object program is temporarily stored in the scratch-pad storage 88 that adds up, and the scratch-pad storage 88 that adds up can be dual port RAM.Second MUX 89 selects the current data accumulated of each adder to be input in the corresponding adder from the scratch-pad storage 88 that adds up.
As an alternative embodiment of the invention, in order to save memory space, unified x is organized writes in the scratch-pad storage 88 that adds up after data are spliced by concatenation module 87.
The present invention's existing fixing search window width search on hardware is realized is measured simpler, and can realize the mode of more flexible configuration, is being configured to more to save resource than existing scheme under the suitable situation of performance.In addition, for the power consumption of saving UE certain help is arranged also.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1, a kind of Multipath searching and energy measuring apparatus is characterized in that, described device comprises:
A plurality of search units, each search unit is concerned with and incoherent computing to prime input data according to upper-layer configured parameters, the output operation result; And
A multipath selected cell is used for timesharing the operation result of described a plurality of search units output is sorted, and exports one or more the strongest path that each search unit obtains and the energy of described path correspondence.
2, Multipath searching as claimed in claim 1 and energy measuring apparatus, it is characterized in that described upper-layer configured parameters comprises that search enables, main scrambler first phase, CPICH frame head position, search window original position be with respect to the skew of CPICH frame head, space-time emission diversity indication, coherent accumulation length and the noncoherent accumulation length of CPICH.
3, Multipath searching as claimed in claim 1 and energy measuring apparatus is characterized in that, described search unit comprises:
Status control module is used for producing operating control signal according to the residing state of system;
Scrambling generator, the main scrambler first phase, CPICH frame head position, the search window original position that are used for according to upper-layer configured produce scrambler;
Symbol coherent accumulation module is used for the base band data of input and the scrambler of scrambling generator output are carried out related operation, and the correlated results in the symbol is carried out coherent accumulation;
Full accumulator module is used for the symbol coherent accumulation value of prime symbol coherent accumulation module output being added up output I/Q two-way operation result according to the coherent accumulation length of configuration and the space-time emission diversity indication of CPICH;
The energy computing module, the I/Q two-way operation result that is used for full accumulator module is obtained carries out summed square, the output energy value; And
The noncoherent accumulation module is used for the energy value of energy computing module output is added up according to the noncoherent accumulation length that disposes.
4, Multipath searching as claimed in claim 3 and energy measuring apparatus, it is characterized in that described symbol coherent accumulation module is by a plurality of relevant unit cascaded forming of adding up, the quantity y=m/x of the relevant unit that adds up, m is the window width of each search unit, and x is a clock rate.
5, Multipath searching as claimed in claim 4 and energy measuring apparatus is characterized in that, the described relevant unit that adds up comprises:
The scrambler shift register is used to deposit x the scrambler that scrambling generator produces;
Data register is used to deposit I/Q two-way sampling number certificate;
Clock counter is used to produce the clock count value;
First MUX, the clock count value that is used for producing according to clock counter is selected the corresponding scrambler of output from the scrambler shift register;
A plurality of multipliers are used for the data that the scrambler and the data register of the output of first MUX are deposited are carried out multiple multiplication;
A plurality of adders are used for the multiple multiplication result of multiplier output being carried out adding up in the symbol, output intermediate object program;
The scratch-pad storage that adds up is used to store the intermediate object program of a plurality of adders outputs; And
Second MUX is used for selecting the current data accumulated of each adder from the scratch-pad storage that adds up.
6, Multipath searching as claimed in claim 5 and energy measuring apparatus is characterized in that, the described relevant unit that adds up further comprises:
Concatenation module is input to the scratch-pad storage that adds up after being used for the intermediate object program of a plurality of adders output spliced.
7, Multipath searching as claimed in claim 3 and energy measuring apparatus is characterized in that, described state comprises Idle state, wait time slot head status, correlation behavior and waits for the ordering completion status;
When system reset, be in Idle state, receive to enter after the enabling signal and wait for the time slot head status; When any one time slot head of sub-district arrives, enter correlation behavior, carry out at this state that symbol adds up, adds up entirely, energy calculates and the noncoherent accumulation operation; Satisfy the coherent accumulation and noncoherent accumulation length of configuration when correlation length after, send the ordering request, enter simultaneously and wait for the ordering completion status; Finish ordering back according to current be that search operation or measuring operation enter and wait for the time slot head status or reenter Idle state.
8, a kind of receiver comprises Multipath searching and energy measuring apparatus, is used for detecting the multipath signal propagation delay from base band data, exports the positional information and the energy in one or more the strongest paths, it is characterized in that described device comprises:
A plurality of search units, each search unit is concerned with and incoherent computing to prime input data according to upper-layer configured parameters, the output operation result; And
A multipath selected cell is used for timesharing the operation result of described a plurality of search units output is sorted, and exports one or more the strongest path that each search unit obtains and the energy of described path correspondence.
9, receiver as claimed in claim 7, it is characterized in that described upper-layer configured parameters comprises that search enables, main scrambler first phase, CPICH frame head position, search window original position be with respect to the skew of CPICH frame head, space-time emission diversity indication, coherent accumulation length and the noncoherent accumulation length of CPICH.
10, receiver as claimed in claim 7 is characterized in that, described search unit comprises:
Status control module is used for producing operating control signal according to the residing state of system;
Scrambling generator, the main scrambler first phase, CPICH frame head position, the search window original position that are used for according to upper-layer configured produce the shape sign indicating number;
Symbol coherent accumulation module is used for the base band data of input and the scrambler of scrambling generator output are carried out related operation, and the correlated results in the symbol is carried out coherent accumulation;
Full accumulator module is used for the symbol coherent accumulation value of prime symbol coherent accumulation module output being added up output I/Q two-way operation result according to the coherent accumulation length of configuration and the space-time emission diversity indication of CPICH;
The energy computing module, the I/Q two-way operation result that is used for full accumulator module is obtained carries out summed square, the output energy value; And
The noncoherent accumulation module is used for the energy value of energy computing module output is added up according to the noncoherent accumulation length that disposes.
11, receiver as claimed in claim 10 is characterized in that, described symbol coherent accumulation module is by a plurality of relevant unit cascaded forming of adding up, the quantity y=m/x of the relevant unit that adds up, and m is the window width of each search unit, x is a clock rate.
12, receiver as claimed in claim 11 is characterized in that, the described relevant unit that adds up comprises:
The scrambler shift register is used to deposit x the scrambler that scrambling generator produces;
Data register is used to deposit I/Q two-way sampling number certificate;
Clock counter is used to produce the clock count value;
First MUX, the clock count value that is used for producing according to clock counter is selected the corresponding scrambler of output from the scrambler shift register;
A plurality of multipliers are used for the data that the scrambler and the data register of the output of first MUX are deposited are carried out multiple multiplication;
A plurality of adders are used for the multiple multiplication result of multiplier output being carried out adding up in the symbol, output intermediate object program;
The scratch-pad storage that adds up is used to store the intermediate object program of a plurality of adders outputs; And
Second MUX is used for selecting the current data accumulated of each adder from the scratch-pad storage that adds up.
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| CNA2006100618813A CN1905396A (en) | 2006-07-30 | 2006-07-30 | Multi-path searching and energy measuring apparatus and receiver |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105450322A (en) * | 2015-11-11 | 2016-03-30 | 成都飞机工业（集团）有限责任公司 | Multi-bit-stream and multi-redundant telemetry data stream real-time fusion method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105450322A (en) * | 2015-11-11 | 2016-03-30 | 成都飞机工业（集团）有限责任公司 | Multi-bit-stream and multi-redundant telemetry data stream real-time fusion method |
| CN105450322B (en) * | 2015-11-11 | 2020-04-03 | 成都飞机工业（集团）有限责任公司 | Multi-bit stream redundancy telemetering data stream real-time fusion method |
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