CN103457891B - Modulator approach and modulating equipment - Google Patents

Abstract

The embodiment of the present invention provides a kind of modulator approach and modulating equipment.This modulator approach includes: obtain the first mapping result according to the information of the first mapping mode mapped phases reference channel, map according to the first mapping mode and obtain corresponding N number of second mapping result with the information of N number of channel of phase reference channel homophase, the information mapping M channel out of phase with phase reference channel according to the second mapping mode obtains corresponding M the 3rd mapping result, and N, M are positive integer；Based on the first mapping result, the second mapping result and the 3rd mapping result, obtaining modulation intelligence to be launched, wherein, in the first mapping mode, " 0 " is mapped as exp{j ω }, " 1 " is mapped as exp{j (ω+π) }；In the second mapping mode, " 0 " is mapped as exp{j (ω+pi/2) }, " 1 " is mapped as exp{j (ω+3 pi/2) }, wherein j is imaginary unit, and ω represents fixed phase and is not equal to k pi/2, and k is integer.The embodiment of the present invention simplifies modulated structure, it is simple to extension.

Description

Modulation method and modulation equipment

technical field

Embodiments of the present invention relate to the field of mobile communications, and more specifically, to a modulation method and a modulation device.

Background technique

Traditional modulation methods are divided into I (In-phase, in-phase) and Q (Quadrature, quadrature), each of which includes multiple channels. The two channels of information are mapped, spread, power biased and summed separately. The obtained I-path result and Q-path result are used as real part and imaginary part respectively, and then scrambled to obtain modulation information to be transmitted. In other words, in traditional I/Q modulation, the I channel belongs to the real number domain, and the Q channel belongs to the imaginary number domain.

The processing structure of this branch modulation method is relatively complicated, and it is not easy to expand. For example, if a new channel needs to be added, it must be considered whether to classify the channel as an I-way or a Q-way. On this basis, it may be necessary to consider the impact on existing channels on each way, and the implementation is relatively complicated.

Contents of the invention

Embodiments of the present invention provide a modulation method and a modulation device, which can simplify a modulation structure.

In the first aspect, a modulation method is provided, including: mapping information of a phase reference channel according to a first mapping method to obtain a first mapping result, and mapping information of N channels in phase with the phase reference channel according to the first mapping method to obtain Corresponding to N second mapping results, mapping the information of M channels out of phase with the phase reference channel according to the second mapping method to obtain corresponding M third mapping results, where N and M are positive integers; based on the first The mapping result, the N second mapping results, and the M third mapping results obtain modulation information to be transmitted, where, in the first mapping mode, "0" is mapped to exp{jω}, "1" is mapped to exp{j(ω+π)}; in the second mapping method, "0" is mapped to exp{j(ω+π/2)}, and "1" is mapped to exp {j(ω+3π/2)}, where j is the imaginary unit, ω represents the reference phase and is not equal to kπ/2, and k is an integer.

With reference to the first aspect, in an implementation manner of the first aspect, the acquiring modulation information to be transmitted based on the first mapping result, the N second mapping results, and the M third mapping results , comprising: multiplying the first mapping result, the N second mapping results, and the M third mapping results by corresponding processing codes to obtain corresponding first processing results; respectively multiplying the first processing results Multiplying the corresponding gain factor to obtain a corresponding second processing result; accumulating the second processing result to obtain the modulation information to be transmitted.

With reference to the first aspect and the foregoing implementation manners thereof, in another implementation manner of the first aspect, the processing code is obtained by multiplying a scrambling code by a corresponding spreading code of a channel.

With reference to the first aspect and the foregoing implementation manners thereof, in another implementation manner of the first aspect, based on the first mapping result, the N second mapping results, and the M third mapping results, Acquiring modulation information to be transmitted includes: multiplying the first mapping result, the N second mapping results, and the M third mapping results by corresponding spreading codes to obtain corresponding third processing results ; Multiply the third processing result by the corresponding gain factor to obtain the corresponding fourth processing result; accumulate the fourth processing result to obtain the fifth processing result; multiply the fifth processing result by the scrambling code to obtain the Describe the modulation information to be transmitted.

In combination with the first aspect and the foregoing implementation manners, in another implementation manner of the first aspect, ω=nπ/4, and n is an odd number.

With reference to the first aspect and the foregoing implementation manners thereof, in another implementation manner of the first aspect, the aforementioned phase reference channel is a DPCCH.

In a second aspect, a modulation device is provided, including: a mapping unit, configured to map the information of the phase reference channel according to a first mapping method to obtain a first mapping result, and map N in phase with the phase reference channel according to the first mapping method. The information of the channels is corresponding to N second mapping results, and the information of the M channels that are out of phase with the phase reference channel is mapped according to the second mapping method to obtain the corresponding M third mapping results, wherein N and M are positive integers; An acquiring unit, configured to acquire modulation information to be transmitted based on the first mapping result, the N second mapping results, and the M third mapping results, wherein, in the first mapping manner, " 0" is mapped to exp{jω}, and "1" is mapped to exp{j(ω+π)}; in the second mapping method, "0" is mapped to exp{j(ω+π/2 )}, "1" is mapped to exp{j(ω+3π/2)}, where j is the imaginary unit, ω represents the reference phase and is not equal to kπ/2, and k is an integer.

With reference to the second aspect, in an implementation manner of the second aspect, the acquiring unit includes: a first multiplier configured to combine the first mapping result, the N second mapping results, and the M The third mapping results are respectively multiplied by corresponding processing codes to obtain corresponding first processing results; the second multiplier is used to respectively multiply the first processing results by corresponding gain factors to obtain corresponding second processing results; an adder, configured to accumulate the second processing result to obtain the modulation information to be transmitted.

With reference to the second aspect and the foregoing implementation manners thereof, in another implementation manner of the second aspect, the processing code is obtained by multiplying a scrambling code by a corresponding spreading code of a channel.

With reference to the second aspect and the above-mentioned implementation manners thereof, in another implementation manner of the second aspect, the acquisition unit includes: a third multiplier configured to combine the first mapping result, the N second mapping results The result and the M third mapping results are respectively multiplied by corresponding spreading codes to obtain corresponding third processing results; the fourth multiplier is used to multiply the third processing results by corresponding gain factors respectively to obtain corresponding A fourth processing result; a second adder, configured to accumulate the fourth processing result to obtain a fifth processing result; a fifth multiplier, configured to multiply the fifth processing result by a scrambling code to obtain the to-be-transmitted modulation information.

In combination with the second aspect and the above-mentioned implementation manners, in another implementation manner of the second aspect, ω=nπ/4, and n is an odd number.

With reference to the second aspect and the foregoing implementation manners thereof, in another implementation manner of the second aspect, the aforementioned phase reference channel is a DPCCH.

In the embodiment of the present invention, the information of each channel is mapped to the complex number domain without performing branch modulation on each channel. In this way, the information of each channel can be modulated in a unified manner, which simplifies the modulation structure and facilitates expansion.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 is a schematic diagram of an I/Q modulation method.

Fig. 2 is a flowchart of a modulation method according to an embodiment of the present invention.

Fig. 3 is a block diagram of a modulation device according to one embodiment of the present invention.

FIG. 4 is a block diagram of a modulation device of another embodiment of the present invention.

FIG. 5 is a block diagram of a modulation device of another embodiment of the present invention.

Fig. 6 is a schematic diagram of a specific example of a modulation process in another embodiment of the present invention.

Fig. 7 is a block diagram of a communication device according to another embodiment of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

The technical scheme of the present invention can be applied to various communication systems, for example: Global System for Mobile Communications (GSM, Global System of Mobile communication), Code Division Multiple Access (CDMA, Code Division Multiple Access) system, Wideband Code Division Multiple Access (WCDMA , Wideband CodeDivision Multiple Access Wireless), General Packet Radio Service (GPRS, General PacketRadio Service), Long Term Evolution (LTE, Long Term Evolution), etc.

User equipment (UE, User Equipment), also known as mobile terminal (MobileTerminal), mobile user equipment, etc., can communicate with one or more core networks via a radio access network (for example, RAN, Radio AccessNetwork). Devices may be mobile terminals, such as mobile telephones (or "cellular" telephones) and computers with mobile terminals, such as portable, pocket, hand-held, built-in computer, or vehicle-mounted mobile devices, which communicate with wireless Access the network to exchange language and/or data.

The base station can be a base station (BTS, Base Transceiver Station) in GSM or CDMA, a base station (NodeB) in WCDMA, or an evolved base station (eNB or e-NodeB, evolutional Node B) in LTE, The present invention is not limited.

FIG. 1 is a schematic diagram of an I/Q modulation method. Figure 1 is an example of I/Q modulation in a WCDMA system.

As shown in Figure 1, the I channel includes DPDCH ₁ , DPDCH ₃ , DPDCH ₅ and HS-DPCCH (if N _max-dpch mod2=0), and the Q channel includes DPDCH ₂ , DPDCH ₄ , DPDCH ₆ , DPCCH and HS-DPCCH (if N _max-dpch mod2=1) each channel. Here, DPDCH is a dedicated physical data channel (Dedicated Physical Data CHannel), DPCCH is a dedicated physical control channel (Dedicated Physical Control CHannel), and HS-DPCCH is a high-speed DPCCH (High Speed DPCCH). N _max-dpch is the maximum number of DPDCH, and mod is a modulo operation.

The I channel belongs to the real number field, and the information on each channel is mapped as follows: "0" is mapped to 1, and "1" is mapped to -1. The Q channel belongs to the imaginary number field, and the information on each channel is equivalent to being mapped as follows: "0" is mapped to j, and "1" is mapped to -j. j is the imaginary unit.

In addition, in Fig. 1, c _d,1 to c _d,6 , c _hs and c _c are corresponding spreading codes of the channel, and β _d , β _c and β _hs are corresponding gain factors of the channel. Both the spreading code and the gain factor are real numbers. S _dpch,n is a scrambling code and is a complex number, so it can also be called a complex scrambling code.

It can be seen from the modulation structure in Fig. 1 that the I channel and the Q channel need to be summed separately, and the obtained results are summed in the complex number domain before being multiplied by the complex scrambling code. Such a modulation structure is relatively complicated and not easy to expand. For example, for the HS-DPCCH channel, it is necessary to consider the maximum number of DPDCHs to determine whether to place it on the I channel or the Q channel for modulation. If new channel types need to be expanded in the future, it is still necessary to determine which channel the new channel should be placed for modulation, and modify the corresponding hardware and/or software architecture, which is relatively complicated to implement.

Fig. 2 is a flowchart of a modulation method according to an embodiment of the present invention. The method in FIG. 2 is executed by the transmitting end.

201. Map information of the phase reference channel according to the first mapping method to obtain a first mapping result, map information of N second channels in phase with the phase reference channel according to the first mapping method to obtain corresponding N second mapping results, and obtain corresponding N second mapping results according to the first mapping method The two-mapping method maps the information of M channels out of phase with the phase reference channel to obtain M corresponding third mapping results, where N and M are positive integers.

202. Acquire modulation information to be transmitted based on the first mapping result, N second mapping results, and M third mapping results.

Among them, in the first mapping method, "0" is mapped to exp{jω}, and "1" is mapped to exp{j(ω+π)}; in the second mapping method, "0" is mapped to exp {j(ω+π/2)}, "1" is mapped to exp{j(ω+3π/2)}, where j is the imaginary unit, ω represents the reference phase and is not equal to kπ/2, and k is an integer.

In the embodiment of the present invention, the information of each channel is mapped to the complex number domain without performing branch modulation on each channel. In this way, the information of each channel can be modulated in a unified manner, which simplifies the modulation structure and facilitates expansion.

Specifically, exp{jω}=cosω+j×sinω, since ω is not equal to kπ/2 and k is an integer, neither cosω nor sinω is zero. In other words, the embodiment of the present invention maps the information of each channel to the real part and the imaginary part at the same time. Taking the interval of 0<ω<π/2 as an example, ω can take any value in this interval, such as π/3, π/4, etc. Taking the interval of 0<ω<2π as an example, ω can take any value other than π/2, π and 3π/2.

In the case of ω=π/4, in the first mapping method, "0" is mapped to (1+j)/√2, and "1" is mapped to (-1-j)/√2; In the two-mapping mode, "0" is mapped to (-1+j)/√2, and "1" is mapped to (1-j)/√2.

However, the embodiments of the present invention can also be compatible with existing I/Q modulation modes. For example, when ω=2kπ, in the first mapping method, "0" is mapped to 1, and "1" is mapped to -1; in the second mapping method, "0" is mapped to j, "1" is mapped to -j. In this way, the modulation method of the present invention can flexibly adapt to various requirements according to different values of ω.

A phase reference channel is a reference channel used to determine the phase of other channels. Specifically, other channels may be in-phase or out-of-phase (eg, quadrature) with the phase reference channel. Optionally, as an embodiment, the phase reference channel may be a DPCCH. However, the embodiment of the present invention does not limit the specific form of the phase reference channel, as long as the phase relationship between a certain channel and other channels is definite, such a channel can be used as the phase reference channel.

Optionally, as an embodiment, in step 202, the first mapping result, the N second mapping results and the M third mapping results may be multiplied by corresponding processing codes to obtain corresponding first processing results. Then, the first processing results are respectively multiplied by corresponding gain factors to obtain corresponding second processing results. Finally, the second processing result is accumulated to obtain the modulation information to be transmitted.

When the gain factor of a certain channel is set to 0, the information corresponding to this channel will not be transmitted.

Optionally, as another embodiment, the foregoing processing code is obtained by multiplying a scrambling code by a corresponding spreading code of a channel.

This way the multiplication stages in the modulation structure can be reduced. In the I/Q modulation in Fig. 1, three multiplication stages of spreading code, gain factor and scrambling code are used. Since the spreading code and the gain factor belong to the real number domain and the scrambling code belongs to the complex number domain, the two multiplication stages of the spreading code and the scrambling code cannot be combined. The embodiment of the present invention does not distinguish between the real number field and the imaginary number field, but directly maps information to the complex number field, so spreading codes and scrambling codes (that is, the above-mentioned processing codes) can be combined, thereby reducing multiplication stages and further simplifying the modulation structure.

Optionally, as another embodiment, in step 202, the first mapping result, the N second mapping results and the M third mapping results can be multiplied by the corresponding spreading codes respectively to obtain the corresponding third processing result. Then, the third processing results are multiplied by corresponding gain factors to obtain corresponding fourth processing results. Then, the fourth processing result is accumulated to obtain a fifth processing result. Then, the fifth processing result is multiplied by the scrambling code to obtain the modulation information to be transmitted.

Optionally, as another embodiment, ω=nπ/4, and n is an odd number. For example ω=π/4, 3π/4, 5π/4 or 7π/4. However, the embodiment of the present invention does not limit the specific value of ω.

Fig. 3 is a block diagram of a modulation device according to one embodiment of the present invention. The modulation device 30 of FIG. 3 includes a mapping unit 31 and an acquisition unit 32 .

The mapping unit 31 maps the information of the phase reference channel according to the first mapping method to obtain a first mapping result, and maps the information of N second channels in phase with the phase reference channel according to the first mapping method to obtain corresponding N second mapping results, according to The second mapping method maps the information of M channels out of phase with the phase reference channel to obtain M corresponding third mapping results, where N and M are positive integers.

The acquiring unit 32 acquires the modulation information to be transmitted based on the first mapping result, the N second mapping results and the M third mapping results.

Among them, in the first mapping method, "0" is mapped to exp{jω}, and "1" is mapped to exp{j(ω+π)}; in the second mapping method, "0" is mapped to exp {j(ω+π/2)}, "1" is mapped to exp{j(ω+3π/2)}, where j is the imaginary unit, ω represents the reference phase and is not equal to kπ/2, and k is an integer.

In the embodiment of the present invention, the information of each channel is mapped to the complex number domain without performing branch modulation on each channel. In this way, the information of each channel can be modulated in a unified manner, which simplifies the modulation structure and facilitates expansion.

Optionally, as an embodiment, ω=nπ/4, and n is an odd number. For example ω=π/4, 3π/4, 5π/4 or 7π/4.

FIG. 4 is a block diagram of a modulation device of another embodiment of the present invention. The modulation device 40 of Fig. 4 is an embodiment of the modulation device 30 of Fig. 3, therefore, the same elements will be given the same reference numerals.

It should be noted that in the embodiment of FIG. 4 , N=M=1 is taken as an example for description. However, those skilled in the art can understand that N and/or M may be other positive integers, and such changes still fall within the scope of the embodiments of the present invention. In addition, in the embodiment of FIG. 4 , the DPCCH is used as an example of the phase reference channel, but the embodiment of the present invention does not limit the specific form of the phase reference channel.

As shown in Figure 4, the mapping unit 31 maps the information of the DPCCH according to the first mapping method to obtain the first mapping result 401, maps the information of the in-phase channel of the DPCCH according to the first mapping method to obtain the second mapping result 402, and obtains the second mapping result 402 according to the second mapping method. The third mapping result 403 is obtained by mapping the information of the orthogonal channels of the DPCCH in a manner.

The acquisition unit 32 includes a first multiplier 321 , a second multiplier 322 and a first adder 323 .

The first multiplier 321 multiplies the first mapping result 401 , the second mapping result 402 and the third mapping result 403 by corresponding processing codes 411 , 412 and 413 respectively to obtain corresponding first processing results 421 , 422 and 423 .

The second multiplier 322 multiplies the first processing results 421 , 422 and 423 by corresponding gain factors 431 , 432 and 433 respectively to obtain corresponding second processing results 441 , 442 and 443 .

The first adder 323 accumulates the second processing results 441 , 442 and 443 to obtain modulation information 450 to be transmitted.

In the embodiment of the present invention, the information of each channel is mapped to the complex number domain without performing branch modulation on each channel. In this way, the information of each channel can be modulated in a unified manner, which simplifies the modulation structure and facilitates expansion.

In addition, the modulation device 40 can reduce the multiplication stage in the modulation process. In the I/Q modulation in Fig. 1, three multiplication stages of spreading code, gain factor and scrambling code are used. Since the spreading code and the gain factor belong to the real number domain and the scrambling code belongs to the complex number domain, the two multiplication stages of the spreading code and the scrambling code cannot be combined. The embodiment of the present invention does not distinguish between the real number field and the imaginary number field, but directly maps information to the complex number field, so only two multiplication stages of code and gain factor need to be processed, further simplifying the modulation structure.

In this case, when setting the value of the processing code, it can be obtained by multiplying the original scrambling code by the corresponding spreading code of the channel.

FIG. 5 is a block diagram of a modulation device of another embodiment of the present invention. The modulation device 50 of Fig. 5 is an embodiment of the modulation device 30 of Fig. 3, therefore, the same elements will use the same reference numerals.

It should be noted that in the embodiment of FIG. 5 , N=M=1 is taken as an example for description. However, those skilled in the art can understand that N and/or M may be other positive integers, and such changes still fall within the scope of the embodiments of the present invention. In addition, in the embodiment of FIG. 5 , the DPCCH is used as an example of the phase reference channel, but the embodiment of the present invention does not limit the specific form of the phase reference channel.

As shown in Figure 5, the mapping unit 51 maps the information of the DPCCH according to the first mapping method to obtain the first mapping result 501, maps the information of the in-phase channel of the DPCCH according to the first mapping method to obtain the second mapping result 502, and obtains the second mapping result 502 according to the second mapping method The third mapping result 503 is obtained by mapping the information of the orthogonal channels of the DPCCH in a manner.

The acquisition unit 32 includes a third multiplier 324 , a fourth multiplier 325 , a second adder 326 and a fifth multiplier 327 .

The third multiplier 324 multiplies the first mapping result 501 , the second mapping result 502 and the third mapping result 503 by corresponding spreading codes 511 , 512 and 513 respectively to obtain corresponding third processing results 521 , 522 and 523 .

The fourth multiplier 325 multiplies the third processing results 521 , 522 and 523 by corresponding gain factors 531 , 532 and 533 respectively to obtain corresponding fourth processing results 541 , 542 and 543 .

The second adder 326 accumulates the fourth processing results 541 , 542 and 543 to obtain a fifth processing result 550 .

The fifth multiplier 327 multiplies the fifth processing result 550 by the scrambling code 551 to obtain modulation information 560 to be transmitted.

In the embodiment of the present invention, the information of each channel is mapped to the complex number domain without performing branch modulation on each channel. In this way, the information of each channel can be modulated in a unified manner, which simplifies the modulation structure and facilitates expansion.

The embodiment of the present invention does not limit the sequence of each multiplication stage in FIG. 4 and FIG. 5 . For example, in Fig. 5, scrambling can also be performed first, and then spread spectrum and gain can be performed. Since the embodiment of the present invention maps the information of each channel on the complex domain, this order exchange will not affect the modulation result, while the I/Q modulation in FIG. 1 cannot perform such multiplicative order exchange.

Fig. 6 is a schematic diagram of a specific example of a modulation process in another embodiment of the present invention.

As shown in FIG. 6 , DPCCH is used as an example of the above-mentioned phase reference channel, and the modulation modes of other channels are determined according to the phase relationship between the channel and DPCCH.

Specifically, DPDCH ₂ , DPDCH ₄ , and DPDCH ₆ are in phase with DPCCH, so the same mapping method is used. DPDCH ₁ , DPDCH ₃ , and DPDCH ₅ are orthogonal to DPCCH, so different mapping methods are adopted. FIG. 6 shows a scenario example of 6 DPDCHs, but the embodiment of the present invention does not limit the specific number of DPDCHs.

The HS-DPCCH may use the same mapping method as the DPCCH, or may use a different mapping method from the DPCCH.

Sc _c is the processing code of the DPCCH, and its value may be equal to S _dpch,n in FIG. 1 multiplied by c _c .

Sc _d,1 to Sc _d,6 are the processing codes of DPDCH ₁ to DPDCH ₆ respectively, in numerical value Sc _d,i =S _dpch,n ×c _d,i , where i=1~6.

β _d , β _c and β _hs are the corresponding gain factors of the channel, which may be the same as the values of each gain factor in the example in FIG. 1 . However, the embodiment of the present invention does not limit the value of the gain factor. For example, if the modulus of the mapping result is not 1 during mapping, the gain factor may be corrected to normalize the gained result. Specifically, assuming that the modulus of the mapping result is a, the gain factor in FIG. 1 can be divided by a to obtain the corrected gain factor in FIG. 6 . Such a processing manner is substantially equivalent to the modulation manner of the embodiment of the present invention, and therefore also falls within the scope of the embodiment of the present invention.

In addition, if the information of a certain channel does not need to be sent at a certain moment, the information of the channel may not be input to the mapping unit, or the gain factor corresponding to the channel may be set to 0.

The results obtained after gaining are summed to obtain the modulation information S to be sent.

In the embodiment of the present invention, the information of each channel is mapped to the complex number domain without performing branch modulation on each channel. In this way, the information of each channel can be modulated in a unified manner, which simplifies the modulation structure and facilitates expansion.

In addition, it should be noted that each component in FIG. 6 may be implemented by hardware, or may be implemented by software on the basis of hardware.

Fig. 7 is a block diagram of a communication device according to another embodiment of the present invention. The communication device 70 in FIG. 7 includes a processor 71 , a memory 72 , a receiving circuit 73 and a transmitting circuit 74 . The processor 71 , memory 72 , receiving circuit 73 and transmitting circuit 74 are connected via a bus system 79 .

In addition, the communication device 70 may further include an antenna 75 and the like. The processor 71 controls the operation of the communication device 70 . The memory 72 may include read-only memory and random-access memory, and provides instructions and data to the processor 71 . A portion of memory 72 may also include non-volatile random access memory (NVRAM). In a specific application, the transmitting circuit 74 and the receiving circuit 73 may be coupled to the antenna 75 . Various components of the communication device 70 are coupled together through a bus system 79, wherein the bus system 79 may include a power bus, a control bus, a status signal bus, etc. in addition to a data bus. However, for clarity of illustration, the various buses are labeled as bus system 79 in the figure.

The processor 51 may be an integrated circuit chip with signal processing capabilities. The above-mentioned processor 51 may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. Various methods, steps and logic block diagrams disclosed in the embodiments of the present invention may be implemented or executed. A general-purpose processor may be a microprocessor, or the processor may be any conventional processor, and the like. The processor 71 reads the information in the memory 72 and controls various components of the modulation device 70 in conjunction with its hardware.

The method in FIG. 2 may be implemented in the communication device 70 in FIG. 7 , or the modulation device in FIG. 3 may be implemented by the communication device 70 in FIG. 7 (for example, implemented by the transmitting circuit 74 of the communication device 70 ). One example of communication device 70 is user equipment. To avoid repetition, no detailed description is given.

Specifically, the transmitting circuit 74 performs the following operations under the control of the processor 71:

Map the information of the phase reference channel according to the first mapping method to obtain the first mapping result, map the information of N second channels in phase with the phase reference channel according to the first mapping method to obtain corresponding N second mapping results, and obtain corresponding N second mapping results according to the second mapping method The method maps information of M channels out of phase with the phase reference channel to obtain corresponding M third mapping results, where N and M are positive integers. Based on the first mapping result, the N second mapping results and the M third mapping results, modulation information to be transmitted is acquired. Among them, in the first mapping method, "0" is mapped to exp{jω}, and "1" is mapped to exp{j(ω+π)}; in the second mapping method, "0" is mapped to exp {j(ω+π/2)}, "1" is mapped to exp{j(ω+3π/2)}, where j is the imaginary unit, ω represents the reference phase and is not equal to kπ/2, and k is an integer.

In the embodiment of the present invention, the information of each channel is mapped to the complex number domain without performing branch modulation on each channel. In this way, the information of each channel can be modulated in a unified manner, which simplifies the modulation structure and facilitates expansion.

Optionally, as an embodiment, the transmitting circuit 74 may multiply the first mapping result, the N second mapping results, and the M third mapping results by corresponding processing codes to obtain corresponding first processing results. Then, the first processing results are respectively multiplied by corresponding gain factors to obtain corresponding second processing results. Finally, the second processing result is accumulated to obtain the modulation information to be transmitted.

Optionally, as another embodiment, the foregoing processing code is obtained by multiplying a scrambling code by a corresponding spreading code of a channel.

This way the multiplication stages in the modulation structure can be reduced. In the I/Q modulation in Fig. 1, three multiplication stages of spreading code, gain factor and scrambling code are used. Since the spreading code and the gain factor belong to the real number domain and the scrambling code belongs to the complex number domain, the two multiplication stages of the spreading code and the scrambling code cannot be combined. The embodiment of the present invention does not distinguish between the real number field and the imaginary number field, but directly maps information to the complex number field, so spreading codes and scrambling codes (that is, the above-mentioned processing codes) can be combined, thereby reducing multiplication stages and further simplifying the modulation structure.

Optionally, as another embodiment, the transmitting circuit 74 may respectively multiply the first mapping result, the N second mapping results and the M third mapping results by corresponding spreading codes to obtain corresponding third processing results. Then, the third processing results are multiplied by corresponding gain factors to obtain corresponding fourth processing results. Then, the fourth processing result is accumulated to obtain a fifth processing result. Then, the fifth processing result is multiplied by the scrambling code to obtain the modulation information to be transmitted.

Optionally, as another embodiment, ω=nπ/4, and n is an odd number. For example ω=π/4, 3π/4, 5π/4 or 7π/4. However, the embodiment of the present invention does not limit the specific value of ω.

Those skilled in the art can appreciate that the units and algorithm steps of the examples described in conjunction with the embodiments disclosed herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are executed by hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may use different methods to implement the described functions for each specific application, but such implementation should not be regarded as exceeding the scope of the present invention.

Those skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the above-described system, device and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods may be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.

If the functions described above are realized in the form of software function units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk, and other media that can store program codes. .

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (10)

1. a modulator approach, it is characterised in that including:

The first mapping result is obtained, according to institute according to the information of the first mapping mode mapped phases reference channel State the first mapping mode mapping and obtain corresponding N number of with the information of N number of channel of phase reference channel homophase Second mapping result, maps and out of phase M the channel of phase reference channel according to the second mapping mode Information obtains corresponding M the 3rd mapping result, and wherein N, M are positive integer；

Based on described first mapping result, described N number of second mapping result and described M the 3rd mapping As a result, obtain modulation intelligence to be launched,

Wherein, in described first mapping mode, " 0 " is mapped as exp{j ω }, " 1 " is mapped as exp{j(ω+π)}；In described second mapping mode, " 0 " is mapped as exp{j (ω+pi/2) }, " 1 " quilt It is mapped as exp{j (ω+3 pi/2) }, wherein j is imaginary unit, and ω represents fixed phase and is not equal to k pi/2, K is integer.

2. modulator approach as claimed in claim 1, it is characterised in that described based on described first mapping Result, described N number of second mapping result and described M the 3rd mapping result, obtains modulation to be launched Information, including:

By described first mapping result, described N number of second mapping result and described M the 3rd mapping knot Fruit is multiplied by corresponding transaction code respectively, obtains corresponding first result；

First result is multiplied by corresponding gain factor respectively, obtains corresponding second result；

Cumulative described second result, obtains described modulation intelligence to be launched.

3. modulator approach as claimed in claim 2, it is characterised in that described transaction code is multiplied by by scrambler Channel spreads code accordingly and obtains.

4. modulator approach as claimed in claim 1, it is characterised in that described based on described first mapping Result, described N number of second mapping result and described M the 3rd mapping result, obtains modulation to be launched Information, including:

By described first mapping result, described N number of second mapping result and described M the 3rd mapping knot Fruit is multiplied by respectively and spreads code accordingly, obtains corresponding 3rd result；

3rd result is multiplied by corresponding gain factor respectively, obtains corresponding fourth process result；

Cumulative described fourth process result, obtains the 5th result；

Described 5th result is multiplied by scrambler, obtains described modulation intelligence to be launched.

5. the modulator approach as described in any one of claim 1-4, it is characterised in that ω=n π/4, n is Odd number.

6. a modulating equipment, it is characterised in that including:

Map unit, reflects for obtaining first according to the information of the first mapping mode mapped phases reference channel Penetrate result, map the information of the N number of channel with phase reference channel homophase according to described first mapping mode Obtain the most N number of second mapping result, map different from phase reference channel according to the second mapping mode The information of M channel of phase obtains corresponding M the 3rd mapping result, and wherein N, M are positive integer；

Acquiring unit, for based on described first mapping result, described N number of second mapping result and described M the 3rd mapping result, obtains modulation intelligence to be launched,

Wherein, in described first mapping mode, " 0 " is mapped as exp{j ω }, " 1 " is mapped as exp{j(ω+π)}；In described second mapping mode, " 0 " is mapped as exp{j (ω+pi/2) }, " 1 " quilt It is mapped as exp{j (ω+3 pi/2) }, wherein j is imaginary unit, and ω represents fixed phase and is not equal to k pi/2, K is integer.

7. modulating equipment as claimed in claim 6, it is characterised in that described acquiring unit includes:

First multiplier, for by described first mapping result, described N number of second mapping result and described M the 3rd mapping result is multiplied by corresponding transaction code respectively, obtains corresponding first result；

Second multiplier, for the first result is multiplied by corresponding gain factor respectively, obtains corresponding The second result；

First adder, is used for described second result that adds up, and obtains described modulation intelligence to be launched.

8. modulating equipment as claimed in claim 7, it is characterised in that described transaction code is multiplied by by scrambler Channel spreads code accordingly and obtains.

9. modulating equipment as claimed in claim 6, it is characterised in that described acquiring unit includes:

3rd multiplier, for by described first mapping result, described N number of second mapping result and described M the 3rd mapping result is multiplied by respectively and spreads code accordingly, obtains corresponding 3rd result；

4th multiplier, for the 3rd result is multiplied by corresponding gain factor respectively, obtains corresponding Fourth process result；

Second adder, is used for the described fourth process result that adds up, obtains the 5th result；

5th multiplier, for described 5th result is multiplied by scrambler, obtains described tune to be launched Information processed.

10. the modulating equipment as described in any one of claim 6-9, it is characterised in that ω=n π/4, n For odd number.