CN103856427B - Feedback signal processing method and processing device - Google Patents
Feedback signal processing method and processing device Download PDFInfo
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- CN103856427B CN103856427B CN201210519338.9A CN201210519338A CN103856427B CN 103856427 B CN103856427 B CN 103856427B CN 201210519338 A CN201210519338 A CN 201210519338A CN 103856427 B CN103856427 B CN 103856427B
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Abstract
The embodiment of the present invention provides a kind of feedback signal processing method and processing device, and the method includes the feedback signal of the sendaisle for receiving subsystem to be feedback and obtains the status information of receiving channel in other subsystems in multi-input multi-output system in addition to the subsystem to be feedback；Select status information digital pre-distortion DPD processing meanss to be sent to for the receiving channel of idle state information as intended recipient passage and by feedback signal, carry out feedback processing.Status information of the method by the receiving channel in other subsystems in acquisition multi-input multi-output system in addition to subsystem to be feedback, the receiving channel of other subsystems is multiplexed with feedback channel, make feedback signal timely be sent to DPD processing meanss, solve the problems, such as to configure a public DPD feedback channel in prior art in mimo systems and so that the feedback signal of subsystems signal causes time delay.
Description
Technical field
A kind of the present embodiments relate to communication technical field, more particularly to feedback signal processing method and processing device.
Background technology
In radio-frequency system, sendaisle and receiving channel is generally included.Wherein sendaisle sending signal it
Before make signal carry out power amplification through power amplifier element, the power attenuation with offseting signal in transmitting procedure.But due to power amplifier
The nonlinear characteristic of element can cause distortion to signal, and therefore signal must also pass through digital pre-distortion before power amplifier element
（Digital Pre-Distortion；Referred to as：DPD）Processing meanss, special according to the distortion of power amplifier element by DPD processing meanss
Property, digital pre-distortion coefficient is set, and predistortion amount is produced according to the digital pre-distortion coefficient to compensate power amplifier element to signal
The amount distortion for causing, so that obtain linearly undistorted amplification signal.But the distorted characteristic of power amplifier element can be with time, temperature
Change etc. the change of environmental factorss, therefore, the pre-distortion coefficients of DPD processing meanss are needed according to the specific distortion of power amplifier element
Characteristic is adjusted.Specifically, the signal amplified through power amplifier element is accessed feedback channel, DPD processing meanss can be according to next
The signal adjustment pre-distortion coefficients of self feed back passage, produce accurate predistortion amount.
But due to multiple-input and multiple-output（Multiple Input Multiple Output；Referred to as：MIMO）Wrap in system
Include multiple subsystems（That is radio-frequency system）, comprising multiple transceiver channels in each of which subsystem, give each subsystem
Feedback channel of putting under unified central planning can make telecommunication circuit become bulky complex, therefore configure a public DPD feedback in mimo systems logical
Road, the feedback signal of subsystems are respectively connected to this public DPD feedback channel by signal selecting switch, complete at DPD
The adjustment of reason device pre-distortion coefficients.But when using public DPD feedback channels, as subsystems must share public affairs
Common DPD feedback channels, so the feedback signal of each subsystem needs to wait the subsystem for currently taking public DPD feedback channels
Public DPD feedback channels could be accessed after the completion of the feedback signal back of system, so as to cause to the feedback of subsystems signal
Time delay, have impact on the adjustment of DPD processing meanss pre-distortion coefficients, further, since using public DPD feedback channels, therefore, also making
Occupancy and the raising of cost into space.
Content of the invention
The embodiment of the present invention provides a kind of feedback signal processing method and processing device, in order to solve in prior art in MIMO systems
A public DPD feedback channel is configured in system and causes the feedback signal of subsystems signal to cause the problem of time delay.
Embodiment of the present invention first aspect provides a kind of feedback signal processing method, it is characterised in that include：
Receive the feedback signal of the sendaisle of subsystem to be feedback；
Obtain the receiving channel in other subsystems in multi-input multi-output system in addition to the subsystem to be feedback
Status information；
If the status information of the receiving channel in other subsystems described at least one is idle state information, one is selected
The individual status information for idle state information receiving channel as intended recipient passage, and pass through the intended recipient passage
The feedback signal is sent to digital pre-distortion DPD processing meanss, so that the DPD processing meanss are entered to the feedback signal
Row feedback processing.
In the first possible implementation of first aspect, also include：
If the status information of the receiving channel in each other subsystem described is busy state, and other sons described
System includes the receiving channel of at least one time division multiplex TDD mode of operation, then obtain at least one TDD work respectively
The feedback cycle of the receiving channel of pattern；
If the feedback cycle of the receiving channel of at least one TDD mode of operations is less than the corresponding default threshold of the feedback signal
Value, then select receiving channel work of the feedback cycle less than the TDD mode of operations of the corresponding predetermined threshold value of the feedback signal
For intended recipient passage, and the feedback signal is sent to by DPD processing meanss by the intended recipient passage, for described
DPD processing meanss carry out feedback processing to the feedback signal.
The first possible implementation in conjunction with first aspect, in second possible implementation of first aspect, also wraps
Include：
If it is corresponding default that the feedback cycle of the receiving channel of each TDD mode of operation is all higher than the feedback signal
Threshold value, then select the receiving channel of a frequency division multiplexing FDD mode of operation logical as intended recipient from other subsystems described
Road, and the frequency according to the intended recipient passage, carry out Frequency mixing processing to the feedback signal, and by Frequency mixing processing after anti-
Feedback signal is sent to DPD processing meanss by the intended recipient passage, so that the DPD processing meanss are to the feedback signal
Carry out feedback processing.
In conjunction with a first aspect, in the third possible implementation of first aspect, also including：
If the status information of the receiving channel in each other subsystem described is busy state, and other sons described
Receiving channel in system is the receiving channel of FDD mode of operations, then select from the receiving channel of the FDD mode of operations
The receiving channel of one FDD mode of operation is used as intended recipient passage, and the frequency according to the intended recipient passage, to described
Feedback signal carries out Frequency mixing processing, and by Frequency mixing processing after feedback signal be sent at DPD by the intended recipient passage
Reason device, so that the DPD processing meanss carry out feedback processing to the feedback signal.
Second in conjunction with first aspect or the third possible implementation, the 4th kind in first aspect may realization side
In formula, the frequency according to the intended recipient passage carries out Frequency mixing processing to the feedback signal, including：
Obtain the bandwidth of operation value of the intended recipient passage；
According to the bandwidth of operation value, frequency deviation spacing value is obtained；
According to the frequency deviation spacing value, the frequency deviation parameter of the feedback signal is configured；
According to the frequency deviation parameter of the feedback signal, and Frequency mixing processing is carried out to the feedback signal.
In conjunction with any one possible implementation in the 4th kind of first aspect to first aspect, at the 5th kind of first aspect
In possible implementation, described the feedback signal is sent to by DPD processing meanss by the intended recipient passage before,
Methods described also includes：
Power attenuation process is carried out to the feedback signal, obtains the feedback signal after power attenuation is processed；Wherein, described
Feedback signal after power attenuation is processed is less than the default peak power of the intended recipient passage；
Then described the feedback signal is sent to by DPD processing meanss by the intended recipient passage, including：
Feedback signal after power attenuation process is sent to by DPD processing meanss by the intended recipient passage.
Embodiment of the present invention second aspect provides a kind of feedback signal processing meanss, it is characterised in that include：
Receiver module, for receiving the feedback signal of the sendaisle of subsystem to be feedback；
DPD is multiplexed judging module, for obtain in multi-input multi-output system in addition to the subsystem to be feedback its
The status information of the receiving channel in his subsystem；
If the status information of the receiving channel in other subsystems described at least one is idle state information, one is selected
The individual status information for idle state information receiving channel as intended recipient passage, and pass through the intended recipient passage
The feedback signal is sent to digital pre-distortion DPD processing meanss, so that the DPD processing meanss are entered to the feedback signal
Row feedback processing.
In the first possible implementation of second aspect, if DPD multiplexings judging module is additionally operable to described in each
The status information of the receiving channel in other subsystems is busy state, and other subsystems described include at least one
The receiving channel of TDD mode of operations, then DPD multiplexing judging module obtain at least one TDD mode of operations respectively
The feedback cycle of receiving channel；
If the feedback cycle of the receiving channel that the DPD multiplexings judging module is additionally operable at least one TDD mode of operations is little
In the corresponding predetermined threshold value of the feedback signal, then a feedback cycle is selected to be less than the corresponding predetermined threshold value of the feedback signal
TDD mode of operations receiving channel as intended recipient passage, and by the intended recipient passage by the feedback signal
DPD processing meanss are sent to, so that the DPD processing meanss carry out feedback processing to the feedback signal.
In conjunction with the first possible implementation of second aspect, described in second possible implementation of second aspect
If the feedback cycle of the receiving channel that DPD multiplexings judging module is additionally operable to each TDD mode of operation is all higher than the feedback
The corresponding predetermined threshold value of signal, then select the receiving channel of a FDD mode of operation from other subsystems described as target
Receiving channel；
Then described device also includes：Feedback signal frequency mixing module, for the frequency according to the intended recipient passage, to institute
Stating feedback signal carries out Frequency mixing processing；
Feedback signal after the DPD multiplexings judging module is additionally operable to Frequency mixing processing is sent out by the intended recipient passage
DPD processing meanss are given, so that the DPD processing meanss carry out feedback processing to the feedback signal.
In conjunction with second aspect, in the third possible implementation of second aspect, the DPD multiplexings judging module is also used
If the status information of the receiving channel in other subsystems described in each is in busy state, and other subsystems described
Receiving channel be the receiving channel of FDD mode of operations, then select one from the receiving channel of the FDD mode of operations
The receiving channel of FDD mode of operations is used as intended recipient passage；
Then described device also includes：Feedback signal frequency mixing module, for the frequency according to the intended recipient passage, to institute
Stating feedback signal carries out Frequency mixing processing；
Feedback signal after the DPD multiplexings judging module is additionally operable to Frequency mixing processing is sent out by the intended recipient passage
DPD processing meanss are given, so that the DPD processing meanss carry out feedback processing to the feedback signal.
Second in conjunction with second aspect or the third possible implementation, the 4th kind in second aspect may realization side
In formula, feedback signal frequency mixing module includes：
Acquiring unit, for obtaining the bandwidth of operation value of the intended recipient passage；And according to the bandwidth of operation value, obtain
Take frequency deviation spacing value；
Dispensing unit, for according to the frequency deviation spacing value, configuring the frequency deviation parameter of the feedback signal；
Mixing unit, for the frequency deviation parameter according to the feedback signal, carries out Frequency mixing processing to the feedback signal.
In conjunction with any one possible implementation in the 4th kind of second aspect to second aspect, at the 5th kind of second aspect
In possible implementation, also include：
Feedback signal attenuation module, for carrying out power attenuation process to the feedback signal, obtains power attenuation and processes
Feedback signal afterwards；Wherein, the feedback signal after the power attenuation is processed is default most less than the intended recipient passage
High-power；
Then the DPD multiplexings judging module is specifically for after the power attenuation is processed by the intended recipient passage
Feedback signal be sent to DPD processing meanss.
Feedback signal processing method and processing device provided in an embodiment of the present invention, in the sendaisle for receiving subsystem to be feedback
Feedback signal when, obtain the receiving channel in other subsystems in addition to subsystem to be feedback in multi-input multi-output system
Status information, if the status information of the receiving channel at least one other subsystem be idle state information, select one
Individual status information for idle state information receiving channel as intended recipient passage, and by the destination channel by the feedback letter
Number DPD processing meanss are sent to, so that the DPD processing meanss carry out feedback processing to the feedback signal, so as in time will feedback
Signal is sent to DPD processing meanss and completes signal feedback, solves
Feedback channel and cause the feedback signal of subsystems signal to cause the problem of time delay, further, since feedback signal can be used
The receiving channel of other subsystems, is not required to arrange the feedback channel for being only used for feedback for the feedback signal, therefore so that MIMO systems
System simple structure, and be effectively saved mimo system build cost.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are these
Some bright embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the flow chart of feedback signal processing method embodiment one of the present invention；
Fig. 2 is the flow chart of feedback signal processing method embodiment two of the present invention；
Fig. 3 is the flow chart of feedback signal processing method embodiment three of the present invention；
Fig. 4 is the flow chart of feedback signal processing method example IV of the present invention；
Fig. 5 is the structural representation of feedback signal processing meanss embodiment one of the present invention；
Fig. 6 is the structural representation of feedback signal processing meanss embodiment two of the present invention.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention is clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, to the embodiment of the present invention in technical scheme be clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention, rather than whole embodiments.Embodiment in based on the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Fig. 1 is the flow chart of feedback signal processing method embodiment one of the present invention.As shown in figure 1, the method includes：
S101, receives the feedback signal of the sendaisle of subsystem to be feedback.
In the present embodiment, a sendaisle coupling unit sending signal of subsystem to be feedback is used as the feedback letter
Number.
S102, obtains the receiving channel in other subsystems in multi-input multi-output system in addition to subsystem to be feedback
Status information.
In the present embodiment, multi-input multi-output system includes multiple subsystems, the subsystem can include FDD system and
TDD system, or, the subsystem is FDD system.In addition, each subsystem reports work at present at any time by initialisation
Status information, such that it is able to the status information according to current work, knows the state letter of the receiving channel in current sub-system
Breath and the status information of sendaisle, can also know the mode of operation of receiving channel and sendaisle, bandwidth of operation, system
Peak power that feedback delay is required and passage is allowed etc..
S103, if the status information of the receiving channel at least one other subsystem is idle state information, selects
One status information for idle state information receiving channel as intended recipient passage.
The feedback signal is sent to digital pre-distortion DPD processing meanss by the intended recipient passage, for this by S104
DPD processing meanss carry out feedback processing to the feedback signal.
In the present embodiment, when the feedback signal of sendaisle of subsystem to be feedback is received, multi input is obtained how defeated
The status information of the receiving channel gone out in other subsystems in system in addition to subsystem to be feedback, if at least one other son
The status information of the receiving channel in system is idle state information, then select a status information connecing for idle state information
Passage is received as intended recipient passage, and the feedback signal is sent to by DPD processing meanss by the destination channel, for this
DPD processing meanss carry out feedback processing to the feedback signal, so as to feedback signal is sent to DPD processing meanss completes letter in time
Number feedback, solves
Number feedback signal cause the problem of time delay, further, since feedback signal can use the receiving channel of other subsystems, be not required to for
The feedback signal arranges the feedback channel for being only used for feeding back, and therefore so that mimo system simple structure, and is effectively saved
Mimo system builds cost.
Fig. 2 is the flow chart of feedback signal processing method embodiment two of the present invention, in the present embodiment, how defeated with multi input
As a example by the subsystem gone out in system includes TDD subsystems and FDD subsystems, the technical scheme of the present embodiment, such as Fig. 2 is discussed in detail
Shown, the method includes：
S201, receives the feedback signal of the sendaisle of subsystem to be feedback.
S202, the reception obtained in other subsystems in multi-input multi-output system in addition to the subsystem to be feedback lead to
The status information in road.
S203, if the status information of the receiving channel in each other subsystem is busy state, and other subsystems
System includes the receiving channel of at least one TDD mode of operations, then obtain the receiving channel of at least one TDD mode of operations respectively
Feedback cycle.
It should be noted that the receiving channel of TDD mode of operations is for normally receiving the affiliated subsystem of the receiving channel
Working signal, therefore feedback signal when the receiving channel using TDD mode of operations completes to feed back, only in TDD Working moulds
The receiving channel is used in the free timeslot of the receiving channel of formula, and between the free timeslot of the receiving channel of TDD mode of operations is
Occur at regular intervals, the feedback delay of certain time, the time span of the feedback delay can be caused for feedback signal
The feedback cycle of the as receiving channel of TDD mode of operations.
S204, judges whether the feedback cycle of the receiving channel of at least one TDD mode of operations is corresponding less than feedback signal
Predetermined threshold value；If being less than, S205 is executed；If being more than, S207 is executed.
In the present embodiment, system to be feedback is provided with the maximum delay time of feedback signal permission in initialization, should
The maximum delay time is the corresponding predetermined threshold value of the feedback signal.
S205, selects a feedback cycle to lead to less than the reception of the TDD mode of operations of the corresponding predetermined threshold value of feedback signal
Road is used as intended recipient passage.
Feedback signal is sent to DPD processing meanss by the intended recipient passage, for DPD processing meanss pair by S206
Feedback signal carries out feedback processing.Terminate.
S207, selects the receiving channel of a FDD mode of operation from other subsystems as intended recipient passage.
S208, according to the frequency of the intended recipient passage, carries out Frequency mixing processing to the feedback signal；
In the present embodiment, it is preferred that above-mentioned Frequency mixing processing is carried out to feedback signal be specially：
The bandwidth of operation value of intended recipient passage is obtained, and frequency deviation spacing value is got according to the calculating of bandwidth of operation value；
According to frequency deviation spacing value, the frequency deviation parameter of feedback signal is configured；
According to the frequency deviation parameter of feedback signal, Frequency mixing processing is carried out to feedback signal.
S209, by Frequency mixing processing after feedback signal DPD processing meanss are sent to by the intended recipient passage, for
DPD processing meanss carry out feedback processing to feedback signal.
In the present embodiment, the feedback cycle of the receiving channel by obtaining at least one TDD mode of operations, according to the cycle
And the corresponding default threshold of feedback signal selects suitable receiving channel as intended recipient passage, and the reception of other subsystems is led to
Road is multiplexed with feedback channel, completes signal feedback so as to feedback signal will be made in time to be sent to DPD processing meanss, solves existing
A public DPD feedback channel is configured in technology in mimo systems and during so that the feedback signal of subsystems signal being caused
The problem that prolongs.
Fig. 3 is the flow chart of feedback signal processing method embodiment three of the present invention, in the present embodiment, how defeated with multi input
As a example by the subsystem gone out in system is FDD subsystems, the technical scheme of the present embodiment is discussed in detail, as shown in figure 3, the method
Including：
S301, receives the feedback signal of the sendaisle of subsystem to be feedback.
S302, the reception obtained in other subsystems in multi-input multi-output system in addition to the subsystem to be feedback lead to
The status information in road.
S303, if the status information of the receiving channel in each other subsystem is busy state, and other subsystems
System includes the receiving channel of FDD mode of operations, then select a FDD Working mould from the receiving channel of the FDD mode of operations
The receiving channel of formula is used as intended recipient passage.
S304, according to the frequency of the intended recipient passage, carries out Frequency mixing processing to the feedback signal.
S305, by Frequency mixing processing after feedback signal DPD processing meanss are sent to by the intended recipient passage, for this
DPD processing meanss carry out feedback processing to the feedback signal.
In the present embodiment, it is preferred that above-mentioned Frequency mixing processing is carried out to feedback signal be specially：
The bandwidth of operation value of intended recipient passage is obtained, and frequency deviation spacing value is got according to the calculating of bandwidth of operation value；
According to frequency deviation spacing value, the frequency deviation parameter of feedback signal is configured；
According to the frequency deviation parameter of feedback signal, Frequency mixing processing is carried out to feedback signal.
In the present embodiment, the reception of FDD mode of operations is selected to lead to according to the status information of subsystem each receiving channel
Road, and the receiving channel of other subsystems is multiplexed with by feedback channel by Frequency mixing processing, feedback signal is timely sent to
DPD processing meanss, solve
The feedback signal of system signal causes the problem of time delay.
Fig. 4 is the flow chart of feedback signal processing method example IV of the present invention.As shown in figure 4, the method includes：
S401, receives the feedback signal of the sendaisle of subsystem to be feedback.
S402, obtains the receiving channel in other subsystems in multi-input multi-output system in addition to subsystem to be feedback
Status information.
S403, judges that the status information of the receiving channel in other subsystems is believed for idle condition with the presence or absence of status information
Breath；If the status information of the receiving channel at least one other subsystem is idle state information, S404 is executed；If each
The status information of the receiving channel in other subsystems is busy state, then execute S407.
S404, selects the receiving channel that a status information is idle state information as intended recipient passage.
S405, carries out power attenuation process to the feedback signal.
Specifically, power attenuation process is carried out to the feedback signal, obtains the feedback signal after power attenuation is processed；Its
In, the feedback signal after the power attenuation is processed is less than the default peak power of the intended recipient passage.
S406, the feedback signal after processed by power attenuation are sent at digital pre-distortion DPD
Reason device, the feedback signal after processing to the power attenuation for the DPD processing meanss carry out feedback processing.Terminate.
S407, judges the receiving channel with the presence or absence of TDD mode of operations in other subsystems, if existing, executes S408；
If not existing, S411 is executed.
S408, obtains the feedback cycle of the receiving channel of the TDD mode of operations for existing.
S409, determines whether that the feedback cycle of the receiving channel of a TDD mode of operation is corresponding less than feedback signal
Predetermined threshold value；If at least one, S410 is executed；Otherwise, S411 is executed.
S410, selects a feedback cycle to lead to less than the reception of the TDD mode of operations of the corresponding predetermined threshold value of feedback signal
Road is used as intended recipient passage.Meanwhile, execute S405.
S411, selects the receiving channel of a FDD mode of operation from other subsystems as intended recipient passage.
S412, carries out Frequency mixing processing to feedback signal.Meanwhile, execute S405.
In the present embodiment, it is preferred that above-mentioned Frequency mixing processing is carried out to feedback signal be specially：
The bandwidth of operation value of intended recipient passage is obtained, and frequency deviation spacing value is got according to the calculating of bandwidth of operation value；
According to frequency deviation spacing value, the frequency deviation parameter of feedback signal is configured；
According to the frequency deviation parameter of feedback signal, Frequency mixing processing is carried out to feedback signal.
In the present embodiment, the power of feedback signal or the feedback signal for carrying out Frequency mixing processing is likely larger than intended recipient and leads to
The maximal received power that road is allowed, therefore before feedback signal to be sent to DPD processing meanss by intended recipient passage, palpus
The feedback signal for making feedback signal or carrying out Frequency mixing processing carries out power attenuation process, to ensure the feedback letter after the attenuation processing
Number be less than the default peak power of intended recipient passage.Specifically, when feedback signal or the feedback signal of Frequency mixing processing is carried out
Power more than intended recipient passage allow maximal received power when, power attenuation processing procedure to the feedback signal or is carried out
The feedback signal of Frequency mixing processing adds certain attenuation, makes feedback signal or carries out the power symbol of the feedback signal of Frequency mixing processing
Close the restriction of intended recipient passage；Lead to when the power of feedback signal or the feedback signal for carrying out Frequency mixing processing is not more than intended recipient
Road allow maximal received power when, then power attenuation process to feedback signal or carry out Frequency mixing processing feedback signal add zero
Attenuation.
In the present embodiment, by obtaining in other subsystems in multi-input multi-output system in addition to subsystem to be feedback
Receiving channel status information, select suitable receiving channel as intended recipient passage, the reception of other subsystems led to
Road is multiplexed with feedback channel, solves
The feedback signal of individual subsystem signals causes the problem of time delay.
Fig. 5 is the structural representation of feedback signal processing meanss embodiment one of the present invention.As shown in figure 5, the device includes：
Receiver module 501 and DPD multiplexing judging modules 502；Wherein, receiver module 501 be used for receive subsystem to be feedback transmission lead to
The feedback signal in road；DPD be multiplexed judging module 502, for obtain in multi-input multi-output system except the subsystem to be feedback with
The status information of the receiving channel in other outer subsystems；If the state of the receiving channel at least one other subsystems
Information is idle state information, then select the status information logical as intended recipient for the receiving channel of idle state information
Road, and the feedback signal is sent to by digital pre-distortion DPD processing meanss by the intended recipient passage, for the DPD process
Device carries out feedback processing to the feedback signal.
The feedback signal processing meanss of the present embodiment can execute the technical scheme of embodiment of the method shown in Fig. 1, and which is realized
Principle is similar, and here is omitted.
In the present embodiment, receiver module when the feedback signal of sendaisle of subsystem to be feedback is received, sentence by DPD multiplexings
Certainly module obtains the state of the receiving channel in other subsystems in multi-input multi-output system in addition to subsystem to be feedback
Information, if the status information of the receiving channel at least one other subsystem is idle state information, selects a state
Information for idle state information receiving channel as intended recipient passage, and the feedback signal is sent by the destination channel
DPD processing meanss are given, so that the DPD processing meanss carry out feedback processing to the feedback signal, so as to send out feedback signal in time
Give DPD processing meanss and complete signal feedback, solve and lead to
Road and cause the feedback signal of subsystems signal to cause the problem of time delay.
Fig. 6 is the structural representation of feedback signal processing meanss embodiment two of the present invention.In above-mentioned embodiment illustrated in fig. 5
On the basis of, as shown in fig. 6, DPD multiplexing judging modules 502, if the state of the receiving channel being additionally operable in each other subsystem
Information is busy state, and other subsystems include the receiving channel of at least one TDD mode of operations, then DPD multiplexings
Judging module 502 obtains the feedback cycle of the receiving channel of at least one TDD mode of operations respectively；
If above-mentioned DPD multiplexings judging module 502 is additionally operable to the feedback cycle of the receiving channel of at least one TDD mode of operations
The corresponding predetermined threshold value of feedback signal is less than, then selects TDD of the feedback cycle less than the corresponding predetermined threshold value of feedback signal
The receiving channel of mode of operation is used as intended recipient passage, and feedback signal is sent to DPD process by intended recipient passage
Device, so that DPD processing meanss carry out feedback processing to feedback signal.
Preferably, if when DPD is multiplexed the feedback week that judging module 502 is additionally operable to the receiving channel of each TDD mode of operation
Phase is all higher than the corresponding predetermined threshold value of feedback signal, then select the receiving channel of a FDD mode of operation from other subsystems
During as intended recipient passage, the device also includes：Feedback signal frequency mixing module 503, for the frequency according to intended recipient passage
Rate, carries out Frequency mixing processing to feedback signal；Above-mentioned DPD is multiplexed the feedback signal after judging module 502 is additionally operable to Frequency mixing processing
DPD processing meanss are sent to by intended recipient passage, so that DPD processing meanss carry out feedback processing to feedback signal.
If in addition, also, it should be noted being additionally operable in each other subsystem when above-mentioned DPD is multiplexed judging module 502
The receiving channel that is in busy state, and other subsystems of status information of receiving channel be FDD mode of operations
Receiving channel, then select the receiving channel of a FDD mode of operation from the receiving channel of FDD mode of operations as intended recipient
During passage, the feedback signal frequency mixing module 503 is additionally operable to the frequency according to intended recipient passage, and feedback signal is carried out at mixing
Reason；Feedback signal after above-mentioned DPD multiplexings judging module 502 is additionally operable to Frequency mixing processing is sent to by intended recipient passage
DPD processing meanss, so that DPD processing meanss carry out feedback processing to feedback signal.
It is more highly preferred to, above-mentioned feedback signal frequency mixing module 503 also includes：Acquiring unit 513, dispensing unit 523 and mixed
Frequency unit 533；Wherein, acquiring unit 513, for obtaining the bandwidth of operation value of intended recipient passage, and according to bandwidth of operation value,
Obtain frequency deviation spacing value；Dispensing unit 523, for according to frequency deviation spacing value, configuring the frequency deviation parameter of the feedback signal；Mixing is single
Unit 533, for the frequency deviation parameter according to the feedback signal, carries out Frequency mixing processing to the feedback signal.
It is more highly preferred to, above-mentioned feedback signal processing meanss also include feedback signal attenuation module 504, for feedback letter
Power attenuation process number is carried out, the feedback signal after power attenuation is processed is obtained；Wherein, the feedback signal after power attenuation is processed
It is less than the default peak power of intended recipient passage；
Feedback letter after then DPD multiplexings judging module 502 is specifically for being processed power attenuation by intended recipient passage
Number it is sent to DPD processing meanss.
In apparatus of the present invention embodiment, the corresponding above-mentioned each method embodiment of modules will not be described here.
In the present embodiment, DPD multiplexing judging module by obtain multi-input multi-output system in except subsystem to be feedback with
The status information of the receiving channel in other outer subsystems, selects suitable receiving channel as intended recipient passage, by which
He is multiplexed with feedback channel at the receiving channel of subsystem, makes feedback signal timely be sent to DPD processing meanss, solves existing
A public DPD feedback channel is configured in technology in mimo systems and during so that the feedback signal of subsystems signal being caused
The problem that prolongs, further, since feedback signal can use the receiving channel of other subsystems, is not required to arrange for the feedback signal and only uses
In the feedback channel of feedback, therefore so that mimo system simple structure, and be effectively saved mimo system build cost.
One of ordinary skill in the art will appreciate that：Realize that all or part of step of above-mentioned each method embodiment can be led to
Cross the related hardware of programmed instruction to complete.Aforesaid program can be stored in a computer read/write memory medium.The journey
Sequence upon execution, executes the step of including above-mentioned each method embodiment；And aforesaid storage medium includes：ROM, RAM, magnetic disc or
Person's CD etc. is various can be with the medium of store program codes.
Finally it should be noted that：Various embodiments above only in order to technical scheme to be described, rather than a limitation；To the greatest extent
Pipe has been described in detail to the present invention with reference to foregoing embodiments, it will be understood by those within the art that：Its according to
So the technical scheme described in foregoing embodiments can be modified, or which part or all technical characteristic are entered
Row equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. a kind of feedback signal processing method, it is characterised in that include：
Receive the feedback signal of the sendaisle of subsystem to be feedback；
Obtain the shape of the receiving channel in other subsystems in multi-input multi-output system in addition to the subsystem to be feedback
State information；
If the status information of the receiving channel in other subsystems described at least one is idle state information, an institute is selected
The receiving channel that status information is stated for idle state information is used as intended recipient passage, and passes through the intended recipient passage by institute
State feedback signal and be sent to digital pre-distortion DPD processing meanss, so that the DPD processing meanss are carried out instead to the feedback signal
Feedback is processed；
If the status information of the receiving channel in each other subsystem described is busy state, and other subsystems described
Include the receiving channel of at least one time division multiplex TDD mode of operation, then obtain at least one TDD mode of operations respectively
Receiving channel feedback cycle；
If the feedback cycle of the receiving channel of at least one TDD mode of operations is less than the corresponding predetermined threshold value of the feedback signal,
Feedback cycle receiving channel less than the TDD mode of operation of the feedback signal corresponding predetermined threshold value is then selected as mesh
Mark receiving channel, and the feedback signal is sent to by DPD processing meanss by the intended recipient passage, for the DPD
Processing meanss carry out feedback processing to the feedback signal.
2. feedback signal processing method according to claim 1, it is characterised in that also include：
If the feedback cycle of the receiving channel of each TDD mode of operation is all higher than the corresponding default threshold of the feedback signal
Value, then select the receiving channel of a frequency division multiplexing FDD mode of operation from other subsystems described as intended recipient passage,
And the frequency according to the intended recipient passage, carry out Frequency mixing processing to the feedback signal, and by Frequency mixing processing after feedback
Signal is sent to DPD processing meanss by the intended recipient passage, so that the DPD processing meanss are entered to the feedback signal
Row feedback processing.
3. feedback signal processing method according to claim 1, it is characterised in that also include：
If the status information of the receiving channel in each other subsystem described is busy state, and other subsystems described
In receiving channel be the receiving channel of FDD mode of operations, then select one from the receiving channel of the FDD mode of operations
The receiving channel of FDD mode of operations is used as intended recipient passage, and the frequency according to the intended recipient passage, to the feedback
Signal carries out Frequency mixing processing, and by Frequency mixing processing after feedback signal DPD be sent to by the intended recipient passage process dress
Put, so that the DPD processing meanss carry out feedback processing to the feedback signal.
4. the feedback signal processing method according to Claims 2 or 3, it is characterised in that described according to the intended recipient
The frequency of passage, carries out Frequency mixing processing to the feedback signal, including：
Obtain the bandwidth of operation value of the intended recipient passage；
According to the bandwidth of operation value, frequency deviation spacing value is obtained；
According to the frequency deviation spacing value, the frequency deviation parameter of the feedback signal is configured；
According to the frequency deviation parameter of the feedback signal, Frequency mixing processing is carried out to the feedback signal.
5. the feedback signal processing method according to any one of claims 1 to 3, it is characterised in that described by institute
State before the feedback signal is sent to DPD processing meanss by intended recipient passage, methods described also includes：
Power attenuation process is carried out to the feedback signal, obtains the feedback signal after power attenuation is processed；Wherein, the power
Feedback signal after attenuation processing is less than the default peak power of the intended recipient passage；
Then described the feedback signal is sent to by DPD processing meanss by the intended recipient passage, including：
Feedback signal after power attenuation process is sent to by DPD processing meanss by the intended recipient passage.
6. a kind of feedback signal processing meanss, it is characterised in that include：
Receiver module, for receiving the feedback signal of the sendaisle of subsystem to be feedback；
DPD is multiplexed judging module, for obtaining other sons in multi-input multi-output system in addition to the subsystem to be feedback
The status information of the receiving channel in system；If the status information of the receiving channel in other subsystems described at least one is sky
Not busy status information, then select the receiving channel that a status information is idle state information as intended recipient passage, and
The feedback signal is sent to by digital pre-distortion DPD processing meanss by the intended recipient passage, for the DPD process
Device carries out feedback processing to the feedback signal；
If the status information of the receiving channel that the DPD multiplexings judging module is additionally operable in each other subsystem described is non-
Idle condition, and other subsystems described include the receiving channel of at least one TDD mode of operations, then the DPD multiplexings are sentenced
Certainly module obtains the feedback cycle of the receiving channel of at least one TDD mode of operations respectively；
If the feedback cycle of the receiving channel that the DPD multiplexings judging module is additionally operable at least one TDD mode of operations is less than institute
The corresponding predetermined threshold value of feedback signal is stated, then a feedback cycle is selected less than the corresponding predetermined threshold value of the feedback signal
The receiving channel of TDD mode of operations is used as intended recipient passage, and sends out the feedback signal by the intended recipient passage
DPD processing meanss are given, so that the DPD processing meanss carry out feedback processing to the feedback signal.
7. feedback signal processing meanss according to claim 6, it is characterised in that the DPD multiplexings judging module is also used
If being all higher than the corresponding predetermined threshold value of the feedback signal in the feedback cycle of the receiving channel of each TDD mode of operation,
The receiving channel of a FDD mode of operation is then selected from other subsystems described as intended recipient passage；
Then described device also includes：Feedback signal frequency mixing module, for the frequency according to the intended recipient passage, to described anti-
Feedback signal carries out Frequency mixing processing；
Feedback signal after the DPD multiplexings judging module is additionally operable to Frequency mixing processing is sent to by the intended recipient passage
DPD processing meanss, so that the DPD processing meanss carry out feedback processing to the feedback signal.
8. feedback signal processing meanss according to claim 6, it is characterised in that the DPD multiplexings judging module is also used
If the status information of the receiving channel in other subsystems described in each is in busy state, and other subsystems described
Receiving channel be the receiving channel of FDD mode of operations, then select one from the receiving channel of the FDD mode of operations
The receiving channel of FDD mode of operations is used as intended recipient passage；
Then described device also includes：Feedback signal frequency mixing module, for the frequency according to the intended recipient passage, to described anti-
Feedback signal carries out Frequency mixing processing；
Feedback signal after the DPD multiplexings judging module is additionally operable to Frequency mixing processing is sent to by the intended recipient passage
DPD processing meanss, so that the DPD processing meanss carry out feedback processing to the feedback signal.
9. feedback signal processing meanss according to claim 7 or 8, it is characterised in that the feedback signal frequency mixing module
Including：
Acquiring unit, for obtaining the bandwidth of operation value of the intended recipient passage；And according to the bandwidth of operation value, obtain frequency
Inclined spacing value；
Dispensing unit, for according to the frequency deviation spacing value, configuring the frequency deviation parameter of the feedback signal；
Mixing unit, for the frequency deviation parameter according to the feedback signal, carries out Frequency mixing processing to the feedback signal.
10. feedback signal processing meanss according to any one of claim 6～8, it is characterised in that also include：
Feedback signal attenuation module, for carrying out power attenuation process to the feedback signal, after obtaining power attenuation process
Feedback signal；Wherein, the feedback signal after the power attenuation is processed is less than the default maximum work of the intended recipient passage
Rate；
Then the DPD multiplexings judging module is specifically for anti-after the power attenuation is processed by the intended recipient passage
Feedback signal is sent to DPD processing meanss.
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| CN201210519338.9A CN103856427B (en) | 2012-12-06 | 2012-12-06 | Feedback signal processing method and processing device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101272155A (en) * | 2007-03-20 | 2008-09-24 | 中兴通讯股份有限公司 | TDD mode digital predistortion power amplifier |
| US7529524B1 (en) * | 2005-10-26 | 2009-05-05 | L3 Communications Corporation | Adaptive power amplifier linearization in time division duplex communication systems |
| CN101534133A (en) * | 2008-03-10 | 2009-09-16 | ***通信集团公司 | Wireless transceiver |
| CN101621304A (en) * | 2009-07-27 | 2010-01-06 | 普天信息技术研究院有限公司 | Transceiver |
| CN101686069A (en) * | 2008-09-24 | 2010-03-31 | 大唐移动通信设备有限公司 | Device and method for calibrating predistortion in time division mobile communication system |
| CN102118176A (en) * | 2009-12-31 | 2011-07-06 | 中兴通讯股份有限公司 | Digital transreceiver of time division duplex system |
| CN102647378A (en) * | 2011-02-18 | 2012-08-22 | 富士通株式会社 | Pre-distortion device, pre-distortion method and transmitter/ receiver system |
-
2012
- 2012-12-06 CN CN201210519338.9A patent/CN103856427B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7529524B1 (en) * | 2005-10-26 | 2009-05-05 | L3 Communications Corporation | Adaptive power amplifier linearization in time division duplex communication systems |
| CN101272155A (en) * | 2007-03-20 | 2008-09-24 | 中兴通讯股份有限公司 | TDD mode digital predistortion power amplifier |
| CN101534133A (en) * | 2008-03-10 | 2009-09-16 | ***通信集团公司 | Wireless transceiver |
| CN101686069A (en) * | 2008-09-24 | 2010-03-31 | 大唐移动通信设备有限公司 | Device and method for calibrating predistortion in time division mobile communication system |
| CN101621304A (en) * | 2009-07-27 | 2010-01-06 | 普天信息技术研究院有限公司 | Transceiver |
| CN102118176A (en) * | 2009-12-31 | 2011-07-06 | 中兴通讯股份有限公司 | Digital transreceiver of time division duplex system |
| CN102647378A (en) * | 2011-02-18 | 2012-08-22 | 富士通株式会社 | Pre-distortion device, pre-distortion method and transmitter/ receiver system |
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|---|---|
| CN103856427A (en) | 2014-06-11 |
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