CN103457889A - Data processing method and device based on multi-core multi-channel RRU and RRU - Google Patents
Data processing method and device based on multi-core multi-channel RRU and RRU Download PDFInfo
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Abstract
The invention discloses a data processing method and device based on a multi-core multi-channel RRU and the RRU. The method comprises the steps that in a set cycle, the current operation states of a current digital pre-distortion (DPD) core and a selected first DPD core to be communicated except the current DPD core are detected; a service channel corresponding to the current DPD core is communicated with a feedback channel, service channels corresponding to all of the DPD cores share the feedback channel; when the current DPD core is detected to be in a pre-distortion state, the feedback channel is communicated with a service channel corresponding to the first DPD core to be communicated; according to the current operation state of the first DPD core to be communicated, data which need to be collected and operation which needs to be carried out are determined. Data processing efficiency can be improved.
Description
Technical field
The present invention relates to communication technical field, espespecially a kind of data processing method, device and radio frequency remote unit RRU based on many DPD core multi-channel radio remote unit RRU.
Background technology
Time-division Long Term Evolution (Time Division-Long Term Evolution, TD-LTE) technology is the 4th third-generation mobile communication (4 of evolution on TD SDMA (Time Division-Synchronous Code Division Multiple Access, TD-SCDMA) technical foundation
thgeneration, 4G) technology, the 4G network adopts distributed base station mostly.Distributed base station is divided into two functional units to traditional macro base station equipment according to function, the functions such as the base band of base station, master control, transmission, clock is integrated in to Base Band Unit (Base Band Unit, BBU) upper, and the BBU volume is little, installation site is flexible; Radio frequency in transceiver, power amplifier etc. is integrated in to Remote Radio Unit (Radio Remote Unit, RRU), and RRU is arranged on antenna end.Adopt optical fiber transmission signal between BBU and RRU.When network design, BBU, core net and wireless network control apparatus are concentrated and be deployed in machine room, by optical fiber, with the RRU of planning website deploy, be connected, complete the network coverage, a BBU can support a plurality of RRU.Therefore, utilize the distributed base station can be in the situation that machine room or Host equipment room are undesirable, economy realizes the network coverage rapidly.
Equipment in existing distributed base station adopts the multi-service passage technology mostly, to improve power amplification efficiency in order meeting, keep the power amplifier linearity, to meet spectral emission module etc. requirement, multi-service passage RRU (also can be described as multichannel RRU) adopts digital pre-distortion (Digital Pre-Distortion, DPD) technology usually.Usually need to carry out image data for power amplifier provides feedback path while adopting the DPD technology, send to DPD core to carry out the pre-distortion algorithms processing data of collection so that carry out the self adaptation adjusting of linearisation coefficient, make under different output power and environmental condition and all can keep good linearisation effect.In order to reduce RRU volume, cost-saving, a plurality of service channels share a feedback path usually to DPD core feedback data, a plurality of service channels also can connect a DPD core, this just needs to switch each service channel by control and is communicated with this feedback path, gather the data on the feedback path of each service channel, thereby complete predistortion operation.
Realize the circuit theory diagrams of above-mentioned pre-distortion as shown in Figure 1, master control central processing unit (Center Processing Unit, CPU) controlling a plurality of DPD core moves in turn, each DPD core connects two service channels, master cpu is controlled the service switchover passage and is communicated with feedback path and realizes data acquisition and predistortion operation by controlling field programmable gate array (Field-Programmable Gate Array, FPGA).When DPD core during in running status, likely waiting for image data, also likely in deal with data, namely carry out predistortion operation, in the prior art scheme, the DPD core that master cpu is all according to the setting cycle poll, if current DPD core when waiting for the image data state, a service channel choosing this current DPD core is communicated with feedback path, carry out data acquisition, and the data of collection are passed to this current DPD core carry out predistortion operation; If current DPD core when predistortion operation, the next DPD core of poll.In existing this data processing method, owing to being according to each DPD core of setting cycle poll, some DPD endorse and can that is to say and can not guarantee that all DPD core is all in predistortion operation for a long time in waiting for the state of image data, and this efficiency that just makes data process is very low.
Therefore, the existing data processing method based on multinuclear multichannel RRU, when carrying out the data processing, efficiency is very low.
Summary of the invention
The embodiment of the present invention provides a kind of data processing method, device and RRU based on multinuclear multichannel RRU, in order to solve in prior art, exist based on multinuclear multichannel RRU deal with data the time, the low-down problem of efficiency.
A kind of data processing method based on multinuclear multichannel RRU comprises:
In setting cycle, detect the current running status of Contemporary Digital predistortion DPD core and the first DPD core to be communicated with except described current DPD core of choosing; Wherein, described current DPD checks a service channel of answering and is communicated with feedback path, and all DPD check the service channel of answering and share described feedback path;
When described current DPD core being detected in the predistortion operation state, described feedback network is checked to a service channel of answering with the described first DPD to be communicated with and be communicated with; And, according to the current running status of the described first DPD core to be communicated with, determine and need the data that gather and the computing that need to carry out.
A kind of data processing equipment based on multinuclear multichannel RRU comprises:
Detecting unit, in setting cycle, detect the current running status of Contemporary Digital predistortion DPD core and the first DPD core to be communicated with except described current DPD core of choosing; Wherein, described current DPD checks a service channel of answering and is communicated with feedback path, and all DPD check the service channel of answering and share described feedback path;
Connected unit, for described current DPD core being detected when described detecting unit when the predistortion operation state, check a service channel of answering by described feedback network with the described first DPD to be communicated with and be communicated with;
Determining unit, for the current running status of the described first DPD core to be communicated with of detecting according to described detecting unit, determine and need the data that gather and the computing that need to carry out.
A kind of radio frequency remote unit RRU, comprise the above-mentioned data processing equipment based on multinuclear multichannel RRU.
Beneficial effect of the present invention is as follows:
The data processing method based on multinuclear multichannel RRU, device and RRU that the embodiment of the present invention provides, in setting cycle, detect the current running status of Contemporary Digital predistortion DPD core and the first DPD core to be communicated with except described current DPD core of choosing; Wherein, described current DPD checks a service channel of answering and is communicated with feedback path, and all DPD check the service channel of answering and share described feedback path; When described current DPD core being detected in the predistortion operation state, described feedback network is checked to a service channel of answering with the described first DPD to be communicated with and be communicated with; And, according to the current running status of the described first DPD core to be communicated with, determine and need the data that gather and the computing that need to carry out.This scheme is in setting cycle, detect the current running status of current DPD core and the first DPD core to be communicated with simultaneously, if current DPD core is in the predistortion operation state, immediately the first DPD to be communicated with being checked to the service channel of answering is communicated with feedback path, and carry out data collection and data and process, so not only guarantee that current DPD core is in the predistortion operation state, can guarantee that other DPD core is also in the predistortion operation state simultaneously, thereby raising data-handling efficiency, avoided in prior art needing all DPD core of cycle polling, the DPD core be not polled to can only be in waiting for the state in image data stage.
The accompanying drawing explanation
Fig. 1 is the circuit theory diagrams that in prior art, multinuclear multichannel RRU realizes pre-distortion;
The flow chart that Fig. 2 is the data processing method based on multinuclear multichannel RRU in the embodiment of the present invention;
The flow chart that Fig. 3 is standing wave computing of the prior art;
The structural representation that Fig. 4 is the data processing equipment based on multinuclear multichannel RRU in the embodiment of the present invention;
The structural representation that Fig. 5 is the preferred data processing equipment based on multinuclear multichannel RRU in the embodiment of the present invention.
Embodiment
For in prior art, exist based on multinuclear multichannel RRU deal with data the time efficiency low-down problem, the embodiment of the present invention provides a kind of data processing method based on multinuclear multichannel RRU, as shown in Figure 2, concrete execution step is as follows for the flow process of the method:
S10: in setting cycle, detect the current running status of current DPD core and the first DPD core to be communicated with except described current DPD core of choosing; Wherein, current DPD checks a service channel of answering and is communicated with feedback path, and all DPD check the service channel of answering and share feedback path.
In a RRU, a DPD core can be set, a plurality of DPD core also can be set, a DPD can be set to be checked and answers a service channel, also can arrange that a DPD checks should a plurality of service channels, and the data processing method in the embodiment of the present invention is based on multinuclear multichannel RRU, below with RRU, comprises 4 DPD cores, each DPD checks and answers 2 service channels, and 8 shared feedback paths of service channels are that example describes.
The purpose of the present embodiment is to make all DPD core all in the predistortion operation state in order to realize as far as possible, thereby guaranteed efficiency is the highest, so not only will detect the current running status of current DPD core, needs to detect the current running status of the first DPD core to be communicated with simultaneously.
The current running status of current DPD core can be the image data state or the data that collect are carried out to predistortion operation state (also can be called cutting state), the current running status of DPD core to be communicated with can be wait for the image data state or the data that collect are carried out to the predistortion operation state, in all DPD core, except when front DPD core, can in other DPD core, choose one as the first DPD core to be communicated with, can specify corresponding rule to be chosen.
Can be according to the actual needs setting cycle, if the arithmetic speed of DPD core is very fast, that setting cycle can be set is longer; Otherwise what setting cycle can be arranged is shorter, just for example understand a kind of actual needs here, other the foundation that arranges here repeats no more.Specifically 1s, 2s, 3s etc. can be set.
S11: when current DPD core being detected in the predistortion operation state, feedback network DPD to be communicated with first checked to a service channel of answering and be communicated with.
When current DPD core being detected in the predistortion operation state, now feedback network there is no need with current DPD core, to be communicated with again, directly disconnect feedback network and current DPD and check the service channel of answering, feedback network DPD to be communicated with first checked to a service channel of answering and be communicated with.
Continue to continue to use example, suppose that DPD core 1 is for current DPD core, DPD core 2 is the first DPD core to be communicated with, the service channel 1 of DPD core 1 correspondence is communicated with feedback path, when DPD core 1 being detected in the predistortion operation state, just can disconnect service channel and the feedback path of DPD core 1 correspondence, the service channel service channel 3 of DPD core 2 correspondences or service channel 4 are communicated with and get final product with feedback path.Concrete, can in this setting cycle, service channel 3 be communicated with feedback path, so once upper, DPD core 2 during as current DPD core, is communicated with service channel 4 to get final product with feedback path.Can certainly adopt other mode, here repeat no more.
S12: according to the current running status of the first DPD core to be communicated with, determine and need the data that gather and the computing that need to carry out.
By first after being communicated with DPD and checking the service channel of answering and feedback path is communicated with, just can image data and carried out corresponding computing for the data that gather.
This scheme is in setting cycle, detect the current running status of current DPD core and the first DPD core to be communicated with simultaneously, if current DPD core is in the predistortion operation state, immediately the first DPD to be communicated with being checked to the service channel of answering is communicated with feedback path, and carry out data collection and data and process, so not only guarantee that current DPD core is in the predistortion operation state, can guarantee that other DPD core is also in the predistortion operation state simultaneously, thereby raising data-handling efficiency, avoided in prior art needing all DPD core of cycle polling, the DPD core be not polled to can only be in waiting for the state in image data stage.
Preferably, before the current running status of the current DPD core of the detection in above-mentioned S10 and the first DPD core to be communicated with, also comprise: when RRU receives the data transmission instruction, according to all DPD core of sequencing periodic polls in the DPD core sequence table of setting up in advance, initialization also starts the DPD core be polled to.
In distributed base station, when BBU needs RRU to send data, at first can send data to RRU and send instruction, notice RRU carries out data to its unit and sends preparation, when RRU receives this data transmission instruction, can be according to all DPD core of sequencing periodic polls in the DPD core sequence table of setting up in advance, initialization also starts the DPD core be polled to, because the RRU main control unit at every turn can only initialization and start a DPD core, so need to carry out successively the operation of initialization, startup to DPD core.Initialization DPD core comprises the renewal coefficient, initial parameter etc. is set, and after the DPD core initialization to being polled to completes, just can start DPD core, and the DPD core after startup is in waiting for the state of image data.
Setting up in advance the sequence table of DPD core here is in order to record the order of all DPD cores of poll, can certainly adopt other mode to record the order of all DPD cores of poll, for example give each DPD core allocated code sign, size according to code identification is carried out poll, also have a lot of modes can record polling sequence, here repeat no more.
Can set polling cycle according to actual needs, if when the arithmetic speed of DPD core is very fast, that setting cycle can be set is longer; Otherwise what setting cycle can be arranged is shorter, just for example understand a kind of actual needs here, other the foundation that arranges here repeats no more.Specifically 1s, 2s, 3s etc. can be set.
Concrete, the process of choosing the first DPD core to be communicated with except current DPD core in above-mentioned S10 specifically comprises:
When monitoring being communicated with number of times and being less than setting threshold of the service channel that has at least a DPD to check to answer and feedback path except current DPD core, choose be communicated with the number of times minimum DPD core as the first DPD core to be communicated with.
When monitoring DPD except current DPD core and check being communicated with number of times and all being not less than setting threshold of the service channel of answering and feedback path, if have a DPD core at least in waiting for the image data state except current DPD core, choose the DPD core of connection number of times minimum as the first DPD core to be communicated with; If the DPD core except current DPD core, all in the predistortion operation state, is chosen the DPD core of current DPD core back as the first DPD core to be communicated with according to the sequence table of DPD core.
Here be only to have enumerated a kind of method of choosing the first DPD core to be communicated with, also can not monitor DPD except current DPD core and check being communicated with number of times and whether being less than setting threshold of the service channel of answering and feedback path, directly according to the sequence table of DPD core, choose the DPD core of current DPD core back as the first DPD core to be communicated with; Can certainly adopt other existing method, here repeat no longer one by one.
Concrete, the current running status according to the first DPD core to be communicated with in above-mentioned S12, determine and need the data that gather and the computing that need to carry out, specifically comprise: if the first DPD core to be communicated with is in waiting for the image data state, on feedback path, gather for after the data and the data for the standing wave computing of predistortion operation, the data for predistortion operation that collect are passed to the first DPD core to be communicated with and carry out predistortion operation, and the data for the standing wave computing that will collect pass to the standing wave arithmetic unit and carry out the standing wave computing; If the first DPD core to be communicated with, in the predistortion operation state, gathers for after the data of standing wave computing on feedback path, the data that collect are passed to the standing wave arithmetic unit and carry out the standing wave computing.
In prior art, the required data of standing wave computing are to gather by special reflection channel, as shown in Figure 3, due to needs, for all service channels, corresponding reflection channel carries out data acquisition to the process of existing standing wave computing one by one, and the same like this efficiency that can cause data to process is lower.The data processing method of the multinuclear multichannel RRU of the embodiment of the present invention not only can gather the data for predistortion operation on feedback path, can also on feedback/reflection channel, gather the data for the standing wave computing, so just can realize gathering two class data on a feedback network simultaneously, so also can improve the efficiency of deal with data.
When first, wait being communicated with DPD core when waiting for the image data state, on feedback path, gather for the data of predistortion budget with for the data of standing wave computing; When being communicated with DPD core in the predistortion operation state, no longer gather the data for predistortion operation when first, the data that only gather for the standing wave computing get final product.
The data for predistortion operation that then will gather pass to the first DPD core to be communicated with and carry out predistortion operation, to pass to for the data of standing wave computing the standing wave arithmetic unit and carry out the standing wave computing and get final product, wherein predistortion operation and standing wave computing can adopt existing method to carry out computing.
Concrete, the above-mentioned data for predistortion operation comprise feedback path data and forward path data, for the data of standing wave computing, comprise the first forward power, reflection power, the second forward power and feedback power.
Concrete, the above-mentioned data for predistortion operation that will collect pass to the first DPD core to be communicated with and carry out predistortion operation, specifically comprise: the feedback path data that collect and forward path data are passed to the first DPD core to be communicated with and carry out predistortion operation; The data for the standing wave computing that collect are passed to the standing wave arithmetic unit and carry out the standing wave computing, specifically comprise: first forward power that will collect, reflection power, the second forward power and feedback power pass to the standing wave arithmetic unit and carry out the calculating of standing wave value, when the standing wave value calculated is greater than setting threshold, produces the standing wave alarm and close power amplifier.
Feedback path data and forward path data are for carrying out predistortion operation, and this need to be processed by the first DPD core to be communicated with, and therefore the feedback path data that collect and forward path data are passed to the first DPD core to be communicated with and carry out predistortion operation.The first forward power, reflection power, the second forward power and feedback power are for carrying out the standing wave computing; the first forward power, reflection power, the second forward power and the feedback power collected passed to the standing wave arithmetic unit and carry out the calculating of standing wave value; when the standing wave value calculated is greater than setting threshold; that is to say the signal of launching by service channel; when major part is reflected back; just need to produce the standing wave alarm; and power amplifier is closed, thereby can protect power amplifier, avoid power amplifier to damage.
Based on same inventive concept, the embodiment of the present invention provides a kind of data processing equipment based on multinuclear multichannel RRU, and this device can be arranged in radio frequency remote unit RRU, and structure as shown in Figure 4, comprising:
Detecting unit 40, in setting cycle, detect the current running status of Contemporary Digital predistortion DPD core and the first DPD core to be communicated with except described current DPD core of choosing; Wherein, current DPD checks a service channel of answering and is communicated with feedback path, and all DPD check the service channel of answering and share feedback path.
Connected unit 41, for current DPD core being detected when detecting unit 40 when the predistortion operation state, check a service channel of answering by feedback network DPD to be communicated with first and be communicated with.
Determining unit 42, for the current running status of the first DPD core to be communicated with of detecting according to detecting unit 40, determine and need the data that gather and the computing that need to carry out.
Preferably, the above-mentioned data processing equipment based on multinuclear multichannel RRU, structure as shown in Figure 5, also comprise: poll units 43, for when radio frequency remote unit RRU receives the data transmission instruction, according to all DPD core of sequencing periodic polls in the DPD core sequence table of setting up in advance, initialization also starts the DPD core be polled to.
Preferably, the above-mentioned data processing equipment based on multinuclear multichannel RRU, also comprise and choose unit 44, be used for: when monitoring being communicated with number of times and being less than setting threshold of the service channel that has at least a DPD to check to answer and feedback path except current DPD core, choose be communicated with the number of times minimum DPD core as the first DPD core to be communicated with; When monitoring DPD except current DPD core and check being communicated with number of times and all being not less than setting threshold of the service channel of answering and feedback path, if have a DPD core at least in waiting for the image data state except current DPD core, choose the DPD core of connection number of times minimum as the first DPD core to be communicated with; If the DPD core except current DPD core, all in the predistortion operation state, is chosen the DPD core of current DPD core back as the first DPD core to be communicated with according to the sequence table of DPD core.
Concrete, above-mentioned determining unit 42, specifically for: if the first DPD core to be communicated with that detecting unit 40 detects is in waiting for the image data state, on feedback path, gather for after the data and the data for the standing wave computing of predistortion operation, the data for predistortion operation that collect are passed to the first DPD core to be communicated with and carry out predistortion operation, and the data for the standing wave computing that will collect pass to the standing wave arithmetic unit and carry out the standing wave computing; If the first DPD core to be communicated with that detecting unit 40 detects, in the predistortion operation state, gathers for after the data of standing wave computing on feedback path, the data that collect are passed to the standing wave arithmetic unit and carry out the standing wave computing.
Concrete, above-mentioned determining unit 42, specifically for: the feedback path data that collect and forward path data are passed to the first DPD core to be communicated with and carry out predistortion operation; The first forward power, reflection power, the second forward power and the feedback power collected passed to the standing wave arithmetic unit and carry out the calculating of standing wave value, when the standing wave value calculated is greater than setting threshold, produces the standing wave alarm and close power amplifier.
Obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention also is intended to comprise these changes and modification interior.
Claims (12)
1. the data processing method based on multinuclear multichannel RRU, is characterized in that, comprising:
In setting cycle, detect the current running status of Contemporary Digital predistortion DPD core and the first DPD core to be communicated with except described current DPD core of choosing; Wherein, described current DPD checks a service channel of answering and is communicated with feedback path, and all DPD check the service channel of answering and share described feedback path;
When described current DPD core being detected in the predistortion operation state, described feedback network is checked to a service channel of answering with the described first DPD to be communicated with and be communicated with; And, according to the current running status of the described first DPD core to be communicated with, determine and need the data that gather and the computing that need to carry out.
2. the method for claim 1, is characterized in that, before detecting the current running status of current DPD core and the first DPD core to be communicated with except described current DPD core of determining, also comprises:
When radio frequency remote unit RRU receives the data transmission instruction, according to all DPD core of sequencing periodic polls in the DPD core sequence table of setting up in advance, initialization also starts the DPD core be polled to.
3. method as claimed in claim 2, is characterized in that, chooses the process of the first DPD core to be communicated with except described current DPD core, specifically comprises:
When monitoring being communicated with number of times and being less than setting threshold of the service channel that has at least a DPD to check to answer and feedback path except described current DPD core, choose the DPD core of described connection number of times minimum as the first DPD core to be communicated with;
When monitoring DPD except described current DPD core and check being communicated with number of times and all being not less than setting threshold of the service channel of answering and feedback path, if have a DPD core at least in waiting for the image data state except described current DPD core, choose the DPD core of described connection number of times minimum as the first DPD core to be communicated with; If the DPD core except described current DPD core, all in the predistortion operation state, is chosen the DPD core of described current DPD core back as the first DPD core to be communicated with according to the sequence table of described DPD core.
4. the method for claim 1, is characterized in that, according to the current running status of the described first DPD core to be communicated with, determines and need the data that gather and the computing that need to carry out, specifically comprises:
If the described first DPD core to be communicated with is in waiting for the image data state, on described feedback path, gather for after the data and the data for the standing wave computing of predistortion operation, the data for predistortion operation that collect are passed to the described first DPD core to be communicated with and carry out predistortion operation, and the data for the standing wave computing that will collect pass to the standing wave arithmetic unit and carry out the standing wave computing;
If the described first DPD core to be communicated with, in the predistortion operation state, gathers for after the data of standing wave computing on described feedback path, the data that collect are passed to the standing wave arithmetic unit and carry out the standing wave computing.
5. method as claimed in claim 4, it is characterized in that, the described data for predistortion operation comprise feedback path data and forward path data, and the described data for the standing wave computing comprise the first forward power, reflection power, the second forward power and feedback power.
6. method as claimed in claim 5, it is characterized in that, the data for predistortion operation that collect are passed to the described first DPD core to be communicated with and carry out predistortion operation, specifically comprise: the described feedback path data that collect and described forward path data are passed to the described first DPD core to be communicated with and carry out predistortion operation;
The data for the standing wave computing that collect are passed to the standing wave arithmetic unit and carry out the standing wave computing, specifically comprise: described the first forward power, reflection power, the second forward power and the feedback power collected passed to the standing wave arithmetic unit and carry out the calculating of standing wave value, when the standing wave value calculated is greater than setting threshold, produces the standing wave alarm and close power amplifier.
7. the data processing equipment based on multinuclear multichannel RRU, is characterized in that, comprising:
Detecting unit, in setting cycle, detect the current running status of Contemporary Digital predistortion DPD core and the first DPD core to be communicated with except described current DPD core of choosing; Wherein, described current DPD checks a service channel of answering and is communicated with feedback path, and all DPD check the service channel of answering and share described feedback path;
Connected unit, for described current DPD core being detected when described detecting unit when the predistortion operation state, check a service channel of answering by described feedback network with the described first DPD to be communicated with and be communicated with;
Determining unit, for the current running status of the described first DPD core to be communicated with of detecting according to described detecting unit, determine and need the data that gather and the computing that need to carry out.
8. device as claimed in claim 7, is characterized in that, also comprises poll units, for:
When radio frequency remote unit RRU receives the data transmission instruction, according to all DPD core of sequencing periodic polls in the DPD core sequence table of setting up in advance, initialization also starts the DPD core be polled to.
9. device as claimed in claim 8, is characterized in that, also comprise and choose unit, for:
When monitoring being communicated with number of times and being less than setting threshold of the service channel that has at least a DPD to check to answer and feedback path except described current DPD core, choose the DPD core of described connection number of times minimum as the first DPD core to be communicated with;
When monitoring DPD except described current DPD core and check being communicated with number of times and all being not less than setting threshold of the service channel of answering and feedback path, if have a DPD core at least in waiting for the image data state except described current DPD core, choose the DPD core of described connection number of times minimum as the first DPD core to be communicated with; If the DPD core except described current DPD core, all in the predistortion operation state, is chosen the DPD core of described current DPD core back as the first DPD core to be communicated with according to the sequence table of described DPD core.
10. device as claimed in claim 7, is characterized in that, described determining unit, specifically for:
If the described first DPD core to be communicated with that described detecting unit detects is in waiting for the image data state, on described feedback path, gather for after the data and the data for the standing wave computing of predistortion operation, the data for predistortion operation that collect are passed to the described first DPD core to be communicated with and carry out predistortion operation, and the data for the standing wave computing that will collect pass to the standing wave arithmetic unit and carry out the standing wave computing;
If the described first DPD core to be communicated with that described detecting unit detects, in the predistortion operation state, gathers for after the data of standing wave computing on described feedback path, the data that collect are passed to the standing wave arithmetic unit and carry out the standing wave computing.
11. device as claimed in claim 10, is characterized in that, described determining unit, specifically for: the feedback network data that collect and forward direction through path data are passed to the described first DPD core to be communicated with and carry out predistortion operation;
The first forward power, reflection power, the second forward power and the feedback power collected passed to the standing wave arithmetic unit and carry out the calculating of standing wave value, when the standing wave value calculated is greater than setting threshold, produces the standing wave alarm and close power amplifier.
12. a radio frequency remote unit RRU, is characterized in that, comprises the described data processing equipment based on multinuclear multichannel RRU as arbitrary as claim 7-11.
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| WO2021057302A1 (en) * | 2019-09-29 | 2021-04-01 | 中兴通讯股份有限公司 | Digital pre-distortion implementation method and system, readable storage medium, and dpd apparatus |
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| CN101984703A (en) * | 2010-11-04 | 2011-03-09 | 新邮通信设备有限公司 | Method and device for determining downlink power of radio remote unit (RRU) |
| US20110156815A1 (en) * | 2009-12-21 | 2011-06-30 | Dali Systems Co., Ltd. | Modulation agnostic digital hybrid mode power amplifier system and method |
| CN102413084A (en) * | 2010-09-21 | 2012-04-11 | 中兴通讯股份有限公司 | Digital pre-distortion system and digital pre-distortion processing method |
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| US20110156815A1 (en) * | 2009-12-21 | 2011-06-30 | Dali Systems Co., Ltd. | Modulation agnostic digital hybrid mode power amplifier system and method |
| CN102413084A (en) * | 2010-09-21 | 2012-04-11 | 中兴通讯股份有限公司 | Digital pre-distortion system and digital pre-distortion processing method |
| CN101984703A (en) * | 2010-11-04 | 2011-03-09 | 新邮通信设备有限公司 | Method and device for determining downlink power of radio remote unit (RRU) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021057302A1 (en) * | 2019-09-29 | 2021-04-01 | 中兴通讯股份有限公司 | Digital pre-distortion implementation method and system, readable storage medium, and dpd apparatus |
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| CN103457889B (en) | 2016-05-11 |
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