CN103188009B - Signal acceptance method and device - Google Patents

Signal acceptance method and device Download PDF

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Publication number
CN103188009B
CN103188009B CN201110459619.5A CN201110459619A CN103188009B CN 103188009 B CN103188009 B CN 103188009B CN 201110459619 A CN201110459619 A CN 201110459619A CN 103188009 B CN103188009 B CN 103188009B
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calibration
passage
gain
rru
bbu
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CN103188009A (en
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刘娟维
皇甫祯
杨东良
山海丰
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ZTE Corp
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ZTE Corp
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Priority to CN201110459619.5A priority Critical patent/CN103188009B/en
Priority to PCT/CN2012/081209 priority patent/WO2013097486A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/10—Monitoring; Testing of transmitters
    • H04B17/11—Monitoring; Testing of transmitters for calibration
    • H04B17/12—Monitoring; Testing of transmitters for calibration of transmit antennas, e.g. of the amplitude or phase

Abstract

The invention discloses a kind of signal acceptance method and device, in the above-mentioned methods, the calibration-gain that BBU is got according to antenna calibration handling process, it is determined that needing to be arranged to enabled passage；Result after determination is notified RRU by BBU, so that RRU uses enabled channel receiving signal.According to technical scheme provided by the invention, the beamforming capabilities for improving antenna are reached, strengthen the uniformity of passage, improve the accuracy of RRU upstream channel gains calibration, antenna calibration is triggered to improve the uniformity of the phase and amplitude of passage by channel status change or channel alarm state change, for calibrating underproof passage report and alarm to network management subsystem, the effect for the possibility that network is repaired in time ensure that.

Description

Signal acceptance method and device
Technical field
The present invention relates to the communications field, in particular to a kind of signal acceptance method and device.
Background technology
Antenna system (Smart Antenna System, referred to as SAS) by aerial array, multichannel transmitting-receiving machine with And spatial domain signal processing module is formed.The principle of smart antenna is that radio signal is oriented into specific direction, produces space Directional beam, antenna main beam is set to be directed at subscriber signal arrival direction (Direction ofArrival, referred to as DOA), secondary lobe Or null alignment interference signal arrival direction, reach fully efficiently using mobile subscriber's signal and deletion or suppress interference signal Purpose.Due to interchannel because the imperfection of circuit introduces amplitude, the difference of phase, the influence brought to passage reciprocity, need Channel correcting system is wanted to compensate the inconsistency of RRU transceiver channels.In the transmission of reality, complete channel reciprocity is not only Between reciprocity including wireless channel, in addition to antenna opening and baseband processing unit (Base Band Unit, referred to as BBU) Radio-frequency channel reciprocity.TD_LTE base stations, in order to strengthen the reciprocity of radio-frequency channel, generally use day in system base-station side Line is calibrated.
Subsystem graph of a relation that antenna calibration is related to as shown in figure 1, including：Nms subsystem, BBU, remote radio list First (Remote Radio Unit, referred to as RRU), wherein, nms subsystem, for managing BBU and RRU, antenna can be initiated Calibration；BBU includes calibration management module and base band calibration module, and calibration management module, which is responsible for calibration parameter, (includes RRU antenna Bitmap etc.) communication between configuration, calibration process management, BBU and RRU, and can be to nms subsystem report and alarm；Base band Calibration module mainly be responsible between base band and RRU calibration process (including by control word indicate calibration start, to RRU send Calibrating sequence, indicate that calibration terminates by control word).RRU, the main control word instruction be responsible for response BBU and issued, is received Sending calibration sequence under BBU, calibration process is handled by calibration network.
In TD_LTE base stations, existing antenna calibration technology comprises the following steps：
Step 1: calibration trigger source initiates antenna calibration to calibration management module, (antenna calibration trigger source includes：Webmaster Subsystem triggering, RRU triggerings, BBU cycles trigger), calibration management module notifies RRU and base band calibration module antenna calibration respectively Start.
Step 2: base band calibration module receives calibration request, RRU is notified to start to calibrate by calibrating control word.It passes through Antenna calibration is carried out between calibrating sequence and RRU.After calibration terminates, base band calibration module notifies RRU bottoms by calibrating control word Layer calibration terminates.
Step 3: base band calibration module notice calibration management module antenna calibration terminates.Antenna calibration module notice RRU is high Layer software antenna calibration terminates.
However, there is following defect and deficiency in existing BBU sides antenna calibration method：
In a calibration process, calibrating the passage of failure reduces the wave beam forming performance of antenna, becomes the uniformity of passage Difference.The uniformity (including phase equalization and amplitude coincidence) of passage is changed by channel status or alarm status change (produces Or disappear) influence, if channel status change or channel alarm state change, BBU need to adjust by antenna calibration logical The uniformity in road, however, existing collimation technique is not carried out the demand.
The content of the invention
The invention provides a kind of signal acceptance method and device, at least to solve BBU sides antenna calibration in correlation technique During, calibrating the passage of failure reduces the wave beam forming performance of antenna, make passage uniformity be deteriorated the problem of.
A kind of according to an aspect of the invention, there is provided signal acceptance method.
Included according to the signal acceptance method of the present invention：The calibration-gain that BBU is got according to antenna calibration handling process, It is determined that need to be arranged to enabled passage；Result after determination is notified RRU by BBU, so that RRU is believed using enabled channel reception Number.
In the above-mentioned methods, calibration-gain is obtained according to antenna calibration handling process in BBU, it is determined that needing to be arranged to enabled Passage before, in addition to：BBU receives the notification message of the channel status change or the channel alarm change that come from RRU.
In the above-mentioned methods, BBU obtains calibration-gain according to antenna calibration handling process, it is determined that needing to be arranged to enabled Passage includes：Step A：BBU obtains calibration-gain by antenna calibration handling process；Step B：BBU is according to the school of each passage Quasi- gain calculates Acquisition channel calibration-gain average；Step C：BBU is equal by the calibration-gain of each passage and passage calibration-gain The difference of value is respectively compared with first threshold set in advance；Step D：BBU is by the calibration of each passage in multiple passages The difference of gain and the passage calibration-gain average of multiple passages compared with first threshold, is more than if there is difference respectively Or the passage equal to first threshold, it is arranged to not enable above or equal to the passage of first threshold, it is big if there is no difference In or equal to first threshold passage, perform step E；Step E：BBU determines that the passage that difference is less than first threshold is enabled logical Road；Step F：If there is the passage for being arranged to not enable, base band calibration module is sent out again according to the calibrated channel bitmap of renewal Antenna calibration is played, returns and performs step A, otherwise, base band calibration terminates, and performs step G；Step G：Base band calibration module will be calibrated As a result return to calibration control module, calibrate the calibrated channel bitmap of control module config update to RRU.
In the above-mentioned methods, step G also includes：BBU statistics differences are more than or equal to the number of the passage of first threshold； BBU will be compared with Second Threshold set in advance, if it is greater, then sending alarm by the number of the passage of statistics.
In the above-mentioned methods, BBU includes the result notice RRU after determination：BBU sends renewal antenna calibration to RRU and led to The bitmap message in road；BBU receives the response message for the bitmap message for coming from RRU.
In the above-mentioned methods, when RRU is using enabled channel receiving signal, if up calibration, in addition to：RRU connects Receive and come from the BBU channel gain corresponding to each passage in enabled passage that needs to be arranged to and compensate difference；RRU judges corresponding Difference whether be more than the 3rd threshold value set in advance；It is more than the passage of the 3rd threshold value for corresponding difference, RRU is according to corresponding Difference adjustment passage gain；RRU judges to adjust whether number is less than number set in advance；If it is, RRU is sent out again Play antenna calibration handling process.
According to another aspect of the present invention, there is provided a kind of signal receiving device.
Included according to the signal receiving device of the present invention：BBU；The BBU includes：Base band calibration module, for according to antenna The calibration-gain that calibration process flow is got, it is determined that needing to be arranged to enabled passage；Calibration management module, for controlling day Line calibrates flow, and the result after calibration is notified into RRU, so that RRU uses enabled channel receiving signal.
In said apparatus, BBU also includes：First receiving module, for receive come from RRU channel status change or The notification message of person's channel alarm change.
In said apparatus, base band calibration module includes：Acquiring unit, for being got according to antenna calibration handling process Calibration-gain；Computing unit, for calculating Acquisition channel calibration-gain average according to the calibration-gain of each passage；Compare list Member, for the difference of the calibration-gain of each passage and passage calibration-gain average to be entered with first threshold set in advance respectively Row compares；Execution unit, for the calibration-gain of each passage in multiple passages and the passage calibration-gain of multiple passages is equal The difference of value is more than or equal to the passage of first threshold if there is difference respectively compared with first threshold, will be greater than or Passage equal to first threshold is arranged to not enable passage, initiates antenna calibration again, acquiring unit is triggered, if there is no difference Value triggers determining unit more than or equal to the passage of first threshold；And determining unit, for determining that difference is less than first threshold Passage be enabled passage.And calibration result is returned into calibration management module.
In said apparatus, above-mentioned calibration management module includes：Statistic unit, it is more than or equal to first for statistics difference The number of the passage of threshold value；Alarm Unit, for the number of the passage of statistics will to be compared with Second Threshold set in advance Compared with if it is greater, then sending alarm.
For up calibration, said apparatus also includes：RRU；The RRU includes：Second receiving module, come from for receiving BBU's needs to be arranged to difference corresponding to each passage in enabled passage；First judge module, for judging corresponding difference Whether the 3rd threshold value set in advance is more than；Adjusting module, for being more than the passage of the 3rd threshold value for corresponding difference, according to The gain of corresponding difference adjustment passage；Second judge module, for judging to adjust whether number is less than number set in advance； Initiation module, for when the output of the second judge module is is, initiating antenna calibration handling process again.
In said apparatus, above-mentioned calibration management module includes：Transmitting element, for sending renewal antenna calibration to RRU The bitmap message of passage；Receiving unit, for receiving the response message for the bitmap message for coming from RRU.
By the present invention, determine that needs are arranged to using the BBU calibration-gains got according to antenna calibration handling process Result after determination is simultaneously notified RRU by enabled passage, so that RRU solves related skill using enabled channel receiving signal In art during the antenna calibration of BBU sides, calibrating the passage of failure reduces the wave beam forming performance of antenna, makes the uniformity of passage The problem of variation, and then the beamforming capabilities of antenna calibration are improved, strengthen the uniformity of passage, it is up to improve RRU The accuracy of channel gain calibration, antenna calibration is triggered to improve passage by channel status change or channel alarm state change Phase and amplitude uniformity, for calibrating underproof passage report and alarm to network management subsystem, ensure that network The effect for the possibility repaired in time.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the flow chart of signal acceptance method according to embodiments of the present invention；
Fig. 2 is that RRU according to the preferred embodiment of the invention is adjusted by difference corresponding to each passage in enabled passage The flow chart of channel gain；
Fig. 3 is the flow chart of signal acceptance method according to the preferred embodiment of the invention；
Fig. 4 is the structured flowchart of signal receiving device according to embodiments of the present invention；And
Fig. 5 is the structured flowchart of signal receiving device according to the preferred embodiment of the invention.
Embodiment
Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that do not conflicting In the case of, the feature in embodiment and embodiment in the application can be mutually combined.
Fig. 1 is the flow chart of signal acceptance method according to embodiments of the present invention.As shown in figure 1, this method mainly includes Handle below：
Step S102：The calibration-gain that BBU is got according to antenna calibration handling process, it is determined that needing to be arranged to enabled Passage；
Step S104：Result after determination is notified RRU by BBU, so that RRU uses enabled channel receiving signal.
In correlation technique, during the antenna calibration of BBU sides, calibrating the passage of failure reduces the wave beam forming of antenna Can, cause the uniformity of passage to be deteriorated etc..In the method shown in Fig. 1, school that BBU is got according to antenna calibration handling process Quasi- gain determines to need to be arranged to enabled passage and the result after determination is notified into RRU, so that RRU is connect using enabled passage The collection of letters number, and then the beamforming capabilities of antenna calibration are improved, enhance the uniformity of passage.
It should be noted that after base band calibration module completes calibration, calibration result is carried, channel gain compensates difference, more New calibrated channel information, notice calibration management module antenna calibration terminate.After calibration management module receives antenna calibration response, If up calibration, channel gain compensation difference is configured to RRU, and by the calibrated channel information configuration of renewal to RRU.
Preferably, before step S102 is performed, following processing can also be included：BBU receives the passage shape for coming from RRU State changes or the notification message of channel alarm change.
It should be noted that the antenna calibration of the invention initiated in existing nms subsystem, the periodic antenna schools of BBU On the basis of three kinds of calibration trigger sources of antenna calibration that accurate, RRU is initiated, channel status change is increased newly in addition or channel alarm becomes Change the antenna calibration trigger source of triggering, wherein, channel status change mainly includes：Whether current each passage can use；Passage is accused Alert change mainly includes：Passage standing-wave ratio alarm, the alarm of passage excess temperature etc..BBU receives RRU channel status change or logical The notification message of road alarm change is to trigger antenna calibration flow.
Preferably, in step s 102, BBU determines that needs are arranged to make according to the calibration-gain obtained by calibration process The passage of energy can include following processing step：
Step A：BBU obtains calibration-gain by antenna calibration handling process；
Step B：BBU calculates Acquisition channel calibration-gain average according to the calibration-gain of each passage；
Step C：BBU by the difference of the calibration-gain of each passage and passage calibration-gain average respectively with it is set in advance First threshold is compared；
Step D：BBU is by the passage calibration-gain average of the calibration-gain of each passage in multiple passages and multiple passages Compared with first threshold, the passage of first threshold is more than or equal to if there is difference respectively for difference, above or equal to The passage of first threshold is arranged to not enable, and the passage of first threshold is more than or equal to if there is no difference, performs step E；
Step E：BBU determines that the passage that difference is less than first threshold is enabled passage；
Step F：If there is the passage for being arranged to not enable, base band calibration module according to renewal calibrated channel bitmap, Again antenna calibration is initiated, returns and performs step A, otherwise, base band calibration module returns to calibration result, and base band calibration terminates, and Calibration result is returned into calibration management module；
Step G：The calibration result that calibration management module As-received returns with calibration module, configuration calibrated channel bitmap arrive RRU。
It should be noted that after the calibration-gain that BBU obtains each passage, each passage calibration-gain and passage are calculated The difference of calibration-gain average, obtain the calibration-gain difference of each passage.When passage calibration-gain difference exceedes default lead to During road gain difference thresholding (equivalent to above-mentioned first threshold), it is believed that passage calibration is unqualified.Then corresponding passage is set Not enable, calibrated channel information is updated, antenna calibration is initiated again according to the calibrated channel information after renewal, wherein, set For not enabled passage during antenna calibration is initiated again without calibration, said process is repeated, until in calibration information In the absence of the underproof passage of calibration.When antenna calibration trigger source initiates antenna calibration again, base band calibration module is according to first The channel information for beginning to configure starts to calibrate.
Certainly, above-mentioned calculating process is only a kind of preferable calculation of the present invention, and the simplest mode of the present invention is also Can by BBU by the difference of the calibration-gain of each passage and passage calibration-gain average respectively with the first threshold set in advance Value is only once compared, that is, determines that the passage that difference is less than first threshold is enabled passage；Or when calculating difference Passage calibration-gain average is not used, but selects object of the mean-square value of each channel gain as calculating difference.
During being preferable to carry out, above-mentioned steps G can further include following processing：
(1) BBU statistics differences are more than or equal to the number of the passage of first threshold；
(2) BBU will be compared with Second Threshold set in advance, if it is greater, then hair by the number of the passage of statistics Go out alarm.
It should be noted that BBU during an antenna calibration is carried out, it is necessary to count the passage for being arranged to not enable Number, when the number of not enabled passage is more than numerical value set in advance (equivalent to above-mentioned Second Threshold), to webmaster initiation Alarm, to ensure possibility that network is repaired in time.Such as：In 8 passage RRU, if not enabled passage can be preset When number is more than 4, alarm just is sent to webmaster, is easy to repair in time.
Preferably,, can be with if up calibration when RRU is using enabled channel receiving signal in step S104 Including following processing：
(1) RRU, which is received, comes from the BBU channel gain corresponding to each passage in enabled passage that needs to be arranged to and compensates Difference；
(2) whether channel gain compensation difference is more than the 3rd threshold value set in advance corresponding to RRU judgements；
(3) it is more than the passage of the 3rd threshold value, RRU channel gains corresponding to for corresponding channel gain compensation difference Compensate the gain of difference adjustment passage；
(4) RRU judges to adjust whether number is less than number set in advance；
(5) if it is, RRU initiates antenna calibration handling process again.
It should be noted that after antenna calibration processing terminates, upstream channel gain compensation is configured to by calibration management module RRU.RRU compensates configuration adjustment channel gain by channel gain, reaches adjustment calibration gain (equivalent to above-mentioned 3rd threshold value) Purpose, the wherein calibration gain is set in advance, and RRU channel gain is closer to calibration gain, then antenna calibration knot Fruit is better.
The process that is preferable to carry out for adjusting channel gain to RRU with reference to Fig. 2 is further described.
Fig. 2 is that RRU according to the preferred embodiment of the invention is adjusted by difference corresponding to each passage in enabled passage The flow chart of channel gain.As shown in Fig. 2 this method can include following processing step：
Step S202：BBU base band calibration module completes antenna calibration handling process；
Step S204：If up calibration, calibration management module Acquisition channel gain compensation difference, RRU is configured to；
Step S206：RRU receives BBU upstream channel gain difference compensation with postponing, and compares the passage for being arranged to enabled In difference corresponding to each passage whether be more than default calibration gain；
Step S208：If it does, the gain of RRU difference adjustment passages corresponding to；Otherwise, step S214 is gone to, Flow terminates；
Step S210：Judge adjust number whether be less than it is default adjustment number (such as：3 times)；
Step S212：If it is less, RRU initiates antenna calibration handling process again, step S202 is gone to, is adjusted simultaneously Counter adds 1；Otherwise, step S214 is continued executing with；
Step S214：Flow terminates.
Preferably, in step S104, the result notice RRU after determination can be included following processing by BBU：
(1) BBU sends the bitmap message of renewal antenna calibration passage to RRU；
(2) BBU receives the response message for the bitmap message for coming from RRU.
Above-mentioned preferred embodiment is further described with reference to Fig. 3.
Fig. 3 is the flow chart of signal acceptance method according to the preferred embodiment of the invention.As shown in figure 3, with 8 passage RRU Exemplified by, this method includes following processing step：
Step S302：Calibration management module initiates antenna calibration request and arrives base band calibration module, and base band is calibrated this module and opened Begin to calibrate；
Step S304：Base band calibrates this module in a calibration process, obtains the calibration-gain of each passage；
Step S306：The difference of each passage calibration-gain and 8 passage calibration-gain averages is calculated, obtains each passage Calibration-gain difference；
Step S308：Judge whether the calibration-gain of each passage exceedes default channel gain difference threshold.It is if super Cross, it is believed that passage calibration failure, then continue executing with step S310；If not less than going to step S314；
Step S310：It will be arranged to not enable more than passage corresponding to default channel gain difference threshold；
Step S312：After the completion of 8 passages judge, base band calibration module is sent out again according to the calibrated channel information after renewal Antenna calibration flow is played, goes to step S302；Until all enabled passages are calibrated successfully, base band calibration module responds calibration pipe Reason modular calibration terminates response, in response and carries 8 passage calibration difference results, the calibrated channel information of renewal, calibration is tied The information such as fruit；
Step S314：Base band calibration module reports calibration result to calibration management module；
Step S316：Whether the channel number of calibration management module comparison calibration failure is more than calibrated channel failure thresholding, If the passage of calibration failure exceedes calibration failure passage thresholding, step S316 is continued executing with；If going to step not less than if Rapid S318；
Step S318：Report and alarm is to nms subsystem；
Step S320：Calibrated channel information after calibration management module config update terminates to RRU, calibration；RRU receives school Quasi- channel information configures current calibrated channel information, while carry out calibrated channel information configuration response, calibration management with postponing After module receives renewal calibrated channel information answer, flow terminates.
Fig. 4 is the structured flowchart of signal receiving device according to embodiments of the present invention.As shown in figure 4, the signal receives dress Putting mainly includes：BBU10；BBU10 can include：Base band calibration module 100, for being got according to antenna calibration handling process Calibration-gain, it is determined that needing to be arranged to enabled passage；Calibration management module 102, for the result after determination to be notified RRU, so that RRU uses enabled channel receiving signal.
In correlation technique, during the antenna calibration of BBU sides, calibrating the passage of failure reduces the wave beam forming of antenna Can, cause the uniformity of passage to be deteriorated etc..In the device shown in Fig. 4, base band calibration module 100 is according to antenna calibration processing stream The calibration-gain that journey is got, it is determined that needing to be arranged to enabled passage；Calibration management module 102 notifies the result after determination Radio frequency remote unit RRU, so that RRU uses enabled channel receiving signal.And then antenna beam figuration ability is improved, strengthen The uniformity of passage.
Preferably, as shown in figure 5, in said apparatus, above-mentioned BBU can also include：First receiving module 104, for connecing Receive the notification message of the channel status change or the channel alarm change that come from RRU.
Preferably, as shown in figure 5, above-mentioned base band calibration module 100 may further include：Acquiring unit (is not shown in figure Go out), for the calibration-gain got according to antenna calibration handling process；Computing unit (not shown), for according to each The calibration-gain of individual passage calculates Acquisition channel calibration-gain average；Comparing unit (not shown), for by each passage Calibration-gain and passage calibration-gain average difference respectively compared with first threshold set in advance；Execution unit (not shown), for by the passage calibration-gain average of the calibration-gain of each passage in multiple passages and multiple passages Compared with first threshold, the passage of first threshold is more than or equal to if there is difference respectively for difference, above or equal to The passage of first threshold is arranged to not enable passage, triggers acquiring unit, is more than or equal to first threshold if there is no difference Passage, trigger determining unit；And determining unit (not shown), for determine difference be less than first threshold passage be Enabled passage.
Preferably, as shown in figure 5, above-mentioned calibration management module 102 can include：Statistic unit (not shown), use It is more than or equal to the number of the passage of first threshold in statistics difference；Alarm Unit (not shown), for leading to statistics The number in road will be compared with Second Threshold set in advance, if it is greater, then sending alarm.
Preferably, as shown in figure 5, said apparatus can also include：RRU20；RRU20 can include：Second receiving module 200, for receive come from BBU need to be arranged to difference corresponding to each passage in enabled passage；First judge module 202, for judging whether corresponding difference is more than the 3rd threshold value set in advance；Adjusting module 204, for for corresponding difference Value adjusts the gain of passage according to corresponding difference more than the passage of the 3rd threshold value；Second judge module 206, for judging to adjust Whether whole number is less than number set in advance；Initiation module 208, for when the output of the second judge module is is, sending out again Play antenna calibration handling process.
Preferably, as shown in figure 5, above-mentioned calibration management module 102 can further comprise：Transmitting element is (in figure not Show), for sending the bitmap message of renewal antenna calibration passage to RRU；Receiving unit (not shown), come for receiving From the response message of the bitmap message in RRU.
As can be seen from the above description, the present invention realizes following technique effect：At channel adaptive calibration Reason, the beamforming capabilities of antenna are enhanced, improve the uniformity of passage.Changed by channel status change or channel alarm Antenna calibration is triggered to improve the uniformity of the phase and amplitude of passage, it is up to improve RRU by the configuration of channel gain difference The accuracy of channel gain calibration.
Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general Computing device realize that they can be concentrated on single computing device, or be distributed in multiple computing devices and formed Network on, alternatively, they can be realized with the program code that computing device can perform, it is thus possible to they are stored Performed in the storage device by computing device, and in some cases, can be with different from shown in order execution herein The step of going out or describing, they are either fabricated to each integrated circuit modules respectively or by multiple modules in them or Step is fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware and software combination.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies Change, equivalent substitution, improvement etc., should be included in the scope of the protection.

Claims (10)

  1. A kind of 1. signal acceptance method, it is characterised in that including：
    The calibration-gain that baseband processing unit BBU is got according to antenna calibration handling process, it is determined that needing to be arranged to enabled Passage；
    Result after determination is notified radio frequency remote unit RRU by the BBU, so that the RRU is believed using enabled channel reception Number；
    If up calibration, when the RRU is using the enabled channel receiving signal, in addition to：
    The RRU, which is received, to be come from the needs of the BBU and is arranged to passage corresponding to each passage in enabled passage The difference of calibration-gain and passage calibration-gain average；
    The RRU judges whether the corresponding difference is more than the 3rd threshold value set in advance；
    It is more than the passage of the 3rd threshold value for the corresponding difference, the RRU adjusts logical according to the corresponding difference The gain in road；
    The RRU judges to adjust whether number is less than number set in advance；
    If it is, the RRU initiates antenna calibration handling process again.
  2. 2. according to the method for claim 1, it is characterised in that school is obtained according to antenna calibration handling process in the BBU Quasi- gain, it is determined that before needing to be arranged to enabled passage, in addition to：
    The BBU receives the notification message of the channel status change or the channel alarm change that come from the RRU.
  3. 3. according to the method for claim 1, it is characterised in that the BBU is obtained according to antenna calibration handling process and calibrated Gain, it is determined that needing to be arranged to enabled passage includes：
    Step A：The BBU obtains calibration-gain by the antenna calibration handling process；
    Step B：The BBU calculates Acquisition channel calibration-gain average according to the calibration-gain of each passage；
    Step C：The BBU is by the difference of the calibration-gain of each passage and the passage calibration-gain average respectively with setting in advance Fixed first threshold is compared；
    Step D：The BBU is equal by the calibration-gain of each passage in multiple passages and the passage calibration-gain of the multiple passage Compared with the first threshold, the passage of the first threshold is more than or equal to if there is difference respectively for the difference of value, The passage more than or equal to the first threshold is arranged to not enable, is more than or equal to described the if there is no difference The passage of one threshold value, perform step E；
    Step E：The BBU determines that the passage that difference is less than the first threshold is enabled passage；
    Step F：If there is the passage for being arranged to not enable, base band calibration module according to renewal calibrated channel bitmap, again Antenna calibration is initiated, returns and performs step A, otherwise, base band calibration module returns to calibration result, and base band calibration terminates, and high-ranking officers Quasi- result returns to calibration management module；
    Step G：The calibration result that calibration management module As-received returns with calibration module, configuration calibrated channel bitmap to RRU.
  4. 4. according to the method for claim 3, it is characterised in that the step G also includes：
    The BBU statistics differences are more than or equal to the number of the passage of the first threshold；
    The BBU will be compared with Second Threshold set in advance, if it is greater, then hair by the number of the passage of the statistics Go out alarm.
  5. 5. according to the method for claim 3, it is characterised in that the result after the determination is notified the RRU by the BBU Including：
    The BBU sends the bitmap message of renewal antenna calibration passage to the RRU；
    The BBU receives the response message for the bitmap message for coming from the RRU.
  6. 6. a kind of signal receiving device, it is characterised in that described device includes：Baseband processing unit BBU；
    The BBU includes：
    Base band calibration module, for the calibration-gain got according to antenna calibration handling process, it is determined that needing to be arranged to enabled Passage；
    Calibration management module, for controlling antenna calibration flow, the result after calibration is notified into RRU, so that the RRU uses make The channel receiving signal of energy；
    Second receiving module, come from the needing to be arranged in enabled passage corresponding to each passage of the BBU for receiving Difference；
    First judge module, for judging whether the corresponding difference is more than the 3rd threshold value set in advance；
    Adjusting module, for being more than the passage of the 3rd threshold value for the corresponding difference, according to the corresponding difference Adjust the gain of passage；
    Second judge module, for judging to adjust whether number is less than number set in advance；
    Initiation module, for when second judge module output is is, initiating antenna calibration handling process again.
  7. 7. device according to claim 6, it is characterised in that the BBU also includes：
    First receiving module, the notice that channel status change or the channel alarm change of the RRU are come from for receiving disappear Breath.
  8. 8. device according to claim 6, it is characterised in that the base band calibration module includes：
    Acquiring unit, for getting calibration-gain according to antenna calibration handling process；
    Computing unit, for calculating Acquisition channel calibration-gain average according to the calibration-gain of each passage；
    Comparing unit, for by the difference of the calibration-gain of each passage and the passage calibration-gain average respectively with setting in advance Fixed first threshold is compared；
    Execution unit, for the calibration-gain of each passage in multiple passages and the passage calibration-gain of the multiple passage is equal Compared with the first threshold, the passage of the first threshold is more than or equal to if there is difference respectively for the difference of value, The passage more than or equal to the first threshold is arranged to not enable passage, initiates antenna calibration again, described in triggering Acquiring unit, the passage of the first threshold is more than or equal to if there is no difference, triggers determining unit；And
    The determining unit, for determining that the passage that difference is less than the first threshold is enabled passage, and calibration result is returned Back to calibration management module.
  9. 9. device according to claim 8, it is characterised in that the calibration management module includes：
    Statistic unit, the number of the passage of the first threshold is more than or equal to for statistics difference；
    Alarm Unit, for will be compared with Second Threshold set in advance, if greatly by the number of the passage of the statistics In then sending alarm.
  10. 10. device according to claim 6, it is characterised in that the calibration management module includes：
    Transmitting element, for sending the bitmap message of renewal antenna calibration passage to the RRU；
    Receiving unit, for receiving the response message for the bitmap message for coming from the RRU.
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CN110024304B (en) * 2016-12-02 2021-04-09 华为技术有限公司 Phase correction method and device
CN110798253B (en) * 2018-08-02 2021-03-12 大唐移动通信设备有限公司 Antenna calibration method and device
CN113992279B (en) * 2020-07-27 2024-03-15 北京佰才邦技术股份有限公司 Interaction method of antenna calibration signaling, radio frequency unit, baseband processing unit and base station

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